Merge commit '86cc97e55fe346502462284d2e636a2b3708163e' as 'Sources/OpenVPN3'

Sources/OpenVPN3/openvpn/http/header.hpp

@@ -0,0 +1,112 @@
+//    OpenVPN -- An application to securely tunnel IP networks
+//               over a single port, with support for SSL/TLS-based
+//               session authentication and key exchange,
+//               packet encryption, packet authentication, and
+//               packet compression.
+//
+//    Copyright (C) 2012-2017 OpenVPN Inc.
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Affero General Public License Version 3
+//    as published by the Free Software Foundation.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Affero General Public License for more details.
+//
+//    You should have received a copy of the GNU Affero General Public License
+//    along with this program in the COPYING file.
+//    If not, see <http://www.gnu.org/licenses/>.
+
+// Denote the data in an HTTP header
+
+#ifndef OPENVPN_HTTP_HEADER_H
+#define OPENVPN_HTTP_HEADER_H
+
+#include <string>
+#include <sstream>
+#include <utility>
+
+#include <openvpn/common/size.hpp>
+#include <openvpn/common/exception.hpp>
+#include <openvpn/common/string.hpp>
+
+namespace openvpn {
+  namespace HTTP {
+
+    struct Header {
+      Header() {}
+      Header(std::string name_arg, std::string value_arg)
+	: name(std::move(name_arg)), value(std::move(value_arg)) {}
+
+      bool name_match(const std::string& n) const
+      {
+	return string::strcasecmp(n, name) == 0;
+      }
+
+      std::string to_string() const
+      {
+	std::ostringstream out;
+	out << name << '=' << value;
+	return out.str();
+      }
+
+      std::string name;
+      std::string value;
+    };
+
+    struct HeaderList : public std::vector<Header>
+    {
+      const Header* get(const std::string& key) const
+      {
+	for (auto &h : *this)
+	  {
+	    if (h.name_match(key))
+	      return &h;
+	  }
+	return nullptr;
+      }
+
+      Header* get(const std::string& key)
+      {
+	for (auto &h : *this)
+	  {
+	    if (h.name_match(key))
+	      return &h;
+	  }
+	return nullptr;
+      }
+
+      std::string get_value(const std::string& key) const
+      {
+	const Header* h = get(key);
+	if (h)
+	  return h->value;
+	else
+	  return "";
+      }
+
+      std::string get_value_trim(const std::string& key) const
+      {
+	return string::trim_copy(get_value(key));
+      }
+
+      std::string get_value_trim_lower(const std::string& key) const
+      {
+	return string::to_lower_copy(get_value_trim(key));
+      }
+
+      std::string to_string() const
+      {
+	std::ostringstream out;
+	for (size_t i = 0; i < size(); ++i)
+	  out << '[' << i << "] " << (*this)[i].to_string() << std::endl;
+	return out.str();
+      }      
+    };
+
+  }
+}
+
+#endif