<?php // $Id: upload.php 22201 2009-07-17 19:57:03Z cfasanando $
/* For licensing terms, see /chamilo_license.txt */
/**
==============================================================================
* Main script for the documents tool
*
* This script allows the user to manage files and directories on a remote http server.
*
* The user can : - navigate through files and directories.
* - upload a file
* - delete, copy a file or a directory
* - edit properties & content (name, comments, html content)
*
* The script is organised in four sections.
*
* 1) Execute the command called by the user
* Note: somme commands of this section are organised in two steps.
* The script always begins with the second step,
* so it allows to return more easily to the first step.
*
* Note (March 2004) some editing functions (renaming, commenting)
* are moved to a separate page, edit_document.php. This is also
* where xml and other stuff should be added.
*
* 2) Define the directory to display
*
* 3) Read files and directories from the directory defined in part 2
* 4) Display all of that on an HTML page
*
* @todo eliminate code duplication between
* document/document.php, scormdocument.php
*
* @package dokeos.document
==============================================================================
*/
// name of the language file that needs to be included
$language_file = 'document';
// including the global Dokeos file
require_once '../inc/global.inc.php';
// including additional libraries
require_once api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php';
require_once api_get_path(LIBRARY_PATH) . 'document.lib.php';
require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
require_once api_get_path(LIBRARY_PATH) . 'formvalidator/FormValidator.class.php';
require_once 'document.inc.php';
// adding extra javascript to the form
$htmlHeadXtra[] = '< script src = "../inc/lib/javascript/jquery.js" type = "text/javascript" language = "javascript" > < / script > ';
$htmlHeadXtra[] = '< script type = "text/javascript" >
function check_unzip() {
if(document.upload.unzip.checked==true){
document.upload.if_exists[0].disabled=true;
document.upload.if_exists[1].checked=true;
document.upload.if_exists[2].disabled=true;
} else {
document.upload.if_exists[0].checked=true;
document.upload.if_exists[0].disabled=false;
document.upload.if_exists[2].disabled=false;
}
}
function advanced_parameters() {
if(document.getElementById(\'options\').style.display == \'none\') {
document.getElementById(\'options\').style.display = \'block\';
document.getElementById(\'img_plus_and_minus\').innerHTML=\' < img style = "vertical-align:middle;" src = "../img/div_hide.gif" alt = "" / > '.get_lang('AdvancedParameters').'\';
} else {
document.getElementById(\'options\').style.display = \'none\';
document.getElementById(\'img_plus_and_minus\').innerHTML=\' < img style = "vertical-align:middle;" src = "../img/div_show.gif" alt = "" / > '.get_lang('AdvancedParameters').'\';
}
}
function setFocus(){
$("#title_file").focus();
}
$(document).ready(function () {
setFocus();
});
< / script > ';
/**
* Obtains the text inside the file with the right parser
*/
function get_text_content($doc_path, $doc_mime) {
// TODO: review w$ compatibility
// use usual exec output lines array to store stdout instead of a temp file
// because we need to store it at RAM anyway before index on DokeosIndexer object
$ret_val = NULL;
switch ($doc_mime) {
case 'text/plain':
$handle = fopen($doc_path, "r");
$output = array(fread($handle, filesize($doc_path)));
fclose($handle);
break;
case 'application/pdf':
exec("pdftotext $doc_path -", $output, $ret_val);
break;
case 'application/postscript':
$temp_file = tempnam(sys_get_temp_dir(), 'dokeos');
exec("ps2pdf $doc_path $temp_file", $output, $ret_val);
if ($ret_val !== 0) { // shell fail, probably 127 (command not found)
return FALSE;
}
exec("pdftotext $temp_file -", $output, $ret_val);
unlink($temp_file);
var_dump($output);
break;
case 'application/msword':
exec("catdoc $doc_path", $output, $ret_val);
var_dump($output);
break;
case 'text/html':
exec("html2text $doc_path", $output, $ret_val);
break;
case 'text/rtf':
// note: correct handling of code pages in unrtf
// on debian lenny unrtf v0.19.2 can not, but unrtf v0.20.5 can
exec("unrtf --text $doc_path", $output, $ret_val);
if ($ret_val == 127) { // command not found
return FALSE;
}
// avoid index unrtf comments
if (is_array($output) & & count($output)>1) {
$parsed_output = array();
foreach ($output as $line) {
if (!preg_match('/^###/', $line, $matches)) {
if (!empty($line)) {
$parsed_output[] = $line;
}
}
}
$output = $parsed_output;
}
break;
case 'application/vnd.ms-powerpoint':
exec("catppt $doc_path", $output, $ret_val);
break;
case 'application/vnd.ms-excel':
exec("xls2csv -c\" \" $doc_path", $output, $ret_val);
break;
}
$content = '';
if (!is_null($ret_val)) {
if ($ret_val !== 0) { // shell fail, probably 127 (command not found)
return FALSE;
}
}
if (isset($output)) {
foreach ( $output as $line ) {
$content .= $line ."\n";
}
return $content;
}
else {
return FALSE;
}
}
// variables
$is_allowed_to_edit = api_is_allowed_to_edit(null,true);
$courseDir = $_course['path']."/document";
$sys_course_path = api_get_path(SYS_COURSE_PATH);
$base_work_dir = $sys_course_path.$courseDir;
$noPHP_SELF=true;
//what's the current path?
if(isset($_GET['curdirpath']) & & $_GET['curdirpath']!='')
{
$path = $_GET['curdirpath'];
}
elseif (isset($_POST['curdirpath']))
{
$path = $_POST['curdirpath'];
}
else
{
$path = '/';
}
//check the path: if the path is not found (no document id), set the path to /
if(!DocumentManager::get_document_id($_course,$path))
{
$path = '/';
}
//this needs cleaning!
if(isset($_SESSION['_gid']) & & $_SESSION['_gid']!='') //if the group id is set, check if the user has the right to be here
{
//needed for group related stuff
require_once api_get_path(LIBRARY_PATH).'groupmanager.lib.php';
//get group info
$group_properties = GroupManager::get_group_properties($_SESSION['_gid']);
$noPHP_SELF=true;
if($is_allowed_to_edit || GroupManager::is_user_in_group($_user['user_id'],$_SESSION['_gid'])) //only courseadmin or group members allowed
{
$to_group_id = $_SESSION['_gid'];
$req_gid = '& gidReq='.$_SESSION['_gid'];
$interbreadcrumb[]= array ("url"=>"../group/group_space.php?gidReq=".$_SESSION['_gid'], "name"=> get_lang('GroupSpace'));
}
else
{
api_not_allowed(true);
}
}
elseif($is_allowed_to_edit || is_my_shared_folder($_user['user_id'], $path)) //admin for "regular" upload, no group documents. And check if is my shared folder
{
$to_group_id = 0;
$req_gid = '';
}
else //no course admin and no group member...
{
api_not_allowed(true);
}
//group docs can only be uploaded in the group directory
if($to_group_id!=0 & & $path=='/')
{
$path = $group_properties['directory'];
}
//if we want to unzip a file, we need the library
if (isset($_POST['unzip']) & & $_POST['unzip'] == 1) {
require_once api_get_path(LIBRARY_PATH).'pclzip/pclzip.lib.php';
}
// variables
$max_filled_space = DocumentManager::get_course_quota();
// title of the tool
if($to_group_id !=0) //add group name after for group documents
{
$add_group_to_title = ' ('.$group_properties['name'].')';
}
$nameTools = get_lang('UplUploadDocument').$add_group_to_title;
// breadcrumbs
$interbreadcrumb[] = array('url' =>'./document.php?curdirpath='.urlencode($path).$req_gid, 'name'=> get_lang('Documents'));
// display the header
Display::display_header($nameTools, 'Doc');
/*
-----------------------------------------------------------
Here we do all the work
-----------------------------------------------------------
*/
//user has submitted a file
if(isset($_FILES['user_upload'])) {
//echo("< pre > ");
//print_r($_FILES['user_upload']);
//echo("< / pre > ");
$upload_ok = process_uploaded_file($_FILES['user_upload']);
if($upload_ok) {
//file got on the server without problems, now process it
$new_path = handle_uploaded_document($_course, $_FILES['user_upload'],$base_work_dir,$_POST['curdirpath'],$_user['user_id'],$to_group_id,$to_user_id,$max_filled_space,$_POST['unzip'],$_POST['if_exists']);
$new_comment = isset($_POST['comment']) ? trim($_POST['comment']) : '';
$new_title = isset($_POST['title']) ? trim($_POST['title']) : '';
if ($new_path & & ($new_comment || $new_title))
if (($docid = DocumentManager::get_document_id($_course, $new_path)))
{
$table_document = Database::get_course_table(TABLE_DOCUMENT);
$ct = '';
if ($new_comment) $ct .= ", comment='$new_comment'";
if ($new_title) $ct .= ", title='$new_title'";
Database::query("UPDATE $table_document SET" . substr($ct, 1) .
" WHERE id = '$docid'", __FILE__, __LINE__);
}
//showing message when sending zip files
if ($new_path === true & & $_POST['unzip'] == 1) {
Display::display_confirmation_message(get_lang('UplUploadSucceeded')."< br / > ",false);
}
if ( (api_get_setting('search_enabled')=='true') & & ($docid = DocumentManager::get_document_id($_course, $new_path))) {
$table_document = Database::get_course_table(TABLE_DOCUMENT);
$result = Database::query("SELECT * FROM $table_document WHERE id = '$docid' LIMIT 1", __FILE__, __LINE__);
if (Database::num_rows($result) == 1) {
$row = Database::fetch_array($result);
$doc_path = api_get_path(SYS_COURSE_PATH) . $courseDir. $row['path'];
//TODO: mime_content_type is deprecated, fileinfo php extension is enabled by default as of PHP 5.3.0
// now versions of PHP on Debian testing(5.2.6-5) and Ubuntu(5.2.6-2ubuntu) are lower, so wait for a while
$doc_mime = mime_content_type($doc_path);
//echo $doc_mime;
//TODO: more mime types
$allowed_mime_types = array('text/plain', 'application/pdf', 'application/postscript', 'application/msword', 'text/html', 'text/rtf', 'application/vnd.ms-powerpoint', 'application/vnd.ms-excel');
// mime_content_type does not detect correctly some formats that are going to be supported for index, so an extensions array is used by the moment
if (empty($doc_mime)) {
$allowed_extensions = array('ppt', 'pps', 'xls');
$extensions = preg_split("/[\/\\.]/", $doc_path) ;
$doc_ext = strtolower($extensions[count($extensions)-1]);
if (in_array($doc_ext, $allowed_extensions)) {
switch ($doc_ext) {
case 'ppt':
case 'pps':
$doc_mime = 'application/vnd.ms-powerpoint';
break;
case 'xls':
$doc_mime = 'application/vnd.ms-excel';
break;
}
}
}
if (in_array($doc_mime, $allowed_mime_types) & & isset($_POST['index_document']) & & $_POST['index_document']) {
$file_title = $row['title'];
$file_content = get_text_content($doc_path, $doc_mime);
$courseid = api_get_course_id();
isset($_POST['language'])? $lang=Database::escape_string($_POST['language']): $lang = 'english';
require_once api_get_path(LIBRARY_PATH).'search/DokeosIndexer.class.php';
require_once api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php';
$ic_slide = new IndexableChunk();
$ic_slide->addValue("title", $file_title);
$ic_slide->addCourseId($courseid);
$ic_slide->addToolId(TOOL_DOCUMENT);
$xapian_data = array(
SE_COURSE_ID => $courseid,
SE_TOOL_ID => TOOL_DOCUMENT,
SE_DATA => array('doc_id' => (int)$docid),
SE_USER => (int)api_get_user_id(),
);
$ic_slide->xapian_data = serialize($xapian_data);
$di = new DokeosIndexer();
$di->connectDb(NULL, NULL, $lang);
$specific_fields = get_specific_field_list();
// process different depending on what to do if file exists
/**
* FIXME: Find a way to really verify if the file had been
* overwriten. Now all work is done at
* handle_uploaded_document() and it's difficult to verify it
*/
if (!empty($_POST['if_exists']) & & $_POST['if_exists'] == 'overwrite') {
// overwrite the file on search engine
// actually, it consists on delete terms from db, insert new ones, create a new search engine document, and remove the old one
// get search_did
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, $courseid, TOOL_DOCUMENT, $docid);
$res = Database::query($sql, __FILE__, __LINE__);
if (Database::num_rows($res) > 0) {
$se_ref = Database::fetch_array($res);
$di->remove_document((int)$se_ref['search_did']);
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
delete_all_specific_field_value($courseid, $specific_field['id'], TOOL_DOCUMENT, $docid);
//update search engine
$sterms = trim($_REQUEST[$specific_field['code']]);
$all_specific_terms .= ' '. $sterms;
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$sterm = trim($sterm);
if (!empty($sterm)) {
$ic_slide->addTerm($sterm, $specific_field['code']);
add_specific_field_value($specific_field['id'], $courseid, TOOL_DOCUMENT, $docid, $value);
}
}
}
// add terms also to content to make terms findable by probabilistic search
$file_content = $all_specific_terms .' '. $file_content;
$ic_slide->addValue("content", $file_content);
$di->addChunk($ic_slide);
//index and return a new search engine document id
$did = $di->index();
if ($did) {
// update the search_did on db
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'UPDATE %s SET search_did=%d WHERE id=%d LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, (int)$did, (int)$se_ref['id']);
Database::query($sql,__FILE__,__LINE__);
}
}
} else {
// add all terms
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
if (isset($_REQUEST[$specific_field['code']])) {
$sterms = trim($_REQUEST[$specific_field['code']]);
$all_specific_terms .= ' '. $sterms;
if (!empty($sterms)) {
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$ic_slide->addTerm(trim($sterm), $specific_field['code']);
add_specific_field_value($specific_field['id'], $courseid, TOOL_DOCUMENT, $docid, $sterm);
}
}
}
}
// add terms also to content to make terms findable by probabilistic search
$file_content = $all_specific_terms .' '. $file_content;
$ic_slide->addValue("content", $file_content);
$di->addChunk($ic_slide);
//index and return search engine document id
$did = $di->index();
if ($did) {
// save it to db
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
VALUES (NULL , \'%s\', \'%s\', %s, %s)';
$sql = sprintf($sql, $tbl_se_ref, $courseid, TOOL_DOCUMENT, $docid, $did);
Database::query($sql,__FILE__,__LINE__);
}
}
}
}
}
//check for missing images in html files
$missing_files = check_for_missing_files($base_work_dir.$new_path);
if($missing_files)
{
//show a form to upload the missing files
Display::display_normal_message(build_missing_files_form($missing_files,$_POST['curdirpath'],$_FILES['user_upload']['name']),false);
}
}
}
//missing images are submitted
if(isset($_POST['submit_image']))
{
$number_of_uploaded_images = count($_FILES['img_file']['name']);
//if images are uploaded
if ($number_of_uploaded_images > 0)
{
//we could also create a function for this, I'm not sure...
//create a directory for the missing files
$img_directory = str_replace('.','_',$_POST['related_file']."_files");
$missing_files_dir = create_unexisting_directory($_course,$_user['user_id'],$to_group_id,$to_user_id,$base_work_dir,$img_directory);
//put the uploaded files in the new directory and get the paths
$paths_to_replace_in_file = move_uploaded_file_collection_into_directory($_course, $_FILES['img_file'],$base_work_dir,$missing_files_dir,$_user['user_id'],$to_group_id,$to_user_id,$max_filled_space);
//open the html file and replace the paths
replace_img_path_in_html_file($_POST['img_file_path'],$paths_to_replace_in_file,$base_work_dir.$_POST['related_file']);
//update parent folders
item_property_update_on_folder($_course,$_POST['curdirpath'],$_user['user_id']);
}
}
//they want to create a directory
if(isset($_POST['create_dir']) & & $_POST['dirname']!='')
{
$added_slash = ($path=='/')?'':'/';
$dir_name = $path.$added_slash.replace_dangerous_char($_POST['dirname']);
$created_dir = create_unexisting_directory($_course,$_user['user_id'],$to_group_id,$to_user_id,$base_work_dir,$dir_name,$_POST['dirname']);
if($created_dir)
{
Display::display_confirmation_message(get_lang('DirCr'),false);
$path = $created_dir;
}
else
{
display_error(get_lang('CannotCreateDir'));
}
}
//tracking not needed here?
//event_access_tool(TOOL_DOCUMENT);
/*============================================================================*/
?>
<?php
//=======================================//
//they want to create a new directory//
//=======================================//
if(isset($_GET['createdir']))
{
//create the form that asks for the directory name
$new_folder_text = '< form action = "'.api_get_self().'" method = "POST" > ';
$new_folder_text .= '< input type = "hidden" name = "curdirpath" value = "'.$path.'" / > ';
$new_folder_text .= get_lang('NewDir') .' ';
$new_folder_text .= '< input type = "text" name = "dirname" / > ';
$new_folder_text .= '< button type = "submit" class = "save" name = "create_dir" > '.get_lang('CreateFolder').'< / button > ';
$new_folder_text .= '< / form > ';
//show the form
//Display::display_normal_message($new_folder_text, false);
echo create_dir_form();
}
// actions
echo '< div class = "actions" > ';
// link back to the documents overview
echo '< a href = "document.php?curdirpath='.$path.'" > '.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('DocumentsOverview')).get_lang('BackTo').' '.get_lang('DocumentsOverview').'< / a > ';
// link to create a folder
if(!isset($_GET['createdir']) & & !is_my_shared_folder($_user['user_id'], $path))
{
echo '< a href = "'.api_get_self().'?path='.$path.'&createdir=1" > '.Display::return_icon('folder_new.gif', get_lang('CreateDir')).get_lang('CreateDir').'< / a > ';
}
echo '< / div > ';
//form to select directory
$folders = DocumentManager::get_all_document_folders($_course,$to_group_id,$is_allowed_to_edit);
echo(build_directory_selector($folders,$path,$group_properties['directory']));
?>
<!-- start upload form -->
<?php
$form = new FormValidator('upload','POST',api_get_self(),'','enctype="multipart/form-data"');
$form->addElement('hidden','curdirpath',$path);
$form->addElement('file','user_upload',get_lang('File'),'id="user_upload" size="45"');
if(api_get_setting('use_document_title')=='true') {
$form->addElement('text','title',get_lang('Title'),array('size'=>'20','style' => 'width:300px','id' => 'title_file'));
$form->addElement('textarea','comment',get_lang('Comment'),'wrap="virtual" style="width:300px;"');
}
//Advanced parameters
$form -> addElement('html','< div class = "row" >
< div class = "label" > < / div >
< div class = "formw" >
< a href = "javascript://" onclick = " return advanced_parameters()" > < span id = "img_plus_and_minus" > < div style = "vertical-align:top;" > < img style = "vertical-align:middle;" src = "../img/div_show.gif" alt = "" / > '.get_lang('AdvancedParameters').'< / div > < / span > < / a >
< / div >
< / div > ');
$form -> addElement('html','< div id = "options" style = "display:none" > ');
//check box options
$form->addElement('checkbox','unzip',get_lang('Options'),get_lang('Uncompress'),'onclick="check_unzip()" value="1"');
if(api_get_setting('search_enabled')=='true')
{
//TODO: include language file
$supported_formats = 'Supported formats for index: Text plain, PDF, Postscript, MS Word, HTML, RTF, MS Power Point';
$form -> addElement ('checkbox', 'index_document','', get_lang('SearchFeatureDoIndexDocument') . '< div style = "font-size: 80%" > '. $supported_formats .'< / div > ');
$form -> addElement ('html','< br / > < div class = "row" > ');
$form -> addElement ('html', '< div class = "label" > '. get_lang('SearchFeatureDocumentLanguage') .'< / div > ');
$form -> addElement ('html', '< div class = "formw" > '. api_get_languages_combo() .'< / div > ');
$form -> addElement ('html','< / div > < div class = "sub-form" > ');
$specific_fields = get_specific_field_list();
foreach ($specific_fields as $specific_field) {
$form -> addElement ('text', $specific_field['code'], $specific_field['name'].' : ');
}
$form -> addElement ('html','< / div > ');
}
$form->addElement('radio', 'if_exists', get_lang('UplWhatIfFileExists'), get_lang('UplDoNothing'), 'nothing');
$form->addElement('radio', 'if_exists', '', get_lang('UplOverwriteLong'), 'overwrite');
$form->addElement('radio', 'if_exists', '', get_lang('UplRenameLong'), 'rename');
//close the java script and avoid the footer up
$form -> addElement('html','< / div > ');
//button send document
$form->addElement('style_submit_button', 'submitDocument', get_lang('SendDocument'),'class="upload"');
$form->add_real_progress_bar('DocumentUpload','user_upload');
$defaults = array('index_document'=>'checked="checked"');
$form->setDefaults($defaults);
$form->display();
?>
<!-- end upload form -->
<?php
// footer
Display::display_footer();
?>
