enmi-conf.org: comparison wp/wp-includes/PHPMailer/PHPMailer.php

equal deleted inserted replaced

-:3d4e9c994f10
+:a86126ab1dd4
+<?php
+/**
+* PHPMailer - PHP email creation and transport class.
+* PHP Version 5.5.
+*
+* @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+*
+* @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+* @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+* @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+* @author    Brent R. Matzelle (original founder)
+* @copyright 2012 - 2019 Marcus Bointon
+* @copyright 2010 - 2012 Jim Jagielski
+* @copyright 2004 - 2009 Andy Prevost
+* @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+* @note      This program is distributed in the hope that it will be useful - WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+* FITNESS FOR A PARTICULAR PURPOSE.
+*/
+namespace PHPMailer\PHPMailer;
+/**
+* PHPMailer - PHP email creation and transport class.
+*
+* @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+* @author Jim Jagielski (jimjag) <jimjag@gmail.com>
+* @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+* @author Brent R. Matzelle (original founder)
+*/
+class PHPMailer
+{
+const CHARSET_ASCII = 'us-ascii';
+const CHARSET_ISO88591 = 'iso-8859-1';
+const CHARSET_UTF8 = 'utf-8';
+const CONTENT_TYPE_PLAINTEXT = 'text/plain';
+const CONTENT_TYPE_TEXT_CALENDAR = 'text/calendar';
+const CONTENT_TYPE_TEXT_HTML = 'text/html';
+const CONTENT_TYPE_MULTIPART_ALTERNATIVE = 'multipart/alternative';
+const CONTENT_TYPE_MULTIPART_MIXED = 'multipart/mixed';
+const CONTENT_TYPE_MULTIPART_RELATED = 'multipart/related';
+const ENCODING_7BIT = '7bit';
+const ENCODING_8BIT = '8bit';
+const ENCODING_BASE64 = 'base64';
+const ENCODING_BINARY = 'binary';
+const ENCODING_QUOTED_PRINTABLE = 'quoted-printable';
+const ENCRYPTION_STARTTLS = 'tls';
+const ENCRYPTION_SMTPS = 'ssl';
+const ICAL_METHOD_REQUEST = 'REQUEST';
+const ICAL_METHOD_PUBLISH = 'PUBLISH';
+const ICAL_METHOD_REPLY = 'REPLY';
+const ICAL_METHOD_ADD = 'ADD';
+const ICAL_METHOD_CANCEL = 'CANCEL';
+const ICAL_METHOD_REFRESH = 'REFRESH';
+const ICAL_METHOD_COUNTER = 'COUNTER';
+const ICAL_METHOD_DECLINECOUNTER = 'DECLINECOUNTER';
+/**
+* Email priority.
+* Options: null (default), 1 = High, 3 = Normal, 5 = low.
+* When null, the header is not set at all.
+*
+* @var int|null
+*/
+public $Priority;
+/**
+* The character set of the message.
+*
+* @var string
+*/
+public $CharSet = self::CHARSET_ISO88591;
+/**
+* The MIME Content-type of the message.
+*
+* @var string
+*/
+public $ContentType = self::CONTENT_TYPE_PLAINTEXT;
+/**
+* The message encoding.
+* Options: "8bit", "7bit", "binary", "base64", and "quoted-printable".
+*
+* @var string
+*/
+public $Encoding = self::ENCODING_8BIT;
+/**
+* Holds the most recent mailer error message.
+*
+* @var string
+*/
+public $ErrorInfo = '';
+/**
+* The From email address for the message.
+*
+* @var string
+*/
+public $From = 'root@localhost';
+/**
+* The From name of the message.
+*
+* @var string
+*/
+public $FromName = 'Root User';
+/**
+* The envelope sender of the message.
+* This will usually be turned into a Return-Path header by the receiver,
+* and is the address that bounces will be sent to.
+* If not empty, will be passed via `-f` to sendmail or as the 'MAIL FROM' value over SMTP.
+*
+* @var string
+*/
+public $Sender = '';
+/**
+* The Subject of the message.
+*
+* @var string
+*/
+public $Subject = '';
+/**
+* An HTML or plain text message body.
+* If HTML then call isHTML(true).
+*
+* @var string
+*/
+public $Body = '';
+/**
+* The plain-text message body.
+* This body can be read by mail clients that do not have HTML email
+* capability such as mutt & Eudora.
+* Clients that can read HTML will view the normal Body.
+*
+* @var string
+*/
+public $AltBody = '';
+/**
+* An iCal message part body.
+* Only supported in simple alt or alt_inline message types
+* To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator.
+*
+* @see http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
+* @see http://kigkonsult.se/iCalcreator/
+*
+* @var string
+*/
+public $Ical = '';
+/**
+* Value-array of "method" in Contenttype header "text/calendar"
+*
+* @var string[]
+*/
+protected static $IcalMethods = [
+self::ICAL_METHOD_REQUEST,
+self::ICAL_METHOD_PUBLISH,
+self::ICAL_METHOD_REPLY,
+self::ICAL_METHOD_ADD,
+self::ICAL_METHOD_CANCEL,
+self::ICAL_METHOD_REFRESH,
+self::ICAL_METHOD_COUNTER,
+self::ICAL_METHOD_DECLINECOUNTER,
+];
+/**
+* The complete compiled MIME message body.
+*
+* @var string
+*/
+protected $MIMEBody = '';
+/**
+* The complete compiled MIME message headers.
+*
+* @var string
+*/
+protected $MIMEHeader = '';
+/**
+* Extra headers that createHeader() doesn't fold in.
+*
+* @var string
+*/
+protected $mailHeader = '';
+/**
+* Word-wrap the message body to this number of chars.
+* Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance.
+*
+* @see static::STD_LINE_LENGTH
+*
+* @var int
+*/
+public $WordWrap = 0;
+/**
+* Which method to use to send mail.
+* Options: "mail", "sendmail", or "smtp".
+*
+* @var string
+*/
+public $Mailer = 'mail';
+/**
+* The path to the sendmail program.
+*
+* @var string
+*/
+public $Sendmail = '/usr/sbin/sendmail';
+/**
+* Whether mail() uses a fully sendmail-compatible MTA.
+* One which supports sendmail's "-oi -f" options.
+*
+* @var bool
+*/
+public $UseSendmailOptions = true;
+/**
+* The email address that a reading confirmation should be sent to, also known as read receipt.
+*
+* @var string
+*/
+public $ConfirmReadingTo = '';
+/**
+* The hostname to use in the Message-ID header and as default HELO string.
+* If empty, PHPMailer attempts to find one with, in order,
+* $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value
+* 'localhost.localdomain'.
+*
+* @see PHPMailer::$Helo
+*
+* @var string
+*/
+public $Hostname = '';
+/**
+* An ID to be used in the Message-ID header.
+* If empty, a unique id will be generated.
+* You can set your own, but it must be in the format "<id@domain>",
+* as defined in RFC5322 section 3.6.4 or it will be ignored.
+*
+* @see https://tools.ietf.org/html/rfc5322#section-3.6.4
+*
+* @var string
+*/
+public $MessageID = '';
+/**
+* The message Date to be used in the Date header.
+* If empty, the current date will be added.
+*
+* @var string
+*/
+public $MessageDate = '';
+/**
+* SMTP hosts.
+* Either a single hostname or multiple semicolon-delimited hostnames.
+* You can also specify a different port
+* for each host by using this format: [hostname:port]
+* (e.g. "smtp1.example.com:25;smtp2.example.com").
+* You can also specify encryption type, for example:
+* (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465").
+* Hosts will be tried in order.
+*
+* @var string
+*/
+public $Host = 'localhost';
+/**
+* The default SMTP server port.
+*
+* @var int
+*/
+public $Port = 25;
+/**
+* The SMTP HELO/EHLO name used for the SMTP connection.
+* Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find
+* one with the same method described above for $Hostname.
+*
+* @see PHPMailer::$Hostname
+*
+* @var string
+*/
+public $Helo = '';
+/**
+* What kind of encryption to use on the SMTP connection.
+* Options: '', static::ENCRYPTION_STARTTLS, or static::ENCRYPTION_SMTPS.
+*
+* @var string
+*/
+public $SMTPSecure = '';
+/**
+* Whether to enable TLS encryption automatically if a server supports it,
+* even if `SMTPSecure` is not set to 'tls'.
+* Be aware that in PHP >= 5.6 this requires that the server's certificates are valid.
+*
+* @var bool
+*/
+public $SMTPAutoTLS = true;
+/**
+* Whether to use SMTP authentication.
+* Uses the Username and Password properties.
+*
+* @see PHPMailer::$Username
+* @see PHPMailer::$Password
+*
+* @var bool
+*/
+public $SMTPAuth = false;
+/**
+* Options array passed to stream_context_create when connecting via SMTP.
+*
+* @var array
+*/
+public $SMTPOptions = [];
+/**
+* SMTP username.
+*
+* @var string
+*/
+public $Username = '';
+/**
+* SMTP password.
+*
+* @var string
+*/
+public $Password = '';
+/**
+* SMTP auth type.
+* Options are CRAM-MD5, LOGIN, PLAIN, XOAUTH2, attempted in that order if not specified.
+*
+* @var string
+*/
+public $AuthType = '';
+/**
+* An instance of the PHPMailer OAuth class.
+*
+* @var OAuth
+*/
+protected $oauth;
+/**
+* The SMTP server timeout in seconds.
+* Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2.
+*
+* @var int
+*/
+public $Timeout = 300;
+/**
+* Comma separated list of DSN notifications
+* 'NEVER' under no circumstances a DSN must be returned to the sender.
+*         If you use NEVER all other notifications will be ignored.
+* 'SUCCESS' will notify you when your mail has arrived at its destination.
+* 'FAILURE' will arrive if an error occurred during delivery.
+* 'DELAY'   will notify you if there is an unusual delay in delivery, but the actual
+*           delivery's outcome (success or failure) is not yet decided.
+*
+* @see https://tools.ietf.org/html/rfc3461 See section 4.1 for more information about NOTIFY
+*/
+public $dsn = '';
+/**
+* SMTP class debug output mode.
+* Debug output level.
+* Options:
+* * SMTP::DEBUG_OFF: No output
+* * SMTP::DEBUG_CLIENT: Client messages
+* * SMTP::DEBUG_SERVER: Client and server messages
+* * SMTP::DEBUG_CONNECTION: As SERVER plus connection status
+* * SMTP::DEBUG_LOWLEVEL: Noisy, low-level data output, rarely needed
+*
+* @see SMTP::$do_debug
+*
+* @var int
+*/
+public $SMTPDebug = 0;
+/**
+* How to handle debug output.
+* Options:
+* * `echo` Output plain-text as-is, appropriate for CLI
+* * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output
+* * `error_log` Output to error log as configured in php.ini
+* 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, $params)
+{
+//Check overloading of mail function to avoid double-encoding
+if (ini_get('mbstring.func_overload') & 1) { // phpcs:ignore PHPCompatibility.IniDirectives.RemovedIniDirectives.mbstring_func_overloadDeprecated
+$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]+/', '', $str),
+ENT_QUOTES,
+'UTF-8'
+), "<br>\n";
+break;
+case 'echo':
+default:
+//Normalize line breaks
+$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 <address>" 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')) {
+// phpcs:ignore PHPCompatibility.ParameterValues.NewIDNVariantDefault.NotSet
+$punycode = idn_to_ascii($domain, $errorcode, INTL_IDNA_VARIANT_UTS46);
+} elseif (defined('INTL_IDNA_VARIANT_2003')) {
+// phpcs:ignore PHPCompatibility.Constants.RemovedConstants.intl_idna_variant_2003Deprecated
+$punycode = idn_to_ascii($domain, $errorcode, INTL_IDNA_VARIANT_2003);
+} else {
+// phpcs:ignore PHPCompatibility.ParameterValues.NewIDNVariantDefault.NotSet
+$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 ("` =?<charset>?[QB]?<content>?=`").
+$overhead = 8 + strlen($charset);
+if ('mail' === $this->Mailer) {
+$maxlen = static::MAIL_MAX_LINE_LENGTH - $overhead;
+} else {
+$maxlen = static::MAX_LINE_LENGTH - $overhead;
+}
+// Select the encoding that produces the shortest output and/or prevents corruption.
+if ($matchcount > strlen($str) / 3) {
+// More than 1/3 of the content needs encoding, use B-encode.
+$encoding = 'B';
+} elseif ($matchcount > 0) {
+// Less than 1/3 of the content needs encoding, use Q-encode.
+$encoding = 'Q';
+} elseif (strlen($str) > $maxlen) {
+// No encoding needed, but value exceeds max line length, use Q-encode to prevent corruption.
+$encoding = 'Q';
+} else {
+// No reformatting needed
+$encoding = false;
+}
+switch ($encoding) {
+case 'B':
+if ($this->hasMultiBytes($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, $maxlen, "\n"));
+}
+$encoded = preg_replace('/^(.*)$/m', ' =?' . $charset . "?$encoding?\\1?=", $encoded);
+break;
+case 'Q':
+$encoded = $this->encodeQ($str, $position);
+$encoded = $this->wrapText($encoded, $maxlen, true);
+$encoded = str_replace('=' . static::$LE, "\n", trim($encoded));
+$encoded = preg_replace('/^(.*)$/m', ' =?' . $charset . "?$encoding?\\1?=", $encoded);
+break;
+default:
+return $str;
+}
+return trim(static::normalizeBreaks($encoded));
+}
+/**
+* Check if a string contains multi-byte characters.
+*
+* @param string $str multi-byte text to wrap encode
+*
+* @return bool
+*/
+public function hasMultiBytes($str)
+{
+if (function_exists('mb_strlen')) {
+return strlen($str) > mb_strlen($str, $this->CharSet);
+}
+// 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 $text
+*
+* @return bool
+*/
+public function has8bitChars($text)
+{
+return (bool) 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.
+*
+* @see http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
+*
+* @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 (null === $linebreak) {
+$linebreak = static::$LE;
+}
+$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 * $ratio * .75);
+$offset = 0;
+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 . $linebreak;
+}
+// Chomp the last linefeed
+return substr($encoded, 0, -strlen($linebreak));
+}
+/**
+* Encode a string in quoted-printable format.
+* According to RFC2045 section 6.7.
+*
+* @param string $string The text to encode
+*
+* @return string
+*/
+public function encodeQP($string)
+{
+return static::normalizeBreaks(quoted_printable_encode($string));
+}
+/**
+* Encode a string using Q encoding.
+*
+* @see http://tools.ietf.org/html/rfc2047#section-4.2
+*
+* @param string $str      the text to encode
+* @param string $position Where the text is going to be used, see the RFC for what that means
+*
+* @return string
+*/
+public function encodeQ($str, $position = 'text')
+{
+// There should not be any EOL in the string
+$pattern = '';
+$encoded = str_replace(["\r", "\n"], '', $str);
+switch (strtolower($position)) {
+case 'phrase':
+// RFC 2047 section 5.3
+$pattern = '^A-Za-z0-9!*+\/ -';
+break;
+/*
+* RFC 2047 section 5.2.
+* Build $pattern without including delimiters and []
+*/
+/* @noinspection PhpMissingBreakStatementInspection */
+case 'comment':
+$pattern = '\(\)"';
+/* Intentional fall through */
+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 = [];
+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], true);
+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 spaces with _ (more readable than =20)
+// RFC 2047 section 4.2(2)
+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 $disposition Disposition to use
+*
+* @throws Exception
+*
+* @return bool True on successfully adding an attachment
+*/
+public function addStringAttachment(
+$string,
+$filename,
+$encoding = self::ENCODING_BASE64,
+$type = '',
+$disposition = 'attachment'
+) {
+try {
+// If a MIME type is not specified, try to work it out from the file name
+if ('' === $type) {
+$type = static::filenameToType($filename);
+}
+if (!$this->validateEncoding($encoding)) {
+throw new Exception($this->lang('encoding') . $encoding);
+}
+// Append to $attachment array
+$this->attachment[] = [
+0 => $string,
+1 => $filename,
+2 => static::mb_pathinfo($filename, PATHINFO_BASENAME),
+3 => $encoding,
+4 => $type,
+5 => true, // isStringAttachment
+6 => $disposition,
+7 => 0,
+];
+} catch (Exception $exc) {
+$this->setError($exc->getMessage());
+$this->edebug($exc->getMessage());
+if ($this->exceptions) {
+throw $exc;
+}
+return false;
+}
+return true;
+}
+/**
+* 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 $disposition Disposition to use
+*
+* @throws Exception
+*
+* @return bool True on successfully adding an attachment
+*/
+public function addEmbeddedImage(
+$path,
+$cid,
+$name = '',
+$encoding = self::ENCODING_BASE64,
+$type = '',
+$disposition = 'inline'
+) {
+try {
+if (!static::isPermittedPath($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($path);
+}
+if (!$this->validateEncoding($encoding)) {
+throw new Exception($this->lang('encoding') . $encoding);
+}
+$filename = (string) static::mb_pathinfo($path, PATHINFO_BASENAME);
+if ('' === $name) {
+$name = $filename;
+}
+// Append to $attachment array
+$this->attachment[] = [
+0 => $path,
+1 => $filename,
+2 => $name,
+3 => $encoding,
+4 => $type,
+5 => false, // isStringAttachment
+6 => $disposition,
+7 => $cid,
+];
+} catch (Exception $exc) {
+$this->setError($exc->getMessage());
+$this->edebug($exc->getMessage());
+if ($this->exceptions) {
+throw $exc;
+}
+return false;
+}
+return true;
+}
+/**
+* Add an embedded stringified attachment.
+* This can include images, sounds, and just about any other document type.
+* If your filename doesn't contain an extension, be sure to set the $type to an appropriate MIME type.
+*
+* @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        A filename for the attachment. If this contains an extension,
+*                            PHPMailer will attempt to set a MIME type for the attachment.
+*                            For example 'file.jpg' would get an 'image/jpeg' MIME type.
+* @param string $encoding    File encoding (see $Encoding), defaults to 'base64'
+* @param string $type        MIME type - will be used in preference to any automatically derived type
+* @param string $disposition Disposition to use
+*
+* @throws Exception
+*
+* @return bool True on successfully adding an attachment
+*/
+public function addStringEmbeddedImage(
+$string,
+$cid,
+$name = '',
+$encoding = self::ENCODING_BASE64,
+$type = '',
+$disposition = 'inline'
+) {
+try {
+// If a MIME type is not specified, try to work it out from the name
+if ('' === $type && !empty($name)) {
+$type = static::filenameToType($name);
+}
+if (!$this->validateEncoding($encoding)) {
+throw new Exception($this->lang('encoding') . $encoding);
+}
+// Append to $attachment array
+$this->attachment[] = [
+0 => $string,
+1 => $name,
+2 => $name,
+3 => $encoding,
+4 => $type,
+5 => true, // isStringAttachment
+6 => $disposition,
+7 => $cid,
+];
+} catch (Exception $exc) {
+$this->setError($exc->getMessage());
+$this->edebug($exc->getMessage());
+if ($this->exceptions) {
+throw $exc;
+}
+return false;
+}
+return true;
+}
+/**
+* Validate encodings.
+*
+* @param string $encoding
+*
+* @return bool
+*/
+protected function validateEncoding($encoding)
+{
+return in_array(
+$encoding,
+[
+self::ENCODING_7BIT,
+self::ENCODING_QUOTED_PRINTABLE,
+self::ENCODING_BASE64,
+self::ENCODING_8BIT,
+self::ENCODING_BINARY,
+],
+true
+);
+}
+/**
+* Check if an embedded attachment is present with this cid.
+*
+* @param string $cid
+*
+* @return bool
+*/
+protected function cidExists($cid)
+{
+foreach ($this->attachment as $attachment) {
+if ('inline' === $attachment[6] && $cid === $attachment[7]) {
+return true;
+}
+}
+return false;
+}
+/**
+* Check if an inline attachment is present.
+*
+* @return bool
+*/
+public function inlineImageExists()
+{
+foreach ($this->attachment as $attachment) {
+if ('inline' === $attachment[6]) {
+return true;
+}
+}
+return false;
+}
+/**
+* Check if an attachment (non-inline) is present.
+*
+* @return bool
+*/
+public function attachmentExists()
+{
+foreach ($this->attachment as $attachment) {
+if ('attachment' === $attachment[6]) {
+return true;
+}
+}
+return false;
+}
+/**
+* Check if this message has an alternative body set.
+*
+* @return bool
+*/
+public function alternativeExists()
+{
+return !empty($this->AltBody);
+}
+/**
+* Clear queued addresses of given kind.
+*
+* @param string $kind 'to', 'cc', or 'bcc'
+*/
+public function clearQueuedAddresses($kind)
+{
+$this->RecipientsQueue = array_filter(
+$this->RecipientsQueue,
+static function ($params) use ($kind) {
+return $params[0] !== $kind;
+}
+);
+}
+/**
+* Clear all To recipients.
+*/
+public function clearAddresses()
+{
+foreach ($this->to as $to) {
+unset($this->all_recipients[strtolower($to[0])]);
+}
+$this->to = [];
+$this->clearQueuedAddresses('to');
+}
+/**
+* Clear all CC recipients.
+*/
+public function clearCCs()
+{
+foreach ($this->cc as $cc) {
+unset($this->all_recipients[strtolower($cc[0])]);
+}
+$this->cc = [];
+$this->clearQueuedAddresses('cc');
+}
+/**
+* Clear all BCC recipients.
+*/
+public function clearBCCs()
+{
+foreach ($this->bcc as $bcc) {
+unset($this->all_recipients[strtolower($bcc[0])]);
+}
+$this->bcc = [];
+$this->clearQueuedAddresses('bcc');
+}
+/**
+* Clear all ReplyTo recipients.
+*/
+public function clearReplyTos()
+{
+$this->ReplyTo = [];
+$this->ReplyToQueue = [];
+}
+/**
+* Clear all recipient types.
+*/
+public function clearAllRecipients()
+{
+$this->to = [];
+$this->cc = [];
+$this->bcc = [];
+$this->all_recipients = [];
+$this->RecipientsQueue = [];
+}
+/**
+* Clear all filesystem, string, and binary attachments.
+*/
+public function clearAttachments()
+{
+$this->attachment = [];
+}
+/**
+* Clear all custom headers.
+*/
+public function clearCustomHeaders()
+{
+$this->CustomHeader = [];
+}
+/**
+* Add an error message to the error container.
+*
+* @param string $msg
+*/
+protected function setError($msg)
+{
+++$this->error_count;
+if ('smtp' === $this->Mailer && 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 = $msg;
+}
+/**
+* Return an RFC 822 formatted date.
+*
+* @return string
+*/
+public static function rfcDate()
+{
+// Set the time zone to whatever the default is to avoid 500 errors
+// Will default to UTC if it's not set properly in php.ini
+date_default_timezone_set(@date_default_timezone_get());
+return date('D, j M Y H:i:s O');
+}
+/**
+* Get the server hostname.
+* Returns 'localhost.localdomain' if unknown.
+*
+* @return string
+*/
+protected function serverHostname()
+{
+$result = '';
+if (!empty($this->Hostname)) {
+$result = $this->Hostname;
+} elseif (isset($_SERVER) && array_key_exists('SERVER_NAME', $_SERVER)) {
+$result = $_SERVER['SERVER_NAME'];
+} elseif (function_exists('gethostname') && gethostname() !== false) {
+$result = gethostname();
+} elseif (php_uname('n') !== false) {
+$result = php_uname('n');
+}
+if (!static::isValidHost($result)) {
+return 'localhost.localdomain';
+}
+return $result;
+}
+/**
+* Validate whether a string contains a valid value to use as a hostname or IP address.
+* IPv6 addresses must include [], e.g. `[::1]`, not just `::1`.
+*
+* @param string $host The host name or IP address to check
+*
+* @return bool
+*/
+public static function isValidHost($host)
+{
+//Simple syntax limits
+if (empty($host)
+|| !is_string($host)
+|| strlen($host) > 256
+|| !preg_match('/^([a-zA-Z\d.-]*|\[[a-fA-F\d:]+])$/', $host)
+) {
+return false;
+}
+//Looks like a bracketed IPv6 address
+if (strlen($host) > 2 && substr($host, 0, 1) === '[' && substr($host, -1, 1) === ']') {
+return filter_var(substr($host, 1, -1), FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== false;
+}
+//If removing all the dots results in a numeric string, it must be an IPv4 address.
+//Need to check this first because otherwise things like `999.0.0.0` are considered valid host names
+if (is_numeric(str_replace('.', '', $host))) {
+//Is it a valid IPv4 address?
+return filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false;
+}
+if (filter_var('http://' . $host, FILTER_VALIDATE_URL) !== false) {
+//Is it a syntactically valid hostname?
+return true;
+}
+return false;
+}
+/**
+* Get an error message in the current language.
+*
+* @param string $key
+*
+* @return string
+*/
+protected function lang($key)
+{
+if (count($this->language) < 1) {
+$this->setLanguage(); // set the default language
+}
+if (array_key_exists($key, $this->language)) {
+if ('smtp_connect_failed' === $key) {
+//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];
+}
+//Return the key as a fallback
+return $key;
+}
+/**
+* Check if an error occurred.
+*
+* @return bool True if an error did occur
+*/
+public function isError()
+{
+return $this->error_count > 0;
+}
+/**
+* Add a custom header.
+* $name value can be overloaded to contain
+* both header name and value (name:value).
+*
+* @param string      $name  Custom header name
+* @param string|null $value Header value
+*
+* @throws Exception
+*/
+public function addCustomHeader($name, $value = null)
+{
+if (null === $value && strpos($name, ':') !== false) {
+// Value passed in as name:value
+list($name, $value) = explode(':', $name, 2);
+}
+$name = trim($name);
+$value = trim($value);
+//Ensure name is not empty, and that neither name nor value contain line breaks
+if (empty($name) || strpbrk($name . $value, "\r\n") !== false) {
+if ($this->exceptions) {
+throw new Exception('Invalid header name or value');
+}
+return false;
+}
+$this->CustomHeader[] = [$name, $value];
+return true;
+}
+/**
+* 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. <img src="/images/a.png"> 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('/(?<!-)(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 => $url) {
+// Convert data URIs into embedded images
+//e.g. "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
+$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;
+}
+}

changeset 16	a86126ab1dd4
child 18	be944660c56a