<?php

/**

 * PHPMailer - PHP email creation and transport class.

 * PHP Version 5

 * @package PHPMailer

 * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project

 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>

 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>

 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>

 * @author Brent R. Matzelle (original founder)

 * @copyright 2012 - 2014 Marcus Bointon

 * @copyright 2010 - 2012 Jim Jagielski

 * @copyright 2004 - 2009 Andy Prevost

 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License

 * @note This program is distributed in the hope that it will be useful - WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.

 */

/**

 * PHPMailer - PHP email creation and transport class.

 * @package PHPMailer

 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>

 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>

 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>

 * @author Brent R. Matzelle (original founder)

 */

class PHPMailer

{

    /**

     * The PHPMailer Version number.

     * @var string

     */

    public $Version = '5.2.22';

    /**

     * Email priority.

     * Options: null (default), 1 = High, 3 = Normal, 5 = low.

     * When null, the header is not set at all.

     * @var integer

     */

    public $Priority = null;

    /**

     * The character set of the message.

     * @var string

     */

    public $CharSet = 'iso-8859-1';

    /**

     * The MIME Content-type of the message.

     * @var string

     */

    public $ContentType = 'text/plain';

    /**

     * The message encoding.

     * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable".

     * @var string

     */

    public $Encoding = '8bit';

    /**

     * Holds the most recent mailer error message.

     * @var string

     */

    public $ErrorInfo = '';

    /**

     * The From email address for the message.

     * @var string

     */

    public $From = 'root@localhost';

    /**

     * The From name of the message.

     * @var string

     */

    public $FromName = 'Root User';

    /**

     * 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 = '';

    /**

     * The Return-Path of the message.

     * If empty, it will be set to either From or Sender.

     * @var string

     * @deprecated Email senders should never set a return-path header;

     * it's the receiver's job (RFC5321 section 4.4), so this no longer does anything.

     * @link https://tools.ietf.org/html/rfc5321#section-4.4 RFC5321 reference

     */

    public $ReturnPath = '';

    /**

     * The Subject of the message.

     * @var string

     */

    public $Subject = '';

    /**

     * An HTML or plain text message body.

     * If HTML then call isHTML(true).

     * @var string

     */

    public $Body = '';

    /**

     * The plain-text message body.

     * This body can be read by mail clients that do not have HTML email

     * capability such as mutt & Eudora.

     * Clients that can read HTML will view the normal Body.

     * @var string

     */

    public $AltBody = '';

    /**

     * An iCal message part body.

     * Only supported in simple alt or alt_inline message types

     * To generate iCal events, use the bundled extras/EasyPeasyICS.php class or iCalcreator

     * @link http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/

     * @link http://kigkonsult.se/iCalcreator/

     * @var string

     */

    public $Ical = '';

    /**

     * The complete compiled MIME message body.

     * @access protected

     * @var string

     */

    protected $MIMEBody = '';

    /**

     * The complete compiled MIME message headers.

     * @var string

     * @access protected

     */

    protected $MIMEHeader = '';

    /**

     * Extra headers that createHeader() doesn't fold in.

     * @var string

     * @access protected

     */

    protected $mailHeader = '';

    /**

     * Word-wrap the message body to this number of chars.

     * Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance.

     * @var integer

     */

    public $WordWrap = 0;

    /**

     * Which method to use to send mail.

     * Options: "mail", "sendmail", or "smtp".

     * @var string

     */

    public $Mailer = 'mail';

    /**

     * The path to the sendmail program.

     * @var string

     */

    public $Sendmail = '/usr/sbin/sendmail';

    /**

     * Whether mail() uses a fully sendmail-compatible MTA.

     * One which supports sendmail's "-oi -f" options.

     * @var boolean

     */

    public $UseSendmailOptions = true;

    /**

     * Path to PHPMailer plugins.

     * Useful if the SMTP class is not in the PHP include path.

     * @var string

     * @deprecated Should not be needed now there is an autoloader.

     */

    public $PluginDir = '';

    /**

     * The email address that a reading confirmation should be sent to, also known as read receipt.

     * @var string

     */

    public $ConfirmReadingTo = '';

    /**

     * The hostname to use in the Message-ID header and as default HELO string.

     * If empty, PHPMailer attempts to find one with, in order,

     * $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value

     * 'localhost.localdomain'.

     * @var string

     */

    public $Hostname = '';

    /**

     * An ID to be used in the Message-ID header.

     * If empty, a unique id will be generated.

     * You can set your own, but it must be in the format "<id@domain>",

     * as defined in RFC5322 section 3.6.4 or it will be ignored.

     * @see https://tools.ietf.org/html/rfc5322#section-3.6.4

     * @var string

     */

    public $MessageID = '';

    /**

     * The message Date to be used in the Date header.

     * If empty, the current date will be added.

     * @var string

     */

    public $MessageDate = '';

    /**

     * SMTP hosts.

     * Either a single hostname or multiple semicolon-delimited hostnames.

     * 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").

     * You can also specify encryption type, for example:

     * (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465").

     * Hosts will be tried in order.

     * @var string

     */

    public $Host = 'localhost';

    /**

     * The default SMTP server port.

     * @var integer

     * @TODO Why is this needed when the SMTP class takes care of it?

     */

    public $Port = 25;

    /**

     * The SMTP HELO of the message.

     * Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find

     * one with the same method described above for $Hostname.

     * @var string

     * @see PHPMailer::$Hostname

     */

    public $Helo = '';

    /**

     * What kind of encryption to use on the SMTP connection.

     * Options: '', 'ssl' or 'tls'

     * @var string

     */

    public $SMTPSecure = '';

    /**

     * Whether to enable TLS encryption automatically if a server supports it,

     * even if `SMTPSecure` is not set to 'tls'.

     * Be aware that in PHP >= 5.6 this requires that the server's certificates are valid.

     * @var boolean

     */

    public $SMTPAutoTLS = true;

    /**

     * Whether to use SMTP authentication.

     * Uses the Username and Password properties.

     * @var boolean

     * @see PHPMailer::$Username

     * @see PHPMailer::$Password

     */

    public $SMTPAuth = false;

    /**

     * Options array passed to stream_context_create when connecting via SMTP.

     * @var array

     */

    public $SMTPOptions = array();

    /**

     * SMTP username.

     * @var string

     */

    public $Username = '';

    /**

     * SMTP password.

     * @var string

     */

    public $Password = '';

    /**

     * SMTP auth type.

     * Options are CRAM-MD5, LOGIN, PLAIN, attempted in that order if not specified

     * @var string

     */

    public $AuthType = '';

    /**

     * SMTP realm.

     * Used for NTLM auth

     * @var string

     */

    public $Realm = '';

    /**

     * SMTP workstation.

     * Used for NTLM auth

     * @var string

     */

    public $Workstation = '';

    /**

     * The SMTP server timeout in seconds.

     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2

     * @var integer

     */

    public $Timeout = 300;

    /**

     * SMTP class debug output mode.

     * Debug output level.

     * Options:

     * * `0` No output

     * * `1` Commands

     * * `2` Data and commands

     * * `3` As 2 plus connection status

     * * `4` Low-level data output

     * @var integer

     * @see SMTP::$do_debug

     */

    public $SMTPDebug = 0;

    /**

     * How to handle debug output.

     * Options:

     * * `echo` Output plain-text as-is, appropriate for CLI

     * * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output

     * * `error_log` Output to error log as configured in php.ini

     *

     * Alternatively, you can provide a callable expecting two params: a message string and the debug level:

     * <code>

     * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};

     * </code>

     * @var string|callable

     * @see SMTP::$Debugoutput

     */

    public $Debugoutput = 'echo';

    /**

     * Whether to keep SMTP connection open after each message.

     * If this is set to true then to close the connection

     * requires an explicit call to smtpClose().

     * @var boolean

     */

    public $SMTPKeepAlive = false;

    /**

     * Whether to split multiple to addresses into multiple messages

     * or send them all in one message.

     * Only supported in `mail` and `sendmail` transports, not in SMTP.

     * @var boolean

     */

    public $SingleTo = false;

    /**

     * Storage for addresses when SingleTo is enabled.

     * @var array

     * @TODO This should really not be public

     */

    public $SingleToArray = array();

    /**

     * Whether to generate VERP addresses on send.

     * Only applicable when sending via SMTP.

     * @link https://en.wikipedia.org/wiki/Variable_envelope_return_path

     * @link http://www.postfix.org/VERP_README.html Postfix VERP info

     * @var boolean

     */

    public $do_verp = false;

    /**

     * Whether to allow sending messages with an empty body.

     * @var boolean

     */

    public $AllowEmpty = false;

    /**

     * The default line ending.

     * @note The default remains "\n". We force CRLF where we know

     *        it must be used via self::CRLF.

     * @var string

     */

    public $LE = "\n";

    /**

     * DKIM selector.

     * @var string

     */

    public $DKIM_selector = '';

    /**

     * DKIM Identity.

     * Usually the email address used as the source of the email.

     * @var string

     */

    public $DKIM_identity = '';

    /**

     * DKIM passphrase.

     * Used if your key is encrypted.

     * @var string

     */

    public $DKIM_passphrase = '';

    /**

     * DKIM signing domain name.

     * @example 'example.com'

     * @var string

     */

    public $DKIM_domain = '';

    /**

     * DKIM private key file path.

     * @var string

     */

    public $DKIM_private = '';

    /**

     * DKIM private key string.

     * If set, takes precedence over `$DKIM_private`.

     * @var string

     */

    public $DKIM_private_string = '';

    /**

     * Callback Action function name.

     *

     * The function that handles the result of the send email action.

     * It is called out by send() for each email sent.

     *

     * Value can be any php callable: http://www.php.net/is_callable

     *

     * Parameters:

     *   boolean $result        result of the send action

     *   string  $to            email address of the recipient

     *   string  $cc            cc email addresses

     *   string  $bcc           bcc email addresses

     *   string  $subject       the subject

     *   string  $body          the email body

     *   string  $from          email address of sender

     * @var string

     */

    public $action_function = '';

    /**

     * What to put in the X-Mailer header.

     * Options: An empty string for PHPMailer default, whitespace for none, or a string to use

     * @var string

     */

    public $XMailer = '';

    /**

     * Which validator to use by default when validating email addresses.

     * May be a callable to inject your own validator, but there are several built-in validators.

     * @see PHPMailer::validateAddress()

     * @var string|callable

     * @static

     */

    public static $validator = 'auto';

    /**

     * An instance of the SMTP sender class.

     * @var SMTP

     * @access protected

     */

    protected $smtp = null;

    /**

     * The array of 'to' names and addresses.

     * @var array

     * @access protected

     */

    protected $to = array();

    /**

     * The array of 'cc' names and addresses.

     * @var array

     * @access protected