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authorDaniel J Walsh <dwalsh@redhat.com>2018-03-26 18:26:55 -0400
committerAtomic Bot <atomic-devel@projectatomic.io>2018-03-27 18:09:12 +0000
commitaf64e10400f8533a0c48ecdf5ab9b7fbf329e14e (patch)
tree59160e3841b440dd35189c724bbb4375a7be173b /vendor/k8s.io/client-go/transport/spdy
parent26d7e3c7b85e28c4e42998c90fdcc14079f13eef (diff)
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Vendor in lots of kubernetes stuff to shrink image size
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #554 Approved by: mheon
Diffstat (limited to 'vendor/k8s.io/client-go/transport/spdy')
-rw-r--r--vendor/k8s.io/client-go/transport/spdy/spdy.go94
1 files changed, 94 insertions, 0 deletions
diff --git a/vendor/k8s.io/client-go/transport/spdy/spdy.go b/vendor/k8s.io/client-go/transport/spdy/spdy.go
new file mode 100644
index 000000000..e0eb468ba
--- /dev/null
+++ b/vendor/k8s.io/client-go/transport/spdy/spdy.go
@@ -0,0 +1,94 @@
+/*
+Copyright 2017 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 spdy
+
+import (
+ "fmt"
+ "net/http"
+ "net/url"
+
+ "k8s.io/apimachinery/pkg/util/httpstream"
+ "k8s.io/apimachinery/pkg/util/httpstream/spdy"
+ restclient "k8s.io/client-go/rest"
+)
+
+// Upgrader validates a response from the server after a SPDY upgrade.
+type Upgrader interface {
+ // NewConnection validates the response and creates a new Connection.
+ NewConnection(resp *http.Response) (httpstream.Connection, error)
+}
+
+// RoundTripperFor returns a round tripper and upgrader to use with SPDY.
+func RoundTripperFor(config *restclient.Config) (http.RoundTripper, Upgrader, error) {
+ tlsConfig, err := restclient.TLSConfigFor(config)
+ if err != nil {
+ return nil, nil, err
+ }
+ upgradeRoundTripper := spdy.NewRoundTripper(tlsConfig, true)
+ wrapper, err := restclient.HTTPWrappersForConfig(config, upgradeRoundTripper)
+ if err != nil {
+ return nil, nil, err
+ }
+ return wrapper, upgradeRoundTripper, nil
+}
+
+// dialer implements the httpstream.Dialer interface.
+type dialer struct {
+ client *http.Client
+ upgrader Upgrader
+ method string
+ url *url.URL
+}
+
+var _ httpstream.Dialer = &dialer{}
+
+// NewDialer will create a dialer that connects to the provided URL and upgrades the connection to SPDY.
+func NewDialer(upgrader Upgrader, client *http.Client, method string, url *url.URL) httpstream.Dialer {
+ return &dialer{
+ client: client,
+ upgrader: upgrader,
+ method: method,
+ url: url,
+ }
+}
+
+func (d *dialer) Dial(protocols ...string) (httpstream.Connection, string, error) {
+ req, err := http.NewRequest(d.method, d.url.String(), nil)
+ if err != nil {
+ return nil, "", fmt.Errorf("error creating request: %v", err)
+ }
+ return Negotiate(d.upgrader, d.client, req, protocols...)
+}
+
+// Negotiate opens a connection to a remote server and attempts to negotiate
+// a SPDY connection. Upon success, it returns the connection and the protocol selected by
+// the server. The client transport must use the upgradeRoundTripper - see RoundTripperFor.
+func Negotiate(upgrader Upgrader, client *http.Client, req *http.Request, protocols ...string) (httpstream.Connection, string, error) {
+ for i := range protocols {
+ req.Header.Add(httpstream.HeaderProtocolVersion, protocols[i])
+ }
+ resp, err := client.Do(req)
+ if err != nil {
+ return nil, "", fmt.Errorf("error sending request: %v", err)
+ }
+ defer resp.Body.Close()
+ conn, err := upgrader.NewConnection(resp)
+ if err != nil {
+ return nil, "", err
+ }
+ return conn, resp.Header.Get(httpstream.HeaderProtocolVersion), nil
+}