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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* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.* @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 pathvar $protocol = "mail"; // mail/sendmail/smtpvar $smtp_host = ""; // SMTP Server. Example: mail.earthlink.netvar $smtp_user = ""; // SMTP Usernamevar $smtp_pass = ""; // SMTP Passwordvar $smtp_port = "25"; // SMTP Portvar $smtp_timeout = 5; // SMTP Timeout in secondsvar $smtp_crypto = ""; // SMTP Encryption. Can be null, tls or ssl.var $wordwrap = TRUE; // TRUE/FALSE Turns word-wrap on/offvar $wrapchars = "76"; // Number of characters to wrap at.var $mailtype = "text"; // text/html Defines email formattingvar $charset = "utf-8"; // Default char set: iso-8859-1 or us-asciivar $multipart = "mixed"; // "mixed" (in the body) or "related" (separate)var $alt_message = ''; // Alternative message for HTML emailsvar $validate = FALSE; // TRUE/FALSE. Enables email validationvar $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 featurevar $bcc_batch_size = 200; // If bcc_batch_mode = TRUE, sets max number of Bccs in each batchvar $_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 $this;}// --------------------------------------------------------------------/*** Set FROM** @access public* @param string* @param string* @return void*/public function from($from, $name = ''){if (preg_match( '/\<(.*)\>/', $from, $match)){$from = $match['1'];}if ($this->validate){$this->validate_email($this->_str_to_array($from));}// prepare the display nameif ($name != ''){// only use Q encoding if there are characters that would require itif ( ! 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 $this;}// --------------------------------------------------------------------/*** Set Reply-to** @access public* @param string* @param string* @return void*/public function reply_to($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 $this;}// --------------------------------------------------------------------/*** Set BCC** @access public* @param string* @param string* @return void*/public function bcc($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", "", $body));/* strip slashes only if magic quotes is ONif we do it with magic quotes OFF, it strips real, user-inputted chars.NOTE: In PHP 5.4 get_magic_quotes_gpc() will always return 0 andit will probably not exist in future versions at all.*/if ( ! is_php('5.4') && get_magic_quotes_gpc()){$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 mattersreturn $this;}// --------------------------------------------------------------------/*** Add a Header Item** @access protected* @param string* @param string* @return void*/protected function _set_header($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, $charlim = ''){// Se the character limitif ($charlim == ''){$charlim = ($this->wrapchars == "") ? "76" : $this->wrapchars;}// Reduce multiple spaces$str = preg_replace("| +|", " ", $str);// Standardize newlinesif (strpos($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 $line){// Is the line within the allowed character count?// If so we'll join it to the output and continueif (strlen($line) <= $charlim){$output .= $line.$this->newline;continue;}$temp = '';while ((strlen($line)) > $charlim){// If the over-length word is a URL we won't wrap itif (preg_match("!\[url.+\]|://|wwww.!", $line)){break;}// Trim the word down$temp .= substr($line, 0, $charlim-1);$line = substr($line, $charlim-1);}// If $temp contains data it means we had to split up an over-length// word into smaller chunks so we'll add it back to our current lineif ($temp != ''){$output .= $temp.$this->newline.$line;}else{$output .= $line;}$output .= $this->newline;}// Put our markers backif (count($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'){$this->_header_str = rtrim($this->_header_str);}}// --------------------------------------------------------------------/*** Build Final Body and attachments** @access protected* @return void*/protected function _build_message(){if ($this->wordwrap === TRUE AND $this->mailtype != 'html'){$this->_body = $this->word_wrap($this->_body);}$this->_set_boundaries();$this->_write_headers();$hdr = ($this->_get_protocol() == 'mail') ? $this->newline : '';$body = '';switch ($this->_get_content_type()){case 'plain' :$hdr .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;$hdr .= "Content-Transfer-Encoding: " . $this->_get_encoding();if ($this->_get_protocol() == 'mail'){$this->_header_str .= $hdr;$this->_finalbody = $this->_body;}else{$this->_finalbody = $hdr . $this->newline . $this->newline . $this->_body;}return;break;case 'html' :if ($this->send_multipart === FALSE){$hdr .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;$hdr .= "Content-Transfer-Encoding: quoted-printable";}else{$hdr .= "Content-Type: multipart/alternative; boundary=\"" . $this->_alt_boundary . "\"" . $this->newline . $this->newline;$body .= $this->_get_mime_message() . $this->newline . $this->newline;$body .= "--" . $this->_alt_boundary . $this->newline;$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;$body .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;$body .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;$body .= "Content-Transfer-Encoding: quoted-printable" . $this->newline . $this->newline;}$this->_finalbody = $body . $this->_prep_quoted_printable($this->_body) . $this->newline . $this->newline;if ($this->_get_protocol() == 'mail'){$this->_header_str .= $hdr;}else{$this->_finalbody = $hdr . $this->_finalbody;}if ($this->send_multipart !== FALSE){$this->_finalbody .= "--" . $this->_alt_boundary . "--";}return;break;case 'plain-attach' :$hdr .= "Content-Type: multipart/".$this->multipart."; boundary=\"" . $this->_atc_boundary."\"" . $this->newline . $this->newline;if ($this->_get_protocol() == 'mail'){$this->_header_str .= $hdr;}$body .= $this->_get_mime_message() . $this->newline . $this->newline;$body .= "--" . $this->_atc_boundary . $this->newline;$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;$body .= $this->_body . $this->newline . $this->newline;break;case 'html-attach' :$hdr .= "Content-Type: multipart/".$this->multipart."; boundary=\"" . $this->_atc_boundary."\"" . $this->newline . $this->newline;if ($this->_get_protocol() == 'mail'){$this->_header_str .= $hdr;}$body .= $this->_get_mime_message() . $this->newline . $this->newline;$body .= "--" . $this->_atc_boundary . $this->newline;$body .= "Content-Type: multipart/alternative; boundary=\"" . $this->_alt_boundary . "\"" . $this->newline .$this->newline;$body .= "--" . $this->_alt_boundary . $this->newline;$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;$body .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;$body .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;$body .= "Content-Transfer-Encoding: quoted-printable" . $this->newline . $this->newline;$body .= $this->_prep_quoted_printable($this->_body) . $this->newline . $this->newline;$body .= "--" . $this->_alt_boundary . "--" . $this->newline . $this->newline;break;}$attachment = array();$z = 0;for ($i=0; $i < count($this->_attach_name); $i++){$filename = $this->_attach_name[$i];$basename = basename($filename);$ctype = $this->_attach_type[$i];if ( ! file_exists($filename)){$this->_set_error_message('lang:email_attachment_missing', $filename);return FALSE;}$h = "--".$this->_atc_boundary.$this->newline;$h .= "Content-type: ".$ctype."; ";$h .= "name=\"".$basename."\"".$this->newline;$h .= "Content-Disposition: ".$this->_attach_disp[$i].";".$this->newline;$h .= "Content-Transfer-Encoding: base64".$this->newline;$attachment[$z++] = $h;$file = filesize($filename) +1;if ( ! $fp = fopen($filename, FOPEN_READ)){$this->_set_error_message('lang:email_attachment_unreadable', $filename);return FALSE;}$attachment[$z++] = chunk_split(base64_encode(fread($fp, $file)));fclose($fp);}$body .= implode($this->newline, $attachment).$this->newline."--".$this->_atc_boundary."--";if ($this->_get_protocol() == 'mail'){$this->_finalbody = $body;}else{$this->_finalbody = $hdr . $body;}return;}// --------------------------------------------------------------------/*** Prep Quoted Printable** Prepares string for Quoted-Printable Content-Transfer-Encoding* Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt** @access protected* @param string* @param integer* @return string*/protected function _prep_quoted_printable($str, $charlim = ''){// Set the character limit// Don't allow over 76, as that will make servers and MUAs barf// all over quoted-printable dataif ($charlim == '' OR $charlim > '76'){$charlim = '76';}// Reduce multiple spaces$str = preg_replace("| +|", " ", $str);// kill nulls$str = preg_replace('/\x00+/', '', $str);// Standardize newlinesif (strpos($str, "\r") !== FALSE){$str = str_replace(array("\r\n", "\r"), "\n", $str);}// We are intentionally wrapping so mail servers will encode characters// properly and MUAs will behave, so {unwrap} must go!$str = str_replace(array('{unwrap}', '{/unwrap}'), '', $str);// Break into an array of lines$lines = explode("\n", $str);$escape = '=';$output = '';foreach ($lines as $line){$length = 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 = substr($line, $i, 1);$ascii = ord($char);// Convert spaces and tabs but only if it's the end of the lineif ($i == ($length - 1)){$char = ($ascii == '32' OR $ascii == '9') ? $escape.sprintf('%02s', dechex($ascii)) : $char;}// encode = signsif ($ascii == '61'){$char = $escape.strtoupper(sprintf('%02s', dechex($ascii))); // =3D}// If we're at the character limit, add the line to the output,// reset our temp variable, and keep on chuggin'if ((strlen($temp) + strlen($char)) >= $charlim){$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$output = substr($output, 0, strlen($this->crlf) * -1);return $output;}// --------------------------------------------------------------------/*** Prep Q Encoding** Performs "Q Encoding" on a string for use in email headers. It's related* but not identical to quoted-printable, so it has its own method** @access public* @param str* @param bool // set to TRUE for processing From: headers* @return str*/protected function _prep_q_encoding($str, $from = FALSE){$str = str_replace(array("\r", "\n"), array('', ''), $str);// Line length must not exceed 76 characters, so we adjust for// a space, 7 extra characters =??Q??=, and the charset that we will add to each line$limit = 75 - 7 - strlen($this->charset);// these special characters must be converted too$convert = array('_', '=', '?');if ($from === TRUE){$convert[] = ',';$convert[] = ';';}$output = '';$temp = '';for ($i = 0, $length = strlen($str); $i < $length; $i++){// Grab the next character$char = substr($str, $i, 1);$ascii = ord($char);// convert ALL non-printable ASCII characters and our specialsif ($ascii < 32 OR $ascii > 126 OR in_array($char, $convert)){$char = '='.dechex($ascii);}// handle regular spaces a bit more compactly than =20if ($ascii == 32){$char = '_';}// If we're at the character limit, add the line to the output,// reset our temp variable, and keep on chuggin'if ((strlen($temp) + strlen($char)) >= $limit){$output .= $temp.$this->crlf;$temp = '';}// Add the character to our temporary line$temp .= $char;}$str = $output.$temp;// wrap each line with the shebang, charset, and transfer encoding// the preceding space on successive lines is required for header "folding"$str = trim(preg_replace('/^(.*)$/m', ' =?'.$this->charset.'?Q?$1?=', $str));return $str;}// --------------------------------------------------------------------/*** Send Email** @access public* @return bool*/public function send(){if ($this->_replyto_flag == FALSE){$this->reply_to($this->_headers['From']);}if (( ! isset($this->_recipients) AND ! isset($this->_headers['To'])) AND( ! isset($this->_bcc_array) AND ! isset($this->_headers['Bcc'])) AND( ! isset($this->_headers['Cc']))){$this->_set_error_message('lang:email_no_recipients');return FALSE;}$this->_build_headers();if ($this->bcc_batch_mode AND count($this->_bcc_array) > 0){if (count($this->_bcc_array) > $this->bcc_batch_size)return $this->batch_bcc_send();}$this->_build_message();if ( ! $this->_spool_email()){return FALSE;}else{return TRUE;}}// --------------------------------------------------------------------/*** Batch Bcc Send. Sends groups of BCCs in batches** @access public* @return bool*/public function batch_bcc_send(){$float = $this->bcc_batch_size -1;$set = "";$chunk = array();for ($i = 0; $i < count($this->_bcc_array); $i++){if (isset($this->_bcc_array[$i])){$set .= ", ".$this->_bcc_array[$i];}if ($i == $float){$chunk[] = substr($set, 1);$float = $float + $this->bcc_batch_size;$set = "";}if ($i == count($this->_bcc_array)-1){$chunk[] = substr($set, 1);}}for ($i = 0; $i < count($chunk); $i++){unset($this->_headers['Bcc']);unset($bcc);$bcc = $this->_str_to_array($chunk[$i]);$bcc = $this->clean_email($bcc);if ($this->protocol != 'smtp'){$this->_set_header('Bcc', implode(", ", $bcc));}else{$this->_bcc_array = $bcc;}$this->_build_message();$this->_spool_email();}}// --------------------------------------------------------------------/*** Unwrap special elements** @access protected* @return void*/protected function _unwrap_specials(){$this->_finalbody = preg_replace_callback("/\{unwrap\}(.*?)\{\/unwrap\}/si", array($this, '_remove_nl_callback'), $this->_finalbody);}// --------------------------------------------------------------------/*** Strip line-breaks via callback** @access protected* @return string*/protected function _remove_nl_callback($matches){if (strpos($matches[1], "\r") !== FALSE OR strpos($matches[1], "\n") !== FALSE){$matches[1] = str_replace(array("\r\n", "\r", "\n"), '', $matches[1]);}return $matches[1];}// --------------------------------------------------------------------/*** Spool mail to the mail server** @access protected* @return bool*/protected function _spool_email(){$this->_unwrap_specials();switch ($this->_get_protocol()){case 'mail' :if ( ! $this->_send_with_mail()){$this->_set_error_message('lang:email_send_failure_phpmail');return FALSE;}break;case 'sendmail' :if ( ! $this->_send_with_sendmail()){$this->_set_error_message('lang:email_send_failure_sendmail');return FALSE;}break;case 'smtp' :if ( ! $this->_send_with_smtp()){$this->_set_error_message('lang:email_send_failure_smtp');return FALSE;}break;}$this->_set_error_message('lang:email_sent', $this->_get_protocol());return TRUE;}// --------------------------------------------------------------------/*** Send using mail()** @access protected* @return bool*/protected function _send_with_mail(){if ($this->_safe_mode == TRUE){if ( ! mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str)){return FALSE;}else{return TRUE;}}else{// most documentation of sendmail using the "-f" flag lacks a space after it, however// we've encountered servers that seem to require it to be in place.if ( ! mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str, "-f ".$this->clean_email($this->_headers['From']))){return FALSE;}else{return TRUE;}}}// --------------------------------------------------------------------/*** Send using Sendmail** @access protected* @return bool*/protected function _send_with_sendmail(){$fp = @popen($this->mailpath . " -oi -f ".$this->clean_email($this->_headers['From'])." -t", 'w');if ($fp === FALSE OR $fp === NULL){// server probably has popen disabled, so nothing we can do to get a verbose error.return FALSE;}fputs($fp, $this->_header_str);fputs($fp, $this->_finalbody);$status = pclose($fp);if (version_compare(PHP_VERSION, '4.2.3') == -1){$status = $status >> 8 & 0xFF;}if ($status != 0){$this->_set_error_message('lang:email_exit_status', $status);$this->_set_error_message('lang:email_no_socket');return FALSE;}return TRUE;}// --------------------------------------------------------------------/*** Send using SMTP** @access protected* @return bool*/protected function _send_with_smtp(){if ($this->smtp_host == ''){$this->_set_error_message('lang:email_no_hostname');return FALSE;}$this->_smtp_connect();$this->_smtp_authenticate();$this->_send_command('from', $this->clean_email($this->_headers['From']));foreach ($this->_recipients as $val){$this->_send_command('to', $val);}if (count($this->_cc_array) > 0){foreach ($this->_cc_array as $val){if ($val != ""){$this->_send_command('to', $val);}}}if (count($this->_bcc_array) > 0){foreach ($this->_bcc_array as $val){if ($val != ""){$this->_send_command('to', $val);}}}$this->_send_command('data');// perform dot transformation on any lines that begin with a dot$this->_send_data($this->_header_str . preg_replace('/^\./m', '..$1', $this->_finalbody));$this->_send_data('.');$reply = $this->_get_smtp_data();$this->_set_error_message($reply);if (strncmp($reply, '250', 3) != 0){$this->_set_error_message('lang:email_smtp_error', $reply);return FALSE;}$this->_send_command('quit');return TRUE;}// --------------------------------------------------------------------/*** SMTP Connect** @access protected* @param string* @return string*/protected function _smtp_connect(){$ssl = NULL;if ($this->smtp_crypto == 'ssl')$ssl = 'ssl://';$this->_smtp_connect = fsockopen($ssl.$this->smtp_host,$this->smtp_port,$errno,$errstr,$this->smtp_timeout);if ( ! is_resource($this->_smtp_connect)){$this->_set_error_message('lang:email_smtp_error', $errno." ".$errstr);return FALSE;}$this->_set_error_message($this->_get_smtp_data());if ($this->smtp_crypto == 'tls'){$this->_send_command('hello');$this->_send_command('starttls');stream_socket_enable_crypto($this->_smtp_connect, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT);}return $this->_send_command('hello');}// --------------------------------------------------------------------/*** Send SMTP command** @access protected* @param string* @param string* @return string*/protected function _send_command($cmd, $data = ''){switch ($cmd){case 'hello' :if ($this->_smtp_auth OR $this->_get_encoding() == '8bit')$this->_send_data('EHLO '.$this->_get_hostname());else$this->_send_data('HELO '.$this->_get_hostname());$resp = 250;break;case 'starttls' :$this->_send_data('STARTTLS');$resp = 220;break;case 'from' :$this->_send_data('MAIL FROM:<'.$data.'>');$resp = 250;break;case 'to' :$this->_send_data('RCPT TO:<'.$data.'>');$resp = 250;break;case 'data' :$this->_send_data('DATA');$resp = 354;break;case 'quit' :$this->_send_data('QUIT');$resp = 221;break;}$reply = $this->_get_smtp_data();$this->_debug_msg[] = "<pre>".$cmd.": ".$reply."</pre>";if (substr($reply, 0, 3) != $resp){$this->_set_error_message('lang:email_smtp_error', $reply);return FALSE;}if ($cmd == 'quit'){fclose($this->_smtp_connect);}return TRUE;}// --------------------------------------------------------------------/*** SMTP Authenticate** @access protected* @return bool*/protected function _smtp_authenticate(){if ( ! $this->_smtp_auth){return TRUE;}if ($this->smtp_user == "" AND $this->smtp_pass == ""){$this->_set_error_message('lang:email_no_smtp_unpw');return FALSE;}$this->_send_data('AUTH LOGIN');$reply = $this->_get_smtp_data();if (strncmp($reply, '334', 3) != 0){$this->_set_error_message('lang:email_failed_smtp_login', $reply);return FALSE;}$this->_send_data(base64_encode($this->smtp_user));$reply = $this->_get_smtp_data();if (strncmp($reply, '334', 3) != 0){$this->_set_error_message('lang:email_smtp_auth_un', $reply);return FALSE;}$this->_send_data(base64_encode($this->smtp_pass));$reply = $this->_get_smtp_data();if (strncmp($reply, '235', 3) != 0){$this->_set_error_message('lang:email_smtp_auth_pw', $reply);return FALSE;}return TRUE;}// --------------------------------------------------------------------/*** Send SMTP data** @access protected* @return bool*/protected function _send_data($data){if ( ! fwrite($this->_smtp_connect, $data . $this->newline)){$this->_set_error_message('lang:email_smtp_data_failure', $data);return FALSE;}else{return TRUE;}}// --------------------------------------------------------------------/*** Get SMTP data** @access protected* @return string*/protected function _get_smtp_data(){$data = "";while ($str = fgets($this->_smtp_connect, 512)){$data .= $str;if (substr($str, 3, 1) == " "){break;}}return $data;}// --------------------------------------------------------------------/*** Get Hostname** @access protected* @return string*/protected function _get_hostname(){return (isset($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain';}// --------------------------------------------------------------------/*** Get IP** @access protected* @return string*/protected function _get_ip(){if ($this->_IP !== FALSE){return $this->_IP;}$cip = (isset($_SERVER['HTTP_CLIENT_IP']) AND $_SERVER['HTTP_CLIENT_IP'] != "") ? $_SERVER['HTTP_CLIENT_IP'] : FALSE;$rip = (isset($_SERVER['REMOTE_ADDR']) AND $_SERVER['REMOTE_ADDR'] != "") ? $_SERVER['REMOTE_ADDR'] : FALSE;$fip = (isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND $_SERVER['HTTP_X_FORWARDED_FOR'] != "") ? $_SERVER['HTTP_X_FORWARDED_FOR'] : FALSE;if ($cip && $rip) $this->_IP = $cip;elseif ($rip) $this->_IP = $rip;elseif ($cip) $this->_IP = $cip;elseif ($fip) $this->_IP = $fip;if (strpos($this->_IP, ',') !== FALSE){$x = explode(',', $this->_IP);$this->_IP = end($x);}if ( ! preg_match( "/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/", $this->_IP)){$this->_IP = '0.0.0.0';}unset($cip);unset($rip);unset($fip);return $this->_IP;}// --------------------------------------------------------------------/*** Get Debug Message** @access public* @return string*/public function print_debugger(){$msg = '';if (count($this->_debug_msg) > 0){foreach ($this->_debug_msg as $val){$msg .= $val;}}$msg .= "<pre>".htmlspecialchars($this->_header_str)."\n".htmlspecialchars($this->_subject)."\n".htmlspecialchars($this->_finalbody).'</pre>';return $msg;}// --------------------------------------------------------------------/*** Set Message** @access protected* @param string* @return string*/protected function _set_error_message($msg, $val = ''){$CI =& get_instance();$CI->lang->load('email');if (substr($msg, 0, 5) != 'lang:' || FALSE === ($line = $CI->lang->line(substr($msg, 5)))){$this->_debug_msg[] = str_replace('%s', $val, $msg)."<br />";}else{$this->_debug_msg[] = str_replace('%s', $val, $line)."<br />";}}// --------------------------------------------------------------------/*** Mime Types** @access protected* @param string* @return string*/protected function _mime_types($ext = ""){$mimes = array( 'hqx' => 'application/mac-binhex40','cpt' => 'application/mac-compactpro','doc' => 'application/msword','bin' => 'application/macbinary','dms' => 'application/octet-stream','lha' => 'application/octet-stream','lzh' => 'application/octet-stream','exe' => 'application/octet-stream','class' => 'application/octet-stream','psd' => 'application/octet-stream','so' => 'application/octet-stream','sea' => 'application/octet-stream','dll' => 'application/octet-stream','oda' => 'application/oda','pdf' => 'application/pdf','ai' => 'application/postscript','eps' => 'application/postscript','ps' => 'application/postscript','smi' => 'application/smil','smil' => 'application/smil','mif' => 'application/vnd.mif','xls' => 'application/vnd.ms-excel','ppt' => 'application/vnd.ms-powerpoint','wbxml' => 'application/vnd.wap.wbxml','wmlc' => 'application/vnd.wap.wmlc','dcr' => 'application/x-director','dir' => 'application/x-director','dxr' => 'application/x-director','dvi' => 'application/x-dvi','gtar' => 'application/x-gtar','php' => 'application/x-httpd-php','php4' => 'application/x-httpd-php','php3' => 'application/x-httpd-php','phtml' => 'application/x-httpd-php','phps' => 'application/x-httpd-php-source','js' => 'application/x-javascript','swf' => 'application/x-shockwave-flash','sit' => 'application/x-stuffit','tar' => 'application/x-tar','tgz' => 'application/x-tar','xhtml' => 'application/xhtml+xml','xht' => 'application/xhtml+xml','zip' => 'application/zip','mid' => 'audio/midi','midi' => 'audio/midi','mpga' => 'audio/mpeg','mp2' => 'audio/mpeg','mp3' => 'audio/mpeg','aif' => 'audio/x-aiff','aiff' => 'audio/x-aiff','aifc' => 'audio/x-aiff','ram' => 'audio/x-pn-realaudio','rm' => 'audio/x-pn-realaudio','rpm' => 'audio/x-pn-realaudio-plugin','ra' => 'audio/x-realaudio','rv' => 'video/vnd.rn-realvideo','wav' => 'audio/x-wav','bmp' => 'image/bmp','gif' => 'image/gif','jpeg' => 'image/jpeg','jpg' => 'image/jpeg','jpe' => 'image/jpeg','png' => 'image/png','tiff' => 'image/tiff','tif' => 'image/tiff','css' => 'text/css','html' => 'text/html','htm' => 'text/html','shtml' => 'text/html','txt' => 'text/plain','text' => 'text/plain','log' => 'text/plain','rtx' => 'text/richtext','rtf' => 'text/rtf','xml' => 'text/xml','xsl' => 'text/xml','mpeg' => 'video/mpeg','mpg' => 'video/mpeg','mpe' => 'video/mpeg','qt' => 'video/quicktime','mov' => 'video/quicktime','avi' => 'video/x-msvideo','movie' => 'video/x-sgi-movie','doc' => 'application/msword','word' => 'application/msword','xl' => 'application/excel','eml' => 'message/rfc822');return ( ! isset($mimes[strtolower($ext)])) ? "application/x-unknown-content-type" : $mimes[strtolower($ext)];}}// END CI_Email class/* End of file Email.php *//* Location: ./system/libraries/Email.php */