summaryrefslogtreecommitdiffstats
path: root/vendor/golang.org/x/oauth2/internal/transport.go
blob: 572074a637dd6fbf13571900bac00289871d9dcc (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package internal

import (
	"context"
	"net/http"
)

// HTTPClient is the context key to use with golang.org/x/net/context's
// WithValue function to associate an *http.Client value with a context.
var HTTPClient ContextKey

// ContextKey is just an empty struct. It exists so HTTPClient can be
// an immutable public variable with a unique type. It's immutable
// because nobody else can create a ContextKey, being unexported.
type ContextKey struct{}

var appengineClientHook func(context.Context) *http.Client

func ContextClient(ctx context.Context) *http.Client {
	if ctx != nil {
		if hc, ok := ctx.Value(HTTPClient).(*http.Client); ok {
			return hc
		}
	}
	if appengineClientHook != nil {
		return appengineClientHook(ctx)
	}
	return http.DefaultClient
}