auth

Paddy 2015-05-17 Parent:cf1aef6eb81f Child:b7e685839a1b

172:8ecb60d29b0d Go to Latest

auth/authcode.go

Support email verification. The bulk of this commit is auto-modifying files to export variables (mostly our request error types and our response type) so that they can be reused in a Go client for that API. We also implement the beginnings of a Go client for that API, implementing the bare minimum we need for our immediate purposes: the ability to retrieve information about a Login. This, of course, means we need an API endpoint that will return information about a Login, which in turn required us to implement a GetLogin method in our profileStore. Which got in-memory and postgres implementations. That done, we could add the Verification field and Verified field to the Login type, to keep track of whether we've verified the user's ownership of those communication methods (if the Login is, in fact, a communication method). This required us to update sql/postgres_init.sql to account for the new fields we're tracking. It also means that when creating a Login, we had to generate a UUID to use as the Verification field. To make things complete, we needed a verifyLogin method on the profileStore to mark a Login as verified. That, in turn, required an endpoint to control this through the API. While doing so, I lumped things together in an UpdateLogin handler just so we could reuse the endpoint and logic when resending a verification email that may have never reached the user, for whatever reason (the quintessential "send again" button). Finally, we implemented an email_verification listener that will pull email_verification events off NSQ, check for the requisite data integrity, and use mailgun to email out a verification/welcome email.

Download raw file
View source Diff to previous Annotate
History
1 package auth
2
3 import (
4 "encoding/json"
5 "errors"
6 "net/http"
7 "time"
8
9 "code.secondbit.org/uuid.hg"
10 )
11
12 func init() {
13 RegisterGrantType("authorization_code", GrantType{
14 Validate: authCodeGrantValidate,
15 Invalidate: authCodeGrantInvalidate,
16 IssuesRefresh: true,
17 ReturnToken: RenderJSONToken,
18 AllowsPublic: true,
19 AuditString: authCodeGrantAuditString,
20 })
21 }
22
23 var (
24 // ErrNoAuthorizationCodeStore is returned when a Context tries to act on a authorizationCodeStore without setting one first.
25 ErrNoAuthorizationCodeStore = errors.New("no authorizationCodeStore was specified for the Context")
26 // ErrAuthorizationCodeNotFound is returned when an AuthorizationCode is requested but not found in the authorizationCodeStore.
27 ErrAuthorizationCodeNotFound = errors.New("authorization code not found in authorizationCodeStore")
28 // ErrAuthorizationCodeAlreadyExists is returned when an AuthorizationCode is added to a authorizationCodeStore, but another AuthorizationCode with the
29 // same Code already exists in the authorizationCodeStore.
30 ErrAuthorizationCodeAlreadyExists = errors.New("authorization code already exists in authorizationCodeStore")
31 )
32
33 // AuthorizationCode represents an authorization grant made by a user to a Client, to
34 // access user data within a defined Scope for a limited amount of time.
35 type AuthorizationCode struct {
36 Code string
37 Created time.Time
38 ExpiresIn int32
39 ClientID uuid.ID
40 Scopes Scopes
41 RedirectURI string
42 State string
43 ProfileID uuid.ID
44 Used bool
45 }
46
47 type authorizationCodeStore interface {
48 getAuthorizationCode(code string) (AuthorizationCode, error)
49 saveAuthorizationCode(authCode AuthorizationCode) error
50 deleteAuthorizationCode(code string) error
51 deleteAuthorizationCodesByProfileID(profileID uuid.ID) error
52 deleteAuthorizationCodesByClientID(clientID uuid.ID) error
53 useAuthorizationCode(code string) error
54 }
55
56 func (m *memstore) getAuthorizationCode(code string) (AuthorizationCode, error) {
57 m.authCodeLock.RLock()
58 defer m.authCodeLock.RUnlock()
59 authCode, ok := m.authCodes[code]
60 if !ok {
61 return AuthorizationCode{}, ErrAuthorizationCodeNotFound
62 }
63 return authCode, nil
64 }
65
66 func (m *memstore) saveAuthorizationCode(authCode AuthorizationCode) error {
67 m.authCodeLock.Lock()
68 defer m.authCodeLock.Unlock()
69 _, ok := m.authCodes[authCode.Code]
70 if ok {
71 return ErrAuthorizationCodeAlreadyExists
72 }
73 m.authCodes[authCode.Code] = authCode
74 return nil
75 }
76
77 func (m *memstore) deleteAuthorizationCode(code string) error {
78 m.authCodeLock.Lock()
79 defer m.authCodeLock.Unlock()
80 _, ok := m.authCodes[code]
81 if !ok {
82 return ErrAuthorizationCodeNotFound
83 }
84 delete(m.authCodes, code)
85 return nil
86 }
87
88 func (m *memstore) deleteAuthorizationCodesByProfileID(profileID uuid.ID) error {
89 m.authCodeLock.Lock()
90 defer m.authCodeLock.Unlock()
91 var codes []string
92 for _, code := range m.authCodes {
93 if code.ProfileID.Equal(profileID) {
94 codes = append(codes, code.Code)
95 }
96 }
97 if len(codes) < 1 {
98 return ErrProfileNotFound
99 }
100 for _, code := range codes {
101 delete(m.authCodes, code)
102 }
103 return nil
104 }
105
106 func (m *memstore) deleteAuthorizationCodesByClientID(clientID uuid.ID) error {
107 m.authCodeLock.Lock()
108 defer m.authCodeLock.Unlock()
109 var codes []string
110 for _, code := range m.authCodes {
111 if code.ClientID.Equal(clientID) {
112 codes = append(codes, code.Code)
113 }
114 }
115 if len(codes) < 1 {
116 return ErrClientNotFound
117 }
118 for _, code := range codes {
119 delete(m.authCodes, code)
120 }
121 return nil
122 }
123
124 func (m *memstore) useAuthorizationCode(code string) error {
125 m.authCodeLock.Lock()
126 defer m.authCodeLock.Unlock()
127 a, ok := m.authCodes[code]
128 if !ok {
129 return ErrAuthorizationCodeNotFound
130 }
131 a.Used = true
132 m.authCodes[code] = a
133 return nil
134 }
135
136 func authCodeGrantValidate(w http.ResponseWriter, r *http.Request, context Context) (scopes Scopes, profileID uuid.ID, valid bool) {
137 enc := json.NewEncoder(w)
138 code := r.PostFormValue("code")
139 if code == "" {
140 w.WriteHeader(http.StatusBadRequest)
141 renderJSONError(enc, "invalid_request")
142 return
143 }
144 clientID, _, ok := getClientAuth(w, r, true)
145 if !ok {
146 return
147 }
148 authCode, err := context.GetAuthorizationCode(code)
149 if err != nil {
150 if err == ErrAuthorizationCodeNotFound {
151 w.WriteHeader(http.StatusBadRequest)
152 renderJSONError(enc, "invalid_grant")
153 return
154 }
155 w.WriteHeader(http.StatusInternalServerError)
156 renderJSONError(enc, "server_error")
157 return
158 }
159 redirectURI := r.PostFormValue("redirect_uri")
160 if authCode.RedirectURI != redirectURI {
161 w.WriteHeader(http.StatusBadRequest)
162 renderJSONError(enc, "invalid_grant")
163 return
164 }
165 if !authCode.ClientID.Equal(clientID) {
166 w.WriteHeader(http.StatusBadRequest)
167 renderJSONError(enc, "invalid_grant")
168 return
169 }
170 return authCode.Scopes, authCode.ProfileID, true
171 }
172
173 func authCodeGrantInvalidate(r *http.Request, context Context) error {
174 code := r.PostFormValue("code")
175 if code == "" {
176 return ErrAuthorizationCodeNotFound
177 }
178 return context.UseAuthorizationCode(code)
179 }
180
181 func authCodeGrantAuditString(r *http.Request) string {
182 return "authcode:" + r.PostFormValue("code")
183 }