summaryrefslogtreecommitdiff
path: root/includes/AuthPlugin.php
blob: 87ac8adb7506844f28955ae7db89fcd2008a0cea (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
<?php
/**
 */
# Copyright (C) 2004 Brion Vibber <brion@pobox.com>
# http://www.mediawiki.org/
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# http://www.gnu.org/copyleft/gpl.html

/**
 * Authentication plugin interface. Instantiate a subclass of AuthPlugin
 * and set $wgAuth to it to authenticate against some external tool.
 *
 * The default behavior is not to do anything, and use the local user
 * database for all authentication. A subclass can require that all
 * accounts authenticate externally, or use it only as a fallback; also
 * you can transparently create internal wiki accounts the first time
 * someone logs in who can be authenticated externally.
 */
class AuthPlugin {
	/**
	 * Check whether there exists a user account with the given name.
	 * The name will be normalized to MediaWiki's requirements, so
	 * you might need to munge it (for instance, for lowercase initial
	 * letters).
	 *
	 * @param $username String: username.
	 * @return bool
	 */
	public function userExists( $username ) {
		# Override this!
		return false;
	}

	/**
	 * Check if a username+password pair is a valid login.
	 * The name will be normalized to MediaWiki's requirements, so
	 * you might need to munge it (for instance, for lowercase initial
	 * letters).
	 *
	 * @param $username String: username.
	 * @param $password String: user password.
	 * @return bool
	 */
	public function authenticate( $username, $password ) {
		# Override this!
		return false;
	}

	/**
	 * Modify options in the login template.
	 *
	 * @param $template UserLoginTemplate object.
	 * @param $type String 'signup' or 'login'.
	 */
	public function modifyUITemplate( &$template, &$type ) {
		# Override this!
		$template->set( 'usedomain', false );
	}

	/**
	 * Set the domain this plugin is supposed to use when authenticating.
	 *
	 * @param $domain String: authentication domain.
	 */
	public function setDomain( $domain ) {
		$this->domain = $domain;
	}

	/**
	 * Check to see if the specific domain is a valid domain.
	 *
	 * @param $domain String: authentication domain.
	 * @return bool
	 */
	public function validDomain( $domain ) {
		# Override this!
		return true;
	}

	/**
	 * When a user logs in, optionally fill in preferences and such.
	 * For instance, you might pull the email address or real name from the
	 * external user database.
	 *
	 * The User object is passed by reference so it can be modified; don't
	 * forget the & on your function declaration.
	 *
	 * @param $user User object
	 */
	public function updateUser( &$user ) {
		# Override this and do something
		return true;
	}


	/**
	 * Return true if the wiki should create a new local account automatically
	 * when asked to login a user who doesn't exist locally but does in the
	 * external auth database.
	 *
	 * If you don't automatically create accounts, you must still create
	 * accounts in some way. It's not possible to authenticate without
	 * a local account.
	 *
	 * This is just a question, and shouldn't perform any actions.
	 *
	 * @return Boolean
	 */
	public function autoCreate() {
		return false;
	}

	/**
	 * Allow a property change? Properties are the same as preferences
	 * and use the same keys. 'Realname' 'Emailaddress' and 'Nickname'
	 * all reference this.
	 *
	 * @return Boolean
	 */
	public function allowPropChange( $prop = '' ) {
		if( $prop == 'realname' && is_callable( array( $this, 'allowRealNameChange' ) ) ) {
			return $this->allowRealNameChange();
		} elseif( $prop == 'emailaddress' && is_callable( array( $this, 'allowEmailChange' ) ) ) {
			return $this->allowEmailChange();
		} elseif( $prop == 'nickname' && is_callable( array( $this, 'allowNickChange' ) ) ) {
			return $this->allowNickChange();
		} else {
			return true;
		}
	}

	/**
	 * Can users change their passwords?
	 *
	 * @return bool
	 */
	public function allowPasswordChange() {
		return true;
	}

	/**
	 * Set the given password in the authentication database.
	 * As a special case, the password may be set to null to request
	 * locking the password to an unusable value, with the expectation
	 * that it will be set later through a mail reset or other method.
	 *
	 * Return true if successful.
	 *
	 * @param $user User object.
	 * @param $password String: password.
	 * @return bool
	 */
	public function setPassword( $user, $password ) {
		return true;
	}

	/**
	 * Update user information in the external authentication database.
	 * Return true if successful.
	 *
	 * @param $user User object.
	 * @return Boolean
	 */
	public function updateExternalDB( $user ) {
		return true;
	}

	/**
	 * Check to see if external accounts can be created.
	 * Return true if external accounts can be created.
	 * @return Boolean
	 */
	public function canCreateAccounts() {
		return false;
	}

	/**
	 * Add a user to the external authentication database.
	 * Return true if successful.
	 *
	 * @param $user User: only the name should be assumed valid at this point
	 * @param $password String
	 * @param $email String
	 * @param $realname String
	 * @return Boolean
	 */
	public function addUser( $user, $password, $email='', $realname='' ) {
		return true;
	}


	/**
	 * Return true to prevent logins that don't authenticate here from being
	 * checked against the local database's password fields.
	 *
	 * This is just a question, and shouldn't perform any actions.
	 *
	 * @return Boolean
	 */
	public function strict() {
		return false;
	}

	/**
	 * Check if a user should authenticate locally if the global authentication fails.
	 * If either this or strict() returns true, local authentication is not used.
	 *
	 * @param $username String: username.
	 * @return Boolean
	 */
	public function strictUserAuth( $username ) {
		return false;
	}

	/**
	 * When creating a user account, optionally fill in preferences and such.
	 * For instance, you might pull the email address or real name from the
	 * external user database.
	 *
	 * The User object is passed by reference so it can be modified; don't
	 * forget the & on your function declaration.
	 *
	 * @param $user User object.
	 * @param $autocreate Boolean: True if user is being autocreated on login
	 */
	public function initUser( &$user, $autocreate=false ) {
		# Override this to do something.
	}

	/**
	 * If you want to munge the case of an account name before the final
	 * check, now is your chance.
	 */
	public function getCanonicalName( $username ) {
		return $username;
	}
	
	/**
	 * Get an instance of a User object
	 *
	 * @param $user User
	 */
	public function getUserInstance( User &$user ) {
		return new AuthPluginUser( $user );
	}
}

class AuthPluginUser {
	function __construct( $user ) {
		# Override this!
	}
	
	public function getId() {
		# Override this!
		return -1;
	}
	
	public function isLocked() {
		# Override this!
		return false;
	}
	
	public function isHidden() {
		# Override this!
		return false;
	}
	
	public function resetAuthToken() {
		# Override this!
		return true;
	}
}