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1 <?php 2 3 /** 4 * PHPMailer - PHP email creation and transport class. 5 * PHP Version 5.5. 6 * 7 * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project 8 * 9 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk> 10 * @author Jim Jagielski (jimjag) <jimjag@gmail.com> 11 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net> 12 * @author Brent R. Matzelle (original founder) 13 * @copyright 2012 - 2020 Marcus Bointon 14 * @copyright 2010 - 2012 Jim Jagielski 15 * @copyright 2004 - 2009 Andy Prevost 16 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License 17 * @note This program is distributed in the hope that it will be useful - WITHOUT 18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 19 * FITNESS FOR A PARTICULAR PURPOSE. 20 */ 21 22 namespace PHPMailer\PHPMailer; 23 24 /** 25 * PHPMailer - PHP email creation and transport class. 26 * 27 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk> 28 * @author Jim Jagielski (jimjag) <jimjag@gmail.com> 29 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net> 30 * @author Brent R. Matzelle (original founder) 31 */ 32 class PHPMailer 33 { 34 const CHARSET_ASCII = 'us-ascii'; 35 const CHARSET_ISO88591 = 'iso-8859-1'; 36 const CHARSET_UTF8 = 'utf-8'; 37 38 const CONTENT_TYPE_PLAINTEXT = 'text/plain'; 39 const CONTENT_TYPE_TEXT_CALENDAR = 'text/calendar'; 40 const CONTENT_TYPE_TEXT_HTML = 'text/html'; 41 const CONTENT_TYPE_MULTIPART_ALTERNATIVE = 'multipart/alternative'; 42 const CONTENT_TYPE_MULTIPART_MIXED = 'multipart/mixed'; 43 const CONTENT_TYPE_MULTIPART_RELATED = 'multipart/related'; 44 45 const ENCODING_7BIT = '7bit'; 46 const ENCODING_8BIT = '8bit'; 47 const ENCODING_BASE64 = 'base64'; 48 const ENCODING_BINARY = 'binary'; 49 const ENCODING_QUOTED_PRINTABLE = 'quoted-printable'; 50 51 const ENCRYPTION_STARTTLS = 'tls'; 52 const ENCRYPTION_SMTPS = 'ssl'; 53 54 const ICAL_METHOD_REQUEST = 'REQUEST'; 55 const ICAL_METHOD_PUBLISH = 'PUBLISH'; 56 const ICAL_METHOD_REPLY = 'REPLY'; 57 const ICAL_METHOD_ADD = 'ADD'; 58 const ICAL_METHOD_CANCEL = 'CANCEL'; 59 const ICAL_METHOD_REFRESH = 'REFRESH'; 60 const ICAL_METHOD_COUNTER = 'COUNTER'; 61 const ICAL_METHOD_DECLINECOUNTER = 'DECLINECOUNTER'; 62 63 /** 64 * Email priority. 65 * Options: null (default), 1 = High, 3 = Normal, 5 = low. 66 * When null, the header is not set at all. 67 * 68 * @var int|null 69 */ 70 public $Priority; 71 72 /** 73 * The character set of the message. 74 * 75 * @var string 76 */ 77 public $CharSet = self::CHARSET_ISO88591; 78 79 /** 80 * The MIME Content-type of the message. 81 * 82 * @var string 83 */ 84 public $ContentType = self::CONTENT_TYPE_PLAINTEXT; 85 86 /** 87 * The message encoding. 88 * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable". 89 * 90 * @var string 91 */ 92 public $Encoding = self::ENCODING_8BIT; 93 94 /** 95 * Holds the most recent mailer error message. 96 * 97 * @var string 98 */ 99 public $ErrorInfo = ''; 100 101 /** 102 * The From email address for the message. 103 * 104 * @var string 105 */ 106 public $From = ''; 107 108 /** 109 * The From name of the message. 110 * 111 * @var string 112 */ 113 public $FromName = ''; 114 115 /** 116 * The envelope sender of the message. 117 * This will usually be turned into a Return-Path header by the receiver, 118 * and is the address that bounces will be sent to. 119 * If not empty, will be passed via `-f` to sendmail or as the 'MAIL FROM' value over SMTP. 120 * 121 * @var string 122 */ 123 public $Sender = ''; 124 125 /** 126 * The Subject of the message. 127 * 128 * @var string 129 */ 130 public $Subject = ''; 131 132 /** 133 * An HTML or plain text message body. 134 * If HTML then call isHTML(true). 135 * 136 * @var string 137 */ 138 public $Body = ''; 139 140 /** 141 * The plain-text message body. 142 * This body can be read by mail clients that do not have HTML email 143 * capability such as mutt & Eudora. 144 * Clients that can read HTML will view the normal Body. 145 * 146 * @var string 147 */ 148 public $AltBody = ''; 149 150 /** 151 * An iCal message part body. 152 * Only supported in simple alt or alt_inline message types 153 * To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator. 154 * 155 * @see http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/ 156 * @see http://kigkonsult.se/iCalcreator/ 157 * 158 * @var string 159 */ 160 public $Ical = ''; 161 162 /** 163 * Value-array of "method" in Contenttype header "text/calendar" 164 * 165 * @var string[] 166 */ 167 protected static $IcalMethods = [ 168 self::ICAL_METHOD_REQUEST, 169 self::ICAL_METHOD_PUBLISH, 170 self::ICAL_METHOD_REPLY, 171 self::ICAL_METHOD_ADD, 172 self::ICAL_METHOD_CANCEL, 173 self::ICAL_METHOD_REFRESH, 174 self::ICAL_METHOD_COUNTER, 175 self::ICAL_METHOD_DECLINECOUNTER, 176 ]; 177 178 /** 179 * The complete compiled MIME message body. 180 * 181 * @var string 182 */ 183 protected $MIMEBody = ''; 184 185 /** 186 * The complete compiled MIME message headers. 187 * 188 * @var string 189 */ 190 protected $MIMEHeader = ''; 191 192 /** 193 * Extra headers that createHeader() doesn't fold in. 194 * 195 * @var string 196 */ 197 protected $mailHeader = ''; 198 199 /** 200 * Word-wrap the message body to this number of chars. 201 * Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance. 202 * 203 * @see static::STD_LINE_LENGTH 204 * 205 * @var int 206 */ 207 public $WordWrap = 0; 208 209 /** 210 * Which method to use to send mail. 211 * Options: "mail", "sendmail", or "smtp". 212 * 213 * @var string 214 */ 215 public $Mailer = 'mail'; 216 217 /** 218 * The path to the sendmail program. 219 * 220 * @var string 221 */ 222 public $Sendmail = '/usr/sbin/sendmail'; 223 224 /** 225 * Whether mail() uses a fully sendmail-compatible MTA. 226 * One which supports sendmail's "-oi -f" options. 227 * 228 * @var bool 229 */ 230 public $UseSendmailOptions = true; 231 232 /** 233 * The email address that a reading confirmation should be sent to, also known as read receipt. 234 * 235 * @var string 236 */ 237 public $ConfirmReadingTo = ''; 238 239 /** 240 * The hostname to use in the Message-ID header and as default HELO string. 241 * If empty, PHPMailer attempts to find one with, in order, 242 * $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value 243 * 'localhost.localdomain'. 244 * 245 * @see PHPMailer::$Helo 246 * 247 * @var string 248 */ 249 public $Hostname = ''; 250 251 /** 252 * An ID to be used in the Message-ID header. 253 * If empty, a unique id will be generated. 254 * You can set your own, but it must be in the format "<id@domain>", 255 * as defined in RFC5322 section 3.6.4 or it will be ignored. 256 * 257 * @see https://tools.ietf.org/html/rfc5322#section-3.6.4 258 * 259 * @var string 260 */ 261 public $MessageID = ''; 262 263 /** 264 * The message Date to be used in the Date header. 265 * If empty, the current date will be added. 266 * 267 * @var string 268 */ 269 public $MessageDate = ''; 270 271 /** 272 * SMTP hosts. 273 * Either a single hostname or multiple semicolon-delimited hostnames. 274 * You can also specify a different port 275 * for each host by using this format: [hostname:port] 276 * (e.g. "smtp1.example.com:25;smtp2.example.com"). 277 * You can also specify encryption type, for example: 278 * (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465"). 279 * Hosts will be tried in order. 280 * 281 * @var string 282 */ 283 public $Host = 'localhost'; 284 285 /** 286 * The default SMTP server port. 287 * 288 * @var int 289 */ 290 public $Port = 25; 291 292 /** 293 * The SMTP HELO/EHLO name used for the SMTP connection. 294 * Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find 295 * one with the same method described above for $Hostname. 296 * 297 * @see PHPMailer::$Hostname 298 * 299 * @var string 300 */ 301 public $Helo = ''; 302 303 /** 304 * What kind of encryption to use on the SMTP connection. 305 * Options: '', static::ENCRYPTION_STARTTLS, or static::ENCRYPTION_SMTPS. 306 * 307 * @var string 308 */ 309 public $SMTPSecure = ''; 310 311 /** 312 * Whether to enable TLS encryption automatically if a server supports it, 313 * even if `SMTPSecure` is not set to 'tls'. 314 * Be aware that in PHP >= 5.6 this requires that the server's certificates are valid. 315 * 316 * @var bool 317 */ 318 public $SMTPAutoTLS = true; 319 320 /** 321 * Whether to use SMTP authentication. 322 * Uses the Username and Password properties. 323 * 324 * @see PHPMailer::$Username 325 * @see PHPMailer::$Password 326 * 327 * @var bool 328 */ 329 public $SMTPAuth = false; 330 331 /** 332 * Options array passed to stream_context_create when connecting via SMTP. 333 * 334 * @var array 335 */ 336 public $SMTPOptions = []; 337 338 /** 339 * SMTP username. 340 * 341 * @var string 342 */ 343 public $Username = ''; 344 345 /** 346 * SMTP password. 347 * 348 * @var string 349 */ 350 public $Password = ''; 351 352 /** 353 * SMTP auth type. 354 * Options are CRAM-MD5, LOGIN, PLAIN, XOAUTH2, attempted in that order if not specified. 355 * 356 * @var string 357 */ 358 public $AuthType = ''; 359 360 /** 361 * An implementation of the PHPMailer OAuthTokenProvider interface. 362 * 363 * @var OAuthTokenProvider 364 */ 365 protected $oauth; 366 367 /** 368 * The SMTP server timeout in seconds. 369 * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2. 370 * 371 * @var int 372 */ 373 public $Timeout = 300; 374 375 /** 376 * Comma separated list of DSN notifications 377 * 'NEVER' under no circumstances a DSN must be returned to the sender. 378 * If you use NEVER all other notifications will be ignored. 379 * 'SUCCESS' will notify you when your mail has arrived at its destination. 380 * 'FAILURE' will arrive if an error occurred during delivery. 381 * 'DELAY' will notify you if there is an unusual delay in delivery, but the actual 382 * delivery's outcome (success or failure) is not yet decided. 383 * 384 * @see https://tools.ietf.org/html/rfc3461 See section 4.1 for more information about NOTIFY 385 */ 386 public $dsn = ''; 387 388 /** 389 * SMTP class debug output mode. 390 * Debug output level. 391 * Options: 392 * @see SMTP::DEBUG_OFF: No output 393 * @see SMTP::DEBUG_CLIENT: Client messages 394 * @see SMTP::DEBUG_SERVER: Client and server messages 395 * @see SMTP::DEBUG_CONNECTION: As SERVER plus connection status 396 * @see SMTP::DEBUG_LOWLEVEL: Noisy, low-level data output, rarely needed 397 * 398 * @see SMTP::$do_debug 399 * 400 * @var int 401 */ 402 public $SMTPDebug = 0; 403 404 /** 405 * How to handle debug output. 406 * Options: 407 * * `echo` Output plain-text as-is, appropriate for CLI 408 * * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output 409 * * `error_log` Output to error log as configured in php.ini 410 * By default PHPMailer will use `echo` if run from a `cli` or `cli-server` SAPI, `html` otherwise. 411 * Alternatively, you can provide a callable expecting two params: a message string and the debug level: 412 * 413 * ```php 414 * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";}; 415 * ``` 416 * 417 * Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug` 418 * level output is used: 419 * 420 * ```php 421 * $mail->Debugoutput = new myPsr3Logger; 422 * ``` 423 * 424 * @see SMTP::$Debugoutput 425 * 426 * @var string|callable|\Psr\Log\LoggerInterface 427 */ 428 public $Debugoutput = 'echo'; 429 430 /** 431 * Whether to keep the SMTP connection open after each message. 432 * If this is set to true then the connection will remain open after a send, 433 * and closing the connection will require an explicit call to smtpClose(). 434 * It's a good idea to use this if you are sending multiple messages as it reduces overhead. 435 * See the mailing list example for how to use it. 436 * 437 * @var bool 438 */ 439 public $SMTPKeepAlive = false; 440 441 /** 442 * Whether to split multiple to addresses into multiple messages 443 * or send them all in one message. 444 * Only supported in `mail` and `sendmail` transports, not in SMTP. 445 * 446 * @var bool 447 * 448 * @deprecated 6.0.0 PHPMailer isn't a mailing list manager! 449 */ 450 public $SingleTo = false; 451 452 /** 453 * Storage for addresses when SingleTo is enabled. 454 * 455 * @var array 456 */ 457 protected $SingleToArray = []; 458 459 /** 460 * Whether to generate VERP addresses on send. 461 * Only applicable when sending via SMTP. 462 * 463 * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path 464 * @see http://www.postfix.org/VERP_README.html Postfix VERP info 465 * 466 * @var bool 467 */ 468 public $do_verp = false; 469 470 /** 471 * Whether to allow sending messages with an empty body. 472 * 473 * @var bool 474 */ 475 public $AllowEmpty = false; 476 477 /** 478 * DKIM selector. 479 * 480 * @var string 481 */ 482 public $DKIM_selector = ''; 483 484 /** 485 * DKIM Identity. 486 * Usually the email address used as the source of the email. 487 * 488 * @var string 489 */ 490 public $DKIM_identity = ''; 491 492 /** 493 * DKIM passphrase. 494 * Used if your key is encrypted. 495 * 496 * @var string 497 */ 498 public $DKIM_passphrase = ''; 499 500 /** 501 * DKIM signing domain name. 502 * 503 * @example 'example.com' 504 * 505 * @var string 506 */ 507 public $DKIM_domain = ''; 508 509 /** 510 * DKIM Copy header field values for diagnostic use. 511 * 512 * @var bool 513 */ 514 public $DKIM_copyHeaderFields = true; 515 516 /** 517 * DKIM Extra signing headers. 518 * 519 * @example ['List-Unsubscribe', 'List-Help'] 520 * 521 * @var array 522 */ 523 public $DKIM_extraHeaders = []; 524 525 /** 526 * DKIM private key file path. 527 * 528 * @var string 529 */ 530 public $DKIM_private = ''; 531 532 /** 533 * DKIM private key string. 534 * 535 * If set, takes precedence over `$DKIM_private`. 536 * 537 * @var string 538 */ 539 public $DKIM_private_string = ''; 540 541 /** 542 * Callback Action function name. 543 * 544 * The function that handles the result of the send email action. 545 * It is called out by send() for each email sent. 546 * 547 * Value can be any php callable: http://www.php.net/is_callable 548 * 549 * Parameters: 550 * bool $result result of the send action 551 * array $to email addresses of the recipients 552 * array $cc cc email addresses 553 * array $bcc bcc email addresses 554 * string $subject the subject 555 * string $body the email body 556 * string $from email address of sender 557 * string $extra extra information of possible use 558 * "smtp_transaction_id' => last smtp transaction id 559 * 560 * @var string 561 */ 562 public $action_function = ''; 563 564 /** 565 * What to put in the X-Mailer header. 566 * Options: An empty string for PHPMailer default, whitespace/null for none, or a string to use. 567 * 568 * @var string|null 569 */ 570 public $XMailer = ''; 571 572 /** 573 * Which validator to use by default when validating email addresses. 574 * May be a callable to inject your own validator, but there are several built-in validators. 575 * The default validator uses PHP's FILTER_VALIDATE_EMAIL filter_var option. 576 * 577 * @see PHPMailer::validateAddress() 578 * 579 * @var string|callable 580 */ 581 public static $validator = 'php'; 582 583 /** 584 * An instance of the SMTP sender class. 585 * 586 * @var SMTP 587 */ 588 protected $smtp; 589 590 /** 591 * The array of 'to' names and addresses. 592 * 593 * @var array 594 */ 595 protected $to = []; 596 597 /** 598 * The array of 'cc' names and addresses. 599 * 600 * @var array 601 */ 602 protected $cc = []; 603 604 /** 605 * The array of 'bcc' names and addresses. 606 * 607 * @var array 608 */ 609 protected $bcc = []; 610 611 /** 612 * The array of reply-to names and addresses. 613 * 614 * @var array 615 */ 616 protected $ReplyTo = []; 617 618 /** 619 * An array of all kinds of addresses. 620 * Includes all of $to, $cc, $bcc. 621 * 622 * @see PHPMailer::$to 623 * @see PHPMailer::$cc 624 * @see PHPMailer::$bcc 625 * 626 * @var array 627 */ 628 protected $all_recipients = []; 629 630 /** 631 * An array of names and addresses queued for validation. 632 * In send(), valid and non duplicate entries are moved to $all_recipients 633 * and one of $to, $cc, or $bcc. 634 * This array is used only for addresses with IDN. 635 * 636 * @see PHPMailer::$to 637 * @see PHPMailer::$cc 638 * @see PHPMailer::$bcc 639 * @see PHPMailer::$all_recipients 640 * 641 * @var array 642 */ 643 protected $RecipientsQueue = []; 644 645 /** 646 * An array of reply-to names and addresses queued for validation. 647 * In send(), valid and non duplicate entries are moved to $ReplyTo. 648 * This array is used only for addresses with IDN. 649 * 650 * @see PHPMailer::$ReplyTo 651 * 652 * @var array 653 */ 654 protected $ReplyToQueue = []; 655 656 /** 657 * The array of attachments. 658 * 659 * @var array 660 */ 661 protected $attachment = []; 662 663 /** 664 * The array of custom headers. 665 * 666 * @var array 667 */ 668 protected $CustomHeader = []; 669 670 /** 671 * The most recent Message-ID (including angular brackets). 672 * 673 * @var string 674 */ 675 protected $lastMessageID = ''; 676 677 /** 678 * The message's MIME type. 679 * 680 * @var string 681 */ 682 protected $message_type = ''; 683 684 /** 685 * The array of MIME boundary strings. 686 * 687 * @var array 688 */ 689 protected $boundary = []; 690 691 /** 692 * The array of available text strings for the current language. 693 * 694 * @var array 695 */ 696 protected $language = []; 697 698 /** 699 * The number of errors encountered. 700 * 701 * @var int 702 */ 703 protected $error_count = 0; 704 705 /** 706 * The S/MIME certificate file path. 707 * 708 * @var string 709 */ 710 protected $sign_cert_file = ''; 711 712 /** 713 * The S/MIME key file path. 714 * 715 * @var string 716 */ 717 protected $sign_key_file = ''; 718 719 /** 720 * The optional S/MIME extra certificates ("CA Chain") file path. 721 * 722 * @var string 723 */ 724 protected $sign_extracerts_file = ''; 725 726 /** 727 * The S/MIME password for the key. 728 * Used only if the key is encrypted. 729 * 730 * @var string 731 */ 732 protected $sign_key_pass = ''; 733 734 /** 735 * Whether to throw exceptions for errors. 736 * 737 * @var bool 738 */ 739 protected $exceptions = false; 740 741 /** 742 * Unique ID used for message ID and boundaries. 743 * 744 * @var string 745 */ 746 protected $uniqueid = ''; 747 748 /** 749 * The PHPMailer Version number. 750 * 751 * @var string 752 */ 753 const VERSION = '6.6.0'; 754 755 /** 756 * Error severity: message only, continue processing. 757 * 758 * @var int 759 */ 760 const STOP_MESSAGE = 0; 761 762 /** 763 * Error severity: message, likely ok to continue processing. 764 * 765 * @var int 766 */ 767 const STOP_CONTINUE = 1; 768 769 /** 770 * Error severity: message, plus full stop, critical error reached. 771 * 772 * @var int 773 */ 774 const STOP_CRITICAL = 2; 775 776 /** 777 * The SMTP standard CRLF line break. 778 * If you want to change line break format, change static::$LE, not this. 779 */ 780 const CRLF = "\r\n"; 781 782 /** 783 * "Folding White Space" a white space string used for line folding. 784 */ 785 const FWS = ' '; 786 787 /** 788 * SMTP RFC standard line ending; Carriage Return, Line Feed. 789 * 790 * @var string 791 */ 792 protected static $LE = self::CRLF; 793 794 /** 795 * The maximum line length supported by mail(). 796 * 797 * Background: mail() will sometimes corrupt messages 798 * with headers headers longer than 65 chars, see #818. 799 * 800 * @var int 801 */ 802 const MAIL_MAX_LINE_LENGTH = 63; 803 804 /** 805 * The maximum line length allowed by RFC 2822 section 2.1.1. 806 * 807 * @var int 808 */ 809 const MAX_LINE_LENGTH = 998; 810 811 /** 812 * The lower maximum line length allowed by RFC 2822 section 2.1.1. 813 * This length does NOT include the line break 814 * 76 means that lines will be 77 or 78 chars depending on whether 815 * the line break format is LF or CRLF; both are valid. 816 * 817 * @var int 818 */ 819 const STD_LINE_LENGTH = 76; 820 821 /** 822 * Constructor. 823 * 824 * @param bool $exceptions Should we throw external exceptions? 825 */ 826 public function __construct($exceptions = null) 827 { 828 if (null !== $exceptions) { 829 $this->exceptions = (bool) $exceptions; 830 } 831 //Pick an appropriate debug output format automatically 832 $this->Debugoutput = (strpos(PHP_SAPI, 'cli') !== false ? 'echo' : 'html'); 833 } 834 835 /** 836 * Destructor. 837 */ 838 public function __destruct() 839 { 840 //Close any open SMTP connection nicely 841 $this->smtpClose(); 842 } 843 844 /** 845 * Call mail() in a safe_mode-aware fashion. 846 * Also, unless sendmail_path points to sendmail (or something that 847 * claims to be sendmail), don't pass params (not a perfect fix, 848 * but it will do). 849 * 850 * @param string $to To 851 * @param string $subject Subject 852 * @param string $body Message Body 853 * @param string $header Additional Header(s) 854 * @param string|null $params Params 855 * 856 * @return bool 857 */ 858 private function mailPassthru($to, $subject, $body, $header, $params) 859 { 860 //Check overloading of mail function to avoid double-encoding 861 if (ini_get('mbstring.func_overload') & 1) { // phpcs:ignore PHPCompatibility.IniDirectives.RemovedIniDirectives.mbstring_func_overloadDeprecated 862 $subject = $this->secureHeader($subject); 863 } else { 864 $subject = $this->encodeHeader($this->secureHeader($subject)); 865 } 866 //Calling mail() with null params breaks 867 $this->edebug('Sending with mail()'); 868 $this->edebug('Sendmail path: ' . ini_get('sendmail_path')); 869 $this->edebug("Envelope sender: {$this->Sender}"); 870 $this->edebug("To: {$to}"); 871 $this->edebug("Subject: {$subject}"); 872 $this->edebug("Headers: {$header}"); 873 if (!$this->UseSendmailOptions || null === $params) { 874 $result = @mail($to, $subject, $body, $header); 875 } else { 876 $this->edebug("Additional params: {$params}"); 877 $result = @mail($to, $subject, $body, $header, $params); 878 } 879 $this->edebug('Result: ' . ($result ? 'true' : 'false')); 880 return $result; 881 } 882 883 /** 884 * Output debugging info via a user-defined method. 885 * Only generates output if debug output is enabled. 886 * 887 * @see PHPMailer::$Debugoutput 888 * @see PHPMailer::$SMTPDebug 889 * 890 * @param string $str 891 */ 892 protected function edebug($str) 893 { 894 if ($this->SMTPDebug <= 0) { 895 return; 896 } 897 //Is this a PSR-3 logger? 898 if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) { 899 $this->Debugoutput->debug($str); 900 901 return; 902 } 903 //Avoid clash with built-in function names 904 if (is_callable($this->Debugoutput) && !in_array($this->Debugoutput, ['error_log', 'html', 'echo'])) { 905 call_user_func($this->Debugoutput, $str, $this->SMTPDebug); 906 907 return; 908 } 909 switch ($this->Debugoutput) { 910 case 'error_log': 911 //Don't output, just log 912 /** @noinspection ForgottenDebugOutputInspection */ 913 error_log($str); 914 break; 915 case 'html': 916 //Cleans up output a bit for a better looking, HTML-safe output 917 echo htmlentities( 918 preg_replace('/[\r\n]+/', '', $str), 919 ENT_QUOTES, 920 'UTF-8' 921 ), "<br>\n"; 922 break; 923 case 'echo': 924 default: 925 //Normalize line breaks 926 $str = preg_replace('/\r\n|\r/m', "\n", $str); 927 echo gmdate('Y-m-d H:i:s'), 928 "\t", 929 //Trim trailing space 930 trim( 931 //Indent for readability, except for trailing break 932 str_replace( 933 "\n", 934 "\n \t ", 935 trim($str) 936 ) 937 ), 938 "\n"; 939 } 940 } 941 942 /** 943 * Sets message type to HTML or plain. 944 * 945 * @param bool $isHtml True for HTML mode 946 */ 947 public function isHTML($isHtml = true) 948 { 949 if ($isHtml) { 950 $this->ContentType = static::CONTENT_TYPE_TEXT_HTML; 951 } else { 952 $this->ContentType = static::CONTENT_TYPE_PLAINTEXT; 953 } 954 } 955 956 /** 957 * Send messages using SMTP. 958 */ 959 public function isSMTP() 960 { 961 $this->Mailer = 'smtp'; 962 } 963 964 /** 965 * Send messages using PHP's mail() function. 966 */ 967 public function isMail() 968 { 969 $this->Mailer = 'mail'; 970 } 971 972 /** 973 * Send messages using $Sendmail. 974 */ 975 public function isSendmail() 976 { 977 $ini_sendmail_path = ini_get('sendmail_path'); 978 979 if (false === stripos($ini_sendmail_path, 'sendmail')) { 980 $this->Sendmail = '/usr/sbin/sendmail'; 981 } else { 982 $this->Sendmail = $ini_sendmail_path; 983 } 984 $this->Mailer = 'sendmail'; 985 } 986 987 /** 988 * Send messages using qmail. 989 */ 990 public function isQmail() 991 { 992 $ini_sendmail_path = ini_get('sendmail_path'); 993 994 if (false === stripos($ini_sendmail_path, 'qmail')) { 995 $this->Sendmail = '/var/qmail/bin/qmail-inject'; 996 } else { 997 $this->Sendmail = $ini_sendmail_path; 998 } 999 $this->Mailer = 'qmail'; 1000 } 1001 1002 /** 1003 * Add a "To" address. 1004 * 1005 * @param string $address The email address to send to 1006 * @param string $name 1007 * 1008 * @throws Exception 1009 * 1010 * @return bool true on success, false if address already used or invalid in some way 1011 */ 1012 public function addAddress($address, $name = '') 1013 { 1014 return $this->addOrEnqueueAnAddress('to', $address, $name); 1015 } 1016 1017 /** 1018 * Add a "CC" address. 1019 * 1020 * @param string $address The email address to send to 1021 * @param string $name 1022 * 1023 * @throws Exception 1024 * 1025 * @return bool true on success, false if address already used or invalid in some way 1026 */ 1027 public function addCC($address, $name = '') 1028 { 1029 return $this->addOrEnqueueAnAddress('cc', $address, $name); 1030 } 1031 1032 /** 1033 * Add a "BCC" address. 1034 * 1035 * @param string $address The email address to send to 1036 * @param string $name 1037 * 1038 * @throws Exception 1039 * 1040 * @return bool true on success, false if address already used or invalid in some way 1041 */ 1042 public function addBCC($address, $name = '') 1043 { 1044 return $this->addOrEnqueueAnAddress('bcc', $address, $name); 1045 } 1046 1047 /** 1048 * Add a "Reply-To" address. 1049 * 1050 * @param string $address The email address to reply to 1051 * @param string $name 1052 * 1053 * @throws Exception 1054 * 1055 * @return bool true on success, false if address already used or invalid in some way 1056 */ 1057 public function addReplyTo($address, $name = '') 1058 { 1059 return $this->addOrEnqueueAnAddress('Reply-To', $address, $name); 1060 } 1061 1062 /** 1063 * Add an address to one of the recipient arrays or to the ReplyTo array. Because PHPMailer 1064 * can't validate addresses with an IDN without knowing the PHPMailer::$CharSet (that can still 1065 * be modified after calling this function), addition of such addresses is delayed until send(). 1066 * Addresses that have been added already return false, but do not throw exceptions. 1067 * 1068 * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' 1069 * @param string $address The email address to send, resp. to reply to 1070 * @param string $name 1071 * 1072 * @throws Exception 1073 * 1074 * @return bool true on success, false if address already used or invalid in some way 1075 */ 1076 protected function addOrEnqueueAnAddress($kind, $address, $name) 1077 { 1078 $address = trim($address); 1079 $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim 1080 $pos = strrpos($address, '@'); 1081 if (false === $pos) { 1082 //At-sign is missing. 1083 $error_message = sprintf( 1084 '%s (%s): %s', 1085 $this->lang('invalid_address'), 1086 $kind, 1087 $address 1088 ); 1089 $this->setError($error_message); 1090 $this->edebug($error_message); 1091 if ($this->exceptions) { 1092 throw new Exception($error_message); 1093 } 1094 1095 return false; 1096 } 1097 $params = [$kind, $address, $name]; 1098 //Enqueue addresses with IDN until we know the PHPMailer::$CharSet. 1099 if (static::idnSupported() && $this->has8bitChars(substr($address, ++$pos))) { 1100 if ('Reply-To' !== $kind) { 1101 if (!array_key_exists($address, $this->RecipientsQueue)) { 1102 $this->RecipientsQueue[$address] = $params; 1103 1104 return true; 1105 } 1106 } elseif (!array_key_exists($address, $this->ReplyToQueue)) { 1107 $this->ReplyToQueue[$address] = $params; 1108 1109 return true; 1110 } 1111 1112 return false; 1113 } 1114 1115 //Immediately add standard addresses without IDN. 1116 return call_user_func_array([$this, 'addAnAddress'], $params); 1117 } 1118 1119 /** 1120 * Add an address to one of the recipient arrays or to the ReplyTo array. 1121 * Addresses that have been added already return false, but do not throw exceptions. 1122 * 1123 * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' 1124 * @param string $address The email address to send, resp. to reply to 1125 * @param string $name 1126 * 1127 * @throws Exception 1128 * 1129 * @return bool true on success, false if address already used or invalid in some way 1130 */ 1131 protected function addAnAddress($kind, $address, $name = '') 1132 { 1133 if (!in_array($kind, ['to', 'cc', 'bcc', 'Reply-To'])) { 1134 $error_message = sprintf( 1135 '%s: %s', 1136 $this->lang('Invalid recipient kind'), 1137 $kind 1138 ); 1139 $this->setError($error_message); 1140 $this->edebug($error_message); 1141 if ($this->exceptions) { 1142 throw new Exception($error_message); 1143 } 1144 1145 return false; 1146 } 1147 if (!static::validateAddress($address)) { 1148 $error_message = sprintf( 1149 '%s (%s): %s', 1150 $this->lang('invalid_address'), 1151 $kind, 1152 $address 1153 ); 1154 $this->setError($error_message); 1155 $this->edebug($error_message); 1156 if ($this->exceptions) { 1157 throw new Exception($error_message); 1158 } 1159 1160 return false; 1161 } 1162 if ('Reply-To' !== $kind) { 1163 if (!array_key_exists(strtolower($address), $this->all_recipients)) { 1164 $this->{$kind}[] = [$address, $name]; 1165 $this->all_recipients[strtolower($address)] = true; 1166 1167 return true; 1168 } 1169 } elseif (!array_key_exists(strtolower($address), $this->ReplyTo)) { 1170 $this->ReplyTo[strtolower($address)] = [$address, $name]; 1171 1172 return true; 1173 } 1174 1175 return false; 1176 } 1177 1178 /** 1179 * Parse and validate a string containing one or more RFC822-style comma-separated email addresses 1180 * of the form "display name <address>" into an array of name/address pairs. 1181 * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available. 1182 * Note that quotes in the name part are removed. 1183 * 1184 * @see http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation 1185 * 1186 * @param string $addrstr The address list string 1187 * @param bool $useimap Whether to use the IMAP extension to parse the list 1188 * @param string $charset The charset to use when decoding the address list string. 1189 * 1190 * @return array 1191 */ 1192 public static function parseAddresses($addrstr, $useimap = true, $charset = self::CHARSET_ISO88591) 1193 { 1194 $addresses = []; 1195 if ($useimap && function_exists('imap_rfc822_parse_adrlist')) { 1196 //Use this built-in parser if it's available 1197 $list = imap_rfc822_parse_adrlist($addrstr, ''); 1198 // Clear any potential IMAP errors to get rid of notices being thrown at end of script. 1199 imap_errors(); 1200 foreach ($list as $address) { 1201 if ( 1202 '.SYNTAX-ERROR.' !== $address->host && 1203 static::validateAddress($address->mailbox . '@' . $address->host) 1204 ) { 1205 //Decode the name part if it's present and encoded 1206 if ( 1207 property_exists($address, 'personal') && 1208 //Check for a Mbstring constant rather than using extension_loaded, which is sometimes disabled 1209 defined('MB_CASE_UPPER') && 1210 preg_match('/^=\?.*\?=$/s', $address->personal) 1211 ) { 1212 $origCharset = mb_internal_encoding(); 1213 mb_internal_encoding($charset); 1214 //Undo any RFC2047-encoded spaces-as-underscores 1215 $address->personal = str_replace('_', '=20', $address->personal); 1216 //Decode the name 1217 $address->personal = mb_decode_mimeheader($address->personal); 1218 mb_internal_encoding($origCharset); 1219 } 1220 1221 $addresses[] = [ 1222 'name' => (property_exists($address, 'personal') ? $address->personal : ''), 1223 'address' => $address->mailbox . '@' . $address->host, 1224 ]; 1225 } 1226 } 1227 } else { 1228 //Use this simpler parser 1229 $list = explode(',', $addrstr); 1230 foreach ($list as $address) { 1231 $address = trim($address); 1232 //Is there a separate name part? 1233 if (strpos($address, '<') === false) { 1234 //No separate name, just use the whole thing 1235 if (static::validateAddress($address)) { 1236 $addresses[] = [ 1237 'name' => '', 1238 'address' => $address, 1239 ]; 1240 } 1241 } else { 1242 list($name, $email) = explode('<', $address); 1243 $email = trim(str_replace('>', '', $email)); 1244 $name = trim($name); 1245 if (static::validateAddress($email)) { 1246 //Check for a Mbstring constant rather than using extension_loaded, which is sometimes disabled 1247 //If this name is encoded, decode it 1248 if (defined('MB_CASE_UPPER') && preg_match('/^=\?.*\?=$/s', $name)) { 1249 $origCharset = mb_internal_encoding(); 1250 mb_internal_encoding($charset); 1251 //Undo any RFC2047-encoded spaces-as-underscores 1252 $name = str_replace('_', '=20', $name); 1253 //Decode the name 1254 $name = mb_decode_mimeheader($name); 1255 mb_internal_encoding($origCharset); 1256 } 1257 $addresses[] = [ 1258 //Remove any surrounding quotes and spaces from the name 1259 'name' => trim($name, '\'" '), 1260 'address' => $email, 1261 ]; 1262 } 1263 } 1264 } 1265 } 1266 1267 return $addresses; 1268 } 1269 1270 /** 1271 * Set the From and FromName properties. 1272 * 1273 * @param string $address 1274 * @param string $name 1275 * @param bool $auto Whether to also set the Sender address, defaults to true 1276 * 1277 * @throws Exception 1278 * 1279 * @return bool 1280 */ 1281 public function setFrom($address, $name = '', $auto = true) 1282 { 1283 $address = trim($address); 1284 $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim 1285 //Don't validate now addresses with IDN. Will be done in send(). 1286 $pos = strrpos($address, '@'); 1287 if ( 1288 (false === $pos) 1289 || ((!$this->has8bitChars(substr($address, ++$pos)) || !static::idnSupported()) 1290 && !static::validateAddress($address)) 1291 ) { 1292 $error_message = sprintf( 1293 '%s (From): %s', 1294 $this->lang('invalid_address'), 1295 $address 1296 ); 1297 $this->setError($error_message); 1298 $this->edebug($error_message); 1299 if ($this->exceptions) { 1300 throw new Exception($error_message); 1301 } 1302 1303 return false; 1304 } 1305 $this->From = $address; 1306 $this->FromName = $name; 1307 if ($auto && empty($this->Sender)) { 1308 $this->Sender = $address; 1309 } 1310 1311 return true; 1312 } 1313 1314 /** 1315 * Return the Message-ID header of the last email. 1316 * Technically this is the value from the last time the headers were created, 1317 * but it's also the message ID of the last sent message except in 1318 * pathological cases. 1319 * 1320 * @return string 1321 */ 1322 public function getLastMessageID() 1323 { 1324 return $this->lastMessageID; 1325 } 1326 1327 /** 1328 * Check that a string looks like an email address. 1329 * Validation patterns supported: 1330 * * `auto` Pick best pattern automatically; 1331 * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0; 1332 * * `pcre` Use old PCRE implementation; 1333 * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL; 1334 * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements. 1335 * * `noregex` Don't use a regex: super fast, really dumb. 1336 * Alternatively you may pass in a callable to inject your own validator, for example: 1337 * 1338 * ```php 1339 * PHPMailer::validateAddress('user@example.com', function($address) { 1340 * return (strpos($address, '@') !== false); 1341 * }); 1342 * ``` 1343 * 1344 * You can also set the PHPMailer::$validator static to a callable, allowing built-in methods to use your validator. 1345 * 1346 * @param string $address The email address to check 1347 * @param string|callable $patternselect Which pattern to use 1348 * 1349 * @return bool 1350 */ 1351 public static function validateAddress($address, $patternselect = null) 1352 { 1353 if (null === $patternselect) { 1354 $patternselect = static::$validator; 1355 } 1356 //Don't allow strings as callables, see SECURITY.md and CVE-2021-3603 1357 if (is_callable($patternselect) && !is_string($patternselect)) { 1358 return call_user_func($patternselect, $address); 1359 } 1360 //Reject line breaks in addresses; it's valid RFC5322, but not RFC5321 1361 if (strpos($address, "\n") !== false || strpos($address, "\r") !== false) { 1362 return false; 1363 } 1364 switch ($patternselect) { 1365 case 'pcre': //Kept for BC 1366 case 'pcre8': 1367 /* 1368 * A more complex and more permissive version of the RFC5322 regex on which FILTER_VALIDATE_EMAIL 1369 * is based. 1370 * In addition to the addresses allowed by filter_var, also permits: 1371 * * dotless domains: `a@b` 1372 * * comments: `1234 @ local(blah) .machine .example` 1373 * * quoted elements: `'"test blah"@example.org'` 1374 * * numeric TLDs: `a@b.123` 1375 * * unbracketed IPv4 literals: `a@192.168.0.1` 1376 * * IPv6 literals: 'first.last@[IPv6:a1::]' 1377 * Not all of these will necessarily work for sending! 1378 * 1379 * @see http://squiloople.com/2009/12/20/email-address-validation/ 1380 * @copyright 2009-2010 Michael Rushton 1381 * Feel free to use and redistribute this code. But please keep this copyright notice. 1382 */ 1383 return (bool) preg_match( 1384 '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' . 1385 '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' . 1386 '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' . 1387 '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' . 1388 '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' . 1389 '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' . 1390 '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' . 1391 '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' . 1392 '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD', 1393 $address 1394 ); 1395 case 'html5': 1396 /* 1397 * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements. 1398 * 1399 * @see https://html.spec.whatwg.org/#e-mail-state-(type=email) 1400 */ 1401 return (bool) preg_match( 1402 '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}' . 1403 '[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/sD', 1404 $address 1405 ); 1406 case 'php': 1407 default: 1408 return filter_var($address, FILTER_VALIDATE_EMAIL) !== false; 1409 } 1410 } 1411 1412 /** 1413 * Tells whether IDNs (Internationalized Domain Names) are supported or not. This requires the 1414 * `intl` and `mbstring` PHP extensions. 1415 * 1416 * @return bool `true` if required functions for IDN support are present 1417 */ 1418 public static function idnSupported() 1419 { 1420 return function_exists('idn_to_ascii') && function_exists('mb_convert_encoding'); 1421 } 1422 1423 /** 1424 * Converts IDN in given email address to its ASCII form, also known as punycode, if possible. 1425 * Important: Address must be passed in same encoding as currently set in PHPMailer::$CharSet. 1426 * This function silently returns unmodified address if: 1427 * - No conversion is necessary (i.e. domain name is not an IDN, or is already in ASCII form) 1428 * - Conversion to punycode is impossible (e.g. required PHP functions are not available) 1429 * or fails for any reason (e.g. domain contains characters not allowed in an IDN). 1430 * 1431 * @see PHPMailer::$CharSet 1432 * 1433 * @param string $address The email address to convert 1434 * 1435 * @return string The encoded address in ASCII form 1436 */ 1437 public function punyencodeAddress($address) 1438 { 1439 //Verify we have required functions, CharSet, and at-sign. 1440 $pos = strrpos($address, '@'); 1441 if ( 1442 !empty($this->CharSet) && 1443 false !== $pos && 1444 static::idnSupported() 1445 ) { 1446 $domain = substr($address, ++$pos); 1447 //Verify CharSet string is a valid one, and domain properly encoded in this CharSet. 1448 if ($this->has8bitChars($domain) && @mb_check_encoding($domain, $this->CharSet)) { 1449 //Convert the domain from whatever charset it's in to UTF-8 1450 $domain = mb_convert_encoding($domain, self::CHARSET_UTF8, $this->CharSet); 1451 //Ignore IDE complaints about this line - method signature changed in PHP 5.4 1452 $errorcode = 0; 1453 if (defined('INTL_IDNA_VARIANT_UTS46')) { 1454 //Use the current punycode standard (appeared in PHP 7.2) 1455 $punycode = idn_to_ascii( 1456 $domain, 1457 \IDNA_DEFAULT | \IDNA_USE_STD3_RULES | \IDNA_CHECK_BIDI | 1458 \IDNA_CHECK_CONTEXTJ | \IDNA_NONTRANSITIONAL_TO_ASCII, 1459 \INTL_IDNA_VARIANT_UTS46 1460 ); 1461 } elseif (defined('INTL_IDNA_VARIANT_2003')) { 1462 //Fall back to this old, deprecated/removed encoding 1463 // phpcs:ignore PHPCompatibility.Constants.RemovedConstants.intl_idna_variant_2003Deprecated 1464 $punycode = idn_to_ascii($domain, $errorcode, \INTL_IDNA_VARIANT_2003); 1465 } else { 1466 //Fall back to a default we don't know about 1467 // phpcs:ignore PHPCompatibility.ParameterValues.NewIDNVariantDefault.NotSet 1468 $punycode = idn_to_ascii($domain, $errorcode); 1469 } 1470 if (false !== $punycode) { 1471 return substr($address, 0, $pos) . $punycode; 1472 } 1473 } 1474 } 1475 1476 return $address; 1477 } 1478 1479 /** 1480 * Create a message and send it. 1481 * Uses the sending method specified by $Mailer. 1482 * 1483 * @throws Exception 1484 * 1485 * @return bool false on error - See the ErrorInfo property for details of the error 1486 */ 1487 public function send() 1488 { 1489 try { 1490 if (!$this->preSend()) { 1491 return false; 1492 } 1493 1494 return $this->postSend(); 1495 } catch (Exception $exc) { 1496 $this->mailHeader = ''; 1497 $this->setError($exc->getMessage()); 1498 if ($this->exceptions) { 1499 throw $exc; 1500 } 1501 1502 return false; 1503 } 1504 } 1505 1506 /** 1507 * Prepare a message for sending. 1508 * 1509 * @throws Exception 1510 * 1511 * @return bool 1512 */ 1513 public function preSend() 1514 { 1515 if ( 1516 'smtp' === $this->Mailer 1517 || ('mail' === $this->Mailer && (\PHP_VERSION_ID >= 80000 || stripos(PHP_OS, 'WIN') === 0)) 1518 ) { 1519 //SMTP mandates RFC-compliant line endings 1520 //and it's also used with mail() on Windows 1521 static::setLE(self::CRLF); 1522 } else { 1523 //Maintain backward compatibility with legacy Linux command line mailers 1524 static::setLE(PHP_EOL); 1525 } 1526 //Check for buggy PHP versions that add a header with an incorrect line break 1527 if ( 1528 'mail' === $this->Mailer 1529 && ((\PHP_VERSION_ID >= 70000 && \PHP_VERSION_ID < 70017) 1530 || (\PHP_VERSION_ID >= 70100 && \PHP_VERSION_ID < 70103)) 1531 && ini_get('mail.add_x_header') === '1' 1532 && stripos(PHP_OS, 'WIN') === 0 1533 ) { 1534 trigger_error($this->lang('buggy_php'), E_USER_WARNING); 1535 } 1536 1537 try { 1538 $this->error_count = 0; //Reset errors 1539 $this->mailHeader = ''; 1540 1541 //Dequeue recipient and Reply-To addresses with IDN 1542 foreach (array_merge($this->RecipientsQueue, $this->ReplyToQueue) as $params) { 1543 $params[1] = $this->punyencodeAddress($params[1]); 1544 call_user_func_array([$this, 'addAnAddress'], $params); 1545 } 1546 if (count($this->to) + count($this->cc) + count($this->bcc) < 1) { 1547 throw new Exception($this->lang('provide_address'), self::STOP_CRITICAL); 1548 } 1549 1550 //Validate From, Sender, and ConfirmReadingTo addresses 1551 foreach (['From', 'Sender', 'ConfirmReadingTo'] as $address_kind) { 1552 $this->$address_kind = trim($this->$address_kind); 1553 if (empty($this->$address_kind)) { 1554 continue; 1555 } 1556 $this->$address_kind = $this->punyencodeAddress($this->$address_kind); 1557 if (!static::validateAddress($this->$address_kind)) { 1558 $error_message = sprintf( 1559 '%s (%s): %s', 1560 $this->lang('invalid_address'), 1561 $address_kind, 1562 $this->$address_kind 1563 ); 1564 $this->setError($error_message); 1565 $this->edebug($error_message); 1566 if ($this->exceptions) { 1567 throw new Exception($error_message); 1568 } 1569 1570 return false; 1571 } 1572 } 1573 1574 //Set whether the message is multipart/alternative 1575 if ($this->alternativeExists()) { 1576 $this->ContentType = static::CONTENT_TYPE_MULTIPART_ALTERNATIVE; 1577 } 1578 1579 $this->setMessageType(); 1580 //Refuse to send an empty message unless we are specifically allowing it 1581 if (!$this->AllowEmpty && empty($this->Body)) { 1582 throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL); 1583 } 1584 1585 //Trim subject consistently 1586 $this->Subject = trim($this->Subject); 1587 //Create body before headers in case body makes changes to headers (e.g. altering transfer encoding) 1588 $this->MIMEHeader = ''; 1589 $this->MIMEBody = $this->createBody(); 1590 //createBody may have added some headers, so retain them 1591 $tempheaders = $this->MIMEHeader; 1592 $this->MIMEHeader = $this->createHeader(); 1593 $this->MIMEHeader .= $tempheaders; 1594 1595 //To capture the complete message when using mail(), create 1596 //an extra header list which createHeader() doesn't fold in 1597 if ('mail' === $this->Mailer) { 1598 if (count($this->to) > 0) { 1599 $this->mailHeader .= $this->addrAppend('To', $this->to); 1600 } else { 1601 $this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;'); 1602 } 1603 $this->mailHeader .= $this->headerLine( 1604 'Subject', 1605 $this->encodeHeader($this->secureHeader($this->Subject)) 1606 ); 1607 } 1608 1609 //Sign with DKIM if enabled 1610 if ( 1611 !empty($this->DKIM_domain) 1612 && !empty($this->DKIM_selector) 1613 && (!empty($this->DKIM_private_string) 1614 || (!empty($this->DKIM_private) 1615 && static::isPermittedPath($this->DKIM_private) 1616 && file_exists($this->DKIM_private) 1617 ) 1618 ) 1619 ) { 1620 $header_dkim = $this->DKIM_Add( 1621 $this->MIMEHeader . $this->mailHeader, 1622 $this->encodeHeader($this->secureHeader($this->Subject)), 1623 $this->MIMEBody 1624 ); 1625 $this->MIMEHeader = static::stripTrailingWSP($this->MIMEHeader) . static::$LE . 1626 static::normalizeBreaks($header_dkim) . static::$LE; 1627 } 1628 1629 return true; 1630 } catch (Exception $exc) { 1631 $this->setError($exc->getMessage()); 1632 if ($this->exceptions) { 1633 throw $exc; 1634 } 1635 1636 return false; 1637 } 1638 } 1639 1640 /** 1641 * Actually send a message via the selected mechanism. 1642 * 1643 * @throws Exception 1644 * 1645 * @return bool 1646 */ 1647 public function postSend() 1648 { 1649 try { 1650 //Choose the mailer and send through it 1651 switch ($this->Mailer) { 1652 case 'sendmail': 1653 case 'qmail': 1654 return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody); 1655 case 'smtp': 1656 return $this->smtpSend($this->MIMEHeader, $this->MIMEBody); 1657 case 'mail': 1658 return $this->mailSend($this->MIMEHeader, $this->MIMEBody); 1659 default: 1660 $sendMethod = $this->Mailer . 'Send'; 1661 if (method_exists($this, $sendMethod)) { 1662 return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody); 1663 } 1664 1665 return $this->mailSend($this->MIMEHeader, $this->MIMEBody); 1666 } 1667 } catch (Exception $exc) { 1668 if ($this->Mailer === 'smtp' && $this->SMTPKeepAlive == true) { 1669 $this->smtp->reset(); 1670 } 1671 $this->setError($exc->getMessage()); 1672 $this->edebug($exc->getMessage()); 1673 if ($this->exceptions) { 1674 throw $exc; 1675 } 1676 } 1677 1678 return false; 1679 } 1680 1681 /** 1682 * Send mail using the $Sendmail program. 1683 * 1684 * @see PHPMailer::$Sendmail 1685 * 1686 * @param string $header The message headers 1687 * @param string $body The message body 1688 * 1689 * @throws Exception 1690 * 1691 * @return bool 1692 */ 1693 protected function sendmailSend($header, $body) 1694 { 1695 if ($this->Mailer === 'qmail') { 1696 $this->edebug('Sending with qmail'); 1697 } else { 1698 $this->edebug('Sending with sendmail'); 1699 } 1700 $header = static::stripTrailingWSP($header) . static::$LE . static::$LE; 1701 //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver 1702 //A space after `-f` is optional, but there is a long history of its presence 1703 //causing problems, so we don't use one 1704 //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html 1705 //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html 1706 //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html 1707 //Example problem: https://www.drupal.org/node/1057954 1708 1709 //PHP 5.6 workaround 1710 $sendmail_from_value = ini_get('sendmail_from'); 1711 if (empty($this->Sender) && !empty($sendmail_from_value)) { 1712 //PHP config has a sender address we can use 1713 $this->Sender = ini_get('sendmail_from'); 1714 } 1715 //CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. 1716 if (!empty($this->Sender) && static::validateAddress($this->Sender) && self::isShellSafe($this->Sender)) { 1717 if ($this->Mailer === 'qmail') { 1718 $sendmailFmt = '%s -f%s'; 1719 } else { 1720 $sendmailFmt = '%s -oi -f%s -t'; 1721 } 1722 } else { 1723 //allow sendmail to choose a default envelope sender. It may 1724 //seem preferable to force it to use the From header as with 1725 //SMTP, but that introduces new problems (see 1726 //<https://github.com/PHPMailer/PHPMailer/issues/2298>), and 1727 //it has historically worked this way. 1728 $sendmailFmt = '%s -oi -t'; 1729 } 1730 1731 $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender); 1732 $this->edebug('Sendmail path: ' . $this->Sendmail); 1733 $this->edebug('Sendmail command: ' . $sendmail); 1734 $this->edebug('Envelope sender: ' . $this->Sender); 1735 $this->edebug("Headers: {$header}"); 1736 1737 if ($this->SingleTo) { 1738 foreach ($this->SingleToArray as $toAddr) { 1739 $mail = @popen($sendmail, 'w'); 1740 if (!$mail) { 1741 throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); 1742 } 1743 $this->edebug("To: {$toAddr}"); 1744 fwrite($mail, 'To: ' . $toAddr . "\n"); 1745 fwrite($mail, $header); 1746 fwrite($mail, $body); 1747 $result = pclose($mail); 1748 $addrinfo = static::parseAddresses($toAddr, true, $this->CharSet); 1749 $this->doCallback( 1750 ($result === 0), 1751 [[$addrinfo['address'], $addrinfo['name']]], 1752 $this->cc, 1753 $this->bcc, 1754 $this->Subject, 1755 $body, 1756 $this->From, 1757 [] 1758 ); 1759 $this->edebug("Result: " . ($result === 0 ? 'true' : 'false')); 1760 if (0 !== $result) { 1761 throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); 1762 } 1763 } 1764 } else { 1765 $mail = @popen($sendmail, 'w'); 1766 if (!$mail) { 1767 throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); 1768 } 1769 fwrite($mail, $header); 1770 fwrite($mail, $body); 1771 $result = pclose($mail); 1772 $this->doCallback( 1773 ($result === 0), 1774 $this->to, 1775 $this->cc, 1776 $this->bcc, 1777 $this->Subject, 1778 $body, 1779 $this->From, 1780 [] 1781 ); 1782 $this->edebug("Result: " . ($result === 0 ? 'true' : 'false')); 1783 if (0 !== $result) { 1784 throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); 1785 } 1786 } 1787 1788 return true; 1789 } 1790 1791 /** 1792 * Fix CVE-2016-10033 and CVE-2016-10045 by disallowing potentially unsafe shell characters. 1793 * Note that escapeshellarg and escapeshellcmd are inadequate for our purposes, especially on Windows. 1794 * 1795 * @see https://github.com/PHPMailer/PHPMailer/issues/924 CVE-2016-10045 bug report 1796 * 1797 * @param string $string The string to be validated 1798 * 1799 * @return bool 1800 */ 1801 protected static function isShellSafe($string) 1802 { 1803 //It's not possible to use shell commands safely (which includes the mail() function) without escapeshellarg, 1804 //but some hosting providers disable it, creating a security problem that we don't want to have to deal with, 1805 //so we don't. 1806 if (!function_exists('escapeshellarg') || !function_exists('escapeshellcmd')) { 1807 return false; 1808 } 1809 1810 if ( 1811 escapeshellcmd($string) !== $string 1812 || !in_array(escapeshellarg($string), ["'$string'", "\"$string\""]) 1813 ) { 1814 return false; 1815 } 1816 1817 $length = strlen($string); 1818 1819 for ($i = 0; $i < $length; ++$i) { 1820 $c = $string[$i]; 1821 1822 //All other characters have a special meaning in at least one common shell, including = and +. 1823 //Full stop (.) has a special meaning in cmd.exe, but its impact should be negligible here. 1824 //Note that this does permit non-Latin alphanumeric characters based on the current locale. 1825 if (!ctype_alnum($c) && strpos('@_-.', $c) === false) { 1826 return false; 1827 } 1828 } 1829 1830 return true; 1831 } 1832 1833 /** 1834 * Check whether a file path is of a permitted type. 1835 * Used to reject URLs and phar files from functions that access local file paths, 1836 * such as addAttachment. 1837 * 1838 * @param string $path A relative or absolute path to a file 1839 * 1840 * @return bool 1841 */ 1842 protected static function isPermittedPath($path) 1843 { 1844 //Matches scheme definition from https://tools.ietf.org/html/rfc3986#section-3.1 1845 return !preg_match('#^[a-z][a-z\d+.-]*://#i', $path); 1846 } 1847 1848 /** 1849 * Check whether a file path is safe, accessible, and readable. 1850 * 1851 * @param string $path A relative or absolute path to a file 1852 * 1853 * @return bool 1854 */ 1855 protected static function fileIsAccessible($path) 1856 { 1857 if (!static::isPermittedPath($path)) { 1858 return false; 1859 } 1860 $readable = file_exists($path); 1861 //If not a UNC path (expected to start with \\), check read permission, see #2069 1862 if (strpos($path, '\\\\') !== 0) { 1863 $readable = $readable && is_readable($path); 1864 } 1865 return $readable; 1866 } 1867 1868 /** 1869 * Send mail using the PHP mail() function. 1870 * 1871 * @see http://www.php.net/manual/en/book.mail.php 1872 * 1873 * @param string $header The message headers 1874 * @param string $body The message body 1875 * 1876 * @throws Exception 1877 * 1878 * @return bool 1879 */ 1880 protected function mailSend($header, $body) 1881 { 1882 $header = static::stripTrailingWSP($header) . static::$LE . static::$LE; 1883 1884 $toArr = []; 1885 foreach ($this->to as $toaddr) { 1886 $toArr[] = $this->addrFormat($toaddr); 1887 } 1888 $to = implode(', ', $toArr); 1889 1890 $params = null; 1891 //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver 1892 //A space after `-f` is optional, but there is a long history of its presence 1893 //causing problems, so we don't use one 1894 //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html 1895 //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html 1896 //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html 1897 //Example problem: https://www.drupal.org/node/1057954 1898 //CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. 1899 1900 //PHP 5.6 workaround 1901 $sendmail_from_value = ini_get('sendmail_from'); 1902 if (empty($this->Sender) && !empty($sendmail_from_value)) { 1903 //PHP config has a sender address we can use 1904 $this->Sender = ini_get('sendmail_from'); 1905 } 1906 if (!empty($this->Sender) && static::validateAddress($this->Sender)) { 1907 if (self::isShellSafe($this->Sender)) { 1908 $params = sprintf('-f%s', $this->Sender); 1909 } 1910 $old_from = ini_get('sendmail_from'); 1911 ini_set('sendmail_from', $this->Sender); 1912 } 1913 $result = false; 1914 if ($this->SingleTo && count($toArr) > 1) { 1915 foreach ($toArr as $toAddr) { 1916 $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params); 1917 $addrinfo = static::parseAddresses($toAddr, true, $this->CharSet); 1918 $this->doCallback( 1919 $result, 1920 [[$addrinfo['address'], $addrinfo['name']]], 1921 $this->cc, 1922 $this->bcc, 1923 $this->Subject, 1924 $body, 1925 $this->From, 1926 [] 1927 ); 1928 } 1929 } else { 1930 $result = $this->mailPassthru($to, $this->Subject, $body, $header, $params); 1931 $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From, []); 1932 } 1933 if (isset($old_from)) { 1934 ini_set('sendmail_from', $old_from); 1935 } 1936 if (!$result) { 1937 throw new Exception($this->lang('instantiate'), self::STOP_CRITICAL); 1938 } 1939 1940 return true; 1941 } 1942 1943 /** 1944 * Get an instance to use for SMTP operations. 1945 * Override this function to load your own SMTP implementation, 1946 * or set one with setSMTPInstance. 1947 * 1948 * @return SMTP 1949 */ 1950 public function getSMTPInstance() 1951 { 1952 if (!is_object($this->smtp)) { 1953 $this->smtp = new SMTP(); 1954 } 1955 1956 return $this->smtp; 1957 } 1958 1959 /** 1960 * Provide an instance to use for SMTP operations. 1961 * 1962 * @return SMTP 1963 */ 1964 public function setSMTPInstance(SMTP $smtp) 1965 { 1966 $this->smtp = $smtp; 1967 1968 return $this->smtp; 1969 } 1970 1971 /** 1972 * Send mail via SMTP. 1973 * Returns false if there is a bad MAIL FROM, RCPT, or DATA input. 1974 * 1975 * @see PHPMailer::setSMTPInstance() to use a different class. 1976 * 1977 * @uses \PHPMailer\PHPMailer\SMTP 1978 * 1979 * @param string $header The message headers 1980 * @param string $body The message body 1981 * 1982 * @throws Exception 1983 * 1984 * @return bool 1985 */ 1986 protected function smtpSend($header, $body) 1987 { 1988 $header = static::stripTrailingWSP($header) . static::$LE . static::$LE; 1989 $bad_rcpt = []; 1990 if (!$this->smtpConnect($this->SMTPOptions)) { 1991 throw new Exception($this->lang('smtp_connect_failed'), self::STOP_CRITICAL); 1992 } 1993 //Sender already validated in preSend() 1994 if ('' === $this->Sender) { 1995 $smtp_from = $this->From; 1996 } else { 1997 $smtp_from = $this->Sender; 1998 } 1999 if (!$this->smtp->mail($smtp_from)) { 2000 $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError())); 2001 throw new Exception($this->ErrorInfo, self::STOP_CRITICAL); 2002 } 2003 2004 $callbacks = []; 2005 //Attempt to send to all recipients 2006 foreach ([$this->to, $this->cc, $this->bcc] as $togroup) { 2007 foreach ($togroup as $to) { 2008 if (!$this->smtp->recipient($to[0], $this->dsn)) { 2009 $error = $this->smtp->getError(); 2010 $bad_rcpt[] = ['to' => $to[0], 'error' => $error['detail']]; 2011 $isSent = false; 2012 } else { 2013 $isSent = true; 2014 } 2015 2016 $callbacks[] = ['issent' => $isSent, 'to' => $to[0], 'name' => $to[1]]; 2017 } 2018 } 2019 2020 //Only send the DATA command if we have viable recipients 2021 if ((count($this->all_recipients) > count($bad_rcpt)) && !$this->smtp->data($header . $body)) { 2022 throw new Exception($this->lang('data_not_accepted'), self::STOP_CRITICAL); 2023 } 2024 2025 $smtp_transaction_id = $this->smtp->getLastTransactionID(); 2026 2027 if ($this->SMTPKeepAlive) { 2028 $this->smtp->reset(); 2029 } else { 2030 $this->smtp->quit(); 2031 $this->smtp->close(); 2032 } 2033 2034 foreach ($callbacks as $cb) { 2035 $this->doCallback( 2036 $cb['issent'], 2037 [[$cb['to'], $cb['name']]], 2038 [], 2039 [], 2040 $this->Subject, 2041 $body, 2042 $this->From, 2043 ['smtp_transaction_id' => $smtp_transaction_id] 2044 ); 2045 } 2046 2047 //Create error message for any bad addresses 2048 if (count($bad_rcpt) > 0) { 2049 $errstr = ''; 2050 foreach ($bad_rcpt as $bad) { 2051 $errstr .= $bad['to'] . ': ' . $bad['error']; 2052 } 2053 throw new Exception($this->lang('recipients_failed') . $errstr, self::STOP_CONTINUE); 2054 } 2055 2056 return true; 2057 } 2058 2059 /** 2060 * Initiate a connection to an SMTP server. 2061 * Returns false if the operation failed. 2062 * 2063 * @param array $options An array of options compatible with stream_context_create() 2064 * 2065 * @throws Exception 2066 * 2067 * @uses \PHPMailer\PHPMailer\SMTP 2068 * 2069 * @return bool 2070 */ 2071 public function smtpConnect($options = null) 2072 { 2073 if (null === $this->smtp) { 2074 $this->smtp = $this->getSMTPInstance(); 2075 } 2076 2077 //If no options are provided, use whatever is set in the instance 2078 if (null === $options) { 2079 $options = $this->SMTPOptions; 2080 } 2081 2082 //Already connected? 2083 if ($this->smtp->connected()) { 2084 return true; 2085 } 2086 2087 $this->smtp->setTimeout($this->Timeout); 2088 $this->smtp->setDebugLevel($this->SMTPDebug); 2089 $this->smtp->setDebugOutput($this->Debugoutput); 2090 $this->smtp->setVerp($this->do_verp); 2091 $hosts = explode(';', $this->Host); 2092 $lastexception = null; 2093 2094 foreach ($hosts as $hostentry) { 2095 $hostinfo = []; 2096 if ( 2097 !preg_match( 2098 '/^(?:(ssl|tls):\/\/)?(.+?)(?::(\d+))?$/', 2099 trim($hostentry), 2100 $hostinfo 2101 ) 2102 ) { 2103 $this->edebug($this->lang('invalid_hostentry') . ' ' . trim($hostentry)); 2104 //Not a valid host entry 2105 continue; 2106 } 2107 //$hostinfo[1]: optional ssl or tls prefix 2108 //$hostinfo[2]: the hostname 2109 //$hostinfo[3]: optional port number 2110 //The host string prefix can temporarily override the current setting for SMTPSecure 2111 //If it's not specified, the default value is used 2112 2113 //Check the host name is a valid name or IP address before trying to use it 2114 if (!static::isValidHost($hostinfo[2])) { 2115 $this->edebug($this->lang('invalid_host') . ' ' . $hostinfo[2]); 2116 continue; 2117 } 2118 $prefix = ''; 2119 $secure = $this->SMTPSecure; 2120 $tls = (static::ENCRYPTION_STARTTLS === $this->SMTPSecure); 2121 if ('ssl' === $hostinfo[1] || ('' === $hostinfo[1] && static::ENCRYPTION_SMTPS === $this->SMTPSecure)) { 2122 $prefix = 'ssl://'; 2123 $tls = false; //Can't have SSL and TLS at the same time 2124 $secure = static::ENCRYPTION_SMTPS; 2125 } elseif ('tls' === $hostinfo[1]) { 2126 $tls = true; 2127 //TLS doesn't use a prefix 2128 $secure = static::ENCRYPTION_STARTTLS; 2129 } 2130 //Do we need the OpenSSL extension? 2131 $sslext = defined('OPENSSL_ALGO_SHA256'); 2132 if (static::ENCRYPTION_STARTTLS === $secure || static::ENCRYPTION_SMTPS === $secure) { 2133 //Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled 2134 if (!$sslext) { 2135 throw new Exception($this->lang('extension_missing') . 'openssl', self::STOP_CRITICAL); 2136 } 2137 } 2138 $host = $hostinfo[2]; 2139 $port = $this->Port; 2140 if ( 2141 array_key_exists(3, $hostinfo) && 2142 is_numeric($hostinfo[3]) && 2143 $hostinfo[3] > 0 && 2144 $hostinfo[3] < 65536 2145 ) { 2146 $port = (int) $hostinfo[3]; 2147 } 2148 if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) { 2149 try { 2150 if ($this->Helo) { 2151 $hello = $this->Helo; 2152 } else { 2153 $hello = $this->serverHostname(); 2154 } 2155 $this->smtp->hello($hello); 2156 //Automatically enable TLS encryption if: 2157 //* it's not disabled 2158 //* we have openssl extension 2159 //* we are not already using SSL 2160 //* the server offers STARTTLS 2161 if ($this->SMTPAutoTLS && $sslext && 'ssl' !== $secure && $this->smtp->getServerExt('STARTTLS')) { 2162 $tls = true; 2163 } 2164 if ($tls) { 2165 if (!$this->smtp->startTLS()) { 2166 $message = $this->getSmtpErrorMessage('connect_host'); 2167 throw new Exception($message); 2168 } 2169 //We must resend EHLO after TLS negotiation 2170 $this->smtp->hello($hello); 2171 } 2172 if ( 2173 $this->SMTPAuth && !$this->smtp->authenticate( 2174 $this->Username, 2175 $this->Password, 2176 $this->AuthType, 2177 $this->oauth 2178 ) 2179 ) { 2180 throw new Exception($this->lang('authenticate')); 2181 } 2182 2183 return true; 2184 } catch (Exception $exc) { 2185 $lastexception = $exc; 2186 $this->edebug($exc->getMessage()); 2187 //We must have connected, but then failed TLS or Auth, so close connection nicely 2188 $this->smtp->quit(); 2189 } 2190 } 2191 } 2192 //If we get here, all connection attempts have failed, so close connection hard 2193 $this->smtp->close(); 2194 //As we've caught all exceptions, just report whatever the last one was 2195 if ($this->exceptions && null !== $lastexception) { 2196 throw $lastexception; 2197 } elseif ($this->exceptions) { 2198 // no exception was thrown, likely $this->smtp->connect() failed 2199 $message = $this->getSmtpErrorMessage('connect_host'); 2200 throw new Exception($message); 2201 } 2202 2203 return false; 2204 } 2205 2206 /** 2207 * Close the active SMTP session if one exists. 2208 */ 2209 public function smtpClose() 2210 { 2211 if ((null !== $this->smtp) && $this->smtp->connected()) { 2212 $this->smtp->quit(); 2213 $this->smtp->close(); 2214 } 2215 } 2216 2217 /** 2218 * Set the language for error messages. 2219 * The default language is English. 2220 * 2221 * @param string $langcode ISO 639-1 2-character language code (e.g. French is "fr") 2222 * Optionally, the language code can be enhanced with a 4-character 2223 * script annotation and/or a 2-character country annotation. 2224 * @param string $lang_path Path to the language file directory, with trailing separator (slash) 2225 * Do not set this from user input! 2226 * 2227 * @return bool Returns true if the requested language was loaded, false otherwise. 2228 */ 2229 public function setLanguage($langcode = 'en', $lang_path = '') 2230 { 2231 //Backwards compatibility for renamed language codes 2232 $renamed_langcodes = [ 2233 'br' => 'pt_br', 2234 'cz' => 'cs', 2235 'dk' => 'da', 2236 'no' => 'nb', 2237 'se' => 'sv', 2238 'rs' => 'sr', 2239 'tg' => 'tl', 2240 'am' => 'hy', 2241 ]; 2242 2243 if (array_key_exists($langcode, $renamed_langcodes)) { 2244 $langcode = $renamed_langcodes[$langcode]; 2245 } 2246 2247 //Define full set of translatable strings in English 2248 $PHPMAILER_LANG = [ 2249 'authenticate' => 'SMTP Error: Could not authenticate.', 2250 'buggy_php' => 'Your version of PHP is affected by a bug that may result in corrupted messages.' . 2251 ' To fix it, switch to sending using SMTP, disable the mail.add_x_header option in' . 2252 ' your php.ini, switch to MacOS or Linux, or upgrade your PHP to version 7.0.17+ or 7.1.3+.', 2253 'connect_host' => 'SMTP Error: Could not connect to SMTP host.', 2254 'data_not_accepted' => 'SMTP Error: data not accepted.', 2255 'empty_message' => 'Message body empty', 2256 'encoding' => 'Unknown encoding: ', 2257 'execute' => 'Could not execute: ', 2258 'extension_missing' => 'Extension missing: ', 2259 'file_access' => 'Could not access file: ', 2260 'file_open' => 'File Error: Could not open file: ', 2261 'from_failed' => 'The following From address failed: ', 2262 'instantiate' => 'Could not instantiate mail function.', 2263 'invalid_address' => 'Invalid address: ', 2264 'invalid_header' => 'Invalid header name or value', 2265 'invalid_hostentry' => 'Invalid hostentry: ', 2266 'invalid_host' => 'Invalid host: ', 2267 'mailer_not_supported' => ' mailer is not supported.', 2268 'provide_address' => 'You must provide at least one recipient email address.', 2269 'recipients_failed' => 'SMTP Error: The following recipients failed: ', 2270 'signing' => 'Signing Error: ', 2271 'smtp_code' => 'SMTP code: ', 2272 'smtp_code_ex' => 'Additional SMTP info: ', 2273 'smtp_connect_failed' => 'SMTP connect() failed.', 2274 'smtp_detail' => 'Detail: ', 2275 'smtp_error' => 'SMTP server error: ', 2276 'variable_set' => 'Cannot set or reset variable: ', 2277 ]; 2278 if (empty($lang_path)) { 2279 //Calculate an absolute path so it can work if CWD is not here 2280 $lang_path = dirname(__DIR__) . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR; 2281 } 2282 2283 //Validate $langcode 2284 $foundlang = true; 2285 $langcode = strtolower($langcode); 2286 if ( 2287 !preg_match('/^(?P<lang>[a-z]{2})(?P<script>_[a-z]{4})?(?P<country>_[a-z]{2})?$/', $langcode, $matches) 2288 && $langcode !== 'en' 2289 ) { 2290 $foundlang = false; 2291 $langcode = 'en'; 2292 } 2293 2294 //There is no English translation file 2295 if ('en' !== $langcode) { 2296 $langcodes = []; 2297 if (!empty($matches['script']) && !empty($matches['country'])) { 2298 $langcodes[] = $matches['lang'] . $matches['script'] . $matches['country']; 2299 } 2300 if (!empty($matches['country'])) { 2301 $langcodes[] = $matches['lang'] . $matches['country']; 2302 } 2303 if (!empty($matches['script'])) { 2304 $langcodes[] = $matches['lang'] . $matches['script']; 2305 } 2306 $langcodes[] = $matches['lang']; 2307 2308 //Try and find a readable language file for the requested language. 2309 $foundFile = false; 2310 foreach ($langcodes as $code) { 2311 $lang_file = $lang_path . 'phpmailer.lang-' . $code . '.php'; 2312 if (static::fileIsAccessible($lang_file)) { 2313 $foundFile = true; 2314 break; 2315 } 2316 } 2317 2318 if ($foundFile === false) { 2319 $foundlang = false; 2320 } else { 2321 $lines = file($lang_file); 2322 foreach ($lines as $line) { 2323 //Translation file lines look like this: 2324 //$PHPMAILER_LANG['authenticate'] = 'SMTP-Fehler: Authentifizierung fehlgeschlagen.'; 2325 //These files are parsed as text and not PHP so as to avoid the possibility of code injection 2326 //See https://blog.stevenlevithan.com/archives/match-quoted-string 2327 $matches = []; 2328 if ( 2329 preg_match( 2330 '/^\$PHPMAILER_LANG\[\'([a-z\d_]+)\'\]\s*=\s*(["\'])(.+)*?\2;/', 2331 $line, 2332 $matches 2333 ) && 2334 //Ignore unknown translation keys 2335 array_key_exists($matches[1], $PHPMAILER_LANG) 2336 ) { 2337 //Overwrite language-specific strings so we'll never have missing translation keys. 2338 $PHPMAILER_LANG[$matches[1]] = (string)$matches[3]; 2339 } 2340 } 2341 } 2342 } 2343 $this->language = $PHPMAILER_LANG; 2344 2345 return $foundlang; //Returns false if language not found 2346 } 2347 2348 /** 2349 * Get the array of strings for the current language. 2350 * 2351 * @return array 2352 */ 2353 public function getTranslations() 2354 { 2355 if (empty($this->language)) { 2356 $this->setLanguage(); // Set the default language. 2357 } 2358 2359 return $this->language; 2360 } 2361 2362 /** 2363 * Create recipient headers. 2364 * 2365 * @param string $type 2366 * @param array $addr An array of recipients, 2367 * where each recipient is a 2-element indexed array with element 0 containing an address 2368 * and element 1 containing a name, like: 2369 * [['joe@example.com', 'Joe User'], ['zoe@example.com', 'Zoe User']] 2370 * 2371 * @return string 2372 */ 2373 public function addrAppend($type, $addr) 2374 { 2375 $addresses = []; 2376 foreach ($addr as $address) { 2377 $addresses[] = $this->addrFormat($address); 2378 } 2379 2380 return $type . ': ' . implode(', ', $addresses) . static::$LE; 2381 } 2382 2383 /** 2384 * Format an address for use in a message header. 2385 * 2386 * @param array $addr A 2-element indexed array, element 0 containing an address, element 1 containing a name like 2387 * ['joe@example.com', 'Joe User'] 2388 * 2389 * @return string 2390 */ 2391 public function addrFormat($addr) 2392 { 2393 if (empty($addr[1])) { //No name provided 2394 return $this->secureHeader($addr[0]); 2395 } 2396 2397 return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . 2398 ' <' . $this->secureHeader($addr[0]) . '>'; 2399 } 2400 2401 /** 2402 * Word-wrap message. 2403 * For use with mailers that do not automatically perform wrapping 2404 * and for quoted-printable encoded messages. 2405 * Original written by philippe. 2406 * 2407 * @param string $message The message to wrap 2408 * @param int $length The line length to wrap to 2409 * @param bool $qp_mode Whether to run in Quoted-Printable mode 2410 * 2411 * @return string 2412 */ 2413 public function wrapText($message, $length, $qp_mode = false) 2414 { 2415 if ($qp_mode) { 2416 $soft_break = sprintf(' =%s', static::$LE); 2417 } else { 2418 $soft_break = static::$LE; 2419 } 2420 //If utf-8 encoding is used, we will need to make sure we don't 2421 //split multibyte characters when we wrap 2422 $is_utf8 = static::CHARSET_UTF8 === strtolower($this->CharSet); 2423 $lelen = strlen(static::$LE); 2424 $crlflen = strlen(static::$LE); 2425 2426 $message = static::normalizeBreaks($message); 2427 //Remove a trailing line break 2428 if (substr($message, -$lelen) === static::$LE) { 2429 $message = substr($message, 0, -$lelen); 2430 } 2431 2432 //Split message into lines 2433 $lines = explode(static::$LE, $message); 2434 //Message will be rebuilt in here 2435 $message = ''; 2436 foreach ($lines as $line) { 2437 $words = explode(' ', $line); 2438 $buf = ''; 2439 $firstword = true; 2440 foreach ($words as $word) { 2441 if ($qp_mode && (strlen($word) > $length)) { 2442 $space_left = $length - strlen($buf) - $crlflen; 2443 if (!$firstword) { 2444 if ($space_left > 20) { 2445 $len = $space_left; 2446 if ($is_utf8) { 2447 $len = $this->utf8CharBoundary($word, $len); 2448 } elseif ('=' === substr($word, $len - 1, 1)) { 2449 --$len; 2450 } elseif ('=' === substr($word, $len - 2, 1)) { 2451 $len -= 2; 2452 } 2453 $part = substr($word, 0, $len); 2454 $word = substr($word, $len); 2455 $buf .= ' ' . $part; 2456 $message .= $buf . sprintf('=%s', static::$LE); 2457 } else { 2458 $message .= $buf . $soft_break; 2459 } 2460 $buf = ''; 2461 } 2462 while ($word !== '') { 2463 if ($length <= 0) { 2464 break; 2465 } 2466 $len = $length; 2467 if ($is_utf8) { 2468 $len = $this->utf8CharBoundary($word, $len); 2469 } elseif ('=' === substr($word, $len - 1, 1)) { 2470 --$len; 2471 } elseif ('=' === substr($word, $len - 2, 1)) { 2472 $len -= 2; 2473 } 2474 $part = substr($word, 0, $len); 2475 $word = (string) substr($word, $len); 2476 2477 if ($word !== '') { 2478 $message .= $part . sprintf('=%s', static::$LE); 2479 } else { 2480 $buf = $part; 2481 } 2482 } 2483 } else { 2484 $buf_o = $buf; 2485 if (!$firstword) { 2486 $buf .= ' '; 2487 } 2488 $buf .= $word; 2489 2490 if ('' !== $buf_o && strlen($buf) > $length) { 2491 $message .= $buf_o . $soft_break; 2492 $buf = $word; 2493 } 2494 } 2495 $firstword = false; 2496 } 2497 $message .= $buf . static::$LE; 2498 } 2499 2500 return $message; 2501 } 2502 2503 /** 2504 * Find the last character boundary prior to $maxLength in a utf-8 2505 * quoted-printable encoded string. 2506 * Original written by Colin Brown. 2507 * 2508 * @param string $encodedText utf-8 QP text 2509 * @param int $maxLength Find the last character boundary prior to this length 2510 * 2511 * @return int 2512 */ 2513 public function utf8CharBoundary($encodedText, $maxLength) 2514 { 2515 $foundSplitPos = false; 2516 $lookBack = 3; 2517 while (!$foundSplitPos) { 2518 $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack); 2519 $encodedCharPos = strpos($lastChunk, '='); 2520 if (false !== $encodedCharPos) { 2521 //Found start of encoded character byte within $lookBack block. 2522 //Check the encoded byte value (the 2 chars after the '=') 2523 $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2); 2524 $dec = hexdec($hex); 2525 if ($dec < 128) { 2526 //Single byte character. 2527 //If the encoded char was found at pos 0, it will fit 2528 //otherwise reduce maxLength to start of the encoded char 2529 if ($encodedCharPos > 0) { 2530 $maxLength -= $lookBack - $encodedCharPos; 2531 } 2532 $foundSplitPos = true; 2533 } elseif ($dec >= 192) { 2534 //First byte of a multi byte character 2535 //Reduce maxLength to split at start of character 2536 $maxLength -= $lookBack - $encodedCharPos; 2537 $foundSplitPos = true; 2538 } elseif ($dec < 192) { 2539 //Middle byte of a multi byte character, look further back 2540 $lookBack += 3; 2541 } 2542 } else { 2543 //No encoded character found 2544 $foundSplitPos = true; 2545 } 2546 } 2547 2548 return $maxLength; 2549 } 2550 2551 /** 2552 * Apply word wrapping to the message body. 2553 * Wraps the message body to the number of chars set in the WordWrap property. 2554 * You should only do this to plain-text bodies as wrapping HTML tags may break them. 2555 * This is called automatically by createBody(), so you don't need to call it yourself. 2556 */ 2557 public function setWordWrap() 2558 { 2559 if ($this->WordWrap < 1) { 2560 return; 2561 } 2562 2563 switch ($this->message_type) { 2564 case 'alt': 2565 case 'alt_inline': 2566 case 'alt_attach': 2567 case 'alt_inline_attach': 2568 $this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap); 2569 break; 2570 default: 2571 $this->Body = $this->wrapText($this->Body, $this->WordWrap); 2572 break; 2573 } 2574 } 2575 2576 /** 2577 * Assemble message headers. 2578 * 2579 * @return string The assembled headers 2580 */ 2581 public function createHeader() 2582 { 2583 $result = ''; 2584 2585 $result .= $this->headerLine('Date', '' === $this->MessageDate ? self::rfcDate() : $this->MessageDate); 2586 2587 //The To header is created automatically by mail(), so needs to be omitted here 2588 if ('mail' !== $this->Mailer) { 2589 if ($this->SingleTo) { 2590 foreach ($this->to as $toaddr) { 2591 $this->SingleToArray[] = $this->addrFormat($toaddr); 2592 } 2593 } elseif (count($this->to) > 0) { 2594 $result .= $this->addrAppend('To', $this->to); 2595 } elseif (count($this->cc) === 0) { 2596 $result .= $this->headerLine('To', 'undisclosed-recipients:;'); 2597 } 2598 } 2599 $result .= $this->addrAppend('From', [[trim($this->From), $this->FromName]]); 2600 2601 //sendmail and mail() extract Cc from the header before sending 2602 if (count($this->cc) > 0) { 2603 $result .= $this->addrAppend('Cc', $this->cc); 2604 } 2605 2606 //sendmail and mail() extract Bcc from the header before sending 2607 if ( 2608 ( 2609 'sendmail' === $this->Mailer || 'qmail' === $this->Mailer || 'mail' === $this->Mailer 2610 ) 2611 && count($this->bcc) > 0 2612 ) { 2613 $result .= $this->addrAppend('Bcc', $this->bcc); 2614 } 2615 2616 if (count($this->ReplyTo) > 0) { 2617 $result .= $this->addrAppend('Reply-To', $this->ReplyTo); 2618 } 2619 2620 //mail() sets the subject itself 2621 if ('mail' !== $this->Mailer) { 2622 $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject))); 2623 } 2624 2625 //Only allow a custom message ID if it conforms to RFC 5322 section 3.6.4 2626 //https://tools.ietf.org/html/rfc5322#section-3.6.4 2627 if ( 2628 '' !== $this->MessageID && 2629 preg_match( 2630 '/^<((([a-z\d!#$%&\'*+\/=?^_`{|}~-]+(\.[a-z\d!#$%&\'*+\/=?^_`{|}~-]+)*)' . 2631 '|("(([\x01-\x08\x0B\x0C\x0E-\x1F\x7F]|[\x21\x23-\x5B\x5D-\x7E])' . 2632 '|(\\[\x01-\x09\x0B\x0C\x0E-\x7F]))*"))@(([a-z\d!#$%&\'*+\/=?^_`{|}~-]+' . 2633 '(\.[a-z\d!#$%&\'*+\/=?^_`{|}~-]+)*)|(\[(([\x01-\x08\x0B\x0C\x0E-\x1F\x7F]' . 2634 '|[\x21-\x5A\x5E-\x7E])|(\\[\x01-\x09\x0B\x0C\x0E-\x7F]))*\])))>$/Di', 2635 $this->MessageID 2636 ) 2637 ) { 2638 $this->lastMessageID = $this->MessageID; 2639 } else { 2640 $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname()); 2641 } 2642 $result .= $this->headerLine('Message-ID', $this->lastMessageID); 2643 if (null !== $this->Priority) { 2644 $result .= $this->headerLine('X-Priority', $this->Priority); 2645 } 2646 if ('' === $this->XMailer) { 2647 //Empty string for default X-Mailer header 2648 $result .= $this->headerLine( 2649 'X-Mailer', 2650 'PHPMailer ' . self::VERSION . ' (https://github.com/PHPMailer/PHPMailer)' 2651 ); 2652 } elseif (is_string($this->XMailer) && trim($this->XMailer) !== '') { 2653 //Some string 2654 $result .= $this->headerLine('X-Mailer', trim($this->XMailer)); 2655 } //Other values result in no X-Mailer header 2656 2657 if ('' !== $this->ConfirmReadingTo) { 2658 $result .= $this->headerLine('Disposition-Notification-To', '<' . $this->ConfirmReadingTo . '>'); 2659 } 2660 2661 //Add custom headers 2662 foreach ($this->CustomHeader as $header) { 2663 $result .= $this->headerLine( 2664 trim($header[0]), 2665 $this->encodeHeader(trim($header[1])) 2666 ); 2667 } 2668 if (!$this->sign_key_file) { 2669 $result .= $this->headerLine('MIME-Version', '1.0'); 2670 $result .= $this->getMailMIME(); 2671 } 2672 2673 return $result; 2674 } 2675 2676 /** 2677 * Get the message MIME type headers. 2678 * 2679 * @return string 2680 */ 2681 public function getMailMIME() 2682 { 2683 $result = ''; 2684 $ismultipart = true; 2685 switch ($this->message_type) { 2686 case 'inline': 2687 $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); 2688 $result .= $this->textLine(' boundary="' . $this->boundary[1] . '"'); 2689 break; 2690 case 'attach': 2691 case 'inline_attach': 2692 case 'alt_attach': 2693 case 'alt_inline_attach': 2694 $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_MIXED . ';'); 2695 $result .= $this->textLine(' boundary="' . $this->boundary[1] . '"'); 2696 break; 2697 case 'alt': 2698 case 'alt_inline': 2699 $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); 2700 $result .= $this->textLine(' boundary="' . $this->boundary[1] . '"'); 2701 break; 2702 default: 2703 //Catches case 'plain': and case '': 2704 $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet); 2705 $ismultipart = false; 2706 break; 2707 } 2708 //RFC1341 part 5 says 7bit is assumed if not specified 2709 if (static::ENCODING_7BIT !== $this->Encoding) { 2710 //RFC 2045 section 6.4 says multipart MIME parts may only use 7bit, 8bit or binary CTE 2711 if ($ismultipart) { 2712 if (static::ENCODING_8BIT === $this->Encoding) { 2713 $result .= $this->headerLine('Content-Transfer-Encoding', static::ENCODING_8BIT); 2714 } 2715 //The only remaining alternatives are quoted-printable and base64, which are both 7bit compatible 2716 } else { 2717 $result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding); 2718 } 2719 } 2720 2721 return $result; 2722 } 2723 2724 /** 2725 * Returns the whole MIME message. 2726 * Includes complete headers and body. 2727 * Only valid post preSend(). 2728 * 2729 * @see PHPMailer::preSend() 2730 * 2731 * @return string 2732 */ 2733 public function getSentMIMEMessage() 2734 { 2735 return static::stripTrailingWSP($this->MIMEHeader . $this->mailHeader) . 2736 static::$LE . static::$LE . $this->MIMEBody; 2737 } 2738 2739 /** 2740 * Create a unique ID to use for boundaries. 2741 * 2742 * @return string 2743 */ 2744 protected function generateId() 2745 { 2746 $len = 32; //32 bytes = 256 bits 2747 $bytes = ''; 2748 if (function_exists('random_bytes')) { 2749 try { 2750 $bytes = random_bytes($len); 2751 } catch (\Exception $e) { 2752 //Do nothing 2753 } 2754 } elseif (function_exists('openssl_random_pseudo_bytes')) { 2755 /** @noinspection CryptographicallySecureRandomnessInspection */ 2756 $bytes = openssl_random_pseudo_bytes($len); 2757 } 2758 if ($bytes === '') { 2759 //We failed to produce a proper random string, so make do. 2760 //Use a hash to force the length to the same as the other methods 2761 $bytes = hash('sha256', uniqid((string) mt_rand(), true), true); 2762 } 2763 2764 //We don't care about messing up base64 format here, just want a random string 2765 return str_replace(['=', '+', '/'], '', base64_encode(hash('sha256', $bytes, true))); 2766 } 2767 2768 /** 2769 * Assemble the message body. 2770 * Returns an empty string on failure. 2771 * 2772 * @throws Exception 2773 * 2774 * @return string The assembled message body 2775 */ 2776 public function createBody() 2777 { 2778 $body = ''; 2779 //Create unique IDs and preset boundaries 2780 $this->uniqueid = $this->generateId(); 2781 $this->boundary[1] = 'b1_' . $this->uniqueid; 2782 $this->boundary[2] = 'b2_' . $this->uniqueid; 2783 $this->boundary[3] = 'b3_' . $this->uniqueid; 2784 2785 if ($this->sign_key_file) { 2786 $body .= $this->getMailMIME() . static::$LE; 2787 } 2788 2789 $this->setWordWrap(); 2790 2791 $bodyEncoding = $this->Encoding; 2792 $bodyCharSet = $this->CharSet; 2793 //Can we do a 7-bit downgrade? 2794 if (static::ENCODING_8BIT === $bodyEncoding && !$this->has8bitChars($this->Body)) { 2795 $bodyEncoding = static::ENCODING_7BIT; 2796 //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit 2797 $bodyCharSet = static::CHARSET_ASCII; 2798 } 2799 //If lines are too long, and we're not already using an encoding that will shorten them, 2800 //change to quoted-printable transfer encoding for the body part only 2801 if (static::ENCODING_BASE64 !== $this->Encoding && static::hasLineLongerThanMax($this->Body)) { 2802 $bodyEncoding = static::ENCODING_QUOTED_PRINTABLE; 2803 } 2804 2805 $altBodyEncoding = $this->Encoding; 2806 $altBodyCharSet = $this->CharSet; 2807 //Can we do a 7-bit downgrade? 2808 if (static::ENCODING_8BIT === $altBodyEncoding && !$this->has8bitChars($this->AltBody)) { 2809 $altBodyEncoding = static::ENCODING_7BIT; 2810 //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit 2811 $altBodyCharSet = static::CHARSET_ASCII; 2812 } 2813 //If lines are too long, and we're not already using an encoding that will shorten them, 2814 //change to quoted-printable transfer encoding for the alt body part only 2815 if (static::ENCODING_BASE64 !== $altBodyEncoding && static::hasLineLongerThanMax($this->AltBody)) { 2816 $altBodyEncoding = static::ENCODING_QUOTED_PRINTABLE; 2817 } 2818 //Use this as a preamble in all multipart message types 2819 $mimepre = 'This is a multi-part message in MIME format.' . static::$LE . static::$LE; 2820 switch ($this->message_type) { 2821 case 'inline': 2822 $body .= $mimepre; 2823 $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); 2824 $body .= $this->encodeString($this->Body, $bodyEncoding); 2825 $body .= static::$LE; 2826 $body .= $this->attachAll('inline', $this->boundary[1]); 2827 break; 2828 case 'attach': 2829 $body .= $mimepre; 2830 $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); 2831 $body .= $this->encodeString($this->Body, $bodyEncoding); 2832 $body .= static::$LE; 2833 $body .= $this->attachAll('attachment', $this->boundary[1]); 2834 break; 2835 case 'inline_attach': 2836 $body .= $mimepre; 2837 $body .= $this->textLine('--' . $this->boundary[1]); 2838 $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); 2839 $body .= $this->textLine(' boundary="' . $this->boundary[2] . '";'); 2840 $body .= $this->textLine(' type="' . static::CONTENT_TYPE_TEXT_HTML . '"'); 2841 $body .= static::$LE; 2842 $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding); 2843 $body .= $this->encodeString($this->Body, $bodyEncoding); 2844 $body .= static::$LE; 2845 $body .= $this->attachAll('inline', $this->boundary[2]); 2846 $body .= static::$LE; 2847 $body .= $this->attachAll('attachment', $this->boundary[1]); 2848 break; 2849 case 'alt': 2850 $body .= $mimepre; 2851 $body .= $this->getBoundary( 2852 $this->boundary[1], 2853 $altBodyCharSet, 2854 static::CONTENT_TYPE_PLAINTEXT, 2855 $altBodyEncoding 2856 ); 2857 $body .= $this->encodeString($this->AltBody, $altBodyEncoding); 2858 $body .= static::$LE; 2859 $body .= $this->getBoundary( 2860 $this->boundary[1], 2861 $bodyCharSet, 2862 static::CONTENT_TYPE_TEXT_HTML, 2863 $bodyEncoding 2864 ); 2865 $body .= $this->encodeString($this->Body, $bodyEncoding); 2866 $body .= static::$LE; 2867 if (!empty($this->Ical)) { 2868 $method = static::ICAL_METHOD_REQUEST; 2869 foreach (static::$IcalMethods as $imethod) { 2870 if (stripos($this->Ical, 'METHOD:' . $imethod) !== false) { 2871 $method = $imethod; 2872 break; 2873 } 2874 } 2875 $body .= $this->getBoundary( 2876 $this->boundary[1], 2877 '', 2878 static::CONTENT_TYPE_TEXT_CALENDAR . '; method=' . $method, 2879 '' 2880 ); 2881 $body .= $this->encodeString($this->Ical, $this->Encoding); 2882 $body .= static::$LE; 2883 } 2884 $body .= $this->endBoundary($this->boundary[1]); 2885 break; 2886 case 'alt_inline': 2887 $body .= $mimepre; 2888 $body .= $this->getBoundary( 2889 $this->boundary[1], 2890 $altBodyCharSet, 2891 static::CONTENT_TYPE_PLAINTEXT, 2892 $altBodyEncoding 2893 ); 2894 $body .= $this->encodeString($this->AltBody, $altBodyEncoding); 2895 $body .= static::$LE; 2896 $body .= $this->textLine('--' . $this->boundary[1]); 2897 $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); 2898 $body .= $this->textLine(' boundary="' . $this->boundary[2] . '";'); 2899 $body .= $this->textLine(' type="' . static::CONTENT_TYPE_TEXT_HTML . '"'); 2900 $body .= static::$LE; 2901 $body .= $this->getBoundary( 2902 $this->boundary[2], 2903 $bodyCharSet, 2904 static::CONTENT_TYPE_TEXT_HTML, 2905 $bodyEncoding 2906 ); 2907 $body .= $this->encodeString($this->Body, $bodyEncoding); 2908 $body .= static::$LE; 2909 $body .= $this->attachAll('inline', $this->boundary[2]); 2910 $body .= static::$LE; 2911 $body .= $this->endBoundary($this->boundary[1]); 2912 break; 2913 case 'alt_attach': 2914 $body .= $mimepre; 2915 $body .= $this->textLine('--' . $this->boundary[1]); 2916 $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); 2917 $body .= $this->textLine(' boundary="' . $this->boundary[2] . '"'); 2918 $body .= static::$LE; 2919 $body .= $this->getBoundary( 2920 $this->boundary[2], 2921 $altBodyCharSet, 2922 static::CONTENT_TYPE_PLAINTEXT, 2923 $altBodyEncoding 2924 ); 2925 $body .= $this->encodeString($this->AltBody, $altBodyEncoding); 2926 $body .= static::$LE; 2927 $body .= $this->getBoundary( 2928 $this->boundary[2], 2929 $bodyCharSet, 2930 static::CONTENT_TYPE_TEXT_HTML, 2931 $bodyEncoding 2932 ); 2933 $body .= $this->encodeString($this->Body, $bodyEncoding); 2934 $body .= static::$LE; 2935 if (!empty($this->Ical)) { 2936 $method = static::ICAL_METHOD_REQUEST; 2937 foreach (static::$IcalMethods as $imethod) { 2938 if (stripos($this->Ical, 'METHOD:' . $imethod) !== false) { 2939 $method = $imethod; 2940 break; 2941 } 2942 } 2943 $body .= $this->getBoundary( 2944 $this->boundary[2], 2945 '', 2946 static::CONTENT_TYPE_TEXT_CALENDAR . '; method=' . $method, 2947 '' 2948 ); 2949 $body .= $this->encodeString($this->Ical, $this->Encoding); 2950 } 2951 $body .= $this->endBoundary($this->boundary[2]); 2952 $body .= static::$LE; 2953 $body .= $this->attachAll('attachment', $this->boundary[1]); 2954 break; 2955 case 'alt_inline_attach': 2956 $body .= $mimepre; 2957 $body .= $this->textLine('--' . $this->boundary[1]); 2958 $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); 2959 $body .= $this->textLine(' boundary="' . $this->boundary[2] . '"'); 2960 $body .= static::$LE; 2961 $body .= $this->getBoundary( 2962 $this->boundary[2], 2963 $altBodyCharSet, 2964 static::CONTENT_TYPE_PLAINTEXT, 2965 $altBodyEncoding 2966 ); 2967 $body .= $this->encodeString($this->AltBody, $altBodyEncoding); 2968 $body .= static::$LE; 2969 $body .= $this->textLine('--' . $this->boundary[2]); 2970 $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); 2971 $body .= $this->textLine(' boundary="' . $this->boundary[3] . '";'); 2972 $body .= $this->textLine(' type="' . static::CONTENT_TYPE_TEXT_HTML . '"'); 2973 $body .= static::$LE; 2974 $body .= $this->getBoundary( 2975 $this->boundary[3], 2976 $bodyCharSet, 2977 static::CONTENT_TYPE_TEXT_HTML, 2978 $bodyEncoding 2979 ); 2980 $body .= $this->encodeString($this->Body, $bodyEncoding); 2981 $body .= static::$LE; 2982 $body .= $this->attachAll('inline', $this->boundary[3]); 2983 $body .= static::$LE; 2984 $body .= $this->endBoundary($this->boundary[2]); 2985 $body .= static::$LE; 2986 $body .= $this->attachAll('attachment', $this->boundary[1]); 2987 break; 2988 default: 2989 //Catch case 'plain' and case '', applies to simple `text/plain` and `text/html` body content types 2990 //Reset the `Encoding` property in case we changed it for line length reasons 2991 $this->Encoding = $bodyEncoding; 2992 $body .= $this->encodeString($this->Body, $this->Encoding); 2993 break; 2994 } 2995 2996 if ($this->isError()) { 2997 $body = ''; 2998 if ($this->exceptions) { 2999 throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL); 3000 } 3001 } elseif ($this->sign_key_file) { 3002 try { 3003 if (!defined('PKCS7_TEXT')) { 3004 throw new Exception($this->lang('extension_missing') . 'openssl'); 3005 } 3006 3007 $file = tempnam(sys_get_temp_dir(), 'srcsign'); 3008 $signed = tempnam(sys_get_temp_dir(), 'mailsign'); 3009 file_put_contents($file, $body); 3010 3011 //Workaround for PHP bug https://bugs.php.net/bug.php?id=69197 3012 if (empty($this->sign_extracerts_file)) { 3013 $sign = @openssl_pkcs7_sign( 3014 $file, 3015 $signed, 3016 'file://' . realpath($this->sign_cert_file), 3017 ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], 3018 [] 3019 ); 3020 } else { 3021 $sign = @openssl_pkcs7_sign( 3022 $file, 3023 $signed, 3024 'file://' . realpath($this->sign_cert_file), 3025 ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], 3026 [], 3027 PKCS7_DETACHED, 3028 $this->sign_extracerts_file 3029 ); 3030 } 3031 3032 @unlink($file); 3033 if ($sign) { 3034 $body = file_get_contents($signed); 3035 @unlink($signed); 3036 //The message returned by openssl contains both headers and body, so need to split them up 3037 $parts = explode("\n\n", $body, 2); 3038 $this->MIMEHeader .= $parts[0] . static::$LE . static::$LE; 3039 $body = $parts[1]; 3040 } else { 3041 @unlink($signed); 3042 throw new Exception($this->lang('signing') . openssl_error_string()); 3043 } 3044 } catch (Exception $exc) { 3045 $body = ''; 3046 if ($this->exceptions) { 3047 throw $exc; 3048 } 3049 } 3050 } 3051 3052 return $body; 3053 } 3054 3055 /** 3056 * Return the start of a message boundary. 3057 * 3058 * @param string $boundary 3059 * @param string $charSet 3060 * @param string $contentType 3061 * @param string $encoding 3062 * 3063 * @return string 3064 */ 3065 protected function getBoundary($boundary, $charSet, $contentType, $encoding) 3066 { 3067 $result = ''; 3068 if ('' === $charSet) { 3069 $charSet = $this->CharSet; 3070 } 3071 if ('' === $contentType) { 3072 $contentType = $this->ContentType; 3073 } 3074 if ('' === $encoding) { 3075 $encoding = $this->Encoding; 3076 } 3077 $result .= $this->textLine('--' . $boundary); 3078 $result .= sprintf('Content-Type: %s; charset=%s', $contentType, $charSet); 3079 $result .= static::$LE; 3080 //RFC1341 part 5 says 7bit is assumed if not specified 3081 if (static::ENCODING_7BIT !== $encoding) { 3082 $result .= $this->headerLine('Content-Transfer-Encoding', $encoding); 3083 } 3084 $result .= static::$LE; 3085 3086 return $result; 3087 } 3088 3089 /** 3090 * Return the end of a message boundary. 3091 * 3092 * @param string $boundary 3093 * 3094 * @return string 3095 */ 3096 protected function endBoundary($boundary) 3097 { 3098 return static::$LE . '--' . $boundary . '--' . static::$LE; 3099 } 3100 3101 /** 3102 * Set the message type. 3103 * PHPMailer only supports some preset message types, not arbitrary MIME structures. 3104 */ 3105 protected function setMessageType() 3106 { 3107 $type = []; 3108 if ($this->alternativeExists()) { 3109 $type[] = 'alt'; 3110 } 3111 if ($this->inlineImageExists()) { 3112 $type[] = 'inline'; 3113 } 3114 if ($this->attachmentExists()) { 3115 $type[] = 'attach'; 3116 } 3117 $this->message_type = implode('_', $type); 3118 if ('' === $this->message_type) { 3119 //The 'plain' message_type refers to the message having a single body element, not that it is plain-text 3120 $this->message_type = 'plain'; 3121 } 3122 } 3123 3124 /** 3125 * Format a header line. 3126 * 3127 * @param string $name 3128 * @param string|int $value 3129 * 3130 * @return string 3131 */ 3132 public function headerLine($name, $value) 3133 { 3134 return $name . ': ' . $value . static::$LE; 3135 } 3136 3137 /** 3138 * Return a formatted mail line. 3139 * 3140 * @param string $value 3141 * 3142 * @return string 3143 */ 3144 public function textLine($value) 3145 { 3146 return $value . static::$LE; 3147 } 3148 3149 /** 3150 * Add an attachment from a path on the filesystem. 3151 * Never use a user-supplied path to a file! 3152 * Returns false if the file could not be found or read. 3153 * Explicitly *does not* support passing URLs; PHPMailer is not an HTTP client. 3154 * If you need to do that, fetch the resource yourself and pass it in via a local file or string. 3155 * 3156 * @param string $path Path to the attachment 3157 * @param string $name Overrides the attachment name 3158 * @param string $encoding File encoding (see $Encoding) 3159 * @param string $type MIME type, e.g. `image/jpeg`; determined automatically from $path if not specified 3160 * @param string $disposition Disposition to use 3161 * 3162 * @throws Exception 3163 * 3164 * @return bool 3165 */ 3166 public function addAttachment( 3167 $path, 3168 $name = '', 3169 $encoding = self::ENCODING_BASE64, 3170 $type = '', 3171 $disposition = 'attachment' 3172 ) { 3173 try { 3174 if (!static::fileIsAccessible($path)) { 3175 throw new Exception($this->lang('file_access') . $path, self::STOP_CONTINUE); 3176 } 3177 3178 //If a MIME type is not specified, try to work it out from the file name 3179 if ('' === $type) { 3180 $type = static::filenameToType($path); 3181 } 3182 3183 $filename = (string) static::mb_pathinfo($path, PATHINFO_BASENAME); 3184 if ('' === $name) { 3185 $name = $filename; 3186 } 3187 if (!$this->validateEncoding($encoding)) { 3188 throw new Exception($this->lang('encoding') . $encoding); 3189 } 3190 3191 $this->attachment[] = [ 3192 0 => $path, 3193 1 => $filename, 3194 2 => $name, 3195 3 => $encoding, 3196 4 => $type, 3197 5 => false, //isStringAttachment 3198 6 => $disposition, 3199 7 => $name, 3200 ]; 3201 } catch (Exception $exc) { 3202 $this->setError($exc->getMessage()); 3203 $this->edebug($exc->getMessage()); 3204 if ($this->exceptions) { 3205 throw $exc; 3206 } 3207 3208 return false; 3209 } 3210 3211 return true; 3212 } 3213 3214 /** 3215 * Return the array of attachments. 3216 * 3217 * @return array 3218 */ 3219 public function getAttachments() 3220 { 3221 return $this->attachment; 3222 } 3223 3224 /** 3225 * Attach all file, string, and binary attachments to the message. 3226 * Returns an empty string on failure. 3227 * 3228 * @param string $disposition_type 3229 * @param string $boundary 3230 * 3231 * @throws Exception 3232 * 3233 * @return string 3234 */ 3235 protected function attachAll($disposition_type, $boundary) 3236 { 3237 //Return text of body 3238 $mime = []; 3239 $cidUniq = []; 3240 $incl = []; 3241 3242 //Add all attachments 3243 foreach ($this->attachment as $attachment) { 3244 //Check if it is a valid disposition_filter 3245 if ($attachment[6] === $disposition_type) { 3246 //Check for string attachment 3247 $string = ''; 3248 $path = ''; 3249 $bString = $attachment[5]; 3250 if ($bString) { 3251 $string = $attachment[0]; 3252 } else { 3253 $path = $attachment[0]; 3254 } 3255 3256 $inclhash = hash('sha256', serialize($attachment)); 3257 if (in_array($inclhash, $incl, true)) { 3258 continue; 3259 } 3260 $incl[] = $inclhash; 3261 $name = $attachment[2]; 3262 $encoding = $attachment[3]; 3263 $type = $attachment[4]; 3264 $disposition = $attachment[6]; 3265 $cid = $attachment[7]; 3266 if ('inline' === $disposition && array_key_exists($cid, $cidUniq)) { 3267 continue; 3268 } 3269 $cidUniq[$cid] = true; 3270 3271 $mime[] = sprintf('--%s%s', $boundary, static::$LE); 3272 //Only include a filename property if we have one 3273 if (!empty($name)) { 3274 $mime[] = sprintf( 3275 'Content-Type: %s; name=%s%s', 3276 $type, 3277 static::quotedString($this->encodeHeader($this->secureHeader($name))), 3278 static::$LE 3279 ); 3280 } else { 3281 $mime[] = sprintf( 3282 'Content-Type: %s%s', 3283 $type, 3284 static::$LE 3285 ); 3286 } 3287 //RFC1341 part 5 says 7bit is assumed if not specified 3288 if (static::ENCODING_7BIT !== $encoding) { 3289 $mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, static::$LE); 3290 } 3291 3292 //Only set Content-IDs on inline attachments 3293 if ((string) $cid !== '' && $disposition === 'inline') { 3294 $mime[] = 'Content-ID: <' . $this->encodeHeader($this->secureHeader($cid)) . '>' . static::$LE; 3295 } 3296 3297 //Allow for bypassing the Content-Disposition header 3298 if (!empty($disposition)) { 3299 $encoded_name = $this->encodeHeader($this->secureHeader($name)); 3300 if (!empty($encoded_name)) { 3301 $mime[] = sprintf( 3302 'Content-Disposition: %s; filename=%s%s', 3303 $disposition, 3304 static::quotedString($encoded_name), 3305 static::$LE . static::$LE 3306 ); 3307 } else { 3308 $mime[] = sprintf( 3309 'Content-Disposition: %s%s', 3310 $disposition, 3311 static::$LE . static::$LE 3312 ); 3313 } 3314 } else { 3315 $mime[] = static::$LE; 3316 } 3317 3318 //Encode as string attachment 3319 if ($bString) { 3320 $mime[] = $this->encodeString($string, $encoding); 3321 } else { 3322 $mime[] = $this->encodeFile($path, $encoding); 3323 } 3324 if ($this->isError()) { 3325 return ''; 3326 } 3327 $mime[] = static::$LE; 3328 } 3329 } 3330 3331 $mime[] = sprintf('--%s--%s', $boundary, static::$LE); 3332 3333 return implode('', $mime); 3334 } 3335 3336 /** 3337 * Encode a file attachment in requested format. 3338 * Returns an empty string on failure. 3339 * 3340 * @param string $path The full path to the file 3341 * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' 3342 * 3343 * @return string 3344 */ 3345 protected function encodeFile($path, $encoding = self::ENCODING_BASE64) 3346 { 3347 try { 3348 if (!static::fileIsAccessible($path)) { 3349 throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE); 3350 } 3351 $file_buffer = file_get_contents($path); 3352 if (false === $file_buffer) { 3353 throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE); 3354 } 3355 $file_buffer = $this->encodeString($file_buffer, $encoding); 3356 3357 return $file_buffer; 3358 } catch (Exception $exc) { 3359 $this->setError($exc->getMessage()); 3360 $this->edebug($exc->getMessage()); 3361 if ($this->exceptions) { 3362 throw $exc; 3363 } 3364 3365 return ''; 3366 } 3367 } 3368 3369 /** 3370 * Encode a string in requested format. 3371 * Returns an empty string on failure. 3372 * 3373 * @param string $str The text to encode 3374 * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' 3375 * 3376 * @throws Exception 3377 * 3378 * @return string 3379 */ 3380 public function encodeString($str, $encoding = self::ENCODING_BASE64) 3381 { 3382 $encoded = ''; 3383 switch (strtolower($encoding)) { 3384 case static::ENCODING_BASE64: 3385 $encoded = chunk_split( 3386 base64_encode($str), 3387 static::STD_LINE_LENGTH, 3388 static::$LE 3389 ); 3390 break; 3391 case static::ENCODING_7BIT: 3392 case static::ENCODING_8BIT: 3393 $encoded = static::normalizeBreaks($str); 3394 //Make sure it ends with a line break 3395 if (substr($encoded, -(strlen(static::$LE))) !== static::$LE) { 3396 $encoded .= static::$LE; 3397 } 3398 break; 3399 case static::ENCODING_BINARY: 3400 $encoded = $str; 3401 break; 3402 case static::ENCODING_QUOTED_PRINTABLE: 3403 $encoded = $this->encodeQP($str); 3404 break; 3405 default: 3406 $this->setError($this->lang('encoding') . $encoding); 3407 if ($this->exceptions) { 3408 throw new Exception($this->lang('encoding') . $encoding); 3409 } 3410 break; 3411 } 3412 3413 return $encoded; 3414 } 3415 3416 /** 3417 * Encode a header value (not including its label) optimally. 3418 * Picks shortest of Q, B, or none. Result includes folding if needed. 3419 * See RFC822 definitions for phrase, comment and text positions. 3420 * 3421 * @param string $str The header value to encode 3422 * @param string $position What context the string will be used in 3423 * 3424 * @return string 3425 */ 3426 public function encodeHeader($str, $position = 'text') 3427 { 3428 $matchcount = 0; 3429 switch (strtolower($position)) { 3430 case 'phrase': 3431 if (!preg_match('/[\200-\377]/', $str)) { 3432 //Can't use addslashes as we don't know the value of magic_quotes_sybase 3433 $encoded = addcslashes($str, "\0..\37\177\\\""); 3434 if (($str === $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) { 3435 return $encoded; 3436 } 3437 3438 return "\"$encoded\""; 3439 } 3440 $matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches); 3441 break; 3442 /* @noinspection PhpMissingBreakStatementInspection */ 3443 case 'comment': 3444 $matchcount = preg_match_all('/[()"]/', $str, $matches); 3445 //fallthrough 3446 case 'text': 3447 default: 3448 $matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches); 3449 break; 3450 } 3451 3452 if ($this->has8bitChars($str)) { 3453 $charset = $this->CharSet; 3454 } else { 3455 $charset = static::CHARSET_ASCII; 3456 } 3457 3458 //Q/B encoding adds 8 chars and the charset ("` =?<charset>?[QB]?<content>?=`"). 3459 $overhead = 8 + strlen($charset); 3460 3461 if ('mail' === $this->Mailer) { 3462 $maxlen = static::MAIL_MAX_LINE_LENGTH - $overhead; 3463 } else { 3464 $maxlen = static::MAX_LINE_LENGTH - $overhead; 3465 } 3466 3467 //Select the encoding that produces the shortest output and/or prevents corruption. 3468 if ($matchcount > strlen($str) / 3) { 3469 //More than 1/3 of the content needs encoding, use B-encode. 3470 $encoding = 'B'; 3471 } elseif ($matchcount > 0) { 3472 //Less than 1/3 of the content needs encoding, use Q-encode. 3473 $encoding = 'Q'; 3474 } elseif (strlen($str) > $maxlen) { 3475 //No encoding needed, but value exceeds max line length, use Q-encode to prevent corruption. 3476 $encoding = 'Q'; 3477 } else { 3478 //No reformatting needed 3479 $encoding = false; 3480 } 3481 3482 switch ($encoding) { 3483 case 'B': 3484 if ($this->hasMultiBytes($str)) { 3485 //Use a custom function which correctly encodes and wraps long 3486 //multibyte strings without breaking lines within a character 3487 $encoded = $this->base64EncodeWrapMB($str, "\n"); 3488 } else { 3489 $encoded = base64_encode($str); 3490 $maxlen -= $maxlen % 4; 3491 $encoded = trim(chunk_split($encoded, $maxlen, "\n")); 3492 } 3493 $encoded = preg_replace('/^(.*)$/m', ' =?' . $charset . "?$encoding?\\1?=", $encoded); 3494 break; 3495 case 'Q': 3496 $encoded = $this->encodeQ($str, $position); 3497 $encoded = $this->wrapText($encoded, $maxlen, true); 3498 $encoded = str_replace('=' . static::$LE, "\n", trim($encoded)); 3499 $encoded = preg_replace('/^(.*)$/m', ' =?' . $charset . "?$encoding?\\1?=", $encoded); 3500 break; 3501 default: 3502 return $str; 3503 } 3504 3505 return trim(static::normalizeBreaks($encoded)); 3506 } 3507 3508 /** 3509 * Check if a string contains multi-byte characters. 3510 * 3511 * @param string $str multi-byte text to wrap encode 3512 * 3513 * @return bool 3514 */ 3515 public function hasMultiBytes($str) 3516 { 3517 if (function_exists('mb_strlen')) { 3518 return strlen($str) > mb_strlen($str, $this->CharSet); 3519 } 3520 3521 //Assume no multibytes (we can't handle without mbstring functions anyway) 3522 return false; 3523 } 3524 3525 /** 3526 * Does a string contain any 8-bit chars (in any charset)? 3527 * 3528 * @param string $text 3529 * 3530 * @return bool 3531 */ 3532 public function has8bitChars($text) 3533 { 3534 return (bool) preg_match('/[\x80-\xFF]/', $text); 3535 } 3536 3537 /** 3538 * Encode and wrap long multibyte strings for mail headers 3539 * without breaking lines within a character. 3540 * Adapted from a function by paravoid. 3541 * 3542 * @see http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283 3543 * 3544 * @param string $str multi-byte text to wrap encode 3545 * @param string $linebreak string to use as linefeed/end-of-line 3546 * 3547 * @return string 3548 */ 3549 public function base64EncodeWrapMB($str, $linebreak = null) 3550 { 3551 $start = '=?' . $this->CharSet . '?B?'; 3552 $end = '?='; 3553 $encoded = ''; 3554 if (null === $linebreak) { 3555 $linebreak = static::$LE; 3556 } 3557 3558 $mb_length = mb_strlen($str, $this->CharSet); 3559 //Each line must have length <= 75, including $start and $end 3560 $length = 75 - strlen($start) - strlen($end); 3561 //Average multi-byte ratio 3562 $ratio = $mb_length / strlen($str); 3563 //Base64 has a 4:3 ratio 3564 $avgLength = floor($length * $ratio * .75); 3565 3566 $offset = 0; 3567 for ($i = 0; $i < $mb_length; $i += $offset) { 3568 $lookBack = 0; 3569 do { 3570 $offset = $avgLength - $lookBack; 3571 $chunk = mb_substr($str, $i, $offset, $this->CharSet); 3572 $chunk = base64_encode($chunk); 3573 ++$lookBack; 3574 } while (strlen($chunk) > $length); 3575 $encoded .= $chunk . $linebreak; 3576 } 3577 3578 //Chomp the last linefeed 3579 return substr($encoded, 0, -strlen($linebreak)); 3580 } 3581 3582 /** 3583 * Encode a string in quoted-printable format. 3584 * According to RFC2045 section 6.7. 3585 * 3586 * @param string $string The text to encode 3587 * 3588 * @return string 3589 */ 3590 public function encodeQP($string) 3591 { 3592 return static::normalizeBreaks(quoted_printable_encode($string)); 3593 } 3594 3595 /** 3596 * Encode a string using Q encoding. 3597 * 3598 * @see http://tools.ietf.org/html/rfc2047#section-4.2 3599 * 3600 * @param string $str the text to encode 3601 * @param string $position Where the text is going to be used, see the RFC for what that means 3602 * 3603 * @return string 3604 */ 3605 public function encodeQ($str, $position = 'text') 3606 { 3607 //There should not be any EOL in the string 3608 $pattern = ''; 3609 $encoded = str_replace(["\r", "\n"], '', $str); 3610 switch (strtolower($position)) { 3611 case 'phrase': 3612 //RFC 2047 section 5.3 3613 $pattern = '^A-Za-z0-9!*+\/ -'; 3614 break; 3615 /* 3616 * RFC 2047 section 5.2. 3617 * Build $pattern without including delimiters and [] 3618 */ 3619 /* @noinspection PhpMissingBreakStatementInspection */ 3620 case 'comment': 3621 $pattern = '\(\)"'; 3622 /* Intentional fall through */ 3623 case 'text': 3624 default: 3625 //RFC 2047 section 5.1 3626 //Replace every high ascii, control, =, ? and _ characters 3627 $pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern; 3628 break; 3629 } 3630 $matches = []; 3631 if (preg_match_all("/[{$pattern}]/", $encoded, $matches)) { 3632 //If the string contains an '=', make sure it's the first thing we replace 3633 //so as to avoid double-encoding 3634 $eqkey = array_search('=', $matches[0], true); 3635 if (false !== $eqkey) { 3636 unset($matches[0][$eqkey]); 3637 array_unshift($matches[0], '='); 3638 } 3639 foreach (array_unique($matches[0]) as $char) { 3640 $encoded = str_replace($char, '=' . sprintf('%02X', ord($char)), $encoded); 3641 } 3642 } 3643 //Replace spaces with _ (more readable than =20) 3644 //RFC 2047 section 4.2(2) 3645 return str_replace(' ', '_', $encoded); 3646 } 3647 3648 /** 3649 * Add a string or binary attachment (non-filesystem). 3650 * This method can be used to attach ascii or binary data, 3651 * such as a BLOB record from a database. 3652 * 3653 * @param string $string String attachment data 3654 * @param string $filename Name of the attachment 3655 * @param string $encoding File encoding (see $Encoding) 3656 * @param string $type File extension (MIME) type 3657 * @param string $disposition Disposition to use 3658 * 3659 * @throws Exception 3660 * 3661 * @return bool True on successfully adding an attachment 3662 */ 3663 public function addStringAttachment( 3664 $string, 3665 $filename, 3666 $encoding = self::ENCODING_BASE64, 3667 $type = '', 3668 $disposition = 'attachment' 3669 ) { 3670 try { 3671 //If a MIME type is not specified, try to work it out from the file name 3672 if ('' === $type) { 3673 $type = static::filenameToType($filename); 3674 } 3675 3676 if (!$this->validateEncoding($encoding)) { 3677 throw new Exception($this->lang('encoding') . $encoding); 3678 } 3679 3680 //Append to $attachment array 3681 $this->attachment[] = [ 3682 0 => $string, 3683 1 => $filename, 3684 2 => static::mb_pathinfo($filename, PATHINFO_BASENAME), 3685 3 => $encoding, 3686 4 => $type, 3687 5 => true, //isStringAttachment 3688 6 => $disposition, 3689 7 => 0, 3690 ]; 3691 } catch (Exception $exc) { 3692 $this->setError($exc->getMessage()); 3693 $this->edebug($exc->getMessage()); 3694 if ($this->exceptions) { 3695 throw $exc; 3696 } 3697 3698 return false; 3699 } 3700 3701 return true; 3702 } 3703 3704 /** 3705 * Add an embedded (inline) attachment from a file. 3706 * This can include images, sounds, and just about any other document type. 3707 * These differ from 'regular' attachments in that they are intended to be 3708 * displayed inline with the message, not just attached for download. 3709 * This is used in HTML messages that embed the images 3710 * the HTML refers to using the $cid value. 3711 * Never use a user-supplied path to a file! 3712 * 3713 * @param string $path Path to the attachment 3714 * @param string $cid Content ID of the attachment; Use this to reference 3715 * the content when using an embedded image in HTML 3716 * @param string $name Overrides the attachment name 3717 * @param string $encoding File encoding (see $Encoding) 3718 * @param string $type File MIME type 3719 * @param string $disposition Disposition to use 3720 * 3721 * @throws Exception 3722 * 3723 * @return bool True on successfully adding an attachment 3724 */ 3725 public function addEmbeddedImage( 3726 $path, 3727 $cid, 3728 $name = '', 3729 $encoding = self::ENCODING_BASE64, 3730 $type = '', 3731 $disposition = 'inline' 3732 ) { 3733 try { 3734 if (!static::fileIsAccessible($path)) { 3735 throw new Exception($this->lang('file_access') . $path, self::STOP_CONTINUE); 3736 } 3737 3738 //If a MIME type is not specified, try to work it out from the file name 3739 if ('' === $type) { 3740 $type = static::filenameToType($path); 3741 } 3742 3743 if (!$this->validateEncoding($encoding)) { 3744 throw new Exception($this->lang('encoding') . $encoding); 3745 } 3746 3747 $filename = (string) static::mb_pathinfo($path, PATHINFO_BASENAME); 3748 if ('' === $name) { 3749 $name = $filename; 3750 } 3751 3752 //Append to $attachment array 3753 $this->attachment[] = [ 3754 0 => $path, 3755 1 => $filename, 3756 2 => $name, 3757 3 => $encoding, 3758 4 => $type, 3759 5 => false, //isStringAttachment 3760 6 => $disposition, 3761 7 => $cid, 3762 ]; 3763 } catch (Exception $exc) { 3764 $this->setError($exc->getMessage()); 3765 $this->edebug($exc->getMessage()); 3766 if ($this->exceptions) { 3767 throw $exc; 3768 } 3769 3770 return false; 3771 } 3772 3773 return true; 3774 } 3775 3776 /** 3777 * Add an embedded stringified attachment. 3778 * This can include images, sounds, and just about any other document type. 3779 * If your filename doesn't contain an extension, be sure to set the $type to an appropriate MIME type. 3780 * 3781 * @param string $string The attachment binary data 3782 * @param string $cid Content ID of the attachment; Use this to reference 3783 * the content when using an embedded image in HTML 3784 * @param string $name A filename for the attachment. If this contains an extension, 3785 * PHPMailer will attempt to set a MIME type for the attachment. 3786 * For example 'file.jpg' would get an 'image/jpeg' MIME type. 3787 * @param string $encoding File encoding (see $Encoding), defaults to 'base64' 3788 * @param string $type MIME type - will be used in preference to any automatically derived type 3789 * @param string $disposition Disposition to use 3790 * 3791 * @throws Exception 3792 * 3793 * @return bool True on successfully adding an attachment 3794 */ 3795 public function addStringEmbeddedImage( 3796 $string, 3797 $cid, 3798 $name = '', 3799 $encoding = self::ENCODING_BASE64, 3800 $type = '', 3801 $disposition = 'inline' 3802 ) { 3803 try { 3804 //If a MIME type is not specified, try to work it out from the name 3805 if ('' === $type && !empty($name)) { 3806 $type = static::filenameToType($name); 3807 } 3808 3809 if (!$this->validateEncoding($encoding)) { 3810 throw new Exception($this->lang('encoding') . $encoding); 3811 } 3812 3813 //Append to $attachment array 3814 $this->attachment[] = [ 3815 0 => $string, 3816 1 => $name, 3817 2 => $name, 3818 3 => $encoding, 3819 4 => $type, 3820 5 => true, //isStringAttachment 3821 6 => $disposition, 3822 7 => $cid, 3823 ]; 3824 } catch (Exception $exc) { 3825 $this->setError($exc->getMessage()); 3826 $this->edebug($exc->getMessage()); 3827 if ($this->exceptions) { 3828 throw $exc; 3829 } 3830 3831 return false; 3832 } 3833 3834 return true; 3835 } 3836 3837 /** 3838 * Validate encodings. 3839 * 3840 * @param string $encoding 3841 * 3842 * @return bool 3843 */ 3844 protected function validateEncoding($encoding) 3845 { 3846 return in_array( 3847 $encoding, 3848 [ 3849 self::ENCODING_7BIT, 3850 self::ENCODING_QUOTED_PRINTABLE, 3851 self::ENCODING_BASE64, 3852 self::ENCODING_8BIT, 3853 self::ENCODING_BINARY, 3854 ], 3855 true 3856 ); 3857 } 3858 3859 /** 3860 * Check if an embedded attachment is present with this cid. 3861 * 3862 * @param string $cid 3863 * 3864 * @return bool 3865 */ 3866 protected function cidExists($cid) 3867 { 3868 foreach ($this->attachment as $attachment) { 3869 if ('inline' === $attachment[6] && $cid === $attachment[7]) { 3870 return true; 3871 } 3872 } 3873 3874 return false; 3875 } 3876 3877 /** 3878 * Check if an inline attachment is present. 3879 * 3880 * @return bool 3881 */ 3882 public function inlineImageExists() 3883 { 3884 foreach ($this->attachment as $attachment) { 3885 if ('inline' === $attachment[6]) { 3886 return true; 3887 } 3888 } 3889 3890 return false; 3891 } 3892 3893 /** 3894 * Check if an attachment (non-inline) is present. 3895 * 3896 * @return bool 3897 */ 3898 public function attachmentExists() 3899 { 3900 foreach ($this->attachment as $attachment) { 3901 if ('attachment' === $attachment[6]) { 3902 return true; 3903 } 3904 } 3905 3906 return false; 3907 } 3908 3909 /** 3910 * Check if this message has an alternative body set. 3911 * 3912 * @return bool 3913 */ 3914 public function alternativeExists() 3915 { 3916 return !empty($this->AltBody); 3917 } 3918 3919 /** 3920 * Clear queued addresses of given kind. 3921 * 3922 * @param string $kind 'to', 'cc', or 'bcc' 3923 */ 3924 public function clearQueuedAddresses($kind) 3925 { 3926 $this->RecipientsQueue = array_filter( 3927 $this->RecipientsQueue, 3928 static function ($params) use ($kind) { 3929 return $params[0] !== $kind; 3930 } 3931 ); 3932 } 3933 3934 /** 3935 * Clear all To recipients. 3936 */ 3937 public function clearAddresses() 3938 { 3939 foreach ($this->to as $to) { 3940 unset($this->all_recipients[strtolower($to[0])]); 3941 } 3942 $this->to = []; 3943 $this->clearQueuedAddresses('to'); 3944 } 3945 3946 /** 3947 * Clear all CC recipients. 3948 */ 3949 public function clearCCs() 3950 { 3951 foreach ($this->cc as $cc) { 3952 unset($this->all_recipients[strtolower($cc[0])]); 3953 } 3954 $this->cc = []; 3955 $this->clearQueuedAddresses('cc'); 3956 } 3957 3958 /** 3959 * Clear all BCC recipients. 3960 */ 3961 public function clearBCCs() 3962 { 3963 foreach ($this->bcc as $bcc) { 3964 unset($this->all_recipients[strtolower($bcc[0])]); 3965 } 3966 $this->bcc = []; 3967 $this->clearQueuedAddresses('bcc'); 3968 } 3969 3970 /** 3971 * Clear all ReplyTo recipients. 3972 */ 3973 public function clearReplyTos() 3974 { 3975 $this->ReplyTo = []; 3976 $this->ReplyToQueue = []; 3977 } 3978 3979 /** 3980 * Clear all recipient types. 3981 */ 3982 public function clearAllRecipients() 3983 { 3984 $this->to = []; 3985 $this->cc = []; 3986 $this->bcc = []; 3987 $this->all_recipients = []; 3988 $this->RecipientsQueue = []; 3989 } 3990 3991 /** 3992 * Clear all filesystem, string, and binary attachments. 3993 */ 3994 public function clearAttachments() 3995 { 3996 $this->attachment = []; 3997 } 3998 3999 /** 4000 * Clear all custom headers. 4001 */ 4002 public function clearCustomHeaders() 4003 { 4004 $this->CustomHeader = []; 4005 } 4006 4007 /** 4008 * Add an error message to the error container. 4009 * 4010 * @param string $msg 4011 */ 4012 protected function setError($msg) 4013 { 4014 ++$this->error_count; 4015 if ('smtp' === $this->Mailer && null !== $this->smtp) { 4016 $lasterror = $this->smtp->getError(); 4017 if (!empty($lasterror['error'])) { 4018 $msg .= $this->lang('smtp_error') . $lasterror['error']; 4019 if (!empty($lasterror['detail'])) { 4020 $msg .= ' ' . $this->lang('smtp_detail') . $lasterror['detail']; 4021 } 4022 if (!empty($lasterror['smtp_code'])) { 4023 $msg .= ' ' . $this->lang('smtp_code') . $lasterror['smtp_code']; 4024 } 4025 if (!empty($lasterror['smtp_code_ex'])) { 4026 $msg .= ' ' . $this->lang('smtp_code_ex') . $lasterror['smtp_code_ex']; 4027 } 4028 } 4029 } 4030 $this->ErrorInfo = $msg; 4031 } 4032 4033 /** 4034 * Return an RFC 822 formatted date. 4035 * 4036 * @return string 4037 */ 4038 public static function rfcDate() 4039 { 4040 //Set the time zone to whatever the default is to avoid 500 errors 4041 //Will default to UTC if it's not set properly in php.ini 4042 date_default_timezone_set(@date_default_timezone_get()); 4043 4044 return date('D, j M Y H:i:s O'); 4045 } 4046 4047 /** 4048 * Get the server hostname. 4049 * Returns 'localhost.localdomain' if unknown. 4050 * 4051 * @return string 4052 */ 4053 protected function serverHostname() 4054 { 4055 $result = ''; 4056 if (!empty($this->Hostname)) { 4057 $result = $this->Hostname; 4058 } elseif (isset($_SERVER) && array_key_exists('SERVER_NAME', $_SERVER)) { 4059 $result = $_SERVER['SERVER_NAME']; 4060 } elseif (function_exists('gethostname') && gethostname() !== false) { 4061 $result = gethostname(); 4062 } elseif (php_uname('n') !== false) { 4063 $result = php_uname('n'); 4064 } 4065 if (!static::isValidHost($result)) { 4066 return 'localhost.localdomain'; 4067 } 4068 4069 return $result; 4070 } 4071 4072 /** 4073 * Validate whether a string contains a valid value to use as a hostname or IP address. 4074 * IPv6 addresses must include [], e.g. `[::1]`, not just `::1`. 4075 * 4076 * @param string $host The host name or IP address to check 4077 * 4078 * @return bool 4079 */ 4080 public static function isValidHost($host) 4081 { 4082 //Simple syntax limits 4083 if ( 4084 empty($host) 4085 || !is_string($host) 4086 || strlen($host) > 256 4087 || !preg_match('/^([a-zA-Z\d.-]*|\[[a-fA-F\d:]+\])$/', $host) 4088 ) { 4089 return false; 4090 } 4091 //Looks like a bracketed IPv6 address 4092 if (strlen($host) > 2 && substr($host, 0, 1) === '[' && substr($host, -1, 1) === ']') { 4093 return filter_var(substr($host, 1, -1), FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== false; 4094 } 4095 //If removing all the dots results in a numeric string, it must be an IPv4 address. 4096 //Need to check this first because otherwise things like `999.0.0.0` are considered valid host names 4097 if (is_numeric(str_replace('.', '', $host))) { 4098 //Is it a valid IPv4 address? 4099 return filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false; 4100 } 4101 if (filter_var('http://' . $host, FILTER_VALIDATE_URL) !== false) { 4102 //Is it a syntactically valid hostname? 4103 return true; 4104 } 4105 4106 return false; 4107 } 4108 4109 /** 4110 * Get an error message in the current language. 4111 * 4112 * @param string $key 4113 * 4114 * @return string 4115 */ 4116 protected function lang($key) 4117 { 4118 if (count($this->language) < 1) { 4119 $this->setLanguage(); //Set the default language 4120 } 4121 4122 if (array_key_exists($key, $this->language)) { 4123 if ('smtp_connect_failed' === $key) { 4124 //Include a link to troubleshooting docs on SMTP connection failure. 4125 //This is by far the biggest cause of support questions 4126 //but it's usually not PHPMailer's fault. 4127 return $this->language[$key] . ' https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting'; 4128 } 4129 4130 return $this->language[$key]; 4131 } 4132 4133 //Return the key as a fallback 4134 return $key; 4135 } 4136 4137 /** 4138 * Build an error message starting with a generic one and adding details if possible. 4139 * 4140 * @param string $base_key 4141 * @return string 4142 */ 4143 private function getSmtpErrorMessage($base_key) 4144 { 4145 $message = $this->lang($base_key); 4146 $error = $this->smtp->getError(); 4147 if (!empty($error['error'])) { 4148 $message .= ' ' . $error['error']; 4149 if (!empty($error['detail'])) { 4150 $message .= ' ' . $error['detail']; 4151 } 4152 } 4153 4154 return $message; 4155 } 4156 4157 /** 4158 * Check if an error occurred. 4159 * 4160 * @return bool True if an error did occur 4161 */ 4162 public function isError() 4163 { 4164 return $this->error_count > 0; 4165 } 4166 4167 /** 4168 * Add a custom header. 4169 * $name value can be overloaded to contain 4170 * both header name and value (name:value). 4171 * 4172 * @param string $name Custom header name 4173 * @param string|null $value Header value 4174 * 4175 * @throws Exception 4176 */ 4177 public function addCustomHeader($name, $value = null) 4178 { 4179 if (null === $value && strpos($name, ':') !== false) { 4180 //Value passed in as name:value 4181 list($name, $value) = explode(':', $name, 2); 4182 } 4183 $name = trim($name); 4184 $value = (null === $value) ? '' : trim($value); 4185 //Ensure name is not empty, and that neither name nor value contain line breaks 4186 if (empty($name) || strpbrk($name . $value, "\r\n") !== false) { 4187 if ($this->exceptions) { 4188 throw new Exception($this->lang('invalid_header')); 4189 } 4190 4191 return false; 4192 } 4193 $this->CustomHeader[] = [$name, $value]; 4194 4195 return true; 4196 } 4197 4198 /** 4199 * Returns all custom headers. 4200 * 4201 * @return array 4202 */ 4203 public function getCustomHeaders() 4204 { 4205 return $this->CustomHeader; 4206 } 4207 4208 /** 4209 * Create a message body from an HTML string. 4210 * Automatically inlines images and creates a plain-text version by converting the HTML, 4211 * overwriting any existing values in Body and AltBody. 4212 * Do not source $message content from user input! 4213 * $basedir is prepended when handling relative URLs, e.g. <img src="/images/a.png"> and must not be empty 4214 * will look for an image file in $basedir/images/a.png and convert it to inline. 4215 * If you don't provide a $basedir, relative paths will be left untouched (and thus probably break in email) 4216 * Converts data-uri images into embedded attachments. 4217 * If you don't want to apply these transformations to your HTML, just set Body and AltBody directly. 4218 * 4219 * @param string $message HTML message string 4220 * @param string $basedir Absolute path to a base directory to prepend to relative paths to images 4221 * @param bool|callable $advanced Whether to use the internal HTML to text converter 4222 * or your own custom converter 4223 * @return string The transformed message body 4224 * 4225 * @throws Exception 4226 * 4227 * @see PHPMailer::html2text() 4228 */ 4229 public function msgHTML($message, $basedir = '', $advanced = false) 4230 { 4231 preg_match_all('/(?<!-)(src|background)=["\'](.*)["\']/Ui', $message, $images); 4232 if (array_key_exists(2, $images)) { 4233 if (strlen($basedir) > 1 && '/' !== substr($basedir, -1)) { 4234 //Ensure $basedir has a trailing / 4235 $basedir .= '/'; 4236 } 4237 foreach ($images[2] as $imgindex => $url) { 4238 //Convert data URIs into embedded images 4239 //e.g. "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" 4240 $match = []; 4241 if (preg_match('#^data:(image/(?:jpe?g|gif|png));?(base64)?,(.+)#', $url, $match)) { 4242 if (count($match) === 4 && static::ENCODING_BASE64 === $match[2]) { 4243 $data = base64_decode($match[3]); 4244 } elseif ('' === $match[2]) { 4245 $data = rawurldecode($match[3]); 4246 } else { 4247 //Not recognised so leave it alone 4248 continue; 4249 } 4250 //Hash the decoded data, not the URL, so that the same data-URI image used in multiple places 4251 //will only be embedded once, even if it used a different encoding 4252 $cid = substr(hash('sha256', $data), 0, 32) . '@phpmailer.0'; //RFC2392 S 2 4253 4254 if (!$this->cidExists($cid)) { 4255 $this->addStringEmbeddedImage( 4256 $data, 4257 $cid, 4258 'embed' . $imgindex, 4259 static::ENCODING_BASE64, 4260 $match[1] 4261 ); 4262 } 4263 $message = str_replace( 4264 $images[0][$imgindex], 4265 $images[1][$imgindex] . '="cid:' . $cid . '"', 4266 $message 4267 ); 4268 continue; 4269 } 4270 if ( 4271 //Only process relative URLs if a basedir is provided (i.e. no absolute local paths) 4272 !empty($basedir) 4273 //Ignore URLs containing parent dir traversal (..) 4274 && (strpos($url, '..') === false) 4275 //Do not change urls that are already inline images 4276 && 0 !== strpos($url, 'cid:') 4277 //Do not change absolute URLs, including anonymous protocol 4278 && !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url) 4279 ) { 4280 $filename = static::mb_pathinfo($url, PATHINFO_BASENAME); 4281 $directory = dirname($url); 4282 if ('.' === $directory) { 4283 $directory = ''; 4284 } 4285 //RFC2392 S 2 4286 $cid = substr(hash('sha256', $url), 0, 32) . '@phpmailer.0'; 4287 if (strlen($basedir) > 1 && '/' !== substr($basedir, -1)) { 4288 $basedir .= '/'; 4289 } 4290 if (strlen($directory) > 1 && '/' !== substr($directory, -1)) { 4291 $directory .= '/'; 4292 } 4293 if ( 4294 $this->addEmbeddedImage( 4295 $basedir . $directory . $filename, 4296 $cid, 4297 $filename, 4298 static::ENCODING_BASE64, 4299 static::_mime_types((string) static::mb_pathinfo($filename, PATHINFO_EXTENSION)) 4300 ) 4301 ) { 4302 $message = preg_replace( 4303 '/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui', 4304 $images[1][$imgindex] . '="cid:' . $cid . '"', 4305 $message 4306 ); 4307 } 4308 } 4309 } 4310 } 4311 $this->isHTML(); 4312 //Convert all message body line breaks to LE, makes quoted-printable encoding work much better 4313 $this->Body = static::normalizeBreaks($message); 4314 $this->AltBody = static::normalizeBreaks($this->html2text($message, $advanced)); 4315 if (!$this->alternativeExists()) { 4316 $this->AltBody = 'This is an HTML-only message. To view it, activate HTML in your email application.' 4317 . static::$LE; 4318 } 4319 4320 return $this->Body; 4321 } 4322 4323 /** 4324 * Convert an HTML string into plain text. 4325 * This is used by msgHTML(). 4326 * Note - older versions of this function used a bundled advanced converter 4327 * which was removed for license reasons in #232. 4328 * Example usage: 4329 * 4330 * ```php 4331 * //Use default conversion 4332 * $plain = $mail->html2text($html); 4333 * //Use your own custom converter 4334 * $plain = $mail->html2text($html, function($html) { 4335 * $converter = new MyHtml2text($html); 4336 * return $converter->get_text(); 4337 * }); 4338 * ``` 4339 * 4340 * @param string $html The HTML text to convert 4341 * @param bool|callable $advanced Any boolean value to use the internal converter, 4342 * or provide your own callable for custom conversion. 4343 * *Never* pass user-supplied data into this parameter 4344 * 4345 * @return string 4346 */ 4347 public function html2text($html, $advanced = false) 4348 { 4349 if (is_callable($advanced)) { 4350 return call_user_func($advanced, $html); 4351 } 4352 4353 return html_entity_decode( 4354 trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))), 4355 ENT_QUOTES, 4356 $this->CharSet 4357 ); 4358 } 4359 4360 /** 4361 * Get the MIME type for a file extension. 4362 * 4363 * @param string $ext File extension 4364 * 4365 * @return string MIME type of file 4366 */ 4367 public static function _mime_types($ext = '') 4368 { 4369 $mimes = [ 4370 'xl' => 'application/excel', 4371 'js' => 'application/javascript', 4372 'hqx' => 'application/mac-binhex40', 4373 'cpt' => 'application/mac-compactpro', 4374 'bin' => 'application/macbinary', 4375 'doc' => 'application/msword', 4376 'word' => 'application/msword', 4377 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 4378 'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template', 4379 'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template', 4380 'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow', 4381 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation', 4382 'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide', 4383 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 4384 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template', 4385 'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12', 4386 'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12', 4387 'class' => 'application/octet-stream', 4388 'dll' => 'application/octet-stream', 4389 'dms' => 'application/octet-stream', 4390 'exe' => 'application/octet-stream', 4391 'lha' => 'application/octet-stream', 4392 'lzh' => 'application/octet-stream', 4393 'psd' => 'application/octet-stream', 4394 'sea' => 'application/octet-stream', 4395 'so' => 'application/octet-stream', 4396 'oda' => 'application/oda', 4397 'pdf' => 'application/pdf', 4398 'ai' => 'application/postscript', 4399 'eps' => 'application/postscript', 4400 'ps' => 'application/postscript', 4401 'smi' => 'application/smil', 4402 'smil' => 'application/smil', 4403 'mif' => 'application/vnd.mif', 4404 'xls' => 'application/vnd.ms-excel', 4405 'ppt' => 'application/vnd.ms-powerpoint', 4406 'wbxml' => 'application/vnd.wap.wbxml', 4407 'wmlc' => 'application/vnd.wap.wmlc', 4408 'dcr' => 'application/x-director', 4409 'dir' => 'application/x-director', 4410 'dxr' => 'application/x-director', 4411 'dvi' => 'application/x-dvi', 4412 'gtar' => 'application/x-gtar', 4413 'php3' => 'application/x-httpd-php', 4414 'php4' => 'application/x-httpd-php', 4415 'php' => 'application/x-httpd-php', 4416 'phtml' => 'application/x-httpd-php', 4417 'phps' => 'application/x-httpd-php-source', 4418 'swf' => 'application/x-shockwave-flash', 4419 'sit' => 'application/x-stuffit', 4420 'tar' => 'application/x-tar', 4421 'tgz' => 'application/x-tar', 4422 'xht' => 'application/xhtml+xml', 4423 'xhtml' => 'application/xhtml+xml', 4424 'zip' => 'application/zip', 4425 'mid' => 'audio/midi', 4426 'midi' => 'audio/midi', 4427 'mp2' => 'audio/mpeg', 4428 'mp3' => 'audio/mpeg', 4429 'm4a' => 'audio/mp4', 4430 'mpga' => 'audio/mpeg', 4431 'aif' => 'audio/x-aiff', 4432 'aifc' => 'audio/x-aiff', 4433 'aiff' => 'audio/x-aiff', 4434 'ram' => 'audio/x-pn-realaudio', 4435 'rm' => 'audio/x-pn-realaudio', 4436 'rpm' => 'audio/x-pn-realaudio-plugin', 4437 'ra' => 'audio/x-realaudio', 4438 'wav' => 'audio/x-wav', 4439 'mka' => 'audio/x-matroska', 4440 'bmp' => 'image/bmp', 4441 'gif' => 'image/gif', 4442 'jpeg' => 'image/jpeg', 4443 'jpe' => 'image/jpeg', 4444 'jpg' => 'image/jpeg', 4445 'png' => 'image/png', 4446 'tiff' => 'image/tiff', 4447 'tif' => 'image/tiff', 4448 'webp' => 'image/webp', 4449 'avif' => 'image/avif', 4450 'heif' => 'image/heif', 4451 'heifs' => 'image/heif-sequence', 4452 'heic' => 'image/heic', 4453 'heics' => 'image/heic-sequence', 4454 'eml' => 'message/rfc822', 4455 'css' => 'text/css', 4456 'html' => 'text/html', 4457 'htm' => 'text/html', 4458 'shtml' => 'text/html', 4459 'log' => 'text/plain', 4460 'text' => 'text/plain', 4461 'txt' => 'text/plain', 4462 'rtx' => 'text/richtext', 4463 'rtf' => 'text/rtf', 4464 'vcf' => 'text/vcard', 4465 'vcard' => 'text/vcard', 4466 'ics' => 'text/calendar', 4467 'xml' => 'text/xml', 4468 'xsl' => 'text/xml', 4469 'wmv' => 'video/x-ms-wmv', 4470 'mpeg' => 'video/mpeg', 4471 'mpe' => 'video/mpeg', 4472 'mpg' => 'video/mpeg', 4473 'mp4' => 'video/mp4', 4474 'm4v' => 'video/mp4', 4475 'mov' => 'video/quicktime', 4476 'qt' => 'video/quicktime', 4477 'rv' => 'video/vnd.rn-realvideo', 4478 'avi' => 'video/x-msvideo', 4479 'movie' => 'video/x-sgi-movie', 4480 'webm' => 'video/webm', 4481 'mkv' => 'video/x-matroska', 4482 ]; 4483 $ext = strtolower($ext); 4484 if (array_key_exists($ext, $mimes)) { 4485 return $mimes[$ext]; 4486 } 4487 4488 return 'application/octet-stream'; 4489 } 4490 4491 /** 4492 * Map a file name to a MIME type. 4493 * Defaults to 'application/octet-stream', i.e.. arbitrary binary data. 4494 * 4495 * @param string $filename A file name or full path, does not need to exist as a file 4496 * 4497 * @return string 4498 */ 4499 public static function filenameToType($filename) 4500 { 4501 //In case the path is a URL, strip any query string before getting extension 4502 $qpos = strpos($filename, '?'); 4503 if (false !== $qpos) { 4504 $filename = substr($filename, 0, $qpos); 4505 } 4506 $ext = static::mb_pathinfo($filename, PATHINFO_EXTENSION); 4507 4508 return static::_mime_types($ext); 4509 } 4510 4511 /** 4512 * Multi-byte-safe pathinfo replacement. 4513 * Drop-in replacement for pathinfo(), but multibyte- and cross-platform-safe. 4514 * 4515 * @see http://www.php.net/manual/en/function.pathinfo.php#107461 4516 * 4517 * @param string $path A filename or path, does not need to exist as a file 4518 * @param int|string $options Either a PATHINFO_* constant, 4519 * or a string name to return only the specified piece 4520 * 4521 * @return string|array 4522 */ 4523 public static function mb_pathinfo($path, $options = null) 4524 { 4525 $ret = ['dirname' => '', 'basename' => '', 'extension' => '', 'filename' => '']; 4526 $pathinfo = []; 4527 if (preg_match('#^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^.\\\\/]+?)|))[\\\\/.]*$#m', $path, $pathinfo)) { 4528 if (array_key_exists(1, $pathinfo)) { 4529 $ret['dirname'] = $pathinfo[1]; 4530 } 4531 if (array_key_exists(2, $pathinfo)) { 4532 $ret['basename'] = $pathinfo[2]; 4533 } 4534 if (array_key_exists(5, $pathinfo)) { 4535 $ret['extension'] = $pathinfo[5]; 4536 } 4537 if (array_key_exists(3, $pathinfo)) { 4538 $ret['filename'] = $pathinfo[3]; 4539 } 4540 } 4541 switch ($options) { 4542 case PATHINFO_DIRNAME: 4543 case 'dirname': 4544 return $ret['dirname']; 4545 case PATHINFO_BASENAME: 4546 case 'basename': 4547 return $ret['basename']; 4548 case PATHINFO_EXTENSION: 4549 case 'extension': 4550 return $ret['extension']; 4551 case PATHINFO_FILENAME: 4552 case 'filename': 4553 return $ret['filename']; 4554 default: 4555 return $ret; 4556 } 4557 } 4558 4559 /** 4560 * Set or reset instance properties. 4561 * You should avoid this function - it's more verbose, less efficient, more error-prone and 4562 * harder to debug than setting properties directly. 4563 * Usage Example: 4564 * `$mail->set('SMTPSecure', static::ENCRYPTION_STARTTLS);` 4565 * is the same as: 4566 * `$mail->SMTPSecure = static::ENCRYPTION_STARTTLS;`. 4567 * 4568 * @param string $name The property name to set 4569 * @param mixed $value The value to set the property to 4570 * 4571 * @return bool 4572 */ 4573 public function set($name, $value = '') 4574 { 4575 if (property_exists($this, $name)) { 4576 $this->$name = $value; 4577 4578 return true; 4579 } 4580 $this->setError($this->lang('variable_set') . $name); 4581 4582 return false; 4583 } 4584 4585 /** 4586 * Strip newlines to prevent header injection. 4587 * 4588 * @param string $str 4589 * 4590 * @return string 4591 */ 4592 public function secureHeader($str) 4593 { 4594 return trim(str_replace(["\r", "\n"], '', $str)); 4595 } 4596 4597 /** 4598 * Normalize line breaks in a string. 4599 * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format. 4600 * Defaults to CRLF (for message bodies) and preserves consecutive breaks. 4601 * 4602 * @param string $text 4603 * @param string $breaktype What kind of line break to use; defaults to static::$LE 4604 * 4605 * @return string 4606 */ 4607 public static function normalizeBreaks($text, $breaktype = null) 4608 { 4609 if (null === $breaktype) { 4610 $breaktype = static::$LE; 4611 } 4612 //Normalise to \n 4613 $text = str_replace([self::CRLF, "\r"], "\n", $text); 4614 //Now convert LE as needed 4615 if ("\n" !== $breaktype) { 4616 $text = str_replace("\n", $breaktype, $text); 4617 } 4618 4619 return $text; 4620 } 4621 4622 /** 4623 * Remove trailing breaks from a string. 4624 * 4625 * @param string $text 4626 * 4627 * @return string The text to remove breaks from 4628 */ 4629 public static function stripTrailingWSP($text) 4630 { 4631 return rtrim($text, " \r\n\t"); 4632 } 4633 4634 /** 4635 * Return the current line break format string. 4636 * 4637 * @return string 4638 */ 4639 public static function getLE() 4640 { 4641 return static::$LE; 4642 } 4643 4644 /** 4645 * Set the line break format string, e.g. "\r\n". 4646 * 4647 * @param string $le 4648 */ 4649 protected static function setLE($le) 4650 { 4651 static::$LE = $le; 4652 } 4653 4654 /** 4655 * Set the public and private key files and password for S/MIME signing. 4656 * 4657 * @param string $cert_filename 4658 * @param string $key_filename 4659 * @param string $key_pass Password for private key 4660 * @param string $extracerts_filename Optional path to chain certificate 4661 */ 4662 public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '') 4663 { 4664 $this->sign_cert_file = $cert_filename; 4665 $this->sign_key_file = $key_filename; 4666 $this->sign_key_pass = $key_pass; 4667 $this->sign_extracerts_file = $extracerts_filename; 4668 } 4669 4670 /** 4671 * Quoted-Printable-encode a DKIM header. 4672 * 4673 * @param string $txt 4674 * 4675 * @return string 4676 */ 4677 public function DKIM_QP($txt) 4678 { 4679 $line = ''; 4680 $len = strlen($txt); 4681 for ($i = 0; $i < $len; ++$i) { 4682 $ord = ord($txt[$i]); 4683 if (((0x21 <= $ord) && ($ord <= 0x3A)) || $ord === 0x3C || ((0x3E <= $ord) && ($ord <= 0x7E))) { 4684 $line .= $txt[$i]; 4685 } else { 4686 $line .= '=' . sprintf('%02X', $ord); 4687 } 4688 } 4689 4690 return $line; 4691 } 4692 4693 /** 4694 * Generate a DKIM signature. 4695 * 4696 * @param string $signHeader 4697 * 4698 * @throws Exception 4699 * 4700 * @return string The DKIM signature value 4701 */ 4702 public function DKIM_Sign($signHeader) 4703 { 4704 if (!defined('PKCS7_TEXT')) { 4705 if ($this->exceptions) { 4706 throw new Exception($this->lang('extension_missing') . 'openssl'); 4707 } 4708 4709 return ''; 4710 } 4711 $privKeyStr = !empty($this->DKIM_private_string) ? 4712 $this->DKIM_private_string : 4713 file_get_contents($this->DKIM_private); 4714 if ('' !== $this->DKIM_passphrase) { 4715 $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase); 4716 } else { 4717 $privKey = openssl_pkey_get_private($privKeyStr); 4718 } 4719 if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) { 4720 if (\PHP_MAJOR_VERSION < 8) { 4721 openssl_pkey_free($privKey); 4722 } 4723 4724 return base64_encode($signature); 4725 } 4726 if (\PHP_MAJOR_VERSION < 8) { 4727 openssl_pkey_free($privKey); 4728 } 4729 4730 return ''; 4731 } 4732 4733 /** 4734 * Generate a DKIM canonicalization header. 4735 * Uses the 'relaxed' algorithm from RFC6376 section 3.4.2. 4736 * Canonicalized headers should *always* use CRLF, regardless of mailer setting. 4737 * 4738 * @see https://tools.ietf.org/html/rfc6376#section-3.4.2 4739 * 4740 * @param string $signHeader Header 4741 * 4742 * @return string 4743 */ 4744 public function DKIM_HeaderC($signHeader) 4745 { 4746 //Normalize breaks to CRLF (regardless of the mailer) 4747 $signHeader = static::normalizeBreaks($signHeader, self::CRLF); 4748 //Unfold header lines 4749 //Note PCRE \s is too broad a definition of whitespace; RFC5322 defines it as `[ \t]` 4750 //@see https://tools.ietf.org/html/rfc5322#section-2.2 4751 //That means this may break if you do something daft like put vertical tabs in your headers. 4752 $signHeader = preg_replace('/\r\n[ \t]+/', ' ', $signHeader); 4753 //Break headers out into an array 4754 $lines = explode(self::CRLF, $signHeader); 4755 foreach ($lines as $key => $line) { 4756 //If the header is missing a :, skip it as it's invalid 4757 //This is likely to happen because the explode() above will also split 4758 //on the trailing LE, leaving an empty line 4759 if (strpos($line, ':') === false) { 4760 continue; 4761 } 4762 list($heading, $value) = explode(':', $line, 2); 4763 //Lower-case header name 4764 $heading = strtolower($heading); 4765 //Collapse white space within the value, also convert WSP to space 4766 $value = preg_replace('/[ \t]+/', ' ', $value); 4767 //RFC6376 is slightly unclear here - it says to delete space at the *end* of each value 4768 //But then says to delete space before and after the colon. 4769 //Net result is the same as trimming both ends of the value. 4770 //By elimination, the same applies to the field name 4771 $lines[$key] = trim($heading, " \t") . ':' . trim($value, " \t"); 4772 } 4773 4774 return implode(self::CRLF, $lines); 4775 } 4776 4777 /** 4778 * Generate a DKIM canonicalization body. 4779 * Uses the 'simple' algorithm from RFC6376 section 3.4.3. 4780 * Canonicalized bodies should *always* use CRLF, regardless of mailer setting. 4781 * 4782 * @see https://tools.ietf.org/html/rfc6376#section-3.4.3 4783 * 4784 * @param string $body Message Body 4785 * 4786 * @return string 4787 */ 4788 public function DKIM_BodyC($body) 4789 { 4790 if (empty($body)) { 4791 return self::CRLF; 4792 } 4793 //Normalize line endings to CRLF 4794 $body = static::normalizeBreaks($body, self::CRLF); 4795 4796 //Reduce multiple trailing line breaks to a single one 4797 return static::stripTrailingWSP($body) . self::CRLF; 4798 } 4799 4800 /** 4801 * Create the DKIM header and body in a new message header. 4802 * 4803 * @param string $headers_line Header lines 4804 * @param string $subject Subject 4805 * @param string $body Body 4806 * 4807 * @throws Exception 4808 * 4809 * @return string 4810 */ 4811 public function DKIM_Add($headers_line, $subject, $body) 4812 { 4813 $DKIMsignatureType = 'rsa-sha256'; //Signature & hash algorithms 4814 $DKIMcanonicalization = 'relaxed/simple'; //Canonicalization methods of header & body 4815 $DKIMquery = 'dns/txt'; //Query method 4816 $DKIMtime = time(); 4817 //Always sign these headers without being asked 4818 //Recommended list from https://tools.ietf.org/html/rfc6376#section-5.4.1 4819 $autoSignHeaders = [ 4820 'from', 4821 'to', 4822 'cc', 4823 'date', 4824 'subject', 4825 'reply-to', 4826 'message-id', 4827 'content-type', 4828 'mime-version', 4829 'x-mailer', 4830 ]; 4831 if (stripos($headers_line, 'Subject') === false) { 4832 $headers_line .= 'Subject: ' . $subject . static::$LE; 4833 } 4834 $headerLines = explode(static::$LE, $headers_line); 4835 $currentHeaderLabel = ''; 4836 $currentHeaderValue = ''; 4837 $parsedHeaders = []; 4838 $headerLineIndex = 0; 4839 $headerLineCount = count($headerLines); 4840 foreach ($headerLines as $headerLine) { 4841 $matches = []; 4842 if (preg_match('/^([^ \t]*?)(?::[ \t]*)(.*)$/', $headerLine, $matches)) { 4843 if ($currentHeaderLabel !== '') { 4844 //We were previously in another header; This is the start of a new header, so save the previous one 4845 $parsedHeaders[] = ['label' => $currentHeaderLabel, 'value' => $currentHeaderValue]; 4846 } 4847 $currentHeaderLabel = $matches[1]; 4848 $currentHeaderValue = $matches[2]; 4849 } elseif (preg_match('/^[ \t]+(.*)$/', $headerLine, $matches)) { 4850 //This is a folded continuation of the current header, so unfold it 4851 $currentHeaderValue .= ' ' . $matches[1]; 4852 } 4853 ++$headerLineIndex; 4854 if ($headerLineIndex >= $headerLineCount) { 4855 //This was the last line, so finish off this header 4856 $parsedHeaders[] = ['label' => $currentHeaderLabel, 'value' => $currentHeaderValue]; 4857 } 4858 } 4859 $copiedHeaders = []; 4860 $headersToSignKeys = []; 4861 $headersToSign = []; 4862 foreach ($parsedHeaders as $header) { 4863 //Is this header one that must be included in the DKIM signature? 4864 if (in_array(strtolower($header['label']), $autoSignHeaders, true)) { 4865 $headersToSignKeys[] = $header['label']; 4866 $headersToSign[] = $header['label'] . ': ' . $header['value']; 4867 if ($this->DKIM_copyHeaderFields) { 4868 $copiedHeaders[] = $header['label'] . ':' . //Note no space after this, as per RFC 4869 str_replace('|', '=7C', $this->DKIM_QP($header['value'])); 4870 } 4871 continue; 4872 } 4873 //Is this an extra custom header we've been asked to sign? 4874 if (in_array($header['label'], $this->DKIM_extraHeaders, true)) { 4875 //Find its value in custom headers 4876 foreach ($this->CustomHeader as $customHeader) { 4877 if ($customHeader[0] === $header['label']) { 4878 $headersToSignKeys[] = $header['label']; 4879 $headersToSign[] = $header['label'] . ': ' . $header['value']; 4880 if ($this->DKIM_copyHeaderFields) { 4881 $copiedHeaders[] = $header['label'] . ':' . //Note no space after this, as per RFC 4882 str_replace('|', '=7C', $this->DKIM_QP($header['value'])); 4883 } 4884 //Skip straight to the next header 4885 continue 2; 4886 } 4887 } 4888 } 4889 } 4890 $copiedHeaderFields = ''; 4891 if ($this->DKIM_copyHeaderFields && count($copiedHeaders) > 0) { 4892 //Assemble a DKIM 'z' tag 4893 $copiedHeaderFields = ' z='; 4894 $first = true; 4895 foreach ($copiedHeaders as $copiedHeader) { 4896 if (!$first) { 4897 $copiedHeaderFields .= static::$LE . ' |'; 4898 } 4899 //Fold long values 4900 if (strlen($copiedHeader) > self::STD_LINE_LENGTH - 3) { 4901 $copiedHeaderFields .= substr( 4902 chunk_split($copiedHeader, self::STD_LINE_LENGTH - 3, static::$LE . self::FWS), 4903 0, 4904 -strlen(static::$LE . self::FWS) 4905 ); 4906 } else { 4907 $copiedHeaderFields .= $copiedHeader; 4908 } 4909 $first = false; 4910 } 4911 $copiedHeaderFields .= ';' . static::$LE; 4912 } 4913 $headerKeys = ' h=' . implode(':', $headersToSignKeys) . ';' . static::$LE; 4914 $headerValues = implode(static::$LE, $headersToSign); 4915 $body = $this->DKIM_BodyC($body); 4916 //Base64 of packed binary SHA-256 hash of body 4917 $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body))); 4918 $ident = ''; 4919 if ('' !== $this->DKIM_identity) { 4920 $ident = ' i=' . $this->DKIM_identity . ';' . static::$LE; 4921 } 4922 //The DKIM-Signature header is included in the signature *except for* the value of the `b` tag 4923 //which is appended after calculating the signature 4924 //https://tools.ietf.org/html/rfc6376#section-3.5 4925 $dkimSignatureHeader = 'DKIM-Signature: v=1;' . 4926 ' d=' . $this->DKIM_domain . ';' . 4927 ' s=' . $this->DKIM_selector . ';' . static::$LE . 4928 ' a=' . $DKIMsignatureType . ';' . 4929 ' q=' . $DKIMquery . ';' . 4930 ' t=' . $DKIMtime . ';' . 4931 ' c=' . $DKIMcanonicalization . ';' . static::$LE . 4932 $headerKeys . 4933 $ident . 4934 $copiedHeaderFields . 4935 ' bh=' . $DKIMb64 . ';' . static::$LE . 4936 ' b='; 4937 //Canonicalize the set of headers 4938 $canonicalizedHeaders = $this->DKIM_HeaderC( 4939 $headerValues . static::$LE . $dkimSignatureHeader 4940 ); 4941 $signature = $this->DKIM_Sign($canonicalizedHeaders); 4942 $signature = trim(chunk_split($signature, self::STD_LINE_LENGTH - 3, static::$LE . self::FWS)); 4943 4944 return static::normalizeBreaks($dkimSignatureHeader . $signature); 4945 } 4946 4947 /** 4948 * Detect if a string contains a line longer than the maximum line length 4949 * allowed by RFC 2822 section 2.1.1. 4950 * 4951 * @param string $str 4952 * 4953 * @return bool 4954 */ 4955 public static function hasLineLongerThanMax($str) 4956 { 4957 return (bool) preg_match('/^(.{' . (self::MAX_LINE_LENGTH + strlen(static::$LE)) . ',})/m', $str); 4958 } 4959 4960 /** 4961 * If a string contains any "special" characters, double-quote the name, 4962 * and escape any double quotes with a backslash. 4963 * 4964 * @param string $str 4965 * 4966 * @return string 4967 * 4968 * @see RFC822 3.4.1 4969 */ 4970 public static function quotedString($str) 4971 { 4972 if (preg_match('/[ ()<>@,;:"\/\[\]?=]/', $str)) { 4973 //If the string contains any of these chars, it must be double-quoted 4974 //and any double quotes must be escaped with a backslash 4975 return '"' . str_replace('"', '\\"', $str) . '"'; 4976 } 4977 4978 //Return the string untouched, it doesn't need quoting 4979 return $str; 4980 } 4981 4982 /** 4983 * Allows for public read access to 'to' property. 4984 * Before the send() call, queued addresses (i.e. with IDN) are not yet included. 4985 * 4986 * @return array 4987 */ 4988 public function getToAddresses() 4989 { 4990 return $this->to; 4991 } 4992 4993 /** 4994 * Allows for public read access to 'cc' property. 4995 * Before the send() call, queued addresses (i.e. with IDN) are not yet included. 4996 * 4997 * @return array 4998 */ 4999 public function getCcAddresses() 5000 { 5001 return $this->cc; 5002 } 5003 5004 /** 5005 * Allows for public read access to 'bcc' property. 5006 * Before the send() call, queued addresses (i.e. with IDN) are not yet included. 5007 * 5008 * @return array 5009 */ 5010 public function getBccAddresses() 5011 { 5012 return $this->bcc; 5013 } 5014 5015 /** 5016 * Allows for public read access to 'ReplyTo' property. 5017 * Before the send() call, queued addresses (i.e. with IDN) are not yet included. 5018 * 5019 * @return array 5020 */ 5021 public function getReplyToAddresses() 5022 { 5023 return $this->ReplyTo; 5024 } 5025 5026 /** 5027 * Allows for public read access to 'all_recipients' property. 5028 * Before the send() call, queued addresses (i.e. with IDN) are not yet included. 5029 * 5030 * @return array 5031 */ 5032 public function getAllRecipientAddresses() 5033 { 5034 return $this->all_recipients; 5035 } 5036 5037 /** 5038 * Perform a callback. 5039 * 5040 * @param bool $isSent 5041 * @param array $to 5042 * @param array $cc 5043 * @param array $bcc 5044 * @param string $subject 5045 * @param string $body 5046 * @param string $from 5047 * @param array $extra 5048 */ 5049 protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from, $extra) 5050 { 5051 if (!empty($this->action_function) && is_callable($this->action_function)) { 5052 call_user_func($this->action_function, $isSent, $to, $cc, $bcc, $subject, $body, $from, $extra); 5053 } 5054 } 5055 5056 /** 5057 * Get the OAuthTokenProvider instance. 5058 * 5059 * @return OAuthTokenProvider 5060 */ 5061 public function getOAuth() 5062 { 5063 return $this->oauth; 5064 } 5065 5066 /** 5067 * Set an OAuthTokenProvider instance. 5068 */ 5069 public function setOAuth(OAuthTokenProvider $oauth) 5070 { 5071 $this->oauth = $oauth; 5072 } 5073 }
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