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- <?php
- /* For licensing terms, see /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 initialization 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(), 'chamilo');
- 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'];
- }
- //I'm in the certification module?
- $is_certificate_mode = false;
- $is_certificate_array = explode('/',$path);
- array_shift($is_certificate_array);
- if ($is_certificate_array[0]=='certificates') {
- $is_certificate_mode = true;
- }
- // If we want to unzip a file, we need the library
- if (isset($_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'].')';
- }
- if (isset($_REQUEST['certificate'])) {
- $nameTools = get_lang('UploadCertificate').$add_group_to_title;
- } else {
- $nameTools = get_lang('UplUploadDocument').$add_group_to_title;
- }
- // Breadcrumbs
- if ($is_certificate_mode)
- $interbreadcrumb[]= array ( 'url' => '../gradebook/'.$_SESSION['gradebook_dest'], 'name' => get_lang('Gradebook'));
- else
- $interbreadcrumb[] = array('url' =>'./document.php?curdirpath='.urlencode($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 = '$docid'");
- }
- }
- // Showing message when sending zip files
- if ($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");
- 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();
- $lang = isset($_POST['language']) ? Database::escape_string($_POST['language']) : '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);
- 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);
- }
- }
- } 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);
- }
- }
- }
- }
- }
- // 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 = $created_dir;
- } else {
- display_error(get_lang('CannotCreateDir'));
- }
- }
- // Tracking not needed here?
- //event_access_tool(TOOL_DOCUMENT);
- /* They want to create a new directory */
- if (isset($_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
- if ($is_certificate_mode)
- echo '<a href="document.php?curdirpath='.$path.'&selectcat=' . Security::remove_XSS($_GET['selectcat']).'">'.Display::return_icon('back.png',get_lang('Back').' '.get_lang('To').' '.get_lang('CertificateOverview')).get_lang('Back').' '.get_lang('To').' '.get_lang('CertificateOverview').'</a>';
- else
- echo '<a href="document.php?curdirpath='.$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'], $path) && !$is_certificate_mode)
- {
- 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);
- if (!$is_certificate_mode)
- echo(build_directory_selector($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="javascript: 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();
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