mirror of
https://github.com/codeigniter4/CodeIgniter4.git
synced 2025-02-20 11:44:28 +08:00
2278 lines
59 KiB
PHP
2278 lines
59 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* This file is part of CodeIgniter 4 framework.
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*
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* (c) CodeIgniter Foundation <admin@codeigniter.com>
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*
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* For the full copyright and license information, please view
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* the LICENSE file that was distributed with this source code.
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*/
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namespace CodeIgniter\Email;
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use CodeIgniter\Events\Events;
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use CodeIgniter\I18n\Time;
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use Config\Mimes;
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use ErrorException;
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/**
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* CodeIgniter Email Class
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*
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* Permits email to be sent using Mail, Sendmail, or SMTP.
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*
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* @see \CodeIgniter\Email\EmailTest
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*/
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class Email
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{
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/**
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* Properties from the last successful send.
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*
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* @var array|null
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*/
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public $archive;
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/**
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* Properties to be added to the next archive.
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*
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* @var array
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*/
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protected $tmpArchive = [];
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/**
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* @var string
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*/
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public $fromEmail;
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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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* Used as the User-Agent and X-Mailer headers' value.
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*
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* @var string
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*/
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public $userAgent = 'CodeIgniter';
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/**
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* Path to the Sendmail binary.
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*
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* @var string
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*/
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public $mailPath = '/usr/sbin/sendmail';
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/**
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* Which method to use for sending e-mails.
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*
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* @var string 'mail', 'sendmail' or 'smtp'
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*/
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public $protocol = 'mail';
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/**
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* STMP Server Hostname
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*
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* @var string
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*/
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public $SMTPHost = '';
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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 $SMTPUser = '';
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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 $SMTPPass = '';
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/**
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* SMTP Server port
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*
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* @var int
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*/
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public $SMTPPort = 25;
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/**
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* SMTP connection timeout in seconds
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*
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* @var int
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*/
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public $SMTPTimeout = 5;
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/**
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* SMTP persistent connection
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*
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* @var bool
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*/
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public $SMTPKeepAlive = false;
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/**
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* SMTP Encryption
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*
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* @var string '', 'tls' or 'ssl'. 'tls' will issue a STARTTLS command
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* to the server. 'ssl' means implicit SSL. Connection on port
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* 465 should set this to ''.
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*/
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public $SMTPCrypto = '';
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/**
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* Whether to apply word-wrapping to the message body.
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*
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* @var bool
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*/
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public $wordWrap = true;
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/**
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* Number of characters to wrap at.
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*
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* @see Email::$wordWrap
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*
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* @var int
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*/
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public $wrapChars = 76;
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/**
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* Message format.
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*
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* @var string 'text' or 'html'
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*/
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public $mailType = 'text';
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/**
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* Character set (default: utf-8)
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*
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* @var string
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*/
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public $charset = 'UTF-8';
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/**
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* Alternative message (for HTML messages only)
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*
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* @var string
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*/
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public $altMessage = '';
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/**
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* Whether to validate e-mail addresses.
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*
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* @var bool
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*/
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public $validate = true;
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/**
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* X-Priority header value.
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*
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* @var int 1-5
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*/
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public $priority = 3;
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/**
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* Newline character sequence.
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* Use "\r\n" to comply with RFC 822.
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*
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* @see http://www.ietf.org/rfc/rfc822.txt
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*
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* @var string "\r\n" or "\n"
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*/
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public $newline = "\r\n";
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/**
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* CRLF character sequence
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*
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* RFC 2045 specifies that for 'quoted-printable' encoding,
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* "\r\n" must be used. However, it appears that some servers
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* (even on the receiving end) don't handle it properly and
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* switching to "\n", while improper, is the only solution
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* that seems to work for all environments.
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*
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* @see http://www.ietf.org/rfc/rfc822.txt
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*
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* @var string
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*/
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public $CRLF = "\r\n";
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/**
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* Whether to use Delivery Status Notification.
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*
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* @var bool
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*/
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public $DSN = false;
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/**
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* Whether to send multipart alternatives.
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* Yahoo! doesn't seem to like these.
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*
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* @var bool
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*/
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public $sendMultipart = true;
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/**
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* Whether to send messages to BCC recipients in batches.
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*
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* @var bool
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*/
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public $BCCBatchMode = false;
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/**
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* BCC Batch max number size.
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*
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* @see Email::$BCCBatchMode
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*
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* @var int|string
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*/
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public $BCCBatchSize = 200;
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/**
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* Subject header
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*
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* @var string
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*/
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protected $subject = '';
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/**
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* Message body
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*
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* @var string
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*/
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protected $body = '';
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/**
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* Final message body to be sent.
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*
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* @var string
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*/
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protected $finalBody = '';
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/**
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* Final headers to send
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*
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* @var string
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*/
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protected $headerStr = '';
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/**
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* SMTP Connection socket placeholder
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*
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* @var resource|null
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*/
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protected $SMTPConnect;
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/**
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* Mail encoding
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*
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* @var string '8bit' or '7bit'
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*/
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protected $encoding = '8bit';
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/**
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* Whether to perform SMTP authentication
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*
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* @var bool
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*/
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protected $SMTPAuth = false;
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/**
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* Whether to send a Reply-To header
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*
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* @var bool
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*/
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protected $replyToFlag = false;
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/**
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* Debug messages
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*
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* @see Email::printDebugger()
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*
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* @var array
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*/
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protected $debugMessage = [];
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/**
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* Raw debug messages
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*
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* @var list<string>
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*/
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private array $debugMessageRaw = [];
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/**
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* Recipients
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*
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* @var array|string
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*/
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protected $recipients = [];
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/**
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* CC Recipients
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*
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* @var array
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*/
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protected $CCArray = [];
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/**
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* BCC Recipients
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*
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* @var array
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*/
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protected $BCCArray = [];
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/**
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* Message headers
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*
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* @var array
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*/
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protected $headers = [];
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/**
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* Attachment data
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*
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* @var array
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*/
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protected $attachments = [];
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/**
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* Valid $protocol values
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*
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* @see Email::$protocol
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*
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* @var array
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*/
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protected $protocols = [
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'mail',
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'sendmail',
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'smtp',
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];
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/**
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* Character sets valid for 7-bit encoding,
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* excluding language suffix.
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*
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* @var list<string>
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*/
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protected $baseCharsets = [
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'us-ascii',
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'iso-2022-',
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];
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/**
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* Bit depths
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*
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* Valid mail encodings
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*
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* @see Email::$encoding
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*
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* @var array
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*/
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protected $bitDepths = [
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'7bit',
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'8bit',
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];
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/**
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* $priority translations
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*
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* Actual values to send with the X-Priority header
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*
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* @var array
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*/
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protected $priorities = [
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1 => '1 (Highest)',
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2 => '2 (High)',
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3 => '3 (Normal)',
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4 => '4 (Low)',
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5 => '5 (Lowest)',
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];
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/**
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* mbstring.func_overload flag
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*
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* @var bool
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*/
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protected static $func_overload;
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/**
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* @param array|\Config\Email|null $config
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*/
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public function __construct($config = null)
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{
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$this->initialize($config);
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if (! isset(static::$func_overload)) {
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static::$func_overload = (extension_loaded('mbstring') && ini_get('mbstring.func_overload'));
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}
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}
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/**
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* Initialize preferences
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*
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* @param array|\Config\Email|null $config
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*
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* @return Email
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*/
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public function initialize($config)
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{
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$this->clear();
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if ($config instanceof \Config\Email) {
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$config = get_object_vars($config);
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}
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foreach (array_keys(get_class_vars(static::class)) as $key) {
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if (property_exists($this, $key) && isset($config[$key])) {
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$method = 'set' . ucfirst($key);
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if (method_exists($this, $method)) {
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$this->{$method}($config[$key]);
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} else {
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$this->{$key} = $config[$key];
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}
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}
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}
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$this->charset = strtoupper($this->charset);
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$this->SMTPAuth = isset($this->SMTPUser[0], $this->SMTPPass[0]);
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return $this;
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}
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/**
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* @param bool $clearAttachments
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*
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* @return Email
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*/
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public function clear($clearAttachments = false)
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{
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$this->subject = '';
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$this->body = '';
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$this->finalBody = '';
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$this->headerStr = '';
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$this->replyToFlag = false;
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$this->recipients = [];
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$this->CCArray = [];
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$this->BCCArray = [];
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$this->headers = [];
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$this->debugMessage = [];
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$this->debugMessageRaw = [];
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$this->setHeader('Date', $this->setDate());
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if ($clearAttachments !== false) {
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$this->attachments = [];
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}
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return $this;
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}
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/**
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* @param string $from
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* @param string $name
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* @param string|null $returnPath Return-Path
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*
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* @return Email
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*/
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public function setFrom($from, $name = '', $returnPath = null)
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{
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if (preg_match('/\<(.*)\>/', $from, $match)) {
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$from = $match[1];
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}
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if ($this->validate) {
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$this->validateEmail($this->stringToArray($from));
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if ($returnPath !== null) {
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$this->validateEmail($this->stringToArray($returnPath));
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}
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}
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$this->tmpArchive['fromEmail'] = $from;
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$this->tmpArchive['fromName'] = $name;
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if ($name !== '') {
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// only use Q encoding if there are characters that would require it
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if (preg_match('/[\200-\377]/', $name) !== 1) {
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$name = '"' . addcslashes($name, "\0..\37\177'\"\\") . '"';
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} else {
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$name = $this->prepQEncoding($name);
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}
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}
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$this->setHeader('From', $name . ' <' . $from . '>');
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if (! isset($returnPath)) {
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$returnPath = $from;
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}
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$this->setHeader('Return-Path', '<' . $returnPath . '>');
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$this->tmpArchive['returnPath'] = $returnPath;
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return $this;
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}
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/**
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* @param string $replyto
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* @param string $name
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*
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* @return Email
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*/
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public function setReplyTo($replyto, $name = '')
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{
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if (preg_match('/\<(.*)\>/', $replyto, $match)) {
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$replyto = $match[1];
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}
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if ($this->validate) {
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$this->validateEmail($this->stringToArray($replyto));
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}
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if ($name !== '') {
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$this->tmpArchive['replyName'] = $name;
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// only use Q encoding if there are characters that would require it
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if (preg_match('/[\200-\377]/', $name) !== 1) {
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$name = '"' . addcslashes($name, "\0..\37\177'\"\\") . '"';
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} else {
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$name = $this->prepQEncoding($name);
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}
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}
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$this->setHeader('Reply-To', $name . ' <' . $replyto . '>');
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$this->replyToFlag = true;
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$this->tmpArchive['replyTo'] = $replyto;
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return $this;
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}
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/**
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* @param array|string $to
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*
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* @return Email
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*/
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public function setTo($to)
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{
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$to = $this->stringToArray($to);
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$to = $this->cleanEmail($to);
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if ($this->validate) {
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$this->validateEmail($to);
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}
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if ($this->getProtocol() !== 'mail') {
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$this->setHeader('To', implode(', ', $to));
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}
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$this->recipients = $to;
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return $this;
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}
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/**
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* @param string $cc
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*
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* @return Email
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*/
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public function setCC($cc)
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{
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$cc = $this->cleanEmail($this->stringToArray($cc));
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if ($this->validate) {
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$this->validateEmail($cc);
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}
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$this->setHeader('Cc', implode(', ', $cc));
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if ($this->getProtocol() === 'smtp') {
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$this->CCArray = $cc;
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}
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$this->tmpArchive['CCArray'] = $cc;
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return $this;
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}
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/**
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* @param string $bcc
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* @param string $limit
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*
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* @return Email
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*/
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public function setBCC($bcc, $limit = '')
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{
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if ($limit !== '' && is_numeric($limit)) {
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$this->BCCBatchMode = true;
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$this->BCCBatchSize = $limit;
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}
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$bcc = $this->cleanEmail($this->stringToArray($bcc));
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if ($this->validate) {
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$this->validateEmail($bcc);
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}
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if ($this->getProtocol() === 'smtp' || ($this->BCCBatchMode && count($bcc) > $this->BCCBatchSize)) {
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$this->BCCArray = $bcc;
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} else {
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$this->setHeader('Bcc', implode(', ', $bcc));
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$this->tmpArchive['BCCArray'] = $bcc;
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}
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return $this;
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}
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/**
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* @param string $subject
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*
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* @return Email
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*/
|
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public function setSubject($subject)
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{
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$this->tmpArchive['subject'] = $subject;
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$subject = $this->prepQEncoding($subject);
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$this->setHeader('Subject', $subject);
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return $this;
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}
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/**
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* @param string $body
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*
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* @return Email
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*/
|
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public function setMessage($body)
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{
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$this->body = rtrim(str_replace("\r", '', $body));
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return $this;
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}
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|
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/**
|
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* @param string $file Can be local path, URL or buffered content
|
|
* @param string $disposition 'attachment'
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|
* @param string|null $newname
|
|
* @param string $mime
|
|
*
|
|
* @return bool|Email
|
|
*/
|
|
public function attach($file, $disposition = '', $newname = null, $mime = '')
|
|
{
|
|
if ($mime === '') {
|
|
if (! str_contains($file, '://') && ! is_file($file)) {
|
|
$this->setErrorMessage(lang('Email.attachmentMissing', [$file]));
|
|
|
|
return false;
|
|
}
|
|
|
|
if (! $fp = @fopen($file, 'rb')) {
|
|
$this->setErrorMessage(lang('Email.attachmentUnreadable', [$file]));
|
|
|
|
return false;
|
|
}
|
|
|
|
$fileContent = stream_get_contents($fp);
|
|
|
|
$mime = $this->mimeTypes(pathinfo($file, PATHINFO_EXTENSION));
|
|
|
|
fclose($fp);
|
|
} else {
|
|
$fileContent = &$file; // buffered file
|
|
}
|
|
|
|
// declare names on their own, to make phpcbf happy
|
|
$namesAttached = [$file, $newname];
|
|
|
|
$this->attachments[] = [
|
|
'name' => $namesAttached,
|
|
'disposition' => empty($disposition) ? 'attachment' : $disposition,
|
|
// Can also be 'inline' Not sure if it matters
|
|
'type' => $mime,
|
|
'content' => chunk_split(base64_encode($fileContent)),
|
|
'multipart' => 'mixed',
|
|
];
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Set and return attachment Content-ID
|
|
* Useful for attached inline pictures
|
|
*
|
|
* @param string $filename
|
|
*
|
|
* @return bool|string
|
|
*/
|
|
public function setAttachmentCID($filename)
|
|
{
|
|
foreach ($this->attachments as $i => $attachment) {
|
|
// For file path.
|
|
if ($attachment['name'][0] === $filename) {
|
|
$this->attachments[$i]['multipart'] = 'related';
|
|
|
|
$this->attachments[$i]['cid'] = uniqid(basename($attachment['name'][0]) . '@', true);
|
|
|
|
return $this->attachments[$i]['cid'];
|
|
}
|
|
|
|
// For buffer string.
|
|
if ($attachment['name'][1] === $filename) {
|
|
$this->attachments[$i]['multipart'] = 'related';
|
|
|
|
$this->attachments[$i]['cid'] = uniqid(basename($attachment['name'][1]) . '@', true);
|
|
|
|
return $this->attachments[$i]['cid'];
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param string $header
|
|
* @param string $value
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setHeader($header, $value)
|
|
{
|
|
$this->headers[$header] = str_replace(["\n", "\r"], '', $value);
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param array|string $email
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function stringToArray($email)
|
|
{
|
|
if (! is_array($email)) {
|
|
return (str_contains($email, ',')) ? preg_split('/[\s,]/', $email, -1, PREG_SPLIT_NO_EMPTY) : (array) trim($email);
|
|
}
|
|
|
|
return $email;
|
|
}
|
|
|
|
/**
|
|
* @param string $str
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setAltMessage($str)
|
|
{
|
|
$this->altMessage = (string) $str;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param string $type
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setMailType($type = 'text')
|
|
{
|
|
$this->mailType = ($type === 'html') ? 'html' : 'text';
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param bool $wordWrap
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setWordWrap($wordWrap = true)
|
|
{
|
|
$this->wordWrap = (bool) $wordWrap;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param string $protocol
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setProtocol($protocol = 'mail')
|
|
{
|
|
$this->protocol = in_array($protocol, $this->protocols, true) ? strtolower($protocol) : 'mail';
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param int $n
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setPriority($n = 3)
|
|
{
|
|
$this->priority = preg_match('/^[1-5]$/', (string) $n) ? (int) $n : 3;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param string $newline
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setNewline($newline = "\n")
|
|
{
|
|
$this->newline = in_array($newline, ["\n", "\r\n", "\r"], true) ? $newline : "\n";
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param string $CRLF
|
|
*
|
|
* @return Email
|
|
*/
|
|
public function setCRLF($CRLF = "\n")
|
|
{
|
|
$this->CRLF = ($CRLF !== "\n" && $CRLF !== "\r\n" && $CRLF !== "\r") ? "\n" : $CRLF;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
protected function getMessageID()
|
|
{
|
|
$from = str_replace(['>', '<'], '', $this->headers['Return-Path']);
|
|
|
|
return '<' . uniqid('', true) . strstr($from, '@') . '>';
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
protected function getProtocol()
|
|
{
|
|
$this->protocol = strtolower($this->protocol);
|
|
|
|
if (! in_array($this->protocol, $this->protocols, true)) {
|
|
$this->protocol = 'mail';
|
|
}
|
|
|
|
return $this->protocol;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
protected function getEncoding()
|
|
{
|
|
if (! in_array($this->encoding, $this->bitDepths, true)) {
|
|
$this->encoding = '8bit';
|
|
}
|
|
|
|
foreach ($this->baseCharsets as $charset) {
|
|
if (str_starts_with($this->charset, $charset)) {
|
|
$this->encoding = '7bit';
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $this->encoding;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
protected function getContentType()
|
|
{
|
|
if ($this->mailType === 'html') {
|
|
return empty($this->attachments) ? 'html' : 'html-attach';
|
|
}
|
|
|
|
if ($this->mailType === 'text' && ! empty($this->attachments)) {
|
|
return 'plain-attach';
|
|
}
|
|
|
|
return 'plain';
|
|
}
|
|
|
|
/**
|
|
* Set RFC 822 Date
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function setDate()
|
|
{
|
|
$timezone = date('Z');
|
|
$operator = ($timezone[0] === '-') ? '-' : '+';
|
|
$timezone = abs((int) $timezone);
|
|
$timezone = floor($timezone / 3600) * 100 + ($timezone % 3600) / 60;
|
|
|
|
return sprintf('%s %s%04d', date('D, j M Y H:i:s'), $operator, $timezone);
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
protected function getMimeMessage()
|
|
{
|
|
return 'This is a multi-part message in MIME format.' . $this->newline . 'Your email application may not support this format.';
|
|
}
|
|
|
|
/**
|
|
* @param array|string $email
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function validateEmail($email)
|
|
{
|
|
if (! is_array($email)) {
|
|
$this->setErrorMessage(lang('Email.mustBeArray'));
|
|
|
|
return false;
|
|
}
|
|
|
|
foreach ($email as $val) {
|
|
if (! $this->isValidEmail($val)) {
|
|
$this->setErrorMessage(lang('Email.invalidAddress', [$val]));
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param string $email
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isValidEmail($email)
|
|
{
|
|
if (function_exists('idn_to_ascii') && defined('INTL_IDNA_VARIANT_UTS46') && $atpos = strpos($email, '@')) {
|
|
$email = static::substr($email, 0, ++$atpos)
|
|
. idn_to_ascii(static::substr($email, $atpos), 0, INTL_IDNA_VARIANT_UTS46);
|
|
}
|
|
|
|
return (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
|
|
}
|
|
|
|
/**
|
|
* @param array|string $email
|
|
*
|
|
* @return array|string
|
|
*/
|
|
public function cleanEmail($email)
|
|
{
|
|
if (! is_array($email)) {
|
|
return preg_match('/\<(.*)\>/', $email, $match) ? $match[1] : $email;
|
|
}
|
|
|
|
$cleanEmail = [];
|
|
|
|
foreach ($email as $addy) {
|
|
$cleanEmail[] = preg_match('/\<(.*)\>/', $addy, $match) ? $match[1] : $addy;
|
|
}
|
|
|
|
return $cleanEmail;
|
|
}
|
|
|
|
/**
|
|
* Build alternative plain text message
|
|
*
|
|
* Provides the raw message for use in plain-text headers of
|
|
* HTML-formatted emails.
|
|
*
|
|
* If the user hasn't specified his own alternative message
|
|
* it creates one by stripping the HTML
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function getAltMessage()
|
|
{
|
|
if (! empty($this->altMessage)) {
|
|
return ($this->wordWrap) ? $this->wordWrap($this->altMessage, 76) : $this->altMessage;
|
|
}
|
|
|
|
$body = preg_match('/\<body.*?\>(.*)\<\/body\>/si', $this->body, $match) ? $match[1] : $this->body;
|
|
$body = str_replace("\t", '', preg_replace('#<!--(.*)--\>#', '', trim(strip_tags($body))));
|
|
|
|
for ($i = 20; $i >= 3; $i--) {
|
|
$body = str_replace(str_repeat("\n", $i), "\n\n", $body);
|
|
}
|
|
|
|
$body = preg_replace('| +|', ' ', $body);
|
|
|
|
return ($this->wordWrap) ? $this->wordWrap($body, 76) : $body;
|
|
}
|
|
|
|
/**
|
|
* @param string $str
|
|
* @param int|null $charlim Line-length limit
|
|
*
|
|
* @return string
|
|
*/
|
|
public function wordWrap($str, $charlim = null)
|
|
{
|
|
if (empty($charlim)) {
|
|
$charlim = empty($this->wrapChars) ? 76 : $this->wrapChars;
|
|
}
|
|
|
|
if (str_contains($str, "\r")) {
|
|
$str = str_replace(["\r\n", "\r"], "\n", $str);
|
|
}
|
|
|
|
$str = preg_replace('| +\n|', "\n", $str);
|
|
|
|
$unwrap = [];
|
|
|
|
if (preg_match_all('|\{unwrap\}(.+?)\{/unwrap\}|s', $str, $matches) >= 1) {
|
|
for ($i = 0, $c = count($matches[0]); $i < $c; $i++) {
|
|
$unwrap[] = $matches[1][$i];
|
|
$str = str_replace($matches[0][$i], '{{unwrapped' . $i . '}}', $str);
|
|
}
|
|
}
|
|
|
|
// Use PHP's native function to do the initial wordwrap.
|
|
// We set the cut flag to FALSE so that any individual words that are
|
|
// too long get left alone. In the next step we'll deal with them.
|
|
$str = wordwrap($str, $charlim, "\n", false);
|
|
|
|
// Split the string into individual lines of text and cycle through them
|
|
$output = '';
|
|
|
|
foreach (explode("\n", $str) as $line) {
|
|
if (static::strlen($line) <= $charlim) {
|
|
$output .= $line . $this->newline;
|
|
|
|
continue;
|
|
}
|
|
|
|
$temp = '';
|
|
|
|
do {
|
|
if (preg_match('!\[url.+\]|://|www\.!', $line)) {
|
|
break;
|
|
}
|
|
|
|
$temp .= static::substr($line, 0, $charlim - 1);
|
|
$line = static::substr($line, $charlim - 1);
|
|
} while (static::strlen($line) > $charlim);
|
|
|
|
if ($temp !== '') {
|
|
$output .= $temp . $this->newline;
|
|
}
|
|
|
|
$output .= $line . $this->newline;
|
|
}
|
|
|
|
foreach ($unwrap as $key => $val) {
|
|
$output = str_replace('{{unwrapped' . $key . '}}', $val, $output);
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Build final headers
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function buildHeaders()
|
|
{
|
|
$this->setHeader('User-Agent', $this->userAgent);
|
|
$this->setHeader('X-Sender', $this->cleanEmail($this->headers['From']));
|
|
$this->setHeader('X-Mailer', $this->userAgent);
|
|
$this->setHeader('X-Priority', $this->priorities[$this->priority]);
|
|
$this->setHeader('Message-ID', $this->getMessageID());
|
|
$this->setHeader('Mime-Version', '1.0');
|
|
}
|
|
|
|
/**
|
|
* Write Headers as a string
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function writeHeaders()
|
|
{
|
|
if ($this->protocol === 'mail' && isset($this->headers['Subject'])) {
|
|
$this->subject = $this->headers['Subject'];
|
|
unset($this->headers['Subject']);
|
|
}
|
|
|
|
reset($this->headers);
|
|
$this->headerStr = '';
|
|
|
|
foreach ($this->headers as $key => $val) {
|
|
$val = trim($val);
|
|
|
|
if ($val !== '') {
|
|
$this->headerStr .= $key . ': ' . $val . $this->newline;
|
|
}
|
|
}
|
|
|
|
if ($this->getProtocol() === 'mail') {
|
|
$this->headerStr = rtrim($this->headerStr);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Build Final Body and attachments
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function buildMessage()
|
|
{
|
|
if ($this->wordWrap === true && $this->mailType !== 'html') {
|
|
$this->body = $this->wordWrap($this->body);
|
|
}
|
|
|
|
$this->writeHeaders();
|
|
$hdr = ($this->getProtocol() === 'mail') ? $this->newline : '';
|
|
$body = '';
|
|
|
|
switch ($this->getContentType()) {
|
|
case 'plain':
|
|
$hdr .= 'Content-Type: text/plain; charset='
|
|
. $this->charset
|
|
. $this->newline
|
|
. 'Content-Transfer-Encoding: '
|
|
. $this->getEncoding();
|
|
|
|
if ($this->getProtocol() === 'mail') {
|
|
$this->headerStr .= $hdr;
|
|
$this->finalBody = $this->body;
|
|
} else {
|
|
$this->finalBody = $hdr . $this->newline . $this->newline . $this->body;
|
|
}
|
|
|
|
return;
|
|
|
|
case 'html':
|
|
$boundary = uniqid('B_ALT_', true);
|
|
|
|
if ($this->sendMultipart === false) {
|
|
$hdr .= 'Content-Type: text/html; charset='
|
|
. $this->charset . $this->newline
|
|
. 'Content-Transfer-Encoding: quoted-printable';
|
|
} else {
|
|
$hdr .= 'Content-Type: multipart/alternative; boundary="' . $boundary . '"';
|
|
$body .= $this->getMimeMessage() . $this->newline . $this->newline
|
|
. '--' . $boundary . $this->newline
|
|
. 'Content-Type: text/plain; charset=' . $this->charset . $this->newline
|
|
. 'Content-Transfer-Encoding: ' . $this->getEncoding() . $this->newline . $this->newline
|
|
. $this->getAltMessage() . $this->newline . $this->newline
|
|
. '--' . $boundary . $this->newline
|
|
. 'Content-Type: text/html; charset=' . $this->charset . $this->newline
|
|
. 'Content-Transfer-Encoding: quoted-printable' . $this->newline . $this->newline;
|
|
}
|
|
|
|
$this->finalBody = $body . $this->prepQuotedPrintable($this->body) . $this->newline . $this->newline;
|
|
|
|
if ($this->getProtocol() === 'mail') {
|
|
$this->headerStr .= $hdr;
|
|
} else {
|
|
$this->finalBody = $hdr . $this->newline . $this->newline . $this->finalBody;
|
|
}
|
|
|
|
if ($this->sendMultipart !== false) {
|
|
$this->finalBody .= '--' . $boundary . '--';
|
|
}
|
|
|
|
return;
|
|
|
|
case 'plain-attach':
|
|
$boundary = uniqid('B_ATC_', true);
|
|
$hdr .= 'Content-Type: multipart/mixed; boundary="' . $boundary . '"';
|
|
|
|
if ($this->getProtocol() === 'mail') {
|
|
$this->headerStr .= $hdr;
|
|
}
|
|
|
|
$body .= $this->getMimeMessage() . $this->newline
|
|
. $this->newline
|
|
. '--' . $boundary . $this->newline
|
|
. 'Content-Type: text/plain; charset=' . $this->charset . $this->newline
|
|
. 'Content-Transfer-Encoding: ' . $this->getEncoding() . $this->newline
|
|
. $this->newline
|
|
. $this->body . $this->newline . $this->newline;
|
|
|
|
$this->appendAttachments($body, $boundary);
|
|
break;
|
|
|
|
case 'html-attach':
|
|
$altBoundary = uniqid('B_ALT_', true);
|
|
$lastBoundary = null;
|
|
|
|
if ($this->attachmentsHaveMultipart('mixed')) {
|
|
$atcBoundary = uniqid('B_ATC_', true);
|
|
$hdr .= 'Content-Type: multipart/mixed; boundary="' . $atcBoundary . '"';
|
|
$lastBoundary = $atcBoundary;
|
|
}
|
|
|
|
if ($this->attachmentsHaveMultipart('related')) {
|
|
$relBoundary = uniqid('B_REL_', true);
|
|
|
|
$relBoundaryHeader = 'Content-Type: multipart/related; boundary="' . $relBoundary . '"';
|
|
|
|
if (isset($lastBoundary)) {
|
|
$body .= '--' . $lastBoundary . $this->newline . $relBoundaryHeader;
|
|
} else {
|
|
$hdr .= $relBoundaryHeader;
|
|
}
|
|
|
|
$lastBoundary = $relBoundary;
|
|
}
|
|
|
|
if ($this->getProtocol() === 'mail') {
|
|
$this->headerStr .= $hdr;
|
|
}
|
|
|
|
if (static::strlen($body) > 0) {
|
|
$body .= $this->newline . $this->newline;
|
|
}
|
|
|
|
$body .= $this->getMimeMessage() . $this->newline . $this->newline
|
|
. '--' . $lastBoundary . $this->newline
|
|
. 'Content-Type: multipart/alternative; boundary="' . $altBoundary . '"' . $this->newline . $this->newline
|
|
. '--' . $altBoundary . $this->newline
|
|
. 'Content-Type: text/plain; charset=' . $this->charset . $this->newline
|
|
. 'Content-Transfer-Encoding: ' . $this->getEncoding() . $this->newline . $this->newline
|
|
. $this->getAltMessage() . $this->newline . $this->newline
|
|
. '--' . $altBoundary . $this->newline
|
|
. 'Content-Type: text/html; charset=' . $this->charset . $this->newline
|
|
. 'Content-Transfer-Encoding: quoted-printable' . $this->newline . $this->newline
|
|
. $this->prepQuotedPrintable($this->body) . $this->newline . $this->newline
|
|
. '--' . $altBoundary . '--' . $this->newline . $this->newline;
|
|
|
|
if (isset($relBoundary)) {
|
|
$body .= $this->newline . $this->newline;
|
|
$this->appendAttachments($body, $relBoundary, 'related');
|
|
}
|
|
|
|
// multipart/mixed attachments
|
|
if (isset($atcBoundary)) {
|
|
$body .= $this->newline . $this->newline;
|
|
$this->appendAttachments($body, $atcBoundary, 'mixed');
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
$this->finalBody = ($this->getProtocol() === 'mail') ? $body : $hdr . $this->newline . $this->newline . $body;
|
|
}
|
|
|
|
/**
|
|
* @param mixed $type
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function attachmentsHaveMultipart($type)
|
|
{
|
|
foreach ($this->attachments as &$attachment) {
|
|
if ($attachment['multipart'] === $type) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param string $body Message body to append to
|
|
* @param string $boundary Multipart boundary
|
|
* @param string|null $multipart When provided, only attachments of this type will be processed
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function appendAttachments(&$body, $boundary, $multipart = null)
|
|
{
|
|
foreach ($this->attachments as $attachment) {
|
|
if (isset($multipart) && $attachment['multipart'] !== $multipart) {
|
|
continue;
|
|
}
|
|
|
|
$name = $attachment['name'][1] ?? basename($attachment['name'][0]);
|
|
$body .= '--' . $boundary . $this->newline
|
|
. 'Content-Type: ' . $attachment['type'] . '; name="' . $name . '"' . $this->newline
|
|
. 'Content-Disposition: ' . $attachment['disposition'] . ';' . $this->newline
|
|
. 'Content-Transfer-Encoding: base64' . $this->newline
|
|
. (empty($attachment['cid']) ? '' : 'Content-ID: <' . $attachment['cid'] . '>' . $this->newline)
|
|
. $this->newline
|
|
. $attachment['content'] . $this->newline;
|
|
}
|
|
|
|
// $name won't be set if no attachments were appended,
|
|
// and therefore a boundary wouldn't be necessary
|
|
if (! empty($name)) {
|
|
$body .= '--' . $boundary . '--';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepares string for Quoted-Printable Content-Transfer-Encoding
|
|
* Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt
|
|
*
|
|
* @param string $str
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function prepQuotedPrintable($str)
|
|
{
|
|
// ASCII code numbers for "safe" characters that can always be
|
|
// used literally, without encoding, as described in RFC 2049.
|
|
// http://www.ietf.org/rfc/rfc2049.txt
|
|
static $asciiSafeChars = [
|
|
// ' ( ) + , - . / : = ?
|
|
39,
|
|
40,
|
|
41,
|
|
43,
|
|
44,
|
|
45,
|
|
46,
|
|
47,
|
|
58,
|
|
61,
|
|
63,
|
|
// numbers
|
|
48,
|
|
49,
|
|
50,
|
|
51,
|
|
52,
|
|
53,
|
|
54,
|
|
55,
|
|
56,
|
|
57,
|
|
// upper-case letters
|
|
65,
|
|
66,
|
|
67,
|
|
68,
|
|
69,
|
|
70,
|
|
71,
|
|
72,
|
|
73,
|
|
74,
|
|
75,
|
|
76,
|
|
77,
|
|
78,
|
|
79,
|
|
80,
|
|
81,
|
|
82,
|
|
83,
|
|
84,
|
|
85,
|
|
86,
|
|
87,
|
|
88,
|
|
89,
|
|
90,
|
|
// lower-case letters
|
|
97,
|
|
98,
|
|
99,
|
|
100,
|
|
101,
|
|
102,
|
|
103,
|
|
104,
|
|
105,
|
|
106,
|
|
107,
|
|
108,
|
|
109,
|
|
110,
|
|
111,
|
|
112,
|
|
113,
|
|
114,
|
|
115,
|
|
116,
|
|
117,
|
|
118,
|
|
119,
|
|
120,
|
|
121,
|
|
122,
|
|
];
|
|
|
|
// We are intentionally wrapping so mail servers will encode characters
|
|
// properly and MUAs will behave, so {unwrap} must go!
|
|
$str = str_replace(['{unwrap}', '{/unwrap}'], '', $str);
|
|
|
|
// RFC 2045 specifies CRLF as "\r\n".
|
|
// However, many developers choose to override that and violate
|
|
// the RFC rules due to (apparently) a bug in MS Exchange,
|
|
// which only works with "\n".
|
|
if ($this->CRLF === "\r\n") {
|
|
return quoted_printable_encode($str);
|
|
}
|
|
|
|
// Reduce multiple spaces & remove nulls
|
|
$str = preg_replace(['| +|', '/\x00+/'], [' ', ''], $str);
|
|
|
|
// Standardize newlines
|
|
if (str_contains($str, "\r")) {
|
|
$str = str_replace(["\r\n", "\r"], "\n", $str);
|
|
}
|
|
|
|
$escape = '=';
|
|
$output = '';
|
|
|
|
foreach (explode("\n", $str) as $line) {
|
|
$length = static::strlen($line);
|
|
$temp = '';
|
|
|
|
// Loop through each character in the line to add soft-wrap
|
|
// characters at the end of a line " =\r\n" and add the newly
|
|
// processed line(s) to the output (see comment on $crlf class property)
|
|
for ($i = 0; $i < $length; $i++) {
|
|
// Grab the next character
|
|
$char = $line[$i];
|
|
$ascii = ord($char);
|
|
|
|
// Convert spaces and tabs but only if it's the end of the line
|
|
if ($ascii === 32 || $ascii === 9) {
|
|
if ($i === ($length - 1)) {
|
|
$char = $escape . sprintf('%02s', dechex($ascii));
|
|
}
|
|
}
|
|
// DO NOT move this below the $ascii_safe_chars line!
|
|
//
|
|
// = (equals) signs are allowed by RFC2049, but must be encoded
|
|
// as they are the encoding delimiter!
|
|
elseif ($ascii === 61) {
|
|
$char = $escape . strtoupper(sprintf('%02s', dechex($ascii))); // =3D
|
|
} elseif (! in_array($ascii, $asciiSafeChars, true)) {
|
|
$char = $escape . strtoupper(sprintf('%02s', dechex($ascii)));
|
|
}
|
|
|
|
// If we're at the character limit, add the line to the output,
|
|
// reset our temp variable, and keep on chuggin'
|
|
if ((static::strlen($temp) + static::strlen($char)) >= 76) {
|
|
$output .= $temp . $escape . $this->CRLF;
|
|
$temp = '';
|
|
}
|
|
|
|
// Add the character to our temporary line
|
|
$temp .= $char;
|
|
}
|
|
|
|
// Add our completed line to the output
|
|
$output .= $temp . $this->CRLF;
|
|
}
|
|
|
|
// get rid of extra CRLF tacked onto the end
|
|
return static::substr($output, 0, static::strlen($this->CRLF) * -1);
|
|
}
|
|
|
|
/**
|
|
* Performs "Q Encoding" on a string for use in email headers.
|
|
* It's related but not identical to quoted-printable, so it has its
|
|
* own method.
|
|
*
|
|
* @param string $str
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function prepQEncoding($str)
|
|
{
|
|
$str = str_replace(["\r", "\n"], '', $str);
|
|
|
|
if ($this->charset === 'UTF-8') {
|
|
// Note: We used to have mb_encode_mimeheader() as the first choice
|
|
// here, but it turned out to be buggy and unreliable. DO NOT
|
|
// re-add it! -- Narf
|
|
if (extension_loaded('iconv')) {
|
|
$output = @iconv_mime_encode('', $str, [
|
|
'scheme' => 'Q',
|
|
'line-length' => 76,
|
|
'input-charset' => $this->charset,
|
|
'output-charset' => $this->charset,
|
|
'line-break-chars' => $this->CRLF,
|
|
]);
|
|
|
|
// There are reports that iconv_mime_encode() might fail and return FALSE
|
|
if ($output !== false) {
|
|
// iconv_mime_encode() will always put a header field name.
|
|
// We've passed it an empty one, but it still prepends our
|
|
// encoded string with ': ', so we need to strip it.
|
|
return static::substr($output, 2);
|
|
}
|
|
|
|
$chars = iconv_strlen($str, 'UTF-8');
|
|
} elseif (extension_loaded('mbstring')) {
|
|
$chars = mb_strlen($str, 'UTF-8');
|
|
}
|
|
}
|
|
|
|
// We might already have this set for UTF-8
|
|
if (! isset($chars)) {
|
|
$chars = static::strlen($str);
|
|
}
|
|
|
|
$output = '=?' . $this->charset . '?Q?';
|
|
|
|
for ($i = 0, $length = static::strlen($output); $i < $chars; $i++) {
|
|
$chr = ($this->charset === 'UTF-8' && extension_loaded('iconv')) ? '=' . implode('=', str_split(strtoupper(bin2hex(iconv_substr($str, $i, 1, $this->charset))), 2)) : '=' . strtoupper(bin2hex($str[$i]));
|
|
|
|
// RFC 2045 sets a limit of 76 characters per line.
|
|
// We'll append ?= to the end of each line though.
|
|
if ($length + ($l = static::strlen($chr)) > 74) {
|
|
$output .= '?=' . $this->CRLF // EOL
|
|
. ' =?' . $this->charset . '?Q?' . $chr; // New line
|
|
|
|
$length = 6 + static::strlen($this->charset) + $l; // Reset the length for the new line
|
|
} else {
|
|
$output .= $chr;
|
|
$length += $l;
|
|
}
|
|
}
|
|
|
|
// End the header
|
|
return $output . '?=';
|
|
}
|
|
|
|
/**
|
|
* @param bool $autoClear
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function send($autoClear = true)
|
|
{
|
|
if (! isset($this->headers['From']) && ! empty($this->fromEmail)) {
|
|
$this->setFrom($this->fromEmail, $this->fromName);
|
|
}
|
|
|
|
if (! isset($this->headers['From'])) {
|
|
$this->setErrorMessage(lang('Email.noFrom'));
|
|
|
|
return false;
|
|
}
|
|
|
|
if ($this->replyToFlag === false) {
|
|
$this->setReplyTo($this->headers['From']);
|
|
}
|
|
|
|
if (
|
|
empty($this->recipients) && ! isset($this->headers['To'])
|
|
&& empty($this->BCCArray) && ! isset($this->headers['Bcc'])
|
|
&& ! isset($this->headers['Cc'])
|
|
) {
|
|
$this->setErrorMessage(lang('Email.noRecipients'));
|
|
|
|
return false;
|
|
}
|
|
|
|
$this->buildHeaders();
|
|
|
|
if ($this->BCCBatchMode && count($this->BCCArray) > $this->BCCBatchSize) {
|
|
$this->batchBCCSend();
|
|
|
|
if ($autoClear) {
|
|
$this->clear();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
$this->buildMessage();
|
|
$result = $this->spoolEmail();
|
|
|
|
if ($result) {
|
|
$this->setArchiveValues();
|
|
|
|
if ($autoClear) {
|
|
$this->clear();
|
|
}
|
|
|
|
Events::trigger('email', $this->archive);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Batch Bcc Send. Sends groups of BCCs in batches
|
|
*
|
|
* @return void
|
|
*/
|
|
public function batchBCCSend()
|
|
{
|
|
$float = $this->BCCBatchSize - 1;
|
|
$set = '';
|
|
$chunk = [];
|
|
|
|
for ($i = 0, $c = count($this->BCCArray); $i < $c; $i++) {
|
|
if (isset($this->BCCArray[$i])) {
|
|
$set .= ', ' . $this->BCCArray[$i];
|
|
}
|
|
|
|
if ($i === $float) {
|
|
$chunk[] = static::substr($set, 1);
|
|
$float += $this->BCCBatchSize;
|
|
$set = '';
|
|
}
|
|
|
|
if ($i === $c - 1) {
|
|
$chunk[] = static::substr($set, 1);
|
|
}
|
|
}
|
|
|
|
for ($i = 0, $c = count($chunk); $i < $c; $i++) {
|
|
unset($this->headers['Bcc']);
|
|
$bcc = $this->cleanEmail($this->stringToArray($chunk[$i]));
|
|
|
|
if ($this->protocol !== 'smtp') {
|
|
$this->setHeader('Bcc', implode(', ', $bcc));
|
|
} else {
|
|
$this->BCCArray = $bcc;
|
|
}
|
|
|
|
$this->buildMessage();
|
|
$this->spoolEmail();
|
|
}
|
|
|
|
// Update the archive
|
|
$this->setArchiveValues();
|
|
Events::trigger('email', $this->archive);
|
|
}
|
|
|
|
/**
|
|
* Unwrap special elements
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function unwrapSpecials()
|
|
{
|
|
$this->finalBody = preg_replace_callback(
|
|
'/\{unwrap\}(.*?)\{\/unwrap\}/si',
|
|
$this->removeNLCallback(...),
|
|
$this->finalBody,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Strip line-breaks via callback
|
|
*
|
|
* @used-by unwrapSpecials()
|
|
*
|
|
* @param list<string> $matches
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function removeNLCallback($matches)
|
|
{
|
|
if (str_contains($matches[1], "\r") || str_contains($matches[1], "\n")) {
|
|
$matches[1] = str_replace(["\r\n", "\r", "\n"], '', $matches[1]);
|
|
}
|
|
|
|
return $matches[1];
|
|
}
|
|
|
|
/**
|
|
* Spool mail to the mail server
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function spoolEmail()
|
|
{
|
|
$this->unwrapSpecials();
|
|
$protocol = $this->getProtocol();
|
|
$upperFirstProtocol = ucfirst($protocol);
|
|
$method = 'sendWith' . $upperFirstProtocol;
|
|
|
|
try {
|
|
$success = $this->{$method}();
|
|
} catch (ErrorException $e) {
|
|
$success = false;
|
|
log_message('error', 'Email: ' . $method . ' throwed ' . $e);
|
|
}
|
|
|
|
if (! $success) {
|
|
$message = lang('Email.sendFailure' . ($protocol === 'mail' ? 'PHPMail' : $upperFirstProtocol));
|
|
|
|
log_message('error', 'Email: ' . $message);
|
|
log_message('error', $this->printDebuggerRaw());
|
|
|
|
$this->setErrorMessage($message);
|
|
|
|
return false;
|
|
}
|
|
|
|
$this->setErrorMessage(lang('Email.sent', [$protocol]));
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Validate email for shell
|
|
*
|
|
* Applies stricter, shell-safe validation to email addresses.
|
|
* Introduced to prevent RCE via sendmail's -f option.
|
|
*
|
|
* @see https://github.com/codeigniter4/CodeIgniter/issues/4963
|
|
* @see https://gist.github.com/Zenexer/40d02da5e07f151adeaeeaa11af9ab36
|
|
*
|
|
* @license https://creativecommons.org/publicdomain/zero/1.0/ CC0 1.0, Public Domain
|
|
*
|
|
* Credits for the base concept go to Paul Buonopane <paul@namepros.com>
|
|
*
|
|
* @param string $email
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function validateEmailForShell(&$email)
|
|
{
|
|
if (function_exists('idn_to_ascii') && $atpos = strpos($email, '@')) {
|
|
$email = static::substr($email, 0, ++$atpos)
|
|
. idn_to_ascii(static::substr($email, $atpos), 0, INTL_IDNA_VARIANT_UTS46);
|
|
}
|
|
|
|
return filter_var($email, FILTER_VALIDATE_EMAIL) === $email && preg_match('#\A[a-z0-9._+-]+@[a-z0-9.-]{1,253}\z#i', $email);
|
|
}
|
|
|
|
/**
|
|
* Send using mail()
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function sendWithMail()
|
|
{
|
|
$recipients = is_array($this->recipients) ? implode(', ', $this->recipients) : $this->recipients;
|
|
|
|
// _validate_email_for_shell() below accepts by reference,
|
|
// so this needs to be assigned to a variable
|
|
$from = $this->cleanEmail($this->headers['Return-Path']);
|
|
|
|
if (! $this->validateEmailForShell($from)) {
|
|
return mail($recipients, $this->subject, $this->finalBody, $this->headerStr);
|
|
}
|
|
|
|
// most documentation of sendmail using the "-f" flag lacks a space after it, however
|
|
// we've encountered servers that seem to require it to be in place.
|
|
return mail($recipients, $this->subject, $this->finalBody, $this->headerStr, '-f ' . $from);
|
|
}
|
|
|
|
/**
|
|
* Send using Sendmail
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function sendWithSendmail()
|
|
{
|
|
// _validate_email_for_shell() below accepts by reference,
|
|
// so this needs to be assigned to a variable
|
|
$from = $this->cleanEmail($this->headers['From']);
|
|
|
|
$from = $this->validateEmailForShell($from) ? '-f ' . $from : '';
|
|
|
|
if (! function_usable('popen') || false === ($fp = @popen($this->mailPath . ' -oi ' . $from . ' -t', 'w'))) {
|
|
return false;
|
|
}
|
|
|
|
fwrite($fp, $this->headerStr);
|
|
fwrite($fp, $this->finalBody);
|
|
$status = pclose($fp);
|
|
|
|
if ($status !== 0) {
|
|
$this->setErrorMessage(lang('Email.exitStatus', [$status]));
|
|
$this->setErrorMessage(lang('Email.noSocket'));
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send using SMTP
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function sendWithSmtp()
|
|
{
|
|
if ($this->SMTPHost === '') {
|
|
$this->setErrorMessage(lang('Email.noHostname'));
|
|
|
|
return false;
|
|
}
|
|
|
|
if (! $this->SMTPConnect() || ! $this->SMTPAuthenticate()) {
|
|
return false;
|
|
}
|
|
|
|
if (! $this->sendCommand('from', $this->cleanEmail($this->headers['From']))) {
|
|
$this->SMTPEnd();
|
|
|
|
return false;
|
|
}
|
|
|
|
foreach ($this->recipients as $val) {
|
|
if (! $this->sendCommand('to', $val)) {
|
|
$this->SMTPEnd();
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
foreach ($this->CCArray as $val) {
|
|
if ($val !== '' && ! $this->sendCommand('to', $val)) {
|
|
$this->SMTPEnd();
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
foreach ($this->BCCArray as $val) {
|
|
if ($val !== '' && ! $this->sendCommand('to', $val)) {
|
|
$this->SMTPEnd();
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (! $this->sendCommand('data')) {
|
|
$this->SMTPEnd();
|
|
|
|
return false;
|
|
}
|
|
|
|
// perform dot transformation on any lines that begin with a dot
|
|
$this->sendData($this->headerStr . preg_replace('/^\./m', '..$1', $this->finalBody));
|
|
$this->sendData($this->newline . '.');
|
|
$reply = $this->getSMTPData();
|
|
$this->setErrorMessage($reply);
|
|
$this->SMTPEnd();
|
|
|
|
if (! str_starts_with($reply, '250')) {
|
|
$this->setErrorMessage(lang('Email.SMTPError', [$reply]));
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Shortcut to send RSET or QUIT depending on keep-alive
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function SMTPEnd()
|
|
{
|
|
$this->sendCommand($this->SMTPKeepAlive ? 'reset' : 'quit');
|
|
}
|
|
|
|
/**
|
|
* @return bool|string
|
|
*/
|
|
protected function SMTPConnect()
|
|
{
|
|
if (is_resource($this->SMTPConnect)) {
|
|
return true;
|
|
}
|
|
|
|
$ssl = '';
|
|
|
|
// Connection to port 465 should use implicit TLS (without STARTTLS)
|
|
// as per RFC 8314.
|
|
if ($this->SMTPPort === 465) {
|
|
$ssl = 'tls://';
|
|
}
|
|
// But if $SMTPCrypto is set to `ssl`, SSL can be used.
|
|
if ($this->SMTPCrypto === 'ssl') {
|
|
$ssl = 'ssl://';
|
|
}
|
|
|
|
$this->SMTPConnect = fsockopen(
|
|
$ssl . $this->SMTPHost,
|
|
$this->SMTPPort,
|
|
$errno,
|
|
$errstr,
|
|
$this->SMTPTimeout,
|
|
);
|
|
|
|
if (! is_resource($this->SMTPConnect)) {
|
|
$this->setErrorMessage(lang('Email.SMTPError', [$errno . ' ' . $errstr]));
|
|
|
|
return false;
|
|
}
|
|
|
|
stream_set_timeout($this->SMTPConnect, $this->SMTPTimeout);
|
|
$this->setErrorMessage($this->getSMTPData());
|
|
|
|
if ($this->SMTPCrypto === 'tls') {
|
|
$this->sendCommand('hello');
|
|
$this->sendCommand('starttls');
|
|
$crypto = stream_socket_enable_crypto(
|
|
$this->SMTPConnect,
|
|
true,
|
|
STREAM_CRYPTO_METHOD_TLSv1_0_CLIENT
|
|
| STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT
|
|
| STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT
|
|
| STREAM_CRYPTO_METHOD_TLSv1_3_CLIENT,
|
|
);
|
|
|
|
if ($crypto !== true) {
|
|
$this->setErrorMessage(lang('Email.SMTPError', [$this->getSMTPData()]));
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return $this->sendCommand('hello');
|
|
}
|
|
|
|
/**
|
|
* @param string $cmd
|
|
* @param string $data
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function sendCommand($cmd, $data = '')
|
|
{
|
|
switch ($cmd) {
|
|
case 'hello':
|
|
if ($this->SMTPAuth || $this->getEncoding() === '8bit') {
|
|
$this->sendData('EHLO ' . $this->getHostname());
|
|
} else {
|
|
$this->sendData('HELO ' . $this->getHostname());
|
|
}
|
|
|
|
$resp = 250;
|
|
break;
|
|
|
|
case 'starttls':
|
|
$this->sendData('STARTTLS');
|
|
$resp = 220;
|
|
break;
|
|
|
|
case 'from':
|
|
$this->sendData('MAIL FROM:<' . $data . '>');
|
|
$resp = 250;
|
|
break;
|
|
|
|
case 'to':
|
|
if ($this->DSN) {
|
|
$this->sendData('RCPT TO:<' . $data . '> NOTIFY=SUCCESS,DELAY,FAILURE ORCPT=rfc822;' . $data);
|
|
} else {
|
|
$this->sendData('RCPT TO:<' . $data . '>');
|
|
}
|
|
$resp = 250;
|
|
break;
|
|
|
|
case 'data':
|
|
$this->sendData('DATA');
|
|
$resp = 354;
|
|
break;
|
|
|
|
case 'reset':
|
|
$this->sendData('RSET');
|
|
$resp = 250;
|
|
break;
|
|
|
|
case 'quit':
|
|
$this->sendData('QUIT');
|
|
$resp = 221;
|
|
break;
|
|
|
|
default:
|
|
$resp = null;
|
|
}
|
|
|
|
$reply = $this->getSMTPData();
|
|
|
|
$this->debugMessage[] = '<pre>' . $cmd . ': ' . $reply . '</pre>';
|
|
$this->debugMessageRaw[] = $cmd . ': ' . $reply;
|
|
|
|
if ($resp === null || ((int) static::substr($reply, 0, 3) !== $resp)) {
|
|
$this->setErrorMessage(lang('Email.SMTPError', [$reply]));
|
|
|
|
return false;
|
|
}
|
|
|
|
if ($cmd === 'quit') {
|
|
fclose($this->SMTPConnect);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
protected function SMTPAuthenticate()
|
|
{
|
|
if (! $this->SMTPAuth) {
|
|
return true;
|
|
}
|
|
|
|
if ($this->SMTPUser === '' && $this->SMTPPass === '') {
|
|
$this->setErrorMessage(lang('Email.noSMTPAuth'));
|
|
|
|
return false;
|
|
}
|
|
|
|
$this->sendData('AUTH LOGIN');
|
|
$reply = $this->getSMTPData();
|
|
|
|
if (str_starts_with($reply, '503')) { // Already authenticated
|
|
return true;
|
|
}
|
|
|
|
if (! str_starts_with($reply, '334')) {
|
|
$this->setErrorMessage(lang('Email.failedSMTPLogin', [$reply]));
|
|
|
|
return false;
|
|
}
|
|
|
|
$this->sendData(base64_encode($this->SMTPUser));
|
|
$reply = $this->getSMTPData();
|
|
|
|
if (! str_starts_with($reply, '334')) {
|
|
$this->setErrorMessage(lang('Email.SMTPAuthUsername', [$reply]));
|
|
|
|
return false;
|
|
}
|
|
|
|
$this->sendData(base64_encode($this->SMTPPass));
|
|
$reply = $this->getSMTPData();
|
|
|
|
if (! str_starts_with($reply, '235')) {
|
|
$this->setErrorMessage(lang('Email.SMTPAuthPassword', [$reply]));
|
|
|
|
return false;
|
|
}
|
|
|
|
if ($this->SMTPKeepAlive) {
|
|
$this->SMTPAuth = false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param string $data
|
|
*
|
|
* @return bool
|
|
*/
|
|
protected function sendData($data)
|
|
{
|
|
$data .= $this->newline;
|
|
|
|
$result = null;
|
|
|
|
for ($written = $timestamp = 0, $length = static::strlen($data); $written < $length; $written += $result) {
|
|
if (($result = fwrite($this->SMTPConnect, static::substr($data, $written))) === false) {
|
|
break;
|
|
}
|
|
|
|
// See https://bugs.php.net/bug.php?id=39598 and http://php.net/manual/en/function.fwrite.php#96951
|
|
if ($result === 0) {
|
|
if ($timestamp === 0) {
|
|
$timestamp = Time::now()->getTimestamp();
|
|
} elseif ($timestamp < (Time::now()->getTimestamp() - $this->SMTPTimeout)) {
|
|
$result = false;
|
|
|
|
break;
|
|
}
|
|
|
|
usleep(250000);
|
|
|
|
continue;
|
|
}
|
|
|
|
$timestamp = 0;
|
|
}
|
|
|
|
if (! is_int($result)) {
|
|
$this->setErrorMessage(lang('Email.SMTPDataFailure', [$data]));
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
protected function getSMTPData()
|
|
{
|
|
$data = '';
|
|
|
|
while ($str = fgets($this->SMTPConnect, 512)) {
|
|
$data .= $str;
|
|
|
|
if ($str[3] === ' ') {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* There are only two legal types of hostname - either a fully
|
|
* qualified domain name (eg: "mail.example.com") or an IP literal
|
|
* (eg: "[1.2.3.4]").
|
|
*
|
|
* @see https://tools.ietf.org/html/rfc5321#section-2.3.5
|
|
* @see http://cbl.abuseat.org/namingproblems.html
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function getHostname()
|
|
{
|
|
if (isset($_SERVER['SERVER_NAME'])) {
|
|
return $_SERVER['SERVER_NAME'];
|
|
}
|
|
|
|
if (isset($_SERVER['SERVER_ADDR'])) {
|
|
return '[' . $_SERVER['SERVER_ADDR'] . ']';
|
|
}
|
|
|
|
$hostname = gethostname();
|
|
if ($hostname !== false) {
|
|
return $hostname;
|
|
}
|
|
|
|
return '[127.0.0.1]';
|
|
}
|
|
|
|
/**
|
|
* @param array|string $include List of raw data chunks to include in the output
|
|
* Valid options are: 'headers', 'subject', 'body'
|
|
*
|
|
* @return string
|
|
*/
|
|
public function printDebugger($include = ['headers', 'subject', 'body'])
|
|
{
|
|
$msg = implode('', $this->debugMessage);
|
|
|
|
// Determine which parts of our raw data needs to be printed
|
|
$rawData = '';
|
|
|
|
if (! is_array($include)) {
|
|
$include = [$include];
|
|
}
|
|
|
|
if (in_array('headers', $include, true)) {
|
|
$rawData = htmlspecialchars($this->headerStr) . "\n";
|
|
}
|
|
if (in_array('subject', $include, true)) {
|
|
$rawData .= htmlspecialchars($this->subject) . "\n";
|
|
}
|
|
if (in_array('body', $include, true)) {
|
|
$rawData .= htmlspecialchars($this->finalBody);
|
|
}
|
|
|
|
return $msg . ($rawData === '' ? '' : '<pre>' . $rawData . '</pre>');
|
|
}
|
|
|
|
/**
|
|
* Returns raw debug messages
|
|
*/
|
|
private function printDebuggerRaw(): string
|
|
{
|
|
return implode("\n", $this->debugMessageRaw);
|
|
}
|
|
|
|
/**
|
|
* @param string $msg
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function setErrorMessage($msg)
|
|
{
|
|
$this->debugMessage[] = $msg . '<br>';
|
|
$this->debugMessageRaw[] = $msg;
|
|
}
|
|
|
|
/**
|
|
* Mime Types
|
|
*
|
|
* @param string $ext
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function mimeTypes($ext = '')
|
|
{
|
|
$mime = Mimes::guessTypeFromExtension(strtolower($ext));
|
|
|
|
return ! empty($mime) ? $mime : 'application/x-unknown-content-type';
|
|
}
|
|
|
|
public function __destruct()
|
|
{
|
|
if (is_resource($this->SMTPConnect)) {
|
|
try {
|
|
$this->sendCommand('quit');
|
|
} catch (ErrorException $e) {
|
|
$protocol = $this->getProtocol();
|
|
$method = 'sendWith' . ucfirst($protocol);
|
|
log_message('error', 'Email: ' . $method . ' throwed ' . $e);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Byte-safe strlen()
|
|
*
|
|
* @param string $str
|
|
*
|
|
* @return int
|
|
*/
|
|
protected static function strlen($str)
|
|
{
|
|
return (static::$func_overload) ? mb_strlen($str, '8bit') : strlen($str);
|
|
}
|
|
|
|
/**
|
|
* Byte-safe substr()
|
|
*
|
|
* @param string $str
|
|
* @param int $start
|
|
* @param int|null $length
|
|
*
|
|
* @return string
|
|
*/
|
|
protected static function substr($str, $start, $length = null)
|
|
{
|
|
if (static::$func_overload) {
|
|
return mb_substr($str, $start, $length, '8bit');
|
|
}
|
|
|
|
return isset($length) ? substr($str, $start, $length) : substr($str, $start);
|
|
}
|
|
|
|
/**
|
|
* Determines the values that should be stored in $archive.
|
|
*
|
|
* @return array The updated archive values
|
|
*/
|
|
protected function setArchiveValues(): array
|
|
{
|
|
// Get property values and add anything prepped in tmpArchive
|
|
$this->archive = array_merge(get_object_vars($this), $this->tmpArchive);
|
|
unset($this->archive['archive']);
|
|
|
|
// Clear tmpArchive for next run
|
|
$this->tmpArchive = [];
|
|
|
|
return $this->archive;
|
|
}
|
|
}
|