sample-controller/vendor/k8s.io/client-go/transport/cache.go
Kubernetes Publisher c0feae0701 Merge pull request #63059 from ceshihao/upgrade_json_package_fix_base64_newline
Automatic merge from submit-queue (batch tested with PRs 59965, 59115, 63076, 63059). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Upgrade dep json-iterator/go to fix base64 decode bug

**What this PR does / why we need it**:
upgrade dep `json-iterator/go` to fix base64 decode bug #62742

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #62742

**Special notes for your reviewer**:
Just upgrade `json-iterator/go` to latest which includes base64 decode fix https://github.com/json-iterator/go/pull/266
No other code changes

**Release note**:

```release-note
None
```

Kubernetes-commit: 3dbcd1ddcee786f443f89a82514bbd9c6ad06c99
2018-04-26 07:24:17 +00:00

116 lines
3.1 KiB
Go

/*
Copyright 2015 The Kubernetes Authors.
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 transport
import (
"fmt"
"net"
"net/http"
"sync"
"time"
utilnet "k8s.io/apimachinery/pkg/util/net"
)
// TlsTransportCache caches TLS http.RoundTrippers different configurations. The
// same RoundTripper will be returned for configs with identical TLS options If
// the config has no custom TLS options, http.DefaultTransport is returned.
type tlsTransportCache struct {
mu sync.Mutex
transports map[tlsCacheKey]*http.Transport
}
const idleConnsPerHost = 25
var tlsCache = &tlsTransportCache{transports: make(map[tlsCacheKey]*http.Transport)}
type tlsCacheKey struct {
insecure bool
caData string
certData string
keyData string
serverName string
dial string
}
func (t tlsCacheKey) String() string {
keyText := "<none>"
if len(t.keyData) > 0 {
keyText = "<redacted>"
}
return fmt.Sprintf("insecure:%v, caData:%#v, certData:%#v, keyData:%s, serverName:%s, dial:%s", t.insecure, t.caData, t.certData, keyText, t.serverName, t.dial)
}
func (c *tlsTransportCache) get(config *Config) (http.RoundTripper, error) {
key, err := tlsConfigKey(config)
if err != nil {
return nil, err
}
// Ensure we only create a single transport for the given TLS options
c.mu.Lock()
defer c.mu.Unlock()
// See if we already have a custom transport for this config
if t, ok := c.transports[key]; ok {
return t, nil
}
// Get the TLS options for this client config
tlsConfig, err := TLSConfigFor(config)
if err != nil {
return nil, err
}
// The options didn't require a custom TLS config
if tlsConfig == nil && config.Dial == nil {
return http.DefaultTransport, nil
}
dial := config.Dial
if dial == nil {
dial = (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial
}
// Cache a single transport for these options
c.transports[key] = utilnet.SetTransportDefaults(&http.Transport{
Proxy: http.ProxyFromEnvironment,
TLSHandshakeTimeout: 10 * time.Second,
TLSClientConfig: tlsConfig,
MaxIdleConnsPerHost: idleConnsPerHost,
Dial: dial,
})
return c.transports[key], nil
}
// tlsConfigKey returns a unique key for tls.Config objects returned from TLSConfigFor
func tlsConfigKey(c *Config) (tlsCacheKey, error) {
// Make sure ca/key/cert content is loaded
if err := loadTLSFiles(c); err != nil {
return tlsCacheKey{}, err
}
return tlsCacheKey{
insecure: c.TLS.Insecure,
caData: string(c.TLS.CAData),
certData: string(c.TLS.CertData),
keyData: string(c.TLS.KeyData),
serverName: c.TLS.ServerName,
dial: fmt.Sprintf("%p", c.Dial),
}, nil
}