Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/document/edit_document.php

600 lines
21 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* This file allows editing documents.
*
* Based on create_document, this file allows
* - edit name
* - edit comments
* - edit metadata (requires a document table entry)
* - edit html content (only for htm/html files)
*
* For all files
* - show editable name field
* - show editable comments field
* Additionally, for html and text files
* - show RTE
*
* Remember, all files and folders must always have an entry in the
* database, regardless of wether they are visible/invisible, have
* comments or not.
*
* @package chamilo.document
* @todo improve script structure (FormValidator is used to display form, but
* not for validation at the moment)
*/
// Name of the language file that needs to be included
$language_file = array('document', 'gradebook');
/* Included libraries */
require_once '../inc/global.inc.php';
// Template's javascript
$htmlHeadXtra[] = '
<script type="text/javascript">
function InnerDialogLoaded()
{
/*
var B=new window.frames[0].FCKToolbarButton(\'Templates\',window.frames[0].FCKLang.Templates);
return B.ClickFrame();
*/
var isIE = (navigator.appVersion.indexOf(\'MSIE\') != -1) ? true : false ;
var EditorFrame = null ;
if ( !isIE )
{
EditorFrame = window.frames[0] ;
}
else
{
// For this dynamic page window.frames[0] enumerates frames in a different order in IE.
// We need a sure method to locate the frame that contains the online editor.
for ( var i = 0, n = window.frames.length ; i < n ; i++ )
{
if ( window.frames[i].location.toString().indexOf(\'InstanceName=content\') != -1 )
{
EditorFrame = window.frames[i] ;
}
}
}
if ( !EditorFrame )
{
return null ;
}
var B = new EditorFrame.FCKToolbarButton(\'Templates\', EditorFrame.FCKLang.Templates);
return B.ClickFrame();
};
function FCKeditor_OnComplete( editorInstance )
{
document.getElementById(\'frmModel\').innerHTML = "<iframe style=\'height: 525px; width: 180px;\' scrolling=\'no\' frameborder=\'0\' src=\''.api_get_path(WEB_LIBRARY_PATH).'fckeditor/editor/fckdialogframe.html \'>";
}
</script>';
$_SESSION['whereami'] = 'document/create';
$this_section = SECTION_COURSES;
$lib_path = api_get_path(LIBRARY_PATH);
require_once $lib_path.'fileManage.lib.php';
require_once $lib_path.'fileUpload.lib.php';
require_once $lib_path.'document.lib.php';
require_once $lib_path.'groupmanager.lib.php';
require_once $lib_path.'formvalidator/FormValidator.class.php';
/* Constants & Variables */
if (api_is_in_group()) {
$group_properties = GroupManager::get_group_properties($_SESSION['_gid']);
}
$file = $_GET['file'];
//echo('file: '.$file.'<br />');
$doc = basename($file);
//echo('doc: '.$doc.'<br />');
$dir = Security::remove_XSS($_GET['curdirpath']);
//I'm in the certification module?
$is_certificate_mode = DocumentManager::is_certificate_mode($dir);
//echo('dir: '.$dir.'<br />');
$file_name = $doc;
//echo('file_name: '.$file_name.'<br />');
$baseServDir = api_get_path(SYS_COURSE_PATH);
$baseServUrl = $_configuration['url_append'].'/';
$courseDir = $_course['path'].'/document';
$baseWorkDir = $baseServDir.$courseDir;
$group_document = false;
$current_session_id = api_get_session_id();
$doc_tree = explode('/', $file);
$count_dir = count($doc_tree) - 2; // "2" because at the begin and end there are 2 "/"
// Level correction for group documents.
if (!empty($group_properties['directory'])) {
$count_dir = $count_dir > 0 ? $count_dir - 1 : 0;
}
$relative_url = '';
for ($i = 0; $i < ($count_dir); $i++) {
$relative_url .= '../';
}
$is_allowed_to_edit = api_is_allowed_to_edit(null, true);
$html_editor_config = array(
'ToolbarSet' => ($is_allowed_to_edit ? 'Documents' :'DocumentsStudent'),
'Width' => '100%',
'Height' => '600',
'FullPage' => true,
'InDocument' => true,
'CreateDocumentDir' => $relative_url,
'CreateDocumentWebDir' => (empty($group_properties['directory']))
? api_get_path(WEB_COURSE_PATH).$_course['path'].'/document/'
: api_get_path(WEB_COURSE_PATH).api_get_course_path().'/document'.$group_properties['directory'].'/',
'BaseHref' => api_get_path(WEB_COURSE_PATH).$_course['path'].'/document'.$dir
);
$use_document_title = api_get_setting('use_document_title') == 'true';
$noPHP_SELF = true;
/* Other initialization code */
/* Please, do not modify this dirname formatting */
if (strstr($dir, '..')) {
$dir = '/';
}
if ($dir[0] == '.') {
$dir = substr($dir, 1);
}
if ($dir[0] != '/') {
$dir = '/'.$dir;
}
if ($dir[strlen($dir) - 1] != '/') {
$dir .= '/';
}
$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document'.$dir;
if (!is_dir($filepath)) {
$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
$dir = '/';
}
$dbTable = Database::get_course_table(TABLE_DOCUMENT);
if (!empty($_SESSION['_gid'])) {
$req_gid = '&amp;gidReq='.$_SESSION['_gid'];
$interbreadcrumb[] = array ('url' => '../group/group_space.php?gidReq='.$_SESSION['_gid'], 'name' => get_lang('GroupSpace'));
$group_document = true;
$noPHP_SELF = true;
}
$my_cur_dir_path = Security::remove_XSS($_GET['curdirpath']);
if (!$is_certificate_mode)
$interbreadcrumb[]=array("url"=>"./document.php?curdirpath=".urlencode($my_cur_dir_path).$req_gid, "name"=> get_lang('Documents'));
else
$interbreadcrumb[]= array ( 'url' => '../gradebook/'.$_SESSION['gradebook_dest'], 'name' => get_lang('Gradebook'));
$is_allowedToEdit = is_allowed_to_edit() || $_SESSION['group_member_with_upload_rights'];
if (!$is_allowedToEdit) {
api_not_allowed(true);
}
$user_id = api_get_user_id();
event_access_tool(TOOL_DOCUMENT);
if (!is_allowed_to_edit()) {
if (DocumentManager::check_readonly($_course, $user_id, $file)) {
api_not_allowed();
}
}
/* MAIN TOOL CODE */
/* General functions */
/*
Workhorse functions
These do the actual work that is expected from of this tool, other functions
are only there to support these ones.
*/
/**
This function changes the name of a certain file.
It needs no global variables, it takes all info from parameters.
It returns nothing.
*/
function change_name($base_work_dir, $source_file, $rename_to, $dir, $doc) {
$file_name_for_change = $base_work_dir.$dir.$source_file;
//api_display_debug_info("call my_rename: params $file_name_for_change, $rename_to");
$rename_to = disable_dangerous_file($rename_to); // Avoid renaming to .htaccess file
$rename_to = my_rename($file_name_for_change, stripslashes($rename_to)); // fileManage API
if ($rename_to) {
if (isset($dir) && $dir != '') {
$source_file = $dir.$source_file;
$new_full_file_name = dirname($source_file).'/'.$rename_to;
} else {
$source_file = '/'.$source_file;
$new_full_file_name = '/'.$rename_to;
}
update_db_info('update', $source_file, $new_full_file_name); // fileManage API
$name_changed = get_lang('ElRen');
$info_message = get_lang('fileModified');
$GLOBALS['file_name'] = $rename_to;
$GLOBALS['doc'] = $rename_to;
return $info_message;
} else {
$dialogBox = get_lang('FileExists'); // TODO: This variable is not used.
/* Return to step 1 */
$rename = $source_file;
unset($source_file);
}
}
/* Code to change the comment
Step 2. React on POST data
(Step 1 see below) */
if (isset($_POST['newComment'])) {
// Fixing the path if it is wrong
$commentPath = str_replace('//', '/', Database::escape_string(Security::remove_XSS($_POST['commentPath'])));
$newComment = trim(Database::escape_string(Security::remove_XSS($_POST['newComment']))); // Remove spaces
$newTitle = trim(Database::escape_string(Security::remove_XSS($_POST['newTitle']))); // Remove spaces
// Check whether there is already a database record for this file
$result = Database::query ("SELECT * FROM $dbTable WHERE path LIKE BINARY '".$commentPath."'");
while ($row = Database::fetch_array($result, 'ASSOC')) {
$attribute['path' ] = $row['path' ];
$attribute['comment' ] = $row['title'];
}
// Determine the correct query to the DB,
// new code always keeps document in database
$query = "UPDATE $dbTable
SET comment='".$newComment."', title='".$newTitle."'
WHERE path
LIKE BINARY '".$commentPath."'";
Database::query($query);
$oldComment = $newComment;
$oldTitle = $newTitle;
$comments_updated = get_lang('ComMod');
$info_message = get_lang('fileModified');
}
/* Code to change the name
Step 2. react on POST data - change the name
(Step 1 see below) */
if (isset($_POST['renameTo'])) {
$info_message = change_name($baseWorkDir, $_GET['sourceFile'], $_POST['renameTo'], $dir, $doc);
//assume name change was successful
}
/* Code to change the comment
Step 1. Create dialog box. */
/** TODO: Check whether this code is still used **/
/* Search the old comment */ // RH: metadata: added 'id,'
$result = Database::query("SELECT id,comment,title FROM $dbTable WHERE path LIKE BINARY '$dir$doc'");
/*
// Debug info - enable on temporary needs only.
$message = '<i>Debug info</i><br />directory = '.$dir.'<br />';
$message .= 'document = '.$file_name.'<br />';
$message .= 'comments file = '.$file.'<br />';
Display::display_normal_message($message);
*/
while ($row = Database::fetch_array($result, 'ASSOC')) {
$oldComment = $row['comment'];
$oldTitle = $row['title'];
$docId = $row['id']; // RH: metadata
}
/* WYSIWYG HTML EDITOR - Program Logic */
if ($is_allowedToEdit) {
if ($_POST['formSent'] == 1) {
if (isset($_POST['renameTo'])) {
$_POST['filename'] = disable_dangerous_file($_POST['renameTo']);
$extension = explode('.', $_POST['filename']);
$extension = $extension[sizeof($extension) - 1];
$_POST['filename'] = str_replace('.'.$extension, '', $_POST['filename']);
}
$filename = stripslashes($_POST['filename']);
$content = trim(str_replace(array("\r", "\n"), '', stripslashes($_POST['content'])));
$content = Security::remove_XSS($content, COURSEMANAGERLOWSECURITY);
if (!strstr($content, '/css/frames.css')) {
$content=str_replace('</title></head>', '</title><link rel="stylesheet" href="../css/frames.css" type="text/css" /></head>', $content);
}
if (!ctype_alnum($_POST['extension'])) {
header('Location: document.php?msg=WeirdExtensionDeniedInPost');
exit ();
}
$extension = $_POST['extension'];
$file = $dir.$filename.'.'.$extension;
$read_only_flag = $_POST['readonly'];
$read_only_flag = empty($read_only_flag) ? 0 : 1;
$show_edit = $_SESSION['showedit'];
//unset($_SESSION['showedit']);
api_session_unregister('showedit');
if (empty($filename)) {
$msgError = get_lang('NoFileName');
} else {
if ($read_only_flag == 0) {
if (!empty($content)) {
if ($fp = @fopen($filepath.$filename.'.'.$extension, 'w')) {
$content = text_filter($content);
// For flv player, change absolute paht temporarely to prevent from erasing it in the following lines
$content = str_replace(array('flv=h', 'flv=/'), array('flv=h|', 'flv=/|'), $content);
// Change the path of mp3 to absolute
// The first regexp deals with ../../../ urls
// Disabled by Ivan Tcholakov.
//$content = preg_replace("|(flashvars=\"file=)(\.+/)+|","$1".api_get_path(REL_COURSE_PATH).$_course['path'].'/document/',$content);
// The second regexp deals with audio/ urls
// Disabled by Ivan Tcholakov.
//$content = preg_replace("|(flashvars=\"file=)([^/]+)/|","$1".api_get_path(REL_COURSE_PATH).$_course['path'].'/document/$2/',$content);
fputs($fp, $content);
fclose($fp);
if (!is_dir($filepath.'css')) {
mkdir($filepath.'css', api_get_permissions_for_new_directories());
$doc_id = add_document($_course, $dir.'css', 'folder', 0, 'css');
api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'FolderCreated', $_user['user_id'], null, null, null, null, $current_session_id);
api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'invisible', $_user['user_id'], null, null, null, null, $current_session_id);
}
if (!is_file($filepath.'css/frames.css')) {
$platform_theme = api_get_setting('stylesheets');
if (file_exists(api_get_path(SYS_CODE_PATH).'css/'.$platform_theme.'/frames.css')) {
copy(api_get_path(SYS_CODE_PATH).'css/'.$platform_theme.'/frames.css', $filepath.'css/frames.css');
$doc_id = add_document($_course, $dir.'css/frames.css', 'file', filesize($filepath.'css/frames.css'), 'frames.css');
api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'DocumentAdded', $_user['user_id'], null, null, null, null, $current_session_id);
api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'invisible', $_user['user_id'], null, null, null, null, $current_session_id);
}
}
// "WHAT'S NEW" notification: update table item_property
$document_id = DocumentManager::get_document_id($_course, $file);
if ($document_id) {
$file_size = filesize($filepath.$filename.'.'.$extension);
update_existing_document($_course, $document_id, $file_size, $read_only_flag);
api_item_property_update($_course, TOOL_DOCUMENT, $document_id, 'DocumentUpdated', $_user['user_id'], null, null, null, null, $current_session_id);
// Update parent folders
item_property_update_on_folder($_course, $dir,$_user['user_id']);
$dir = substr($dir, 0, -1);
header('Location: document.php?curdirpath='.urlencode($dir));
exit ();
} else {
//$msgError = get_lang('Impossible');
}
} else {
$msgError = get_lang('Impossible');
}
} else {
if (is_file($filepath.$filename.'.'.$extension)) {
$file_size = filesize($filepath.$filename.'.'.$extension);
$document_id = DocumentManager::get_document_id($_course, $file);
if ($document_id) {
update_existing_document($_course, $document_id, $file_size, $read_only_flag);
}
}
}
} else {
if (is_file($filepath.$filename.'.'.$extension)) {
$file_size = filesize($filepath.$filename.'.'.$extension);
$document_id = DocumentManager::get_document_id($_course, $file);
if ($document_id) {
update_existing_document($_course, $document_id, $file_size, $read_only_flag);
}
}
if (empty($document_id)) { // or if is a folder
$folder = $_POST['file_path'];
$document_id = DocumentManager::get_document_id($_course, $folder);
if (DocumentManager::is_folder($_course, $document_id)) {
if ($document_id) {
update_existing_document($_course, $document_id, $file_size, $read_only_flag);
}
}
}
}
}
}
}
// Replace relative paths by absolute web paths (e.g. './' => 'http://www.chamilo.org/courses/ABC/document/')
if (file_exists($filepath.$doc)) {
$extension = explode('.', $doc);
$extension = $extension[sizeof($extension) - 1];
$filename = str_replace('.'.$extension, '', $doc);
$extension = strtolower($extension);
if (in_array($extension, array('html', 'htm'))) {
$content = file($filepath.$doc);
$content = implode('', $content);
$path_to_append = api_get_path(WEB_COURSE_PATH).$_course['path'].'/document'.$dir;
$content = str_replace('="./', '="'.$path_to_append, $content);
$content = str_replace('mp3player.swf?son=.%2F', 'mp3player.swf?son='.urlencode($path_to_append), $content);
}
}
/* Display user interface */
// Display the header
$nameTools = get_lang('EditDocument') . ': '.$file_name;
Display::display_header($nameTools, 'Doc');
// Display the tool title
//api_display_tool_title($nameTools);
if (isset($msgError)) {
Display::display_error_message($msgError);
}
if (isset($info_message)) {
Display::display_confirmation_message($info_message);
if (isset($_POST['origin'])) {
$slide_id = $_POST['origin_opt'];
nav_to_slideshow($slide_id);
}
}
// Readonly
$sql = 'SELECT id, readonly FROM '.$dbTable.' WHERE path LIKE BINARY "'.$dir.$doc.'"';
$rs = Database::query($sql);
$readonly = Database::result($rs, 0, 'readonly');
$doc_id = Database::result($rs, 0, 'id');
// Owner
$sql = 'SELECT insert_user_id FROM '.Database::get_course_table(TABLE_ITEM_PROPERTY).'
WHERE tool LIKE "document"
AND ref='.intval($doc_id);
$rs = Database::query($sql);
$owner_id = Database::result($rs, 0, 'insert_user_id');
if ($owner_id == $_user['user_id'] || api_is_platform_admin() || $is_allowed_to_edit || GroupManager :: is_user_in_group($_user['user_id'], $_SESSION['_gid'] )) {
$get_cur_path = Security::remove_XSS($_GET['curdirpath']);
$get_file = Security::remove_XSS($_GET['file']);
$action = api_get_self().'?sourceFile='.urlencode($file_name).'&curdirpath='.urlencode($get_cur_path).'&file='.urlencode($get_file).'&doc='.urlencode($doc);
$form = new FormValidator('formEdit', 'post', $action);
// Form title
$form->addElement('header', '', $nameTools);
$renderer = $form->defaultRenderer();
$form->addElement('hidden', 'filename');
$form->addElement('hidden', 'extension');
$form->addElement('hidden', 'file_path');
$form->addElement('hidden', 'commentPath');
$form->addElement('hidden', 'showedit');
$form->addElement('hidden', 'origin');
$form->addElement('hidden', 'origin_opt');
if ($use_document_title) {
$form->add_textfield('newTitle', get_lang('Title'));
$defaults['newTitle'] = $oldTitle;
} else {
$form->addElement('hidden', 'renameTo');
}
$form->addElement('hidden', 'formSent');
$defaults['formSent'] = 1;
$read_only_flag = $_POST['readonly'];
// Desactivation of IE proprietary commenting tags inside the text before loading it on the online editor.
// This fix has been proposed by Hubert Borderiou, see Bug #573, http://support.chamilo.org/issues/573
$defaults['content'] = str_replace('<!--[', '<!-- [', $content);
//if ($extension == 'htm' || $extension == 'html')
// HotPotatoes tests are html files, but they should not be edited in order their functionality to be preserved.
if (($extension == 'htm' || $extension == 'html') && stripos($dir, '/HotPotatoes_files') === false) {
if (empty($readonly) && $readonly == 0) {
$_SESSION['showedit'] = 1;
$renderer->setElementTemplate('<div class="row"><div class="label" id="frmModel" style="overflow: visible;"></div><div class="formw">{element}</div></div>', 'content');
$form->add_html_editor('content', '', false, true, $html_editor_config);
}
}
if (!$group_document) {
$metadata_link = '<a href="../metadata/index.php?eid='.urlencode('Document.'.$docId).'">'.get_lang('AddMetadata').'</a>';
$form->addElement('static', null, get_lang('Metadata'), $metadata_link);
}
$form->addElement('textarea', 'newComment', get_lang('Comment'), 'rows="3" style="width:300px;"');
/*
$renderer = $form->defaultRenderer();
*/
if ($owner_id == $_user['user_id'] || api_is_platform_admin()) {
$renderer->setElementTemplate('<div class="row"><div class="label"></div><div class="formw">{element}{label}</div></div>', 'readonly');
$checked =& $form->addElement('checkbox', 'readonly', get_lang('ReadOnly'));
if ($readonly == 1) {
$checked->setChecked(true);
}
}
if ($is_certificate_mode)
$form->addElement('style_submit_button', 'submit', get_lang('SaveCertificate'), 'class="save"');
else
$form->addElement('style_submit_button','submit',get_lang('SaveDocument'), 'class="save"');
$defaults['filename'] = $filename;
$defaults['extension'] = $extension;
$defaults['file_path'] = Security::remove_XSS($_GET['file']);
$defaults['commentPath'] = $file;
$defaults['renameTo'] = $file_name;
$defaults['newComment'] = $oldComment;
$defaults['origin'] = Security::remove_XSS($_GET['origin']);
$defaults['origin_opt'] = Security::remove_XSS($_GET['origin_opt']);
$form->setDefaults($defaults);
// Show templates
/*
$form->addElement('html', '<div id="frmModel" style="display:block; height:525px; width:240px; position:absolute; top:115px; left:1px;"></div>');
*/
if (isset($_REQUEST['curdirpath']) && $_GET['curdirpath']=='/certificates') {
$all_information_by_create_certificate=DocumentManager::get_all_info_to_certificate();
$str_info='';
foreach ($all_information_by_create_certificate[0] as $info_value) {
$str_info.=$info_value.'<br/>';
}
$create_certificate=get_lang('CreateCertificateWithTags');
Display::display_normal_message($create_certificate.': <br /><br />'.$str_info,false);
}
if ($is_certificate_mode) {
echo '<div class="actions">';
echo '<a href="document.php?curdirpath='.Security::remove_XSS($_GET['curdirpath']).'&selectcat=' . Security::remove_XSS($_GET['selectcat']).'">'.Display::return_icon('back.png',get_lang('Back').' '.get_lang('To').' '.get_lang('CertificateOverview')).get_lang('Back').' '.get_lang('To').' '.get_lang('CertificateOverview').'</a>';
echo '</div>';
} else {
$origin=Security::remove_XSS($_GET['origin']);
if ($origin=='slideshow') {
$slide_id=$_GET['origin_opt'];
nav_to_slideshow($slide_id);
}
}
$form->display();
//Display::display_error_message(get_lang('ReadOnlyFile'));
}
// For better navigation when a slide is been commented
function nav_to_slideshow($slide_id) {
$path = Security::remove_XSS($_GET['curdirpath']);
$pathurl = urlencode($path);
echo '<div class="actions">';
echo '<a href="document.php?action=exit_slideshow&curdirpath='.$pathurl.'">'.Display::return_icon('back.png').get_lang('BackTo').' '.get_lang('DocumentsOverview').'</a>&nbsp;';
//echo '<a href="'.api_get_path(WEB_PATH).'main/document/slideshow.php?slide_id='.$slide_id.'&curdirpath='.Security::remove_XSS(urlencode($_GET['curdirpath'])).'">'.Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('ViewSlideshow')).get_lang('BackTo').' '.get_lang('ViewSlideshow').'</a>';
echo '</div>';
}
Display::display_footer();