<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Copyright (C) 2006-2009 Dan Fuhry
*
* This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
*
* The "emailer" class was ported from phpBB 2.0. Copyright (C) 2002-2006 phpBB Group. phpBB is licensed under the GPLv2.
*/
//
// The emailer class has support for attaching files, that isn't implemented
// in the 2.0 release but we can probable find some way of using it in a future
// release
//
class emailer
{
var $msg, $subject, $extra_headers;
var $addresses, $reply_to, $from;
var $use_smtp;
var $tpl_msg;
function __construct($use_smtp)
{
$this->reset();
$this->use_smtp = $use_smtp;
$this->reply_to = $this->from = '';
}
// Resets all the data (address, template file, etc etc to default
function reset()
{
$this->addresses = array();
$this->vars = $this->msg = $this->extra_headers = '';
}
// Sets an email address to send to
function email_address($address)
{
$this->addresses['to'] = trim($address);
}
function cc($address)
{
$this->addresses['cc'][] = trim($address);
}
function bcc($address)
{
$this->addresses['bcc'][] = trim($address);
}
function replyto($address)
{
$this->reply_to = trim($address);
}
function from($address)
{
$this->from = trim($address);
}
// set up subject for mail
function set_subject($subject = '')
{
$this->subject = trim(preg_replace('#[\n\r]+#s', '', $subject));
}
// set up extra mail headers
function extra_headers($headers)
{
$this->extra_headers .= trim($headers) . "\n";
}
function use_template($template_code)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$this->tpl_msg = $template->makeParserText($template_code);
return true;
}
// assign variables
function assign_vars($vars)
{
if ( is_object($this->tpl_msg) )
{
$this->tpl_msg->assign_vars($vars);
}
else
{
die_friendly(GENERAL_ERROR, 'Can\'t set vars, the template is not set');
}
}
// Send the mail out to the recipients set previously in var $this->address
function send()
{
global $db, $session, $paths, $template, $plugins; // Common objects
$this->msg = $this->tpl_msg->run();
if ( empty($this->msg) )
{
die_friendly(GENERAL_ERROR, 'Template for e-mail message returned a blank');
}
// We now try and pull a subject from the email body ... if it exists,
// do this here because the subject may contain a variable
$drop_header = '';
$match = array();
if (preg_match('#^(Subject:(.*?))$#m', $this->msg, $match))
{
$this->subject = (trim($match[2]) != '') ? trim($match[2]) : (($this->subject != '') ? $this->subject : 'No Subject');
$drop_header .= '[\r\n]*?' . preg_quote($match[1], '#');
}
else
{
$this->subject = (($this->subject != '') ? $this->subject : 'No Subject');
}
if (preg_match('#^(Charset:(.*?))$#m', $this->msg, $match))
{
$this->encoding = (trim($match[2]) != '') ? trim($match[2]) : trim('iso-8859-1');
$drop_header .= '[\r\n]*?' . preg_quote($match[1], '#');
}
else
{
$this->encoding = trim('iso-8859-1');
}
if ($drop_header != '')
{
$this->msg = trim(preg_replace('#' . $drop_header . '#s', '', $this->msg));
}
$to = $this->addresses['to'];
$cc = (count($this->addresses['cc'])) ? implode(', ', $this->addresses['cc']) : '';
$bcc = (count($this->addresses['bcc'])) ? implode(', ', $this->addresses['bcc']) : '';
// Build header
$this->extra_headers = (($this->reply_to != '') ? "Reply-to: $this->reply_to\n" : '') .
(($this->from != '') ? "From: $this->from\n" : "From: " . getConfig('contact_email') . "\n") .
"Return-Path: " . getConfig('contact_email') .
"\nMessage-ID: <" . md5(uniqid(time())) . "@" . $_SERVER['SERVER_NAME'] . ">\nMIME-Version: 1.0\nContent-type: text/plain; charset=" . $this->encoding .
"\nContent-transfer-encoding: 8bit\nDate: " . enano_date('r', time()) .
"\nX-Priority: 3\nX-MSMail-Priority: Normal\nX-Mailer: PHP\nX-MimeOLE: Produced By Enano CMS\n" .
$this->extra_headers .
(($cc != '') ? "Cc: $cc\n" : '') .
(($bcc != '') ? "Bcc: $bcc\n" : '');
//die('<pre>'.print_r($this,true).'</pre>');
// Send message ... removed $this->encode() from subject for time being
if ( $this->use_smtp )
{
$result = smtp_send_email_core($to, $this->subject, $this->msg, $this->extra_headers);
}
else
{
$empty_to_header = ($to == '') ? TRUE : FALSE;
$to = ($to == '') ? ((getConfig('sendmail_fix')=='1') ? ' ' : 'Undisclosed-recipients:;') : $to;
$result = @mail($to, $this->subject, preg_replace("#(?<!\r)\n#s", "\n", $this->msg), $this->extra_headers);
if (!$result && !getConfig('sendmail_fix') && $empty_to_header)
{
$to = ' ';
setConfig('sendmail_fix', '1');
$result = @mail($to, $this->subject, preg_replace("#(?<!\r)\n#s", "\n", $this->msg), $this->extra_headers);
}
}
// Did it work?
if (!$result || ( $this->use_smtp && $result != 'success' ))
{
die_friendly(GENERAL_ERROR, 'Failed sending email :: ' . (($this->use_smtp) ? 'SMTP' : 'PHP') . ' :: ' . $result);
}
return true;
}
// Encodes the given string for proper display for this encoding ... nabbed
// from php.net and modified. There is an alternative encoding method which
// may produce lesd output but it's questionable as to its worth in this
// scenario IMO
function encode($str)
{
if ($this->encoding == '')
{
return $str;
}
// define start delimimter, end delimiter and spacer
$end = "?=";
$start = "=?$this->encoding?B?";
$spacer = "$end\r\n $start";
// determine length of encoded text within chunks and ensure length is even
$length = 75 - strlen($start) - strlen($end);
$length = floor($length / 2) * 2;
// encode the string and split it into chunks with spacers after each chunk
$str = chunk_split(base64_encode($str), $length, $spacer);
// remove trailing spacer and add start and end delimiters
$str = preg_replace('#' . preg_quote($spacer, '#') . '$#', '', $str);
return $start . $str . $end;
}
//
// Attach files via MIME.
//
function attachFile($filename, $mimetype = "application/octet-stream", $szFromAddress, $szFilenameToDisplay)
{
global $lang;
$mime_boundary = "--==================_846811060==_";
$this->msg = '--' . $mime_boundary . "\nContent-Type: text/plain;\n\tcharset=".'"' . $lang['ENCODING'] . '"'."\n\n" . $this->msg;
if ($mime_filename)
{
$filename = $mime_filename;
$encoded = $this->encode_file($filename);
}
$fd = fopen($filename, "r");
$contents = fread($fd, filesize($filename));
$this->mimeOut = "--" . $mime_boundary . "\n";
$this->mimeOut .= "Content-Type: " . $mimetype . ";\n\tname=".'"'."$szFilenameToDisplay".'"'."\n";
$this->mimeOut .= "Content-Transfer-Encoding: quoted-printable\n";
$this->mimeOut .= "Content-Disposition: attachment;\n\tfilename=".'"'."$szFilenameToDisplay".'"'."\n\n";
if ( $mimetype == "message/rfc822" )
{
$this->mimeOut .= "From: ".$szFromAddress."\n";
$this->mimeOut .= "To: ".$this->emailAddress."\n";
$this->mimeOut .= "Date: ".enano_date('r') . " UT\n";
$this->mimeOut .= "Reply-To:".$szFromAddress."\n";
$this->mimeOut .= "Subject: ".$this->mailSubject."\n";
$this->mimeOut .= "X-Mailer: PHP/".phpversion()."\n";
$this->mimeOut .= "MIME-Version: 1.0\n";
}
$this->mimeOut .= $contents."\n";
$this->mimeOut .= "--" . $mime_boundary . "--" . "\n";
return $out;
// added -- to notify email client attachment is done
}
function getMimeHeaders($filename, $mime_filename="")
{
$mime_boundary = "--==================_846811060==_";
if ($mime_filename)
{
$filename = $mime_filename;
}
$out = "MIME-Version: 1.0\n";
$out .= "Content-Type: multipart/mixed;\n\tboundary=".'"'."$mime_boundary".'"'."\n\n";
$out .= "This message is in MIME format. Since your mail reader does not understand\n";
$out .= "this format, some or all of this message may not be legible.";
return $out;
}
//
// Split string by RFC 2045 semantics (76 chars per line, end with \r\n).
//
function myChunkSplit($str)
{
$stmp = $str;
$len = strlen($stmp);
$out = "";
while ($len > 0)
{
if ($len >= 76)
{
$out .= substr($stmp, 0, 76) . "\r\n";
$stmp = substr($stmp, 76);
$len = $len - 76;
}
else
{
$out .= $stmp . "\r\n";
$stmp = "";
$len = 0;
}
}
return $out;
}
//
// Split the specified file up into a string and return it
//
function encode_file($sourcefile)
{
if (is_readable(@realpath($sourcefile)))
{
$fd = fopen($sourcefile, "r");
$contents = fread($fd, filesize($sourcefile));
$encoded = $this->myChunkSplit(base64_encode($contents));
fclose($fd);
}
return $encoded;
}
} // class emailer
/**
* This code is copyright (C) 2004 Jim Tucek
* PHP version ported from Javascript by Dan Fuhry
* All rights reserved.
* @link http://www.jracademy.com/~jtucek/email/
* @license GNU General Public License v2, permission obtained specifically for Enano
*/
class EmailEncryptor
{
var $primes = Array(2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199);
function __construct()
{
$i = 0;
$this->p = 0;
$this->q = 0;
while($this->p * $this->q < 255 || $this->p == $this->q)
{
$this->p = $this->primes[mt_rand(0, sizeof($this->primes)-1)];
$this->q = $this->primes[mt_rand(0, sizeof($this->primes)-1)];
}
}
function testAll() {
$size = sizeof($this->primes);
$allCharacters = "";
for($c = 33; $c <= 126; $c++)
$allCharacters = $allCharacters . $this->fromCharCode($c);
for($i = 0; $i < $size - 1; $i++) {
for($j = $i + 1; $j < $size; $j++) {
$this->p = $this->primes[$i];
$this->q = $this->primes[$j];
if($this->p*$this->q < 255)
break;
$k = $this->makeKey($allCharacters);
$encrypted = $k['X'];
$decrypted = $this->goForth($encrypted,$this->p*$this->q,$k['D']);
if($decrypted != $allCharacters) {
die('Test failed');
}
}
}
return 'GOOD';
}
function charCodeAt($str, $i)
{
return ord(substr($str, $i, 1));
}
function fromCharCode($str)
{
return chr($str);
}
function MakeArray($l) {
$a = Array();
$i=0;
do {
$a[$i]=null;
$i++;
} while($i < $l);
return $a;
}
function makeKey($addr,$subj = '',$body = '') {
$value = "";
if($this->p * $this->q < 255)
{
return("P*Q must be greater than 255! P*Q = " . $this->p*$this->q);
}
elseif($this->p == $this->q)
{
return("P cannot be equal to Q!");
}
elseif($addr == "")
{
return("You must enter an address to encrypt!");
}
else
{
// Make the key
$c = 0;
$z = ($this->p-1)*($this->q-1);
$e = 0;
$n = $this->p*$this->q;
$d = 0;
do {
$e++;
$d = $this->getKey($this->primes[$e],$z);
} while($d==1);
$e = $this->primes[$e];
// Turn the string into an array of numbers < 255
$m = $addr;
$emailLength = strlen($m);
$justEmail = "";
$sep = ( strstr('?', $m) ) ? '&' : '?';
if($subj != "") {
$m = $m . "{$sep}subject=" . $subj;
}
$sep = ( strstr($m, '?') ) ? '&' : '?';
if($body != "") {
$m = $m . "{$sep}body=" . $body;
}
$length = strlen($m);
$theString = $this->MakeArray($length);
for($i = 0; $i < $length; $i++) {
$theString[$i] = $this->charCodeAt($m, $i);
}
// Encrypt each of the numbers
$theCode = $this->MakeArray($length);
$c = "";
$temp = 0;
for($i = 0; $i < $length; $i++) {
if($i != 0)
$c .= " ";
$temp = $this->myMod($theString[$i],$e,$n);
$theCode[$i] = $temp;
$c .= $temp;
if($i == $emailLength - 1)
$justEmail = $c;
}
}
return Array('X'=>$justEmail, 'N'=>$n, 'D'=>$d, 'E'=>$e, 'C'=>$c, 'M'=>$m);
}
// Finds x^e % y for large values of (x^e)
function myMod($x,$e,$y) {
if ($e % 2 == 0) {
$answer = 1;
for($i = 1; $i <= e/2; $i++) {
$temp = ($x*$x) % $y;
$answer = ($temp*$answer) % $y;
}
} else {
$answer = $x;
for($i = 1; $i <= $e/2; $i++) {
$temp = ($x*$x) % $y;
$answer = ($temp*$answer) % $y;
}
}
return $answer;
}
function getKey($e,$z) {
$A = 1;
$B = 0;
$C = $z;
$F = 0;
$G = 1;
$bar = $e;
// Euclid's Algorithm:
while ($bar != 0) {
$foo = floor($C/$bar);
$K = $A - $foo * $F;
$L = $B - $foo * $G;
$M = $C - $foo * $bar;
$A = $F;
$B = $G;
$C = $bar;
$F = $K;
$G = $L;
$bar = $M;
}
if ($B < 0)
{
return ($B + $z);
}
else
{
return ($B);
}
}
function goForth($c,$n,$d) {
$c .= " ";
$length = strlen($c);
$number = 0;
$bar = 0;
$answer = "";
for($i = 0; $i < $length; $i++) {
$number = 0;
$bar = 0;
while($this->charCodeAt($c, $i) != 32) {
$number = $number * 10;
$number = $number + $this->charCodeAt($c, $i)-48;
$i++;
}
$answer .= $this->fromCharCode($this->decrypt($number,$n,$d));
}
return $answer;
}
function decrypt($c,$n,$d) {
// Split exponents up
if ($d % 2== 0) {
$bar = 1;
for($i = 1; $i <= $d/2; $i++) {
$foo = ($c*$c) % $n;
$bar = ($foo*$bar) % $n;
}
} else {
$bar = $c;
for($i = 1; $i <= $d/2; $i++) {
$foo = ($c*$c) % $n;
$bar = ($foo*$bar) % $n;
}
}
return $bar;
}
function writeOptions() {
$size = sizeof($this->primes);
for($i = 0; $i < $size; $i++)
echo("<option value=".'"'.""+$this->primes[$i]+"".'"'.">"+$this->primes[$i]+"</option>");
}
function jscode() {
return "<script type='text/javascript'>\n// <![CDATA[\nfunction dive(absorption,alchemy,friendship) { absorption += ' '; var file = absorption.length; var sand = 0; var closet = ''; for(var assistant = 0; assistant < file; assistant++) { sand = 0; while(absorption.charCodeAt(assistant) != 32) { sand = sand * 10; sand = sand + absorption.charCodeAt(assistant)-48; assistant++; } closet += String.fromCharCode(say(sand,alchemy,friendship)); } parent.location = 'm'+'a'+'i'+'l'+'t'+'o'+':'+closet; }; function forbid(landing,atmosphere,aviation) { landing += ' '; var kiss = landing.length; var coordinated = 0; for(var day = 0; day < kiss; day++) { coordinated = 0; while(landing.charCodeAt(day) != 32) { coordinated = coordinated * 10; coordinated = coordinated + landing.charCodeAt(day)-48; day++; } document.write(String.fromCharCode(say(coordinated,atmosphere,aviation))); }; }; function say(scene,photograph,fraction) { if (fraction % 2 == 0) { integrity = 1; for(var male = 1; male <= fraction/2; male++) { moon = (scene*scene) % photograph; integrity = (moon*integrity) % photograph; } } else { integrity = scene; for(var night = 1; night <= fraction/2; night++) { moon = (scene*scene) % photograph; integrity = (moon*integrity) % photograph; }; }; return integrity; };\n// ]]>\n</script>";
}
/**
* Wrapper - spits out ready-to-use HTML
* @param string $address The e-mail address
* @param string $subject The subject of the e-mail. OPTIONAL.
* @param string $body The main content of the e-mail. OPTIONAL and doesn't work in many e-mail clients.
* @param string $text The text to be shown on the e-mail link. Leave as false to make the e-mail address be shown in the link (but still fully encrypted)
*/
function encryptEmail($address, $subject = '', $body = '', $text = false)
{
$key = $this->makeKey($address, $subject, $body);
if ( $text )
{
if(preg_match('/^(mailto:)?(?:[\w\d]+\.?)+@(?:(?:[\w\d]\-?)+\.)+\w{2,4}$/', $text))
{
// This is a mailto link and normal obfuscation should be used
$text = false;
}
}
$text1 = ( $text ) ? '<script type="text/javascript">document.write(unescape(\''.rawurlencode($text).'\'));</script>' : '<script type=\'text/javascript\'>forbid("'.$key['X'].'",'.$key['N'].','.$key['D'].')</script>';
$text2 = ( $text ) ? "$text <".$this->obfuscate_text($this->mask_address($address)).">" : $this->obfuscate_text($this->mask_address($address));
$email = '<a href="#" onclick=\'dive("'.$key['C'].'",'.$key['N'].','.$key['D'].'); return false;\' onmouseover="self.status=\'\'; return true;" onmouseout="self.status=\' \'; return true;">'.$text1.'</a><noscript><div style="display: inline">'.$text2.'</div></noscript>';
return $email;
}
/**
* Replace @ symbols with " <AT> " and dots with " <DOT> ".
* @param string $email An e-mail address.
* @return string
*/
function mask_address($email)
{
$at = array(' (AT) ', ' __AT__ ', ' *AT* ', ' [AT] ', ' <AT> ', ' <__AT__> ');
$dot = array(' (DOT) ', ' __DOT__ ', ' *DOT* ', ' [DOT] ', ' <DOT> ', ' <__DOT__> ');
while(strstr($email, '@'))
{
$my_at = $at[ array_rand($at) ];
$email = str_replace_once('@', $my_at, $email);
}
while(strstr($email, '.'))
{
$my_dot = $dot[ array_rand($dot) ];
$email = str_replace_once('.', $my_dot, $email);
}
return $email;
}
/**
* Turn a string of text into hex-encoded HTML entities
* @param string $text the text to encode
* @return string
*/
function obfuscate_text($text)
{
$a = enano_str_split($text, 1);
$s = '';
foreach($a as $k => $c)
{
$ch = (string)dechex(ord($a[$k]));
if(strlen($ch) < 2) $ch = '0' . $ch;
$s .= '&#x'.$ch.';';
}
return $s;
}
}
?>