chamilo-lms2/main/document/create_audio.php

<?php
/* For licensing terms, see /license.txt */

use ChamiloSession as Session;

/**
 * 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
*/

//require_once '../inc/global.inc.php';
Session::write('whereami', 'document/createaudio');

$this_section = SECTION_COURSES;

$nameTools = get_lang('CreateAudio');

api_protect_course_script();
api_block_anonymous_users();

$groupRights = Session::read('group_member_with_upload_rights');
$groupId = api_get_group_id();

if (api_get_setting('enabled_text2audio') === 'false') {
	api_not_allowed(true);
}

$document_data = DocumentManager::get_document_data_by_id(
	$_REQUEST['id'],
	api_get_course_id()
);
if (empty($document_data)) {
    if (api_is_in_group()) {
		$group_properties = GroupManager::get_group_properties(
			$groupId
		);
		$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 (!empty($groupId)) {
    $interbreadcrumb[] = array(
        "url" => "../group/group_space.php?" . api_get_cidreq(),
        "name" => get_lang('GroupSpace')
    );
    $group = GroupManager:: get_group_properties($groupId);
	$path = explode('/', $dir);
    if ('/' . $path[1] != $group['directory']) {
		api_not_allowed(true);
	}
}

$interbreadcrumb[] = array(
    "url" => "./document.php?curdirpath=" . urlencode($dir) . "&" . api_get_cidreq(),
    "name" => get_lang('Documents')
);

if (!$is_allowed_in_course) {
	api_not_allowed(true);
}

if (!($is_allowed_to_edit || $groupRights ||
	DocumentManager::is_my_shared_folder(
		api_get_user_id(),
		Security::remove_XSS($dir),
		api_get_session_id()
	))
) {
	api_not_allowed(true);
}


/*	Header */
Event::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
    $url_to_who = cut($dir_array[$i], 80);
	$interbreadcrumb[] = array('url' => $url_dir, 'name' => $url_to_who);
    $dir_acum .= $dir_array[$i] . '/';
}

$service = isset($_GET['service']) ? $_GET['service'] : 'pediaphon';

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() . '&id=' . $document_id . '&service=pediaphon">' .
    Display::return_icon('pediaphon.png', get_lang('Pediaphon'), '', ICON_SIZE_MEDIUM) . '</a>';

echo '<a href="create_audio.php?' . api_get_cidreq() . '&id=' . $document_id . '&service=google">' .
    Display::return_icon('google.png', get_lang('GoogleAudio'), '', ICON_SIZE_MEDIUM) . '</a>';
echo '</div>';

?>
<!-- javascript and styles for textareaCounter-->
    <script>
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 (isset($_POST['text2voice_mode']) && $_POST['text2voice_mode'] == 'google') {
	downloadMP3_google($filepath, $dir);
} elseif (isset($_POST['text2voice_mode']) && $_POST['text2voice_mode'] == 'pediaphon') {
	downloadMP3_pediaphon($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;

while ($row = Database::fetch_array($result_select)) {
    $options[$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'] . ')';
	}
}

if ($service == 'google') {
    $selected_language = api_get_language_isocode();//lang default is the course language

    $form = new FormValidator('form1', 'post', api_get_self().'?'.api_get_cidreq(), '', array('id' => 'form1'));
    $form->addHeader(get_lang('HelpText2Audio'));
	$form->addElement('hidden', 'text2voice_mode', 'google');
	$form->addElement('hidden', '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'));
	//echo Display :: return_icon('info3.gif', get_lang('HelpGoogleAudio'), array('align' => 'absmiddle', 'hspace' => '3px'), false);
	$form->addButtonSave(get_lang('SaveMP3'));
	$defaults = array();
	$defaults['lang'] = $selected_language;
	$form->setDefaults($defaults);
	$form->display();
}

if ($service == 'pediaphon') {
	//lang default is a default message
	$selected_language = "defaultmessage";
    $options_pedia['defaultmessage'] = get_lang('FirstSelectALanguage');
    $options['defaultmessage'] = get_lang('FirstSelectALanguage');

    $form = new FormValidator('form2', 'post', api_get_self().'?'.api_get_cidreq(), '', array('id' => 'form2'));
    $form->addHeader(get_lang('HelpText2Audio'));
    $form->addElement('hidden', 'text2voice_mode', 'pediaphon');
	$form->addElement('hidden', 'id', $document_id);
	$form->addElement('text', 'title', get_lang('Title'));
    $form->addSelect('lang', get_lang('Language'), $options_pedia, array('class' => 'lang'));
    $form->addSelect('voices', get_lang('Voice'), array(get_lang('FirstSelectALanguage')), array('id' => 'voices'));
	$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'));
	//echo Display :: return_icon('info3.gif', get_lang('HelpPediaphon'), array('align' => 'absmiddle', 'hspace' => '3px'), false);
	$form->addButtonSave(get_lang('SaveMP3'));
	$defaults = array();
	$defaults['lang'] = $selected_language;
	$form->setDefaults($defaults);
	$form->display();

	?>

	<!-- javascript form name form2 update voices -->
    <script>
        var langslist = document.form2.lang
        var voiceslist = document.form2.voices
        var voices = new Array()

	<!--German -->
        voices['de'] = ["<?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['en'] = ["<?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['es'] = ["<?php echo get_lang('Male') . ' (es5 HQ)'; ?>|es5"]

	<!--French -->
        voices['fr'] = ["<?php echo get_lang('Female') . ' (fr8 HQ)'; ?>|fr8"]

        $(document).ready(function () {
            $('.lang').on('change', function () {
                var selectedvoicegroup = this.value;
                $('#voices').empty();
                for (i = 0; i < voices[selectedvoicegroup].length; i++) {
                    var value = voices[selectedvoicegroup][i].split("|")[1];
                    var text = voices[selectedvoicegroup][i].split("|")[0];
                    var newOption = $('<option value="' + value + '">' + text + '</option>');
                    $('#voices').append(newOption);
                    $('#voices').selectpicker('refresh');
	            }
            });
        });
	</script>
<?php
}//end pediaphon

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)
{
    $location = 'create_audio.php?' . api_get_cidreq() . '&id=' . intval($_POST['id']) . '&service=google';

	//security
	if (!isset($_POST['lang']) && !isset($_POST['text']) && !isset($_POST['title']) && !isset($filepath) && !isset($dir)) {
        echo '<script>window.location.href="' . $location . '"</script>';
		return;
	}

	$_course = api_get_course_info();
	$_user = api_get_user_info();

    $clean_title = trim($_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)
	$clean_text = api_replace_dangerous_char($clean_text);

	// adding the file
	// add new file to disk

	$proxySettings = api_get_configuration_value('proxy_settings');
    $key = api_get_configuration_value('translate_app_google_key');
    $url = "https://www.googleapis.com/language/translate/v2?key=$key&" . $clean_lang . "&target=$clean_lang&q=" . urlencode($clean_text) . "";

	if (empty($proxySettings)) {
		$content = file_get_contents($url);
	} else {
		$context = stream_context_create($proxySettings);
		$content = file_get_contents($url, false, $context);
	}

    file_put_contents(
        $documentPath,
        $content
    );

	// add document to database
	$current_session_id = api_get_session_id();
	$groupId = api_get_group_id();
    $relativeUrlPath = $dir;
	$doc_id = 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)
{
    $location = 'create_audio.php?' . api_get_cidreq() . '&id=' . intval($_POST['id']) . '&service=pediaphon';
	//security
    if (!isset($_POST['lang']) && !isset($_POST['text']) && !isset($_POST['title']) && !isset($filepath) && !isset($dir)) {
        echo '<script>window.location.href="' . $location . '"</script>';
		return;
	}
	$_course = api_get_course_info();
	$_user = api_get_user_info();
    $clean_title = trim($_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;
	$clean_text = api_replace_dangerous_char($clean_text);

	//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=speak";
    $opts = array(
        'http' =>
		array(
            'method' => 'POST',
            'header' => "Content-Type: application/x-www-form-urlencoded\r\n",
		     "Content-Length: " . strlen($data) . "\r\n",
		     'content' => $data
		)
	);
	// Download the whole HTML page
    $context = stream_context_create($opts);
    // Download the whole HTML page
    $previous_returntext2voice = file_get_contents($url_pediaphon, false, $context);

	//extract the audio file path
	$search_source = preg_match($find_t2v, $previous_returntext2voice, $hits);
	$souce_end = substr($hits[0], 0, -1);
	//download file
	$returntext2voice = file_get_contents($souce_end);
	//save file
	$f = @file_put_contents($documentPath, $returntext2voice);
	if ($f === false && !empty($php_errormsg)) {
                error_log($php_errormsg);
            }
	//add document to database
	$current_session_id = api_get_session_id();
	$groupId = api_get_group_id();
    $relativeUrlPath = $dir;
    $doc_id = 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>';
}