#!/usr/bin/php -q
<?php
/**
 * Look for voicemail user in voicemail.comf and return its email address to the specified diaplan VARIABLE
 * It also returns a message to the ${noopMessage} VARIABLE
 * 
 * Possible results to the specified diaplan VARIABLE are: 
 *        variable = ERROR and noopMessage = VMUser NOT FOUND
 *        variable = ERROR and noopMessage = NO EMAIL
 *        variable = email@address
 *
 * @param int $VMUser -> The voicemail user
 * @param string $DPReturnVarName -> The name of the diaplan VARIABLE to return the email to
 *
 * EXAMPLE
 *
 * exten => 1921,n,AGI(getVMUserData|1234|vmuserEmail)
 * exten => 1921,n,NoOp(Resulting message for AGI ${noopMessage})
 * exten => 1921,n...
 *
 * 
 */
 


/**
 * Parse voicemail.conf file looking for a user
 * Then return its email address
 *
 * @param int $VMUser
 * @return string
 */
function lookForVMEmail($VMUser, $voicemailconf){
	$dataFound = array();
	$status = "VMUser NOT FOUND";
	$nomoreloop = false;
	
	$fileArray = file($voicemailconf);
	foreach ($fileArray as $line){
		//leave commented lines out
		if( strpos(trim($line), ';') !== 0 && !$nomoreloop ){
						$findme   = '=>';
						$pos = strpos($line, $findme);
						// Note our use of ===.  Simply == would not work as expected
						if ($pos !== false) {
							/*
							1104 => 7906,Jane Doe,,tz=eastern|attach=yes|saycid=no|review=yes|operator=yes|envelope=no|sayduration=no|
							1234 => 1234,Some User,email@address.com,pager@address.com,saycid=yes|dialout=fromvm|callback=fromvm|review=yes|operator=yes
							*/
							$elements = explode('=>', $line);
							if(trim($elements[0]) == trim($VMUser)){
								$nomoreloop = true;
								$status = "NO EMAIL";
								$elements2 = explode(',',$elements[1]);
								
								if(trim($elements2[2]) != ''){
									// DATA FOUND
									$status = trim($elements2[2]);
								}
							}
						}
		}
	}
	return $status;
}



/* Parameters */
$VMUser = $argv[1];
$DPReturnVarName = $argv[2];
$foundEmail = '';
$voicemailconf = "/etc/asterisk/voicemail.conf";

/* Parse voicemail.conf and find data */
if(trim($DPReturnVarName) != '' && trim($VMUser) != ''){
	//both parametes ok
	//lets look for the user
	
	$foundEmail = lookForVMEmail($VMUser, $voicemailconf);

	switch ($foundEmail){
		
		case 'VMUser NOT FOUND':
			echo "\SET VARIABLE noopMessage Warning-Voicemail_User_". $VMUser ."_NOT_FOUND_in_voicemail.conf \"*#\"\n";
			echo "\SET VARIABLE $DPReturnVarName ERROR \"*#\"\n";
		break;
		
		case 'NO EMAIL':
			echo "\SET VARIABLE noopMessage Warning-NO_EMAIL_ADDRESS_FOUND_for_Voicemail_User_". $VMUser ."_in_voicemail.conf \"*#\"\n";
			echo "\SET VARIABLE $DPReturnVarName ERROR \"*#\"\n";
		break;
		
		default:
			/* Return required data to dialplan */
			echo "\SET VARIABLE noopMessage Voicemail_User_". $VMUser ."_FOUND_in_voicemail.conf \"*#\"\n";
			echo "\SET VARIABLE $DPReturnVarName " . $foundEmail . " \"*#\"\n";
		break;
	} //end Switch
	 
	
} else {
	//missing parameter
	echo "\SET VARIABLE noopMessage Error-Missing_parameters-param1_is_".$VMUser."_param2_is_".$DPReturnVarName." \"*#\"\n";
}

?>