New notificaion module

/**
 * Notifies users according to their preferences.
 * 
 * @abstract NOTE:Notifications are small messages. No subject and no attechments. 
 * If you need this kind of elements you probably want to send a mail, don't you :-)
 * @abstract NOTE: This is for instant notifications. If you need time dependend notifications use the 
 * asyncservices wrapper!
 * 
 * The classes doing the notifications are called notification_<method> and should only be 
 * called from this class.
 *
 */

notifications/inc/class.iface_notification.inc.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ */
+
+/**
+ * Instant user notification
+ */
+interface iface_notification {
+
+	/**
+	 * constructor 
+	 *
+	 * @param object $_account
+	 * @param object $_preferences
+	 */
+	public function __construct( $_account, $_preferences );
+	
+	/**
+	 * sends notification
+	 *
+	 * @param string $_message
+	 */
+	public function send( $_message );
+}

notifications/inc/class.notification.inc.php

@@ -0,0 +1,128 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ */
+
+/**
+ * Notifies users according to there preferences.
+ * 
+ * @abstract NOTE:Notifications are small messages. No subject and no attechments. 
+ * If you need this kind of elements you probably want to send a mail, woun't you :-)
+ * @abstract NOTE: This is for instant notifications. If you need time dependend notifications use the 
+ * asyncservices wrapper!
+ * 
+ * The classes doing the notifications are called notification_<method> and should only be 
+ * called from this class.
+ * The <method> gets extractd out of the preferences labels.
+ *
+ */
+final class notification {
+
+	/**
+	 * Appname
+	 */
+	const _appname = 'notifications';
+	
+	/**
+	 * array with objects of receivers
+	 * @var array
+	 */
+	private $receivers = array();
+	
+	/**
+	 * holds notification message
+	 * @var string
+	 */
+	private $message = '';
+	
+	/**
+	 * sets notification message
+	 * @param string &$message
+	 */
+	public function set_message($_message) {
+		$this->message = $_message;
+		return true;
+	}
+	
+	/**
+	 * Set receivers for the current notification
+	 *
+	 * @param array $_receivers array with objects of accounts
+	 * as long as the accounts class isn't a nice object, it's an array of account id's :-(
+	 */
+	public function set_receivers(array $_receivers) {
+		foreach ($_receivers as $receiver_id) {
+			$receiver = $GLOBALS['egw']->accounts->get_account_data($receiver_id);
+			$receiver[$receiver_id]['id'] = $receiver_id;
+			$this->receivers[$receiver_id] = (object)$receiver[$receiver_id];
+		}
+	}
+	
+	/**
+	 * sends notification 
+	 */
+	public function send() {
+		if (empty($this->receivers) || !$this->message) {
+			throw new Exception('Error: Coud not send notification. No receiver or no message where supplied');
+		}
+		
+		foreach ($this->receivers as $receiver) {
+			$prefs = new preferences($receiver->id);
+			$preferences = $prefs->read();
+			$preferences = (object)$preferences[self::_appname ];
+			
+			if (!$preferences->disable_ajaxpopup) {
+				$notification_backends[] = 'notification_popup';
+			}
+			
+			$send_succseed = 0;
+			foreach ((array)$notification_backends as $notification_backend) {
+				try {
+					require_once(EGW_INCLUDE_ROOT. SEP. self::_appname. SEP. 'inc'. SEP. 'class.'. $notification_backend. '.inc.php');
+					
+					$obj = @new $notification_backend( $receiver, $preferences );
+					if ( !is_a( $obj, iface_notification )) {
+						unset ( $obj );
+						throw new Exception('Error: '.$notification_backend. ' is no implementation of iface_notification');
+					}
+					
+					$obj->send( $this->message );
+					$send_succseed++;
+				}
+				catch (Exception $exception) {
+					$send_succseed--;
+					echo $exception->getMessage(), "\n";
+				}
+			}
+			
+			if ($send_succseed == 0) {
+				throw new Exception('Error: Was not able to send Notification to user!');
+			}
+		}
+	}
+	
+	/**
+	 * gets message
+	 * 
+	 * @return string
+	 */
+	public function get_message() {
+		return $this->message;
+	}
+	
+	/**
+	 * gets receivers
+	 *
+	 * @return array of account objects
+	 */
+	public function get_receivers() {
+		return $this->receivers;
+	}
+
+}

notifications/inc/class.notification_popup.inc.php

@@ -0,0 +1,163 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @subpackage ajaxpopup
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ */
+
+require_once('class.iface_notification.inc.php');
+
+/**
+ * Instant user notification with egroupware popup.
+ * egwpopup is a two stage notification. In the first stage 
+ * notification is written into self::_notification_egwpopup
+ * table. In the second stage a request from the client reads
+ * out the table to look if there is a notificaton for this 
+ * client. (multidisplay is supported)
+ */
+class notification_popup implements iface_notification {
+
+	/**
+	 * Notification window {div|alert}
+	 */
+	const _window = 'div';
+	
+	/**
+	 * Appname
+	 */
+	const _appname = 'notifications';
+	
+	/**
+	 * Notification table in SQL database
+	 */
+	const _notification_table = 'egw_notificationpopup';
+	
+	/**
+	 * holds account object for user to notify
+	 *
+	 * @var object
+	 */
+	private $account;
+	
+	/**
+	 * holds preferences object of user to notify
+	 *
+	 * @var unknown_type
+	 */
+	private $preferences;
+	
+	/**
+	 * holds db object of SQL database
+	 *
+	 * @var unknown_type
+	 */
+	private $db;
+	
+	/**
+	 * constructor of notification_egwpopup
+	 *
+	 * @param object $_account
+	 * @param object $_preferences
+	 */
+	public function __construct( $_account=false, $_preferences=false) {
+		// If we are called from class notification account and prefs are objects.
+		// otherwise we have to fetch this objects for current user.
+		if (!is_object($_account)) {
+			$account_id = $GLOBALS['egw_info']['user']['account_id'];
+			$this->account = $GLOBALS['egw']->accounts->get_account_data($account_id);
+			$this->account[$account_id]['id'] = $account_id;
+			$this->account = (object)$this->account[$account_id];
+		}
+		else {
+			$this->account = $_account;
+		}
+		$this->preferences = is_object($_preferences) ? $_preferences : $GLOBALS['egw']->preferences;
+		$this->db = &$GLOBALS['egw']->db;
+		$this->db->set_app( self::_appname );
+	}
+	
+	/**
+	 * sends notification if user is online
+	 *
+	 * @param string $_message
+	 */
+	public function send( $_message ) {
+		$sessions = $GLOBALS['egw']->session->list_sessions(0, 'asc', 'session_dla', true);
+		$user_sessions = array();
+		foreach ($sessions as $session) {
+			if ($session['session_lid'] == $this->account->lid. '@'. $GLOBALS['egw_info']['user']['domain']) {
+				$user_sessions[] = $session['session_id'];
+			}
+		}
+		if ( empty($user_sessions) ) throw new Exception("Notice: User isn't online. Can't send notification via popup");
+		$this->save( $_message, $user_sessions );
+	}
+	
+	/**
+	 * Gets all notification for current user.
+	 * Requests and response is done via xajax
+	 * 
+	 * @return xajax response
+	 */
+	public function ajax_get_notifications() {
+		$response =& new xajaxResponse();
+		$session_id = $GLOBALS['egw_info']['user']['sessionid'];
+		$message = '';
+		$this->db->select(self::_notification_table, 
+			'*', array(
+				'account_id' => $this->account->id,
+				'session_id' => $session_id,
+			),
+			__LINE__,__FILE__);
+		if ($this->db->num_rows() != 0)	{
+			while ($notification = $this->db->row(true)) {
+				switch (self::_window ) {
+					case 'div' :
+						$message .= nl2br($notification['message']). '<br>';
+						break;
+					case 'alert' :
+						$message .= $notification['message']. "\n";
+						break;
+				}
+			}
+			$this->db->delete(self::_notification_table,array(
+				'account_id' =>$this->account->id,
+				'session_id' => $session_id,
+			),__LINE__,__FILE__);
+			
+			switch (self::_window) {
+				case 'div' :
+					$response->addAppend('notificationwindow_message','innerHTML',$message);
+					$response->addScript('notificationwindow_display();');
+					break;
+				case 'alert' :
+					$response->addAlert($message);
+					break;
+			}
+		}
+		return $response->getXML();
+	}
+	
+	/**
+	 * saves notification into database so that the client can fetch it from 
+	 * there via notification->get
+	 *
+	 * @param string $_message
+	 * @param array $_user_sessions
+	 */
+	private function save( $_message, array $_user_sessions ) {
+		foreach ($_user_sessions as $user_session) {
+			$result =& $this->db->insert( self::_notification_table, array(
+				'account_id'	=> $this->account->id,
+				'session_id'	=> $user_session,
+				'message'		=> $_message
+				), false,__LINE__,__FILE__);
+		}
+		if ($result === false) throw new Exception("Error: Can't save notification into SQL table");
+	}
+}

notifications/inc/class.uinotificationprefs.inc.php

@@ -0,0 +1,83 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ */
+
+require_once(EGW_INCLUDE_ROOT. SEP. 'etemplate'. SEP. 'inc'. SEP. 'class.etemplate.inc.php');
+
+class uinotificationprefs {
+	
+	const _appname = 'notifications';
+	
+	public $public_functions = array(
+		'index' => true,
+	);
+	
+	/**
+	 * This are the preferences for notifications 
+	 *
+	 * @var array
+	 */
+	private $notification_preferences = array(
+		'disable_ajaxpopup' => '',		// bool: true / false
+	);
+	
+	/**
+	 * Holds preferences object for current user
+	 *
+	 * @var object 
+	 */
+	private $preferences;
+	
+	public function __construct($_account_id = 0, $_referer = false) {
+		$account_id = $_account_id > 0 ? $_account_id : $GLOBALS['egw_info']['user']['account_id'];
+		$this->preferences = new preferences($account_id);
+		$GLOBALS['egw_info']['flags']['app_header'] = lang('Preferences for notification');
+	}
+	
+	public function index($_content = false) {
+		$et = new etemplate(self::_appname. '.prefsindex');
+		$content = array();
+		$sel_options = array();
+		$readonlys = array();
+		$preserv = array();
+		if (is_array($_content)) {
+			if (is_array($_content['button'])) {
+				$preferences = array_intersect_key($_content, $this->notification_preferences);
+				list($button) = each($_content['button']);
+				switch ($button) {
+					case 'save' : 
+						$this->save($preferences);
+						$GLOBALS['egw']->redirect_link($_content['referer']);
+					case 'apply' :
+						$this->save($preferences);
+						break;
+					case 'cancel' :
+					default :
+						$GLOBALS['egw']->redirect_link($_content['referer']);
+				}
+			}
+		}
+		else {
+			$preferences = $this->preferences->read();
+			$preferences = $preferences[self::_appname];
+			$preserv['referer'] = $GLOBALS['egw']->common->get_referer();
+		}
+		
+		$content = array_merge($content,(array)$preferences);
+		return $et->exec(self::_appname. '.uinotificationprefs.index',$content,$sel_options,$readonlys,$preserv);
+	}
+	
+	private function save($_preferences) {
+		$this->preferences->read();
+		$this->preferences->user[self::_appname] = $_preferences;
+		$this->preferences->save_repository();
+		return;
+	}
+}

notifications/inc/hook_after_navbar.inc.php

@@ -0,0 +1,29 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ * serves the hook "after_navbar" to create the notificationwindow
+ * 
+ * @abstract notificatonwindow is an empty and non displayed 1px div which gets rezised 
+ * and populated if a notification is about to be displayed.
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @subpackage ajaxpoup
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ * @todo check if user wants notifications via egw popup!
+ */
+$GLOBALS['egw']->translation->add_app('notifications');
+if (!$GLOBALS['egw_info']['user']['preferences']['notifications']['disable_ajaxpopup']) {
+	echo '<script src="'. $GLOBALS['egw_info']['server']['webserver_url']. SEP. 'notifications'. SEP. 'js'. SEP. 'notificationajaxpopup.js'. '" type="text/javascript"></script>';
+	echo '<script type="text/javascript">notificationwindow_init()</script>';
+	echo '
+		<div id="notificationwindow" style="display: none; z-index: 999;">
+			<div id="divAppboxHeader">'. lang('Notification'). '</div>
+				<div id="divAppbox">
+				<div id="notificationwindow_message"</div>
+				<center><input type="submit" value="'. lang('ok'). '" onClick="notificationwindow_button_ok();"></center>
+			</div>
+		</div>
+	';
+}

notifications/inc/hook_preferences.inc.php

@@ -0,0 +1,23 @@
+<?php
+	/**
+	 * eGroupWare - Notifications
+	 *
+	 * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+	 * @package notifications
+	 * @link http://www.egroupware.org
+	 * @author Cornelius Weiss <nelius@cwtech.de>
+	 * @version $Id:  $
+	 */
+
+	$title = $appname;
+	$file = array(
+		'Preferences'    => $GLOBALS['egw']->link(
+			'/index.php',
+			'menuaction=notifications.uinotificationprefs.index',
+			'_account_id=0', 
+			'_referer='
+		),
+	);
+	
+	display_section($appname,$title,$file);
+?>

notifications/js/notificationajaxpopup.js

@@ -0,0 +1,41 @@
+/**
+ * eGroupWare - Notifications
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @subpackage ajaxpoup
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ */
+
+function notificationwindow_init() {
+	window.setTimeout("notificationwindow_refresh();", 1000);
+}
+
+function notificationwindow_setTimeout() {
+	window.setTimeout("notificationwindow_refresh();", 10000);
+}
+function notificationwindow_refresh() {
+	xajax_doXMLHTTP("notifications.notification_popup.ajax_get_notifications");
+	notificationwindow_setTimeout();
+}
+
+function notificationwindow_display() {
+	var notificationwindow;
+	notificationwindow = document.getElementById("notificationwindow");
+	notificationwindow.style.display = "inline";
+	notificationwindow.style.position = "absolute";
+	notificationwindow.style.width = "500px";
+	notificationwindow.style.left = screen.availWidth/2 - 250 + "px";
+	notificationwindow.style.top = screen.availHeight/4 + "px";
+	notificationwindow.style.height = "100%";
+}
+
+function notificationwindow_button_ok() {
+	var notificationwindow;
+	var notificationwindow_message;
+	notificationwindow = document.getElementById("notificationwindow");
+	notificationwindow_message = document.getElementById("notificationwindow_message");
+	notificationwindow.style.display = "none";
+	notificationwindow_message.innerHTML = "";
+}

notifications/setup/etemplates.inc.php

@@ -0,0 +1,9 @@
+<?php
+// eTemplates for Application 'notifications', generated by soetemplate::dump4setup() 2006-09-06 19:42
+
+/* $Id$ */
+
+$templ_version=1;
+
+$templ_data[] = array('name' => 'notifications.prefsindex','template' => '','lang' => '','group' => '0','version' => '','data' => 'a:1:{i:0;a:4:{s:4:"type";s:4:"grid";s:4:"data";a:6:{i:0;a:0:{}i:1;a:2:{s:1:"A";a:1:{s:4:"type";s:5:"label";}s:1:"B";a:1:{s:4:"type";s:5:"label";}}i:2;a:2:{s:1:"A";a:2:{s:4:"type";s:8:"checkbox";s:4:"name";s:17:"disable_ajaxpopup";}s:1:"B";a:2:{s:4:"type";s:5:"label";s:5:"label";s:40:"Don\'t notify me via popups in eGroupWare";}}i:3;a:2:{s:1:"A";a:1:{s:4:"type";s:5:"label";}s:1:"B";a:1:{s:4:"type";s:5:"label";}}i:4;a:2:{s:1:"A";a:1:{s:4:"type";s:5:"label";}s:1:"B";a:1:{s:4:"type";s:5:"label";}}i:5;a:2:{s:1:"A";a:5:{s:4:"type";s:4:"hbox";s:4:"size";s:1:"2";s:4:"span";s:3:"all";i:1;a:4:{s:4:"type";s:4:"hbox";s:4:"size";s:1:"2";i:1;a:3:{s:4:"type";s:6:"button";s:5:"label";s:4:"save";s:4:"name";s:12:"button[save]";}i:2;a:3:{s:4:"type";s:6:"button";s:5:"label";s:5:"apply";s:4:"name";s:13:"button[apply]";}}i:2;a:4:{s:4:"type";s:6:"button";s:5:"label";s:6:"cancel";s:5:"align";s:5:"right";s:4:"name";s:14:"button[cancel]";}}s:1:"B";a:1:{s:4:"type";s:5:"label";}}}s:4:"rows";i:5;s:4:"cols";i:2;}}','size' => '','style' => '','modified' => '1157394610',);
+

notifications/setup/phpgw_de.lang

@@ -0,0 +1,4 @@
+don't notify me via popups in egroupware	notifications	de	Benachrichtigungen durch Popups unterdrücken.
+notification	notifications	de	Benachrichtigung
+ok	notifications	de	ok
+preferences for notification	notifications	de	Benachrichtigungs-Einstellungen

notifications/setup/phpgw_en.lang

@@ -0,0 +1,4 @@
+don't notify me via popups in egroupware	notifications	en	Don't notify me via popups in eGroupWare
+notification	notifications	en	Notification
+ok	notifications	en	ok
+preferences for notification	notifications	en	Preferences for notification

notifications/setup/setup.inc.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ */
+
+if (!defined('NOTIFICATION_APP'))
+{
+	define('NOTIFICATION_APP','notifications');
+}
+
+$setup_info[NOTIFICATION_APP]['name']      = NOTIFICATION_APP;
+$setup_info[NOTIFICATION_APP]['version']   = '0.5';
+$setup_info[NOTIFICATION_APP]['app_order'] = 1;
+$setup_info[NOTIFICATION_APP]['tables']    = array('egw_notificationpopup');
+$setup_info[NOTIFICATION_APP]['enable']    = 2;
+
+$setup_info[NOTIFICATION_APP]['author'] = 
+$setup_info[NOTIFICATION_APP]['maintainer'] = array(
+	'name'  => 'Cornelius Weiss',
+	'email' => 'nelius@cwtech.de'
+);
+$setup_info[NOTIFICATION_APP]['license']  = 'GPL';
+$setup_info[NOTIFICATION_APP]['description'] = 
+'Instant norification of users via various channels.';
+
+/* The hooks this app includes, needed for hooks registration */
+$setup_info[NOTIFICATION_APP]['hooks'][] = 'after_navbar';
+$setup_info[NOTIFICATION_APP]['hooks'][] = 'preferences';
+//$setup_info[NOTIFICATION_APP]['hooks']['settings'] = NOTIFICATION_APP.'.ts_admin_prefs_sidebox_hooks.settings';
+//$setup_info[NOTIFICATION_APP]['hooks']['admin'] = NOTIFICATION_APP.'.ts_admin_prefs_sidebox_hooks.all_hooks';
+//$setup_info[NOTIFICATION_APP]['hooks']['sidebox_menu'] = NOTIFICATION_APP.'.ts_admin_prefs_sidebox_hooks.all_hooks';
+//$setup_info[NOTIFICATION_APP]['hooks']['search_link'] = NOTIFICATION_APP.'.bonotification.search_link';
+
+/* Dependencies for this app to work */
+$setup_info[NOTIFICATION_APP]['depends'][] = array(
+	 'appname' => 'phpgwapi',
+	 'versions' => Array('1.2','1.3')
+);
+$setup_info[NOTIFICATION_APP]['depends'][] = array(
+	 'appname' => 'etemplate',
+	 'versions' => Array('1.2','1.3')
+);

notifications/setup/tables_current.inc.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @link http://www.egroupware.org
+ * @author Cornelius Weiss <nelius@cwtech.de>
+ * @version $Id:  $
+ */
+
+	$phpgw_baseline = array(
+		'egw_notificationpopup' => array(
+			'fd' => array(
+				'account_id' => array('type' => 'varchar','precision' => '255','nullable' => False),
+				'session_id' => array('type' => 'varchar','precision' => '255','nullable' => False),
+				'message' => array('type' => 'longtext')
+			),
+			'pk' => array(),
+			'fk' => array(),
+			'ix' => array('account_id','session_id'),
+			'uc' => array()
+		)
+	);

xajax.php

@@ -62,7 +62,6 @@
 			error_log($_SERVER['PHP_SELF']. ' stopped for security reason. '.$arg0.' is not valid. class- or function-name must start with ajax!!!');
 			exit;
 		}
-		
 		$GLOBALS['egw_info'] = array(
 			'flags' => array(
 				'currentapp'			=> $appName,