David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame] | 1 | // Copyright 2016 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // +build go1.7 |
| 6 | |
| 7 | package http2 |
| 8 | |
| 9 | import ( |
| 10 | "context" |
| 11 | "net" |
| 12 | "net/http" |
| 13 | "net/http/httptrace" |
| 14 | "time" |
| 15 | ) |
| 16 | |
| 17 | type contextContext interface { |
| 18 | context.Context |
| 19 | } |
| 20 | |
| 21 | func serverConnBaseContext(c net.Conn, opts *ServeConnOpts) (ctx contextContext, cancel func()) { |
| 22 | ctx, cancel = context.WithCancel(context.Background()) |
| 23 | ctx = context.WithValue(ctx, http.LocalAddrContextKey, c.LocalAddr()) |
| 24 | if hs := opts.baseConfig(); hs != nil { |
| 25 | ctx = context.WithValue(ctx, http.ServerContextKey, hs) |
| 26 | } |
| 27 | return |
| 28 | } |
| 29 | |
| 30 | func contextWithCancel(ctx contextContext) (_ contextContext, cancel func()) { |
| 31 | return context.WithCancel(ctx) |
| 32 | } |
| 33 | |
| 34 | func requestWithContext(req *http.Request, ctx contextContext) *http.Request { |
| 35 | return req.WithContext(ctx) |
| 36 | } |
| 37 | |
| 38 | type clientTrace httptrace.ClientTrace |
| 39 | |
| 40 | func reqContext(r *http.Request) context.Context { return r.Context() } |
| 41 | |
| 42 | func (t *Transport) idleConnTimeout() time.Duration { |
| 43 | if t.t1 != nil { |
| 44 | return t.t1.IdleConnTimeout |
| 45 | } |
| 46 | return 0 |
| 47 | } |
| 48 | |
| 49 | func setResponseUncompressed(res *http.Response) { res.Uncompressed = true } |
| 50 | |
| 51 | func traceGotConn(req *http.Request, cc *ClientConn) { |
| 52 | trace := httptrace.ContextClientTrace(req.Context()) |
| 53 | if trace == nil || trace.GotConn == nil { |
| 54 | return |
| 55 | } |
| 56 | ci := httptrace.GotConnInfo{Conn: cc.tconn} |
| 57 | cc.mu.Lock() |
| 58 | ci.Reused = cc.nextStreamID > 1 |
| 59 | ci.WasIdle = len(cc.streams) == 0 && ci.Reused |
| 60 | if ci.WasIdle && !cc.lastActive.IsZero() { |
| 61 | ci.IdleTime = time.Now().Sub(cc.lastActive) |
| 62 | } |
| 63 | cc.mu.Unlock() |
| 64 | |
| 65 | trace.GotConn(ci) |
| 66 | } |
| 67 | |
| 68 | func traceWroteHeaders(trace *clientTrace) { |
| 69 | if trace != nil && trace.WroteHeaders != nil { |
| 70 | trace.WroteHeaders() |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | func traceGot100Continue(trace *clientTrace) { |
| 75 | if trace != nil && trace.Got100Continue != nil { |
| 76 | trace.Got100Continue() |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | func traceWait100Continue(trace *clientTrace) { |
| 81 | if trace != nil && trace.Wait100Continue != nil { |
| 82 | trace.Wait100Continue() |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | func traceWroteRequest(trace *clientTrace, err error) { |
| 87 | if trace != nil && trace.WroteRequest != nil { |
| 88 | trace.WroteRequest(httptrace.WroteRequestInfo{Err: err}) |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | func traceFirstResponseByte(trace *clientTrace) { |
| 93 | if trace != nil && trace.GotFirstResponseByte != nil { |
| 94 | trace.GotFirstResponseByte() |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | func requestTrace(req *http.Request) *clientTrace { |
| 99 | trace := httptrace.ContextClientTrace(req.Context()) |
| 100 | return (*clientTrace)(trace) |
| 101 | } |
| 102 | |
| 103 | // Ping sends a PING frame to the server and waits for the ack. |
| 104 | func (cc *ClientConn) Ping(ctx context.Context) error { |
| 105 | return cc.ping(ctx) |
| 106 | } |