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

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<?php
/* For licensing terms, see /license.txt */
/**
* This file allows creating audio files from a text.
*
* @package chamilo.document
*
* @author Juan Carlos Raña Trabado
* @since 8/January/2011
* TODO:clean all file
*/
/**
* Code
*/
/* INIT SECTION */
$language_file = array('document');
require_once '../inc/global.inc.php';
$_SESSION['whereami'] = 'document/createaudio';
$this_section = SECTION_COURSES;
require_once 'document.inc.php';
$nameTools = get_lang('CreateAudio');
api_protect_course_script();
api_block_anonymous_users();
if (api_get_setting('enabled_text2audio') == 'false') {
api_not_allowed(true);
}
$document_data = DocumentManager::get_document_data_by_id($_GET['id'], api_get_course_id());
if (empty($document_data)) {
if (api_is_in_group()) {
$group_properties = GroupManager::get_group_properties(api_get_group_id());
$document_id = DocumentManager::get_document_id(api_get_course_info(), $group_properties['directory']);
$document_data = DocumentManager::get_document_data_by_id($document_id, api_get_course_id());
}
}
$document_id = $document_data['id'];
$dir = $document_data['path'];
//jquery textareaCounter
$htmlHeadXtra[] = '<script src="../inc/lib/javascript/textareacounter/jquery.textareaCounter.plugin.js" type="text/javascript"></script>';
$is_allowed_to_edit = api_is_allowed_to_edit(null, true);
// Please, do not modify this dirname formatting
if (strstr($dir, '..')) {
$dir = '/';
}
if ($dir[0] == '.') {
$dir = substr($dir, 1);
}
if ($dir[0] != '/') {
$dir = '/'.$dir;
}
if ($dir[strlen($dir) - 1] != '/') {
$dir .= '/';
}
$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document'.$dir;
if (!is_dir($filepath)) {
$filepath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
$dir = '/';
}
//groups //TODO: clean
if (isset ($_SESSION['_gid']) && $_SESSION['_gid'] != 0) {
$req_gid = '&amp;gidReq='.$_SESSION['_gid'];
$interbreadcrumb[] = array(
"url" => "../group/group_space.php?gidReq=".$_SESSION['_gid'],
"name" => get_lang('GroupSpace')
);
$noPHP_SELF = true;
$to_group_id = $_SESSION['_gid'];
$group = GroupManager :: get_group_properties($to_group_id);
$path = explode('/', $dir);
if ('/'.$path[1] != $group['directory']) {
api_not_allowed(true);
}
}
$interbreadcrumb[] = array(
"url" => "./document.php?curdirpath=".urlencode($dir).$req_gid,
"name" => get_lang('Documents')
);
if (!($is_allowed_to_edit || $_SESSION['group_member_with_upload_rights'] || is_my_shared_folder(
api_get_user_id(),
Security::remove_XSS($dir),
api_get_session_id()
))
) {
api_not_allowed(true);
}
/* Header */
event_access_tool(TOOL_DOCUMENT);
$display_dir = $dir;
if (isset ($group)) {
$display_dir = explode('/', $dir);
unset ($display_dir[0]);
unset ($display_dir[1]);
$display_dir = implode('/', $display_dir);
}
// Interbreadcrumb for the current directory root path
// Copied from document.php
$dir_array = explode('/', $dir);
$array_len = count($dir_array);
$dir_acum = '';
for ($i = 0; $i < $array_len; $i++) {
$url_dir = 'document.php?&curdirpath='.$dir_acum.$dir_array[$i];
//Max char 80
$url_to_who = Text::cut($dir_array[$i], 80);
if ($is_certificate_mode) {
$interbreadcrumb[] = array(
'url' => $url_dir.'&selectcat='.Security::remove_XSS($_GET['selectcat']),
'name' => $url_to_who
);
} else {
$interbreadcrumb[] = array('url' => $url_dir, 'name' => $url_to_who);
}
$dir_acum .= $dir_array[$i].'/';
}
Display :: display_header($nameTools, 'Doc');
echo '<div class="actions">';
echo '<a href="document.php?id='.$document_id.'">'.Display::return_icon(
'back.png',
get_lang('BackTo').' '.get_lang('DocumentsOverview'),
'',
ICON_SIZE_MEDIUM
).'</a>';
echo '<a href="create_audio.php?'.api_get_cidreq().'&amp;id='.$document_id.'&amp;dt2a=google">'.Display::return_icon(
'google.png',
get_lang('GoogleAudio'),
'',
ICON_SIZE_MEDIUM
).'</a>';
echo '<a href="create_audio.php?'.api_get_cidreq().'&amp;id='.$document_id.'&amp;dt2a=pediaphon">'.Display::return_icon(
'pediaphon.png',
get_lang('Pediaphon'),
'',
ICON_SIZE_MEDIUM
).'</a>';
echo '</div>';
?>
<!-- javascript and styles for textareaCounter-->
<script type="text/javascript">
var info;
$(document).ready(function () {
var options = {
'maxCharacterSize':100,
'originalStyle':'originalTextareaInfo',
'warningStyle':'warningTextareaInfo',
'warningNumber':20,
'displayFormat':'#input/#max'
};
$('#textarea_google').textareaCount(options, function (data) {
$('#textareaCallBack').html(data);
});
});
</script>
<style>
.overview {
background: #FFEC9D;
padding: 10px;
width: 90%;
border: 1px solid #CCCCCC;
}
.originalTextareaInfo {
font-size: 12px;
color: #000000;
text-align: right;
}
.warningTextareaInfo {
color: #FF0000;
font-weight: bold;
text-align: right;
}
#showData {
height: 70px;
width: 200px;
border: 1px solid #CCCCCC;
padding: 10px;
margin: 10px;
}
</style>
<div id="textareaCallBack"></div>
<?php
if (Security::remove_XSS($_POST['text2voice_mode']) == 'google') {
downloadMP3_google($filepath, $dir);
} elseif (Security::remove_XSS($_POST['text2voice_mode']) == 'pediaphon') {
downloadMP3_pediaphon($filepath, $dir);
}
$tbl_admin_languages = Database :: get_main_table(TABLE_MAIN_LANGUAGE);
$sql_select = "SELECT * FROM $tbl_admin_languages";
$result_select = Database::query($sql_select);
$options = $options_pedia = array();
$selected_language = null;
$options_pedia['defaultmessage'] = get_lang('FirstSelectALanguage'); //need read before platform languages
while ($row = Database::fetch_array($result_select)) {
if (api_get_setting('platformLanguage') == $row['english_name']) {
//$selected_language = $row['isocode'];//lang default is the default platform language
}
$options[$row['isocode']] = $row['original_name'].' ('.$row['english_name'].')';
if (in_array($row['isocode'], array('de', 'en', 'es', 'fr'))) {
$options_pedia[$row['isocode']] = $row['original_name'].' ('.$row['english_name'].')';
}
}
$icon = Display::return_icon('text2audio.png', get_lang('HelpText2Audio'), '', ICON_SIZE_MEDIUM);
echo '<div class="page-header"><h2>'.$icon.get_lang('HelpText2Audio').'</h2></div>';
if (Security::remove_XSS($_GET['dt2a']) == 'google') {
$selected_language = api_get_language_isocode(); //lang default is the course language
echo '<div>';
$form = new FormValidator('form1', 'post', null, '', array('id' => 'form1'));
$form->addElement('hidden', 'text2voice_mode', 'google');
$form->addElement('hidden', 'document_id', $document_id);
$form->addElement('text', 'title', get_lang('Title'));
$form->addElement('select', 'lang', get_lang('Language'), $options);
$form->addElement(
'textarea',
'text',
get_lang('InsertText2Audio'),
array('id' => 'textarea_google', 'class' => 'span6')
);
//echo Display :: return_icon('info3.gif', get_lang('HelpGoogleAudio'), array('align' => 'absmiddle', 'hspace' => '3px'), false);
$form->addElement('style_submit_button', 'submit', get_lang('SaveMP3'), 'class="save"');
$defaults = array();
$defaults['lang'] = $selected_language;
$form->setDefaults($defaults);
$form->display();
echo '</div>';
}
if (Security::remove_XSS($_GET['dt2a']) == 'pediaphon') {
//lang default is a default message
$selected_language = "defaultmessage";
$options['defaultmessage'] = get_lang('FirstSelectALanguage');
echo '<div>';
$form = new FormValidator('form2', 'post', null, '', array('id' => 'form2'));
$form->addElement('hidden', 'text2voice_mode', 'pediaphon');
$form->addElement('hidden', 'document_id', $document_id);
$form->addElement('text', 'title', get_lang('Title'));
$form->addElement(
'select',
'lang',
get_lang('Language'),
$options_pedia,
array('onclick' => 'update_voices(this.selectedIndex);')
);
$form->addElement('select', 'voices', get_lang('Voice'), array(get_lang('FirstSelectALanguage')), array());
$speed_options = array();
$speed_options['1'] = get_lang('Normal');
$speed_options['0.75'] = get_lang('GoFaster');
$speed_options['0.8'] = get_lang('Fast');
$speed_options['1.2'] = get_lang('Slow');
$speed_options['1.6'] = get_lang('SlowDown');
$form->addElement('select', 'speed', get_lang('Speed'), $speed_options, array());
$form->addElement(
'textarea',
'text',
get_lang('InsertText2Audio'),
array('id' => 'textarea_pediaphon', 'class' => 'span6')
);
//echo Display :: return_icon('info3.gif', get_lang('HelpPediaphon'), array('align' => 'absmiddle', 'hspace' => '3px'), false);
$form->addElement('style_submit_button', 'submit', get_lang('SaveMP3'), 'class="save"');
$defaults = array();
$defaults['lang'] = $selected_language;
$form->setDefaults($defaults);
$form->display();
echo '</div>';
?>
<!-- javascript form name form2 update voices -->
<script>
var langslist = document.form2.lang
var voiceslist = document.form2.voices
var voices = new Array();
voices[0] = ["<?php echo get_lang('FirstSelectALanguage'); ?>"]
// German
voices[1] = ["<?php echo get_lang('Female').' (de1)'; ?>|de1", "<?php echo get_lang(
'Male'
).' (de2)'; ?>|de2", "<?php echo get_lang('Female').' (de3)'; ?>|de3", "<?php echo get_lang(
'Male'
).' (de4)'; ?>|de4", "<?php echo get_lang('Female').' (de5)'; ?>|de5", "<?php echo get_lang(
'Male'
).' (de6)'; ?>|de6", "<?php echo get_lang('Female').' (de7)'; ?>|de7", "<?php echo get_lang(
'Female'
).' (de8 HQ)'; ?>|de8"]
// English
voices[2] = ["<?php echo get_lang('Male').' (en1)'; ?>|en1", "<?php echo get_lang(
'Male'
).' (en2 HQ)'; ?>|en2", "<?php echo get_lang('Female').' (us1)'; ?>| us1", "<?php echo get_lang(
'Male'
).' (us2)'; ?>|us2", "<?php echo get_lang('Male').' (us3)'; ?>|us3", "<?php echo get_lang(
'Female'
).'(us4 HQ)'; ?>|us4"]
//Spanish
voices[3] = ["<?php echo get_lang('Male').' (es5 HQ)'; ?>|es5"]
//French
voices[4] = ["<?php echo get_lang('Female').' (fr8 HQ)'; ?>|fr8"]
function update_voices(selectedvoicegroup) {
voiceslist.options.length = 0
for (i = 0; i < voices[selectedvoicegroup].length; i++)
voiceslist.options[voiceslist.options.length] = new Option(voices[selectedvoicegroup][i].split("|")[0], voices[selectedvoicegroup][i].split("|")[1])
}
</script>
<?php
}
//end pediaphon
//vozMe services
//disabled for a time
/*
echo '<div>&nbsp;</div><input type="checkbox" value="1" name="checktext2voice" onclick="javascript: if(this.checked){document.getElementById(\'option3\').style.display=\'block\';}else{document.getElementById(\'option3\').style.display=\'none\';}"/>&nbsp;<img src="../img/file_sound.gif" title="'.get_lang('HelpvozMe').'" alt="'.get_lang('vozMe').'"/>&nbsp;'.get_lang('vozMe').'';
echo '&nbsp;&nbsp;&nbsp;<span id="msg_error3" style="display:none;color:red"></span>';
echo '<div id="option3" style="padding:4px; margin:5px; border:1px dotted; display:none;">';
echo '<form id="form3" name="form3" method="post" action="http://vozme.com/text2voice.php" target="mymp3" class="formw">';
echo '<br/>';
echo '<label>'.get_lang('Language').': ';
$tbl_admin_languages = Database :: get_main_table(TABLE_MAIN_LANGUAGE);
$sql_select = "SELECT * FROM $tbl_admin_languages";
$result_select = Database::query($sql_select);
echo '<select name="lang" id="select">';
while ($row = Database::fetch_array($result_select)) {
if (in_array($row['isocode'], array('ca', 'en', 'es', 'hi', 'it', 'pt'))){
if (api_get_setting('platformLanguage')==$row['english_name']){
echo '<option value="'.$row['isocode'].'" selected="selected">'.$row['original_name'].' ('.$row['english_name'].')</option>';
}
else{
echo '<option value="'.$row['isocode'].'">'.$row['original_name'].' ('.$row['english_name'].')</option>';
}
}
}
echo '</select>';
echo '</label>';
echo '<label>&nbsp;&nbsp;'.get_lang('Voice').': ';
echo '<select name="gn" id="select1">';
echo '<option value="ml">'.get_lang('Male').'</option>';
echo '<option value="fm">'.get_lang('Female').'</option>';
echo '</select>';
echo '</label>';
echo '<br/><br/>';
echo '<div>'.get_lang('InsertText2Audio').'</div>';
echo '<br/>';
echo '<label>';
echo '<textarea name="text" id="textarea" cols="70" rows="10"></textarea>';
echo '</label>';
echo '<br/><br/>';
echo '<button class="save" type="submit" name="SendText2Audio">'.get_lang('BuildMP3').'</button>';
echo '<br/>';
echo '</form>';
echo '</div>';
*/
echo '</div>';
Display :: display_footer();
//Functions. TODO:all at one
/**
* This function save a post into a file mp3 from google services
*
* @param $filepath
* @param $dir
* @author Juan Carlos Raña Trabado <herodoto@telefonica.net>
* @version january 2011, chamilo 1.8.8
*/
function downloadMP3_google($filepath, $dir)
{
$location = 'create_audio.php?'.api_get_cidreq().'&id='.Security::remove_XSS($_POST['document_id']).'&dt2a=google';
//security
if (!isset($_POST['lang']) && !isset($_POST['text']) && !isset($_POST['title']) && !isset($filepath) && !isset($dir)) {
echo '<script>window.location.href="'.$location.'"</script>';
return;
}
global $_course, $_user;
$clean_title = trim($_POST['title']);
$clean_text = trim($_POST['text']);
if (empty($clean_title) || empty($clean_text)) {
echo '<script>window.location.href="'.$location.'"</script>';
return;
}
$clean_title = Security::remove_XSS($clean_title);
$clean_title = Database::escape_string($clean_title);
$clean_title = str_replace(' ', '_', $clean_title); //compound file names
$clean_text = Security::remove_XSS($clean_text);
$clean_lang = Security::remove_XSS($_POST['lang']);
$extension = 'mp3';
$audio_filename = $clean_title.'.'.$extension;
$audio_title = str_replace('_', ' ', $clean_title);
//prevent duplicates
if (file_exists($filepath.'/'.$clean_title.'.'.$extension)) {
$i = 1;
while (file_exists($filepath.'/'.$clean_title.'_'.$i.'.'.$extension)) {
$i++;
}
$audio_filename = $clean_title.'_'.$i.'.'.$extension;
$audio_title = $clean_title.'_'.$i.'.'.$extension;
$audio_title = str_replace('_', ' ', $audio_title);
}
$documentPath = $filepath.'/'.$audio_filename;
//prev for a fine unicode, borrowed from main api TODO:clean
// Safe replacements for some non-letter characters (whitout blank spaces)
$search = array(
"\0",
"\t",
"\n",
"\r",
"\x0B",
'/',
"\\",
'"',
"'",
'?',
'*',
'>',
'<',
'|',
':',
'$',
'(',
')',
'^',
'[',
']',
'#',
'+',
'&',
'%'
);
$replace = array(
'',
'_',
'_',
'_',
'_',
'-',
'-',
'-',
'_',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-'
);
$filename = $clean_text;
// Encoding detection.
$encoding = api_detect_encoding($filename);
// Converting html-entities into encoded characters.
$filename = api_html_entity_decode($filename, ENT_QUOTES, $encoding);
// Transliteration to ASCII letters, they are not dangerous for filesystems.
$filename = api_transliterate($filename, 'x', $encoding);
// Replacing remaining dangerous non-letter characters.
$clean_text = str_replace($search, $replace, $filename);
$returntext2voice = file_get_contents(
"http://translate.google.com/translate_tts?tl=".$clean_lang."&q=".urlencode($clean_text).""
);
//make a temporal file for get the file size
$tmpfname = tempnam("/tmp", "CTF");
$handle = fopen($tmpfname, "w");
fwrite($handle, $returntext2voice);
fclose($handle);
// Check if there is enough space in the course to save the file
if (!DocumentManager::enough_space(filesize($tmpfname), DocumentManager::get_course_quota())) {
unlink($tmpfname);
die(get_lang('UplNotEnoughSpace'));
}
//erase temporal file
unlink($tmpfname);
//adding the file
//add new file to disk
file_put_contents($documentPath, $returntext2voice);
//add document to database
$current_session_id = api_get_session_id();
$groupId = $_SESSION['_gid'];
$file_size = filesize($documentPath);
$relativeUrlPath = $dir;
$doc_id = FileManager::add_document(
$_course,
$relativeUrlPath.$audio_filename,
'file',
filesize($documentPath),
$audio_title
);
api_item_property_update(
$_course,
TOOL_DOCUMENT,
$doc_id,
'DocumentAdded',
$_user['user_id'],
$groupId,
null,
null,
null,
$current_session_id
);
Display::display_confirmation_message(get_lang('DocumentCreated'));
//return to location
echo '<script>window.location.href="'.$location.'"</script>';
}
/**
* This function save a post into a file mp3 from pediaphon services
*
* @param $filepath
* @param $dir
* @author Juan Carlos Raña Trabado <herodoto@telefonica.net>
* @version january 2011, chamilo 1.8.8
*/
function downloadMP3_pediaphon($filepath, $dir)
{
$location = 'create_audio.php?'.api_get_cidreq().'&id='.Security::remove_XSS(
$_POST['document_id']
).'&dt2a=pediaphon';
//security
if (!isset($_POST['lang']) && !isset($_POST['text']) && !isset($_POST['title']) && !isset($filepath) && !isset($dir)) {
echo '<script>window.location.href="'.$location.'"</script>';
return;
}
global $_course, $_user;
$clean_title = trim($_POST['title']);
$clean_title = Database::escape_string($clean_title);
$clean_text = trim($_POST['text']);
$clean_voices = Security::remove_XSS($_POST['voices']);
if (empty($clean_title) || empty($clean_text) || empty($clean_voices)) {
echo '<script>window.location.href="'.$location.'"</script>';
return;
}
$clean_title = Security::remove_XSS($clean_title);
$clean_title = Database::escape_string($clean_title);
$clean_title = str_replace(' ', '_', $clean_title); //compound file names
$clean_text = Security::remove_XSS($clean_text);
$clean_lang = Security::remove_XSS($_POST['lang']);
$clean_speed = Security::remove_XSS($_POST['speed']);
$extension = 'mp3';
$audio_filename = $clean_title.'.'.$extension;
$audio_title = str_replace('_', ' ', $clean_title);
//prevent duplicates
if (file_exists($filepath.'/'.$clean_title.'.'.$extension)) {
$i = 1;
while (file_exists($filepath.'/'.$clean_title.'_'.$i.'.'.$extension)) {
$i++;
}
$audio_filename = $clean_title.'_'.$i.'.'.$extension;
$audio_title = $clean_title.'_'.$i.'.'.$extension;
$audio_title = str_replace('_', ' ', $audio_title);
}
$documentPath = $filepath.'/'.$audio_filename;
//prev for a fine unicode, borrowed from main api TODO:clean
// Safe replacements for some non-letter characters (whitout blank spaces)
$search = array(
"\0",
"\t",
"\n",
"\r",
"\x0B",
'/',
"\\",
'"',
"'",
'?',
'*',
'>',
'<',
'|',
':',
'$',
'(',
')',
'^',
'[',
']',
'#',
'+',
'&',
'%'
);
$replace = array(
'',
'_',
'_',
'_',
'_',
'-',
'-',
'-',
'_',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-',
'-'
);
$filename = $clean_text;
// Encoding detection.
$encoding = api_detect_encoding($filename);
// Converting html-entities into encoded characters.
$filename = api_html_entity_decode($filename, ENT_QUOTES, $encoding);
// Transliteration to ASCII letters, they are not dangerous for filesystems.
$filename = api_transliterate($filename, 'x', $encoding);
// Replacing remaining dangerous non-letter characters.
$clean_text = str_replace($search, $replace, $filename);
//adding the file
if ($clean_lang == 'de') {
$url_pediaphon = 'http://www.pediaphon.org/~bischoff/radiopedia/sprich_multivoice.cgi';
$find_t2v = '/http\:\/\/www\.pediaphon\.org\/\~bischoff\/radiopedia\/mp3\/(.*)\.mp3\"/';
} else {
$url_pediaphon = 'http://www.pediaphon.org/~bischoff/radiopedia/sprich_multivoice_'.$clean_lang.'.cgi'; //en, es, fr
$find_t2v = '/http\:\/\/www\.pediaphon\.org\/\~bischoff\/radiopedia\/mp3\/'.$clean_lang.'\/(.*)\.mp3\"/';
}
$data = "stimme=".$clean_voices."&inputtext=".$clean_text."&speed=".$clean_speed."&go=go";
$opts = array(
'http' =>
array(
'method' => 'POST',
'header' => "Content-Type: application/x-www-form-urlencoded\r\n",
"Content-Length: ".strlen($data)."\r\n",
'content' => $data
)
);
$context = stream_context_create($opts);
$previous_returntext2voice = file_get_contents($url_pediaphon, false, $context);
//clean file contents
$search_source = preg_match($find_t2v, $previous_returntext2voice, $hits);
$souce_end = substr($hits[0], 0, -1);
$returntext2voice = file_get_contents($souce_end);
//make a temporal file for get the file size
$tmpfname = tempnam("/tmp", "CTF");
$handle = fopen($tmpfname, "w");
fwrite($handle, $returntext2voice);
fclose($handle);
// Check if there is enough space in the course to save the file
if (!DocumentManager::enough_space(filesize($tmpfname), DocumentManager::get_course_quota())) {
unlink($tmpfname);
die(get_lang('UplNotEnoughSpace'));
}
//erase temporal file
unlink($tmpfname);
//save file
file_put_contents($documentPath, $returntext2voice);
//add document to database
$current_session_id = api_get_session_id();
$groupId = $_SESSION['_gid'];
$file_size = filesize($documentPath);
$relativeUrlPath = $dir;
$doc_id = FileManager::add_document(
$_course,
$relativeUrlPath.$audio_filename,
'file',
filesize($documentPath),
$audio_title
);
api_item_property_update(
$_course,
TOOL_DOCUMENT,
$doc_id,
'DocumentAdded',
$_user['user_id'],
$groupId,
null,
null,
null,
$current_session_id
);
Display::display_confirmation_message(get_lang('DocumentCreated'));
//return to location
echo '<script>window.location.href="'.$location.'"</script>';
}