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egroupware_official/notifications/inc/class.notifications_popup.inc.php

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<?php
/**
* EGroupware - Notifications
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*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package notifications
* @subpackage backends
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* @link http://www.egroupware.org
* @author Cornelius Weiss <nelius@cwtech.de>, Christian Binder <christian@jaytraxx.de>
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* @version $Id$
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*/
/**
* Instant user notification with egroupware popup.
*
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* @abstract egwpopup is a two stage notification. In the first stage
* notification is written into self::_notification_table.
* In the second stage a request from the client reads
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* out the table to look if there is a notificaton for this
* client. The second stage is done in class.notifications_ajax.inc.php
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*/
class notifications_popup implements notifications_iface {
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/**
* Appname
*/
const _appname = 'notifications';
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/**
* Notification table in SQL database
*/
const _notification_table = 'egw_notificationpopup';
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/**
* Notification type
*/
const _type = 'base';
/**
* holds account object for user who sends the message
*
* @var object
*/
private $sender;
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/**
* holds account object for user to notify
*
* @var object
*/
private $recipient;
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/**
* holds config object (sitewide application config)
*
* @var object
*/
private $config;
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/**
* holds preferences object of user to notify
*
* @var object
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*/
private $preferences;
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/**
* holds db object of SQL database
*
* @var egw_db
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*/
private $db;
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/**
* constructor of notifications_egwpopup
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*
* @param object $_sender
* @param object $_recipient
* @param object $_config
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* @param object $_preferences
*/
public function __construct($_sender, $_recipient, $_config = null, $_preferences = null) {
//error_log(__METHOD__."(".array2string($_sender).', '.array2string($_recipient).', '.array2string($config).',...)');
if(!is_object($_sender)) { throw new Exception("no sender given."); }
if(!is_object($_recipient)) { throw new Exception("no recipient given."); }
$this->sender = $_sender;
$this->recipient = $_recipient;
$this->config = $_config;
$this->preferences = $_preferences;
$this->db = $GLOBALS['egw']->db;
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}
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/**
* sends notification if user is online
*
* @param array $_messages
* @param string $_subject
* @param array $_links
* @param array $_attachments
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*/
public function send(array $_messages, $_subject = false, $_links = false, $_attachments = false) {
// Check access log to see if user is still logged in
if ( !egw_session::notifications_active($this->recipient->account_id) )
{
throw new Exception("User {$this->recipient->account_lid} isn't online. Can't send notification via popup");
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}
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$message = $this->render_infos($_subject)
.html::hr()
.(isset($_messages['popup'])&&!empty($_messages['popup'])?$_messages['popup']:$_messages['html'])
.$this->render_links($_links);
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$this->save( $message );
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}
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/**
* saves notification into database so that the client can fetch it from there
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*
* @param string $_message
* @param array $_user_sessions
*/
private function save( $_message ) {
$result = $this->db->insert( self::_notification_table, array(
'account_id' => $this->recipient->account_id,
'notify_message' => $_message,
'notify_type' => self::_type
), false,__LINE__,__FILE__,self::_appname);
if ($result === false) throw new Exception("Can't save notification into SQL table");
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}
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/**
* renders plaintext/html links from given link array
* should be moved to the ajax class later - like mentioned in the Todo
*
* @param array $_links
* @return html rendered link(s) as complete string with jspopup or a new window
*/
private function render_links($_links = false) {
if(!is_array($_links) || count($_links) == 0) { return false; }
$newline = "<br />";
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$rendered_links = array();
foreach($_links as $link) {
if(!$link->popup) { $link->view['no_popup'] = 1; }
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$url = html::link('/index.php', $link->view);
// do not expose sensitive data
$url = preg_replace('/(sessionid|kp3|domain)=[^&]+&?/','',$url);
// extract application-icon from menuaction
if($link->view['menuaction']) {
$menuaction_arr = explode('.',$link->view['menuaction']);
$application = $menuaction_arr[0];
$image = $application ? html::image($application,'navbar',$link->text,'align="middle" style="width: 24px; margin-right: 0.5em;"') : '';
} else {
$image = '';
}
if($link->popup && !$GLOBALS['egw_info']['user']['preferences']['notifications']['external_mailclient'])
{
$dimensions = explode('x', $link->popup);
$rendered_links[] = html::div($image.$link->text,'onclick="'.$this->jspopup($url, '_blank', $dimensions[0], $dimensions[1]).'"','link');
} else {
$rendered_links[] = html::div('<a href="'.$url.'" target="_blank">'.$image.$link->text.'</a>','','link');
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}
}
if(count($rendered_links) > 0) {
return html::hr().html::bold(lang('Linked entries:')).$newline.implode($newline,$rendered_links);
}
}
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/**
* returns javascript to open a popup window: window.open(...)
*
* @param string $link link or this.href
* @param string $target='_blank' name of target or this.target
* @param int $width=750 width of the window
* @param int $height=400 height of the window
* @return string javascript (using single quotes)
*/
private function jspopup($link,$target='_blank',$width=750,$height=410)
{
if($GLOBALS['egw_info']['user']['preferences']['notifications']['external_mailclient'])
{
return 'window.open('.($link == 'this.href' ? $link : "'".$link."'").','.
($target == 'this.target' ? $target : "'".$target."'").",$width,$height,'yes')";
}
else
{
return 'egw_openWindowCentered2('.($link == 'this.href' ? $link : "'".$link."'").','.
($target == 'this.target' ? $target : "'".$target."'").",$width,$height,'yes')";
}
}
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/**
* renders additional infos from sender and subject
*
* @param string $_subject
* @return html rendered info as complete string
*/
private function render_infos($_subject = false) {
$infos = array();
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$newline = "<br />";
$sender = $this->sender->account_fullname ? $this->sender->account_fullname : $this->sender_account_email;
$infos[] = lang('Message from').': '.$sender;
if(!empty($_subject)) { $infos[] = html::bold($_subject); }
return implode($newline,$infos);
}
/**
* Actions to take when deleting an account
*
* @param settings array with keys account_id and new_owner (new_owner is optional)
*/
public static function deleteaccount($settings) {
$GLOBALS['egw']->db->delete( self::_notification_table, array(
'account_id' => $settings['account_id']
),__LINE__,__FILE__,self::_appname);
}
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}