STBlog/system/libraries/Email.php at master · ljcode/STBlog · GitHub

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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

/**

* CodeIgniter

* An open source application development framework for PHP 5.1.6 or newer

* @package CodeIgniter

* @author ExpressionEngine Dev Team

* @license http://codeigniter.com/user_guide/license.html

* @link http://codeigniter.com

* @since Version 1.0

* @filesource

// ------------------------------------------------------------------------

/**

* CodeIgniter Email Class

* Permits email to be sent using Mail, Sendmail, or SMTP.

* @package CodeIgniter

* @subpackage Libraries

* @category Libraries

* @author ExpressionEngine Dev Team

* @link http://codeigniter.com/user_guide/libraries/email.html

class CI_Email {

var $useragent = "CodeIgniter";

var $mailpath = "/usr/sbin/sendmail"; // Sendmail path

var $protocol = "mail"; // mail/sendmail/smtp

var $smtp_host = ""; // SMTP Server. Example: mail.earthlink.net

var $smtp_user = ""; // SMTP Username

var $smtp_pass = ""; // SMTP Password

var $smtp_port = "25"; // SMTP Port

var $smtp_timeout = 5; // SMTP Timeout in seconds

var $smtp_crypto = ""; // SMTP Encryption. Can be null, tls or ssl.

var $wordwrap = TRUE; // TRUE/FALSE Turns word-wrap on/off

var $wrapchars = "76"; // Number of characters to wrap at.

var $mailtype = "text"; // text/html Defines email formatting

var $charset = "utf-8"; // Default char set: iso-8859-1 or us-ascii

var $multipart = "mixed"; // "mixed" (in the body) or "related" (separate)

var $alt_message = ''; // Alternative message for HTML emails

var $validate = FALSE; // TRUE/FALSE. Enables email validation

var $priority = "3"; // Default priority (1 - 5)

var $newline = "\n"; // Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822)

var $crlf = "\n"; // The RFC 2045 compliant CRLF for quoted-printable is "\r\n". Apparently some servers,

// even on the receiving end think they need to muck with CRLFs, so using "\n", while

// distasteful, is the only thing that seems to work for all environments.

var $send_multipart = TRUE; // TRUE/FALSE - Yahoo does not like multipart alternative, so this is an override. Set to FALSE for Yahoo.

var $bcc_batch_mode = FALSE; // TRUE/FALSE Turns on/off Bcc batch feature

var $bcc_batch_size = 200; // If bcc_batch_mode = TRUE, sets max number of Bccs in each batch

var $_safe_mode = FALSE;

var $_subject = "";

var $_body = "";

var $_finalbody = "";

var $_alt_boundary = "";

var $_atc_boundary = "";

var $_header_str = "";

var $_smtp_connect = "";

var $_encoding = "8bit";

var $_IP = FALSE;

var $_smtp_auth = FALSE;

var $_replyto_flag = FALSE;

var $_debug_msg = array();

var $_recipients = array();

var $_cc_array = array();

var $_bcc_array = array();

var $_headers = array();

var $_attach_name = array();

var $_attach_type = array();

var $_attach_disp = array();

var $_protocols = array('mail', 'sendmail', 'smtp');

var $_base_charsets = array('us-ascii', 'iso-2022-'); // 7-bit charsets (excluding language suffix)

var $_bit_depths = array('7bit', '8bit');

var $_priorities = array('1 (Highest)', '2 (High)', '3 (Normal)', '4 (Low)', '5 (Lowest)');

/**

* Constructor - Sets Email Preferences

* The constructor can be passed an array of config values

public function __construct($config = array())

{

if (count($config) > 0)

{

$this->initialize($config);

}

else

{

$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;

$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;

}

log_message('debug', "Email Class Initialized");

}

// --------------------------------------------------------------------

/**

* Initialize preferences

* @access public

* @param array

* @return void

public function initialize($config = array())

{

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->clear();

$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;

$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;

return $this;

}

// --------------------------------------------------------------------

/**

* Initialize the Email Data

* @access public

* @return void

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('User-Agent', $this->useragent);

$this->_set_header('Date', $this->_set_date());

if ($clear_attachments !== FALSE)

{

$this->_attach_name = array();

$this->_attach_type = array();

$this->_attach_disp = array();

}

return $this;

}

// --------------------------------------------------------------------

/**

* Set FROM

* @access public

* @param string

* @return void

public function from($from, $name = '')

{

if (preg_match( '/\<(.*)\>/', $from, $match))

{

$from = $match['1'];

}

if ($this->validate)

{

$this->validate_email($this->_str_to_array($from));

}

// 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, TRUE);

}

$this->_set_header('From', $name.' <'.$from.'>');

$this->_set_header('Return-Path', '<'.$from.'>');

return $this;

}

// --------------------------------------------------------------------

/**

* Set Reply-to

* @access public

* @param string

* @return void

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 == '')

{

$name = $replyto;

}

if (strncmp($name, '"', 1) != 0)

{

$name = '"'.$name.'"';

}

$this->_set_header('Reply-To', $name.' <'.$replyto.'>');

$this->_replyto_flag = TRUE;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Recipients

* @access public

* @param string

* @return void

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));

}

switch ($this->_get_protocol())

{

case 'smtp' :

$this->_recipients = $to;

break;

case 'sendmail' :

case 'mail' :

$this->_recipients = implode(", ", $to);

break;

}

return $this;

}

// --------------------------------------------------------------------

/**

* Set CC

* @access public

* @param string

* @return void

public function cc($cc)

{

$cc = $this->_str_to_array($cc);

$cc = $this->clean_email($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

* @access public

* @param string

* @return void

public function bcc($bcc, $limit = '')

{

if ($limit != '' && is_numeric($limit))

{

$this->bcc_batch_mode = TRUE;

$this->bcc_batch_size = $limit;

}

$bcc = $this->_str_to_array($bcc);

$bcc = $this->clean_email($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

* @access public

* @param string

* @return void

public function subject($subject)

{

$subject = $this->_prep_q_encoding($subject);

$this->_set_header('Subject', $subject);

return $this;

}

// --------------------------------------------------------------------

/**

* Set Body

* @access public

* @param string

* @return void

public function message($body)

{

$this->_body = rtrim(str_replace("\r", "", $body));

/* strip slashes only if magic quotes is ON

if we do it with magic quotes OFF, it strips real, user-inputted chars.

NOTE: In PHP 5.4 get_magic_quotes_gpc() will always return 0 and

it will probably not exist in future versions at all.

if ( ! is_php('5.4') && get_magic_quotes_gpc())

{

$this->_body = stripslashes($this->_body);

}

return $this;

}

// --------------------------------------------------------------------

/**

* Assign file attachments

* @access public

* @param string

* @return void

public function attach($filename, $disposition = 'attachment')

{

$this->_attach_name[] = $filename;

$this->_attach_type[] = $this->_mime_types(pathinfo($filename, PATHINFO_EXTENSION));

$this->_attach_disp[] = $disposition; // Can also be 'inline' Not sure if it matters

return $this;

}

// --------------------------------------------------------------------

/**

* Add a Header Item

* @access protected

* @param string

* @return void

protected function _set_header($header, $value)

{

$this->_headers[$header] = $value;

}

// --------------------------------------------------------------------

/**

* Convert a String to an Array

* @access protected

* @param string

* @return array

protected function _str_to_array($email)

{

if ( ! is_array($email))

{

if (strpos($email, ',') !== FALSE)

{

$email = preg_split('/[\s,]/', $email, -1, PREG_SPLIT_NO_EMPTY);

}

else

{

$email = trim($email);

settype($email, "array");

}

return $email;

}

// --------------------------------------------------------------------

/**

* Set Multipart Value

* @access public

* @param string

* @return void

public function set_alt_message($str = '')

{

$this->alt_message = $str;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Mailtype

* @access public

* @param string

* @return void

public function set_mailtype($type = 'text')

{

$this->mailtype = ($type == 'html') ? 'html' : 'text';

return $this;

}

// --------------------------------------------------------------------

/**

* Set Wordwrap

* @access public

* @param string

* @return void

public function set_wordwrap($wordwrap = TRUE)

{

$this->wordwrap = ($wordwrap === FALSE) ? FALSE : TRUE;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Protocol

* @access public

* @param string

* @return void

public function set_protocol($protocol = 'mail')

{

$this->protocol = ( ! in_array($protocol, $this->_protocols, TRUE)) ? 'mail' : strtolower($protocol);

return $this;

}

// --------------------------------------------------------------------

/**

* Set Priority

* @access public

* @param integer

* @return void

public function set_priority($n = 3)

{

if ( ! is_numeric($n))

{

$this->priority = 3;

return;

}

if ($n < 1 OR $n > 5)

{

$this->priority = 3;

return;

}

$this->priority = $n;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Newline Character

* @access public

* @param string

* @return void

public function set_newline($newline = "\n")

{

if ($newline != "\n" AND $newline != "\r\n" AND $newline != "\r")

{

$this->newline = "\n";

return;

}

$this->newline = $newline;

return $this;

}

// --------------------------------------------------------------------

/**

* Set CRLF

* @access public

* @param string

* @return void

public function set_crlf($crlf = "\n")

{

if ($crlf != "\n" AND $crlf != "\r\n" AND $crlf != "\r")

{

$this->crlf = "\n";

return;

}

$this->crlf = $crlf;

return $this;

}

// --------------------------------------------------------------------

/**

* Set Message Boundary

* @access protected

* @return void

protected function _set_boundaries()

{

$this->_alt_boundary = "B_ALT_".uniqid(''); // multipart/alternative

$this->_atc_boundary = "B_ATC_".uniqid(''); // attachment boundary

}

// --------------------------------------------------------------------

/**

* Get the Message ID

* @access protected

* @return string

protected function _get_message_id()

{

$from = $this->_headers['Return-Path'];

$from = str_replace(">", "", $from);

$from = str_replace("<", "", $from);

return "<".uniqid('').strstr($from, '@').">";

}

// --------------------------------------------------------------------

/**

* Get Mail Protocol

* @access protected

* @param bool

* @return string

protected function _get_protocol($return = TRUE)

{

$this->protocol = strtolower($this->protocol);

$this->protocol = ( ! in_array($this->protocol, $this->_protocols, TRUE)) ? 'mail' : $this->protocol;

if ($return == TRUE)

{

return $this->protocol;

}

// --------------------------------------------------------------------

/**

* Get Mail Encoding

* @access protected

* @param bool

* @return string

protected function _get_encoding($return = TRUE)

{

$this->_encoding = ( ! in_array($this->_encoding, $this->_bit_depths)) ? '8bit' : $this->_encoding;

foreach ($this->_base_charsets as $charset)

{

if (strncmp($charset, $this->charset, strlen($charset)) == 0)

{

$this->_encoding = '7bit';

}

if ($return == TRUE)

{

return $this->_encoding;

}

// --------------------------------------------------------------------

/**

* Get content type (text/html/attachment)

* @access protected

* @return string

protected function _get_content_type()

{

if ($this->mailtype == 'html' && count($this->_attach_name) == 0)

{

return 'html';

}

elseif ($this->mailtype == 'html' && count($this->_attach_name) > 0)

{

return 'html-attach';

}

elseif ($this->mailtype == 'text' && count($this->_attach_name) > 0)

{

return 'plain-attach';

}

else

{

return 'plain';

}

// --------------------------------------------------------------------

/**

* Set RFC 822 Date

* @access protected

* @return string

protected function _set_date()

{

$timezone = date("Z");

$operator = (strncmp($timezone, '-', 1) == 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

* @access protected

* @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

* @access public

* @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;

}

return TRUE;

}

// --------------------------------------------------------------------

/**

* Email Validation

* @access public

* @param string

* @return bool

public function valid_email($address)

{

return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $address)) ? FALSE : TRUE;

}

// --------------------------------------------------------------------

/**

* Clean Extended Email Address: Joe Smith <joe@smith.com>

* @access public

* @param string

* @return string

public function clean_email($email)

{

if ( ! is_array($email))

{

if (preg_match('/\<(.*)\>/', $email, $match))

{

return $match['1'];

}

else

{

return $email;

}

$clean_email = array();

foreach ($email as $addy)

{

if (preg_match( '/\<(.*)\>/', $addy, $match))

{

$clean_email[] = $match['1'];

}

else

{

$clean_email[] = $addy;

}

return $clean_email;

}

// --------------------------------------------------------------------

/**

* Build alternative plain text message

* This public function 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

* @access protected

* @return string

protected function _get_alt_message()

{

if ($this->alt_message != "")

{

return $this->word_wrap($this->alt_message, '76');

}

if (preg_match('/\<body.*?\>(.*)\<\/body\>/si', $this->_body, $match))

{

$body = $match['1'];

}

else

{

$body = $this->_body;

}

$body = trim(strip_tags($body));

$body = preg_replace( '#<!--(.*)--\>#', "", $body);

$body = str_replace("\t", "", $body);

for ($i = 20; $i >= 3; $i--)

{

$n = "";

for ($x = 1; $x <= $i; $x ++)

{

$n .= "\n";

}

$body = str_replace($n, "\n\n", $body);

}

return $this->word_wrap($body, '76');

}

// --------------------------------------------------------------------

/**

* Word Wrap

* @access public

* @param string

* @param integer

* @return string

public function word_wrap($str, $charlim = '')

{

// Se the character limit

if ($charlim == '')

{

$charlim = ($this->wrapchars == "") ? "76" : $this->wrapchars;

}

// Reduce multiple spaces

$str = preg_replace("| +|", " ", $str);

// Standardize newlines

if (strpos($str, "\r") !== FALSE)

{

$str = str_replace(array("\r\n", "\r"), "\n", $str);

}

// If the current word is surrounded by {unwrap} tags we'll

// strip the entire chunk and replace it with a marker.

$unwrap = array();

if (preg_match_all("|(\{unwrap\}.+?\{/unwrap\})|s", $str, $matches))

{

for ($i = 0; $i < count($matches['0']); $i++)

{

$unwrap[] = $matches['1'][$i];

$str = str_replace($matches['1'][$i], "{{unwrapped".$i."}}", $str);

}

// Use PHP's native public 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)

{

// Is the line within the allowed character count?

// If so we'll join it to the output and continue

if (strlen($line) <= $charlim)

{

$output .= $line.$this->newline;

continue;

}

$temp = '';

while ((strlen($line)) > $charlim)

{

// If the over-length word is a URL we won't wrap it

if (preg_match("!\[url.+\]|://|wwww.!", $line))

{

break;

}

// Trim the word down

$temp .= substr($line, 0, $charlim-1);

$line = substr($line, $charlim-1);

}

// If $temp contains data it means we had to split up an over-length

// word into smaller chunks so we'll add it back to our current line

if ($temp != '')

{

$output .= $temp.$this->newline.$line;

}

else

{

$output .= $line;

}

$output .= $this->newline;

}

// Put our markers back

if (count($unwrap) > 0)

{

foreach ($unwrap as $key => $val)

{

$output = str_replace("{{unwrapped".$key."}}", $val, $output);

}

return $output;

}

// --------------------------------------------------------------------

/**

* Build final headers

* @access protected

* @param string

* @return string

protected function _build_headers()

{

$this->_set_header('X-Sender', $this->clean_email($this->_headers['From']));

$this->_set_header('X-Mailer', $this->useragent);

$this->_set_header('X-Priority', $this->_priorities[$this->priority - 1]);

$this->_set_header('Message-ID', $this->_get_message_id());

$this->_set_header('Mime-Version', '1.0');

}

// --------------------------------------------------------------------

/**

* Write Headers as a string

* @access protected

* @return void

protected function _write_headers()

{

if ($this->protocol == 'mail')

{

$this->_subject = $this->_headers['Subject'];

unset($this->_headers['Subject']);

}

reset($this->_headers);

$this->_header_str = "";

foreach ($this->_headers as $key => $val)

{

$val = trim($val);

if ($val != "")

{

$this->_header_str .= $key.": ".$val.$this->newline;

}

if ($this->_get_protocol() == 'mail')

{

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STBlog/system/libraries/Email.php at master · ljcode/STBlog · GitHub

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