diff --git a/framework/src/com/squareup/okhttp/Address.java b/framework/src/com/squareup/okhttp/Address.java
new file mode 100644
index 00000000..cd41ac99
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/Address.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp;
+
+import java.net.Proxy;
+import java.net.UnknownHostException;
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLSocketFactory;
+
+import static com.squareup.okhttp.internal.Util.equal;
+
+/**
+ * A specification for a connection to an origin server. For simple connections,
+ * this is the server's hostname and port. If an explicit proxy is requested (or
+ * {@link Proxy#NO_PROXY no proxy} is explicitly requested), this also includes
+ * that proxy information. For secure connections the address also includes the
+ * SSL socket factory and hostname verifier.
+ *
+ * HTTP requests that share the same {@code Address} may also share the same
+ * {@link Connection}.
+ */
+public final class Address {
+ final Proxy proxy;
+ final String uriHost;
+ final int uriPort;
+ final SSLSocketFactory sslSocketFactory;
+ final HostnameVerifier hostnameVerifier;
+
+ public Address(String uriHost, int uriPort, SSLSocketFactory sslSocketFactory,
+ HostnameVerifier hostnameVerifier, Proxy proxy) throws UnknownHostException {
+ if (uriHost == null) throw new NullPointerException("uriHost == null");
+ if (uriPort <= 0) throw new IllegalArgumentException("uriPort <= 0: " + uriPort);
+ this.proxy = proxy;
+ this.uriHost = uriHost;
+ this.uriPort = uriPort;
+ this.sslSocketFactory = sslSocketFactory;
+ this.hostnameVerifier = hostnameVerifier;
+ }
+
+ /** Returns the hostname of the origin server. */
+ public String getUriHost() {
+ return uriHost;
+ }
+
+ /**
+ * Returns the port of the origin server; typically 80 or 443. Unlike
+ * may {@code getPort()} accessors, this method never returns -1.
+ */
+ public int getUriPort() {
+ return uriPort;
+ }
+
+ /**
+ * Returns the SSL socket factory, or null if this is not an HTTPS
+ * address.
+ */
+ public SSLSocketFactory getSslSocketFactory() {
+ return sslSocketFactory;
+ }
+
+ /**
+ * Returns the hostname verifier, or null if this is not an HTTPS
+ * address.
+ */
+ public HostnameVerifier getHostnameVerifier() {
+ return hostnameVerifier;
+ }
+
+ /**
+ * Returns this address's explicitly-specified HTTP proxy, or null to
+ * delegate to the HTTP client's proxy selector.
+ */
+ public Proxy getProxy() {
+ return proxy;
+ }
+
+ @Override public boolean equals(Object other) {
+ if (other instanceof Address) {
+ Address that = (Address) other;
+ return equal(this.proxy, that.proxy)
+ && this.uriHost.equals(that.uriHost)
+ && this.uriPort == that.uriPort
+ && equal(this.sslSocketFactory, that.sslSocketFactory)
+ && equal(this.hostnameVerifier, that.hostnameVerifier);
+ }
+ return false;
+ }
+
+ @Override public int hashCode() {
+ int result = 17;
+ result = 31 * result + uriHost.hashCode();
+ result = 31 * result + uriPort;
+ result = 31 * result + (sslSocketFactory != null ? sslSocketFactory.hashCode() : 0);
+ result = 31 * result + (hostnameVerifier != null ? hostnameVerifier.hashCode() : 0);
+ result = 31 * result + (proxy != null ? proxy.hashCode() : 0);
+ return result;
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/Connection.java b/framework/src/com/squareup/okhttp/Connection.java
new file mode 100644
index 00000000..90424ffe
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/Connection.java
@@ -0,0 +1,321 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp;
+
+import com.squareup.okhttp.internal.Platform;
+import com.squareup.okhttp.internal.http.HttpAuthenticator;
+import com.squareup.okhttp.internal.http.HttpEngine;
+import com.squareup.okhttp.internal.http.HttpTransport;
+import com.squareup.okhttp.internal.http.RawHeaders;
+import com.squareup.okhttp.internal.http.SpdyTransport;
+import com.squareup.okhttp.internal.spdy.SpdyConnection;
+import java.io.BufferedInputStream;
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.InetSocketAddress;
+import java.net.Proxy;
+import java.net.Socket;
+import java.net.URL;
+import java.util.Arrays;
+import javax.net.ssl.SSLSocket;
+
+import static java.net.HttpURLConnection.HTTP_OK;
+import static java.net.HttpURLConnection.HTTP_PROXY_AUTH;
+
+/**
+ * Holds the sockets and streams of an HTTP, HTTPS, or HTTPS+SPDY connection,
+ * which may be used for multiple HTTP request/response exchanges. Connections
+ * may be direct to the origin server or via a proxy.
+ *
+ *
Typically instances of this class are created, connected and exercised
+ * automatically by the HTTP client. Applications may use this class to monitor
+ * HTTP connections as members of a {@link ConnectionPool connection pool}.
+ *
+ *
Do not confuse this class with the misnamed {@code HttpURLConnection},
+ * which isn't so much a connection as a single request/response exchange.
+ *
+ *
Modern TLS
+ * There are tradeoffs when selecting which options to include when negotiating
+ * a secure connection to a remote host. Newer TLS options are quite useful:
+ *
+ * - Server Name Indication (SNI) enables one IP address to negotiate secure
+ * connections for multiple domain names.
+ *
- Next Protocol Negotiation (NPN) enables the HTTPS port (443) to be used
+ * for both HTTP and SPDY transports.
+ *
+ * Unfortunately, older HTTPS servers refuse to connect when such options are
+ * presented. Rather than avoiding these options entirely, this class allows a
+ * connection to be attempted with modern options and then retried without them
+ * should the attempt fail.
+ */
+public final class Connection implements Closeable {
+ private static final byte[] NPN_PROTOCOLS = new byte[] {
+ 6, 's', 'p', 'd', 'y', '/', '3',
+ 8, 'h', 't', 't', 'p', '/', '1', '.', '1'
+ };
+ private static final byte[] SPDY3 = new byte[] {
+ 's', 'p', 'd', 'y', '/', '3'
+ };
+ private static final byte[] HTTP_11 = new byte[] {
+ 'h', 't', 't', 'p', '/', '1', '.', '1'
+ };
+
+ private final Address address;
+ private final Proxy proxy;
+ private final InetSocketAddress inetSocketAddress;
+ private final boolean modernTls;
+
+ private Socket socket;
+ private InputStream in;
+ private OutputStream out;
+ private boolean connected = false;
+ private SpdyConnection spdyConnection;
+ private int httpMinorVersion = 1; // Assume HTTP/1.1
+ private long idleStartTimeNs;
+
+ public Connection(Address address, Proxy proxy, InetSocketAddress inetSocketAddress,
+ boolean modernTls) {
+ if (address == null) throw new NullPointerException("address == null");
+ if (proxy == null) throw new NullPointerException("proxy == null");
+ if (inetSocketAddress == null) throw new NullPointerException("inetSocketAddress == null");
+ this.address = address;
+ this.proxy = proxy;
+ this.inetSocketAddress = inetSocketAddress;
+ this.modernTls = modernTls;
+ }
+
+ public void connect(int connectTimeout, int readTimeout, TunnelRequest tunnelRequest)
+ throws IOException {
+ if (connected) {
+ throw new IllegalStateException("already connected");
+ }
+ connected = true;
+ socket = (proxy.type() != Proxy.Type.HTTP) ? new Socket(proxy) : new Socket();
+ socket.connect(inetSocketAddress, connectTimeout);
+ socket.setSoTimeout(readTimeout);
+ in = socket.getInputStream();
+ out = socket.getOutputStream();
+
+ if (address.sslSocketFactory != null) {
+ upgradeToTls(tunnelRequest);
+ }
+
+ // Buffer the socket stream to permit efficient parsing of HTTP headers and chunk sizes.
+ if (!isSpdy()) {
+ int bufferSize = 128;
+ in = new BufferedInputStream(in, bufferSize);
+ }
+ }
+
+ /**
+ * Create an {@code SSLSocket} and perform the TLS handshake and certificate
+ * validation.
+ */
+ private void upgradeToTls(TunnelRequest tunnelRequest) throws IOException {
+ Platform platform = Platform.get();
+
+ // Make an SSL Tunnel on the first message pair of each SSL + proxy connection.
+ if (requiresTunnel()) {
+ makeTunnel(tunnelRequest);
+ }
+
+ // Create the wrapper over connected socket.
+ socket = address.sslSocketFactory
+ .createSocket(socket, address.uriHost, address.uriPort, true /* autoClose */);
+ SSLSocket sslSocket = (SSLSocket) socket;
+ if (modernTls) {
+ platform.enableTlsExtensions(sslSocket, address.uriHost);
+ } else {
+ platform.supportTlsIntolerantServer(sslSocket);
+ }
+
+ if (modernTls) {
+ platform.setNpnProtocols(sslSocket, NPN_PROTOCOLS);
+ }
+
+ // Force handshake. This can throw!
+ sslSocket.startHandshake();
+
+ // Verify that the socket's certificates are acceptable for the target host.
+ if (!address.hostnameVerifier.verify(address.uriHost, sslSocket.getSession())) {
+ throw new IOException("Hostname '" + address.uriHost + "' was not verified");
+ }
+
+ out = sslSocket.getOutputStream();
+ in = sslSocket.getInputStream();
+
+ byte[] selectedProtocol;
+ if (modernTls && (selectedProtocol = platform.getNpnSelectedProtocol(sslSocket)) != null) {
+ if (Arrays.equals(selectedProtocol, SPDY3)) {
+ sslSocket.setSoTimeout(0); // SPDY timeouts are set per-stream.
+ spdyConnection = new SpdyConnection.Builder(address.getUriHost(), true, in, out).build();
+ } else if (!Arrays.equals(selectedProtocol, HTTP_11)) {
+ throw new IOException(
+ "Unexpected NPN transport " + new String(selectedProtocol, "ISO-8859-1"));
+ }
+ }
+ }
+
+ /** Returns true if {@link #connect} has been attempted on this connection. */
+ public boolean isConnected() {
+ return connected;
+ }
+
+ @Override public void close() throws IOException {
+ socket.close();
+ }
+
+ /**
+ * Returns the proxy that this connection is using.
+ *
+ * Warning: This may be different than the proxy returned
+ * by {@link #getAddress}! That is the proxy that the user asked to be
+ * connected to; this returns the proxy that they were actually connected
+ * to. The two may disagree when a proxy selector selects a different proxy
+ * for a connection.
+ */
+ public Proxy getProxy() {
+ return proxy;
+ }
+
+ public Address getAddress() {
+ return address;
+ }
+
+ public InetSocketAddress getSocketAddress() {
+ return inetSocketAddress;
+ }
+
+ public boolean isModernTls() {
+ return modernTls;
+ }
+
+ /**
+ * Returns the socket that this connection uses, or null if the connection
+ * is not currently connected.
+ */
+ public Socket getSocket() {
+ return socket;
+ }
+
+ /** Returns true if this connection is alive. */
+ public boolean isAlive() {
+ return !socket.isClosed() && !socket.isInputShutdown() && !socket.isOutputShutdown();
+ }
+
+ public void resetIdleStartTime() {
+ if (spdyConnection != null) {
+ throw new IllegalStateException("spdyConnection != null");
+ }
+ this.idleStartTimeNs = System.nanoTime();
+ }
+
+ /** Returns true if this connection is idle. */
+ public boolean isIdle() {
+ return spdyConnection == null || spdyConnection.isIdle();
+ }
+
+ /**
+ * Returns true if this connection has been idle for longer than
+ * {@code keepAliveDurationNs}.
+ */
+ public boolean isExpired(long keepAliveDurationNs) {
+ return isIdle() && System.nanoTime() - getIdleStartTimeNs() > keepAliveDurationNs;
+ }
+
+ /**
+ * Returns the time in ns when this connection became idle. Undefined if
+ * this connection is not idle.
+ */
+ public long getIdleStartTimeNs() {
+ return spdyConnection == null ? idleStartTimeNs : spdyConnection.getIdleStartTimeNs();
+ }
+
+ /** Returns the transport appropriate for this connection. */
+ public Object newTransport(HttpEngine httpEngine) throws IOException {
+ return (spdyConnection != null) ? new SpdyTransport(httpEngine, spdyConnection)
+ : new HttpTransport(httpEngine, out, in);
+ }
+
+ /**
+ * Returns true if this is a SPDY connection. Such connections can be used
+ * in multiple HTTP requests simultaneously.
+ */
+ public boolean isSpdy() {
+ return spdyConnection != null;
+ }
+
+ public SpdyConnection getSpdyConnection() {
+ return spdyConnection;
+ }
+
+ /**
+ * Returns the minor HTTP version that should be used for future requests on
+ * this connection. Either 0 for HTTP/1.0, or 1 for HTTP/1.1. The default
+ * value is 1 for new connections.
+ */
+ public int getHttpMinorVersion() {
+ return httpMinorVersion;
+ }
+
+ public void setHttpMinorVersion(int httpMinorVersion) {
+ this.httpMinorVersion = httpMinorVersion;
+ }
+
+ /**
+ * Returns true if the HTTP connection needs to tunnel one protocol over
+ * another, such as when using HTTPS through an HTTP proxy. When doing so,
+ * we must avoid buffering bytes intended for the higher-level protocol.
+ */
+ public boolean requiresTunnel() {
+ return address.sslSocketFactory != null && proxy != null && proxy.type() == Proxy.Type.HTTP;
+ }
+
+ /**
+ * To make an HTTPS connection over an HTTP proxy, send an unencrypted
+ * CONNECT request to create the proxy connection. This may need to be
+ * retried if the proxy requires authorization.
+ */
+ private void makeTunnel(TunnelRequest tunnelRequest) throws IOException {
+ RawHeaders requestHeaders = tunnelRequest.getRequestHeaders();
+ while (true) {
+ out.write(requestHeaders.toBytes());
+ RawHeaders responseHeaders = RawHeaders.fromBytes(in);
+
+ switch (responseHeaders.getResponseCode()) {
+ case HTTP_OK:
+ return;
+ case HTTP_PROXY_AUTH:
+ requestHeaders = new RawHeaders(requestHeaders);
+ URL url = new URL("https", tunnelRequest.host, tunnelRequest.port, "/");
+ boolean credentialsFound =
+ HttpAuthenticator.processAuthHeader(HTTP_PROXY_AUTH, responseHeaders, requestHeaders,
+ proxy, url);
+ if (credentialsFound) {
+ continue;
+ } else {
+ throw new IOException("Failed to authenticate with proxy");
+ }
+ default:
+ throw new IOException(
+ "Unexpected response code for CONNECT: " + responseHeaders.getResponseCode());
+ }
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/ConnectionPool.java b/framework/src/com/squareup/okhttp/ConnectionPool.java
new file mode 100644
index 00000000..4eff4ec7
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/ConnectionPool.java
@@ -0,0 +1,257 @@
+package com.squareup.okhttp;
+
+import com.squareup.okhttp.internal.Platform;
+import com.squareup.okhttp.internal.Util;
+import java.net.SocketException;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Manages reuse of HTTP and SPDY connections for reduced network latency. HTTP
+ * requests that share the same {@link com.squareup.okhttp.Address} may share a
+ * {@link com.squareup.okhttp.Connection}. This class implements the policy of
+ * which connections to keep open for future use.
+ *
+ * The {@link #getDefault() system-wide default} uses system properties for
+ * tuning parameters:
+ *
+ * - {@code http.keepAlive} true if HTTP and SPDY connections should be
+ * pooled at all. Default is true.
+ *
- {@code http.maxConnections} maximum number of idle connections to
+ * each to keep in the pool. Default is 5.
+ *
- {@code http.keepAliveDuration} Time in milliseconds to keep the
+ * connection alive in the pool before closing it. Default is 5 minutes.
+ * This property isn't used by {@code HttpURLConnection}.
+ *
+ *
+ * The default instance doesn't adjust its configuration as system
+ * properties are changed. This assumes that the applications that set these
+ * parameters do so before making HTTP connections, and that this class is
+ * initialized lazily.
+ */
+public class ConnectionPool {
+ private static final int MAX_CONNECTIONS_TO_CLEANUP = 2;
+ private static final long DEFAULT_KEEP_ALIVE_DURATION_MS = 5 * 60 * 1000; // 5 min
+
+ private static final ConnectionPool systemDefault;
+
+ static {
+ String keepAlive = System.getProperty("http.keepAlive");
+ String keepAliveDuration = System.getProperty("http.keepAliveDuration");
+ String maxIdleConnections = System.getProperty("http.maxConnections");
+ long keepAliveDurationMs = keepAliveDuration != null ? Long.parseLong(keepAliveDuration)
+ : DEFAULT_KEEP_ALIVE_DURATION_MS;
+ if (keepAlive != null && !Boolean.parseBoolean(keepAlive)) {
+ systemDefault = new ConnectionPool(0, keepAliveDurationMs);
+ } else if (maxIdleConnections != null) {
+ systemDefault = new ConnectionPool(Integer.parseInt(maxIdleConnections), keepAliveDurationMs);
+ } else {
+ systemDefault = new ConnectionPool(5, keepAliveDurationMs);
+ }
+ }
+
+ /** The maximum number of idle connections for each address. */
+ private final int maxIdleConnections;
+ private final long keepAliveDurationNs;
+
+ private final LinkedList connections = new LinkedList();
+
+ /** We use a single background thread to cleanup expired connections. */
+ private final ExecutorService executorService =
+ new ThreadPoolExecutor(0, 1, 60L, TimeUnit.SECONDS, new LinkedBlockingQueue());
+ private final Callable connectionsCleanupCallable = new Callable() {
+ @Override public Void call() throws Exception {
+ List expiredConnections = new ArrayList(MAX_CONNECTIONS_TO_CLEANUP);
+ int idleConnectionCount = 0;
+ synchronized (ConnectionPool.this) {
+ for (ListIterator i = connections.listIterator(connections.size());
+ i.hasPrevious(); ) {
+ Connection connection = i.previous();
+ if (!connection.isAlive() || connection.isExpired(keepAliveDurationNs)) {
+ i.remove();
+ expiredConnections.add(connection);
+ if (expiredConnections.size() == MAX_CONNECTIONS_TO_CLEANUP) break;
+ } else if (connection.isIdle()) {
+ idleConnectionCount++;
+ }
+ }
+
+ for (ListIterator i = connections.listIterator(connections.size());
+ i.hasPrevious() && idleConnectionCount > maxIdleConnections; ) {
+ Connection connection = i.previous();
+ if (connection.isIdle()) {
+ expiredConnections.add(connection);
+ i.remove();
+ --idleConnectionCount;
+ }
+ }
+ }
+ for (Connection expiredConnection : expiredConnections) {
+ Util.closeQuietly(expiredConnection);
+ }
+ return null;
+ }
+ };
+
+ public ConnectionPool(int maxIdleConnections, long keepAliveDurationMs) {
+ this.maxIdleConnections = maxIdleConnections;
+ this.keepAliveDurationNs = keepAliveDurationMs * 1000 * 1000;
+ }
+
+ /**
+ * Returns a snapshot of the connections in this pool, ordered from newest to
+ * oldest. Waits for the cleanup callable to run if it is currently scheduled.
+ */
+ List getConnections() {
+ waitForCleanupCallableToRun();
+ synchronized (this) {
+ return new ArrayList(connections);
+ }
+ }
+
+ /**
+ * Blocks until the executor service has processed all currently enqueued
+ * jobs.
+ */
+ private void waitForCleanupCallableToRun() {
+ try {
+ executorService.submit(new Runnable() {
+ @Override public void run() {
+ }
+ }).get();
+ } catch (Exception e) {
+ throw new AssertionError();
+ }
+ }
+
+ public static ConnectionPool getDefault() {
+ return systemDefault;
+ }
+
+ /** Returns total number of connections in the pool. */
+ public synchronized int getConnectionCount() {
+ return connections.size();
+ }
+
+ /** Returns total number of spdy connections in the pool. */
+ public synchronized int getSpdyConnectionCount() {
+ int total = 0;
+ for (Connection connection : connections) {
+ if (connection.isSpdy()) total++;
+ }
+ return total;
+ }
+
+ /** Returns total number of http connections in the pool. */
+ public synchronized int getHttpConnectionCount() {
+ int total = 0;
+ for (Connection connection : connections) {
+ if (!connection.isSpdy()) total++;
+ }
+ return total;
+ }
+
+ /** Returns a recycled connection to {@code address}, or null if no such connection exists. */
+ public synchronized Connection get(Address address) {
+ Connection foundConnection = null;
+ for (ListIterator i = connections.listIterator(connections.size());
+ i.hasPrevious(); ) {
+ Connection connection = i.previous();
+ if (!connection.getAddress().equals(address)
+ || !connection.isAlive()
+ || System.nanoTime() - connection.getIdleStartTimeNs() >= keepAliveDurationNs) {
+ continue;
+ }
+ i.remove();
+ if (!connection.isSpdy()) {
+ try {
+ Platform.get().tagSocket(connection.getSocket());
+ } catch (SocketException e) {
+ Util.closeQuietly(connection);
+ // When unable to tag, skip recycling and close
+ Platform.get().logW("Unable to tagSocket(): " + e);
+ continue;
+ }
+ }
+ foundConnection = connection;
+ break;
+ }
+
+ if (foundConnection != null && foundConnection.isSpdy()) {
+ connections.addFirst(foundConnection); // Add it back after iteration.
+ }
+
+ executorService.submit(connectionsCleanupCallable);
+ return foundConnection;
+ }
+
+ /**
+ * Gives {@code connection} to the pool. The pool may store the connection,
+ * or close it, as its policy describes.
+ *
+ * It is an error to use {@code connection} after calling this method.
+ */
+ public void recycle(Connection connection) {
+ executorService.submit(connectionsCleanupCallable);
+
+ if (connection.isSpdy()) {
+ return;
+ }
+
+ if (!connection.isAlive()) {
+ Util.closeQuietly(connection);
+ return;
+ }
+
+ try {
+ Platform.get().untagSocket(connection.getSocket());
+ } catch (SocketException e) {
+ // When unable to remove tagging, skip recycling and close.
+ Platform.get().logW("Unable to untagSocket(): " + e);
+ Util.closeQuietly(connection);
+ return;
+ }
+
+ synchronized (this) {
+ connections.addFirst(connection);
+ connection.resetIdleStartTime();
+ }
+ }
+
+ /**
+ * Shares the SPDY connection with the pool. Callers to this method may
+ * continue to use {@code connection}.
+ */
+ public void maybeShare(Connection connection) {
+ executorService.submit(connectionsCleanupCallable);
+ if (!connection.isSpdy()) {
+ // Only SPDY connections are sharable.
+ return;
+ }
+ if (connection.isAlive()) {
+ synchronized (this) {
+ connections.addFirst(connection);
+ }
+ }
+ }
+
+ /** Close and remove all connections in the pool. */
+ public void evictAll() {
+ List connections;
+ synchronized (this) {
+ connections = new ArrayList(this.connections);
+ this.connections.clear();
+ }
+
+ for (Connection connection : connections) {
+ Util.closeQuietly(connection);
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/OkHttpClient.java b/framework/src/com/squareup/okhttp/OkHttpClient.java
new file mode 100644
index 00000000..d21cdb71
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/OkHttpClient.java
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2012 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp;
+
+import com.squareup.okhttp.internal.http.HttpURLConnectionImpl;
+import com.squareup.okhttp.internal.http.HttpsURLConnectionImpl;
+import java.net.CookieHandler;
+import java.net.HttpURLConnection;
+import java.net.Proxy;
+import java.net.ProxySelector;
+import java.net.ResponseCache;
+import java.net.URL;
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.SSLSocketFactory;
+
+/** Configures and creates HTTP connections. */
+public final class OkHttpClient {
+ private Proxy proxy;
+ private ProxySelector proxySelector;
+ private CookieHandler cookieHandler;
+ private ResponseCache responseCache;
+ private SSLSocketFactory sslSocketFactory;
+ private HostnameVerifier hostnameVerifier;
+ private ConnectionPool connectionPool;
+ private boolean followProtocolRedirects = true;
+
+ /**
+ * Sets the HTTP proxy that will be used by connections created by this
+ * client. This takes precedence over {@link #setProxySelector}, which is
+ * only honored when this proxy is null (which it is by default). To disable
+ * proxy use completely, call {@code setProxy(Proxy.NO_PROXY)}.
+ */
+ public OkHttpClient setProxy(Proxy proxy) {
+ this.proxy = proxy;
+ return this;
+ }
+
+ public Proxy getProxy() {
+ return proxy;
+ }
+
+ /**
+ * Sets the proxy selection policy to be used if no {@link #setProxy proxy}
+ * is specified explicitly. The proxy selector may return multiple proxies;
+ * in that case they will be tried in sequence until a successful connection
+ * is established.
+ *
+ * If unset, the {@link ProxySelector#getDefault() system-wide default}
+ * proxy selector will be used.
+ */
+ public OkHttpClient setProxySelector(ProxySelector proxySelector) {
+ this.proxySelector = proxySelector;
+ return this;
+ }
+
+ public ProxySelector getProxySelector() {
+ return proxySelector;
+ }
+
+ /**
+ * Sets the cookie handler to be used to read outgoing cookies and write
+ * incoming cookies.
+ *
+ *
If unset, the {@link CookieHandler#getDefault() system-wide default}
+ * cookie handler will be used.
+ */
+ public OkHttpClient setCookieHandler(CookieHandler cookieHandler) {
+ this.cookieHandler = cookieHandler;
+ return this;
+ }
+
+ public CookieHandler getCookieHandler() {
+ return cookieHandler;
+ }
+
+ /**
+ * Sets the response cache to be used to read and write cached responses.
+ *
+ *
If unset, the {@link ResponseCache#getDefault() system-wide default}
+ * response cache will be used.
+ */
+ public OkHttpClient setResponseCache(ResponseCache responseCache) {
+ this.responseCache = responseCache;
+ return this;
+ }
+
+ public ResponseCache getResponseCache() {
+ return responseCache;
+ }
+
+ /**
+ * Sets the socket factory used to secure HTTPS connections.
+ *
+ *
If unset, the {@link HttpsURLConnection#getDefaultSSLSocketFactory()
+ * system-wide default} SSL socket factory will be used.
+ */
+ public OkHttpClient setSSLSocketFactory(SSLSocketFactory sslSocketFactory) {
+ this.sslSocketFactory = sslSocketFactory;
+ return this;
+ }
+
+ public SSLSocketFactory getSslSocketFactory() {
+ return sslSocketFactory;
+ }
+
+ /**
+ * Sets the verifier used to confirm that response certificates apply to
+ * requested hostnames for HTTPS connections.
+ *
+ *
If unset, the {@link HttpsURLConnection#getDefaultHostnameVerifier()
+ * system-wide default} hostname verifier will be used.
+ */
+ public OkHttpClient setHostnameVerifier(HostnameVerifier hostnameVerifier) {
+ this.hostnameVerifier = hostnameVerifier;
+ return this;
+ }
+
+ public HostnameVerifier getHostnameVerifier() {
+ return hostnameVerifier;
+ }
+
+ /**
+ * Sets the connection pool used to recycle HTTP and HTTPS connections.
+ *
+ *
If unset, the {@link ConnectionPool#getDefault() system-wide
+ * default} connection pool will be used.
+ */
+ public OkHttpClient setConnectionPool(ConnectionPool connectionPool) {
+ this.connectionPool = connectionPool;
+ return this;
+ }
+
+ public ConnectionPool getConnectionPool() {
+ return connectionPool;
+ }
+
+ /**
+ * Configure this client to follow redirects from HTTPS to HTTP and from HTTP
+ * to HTTPS.
+ *
+ *
If unset, protocol redirects will be followed. This is different than
+ * the built-in {@code HttpURLConnection}'s default.
+ */
+ public OkHttpClient setFollowProtocolRedirects(boolean followProtocolRedirects) {
+ this.followProtocolRedirects = followProtocolRedirects;
+ return this;
+ }
+
+ public boolean getFollowProtocolRedirects() {
+ return followProtocolRedirects;
+ }
+
+ public HttpURLConnection open(URL url) {
+ String protocol = url.getProtocol();
+ if (protocol.equals("http")) {
+ return new HttpURLConnectionImpl(url, copyWithDefaults());
+ } else if (protocol.equals("https")) {
+ return new HttpsURLConnectionImpl(url, copyWithDefaults());
+ } else {
+ throw new IllegalArgumentException("Unexpected protocol: " + protocol);
+ }
+ }
+
+ /**
+ * Returns a copy of this OkHttpClient that uses the system-wide default for
+ * each field that hasn't been explicitly configured.
+ */
+ private OkHttpClient copyWithDefaults() {
+ OkHttpClient result = new OkHttpClient();
+ result.proxy = proxy;
+ result.proxySelector = proxySelector != null ? proxySelector : ProxySelector.getDefault();
+ result.cookieHandler = cookieHandler != null ? cookieHandler : CookieHandler.getDefault();
+ result.responseCache = responseCache != null ? responseCache : ResponseCache.getDefault();
+ result.sslSocketFactory = sslSocketFactory != null
+ ? sslSocketFactory
+ : HttpsURLConnection.getDefaultSSLSocketFactory();
+ result.hostnameVerifier = hostnameVerifier != null
+ ? hostnameVerifier
+ : HttpsURLConnection.getDefaultHostnameVerifier();
+ result.connectionPool = connectionPool != null ? connectionPool : ConnectionPool.getDefault();
+ result.followProtocolRedirects = followProtocolRedirects;
+ return result;
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/OkResponseCache.java b/framework/src/com/squareup/okhttp/OkResponseCache.java
new file mode 100644
index 00000000..b7e3801d
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/OkResponseCache.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp;
+
+import java.io.IOException;
+import java.net.CacheResponse;
+import java.net.HttpURLConnection;
+
+/**
+ * A response cache that supports statistics tracking and updating stored
+ * responses. Implementations of {@link java.net.ResponseCache} should implement
+ * this interface to receive additional support from the HTTP engine.
+ */
+public interface OkResponseCache {
+
+ /** Track an HTTP response being satisfied by {@code source}. */
+ void trackResponse(ResponseSource source);
+
+ /** Track an conditional GET that was satisfied by this cache. */
+ void trackConditionalCacheHit();
+
+ /** Updates stored HTTP headers using a hit on a conditional GET. */
+ void update(CacheResponse conditionalCacheHit, HttpURLConnection httpConnection)
+ throws IOException;
+}
diff --git a/framework/src/com/squareup/okhttp/ResponseSource.java b/framework/src/com/squareup/okhttp/ResponseSource.java
new file mode 100644
index 00000000..4eca172d
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/ResponseSource.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp;
+
+/** The source of an HTTP response. */
+public enum ResponseSource {
+
+ /** The response was returned from the local cache. */
+ CACHE,
+
+ /**
+ * The response is available in the cache but must be validated with the
+ * network. The cache result will be used if it is still valid; otherwise
+ * the network's response will be used.
+ */
+ CONDITIONAL_CACHE,
+
+ /** The response was returned from the network. */
+ NETWORK;
+
+ public boolean requiresConnection() {
+ return this == CONDITIONAL_CACHE || this == NETWORK;
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/TunnelRequest.java b/framework/src/com/squareup/okhttp/TunnelRequest.java
new file mode 100644
index 00000000..5260b87c
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/TunnelRequest.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp;
+
+import com.squareup.okhttp.internal.http.RawHeaders;
+
+import static com.squareup.okhttp.internal.Util.getDefaultPort;
+
+/**
+ * Routing and authentication information sent to an HTTP proxy to create a
+ * HTTPS to an origin server. Everything in the tunnel request is sent
+ * unencrypted to the proxy server.
+ *
+ *
See RFC 2817, Section
+ * 5.2.
+ */
+public final class TunnelRequest {
+ final String host;
+ final int port;
+ final String userAgent;
+ final String proxyAuthorization;
+
+ /**
+ * @param host the origin server's hostname. Not null.
+ * @param port the origin server's port, like 80 or 443.
+ * @param userAgent the client's user-agent. Not null.
+ * @param proxyAuthorization proxy authorization, or null if the proxy is
+ * used without an authorization header.
+ */
+ public TunnelRequest(String host, int port, String userAgent, String proxyAuthorization) {
+ if (host == null) throw new NullPointerException("host == null");
+ if (userAgent == null) throw new NullPointerException("userAgent == null");
+ this.host = host;
+ this.port = port;
+ this.userAgent = userAgent;
+ this.proxyAuthorization = proxyAuthorization;
+ }
+
+ /**
+ * If we're creating a TLS tunnel, send only the minimum set of headers.
+ * This avoids sending potentially sensitive data like HTTP cookies to
+ * the proxy unencrypted.
+ */
+ RawHeaders getRequestHeaders() {
+ RawHeaders result = new RawHeaders();
+ result.setRequestLine("CONNECT " + host + ":" + port + " HTTP/1.1");
+
+ // Always set Host and User-Agent.
+ result.set("Host", port == getDefaultPort("https") ? host : (host + ":" + port));
+ result.set("User-Agent", userAgent);
+
+ // Copy over the Proxy-Authorization header if it exists.
+ if (proxyAuthorization != null) {
+ result.set("Proxy-Authorization", proxyAuthorization);
+ }
+
+ // Always set the Proxy-Connection to Keep-Alive for the benefit of
+ // HTTP/1.0 proxies like Squid.
+ result.set("Proxy-Connection", "Keep-Alive");
+ return result;
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/Base64.java b/framework/src/com/squareup/okhttp/internal/Base64.java
new file mode 100644
index 00000000..79cd0206
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/Base64.java
@@ -0,0 +1,164 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @author Alexander Y. Kleymenov
+ */
+
+package com.squareup.okhttp.internal;
+
+import java.io.UnsupportedEncodingException;
+
+import static com.squareup.okhttp.internal.Util.EMPTY_BYTE_ARRAY;
+
+/**
+ * Base64 encoder/decoder.
+ * In violation of the RFC, this encoder doesn't wrap lines at 76 columns.
+ */
+public final class Base64 {
+ private Base64() {
+ }
+
+ public static byte[] decode(byte[] in) {
+ return decode(in, in.length);
+ }
+
+ public static byte[] decode(byte[] in, int len) {
+ // approximate output length
+ int length = len / 4 * 3;
+ // return an empty array on empty or short input without padding
+ if (length == 0) {
+ return EMPTY_BYTE_ARRAY;
+ }
+ // temporary array
+ byte[] out = new byte[length];
+ // number of padding characters ('=')
+ int pad = 0;
+ byte chr;
+ // compute the number of the padding characters
+ // and adjust the length of the input
+ for (; ; len--) {
+ chr = in[len - 1];
+ // skip the neutral characters
+ if ((chr == '\n') || (chr == '\r') || (chr == ' ') || (chr == '\t')) {
+ continue;
+ }
+ if (chr == '=') {
+ pad++;
+ } else {
+ break;
+ }
+ }
+ // index in the output array
+ int outIndex = 0;
+ // index in the input array
+ int inIndex = 0;
+ // holds the value of the input character
+ int bits = 0;
+ // holds the value of the input quantum
+ int quantum = 0;
+ for (int i = 0; i < len; i++) {
+ chr = in[i];
+ // skip the neutral characters
+ if ((chr == '\n') || (chr == '\r') || (chr == ' ') || (chr == '\t')) {
+ continue;
+ }
+ if ((chr >= 'A') && (chr <= 'Z')) {
+ // char ASCII value
+ // A 65 0
+ // Z 90 25 (ASCII - 65)
+ bits = chr - 65;
+ } else if ((chr >= 'a') && (chr <= 'z')) {
+ // char ASCII value
+ // a 97 26
+ // z 122 51 (ASCII - 71)
+ bits = chr - 71;
+ } else if ((chr >= '0') && (chr <= '9')) {
+ // char ASCII value
+ // 0 48 52
+ // 9 57 61 (ASCII + 4)
+ bits = chr + 4;
+ } else if (chr == '+') {
+ bits = 62;
+ } else if (chr == '/') {
+ bits = 63;
+ } else {
+ return null;
+ }
+ // append the value to the quantum
+ quantum = (quantum << 6) | (byte) bits;
+ if (inIndex % 4 == 3) {
+ // 4 characters were read, so make the output:
+ out[outIndex++] = (byte) (quantum >> 16);
+ out[outIndex++] = (byte) (quantum >> 8);
+ out[outIndex++] = (byte) quantum;
+ }
+ inIndex++;
+ }
+ if (pad > 0) {
+ // adjust the quantum value according to the padding
+ quantum = quantum << (6 * pad);
+ // make output
+ out[outIndex++] = (byte) (quantum >> 16);
+ if (pad == 1) {
+ out[outIndex++] = (byte) (quantum >> 8);
+ }
+ }
+ // create the resulting array
+ byte[] result = new byte[outIndex];
+ System.arraycopy(out, 0, result, 0, outIndex);
+ return result;
+ }
+
+ private static final byte[] MAP = new byte[] {
+ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
+ 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
+ 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4',
+ '5', '6', '7', '8', '9', '+', '/'
+ };
+
+ public static String encode(byte[] in) {
+ int length = (in.length + 2) * 4 / 3;
+ byte[] out = new byte[length];
+ int index = 0, end = in.length - in.length % 3;
+ for (int i = 0; i < end; i += 3) {
+ out[index++] = MAP[(in[i] & 0xff) >> 2];
+ out[index++] = MAP[((in[i] & 0x03) << 4) | ((in[i + 1] & 0xff) >> 4)];
+ out[index++] = MAP[((in[i + 1] & 0x0f) << 2) | ((in[i + 2] & 0xff) >> 6)];
+ out[index++] = MAP[(in[i + 2] & 0x3f)];
+ }
+ switch (in.length % 3) {
+ case 1:
+ out[index++] = MAP[(in[end] & 0xff) >> 2];
+ out[index++] = MAP[(in[end] & 0x03) << 4];
+ out[index++] = '=';
+ out[index++] = '=';
+ break;
+ case 2:
+ out[index++] = MAP[(in[end] & 0xff) >> 2];
+ out[index++] = MAP[((in[end] & 0x03) << 4) | ((in[end + 1] & 0xff) >> 4)];
+ out[index++] = MAP[((in[end + 1] & 0x0f) << 2)];
+ out[index++] = '=';
+ break;
+ }
+ try {
+ return new String(out, 0, index, "US-ASCII");
+ } catch (UnsupportedEncodingException e) {
+ throw new AssertionError(e);
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/DiskLruCache.java b/framework/src/com/squareup/okhttp/internal/DiskLruCache.java
new file mode 100644
index 00000000..00fe2f18
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/DiskLruCache.java
@@ -0,0 +1,826 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal;
+
+import java.io.BufferedWriter;
+import java.io.Closeable;
+import java.io.EOFException;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileWriter;
+import java.io.FilterOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+import static com.squareup.okhttp.internal.Util.UTF_8;
+
+/**
+ * A cache that uses a bounded amount of space on a filesystem. Each cache
+ * entry has a string key and a fixed number of values. Values are byte
+ * sequences, accessible as streams or files. Each value must be between {@code
+ * 0} and {@code Integer.MAX_VALUE} bytes in length.
+ *
+ *
The cache stores its data in a directory on the filesystem. This
+ * directory must be exclusive to the cache; the cache may delete or overwrite
+ * files from its directory. It is an error for multiple processes to use the
+ * same cache directory at the same time.
+ *
+ *
This cache limits the number of bytes that it will store on the
+ * filesystem. When the number of stored bytes exceeds the limit, the cache will
+ * remove entries in the background until the limit is satisfied. The limit is
+ * not strict: the cache may temporarily exceed it while waiting for files to be
+ * deleted. The limit does not include filesystem overhead or the cache
+ * journal so space-sensitive applications should set a conservative limit.
+ *
+ *
Clients call {@link #edit} to create or update the values of an entry. An
+ * entry may have only one editor at one time; if a value is not available to be
+ * edited then {@link #edit} will return null.
+ *
+ * - When an entry is being created it is necessary to
+ * supply a full set of values; the empty value should be used as a
+ * placeholder if necessary.
+ *
- When an entry is being edited, it is not necessary
+ * to supply data for every value; values default to their previous
+ * value.
+ *
+ * Every {@link #edit} call must be matched by a call to {@link Editor#commit}
+ * or {@link Editor#abort}. Committing is atomic: a read observes the full set
+ * of values as they were before or after the commit, but never a mix of values.
+ *
+ * Clients call {@link #get} to read a snapshot of an entry. The read will
+ * observe the value at the time that {@link #get} was called. Updates and
+ * removals after the call do not impact ongoing reads.
+ *
+ *
This class is tolerant of some I/O errors. If files are missing from the
+ * filesystem, the corresponding entries will be dropped from the cache. If
+ * an error occurs while writing a cache value, the edit will fail silently.
+ * Callers should handle other problems by catching {@code IOException} and
+ * responding appropriately.
+ */
+public final class DiskLruCache implements Closeable {
+ static final String JOURNAL_FILE = "journal";
+ static final String JOURNAL_FILE_TMP = "journal.tmp";
+ static final String MAGIC = "libcore.io.DiskLruCache";
+ static final String VERSION_1 = "1";
+ static final long ANY_SEQUENCE_NUMBER = -1;
+ private static final String CLEAN = "CLEAN";
+ private static final String DIRTY = "DIRTY";
+ private static final String REMOVE = "REMOVE";
+ private static final String READ = "READ";
+
+ // This cache uses a journal file named "journal". A typical journal file
+ // looks like this:
+ // libcore.io.DiskLruCache
+ // 1
+ // 100
+ // 2
+ //
+ // CLEAN 3400330d1dfc7f3f7f4b8d4d803dfcf6 832 21054
+ // DIRTY 335c4c6028171cfddfbaae1a9c313c52
+ // CLEAN 335c4c6028171cfddfbaae1a9c313c52 3934 2342
+ // REMOVE 335c4c6028171cfddfbaae1a9c313c52
+ // DIRTY 1ab96a171faeeee38496d8b330771a7a
+ // CLEAN 1ab96a171faeeee38496d8b330771a7a 1600 234
+ // READ 335c4c6028171cfddfbaae1a9c313c52
+ // READ 3400330d1dfc7f3f7f4b8d4d803dfcf6
+ //
+ // The first five lines of the journal form its header. They are the
+ // constant string "libcore.io.DiskLruCache", the disk cache's version,
+ // the application's version, the value count, and a blank line.
+ //
+ // Each of the subsequent lines in the file is a record of the state of a
+ // cache entry. Each line contains space-separated values: a state, a key,
+ // and optional state-specific values.
+ // o DIRTY lines track that an entry is actively being created or updated.
+ // Every successful DIRTY action should be followed by a CLEAN or REMOVE
+ // action. DIRTY lines without a matching CLEAN or REMOVE indicate that
+ // temporary files may need to be deleted.
+ // o CLEAN lines track a cache entry that has been successfully published
+ // and may be read. A publish line is followed by the lengths of each of
+ // its values.
+ // o READ lines track accesses for LRU.
+ // o REMOVE lines track entries that have been deleted.
+ //
+ // The journal file is appended to as cache operations occur. The journal may
+ // occasionally be compacted by dropping redundant lines. A temporary file named
+ // "journal.tmp" will be used during compaction; that file should be deleted if
+ // it exists when the cache is opened.
+
+ private final File directory;
+ private final File journalFile;
+ private final File journalFileTmp;
+ private final int appVersion;
+ private final long maxSize;
+ private final int valueCount;
+ private long size = 0;
+ private Writer journalWriter;
+ private final LinkedHashMap lruEntries =
+ new LinkedHashMap(0, 0.75f, true);
+ private int redundantOpCount;
+
+ /**
+ * To differentiate between old and current snapshots, each entry is given
+ * a sequence number each time an edit is committed. A snapshot is stale if
+ * its sequence number is not equal to its entry's sequence number.
+ */
+ private long nextSequenceNumber = 0;
+
+ /** This cache uses a single background thread to evict entries. */
+ private final ExecutorService executorService =
+ new ThreadPoolExecutor(0, 1, 60L, TimeUnit.SECONDS, new LinkedBlockingQueue());
+ private final Callable cleanupCallable = new Callable() {
+ @Override public Void call() throws Exception {
+ synchronized (DiskLruCache.this) {
+ if (journalWriter == null) {
+ return null; // closed
+ }
+ trimToSize();
+ if (journalRebuildRequired()) {
+ rebuildJournal();
+ redundantOpCount = 0;
+ }
+ }
+ return null;
+ }
+ };
+
+ private DiskLruCache(File directory, int appVersion, int valueCount, long maxSize) {
+ this.directory = directory;
+ this.appVersion = appVersion;
+ this.journalFile = new File(directory, JOURNAL_FILE);
+ this.journalFileTmp = new File(directory, JOURNAL_FILE_TMP);
+ this.valueCount = valueCount;
+ this.maxSize = maxSize;
+ }
+
+ /**
+ * Opens the cache in {@code directory}, creating a cache if none exists
+ * there.
+ *
+ * @param directory a writable directory
+ * @param valueCount the number of values per cache entry. Must be positive.
+ * @param maxSize the maximum number of bytes this cache should use to store
+ * @throws IOException if reading or writing the cache directory fails
+ */
+ public static DiskLruCache open(File directory, int appVersion, int valueCount, long maxSize)
+ throws IOException {
+ if (maxSize <= 0) {
+ throw new IllegalArgumentException("maxSize <= 0");
+ }
+ if (valueCount <= 0) {
+ throw new IllegalArgumentException("valueCount <= 0");
+ }
+
+ // prefer to pick up where we left off
+ DiskLruCache cache = new DiskLruCache(directory, appVersion, valueCount, maxSize);
+ if (cache.journalFile.exists()) {
+ try {
+ cache.readJournal();
+ cache.processJournal();
+ cache.journalWriter = new BufferedWriter(new FileWriter(cache.journalFile, true));
+ return cache;
+ } catch (IOException journalIsCorrupt) {
+ Platform.get()
+ .logW("DiskLruCache "
+ + directory
+ + " is corrupt: "
+ + journalIsCorrupt.getMessage()
+ + ", removing");
+ cache.delete();
+ }
+ }
+
+ // create a new empty cache
+ directory.mkdirs();
+ cache = new DiskLruCache(directory, appVersion, valueCount, maxSize);
+ cache.rebuildJournal();
+ return cache;
+ }
+
+ private void readJournal() throws IOException {
+ StrictLineReader reader = new StrictLineReader(new FileInputStream(journalFile), Util.US_ASCII);
+ try {
+ String magic = reader.readLine();
+ String version = reader.readLine();
+ String appVersionString = reader.readLine();
+ String valueCountString = reader.readLine();
+ String blank = reader.readLine();
+ if (!MAGIC.equals(magic) || !VERSION_1.equals(version) || !Integer.toString(appVersion)
+ .equals(appVersionString) || !Integer.toString(valueCount).equals(valueCountString) || !""
+ .equals(blank)) {
+ throw new IOException("unexpected journal header: ["
+ + magic
+ + ", "
+ + version
+ + ", "
+ + valueCountString
+ + ", "
+ + blank
+ + "]");
+ }
+
+ while (true) {
+ try {
+ readJournalLine(reader.readLine());
+ } catch (EOFException endOfJournal) {
+ break;
+ }
+ }
+ } finally {
+ Util.closeQuietly(reader);
+ }
+ }
+
+ private void readJournalLine(String line) throws IOException {
+ String[] parts = line.split(" ");
+ if (parts.length < 2) {
+ throw new IOException("unexpected journal line: " + line);
+ }
+
+ String key = parts[1];
+ if (parts[0].equals(REMOVE) && parts.length == 2) {
+ lruEntries.remove(key);
+ return;
+ }
+
+ Entry entry = lruEntries.get(key);
+ if (entry == null) {
+ entry = new Entry(key);
+ lruEntries.put(key, entry);
+ }
+
+ if (parts[0].equals(CLEAN) && parts.length == 2 + valueCount) {
+ entry.readable = true;
+ entry.currentEditor = null;
+ entry.setLengths(Arrays.copyOfRange(parts, 2, parts.length));
+ } else if (parts[0].equals(DIRTY) && parts.length == 2) {
+ entry.currentEditor = new Editor(entry);
+ } else if (parts[0].equals(READ) && parts.length == 2) {
+ // this work was already done by calling lruEntries.get()
+ } else {
+ throw new IOException("unexpected journal line: " + line);
+ }
+ }
+
+ /**
+ * Computes the initial size and collects garbage as a part of opening the
+ * cache. Dirty entries are assumed to be inconsistent and will be deleted.
+ */
+ private void processJournal() throws IOException {
+ deleteIfExists(journalFileTmp);
+ for (Iterator i = lruEntries.values().iterator(); i.hasNext(); ) {
+ Entry entry = i.next();
+ if (entry.currentEditor == null) {
+ for (int t = 0; t < valueCount; t++) {
+ size += entry.lengths[t];
+ }
+ } else {
+ entry.currentEditor = null;
+ for (int t = 0; t < valueCount; t++) {
+ deleteIfExists(entry.getCleanFile(t));
+ deleteIfExists(entry.getDirtyFile(t));
+ }
+ i.remove();
+ }
+ }
+ }
+
+ /**
+ * Creates a new journal that omits redundant information. This replaces the
+ * current journal if it exists.
+ */
+ private synchronized void rebuildJournal() throws IOException {
+ if (journalWriter != null) {
+ journalWriter.close();
+ }
+
+ Writer writer = new BufferedWriter(new FileWriter(journalFileTmp));
+ writer.write(MAGIC);
+ writer.write("\n");
+ writer.write(VERSION_1);
+ writer.write("\n");
+ writer.write(Integer.toString(appVersion));
+ writer.write("\n");
+ writer.write(Integer.toString(valueCount));
+ writer.write("\n");
+ writer.write("\n");
+
+ for (Entry entry : lruEntries.values()) {
+ if (entry.currentEditor != null) {
+ writer.write(DIRTY + ' ' + entry.key + '\n');
+ } else {
+ writer.write(CLEAN + ' ' + entry.key + entry.getLengths() + '\n');
+ }
+ }
+
+ writer.close();
+ journalFileTmp.renameTo(journalFile);
+ journalWriter = new BufferedWriter(new FileWriter(journalFile, true));
+ }
+
+ private static void deleteIfExists(File file) throws IOException {
+ file.delete();
+ }
+
+ /**
+ * Returns a snapshot of the entry named {@code key}, or null if it doesn't
+ * exist is not currently readable. If a value is returned, it is moved to
+ * the head of the LRU queue.
+ */
+ public synchronized Snapshot get(String key) throws IOException {
+ checkNotClosed();
+ validateKey(key);
+ Entry entry = lruEntries.get(key);
+ if (entry == null) {
+ return null;
+ }
+
+ if (!entry.readable) {
+ return null;
+ }
+
+ // Open all streams eagerly to guarantee that we see a single published
+ // snapshot. If we opened streams lazily then the streams could come
+ // from different edits.
+ InputStream[] ins = new InputStream[valueCount];
+ try {
+ for (int i = 0; i < valueCount; i++) {
+ ins[i] = new FileInputStream(entry.getCleanFile(i));
+ }
+ } catch (FileNotFoundException e) {
+ // a file must have been deleted manually!
+ return null;
+ }
+
+ redundantOpCount++;
+ journalWriter.append(READ + ' ' + key + '\n');
+ if (journalRebuildRequired()) {
+ executorService.submit(cleanupCallable);
+ }
+
+ return new Snapshot(key, entry.sequenceNumber, ins);
+ }
+
+ /**
+ * Returns an editor for the entry named {@code key}, or null if another
+ * edit is in progress.
+ */
+ public Editor edit(String key) throws IOException {
+ return edit(key, ANY_SEQUENCE_NUMBER);
+ }
+
+ private synchronized Editor edit(String key, long expectedSequenceNumber) throws IOException {
+ checkNotClosed();
+ validateKey(key);
+ Entry entry = lruEntries.get(key);
+ if (expectedSequenceNumber != ANY_SEQUENCE_NUMBER && (entry == null
+ || entry.sequenceNumber != expectedSequenceNumber)) {
+ return null; // snapshot is stale
+ }
+ if (entry == null) {
+ entry = new Entry(key);
+ lruEntries.put(key, entry);
+ } else if (entry.currentEditor != null) {
+ return null; // another edit is in progress
+ }
+
+ Editor editor = new Editor(entry);
+ entry.currentEditor = editor;
+
+ // flush the journal before creating files to prevent file leaks
+ journalWriter.write(DIRTY + ' ' + key + '\n');
+ journalWriter.flush();
+ return editor;
+ }
+
+ /** Returns the directory where this cache stores its data. */
+ public File getDirectory() {
+ return directory;
+ }
+
+ /**
+ * Returns the maximum number of bytes that this cache should use to store
+ * its data.
+ */
+ public long maxSize() {
+ return maxSize;
+ }
+
+ /**
+ * Returns the number of bytes currently being used to store the values in
+ * this cache. This may be greater than the max size if a background
+ * deletion is pending.
+ */
+ public synchronized long size() {
+ return size;
+ }
+
+ private synchronized void completeEdit(Editor editor, boolean success) throws IOException {
+ Entry entry = editor.entry;
+ if (entry.currentEditor != editor) {
+ throw new IllegalStateException();
+ }
+
+ // if this edit is creating the entry for the first time, every index must have a value
+ if (success && !entry.readable) {
+ for (int i = 0; i < valueCount; i++) {
+ if (!editor.written[i]) {
+ editor.abort();
+ throw new IllegalStateException("Newly created entry didn't create value for index " + i);
+ }
+ if (!entry.getDirtyFile(i).exists()) {
+ editor.abort();
+ Platform.get().logW("DiskLruCache: Newly created entry doesn't have file for index " + i);
+ return;
+ }
+ }
+ }
+
+ for (int i = 0; i < valueCount; i++) {
+ File dirty = entry.getDirtyFile(i);
+ if (success) {
+ if (dirty.exists()) {
+ File clean = entry.getCleanFile(i);
+ dirty.renameTo(clean);
+ long oldLength = entry.lengths[i];
+ long newLength = clean.length();
+ entry.lengths[i] = newLength;
+ size = size - oldLength + newLength;
+ }
+ } else {
+ deleteIfExists(dirty);
+ }
+ }
+
+ redundantOpCount++;
+ entry.currentEditor = null;
+ if (entry.readable | success) {
+ entry.readable = true;
+ journalWriter.write(CLEAN + ' ' + entry.key + entry.getLengths() + '\n');
+ if (success) {
+ entry.sequenceNumber = nextSequenceNumber++;
+ }
+ } else {
+ lruEntries.remove(entry.key);
+ journalWriter.write(REMOVE + ' ' + entry.key + '\n');
+ }
+
+ if (size > maxSize || journalRebuildRequired()) {
+ executorService.submit(cleanupCallable);
+ }
+ }
+
+ /**
+ * We only rebuild the journal when it will halve the size of the journal
+ * and eliminate at least 2000 ops.
+ */
+ private boolean journalRebuildRequired() {
+ final int redundantOpCompactThreshold = 2000;
+ return redundantOpCount >= redundantOpCompactThreshold && redundantOpCount >= lruEntries.size();
+ }
+
+ /**
+ * Drops the entry for {@code key} if it exists and can be removed. Entries
+ * actively being edited cannot be removed.
+ *
+ * @return true if an entry was removed.
+ */
+ public synchronized boolean remove(String key) throws IOException {
+ checkNotClosed();
+ validateKey(key);
+ Entry entry = lruEntries.get(key);
+ if (entry == null || entry.currentEditor != null) {
+ return false;
+ }
+
+ for (int i = 0; i < valueCount; i++) {
+ File file = entry.getCleanFile(i);
+ if (!file.delete()) {
+ throw new IOException("failed to delete " + file);
+ }
+ size -= entry.lengths[i];
+ entry.lengths[i] = 0;
+ }
+
+ redundantOpCount++;
+ journalWriter.append(REMOVE + ' ' + key + '\n');
+ lruEntries.remove(key);
+
+ if (journalRebuildRequired()) {
+ executorService.submit(cleanupCallable);
+ }
+
+ return true;
+ }
+
+ /** Returns true if this cache has been closed. */
+ public boolean isClosed() {
+ return journalWriter == null;
+ }
+
+ private void checkNotClosed() {
+ if (journalWriter == null) {
+ throw new IllegalStateException("cache is closed");
+ }
+ }
+
+ /** Force buffered operations to the filesystem. */
+ public synchronized void flush() throws IOException {
+ checkNotClosed();
+ trimToSize();
+ journalWriter.flush();
+ }
+
+ /** Closes this cache. Stored values will remain on the filesystem. */
+ public synchronized void close() throws IOException {
+ if (journalWriter == null) {
+ return; // already closed
+ }
+ for (Entry entry : new ArrayList(lruEntries.values())) {
+ if (entry.currentEditor != null) {
+ entry.currentEditor.abort();
+ }
+ }
+ trimToSize();
+ journalWriter.close();
+ journalWriter = null;
+ }
+
+ private void trimToSize() throws IOException {
+ while (size > maxSize) {
+ Map.Entry toEvict = lruEntries.entrySet().iterator().next();
+ remove(toEvict.getKey());
+ }
+ }
+
+ /**
+ * Closes the cache and deletes all of its stored values. This will delete
+ * all files in the cache directory including files that weren't created by
+ * the cache.
+ */
+ public void delete() throws IOException {
+ close();
+ Util.deleteContents(directory);
+ }
+
+ private void validateKey(String key) {
+ if (key.contains(" ") || key.contains("\n") || key.contains("\r")) {
+ throw new IllegalArgumentException(
+ "keys must not contain spaces or newlines: \"" + key + "\"");
+ }
+ }
+
+ private static String inputStreamToString(InputStream in) throws IOException {
+ return Util.readFully(new InputStreamReader(in, UTF_8));
+ }
+
+ /** A snapshot of the values for an entry. */
+ public final class Snapshot implements Closeable {
+ private final String key;
+ private final long sequenceNumber;
+ private final InputStream[] ins;
+
+ private Snapshot(String key, long sequenceNumber, InputStream[] ins) {
+ this.key = key;
+ this.sequenceNumber = sequenceNumber;
+ this.ins = ins;
+ }
+
+ /**
+ * Returns an editor for this snapshot's entry, or null if either the
+ * entry has changed since this snapshot was created or if another edit
+ * is in progress.
+ */
+ public Editor edit() throws IOException {
+ return DiskLruCache.this.edit(key, sequenceNumber);
+ }
+
+ /** Returns the unbuffered stream with the value for {@code index}. */
+ public InputStream getInputStream(int index) {
+ return ins[index];
+ }
+
+ /** Returns the string value for {@code index}. */
+ public String getString(int index) throws IOException {
+ return inputStreamToString(getInputStream(index));
+ }
+
+ @Override public void close() {
+ for (InputStream in : ins) {
+ Util.closeQuietly(in);
+ }
+ }
+ }
+
+ /** Edits the values for an entry. */
+ public final class Editor {
+ private final Entry entry;
+ private final boolean[] written;
+ private boolean hasErrors;
+
+ private Editor(Entry entry) {
+ this.entry = entry;
+ this.written = (entry.readable) ? null : new boolean[valueCount];
+ }
+
+ /**
+ * Returns an unbuffered input stream to read the last committed value,
+ * or null if no value has been committed.
+ */
+ public InputStream newInputStream(int index) throws IOException {
+ synchronized (DiskLruCache.this) {
+ if (entry.currentEditor != this) {
+ throw new IllegalStateException();
+ }
+ if (!entry.readable) {
+ return null;
+ }
+ return new FileInputStream(entry.getCleanFile(index));
+ }
+ }
+
+ /**
+ * Returns the last committed value as a string, or null if no value
+ * has been committed.
+ */
+ public String getString(int index) throws IOException {
+ InputStream in = newInputStream(index);
+ return in != null ? inputStreamToString(in) : null;
+ }
+
+ /**
+ * Returns a new unbuffered output stream to write the value at
+ * {@code index}. If the underlying output stream encounters errors
+ * when writing to the filesystem, this edit will be aborted when
+ * {@link #commit} is called. The returned output stream does not throw
+ * IOExceptions.
+ */
+ public OutputStream newOutputStream(int index) throws IOException {
+ synchronized (DiskLruCache.this) {
+ if (entry.currentEditor != this) {
+ throw new IllegalStateException();
+ }
+ if (!entry.readable) {
+ written[index] = true;
+ }
+ return new FaultHidingOutputStream(new FileOutputStream(entry.getDirtyFile(index)));
+ }
+ }
+
+ /** Sets the value at {@code index} to {@code value}. */
+ public void set(int index, String value) throws IOException {
+ Writer writer = null;
+ try {
+ writer = new OutputStreamWriter(newOutputStream(index), UTF_8);
+ writer.write(value);
+ } finally {
+ Util.closeQuietly(writer);
+ }
+ }
+
+ /**
+ * Commits this edit so it is visible to readers. This releases the
+ * edit lock so another edit may be started on the same key.
+ */
+ public void commit() throws IOException {
+ if (hasErrors) {
+ completeEdit(this, false);
+ remove(entry.key); // the previous entry is stale
+ } else {
+ completeEdit(this, true);
+ }
+ }
+
+ /**
+ * Aborts this edit. This releases the edit lock so another edit may be
+ * started on the same key.
+ */
+ public void abort() throws IOException {
+ completeEdit(this, false);
+ }
+
+ private final class FaultHidingOutputStream extends FilterOutputStream {
+ private FaultHidingOutputStream(OutputStream out) {
+ super(out);
+ }
+
+ @Override public void write(int oneByte) {
+ try {
+ out.write(oneByte);
+ } catch (IOException e) {
+ hasErrors = true;
+ }
+ }
+
+ @Override public void write(byte[] buffer, int offset, int length) {
+ try {
+ out.write(buffer, offset, length);
+ } catch (IOException e) {
+ hasErrors = true;
+ }
+ }
+
+ @Override public void close() {
+ try {
+ out.close();
+ } catch (IOException e) {
+ hasErrors = true;
+ }
+ }
+
+ @Override public void flush() {
+ try {
+ out.flush();
+ } catch (IOException e) {
+ hasErrors = true;
+ }
+ }
+ }
+ }
+
+ private final class Entry {
+ private final String key;
+
+ /** Lengths of this entry's files. */
+ private final long[] lengths;
+
+ /** True if this entry has ever been published. */
+ private boolean readable;
+
+ /** The ongoing edit or null if this entry is not being edited. */
+ private Editor currentEditor;
+
+ /** The sequence number of the most recently committed edit to this entry. */
+ private long sequenceNumber;
+
+ private Entry(String key) {
+ this.key = key;
+ this.lengths = new long[valueCount];
+ }
+
+ public String getLengths() throws IOException {
+ StringBuilder result = new StringBuilder();
+ for (long size : lengths) {
+ result.append(' ').append(size);
+ }
+ return result.toString();
+ }
+
+ /** Set lengths using decimal numbers like "10123". */
+ private void setLengths(String[] strings) throws IOException {
+ if (strings.length != valueCount) {
+ throw invalidLengths(strings);
+ }
+
+ try {
+ for (int i = 0; i < strings.length; i++) {
+ lengths[i] = Long.parseLong(strings[i]);
+ }
+ } catch (NumberFormatException e) {
+ throw invalidLengths(strings);
+ }
+ }
+
+ private IOException invalidLengths(String[] strings) throws IOException {
+ throw new IOException("unexpected journal line: " + Arrays.toString(strings));
+ }
+
+ public File getCleanFile(int i) {
+ return new File(directory, key + "." + i);
+ }
+
+ public File getDirtyFile(int i) {
+ return new File(directory, key + "." + i + ".tmp");
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/Dns.java b/framework/src/com/squareup/okhttp/internal/Dns.java
new file mode 100644
index 00000000..69b2d37e
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/Dns.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2012 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+/**
+ * Domain name service. Prefer this over {@link InetAddress#getAllByName} to
+ * make code more testable.
+ */
+public interface Dns {
+ Dns DEFAULT = new Dns() {
+ @Override public InetAddress[] getAllByName(String host) throws UnknownHostException {
+ return InetAddress.getAllByName(host);
+ }
+ };
+
+ InetAddress[] getAllByName(String host) throws UnknownHostException;
+}
diff --git a/framework/src/com/squareup/okhttp/internal/NamedRunnable.java b/framework/src/com/squareup/okhttp/internal/NamedRunnable.java
new file mode 100644
index 00000000..ce430b27
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/NamedRunnable.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal;
+
+/**
+ * Runnable implementation which always sets its thread name.
+ */
+public abstract class NamedRunnable implements Runnable {
+ private String name;
+
+ public NamedRunnable(String name) {
+ this.name = name;
+ }
+
+ @Override public final void run() {
+ String oldName = Thread.currentThread().getName();
+ Thread.currentThread().setName(name);
+ try {
+ execute();
+ } finally {
+ Thread.currentThread().setName(oldName);
+ }
+ }
+
+ protected abstract void execute();
+}
diff --git a/framework/src/com/squareup/okhttp/internal/Platform.java b/framework/src/com/squareup/okhttp/internal/Platform.java
new file mode 100644
index 00000000..75cd66f7
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/Platform.java
@@ -0,0 +1,343 @@
+/*
+ * Copyright (C) 2012 Square, Inc.
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal;
+
+import com.squareup.okhttp.OkHttpClient;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.net.Socket;
+import java.net.SocketException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.zip.Deflater;
+import java.util.zip.DeflaterOutputStream;
+import javax.net.ssl.SSLSocket;
+
+/**
+ * Access to Platform-specific features necessary for SPDY and advanced TLS.
+ *
+ * SPDY
+ * SPDY requires a TLS extension called NPN (Next Protocol Negotiation) that's
+ * available in Android 4.1+ and OpenJDK 7+ (with the npn-boot extension). It
+ * also requires a recent version of {@code DeflaterOutputStream} that is
+ * public API in Java 7 and callable via reflection in Android 4.1+.
+ */
+public class Platform {
+ private static final Platform PLATFORM = findPlatform();
+
+ private Constructor deflaterConstructor;
+
+ public static Platform get() {
+ return PLATFORM;
+ }
+
+ public void logW(String warning) {
+ System.out.println(warning);
+ }
+
+ public void tagSocket(Socket socket) throws SocketException {
+ }
+
+ public void untagSocket(Socket socket) throws SocketException {
+ }
+
+ public URI toUriLenient(URL url) throws URISyntaxException {
+ return url.toURI(); // this isn't as good as the built-in toUriLenient
+ }
+
+ /**
+ * Attempt a TLS connection with useful extensions enabled. This mode
+ * supports more features, but is less likely to be compatible with older
+ * HTTPS servers.
+ */
+ public void enableTlsExtensions(SSLSocket socket, String uriHost) {
+ }
+
+ /**
+ * Attempt a secure connection with basic functionality to maximize
+ * compatibility. Currently this uses SSL 3.0.
+ */
+ public void supportTlsIntolerantServer(SSLSocket socket) {
+ socket.setEnabledProtocols(new String[] {"SSLv3"});
+ }
+
+ /** Returns the negotiated protocol, or null if no protocol was negotiated. */
+ public byte[] getNpnSelectedProtocol(SSLSocket socket) {
+ return null;
+ }
+
+ /**
+ * Sets client-supported protocols on a socket to send to a server. The
+ * protocols are only sent if the socket implementation supports NPN.
+ */
+ public void setNpnProtocols(SSLSocket socket, byte[] npnProtocols) {
+ }
+
+ /**
+ * Returns a deflater output stream that supports SYNC_FLUSH for SPDY name
+ * value blocks. This throws an {@link UnsupportedOperationException} on
+ * Java 6 and earlier where there is no built-in API to do SYNC_FLUSH.
+ */
+ public OutputStream newDeflaterOutputStream(OutputStream out, Deflater deflater,
+ boolean syncFlush) {
+ try {
+ Constructor constructor = deflaterConstructor;
+ if (constructor == null) {
+ constructor = deflaterConstructor = DeflaterOutputStream.class.getConstructor(
+ OutputStream.class, Deflater.class, boolean.class);
+ }
+ return constructor.newInstance(out, deflater, syncFlush);
+ } catch (NoSuchMethodException e) {
+ throw new UnsupportedOperationException("Cannot SPDY; no SYNC_FLUSH available");
+ } catch (InvocationTargetException e) {
+ throw e.getCause() instanceof RuntimeException ? (RuntimeException) e.getCause()
+ : new RuntimeException(e.getCause());
+ } catch (InstantiationException e) {
+ throw new RuntimeException(e);
+ } catch (IllegalAccessException e) {
+ throw new AssertionError();
+ }
+ }
+
+ /** Attempt to match the host runtime to a capable Platform implementation. */
+ private static Platform findPlatform() {
+ // Attempt to find Android 2.3+ APIs.
+ Class openSslSocketClass;
+ Method setUseSessionTickets;
+ Method setHostname;
+ try {
+ openSslSocketClass = Class.forName("org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl");
+ setUseSessionTickets = openSslSocketClass.getMethod("setUseSessionTickets", boolean.class);
+ setHostname = openSslSocketClass.getMethod("setHostname", String.class);
+
+ // Attempt to find Android 4.1+ APIs.
+ try {
+ Method setNpnProtocols = openSslSocketClass.getMethod("setNpnProtocols", byte[].class);
+ Method getNpnSelectedProtocol = openSslSocketClass.getMethod("getNpnSelectedProtocol");
+ return new Android41(openSslSocketClass, setUseSessionTickets, setHostname, setNpnProtocols,
+ getNpnSelectedProtocol);
+ } catch (NoSuchMethodException ignored) {
+ return new Android23(openSslSocketClass, setUseSessionTickets, setHostname);
+ }
+ } catch (ClassNotFoundException ignored) {
+ // This isn't an Android runtime.
+ } catch (NoSuchMethodException ignored) {
+ // This isn't Android 2.3 or better.
+ }
+
+ // Attempt to find the Jetty's NPN extension for OpenJDK.
+ try {
+ String npnClassName = "org.eclipse.jetty.npn.NextProtoNego";
+ Class nextProtoNegoClass = Class.forName(npnClassName);
+ Class providerClass = Class.forName(npnClassName + "$Provider");
+ Class clientProviderClass = Class.forName(npnClassName + "$ClientProvider");
+ Class serverProviderClass = Class.forName(npnClassName + "$ServerProvider");
+ Method putMethod = nextProtoNegoClass.getMethod("put", SSLSocket.class, providerClass);
+ Method getMethod = nextProtoNegoClass.getMethod("get", SSLSocket.class);
+ return new JdkWithJettyNpnPlatform(putMethod, getMethod, clientProviderClass,
+ serverProviderClass);
+ } catch (ClassNotFoundException ignored) {
+ return new Platform(); // NPN isn't on the classpath.
+ } catch (NoSuchMethodException ignored) {
+ return new Platform(); // The NPN version isn't what we expect.
+ }
+ }
+
+ /**
+ * Android version 2.3 and newer support TLS session tickets and server name
+ * indication (SNI).
+ */
+ private static class Android23 extends Platform {
+ protected final Class openSslSocketClass;
+ private final Method setUseSessionTickets;
+ private final Method setHostname;
+
+ private Android23(Class openSslSocketClass, Method setUseSessionTickets,
+ Method setHostname) {
+ this.openSslSocketClass = openSslSocketClass;
+ this.setUseSessionTickets = setUseSessionTickets;
+ this.setHostname = setHostname;
+ }
+
+ @Override public void enableTlsExtensions(SSLSocket socket, String uriHost) {
+ super.enableTlsExtensions(socket, uriHost);
+ if (openSslSocketClass.isInstance(socket)) {
+ // This is Android: use reflection on OpenSslSocketImpl.
+ try {
+ setUseSessionTickets.invoke(socket, true);
+ setHostname.invoke(socket, uriHost);
+ } catch (InvocationTargetException e) {
+ throw new RuntimeException(e);
+ } catch (IllegalAccessException e) {
+ throw new AssertionError(e);
+ }
+ }
+ }
+ }
+
+ /** Android version 4.1 and newer support NPN. */
+ private static class Android41 extends Android23 {
+ private final Method setNpnProtocols;
+ private final Method getNpnSelectedProtocol;
+
+ private Android41(Class openSslSocketClass, Method setUseSessionTickets, Method setHostname,
+ Method setNpnProtocols, Method getNpnSelectedProtocol) {
+ super(openSslSocketClass, setUseSessionTickets, setHostname);
+ this.setNpnProtocols = setNpnProtocols;
+ this.getNpnSelectedProtocol = getNpnSelectedProtocol;
+ }
+
+ @Override public void setNpnProtocols(SSLSocket socket, byte[] npnProtocols) {
+ if (!openSslSocketClass.isInstance(socket)) {
+ return;
+ }
+ try {
+ setNpnProtocols.invoke(socket, new Object[] {npnProtocols});
+ } catch (IllegalAccessException e) {
+ throw new AssertionError(e);
+ } catch (InvocationTargetException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ @Override public byte[] getNpnSelectedProtocol(SSLSocket socket) {
+ if (!openSslSocketClass.isInstance(socket)) {
+ return null;
+ }
+ try {
+ return (byte[]) getNpnSelectedProtocol.invoke(socket);
+ } catch (InvocationTargetException e) {
+ throw new RuntimeException(e);
+ } catch (IllegalAccessException e) {
+ throw new AssertionError(e);
+ }
+ }
+ }
+
+ /**
+ * OpenJDK 7 plus {@code org.mortbay.jetty.npn/npn-boot} on the boot class
+ * path.
+ */
+ private static class JdkWithJettyNpnPlatform extends Platform {
+ private final Method getMethod;
+ private final Method putMethod;
+ private final Class clientProviderClass;
+ private final Class serverProviderClass;
+
+ public JdkWithJettyNpnPlatform(Method putMethod, Method getMethod, Class clientProviderClass,
+ Class serverProviderClass) {
+ this.putMethod = putMethod;
+ this.getMethod = getMethod;
+ this.clientProviderClass = clientProviderClass;
+ this.serverProviderClass = serverProviderClass;
+ }
+
+ @Override public void setNpnProtocols(SSLSocket socket, byte[] npnProtocols) {
+ try {
+ List strings = new ArrayList();
+ for (int i = 0; i < npnProtocols.length; ) {
+ int length = npnProtocols[i++];
+ strings.add(new String(npnProtocols, i, length, "US-ASCII"));
+ i += length;
+ }
+ Object provider = Proxy.newProxyInstance(Platform.class.getClassLoader(),
+ new Class[] {clientProviderClass, serverProviderClass},
+ new JettyNpnProvider(strings));
+ putMethod.invoke(null, socket, provider);
+ } catch (UnsupportedEncodingException e) {
+ throw new AssertionError(e);
+ } catch (InvocationTargetException e) {
+ throw new AssertionError(e);
+ } catch (IllegalAccessException e) {
+ throw new AssertionError(e);
+ }
+ }
+
+ @Override public byte[] getNpnSelectedProtocol(SSLSocket socket) {
+ try {
+ JettyNpnProvider provider =
+ (JettyNpnProvider) Proxy.getInvocationHandler(getMethod.invoke(null, socket));
+ if (!provider.unsupported && provider.selected == null) {
+ Logger logger = Logger.getLogger(OkHttpClient.class.getName());
+ logger.log(Level.INFO,
+ "NPN callback dropped so SPDY is disabled. " + "Is npn-boot on the boot class path?");
+ return null;
+ }
+ return provider.unsupported ? null : provider.selected.getBytes("US-ASCII");
+ } catch (UnsupportedEncodingException e) {
+ throw new AssertionError();
+ } catch (InvocationTargetException e) {
+ throw new AssertionError();
+ } catch (IllegalAccessException e) {
+ throw new AssertionError();
+ }
+ }
+ }
+
+ /**
+ * Handle the methods of NextProtoNego's ClientProvider and ServerProvider
+ * without a compile-time dependency on those interfaces.
+ */
+ private static class JettyNpnProvider implements InvocationHandler {
+ private final List protocols;
+ private boolean unsupported;
+ private String selected;
+
+ public JettyNpnProvider(List protocols) {
+ this.protocols = protocols;
+ }
+
+ @Override public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+ String methodName = method.getName();
+ Class returnType = method.getReturnType();
+ if (args == null) {
+ args = Util.EMPTY_STRING_ARRAY;
+ }
+ if (methodName.equals("supports") && boolean.class == returnType) {
+ return true;
+ } else if (methodName.equals("unsupported") && void.class == returnType) {
+ this.unsupported = true;
+ return null;
+ } else if (methodName.equals("protocols") && args.length == 0) {
+ return protocols;
+ } else if (methodName.equals("selectProtocol")
+ && String.class == returnType
+ && args.length == 1
+ && (args[0] == null || args[0] instanceof List)) {
+ // TODO: use OpenSSL's algorithm which uses both lists
+ List serverProtocols = (List) args[0];
+ this.selected = protocols.get(0);
+ return selected;
+ } else if (methodName.equals("protocolSelected") && args.length == 1) {
+ this.selected = (String) args[0];
+ return null;
+ } else {
+ return method.invoke(this, args);
+ }
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/StrictLineReader.java b/framework/src/com/squareup/okhttp/internal/StrictLineReader.java
new file mode 100644
index 00000000..93f17540
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/StrictLineReader.java
@@ -0,0 +1,231 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal;
+
+import java.io.ByteArrayOutputStream;
+import java.io.Closeable;
+import java.io.EOFException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+
+import static com.squareup.okhttp.internal.Util.ISO_8859_1;
+import static com.squareup.okhttp.internal.Util.US_ASCII;
+import static com.squareup.okhttp.internal.Util.UTF_8;
+
+/**
+ * Buffers input from an {@link InputStream} for reading lines.
+ *
+ * This class is used for buffered reading of lines. For purposes of this class, a line ends with
+ * "\n" or "\r\n". End of input is reported by throwing {@code EOFException}. Unterminated line at
+ * end of input is invalid and will be ignored, the caller may use {@code hasUnterminatedLine()}
+ * to detect it after catching the {@code EOFException}.
+ *
+ * This class is intended for reading input that strictly consists of lines, such as line-based
+ * cache entries or cache journal. Unlike the {@link BufferedReader} which in conjunction with
+ * {@link InputStreamReader} provides similar functionality, this class uses different
+ * end-of-input reporting and a more restrictive definition of a line.
+ *
+ * This class supports only charsets that encode '\r' and '\n' as a single byte with value 13
+ * and 10, respectively, and the representation of no other character contains these values.
+ * We currently check in constructor that the charset is one of US-ASCII, UTF-8 and ISO-8859-1.
+ * The default charset is US_ASCII.
+ */
+public class StrictLineReader implements Closeable {
+ private static final byte CR = (byte) '\r';
+ private static final byte LF = (byte) '\n';
+
+ private final InputStream in;
+ private final Charset charset;
+
+ // Buffered data is stored in {@code buf}. As long as no exception occurs, 0 <= pos <= end
+ // and the data in the range [pos, end) is buffered for reading. At end of input, if there is
+ // an unterminated line, we set end == -1, otherwise end == pos. If the underlying
+ // {@code InputStream} throws an {@code IOException}, end may remain as either pos or -1.
+ private byte[] buf;
+ private int pos;
+ private int end;
+
+ /**
+ * Constructs a new {@code StrictLineReader} with the default capacity and charset.
+ *
+ * @param in the {@code InputStream} to read data from.
+ * @throws NullPointerException if {@code in} is null.
+ */
+ public StrictLineReader(InputStream in) {
+ this(in, 8192);
+ }
+
+ /**
+ * Constructs a new {@code LineReader} with the specified capacity and the default charset.
+ *
+ * @param in the {@code InputStream} to read data from.
+ * @param capacity the capacity of the buffer.
+ * @throws NullPointerException if {@code in} is null.
+ * @throws IllegalArgumentException for negative or zero {@code capacity}.
+ */
+ public StrictLineReader(InputStream in, int capacity) {
+ this(in, capacity, US_ASCII);
+ }
+
+ /**
+ * Constructs a new {@code LineReader} with the specified charset and the default capacity.
+ *
+ * @param in the {@code InputStream} to read data from.
+ * @param charset the charset used to decode data.
+ * Only US-ASCII, UTF-8 and ISO-8859-1 is supported.
+ * @throws NullPointerException if {@code in} or {@code charset} is null.
+ * @throws IllegalArgumentException if the specified charset is not supported.
+ */
+ public StrictLineReader(InputStream in, Charset charset) {
+ this(in, 8192, charset);
+ }
+
+ /**
+ * Constructs a new {@code LineReader} with the specified capacity and charset.
+ *
+ * @param in the {@code InputStream} to read data from.
+ * @param capacity the capacity of the buffer.
+ * @param charset the charset used to decode data.
+ * Only US-ASCII, UTF-8 and ISO-8859-1 is supported.
+ * @throws NullPointerException if {@code in} or {@code charset} is null.
+ * @throws IllegalArgumentException if {@code capacity} is negative or zero
+ * or the specified charset is not supported.
+ */
+ public StrictLineReader(InputStream in, int capacity, Charset charset) {
+ if (in == null || charset == null) {
+ throw new NullPointerException();
+ }
+ if (capacity < 0) {
+ throw new IllegalArgumentException("capacity <= 0");
+ }
+ if (!(charset.equals(US_ASCII) || charset.equals(UTF_8) || charset.equals(ISO_8859_1))) {
+ throw new IllegalArgumentException("Unsupported encoding");
+ }
+
+ this.in = in;
+ this.charset = charset;
+ buf = new byte[capacity];
+ }
+
+ /**
+ * Closes the reader by closing the underlying {@code InputStream} and
+ * marking this reader as closed.
+ *
+ * @throws IOException for errors when closing the underlying {@code InputStream}.
+ */
+ @Override
+ public void close() throws IOException {
+ synchronized (in) {
+ if (buf != null) {
+ buf = null;
+ in.close();
+ }
+ }
+ }
+
+ /**
+ * Reads the next line. A line ends with {@code "\n"} or {@code "\r\n"},
+ * this end of line marker is not included in the result.
+ *
+ * @return the next line from the input.
+ * @throws IOException for underlying {@code InputStream} errors.
+ * @throws EOFException for the end of source stream.
+ */
+ public String readLine() throws IOException {
+ synchronized (in) {
+ if (buf == null) {
+ throw new IOException("LineReader is closed");
+ }
+
+ // Read more data if we are at the end of the buffered data.
+ // Though it's an error to read after an exception, we will let {@code fillBuf()}
+ // throw again if that happens; thus we need to handle end == -1 as well as end == pos.
+ if (pos >= end) {
+ fillBuf();
+ }
+ // Try to find LF in the buffered data and return the line if successful.
+ for (int i = pos; i != end; ++i) {
+ if (buf[i] == LF) {
+ int lineEnd = (i != pos && buf[i - 1] == CR) ? i - 1 : i;
+ String res = new String(buf, pos, lineEnd - pos, charset);
+ pos = i + 1;
+ return res;
+ }
+ }
+
+ // Let's anticipate up to 80 characters on top of those already read.
+ ByteArrayOutputStream out = new ByteArrayOutputStream(end - pos + 80) {
+ @Override
+ public String toString() {
+ int length = (count > 0 && buf[count - 1] == CR) ? count - 1 : count;
+ return new String(buf, 0, length, charset);
+ }
+ };
+
+ while (true) {
+ out.write(buf, pos, end - pos);
+ // Mark unterminated line in case fillBuf throws EOFException or IOException.
+ end = -1;
+ fillBuf();
+ // Try to find LF in the buffered data and return the line if successful.
+ for (int i = pos; i != end; ++i) {
+ if (buf[i] == LF) {
+ if (i != pos) {
+ out.write(buf, pos, i - pos);
+ }
+ pos = i + 1;
+ return out.toString();
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * Read an {@code int} from a line containing its decimal representation.
+ *
+ * @return the value of the {@code int} from the next line.
+ * @throws IOException for underlying {@code InputStream} errors or conversion error.
+ * @throws EOFException for the end of source stream.
+ */
+ public int readInt() throws IOException {
+ String intString = readLine();
+ try {
+ return Integer.parseInt(intString);
+ } catch (NumberFormatException e) {
+ throw new IOException("expected an int but was \"" + intString + "\"");
+ }
+ }
+
+ /**
+ * Reads new input data into the buffer. Call only with pos == end or end == -1,
+ * depending on the desired outcome if the function throws.
+ *
+ * @throws IOException for underlying {@code InputStream} errors.
+ * @throws EOFException for the end of source stream.
+ */
+ private void fillBuf() throws IOException {
+ int result = in.read(buf, 0, buf.length);
+ if (result == -1) {
+ throw new EOFException();
+ }
+ pos = 0;
+ end = result;
+ }
+}
+
diff --git a/framework/src/com/squareup/okhttp/internal/Util.java b/framework/src/com/squareup/okhttp/internal/Util.java
new file mode 100644
index 00000000..dc914ccd
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/Util.java
@@ -0,0 +1,325 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal;
+
+import java.io.Closeable;
+import java.io.EOFException;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Reader;
+import java.io.StringWriter;
+import java.net.Socket;
+import java.net.URI;
+import java.net.URL;
+import java.nio.ByteOrder;
+import java.nio.charset.Charset;
+import java.util.concurrent.atomic.AtomicReference;
+
+/** Junk drawer of utility methods. */
+public final class Util {
+ public static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
+ public static final String[] EMPTY_STRING_ARRAY = new String[0];
+
+ /** A cheap and type-safe constant for the ISO-8859-1 Charset. */
+ public static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1");
+
+ /** A cheap and type-safe constant for the US-ASCII Charset. */
+ public static final Charset US_ASCII = Charset.forName("US-ASCII");
+
+ /** A cheap and type-safe constant for the UTF-8 Charset. */
+ public static final Charset UTF_8 = Charset.forName("UTF-8");
+ private static AtomicReference skipBuffer = new AtomicReference();
+
+ private Util() {
+ }
+
+ public static int getEffectivePort(URI uri) {
+ return getEffectivePort(uri.getScheme(), uri.getPort());
+ }
+
+ public static int getEffectivePort(URL url) {
+ return getEffectivePort(url.getProtocol(), url.getPort());
+ }
+
+ private static int getEffectivePort(String scheme, int specifiedPort) {
+ return specifiedPort != -1 ? specifiedPort : getDefaultPort(scheme);
+ }
+
+ public static int getDefaultPort(String scheme) {
+ if ("http".equalsIgnoreCase(scheme)) {
+ return 80;
+ } else if ("https".equalsIgnoreCase(scheme)) {
+ return 443;
+ } else {
+ return -1;
+ }
+ }
+
+ public static void checkOffsetAndCount(int arrayLength, int offset, int count) {
+ if ((offset | count) < 0 || offset > arrayLength || arrayLength - offset < count) {
+ throw new ArrayIndexOutOfBoundsException();
+ }
+ }
+
+ public static void pokeInt(byte[] dst, int offset, int value, ByteOrder order) {
+ if (order == ByteOrder.BIG_ENDIAN) {
+ dst[offset++] = (byte) ((value >> 24) & 0xff);
+ dst[offset++] = (byte) ((value >> 16) & 0xff);
+ dst[offset++] = (byte) ((value >> 8) & 0xff);
+ dst[offset] = (byte) ((value >> 0) & 0xff);
+ } else {
+ dst[offset++] = (byte) ((value >> 0) & 0xff);
+ dst[offset++] = (byte) ((value >> 8) & 0xff);
+ dst[offset++] = (byte) ((value >> 16) & 0xff);
+ dst[offset] = (byte) ((value >> 24) & 0xff);
+ }
+ }
+
+ /** Returns true if two possibly-null objects are equal. */
+ public static boolean equal(Object a, Object b) {
+ return a == b || (a != null && a.equals(b));
+ }
+
+ /**
+ * Closes {@code closeable}, ignoring any checked exceptions. Does nothing
+ * if {@code closeable} is null.
+ */
+ public static void closeQuietly(Closeable closeable) {
+ if (closeable != null) {
+ try {
+ closeable.close();
+ } catch (RuntimeException rethrown) {
+ throw rethrown;
+ } catch (Exception ignored) {
+ }
+ }
+ }
+
+ /**
+ * Closes {@code socket}, ignoring any checked exceptions. Does nothing if
+ * {@code socket} is null.
+ */
+ public static void closeQuietly(Socket socket) {
+ if (socket != null) {
+ try {
+ socket.close();
+ } catch (RuntimeException rethrown) {
+ throw rethrown;
+ } catch (Exception ignored) {
+ }
+ }
+ }
+
+ /**
+ * Closes {@code a} and {@code b}. If either close fails, this completes
+ * the other close and rethrows the first encountered exception.
+ */
+ public static void closeAll(Closeable a, Closeable b) throws IOException {
+ Throwable thrown = null;
+ try {
+ a.close();
+ } catch (Throwable e) {
+ thrown = e;
+ }
+ try {
+ b.close();
+ } catch (Throwable e) {
+ if (thrown == null) thrown = e;
+ }
+ if (thrown == null) return;
+ if (thrown instanceof IOException) throw (IOException) thrown;
+ if (thrown instanceof RuntimeException) throw (RuntimeException) thrown;
+ if (thrown instanceof Error) throw (Error) thrown;
+ throw new AssertionError(thrown);
+ }
+
+ /** Recursively delete everything in {@code dir}. */
+ // TODO: this should specify paths as Strings rather than as Files
+ public static void deleteContents(File dir) throws IOException {
+ File[] files = dir.listFiles();
+ if (files == null) {
+ throw new IllegalArgumentException("not a directory: " + dir);
+ }
+ for (File file : files) {
+ if (file.isDirectory()) {
+ deleteContents(file);
+ }
+ if (!file.delete()) {
+ throw new IOException("failed to delete file: " + file);
+ }
+ }
+ }
+
+ /**
+ * Implements InputStream.read(int) in terms of InputStream.read(byte[], int, int).
+ * InputStream assumes that you implement InputStream.read(int) and provides default
+ * implementations of the others, but often the opposite is more efficient.
+ */
+ public static int readSingleByte(InputStream in) throws IOException {
+ byte[] buffer = new byte[1];
+ int result = in.read(buffer, 0, 1);
+ return (result != -1) ? buffer[0] & 0xff : -1;
+ }
+
+ /**
+ * Implements OutputStream.write(int) in terms of OutputStream.write(byte[], int, int).
+ * OutputStream assumes that you implement OutputStream.write(int) and provides default
+ * implementations of the others, but often the opposite is more efficient.
+ */
+ public static void writeSingleByte(OutputStream out, int b) throws IOException {
+ byte[] buffer = new byte[1];
+ buffer[0] = (byte) (b & 0xff);
+ out.write(buffer);
+ }
+
+ /**
+ * Fills 'dst' with bytes from 'in', throwing EOFException if insufficient bytes are available.
+ */
+ public static void readFully(InputStream in, byte[] dst) throws IOException {
+ readFully(in, dst, 0, dst.length);
+ }
+
+ /**
+ * Reads exactly 'byteCount' bytes from 'in' (into 'dst' at offset 'offset'), and throws
+ * EOFException if insufficient bytes are available.
+ *
+ * Used to implement {@link java.io.DataInputStream#readFully(byte[], int, int)}.
+ */
+ public static void readFully(InputStream in, byte[] dst, int offset, int byteCount)
+ throws IOException {
+ if (byteCount == 0) {
+ return;
+ }
+ if (in == null) {
+ throw new NullPointerException("in == null");
+ }
+ if (dst == null) {
+ throw new NullPointerException("dst == null");
+ }
+ checkOffsetAndCount(dst.length, offset, byteCount);
+ while (byteCount > 0) {
+ int bytesRead = in.read(dst, offset, byteCount);
+ if (bytesRead < 0) {
+ throw new EOFException();
+ }
+ offset += bytesRead;
+ byteCount -= bytesRead;
+ }
+ }
+
+ /** Returns the remainder of 'reader' as a string, closing it when done. */
+ public static String readFully(Reader reader) throws IOException {
+ try {
+ StringWriter writer = new StringWriter();
+ char[] buffer = new char[1024];
+ int count;
+ while ((count = reader.read(buffer)) != -1) {
+ writer.write(buffer, 0, count);
+ }
+ return writer.toString();
+ } finally {
+ reader.close();
+ }
+ }
+
+ public static void skipAll(InputStream in) throws IOException {
+ do {
+ in.skip(Long.MAX_VALUE);
+ } while (in.read() != -1);
+ }
+
+ /**
+ * Call {@code in.read()} repeatedly until either the stream is exhausted or
+ * {@code byteCount} bytes have been read.
+ *
+ * This method reuses the skip buffer but is careful to never use it at
+ * the same time that another stream is using it. Otherwise streams that use
+ * the caller's buffer for consistency checks like CRC could be clobbered by
+ * other threads. A thread-local buffer is also insufficient because some
+ * streams may call other streams in their skip() method, also clobbering the
+ * buffer.
+ */
+ public static long skipByReading(InputStream in, long byteCount) throws IOException {
+ // acquire the shared skip buffer.
+ byte[] buffer = skipBuffer.getAndSet(null);
+ if (buffer == null) {
+ buffer = new byte[4096];
+ }
+
+ long skipped = 0;
+ while (skipped < byteCount) {
+ int toRead = (int) Math.min(byteCount - skipped, buffer.length);
+ int read = in.read(buffer, 0, toRead);
+ if (read == -1) {
+ break;
+ }
+ skipped += read;
+ if (read < toRead) {
+ break;
+ }
+ }
+
+ // release the shared skip buffer.
+ skipBuffer.set(buffer);
+
+ return skipped;
+ }
+
+ /**
+ * Copies all of the bytes from {@code in} to {@code out}. Neither stream is closed.
+ * Returns the total number of bytes transferred.
+ */
+ public static int copy(InputStream in, OutputStream out) throws IOException {
+ int total = 0;
+ byte[] buffer = new byte[8192];
+ int c;
+ while ((c = in.read(buffer)) != -1) {
+ total += c;
+ out.write(buffer, 0, c);
+ }
+ return total;
+ }
+
+ /**
+ * Returns the ASCII characters up to but not including the next "\r\n", or
+ * "\n".
+ *
+ * @throws java.io.EOFException if the stream is exhausted before the next newline
+ * character.
+ */
+ public static String readAsciiLine(InputStream in) throws IOException {
+ // TODO: support UTF-8 here instead
+ StringBuilder result = new StringBuilder(80);
+ while (true) {
+ int c = in.read();
+ if (c == -1) {
+ throw new EOFException();
+ } else if (c == '\n') {
+ break;
+ }
+
+ result.append((char) c);
+ }
+ int length = result.length();
+ if (length > 0 && result.charAt(length - 1) == '\r') {
+ result.setLength(length - 1);
+ }
+ return result.toString();
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/AbstractHttpInputStream.java b/framework/src/com/squareup/okhttp/internal/http/AbstractHttpInputStream.java
new file mode 100644
index 00000000..187f3b6e
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/AbstractHttpInputStream.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.internal.Util;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.CacheRequest;
+
+/**
+ * An input stream for the body of an HTTP response.
+ *
+ *
Since a single socket's input stream may be used to read multiple HTTP
+ * responses from the same server, subclasses shouldn't close the socket stream.
+ *
+ *
A side effect of reading an HTTP response is that the response cache
+ * is populated. If the stream is closed early, that cache entry will be
+ * invalidated.
+ */
+abstract class AbstractHttpInputStream extends InputStream {
+ protected final InputStream in;
+ protected final HttpEngine httpEngine;
+ private final CacheRequest cacheRequest;
+ private final OutputStream cacheBody;
+ protected boolean closed;
+
+ AbstractHttpInputStream(InputStream in, HttpEngine httpEngine, CacheRequest cacheRequest)
+ throws IOException {
+ this.in = in;
+ this.httpEngine = httpEngine;
+
+ OutputStream cacheBody = cacheRequest != null ? cacheRequest.getBody() : null;
+
+ // some apps return a null body; for compatibility we treat that like a null cache request
+ if (cacheBody == null) {
+ cacheRequest = null;
+ }
+
+ this.cacheBody = cacheBody;
+ this.cacheRequest = cacheRequest;
+ }
+
+ /**
+ * read() is implemented using read(byte[], int, int) so subclasses only
+ * need to override the latter.
+ */
+ @Override public final int read() throws IOException {
+ return Util.readSingleByte(this);
+ }
+
+ protected final void checkNotClosed() throws IOException {
+ if (closed) {
+ throw new IOException("stream closed");
+ }
+ }
+
+ protected final void cacheWrite(byte[] buffer, int offset, int count) throws IOException {
+ if (cacheBody != null) {
+ cacheBody.write(buffer, offset, count);
+ }
+ }
+
+ /**
+ * Closes the cache entry and makes the socket available for reuse. This
+ * should be invoked when the end of the body has been reached.
+ */
+ protected final void endOfInput(boolean streamCancelled) throws IOException {
+ if (cacheRequest != null) {
+ cacheBody.close();
+ }
+ httpEngine.release(streamCancelled);
+ }
+
+ /**
+ * Calls abort on the cache entry and disconnects the socket. This
+ * should be invoked when the connection is closed unexpectedly to
+ * invalidate the cache entry and to prevent the HTTP connection from
+ * being reused. HTTP messages are sent in serial so whenever a message
+ * cannot be read to completion, subsequent messages cannot be read
+ * either and the connection must be discarded.
+ *
+ *
An earlier implementation skipped the remaining bytes, but this
+ * requires that the entire transfer be completed. If the intention was
+ * to cancel the transfer, closing the connection is the only solution.
+ */
+ protected final void unexpectedEndOfInput() {
+ if (cacheRequest != null) {
+ cacheRequest.abort();
+ }
+ httpEngine.release(true);
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/AbstractHttpOutputStream.java b/framework/src/com/squareup/okhttp/internal/http/AbstractHttpOutputStream.java
new file mode 100644
index 00000000..90675b06
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/AbstractHttpOutputStream.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * An output stream for the body of an HTTP request.
+ *
+ *
Since a single socket's output stream may be used to write multiple HTTP
+ * requests to the same server, subclasses should not close the socket stream.
+ */
+abstract class AbstractHttpOutputStream extends OutputStream {
+ protected boolean closed;
+
+ @Override public final void write(int data) throws IOException {
+ write(new byte[] { (byte) data });
+ }
+
+ protected final void checkNotClosed() throws IOException {
+ if (closed) {
+ throw new IOException("stream closed");
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HeaderParser.java b/framework/src/com/squareup/okhttp/internal/http/HeaderParser.java
new file mode 100644
index 00000000..12e64097
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HeaderParser.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+final class HeaderParser {
+
+ public interface CacheControlHandler {
+ void handle(String directive, String parameter);
+ }
+
+ /** Parse a comma-separated list of cache control header values. */
+ public static void parseCacheControl(String value, CacheControlHandler handler) {
+ int pos = 0;
+ while (pos < value.length()) {
+ int tokenStart = pos;
+ pos = skipUntil(value, pos, "=,");
+ String directive = value.substring(tokenStart, pos).trim();
+
+ if (pos == value.length() || value.charAt(pos) == ',') {
+ pos++; // consume ',' (if necessary)
+ handler.handle(directive, null);
+ continue;
+ }
+
+ pos++; // consume '='
+ pos = skipWhitespace(value, pos);
+
+ String parameter;
+
+ // quoted string
+ if (pos < value.length() && value.charAt(pos) == '\"') {
+ pos++; // consume '"' open quote
+ int parameterStart = pos;
+ pos = skipUntil(value, pos, "\"");
+ parameter = value.substring(parameterStart, pos);
+ pos++; // consume '"' close quote (if necessary)
+
+ // unquoted string
+ } else {
+ int parameterStart = pos;
+ pos = skipUntil(value, pos, ",");
+ parameter = value.substring(parameterStart, pos).trim();
+ }
+
+ handler.handle(directive, parameter);
+ }
+ }
+
+ /**
+ * Returns the next index in {@code input} at or after {@code pos} that
+ * contains a character from {@code characters}. Returns the input length if
+ * none of the requested characters can be found.
+ */
+ public static int skipUntil(String input, int pos, String characters) {
+ for (; pos < input.length(); pos++) {
+ if (characters.indexOf(input.charAt(pos)) != -1) {
+ break;
+ }
+ }
+ return pos;
+ }
+
+ /**
+ * Returns the next non-whitespace character in {@code input} that is white
+ * space. Result is undefined if input contains newline characters.
+ */
+ public static int skipWhitespace(String input, int pos) {
+ for (; pos < input.length(); pos++) {
+ char c = input.charAt(pos);
+ if (c != ' ' && c != '\t') {
+ break;
+ }
+ }
+ return pos;
+ }
+
+ /**
+ * Returns {@code value} as a positive integer, or 0 if it is negative, or
+ * -1 if it cannot be parsed.
+ */
+ public static int parseSeconds(String value) {
+ try {
+ long seconds = Long.parseLong(value);
+ if (seconds > Integer.MAX_VALUE) {
+ return Integer.MAX_VALUE;
+ } else if (seconds < 0) {
+ return 0;
+ } else {
+ return (int) seconds;
+ }
+ } catch (NumberFormatException e) {
+ return -1;
+ }
+ }
+
+ private HeaderParser() {
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HttpAuthenticator.java b/framework/src/com/squareup/okhttp/internal/http/HttpAuthenticator.java
new file mode 100644
index 00000000..4ccd12aa
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HttpAuthenticator.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2012 Square, Inc.
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.internal.Base64;
+import java.io.IOException;
+import java.net.Authenticator;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.PasswordAuthentication;
+import java.net.Proxy;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+
+import static java.net.HttpURLConnection.HTTP_PROXY_AUTH;
+import static java.net.HttpURLConnection.HTTP_UNAUTHORIZED;
+
+/** Handles HTTP authentication headers from origin and proxy servers. */
+public final class HttpAuthenticator {
+ private HttpAuthenticator() {
+ }
+
+ /**
+ * React to a failed authorization response by looking up new credentials.
+ *
+ * @return true if credentials have been added to successorRequestHeaders
+ * and another request should be attempted.
+ */
+ public static boolean processAuthHeader(int responseCode, RawHeaders responseHeaders,
+ RawHeaders successorRequestHeaders, Proxy proxy, URL url) throws IOException {
+ if (responseCode != HTTP_PROXY_AUTH && responseCode != HTTP_UNAUTHORIZED) {
+ throw new IllegalArgumentException();
+ }
+
+ // Keep asking for username/password until authorized.
+ String challengeHeader =
+ responseCode == HTTP_PROXY_AUTH ? "Proxy-Authenticate" : "WWW-Authenticate";
+ String credentials = getCredentials(responseHeaders, challengeHeader, proxy, url);
+ if (credentials == null) {
+ return false; // Could not find credentials so end the request cycle.
+ }
+
+ // Add authorization credentials, bypassing the already-connected check.
+ String fieldName = responseCode == HTTP_PROXY_AUTH ? "Proxy-Authorization" : "Authorization";
+ successorRequestHeaders.set(fieldName, credentials);
+ return true;
+ }
+
+ /**
+ * Returns the authorization credentials that may satisfy the challenge.
+ * Returns null if a challenge header was not provided or if credentials
+ * were not available.
+ */
+ private static String getCredentials(RawHeaders responseHeaders, String challengeHeader,
+ Proxy proxy, URL url) throws IOException {
+ List challenges = parseChallenges(responseHeaders, challengeHeader);
+ if (challenges.isEmpty()) {
+ return null;
+ }
+
+ for (Challenge challenge : challenges) {
+ // Use the global authenticator to get the password.
+ PasswordAuthentication auth;
+ if (responseHeaders.getResponseCode() == HTTP_PROXY_AUTH) {
+ InetSocketAddress proxyAddress = (InetSocketAddress) proxy.address();
+ auth = Authenticator.requestPasswordAuthentication(proxyAddress.getHostName(),
+ getConnectToInetAddress(proxy, url), proxyAddress.getPort(), url.getProtocol(),
+ challenge.realm, challenge.scheme, url, Authenticator.RequestorType.PROXY);
+ } else {
+ auth = Authenticator.requestPasswordAuthentication(url.getHost(),
+ getConnectToInetAddress(proxy, url), url.getPort(), url.getProtocol(), challenge.realm,
+ challenge.scheme, url, Authenticator.RequestorType.SERVER);
+ }
+ if (auth == null) {
+ continue;
+ }
+
+ // Use base64 to encode the username and password.
+ String usernameAndPassword = auth.getUserName() + ":" + new String(auth.getPassword());
+ byte[] bytes = usernameAndPassword.getBytes("ISO-8859-1");
+ String encoded = Base64.encode(bytes);
+ return challenge.scheme + " " + encoded;
+ }
+
+ return null;
+ }
+
+ private static InetAddress getConnectToInetAddress(Proxy proxy, URL url) throws IOException {
+ return (proxy != null && proxy.type() != Proxy.Type.DIRECT)
+ ? ((InetSocketAddress) proxy.address()).getAddress() : InetAddress.getByName(url.getHost());
+ }
+
+ /**
+ * Parse RFC 2617 challenges. This API is only interested in the scheme
+ * name and realm.
+ */
+ private static List parseChallenges(RawHeaders responseHeaders,
+ String challengeHeader) {
+ // auth-scheme = token
+ // auth-param = token "=" ( token | quoted-string )
+ // challenge = auth-scheme 1*SP 1#auth-param
+ // realm = "realm" "=" realm-value
+ // realm-value = quoted-string
+ List result = new ArrayList();
+ for (int h = 0; h < responseHeaders.length(); h++) {
+ if (!challengeHeader.equalsIgnoreCase(responseHeaders.getFieldName(h))) {
+ continue;
+ }
+ String value = responseHeaders.getValue(h);
+ int pos = 0;
+ while (pos < value.length()) {
+ int tokenStart = pos;
+ pos = HeaderParser.skipUntil(value, pos, " ");
+
+ String scheme = value.substring(tokenStart, pos).trim();
+ pos = HeaderParser.skipWhitespace(value, pos);
+
+ // TODO: This currently only handles schemes with a 'realm' parameter;
+ // It needs to be fixed to handle any scheme and any parameters
+ // http://code.google.com/p/android/issues/detail?id=11140
+
+ if (!value.regionMatches(pos, "realm=\"", 0, "realm=\"".length())) {
+ break; // Unexpected challenge parameter; give up!
+ }
+
+ pos += "realm=\"".length();
+ int realmStart = pos;
+ pos = HeaderParser.skipUntil(value, pos, "\"");
+ String realm = value.substring(realmStart, pos);
+ pos++; // Consume '"' close quote.
+ pos = HeaderParser.skipUntil(value, pos, ",");
+ pos++; // Consume ',' comma.
+ pos = HeaderParser.skipWhitespace(value, pos);
+ result.add(new Challenge(scheme, realm));
+ }
+ }
+ return result;
+ }
+
+ /** An RFC 2617 challenge. */
+ private static final class Challenge {
+ final String scheme;
+ final String realm;
+
+ Challenge(String scheme, String realm) {
+ this.scheme = scheme;
+ this.realm = realm;
+ }
+
+ @Override public boolean equals(Object o) {
+ return o instanceof Challenge
+ && ((Challenge) o).scheme.equals(scheme)
+ && ((Challenge) o).realm.equals(realm);
+ }
+
+ @Override public int hashCode() {
+ return scheme.hashCode() + 31 * realm.hashCode();
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HttpDate.java b/framework/src/com/squareup/okhttp/internal/http/HttpDate.java
new file mode 100644
index 00000000..acb5fda9
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HttpDate.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+import java.util.TimeZone;
+
+/**
+ * Best-effort parser for HTTP dates.
+ */
+final class HttpDate {
+
+ /**
+ * Most websites serve cookies in the blessed format. Eagerly create the parser to ensure such
+ * cookies are on the fast path.
+ */
+ private static final ThreadLocal STANDARD_DATE_FORMAT =
+ new ThreadLocal() {
+ @Override protected DateFormat initialValue() {
+ DateFormat rfc1123 = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US);
+ rfc1123.setTimeZone(TimeZone.getTimeZone("UTC"));
+ return rfc1123;
+ }
+ };
+
+ /** If we fail to parse a date in a non-standard format, try each of these formats in sequence. */
+ private static final String[] BROWSER_COMPATIBLE_DATE_FORMATS = new String[] {
+ /* This list comes from {@code org.apache.http.impl.cookie.BrowserCompatSpec}. */
+ "EEEE, dd-MMM-yy HH:mm:ss zzz", // RFC 1036
+ "EEE MMM d HH:mm:ss yyyy", // ANSI C asctime()
+ "EEE, dd-MMM-yyyy HH:mm:ss z", "EEE, dd-MMM-yyyy HH-mm-ss z", "EEE, dd MMM yy HH:mm:ss z",
+ "EEE dd-MMM-yyyy HH:mm:ss z", "EEE dd MMM yyyy HH:mm:ss z", "EEE dd-MMM-yyyy HH-mm-ss z",
+ "EEE dd-MMM-yy HH:mm:ss z", "EEE dd MMM yy HH:mm:ss z", "EEE,dd-MMM-yy HH:mm:ss z",
+ "EEE,dd-MMM-yyyy HH:mm:ss z", "EEE, dd-MM-yyyy HH:mm:ss z",
+
+ /* RI bug 6641315 claims a cookie of this format was once served by www.yahoo.com */
+ "EEE MMM d yyyy HH:mm:ss z", };
+
+ /**
+ * Returns the date for {@code value}. Returns null if the value couldn't be
+ * parsed.
+ */
+ public static Date parse(String value) {
+ try {
+ return STANDARD_DATE_FORMAT.get().parse(value);
+ } catch (ParseException ignore) {
+ }
+ for (String formatString : BROWSER_COMPATIBLE_DATE_FORMATS) {
+ try {
+ return new SimpleDateFormat(formatString, Locale.US).parse(value);
+ } catch (ParseException ignore) {
+ }
+ }
+ return null;
+ }
+
+ /** Returns the string for {@code value}. */
+ public static String format(Date value) {
+ return STANDARD_DATE_FORMAT.get().format(value);
+ }
+
+ private HttpDate() {
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HttpEngine.java b/framework/src/com/squareup/okhttp/internal/http/HttpEngine.java
new file mode 100644
index 00000000..9caeb196
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HttpEngine.java
@@ -0,0 +1,666 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.Address;
+import com.squareup.okhttp.Connection;
+import com.squareup.okhttp.OkResponseCache;
+import com.squareup.okhttp.ResponseSource;
+import com.squareup.okhttp.TunnelRequest;
+import com.squareup.okhttp.internal.Dns;
+import com.squareup.okhttp.internal.Platform;
+import com.squareup.okhttp.internal.Util;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.CacheRequest;
+import java.net.CacheResponse;
+import java.net.CookieHandler;
+import java.net.Proxy;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.net.UnknownHostException;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.zip.GZIPInputStream;
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLSocketFactory;
+
+import static com.squareup.okhttp.internal.Util.EMPTY_BYTE_ARRAY;
+import static com.squareup.okhttp.internal.Util.getDefaultPort;
+import static com.squareup.okhttp.internal.Util.getEffectivePort;
+
+/**
+ * Handles a single HTTP request/response pair. Each HTTP engine follows this
+ * lifecycle:
+ *
+ * - It is created.
+ *
- The HTTP request message is sent with sendRequest(). Once the request
+ * is sent it is an error to modify the request headers. After
+ * sendRequest() has been called the request body can be written to if
+ * it exists.
+ *
- The HTTP response message is read with readResponse(). After the
+ * response has been read the response headers and body can be read.
+ * All responses have a response body input stream, though in some
+ * instances this stream is empty.
+ *
+ *
+ * The request and response may be served by the HTTP response cache, by the
+ * network, or by both in the event of a conditional GET.
+ *
+ *
This class may hold a socket connection that needs to be released or
+ * recycled. By default, this socket connection is held when the last byte of
+ * the response is consumed. To release the connection when it is no longer
+ * required, use {@link #automaticallyReleaseConnectionToPool()}.
+ */
+public class HttpEngine {
+ private static final CacheResponse GATEWAY_TIMEOUT_RESPONSE = new CacheResponse() {
+ @Override public Map> getHeaders() throws IOException {
+ Map> result = new HashMap>();
+ result.put(null, Collections.singletonList("HTTP/1.1 504 Gateway Timeout"));
+ return result;
+ }
+ @Override public InputStream getBody() throws IOException {
+ return new ByteArrayInputStream(EMPTY_BYTE_ARRAY);
+ }
+ };
+ public static final int HTTP_CONTINUE = 100;
+
+ protected final HttpURLConnectionImpl policy;
+
+ protected final String method;
+
+ private ResponseSource responseSource;
+
+ protected Connection connection;
+ protected RouteSelector routeSelector;
+ private OutputStream requestBodyOut;
+
+ private Transport transport;
+
+ private InputStream responseTransferIn;
+ private InputStream responseBodyIn;
+
+ private CacheResponse cacheResponse;
+ private CacheRequest cacheRequest;
+
+ /** The time when the request headers were written, or -1 if they haven't been written yet. */
+ long sentRequestMillis = -1;
+
+ /**
+ * True if this client added an "Accept-Encoding: gzip" header field and is
+ * therefore responsible for also decompressing the transfer stream.
+ */
+ private boolean transparentGzip;
+
+ final URI uri;
+
+ final RequestHeaders requestHeaders;
+
+ /** Null until a response is received from the network or the cache. */
+ ResponseHeaders responseHeaders;
+
+ // The cache response currently being validated on a conditional get. Null
+ // if the cached response doesn't exist or doesn't need validation. If the
+ // conditional get succeeds, these will be used for the response headers and
+ // body. If it fails, these be closed and set to null.
+ private ResponseHeaders cachedResponseHeaders;
+ private InputStream cachedResponseBody;
+
+ /**
+ * True if the socket connection should be released to the connection pool
+ * when the response has been fully read.
+ */
+ private boolean automaticallyReleaseConnectionToPool;
+
+ /** True if the socket connection is no longer needed by this engine. */
+ private boolean connectionReleased;
+
+ /**
+ * @param requestHeaders the client's supplied request headers. This class
+ * creates a private copy that it can mutate.
+ * @param connection the connection used for an intermediate response
+ * immediately prior to this request/response pair, such as a same-host
+ * redirect. This engine assumes ownership of the connection and must
+ * release it when it is unneeded.
+ */
+ public HttpEngine(HttpURLConnectionImpl policy, String method, RawHeaders requestHeaders,
+ Connection connection, RetryableOutputStream requestBodyOut) throws IOException {
+ this.policy = policy;
+ this.method = method;
+ this.connection = connection;
+ this.requestBodyOut = requestBodyOut;
+
+ try {
+ uri = Platform.get().toUriLenient(policy.getURL());
+ } catch (URISyntaxException e) {
+ throw new IOException(e);
+ }
+
+ this.requestHeaders = new RequestHeaders(uri, new RawHeaders(requestHeaders));
+ }
+
+ public URI getUri() {
+ return uri;
+ }
+
+ /**
+ * Figures out what the response source will be, and opens a socket to that
+ * source if necessary. Prepares the request headers and gets ready to start
+ * writing the request body if it exists.
+ */
+ public final void sendRequest() throws IOException {
+ if (responseSource != null) {
+ return;
+ }
+
+ prepareRawRequestHeaders();
+ initResponseSource();
+ if (policy.responseCache instanceof OkResponseCache) {
+ ((OkResponseCache) policy.responseCache).trackResponse(responseSource);
+ }
+
+ // The raw response source may require the network, but the request
+ // headers may forbid network use. In that case, dispose of the network
+ // response and use a GATEWAY_TIMEOUT response instead, as specified
+ // by http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.4.
+ if (requestHeaders.isOnlyIfCached() && responseSource.requiresConnection()) {
+ if (responseSource == ResponseSource.CONDITIONAL_CACHE) {
+ Util.closeQuietly(cachedResponseBody);
+ }
+ this.responseSource = ResponseSource.CACHE;
+ this.cacheResponse = GATEWAY_TIMEOUT_RESPONSE;
+ RawHeaders rawResponseHeaders = RawHeaders.fromMultimap(cacheResponse.getHeaders(), true);
+ setResponse(new ResponseHeaders(uri, rawResponseHeaders), cacheResponse.getBody());
+ }
+
+ if (responseSource.requiresConnection()) {
+ sendSocketRequest();
+ } else if (connection != null) {
+ policy.connectionPool.recycle(connection);
+ connection = null;
+ }
+ }
+
+ /**
+ * Initialize the source for this response. It may be corrected later if the
+ * request headers forbids network use.
+ */
+ private void initResponseSource() throws IOException {
+ responseSource = ResponseSource.NETWORK;
+ if (!policy.getUseCaches() || policy.responseCache == null) {
+ return;
+ }
+
+ CacheResponse candidate =
+ policy.responseCache.get(uri, method, requestHeaders.getHeaders().toMultimap(false));
+ if (candidate == null) {
+ return;
+ }
+
+ Map> responseHeadersMap = candidate.getHeaders();
+ cachedResponseBody = candidate.getBody();
+ if (!acceptCacheResponseType(candidate)
+ || responseHeadersMap == null
+ || cachedResponseBody == null) {
+ Util.closeQuietly(cachedResponseBody);
+ return;
+ }
+
+ RawHeaders rawResponseHeaders = RawHeaders.fromMultimap(responseHeadersMap, true);
+ cachedResponseHeaders = new ResponseHeaders(uri, rawResponseHeaders);
+ long now = System.currentTimeMillis();
+ this.responseSource = cachedResponseHeaders.chooseResponseSource(now, requestHeaders);
+ if (responseSource == ResponseSource.CACHE) {
+ this.cacheResponse = candidate;
+ setResponse(cachedResponseHeaders, cachedResponseBody);
+ } else if (responseSource == ResponseSource.CONDITIONAL_CACHE) {
+ this.cacheResponse = candidate;
+ } else if (responseSource == ResponseSource.NETWORK) {
+ Util.closeQuietly(cachedResponseBody);
+ } else {
+ throw new AssertionError();
+ }
+ }
+
+ private void sendSocketRequest() throws IOException {
+ if (connection == null) {
+ connect();
+ }
+
+ if (transport != null) {
+ throw new IllegalStateException();
+ }
+
+ transport = (Transport) connection.newTransport(this);
+
+ if (hasRequestBody() && requestBodyOut == null) {
+ // Create a request body if we don't have one already. We'll already
+ // have one if we're retrying a failed POST.
+ requestBodyOut = transport.createRequestBody();
+ }
+ }
+
+ /** Connect to the origin server either directly or via a proxy. */
+ protected final void connect() throws IOException {
+ if (connection != null) {
+ return;
+ }
+ if (routeSelector == null) {
+ String uriHost = uri.getHost();
+ if (uriHost == null) {
+ throw new UnknownHostException(uri.toString());
+ }
+ SSLSocketFactory sslSocketFactory = null;
+ HostnameVerifier hostnameVerifier = null;
+ if (uri.getScheme().equalsIgnoreCase("https")) {
+ sslSocketFactory = policy.sslSocketFactory;
+ hostnameVerifier = policy.hostnameVerifier;
+ }
+ Address address = new Address(uriHost, getEffectivePort(uri), sslSocketFactory,
+ hostnameVerifier, policy.requestedProxy);
+ routeSelector =
+ new RouteSelector(address, uri, policy.proxySelector, policy.connectionPool, Dns.DEFAULT);
+ }
+ connection = routeSelector.next();
+ if (!connection.isConnected()) {
+ connection.connect(policy.getConnectTimeout(), policy.getReadTimeout(), getTunnelConfig());
+ policy.connectionPool.maybeShare(connection);
+ }
+ connected(connection);
+ if (connection.getProxy() != policy.requestedProxy) {
+ // Update the request line if the proxy changed; it may need a host name.
+ requestHeaders.getHeaders().setRequestLine(getRequestLine());
+ }
+ }
+
+ /**
+ * Called after a socket connection has been created or retrieved from the
+ * pool. Subclasses use this hook to get a reference to the TLS data.
+ */
+ protected void connected(Connection connection) {
+ }
+
+ /**
+ * Called immediately before the transport transmits HTTP request headers.
+ * This is used to observe the sent time should the request be cached.
+ */
+ public void writingRequestHeaders() {
+ if (sentRequestMillis != -1) {
+ throw new IllegalStateException();
+ }
+ sentRequestMillis = System.currentTimeMillis();
+ }
+
+ /**
+ * @param body the response body, or null if it doesn't exist or isn't
+ * available.
+ */
+ private void setResponse(ResponseHeaders headers, InputStream body) throws IOException {
+ if (this.responseBodyIn != null) {
+ throw new IllegalStateException();
+ }
+ this.responseHeaders = headers;
+ if (body != null) {
+ initContentStream(body);
+ }
+ }
+
+ boolean hasRequestBody() {
+ return method.equals("POST") || method.equals("PUT");
+ }
+
+ /** Returns the request body or null if this request doesn't have a body. */
+ public final OutputStream getRequestBody() {
+ if (responseSource == null) {
+ throw new IllegalStateException();
+ }
+ return requestBodyOut;
+ }
+
+ public final boolean hasResponse() {
+ return responseHeaders != null;
+ }
+
+ public final RequestHeaders getRequestHeaders() {
+ return requestHeaders;
+ }
+
+ public final ResponseHeaders getResponseHeaders() {
+ if (responseHeaders == null) {
+ throw new IllegalStateException();
+ }
+ return responseHeaders;
+ }
+
+ public final int getResponseCode() {
+ if (responseHeaders == null) {
+ throw new IllegalStateException();
+ }
+ return responseHeaders.getHeaders().getResponseCode();
+ }
+
+ public final InputStream getResponseBody() {
+ if (responseHeaders == null) {
+ throw new IllegalStateException();
+ }
+ return responseBodyIn;
+ }
+
+ public final CacheResponse getCacheResponse() {
+ return cacheResponse;
+ }
+
+ public final Connection getConnection() {
+ return connection;
+ }
+
+ /**
+ * Returns true if {@code cacheResponse} is of the right type. This
+ * condition is necessary but not sufficient for the cached response to
+ * be used.
+ */
+ protected boolean acceptCacheResponseType(CacheResponse cacheResponse) {
+ return true;
+ }
+
+ private void maybeCache() throws IOException {
+ // Are we caching at all?
+ if (!policy.getUseCaches() || policy.responseCache == null) {
+ return;
+ }
+
+ // Should we cache this response for this request?
+ if (!responseHeaders.isCacheable(requestHeaders)) {
+ return;
+ }
+
+ // Offer this request to the cache.
+ cacheRequest = policy.responseCache.put(uri, policy.getHttpConnectionToCache());
+ }
+
+ /**
+ * Cause the socket connection to be released to the connection pool when
+ * it is no longer needed. If it is already unneeded, it will be pooled
+ * immediately. Otherwise the connection is held so that redirects can be
+ * handled by the same connection.
+ */
+ public final void automaticallyReleaseConnectionToPool() {
+ automaticallyReleaseConnectionToPool = true;
+ if (connection != null && connectionReleased) {
+ policy.connectionPool.recycle(connection);
+ connection = null;
+ }
+ }
+
+ /**
+ * Releases this engine so that its resources may be either reused or
+ * closed. Also call {@link #automaticallyReleaseConnectionToPool} unless
+ * the connection will be used to follow a redirect.
+ */
+ public final void release(boolean streamCancelled) {
+ // If the response body comes from the cache, close it.
+ if (responseBodyIn == cachedResponseBody) {
+ Util.closeQuietly(responseBodyIn);
+ }
+
+ if (!connectionReleased && connection != null) {
+ connectionReleased = true;
+
+ if (transport == null || !transport.makeReusable(streamCancelled, requestBodyOut,
+ responseTransferIn)) {
+ Util.closeQuietly(connection);
+ connection = null;
+ } else if (automaticallyReleaseConnectionToPool) {
+ policy.connectionPool.recycle(connection);
+ connection = null;
+ }
+ }
+ }
+
+ private void initContentStream(InputStream transferStream) throws IOException {
+ responseTransferIn = transferStream;
+ if (transparentGzip && responseHeaders.isContentEncodingGzip()) {
+ // If the response was transparently gzipped, remove the gzip header field
+ // so clients don't double decompress. http://b/3009828
+ //
+ // Also remove the Content-Length in this case because it contains the
+ // length 528 of the gzipped response. This isn't terribly useful and is
+ // dangerous because 529 clients can query the content length, but not
+ // the content encoding.
+ responseHeaders.stripContentEncoding();
+ responseHeaders.stripContentLength();
+ responseBodyIn = new GZIPInputStream(transferStream);
+ } else {
+ responseBodyIn = transferStream;
+ }
+ }
+
+ /**
+ * Returns true if the response must have a (possibly 0-length) body.
+ * See RFC 2616 section 4.3.
+ */
+ public final boolean hasResponseBody() {
+ int responseCode = responseHeaders.getHeaders().getResponseCode();
+
+ // HEAD requests never yield a body regardless of the response headers.
+ if (method.equals("HEAD")) {
+ return false;
+ }
+
+ if ((responseCode < HTTP_CONTINUE || responseCode >= 200)
+ && responseCode != HttpURLConnectionImpl.HTTP_NO_CONTENT
+ && responseCode != HttpURLConnectionImpl.HTTP_NOT_MODIFIED) {
+ return true;
+ }
+
+ // If the Content-Length or Transfer-Encoding headers disagree with the
+ // response code, the response is malformed. For best compatibility, we
+ // honor the headers.
+ if (responseHeaders.getContentLength() != -1 || responseHeaders.isChunked()) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Populates requestHeaders with defaults and cookies.
+ *
+ * This client doesn't specify a default {@code Accept} header because it
+ * doesn't know what content types the application is interested in.
+ */
+ private void prepareRawRequestHeaders() throws IOException {
+ requestHeaders.getHeaders().setRequestLine(getRequestLine());
+
+ if (requestHeaders.getUserAgent() == null) {
+ requestHeaders.setUserAgent(getDefaultUserAgent());
+ }
+
+ if (requestHeaders.getHost() == null) {
+ requestHeaders.setHost(getOriginAddress(policy.getURL()));
+ }
+
+ if ((connection == null || connection.getHttpMinorVersion() != 0)
+ && requestHeaders.getConnection() == null) {
+ requestHeaders.setConnection("Keep-Alive");
+ }
+
+ if (requestHeaders.getAcceptEncoding() == null) {
+ transparentGzip = true;
+ requestHeaders.setAcceptEncoding("gzip");
+ }
+
+ if (hasRequestBody() && requestHeaders.getContentType() == null) {
+ requestHeaders.setContentType("application/x-www-form-urlencoded");
+ }
+
+ long ifModifiedSince = policy.getIfModifiedSince();
+ if (ifModifiedSince != 0) {
+ requestHeaders.setIfModifiedSince(new Date(ifModifiedSince));
+ }
+
+ CookieHandler cookieHandler = policy.cookieHandler;
+ if (cookieHandler != null) {
+ requestHeaders.addCookies(
+ cookieHandler.get(uri, requestHeaders.getHeaders().toMultimap(false)));
+ }
+ }
+
+ /**
+ * Returns the request status line, like "GET / HTTP/1.1". This is exposed
+ * to the application by {@link HttpURLConnectionImpl#getHeaderFields}, so
+ * it needs to be set even if the transport is SPDY.
+ */
+ String getRequestLine() {
+ String protocol =
+ (connection == null || connection.getHttpMinorVersion() != 0) ? "HTTP/1.1" : "HTTP/1.0";
+ return method + " " + requestString() + " " + protocol;
+ }
+
+ private String requestString() {
+ URL url = policy.getURL();
+ if (includeAuthorityInRequestLine()) {
+ return url.toString();
+ } else {
+ return requestPath(url);
+ }
+ }
+
+ /**
+ * Returns the path to request, like the '/' in 'GET / HTTP/1.1'. Never
+ * empty, even if the request URL is. Includes the query component if it
+ * exists.
+ */
+ public static String requestPath(URL url) {
+ String fileOnly = url.getFile();
+ if (fileOnly == null) {
+ return "/";
+ } else if (!fileOnly.startsWith("/")) {
+ return "/" + fileOnly;
+ } else {
+ return fileOnly;
+ }
+ }
+
+ /**
+ * Returns true if the request line should contain the full URL with host
+ * and port (like "GET http://android.com/foo HTTP/1.1") or only the path
+ * (like "GET /foo HTTP/1.1").
+ *
+ *
This is non-final because for HTTPS it's never necessary to supply the
+ * full URL, even if a proxy is in use.
+ */
+ protected boolean includeAuthorityInRequestLine() {
+ return connection == null
+ ? policy.usingProxy() // A proxy was requested.
+ : connection.getProxy().type() == Proxy.Type.HTTP; // A proxy was selected.
+ }
+
+ public static String getDefaultUserAgent() {
+ String agent = System.getProperty("http.agent");
+ return agent != null ? agent : ("Java" + System.getProperty("java.version"));
+ }
+
+ public static String getOriginAddress(URL url) {
+ int port = url.getPort();
+ String result = url.getHost();
+ if (port > 0 && port != getDefaultPort(url.getProtocol())) {
+ result = result + ":" + port;
+ }
+ return result;
+ }
+
+ /**
+ * Flushes the remaining request header and body, parses the HTTP response
+ * headers and starts reading the HTTP response body if it exists.
+ */
+ public final void readResponse() throws IOException {
+ if (hasResponse()) {
+ responseHeaders.setResponseSource(responseSource);
+ return;
+ }
+
+ if (responseSource == null) {
+ throw new IllegalStateException("readResponse() without sendRequest()");
+ }
+
+ if (!responseSource.requiresConnection()) {
+ return;
+ }
+
+ if (sentRequestMillis == -1) {
+ if (requestBodyOut instanceof RetryableOutputStream) {
+ int contentLength = ((RetryableOutputStream) requestBodyOut).contentLength();
+ requestHeaders.setContentLength(contentLength);
+ }
+ transport.writeRequestHeaders();
+ }
+
+ if (requestBodyOut != null) {
+ requestBodyOut.close();
+ if (requestBodyOut instanceof RetryableOutputStream) {
+ transport.writeRequestBody((RetryableOutputStream) requestBodyOut);
+ }
+ }
+
+ transport.flushRequest();
+
+ responseHeaders = transport.readResponseHeaders();
+ responseHeaders.setLocalTimestamps(sentRequestMillis, System.currentTimeMillis());
+ responseHeaders.setResponseSource(responseSource);
+
+ if (responseSource == ResponseSource.CONDITIONAL_CACHE) {
+ if (cachedResponseHeaders.validate(responseHeaders)) {
+ release(false);
+ ResponseHeaders combinedHeaders = cachedResponseHeaders.combine(responseHeaders);
+ setResponse(combinedHeaders, cachedResponseBody);
+ if (policy.responseCache instanceof OkResponseCache) {
+ OkResponseCache httpResponseCache = (OkResponseCache) policy.responseCache;
+ httpResponseCache.trackConditionalCacheHit();
+ httpResponseCache.update(cacheResponse, policy.getHttpConnectionToCache());
+ }
+ return;
+ } else {
+ Util.closeQuietly(cachedResponseBody);
+ }
+ }
+
+ if (hasResponseBody()) {
+ maybeCache(); // reentrant. this calls into user code which may call back into this!
+ }
+
+ initContentStream(transport.getTransferStream(cacheRequest));
+ }
+
+ protected TunnelRequest getTunnelConfig() {
+ return null;
+ }
+
+ public void receiveHeaders(RawHeaders headers) throws IOException {
+ CookieHandler cookieHandler = policy.cookieHandler;
+ if (cookieHandler != null) {
+ cookieHandler.put(uri, headers.toMultimap(true));
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HttpResponseCache.java b/framework/src/com/squareup/okhttp/internal/http/HttpResponseCache.java
new file mode 100644
index 00000000..87351669
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HttpResponseCache.java
@@ -0,0 +1,608 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.OkResponseCache;
+import com.squareup.okhttp.ResponseSource;
+import com.squareup.okhttp.internal.Base64;
+import com.squareup.okhttp.internal.DiskLruCache;
+import com.squareup.okhttp.internal.StrictLineReader;
+import com.squareup.okhttp.internal.Util;
+import java.io.BufferedWriter;
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FilterInputStream;
+import java.io.FilterOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.UnsupportedEncodingException;
+import java.io.Writer;
+import java.net.CacheRequest;
+import java.net.CacheResponse;
+import java.net.HttpURLConnection;
+import java.net.ResponseCache;
+import java.net.SecureCacheResponse;
+import java.net.URI;
+import java.net.URLConnection;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.Principal;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509Certificate;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.SSLPeerUnverifiedException;
+
+import static com.squareup.okhttp.internal.Util.US_ASCII;
+import static com.squareup.okhttp.internal.Util.UTF_8;
+
+/**
+ * Cache responses in a directory on the file system. Most clients should use
+ * {@code android.net.HttpResponseCache}, the stable, documented front end for
+ * this.
+ */
+public final class HttpResponseCache extends ResponseCache implements OkResponseCache {
+ private static final char[] DIGITS =
+ { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+
+ // TODO: add APIs to iterate the cache?
+ private static final int VERSION = 201105;
+ private static final int ENTRY_METADATA = 0;
+ private static final int ENTRY_BODY = 1;
+ private static final int ENTRY_COUNT = 2;
+
+ private final DiskLruCache cache;
+
+ /* read and write statistics, all guarded by 'this' */
+ private int writeSuccessCount;
+ private int writeAbortCount;
+ private int networkCount;
+ private int hitCount;
+ private int requestCount;
+
+ public HttpResponseCache(File directory, long maxSize) throws IOException {
+ cache = DiskLruCache.open(directory, VERSION, ENTRY_COUNT, maxSize);
+ }
+
+ private String uriToKey(URI uri) {
+ try {
+ MessageDigest messageDigest = MessageDigest.getInstance("MD5");
+ byte[] md5bytes = messageDigest.digest(uri.toString().getBytes("UTF-8"));
+ return bytesToHexString(md5bytes);
+ } catch (NoSuchAlgorithmException e) {
+ throw new AssertionError(e);
+ } catch (UnsupportedEncodingException e) {
+ throw new AssertionError(e);
+ }
+ }
+
+ private static String bytesToHexString(byte[] bytes) {
+ char[] digits = DIGITS;
+ char[] buf = new char[bytes.length * 2];
+ int c = 0;
+ for (byte b : bytes) {
+ buf[c++] = digits[(b >> 4) & 0xf];
+ buf[c++] = digits[b & 0xf];
+ }
+ return new String(buf);
+ }
+
+ @Override public CacheResponse get(URI uri, String requestMethod,
+ Map> requestHeaders) {
+ String key = uriToKey(uri);
+ DiskLruCache.Snapshot snapshot;
+ Entry entry;
+ try {
+ snapshot = cache.get(key);
+ if (snapshot == null) {
+ return null;
+ }
+ entry = new Entry(snapshot.getInputStream(ENTRY_METADATA));
+ } catch (IOException e) {
+ // Give up because the cache cannot be read.
+ return null;
+ }
+
+ if (!entry.matches(uri, requestMethod, requestHeaders)) {
+ snapshot.close();
+ return null;
+ }
+
+ return entry.isHttps() ? new EntrySecureCacheResponse(entry, snapshot)
+ : new EntryCacheResponse(entry, snapshot);
+ }
+
+ @Override public CacheRequest put(URI uri, URLConnection urlConnection) throws IOException {
+ if (!(urlConnection instanceof HttpURLConnection)) {
+ return null;
+ }
+
+ HttpURLConnection httpConnection = (HttpURLConnection) urlConnection;
+ String requestMethod = httpConnection.getRequestMethod();
+ String key = uriToKey(uri);
+
+ if (requestMethod.equals("POST") || requestMethod.equals("PUT") || requestMethod.equals(
+ "DELETE")) {
+ try {
+ cache.remove(key);
+ } catch (IOException ignored) {
+ // The cache cannot be written.
+ }
+ return null;
+ } else if (!requestMethod.equals("GET")) {
+ // Don't cache non-GET responses. We're technically allowed to cache
+ // HEAD requests and some POST requests, but the complexity of doing
+ // so is high and the benefit is low.
+ return null;
+ }
+
+ HttpEngine httpEngine = getHttpEngine(httpConnection);
+ if (httpEngine == null) {
+ // Don't cache unless the HTTP implementation is ours.
+ return null;
+ }
+
+ ResponseHeaders response = httpEngine.getResponseHeaders();
+ if (response.hasVaryAll()) {
+ return null;
+ }
+
+ RawHeaders varyHeaders =
+ httpEngine.getRequestHeaders().getHeaders().getAll(response.getVaryFields());
+ Entry entry = new Entry(uri, varyHeaders, httpConnection);
+ DiskLruCache.Editor editor = null;
+ try {
+ editor = cache.edit(key);
+ if (editor == null) {
+ return null;
+ }
+ entry.writeTo(editor);
+ return new CacheRequestImpl(editor);
+ } catch (IOException e) {
+ abortQuietly(editor);
+ return null;
+ }
+ }
+
+ /**
+ * Handles a conditional request hit by updating the stored cache response
+ * with the headers from {@code httpConnection}. The cached response body is
+ * not updated. If the stored response has changed since {@code
+ * conditionalCacheHit} was returned, this does nothing.
+ */
+ @Override public void update(CacheResponse conditionalCacheHit, HttpURLConnection httpConnection)
+ throws IOException {
+ HttpEngine httpEngine = getHttpEngine(httpConnection);
+ URI uri = httpEngine.getUri();
+ ResponseHeaders response = httpEngine.getResponseHeaders();
+ RawHeaders varyHeaders =
+ httpEngine.getRequestHeaders().getHeaders().getAll(response.getVaryFields());
+ Entry entry = new Entry(uri, varyHeaders, httpConnection);
+ DiskLruCache.Snapshot snapshot = (conditionalCacheHit instanceof EntryCacheResponse)
+ ? ((EntryCacheResponse) conditionalCacheHit).snapshot
+ : ((EntrySecureCacheResponse) conditionalCacheHit).snapshot;
+ DiskLruCache.Editor editor = null;
+ try {
+ editor = snapshot.edit(); // returns null if snapshot is not current
+ if (editor != null) {
+ entry.writeTo(editor);
+ editor.commit();
+ }
+ } catch (IOException e) {
+ abortQuietly(editor);
+ }
+ }
+
+ private void abortQuietly(DiskLruCache.Editor editor) {
+ // Give up because the cache cannot be written.
+ try {
+ if (editor != null) {
+ editor.abort();
+ }
+ } catch (IOException ignored) {
+ }
+ }
+
+ private HttpEngine getHttpEngine(URLConnection httpConnection) {
+ if (httpConnection instanceof HttpURLConnectionImpl) {
+ return ((HttpURLConnectionImpl) httpConnection).getHttpEngine();
+ } else if (httpConnection instanceof HttpsURLConnectionImpl) {
+ return ((HttpsURLConnectionImpl) httpConnection).getHttpEngine();
+ } else {
+ return null;
+ }
+ }
+
+ public DiskLruCache getCache() {
+ return cache;
+ }
+
+ public synchronized int getWriteAbortCount() {
+ return writeAbortCount;
+ }
+
+ public synchronized int getWriteSuccessCount() {
+ return writeSuccessCount;
+ }
+
+ public synchronized void trackResponse(ResponseSource source) {
+ requestCount++;
+
+ switch (source) {
+ case CACHE:
+ hitCount++;
+ break;
+ case CONDITIONAL_CACHE:
+ case NETWORK:
+ networkCount++;
+ break;
+ }
+ }
+
+ public synchronized void trackConditionalCacheHit() {
+ hitCount++;
+ }
+
+ public synchronized int getNetworkCount() {
+ return networkCount;
+ }
+
+ public synchronized int getHitCount() {
+ return hitCount;
+ }
+
+ public synchronized int getRequestCount() {
+ return requestCount;
+ }
+
+ private final class CacheRequestImpl extends CacheRequest {
+ private final DiskLruCache.Editor editor;
+ private OutputStream cacheOut;
+ private boolean done;
+ private OutputStream body;
+
+ public CacheRequestImpl(final DiskLruCache.Editor editor) throws IOException {
+ this.editor = editor;
+ this.cacheOut = editor.newOutputStream(ENTRY_BODY);
+ this.body = new FilterOutputStream(cacheOut) {
+ @Override public void close() throws IOException {
+ synchronized (HttpResponseCache.this) {
+ if (done) {
+ return;
+ }
+ done = true;
+ writeSuccessCount++;
+ }
+ super.close();
+ editor.commit();
+ }
+
+ @Override
+ public void write(byte[] buffer, int offset, int length) throws IOException {
+ // Since we don't override "write(int oneByte)", we can write directly to "out"
+ // and avoid the inefficient implementation from the FilterOutputStream.
+ out.write(buffer, offset, length);
+ }
+ };
+ }
+
+ @Override public void abort() {
+ synchronized (HttpResponseCache.this) {
+ if (done) {
+ return;
+ }
+ done = true;
+ writeAbortCount++;
+ }
+ Util.closeQuietly(cacheOut);
+ try {
+ editor.abort();
+ } catch (IOException ignored) {
+ }
+ }
+
+ @Override public OutputStream getBody() throws IOException {
+ return body;
+ }
+ }
+
+ private static final class Entry {
+ private final String uri;
+ private final RawHeaders varyHeaders;
+ private final String requestMethod;
+ private final RawHeaders responseHeaders;
+ private final String cipherSuite;
+ private final Certificate[] peerCertificates;
+ private final Certificate[] localCertificates;
+
+ /**
+ * Reads an entry from an input stream. A typical entry looks like this:
+ * {@code
+ * http://google.com/foo
+ * GET
+ * 2
+ * Accept-Language: fr-CA
+ * Accept-Charset: UTF-8
+ * HTTP/1.1 200 OK
+ * 3
+ * Content-Type: image/png
+ * Content-Length: 100
+ * Cache-Control: max-age=600
+ * }
+ *
+ * A typical HTTPS file looks like this:
+ *
{@code
+ * https://google.com/foo
+ * GET
+ * 2
+ * Accept-Language: fr-CA
+ * Accept-Charset: UTF-8
+ * HTTP/1.1 200 OK
+ * 3
+ * Content-Type: image/png
+ * Content-Length: 100
+ * Cache-Control: max-age=600
+ *
+ * AES_256_WITH_MD5
+ * 2
+ * base64-encoded peerCertificate[0]
+ * base64-encoded peerCertificate[1]
+ * -1
+ * }
+ * The file is newline separated. The first two lines are the URL and
+ * the request method. Next is the number of HTTP Vary request header
+ * lines, followed by those lines.
+ *
+ * Next is the response status line, followed by the number of HTTP
+ * response header lines, followed by those lines.
+ *
+ *
HTTPS responses also contain SSL session information. This begins
+ * with a blank line, and then a line containing the cipher suite. Next
+ * is the length of the peer certificate chain. These certificates are
+ * base64-encoded and appear each on their own line. The next line
+ * contains the length of the local certificate chain. These
+ * certificates are also base64-encoded and appear each on their own
+ * line. A length of -1 is used to encode a null array.
+ */
+ public Entry(InputStream in) throws IOException {
+ try {
+ StrictLineReader reader = new StrictLineReader(in, US_ASCII);
+ uri = reader.readLine();
+ requestMethod = reader.readLine();
+ varyHeaders = new RawHeaders();
+ int varyRequestHeaderLineCount = reader.readInt();
+ for (int i = 0; i < varyRequestHeaderLineCount; i++) {
+ varyHeaders.addLine(reader.readLine());
+ }
+
+ responseHeaders = new RawHeaders();
+ responseHeaders.setStatusLine(reader.readLine());
+ int responseHeaderLineCount = reader.readInt();
+ for (int i = 0; i < responseHeaderLineCount; i++) {
+ responseHeaders.addLine(reader.readLine());
+ }
+
+ if (isHttps()) {
+ String blank = reader.readLine();
+ if (!blank.isEmpty()) {
+ throw new IOException("expected \"\" but was \"" + blank + "\"");
+ }
+ cipherSuite = reader.readLine();
+ peerCertificates = readCertArray(reader);
+ localCertificates = readCertArray(reader);
+ } else {
+ cipherSuite = null;
+ peerCertificates = null;
+ localCertificates = null;
+ }
+ } finally {
+ in.close();
+ }
+ }
+
+ public Entry(URI uri, RawHeaders varyHeaders, HttpURLConnection httpConnection)
+ throws IOException {
+ this.uri = uri.toString();
+ this.varyHeaders = varyHeaders;
+ this.requestMethod = httpConnection.getRequestMethod();
+ this.responseHeaders = RawHeaders.fromMultimap(httpConnection.getHeaderFields(), true);
+
+ if (isHttps()) {
+ HttpsURLConnection httpsConnection = (HttpsURLConnection) httpConnection;
+ cipherSuite = httpsConnection.getCipherSuite();
+ Certificate[] peerCertificatesNonFinal = null;
+ try {
+ peerCertificatesNonFinal = httpsConnection.getServerCertificates();
+ } catch (SSLPeerUnverifiedException ignored) {
+ }
+ peerCertificates = peerCertificatesNonFinal;
+ localCertificates = httpsConnection.getLocalCertificates();
+ } else {
+ cipherSuite = null;
+ peerCertificates = null;
+ localCertificates = null;
+ }
+ }
+
+ public void writeTo(DiskLruCache.Editor editor) throws IOException {
+ OutputStream out = editor.newOutputStream(ENTRY_METADATA);
+ Writer writer = new BufferedWriter(new OutputStreamWriter(out, UTF_8));
+
+ writer.write(uri + '\n');
+ writer.write(requestMethod + '\n');
+ writer.write(Integer.toString(varyHeaders.length()) + '\n');
+ for (int i = 0; i < varyHeaders.length(); i++) {
+ writer.write(varyHeaders.getFieldName(i) + ": " + varyHeaders.getValue(i) + '\n');
+ }
+
+ writer.write(responseHeaders.getStatusLine() + '\n');
+ writer.write(Integer.toString(responseHeaders.length()) + '\n');
+ for (int i = 0; i < responseHeaders.length(); i++) {
+ writer.write(responseHeaders.getFieldName(i) + ": " + responseHeaders.getValue(i) + '\n');
+ }
+
+ if (isHttps()) {
+ writer.write('\n');
+ writer.write(cipherSuite + '\n');
+ writeCertArray(writer, peerCertificates);
+ writeCertArray(writer, localCertificates);
+ }
+ writer.close();
+ }
+
+ private boolean isHttps() {
+ return uri.startsWith("https://");
+ }
+
+ private Certificate[] readCertArray(StrictLineReader reader) throws IOException {
+ int length = reader.readInt();
+ if (length == -1) {
+ return null;
+ }
+ try {
+ CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
+ Certificate[] result = new Certificate[length];
+ for (int i = 0; i < result.length; i++) {
+ String line = reader.readLine();
+ byte[] bytes = Base64.decode(line.getBytes("US-ASCII"));
+ result[i] = certificateFactory.generateCertificate(new ByteArrayInputStream(bytes));
+ }
+ return result;
+ } catch (CertificateException e) {
+ throw new IOException(e);
+ }
+ }
+
+ private void writeCertArray(Writer writer, Certificate[] certificates) throws IOException {
+ if (certificates == null) {
+ writer.write("-1\n");
+ return;
+ }
+ try {
+ writer.write(Integer.toString(certificates.length) + '\n');
+ for (Certificate certificate : certificates) {
+ byte[] bytes = certificate.getEncoded();
+ String line = Base64.encode(bytes);
+ writer.write(line + '\n');
+ }
+ } catch (CertificateEncodingException e) {
+ throw new IOException(e);
+ }
+ }
+
+ public boolean matches(URI uri, String requestMethod,
+ Map> requestHeaders) {
+ return this.uri.equals(uri.toString())
+ && this.requestMethod.equals(requestMethod)
+ && new ResponseHeaders(uri, responseHeaders).varyMatches(varyHeaders.toMultimap(false),
+ requestHeaders);
+ }
+ }
+
+ /**
+ * Returns an input stream that reads the body of a snapshot, closing the
+ * snapshot when the stream is closed.
+ */
+ private static InputStream newBodyInputStream(final DiskLruCache.Snapshot snapshot) {
+ return new FilterInputStream(snapshot.getInputStream(ENTRY_BODY)) {
+ @Override public void close() throws IOException {
+ snapshot.close();
+ super.close();
+ }
+ };
+ }
+
+ static class EntryCacheResponse extends CacheResponse {
+ private final Entry entry;
+ private final DiskLruCache.Snapshot snapshot;
+ private final InputStream in;
+
+ public EntryCacheResponse(Entry entry, DiskLruCache.Snapshot snapshot) {
+ this.entry = entry;
+ this.snapshot = snapshot;
+ this.in = newBodyInputStream(snapshot);
+ }
+
+ @Override public Map> getHeaders() {
+ return entry.responseHeaders.toMultimap(true);
+ }
+
+ @Override public InputStream getBody() {
+ return in;
+ }
+ }
+
+ static class EntrySecureCacheResponse extends SecureCacheResponse {
+ private final Entry entry;
+ private final DiskLruCache.Snapshot snapshot;
+ private final InputStream in;
+
+ public EntrySecureCacheResponse(Entry entry, DiskLruCache.Snapshot snapshot) {
+ this.entry = entry;
+ this.snapshot = snapshot;
+ this.in = newBodyInputStream(snapshot);
+ }
+
+ @Override public Map> getHeaders() {
+ return entry.responseHeaders.toMultimap(true);
+ }
+
+ @Override public InputStream getBody() {
+ return in;
+ }
+
+ @Override public String getCipherSuite() {
+ return entry.cipherSuite;
+ }
+
+ @Override public List getServerCertificateChain()
+ throws SSLPeerUnverifiedException {
+ if (entry.peerCertificates == null || entry.peerCertificates.length == 0) {
+ throw new SSLPeerUnverifiedException(null);
+ }
+ return Arrays.asList(entry.peerCertificates.clone());
+ }
+
+ @Override public Principal getPeerPrincipal() throws SSLPeerUnverifiedException {
+ if (entry.peerCertificates == null || entry.peerCertificates.length == 0) {
+ throw new SSLPeerUnverifiedException(null);
+ }
+ return ((X509Certificate) entry.peerCertificates[0]).getSubjectX500Principal();
+ }
+
+ @Override public List getLocalCertificateChain() {
+ if (entry.localCertificates == null || entry.localCertificates.length == 0) {
+ return null;
+ }
+ return Arrays.asList(entry.localCertificates.clone());
+ }
+
+ @Override public Principal getLocalPrincipal() {
+ if (entry.localCertificates == null || entry.localCertificates.length == 0) {
+ return null;
+ }
+ return ((X509Certificate) entry.localCertificates[0]).getSubjectX500Principal();
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HttpTransport.java b/framework/src/com/squareup/okhttp/internal/http/HttpTransport.java
new file mode 100644
index 00000000..dd7a38dc
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HttpTransport.java
@@ -0,0 +1,499 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.Connection;
+import com.squareup.okhttp.internal.Util;
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.CacheRequest;
+import java.net.ProtocolException;
+import java.net.Socket;
+
+import static com.squareup.okhttp.internal.Util.checkOffsetAndCount;
+
+public final class HttpTransport implements Transport {
+ /**
+ * The maximum number of bytes to buffer when sending headers and a request
+ * body. When the headers and body can be sent in a single write, the
+ * request completes sooner. In one WiFi benchmark, using a large enough
+ * buffer sped up some uploads by half.
+ */
+ private static final int MAX_REQUEST_BUFFER_LENGTH = 32768;
+
+ /**
+ * The timeout to use while discarding a stream of input data. Since this is
+ * used for connection reuse, this timeout should be significantly less than
+ * the time it takes to establish a new connection.
+ */
+ private static final int DISCARD_STREAM_TIMEOUT_MILLIS = 100;
+
+ public static final int DEFAULT_CHUNK_LENGTH = 1024;
+
+ private final HttpEngine httpEngine;
+ private final InputStream socketIn;
+ private final OutputStream socketOut;
+
+ /**
+ * This stream buffers the request headers and the request body when their
+ * combined size is less than MAX_REQUEST_BUFFER_LENGTH. By combining them
+ * we can save socket writes, which in turn saves a packet transmission.
+ * This is socketOut if the request size is large or unknown.
+ */
+ private OutputStream requestOut;
+
+ public HttpTransport(HttpEngine httpEngine, OutputStream outputStream, InputStream inputStream) {
+ this.httpEngine = httpEngine;
+ this.socketOut = outputStream;
+ this.requestOut = outputStream;
+ this.socketIn = inputStream;
+ }
+
+ @Override public OutputStream createRequestBody() throws IOException {
+ boolean chunked = httpEngine.requestHeaders.isChunked();
+ if (!chunked
+ && httpEngine.policy.getChunkLength() > 0
+ && httpEngine.connection.getHttpMinorVersion() != 0) {
+ httpEngine.requestHeaders.setChunked();
+ chunked = true;
+ }
+
+ // Stream a request body of unknown length.
+ if (chunked) {
+ int chunkLength = httpEngine.policy.getChunkLength();
+ if (chunkLength == -1) {
+ chunkLength = DEFAULT_CHUNK_LENGTH;
+ }
+ writeRequestHeaders();
+ return new ChunkedOutputStream(requestOut, chunkLength);
+ }
+
+ // Stream a request body of a known length.
+ int fixedContentLength = httpEngine.policy.getFixedContentLength();
+ if (fixedContentLength != -1) {
+ httpEngine.requestHeaders.setContentLength(fixedContentLength);
+ writeRequestHeaders();
+ return new FixedLengthOutputStream(requestOut, fixedContentLength);
+ }
+
+ // Buffer a request body of a known length.
+ int contentLength = httpEngine.requestHeaders.getContentLength();
+ if (contentLength != -1) {
+ writeRequestHeaders();
+ return new RetryableOutputStream(contentLength);
+ }
+
+ // Buffer a request body of an unknown length. Don't write request
+ // headers until the entire body is ready; otherwise we can't set the
+ // Content-Length header correctly.
+ return new RetryableOutputStream();
+ }
+
+ @Override public void flushRequest() throws IOException {
+ requestOut.flush();
+ requestOut = socketOut;
+ }
+
+ @Override public void writeRequestBody(RetryableOutputStream requestBody) throws IOException {
+ requestBody.writeToSocket(requestOut);
+ }
+
+ /**
+ * Prepares the HTTP headers and sends them to the server.
+ *
+ * For streaming requests with a body, headers must be prepared
+ * before the output stream has been written to. Otherwise
+ * the body would need to be buffered!
+ *
+ *
For non-streaming requests with a body, headers must be prepared
+ * after the output stream has been written to and closed.
+ * This ensures that the {@code Content-Length} header field receives the
+ * proper value.
+ */
+ public void writeRequestHeaders() throws IOException {
+ httpEngine.writingRequestHeaders();
+ int contentLength = httpEngine.requestHeaders.getContentLength();
+ RawHeaders headersToSend = httpEngine.requestHeaders.getHeaders();
+ byte[] bytes = headersToSend.toBytes();
+
+ if (contentLength != -1 && bytes.length + contentLength <= MAX_REQUEST_BUFFER_LENGTH) {
+ requestOut = new BufferedOutputStream(socketOut, bytes.length + contentLength);
+ }
+
+ requestOut.write(bytes);
+ }
+
+ @Override public ResponseHeaders readResponseHeaders() throws IOException {
+ RawHeaders headers = RawHeaders.fromBytes(socketIn);
+ httpEngine.connection.setHttpMinorVersion(headers.getHttpMinorVersion());
+ httpEngine.receiveHeaders(headers);
+ return new ResponseHeaders(httpEngine.uri, headers);
+ }
+
+ public boolean makeReusable(boolean streamCancelled, OutputStream requestBodyOut,
+ InputStream responseBodyIn) {
+ if (streamCancelled) {
+ return false;
+ }
+
+ // We cannot reuse sockets that have incomplete output.
+ if (requestBodyOut != null && !((AbstractHttpOutputStream) requestBodyOut).closed) {
+ return false;
+ }
+
+ // If the request specified that the connection shouldn't be reused, don't reuse it.
+ if (httpEngine.requestHeaders.hasConnectionClose()) {
+ return false;
+ }
+
+ // If the response specified that the connection shouldn't be reused, don't reuse it.
+ if (httpEngine.responseHeaders != null && httpEngine.responseHeaders.hasConnectionClose()) {
+ return false;
+ }
+
+ if (responseBodyIn instanceof UnknownLengthHttpInputStream) {
+ return false;
+ }
+
+ if (responseBodyIn != null) {
+ return discardStream(httpEngine, responseBodyIn);
+ }
+
+ return true;
+ }
+
+ /**
+ * Discards the response body so that the connection can be reused. This
+ * needs to be done judiciously, since it delays the current request in
+ * order to speed up a potential future request that may never occur.
+ */
+ private static boolean discardStream(HttpEngine httpEngine, InputStream responseBodyIn) {
+ Connection connection = httpEngine.connection;
+ if (connection == null) return false;
+ Socket socket = connection.getSocket();
+ if (socket == null) return false;
+ try {
+ int socketTimeout = socket.getSoTimeout();
+ socket.setSoTimeout(DISCARD_STREAM_TIMEOUT_MILLIS);
+ try {
+ Util.skipAll(responseBodyIn);
+ return true;
+ } finally {
+ socket.setSoTimeout(socketTimeout);
+ }
+ } catch (IOException e) {
+ return false;
+ }
+ }
+
+ @Override public InputStream getTransferStream(CacheRequest cacheRequest) throws IOException {
+ if (!httpEngine.hasResponseBody()) {
+ return new FixedLengthInputStream(socketIn, cacheRequest, httpEngine, 0);
+ }
+
+ if (httpEngine.responseHeaders.isChunked()) {
+ return new ChunkedInputStream(socketIn, cacheRequest, this);
+ }
+
+ if (httpEngine.responseHeaders.getContentLength() != -1) {
+ return new FixedLengthInputStream(socketIn, cacheRequest, httpEngine,
+ httpEngine.responseHeaders.getContentLength());
+ }
+
+ // Wrap the input stream from the connection (rather than just returning
+ // "socketIn" directly here), so that we can control its use after the
+ // reference escapes.
+ return new UnknownLengthHttpInputStream(socketIn, cacheRequest, httpEngine);
+ }
+
+ /** An HTTP body with a fixed length known in advance. */
+ private static final class FixedLengthOutputStream extends AbstractHttpOutputStream {
+ private final OutputStream socketOut;
+ private int bytesRemaining;
+
+ private FixedLengthOutputStream(OutputStream socketOut, int bytesRemaining) {
+ this.socketOut = socketOut;
+ this.bytesRemaining = bytesRemaining;
+ }
+
+ @Override public void write(byte[] buffer, int offset, int count) throws IOException {
+ checkNotClosed();
+ checkOffsetAndCount(buffer.length, offset, count);
+ if (count > bytesRemaining) {
+ throw new ProtocolException("expected " + bytesRemaining + " bytes but received " + count);
+ }
+ socketOut.write(buffer, offset, count);
+ bytesRemaining -= count;
+ }
+
+ @Override public void flush() throws IOException {
+ if (closed) {
+ return; // don't throw; this stream might have been closed on the caller's behalf
+ }
+ socketOut.flush();
+ }
+
+ @Override public void close() throws IOException {
+ if (closed) {
+ return;
+ }
+ closed = true;
+ if (bytesRemaining > 0) {
+ throw new ProtocolException("unexpected end of stream");
+ }
+ }
+ }
+
+ /**
+ * An HTTP body with alternating chunk sizes and chunk bodies. Chunks are
+ * buffered until {@code maxChunkLength} bytes are ready, at which point the
+ * chunk is written and the buffer is cleared.
+ */
+ private static final class ChunkedOutputStream extends AbstractHttpOutputStream {
+ private static final byte[] CRLF = { '\r', '\n' };
+ private static final byte[] HEX_DIGITS = {
+ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
+ };
+ private static final byte[] FINAL_CHUNK = new byte[] { '0', '\r', '\n', '\r', '\n' };
+
+ /** Scratch space for up to 8 hex digits, and then a constant CRLF. */
+ private final byte[] hex = { 0, 0, 0, 0, 0, 0, 0, 0, '\r', '\n' };
+
+ private final OutputStream socketOut;
+ private final int maxChunkLength;
+ private final ByteArrayOutputStream bufferedChunk;
+
+ private ChunkedOutputStream(OutputStream socketOut, int maxChunkLength) {
+ this.socketOut = socketOut;
+ this.maxChunkLength = Math.max(1, dataLength(maxChunkLength));
+ this.bufferedChunk = new ByteArrayOutputStream(maxChunkLength);
+ }
+
+ /**
+ * Returns the amount of data that can be transmitted in a chunk whose total
+ * length (data+headers) is {@code dataPlusHeaderLength}. This is presumably
+ * useful to match sizes with wire-protocol packets.
+ */
+ private int dataLength(int dataPlusHeaderLength) {
+ int headerLength = 4; // "\r\n" after the size plus another "\r\n" after the data
+ for (int i = dataPlusHeaderLength - headerLength; i > 0; i >>= 4) {
+ headerLength++;
+ }
+ return dataPlusHeaderLength - headerLength;
+ }
+
+ @Override public synchronized void write(byte[] buffer, int offset, int count)
+ throws IOException {
+ checkNotClosed();
+ checkOffsetAndCount(buffer.length, offset, count);
+
+ while (count > 0) {
+ int numBytesWritten;
+
+ if (bufferedChunk.size() > 0 || count < maxChunkLength) {
+ // fill the buffered chunk and then maybe write that to the stream
+ numBytesWritten = Math.min(count, maxChunkLength - bufferedChunk.size());
+ // TODO: skip unnecessary copies from buffer->bufferedChunk?
+ bufferedChunk.write(buffer, offset, numBytesWritten);
+ if (bufferedChunk.size() == maxChunkLength) {
+ writeBufferedChunkToSocket();
+ }
+ } else {
+ // write a single chunk of size maxChunkLength to the stream
+ numBytesWritten = maxChunkLength;
+ writeHex(numBytesWritten);
+ socketOut.write(buffer, offset, numBytesWritten);
+ socketOut.write(CRLF);
+ }
+
+ offset += numBytesWritten;
+ count -= numBytesWritten;
+ }
+ }
+
+ /**
+ * Equivalent to, but cheaper than writing Integer.toHexString().getBytes()
+ * followed by CRLF.
+ */
+ private void writeHex(int i) throws IOException {
+ int cursor = 8;
+ do {
+ hex[--cursor] = HEX_DIGITS[i & 0xf];
+ } while ((i >>>= 4) != 0);
+ socketOut.write(hex, cursor, hex.length - cursor);
+ }
+
+ @Override public synchronized void flush() throws IOException {
+ if (closed) {
+ return; // don't throw; this stream might have been closed on the caller's behalf
+ }
+ writeBufferedChunkToSocket();
+ socketOut.flush();
+ }
+
+ @Override public synchronized void close() throws IOException {
+ if (closed) {
+ return;
+ }
+ closed = true;
+ writeBufferedChunkToSocket();
+ socketOut.write(FINAL_CHUNK);
+ }
+
+ private void writeBufferedChunkToSocket() throws IOException {
+ int size = bufferedChunk.size();
+ if (size <= 0) {
+ return;
+ }
+
+ writeHex(size);
+ bufferedChunk.writeTo(socketOut);
+ bufferedChunk.reset();
+ socketOut.write(CRLF);
+ }
+ }
+
+ /** An HTTP body with a fixed length specified in advance. */
+ private static class FixedLengthInputStream extends AbstractHttpInputStream {
+ private int bytesRemaining;
+
+ public FixedLengthInputStream(InputStream is, CacheRequest cacheRequest, HttpEngine httpEngine,
+ int length) throws IOException {
+ super(is, httpEngine, cacheRequest);
+ bytesRemaining = length;
+ if (bytesRemaining == 0) {
+ endOfInput(false);
+ }
+ }
+
+ @Override public int read(byte[] buffer, int offset, int count) throws IOException {
+ checkOffsetAndCount(buffer.length, offset, count);
+ checkNotClosed();
+ if (bytesRemaining == 0) {
+ return -1;
+ }
+ int read = in.read(buffer, offset, Math.min(count, bytesRemaining));
+ if (read == -1) {
+ unexpectedEndOfInput(); // the server didn't supply the promised content length
+ throw new ProtocolException("unexpected end of stream");
+ }
+ bytesRemaining -= read;
+ cacheWrite(buffer, offset, read);
+ if (bytesRemaining == 0) {
+ endOfInput(false);
+ }
+ return read;
+ }
+
+ @Override public int available() throws IOException {
+ checkNotClosed();
+ return bytesRemaining == 0 ? 0 : Math.min(in.available(), bytesRemaining);
+ }
+
+ @Override public void close() throws IOException {
+ if (closed) {
+ return;
+ }
+ if (bytesRemaining != 0 && !discardStream(httpEngine, this)) {
+ unexpectedEndOfInput();
+ }
+ closed = true;
+ }
+ }
+
+ /** An HTTP body with alternating chunk sizes and chunk bodies. */
+ private static class ChunkedInputStream extends AbstractHttpInputStream {
+ private static final int NO_CHUNK_YET = -1;
+ private final HttpTransport transport;
+ private int bytesRemainingInChunk = NO_CHUNK_YET;
+ private boolean hasMoreChunks = true;
+
+ ChunkedInputStream(InputStream is, CacheRequest cacheRequest, HttpTransport transport)
+ throws IOException {
+ super(is, transport.httpEngine, cacheRequest);
+ this.transport = transport;
+ }
+
+ @Override public int read(byte[] buffer, int offset, int count) throws IOException {
+ checkOffsetAndCount(buffer.length, offset, count);
+ checkNotClosed();
+
+ if (!hasMoreChunks) {
+ return -1;
+ }
+ if (bytesRemainingInChunk == 0 || bytesRemainingInChunk == NO_CHUNK_YET) {
+ readChunkSize();
+ if (!hasMoreChunks) {
+ return -1;
+ }
+ }
+ int read = in.read(buffer, offset, Math.min(count, bytesRemainingInChunk));
+ if (read == -1) {
+ unexpectedEndOfInput(); // the server didn't supply the promised chunk length
+ throw new IOException("unexpected end of stream");
+ }
+ bytesRemainingInChunk -= read;
+ cacheWrite(buffer, offset, read);
+ return read;
+ }
+
+ private void readChunkSize() throws IOException {
+ // read the suffix of the previous chunk
+ if (bytesRemainingInChunk != NO_CHUNK_YET) {
+ Util.readAsciiLine(in);
+ }
+ String chunkSizeString = Util.readAsciiLine(in);
+ int index = chunkSizeString.indexOf(";");
+ if (index != -1) {
+ chunkSizeString = chunkSizeString.substring(0, index);
+ }
+ try {
+ bytesRemainingInChunk = Integer.parseInt(chunkSizeString.trim(), 16);
+ } catch (NumberFormatException e) {
+ throw new ProtocolException("Expected a hex chunk size but was " + chunkSizeString);
+ }
+ if (bytesRemainingInChunk == 0) {
+ hasMoreChunks = false;
+ RawHeaders rawResponseHeaders = httpEngine.responseHeaders.getHeaders();
+ RawHeaders.readHeaders(transport.socketIn, rawResponseHeaders);
+ httpEngine.receiveHeaders(rawResponseHeaders);
+ endOfInput(false);
+ }
+ }
+
+ @Override public int available() throws IOException {
+ checkNotClosed();
+ if (!hasMoreChunks || bytesRemainingInChunk == NO_CHUNK_YET) {
+ return 0;
+ }
+ return Math.min(in.available(), bytesRemainingInChunk);
+ }
+
+ @Override public void close() throws IOException {
+ if (closed) {
+ return;
+ }
+ if (hasMoreChunks && !discardStream(httpEngine, this)) {
+ unexpectedEndOfInput();
+ }
+ closed = true;
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HttpURLConnectionImpl.java b/framework/src/com/squareup/okhttp/internal/http/HttpURLConnectionImpl.java
new file mode 100644
index 00000000..25e8c3c8
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HttpURLConnectionImpl.java
@@ -0,0 +1,502 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.Connection;
+import com.squareup.okhttp.ConnectionPool;
+import com.squareup.okhttp.OkHttpClient;
+import com.squareup.okhttp.internal.Util;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.CookieHandler;
+import java.net.HttpRetryException;
+import java.net.HttpURLConnection;
+import java.net.InetSocketAddress;
+import java.net.ProtocolException;
+import java.net.Proxy;
+import java.net.ProxySelector;
+import java.net.ResponseCache;
+import java.net.SocketPermission;
+import java.net.URL;
+import java.security.Permission;
+import java.security.cert.CertificateException;
+import java.util.List;
+import java.util.Map;
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLHandshakeException;
+import javax.net.ssl.SSLSocketFactory;
+
+import static com.squareup.okhttp.internal.Util.getEffectivePort;
+
+/**
+ * This implementation uses HttpEngine to send requests and receive responses.
+ * This class may use multiple HttpEngines to follow redirects, authentication
+ * retries, etc. to retrieve the final response body.
+ *
+ *
What does 'connected' mean?
+ * This class inherits a {@code connected} field from the superclass. That field
+ * is not used to indicate not whether this URLConnection is
+ * currently connected. Instead, it indicates whether a connection has ever been
+ * attempted. Once a connection has been attempted, certain properties (request
+ * header fields, request method, etc.) are immutable. Test the {@code
+ * connection} field on this class for null/non-null to determine of an instance
+ * is currently connected to a server.
+ */
+public class HttpURLConnectionImpl extends HttpURLConnection {
+
+ /** Numeric status code, 307: Temporary Redirect. */
+ static final int HTTP_TEMP_REDIRECT = 307;
+
+ /**
+ * How many redirects should we follow? Chrome follows 21; Firefox, curl,
+ * and wget follow 20; Safari follows 16; and HTTP/1.0 recommends 5.
+ */
+ private static final int MAX_REDIRECTS = 20;
+
+ private final boolean followProtocolRedirects;
+
+ /** The proxy requested by the client, or null for a proxy to be selected automatically. */
+ final Proxy requestedProxy;
+
+ final ProxySelector proxySelector;
+ final CookieHandler cookieHandler;
+ final ResponseCache responseCache;
+ final ConnectionPool connectionPool;
+ /* SSL configuration; necessary for HTTP requests that get redirected to HTTPS. */
+ SSLSocketFactory sslSocketFactory;
+ HostnameVerifier hostnameVerifier;
+
+ private final RawHeaders rawRequestHeaders = new RawHeaders();
+
+ private int redirectionCount;
+
+ protected IOException httpEngineFailure;
+ protected HttpEngine httpEngine;
+
+ public HttpURLConnectionImpl(URL url, OkHttpClient client) {
+ super(url);
+ this.followProtocolRedirects = client.getFollowProtocolRedirects();
+ this.requestedProxy = client.getProxy();
+ this.proxySelector = client.getProxySelector();
+ this.cookieHandler = client.getCookieHandler();
+ this.responseCache = client.getResponseCache();
+ this.connectionPool = client.getConnectionPool();
+ this.sslSocketFactory = client.getSslSocketFactory();
+ this.hostnameVerifier = client.getHostnameVerifier();
+ }
+
+ @Override public final void connect() throws IOException {
+ initHttpEngine();
+ boolean success;
+ do {
+ success = execute(false);
+ } while (!success);
+ }
+
+ @Override public final void disconnect() {
+ // Calling disconnect() before a connection exists should have no effect.
+ if (httpEngine != null) {
+ // We close the response body here instead of in
+ // HttpEngine.release because that is called when input
+ // has been completely read from the underlying socket.
+ // However the response body can be a GZIPInputStream that
+ // still has unread data.
+ if (httpEngine.hasResponse()) {
+ Util.closeQuietly(httpEngine.getResponseBody());
+ }
+ httpEngine.release(true);
+ }
+ }
+
+ /**
+ * Returns an input stream from the server in the case of error such as the
+ * requested file (txt, htm, html) is not found on the remote server.
+ */
+ @Override public final InputStream getErrorStream() {
+ try {
+ HttpEngine response = getResponse();
+ if (response.hasResponseBody() && response.getResponseCode() >= HTTP_BAD_REQUEST) {
+ return response.getResponseBody();
+ }
+ return null;
+ } catch (IOException e) {
+ return null;
+ }
+ }
+
+ /**
+ * Returns the value of the field at {@code position}. Returns null if there
+ * are fewer than {@code position} headers.
+ */
+ @Override public final String getHeaderField(int position) {
+ try {
+ return getResponse().getResponseHeaders().getHeaders().getValue(position);
+ } catch (IOException e) {
+ return null;
+ }
+ }
+
+ /**
+ * Returns the value of the field corresponding to the {@code fieldName}, or
+ * null if there is no such field. If the field has multiple values, the
+ * last value is returned.
+ */
+ @Override public final String getHeaderField(String fieldName) {
+ try {
+ RawHeaders rawHeaders = getResponse().getResponseHeaders().getHeaders();
+ return fieldName == null ? rawHeaders.getStatusLine() : rawHeaders.get(fieldName);
+ } catch (IOException e) {
+ return null;
+ }
+ }
+
+ @Override public final String getHeaderFieldKey(int position) {
+ try {
+ return getResponse().getResponseHeaders().getHeaders().getFieldName(position);
+ } catch (IOException e) {
+ return null;
+ }
+ }
+
+ @Override public final Map> getHeaderFields() {
+ try {
+ return getResponse().getResponseHeaders().getHeaders().toMultimap(true);
+ } catch (IOException e) {
+ return null;
+ }
+ }
+
+ @Override public final Map> getRequestProperties() {
+ if (connected) {
+ throw new IllegalStateException(
+ "Cannot access request header fields after connection is set");
+ }
+ return rawRequestHeaders.toMultimap(false);
+ }
+
+ @Override public final InputStream getInputStream() throws IOException {
+ if (!doInput) {
+ throw new ProtocolException("This protocol does not support input");
+ }
+
+ HttpEngine response = getResponse();
+
+ // if the requested file does not exist, throw an exception formerly the
+ // Error page from the server was returned if the requested file was
+ // text/html this has changed to return FileNotFoundException for all
+ // file types
+ if (getResponseCode() >= HTTP_BAD_REQUEST) {
+ throw new FileNotFoundException(url.toString());
+ }
+
+ InputStream result = response.getResponseBody();
+ if (result == null) {
+ throw new ProtocolException("No response body exists; responseCode=" + getResponseCode());
+ }
+ return result;
+ }
+
+ @Override public final OutputStream getOutputStream() throws IOException {
+ connect();
+
+ OutputStream result = httpEngine.getRequestBody();
+ if (result == null) {
+ throw new ProtocolException("method does not support a request body: " + method);
+ } else if (httpEngine.hasResponse()) {
+ throw new ProtocolException("cannot write request body after response has been read");
+ }
+
+ return result;
+ }
+
+ @Override public final Permission getPermission() throws IOException {
+ String hostName = getURL().getHost();
+ int hostPort = Util.getEffectivePort(getURL());
+ if (usingProxy()) {
+ InetSocketAddress proxyAddress = (InetSocketAddress) requestedProxy.address();
+ hostName = proxyAddress.getHostName();
+ hostPort = proxyAddress.getPort();
+ }
+ return new SocketPermission(hostName + ":" + hostPort, "connect, resolve");
+ }
+
+ @Override public final String getRequestProperty(String field) {
+ if (field == null) {
+ return null;
+ }
+ return rawRequestHeaders.get(field);
+ }
+
+ private void initHttpEngine() throws IOException {
+ if (httpEngineFailure != null) {
+ throw httpEngineFailure;
+ } else if (httpEngine != null) {
+ return;
+ }
+
+ connected = true;
+ try {
+ if (doOutput) {
+ if (method.equals("GET")) {
+ // they are requesting a stream to write to. This implies a POST method
+ method = "POST";
+ } else if (!method.equals("POST") && !method.equals("PUT")) {
+ // If the request method is neither POST nor PUT, then you're not writing
+ throw new ProtocolException(method + " does not support writing");
+ }
+ }
+ httpEngine = newHttpEngine(method, rawRequestHeaders, null, null);
+ } catch (IOException e) {
+ httpEngineFailure = e;
+ throw e;
+ }
+ }
+
+ protected HttpURLConnection getHttpConnectionToCache() {
+ return this;
+ }
+
+ private HttpEngine newHttpEngine(String method, RawHeaders requestHeaders,
+ Connection connection, RetryableOutputStream requestBody) throws IOException {
+ if (url.getProtocol().equals("http")) {
+ return new HttpEngine(this, method, requestHeaders, connection, requestBody);
+ } else if (url.getProtocol().equals("https")) {
+ return new HttpsURLConnectionImpl.HttpsEngine(
+ this, method, requestHeaders, connection, requestBody);
+ } else {
+ throw new AssertionError();
+ }
+ }
+
+ /**
+ * Aggressively tries to get the final HTTP response, potentially making
+ * many HTTP requests in the process in order to cope with redirects and
+ * authentication.
+ */
+ private HttpEngine getResponse() throws IOException {
+ initHttpEngine();
+
+ if (httpEngine.hasResponse()) {
+ return httpEngine;
+ }
+
+ while (true) {
+ if (!execute(true)) {
+ continue;
+ }
+
+ Retry retry = processResponseHeaders();
+ if (retry == Retry.NONE) {
+ httpEngine.automaticallyReleaseConnectionToPool();
+ return httpEngine;
+ }
+
+ // The first request was insufficient. Prepare for another...
+ String retryMethod = method;
+ OutputStream requestBody = httpEngine.getRequestBody();
+
+ // Although RFC 2616 10.3.2 specifies that a HTTP_MOVED_PERM
+ // redirect should keep the same method, Chrome, Firefox and the
+ // RI all issue GETs when following any redirect.
+ int responseCode = getResponseCode();
+ if (responseCode == HTTP_MULT_CHOICE
+ || responseCode == HTTP_MOVED_PERM
+ || responseCode == HTTP_MOVED_TEMP
+ || responseCode == HTTP_SEE_OTHER) {
+ retryMethod = "GET";
+ requestBody = null;
+ }
+
+ if (requestBody != null && !(requestBody instanceof RetryableOutputStream)) {
+ throw new HttpRetryException("Cannot retry streamed HTTP body",
+ httpEngine.getResponseCode());
+ }
+
+ if (retry == Retry.DIFFERENT_CONNECTION) {
+ httpEngine.automaticallyReleaseConnectionToPool();
+ }
+
+ httpEngine.release(false);
+
+ httpEngine = newHttpEngine(retryMethod, rawRequestHeaders, httpEngine.getConnection(),
+ (RetryableOutputStream) requestBody);
+ }
+ }
+
+ /**
+ * Sends a request and optionally reads a response. Returns true if the
+ * request was successfully executed, and false if the request can be
+ * retried. Throws an exception if the request failed permanently.
+ */
+ private boolean execute(boolean readResponse) throws IOException {
+ try {
+ httpEngine.sendRequest();
+ if (readResponse) {
+ httpEngine.readResponse();
+ }
+ return true;
+ } catch (IOException e) {
+ RouteSelector routeSelector = httpEngine.routeSelector;
+ if (routeSelector != null && httpEngine.connection != null) {
+ routeSelector.connectFailed(httpEngine.connection, e);
+ }
+ if (routeSelector == null && httpEngine.connection == null) {
+ throw e; // If we failed before finding a route or a connection, give up.
+ }
+
+ // The connection failure isn't fatal if there's another route to attempt.
+ OutputStream requestBody = httpEngine.getRequestBody();
+ if ((routeSelector == null || routeSelector.hasNext()) && isRecoverable(e) && (requestBody
+ == null || requestBody instanceof RetryableOutputStream)) {
+ httpEngine.release(true);
+ httpEngine =
+ newHttpEngine(method, rawRequestHeaders, null, (RetryableOutputStream) requestBody);
+ httpEngine.routeSelector = routeSelector; // Keep the same routeSelector.
+ return false;
+ }
+ httpEngineFailure = e;
+ throw e;
+ }
+ }
+
+ private boolean isRecoverable(IOException e) {
+ // If the problem was a CertificateException from the X509TrustManager,
+ // do not retry, we didn't have an abrupt server initiated exception.
+ boolean sslFailure =
+ e instanceof SSLHandshakeException && e.getCause() instanceof CertificateException;
+ boolean protocolFailure = e instanceof ProtocolException;
+ return !sslFailure && !protocolFailure;
+ }
+
+ HttpEngine getHttpEngine() {
+ return httpEngine;
+ }
+
+ enum Retry {
+ NONE,
+ SAME_CONNECTION,
+ DIFFERENT_CONNECTION
+ }
+
+ /**
+ * Returns the retry action to take for the current response headers. The
+ * headers, proxy and target URL or this connection may be adjusted to
+ * prepare for a follow up request.
+ */
+ private Retry processResponseHeaders() throws IOException {
+ Proxy selectedProxy = httpEngine.connection != null
+ ? httpEngine.connection.getProxy()
+ : requestedProxy;
+ final int responseCode = getResponseCode();
+ switch (responseCode) {
+ case HTTP_PROXY_AUTH:
+ if (selectedProxy.type() != Proxy.Type.HTTP) {
+ throw new ProtocolException("Received HTTP_PROXY_AUTH (407) code while not using proxy");
+ }
+ // fall-through
+ case HTTP_UNAUTHORIZED:
+ boolean credentialsFound = HttpAuthenticator.processAuthHeader(getResponseCode(),
+ httpEngine.getResponseHeaders().getHeaders(), rawRequestHeaders, selectedProxy, url);
+ return credentialsFound ? Retry.SAME_CONNECTION : Retry.NONE;
+
+ case HTTP_MULT_CHOICE:
+ case HTTP_MOVED_PERM:
+ case HTTP_MOVED_TEMP:
+ case HTTP_SEE_OTHER:
+ case HTTP_TEMP_REDIRECT:
+ if (!getInstanceFollowRedirects()) {
+ return Retry.NONE;
+ }
+ if (++redirectionCount > MAX_REDIRECTS) {
+ throw new ProtocolException("Too many redirects: " + redirectionCount);
+ }
+ if (responseCode == HTTP_TEMP_REDIRECT && !method.equals("GET") && !method.equals("HEAD")) {
+ // "If the 307 status code is received in response to a request other than GET or HEAD,
+ // the user agent MUST NOT automatically redirect the request"
+ return Retry.NONE;
+ }
+ String location = getHeaderField("Location");
+ if (location == null) {
+ return Retry.NONE;
+ }
+ URL previousUrl = url;
+ url = new URL(previousUrl, location);
+ if (!url.getProtocol().equals("https") && !url.getProtocol().equals("http")) {
+ return Retry.NONE; // Don't follow redirects to unsupported protocols.
+ }
+ boolean sameProtocol = previousUrl.getProtocol().equals(url.getProtocol());
+ if (!sameProtocol && !followProtocolRedirects) {
+ return Retry.NONE; // This client doesn't follow redirects across protocols.
+ }
+ boolean sameHost = previousUrl.getHost().equals(url.getHost());
+ boolean samePort = getEffectivePort(previousUrl) == getEffectivePort(url);
+ if (sameHost && samePort && sameProtocol) {
+ return Retry.SAME_CONNECTION;
+ } else {
+ return Retry.DIFFERENT_CONNECTION;
+ }
+
+ default:
+ return Retry.NONE;
+ }
+ }
+
+ /** @see java.net.HttpURLConnection#setFixedLengthStreamingMode(int) */
+ final int getFixedContentLength() {
+ return fixedContentLength;
+ }
+
+ /** @see java.net.HttpURLConnection#setChunkedStreamingMode(int) */
+ final int getChunkLength() {
+ return chunkLength;
+ }
+
+ @Override public final boolean usingProxy() {
+ return (requestedProxy != null && requestedProxy.type() != Proxy.Type.DIRECT);
+ }
+
+ @Override public String getResponseMessage() throws IOException {
+ return getResponse().getResponseHeaders().getHeaders().getResponseMessage();
+ }
+
+ @Override public final int getResponseCode() throws IOException {
+ return getResponse().getResponseCode();
+ }
+
+ @Override public final void setRequestProperty(String field, String newValue) {
+ if (connected) {
+ throw new IllegalStateException("Cannot set request property after connection is made");
+ }
+ if (field == null) {
+ throw new NullPointerException("field == null");
+ }
+ rawRequestHeaders.set(field, newValue);
+ }
+
+ @Override public final void addRequestProperty(String field, String value) {
+ if (connected) {
+ throw new IllegalStateException("Cannot add request property after connection is made");
+ }
+ if (field == null) {
+ throw new NullPointerException("field == null");
+ }
+ rawRequestHeaders.add(field, value);
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/HttpsURLConnectionImpl.java b/framework/src/com/squareup/okhttp/internal/http/HttpsURLConnectionImpl.java
new file mode 100644
index 00000000..c224270b
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/HttpsURLConnectionImpl.java
@@ -0,0 +1,458 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.Connection;
+import com.squareup.okhttp.OkHttpClient;
+import com.squareup.okhttp.TunnelRequest;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.CacheResponse;
+import java.net.HttpURLConnection;
+import java.net.ProtocolException;
+import java.net.SecureCacheResponse;
+import java.net.URL;
+import java.security.Permission;
+import java.security.Principal;
+import java.security.cert.Certificate;
+import java.util.List;
+import java.util.Map;
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.SSLPeerUnverifiedException;
+import javax.net.ssl.SSLSocket;
+import javax.net.ssl.SSLSocketFactory;
+
+import static com.squareup.okhttp.internal.Util.getEffectivePort;
+
+public final class HttpsURLConnectionImpl extends HttpsURLConnection {
+
+ /** HttpUrlConnectionDelegate allows reuse of HttpURLConnectionImpl. */
+ private final HttpUrlConnectionDelegate delegate;
+
+ public HttpsURLConnectionImpl(URL url, OkHttpClient client) {
+ super(url);
+ delegate = new HttpUrlConnectionDelegate(url, client);
+ }
+
+ @Override public String getCipherSuite() {
+ SecureCacheResponse cacheResponse = delegate.getSecureCacheResponse();
+ if (cacheResponse != null) {
+ return cacheResponse.getCipherSuite();
+ }
+ SSLSocket sslSocket = getSslSocket();
+ if (sslSocket != null) {
+ return sslSocket.getSession().getCipherSuite();
+ }
+ return null;
+ }
+
+ @Override public Certificate[] getLocalCertificates() {
+ SecureCacheResponse cacheResponse = delegate.getSecureCacheResponse();
+ if (cacheResponse != null) {
+ List result = cacheResponse.getLocalCertificateChain();
+ return result != null ? result.toArray(new Certificate[result.size()]) : null;
+ }
+ SSLSocket sslSocket = getSslSocket();
+ if (sslSocket != null) {
+ return sslSocket.getSession().getLocalCertificates();
+ }
+ return null;
+ }
+
+ @Override public Certificate[] getServerCertificates() throws SSLPeerUnverifiedException {
+ SecureCacheResponse cacheResponse = delegate.getSecureCacheResponse();
+ if (cacheResponse != null) {
+ List result = cacheResponse.getServerCertificateChain();
+ return result != null ? result.toArray(new Certificate[result.size()]) : null;
+ }
+ SSLSocket sslSocket = getSslSocket();
+ if (sslSocket != null) {
+ return sslSocket.getSession().getPeerCertificates();
+ }
+ return null;
+ }
+
+ @Override public Principal getPeerPrincipal() throws SSLPeerUnverifiedException {
+ SecureCacheResponse cacheResponse = delegate.getSecureCacheResponse();
+ if (cacheResponse != null) {
+ return cacheResponse.getPeerPrincipal();
+ }
+ SSLSocket sslSocket = getSslSocket();
+ if (sslSocket != null) {
+ return sslSocket.getSession().getPeerPrincipal();
+ }
+ return null;
+ }
+
+ @Override public Principal getLocalPrincipal() {
+ SecureCacheResponse cacheResponse = delegate.getSecureCacheResponse();
+ if (cacheResponse != null) {
+ return cacheResponse.getLocalPrincipal();
+ }
+ SSLSocket sslSocket = getSslSocket();
+ if (sslSocket != null) {
+ return sslSocket.getSession().getLocalPrincipal();
+ }
+ return null;
+ }
+
+ HttpEngine getHttpEngine() {
+ return delegate.getHttpEngine();
+ }
+
+ private SSLSocket getSslSocket() {
+ if (delegate.httpEngine == null || delegate.httpEngine.sentRequestMillis == -1) {
+ throw new IllegalStateException("Connection has not yet been established");
+ }
+ return delegate.httpEngine instanceof HttpsEngine
+ ? ((HttpsEngine) delegate.httpEngine).sslSocket
+ : null; // Not HTTPS! Probably an https:// to http:// redirect.
+ }
+
+ @Override
+ public void disconnect() {
+ delegate.disconnect();
+ }
+
+ @Override
+ public InputStream getErrorStream() {
+ return delegate.getErrorStream();
+ }
+
+ @Override
+ public String getRequestMethod() {
+ return delegate.getRequestMethod();
+ }
+
+ @Override
+ public int getResponseCode() throws IOException {
+ return delegate.getResponseCode();
+ }
+
+ @Override
+ public String getResponseMessage() throws IOException {
+ return delegate.getResponseMessage();
+ }
+
+ @Override
+ public void setRequestMethod(String method) throws ProtocolException {
+ delegate.setRequestMethod(method);
+ }
+
+ @Override
+ public boolean usingProxy() {
+ return delegate.usingProxy();
+ }
+
+ @Override
+ public boolean getInstanceFollowRedirects() {
+ return delegate.getInstanceFollowRedirects();
+ }
+
+ @Override
+ public void setInstanceFollowRedirects(boolean followRedirects) {
+ delegate.setInstanceFollowRedirects(followRedirects);
+ }
+
+ @Override
+ public void connect() throws IOException {
+ connected = true;
+ delegate.connect();
+ }
+
+ @Override
+ public boolean getAllowUserInteraction() {
+ return delegate.getAllowUserInteraction();
+ }
+
+ @Override
+ public Object getContent() throws IOException {
+ return delegate.getContent();
+ }
+
+ @SuppressWarnings("unchecked") // Spec does not generify
+ @Override
+ public Object getContent(Class[] types) throws IOException {
+ return delegate.getContent(types);
+ }
+
+ @Override
+ public String getContentEncoding() {
+ return delegate.getContentEncoding();
+ }
+
+ @Override
+ public int getContentLength() {
+ return delegate.getContentLength();
+ }
+
+ @Override
+ public String getContentType() {
+ return delegate.getContentType();
+ }
+
+ @Override
+ public long getDate() {
+ return delegate.getDate();
+ }
+
+ @Override
+ public boolean getDefaultUseCaches() {
+ return delegate.getDefaultUseCaches();
+ }
+
+ @Override
+ public boolean getDoInput() {
+ return delegate.getDoInput();
+ }
+
+ @Override
+ public boolean getDoOutput() {
+ return delegate.getDoOutput();
+ }
+
+ @Override
+ public long getExpiration() {
+ return delegate.getExpiration();
+ }
+
+ @Override
+ public String getHeaderField(int pos) {
+ return delegate.getHeaderField(pos);
+ }
+
+ @Override
+ public Map> getHeaderFields() {
+ return delegate.getHeaderFields();
+ }
+
+ @Override
+ public Map> getRequestProperties() {
+ return delegate.getRequestProperties();
+ }
+
+ @Override
+ public void addRequestProperty(String field, String newValue) {
+ delegate.addRequestProperty(field, newValue);
+ }
+
+ @Override
+ public String getHeaderField(String key) {
+ return delegate.getHeaderField(key);
+ }
+
+ @Override
+ public long getHeaderFieldDate(String field, long defaultValue) {
+ return delegate.getHeaderFieldDate(field, defaultValue);
+ }
+
+ @Override
+ public int getHeaderFieldInt(String field, int defaultValue) {
+ return delegate.getHeaderFieldInt(field, defaultValue);
+ }
+
+ @Override
+ public String getHeaderFieldKey(int position) {
+ return delegate.getHeaderFieldKey(position);
+ }
+
+ @Override
+ public long getIfModifiedSince() {
+ return delegate.getIfModifiedSince();
+ }
+
+ @Override
+ public InputStream getInputStream() throws IOException {
+ return delegate.getInputStream();
+ }
+
+ @Override
+ public long getLastModified() {
+ return delegate.getLastModified();
+ }
+
+ @Override
+ public OutputStream getOutputStream() throws IOException {
+ return delegate.getOutputStream();
+ }
+
+ @Override
+ public Permission getPermission() throws IOException {
+ return delegate.getPermission();
+ }
+
+ @Override
+ public String getRequestProperty(String field) {
+ return delegate.getRequestProperty(field);
+ }
+
+ @Override
+ public URL getURL() {
+ return delegate.getURL();
+ }
+
+ @Override
+ public boolean getUseCaches() {
+ return delegate.getUseCaches();
+ }
+
+ @Override
+ public void setAllowUserInteraction(boolean newValue) {
+ delegate.setAllowUserInteraction(newValue);
+ }
+
+ @Override
+ public void setDefaultUseCaches(boolean newValue) {
+ delegate.setDefaultUseCaches(newValue);
+ }
+
+ @Override
+ public void setDoInput(boolean newValue) {
+ delegate.setDoInput(newValue);
+ }
+
+ @Override
+ public void setDoOutput(boolean newValue) {
+ delegate.setDoOutput(newValue);
+ }
+
+ @Override
+ public void setIfModifiedSince(long newValue) {
+ delegate.setIfModifiedSince(newValue);
+ }
+
+ @Override
+ public void setRequestProperty(String field, String newValue) {
+ delegate.setRequestProperty(field, newValue);
+ }
+
+ @Override
+ public void setUseCaches(boolean newValue) {
+ delegate.setUseCaches(newValue);
+ }
+
+ @Override
+ public void setConnectTimeout(int timeoutMillis) {
+ delegate.setConnectTimeout(timeoutMillis);
+ }
+
+ @Override
+ public int getConnectTimeout() {
+ return delegate.getConnectTimeout();
+ }
+
+ @Override
+ public void setReadTimeout(int timeoutMillis) {
+ delegate.setReadTimeout(timeoutMillis);
+ }
+
+ @Override
+ public int getReadTimeout() {
+ return delegate.getReadTimeout();
+ }
+
+ @Override
+ public String toString() {
+ return delegate.toString();
+ }
+
+ @Override
+ public void setFixedLengthStreamingMode(int contentLength) {
+ delegate.setFixedLengthStreamingMode(contentLength);
+ }
+
+ @Override
+ public void setChunkedStreamingMode(int chunkLength) {
+ delegate.setChunkedStreamingMode(chunkLength);
+ }
+
+ @Override public void setHostnameVerifier(HostnameVerifier hostnameVerifier) {
+ delegate.hostnameVerifier = hostnameVerifier;
+ }
+
+ @Override public HostnameVerifier getHostnameVerifier() {
+ return delegate.hostnameVerifier;
+ }
+
+ @Override public void setSSLSocketFactory(SSLSocketFactory sslSocketFactory) {
+ delegate.sslSocketFactory = sslSocketFactory;
+ }
+
+ @Override public SSLSocketFactory getSSLSocketFactory() {
+ return delegate.sslSocketFactory;
+ }
+
+ private final class HttpUrlConnectionDelegate extends HttpURLConnectionImpl {
+ private HttpUrlConnectionDelegate(URL url, OkHttpClient client) {
+ super(url, client);
+ }
+
+ @Override protected HttpURLConnection getHttpConnectionToCache() {
+ return HttpsURLConnectionImpl.this;
+ }
+
+ public SecureCacheResponse getSecureCacheResponse() {
+ return httpEngine instanceof HttpsEngine
+ ? (SecureCacheResponse) httpEngine.getCacheResponse()
+ : null;
+ }
+ }
+
+ public static final class HttpsEngine extends HttpEngine {
+ /**
+ * Stash of HttpsEngine.connection.socket to implement requests like
+ * {@link #getCipherSuite} even after the connection has been recycled.
+ */
+ private SSLSocket sslSocket;
+
+ /**
+ * @param policy the HttpURLConnectionImpl with connection configuration
+ */
+ public HttpsEngine(HttpURLConnectionImpl policy, String method, RawHeaders requestHeaders,
+ Connection connection, RetryableOutputStream requestBody)
+ throws IOException {
+ super(policy, method, requestHeaders, connection, requestBody);
+ this.sslSocket = connection != null ? (SSLSocket) connection.getSocket() : null;
+ }
+
+ @Override protected void connected(Connection connection) {
+ this.sslSocket = (SSLSocket) connection.getSocket();
+ }
+
+ @Override protected boolean acceptCacheResponseType(CacheResponse cacheResponse) {
+ return cacheResponse instanceof SecureCacheResponse;
+ }
+
+ @Override protected boolean includeAuthorityInRequestLine() {
+ // Even if there is a proxy, it isn't involved. Always request just the file.
+ return false;
+ }
+
+ @Override protected TunnelRequest getTunnelConfig() {
+ String userAgent = requestHeaders.getUserAgent();
+ if (userAgent == null) {
+ userAgent = getDefaultUserAgent();
+ }
+
+ URL url = policy.getURL();
+ return new TunnelRequest(url.getHost(), getEffectivePort(url), userAgent,
+ requestHeaders.getProxyAuthorization());
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/RawHeaders.java b/framework/src/com/squareup/okhttp/internal/http/RawHeaders.java
new file mode 100644
index 00000000..c121abce
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/RawHeaders.java
@@ -0,0 +1,429 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.internal.Platform;
+import com.squareup.okhttp.internal.Util;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.ProtocolException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.TreeMap;
+
+/**
+ * The HTTP status and unparsed header fields of a single HTTP message. Values
+ * are represented as uninterpreted strings; use {@link RequestHeaders} and
+ * {@link ResponseHeaders} for interpreted headers. This class maintains the
+ * order of the header fields within the HTTP message.
+ *
+ * This class tracks fields line-by-line. A field with multiple comma-
+ * separated values on the same line will be treated as a field with a single
+ * value by this class. It is the caller's responsibility to detect and split
+ * on commas if their field permits multiple values. This simplifies use of
+ * single-valued fields whose values routinely contain commas, such as cookies
+ * or dates.
+ *
+ *
This class trims whitespace from values. It never returns values with
+ * leading or trailing whitespace.
+ */
+public final class RawHeaders {
+ private static final Comparator FIELD_NAME_COMPARATOR = new Comparator() {
+ // @FindBugsSuppressWarnings("ES_COMPARING_PARAMETER_STRING_WITH_EQ")
+ @Override public int compare(String a, String b) {
+ if (a == b) {
+ return 0;
+ } else if (a == null) {
+ return -1;
+ } else if (b == null) {
+ return 1;
+ } else {
+ return String.CASE_INSENSITIVE_ORDER.compare(a, b);
+ }
+ }
+ };
+
+ private final List namesAndValues = new ArrayList(20);
+ private String requestLine;
+ private String statusLine;
+ private int httpMinorVersion = 1;
+ private int responseCode = -1;
+ private String responseMessage;
+
+ public RawHeaders() {
+ }
+
+ public RawHeaders(RawHeaders copyFrom) {
+ namesAndValues.addAll(copyFrom.namesAndValues);
+ requestLine = copyFrom.requestLine;
+ statusLine = copyFrom.statusLine;
+ httpMinorVersion = copyFrom.httpMinorVersion;
+ responseCode = copyFrom.responseCode;
+ responseMessage = copyFrom.responseMessage;
+ }
+
+ /** Sets the request line (like "GET / HTTP/1.1"). */
+ public void setRequestLine(String requestLine) {
+ requestLine = requestLine.trim();
+ this.requestLine = requestLine;
+ }
+
+ /** Sets the response status line (like "HTTP/1.0 200 OK"). */
+ public void setStatusLine(String statusLine) throws IOException {
+ // H T T P / 1 . 1 2 0 0 T e m p o r a r y R e d i r e c t
+ // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
+ if (this.responseMessage != null) {
+ throw new IllegalStateException("statusLine is already set");
+ }
+ // We allow empty message without leading white space since some servers
+ // do not send the white space when the message is empty.
+ boolean hasMessage = statusLine.length() > 13;
+ if (!statusLine.startsWith("HTTP/1.")
+ || statusLine.length() < 12
+ || statusLine.charAt(8) != ' '
+ || (hasMessage && statusLine.charAt(12) != ' ')) {
+ throw new ProtocolException("Unexpected status line: " + statusLine);
+ }
+ int httpMinorVersion = statusLine.charAt(7) - '0';
+ if (httpMinorVersion < 0 || httpMinorVersion > 9) {
+ throw new ProtocolException("Unexpected status line: " + statusLine);
+ }
+ int responseCode;
+ try {
+ responseCode = Integer.parseInt(statusLine.substring(9, 12));
+ } catch (NumberFormatException e) {
+ throw new ProtocolException("Unexpected status line: " + statusLine);
+ }
+ this.responseMessage = hasMessage ? statusLine.substring(13) : "";
+ this.responseCode = responseCode;
+ this.statusLine = statusLine;
+ this.httpMinorVersion = httpMinorVersion;
+ }
+
+ public void computeResponseStatusLineFromSpdyHeaders() throws IOException {
+ String status = null;
+ String version = null;
+ for (int i = 0; i < namesAndValues.size(); i += 2) {
+ String name = namesAndValues.get(i);
+ if (":status".equals(name)) {
+ status = namesAndValues.get(i + 1);
+ } else if (":version".equals(name)) {
+ version = namesAndValues.get(i + 1);
+ }
+ }
+ if (status == null || version == null) {
+ throw new ProtocolException("Expected ':status' and ':version' headers not present");
+ }
+ setStatusLine(version + " " + status);
+ }
+
+ /**
+ * @param method like "GET", "POST", "HEAD", etc.
+ * @param path like "/foo/bar.html"
+ * @param version like "HTTP/1.1"
+ * @param host like "www.android.com:1234"
+ * @param scheme like "https"
+ */
+ public void addSpdyRequestHeaders(String method, String path, String version, String host,
+ String scheme) {
+ // TODO: populate the statusLine for the client's benefit?
+ add(":method", method);
+ add(":scheme", scheme);
+ add(":path", path);
+ add(":version", version);
+ add(":host", host);
+ }
+
+ public String getStatusLine() {
+ return statusLine;
+ }
+
+ /**
+ * Returns the status line's HTTP minor version. This returns 0 for HTTP/1.0
+ * and 1 for HTTP/1.1. This returns 1 if the HTTP version is unknown.
+ */
+ public int getHttpMinorVersion() {
+ return httpMinorVersion != -1 ? httpMinorVersion : 1;
+ }
+
+ /** Returns the HTTP status code or -1 if it is unknown. */
+ public int getResponseCode() {
+ return responseCode;
+ }
+
+ /** Returns the HTTP status message or null if it is unknown. */
+ public String getResponseMessage() {
+ return responseMessage;
+ }
+
+ /**
+ * Add an HTTP header line containing a field name, a literal colon, and a
+ * value.
+ */
+ public void addLine(String line) {
+ int index = line.indexOf(":");
+ if (index == -1) {
+ add("", line);
+ } else {
+ add(line.substring(0, index), line.substring(index + 1));
+ }
+ }
+
+ /** Add a field with the specified value. */
+ public void add(String fieldName, String value) {
+ if (fieldName == null) {
+ throw new IllegalArgumentException("fieldName == null");
+ }
+ if (value == null) {
+ // Given null values, the RI sends a malformed field line like
+ // "Accept\r\n". For platform compatibility and HTTP compliance, we
+ // print a warning and ignore null values.
+ Platform.get()
+ .logW("Ignoring HTTP header field '" + fieldName + "' because its value is null");
+ return;
+ }
+ namesAndValues.add(fieldName);
+ namesAndValues.add(value.trim());
+ }
+
+ public void removeAll(String fieldName) {
+ for (int i = 0; i < namesAndValues.size(); i += 2) {
+ if (fieldName.equalsIgnoreCase(namesAndValues.get(i))) {
+ namesAndValues.remove(i); // field name
+ namesAndValues.remove(i); // value
+ }
+ }
+ }
+
+ public void addAll(String fieldName, List headerFields) {
+ for (String value : headerFields) {
+ add(fieldName, value);
+ }
+ }
+
+ /**
+ * Set a field with the specified value. If the field is not found, it is
+ * added. If the field is found, the existing values are replaced.
+ */
+ public void set(String fieldName, String value) {
+ removeAll(fieldName);
+ add(fieldName, value);
+ }
+
+ /** Returns the number of field values. */
+ public int length() {
+ return namesAndValues.size() / 2;
+ }
+
+ /** Returns the field at {@code position} or null if that is out of range. */
+ public String getFieldName(int index) {
+ int fieldNameIndex = index * 2;
+ if (fieldNameIndex < 0 || fieldNameIndex >= namesAndValues.size()) {
+ return null;
+ }
+ return namesAndValues.get(fieldNameIndex);
+ }
+
+ /** Returns the value at {@code index} or null if that is out of range. */
+ public String getValue(int index) {
+ int valueIndex = index * 2 + 1;
+ if (valueIndex < 0 || valueIndex >= namesAndValues.size()) {
+ return null;
+ }
+ return namesAndValues.get(valueIndex);
+ }
+
+ /** Returns the last value corresponding to the specified field, or null. */
+ public String get(String fieldName) {
+ for (int i = namesAndValues.size() - 2; i >= 0; i -= 2) {
+ if (fieldName.equalsIgnoreCase(namesAndValues.get(i))) {
+ return namesAndValues.get(i + 1);
+ }
+ }
+ return null;
+ }
+
+ /** @param fieldNames a case-insensitive set of HTTP header field names. */
+ public RawHeaders getAll(Set fieldNames) {
+ RawHeaders result = new RawHeaders();
+ for (int i = 0; i < namesAndValues.size(); i += 2) {
+ String fieldName = namesAndValues.get(i);
+ if (fieldNames.contains(fieldName)) {
+ result.add(fieldName, namesAndValues.get(i + 1));
+ }
+ }
+ return result;
+ }
+
+ /** Returns bytes of a request header for sending on an HTTP transport. */
+ public byte[] toBytes() throws UnsupportedEncodingException {
+ StringBuilder result = new StringBuilder(256);
+ result.append(requestLine).append("\r\n");
+ for (int i = 0; i < namesAndValues.size(); i += 2) {
+ result.append(namesAndValues.get(i))
+ .append(": ")
+ .append(namesAndValues.get(i + 1))
+ .append("\r\n");
+ }
+ result.append("\r\n");
+ return result.toString().getBytes("ISO-8859-1");
+ }
+
+ /** Parses bytes of a response header from an HTTP transport. */
+ public static RawHeaders fromBytes(InputStream in) throws IOException {
+ RawHeaders headers;
+ do {
+ headers = new RawHeaders();
+ headers.setStatusLine(Util.readAsciiLine(in));
+ readHeaders(in, headers);
+ } while (headers.getResponseCode() == HttpEngine.HTTP_CONTINUE);
+ return headers;
+ }
+
+ /** Reads headers or trailers into {@code out}. */
+ public static void readHeaders(InputStream in, RawHeaders out) throws IOException {
+ // parse the result headers until the first blank line
+ String line;
+ while ((line = Util.readAsciiLine(in)).length() != 0) {
+ out.addLine(line);
+ }
+ }
+
+ /**
+ * Returns an immutable map containing each field to its list of values. The
+ * status line is mapped to null.
+ */
+ public Map> toMultimap(boolean response) {
+ Map> result = new TreeMap>(FIELD_NAME_COMPARATOR);
+ for (int i = 0; i < namesAndValues.size(); i += 2) {
+ String fieldName = namesAndValues.get(i);
+ String value = namesAndValues.get(i + 1);
+
+ List allValues = new ArrayList();
+ List otherValues = result.get(fieldName);
+ if (otherValues != null) {
+ allValues.addAll(otherValues);
+ }
+ allValues.add(value);
+ result.put(fieldName, Collections.unmodifiableList(allValues));
+ }
+ if (response && statusLine != null) {
+ result.put(null, Collections.unmodifiableList(Collections.singletonList(statusLine)));
+ } else if (requestLine != null) {
+ result.put(null, Collections.unmodifiableList(Collections.singletonList(requestLine)));
+ }
+ return Collections.unmodifiableMap(result);
+ }
+
+ /**
+ * Creates a new instance from the given map of fields to values. If
+ * present, the null field's last element will be used to set the status
+ * line.
+ */
+ public static RawHeaders fromMultimap(Map> map, boolean response)
+ throws IOException {
+ if (!response) throw new UnsupportedOperationException();
+ RawHeaders result = new RawHeaders();
+ for (Entry> entry : map.entrySet()) {
+ String fieldName = entry.getKey();
+ List values = entry.getValue();
+ if (fieldName != null) {
+ result.addAll(fieldName, values);
+ } else if (!values.isEmpty()) {
+ result.setStatusLine(values.get(values.size() - 1));
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Returns a list of alternating names and values. Names are all lower case.
+ * No names are repeated. If any name has multiple values, they are
+ * concatenated using "\0" as a delimiter.
+ */
+ public List toNameValueBlock() {
+ Set names = new HashSet();
+ List result = new ArrayList();
+ for (int i = 0; i < namesAndValues.size(); i += 2) {
+ String name = namesAndValues.get(i).toLowerCase(Locale.US);
+ String value = namesAndValues.get(i + 1);
+
+ // TODO: promote this check to where names and values are created
+ if (name.length() == 0
+ || value.length() == 0
+ || name.indexOf('\0') != -1
+ || value.indexOf('\0') != -1) {
+ throw new IllegalArgumentException("Unexpected header: " + name + ": " + value);
+ }
+
+ // Drop headers that are forbidden when layering HTTP over SPDY.
+ if (name.equals("connection")
+ || name.equals("host")
+ || name.equals("keep-alive")
+ || name.equals("proxy-connection")
+ || name.equals("transfer-encoding")) {
+ continue;
+ }
+
+ // If we haven't seen this name before, add the pair to the end of the list...
+ if (names.add(name)) {
+ result.add(name);
+ result.add(value);
+ continue;
+ }
+
+ // ...otherwise concatenate the existing values and this value.
+ for (int j = 0; j < result.size(); j += 2) {
+ if (name.equals(result.get(j))) {
+ result.set(j + 1, result.get(j + 1) + "\0" + value);
+ break;
+ }
+ }
+ }
+ return result;
+ }
+
+ public static RawHeaders fromNameValueBlock(List nameValueBlock) {
+ if (nameValueBlock.size() % 2 != 0) {
+ throw new IllegalArgumentException("Unexpected name value block: " + nameValueBlock);
+ }
+ RawHeaders result = new RawHeaders();
+ for (int i = 0; i < nameValueBlock.size(); i += 2) {
+ String name = nameValueBlock.get(i);
+ String values = nameValueBlock.get(i + 1);
+ for (int start = 0; start < values.length(); ) {
+ int end = values.indexOf('\0', start);
+ if (end == -1) {
+ end = values.length();
+ }
+ result.namesAndValues.add(name);
+ result.namesAndValues.add(values.substring(start, end));
+ start = end + 1;
+ }
+ }
+ return result;
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/RequestHeaders.java b/framework/src/com/squareup/okhttp/internal/http/RequestHeaders.java
new file mode 100644
index 00000000..2544ceed
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/RequestHeaders.java
@@ -0,0 +1,290 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import java.net.URI;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+
+/** Parsed HTTP request headers. */
+final class RequestHeaders {
+ private final URI uri;
+ private final RawHeaders headers;
+
+ /** Don't use a cache to satisfy this request. */
+ private boolean noCache;
+ private int maxAgeSeconds = -1;
+ private int maxStaleSeconds = -1;
+ private int minFreshSeconds = -1;
+
+ /**
+ * This field's name "only-if-cached" is misleading. It actually means "do
+ * not use the network". It is set by a client who only wants to make a
+ * request if it can be fully satisfied by the cache. Cached responses that
+ * would require validation (ie. conditional gets) are not permitted if this
+ * header is set.
+ */
+ private boolean onlyIfCached;
+
+ /**
+ * True if the request contains an authorization field. Although this isn't
+ * necessarily a shared cache, it follows the spec's strict requirements for
+ * shared caches.
+ */
+ private boolean hasAuthorization;
+
+ private int contentLength = -1;
+ private String transferEncoding;
+ private String userAgent;
+ private String host;
+ private String connection;
+ private String acceptEncoding;
+ private String contentType;
+ private String ifModifiedSince;
+ private String ifNoneMatch;
+ private String proxyAuthorization;
+
+ public RequestHeaders(URI uri, RawHeaders headers) {
+ this.uri = uri;
+ this.headers = headers;
+
+ HeaderParser.CacheControlHandler handler = new HeaderParser.CacheControlHandler() {
+ @Override public void handle(String directive, String parameter) {
+ if ("no-cache".equalsIgnoreCase(directive)) {
+ noCache = true;
+ } else if ("max-age".equalsIgnoreCase(directive)) {
+ maxAgeSeconds = HeaderParser.parseSeconds(parameter);
+ } else if ("max-stale".equalsIgnoreCase(directive)) {
+ maxStaleSeconds = HeaderParser.parseSeconds(parameter);
+ } else if ("min-fresh".equalsIgnoreCase(directive)) {
+ minFreshSeconds = HeaderParser.parseSeconds(parameter);
+ } else if ("only-if-cached".equalsIgnoreCase(directive)) {
+ onlyIfCached = true;
+ }
+ }
+ };
+
+ for (int i = 0; i < headers.length(); i++) {
+ String fieldName = headers.getFieldName(i);
+ String value = headers.getValue(i);
+ if ("Cache-Control".equalsIgnoreCase(fieldName)) {
+ HeaderParser.parseCacheControl(value, handler);
+ } else if ("Pragma".equalsIgnoreCase(fieldName)) {
+ if ("no-cache".equalsIgnoreCase(value)) {
+ noCache = true;
+ }
+ } else if ("If-None-Match".equalsIgnoreCase(fieldName)) {
+ ifNoneMatch = value;
+ } else if ("If-Modified-Since".equalsIgnoreCase(fieldName)) {
+ ifModifiedSince = value;
+ } else if ("Authorization".equalsIgnoreCase(fieldName)) {
+ hasAuthorization = true;
+ } else if ("Content-Length".equalsIgnoreCase(fieldName)) {
+ try {
+ contentLength = Integer.parseInt(value);
+ } catch (NumberFormatException ignored) {
+ }
+ } else if ("Transfer-Encoding".equalsIgnoreCase(fieldName)) {
+ transferEncoding = value;
+ } else if ("User-Agent".equalsIgnoreCase(fieldName)) {
+ userAgent = value;
+ } else if ("Host".equalsIgnoreCase(fieldName)) {
+ host = value;
+ } else if ("Connection".equalsIgnoreCase(fieldName)) {
+ connection = value;
+ } else if ("Accept-Encoding".equalsIgnoreCase(fieldName)) {
+ acceptEncoding = value;
+ } else if ("Content-Type".equalsIgnoreCase(fieldName)) {
+ contentType = value;
+ } else if ("Proxy-Authorization".equalsIgnoreCase(fieldName)) {
+ proxyAuthorization = value;
+ }
+ }
+ }
+
+ public boolean isChunked() {
+ return "chunked".equalsIgnoreCase(transferEncoding);
+ }
+
+ public boolean hasConnectionClose() {
+ return "close".equalsIgnoreCase(connection);
+ }
+
+ public URI getUri() {
+ return uri;
+ }
+
+ public RawHeaders getHeaders() {
+ return headers;
+ }
+
+ public boolean isNoCache() {
+ return noCache;
+ }
+
+ public int getMaxAgeSeconds() {
+ return maxAgeSeconds;
+ }
+
+ public int getMaxStaleSeconds() {
+ return maxStaleSeconds;
+ }
+
+ public int getMinFreshSeconds() {
+ return minFreshSeconds;
+ }
+
+ public boolean isOnlyIfCached() {
+ return onlyIfCached;
+ }
+
+ public boolean hasAuthorization() {
+ return hasAuthorization;
+ }
+
+ public int getContentLength() {
+ return contentLength;
+ }
+
+ public String getTransferEncoding() {
+ return transferEncoding;
+ }
+
+ public String getUserAgent() {
+ return userAgent;
+ }
+
+ public String getHost() {
+ return host;
+ }
+
+ public String getConnection() {
+ return connection;
+ }
+
+ public String getAcceptEncoding() {
+ return acceptEncoding;
+ }
+
+ public String getContentType() {
+ return contentType;
+ }
+
+ public String getIfModifiedSince() {
+ return ifModifiedSince;
+ }
+
+ public String getIfNoneMatch() {
+ return ifNoneMatch;
+ }
+
+ public String getProxyAuthorization() {
+ return proxyAuthorization;
+ }
+
+ public void setChunked() {
+ if (this.transferEncoding != null) {
+ headers.removeAll("Transfer-Encoding");
+ }
+ headers.add("Transfer-Encoding", "chunked");
+ this.transferEncoding = "chunked";
+ }
+
+ public void setContentLength(int contentLength) {
+ if (this.contentLength != -1) {
+ headers.removeAll("Content-Length");
+ }
+ headers.add("Content-Length", Integer.toString(contentLength));
+ this.contentLength = contentLength;
+ }
+
+ public void setUserAgent(String userAgent) {
+ if (this.userAgent != null) {
+ headers.removeAll("User-Agent");
+ }
+ headers.add("User-Agent", userAgent);
+ this.userAgent = userAgent;
+ }
+
+ public void setHost(String host) {
+ if (this.host != null) {
+ headers.removeAll("Host");
+ }
+ headers.add("Host", host);
+ this.host = host;
+ }
+
+ public void setConnection(String connection) {
+ if (this.connection != null) {
+ headers.removeAll("Connection");
+ }
+ headers.add("Connection", connection);
+ this.connection = connection;
+ }
+
+ public void setAcceptEncoding(String acceptEncoding) {
+ if (this.acceptEncoding != null) {
+ headers.removeAll("Accept-Encoding");
+ }
+ headers.add("Accept-Encoding", acceptEncoding);
+ this.acceptEncoding = acceptEncoding;
+ }
+
+ public void setContentType(String contentType) {
+ if (this.contentType != null) {
+ headers.removeAll("Content-Type");
+ }
+ headers.add("Content-Type", contentType);
+ this.contentType = contentType;
+ }
+
+ public void setIfModifiedSince(Date date) {
+ if (ifModifiedSince != null) {
+ headers.removeAll("If-Modified-Since");
+ }
+ String formattedDate = HttpDate.format(date);
+ headers.add("If-Modified-Since", formattedDate);
+ ifModifiedSince = formattedDate;
+ }
+
+ public void setIfNoneMatch(String ifNoneMatch) {
+ if (this.ifNoneMatch != null) {
+ headers.removeAll("If-None-Match");
+ }
+ headers.add("If-None-Match", ifNoneMatch);
+ this.ifNoneMatch = ifNoneMatch;
+ }
+
+ /**
+ * Returns true if the request contains conditions that save the server from
+ * sending a response that the client has locally. When the caller adds
+ * conditions, this cache won't participate in the request.
+ */
+ public boolean hasConditions() {
+ return ifModifiedSince != null || ifNoneMatch != null;
+ }
+
+ public void addCookies(Map> allCookieHeaders) {
+ for (Map.Entry> entry : allCookieHeaders.entrySet()) {
+ String key = entry.getKey();
+ if ("Cookie".equalsIgnoreCase(key) || "Cookie2".equalsIgnoreCase(key)) {
+ headers.addAll(key, entry.getValue());
+ }
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/ResponseHeaders.java b/framework/src/com/squareup/okhttp/internal/http/ResponseHeaders.java
new file mode 100644
index 00000000..22d8c5c3
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/ResponseHeaders.java
@@ -0,0 +1,496 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.ResponseSource;
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URI;
+import java.util.Collections;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.concurrent.TimeUnit;
+
+import static com.squareup.okhttp.internal.Util.equal;
+
+/** Parsed HTTP response headers. */
+final class ResponseHeaders {
+
+ /** HTTP header name for the local time when the request was sent. */
+ private static final String SENT_MILLIS = "X-Android-Sent-Millis";
+
+ /** HTTP header name for the local time when the response was received. */
+ private static final String RECEIVED_MILLIS = "X-Android-Received-Millis";
+
+ /** HTTP synthetic header with the response source. */
+ static final String RESPONSE_SOURCE = "X-Android-Response-Source";
+
+ private final URI uri;
+ private final RawHeaders headers;
+
+ /** The server's time when this response was served, if known. */
+ private Date servedDate;
+
+ /** The last modified date of the response, if known. */
+ private Date lastModified;
+
+ /**
+ * The expiration date of the response, if known. If both this field and the
+ * max age are set, the max age is preferred.
+ */
+ private Date expires;
+
+ /**
+ * Extension header set by HttpURLConnectionImpl specifying the timestamp
+ * when the HTTP request was first initiated.
+ */
+ private long sentRequestMillis;
+
+ /**
+ * Extension header set by HttpURLConnectionImpl specifying the timestamp
+ * when the HTTP response was first received.
+ */
+ private long receivedResponseMillis;
+
+ /**
+ * In the response, this field's name "no-cache" is misleading. It doesn't
+ * prevent us from caching the response; it only means we have to validate
+ * the response with the origin server before returning it. We can do this
+ * with a conditional get.
+ */
+ private boolean noCache;
+
+ /** If true, this response should not be cached. */
+ private boolean noStore;
+
+ /**
+ * The duration past the response's served date that it can be served
+ * without validation.
+ */
+ private int maxAgeSeconds = -1;
+
+ /**
+ * The "s-maxage" directive is the max age for shared caches. Not to be
+ * confused with "max-age" for non-shared caches, As in Firefox and Chrome,
+ * this directive is not honored by this cache.
+ */
+ private int sMaxAgeSeconds = -1;
+
+ /**
+ * This request header field's name "only-if-cached" is misleading. It
+ * actually means "do not use the network". It is set by a client who only
+ * wants to make a request if it can be fully satisfied by the cache.
+ * Cached responses that would require validation (ie. conditional gets) are
+ * not permitted if this header is set.
+ */
+ private boolean isPublic;
+ private boolean mustRevalidate;
+ private String etag;
+ private int ageSeconds = -1;
+
+ /** Case-insensitive set of field names. */
+ private Set varyFields = Collections.emptySet();
+
+ private String contentEncoding;
+ private String transferEncoding;
+ private int contentLength = -1;
+ private String connection;
+
+ public ResponseHeaders(URI uri, RawHeaders headers) {
+ this.uri = uri;
+ this.headers = headers;
+
+ HeaderParser.CacheControlHandler handler = new HeaderParser.CacheControlHandler() {
+ @Override public void handle(String directive, String parameter) {
+ if ("no-cache".equalsIgnoreCase(directive)) {
+ noCache = true;
+ } else if ("no-store".equalsIgnoreCase(directive)) {
+ noStore = true;
+ } else if ("max-age".equalsIgnoreCase(directive)) {
+ maxAgeSeconds = HeaderParser.parseSeconds(parameter);
+ } else if ("s-maxage".equalsIgnoreCase(directive)) {
+ sMaxAgeSeconds = HeaderParser.parseSeconds(parameter);
+ } else if ("public".equalsIgnoreCase(directive)) {
+ isPublic = true;
+ } else if ("must-revalidate".equalsIgnoreCase(directive)) {
+ mustRevalidate = true;
+ }
+ }
+ };
+
+ for (int i = 0; i < headers.length(); i++) {
+ String fieldName = headers.getFieldName(i);
+ String value = headers.getValue(i);
+ if ("Cache-Control".equalsIgnoreCase(fieldName)) {
+ HeaderParser.parseCacheControl(value, handler);
+ } else if ("Date".equalsIgnoreCase(fieldName)) {
+ servedDate = HttpDate.parse(value);
+ } else if ("Expires".equalsIgnoreCase(fieldName)) {
+ expires = HttpDate.parse(value);
+ } else if ("Last-Modified".equalsIgnoreCase(fieldName)) {
+ lastModified = HttpDate.parse(value);
+ } else if ("ETag".equalsIgnoreCase(fieldName)) {
+ etag = value;
+ } else if ("Pragma".equalsIgnoreCase(fieldName)) {
+ if ("no-cache".equalsIgnoreCase(value)) {
+ noCache = true;
+ }
+ } else if ("Age".equalsIgnoreCase(fieldName)) {
+ ageSeconds = HeaderParser.parseSeconds(value);
+ } else if ("Vary".equalsIgnoreCase(fieldName)) {
+ // Replace the immutable empty set with something we can mutate.
+ if (varyFields.isEmpty()) {
+ varyFields = new TreeSet(String.CASE_INSENSITIVE_ORDER);
+ }
+ for (String varyField : value.split(",")) {
+ varyFields.add(varyField.trim());
+ }
+ } else if ("Content-Encoding".equalsIgnoreCase(fieldName)) {
+ contentEncoding = value;
+ } else if ("Transfer-Encoding".equalsIgnoreCase(fieldName)) {
+ transferEncoding = value;
+ } else if ("Content-Length".equalsIgnoreCase(fieldName)) {
+ try {
+ contentLength = Integer.parseInt(value);
+ } catch (NumberFormatException ignored) {
+ }
+ } else if ("Connection".equalsIgnoreCase(fieldName)) {
+ connection = value;
+ } else if (SENT_MILLIS.equalsIgnoreCase(fieldName)) {
+ sentRequestMillis = Long.parseLong(value);
+ } else if (RECEIVED_MILLIS.equalsIgnoreCase(fieldName)) {
+ receivedResponseMillis = Long.parseLong(value);
+ }
+ }
+ }
+
+ public boolean isContentEncodingGzip() {
+ return "gzip".equalsIgnoreCase(contentEncoding);
+ }
+
+ public void stripContentEncoding() {
+ contentEncoding = null;
+ headers.removeAll("Content-Encoding");
+ }
+
+ public void stripContentLength() {
+ contentLength = -1;
+ headers.removeAll("Content-Length");
+ }
+
+ public boolean isChunked() {
+ return "chunked".equalsIgnoreCase(transferEncoding);
+ }
+
+ public boolean hasConnectionClose() {
+ return "close".equalsIgnoreCase(connection);
+ }
+
+ public URI getUri() {
+ return uri;
+ }
+
+ public RawHeaders getHeaders() {
+ return headers;
+ }
+
+ public Date getServedDate() {
+ return servedDate;
+ }
+
+ public Date getLastModified() {
+ return lastModified;
+ }
+
+ public Date getExpires() {
+ return expires;
+ }
+
+ public boolean isNoCache() {
+ return noCache;
+ }
+
+ public boolean isNoStore() {
+ return noStore;
+ }
+
+ public int getMaxAgeSeconds() {
+ return maxAgeSeconds;
+ }
+
+ public int getSMaxAgeSeconds() {
+ return sMaxAgeSeconds;
+ }
+
+ public boolean isPublic() {
+ return isPublic;
+ }
+
+ public boolean isMustRevalidate() {
+ return mustRevalidate;
+ }
+
+ public String getEtag() {
+ return etag;
+ }
+
+ public Set getVaryFields() {
+ return varyFields;
+ }
+
+ public String getContentEncoding() {
+ return contentEncoding;
+ }
+
+ public int getContentLength() {
+ return contentLength;
+ }
+
+ public String getConnection() {
+ return connection;
+ }
+
+ public void setLocalTimestamps(long sentRequestMillis, long receivedResponseMillis) {
+ this.sentRequestMillis = sentRequestMillis;
+ headers.add(SENT_MILLIS, Long.toString(sentRequestMillis));
+ this.receivedResponseMillis = receivedResponseMillis;
+ headers.add(RECEIVED_MILLIS, Long.toString(receivedResponseMillis));
+ }
+
+ public void setResponseSource(ResponseSource responseSource) {
+ headers.set(RESPONSE_SOURCE, responseSource.toString() + " " + headers.getResponseCode());
+ }
+
+ /**
+ * Returns the current age of the response, in milliseconds. The calculation
+ * is specified by RFC 2616, 13.2.3 Age Calculations.
+ */
+ private long computeAge(long nowMillis) {
+ long apparentReceivedAge =
+ servedDate != null ? Math.max(0, receivedResponseMillis - servedDate.getTime()) : 0;
+ long receivedAge =
+ ageSeconds != -1 ? Math.max(apparentReceivedAge, TimeUnit.SECONDS.toMillis(ageSeconds))
+ : apparentReceivedAge;
+ long responseDuration = receivedResponseMillis - sentRequestMillis;
+ long residentDuration = nowMillis - receivedResponseMillis;
+ return receivedAge + responseDuration + residentDuration;
+ }
+
+ /**
+ * Returns the number of milliseconds that the response was fresh for,
+ * starting from the served date.
+ */
+ private long computeFreshnessLifetime() {
+ if (maxAgeSeconds != -1) {
+ return TimeUnit.SECONDS.toMillis(maxAgeSeconds);
+ } else if (expires != null) {
+ long servedMillis = servedDate != null ? servedDate.getTime() : receivedResponseMillis;
+ long delta = expires.getTime() - servedMillis;
+ return delta > 0 ? delta : 0;
+ } else if (lastModified != null && uri.getRawQuery() == null) {
+ // As recommended by the HTTP RFC and implemented in Firefox, the
+ // max age of a document should be defaulted to 10% of the
+ // document's age at the time it was served. Default expiration
+ // dates aren't used for URIs containing a query.
+ long servedMillis = servedDate != null ? servedDate.getTime() : sentRequestMillis;
+ long delta = servedMillis - lastModified.getTime();
+ return delta > 0 ? (delta / 10) : 0;
+ }
+ return 0;
+ }
+
+ /**
+ * Returns true if computeFreshnessLifetime used a heuristic. If we used a
+ * heuristic to serve a cached response older than 24 hours, we are required
+ * to attach a warning.
+ */
+ private boolean isFreshnessLifetimeHeuristic() {
+ return maxAgeSeconds == -1 && expires == null;
+ }
+
+ /**
+ * Returns true if this response can be stored to later serve another
+ * request.
+ */
+ public boolean isCacheable(RequestHeaders request) {
+ // Always go to network for uncacheable response codes (RFC 2616, 13.4),
+ // This implementation doesn't support caching partial content.
+ int responseCode = headers.getResponseCode();
+ if (responseCode != HttpURLConnection.HTTP_OK
+ && responseCode != HttpURLConnection.HTTP_NOT_AUTHORITATIVE
+ && responseCode != HttpURLConnection.HTTP_MULT_CHOICE
+ && responseCode != HttpURLConnection.HTTP_MOVED_PERM
+ && responseCode != HttpURLConnection.HTTP_GONE) {
+ return false;
+ }
+
+ // Responses to authorized requests aren't cacheable unless they include
+ // a 'public', 'must-revalidate' or 's-maxage' directive.
+ if (request.hasAuthorization() && !isPublic && !mustRevalidate && sMaxAgeSeconds == -1) {
+ return false;
+ }
+
+ if (noStore) {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Returns true if a Vary header contains an asterisk. Such responses cannot
+ * be cached.
+ */
+ public boolean hasVaryAll() {
+ return varyFields.contains("*");
+ }
+
+ /**
+ * Returns true if none of the Vary headers on this response have changed
+ * between {@code cachedRequest} and {@code newRequest}.
+ */
+ public boolean varyMatches(Map> cachedRequest,
+ Map> newRequest) {
+ for (String field : varyFields) {
+ if (!equal(cachedRequest.get(field), newRequest.get(field))) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /** Returns the source to satisfy {@code request} given this cached response. */
+ public ResponseSource chooseResponseSource(long nowMillis, RequestHeaders request) {
+ // If this response shouldn't have been stored, it should never be used
+ // as a response source. This check should be redundant as long as the
+ // persistence store is well-behaved and the rules are constant.
+ if (!isCacheable(request)) {
+ return ResponseSource.NETWORK;
+ }
+
+ if (request.isNoCache() || request.hasConditions()) {
+ return ResponseSource.NETWORK;
+ }
+
+ long ageMillis = computeAge(nowMillis);
+ long freshMillis = computeFreshnessLifetime();
+
+ if (request.getMaxAgeSeconds() != -1) {
+ freshMillis = Math.min(freshMillis, TimeUnit.SECONDS.toMillis(request.getMaxAgeSeconds()));
+ }
+
+ long minFreshMillis = 0;
+ if (request.getMinFreshSeconds() != -1) {
+ minFreshMillis = TimeUnit.SECONDS.toMillis(request.getMinFreshSeconds());
+ }
+
+ long maxStaleMillis = 0;
+ if (!mustRevalidate && request.getMaxStaleSeconds() != -1) {
+ maxStaleMillis = TimeUnit.SECONDS.toMillis(request.getMaxStaleSeconds());
+ }
+
+ if (!noCache && ageMillis + minFreshMillis < freshMillis + maxStaleMillis) {
+ if (ageMillis + minFreshMillis >= freshMillis) {
+ headers.add("Warning", "110 HttpURLConnection \"Response is stale\"");
+ }
+ if (ageMillis > TimeUnit.HOURS.toMillis(24) && isFreshnessLifetimeHeuristic()) {
+ headers.add("Warning", "113 HttpURLConnection \"Heuristic expiration\"");
+ }
+ return ResponseSource.CACHE;
+ }
+
+ if (lastModified != null) {
+ request.setIfModifiedSince(lastModified);
+ } else if (servedDate != null) {
+ request.setIfModifiedSince(servedDate);
+ }
+
+ if (etag != null) {
+ request.setIfNoneMatch(etag);
+ }
+
+ return request.hasConditions() ? ResponseSource.CONDITIONAL_CACHE : ResponseSource.NETWORK;
+ }
+
+ /**
+ * Returns true if this cached response should be used; false if the
+ * network response should be used.
+ */
+ public boolean validate(ResponseHeaders networkResponse) {
+ if (networkResponse.headers.getResponseCode() == HttpURLConnection.HTTP_NOT_MODIFIED) {
+ return true;
+ }
+
+ // The HTTP spec says that if the network's response is older than our
+ // cached response, we may return the cache's response. Like Chrome (but
+ // unlike Firefox), this client prefers to return the newer response.
+ if (lastModified != null
+ && networkResponse.lastModified != null
+ && networkResponse.lastModified.getTime() < lastModified.getTime()) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Combines this cached header with a network header as defined by RFC 2616,
+ * 13.5.3.
+ */
+ public ResponseHeaders combine(ResponseHeaders network) throws IOException {
+ RawHeaders result = new RawHeaders();
+ result.setStatusLine(headers.getStatusLine());
+
+ for (int i = 0; i < headers.length(); i++) {
+ String fieldName = headers.getFieldName(i);
+ String value = headers.getValue(i);
+ if ("Warning".equals(fieldName) && value.startsWith("1")) {
+ continue; // drop 100-level freshness warnings
+ }
+ if (!isEndToEnd(fieldName) || network.headers.get(fieldName) == null) {
+ result.add(fieldName, value);
+ }
+ }
+
+ for (int i = 0; i < network.headers.length(); i++) {
+ String fieldName = network.headers.getFieldName(i);
+ if (isEndToEnd(fieldName)) {
+ result.add(fieldName, network.headers.getValue(i));
+ }
+ }
+
+ return new ResponseHeaders(uri, result);
+ }
+
+ /**
+ * Returns true if {@code fieldName} is an end-to-end HTTP header, as
+ * defined by RFC 2616, 13.5.1.
+ */
+ private static boolean isEndToEnd(String fieldName) {
+ return !"Connection".equalsIgnoreCase(fieldName)
+ && !"Keep-Alive".equalsIgnoreCase(fieldName)
+ && !"Proxy-Authenticate".equalsIgnoreCase(fieldName)
+ && !"Proxy-Authorization".equalsIgnoreCase(fieldName)
+ && !"TE".equalsIgnoreCase(fieldName)
+ && !"Trailers".equalsIgnoreCase(fieldName)
+ && !"Transfer-Encoding".equalsIgnoreCase(fieldName)
+ && !"Upgrade".equalsIgnoreCase(fieldName);
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/RetryableOutputStream.java b/framework/src/com/squareup/okhttp/internal/http/RetryableOutputStream.java
new file mode 100644
index 00000000..325327db
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/RetryableOutputStream.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.ProtocolException;
+
+import static com.squareup.okhttp.internal.Util.checkOffsetAndCount;
+
+/**
+ * An HTTP request body that's completely buffered in memory. This allows
+ * the post body to be transparently re-sent if the HTTP request must be
+ * sent multiple times.
+ */
+final class RetryableOutputStream extends AbstractHttpOutputStream {
+ private final int limit;
+ private final ByteArrayOutputStream content;
+
+ public RetryableOutputStream(int limit) {
+ this.limit = limit;
+ this.content = new ByteArrayOutputStream(limit);
+ }
+
+ public RetryableOutputStream() {
+ this.limit = -1;
+ this.content = new ByteArrayOutputStream();
+ }
+
+ @Override public synchronized void close() throws IOException {
+ if (closed) {
+ return;
+ }
+ closed = true;
+ if (content.size() < limit) {
+ throw new ProtocolException(
+ "content-length promised " + limit + " bytes, but received " + content.size());
+ }
+ }
+
+ @Override public synchronized void write(byte[] buffer, int offset, int count)
+ throws IOException {
+ checkNotClosed();
+ checkOffsetAndCount(buffer.length, offset, count);
+ if (limit != -1 && content.size() > limit - count) {
+ throw new ProtocolException("exceeded content-length limit of " + limit + " bytes");
+ }
+ content.write(buffer, offset, count);
+ }
+
+ public synchronized int contentLength() throws IOException {
+ close();
+ return content.size();
+ }
+
+ public void writeToSocket(OutputStream socketOut) throws IOException {
+ content.writeTo(socketOut);
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/RouteSelector.java b/framework/src/com/squareup/okhttp/internal/http/RouteSelector.java
new file mode 100644
index 00000000..798cff3b
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/RouteSelector.java
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2012 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.Address;
+import com.squareup.okhttp.Connection;
+import com.squareup.okhttp.ConnectionPool;
+import com.squareup.okhttp.internal.Dns;
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.Proxy;
+import java.net.ProxySelector;
+import java.net.SocketAddress;
+import java.net.URI;
+import java.net.UnknownHostException;
+import java.util.Iterator;
+import java.util.List;
+import java.util.NoSuchElementException;
+
+import static com.squareup.okhttp.internal.Util.getEffectivePort;
+
+/**
+ * Selects routes to connect to an origin server. Each connection requires a
+ * choice of proxy server, IP address, and TLS mode. Connections may also be
+ * recycled.
+ */
+public final class RouteSelector {
+ /** Uses {@link com.squareup.okhttp.internal.Platform#enableTlsExtensions}. */
+ private static final int TLS_MODE_MODERN = 1;
+ /** Uses {@link com.squareup.okhttp.internal.Platform#supportTlsIntolerantServer}. */
+ private static final int TLS_MODE_COMPATIBLE = 0;
+ /** No TLS mode. */
+ private static final int TLS_MODE_NULL = -1;
+
+ private final Address address;
+ private final URI uri;
+ private final ProxySelector proxySelector;
+ private final ConnectionPool pool;
+ private final Dns dns;
+
+ /* The most recently attempted route. */
+ private Proxy lastProxy;
+ private InetSocketAddress lastInetSocketAddress;
+
+ /* State for negotiating the next proxy to use. */
+ private boolean hasNextProxy;
+ private Proxy userSpecifiedProxy;
+ private Iterator proxySelectorProxies;
+
+ /* State for negotiating the next InetSocketAddress to use. */
+ private InetAddress[] socketAddresses;
+ private int nextSocketAddressIndex;
+ private String socketHost;
+ private int socketPort;
+
+ /* State for negotiating the next TLS configuration */
+ private int nextTlsMode = TLS_MODE_NULL;
+
+ public RouteSelector(Address address, URI uri, ProxySelector proxySelector, ConnectionPool pool,
+ Dns dns) {
+ this.address = address;
+ this.uri = uri;
+ this.proxySelector = proxySelector;
+ this.pool = pool;
+ this.dns = dns;
+
+ resetNextProxy(uri, address.getProxy());
+ }
+
+ /**
+ * Returns true if there's another route to attempt. Every address has at
+ * least one route.
+ */
+ public boolean hasNext() {
+ return hasNextTlsMode() || hasNextInetSocketAddress() || hasNextProxy();
+ }
+
+ /**
+ * Returns the next route address to attempt.
+ *
+ * @throws NoSuchElementException if there are no more routes to attempt.
+ */
+ public Connection next() throws IOException {
+ // Always prefer pooled connections over new connections.
+ Connection pooled = pool.get(address);
+ if (pooled != null) {
+ return pooled;
+ }
+
+ // Compute the next route to attempt.
+ if (!hasNextTlsMode()) {
+ if (!hasNextInetSocketAddress()) {
+ if (!hasNextProxy()) {
+ throw new NoSuchElementException();
+ }
+ lastProxy = nextProxy();
+ resetNextInetSocketAddress(lastProxy);
+ }
+ lastInetSocketAddress = nextInetSocketAddress();
+ resetNextTlsMode();
+ }
+ boolean modernTls = nextTlsMode() == TLS_MODE_MODERN;
+
+ return new Connection(address, lastProxy, lastInetSocketAddress, modernTls);
+ }
+
+ /**
+ * Clients should invoke this method when they encounter a connectivity
+ * failure on a connection returned by this route selector.
+ */
+ public void connectFailed(Connection connection, IOException failure) {
+ if (connection.getProxy().type() != Proxy.Type.DIRECT && proxySelector != null) {
+ // Tell the proxy selector when we fail to connect on a fresh connection.
+ proxySelector.connectFailed(uri, connection.getProxy().address(), failure);
+ }
+ }
+
+ /** Resets {@link #nextProxy} to the first option. */
+ private void resetNextProxy(URI uri, Proxy proxy) {
+ this.hasNextProxy = true; // This includes NO_PROXY!
+ if (proxy != null) {
+ this.userSpecifiedProxy = proxy;
+ } else {
+ List proxyList = proxySelector.select(uri);
+ if (proxyList != null) {
+ this.proxySelectorProxies = proxyList.iterator();
+ }
+ }
+ }
+
+ /** Returns true if there's another proxy to try. */
+ private boolean hasNextProxy() {
+ return hasNextProxy;
+ }
+
+ /** Returns the next proxy to try. May be PROXY.NO_PROXY but never null. */
+ private Proxy nextProxy() {
+ // If the user specifies a proxy, try that and only that.
+ if (userSpecifiedProxy != null) {
+ hasNextProxy = false;
+ return userSpecifiedProxy;
+ }
+
+ // Try each of the ProxySelector choices until one connection succeeds. If none succeed
+ // then we'll try a direct connection below.
+ if (proxySelectorProxies != null) {
+ while (proxySelectorProxies.hasNext()) {
+ Proxy candidate = proxySelectorProxies.next();
+ if (candidate.type() != Proxy.Type.DIRECT) {
+ return candidate;
+ }
+ }
+ }
+
+ // Finally try a direct connection.
+ hasNextProxy = false;
+ return Proxy.NO_PROXY;
+ }
+
+ /** Resets {@link #nextInetSocketAddress} to the first option. */
+ private void resetNextInetSocketAddress(Proxy proxy) throws UnknownHostException {
+ socketAddresses = null; // Clear the addresses. Necessary if getAllByName() below throws!
+
+ if (proxy.type() == Proxy.Type.DIRECT) {
+ socketHost = uri.getHost();
+ socketPort = getEffectivePort(uri);
+ } else {
+ SocketAddress proxyAddress = proxy.address();
+ if (!(proxyAddress instanceof InetSocketAddress)) {
+ throw new IllegalArgumentException(
+ "Proxy.address() is not an " + "InetSocketAddress: " + proxyAddress.getClass());
+ }
+ InetSocketAddress proxySocketAddress = (InetSocketAddress) proxyAddress;
+ socketHost = proxySocketAddress.getHostName();
+ socketPort = proxySocketAddress.getPort();
+ }
+
+ // Try each address for best behavior in mixed IPv4/IPv6 environments.
+ socketAddresses = dns.getAllByName(socketHost);
+ nextSocketAddressIndex = 0;
+ }
+
+ /** Returns true if there's another socket address to try. */
+ private boolean hasNextInetSocketAddress() {
+ return socketAddresses != null;
+ }
+
+ /** Returns the next socket address to try. */
+ private InetSocketAddress nextInetSocketAddress() throws UnknownHostException {
+ InetSocketAddress result =
+ new InetSocketAddress(socketAddresses[nextSocketAddressIndex++], socketPort);
+ if (nextSocketAddressIndex == socketAddresses.length) {
+ socketAddresses = null; // So that hasNextInetSocketAddress() returns false.
+ nextSocketAddressIndex = 0;
+ }
+
+ return result;
+ }
+
+ /** Resets {@link #nextTlsMode} to the first option. */
+ private void resetNextTlsMode() {
+ nextTlsMode = (address.getSslSocketFactory() != null) ? TLS_MODE_MODERN : TLS_MODE_COMPATIBLE;
+ }
+
+ /** Returns true if there's another TLS mode to try. */
+ private boolean hasNextTlsMode() {
+ return nextTlsMode != TLS_MODE_NULL;
+ }
+
+ /** Returns the next TLS mode to try. */
+ private int nextTlsMode() {
+ if (nextTlsMode == TLS_MODE_MODERN) {
+ nextTlsMode = TLS_MODE_COMPATIBLE;
+ return TLS_MODE_MODERN;
+ } else if (nextTlsMode == TLS_MODE_COMPATIBLE) {
+ nextTlsMode = TLS_MODE_NULL; // So that hasNextTlsMode() returns false.
+ return TLS_MODE_COMPATIBLE;
+ } else {
+ throw new AssertionError();
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/SpdyTransport.java b/framework/src/com/squareup/okhttp/internal/http/SpdyTransport.java
new file mode 100644
index 00000000..18ab5668
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/SpdyTransport.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import com.squareup.okhttp.internal.spdy.SpdyConnection;
+import com.squareup.okhttp.internal.spdy.SpdyStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.CacheRequest;
+import java.net.URL;
+import java.util.List;
+
+public final class SpdyTransport implements Transport {
+ private final HttpEngine httpEngine;
+ private final SpdyConnection spdyConnection;
+ private SpdyStream stream;
+
+ public SpdyTransport(HttpEngine httpEngine, SpdyConnection spdyConnection) {
+ this.httpEngine = httpEngine;
+ this.spdyConnection = spdyConnection;
+ }
+
+ @Override public OutputStream createRequestBody() throws IOException {
+ // TODO: if we aren't streaming up to the server, we should buffer the whole request
+ writeRequestHeaders();
+ return stream.getOutputStream();
+ }
+
+ @Override public void writeRequestHeaders() throws IOException {
+ if (stream != null) {
+ return;
+ }
+ httpEngine.writingRequestHeaders();
+ RawHeaders requestHeaders = httpEngine.requestHeaders.getHeaders();
+ String version = httpEngine.connection.getHttpMinorVersion() == 1 ? "HTTP/1.1" : "HTTP/1.0";
+ URL url = httpEngine.policy.getURL();
+ requestHeaders.addSpdyRequestHeaders(httpEngine.method, HttpEngine.requestPath(url), version,
+ HttpEngine.getOriginAddress(url), httpEngine.uri.getScheme());
+ boolean hasRequestBody = httpEngine.hasRequestBody();
+ boolean hasResponseBody = true;
+ stream = spdyConnection.newStream(requestHeaders.toNameValueBlock(), hasRequestBody,
+ hasResponseBody);
+ stream.setReadTimeout(httpEngine.policy.getReadTimeout());
+ }
+
+ @Override public void writeRequestBody(RetryableOutputStream requestBody) throws IOException {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override public void flushRequest() throws IOException {
+ stream.getOutputStream().close();
+ }
+
+ @Override public ResponseHeaders readResponseHeaders() throws IOException {
+ List nameValueBlock = stream.getResponseHeaders();
+ RawHeaders rawHeaders = RawHeaders.fromNameValueBlock(nameValueBlock);
+ rawHeaders.computeResponseStatusLineFromSpdyHeaders();
+ httpEngine.receiveHeaders(rawHeaders);
+ return new ResponseHeaders(httpEngine.uri, rawHeaders);
+ }
+
+ @Override public InputStream getTransferStream(CacheRequest cacheRequest) throws IOException {
+ return new UnknownLengthHttpInputStream(stream.getInputStream(), cacheRequest, httpEngine);
+ }
+
+ @Override public boolean makeReusable(boolean streamCancelled, OutputStream requestBodyOut,
+ InputStream responseBodyIn) {
+ if (streamCancelled) {
+ if (stream != null) {
+ stream.closeLater(SpdyStream.RST_CANCEL);
+ return true;
+ } else {
+ // If stream is null, it either means that writeRequestHeaders wasn't called
+ // or that SpdyConnection#newStream threw an IOEXception. In both cases there's
+ // nothing to do here and this stream can't be reused.
+ return false;
+ }
+ }
+ return true;
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/Transport.java b/framework/src/com/squareup/okhttp/internal/http/Transport.java
new file mode 100644
index 00000000..518827e8
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/Transport.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.http;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.CacheRequest;
+
+interface Transport {
+ /**
+ * Returns an output stream where the request body can be written. The
+ * returned stream will of one of two types:
+ *
+ * - Direct. Bytes are written to the socket and
+ * forgotten. This is most efficient, particularly for large request
+ * bodies. The returned stream may be buffered; the caller must call
+ * {@link #flushRequest} before reading the response.
+ * - Buffered. Bytes are written to an in memory
+ * buffer, and must be explicitly flushed with a call to {@link
+ * #writeRequestBody}. This allows HTTP authorization (401, 407)
+ * responses to be retransmitted transparently.
+ *
+ */
+ // TODO: don't bother retransmitting the request body? It's quite a corner
+ // case and there's uncertainty whether Firefox or Chrome do this
+ OutputStream createRequestBody() throws IOException;
+
+ /** This should update the HTTP engine's sentRequestMillis field. */
+ void writeRequestHeaders() throws IOException;
+
+ /**
+ * Sends the request body returned by {@link #createRequestBody} to the
+ * remote peer.
+ */
+ void writeRequestBody(RetryableOutputStream requestBody) throws IOException;
+
+ /** Flush the request body to the underlying socket. */
+ void flushRequest() throws IOException;
+
+ /** Read response headers and update the cookie manager. */
+ ResponseHeaders readResponseHeaders() throws IOException;
+
+ // TODO: make this the content stream?
+ InputStream getTransferStream(CacheRequest cacheRequest) throws IOException;
+
+ /** Returns true if the underlying connection can be recycled. */
+ boolean makeReusable(boolean streamReusable, OutputStream requestBodyOut,
+ InputStream responseBodyIn);
+}
diff --git a/framework/src/com/squareup/okhttp/internal/http/UnknownLengthHttpInputStream.java b/framework/src/com/squareup/okhttp/internal/http/UnknownLengthHttpInputStream.java
new file mode 100644
index 00000000..729e0b92
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/http/UnknownLengthHttpInputStream.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal.http;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.CacheRequest;
+
+import static com.squareup.okhttp.internal.Util.checkOffsetAndCount;
+
+/** An HTTP message body terminated by the end of the underlying stream. */
+final class UnknownLengthHttpInputStream extends AbstractHttpInputStream {
+ private boolean inputExhausted;
+
+ UnknownLengthHttpInputStream(InputStream is, CacheRequest cacheRequest, HttpEngine httpEngine)
+ throws IOException {
+ super(is, httpEngine, cacheRequest);
+ }
+
+ @Override public int read(byte[] buffer, int offset, int count) throws IOException {
+ checkOffsetAndCount(buffer.length, offset, count);
+ checkNotClosed();
+ if (in == null || inputExhausted) {
+ return -1;
+ }
+ int read = in.read(buffer, offset, count);
+ if (read == -1) {
+ inputExhausted = true;
+ endOfInput(false);
+ return -1;
+ }
+ cacheWrite(buffer, offset, read);
+ return read;
+ }
+
+ @Override public int available() throws IOException {
+ checkNotClosed();
+ return in == null ? 0 : in.available();
+ }
+
+ @Override public void close() throws IOException {
+ if (closed) {
+ return;
+ }
+ closed = true;
+ if (!inputExhausted) {
+ unexpectedEndOfInput();
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/spdy/IncomingStreamHandler.java b/framework/src/com/squareup/okhttp/internal/spdy/IncomingStreamHandler.java
new file mode 100644
index 00000000..875fff0f
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/spdy/IncomingStreamHandler.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.spdy;
+
+import java.io.IOException;
+
+/** Listener to be notified when a connected peer creates a new stream. */
+public interface IncomingStreamHandler {
+ IncomingStreamHandler REFUSE_INCOMING_STREAMS = new IncomingStreamHandler() {
+ @Override public void receive(SpdyStream stream) throws IOException {
+ stream.close(SpdyStream.RST_REFUSED_STREAM);
+ }
+ };
+
+ /**
+ * Handle a new stream from this connection's peer. Implementations should
+ * respond by either {@link SpdyStream#reply replying to the stream} or
+ * {@link SpdyStream#close closing it}. This response does not need to be
+ * synchronous.
+ */
+ void receive(SpdyStream stream) throws IOException;
+}
diff --git a/framework/src/com/squareup/okhttp/internal/spdy/Ping.java b/framework/src/com/squareup/okhttp/internal/spdy/Ping.java
new file mode 100644
index 00000000..c5852557
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/spdy/Ping.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2012 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal.spdy;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * A locally-originated ping.
+ */
+public final class Ping {
+ private final CountDownLatch latch = new CountDownLatch(1);
+ private long sent = -1;
+ private long received = -1;
+
+ Ping() {
+ }
+
+ void send() {
+ if (sent != -1) throw new IllegalStateException();
+ sent = System.nanoTime();
+ }
+
+ void receive() {
+ if (received != -1 || sent == -1) throw new IllegalStateException();
+ received = System.nanoTime();
+ latch.countDown();
+ }
+
+ void cancel() {
+ if (received != -1 || sent == -1) throw new IllegalStateException();
+ received = sent - 1;
+ latch.countDown();
+ }
+
+ /**
+ * Returns the round trip time for this ping in nanoseconds, waiting for the
+ * response to arrive if necessary. Returns -1 if the response was
+ * cancelled.
+ */
+ public long roundTripTime() throws InterruptedException {
+ latch.await();
+ return received - sent;
+ }
+
+ /**
+ * Returns the round trip time for this ping in nanoseconds, or -1 if the
+ * response was cancelled, or -2 if the timeout elapsed before the round
+ * trip completed.
+ */
+ public long roundTripTime(long timeout, TimeUnit unit) throws InterruptedException {
+ if (latch.await(timeout, unit)) {
+ return received - sent;
+ } else {
+ return -2;
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/spdy/Settings.java b/framework/src/com/squareup/okhttp/internal/spdy/Settings.java
new file mode 100644
index 00000000..774d7912
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/spdy/Settings.java
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2012 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.okhttp.internal.spdy;
+
+final class Settings {
+ /**
+ * From the spdy/3 spec, the default initial window size for all streams is
+ * 64 KiB. (Chrome 25 uses 10 MiB).
+ */
+ static final int DEFAULT_INITIAL_WINDOW_SIZE = 64 * 1024;
+
+ /** Peer request to clear durable settings. */
+ static final int FLAG_CLEAR_PREVIOUSLY_PERSISTED_SETTINGS = 0x1;
+
+ /** Sent by servers only. The peer requests this setting persisted for future connections. */
+ static final int PERSIST_VALUE = 0x1;
+ /** Sent by clients only. The client is reminding the server of a persisted value. */
+ static final int PERSISTED = 0x2;
+
+ /** Sender's estimate of max incoming kbps. */
+ static final int UPLOAD_BANDWIDTH = 0x1;
+ /** Sender's estimate of max outgoing kbps. */
+ static final int DOWNLOAD_BANDWIDTH = 0x2;
+ /** Sender's estimate of milliseconds between sending a request and receiving a response. */
+ static final int ROUND_TRIP_TIME = 0x3;
+ /** Sender's maximum number of concurrent streams. */
+ static final int MAX_CONCURRENT_STREAMS = 0x4;
+ /** Current CWND in Packets. */
+ static final int CURRENT_CWND = 0x5;
+ /** Retransmission rate. Percentage */
+ static final int DOWNLOAD_RETRANS_RATE = 0x6;
+ /** Window size in bytes. */
+ static final int INITIAL_WINDOW_SIZE = 0x7;
+ /** Window size in bytes. */
+ static final int CLIENT_CERTIFICATE_VECTOR_SIZE = 0x8;
+ /** Total number of settings. */
+ static final int COUNT = 0x9;
+
+ /** Bitfield of which flags that values. */
+ private int set;
+
+ /** Bitfield of flags that have {@link #PERSIST_VALUE}. */
+ private int persistValue;
+
+ /** Bitfield of flags that have {@link #PERSISTED}. */
+ private int persisted;
+
+ /** Flag values. */
+ private final int[] values = new int[COUNT];
+
+ void set(int id, int idFlags, int value) {
+ if (id >= values.length) {
+ return; // Discard unknown settings.
+ }
+
+ int bit = 1 << id;
+ set |= bit;
+ if ((idFlags & PERSIST_VALUE) != 0) {
+ persistValue |= bit;
+ } else {
+ persistValue &= ~bit;
+ }
+ if ((idFlags & PERSISTED) != 0) {
+ persisted |= bit;
+ } else {
+ persisted &= ~bit;
+ }
+
+ values[id] = value;
+ }
+
+ /** Returns true if a value has been assigned for the setting {@code id}. */
+ boolean isSet(int id) {
+ int bit = 1 << id;
+ return (set & bit) != 0;
+ }
+
+ /** Returns the value for the setting {@code id}, or 0 if unset. */
+ int get(int id) {
+ return values[id];
+ }
+
+ /** Returns the flags for the setting {@code id}, or 0 if unset. */
+ int flags(int id) {
+ int result = 0;
+ if (isPersisted(id)) result |= Settings.PERSISTED;
+ if (persistValue(id)) result |= Settings.PERSIST_VALUE;
+ return result;
+ }
+
+ /** Returns the number of settings that have values assigned. */
+ int size() {
+ return Integer.bitCount(set);
+ }
+
+ int getUploadBandwidth(int defaultValue) {
+ int bit = 1 << UPLOAD_BANDWIDTH;
+ return (bit & set) != 0 ? values[UPLOAD_BANDWIDTH] : defaultValue;
+ }
+
+ int getDownloadBandwidth(int defaultValue) {
+ int bit = 1 << DOWNLOAD_BANDWIDTH;
+ return (bit & set) != 0 ? values[DOWNLOAD_BANDWIDTH] : defaultValue;
+ }
+
+ int getRoundTripTime(int defaultValue) {
+ int bit = 1 << ROUND_TRIP_TIME;
+ return (bit & set) != 0 ? values[ROUND_TRIP_TIME] : defaultValue;
+ }
+
+ int getMaxConcurrentStreams(int defaultValue) {
+ int bit = 1 << MAX_CONCURRENT_STREAMS;
+ return (bit & set) != 0 ? values[MAX_CONCURRENT_STREAMS] : defaultValue;
+ }
+
+ int getCurrentCwnd(int defaultValue) {
+ int bit = 1 << CURRENT_CWND;
+ return (bit & set) != 0 ? values[CURRENT_CWND] : defaultValue;
+ }
+
+ int getDownloadRetransRate(int defaultValue) {
+ int bit = 1 << DOWNLOAD_RETRANS_RATE;
+ return (bit & set) != 0 ? values[DOWNLOAD_RETRANS_RATE] : defaultValue;
+ }
+
+ int getInitialWindowSize(int defaultValue) {
+ int bit = 1 << INITIAL_WINDOW_SIZE;
+ return (bit & set) != 0 ? values[INITIAL_WINDOW_SIZE] : defaultValue;
+ }
+
+ int getClientCertificateVectorSize(int defaultValue) {
+ int bit = 1 << CLIENT_CERTIFICATE_VECTOR_SIZE;
+ return (bit & set) != 0 ? values[CLIENT_CERTIFICATE_VECTOR_SIZE] : defaultValue;
+ }
+
+ /**
+ * Returns true if this user agent should use this setting in future SPDY
+ * connections to the same host.
+ */
+ boolean persistValue(int id) {
+ int bit = 1 << id;
+ return (persistValue & bit) != 0;
+ }
+
+ /** Returns true if this setting was persisted. */
+ boolean isPersisted(int id) {
+ int bit = 1 << id;
+ return (persisted & bit) != 0;
+ }
+
+ /**
+ * Writes {@code other} into this. If any setting is populated by this and
+ * {@code other}, the value and flags from {@code other} will be kept.
+ */
+ void merge(Settings other) {
+ for (int i = 0; i < COUNT; i++) {
+ if (!other.isSet(i)) continue;
+ set(i, other.flags(i), other.get(i));
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/spdy/SpdyConnection.java b/framework/src/com/squareup/okhttp/internal/spdy/SpdyConnection.java
new file mode 100644
index 00000000..b3e248c3
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/spdy/SpdyConnection.java
@@ -0,0 +1,579 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.spdy;
+
+import com.squareup.okhttp.internal.NamedRunnable;
+import com.squareup.okhttp.internal.Util;
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.Socket;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.SynchronousQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+import static java.util.concurrent.Executors.defaultThreadFactory;
+
+/**
+ * A socket connection to a remote peer. A connection hosts streams which can
+ * send and receive data.
+ *
+ * Many methods in this API are synchronous: the call is
+ * completed before the method returns. This is typical for Java but atypical
+ * for SPDY. This is motivated by exception transparency: an IOException that
+ * was triggered by a certain caller can be caught and handled by that caller.
+ */
+public final class SpdyConnection implements Closeable {
+
+ // Internal state of this connection is guarded by 'this'. No blocking
+ // operations may be performed while holding this lock!
+ //
+ // Socket writes are guarded by spdyWriter.
+ //
+ // Socket reads are unguarded but are only made by the reader thread.
+ //
+ // Certain operations (like SYN_STREAM) need to synchronize on both the
+ // spdyWriter (to do blocking I/O) and this (to create streams). Such
+ // operations must synchronize on 'this' last. This ensures that we never
+ // wait for a blocking operation while holding 'this'.
+
+ static final int FLAG_FIN = 0x1;
+ static final int FLAG_UNIDIRECTIONAL = 0x2;
+
+ static final int TYPE_DATA = 0x0;
+ static final int TYPE_SYN_STREAM = 0x1;
+ static final int TYPE_SYN_REPLY = 0x2;
+ static final int TYPE_RST_STREAM = 0x3;
+ static final int TYPE_SETTINGS = 0x4;
+ static final int TYPE_NOOP = 0x5;
+ static final int TYPE_PING = 0x6;
+ static final int TYPE_GOAWAY = 0x7;
+ static final int TYPE_HEADERS = 0x8;
+ static final int TYPE_WINDOW_UPDATE = 0x9;
+ static final int TYPE_CREDENTIAL = 0x10;
+ static final int VERSION = 3;
+
+ static final int GOAWAY_OK = 0;
+ static final int GOAWAY_PROTOCOL_ERROR = 1;
+ static final int GOAWAY_INTERNAL_ERROR = 2;
+
+ private static final ExecutorService executor =
+ new ThreadPoolExecutor(0, Integer.MAX_VALUE, 60, TimeUnit.SECONDS,
+ new SynchronousQueue(), defaultThreadFactory());
+
+ /** True if this peer initiated the connection. */
+ final boolean client;
+
+ /**
+ * User code to run in response to an incoming stream. Callbacks must not be
+ * run on the callback executor.
+ */
+ private final IncomingStreamHandler handler;
+ private final SpdyReader spdyReader;
+ private final SpdyWriter spdyWriter;
+
+ private final Map streams = new HashMap();
+ private final String hostName;
+ private int lastGoodStreamId;
+ private int nextStreamId;
+ private boolean shutdown;
+ private long idleStartTimeNs = System.nanoTime();
+
+ /** Lazily-created map of in-flight pings awaiting a response. Guarded by this. */
+ private Map pings;
+ private int nextPingId;
+
+ /** Lazily-created settings for this connection. */
+ Settings settings;
+
+ private SpdyConnection(Builder builder) {
+ client = builder.client;
+ handler = builder.handler;
+ spdyReader = new SpdyReader(builder.in);
+ spdyWriter = new SpdyWriter(builder.out);
+ nextStreamId = builder.client ? 1 : 2;
+ nextPingId = builder.client ? 1 : 2;
+
+ hostName = builder.hostName;
+
+ new Thread(new Reader(), "Spdy Reader " + hostName).start();
+ }
+
+ /**
+ * Returns the number of {@link SpdyStream#isOpen() open streams} on this
+ * connection.
+ */
+ public synchronized int openStreamCount() {
+ return streams.size();
+ }
+
+ private synchronized SpdyStream getStream(int id) {
+ return streams.get(id);
+ }
+
+ synchronized SpdyStream removeStream(int streamId) {
+ SpdyStream stream = streams.remove(streamId);
+ if (stream != null && streams.isEmpty()) {
+ setIdle(true);
+ }
+ return stream;
+ }
+
+ private void setIdle(boolean value) {
+ idleStartTimeNs = value ? System.nanoTime() : 0L;
+ }
+
+ /** Returns true if this connection is idle. */
+ public boolean isIdle() {
+ return idleStartTimeNs != 0L;
+ }
+
+ /** Returns the time in ns when this connection became idle or 0L if connection is not idle. */
+ public long getIdleStartTimeNs() {
+ return idleStartTimeNs;
+ }
+
+ /**
+ * Returns a new locally-initiated stream.
+ *
+ * @param out true to create an output stream that we can use to send data
+ * to the remote peer. Corresponds to {@code FLAG_FIN}.
+ * @param in true to create an input stream that the remote peer can use to
+ * send data to us. Corresponds to {@code FLAG_UNIDIRECTIONAL}.
+ */
+ public SpdyStream newStream(List requestHeaders, boolean out, boolean in)
+ throws IOException {
+ int flags = (out ? 0 : FLAG_FIN) | (in ? 0 : FLAG_UNIDIRECTIONAL);
+ int associatedStreamId = 0; // TODO: permit the caller to specify an associated stream?
+ int priority = 0; // TODO: permit the caller to specify a priority?
+ int slot = 0; // TODO: permit the caller to specify a slot?
+ SpdyStream stream;
+ int streamId;
+
+ synchronized (spdyWriter) {
+ synchronized (this) {
+ if (shutdown) {
+ throw new IOException("shutdown");
+ }
+ streamId = nextStreamId;
+ nextStreamId += 2;
+ stream = new SpdyStream(streamId, this, flags, priority, slot, requestHeaders, settings);
+ if (stream.isOpen()) {
+ streams.put(streamId, stream);
+ setIdle(false);
+ }
+ }
+
+ spdyWriter.synStream(flags, streamId, associatedStreamId, priority, slot, requestHeaders);
+ }
+
+ return stream;
+ }
+
+ void writeSynReply(int streamId, int flags, List alternating) throws IOException {
+ spdyWriter.synReply(flags, streamId, alternating);
+ }
+
+ /** Writes a complete data frame. */
+ void writeFrame(byte[] bytes, int offset, int length) throws IOException {
+ synchronized (spdyWriter) {
+ spdyWriter.out.write(bytes, offset, length);
+ }
+ }
+
+ void writeSynResetLater(final int streamId, final int statusCode) {
+ executor.submit(
+ new NamedRunnable(String.format("Spdy Writer %s stream %d", hostName, streamId)) {
+ @Override public void execute() {
+ try {
+ writeSynReset(streamId, statusCode);
+ } catch (IOException ignored) {
+ }
+ }
+ });
+ }
+
+ void writeSynReset(int streamId, int statusCode) throws IOException {
+ spdyWriter.rstStream(streamId, statusCode);
+ }
+
+ void writeWindowUpdateLater(final int streamId, final int deltaWindowSize) {
+ executor.submit(
+ new NamedRunnable(String.format("Spdy Writer %s stream %d", hostName, streamId)) {
+ @Override public void execute() {
+ try {
+ writeWindowUpdate(streamId, deltaWindowSize);
+ } catch (IOException ignored) {
+ }
+ }
+ });
+ }
+
+ void writeWindowUpdate(int streamId, int deltaWindowSize) throws IOException {
+ spdyWriter.windowUpdate(streamId, deltaWindowSize);
+ }
+
+ /**
+ * Sends a ping frame to the peer. Use the returned object to await the
+ * ping's response and observe its round trip time.
+ */
+ public Ping ping() throws IOException {
+ Ping ping = new Ping();
+ int pingId;
+ synchronized (this) {
+ if (shutdown) {
+ throw new IOException("shutdown");
+ }
+ pingId = nextPingId;
+ nextPingId += 2;
+ if (pings == null) pings = new HashMap();
+ pings.put(pingId, ping);
+ }
+ writePing(pingId, ping);
+ return ping;
+ }
+
+ private void writePingLater(final int streamId, final Ping ping) {
+ executor.submit(new NamedRunnable(String.format("Spdy Writer %s ping %d", hostName, streamId)) {
+ @Override public void execute() {
+ try {
+ writePing(streamId, ping);
+ } catch (IOException ignored) {
+ }
+ }
+ });
+ }
+
+ private void writePing(int id, Ping ping) throws IOException {
+ synchronized (spdyWriter) {
+ // Observe the sent time immediately before performing I/O.
+ if (ping != null) ping.send();
+ spdyWriter.ping(0, id);
+ }
+ }
+
+ private synchronized Ping removePing(int id) {
+ return pings != null ? pings.remove(id) : null;
+ }
+
+ /** Sends a noop frame to the peer. */
+ public void noop() throws IOException {
+ spdyWriter.noop();
+ }
+
+ public void flush() throws IOException {
+ synchronized (spdyWriter) {
+ spdyWriter.out.flush();
+ }
+ }
+
+ /**
+ * Degrades this connection such that new streams can neither be created
+ * locally, nor accepted from the remote peer. Existing streams are not
+ * impacted. This is intended to permit an endpoint to gracefully stop
+ * accepting new requests without harming previously established streams.
+ *
+ * @param statusCode one of {@link #GOAWAY_OK}, {@link
+ * #GOAWAY_INTERNAL_ERROR} or {@link #GOAWAY_PROTOCOL_ERROR}.
+ */
+ public void shutdown(int statusCode) throws IOException {
+ synchronized (spdyWriter) {
+ int lastGoodStreamId;
+ synchronized (this) {
+ if (shutdown) {
+ return;
+ }
+ shutdown = true;
+ lastGoodStreamId = this.lastGoodStreamId;
+ }
+ spdyWriter.goAway(0, lastGoodStreamId, statusCode);
+ }
+ }
+
+ /**
+ * Closes this connection. This cancels all open streams and unanswered
+ * pings. It closes the underlying input and output streams and shuts down
+ * internal executor services.
+ */
+ @Override public void close() throws IOException {
+ close(GOAWAY_OK, SpdyStream.RST_CANCEL);
+ }
+
+ private void close(int shutdownStatusCode, int rstStatusCode) throws IOException {
+ assert (!Thread.holdsLock(this));
+ IOException thrown = null;
+ try {
+ shutdown(shutdownStatusCode);
+ } catch (IOException e) {
+ thrown = e;
+ }
+
+ SpdyStream[] streamsToClose = null;
+ Ping[] pingsToCancel = null;
+ synchronized (this) {
+ if (!streams.isEmpty()) {
+ streamsToClose = streams.values().toArray(new SpdyStream[streams.size()]);
+ streams.clear();
+ setIdle(false);
+ }
+ if (pings != null) {
+ pingsToCancel = pings.values().toArray(new Ping[pings.size()]);
+ pings = null;
+ }
+ }
+
+ if (streamsToClose != null) {
+ for (SpdyStream stream : streamsToClose) {
+ try {
+ stream.close(rstStatusCode);
+ } catch (IOException e) {
+ if (thrown != null) thrown = e;
+ }
+ }
+ }
+
+ if (pingsToCancel != null) {
+ for (Ping ping : pingsToCancel) {
+ ping.cancel();
+ }
+ }
+
+ try {
+ spdyReader.close();
+ } catch (IOException e) {
+ thrown = e;
+ }
+ try {
+ spdyWriter.close();
+ } catch (IOException e) {
+ if (thrown == null) thrown = e;
+ }
+
+ if (thrown != null) throw thrown;
+ }
+
+ public static class Builder {
+ private String hostName;
+ private InputStream in;
+ private OutputStream out;
+ private IncomingStreamHandler handler = IncomingStreamHandler.REFUSE_INCOMING_STREAMS;
+ public boolean client;
+
+ public Builder(boolean client, Socket socket) throws IOException {
+ this("", client, socket.getInputStream(), socket.getOutputStream());
+ }
+
+ public Builder(boolean client, InputStream in, OutputStream out) {
+ this("", client, in, out);
+ }
+
+ /**
+ * @param client true if this peer initiated the connection; false if
+ * this peer accepted the connection.
+ */
+ public Builder(String hostName, boolean client, Socket socket) throws IOException {
+ this(hostName, client, socket.getInputStream(), socket.getOutputStream());
+ }
+
+ /**
+ * @param client true if this peer initiated the connection; false if this
+ * peer accepted the connection.
+ */
+ public Builder(String hostName, boolean client, InputStream in, OutputStream out) {
+ this.hostName = hostName;
+ this.client = client;
+ this.in = in;
+ this.out = out;
+ }
+
+ public Builder handler(IncomingStreamHandler handler) {
+ this.handler = handler;
+ return this;
+ }
+
+ public SpdyConnection build() {
+ return new SpdyConnection(this);
+ }
+ }
+
+ private class Reader implements Runnable, SpdyReader.Handler {
+ @Override public void run() {
+ int shutdownStatusCode = GOAWAY_INTERNAL_ERROR;
+ int rstStatusCode = SpdyStream.RST_INTERNAL_ERROR;
+ try {
+ while (spdyReader.nextFrame(this)) {
+ }
+ shutdownStatusCode = GOAWAY_OK;
+ rstStatusCode = SpdyStream.RST_CANCEL;
+ } catch (IOException e) {
+ shutdownStatusCode = GOAWAY_PROTOCOL_ERROR;
+ rstStatusCode = SpdyStream.RST_PROTOCOL_ERROR;
+ } finally {
+ try {
+ close(shutdownStatusCode, rstStatusCode);
+ } catch (IOException ignored) {
+ }
+ }
+ }
+
+ @Override public void data(int flags, int streamId, InputStream in, int length)
+ throws IOException {
+ SpdyStream dataStream = getStream(streamId);
+ if (dataStream == null) {
+ writeSynResetLater(streamId, SpdyStream.RST_INVALID_STREAM);
+ Util.skipByReading(in, length);
+ return;
+ }
+ dataStream.receiveData(in, length);
+ if ((flags & SpdyConnection.FLAG_FIN) != 0) {
+ dataStream.receiveFin();
+ }
+ }
+
+ @Override
+ public void synStream(int flags, int streamId, int associatedStreamId, int priority, int slot,
+ List nameValueBlock) {
+ final SpdyStream synStream;
+ final SpdyStream previous;
+ synchronized (SpdyConnection.this) {
+ synStream =
+ new SpdyStream(streamId, SpdyConnection.this, flags, priority, slot, nameValueBlock,
+ settings);
+ if (shutdown) {
+ return;
+ }
+ lastGoodStreamId = streamId;
+ previous = streams.put(streamId, synStream);
+ }
+ if (previous != null) {
+ previous.closeLater(SpdyStream.RST_PROTOCOL_ERROR);
+ removeStream(streamId);
+ return;
+ }
+
+ executor.submit(
+ new NamedRunnable(String.format("Callback %s stream %d", hostName, streamId)) {
+ @Override public void execute() {
+ try {
+ handler.receive(synStream);
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ }
+ }
+ });
+ }
+
+ @Override public void synReply(int flags, int streamId, List nameValueBlock)
+ throws IOException {
+ SpdyStream replyStream = getStream(streamId);
+ if (replyStream == null) {
+ writeSynResetLater(streamId, SpdyStream.RST_INVALID_STREAM);
+ return;
+ }
+ replyStream.receiveReply(nameValueBlock);
+ if ((flags & SpdyConnection.FLAG_FIN) != 0) {
+ replyStream.receiveFin();
+ }
+ }
+
+ @Override public void headers(int flags, int streamId, List nameValueBlock)
+ throws IOException {
+ SpdyStream replyStream = getStream(streamId);
+ if (replyStream != null) {
+ replyStream.receiveHeaders(nameValueBlock);
+ }
+ }
+
+ @Override public void rstStream(int flags, int streamId, int statusCode) {
+ SpdyStream rstStream = removeStream(streamId);
+ if (rstStream != null) {
+ rstStream.receiveRstStream(statusCode);
+ }
+ }
+
+ @Override public void settings(int flags, Settings newSettings) {
+ SpdyStream[] streamsToNotify = null;
+ synchronized (SpdyConnection.this) {
+ if (settings == null || (flags & Settings.FLAG_CLEAR_PREVIOUSLY_PERSISTED_SETTINGS) != 0) {
+ settings = newSettings;
+ } else {
+ settings.merge(newSettings);
+ }
+ if (!streams.isEmpty()) {
+ streamsToNotify = streams.values().toArray(new SpdyStream[streams.size()]);
+ }
+ }
+ if (streamsToNotify != null) {
+ for (SpdyStream stream : streamsToNotify) {
+ // The synchronization here is ugly. We need to synchronize on 'this' to guard
+ // reads to 'settings'. We synchronize on 'stream' to guard the state change.
+ // And we need to acquire the 'stream' lock first, since that may block.
+ synchronized (stream) {
+ synchronized (this) {
+ stream.receiveSettings(settings);
+ }
+ }
+ }
+ }
+ }
+
+ @Override public void noop() {
+ }
+
+ @Override public void ping(int flags, int streamId) {
+ if (client != (streamId % 2 == 1)) {
+ // Respond to a client ping if this is a server and vice versa.
+ writePingLater(streamId, null);
+ } else {
+ Ping ping = removePing(streamId);
+ if (ping != null) {
+ ping.receive();
+ }
+ }
+ }
+
+ @Override public void goAway(int flags, int lastGoodStreamId, int statusCode) {
+ synchronized (SpdyConnection.this) {
+ shutdown = true;
+
+ // Fail all streams created after the last good stream ID.
+ for (Iterator> i = streams.entrySet().iterator();
+ i.hasNext(); ) {
+ Map.Entry entry = i.next();
+ int streamId = entry.getKey();
+ if (streamId > lastGoodStreamId && entry.getValue().isLocallyInitiated()) {
+ entry.getValue().receiveRstStream(SpdyStream.RST_REFUSED_STREAM);
+ i.remove();
+ }
+ }
+ }
+ }
+
+ @Override public void windowUpdate(int flags, int streamId, int deltaWindowSize) {
+ SpdyStream stream = getStream(streamId);
+ if (stream != null) {
+ stream.receiveWindowUpdate(deltaWindowSize);
+ }
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/spdy/SpdyReader.java b/framework/src/com/squareup/okhttp/internal/spdy/SpdyReader.java
new file mode 100644
index 00000000..7a7b1987
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/spdy/SpdyReader.java
@@ -0,0 +1,318 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.spdy;
+
+import com.squareup.okhttp.internal.Util;
+import java.io.Closeable;
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.ProtocolException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Logger;
+import java.util.zip.DataFormatException;
+import java.util.zip.Inflater;
+import java.util.zip.InflaterInputStream;
+
+/** Read spdy/3 frames. */
+final class SpdyReader implements Closeable {
+ static final byte[] DICTIONARY = ("\u0000\u0000\u0000\u0007options\u0000\u0000\u0000\u0004hea"
+ + "d\u0000\u0000\u0000\u0004post\u0000\u0000\u0000\u0003put\u0000\u0000\u0000\u0006dele"
+ + "te\u0000\u0000\u0000\u0005trace\u0000\u0000\u0000\u0006accept\u0000\u0000\u0000"
+ + "\u000Eaccept-charset\u0000\u0000\u0000\u000Faccept-encoding\u0000\u0000\u0000\u000Fa"
+ + "ccept-language\u0000\u0000\u0000\raccept-ranges\u0000\u0000\u0000\u0003age\u0000"
+ + "\u0000\u0000\u0005allow\u0000\u0000\u0000\rauthorization\u0000\u0000\u0000\rcache-co"
+ + "ntrol\u0000\u0000\u0000\nconnection\u0000\u0000\u0000\fcontent-base\u0000\u0000"
+ + "\u0000\u0010content-encoding\u0000\u0000\u0000\u0010content-language\u0000\u0000"
+ + "\u0000\u000Econtent-length\u0000\u0000\u0000\u0010content-location\u0000\u0000\u0000"
+ + "\u000Bcontent-md5\u0000\u0000\u0000\rcontent-range\u0000\u0000\u0000\fcontent-type"
+ + "\u0000\u0000\u0000\u0004date\u0000\u0000\u0000\u0004etag\u0000\u0000\u0000\u0006expe"
+ + "ct\u0000\u0000\u0000\u0007expires\u0000\u0000\u0000\u0004from\u0000\u0000\u0000"
+ + "\u0004host\u0000\u0000\u0000\bif-match\u0000\u0000\u0000\u0011if-modified-since"
+ + "\u0000\u0000\u0000\rif-none-match\u0000\u0000\u0000\bif-range\u0000\u0000\u0000"
+ + "\u0013if-unmodified-since\u0000\u0000\u0000\rlast-modified\u0000\u0000\u0000\blocati"
+ + "on\u0000\u0000\u0000\fmax-forwards\u0000\u0000\u0000\u0006pragma\u0000\u0000\u0000"
+ + "\u0012proxy-authenticate\u0000\u0000\u0000\u0013proxy-authorization\u0000\u0000"
+ + "\u0000\u0005range\u0000\u0000\u0000\u0007referer\u0000\u0000\u0000\u000Bretry-after"
+ + "\u0000\u0000\u0000\u0006server\u0000\u0000\u0000\u0002te\u0000\u0000\u0000\u0007trai"
+ + "ler\u0000\u0000\u0000\u0011transfer-encoding\u0000\u0000\u0000\u0007upgrade\u0000"
+ + "\u0000\u0000\nuser-agent\u0000\u0000\u0000\u0004vary\u0000\u0000\u0000\u0003via"
+ + "\u0000\u0000\u0000\u0007warning\u0000\u0000\u0000\u0010www-authenticate\u0000\u0000"
+ + "\u0000\u0006method\u0000\u0000\u0000\u0003get\u0000\u0000\u0000\u0006status\u0000"
+ + "\u0000\u0000\u0006200 OK\u0000\u0000\u0000\u0007version\u0000\u0000\u0000\bHTTP/1.1"
+ + "\u0000\u0000\u0000\u0003url\u0000\u0000\u0000\u0006public\u0000\u0000\u0000\nset-coo"
+ + "kie\u0000\u0000\u0000\nkeep-alive\u0000\u0000\u0000\u0006origin100101201202205206300"
+ + "302303304305306307402405406407408409410411412413414415416417502504505203 Non-Authori"
+ + "tative Information204 No Content301 Moved Permanently400 Bad Request401 Unauthorized"
+ + "403 Forbidden404 Not Found500 Internal Server Error501 Not Implemented503 Service Un"
+ + "availableJan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 00:00:00 Mon, Tue, Wed, Th"
+ + "u, Fri, Sat, Sun, GMTchunked,text/html,image/png,image/jpg,image/gif,application/xml"
+ + ",application/xhtml+xml,text/plain,text/javascript,publicprivatemax-age=gzip,deflate,"
+ + "sdchcharset=utf-8charset=iso-8859-1,utf-,*,enq=0.").getBytes(Util.UTF_8);
+
+ private final DataInputStream in;
+ private final DataInputStream nameValueBlockIn;
+ private int compressedLimit;
+
+ SpdyReader(InputStream in) {
+ this.in = new DataInputStream(in);
+ this.nameValueBlockIn = newNameValueBlockStream();
+ }
+
+ /**
+ * Send the next frame to {@code handler}. Returns true unless there are no
+ * more frames on the stream.
+ */
+ public boolean nextFrame(Handler handler) throws IOException {
+ int w1;
+ try {
+ w1 = in.readInt();
+ } catch (IOException e) {
+ return false; // This might be a normal socket close.
+ }
+ int w2 = in.readInt();
+
+ boolean control = (w1 & 0x80000000) != 0;
+ int flags = (w2 & 0xff000000) >>> 24;
+ int length = (w2 & 0xffffff);
+
+ if (control) {
+ int version = (w1 & 0x7fff0000) >>> 16;
+ int type = (w1 & 0xffff);
+
+ if (version != 3) {
+ throw new ProtocolException("version != 3: " + version);
+ }
+
+ switch (type) {
+ case SpdyConnection.TYPE_SYN_STREAM:
+ readSynStream(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_SYN_REPLY:
+ readSynReply(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_RST_STREAM:
+ readRstStream(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_SETTINGS:
+ readSettings(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_NOOP:
+ if (length != 0) throw ioException("TYPE_NOOP length: %d != 0", length);
+ handler.noop();
+ return true;
+
+ case SpdyConnection.TYPE_PING:
+ readPing(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_GOAWAY:
+ readGoAway(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_HEADERS:
+ readHeaders(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_WINDOW_UPDATE:
+ readWindowUpdate(handler, flags, length);
+ return true;
+
+ case SpdyConnection.TYPE_CREDENTIAL:
+ Util.skipByReading(in, length);
+ throw new UnsupportedOperationException("TODO"); // TODO: implement
+
+ default:
+ throw new IOException("Unexpected frame");
+ }
+ } else {
+ int streamId = w1 & 0x7fffffff;
+ handler.data(flags, streamId, in, length);
+ return true;
+ }
+ }
+
+ private void readSynStream(Handler handler, int flags, int length) throws IOException {
+ int w1 = in.readInt();
+ int w2 = in.readInt();
+ int s3 = in.readShort();
+ int streamId = w1 & 0x7fffffff;
+ int associatedStreamId = w2 & 0x7fffffff;
+ int priority = (s3 & 0xe000) >>> 13;
+ int slot = s3 & 0xff;
+ List nameValueBlock = readNameValueBlock(length - 10);
+ handler.synStream(flags, streamId, associatedStreamId, priority, slot, nameValueBlock);
+ }
+
+ private void readSynReply(Handler handler, int flags, int length) throws IOException {
+ int w1 = in.readInt();
+ int streamId = w1 & 0x7fffffff;
+ List nameValueBlock = readNameValueBlock(length - 4);
+ handler.synReply(flags, streamId, nameValueBlock);
+ }
+
+ private void readRstStream(Handler handler, int flags, int length) throws IOException {
+ if (length != 8) throw ioException("TYPE_RST_STREAM length: %d != 8", length);
+ int streamId = in.readInt() & 0x7fffffff;
+ int statusCode = in.readInt();
+ handler.rstStream(flags, streamId, statusCode);
+ }
+
+ private void readHeaders(Handler handler, int flags, int length) throws IOException {
+ int w1 = in.readInt();
+ int streamId = w1 & 0x7fffffff;
+ List nameValueBlock = readNameValueBlock(length - 4);
+ handler.headers(flags, streamId, nameValueBlock);
+ }
+
+ private void readWindowUpdate(Handler handler, int flags, int length) throws IOException {
+ if (length != 8) throw ioException("TYPE_WINDOW_UPDATE length: %d != 8", length);
+ int w1 = in.readInt();
+ int w2 = in.readInt();
+ int streamId = w1 & 0x7fffffff;
+ int deltaWindowSize = w2 & 0x7fffffff;
+ handler.windowUpdate(flags, streamId, deltaWindowSize);
+ }
+
+ private DataInputStream newNameValueBlockStream() {
+ // Limit the inflater input stream to only those bytes in the Name/Value block.
+ final InputStream throttleStream = new InputStream() {
+ @Override public int read() throws IOException {
+ return Util.readSingleByte(this);
+ }
+
+ @Override public int read(byte[] buffer, int offset, int byteCount) throws IOException {
+ byteCount = Math.min(byteCount, compressedLimit);
+ int consumed = in.read(buffer, offset, byteCount);
+ compressedLimit -= consumed;
+ return consumed;
+ }
+
+ @Override public void close() throws IOException {
+ in.close();
+ }
+ };
+
+ // Subclass inflater to install a dictionary when it's needed.
+ Inflater inflater = new Inflater() {
+ @Override
+ public int inflate(byte[] buffer, int offset, int count) throws DataFormatException {
+ int result = super.inflate(buffer, offset, count);
+ if (result == 0 && needsDictionary()) {
+ setDictionary(DICTIONARY);
+ result = super.inflate(buffer, offset, count);
+ }
+ return result;
+ }
+ };
+
+ return new DataInputStream(new InflaterInputStream(throttleStream, inflater));
+ }
+
+ private List readNameValueBlock(int length) throws IOException {
+ this.compressedLimit += length;
+ try {
+ int numberOfPairs = nameValueBlockIn.readInt();
+ if (numberOfPairs < 0) {
+ Logger.getLogger(getClass().getName()).warning("numberOfPairs < 0: " + numberOfPairs);
+ throw ioException("numberOfPairs < 0");
+ }
+ List entries = new ArrayList(numberOfPairs * 2);
+ for (int i = 0; i < numberOfPairs; i++) {
+ String name = readString();
+ String values = readString();
+ if (name.length() == 0) throw ioException("name.length == 0");
+ if (values.length() == 0) throw ioException("values.length == 0");
+ entries.add(name);
+ entries.add(values);
+ }
+
+ if (compressedLimit != 0) {
+ Logger.getLogger(getClass().getName()).warning("compressedLimit > 0: " + compressedLimit);
+ }
+
+ return entries;
+ } catch (DataFormatException e) {
+ throw new IOException(e);
+ }
+ }
+
+ private String readString() throws DataFormatException, IOException {
+ int length = nameValueBlockIn.readInt();
+ byte[] bytes = new byte[length];
+ Util.readFully(nameValueBlockIn, bytes);
+ return new String(bytes, 0, length, "UTF-8");
+ }
+
+ private void readPing(Handler handler, int flags, int length) throws IOException {
+ if (length != 4) throw ioException("TYPE_PING length: %d != 4", length);
+ int id = in.readInt();
+ handler.ping(flags, id);
+ }
+
+ private void readGoAway(Handler handler, int flags, int length) throws IOException {
+ if (length != 8) throw ioException("TYPE_GOAWAY length: %d != 8", length);
+ int lastGoodStreamId = in.readInt() & 0x7fffffff;
+ int statusCode = in.readInt();
+ handler.goAway(flags, lastGoodStreamId, statusCode);
+ }
+
+ private void readSettings(Handler handler, int flags, int length) throws IOException {
+ int numberOfEntries = in.readInt();
+ if (length != 4 + 8 * numberOfEntries) {
+ throw ioException("TYPE_SETTINGS length: %d != 4 + 8 * %d", length, numberOfEntries);
+ }
+ Settings settings = new Settings();
+ for (int i = 0; i < numberOfEntries; i++) {
+ int w1 = in.readInt();
+ int value = in.readInt();
+ int idFlags = (w1 & 0xff000000) >>> 24;
+ int id = w1 & 0xffffff;
+ settings.set(id, idFlags, value);
+ }
+ handler.settings(flags, settings);
+ }
+
+ private static IOException ioException(String message, Object... args) throws IOException {
+ throw new IOException(String.format(message, args));
+ }
+
+ @Override public void close() throws IOException {
+ Util.closeAll(in, nameValueBlockIn);
+ }
+
+ public interface Handler {
+ void data(int flags, int streamId, InputStream in, int length) throws IOException;
+
+ void synStream(int flags, int streamId, int associatedStreamId, int priority, int slot,
+ List nameValueBlock);
+
+ void synReply(int flags, int streamId, List nameValueBlock) throws IOException;
+ void headers(int flags, int streamId, List nameValueBlock) throws IOException;
+ void rstStream(int flags, int streamId, int statusCode);
+ void settings(int flags, Settings settings);
+ void noop();
+ void ping(int flags, int streamId);
+ void goAway(int flags, int lastGoodStreamId, int statusCode);
+ void windowUpdate(int flags, int streamId, int deltaWindowSize);
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/spdy/SpdyStream.java b/framework/src/com/squareup/okhttp/internal/spdy/SpdyStream.java
new file mode 100644
index 00000000..744a04ea
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/spdy/SpdyStream.java
@@ -0,0 +1,733 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.spdy;
+
+import com.squareup.okhttp.internal.Util;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InterruptedIOException;
+import java.io.OutputStream;
+import java.net.SocketTimeoutException;
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.squareup.okhttp.internal.Util.checkOffsetAndCount;
+import static com.squareup.okhttp.internal.Util.pokeInt;
+import static java.nio.ByteOrder.BIG_ENDIAN;
+
+/** A logical bidirectional stream. */
+public final class SpdyStream {
+
+ // Internal state is guarded by this. No long-running or potentially
+ // blocking operations are performed while the lock is held.
+
+ private static final int DATA_FRAME_HEADER_LENGTH = 8;
+
+ private static final String[] STATUS_CODE_NAMES = {
+ null,
+ "PROTOCOL_ERROR",
+ "INVALID_STREAM",
+ "REFUSED_STREAM",
+ "UNSUPPORTED_VERSION",
+ "CANCEL",
+ "INTERNAL_ERROR",
+ "FLOW_CONTROL_ERROR",
+ "STREAM_IN_USE",
+ "STREAM_ALREADY_CLOSED",
+ "INVALID_CREDENTIALS",
+ "FRAME_TOO_LARGE"
+ };
+
+ public static final int RST_PROTOCOL_ERROR = 1;
+ public static final int RST_INVALID_STREAM = 2;
+ public static final int RST_REFUSED_STREAM = 3;
+ public static final int RST_UNSUPPORTED_VERSION = 4;
+ public static final int RST_CANCEL = 5;
+ public static final int RST_INTERNAL_ERROR = 6;
+ public static final int RST_FLOW_CONTROL_ERROR = 7;
+ public static final int RST_STREAM_IN_USE = 8;
+ public static final int RST_STREAM_ALREADY_CLOSED = 9;
+ public static final int RST_INVALID_CREDENTIALS = 10;
+ public static final int RST_FRAME_TOO_LARGE = 11;
+
+ /**
+ * The number of unacknowledged bytes at which the input stream will send
+ * the peer a {@code WINDOW_UPDATE} frame. Must be less than this client's
+ * window size, otherwise the remote peer will stop sending data on this
+ * stream. (Chrome 25 uses 5 MiB.)
+ */
+ public static final int WINDOW_UPDATE_THRESHOLD = Settings.DEFAULT_INITIAL_WINDOW_SIZE / 2;
+
+ private final int id;
+ private final SpdyConnection connection;
+ private final int priority;
+ private final int slot;
+ private long readTimeoutMillis = 0;
+ private int writeWindowSize;
+
+ /** Headers sent by the stream initiator. Immutable and non null. */
+ private final List requestHeaders;
+
+ /** Headers sent in the stream reply. Null if reply is either not sent or not sent yet. */
+ private List responseHeaders;
+
+ private final SpdyDataInputStream in = new SpdyDataInputStream();
+ private final SpdyDataOutputStream out = new SpdyDataOutputStream();
+
+ /**
+ * The reason why this stream was abnormally closed. If there are multiple
+ * reasons to abnormally close this stream (such as both peers closing it
+ * near-simultaneously) then this is the first reason known to this peer.
+ */
+ private int rstStatusCode = -1;
+
+ SpdyStream(int id, SpdyConnection connection, int flags, int priority, int slot,
+ List requestHeaders, Settings settings) {
+ if (connection == null) throw new NullPointerException("connection == null");
+ if (requestHeaders == null) throw new NullPointerException("requestHeaders == null");
+ this.id = id;
+ this.connection = connection;
+ this.priority = priority;
+ this.slot = slot;
+ this.requestHeaders = requestHeaders;
+
+ if (isLocallyInitiated()) {
+ // I am the sender
+ in.finished = (flags & SpdyConnection.FLAG_UNIDIRECTIONAL) != 0;
+ out.finished = (flags & SpdyConnection.FLAG_FIN) != 0;
+ } else {
+ // I am the receiver
+ in.finished = (flags & SpdyConnection.FLAG_FIN) != 0;
+ out.finished = (flags & SpdyConnection.FLAG_UNIDIRECTIONAL) != 0;
+ }
+
+ setSettings(settings);
+ }
+
+ /**
+ * Returns true if this stream is open. A stream is open until either:
+ *
+ * - A {@code SYN_RESET} frame abnormally terminates the stream.
+ *
- Both input and output streams have transmitted all data and
+ * headers.
+ *
+ * Note that the input stream may continue to yield data even after a stream
+ * reports itself as not open. This is because input data is buffered.
+ */
+ public synchronized boolean isOpen() {
+ if (rstStatusCode != -1) {
+ return false;
+ }
+ if ((in.finished || in.closed) && (out.finished || out.closed) && responseHeaders != null) {
+ return false;
+ }
+ return true;
+ }
+
+ /** Returns true if this stream was created by this peer. */
+ public boolean isLocallyInitiated() {
+ boolean streamIsClient = (id % 2 == 1);
+ return connection.client == streamIsClient;
+ }
+
+ public SpdyConnection getConnection() {
+ return connection;
+ }
+
+ public List getRequestHeaders() {
+ return requestHeaders;
+ }
+
+ /**
+ * Returns the stream's response headers, blocking if necessary if they
+ * have not been received yet.
+ */
+ public synchronized List getResponseHeaders() throws IOException {
+ try {
+ while (responseHeaders == null && rstStatusCode == -1) {
+ wait();
+ }
+ if (responseHeaders != null) {
+ return responseHeaders;
+ }
+ throw new IOException("stream was reset: " + rstStatusString());
+ } catch (InterruptedException e) {
+ InterruptedIOException rethrow = new InterruptedIOException();
+ rethrow.initCause(e);
+ throw rethrow;
+ }
+ }
+
+ /**
+ * Returns the reason why this stream was closed, or -1 if it closed
+ * normally or has not yet been closed. Valid reasons are {@link
+ * #RST_PROTOCOL_ERROR}, {@link #RST_INVALID_STREAM}, {@link
+ * #RST_REFUSED_STREAM}, {@link #RST_UNSUPPORTED_VERSION}, {@link
+ * #RST_CANCEL}, {@link #RST_INTERNAL_ERROR} and {@link
+ * #RST_FLOW_CONTROL_ERROR}.
+ */
+ public synchronized int getRstStatusCode() {
+ return rstStatusCode;
+ }
+
+ /**
+ * Sends a reply to an incoming stream.
+ *
+ * @param out true to create an output stream that we can use to send data
+ * to the remote peer. Corresponds to {@code FLAG_FIN}.
+ */
+ public void reply(List responseHeaders, boolean out) throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ int flags = 0;
+ synchronized (this) {
+ if (responseHeaders == null) {
+ throw new NullPointerException("responseHeaders == null");
+ }
+ if (isLocallyInitiated()) {
+ throw new IllegalStateException("cannot reply to a locally initiated stream");
+ }
+ if (this.responseHeaders != null) {
+ throw new IllegalStateException("reply already sent");
+ }
+ this.responseHeaders = responseHeaders;
+ if (!out) {
+ this.out.finished = true;
+ flags |= SpdyConnection.FLAG_FIN;
+ }
+ }
+ connection.writeSynReply(id, flags, responseHeaders);
+ }
+
+ /**
+ * Sets the maximum time to wait on input stream reads before failing with a
+ * {@code SocketTimeoutException}, or {@code 0} to wait indefinitely.
+ */
+ public void setReadTimeout(long readTimeoutMillis) {
+ this.readTimeoutMillis = readTimeoutMillis;
+ }
+
+ public long getReadTimeoutMillis() {
+ return readTimeoutMillis;
+ }
+
+ /** Returns an input stream that can be used to read data from the peer. */
+ public InputStream getInputStream() {
+ return in;
+ }
+
+ /**
+ * Returns an output stream that can be used to write data to the peer.
+ *
+ * @throws IllegalStateException if this stream was initiated by the peer
+ * and a {@link #reply} has not yet been sent.
+ */
+ public OutputStream getOutputStream() {
+ synchronized (this) {
+ if (responseHeaders == null && !isLocallyInitiated()) {
+ throw new IllegalStateException("reply before requesting the output stream");
+ }
+ }
+ return out;
+ }
+
+ /**
+ * Abnormally terminate this stream. This blocks until the {@code RST_STREAM}
+ * frame has been transmitted.
+ */
+ public void close(int rstStatusCode) throws IOException {
+ if (!closeInternal(rstStatusCode)) {
+ return; // Already closed.
+ }
+ connection.writeSynReset(id, rstStatusCode);
+ }
+
+ /**
+ * Abnormally terminate this stream. This enqueues a {@code RST_STREAM}
+ * frame and returns immediately.
+ */
+ public void closeLater(int rstStatusCode) {
+ if (!closeInternal(rstStatusCode)) {
+ return; // Already closed.
+ }
+ connection.writeSynResetLater(id, rstStatusCode);
+ }
+
+ /** Returns true if this stream was closed. */
+ private boolean closeInternal(int rstStatusCode) {
+ assert (!Thread.holdsLock(this));
+ synchronized (this) {
+ if (this.rstStatusCode != -1) {
+ return false;
+ }
+ if (in.finished && out.finished) {
+ return false;
+ }
+ this.rstStatusCode = rstStatusCode;
+ notifyAll();
+ }
+ connection.removeStream(id);
+ return true;
+ }
+
+ void receiveReply(List strings) throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ boolean streamInUseError = false;
+ boolean open = true;
+ synchronized (this) {
+ if (isLocallyInitiated() && responseHeaders == null) {
+ responseHeaders = strings;
+ open = isOpen();
+ notifyAll();
+ } else {
+ streamInUseError = true;
+ }
+ }
+ if (streamInUseError) {
+ closeLater(SpdyStream.RST_STREAM_IN_USE);
+ } else if (!open) {
+ connection.removeStream(id);
+ }
+ }
+
+ void receiveHeaders(List headers) throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ boolean protocolError = false;
+ synchronized (this) {
+ if (responseHeaders != null) {
+ List newHeaders = new ArrayList();
+ newHeaders.addAll(responseHeaders);
+ newHeaders.addAll(headers);
+ this.responseHeaders = newHeaders;
+ } else {
+ protocolError = true;
+ }
+ }
+ if (protocolError) {
+ closeLater(SpdyStream.RST_PROTOCOL_ERROR);
+ }
+ }
+
+ void receiveData(InputStream in, int length) throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ this.in.receive(in, length);
+ }
+
+ void receiveFin() {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ boolean open;
+ synchronized (this) {
+ this.in.finished = true;
+ open = isOpen();
+ notifyAll();
+ }
+ if (!open) {
+ connection.removeStream(id);
+ }
+ }
+
+ synchronized void receiveRstStream(int statusCode) {
+ if (rstStatusCode == -1) {
+ rstStatusCode = statusCode;
+ notifyAll();
+ }
+ }
+
+ private void setSettings(Settings settings) {
+ assert (Thread.holdsLock(connection)); // Because 'settings' is guarded by 'connection'.
+ this.writeWindowSize =
+ settings != null ? settings.getInitialWindowSize(Settings.DEFAULT_INITIAL_WINDOW_SIZE)
+ : Settings.DEFAULT_INITIAL_WINDOW_SIZE;
+ }
+
+ void receiveSettings(Settings settings) {
+ assert (Thread.holdsLock(this));
+ setSettings(settings);
+ notifyAll();
+ }
+
+ synchronized void receiveWindowUpdate(int deltaWindowSize) {
+ out.unacknowledgedBytes -= deltaWindowSize;
+ notifyAll();
+ }
+
+ private String rstStatusString() {
+ return rstStatusCode > 0 && rstStatusCode < STATUS_CODE_NAMES.length
+ ? STATUS_CODE_NAMES[rstStatusCode] : Integer.toString(rstStatusCode);
+ }
+
+ int getPriority() {
+ return priority;
+ }
+
+ int getSlot() {
+ return slot;
+ }
+
+ /**
+ * An input stream that reads the incoming data frames of a stream. Although
+ * this class uses synchronization to safely receive incoming data frames,
+ * it is not intended for use by multiple readers.
+ */
+ private final class SpdyDataInputStream extends InputStream {
+ // Store incoming data bytes in a circular buffer. When the buffer is
+ // empty, pos == -1. Otherwise pos is the first byte to read and limit
+ // is the first byte to write.
+ //
+ // { - - - X X X X - - - }
+ // ^ ^
+ // pos limit
+ //
+ // { X X X - - - - X X X }
+ // ^ ^
+ // limit pos
+
+ private final byte[] buffer = new byte[Settings.DEFAULT_INITIAL_WINDOW_SIZE];
+
+ /** the next byte to be read, or -1 if the buffer is empty. Never buffer.length */
+ private int pos = -1;
+
+ /** the last byte to be read. Never buffer.length */
+ private int limit;
+
+ /** True if the caller has closed this stream. */
+ private boolean closed;
+
+ /**
+ * True if either side has cleanly shut down this stream. We will
+ * receive no more bytes beyond those already in the buffer.
+ */
+ private boolean finished;
+
+ /**
+ * The total number of bytes consumed by the application (with {@link
+ * #read}), but not yet acknowledged by sending a {@code WINDOW_UPDATE}
+ * frame.
+ */
+ private int unacknowledgedBytes = 0;
+
+ @Override public int available() throws IOException {
+ synchronized (SpdyStream.this) {
+ checkNotClosed();
+ if (pos == -1) {
+ return 0;
+ } else if (limit > pos) {
+ return limit - pos;
+ } else {
+ return limit + (buffer.length - pos);
+ }
+ }
+ }
+
+ @Override public int read() throws IOException {
+ return Util.readSingleByte(this);
+ }
+
+ @Override public int read(byte[] b, int offset, int count) throws IOException {
+ synchronized (SpdyStream.this) {
+ checkOffsetAndCount(b.length, offset, count);
+ waitUntilReadable();
+ checkNotClosed();
+
+ if (pos == -1) {
+ return -1;
+ }
+
+ int copied = 0;
+
+ // drain from [pos..buffer.length)
+ if (limit <= pos) {
+ int bytesToCopy = Math.min(count, buffer.length - pos);
+ System.arraycopy(buffer, pos, b, offset, bytesToCopy);
+ pos += bytesToCopy;
+ copied += bytesToCopy;
+ if (pos == buffer.length) {
+ pos = 0;
+ }
+ }
+
+ // drain from [pos..limit)
+ if (copied < count) {
+ int bytesToCopy = Math.min(limit - pos, count - copied);
+ System.arraycopy(buffer, pos, b, offset + copied, bytesToCopy);
+ pos += bytesToCopy;
+ copied += bytesToCopy;
+ }
+
+ // Flow control: notify the peer that we're ready for more data!
+ unacknowledgedBytes += copied;
+ if (unacknowledgedBytes >= WINDOW_UPDATE_THRESHOLD) {
+ connection.writeWindowUpdateLater(id, unacknowledgedBytes);
+ unacknowledgedBytes = 0;
+ }
+
+ if (pos == limit) {
+ pos = -1;
+ limit = 0;
+ }
+
+ return copied;
+ }
+ }
+
+ /**
+ * Returns once the input stream is either readable or finished. Throws
+ * a {@link SocketTimeoutException} if the read timeout elapses before
+ * that happens.
+ */
+ private void waitUntilReadable() throws IOException {
+ long start = 0;
+ long remaining = 0;
+ if (readTimeoutMillis != 0) {
+ start = (System.nanoTime() / 1000000);
+ remaining = readTimeoutMillis;
+ }
+ try {
+ while (pos == -1 && !finished && !closed && rstStatusCode == -1) {
+ if (readTimeoutMillis == 0) {
+ SpdyStream.this.wait();
+ } else if (remaining > 0) {
+ SpdyStream.this.wait(remaining);
+ remaining = start + readTimeoutMillis - (System.nanoTime() / 1000000);
+ } else {
+ throw new SocketTimeoutException();
+ }
+ }
+ } catch (InterruptedException e) {
+ throw new InterruptedIOException();
+ }
+ }
+
+ void receive(InputStream in, int byteCount) throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+
+ if (byteCount == 0) {
+ return;
+ }
+
+ int pos;
+ int limit;
+ int firstNewByte;
+ boolean finished;
+ boolean flowControlError;
+ synchronized (SpdyStream.this) {
+ finished = this.finished;
+ pos = this.pos;
+ firstNewByte = this.limit;
+ limit = this.limit;
+ flowControlError = byteCount > buffer.length - available();
+ }
+
+ // If the peer sends more data than we can handle, discard it and close the connection.
+ if (flowControlError) {
+ Util.skipByReading(in, byteCount);
+ closeLater(SpdyStream.RST_FLOW_CONTROL_ERROR);
+ return;
+ }
+
+ // Discard data received after the stream is finished. It's probably a benign race.
+ if (finished) {
+ Util.skipByReading(in, byteCount);
+ return;
+ }
+
+ // Fill the buffer without holding any locks. First fill [limit..buffer.length) if that
+ // won't overwrite unread data. Then fill [limit..pos). We can't hold a lock, otherwise
+ // writes will be blocked until reads complete.
+ if (pos < limit) {
+ int firstCopyCount = Math.min(byteCount, buffer.length - limit);
+ Util.readFully(in, buffer, limit, firstCopyCount);
+ limit += firstCopyCount;
+ byteCount -= firstCopyCount;
+ if (limit == buffer.length) {
+ limit = 0;
+ }
+ }
+ if (byteCount > 0) {
+ Util.readFully(in, buffer, limit, byteCount);
+ limit += byteCount;
+ }
+
+ synchronized (SpdyStream.this) {
+ // Update the new limit, and mark the position as readable if necessary.
+ this.limit = limit;
+ if (this.pos == -1) {
+ this.pos = firstNewByte;
+ SpdyStream.this.notifyAll();
+ }
+ }
+ }
+
+ @Override public void close() throws IOException {
+ synchronized (SpdyStream.this) {
+ closed = true;
+ SpdyStream.this.notifyAll();
+ }
+ cancelStreamIfNecessary();
+ }
+
+ private void checkNotClosed() throws IOException {
+ if (closed) {
+ throw new IOException("stream closed");
+ }
+ if (rstStatusCode != -1) {
+ throw new IOException("stream was reset: " + rstStatusString());
+ }
+ }
+ }
+
+ private void cancelStreamIfNecessary() throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ boolean open;
+ boolean cancel;
+ synchronized (this) {
+ cancel = !in.finished && in.closed && (out.finished || out.closed);
+ open = isOpen();
+ }
+ if (cancel) {
+ // RST this stream to prevent additional data from being sent. This
+ // is safe because the input stream is closed (we won't use any
+ // further bytes) and the output stream is either finished or closed
+ // (so RSTing both streams doesn't cause harm).
+ SpdyStream.this.close(RST_CANCEL);
+ } else if (!open) {
+ connection.removeStream(id);
+ }
+ }
+
+ /**
+ * An output stream that writes outgoing data frames of a stream. This class
+ * is not thread safe.
+ */
+ private final class SpdyDataOutputStream extends OutputStream {
+ private final byte[] buffer = new byte[8192];
+ private int pos = DATA_FRAME_HEADER_LENGTH;
+
+ /** True if the caller has closed this stream. */
+ private boolean closed;
+
+ /**
+ * True if either side has cleanly shut down this stream. We shall send
+ * no more bytes.
+ */
+ private boolean finished;
+
+ /**
+ * The total number of bytes written out to the peer, but not yet
+ * acknowledged with an incoming {@code WINDOW_UPDATE} frame. Writes
+ * block if they cause this to exceed the {@code WINDOW_SIZE}.
+ */
+ private int unacknowledgedBytes = 0;
+
+ @Override public void write(int b) throws IOException {
+ Util.writeSingleByte(this, b);
+ }
+
+ @Override public void write(byte[] bytes, int offset, int count) throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ checkOffsetAndCount(bytes.length, offset, count);
+ checkNotClosed();
+
+ while (count > 0) {
+ if (pos == buffer.length) {
+ writeFrame(false);
+ }
+ int bytesToCopy = Math.min(count, buffer.length - pos);
+ System.arraycopy(bytes, offset, buffer, pos, bytesToCopy);
+ pos += bytesToCopy;
+ offset += bytesToCopy;
+ count -= bytesToCopy;
+ }
+ }
+
+ @Override public void flush() throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ checkNotClosed();
+ if (pos > DATA_FRAME_HEADER_LENGTH) {
+ writeFrame(false);
+ connection.flush();
+ }
+ }
+
+ @Override public void close() throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+ synchronized (SpdyStream.this) {
+ if (closed) {
+ return;
+ }
+ closed = true;
+ }
+ writeFrame(true);
+ connection.flush();
+ cancelStreamIfNecessary();
+ }
+
+ private void writeFrame(boolean last) throws IOException {
+ assert (!Thread.holdsLock(SpdyStream.this));
+
+ int length = pos - DATA_FRAME_HEADER_LENGTH;
+ synchronized (SpdyStream.this) {
+ waitUntilWritable(length, last);
+ unacknowledgedBytes += length;
+ }
+ int flags = 0;
+ if (last) {
+ flags |= SpdyConnection.FLAG_FIN;
+ }
+ pokeInt(buffer, 0, id & 0x7fffffff, BIG_ENDIAN);
+ pokeInt(buffer, 4, (flags & 0xff) << 24 | length & 0xffffff, BIG_ENDIAN);
+ connection.writeFrame(buffer, 0, pos);
+ pos = DATA_FRAME_HEADER_LENGTH;
+ }
+
+ /**
+ * Returns once the peer is ready to receive {@code count} bytes.
+ *
+ * @throws IOException if the stream was finished or closed, or the
+ * thread was interrupted.
+ */
+ private void waitUntilWritable(int count, boolean last) throws IOException {
+ try {
+ while (unacknowledgedBytes + count >= writeWindowSize) {
+ SpdyStream.this.wait(); // Wait until we receive a WINDOW_UPDATE.
+
+ // The stream may have been closed or reset while we were waiting!
+ if (!last && closed) {
+ throw new IOException("stream closed");
+ } else if (finished) {
+ throw new IOException("stream finished");
+ } else if (rstStatusCode != -1) {
+ throw new IOException("stream was reset: " + rstStatusString());
+ }
+ }
+ } catch (InterruptedException e) {
+ throw new InterruptedIOException();
+ }
+ }
+
+ private void checkNotClosed() throws IOException {
+ synchronized (SpdyStream.this) {
+ if (closed) {
+ throw new IOException("stream closed");
+ } else if (finished) {
+ throw new IOException("stream finished");
+ } else if (rstStatusCode != -1) {
+ throw new IOException("stream was reset: " + rstStatusString());
+ }
+ }
+ }
+ }
+}
diff --git a/framework/src/com/squareup/okhttp/internal/spdy/SpdyWriter.java b/framework/src/com/squareup/okhttp/internal/spdy/SpdyWriter.java
new file mode 100644
index 00000000..b3d1d1f9
--- /dev/null
+++ b/framework/src/com/squareup/okhttp/internal/spdy/SpdyWriter.java
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.squareup.okhttp.internal.spdy;
+
+import com.squareup.okhttp.internal.Platform;
+import com.squareup.okhttp.internal.Util;
+import java.io.ByteArrayOutputStream;
+import java.io.Closeable;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.zip.Deflater;
+
+/** Write spdy/3 frames. */
+final class SpdyWriter implements Closeable {
+ final DataOutputStream out;
+ private final ByteArrayOutputStream nameValueBlockBuffer;
+ private final DataOutputStream nameValueBlockOut;
+
+ SpdyWriter(OutputStream out) {
+ this.out = new DataOutputStream(out);
+
+ Deflater deflater = new Deflater();
+ deflater.setDictionary(SpdyReader.DICTIONARY);
+ nameValueBlockBuffer = new ByteArrayOutputStream();
+ nameValueBlockOut = new DataOutputStream(
+ Platform.get().newDeflaterOutputStream(nameValueBlockBuffer, deflater, true));
+ }
+
+ public synchronized void synStream(int flags, int streamId, int associatedStreamId, int priority,
+ int slot, List nameValueBlock) throws IOException {
+ writeNameValueBlockToBuffer(nameValueBlock);
+ int length = 10 + nameValueBlockBuffer.size();
+ int type = SpdyConnection.TYPE_SYN_STREAM;
+
+ int unused = 0;
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(streamId & 0x7fffffff);
+ out.writeInt(associatedStreamId & 0x7fffffff);
+ out.writeShort((priority & 0x7) << 13 | (unused & 0x1f) << 8 | (slot & 0xff));
+ nameValueBlockBuffer.writeTo(out);
+ out.flush();
+ }
+
+ public synchronized void synReply(int flags, int streamId, List nameValueBlock)
+ throws IOException {
+ writeNameValueBlockToBuffer(nameValueBlock);
+ int type = SpdyConnection.TYPE_SYN_REPLY;
+ int length = nameValueBlockBuffer.size() + 4;
+
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(streamId & 0x7fffffff);
+ nameValueBlockBuffer.writeTo(out);
+ out.flush();
+ }
+
+ public synchronized void headers(int flags, int streamId, List nameValueBlock)
+ throws IOException {
+ writeNameValueBlockToBuffer(nameValueBlock);
+ int type = SpdyConnection.TYPE_HEADERS;
+ int length = nameValueBlockBuffer.size() + 4;
+
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(streamId & 0x7fffffff);
+ nameValueBlockBuffer.writeTo(out);
+ out.flush();
+ }
+
+ public synchronized void rstStream(int streamId, int statusCode) throws IOException {
+ int flags = 0;
+ int type = SpdyConnection.TYPE_RST_STREAM;
+ int length = 8;
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(streamId & 0x7fffffff);
+ out.writeInt(statusCode);
+ out.flush();
+ }
+
+ public synchronized void data(int flags, int streamId, byte[] data) throws IOException {
+ int length = data.length;
+ out.writeInt(streamId & 0x7fffffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.write(data);
+ out.flush();
+ }
+
+ private void writeNameValueBlockToBuffer(List nameValueBlock) throws IOException {
+ nameValueBlockBuffer.reset();
+ int numberOfPairs = nameValueBlock.size() / 2;
+ nameValueBlockOut.writeInt(numberOfPairs);
+ for (String s : nameValueBlock) {
+ nameValueBlockOut.writeInt(s.length());
+ nameValueBlockOut.write(s.getBytes("UTF-8"));
+ }
+ nameValueBlockOut.flush();
+ }
+
+ public synchronized void settings(int flags, Settings settings) throws IOException {
+ int type = SpdyConnection.TYPE_SETTINGS;
+ int size = settings.size();
+ int length = 4 + size * 8;
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(size);
+ for (int i = 0; i <= Settings.COUNT; i++) {
+ if (!settings.isSet(i)) continue;
+ int settingsFlags = settings.flags(i);
+ out.writeInt((settingsFlags & 0xff) << 24 | (i & 0xffffff));
+ out.writeInt(settings.get(i));
+ }
+ out.flush();
+ }
+
+ public synchronized void noop() throws IOException {
+ int type = SpdyConnection.TYPE_NOOP;
+ int length = 0;
+ int flags = 0;
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.flush();
+ }
+
+ public synchronized void ping(int flags, int id) throws IOException {
+ int type = SpdyConnection.TYPE_PING;
+ int length = 4;
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(id);
+ out.flush();
+ }
+
+ public synchronized void goAway(int flags, int lastGoodStreamId, int statusCode)
+ throws IOException {
+ int type = SpdyConnection.TYPE_GOAWAY;
+ int length = 8;
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(lastGoodStreamId);
+ out.writeInt(statusCode);
+ out.flush();
+ }
+
+ public synchronized void windowUpdate(int streamId, int deltaWindowSize) throws IOException {
+ int type = SpdyConnection.TYPE_WINDOW_UPDATE;
+ int flags = 0;
+ int length = 8;
+ out.writeInt(0x80000000 | (SpdyConnection.VERSION & 0x7fff) << 16 | type & 0xffff);
+ out.writeInt((flags & 0xff) << 24 | length & 0xffffff);
+ out.writeInt(streamId);
+ out.writeInt(deltaWindowSize);
+ out.flush();
+ }
+
+ @Override public void close() throws IOException {
+ Util.closeAll(out, nameValueBlockOut);
+ }
+}
diff --git a/framework/src/org/apache/cordova/FileTransfer.java b/framework/src/org/apache/cordova/FileTransfer.java
index c1ca15cf..3216a45d 100644
--- a/framework/src/org/apache/cordova/FileTransfer.java
+++ b/framework/src/org/apache/cordova/FileTransfer.java
@@ -64,6 +64,8 @@ import android.os.Build;
import android.util.Log;
import android.webkit.CookieManager;
+import com.squareup.okhttp.OkHttpClient;
+
public class FileTransfer extends CordovaPlugin {
private static final String LOG_TAG = "FileTransfer";
@@ -79,6 +81,8 @@ public class FileTransfer extends CordovaPlugin {
private static HashMap activeRequests = new HashMap();
private static final int MAX_BUFFER_SIZE = 16 * 1024;
+ private static OkHttpClient httpClient = new OkHttpClient();
+
private static final class RequestContext {
String source;
String target;
@@ -327,13 +331,13 @@ public class FileTransfer extends CordovaPlugin {
if (useHttps) {
// Using standard HTTPS connection. Will not allow self signed certificate
if (!trustEveryone) {
- conn = (HttpsURLConnection) url.openConnection();
+ conn = (HttpsURLConnection) httpClient.open(url);
}
// Use our HTTPS connection that blindly trusts everyone.
// This should only be used in debug environments
else {
// Setup the HTTPS connection class to trust everyone
- HttpsURLConnection https = (HttpsURLConnection) url.openConnection();
+ HttpsURLConnection https = (HttpsURLConnection) httpClient.open(url);
oldSocketFactory = trustAllHosts(https);
// Save the current hostnameVerifier
oldHostnameVerifier = https.getHostnameVerifier();
@@ -344,7 +348,7 @@ public class FileTransfer extends CordovaPlugin {
}
// Return a standard HTTP connection
else {
- conn = (HttpURLConnection) url.openConnection();
+ conn = httpClient.open(url);
}
// Allow Inputs
@@ -749,13 +753,13 @@ public class FileTransfer extends CordovaPlugin {
if (useHttps) {
// Using standard HTTPS connection. Will not allow self signed certificate
if (!trustEveryone) {
- connection = (HttpsURLConnection) url.openConnection();
+ connection = (HttpsURLConnection) httpClient.open(url);
}
// Use our HTTPS connection that blindly trusts everyone.
// This should only be used in debug environments
else {
// Setup the HTTPS connection class to trust everyone
- HttpsURLConnection https = (HttpsURLConnection) url.openConnection();
+ HttpsURLConnection https = (HttpsURLConnection) httpClient.open(url);
oldSocketFactory = trustAllHosts(https);
// Save the current hostnameVerifier
oldHostnameVerifier = https.getHostnameVerifier();
@@ -766,7 +770,8 @@ public class FileTransfer extends CordovaPlugin {
}
// Return a standard HTTP connection
else {
- connection = url.openConnection();
+ connection = httpClient.open(url);
+
}
if (connection instanceof HttpURLConnection) {