<?php
////////////////////////////////////////////////////
// PHPMailer - PHP email class
//
// Class for sending email using either
// sendmail, PHP mail(), or SMTP.  Methods are
// based upon the standard AspEmail(tm) classes.
//
// Copyright (C) 2001 - 2003  Brent R. Matzelle
//
// License: LGPL, see LICENSE
////////////////////////////////////////////////////

/**
 * PHPMailer - PHP email transport class
 * @package PHPMailer
 * @author Brent R. Matzelle
 * @copyright 2001 - 2003 Brent R. Matzelle
 */
class PHPMailer
{
    /////////////////////////////////////////////////
    // PUBLIC VARIABLES
    /////////////////////////////////////////////////

    /**
     * Email priority (1 = High, 3 = Normal, 5 = low).
     * @var int
     */
    public $priority = 3;

    /**
     * Sets the CharSet of the message.
     * @var string
     */
    public $charSet = "iso-8859-1";

    /**
     * Sets the Content-type of the message.
     * @var string
     */
    public $contentType = "text/plain";

    /**
     * Sets the Encoding of the message. Options for this are "8bit",
     * "7bit", "binary", "base64", and "quoted-printable".
     * @var string
     */
    public $encoding = "8bit";

    /**
     * Holds the most recent mailer error message.
     * @var string
     */
    public $errorInfo = "";

    /**
     * Sets the From email address for the message.
     * @var string
     */
    public $from = "root@localhost";

    /**
     * Sets the From name of the message.
     * @var string
     */
    public $fromName = "Root User";

    /**
     * Sets the Sender email (Return-Path) of the message.  If not empty,
     * will be sent via -f to sendmail or as 'MAIL FROM' in smtp mode.
     * @var string
     */
    public $sender = "";

    /**
     * Sets the Subject of the message.
     * @var string
     */
    public $subject = "";

    /**
     * Sets the Body of the message.  This can be either an HTML or text body.
     * If HTML then run IsHTML(true).
     * @var string
     */
    public $body = "";

    /**
     * Sets the text-only body of the message.  This automatically sets the
     * email to multipart/alternative.  This body can be read by mail
     * clients that do not have HTML email capability such as mutt. Clients
     * that can read HTML will view the normal Body.
     * @var string
     */
    public $altBody = "";

    /**
     * Sets word wrapping on the body of the message to a given number of 
     * characters.
     * @var int
     */
    public $wordWrap = 0;

    /**
     * Method to send mail: ("mail", "sendmail", or "smtp").
     * @var string
     */
    public $mailer = "mail";

    /**
     * Sets the path of the sendmail program.
     * @var string
     */
    public $sendmail = "/usr/sbin/sendmail";

    /**
     * Path to PHPMailer plugins.  This is now only useful if the SMTP class 
     * is in a different directory than the PHP include path.  
     * @var string
     */
    public $pluginDir = "";

    /**
     *  Holds PHPMailer version.
     *  @var string
     */
    public $version = "1.71";

    /**
     * Sets the email address that a reading confirmation will be sent.
     * @var string
     */
    public $confirmReadingTo = "";

    /**
     *  Sets the hostname to use in Message-Id and Received headers
     *  and as default HELO string. If empty, the value returned
     *  by SERVER_NAME is used or 'localhost.localdomain'.
     *  @var string
     */
    public $hostname = "";

    /////////////////////////////////////////////////
    // SMTP VARIABLES
    /////////////////////////////////////////////////

    /**
     *  Sets the SMTP hosts.  All hosts must be separated by a
     *  semicolon.  You can also specify a different port
     *  for each host by using this format: [hostname:port]
     *  (e.g. "smtp1.example.com:25;smtp2.example.com").
     *  Hosts will be tried in order.
     *  @var string
     */
    public $host = "localhost";

    /**
     *  Sets the default SMTP server port.
     *  @var int
     */
    public $port = 25;

    /**
     *  Sets the SMTP HELO of the message (Default is $hostname).
     *  @var string
     */
    public $helo = "";

    /**
     *  Sets SMTP authentication. Utilizes the Username and Password variables.
     *  @var bool
     */
    public $SMTPAuth = false;

    /**
     *  Sets SMTP username.
     *  @var string
     */
    public $username = "";

    /**
     *  Sets SMTP password.
     *  @var string
     */
    public $password = "";

    /**
     *  Sets the SMTP server timeout in seconds. This function will not 
     *  work with the win32 version.
     *  @var int
     */
    public $timeout = 10;

    /**
     *  Sets SMTP class debugging on or off.
     *  @var bool
     */
    public $SMTPDebug = false;

    /**
     * Prevents the SMTP connection from being closed after each mail 
     * sending.  If this is set to true then to close the connection 
     * requires an explicit call to SmtpClose(). 
     * @var bool
     */
    public $SMTPKeepAlive = false;

    /**#@+
     * @access private
     */
    public $smtp = NULL;
    public $to = array(
        );

    public $cc = array(
        );

    public $bcc = array(
        );

    public $replyTo = array(
        );

    public $attachment = array(
        );

    public $customHeader = array(
        );

    public $message_type = "";
    public $boundary = array(
        );

    public $language = array(
        );

    public $error_count = 0;
    public $LE = "\n";
    /**#@-*/

    /////////////////////////////////////////////////
    // VARIABLE METHODS
    /////////////////////////////////////////////////

    /**
     * Sets message type to HTML.  
     * @param bool $bool
     * @return void
     */
    public function isHTML($bool)
    {
        if ($bool == true)
            $this->contentType = "text/html";
        else
            $this->contentType = "text/plain";
    }

    /**
     * Sets Mailer to send message using SMTP.
     * @return void
     */
    public function isSMTP()
    {
        $this->mailer = "smtp";
    }

    /**
     * Sets Mailer to send message using PHP mail() function.
     * @return void
     */
    public function isMail()
    {
        $this->mailer = "mail";
    }

    /**
     * Sets Mailer to send message using the $sendmail program.
     * @return void
     */
    public function isSendmail()
    {
        $this->mailer = "sendmail";
    }

    /**
     * Sets Mailer to send message using the qmail MTA. 
     * @return void
     */
    public function isQmail()
    {
        $this->sendmail = "/var/qmail/bin/sendmail";
        $this->mailer = "sendmail";
    }

    /////////////////////////////////////////////////
    // RECIPIENT METHODS
    /////////////////////////////////////////////////

    /**
     * Adds a "To" address.  
     * @param string $address
     * @param string $name
     * @return void
     */
    public function addAddress($address, $name = "")
    {
        $cur = count($this->to);
        $this->to[$cur][0] = trim($address);
        $this->to[$cur][1] = $name;
    }

    /**
     * Adds a "Cc" address. Note: this function works
     * with the SMTP mailer on win32, not with the "mail"
     * mailer.  
     * @param string $address
     * @param string $name
     * @return void
    */
    public function addCC($address, $name = "")
    {
        $cur = count($this->cc);
        $this->cc[$cur][0] = trim($address);
        $this->cc[$cur][1] = $name;
    }

    /**
     * Adds a "Bcc" address. Note: this function works
     * with the SMTP mailer on win32, not with the "mail"
     * mailer.  
     * @param string $address
     * @param string $name
     * @return void
     */
    public function addBCC($address, $name = "")
    {
        $cur = count($this->bcc);
        $this->bcc[$cur][0] = trim($address);
        $this->bcc[$cur][1] = $name;
    }

    /**
     * Adds a "Reply-to" address.  
     * @param string $address
     * @param string $name
     * @return void
     */
    public function addReplyTo($address, $name = "")
    {
        $cur = count($this->replyTo);
        $this->replyTo[$cur][0] = trim($address);
        $this->replyTo[$cur][1] = $name;
    }

    /////////////////////////////////////////////////
    // MAIL SENDING METHODS
    /////////////////////////////////////////////////

    /**
     * Creates message and assigns Mailer. If the message is
     * not sent successfully then it returns false.  Use the ErrorInfo
     * variable to view description of the error.  
     * @return bool
     */
    public function send()
    {
        $header = "";
        $body = "";

        if ((count($this->to) + count($this->cc) + count($this->bcc)) < 1)
        {
            $this->setError($this->lang("provide_address"));
            return false;
        }

        // Set whether the message is multipart/alternative
        if (!empty($this->altBody))
            $this->contentType = "multipart/alternative";

        $this->setMessageType();
        $header .= $this->createHeader();
        $body = $this->createBody();

        if ($body == "")
        {
            return false;
        }

        // Choose the mailer
        if ($this->mailer == "sendmail")
        {
            if (!$this->sendmailSend($header, $body))
                return false;
        }
        elseif ($this->mailer == "mail")
        {
            if (!$this->mailSend($header, $body))
                return false;
        }
        elseif ($this->mailer == "smtp")
        {
            if (!$this->smtpSend($header, $body))
                return false;
        }
        else
        {
            $this->setError($this->mailer . $this->lang("mailer_not_supported"));
            return false;
        }

        return true;
    }

    /**
     * Sends mail using the $sendmail program.  
     * @access private
     * @return bool
     */
    public function sendmailSend($header, $body)
    {
        if ($this->sender != "")
            $sendmail = sprintf("%s -oi -f %s -t", $this->sendmail, $this->sender);
        else
            $sendmail = sprintf("%s -oi -t", $this->sendmail);

        if (!@$mail = popen($sendmail, "w"))
        {
            $this->setError($this->lang("execute") . $this->sendmail);
            return false;
        }

        fputs($mail, $header);
        fputs($mail, $body);

        $result = pclose($mail) >> 8 & 0xFF;

        if ($result != 0)
        {
            $this->setError($this->lang("execute") . $this->sendmail);
            return false;
        }

        return true;
    }

    /**
     * Sends mail using the PHP mail() function.  
     * @access private
     * @return bool
     */
    public function mailSend($header, $body)
    {
        $to = "";

        for ($i = 0; $i < count($this->to); $i++)
        {
            if ($i != 0)
            {
                $to .= ", ";
            }

            $to .= $this->to[$i][0];
        }

        if ($this->sender != "" && strlen(ini_get("safe_mode")) < 1)
        {
            $old_from = ini_get("sendmail_from");
            ini_set("sendmail_from", $this->sender);
            $params = sprintf("-oi -f %s", $this->sender);
            $rt = @mail($to, $this->encodeHeader($this->subject), $body, $header, $params);
        }
        else
            $rt = @mail($to, $this->encodeHeader($this->subject), $body, $header);

        if (isset($old_from))
            ini_set("sendmail_from", $old_from);

        if (!$rt)
        {
            $this->setError($this->lang("instantiate"));
            return false;
        }

        return true;
    }

    /**
     * Sends mail via SMTP using PhpSMTP (Author:
     * Chris Ryan).  Returns bool.  Returns false if there is a
     * bad MAIL FROM, RCPT, or DATA input.
     * @access private
     * @return bool
     */
    public function smtpSend($header, $body)
    {
        include_once ($this->pluginDir . "class.smtp.php");
        $error = "";
        $bad_rcpt = array(
            );

        if (!$this->smtpConnect())
            return false;

        $smtp_from = ($this->sender == "") ? $this->from : $this->sender;

        if (!$this->smtp->mail($smtp_from))
        {
            $error = $this->lang("from_failed") . $smtp_from;
            $this->setError($error);
            $this->smtp->reset();
            return false;
        }

        // Attempt to send attach all recipients
        for ($i = 0; $i < count($this->to); $i++)
        {
            if (!$this->smtp->recipient($this->to[$i][0]))
                $bad_rcpt[] = $this->to[$i][0];
        }

        for ($i = 0; $i < count($this->cc); $i++)
        {
            if (!$this->smtp->recipient($this->cc[$i][0]))
                $bad_rcpt[] = $this->cc[$i][0];
        }

        for ($i = 0; $i < count($this->bcc); $i++)
        {
            if (!$this->smtp->recipient($this->bcc[$i][0]))
                $bad_rcpt[] = $this->bcc[$i][0];
        }

        if (count($bad_rcpt) > 0) // Create error message
        {
            for ($i = 0; $i < count($bad_rcpt); $i++)
            {
                if ($i != 0)
                {
                    $error .= ", ";
                }

                $error .= $bad_rcpt[$i];
            }

            $error = $this->lang("recipients_failed") . $error;
            $this->setError($error);
            $this->smtp->reset();
            return false;
        }

        if (!$this->smtp->data($header . $body))
        {
            $this->setError($this->lang("data_not_accepted"));
            $this->smtp->reset();
            return false;
        }

        if ($this->SMTPKeepAlive == true)
            $this->smtp->reset();
        else
            $this->smtpClose();

        return true;
    }

    /**
     * Initiates a connection to an SMTP server.  Returns false if the 
     * operation failed.
     * @access private
     * @return bool
     */
    public function smtpConnect()
    {
        if ($this->smtp == NULL)
        {
            $this->smtp = new SMTP();
        }

        $this->smtp->do_debug = $this->SMTPDebug;
        $hosts = explode(";", $this->host);
        $index = 0;
        $connection = ($this->smtp->connected());

        // Retry while there is no connection
        while ($index < count($hosts) && $connection == false)
        {
            if (strstr($hosts[$index], ":"))
                list($host, $port) = explode(":", $hosts[$index]);
            else
            {
                $host = $hosts[$index];
                $port = $this->port;
            }

            if ($this->smtp->connect($host, $port, $this->timeout))
            {
                if ($this->helo != '')
                    $this->smtp->hello($this->helo);
                else
                    $this->smtp->hello($this->serverHostname());

                if ($this->SMTPAuth)
                {
                    if (!$this->smtp->authenticate($this->username, $this->password))
                    {
                        $this->setError($this->lang("authenticate"));
                        $this->smtp->reset();
                        $connection = false;
                    }
                }

                $connection = true;
            }

            $index++;
        }

        if (!$connection)
            $this->setError($this->lang("connect_host"));

        return $connection;
    }

    /**
     * Closes the active SMTP session if one exists.
     * @return void
     */
    public function smtpClose()
    {
        if ($this->smtp != NULL)
        {
            if ($this->smtp->connected())
            {
                $this->smtp->quit();
                $this->smtp->close();
            }
        }
    }

    /**
     * Sets the language for all class error messages.  Returns false 
     * if it cannot load the language file.  The default language type
     * is English.
     * @param string $lang_type Type of language (e.g. Portuguese: "br")
     * @param string $lang_path Path to the language file directory
     * @access public
     * @return bool
     */
    public function setLanguage($lang_type, $lang_path = "")
    {
        if (file_exists($lang_path . 'phpmailer.lang-' . $lang_type . '.php'))
            include ($lang_path . 'phpmailer.lang-' . $lang_type . '.php');

        else if (file_exists($lang_path . 'phpmailer.lang-en.php'))
            include ($lang_path . 'phpmailer.lang-en.php');

        else
        {
            $this->setError("Could not load language file");
            return false;
        }

        $this->language = $PHPMAILER_LANG;

        return true;
    }

    /////////////////////////////////////////////////
    // MESSAGE CREATION METHODS
    /////////////////////////////////////////////////

    /**
     * Creates recipient headers.  
     * @access private
     * @return string
     */
    public function addrAppend($type, $addr)
    {
        $addr_str = $type . ": ";
        $addr_str .= $this->addrFormat($addr[0]);

        if (count($addr) > 1)
        {
            for ($i = 1; $i < count($addr); $i++)
                $addr_str .= ", " . $this->addrFormat($addr[$i]);
        }

        $addr_str .= $this->LE;

        return $addr_str;
    }

    /**
     * Formats an address correctly. 
     * @access private
     * @return string
     */
    public function addrFormat($addr)
    {
        if (empty($addr[1]))
            $formatted = $addr[0];
        else
        {
            $formatted = $this->encodeHeader($addr[1], 'phrase') . " <" . $addr[0] . ">";
        }

        return $formatted;
    }

    /**
     * Wraps message for use with mailers that do not
     * automatically perform wrapping and for quoted-printable.
     * Original written by philippe.  
     * @access private
     * @return string
     */
    public function wrapText($message, $length, $qp_mode = false)
    {
        $soft_break = ($qp_mode) ? sprintf(" =%s", $this->LE) : $this->LE;

        $message = $this->fixEOL($message);

        if (substr($message, -1) == $this->LE)
            $message = substr($message, 0, -1);

        $line = explode($this->LE, $message);
        $message = "";

        for ($i = 0; $i < count($line); $i++)
        {
            $line_part = explode(" ", $line[$i]);
            $buf = "";

            for ($e = 0; $e < count($line_part); $e++)
            {
                $word = $line_part[$e];

                if ($qp_mode and (strlen($word) > $length))
                {
                    $space_left = $length - strlen($buf) - 1;

                    if ($e != 0)
                    {
                        if ($space_left > 20)
                        {
                            $len = $space_left;

                            if (substr($word, $len - 1, 1) == "=")
                                $len--;

                            elseif (substr($word, $len - 2, 1) == "=")
                                $len -= 2;

                            $part = substr($word, 0, $len);
                            $word = substr($word, $len);
                            $buf .= " " . $part;
                            $message .= $buf . sprintf("=%s", $this->LE);
                        }
                        else
                        {
                            $message .= $buf . $soft_break;
                        }

                        $buf = "";
                    }

                    while (strlen($word) > 0)
                    {
                        $len = $length;

                        if (substr($word, $len - 1, 1) == "=")
                            $len--;

                        elseif (substr($word, $len - 2, 1) == "=")
                            $len -= 2;

                        $part = substr($word, 0, $len);
                        $word = substr($word, $len);

                        if (strlen($word) > 0)
                            $message .= $part . sprintf("=%s", $this->LE);
                        else
                            $buf = $part;
                    }
                }
                else
                {
                    $buf_o = $buf;
                    $buf .= ($e == 0) ? $word : (" " . $word);

                    if (strlen($buf) > $length and $buf_o != "")
                    {
                        $message .= $buf_o . $soft_break;
                        $buf = $word;
                    }
                }
            }

            $message .= $buf . $this->LE;
        }

        return $message;
    }

    /**
     * Set the body wrapping.
     * @access private
     * @return void
     */
    public function setWordWrap()
    {
        if ($this->wordWrap < 1)
            return;

        switch ($this->message_type)
            {
            case "alt":
            // fall through
            case "alt_attachment":
                $this->altBody = $this->wrapText($this->altBody, $this->wordWrap);

                break;

            default:
                $this->body = $this->wrapText($this->body, $this->wordWrap);

                break;
            }
    }

    /**
     * Assembles message header.  
     * @access private
     * @return string
     */
    public function createHeader()
    {
        $result = "";

        // Set the boundaries
        $uniq_id = md5(uniqid(time()));
        $this->boundary[1] = "b1_" . $uniq_id;
        $this->boundary[2] = "b2_" . $uniq_id;

        $result .= $this->received();
        $result .= $this->headerLine("Date", $this->RFCDate());

        if ($this->sender == "")
            $result .= $this->headerLine("Return-Path", trim($this->from));
        else
            $result .= $this->headerLine("Return-Path", trim($this->sender));

        // To be created automatically by mail()
        if ($this->mailer != "mail")
        {
            if (count($this->to) > 0)
                $result .= $this->addrAppend("To", $this->to);

            else if (count($this->cc) == 0)
                $result .= $this->headerLine("To", "undisclosed-recipients:;");

            if (count($this->cc) > 0)
                $result .= $this->addrAppend("Cc", $this->cc);
        }

        $from = array(
            );

        $from[0][0] = trim($this->from);
        $from[0][1] = $this->fromName;
        $result .= $this->addrAppend("From", $from);

        // sendmail and mail() extract Bcc from the header before sending
        if ((($this->mailer == "sendmail") || ($this->mailer == "mail")) && (count($this->bcc) > 0))
            $result .= $this->addrAppend("Bcc", $this->bcc);

        if (count($this->replyTo) > 0)
            $result .= $this->addrAppend("Reply-to", $this->replyTo);

        // mail() sets the subject itself
        if ($this->mailer != "mail")
            $result .= $this->headerLine("Subject", $this->encodeHeader(trim($this->subject)));

        $result .= sprintf("Message-ID: <%s@%s>%s", $uniq_id, $this->serverHostname(), $this->LE);
        $result .= $this->headerLine("X-Priority", $this->priority);
        $result .= $this->headerLine("X-Mailer", "PHPMailer [version " . $this->version . "]");

        if ($this->confirmReadingTo != "")
        {
            $result .= $this->headerLine("Disposition-Notification-To", "<" . trim($this->confirmReadingTo) . ">");
        }

        // Add custom headers
        for ($index = 0; $index < count($this->customHeader); $index++)
        {
            $result .= $this->headerLine(trim($this->customHeader[$index][0]),
                                         $this->encodeHeader(trim($this->customHeader[$index][1])));
        }

        $result .= $this->headerLine("MIME-Version", "1.0");

        switch ($this->message_type)
            {
            case "plain":
                $result .= $this->headerLine("Content-Transfer-Encoding", $this->encoding);

                $result .= sprintf("Content-Type: %s; charset=\"%s\"", $this->contentType, $this->charSet);
                break;

            case "attachments":
            // fall through
            case "alt_attachments":
                if ($this->inlineImageExists())
                {
                    $result .= sprintf("Content-Type: %s;%s\ttype=\"text/html\";%s\tboundary=\"%s\"%s",
                                       "multipart/related",
                                       $this->LE,
                                       $this->LE,
                                       $this->boundary[1],
                                       $this->LE);
                }
                else
                {
                    $result .= $this->headerLine("Content-Type", "multipart/mixed;");
                    $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
                }

                break;

            case "alt":
                $result .= $this->headerLine("Content-Type", "multipart/alternative;");

                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
                break;
            }

        if ($this->mailer != "mail")
            $result .= $this->LE . $this->LE;

        return $result;
    }

    /**
     * Assembles the message body.  Returns an empty string on failure.
     * @access private
     * @return string
     */
    public function createBody()
    {
        $result = "";

        $this->setWordWrap();

        switch ($this->message_type)
            {
            case "alt":
                $result .= $this->getBoundary($this->boundary[1], "", "text/plain", "");

                $result .= $this->encodeString($this->altBody, $this->encoding);
                $result .= $this->LE . $this->LE;
                $result .= $this->getBoundary($this->boundary[1], "", "text/html", "");

                $result .= $this->encodeString($this->body, $this->encoding);
                $result .= $this->LE . $this->LE;

                $result .= $this->endBoundary($this->boundary[1]);
                break;

            case "plain":
                $result .= $this->encodeString($this->body, $this->encoding);

                break;

            case "attachments":
                $result .= $this->getBoundary($this->boundary[1], "", "", "");

                $result .= $this->encodeString($this->body, $this->encoding);
                $result .= $this->LE;

                $result .= $this->attachAll();
                break;

            case "alt_attachments":
                $result .= sprintf("--%s%s", $this->boundary[1], $this->LE);

                $result .= sprintf("Content-Type: %s;%s" . "\tboundary=\"%s\"%s", "multipart/alternative", $this->LE,
                                   $this->boundary[2],                            $this->LE . $this->LE);

                // Create text body
                $result .= $this->getBoundary($this->boundary[2], "", "text/plain", "") . $this->LE;

                $result .= $this->encodeString($this->altBody, $this->encoding);
                $result .= $this->LE . $this->LE;

                // Create the HTML body
                $result .= $this->getBoundary($this->boundary[2], "", "text/html", "") . $this->LE;

                $result .= $this->encodeString($this->body, $this->encoding);
                $result .= $this->LE . $this->LE;

                $result .= $this->endBoundary($this->boundary[2]);

                $result .= $this->attachAll();
                break;
            }

        if ($this->isError())
            $result = "";

        return $result;
    }

    /**
     * Returns the start of a message boundary.
     * @access private
     */
    public function getBoundary($boundary, $charSet, $contentType, $encoding)
    {
        $result = "";

        if ($charSet == "")
        {
            $charSet = $this->charSet;
        }

        if ($contentType == "")
        {
            $contentType = $this->contentType;
        }

        if ($encoding == "")
        {
            $encoding = $this->encoding;
        }

        $result .= $this->textLine("--" . $boundary);
        $result .= sprintf("Content-Type: %s; charset = \"%s\"", $contentType, $charSet);
        $result .= $this->LE;
        $result .= $this->headerLine("Content-Transfer-Encoding", $encoding);
        $result .= $this->LE;

        return $result;
    }

    /**
     * Returns the end of a message boundary.
     * @access private
     */
    public function endBoundary($boundary)
    {
        return $this->LE . "--" . $boundary . "--" . $this->LE;
    }

    /**
     * Sets the message type.
     * @access private
     * @return void
     */
    public function setMessageType()
    {
        if (count($this->attachment) < 1 && strlen($this->altBody) < 1)
            $this->message_type = "plain";
        else
        {
            if (count($this->attachment) > 0)
                $this->message_type = "attachments";

            if (strlen($this->altBody) > 0 && count($this->attachment) < 1)
                $this->message_type = "alt";

            if (strlen($this->altBody) > 0 && count($this->attachment) > 0)
                $this->message_type = "alt_attachments";
        }
    }

    /**
     * Returns a formatted header line.
     * @access private
     * @return string
     */
    public function headerLine($name, $value)
    {
        return $name . ": " . $value . $this->LE;
    }

    /**
     * Returns a formatted mail line.
     * @access private
     * @return string
     */
    public function textLine($value)
    {
        return $value . $this->LE;
    }

    /////////////////////////////////////////////////
    // ATTACHMENT METHODS
    /////////////////////////////////////////////////

    /**
     * Adds an attachment from a path on the filesystem.
     * Returns false if the file could not be found
     * or accessed.
     * @param string $path Path to the attachment.
     * @param string $name Overrides the attachment name.
     * @param string $encoding File encoding (see $encoding).
     * @param string $type File extension (MIME) type.
     * @return bool
     */
    public function addAttachment($path, $name = "", $encoding = "base64", $type = "application/octet-stream")
    {
        if (!@is_file($path))
        {
            $this->setError($this->lang("file_access") . $path);
            return false;
        }

        $filename = basename($path);

        if ($name == "")
            $name = $filename;

        $cur = count($this->attachment);
        $this->attachment[$cur][0] = $path;
        $this->attachment[$cur][1] = $filename;
        $this->attachment[$cur][2] = $name;
        $this->attachment[$cur][3] = $encoding;
        $this->attachment[$cur][4] = $type;
        $this->attachment[$cur][5] = false; // isStringAttachment
        $this->attachment[$cur][6] = "attachment";
        $this->attachment[$cur][7] = 0;

        return true;
    }

    /**
     * Attaches all fs, string, and binary attachments to the message.
     * Returns an empty string on failure.
     * @access private
     * @return string
     */
    public function attachAll()
    {
        // Return text of body
        $mime = array(
            );

        // Add all attachments
        for ($i = 0; $i < count($this->attachment); $i++)
        {
            // Check for string attachment
            $bString = $this->attachment[$i][5];

            if ($bString)
                $string = $this->attachment[$i][0];
            else
                $path = $this->attachment[$i][0];

            $filename = $this->attachment[$i][1];
            $name = $this->attachment[$i][2];
            $encoding = $this->attachment[$i][3];
            $type = $this->attachment[$i][4];
            $disposition = $this->attachment[$i][6];
            $cid = $this->attachment[$i][7];

            $mime[] = sprintf("--%s%s", $this->boundary[1], $this->LE);
            $mime[] = sprintf("Content-Type: %s; name=\"%s\"%s", $type, $name, $this->LE);
            $mime[] = sprintf("Content-Transfer-Encoding: %s%s", $encoding, $this->LE);

            if ($disposition == "inline")
                $mime[] = sprintf("Content-ID: <%s>%s", $cid, $this->LE);

            $mime[] = sprintf("Content-Disposition: %s; filename=\"%s\"%s", $disposition, $name, $this->LE . $this->LE);

            // Encode as string attachment
            if ($bString)
            {
                $mime[] = $this->encodeString($string, $encoding);

                if ($this->isError())
                {
                    return "";
                }

                $mime[] = $this->LE . $this->LE;
            }
            else
            {
                $mime[] = $this->encodeFile($path, $encoding);

                if ($this->isError())
                {
                    return "";
                }

                $mime[] = $this->LE . $this->LE;
            }
        }

        $mime[] = sprintf("--%s--%s", $this->boundary[1], $this->LE);

        return join("", $mime);
    }

    /**
     * Encodes attachment in requested format.  Returns an
     * empty string on failure.
     * @access private
     * @return string
     */
    public function encodeFile($path, $encoding = "base64")
    {
        if (!@$fd = fopen($path, "rb"))
        {
            $this->setError($this->lang("file_open") . $path);
            return "";
        }

        $file_buffer = fread($fd, filesize($path));
        $file_buffer = $this->encodeString($file_buffer, $encoding);
        fclose ($fd);

        return $file_buffer;
    }

    /**
     * Encodes string to requested format. Returns an
     * empty string on failure.
     * @access private
     * @return string
     */
    public function encodeString($str, $encoding = "base64")
    {
        $encoded = "";

        switch (strtolower($encoding))
            {
            case "base64":
                // chunk_split is found in PHP >= 3.0.6
                $encoded = chunk_split(base64_encode($str), 76, $this->LE);

                break;

            case "7bit":
            case "8bit":
                $encoded = $this->fixEOL($str);

                if (substr($encoded, -(strlen($this->LE))) != $this->LE)
                    $encoded .= $this->LE;

                break;

            case "binary":
                $encoded = $str;

                break;

            case "quoted-printable":
                $encoded = $this->encodeQP($str);

                break;

            default:
                $this->setError($this->lang("encoding") . $encoding);

                break;
            }

        return $encoded;
    }

    /**
     * Encode a header string to best of Q, B, quoted or none.  
     * @access private
     * @return string
     */
    public function encodeHeader($str, $position = 'text')
    {
        $x = 0;

        switch (strtolower($position))
            {
            case 'phrase':
                if (!preg_match('/[\200-\377]/', $str))
                {
                    // Can't use addslashes as we don't know what value has magic_quotes_sybase.
                    $encoded = addcslashes($str, "\0..\37\177\\\"");

                    if (($str == $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str))
                        return ($encoded);
                    else
                        return ("\"$encoded\"");
                }

                $x = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
                break;

            case 'comment': $x = preg_match_all('/[()"]/', $str, $matches);

            // Fall-through
            case 'text':
            default:
                $x += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);

                break;
            }

        if ($x == 0)
            return ($str);

        $maxlen = 75 - 7 - strlen($this->charSet);

        // Try to select the encoding which should produce the shortest output
        if (strlen($str) / 3 < $x)
        {
            $encoding = 'B';
            $encoded = base64_encode($str);
            $maxlen -= $maxlen % 4;
            $encoded = trim(chunk_split($encoded, $maxlen, "\n"));
        }
        else
        {
            $encoding = 'Q';
            $encoded = $this->encodeQ($str, $position);
            $encoded = $this->wrapText($encoded, $maxlen, true);
            $encoded = str_replace("=" . $this->LE, "\n", trim($encoded));
        }

        $encoded = preg_replace('/^(.*)$/m', " =?" . $this->charSet . "?$encoding?\\1?=", $encoded);
        $encoded = trim(str_replace("\n", $this->LE, $encoded));

        return $encoded;
    }

    /**
     * Encode string to quoted-printable.  
     * @access private
     * @return string
     */
    public function encodeQP($str)
    {
        $encoded = $this->fixEOL($str);

        if (substr($encoded, -(strlen($this->LE))) != $this->LE)
            $encoded .= $this->LE;

        // Replace every high ascii, control and = characters
        $encoded = preg_replace('/([\000-\010\013\014\016-\037\075\177-\377])/e', "'='.sprintf('%02X', ord('\\1'))",
                                $encoded);
        // Replace every spaces and tabs when it's the last character on a line
        $encoded = preg_replace("/([\011\040])" . $this->LE . "/e",
                                "'='.sprintf('%02X', ord('\\1')).'" . $this->LE . "'",
                                $encoded);

        // Maximum line length of 76 characters before CRLF (74 + space + '=')
        $encoded = $this->wrapText($encoded, 74, true);

        return $encoded;
    }

    /**
     * Encode string to q encoding.  
     * @access private
     * @return string
     */
    public function encodeQ($str, $position = "text")
    {
        // There should not be any EOL in the string
        $encoded = preg_replace("[\r\n]", "", $str);

        switch (strtolower($position))
            {
            case "phrase":
                $encoded = preg_replace("/([^A-Za-z0-9!*+\/ -])/e", "'='.sprintf('%02X', ord('\\1'))", $encoded);

                break;

            case "comment": $encoded = preg_replace("/([\(\)\"])/e", "'='.sprintf('%02X', ord('\\1'))", $encoded);

            case "text":
            default:
                // Replace every high ascii, control =, ? and _ characters
                $encoded = preg_replace('/([\000-\011\013\014\016-\037\075\077\137\177-\377])/e',
                                        "'='.sprintf('%02X', ord('\\1'))",
                                        $encoded);

                break;
            }

        // Replace every spaces to _ (more readable than =20)
        $encoded = str_replace(" ", "_", $encoded);

        return $encoded;
    }

    /**
     * Adds a string or binary attachment (non-filesystem) to the list.
     * This method can be used to attach ascii or binary data,
     * such as a BLOB record from a database.
     * @param string $string String attachment data.
     * @param string $filename Name of the attachment.
     * @param string $encoding File encoding (see $encoding).
     * @param string $type File extension (MIME) type.
     * @return void
     */
    public function addStringAttachment($string, $filename, $encoding = "base64", $type = "application/octet-stream")
    {
        // Append to $attachment array
        $cur = count($this->attachment);
        $this->attachment[$cur][0] = $string;
        $this->attachment[$cur][1] = $filename;
        $this->attachment[$cur][2] = $filename;
        $this->attachment[$cur][3] = $encoding;
        $this->attachment[$cur][4] = $type;
        $this->attachment[$cur][5] = true; // isString
        $this->attachment[$cur][6] = "attachment";
        $this->attachment[$cur][7] = 0;
    }

    /**
     * Adds an embedded attachment.  This can include images, sounds, and 
     * just about any other document.  Make sure to set the $type to an 
     * image type.  For JPEG images use "image/jpeg" and for GIF images 
     * use "image/gif".
     * @param string $path Path to the attachment.
     * @param string $cid Content ID of the attachment.  Use this to identify 
     *        the Id for accessing the image in an HTML form.
     * @param string $name Overrides the attachment name.
     * @param string $encoding File encoding (see $encoding).
     * @param string $type File extension (MIME) type.  
     * @return bool
     */
    public function addEmbeddedImage($path, $cid, $name = "", $encoding = "base64", $type = "application/octet-stream")
    {
        if (!@is_file($path))
        {
            $this->setError($this->lang("file_access") . $path);
            return false;
        }

        $filename = basename($path);

        if ($name == "")
            $name = $filename;

        // Append to $attachment array
        $cur = count($this->attachment);
        $this->attachment[$cur][0] = $path;
        $this->attachment[$cur][1] = $filename;
        $this->attachment[$cur][2] = $name;
        $this->attachment[$cur][3] = $encoding;
        $this->attachment[$cur][4] = $type;
        $this->attachment[$cur][5] = false; // isStringAttachment
        $this->attachment[$cur][6] = "inline";
        $this->attachment[$cur][7] = $cid;

        return true;
    }

    /**
     * Returns true if an inline attachment is present.
     * @access private
     * @return bool
     */
    public function inlineImageExists()
    {
        $result = false;

        for ($i = 0; $i < count($this->attachment); $i++)
        {
            if ($this->attachment[$i][6] == "inline")
            {
                $result = true;
                break;
            }
        }

        return $result;
    }

    /////////////////////////////////////////////////
    // MESSAGE RESET METHODS
    /////////////////////////////////////////////////

    /**
     * Clears all recipients assigned in the TO array.  Returns void.
     * @return void
     */
    public function clearAddresses()
    {
        $this->to = array(
            );
    }

    /**
     * Clears all recipients assigned in the CC array.  Returns void.
     * @return void
     */
    public function clearCCs()
    {
        $this->cc = array(
            );
    }

    /**
     * Clears all recipients assigned in the BCC array.  Returns void.
     * @return void
     */
    public function clearBCCs()
    {
        $this->bcc = array(
            );
    }

    /**
     * Clears all recipients assigned in the ReplyTo array.  Returns void.
     * @return void
     */
    public function clearReplyTos()
    {
        $this->replyTo = array(
            );
    }

    /**
     * Clears all recipients assigned in the TO, CC and BCC
     * array.  Returns void.
     * @return void
     */
    public function clearAllRecipients()
    {
        $this->to = array(
            );

        $this->cc = array(
            );

        $this->bcc = array(
            );
    }

    /**
     * Clears all previously set filesystem, string, and binary
     * attachments.  Returns void.
     * @return void
     */
    public function clearAttachments()
    {
        $this->attachment = array(
            );
    }

    /**
     * Clears all custom headers.  Returns void.
     * @return void
     */
    public function clearCustomHeaders()
    {
        $this->customHeader = array(
            );
    }

    /////////////////////////////////////////////////
    // MISCELLANEOUS METHODS
    /////////////////////////////////////////////////

    /**
     * Adds the error message to the error container.
     * Returns void.
     * @access private
     * @return void
     */
    public function setError($msg)
    {
        $this->error_count++;
        $this->errorInfo = $msg;
    }

    /**
     * Returns the proper RFC 822 formatted date. 
     * @access private
     * @return string
     */
    public function RFCDate()
    {
        $tz = date("Z");
        $tzs = ($tz < 0) ? "-" : "+";
        $tz = abs($tz);
        $tz = ($tz / 3600) * 100 + ($tz % 3600) / 60;
        $result = sprintf("%s %s%04d", date("D, j M Y H:i:s"), $tzs, $tz);

        return $result;
    }

    /**
     * Returns Received header for message tracing. 
     * @access private
     * @return string
     */
    public function received()
    {
        if ($this->serverVar('SERVER_NAME') != '')
        {
            $protocol = ($this->serverVar('HTTPS') == 'on') ? 'HTTPS' : 'HTTP';
            $remote = $this->serverVar('REMOTE_HOST');

            if ($remote == "")
                $remote = 'phpmailer';

            $remote .= ' ([' . $this->serverVar('REMOTE_ADDR') . '])';
        }
        else
        {
            $protocol = 'local';
            $remote = $this->serverVar('USER');

            if ($remote == '')
                $remote = 'phpmailer';
        }

        $result = sprintf("Received: from %s %s\tby %s " . "with %s (PHPMailer);%s\t%s%s", $remote,   $this->LE,
                          $this->serverHostname(),                                         $protocol, $this->LE,
                          $this->RFCDate(),                                                $this->LE);

        return $result;
    }

    /**
     * Returns the appropriate server variable.  Should work with both 
     * PHP 4.1.0+ as well as older versions.  Returns an empty string 
     * if nothing is found.
     * @access private
     * @return mixed
     */
    public function serverVar($varName)
    {
        global $HTTP_SERVER_VARS;
        global $HTTP_ENV_VARS;

        if (!isset($_SERVER))
        {
            $_SERVER = $HTTP_SERVER_VARS;

            if (!isset($_SERVER["REMOTE_ADDR"]))
                $_SERVER = $HTTP_ENV_VARS; // must be Apache
        }

        if (isset($_SERVER[$varName]))
            return $_SERVER[$varName];
        else
            return "";
    }

    /**
     * Returns the server hostname or 'localhost.localdomain' if unknown.
     * @access private
     * @return string
     */
    public function serverHostname()
    {
        if ($this->hostname != "")
            $result = $this->hostname;

        elseif ($this->serverVar('SERVER_NAME') != "")
            $result = $this->serverVar('SERVER_NAME');

        else
            $result = "localhost.localdomain";

        return $result;
    }

    /**
     * Returns a message in the appropriate language.
     * @access private
     * @return string
     */
    public function lang($key)
    {
        if (count($this->language) < 1)
            $this->setLanguage("en"); // set the default language

        if (isset($this->language[$key]))
            return $this->language[$key];
        else
            return "Language string failed to load: " . $key;
    }

    /**
     * Returns true if an error occurred.
     * @return bool
     */
    public function isError()
    {
        return ($this->error_count > 0);
    }

    /**
     * Changes every end of line from CR or LF to CRLF.  
     * @access private
     * @return string
     */
    public function fixEOL($str)
    {
        $str = str_replace("\r\n", "\n", $str);
        $str = str_replace("\r", "\n", $str);
        $str = str_replace("\n", $this->LE, $str);
        return $str;
    }

    /**
     * Adds a custom header. 
     * @return void
     */
    public function addCustomHeader($custom_header)
    {
        $this->customHeader[] = explode(":", $custom_header, 2);
    }
}
?>