<?php

namespace gp\tool{

	defined('is_running') or die('Not an entry point...');

	includeFile('thirdparty/PHPMailer/PHPMailerAutoload.php');


	/**
	 * An extension of phpmailer
	 *
	 * @since 1.7
	 *
	 */
	class Emailer extends \PHPMailer{

		function __construct(){
			global $dataDir,$config;

			parent::__construct();

			$this->Reset();
			$this->PluginDir = $dataDir.'/include/thirdparty/PHPMailer/';
			$this->CharSet = 'utf-8';
			$this->ContentType = 'text/html';

			$mail_method = $this->Mail_Method();
			switch($mail_method){

				//smtp & smtpauth
				case 'smtpauth':
					$this->SMTPAuth = true;
					$this->Username = \gp\tool::ConfigValue('smtp_user','');
					$this->Password = \gp\tool::ConfigValue('smtp_pass','');
				case 'smtp';
					$this->IsSMTP();
					$this->Host = \gp\tool::ConfigValue('smtp_hosts','');
				break;

				//sendmail
				case 'sendmail':
					$this->IsSendmail();
					$this->Sendmail = $this->Sendmail_Path();
				break;

				//mail
				default:
					$this->IsMail();
					$this->Mailer = 'mail';
				break;
			}


		}

		// Empty out the values that may be set
		function Reset(){
			$this->ClearAddresses();
			$this->ClearAllRecipients();
			$this->ClearAttachments();
			$this->ClearBCCs();
			$this->ClearCCs();
			$this->ClearCustomHeaders();
			$this->ClearReplyTos();

			$this->From = $this->From_Address();
			$this->FromName = $this->From_Name();
		}


		/**
		 *
		 * @param string|array $to Array or comma-separated list of email addresses to send message.
		 * @param string $subject Email subject
		 * @param string $message Message contents
		 * @return bool Whether the email contents were sent successfully.
		 */
		function SendEmail($to,$subject,$message){
		//function SendEmail($to,$subject,$message,$headers=array()){
			global $config;

			// Set destination addresses
			foreach( (array)$to as $recipient){
				$recipient = $this->SplitNameAddress($recipient);
				$this->AddAddress( $recipient['address'], $recipient['name'] );
			}

			// Set mail's subject and body
			$this->Subject = $subject;
			$this->Body    = $message;


			// Send!
			$result = @$this->Send();

			$this->Reset();

			return $result;
		}


		/**
		 * Clean and prepare variables before calling \phpMailer::Send();
		 *
		 */
		function Send(){

			$this->CleanAddresses( 'to' );
			$this->CleanAddresses( 'cc' );
			$this->CleanAddresses( 'bcc' );
			$this->CleanAddresses( 'ReplyTo' );
			$this->Subject = $this->CleanSubject( $this->Subject );
			$this->Body = $this->CleanText( $this->Body );
			$this->AltBody = $this->CleanText( $this->AltBody );

			return parent::Send();
		}


	  /**
	   * Overrides the default from address for the current email. Similar to phpmailer's AddAddress() method
	   * @param string $address
	   * @param string $name
	   * @return void
	   */
		public function SetFrom($address, $name = '', $auto = 1) {
			$this->From = $this->CleanLine( $address );
			$this->FromName = $this->CleanLine( $name );
		}


		function SplitNameAddress($address){

			$address_name = '';
			if ( strpos($address, '<' ) !== false ) {
				$address_name = substr( $address, 0, strpos( $address, '<' ) - 1 );
				$address_name = str_replace( '"', '', $address_name );
				$address_name = trim( $address_name );

				$address = substr( $address, strpos( $address, '<' ) + 1 );
				$address = str_replace( '>', '', $address );
				$address = trim( $address );
			} else {
				$address = trim( $address );
			}

			return array('name'=>$address_name,'address'=>$address);
		}


		function From_Address(){
			global $config;

			if( !empty($config['from_address']) ){
				return $config['from_address'];
			}

			$from = ini_get('sendmail_from');
			if( !empty($sendmail_from) ){
				return $from;
			}

			$server = \gp\tool::ServerName(true);
			if( $server === false ){
				$server = 'localhost';
			}

			$pos = strpos($server,':');
			if( $pos > 0 ){
				$port = substr($server,$pos+1);
				if( is_numeric($port) ){
					$server = substr($server,0,$pos);
				}
			}

			return 'AutomatedSender@'.$server;
		}

		function From_Name(){
			return \gp\tool::ConfigValue('from_name','Automated Sender');
		}

		function Mail_Method(){
			return \gp\tool::ConfigValue('mail_method','mail');
		}

		function Sendmail_Path(){

			//get value set in php.ini, remove arguments
			$default = ini_get('sendmail_path');
			$pos = strpos($default,' ');
			if( $pos !== false ){
				$default = substr($default,0,$pos);
			}
			if( empty($default) ){
				$default = '/usr/sbin/sendmail';
			}
			return \gp\tool::ConfigValue('sendmail_path',$default);
		}


		/**
		 * Clean all addresses by removing newlines
		 *
		 */
		function CleanAddresses($array){

			$temp =& $this->$array;
			foreach($temp as $i => $name_addr){
				$temp[$i][0] = $this->CleanLine( $temp[$i][0] );
				$temp[$i][1] = $this->CleanLine( $temp[$i][1] );
			}
		}

		/**
		 * Cleans multi-line inputs.
		 * From Joomla
		 * @param   string  $value	Multi-line string to be cleaned.
		 * @return  string  Cleaned multi-line string.
		 */
		function CleanText($value){
			return trim(preg_replace('/(%0A|%0D|\n+|\r+)(content-type:|to:|cc:|bcc:)/i', '', $value));
		}


		/**
		 * Cleans single line inputs.
		 * From Joomla
		 * @param   string  $value  String to be cleaned.
		 * @return  string  Cleaned string.
		 */
		function CleanLine($value){
			return trim(preg_replace('/(%0A|%0D|\n+|\r+)/i', '', $value));
		}


		/**
		 * Cleans any injected headers from the subject string.
		 * From Joomla
		 * @param   string  $subject  email subject string.
		 * @return  string  Cleaned email subject string.
		 */
		function CleanSubject($subject){
			return preg_replace("/((From:|To:|Cc:|Bcc:|Content-type:) ([\S]+))/", "", $subject);
		}
	}
}

namespace{
	class gp_phpmailer extends \gp\tool\Emailer{}

	global $gp_mailer;
	if( !is_object( $gp_mailer ) || !is_a( $gp_mailer, 'gp_phpmailer' ) ){
		$gp_mailer = new gp_phpmailer();
	}
}