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602 lines
22 KiB
602 lines
22 KiB
<?php // $Id: upload.php 17608 2009-01-08 23:26:20Z marvil07 $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2005 Dokeos S.A.
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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Copyright (c) various contributors
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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* Main script for the documents tool
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*
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* This script allows the user to manage files and directories on a remote http server.
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*
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* The user can : - navigate through files and directories.
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* - upload a file
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* - delete, copy a file or a directory
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* - edit properties & content (name, comments, html content)
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*
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* The script is organised in four sections.
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*
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* 1) Execute the command called by the user
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* Note: somme commands of this section are organised in two steps.
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* The script always begins with the second step,
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* so it allows to return more easily to the first step.
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*
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* Note (March 2004) some editing functions (renaming, commenting)
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* are moved to a separate page, edit_document.php. This is also
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* where xml and other stuff should be added.
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*
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* 2) Define the directory to display
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*
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* 3) Read files and directories from the directory defined in part 2
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* 4) Display all of that on an HTML page
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*
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* @todo eliminate code duplication between
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* document/document.php, scormdocument.php
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*
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* @package dokeos.document
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==============================================================================
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*/
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/*
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==============================================================================
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INIT SECTION
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==============================================================================
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*/
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// name of the language file that needs to be included
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$language_file = 'document';
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// global settings initialisation
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// also provides access to main api (inc/lib/main_api.lib.php)
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include("../inc/global.inc.php");
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include('document.inc.php');
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$htmlHeadXtra[] =
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"<script type=\"text/javascript\">
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<!-- //
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function check_unzip() {
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if(document.upload.unzip.checked==true){
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document.upload.if_exists[0].disabled=true;
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document.upload.if_exists[1].checked=true;
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document.upload.if_exists[2].disabled=true;
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}
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else {
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document.upload.if_exists[0].checked=true;
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document.upload.if_exists[0].disabled=false;
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document.upload.if_exists[2].disabled=false;
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}
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}
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// -->
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</script>";
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/**
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* Obtains the text inside the file with the right parser
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*/
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function get_text_content($doc_path, $doc_mime) {
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// TODO: review w$ compatibility
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// use usual exec output lines array to store stdout instead of a temp file
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// because we need to store it at RAM anyway before index on DokeosIndexer object
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$ret_val = NULL;
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switch ($doc_mime) {
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case 'text/plain':
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$handle = fopen($doc_path, "r");
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$output = array(fread($handle, filesize($doc_path)));
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fclose($handle);
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break;
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case 'application/pdf':
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exec("pdftotext $doc_path -", $output, $ret_val);
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break;
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case 'application/postscript':
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$temp_file = tempnam(sys_get_temp_dir(), 'dokeos');
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exec("ps2pdf $doc_path $temp_file", $output, $ret_val);
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if ($ret_val !== 0) { // shell fail, probably 127 (command not found)
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return FALSE;
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}
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exec("pdftotext $temp_file -", $output, $ret_val);
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unlink($temp_file);
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var_dump($output);
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break;
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case 'application/msword':
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exec("catdoc $doc_path", $output, $ret_val);
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var_dump($output);
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break;
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case 'text/html':
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exec("html2text $doc_path", $output, $ret_val);
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break;
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case 'text/rtf':
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// note: correct handling of code pages in unrtf
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// on debian lenny unrtf v0.19.2 can not, but unrtf v0.20.5 can
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exec("unrtf --text $doc_path", $output, $ret_val);
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if ($ret_val == 127) { // command not found
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return FALSE;
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}
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// avoid index unrtf comments
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if (is_array($output) && count($output)>1) {
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$parsed_output = array();
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foreach ($output as $line) {
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if (!preg_match('/^###/', $line, $matches)) {
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if (!empty($line)) {
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$parsed_output[] = $line;
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}
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}
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}
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$output = $parsed_output;
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}
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break;
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case 'application/vnd.ms-powerpoint':
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exec("catppt $doc_path", $output, $ret_val);
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break;
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case 'application/vnd.ms-excel':
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exec("xls2csv -c\" \" $doc_path", $output, $ret_val);
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break;
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}
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$content = '';
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if (!is_null($ret_val)) {
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if ($ret_val !== 0) { // shell fail, probably 127 (command not found)
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return FALSE;
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}
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}
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if (isset($output)) {
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foreach ( $output as $line ) {
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$content .= $line ."\n";
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}
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return $content;
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}
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else {
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return FALSE;
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}
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}
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/*
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-----------------------------------------------------------
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Variables
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- some need defining before inclusion of libraries
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-----------------------------------------------------------
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*/
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$is_allowed_to_edit = api_is_allowed_to_edit();
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$courseDir = $_course['path']."/document";
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$sys_course_path = api_get_path(SYS_COURSE_PATH);
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$base_work_dir = $sys_course_path.$courseDir;
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$noPHP_SELF=true;
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//this needs cleaning!
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if(isset($_SESSION['_gid']) && $_SESSION['_gid']!='') //if the group id is set, check if the user has the right to be here
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{
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//needed for group related stuff
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include_once(api_get_path(LIBRARY_PATH) . 'groupmanager.lib.php');
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//get group info
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$group_properties = GroupManager::get_group_properties($_SESSION['_gid']);
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$noPHP_SELF=true;
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if($is_allowed_to_edit || GroupManager::is_user_in_group($_user['user_id'],$_SESSION['_gid'])) //only courseadmin or group members allowed
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{
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$to_group_id = $_SESSION['_gid'];
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$req_gid = '&gidReq='.$_SESSION['_gid'];
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$interbreadcrumb[]= array ("url"=>"../group/group_space.php?gidReq=".$_SESSION['_gid'], "name"=> get_lang('GroupSpace'));
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}
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else
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{
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api_not_allowed(true);
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}
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}
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elseif($is_allowed_to_edit) //admin for "regular" upload, no group documents
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{
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$to_group_id = 0;
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$req_gid = '';
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}
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else //no course admin and no group member...
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{
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api_not_allowed(true);
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}
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//what's the current path?
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if(isset($_GET['path']) && $_GET['path']!='')
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{
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$path = $_GET['path'];
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}
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elseif (isset($_POST['curdirpath']))
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{
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$path = $_POST['curdirpath'];
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}
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else
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{
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$path = '/';
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}
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/*
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-----------------------------------------------------------
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Libraries
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-----------------------------------------------------------
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*/
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//many useful functions in main_api.lib.php, by default included
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include_once(api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php');
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include_once(api_get_path(LIBRARY_PATH) . 'events.lib.inc.php');
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include_once(api_get_path(LIBRARY_PATH) . 'document.lib.php');
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require_once(api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php');
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//check the path
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//if the path is not found (no document id), set the path to /
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if(!DocumentManager::get_document_id($_course,$path))
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{
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$path = '/';
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}
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//group docs can only be uploaded in the group directory
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if($to_group_id!=0 && $path=='/')
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{
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$path = $group_properties['directory'];
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}
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//if we want to unzip a file, we need the library
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if (isset($_POST['unzip']) && $_POST['unzip'] == 1)
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{
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include(api_get_path(LIBRARY_PATH).'pclzip/pclzip.lib.php');
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}
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/*
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-----------------------------------------------------------
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Variables
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-----------------------------------------------------------
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*/
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$max_filled_space = DocumentManager::get_course_quota();
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/*
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-----------------------------------------------------------
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Header
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-----------------------------------------------------------
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*/
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$nameTools = get_lang('UplUploadDocument');
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$interbreadcrumb[]=array("url"=>"./document.php?curdirpath=".urlencode($path).$req_gid, "name"=> $langDocuments);
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Display::display_header($nameTools,"Doc");
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if($to_group_id !=0) //add group name after for group documents
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{
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$add_group_to_title = ' ('.$group_properties['name'].')';
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}
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//show the title
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api_display_tool_title($nameTools.$add_group_to_title);
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/*
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-----------------------------------------------------------
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Here we do all the work
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-----------------------------------------------------------
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*/
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//user has submitted a file
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if(isset($_FILES['user_upload']))
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{
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//echo("<pre>");
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//print_r($_FILES['user_upload']);
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//echo("</pre>");
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$upload_ok = process_uploaded_file($_FILES['user_upload']);
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if($upload_ok)
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{
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//file got on the server without problems, now process it
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$new_path = handle_uploaded_document($_course, $_FILES['user_upload'],$base_work_dir,$_POST['curdirpath'],$_user['user_id'],$to_group_id,$to_user_id,$max_filled_space,$_POST['unzip'],$_POST['if_exists']);
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$new_comment = isset($_POST['comment']) ? trim($_POST['comment']) : '';
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$new_title = isset($_POST['title']) ? trim($_POST['title']) : '';
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if ($new_path && ($new_comment || $new_title))
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if (($docid = DocumentManager::get_document_id($_course, $new_path)))
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{
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$table_document = Database::get_course_table(TABLE_DOCUMENT);
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$ct = '';
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if ($new_comment) $ct .= ", comment='$new_comment'";
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if ($new_title) $ct .= ", title='$new_title'";
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api_sql_query("UPDATE $table_document SET" . substr($ct, 1) .
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" WHERE id = '$docid'", __FILE__, __LINE__);
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}
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if ( (api_get_setting('search_enabled')=='true') && ($docid = DocumentManager::get_document_id($_course, $new_path))) {
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$table_document = Database::get_course_table(TABLE_DOCUMENT);
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$result = api_sql_query("SELECT * FROM $table_document WHERE id = '$docid' LIMIT 1", __FILE__, __LINE__);
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if (mysql_num_rows($result) == 1) {
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$row = mysql_fetch_array($result);
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$doc_path = api_get_path(SYS_COURSE_PATH) . $courseDir. $row['path'];
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//TODO: mime_content_type is deprecated, fileinfo php extension is enabled by default as of PHP 5.3.0
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// now versions of PHP on Debian testing(5.2.6-5) and Ubuntu(5.2.6-2ubuntu) are lower, so wait for a while
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$doc_mime = mime_content_type($doc_path);
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//echo $doc_mime;
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//TODO: more mime types
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$allowed_mime_types = array('text/plain', 'application/pdf', 'application/postscript', 'application/msword', 'text/html', 'text/rtf', 'application/vnd.ms-powerpoint', 'application/vnd.ms-excel');
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// 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
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if (empty($doc_mime)) {
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$allowed_extensions = array('ppt', 'pps', 'xls');
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$extensions = preg_split("/[\/\\.]/", $doc_path) ;
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$doc_ext = $extensions[count($extensions)-1];
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if (in_array($doc_ext, $allowed_extensions)) {
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switch ($doc_ext) {
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case 'ppt':
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case 'pps':
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$doc_mime = 'application/vnd.ms-powerpoint';
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break;
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case 'xls':
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$doc_mime = 'application/vnd.ms-excel';
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break;
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}
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}
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}
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if (in_array($doc_mime, $allowed_mime_types) && isset($_POST['index_document']) && $_POST['index_document']) {
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$file_title = $row['title'];
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$file_content = get_text_content($doc_path, $doc_mime);
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$courseid = api_get_course_id();
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isset($_POST['language'])? $lang=Database::escape_string($_POST['language']): $lang = 'english';
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require_once(api_get_path(LIBRARY_PATH).'search/DokeosIndexer.class.php');
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require_once(api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php');
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$ic_slide = new IndexableChunk();
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$ic_slide->addValue("title", $file_title);
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$ic_slide->addCourseId($courseid);
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$ic_slide->addToolId(TOOL_DOCUMENT);
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$xapian_data = array(
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SE_COURSE_ID => $courseid,
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SE_TOOL_ID => TOOL_DOCUMENT,
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SE_DATA => array('doc_id' => (int)$docid),
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SE_USER => (int)api_get_user_id(),
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);
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$ic_slide->xapian_data = serialize($xapian_data);
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$di = new DokeosIndexer();
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$di->connectDb(NULL, NULL, $lang);
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$specific_fields = get_specific_field_list();
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// process different depending on what to do if file exists
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/**
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* FIXME: Find a way to really verify if the file had been
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* overwriten. Now all work is done at
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* handle_uploaded_document() and it's difficult to verify it
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*/
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if (!empty($_POST['if_exists']) && $_POST['if_exists'] == 'overwrite') {
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// overwrite the file on search engine
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// actually, it consists on delete terms from db, insert new ones, create a new search engine document, and remove the old one
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// get search_did
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$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
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$sql = sprintf($sql, $tbl_se_ref, $courseid, TOOL_DOCUMENT, $docid);
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$res = api_sql_query($sql, __FILE__, __LINE__);
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if (Database::num_rows($res) > 0) {
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$se_ref = Database::fetch_array($res);
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$di->remove_document((int)$se_ref['search_did']);
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$all_specific_terms = '';
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foreach ($specific_fields as $specific_field) {
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delete_all_specific_field_value($courseid, $specific_field['id'], TOOL_DOCUMENT, $docid);
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//update search engine
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$sterms = trim($_REQUEST[$specific_field['code']]);
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$all_specific_terms .= ' '. $sterms;
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$sterms = explode(',', $sterms);
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foreach ($sterms as $sterm) {
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$sterm = trim($sterm);
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if (!empty($sterm)) {
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$ic_slide->addTerm($sterm, $specific_field['code']);
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add_specific_field_value($specific_field['id'], $courseid, TOOL_DOCUMENT, $docid, $value);
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}
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}
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}
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// add terms also to content to make terms findable by probabilistic search
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$file_content = $all_specific_terms .' '. $file_content;
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$ic_slide->addValue("content", $file_content);
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$di->addChunk($ic_slide);
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//index and return a new search engine document id
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$did = $di->index();
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if ($did) {
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// update the search_did on db
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$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'UPDATE %s SET search_did=%d WHERE id=%d LIMIT 1';
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$sql = sprintf($sql, $tbl_se_ref, (int)$did, (int)$se_ref['id']);
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api_sql_query($sql,__FILE__,__LINE__);
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}
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}
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}
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else {
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// add all terms
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$all_specific_terms = '';
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foreach ($specific_fields as $specific_field) {
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if (isset($_REQUEST[$specific_field['code']])) {
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$sterms = trim($_REQUEST[$specific_field['code']]);
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$all_specific_terms .= ' '. $sterms;
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if (!empty($sterms)) {
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$sterms = explode(',', $sterms);
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foreach ($sterms as $sterm) {
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$ic_slide->addTerm(trim($sterm), $specific_field['code']);
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add_specific_field_value($specific_field['id'], $courseid, TOOL_DOCUMENT, $docid, $sterm);
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}
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}
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}
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}
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// add terms also to content to make terms findable by probabilistic search
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$file_content = $all_specific_terms .' '. $file_content;
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$ic_slide->addValue("content", $file_content);
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$di->addChunk($ic_slide);
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//index and return search engine document id
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$did = $di->index();
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if ($did) {
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// save it to db
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$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
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VALUES (NULL , \'%s\', \'%s\', %s, %s)';
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$sql = sprintf($sql, $tbl_se_ref, $courseid, TOOL_DOCUMENT, $docid, $did);
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api_sql_query($sql,__FILE__,__LINE__);
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}
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}
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}
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}
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}
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//check for missing images in html files
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$missing_files = check_for_missing_files($base_work_dir.$new_path);
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if($missing_files)
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{
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//show a form to upload the missing files
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Display::display_normal_message(build_missing_files_form($missing_files,$_POST['curdirpath'],$_FILES['user_upload']['name']),false);
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}
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}
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}
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//missing images are submitted
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if(isset($_POST['submit_image']))
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{
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$number_of_uploaded_images = count($_FILES['img_file']['name']);
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//if images are uploaded
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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 .= '<input type="submit" name="create_dir" value="'.get_lang('Ok').'"/>';
|
|
$new_folder_text .= '</form>';
|
|
//show the form
|
|
Display::display_normal_message($new_folder_text, false);
|
|
}
|
|
else { //give them a link to create a directory
|
|
?>
|
|
<p><a href="<?php echo api_get_self(); ?>?path=<?php echo $path; ?>&createdir=1"><img src="../img/folder_new.gif" border="0" align="absmiddle" alt ="" /> <?php echo(get_lang('CreateDir'));?></a></p>
|
|
<?php
|
|
}
|
|
?>
|
|
|
|
<div id="folderselector">
|
|
<?php
|
|
//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']));
|
|
?>
|
|
</div>
|
|
|
|
<!-- start upload form -->
|
|
|
|
<?php
|
|
|
|
require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.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(get_setting('use_document_title')=='true')
|
|
{
|
|
$form->addElement('text','title',get_lang('Title'),'size="20" style="width:300px;"');
|
|
$form->addElement('textarea','comment',get_lang('Comment'),'wrap="virtual" style="width:300px;"');
|
|
}
|
|
|
|
$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');
|
|
|
|
$form->addElement('submit', 'submitDocument', get_lang('Ok'));
|
|
|
|
$form->add_real_progress_bar('DocumentUpload','user_upload');
|
|
|
|
$defaults = array('index_document'=>'checked="checked"');
|
|
$form->setDefaults($defaults);
|
|
|
|
$form->display();
|
|
|
|
?>
|
|
|
|
<!-- end upload form -->
|
|
|
|
<!-- so they can get back to the documents -->
|
|
<p><?php echo (get_lang('Back'));?> <?php echo (get_lang('To'));?> <a href="document.php?curdirpath=<?php echo $path; ?>"><?php echo (get_lang('DocumentsOverview'));?></a></p>
|
|
|
|
<?php
|
|
/*
|
|
==============================================================================
|
|
FOOTER
|
|
==============================================================================
|
|
*/
|
|
Display::display_footer();
|
|
?>
|
|
|