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- <?php
- /* See license terms in /license.txt */
- /* FIX for IE cache when using https */
- session_cache_limiter("none");
- /**
- * This is an interface between Chamilo and Videoconference application
- *
- */
- /*==== DEBUG ====*/
- $debug=0;
- /*==== CONSTANTS ==== */
- define('VIDEOCONF_UPLOAD_PATH', '/videoconf');
- $presentation_extension = array('.ppt', '.odp');
- $image_extension = array ('.png', '.jpg', '.gif', '.jpeg');
- if ($debug>0)
- {
- // dump the request
- $v = array_keys(get_defined_vars());
- error_log(var_export($v, true),3, '/tmp/log');
- foreach (array_keys(get_defined_vars()) as $k) {
- if ($k == 'GLOBALS')
- continue;
- error_log($k, 3, '/tmp/log');
- error_log(var_export($$k, true), 3, '/tmp/log');
- }
- }
- /*==== Flash loose the cookie ===*/
- /* needed when using the nice upload window :
- if ($_SERVER['HTTP_USER_AGENT'] == 'Shockwave Flash') {
- $sid = $_REQUEST['sid'];
- if ($debug>0) error_log("reusing: ".$sid);
- session_id($sid);
- } */
- /*==== INCLUDE ====*/
- require_once '../inc/global.inc.php';
- api_block_anonymous_users();
- require_once (api_get_path(LIBRARY_PATH)."course.lib.php");
- require_once (api_get_path(LIBRARY_PATH)."document.lib.php");
- require_once (api_get_path(LIBRARY_PATH)."fileUpload.lib.php");
- require_once ("../newscorm/learnpath.class.php");
- require_once ("../newscorm/openoffice_presentation.class.php");
- /*==== Variables initialisation ====*/
- $action = $_REQUEST["action"]; //safe as only used in if()'s
- $seek = array('/','%2F','..');
- $destroy = array('','','');
- $cidReq = str_replace($seek,$destroy,$_REQUEST["cidReq"]);
- $cidReq = Security::remove_XSS($cidReq);
- $user_id = api_get_user_id();
- $coursePath = api_get_path(SYS_COURSE_PATH).$cidReq.'/document';
- $_course = CourseManager::get_course_information($cidReq);
- $_course['path'] = $_course['directory'];
- // FIXME: add_document needs this to work
- $_course['dbName'] = $_course['db_name'];
- // FIXME: check if CourseManager::get_user_in_course_status return !=
- // COURSEMANAGER when the code is not valid
- if ($debug>0) error_log($coursePath, 0);
- if ($action == "uploadgui")
- {
- echo '<form enctype="multipart/form-data" action="api.php" method="POST">
- <input type="hidden" name="MAX_FILE_SIZE" value="100000000" />
- <input type="hidden" name="action" value="upload" />
- <input type="hidden" name="cidReq" value="'.$cidReq.'" />
- <input type="hidden" name="sid" value="'.Security::remove_XSS($_REQUEST["sid"]).'" />
- '.get_lang('SelectFile').': <input name="Filedata" type="file" /><br />
- <input type="submit" value="'.get_lang('UploadFile').'" />
- </form>
- ';
- die();
- }
- else if ($action == "upload")
- {
- if ($debug >0) error_log("upload".$_FILES['Filedata']);
- /*==== PERMISSION ====*/
- $permissions = CourseManager::get_user_in_course_status($user_id, $cidReq);
- if ($permissions != COURSEMANAGER)
- {
- if ($debug >0) error_log("Upload from videoconf not allowed !!!",0);
- die('Not allowed'); // this user is not allowed to add upload documents
- }
- /*==== UPLOAD ====*/
- $destPath = $coursePath.VIDEOCONF_UPLOAD_PATH;
- /*==== creation of /videoconf ====*/
- if (!is_dir($destPath))
- {
- $result = create_unexisting_directory($_course,$user_id, api_get_session_id(), 0,NULL,$coursePath,VIDEOCONF_UPLOAD_PATH);
- if (!$result)
- {
- if ($debug>0) error_log("Can't create ".$destPath." folder",0);
- }
- }
- /*==== file upload ====*/
- $newPath = $_FILES['Filedata']['name'];
- if($debug>0) error_log($newPath);
- /*==== extension extraction ====*/
- $file_name = (strrpos($newPath,'.')>0 ? substr($newPath, 0, strrpos($newPath,'.')) : $newPath);
- $file_extension = (strrpos($newPath,'.')>0 ? substr($newPath, strrpos($newPath,'.'),10) : '');
- if($debug>0) error_log(strrpos($newPath,'.'));
- if($debug>0) error_log($file_extension);
- /*==== conversion if needed ====*/
- if (!in_array(strtolower($file_extension), $image_extension))
- {
- if($debug>0) error_log("converting: ".$file_extension);
- $take_slide_name = false;
- $o_ppt = new OpenofficePresentation($take_slide_name);
- $o_ppt -> set_slide_size(640,480);
- $o_ppt -> convert_document($_FILES['Filedata'],'add_docs_to_visio');
- }
- echo '<html><body><script language="javascript">setTimeout(1000,window.close());</script></body></html>';
- }
- else if ($action == "service")
- {
- /*==== List files ====*/
- if ($debug>0) error_log("sending file list",0);
- $subaction = $_REQUEST["subaction"];
- $is_manager = (CourseManager::get_user_in_course_status($user_id, $cidReq) == COURSEMANAGER);
- if ($subaction == "list")
- {
- // FIXME: check security around $_REQUEST["cwd"]
- $cwd = $_REQUEST["cwd"];
- // treat /..
- $nParent = 0; // the number of /.. into the url
- while (substr($cwd, -3, 3) == "/..")
- {
- // go to parent directory
- $cwd= substr($cwd, 0, -3);
- if (strlen($cwd) == 0) $cwd="/";
- $nParent++;
- }
- for (;$nParent >0; $nParent--){
- $cwd = (strrpos($cwd,'/')>-1 ? substr($cwd, 0, strrpos($cwd,'/')) : $cwd);
- }
- if (strlen($cwd) == 0) $cwd="/";
- if (Security::check_abs_path($cwd,api_get_path(SYS_PATH)))
- die();
- // check if user can delete files. He must be manager and be inside /videoconf
- $is_below_videoconf_dir = (substr($cwd,0,strlen(VIDEOCONF_UPLOAD_PATH)) == VIDEOCONF_UPLOAD_PATH);
- if($debug>0) error_log('Current working directory: '.$cwd);
- if($debug>0) error_log('Videoconf upload path: '.VIDEOCONF_UPLOAD_PATH);
- /* $canDelete = ($canDelete && $isBellowVideoConfUploadPath);
- */
- $can_delete = ($is_manager && $is_below_videoconf_dir);
- // get files list
- $files = DocumentManager::get_all_document_data($_course, $cwd, 0, NULL, false);
- printf("<dokeosobject><fileListMeta></fileListMeta><fileList>");
- printf("<folders>");
- // title filter
- if (is_array($files)) foreach (array_keys($files) as $k)
- {
- // converting to UTF-8
- $files[$k]['title'] = api_convert_encoding(
- api_strlen($files[$k]['title']) > 32 ?
- api_substr($files[$k]['title'],0, 32)."..." :
- $files[$k]['title'],
- 'utf-8',api_get_system_encoding());
- // removing '<', '>' and '_'
- $files[$k]['title'] = str_replace(array('<','>','_'),' ', $files[$k]['title']);
- }
- if(is_array($files))
- {
- foreach($files as $i)
- {
- if ($i["filetype"] == "folder")
- printf('<folder><path>%s</path><title>%s</title><canDelete>%s</canDelete></folder>', $i['path'],$i['title'],($can_delete?'true':'false'));
- }
- }
- printf("</folders><files>");
- if(is_array($files))
- {
- foreach($files as $i) {
- $extension = (strrpos($i['path'],'.')>0 ? substr($i['path'], strrpos($i['path'],'.'),10) : '');
- if ($i["filetype"] == "file" && in_array(strtolower($extension), $image_extension))
- printf('<file><path>%s</path><title>%s</title><canDelete>%s</canDelete></file>', $i['path'],$i['title'],($can_delete?'true':'false'));
- }
- }
- printf("</files><ppts>");
- printf("</ppts>");
- printf("</fileList></dokeosobject>");
- }
- else if ($subaction == "delete")
- {
- /*==== PERMISSION ====*/
- $permissions = CourseManager::get_user_in_course_status($user_id, $cidReq);
- if ($permissions != COURSEMANAGER)
- {
- if ($debug > 0) error_log("Upload from videoconf not allowed !!!",0);
- die(); // this user is not allowed to add upload documents
- }
- /*==== DELETE ====*/
- $path = str_replace('../','',$_REQUEST["path"]);
- if ((substr($path,0,strlen(VIDEOCONF_UPLOAD_PATH)) != VIDEOCONF_UPLOAD_PATH))
- {
- if ($debug >0 ) error_log("Delete from videoconf for "+$path+" NOT ALLOWED",0);
- die();
- }
- DocumentManager::delete_document($_course, $path, $coursePath);
- echo "<result>OK</result>"; // We have to return something to OpenLaszlo
- }
- } else if ($action == "download") {
- /*==== DOWNLOAD ====*/
- //check if the document is in the database
- if(!DocumentManager::get_document_id($_course,$_REQUEST['file'])) {
- //file not found!
- if ($debug>0) error_log("404 ".$_REQUEST["file"]);
- header("HTTP/1.0 404 Not Found");
- $error404 = '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">';
- $error404 .= '<html><head>';
- $error404 .= '<title>404 Not Found</title>';
- $error404 .= '</head><body>';
- $error404 .= '<h1>Not Found</h1>';
- $error404 .= '<p>The requested URL was not found on this server.</p>';
- $error404 .= '<hr>';
- $error404 .= '</body></html>';
- echo($error404);
- exit;
- }
- $doc_url = str_replace('../','',$_REQUEST['file']);
- if ($debug >0) error_log($doc_url);
- $full_file_name = $coursePath.$doc_url;
- if (Security::check_abs_path($full_file_name, $coursePath.'/')) {
- DocumentManager::file_send_for_download($full_file_name,false);
- }
- exit;
- }
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