Initial commit
This commit is contained in:
易焱
@@ -0,0 +1,90 @@
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<?php
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/* ------------------------------------------------------------------------ */
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/* EasyPeasyICS
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/* ------------------------------------------------------------------------ */
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/* Manuel Reinhard, manu@sprain.ch
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/* Twitter: @sprain
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/* Web: www.sprain.ch
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/*
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/* Built with inspiration by
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/" http://stackoverflow.com/questions/1463480/how-can-i-use-php-to-dynamically-publish-an-ical-file-to-be-read-by-google-calend/1464355#1464355
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/* ------------------------------------------------------------------------ */
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/* History:
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/* 2010/12/17 - Manuel Reinhard - when it all started
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/* ------------------------------------------------------------------------ */
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class EasyPeasyICS {
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protected $calendarName;
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protected $events = array();
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/**
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* Constructor
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* @param string $calendarName
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*/
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public function __construct($calendarName=""){
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$this->calendarName = $calendarName;
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}//function
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/**
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* Add event to calendar
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* @param string $calendarName
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*/
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public function addEvent($start, $end, $summary="", $description="", $url=""){
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$this->events[] = array(
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"start" => $start,
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"end" => $end,
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"summary" => $summary,
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"description" => $description,
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"url" => $url
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);
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}//function
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public function render($output = true){
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//start Variable
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$ics = "";
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//Add header
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$ics .= "BEGIN:VCALENDAR
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METHOD:PUBLISH
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VERSION:2.0
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X-WR-CALNAME:".$this->calendarName."
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PRODID:-//hacksw/handcal//NONSGML v1.0//EN";
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//Add events
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foreach($this->events as $event){
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$ics .= "
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BEGIN:VEVENT
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UID:". md5(uniqid(mt_rand(), true)) ."@EasyPeasyICS.php
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DTSTAMP:" . gmdate('Ymd').'T'. gmdate('His') . "Z
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DTSTART:".gmdate('Ymd', $event["start"])."T".gmdate('His', $event["start"])."Z
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DTEND:".gmdate('Ymd', $event["end"])."T".gmdate('His', $event["end"])."Z
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SUMMARY:".str_replace("\n", "\\n", $event['summary'])."
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DESCRIPTION:".str_replace("\n", "\\n", $event['description'])."
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URL;VALUE=URI:".$event['url']."
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END:VEVENT";
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}//foreach
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//Footer
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$ics .= "
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END:VCALENDAR";
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if ($output) {
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//Output
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header('Content-type: text/calendar; charset=utf-8');
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header('Content-Disposition: inline; filename='.$this->calendarName.'.ics');
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echo $ics;
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} else {
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return $ics;
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}
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}//function
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}//class
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@@ -0,0 +1,17 @@
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#PHPMailer Extras
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These classes provide optional additional functions to PHPMailer.
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These are not loaded by the PHPMailer autoloader, so in some cases you may need to `require` them yourself before using them.
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##EasyPeasyICS
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This class was originally written by Manuel Reinhard and provides a simple means of generating ICS/vCal files that are used in sending calendar events. PHPMailer does not use it directly, but you can use it to generate content appropriate for placing in the `Ical` property of PHPMailer. The PHPMailer project is now its official home as Manuel has given permission for that and is no longer maintaining it himself.
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##htmlfilter
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This class by Konstantin Riabitsev and Jim Jagielski implements HTML filtering to remove potentially malicious tags, such as `<script>` or `onclick=` attributes that can result in XSS attacks. This is a simple filter and is not as comprehensive as [HTMLawed](http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/) or [HTMLPurifier](http://htmlpurifier.org), but it's easier to use and considerably better than nothing! PHPMailer does not use it directly, but you may want to apply it to user-supplied HTML before using it as a message body.
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##NTLM_SASL_client
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This class by Manuel Lemos (bundled with permission) adds the ability to authenticate with Microsoft Windows mail servers that use NTLM-based authentication. It is used by PHPMailer if you send via SMTP and set the `AuthType` property to `NTLM`; you will also need to use the `Realm` and `Workstation` properties. The original source is [here](http://www.phpclasses.org/browse/file/7495.html).
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@@ -0,0 +1,874 @@
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<?php
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/**
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* htmlfilter.inc
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* ---------------
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* This set of functions allows you to filter html in order to remove
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* any malicious tags from it. Useful in cases when you need to filter
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* user input for any cross-site-scripting attempts.
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*
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* Copyright (C) 2002-2004 by Duke University
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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* @Author Konstantin Riabitsev <icon@linux.duke.edu>
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* @Author Jim Jagielski <jim@jaguNET.com / jimjag@gmail.com>
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*/
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/**
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* This function returns the final tag out of the tag name, an array
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* of attributes, and the type of the tag. This function is called by
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* tln_sanitize internally.
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*
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* @param string $tagname the name of the tag.
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* @param array $attary the array of attributes and their values
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* @param integer $tagtype The type of the tag (see in comments).
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* @return string A string with the final tag representation.
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*/
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function tln_tagprint($tagname, $attary, $tagtype)
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{
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if ($tagtype == 2) {
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$fulltag = '</' . $tagname . '>';
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} else {
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$fulltag = '<' . $tagname;
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if (is_array($attary) && sizeof($attary)) {
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$atts = array();
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while (list($attname, $attvalue) = each($attary)) {
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array_push($atts, "$attname=$attvalue");
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}
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$fulltag .= ' ' . join(' ', $atts);
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}
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if ($tagtype == 3) {
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$fulltag .= ' /';
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}
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$fulltag .= '>';
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}
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return $fulltag;
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}
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/**
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* A small helper function to use with array_walk. Modifies a by-ref
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* value and makes it lowercase.
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*
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* @param string $val a value passed by-ref.
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* @return void since it modifies a by-ref value.
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*/
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function tln_casenormalize(&$val)
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{
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$val = strtolower($val);
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}
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/**
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* This function skips any whitespace from the current position within
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* a string and to the next non-whitespace value.
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*
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* @param string $body the string
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* @param integer $offset the offset within the string where we should start
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* looking for the next non-whitespace character.
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* @return integer the location within the $body where the next
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* non-whitespace char is located.
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*/
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function tln_skipspace($body, $offset)
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{
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preg_match('/^(\s*)/s', substr($body, $offset), $matches);
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if (sizeof($matches[1])) {
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$count = strlen($matches[1]);
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$offset += $count;
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}
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return $offset;
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}
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/**
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* This function looks for the next character within a string. It's
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* really just a glorified "strpos", except it catches the failures
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* nicely.
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*
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* @param string $body The string to look for needle in.
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* @param integer $offset Start looking from this position.
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* @param string $needle The character/string to look for.
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* @return integer location of the next occurrence of the needle, or
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* strlen($body) if needle wasn't found.
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*/
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function tln_findnxstr($body, $offset, $needle)
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{
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$pos = strpos($body, $needle, $offset);
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if ($pos === false) {
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$pos = strlen($body);
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}
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return $pos;
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}
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/**
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* This function takes a PCRE-style regexp and tries to match it
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* within the string.
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*
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* @param string $body The string to look for needle in.
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* @param integer $offset Start looking from here.
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* @param string $reg A PCRE-style regex to match.
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* @return array|boolean Returns a false if no matches found, or an array
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* with the following members:
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* - integer with the location of the match within $body
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* - string with whatever content between offset and the match
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* - string with whatever it is we matched
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*/
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function tln_findnxreg($body, $offset, $reg)
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{
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$matches = array();
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$retarr = array();
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$preg_rule = '%^(.*?)(' . $reg . ')%s';
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preg_match($preg_rule, substr($body, $offset), $matches);
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if (!isset($matches[0])) {
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$retarr = false;
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} else {
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$retarr[0] = $offset + strlen($matches[1]);
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$retarr[1] = $matches[1];
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$retarr[2] = $matches[2];
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}
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return $retarr;
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}
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/**
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* This function looks for the next tag.
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*
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* @param string $body String where to look for the next tag.
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* @param integer $offset Start looking from here.
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* @return array|boolean false if no more tags exist in the body, or
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* an array with the following members:
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* - string with the name of the tag
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* - array with attributes and their values
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* - integer with tag type (1, 2, or 3)
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* - integer where the tag starts (starting "<")
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* - integer where the tag ends (ending ">")
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* first three members will be false, if the tag is invalid.
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*/
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function tln_getnxtag($body, $offset)
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{
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if ($offset > strlen($body)) {
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return false;
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}
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$lt = tln_findnxstr($body, $offset, '<');
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if ($lt == strlen($body)) {
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return false;
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}
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/**
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* We are here:
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* blah blah <tag attribute="value">
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* \---------^
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*/
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$pos = tln_skipspace($body, $lt + 1);
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if ($pos >= strlen($body)) {
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return array(false, false, false, $lt, strlen($body));
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}
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/**
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* There are 3 kinds of tags:
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* 1. Opening tag, e.g.:
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* <a href="blah">
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* 2. Closing tag, e.g.:
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* </a>
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* 3. XHTML-style content-less tag, e.g.:
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* <img src="blah"/>
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*/
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switch (substr($body, $pos, 1)) {
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case '/':
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$tagtype = 2;
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$pos++;
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break;
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case '!':
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/**
|
||||
* A comment or an SGML declaration.
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*/
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if (substr($body, $pos + 1, 2) == '--') {
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$gt = strpos($body, '-->', $pos);
|
||||
if ($gt === false) {
|
||||
$gt = strlen($body);
|
||||
} else {
|
||||
$gt += 2;
|
||||
}
|
||||
return array(false, false, false, $lt, $gt);
|
||||
} else {
|
||||
$gt = tln_findnxstr($body, $pos, '>');
|
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return array(false, false, false, $lt, $gt);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
/**
|
||||
* Assume tagtype 1 for now. If it's type 3, we'll switch values
|
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* later.
|
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*/
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$tagtype = 1;
|
||||
break;
|
||||
}
|
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|
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/**
|
||||
* Look for next [\W-_], which will indicate the end of the tag name.
|
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*/
|
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$regary = tln_findnxreg($body, $pos, '[^\w\-_]');
|
||||
if ($regary == false) {
|
||||
return array(false, false, false, $lt, strlen($body));
|
||||
}
|
||||
list($pos, $tagname, $match) = $regary;
|
||||
$tagname = strtolower($tagname);
|
||||
|
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/**
|
||||
* $match can be either of these:
|
||||
* '>' indicating the end of the tag entirely.
|
||||
* '\s' indicating the end of the tag name.
|
||||
* '/' indicating that this is type-3 xhtml tag.
|
||||
*
|
||||
* Whatever else we find there indicates an invalid tag.
|
||||
*/
|
||||
switch ($match) {
|
||||
case '/':
|
||||
/**
|
||||
* This is an xhtml-style tag with a closing / at the
|
||||
* end, like so: <img src="blah"/>. Check if it's followed
|
||||
* by the closing bracket. If not, then this tag is invalid
|
||||
*/
|
||||
if (substr($body, $pos, 2) == '/>') {
|
||||
$pos++;
|
||||
$tagtype = 3;
|
||||
} else {
|
||||
$gt = tln_findnxstr($body, $pos, '>');
|
||||
$retary = array(false, false, false, $lt, $gt);
|
||||
return $retary;
|
||||
}
|
||||
//intentional fall-through
|
||||
case '>':
|
||||
return array($tagname, false, $tagtype, $lt, $pos);
|
||||
break;
|
||||
default:
|
||||
/**
|
||||
* Check if it's whitespace
|
||||
*/
|
||||
if (preg_match('/\s/', $match)) {
|
||||
} else {
|
||||
/**
|
||||
* This is an invalid tag! Look for the next closing ">".
|
||||
*/
|
||||
$gt = tln_findnxstr($body, $lt, '>');
|
||||
return array(false, false, false, $lt, $gt);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* At this point we're here:
|
||||
* <tagname attribute='blah'>
|
||||
* \-------^
|
||||
*
|
||||
* At this point we loop in order to find all attributes.
|
||||
*/
|
||||
$attary = array();
|
||||
|
||||
while ($pos <= strlen($body)) {
|
||||
$pos = tln_skipspace($body, $pos);
|
||||
if ($pos == strlen($body)) {
|
||||
/**
|
||||
* Non-closed tag.
|
||||
*/
|
||||
return array(false, false, false, $lt, $pos);
|
||||
}
|
||||
/**
|
||||
* See if we arrived at a ">" or "/>", which means that we reached
|
||||
* the end of the tag.
|
||||
*/
|
||||
$matches = array();
|
||||
preg_match('%^(\s*)(>|/>)%s', substr($body, $pos), $matches);
|
||||
if (isset($matches[0]) && $matches[0]) {
|
||||
/**
|
||||
* Yep. So we did.
|
||||
*/
|
||||
$pos += strlen($matches[1]);
|
||||
if ($matches[2] == '/>') {
|
||||
$tagtype = 3;
|
||||
$pos++;
|
||||
}
|
||||
return array($tagname, $attary, $tagtype, $lt, $pos);
|
||||
}
|
||||
|
||||
/**
|
||||
* There are several types of attributes, with optional
|
||||
* [:space:] between members.
|
||||
* Type 1:
|
||||
* attrname[:space:]=[:space:]'CDATA'
|
||||
* Type 2:
|
||||
* attrname[:space:]=[:space:]"CDATA"
|
||||
* Type 3:
|
||||
* attr[:space:]=[:space:]CDATA
|
||||
* Type 4:
|
||||
* attrname
|
||||
*
|
||||
* We leave types 1 and 2 the same, type 3 we check for
|
||||
* '"' and convert to """ if needed, then wrap in
|
||||
* double quotes. Type 4 we convert into:
|
||||
* attrname="yes".
|
||||
*/
|
||||
$regary = tln_findnxreg($body, $pos, '[^\w\-_]');
|
||||
if ($regary == false) {
|
||||
/**
|
||||
* Looks like body ended before the end of tag.
|
||||
*/
|
||||
return array(false, false, false, $lt, strlen($body));
|
||||
}
|
||||
list($pos, $attname, $match) = $regary;
|
||||
$attname = strtolower($attname);
|
||||
/**
|
||||
* We arrived at the end of attribute name. Several things possible
|
||||
* here:
|
||||
* '>' means the end of the tag and this is attribute type 4
|
||||
* '/' if followed by '>' means the same thing as above
|
||||
* '\s' means a lot of things -- look what it's followed by.
|
||||
* anything else means the attribute is invalid.
|
||||
*/
|
||||
switch ($match) {
|
||||
case '/':
|
||||
/**
|
||||
* This is an xhtml-style tag with a closing / at the
|
||||
* end, like so: <img src="blah"/>. Check if it's followed
|
||||
* by the closing bracket. If not, then this tag is invalid
|
||||
*/
|
||||
if (substr($body, $pos, 2) == '/>') {
|
||||
$pos++;
|
||||
$tagtype = 3;
|
||||
} else {
|
||||
$gt = tln_findnxstr($body, $pos, '>');
|
||||
$retary = array(false, false, false, $lt, $gt);
|
||||
return $retary;
|
||||
}
|
||||
//intentional fall-through
|
||||
case '>':
|
||||
$attary{$attname} = '"yes"';
|
||||
return array($tagname, $attary, $tagtype, $lt, $pos);
|
||||
break;
|
||||
default:
|
||||
/**
|
||||
* Skip whitespace and see what we arrive at.
|
||||
*/
|
||||
$pos = tln_skipspace($body, $pos);
|
||||
$char = substr($body, $pos, 1);
|
||||
/**
|
||||
* Two things are valid here:
|
||||
* '=' means this is attribute type 1 2 or 3.
|
||||
* \w means this was attribute type 4.
|
||||
* anything else we ignore and re-loop. End of tag and
|
||||
* invalid stuff will be caught by our checks at the beginning
|
||||
* of the loop.
|
||||
*/
|
||||
if ($char == '=') {
|
||||
$pos++;
|
||||
$pos = tln_skipspace($body, $pos);
|
||||
/**
|
||||
* Here are 3 possibilities:
|
||||
* "'" attribute type 1
|
||||
* '"' attribute type 2
|
||||
* everything else is the content of tag type 3
|
||||
*/
|
||||
$quot = substr($body, $pos, 1);
|
||||
if ($quot == '\'') {
|
||||
$regary = tln_findnxreg($body, $pos + 1, '\'');
|
||||
if ($regary == false) {
|
||||
return array(false, false, false, $lt, strlen($body));
|
||||
}
|
||||
list($pos, $attval, $match) = $regary;
|
||||
$pos++;
|
||||
$attary{$attname} = '\'' . $attval . '\'';
|
||||
} else {
|
||||
if ($quot == '"') {
|
||||
$regary = tln_findnxreg($body, $pos + 1, '\"');
|
||||
if ($regary == false) {
|
||||
return array(false, false, false, $lt, strlen($body));
|
||||
}
|
||||
list($pos, $attval, $match) = $regary;
|
||||
$pos++;
|
||||
$attary{$attname} = '"' . $attval . '"';
|
||||
} else {
|
||||
/**
|
||||
* These are hateful. Look for \s, or >.
|
||||
*/
|
||||
$regary = tln_findnxreg($body, $pos, '[\s>]');
|
||||
if ($regary == false) {
|
||||
return array(false, false, false, $lt, strlen($body));
|
||||
}
|
||||
list($pos, $attval, $match) = $regary;
|
||||
/**
|
||||
* If it's ">" it will be caught at the top.
|
||||
*/
|
||||
$attval = preg_replace('/\"/s', '"', $attval);
|
||||
$attary{$attname} = '"' . $attval . '"';
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if (preg_match('|[\w/>]|', $char)) {
|
||||
/**
|
||||
* That was attribute type 4.
|
||||
*/
|
||||
$attary{$attname} = '"yes"';
|
||||
} else {
|
||||
/**
|
||||
* An illegal character. Find next '>' and return.
|
||||
*/
|
||||
$gt = tln_findnxstr($body, $pos, '>');
|
||||
return array(false, false, false, $lt, $gt);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/**
|
||||
* The fact that we got here indicates that the tag end was never
|
||||
* found. Return invalid tag indication so it gets stripped.
|
||||
*/
|
||||
return array(false, false, false, $lt, strlen($body));
|
||||
}
|
||||
|
||||
/**
|
||||
* Translates entities into literal values so they can be checked.
|
||||
*
|
||||
* @param string $attvalue the by-ref value to check.
|
||||
* @param string $regex the regular expression to check against.
|
||||
* @param boolean $hex whether the entites are hexadecimal.
|
||||
* @return boolean True or False depending on whether there were matches.
|
||||
*/
|
||||
function tln_deent(&$attvalue, $regex, $hex = false)
|
||||
{
|
||||
preg_match_all($regex, $attvalue, $matches);
|
||||
if (is_array($matches) && sizeof($matches[0]) > 0) {
|
||||
$repl = array();
|
||||
for ($i = 0; $i < sizeof($matches[0]); $i++) {
|
||||
$numval = $matches[1][$i];
|
||||
if ($hex) {
|
||||
$numval = hexdec($numval);
|
||||
}
|
||||
$repl{$matches[0][$i]} = chr($numval);
|
||||
}
|
||||
$attvalue = strtr($attvalue, $repl);
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This function checks attribute values for entity-encoded values
|
||||
* and returns them translated into 8-bit strings so we can run
|
||||
* checks on them.
|
||||
*
|
||||
* @param string $attvalue A string to run entity check against.
|
||||
* @return Void, modifies a reference value.
|
||||
*/
|
||||
function tln_defang(&$attvalue)
|
||||
{
|
||||
/**
|
||||
* Skip this if there aren't ampersands or backslashes.
|
||||
*/
|
||||
if (strpos($attvalue, '&') === false
|
||||
&& strpos($attvalue, '\\') === false
|
||||
) {
|
||||
return;
|
||||
}
|
||||
do {
|
||||
$m = false;
|
||||
$m = $m || tln_deent($attvalue, '/\�*(\d+);*/s');
|
||||
$m = $m || tln_deent($attvalue, '/\�*((\d|[a-f])+);*/si', true);
|
||||
$m = $m || tln_deent($attvalue, '/\\\\(\d+)/s', true);
|
||||
} while ($m == true);
|
||||
$attvalue = stripslashes($attvalue);
|
||||
}
|
||||
|
||||
/**
|
||||
* Kill any tabs, newlines, or carriage returns. Our friends the
|
||||
* makers of the browser with 95% market value decided that it'd
|
||||
* be funny to make "java[tab]script" be just as good as "javascript".
|
||||
*
|
||||
* @param string $attvalue The attribute value before extraneous spaces removed.
|
||||
* @return Void, modifies a reference value.
|
||||
*/
|
||||
function tln_unspace(&$attvalue)
|
||||
{
|
||||
if (strcspn($attvalue, "\t\r\n\0 ") != strlen($attvalue)) {
|
||||
$attvalue = str_replace(
|
||||
array("\t", "\r", "\n", "\0", " "),
|
||||
array('', '', '', '', ''),
|
||||
$attvalue
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This function runs various checks against the attributes.
|
||||
*
|
||||
* @param string $tagname String with the name of the tag.
|
||||
* @param array $attary Array with all tag attributes.
|
||||
* @param array $rm_attnames See description for tln_sanitize
|
||||
* @param array $bad_attvals See description for tln_sanitize
|
||||
* @param array $add_attr_to_tag See description for tln_sanitize
|
||||
* @return Array with modified attributes.
|
||||
*/
|
||||
function tln_fixatts(
|
||||
$tagname,
|
||||
$attary,
|
||||
$rm_attnames,
|
||||
$bad_attvals,
|
||||
$add_attr_to_tag
|
||||
) {
|
||||
while (list($attname, $attvalue) = each($attary)) {
|
||||
/**
|
||||
* See if this attribute should be removed.
|
||||
*/
|
||||
foreach ($rm_attnames as $matchtag => $matchattrs) {
|
||||
if (preg_match($matchtag, $tagname)) {
|
||||
foreach ($matchattrs as $matchattr) {
|
||||
if (preg_match($matchattr, $attname)) {
|
||||
unset($attary{$attname});
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/**
|
||||
* Remove any backslashes, entities, or extraneous whitespace.
|
||||
*/
|
||||
tln_defang($attvalue);
|
||||
tln_unspace($attvalue);
|
||||
|
||||
/**
|
||||
* Now let's run checks on the attvalues.
|
||||
* I don't expect anyone to comprehend this. If you do,
|
||||
* get in touch with me so I can drive to where you live and
|
||||
* shake your hand personally. :)
|
||||
*/
|
||||
foreach ($bad_attvals as $matchtag => $matchattrs) {
|
||||
if (preg_match($matchtag, $tagname)) {
|
||||
foreach ($matchattrs as $matchattr => $valary) {
|
||||
if (preg_match($matchattr, $attname)) {
|
||||
/**
|
||||
* There are two arrays in valary.
|
||||
* First is matches.
|
||||
* Second one is replacements
|
||||
*/
|
||||
list($valmatch, $valrepl) = $valary;
|
||||
$newvalue = preg_replace($valmatch, $valrepl, $attvalue);
|
||||
if ($newvalue != $attvalue) {
|
||||
$attary{$attname} = $newvalue;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/**
|
||||
* See if we need to append any attributes to this tag.
|
||||
*/
|
||||
foreach ($add_attr_to_tag as $matchtag => $addattary) {
|
||||
if (preg_match($matchtag, $tagname)) {
|
||||
$attary = array_merge($attary, $addattary);
|
||||
}
|
||||
}
|
||||
return $attary;
|
||||
}
|
||||
|
||||
/**
|
||||
*
|
||||
* @param string $body The HTML you wish to filter
|
||||
* @param array $tag_list see description above
|
||||
* @param array $rm_tags_with_content see description above
|
||||
* @param array $self_closing_tags see description above
|
||||
* @param boolean $force_tag_closing see description above
|
||||
* @param array $rm_attnames see description above
|
||||
* @param array $bad_attvals see description above
|
||||
* @param array $add_attr_to_tag see description above
|
||||
* @return string Sanitized html safe to show on your pages.
|
||||
*/
|
||||
function tln_sanitize(
|
||||
$body,
|
||||
$tag_list,
|
||||
$rm_tags_with_content,
|
||||
$self_closing_tags,
|
||||
$force_tag_closing,
|
||||
$rm_attnames,
|
||||
$bad_attvals,
|
||||
$add_attr_to_tag
|
||||
) {
|
||||
/**
|
||||
* Normalize rm_tags and rm_tags_with_content.
|
||||
*/
|
||||
$rm_tags = array_shift($tag_list);
|
||||
@array_walk($tag_list, 'tln_casenormalize');
|
||||
@array_walk($rm_tags_with_content, 'tln_casenormalize');
|
||||
@array_walk($self_closing_tags, 'tln_casenormalize');
|
||||
/**
|
||||
* See if tag_list is of tags to remove or tags to allow.
|
||||
* false means remove these tags
|
||||
* true means allow these tags
|
||||
*/
|
||||
$curpos = 0;
|
||||
$open_tags = array();
|
||||
$trusted = "<!-- begin tln_sanitized html -->\n";
|
||||
$skip_content = false;
|
||||
/**
|
||||
* Take care of netscape's stupid javascript entities like
|
||||
* &{alert('boo')};
|
||||
*/
|
||||
$body = preg_replace('/&(\{.*?\};)/si', '&\\1', $body);
|
||||
while (($curtag = tln_getnxtag($body, $curpos)) != false) {
|
||||
list($tagname, $attary, $tagtype, $lt, $gt) = $curtag;
|
||||
$free_content = substr($body, $curpos, $lt - $curpos);
|
||||
if ($skip_content == false) {
|
||||
$trusted .= $free_content;
|
||||
} else {
|
||||
}
|
||||
if ($tagname != false) {
|
||||
if ($tagtype == 2) {
|
||||
if ($skip_content == $tagname) {
|
||||
/**
|
||||
* Got to the end of tag we needed to remove.
|
||||
*/
|
||||
$tagname = false;
|
||||
$skip_content = false;
|
||||
} else {
|
||||
if ($skip_content == false) {
|
||||
if (isset($open_tags{$tagname}) &&
|
||||
$open_tags{$tagname} > 0
|
||||
) {
|
||||
$open_tags{$tagname}--;
|
||||
} else {
|
||||
$tagname = false;
|
||||
}
|
||||
} else {
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/**
|
||||
* $rm_tags_with_content
|
||||
*/
|
||||
if ($skip_content == false) {
|
||||
/**
|
||||
* See if this is a self-closing type and change
|
||||
* tagtype appropriately.
|
||||
*/
|
||||
if ($tagtype == 1
|
||||
&& in_array($tagname, $self_closing_tags)
|
||||
) {
|
||||
$tagtype = 3;
|
||||
}
|
||||
/**
|
||||
* See if we should skip this tag and any content
|
||||
* inside it.
|
||||
*/
|
||||
if ($tagtype == 1
|
||||
&& in_array($tagname, $rm_tags_with_content)
|
||||
) {
|
||||
$skip_content = $tagname;
|
||||
} else {
|
||||
if (($rm_tags == false
|
||||
&& in_array($tagname, $tag_list)) ||
|
||||
($rm_tags == true
|
||||
&& !in_array($tagname, $tag_list))
|
||||
) {
|
||||
$tagname = false;
|
||||
} else {
|
||||
if ($tagtype == 1) {
|
||||
if (isset($open_tags{$tagname})) {
|
||||
$open_tags{$tagname}++;
|
||||
} else {
|
||||
$open_tags{$tagname} = 1;
|
||||
}
|
||||
}
|
||||
/**
|
||||
* This is where we run other checks.
|
||||
*/
|
||||
if (is_array($attary) && sizeof($attary) > 0) {
|
||||
$attary = tln_fixatts(
|
||||
$tagname,
|
||||
$attary,
|
||||
$rm_attnames,
|
||||
$bad_attvals,
|
||||
$add_attr_to_tag
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
}
|
||||
}
|
||||
if ($tagname != false && $skip_content == false) {
|
||||
$trusted .= tln_tagprint($tagname, $attary, $tagtype);
|
||||
}
|
||||
} else {
|
||||
}
|
||||
$curpos = $gt + 1;
|
||||
}
|
||||
$trusted .= substr($body, $curpos, strlen($body) - $curpos);
|
||||
if ($force_tag_closing == true) {
|
||||
foreach ($open_tags as $tagname => $opentimes) {
|
||||
while ($opentimes > 0) {
|
||||
$trusted .= '</' . $tagname . '>';
|
||||
$opentimes--;
|
||||
}
|
||||
}
|
||||
$trusted .= "\n";
|
||||
}
|
||||
$trusted .= "<!-- end tln_sanitized html -->\n";
|
||||
return $trusted;
|
||||
}
|
||||
|
||||
//
|
||||
// Use the nifty htmlfilter library
|
||||
//
|
||||
|
||||
|
||||
function HTMLFilter($body, $trans_image_path, $block_external_images = false)
|
||||
{
|
||||
|
||||
$tag_list = array(
|
||||
false,
|
||||
"object",
|
||||
"meta",
|
||||
"html",
|
||||
"head",
|
||||
"base",
|
||||
"link",
|
||||
"frame",
|
||||
"iframe",
|
||||
"plaintext",
|
||||
"marquee"
|
||||
);
|
||||
|
||||
$rm_tags_with_content = array(
|
||||
"script",
|
||||
"applet",
|
||||
"embed",
|
||||
"title",
|
||||
"frameset",
|
||||
"xmp",
|
||||
"xml"
|
||||
);
|
||||
|
||||
$self_closing_tags = array(
|
||||
"img",
|
||||
"br",
|
||||
"hr",
|
||||
"input",
|
||||
"outbind"
|
||||
);
|
||||
|
||||
$force_tag_closing = true;
|
||||
|
||||
$rm_attnames = array(
|
||||
"/.*/" =>
|
||||
array(
|
||||
// "/target/i",
|
||||
"/^on.*/i",
|
||||
"/^dynsrc/i",
|
||||
"/^data.*/i",
|
||||
"/^lowsrc.*/i"
|
||||
)
|
||||
);
|
||||
|
||||
$bad_attvals = array(
|
||||
"/.*/" =>
|
||||
array(
|
||||
"/^src|background/i" =>
|
||||
array(
|
||||
array(
|
||||
'/^([\'"])\s*\S+script\s*:.*([\'"])/si',
|
||||
'/^([\'"])\s*mocha\s*:*.*([\'"])/si',
|
||||
'/^([\'"])\s*about\s*:.*([\'"])/si'
|
||||
),
|
||||
array(
|
||||
"\\1$trans_image_path\\2",
|
||||
"\\1$trans_image_path\\2",
|
||||
"\\1$trans_image_path\\2",
|
||||
"\\1$trans_image_path\\2"
|
||||
)
|
||||
),
|
||||
"/^href|action/i" =>
|
||||
array(
|
||||
array(
|
||||
'/^([\'"])\s*\S+script\s*:.*([\'"])/si',
|
||||
'/^([\'"])\s*mocha\s*:*.*([\'"])/si',
|
||||
'/^([\'"])\s*about\s*:.*([\'"])/si'
|
||||
),
|
||||
array(
|
||||
"\\1#\\1",
|
||||
"\\1#\\1",
|
||||
"\\1#\\1",
|
||||
"\\1#\\1"
|
||||
)
|
||||
),
|
||||
"/^style/i" =>
|
||||
array(
|
||||
array(
|
||||
"/expression/i",
|
||||
"/binding/i",
|
||||
"/behaviou*r/i",
|
||||
"/include-source/i",
|
||||
'/position\s*:\s*absolute/i',
|
||||
'/url\s*\(\s*([\'"])\s*\S+script\s*:.*([\'"])\s*\)/si',
|
||||
'/url\s*\(\s*([\'"])\s*mocha\s*:.*([\'"])\s*\)/si',
|
||||
'/url\s*\(\s*([\'"])\s*about\s*:.*([\'"])\s*\)/si',
|
||||
'/(.*)\s*:\s*url\s*\(\s*([\'"]*)\s*\S+script\s*:.*([\'"]*)\s*\)/si'
|
||||
),
|
||||
array(
|
||||
"idiocy",
|
||||
"idiocy",
|
||||
"idiocy",
|
||||
"idiocy",
|
||||
"",
|
||||
"url(\\1#\\1)",
|
||||
"url(\\1#\\1)",
|
||||
"url(\\1#\\1)",
|
||||
"url(\\1#\\1)",
|
||||
"url(\\1#\\1)",
|
||||
"\\1:url(\\2#\\3)"
|
||||
)
|
||||
)
|
||||
)
|
||||
);
|
||||
|
||||
if ($block_external_images) {
|
||||
array_push(
|
||||
$bad_attvals{'/.*/'}{'/^src|background/i'}[0],
|
||||
'/^([\'\"])\s*https*:.*([\'\"])/si'
|
||||
);
|
||||
array_push(
|
||||
$bad_attvals{'/.*/'}{'/^src|background/i'}[1],
|
||||
"\\1$trans_image_path\\1"
|
||||
);
|
||||
array_push(
|
||||
$bad_attvals{'/.*/'}{'/^style/i'}[0],
|
||||
'/url\(([\'\"])\s*https*:.*([\'\"])\)/si'
|
||||
);
|
||||
array_push(
|
||||
$bad_attvals{'/.*/'}{'/^style/i'}[1],
|
||||
"url(\\1$trans_image_path\\1)"
|
||||
);
|
||||
}
|
||||
|
||||
$add_attr_to_tag = array(
|
||||
"/^a$/i" =>
|
||||
array('target' => '"_blank"')
|
||||
);
|
||||
|
||||
$trusted = tln_sanitize(
|
||||
$body,
|
||||
$tag_list,
|
||||
$rm_tags_with_content,
|
||||
$self_closing_tags,
|
||||
$force_tag_closing,
|
||||
$rm_attnames,
|
||||
$bad_attvals,
|
||||
$add_attr_to_tag
|
||||
);
|
||||
return $trusted;
|
||||
}
|
||||
@@ -0,0 +1,185 @@
|
||||
<?php
|
||||
/*
|
||||
* ntlm_sasl_client.php
|
||||
*
|
||||
* @(#) $Id: ntlm_sasl_client.php,v 1.3 2004/11/17 08:00:37 mlemos Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
define("SASL_NTLM_STATE_START", 0);
|
||||
define("SASL_NTLM_STATE_IDENTIFY_DOMAIN", 1);
|
||||
define("SASL_NTLM_STATE_RESPOND_CHALLENGE", 2);
|
||||
define("SASL_NTLM_STATE_DONE", 3);
|
||||
define("SASL_FAIL", -1);
|
||||
define("SASL_CONTINUE", 1);
|
||||
|
||||
class ntlm_sasl_client_class
|
||||
{
|
||||
public $credentials = array();
|
||||
public $state = SASL_NTLM_STATE_START;
|
||||
|
||||
public function initialize(&$client)
|
||||
{
|
||||
if (!function_exists($function = "mcrypt_encrypt")
|
||||
|| !function_exists($function = "mhash")
|
||||
) {
|
||||
$extensions = array(
|
||||
"mcrypt_encrypt" => "mcrypt",
|
||||
"mhash" => "mhash"
|
||||
);
|
||||
$client->error = "the extension " . $extensions[$function] .
|
||||
" required by the NTLM SASL client class is not available in this PHP configuration";
|
||||
return (0);
|
||||
}
|
||||
return (1);
|
||||
}
|
||||
|
||||
public function ASCIIToUnicode($ascii)
|
||||
{
|
||||
for ($unicode = "", $a = 0; $a < strlen($ascii); $a++) {
|
||||
$unicode .= substr($ascii, $a, 1) . chr(0);
|
||||
}
|
||||
return ($unicode);
|
||||
}
|
||||
|
||||
public function typeMsg1($domain, $workstation)
|
||||
{
|
||||
$domain_length = strlen($domain);
|
||||
$workstation_length = strlen($workstation);
|
||||
$workstation_offset = 32;
|
||||
$domain_offset = $workstation_offset + $workstation_length;
|
||||
return (
|
||||
"NTLMSSP\0" .
|
||||
"\x01\x00\x00\x00" .
|
||||
"\x07\x32\x00\x00" .
|
||||
pack("v", $domain_length) .
|
||||
pack("v", $domain_length) .
|
||||
pack("V", $domain_offset) .
|
||||
pack("v", $workstation_length) .
|
||||
pack("v", $workstation_length) .
|
||||
pack("V", $workstation_offset) .
|
||||
$workstation .
|
||||
$domain
|
||||
);
|
||||
}
|
||||
|
||||
public function NTLMResponse($challenge, $password)
|
||||
{
|
||||
$unicode = $this->ASCIIToUnicode($password);
|
||||
$md4 = mhash(MHASH_MD4, $unicode);
|
||||
$padded = $md4 . str_repeat(chr(0), 21 - strlen($md4));
|
||||
$iv_size = mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB);
|
||||
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
|
||||
for ($response = "", $third = 0; $third < 21; $third += 7) {
|
||||
for ($packed = "", $p = $third; $p < $third + 7; $p++) {
|
||||
$packed .= str_pad(decbin(ord(substr($padded, $p, 1))), 8, "0", STR_PAD_LEFT);
|
||||
}
|
||||
for ($key = "", $p = 0; $p < strlen($packed); $p += 7) {
|
||||
$s = substr($packed, $p, 7);
|
||||
$b = $s . ((substr_count($s, "1") % 2) ? "0" : "1");
|
||||
$key .= chr(bindec($b));
|
||||
}
|
||||
$ciphertext = mcrypt_encrypt(MCRYPT_DES, $key, $challenge, MCRYPT_MODE_ECB, $iv);
|
||||
$response .= $ciphertext;
|
||||
}
|
||||
return $response;
|
||||
}
|
||||
|
||||
public function typeMsg3($ntlm_response, $user, $domain, $workstation)
|
||||
{
|
||||
$domain_unicode = $this->ASCIIToUnicode($domain);
|
||||
$domain_length = strlen($domain_unicode);
|
||||
$domain_offset = 64;
|
||||
$user_unicode = $this->ASCIIToUnicode($user);
|
||||
$user_length = strlen($user_unicode);
|
||||
$user_offset = $domain_offset + $domain_length;
|
||||
$workstation_unicode = $this->ASCIIToUnicode($workstation);
|
||||
$workstation_length = strlen($workstation_unicode);
|
||||
$workstation_offset = $user_offset + $user_length;
|
||||
$lm = "";
|
||||
$lm_length = strlen($lm);
|
||||
$lm_offset = $workstation_offset + $workstation_length;
|
||||
$ntlm = $ntlm_response;
|
||||
$ntlm_length = strlen($ntlm);
|
||||
$ntlm_offset = $lm_offset + $lm_length;
|
||||
$session = "";
|
||||
$session_length = strlen($session);
|
||||
$session_offset = $ntlm_offset + $ntlm_length;
|
||||
return (
|
||||
"NTLMSSP\0" .
|
||||
"\x03\x00\x00\x00" .
|
||||
pack("v", $lm_length) .
|
||||
pack("v", $lm_length) .
|
||||
pack("V", $lm_offset) .
|
||||
pack("v", $ntlm_length) .
|
||||
pack("v", $ntlm_length) .
|
||||
pack("V", $ntlm_offset) .
|
||||
pack("v", $domain_length) .
|
||||
pack("v", $domain_length) .
|
||||
pack("V", $domain_offset) .
|
||||
pack("v", $user_length) .
|
||||
pack("v", $user_length) .
|
||||
pack("V", $user_offset) .
|
||||
pack("v", $workstation_length) .
|
||||
pack("v", $workstation_length) .
|
||||
pack("V", $workstation_offset) .
|
||||
pack("v", $session_length) .
|
||||
pack("v", $session_length) .
|
||||
pack("V", $session_offset) .
|
||||
"\x01\x02\x00\x00" .
|
||||
$domain_unicode .
|
||||
$user_unicode .
|
||||
$workstation_unicode .
|
||||
$lm .
|
||||
$ntlm
|
||||
);
|
||||
}
|
||||
|
||||
public function start(&$client, &$message, &$interactions)
|
||||
{
|
||||
if ($this->state != SASL_NTLM_STATE_START) {
|
||||
$client->error = "NTLM authentication state is not at the start";
|
||||
return (SASL_FAIL);
|
||||
}
|
||||
$this->credentials = array(
|
||||
"user" => "",
|
||||
"password" => "",
|
||||
"realm" => "",
|
||||
"workstation" => ""
|
||||
);
|
||||
$defaults = array();
|
||||
$status = $client->GetCredentials($this->credentials, $defaults, $interactions);
|
||||
if ($status == SASL_CONTINUE) {
|
||||
$this->state = SASL_NTLM_STATE_IDENTIFY_DOMAIN;
|
||||
}
|
||||
unset($message);
|
||||
return ($status);
|
||||
}
|
||||
|
||||
public function step(&$client, $response, &$message, &$interactions)
|
||||
{
|
||||
switch ($this->state) {
|
||||
case SASL_NTLM_STATE_IDENTIFY_DOMAIN:
|
||||
$message = $this->TypeMsg1($this->credentials["realm"], $this->credentials["workstation"]);
|
||||
$this->state = SASL_NTLM_STATE_RESPOND_CHALLENGE;
|
||||
break;
|
||||
case SASL_NTLM_STATE_RESPOND_CHALLENGE:
|
||||
$ntlm_response = $this->NTLMResponse(substr($response, 24, 8), $this->credentials["password"]);
|
||||
$message = $this->TypeMsg3(
|
||||
$ntlm_response,
|
||||
$this->credentials["user"],
|
||||
$this->credentials["realm"],
|
||||
$this->credentials["workstation"]
|
||||
);
|
||||
$this->state = SASL_NTLM_STATE_DONE;
|
||||
break;
|
||||
case SASL_NTLM_STATE_DONE:
|
||||
$client->error = "NTLM authentication was finished without success";
|
||||
return (SASL_FAIL);
|
||||
default:
|
||||
$client->error = "invalid NTLM authentication step state";
|
||||
return (SASL_FAIL);
|
||||
}
|
||||
return (SASL_CONTINUE);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user