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05c3709db3
This is a maintenance release with minor changes: * Don't try to issue `RSET` if there has been a connection error. * Reject attempts to add folders as attachments. * Don't suppress earlier error messages on `close()`. * Handle `Host === null` better. Release notes: https://github.com/PHPMailer/PHPMailer/releases/tag/v6.6.5 For a full list of changes in this update, see the PHPMailer GitHub: https://github.com/PHPMailer/PHPMailer/compare/v6.6.4...v6.6.5 Follow-up to [50628], [50799], [51169], [51634], [51635], [52252], [52749], [52811], [53500], [53535], [53917]. Props ayeshrajans, Synchro. Fixes #56772. Built from https://develop.svn.wordpress.org/trunk@54427 git-svn-id: http://core.svn.wordpress.org/trunk@53986 1a063a9b-81f0-0310-95a4-ce76da25c4cd
5091 lines
175 KiB
PHP
5091 lines
175 KiB
PHP
<?php
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/**
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* PHPMailer - PHP email creation and transport class.
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* PHP Version 5.5.
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*
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* @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
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*
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* @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
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* @author Jim Jagielski (jimjag) <jimjag@gmail.com>
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* @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
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* @author Brent R. Matzelle (original founder)
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* @copyright 2012 - 2020 Marcus Bointon
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* @copyright 2010 - 2012 Jim Jagielski
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* @copyright 2004 - 2009 Andy Prevost
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
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* @note This program is distributed in the hope that it will be useful - WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*/
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namespace PHPMailer\PHPMailer;
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/**
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* PHPMailer - PHP email creation and transport class.
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*
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* @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
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* @author Jim Jagielski (jimjag) <jimjag@gmail.com>
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* @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
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* @author Brent R. Matzelle (original founder)
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*/
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class PHPMailer
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{
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const CHARSET_ASCII = 'us-ascii';
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const CHARSET_ISO88591 = 'iso-8859-1';
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const CHARSET_UTF8 = 'utf-8';
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const CONTENT_TYPE_PLAINTEXT = 'text/plain';
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const CONTENT_TYPE_TEXT_CALENDAR = 'text/calendar';
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const CONTENT_TYPE_TEXT_HTML = 'text/html';
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const CONTENT_TYPE_MULTIPART_ALTERNATIVE = 'multipart/alternative';
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const CONTENT_TYPE_MULTIPART_MIXED = 'multipart/mixed';
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const CONTENT_TYPE_MULTIPART_RELATED = 'multipart/related';
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const ENCODING_7BIT = '7bit';
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const ENCODING_8BIT = '8bit';
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const ENCODING_BASE64 = 'base64';
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const ENCODING_BINARY = 'binary';
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const ENCODING_QUOTED_PRINTABLE = 'quoted-printable';
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const ENCRYPTION_STARTTLS = 'tls';
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const ENCRYPTION_SMTPS = 'ssl';
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const ICAL_METHOD_REQUEST = 'REQUEST';
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const ICAL_METHOD_PUBLISH = 'PUBLISH';
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const ICAL_METHOD_REPLY = 'REPLY';
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const ICAL_METHOD_ADD = 'ADD';
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const ICAL_METHOD_CANCEL = 'CANCEL';
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const ICAL_METHOD_REFRESH = 'REFRESH';
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const ICAL_METHOD_COUNTER = 'COUNTER';
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const ICAL_METHOD_DECLINECOUNTER = 'DECLINECOUNTER';
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/**
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* Email priority.
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* Options: null (default), 1 = High, 3 = Normal, 5 = low.
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* When null, the header is not set at all.
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*
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* @var int|null
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*/
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public $Priority;
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/**
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* The character set of the message.
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*
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* @var string
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*/
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public $CharSet = self::CHARSET_ISO88591;
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/**
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* The MIME Content-type of the message.
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*
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* @var string
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*/
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public $ContentType = self::CONTENT_TYPE_PLAINTEXT;
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/**
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* The message encoding.
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* Options: "8bit", "7bit", "binary", "base64", and "quoted-printable".
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*
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* @var string
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*/
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public $Encoding = self::ENCODING_8BIT;
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/**
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* Holds the most recent mailer error message.
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*
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* @var string
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*/
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public $ErrorInfo = '';
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/**
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* The From email address for the message.
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*
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* @var string
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*/
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public $From = '';
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/**
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* The From name of the message.
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*
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* @var string
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*/
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public $FromName = '';
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/**
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* The envelope sender of the message.
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* This will usually be turned into a Return-Path header by the receiver,
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* and is the address that bounces will be sent to.
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* If not empty, will be passed via `-f` to sendmail or as the 'MAIL FROM' value over SMTP.
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*
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* @var string
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*/
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public $Sender = '';
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/**
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* The Subject of the message.
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*
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* @var string
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*/
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public $Subject = '';
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/**
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* An HTML or plain text message body.
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* If HTML then call isHTML(true).
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*
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* @var string
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*/
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public $Body = '';
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/**
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* The plain-text message body.
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* This body can be read by mail clients that do not have HTML email
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* capability such as mutt & Eudora.
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* Clients that can read HTML will view the normal Body.
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*
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* @var string
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*/
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public $AltBody = '';
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/**
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* An iCal message part body.
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* Only supported in simple alt or alt_inline message types
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* To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator.
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*
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* @see http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
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* @see http://kigkonsult.se/iCalcreator/
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*
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* @var string
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*/
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public $Ical = '';
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/**
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* Value-array of "method" in Contenttype header "text/calendar"
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*
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* @var string[]
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*/
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protected static $IcalMethods = [
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self::ICAL_METHOD_REQUEST,
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self::ICAL_METHOD_PUBLISH,
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self::ICAL_METHOD_REPLY,
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self::ICAL_METHOD_ADD,
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self::ICAL_METHOD_CANCEL,
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self::ICAL_METHOD_REFRESH,
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self::ICAL_METHOD_COUNTER,
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self::ICAL_METHOD_DECLINECOUNTER,
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];
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/**
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* The complete compiled MIME message body.
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*
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* @var string
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*/
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protected $MIMEBody = '';
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/**
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* The complete compiled MIME message headers.
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*
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* @var string
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*/
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protected $MIMEHeader = '';
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/**
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* Extra headers that createHeader() doesn't fold in.
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*
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* @var string
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*/
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protected $mailHeader = '';
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/**
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* Word-wrap the message body to this number of chars.
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* Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance.
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*
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* @see static::STD_LINE_LENGTH
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*
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* @var int
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*/
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public $WordWrap = 0;
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/**
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* Which method to use to send mail.
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* Options: "mail", "sendmail", or "smtp".
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*
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* @var string
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*/
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public $Mailer = 'mail';
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/**
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* The path to the sendmail program.
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*
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* @var string
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*/
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public $Sendmail = '/usr/sbin/sendmail';
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/**
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* Whether mail() uses a fully sendmail-compatible MTA.
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* One which supports sendmail's "-oi -f" options.
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*
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* @var bool
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*/
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public $UseSendmailOptions = true;
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/**
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* The email address that a reading confirmation should be sent to, also known as read receipt.
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*
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* @var string
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*/
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public $ConfirmReadingTo = '';
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/**
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* The hostname to use in the Message-ID header and as default HELO string.
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* If empty, PHPMailer attempts to find one with, in order,
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* $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value
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* 'localhost.localdomain'.
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*
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* @see PHPMailer::$Helo
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*
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* @var string
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*/
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public $Hostname = '';
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/**
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* An ID to be used in the Message-ID header.
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* If empty, a unique id will be generated.
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* You can set your own, but it must be in the format "<id@domain>",
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* as defined in RFC5322 section 3.6.4 or it will be ignored.
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*
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* @see https://tools.ietf.org/html/rfc5322#section-3.6.4
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*
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* @var string
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*/
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public $MessageID = '';
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/**
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* The message Date to be used in the Date header.
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* If empty, the current date will be added.
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*
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* @var string
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*/
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public $MessageDate = '';
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/**
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* SMTP hosts.
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* Either a single hostname or multiple semicolon-delimited hostnames.
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* You can also specify a different port
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* for each host by using this format: [hostname:port]
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* (e.g. "smtp1.example.com:25;smtp2.example.com").
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* You can also specify encryption type, for example:
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* (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465").
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* Hosts will be tried in order.
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*
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* @var string
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*/
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public $Host = 'localhost';
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/**
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* The default SMTP server port.
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*
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* @var int
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*/
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public $Port = 25;
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/**
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* The SMTP HELO/EHLO name used for the SMTP connection.
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* Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find
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* one with the same method described above for $Hostname.
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*
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* @see PHPMailer::$Hostname
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*
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* @var string
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*/
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public $Helo = '';
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/**
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* What kind of encryption to use on the SMTP connection.
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* Options: '', static::ENCRYPTION_STARTTLS, or static::ENCRYPTION_SMTPS.
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*
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* @var string
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*/
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public $SMTPSecure = '';
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/**
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* Whether to enable TLS encryption automatically if a server supports it,
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* even if `SMTPSecure` is not set to 'tls'.
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* Be aware that in PHP >= 5.6 this requires that the server's certificates are valid.
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*
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* @var bool
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*/
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public $SMTPAutoTLS = true;
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/**
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* Whether to use SMTP authentication.
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* Uses the Username and Password properties.
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*
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* @see PHPMailer::$Username
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* @see PHPMailer::$Password
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*
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* @var bool
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*/
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public $SMTPAuth = false;
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/**
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* Options array passed to stream_context_create when connecting via SMTP.
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*
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* @var array
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*/
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public $SMTPOptions = [];
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/**
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* SMTP username.
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*
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* @var string
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*/
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public $Username = '';
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/**
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* SMTP password.
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*
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* @var string
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*/
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public $Password = '';
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/**
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* SMTP authentication type. Options are CRAM-MD5, LOGIN, PLAIN, XOAUTH2.
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* If not specified, the first one from that list that the server supports will be selected.
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*
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* @var string
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*/
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public $AuthType = '';
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/**
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* An implementation of the PHPMailer OAuthTokenProvider interface.
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*
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* @var OAuthTokenProvider
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*/
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protected $oauth;
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/**
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* The SMTP server timeout in seconds.
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* Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2.
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*
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* @var int
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*/
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public $Timeout = 300;
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/**
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* Comma separated list of DSN notifications
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* 'NEVER' under no circumstances a DSN must be returned to the sender.
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* If you use NEVER all other notifications will be ignored.
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* 'SUCCESS' will notify you when your mail has arrived at its destination.
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* 'FAILURE' will arrive if an error occurred during delivery.
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* 'DELAY' will notify you if there is an unusual delay in delivery, but the actual
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* delivery's outcome (success or failure) is not yet decided.
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*
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* @see https://tools.ietf.org/html/rfc3461 See section 4.1 for more information about NOTIFY
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*/
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public $dsn = '';
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/**
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* SMTP class debug output mode.
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* Debug output level.
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* Options:
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* @see SMTP::DEBUG_OFF: No output
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* @see SMTP::DEBUG_CLIENT: Client messages
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* @see SMTP::DEBUG_SERVER: Client and server messages
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* @see SMTP::DEBUG_CONNECTION: As SERVER plus connection status
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* @see SMTP::DEBUG_LOWLEVEL: Noisy, low-level data output, rarely needed
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*
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* @see SMTP::$do_debug
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*
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* @var int
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*/
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public $SMTPDebug = 0;
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/**
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* How to handle debug output.
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||
* Options:
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||
* * `echo` Output plain-text as-is, appropriate for CLI
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* * `html` Output escaped, line breaks converted to `<br>`, appropriate for browser output
|
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* * `error_log` Output to error log as configured in php.ini
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* By default PHPMailer will use `echo` if run from a `cli` or `cli-server` SAPI, `html` otherwise.
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* Alternatively, you can provide a callable expecting two params: a message string and the debug level:
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*
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||
* ```php
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* $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
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||
* ```
|
||
*
|
||
* Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug`
|
||
* level output is used:
|
||
*
|
||
* ```php
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||
* $mail->Debugoutput = new myPsr3Logger;
|
||
* ```
|
||
*
|
||
* @see SMTP::$Debugoutput
|
||
*
|
||
* @var string|callable|\Psr\Log\LoggerInterface
|
||
*/
|
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public $Debugoutput = 'echo';
|
||
|
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/**
|
||
* Whether to keep the SMTP connection open after each message.
|
||
* If this is set to true then the connection will remain open after a send,
|
||
* and closing the connection will require an explicit call to smtpClose().
|
||
* It's a good idea to use this if you are sending multiple messages as it reduces overhead.
|
||
* See the mailing list example for how to use it.
|
||
*
|
||
* @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
|
||
*
|
||
* @deprecated 6.0.0 PHPMailer isn't a mailing list manager!
|
||
*/
|
||
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 text strings for the current language.
|
||
*
|
||
* @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 $uniqueid = '';
|
||
|
||
/**
|
||
* The PHPMailer Version number.
|
||
*
|
||
* @var string
|
||
*/
|
||
const VERSION = '6.6.5';
|
||
|
||
/**
|
||
* Error severity: message only, continue processing.
|
||
*
|
||
* @var int
|
||
*/
|
||
const STOP_MESSAGE = 0;
|
||
|
||
/**
|
||
* Error severity: message, likely ok to continue processing.
|
||
*
|
||
* @var int
|
||
*/
|
||
const STOP_CONTINUE = 1;
|
||
|
||
/**
|
||
* Error severity: message, plus full stop, critical error reached.
|
||
*
|
||
* @var int
|
||
*/
|
||
const STOP_CRITICAL = 2;
|
||
|
||
/**
|
||
* The SMTP standard CRLF line break.
|
||
* If you want to change line break format, change static::$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
|
||
$this->edebug('Sending with mail()');
|
||
$this->edebug('Sendmail path: ' . ini_get('sendmail_path'));
|
||
$this->edebug("Envelope sender: {$this->Sender}");
|
||
$this->edebug("To: {$to}");
|
||
$this->edebug("Subject: {$subject}");
|
||
$this->edebug("Headers: {$header}");
|
||
if (!$this->UseSendmailOptions || null === $params) {
|
||
$result = @mail($to, $subject, $body, $header);
|
||
} else {
|
||
$this->edebug("Additional params: {$params}");
|
||
$result = @mail($to, $subject, $body, $header, $params);
|
||
}
|
||
$this->edebug('Result: ' . ($result ? 'true' : 'false'));
|
||
return $result;
|
||
}
|
||
|
||
/**
|
||
* Output debugging info via a user-defined method.
|
||
* Only generates output if debug output is enabled.
|
||
*
|
||
* @see PHPMailer::$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
|
||
/** @noinspection ForgottenDebugOutputInspection */
|
||
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
|
||
* @param string $name An optional username associated with the address
|
||
*
|
||
* @throws Exception
|
||
*
|
||
* @return bool true on success, false if address already used or invalid in some way
|
||
*/
|
||
protected function addOrEnqueueAnAddress($kind, $address, $name)
|
||
{
|
||
$pos = false;
|
||
if ($address !== null) {
|
||
$address = trim($address);
|
||
$pos = strrpos($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;
|
||
}
|
||
if ($name !== null && is_string($name)) {
|
||
$name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
|
||
} else {
|
||
$name = '';
|
||
}
|
||
$params = [$kind, $address, $name];
|
||
//Enqueue addresses with IDN until we know the PHPMailer::$CharSet.
|
||
//Domain is assumed to be whatever is after the last @ symbol in the address
|
||
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
|
||
* @param string $charset The charset to use when decoding the address list string.
|
||
*
|
||
* @return array
|
||
*/
|
||
public static function parseAddresses($addrstr, $useimap = true, $charset = self::CHARSET_ISO88591)
|
||
{
|
||
$addresses = [];
|
||
if ($useimap && function_exists('imap_rfc822_parse_adrlist')) {
|
||
//Use this built-in parser if it's available
|
||
$list = imap_rfc822_parse_adrlist($addrstr, '');
|
||
// Clear any potential IMAP errors to get rid of notices being thrown at end of script.
|
||
imap_errors();
|
||
foreach ($list as $address) {
|
||
if (
|
||
'.SYNTAX-ERROR.' !== $address->host &&
|
||
static::validateAddress($address->mailbox . '@' . $address->host)
|
||
) {
|
||
//Decode the name part if it's present and encoded
|
||
if (
|
||
property_exists($address, 'personal') &&
|
||
//Check for a Mbstring constant rather than using extension_loaded, which is sometimes disabled
|
||
defined('MB_CASE_UPPER') &&
|
||
preg_match('/^=\?.*\?=$/s', $address->personal)
|
||
) {
|
||
$origCharset = mb_internal_encoding();
|
||
mb_internal_encoding($charset);
|
||
//Undo any RFC2047-encoded spaces-as-underscores
|
||
$address->personal = str_replace('_', '=20', $address->personal);
|
||
//Decode the name
|
||
$address->personal = mb_decode_mimeheader($address->personal);
|
||
mb_internal_encoding($origCharset);
|
||
}
|
||
|
||
$addresses[] = [
|
||
'name' => (property_exists($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));
|
||
$name = trim($name);
|
||
if (static::validateAddress($email)) {
|
||
//Check for a Mbstring constant rather than using extension_loaded, which is sometimes disabled
|
||
//If this name is encoded, decode it
|
||
if (defined('MB_CASE_UPPER') && preg_match('/^=\?.*\?=$/s', $name)) {
|
||
$origCharset = mb_internal_encoding();
|
||
mb_internal_encoding($charset);
|
||
//Undo any RFC2047-encoded spaces-as-underscores
|
||
$name = str_replace('_', '=20', $name);
|
||
//Decode the name
|
||
$name = mb_decode_mimeheader($name);
|
||
mb_internal_encoding($origCharset);
|
||
}
|
||
$addresses[] = [
|
||
//Remove any surrounding quotes and spaces from the name
|
||
'name' => trim($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)
|
||
{
|
||
$address = trim((string)$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;
|
||
}
|
||
//Don't allow strings as callables, see SECURITY.md and CVE-2021-3603
|
||
if (is_callable($patternselect) && !is_string($patternselect)) {
|
||
return call_user_func($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',
|
||
$address
|
||
);
|
||
case 'html5':
|
||
/*
|
||
* This is the pattern used in the HTML5 spec for validation of 'email' type form input elements.
|
||
*
|
||
* @see https://html.spec.whatwg.org/#e-mail-state-(type=email)
|
||
*/
|
||
return (bool) preg_match(
|
||
'/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[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)) {
|
||
//Convert the domain from whatever charset it's in to UTF-8
|
||
$domain = mb_convert_encoding($domain, self::CHARSET_UTF8, $this->CharSet);
|
||
//Ignore IDE complaints about this line - method signature changed in PHP 5.4
|
||
$errorcode = 0;
|
||
if (defined('INTL_IDNA_VARIANT_UTS46')) {
|
||
//Use the current punycode standard (appeared in PHP 7.2)
|
||
$punycode = idn_to_ascii(
|
||
$domain,
|
||
\IDNA_DEFAULT | \IDNA_USE_STD3_RULES | \IDNA_CHECK_BIDI |
|
||
\IDNA_CHECK_CONTEXTJ | \IDNA_NONTRANSITIONAL_TO_ASCII,
|
||
\INTL_IDNA_VARIANT_UTS46
|
||
);
|
||
} elseif (defined('INTL_IDNA_VARIANT_2003')) {
|
||
//Fall back to this old, deprecated/removed encoding
|
||
// phpcs:ignore PHPCompatibility.Constants.RemovedConstants.intl_idna_variant_2003Deprecated
|
||
$punycode = idn_to_ascii($domain, $errorcode, \INTL_IDNA_VARIANT_2003);
|
||
} else {
|
||
//Fall back to a default we don't know about
|
||
// 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 && (\PHP_VERSION_ID >= 80000 || 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' === $this->Mailer
|
||
&& ((\PHP_VERSION_ID >= 70000 && \PHP_VERSION_ID < 70017)
|
||
|| (\PHP_VERSION_ID >= 70100 && \PHP_VERSION_ID < 70103))
|
||
&& ini_get('mail.add_x_header') === '1'
|
||
&& stripos(PHP_OS, 'WIN') === 0
|
||
) {
|
||
trigger_error($this->lang('buggy_php'), 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 $exc) {
|
||
if ($this->Mailer === 'smtp' && $this->SMTPKeepAlive == true && $this->smtp->connected()) {
|
||
$this->smtp->reset();
|
||
}
|
||
$this->setError($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, $body)
|
||
{
|
||
if ($this->Mailer === 'qmail') {
|
||
$this->edebug('Sending with qmail');
|
||
} else {
|
||
$this->edebug('Sending with sendmail');
|
||
}
|
||
$header = static::stripTrailingWSP($header) . static::$LE . static::$LE;
|
||
//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
|
||
|
||
//PHP 5.6 workaround
|
||
$sendmail_from_value = ini_get('sendmail_from');
|
||
if (empty($this->Sender) && !empty($sendmail_from_value)) {
|
||
//PHP config has a sender address we can use
|
||
$this->Sender = ini_get('sendmail_from');
|
||
}
|
||
//CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
|
||
if (!empty($this->Sender) && static::validateAddress($this->Sender) && self::isShellSafe($this->Sender)) {
|
||
if ($this->Mailer === 'qmail') {
|
||
$sendmailFmt = '%s -f%s';
|
||
} else {
|
||
$sendmailFmt = '%s -oi -f%s -t';
|
||
}
|
||
} else {
|
||
//allow sendmail to choose a default envelope sender. It may
|
||
//seem preferable to force it to use the From header as with
|
||
//SMTP, but that introduces new problems (see
|
||
//<https://github.com/PHPMailer/PHPMailer/issues/2298>), and
|
||
//it has historically worked this way.
|
||
$sendmailFmt = '%s -oi -t';
|
||
}
|
||
|
||
$sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender);
|
||
$this->edebug('Sendmail path: ' . $this->Sendmail);
|
||
$this->edebug('Sendmail command: ' . $sendmail);
|
||
$this->edebug('Envelope sender: ' . $this->Sender);
|
||
$this->edebug("Headers: {$header}");
|
||
|
||
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);
|
||
}
|
||
$this->edebug("To: {$toAddr}");
|
||
fwrite($mail, 'To: ' . $toAddr . "\n");
|
||
fwrite($mail, $header);
|
||
fwrite($mail, $body);
|
||
$result = pclose($mail);
|
||
$addrinfo = static::parseAddresses($toAddr, true, $this->CharSet);
|
||
$this->doCallback(
|
||
($result === 0),
|
||
[[$addrinfo['address'], $addrinfo['name']]],
|
||
$this->cc,
|
||
$this->bcc,
|
||
$this->Subject,
|
||
$body,
|
||
$this->From,
|
||
[]
|
||
);
|
||
$this->edebug("Result: " . ($result === 0 ? 'true' : 'false'));
|
||
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,
|
||
[]
|
||
);
|
||
$this->edebug("Result: " . ($result === 0 ? 'true' : 'false'));
|
||
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)
|
||
{
|
||
//It's not possible to use shell commands safely (which includes the mail() function) without escapeshellarg,
|
||
//but some hosting providers disable it, creating a security problem that we don't want to have to deal with,
|
||
//so we don't.
|
||
if (!function_exists('escapeshellarg') || !function_exists('escapeshellcmd')) {
|
||
return false;
|
||
}
|
||
|
||
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)
|
||
{
|
||
//Matches scheme definition from https://tools.ietf.org/html/rfc3986#section-3.1
|
||
return !preg_match('#^[a-z][a-z\d+.-]*://#i', $path);
|
||
}
|
||
|
||
/**
|
||
* Check whether a file path is safe, accessible, and readable.
|
||
*
|
||
* @param string $path A relative or absolute path to a file
|
||
*
|
||
* @return bool
|
||
*/
|
||
protected static function fileIsAccessible($path)
|
||
{
|
||
if (!static::isPermittedPath($path)) {
|
||
return false;
|
||
}
|
||
$readable = is_file($path);
|
||
//If not a UNC path (expected to start with \\), check read permission, see #2069
|
||
if (strpos($path, '\\\\') !== 0) {
|
||
$readable = $readable && is_readable($path);
|
||
}
|
||
return $readable;
|
||
}
|
||
|
||
/**
|
||
* 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 = trim(implode(', ', $toArr));
|
||
|
||
//If there are no To-addresses (e.g. when sending only to BCC-addresses)
|
||
//the following should be added to get a correct DKIM-signature.
|
||
//Compare with $this->preSend()
|
||
if ($to === '') {
|
||
$to = 'undisclosed-recipients:;';
|
||
}
|
||
|
||
$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.
|
||
|
||
//PHP 5.6 workaround
|
||
$sendmail_from_value = ini_get('sendmail_from');
|
||
if (empty($this->Sender) && !empty($sendmail_from_value)) {
|
||
//PHP config has a sender address we can use
|
||
$this->Sender = ini_get('sendmail_from');
|
||
}
|
||
if (!empty($this->Sender) && static::validateAddress($this->Sender)) {
|
||
if (self::isShellSafe($this->Sender)) {
|
||
$params = sprintf('-f%s', $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);
|
||
$addrinfo = static::parseAddresses($toAddr, true, $this->CharSet);
|
||
$this->doCallback(
|
||
$result,
|
||
[[$addrinfo['address'], $addrinfo['name']]],
|
||
$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], 'name' => $to[1]];
|
||
}
|
||
}
|
||
|
||
//Only send the DATA command if we have viable recipients
|
||
if ((count($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'], $cb['name']]],
|
||
[],
|
||
[],
|
||
$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);
|
||
if ($this->Host === null) {
|
||
$this->Host = 'localhost';
|
||
}
|
||
$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()) {
|
||
$message = $this->getSmtpErrorMessage('connect_host');
|
||
throw new Exception($message);
|
||
}
|
||
//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 $lastexception;
|
||
}
|
||
if ($this->exceptions) {
|
||
// no exception was thrown, likely $this->smtp->connect() failed
|
||
$message = $this->getSmtpErrorMessage('connect_host');
|
||
throw new Exception($message);
|
||
}
|
||
|
||
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.
|
||
* The default language is English.
|
||
*
|
||
* @param string $langcode ISO 639-1 2-character language code (e.g. French is "fr")
|
||
* Optionally, the language code can be enhanced with a 4-character
|
||
* script annotation and/or a 2-character country annotation.
|
||
* @param string $lang_path Path to the language file directory, with trailing separator (slash)
|
||
* Do not set this from user input!
|
||
*
|
||
* @return bool Returns true if the requested language was loaded, false otherwise.
|
||
*/
|
||
public function setLanguage($langcode = 'en', $lang_path = '')
|
||
{
|
||
//Backwards compatibility for renamed language codes
|
||
$renamed_langcodes = [
|
||
'br' => 'pt_br',
|
||
'cz' => 'cs',
|
||
'dk' => 'da',
|
||
'no' => 'nb',
|
||
'se' => 'sv',
|
||
'rs' => 'sr',
|
||
'tg' => 'tl',
|
||
'am' => 'hy',
|
||
];
|
||
|
||
if (array_key_exists($langcode, $renamed_langcodes)) {
|
||
$langcode = $renamed_langcodes[$langcode];
|
||
}
|
||
|
||
//Define full set of translatable strings in English
|
||
$PHPMAILER_LANG = [
|
||
'authenticate' => 'SMTP Error: Could not authenticate.',
|
||
'buggy_php' => 'Your version of PHP is affected by a bug that may result in corrupted messages.' .
|
||
' To fix it, switch to sending using SMTP, disable the mail.add_x_header option in' .
|
||
' your php.ini, switch to MacOS or Linux, or upgrade your PHP to version 7.0.17+ or 7.1.3+.',
|
||
'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
|
||
'data_not_accepted' => 'SMTP Error: data not accepted.',
|
||
'empty_message' => 'Message body empty',
|
||
'encoding' => 'Unknown encoding: ',
|
||
'execute' => 'Could not execute: ',
|
||
'extension_missing' => 'Extension missing: ',
|
||
'file_access' => 'Could not access file: ',
|
||
'file_open' => 'File Error: Could not open file: ',
|
||
'from_failed' => 'The following From address failed: ',
|
||
'instantiate' => 'Could not instantiate mail function.',
|
||
'invalid_address' => 'Invalid address: ',
|
||
'invalid_header' => 'Invalid header name or value',
|
||
'invalid_hostentry' => 'Invalid hostentry: ',
|
||
'invalid_host' => 'Invalid host: ',
|
||
'mailer_not_supported' => ' mailer is not supported.',
|
||
'provide_address' => 'You must provide at least one recipient email address.',
|
||
'recipients_failed' => 'SMTP Error: The following recipients failed: ',
|
||
'signing' => 'Signing Error: ',
|
||
'smtp_code' => 'SMTP code: ',
|
||
'smtp_code_ex' => 'Additional SMTP info: ',
|
||
'smtp_connect_failed' => 'SMTP connect() failed.',
|
||
'smtp_detail' => 'Detail: ',
|
||
'smtp_error' => 'SMTP server error: ',
|
||
'variable_set' => 'Cannot set or reset variable: ',
|
||
];
|
||
if (empty($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
|
||
$foundlang = true;
|
||
$langcode = strtolower($langcode);
|
||
if (
|
||
!preg_match('/^(?P<lang>[a-z]{2})(?P<script>_[a-z]{4})?(?P<country>_[a-z]{2})?$/', $langcode, $matches)
|
||
&& $langcode !== 'en'
|
||
) {
|
||
$foundlang = false;
|
||
$langcode = 'en';
|
||
}
|
||
|
||
//There is no English translation file
|
||
if ('en' !== $langcode) {
|
||
$langcodes = [];
|
||
if (!empty($matches['script']) && !empty($matches['country'])) {
|
||
$langcodes[] = $matches['lang'] . $matches['script'] . $matches['country'];
|
||
}
|
||
if (!empty($matches['country'])) {
|
||
$langcodes[] = $matches['lang'] . $matches['country'];
|
||
}
|
||
if (!empty($matches['script'])) {
|
||
$langcodes[] = $matches['lang'] . $matches['script'];
|
||
}
|
||
$langcodes[] = $matches['lang'];
|
||
|
||
//Try and find a readable language file for the requested language.
|
||
$foundFile = false;
|
||
foreach ($langcodes as $code) {
|
||
$lang_file = $lang_path . 'phpmailer.lang-' . $code . '.php';
|
||
if (static::fileIsAccessible($lang_file)) {
|
||
$foundFile = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if ($foundFile === false) {
|
||
$foundlang = false;
|
||
} else {
|
||
$lines = file($lang_file);
|
||
foreach ($lines as $line) {
|
||
//Translation file lines look like this:
|
||
//$PHPMAILER_LANG['authenticate'] = 'SMTP-Fehler: Authentifizierung fehlgeschlagen.';
|
||
//These files are parsed as text and not PHP so as to avoid the possibility of code injection
|
||
//See https://blog.stevenlevithan.com/archives/match-quoted-string
|
||
$matches = [];
|
||
if (
|
||
preg_match(
|
||
'/^\$PHPMAILER_LANG\[\'([a-z\d_]+)\'\]\s*=\s*(["\'])(.+)*?\2;/',
|
||
$line,
|
||
$matches
|
||
) &&
|
||
//Ignore unknown translation keys
|
||
array_key_exists($matches[1], $PHPMAILER_LANG)
|
||
) {
|
||
//Overwrite language-specific strings so we'll never have missing translation keys.
|
||
$PHPMAILER_LANG[$matches[1]] = (string)$matches[3];
|
||
}
|
||
}
|
||
}
|
||
}
|
||
$this->language = $PHPMAILER_LANG;
|
||
|
||
return $foundlang; //Returns false if language not found
|
||
}
|
||
|
||
/**
|
||
* Get the array of strings for the current language.
|
||
*
|
||
* @return array
|
||
*/
|
||
public function getTranslations()
|
||
{
|
||
if (empty($this->language)) {
|
||
$this->setLanguage(); // Set the default language.
|
||
}
|
||
|
||
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);
|
||
|
||
//The To header is created automatically by mail(), so needs to be omitted here
|
||
if ('mail' !== $this->Mailer) {
|
||
if ($this->SingleTo) {
|
||
foreach ($this->to as $toaddr) {
|
||
$this->SingleToArray[] = $this->addrFormat($toaddr);
|
||
}
|
||
} elseif (count($this->to) > 0) {
|
||
$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 (
|
||
'' !== $this->MessageID &&
|
||
preg_match(
|
||
'/^<((([a-z\d!#$%&\'*+\/=?^_`{|}~-]+(\.[a-z\d!#$%&\'*+\/=?^_`{|}~-]+)*)' .
|
||
'|("(([\x01-\x08\x0B\x0C\x0E-\x1F\x7F]|[\x21\x23-\x5B\x5D-\x7E])' .
|
||
'|(\\[\x01-\x09\x0B\x0C\x0E-\x7F]))*"))@(([a-z\d!#$%&\'*+\/=?^_`{|}~-]+' .
|
||
'(\.[a-z\d!#$%&\'*+\/=?^_`{|}~-]+)*)|(\[(([\x01-\x08\x0B\x0C\x0E-\x1F\x7F]' .
|
||
'|[\x21-\x5A\x5E-\x7E])|(\\[\x01-\x09\x0B\x0C\x0E-\x7F]))*\])))>$/Di',
|
||
$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) {
|
||
//Empty string for default X-Mailer header
|
||
$result .= $this->headerLine(
|
||
'X-Mailer',
|
||
'PHPMailer ' . self::VERSION . ' (https://github.com/PHPMailer/PHPMailer)'
|
||
);
|
||
} elseif (is_string($this->XMailer) && trim($this->XMailer) !== '') {
|
||
//Some string
|
||
$result .= $this->headerLine('X-Mailer', trim($this->XMailer));
|
||
} //Other values result in no X-Mailer header
|
||
|
||
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);
|
||
}
|
||
}
|
||
|
||
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 MIME type, e.g. `image/jpeg`; determined automatically from $path if not specified
|
||
* @param string $disposition Disposition to use
|
||
*
|
||
* @throws Exception
|
||
*
|
||
* @return bool
|
||
*/
|
||
public function addAttachment(
|
||
$path,
|
||
$name = '',
|
||
$encoding = self::ENCODING_BASE64,
|
||
$type = '',
|
||
$disposition = 'attachment'
|
||
) {
|
||
try {
|
||
if (!static::fileIsAccessible($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, $encoding = self::ENCODING_BASE64)
|
||
{
|
||
try {
|
||
if (!static::fileIsAccessible($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 in `img` tags, for example `<img src="cid:mylogo">`.
|
||
* 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 filename
|
||
* @param string $encoding File encoding (see $Encoding) defaults to `base64`
|
||
* @param string $type File MIME type (by default mapped from the `$path` filename's extension)
|
||
* @param string $disposition Disposition to use: `inline` (default) or `attachment`
|
||
* (unlikely you want this – {@see `addAttachment()`} instead)
|
||
*
|
||
* @return bool True on successfully adding an attachment
|
||
* @throws Exception
|
||
*
|
||
*/
|
||
public function addEmbeddedImage(
|
||
$path,
|
||
$cid,
|
||
$name = '',
|
||
$encoding = self::ENCODING_BASE64,
|
||
$type = '',
|
||
$disposition = 'inline'
|
||
) {
|
||
try {
|
||
if (!static::fileIsAccessible($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 .= ' ' . $this->lang('smtp_detail') . $lasterror['detail'];
|
||
}
|
||
if (!empty($lasterror['smtp_code'])) {
|
||
$msg .= ' ' . $this->lang('smtp_code') . $lasterror['smtp_code'];
|
||
}
|
||
if (!empty($lasterror['smtp_code_ex'])) {
|
||
$msg .= ' ' . $this->lang('smtp_code_ex') . $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;
|
||
}
|
||
//Is it a syntactically valid hostname (when embeded in a URL)?
|
||
return filter_var('http://' . $host, FILTER_VALIDATE_URL) !== 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;
|
||
}
|
||
|
||
/**
|
||
* Build an error message starting with a generic one and adding details if possible.
|
||
*
|
||
* @param string $base_key
|
||
* @return string
|
||
*/
|
||
private function getSmtpErrorMessage($base_key)
|
||
{
|
||
$message = $this->lang($base_key);
|
||
$error = $this->smtp->getError();
|
||
if (!empty($error['error'])) {
|
||
$message .= ' ' . $error['error'];
|
||
if (!empty($error['detail'])) {
|
||
$message .= ' ' . $error['detail'];
|
||
}
|
||
}
|
||
|
||
return $message;
|
||
}
|
||
|
||
/**
|
||
* 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 = (null === $value) ? '' : trim($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($this->lang('invalid_header'));
|
||
}
|
||
|
||
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 $advanced Whether to use the internal HTML to text converter
|
||
* or your own custom converter
|
||
* @return string The transformed message body
|
||
*
|
||
* @throws Exception
|
||
*
|
||
* @see PHPMailer::html2text()
|
||
*/
|
||
public function msgHTML($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 $advanced Any boolean value to use the internal converter,
|
||
* or provide your own callable for custom conversion.
|
||
* *Never* pass user-supplied data into this parameter
|
||
*
|
||
* @return string
|
||
*/
|
||
public function html2text($html, $advanced = false)
|
||
{
|
||
if (is_callable($advanced)) {
|
||
return call_user_func($advanced, $html);
|
||
}
|
||
|
||
return html_entity_decode(
|
||
trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))),
|
||
ENT_QUOTES,
|
||
$this->CharSet
|
||
);
|
||
}
|
||
|
||
/**
|
||
* Get the MIME type for a file extension.
|
||
*
|
||
* @param string $ext File extension
|
||
*
|
||
* @return string MIME type of file
|
||
*/
|
||
public static function _mime_types($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',
|
||
'avif' => 'image/avif',
|
||
'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',
|
||
'csv' => 'text/csv',
|
||
'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, $privKey, 'sha256WithRSAEncryption')) {
|
||
if (\PHP_MAJOR_VERSION < 8) {
|
||
openssl_pkey_free($privKey);
|
||
}
|
||
|
||
return base64_encode($signature);
|
||
}
|
||
if (\PHP_MAJOR_VERSION < 8) {
|
||
openssl_pkey_free($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);
|
||
//Base64 of packed binary SHA-256 hash of body
|
||
$DKIMb64 = base64_encode(pack('H*', hash('sha256', $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 OAuthTokenProvider instance.
|
||
*
|
||
* @return OAuthTokenProvider
|
||
*/
|
||
public function getOAuth()
|
||
{
|
||
return $this->oauth;
|
||
}
|
||
|
||
/**
|
||
* Set an OAuthTokenProvider instance.
|
||
*/
|
||
public function setOAuth(OAuthTokenProvider $oauth)
|
||
{
|
||
$this->oauth = $oauth;
|
||
}
|
||
}
|