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'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);
$this->_safe_mode = ( ! is_php('5.4') && ini_get('safe_mode'));
isset(self::$func_overload) OR self::$func_overload = (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));
/* 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
*
* @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', $val);
return FALSE;
}
}
return TRUE;
}
// --------------------------------------------------------------------
/**
* Email Validation
*
* @param string
* @return bool
*/
public function valid_email($email)
{
if (function_exists('idn_to_ascii') && strpos($email, '@'))
{
list($account, $domain) = explode('@', $email, 2);
$domain = defined('INTL_IDNA_VARIANT_UTS46')
? idn_to_ascii($domain, 0, INTL_IDNA_VARIANT_UTS46)
: idn_to_ascii($domain);
if ($domain !== FALSE)
{
$email = $account.'@'.$domain;
}
}
return (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
}
// --------------------------------------------------------------------
/**
* Clean Extended Email Address: Joe Smith
*
* @param string
* @return string
*/
public function clean_email($email)
{
if ( ! is_array($email))
{
return preg_match('/\<(.*)\>/', $email, $match) ? $match[1] : $email;
}
$clean_email = array();
foreach ($email as $addy)
{
$clean_email[] = preg_match('/\<(.*)\>/', $addy, $match) ? $match[1] : $addy;
}
return $clean_email;
}
// --------------------------------------------------------------------
/**
* Build alternative plain text message
*
* Provides the raw message for use in plain-text headers of
* HTML-formatted emails.
* If the user hasn't specified his own alternative message
* it creates one by stripping the HTML
*
* @return string
*/
protected function _get_alt_message()
{
if ( ! empty($this->alt_message))
{
return ($this->wordwrap)
? $this->word_wrap($this->alt_message, 76)
: $this->alt_message;
}
$body = preg_match('/\(.*)\<\/body\>/si', $this->_body, $match) ? $match[1] : $this->_body;
$body = str_replace("\t", '', preg_replace('#