ducky/devices

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go	Thu Nov 12 20:33:26 2015 -0800
     1.3 @@ -0,0 +1,79 @@
     1.4 +// Copyright 2015 The Go Authors. All rights reserved.
     1.5 +// Use of this source code is governed by a BSD-style
     1.6 +// license that can be found in the LICENSE file.
     1.7 +
     1.8 +// Package ctxhttp provides helper functions for performing context-aware HTTP requests.
     1.9 +package ctxhttp
    1.10 +
    1.11 +import (
    1.12 +	"io"
    1.13 +	"net/http"
    1.14 +	"net/url"
    1.15 +	"strings"
    1.16 +
    1.17 +	"golang.org/x/net/context"
    1.18 +)
    1.19 +
    1.20 +// Do sends an HTTP request with the provided http.Client and returns an HTTP response.
    1.21 +// If the client is nil, http.DefaultClient is used.
    1.22 +// If the context is canceled or times out, ctx.Err() will be returned.
    1.23 +func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
    1.24 +	if client == nil {
    1.25 +		client = http.DefaultClient
    1.26 +	}
    1.27 +
    1.28 +	// Request cancelation changed in Go 1.5, see cancelreq.go and cancelreq_go14.go.
    1.29 +	cancel := canceler(client, req)
    1.30 +
    1.31 +	type responseAndError struct {
    1.32 +		resp *http.Response
    1.33 +		err  error
    1.34 +	}
    1.35 +	result := make(chan responseAndError, 1)
    1.36 +
    1.37 +	go func() {
    1.38 +		resp, err := client.Do(req)
    1.39 +		result <- responseAndError{resp, err}
    1.40 +	}()
    1.41 +
    1.42 +	select {
    1.43 +	case <-ctx.Done():
    1.44 +		cancel()
    1.45 +		return nil, ctx.Err()
    1.46 +	case r := <-result:
    1.47 +		return r.resp, r.err
    1.48 +	}
    1.49 +}
    1.50 +
    1.51 +// Get issues a GET request via the Do function.
    1.52 +func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
    1.53 +	req, err := http.NewRequest("GET", url, nil)
    1.54 +	if err != nil {
    1.55 +		return nil, err
    1.56 +	}
    1.57 +	return Do(ctx, client, req)
    1.58 +}
    1.59 +
    1.60 +// Head issues a HEAD request via the Do function.
    1.61 +func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
    1.62 +	req, err := http.NewRequest("HEAD", url, nil)
    1.63 +	if err != nil {
    1.64 +		return nil, err
    1.65 +	}
    1.66 +	return Do(ctx, client, req)
    1.67 +}
    1.68 +
    1.69 +// Post issues a POST request via the Do function.
    1.70 +func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) {
    1.71 +	req, err := http.NewRequest("POST", url, body)
    1.72 +	if err != nil {
    1.73 +		return nil, err
    1.74 +	}
    1.75 +	req.Header.Set("Content-Type", bodyType)
    1.76 +	return Do(ctx, client, req)
    1.77 +}
    1.78 +
    1.79 +// PostForm issues a POST request via the Do function.
    1.80 +func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) {
    1.81 +	return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode()))
    1.82 +}