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-rw-r--r--plugins/Authentication/AuthenticationPlugin.php243
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diff --git a/plugins/Authentication/AuthenticationPlugin.php b/plugins/Authentication/AuthenticationPlugin.php
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--- a/plugins/Authentication/AuthenticationPlugin.php
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-<?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");
- }
- }
-
- /**
- * Internal AutoRegister event handler
- * @param nickname
- * @param provider_name
- * @param user - the newly registered user
- */
- function onAutoRegister($nickname, $provider_name, &$user)
- {
- if($provider_name == $this->provider_name && $this->autoregistration){
- $user = $this->autoregister($nickname);
- if($user){
- User_username::register($user,$nickname,$this->provider_name);
- return false;
- }
- }
- }
-
- 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', $nickname);
- User_username::register($authenticatedUser,$nickname,$this->provider_name);
- return false;
- }
- }
- }else{
- $authenticated = $this->checkPassword($nickname, $password);
- if($authenticated){
- if(! Event::handle('AutoRegister', array($nickname, $this->provider_name, &$authenticatedUser))){
- //unlike most Event::handle lines of code, this one has a ! (not)
- //we want to do this if the event *was* handled - this isn't a "default" implementation
- //like most code of this form.
- if($authenticatedUser){
- return false;
- }
- }
- }
- }
- }
- if($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;
- }
-}
-
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