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230809ef | 1 | import { Injectable } from '@angular/core'; |
0f3a78e7 | 2 | import { Headers, Http, Response, URLSearchParams } from '@angular/http'; |
5555f886 C |
3 | import { Observable } from 'rxjs/Observable'; |
4 | import { Subject } from 'rxjs/Subject'; | |
b1794c53 | 5 | |
41a2aee3 C |
6 | import { AuthStatus } from './auth-status.model'; |
7 | import { User } from './user.model'; | |
b1794c53 C |
8 | |
9 | @Injectable() | |
10 | export class AuthService { | |
6606150c | 11 | private static BASE_CLIENT_URL = '/api/v1/clients/local'; |
bd5c83a8 | 12 | private static BASE_TOKEN_URL = '/api/v1/users/token'; |
629d8d6f | 13 | private static BASE_USER_INFORMATIONS_URL = '/api/v1/users/me'; |
b1794c53 | 14 | |
ccf6ed16 | 15 | loginChangedSource: Observable<AuthStatus>; |
b1794c53 | 16 | |
ccf6ed16 C |
17 | private clientId: string; |
18 | private clientSecret: string; | |
4fd8aa32 | 19 | private loginChanged: Subject<AuthStatus>; |
bd5c83a8 | 20 | private user: User = null; |
ccf6ed16 C |
21 | |
22 | constructor(private http: Http) { | |
23 | this.loginChanged = new Subject<AuthStatus>(); | |
24 | this.loginChangedSource = this.loginChanged.asObservable(); | |
23a5a916 C |
25 | |
26 | // Fetch the client_id/client_secret | |
27 | // FIXME: save in local storage? | |
ccf6ed16 | 28 | this.http.get(AuthService.BASE_CLIENT_URL) |
23a5a916 C |
29 | .map(res => res.json()) |
30 | .catch(this.handleError) | |
31 | .subscribe( | |
32 | result => { | |
ccf6ed16 C |
33 | this.clientId = result.client_id; |
34 | this.clientSecret = result.client_secret; | |
23a5a916 C |
35 | console.log('Client credentials loaded.'); |
36 | }, | |
37 | error => { | |
38 | alert(error); | |
39 | } | |
ad10a70b | 40 | ); |
bd5c83a8 C |
41 | |
42 | // Return null if there is nothing to load | |
43 | this.user = User.load(); | |
1553e15d | 44 | } |
b1794c53 | 45 | |
bd5c83a8 C |
46 | getRefreshToken() { |
47 | if (this.user === null) return null; | |
48 | ||
49 | return this.user.getRefreshToken(); | |
50 | } | |
51 | ||
e822fdae | 52 | getRequestHeaderValue() { |
0f3a78e7 | 53 | return `${this.getTokenType()} ${this.getAccessToken()}`; |
1553e15d C |
54 | } |
55 | ||
0f3a78e7 | 56 | getAccessToken() { |
bd5c83a8 C |
57 | if (this.user === null) return null; |
58 | ||
59 | return this.user.getAccessToken(); | |
1553e15d C |
60 | } |
61 | ||
ccf6ed16 | 62 | getTokenType() { |
bd5c83a8 C |
63 | if (this.user === null) return null; |
64 | ||
65 | return this.user.getTokenType(); | |
1553e15d C |
66 | } |
67 | ||
68 | getUser(): User { | |
bd5c83a8 | 69 | return this.user; |
1553e15d C |
70 | } |
71 | ||
ccf6ed16 | 72 | isLoggedIn() { |
0f3a78e7 | 73 | if (this.getAccessToken()) { |
1553e15d C |
74 | return true; |
75 | } else { | |
76 | return false; | |
77 | } | |
78 | } | |
79 | ||
4fd8aa32 C |
80 | login(username: string, password: string) { |
81 | let body = new URLSearchParams(); | |
82 | body.set('client_id', this.clientId); | |
83 | body.set('client_secret', this.clientSecret); | |
84 | body.set('response_type', 'code'); | |
85 | body.set('grant_type', 'password'); | |
86 | body.set('scope', 'upload'); | |
87 | body.set('username', username); | |
88 | body.set('password', password); | |
89 | ||
90 | let headers = new Headers(); | |
91 | headers.append('Content-Type', 'application/x-www-form-urlencoded'); | |
92 | ||
93 | let options = { | |
94 | headers: headers | |
95 | }; | |
96 | ||
bd5c83a8 | 97 | return this.http.post(AuthService.BASE_TOKEN_URL, body.toString(), options) |
4fd8aa32 | 98 | .map(res => res.json()) |
bd5c83a8 C |
99 | .map(res => { |
100 | res.username = username; | |
101 | return res; | |
102 | }) | |
629d8d6f | 103 | .flatMap(res => this.fetchUserInformations(res)) |
bd5c83a8 | 104 | .map(res => this.handleLogin(res)) |
4fd8aa32 C |
105 | .catch(this.handleError); |
106 | } | |
107 | ||
108 | logout() { | |
bd5c83a8 C |
109 | // TODO: make an HTTP request to revoke the tokens |
110 | this.user = null; | |
111 | User.flush(); | |
e62f6ef7 C |
112 | |
113 | this.setStatus(AuthStatus.LoggedOut); | |
bd5c83a8 C |
114 | } |
115 | ||
116 | refreshAccessToken() { | |
117 | console.log('Refreshing token...'); | |
118 | ||
119 | const refreshToken = this.getRefreshToken(); | |
120 | ||
121 | let body = new URLSearchParams(); | |
122 | body.set('refresh_token', refreshToken); | |
123 | body.set('client_id', this.clientId); | |
124 | body.set('client_secret', this.clientSecret); | |
125 | body.set('response_type', 'code'); | |
126 | body.set('grant_type', 'refresh_token'); | |
127 | ||
128 | let headers = new Headers(); | |
129 | headers.append('Content-Type', 'application/x-www-form-urlencoded'); | |
130 | ||
131 | let options = { | |
132 | headers: headers | |
133 | }; | |
134 | ||
135 | return this.http.post(AuthService.BASE_TOKEN_URL, body.toString(), options) | |
136 | .map(res => res.json()) | |
137 | .map(res => this.handleRefreshToken(res)) | |
138 | .catch(this.handleError); | |
4fd8aa32 C |
139 | } |
140 | ||
629d8d6f C |
141 | private fetchUserInformations (obj: any) { |
142 | // Do not call authHttp here to avoid circular dependencies headaches | |
143 | ||
144 | const headers = new Headers(); | |
145 | headers.set('Authorization', `Bearer ${obj.access_token}`); | |
146 | ||
147 | return this.http.get(AuthService.BASE_USER_INFORMATIONS_URL, { headers }) | |
148 | .map(res => res.json()) | |
149 | .map(res => { | |
150 | obj.id = res.id; | |
151 | obj.role = res.role; | |
152 | return obj; | |
153 | } | |
154 | ); | |
155 | } | |
156 | ||
157 | private handleError (error: Response) { | |
158 | console.error(error); | |
159 | return Observable.throw(error.json() || { error: 'Server error' }); | |
b1794c53 C |
160 | } |
161 | ||
bd5c83a8 | 162 | private handleLogin (obj: any) { |
629d8d6f | 163 | const id = obj.id; |
bd5c83a8 | 164 | const username = obj.username; |
629d8d6f | 165 | const role = obj.role; |
bd5c83a8 C |
166 | const hash_tokens = { |
167 | access_token: obj.access_token, | |
168 | token_type: obj.token_type, | |
169 | refresh_token: obj.refresh_token | |
170 | }; | |
171 | ||
629d8d6f | 172 | this.user = new User(id, username, role, hash_tokens); |
bd5c83a8 C |
173 | this.user.save(); |
174 | ||
175 | this.setStatus(AuthStatus.LoggedIn); | |
176 | } | |
177 | ||
bd5c83a8 C |
178 | private handleRefreshToken (obj: any) { |
179 | this.user.refreshTokens(obj.access_token, obj.refresh_token); | |
180 | this.user.save(); | |
181 | } | |
629d8d6f C |
182 | |
183 | private setStatus(status: AuthStatus) { | |
184 | this.loginChanged.next(status); | |
185 | } | |
186 | ||
b1794c53 | 187 | } |