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

216 lines
8.4 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* Defines the OpenofficeDocument class, which is meant as a mother class
* to help in the conversion of Office documents to learning paths
* @package chamilo.learnpath
* @author Eric Marguin <eric.marguin@dokeos.com>
* @license GNU/GPL
*/
/**
* Defines the "OpenofficeDocument" child of class "learnpath"
*/
abstract class OpenofficeDocument extends learnpath
{
public $first_item = 0;
public $original_charset = 'utf-8';
public $original_locale = 'en_US.UTF-8';
/**
* Class constructor. Based on the parent constructor.
* @param string Course code
* @param integer Learnpath ID in DB
* @param integer User ID
*/
public function __construct($course_code = null, $resource_id = null, $user_id = null)
{
if ($this->debug > 0) {
error_log('In OpenofficeDocument::OpenofficeDocument()', 0);
}
if (!empty($course_code) && !empty($resource_id) && !empty($user_id)) {
parent::__construct($course_code, $resource_id, $user_id);
} else {
// Do nothing but still build the presentation object.
}
}
public function convert_document($file, $action_after_conversion = 'make_lp')
{
global $_course, $_user, $_configuration;
$this->file_name = pathinfo($file['name'], PATHINFO_FILENAME);
// Create the directory
$result = $this->generate_lp_folder($_course, $this->file_name);
// Create the directory
$this->base_work_dir = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document';
///learning_path/ppt_dirname directory
$this->created_dir = substr($result['dir'], 0, strlen($result['dir']) - 1);
$this->file_path = $this->created_dir.'/'.replace_dangerous_char($file['name'], 'strict');
//var_dump($this->file_name, $this->file_path, $this->base_work_dir, $this->created_dir);
/*
* Original code
global $_course, $_user, $_configuration;
$this->file_name = (strrpos($file['name'], '.') > 0 ? substr($file['name'], 0, strrpos($file['name'], '.')) : $file['name']);
$this->file_name = replace_dangerous_char($this->file_name, 'strict');
$this->file_name = strtolower($this->file_name);
$visio_dir = ($action_after_conversion == 'add_docs_to_visio') ? VIDEOCONF_UPLOAD_PATH : '';
$this->file_path = $visio_dir.'/'.$this->file_name.'.'.pathinfo($file['name'], PATHINFO_EXTENSION);
$dir_name = $visio_dir.'/'.$this->file_name;
// Create the directory.
$this->base_work_dir = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document';
$this->created_dir = FileManager::create_unexisting_directory($_course, $_user['user_id'], api_get_session_id(), 0, 0, $this->base_work_dir, $dir_name);
var_dump($this->file_name, $this->file_path, $this->base_work_dir, $this->created_dir);
*/
$ppt2lp_host = api_get_setting('service_ppt2lp', 'host');
if ($ppt2lp_host == 'localhost') {
move_uploaded_file($file['tmp_name'], $this->base_work_dir.'/'.$this->file_path);
//var_dump( $this->base_work_dir.$this->created_dir.$this->file_path);
$perm = api_get_setting('permissions_for_new_files');
if (IS_WINDOWS_OS) { // IS_WINDOWS_OS has been defined in main_api.lib.php
$converter_path = str_replace('/', '\\', api_get_path(SYS_PATH).'main/inc/lib/ppt2png');
$class_path = $converter_path.';'.$converter_path.'/jodconverter-2.2.2.jar;'.$converter_path.'/jodconverter-cli-2.2.2.jar';
//$cmd = 'java -cp "'.$class_path.'" DokeosConverter';
$cmd = 'java -Dfile.encoding=UTF-8 -cp "'.$class_path.'" DokeosConverter';
} else {
$converter_path = api_get_path(SYS_PATH).'main/inc/lib/ppt2png';
//$class_path = '-cp .:jodconverter-2.2.1.jar:jodconverter-cli-2.2.1.jar';
$class_path = ' -Dfile.encoding=UTF-8 -cp .:jodconverter-2.2.2.jar:jodconverter-cli-2.2.2.jar';
$cmd = 'cd '.$converter_path.' && java '.$class_path.' DokeosConverter';
}
$cmd .= ' -p '.api_get_setting('service_ppt2lp', 'port');
// Call to the function implemented by child.
$cmd .= $this->add_command_parameters();
// To allow openoffice to manipulate docs.
@chmod($this->base_work_dir, 0777);
@chmod($this->base_work_dir.$this->created_dir, 0777);
@chmod($this->base_work_dir.$this->file_path, 0777);
$locale = $this->original_locale; // TODO: Improve it because we're not sure this locale is present everywhere.
putenv('LC_ALL='.$locale);
$files = array();
$return = 0;
$shell = exec($cmd, $files, $return);
if ($return != 0) { // If the java application returns an error code.
switch ($return) {
// Can't connect to openoffice.
case 1:
$this->error = get_lang('CannotConnectToOpenOffice');
break;
// Conversion failed in openoffice.
case 2:
$this->error = get_lang('OogieConversionFailed');
break;
// Conversion can't be launch because command failed.
case 255:
$this->error = get_lang('OogieUnknownError');
break;
}
DocumentManager::delete_document($_course, $this->created_dir, $this->base_work_dir);
return false;
}
} else {
// get result from webservices
$result = $this->_get_remote_ppt2lp_files($file);
$result = unserialize(base64_decode($result));
// Save remote images to server
chmod($this->base_work_dir.$this->created_dir, api_get_permissions_for_new_directories());
if (!empty($result['images'])) {
foreach ($result['images'] as $image => $img_data) {
$image_path = $this->base_work_dir.$this->created_dir;
@file_put_contents($image_path.'/'.$image, base64_decode($img_data));
@chmod($image_path.'/'.$image, 0777);
}
}
// files info
$files = $result['files'];
}
if (!empty($files)) {
// Create lp
$this->lp_id = learnpath::add_lp($_course['id'], $this->file_name, '', 'guess', 'manual');
// Call to the function implemented by child following action_after_conversion parameter.
switch ($action_after_conversion) {
case 'make_lp':
$this->make_lp($files);
break;
case 'add_docs_to_visio':
$this->add_docs_to_visio($files);
break;
}
chmod($this->base_work_dir, api_get_permissions_for_new_directories());
}
return $this->first_item;
}
/**
* Get images files from remote host (with webservices)
* @param array current ppt file
* @return array images files
*/
private function _get_remote_ppt2lp_files($file)
{
require_once api_get_path(LIBRARY_PATH).'nusoap/nusoap.php';
// host
$ppt2lp_host = api_get_setting('service_ppt2lp', 'host');
// secret key
$secret_key = sha1(api_get_setting('service_ppt2lp', 'ftp_password'));
// client
$client = new nusoap_client($ppt2lp_host, true);
$result = '';
$err = $client->getError();
if (!$err) {
$file_data = base64_encode(file_get_contents($file['tmp_name']));
$file_name = $file['name'];
$service_ppt2lp_size = api_get_setting('service_ppt2lp', 'size');
$params = array(
'secret_key' => $secret_key,
'file_data' => $file_data,
'file_name' => $file_name,
'service_ppt2lp_size' => $service_ppt2lp_size,
);
$result = $client->call('ws_convert_ppt', array('convert_ppt' => $params));
} else {
return false;
}
return $result;
}
abstract function make_lp();
abstract function add_docs_to_visio();
abstract function add_command_parameters();
}