<?php
/**
 * SMTP Library
 *
 * Copyright (c) 2011 Mesut Erdemir (http://mesuterdemir.com)
 * All rights reserved.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL.
 */

/**
 * @package SoruSor SMTP Library
 * @author Mesut Erdemir <erdemirmesut@gmail.com>
 * @copyright 2011 Mesut Erdemir (http://mesuterdemir.com)
 * @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
 * @version 1.0
 * @link http://github.com/Mesut/SoruSor
 */
 
 /*
 *
 *	=== KULLANIMI ===
 *
 *	$smtp = new Smtp("smtp sunucu adı", "smtp port(25/587)", "smtp kullanıcı adı(genelde mail adresi)", "smtp şifre(mail adresi şifresi)");
 *
 *	if($smtp->sendMail("gönderilecek adres", "mail konusu", "mail içeriği")) {
 *		echo "gönderildi";
 *	}
 *	else echo "gonderim basarisiz!";
 *
 */
class Smtp {

	var $smtpServer;
	var $smtpPort = "25";
	var $smtpUsername;
	var $smtpPassword;
	var $timeOut = "60";
	var $clientIP = "127.0.0.1";
	var $newLine = "\r\n";

	/**
	 * Constructor
	 *
	 * @param	string	 $smtpServer
	 * @param	string	 $smtpPort
	 * @param	string	 $smtpUsername
	 * @param	string	 $smtpPassword
	 * @return void
	 */
	public function Smtp($smtpServer, $smtpPort, $smtpUsername, $smtpPassword) {
		$this->smtpServer = $smtpServer;
		$this->smtpPort = $smtpPort;
		$this->smtpUsername = $smtpUsername;
		$this->smtpPassword = $smtpPassword;
	}


	/**
	 * Send Mail Method
	 *
	 * @param	string	 $mailTo
	 * @param	string	 $mailSubject
	 * @param	string	 $mailMessage
	 * @return mixed
	 */
	public function sendMail($mailTo, $mailSubject, $mailMessage) {
		$smtpConnection = fsockopen($this->smtpServer, $this->smtpPort, $errno, $errstr, $this->timeOut);
		$smtpResponse = fgets($smtpConnection, 4096);
		// Check SMTP Connection
		if(empty($smtpConnection)) {
			$output = "Bağlantı sağlanamadı: $smtpResponse";
			return $output;
		}

		// Connection to SMTP Server
		fputs($smtpConnection, "HELO {$this->clientIP}" . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);
		// AUTH Login
		fputs($smtpConnection, "AUTH LOGIN" . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);

		// Send Username for Authentication
		fputs($smtpConnection, base64_encode($this->smtpUsername) . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);

		// Send Password for Authentication
		fputs($smtpConnection, base64_encode($this->smtpPassword) . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);

		// Email From
		fputs($smtpConnection, "MAIL FROM: <{$this->smtpUsername}>" . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);

		// Email To
		fputs($smtpConnection, "RCPT TO: <$mailTo>" . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);

		// Email Body
		fputs($smtpConnection, "DATA" . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);

		// Construct Headers
		$headers = "MIME-Version: 1.0" . $this->newLine;
		$headers .= "Content-type: text/html; charset=utf-8" . $this->newLine;
		$headers .= "Content-Transfer-Encoding: base64" . $this->newLine;
		$headers .= "To: <$mailTo>" . $this->newLine;
		$headers .= "From: <{$this->smtpUsername}>" . $this->newLine;

		// Send Message via SMTP Connection
		$mailMessage = base64_encode($mailMessage);
		fputs($smtpConnection, "Subject: $mailSubject\r\n$headers\r\n\r\n$mailMessage\r\n.\r\n");
		$smtpResponse = fgets($smtpConnection, 4096);

		// Close SMTP Connection
		fputs($smtpConnection, "QUIT" . $this->newLine);
		$smtpResponse = fgets($smtpConnection, 4096);
		$quitCode = substr($smtpResponse, 0, 3);
		fclose($smtpConnection);

		// If return code is 221, OK
		if ($quitCode == 221) {
			return true;
		}
		else return false;
	}

}
?>