mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-26 01:43:47 +01:00
507 lines
15 KiB
PHP
507 lines
15 KiB
PHP
<?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.'/phpgwapi/inc/class.html.inc.php');
|
|
require_once(EGW_INCLUDE_ROOT.'/phpgwapi/inc/class.config.inc.php');
|
|
|
|
/**
|
|
* Notifies users according to their preferences.
|
|
*
|
|
* @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';
|
|
|
|
/**
|
|
* backend to use for fallback reasons
|
|
*/
|
|
const _fallback = 'email_only';
|
|
|
|
/**
|
|
* pre-defined notificaton chains
|
|
* @abstract
|
|
* arrays with name => chain pairs
|
|
* the chain itself consists of an array with framework => action pairs
|
|
* where action defines what to do after the framework has been executed:
|
|
* stop: stop executing notifications
|
|
* fail: do not stop if framework fails, otherwise stop
|
|
* continue: execute next framework
|
|
*
|
|
* @var array
|
|
*/
|
|
private $notification_chains = array(
|
|
'disable' => false,
|
|
'popup_only' => array('popup' => 'stop'),
|
|
'winpopup_only' => array('winpopup' => 'stop'),
|
|
'email_only' => array('email' => 'stop'),
|
|
'popup_or_email' => array('popup' => 'fail', 'email' => 'stop'),
|
|
'winpopup_or_email' => array('winpopup' => 'fail', 'email' => 'stop'),
|
|
'popup_and_email' => array('popup' => 'continue', 'email' => 'stop'),
|
|
'winpopup_and_email' => array('winpopup' => 'continue', 'email' => 'stop'),
|
|
'egwpopup_and_winpopup' => array('popup' => 'continue', 'winpopup' => 'stop'),
|
|
'all' => array('popup' => 'continue', 'winpopup' => 'continue', 'email' => 'stop'),
|
|
);
|
|
|
|
/**
|
|
* array with objects of receivers
|
|
* @var array
|
|
*/
|
|
private $receivers = array();
|
|
|
|
/**
|
|
* objects of sender
|
|
* @var object
|
|
*/
|
|
private $sender;
|
|
|
|
/**
|
|
* holds notification subject
|
|
* @var string
|
|
*/
|
|
private $subject = '';
|
|
|
|
/**
|
|
* holds notification message in plaintext
|
|
* @var string
|
|
*/
|
|
private $message_plain = '';
|
|
|
|
/**
|
|
* holds notification message in html
|
|
* @var string
|
|
*/
|
|
private $message_html = '';
|
|
|
|
/**
|
|
* array with objects of links
|
|
* @var array
|
|
*/
|
|
private $links = array();
|
|
|
|
/**
|
|
* array with objects of attachments
|
|
* @var array
|
|
*/
|
|
private $attachments = array();
|
|
|
|
/**
|
|
* holds html object to render elements
|
|
*
|
|
* @var object
|
|
*/
|
|
private $html;
|
|
|
|
/**
|
|
* holds config object (sitewide configuration of app)
|
|
*
|
|
* @var object
|
|
*/
|
|
private $config;
|
|
|
|
/**
|
|
* constructor of notification
|
|
*
|
|
*/
|
|
public function __construct() {
|
|
$this->html = & html::singleton();
|
|
$config = new config(self::_appname);
|
|
$this->config = (object) $config->read_repository();
|
|
}
|
|
|
|
/**
|
|
* Set sender for the current notification
|
|
*
|
|
* @param $_sender object of account
|
|
* as long as the accounts class isn't a nice object,
|
|
* it's an int with the account id or the e-mail address of a non-eGW user
|
|
*/
|
|
public function set_sender($_sender) {
|
|
if(is_object($_sender)) {
|
|
$this->sender = $_sender;
|
|
return true;
|
|
} else {
|
|
// no object atm, we have to handle this and make a pseudo-object
|
|
if(is_numeric($_sender)) {
|
|
$this->sender = (object) $GLOBALS['egw']->accounts->read($_sender);
|
|
return true;
|
|
}
|
|
if(is_string($_sender) && strpos($_sender,'@')) {
|
|
$this->sender = (object) array (
|
|
'account_email' => $this->get_addresspart($_sender,'email'),
|
|
'account_fullname' => $this->get_addresspart($_sender,'fullname'),
|
|
);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 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 with the int of the account id or the e-mail address of a non-eGW user
|
|
*/
|
|
public function set_receivers(array $_receivers) {
|
|
$this->receivers = array();
|
|
foreach ($_receivers as $receiver) {
|
|
$this->add_receiver($receiver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add single receiver for the current notification
|
|
*
|
|
* @param $_receiver object of account
|
|
* as long as the accounts class isn't a nice object,
|
|
* it's an int with the account id or the e-mail address of a non-eGW user
|
|
*/
|
|
public function add_receiver($_receiver) {
|
|
if(is_object($_receiver)) {
|
|
$this->receivers[] = $_receiver;
|
|
return true;
|
|
} else {
|
|
// no object atm, we have to handle this and make a pseudo-object
|
|
if(is_numeric($_receiver)) {
|
|
$this->receivers[] = (object) $GLOBALS['egw']->accounts->read($_receiver);
|
|
return true;
|
|
}
|
|
if(is_string($_receiver) && strpos($_receiver,'@')) {
|
|
$this->receivers[] = (object) array (
|
|
'account_email' => $this->get_addresspart($_receiver,'email'),
|
|
'account_fullname' => $this->get_addresspart($_receiver,'fullname'),
|
|
);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* sets notification subject
|
|
*
|
|
* @param string $_subject
|
|
*/
|
|
public function set_subject($_subject) {
|
|
$this->subject = $_subject;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* sets notification message
|
|
* @abstract $_message accepts plaintext or html
|
|
* NOTE: There is no XSS prevention in notifications framework!
|
|
* You have to filter userinputs yourselve (e.g. htmlspechialchars() )
|
|
* If you want to set plain AND html messages, just call this function
|
|
* two times, it autodetects the type of your input
|
|
*
|
|
* @param string $_message
|
|
*/
|
|
public function set_message($_message) {
|
|
if(strlen($_message) == strlen(strip_tags($_message))) {
|
|
$this->message_plain = $_message;
|
|
} else {
|
|
$this->message_html = $_message;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* sets the notification links
|
|
*
|
|
* @param array $links link array (like defined in $this->add_link)
|
|
*/
|
|
public function set_links(array $_links) {
|
|
$this->links = array(); // clear array if set
|
|
foreach($_links as $link) {
|
|
if(is_array($link)) {
|
|
$this->add_link($link['menuaction'], $link['params'], $link['text']);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* adds a notification link
|
|
*
|
|
* @param string $menuaction egw menuaction (appname.classname.functionname)
|
|
* @param array $params params to append (name => value pairs)
|
|
* @param string $text a descriptive text for the link
|
|
*/
|
|
public function add_link($_menuaction, $_params, $_text) {
|
|
if(!$_menuaction || !$_params || !$_text) { return false; }
|
|
$this->links[] = (object)array( 'menuaction' => $_menuaction,
|
|
'params' => $_params,
|
|
'text' => $_text,
|
|
);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* sets the notification attachments
|
|
*
|
|
* @param array $attachments attachment array (like defined in $this->add_attachment
|
|
*/
|
|
public function set_attachments(array $_attachments) {
|
|
$this->attachments = array(); // clear array if set
|
|
foreach($_attachments as $attachment) {
|
|
if(is_array($attachment)) {
|
|
$this->add_attachment( $attachment['string'],
|
|
$attachment['filename'],
|
|
$attachment['encoding'],
|
|
$attachment['type']
|
|
);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* adds a notification attachment
|
|
* This method can be used to attach ascii or binary data,
|
|
* such as a BLOB record from a database.
|
|
*
|
|
* @param string $string Attachment data.
|
|
* @param string $filename Name of the attachment.
|
|
* @param string $encoding File encoding (see $Encoding).
|
|
* @param string $type File extension (MIME) type.
|
|
*/
|
|
public function add_attachment($_string, $_filename, $_encoding = "base64", $_type = "application/octet-stream") {
|
|
if(!$_string || !$_filename) { return false; }
|
|
$this->attachments[] = (object)array( 'string' => $_string,
|
|
'filename' => $_filename,
|
|
'encoding' => $_encoding,
|
|
'type' => $_type,
|
|
);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* sends notification
|
|
*/
|
|
public function send() {
|
|
if (empty($this->receivers) || (empty($this->message_plain) && empty($this->message_html))) {
|
|
throw new Exception('Error: Could not send notification. No receiver or no message where supplied');
|
|
}
|
|
if(!$messages = $this->create_messages($this->message_plain, $this->message_html, $this->links)) {
|
|
throw new Exception('Error: Could not send notification. Generating the messages failed');
|
|
}
|
|
foreach ($this->receivers as $receiver) {
|
|
$user_notified = false;
|
|
$backend_errors = array();
|
|
try {
|
|
// system or non-system user
|
|
if($receiver->account_id && is_numeric($receiver->account_id)) {
|
|
// system user
|
|
$receiver->handle = $receiver->account_lid;
|
|
// check if the receiver has rights to run the notifcation app
|
|
$ids = $GLOBALS['egw']->accounts->memberships($receiver->account_id,true);
|
|
$ids[] = $receiver->account_id;
|
|
if ($GLOBALS['egw']->acl->get_specific_rights_for_account($ids,'run','notifications')) {
|
|
// read the users notification chain
|
|
$prefs = new preferences($receiver->account_id);
|
|
$preferences = $prefs->read();
|
|
$preferences = (object)$preferences[self::_appname];
|
|
if($preferences->notification_chain) {
|
|
$notification_chain = $this->notification_chains[$preferences->notification_chain];
|
|
} else {
|
|
$notification_chain = $this->notification_chains[self::_fallback]; // fallback: no prefs
|
|
}
|
|
} else {
|
|
$notification_chain = $this->notification_chains[self::_fallback]; // fallback: no rights to app
|
|
}
|
|
} else {
|
|
// non-system user
|
|
$receiver->handle = $receiver->account_email;
|
|
$notification_chain = $this->notification_chains[self::_fallback]; // fallback: non-system user
|
|
}
|
|
|
|
if($notification_chain === false) {
|
|
continue; //user disabled notifications
|
|
}
|
|
|
|
foreach($notification_chain as $notification_backend => $action) {
|
|
try {
|
|
$notification_backend = 'notification_'.$notification_backend;
|
|
if(!file_exists(EGW_INCLUDE_ROOT. SEP. self::_appname. SEP. 'inc'. SEP. 'class.'. $notification_backend. '.inc.php')) {
|
|
throw new Exception('file for '.$notification_backend. ' does not exist');
|
|
}
|
|
require_once(EGW_INCLUDE_ROOT. SEP. self::_appname. SEP. 'inc'. SEP. 'class.'. $notification_backend. '.inc.php');
|
|
$obj = @new $notification_backend( $this->sender, $receiver, $this->config, $preferences );
|
|
if ( !is_a( $obj, iface_notification )) {
|
|
unset ( $obj );
|
|
throw new Exception($notification_backend. ' is no implementation of iface_notification');
|
|
}
|
|
|
|
$obj->send($this->subject, $messages, $this->attachments);
|
|
}
|
|
catch (Exception $exception) {
|
|
$backend_errors[] = $notification_backend.' failed: '.$exception->getMessage();
|
|
// try next backend
|
|
if($action == 'fail' || $action == 'continue') {
|
|
continue;
|
|
}
|
|
// all backends failed - give error message
|
|
if(!$user_notified) {
|
|
error_log('Error: notification of receiver '.$receiver->handle.' failed for the following reasons:');
|
|
foreach($backend_errors as $id=>$backend_error) {
|
|
error_log($backend_error);
|
|
}
|
|
}
|
|
break; // stop running through chain
|
|
}
|
|
// backend sucseeded
|
|
$user_notified = true;
|
|
if($action == 'stop' || $action == 'fail') { break; } // stop running through chain
|
|
}
|
|
}
|
|
catch (Exception $exception_user) {
|
|
error_log('Error: notification of receiver '.$receiver->handle.' failed: '.$exception_user->getMessage());
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* gets message
|
|
*
|
|
* @return string
|
|
*/
|
|
public function get_message() {
|
|
return $this->message;
|
|
}
|
|
|
|
/**
|
|
* gets receivers
|
|
*
|
|
* @return array of receiver objects
|
|
*/
|
|
public function get_receivers() {
|
|
return $this->receivers;
|
|
}
|
|
|
|
/**
|
|
* this function creates an array with the message as plaintext and html
|
|
* including given links for internal usage or external mailers
|
|
*
|
|
* @param string $message_plain
|
|
* @param string $message_html
|
|
* @param array $links
|
|
* @return array $messages
|
|
*/
|
|
private function create_messages($_message_plain = '', $_message_html = '', $_links = false) {
|
|
if(empty($_message_plain) && empty($_message_html)) { return false; } // no message set
|
|
$messages = array();
|
|
$messages['plain'] = array();
|
|
$messages['html'] = array();
|
|
|
|
// create the messages
|
|
if(!empty($_message_plain)) {
|
|
$messages['plain']['text'] = $_message_plain;
|
|
} else {
|
|
$messages['plain']['text'] = strip_tags($_message_html);
|
|
}
|
|
|
|
if(!empty($_message_html)) {
|
|
$messages['html']['text'] = $_message_html;
|
|
} else {
|
|
$messages['html']['text'] = nl2br($_message_plain);
|
|
}
|
|
|
|
// create the links
|
|
if(is_array($_links)) {
|
|
foreach($_links as $link) {
|
|
$params = '';
|
|
foreach($link->params as $param => $value) {
|
|
$params.='&'.$param.'='.$value;
|
|
}
|
|
$url = $GLOBALS['egw_info']['server']['webserver_url'].'/index.php?menuaction='.$link->menuaction.$params;
|
|
$menuaction_arr = explode('.',$link->menuaction);
|
|
$application = $menuaction_arr[0];
|
|
$image = $application ? $this->html->image($application,'navbar',$link->text,'align="middle"').' ' : '';
|
|
$messages['plain']['link_internal'] .= "\n".$url;
|
|
$messages['plain']['link_external'] .= "\n".$url.'&no_popup=1';
|
|
$messages['html']['link_internal'] .= '<br /><a href="'.$url.'" target="_blank">'.$image.$link->text.'</a>';
|
|
$messages['html']['link_external'] .= '<br /><a href="'.$url.'&no_popup=1" target="_blank">'.$link->text.'</a>';
|
|
$messages['html']['link_jspopup'] .= '<br /><div onclick="'.$this->popup($url).'">'.$image.$link->text.'</div>';
|
|
}
|
|
}
|
|
|
|
// create additional formatted info for backends which do not use
|
|
// subject or sender as plain info
|
|
if(is_object($this->sender)) {
|
|
$sender = $this->sender->account_fullname ? $this->sender->account_fullname : $this->sender_account_email;
|
|
$messages['plain']['info_sender'] = lang('Message from').': '.$sender."\n";
|
|
$messages['html']['info_sender'] = lang('Message from').': '.$sender.'<br />';
|
|
}
|
|
if(!empty($this->subject)) {
|
|
$messages['plain']['info_subject'] = $this->subject."\n";
|
|
$messages['html']['info_subject'] = $this->html->bold($this->subject).'<br />';
|
|
}
|
|
|
|
return $messages;
|
|
}
|
|
|
|
/**
|
|
* 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 $height=400 height of the window
|
|
* @return string javascript (using single quotes)
|
|
*/
|
|
private function popup($link,$target='_blank',$width=750,$height=410)
|
|
{
|
|
return 'egw_openWindowCentered2('.($link == 'this.href' ? $link : "'".$link."'").','.
|
|
($target == 'this.target' ? $target : "'".$target."'").",$width,$height,'yes')";
|
|
}
|
|
|
|
/**
|
|
* returns specified part from a given mailaddress
|
|
*
|
|
* @param string $_address
|
|
* @param string $_part
|
|
* @return string chosen part of the address
|
|
*/
|
|
private function get_addresspart($_address, $_part='email') {
|
|
if(strpos($_address,'<')) { // _address contains a fullname part
|
|
ereg('^(.*)[:space:]{0,1}<(.*)>',$_address,&$parts);
|
|
$fullname = trim(trim($parts[1]),'\"');
|
|
$email = $parts[2];
|
|
} else {
|
|
$fullname = false;
|
|
$email = $_address;
|
|
}
|
|
switch($_part) {
|
|
case 'fullname':
|
|
return $fullname;
|
|
break;
|
|
case 'email':
|
|
default:
|
|
return $email;
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} |