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
|
<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Superclass for plugins that do authentication and/or authorization
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Plugin
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* Superclass for plugins that do authentication
*
* @category Plugin
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
abstract class AuthenticationPlugin extends Plugin
{
//is this plugin authoritative for authentication?
public $authoritative = false;
//should accounts be automatically created after a successful login attempt?
public $autoregistration = false;
//can the user change their email address
public $password_changeable=true;
//unique name for this authentication provider
public $provider_name;
//------------Auth plugin should implement some (or all) of these methods------------\\
/**
* Check if a nickname/password combination is valid
* @param username
* @param password
* @return boolean true if the credentials are valid, false if they are invalid.
*/
function checkPassword($username, $password)
{
return false;
}
/**
* Automatically register a user when they attempt to login with valid credentials.
* User::register($data) is a very useful method for this implementation
* @param username
* @return mixed instance of User, or false (if user couldn't be created)
*/
function autoRegister($username)
{
$registration_data = array();
$registration_data['nickname'] = $username ;
return User::register($registration_data);
}
/**
* Change a user's password
* The old password has been verified to be valid by this plugin before this call is made
* @param username
* @param oldpassword
* @param newpassword
* @return boolean true if the password was changed, false if password changing failed for some reason
*/
function changePassword($username,$oldpassword,$newpassword)
{
return false;
}
//------------Below are the methods that connect StatusNet to the implementing Auth plugin------------\\
function onInitializePlugin(){
if(!isset($this->provider_name)){
throw new Exception("must specify a provider_name for this authentication provider");
}
}
function onStartCheckPassword($nickname, $password, &$authenticatedUser){
//map the nickname to a username
$user_username = new User_username();
$user_username->username=$nickname;
$user_username->provider_name=$this->provider_name;
if($user_username->find() && $user_username->fetch()){
$username = $user_username->username;
$authenticated = $this->checkPassword($username, $password);
if($authenticated){
$authenticatedUser = User::staticGet('id', $user_username->user_id);
return false;
}
}else{
$user = User::staticGet('nickname', $nickname);
if($user){
//make sure a different provider isn't handling this nickname
$user_username = new User_username();
$user_username->username=$nickname;
if(!$user_username->find()){
//no other provider claims this username, so it's safe for us to handle it
$authenticated = $this->checkPassword($nickname, $password);
if($authenticated){
$authenticatedUser = User::staticGet('nickname', $nickname);
$user_username = new User_username();
$user_username->user_id = $authenticatedUser->id;
$user_username->provider_name = $this->provider_name;
$user_username->username = $nickname;
$user_username->created = DB_DataObject_Cast::dateTime();
$user_username->insert();
return false;
}
}
}else{
if($this->autoregistration){
$authenticated = $this->checkPassword($nickname, $password);
if($authenticated){
$user = $this->autoregister($nickname);
if($user){
$authenticatedUser = $user;
$user_username = new User_username();
$user_username->user_id = $authenticatedUser->id;
$user_username->provider_name = $this->provider_name;
$user_username->username = $nickname;
$user_username->created = DB_DataObject_Cast::dateTime();
$user_username->insert();
return false;
}
}
}
}
}
if($this->authoritative){
return false;
}else{
//we're not authoritative, so let other handlers try
return;
}
}
function onStartChangePassword($user,$oldpassword,$newpassword)
{
if($this->password_changeable){
$user_username = new User_username();
$user_username->user_id=$user->id;
$user_username->provider_name=$this->provider_name;
if($user_username->find() && $user_username->fetch()){
$authenticated = $this->checkPassword($user_username->username, $oldpassword);
if($authenticated){
$result = $this->changePassword($user_username->username,$oldpassword,$newpassword);
if($result){
//stop handling of other handlers, because what was requested was done
return false;
}else{
throw new Exception(_('Password changing failed'));
}
}else{
if($this->authoritative){
//since we're authoritative, no other plugin could do this
throw new Exception(_('Password changing failed'));
}else{
//let another handler try
return null;
}
}
}
}else{
if($this->authoritative){
//since we're authoritative, no other plugin could do this
throw new Exception(_('Password changing is not allowed'));
}
}
}
function onStartAccountSettingsPasswordMenuItem($widget)
{
if($this->authoritative && !$this->password_changeable){
//since we're authoritative, no other plugin could change passwords, so do not render the menu item
return false;
}
}
function onAutoload($cls)
{
switch ($cls)
{
case 'User_username':
require_once(INSTALLDIR.'/plugins/Authentication/User_username.php');
return false;
default:
return true;
}
}
function onCheckSchema() {
$schema = Schema::get();
$schema->ensureTable('user_username',
array(new ColumnDef('provider_name', 'varchar',
'255', false, 'PRI'),
new ColumnDef('username', 'varchar',
'255', false, 'PRI'),
new ColumnDef('user_id', 'integer',
null, false),
new ColumnDef('created', 'datetime',
null, false),
new ColumnDef('modified', 'timestamp')));
return true;
}
function onUserDeleteRelated($user, &$tables)
{
$tables[] = 'User_username';
return true;
}
}
|
