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672 lines
22 KiB
672 lines
22 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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*
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* Files are saved in the path:
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*
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* courses/XXX/exercises/(session_id)/(exercise_id)/(question_id)/(user_id)/
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*
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* The file name is composed with
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*
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* (course_id)/(session_id)/(user_id)/(exercise_id)/(question_id)/(exe_id).wav|mp3|ogg
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*
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*
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*/
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class Nanogong
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{
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public $filename;
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public $store_filename;
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public $store_path;
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public $params;
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public $can_edit = false;
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/* Files allowed to upload */
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public $available_extensions = array('mp3', 'wav', 'ogg');
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/**
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* @param array $params
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*/
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public function __construct($params = array())
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{
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$this->set_parameters($params);
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}
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/**
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* @return bool
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*/
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public function create_user_folder()
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{
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//COURSE123/exercises/session_id/exercise_id/question_id/user_id
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if (empty($this->store_path)) {
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return false;
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}
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//@todo use an array to create folders
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$folders_to_create = array();
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// Trying to create the courses/COURSE123/exercises/ dir just in case.
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$directoryPermissions = api_get_permissions_for_new_directories();
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if (!is_dir($this->store_path)) {
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mkdir($this->store_path, $directoryPermissions);
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}
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if (!is_dir($this->store_path.$this->session_id)) {
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mkdir($this->store_path.$this->session_id, $directoryPermissions);
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}
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if (!is_dir($this->store_path.$this->session_id.'/'.$this->exercise_id)) {
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mkdir($this->store_path.$this->session_id.'/'.$this->exercise_id, $directoryPermissions);
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}
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if (!is_dir($this->store_path.$this->session_id.'/'.$this->exercise_id.'/'.$this->question_id)
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) {
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mkdir($this->store_path.$this->session_id.'/'.$this->exercise_id.'/'.$this->question_id, $directoryPermissions);
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}
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if (!empty($this->user_id) &&
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!is_dir($this->store_path.$this->session_id.'/'.$this->exercise_id.'/'.$this->question_id.'/'.$this->user_id)
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) {
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mkdir($this->store_path.$this->session_id.'/'.$this->exercise_id.'/'.$this->question_id.'/'.$this->user_id, $directoryPermissions);
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}
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}
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/**
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* Setting parameters: course id, session id, etc
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* @param array
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*/
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public function set_parameters($params = array())
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{
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//Setting course id
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if (isset($params['course_id'])) {
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$this->course_id = intval($params['course_id']);
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} else {
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$this->course_id = $params['course_id'] = api_get_course_int_id();
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}
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//Setting course info
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if (isset($this->course_id)) {
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$this->course_info = api_get_course_info_by_id($this->course_id);
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}
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//Setting session id
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if (isset($params['session_id'])) {
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$this->session_id = intval($params['session_id']);
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} else {
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$this->session_id = $params['session_id'] = api_get_session_id();
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}
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//Setting user ids
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if (isset($params['user_id'])) {
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$this->user_id = intval($params['user_id']);
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} else {
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$this->user_id = $params['user_id'] = api_get_user_id();
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}
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//Setting user ids
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if (isset($params['exercise_id'])) {
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$this->exercise_id = intval($params['exercise_id']);
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} else {
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$this->exercise_id = 0;
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}
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//Setting user ids
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if (isset($params['question_id'])) {
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$this->question_id = intval($params['question_id']);
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} else {
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$this->question_id = 0;
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}
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$this->can_edit = false;
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if (api_is_allowed_to_edit()) {
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$this->can_edit = true;
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} else {
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if ($this->user_id == api_get_user_id()) {
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$this->can_edit = true;
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}
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}
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//Settings the params array
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$this->params = $params;
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$this->store_path = api_get_path(SYS_COURSE_PATH).$this->course_info['path'].'/exercises/';
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$this->create_user_folder();
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$this->store_path = $this->store_path.implode('/', array($this->session_id, $this->exercise_id, $this->question_id, $this->user_id)).'/';
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$this->filename = $this->generate_filename();
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$this->store_filename = $this->store_path.$this->filename;
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}
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/**
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* Generates the filename with the next format:
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* (course_id)/(session_id)/(user_id)/(exercise_id)/(question_id)/(exe_id)
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*
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* @return string
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*/
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public function generate_filename()
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{
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if (!empty($this->params)) {
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//filename
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//course_id/session_id/user_id/exercise_id/question_id/exe_id
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$filename_array = array(
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$this->params['course_id'],
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$this->params['session_id'],
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$this->params['user_id'],
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$this->params['exercise_id'],
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$this->params['question_id'],
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$this->params['exe_id']
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);
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return implode('-', $filename_array);
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} else {
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return api_get_unique_id();
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}
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}
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/**
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* Delete audio file
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* @return int
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*/
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public function delete_files()
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{
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$delete_found = 0;
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if ($this->can_edit) {
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$file = $this->load_filename_if_exists();
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$path_info = pathinfo($file);
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foreach ($this->available_extensions as $extension) {
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$file_to_delete = $path_info['dirname'].'/'.$path_info['filename'].'.'.$extension;
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if (is_file($file_to_delete)) {
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unlink($file_to_delete);
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$delete_found = 1;
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}
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}
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}
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return $delete_found;
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}
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/**
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*
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* Tricky stuff to deal with the feedback = 0 in exercises (all question per page)
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* @param int $exe_id
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*/
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public function replace_with_real_exe($exe_id)
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{
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$filename = null;
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//@ugly fix
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foreach($this->available_extensions as $extension) {
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$items = explode('-', $this->filename);
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$items[5] = 'temp_exe';
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$filename = implode('-', $items);
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if (is_file($this->store_path.$filename.'.'.$extension)) {
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$old_name = $this->store_path.$filename.'.'.$extension;
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$items = explode('-', $this->filename);
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$items[5] = $exe_id;
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$filename = $filename = implode('-', $items);
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$new_name = $this->store_path.$filename.'.'.$extension;
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rename($old_name, $new_name);
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break;
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}
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}
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}
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/**
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* @param bool $load_from_database
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* @return null|string
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*/
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public function load_filename_if_exists($load_from_database = false)
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{
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$filename = null;
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//@ugly fix
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foreach($this->available_extensions as $extension) {
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if (is_file($this->store_path.$this->filename.'.'.$extension)) {
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$filename = $this->filename.'.'.$extension;
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break;
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}
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}
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// temp_exe
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if ($load_from_database) {
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//Load the real filename just if exists
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if (isset($this->params['exe_id']) && isset($this->params['user_id']) &&
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isset($this->params['question_id']) && isset($this->params['session_id']) && isset($this->params['course_id'])
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) {
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$attempt_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
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$sql = "SELECT filename FROM $attempt_table
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WHERE
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exe_id = ".$this->params['exe_id']." AND
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user_id = ".$this->params['user_id']." AND
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question_id = ".$this->params['question_id']." AND
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session_id = ".$this->params['session_id']." AND
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course_code = '".$this->course_info['code']."'
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LIMIT 1";
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$result = Database::query($sql);
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$result = Database::fetch_row($result,'ASSOC');
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if (isset($result) && isset($result[0]) && !empty($result[0])) {
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$filename = $result[0];
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}
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}
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}
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if (is_file($this->store_path.$filename)) {
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return $this->store_path.$filename;
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}
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return null;
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}
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/**
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*
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* Get the URL of the file
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* path courses/XXX/exercises/(session_id)/(exercise_id)/(question_id)/(user_id)/
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* @param int $force_download
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*
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* @return string
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*/
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public function get_public_url($force_download = 0)
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{
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//$params = $this->get_params(true);
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//$url = api_get_path(WEB_AJAX_PATH).'nanogong.ajax.php?a=get_file&download='.$force_download.'&'.$params;
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$params = $this->get_params();
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$filename = basename($this->load_filename_if_exists());
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$url = api_get_path(WEB_COURSE_PATH).$this->course_info['path'].'/exercises/'.$params['session_id'].'/'.$params['exercise_id'].'/'.$params['question_id'].'/'.$params['user_id'].'/'.$filename;
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return $url;
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}
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/**
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* Uploads the nanogong wav file
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* @param bool
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*/
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public function upload_file($is_nano = false)
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{
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if (!empty($_FILES)) {
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$upload_ok = process_uploaded_file($_FILES['file'], false);
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if (!is_uploaded_file($_FILES['file']['tmp_name'])) {
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return 0;
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}
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if ($upload_ok) {
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// Check if there is enough space to save the file
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if (!DocumentManager::enough_space($_FILES['file']['size'], DocumentManager::get_course_quota())) {
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return 0;
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}
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//first we delete everything before uploading the file
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$this->delete_files();
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//Reload the filename variable
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$file_name = add_ext_on_mime($_FILES['file']['name'], $_FILES['file']['type']);
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$file_name = strtolower($file_name);
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$file_info = pathinfo($file_name);
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if ($is_nano == true) {
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$file_info['extension'] = 'wav';
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}
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$file_name = $this->filename.'.'.$file_info['extension'];
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if (in_array($file_info['extension'], $this->available_extensions)) {
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if (move_uploaded_file($_FILES['file']['tmp_name'], $this->store_path.$file_name)) {
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$this->store_filename = $this->store_path.$file_name;
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return 1;
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}
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}
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}
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}
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return 0;
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}
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/**
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* Show the audio file + a button to download
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* @param bool
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*/
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public function show_audio_file($show_delete_button = false)
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{
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$html = '';
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$file_path = $this->load_filename_if_exists();
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if (!empty($file_path)) {
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$url = $this->get_public_url(true);
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$actions = Display::url(Display::return_icon('save.png', get_lang('Download'), array(), ICON_SIZE_SMALL), $url, array('target'=>'_blank'));
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$download_button = Display::url(get_lang('Download'), $url, array('class' =>'btn btn-default'));
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if ($show_delete_button) {
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$actions .= ' '.Display::url(Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL), "#", array('onclick'=>'delete_file();'));
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}
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$basename = basename($file_path);
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$path_info = pathinfo($basename);
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if ($path_info['extension'] == 'wav') {
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$html .= '<script>
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$(document).ready( function() {
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var java_enabled = navigator.javaEnabled();
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if (java_enabled) {
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$("#nanogong_warning").hide();
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$("#nanogong_player_id").show();
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} else {
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$("#nanogong_warning").show();
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$("#nanogong_player_id").hide();
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}
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});
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</script>';
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$html .= '<div id="nanogong_player_id" class="nanogong_player_container">';
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$html .= '<div class="action_player">'.$actions.'</div>';
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$html .= '<div class="nanogong_player">';
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$html .= '<applet id="nanogong_player" archive="'.api_get_path(WEB_LIBRARY_PATH).'nanogong/nanogong.jar" code="gong.NanoGong" width="250" height="95" ALIGN="middle">';
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$html .= '<param name="ShowRecordButton" value="false" />'; // default true
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$html .= '<param name="ShowSaveButton" value="false" />'; //you can save in local computer | (default true)
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//echo '<param name="ShowAudioLevel" value="false" />'; // it displays the audiometer | (default true)
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$html .= '<param name="ShowTime" value="true" />'; // default false
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$html .= '<param name="Color" value="#FFFFFF" />';
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$html .= '<param name="ShowSpeedButton" value="false" />';
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//echo '<param name="StartTime" value="10.5" />';
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//echo '<param name="EndTime" value="65" />';
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$html .= '<param name="AudioFormat" value="ImaADPCM" />';// ImaADPCM (more speed), Speex (more compression)|(default Speex)
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//$html .= '<param name="AudioFormat" value="Speex" />';// ImaADPCM (more speed), Speex (more compression)|(default Speex)
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//Quality for ImaADPCM (low 8000, medium 11025, normal 22050, hight 44100) OR Quality for Speex (low 8000, medium 16000, normal 32000, hight 44100) | (default 44100)
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//echo '<param name="SamplingRate" value="32000" />';
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//echo '<param name="MaxDuration" value="60" />';
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$html .= '<param name="SoundFileURL" value="'.$url.'" />';//load a file |(default "")
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$html .= '</applet>';
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$html .= '</div>';
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$html .= '</div>';
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$html .= '<div id="nanogong_warning">'.Display::return_message(get_lang('BrowserDoesNotSupportNanogongPlayer'), 'warning').$download_button.'</div>';
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} elseif(in_array($path_info['extension'],array('mp3', 'ogg','wav'))) {
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$js_path = api_get_path(WEB_LIBRARY_PATH).'javascript/';
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$html .= '<link rel="stylesheet" href="'.$js_path.'jquery-jplayer/skins/blue/jplayer.blue.monday.css" type="text/css">';
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//$html .= '<link rel="stylesheet" href="' . $js_path . 'jquery-jplayer/skins/chamilo/jplayer.blue.monday.css" type="text/css">';
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$html .= '<script type="text/javascript" src="'.$js_path.'jquery-jplayer/jquery.jplayer.min.js"></script>';
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$html .= '<div class="nanogong_player"></div>';
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$html .= '<br /><div class="action_player">'.$actions.'</div><br /><br /><br />';
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$params = array(
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'url' => $url,
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'extension' =>$path_info['extension'],
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'count'=> 1
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);
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$jquery = DocumentManager::generate_jplayer_jquery($params);
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$html .= '<script>
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$(document).ready( function() {
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//Experimental changes to preview mp3, ogg files
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'.$jquery.'
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});
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</script>';
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$html .= DocumentManager::generate_media_preview(1, 'advanced');
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}
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}
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return $html;
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}
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/*
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var filename = document.getElementById("audio_title").value+".wav";
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var filename = filename.replace(/\s/g, "_");//replace spaces by _
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var filename = encodeURIComponent(filename);
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var filepath="'.urlencode($filepath).'";
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var dir="'.urlencode($dir).'";
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var course_code="'.urlencode($course_code).'";
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var urlnanogong="'.$url.'?filename="+filename+"&filepath="+filepath+"&dir="+dir+"&course_code="+course_code;
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*/
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/**
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* Returns the nanogong javascript code
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* @return string
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*/
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public function return_js()
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{
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$params = $this->get_params(true);
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$url = api_get_path(WEB_AJAX_PATH).'nanogong.ajax.php?a=save_file&'.$params.'&is_nano=1';
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$url_load_file = api_get_path(WEB_AJAX_PATH).'nanogong.ajax.php?a=show_audio&'.$params;
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$url_delete = api_get_path(WEB_AJAX_PATH).'nanogong.ajax.php?a=delete&'.$params;
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$js = '<script language="javascript">
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//lang vars
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var lang_no_applet = "'.get_lang('NanogongNoApplet').'";
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var lang_record_before_save = "'.get_lang('NanogongRecordBeforeSave').'";
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var lang_give_a_title = "'.get_lang('NanogongGiveTitle').'";
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var lang_failed_to_submit = "'.get_lang('NanogongFailledToSubmit').'";
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var lang_submitted = "'.get_lang('NanogongSubmitted').'";
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var lang_deleted = "'.get_lang('Deleted').'";
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var is_nano = 0;
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function check_gong() {
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//var record = document.getElementById("nanogong");
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var recorder;
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var java_enabled = navigator.javaEnabled()
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return java_enabled;
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}
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function show_simple_upload_form() {
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$("#no_nanogong_div").show();
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//$("#nanogong_div").hide();
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$("#preview").hide();
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}
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$(document).ready( function() {
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$("#no_nanogong_div").hide();
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$("#nanogong_div").hide();
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var check_js = check_gong();
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if (check_js == true) {
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$("#nanogong_div").show();
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$("#no_nanogong_div").hide();
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is_nano = 1;
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$(".nanogong_player").show();
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} else {
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$("#no_nanogong_div").show();
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$("#nanogong_div").hide();
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$(".nanogong_player").hide();
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}
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//show always the mp3/ogg upload form (for dev purposes)
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//$("#no_nanogong_div").show();
|
|
//$("#nanogong_div").hide();
|
|
});
|
|
|
|
function delete_file() {
|
|
$.ajax({
|
|
url: "'.$url_delete.'",
|
|
success:function(data) {
|
|
$("#status_warning").hide();
|
|
$("#status_ok").hide();
|
|
|
|
$("#messages").html(data);
|
|
$("#messages").show();
|
|
$("#preview").hide();
|
|
}
|
|
});
|
|
}
|
|
|
|
function upload_file() {
|
|
$("#form_nanogong_simple").submit();
|
|
}
|
|
|
|
function send_voice() {
|
|
$("#status_warning").hide();
|
|
$("#status_ok").hide();
|
|
$("#messages").hide();
|
|
|
|
var check_js = check_gong();
|
|
var recorder = document.getElementById("nanogong");
|
|
|
|
if (!recorder || !check_js) {
|
|
//alert(lang_no_applet)
|
|
$("#status_warning").html(lang_no_applet);
|
|
$("#status_warning").show();
|
|
|
|
//Show form
|
|
$("#no_nanogong_div").show();
|
|
$("#nanogong_div").hide();
|
|
return false;
|
|
}
|
|
|
|
var duration = parseInt(recorder.sendGongRequest("GetMediaDuration", "audio")) || 0;
|
|
|
|
if (duration <= 0) {
|
|
$("#status_warning").html(lang_record_before_save);
|
|
$("#status_warning").show();
|
|
return false;
|
|
}
|
|
|
|
var applet = document.getElementById("nanogong");
|
|
|
|
var ret = applet.sendGongRequest("PostToForm", "'.$url.'", "file", "", "temp"); // PostToForm, postURL, inputname, cookie, filename
|
|
|
|
if (ret == 1) {
|
|
$("#status_ok").html(lang_submitted);
|
|
$("#status_ok").show();
|
|
$.ajax({
|
|
url:"'.$url_load_file.'&is_nano="+is_nano,
|
|
success: function(data){
|
|
$("#preview").html(data);
|
|
$("#preview").show();
|
|
}
|
|
});
|
|
} else {
|
|
//alert(lang_submitted+"\n"+ret);
|
|
$("#status_warning").html(lang_failed_to_submit);
|
|
$("#status_warning").show();
|
|
}
|
|
return false;
|
|
}
|
|
</script>';
|
|
return $js;
|
|
}
|
|
|
|
/**
|
|
* Returns the HTML form to upload a nano file or upload a file
|
|
* @param string
|
|
*/
|
|
public function return_form($message = null)
|
|
{
|
|
|
|
$params = $this->get_params(true);
|
|
$url = api_get_path(WEB_AJAX_PATH).'nanogong.ajax.php?a=save_file&'.$params;
|
|
|
|
//check browser support and load form
|
|
$array_browser = api_browser_support('check_browser');
|
|
|
|
$preview_file = $this->show_audio_file(true, true);
|
|
|
|
$preview_file = Display::div(
|
|
$preview_file,
|
|
array('id' => 'preview', 'style' => 'text-align:center; padding-left: 25px;')
|
|
);
|
|
|
|
$html = '<center>';
|
|
|
|
//Use normal upload file
|
|
$html .= Display::return_icon('microphone.png', get_lang('PressRecordButton'),'', ICON_SIZE_BIG);
|
|
$html .='<br />';
|
|
|
|
$html .= '<div id="nanogong_div">';
|
|
|
|
$html .= '<applet id="nanogong" archive="'.api_get_path(WEB_LIBRARY_PATH).'nanogong/nanogong.jar" code="gong.NanoGong" width="250" height="95" align="middle">';
|
|
//echo '<param name="ShowRecordButton" value="false" />'; // default true
|
|
// echo '<param name="ShowSaveButton" value="false" />'; //you can save in local computer | (default true)
|
|
$html .= '<param name="ShowSpeedButton" value="false" />'; // default true
|
|
//echo '<param name="ShowAudioLevel" value="false" />'; // it displays the audiometer | (default true)
|
|
$html .= '<param name="ShowTime" value="true" />'; // default false
|
|
$html .= '<param name="Color" value="#FFFFFF" />'; // default #FFFFFF
|
|
//echo '<param name="StartTime" value="10.5" />';
|
|
//echo '<param name="EndTime" value="65" />';
|
|
$html .= '<param name="AudioFormat" value="ImaADPCM" />';// ImaADPCM (more speed), Speex (more compression)|(default Speex)
|
|
//$html .= '<param name="AudioFormat" value="Speex" />';// ImaADPCM (more speed), Speex (more compression)|(default Speex)
|
|
|
|
//echo '<param name="SamplingRate" value="32000" />';//Quality for ImaADPCM (low 8000, medium 11025, normal 22050, hight 44100) OR Quality for Speex (low 8000, medium 16000, normal 32000, hight 44100) | (default 44100)
|
|
//echo '<param name="MaxDuration" value="60" />';
|
|
//echo '<param name="SoundFileURL" value="http://somewhere.com/mysoundfile.wav" />';//load a file |(default "")
|
|
$html .= '</applet>';
|
|
|
|
$html .= '<br /><br /><br />';
|
|
|
|
$html .= '<form name="form_nanogong_advanced">';
|
|
$html .= '<input type="hidden" name="is_nano" value="1">';
|
|
$html .= '<a href="#" class="btn btn-default" onclick="send_voice()" />'.get_lang('SendRecord').'</a>';
|
|
$html .= '</form></div>';
|
|
|
|
|
|
$html .= Display::url(get_lang('ProblemsRecordingUploadYourOwnAudioFile'), 'javascript:void(0)', array('onclick' => 'show_simple_upload_form();'));
|
|
|
|
$html .= '<br /><br /><div id="no_nanogong_div">';
|
|
//$html .= Display::return_message(get_lang('BrowserNotSupportNanogongSend'), 'warning');
|
|
$html .= '<form id="form_nanogong_simple" class="form-search" action="'.$url.'" name="form_nanogong" method="POST" enctype="multipart/form-data">';
|
|
$html .= '<input type="file" name="file">';
|
|
$html .= '<a href="#" class="btn btn-default" onclick="upload_file()" /><i class="fa fa-upload"></i> '.get_lang('UploadFile').'</a>';
|
|
$html .= '</form>';
|
|
$html .= '</div>';
|
|
$html .= '</center>';
|
|
$html .= '<div style="display:none" id="status_ok" class="confirmation-message"></div><div style="display:none" id="status_warning" class="warning-message"></div>';
|
|
$html .= '<div id="messages">'.$message.'</div>';
|
|
$html .= $preview_file;
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* @param bool $return_as_query
|
|
* @return bool|string
|
|
*/
|
|
public function get_params($return_as_query = false)
|
|
{
|
|
if (empty($this->params)) {
|
|
return false;
|
|
}
|
|
if ($return_as_query) {
|
|
return http_build_query($this->params);
|
|
}
|
|
|
|
return $this->params;
|
|
}
|
|
|
|
/**
|
|
* @param $attribute
|
|
* @return mixed
|
|
*/
|
|
public function get_param_value($attribute)
|
|
{
|
|
if (isset($this->params[$attribute])) {
|
|
return $this->params[$attribute];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Show a button to load the form
|
|
* @return string
|
|
*/
|
|
public function show_button()
|
|
{
|
|
$params_string = $this->get_params(true);
|
|
$html = '<br />'.Display::url(
|
|
get_lang('RecordAnswer'),
|
|
api_get_path(
|
|
WEB_AJAX_PATH
|
|
).'nanogong.ajax.php?a=show_form&'.$params_string.'&TB_iframe=true&height=400&width=500',
|
|
array('class' => 'btn btn-default ajax')
|
|
);
|
|
$html .= '<br /><br />'.Display::return_message(get_lang('UseTheMessageBelowToAddSomeComments'));
|
|
return $html;
|
|
}
|
|
}
|
|
|