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