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sources/apps/activity/lib/data.php
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<?php
/**
* ownCloud - Activity App
*
* @author Frank Karlitschek
* @copyright 2013 Frank Karlitschek frank@owncloud.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Activity;
/**
* @brief Class for managing the data in the activities
*/
class Data
{
const PRIORITY_VERYLOW = 10;
const PRIORITY_LOW = 20;
const PRIORITY_MEDIUM = 30;
const PRIORITY_HIGH = 40;
const PRIORITY_VERYHIGH = 50;
/**
* @brief Send an event into the activity stream
* @param string $app The app where this event is associated with
* @param string $subject A short description of the event
* @param string $message A longer description of the event
* @param string $file The file including path where this event is associated with. (optional)
* @param string $link A link where this event is associated with (optional)
* @return boolean
*/
public static function send($app, $subject, $subjectparams = array(), $message = '', $messageparams = array(), $file = '', $link = '', $affecteduser = '', $type = 0, $prio = Data::PRIORITY_MEDIUM)
{
$timestamp = time();
$user = \OCP\User::getUser();
if($affecteduser === '') {
$auser = \OCP\User::getUser();
} else{
$auser = $affecteduser;
}
// store in DB
$query = \OCP\DB::prepare('INSERT INTO `*PREFIX*activity`(`app`, `subject`, `subjectparams`, `message`, `messageparams`, `file`, `link`, `user`, `affecteduser`, `timestamp`, `priority`, `type`)' . ' VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? )');
$query->execute(array($app, $subject, serialize($subjectparams), $message, serialize($messageparams), $file, $link, $user, $auser, $timestamp, $prio, $type));
// call the expire function only every 1000x time to preserve performance.
if (rand(0, 1000) == 0) {
Data::expire();
}
// fire a hook so that other apps like notification systems can connect
// todo translations
\OCP\Util::emitHook('OC_Activity', 'post_event', array('app' => $app, 'subject' => $subject, 'user' => $user, 'affecteduser' => $affecteduser, 'message' => $message, 'file' => $file, 'link'=> $link, 'prio' => $prio, 'type' => $type));
return true;
}
/**
* @brief Translate an event string with the translations from the app where it was send from
* @param string $app The app where this event comes from
* @param string $text The text including placeholders
* @param array $params The parameter for the placeholder
* @return string translated
*/
public static function translation($app, $text, $params)
{
$l = \OCP\Util::getL10N($app);
$result = $l->t($text, $params);
unset($l);
return($result);
}
/**
* @brief Read a list of events from the activity stream
* @param int $start The start entry
* @param int $count The number of statements to read
* @return array
*/
public static function read($start, $count)
{
// get current user
$user = \OCP\User::getUser();
// fetch from DB
$query = \OCP\DB::prepare('SELECT `activity_id`, `app`, `subject`, `subjectparams`, `message`, `messageparams`, `file`, `link`, `timestamp`, `priority`, `type`, `user`, `affecteduser` FROM `*PREFIX*activity` WHERE `affecteduser` = ? ORDER BY `timestamp` desc', $count, $start);
$result = $query->execute(array($user));
$activity = array();
while ($row = $result->fetchRow()) {
$row['subject'] = Data::translation($row['app'],$row['subject'],unserialize($row['subjectparams']));
$row['message'] = Data::translation($row['app'],$row['message'],unserialize($row['messageparams']));
$activity[] = $row;
}
return $activity;
}
/**
* @brief Get a list of events which contain the query string
* @param string $txt The query string
* @param int $count The number of statements to read
* @return array
*/
public static function search($txt, $count)
{
// get current user
$user = \OCP\User::getUser();
// search in DB
$query = \OCP\DB::prepare('SELECT `activity_id`, `app`, `subject`, `message`, `file`, `link`, `timestamp`, `priority`, `type`, `user`, `affecteduser` FROM `*PREFIX*activity` WHERE `affecteduser` = ? AND ((`subject` LIKE ?) OR (`message` LIKE ?) OR (`file` LIKE ?)) ORDER BY `timestamp` desc', $count);
$result = $query->execute(array($user, '%' . $txt . '%', '%' . $txt . '%', '%' . $txt . '%')); //$result = $query->execute(array($user,'%'.$txt.''));
$activity = array();
while ($row = $result->fetchRow()) {
$row['subject'] = Data::translation($row['app'],$row['subject'],unserialize($row['subjectparams']));
$row['message'] = Data::translation($row['app'],$row['message'],unserialize($row['messageparams']));
$activity[] = $row;
}
return $activity;
}
/**
* @brief Show a specific event in the activities
* @param array $event An array with all the event data in it
*/
public static function show($event)
{
$l = \OC_L10N::get('lib');
$user = $event['user'];
if (!isset($event['isGrouped'])){
$event['isGrouped'] = false;
}
$formattedDate = \OCP\Util::formatDate($event['timestamp']);
$formattedTimestamp = \OCP\relative_modified_date($event['timestamp']);
$displayName = \OCP\User::getDisplayName($user);
// TODO: move into template?
echo('<div class="box">');
echo('<div class="header">');
echo('<span class="avatar" data-user="' . \OC_Util::sanitizeHTML($user) . '"></span>');
echo('<span>');
echo('<span class="user">' . \OC_Util::sanitizeHTML($displayName) . '</span>');
echo('<span class="activitytime tooltip" title="' . \OC_Util::sanitizeHTML($formattedDate) . '">' . \OC_Util::sanitizeHTML($formattedTimestamp) . '</span>');
echo('<span class="appname">' . \OC_Util::sanitizeHTML($event['app']) . '</span>');
echo('</span>');
echo('</div>');
echo('<div class="messagecontainer">');
if ($event['isGrouped']){
$count = 0;
echo('<ul class="activitysubject grouped">');
foreach($event['events'] as $subEvent){
echo('<li>');
if ($subEvent['link'] <> '') echo('<a href="' . $subEvent['link'] . '">');
echo(\OC_Util::sanitizeHTML($subEvent['subject']));
if ($subEvent['link'] <> '') echo('</a>');
echo('</li>');
$count++;
if ($count > 5){
echo('<li class="more">' . $l->n('%n more...', '%n more...', count($event['events']) - $count) . '</li>');
break;
}
}
echo('</ul>');
}
else{
if ($event['link'] <> '') echo('<a href="' . $event['link'] . '">');
echo('<div class="activitysubject">' . \OC_Util::sanitizeHTML($event['subject']) . '</div>');
echo('<div class="activitymessage">' . \OC_Util::sanitizeHTML($event['message']) . '</div>');
}
$rootView = new \OC\Files\View('');
if ($event['file'] !== null){
$exist = $rootView->file_exists('/' . $user . '/files' . $event['file']);
unset($rootView);
// show a preview image if the file still exists
if ($exist) {
echo('<img class="preview" src="' . \OCP\Util::linkToRoute('core_ajax_preview', array('file' => $event['file'], 'x' => 150, 'y' => 150)) . '" />');
}
}
if (!$event['isGrouped'] && $event['link'] <> '') echo('</a>');
echo('</div>'); // end messagecontainer
echo('</div>'); // end box
}
/**
* @brief Expire old events
*/
public static function expire()
{
// keep activity feed entries for one year
$ttl = (60 * 60 * 24 * 365);
$timelimit = time() - $ttl;
$query = \OCP\DB::prepare('DELETE FROM `*PREFIX*activity` where `timestamp`<?');
$query->execute(array($timelimit));
}
/**
* @brief Generate an RSS feed
* @param string $link
* @param string $content
*/
public static function generaterss($link, $content)
{
$writer = xmlwriter_open_memory();
xmlwriter_set_indent($writer, 4);
xmlwriter_start_document($writer, '1.0', 'utf-8');
xmlwriter_start_element($writer, 'rss');
xmlwriter_write_attribute($writer, 'version', '2.0');
xmlwriter_write_attribute($writer, 'xmlns:atom', 'http://www.w3.org/2005/Atom');
xmlwriter_start_element($writer, 'channel');
xmlwriter_write_element($writer, 'title', 'my ownCloud');
xmlwriter_write_element($writer, 'language', 'en-us');
xmlwriter_write_element($writer, 'link', $link);
xmlwriter_write_element($writer, 'description', 'A personal ownCloud activities');
xmlwriter_write_element($writer, 'pubDate', date('r'));
xmlwriter_write_element($writer, 'lastBuildDate', date('r'));
xmlwriter_start_element($writer, 'atom:link');
xmlwriter_write_attribute($writer, 'href', $link);
xmlwriter_write_attribute($writer, 'rel', 'self');
xmlwriter_write_attribute($writer, 'type', 'application/rss+xml');
xmlwriter_end_element($writer);
// items
for ($i = 0; $i < count($content); $i++) {
xmlwriter_start_element($writer, 'item');
if (isset($content[$i]['subject'])) {
xmlwriter_write_element($writer, 'title', $content[$i]['subject']);
}
if (isset($content[$i]['link'])) xmlwriter_write_element($writer, 'link', $content[$i]['link']);
if (isset($content[$i]['link'])) xmlwriter_write_element($writer, 'guid', $content[$i]['link']);
if (isset($content[$i]['timestamp'])) xmlwriter_write_element($writer, 'pubDate', date('r', $content[$i]['timestamp']));
if (isset($content[$i]['message'])) {
xmlwriter_start_element($writer, 'description');
xmlwriter_start_cdata($writer);
xmlwriter_text($writer, $content[$i]['message']);
xmlwriter_end_cdata($writer);
xmlwriter_end_element($writer);
}
xmlwriter_end_element($writer);
}
xmlwriter_end_element($writer);
xmlwriter_end_element($writer);
xmlwriter_end_document($writer);
$entry = xmlwriter_output_memory($writer);
unset($writer);
return ($entry);
}
}
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