gnu-social/plugins/SearchSub/SearchSubPlugin.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* A plugin to enable local tab subscription
*
* PHP version 5
*
* 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 SearchSubPlugin
* @package StatusNet
* @author Brion Vibber <brion@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
/**
* SearchSub plugin main class
*
* @category SearchSubPlugin
* @package StatusNet
* @author Brion Vibber <brionv@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class SearchSubPlugin extends Plugin
{
const VERSION = '0.1';
/**
* Database schema setup
*
* @see Schema
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onCheckSchema()
{
$schema = Schema::get();
$schema->ensureTable('searchsub', SearchSub::schemaDef());
return true;
}
/**
* Load related modules when needed
*
* @param string $cls Name of the class to be loaded
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onAutoload($cls)
{
$dir = dirname(__FILE__);
switch ($cls)
{
case 'SearchSub':
include_once $dir.'/'.$cls.'.php';
return false;
case 'SearchsubAction':
case 'SearchunsubAction':
case 'SearchSubForm':
case 'SearchUnsubForm':
include_once $dir.'/'.strtolower($cls).'.php';
return false;
default:
return true;
}
}
/**
* Map URLs to actions
*
* @param Net_URL_Mapper $m path-to-action mapper
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onRouterInitialized($m)
{
$m->connect('search/:search/subscribe',
array('action' => 'searchsub'),
array('search' => Router::REGEX_TAG));
$m->connect('search/:search/unsubscribe',
array('action' => 'searchunsub'),
array('search' => Router::REGEX_TAG));
return true;
}
/**
* Plugin version data
*
* @param array &$versions array of version data
*
* @return value
*/
function onPluginVersion(&$versions)
{
$versions[] = array('name' => 'SearchSub',
'version' => self::VERSION,
'author' => 'Brion Vibber',
'homepage' => 'http://status.net/wiki/Plugin:SearchSub',
'rawdescription' =>
// TRANS: Plugin description.
_m('Plugin to allow following all messages with a given search.'));
return true;
}
/**
* Hook inbox delivery setup so search subscribers receive all
* notices with that search in their inbox.
*
* Currently makes no distinction between local messages and
* remote ones which happen to come in to the system. Remote
* notices that don't come in at all won't ever reach this.
*
* @param Notice $notice
* @param array $ni in/out map of profile IDs to inbox constants
* @return boolean hook result
*/
function onStartNoticeWhoGets(Notice $notice, array &$ni)
{
// Warning: this is potentially very slow
// with a lot of searches!
$sub = new SearchSub();
$sub->groupBy('search');
$sub->find();
while ($sub->fetch()) {
$search = $sub->search;
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if ($this->matchSearch($notice, $search)) {
// Match? Find all those who subscribed to this
// search term and get our delivery on...
$searchsub = new SearchSub();
$searchsub->search = $search;
$searchsub->find();
while ($searchsub->fetch()) {
// These constants are currently not actually used, iirc
$ni[$searchsub->profile_id] = NOTICE_INBOX_SOURCE_SUB;
}
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}
}
return true;
}
/**
* Does the given notice match the given fulltext search query?
*
* Warning: not guaranteed to match other search engine behavior, etc.
* Currently using a basic case-insensitive substring match, which
* probably fits with the 'LIKE' search but not the default MySQL
* or Sphinx search backends.
*
* @param Notice $notice
* @param string $search
* @return boolean
*/
function matchSearch(Notice $notice, $search)
{
return (mb_stripos($notice->content, $search) !== false);
}
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/**
*
* @param NoticeSearchAction $action
* @param string $q
* @param Notice $notice
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* @return boolean hook result
*/
function onStartNoticeSearchShowResults($action, $q, $notice)
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{
$user = common_current_user();
if ($user) {
$search = $q;
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$searchsub = SearchSub::pkeyGet(array('search' => $search,
'profile_id' => $user->id));
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if ($searchsub) {
$form = new SearchUnsubForm($action, $search);
} else {
$form = new SearchSubForm($action, $search);
}
$action->elementStart('div', 'entity_actions');
$action->elementStart('ul');
$action->elementStart('li', 'entity_subscribe');
$form->show();
$action->elementEnd('li');
$action->elementEnd('ul');
$action->elementEnd('div');
}
return true;
}
}