* Init request vars
*/
if (!empty($_REQUEST['relativePath']) && $_REQUEST['relativePath'] != '/' && $_REQUEST['relativePath'] != '.') {
$relativePath = str_replace('..', '', $_REQUEST['relativePath']) . '/';
} else {
$relativePath = '/';
}
/*
* Handle upload
*/
if ($is_allowedToEdit && isset($_FILES['sentFile']['tmp_name']) && is_uploaded_file($_FILES['sentFile']['tmp_name'])) {
$imgFile = $_FILES['sentFile'];
$imgFile['name'] = replace_dangerous_char($imgFile['name'], 'strict');
$imgFile['name'] = get_secure_file_name($imgFile['name']);
if (claro_is_in_a_course()) {
$enoughSize = enough_size($_FILES['sentFile']['size'], $pathSys, $maxFilledSpace);
} else {
$enoughSize = true;
}
if (is_image($imgFile['name']) && $enoughSize) {
// rename if file already exists
if (file_exists($pathSys . $relativePath . $imgFile['name'])) {
$pieceList = explode('.', $imgFile['name']);
$base = $pieceList[0];
$ext = $pieceList[1];
$i = 1;
while (file_exists($pathSys . $relativePath . $base . '_' . $i . '.' . $ext)) {
$i++;
}
$imgFile['name'] = $base . '_' . $i . '.' . $ext;
$alertMessage = get_lang('A file with this name already exists.') . "\n" . get_lang('Your file has been renamed to %filename', array('%filename' => $imgFile['name']));
// this line will be removed if an error occurs
$rankMax = 1 + intval(Database::get()->querySingle("SELECT MAX(`rank`) AS max\n FROM `lp_learnPath` WHERE `course_id` = ?d", $course_id)->max);
$tempPathId = Database::get()->query("INSERT INTO `lp_learnPath`\n (`course_id`, `name`,`visible`,`rank`,`comment`)\n VALUES (?d, ?s, 0, ?d,'')", $course_id, $lpName, $rankMax)->lastInsertID;
$baseWorkDir .= "path_" . $tempPathId;
if (!is_dir($baseWorkDir)) {
claro_mkdir($baseWorkDir, CLARO_FILE_PERMISSIONS);
}
// unzip package
require_once "include/pclzip/pclzip.lib.php";
/*
* Check if the file is valid (not to big and exists)
*/
if (!isset($_FILES['uploadedPackage']) || !is_uploaded_file($_FILES['uploadedPackage']['tmp_name'])) {
$errorFound = true;
array_push($errorMsgs, $langFileScormError);
} elseif (!enough_size($_FILES['uploadedPackage']['size'], $baseWorkDir, $maxFilledSpace)) {
$errorFound = true;
array_push($errorMsgs, $langNoSpace);
} elseif (preg_match("/.zip\$/i", $_FILES['uploadedPackage']['name'])) {
array_push($okMsgs, $langOkFileReceived . basename($_FILES['uploadedPackage']['name']));
if (!function_exists('gzopen')) {
$errorFound = true;
array_push($errorMsgs, $langErrorNoZlibExtension);
} else {
$zipFile = new pclZip($_FILES['uploadedPackage']['tmp_name']);
$is_allowedToUnzip = true;
// default initialisation
// Check the zip content (real size and file extension)
$zipContentArray = $zipFile->listContent();
if ($zipContentArray == 0) {
$errorFound = true;
/**
* Imports a zip file (presumably AICC) into the Dokeos structure
* @param string Zip file info as given by $_FILES['userFile']
* @return string Absolute path to the AICC config files directory or empty string on error
*/
function import_package($zip_file_info, $current_dir = '')
{
if ($this->debug > 0) {
error_log('In aicc::import_package(' . print_r($zip_file_info, true) . ',"' . $current_dir . '") method', 0);
}
//ini_set('error_log','E_ALL');
$maxFilledSpace = 1000000000;
$zip_file_path = $zip_file_info['tmp_name'];
$zip_file_name = $zip_file_info['name'];
if ($this->debug > 0) {
error_log('New LP - aicc::import_package() - Zip file path = ' . $zip_file_path . ', zip file name = ' . $zip_file_name, 0);
}
$course_rel_dir = api_get_course_path() . '/scorm';
//scorm dir web path starting from /courses
$course_sys_dir = api_get_path(SYS_COURSE_PATH) . $course_rel_dir;
//absolute system path for this course
$current_dir = replace_dangerous_char(trim($current_dir), 'strict');
//current dir we are in, inside scorm/
if ($this->debug > 0) {
error_log('New LP - aicc::import_package() - Current_dir = ' . $current_dir, 0);
}
//$uploaded_filename = $_FILES['userFile']['name'];
//get name of the zip file without the extension
if ($this->debug > 0) {
error_log('New LP - aicc::import_package() - Received zip file name: ' . $zip_file_path, 0);
}
$file_info = pathinfo($zip_file_name);
$filename = $file_info['basename'];
$extension = $file_info['extension'];
$file_base_name = str_replace('.' . $extension, '', $filename);
//filename without its extension
$this->zipname = $file_base_name;
//save for later in case we don't have a title
if ($this->debug > 0) {
error_log('New LP - aicc::import_package() - Base file name is : ' . $file_base_name, 0);
}
$new_dir = replace_dangerous_char(trim($file_base_name), 'strict');
$this->subdir = $new_dir;
if ($this->debug > 0) {
error_log('New LP - aicc::import_package() - Subdir is first set to : ' . $this->subdir, 0);
}
/*
if( check_name_exist($course_sys_dir.$current_dir."/".$new_dir) )
{
$dialogBox = get_lang('FileExists');
$stopping_error = true;
}
*/
$zipFile = new pclZip($zip_file_path);
// Check the zip content (real size and file extension)
$zipContentArray = $zipFile->listContent();
$package_type = '';
//the type of the package. Should be 'aicc' after the next few lines
$package = '';
//the basename of the config files (if 'courses.crs' => 'courses')
$at_root = false;
//check if the config files are at zip root
$config_dir = '';
//the directory in which the config files are. May remain empty
$files_found = array();
$subdir_isset = false;
//the following loop should be stopped as soon as we found the right config files (.crs, .au, .des and .cst)
foreach ($zipContentArray as $thisContent) {
if (preg_match('~.(php.*|phtml)$~i', $thisContent['filename'])) {
//if a php file is found, do not authorize (security risk)
if ($this->debug > 1) {
error_log('New LP - aicc::import_package() - Found unauthorized file: ' . $thisContent['filename'], 0);
}
return api_failure::set_failure('php_file_in_zip_file');
} elseif (preg_match('?.*/aicc/$?', $thisContent['filename'])) {
//if a directory named 'aicc' is found, package type = aicc, but continue
//because we need to find the right AICC files
if ($this->debug > 1) {
error_log('New LP - aicc::import_package() - Found aicc directory: ' . $thisContent['filename'], 0);
}
$package_type = 'aicc';
} else {
//else, look for one of the files we're searching for (something.crs case insensitive)
$res = array();
if (preg_match('?^(.*)\\.(crs|au|des|cst|ore|pre|cmp)$?i', $thisContent['filename'], $res)) {
if ($this->debug > 1) {
error_log('New LP - aicc::import_package() - Found AICC config file: ' . $thisContent['filename'] . '. Now splitting: ' . $res[1] . ' and ' . $res[2], 0);
}
if ($thisContent['filename'] == basename($thisContent['filename'])) {
if ($this->debug > 2) {
error_log('New LP - aicc::import_package() - ' . $thisContent['filename'] . ' is at root level', 0);
}
$at_root = true;
if (!is_array($files_found[$res[1]])) {
$files_found[$res[1]] = $this->config_exts;
//initialise list of expected extensions (defined in class definition)
}
$files_found[$res[1]][strtolower($res[2])] = $thisContent['filename'];
$subdir_isset = true;
} else {
if (!$subdir_isset) {
if (preg_match('?^.*/aicc$?i', dirname($thisContent['filename']))) {
//echo "Cutting subdir<br/>";
$this->subdir .= '/' . substr(dirname($thisContent['filename']), 0, -5);
} else {
//echo "Not cutting subdir<br/>";
$this->subdir .= '/' . dirname($thisContent['filename']);
}
$subdir_isset = true;
}
if ($this->debug > 2) {
error_log('New LP - aicc::import_package() - ' . $thisContent['filename'] . ' is not at root level - recording subdir ' . $this->subdir, 0);
}
$config_dir = dirname($thisContent['filename']);
//just the relative directory inside scorm/
if (!is_array($files_found[basename($res[1])])) {
$files_found[basename($res[1])] = $this->config_exts;
}
$files_found[basename($res[1])][strtolower($res[2])] = basename($thisContent['filename']);
}
$package_type = 'aicc';
} else {
if ($this->debug > 3) {
error_log('New LP - aicc::import_package() - File ' . $thisContent['filename'] . ' didnt match any check', 0);
}
}
}
$realFileSize += $thisContent['size'];
}
if ($this->debug > 2) {
error_log('New LP - aicc::import_package() - $files_found: ' . print_r($files_found, true), 0);
}
if ($this->debug > 1) {
error_log('New LP - aicc::import_package() - Package type is now ' . $package_type, 0);
}
$mandatory = false;
foreach ($files_found as $file_name => $file_exts) {
$temp = (!empty($files_found[$file_name]['crs']) and !empty($files_found[$file_name]['au']) and !empty($files_found[$file_name]['des']) and !empty($files_found[$file_name]['cst']));
if ($temp) {
if ($this->debug > 1) {
error_log('New LP - aicc::import_package() - Found all config files for ' . $file_name, 0);
}
$mandatory = true;
$package = $file_name;
//store base config file name for reuse in parse_config_files()
$this->config_basename = $file_name;
//store filenames for reuse in parse_config_files()
$this->config_files = $files_found[$file_name];
//get out, we only want one config files set
break;
}
}
if ($package_type == '' or $mandatory != true) {
return api_failure::set_failure('not_aicc_content');
}
if (!enough_size($realFileSize, $course_sys_dir, $maxFilledSpace)) {
return api_failure::set_failure('not_enough_space');
}
// it happens on Linux that $new_dir sometimes doesn't start with '/'
if ($new_dir[0] != '/') {
$new_dir = '/' . $new_dir;
}
//cut trailing slash
if ($new_dir[strlen($new_dir) - 1] == '/') {
$new_dir = substr($new_dir, 0, -1);
}
/*
--------------------------------------
Uncompressing phase
--------------------------------------
*/
/*
We need to process each individual file in the zip archive to
- add it to the database
- parse & change relative html links
- make sure the filenames are secure (filter funny characters or php extensions)
*/
if (is_dir($course_sys_dir . $new_dir) or @mkdir($course_sys_dir . $new_dir)) {
// PHP method - slower...
if ($this->debug >= 1) {
error_log('New LP - Changing dir to ' . $course_sys_dir . $new_dir, 0);
}
$saved_dir = getcwd();
chdir($course_sys_dir . $new_dir);
$unzippingState = $zipFile->extract();
for ($j = 0; $j < count($unzippingState); $j++) {
$state = $unzippingState[$j];
//TODO fix relative links in html files (?)
$extension = strrchr($state["stored_filename"], ".");
//if($this->debug>1){error_log('New LP - found extension '.$extension.' in '.$state['stored_filename'],0);}
}
if (!empty($new_dir)) {
$new_dir = $new_dir . '/';
}
//rename files, for example with \\ in it
if ($dir = @opendir($course_sys_dir . $new_dir)) {
if ($this->debug == 1) {
error_log('New LP - Opened dir ' . $course_sys_dir . $new_dir, 0);
}
while ($file = readdir($dir)) {
if ($file != '.' && $file != '..') {
$filetype = "file";
if (is_dir($course_sys_dir . $new_dir . $file)) {
$filetype = "folder";
}
//TODO RENAMING FILES CAN BE VERY DANGEROUS AICC-WISE, avoid that as much as possible!
//$safe_file=replace_dangerous_char($file,'strict');
$find_str = array('\\', '.php', '.phtml');
$repl_str = array('/', '.txt', '.txt');
$safe_file = str_replace($find_str, $repl_str, $file);
if ($safe_file != $file) {
//@rename($course_sys_dir.$new_dir,$course_sys_dir.'/'.$safe_file);
$mydir = dirname($course_sys_dir . $new_dir . $safe_file);
if (!is_dir($mydir)) {
$mysubdirs = split('/', $mydir);
$mybasedir = '/';
foreach ($mysubdirs as $mysubdir) {
if (!empty($mysubdir)) {
$mybasedir = $mybasedir . $mysubdir . '/';
if (!is_dir($mybasedir)) {
@mkdir($mybasedir);
if ($this->debug == 1) {
error_log('New LP - Dir ' . $mybasedir . ' doesnt exist. Creating.', 0);
}
}
}
}
}
@rename($course_sys_dir . $new_dir . $file, $course_sys_dir . $new_dir . $safe_file);
if ($this->debug == 1) {
error_log('New LP - Renaming ' . $course_sys_dir . $new_dir . $file . ' to ' . $course_sys_dir . $new_dir . $safe_file, 0);
}
}
//set_default_settings($course_sys_dir,$safe_file,$filetype);
}
}
closedir($dir);
chdir($saved_dir);
}
} else {
return '';
}
return $course_sys_dir . $new_dir . $config_dir;
}
/**
* Imports a zip file into the Chamilo structure
* @param string $zip_file_info Zip file info as given by $_FILES['userFile']
* @return string $current_dir Absolute path to the imsmanifest.xml file or empty string on error
*/
public function import_package($zip_file_info, $current_dir = '')
{
if ($this->debug > 0) {
error_log('In scorm::import_package(' . print_r($zip_file_info, true) . ',"' . $current_dir . '") method', 0);
}
$maxFilledSpace = DocumentManager::get_course_quota();
$zip_file_path = $zip_file_info['tmp_name'];
$zip_file_name = $zip_file_info['name'];
if ($this->debug > 1) {
error_log('New LP - import_package() - zip file path = ' . $zip_file_path . ', zip file name = ' . $zip_file_name, 0);
}
$course_rel_dir = api_get_course_path() . '/scorm';
// scorm dir web path starting from /courses
$course_sys_dir = api_get_path(SYS_COURSE_PATH) . $course_rel_dir;
// Absolute system path for this course.
$current_dir = api_replace_dangerous_char(trim($current_dir));
// Current dir we are in, inside scorm/
if ($this->debug > 1) {
error_log('New LP - import_package() - current_dir = ' . $current_dir, 0);
}
// Get name of the zip file without the extension.
if ($this->debug > 1) {
error_log('New LP - Received zip file name: ' . $zip_file_path, 0);
}
$file_info = pathinfo($zip_file_name);
$filename = $file_info['basename'];
$extension = $file_info['extension'];
$file_base_name = str_replace('.' . $extension, '', $filename);
// Filename without its extension.
$this->zipname = $file_base_name;
// Save for later in case we don't have a title.
if ($this->debug > 1) {
error_log("New LP - base file name is : " . $file_base_name, 0);
}
$new_dir = api_replace_dangerous_char(trim($file_base_name));
$this->subdir = $new_dir;
if ($this->debug > 1) {
error_log("New LP - subdir is first set to : " . $this->subdir, 0);
}
$zipFile = new PclZip($zip_file_path);
// Check the zip content (real size and file extension).
$zipContentArray = $zipFile->listContent();
$package_type = '';
$at_root = false;
$manifest = '';
$manifest_list = array();
// The following loop should be stopped as soon as we found the right imsmanifest.xml (how to recognize it?).
$realFileSize = 0;
foreach ($zipContentArray as $thisContent) {
$thisContent['filename'];
if (preg_match('~.(php.*|phtml)$~i', $thisContent['filename'])) {
$file = $thisContent['filename'];
$this->set_error_msg("File {$file} contains a PHP script");
} elseif (stristr($thisContent['filename'], 'imsmanifest.xml')) {
//error_log('Found imsmanifest at '.$thisContent['filename'], 0);
if ($thisContent['filename'] == basename($thisContent['filename'])) {
$at_root = true;
} else {
if ($this->debug > 2) {
error_log("New LP - subdir is now " . $this->subdir, 0);
}
}
$package_type = 'scorm';
$manifest_list[] = $thisContent['filename'];
$manifest = $thisContent['filename'];
//just the relative directory inside scorm/
} else {
// Do nothing, if it has not been set as scorm somewhere else, it stays as '' default.
}
$realFileSize += $thisContent['size'];
}
// Now get the shortest path (basically, the imsmanifest that is the closest to the root).
$shortest_path = $manifest_list[0];
$slash_count = substr_count($shortest_path, '/');
foreach ($manifest_list as $manifest_path) {
$tmp_slash_count = substr_count($manifest_path, '/');
if ($tmp_slash_count < $slash_count) {
$shortest_path = $manifest_path;
$slash_count = $tmp_slash_count;
}
}
$this->subdir .= '/' . dirname($shortest_path);
// Do not concatenate because already done above.
$manifest = $shortest_path;
if ($this->debug > 1) {
error_log('New LP - Package type is now ' . $package_type, 0);
}
if ($package_type == '') {
// && defined('CHECK_FOR_SCORM') && CHECK_FOR_SCORM)
if ($this->debug > 1) {
error_log('New LP - Package type is empty', 0);
}
return api_failure::set_failure('not_scorm_content');
}
if (!enough_size($realFileSize, $course_sys_dir, $maxFilledSpace)) {
if ($this->debug > 1) {
error_log('New LP - Not enough space to store package', 0);
}
return api_failure::set_failure('not_enough_space');
}
// It happens on Linux that $new_dir sometimes doesn't start with '/'
if ($new_dir[0] != '/') {
$new_dir = '/' . $new_dir;
}
if ($new_dir[strlen($new_dir) - 1] == '/') {
$new_dir = substr($new_dir, 0, -1);
}
/* Uncompressing phase */
/*
We need to process each individual file in the zip archive to
- add it to the database
- parse & change relative html links
- make sure the filenames are secure (filter funny characters or php extensions)
*/
if (is_dir($course_sys_dir . $new_dir) or @mkdir($course_sys_dir . $new_dir, api_get_permissions_for_new_directories())) {
// PHP method - slower...
if ($this->debug >= 1) {
error_log('New LP - Changing dir to ' . $course_sys_dir . $new_dir, 0);
}
$saved_dir = getcwd();
chdir($course_sys_dir . $new_dir);
$unzippingState = $zipFile->extract();
for ($j = 0; $j < count($unzippingState); $j++) {
$state = $unzippingState[$j];
// TODO: Fix relative links in html files (?)
$extension = strrchr($state['stored_filename'], '.');
if ($this->debug >= 1) {
error_log('New LP - found extension ' . $extension . ' in ' . $state['stored_filename'], 0);
}
}
if (!empty($new_dir)) {
$new_dir = $new_dir . '/';
}
// Rename files, for example with \\ in it.
if ($this->debug >= 1) {
error_log('New LP - try to open: ' . $course_sys_dir . $new_dir, 0);
}
if ($dir = @opendir($course_sys_dir . $new_dir)) {
if ($this->debug >= 1) {
error_log('New LP - Opened dir ' . $course_sys_dir . $new_dir, 0);
}
while ($file = readdir($dir)) {
if ($file != '.' && $file != '..') {
$filetype = 'file';
if (is_dir($course_sys_dir . $new_dir . $file)) {
$filetype = 'folder';
}
// TODO: RENAMING FILES CAN BE VERY DANGEROUS SCORM-WISE, avoid that as much as possible!
//$safe_file = api_replace_dangerous_char($file, 'strict');
$find_str = array('\\', '.php', '.phtml');
$repl_str = array('/', '.txt', '.txt');
$safe_file = str_replace($find_str, $repl_str, $file);
if ($this->debug >= 1) {
error_log('Comparing: ' . $safe_file, 0);
}
if ($this->debug >= 1) {
error_log('and: ' . $file, 0);
}
if ($safe_file != $file) {
$mydir = dirname($course_sys_dir . $new_dir . $safe_file);
if (!is_dir($mydir)) {
$mysubdirs = explode('/', $mydir);
$mybasedir = '/';
foreach ($mysubdirs as $mysubdir) {
if (!empty($mysubdir)) {
$mybasedir = $mybasedir . $mysubdir . '/';
if (!is_dir($mybasedir)) {
@mkdir($mybasedir, api_get_permissions_for_new_directories());
if ($this->debug >= 1) {
error_log('New LP - Dir ' . $mybasedir . ' doesnt exist. Creating.', 0);
}
}
}
}
}
@rename($course_sys_dir . $new_dir . $file, $course_sys_dir . $new_dir . $safe_file);
if ($this->debug >= 1) {
error_log('New LP - Renaming ' . $course_sys_dir . $new_dir . $file . ' to ' . $course_sys_dir . $new_dir . $safe_file, 0);
}
}
}
}
closedir($dir);
chdir($saved_dir);
api_chmod_R($course_sys_dir . $new_dir, api_get_permissions_for_new_directories());
if ($this->debug > 1) {
error_log('New LP - changed back to init dir: ' . $course_sys_dir . $new_dir, 0);
}
}
} else {
return '';
}
return $course_sys_dir . $new_dir . $manifest;
}
/**
* unzip safly a zipfile
*
* @author Hugues Peeters <*****@*****.**>
*
* @param string $fileName file name of zip
* @param string $filePath file path of zip
* @param string $extractPath
* @param integer $maxFilledSpace (byte) count of byte size aivailable
* @param boolean $allowPHP whether True the file can't contain php or phtml files
* @return true
* @throws claro_failure on error
*/
function treat_secure_file_unzip($fileName, $filePath, $extractPath, $maxFilledSpace, $allowPHP = false)
{
$zipFile = new pclZip($fileName);
// Check the zip content (real size and file extension)
$zipContentArray = $zipFile->listContent();
if (!is_array($zipContentArray)) {
return false;
}
foreach ($zipContentArray as $thisContent) {
if (!$allowPHP) {
if (preg_match('~.(php.?|phtml)$~i', $thisContent['filename'])) {
return claro_failure::set_failure(get_lang('The zip file can not contain .PHP files'));
}
}
if (!isset($realFileSize)) {
$realFileSize = 0;
}
$realFileSize += $thisContent['size'];
}
if (!enough_size($realFileSize, $extractPath, $maxFilledSpace)) {
return claro_failure::set_failure(get_lang('The upload has failed. There is not enough space in your directory'));
}
$extractedFileNameList = $zipFile->extract(PCLZIP_OPT_PATH, $extractPath . $filePath, PCLZIP_OPT_SET_CHMOD, CLARO_FILE_PERMISSIONS);
if (is_array($extractedFileNameList)) {
return $extractedFileNameList;
} else {
return false;
}
}
/**
* Manages all the unzipping process of an uploaded file
*
* @author Hugues Peeters <*****@*****.**>
*
* @param array $uploaded_file - follows the $_FILES Structure
* @param string $upload_path - destination of the upload.
* This path is to append to $base_work_dir
* @param string $base_work_dir - base working directory of the module
* @param int $max_filled_space - amount of bytes to not exceed in the base
* working directory
*
* @return boolean true if it succeeds false otherwise
*/
function unzip_uploaded_file($uploaded_file, $upload_path, $base_work_dir, $max_filled_space)
{
$zip_file = new PclZip($uploaded_file['tmp_name']);
// Check the zip content (real size and file extension)
if (file_exists($uploaded_file['tmp_name'])) {
$zip_content_array = $zip_file->listContent();
$ok_scorm = false;
$realFileSize = 0;
foreach ($zip_content_array as &$this_content) {
if (preg_match('~.(php.*|phtml)$~i', $this_content['filename'])) {
return api_failure::set_failure('php_file_in_zip_file');
} elseif (stristr($this_content['filename'], 'imsmanifest.xml')) {
$ok_scorm = true;
} elseif (stristr($this_content['filename'], 'LMS')) {
$ok_plantyn_scorm1 = true;
} elseif (stristr($this_content['filename'], 'REF')) {
$ok_plantyn_scorm2 = true;
} elseif (stristr($this_content['filename'], 'SCO')) {
$ok_plantyn_scorm3 = true;
} elseif (stristr($this_content['filename'], 'AICC')) {
$ok_aicc_scorm = true;
}
$realFileSize += $this_content['size'];
}
if ($ok_plantyn_scorm1 && $ok_plantyn_scorm2 && $ok_plantyn_scorm3 || $ok_aicc_scorm) {
$ok_scorm = true;
}
if (!$ok_scorm && defined('CHECK_FOR_SCORM') && CHECK_FOR_SCORM) {
return api_failure::set_failure('not_scorm_content');
}
if (!enough_size($realFileSize, $base_work_dir, $max_filled_space)) {
return api_failure::set_failure('not_enough_space');
}
// It happens on Linux that $upload_path sometimes doesn't start with '/'
if ($upload_path[0] != '/' && substr($base_work_dir, -1, 1) != '/') {
$upload_path = '/' . $upload_path;
}
if ($upload_path[strlen($upload_path) - 1] == '/') {
$upload_path = substr($upload_path, 0, -1);
}
/* Uncompressing phase */
/*
The first version, using OS unzip, is not used anymore
because it does not return enough information.
We need to process each individual file in the zip archive to
- add it to the database
- parse & change relative html links
*/
if (PHP_OS == 'Linux' && !get_cfg_var('safe_mode') && false) {
// *** UGent, changed by OC ***
// Shell Method - if this is possible, it gains some speed
exec("unzip -d \"" . $base_work_dir . $upload_path . "/\"" . $uploaded_file['name'] . " " . $uploaded_file['tmp_name']);
} else {
// PHP method - slower...
$save_dir = getcwd();
chdir($base_work_dir . $upload_path);
$unzippingState = $zip_file->extract();
for ($j = 0; $j < count($unzippingState); $j++) {
$state = $unzippingState[$j];
// Fix relative links in html files
$extension = strrchr($state['stored_filename'], '.');
}
if ($dir = @opendir($base_work_dir . $upload_path)) {
while ($file = readdir($dir)) {
if ($file != '.' && $file != '..') {
$filetype = 'file';
if (is_dir($base_work_dir . $upload_path . '/' . $file)) {
$filetype = 'folder';
}
$safe_file = api_replace_dangerous_char($file, 'strict');
@rename($base_work_dir . $upload_path . '/' . $file, $base_work_dir . $upload_path . '/' . $safe_file);
set_default_settings($upload_path, $safe_file, $filetype);
}
}
closedir($dir);
} else {
error_log('Could not create directory ' . $base_work_dir . $upload_path . ' to unzip files');
}
chdir($save_dir);
// Back to previous dir position
}
}
return true;
}
function doImport($course_code, $webDir, $scoFileSize, $scoFileName, $displayExtraMessages = false) {
global $langUnamedPath;
global $langFileScormError;
global $langNotice;
global $langMaxFileSize;
global $langNoSpace;
global $langOkFileReceived;
global $langErrorNoZlibExtension;
global $langErrorReadingZipFile;
global $langZipNoPhp;
global $langErrortExtractingManifest;
global $langErrorFileMustBeZip;
global $langErrorOpeningManifest;
global $langOkManifestFound;
global $langErrorReadingManifest;
global $langOkManifestRead;
global $langErrorAssetNotFound;
global $langErrorNoModuleInPackage;
global $langErrorSql;
global $langOkChapterHeadAdded;
global $langUnamedModule;
global $langDefaultModuleComment;
global $langDefaultModuleAddedComment;
global $langOkModuleAdded;
global $langOkDefaultTitleUsed;
global $langDefaultLearningPathComment;
global $langOkDefaultCommentUsed;
global $langSuccessOk;
global $langError;
global $langInstalled;
global $langNotInstalled;
global $langBack;
global $errorFound;
global $elementsPile;
global $itemsPile;
global $manifestData;
global $iterator;
global $course_code;
global $course_id;
global $langErrorValidatingManifest;
global $urlServer;
$pwd = getcwd();
// init msg arays
$okMsgs = array();
$errorMsgs = array();
$maxFilledSpace = 100000000;
$courseDir = "/courses/" . $course_code . "/scormPackages/";
$tempDir = "/courses/" . $course_code . "/temp/";
$baseWorkDir = $webDir . $courseDir; // path_id
$tempWorkDir = $webDir . $tempDir;
if (!is_dir($baseWorkDir)) {
claro_mkdir($baseWorkDir, CLARO_FILE_PERMISSIONS);
}
// arrays used to store inserted ids
$insertedModule_id = array();
$insertedAsset_id = array();
$lpName = $langUnamedPath;
// we need a new path_id for this learning path so we prepare a line in DB
// this line will be removed if an error occurs
$rankMax = 1 + intval(Database::get()->querySingle("SELECT MAX(`rank`) AS max
FROM `lp_learnPath` WHERE `course_id` = ?d", $course_id)->max);
$tempPathId = Database::get()->query("INSERT INTO `lp_learnPath`
(`course_id`, `name`,`visible`,`rank`,`comment`)
VALUES (?d, ?s, 0, ?d,'')", $course_id, $lpName, $rankMax)->lastInsertID;
$baseWorkDir .= "path_" . $tempPathId;
if (!is_dir($baseWorkDir)) {
claro_mkdir($baseWorkDir, CLARO_FILE_PERMISSIONS);
}
// unzip package
require_once("include/pclzip/pclzip.lib.php");
/*
* Check the file size doesn't exceed
* the maximum file size authorized in the directory
*/
if (!enough_size($scoFileSize, $baseWorkDir, $maxFilledSpace)) {
$errorFound = true;
array_push($errorMsgs, $langNoSpace);
}
/*
* Unzipping stage
*/ elseif (preg_match("/.zip$/i", $scoFileName)) {
array_push($okMsgs, $langOkFileReceived . basename($scoFileName));
if (!function_exists('gzopen')) {
$errorFound = true;
array_push($errorMsgs, $langErrorNoZlibExtension);
} else {
$zipFile = new pclZip($tempWorkDir . $scoFileName);
$is_allowedToUnzip = true; // default initialisation
// Check the zip content (real size and file extension)
$zipContentArray = $zipFile->listContent();
if ($zipContentArray == 0) {
$errorFound = true;
array_push($errorMsgs, $langErrorReadingZipFile);
}
$pathToManifest = ""; // empty by default because we can expect that the manifest.xml is in the root of zip file
$pathToManifestFound = false;
$realFileSize = 0;
foreach ($zipContentArray as $thisContent) {
if (preg_match('/.(php[[:digit:]]?|phtml)$/i', $thisContent['filename'])) {
$errorFound = true;
array_push($errorMsgs, $langZipNoPhp);
$is_allowedToUnzip = false;
break;
}
if (strtolower(substr($thisContent['filename'], -15)) == "imsmanifest.xml") {
// this check exists to find the less deep imsmanifest.xml in the zip if there are several imsmanifest.xml
// if this is the first imsmanifest.xml we found OR path to the new manifest found is shorter (less deep)
if (!$pathToManifestFound || ( count(explode('/', $thisContent['filename'])) < count(explode('/', $pathToManifest . "imsmanifest.xml")) )
) {
$pathToManifest = substr($thisContent['filename'], 0, -15);
$pathToManifestFound = true;
}
}
$realFileSize += $thisContent['size'];
}
if (!isset($alreadyFilledSpace)) {
$alreadyFilledSpace = 0;
}
if (($realFileSize + $alreadyFilledSpace) > $maxFilledSpace) { // check the real size.
$errorFound = true;
array_push($errorMsgs, $langNoSpace);
$is_allowedToUnzip = false;
}
if ($is_allowedToUnzip && !$errorFound) {
// PHP extraction of zip file using zlib
chdir($baseWorkDir);
$unzippingState = $zipFile->extract(PCLZIP_OPT_BY_NAME, $pathToManifest . "imsmanifest.xml", PCLZIP_OPT_PATH, '', PCLZIP_OPT_REMOVE_PATH, $pathToManifest);
if ($unzippingState == 0) {
$errorFound = true;
array_push($errorMsgs, $langErrortExtractingManifest);
}
} //end of if ($is_allowedToUnzip)
} // end of if (!function_exists...
} else {
$errorFound = true;
array_push($errorMsgs, $langErrorFileMustBeZip . ": " . basename($scoFileName));
}
// find xmlmanifest (must be in root else ==> cancel operation, delete files)
// parse xml manifest to find :
// package name - learning path name
// SCO list
// start asset path
if (!$errorFound) {
$elementsPile = array(); // array used to remember where we are in the arborescence of the XML file
$itemsPile = array(); // array used to remember parents items
// declaration of global arrays used for extracting needed info from manifest for the new modules/SCO
$manifestData = array(); // for global data of the learning path
$manifestData['items'] = array(); // item tags content (attributes + some child elements data (title for an example)
$manifestData['scos'] = array(); // for path of start asset id of each new module to create
$iterator = 0; // will be used to increment position of paths in manifestData['scosPaths"]
// and to have the names at the same pos if found
//$xml_parser = xml_parser_create();
$xml_parser = xml_parser_create('utf-8');
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "elementData");
// this file has to exist in a SCORM conformant package
// this file must be in the root the sent zip
$file = "imsmanifest.xml";
if (!($fp = @fopen($file, "r"))) {
$errorFound = true;
array_push($errorMsgs, $langErrorOpeningManifest);
} else {
if (!isset($manifestPath)) {
$manifestPath = "";
}
array_push($okMsgs, $langOkManifestFound . $manifestPath . "imsmanifest.xml");
while ($data = str_replace("\n", "", fread($fp, 4096))) {
// fix for fread breaking thing
// msg from "ml at csite dot com" 02-Jul-2003 02:29 on http://www.php.net/xml
// preg expression has been modified to match tag with inner attributes
if (!isset($cache)) {
$cache = "";
}
$data = $cache . $data;
if (!feof($fp)) {
// search fo opening, closing, empty tags (with or without attributes)
if (preg_match_all("/<[^\>]*.>/", $data, $regs)) {
$lastTagname = $regs[0][count($regs[0]) - 1];
$split = false;
for ($i = strlen($data) - strlen($lastTagname); $i >= strlen($lastTagname); $i--) {
if ($lastTagname == substr($data, $i, strlen($lastTagname))) {
$cache = substr($data, $i, strlen($data));
$data = substr($data, 0, $i);
$split = true;
break;
}
}
}
if (!$split) {
$cache = $data;
}
}
// end of fix
if (!xml_parse($xml_parser, $data, feof($fp))) {
// if reading of the xml file in not successfull :
// set errorFound, set error msg, break while statement
$errorFound = true;
array_push($errorMsgs, $langErrorReadingManifest);
// Since manifest.xml cannot be parsed, test versus IMS CP 1.4.4 XSD (compatible with all SCORM packages as well)
require_once 'include/validateXML.php';
libxml_use_internal_errors(true);
$xml = new DOMDocument();
$xml->load($manifestPath."imsmanifest.xml");
if (!$xml->schemaValidate($urlServer . 'modules/learnPath/export/imscp_v1p2.xsd')) {
$messages = libxml_display_errors();
array_push($errorMsgs, $langErrorValidatingManifest . $messages);
}
break;
}
}
// close file
fclose($fp);
}
// liberate parser ressources
xml_parser_free($xml_parser);
} //if (!$errorFound)
// check if all starts assets files exist in the zip file
if (!$errorFound) {
array_push($okMsgs, $langOkManifestRead);
if (sizeof($manifestData['items']) > 0) {
// if there is items in manifest we look for sco type resources referenced in idientifierref
foreach ($manifestData['items'] as $item) {
if (!isset($item['identifierref']) || $item['identifierref'] == '') {
break; // skip if no ressource reference in item (item is probably a chapter head)
}
// find the file in the zip file
$scoPathFound = false;
for ($i = 0; $i < sizeof($zipContentArray); $i++) {
if (isset($manifestData['scos'][$item['identifierref']]['xml:base'])) {
$extraPath = $manifestData['scos'][$item['identifierref']]['xml:base'];
} else if (isset($manifestData['assets'][$item['identifierref']]['xml:base'])) {
$extraPath = $manifestData['assets'][$item['identifierref']]['xml:base'];
} else {
$extraPath = "";
}
if (isset($zipContentArray[$i]["filename"]) &&
( ( isset($manifestData['scos'][$item['identifierref']]['href']) && $zipContentArray[$i]["filename"] == $pathToManifest . $extraPath . $manifestData['scos'][$item['identifierref']]['href']) || (isset($manifestData['assets'][$item['identifierref']]['href']) && $zipContentArray[$i]["filename"] == $pathToManifest . $extraPath . $manifestData['assets'][$item['identifierref']]['href'])
)
) {
$scoPathFound = true;
break;
}
}
if (!$scoPathFound) {
$errorFound = true;
array_push($errorMsgs, $langErrorAssetNotFound . $manifestData['scos'][$item['identifierref']]['href']);
break;
}
}
} //if (sizeof ...)
elseif (sizeof($manifestData['scos']) > 0) {
// if there ie no items in the manifest file
// check for scos in resources
foreach ($manifestData['scos'] as $sco) {
// find the file in the zip file
// create a fake item so that the rest of the procedure (add infos of in db) can remains the same
$manifestData['items'][$sco['href']]['identifierref'] = $sco['href'];
$manifestData['items'][$sco['href']]['parameters'] = '';
$manifestData['items'][$sco['href']]['isvisible'] = "true";
$manifestData['items'][$sco['href']]['title'] = $sco['title'];
$manifestData['items'][$sco['href']]['description'] = $sco['description'];
$manifestData['items'][$attributes['IDENTIFIER']]['parent'] = 0;
$scoPathFound = false;
for ($i = 0; $i < sizeof($zipContentArray); $i++) {
if ($zipContentArray[$i]["filename"] == $sco['href']) {
$scoPathFound = true;
break;
}
}
if (!$scoPathFound) {
$errorFound = true;
array_push($errorMsgs, $langErrorAssetNotFound . $sco['href']);
break;
}
}
} // if sizeof (...ΰ
else {
$errorFound = true;
array_push($errorMsgs, $langErrorNoModuleInPackage);
}
}// if errorFound
// unzip all files
// &&
// insert corresponding entries in database
if (!$errorFound) {
// PHP extraction of zip file using zlib
chdir($baseWorkDir);
// PCLZIP_OPT_PATH is the path where files will be extracted ( '' )
// PLZIP_OPT_REMOVE_PATH suppress a part of the path of the file ( $pathToManifest )
// the result is that the manifest is in th eroot of the path_# directory and all files will have a path related to the root
$unzippingState = $zipFile->extract(PCLZIP_OPT_PATH, '', PCLZIP_OPT_REMOVE_PATH, $pathToManifest);
// insert informations in DB :
// - 1 learning path ( already added because we needed its id to create the package directory )
// - n modules
// - n asset as start asset of modules
if (sizeof($manifestData['items']) == 0) {
$errorFound = true;
array_push($errorMsgs, $langErrorNoModuleInPackage);
} else {
$i = 0;
$insertedLPMid = array(); // array of learnPath_module_id && order of related group
$inRootRank = 1; // default rank for root module (parent == 0)
foreach ($manifestData['items'] as $item) {
if (isset($item['parent']) && isset($insertedLPMid[$item['parent']])) {
$parent = $insertedLPMid[$item['parent']]['LPMid'];
$rank = $insertedLPMid[$item['parent']]['rank'] ++;
} else {
$parent = 0;
$rank = $inRootRank++;
}
//-------------------------------------------------------------------------------
// add chapter head
//-------------------------------------------------------------------------------
if ((!isset($item['identifierref']) || $item['identifierref'] == '') && isset($item['title']) && $item['title'] != '') {
// add title as a module
$chapterTitle = $item['title'];
// array of all inserted module ids
$insertedModule_id[$i] = Database::get()->query("INSERT INTO `lp_module`
(`course_id`, `name`, `comment`, `contentType`, `launch_data`)
VALUES (?d, ?s, '', ?s,'')", $course_id, $chapterTitle, CTLABEL_)->lastInsertID;
if (!$insertedModule_id[$i]) {
$errorFound = true;
array_push($errorMsgs, $langErrorSql);
break;
}
// visibility
if (isset($item['isvisible']) && $item['isvisible'] != '') {
$visibility = ($item['isvisible'] == "true") ? 1 : 0;
} else {
$visibility = 1; // IMS consider that the default value of 'isvisible' is true
}
// add title module in the learning path
// finally : insert in learning path
// get the inserted id of the learnPath_module rel to allow 'parent' link in next inserts
$insertedLPMid[$item['itemIdentifier']]['LPMid'] = Database::get()->query("INSERT INTO `lp_rel_learnPath_module`
(`learnPath_id`, `module_id`,`rank`, `visible`, `parent`)
VALUES (?d, ?d, ?d, ?d, ?d)", $tempPathId, $insertedModule_id[$i], $rank, $visibility, $parent)->lastInsertID;
$insertedLPMid[$item['itemIdentifier']]['rank'] = 1;
if (!$insertedLPMid[$item['itemIdentifier']]['LPMid']) {
$errorFound = true;
array_push($errorMsgs, $langErrorSql);
break;
}
if (!$errorFound) {
array_push($okMsgs, $langOkChapterHeadAdded . "<i>" . $chapterTitle . "</i>");
}
$i++;
continue;
}
// use found title of module or use default title
if (!isset($item['title']) || $item['title'] == '') {
$moduleName = $langUnamedModule;
} else {
$moduleName = $item['title'];
}
// set description as comment or default comment
// look fo description in item description or in sco (resource) description
// don't remember why I checked for parameters string ... so comment it
if ((!isset($item['description']) || $item['description'] == '' ) &&
(!isset($manifestData['scos'][$item['identifierref']]['description']) /* || $manifestData['scos'][$item['identifierref']]['parameters'] == '' */ )
) {
$description = $langDefaultModuleComment;
} else {
if (isset($item['description']) && $item['description'] != '') {
$description = $item['description'];
} else {
$description = $manifestData['scos'][$item['identifierref']]['description'];
}
}
// insert modules and their start asset
// create new module
if (!isset($item['datafromlms'])) {
$item['datafromlms'] = "";
}
// elegxoume an to contentType prepei na einai scorm h asset
if (isset($manifestData['scos'][$item['identifierref']]['contentTypeFlag']) && $manifestData['scos'][$item['identifierref']]['contentTypeFlag'] == CTSCORMASSET_) {
$contentType = CTSCORMASSET_;
} else {
$contentType = CTSCORM_;
}
// array of all inserted module ids
$insertedModule_id[$i] = Database::get()->query("INSERT INTO `lp_module`
(`course_id`, `name`, `comment`, `contentType`, `launch_data`)
VALUES (?d, ?s, ?s, ?s, ?s)", $course_id, $moduleName, $description, $contentType, $item['datafromlms'])->lastInsertID;
if (!$insertedModule_id[$i]) {
$errorFound = true;
array_push($errorMsgs, $langErrorSql);
break;
}
// build asset path
// a $manifestData['scos'][$item['identifierref']] __SHOULD__ not exist if a $manifestData['assets'][$item['identifierref']] exists
// so according to IMS we can say that one is empty if the other is filled, so we concat them without more verification than if the var exists.
// suppress notices
if (!isset($manifestData['xml:base']['manifest'])) {
$manifestData['xml:base']['manifest'] = "";
}
if (!isset($manifestData['xml:base']['ressources'])) {
$manifestData['xml:base']['ressources'] = "";
}
if (!isset($manifestData['scos'][$item['identifierref']]['href'])) {
$manifestData['scos'][$item['identifierref']]['href'] = "";
}
if (!isset($manifestData['assets'][$item['identifierref']]['href'])) {
$manifestData['assets'][$item['identifierref']]['href'] = "";
}
if (!isset($manifestData['scos'][$item['identifierref']]['parameters'])) {
$manifestData['scos'][$item['identifierref']]['parameters'] = "";
}
if (!isset($manifestData['assets'][$item['identifierref']]['parameters'])) {
$manifestData['assets'][$item['identifierref']]['parameters'] = "";
}
if (!isset($manifestData['items'][$item['itemIdentifier']]['parameters'])) {
$manifestData['items'][$item['itemIdentifier']]['parameters'] = "";
}
if (isset($manifestData['scos'][$item['identifierref']]['xml:base'])) {
$extraPath = $manifestData['scos'][$item['identifierref']]['xml:base'];
} else if (isset($manifestData['assets'][$item['identifierref']]['xml:base'])) {
$extraPath = $manifestData['assets'][$item['identifierref']]['xml:base'];
} else {
$extraPath = "";
}
$assetPath = "/"
. $manifestData['xml:base']['manifest']
. $manifestData['xml:base']['ressources']
. $extraPath
. $manifestData['scos'][$item['identifierref']]['href']
. $manifestData['assets'][$item['identifierref']]['href']
. $manifestData['scos'][$item['identifierref']]['parameters']
. $manifestData['assets'][$item['identifierref']]['parameters']
. $manifestData['items'][$item['itemIdentifier']]['parameters'];
// create new asset
// array of all inserted asset ids
$insertedAsset_id[$i] = Database::get()->query("INSERT INTO `lp_asset`
(`path` , `module_id` , `comment`)
VALUES (?s, ?d, '')", $assetPath, $insertedModule_id[$i])->lastInsertID;
if (!$insertedAsset_id[$i]) {
$errorFound = true;
array_push($errorMsgs, $langErrorSql);
break;
}
// update of module with correct start asset id
Database::get()->query("UPDATE `lp_module`
SET `startAsset_id` = ?d
WHERE `module_id` = ?d
AND `course_id` = ?d", $insertedAsset_id[$i], $insertedModule_id[$i], $course_id);
// visibility
if (isset($item['isvisible']) && $item['isvisible'] != '') {
( $item['isvisible'] == "true" ) ? $visibility = 1 : $visibility = 0;
} else {
$visibility = 1; // IMS consider that the default value of 'isvisible' is true
}
// finally : insert in learning path
// get the inserted id of the learnPath_module rel to allow 'parent' link in next inserts
$insertedLPMid[$item['itemIdentifier']]['LPMid'] = Database::get()->query("INSERT INTO `lp_rel_learnPath_module`
(`learnPath_id`, `module_id`, `specificComment`, `rank`, `visible`, `lock`, `parent`)
VALUES (?d, ?d, ?s, ?d, ?d, 'OPEN', ?d)", $tempPathId, $insertedModule_id[$i], $langDefaultModuleAddedComment, $rank, $visibility, $parent)->lastInsertID;
$insertedLPMid[$item['itemIdentifier']]['rank'] = 1;
if (!$insertedLPMid[$item['itemIdentifier']]['LPMid']) {
$errorFound = true;
array_push($errorMsgs, $langErrorSql);
break;
}
if (!$errorFound) {
array_push($okMsgs, $langOkModuleAdded . "<i>" . $moduleName . "</i>");
}
$i++;
}//foreach
} // if sizeof($manifestData['items'] == 0 )
} // if errorFound
// last step
// - delete all added files/directories/records in db
// or
// - update the learning path record
if ($errorFound) {
// delete all database entries of this "module"
// delete modules and assets (build query)
// delete assets
$sqlDelAssets = "DELETE FROM `lp_asset` WHERE 1 = 0";
foreach ($insertedAsset_id as $insertedAsset) {
$sqlDelAssets .= " OR `asset_id` = " . intval($insertedAsset);
}
Database::get()->query($sqlDelAssets);
// delete modules
$sqlDelModules = "DELETE FROM `lp_module` WHERE 1 = 0";
foreach ($insertedModule_id as $insertedModule) {
$sqlDelModules .= " OR ( `module_id` = " . intval($insertedModule) . " AND `course_id` = " . intval($course_id) . " )";
}
Database::get()->query($sqlDelModules);
// delete learningPath_module
Database::get()->query("DELETE FROM `lp_rel_learnPath_module` WHERE `learnPath_id` = ?d", $tempPathId);
// delete learning path
Database::get()->query("DELETE FROM `lp_learnPath`
WHERE `learnPath_id` = ?d
AND `course_id` = ?d", $tempPathId, $course_id);
// delete the directory (and files) of this learning path and all its content
claro_delete_file($baseWorkDir);
} else {
// finalize insertion : update the empty learning path insert that was made to find its id
$rankMax = 1 + intval(Database::get()->querySingle("SELECT MAX(`rank`) AS max
FROM `lp_learnPath`
WHERE `course_id` = ?d", $course_id)->max);
if (isset($manifestData['packageTitle'])) {
$lpName = $manifestData['packageTitle'];
} else {
array_push($okMsgs, $langOkDefaultTitleUsed);
}
if (isset($manifestData['packageDesc'])) {
$lpComment = $manifestData['packageDesc'];
} else {
$lpComment = $langDefaultLearningPathComment;
array_push($okMsgs, $langOkDefaultCommentUsed);
}
Database::get()->query("UPDATE `lp_learnPath`
SET `rank` = ?d,
`name` = ?s,
`comment` = ?s,
`visible` = 1
WHERE `learnPath_id` = ?d
AND `course_id` = ?d", $rankMax, $lpName, $lpComment, $tempPathId, $course_id);
}
/* --------------------------------------
status messages
-------------------------------------- */
$importMessages = "\n<p>\n";
//$importMessages .= "<!-- Messages -->";
foreach ($okMsgs as $msg) {
$importMessages .= "\n<b>[</b><span class=\"correct\">$langSuccessOk</span><b>]</b> " . $msg . "<br />";
}
foreach ($errorMsgs as $msg) {
$importMessages .= "\n<b>[</b><span class=\"error\">$langError</span><b>]</b> " . $msg . "<br />";
}
$importMessages .= "\n\n";
//$importMessages .= "<!-- End messages -->";
// installation completed or not message
if (!$errorFound) {
$importMessages .= "\n<br /><center><b>" . $langInstalled . "</b></center>";
if ($displayExtraMessages == true) {
$importMessages .= "\n<br /><br ><center><a href=\"learningPathAdmin.php?course=$course_code&path_id=" . $tempPathId . "\">" . $lpName . "</a></center>";
}
$importMessages .= "\n<br /><br >";
}
else {
$importMessages .= "\n<br /><center><b>" . $langNotInstalled . "</b></center>";
}
//$importMessages .= "\n<br /><a href=\"index.php?course=$course_code\">$langBack</a></p>";
$importMessages .= "\n<br /></p>";
chdir($pwd);
return array($importMessages, $tempPathId);
}