gnu-social/plugins/AnonymousFave/AnonymousFavePlugin.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* A plugin to allow anonymous users to favorite notices
*
* 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 Plugin
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
define('ANONYMOUS_FAVE_PLUGIN_VERSION', '0.1');
/**
* Anonymous Fave plugin to allow anonymous (not logged in) users
* to favorite notices
*
* @category Plugin
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class AnonymousFavePlugin extends Plugin {
function onArgsInitialize() {
// We always want a session because we're tracking anon users
common_ensure_session();
}
/**
* Hook for ensuring our tables are created
*
* Ensures the fave_tally table is there and has the right columns
*
* @return boolean hook return
*/
function onCheckSchema()
{
$schema = Schema::get();
// For storing total number of times a notice has been faved
$schema->ensureTable('fave_tally',
array(
new ColumnDef('notice_id', 'integer', null, false, 'PRI'),
new ColumnDef('count', 'integer', null, false),
new ColumnDef(
'modified',
'timestamp',
null,
false,
null,
'CURRENT_TIMESTAMP',
'on update CURRENT_TIMESTAMP'
)
)
);
return true;
}
function onEndShowHTML($action)
{
if (!common_logged_in()) {
// Set a place to return to when submitting forms
common_set_returnto($action->selfUrl());
}
}
function onEndShowScripts($action)
{
// Setup ajax calls for favoriting. Usually this is only done when
// a user is logged in.
$action->inlineScript('SN.U.NoticeFavor();');
}
function onAutoload($cls)
{
$dir = dirname(__FILE__);
switch ($cls) {
case 'Fave_tally':
include_once $dir . '/' . $cls . '.php';
return false;
case 'AnonFavorAction':
include_once $dir . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
return false;
case 'AnonDisFavorAction':
include_once $dir . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
return false;
case 'AnonFavorForm':
include_once $dir . '/anonfavorform.php';
return false;
case 'AnonDisFavorForm':
include_once $dir . '/anondisfavorform.php';
return false;
default:
return true;
}
}
function onStartInitializeRouter($m) {
$m->connect('main/anonfavor', array('action' => 'AnonFavor'));
$m->connect('main/anondisfavor', array('action' => 'AnonDisFavor'));
return true;
}
function onStartShowNoticeOptions($item) {
if (!common_logged_in()) {
$item->out->elementStart('div', 'notice-options');
$item->showFaveForm();
$item->out->elementEnd('div');
}
return true;
}
function onStartShowFaveForm($item) {
if (!common_logged_in()) {
$profile = $this->getAnonProfile();
if (!empty($profile)) {
if ($profile->hasFave($item->notice)) {
$disfavor = new AnonDisFavorForm($item->out, $item->notice);
$disfavor->show();
} else {
$favor = new AnonFavorForm($item->out, $item->notice);
$favor->show();
}
}
}
return true;
}
function createAnonProfile() {
// Get the anon user's IP, and turn it into a nickname
list($proxy, $ip) = common_client_ip();
// IP + time + random number should avoid collisions
$nickname = 'anonymous-' . $ip . '-' . time() . '-' . common_good_rand(5);
$profile = new Profile();
$profile->nickname = $nickname;
$id = $profile->insert();
if (!empty($id)) {
common_log(
LOG_INFO,
"AnonymousFavePlugin - created profile for anonymous user from IP: "
. $ip
. ', nickname = '
. $nickname
);
}
return $profile;
}
function getAnonProfile() {
$anon = $_SESSION['anon_nickname'];
$profile = null;
if (!empty($anon)) {
$profile = Profile::staticGet('nickname', $anon);
} else {
$profile = $this->createAnonProfile();
$_SESSION['anon_nickname'] = $profile->nickname;
}
if (!empty($profile)) {
return $profile;
}
}
/**
* Provide plugin version information.
*
* This data is used when showing the version page.
*
* @param array &$versions array of version data arrays; see EVENTS.txt
*
* @return boolean hook value
*/
function onPluginVersion(&$versions)
{
$url = 'http://status.net/wiki/Plugin:AnonymousFave';
$versions[] = array('name' => 'AnonymousFave',
'version' => ANONYMOUS_FAVE_PLUGIN_VERSION,
'author' => 'Zach Copley',
'homepage' => $url,
'rawdescription' =>
_m('Allow anonymous users to favorite notices.'));
return true;
}
}