auth
auth/request.go
Add Client updating from the API. Add a handler to update Clients using the API. Add a helper that will decode a request for us based on its Content-Type header. Change the ClientChange.Validate function to return as many errors as possible, as opposed to just the first error it encounters. Update the ClientChange.Validate tests to take advantage of the new signature.
1 package auth
3 import (
4 "encoding/json"
5 "log"
6 "net/http"
8 "bitbucket.org/ww/goautoneg"
9 )
11 const (
12 requestErrAccessDenied = "access_denied"
13 requestErrInsufficient = "insufficient"
14 requestErrOverflow = "overflow"
15 requestErrInvalidValue = "invalid_value"
16 requestErrInvalidFormat = "invalid_format"
17 requestErrMissing = "missing"
18 requestErrNotFound = "not_found"
19 requestErrConflict = "conflict"
20 requestErrActOfGod = "act_of_god"
21 )
23 var (
24 actOfGodResponse = response{Errors: []requestError{requestError{Slug: requestErrActOfGod}}}
25 invalidFormatResponse = response{Errors: []requestError{requestError{Slug: requestErrInvalidFormat, Field: "/"}}}
27 encoders = []string{"application/json"}
28 )
30 type response struct {
31 Errors []requestError `json:"errors,omitempty"`
32 Logins []Login `json:"logins,omitempty"`
33 Profiles []Profile `json:"profiles,omitempty"`
34 Clients []Client `json:"clients,omitempty"`
35 Endpoints []Endpoint `json:"endpoints,omitempty"`
36 }
38 type requestError struct {
39 Slug string `json:"error,omitempty"`
40 Field string `json:"field,omitempty"`
41 Param string `json:"param,omitempty"`
42 Header string `json:"header,omitempty"`
43 }
45 func negotiate(h http.Handler) http.Handler {
46 return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
47 if r.Header.Get("Accept") != "" {
48 contentType := goautoneg.Negotiate(r.Header.Get("Accept"), encoders)
49 if contentType == "" {
50 w.WriteHeader(http.StatusNotAcceptable)
51 w.Write([]byte("Unsupported content type requested: " + r.Header.Get("Accept")))
52 return
53 }
54 }
55 h.ServeHTTP(w, r)
56 })
57 }
59 func encode(w http.ResponseWriter, r *http.Request, status int, resp response) {
60 contentType := goautoneg.Negotiate(r.Header.Get("Accept"), encoders)
61 w.Header().Set("content-type", contentType)
62 w.WriteHeader(status)
63 var err error
64 switch contentType {
65 case "application/json":
66 enc := json.NewEncoder(w)
67 err = enc.Encode(resp)
68 default:
69 enc := json.NewEncoder(w)
70 err = enc.Encode(resp)
71 }
72 if err != nil {
73 log.Println(err)
74 }
75 }
77 func decode(r *http.Request, target interface{}) error {
78 defer r.Body.Close()
79 switch r.Header.Get("Content-Type") {
80 case "application/json":
81 dec := json.NewDecoder(r.Body)
82 return dec.Decode(target)
83 default:
84 dec := json.NewDecoder(r.Body)
85 return dec.Decode(target)
86 }
87 }
89 func wrap(context Context, f func(w http.ResponseWriter, r *http.Request, context Context)) http.Handler {
90 return negotiate(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
91 f(w, r, context)
92 }))
93 }