sms notifications from aleksander.adamowski(at)olo.org.pl

notifications/inc/class.notifications.inc.php

@@ -40,7 +40,7 @@ final class notifications {
 	 * registered backends
 	 * @var array
 	 */
-	private $backends = array('popup', 'winpopup', 'email');
+	private $backends = array('popup', 'winpopup', 'email', 'sms');
 	
 	/** 
 	 * pre-defined notificaton chains
@@ -60,14 +60,14 @@ final class notifications {
 		'all' 					=> false, // will be created by $this->get_available_chains
  		'popup_only' 			=> array('popup' => 'stop'),
  		'popup_or_email' 		=> array('popup' => 'fail', 'email' => 'stop'),
- 		//'popup_or_sms' 			=> array('popup' => 'fail', 'sms' => 'stop'),
+ 		'popup_or_sms' 			=> array('popup' => 'fail', 'sms' => 'stop'),
  		'popup_and_email' 		=> array('popup' => 'continue', 'email' => 'stop'),
  		'popup_and_winpopup'	=> array('popup' => 'continue', 'winpopup' => 'stop'),
 		'winpopup_only' 		=> array('winpopup' => 'stop'),
 		'winpopup_or_email'		=> array('winpopup' => 'fail', 'email' => 'stop'),
 		//'winpopup_or_sms'		=> array('winpopup' => 'fail', 'sms' => 'stop'),
 		'winpopup_and_email' 	=> array('winpopup' => 'continue', 'email' => 'stop'),
-		//'sms_only' 				=> array('sms' => 'stop'),
+		'sms_only' 				=> array('sms' => 'stop'),
 	);
 
 	/** 
@@ -80,14 +80,14 @@ final class notifications {
 		'all' 					=> 'all possible notification backends',
 		'popup_only' 			=> 'eGroupWare-Popup only',
 		'popup_or_email' 		=> 'eGroupWare-Popup first, if that fails notify me by E-Mail',
-		//'popup_or_sms' 			=> 'eGroupware-Popup first, if that fails notify me by SMS',
+		'popup_or_sms' 			=> 'eGroupware-Popup first, if that fails notify me by SMS',
 		'popup_and_email' 		=> 'eGroupWare-Popup and E-Mail',
 		'popup_and_winpopup'	=> 'eGroupWare-Popup and Windows-Popup',
 		'winpopup_only' 		=> 'Windows-Popup only',
 		'winpopup_or_email' 	=> 'Windows-Popup first, if that fails notify me by E-Mail',
 		//'winpopup_or_sms' 		=> 'Windows-Popup first, if that fails notify me by SMS',
 		'winpopup_and_email' 	=> 'Windows-Popup and E-Mail',
-		//'sms_only' 				=> 'SMS only',
+		'sms_only' 				=> 'SMS only',
 	);
 	
 	/**

notifications/inc/class.notifications_sms.inc.php

@@ -0,0 +1,186 @@
+<?php
+/**
+ * eGroupWare - Notifications
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package notifications
+ * @link http://www.egroupware.org
+ * @author Aleksander Adamowski <aleksander.adamowski@olo.org.pl>
+ * @version $Id$
+ */
+
+/**
+ * User notification via winpopup.
+ */
+class notifications_sms implements notifications_iface {
+
+	/**
+	 * Appname
+	 */
+	const _appname = 'notifications';
+	
+	/**
+	 * Login table in SQL database
+	 */
+	const _login_table = 'egw_access_log';
+	
+	/**
+	 * holds account object for user who sends the message
+	 *
+	 * @var object
+	 */
+	private $sender;
+	
+	/**
+	 * holds account object for user to notify
+	 *
+	 * @var object
+	 */
+	private $recipient;
+	
+	/**
+	 * holds config object (sitewide application config)
+	 *
+	 * @var object
+	 */
+	private $config;
+	
+	/**
+	 * holds preferences object of user to notify
+	 *
+	 * @var object
+	 */
+	private $preferences;
+	
+	/**
+	 * holds the sms sending command. the script should accept two arguments: mobile number and
+	 * SMS body in ASCII.
+	 *
+	 * @abstract 
+	 * Example: /usr/bin/sendsms
+	 * (sendsms is from smstools)
+	 *
+	 * @var string
+	 */
+	private $sendsms_command = '/usr/sbin/sendsms';
+	
+	/**
+	 * constructor of notification_sms
+	 *
+	 * @param object $_sender
+	 * @param object $_recipient
+	 * @param object $_config
+	 * @param object $_preferences
+	 */
+	public function __construct($_sender, $_recipient, $_config = null, $_preferences = null) {
+		if(!is_object($_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;
+	}
+	
+	/**
+	 * sends notification
+	 *
+	 * @param string $_subject
+	 * @param array $_messages
+	 * @param array $_attachments
+	 */
+	public function send(array $_messages, $_subject = false, $_links = false, $_attachments = false) {
+		if(!$this->sendsms_command) {
+			throw new Exception(	'SMS plugin not configured yet. Skipped sending notification message. '.
+									'Please check var "sms_command" in SMS backend '.
+									'('.EGW_INCLUDE_ROOT. SEP. self::_appname. SEP. 'inc'. SEP. 'class.notification_sms.inc.php).');
+		}
+		//error_log('_messages: '.var_export($_messages, TRUE)."\n");
+		$this->send_sms( $_subject.$_messages['plain']);
+		return true;
+	}
+
+	/**
+	 * Try to guess a locale supported by the server, with fallback to 'en_EN' and 'C'
+	 * borrowed from projectmanager/inc/class.ganttchart.inc.php
+	 *
+	 * @return string
+	 */
+	function guess_locale() {
+		$fullprefs = new preferences($this->recipient->account_id);
+		$fullpreferences = $fullprefs->read();
+		$lang = $fullpreferences['common']['lang'];
+		$country = $fullpreferences['common']['country'];
+
+		if (strlen($lang) == 2) { 
+			$country_from_lang = strtoupper($lang);
+		} else { 
+			list($lang,$country_from_lang) = explode('-',$lang);
+			$country_from_lang = strtoupper($country_from_lang);
+		}
+		$old_locale = setlocale(LC_CTYPE, '0');
+		if (setlocale(LC_CTYPE,$locale=$lang.'_'.$country)) return $old_locale;
+		if (setlocale(LC_CTYPE,$locale=$lang.'_'.$country_from_lang)) return $old_locale;
+		if (setlocale(LC_CTYPE,$locale=$lang)) return $old_locale;
+		if (setlocale(LC_CTYPE,$locale='en_EN')) return $old_locale;
+		return $old_locale;
+	}
+	
+	/**
+	 * sends the sms message via command line script specified above
+	 *
+	 * @param string $_message
+	 * @param array $_user_sessions
+	 */
+	private function send_sms( $_message) {
+		$account_id = $this->recipient->account_id;
+		// Theoretically one could send unicode text SMS by using UCS-2 encoding for the message.
+		// My modem, however, rejected UCS-2 encoded text so I convert to plain ASCII:
+		if (function_exists('iconv')) { 
+			$funcToUse = 'iconv';
+		} else if (function_exists('mb_convert_encoding')) { 
+			$funcToUse = 'mb_convert_encoding';
+		}
+		$old_locale = $this->guess_locale();
+		//error_log("New LC_CTYPE locale: ".setlocale(LC_CTYPE, '0'));
+		$source_charset = $GLOBALS['egw']->translation->charset();
+		if ($funcToUse == 'iconv') {
+			$converted_message = iconv($source_charset, 'ASCII//TRANSLIT', $_message);
+		} else if ($funcToUse == 'mb_convert_encoding') {
+			$converted_message = mb_convert_encoding($_message, 'ASCII', $source_charset);
+		}
+		setlocale(LC_CTYPE, $old_locale);
+		//error_log("Restored old LC_CTYPE locale: ".setlocale(LC_CTYPE, '0'));
+
+		$addressbook =& CreateObject('addressbook.bocontacts');
+		$contact = $addressbook->read('account:'.$account_id);
+		$cell = $contact['tel_cell'];
+		// remove all characters that are non-digit and not a plus sign:
+		$cell = preg_replace('/[^0-9]/', '', $cell);
+		if (!preg_match('/48[^0][0-9]{8}/', $cell)) {
+			error_log('Invalid cell number: '.$cell);
+			throw new Exception("Failed sending notification message via sms. Invalid mobile number: ".$cell);
+		}		
+
+		$command = $this->sendsms_command;
+		// just in case to be sure of safeness:
+		$escaped_cell = escapeshellarg($cell);
+		$command .= ' '.$cell;
+
+		// The first four rows of alarm message contain redundant text
+		// that's unneeded in SMS notifications, and space is precious,
+		// so we remove them:
+		// Or maybe not:
+		//$converted_message = preg_replace("/^([^\n]*\r?\n){4}/", "", $converted_message);
+		// SMS length limit of max. 3 SMS concatenated:
+		$converted_message = substr($converted_message, 0, 160*3);
+		// escape any dangerous content from the message:
+		$escaped_message = escapeshellarg($converted_message);
+		$command .= ' '.$escaped_message;
+		//error_log('SMS command: '.$command."\n");
+		exec($command,$output,$returncode);
+		if($returncode != 0) {
+			throw new Exception("Failed sending notification message via sms. Error while executing the specified command.");
+		}
+	}
+
+}

notifications/templates/default/config.tpl

@@ -34,7 +34,6 @@
      </select>
     </td>
    </tr>
-   <!-- future SMS backend - currently disabled
    <tr class="th">
     <td colspan="2">&nbsp;<b>{lang_SMS_backend}</b></td>
    </tr>
@@ -57,7 +56,6 @@
      </select>
     </td>
    </tr>
-   -->
    <!-- END body -->
 <!-- BEGIN footer -->
   <tr valign="bottom" style="height: 30px;">