\n"; + } +} diff --git a/src/wp-includes/PHPMailer/PHPMailer.php b/src/wp-includes/PHPMailer/PHPMailer.php new file mode 100644 index 0000000000..ed14d7c7a2 --- /dev/null +++ b/src/wp-includes/PHPMailer/PHPMailer.php @@ -0,0 +1,4834 @@ + + * @author Jim Jagielski (jimjag)
`, appropriate for browser output + * * `error_log` Output to error log as configured in php.ini + * By default PHPMailer will use `echo` if run from a `cli` or `cli-server` SAPI, `html` otherwise. + * Alternatively, you can provide a callable expecting two params: a message string and the debug level: + * + * ```php + * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";}; + * ``` + * + * Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug` + * level output is used: + * + * ```php + * $mail->Debugoutput = new myPsr3Logger; + * ``` + * + * @see SMTP::$Debugoutput + * + * @var string|callable|\Psr\Log\LoggerInterface + */ + public $Debugoutput = 'echo'; + + /** + * Whether to keep SMTP connection open after each message. + * If this is set to true then to close the connection + * requires an explicit call to smtpClose(). + * + * @var bool + */ + public $SMTPKeepAlive = false; + + /** + * Whether to split multiple to addresses into multiple messages + * or send them all in one message. + * Only supported in `mail` and `sendmail` transports, not in SMTP. + * + * @var bool + */ + public $SingleTo = false; + + /** + * Storage for addresses when SingleTo is enabled. + * + * @var array + */ + protected $SingleToArray = []; + + /** + * Whether to generate VERP addresses on send. + * Only applicable when sending via SMTP. + * + * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path + * @see http://www.postfix.org/VERP_README.html Postfix VERP info + * + * @var bool + */ + public $do_verp = false; + + /** + * Whether to allow sending messages with an empty body. + * + * @var bool + */ + public $AllowEmpty = false; + + /** + * DKIM selector. + * + * @var string + */ + public $DKIM_selector = ''; + + /** + * DKIM Identity. + * Usually the email address used as the source of the email. + * + * @var string + */ + public $DKIM_identity = ''; + + /** + * DKIM passphrase. + * Used if your key is encrypted. + * + * @var string + */ + public $DKIM_passphrase = ''; + + /** + * DKIM signing domain name. + * + * @example 'example.com' + * + * @var string + */ + public $DKIM_domain = ''; + + /** + * DKIM Copy header field values for diagnostic use. + * + * @var bool + */ + public $DKIM_copyHeaderFields = true; + + /** + * DKIM Extra signing headers. + * + * @example ['List-Unsubscribe', 'List-Help'] + * + * @var array + */ + public $DKIM_extraHeaders = []; + + /** + * DKIM private key file path. + * + * @var string + */ + public $DKIM_private = ''; + + /** + * DKIM private key string. + * + * If set, takes precedence over `$DKIM_private`. + * + * @var string + */ + public $DKIM_private_string = ''; + + /** + * Callback Action function name. + * + * The function that handles the result of the send email action. + * It is called out by send() for each email sent. + * + * Value can be any php callable: http://www.php.net/is_callable + * + * Parameters: + * bool $result result of the send action + * array $to email addresses of the recipients + * array $cc cc email addresses + * array $bcc bcc email addresses + * string $subject the subject + * string $body the email body + * string $from email address of sender + * string $extra extra information of possible use + * "smtp_transaction_id' => last smtp transaction id + * + * @var string + */ + public $action_function = ''; + + /** + * What to put in the X-Mailer header. + * Options: An empty string for PHPMailer default, whitespace/null for none, or a string to use. + * + * @var string|null + */ + public $XMailer = ''; + + /** + * Which validator to use by default when validating email addresses. + * May be a callable to inject your own validator, but there are several built-in validators. + * The default validator uses PHP's FILTER_VALIDATE_EMAIL filter_var option. + * + * @see PHPMailer::validateAddress() + * + * @var string|callable + */ + public static $validator = 'php'; + + /** + * An instance of the SMTP sender class. + * + * @var SMTP + */ + protected $smtp; + + /** + * The array of 'to' names and addresses. + * + * @var array + */ + protected $to = []; + + /** + * The array of 'cc' names and addresses. + * + * @var array + */ + protected $cc = []; + + /** + * The array of 'bcc' names and addresses. + * + * @var array + */ + protected $bcc = []; + + /** + * The array of reply-to names and addresses. + * + * @var array + */ + protected $ReplyTo = []; + + /** + * An array of all kinds of addresses. + * Includes all of $to, $cc, $bcc. + * + * @see PHPMailer::$to + * @see PHPMailer::$cc + * @see PHPMailer::$bcc + * + * @var array + */ + protected $all_recipients = []; + + /** + * An array of names and addresses queued for validation. + * In send(), valid and non duplicate entries are moved to $all_recipients + * and one of $to, $cc, or $bcc. + * This array is used only for addresses with IDN. + * + * @see PHPMailer::$to + * @see PHPMailer::$cc + * @see PHPMailer::$bcc + * @see PHPMailer::$all_recipients + * + * @var array + */ + protected $RecipientsQueue = []; + + /** + * An array of reply-to names and addresses queued for validation. + * In send(), valid and non duplicate entries are moved to $ReplyTo. + * This array is used only for addresses with IDN. + * + * @see PHPMailer::$ReplyTo + * + * @var array + */ + protected $ReplyToQueue = []; + + /** + * The array of attachments. + * + * @var array + */ + protected $attachment = []; + + /** + * The array of custom headers. + * + * @var array + */ + protected $CustomHeader = []; + + /** + * The most recent Message-ID (including angular brackets). + * + * @var string + */ + protected $lastMessageID = ''; + + /** + * The message's MIME type. + * + * @var string + */ + protected $message_type = ''; + + /** + * The array of MIME boundary strings. + * + * @var array + */ + protected $boundary = []; + + /** + * The array of available languages. + * + * @var array + */ + protected $language = []; + + /** + * The number of errors encountered. + * + * @var int + */ + protected $error_count = 0; + + /** + * The S/MIME certificate file path. + * + * @var string + */ + protected $sign_cert_file = ''; + + /** + * The S/MIME key file path. + * + * @var string + */ + protected $sign_key_file = ''; + + /** + * The optional S/MIME extra certificates ("CA Chain") file path. + * + * @var string + */ + protected $sign_extracerts_file = ''; + + /** + * The S/MIME password for the key. + * Used only if the key is encrypted. + * + * @var string + */ + protected $sign_key_pass = ''; + + /** + * Whether to throw exceptions for errors. + * + * @var bool + */ + protected $exceptions = false; + + /** + * Unique ID used for message ID and boundaries. + * + * @var string + */ + protected $uniqueid = ''; + + /** + * The PHPMailer Version number. + * + * @var string + */ + const VERSION = '6.1.6'; + + /** + * Error severity: message only, continue processing. + * + * @var int + */ + const STOP_MESSAGE = 0; + + /** + * Error severity: message, likely ok to continue processing. + * + * @var int + */ + const STOP_CONTINUE = 1; + + /** + * Error severity: message, plus full stop, critical error reached. + * + * @var int + */ + const STOP_CRITICAL = 2; + + /** + * The SMTP standard CRLF line break. + * If you want to change line break format, change static::$LE, not this. + */ + const CRLF = "\r\n"; + + /** + * "Folding White Space" a white space string used for line folding. + */ + const FWS = ' '; + + /** + * SMTP RFC standard line ending; Carriage Return, Line Feed. + * + * @var string + */ + protected static $LE = self::CRLF; + + /** + * The maximum line length supported by mail(). + * + * Background: mail() will sometimes corrupt messages + * with headers headers longer than 65 chars, see #818. + * + * @var int + */ + const MAIL_MAX_LINE_LENGTH = 63; + + /** + * The maximum line length allowed by RFC 2822 section 2.1.1. + * + * @var int + */ + const MAX_LINE_LENGTH = 998; + + /** + * The lower maximum line length allowed by RFC 2822 section 2.1.1. + * This length does NOT include the line break + * 76 means that lines will be 77 or 78 chars depending on whether + * the line break format is LF or CRLF; both are valid. + * + * @var int + */ + const STD_LINE_LENGTH = 76; + + /** + * Constructor. + * + * @param bool $exceptions Should we throw external exceptions? + */ + public function __construct($exceptions = null) + { + if (null !== $exceptions) { + $this->exceptions = (bool) $exceptions; + } + //Pick an appropriate debug output format automatically + $this->Debugoutput = (strpos(PHP_SAPI, 'cli') !== false ? 'echo' : 'html'); + } + + /** + * Destructor. + */ + public function __destruct() + { + //Close any open SMTP connection nicely + $this->smtpClose(); + } + + /** + * Call mail() in a safe_mode-aware fashion. + * Also, unless sendmail_path points to sendmail (or something that + * claims to be sendmail), don't pass params (not a perfect fix, + * but it will do). + * + * @param string $to To + * @param string $subject Subject + * @param string $body Message Body + * @param string $header Additional Header(s) + * @param string|null $params Params + * + * @return bool + */ + private function mailPassthru($to, $subject, $body, $header, $params) + { + //Check overloading of mail function to avoid double-encoding + if (ini_get('mbstring.func_overload') & 1) { + $subject = $this->secureHeader($subject); + } else { + $subject = $this->encodeHeader($this->secureHeader($subject)); + } + //Calling mail() with null params breaks + if (!$this->UseSendmailOptions || null === $params) { + $result = @mail($to, $subject, $body, $header); + } else { + $result = @mail($to, $subject, $body, $header, $params); + } + + return $result; + } + + /** + * Output debugging info via user-defined method. + * Only generates output if SMTP debug output is enabled (@see SMTP::$do_debug). + * + * @see PHPMailer::$Debugoutput + * @see PHPMailer::$SMTPDebug + * + * @param string $str + */ + protected function edebug($str) + { + if ($this->SMTPDebug <= 0) { + return; + } + //Is this a PSR-3 logger? + if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) { + $this->Debugoutput->debug($str); + + return; + } + //Avoid clash with built-in function names + if (is_callable($this->Debugoutput) && !in_array($this->Debugoutput, ['error_log', 'html', 'echo'])) { + call_user_func($this->Debugoutput, $str, $this->SMTPDebug); + + return; + } + switch ($this->Debugoutput) { + case 'error_log': + //Don't output, just log + error_log($str); + break; + case 'html': + //Cleans up output a bit for a better looking, HTML-safe output + echo htmlentities( + preg_replace('/[\r\n]+/', '', $str), + ENT_QUOTES, + 'UTF-8' + ), "
\n"; + break; + case 'echo': + default: + //Normalize line breaks + $str = preg_replace('/\r\n|\r/m', "\n", $str); + echo gmdate('Y-m-d H:i:s'), + "\t", + //Trim trailing space + trim( + //Indent for readability, except for trailing break + str_replace( + "\n", + "\n \t ", + trim($str) + ) + ), + "\n"; + } + } + + /** + * Sets message type to HTML or plain. + * + * @param bool $isHtml True for HTML mode + */ + public function isHTML($isHtml = true) + { + if ($isHtml) { + $this->ContentType = static::CONTENT_TYPE_TEXT_HTML; + } else { + $this->ContentType = static::CONTENT_TYPE_PLAINTEXT; + } + } + + /** + * Send messages using SMTP. + */ + public function isSMTP() + { + $this->Mailer = 'smtp'; + } + + /** + * Send messages using PHP's mail() function. + */ + public function isMail() + { + $this->Mailer = 'mail'; + } + + /** + * Send messages using $Sendmail. + */ + public function isSendmail() + { + $ini_sendmail_path = ini_get('sendmail_path'); + + if (false === stripos($ini_sendmail_path, 'sendmail')) { + $this->Sendmail = '/usr/sbin/sendmail'; + } else { + $this->Sendmail = $ini_sendmail_path; + } + $this->Mailer = 'sendmail'; + } + + /** + * Send messages using qmail. + */ + public function isQmail() + { + $ini_sendmail_path = ini_get('sendmail_path'); + + if (false === stripos($ini_sendmail_path, 'qmail')) { + $this->Sendmail = '/var/qmail/bin/qmail-inject'; + } else { + $this->Sendmail = $ini_sendmail_path; + } + $this->Mailer = 'qmail'; + } + + /** + * Add a "To" address. + * + * @param string $address The email address to send to + * @param string $name + * + * @throws Exception + * + * @return bool true on success, false if address already used or invalid in some way + */ + public function addAddress($address, $name = '') + { + return $this->addOrEnqueueAnAddress('to', $address, $name); + } + + /** + * Add a "CC" address. + * + * @param string $address The email address to send to + * @param string $name + * + * @throws Exception + * + * @return bool true on success, false if address already used or invalid in some way + */ + public function addCC($address, $name = '') + { + return $this->addOrEnqueueAnAddress('cc', $address, $name); + } + + /** + * Add a "BCC" address. + * + * @param string $address The email address to send to + * @param string $name + * + * @throws Exception + * + * @return bool true on success, false if address already used or invalid in some way + */ + public function addBCC($address, $name = '') + { + return $this->addOrEnqueueAnAddress('bcc', $address, $name); + } + + /** + * Add a "Reply-To" address. + * + * @param string $address The email address to reply to + * @param string $name + * + * @throws Exception + * + * @return bool true on success, false if address already used or invalid in some way + */ + public function addReplyTo($address, $name = '') + { + return $this->addOrEnqueueAnAddress('Reply-To', $address, $name); + } + + /** + * Add an address to one of the recipient arrays or to the ReplyTo array. Because PHPMailer + * can't validate addresses with an IDN without knowing the PHPMailer::$CharSet (that can still + * be modified after calling this function), addition of such addresses is delayed until send(). + * Addresses that have been added already return false, but do not throw exceptions. + * + * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' + * @param string $address The email address to send, resp. to reply to + * @param string $name + * + * @throws Exception + * + * @return bool true on success, false if address already used or invalid in some way + */ + protected function addOrEnqueueAnAddress($kind, $address, $name) + { + $address = trim($address); + $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim + $pos = strrpos($address, '@'); + if (false === $pos) { + // At-sign is missing. + $error_message = sprintf( + '%s (%s): %s', + $this->lang('invalid_address'), + $kind, + $address + ); + $this->setError($error_message); + $this->edebug($error_message); + if ($this->exceptions) { + throw new Exception($error_message); + } + + return false; + } + $params = [$kind, $address, $name]; + // Enqueue addresses with IDN until we know the PHPMailer::$CharSet. + if (static::idnSupported() && $this->has8bitChars(substr($address, ++$pos))) { + if ('Reply-To' !== $kind) { + if (!array_key_exists($address, $this->RecipientsQueue)) { + $this->RecipientsQueue[$address] = $params; + + return true; + } + } elseif (!array_key_exists($address, $this->ReplyToQueue)) { + $this->ReplyToQueue[$address] = $params; + + return true; + } + + return false; + } + + // Immediately add standard addresses without IDN. + return call_user_func_array([$this, 'addAnAddress'], $params); + } + + /** + * Add an address to one of the recipient arrays or to the ReplyTo array. + * Addresses that have been added already return false, but do not throw exceptions. + * + * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' + * @param string $address The email address to send, resp. to reply to + * @param string $name + * + * @throws Exception + * + * @return bool true on success, false if address already used or invalid in some way + */ + protected function addAnAddress($kind, $address, $name = '') + { + if (!in_array($kind, ['to', 'cc', 'bcc', 'Reply-To'])) { + $error_message = sprintf( + '%s: %s', + $this->lang('Invalid recipient kind'), + $kind + ); + $this->setError($error_message); + $this->edebug($error_message); + if ($this->exceptions) { + throw new Exception($error_message); + } + + return false; + } + if (!static::validateAddress($address)) { + $error_message = sprintf( + '%s (%s): %s', + $this->lang('invalid_address'), + $kind, + $address + ); + $this->setError($error_message); + $this->edebug($error_message); + if ($this->exceptions) { + throw new Exception($error_message); + } + + return false; + } + if ('Reply-To' !== $kind) { + if (!array_key_exists(strtolower($address), $this->all_recipients)) { + $this->{$kind}[] = [$address, $name]; + $this->all_recipients[strtolower($address)] = true; + + return true; + } + } elseif (!array_key_exists(strtolower($address), $this->ReplyTo)) { + $this->ReplyTo[strtolower($address)] = [$address, $name]; + + return true; + } + + return false; + } + + /** + * Parse and validate a string containing one or more RFC822-style comma-separated email addresses + * of the form "display name " into an array of name/address pairs. + * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available. + * Note that quotes in the name part are removed. + * + * @see http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation + * + * @param string $addrstr The address list string + * @param bool $useimap Whether to use the IMAP extension to parse the list + * + * @return array + */ + public static function parseAddresses($addrstr, $useimap = true) + { + $addresses = []; + if ($useimap && function_exists('imap_rfc822_parse_adrlist')) { + //Use this built-in parser if it's available + $list = imap_rfc822_parse_adrlist($addrstr, ''); + foreach ($list as $address) { + if (('.SYNTAX-ERROR.' !== $address->host) && static::validateAddress( + $address->mailbox . '@' . $address->host + )) { + $addresses[] = [ + 'name' => (property_exists($address, 'personal') ? $address->personal : ''), + 'address' => $address->mailbox . '@' . $address->host, + ]; + } + } + } else { + //Use this simpler parser + $list = explode(',', $addrstr); + foreach ($list as $address) { + $address = trim($address); + //Is there a separate name part? + if (strpos($address, '<') === false) { + //No separate name, just use the whole thing + if (static::validateAddress($address)) { + $addresses[] = [ + 'name' => '', + 'address' => $address, + ]; + } + } else { + list($name, $email) = explode('<', $address); + $email = trim(str_replace('>', '', $email)); + if (static::validateAddress($email)) { + $addresses[] = [ + 'name' => trim(str_replace(['"', "'"], '', $name)), + 'address' => $email, + ]; + } + } + } + } + + return $addresses; + } + + /** + * Set the From and FromName properties. + * + * @param string $address + * @param string $name + * @param bool $auto Whether to also set the Sender address, defaults to true + * + * @throws Exception + * + * @return bool + */ + public function setFrom($address, $name = '', $auto = true) + { + $address = trim($address); + $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim + // Don't validate now addresses with IDN. Will be done in send(). + $pos = strrpos($address, '@'); + if ((false === $pos) + || ((!$this->has8bitChars(substr($address, ++$pos)) || !static::idnSupported()) + && !static::validateAddress($address)) + ) { + $error_message = sprintf( + '%s (From): %s', + $this->lang('invalid_address'), + $address + ); + $this->setError($error_message); + $this->edebug($error_message); + if ($this->exceptions) { + throw new Exception($error_message); + } + + return false; + } + $this->From = $address; + $this->FromName = $name; + if ($auto && empty($this->Sender)) { + $this->Sender = $address; + } + + return true; + } + + /** + * Return the Message-ID header of the last email. + * Technically this is the value from the last time the headers were created, + * but it's also the message ID of the last sent message except in + * pathological cases. + * + * @return string + */ + public function getLastMessageID() + { + return $this->lastMessageID; + } + + /** + * Check that a string looks like an email address. + * Validation patterns supported: + * * `auto` Pick best pattern automatically; + * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0; + * * `pcre` Use old PCRE implementation; + * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL; + * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements. + * * `noregex` Don't use a regex: super fast, really dumb. + * Alternatively you may pass in a callable to inject your own validator, for example: + * + * ```php + * PHPMailer::validateAddress('user@example.com', function($address) { + * return (strpos($address, '@') !== false); + * }); + * ``` + * + * You can also set the PHPMailer::$validator static to a callable, allowing built-in methods to use your validator. + * + * @param string $address The email address to check + * @param string|callable $patternselect Which pattern to use + * + * @return bool + */ + public static function validateAddress($address, $patternselect = null) + { + if (null === $patternselect) { + $patternselect = static::$validator; + } + if (is_callable($patternselect)) { + return $patternselect($address); + } + //Reject line breaks in addresses; it's valid RFC5322, but not RFC5321 + if (strpos($address, "\n") !== false || strpos($address, "\r") !== false) { + return false; + } + switch ($patternselect) { + case 'pcre': //Kept for BC + case 'pcre8': + /* + * A more complex and more permissive version of the RFC5322 regex on which FILTER_VALIDATE_EMAIL + * is based. + * In addition to the addresses allowed by filter_var, also permits: + * * dotless domains: `a@b` + * * comments: `1234 @ local(blah) .machine .example` + * * quoted elements: `'"test blah"@example.org'` + * * numeric TLDs: `a@b.123` + * * unbracketed IPv4 literals: `a@192.168.0.1` + * * IPv6 literals: 'first.last@[IPv6:a1::]' + * Not all of these will necessarily work for sending! + * + * @see http://squiloople.com/2009/12/20/email-address-validation/ + * @copyright 2009-2010 Michael Rushton + * Feel free to use and redistribute this code. But please keep this copyright notice. + */ + return (bool) preg_match( + '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' . + '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' . + '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' . + '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' . + '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' . + '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' . + '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' . + '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' . + '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD', + $address + ); + case 'html5': + /* + * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements. + * + * @see http://www.whatwg.org/specs/web-apps/current-work/#e-mail-state-(type=email) + */ + return (bool) preg_match( + '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}' . + '[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/sD', + $address + ); + case 'php': + default: + return filter_var($address, FILTER_VALIDATE_EMAIL) !== false; + } + } + + /** + * Tells whether IDNs (Internationalized Domain Names) are supported or not. This requires the + * `intl` and `mbstring` PHP extensions. + * + * @return bool `true` if required functions for IDN support are present + */ + public static function idnSupported() + { + return function_exists('idn_to_ascii') && function_exists('mb_convert_encoding'); + } + + /** + * Converts IDN in given email address to its ASCII form, also known as punycode, if possible. + * Important: Address must be passed in same encoding as currently set in PHPMailer::$CharSet. + * This function silently returns unmodified address if: + * - No conversion is necessary (i.e. domain name is not an IDN, or is already in ASCII form) + * - Conversion to punycode is impossible (e.g. required PHP functions are not available) + * or fails for any reason (e.g. domain contains characters not allowed in an IDN). + * + * @see PHPMailer::$CharSet + * + * @param string $address The email address to convert + * + * @return string The encoded address in ASCII form + */ + public function punyencodeAddress($address) + { + // Verify we have required functions, CharSet, and at-sign. + $pos = strrpos($address, '@'); + if (!empty($this->CharSet) && + false !== $pos && + static::idnSupported() + ) { + $domain = substr($address, ++$pos); + // Verify CharSet string is a valid one, and domain properly encoded in this CharSet. + if ($this->has8bitChars($domain) && @mb_check_encoding($domain, $this->CharSet)) { + $domain = mb_convert_encoding($domain, 'UTF-8', $this->CharSet); + //Ignore IDE complaints about this line - method signature changed in PHP 5.4 + $errorcode = 0; + if (defined('INTL_IDNA_VARIANT_UTS46')) { + $punycode = idn_to_ascii($domain, $errorcode, INTL_IDNA_VARIANT_UTS46); + } elseif (defined('INTL_IDNA_VARIANT_2003')) { + $punycode = idn_to_ascii($domain, $errorcode, INTL_IDNA_VARIANT_2003); + } else { + $punycode = idn_to_ascii($domain, $errorcode); + } + if (false !== $punycode) { + return substr($address, 0, $pos) . $punycode; + } + } + } + + return $address; + } + + /** + * Create a message and send it. + * Uses the sending method specified by $Mailer. + * + * @throws Exception + * + * @return bool false on error - See the ErrorInfo property for details of the error + */ + public function send() + { + try { + if (!$this->preSend()) { + return false; + } + + return $this->postSend(); + } catch (Exception $exc) { + $this->mailHeader = ''; + $this->setError($exc->getMessage()); + if ($this->exceptions) { + throw $exc; + } + + return false; + } + } + + /** + * Prepare a message for sending. + * + * @throws Exception + * + * @return bool + */ + public function preSend() + { + if ('smtp' === $this->Mailer + || ('mail' === $this->Mailer && stripos(PHP_OS, 'WIN') === 0) + ) { + //SMTP mandates RFC-compliant line endings + //and it's also used with mail() on Windows + static::setLE(self::CRLF); + } else { + //Maintain backward compatibility with legacy Linux command line mailers + static::setLE(PHP_EOL); + } + //Check for buggy PHP versions that add a header with an incorrect line break + if ('mail' === $this->Mailer + && ((PHP_VERSION_ID >= 70000 && PHP_VERSION_ID < 70017) + || (PHP_VERSION_ID >= 70100 && PHP_VERSION_ID < 70103)) + && ini_get('mail.add_x_header') === '1' + && stripos(PHP_OS, 'WIN') === 0 + ) { + trigger_error( + 'Your version of PHP is affected by a bug that may result in corrupted messages.' . + ' To fix it, switch to sending using SMTP, disable the mail.add_x_header option in' . + ' your php.ini, switch to MacOS or Linux, or upgrade your PHP to version 7.0.17+ or 7.1.3+.', + E_USER_WARNING + ); + } + + try { + $this->error_count = 0; // Reset errors + $this->mailHeader = ''; + + // Dequeue recipient and Reply-To addresses with IDN + foreach (array_merge($this->RecipientsQueue, $this->ReplyToQueue) as $params) { + $params[1] = $this->punyencodeAddress($params[1]); + call_user_func_array([$this, 'addAnAddress'], $params); + } + if (count($this->to) + count($this->cc) + count($this->bcc) < 1) { + throw new Exception($this->lang('provide_address'), self::STOP_CRITICAL); + } + + // Validate From, Sender, and ConfirmReadingTo addresses + foreach (['From', 'Sender', 'ConfirmReadingTo'] as $address_kind) { + $this->$address_kind = trim($this->$address_kind); + if (empty($this->$address_kind)) { + continue; + } + $this->$address_kind = $this->punyencodeAddress($this->$address_kind); + if (!static::validateAddress($this->$address_kind)) { + $error_message = sprintf( + '%s (%s): %s', + $this->lang('invalid_address'), + $address_kind, + $this->$address_kind + ); + $this->setError($error_message); + $this->edebug($error_message); + if ($this->exceptions) { + throw new Exception($error_message); + } + + return false; + } + } + + // Set whether the message is multipart/alternative + if ($this->alternativeExists()) { + $this->ContentType = static::CONTENT_TYPE_MULTIPART_ALTERNATIVE; + } + + $this->setMessageType(); + // Refuse to send an empty message unless we are specifically allowing it + if (!$this->AllowEmpty && empty($this->Body)) { + throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL); + } + + //Trim subject consistently + $this->Subject = trim($this->Subject); + // Create body before headers in case body makes changes to headers (e.g. altering transfer encoding) + $this->MIMEHeader = ''; + $this->MIMEBody = $this->createBody(); + // createBody may have added some headers, so retain them + $tempheaders = $this->MIMEHeader; + $this->MIMEHeader = $this->createHeader(); + $this->MIMEHeader .= $tempheaders; + + // To capture the complete message when using mail(), create + // an extra header list which createHeader() doesn't fold in + if ('mail' === $this->Mailer) { + if (count($this->to) > 0) { + $this->mailHeader .= $this->addrAppend('To', $this->to); + } else { + $this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;'); + } + $this->mailHeader .= $this->headerLine( + 'Subject', + $this->encodeHeader($this->secureHeader($this->Subject)) + ); + } + + // Sign with DKIM if enabled + if (!empty($this->DKIM_domain) + && !empty($this->DKIM_selector) + && (!empty($this->DKIM_private_string) + || (!empty($this->DKIM_private) + && static::isPermittedPath($this->DKIM_private) + && file_exists($this->DKIM_private) + ) + ) + ) { + $header_dkim = $this->DKIM_Add( + $this->MIMEHeader . $this->mailHeader, + $this->encodeHeader($this->secureHeader($this->Subject)), + $this->MIMEBody + ); + $this->MIMEHeader = static::stripTrailingWSP($this->MIMEHeader) . static::$LE . + static::normalizeBreaks($header_dkim) . static::$LE; + } + + return true; + } catch (Exception $exc) { + $this->setError($exc->getMessage()); + if ($this->exceptions) { + throw $exc; + } + + return false; + } + } + + /** + * Actually send a message via the selected mechanism. + * + * @throws Exception + * + * @return bool + */ + public function postSend() + { + try { + // Choose the mailer and send through it + switch ($this->Mailer) { + case 'sendmail': + case 'qmail': + return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody); + case 'smtp': + return $this->smtpSend($this->MIMEHeader, $this->MIMEBody); + case 'mail': + return $this->mailSend($this->MIMEHeader, $this->MIMEBody); + default: + $sendMethod = $this->Mailer . 'Send'; + if (method_exists($this, $sendMethod)) { + return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody); + } + + return $this->mailSend($this->MIMEHeader, $this->MIMEBody); + } + } catch (Exception $exc) { + $this->setError($exc->getMessage()); + $this->edebug($exc->getMessage()); + if ($this->exceptions) { + throw $exc; + } + } + + return false; + } + + /** + * Send mail using the $Sendmail program. + * + * @see PHPMailer::$Sendmail + * + * @param string $header The message headers + * @param string $body The message body + * + * @throws Exception + * + * @return bool + */ + protected function sendmailSend($header, $body) + { + $header = static::stripTrailingWSP($header) . static::$LE . static::$LE; + + // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. + if (!empty($this->Sender) && self::isShellSafe($this->Sender)) { + if ('qmail' === $this->Mailer) { + $sendmailFmt = '%s -f%s'; + } else { + $sendmailFmt = '%s -oi -f%s -t'; + } + } elseif ('qmail' === $this->Mailer) { + $sendmailFmt = '%s'; + } else { + $sendmailFmt = '%s -oi -t'; + } + + $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender); + + if ($this->SingleTo) { + foreach ($this->SingleToArray as $toAddr) { + $mail = @popen($sendmail, 'w'); + if (!$mail) { + throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); + } + fwrite($mail, 'To: ' . $toAddr . "\n"); + fwrite($mail, $header); + fwrite($mail, $body); + $result = pclose($mail); + $this->doCallback( + ($result === 0), + [$toAddr], + $this->cc, + $this->bcc, + $this->Subject, + $body, + $this->From, + [] + ); + if (0 !== $result) { + throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); + } + } + } else { + $mail = @popen($sendmail, 'w'); + if (!$mail) { + throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); + } + fwrite($mail, $header); + fwrite($mail, $body); + $result = pclose($mail); + $this->doCallback( + ($result === 0), + $this->to, + $this->cc, + $this->bcc, + $this->Subject, + $body, + $this->From, + [] + ); + if (0 !== $result) { + throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); + } + } + + return true; + } + + /** + * Fix CVE-2016-10033 and CVE-2016-10045 by disallowing potentially unsafe shell characters. + * Note that escapeshellarg and escapeshellcmd are inadequate for our purposes, especially on Windows. + * + * @see https://github.com/PHPMailer/PHPMailer/issues/924 CVE-2016-10045 bug report + * + * @param string $string The string to be validated + * + * @return bool + */ + protected static function isShellSafe($string) + { + // Future-proof + if (escapeshellcmd($string) !== $string + || !in_array(escapeshellarg($string), ["'$string'", "\"$string\""]) + ) { + return false; + } + + $length = strlen($string); + + for ($i = 0; $i < $length; ++$i) { + $c = $string[$i]; + + // All other characters have a special meaning in at least one common shell, including = and +. + // Full stop (.) has a special meaning in cmd.exe, but its impact should be negligible here. + // Note that this does permit non-Latin alphanumeric characters based on the current locale. + if (!ctype_alnum($c) && strpos('@_-.', $c) === false) { + return false; + } + } + + return true; + } + + /** + * Check whether a file path is of a permitted type. + * Used to reject URLs and phar files from functions that access local file paths, + * such as addAttachment. + * + * @param string $path A relative or absolute path to a file + * + * @return bool + */ + protected static function isPermittedPath($path) + { + return !preg_match('#^[a-z]+://#i', $path); + } + + /** + * Send mail using the PHP mail() function. + * + * @see http://www.php.net/manual/en/book.mail.php + * + * @param string $header The message headers + * @param string $body The message body + * + * @throws Exception + * + * @return bool + */ + protected function mailSend($header, $body) + { + $header = static::stripTrailingWSP($header) . static::$LE . static::$LE; + + $toArr = []; + foreach ($this->to as $toaddr) { + $toArr[] = $this->addrFormat($toaddr); + } + $to = implode(', ', $toArr); + + $params = null; + //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver + //A space after `-f` is optional, but there is a long history of its presence + //causing problems, so we don't use one + //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html + //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html + //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html + //Example problem: https://www.drupal.org/node/1057954 + // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. + if (!empty($this->Sender) && static::validateAddress($this->Sender) && self::isShellSafe($this->Sender)) { + $params = sprintf('-f%s', $this->Sender); + } + if (!empty($this->Sender) && static::validateAddress($this->Sender)) { + $old_from = ini_get('sendmail_from'); + ini_set('sendmail_from', $this->Sender); + } + $result = false; + if ($this->SingleTo && count($toArr) > 1) { + foreach ($toArr as $toAddr) { + $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params); + $this->doCallback($result, [$toAddr], $this->cc, $this->bcc, $this->Subject, $body, $this->From, []); + } + } else { + $result = $this->mailPassthru($to, $this->Subject, $body, $header, $params); + $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From, []); + } + if (isset($old_from)) { + ini_set('sendmail_from', $old_from); + } + if (!$result) { + throw new Exception($this->lang('instantiate'), self::STOP_CRITICAL); + } + + return true; + } + + /** + * Get an instance to use for SMTP operations. + * Override this function to load your own SMTP implementation, + * or set one with setSMTPInstance. + * + * @return SMTP + */ + public function getSMTPInstance() + { + if (!is_object($this->smtp)) { + $this->smtp = new SMTP(); + } + + return $this->smtp; + } + + /** + * Provide an instance to use for SMTP operations. + * + * @return SMTP + */ + public function setSMTPInstance(SMTP $smtp) + { + $this->smtp = $smtp; + + return $this->smtp; + } + + /** + * Send mail via SMTP. + * Returns false if there is a bad MAIL FROM, RCPT, or DATA input. + * + * @see PHPMailer::setSMTPInstance() to use a different class. + * + * @uses \PHPMailer\PHPMailer\SMTP + * + * @param string $header The message headers + * @param string $body The message body + * + * @throws Exception + * + * @return bool + */ + protected function smtpSend($header, $body) + { + $header = static::stripTrailingWSP($header) . static::$LE . static::$LE; + $bad_rcpt = []; + if (!$this->smtpConnect($this->SMTPOptions)) { + throw new Exception($this->lang('smtp_connect_failed'), self::STOP_CRITICAL); + } + //Sender already validated in preSend() + if ('' === $this->Sender) { + $smtp_from = $this->From; + } else { + $smtp_from = $this->Sender; + } + if (!$this->smtp->mail($smtp_from)) { + $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError())); + throw new Exception($this->ErrorInfo, self::STOP_CRITICAL); + } + + $callbacks = []; + // Attempt to send to all recipients + foreach ([$this->to, $this->cc, $this->bcc] as $togroup) { + foreach ($togroup as $to) { + if (!$this->smtp->recipient($to[0], $this->dsn)) { + $error = $this->smtp->getError(); + $bad_rcpt[] = ['to' => $to[0], 'error' => $error['detail']]; + $isSent = false; + } else { + $isSent = true; + } + + $callbacks[] = ['issent'=>$isSent, 'to'=>$to[0]]; + } + } + + // Only send the DATA command if we have viable recipients + if ((count($this->all_recipients) > count($bad_rcpt)) && !$this->smtp->data($header . $body)) { + throw new Exception($this->lang('data_not_accepted'), self::STOP_CRITICAL); + } + + $smtp_transaction_id = $this->smtp->getLastTransactionID(); + + if ($this->SMTPKeepAlive) { + $this->smtp->reset(); + } else { + $this->smtp->quit(); + $this->smtp->close(); + } + + foreach ($callbacks as $cb) { + $this->doCallback( + $cb['issent'], + [$cb['to']], + [], + [], + $this->Subject, + $body, + $this->From, + ['smtp_transaction_id' => $smtp_transaction_id] + ); + } + + //Create error message for any bad addresses + if (count($bad_rcpt) > 0) { + $errstr = ''; + foreach ($bad_rcpt as $bad) { + $errstr .= $bad['to'] . ': ' . $bad['error']; + } + throw new Exception($this->lang('recipients_failed') . $errstr, self::STOP_CONTINUE); + } + + return true; + } + + /** + * Initiate a connection to an SMTP server. + * Returns false if the operation failed. + * + * @param array $options An array of options compatible with stream_context_create() + * + * @throws Exception + * + * @uses \PHPMailer\PHPMailer\SMTP + * + * @return bool + */ + public function smtpConnect($options = null) + { + if (null === $this->smtp) { + $this->smtp = $this->getSMTPInstance(); + } + + //If no options are provided, use whatever is set in the instance + if (null === $options) { + $options = $this->SMTPOptions; + } + + // Already connected? + if ($this->smtp->connected()) { + return true; + } + + $this->smtp->setTimeout($this->Timeout); + $this->smtp->setDebugLevel($this->SMTPDebug); + $this->smtp->setDebugOutput($this->Debugoutput); + $this->smtp->setVerp($this->do_verp); + $hosts = explode(';', $this->Host); + $lastexception = null; + + foreach ($hosts as $hostentry) { + $hostinfo = []; + if (!preg_match( + '/^(?:(ssl|tls):\/\/)?(.+?)(?::(\d+))?$/', + trim($hostentry), + $hostinfo + )) { + $this->edebug($this->lang('invalid_hostentry') . ' ' . trim($hostentry)); + // Not a valid host entry + continue; + } + // $hostinfo[1]: optional ssl or tls prefix + // $hostinfo[2]: the hostname + // $hostinfo[3]: optional port number + // The host string prefix can temporarily override the current setting for SMTPSecure + // If it's not specified, the default value is used + + //Check the host name is a valid name or IP address before trying to use it + if (!static::isValidHost($hostinfo[2])) { + $this->edebug($this->lang('invalid_host') . ' ' . $hostinfo[2]); + continue; + } + $prefix = ''; + $secure = $this->SMTPSecure; + $tls = (static::ENCRYPTION_STARTTLS === $this->SMTPSecure); + if ('ssl' === $hostinfo[1] || ('' === $hostinfo[1] && static::ENCRYPTION_SMTPS === $this->SMTPSecure)) { + $prefix = 'ssl://'; + $tls = false; // Can't have SSL and TLS at the same time + $secure = static::ENCRYPTION_SMTPS; + } elseif ('tls' === $hostinfo[1]) { + $tls = true; + // tls doesn't use a prefix + $secure = static::ENCRYPTION_STARTTLS; + } + //Do we need the OpenSSL extension? + $sslext = defined('OPENSSL_ALGO_SHA256'); + if (static::ENCRYPTION_STARTTLS === $secure || static::ENCRYPTION_SMTPS === $secure) { + //Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled + if (!$sslext) { + throw new Exception($this->lang('extension_missing') . 'openssl', self::STOP_CRITICAL); + } + } + $host = $hostinfo[2]; + $port = $this->Port; + if (array_key_exists(3, $hostinfo) && is_numeric($hostinfo[3]) && $hostinfo[3] > 0 && $hostinfo[3] < 65536) { + $port = (int) $hostinfo[3]; + } + if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) { + try { + if ($this->Helo) { + $hello = $this->Helo; + } else { + $hello = $this->serverHostname(); + } + $this->smtp->hello($hello); + //Automatically enable TLS encryption if: + // * it's not disabled + // * we have openssl extension + // * we are not already using SSL + // * the server offers STARTTLS + if ($this->SMTPAutoTLS && $sslext && 'ssl' !== $secure && $this->smtp->getServerExt('STARTTLS')) { + $tls = true; + } + if ($tls) { + if (!$this->smtp->startTLS()) { + throw new Exception($this->lang('connect_host')); + } + // We must resend EHLO after TLS negotiation + $this->smtp->hello($hello); + } + if ($this->SMTPAuth && !$this->smtp->authenticate( + $this->Username, + $this->Password, + $this->AuthType, + $this->oauth + )) { + throw new Exception($this->lang('authenticate')); + } + + return true; + } catch (Exception $exc) { + $lastexception = $exc; + $this->edebug($exc->getMessage()); + // We must have connected, but then failed TLS or Auth, so close connection nicely + $this->smtp->quit(); + } + } + } + // If we get here, all connection attempts have failed, so close connection hard + $this->smtp->close(); + // As we've caught all exceptions, just report whatever the last one was + if ($this->exceptions && null !== $lastexception) { + throw $lastexception; + } + + return false; + } + + /** + * Close the active SMTP session if one exists. + */ + public function smtpClose() + { + if ((null !== $this->smtp) && $this->smtp->connected()) { + $this->smtp->quit(); + $this->smtp->close(); + } + } + + /** + * Set the language for error messages. + * Returns false if it cannot load the language file. + * The default language is English. + * + * @param string $langcode ISO 639-1 2-character language code (e.g. French is "fr") + * @param string $lang_path Path to the language file directory, with trailing separator (slash) + * + * @return bool + */ + public function setLanguage($langcode = 'en', $lang_path = '') + { + // Backwards compatibility for renamed language codes + $renamed_langcodes = [ + 'br' => 'pt_br', + 'cz' => 'cs', + 'dk' => 'da', + 'no' => 'nb', + 'se' => 'sv', + 'rs' => 'sr', + 'tg' => 'tl', + 'am' => 'hy', + ]; + + if (isset($renamed_langcodes[$langcode])) { + $langcode = $renamed_langcodes[$langcode]; + } + + // Define full set of translatable strings in English + $PHPMAILER_LANG = [ + 'authenticate' => 'SMTP Error: Could not authenticate.', + 'connect_host' => 'SMTP Error: Could not connect to SMTP host.', + 'data_not_accepted' => 'SMTP Error: data not accepted.', + 'empty_message' => 'Message body empty', + 'encoding' => 'Unknown encoding: ', + 'execute' => 'Could not execute: ', + 'file_access' => 'Could not access file: ', + 'file_open' => 'File Error: Could not open file: ', + 'from_failed' => 'The following From address failed: ', + 'instantiate' => 'Could not instantiate mail function.', + 'invalid_address' => 'Invalid address: ', + 'invalid_hostentry' => 'Invalid hostentry: ', + 'invalid_host' => 'Invalid host: ', + 'mailer_not_supported' => ' mailer is not supported.', + 'provide_address' => 'You must provide at least one recipient email address.', + 'recipients_failed' => 'SMTP Error: The following recipients failed: ', + 'signing' => 'Signing Error: ', + 'smtp_connect_failed' => 'SMTP connect() failed.', + 'smtp_error' => 'SMTP server error: ', + 'variable_set' => 'Cannot set or reset variable: ', + 'extension_missing' => 'Extension missing: ', + ]; + if (empty($lang_path)) { + // Calculate an absolute path so it can work if CWD is not here + $lang_path = dirname(__DIR__) . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR; + } + //Validate $langcode + if (!preg_match('/^[a-z]{2}(?:_[a-zA-Z]{2})?$/', $langcode)) { + $langcode = 'en'; + } + $foundlang = true; + $lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php'; + // There is no English translation file + if ('en' !== $langcode) { + // Make sure language file path is readable + if (!static::isPermittedPath($lang_file) || !file_exists($lang_file)) { + $foundlang = false; + } else { + // Overwrite language-specific strings. + // This way we'll never have missing translation keys. + $foundlang = include $lang_file; + } + } + $this->language = $PHPMAILER_LANG; + + return (bool) $foundlang; // Returns false if language not found + } + + /** + * Get the array of strings for the current language. + * + * @return array + */ + public function getTranslations() + { + return $this->language; + } + + /** + * Create recipient headers. + * + * @param string $type + * @param array $addr An array of recipients, + * where each recipient is a 2-element indexed array with element 0 containing an address + * and element 1 containing a name, like: + * [['joe@example.com', 'Joe User'], ['zoe@example.com', 'Zoe User']] + * + * @return string + */ + public function addrAppend($type, $addr) + { + $addresses = []; + foreach ($addr as $address) { + $addresses[] = $this->addrFormat($address); + } + + return $type . ': ' . implode(', ', $addresses) . static::$LE; + } + + /** + * Format an address for use in a message header. + * + * @param array $addr A 2-element indexed array, element 0 containing an address, element 1 containing a name like + * ['joe@example.com', 'Joe User'] + * + * @return string + */ + public function addrFormat($addr) + { + if (empty($addr[1])) { // No name provided + return $this->secureHeader($addr[0]); + } + + return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . + ' <' . $this->secureHeader($addr[0]) . '>'; + } + + /** + * Word-wrap message. + * For use with mailers that do not automatically perform wrapping + * and for quoted-printable encoded messages. + * Original written by philippe. + * + * @param string $message The message to wrap + * @param int $length The line length to wrap to + * @param bool $qp_mode Whether to run in Quoted-Printable mode + * + * @return string + */ + public function wrapText($message, $length, $qp_mode = false) + { + if ($qp_mode) { + $soft_break = sprintf(' =%s', static::$LE); + } else { + $soft_break = static::$LE; + } + // If utf-8 encoding is used, we will need to make sure we don't + // split multibyte characters when we wrap + $is_utf8 = static::CHARSET_UTF8 === strtolower($this->CharSet); + $lelen = strlen(static::$LE); + $crlflen = strlen(static::$LE); + + $message = static::normalizeBreaks($message); + //Remove a trailing line break + if (substr($message, -$lelen) === static::$LE) { + $message = substr($message, 0, -$lelen); + } + + //Split message into lines + $lines = explode(static::$LE, $message); + //Message will be rebuilt in here + $message = ''; + foreach ($lines as $line) { + $words = explode(' ', $line); + $buf = ''; + $firstword = true; + foreach ($words as $word) { + if ($qp_mode && (strlen($word) > $length)) { + $space_left = $length - strlen($buf) - $crlflen; + if (!$firstword) { + if ($space_left > 20) { + $len = $space_left; + if ($is_utf8) { + $len = $this->utf8CharBoundary($word, $len); + } elseif ('=' === substr($word, $len - 1, 1)) { + --$len; + } elseif ('=' === substr($word, $len - 2, 1)) { + $len -= 2; + } + $part = substr($word, 0, $len); + $word = substr($word, $len); + $buf .= ' ' . $part; + $message .= $buf . sprintf('=%s', static::$LE); + } else { + $message .= $buf . $soft_break; + } + $buf = ''; + } + while ($word !== '') { + if ($length <= 0) { + break; + } + $len = $length; + if ($is_utf8) { + $len = $this->utf8CharBoundary($word, $len); + } elseif ('=' === substr($word, $len - 1, 1)) { + --$len; + } elseif ('=' === substr($word, $len - 2, 1)) { + $len -= 2; + } + $part = substr($word, 0, $len); + $word = (string) substr($word, $len); + + if ($word !== '') { + $message .= $part . sprintf('=%s', static::$LE); + } else { + $buf = $part; + } + } + } else { + $buf_o = $buf; + if (!$firstword) { + $buf .= ' '; + } + $buf .= $word; + + if ('' !== $buf_o && strlen($buf) > $length) { + $message .= $buf_o . $soft_break; + $buf = $word; + } + } + $firstword = false; + } + $message .= $buf . static::$LE; + } + + return $message; + } + + /** + * Find the last character boundary prior to $maxLength in a utf-8 + * quoted-printable encoded string. + * Original written by Colin Brown. + * + * @param string $encodedText utf-8 QP text + * @param int $maxLength Find the last character boundary prior to this length + * + * @return int + */ + public function utf8CharBoundary($encodedText, $maxLength) + { + $foundSplitPos = false; + $lookBack = 3; + while (!$foundSplitPos) { + $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack); + $encodedCharPos = strpos($lastChunk, '='); + if (false !== $encodedCharPos) { + // Found start of encoded character byte within $lookBack block. + // Check the encoded byte value (the 2 chars after the '=') + $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2); + $dec = hexdec($hex); + if ($dec < 128) { + // Single byte character. + // If the encoded char was found at pos 0, it will fit + // otherwise reduce maxLength to start of the encoded char + if ($encodedCharPos > 0) { + $maxLength -= $lookBack - $encodedCharPos; + } + $foundSplitPos = true; + } elseif ($dec >= 192) { + // First byte of a multi byte character + // Reduce maxLength to split at start of character + $maxLength -= $lookBack - $encodedCharPos; + $foundSplitPos = true; + } elseif ($dec < 192) { + // Middle byte of a multi byte character, look further back + $lookBack += 3; + } + } else { + // No encoded character found + $foundSplitPos = true; + } + } + + return $maxLength; + } + + /** + * Apply word wrapping to the message body. + * Wraps the message body to the number of chars set in the WordWrap property. + * You should only do this to plain-text bodies as wrapping HTML tags may break them. + * This is called automatically by createBody(), so you don't need to call it yourself. + */ + public function setWordWrap() + { + if ($this->WordWrap < 1) { + return; + } + + switch ($this->message_type) { + case 'alt': + case 'alt_inline': + case 'alt_attach': + case 'alt_inline_attach': + $this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap); + break; + default: + $this->Body = $this->wrapText($this->Body, $this->WordWrap); + break; + } + } + + /** + * Assemble message headers. + * + * @return string The assembled headers + */ + public function createHeader() + { + $result = ''; + + $result .= $this->headerLine('Date', '' === $this->MessageDate ? self::rfcDate() : $this->MessageDate); + + // To be created automatically by mail() + if ($this->SingleTo) { + if ('mail' !== $this->Mailer) { + foreach ($this->to as $toaddr) { + $this->SingleToArray[] = $this->addrFormat($toaddr); + } + } + } elseif (count($this->to) > 0) { + if ('mail' !== $this->Mailer) { + $result .= $this->addrAppend('To', $this->to); + } + } elseif (count($this->cc) === 0) { + $result .= $this->headerLine('To', 'undisclosed-recipients:;'); + } + + $result .= $this->addrAppend('From', [[trim($this->From), $this->FromName]]); + + // sendmail and mail() extract Cc from the header before sending + if (count($this->cc) > 0) { + $result .= $this->addrAppend('Cc', $this->cc); + } + + // sendmail and mail() extract Bcc from the header before sending + if (( + 'sendmail' === $this->Mailer || 'qmail' === $this->Mailer || 'mail' === $this->Mailer + ) + && count($this->bcc) > 0 + ) { + $result .= $this->addrAppend('Bcc', $this->bcc); + } + + if (count($this->ReplyTo) > 0) { + $result .= $this->addrAppend('Reply-To', $this->ReplyTo); + } + + // mail() sets the subject itself + if ('mail' !== $this->Mailer) { + $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject))); + } + + // Only allow a custom message ID if it conforms to RFC 5322 section 3.6.4 + // https://tools.ietf.org/html/rfc5322#section-3.6.4 + if ('' !== $this->MessageID && preg_match('/^<.*@.*>$/', $this->MessageID)) { + $this->lastMessageID = $this->MessageID; + } else { + $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname()); + } + $result .= $this->headerLine('Message-ID', $this->lastMessageID); + if (null !== $this->Priority) { + $result .= $this->headerLine('X-Priority', $this->Priority); + } + if ('' === $this->XMailer) { + $result .= $this->headerLine( + 'X-Mailer', + 'PHPMailer ' . self::VERSION . ' (https://github.com/PHPMailer/PHPMailer)' + ); + } else { + $myXmailer = trim($this->XMailer); + if ($myXmailer) { + $result .= $this->headerLine('X-Mailer', $myXmailer); + } + } + + if ('' !== $this->ConfirmReadingTo) { + $result .= $this->headerLine('Disposition-Notification-To', '<' . $this->ConfirmReadingTo . '>'); + } + + // Add custom headers + foreach ($this->CustomHeader as $header) { + $result .= $this->headerLine( + trim($header[0]), + $this->encodeHeader(trim($header[1])) + ); + } + if (!$this->sign_key_file) { + $result .= $this->headerLine('MIME-Version', '1.0'); + $result .= $this->getMailMIME(); + } + + return $result; + } + + /** + * Get the message MIME type headers. + * + * @return string + */ + public function getMailMIME() + { + $result = ''; + $ismultipart = true; + switch ($this->message_type) { + case 'inline': + $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); + $result .= $this->textLine(' boundary="' . $this->boundary[1] . '"'); + break; + case 'attach': + case 'inline_attach': + case 'alt_attach': + case 'alt_inline_attach': + $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_MIXED . ';'); + $result .= $this->textLine(' boundary="' . $this->boundary[1] . '"'); + break; + case 'alt': + case 'alt_inline': + $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); + $result .= $this->textLine(' boundary="' . $this->boundary[1] . '"'); + break; + default: + // Catches case 'plain': and case '': + $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet); + $ismultipart = false; + break; + } + // RFC1341 part 5 says 7bit is assumed if not specified + if (static::ENCODING_7BIT !== $this->Encoding) { + // RFC 2045 section 6.4 says multipart MIME parts may only use 7bit, 8bit or binary CTE + if ($ismultipart) { + if (static::ENCODING_8BIT === $this->Encoding) { + $result .= $this->headerLine('Content-Transfer-Encoding', static::ENCODING_8BIT); + } + // The only remaining alternatives are quoted-printable and base64, which are both 7bit compatible + } else { + $result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding); + } + } + + if ('mail' !== $this->Mailer) { +// $result .= static::$LE; + } + + return $result; + } + + /** + * Returns the whole MIME message. + * Includes complete headers and body. + * Only valid post preSend(). + * + * @see PHPMailer::preSend() + * + * @return string + */ + public function getSentMIMEMessage() + { + return static::stripTrailingWSP($this->MIMEHeader . $this->mailHeader) . + static::$LE . static::$LE . $this->MIMEBody; + } + + /** + * Create a unique ID to use for boundaries. + * + * @return string + */ + protected function generateId() + { + $len = 32; //32 bytes = 256 bits + $bytes = ''; + if (function_exists('random_bytes')) { + try { + $bytes = random_bytes($len); + } catch (\Exception $e) { + //Do nothing + } + } elseif (function_exists('openssl_random_pseudo_bytes')) { + /** @noinspection CryptographicallySecureRandomnessInspection */ + $bytes = openssl_random_pseudo_bytes($len); + } + if ($bytes === '') { + //We failed to produce a proper random string, so make do. + //Use a hash to force the length to the same as the other methods + $bytes = hash('sha256', uniqid((string) mt_rand(), true), true); + } + + //We don't care about messing up base64 format here, just want a random string + return str_replace(['=', '+', '/'], '', base64_encode(hash('sha256', $bytes, true))); + } + + /** + * Assemble the message body. + * Returns an empty string on failure. + * + * @throws Exception + * + * @return string The assembled message body + */ + public function createBody() + { + $body = ''; + //Create unique IDs and preset boundaries + $this->uniqueid = $this->generateId(); + $this->boundary[1] = 'b1_' . $this->uniqueid; + $this->boundary[2] = 'b2_' . $this->uniqueid; + $this->boundary[3] = 'b3_' . $this->uniqueid; + + if ($this->sign_key_file) { + $body .= $this->getMailMIME() . static::$LE; + } + + $this->setWordWrap(); + + $bodyEncoding = $this->Encoding; + $bodyCharSet = $this->CharSet; + //Can we do a 7-bit downgrade? + if (static::ENCODING_8BIT === $bodyEncoding && !$this->has8bitChars($this->Body)) { + $bodyEncoding = static::ENCODING_7BIT; + //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit + $bodyCharSet = static::CHARSET_ASCII; + } + //If lines are too long, and we're not already using an encoding that will shorten them, + //change to quoted-printable transfer encoding for the body part only + if (static::ENCODING_BASE64 !== $this->Encoding && static::hasLineLongerThanMax($this->Body)) { + $bodyEncoding = static::ENCODING_QUOTED_PRINTABLE; + } + + $altBodyEncoding = $this->Encoding; + $altBodyCharSet = $this->CharSet; + //Can we do a 7-bit downgrade? + if (static::ENCODING_8BIT === $altBodyEncoding && !$this->has8bitChars($this->AltBody)) { + $altBodyEncoding = static::ENCODING_7BIT; + //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit + $altBodyCharSet = static::CHARSET_ASCII; + } + //If lines are too long, and we're not already using an encoding that will shorten them, + //change to quoted-printable transfer encoding for the alt body part only + if (static::ENCODING_BASE64 !== $altBodyEncoding && static::hasLineLongerThanMax($this->AltBody)) { + $altBodyEncoding = static::ENCODING_QUOTED_PRINTABLE; + } + //Use this as a preamble in all multipart message types + $mimepre = 'This is a multi-part message in MIME format.' . static::$LE . static::$LE; + switch ($this->message_type) { + case 'inline': + $body .= $mimepre; + $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); + $body .= $this->encodeString($this->Body, $bodyEncoding); + $body .= static::$LE; + $body .= $this->attachAll('inline', $this->boundary[1]); + break; + case 'attach': + $body .= $mimepre; + $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); + $body .= $this->encodeString($this->Body, $bodyEncoding); + $body .= static::$LE; + $body .= $this->attachAll('attachment', $this->boundary[1]); + break; + case 'inline_attach': + $body .= $mimepre; + $body .= $this->textLine('--' . $this->boundary[1]); + $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); + $body .= $this->textLine(' boundary="' . $this->boundary[2] . '";'); + $body .= $this->textLine(' type="' . static::CONTENT_TYPE_TEXT_HTML . '"'); + $body .= static::$LE; + $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding); + $body .= $this->encodeString($this->Body, $bodyEncoding); + $body .= static::$LE; + $body .= $this->attachAll('inline', $this->boundary[2]); + $body .= static::$LE; + $body .= $this->attachAll('attachment', $this->boundary[1]); + break; + case 'alt': + $body .= $mimepre; + $body .= $this->getBoundary( + $this->boundary[1], + $altBodyCharSet, + static::CONTENT_TYPE_PLAINTEXT, + $altBodyEncoding + ); + $body .= $this->encodeString($this->AltBody, $altBodyEncoding); + $body .= static::$LE; + $body .= $this->getBoundary( + $this->boundary[1], + $bodyCharSet, + static::CONTENT_TYPE_TEXT_HTML, + $bodyEncoding + ); + $body .= $this->encodeString($this->Body, $bodyEncoding); + $body .= static::$LE; + if (!empty($this->Ical)) { + $method = static::ICAL_METHOD_REQUEST; + foreach (static::$IcalMethods as $imethod) { + if (stripos($this->Ical, 'METHOD:' . $imethod) !== false) { + $method = $imethod; + break; + } + } + $body .= $this->getBoundary( + $this->boundary[1], + '', + static::CONTENT_TYPE_TEXT_CALENDAR . '; method=' . $method, + '' + ); + $body .= $this->encodeString($this->Ical, $this->Encoding); + $body .= static::$LE; + } + $body .= $this->endBoundary($this->boundary[1]); + break; + case 'alt_inline': + $body .= $mimepre; + $body .= $this->getBoundary( + $this->boundary[1], + $altBodyCharSet, + static::CONTENT_TYPE_PLAINTEXT, + $altBodyEncoding + ); + $body .= $this->encodeString($this->AltBody, $altBodyEncoding); + $body .= static::$LE; + $body .= $this->textLine('--' . $this->boundary[1]); + $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); + $body .= $this->textLine(' boundary="' . $this->boundary[2] . '";'); + $body .= $this->textLine(' type="' . static::CONTENT_TYPE_TEXT_HTML . '"'); + $body .= static::$LE; + $body .= $this->getBoundary( + $this->boundary[2], + $bodyCharSet, + static::CONTENT_TYPE_TEXT_HTML, + $bodyEncoding + ); + $body .= $this->encodeString($this->Body, $bodyEncoding); + $body .= static::$LE; + $body .= $this->attachAll('inline', $this->boundary[2]); + $body .= static::$LE; + $body .= $this->endBoundary($this->boundary[1]); + break; + case 'alt_attach': + $body .= $mimepre; + $body .= $this->textLine('--' . $this->boundary[1]); + $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); + $body .= $this->textLine(' boundary="' . $this->boundary[2] . '"'); + $body .= static::$LE; + $body .= $this->getBoundary( + $this->boundary[2], + $altBodyCharSet, + static::CONTENT_TYPE_PLAINTEXT, + $altBodyEncoding + ); + $body .= $this->encodeString($this->AltBody, $altBodyEncoding); + $body .= static::$LE; + $body .= $this->getBoundary( + $this->boundary[2], + $bodyCharSet, + static::CONTENT_TYPE_TEXT_HTML, + $bodyEncoding + ); + $body .= $this->encodeString($this->Body, $bodyEncoding); + $body .= static::$LE; + if (!empty($this->Ical)) { + $method = static::ICAL_METHOD_REQUEST; + foreach (static::$IcalMethods as $imethod) { + if (stripos($this->Ical, 'METHOD:' . $imethod) !== false) { + $method = $imethod; + break; + } + } + $body .= $this->getBoundary( + $this->boundary[2], + '', + static::CONTENT_TYPE_TEXT_CALENDAR . '; method=' . $method, + '' + ); + $body .= $this->encodeString($this->Ical, $this->Encoding); + } + $body .= $this->endBoundary($this->boundary[2]); + $body .= static::$LE; + $body .= $this->attachAll('attachment', $this->boundary[1]); + break; + case 'alt_inline_attach': + $body .= $mimepre; + $body .= $this->textLine('--' . $this->boundary[1]); + $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); + $body .= $this->textLine(' boundary="' . $this->boundary[2] . '"'); + $body .= static::$LE; + $body .= $this->getBoundary( + $this->boundary[2], + $altBodyCharSet, + static::CONTENT_TYPE_PLAINTEXT, + $altBodyEncoding + ); + $body .= $this->encodeString($this->AltBody, $altBodyEncoding); + $body .= static::$LE; + $body .= $this->textLine('--' . $this->boundary[2]); + $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); + $body .= $this->textLine(' boundary="' . $this->boundary[3] . '";'); + $body .= $this->textLine(' type="' . static::CONTENT_TYPE_TEXT_HTML . '"'); + $body .= static::$LE; + $body .= $this->getBoundary( + $this->boundary[3], + $bodyCharSet, + static::CONTENT_TYPE_TEXT_HTML, + $bodyEncoding + ); + $body .= $this->encodeString($this->Body, $bodyEncoding); + $body .= static::$LE; + $body .= $this->attachAll('inline', $this->boundary[3]); + $body .= static::$LE; + $body .= $this->endBoundary($this->boundary[2]); + $body .= static::$LE; + $body .= $this->attachAll('attachment', $this->boundary[1]); + break; + default: + // Catch case 'plain' and case '', applies to simple `text/plain` and `text/html` body content types + //Reset the `Encoding` property in case we changed it for line length reasons + $this->Encoding = $bodyEncoding; + $body .= $this->encodeString($this->Body, $this->Encoding); + break; + } + + if ($this->isError()) { + $body = ''; + if ($this->exceptions) { + throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL); + } + } elseif ($this->sign_key_file) { + try { + if (!defined('PKCS7_TEXT')) { + throw new Exception($this->lang('extension_missing') . 'openssl'); + } + + $file = tempnam(sys_get_temp_dir(), 'srcsign'); + $signed = tempnam(sys_get_temp_dir(), 'mailsign'); + file_put_contents($file, $body); + + //Workaround for PHP bug https://bugs.php.net/bug.php?id=69197 + if (empty($this->sign_extracerts_file)) { + $sign = @openssl_pkcs7_sign( + $file, + $signed, + 'file://' . realpath($this->sign_cert_file), + ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], + [] + ); + } else { + $sign = @openssl_pkcs7_sign( + $file, + $signed, + 'file://' . realpath($this->sign_cert_file), + ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], + [], + PKCS7_DETACHED, + $this->sign_extracerts_file + ); + } + + @unlink($file); + if ($sign) { + $body = file_get_contents($signed); + @unlink($signed); + //The message returned by openssl contains both headers and body, so need to split them up + $parts = explode("\n\n", $body, 2); + $this->MIMEHeader .= $parts[0] . static::$LE . static::$LE; + $body = $parts[1]; + } else { + @unlink($signed); + throw new Exception($this->lang('signing') . openssl_error_string()); + } + } catch (Exception $exc) { + $body = ''; + if ($this->exceptions) { + throw $exc; + } + } + } + + return $body; + } + + /** + * Return the start of a message boundary. + * + * @param string $boundary + * @param string $charSet + * @param string $contentType + * @param string $encoding + * + * @return string + */ + protected function getBoundary($boundary, $charSet, $contentType, $encoding) + { + $result = ''; + if ('' === $charSet) { + $charSet = $this->CharSet; + } + if ('' === $contentType) { + $contentType = $this->ContentType; + } + if ('' === $encoding) { + $encoding = $this->Encoding; + } + $result .= $this->textLine('--' . $boundary); + $result .= sprintf('Content-Type: %s; charset=%s', $contentType, $charSet); + $result .= static::$LE; + // RFC1341 part 5 says 7bit is assumed if not specified + if (static::ENCODING_7BIT !== $encoding) { + $result .= $this->headerLine('Content-Transfer-Encoding', $encoding); + } + $result .= static::$LE; + + return $result; + } + + /** + * Return the end of a message boundary. + * + * @param string $boundary + * + * @return string + */ + protected function endBoundary($boundary) + { + return static::$LE . '--' . $boundary . '--' . static::$LE; + } + + /** + * Set the message type. + * PHPMailer only supports some preset message types, not arbitrary MIME structures. + */ + protected function setMessageType() + { + $type = []; + if ($this->alternativeExists()) { + $type[] = 'alt'; + } + if ($this->inlineImageExists()) { + $type[] = 'inline'; + } + if ($this->attachmentExists()) { + $type[] = 'attach'; + } + $this->message_type = implode('_', $type); + if ('' === $this->message_type) { + //The 'plain' message_type refers to the message having a single body element, not that it is plain-text + $this->message_type = 'plain'; + } + } + + /** + * Format a header line. + * + * @param string $name + * @param string|int $value + * + * @return string + */ + public function headerLine($name, $value) + { + return $name . ': ' . $value . static::$LE; + } + + /** + * Return a formatted mail line. + * + * @param string $value + * + * @return string + */ + public function textLine($value) + { + return $value . static::$LE; + } + + /** + * Add an attachment from a path on the filesystem. + * Never use a user-supplied path to a file! + * Returns false if the file could not be found or read. + * Explicitly *does not* support passing URLs; PHPMailer is not an HTTP client. + * If you need to do that, fetch the resource yourself and pass it in via a local file or string. + * + * @param string $path Path to the attachment + * @param string $name Overrides the attachment name + * @param string $encoding File encoding (see $Encoding) + * @param string $type File extension (MIME) type + * @param string $disposition Disposition to use + * + * @throws Exception + * + * @return bool + */ + public function addAttachment( + $path, + $name = '', + $encoding = self::ENCODING_BASE64, + $type = '', + $disposition = 'attachment' + ) { + try { + if (!static::isPermittedPath($path) || !@is_file($path) || !is_readable($path)) { + throw new Exception($this->lang('file_access') . $path, self::STOP_CONTINUE); + } + + // If a MIME type is not specified, try to work it out from the file name + if ('' === $type) { + $type = static::filenameToType($path); + } + + $filename = (string) static::mb_pathinfo($path, PATHINFO_BASENAME); + if ('' === $name) { + $name = $filename; + } + + if (!$this->validateEncoding($encoding)) { + throw new Exception($this->lang('encoding') . $encoding); + } + + $this->attachment[] = [ + 0 => $path, + 1 => $filename, + 2 => $name, + 3 => $encoding, + 4 => $type, + 5 => false, // isStringAttachment + 6 => $disposition, + 7 => $name, + ]; + } catch (Exception $exc) { + $this->setError($exc->getMessage()); + $this->edebug($exc->getMessage()); + if ($this->exceptions) { + throw $exc; + } + + return false; + } + + return true; + } + + /** + * Return the array of attachments. + * + * @return array + */ + public function getAttachments() + { + return $this->attachment; + } + + /** + * Attach all file, string, and binary attachments to the message. + * Returns an empty string on failure. + * + * @param string $disposition_type + * @param string $boundary + * + * @throws Exception + * + * @return string + */ + protected function attachAll($disposition_type, $boundary) + { + // Return text of body + $mime = []; + $cidUniq = []; + $incl = []; + + // Add all attachments + foreach ($this->attachment as $attachment) { + // Check if it is a valid disposition_filter + if ($attachment[6] === $disposition_type) { + // Check for string attachment + $string = ''; + $path = ''; + $bString = $attachment[5]; + if ($bString) { + $string = $attachment[0]; + } else { + $path = $attachment[0]; + } + + $inclhash = hash('sha256', serialize($attachment)); + if (in_array($inclhash, $incl, true)) { + continue; + } + $incl[] = $inclhash; + $name = $attachment[2]; + $encoding = $attachment[3]; + $type = $attachment[4]; + $disposition = $attachment[6]; + $cid = $attachment[7]; + if ('inline' === $disposition && array_key_exists($cid, $cidUniq)) { + continue; + } + $cidUniq[$cid] = true; + + $mime[] = sprintf('--%s%s', $boundary, static::$LE); + //Only include a filename property if we have one + if (!empty($name)) { + $mime[] = sprintf( + 'Content-Type: %s; name=%s%s', + $type, + static::quotedString($this->encodeHeader($this->secureHeader($name))), + static::$LE + ); + } else { + $mime[] = sprintf( + 'Content-Type: %s%s', + $type, + static::$LE + ); + } + // RFC1341 part 5 says 7bit is assumed if not specified + if (static::ENCODING_7BIT !== $encoding) { + $mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, static::$LE); + } + + //Only set Content-IDs on inline attachments + if ((string) $cid !== '' && $disposition === 'inline') { + $mime[] = 'Content-ID: <' . $this->encodeHeader($this->secureHeader($cid)) . '>' . static::$LE; + } + + // Allow for bypassing the Content-Disposition header + if (!empty($disposition)) { + $encoded_name = $this->encodeHeader($this->secureHeader($name)); + if (!empty($encoded_name)) { + $mime[] = sprintf( + 'Content-Disposition: %s; filename=%s%s', + $disposition, + static::quotedString($encoded_name), + static::$LE . static::$LE + ); + } else { + $mime[] = sprintf( + 'Content-Disposition: %s%s', + $disposition, + static::$LE . static::$LE + ); + } + } else { + $mime[] = static::$LE; + } + + // Encode as string attachment + if ($bString) { + $mime[] = $this->encodeString($string, $encoding); + } else { + $mime[] = $this->encodeFile($path, $encoding); + } + if ($this->isError()) { + return ''; + } + $mime[] = static::$LE; + } + } + + $mime[] = sprintf('--%s--%s', $boundary, static::$LE); + + return implode('', $mime); + } + + /** + * Encode a file attachment in requested format. + * Returns an empty string on failure. + * + * @param string $path The full path to the file + * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' + * + * @return string + */ + protected function encodeFile($path, $encoding = self::ENCODING_BASE64) + { + try { + if (!static::isPermittedPath($path) || !file_exists($path) || !is_readable($path)) { + throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE); + } + $file_buffer = file_get_contents($path); + if (false === $file_buffer) { + throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE); + } + $file_buffer = $this->encodeString($file_buffer, $encoding); + + return $file_buffer; + } catch (Exception $exc) { + $this->setError($exc->getMessage()); + $this->edebug($exc->getMessage()); + if ($this->exceptions) { + throw $exc; + } + + return ''; + } + } + + /** + * Encode a string in requested format. + * Returns an empty string on failure. + * + * @param string $str The text to encode + * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' + * + * @throws Exception + * + * @return string + */ + public function encodeString($str, $encoding = self::ENCODING_BASE64) + { + $encoded = ''; + switch (strtolower($encoding)) { + case static::ENCODING_BASE64: + $encoded = chunk_split( + base64_encode($str), + static::STD_LINE_LENGTH, + static::$LE + ); + break; + case static::ENCODING_7BIT: + case static::ENCODING_8BIT: + $encoded = static::normalizeBreaks($str); + // Make sure it ends with a line break + if (substr($encoded, -(strlen(static::$LE))) !== static::$LE) { + $encoded .= static::$LE; + } + break; + case static::ENCODING_BINARY: + $encoded = $str; + break; + case static::ENCODING_QUOTED_PRINTABLE: + $encoded = $this->encodeQP($str); + break; + default: + $this->setError($this->lang('encoding') . $encoding); + if ($this->exceptions) { + throw new Exception($this->lang('encoding') . $encoding); + } + break; + } + + return $encoded; + } + + /** + * Encode a header value (not including its label) optimally. + * Picks shortest of Q, B, or none. Result includes folding if needed. + * See RFC822 definitions for phrase, comment and text positions. + * + * @param string $str The header value to encode + * @param string $position What context the string will be used in + * + * @return string + */ + public function encodeHeader($str, $position = 'text') + { + $matchcount = 0; + switch (strtolower($position)) { + case 'phrase': + if (!preg_match('/[\200-\377]/', $str)) { + // Can't use addslashes as we don't know the value of magic_quotes_sybase + $encoded = addcslashes($str, "\0..\37\177\\\""); + if (($str === $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) { + return $encoded; + } + + return "\"$encoded\""; + } + $matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches); + break; + /* @noinspection PhpMissingBreakStatementInspection */ + case 'comment': + $matchcount = preg_match_all('/[()"]/', $str, $matches); + //fallthrough + case 'text': + default: + $matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches); + break; + } + + if ($this->has8bitChars($str)) { + $charset = $this->CharSet; + } else { + $charset = static::CHARSET_ASCII; + } + + // Q/B encoding adds 8 chars and the charset ("` =?
and must not be empty
+ * will look for an image file in $basedir/images/a.png and convert it to inline.
+ * If you don't provide a $basedir, relative paths will be left untouched (and thus probably break in email)
+ * Converts data-uri images into embedded attachments.
+ * If you don't want to apply these transformations to your HTML, just set Body and AltBody directly.
+ *
+ * @param string $message HTML message string
+ * @param string $basedir Absolute path to a base directory to prepend to relative paths to images
+ * @param bool|callable $advanced Whether to use the internal HTML to text converter
+ * or your own custom converter @return string $message The transformed message Body
+ *
+ * @throws Exception
+ *
+ * @see PHPMailer::html2text()
+ */
+ public function msgHTML($message, $basedir = '', $advanced = false)
+ {
+ preg_match_all('/(? 1 && '/' !== substr($basedir, -1)) {
+ // Ensure $basedir has a trailing /
+ $basedir .= '/';
+ }
+ foreach ($images[2] as $imgindex => $url) {
+ // Convert data URIs into embedded images
+ //e.g. "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
+ $match = [];
+ if (preg_match('#^data:(image/(?:jpe?g|gif|png));?(base64)?,(.+)#', $url, $match)) {
+ if (count($match) === 4 && static::ENCODING_BASE64 === $match[2]) {
+ $data = base64_decode($match[3]);
+ } elseif ('' === $match[2]) {
+ $data = rawurldecode($match[3]);
+ } else {
+ //Not recognised so leave it alone
+ continue;
+ }
+ //Hash the decoded data, not the URL, so that the same data-URI image used in multiple places
+ //will only be embedded once, even if it used a different encoding
+ $cid = substr(hash('sha256', $data), 0, 32) . '@phpmailer.0'; // RFC2392 S 2
+
+ if (!$this->cidExists($cid)) {
+ $this->addStringEmbeddedImage(
+ $data,
+ $cid,
+ 'embed' . $imgindex,
+ static::ENCODING_BASE64,
+ $match[1]
+ );
+ }
+ $message = str_replace(
+ $images[0][$imgindex],
+ $images[1][$imgindex] . '="cid:' . $cid . '"',
+ $message
+ );
+ continue;
+ }
+ if (// Only process relative URLs if a basedir is provided (i.e. no absolute local paths)
+ !empty($basedir)
+ // Ignore URLs containing parent dir traversal (..)
+ && (strpos($url, '..') === false)
+ // Do not change urls that are already inline images
+ && 0 !== strpos($url, 'cid:')
+ // Do not change absolute URLs, including anonymous protocol
+ && !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url)
+ ) {
+ $filename = static::mb_pathinfo($url, PATHINFO_BASENAME);
+ $directory = dirname($url);
+ if ('.' === $directory) {
+ $directory = '';
+ }
+ // RFC2392 S 2
+ $cid = substr(hash('sha256', $url), 0, 32) . '@phpmailer.0';
+ if (strlen($basedir) > 1 && '/' !== substr($basedir, -1)) {
+ $basedir .= '/';
+ }
+ if (strlen($directory) > 1 && '/' !== substr($directory, -1)) {
+ $directory .= '/';
+ }
+ if ($this->addEmbeddedImage(
+ $basedir . $directory . $filename,
+ $cid,
+ $filename,
+ static::ENCODING_BASE64,
+ static::_mime_types((string) static::mb_pathinfo($filename, PATHINFO_EXTENSION))
+ )
+ ) {
+ $message = preg_replace(
+ '/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui',
+ $images[1][$imgindex] . '="cid:' . $cid . '"',
+ $message
+ );
+ }
+ }
+ }
+ }
+ $this->isHTML();
+ // Convert all message body line breaks to LE, makes quoted-printable encoding work much better
+ $this->Body = static::normalizeBreaks($message);
+ $this->AltBody = static::normalizeBreaks($this->html2text($message, $advanced));
+ if (!$this->alternativeExists()) {
+ $this->AltBody = 'This is an HTML-only message. To view it, activate HTML in your email application.'
+ . static::$LE;
+ }
+
+ return $this->Body;
+ }
+
+ /**
+ * Convert an HTML string into plain text.
+ * This is used by msgHTML().
+ * Note - older versions of this function used a bundled advanced converter
+ * which was removed for license reasons in #232.
+ * Example usage:
+ *
+ * ```php
+ * // Use default conversion
+ * $plain = $mail->html2text($html);
+ * // Use your own custom converter
+ * $plain = $mail->html2text($html, function($html) {
+ * $converter = new MyHtml2text($html);
+ * return $converter->get_text();
+ * });
+ * ```
+ *
+ * @param string $html The HTML text to convert
+ * @param bool|callable $advanced Any boolean value to use the internal converter,
+ * or provide your own callable for custom conversion
+ *
+ * @return string
+ */
+ public function html2text($html, $advanced = false)
+ {
+ if (is_callable($advanced)) {
+ return $advanced($html);
+ }
+
+ return html_entity_decode(
+ trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))),
+ ENT_QUOTES,
+ $this->CharSet
+ );
+ }
+
+ /**
+ * Get the MIME type for a file extension.
+ *
+ * @param string $ext File extension
+ *
+ * @return string MIME type of file
+ */
+ public static function _mime_types($ext = '')
+ {
+ $mimes = [
+ 'xl' => 'application/excel',
+ 'js' => 'application/javascript',
+ 'hqx' => 'application/mac-binhex40',
+ 'cpt' => 'application/mac-compactpro',
+ 'bin' => 'application/macbinary',
+ 'doc' => 'application/msword',
+ 'word' => 'application/msword',
+ 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+ 'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
+ 'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
+ 'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
+ 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+ 'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide',
+ 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+ 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
+ 'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12',
+ 'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
+ 'class' => 'application/octet-stream',
+ 'dll' => 'application/octet-stream',
+ 'dms' => 'application/octet-stream',
+ 'exe' => 'application/octet-stream',
+ 'lha' => 'application/octet-stream',
+ 'lzh' => 'application/octet-stream',
+ 'psd' => 'application/octet-stream',
+ 'sea' => 'application/octet-stream',
+ 'so' => 'application/octet-stream',
+ 'oda' => 'application/oda',
+ 'pdf' => 'application/pdf',
+ 'ai' => 'application/postscript',
+ 'eps' => 'application/postscript',
+ 'ps' => 'application/postscript',
+ 'smi' => 'application/smil',
+ 'smil' => 'application/smil',
+ 'mif' => 'application/vnd.mif',
+ 'xls' => 'application/vnd.ms-excel',
+ 'ppt' => 'application/vnd.ms-powerpoint',
+ 'wbxml' => 'application/vnd.wap.wbxml',
+ 'wmlc' => 'application/vnd.wap.wmlc',
+ 'dcr' => 'application/x-director',
+ 'dir' => 'application/x-director',
+ 'dxr' => 'application/x-director',
+ 'dvi' => 'application/x-dvi',
+ 'gtar' => 'application/x-gtar',
+ 'php3' => 'application/x-httpd-php',
+ 'php4' => 'application/x-httpd-php',
+ 'php' => 'application/x-httpd-php',
+ 'phtml' => 'application/x-httpd-php',
+ 'phps' => 'application/x-httpd-php-source',
+ 'swf' => 'application/x-shockwave-flash',
+ 'sit' => 'application/x-stuffit',
+ 'tar' => 'application/x-tar',
+ 'tgz' => 'application/x-tar',
+ 'xht' => 'application/xhtml+xml',
+ 'xhtml' => 'application/xhtml+xml',
+ 'zip' => 'application/zip',
+ 'mid' => 'audio/midi',
+ 'midi' => 'audio/midi',
+ 'mp2' => 'audio/mpeg',
+ 'mp3' => 'audio/mpeg',
+ 'm4a' => 'audio/mp4',
+ 'mpga' => 'audio/mpeg',
+ 'aif' => 'audio/x-aiff',
+ 'aifc' => 'audio/x-aiff',
+ 'aiff' => 'audio/x-aiff',
+ 'ram' => 'audio/x-pn-realaudio',
+ 'rm' => 'audio/x-pn-realaudio',
+ 'rpm' => 'audio/x-pn-realaudio-plugin',
+ 'ra' => 'audio/x-realaudio',
+ 'wav' => 'audio/x-wav',
+ 'mka' => 'audio/x-matroska',
+ 'bmp' => 'image/bmp',
+ 'gif' => 'image/gif',
+ 'jpeg' => 'image/jpeg',
+ 'jpe' => 'image/jpeg',
+ 'jpg' => 'image/jpeg',
+ 'png' => 'image/png',
+ 'tiff' => 'image/tiff',
+ 'tif' => 'image/tiff',
+ 'webp' => 'image/webp',
+ 'heif' => 'image/heif',
+ 'heifs' => 'image/heif-sequence',
+ 'heic' => 'image/heic',
+ 'heics' => 'image/heic-sequence',
+ 'eml' => 'message/rfc822',
+ 'css' => 'text/css',
+ 'html' => 'text/html',
+ 'htm' => 'text/html',
+ 'shtml' => 'text/html',
+ 'log' => 'text/plain',
+ 'text' => 'text/plain',
+ 'txt' => 'text/plain',
+ 'rtx' => 'text/richtext',
+ 'rtf' => 'text/rtf',
+ 'vcf' => 'text/vcard',
+ 'vcard' => 'text/vcard',
+ 'ics' => 'text/calendar',
+ 'xml' => 'text/xml',
+ 'xsl' => 'text/xml',
+ 'wmv' => 'video/x-ms-wmv',
+ 'mpeg' => 'video/mpeg',
+ 'mpe' => 'video/mpeg',
+ 'mpg' => 'video/mpeg',
+ 'mp4' => 'video/mp4',
+ 'm4v' => 'video/mp4',
+ 'mov' => 'video/quicktime',
+ 'qt' => 'video/quicktime',
+ 'rv' => 'video/vnd.rn-realvideo',
+ 'avi' => 'video/x-msvideo',
+ 'movie' => 'video/x-sgi-movie',
+ 'webm' => 'video/webm',
+ 'mkv' => 'video/x-matroska',
+ ];
+ $ext = strtolower($ext);
+ if (array_key_exists($ext, $mimes)) {
+ return $mimes[$ext];
+ }
+
+ return 'application/octet-stream';
+ }
+
+ /**
+ * Map a file name to a MIME type.
+ * Defaults to 'application/octet-stream', i.e.. arbitrary binary data.
+ *
+ * @param string $filename A file name or full path, does not need to exist as a file
+ *
+ * @return string
+ */
+ public static function filenameToType($filename)
+ {
+ // In case the path is a URL, strip any query string before getting extension
+ $qpos = strpos($filename, '?');
+ if (false !== $qpos) {
+ $filename = substr($filename, 0, $qpos);
+ }
+ $ext = static::mb_pathinfo($filename, PATHINFO_EXTENSION);
+
+ return static::_mime_types($ext);
+ }
+
+ /**
+ * Multi-byte-safe pathinfo replacement.
+ * Drop-in replacement for pathinfo(), but multibyte- and cross-platform-safe.
+ *
+ * @see http://www.php.net/manual/en/function.pathinfo.php#107461
+ *
+ * @param string $path A filename or path, does not need to exist as a file
+ * @param int|string $options Either a PATHINFO_* constant,
+ * or a string name to return only the specified piece
+ *
+ * @return string|array
+ */
+ public static function mb_pathinfo($path, $options = null)
+ {
+ $ret = ['dirname' => '', 'basename' => '', 'extension' => '', 'filename' => ''];
+ $pathinfo = [];
+ if (preg_match('#^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^.\\\\/]+?)|))[\\\\/.]*$#m', $path, $pathinfo)) {
+ if (array_key_exists(1, $pathinfo)) {
+ $ret['dirname'] = $pathinfo[1];
+ }
+ if (array_key_exists(2, $pathinfo)) {
+ $ret['basename'] = $pathinfo[2];
+ }
+ if (array_key_exists(5, $pathinfo)) {
+ $ret['extension'] = $pathinfo[5];
+ }
+ if (array_key_exists(3, $pathinfo)) {
+ $ret['filename'] = $pathinfo[3];
+ }
+ }
+ switch ($options) {
+ case PATHINFO_DIRNAME:
+ case 'dirname':
+ return $ret['dirname'];
+ case PATHINFO_BASENAME:
+ case 'basename':
+ return $ret['basename'];
+ case PATHINFO_EXTENSION:
+ case 'extension':
+ return $ret['extension'];
+ case PATHINFO_FILENAME:
+ case 'filename':
+ return $ret['filename'];
+ default:
+ return $ret;
+ }
+ }
+
+ /**
+ * Set or reset instance properties.
+ * You should avoid this function - it's more verbose, less efficient, more error-prone and
+ * harder to debug than setting properties directly.
+ * Usage Example:
+ * `$mail->set('SMTPSecure', static::ENCRYPTION_STARTTLS);`
+ * is the same as:
+ * `$mail->SMTPSecure = static::ENCRYPTION_STARTTLS;`.
+ *
+ * @param string $name The property name to set
+ * @param mixed $value The value to set the property to
+ *
+ * @return bool
+ */
+ public function set($name, $value = '')
+ {
+ if (property_exists($this, $name)) {
+ $this->$name = $value;
+
+ return true;
+ }
+ $this->setError($this->lang('variable_set') . $name);
+
+ return false;
+ }
+
+ /**
+ * Strip newlines to prevent header injection.
+ *
+ * @param string $str
+ *
+ * @return string
+ */
+ public function secureHeader($str)
+ {
+ return trim(str_replace(["\r", "\n"], '', $str));
+ }
+
+ /**
+ * Normalize line breaks in a string.
+ * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format.
+ * Defaults to CRLF (for message bodies) and preserves consecutive breaks.
+ *
+ * @param string $text
+ * @param string $breaktype What kind of line break to use; defaults to static::$LE
+ *
+ * @return string
+ */
+ public static function normalizeBreaks($text, $breaktype = null)
+ {
+ if (null === $breaktype) {
+ $breaktype = static::$LE;
+ }
+ // Normalise to \n
+ $text = str_replace([self::CRLF, "\r"], "\n", $text);
+ // Now convert LE as needed
+ if ("\n" !== $breaktype) {
+ $text = str_replace("\n", $breaktype, $text);
+ }
+
+ return $text;
+ }
+
+ /**
+ * Remove trailing breaks from a string.
+ *
+ * @param string $text
+ *
+ * @return string The text to remove breaks from
+ */
+ public static function stripTrailingWSP($text)
+ {
+ return rtrim($text, " \r\n\t");
+ }
+
+ /**
+ * Return the current line break format string.
+ *
+ * @return string
+ */
+ public static function getLE()
+ {
+ return static::$LE;
+ }
+
+ /**
+ * Set the line break format string, e.g. "\r\n".
+ *
+ * @param string $le
+ */
+ protected static function setLE($le)
+ {
+ static::$LE = $le;
+ }
+
+ /**
+ * Set the public and private key files and password for S/MIME signing.
+ *
+ * @param string $cert_filename
+ * @param string $key_filename
+ * @param string $key_pass Password for private key
+ * @param string $extracerts_filename Optional path to chain certificate
+ */
+ public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '')
+ {
+ $this->sign_cert_file = $cert_filename;
+ $this->sign_key_file = $key_filename;
+ $this->sign_key_pass = $key_pass;
+ $this->sign_extracerts_file = $extracerts_filename;
+ }
+
+ /**
+ * Quoted-Printable-encode a DKIM header.
+ *
+ * @param string $txt
+ *
+ * @return string
+ */
+ public function DKIM_QP($txt)
+ {
+ $line = '';
+ $len = strlen($txt);
+ for ($i = 0; $i < $len; ++$i) {
+ $ord = ord($txt[$i]);
+ if (((0x21 <= $ord) && ($ord <= 0x3A)) || $ord === 0x3C || ((0x3E <= $ord) && ($ord <= 0x7E))) {
+ $line .= $txt[$i];
+ } else {
+ $line .= '=' . sprintf('%02X', $ord);
+ }
+ }
+
+ return $line;
+ }
+
+ /**
+ * Generate a DKIM signature.
+ *
+ * @param string $signHeader
+ *
+ * @throws Exception
+ *
+ * @return string The DKIM signature value
+ */
+ public function DKIM_Sign($signHeader)
+ {
+ if (!defined('PKCS7_TEXT')) {
+ if ($this->exceptions) {
+ throw new Exception($this->lang('extension_missing') . 'openssl');
+ }
+
+ return '';
+ }
+ $privKeyStr = !empty($this->DKIM_private_string) ?
+ $this->DKIM_private_string :
+ file_get_contents($this->DKIM_private);
+ if ('' !== $this->DKIM_passphrase) {
+ $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
+ } else {
+ $privKey = openssl_pkey_get_private($privKeyStr);
+ }
+ if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) {
+ openssl_pkey_free($privKey);
+
+ return base64_encode($signature);
+ }
+ openssl_pkey_free($privKey);
+
+ return '';
+ }
+
+ /**
+ * Generate a DKIM canonicalization header.
+ * Uses the 'relaxed' algorithm from RFC6376 section 3.4.2.
+ * Canonicalized headers should *always* use CRLF, regardless of mailer setting.
+ *
+ * @see https://tools.ietf.org/html/rfc6376#section-3.4.2
+ *
+ * @param string $signHeader Header
+ *
+ * @return string
+ */
+ public function DKIM_HeaderC($signHeader)
+ {
+ //Normalize breaks to CRLF (regardless of the mailer)
+ $signHeader = static::normalizeBreaks($signHeader, self::CRLF);
+ //Unfold header lines
+ //Note PCRE \s is too broad a definition of whitespace; RFC5322 defines it as `[ \t]`
+ //@see https://tools.ietf.org/html/rfc5322#section-2.2
+ //That means this may break if you do something daft like put vertical tabs in your headers.
+ $signHeader = preg_replace('/\r\n[ \t]+/', ' ', $signHeader);
+ //Break headers out into an array
+ $lines = explode(self::CRLF, $signHeader);
+ foreach ($lines as $key => $line) {
+ //If the header is missing a :, skip it as it's invalid
+ //This is likely to happen because the explode() above will also split
+ //on the trailing LE, leaving an empty line
+ if (strpos($line, ':') === false) {
+ continue;
+ }
+ list($heading, $value) = explode(':', $line, 2);
+ //Lower-case header name
+ $heading = strtolower($heading);
+ //Collapse white space within the value, also convert WSP to space
+ $value = preg_replace('/[ \t]+/', ' ', $value);
+ //RFC6376 is slightly unclear here - it says to delete space at the *end* of each value
+ //But then says to delete space before and after the colon.
+ //Net result is the same as trimming both ends of the value.
+ //By elimination, the same applies to the field name
+ $lines[$key] = trim($heading, " \t") . ':' . trim($value, " \t");
+ }
+
+ return implode(self::CRLF, $lines);
+ }
+
+ /**
+ * Generate a DKIM canonicalization body.
+ * Uses the 'simple' algorithm from RFC6376 section 3.4.3.
+ * Canonicalized bodies should *always* use CRLF, regardless of mailer setting.
+ *
+ * @see https://tools.ietf.org/html/rfc6376#section-3.4.3
+ *
+ * @param string $body Message Body
+ *
+ * @return string
+ */
+ public function DKIM_BodyC($body)
+ {
+ if (empty($body)) {
+ return self::CRLF;
+ }
+ // Normalize line endings to CRLF
+ $body = static::normalizeBreaks($body, self::CRLF);
+
+ //Reduce multiple trailing line breaks to a single one
+ return static::stripTrailingWSP($body) . self::CRLF;
+ }
+
+ /**
+ * Create the DKIM header and body in a new message header.
+ *
+ * @param string $headers_line Header lines
+ * @param string $subject Subject
+ * @param string $body Body
+ *
+ * @throws Exception
+ *
+ * @return string
+ */
+ public function DKIM_Add($headers_line, $subject, $body)
+ {
+ $DKIMsignatureType = 'rsa-sha256'; // Signature & hash algorithms
+ $DKIMcanonicalization = 'relaxed/simple'; // Canonicalization methods of header & body
+ $DKIMquery = 'dns/txt'; // Query method
+ $DKIMtime = time();
+ //Always sign these headers without being asked
+ //Recommended list from https://tools.ietf.org/html/rfc6376#section-5.4.1
+ $autoSignHeaders = [
+ 'from',
+ 'to',
+ 'cc',
+ 'date',
+ 'subject',
+ 'reply-to',
+ 'message-id',
+ 'content-type',
+ 'mime-version',
+ 'x-mailer',
+ ];
+ if (stripos($headers_line, 'Subject') === false) {
+ $headers_line .= 'Subject: ' . $subject . static::$LE;
+ }
+ $headerLines = explode(static::$LE, $headers_line);
+ $currentHeaderLabel = '';
+ $currentHeaderValue = '';
+ $parsedHeaders = [];
+ $headerLineIndex = 0;
+ $headerLineCount = count($headerLines);
+ foreach ($headerLines as $headerLine) {
+ $matches = [];
+ if (preg_match('/^([^ \t]*?)(?::[ \t]*)(.*)$/', $headerLine, $matches)) {
+ if ($currentHeaderLabel !== '') {
+ //We were previously in another header; This is the start of a new header, so save the previous one
+ $parsedHeaders[] = ['label' => $currentHeaderLabel, 'value' => $currentHeaderValue];
+ }
+ $currentHeaderLabel = $matches[1];
+ $currentHeaderValue = $matches[2];
+ } elseif (preg_match('/^[ \t]+(.*)$/', $headerLine, $matches)) {
+ //This is a folded continuation of the current header, so unfold it
+ $currentHeaderValue .= ' ' . $matches[1];
+ }
+ ++$headerLineIndex;
+ if ($headerLineIndex >= $headerLineCount) {
+ //This was the last line, so finish off this header
+ $parsedHeaders[] = ['label' => $currentHeaderLabel, 'value' => $currentHeaderValue];
+ }
+ }
+ $copiedHeaders = [];
+ $headersToSignKeys = [];
+ $headersToSign = [];
+ foreach ($parsedHeaders as $header) {
+ //Is this header one that must be included in the DKIM signature?
+ if (in_array(strtolower($header['label']), $autoSignHeaders, true)) {
+ $headersToSignKeys[] = $header['label'];
+ $headersToSign[] = $header['label'] . ': ' . $header['value'];
+ if ($this->DKIM_copyHeaderFields) {
+ $copiedHeaders[] = $header['label'] . ':' . //Note no space after this, as per RFC
+ str_replace('|', '=7C', $this->DKIM_QP($header['value']));
+ }
+ continue;
+ }
+ //Is this an extra custom header we've been asked to sign?
+ if (in_array($header['label'], $this->DKIM_extraHeaders, true)) {
+ //Find its value in custom headers
+ foreach ($this->CustomHeader as $customHeader) {
+ if ($customHeader[0] === $header['label']) {
+ $headersToSignKeys[] = $header['label'];
+ $headersToSign[] = $header['label'] . ': ' . $header['value'];
+ if ($this->DKIM_copyHeaderFields) {
+ $copiedHeaders[] = $header['label'] . ':' . //Note no space after this, as per RFC
+ str_replace('|', '=7C', $this->DKIM_QP($header['value']));
+ }
+ //Skip straight to the next header
+ continue 2;
+ }
+ }
+ }
+ }
+ $copiedHeaderFields = '';
+ if ($this->DKIM_copyHeaderFields && count($copiedHeaders) > 0) {
+ //Assemble a DKIM 'z' tag
+ $copiedHeaderFields = ' z=';
+ $first = true;
+ foreach ($copiedHeaders as $copiedHeader) {
+ if (!$first) {
+ $copiedHeaderFields .= static::$LE . ' |';
+ }
+ //Fold long values
+ if (strlen($copiedHeader) > self::STD_LINE_LENGTH - 3) {
+ $copiedHeaderFields .= substr(
+ chunk_split($copiedHeader, self::STD_LINE_LENGTH - 3, static::$LE . self::FWS),
+ 0,
+ -strlen(static::$LE . self::FWS)
+ );
+ } else {
+ $copiedHeaderFields .= $copiedHeader;
+ }
+ $first = false;
+ }
+ $copiedHeaderFields .= ';' . static::$LE;
+ }
+ $headerKeys = ' h=' . implode(':', $headersToSignKeys) . ';' . static::$LE;
+ $headerValues = implode(static::$LE, $headersToSign);
+ $body = $this->DKIM_BodyC($body);
+ $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body))); // Base64 of packed binary SHA-256 hash of body
+ $ident = '';
+ if ('' !== $this->DKIM_identity) {
+ $ident = ' i=' . $this->DKIM_identity . ';' . static::$LE;
+ }
+ //The DKIM-Signature header is included in the signature *except for* the value of the `b` tag
+ //which is appended after calculating the signature
+ //https://tools.ietf.org/html/rfc6376#section-3.5
+ $dkimSignatureHeader = 'DKIM-Signature: v=1;' .
+ ' d=' . $this->DKIM_domain . ';' .
+ ' s=' . $this->DKIM_selector . ';' . static::$LE .
+ ' a=' . $DKIMsignatureType . ';' .
+ ' q=' . $DKIMquery . ';' .
+ ' t=' . $DKIMtime . ';' .
+ ' c=' . $DKIMcanonicalization . ';' . static::$LE .
+ $headerKeys .
+ $ident .
+ $copiedHeaderFields .
+ ' bh=' . $DKIMb64 . ';' . static::$LE .
+ ' b=';
+ //Canonicalize the set of headers
+ $canonicalizedHeaders = $this->DKIM_HeaderC(
+ $headerValues . static::$LE . $dkimSignatureHeader
+ );
+ $signature = $this->DKIM_Sign($canonicalizedHeaders);
+ $signature = trim(chunk_split($signature, self::STD_LINE_LENGTH - 3, static::$LE . self::FWS));
+
+ return static::normalizeBreaks($dkimSignatureHeader . $signature);
+ }
+
+ /**
+ * Detect if a string contains a line longer than the maximum line length
+ * allowed by RFC 2822 section 2.1.1.
+ *
+ * @param string $str
+ *
+ * @return bool
+ */
+ public static function hasLineLongerThanMax($str)
+ {
+ return (bool) preg_match('/^(.{' . (self::MAX_LINE_LENGTH + strlen(static::$LE)) . ',})/m', $str);
+ }
+
+ /**
+ * If a string contains any "special" characters, double-quote the name,
+ * and escape any double quotes with a backslash.
+ *
+ * @param string $str
+ *
+ * @return string
+ *
+ * @see RFC822 3.4.1
+ */
+ public static function quotedString($str)
+ {
+ if (preg_match('/[ ()<>@,;:"\/\[\]?=]/', $str)) {
+ //If the string contains any of these chars, it must be double-quoted
+ //and any double quotes must be escaped with a backslash
+ return '"' . str_replace('"', '\\"', $str) . '"';
+ }
+
+ //Return the string untouched, it doesn't need quoting
+ return $str;
+ }
+
+ /**
+ * Allows for public read access to 'to' property.
+ * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+ *
+ * @return array
+ */
+ public function getToAddresses()
+ {
+ return $this->to;
+ }
+
+ /**
+ * Allows for public read access to 'cc' property.
+ * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+ *
+ * @return array
+ */
+ public function getCcAddresses()
+ {
+ return $this->cc;
+ }
+
+ /**
+ * Allows for public read access to 'bcc' property.
+ * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+ *
+ * @return array
+ */
+ public function getBccAddresses()
+ {
+ return $this->bcc;
+ }
+
+ /**
+ * Allows for public read access to 'ReplyTo' property.
+ * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+ *
+ * @return array
+ */
+ public function getReplyToAddresses()
+ {
+ return $this->ReplyTo;
+ }
+
+ /**
+ * Allows for public read access to 'all_recipients' property.
+ * Before the send() call, queued addresses (i.e. with IDN) are not yet included.
+ *
+ * @return array
+ */
+ public function getAllRecipientAddresses()
+ {
+ return $this->all_recipients;
+ }
+
+ /**
+ * Perform a callback.
+ *
+ * @param bool $isSent
+ * @param array $to
+ * @param array $cc
+ * @param array $bcc
+ * @param string $subject
+ * @param string $body
+ * @param string $from
+ * @param array $extra
+ */
+ protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from, $extra)
+ {
+ if (!empty($this->action_function) && is_callable($this->action_function)) {
+ call_user_func($this->action_function, $isSent, $to, $cc, $bcc, $subject, $body, $from, $extra);
+ }
+ }
+
+ /**
+ * Get the OAuth instance.
+ *
+ * @return OAuth
+ */
+ public function getOAuth()
+ {
+ return $this->oauth;
+ }
+
+ /**
+ * Set an OAuth instance.
+ */
+ public function setOAuth(OAuth $oauth)
+ {
+ $this->oauth = $oauth;
+ }
+}
diff --git a/src/wp-includes/PHPMailer/SMTP.php b/src/wp-includes/PHPMailer/SMTP.php
new file mode 100644
index 0000000000..aa5555149a
--- /dev/null
+++ b/src/wp-includes/PHPMailer/SMTP.php
@@ -0,0 +1,1371 @@
+
+ * @author Jim Jagielski (jimjag) `, appropriate for browser output + * * `error_log` Output to error log as configured in php.ini + * Alternatively, you can provide a callable expecting two params: a message string and the debug level: + * + * ```php + * $smtp->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";}; + * ``` + * + * Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug` + * level output is used: + * + * ```php + * $mail->Debugoutput = new myPsr3Logger; + * ``` + * + * @var string|callable|\Psr\Log\LoggerInterface + */ + public $Debugoutput = 'echo'; + + /** + * Whether to use VERP. + * + * @see http://en.wikipedia.org/wiki/Variable_envelope_return_path + * @see http://www.postfix.org/VERP_README.html Info on VERP + * + * @var bool + */ + public $do_verp = false; + + /** + * The timeout value for connection, in seconds. + * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2. + * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure. + * + * @see http://tools.ietf.org/html/rfc2821#section-4.5.3.2 + * + * @var int + */ + public $Timeout = 300; + + /** + * How long to wait for commands to complete, in seconds. + * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2. + * + * @var int + */ + public $Timelimit = 300; + + /** + * Patterns to extract an SMTP transaction id from reply to a DATA command. + * The first capture group in each regex will be used as the ID. + * MS ESMTP returns the message ID, which may not be correct for internal tracking. + * + * @var string[] + */ + protected $smtp_transaction_id_patterns = [ + 'exim' => '/[\d]{3} OK id=(.*)/', + 'sendmail' => '/[\d]{3} 2.0.0 (.*) Message/', + 'postfix' => '/[\d]{3} 2.0.0 Ok: queued as (.*)/', + 'Microsoft_ESMTP' => '/[0-9]{3} 2.[\d].0 (.*)@(?:.*) Queued mail for delivery/', + 'Amazon_SES' => '/[\d]{3} Ok (.*)/', + 'SendGrid' => '/[\d]{3} Ok: queued as (.*)/', + 'CampaignMonitor' => '/[\d]{3} 2.0.0 OK:([a-zA-Z\d]{48})/', + ]; + + /** + * The last transaction ID issued in response to a DATA command, + * if one was detected. + * + * @var string|bool|null + */ + protected $last_smtp_transaction_id; + + /** + * The socket for the server connection. + * + * @var ?resource + */ + protected $smtp_conn; + + /** + * Error information, if any, for the last SMTP command. + * + * @var array + */ + protected $error = [ + 'error' => '', + 'detail' => '', + 'smtp_code' => '', + 'smtp_code_ex' => '', + ]; + + /** + * The reply the server sent to us for HELO. + * If null, no HELO string has yet been received. + * + * @var string|null + */ + protected $helo_rply; + + /** + * The set of SMTP extensions sent in reply to EHLO command. + * Indexes of the array are extension names. + * Value at index 'HELO' or 'EHLO' (according to command that was sent) + * represents the server name. In case of HELO it is the only element of the array. + * Other values can be boolean TRUE or an array containing extension options. + * If null, no HELO/EHLO string has yet been received. + * + * @var array|null + */ + protected $server_caps; + + /** + * The most recent reply received from the server. + * + * @var string + */ + protected $last_reply = ''; + + /** + * Output debugging info via a user-selected method. + * + * @param string $str Debug string to output + * @param int $level The debug level of this message; see DEBUG_* constants + * + * @see SMTP::$Debugoutput + * @see SMTP::$do_debug + */ + protected function edebug($str, $level = 0) + { + if ($level > $this->do_debug) { + return; + } + //Is this a PSR-3 logger? + if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) { + $this->Debugoutput->debug($str); + + return; + } + //Avoid clash with built-in function names + if (is_callable($this->Debugoutput) && !in_array($this->Debugoutput, ['error_log', 'html', 'echo'])) { + call_user_func($this->Debugoutput, $str, $level); + + return; + } + switch ($this->Debugoutput) { + case 'error_log': + //Don't output, just log + error_log($str); + break; + case 'html': + //Cleans up output a bit for a better looking, HTML-safe output + echo gmdate('Y-m-d H:i:s'), ' ', htmlentities( + preg_replace('/[\r\n]+/', '', $str), + ENT_QUOTES, + 'UTF-8' + ), "
\n"; + break; + case 'echo': + default: + //Normalize line breaks + $str = preg_replace('/\r\n|\r/m', "\n", $str); + echo gmdate('Y-m-d H:i:s'), + "\t", + //Trim trailing space + trim( + //Indent for readability, except for trailing break + str_replace( + "\n", + "\n \t ", + trim($str) + ) + ), + "\n"; + } + } + + /** + * Connect to an SMTP server. + * + * @param string $host SMTP server IP or host name + * @param int $port The port number to connect to + * @param int $timeout How long to wait for the connection to open + * @param array $options An array of options for stream_context_create() + * + * @return bool + */ + public function connect($host, $port = null, $timeout = 30, $options = []) + { + static $streamok; + //This is enabled by default since 5.0.0 but some providers disable it + //Check this once and cache the result + if (null === $streamok) { + $streamok = function_exists('stream_socket_client'); + } + // Clear errors to avoid confusion + $this->setError(''); + // Make sure we are __not__ connected + if ($this->connected()) { + // Already connected, generate error + $this->setError('Already connected to a server'); + + return false; + } + if (empty($port)) { + $port = self::DEFAULT_PORT; + } + // Connect to the SMTP server + $this->edebug( + "Connection: opening to $host:$port, timeout=$timeout, options=" . + (count($options) > 0 ? var_export($options, true) : 'array()'), + self::DEBUG_CONNECTION + ); + $errno = 0; + $errstr = ''; + if ($streamok) { + $socket_context = stream_context_create($options); + set_error_handler([$this, 'errorHandler']); + $this->smtp_conn = stream_socket_client( + $host . ':' . $port, + $errno, + $errstr, + $timeout, + STREAM_CLIENT_CONNECT, + $socket_context + ); + restore_error_handler(); + } else { + //Fall back to fsockopen which should work in more places, but is missing some features + $this->edebug( + 'Connection: stream_socket_client not available, falling back to fsockopen', + self::DEBUG_CONNECTION + ); + set_error_handler([$this, 'errorHandler']); + $this->smtp_conn = fsockopen( + $host, + $port, + $errno, + $errstr, + $timeout + ); + restore_error_handler(); + } + // Verify we connected properly + if (!is_resource($this->smtp_conn)) { + $this->setError( + 'Failed to connect to server', + '', + (string) $errno, + $errstr + ); + $this->edebug( + 'SMTP ERROR: ' . $this->error['error'] + . ": $errstr ($errno)", + self::DEBUG_CLIENT + ); + + return false; + } + $this->edebug('Connection: opened', self::DEBUG_CONNECTION); + // SMTP server can take longer to respond, give longer timeout for first read + // Windows does not have support for this timeout function + if (strpos(PHP_OS, 'WIN') !== 0) { + $max = (int) ini_get('max_execution_time'); + // Don't bother if unlimited + if (0 !== $max && $timeout > $max) { + @set_time_limit($timeout); + } + stream_set_timeout($this->smtp_conn, $timeout, 0); + } + // Get any announcement + $announce = $this->get_lines(); + $this->edebug('SERVER -> CLIENT: ' . $announce, self::DEBUG_SERVER); + + return true; + } + + /** + * Initiate a TLS (encrypted) session. + * + * @return bool + */ + public function startTLS() + { + if (!$this->sendCommand('STARTTLS', 'STARTTLS', 220)) { + return false; + } + + //Allow the best TLS version(s) we can + $crypto_method = STREAM_CRYPTO_METHOD_TLS_CLIENT; + + //PHP 5.6.7 dropped inclusion of TLS 1.1 and 1.2 in STREAM_CRYPTO_METHOD_TLS_CLIENT + //so add them back in manually if we can + if (defined('STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT')) { + $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT; + $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT; + } + + // Begin encrypted connection + set_error_handler([$this, 'errorHandler']); + $crypto_ok = stream_socket_enable_crypto( + $this->smtp_conn, + true, + $crypto_method + ); + restore_error_handler(); + + return (bool) $crypto_ok; + } + + /** + * Perform SMTP authentication. + * Must be run after hello(). + * + * @see hello() + * + * @param string $username The user name + * @param string $password The password + * @param string $authtype The auth type (CRAM-MD5, PLAIN, LOGIN, XOAUTH2) + * @param OAuth $OAuth An optional OAuth instance for XOAUTH2 authentication + * + * @return bool True if successfully authenticated + */ + public function authenticate( + $username, + $password, + $authtype = null, + $OAuth = null + ) { + if (!$this->server_caps) { + $this->setError('Authentication is not allowed before HELO/EHLO'); + + return false; + } + + if (array_key_exists('EHLO', $this->server_caps)) { + // SMTP extensions are available; try to find a proper authentication method + if (!array_key_exists('AUTH', $this->server_caps)) { + $this->setError('Authentication is not allowed at this stage'); + // 'at this stage' means that auth may be allowed after the stage changes + // e.g. after STARTTLS + + return false; + } + + $this->edebug('Auth method requested: ' . ($authtype ?: 'UNSPECIFIED'), self::DEBUG_LOWLEVEL); + $this->edebug( + 'Auth methods available on the server: ' . implode(',', $this->server_caps['AUTH']), + self::DEBUG_LOWLEVEL + ); + + //If we have requested a specific auth type, check the server supports it before trying others + if (null !== $authtype && !in_array($authtype, $this->server_caps['AUTH'], true)) { + $this->edebug('Requested auth method not available: ' . $authtype, self::DEBUG_LOWLEVEL); + $authtype = null; + } + + if (empty($authtype)) { + //If no auth mechanism is specified, attempt to use these, in this order + //Try CRAM-MD5 first as it's more secure than the others + foreach (['CRAM-MD5', 'LOGIN', 'PLAIN', 'XOAUTH2'] as $method) { + if (in_array($method, $this->server_caps['AUTH'], true)) { + $authtype = $method; + break; + } + } + if (empty($authtype)) { + $this->setError('No supported authentication methods found'); + + return false; + } + $this->edebug('Auth method selected: ' . $authtype, self::DEBUG_LOWLEVEL); + } + + if (!in_array($authtype, $this->server_caps['AUTH'], true)) { + $this->setError("The requested authentication method \"$authtype\" is not supported by the server"); + + return false; + } + } elseif (empty($authtype)) { + $authtype = 'LOGIN'; + } + switch ($authtype) { + case 'PLAIN': + // Start authentication + if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) { + return false; + } + // Send encoded username and password + if (!$this->sendCommand( + 'User & Password', + base64_encode("\0" . $username . "\0" . $password), + 235 + ) + ) { + return false; + } + break; + case 'LOGIN': + // Start authentication + if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) { + return false; + } + if (!$this->sendCommand('Username', base64_encode($username), 334)) { + return false; + } + if (!$this->sendCommand('Password', base64_encode($password), 235)) { + return false; + } + break; + case 'CRAM-MD5': + // Start authentication + if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) { + return false; + } + // Get the challenge + $challenge = base64_decode(substr($this->last_reply, 4)); + + // Build the response + $response = $username . ' ' . $this->hmac($challenge, $password); + + // send encoded credentials + return $this->sendCommand('Username', base64_encode($response), 235); + case 'XOAUTH2': + //The OAuth instance must be set up prior to requesting auth. + if (null === $OAuth) { + return false; + } + $oauth = $OAuth->getOauth64(); + + // Start authentication + if (!$this->sendCommand('AUTH', 'AUTH XOAUTH2 ' . $oauth, 235)) { + return false; + } + break; + default: + $this->setError("Authentication method \"$authtype\" is not supported"); + + return false; + } + + return true; + } + + /** + * Calculate an MD5 HMAC hash. + * Works like hash_hmac('md5', $data, $key) + * in case that function is not available. + * + * @param string $data The data to hash + * @param string $key The key to hash with + * + * @return string + */ + protected function hmac($data, $key) + { + if (function_exists('hash_hmac')) { + return hash_hmac('md5', $data, $key); + } + + // The following borrowed from + // http://php.net/manual/en/function.mhash.php#27225 + + // RFC 2104 HMAC implementation for php. + // Creates an md5 HMAC. + // Eliminates the need to install mhash to compute a HMAC + // by Lance Rushing + + $bytelen = 64; // byte length for md5 + if (strlen($key) > $bytelen) { + $key = pack('H*', md5($key)); + } + $key = str_pad($key, $bytelen, chr(0x00)); + $ipad = str_pad('', $bytelen, chr(0x36)); + $opad = str_pad('', $bytelen, chr(0x5c)); + $k_ipad = $key ^ $ipad; + $k_opad = $key ^ $opad; + + return md5($k_opad . pack('H*', md5($k_ipad . $data))); + } + + /** + * Check connection state. + * + * @return bool True if connected + */ + public function connected() + { + if (is_resource($this->smtp_conn)) { + $sock_status = stream_get_meta_data($this->smtp_conn); + if ($sock_status['eof']) { + // The socket is valid but we are not connected + $this->edebug( + 'SMTP NOTICE: EOF caught while checking if connected', + self::DEBUG_CLIENT + ); + $this->close(); + + return false; + } + + return true; // everything looks good + } + + return false; + } + + /** + * Close the socket and clean up the state of the class. + * Don't use this function without first trying to use QUIT. + * + * @see quit() + */ + public function close() + { + $this->setError(''); + $this->server_caps = null; + $this->helo_rply = null; + if (is_resource($this->smtp_conn)) { + // close the connection and cleanup + fclose($this->smtp_conn); + $this->smtp_conn = null; //Makes for cleaner serialization + $this->edebug('Connection: closed', self::DEBUG_CONNECTION); + } + } + + /** + * Send an SMTP DATA command. + * Issues a data command and sends the msg_data to the server, + * finializing the mail transaction. $msg_data is the message + * that is to be send with the headers. Each header needs to be + * on a single line followed by a
`, appropriate for browser output - * * `error_log` Output to error log as configured in php.ini - * - * Alternatively, you can provide a callable expecting two params: a message string and the debug level: - *
- * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
- *
- * @var string|callable
- * @see SMTP::$Debugoutput
- */
- public $Debugoutput = 'echo';
-
- /**
- * Whether to keep SMTP connection open after each message.
- * If this is set to true then to close the connection
- * requires an explicit call to smtpClose().
- * @var boolean
- */
- public $SMTPKeepAlive = false;
-
- /**
- * Whether to split multiple to addresses into multiple messages
- * or send them all in one message.
- * Only supported in `mail` and `sendmail` transports, not in SMTP.
- * @var boolean
- */
- public $SingleTo = false;
-
- /**
- * Storage for addresses when SingleTo is enabled.
- * @var array
- * @TODO This should really not be public
- */
- public $SingleToArray = array();
-
- /**
- * Whether to generate VERP addresses on send.
- * Only applicable when sending via SMTP.
- * @link https://en.wikipedia.org/wiki/Variable_envelope_return_path
- * @link http://www.postfix.org/VERP_README.html Postfix VERP info
- * @var boolean
- */
- public $do_verp = false;
-
- /**
- * Whether to allow sending messages with an empty body.
- * @var boolean
- */
- public $AllowEmpty = false;
-
- /**
- * The default line ending.
- * @note The default remains "\n". We force CRLF where we know
- * it must be used via self::CRLF.
- * @var string
- */
- public $LE = "\n";
-
- /**
- * DKIM selector.
- * @var string
- */
- public $DKIM_selector = '';
-
- /**
- * DKIM Identity.
- * Usually the email address used as the source of the email.
- * @var string
- */
- public $DKIM_identity = '';
-
- /**
- * DKIM passphrase.
- * Used if your key is encrypted.
- * @var string
- */
- public $DKIM_passphrase = '';
-
- /**
- * DKIM signing domain name.
- * @example 'example.com'
- * @var string
- */
- public $DKIM_domain = '';
-
- /**
- * DKIM private key file path.
- * @var string
- */
- public $DKIM_private = '';
-
- /**
- * DKIM private key string.
- * If set, takes precedence over `$DKIM_private`.
- * @var string
- */
- public $DKIM_private_string = '';
-
- /**
- * Callback Action function name.
- *
- * The function that handles the result of the send email action.
- * It is called out by send() for each email sent.
- *
- * Value can be any php callable: http://www.php.net/is_callable
- *
- * Parameters:
- * boolean $result result of the send action
- * array $to email addresses of the recipients
- * array $cc cc email addresses
- * array $bcc bcc email addresses
- * string $subject the subject
- * string $body the email body
- * string $from email address of sender
- * @var string
- */
- public $action_function = '';
-
- /**
- * What to put in the X-Mailer header.
- * Options: An empty string for PHPMailer default, whitespace for none, or a string to use
- * @var string
- */
- public $XMailer = '';
-
- /**
- * Which validator to use by default when validating email addresses.
- * May be a callable to inject your own validator, but there are several built-in validators.
- * @see PHPMailer::validateAddress()
- * @var string|callable
- * @static
- */
- public static $validator = 'auto';
-
- /**
- * An instance of the SMTP sender class.
- * @var SMTP
- * @access protected
- */
- protected $smtp = null;
-
- /**
- * The array of 'to' names and addresses.
- * @var array
- * @access protected
- */
- protected $to = array();
-
- /**
- * The array of 'cc' names and addresses.
- * @var array
- * @access protected
- */
- protected $cc = array();
-
- /**
- * The array of 'bcc' names and addresses.
- * @var array
- * @access protected
- */
- protected $bcc = array();
-
- /**
- * The array of reply-to names and addresses.
- * @var array
- * @access protected
- */
- protected $ReplyTo = array();
-
- /**
- * An array of all kinds of addresses.
- * Includes all of $to, $cc, $bcc
- * @var array
- * @access protected
- * @see PHPMailer::$to @see PHPMailer::$cc @see PHPMailer::$bcc
- */
- protected $all_recipients = array();
-
- /**
- * An array of names and addresses queued for validation.
- * In send(), valid and non duplicate entries are moved to $all_recipients
- * and one of $to, $cc, or $bcc.
- * This array is used only for addresses with IDN.
- * @var array
- * @access protected
- * @see PHPMailer::$to @see PHPMailer::$cc @see PHPMailer::$bcc
- * @see PHPMailer::$all_recipients
- */
- protected $RecipientsQueue = array();
-
- /**
- * An array of reply-to names and addresses queued for validation.
- * In send(), valid and non duplicate entries are moved to $ReplyTo.
- * This array is used only for addresses with IDN.
- * @var array
- * @access protected
- * @see PHPMailer::$ReplyTo
- */
- protected $ReplyToQueue = array();
-
- /**
- * The array of attachments.
- * @var array
- * @access protected
- */
- protected $attachment = array();
-
- /**
- * The array of custom headers.
- * @var array
- * @access protected
- */
- protected $CustomHeader = array();
-
- /**
- * The most recent Message-ID (including angular brackets).
- * @var string
- * @access protected
- */
- protected $lastMessageID = '';
-
- /**
- * The message's MIME type.
- * @var string
- * @access protected
- */
- protected $message_type = '';
-
- /**
- * The array of MIME boundary strings.
- * @var array
- * @access protected
- */
- protected $boundary = array();
-
- /**
- * The array of available languages.
- * @var array
- * @access protected
- */
- protected $language = array();
-
- /**
- * The number of errors encountered.
- * @var integer
- * @access protected
- */
- protected $error_count = 0;
-
- /**
- * The S/MIME certificate file path.
- * @var string
- * @access protected
- */
- protected $sign_cert_file = '';
-
- /**
- * The S/MIME key file path.
- * @var string
- * @access protected
- */
- protected $sign_key_file = '';
-
- /**
- * The optional S/MIME extra certificates ("CA Chain") file path.
- * @var string
- * @access protected
- */
- protected $sign_extracerts_file = '';
-
- /**
- * The S/MIME password for the key.
- * Used only if the key is encrypted.
- * @var string
- * @access protected
- */
- protected $sign_key_pass = '';
-
- /**
- * Whether to throw exceptions for errors.
- * @var boolean
- * @access protected
- */
- protected $exceptions = false;
-
- /**
- * Unique ID used for message ID and boundaries.
- * @var string
- * @access protected
- */
- protected $uniqueid = '';
-
- /**
- * Error severity: message only, continue processing.
- */
- const STOP_MESSAGE = 0;
-
- /**
- * Error severity: message, likely ok to continue processing.
- */
- const STOP_CONTINUE = 1;
-
- /**
- * Error severity: message, plus full stop, critical error reached.
- */
- const STOP_CRITICAL = 2;
-
- /**
- * SMTP RFC standard line ending.
- */
- const CRLF = "\r\n";
-
- /**
- * The maximum line length allowed by RFC 2822 section 2.1.1
- * @var integer
- */
- const MAX_LINE_LENGTH = 998;
-
- /**
- * Constructor.
- * @param boolean $exceptions Should we throw external exceptions?
- */
- public function __construct($exceptions = null)
- {
- if ($exceptions !== null) {
- $this->exceptions = (boolean)$exceptions;
- }
- //Pick an appropriate debug output format automatically
- $this->Debugoutput = (strpos(PHP_SAPI, 'cli') !== false ? 'echo' : 'html');
- }
-
- /**
- * Destructor.
- */
- public function __destruct()
- {
- //Close any open SMTP connection nicely
- $this->smtpClose();
- }
-
- /**
- * Call mail() in a safe_mode-aware fashion.
- * Also, unless sendmail_path points to sendmail (or something that
- * claims to be sendmail), don't pass params (not a perfect fix,
- * but it will do)
- * @param string $to To
- * @param string $subject Subject
- * @param string $body Message Body
- * @param string $header Additional Header(s)
- * @param string $params Params
- * @access private
- * @return boolean
- */
- private function mailPassthru($to, $subject, $body, $header, $params)
- {
- //Check overloading of mail function to avoid double-encoding
- if (ini_get('mbstring.func_overload') & 1) {
- $subject = $this->secureHeader($subject);
- } else {
- $subject = $this->encodeHeader($this->secureHeader($subject));
- }
-
- //Can't use additional_parameters in safe_mode, calling mail() with null params breaks
- //@link http://php.net/manual/en/function.mail.php
- if (ini_get('safe_mode') or !$this->UseSendmailOptions or is_null($params)) {
- $result = @mail($to, $subject, $body, $header);
- } else {
- $result = @mail($to, $subject, $body, $header, $params);
- }
- return $result;
- }
- /**
- * Output debugging info via user-defined method.
- * Only generates output if SMTP debug output is enabled (@see SMTP::$do_debug).
- * @see PHPMailer::$Debugoutput
- * @see PHPMailer::$SMTPDebug
- * @param string $str
- */
- protected function edebug($str)
- {
- if ($this->SMTPDebug <= 0) {
- return;
- }
- //Avoid clash with built-in function names
- if (!in_array($this->Debugoutput, array('error_log', 'html', 'echo')) and is_callable($this->Debugoutput)) {
- call_user_func($this->Debugoutput, $str, $this->SMTPDebug);
- return;
- }
- switch ($this->Debugoutput) {
- case 'error_log':
- //Don't output, just log
- error_log($str);
- break;
- case 'html':
- //Cleans up output a bit for a better looking, HTML-safe output
- echo htmlentities(
- preg_replace('/[\r\n]+/', '', $str),
- ENT_QUOTES,
- 'UTF-8'
- )
- . "\n"; - break; - case 'echo': - default: - //Normalize line breaks - $str = preg_replace('/\r\n?/ms', "\n", $str); - echo gmdate('Y-m-d H:i:s') . "\t" . str_replace( - "\n", - "\n \t ", - trim($str) - ) . "\n"; - } - } - - /** - * Sets message type to HTML or plain. - * @param boolean $isHtml True for HTML mode. - * @return void - */ - public function isHTML($isHtml = true) - { - if ($isHtml) { - $this->ContentType = 'text/html'; - } else { - $this->ContentType = 'text/plain'; - } - } - - /** - * Send messages using SMTP. - * @return void - */ - public function isSMTP() - { - $this->Mailer = 'smtp'; - } - - /** - * Send messages using PHP's mail() function. - * @return void - */ - public function isMail() - { - $this->Mailer = 'mail'; - } - - /** - * Send messages using $Sendmail. - * @return void - */ - public function isSendmail() - { - $ini_sendmail_path = ini_get('sendmail_path'); - - if (!stristr($ini_sendmail_path, 'sendmail')) { - $this->Sendmail = '/usr/sbin/sendmail'; - } else { - $this->Sendmail = $ini_sendmail_path; - } - $this->Mailer = 'sendmail'; - } - - /** - * Send messages using qmail. - * @return void - */ - public function isQmail() - { - $ini_sendmail_path = ini_get('sendmail_path'); - - if (!stristr($ini_sendmail_path, 'qmail')) { - $this->Sendmail = '/var/qmail/bin/qmail-inject'; - } else { - $this->Sendmail = $ini_sendmail_path; - } - $this->Mailer = 'qmail'; - } - - /** - * Add a "To" address. - * @param string $address The email address to send to - * @param string $name - * @return boolean true on success, false if address already used or invalid in some way - */ - public function addAddress($address, $name = '') - { - return $this->addOrEnqueueAnAddress('to', $address, $name); - } - - /** - * Add a "CC" address. - * @note: This function works with the SMTP mailer on win32, not with the "mail" mailer. - * @param string $address The email address to send to - * @param string $name - * @return boolean true on success, false if address already used or invalid in some way - */ - public function addCC($address, $name = '') - { - return $this->addOrEnqueueAnAddress('cc', $address, $name); - } - - /** - * Add a "BCC" address. - * @note: This function works with the SMTP mailer on win32, not with the "mail" mailer. - * @param string $address The email address to send to - * @param string $name - * @return boolean true on success, false if address already used or invalid in some way - */ - public function addBCC($address, $name = '') - { - return $this->addOrEnqueueAnAddress('bcc', $address, $name); - } - - /** - * Add a "Reply-To" address. - * @param string $address The email address to reply to - * @param string $name - * @return boolean true on success, false if address already used or invalid in some way - */ - public function addReplyTo($address, $name = '') - { - return $this->addOrEnqueueAnAddress('Reply-To', $address, $name); - } - - /** - * Add an address to one of the recipient arrays or to the ReplyTo array. Because PHPMailer - * can't validate addresses with an IDN without knowing the PHPMailer::$CharSet (that can still - * be modified after calling this function), addition of such addresses is delayed until send(). - * Addresses that have been added already return false, but do not throw exceptions. - * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' - * @param string $address The email address to send, resp. to reply to - * @param string $name - * @throws phpmailerException - * @return boolean true on success, false if address already used or invalid in some way - * @access protected - */ - protected function addOrEnqueueAnAddress($kind, $address, $name) - { - $address = trim($address); - $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim - if (($pos = strrpos($address, '@')) === false) { - // At-sign is misssing. - $error_message = $this->lang('invalid_address') . " (addAnAddress $kind): $address"; - $this->setError($error_message); - $this->edebug($error_message); - if ($this->exceptions) { - throw new phpmailerException($error_message); - } - return false; - } - $params = array($kind, $address, $name); - // Enqueue addresses with IDN until we know the PHPMailer::$CharSet. - if ($this->has8bitChars(substr($address, ++$pos)) and $this->idnSupported()) { - if ($kind != 'Reply-To') { - if (!array_key_exists($address, $this->RecipientsQueue)) { - $this->RecipientsQueue[$address] = $params; - return true; - } - } else { - if (!array_key_exists($address, $this->ReplyToQueue)) { - $this->ReplyToQueue[$address] = $params; - return true; - } - } - return false; - } - // Immediately add standard addresses without IDN. - return call_user_func_array(array($this, 'addAnAddress'), $params); - } - - /** - * Add an address to one of the recipient arrays or to the ReplyTo array. - * Addresses that have been added already return false, but do not throw exceptions. - * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' - * @param string $address The email address to send, resp. to reply to - * @param string $name - * @throws phpmailerException - * @return boolean true on success, false if address already used or invalid in some way - * @access protected - */ - protected function addAnAddress($kind, $address, $name = '') - { - if (!in_array($kind, array('to', 'cc', 'bcc', 'Reply-To'))) { - $error_message = $this->lang('Invalid recipient kind: ') . $kind; - $this->setError($error_message); - $this->edebug($error_message); - if ($this->exceptions) { - throw new phpmailerException($error_message); - } - return false; - } - if (!$this->validateAddress($address)) { - $error_message = $this->lang('invalid_address') . " (addAnAddress $kind): $address"; - $this->setError($error_message); - $this->edebug($error_message); - if ($this->exceptions) { - throw new phpmailerException($error_message); - } - return false; - } - if ($kind != 'Reply-To') { - if (!array_key_exists(strtolower($address), $this->all_recipients)) { - array_push($this->$kind, array($address, $name)); - $this->all_recipients[strtolower($address)] = true; - return true; - } - } else { - if (!array_key_exists(strtolower($address), $this->ReplyTo)) { - $this->ReplyTo[strtolower($address)] = array($address, $name); - return true; - } - } - return false; - } - - /** - * Parse and validate a string containing one or more RFC822-style comma-separated email addresses - * of the form "display name " into an array of name/address pairs. - * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available. - * Note that quotes in the name part are removed. - * @param string $addrstr The address list string - * @param bool $useimap Whether to use the IMAP extension to parse the list - * @return array - * @link http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation - */ - public function parseAddresses($addrstr, $useimap = true) - { - $addresses = array(); - if ($useimap and function_exists('imap_rfc822_parse_adrlist')) { - //Use this built-in parser if it's available - $list = imap_rfc822_parse_adrlist($addrstr, ''); - foreach ($list as $address) { - if ($address->host != '.SYNTAX-ERROR.') { - if ($this->validateAddress($address->mailbox . '@' . $address->host)) { - $addresses[] = array( - 'name' => (property_exists($address, 'personal') ? $address->personal : ''), - 'address' => $address->mailbox . '@' . $address->host - ); - } - } - } - } else { - //Use this simpler parser - $list = explode(',', $addrstr); - foreach ($list as $address) { - $address = trim($address); - //Is there a separate name part? - if (strpos($address, '<') === false) { - //No separate name, just use the whole thing - if ($this->validateAddress($address)) { - $addresses[] = array( - 'name' => '', - 'address' => $address - ); - } - } else { - list($name, $email) = explode('<', $address); - $email = trim(str_replace('>', '', $email)); - if ($this->validateAddress($email)) { - $addresses[] = array( - 'name' => trim(str_replace(array('"', "'"), '', $name)), - 'address' => $email - ); - } - } - } - } - return $addresses; - } - - /** - * Set the From and FromName properties. - * @param string $address - * @param string $name - * @param boolean $auto Whether to also set the Sender address, defaults to true - * @throws phpmailerException - * @return boolean - */ - public function setFrom($address, $name = '', $auto = true) - { - $address = trim($address); - $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim - // Don't validate now addresses with IDN. Will be done in send(). - if (($pos = strrpos($address, '@')) === false or - (!$this->has8bitChars(substr($address, ++$pos)) or !$this->idnSupported()) and - !$this->validateAddress($address)) { - $error_message = $this->lang('invalid_address') . " (setFrom) $address"; - $this->setError($error_message); - $this->edebug($error_message); - if ($this->exceptions) { - throw new phpmailerException($error_message); - } - return false; - } - $this->From = $address; - $this->FromName = $name; - if ($auto) { - if (empty($this->Sender)) { - $this->Sender = $address; - } - } - return true; - } - - /** - * Return the Message-ID header of the last email. - * Technically this is the value from the last time the headers were created, - * but it's also the message ID of the last sent message except in - * pathological cases. - * @return string - */ - public function getLastMessageID() - { - return $this->lastMessageID; - } - - /** - * Check that a string looks like an email address. - * @param string $address The email address to check - * @param string|callable $patternselect A selector for the validation pattern to use : - * * `auto` Pick best pattern automatically; - * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0, PHP >= 5.3.2, 5.2.14; - * * `pcre` Use old PCRE implementation; - * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL; - * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements. - * * `noregex` Don't use a regex: super fast, really dumb. - * Alternatively you may pass in a callable to inject your own validator, for example: - * PHPMailer::validateAddress('user@example.com', function($address) { - * return (strpos($address, '@') !== false); - * }); - * You can also set the PHPMailer::$validator static to a callable, allowing built-in methods to use your validator. - * @return boolean - * @static - * @access public - */ - public static function validateAddress($address, $patternselect = null) - { - if (is_null($patternselect)) { - $patternselect = self::$validator; - } - if (is_callable($patternselect)) { - return call_user_func($patternselect, $address); - } - //Reject line breaks in addresses; it's valid RFC5322, but not RFC5321 - if (strpos($address, "\n") !== false or strpos($address, "\r") !== false) { - return false; - } - if (!$patternselect or $patternselect == 'auto') { - //Check this constant first so it works when extension_loaded() is disabled by safe mode - //Constant was added in PHP 5.2.4 - if (defined('PCRE_VERSION')) { - //This pattern can get stuck in a recursive loop in PCRE <= 8.0.2 - if (version_compare(PCRE_VERSION, '8.0.3') >= 0) { - $patternselect = 'pcre8'; - } else { - $patternselect = 'pcre'; - } - } elseif (function_exists('extension_loaded') and extension_loaded('pcre')) { - //Fall back to older PCRE - $patternselect = 'pcre'; - } else { - //Filter_var appeared in PHP 5.2.0 and does not require the PCRE extension - if (version_compare(PHP_VERSION, '5.2.0') >= 0) { - $patternselect = 'php'; - } else { - $patternselect = 'noregex'; - } - } - } - switch ($patternselect) { - case 'pcre8': - /** - * Uses the same RFC5322 regex on which FILTER_VALIDATE_EMAIL is based, but allows dotless domains. - * @link http://squiloople.com/2009/12/20/email-address-validation/ - * @copyright 2009-2010 Michael Rushton - * Feel free to use and redistribute this code. But please keep this copyright notice. - */ - return (boolean)preg_match( - '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' . - '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' . - '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' . - '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' . - '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' . - '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' . - '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' . - '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' . - '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD', - $address - ); - case 'pcre': - //An older regex that doesn't need a recent PCRE - return (boolean)preg_match( - '/^(?!(?>"?(?>\\\[ -~]|[^"])"?){255,})(?!(?>"?(?>\\\[ -~]|[^"])"?){65,}@)(?>' . - '[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*")' . - '(?>\.(?>[!#-\'*+\/-9=?^-~-]+|"(?>(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\xFF]))*"))*' . - '@(?>(?![a-z0-9-]{64,})(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)(?>\.(?![a-z0-9-]{64,})' . - '(?>[a-z0-9](?>[a-z0-9-]*[a-z0-9])?)){0,126}|\[(?:(?>IPv6:(?>(?>[a-f0-9]{1,4})(?>:' . - '[a-f0-9]{1,4}){7}|(?!(?:.*[a-f0-9][:\]]){8,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?' . - '::(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,6})?))|(?>(?>IPv6:(?>[a-f0-9]{1,4}(?>:' . - '[a-f0-9]{1,4}){5}:|(?!(?:.*[a-f0-9]:){6,})(?>[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4})?' . - '::(?>(?:[a-f0-9]{1,4}(?>:[a-f0-9]{1,4}){0,4}):)?))?(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}' . - '|[1-9]?[0-9])(?>\.(?>25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}))\])$/isD', - $address - ); - case 'html5': - /** - * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements. - * @link http://www.whatwg.org/specs/web-apps/current-work/#e-mail-state-(type=email) - */ - return (boolean)preg_match( - '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}' . - '[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/sD', - $address - ); - case 'noregex': - //No PCRE! Do something _very_ approximate! - //Check the address is 3 chars or longer and contains an @ that's not the first or last char - return (strlen($address) >= 3 - and strpos($address, '@') >= 1 - and strpos($address, '@') != strlen($address) - 1); - case 'php': - default: - return (boolean)filter_var($address, FILTER_VALIDATE_EMAIL); - } - } - - /** - * Tells whether IDNs (Internationalized Domain Names) are supported or not. This requires the - * "intl" and "mbstring" PHP extensions. - * @return bool "true" if required functions for IDN support are present - */ - public function idnSupported() - { - // @TODO: Write our own "idn_to_ascii" function for PHP <= 5.2. - return function_exists('idn_to_ascii') and function_exists('mb_convert_encoding'); - } - - /** - * Converts IDN in given email address to its ASCII form, also known as punycode, if possible. - * Important: Address must be passed in same encoding as currently set in PHPMailer::$CharSet. - * This function silently returns unmodified address if: - * - No conversion is necessary (i.e. domain name is not an IDN, or is already in ASCII form) - * - Conversion to punycode is impossible (e.g. required PHP functions are not available) - * or fails for any reason (e.g. domain has characters not allowed in an IDN) - * @see PHPMailer::$CharSet - * @param string $address The email address to convert - * @return string The encoded address in ASCII form - */ - public function punyencodeAddress($address) - { - // Verify we have required functions, CharSet, and at-sign. - if ($this->idnSupported() and - !empty($this->CharSet) and - ($pos = strrpos($address, '@')) !== false) { - $domain = substr($address, ++$pos); - // Verify CharSet string is a valid one, and domain properly encoded in this CharSet. - if ($this->has8bitChars($domain) and @mb_check_encoding($domain, $this->CharSet)) { - $domain = mb_convert_encoding($domain, 'UTF-8', $this->CharSet); - if (($punycode = defined('INTL_IDNA_VARIANT_UTS46') ? - idn_to_ascii($domain, 0, INTL_IDNA_VARIANT_UTS46) : - idn_to_ascii($domain)) !== false) { - return substr($address, 0, $pos) . $punycode; - } - } - } - return $address; - } - - /** - * Create a message and send it. - * Uses the sending method specified by $Mailer. - * @throws phpmailerException - * @return boolean false on error - See the ErrorInfo property for details of the error. - */ - public function send() - { - try { - if (!$this->preSend()) { - return false; - } - return $this->postSend(); - } catch (phpmailerException $exc) { - $this->mailHeader = ''; - $this->setError($exc->getMessage()); - if ($this->exceptions) { - throw $exc; - } - return false; - } - } - - /** - * Prepare a message for sending. - * @throws phpmailerException - * @return boolean - */ - public function preSend() - { - try { - $this->error_count = 0; // Reset errors - $this->mailHeader = ''; - - // Dequeue recipient and Reply-To addresses with IDN - foreach (array_merge($this->RecipientsQueue, $this->ReplyToQueue) as $params) { - $params[1] = $this->punyencodeAddress($params[1]); - call_user_func_array(array($this, 'addAnAddress'), $params); - } - if ((count($this->to) + count($this->cc) + count($this->bcc)) < 1) { - throw new phpmailerException($this->lang('provide_address'), self::STOP_CRITICAL); - } - - // Validate From, Sender, and ConfirmReadingTo addresses - foreach (array('From', 'Sender', 'ConfirmReadingTo') as $address_kind) { - $this->$address_kind = trim($this->$address_kind); - if (empty($this->$address_kind)) { - continue; - } - $this->$address_kind = $this->punyencodeAddress($this->$address_kind); - if (!$this->validateAddress($this->$address_kind)) { - $error_message = $this->lang('invalid_address') . ' (punyEncode) ' . $this->$address_kind; - $this->setError($error_message); - $this->edebug($error_message); - if ($this->exceptions) { - throw new phpmailerException($error_message); - } - return false; - } - } - - // Set whether the message is multipart/alternative - if ($this->alternativeExists()) { - $this->ContentType = 'multipart/alternative'; - } - - $this->setMessageType(); - // Refuse to send an empty message unless we are specifically allowing it - if (!$this->AllowEmpty and empty($this->Body)) { - throw new phpmailerException($this->lang('empty_message'), self::STOP_CRITICAL); - } - - // Create body before headers in case body makes changes to headers (e.g. altering transfer encoding) - $this->MIMEHeader = ''; - $this->MIMEBody = $this->createBody(); - // createBody may have added some headers, so retain them - $tempheaders = $this->MIMEHeader; - $this->MIMEHeader = $this->createHeader(); - $this->MIMEHeader .= $tempheaders; - - // To capture the complete message when using mail(), create - // an extra header list which createHeader() doesn't fold in - if ($this->Mailer == 'mail') { - if (count($this->to) > 0) { - $this->mailHeader .= $this->addrAppend('To', $this->to); - } else { - $this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;'); - } - $this->mailHeader .= $this->headerLine( - 'Subject', - $this->encodeHeader($this->secureHeader(trim($this->Subject))) - ); - } - - // Sign with DKIM if enabled - if (!empty($this->DKIM_domain) - and !empty($this->DKIM_selector) - and (!empty($this->DKIM_private_string) - or (!empty($this->DKIM_private) - and self::isPermittedPath($this->DKIM_private) - and file_exists($this->DKIM_private) - ) - ) - ) { - $header_dkim = $this->DKIM_Add( - $this->MIMEHeader . $this->mailHeader, - $this->encodeHeader($this->secureHeader($this->Subject)), - $this->MIMEBody - ); - $this->MIMEHeader = rtrim($this->MIMEHeader, "\r\n ") . self::CRLF . - str_replace("\r\n", "\n", $header_dkim) . self::CRLF; - } - return true; - } catch (phpmailerException $exc) { - $this->setError($exc->getMessage()); - if ($this->exceptions) { - throw $exc; - } - return false; - } - } - - /** - * Actually send a message. - * Send the email via the selected mechanism - * @throws phpmailerException - * @return boolean - */ - public function postSend() - { - try { - // Choose the mailer and send through it - switch ($this->Mailer) { - case 'sendmail': - case 'qmail': - return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody); - case 'smtp': - return $this->smtpSend($this->MIMEHeader, $this->MIMEBody); - case 'mail': - return $this->mailSend($this->MIMEHeader, $this->MIMEBody); - default: - $sendMethod = $this->Mailer.'Send'; - if (method_exists($this, $sendMethod)) { - return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody); - } - - return $this->mailSend($this->MIMEHeader, $this->MIMEBody); - } - } catch (phpmailerException $exc) { - $this->setError($exc->getMessage()); - $this->edebug($exc->getMessage()); - if ($this->exceptions) { - throw $exc; - } - } - return false; - } - - /** - * Send mail using the $Sendmail program. - * @param string $header The message headers - * @param string $body The message body - * @see PHPMailer::$Sendmail - * @throws phpmailerException - * @access protected - * @return boolean - */ - protected function sendmailSend($header, $body) - { - // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. - if (!empty($this->Sender) and self::isShellSafe($this->Sender)) { - if ($this->Mailer == 'qmail') { - $sendmailFmt = '%s -f%s'; - } else { - $sendmailFmt = '%s -oi -f%s -t'; - } - } else { - if ($this->Mailer == 'qmail') { - $sendmailFmt = '%s'; - } else { - $sendmailFmt = '%s -oi -t'; - } - } - - // TODO: If possible, this should be changed to escapeshellarg. Needs thorough testing. - $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender); - - if ($this->SingleTo) { - foreach ($this->SingleToArray as $toAddr) { - if (!@$mail = popen($sendmail, 'w')) { - throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); - } - fputs($mail, 'To: ' . $toAddr . "\n"); - fputs($mail, $header); - fputs($mail, $body); - $result = pclose($mail); - $this->doCallback( - ($result == 0), - array($toAddr), - $this->cc, - $this->bcc, - $this->Subject, - $body, - $this->From - ); - if ($result != 0) { - throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); - } - } - } else { - if (!@$mail = popen($sendmail, 'w')) { - throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); - } - fputs($mail, $header); - fputs($mail, $body); - $result = pclose($mail); - $this->doCallback( - ($result == 0), - $this->to, - $this->cc, - $this->bcc, - $this->Subject, - $body, - $this->From - ); - if ($result != 0) { - throw new phpmailerException($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); - } - } - return true; - } - - /** - * Fix CVE-2016-10033 and CVE-2016-10045 by disallowing potentially unsafe shell characters. - * - * Note that escapeshellarg and escapeshellcmd are inadequate for our purposes, especially on Windows. - * @param string $string The string to be validated - * @see https://github.com/PHPMailer/PHPMailer/issues/924 CVE-2016-10045 bug report - * @access protected - * @return boolean - */ - protected static function isShellSafe($string) - { - // Future-proof - if (escapeshellcmd($string) !== $string - or !in_array(escapeshellarg($string), array("'$string'", "\"$string\"")) - ) { - return false; - } - - $length = strlen($string); - - for ($i = 0; $i < $length; $i++) { - $c = $string[$i]; - - // All other characters have a special meaning in at least one common shell, including = and +. - // Full stop (.) has a special meaning in cmd.exe, but its impact should be negligible here. - // Note that this does permit non-Latin alphanumeric characters based on the current locale. - if (!ctype_alnum($c) && strpos('@_-.', $c) === false) { - return false; - } - } - - return true; - } - - /** - * Check whether a file path is of a permitted type. - * Used to reject URLs and phar files from functions that access local file paths, - * such as addAttachment. - * @param string $path A relative or absolute path to a file. - * @return bool - */ - protected static function isPermittedPath($path) - { - return !preg_match('#^[a-z]+://#i', $path); - } - - /** - * Send mail using the PHP mail() function. - * @param string $header The message headers - * @param string $body The message body - * @link http://www.php.net/manual/en/book.mail.php - * @throws phpmailerException - * @access protected - * @return boolean - */ - protected function mailSend($header, $body) - { - $toArr = array(); - foreach ($this->to as $toaddr) { - $toArr[] = $this->addrFormat($toaddr); - } - $to = implode(', ', $toArr); - - $params = null; - //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver - if (!empty($this->Sender) and $this->validateAddress($this->Sender)) { - // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. - if (self::isShellSafe($this->Sender)) { - $params = sprintf('-f%s', $this->Sender); - } - } - if (!empty($this->Sender) and !ini_get('safe_mode') and $this->validateAddress($this->Sender)) { - $old_from = ini_get('sendmail_from'); - ini_set('sendmail_from', $this->Sender); - } - $result = false; - if ($this->SingleTo and count($toArr) > 1) { - foreach ($toArr as $toAddr) { - $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params); - $this->doCallback($result, array($toAddr), $this->cc, $this->bcc, $this->Subject, $body, $this->From); - } - } else { - $result = $this->mailPassthru($to, $this->Subject, $body, $header, $params); - $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From); - } - if (isset($old_from)) { - ini_set('sendmail_from', $old_from); - } - if (!$result) { - throw new phpmailerException($this->lang('instantiate'), self::STOP_CRITICAL); - } - return true; - } - - /** - * Get an instance to use for SMTP operations. - * Override this function to load your own SMTP implementation - * @return SMTP - */ - public function getSMTPInstance() - { - if (!is_object($this->smtp)) { - require_once 'class-smtp.php'; - $this->smtp = new SMTP; - } - return $this->smtp; - } - - /** - * Send mail via SMTP. - * Returns false if there is a bad MAIL FROM, RCPT, or DATA input. - * Uses the PHPMailerSMTP class by default. - * @see PHPMailer::getSMTPInstance() to use a different class. - * @param string $header The message headers - * @param string $body The message body - * @throws phpmailerException - * @uses SMTP - * @access protected - * @return boolean - */ - protected function smtpSend($header, $body) - { - $bad_rcpt = array(); - if (!$this->smtpConnect($this->SMTPOptions)) { - throw new phpmailerException($this->lang('smtp_connect_failed'), self::STOP_CRITICAL); - } - if (!empty($this->Sender) and $this->validateAddress($this->Sender)) { - $smtp_from = $this->Sender; - } else { - $smtp_from = $this->From; - } - if (!$this->smtp->mail($smtp_from)) { - $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError())); - throw new phpmailerException($this->ErrorInfo, self::STOP_CRITICAL); - } - - // Attempt to send to all recipients - foreach (array($this->to, $this->cc, $this->bcc) as $togroup) { - foreach ($togroup as $to) { - if (!$this->smtp->recipient($to[0])) { - $error = $this->smtp->getError(); - $bad_rcpt[] = array('to' => $to[0], 'error' => $error['detail']); - $isSent = false; - } else { - $isSent = true; - } - $this->doCallback($isSent, array($to[0]), array(), array(), $this->Subject, $body, $this->From); - } - } - - // Only send the DATA command if we have viable recipients - if ((count($this->all_recipients) > count($bad_rcpt)) and !$this->smtp->data($header . $body)) { - throw new phpmailerException($this->lang('data_not_accepted'), self::STOP_CRITICAL); - } - if ($this->SMTPKeepAlive) { - $this->smtp->reset(); - } else { - $this->smtp->quit(); - $this->smtp->close(); - } - //Create error message for any bad addresses - if (count($bad_rcpt) > 0) { - $errstr = ''; - foreach ($bad_rcpt as $bad) { - $errstr .= $bad['to'] . ': ' . $bad['error']; - } - throw new phpmailerException( - $this->lang('recipients_failed') . $errstr, - self::STOP_CONTINUE - ); - } - return true; - } - - /** - * Initiate a connection to an SMTP server. - * Returns false if the operation failed. - * @param array $options An array of options compatible with stream_context_create() - * @uses SMTP - * @access public - * @throws phpmailerException - * @return boolean - */ - public function smtpConnect($options = null) - { - if (is_null($this->smtp)) { - $this->smtp = $this->getSMTPInstance(); - } - - //If no options are provided, use whatever is set in the instance - if (is_null($options)) { - $options = $this->SMTPOptions; - } - - // Already connected? - if ($this->smtp->connected()) { - return true; - } - - $this->smtp->setTimeout($this->Timeout); - $this->smtp->setDebugLevel($this->SMTPDebug); - $this->smtp->setDebugOutput($this->Debugoutput); - $this->smtp->setVerp($this->do_verp); - $hosts = explode(';', $this->Host); - $lastexception = null; - - foreach ($hosts as $hostentry) { - $hostinfo = array(); - if (!preg_match( - '/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*|\[[a-fA-F0-9:]+\]):?([0-9]*)$/', - trim($hostentry), - $hostinfo - )) { - // Not a valid host entry - $this->edebug('Ignoring invalid host: ' . $hostentry); - continue; - } - // $hostinfo[2]: optional ssl or tls prefix - // $hostinfo[3]: the hostname - // $hostinfo[4]: optional port number - // The host string prefix can temporarily override the current setting for SMTPSecure - // If it's not specified, the default value is used - $prefix = ''; - $secure = $this->SMTPSecure; - $tls = ($this->SMTPSecure == 'tls'); - if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) { - $prefix = 'ssl://'; - $tls = false; // Can't have SSL and TLS at the same time - $secure = 'ssl'; - } elseif ($hostinfo[2] == 'tls') { - $tls = true; - // tls doesn't use a prefix - $secure = 'tls'; - } - //Do we need the OpenSSL extension? - $sslext = defined('OPENSSL_ALGO_SHA1'); - if ('tls' === $secure or 'ssl' === $secure) { - //Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled - if (!$sslext) { - throw new phpmailerException($this->lang('extension_missing').'openssl', self::STOP_CRITICAL); - } - } - $host = $hostinfo[3]; - $port = $this->Port; - $tport = (integer)$hostinfo[4]; - if ($tport > 0 and $tport < 65536) { - $port = $tport; - } - if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) { - try { - if ($this->Helo) { - $hello = $this->Helo; - } else { - $hello = $this->serverHostname(); - } - $this->smtp->hello($hello); - //Automatically enable TLS encryption if: - // * it's not disabled - // * we have openssl extension - // * we are not already using SSL - // * the server offers STARTTLS - if ($this->SMTPAutoTLS and $sslext and $secure != 'ssl' and $this->smtp->getServerExt('STARTTLS')) { - $tls = true; - } - if ($tls) { - if (!$this->smtp->startTLS()) { - throw new phpmailerException($this->lang('connect_host')); - } - // We must resend EHLO after TLS negotiation - $this->smtp->hello($hello); - } - if ($this->SMTPAuth) { - if (!$this->smtp->authenticate( - $this->Username, - $this->Password, - $this->AuthType, - $this->Realm, - $this->Workstation - ) - ) { - throw new phpmailerException($this->lang('authenticate')); - } - } - return true; - } catch (phpmailerException $exc) { - $lastexception = $exc; - $this->edebug($exc->getMessage()); - // We must have connected, but then failed TLS or Auth, so close connection nicely - $this->smtp->quit(); - } - } - } - // If we get here, all connection attempts have failed, so close connection hard - $this->smtp->close(); - // As we've caught all exceptions, just report whatever the last one was - if ($this->exceptions and !is_null($lastexception)) { - throw $lastexception; - } - return false; - } - - /** - * Close the active SMTP session if one exists. - * @return void - */ - public function smtpClose() - { - if (is_a($this->smtp, 'SMTP')) { - if ($this->smtp->connected()) { - $this->smtp->quit(); - $this->smtp->close(); - } - } - } - - /** - * Set the language for error messages. - * Returns false if it cannot load the language file. - * The default language is English. - * @param string $langcode ISO 639-1 2-character language code (e.g. French is "fr") - * @param string $lang_path Path to the language file directory, with trailing separator (slash) - * @return boolean - * @access public - */ - public function setLanguage($langcode = 'en', $lang_path = '') - { - // Backwards compatibility for renamed language codes - $renamed_langcodes = array( - 'br' => 'pt_br', - 'cz' => 'cs', - 'dk' => 'da', - 'no' => 'nb', - 'se' => 'sv', - 'sr' => 'rs' - ); - - if (isset($renamed_langcodes[$langcode])) { - $langcode = $renamed_langcodes[$langcode]; - } - - // Define full set of translatable strings in English - $PHPMAILER_LANG = array( - 'authenticate' => 'SMTP Error: Could not authenticate.', - 'connect_host' => 'SMTP Error: Could not connect to SMTP host.', - 'data_not_accepted' => 'SMTP Error: data not accepted.', - 'empty_message' => 'Message body empty', - 'encoding' => 'Unknown encoding: ', - 'execute' => 'Could not execute: ', - 'file_access' => 'Could not access file: ', - 'file_open' => 'File Error: Could not open file: ', - 'from_failed' => 'The following From address failed: ', - 'instantiate' => 'Could not instantiate mail function.', - 'invalid_address' => 'Invalid address: ', - 'mailer_not_supported' => ' mailer is not supported.', - 'provide_address' => 'You must provide at least one recipient email address.', - 'recipients_failed' => 'SMTP Error: The following recipients failed: ', - 'signing' => 'Signing Error: ', - 'smtp_connect_failed' => 'SMTP connect() failed.', - 'smtp_error' => 'SMTP server error: ', - 'variable_set' => 'Cannot set or reset variable: ', - 'extension_missing' => 'Extension missing: ' - ); - if (empty($lang_path)) { - // Calculate an absolute path so it can work if CWD is not here - $lang_path = dirname(__FILE__). DIRECTORY_SEPARATOR . 'language'. DIRECTORY_SEPARATOR; - } - //Validate $langcode - if (!preg_match('/^[a-z]{2}(?:_[a-zA-Z]{2})?$/', $langcode)) { - $langcode = 'en'; - } - $foundlang = true; - $lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php'; - // There is no English translation file - if ($langcode != 'en') { - // Make sure language file path is readable - if (!self::isPermittedPath($lang_file) or !is_readable($lang_file)) { - $foundlang = false; - } else { - // Overwrite language-specific strings. - // This way we'll never have missing translation keys. - $foundlang = include $lang_file; - } - } - $this->language = $PHPMAILER_LANG; - return (boolean)$foundlang; // Returns false if language not found - } - - /** - * Get the array of strings for the current language. - * @return array - */ - public function getTranslations() - { - return $this->language; - } - - /** - * Create recipient headers. - * @access public - * @param string $type - * @param array $addr An array of recipient, - * where each recipient is a 2-element indexed array with element 0 containing an address - * and element 1 containing a name, like: - * array(array('joe@example.com', 'Joe User'), array('zoe@example.com', 'Zoe User')) - * @return string - */ - public function addrAppend($type, $addr) - { - $addresses = array(); - foreach ($addr as $address) { - $addresses[] = $this->addrFormat($address); - } - return $type . ': ' . implode(', ', $addresses) . $this->LE; - } - - /** - * Format an address for use in a message header. - * @access public - * @param array $addr A 2-element indexed array, element 0 containing an address, element 1 containing a name - * like array('joe@example.com', 'Joe User') - * @return string - */ - public function addrFormat($addr) - { - if (empty($addr[1])) { // No name provided - return $this->secureHeader($addr[0]); - } else { - return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . ' <' . $this->secureHeader( - $addr[0] - ) . '>'; - } - } - - /** - * Word-wrap message. - * For use with mailers that do not automatically perform wrapping - * and for quoted-printable encoded messages. - * Original written by philippe. - * @param string $message The message to wrap - * @param integer $length The line length to wrap to - * @param boolean $qp_mode Whether to run in Quoted-Printable mode - * @access public - * @return string - */ - public function wrapText($message, $length, $qp_mode = false) - { - if ($qp_mode) { - $soft_break = sprintf(' =%s', $this->LE); - } else { - $soft_break = $this->LE; - } - // If utf-8 encoding is used, we will need to make sure we don't - // split multibyte characters when we wrap - $is_utf8 = (strtolower($this->CharSet) == 'utf-8'); - $lelen = strlen($this->LE); - $crlflen = strlen(self::CRLF); - - $message = $this->fixEOL($message); - //Remove a trailing line break - if (substr($message, -$lelen) == $this->LE) { - $message = substr($message, 0, -$lelen); - } - - //Split message into lines - $lines = explode($this->LE, $message); - //Message will be rebuilt in here - $message = ''; - foreach ($lines as $line) { - $words = explode(' ', $line); - $buf = ''; - $firstword = true; - foreach ($words as $word) { - if ($qp_mode and (strlen($word) > $length)) { - $space_left = $length - strlen($buf) - $crlflen; - if (!$firstword) { - if ($space_left > 20) { - $len = $space_left; - if ($is_utf8) { - $len = $this->utf8CharBoundary($word, $len); - } elseif (substr($word, $len - 1, 1) == '=') { - $len--; - } elseif (substr($word, $len - 2, 1) == '=') { - $len -= 2; - } - $part = substr($word, 0, $len); - $word = substr($word, $len); - $buf .= ' ' . $part; - $message .= $buf . sprintf('=%s', self::CRLF); - } else { - $message .= $buf . $soft_break; - } - $buf = ''; - } - while (strlen($word) > 0) { - if ($length <= 0) { - break; - } - $len = $length; - if ($is_utf8) { - $len = $this->utf8CharBoundary($word, $len); - } elseif (substr($word, $len - 1, 1) == '=') { - $len--; - } elseif (substr($word, $len - 2, 1) == '=') { - $len -= 2; - } - $part = substr($word, 0, $len); - $word = substr($word, $len); - - if (strlen($word) > 0) { - $message .= $part . sprintf('=%s', self::CRLF); - } else { - $buf = $part; - } - } - } else { - $buf_o = $buf; - if (!$firstword) { - $buf .= ' '; - } - $buf .= $word; - - if (strlen($buf) > $length and $buf_o != '') { - $message .= $buf_o . $soft_break; - $buf = $word; - } - } - $firstword = false; - } - $message .= $buf . self::CRLF; - } - - return $message; - } - - /** - * Find the last character boundary prior to $maxLength in a utf-8 - * quoted-printable encoded string. - * Original written by Colin Brown. - * @access public - * @param string $encodedText utf-8 QP text - * @param integer $maxLength Find the last character boundary prior to this length - * @return integer - */ - public function utf8CharBoundary($encodedText, $maxLength) - { - $foundSplitPos = false; - $lookBack = 3; - while (!$foundSplitPos) { - $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack); - $encodedCharPos = strpos($lastChunk, '='); - if (false !== $encodedCharPos) { - // Found start of encoded character byte within $lookBack block. - // Check the encoded byte value (the 2 chars after the '=') - $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2); - $dec = hexdec($hex); - if ($dec < 128) { - // Single byte character. - // If the encoded char was found at pos 0, it will fit - // otherwise reduce maxLength to start of the encoded char - if ($encodedCharPos > 0) { - $maxLength = $maxLength - ($lookBack - $encodedCharPos); - } - $foundSplitPos = true; - } elseif ($dec >= 192) { - // First byte of a multi byte character - // Reduce maxLength to split at start of character - $maxLength = $maxLength - ($lookBack - $encodedCharPos); - $foundSplitPos = true; - } elseif ($dec < 192) { - // Middle byte of a multi byte character, look further back - $lookBack += 3; - } - } else { - // No encoded character found - $foundSplitPos = true; - } - } - return $maxLength; - } - - /** - * Apply word wrapping to the message body. - * Wraps the message body to the number of chars set in the WordWrap property. - * You should only do this to plain-text bodies as wrapping HTML tags may break them. - * This is called automatically by createBody(), so you don't need to call it yourself. - * @access public - * @return void - */ - public function setWordWrap() - { - if ($this->WordWrap < 1) { - return; - } - - switch ($this->message_type) { - case 'alt': - case 'alt_inline': - case 'alt_attach': - case 'alt_inline_attach': - $this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap); - break; - default: - $this->Body = $this->wrapText($this->Body, $this->WordWrap); - break; - } - } - - /** - * Assemble message headers. - * @access public - * @return string The assembled headers - */ - public function createHeader() - { - $result = ''; - - $result .= $this->headerLine('Date', $this->MessageDate == '' ? self::rfcDate() : $this->MessageDate); - - // To be created automatically by mail() - if ($this->SingleTo) { - if ($this->Mailer != 'mail') { - foreach ($this->to as $toaddr) { - $this->SingleToArray[] = $this->addrFormat($toaddr); - } - } - } else { - if (count($this->to) > 0) { - if ($this->Mailer != 'mail') { - $result .= $this->addrAppend('To', $this->to); - } - } elseif (count($this->cc) == 0) { - $result .= $this->headerLine('To', 'undisclosed-recipients:;'); - } - } - - $result .= $this->addrAppend('From', array(array(trim($this->From), $this->FromName))); - - // sendmail and mail() extract Cc from the header before sending - if (count($this->cc) > 0) { - $result .= $this->addrAppend('Cc', $this->cc); - } - - // sendmail and mail() extract Bcc from the header before sending - if (( - $this->Mailer == 'sendmail' or $this->Mailer == 'qmail' or $this->Mailer == 'mail' - ) - and count($this->bcc) > 0 - ) { - $result .= $this->addrAppend('Bcc', $this->bcc); - } - - if (count($this->ReplyTo) > 0) { - $result .= $this->addrAppend('Reply-To', $this->ReplyTo); - } - - // mail() sets the subject itself - if ($this->Mailer != 'mail') { - $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject))); - } - - // Only allow a custom message ID if it conforms to RFC 5322 section 3.6.4 - // https://tools.ietf.org/html/rfc5322#section-3.6.4 - if ('' != $this->MessageID and preg_match('/^<.*@.*>$/', $this->MessageID)) { - $this->lastMessageID = $this->MessageID; - } else { - $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname()); - } - $result .= $this->headerLine('Message-ID', $this->lastMessageID); - if (!is_null($this->Priority)) { - $result .= $this->headerLine('X-Priority', $this->Priority); - } - if ($this->XMailer == '') { - $result .= $this->headerLine( - 'X-Mailer', - 'PHPMailer ' . $this->Version . ' (https://github.com/PHPMailer/PHPMailer)' - ); - } else { - $myXmailer = trim($this->XMailer); - if ($myXmailer) { - $result .= $this->headerLine('X-Mailer', $myXmailer); - } - } - - if ($this->ConfirmReadingTo != '') { - $result .= $this->headerLine('Disposition-Notification-To', '<' . $this->ConfirmReadingTo . '>'); - } - - // Add custom headers - foreach ($this->CustomHeader as $header) { - $result .= $this->headerLine( - trim($header[0]), - $this->encodeHeader(trim($header[1])) - ); - } - if (!$this->sign_key_file) { - $result .= $this->headerLine('MIME-Version', '1.0'); - $result .= $this->getMailMIME(); - } - - return $result; - } - - /** - * Get the message MIME type headers. - * @access public - * @return string - */ - public function getMailMIME() - { - $result = ''; - $ismultipart = true; - switch ($this->message_type) { - case 'inline': - $result .= $this->headerLine('Content-Type', 'multipart/related;'); - $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"'); - break; - case 'attach': - case 'inline_attach': - case 'alt_attach': - case 'alt_inline_attach': - $result .= $this->headerLine('Content-Type', 'multipart/mixed;'); - $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"'); - break; - case 'alt': - case 'alt_inline': - $result .= $this->headerLine('Content-Type', 'multipart/alternative;'); - $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"'); - break; - default: - // Catches case 'plain': and case '': - $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet); - $ismultipart = false; - break; - } - // RFC1341 part 5 says 7bit is assumed if not specified - if ($this->Encoding != '7bit') { - // RFC 2045 section 6.4 says multipart MIME parts may only use 7bit, 8bit or binary CTE - if ($ismultipart) { - if ($this->Encoding == '8bit') { - $result .= $this->headerLine('Content-Transfer-Encoding', '8bit'); - } - // The only remaining alternatives are quoted-printable and base64, which are both 7bit compatible - } else { - $result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding); - } - } - - if ($this->Mailer != 'mail') { - $result .= $this->LE; - } - - return $result; - } - - /** - * Returns the whole MIME message. - * Includes complete headers and body. - * Only valid post preSend(). - * @see PHPMailer::preSend() - * @access public - * @return string - */ - public function getSentMIMEMessage() - { - return rtrim($this->MIMEHeader . $this->mailHeader, "\n\r") . self::CRLF . self::CRLF . $this->MIMEBody; - } - - /** - * Create unique ID - * @return string - */ - protected function generateId() { - return md5(uniqid(time())); - } - - /** - * Assemble the message body. - * Returns an empty string on failure. - * @access public - * @throws phpmailerException - * @return string The assembled message body - */ - public function createBody() - { - $body = ''; - //Create unique IDs and preset boundaries - $this->uniqueid = $this->generateId(); - $this->boundary[1] = 'b1_' . $this->uniqueid; - $this->boundary[2] = 'b2_' . $this->uniqueid; - $this->boundary[3] = 'b3_' . $this->uniqueid; - - if ($this->sign_key_file) { - $body .= $this->getMailMIME() . $this->LE; - } - - $this->setWordWrap(); - - $bodyEncoding = $this->Encoding; - $bodyCharSet = $this->CharSet; - //Can we do a 7-bit downgrade? - if ($bodyEncoding == '8bit' and !$this->has8bitChars($this->Body)) { - $bodyEncoding = '7bit'; - //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit - $bodyCharSet = 'us-ascii'; - } - //If lines are too long, and we're not already using an encoding that will shorten them, - //change to quoted-printable transfer encoding for the body part only - if ('base64' != $this->Encoding and self::hasLineLongerThanMax($this->Body)) { - $bodyEncoding = 'quoted-printable'; - } - - $altBodyEncoding = $this->Encoding; - $altBodyCharSet = $this->CharSet; - //Can we do a 7-bit downgrade? - if ($altBodyEncoding == '8bit' and !$this->has8bitChars($this->AltBody)) { - $altBodyEncoding = '7bit'; - //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit - $altBodyCharSet = 'us-ascii'; - } - //If lines are too long, and we're not already using an encoding that will shorten them, - //change to quoted-printable transfer encoding for the alt body part only - if ('base64' != $altBodyEncoding and self::hasLineLongerThanMax($this->AltBody)) { - $altBodyEncoding = 'quoted-printable'; - } - //Use this as a preamble in all multipart message types - $mimepre = "This is a multi-part message in MIME format." . $this->LE . $this->LE; - switch ($this->message_type) { - case 'inline': - $body .= $mimepre; - $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); - $body .= $this->encodeString($this->Body, $bodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->attachAll('inline', $this->boundary[1]); - break; - case 'attach': - $body .= $mimepre; - $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); - $body .= $this->encodeString($this->Body, $bodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->attachAll('attachment', $this->boundary[1]); - break; - case 'inline_attach': - $body .= $mimepre; - $body .= $this->textLine('--' . $this->boundary[1]); - $body .= $this->headerLine('Content-Type', 'multipart/related;'); - $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); - $body .= $this->LE; - $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding); - $body .= $this->encodeString($this->Body, $bodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->attachAll('inline', $this->boundary[2]); - $body .= $this->LE; - $body .= $this->attachAll('attachment', $this->boundary[1]); - break; - case 'alt': - $body .= $mimepre; - $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding); - $body .= $this->encodeString($this->AltBody, $altBodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, 'text/html', $bodyEncoding); - $body .= $this->encodeString($this->Body, $bodyEncoding); - $body .= $this->LE . $this->LE; - if (!empty($this->Ical)) { - $body .= $this->getBoundary($this->boundary[1], '', 'text/calendar; method=REQUEST', ''); - $body .= $this->encodeString($this->Ical, $this->Encoding); - $body .= $this->LE . $this->LE; - } - $body .= $this->endBoundary($this->boundary[1]); - break; - case 'alt_inline': - $body .= $mimepre; - $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, 'text/plain', $altBodyEncoding); - $body .= $this->encodeString($this->AltBody, $altBodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->textLine('--' . $this->boundary[1]); - $body .= $this->headerLine('Content-Type', 'multipart/related;'); - $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); - $body .= $this->LE; - $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding); - $body .= $this->encodeString($this->Body, $bodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->attachAll('inline', $this->boundary[2]); - $body .= $this->LE; - $body .= $this->endBoundary($this->boundary[1]); - break; - case 'alt_attach': - $body .= $mimepre; - $body .= $this->textLine('--' . $this->boundary[1]); - $body .= $this->headerLine('Content-Type', 'multipart/alternative;'); - $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); - $body .= $this->LE; - $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding); - $body .= $this->encodeString($this->AltBody, $altBodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, 'text/html', $bodyEncoding); - $body .= $this->encodeString($this->Body, $bodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->endBoundary($this->boundary[2]); - $body .= $this->LE; - $body .= $this->attachAll('attachment', $this->boundary[1]); - break; - case 'alt_inline_attach': - $body .= $mimepre; - $body .= $this->textLine('--' . $this->boundary[1]); - $body .= $this->headerLine('Content-Type', 'multipart/alternative;'); - $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); - $body .= $this->LE; - $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, 'text/plain', $altBodyEncoding); - $body .= $this->encodeString($this->AltBody, $altBodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->textLine('--' . $this->boundary[2]); - $body .= $this->headerLine('Content-Type', 'multipart/related;'); - $body .= $this->textLine("\tboundary=\"" . $this->boundary[3] . '"'); - $body .= $this->LE; - $body .= $this->getBoundary($this->boundary[3], $bodyCharSet, 'text/html', $bodyEncoding); - $body .= $this->encodeString($this->Body, $bodyEncoding); - $body .= $this->LE . $this->LE; - $body .= $this->attachAll('inline', $this->boundary[3]); - $body .= $this->LE; - $body .= $this->endBoundary($this->boundary[2]); - $body .= $this->LE; - $body .= $this->attachAll('attachment', $this->boundary[1]); - break; - default: - // Catch case 'plain' and case '', applies to simple `text/plain` and `text/html` body content types - //Reset the `Encoding` property in case we changed it for line length reasons - $this->Encoding = $bodyEncoding; - $body .= $this->encodeString($this->Body, $this->Encoding); - break; - } - - if ($this->isError()) { - $body = ''; - } elseif ($this->sign_key_file) { - try { - if (!defined('PKCS7_TEXT')) { - throw new phpmailerException($this->lang('extension_missing') . 'openssl'); - } - // @TODO would be nice to use php://temp streams here, but need to wrap for PHP < 5.1 - $file = tempnam(sys_get_temp_dir(), 'mail'); - if (false === file_put_contents($file, $body)) { - throw new phpmailerException($this->lang('signing') . ' Could not write temp file'); - } - $signed = tempnam(sys_get_temp_dir(), 'signed'); - //Workaround for PHP bug https://bugs.php.net/bug.php?id=69197 - if (empty($this->sign_extracerts_file)) { - $sign = @openssl_pkcs7_sign( - $file, - $signed, - 'file://' . realpath($this->sign_cert_file), - array('file://' . realpath($this->sign_key_file), $this->sign_key_pass), - null - ); - } else { - $sign = @openssl_pkcs7_sign( - $file, - $signed, - 'file://' . realpath($this->sign_cert_file), - array('file://' . realpath($this->sign_key_file), $this->sign_key_pass), - null, - PKCS7_DETACHED, - $this->sign_extracerts_file - ); - } - if ($sign) { - @unlink($file); - $body = file_get_contents($signed); - @unlink($signed); - //The message returned by openssl contains both headers and body, so need to split them up - $parts = explode("\n\n", $body, 2); - $this->MIMEHeader .= $parts[0] . $this->LE . $this->LE; - $body = $parts[1]; - } else { - @unlink($file); - @unlink($signed); - throw new phpmailerException($this->lang('signing') . openssl_error_string()); - } - } catch (phpmailerException $exc) { - $body = ''; - if ($this->exceptions) { - throw $exc; - } - } - } - return $body; - } - - /** - * Return the start of a message boundary. - * @access protected - * @param string $boundary - * @param string $charSet - * @param string $contentType - * @param string $encoding - * @return string - */ - protected function getBoundary($boundary, $charSet, $contentType, $encoding) - { - $result = ''; - if ($charSet == '') { - $charSet = $this->CharSet; - } - if ($contentType == '') { - $contentType = $this->ContentType; - } - if ($encoding == '') { - $encoding = $this->Encoding; - } - $result .= $this->textLine('--' . $boundary); - $result .= sprintf('Content-Type: %s; charset=%s', $contentType, $charSet); - $result .= $this->LE; - // RFC1341 part 5 says 7bit is assumed if not specified - if ($encoding != '7bit') { - $result .= $this->headerLine('Content-Transfer-Encoding', $encoding); - } - $result .= $this->LE; - - return $result; - } - - /** - * Return the end of a message boundary. - * @access protected - * @param string $boundary - * @return string - */ - protected function endBoundary($boundary) - { - return $this->LE . '--' . $boundary . '--' . $this->LE; - } - - /** - * Set the message type. - * PHPMailer only supports some preset message types, not arbitrary MIME structures. - * @access protected - * @return void - */ - protected function setMessageType() - { - $type = array(); - if ($this->alternativeExists()) { - $type[] = 'alt'; - } - if ($this->inlineImageExists()) { - $type[] = 'inline'; - } - if ($this->attachmentExists()) { - $type[] = 'attach'; - } - $this->message_type = implode('_', $type); - if ($this->message_type == '') { - //The 'plain' message_type refers to the message having a single body element, not that it is plain-text - $this->message_type = 'plain'; - } - } - - /** - * Format a header line. - * @access public - * @param string $name - * @param string $value - * @return string - */ - public function headerLine($name, $value) - { - return $name . ': ' . $value . $this->LE; - } - - /** - * Return a formatted mail line. - * @access public - * @param string $value - * @return string - */ - public function textLine($value) - { - return $value . $this->LE; - } - - /** - * Add an attachment from a path on the filesystem. - * Never use a user-supplied path to a file! - * Returns false if the file could not be found or read. - * Explicitly *does not* support passing URLs; PHPMailer is not an HTTP client. - * If you need to do that, fetch the resource yourself and pass it in via a local file or string. - * @param string $path Path to the attachment. - * @param string $name Overrides the attachment name. - * @param string $encoding File encoding (see $Encoding). - * @param string $type File extension (MIME) type. - * @param string $disposition Disposition to use - * @throws phpmailerException - * @return boolean - */ - public function addAttachment($path, $name = '', $encoding = 'base64', $type = '', $disposition = 'attachment') - { - try { - if (!self::isPermittedPath($path) or !@is_file($path)) { - throw new phpmailerException($this->lang('file_access') . $path, self::STOP_CONTINUE); - } - - // If a MIME type is not specified, try to work it out from the file name - if ($type == '') { - $type = self::filenameToType($path); - } - - $filename = basename($path); - if ($name == '') { - $name = $filename; - } - - $this->attachment[] = array( - 0 => $path, - 1 => $filename, - 2 => $name, - 3 => $encoding, - 4 => $type, - 5 => false, // isStringAttachment - 6 => $disposition, - 7 => 0 - ); - - } catch (phpmailerException $exc) { - $this->setError($exc->getMessage()); - $this->edebug($exc->getMessage()); - if ($this->exceptions) { - throw $exc; - } - return false; - } - return true; - } - - /** - * Return the array of attachments. - * @return array - */ - public function getAttachments() - { - return $this->attachment; - } - - /** - * Attach all file, string, and binary attachments to the message. - * Returns an empty string on failure. - * @access protected - * @param string $disposition_type - * @param string $boundary - * @return string - */ - protected function attachAll($disposition_type, $boundary) - { - // Return text of body - $mime = array(); - $cidUniq = array(); - $incl = array(); - - // Add all attachments - foreach ($this->attachment as $attachment) { - // Check if it is a valid disposition_filter - if ($attachment[6] == $disposition_type) { - // Check for string attachment - $string = ''; - $path = ''; - $bString = $attachment[5]; - if ($bString) { - $string = $attachment[0]; - } else { - $path = $attachment[0]; - } - - $inclhash = md5(serialize($attachment)); - if (in_array($inclhash, $incl)) { - continue; - } - $incl[] = $inclhash; - $name = $attachment[2]; - $encoding = $attachment[3]; - $type = $attachment[4]; - $disposition = $attachment[6]; - $cid = $attachment[7]; - if ($disposition == 'inline' && array_key_exists($cid, $cidUniq)) { - continue; - } - $cidUniq[$cid] = true; - - $mime[] = sprintf('--%s%s', $boundary, $this->LE); - //Only include a filename property if we have one - if (!empty($name)) { - $mime[] = sprintf( - 'Content-Type: %s; name="%s"%s', - $type, - $this->encodeHeader($this->secureHeader($name)), - $this->LE - ); - } else { - $mime[] = sprintf( - 'Content-Type: %s%s', - $type, - $this->LE - ); - } - // RFC1341 part 5 says 7bit is assumed if not specified - if ($encoding != '7bit') { - $mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, $this->LE); - } - - if ($disposition == 'inline') { - $mime[] = sprintf('Content-ID: <%s>%s', $cid, $this->LE); - } - - // If a filename contains any of these chars, it should be quoted, - // but not otherwise: RFC2183 & RFC2045 5.1 - // Fixes a warning in IETF's msglint MIME checker - // Allow for bypassing the Content-Disposition header totally - if (!(empty($disposition))) { - $encoded_name = $this->encodeHeader($this->secureHeader($name)); - if (preg_match('/[ \(\)<>@,;:\\"\/\[\]\?=]/', $encoded_name)) { - $mime[] = sprintf( - 'Content-Disposition: %s; filename="%s"%s', - $disposition, - $encoded_name, - $this->LE . $this->LE - ); - } else { - if (!empty($encoded_name)) { - $mime[] = sprintf( - 'Content-Disposition: %s; filename=%s%s', - $disposition, - $encoded_name, - $this->LE . $this->LE - ); - } else { - $mime[] = sprintf( - 'Content-Disposition: %s%s', - $disposition, - $this->LE . $this->LE - ); - } - } - } else { - $mime[] = $this->LE; - } - - // Encode as string attachment - if ($bString) { - $mime[] = $this->encodeString($string, $encoding); - if ($this->isError()) { - return ''; - } - $mime[] = $this->LE . $this->LE; - } else { - $mime[] = $this->encodeFile($path, $encoding); - if ($this->isError()) { - return ''; - } - $mime[] = $this->LE . $this->LE; - } - } - } - - $mime[] = sprintf('--%s--%s', $boundary, $this->LE); - - return implode('', $mime); - } - - /** - * Encode a file attachment in requested format. - * Returns an empty string on failure. - * @param string $path The full path to the file - * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' - * @throws phpmailerException - * @access protected - * @return string - */ - protected function encodeFile($path, $encoding = 'base64') - { - try { - if (!self::isPermittedPath($path) or !file_exists($path)) { - throw new phpmailerException($this->lang('file_open') . $path, self::STOP_CONTINUE); - } - $magic_quotes = ( PHP_VERSION_ID < 70400 && get_magic_quotes_runtime() ); // WP: Patched for PHP 7.4. - if ($magic_quotes) { - if (version_compare(PHP_VERSION, '5.3.0', '<')) { - set_magic_quotes_runtime(false); - } else { - //Doesn't exist in PHP 5.4, but we don't need to check because - //get_magic_quotes_runtime always returns false in 5.4+ - //so it will never get here - ini_set('magic_quotes_runtime', false); - } - } - $file_buffer = file_get_contents($path); - $file_buffer = $this->encodeString($file_buffer, $encoding); - if ($magic_quotes) { - if (version_compare(PHP_VERSION, '5.3.0', '<')) { - set_magic_quotes_runtime($magic_quotes); - } else { - ini_set('magic_quotes_runtime', $magic_quotes); - } - } - return $file_buffer; - } catch (Exception $exc) { - $this->setError($exc->getMessage()); - return ''; - } - } - - /** - * Encode a string in requested format. - * Returns an empty string on failure. - * @param string $str The text to encode - * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' - * @access public - * @return string - */ - public function encodeString($str, $encoding = 'base64') - { - $encoded = ''; - switch (strtolower($encoding)) { - case 'base64': - $encoded = chunk_split(base64_encode($str), 76, $this->LE); - break; - case '7bit': - case '8bit': - $encoded = $this->fixEOL($str); - // Make sure it ends with a line break - if (substr($encoded, -(strlen($this->LE))) != $this->LE) { - $encoded .= $this->LE; - } - break; - case 'binary': - $encoded = $str; - break; - case 'quoted-printable': - $encoded = $this->encodeQP($str); - break; - default: - $this->setError($this->lang('encoding') . $encoding); - break; - } - return $encoded; - } - - /** - * Encode a header string optimally. - * Picks shortest of Q, B, quoted-printable or none. - * @access public - * @param string $str - * @param string $position - * @return string - */ - public function encodeHeader($str, $position = 'text') - { - $matchcount = 0; - switch (strtolower($position)) { - case 'phrase': - if (!preg_match('/[\200-\377]/', $str)) { - // Can't use addslashes as we don't know the value of magic_quotes_sybase - $encoded = addcslashes($str, "\0..\37\177\\\""); - if (($str == $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) { - return ($encoded); - } else { - return ("\"$encoded\""); - } - } - $matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches); - break; - /** @noinspection PhpMissingBreakStatementInspection */ - case 'comment': - $matchcount = preg_match_all('/[()"]/', $str, $matches); - // Intentional fall-through - case 'text': - default: - $matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches); - break; - } - - //There are no chars that need encoding - if ($matchcount == 0) { - return ($str); - } - - $maxlen = 75 - 7 - strlen($this->CharSet); - // Try to select the encoding which should produce the shortest output - if ($matchcount > strlen($str) / 3) { - // More than a third of the content will need encoding, so B encoding will be most efficient - $encoding = 'B'; - if (function_exists('mb_strlen') && $this->hasMultiBytes($str)) { - // Use a custom function which correctly encodes and wraps long - // multibyte strings without breaking lines within a character - $encoded = $this->base64EncodeWrapMB($str, "\n"); - } else { - $encoded = base64_encode($str); - $maxlen -= $maxlen % 4; - $encoded = trim(chunk_split($encoded, $maxlen, "\n")); - } - } else { - $encoding = 'Q'; - $encoded = $this->encodeQ($str, $position); - $encoded = $this->wrapText($encoded, $maxlen, true); - $encoded = str_replace('=' . self::CRLF, "\n", trim($encoded)); - } - - $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded); - $encoded = trim(str_replace("\n", $this->LE, $encoded)); - - return $encoded; - } - - /** - * Check if a string contains multi-byte characters. - * @access public - * @param string $str multi-byte text to wrap encode - * @return boolean - */ - public function hasMultiBytes($str) - { - if (function_exists('mb_strlen')) { - return (strlen($str) > mb_strlen($str, $this->CharSet)); - } else { // Assume no multibytes (we can't handle without mbstring functions anyway) - return false; - } - } - - /** - * Does a string contain any 8-bit chars (in any charset)? - * @param string $text - * @return boolean - */ - public function has8bitChars($text) - { - return (boolean)preg_match('/[\x80-\xFF]/', $text); - } - - /** - * Encode and wrap long multibyte strings for mail headers - * without breaking lines within a character. - * Adapted from a function by paravoid - * @link http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283 - * @access public - * @param string $str multi-byte text to wrap encode - * @param string $linebreak string to use as linefeed/end-of-line - * @return string - */ - public function base64EncodeWrapMB($str, $linebreak = null) - { - $start = '=?' . $this->CharSet . '?B?'; - $end = '?='; - $encoded = ''; - if ($linebreak === null) { - $linebreak = $this->LE; - } - - $mb_length = mb_strlen($str, $this->CharSet); - // Each line must have length <= 75, including $start and $end - $length = 75 - strlen($start) - strlen($end); - // Average multi-byte ratio - $ratio = $mb_length / strlen($str); - // Base64 has a 4:3 ratio - $avgLength = floor($length * $ratio * .75); - - for ($i = 0; $i < $mb_length; $i += $offset) { - $lookBack = 0; - do { - $offset = $avgLength - $lookBack; - $chunk = mb_substr($str, $i, $offset, $this->CharSet); - $chunk = base64_encode($chunk); - $lookBack++; - } while (strlen($chunk) > $length); - $encoded .= $chunk . $linebreak; - } - - // Chomp the last linefeed - $encoded = substr($encoded, 0, -strlen($linebreak)); - return $encoded; - } - - /** - * Encode a string in quoted-printable format. - * According to RFC2045 section 6.7. - * @access public - * @param string $string The text to encode - * @param integer $line_max Number of chars allowed on a line before wrapping - * @return string - * @link http://www.php.net/manual/en/function.quoted-printable-decode.php#89417 Adapted from this comment - */ - public function encodeQP($string, $line_max = 76) - { - // Use native function if it's available (>= PHP5.3) - if (function_exists('quoted_printable_encode')) { - return quoted_printable_encode($string); - } - // Fall back to a pure PHP implementation - $string = str_replace( - array('%20', '%0D%0A.', '%0D%0A', '%'), - array(' ', "\r\n=2E", "\r\n", '='), - rawurlencode($string) - ); - return preg_replace('/[^\r\n]{' . ($line_max - 3) . '}[^=\r\n]{2}/', "$0=\r\n", $string); - } - - /** - * Backward compatibility wrapper for an old QP encoding function that was removed. - * @see PHPMailer::encodeQP() - * @access public - * @param string $string - * @param integer $line_max - * @param boolean $space_conv - * @return string - * @deprecated Use encodeQP instead. - */ - public function encodeQPphp( - $string, - $line_max = 76, - /** @noinspection PhpUnusedParameterInspection */ $space_conv = false - ) { - return $this->encodeQP($string, $line_max); - } - - /** - * Encode a string using Q encoding. - * @link http://tools.ietf.org/html/rfc2047 - * @param string $str the text to encode - * @param string $position Where the text is going to be used, see the RFC for what that means - * @access public - * @return string - */ - public function encodeQ($str, $position = 'text') - { - // There should not be any EOL in the string - $pattern = ''; - $encoded = str_replace(array("\r", "\n"), '', $str); - switch (strtolower($position)) { - case 'phrase': - // RFC 2047 section 5.3 - $pattern = '^A-Za-z0-9!*+\/ -'; - break; - /** @noinspection PhpMissingBreakStatementInspection */ - case 'comment': - // RFC 2047 section 5.2 - $pattern = '\(\)"'; - // intentional fall-through - // for this reason we build the $pattern without including delimiters and [] - case 'text': - default: - // RFC 2047 section 5.1 - // Replace every high ascii, control, =, ? and _ characters - $pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern; - break; - } - $matches = array(); - if (preg_match_all("/[{$pattern}]/", $encoded, $matches)) { - // If the string contains an '=', make sure it's the first thing we replace - // so as to avoid double-encoding - $eqkey = array_search('=', $matches[0]); - if (false !== $eqkey) { - unset($matches[0][$eqkey]); - array_unshift($matches[0], '='); - } - foreach (array_unique($matches[0]) as $char) { - $encoded = str_replace($char, '=' . sprintf('%02X', ord($char)), $encoded); - } - } - // Replace every spaces to _ (more readable than =20) - return str_replace(' ', '_', $encoded); - } - - /** - * Add a string or binary attachment (non-filesystem). - * This method can be used to attach ascii or binary data, - * such as a BLOB record from a database. - * @param string $string String attachment data. - * @param string $filename Name of the attachment. - * @param string $encoding File encoding (see $Encoding). - * @param string $type File extension (MIME) type. - * @param string $disposition Disposition to use - * @return void - */ - public function addStringAttachment( - $string, - $filename, - $encoding = 'base64', - $type = '', - $disposition = 'attachment' - ) { - // If a MIME type is not specified, try to work it out from the file name - if ($type == '') { - $type = self::filenameToType($filename); - } - // Append to $attachment array - $this->attachment[] = array( - 0 => $string, - 1 => $filename, - 2 => basename($filename), - 3 => $encoding, - 4 => $type, - 5 => true, // isStringAttachment - 6 => $disposition, - 7 => 0 - ); - } - - /** - * Add an embedded (inline) attachment from a file. - * This can include images, sounds, and just about any other document type. - * These differ from 'regular' attachments in that they are intended to be - * displayed inline with the message, not just attached for download. - * This is used in HTML messages that embed the images - * the HTML refers to using the $cid value. - * Never use a user-supplied path to a file! - * @param string $path Path to the attachment. - * @param string $cid Content ID of the attachment; Use this to reference - * the content when using an embedded image in HTML. - * @param string $name Overrides the attachment name. - * @param string $encoding File encoding (see $Encoding). - * @param string $type File MIME type. - * @param string $disposition Disposition to use - * @return boolean True on successfully adding an attachment - */ - public function addEmbeddedImage($path, $cid, $name = '', $encoding = 'base64', $type = '', $disposition = 'inline') - { - if (!self::isPermittedPath($path) or !@is_file($path)) { - $this->setError($this->lang('file_access') . $path); - return false; - } - - // If a MIME type is not specified, try to work it out from the file name - if ($type == '') { - $type = self::filenameToType($path); - } - - $filename = basename($path); - if ($name == '') { - $name = $filename; - } - - // Append to $attachment array - $this->attachment[] = array( - 0 => $path, - 1 => $filename, - 2 => $name, - 3 => $encoding, - 4 => $type, - 5 => false, // isStringAttachment - 6 => $disposition, - 7 => $cid - ); - return true; - } - - /** - * Add an embedded stringified attachment. - * This can include images, sounds, and just about any other document type. - * Be sure to set the $type to an image type for images: - * JPEG images use 'image/jpeg', GIF uses 'image/gif', PNG uses 'image/png'. - * @param string $string The attachment binary data. - * @param string $cid Content ID of the attachment; Use this to reference - * the content when using an embedded image in HTML. - * @param string $name - * @param string $encoding File encoding (see $Encoding). - * @param string $type MIME type. - * @param string $disposition Disposition to use - * @return boolean True on successfully adding an attachment - */ - public function addStringEmbeddedImage( - $string, - $cid, - $name = '', - $encoding = 'base64', - $type = '', - $disposition = 'inline' - ) { - // If a MIME type is not specified, try to work it out from the name - if ($type == '' and !empty($name)) { - $type = self::filenameToType($name); - } - - // Append to $attachment array - $this->attachment[] = array( - 0 => $string, - 1 => $name, - 2 => $name, - 3 => $encoding, - 4 => $type, - 5 => true, // isStringAttachment - 6 => $disposition, - 7 => $cid - ); - return true; - } - - /** - * Check if an inline attachment is present. - * @access public - * @return boolean - */ - public function inlineImageExists() - { - foreach ($this->attachment as $attachment) { - if ($attachment[6] == 'inline') { - return true; - } - } - return false; - } - - /** - * Check if an attachment (non-inline) is present. - * @return boolean - */ - public function attachmentExists() - { - foreach ($this->attachment as $attachment) { - if ($attachment[6] == 'attachment') { - return true; - } - } - return false; - } - - /** - * Check if this message has an alternative body set. - * @return boolean - */ - public function alternativeExists() - { - return !empty($this->AltBody); - } - - /** - * Clear queued addresses of given kind. - * @access protected - * @param string $kind 'to', 'cc', or 'bcc' - * @return void - */ - public function clearQueuedAddresses($kind) - { - $RecipientsQueue = $this->RecipientsQueue; - foreach ($RecipientsQueue as $address => $params) { - if ($params[0] == $kind) { - unset($this->RecipientsQueue[$address]); - } - } - } - - /** - * Clear all To recipients. - * @return void - */ - public function clearAddresses() - { - foreach ($this->to as $to) { - unset($this->all_recipients[strtolower($to[0])]); - } - $this->to = array(); - $this->clearQueuedAddresses('to'); - } - - /** - * Clear all CC recipients. - * @return void - */ - public function clearCCs() - { - foreach ($this->cc as $cc) { - unset($this->all_recipients[strtolower($cc[0])]); - } - $this->cc = array(); - $this->clearQueuedAddresses('cc'); - } - - /** - * Clear all BCC recipients. - * @return void - */ - public function clearBCCs() - { - foreach ($this->bcc as $bcc) { - unset($this->all_recipients[strtolower($bcc[0])]); - } - $this->bcc = array(); - $this->clearQueuedAddresses('bcc'); - } - - /** - * Clear all ReplyTo recipients. - * @return void - */ - public function clearReplyTos() - { - $this->ReplyTo = array(); - $this->ReplyToQueue = array(); - } - - /** - * Clear all recipient types. - * @return void - */ - public function clearAllRecipients() - { - $this->to = array(); - $this->cc = array(); - $this->bcc = array(); - $this->all_recipients = array(); - $this->RecipientsQueue = array(); - } - - /** - * Clear all filesystem, string, and binary attachments. - * @return void - */ - public function clearAttachments() - { - $this->attachment = array(); - } - - /** - * Clear all custom headers. - * @return void - */ - public function clearCustomHeaders() - { - $this->CustomHeader = array(); - } - - /** - * Add an error message to the error container. - * @access protected - * @param string $msg - * @return void - */ - protected function setError($msg) - { - $this->error_count++; - if ($this->Mailer == 'smtp' and !is_null($this->smtp)) { - $lasterror = $this->smtp->getError(); - if (!empty($lasterror['error'])) { - $msg .= $this->lang('smtp_error') . $lasterror['error']; - if (!empty($lasterror['detail'])) { - $msg .= ' Detail: '. $lasterror['detail']; - } - if (!empty($lasterror['smtp_code'])) { - $msg .= ' SMTP code: ' . $lasterror['smtp_code']; - } - if (!empty($lasterror['smtp_code_ex'])) { - $msg .= ' Additional SMTP info: ' . $lasterror['smtp_code_ex']; - } - } - } - $this->ErrorInfo = $msg; - } - - /** - * Return an RFC 822 formatted date. - * @access public - * @return string - * @static - */ - public static function rfcDate() - { - // Set the time zone to whatever the default is to avoid 500 errors - // Will default to UTC if it's not set properly in php.ini - date_default_timezone_set(@date_default_timezone_get()); - return date('D, j M Y H:i:s O'); - } - - /** - * Get the server hostname. - * Returns 'localhost.localdomain' if unknown. - * @access protected - * @return string - */ - protected function serverHostname() - { - $result = 'localhost.localdomain'; - if (!empty($this->Hostname)) { - $result = $this->Hostname; - } elseif (isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER) and !empty($_SERVER['SERVER_NAME'])) { - $result = $_SERVER['SERVER_NAME']; - } elseif (function_exists('gethostname') && gethostname() !== false) { - $result = gethostname(); - } elseif (php_uname('n') !== false) { - $result = php_uname('n'); - } - return $result; - } - - /** - * Get an error message in the current language. - * @access protected - * @param string $key - * @return string - */ - protected function lang($key) - { - if (count($this->language) < 1) { - $this->setLanguage('en'); // set the default language - } - - if (array_key_exists($key, $this->language)) { - if ($key == 'smtp_connect_failed') { - //Include a link to troubleshooting docs on SMTP connection failure - //this is by far the biggest cause of support questions - //but it's usually not PHPMailer's fault. - return $this->language[$key] . ' https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting'; - } - return $this->language[$key]; - } else { - //Return the key as a fallback - return $key; - } - } - - /** - * Check if an error occurred. - * @access public - * @return boolean True if an error did occur. - */ - public function isError() - { - return ($this->error_count > 0); - } - - /** - * Ensure consistent line endings in a string. - * Changes every end of line from CRLF, CR or LF to $this->LE. - * @access public - * @param string $str String to fixEOL - * @return string - */ - public function fixEOL($str) - { - // Normalise to \n - $nstr = str_replace(array("\r\n", "\r"), "\n", $str); - // Now convert LE as needed - if ($this->LE !== "\n") { - $nstr = str_replace("\n", $this->LE, $nstr); - } - return $nstr; - } - - /** - * Add a custom header. - * $name value can be overloaded to contain - * both header name and value (name:value) - * @access public - * @param string $name Custom header name - * @param string $value Header value - * @return void - */ - public function addCustomHeader($name, $value = null) - { - if ($value === null) { - // Value passed in as name:value - $this->CustomHeader[] = explode(':', $name, 2); - } else { - $this->CustomHeader[] = array($name, $value); - } - } - - /** - * Returns all custom headers. - * @return array - */ - public function getCustomHeaders() - { - return $this->CustomHeader; - } - - /** - * Create a message body from an HTML string. - * Automatically inlines images and creates a plain-text version by converting the HTML, - * overwriting any existing values in Body and AltBody. - * Do not source $message content from user input! - * $basedir is prepended when handling relative URLs, e.g.
and must not be empty
- * will look for an image file in $basedir/images/a.png and convert it to inline.
- * If you don't provide a $basedir, relative paths will be left untouched (and thus probably break in email)
- * If you don't want to apply these transformations to your HTML, just set Body and AltBody directly.
- * @access public
- * @param string $message HTML message string
- * @param string $basedir Absolute path to a base directory to prepend to relative paths to images
- * @param boolean|callable $advanced Whether to use the internal HTML to text converter
- * or your own custom converter @see PHPMailer::html2text()
- * @return string $message The transformed message Body
- */
- public function msgHTML($message, $basedir = '', $advanced = false)
- {
- preg_match_all('/(src|background)=["\'](.*)["\']/Ui', $message, $images);
- if (array_key_exists(2, $images)) {
- if (strlen($basedir) > 1 && substr($basedir, -1) != '/') {
- // Ensure $basedir has a trailing /
- $basedir .= '/';
- }
- foreach ($images[2] as $imgindex => $url) {
- // Convert data URIs into embedded images
- if (preg_match('#^data:(image[^;,]*)(;base64)?,#', $url, $match)) {
- $data = substr($url, strpos($url, ','));
- if ($match[2]) {
- $data = base64_decode($data);
- } else {
- $data = rawurldecode($data);
- }
- $cid = md5($url) . '@phpmailer.0'; // RFC2392 S 2
- if ($this->addStringEmbeddedImage($data, $cid, 'embed' . $imgindex, 'base64', $match[1])) {
- $message = str_replace(
- $images[0][$imgindex],
- $images[1][$imgindex] . '="cid:' . $cid . '"',
- $message
- );
- }
- continue;
- }
- if (
- // Only process relative URLs if a basedir is provided (i.e. no absolute local paths)
- !empty($basedir)
- // Ignore URLs containing parent dir traversal (..)
- && (strpos($url, '..') === false)
- // Do not change urls that are already inline images
- && substr($url, 0, 4) !== 'cid:'
- // Do not change absolute URLs, including anonymous protocol
- && !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url)
- ) {
- $filename = basename($url);
- $directory = dirname($url);
- if ($directory == '.') {
- $directory = '';
- }
- $cid = md5($url) . '@phpmailer.0'; // RFC2392 S 2
- if (strlen($directory) > 1 && substr($directory, -1) != '/') {
- $directory .= '/';
- }
- if ($this->addEmbeddedImage(
- $basedir . $directory . $filename,
- $cid,
- $filename,
- 'base64',
- self::_mime_types((string)self::mb_pathinfo($filename, PATHINFO_EXTENSION))
- )
- ) {
- $message = preg_replace(
- '/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui',
- $images[1][$imgindex] . '="cid:' . $cid . '"',
- $message
- );
- }
- }
- }
- }
- $this->isHTML(true);
- // Convert all message body line breaks to CRLF, makes quoted-printable encoding work much better
- $this->Body = $this->normalizeBreaks($message);
- $this->AltBody = $this->normalizeBreaks($this->html2text($message, $advanced));
- if (!$this->alternativeExists()) {
- $this->AltBody = 'To view this email message, open it in a program that understands HTML!' .
- self::CRLF . self::CRLF;
- }
- return $this->Body;
- }
-
- /**
- * Convert an HTML string into plain text.
- * This is used by msgHTML().
- * Note - older versions of this function used a bundled advanced converter
- * which was been removed for license reasons in #232.
- * Example usage:
- *
- * // Use default conversion
- * $plain = $mail->html2text($html);
- * // Use your own custom converter
- * $plain = $mail->html2text($html, function($html) {
- * $converter = new MyHtml2text($html);
- * return $converter->get_text();
- * });
- *
- * @param string $html The HTML text to convert
- * @param boolean|callable $advanced Any boolean value to use the internal converter,
- * or provide your own callable for custom conversion.
- * @return string
- */
- public function html2text($html, $advanced = false)
- {
- if (is_callable($advanced)) {
- return call_user_func($advanced, $html);
- }
- return html_entity_decode(
- trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))),
- ENT_QUOTES,
- $this->CharSet
- );
- }
-
- /**
- * Get the MIME type for a file extension.
- * @param string $ext File extension
- * @access public
- * @return string MIME type of file.
- * @static
- */
- public static function _mime_types($ext = '')
- {
- $mimes = array(
- 'xl' => 'application/excel',
- 'js' => 'application/javascript',
- 'hqx' => 'application/mac-binhex40',
- 'cpt' => 'application/mac-compactpro',
- 'bin' => 'application/macbinary',
- 'doc' => 'application/msword',
- 'word' => 'application/msword',
- 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
- 'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
- 'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
- 'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
- 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
- 'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide',
- 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
- 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
- 'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12',
- 'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
- 'class' => 'application/octet-stream',
- 'dll' => 'application/octet-stream',
- 'dms' => 'application/octet-stream',
- 'exe' => 'application/octet-stream',
- 'lha' => 'application/octet-stream',
- 'lzh' => 'application/octet-stream',
- 'psd' => 'application/octet-stream',
- 'sea' => 'application/octet-stream',
- 'so' => 'application/octet-stream',
- 'oda' => 'application/oda',
- 'pdf' => 'application/pdf',
- 'ai' => 'application/postscript',
- 'eps' => 'application/postscript',
- 'ps' => 'application/postscript',
- 'smi' => 'application/smil',
- 'smil' => 'application/smil',
- 'mif' => 'application/vnd.mif',
- 'xls' => 'application/vnd.ms-excel',
- 'ppt' => 'application/vnd.ms-powerpoint',
- 'wbxml' => 'application/vnd.wap.wbxml',
- 'wmlc' => 'application/vnd.wap.wmlc',
- 'dcr' => 'application/x-director',
- 'dir' => 'application/x-director',
- 'dxr' => 'application/x-director',
- 'dvi' => 'application/x-dvi',
- 'gtar' => 'application/x-gtar',
- 'php3' => 'application/x-httpd-php',
- 'php4' => 'application/x-httpd-php',
- 'php' => 'application/x-httpd-php',
- 'phtml' => 'application/x-httpd-php',
- 'phps' => 'application/x-httpd-php-source',
- 'swf' => 'application/x-shockwave-flash',
- 'sit' => 'application/x-stuffit',
- 'tar' => 'application/x-tar',
- 'tgz' => 'application/x-tar',
- 'xht' => 'application/xhtml+xml',
- 'xhtml' => 'application/xhtml+xml',
- 'zip' => 'application/zip',
- 'mid' => 'audio/midi',
- 'midi' => 'audio/midi',
- 'mp2' => 'audio/mpeg',
- 'mp3' => 'audio/mpeg',
- 'mpga' => 'audio/mpeg',
- 'aif' => 'audio/x-aiff',
- 'aifc' => 'audio/x-aiff',
- 'aiff' => 'audio/x-aiff',
- 'ram' => 'audio/x-pn-realaudio',
- 'rm' => 'audio/x-pn-realaudio',
- 'rpm' => 'audio/x-pn-realaudio-plugin',
- 'ra' => 'audio/x-realaudio',
- 'wav' => 'audio/x-wav',
- 'bmp' => 'image/bmp',
- 'gif' => 'image/gif',
- 'jpeg' => 'image/jpeg',
- 'jpe' => 'image/jpeg',
- 'jpg' => 'image/jpeg',
- 'png' => 'image/png',
- 'tiff' => 'image/tiff',
- 'tif' => 'image/tiff',
- 'eml' => 'message/rfc822',
- 'css' => 'text/css',
- 'html' => 'text/html',
- 'htm' => 'text/html',
- 'shtml' => 'text/html',
- 'log' => 'text/plain',
- 'text' => 'text/plain',
- 'txt' => 'text/plain',
- 'rtx' => 'text/richtext',
- 'rtf' => 'text/rtf',
- 'vcf' => 'text/vcard',
- 'vcard' => 'text/vcard',
- 'xml' => 'text/xml',
- 'xsl' => 'text/xml',
- 'mpeg' => 'video/mpeg',
- 'mpe' => 'video/mpeg',
- 'mpg' => 'video/mpeg',
- 'mov' => 'video/quicktime',
- 'qt' => 'video/quicktime',
- 'rv' => 'video/vnd.rn-realvideo',
- 'avi' => 'video/x-msvideo',
- 'movie' => 'video/x-sgi-movie'
- );
- if (array_key_exists(strtolower($ext), $mimes)) {
- return $mimes[strtolower($ext)];
- }
- return 'application/octet-stream';
- }
-
- /**
- * Map a file name to a MIME type.
- * Defaults to 'application/octet-stream', i.e.. arbitrary binary data.
- * @param string $filename A file name or full path, does not need to exist as a file
- * @return string
- * @static
- */
- public static function filenameToType($filename)
- {
- // In case the path is a URL, strip any query string before getting extension
- $qpos = strpos($filename, '?');
- if (false !== $qpos) {
- $filename = substr($filename, 0, $qpos);
- }
- $pathinfo = self::mb_pathinfo($filename);
- return self::_mime_types($pathinfo['extension']);
- }
-
- /**
- * Multi-byte-safe pathinfo replacement.
- * Drop-in replacement for pathinfo(), but multibyte-safe, cross-platform-safe, old-version-safe.
- * Works similarly to the one in PHP >= 5.2.0
- * @link http://www.php.net/manual/en/function.pathinfo.php#107461
- * @param string $path A filename or path, does not need to exist as a file
- * @param integer|string $options Either a PATHINFO_* constant,
- * or a string name to return only the specified piece, allows 'filename' to work on PHP < 5.2
- * @return string|array
- * @static
- */
- public static function mb_pathinfo($path, $options = null)
- {
- $ret = array('dirname' => '', 'basename' => '', 'extension' => '', 'filename' => '');
- $pathinfo = array();
- if (preg_match('%^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$%im', $path, $pathinfo)) {
- if (array_key_exists(1, $pathinfo)) {
- $ret['dirname'] = $pathinfo[1];
- }
- if (array_key_exists(2, $pathinfo)) {
- $ret['basename'] = $pathinfo[2];
- }
- if (array_key_exists(5, $pathinfo)) {
- $ret['extension'] = $pathinfo[5];
- }
- if (array_key_exists(3, $pathinfo)) {
- $ret['filename'] = $pathinfo[3];
- }
- }
- switch ($options) {
- case PATHINFO_DIRNAME:
- case 'dirname':
- return $ret['dirname'];
- case PATHINFO_BASENAME:
- case 'basename':
- return $ret['basename'];
- case PATHINFO_EXTENSION:
- case 'extension':
- return $ret['extension'];
- case PATHINFO_FILENAME:
- case 'filename':
- return $ret['filename'];
- default:
- return $ret;
- }
- }
-
- /**
- * Set or reset instance properties.
- * You should avoid this function - it's more verbose, less efficient, more error-prone and
- * harder to debug than setting properties directly.
- * Usage Example:
- * `$mail->set('SMTPSecure', 'tls');`
- * is the same as:
- * `$mail->SMTPSecure = 'tls';`
- * @access public
- * @param string $name The property name to set
- * @param mixed $value The value to set the property to
- * @return boolean
- * @TODO Should this not be using the __set() magic function?
- */
- public function set($name, $value = '')
- {
- if (property_exists($this, $name)) {
- $this->$name = $value;
- return true;
- } else {
- $this->setError($this->lang('variable_set') . $name);
- return false;
- }
- }
-
- /**
- * Strip newlines to prevent header injection.
- * @access public
- * @param string $str
- * @return string
- */
- public function secureHeader($str)
- {
- return trim(str_replace(array("\r", "\n"), '', $str));
- }
-
- /**
- * Normalize line breaks in a string.
- * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format.
- * Defaults to CRLF (for message bodies) and preserves consecutive breaks.
- * @param string $text
- * @param string $breaktype What kind of line break to use, defaults to CRLF
- * @return string
- * @access public
- * @static
- */
- public static function normalizeBreaks($text, $breaktype = "\r\n")
- {
- return preg_replace('/(\r\n|\r|\n)/ms', $breaktype, $text);
- }
-
- /**
- * Set the public and private key files and password for S/MIME signing.
- * @access public
- * @param string $cert_filename
- * @param string $key_filename
- * @param string $key_pass Password for private key
- * @param string $extracerts_filename Optional path to chain certificate
- */
- public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '')
- {
- $this->sign_cert_file = $cert_filename;
- $this->sign_key_file = $key_filename;
- $this->sign_key_pass = $key_pass;
- $this->sign_extracerts_file = $extracerts_filename;
- }
-
- /**
- * Quoted-Printable-encode a DKIM header.
- * @access public
- * @param string $txt
- * @return string
- */
- public function DKIM_QP($txt)
- {
- $line = '';
- for ($i = 0; $i < strlen($txt); $i++) {
- $ord = ord($txt[$i]);
- if (((0x21 <= $ord) && ($ord <= 0x3A)) || $ord == 0x3C || ((0x3E <= $ord) && ($ord <= 0x7E))) {
- $line .= $txt[$i];
- } else {
- $line .= '=' . sprintf('%02X', $ord);
- }
- }
- return $line;
- }
-
- /**
- * Generate a DKIM signature.
- * @access public
- * @param string $signHeader
- * @throws phpmailerException
- * @return string The DKIM signature value
- */
- public function DKIM_Sign($signHeader)
- {
- if (!defined('PKCS7_TEXT')) {
- if ($this->exceptions) {
- throw new phpmailerException($this->lang('extension_missing') . 'openssl');
- }
- return '';
- }
- $privKeyStr = !empty($this->DKIM_private_string) ? $this->DKIM_private_string : file_get_contents($this->DKIM_private);
- if ('' != $this->DKIM_passphrase) {
- $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
- } else {
- $privKey = openssl_pkey_get_private($privKeyStr);
- }
- //Workaround for missing digest algorithms in old PHP & OpenSSL versions
- //@link http://stackoverflow.com/a/11117338/333340
- if (version_compare(PHP_VERSION, '5.3.0') >= 0 and
- in_array('sha256WithRSAEncryption', openssl_get_md_methods(true))) {
- if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) {
- openssl_pkey_free($privKey);
- return base64_encode($signature);
- }
- } else {
- $pinfo = openssl_pkey_get_details($privKey);
- $hash = hash('sha256', $signHeader);
- //'Magic' constant for SHA256 from RFC3447
- //@link https://tools.ietf.org/html/rfc3447#page-43
- $t = '3031300d060960864801650304020105000420' . $hash;
- $pslen = $pinfo['bits'] / 8 - (strlen($t) / 2 + 3);
- $eb = pack('H*', '0001' . str_repeat('FF', $pslen) . '00' . $t);
-
- if (openssl_private_encrypt($eb, $signature, $privKey, OPENSSL_NO_PADDING)) {
- openssl_pkey_free($privKey);
- return base64_encode($signature);
- }
- }
- openssl_pkey_free($privKey);
- return '';
- }
-
- /**
- * Generate a DKIM canonicalization header.
- * @access public
- * @param string $signHeader Header
- * @return string
- */
- public function DKIM_HeaderC($signHeader)
- {
- $signHeader = preg_replace('/\r\n\s+/', ' ', $signHeader);
- $lines = explode("\r\n", $signHeader);
- foreach ($lines as $key => $line) {
- list($heading, $value) = explode(':', $line, 2);
- $heading = strtolower($heading);
- $value = preg_replace('/\s{2,}/', ' ', $value); // Compress useless spaces
- $lines[$key] = $heading . ':' . trim($value); // Don't forget to remove WSP around the value
- }
- $signHeader = implode("\r\n", $lines);
- return $signHeader;
- }
-
- /**
- * Generate a DKIM canonicalization body.
- * @access public
- * @param string $body Message Body
- * @return string
- */
- public function DKIM_BodyC($body)
- {
- if ($body == '') {
- return "\r\n";
- }
- // stabilize line endings
- $body = str_replace("\r\n", "\n", $body);
- $body = str_replace("\n", "\r\n", $body);
- // END stabilize line endings
- while (substr($body, strlen($body) - 4, 4) == "\r\n\r\n") {
- $body = substr($body, 0, strlen($body) - 2);
- }
- return $body;
- }
-
- /**
- * Create the DKIM header and body in a new message header.
- * @access public
- * @param string $headers_line Header lines
- * @param string $subject Subject
- * @param string $body Body
- * @return string
- */
- public function DKIM_Add($headers_line, $subject, $body)
- {
- $DKIMsignatureType = 'rsa-sha256'; // Signature & hash algorithms
- $DKIMcanonicalization = 'relaxed/simple'; // Canonicalization of header/body
- $DKIMquery = 'dns/txt'; // Query method
- $DKIMtime = time(); // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone)
- $subject_header = "Subject: $subject";
- $headers = explode($this->LE, $headers_line);
- $from_header = '';
- $to_header = '';
- $date_header = '';
- $current = '';
- foreach ($headers as $header) {
- if (strpos($header, 'From:') === 0) {
- $from_header = $header;
- $current = 'from_header';
- } elseif (strpos($header, 'To:') === 0) {
- $to_header = $header;
- $current = 'to_header';
- } elseif (strpos($header, 'Date:') === 0) {
- $date_header = $header;
- $current = 'date_header';
- } else {
- if (!empty($$current) && strpos($header, ' =?') === 0) {
- $$current .= $header;
- } else {
- $current = '';
- }
- }
- }
- $from = str_replace('|', '=7C', $this->DKIM_QP($from_header));
- $to = str_replace('|', '=7C', $this->DKIM_QP($to_header));
- $date = str_replace('|', '=7C', $this->DKIM_QP($date_header));
- $subject = str_replace(
- '|',
- '=7C',
- $this->DKIM_QP($subject_header)
- ); // Copied header fields (dkim-quoted-printable)
- $body = $this->DKIM_BodyC($body);
- $DKIMlen = strlen($body); // Length of body
- $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body))); // Base64 of packed binary SHA-256 hash of body
- if ('' == $this->DKIM_identity) {
- $ident = '';
- } else {
- $ident = ' i=' . $this->DKIM_identity . ';';
- }
- $dkimhdrs = 'DKIM-Signature: v=1; a=' .
- $DKIMsignatureType . '; q=' .
- $DKIMquery . '; l=' .
- $DKIMlen . '; s=' .
- $this->DKIM_selector .
- ";\r\n" .
- "\tt=" . $DKIMtime . '; c=' . $DKIMcanonicalization . ";\r\n" .
- "\th=From:To:Date:Subject;\r\n" .
- "\td=" . $this->DKIM_domain . ';' . $ident . "\r\n" .
- "\tz=$from\r\n" .
- "\t|$to\r\n" .
- "\t|$date\r\n" .
- "\t|$subject;\r\n" .
- "\tbh=" . $DKIMb64 . ";\r\n" .
- "\tb=";
- $toSign = $this->DKIM_HeaderC(
- $from_header . "\r\n" .
- $to_header . "\r\n" .
- $date_header . "\r\n" .
- $subject_header . "\r\n" .
- $dkimhdrs
- );
- $signed = $this->DKIM_Sign($toSign);
- return $dkimhdrs . $signed . "\r\n";
- }
-
- /**
- * Detect if a string contains a line longer than the maximum line length allowed.
- * @param string $str
- * @return boolean
- * @static
- */
- public static function hasLineLongerThanMax($str)
- {
- //+2 to include CRLF line break for a 1000 total
- return (boolean)preg_match('/^(.{'.(self::MAX_LINE_LENGTH + 2).',})/m', $str);
- }
-
- /**
- * Allows for public read access to 'to' property.
- * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
- * @access public
- * @return array
- */
- public function getToAddresses()
- {
- return $this->to;
- }
-
- /**
- * Allows for public read access to 'cc' property.
- * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
- * @access public
- * @return array
- */
- public function getCcAddresses()
- {
- return $this->cc;
- }
-
- /**
- * Allows for public read access to 'bcc' property.
- * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
- * @access public
- * @return array
- */
- public function getBccAddresses()
- {
- return $this->bcc;
- }
-
- /**
- * Allows for public read access to 'ReplyTo' property.
- * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
- * @access public
- * @return array
- */
- public function getReplyToAddresses()
- {
- return $this->ReplyTo;
- }
-
- /**
- * Allows for public read access to 'all_recipients' property.
- * @note: Before the send() call, queued addresses (i.e. with IDN) are not yet included.
- * @access public
- * @return array
- */
- public function getAllRecipientAddresses()
- {
- return $this->all_recipients;
- }
-
- /**
- * Perform a callback.
- * @param boolean $isSent
- * @param array $to
- * @param array $cc
- * @param array $bcc
- * @param string $subject
- * @param string $body
- * @param string $from
- */
- protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from)
- {
- if (!empty($this->action_function) && is_callable($this->action_function)) {
- $params = array($isSent, $to, $cc, $bcc, $subject, $body, $from);
- call_user_func_array($this->action_function, $params);
- }
- }
-}
-
-/**
- * PHPMailer exception handler
- * @package PHPMailer
- */
-class phpmailerException extends Exception
-{
- /**
- * Prettify error message output
- * @return string
- */
- public function errorMessage()
- {
- $errorMsg = '' . htmlspecialchars($this->getMessage()) . "\n"; - return $errorMsg; - } -} +class_alias( PHPMailer\PHPMailer\PHPMailer::class, 'PHPMailer' ); diff --git a/src/wp-includes/class-smtp.php b/src/wp-includes/class-smtp.php index 8b11c73f22..28144c7125 100644 --- a/src/wp-includes/class-smtp.php +++ b/src/wp-includes/class-smtp.php @@ -1,1213 +1,7 @@ - * @author Jim Jagielski (jimjag)
`, appropriate for browser output - * * `error_log` Output to error log as configured in php.ini - * - * Alternatively, you can provide a callable expecting two params: a message string and the debug level: - *
- * $smtp->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
- *
- * @var string|callable
- */
- public $Debugoutput = 'echo';
-
- /**
- * Whether to use VERP.
- * @link http://en.wikipedia.org/wiki/Variable_envelope_return_path
- * @link http://www.postfix.org/VERP_README.html Info on VERP
- * @var boolean
- */
- public $do_verp = false;
-
- /**
- * The timeout value for connection, in seconds.
- * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2
- * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure.
- * @link http://tools.ietf.org/html/rfc2821#section-4.5.3.2
- * @var integer
- */
- public $Timeout = 300;
-
- /**
- * How long to wait for commands to complete, in seconds.
- * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2
- * @var integer
- */
- public $Timelimit = 300;
-
- /**
- * @var array Patterns to extract an SMTP transaction id from reply to a DATA command.
- * The first capture group in each regex will be used as the ID.
- */
- protected $smtp_transaction_id_patterns = array(
- 'exim' => '/[0-9]{3} OK id=(.*)/',
- 'sendmail' => '/[0-9]{3} 2.0.0 (.*) Message/',
- 'postfix' => '/[0-9]{3} 2.0.0 Ok: queued as (.*)/'
- );
-
- /**
- * @var string The last transaction ID issued in response to a DATA command,
- * if one was detected
- */
- protected $last_smtp_transaction_id;
-
- /**
- * The socket for the server connection.
- * @var resource
- */
- protected $smtp_conn;
-
- /**
- * Error information, if any, for the last SMTP command.
- * @var array
- */
- protected $error = array(
- 'error' => '',
- 'detail' => '',
- 'smtp_code' => '',
- 'smtp_code_ex' => ''
- );
-
- /**
- * The reply the server sent to us for HELO.
- * If null, no HELO string has yet been received.
- * @var string|null
- */
- protected $helo_rply = null;
-
- /**
- * The set of SMTP extensions sent in reply to EHLO command.
- * Indexes of the array are extension names.
- * Value at index 'HELO' or 'EHLO' (according to command that was sent)
- * represents the server name. In case of HELO it is the only element of the array.
- * Other values can be boolean TRUE or an array containing extension options.
- * If null, no HELO/EHLO string has yet been received.
- * @var array|null
- */
- protected $server_caps = null;
-
- /**
- * The most recent reply received from the server.
- * @var string
- */
- protected $last_reply = '';
-
- /**
- * Output debugging info via a user-selected method.
- * @see SMTP::$Debugoutput
- * @see SMTP::$do_debug
- * @param string $str Debug string to output
- * @param integer $level The debug level of this message; see DEBUG_* constants
- * @return void
- */
- protected function edebug($str, $level = 0)
- {
- if ($level > $this->do_debug) {
- return;
- }
- //Avoid clash with built-in function names
- if (!in_array($this->Debugoutput, array('error_log', 'html', 'echo')) and is_callable($this->Debugoutput)) {
- call_user_func($this->Debugoutput, $str, $level);
- return;
- }
- switch ($this->Debugoutput) {
- case 'error_log':
- //Don't output, just log
- error_log($str);
- break;
- case 'html':
- //Cleans up output a bit for a better looking, HTML-safe output
- echo gmdate('Y-m-d H:i:s') . ' ' . htmlentities(
- preg_replace('/[\r\n]+/', '', $str),
- ENT_QUOTES,
- 'UTF-8'
- ) . "\n"; - break; - case 'echo': - default: - //Normalize line breaks - $str = preg_replace('/(\r\n|\r|\n)/ms', "\n", $str); - echo gmdate('Y-m-d H:i:s') . "\t" . str_replace( - "\n", - "\n \t ", - trim($str) - ) . "\n"; - } - } - - /** - * Connect to an SMTP server. - * @param string $host SMTP server IP or host name - * @param integer $port The port number to connect to - * @param integer $timeout How long to wait for the connection to open - * @param array $options An array of options for stream_context_create() - * @access public - * @return boolean - */ - public function connect($host, $port = null, $timeout = 30, $options = array()) - { - static $streamok; - //This is enabled by default since 5.0.0 but some providers disable it - //Check this once and cache the result - if (is_null($streamok)) { - $streamok = function_exists('stream_socket_client'); - } - // Clear errors to avoid confusion - $this->setError(''); - // Make sure we are __not__ connected - if ($this->connected()) { - // Already connected, generate error - $this->setError('Already connected to a server'); - return false; - } - if (empty($port)) { - $port = self::DEFAULT_SMTP_PORT; - } - // Connect to the SMTP server - $this->edebug( - "Connection: opening to $host:$port, timeout=$timeout, options=" . - var_export($options, true), - self::DEBUG_CONNECTION - ); - $errno = 0; - $errstr = ''; - if ($streamok) { - $socket_context = stream_context_create($options); - set_error_handler(array($this, 'errorHandler')); - $this->smtp_conn = stream_socket_client( - $host . ":" . $port, - $errno, - $errstr, - $timeout, - STREAM_CLIENT_CONNECT, - $socket_context - ); - restore_error_handler(); - } else { - //Fall back to fsockopen which should work in more places, but is missing some features - $this->edebug( - "Connection: stream_socket_client not available, falling back to fsockopen", - self::DEBUG_CONNECTION - ); - set_error_handler(array($this, 'errorHandler')); - $this->smtp_conn = fsockopen( - $host, - $port, - $errno, - $errstr, - $timeout - ); - restore_error_handler(); - } - // Verify we connected properly - if (!is_resource($this->smtp_conn)) { - $this->setError( - 'Failed to connect to server', - $errno, - $errstr - ); - $this->edebug( - 'SMTP ERROR: ' . $this->error['error'] - . ": $errstr ($errno)", - self::DEBUG_CLIENT - ); - return false; - } - $this->edebug('Connection: opened', self::DEBUG_CONNECTION); - // SMTP server can take longer to respond, give longer timeout for first read - // Windows does not have support for this timeout function - if (substr(PHP_OS, 0, 3) != 'WIN') { - $max = ini_get('max_execution_time'); - // Don't bother if unlimited - if ($max != 0 && $timeout > $max) { - @set_time_limit($timeout); - } - stream_set_timeout($this->smtp_conn, $timeout, 0); - } - // Get any announcement - $announce = $this->get_lines(); - $this->edebug('SERVER -> CLIENT: ' . $announce, self::DEBUG_SERVER); - return true; - } - - /** - * Initiate a TLS (encrypted) session. - * @access public - * @return boolean - */ - public function startTLS() - { - if (!$this->sendCommand('STARTTLS', 'STARTTLS', 220)) { - return false; - } - - //Allow the best TLS version(s) we can - $crypto_method = STREAM_CRYPTO_METHOD_TLS_CLIENT; - - //PHP 5.6.7 dropped inclusion of TLS 1.1 and 1.2 in STREAM_CRYPTO_METHOD_TLS_CLIENT - //so add them back in manually if we can - if (defined('STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT')) { - $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT; - $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT; - } - - // Begin encrypted connection - set_error_handler(array($this, 'errorHandler')); - $crypto_ok = stream_socket_enable_crypto( - $this->smtp_conn, - true, - $crypto_method - ); - restore_error_handler(); - return $crypto_ok; - } - - /** - * Perform SMTP authentication. - * Must be run after hello(). - * @see hello() - * @param string $username The user name - * @param string $password The password - * @param string $authtype The auth type (PLAIN, LOGIN, CRAM-MD5) - * @param string $realm The auth realm for NTLM - * @param string $workstation The auth workstation for NTLM - * @param null|OAuth $OAuth An optional OAuth instance (@see PHPMailerOAuth) - * @return bool True if successfully authenticated.* @access public - */ - public function authenticate( - $username, - $password, - $authtype = null, - $realm = '', - $workstation = '', - $OAuth = null - ) { - if (!$this->server_caps) { - $this->setError('Authentication is not allowed before HELO/EHLO'); - return false; - } - - if (array_key_exists('EHLO', $this->server_caps)) { - // SMTP extensions are available; try to find a proper authentication method - if (!array_key_exists('AUTH', $this->server_caps)) { - $this->setError('Authentication is not allowed at this stage'); - // 'at this stage' means that auth may be allowed after the stage changes - // e.g. after STARTTLS - return false; - } - - self::edebug('Auth method requested: ' . ($authtype ? $authtype : 'UNKNOWN'), self::DEBUG_LOWLEVEL); - self::edebug( - 'Auth methods available on the server: ' . implode(',', $this->server_caps['AUTH']), - self::DEBUG_LOWLEVEL - ); - - if (empty($authtype)) { - foreach (array('CRAM-MD5', 'LOGIN', 'PLAIN') as $method) { - if (in_array($method, $this->server_caps['AUTH'])) { - $authtype = $method; - break; - } - } - if (empty($authtype)) { - $this->setError('No supported authentication methods found'); - return false; - } - self::edebug('Auth method selected: ' . $authtype, self::DEBUG_LOWLEVEL); - } - - if (!in_array($authtype, $this->server_caps['AUTH'])) { - $this->setError("The requested authentication method \"$authtype\" is not supported by the server"); - return false; - } - } elseif (empty($authtype)) { - $authtype = 'LOGIN'; - } - switch ($authtype) { - case 'PLAIN': - // Start authentication - if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) { - return false; - } - // Send encoded username and password - if (!$this->sendCommand( - 'User & Password', - base64_encode("\0" . $username . "\0" . $password), - 235 - ) - ) { - return false; - } - break; - case 'LOGIN': - // Start authentication - if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) { - return false; - } - if (!$this->sendCommand("Username", base64_encode($username), 334)) { - return false; - } - if (!$this->sendCommand("Password", base64_encode($password), 235)) { - return false; - } - break; - case 'CRAM-MD5': - // Start authentication - if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) { - return false; - } - // Get the challenge - $challenge = base64_decode(substr($this->last_reply, 4)); - - // Build the response - $response = $username . ' ' . $this->hmac($challenge, $password); - - // send encoded credentials - return $this->sendCommand('Username', base64_encode($response), 235); - default: - $this->setError("Authentication method \"$authtype\" is not supported"); - return false; - } - return true; - } - - /** - * Calculate an MD5 HMAC hash. - * Works like hash_hmac('md5', $data, $key) - * in case that function is not available - * @param string $data The data to hash - * @param string $key The key to hash with - * @access protected - * @return string - */ - protected function hmac($data, $key) - { - if (function_exists('hash_hmac')) { - return hash_hmac('md5', $data, $key); - } - - // The following borrowed from - // http://php.net/manual/en/function.mhash.php#27225 - - // RFC 2104 HMAC implementation for php. - // Creates an md5 HMAC. - // Eliminates the need to install mhash to compute a HMAC - // by Lance Rushing - - $bytelen = 64; // byte length for md5 - if (strlen($key) > $bytelen) { - $key = pack('H*', md5($key)); - } - $key = str_pad($key, $bytelen, chr(0x00)); - $ipad = str_pad('', $bytelen, chr(0x36)); - $opad = str_pad('', $bytelen, chr(0x5c)); - $k_ipad = $key ^ $ipad; - $k_opad = $key ^ $opad; - - return md5($k_opad . pack('H*', md5($k_ipad . $data))); - } - - /** - * Check connection state. - * @access public - * @return boolean True if connected. - */ - public function connected() - { - if (is_resource($this->smtp_conn)) { - $sock_status = stream_get_meta_data($this->smtp_conn); - if ($sock_status['eof']) { - // The socket is valid but we are not connected - $this->edebug( - 'SMTP NOTICE: EOF caught while checking if connected', - self::DEBUG_CLIENT - ); - $this->close(); - return false; - } - return true; // everything looks good - } - return false; - } - - /** - * Close the socket and clean up the state of the class. - * Don't use this function without first trying to use QUIT. - * @see quit() - * @access public - * @return void - */ - public function close() - { - $this->setError(''); - $this->server_caps = null; - $this->helo_rply = null; - if (is_resource($this->smtp_conn)) { - // close the connection and cleanup - fclose($this->smtp_conn); - $this->smtp_conn = null; //Makes for cleaner serialization - $this->edebug('Connection: closed', self::DEBUG_CONNECTION); - } - } - - /** - * Send an SMTP DATA command. - * Issues a data command and sends the msg_data to the server, - * finializing the mail transaction. $msg_data is the message - * that is to be send with the headers. Each header needs to be - * on a single line followed by a