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Copy pathEmail.php
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2418 lines (2048 loc) · 53.7 KB
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<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP
*
* This content is released under the MIT License (MIT)
*
* Copyright (c) 2019 - 2022, CodeIgniter Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
* @license https://opensource.org/licenses/MIT MIT License
* @link https://codeigniter.com
* @since Version 1.0.0
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');
/**
* CodeIgniter Email Class
*
* Permits email to be sent using Mail, Sendmail, or SMTP.
*
* @package CodeIgniter
* @subpackage Libraries
* @category Libraries
* @author EllisLab Dev Team
* @link https://codeigniter.com/userguide3/libraries/email.html
*/
class CI_Email {
/**
* Used as the User-Agent and X-Mailer headers' value.
*
* @var string
*/
public $useragent = 'CodeIgniter';
/**
* Path to the Sendmail binary.
*
* @var string
*/
public $mailpath = '/usr/sbin/sendmail'; // Sendmail path
/**
* Which method to use for sending e-mails.
*
* @var string 'mail', 'sendmail' or 'smtp'
*/
public $protocol = 'mail'; // mail/sendmail/smtp
/**
* STMP Server host
*
* @var string
*/
public $smtp_host = '';
/**
* SMTP Username
*
* @var string
*/
public $smtp_user = '';
/**
* SMTP Password
*
* @var string
*/
public $smtp_pass = '';
/**
* SMTP Server port
*
* @var int
*/
public $smtp_port = 25;
/**
* SMTP connection timeout in seconds
*
* @var int
*/
public $smtp_timeout = 5;
/**
* SMTP persistent connection
*
* @var bool
*/
public $smtp_keepalive = FALSE;
/**
* SMTP Encryption
*
* @var string empty, 'tls' or 'ssl'
*/
public $smtp_crypto = '';
/**
* Whether to apply word-wrapping to the message body.
*
* @var bool
*/
public $wordwrap = TRUE;
/**
* Number of characters to wrap at.
*
* @see CI_Email::$wordwrap
* @var int
*/
public $wrapchars = 76;
/**
* Message format.
*
* @var string 'text' or 'html'
*/
public $mailtype = 'text';
/**
* Character set (default: utf-8)
*
* @var string
*/
public $charset = 'utf-8';
/**
* Alternative message (for HTML messages only)
*
* @var string
*/
public $alt_message = '';
/**
* Whether to validate e-mail addresses.
*
* @var bool
*/
public $validate = TRUE;
/**
* X-Priority header value.
*
* @var int 1-5
*/
public $priority = 3; // Default priority (1 - 5)
/**
* Newline character sequence.
* Use "\r\n" to comply with RFC 822.
*
* @link https://www.ietf.org/rfc/rfc822.txt
* @var string "\r\n" or "\n"
*/
public $newline = "\n"; // Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822)
/**
* CRLF character sequence
*
* RFC 2045 specifies that for 'quoted-printable' encoding,
* "\r\n" must be used. However, it appears that some servers
* (even on the receiving end) don't handle it properly and
* switching to "\n", while improper, is the only solution
* that seems to work for all environments.
*
* @link https://www.ietf.org/rfc/rfc822.txt
* @var string
*/
public $crlf = "\n";
/**
* Whether to use Delivery Status Notification.
*
* @var bool
*/
public $dsn = FALSE;
/**
* Whether to send multipart alternatives.
* Yahoo! doesn't seem to like these.
*
* @var bool
*/
public $send_multipart = TRUE;
/**
* Whether to send messages to BCC recipients in batches.
*
* @var bool
*/
public $bcc_batch_mode = FALSE;
/**
* BCC Batch max number size.
*
* @see CI_Email::$bcc_batch_mode
* @var int
*/
public $bcc_batch_size = 200;
// --------------------------------------------------------------------
/**
* Subject header
*
* @var string
*/
protected $_subject = '';
/**
* Message body
*
* @var string
*/
protected $_body = '';
/**
* Final message body to be sent.
*
* @var string
*/
protected $_finalbody = '';
/**
* Final headers to send
*
* @var string
*/
protected $_header_str = '';
/**
* SMTP Connection socket placeholder
*
* @var resource
*/
protected $_smtp_connect = '';
/**
* Mail encoding
*
* @var string '8bit' or '7bit'
*/
protected $_encoding = '8bit';
/**
* Whether to perform SMTP authentication
*
* @var bool
*/
protected $_smtp_auth = FALSE;
/**
* Whether to send a Reply-To header
*
* @var bool
*/
protected $_replyto_flag = FALSE;
/**
* Debug messages
*
* @see CI_Email::print_debugger()
* @var string
*/
protected $_debug_msg = array();
/**
* Recipients
*
* @var string[]
*/
protected $_recipients = array();
/**
* CC Recipients
*
* @var string[]
*/
protected $_cc_array = array();
/**
* BCC Recipients
*
* @var string[]
*/
protected $_bcc_array = array();
/**
* Message headers
*
* @var string[]
*/
protected $_headers = array();
/**
* Attachment data
*
* @var array
*/
protected $_attachments = array();
/**
* Valid $protocol values
*
* @see CI_Email::$protocol
* @var string[]
*/
protected $_protocols = array('mail', 'sendmail', 'smtp');
/**
* Base charsets
*
* Character sets valid for 7-bit encoding,
* excluding language suffix.
*
* @var string[]
*/
protected $_base_charsets = array('us-ascii', 'iso-2022-');
/**
* Bit depths
*
* Valid mail encodings
*
* @see CI_Email::$_encoding
* @var string[]
*/
protected $_bit_depths = array('7bit', '8bit');
/**
* $priority translations
*
* Actual values to send with the X-Priority header
*
* @var string[]
*/
protected $_priorities = array(
1 => '1 (Highest)',
2 => '2 (High)',
3 => '3 (Normal)',
4 => '4 (Low)',
5 => '5 (Lowest)'
);
/**
* mbstring.func_overload flag
*
* @var bool
*/
protected static $func_overload;
// --------------------------------------------------------------------
/**
* Constructor - Sets Email Preferences
*
* The constructor can be passed an array of config values
*
* @param array $config = array()
* @return void
*/
public function __construct(array $config = array())
{
$this->charset = config_item('charset');
$this->initialize($config);
isset(self::$func_overload) OR self::$func_overload = ( ! is_php('8.0') && extension_loaded('mbstring') && @ini_get('mbstring.func_overload'));
log_message('info', 'Email Class Initialized');
}
// --------------------------------------------------------------------
/**
* Initialize preferences
*
* @param array $config
* @return CI_Email
*/
public function initialize(array $config = array())
{
$this->clear();
foreach ($config as $key => $val)
{
if (isset($this->$key))
{
$method = 'set_'.$key;
if (method_exists($this, $method))
{
$this->$method($val);
}
else
{
$this->$key = $val;
}
}
}
$this->charset = strtoupper($this->charset);
$this->_smtp_auth = isset($this->smtp_user[0], $this->smtp_pass[0]);
return $this;
}
// --------------------------------------------------------------------
/**
* Initialize the Email Data
*
* @param bool
* @return CI_Email
*/
public function clear($clear_attachments = FALSE)
{
$this->_subject = '';
$this->_body = '';
$this->_finalbody = '';
$this->_header_str = '';
$this->_replyto_flag = FALSE;
$this->_recipients = array();
$this->_cc_array = array();
$this->_bcc_array = array();
$this->_headers = array();
$this->_debug_msg = array();
$this->set_header('Date', $this->_set_date());
if ($clear_attachments !== FALSE)
{
$this->_attachments = array();
}
return $this;
}
// --------------------------------------------------------------------
/**
* Set FROM
*
* @param string $from
* @param string $name
* @param string $return_path = NULL Return-Path
* @return CI_Email
*/
public function from($from, $name = '', $return_path = NULL)
{
if (preg_match('/\<(.*)\>/', $from, $match))
{
$from = $match[1];
}
if ($this->validate)
{
$this->validate_email($this->_str_to_array($from));
if ($return_path)
{
$this->validate_email($this->_str_to_array($return_path));
}
}
// prepare the display name
if ($name !== '')
{
// only use Q encoding if there are characters that would require it
if ( ! preg_match('/[\200-\377]/', $name))
{
// add slashes for non-printing characters, slashes, and double quotes, and surround it in double quotes
$name = '"'.addcslashes($name, "\0..\37\177'\"\\").'"';
}
else
{
$name = $this->_prep_q_encoding($name);
}
}
$this->set_header('From', $name.' <'.$from.'>');
isset($return_path) OR $return_path = $from;
$this->set_header('Return-Path', '<'.$return_path.'>');
return $this;
}
// --------------------------------------------------------------------
/**
* Set Reply-to
*
* @param string
* @param string
* @return CI_Email
*/
public function reply_to($replyto, $name = '')
{
if (preg_match('/\<(.*)\>/', $replyto, $match))
{
$replyto = $match[1];
}
if ($this->validate)
{
$this->validate_email($this->_str_to_array($replyto));
}
if ($name !== '')
{
// only use Q encoding if there are characters that would require it
if ( ! preg_match('/[\200-\377]/', $name))
{
// add slashes for non-printing characters, slashes, and double quotes, and surround it in double quotes
$name = '"'.addcslashes($name, "\0..\37\177'\"\\").'"';
}
else
{
$name = $this->_prep_q_encoding($name);
}
}
$this->set_header('Reply-To', $name.' <'.$replyto.'>');
$this->_replyto_flag = TRUE;
return $this;
}
// --------------------------------------------------------------------
/**
* Set Recipients
*
* @param string
* @return CI_Email
*/
public function to($to)
{
$to = $this->_str_to_array($to);
$to = $this->clean_email($to);
if ($this->validate)
{
$this->validate_email($to);
}
if ($this->_get_protocol() !== 'mail')
{
$this->set_header('To', implode(', ', $to));
}
$this->_recipients = $to;
return $this;
}
// --------------------------------------------------------------------
/**
* Set CC
*
* @param string
* @return CI_Email
*/
public function cc($cc)
{
$cc = $this->clean_email($this->_str_to_array($cc));
if ($this->validate)
{
$this->validate_email($cc);
}
$this->set_header('Cc', implode(', ', $cc));
if ($this->_get_protocol() === 'smtp')
{
$this->_cc_array = $cc;
}
return $this;
}
// --------------------------------------------------------------------
/**
* Set BCC
*
* @param string
* @param string
* @return CI_Email
*/
public function bcc($bcc, $limit = '')
{
if ($limit !== '' && is_numeric($limit))
{
$this->bcc_batch_mode = TRUE;
$this->bcc_batch_size = $limit;
}
$bcc = $this->clean_email($this->_str_to_array($bcc));
if ($this->validate)
{
$this->validate_email($bcc);
}
if ($this->_get_protocol() === 'smtp' OR ($this->bcc_batch_mode && count($bcc) > $this->bcc_batch_size))
{
$this->_bcc_array = $bcc;
}
else
{
$this->set_header('Bcc', implode(', ', $bcc));
}
return $this;
}
// --------------------------------------------------------------------
/**
* Set Email Subject
*
* @param string
* @return CI_Email
*/
public function subject($subject)
{
$subject = $this->_prep_q_encoding($subject);
$this->set_header('Subject', $subject);
return $this;
}
// --------------------------------------------------------------------
/**
* Set Body
*
* @param string
* @return CI_Email
*/
public function message($body)
{
$this->_body = rtrim(str_replace("\r", '', $body));
return $this;
}
// --------------------------------------------------------------------
/**
* Assign file attachments
*
* @param string $file Can be local path, URL or buffered content
* @param string $disposition = 'attachment'
* @param string $newname = NULL
* @param string $mime = ''
* @return CI_Email
*/
public function attach($file, $disposition = '', $newname = NULL, $mime = '')
{
if ($mime === '')
{
if (strpos($file, '://') === FALSE && ! file_exists($file))
{
$this->_set_error_message('lang:email_attachment_missing', $file);
return FALSE;
}
if ( ! $fp = @fopen($file, 'rb'))
{
$this->_set_error_message('lang:email_attachment_unreadable', $file);
return FALSE;
}
$file_content = stream_get_contents($fp);
$mime = $this->_mime_types(pathinfo($file, PATHINFO_EXTENSION));
fclose($fp);
}
else
{
$file_content =& $file; // buffered file
}
$this->_attachments[] = array(
'name' => array($file, $newname),
'disposition' => empty($disposition) ? 'attachment' : $disposition, // Can also be 'inline' Not sure if it matters
'type' => $mime,
'content' => chunk_split(base64_encode($file_content)),
'multipart' => 'mixed'
);
return $this;
}
// --------------------------------------------------------------------
/**
* Set and return attachment Content-ID
*
* Useful for attached inline pictures
*
* @param string $filename
* @return string
*/
public function attachment_cid($filename)
{
for ($i = 0, $c = count($this->_attachments); $i < $c; $i++)
{
if ($this->_attachments[$i]['name'][0] === $filename)
{
$this->_attachments[$i]['multipart'] = 'related';
$this->_attachments[$i]['cid'] = uniqid(basename($this->_attachments[$i]['name'][0]).'@');
return $this->_attachments[$i]['cid'];
}
}
return FALSE;
}
// --------------------------------------------------------------------
/**
* Add a Header Item
*
* @param string
* @param string
* @return CI_Email
*/
public function set_header($header, $value)
{
$this->_headers[$header] = str_replace(array("\n", "\r"), '', $value);
return $this;
}
// --------------------------------------------------------------------
/**
* Convert a String to an Array
*
* @param string
* @return array
*/
protected function _str_to_array($email)
{
if ( ! is_array($email))
{
return (strpos($email, ',') !== FALSE)
? preg_split('/[\s,]/', $email, -1, PREG_SPLIT_NO_EMPTY)
: (array) trim($email);
}
return $email;
}
// --------------------------------------------------------------------
/**
* Set Multipart Value
*
* @param string
* @return CI_Email
*/
public function set_alt_message($str)
{
$this->alt_message = (string) $str;
return $this;
}
// --------------------------------------------------------------------
/**
* Set Mailtype
*
* @param string
* @return CI_Email
*/
public function set_mailtype($type = 'text')
{
$this->mailtype = ($type === 'html') ? 'html' : 'text';
return $this;
}
// --------------------------------------------------------------------
/**
* Set Wordwrap
*
* @param bool
* @return CI_Email
*/
public function set_wordwrap($wordwrap = TRUE)
{
$this->wordwrap = (bool) $wordwrap;
return $this;
}
// --------------------------------------------------------------------
/**
* Set Protocol
*
* @param string
* @return CI_Email
*/
public function set_protocol($protocol = 'mail')
{
$this->protocol = in_array($protocol, $this->_protocols, TRUE) ? strtolower($protocol) : 'mail';
return $this;
}
// --------------------------------------------------------------------
/**
* Set Priority
*
* @param int
* @return CI_Email
*/
public function set_priority($n = 3)
{
$this->priority = preg_match('/^[1-5]$/', $n) ? (int) $n : 3;
return $this;
}
// --------------------------------------------------------------------
/**
* Set Newline Character
*
* @param string
* @return CI_Email
*/
public function set_newline($newline = "\n")
{
$this->newline = in_array($newline, array("\n", "\r\n", "\r")) ? $newline : "\n";
return $this;
}
// --------------------------------------------------------------------
/**
* Set CRLF
*
* @param string
* @return CI_Email
*/
public function set_crlf($crlf = "\n")
{
$this->crlf = ($crlf !== "\n" && $crlf !== "\r\n" && $crlf !== "\r") ? "\n" : $crlf;
return $this;
}
// --------------------------------------------------------------------
/**
* Get the Message ID
*
* @return string
*/
protected function _get_message_id()
{
$from = str_replace(array('>', '<'), '', $this->_headers['Return-Path']);
return '<'.uniqid('').strstr($from, '@').'>';
}
// --------------------------------------------------------------------
/**
* Get Mail Protocol
*
* @return mixed
*/
protected function _get_protocol()
{
$this->protocol = strtolower($this->protocol);
in_array($this->protocol, $this->_protocols, TRUE) OR $this->protocol = 'mail';
return $this->protocol;
}
// --------------------------------------------------------------------
/**
* Get Mail Encoding
*
* @return string
*/
protected function _get_encoding()
{
in_array($this->_encoding, $this->_bit_depths) OR $this->_encoding = '8bit';
foreach ($this->_base_charsets as $charset)
{
if (strpos($this->charset, $charset) === 0)
{
$this->_encoding = '7bit';
}
}
return $this->_encoding;
}
// --------------------------------------------------------------------
/**
* Get content type (text/html/attachment)
*
* @return string
*/
protected function _get_content_type()
{
if ($this->mailtype === 'html')
{
return empty($this->_attachments) ? 'html' : 'html-attach';
}
elseif ($this->mailtype === 'text' && ! empty($this->_attachments))
{
return 'plain-attach';
}
return 'plain';
}
// --------------------------------------------------------------------
/**
* Set RFC 822 Date
*
* @return string
*/
protected function _set_date()
{
$timezone = date('Z');
$operator = ($timezone[0] === '-') ? '-' : '+';
$timezone = abs($timezone);
$timezone = floor($timezone/3600) * 100 + ($timezone % 3600) / 60;
return sprintf('%s %s%04d', date('D, j M Y H:i:s'), $operator, $timezone);
}
// --------------------------------------------------------------------
/**
* Mime message
*
* @return string
*/
protected function _get_mime_message()
{
return 'This is a multi-part message in MIME format.'.$this->newline.'Your email application may not support this format.';
}
// --------------------------------------------------------------------
/**
* Validate Email Address
*
* @param string
* @return bool
*/
public function validate_email($email)
{
if ( ! is_array($email))
{
$this->_set_error_message('lang:email_must_be_array');
return FALSE;
}
foreach ($email as $val)
{
if ( ! $this->valid_email($val))
{
$this->_set_error_message('lang:email_invalid_address', $val);
return FALSE;
}
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