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rss.php
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<?php
/**
* $Id$
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright (C) 2008, 2009 KnowledgeTree Inc.
*
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation.
*
* 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 more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
* California 94120-7775, or email info@knowledgetree.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* KnowledgeTree" logo and retain the original copyright notice. If the display of the
* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
* must display the words "Powered by KnowledgeTree" and retain the original
* copyright notice.
* Contributor( s): ______________________________________
*/
require_once('config/dmsDefaults.php');
require_once(KT_LIB_DIR .'/authentication/DBAuthenticator.inc');
require_once(KT_LIB_DIR .'/authentication/authenticationutil.inc.php');
require_once(KT_DIR. '/plugins/rssplugin/KTrss.inc.php');
// Workaround for mod_auth when running php cgi
if(!isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['HTTP_AUTHORIZATION'])){
list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':' , base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
}
// workaround to get http authentication working in cgi mode
// * older workaround - doesn't seem to be working now *
$altinfo = KTUtil::arrayGet( $_SERVER, 'kt_auth', KTUtil::arrayGet( $_SERVER, 'REDIRECT_kt_auth'));
if ( !empty( $altinfo) && !isset( $_SERVER['PHP_AUTH_USER'])) {
$val = $altinfo;
$pieces = explode( ' ', $val); // bad.
if ( $pieces[0] == 'Basic') {
$chunk = $pieces[1];
$decoded = base64_decode( $chunk);
$credential_info = explode( ':', $decoded);
if ( count( $credential_info) == 2) {
$_SERVER['PHP_AUTH_USER'] = $credential_info[0];
$_SERVER['PHP_AUTH_PW'] = $credential_info[1];
$_SERVER["AUTH_TYPE"] = 'Basic';
}
}
}
if (!validateUser($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW'])) {
header('WWW-Authenticate: Basic realm="KnowledgeTree DMS"');
header('HTTP/1.0 401 Unauthorized');
echo 'This RSS feed requires authentication. Please enter your username and password.';
exit;
} else {
$user = DBAuthenticator::getUser($_SERVER['PHP_AUTH_USER'], array('id'=>'id',));
$id = $user[$_SERVER['PHP_AUTH_USER']]['id'];
if(OS_WINDOWS){
$sReferrer = $_SERVER['HTTP_USER_AGENT'];
// Check if this is IE 6
if(strstr($sReferrer, 'MSIE 6.0')){
header('Content-Type: application/rss+xml; charset=utf-8;');
header('Content-Disposition: inline; filename="rss.xml"');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
}
}
if(KTUtil::arrayGet($_REQUEST, 'docId')){ // if a docId parameter is passed
// get document id from http request object
$iDocumentId = KTUtil::arrayGet($_REQUEST, 'docId');
if(KTrss::validateDocumentPermissions($id, $iDocumentId)){ // if document passes validation check
// get document info
$aDocumentInfo[] = KTrss::getOneDocument($iDocumentId, $id);
if($aDocumentInfo){
// create rss xml for document
$documentFeed = KTrss::arrayToXML($aDocumentInfo);
}else{
// create rss xml for the error
$error = KTrss::errorToXML(_kt('This document has returned a empty response'));
}
}else{
// create rss xml for error
$error = KTrss::errorToXML(_kt('You are either not authorised to view details on this document or it does not exist.' .
' Please visit http://' .$_SERVER['HTTP_HOST'].'/'.$GLOBALS['KTRootUrl'].'/ to browse for a valid document.'));
}
if(isset($error)){ // if an error exist, output...else out the result
echo $error;
}else{
echo $documentFeed;
}
}elseif(KTUtil::arrayGet($_REQUEST, 'folderId')){ // if a folderId parameter is passed
// get folder id from http request object
$iFolderId = KTUtil::arrayGet($_REQUEST, 'folderId');
if(KTrss::validateFolderPermissions($id, $iFolderId)){ // if folder passes validation check
// get folder info
$aFolderInfo[] = KTrss::getOneFolder($iFolderId);
if($aFolderInfo){
// create rss xml for folder
$folderFeed = KTrss::arrayToXML($aFolderInfo);
}else{
// create rss xml for error
$error = KTrss::errorToXML(_kt('This document has returned a empty response'));
}
}else{
// create rss xml for error
$error = KTrss::errorToXML(_kt('You are either not authorised to view details on this folder or it does not exist.' .
' Please visit http://' .$_SERVER['HTTP_HOST'].'/'.$GLOBALS['KTRootUrl'].'/ to browse for a valid folder.'));
}
if(isset($error)){ // if an error exist, output...else out the result
echo $error;
}else{
echo $folderFeed;
}
}else{ // else do normal rss parsing
// get full list of subscribed documents and folders
$aFullList = kt_array_merge(KTrss::getDocuments($id), KTrss::getFolders($id));
$internalFeed = KTrss::arrayToXML($aFullList);
echo $internalFeed;
}
}
// Validate user credentials
function validateUser($username, $password){
//return DBAuthenticator::checkPassword($username, $password);
$oUser =& User::getByUsername($username);
if(PEAR::isError($oUser) || is_a($oUser, 'KTEntityNoObjects')){
return false;
}
return KTAuthenticationUtil::checkPassword($oUser, $password);
}
?>