<?php
/**
 * PDNS-Admin
 * Copyright (c) 2006-2011 Roger Libiez http://www.iguanadons.net
 *
 * Based on Quicksilver Forums
 * Copyright (c) 2005-2011 The Quicksilver Forums Development Team
 *  http://code.google.com/p/quicksilverforums/
 * 
 * Based on MercuryBoard
 * Copyright (c) 2001-2005 The Mercury Development Team
 *  http://www.mercuryboard.com/
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 **/

if (!defined('PDNSADMIN')) {
	header('HTTP/1.0 403 Forbidden');
	die;
}

/**
 * A simple class that makes good use of the mail() function.
 *
 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
 * @since RC1
 **/
class mailer
{
	var $sender;    // Name to be displayed in From field. @access private @var string
	var $outgoing;  // Outgoing email address @access private @var string
	var $incoming;  // Incoming email address @access private @var string
	var $message;   // Email body @access private @var string
	var $subject;   // Email Subject @access private @var string
	var $server;    // Mail Server @access private @var string
	var $list;      // Formatted Bcc list @access private @var string
	var $recipient; // Recipient for single send mode @access private @var string
	var $bcc;       // Blind Carbon Copy recipients @access private @var array
	var $headers;   // Headers to be used for email @access private @var array
	var $html;      // Determines whether message will be sent in HTML format. @access private @var boolean

	/**
	 * This initializes instance variables / objects.
	 *
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return void
	 **/
	function mailer($in, $out, $sender, $html)
	{
		$this->outgoing = $out;
		$this->incoming = $in;
		$this->sender   = $sender;
		$this->html     = false;

		$this->server    = 'localhost';
		$this->recipient = '';
		$this->message   = '';
		$this->subject   = '';
		$this->list      = '';

		$this->bcc     = array();
		$this->headers = array();
	}

	/**
	 * Adds a new recipient to Bcc.
	 *
	 * @param string $email User's email
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return void
	 **/
	function setBcc($email)
	{
		$this->bcc[] = $email;
	}

	/**
	 * Builds the Bcc list and assigns the corresponding header.
	 *
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return boolean true if bcc recipients exist
	 **/
	function doBcc()
	{
		if (!$this->bcc) {
			return false;
		}

		$this->list .= implode(', ', $this->bcc);
		$this->setHeader('Bcc: ' . $this->list);

		return true;
	}

	/**
	 * Sets a recipient for single send mode.
	 *
	 * @param string $recipient Email address
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return void
	 **/
	function setRecipient($recipient)
	{
		$this->recipient = $recipient;
	}

	/**
	 * Sets the email's subject
	 *
	 * @param string $subject Email Subject
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return void
	 **/
	function setSubject($subject)
	{
		// Basic security check
		$subject = str_replace(array("\n", "\r"), array(' ', ' '), $subject);
		$this->subject = $subject;
	}

	/**
	 * Sets the email's message body
	 *
	 * @param string $subject Email Subject
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return void
	 **/
	function setMessage($message)
	{
		$this->message = $message;
	}

	/**
	 * Adds a key / value to the current list of headers.
	 *
	 * @param string $header New header
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return void
	 **/
	function setHeader($header)
	{
		// Basic security check
		$header = str_replace(array("\n", "\r"), array(' ', ' '), $header);
		$this->headers[] = $header;
	}

	/**
	 * Changes the SMTP mail server
	 *
	 * @param string $server Mail Server
	 * @author Jason Warner <jason@mercuryboard.com>
	 * @since RC1
	 * @return void
	 **/
	function setServer($server)
	{
		$this->server = $server;
	}

	/**
	 * Build the email message and send it off!
	 *
	 * @author Daniel Wilhelm II Murdoch <wilhelm@cyberxtreme.org>
	 * @since RC1
	 * @return boolean true on success
	 **/
	function doSend()
	{
		if (!strlen($this->subject)) {
			return false;
		}

		$this->setHeader('From: ' . $this->sender . ' <' . $this->outgoing . '>');
		$this->setHeader('Reply-To: ' . $this->incoming);

		if (!strlen($this->recipient)) {
			$this->doBcc();
			$to = $this->sender . ' <' . $this->outgoing . '>';
		} else {
			$to = $this->recipient;
		}

		if ($this->server) {
			@ini_set('SMTP', $this->server);
		}

		if (mail($to, $this->subject, $this->message, implode("\n", $this->headers))) {
			return true;
		} else {
			return false;
		}
	}
}
?>