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/core/lib/phpmailer/class.phpmailer.php

http://github.com/nshahzad/phpVMS
PHP | 4039 lines | 2374 code | 251 blank | 1414 comment | 391 complexity | ef9d2f7d2b581eeeeacb1515a4c11b78 MD5 | raw file
   1<?php
   2/**
   3 * PHPMailer - PHP email creation and transport class.
   4 * PHP Version 5
   5 * @package PHPMailer
   6 * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
   7 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
   8 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
   9 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
  10 * @author Brent R. Matzelle (original founder)
  11 * @copyright 2012 - 2014 Marcus Bointon
  12 * @copyright 2010 - 2012 Jim Jagielski
  13 * @copyright 2004 - 2009 Andy Prevost
  14 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
  15 * @note This program is distributed in the hope that it will be useful - WITHOUT
  16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17 * FITNESS FOR A PARTICULAR PURPOSE.
  18 */
  19
  20/**
  21 * PHPMailer - PHP email creation and transport class.
  22 * @package PHPMailer
  23 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
  24 * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
  25 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
  26 * @author Brent R. Matzelle (original founder)
  27 */
  28class PHPMailer
  29{
  30    /**
  31     * The PHPMailer Version number.
  32     * @var string
  33     */
  34    public $Version = '5.2.22';
  35
  36    /**
  37     * Email priority.
  38     * Options: null (default), 1 = High, 3 = Normal, 5 = low.
  39     * When null, the header is not set at all.
  40     * @var integer
  41     */
  42    public $Priority = null;
  43
  44    /**
  45     * The character set of the message.
  46     * @var string
  47     */
  48    public $CharSet = 'iso-8859-1';
  49
  50    /**
  51     * The MIME Content-type of the message.
  52     * @var string
  53     */
  54    public $ContentType = 'text/plain';
  55
  56    /**
  57     * The message encoding.
  58     * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable".
  59     * @var string
  60     */
  61    public $Encoding = '8bit';
  62
  63    /**
  64     * Holds the most recent mailer error message.
  65     * @var string
  66     */
  67    public $ErrorInfo = '';
  68
  69    /**
  70     * The From email address for the message.
  71     * @var string
  72     */
  73    public $From = 'root@localhost';
  74
  75    /**
  76     * The From name of the message.
  77     * @var string
  78     */
  79    public $FromName = 'Root User';
  80
  81    /**
  82     * The Sender email (Return-Path) of the message.
  83     * If not empty, will be sent via -f to sendmail or as 'MAIL FROM' in smtp mode.
  84     * @var string
  85     */
  86    public $Sender = '';
  87
  88    /**
  89     * The Return-Path of the message.
  90     * If empty, it will be set to either From or Sender.
  91     * @var string
  92     * @deprecated Email senders should never set a return-path header;
  93     * it's the receiver's job (RFC5321 section 4.4), so this no longer does anything.
  94     * @link https://tools.ietf.org/html/rfc5321#section-4.4 RFC5321 reference
  95     */
  96    public $ReturnPath = '';
  97
  98    /**
  99     * The Subject of the message.
 100     * @var string
 101     */
 102    public $Subject = '';
 103
 104    /**
 105     * An HTML or plain text message body.
 106     * If HTML then call isHTML(true).
 107     * @var string
 108     */
 109    public $Body = '';
 110
 111    /**
 112     * The plain-text message body.
 113     * This body can be read by mail clients that do not have HTML email
 114     * capability such as mutt & Eudora.
 115     * Clients that can read HTML will view the normal Body.
 116     * @var string
 117     */
 118    public $AltBody = '';
 119
 120    /**
 121     * An iCal message part body.
 122     * Only supported in simple alt or alt_inline message types
 123     * To generate iCal events, use the bundled extras/EasyPeasyICS.php class or iCalcreator
 124     * @link http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
 125     * @link http://kigkonsult.se/iCalcreator/
 126     * @var string
 127     */
 128    public $Ical = '';
 129
 130    /**
 131     * The complete compiled MIME message body.
 132     * @access protected
 133     * @var string
 134     */
 135    protected $MIMEBody = '';
 136
 137    /**
 138     * The complete compiled MIME message headers.
 139     * @var string
 140     * @access protected
 141     */
 142    protected $MIMEHeader = '';
 143
 144    /**
 145     * Extra headers that createHeader() doesn't fold in.
 146     * @var string
 147     * @access protected
 148     */
 149    protected $mailHeader = '';
 150
 151    /**
 152     * Word-wrap the message body to this number of chars.
 153     * Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance.
 154     * @var integer
 155     */
 156    public $WordWrap = 0;
 157
 158    /**
 159     * Which method to use to send mail.
 160     * Options: "mail", "sendmail", or "smtp".
 161     * @var string
 162     */
 163    public $Mailer = 'mail';
 164
 165    /**
 166     * The path to the sendmail program.
 167     * @var string
 168     */
 169    public $Sendmail = '/usr/sbin/sendmail';
 170
 171    /**
 172     * Whether mail() uses a fully sendmail-compatible MTA.
 173     * One which supports sendmail's "-oi -f" options.
 174     * @var boolean
 175     */
 176    public $UseSendmailOptions = true;
 177
 178    /**
 179     * Path to PHPMailer plugins.
 180     * Useful if the SMTP class is not in the PHP include path.
 181     * @var string
 182     * @deprecated Should not be needed now there is an autoloader.
 183     */
 184    public $PluginDir = '';
 185
 186    /**
 187     * The email address that a reading confirmation should be sent to, also known as read receipt.
 188     * @var string
 189     */
 190    public $ConfirmReadingTo = '';
 191
 192    /**
 193     * The hostname to use in the Message-ID header and as default HELO string.
 194     * If empty, PHPMailer attempts to find one with, in order,
 195     * $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value
 196     * 'localhost.localdomain'.
 197     * @var string
 198     */
 199    public $Hostname = '';
 200
 201    /**
 202     * An ID to be used in the Message-ID header.
 203     * If empty, a unique id will be generated.
 204     * You can set your own, but it must be in the format "<id@domain>",
 205     * as defined in RFC5322 section 3.6.4 or it will be ignored.
 206     * @see https://tools.ietf.org/html/rfc5322#section-3.6.4
 207     * @var string
 208     */
 209    public $MessageID = '';
 210
 211    /**
 212     * The message Date to be used in the Date header.
 213     * If empty, the current date will be added.
 214     * @var string
 215     */
 216    public $MessageDate = '';
 217
 218    /**
 219     * SMTP hosts.
 220     * Either a single hostname or multiple semicolon-delimited hostnames.
 221     * You can also specify a different port
 222     * for each host by using this format: [hostname:port]
 223     * (e.g. "smtp1.example.com:25;smtp2.example.com").
 224     * You can also specify encryption type, for example:
 225     * (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465").
 226     * Hosts will be tried in order.
 227     * @var string
 228     */
 229    public $Host = 'localhost';
 230
 231    /**
 232     * The default SMTP server port.
 233     * @var integer
 234     * @TODO Why is this needed when the SMTP class takes care of it?
 235     */
 236    public $Port = 25;
 237
 238    /**
 239     * The SMTP HELO of the message.
 240     * Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find
 241     * one with the same method described above for $Hostname.
 242     * @var string
 243     * @see PHPMailer::$Hostname
 244     */
 245    public $Helo = '';
 246
 247    /**
 248     * What kind of encryption to use on the SMTP connection.
 249     * Options: '', 'ssl' or 'tls'
 250     * @var string
 251     */
 252    public $SMTPSecure = '';
 253
 254    /**
 255     * Whether to enable TLS encryption automatically if a server supports it,
 256     * even if `SMTPSecure` is not set to 'tls'.
 257     * Be aware that in PHP >= 5.6 this requires that the server's certificates are valid.
 258     * @var boolean
 259     */
 260    public $SMTPAutoTLS = true;
 261
 262    /**
 263     * Whether to use SMTP authentication.
 264     * Uses the Username and Password properties.
 265     * @var boolean
 266     * @see PHPMailer::$Username
 267     * @see PHPMailer::$Password
 268     */
 269    public $SMTPAuth = false;
 270
 271    /**
 272     * Options array passed to stream_context_create when connecting via SMTP.
 273     * @var array
 274     */
 275    public $SMTPOptions = array();
 276
 277    /**
 278     * SMTP username.
 279     * @var string
 280     */
 281    public $Username = '';
 282
 283    /**
 284     * SMTP password.
 285     * @var string
 286     */
 287    public $Password = '';
 288
 289    /**
 290     * SMTP auth type.
 291     * Options are CRAM-MD5, LOGIN, PLAIN, NTLM, XOAUTH2, attempted in that order if not specified
 292     * @var string
 293     */
 294    public $AuthType = '';
 295
 296    /**
 297     * SMTP realm.
 298     * Used for NTLM auth
 299     * @var string
 300     */
 301    public $Realm = '';
 302
 303    /**
 304     * SMTP workstation.
 305     * Used for NTLM auth
 306     * @var string
 307     */
 308    public $Workstation = '';
 309
 310    /**
 311     * The SMTP server timeout in seconds.
 312     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2
 313     * @var integer
 314     */
 315    public $Timeout = 300;
 316
 317    /**
 318     * SMTP class debug output mode.
 319     * Debug output level.
 320     * Options:
 321     * * `0` No output
 322     * * `1` Commands
 323     * * `2` Data and commands
 324     * * `3` As 2 plus connection status
 325     * * `4` Low-level data output
 326     * @var integer
 327     * @see SMTP::$do_debug
 328     */
 329    public $SMTPDebug = 0;
 330
 331    /**
 332     * How to handle debug output.
 333     * Options:
 334     * * `echo` Output plain-text as-is, appropriate for CLI
 335     * * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output
 336     * * `error_log` Output to error log as configured in php.ini
 337     *
 338     * Alternatively, you can provide a callable expecting two params: a message string and the debug level:
 339     * <code>
 340     * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
 341     * </code>
 342     * @var string|callable
 343     * @see SMTP::$Debugoutput
 344     */
 345    public $Debugoutput = 'echo';
 346
 347    /**
 348     * Whether to keep SMTP connection open after each message.
 349     * If this is set to true then to close the connection
 350     * requires an explicit call to smtpClose().
 351     * @var boolean
 352     */
 353    public $SMTPKeepAlive = false;
 354
 355    /**
 356     * Whether to split multiple to addresses into multiple messages
 357     * or send them all in one message.
 358     * Only supported in `mail` and `sendmail` transports, not in SMTP.
 359     * @var boolean
 360     */
 361    public $SingleTo = false;
 362
 363    /**
 364     * Storage for addresses when SingleTo is enabled.
 365     * @var array
 366     * @TODO This should really not be public
 367     */
 368    public $SingleToArray = array();
 369
 370    /**
 371     * Whether to generate VERP addresses on send.
 372     * Only applicable when sending via SMTP.
 373     * @link https://en.wikipedia.org/wiki/Variable_envelope_return_path
 374     * @link http://www.postfix.org/VERP_README.html Postfix VERP info
 375     * @var boolean
 376     */
 377    public $do_verp = false;
 378
 379    /**
 380     * Whether to allow sending messages with an empty body.
 381     * @var boolean
 382     */
 383    public $AllowEmpty = false;
 384
 385    /**
 386     * The default line ending.
 387     * @note The default remains "\n". We force CRLF where we know
 388     *        it must be used via self::CRLF.
 389     * @var string
 390     */
 391    public $LE = "\n";
 392
 393    /**
 394     * DKIM selector.
 395     * @var string
 396     */
 397    public $DKIM_selector = '';
 398
 399    /**
 400     * DKIM Identity.
 401     * Usually the email address used as the source of the email.
 402     * @var string
 403     */
 404    public $DKIM_identity = '';
 405
 406    /**
 407     * DKIM passphrase.
 408     * Used if your key is encrypted.
 409     * @var string
 410     */
 411    public $DKIM_passphrase = '';
 412
 413    /**
 414     * DKIM signing domain name.
 415     * @example 'example.com'
 416     * @var string
 417     */
 418    public $DKIM_domain = '';
 419
 420    /**
 421     * DKIM private key file path.
 422     * @var string
 423     */
 424    public $DKIM_private = '';
 425
 426    /**
 427     * DKIM private key string.
 428     * If set, takes precedence over `$DKIM_private`.
 429     * @var string
 430     */
 431    public $DKIM_private_string = '';
 432
 433    /**
 434     * Callback Action function name.
 435     *
 436     * The function that handles the result of the send email action.
 437     * It is called out by send() for each email sent.
 438     *
 439     * Value can be any php callable: http://www.php.net/is_callable
 440     *
 441     * Parameters:
 442     *   boolean $result        result of the send action
 443     *   string  $to            email address of the recipient
 444     *   string  $cc            cc email addresses
 445     *   string  $bcc           bcc email addresses
 446     *   string  $subject       the subject
 447     *   string  $body          the email body
 448     *   string  $from          email address of sender
 449     * @var string
 450     */
 451    public $action_function = '';
 452
 453    /**
 454     * What to put in the X-Mailer header.
 455     * Options: An empty string for PHPMailer default, whitespace for none, or a string to use
 456     * @var string
 457     */
 458    public $XMailer = '';
 459
 460    /**
 461     * Which validator to use by default when validating email addresses.
 462     * May be a callable to inject your own validator, but there are several built-in validators.
 463     * @see PHPMailer::validateAddress()
 464     * @var string|callable
 465     * @static
 466     */
 467    public static $validator = 'auto';
 468
 469    /**
 470     * An instance of the SMTP sender class.
 471     * @var SMTP
 472     * @access protected
 473     */
 474    protected $smtp = null;
 475
 476    /**
 477     * The array of 'to' names and addresses.
 478     * @var array
 479     * @access protected
 480     */
 481    protected $to = array();
 482
 483    /**
 484     * The array of 'cc' names and addresses.
 485     * @var array
 486     * @access protected
 487     */
 488    protected $cc = array();
 489
 490    /**
 491     * The array of 'bcc' names and addresses.
 492     * @var array
 493     * @access protected
 494     */
 495    protected $bcc = array();
 496
 497    /**
 498     * The array of reply-to names and addresses.
 499     * @var array
 500     * @access protected
 501     */
 502    protected $ReplyTo = array();
 503
 504    /**
 505     * An array of all kinds of addresses.
 506     * Includes all of $to, $cc, $bcc
 507     * @var array
 508     * @access protected
 509     * @see PHPMailer::$to @see PHPMailer::$cc @see PHPMailer::$bcc
 510     */
 511    protected $all_recipients = array();
 512
 513    /**
 514     * An array of names and addresses queued for validation.
 515     * In send(), valid and non duplicate entries are moved to $all_recipients
 516     * and one of $to, $cc, or $bcc.
 517     * This array is used only for addresses with IDN.
 518     * @var array
 519     * @access protected
 520     * @see PHPMailer::$to @see PHPMailer::$cc @see PHPMailer::$bcc
 521     * @see PHPMailer::$all_recipients
 522     */
 523    protected $RecipientsQueue = array();
 524
 525    /**
 526     * An array of reply-to names and addresses queued for validation.
 527     * In send(), valid and non duplicate entries are moved to $ReplyTo.
 528     * This array is used only for addresses with IDN.
 529     * @var array
 530     * @access protected
 531     * @see PHPMailer::$ReplyTo
 532     */
 533    protected $ReplyToQueue = array();
 534
 535    /**
 536     * The array of attachments.
 537     * @var array
 538     * @access protected
 539     */
 540    protected $attachment = array();
 541
 542    /**
 543     * The array of custom headers.
 544     * @var array
 545     * @access protected
 546     */
 547    protected $CustomHeader = array();
 548
 549    /**
 550     * The most recent Message-ID (including angular brackets).
 551     * @var string
 552     * @access protected
 553     */
 554    protected $lastMessageID = '';
 555
 556    /**
 557     * The message's MIME type.
 558     * @var string
 559     * @access protected
 560     */
 561    protected $message_type = '';
 562
 563    /**
 564     * The array of MIME boundary strings.
 565     * @var array
 566     * @access protected
 567     */
 568    protected $boundary = array();
 569
 570    /**
 571     * The array of available languages.
 572     * @var array
 573     * @access protected
 574     */
 575    protected $language = array();
 576
 577    /**
 578     * The number of errors encountered.
 579     * @var integer
 580     * @access protected
 581     */
 582    protected $error_count = 0;
 583
 584    /**
 585     * The S/MIME certificate file path.
 586     * @var string
 587     * @access protected
 588     */
 589    protected $sign_cert_file = '';
 590
 591    /**
 592     * The S/MIME key file path.
 593     * @var string
 594     * @access protected
 595     */
 596    protected $sign_key_file = '';
 597
 598    /**
 599     * The optional S/MIME extra certificates ("CA Chain") file path.
 600     * @var string
 601     * @access protected
 602     */
 603    protected $sign_extracerts_file = '';
 604
 605    /**
 606     * The S/MIME password for the key.
 607     * Used only if the key is encrypted.
 608     * @var string
 609     * @access protected
 610     */
 611    protected $sign_key_pass = '';
 612
 613    /**
 614     * Whether to throw exceptions for errors.
 615     * @var boolean
 616     * @access protected
 617     */
 618    protected $exceptions = false;
 619
 620    /**
 621     * Unique ID used for message ID and boundaries.
 622     * @var string
 623     * @access protected
 624     */
 625    protected $uniqueid = '';
 626
 627    /**
 628     * Error severity: message only, continue processing.
 629     */
 630    const STOP_MESSAGE = 0;
 631
 632    /**
 633     * Error severity: message, likely ok to continue processing.
 634     */
 635    const STOP_CONTINUE = 1;
 636
 637    /**
 638     * Error severity: message, plus full stop, critical error reached.
 639     */
 640    const STOP_CRITICAL = 2;
 641
 642    /**
 643     * SMTP RFC standard line ending.
 644     */
 645    const CRLF = "\r\n";
 646
 647    /**
 648     * The maximum line length allowed by RFC 2822 section 2.1.1
 649     * @var integer
 650     */
 651    const MAX_LINE_LENGTH = 998;
 652
 653    /**
 654     * Constructor.
 655     * @param boolean $exceptions Should we throw external exceptions?
 656     */
 657    public function __construct($exceptions = null)
 658    {
 659        if ($exceptions !== null) {
 660            $this->exceptions = (boolean)$exceptions;
 661        }
 662    }
 663
 664    /**
 665     * Destructor.
 666     */
 667    public function __destruct()
 668    {
 669        //Close any open SMTP connection nicely
 670        $this->smtpClose();
 671    }
 672
 673    /**
 674     * Call mail() in a safe_mode-aware fashion.
 675     * Also, unless sendmail_path points to sendmail (or something that
 676     * claims to be sendmail), don't pass params (not a perfect fix,
 677     * but it will do)
 678     * @param string $to To
 679     * @param string $subject Subject
 680     * @param string $body Message Body
 681     * @param string $header Additional Header(s)
 682     * @param string $params Params
 683     * @access private
 684     * @return boolean
 685     */
 686    private function mailPassthru($to, $subject, $body, $header, $params)
 687    {
 688        //Check overloading of mail function to avoid double-encoding
 689        if (ini_get('mbstring.func_overload') & 1) {
 690            $subject = $this->secureHeader($subject);
 691        } else {
 692            $subject = $this->encodeHeader($this->secureHeader($subject));
 693        }
 694
 695        //Can't use additional_parameters in safe_mode, calling mail() with null params breaks
 696        //@link http://php.net/manual/en/function.mail.php
 697        if (ini_get('safe_mode') or !$this->UseSendmailOptions or is_null($params)) {
 698            $result = @mail($to, $subject, $body, $header);
 699        } else {
 700            $result = @mail($to, $subject, $body, $header, $params);
 701        }
 702        return $result;
 703    }
 704    /**
 705     * Output debugging info via user-defined method.
 706     * Only generates output if SMTP debug output is enabled (@see SMTP::$do_debug).
 707     * @see PHPMailer::$Debugoutput
 708     * @see PHPMailer::$SMTPDebug
 709     * @param string $str
 710     */
 711    protected function edebug($str)
 712    {
 713        if ($this->SMTPDebug <= 0) {
 714            return;
 715        }
 716        //Avoid clash with built-in function names
 717        if (!in_array($this->Debugoutput, array('error_log', 'html', 'echo')) and is_callable($this->Debugoutput)) {
 718            call_user_func($this->Debugoutput, $str, $this->SMTPDebug);
 719            return;
 720        }
 721        switch ($this->Debugoutput) {
 722            case 'error_log':
 723                //Don't output, just log
 724                error_log($str);
 725                break;
 726            case 'html':
 727                //Cleans up output a bit for a better looking, HTML-safe output
 728                echo htmlentities(
 729                        preg_replace('/[\r\n]+/', '', $str),
 730                        ENT_QUOTES,
 731                        'UTF-8'
 732                    )
 733                    . "<br>\n";
 734                break;
 735            case 'echo':
 736            default:
 737                //Normalize line breaks
 738                $str = preg_replace('/\r\n?/ms', "\n", $str);
 739                echo gmdate('Y-m-d H:i:s') . "\t" . str_replace(
 740                        "\n",
 741                        "\n                   \t                  ",
 742                        trim($str)
 743                    ) . "\n";
 744        }
 745    }
 746
 747    /**
 748     * Sets message type to HTML or plain.
 749     * @param boolean $isHtml True for HTML mode.
 750     * @return void
 751     */
 752    public function isHTML($isHtml = true)
 753    {
 754        if ($isHtml) {
 755            $this->ContentType = 'text/html';
 756        } else {
 757            $this->ContentType = 'text/plain';
 758        }
 759    }
 760
 761    /**
 762     * Send messages using SMTP.
 763     * @return void
 764     */
 765    public function isSMTP()
 766    {
 767        $this->Mailer = 'smtp';
 768    }
 769
 770    /**
 771     * Send messages using PHP's mail() function.
 772     * @return void
 773     */
 774    public function isMail()
 775    {
 776        $this->Mailer = 'mail';
 777    }
 778
 779    /**
 780     * Send messages using $Sendmail.
 781     * @return void
 782     */
 783    public function isSendmail()
 784    {
 785        $ini_sendmail_path = ini_get('sendmail_path');
 786
 787        if (!stristr($ini_sendmail_path, 'sendmail')) {
 788            $this->Sendmail = '/usr/sbin/sendmail';
 789        } else {
 790            $this->Sendmail = $ini_sendmail_path;
 791        }
 792        $this->Mailer = 'sendmail';
 793    }
 794
 795    /**
 796     * Send messages using qmail.
 797     * @return void
 798     */
 799    public function isQmail()
 800    {
 801        $ini_sendmail_path = ini_get('sendmail_path');
 802
 803        if (!stristr($ini_sendmail_path, 'qmail')) {
 804            $this->Sendmail = '/var/qmail/bin/qmail-inject';
 805        } else {
 806            $this->Sendmail = $ini_sendmail_path;
 807        }
 808        $this->Mailer = 'qmail';
 809    }
 810
 811    /**
 812     * Add a "To" address.
 813     * @param string $address The email address to send to
 814     * @param string $name
 815     * @return boolean true on success, false if address already used or invalid in some way
 816     */
 817    public function addAddress($address, $name = '')
 818    {
 819        return $this->addOrEnqueueAnAddress('to', $address, $name);
 820    }
 821
 822    /**
 823     * Add a "CC" address.
 824     * @note: This function works with the SMTP mailer on win32, not with the "mail" mailer.
 825     * @param string $address The email address to send to
 826     * @param string $name
 827     * @return boolean true on success, false if address already used or invalid in some way
 828     */
 829    public function addCC($address, $name = '')
 830    {
 831        return $this->addOrEnqueueAnAddress('cc', $address, $name);
 832    }
 833
 834    /**
 835     * Add a "BCC" address.
 836     * @note: This function works with the SMTP mailer on win32, not with the "mail" mailer.
 837     * @param string $address The email address to send to
 838     * @param string $name
 839     * @return boolean true on success, false if address already used or invalid in some way
 840     */
 841    public function addBCC($address, $name = '')
 842    {
 843        return $this->addOrEnqueueAnAddress('bcc', $address, $name);
 844    }
 845
 846    /**
 847     * Add a "Reply-To" address.
 848     * @param string $address The email address to reply to
 849     * @param string $name
 850     * @return boolean true on success, false if address already used or invalid in some way
 851     */
 852    public function addReplyTo($address, $name = '')
 853    {
 854        return $this->addOrEnqueueAnAddress('Reply-To', $address, $name);
 855    }
 856
 857    /**
 858     * Add an address to one of the recipient arrays or to the ReplyTo array. Because PHPMailer
 859     * can't validate addresses with an IDN without knowing the PHPMailer::$CharSet (that can still
 860     * be modified after calling this function), addition of such addresses is delayed until send().
 861     * Addresses that have been added already return false, but do not throw exceptions.
 862     * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo'
 863     * @param string $address The email address to send, resp. to reply to
 864     * @param string $name
 865     * @throws phpmailerException
 866     * @return boolean true on success, false if address already used or invalid in some way
 867     * @access protected
 868     */
 869    protected function addOrEnqueueAnAddress($kind, $address, $name)
 870    {
 871        $address = trim($address);
 872        $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
 873        if (($pos = strrpos($address, '@')) === false) {
 874            // At-sign is misssing.
 875            $error_message = $this->lang('invalid_address') . " (addAnAddress $kind): $address";
 876            $this->setError($error_message);
 877            $this->edebug($error_message);
 878            if ($this->exceptions) {
 879                throw new phpmailerException($error_message);
 880            }
 881            return false;
 882        }
 883        $params = array($kind, $address, $name);
 884        // Enqueue addresses with IDN until we know the PHPMailer::$CharSet.
 885        if ($this->has8bitChars(substr($address, ++$pos)) and $this->idnSupported()) {
 886            if ($kind != 'Reply-To') {
 887                if (!array_key_exists($address, $this->RecipientsQueue)) {
 888                    $this->RecipientsQueue[$address] = $params;
 889                    return true;
 890                }
 891            } else {
 892                if (!array_key_exists($address, $this->ReplyToQueue)) {
 893                    $this->ReplyToQueue[$address] = $params;
 894                    return true;
 895                }
 896            }
 897            return false;
 898        }
 899        // Immediately add standard addresses without IDN.
 900        return call_user_func_array(array($this, 'addAnAddress'), $params);
 901    }
 902
 903    /**
 904     * Add an address to one of the recipient arrays or to the ReplyTo array.
 905     * Addresses that have been added already return false, but do not throw exceptions.
 906     * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo'
 907     * @param string $address The email address to send, resp. to reply to
 908     * @param string $name
 909     * @throws phpmailerException
 910     * @return boolean true on success, false if address already used or invalid in some way
 911     * @access protected
 912     */
 913    protected function addAnAddress($kind, $address, $name = '')
 914    {
 915        if (!in_array($kind, array('to', 'cc', 'bcc', 'Reply-To'))) {
 916            $error_message = $this->lang('Invalid recipient kind: ') . $kind;
 917            $this->setError($error_message);
 918            $this->edebug($error_message);
 919            if ($this->exceptions) {
 920                throw new phpmailerException($error_message);
 921            }
 922            return false;
 923        }
 924        if (!$this->validateAddress($address)) {
 925            $error_message = $this->lang('invalid_address') . " (addAnAddress $kind): $address";
 926            $this->setError($error_message);
 927            $this->edebug($error_message);
 928            if ($this->exceptions) {
 929                throw new phpmailerException($error_message);
 930            }
 931            return false;
 932        }
 933        if ($kind != 'Reply-To') {
 934            if (!array_key_exists(strtolower($address), $this->all_recipients)) {
 935                array_push($this->$kind, array($address, $name));
 936                $this->all_recipients[strtolower($address)] = true;
 937                return true;
 938            }
 939        } else {
 940            if (!array_key_exists(strtolower($address), $this->ReplyTo)) {
 941                $this->ReplyTo[strtolower($address)] = array($address, $name);
 942                return true;
 943            }
 944        }
 945        return false;
 946    }
 947
 948    /**
 949     * Parse and validate a string containing one or more RFC822-style comma-separated email addresses
 950     * of the form "display name <address>" into an array of name/address pairs.
 951     * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available.
 952     * Note that quotes in the name part are removed.
 953     * @param string $addrstr The address list string
 954     * @param bool $useimap Whether to use the IMAP extension to parse the list
 955     * @return array
 956     * @link http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
 957     */
 958    public function parseAddresses($addrstr, $useimap = true)
 959    {
 960        $addresses = array();
 961        if ($useimap and function_exists('imap_rfc822_parse_adrlist')) {
 962            //Use this built-in parser if it's available
 963            $list = imap_rfc822_parse_adrlist($addrstr, '');
 964            foreach ($list as $address) {
 965                if ($address->host != '.SYNTAX-ERROR.') {
 966                    if ($this->validateAddress($address->mailbox . '@' . $address->host)) {
 967                        $addresses[] = array(
 968                            'name' => (property_exists($address, 'personal') ? $address->personal : ''),
 969                            'address' => $address->mailbox . '@' . $address->host
 970                        );
 971                    }
 972                }
 973            }
 974        } else {
 975            //Use this simpler parser
 976            $list = explode(',', $addrstr);
 977            foreach ($list as $address) {
 978                $address = trim($address);
 979                //Is there a separate name part?
 980                if (strpos($address, '<') === false) {
 981                    //No separate name, just use the whole thing
 982                    if ($this->validateAddress($address)) {
 983                        $addresses[] = array(
 984                            'name' => '',
 985                            'address' => $address
 986                        );
 987                    }
 988                } else {
 989                    list($name, $email) = explode('<', $address);
 990                    $email = trim(str_replace('>', '', $email));
 991                    if ($this->validateAddress($email)) {
 992                        $addresses[] = array(
 993                            'name' => trim(str_replace(array('"', "'"), '', $name)),
 994                            'address' => $email
 995                        );
 996                    }
 997                }
 998            }
 999        }
1000        return $addresses;
1001    }
1002
1003    /**
1004     * Set the From and FromName properties.
1005     * @param string $address
1006     * @param string $name
1007     * @param boolean $auto Whether to also set the Sender address, defaults to true
1008     * @throws phpmailerException
1009     * @return boolean
1010     */
1011    public function setFrom($address, $name = '', $auto = true)
1012    {
1013        $address = trim($address);
1014        $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
1015        // Don't validate now addresses with IDN. Will be done in send().
1016        if (($pos = strrpos($address, '@')) === false or
1017            (!$this->has8bitChars(substr($address, ++$pos)) or !$this->idnSupported()) and
1018            !$this->validateAddress($address)) {
1019            $error_message = $this->lang('invalid_address') . " (setFrom) $address";
1020            $this->setError($error_message);
1021            $this->edebug($error_message);
1022            if ($this->exceptions) {
1023                throw new phpmailerException($error_message);
1024            }
1025            return false;
1026        }
1027        $this->From = $address;
1028        $this->FromName = $name;
1029        if ($auto) {
1030            if (empty($this->Sender)) {
1031                $this->Sender = $address;
1032            }
1033        }
1034        return true;
1035    }
1036
1037    /**
1038     * Return the Message-ID header of the last email.
1039     * Technically this is the value from the last time the headers were created,
1040     * but it's also the message ID of the last sent message except in
1041     * pathological cases.
1042     * @return string
1043     */
1044    public function getLastMessageID()
1045    {
1046        return $this->lastMessageID;
1047    }
1048
1049    /**
1050     * Check that a string looks like an email address.
1051     * @param string $address The email address to check
1052     * @param string|callable $patternselect A selector for the validation pattern to use :
1053     * * `auto` Pick best pattern automatically;
1054     * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0, PHP >= 5.3.2, 5.2.14;
1055     * * `pcre` Use old PCRE implementation;
1056     * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL;
1057     * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements.
1058     * * `noregex` Don't use a regex: super fast, really dumb.
1059     * Alternatively you may pass in a callable to inject your own validator, for example:
1060     * PHPMailer::validateAddress('user@example.com', function($address) {
1061     *     return (strpos($address, '@') !== false);
1062     * });
1063     * You can also set the PHPMailer::$validator static to a callable, allowing built-in methods to use your validator.
1064     * @return boolean
1065     * @static
1066     * @access public
1067     */
1068    public static function validateAddress($address, $patternselect = null)
1069    {
1070        if (is_null($patternselect)) {
1071            $patternselect = self::$validator;
1072        }
1073        if (is_callable($patternselect)) {
1074            return call_user_func($patternselect, $address);
1075        }
1076        //Reject line breaks in addresses; it's valid RFC5322, but not RFC5321
1077        if (strpos($address, "\n") !== false or strpos($address, "\r") !== false) {
1078            return false;
1079        }
1080        if (!$patternselect or $patternselect == 'auto') {
1081            //Check this constant first so it works when extension_loaded() is disabled by safe mode
1082            //Constant was added in PHP 5.2.4
1083            if (defined('PCRE_VERSION')) {
1084                //This pattern can get stuck in a recursive loop in PCRE <= 8.0.2
1085                if (version_compare(PCRE_VERSION, '8.0.3') >= 0) {
1086                    $patternselect = 'pcre8';
1087                } else {
1088                    $patternselect = 'pcre';
1089                }
1090            } elseif (function_exists('extension_loaded') and extension_loaded('pcre')) {
1091                //Fall back to older PCRE
1092                $patternselect = 'pcre';
1093            } else {
1094                //Filter_var appeared in PHP 5.2.0 and does not require the PCRE extension
1095                if (version_compare(PHP_VERSION, '5.2.0') >= 0) {
1096                    $patternselect = 'php';
1097                } else {
1098                    $patternselect = 'noregex';
1099                }
1100            }
1101        }
1102        switch ($patternselect) {
1103            case 'pcre8':
1104                /**
1105                 * Uses the same RFC5322 regex on which FILTER_VALIDATE_EMAIL is based, but allows dotless domains.
1106                 * @link http://squiloople.com/2009/12/20/email-address-validation/
1107                 * @copyright 2009-2010 Michael Rushton
1108                 * Feel free to use and redistribute this code. But please keep this copyright notice.
1109                 */
1110                return (boolean)preg_match(
1111                    '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' .
1112                    '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' .
1113                    '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' .
1114                    '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' .
1115                    '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' .
1116                    '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' .
1117                    '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' .
1118                    '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' .
1119                    '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD',
1120                    $address
1121                );
1122            case 'pcre':
1123                //An older regex that doesn't need a recent PCRE
1124                return (boolean)preg_match(
1125                    '/^(?!(?>"?(?>\\\[ -~]|[^"])"?){255,})(?!(?>"?(?>\\\[ -~]|[^"])"?){65,}@)(?>' .
1126                    '[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*")' .
1127                    '(?>\.(?>[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*"))*' .
1128                    '@(?>(?![a-z0-9-]{64,})(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)(?>\.(?![a-z0-9-]{64,})' .
1129                    '(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)){0,126}|\[(?:(?>IPv6:(?>(?>[a-f0-9]{1,4})(?>:' .
1130                    '[a-f0-9]{1,4}){7}|(?!(?:.*[a-f0-9][:\]]){8,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?' .
1131                    '::(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?))|(?>(?>IPv6:(?>[a-f0-9]{1,4}(?>:' .
1132                    '[a-f0-9]{1,4}){5}:|(?!(?:.*[a-f0-9]:){6,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4})?' .
1133                    '::(?>(?:[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4}):)?))?(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}' .
1134                    '|[1-9]?[0-9])(?>\.(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}))\])$/isD',
1135                    $address
1136                );
1137            case 'html5':
1138                /**
1139                 * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements.
1140                 * @link http://www.whatwg.org/specs/web-apps/current-work/#e-mail-state-(type=email)
1141                 */
1142                return (boolean)preg_match(
1143                    '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}' .
1144                    '[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/sD',
1145                    $address
1146                );
1147            case 'noregex':
1148                //No PCRE! Do something _very_ approximate!
1149                //Check the address is 3 chars or longer and contains an @ that's not the first or last char
1150                return (strlen($address) >= 3
1151                    and strpos($address, '@') >= 1
1152                    and strpos($address, '@') != strlen($address) - 1);
1153            case 'php':
1154            default:
1155                return (boolean)filter_var($address, FILTER_VALIDATE_EMAIL);
1156        }
1157    }
1158
1159    /**
1160     * Tells whether IDNs (Internationalized Domain Names) are supported or not. This requires the
1161     * "intl" and "mbstring" PHP extensions.
1162     * @return bool "true" if required functions for IDN support are present
1163     */
1164    public function idnSupported()
1165    {
1166        // @TODO: Write our own "idn_to_ascii" function for PHP <= 5.2.
1167        return function_exists('idn_to_ascii') and function_exists('mb_convert_encoding');
1168    }
1169
1170    /**
1171     * Converts IDN in given email address to its ASCII form, also known as punycode, if possible.
1172     * Important: Address must be passed in same encoding as currently set in PHPMailer::$CharSet.
1173     * This function silently returns unmodified address if:
1174     * - No conversion is necessary (i.e. domain name is not an IDN, or is already in ASCII form)
1175     * - Conversion to punycode is impossible (e.g. required PHP functions are not available)
1176     *   or fails for any reason (e.g. domain has characters not allowed in an IDN)
1177     * @see PHPMailer::$CharSet
1178     * @param string $address The email address to convert
1179     * @return string The encoded address in ASCII form
1180     */
1181    public function punyencodeAddress($address)
1182    {
1183        // Verify we have required functions, CharSet, and at-sign.
1184        if ($this->idnSupported() and
1185            !empty($this->CharSet) and
1186            ($pos = strrpos($address, '@')) !== false) {
1187            $domain = substr($address, ++$pos);
1188            // Verify CharSet string is a valid one, and domain properly encoded in this CharSet.
1189            if ($this->has8bitChars($domain) and @mb_check_encoding($domain, $this->CharSet)) {
1190                $domain = mb_convert_encoding($domain, 'UTF-8', $this->CharSet);
1191                if (($punycode = defined('INTL_IDNA_VARIANT_UTS46') ?
1192                        idn_to_ascii($domain, 0, INTL_IDNA_VARIANT_UTS46) :
1193                        idn_to_ascii($domain)) !== false) {
1194                    return substr($address, 0, $pos) . $punycode;
1195                }
1196            }
1197        }
1198        return $address;
1199    }
1200
1201    /**
1202     * Create a message and send it.
1203     * Uses the sending method specified by $Mailer.
1204     * @throws phpmailerException
1205     * @return boolean false on error - See the ErrorInfo property for details of the error.
1206     */
1207    public function send()
1208    {
1209        try {
1210            if (!$this->preSend()) {
1211                return false;
1212            }
1213            return $this->postSend();
1214        } catch (phpmailerException $exc) {
1215            $this->mailHeader = '';
1216            $this->setError($exc->getMessage());
1217            if ($this->exceptions) {
1218                throw $exc;
1219            }
1220            return false;
1221        }
1222    }
1223
1224    /**
1225     * Prepare a message for sending.
1226     * @throws phpmailerException
1227     * @return boolean
1228     */
1229    public function preSend()
1230    {
1231        try {
1232            $this->error_count = 0; // Reset errors
1233            $this->mailHeader = '';
1234
1235            // Dequeue recipient and Reply-To addresses with IDN
1236            foreach (array_merge($this->RecipientsQueue, $this->ReplyToQueue) as $params) {
1237                $params[1] = $this->punyencodeAddress($params[1]);
1238                call_user_func_array(array($this, 'addAnAddress'), $params);
1239            }
1240            if ((count($this->to) + count($this->cc) + count($this->bcc)) < 1) {
1241                throw new phpmailerException($this->lang('provide_address'), self::STOP_CRITICAL);
1242            }
1243
1244            // Validate From, Sender, and ConfirmReadingTo addresses
1245            foreach (array('From', 'Sender', 'ConfirmReadingTo') as $address_kind) {
1246                $this->$address_kind = trim($this->$address_kind);
1247                if (empty($this->$address_kind)) {
1248                    continue;
1249                }
1250                $this->$address_kind = $this->punyencodeAddress($this->$address_kind);
1251                if (!$this->validateAddress($this->$address_kind)) {
1252                    $error_message = $this->lang('invalid_address') . ' (punyEncode) ' . $this->$address_kind;
1253                    $this->setError($error_message);
1254                    $this->edebug($error_message);
1255                    if ($this->exceptions) {
1256                        throw new phpmailerException($error_message);
1257                    }
1258                    return false;
1259                }
1260            }
1261
1262            // Set whether the message is multipart/alternative
1263            if ($this->alternativeExists()) {
1264                $this->ContentType = 'multipart/alternative';
1265            }
1266
1267            $this->setMessageType();
1268            // Refuse to send an empty message unless we are specifically allowing it
1269            if (!$this->AllowEmpty and empty($this->Body)) {
1270                throw new phpmailerException($this->lang('empty_message'), self::STOP_CRITICAL);
1271            }
1272
1273            // Create body before headers in case body makes changes to headers (e.g. altering transfer encoding)
1274            $this->MIMEHeader = '';
1275            $this->MIMEBody = $this->createBody();
1276            // createBody may have added some headers, so retain them
1277            $tempheaders = $this->MIMEHeader;
1278            $this->MIMEHeader = $this->createHeader();
1279            $this->MIMEHeader .= $tempheaders;
1280
1281            // To capture the complete message when using mail(), create
1282            // an extra header list which createHeader() doesn't fold in
1283            if ($this->Mailer == 'mail') {
1284                if (count($this->to) > 0) {
1285                    $this->mailHeader .= $this->addrAppend('To', $this->to);
1286                } else {
1287                    $this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;');
1288                }
1289                $this->mailHeader .= $this->headerLine(
1290                    'Subject',
1291                    $this->encodeHeader($this->secureHeader(trim($this->Subject)))
1292                );
1293            }
1294
1295            // Sign with DKIM if enabled
1296            if (!empty($this->DKIM_domain)
1297                && !empty($this->DKIM_selector)
1298                && (!empty($this->DKIM_private_string)
1299                    || (!empty($this->DKIM_private) && file_exists($this->DKIM_private))
1300                )
1301            ) {
1302                $header_dkim = $this->DKIM_Add(
1303                    $this->MIMEHeader . $this->mailHeader,
1304                    $this->encodeHeader($this->secureHeader($this->Subject)),
1305                    $this->MIMEBody
1306                );
1307                $this->MIMEHeader = rtrim($this->MIMEHeader, "\r\n ") . self::CRLF .
1308                    str_replace("\r\n", "\n", $header_dkim) . self::CRLF;
1309            }
1310            return true;
1311        } catch (phpmailerException $exc) {
1312            $this->setError($exc->getMessage());
1313            if ($this->exceptions) {
1314                throw $exc;
1315            }
1316            return false;
1317        }
1318    }
1319
1320    /**
1321     * Actually send a message.
1322     * Send the email via the selected mechanism
1323     * @throws phpmailerException
1324     * @return boolean
1325     */
1326    public function postSend()
1327    {
1328        try {
1329            // Choose the mailer and send through it
1330            switch ($this->Mailer) {
1331                case 'sendmail':
1332                case 'qmail':
1333                    return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody);
1334                case 'smtp':
1335                    return $this->smtpSend($this->MIMEHeader, $this->MIMEBody);
1336                case 'mail':
1337                    return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
1338                default:
1339                    $sendMethod = $this->Mailer.'Send';
1340                    if (method_exists($this, $sendMethod)) {
1341                        return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody);
1342                    }
1343
1344                    return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
1345            }
1346        } catch (phpmailerException $exc) {
1347            $this->setError($exc->getMessage());
1348            $this->edebug($exc->getMessage());
1349            if ($this->exceptions) {
1350                throw $exc;
1351            }
1352        }
1353        return false;
1354    }
1355
1356    /**
1357     * Send mail using the $Sendmail program.
1358     * @param string $header The message headers
1359     * @param string $body The message body
1360     * @see PHPMailer::$Sendmail
1361     * @throws phpmailerException
1362     * @access protected
1363     * @return boolean
1364     */
1365    protected function sendmailSend($header, $body)
1366    {
1367        // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
1368        if (!empty($this->Sender) and self::isShellSafe($this->Sender)) {
1369            if ($this->Mailer == 'qmail') {
1370                $sendmailFmt = '%s -f%s';
1371            } else {
1372                $sendmailFmt = '%s -oi -f%s -t';
1373            }
1374        } else {
1375            if ($this->Mailer == 'qmail') {
1376                $sendmailFmt = '%s';
1377            } else {
1378                $sendmailFmt = '%s -oi -t';
1379            }
1380        }
1381
1382        // TODO: If possible, this should be changed to escapeshellarg.  Needs thorough testing.
1383        $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender);
1384
1385        if ($this->SingleTo) {
1386            foreach ($this->SingleToArray as $toAddr) {
1387                if (!@$mail = popen($sendmail, 'w')) {
1388                    throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
1389                }
1390                fputs($mail, 'To: ' . $toAddr . "\n");
1391                fputs($mail, $header);
1392                fputs($mail, $body);
1393                $result = pclose($mail);
1394                $this->doCallback(
1395                    ($result == 0),
1396                    array($toAddr),
1397                    $this->cc,
1398                    $this->bcc,
1399                    $this->Subject,
1400                    $body,
1401                    $this->From
1402                );
1403                if ($result != 0) {
1404                    throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
1405                }
1406            }
1407        } else {
1408            if (!@$mail = popen($sendmail, 'w')) {
1409                throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
1410            }
1411            fputs($mail, $header);
1412            fputs($mail, $body);
1413            $result = pclose($mail);
1414            $this->doCallback(
1415                ($result == 0),
1416                $this->to,
1417                $this->cc,
1418                $this->bcc,
1419                $this->Subject,
1420                $body,
1421                $this->From
1422            );
1423            if ($result != 0) {
1424                throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
1425            }
1426        }
1427        return true;
1428    }
1429
1430    /**
1431     * Fix CVE-2016-10033 and CVE-2016-10045 by disallowing potentially unsafe shell characters.
1432     *
1433     * Note that escapeshellarg and escapeshellcmd are inadequate for our purposes, especially on Windows.
1434     * @param string $string The string to be validated
1435     * @see https://github.com/PHPMailer/PHPMailer/issues/924 CVE-2016-10045 bug report
1436     * @access protected
1437     * @return boolean
1438     */
1439    protected static function isShellSafe($string)
1440    {
1441        // Future-proof
1442        if (escapeshellcmd($string) !== $string
1443            or !in_array(escapeshellarg($string), array("'$string'", "\"$string\""))
1444        ) {
1445            return false;
1446        }
1447
1448        $length = strlen($string);
1449
1450        for ($i = 0; $i < $length; $i++) {
1451            $c = $string[$i];
1452
1453            // All other characters have a special meaning in at least one common shell, including = and +.
1454            // Full stop (.) has a special meaning in cmd.exe, but its impact should be negligible here.
1455            // Note that this does permit non-Latin alphanumeric characters based on the current locale.
1456            if (!ctype_alnum($c) && strpos('@_-.', $c) === false) {
1457                return false;
1458            }
1459        }
1460
1461        return true;
1462    }
1463
1464    /**
1465     * Send mail using the PHP mail() function.
1466     * @param string $header The message headers
1467     * @param string $body The message body
1468     * @link http://www.php.net/manual/en/book.mail.php
1469     * @throws phpmailerException
1470     * @access protected
1471     * @return boolean
1472     */
1473    protected function mailSend($header, $body)
1474    {
1475        $toArr = array();
1476        foreach ($this->to as $toaddr) {
1477            $toArr[] = $this->addrFormat($toaddr);
1478        }
1479        $to = implode(', ', $toArr);
1480
1481        $params = null;
1482        //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
1483        if (!empty($this->Sender) and $this->validateAddress($this->Sender)) {
1484            // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
1485            if (self::isShellSafe($this->Sender)) {
1486                $params = sprintf('-f%s', $this->Sender);
1487            }
1488        }
1489        if (!empty($this->Sender) and !ini_get('safe_mode') and $this->validateAddress($this->Sender)) {
1490            $old_from = ini_get('sendmail_from');
1491            ini_set('sendmail_from', $this->Sender);
1492        }
1493        $result = false;
1494        if ($this->SingleTo and count($toArr) > 1) {
1495            foreach ($toArr as $toAddr) {
1496                $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params);
1497                $this->doCallback($result, array($toAddr), $this->cc, $this->bcc, $this->Subject, $body, $this->From);
1498            }
1499        } else {
1500            $result = $this->mailPassthru($to, $this->Subject, $body, $header, $params);
1501            $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From);
1502        }
1503        if (isset($old_from)) {
1504            ini_set('sendmail_from', $old_from);
1505        }
1506        if (!$result) {
1507            throw new phpmailerException($this->lang('instantiate'), self::STOP_CRITICAL);
1508        }
1509        return true;
1510    }
1511
1512    /**
1513     * Get an instance to use for SMTP operations.
1514     * Override this function to load your own SMTP implementation
1515     * @return SMTP
1516     */
1517    public function getSMTPInstance()
1518    {
1519        if (!is_object($this->smtp)) {
1520            $this->smtp = new SMTP;
1521        }
1522        return $this->smtp;
1523    }
1524
1525    /**
1526     * Send mail via SMTP.
1527     * Returns false if there is a bad MAIL FROM, RCPT, or DATA input.
1528     * Uses the PHPMailerSMTP class by default.
1529     * @see PHPMailer::getSMTPInstance() to use a different class.
1530     * @param string $header The message headers
1531     * @param string $body The message body
1532     * @throws phpmailerException
1533     * @uses SMTP
1534     * @access protected
1535     * @return boolean
1536     */
1537    protected function smtpSend($header, $body)
1538    {
1539        $bad_rcpt = array();
1540        if (!$this->smtpConnect($this->SMTPOptions)) {
1541            throw new phpmailerException($this->lang('smtp_connect_failed'), self::STOP_CRITICAL);
1542        }
1543        if (!empty($this->Sender) and $this->validateAddress($this->Sender)) {
1544            $smtp_from = $this->Sender;
1545        } else {
1546            $smtp_from = $this->From;
1547        }
1548        if (!$this->smtp->mail($smtp_from)) {
1549            $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError()));
1550            throw new phpmailerException($this->ErrorInfo, self::STOP_CRITICAL);
1551        }
1552
1553        // Attempt to send to all recipients
1554        foreach (array($this->to, $this->cc, $this->bcc) as $togroup) {
1555            foreach ($togroup as $to) {
1556                if (!$this->smtp->recipient($to[0])) {
1557                    $error = $this->smtp->getError();
1558                    $bad_rcpt[] = array('to' => $to[0], 'error' => $error['detail']);
1559                    $isSent = false;
1560                } else {
1561                    $isSent = true;
1562                }
1563                $this->doCallback($isSent, array($to[0]), array(), array(), $this->Subject, $body, $this->From);
1564            }
1565        }
1566
1567        // Only send the DATA command if we have viable recipients
1568        if ((count($this->all_recipients) > count($bad_rcpt)) and !$this->smtp->data($header . $body)) {
1569            throw new phpmailerException($this->lang('data_not_accepted'), self::STOP_CRITICAL);
1570        }
1571        if ($this->SMTPKeepAlive) {
1572            $this->smtp->reset();
1573        } else {
1574            $this->smtp->quit();
1575            $this->smtp->close();
1576        }
1577        //Create error message for any bad addresses
1578        if (count($bad_rcpt) > 0) {
1579            $errstr = '';
1580            foreach ($bad_rcpt as $bad) {
1581                $errstr .= $bad['to'] . ': ' . $bad['error'];
1582            }
1583            throw new phpmailerException(
1584                $this->lang('recipients_failed') . $errstr,
1585                self::STOP_CONTINUE
1586            );
1587        }
1588        return true;
1589    }
1590
1591    /**
1592     * Initiate a connection to an SMTP server.
1593     * Returns false if the operation failed.
1594     * @param array $options An array of options compatible with stream_context_create()
1595     * @uses SMTP
1596     * @access public
1597     * @throws phpmailerException
1598     * @return boolean
1599     */
1600    public function smtpConnect($options = null)
1601    {
1602        if (is_null($this->smtp)) {
1603            $this->smtp = $this->getSMTPInstance();
1604        }
1605
1606        //If no options are provided, use whatever is set in the instance
1607        if (is_null($options)) {
1608            $options = $this->SMTPOptions;
1609        }
1610
1611        // Already connected?
1612        if ($this->smtp->connected()) {
1613            return true;
1614        }
1615
1616        $this->smtp->setTimeout($this->Timeout);
1617        $this->smtp->setDebugLevel($this->SMTPDebug);
1618        $this->smtp->setDebugOutput($this->Debugoutput);
1619        $this->smtp->setVerp($this->do_verp);
1620        $hosts = explode(';', $this->Host);
1621        $lastexception = null;
1622
1623        foreach ($hosts as $hostentry) {
1624            $hostinfo = array();
1625            if (!preg_match('/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*):?([0-9]*)$/', trim($hostentry), $hostinfo)) {
1626                // Not a valid host entry
1627                continue;
1628            }
1629            // $hostinfo[2]: optional ssl or tls prefix
1630            // $hostinfo[3]: the hostname
1631            // $hostinfo[4]: optional port number
1632            // The host string prefix can temporarily override the current setting for SMTPSecure
1633            // If it's not specified, the default value is used
1634            $prefix = '';
1635            $secure = $this->SMTPSecure;
1636            $tls = ($this->SMTPSecure == 'tls');
1637            if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) {
1638                $prefix = 'ssl://';
1639                $tls = false; // Can't have SSL and TLS at the same time
1640                $secure = 'ssl';
1641            } elseif ($hostinfo[2] == 'tls') {
1642                $tls = true;
1643                // tls doesn't use a prefix
1644                $secure = 'tls';
1645            }
1646            //Do we need the OpenSSL extension?
1647            $sslext = defined('OPENSSL_ALGO_SHA1');
1648            if ('tls' === $secure or 'ssl' === $secure) {
1649                //Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled
1650                if (!$sslext) {
1651                    throw new phpmailerException($this->lang('extension_missing').'openssl', self::STOP_CRITICAL);
1652                }
1653            }
1654            $host = $hostinfo[3];
1655            $port = $this->Port;
1656            $tport = (integer)$hostinfo[4];
1657            if ($tport > 0 and $tport < 65536) {
1658                $port = $tport;
1659            }
1660            if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) {
1661                try {
1662                    if ($this->Helo) {
1663                        $hello = $this->Helo;
1664                    } else {
1665                        $hello = $this->serverHostname();
1666                    }
1667                    $this->smtp->hello($hello);
1668                    //Automatically enable TLS encryption if:
1669                    // * it's not disabled
1670                    // * we have openssl extension
1671                    // * we are not already using SSL
1672                    // * the server offers STARTTLS
1673                    if ($this->SMTPAutoTLS and $sslext and $secure != 'ssl' and $this->smtp->getServerExt('STARTTLS')) {
1674                        $tls = true;
1675                    }
1676                    if ($tls) {
1677                        if (!$this->smtp->startTLS()) {
1678                            throw new phpmailerException($this->lang('connect_host'));
1679                        }
1680                        // We must resend EHLO after TLS negotiation
1681                        $this->smtp->hello($hello);
1682                    }
1683                    if ($this->SMTPAuth) {
1684                        if (!$this->smtp->authenticate(
1685                            $this->Username,
1686                            $this->Password,
1687                            $this->AuthType,
1688                            $this->Realm,
1689                            $this->Workstation
1690                        )
1691                        ) {
1692                            throw new phpmailerException($this->lang('authenticate'));
1693                        }
1694                    }
1695                    return true;
1696                } catch (phpmailerException $exc) {
1697                    $lastexception = $exc;
1698                    $this->edebug($exc->getMessage());
1699                    // We must have connected, but then failed TLS or Auth, so close connection nicely
1700                    $this->smtp->quit();
1701                }
1702            }
1703        }
1704        // If we get here, all connection attempts have failed, so close connection hard
1705        $this->smtp->close();
1706        // As we've caught all exceptions, just report whatever the last one was
1707        if ($this->exceptions and !is_null($lastexception)) {
1708            throw $lastexception;
1709        }
1710        return false;
1711    }
1712
1713    /**
1714     * Close the active SMTP session if one exists.
1715     * @return void
1716     */
1717    public function smtpClose()
1718    {
1719        if (is_a($this->smtp, 'SMTP')) {
1720            if ($this->smtp->connected()) {
1721                $this->smtp->quit();
1722                $this->smtp->close();
1723            }
1724        }
1725    }
1726
1727    /**
1728     * Set the language for error messages.
1729     * Returns false if it cannot load the language file.
1730     * The default language is English.
1731     * @param string $langcode ISO 639-1 2-character language code (e.g. French is "fr")
1732     * @param string $lang_path Path to the language file directory, with trailing separator (slash)
1733     * @return boolean
1734     * @access public
1735     */
1736    public function setLanguage($langcode = 'en', $lang_path = '')
1737    {
1738        // Backwards compatibility for renamed language codes
1739        $renamed_langcodes = array(
1740            'br' => 'pt_br',
1741            'cz' => 'cs',
1742            'dk' => 'da',
1743            'no' => 'nb',
1744            'se' => 'sv',
1745        );
1746
1747        if (isset($renamed_langcodes[$langcode])) {
1748            $langcode = $renamed_langcodes[$langcode];
1749        }
1750
1751        // Define full set of translatable strings in English
1752        $PHPMAILER_LANG = array(
1753            'authenticate' => 'SMTP Error: Could not authenticate.',
1754            'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
1755            'data_not_accepted' => 'SMTP Error: data not accepted.',
1756            'empty_message' => 'Message body empty',
1757            'encoding' => 'Unknown encoding: ',
1758            'execute' => 'Could not execute: ',
1759            'file_access' => 'Could not access file: ',
1760            'file_open' => 'File Error: Could not open file: ',
1761            'from_failed' => 'The following From address failed: ',
1762            'instantiate' => 'Could not instantiate mail function.',
1763            'invalid_address' => 'Invalid address: ',
1764            'mailer_not_supported' => ' mailer is not supported.',
1765            'provide_address' => 'You must provide at least one recipient email address.',
1766            'recipients_failed' => 'SMTP Error: The following recipients failed: ',
1767            'signing' => 'Signing Error: ',
1768            'smtp_connect_failed' => 'SMTP connect() failed.',
1769            'smtp_error' => 'SMTP server error: ',
1770            'variable_set' => 'Cannot set or reset variable: ',
1771            'extension_missing' => 'Extension missing: '
1772        );
1773        if (empty($lang_path)) {
1774            // Calculate an absolute path so it can work if CWD is not here
1775            $lang_path = dirname(__FILE__). DIRECTORY_SEPARATOR . 'language'. DIRECTORY_SEPARATOR;
1776        }
1777        //Validate $langcode
1778        if (!preg_match('/^[a-z]{2}(?:_[a-zA-Z]{2})?$/', $langcode)) {
1779            $langcode = 'en';
1780        }
1781        $foundlang = true;
1782        $lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php';
1783        // There is no English translation file
1784        if ($langcode != 'en') {
1785            // Make sure language file path is readable
1786            if (!is_readable($lang_file)) {
1787                $foundlang = false;
1788            } else {
1789                // Overwrite language-specific strings.
1790                // This way we'll never have missing translation keys.
1791                $foundlang = include $lang_file;
1792            }
1793        }
1794        $this->language = $PHPMAILER_LANG;
1795        return (boolean)$foundlang; // Returns false if language not found
1796    }
1797
1798    /**
1799     * Get the array of strings for the current language.
1800     * @return array
1801     */
1802    public function getTranslations()
1803    {
1804        return $this->language;
1805    }
1806
1807    /**
1808     * Create recipient headers.
1809     * @access public
1810     * @param string $type
1811     * @param array $addr An array of recipient,
1812     * where each recipient is a 2-element indexed array with element 0 containing an address
1813     * and element 1 containing a name, like:
1814     * array(array('joe@example.com', 'Joe User'), array('zoe@example.com', 'Zoe User'))
1815     * @return string
1816     */
1817    public function addrAppend($type, $addr)
1818    {
1819        $addresses = array();
1820        foreach ($addr as $address) {
1821            $addresses[] = $this->addrFormat($address);
1822        }
1823        return $type . ': ' . implode(', ', $addresses) . $this->LE;
1824    }
1825
1826    /**
1827     * Format an address for use in a message header.
1828     * @access public
1829     * @param array $addr A 2-element indexed array, element 0 containing an address, element 1 containing a name
1830     *      like array('joe@example.com', 'Joe User')
1831     * @return string
1832     */
1833    public function addrFormat($addr)
1834    {
1835        if (empty($addr[1])) { // No name provided
1836            return $this->secureHeader($addr[0]);
1837        } else {
1838            return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . ' <' . $this->secureHeader(
1839                $addr[0]
1840            ) . '>';
1841        }
1842    }
1843
1844    /**
1845     * Word-wrap message.
1846     * For use with mailers that do not automatically perform wrapping
1847     * and for quoted-printable encoded messages.
1848     * Original written by philippe.
1849     * @param string $message The message to wrap
1850     * @param integer $length The line length to wrap to
1851     * @param boolean $qp_mode Whether to run in Quoted-Printable mode
1852     * @access public
1853     * @return string
1854     */
1855    public function wrapText($message, $length, $qp_mode = false)
1856    {
1857        if ($qp_mode) {
1858            $soft_break = sprintf(' =%s', $this->LE);
1859        } else {
1860            $soft_break = $this->LE;
1861        }
1862        // If utf-8 encoding is used, we will need to make sure we don't
1863        // split multibyte characters when we wrap
1864        $is_utf8 = (strtolower($this->CharSet) == 'utf-8');
1865        $lelen = strlen($this->LE);
1866        $crlflen = strlen(self::CRLF);
1867
1868        $message = $this->fixEOL($message);
1869        //Remove a trailing line break
1870        if (substr($message, -$lelen) == $this->LE) {
1871            $message = substr($message, 0, -$lelen);
1872        }
1873
1874        //Split message into lines
1875        $lines = explode($this->LE, $message);
1876        //Message will be rebuilt in here
1877        $message = '';
1878        foreach ($lines as $line) {
1879            $words = explode(' ', $line);
1880            $buf = '';
1881            $firstword = true;
1882            foreach ($words as $word) {
1883                if ($qp_mode and (strlen($word) > $length)) {
1884                    $space_left = $length - strlen($buf) - $crlflen;
1885                    if (!$firstword) {
1886                        if ($space_left > 20) {
1887                            $len = $space_left;
1888                            if ($is_utf8) {
1889                                $len = $this->utf8CharBoundary($word, $len);
1890                            } elseif (substr($word, $len - 1, 1) == '=') {
1891                                $len--;
1892                            } elseif (substr($word, $len - 2, 1) == '=') {
1893                                $len -= 2;
1894                            }
1895                            $part = substr($word, 0, $len);
1896                            $word = substr($word, $len);
1897                            $buf .= ' ' . $part;
1898                            $message .= $buf . sprintf('=%s', self::CRLF);
1899                        } else {
1900                            $message .= $buf . $soft_break;
1901                        }
1902                        $buf = '';
1903                    }
1904                    while (strlen($word) > 0) {
1905                        if ($length <= 0) {
1906                            break;
1907                        }
1908                        $len = $length;
1909                        if ($is_utf8) {
1910                            $len = $this->utf8CharBoundary($word, $len);
1911                        } elseif (substr($word, $len - 1, 1) == '=') {
1912                            $len--;
1913                        } elseif (substr($word, $len - 2, 1) == '=') {
1914                            $len -= 2;
1915                        }
1916                        $part = substr($word, 0, $len);
1917                        $word = substr($word, $len);
1918
1919                        if (strlen($word) > 0) {
1920                            $message .= $part . sprintf('=%s', self::CRLF);
1921                        } else {
1922                            $buf = $part;
1923                        }
1924                    }
1925                } else {
1926                    $buf_o = $buf;
1927                    if (!$firstword) {
1928                        $buf .= ' ';
1929                    }
1930                    $buf .= $word;
1931
1932                    if (strlen($buf) > $length and $buf_o != '') {
1933                        $message .= $buf_o . $soft_break;
1934                        $buf = $word;
1935                    }
1936                }
1937                $firstword = false;
1938            }
1939            $message .= $buf . self::CRLF;
1940        }
1941
1942        return $message;
1943    }
1944
1945    /**
1946     * Find the last character boundary prior to $maxLength in a utf-8
1947     * quoted-printable encoded string.
1948     * Original written by Colin Brown.
1949     * @access public
1950     * @param string $encodedText utf-8 QP text
1951     * @param integer $maxLength Find the last character boundary prior to this length
1952     * @return integer
1953     */
1954    public function utf8CharBoundary($encodedText, $maxLength)
1955    {
1956        $foundSplitPos = false;
1957        $lookBack = 3;
1958        while (!$foundSplitPos) {
1959            $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack);
1960            $encodedCharPos = strpos($lastChunk, '=');
1961            if (false !== $encodedCharPos) {
1962                // Found start of encoded character byte within $lookBack block.
1963                // Check the encoded byte value (the 2 chars after the '=')
1964                $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2);
1965                $dec = hexdec($hex);
1966                if ($dec < 128) {
1967                    // Single byte character.
1968                    // If the encoded char was found at pos 0, it will fit
1969                    // otherwise reduce maxLength to start of the encoded char
1970                    if ($encodedCharPos > 0) {
1971                        $maxLength = $maxLength - ($lookBack - $encodedCharPos);
1972                    }
1973                    $foundSplitPos = true;
1974                } elseif ($dec >= 192) {
1975                    // First byte of a multi byte character
1976                    // Reduce maxLength to split at start of character
1977                    $maxLength = $maxLength - ($lookBack - $encodedCharPos);
1978                    $foundSplitPos = true;
1979                } elseif ($dec < 192) {
1980                    // Middle byte of a multi byte character, look further back
1981                    $lookBack += 3;
1982                }
1983            } else {
1984                // No encoded character found
1985                $foundSplitPos = true;
1986            }
1987        }
1988        return $maxLength;
1989    }
1990
1991    /**
1992     * Apply word wrapping to the message body.
1993     * Wraps the message body to the number of chars set in the WordWrap property.
1994     * You should only do this to plain-text bodies as wrapping HTML tags may break them.
1995     * This is called automatically by createBody(), so you don't need to call it yourself.
1996     * @access public
1997     * @return void
1998     */
1999    public function setWordWrap()
2000    {
2001        if ($this->WordWrap < 1) {
2002            return;
2003        }
2004
2005        switch ($this->message_type) {
2006            case 'alt':
2007            case 'alt_inline':
2008            case 'alt_attach':
2009            case 'alt_inline_attach':
2010                $this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap);
2011                break;
2012            default:
2013                $this->Body = $this->wrapText($this->Body, $this->WordWrap);
2014                break;
2015        }
2016    }
2017
2018    /**
2019     * Assemble message headers.
2020     * @access public
2021     * @return string The assembled headers
2022     */
2023    public function createHeader()
2024    {
2025        $result = '';
2026
2027        if ($this->MessageDate == '') {
2028            $this->MessageDate = self::rfcDate();
2029        }
2030        $result .= $this->headerLine('Date', $this->MessageDate);
2031
2032        // To be created automatically by mail()
2033        if ($this->SingleTo) {
2034            if ($this->Mailer != 'mail') {
2035                foreach ($this->to as $toaddr) {
2036                    $this->SingleToArray[] = $this->addrFormat($toaddr);
2037                }
2038            }
2039        } else {
2040            if (count($this->to) > 0) {
2041                if ($this->Mailer != 'mail') {
2042                    $result .= $this->addrAppend('To', $this->to);
2043                }
2044            } elseif (count($this->cc) == 0) {
2045                $result .= $this->headerLine('To', 'undisclosed-recipients:;');
2046            }
2047        }
2048
2049        $result .= $this->addrAppend('From', array(array(trim($this->From), $this->FromName)));
2050
2051        // sendmail and mail() extract Cc from the header before sending
2052        if (count($this->cc) > 0) {
2053            $result .= $this->addrAppend('Cc', $this->cc);
2054        }
2055
2056        // sendmail and mail() extract Bcc from the header before sending
2057        if ((
2058                $this->Mailer == 'sendmail' or $this->Mailer == 'qmail' or $this->Mailer == 'mail'
2059            )
2060            and count($this->bcc) > 0
2061        ) {
2062            $result .= $this->addrAppend('Bcc', $this->bcc);
2063        }
2064
2065        if (count($this->ReplyTo) > 0) {
2066            $result .= $this->addrAppend('Reply-To', $this->ReplyTo);
2067        }
2068
2069        // mail() sets the subject itself
2070        if ($this->Mailer != 'mail') {
2071            $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject)));
2072        }
2073
2074        // Only allow a custom message ID if it conforms to RFC 5322 section 3.6.4
2075        // https://tools.ietf.org/html/rfc5322#section-3.6.4
2076        if ('' != $this->MessageID and preg_match('/^<.*@.*>$/', $this->MessageID)) {
2077            $this->lastMessageID = $this->MessageID;
2078        } else {
2079            $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname());
2080        }
2081        $result .= $this->headerLine('Message-ID', $this->lastMessageID);
2082        if (!is_null($this->Priority)) {
2083            $result .= $this->headerLine('X-Priority', $this->Priority);
2084        }
2085        if ($this->XMailer == '') {
2086            $result .= $this->headerLine(
2087                'X-Mailer',
2088                'PHPMailer ' . $this->Version . ' (https://github.com/PHPMailer/PHPMailer)'
2089            );
2090        } else {
2091            $myXmailer = trim($this->XMailer);
2092            if ($myXmailer) {
2093                $result .= $this->headerLine('X-Mailer', $myXmailer);
2094            }
2095        }
2096
2097        if ($this->ConfirmReadingTo != '') {
2098            $result .= $this->headerLine('Disposition-Notification-To', '<' . $this->ConfirmReadingTo . '>');
2099        }
2100
2101        // Add custom headers
2102        foreach ($this->CustomHeader as $header) {
2103            $result .= $this->headerLine(
2104                trim($header[0]),
2105                $this->encodeHeader(trim($header[1]))
2106            );
2107        }
2108        if (!$this->sign_key_file) {
2109            $result .= $this->headerLine('MIME-Version', '1.0');
2110            $result .= $this->getMailMIME();
2111        }
2112
2113        return $result;
2114    }
2115
2116    /**
2117     * Get the message MIME type headers.
2118     * @access public
2119     * @return string
2120     */
2121    public function getMailMIME()
2122    {
2123        $result = '';
2124        $ismultipart = true;
2125        switch ($this->message_type) {
2126            case 'inline':
2127                $result .= $this->headerLine('Content-Type', 'multipart/related;');
2128                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
2129                break;
2130            case 'attach':
2131            case 'inline_attach':
2132            case 'alt_attach':
2133            case 'alt_inline_attach':
2134                $result .= $this->headerLine('Content-Type', 'multipart/mixed;');
2135                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
2136                break;
2137            case 'alt':
2138            case 'alt_inline':
2139                $result .= $this->headerLine('Content-Type', 'multipart/alternative;');
2140                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
2141                break;
2142            default:
2143                // Catches case 'plain': and case '':
2144                $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet);
2145                $ismultipart = false;
2146                break;
2147        }
2148        // RFC1341 part 5 says 7bit is assumed if not specified
2149        if ($this->Encoding != '7bit') {
2150            // RFC 2045 section 6.4 says multipart MIME parts may only use 7bit, 8bit or binary CTE
2151            if ($ismultipart) {
2152                if ($this->Encoding == '8bit') {
2153                    $result .= $this->headerLine('Content-Transfer-Encoding', '8bit');
2154                }
2155                // The only remaining alternatives are quoted-printable and base64, which are both 7bit compatible
2156            } else {
2157                $result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding);
2158            }
2159        }
2160
2161        if ($this->Mailer != 'mail') {
2162            $result .= $this->LE;
2163        }
2164
2165        return $result;
2166    }
2167
2168    /**
2169     * Returns the whole MIME message.
2170     * Includes complete headers and body.
2171     * Only valid post preSend().
2172     * @see PHPMailer::preSend()
2173     * @access public
2174     * @return string
2175     */
2176    public function getSentMIMEMessage()
2177    {
2178        return rtrim($this->MIMEHeader . $this->mailHeader, "\n\r") . self::CRLF . self::CRLF . $this->MIMEBody;
2179    }
2180
2181    /**
2182     * Create unique ID
2183     * @return string
2184     */
2185    protected function generateId() {
2186        return md5(uniqid(time()));
2187    }
2188
2189    /**
2190     * Assemble the message body.
2191     * Returns an empty string on failure.
2192     * @access public
2193     * @throws phpmailerException
2194     * @return string The assembled message body
2195     */
2196    public function createBody()
2197    {
2198        $body = '';
2199        //Create unique IDs and preset boundaries
2200        $this->uniqueid = $this->generateId();
2201        $this->boundary[1] = 'b1_' . $this->uniqueid;
2202        $this->boundary[2] = 'b2_' . $this->uniqueid;
2203        $this->boundary[3] = 'b3_' . $this->uniqueid;
2204
2205        if ($this->sign_key_file) {
2206            $body .= $this->getMailMIME() . $this->LE;
2207        }
2208
2209        $this->setWordWrap();
2210
2211        $bodyEncoding = $this->Encoding;
2212        $bodyCharSet = $this->CharSet;
2213        //Can we do a 7-bit downgrade?
2214        if ($bodyEncoding == '8bit' and !$this->has8bitChars($this->Body)) {
2215            $bodyEncoding = '7bit';
2216            //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit
2217            $bodyCharSet = 'us-ascii';
2218        }
2219        //If lines are too long, and we're not already using an encoding that will shorten them,
2220        //change to quoted-printable transfer encoding for the body part only
2221        if ('base64' != $this->Encoding and self::hasLineLongerThanMax($this->Body)) {
2222            $bodyEncoding = 'quoted-printable';
2223        }
2224
2225        $altBodyEncoding = $this->Encoding;
2226        $altBodyCharSet = $this->CharSet;
2227        //Can we do a 7-bit downgrade?
2228        if ($altBodyEncoding == '8bit' and !$this->has8bitChars($this->AltBody)) {
2229            $altBodyEncoding = '7bit';
2230            //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit
2231            $altBodyCharSet = 'us-ascii';
2232        }
2233        //If lines are too long, and we're not already using an encoding that will shorten them,
2234        //change to quoted-printable transfer encoding for the alt body part only
2235        if ('base64' != $altBodyEncoding and self::hasLineLongerThanMax($this->AltBody)) {
2236            $altBodyEncoding = 'quoted-printable';
2237        }
2238        //Use this as a preamble in all multipart message types
2239        $mimepre = "This is a multi-part message in MIME format." . $this->LE . $this->LE;
2240        switch ($this->message_type) {
2241            case 'inline':
2242                $body .= $mimepre;
2243                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
2244                $body .= $this->encodeString($this->Body, $bodyEncoding);
2245                $body .= $this->LE . $this->LE;
2246                $body .= $this->attachAll('inline', $this->boundary[1]);
2247                break;
2248            case 'attach':
2249                $body .= $mimepre;
2250                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
2251                $body .= $this->encodeString($this->Body, $bodyEncoding);
2252                $body .= $this->LE . $this->LE;
2253                $body .= $this->attachAll('attachment', $this->boundary[1]);
2254                break;
2255            case 'inline_attach':
2256                $body .= $mimepre;
2257                $body .= $this->textLine('--' . $this->boundary[1]);
2258                $body .= $this->headerLine('Content-Type', 'multipart/related;');
2259                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
2260                $body .= $this->LE;
2261                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding);
2262                $body .= $this->encodeString($this->Body, $bodyEncoding);
2263                $body .= $this->LE . $this->LE;
2264                $body .= $this->attachAll('inline', $this->boundary[2]);
2265                $body .= $this->LE;
2266                $body .= $this->attachAll('attachment', $this->boundary[1]);
2267                break;
2268            case 'alt':
2269                $body .= $mimepre;
2270                $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding);
2271                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
2272                $body .= $this->LE . $this->LE;
2273                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, 'text/html', $bodyEncoding);
2274                $body .= $this->encodeString($this->Body, $bodyEncoding);
2275                $body .= $this->LE . $this->LE;
2276                if (!empty($this->Ical)) {
2277                    $body .= $this->getBoundary($this->boundary[1], '', 'text/calendar; method=REQUEST', '');
2278                    $body .= $this->encodeString($this->Ical, $this->Encoding);
2279                    $body .= $this->LE . $this->LE;
2280                }
2281                $body .= $this->endBoundary($this->boundary[1]);
2282                break;
2283            case 'alt_inline':
2284                $body .= $mimepre;
2285                $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding);
2286                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
2287                $body .= $this->LE . $this->LE;
2288                $body .= $this->textLine('--' . $this->boundary[1]);
2289                $body .= $this->headerLine('Content-Type', 'multipart/related;');
2290                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
2291                $body .= $this->LE;
2292                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding);
2293                $body .= $this->encodeString($this->Body, $bodyEncoding);
2294                $body .= $this->LE . $this->LE;
2295                $body .= $this->attachAll('inline', $this->boundary[2]);
2296                $body .= $this->LE;
2297                $body .= $this->endBoundary($this->boundary[1]);
2298                break;
2299            case 'alt_attach':
2300                $body .= $mimepre;
2301                $body .= $this->textLine('--' . $this->boundary[1]);
2302                $body .= $this->headerLine('Content-Type', 'multipart/alternative;');
2303                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
2304                $body .= $this->LE;
2305                $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding);
2306                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
2307                $body .= $this->LE . $this->LE;
2308                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding);
2309                $body .= $this->encodeString($this->Body, $bodyEncoding);
2310                $body .= $this->LE . $this->LE;
2311                $body .= $this->endBoundary($this->boundary[2]);
2312                $body .= $this->LE;
2313                $body .= $this->attachAll('attachment', $this->boundary[1]);
2314                break;
2315            case 'alt_inline_attach':
2316                $body .= $mimepre;
2317                $body .= $this->textLine('--' . $this->boundary[1]);
2318                $body .= $this->headerLine('Content-Type', 'multipart/alternative;');
2319                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
2320                $body .= $this->LE;
2321                $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding);
2322                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
2323                $body .= $this->LE . $this->LE;
2324                $body .= $this->textLine('--' . $this->boundary[2]);
2325                $body .= $this->headerLine('Content-Type', 'multipart/related;');
2326                $body .= $this->textLine("\tboundary=\"" . $this->boundary[3] . '"');
2327                $body .= $this->LE;
2328                $body .= $this->getBoundary($this->boundary[3], $bodyCharSet, 'text/html', $bodyEncoding);
2329                $body .= $this->encodeString($this->Body, $bodyEncoding);
2330                $body .= $this->LE . $this->LE;
2331                $body .= $this->attachAll('inline', $this->boundary[3]);
2332                $body .= $this->LE;
2333                $body .= $this->endBoundary($this->boundary[2]);
2334                $body .= $this->LE;
2335                $body .= $this->attachAll('attachment', $this->boundary[1]);
2336                break;
2337            default:
2338                // Catch case 'plain' and case '', applies to simple `text/plain` and `text/html` body content types
2339                //Reset the `Encoding` property in case we changed it for line length reasons
2340                $this->Encoding = $bodyEncoding;
2341                $body .= $this->encodeString($this->Body, $this->Encoding);
2342                break;
2343        }
2344
2345        if ($this->isError()) {
2346            $body = '';
2347        } elseif ($this->sign_key_file) {
2348            try {
2349                if (!defined('PKCS7_TEXT')) {
2350                    throw new phpmailerException($this->lang('extension_missing') . 'openssl');
2351                }
2352                // @TODO would be nice to use php://temp streams here, but need to wrap for PHP < 5.1
2353                $file = tempnam(sys_get_temp_dir(), 'mail');
2354                if (false === file_put_contents($file, $body)) {
2355                    throw new phpmailerException($this->lang('signing') . ' Could not write temp file');
2356                }
2357                $signed = tempnam(sys_get_temp_dir(), 'signed');
2358                //Workaround for PHP bug https://bugs.php.net/bug.php?id=69197
2359                if (empty($this->sign_extracerts_file)) {
2360                    $sign = @openssl_pkcs7_sign(
2361                        $file,
2362                        $signed,
2363                        'file://' . realpath($this->sign_cert_file),
2364                        array('file://' . realpath($this->sign_key_file), $this->sign_key_pass),
2365                        null
2366                    );
2367                } else {
2368                    $sign = @openssl_pkcs7_sign(
2369                        $file,
2370                        $signed,
2371                        'file://' . realpath($this->sign_cert_file),
2372                        array('file://' . realpath($this->sign_key_file), $this->sign_key_pass),
2373                        null,
2374                        PKCS7_DETACHED,
2375                        $this->sign_extracerts_file
2376                    );
2377                }
2378                if ($sign) {
2379                    @unlink($file);
2380                    $body = file_get_contents($signed);
2381                    @unlink($signed);
2382                    //The message returned by openssl contains both headers and body, so need to split them up
2383                    $parts = explode("\n\n", $body, 2);
2384                    $this->MIMEHeader .= $parts[0] . $this->LE . $this->LE;
2385                    $body = $parts[1];
2386                } else {
2387                    @unlink($file);
2388                    @unlink($signed);
2389                    throw new phpmailerException($this->lang('signing') . openssl_error_string());
2390                }
2391            } catch (phpmailerException $exc) {
2392                $body = '';
2393                if ($this->exceptions) {
2394                    throw $exc;
2395                }
2396            }
2397        }
2398        return $body;
2399    }
2400
2401    /**
2402     * Return the start of a message boundary.
2403     * @access protected
2404     * @param string $boundary
2405     * @param string $charSet
2406     * @param string $contentType
2407     * @param string $encoding
2408     * @return string
2409     */
2410    protected function getBoundary($boundary, $charSet, $contentType, $encoding)
2411    {
2412        $result = '';
2413        if ($charSet == '') {
2414            $charSet = $this->CharSet;
2415        }
2416        if ($contentType == '') {
2417            $contentType = $this->ContentType;
2418        }
2419        if ($encoding == '') {
2420            $encoding = $this->Encoding;
2421        }
2422        $result .= $this->textLine('--' . $boundary);
2423        $result .= sprintf('Content-Type: %s; charset=%s', $contentType, $charSet);
2424        $result .= $this->LE;
2425        // RFC1341 part 5 says 7bit is assumed if not specified
2426        if ($encoding != '7bit') {
2427            $result .= $this->headerLine('Content-Transfer-Encoding', $encoding);
2428        }
2429        $result .= $this->LE;
2430
2431        return $result;
2432    }
2433
2434    /**
2435     * Return the end of a message boundary.
2436     * @access protected
2437     * @param string $boundary
2438     * @return string
2439     */
2440    protected function endBoundary($boundary)
2441    {
2442        return $this->LE . '--' . $boundary . '--' . $this->LE;
2443    }
2444
2445    /**
2446     * Set the message type.
2447     * PHPMailer only supports some preset message types, not arbitrary MIME structures.
2448     * @access protected
2449     * @return void
2450     */
2451    protected function setMessageType()
2452    {
2453        $type = array();
2454        if ($this->alternativeExists()) {
2455            $type[] = 'alt';
2456        }
2457        if ($this->inlineImageExists()) {
2458            $type[] = 'inline';
2459        }
2460        if ($this->attachmentExists()) {
2461            $type[] = 'attach';
2462        }
2463        $this->message_type = implode('_', $type);
2464        if ($this->message_type == '') {
2465            //The 'plain' message_type refers to the message having a single body element, not that it is plain-text
2466            $this->message_type = 'plain';
2467        }
2468    }
2469
2470    /**
2471     * Format a header line.
2472     * @access public
2473     * @param string $name
2474     * @param string $value
2475     * @return string
2476     */
2477    public function headerLine($name, $value)
2478    {
2479        return $name . ': ' . $value . $this->LE;
2480    }
2481
2482    /**
2483     * Return a formatted mail line.
2484     * @access public
2485     * @param string $value
2486     * @return string
2487     */
2488    public function textLine($value)
2489    {
2490        return $value . $this->LE;
2491    }
2492
2493    /**
2494     * Add an attachment from a path on the filesystem.
2495     * Never use a user-supplied path to a file!
2496     * Returns false if the file could not be found or read.
2497     * @param string $path Path to the attachment.
2498     * @param string $name Overrides the attachment name.
2499     * @param string $encoding File encoding (see $Encoding).
2500     * @param string $type File extension (MIME) type.
2501     * @param string $disposition Disposition to use
2502     * @throws phpmailerException
2503     * @return boolean
2504     */
2505    public function addAttachment($path, $name = '', $encoding = 'base64', $type = '', $disposition = 'attachment')
2506    {
2507        try {
2508            if (!@is_file($path)) {
2509                throw new phpmailerException($this->lang('file_access') . $path, self::STOP_CONTINUE);
2510            }
2511
2512            // If a MIME type is not specified, try to work it out from the file name
2513            if ($type == '') {
2514                $type = self::filenameToType($path);
2515            }
2516
2517            $filename = basename($path);
2518            if ($name == '') {
2519                $name = $filename;
2520            }
2521
2522            $this->attachment[] = array(
2523                0 => $path,
2524                1 => $filename,
2525                2 => $name,
2526                3 => $encoding,
2527                4 => $type,
2528                5 => false, // isStringAttachment
2529                6 => $disposition,
2530                7 => 0
2531            );
2532
2533        } catch (phpmailerException $exc) {
2534            $this->setError($exc->getMessage());
2535            $this->edebug($exc->getMessage());
2536            if ($this->exceptions) {
2537                throw $exc;
2538            }
2539            return false;
2540        }
2541        return true;
2542    }
2543
2544    /**
2545     * Return the array of attachments.
2546     * @return array
2547     */
2548    public function getAttachments()
2549    {
2550        return $this->attachment;
2551    }
2552
2553    /**
2554     * Attach all file, string, and binary attachments to the message.
2555     * Returns an empty string on failure.
2556     * @access protected
2557     * @param string $disposition_type
2558     * @param string $boundary
2559     * @return string
2560     */
2561    protected function attachAll($disposition_type, $boundary)
2562    {
2563        // Return text of body
2564        $mime = array();
2565        $cidUniq = array();
2566        $incl = array();
2567
2568        // Add all attachments
2569        foreach ($this->attachment as $attachment) {
2570            // Check if it is a valid disposition_filter
2571            if ($attachment[6] == $disposition_type) {
2572                // Check for string attachment
2573                $string = '';
2574                $path = '';
2575                $bString = $attachment[5];
2576                if ($bString) {
2577                    $string = $attachment[0];
2578                } else {
2579                    $path = $attachment[0];
2580                }
2581
2582                $inclhash = md5(serialize($attachment));
2583                if (in_array($inclhash, $incl)) {
2584                    continue;
2585                }
2586                $incl[] = $inclhash;
2587                $name = $attachment[2];
2588                $encoding = $attachment[3];
2589                $type = $attachment[4];
2590                $disposition = $attachment[6];
2591                $cid = $attachment[7];
2592                if ($disposition == 'inline' && array_key_exists($cid, $cidUniq)) {
2593                    continue;
2594                }
2595                $cidUniq[$cid] = true;
2596
2597                $mime[] = sprintf('--%s%s', $boundary, $this->LE);
2598                //Only include a filename property if we have one
2599                if (!empty($name)) {
2600                    $mime[] = sprintf(
2601                        'Content-Type: %s; name="%s"%s',
2602                        $type,
2603                        $this->encodeHeader($this->secureHeader($name)),
2604                        $this->LE
2605                    );
2606                } else {
2607                    $mime[] = sprintf(
2608                        'Content-Type: %s%s',
2609                        $type,
2610                        $this->LE
2611                    );
2612                }
2613                // RFC1341 part 5 says 7bit is assumed if not specified
2614                if ($encoding != '7bit') {
2615                    $mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, $this->LE);
2616                }
2617
2618                if ($disposition == 'inline') {
2619                    $mime[] = sprintf('Content-ID: <%s>%s', $cid, $this->LE);
2620                }
2621
2622                // If a filename contains any of these chars, it should be quoted,
2623                // but not otherwise: RFC2183 & RFC2045 5.1
2624                // Fixes a warning in IETF's msglint MIME checker
2625                // Allow for bypassing the Content-Disposition header totally
2626                if (!(empty($disposition))) {
2627                    $encoded_name = $this->encodeHeader($this->secureHeader($name));
2628                    if (preg_match('/[ \(\)<>@,;:\\"\/\[\]\?=]/', $encoded_name)) {
2629                        $mime[] = sprintf(
2630                            'Content-Disposition: %s; filename="%s"%s',
2631                            $disposition,
2632                            $encoded_name,
2633                            $this->LE . $this->LE
2634                        );
2635                    } else {
2636                        if (!empty($encoded_name)) {
2637                            $mime[] = sprintf(
2638                                'Content-Disposition: %s; filename=%s%s',
2639                                $disposition,
2640                                $encoded_name,
2641                                $this->LE . $this->LE
2642                            );
2643                        } else {
2644                            $mime[] = sprintf(
2645                                'Content-Disposition: %s%s',
2646                                $disposition,
2647                                $this->LE . $this->LE
2648                            );
2649                        }
2650                    }
2651                } else {
2652                    $mime[] = $this->LE;
2653                }
2654
2655                // Encode as string attachment
2656                if ($bString) {
2657                    $mime[] = $this->encodeString($string, $encoding);
2658                    if ($this->isError()) {
2659                        return '';
2660                    }
2661                    $mime[] = $this->LE . $this->LE;
2662                } else {
2663                    $mime[] = $this->encodeFile($path, $encoding);
2664                    if ($this->isError()) {
2665                        return '';
2666                    }
2667                    $mime[] = $this->LE . $this->LE;
2668                }
2669            }
2670        }
2671
2672        $mime[] = sprintf('--%s--%s', $boundary, $this->LE);
2673
2674        return implode('', $mime);
2675    }
2676
2677    /**
2678     * Encode a file attachment in requested format.
2679     * Returns an empty string on failure.
2680     * @param string $path The full path to the file
2681     * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
2682     * @throws phpmailerException
2683     * @access protected
2684     * @return string
2685     */
2686    protected function encodeFile($path, $encoding = 'base64')
2687    {
2688        try {
2689            if (!is_readable($path)) {
2690                throw new phpmailerException($this->lang('file_open') . $path, self::STOP_CONTINUE);
2691            }
2692            $magic_quotes = get_magic_quotes_runtime();
2693            if ($magic_quotes) {
2694                if (version_compare(PHP_VERSION, '5.3.0', '<')) {
2695                    set_magic_quotes_runtime(false);
2696                } else {
2697                    //Doesn't exist in PHP 5.4, but we don't need to check because
2698                    //get_magic_quotes_runtime always returns false in 5.4+
2699                    //so it will never get here
2700                    ini_set('magic_quotes_runtime', false);
2701                }
2702            }
2703            $file_buffer = file_get_contents($path);
2704            $file_buffer = $this->encodeString($file_buffer, $encoding);
2705            if ($magic_quotes) {
2706                if (version_compare(PHP_VERSION, '5.3.0', '<')) {
2707                    set_magic_quotes_runtime($magic_quotes);
2708                } else {
2709                    ini_set('magic_quotes_runtime', $magic_quotes);
2710                }
2711            }
2712            return $file_buffer;
2713        } catch (Exception $exc) {
2714            $this->setError($exc->getMessage());
2715            return '';
2716        }
2717    }
2718
2719    /**
2720     * Encode a string in requested format.
2721     * Returns an empty string on failure.
2722     * @param string $str The text to encode
2723     * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
2724     * @access public
2725     * @return string
2726     */
2727    public function encodeString($str, $encoding = 'base64')
2728    {
2729        $encoded = '';
2730        switch (strtolower($encoding)) {
2731            case 'base64':
2732                $encoded = chunk_split(base64_encode($str), 76, $this->LE);
2733                break;
2734            case '7bit':
2735            case '8bit':
2736                $encoded = $this->fixEOL($str);
2737                // Make sure it ends with a line break
2738                if (substr($encoded, -(strlen($this->LE))) != $this->LE) {
2739                    $encoded .= $this->LE;
2740                }
2741                break;
2742            case 'binary':
2743                $encoded = $str;
2744                break;
2745            case 'quoted-printable':
2746                $encoded = $this->encodeQP($str);
2747                break;
2748            default:
2749                $this->setError($this->lang('encoding') . $encoding);
2750                break;
2751        }
2752        return $encoded;
2753    }
2754
2755    /**
2756     * Encode a header string optimally.
2757     * Picks shortest of Q, B, quoted-printable or none.
2758     * @access public
2759     * @param string $str
2760     * @param string $position
2761     * @return string
2762     */
2763    public function encodeHeader($str, $position = 'text')
2764    {
2765        $matchcount = 0;
2766        switch (strtolower($position)) {
2767            case 'phrase':
2768                if (!preg_match('/[\200-\377]/', $str)) {
2769                    // Can't use addslashes as we don't know the value of magic_quotes_sybase
2770                    $encoded = addcslashes($str, "\0..\37\177\\\"");
2771                    if (($str == $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) {
2772                        return ($encoded);
2773                    } else {
2774                        return ("\"$encoded\"");
2775                    }
2776                }
2777                $matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
2778                break;
2779            /** @noinspection PhpMissingBreakStatementInspection */
2780            case 'comment':
2781                $matchcount = preg_match_all('/[()"]/', $str, $matches);
2782            // Intentional fall-through
2783            case 'text':
2784            default:
2785                $matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);
2786                break;
2787        }
2788
2789        //There are no chars that need encoding
2790        if ($matchcount == 0) {
2791            return ($str);
2792        }
2793
2794        $maxlen = 75 - 7 - strlen($this->CharSet);
2795        // Try to select the encoding which should produce the shortest output
2796        if ($matchcount > strlen($str) / 3) {
2797            // More than a third of the content will need encoding, so B encoding will be most efficient
2798            $encoding = 'B';
2799            if (function_exists('mb_strlen') && $this->hasMultiBytes($str)) {
2800                // Use a custom function which correctly encodes and wraps long
2801                // multibyte strings without breaking lines within a character
2802                $encoded = $this->base64EncodeWrapMB($str, "\n");
2803            } else {
2804                $encoded = base64_encode($str);
2805                $maxlen -= $maxlen % 4;
2806                $encoded = trim(chunk_split($encoded, $maxlen, "\n"));
2807            }
2808        } else {
2809            $encoding = 'Q';
2810            $encoded = $this->encodeQ($str, $position);
2811            $encoded = $this->wrapText($encoded, $maxlen, true);
2812            $encoded = str_replace('=' . self::CRLF, "\n", trim($encoded));
2813        }
2814
2815        $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded);
2816        $encoded = trim(str_replace("\n", $this->LE, $encoded));
2817
2818        return $encoded;
2819    }
2820
2821    /**
2822     * Check if a string contains multi-byte characters.
2823     * @access public
2824     * @param string $str multi-byte text to wrap encode
2825     * @return boolean
2826     */
2827    public function hasMultiBytes($str)
2828    {
2829        if (function_exists('mb_strlen')) {
2830            return (strlen($str) > mb_strlen($str, $this->CharSet));
2831        } else { // Assume no multibytes (we can't handle without mbstring functions anyway)
2832            return false;
2833        }
2834    }
2835
2836    /**
2837     * Does a string contain any 8-bit chars (in any charset)?
2838     * @param string $text
2839     * @return boolean
2840     */
2841    public function has8bitChars($text)
2842    {
2843        return (boolean)preg_match('/[\x80-\xFF]/', $text);
2844    }
2845
2846    /**
2847     * Encode and wrap long multibyte strings for mail headers
2848     * without breaking lines within a character.
2849     * Adapted from a function by paravoid
2850     * @link http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
2851     * @access public
2852     * @param string $str multi-byte text to wrap encode
2853     * @param string $linebreak string to use as linefeed/end-of-line
2854     * @return string
2855     */
2856    public function base64EncodeWrapMB($str, $linebreak = null)
2857    {
2858        $start = '=?' . $this->CharSet . '?B?';
2859        $end = '?=';
2860        $encoded = '';
2861        if ($linebreak === null) {
2862            $linebreak = $this->LE;
2863        }
2864
2865        $mb_length = mb_strlen($str, $this->CharSet);
2866        // Each line must have length <= 75, including $start and $end
2867        $length = 75 - strlen($start) - strlen($end);
2868        // Average multi-byte ratio
2869        $ratio = $mb_length / strlen($str);
2870        // Base64 has a 4:3 ratio
2871        $avgLength = floor($length * $ratio * .75);
2872
2873        for ($i = 0; $i < $mb_length; $i += $offset) {
2874            $lookBack = 0;
2875            do {
2876                $offset = $avgLength - $lookBack;
2877                $chunk = mb_substr($str, $i, $offset, $this->CharSet);
2878                $chunk = base64_encode($chunk);
2879                $lookBack++;
2880            } while (strlen($chunk) > $length);
2881            $encoded .= $chunk . $linebreak;
2882        }
2883
2884        // Chomp the last linefeed
2885        $encoded = substr($encoded, 0, -strlen($linebreak));
2886        return $encoded;
2887    }
2888
2889    /**
2890     * Encode a string in quoted-printable format.
2891     * According to RFC2045 section 6.7.
2892     * @access public
2893     * @param string $string The text to encode
2894     * @param integer $line_max Number of chars allowed on a line before wrapping
2895     * @return string
2896     * @link http://www.php.net/manual/en/function.quoted-printable-decode.php#89417 Adapted from this comment
2897     */
2898    public function encodeQP($string, $line_max = 76)
2899    {
2900        // Use native function if it's available (>= PHP5.3)
2901        if (function_exists('quoted_printable_encode')) {
2902            return quoted_printable_encode($string);
2903        }
2904        // Fall back to a pure PHP implementation
2905        $string = str_replace(
2906            array('%20', '%0D%0A.', '%0D%0A', '%'),
2907            array(' ', "\r\n=2E", "\r\n", '='),
2908            rawurlencode($string)
2909        );
2910        return preg_replace('/[^\r\n]{' . ($line_max - 3) . '}[^=\r\n]{2}/', "$0=\r\n", $string);
2911    }
2912
2913    /**
2914     * Backward compatibility wrapper for an old QP encoding function that was removed.
2915     * @see PHPMailer::encodeQP()
2916     * @access public
2917     * @param string $string
2918     * @param integer $line_max
2919     * @param boolean $space_conv
2920     * @return string
2921     * @deprecated Use encodeQP instead.
2922     */
2923    public function encodeQPphp(
2924        $string,
2925        $line_max = 76,
2926        /** @noinspection PhpUnusedParameterInspection */ $space_conv = false
2927    ) {
2928        return $this->encodeQP($string, $line_max);
2929    }
2930
2931    /**
2932     * Encode a string using Q encoding.
2933     * @link http://tools.ietf.org/html/rfc2047
2934     * @param string $str the text to encode
2935     * @param string $position Where the text is going to be used, see the RFC for what that means
2936     * @access public
2937     * @return string
2938     */
2939    public function encodeQ($str, $position = 'text')
2940    {
2941        // There should not be any EOL in the string
2942        $pattern = '';
2943        $encoded = str_replace(array("\r", "\n"), '', $str);
2944        switch (strtolower($position)) {
2945            case 'phrase':
2946                // RFC 2047 section 5.3
2947                $pattern = '^A-Za-z0-9!*+\/ -';
2948                break;
2949            /** @noinspection PhpMissingBreakStatementInspection */
2950            case 'comment':
2951                // RFC 2047 section 5.2
2952                $pattern = '\(\)"';
2953            // intentional fall-through
2954            // for this reason we build the $pattern without including delimiters and []
2955            case 'text':
2956            default:
2957                // RFC 2047 section 5.1
2958                // Replace every high ascii, control, =, ? and _ characters
2959                $pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern;
2960                break;
2961        }
2962        $matches = array();
2963        if (preg_match_all("/[{$pattern}]/", $encoded, $matches)) {
2964            // If the string contains an '=', make sure it's the first thing we replace
2965            // so as to avoid double-encoding
2966            $eqkey = array_search('=', $matches[0]);
2967            if (false !== $eqkey) {
2968                unset($matches[0][$eqkey]);
2969                array_unshift($matches[0], '=');
2970            }
2971            foreach (array_unique($matches[0]) as $char) {
2972                $encoded = str_replace($char, '=' . sprintf('%02X', ord($char)), $encoded);
2973            }
2974        }
2975        // Replace every spaces to _ (more readable than =20)
2976        return str_replace(' ', '_', $encoded);
2977    }
2978
2979    /**
2980     * Add a string or binary attachment (non-filesystem).
2981     * This method can be used to attach ascii or binary data,
2982     * such as a BLOB record from a database.
2983     * @param string $string String attachment data.
2984     * @param string $filename Name of the attachment.
2985     * @param string $encoding File encoding (see $Encoding).
2986     * @param string $type File extension (MIME) type.
2987     * @param string $disposition Disposition to use
2988     * @return void
2989     */
2990    public function addStringAttachment(
2991        $string,
2992        $filename,
2993        $encoding = 'base64',
2994        $type = '',
2995        $disposition = 'attachment'
2996    ) {
2997        // If a MIME type is not specified, try to work it out from the file name
2998        if ($type == '') {
2999            $type = self::filenameToType($filename);
3000        }
3001        // Append to $attachment array
3002        $this->attachment[] = array(
3003            0 => $string,
3004            1 => $filename,
3005            2 => basename($filename),
3006            3 => $encoding,
3007            4 => $type,
3008            5 => true, // isStringAttachment
3009            6 => $disposition,
3010            7 => 0
3011        );
3012    }
3013
3014    /**
3015     * Add an embedded (inline) attachment from a file.
3016     * This can include images, sounds, and just about any other document type.
3017     * These differ from 'regular' attachments in that they are intended to be
3018     * displayed inline with the message, not just attached for download.
3019     * This is used in HTML messages that embed the images
3020     * the HTML refers to using the $cid value.
3021     * Never use a user-supplied path to a file!
3022     * @param string $path Path to the attachment.
3023     * @param string $cid Content ID of the attachment; Use this to reference
3024     *        the content when using an embedded image in HTML.
3025     * @param string $name Overrides the attachment name.
3026     * @param string $encoding File encoding (see $Encoding).
3027     * @param string $type File MIME type.
3028     * @param string $disposition Disposition to use
3029     * @return boolean True on successfully adding an attachment
3030     */
3031    public function addEmbeddedImage($path, $cid, $name = '', $encoding = 'base64', $type = '', $disposition = 'inline')
3032    {
3033        if (!@is_file($path)) {
3034            $this->setError($this->lang('file_access') . $path);
3035            return false;
3036        }
3037
3038        // If a MIME type is not specified, try to work it out from the file name
3039        if ($type == '') {
3040            $type = self::filenameToType($path);
3041        }
3042
3043        $filename = basename($path);
3044        if ($name == '') {
3045            $name = $filename;
3046        }
3047
3048        // Append to $attachment array
3049        $this->attachment[] = array(
3050            0 => $path,
3051            1 => $filename,
3052            2 => $name,
3053            3 => $encoding,
3054            4 => $type,
3055            5 => false, // isStringAttachment
3056            6 => $disposition,
3057            7 => $cid
3058        );
3059        return true;
3060    }
3061
3062    /**
3063     * Add an embedded stringified attachment.
3064     * This can include images, sounds, and just about any other document type.
3065     * Be sure to set the $type to an image type for images:
3066     * JPEG images use 'image/jpeg', GIF uses 'image/gif', PNG uses 'image/png'.
3067     * @param string $string The attachment binary data.
3068     * @param string $cid Content ID of the attachment; Use this to reference
3069     *        the content when using an embedded image in HTML.
3070     * @param string $name
3071     * @param string $encoding File encoding (see $Encoding).
3072     * @param string $type MIME type.
3073     * @param string $disposition Disposition to use
3074     * @return boolean True on successfully adding an attachment
3075     */
3076    public function addStringEmbeddedImage(
3077        $string,
3078        $cid,
3079        $name = '',
3080        $encoding = 'base64',
3081        $type = '',
3082        $disposition = 'inline'
3083    ) {
3084        // If a MIME type is not specified, try to work it out from the name
3085        if ($type == '' and !empty($name)) {
3086            $type = self::filenameToType($name);
3087        }
3088
3089        // Append to $attachment array
3090        $this->attachment[] = array(
3091            0 => $string,
3092            1 => $name,
3093            2 => $name,
3094            3 => $encoding,
3095            4 => $type,
3096            5 => true, // isStringAttachment
3097            6 => $disposition,
3098            7 => $cid
3099        );
3100        return true;
3101    }
3102
3103    /**
3104     * Check if an inline attachment is present.
3105     * @access public
3106     * @return boolean
3107     */
3108    public function inlineImageExists()
3109    {
3110        foreach ($this->attachment as $attachment) {
3111            if ($attachment[6] == 'inline') {
3112                return true;
3113            }
3114        }
3115        return false;
3116    }
3117
3118    /**
3119     * Check if an attachment (non-inline) is present.
3120     * @return boolean
3121     */
3122    public function attachmentExists()
3123    {
3124        foreach ($this->attachment as $attachment) {
3125            if ($attachment[6] == 'attachment') {
3126                return true;
3127            }
3128        }
3129        return false;
3130    }
3131
3132    /**
3133     * Check if this message has an alternative body set.
3134     * @return boolean
3135     */
3136    public function alternativeExists()
3137    {
3138        return !empty($this->AltBody);
3139    }
3140
3141    /**
3142     * Clear queued addresses of given kind.
3143     * @access protected
3144     * @param string $kind 'to', 'cc', or 'bcc'
3145     * @return void
3146     */
3147    public function clearQueuedAddresses($kind)
3148    {
3149        $RecipientsQueue = $this->RecipientsQueue;
3150        foreach ($RecipientsQueue as $address => $params) {
3151            if ($params[0] == $kind) {
3152                unset($this->RecipientsQueue[$address]);
3153            }
3154        }
3155    }
3156
3157    /**
3158     * Clear all To recipients.
3159     * @return void
3160     */
3161    public function clearAddresses()
3162    {
3163        foreach ($this->to as $to) {
3164            unset($this->all_recipients[strtolower($to[0])]);
3165        }
3166        $this->to = array();
3167        $this->clearQueuedAddresses('to');
3168    }
3169
3170    /**
3171     * Clear all CC recipients.
3172     * @return void
3173     */
3174    public function clearCCs()
3175    {
3176        foreach ($this->cc as $cc) {
3177            unset($this->all_recipients[strtolower($cc[0])]);
3178        }
3179        $this->cc = array();
3180        $this->clearQueuedAddresses('cc');
3181    }
3182
3183    /**
3184     * Clear all BCC recipients.
3185     * @return void
3186     */
3187    public function clearBCCs()
3188    {
3189        foreach ($this->bcc as $bcc) {
3190            unset($this->all_recipients[strtolower($bcc[0])]);
3191        }
3192        $this->bcc = array();
3193        $this->clearQueuedAddresses('bcc');
3194    }
3195
3196    /**
3197     * Clear all ReplyTo recipients.
3198     * @return void
3199     */
3200    public function clearReplyTos()
3201    {
3202        $this->ReplyTo = array();
3203        $this->ReplyToQueue = array();
3204    }
3205
3206    /**
3207     * Clear all recipient types.
3208     * @return void
3209     */
3210    public function clearAllRecipients()
3211    {
3212        $this->to = array();
3213        $this->cc = array();
3214        $this->bcc = array();
3215        $this->all_recipients = array();
3216        $this->RecipientsQueue = array();
3217    }
3218
3219    /**
3220     * Clear all filesystem, string, and binary attachments.
3221     * @return void
3222     */
3223    public function clearAttachments()
3224    {
3225        $this->attachment = array();
3226    }
3227
3228    /**
3229     * Clear all custom headers.
3230     * @return void
3231     */
3232    public function clearCustomHeaders()
3233    {
3234        $this->CustomHeader = array();
3235    }
3236
3237    /**
3238     * Add an error message to the error container.
3239     * @access protected
3240     * @param string $msg
3241     * @return void
3242     */
3243    protected function setError($msg)
3244    {
3245        $this->error_count++;
3246        if ($this->Mailer == 'smtp' and !is_null($this->smtp)) {
3247            $lasterror = $this->smtp->getError();
3248            if (!empty($lasterror['error'])) {
3249                $msg .= $this->lang('smtp_error') . $lasterror['error'];
3250                if (!empty($lasterror['detail'])) {
3251                    $msg .= ' Detail: '. $lasterror['detail'];
3252                }
3253                if (!empty($lasterror['smtp_code'])) {
3254                    $msg .= ' SMTP code: ' . $lasterror['smtp_code'];
3255                }
3256                if (!empty($lasterror['smtp_code_ex'])) {
3257                    $msg .= ' Additional SMTP info: ' . $lasterror['smtp_code_ex'];
3258                }
3259            }
3260        }
3261        $this->ErrorInfo = $msg;
3262    }
3263
3264    /**
3265     * Return an RFC 822 formatted date.
3266     * @access public
3267     * @return string
3268     * @static
3269     */
3270    public static function rfcDate()
3271    {
3272        // Set the time zone to whatever the default is to avoid 500 errors
3273        // Will default to UTC if it's not set properly in php.ini
3274        date_default_timezone_set(@date_default_timezone_get());
3275        return date('D, j M Y H:i:s O');
3276    }
3277
3278    /**
3279     * Get the server hostname.
3280     * Returns 'localhost.localdomain' if unknown.
3281     * @access protected
3282     * @return string
3283     */
3284    protected function serverHostname()
3285    {
3286        $result = 'localhost.localdomain';
3287        if (!empty($this->Hostname)) {
3288            $result = $this->Hostname;
3289        } elseif (isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER) and !empty($_SERVER['SERVER_NAME'])) {
3290            $result = $_SERVER['SERVER_NAME'];
3291        } elseif (function_exists('gethostname') && gethostname() !== false) {
3292            $result = gethostname();
3293        } elseif (php_uname('n') !== false) {
3294            $result = php_uname('n');
3295        }
3296        return $result;
3297    }
3298
3299    /**
3300     * Get an error message in the current language.
3301     * @access protected
3302     * @param string $key
3303     * @return string
3304     */
3305    protected function lang($key)
3306    {
3307        if (count($this->language) < 1) {
3308            $this->setLanguage('en'); // set the default language
3309        }
3310
3311        if (array_key_exists($key, $this->language)) {
3312            if ($key == 'smtp_connect_failed') {
3313                //Include a link to troubleshooting docs on SMTP connection failure
3314                //this is by far the biggest cause of support questions
3315                //but it's usually not PHPMailer's fault.
3316                return $this->language[$key] . ' https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting';
3317            }
3318            return $this->language[$key];
3319        } else {
3320            //Return the key as a fallback
3321            return $key;
3322        }
3323    }
3324
3325    /**
3326     * Check if an error occurred.
3327     * @access public
3328     * @return boolean True if an error did occur.
3329     */
3330    public function isError()
3331    {
3332        return ($this->error_count > 0);
3333    }
3334
3335    /**
3336     * Ensure consistent line endings in a string.
3337     * Changes every end of line from CRLF, CR or LF to $this->LE.
3338     * @access public
3339     * @param string $str String to fixEOL
3340     * @return string
3341     */
3342    public function fixEOL($str)
3343    {
3344        // Normalise to \n
3345        $nstr = str_replace(array("\r\n", "\r"), "\n", $str);
3346        // Now convert LE as needed
3347        if ($this->LE !== "\n") {
3348            $nstr = str_replace("\n", $this->LE, $nstr);
3349        }
3350        return $nstr;
3351    }
3352
3353    /**
3354     * Add a custom header.
3355     * $name value can be overloaded to contain
3356     * both header name and value (name:value)
3357     * @access public
3358     * @param string $name Custom header name
3359     * @param string $value Header value
3360     * @return void
3361     */
3362    public function addCustomHeader($name, $value = null)
3363    {
3364        if ($value === null) {
3365            // Value passed in as name:value
3366            $this->CustomHeader[] = explode(':', $name, 2);
3367        } else {
3368            $this->CustomHeader[] = array($name, $value);
3369        }
3370    }
3371
3372    /**
3373     * Returns all custom headers.
3374     * @return array
3375     */
3376    public function getCustomHeaders()
3377    {
3378        return $this->CustomHeader;
3379    }
3380
3381    /**
3382     * Create a message body from an HTML string.
3383     * Automatically inlines images and creates a plain-text version by converting the HTML,
3384     * overwriting any existing values in Body and AltBody.
3385     * Do not source $message content from user input!
3386     * $basedir is prepended when handling relative URLs, e.g. <img src="/images/a.png"> and must not be empty
3387     * will look for an image file in $basedir/images/a.png and convert it to inline.
3388     * If you don't provide a $basedir, relative paths will be left untouched (and thus probably break in email)
3389     * If you don't want to apply these transformations to your HTML, just set Body and AltBody directly.
3390     * @access public
3391     * @param string $message HTML message string
3392     * @param string $basedir Absolute path to a base directory to prepend to relative paths to images
3393     * @param boolean|callable $advanced Whether to use the internal HTML to text converter
3394     *    or your own custom converter @see PHPMailer::html2text()
3395     * @return string $message The transformed message Body
3396     */
3397    public function msgHTML($message, $basedir = '', $advanced = false)
3398    {
3399        preg_match_all('/(src|background)=["\'](.*)["\']/Ui', $message, $images);
3400        if (array_key_exists(2, $images)) {
3401            if (strlen($basedir) > 1 && substr($basedir, -1) != '/') {
3402                // Ensure $basedir has a trailing /
3403                $basedir .= '/';
3404            }
3405            foreach ($images[2] as $imgindex => $url) {
3406                // Convert data URIs into embedded images
3407                if (preg_match('#^data:(image[^;,]*)(;base64)?,#', $url, $match)) {
3408                    $data = substr($url, strpos($url, ','));
3409                    if ($match[2]) {
3410                        $data = base64_decode($data);
3411                    } else {
3412                        $data = rawurldecode($data);
3413                    }
3414                    $cid = md5($url) . '@phpmailer.0'; // RFC2392 S 2
3415                    if ($this->addStringEmbeddedImage($data, $cid, 'embed' . $imgindex, 'base64', $match[1])) {
3416                        $message = str_replace(
3417                            $images[0][$imgindex],
3418                            $images[1][$imgindex] . '="cid:' . $cid . '"',
3419                            $message
3420                        );
3421                    }
3422                    continue;
3423                }
3424                if (
3425                    // Only process relative URLs if a basedir is provided (i.e. no absolute local paths)
3426                    !empty($basedir)
3427                    // Ignore URLs containing parent dir traversal (..)
3428                    && (strpos($url, '..') === false)
3429                    // Do not change urls that are already inline images
3430                    && substr($url, 0, 4) !== 'cid:'
3431                    // Do not change absolute URLs, including anonymous protocol
3432                    && !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url)
3433                ) {
3434                    $filename = basename($url);
3435                    $directory = dirname($url);
3436                    if ($directory == '.') {
3437                        $directory = '';
3438                    }
3439                    $cid = md5($url) . '@phpmailer.0'; // RFC2392 S 2
3440                    if (strlen($directory) > 1 && substr($directory, -1) != '/') {
3441                        $directory .= '/';
3442                    }
3443                    if ($this->addEmbeddedImage(
3444                        $basedir . $directory . $filename,
3445                        $cid,
3446                        $filename,
3447                        'base64',
3448                        self::_mime_types((string)self::mb_pathinfo($filename, PATHINFO_EXTENSION))
3449                    )
3450                    ) {
3451                        $message = preg_replace(
3452                            '/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui',
3453                            $images[1][$imgindex] . '="cid:' . $cid . '"',
3454                            $message
3455                        );
3456                    }
3457                }
3458            }
3459        }
3460        $this->isHTML(true);
3461        // Convert all message body line breaks to CRLF, makes quoted-printable encoding work much better
3462        $this->Body = $this->normalizeBreaks($message);
3463        $this->AltBody = $this->normalizeBreaks($this->html2text($message, $advanced));
3464        if (!$this->alternativeExists()) {
3465            $this->AltBody = 'To view this email message, open it in a program that understands HTML!' .
3466                self::CRLF . self::CRLF;
3467        }
3468        return $this->Body;
3469    }
3470
3471    /**
3472     * Convert an HTML string into plain text.
3473     * This is used by msgHTML().
3474     * Note - older versions of this function used a bundled advanced converter
3475     * which was been removed for license reasons in #232.
3476     * Example usage:
3477     * <code>
3478     * // Use default conversion
3479     * $plain = $mail->html2text($html);
3480     * // Use your own custom converter
3481     * $plain = $mail->html2text($html, function($html) {
3482     *     $converter = new MyHtml2text($html);
3483     *     return $converter->get_text();
3484     * });
3485     * </code>
3486     * @param string $html The HTML text to convert
3487     * @param boolean|callable $advanced Any boolean value to use the internal converter,
3488     *   or provide your own callable for custom conversion.
3489     * @return string
3490     */
3491    public function html2text($html, $advanced = false)
3492    {
3493        if (is_callable($advanced)) {
3494            return call_user_func($advanced, $html);
3495        }
3496        return html_entity_decode(
3497            trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))),
3498            ENT_QUOTES,
3499            $this->CharSet
3500        );
3501    }
3502
3503    /**
3504     * Get the MIME type for a file extension.
3505     * @param string $ext File extension
3506     * @access public
3507     * @return string MIME type of file.
3508     * @static
3509     */
3510    public static function _mime_types($ext = '')
3511    {
3512        $mimes = array(
3513            'xl'    => 'application/excel',
3514            'js'    => 'application/javascript',
3515            'hqx'   => 'application/mac-binhex40',
3516            'cpt'   => 'application/mac-compactpro',
3517            'bin'   => 'application/macbinary',
3518            'doc'   => 'application/msword',
3519            'word'  => 'application/msword',
3520            'xlsx'  => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
3521            'xltx'  => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
3522            'potx'  => 'application/vnd.openxmlformats-officedocument.presentationml.template',
3523            'ppsx'  => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
3524            'pptx'  => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
3525            'sldx'  => 'application/vnd.openxmlformats-officedocument.presentationml.slide',
3526            'docx'  => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
3527            'dotx'  => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
3528            'xlam'  => 'application/vnd.ms-excel.addin.macroEnabled.12',
3529            'xlsb'  => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
3530            'class' => 'application/octet-stream',
3531            'dll'   => 'application/octet-stream',
3532            'dms'   => 'application/octet-stream',
3533            'exe'   => 'application/octet-stream',
3534            'lha'   => 'application/octet-stream',
3535            'lzh'   => 'application/octet-stream',
3536            'psd'   => 'application/octet-stream',
3537            'sea'   => 'application/octet-stream',
3538            'so'    => 'application/octet-stream',
3539            'oda'   => 'application/oda',
3540            'pdf'   => 'application/pdf',
3541            'ai'    => 'application/postscript',
3542            'eps'   => 'application/postscript',
3543            'ps'    => 'application/postscript',
3544            'smi'   => 'application/smil',
3545            'smil'  => 'application/smil',
3546            'mif'   => 'application/vnd.mif',
3547            'xls'   => 'application/vnd.ms-excel',
3548            'ppt'   => 'application/vnd.ms-powerpoint',
3549            'wbxml' => 'application/vnd.wap.wbxml',
3550            'wmlc'  => 'application/vnd.wap.wmlc',
3551            'dcr'   => 'application/x-director',
3552            'dir'   => 'application/x-director',
3553            'dxr'   => 'application/x-director',
3554            'dvi'   => 'application/x-dvi',
3555            'gtar'  => 'application/x-gtar',
3556            'php3'  => 'application/x-httpd-php',
3557            'php4'  => 'application/x-httpd-php',
3558            'php'   => 'application/x-httpd-php',
3559            'phtml' => 'application/x-httpd-php',
3560            'phps'  => 'application/x-httpd-php-source',
3561            'swf'   => 'application/x-shockwave-flash',
3562            'sit'   => 'application/x-stuffit',
3563            'tar'   => 'application/x-tar',
3564            'tgz'   => 'application/x-tar',
3565            'xht'   => 'application/xhtml+xml',
3566            'xhtml' => 'application/xhtml+xml',
3567            'zip'   => 'application/zip',
3568            'mid'   => 'audio/midi',
3569            'midi'  => 'audio/midi',
3570            'mp2'   => 'audio/mpeg',
3571            'mp3'   => 'audio/mpeg',
3572            'mpga'  => 'audio/mpeg',
3573            'aif'   => 'audio/x-aiff',
3574            'aifc'  => 'audio/x-aiff',
3575            'aiff'  => 'audio/x-aiff',
3576            'ram'   => 'audio/x-pn-realaudio',
3577            'rm'    => 'audio/x-pn-realaudio',
3578            'rpm'   => 'audio/x-pn-realaudio-plugin',
3579            'ra'    => 'audio/x-realaudio',
3580            'wav'   => 'audio/x-wav',
3581            'bmp'   => 'image/bmp',
3582            'gif'   => 'image/gif',
3583            'jpeg'  => 'image/jpeg',
3584            'jpe'   => 'image/jpeg',
3585            'jpg'   => 'image/jpeg',
3586            'png'   => 'image/png',
3587            'tiff'  => 'image/tiff',
3588            'tif'   => 'image/tiff',
3589            'eml'   => 'message/rfc822',
3590            'css'   => 'text/css',
3591            'html'  => 'text/html',
3592            'htm'   => 'text/html',
3593            'shtml' => 'text/html',
3594            'log'   => 'text/plain',
3595            'text'  => 'text/plain',
3596            'txt'   => 'text/plain',
3597            'rtx'   => 'text/richtext',
3598            'rtf'   => 'text/rtf',
3599            'vcf'   => 'text/vcard',
3600            'vcard' => 'text/vcard',
3601            'xml'   => 'text/xml',
3602            'xsl'   => 'text/xml',
3603            'mpeg'  => 'video/mpeg',
3604            'mpe'   => 'video/mpeg',
3605            'mpg'   => 'video/mpeg',
3606            'mov'   => 'video/quicktime',
3607            'qt'    => 'video/quicktime',
3608            'rv'    => 'video/vnd.rn-realvideo',
3609            'avi'   => 'video/x-msvideo',
3610            'movie' => 'video/x-sgi-movie'
3611        );
3612        if (array_key_exists(strtolower($ext), $mimes)) {
3613            return $mimes[strtolower($ext)];
3614        }
3615        return 'application/octet-stream';
3616    }
3617
3618    /**
3619     * Map a file name to a MIME type.
3620     * Defaults to 'application/octet-stream', i.e.. arbitrary binary data.
3621     * @param string $filename A file name or full path, does not need to exist as a file
3622     * @return string
3623     * @static
3624     */
3625    public static function filenameToType($filename)
3626    {
3627        // In case the path is a URL, strip any query string before getting extension
3628        $qpos = strpos($filename, '?');
3629        if (false !== $qpos) {
3630            $filename = substr($filename, 0, $qpos);
3631        }
3632        $pathinfo = self::mb_pathinfo($filename);
3633        return self::_mime_types($pathinfo['extension']);
3634    }
3635
3636    /**
3637     * Multi-byte-safe pathinfo replacement.
3638     * Drop-in replacement for pathinfo(), but multibyte-safe, cross-platform-safe, old-version-safe.
3639     * Works similarly to the one in PHP >= 5.2.0
3640     * @link http://www.php.net/manual/en/function.pathinfo.php#107461
3641     * @param string $path A filename or path, does not need to exist as a file
3642     * @param integer|string $options Either a PATHINFO_* constant,
3643     *      or a string name to return only the specified piece, allows 'filename' to work on PHP < 5.2
3644     * @return string|array
3645     * @static
3646     */
3647    public static function mb_pathinfo($path, $options = null)
3648    {
3649        $ret = array('dirname' => '', 'basename' => '', 'extension' => '', 'filename' => '');
3650        $pathinfo = array();
3651        if (preg_match('%^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$%im', $path, $pathinfo)) {
3652            if (array_key_exists(1, $pathinfo)) {
3653                $ret['dirname'] = $pathinfo[1];
3654            }
3655            if (array_key_exists(2, $pathinfo)) {
3656                $ret['basename'] = $pathinfo[2];
3657            }
3658            if (array_key_exists(5, $pathinfo)) {
3659                $ret['extension'] = $pathinfo[5];
3660            }
3661            if (array_key_exists(3, $pathinfo)) {
3662                $ret['filename'] = $pathinfo[3];
3663            }
3664        }
3665        switch ($options) {
3666            case PATHINFO_DIRNAME:
3667            case 'dirname':
3668                return $ret['dirname'];
3669            case PATHINFO_BASENAME:
3670            case 'basename':
3671                return $ret['basename'];
3672            case PATHINFO_EXTENSION:
3673            case 'extension':
3674                return $ret['extension'];
3675            case PATHINFO_FILENAME:
3676            case 'filename':
3677                return $ret['filename'];
3678            default:
3679                return $ret;
3680        }
3681    }
3682
3683    /**
3684     * Set or reset instance properties.
3685     * You should avoid this function - it's more verbose, less efficient, more error-prone and
3686     * harder to debug than setting properties directly.
3687     * Usage Example:
3688     * `$mail->set('SMTPSecure', 'tls');`
3689     *   is the same as:
3690     * `$mail->SMTPSecure = 'tls';`
3691     * @access public
3692     * @param string $name The property name to set
3693     * @param mixed $value The value to set the property to
3694     * @return boolean
3695     * @TODO Should this not be using the __set() magic function?
3696     */
3697    public function set($name, $value = '')
3698    {
3699        if (property_exists($this, $name)) {
3700            $this->$name = $value;
3701            return true;
3702        } else {
3703            $this->setError($this->lang('variable_set') . $name);
3704            return false;
3705        }
3706    }
3707
3708    /**
3709     * Strip newlines to prevent header injection.
3710     * @access public
3711     * @param string $str
3712     * @return string
3713     */
3714    public function secureHeader($str)
3715    {
3716        return trim(str_replace(array("\r", "\n"), '', $str));
3717    }
3718
3719    /**
3720     * Normalize line breaks in a string.
3721     * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format.
3722     * Defaults to CRLF (for message bodies) and preserves consecutive breaks.
3723     * @param string $text
3724     * @param string $breaktype What kind of line break to use, defaults to CRLF
3725     * @return string
3726     * @access public
3727     * @static
3728     */
3729    public static function normalizeBreaks($text, $breaktype = "\r\n")
3730    {
3731        return preg_replace('/(\r\n|\r|\n)/ms', $breaktype, $text);
3732    }
3733
3734    /**
3735     * Set the public and private key files and password for S/MIME signing.
3736     * @access public
3737     * @param string $cert_filename
3738     * @param string $key_filename
3739     * @param string $key_pass Password for private key
3740     * @param string $extracerts_filename Optional path to chain certificate
3741     */
3742    public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '')
3743    {
3744        $this->sign_cert_file = $cert_filename;
3745        $this->sign_key_file = $key_filename;
3746        $this->sign_key_pass = $key_pass;
3747        $this->sign_extracerts_file = $extracerts_filename;
3748    }
3749
3750    /**
3751     * Quoted-Printable-encode a DKIM header.
3752     * @access public
3753     * @param string $txt
3754     * @return string
3755     */
3756    public function DKIM_QP($txt)
3757    {
3758        $line = '';
3759        for ($i = 0; $i < strlen($txt); $i++) {
3760            $ord = ord($txt[$i]);
3761            if (((0x21 <= $ord) && ($ord <= 0x3A)) || $ord == 0x3C || ((0x3E <= $ord) && ($ord <= 0x7E))) {
3762                $line .= $txt[$i];
3763            } else {
3764                $line .= '=' . sprintf('%02X', $ord);
3765            }
3766        }
3767        return $line;
3768    }
3769
3770    /**
3771     * Generate a DKIM signature.
3772     * @access public
3773     * @param string $signHeader
3774     * @throws phpmailerException
3775     * @return string The DKIM signature value
3776     */
3777    public function DKIM_Sign($signHeader)
3778    {
3779        if (!defined('PKCS7_TEXT')) {
3780            if ($this->exceptions) {
3781                throw new phpmailerException($this->lang('extension_missing') . 'openssl');
3782            }
3783            return '';
3784        }
3785        $privKeyStr = !empty($this->DKIM_private_string) ? $this->DKIM_private_string : file_get_contents($this->DKIM_private);
3786        if ('' != $this->DKIM_passphrase) {
3787            $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
3788        } else {
3789            $privKey = openssl_pkey_get_private($privKeyStr);
3790        }
3791        //Workaround for missing digest algorithms in old PHP & OpenSSL versions
3792        //@link http://stackoverflow.com/a/11117338/333340
3793        if (version_compare(PHP_VERSION, '5.3.0') >= 0 and
3794            in_array('sha256WithRSAEncryption', openssl_get_md_methods(true))) {
3795            if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) {
3796                openssl_pkey_free($privKey);
3797                return base64_encode($signature);
3798            }
3799        } else {
3800            $pinfo = openssl_pkey_get_details($privKey);
3801            $hash = hash('sha256', $signHeader);
3802            //'Magic' constant for SHA256 from RFC3447
3803            //@link https://tools.ietf.org/html/rfc3447#page-43
3804            $t = '3031300d060960864801650304020105000420' . $hash;
3805            $pslen = $pinfo['bits'] / 8 - (strlen($t) / 2 + 3);
3806            $eb = pack('H*', '0001' . str_repeat('FF', $pslen) . '00' . $t);
3807
3808            if (openssl_private_encrypt($eb, $signature, $privKey, OPENSSL_NO_PADDING)) {
3809                openssl_pkey_free($privKey);
3810                return base64_encode($signature);
3811            }
3812        }
3813        openssl_pkey_free($privKey);
3814        return '';
3815    }
3816
3817    /**
3818     * Generate a DKIM canonicalization header.
3819     * @access public
3820     * @param string $signHeader Header
3821     * @return string
3822     */
3823    public function DKIM_HeaderC($signHeader)
3824    {
3825        $signHeader = preg_replace('/\r\n\s+/', ' ', $signHeader);
3826        $lines = explode("\r\n", $signHeader);
3827        foreach ($lines as $key => $line) {
3828            list($heading, $value) = explode(':', $line, 2);
3829            $heading = strtolower($heading);
3830            $value = preg_replace('/\s{2,}/', ' ', $value); // Compress useless spaces
3831            $lines[$key] = $heading . ':' . trim($value); // Don't forget to remove WSP around the value
3832        }
3833        $signHeader = implode("\r\n", $lines);
3834        return $signHeader;
3835    }
3836
3837    /**
3838     * Generate a DKIM canonicalization body.
3839     * @access public
3840     * @param string $body Message Body
3841     * @return string
3842     */
3843    public function DKIM_BodyC($body)
3844    {
3845        if ($body == '') {
3846            return "\r\n";
3847        }
3848        // stabilize line endings
3849        $body = str_replace("\r\n", "\n", $body);
3850        $body = str_replace("\n", "\r\n", $body);
3851        // END stabilize line endings
3852        while (substr($body, strlen($body) - 4, 4) == "\r\n\r\n") {
3853            $body = substr($body, 0, strlen($body) - 2);
3854        }
3855        return $body;
3856    }
3857
3858    /**
3859     * Create the DKIM header and body in a new message header.
3860     * @access public
3861     * @param string $headers_line Header lines
3862     * @param string $subject Subject
3863     * @param string $body Body
3864     * @return string
3865     */
3866    public function DKIM_Add($headers_line, $subject, $body)
3867    {
3868        $DKIMsignatureType = 'rsa-sha256'; // Signature & hash algorithms
3869        $DKIMcanonicalization = 'relaxed/simple'; // Canonicalization of header/body
3870        $DKIMquery = 'dns/txt'; // Query method
3871        $DKIMtime = time(); // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone)
3872        $subject_header = "Subject: $subject";
3873        $headers = explode($this->LE, $headers_line);
3874        $from_header = '';
3875        $to_header = '';
3876        $date_header = '';
3877        $current = '';
3878        foreach ($headers as $header) {
3879            if (strpos($header, 'From:') === 0) {
3880                $from_header = $header;
3881                $current = 'from_header';
3882            } elseif (strpos($header, 'To:') === 0) {
3883                $to_header = $header;
3884                $current = 'to_header';
3885            } elseif (strpos($header, 'Date:') === 0) {
3886                $date_header = $header;
3887                $current = 'date_header';
3888            } else {
3889                if (!empty($$current) && strpos($header, ' =?') === 0) {
3890                    $$current .= $header;
3891                } else {
3892                    $current = '';
3893                }
3894            }
3895        }
3896        $from = str_replace('|', '=7C', $this->DKIM_QP($from_header));
3897        $to = str_replace('|', '=7C', $this->DKIM_QP($to_header));
3898        $date = str_replace('|', '=7C', $this->DKIM_QP($date_header));
3899        $subject = str_replace(
3900            '|',
3901            '=7C',
3902            $this->DKIM_QP($subject_header)
3903        ); // Copied header fields (dkim-quoted-printable)
3904        $body = $this->DKIM_BodyC($body);
3905        $DKIMlen = strlen($body); // Length of body
3906        $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body))); // Base64 of packed binary SHA-256 hash of body
3907        if ('' == $this->DKIM_identity) {
3908            $ident = '';
3909        } else {
3910            $ident = ' i=' . $this->DKIM_identity . ';';
3911        }
3912        $dkimhdrs = 'DKIM-Signature: v=1; a=' .
3913            $DKIMsignatureType . '; q=' .
3914            $DKIMquery . '; l=' .
3915            $DKIMlen . '; s=' .
3916            $this->DKIM_selector .
3917            ";\r\n" .
3918            "\tt=" . $DKIMtime . '; c=' . $DKIMcanonicalization . ";\r\n" .
3919            "\th=From:To:Date:Subject;\r\n" .
3920            "\td=" . $this->DKIM_domain . ';' . $ident . "\r\n" .
3921            "\tz=$from\r\n" .
3922            "\t|$to\r\n" .
3923            "\t|$date\r\n" .
3924            "\t|$subject;\r\n" .
3925            "\tbh=" . $DKIMb64 . ";\r\n" .
3926            "\tb=";
3927        $toSign = $this->DKIM_HeaderC(
3928            $from_header . "\r\n" .
3929            $to_header . "\r\n" .
3930            $date_header . "\r\n" .
3931            $subject_header . "\r\n" .
3932            $dkimhdrs
3933        );
3934        $signed = $this->DKIM_Sign($toSign);
3935        return $dkimhdrs . $signed . "\r\n";
3936    }
3937
3938    /**
3939     * Detect if a string contains a line longer than the maximum line length allowed.
3940     * @param string $str
3941     * @return boolean
3942     * @static
3943     */
3944    public static function hasLineLongerThanMax($str)
3945    {
3946        //+2 to include CRLF line break for a 1000 total
3947        return (boolean)preg_match('/^(.{'.(self::MAX_LINE_LENGTH + 2).',})/m', $str);
3948    }
3949
3950    /**
3951     * Allows for public read access to 'to' property.
3952     * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
3953     * @access public
3954     * @return array
3955     */
3956    public function getToAddresses()
3957    {
3958        return $this->to;
3959    }
3960
3961    /**
3962     * Allows for public read access to 'cc' property.
3963     * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
3964     * @access public
3965     * @return array
3966     */
3967    public function getCcAddresses()
3968    {
3969        return $this->cc;
3970    }
3971
3972    /**
3973     * Allows for public read access to 'bcc' property.
3974     * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
3975     * @access public
3976     * @return array
3977     */
3978    public function getBccAddresses()
3979    {
3980        return $this->bcc;
3981    }
3982
3983    /**
3984     * Allows for public read access to 'ReplyTo' property.
3985     * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
3986     * @access public
3987     * @return array
3988     */
3989    public function getReplyToAddresses()
3990    {
3991        return $this->ReplyTo;
3992    }
3993
3994    /**
3995     * Allows for public read access to 'all_recipients' property.
3996     * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
3997     * @access public
3998     * @return array
3999     */
4000    public function getAllRecipientAddresses()
4001    {
4002        return $this->all_recipients;
4003    }
4004
4005    /**
4006     * Perform a callback.
4007     * @param boolean $isSent
4008     * @param array $to
4009     * @param array $cc
4010     * @param array $bcc
4011     * @param string $subject
4012     * @param string $body
4013     * @param string $from
4014     */
4015    protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from)
4016    {
4017        if (!empty($this->action_function) && is_callable($this->action_function)) {
4018            $params = array($isSent, $to, $cc, $bcc, $subject, $body, $from);
4019            call_user_func_array($this->action_function, $params);
4020        }
4021    }
4022}
4023
4024/**
4025 * PHPMailer exception handler
4026 * @package PHPMailer
4027 */
4028class phpmailerException extends Exception
4029{
4030    /**
4031     * Prettify error message output
4032     * @return string
4033     */
4034    public function errorMessage()
4035    {
4036        $errorMsg = '<strong>' . $this->getMessage() . "</strong><br />\n";
4037        return $errorMsg;
4038    }
4039}