ducky/devices

Paddy 2015-12-19 Parent:b6494e1a499e

16:a700ede02f91 Go to Latest

ducky/devices/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go

Validate device creation. Update our uuid package to the latest, which is now based on the GitHub fork instead of the Google Code. Also, update our api package to its latest version, which now needs the pqarrays package as a dependency. We fleshed out the validateDeviceCreation. We now pass in the scopes we have (for broad access control) and the user ID (for fine-grained access control). This helper returns the first error it encounters, though it should probably return a slice so we can return multiple errors all at once. Before we even decode the request to create a Device, let's check if the user is even logged in. If we can't ascertain that or they're not, there's no point in even consuming the memory necessary to read the request, because we know we're not going to use it anyways. Finally actually validate the devices we're creating, and return an appropriate error for each error we can get. Also, the api.CheckScopes helper function now takes the scopes passed in as a string slice, and we have an api.GetScopes helper function to retrieve the scopes associated with the request. Let's not keep parsing that. We need two new scopes to control access for device creation; ScopeImport lets users import devices in and is pretty much admin access. ScopeCreateOtherUserDevices allows a user to create Devices that are owned by another user.

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1 // Copyright 2015 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 // Package ctxhttp provides helper functions for performing context-aware HTTP requests.
6 package ctxhttp
7
8 import (
9 "io"
10 "net/http"
11 "net/url"
12 "strings"
13
14 "golang.org/x/net/context"
15 )
16
17 // Do sends an HTTP request with the provided http.Client and returns an HTTP response.
18 // If the client is nil, http.DefaultClient is used.
19 // If the context is canceled or times out, ctx.Err() will be returned.
20 func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
21 if client == nil {
22 client = http.DefaultClient
23 }
24
25 // Request cancelation changed in Go 1.5, see cancelreq.go and cancelreq_go14.go.
26 cancel := canceler(client, req)
27
28 type responseAndError struct {
29 resp *http.Response
30 err error
31 }
32 result := make(chan responseAndError, 1)
33
34 go func() {
35 resp, err := client.Do(req)
36 result <- responseAndError{resp, err}
37 }()
38
39 select {
40 case <-ctx.Done():
41 cancel()
42 return nil, ctx.Err()
43 case r := <-result:
44 return r.resp, r.err
45 }
46 }
47
48 // Get issues a GET request via the Do function.
49 func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
50 req, err := http.NewRequest("GET", url, nil)
51 if err != nil {
52 return nil, err
53 }
54 return Do(ctx, client, req)
55 }
56
57 // Head issues a HEAD request via the Do function.
58 func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
59 req, err := http.NewRequest("HEAD", url, nil)
60 if err != nil {
61 return nil, err
62 }
63 return Do(ctx, client, req)
64 }
65
66 // Post issues a POST request via the Do function.
67 func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) {
68 req, err := http.NewRequest("POST", url, body)
69 if err != nil {
70 return nil, err
71 }
72 req.Header.Set("Content-Type", bodyType)
73 return Do(ctx, client, req)
74 }
75
76 // PostForm issues a POST request via the Do function.
77 func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) {
78 return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode()))
79 }