6e644f77a4
We were bumping into limits on the config format in the Blacklist plugin. So, added new tables for nickname and homepage blacklists, and changed the plugin to use those instead of config file (actually, still uses config file in addition, for compatibility).
486 lines
14 KiB
PHP
486 lines
14 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Plugin to prevent use of nicknames or URLs on a blacklist
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Action
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2010 StatusNet Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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/**
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* Plugin to prevent use of nicknames or URLs on a blacklist
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*
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* @category Plugin
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class BlacklistPlugin extends Plugin
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{
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const VERSION = STATUSNET_VERSION;
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public $nicknames = array();
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public $urls = array();
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public $canAdmin = true;
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private $_nicknamePatterns = array();
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private $_urlPatterns = array();
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/**
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* Initialize the plugin
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*
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* @return void
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*/
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function initialize()
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{
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$confNicknames = $this->_configArray('blacklist', 'nicknames');
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$dbNicknames = Nickname_blacklist::getPatterns();
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$this->_nicknamePatterns = array_merge($this->nicknames,
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$confNicknames,
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$dbNicknames);
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$confURLs = $this->_configArray('blacklist', 'urls');
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$dbURLs = Homepage_blacklist::getPatterns();
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$this->_urlPatterns = array_merge($this->urls,
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$confURLs,
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$dbURLs);
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}
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/**
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* Database schema setup
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*
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* @return boolean hook value
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*/
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function onCheckSchema()
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{
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$schema = Schema::get();
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// For storing blacklist patterns for nicknames
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$schema->ensureTable('nickname_blacklist',
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array(new ColumnDef('pattern',
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'varchar',
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255,
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false,
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'PRI'),
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new ColumnDef('created',
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'datetime',
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null,
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false)));
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$schema->ensureTable('homepage_blacklist',
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array(new ColumnDef('pattern',
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'varchar',
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255,
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false,
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'PRI'),
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new ColumnDef('created',
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'datetime',
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null,
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false)));
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return true;
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}
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/**
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* Retrieve an array from configuration
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*
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* Carefully checks a section.
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*
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* @param string $section Configuration section
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* @param string $setting Configuration setting
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*
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* @return array configuration values
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*/
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function _configArray($section, $setting)
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{
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$config = common_config($section, $setting);
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if (empty($config)) {
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return array();
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} else if (is_array($config)) {
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return $config;
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} else if (is_string($config)) {
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return explode("\r\n", $config);
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} else {
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throw new Exception("Unknown data type for config $section + $setting");
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}
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}
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/**
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* Hook registration to prevent blacklisted homepages or nicknames
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*
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* Throws an exception if there's a blacklisted homepage or nickname.
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*
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* @param Action $action Action being called (usually register)
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*
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* @return boolean hook value
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*/
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function onStartRegistrationTry($action)
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{
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$homepage = strtolower($action->trimmed('homepage'));
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if (!empty($homepage)) {
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if (!$this->_checkUrl($homepage)) {
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$msg = sprintf(_m("You may not register with homepage '%s'"),
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$homepage);
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throw new ClientException($msg);
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}
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}
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$nickname = strtolower($action->trimmed('nickname'));
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if (!empty($nickname)) {
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if (!$this->_checkNickname($nickname)) {
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$msg = sprintf(_m("You may not register with nickname '%s'"),
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$nickname);
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throw new ClientException($msg);
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}
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}
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return true;
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}
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/**
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* Hook profile update to prevent blacklisted homepages or nicknames
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*
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* Throws an exception if there's a blacklisted homepage or nickname.
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*
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* @param Action $action Action being called (usually register)
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*
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* @return boolean hook value
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*/
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function onStartProfileSaveForm($action)
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{
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$homepage = strtolower($action->trimmed('homepage'));
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if (!empty($homepage)) {
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if (!$this->_checkUrl($homepage)) {
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$msg = sprintf(_m("You may not use homepage '%s'"),
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$homepage);
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throw new ClientException($msg);
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}
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}
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$nickname = strtolower($action->trimmed('nickname'));
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if (!empty($nickname)) {
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if (!$this->_checkNickname($nickname)) {
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$msg = sprintf(_m("You may not use nickname '%s'"),
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$nickname);
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throw new ClientException($msg);
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}
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}
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return true;
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}
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/**
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* Hook notice save to prevent blacklisted urls
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*
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* Throws an exception if there's a blacklisted url in the content.
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*
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* @param Notice &$notice Notice being saved
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*
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* @return boolean hook value
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*/
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function onStartNoticeSave(&$notice)
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{
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common_replace_urls_callback($notice->content,
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array($this, 'checkNoticeUrl'));
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return true;
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}
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/**
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* Helper callback for notice save
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*
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* Throws an exception if there's a blacklisted url in the content.
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*
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* @param string $url URL in the notice content
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*
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* @return boolean hook value
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*/
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function checkNoticeUrl($url)
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{
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// It comes in special'd, so we unspecial it
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// before comparing against patterns
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$url = htmlspecialchars_decode($url);
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if (!$this->_checkUrl($url)) {
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$msg = sprintf(_m("You may not use url '%s' in notices"),
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$url);
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throw new ClientException($msg);
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}
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return $url;
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}
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/**
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* Helper for checking URLs
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*
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* Checks an URL against our patterns for a match.
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*
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* @param string $url URL to check
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*
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* @return boolean true means it's OK, false means it's bad
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*/
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private function _checkUrl($url)
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{
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foreach ($this->_urlPatterns as $pattern) {
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common_debug("Checking $url against $pattern");
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if (preg_match("/$pattern/", $url)) {
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return false;
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}
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}
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return true;
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}
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/**
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* Helper for checking nicknames
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*
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* Checks a nickname against our patterns for a match.
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*
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* @param string $nickname nickname to check
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*
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* @return boolean true means it's OK, false means it's bad
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*/
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private function _checkNickname($nickname)
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{
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foreach ($this->_nicknamePatterns as $pattern) {
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common_debug("Checking $nickname against $pattern");
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if (preg_match("/$pattern/", $nickname)) {
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return false;
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}
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}
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return true;
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}
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/**
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* Add our actions to the URL router
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*
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* @param Net_URL_Mapper $m URL mapper for this hit
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*
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* @return boolean hook return
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*/
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function onRouterInitialized($m)
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{
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$m->connect('admin/blacklist', array('action' => 'blacklistadminpanel'));
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return true;
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}
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/**
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* Auto-load our classes if called
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*
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* @param string $cls Class to load
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*
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* @return boolean hook return
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*/
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function onAutoload($cls)
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{
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switch (strtolower($cls))
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{
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case 'nickname_blacklist':
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case 'homepage_blacklist':
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include_once INSTALLDIR.'/plugins/Blacklist/'.ucfirst($cls).'.php';
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return false;
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case 'blacklistadminpanelaction':
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$base = strtolower(mb_substr($cls, 0, -6));
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include_once INSTALLDIR.'/plugins/Blacklist/'.$base.'.php';
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return false;
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default:
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return true;
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}
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}
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/**
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* Plugin version data
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*
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* @param array &$versions array of version blocks
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*
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* @return boolean hook value
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*/
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function onPluginVersion(&$versions)
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{
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$versions[] = array('name' => 'Blacklist',
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'version' => self::VERSION,
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'author' => 'Evan Prodromou',
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'homepage' =>
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'http://status.net/wiki/Plugin:Blacklist',
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'description' =>
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_m('Keep a blacklist of forbidden nickname '.
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'and URL patterns.'));
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return true;
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}
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/**
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* Determines if our admin panel can be shown
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*
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* @param string $name name of the admin panel
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* @param boolean &$isOK result
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*
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* @return boolean hook value
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*/
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function onAdminPanelCheck($name, &$isOK)
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{
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if ($name == 'blacklist') {
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$isOK = $this->canAdmin;
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return false;
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}
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return true;
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}
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/**
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* Add our tab to the admin panel
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*
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* @param Widget $nav Admin panel nav
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*
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* @return boolean hook value
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*/
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function onEndAdminPanelNav($nav)
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{
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if (AdminPanelAction::canAdmin('blacklist')) {
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$action_name = $nav->action->trimmed('action');
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$nav->out->menuItem(common_local_url('blacklistadminpanel'),
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_('Blacklist'),
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_('Blacklist configuration'),
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$action_name == 'blacklistadminpanel',
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'nav_blacklist_admin_panel');
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}
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return true;
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}
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function onEndDeleteUserForm($action, $user)
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{
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$cur = common_current_user();
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if (empty($cur) || !$cur->hasRight(Right::CONFIGURESITE)) {
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return;
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}
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$profile = $user->getProfile();
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if (empty($profile)) {
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return;
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}
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$action->elementStart('ul', 'form_data');
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$action->elementStart('li');
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$this->checkboxAndText($action,
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'blacklistnickname',
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_('Add this nickname pattern to blacklist'),
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'blacklistnicknamepattern',
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$this->patternizeNickname($user->nickname));
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$action->elementEnd('li');
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if (!empty($profile->homepage)) {
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$action->elementStart('li');
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$this->checkboxAndText($action,
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'blacklisthomepage',
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_('Add this homepage pattern to blacklist'),
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'blacklisthomepagepattern',
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$this->patternizeHomepage($profile->homepage));
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$action->elementEnd('li');
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}
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$action->elementEnd('ul');
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}
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function onEndDeleteUser($action, $user)
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{
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if ($action->boolean('blacklisthomepage')) {
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$pattern = $action->trimmed('blacklisthomepagepattern');
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Homepage_blacklist::ensurePattern($pattern);
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}
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if ($action->boolean('blacklistnickname')) {
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$pattern = $action->trimmed('blacklistnicknamepattern');
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Nickname_blacklist::ensurePattern($pattern);
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}
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return true;
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}
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function checkboxAndText($action, $checkID, $label, $textID, $value)
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{
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$action->element('input', array('name' => $checkID,
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'type' => 'checkbox',
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'class' => 'checkbox',
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'id' => $checkID));
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$action->text(' ');
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$action->element('label', array('class' => 'checkbox',
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'for' => $checkID),
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$label);
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$action->text(' ');
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$action->element('input', array('name' => $textID,
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'type' => 'text',
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'id' => $textID,
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'value' => $value));
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}
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function patternizeNickname($nickname)
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{
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return $nickname;
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}
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function patternizeHomepage($homepage)
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{
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$hostname = parse_url($homepage, PHP_URL_HOST);
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return $hostname;
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}
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}
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