gnu-social/plugins/UserFlag/UserFlagPlugin.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Allows users to flag content and accounts as offensive/spam/whatever
*
* 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 Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
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if (!defined('STATUSNET')) {
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exit(1);
}
/**
* Allows users to flag content and accounts as offensive/spam/whatever
*
* @category Plugin
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class UserFlagPlugin extends Plugin
{
const REVIEWFLAGS = 'UserFlagPlugin::reviewflags';
const CLEARFLAGS = 'UserFlagPlugin::clearflags';
public $flagOnBlock = true;
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/**
* Hook for ensuring our tables are created
*
* Ensures that the user_flag_profile table exists
* and has the right columns.
*
* @return boolean hook return
*/
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function onCheckSchema()
{
$schema = Schema::get();
// For storing user-submitted flags on profiles
$schema->ensureTable('user_flag_profile', User_flag_profile::schemaDef());
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return true;
}
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/**
* Add our actions to the URL router
*
* @param Net_URL_Mapper $m URL mapper for this hit
*
* @return boolean hook return
*/
function onRouterInitialized($m)
{
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$m->connect('main/flag/profile', array('action' => 'flagprofile'));
$m->connect('main/flag/clear', array('action' => 'clearflag'));
$m->connect('panel/profile/flag', array('action' => 'adminprofileflag'));
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return true;
}
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/**
* Add a 'flag' button to profile page
*
* @param Action $action The action being called
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* @param Profile $profile Profile being shown
*
* @return boolean hook result
*/
function onEndProfilePageActionsElements($action, $profile)
{
$this->showFlagButton($action, $profile,
array('action' => 'showstream',
'nickname' => $profile->nickname));
return true;
}
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/**
* Add a 'flag' button to profiles in a list
*
* @param ProfileListItem $item item being shown
*
* @return boolean hook result
*/
function onEndProfileListItemActionElements($item)
{
list($action, $args) = $item->action->returnToArgs();
$args['action'] = $action;
$this->showFlagButton($item->action, $item->profile, $args);
return true;
}
/**
* Actually output a flag button. If the target profile has already been
* flagged by the current user, a null-action faux button is shown.
*
* @param Action $action
* @param Profile $profile
* @param array $returnToArgs
*/
protected function showFlagButton($action, $profile, $returnToArgs)
{
$user = common_current_user();
if (!empty($user) && ($user->id != $profile->id)) {
$action->elementStart('li', 'entity_flag');
if (User_flag_profile::exists($profile->id, $user->id)) {
// @todo FIXME: Add a title explaining what 'flagged' means?
// TRANS: Message added to a profile if it has been flagged for review.
$action->element('p', 'flagged', _m('Flagged'));
} else {
$form = new FlagProfileForm($action, $profile, $returnToArgs);
$form->show();
}
$action->elementEnd('li');
}
}
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/**
* Check whether a user has one of our defined rights
*
* We define extra rights; this function checks to see if a
* user has one of them.
*
* @param User $user User being checked
* @param string $right Right we're checking
* @param boolean &$result out, result of the check
*
* @return boolean hook result
*/
function onUserRightsCheck($user, $right, &$result)
{
switch ($right) {
case self::REVIEWFLAGS:
case self::CLEARFLAGS:
$result = $user->hasRole('moderator');
return false; // done processing!
}
return true; // unchanged!
}
/**
* Optionally flag profile when a block happens
*
* We optionally add a flag when a profile has been blocked
*
* @param User $user User doing the block
* @param Profile $profile Profile being blocked
*
* @return boolean hook result
*/
function onEndBlockProfile($user, $profile)
{
if ($this->flagOnBlock && !User_flag_profile::exists($profile->id,
$user->id)) {
User_flag_profile::create($user->id, $profile->id);
}
return true;
}
/**
* Ensure that flag entries for a profile are deleted
* along with the profile when deleting users.
* This prevents breakage of the admin profile flag UI.
*
* @param Profile $profile
* @param array &$related list of related tables; entries
* with matching profile_id will be deleted.
*
* @return boolean hook result
*/
function onProfileDeleteRelated($profile, &$related)
{
$related[] = 'user_flag_profile';
return true;
}
/**
* Ensure that flag entries created by a user are deleted
* when that user gets deleted.
*
* @param User $user
* @param array &$related list of related tables; entries
* with matching user_id will be deleted.
*
* @return boolean hook result
*/
function onUserDeleteRelated($user, &$related)
{
$related[] = 'user_flag_profile';
return true;
}
/**
* Provide plugin version information.
*
* This data is used when showing the version page.
*
* @param array &$versions array of version data arrays; see EVENTS.txt
*
* @return boolean hook value
*/
function onPluginVersion(&$versions)
{
$url = 'http://status.net/wiki/Plugin:UserFlag';
$versions[] = array('name' => 'UserFlag',
'version' => STATUSNET_VERSION,
'author' => 'Evan Prodromou',
'homepage' => $url,
'rawdescription' =>
// TRANS: Plugin description.
_m('This plugin allows flagging of profiles for review and reviewing flagged profiles.'));
return true;
}
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}