<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * * Licensed under the Open Software License version 3.0 * * This source file is subject to the Open Software License (OSL 3.0) that is * bundled with this package in the files license.txt / license.rst. It is * also available through the world wide web at this URL: * http://opensource.org/licenses/OSL-3.0 * If you did not receive a copy of the license and are unable to obtain it * through the world wide web, please send an email to * licensing@ellislab.com so we can send you a copy immediately. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @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 EllisLab Dev Team * @link http://codeigniter.com/user_guide/libraries/email.html */ class CI_Email { public $useragent = 'CodeIgniter'; public $mailpath = '/usr/sbin/sendmail'; // Sendmail path public $protocol = 'mail'; // mail/sendmail/smtp public $smtp_host = ''; // SMTP Server. Example: mail.earthlink.net public $smtp_user = ''; // SMTP Username public $smtp_pass = ''; // SMTP Password public $smtp_port = 25; // SMTP Port public $smtp_timeout = 5; // SMTP Timeout in seconds public $smtp_crypto = ''; // SMTP Encryption. Can be null, tls or ssl. public $wordwrap = TRUE; // TRUE/FALSE Turns word-wrap on/off public $wrapchars = 76; // Number of characters to wrap at. public $mailtype = 'text'; // text/html Defines email formatting public $charset = 'utf-8'; // Default char set: iso-8859-1 or us-ascii public $multipart = 'mixed'; // "mixed" (in the body) or "related" (separate) public $alt_message = ''; // Alternative message for HTML emails public $validate = FALSE; // TRUE/FALSE. Enables email validation public $priority = 3; // Default priority (1 - 5) public $newline = "\n"; // Default newline. "\r\n" or "\n" (Use "\r\n" to comply with RFC 822) public $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. public $dsn = FALSE; // Delivery Status Notification public $send_multipart = TRUE; // TRUE/FALSE - Yahoo does not like multipart alternative, so this is an override. Set to FALSE for Yahoo. public $bcc_batch_mode = FALSE; // TRUE/FALSE - Turns on/off Bcc batch feature public $bcc_batch_size = 200; // If bcc_batch_mode = TRUE, sets max number of Bccs in each batch protected $_safe_mode = FALSE; protected $_subject = ''; protected $_body = ''; protected $_finalbody = ''; protected $_alt_boundary = ''; protected $_atc_boundary = ''; protected $_header_str = ''; protected $_smtp_connect = ''; protected $_encoding = '8bit'; protected $_IP = FALSE; protected $_smtp_auth = FALSE; protected $_replyto_flag = FALSE; protected $_debug_msg = array(); protected $_recipients = array(); protected $_cc_array = array(); protected $_bcc_array = array(); protected $_headers = array(); protected $_attach_name = array(); protected $_attach_type = array(); protected $_attach_disp = array(); protected $_protocols = array('mail', 'sendmail', 'smtp'); protected $_base_charsets = array('us-ascii', 'iso-2022-'); // 7-bit charsets (excluding language suffix) protected $_bit_depths = array('7bit', '8bit'); protected $_priorities = array('1 (Highest)', '2 (High)', '3 (Normal)', '4 (Low)', '5 (Lowest)'); /** * Constructor - Sets Email Preferences * * The constructor can be passed an array of config values * * @return void */ public function __construct($config = array()) { if (count($config) > 0) { $this->initialize($config); } else { $this->_smtp_auth = ! ($this->smtp_user === '' && $this->smtp_pass === ''); $this->_safe_mode = (bool) @ini_get('safe_mode'); } log_message('debug', 'Email Class Initialized'); } // -------------------------------------------------------------------- /** * Initialize preferences * * @param array * @return void */ public function initialize($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 === '' && $this->smtp_pass === ''); $this->_safe_mode = (bool) @ini_get('safe_mode'); return $this; } // -------------------------------------------------------------------- /** * Initialize the Email Data * * @param bool * @return object */ public function clear($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 $this; } // -------------------------------------------------------------------- /** * Set FROM * * @param string * @param string * @return object */ public function from($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 $this; } // -------------------------------------------------------------------- /** * Set Reply-to * * @param string * @param string * @return object */ public function reply_to($replyto, $name = '') { if (preg_match('/\<(.*)\>/', $replyto, $match)) { $replyto = $match[1]; } if ($this->validate) { $this->validate_email($this->_str_to_array($replyto)); } if ($name === '') { $name = $replyto; } if (strpos($name, '"') !== 0) { $name = '"'.$name.'"'; } $this->set_header('Reply-To', $name.' <'.$replyto.'>'); $this->_replyto_flag = TRUE; return $this; } // -------------------------------------------------------------------- /** * Set Recipients * * @param string * @return object */ public function to($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 $this; } // -------------------------------------------------------------------- /** * Set CC * * @param string * @return object */ public function cc($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 $this; } // -------------------------------------------------------------------- /** * Set BCC * * @param string * @param string * @return object */ public function bcc($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 $this; } // -------------------------------------------------------------------- /** * Set Email Subject * * @param string * @return object */ public function subject($subject) { $subject = $this->_prep_q_encoding($subject); $this->set_header('Subject', $subject); return $this; } // -------------------------------------------------------------------- /** * Set Body * * @param string * @return object */ public function message($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 $this; } // -------------------------------------------------------------------- /** * Assign file attachments * * @param string * @return object */ public function attach($filename, $disposition = '', $newname = NULL, $mime = '') { $this->_attach_name[] = array($filename, $newname); $this->_attach_disp[] = empty($disposition) ? 'attachment' : $disposition; // Can also be 'inline' Not sure if it matters $this->_attach_type[] = $mime; return $this; } // -------------------------------------------------------------------- /** * Add a Header Item * * @param string * @param string * @return void */ public function set_header($header, $value) { $this->_headers[$header] = $value; } // -------------------------------------------------------------------- /** * Convert a String to an Array * * @param string * @return array */ protected function _str_to_array($email) { if ( ! is_array($email)) { return (strpos($email, ',') !== FALSE) ? preg_split('/[\s,]/', $email, -1, PREG_SPLIT_NO_EMPTY) : (array) trim($email); } return $email; } // -------------------------------------------------------------------- /** * Set Multipart Value * * @param string * @return object */ public function set_alt_message($str = '') { $this->alt_message = (string) $str; return $this; } // -------------------------------------------------------------------- /** * Set Mailtype * * @param string * @return object */ public function set_mailtype($type = 'text') { $this->mailtype = ($type === 'html') ? 'html' : 'text'; return $this; } // -------------------------------------------------------------------- /** * Set Wordwrap * * @param bool * @return object */ public function set_wordwrap($wordwrap = TRUE) { $this->wordwrap = (bool) $wordwrap; return $this; } // -------------------------------------------------------------------- /** * Set Protocol * * @param string * @return object */ public function set_protocol($protocol = 'mail') { $this->protocol = in_array($protocol, $this->_protocols, TRUE) ? strtolower($protocol) : 'mail'; return $this; } // -------------------------------------------------------------------- /** * Set Priority * * @param int * @return object */ public function set_priority($n = 3) { $this->priority = preg_match('/^[1-5]$/', $n) ? (int) $n : 3; return $this; } // -------------------------------------------------------------------- /** * Set Newline Character * * @param string * @return object */ public function set_newline($newline = "\n") { $this->newline = in_array($newline, array("\n", "\r\n", "\r")) ? $newline : "\n"; return $this; } // -------------------------------------------------------------------- /** * Set CRLF * * @param string * @return object */ public function set_crlf($crlf = "\n") { $this->crlf = ($crlf !== "\n" && $crlf !== "\r\n" && $crlf !== "\r") ? "\n" : $crlf; return $this; } // -------------------------------------------------------------------- /** * Set Message Boundary * * @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 * * @return string */ protected function _get_message_id() { $from = str_replace(array('>', '<'), '', $this->_headers['Return-Path']); return '<'.uniqid('').strstr($from, '@').'>'; } // -------------------------------------------------------------------- /** * Get Mail Protocol * * @param bool * @return mixed */ protected function _get_protocol($return = TRUE) { $this->protocol = strtolower($this->protocol); in_array($this->protocol, $this->_protocols, TRUE) OR $this->protocol = 'mail'; if ($return === TRUE) { return $this->protocol; } } // -------------------------------------------------------------------- /** * Get Mail Encoding * * @param bool * @return string */ protected function _get_encoding($return = TRUE) { in_array($this->_encoding, $this->_bit_depths) OR $this->_encoding = '8bit'; foreach ($this->_base_charsets as $charset) { if (strpos($charset, $this->charset) === 0) { $this->_encoding = '7bit'; } } if ($return === TRUE) { return $this->_encoding; } } // -------------------------------------------------------------------- /** * Get content type (text/html/attachment) * * @return string */ protected function _get_content_type() { if ($this->mailtype === 'html') { return (count($this->_attach_name) === 0) ? 'html' : 'html-attach'; } elseif ($this->mailtype === 'text' && count($this->_attach_name) > 0) { return 'plain-attach'; } else { 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) { return (bool) filter_var($email, FILTER_VALIDATE_EMAIL); } // -------------------------------------------------------------------- /** * Clean Extended Email Address: Joe Smith <joe@smith.com> * * @param string * @return string */ public function clean_email($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 $clean_email; } // -------------------------------------------------------------------- /** * Build alternative plain text message * * This public function provides the raw message for use * in plain-text headers of HTML-formatted emails. * If the user hasn't specified his own alternative message * it creates one by stripping the HTML * * @return string */ protected function _get_alt_message() { if ($this->alt_message !== '') { return $this->word_wrap($this->alt_message, '76'); } $body = preg_match('/\<body.*?\>(.*)\<\/body\>/si', $this->_body, $match) ? $match[1] : $this->_body; $body = str_replace("\t", '', preg_replace('#<!--(.*)--\>#', '', trim(strip_tags($body)))); for ($i = 20; $i >= 3; $i--) { $body = str_replace(str_repeat("\n", $i), "\n\n", $body); } return $this->word_wrap($body, 76); } // -------------------------------------------------------------------- /** * Word Wrap * * @param string * @param int * @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, $c = count($matches[0]); $i < $c; $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 = ''; do { // 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, $charlim-1); } while (strlen($line) > $charlim); // 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; } $output .= $line.$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 * * @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()); $this->set_header('Mime-Version', '1.0'); } // -------------------------------------------------------------------- /** * Write Headers as a string * * @return void */ protected function _write_headers() { if ($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 * * @return void */ protected function _build_message() { if ($this->wordwrap === TRUE && $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.$this->newline .'Content-Transfer-Encoding: '.$this->_get_encoding(); if ($this->_get_protocol() === 'mail') { $this->_header_str .= $hdr; $this->_finalbody = $this->_body; } else { $this->_finalbody = $hdr . $this->newline . $this->newline . $this->_body; } return; case 'html' : if ($this->send_multipart === FALSE) { $hdr .= 'Content-Type: text/html; charset='.$this->charset.$this->newline .'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.$this->newline .'--'.$this->_alt_boundary.$this->newline .'Content-Type: text/plain; charset='.$this->charset.$this->newline .'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline.$this->newline .$this->_get_alt_message().$this->newline.$this->newline.'--'.$this->_alt_boundary.$this->newline .'Content-Type: text/html; charset='.$this->charset.$this->newline .'Content-Transfer-Encoding: quoted-printable'.$this->newline.$this->newline; } $this->_finalbody = $body.$this->_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; 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.$this->newline .'--'.$this->_atc_boundary.$this->newline .'Content-Type: text/plain; charset='.$this->charset.$this->newline .'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline.$this->newline .$this->_body.$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.$this->newline .'--'.$this->_atc_boundary.$this->newline .'Content-Type: multipart/alternative; boundary="'.$this->_alt_boundary.'"'.$this->newline.$this->newline .'--'.$this->_alt_boundary.$this->newline .'Content-Type: text/plain; charset='.$this->charset.$this->newline .'Content-Transfer-Encoding: '.$this->_get_encoding().$this->newline.$this->newline .$this->_get_alt_message().$this->newline.$this->newline.'--'.$this->_alt_boundary.$this->newline .'Content-Type: text/html; charset='.$this->charset.$this->newline .'Content-Transfer-Encoding: quoted-printable'.$this->newline.$this->newline .$this->_prep_quoted_printable($this->_body).$this->newline.$this->newline .'--'.$this->_alt_boundary.'--'.$this->newline.$this->newline; break; } $attachment = array(); for ($i = 0, $c = count($this->_attach_name), $z = 0; $i < $c; $i++) { $filename = $this->_attach_name[$i][0]; $basename = is_null($this->_attach_name[$i][1]) ? basename($filename) : $this->_attach_name[$i][1]; $ctype = $this->_attach_type[$i]; $file_content = ''; if ($this->_attach_type[$i] === '') { if ( ! file_exists($filename)) { $this->_set_error_message('lang:email_attachment_missing', $filename); return FALSE; } $file = filesize($filename) +1; if ( ! $fp = fopen($filename, FOPEN_READ)) { $this->_set_error_message('lang:email_attachment_unreadable', $filename); return FALSE; } $ctype = $this->_mime_types(pathinfo($filename, PATHINFO_EXTENSION)); $file_content = fread($fp, $file); fclose($fp); } else { $file_content =& $this->_attach_content[$i]; } $attachment[$z++] = '--'.$this->_atc_boundary.$this->newline .'Content-type: '.$ctype.'; ' .'name="'.$basename.'"'.$this->newline .'Content-Disposition: '.$this->_attach_disp[$i].';'.$this->newline .'Content-Transfer-Encoding: base64'.$this->newline; $attachment[$z++] = chunk_split(base64_encode($file_content)); } $body .= implode($this->newline, $attachment).$this->newline.'--'.$this->_atc_boundary.'--'; $this->_finalbody = ($this->_get_protocol() === 'mail') ? $body : $hdr.$body; return; } // -------------------------------------------------------------------- /** * Prep Quoted Printable * * Prepares string for Quoted-Printable Content-Transfer-Encoding * Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt * * @param string * @param int * @return string */ protected function _prep_quoted_printable($str, $charlim = '') { // Set the character limit // Don't allow over 76, as that will make servers and MUAs barf // all over quoted-printable data if ($charlim === '' OR $charlim > 76) { $charlim = 76; } // Reduce multiple spaces & remove nulls $str = preg_replace(array('| +|', '/\x00+/'), array(' ', ''), $str); // Standardize newlines if (strpos($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); $escape = '='; $output = ''; foreach (explode("\n", $str) 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 = $line[$i]; $ascii = ord($char); // Convert spaces and tabs but only if it's the end of the line if ($i === ($length - 1) && ($ascii === 32 OR $ascii === 9)) { $char = $escape.sprintf('%02s', dechex($ascii)); } elseif ($ascii === 61) // encode = signs { $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 return substr($output, 0, strlen($this->crlf) * -1); } // -------------------------------------------------------------------- /** * 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 * * @param string * @param bool set to TRUE for processing From: headers * @return string */ 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 = $str[$i]; $ascii = ord($char); // convert ALL non-printable ASCII characters and our specials if ($ascii < 32 OR $ascii > 126 OR in_array($char, $convert)) { $char = '='.dechex($ascii); } // handle regular spaces a bit more compactly than =20 if ($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 .= $char; } // wrap each line with the shebang, charset, and transfer encoding // the preceding space on successive lines is required for header "folding" return trim(preg_replace('/^(.*)$/m', ' =?'.$this->charset.'?Q?$1?=', $output.$temp)); } // -------------------------------------------------------------------- /** * Send Email * * @return bool */ public function send() { if ($this->_replyto_flag === FALSE) { $this->reply_to($this->_headers['From']); } if ( ! isset($this->_recipients) && ! isset($this->_headers['To']) && ! isset($this->_bcc_array) && ! isset($this->_headers['Bcc']) && ! isset($this->_headers['Cc'])) { $this->_set_error_message('lang:email_no_recipients'); return FALSE; } $this->_build_headers(); if ($this->bcc_batch_mode && count($this->_bcc_array) > $this->bcc_batch_size) { return $this->batch_bcc_send(); } $this->_build_message(); return $this->_spool_email(); } // -------------------------------------------------------------------- /** * Batch Bcc Send. Sends groups of BCCs in batches * * @return void */ public function batch_bcc_send() { $float = $this->bcc_batch_size - 1; $set = ''; $chunk = array(); for ($i = 0, $c = count($this->_bcc_array); $i < $c; $i++) { if (isset($this->_bcc_array[$i])) { $set .= ', '.$this->_bcc_array[$i]; } if ($i === $float) { $chunk[] = substr($set, 1); $float += $this->bcc_batch_size; $set = ''; } if ($i === $c-1) { $chunk[] = substr($set, 1); } } for ($i = 0, $c = count($chunk); $i < $c; $i++) { unset($this->_headers['Bcc']); $bcc = $this->clean_email($this->_str_to_array($chunk[$i])); if ($this->protocol !== 'smtp') { $this->set_header('Bcc', implode(', ', $bcc)); } else { $this->_bcc_array = $bcc; } $this->_build_message(); $this->_spool_email(); } } // -------------------------------------------------------------------- /** * Unwrap special elements * * @return void */ protected function _unwrap_specials() { $this->_finalbody = preg_replace_callback('/\{unwrap\}(.*?)\{\/unwrap\}/si', array($this, '_remove_nl_callback'), $this->_finalbody); } // -------------------------------------------------------------------- /** * Strip line-breaks via callback * * @return string */ protected function _remove_nl_callback($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 * * @return bool */ protected function _spool_email() { $this->_unwrap_specials(); $method = '_send_with_'.$this->_get_protocol(); if ( ! $this->$method()) { $this->_set_error_message('lang:email_send_failure_'.($this->_get_protocol() === 'mail' ? 'phpmail' : $this->_get_protocol())); return FALSE; } $this->_set_error_message('lang:email_sent', $this->_get_protocol()); return TRUE; } // -------------------------------------------------------------------- /** * Send using mail() * * @return bool */ protected function _send_with_mail() { if ($this->_safe_mode === TRUE) { return mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str); } else { // most documentation of sendmail using the "-f" flag lacks a space after it, however // we've encountered servers that seem to require it to be in place. return mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str, '-f '.$this->clean_email($this->_headers['From'])); } } // -------------------------------------------------------------------- /** * Send using Sendmail * * @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 ($status !== 0) { $this->_set_error_message('lang:email_exit_status', $status); $this->_set_error_message('lang:email_no_socket'); return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Send using SMTP * * @return bool */ protected function _send_with_smtp() { if ($this->smtp_host === '') { $this->_set_error_message('lang:email_no_hostname'); return FALSE; } if ( ! $this->_smtp_connect() OR ! $this->_smtp_authenticate()) { return FALSE; } $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 (strpos($reply, '250') !== 0) { $this->_set_error_message('lang:email_smtp_error', $reply); return FALSE; } $this->_send_command('quit'); return TRUE; } // -------------------------------------------------------------------- /** * SMTP Connect * * @param string * @return string */ protected function _smtp_connect() { $ssl = ($this->smtp_crypto === 'ssl') ? 'ssl://' : NULL; $this->_smtp_connect = fsockopen($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'); $crypto = stream_socket_enable_crypto($this->_smtp_connect, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT); if ($crypto !== TRUE) { $this->_set_error_message('lang:email_smtp_error', $this->_get_smtp_data()); return FALSE; } } return $this->_send_command('hello'); } // -------------------------------------------------------------------- /** * Send SMTP command * * @param string * @param string * @return string */ protected function _send_command($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.'>'); $resp = 250; break; case 'to' : if ($this->dsn) { $this->_send_data('RCPT TO:<'.$data.'> NOTIFY=SUCCESS,DELAY,FAILURE ORCPT=rfc822;'.$data); } else { $this->_send_data('RCPT TO:<'.$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.': '.$reply.'</pre>'; if ( (int) substr($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 * * @return bool */ protected function _smtp_authenticate() { if ( ! $this->_smtp_auth) { return TRUE; } if ($this->smtp_user === '' && $this->smtp_pass === '') { $this->_set_error_message('lang:email_no_smtp_unpw'); return FALSE; } $this->_send_data('AUTH LOGIN'); $reply = $this->_get_smtp_data(); if (strpos($reply, '334') !== 0) { $this->_set_error_message('lang:email_failed_smtp_login', $reply); return FALSE; } $this->_send_data(base64_encode($this->smtp_user)); $reply = $this->_get_smtp_data(); if (strpos($reply, '334') !== 0) { $this->_set_error_message('lang:email_smtp_auth_un', $reply); return FALSE; } $this->_send_data(base64_encode($this->smtp_pass)); $reply = $this->_get_smtp_data(); if (strpos($reply, '235') !== 0) { $this->_set_error_message('lang:email_smtp_auth_pw', $reply); return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Send SMTP data * * @return bool */ protected function _send_data($data) { if ( ! fwrite($this->_smtp_connect, $data . $this->newline)) { $this->_set_error_message('lang:email_smtp_data_failure', $data); return FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Get SMTP data * * @return string */ protected function _get_smtp_data() { $data = ''; while ($str = fgets($this->_smtp_connect, 512)) { $data .= $str; if ($str[3] === ' ') { break; } } return $data; } // -------------------------------------------------------------------- /** * Get Hostname * * @return string */ protected function _get_hostname() { return isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain'; } // -------------------------------------------------------------------- /** * Get IP * * @return string */ protected function _get_ip() { if ($this->_IP !== FALSE) { return $this->_IP; } $cip = ( ! empty($_SERVER['HTTP_CLIENT_IP'])) ? $_SERVER['HTTP_CLIENT_IP'] : FALSE; $rip = ( ! empty($_SERVER['REMOTE_ADDR'])) ? $_SERVER['REMOTE_ADDR'] : FALSE; if ($cip) $this->_IP = $cip; elseif ($rip) $this->_IP = $rip; else { $fip = ( ! empty($_SERVER['HTTP_X_FORWARDED_FOR'])) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : FALSE; if ($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'; } return $this->_IP; } // -------------------------------------------------------------------- /** * Get Debug Message * * @return string */ public function print_debugger() { $msg = ''; if (count($this->_debug_msg) > 0) { foreach ($this->_debug_msg as $val) { $msg .= $val; } } return $msg.'<pre>'.$this->_header_str."\n".htmlspecialchars($this->_subject)."\n".htmlspecialchars($this->_finalbody).'</pre>'; } // -------------------------------------------------------------------- /** * Set Message * * @param string * @return void */ protected function _set_error_message($msg, $val = '') { $CI =& get_instance(); $CI->lang->load('email'); if (substr($msg, 0, 5) !== 'lang:' OR 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, $line).'<br />'; } } // -------------------------------------------------------------------- /** * Mime Types * * @param string * @return string */ protected function _mime_types($ext = '') { static $mimes; $ext = strtolower($ext); if ( ! is_array($mimes)) { $mimes =& get_mimes(); } if (isset($mimes[$ext])) { return is_array($mimes[$ext]) ? current($mimes[$ext]) : $mimes[$ext]; } return 'application/x-unknown-content-type'; } } /* End of file Email.php */ /* Location: ./system/libraries/Email.php */