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- <?php
- /* For licensing terms, see /license.txt */
- /**
- * Class DocumentManager
- * This is the document library for Chamilo.
- * It is / will be used to provide a service layer to all document-using tools.
- * and eliminate code duplication fro group documents, scorm documents, main documents.
- * Include/require it in your code to use its functionality.
- *
- * @package chamilo.library
- */
- class DocumentManager
- {
- private function __construct()
- {
- }
- /**
- * @param string
- * @return the document folder quota for the current course, in bytes, or the default quota
- */
- public static function get_course_quota($course_code = null)
- {
- if (empty($course_code)) {
- $course_info = api_get_course_info();
- } else {
- $course_info = api_get_course_info($course_code);
- }
- $course_quota = null;
- if (empty($course_info)) {
- return DEFAULT_DOCUMENT_QUOTA;
- } else {
- $course_quota = $course_info['disk_quota'];
- }
- if (is_null($course_quota) || empty($course_quota)) {
- // Course table entry for quota was null, then use default value
- $course_quota = DEFAULT_DOCUMENT_QUOTA;
- }
- return $course_quota;
- }
- /**
- * Get the content type of a file by checking the extension
- * We could use mime_content_type() with php-versions > 4.3,
- * but this doesn't work as it should on Windows installations
- *
- * @param string $filename or boolean TRUE to return complete array
- * @author ? first version
- * @author Bert Vanderkimpen
- * @return string
- *
- */
- public static function file_get_mime_type($filename)
- {
- // All MIME types in an array (from 1.6, this is the authorative source)
- // Please, keep this alphabetical if you add something to this list!
- $mime_types = array(
- 'ai' => 'application/postscript',
- 'aif' => 'audio/x-aiff',
- 'aifc' => 'audio/x-aiff',
- 'aiff' => 'audio/x-aiff',
- 'asf' => 'video/x-ms-asf',
- 'asc' => 'text/plain',
- 'au' => 'audio/basic',
- 'avi' => 'video/x-msvideo',
- 'bcpio' => 'application/x-bcpio',
- 'bin' => 'application/octet-stream',
- 'bmp' => 'image/bmp',
- 'cdf' => 'application/x-netcdf',
- 'class' => 'application/octet-stream',
- 'cpio' => 'application/x-cpio',
- 'cpt' => 'application/mac-compactpro',
- 'csh' => 'application/x-csh',
- 'css' => 'text/css',
- 'dcr' => 'application/x-director',
- 'dir' => 'application/x-director',
- 'djv' => 'image/vnd.djvu',
- 'djvu' => 'image/vnd.djvu',
- 'dll' => 'application/octet-stream',
- 'dmg' => 'application/x-diskcopy',
- 'dms' => 'application/octet-stream',
- 'doc' => 'application/msword',
- 'docm' => 'application/vnd.ms-word.document.macroEnabled.12',
- 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
- 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
- 'dvi' => 'application/x-dvi',
- 'dwg' => 'application/vnd.dwg',
- 'dwf' => 'application/vnd.dwf',
- 'dxf' => 'application/vnd.dxf',
- 'dxr' => 'application/x-director',
- 'eps' => 'application/postscript',
- 'epub' => 'application/epub+zip',
- 'etx' => 'text/x-setext',
- 'exe' => 'application/octet-stream',
- 'ez' => 'application/andrew-inset',
- 'gif' => 'image/gif',
- 'gtar' => 'application/x-gtar',
- 'gz' => 'application/x-gzip',
- 'hdf' => 'application/x-hdf',
- 'hqx' => 'application/mac-binhex40',
- 'htm' => 'text/html',
- 'html' => 'text/html',
- 'ice' => 'x-conference-xcooltalk',
- 'ief' => 'image/ief',
- 'iges' => 'model/iges',
- 'igs' => 'model/iges',
- 'jar' => 'application/java-archiver',
- 'jpe' => 'image/jpeg',
- 'jpeg' => 'image/jpeg',
- 'jpg' => 'image/jpeg',
- 'js' => 'application/x-javascript',
- 'kar' => 'audio/midi',
- 'lam' => 'application/vnd.ms-excel.addin.macroEnabled.12',
- 'latex' => 'application/x-latex',
- 'lha' => 'application/octet-stream',
- 'log' => 'text/plain',
- 'lzh' => 'application/octet-stream',
- 'm1a' => 'audio/mpeg',
- 'm2a' => 'audio/mpeg',
- 'm3u' => 'audio/x-mpegurl',
- 'man' => 'application/x-troff-man',
- 'me' => 'application/x-troff-me',
- 'mesh' => 'model/mesh',
- 'mid' => 'audio/midi',
- 'midi' => 'audio/midi',
- 'mov' => 'video/quicktime',
- 'movie' => 'video/x-sgi-movie',
- 'mp2' => 'audio/mpeg',
- 'mp3' => 'audio/mpeg',
- 'mp4' => 'video/mpeg4-generic',
- 'mpa' => 'audio/mpeg',
- 'mpe' => 'video/mpeg',
- 'mpeg' => 'video/mpeg',
- 'mpg' => 'video/mpeg',
- 'mpga' => 'audio/mpeg',
- 'ms' => 'application/x-troff-ms',
- 'msh' => 'model/mesh',
- 'mxu' => 'video/vnd.mpegurl',
- 'nc' => 'application/x-netcdf',
- 'oda' => 'application/oda',
- 'oga' => 'audio/ogg',
- 'ogg' => 'application/ogg',
- 'ogx' => 'application/ogg',
- 'ogv' => 'video/ogg',
- 'pbm' => 'image/x-portable-bitmap',
- 'pct' => 'image/pict',
- 'pdb' => 'chemical/x-pdb',
- 'pdf' => 'application/pdf',
- 'pgm' => 'image/x-portable-graymap',
- 'pgn' => 'application/x-chess-pgn',
- 'pict' => 'image/pict',
- 'png' => 'image/png',
- 'pnm' => 'image/x-portable-anymap',
- 'potm' => 'application/vnd.ms-powerpoint.template.macroEnabled.12',
- 'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
- 'pps' => 'application/vnd.ms-powerpoint',
- 'ppam' => 'application/vnd.ms-powerpoint.addin.macroEnabled.12',
- 'ppsm' => 'application/vnd.ms-powerpoint.slideshow.macroEnabled.12',
- 'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
- 'pptm' => 'application/vnd.ms-powerpoint.presentation.macroEnabled.12',
- 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
- 'ppm' => 'image/x-portable-pixmap',
- 'ppt' => 'application/vnd.ms-powerpoint',
- 'pps' => 'application/vnd.ms-powerpoint',
- 'ps' => 'application/postscript',
- 'qt' => 'video/quicktime',
- 'ra' => 'audio/x-realaudio',
- 'ram' => 'audio/x-pn-realaudio',
- 'rar' => 'image/x-rar-compressed',
- 'ras' => 'image/x-cmu-raster',
- 'rgb' => 'image/x-rgb',
- 'rm' => 'audio/x-pn-realaudio',
- 'roff' => 'application/x-troff',
- 'rpm' => 'audio/x-pn-realaudio-plugin',
- 'rtf' => 'text/rtf',
- 'rtx' => 'text/richtext',
- 'sgm' => 'text/sgml',
- 'sgml' => 'text/sgml',
- 'sh' => 'application/x-sh',
- 'shar' => 'application/x-shar',
- 'silo' => 'model/mesh',
- 'sib' => 'application/X-Sibelius-Score',
- 'sit' => 'application/x-stuffit',
- 'skd' => 'application/x-koan',
- 'skm' => 'application/x-koan',
- 'skp' => 'application/x-koan',
- 'skt' => 'application/x-koan',
- 'smi' => 'application/smil',
- 'smil' => 'application/smil',
- 'snd' => 'audio/basic',
- 'so' => 'application/octet-stream',
- 'spl' => 'application/x-futuresplash',
- 'src' => 'application/x-wais-source',
- 'sv4cpio' => 'application/x-sv4cpio',
- 'sv4crc' => 'application/x-sv4crc',
- 'svf' => 'application/vnd.svf',
- 'svg' => 'image/svg+xml',
- //'svgz' => 'image/svg+xml',
- 'swf' => 'application/x-shockwave-flash',
- 'sxc' => 'application/vnd.sun.xml.calc',
- 'sxi' => 'application/vnd.sun.xml.impress',
- 'sxw' => 'application/vnd.sun.xml.writer',
- 't' => 'application/x-troff',
- 'tar' => 'application/x-tar',
- 'tcl' => 'application/x-tcl',
- 'tex' => 'application/x-tex',
- 'texi' => 'application/x-texinfo',
- 'texinfo' => 'application/x-texinfo',
- 'tga' => 'image/x-targa',
- 'tif' => 'image/tif',
- 'tiff' => 'image/tiff',
- 'tr' => 'application/x-troff',
- 'tsv' => 'text/tab-seperated-values',
- 'txt' => 'text/plain',
- 'ustar' => 'application/x-ustar',
- 'vcd' => 'application/x-cdlink',
- 'vrml' => 'model/vrml',
- 'wav' => 'audio/x-wav',
- 'wbmp' => 'image/vnd.wap.wbmp',
- 'wbxml' => 'application/vnd.wap.wbxml',
- 'wml' => 'text/vnd.wap.wml',
- 'wmlc' => 'application/vnd.wap.wmlc',
- 'wmls' => 'text/vnd.wap.wmlscript',
- 'wmlsc' => 'application/vnd.wap.wmlscriptc',
- 'wma' => 'audio/x-ms-wma',
- 'wmv' => 'video/x-ms-wmv',
- 'wrl' => 'model/vrml',
- 'xbm' => 'image/x-xbitmap',
- 'xht' => 'application/xhtml+xml',
- 'xhtml' => 'application/xhtml+xml',
- 'xls' => 'application/vnd.ms-excel',
- 'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
- 'xlsm' => 'application/vnd.ms-excel.sheet.macroEnabled.12',
- 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
- 'xltm' => 'application/vnd.ms-excel.template.macroEnabled.12',
- 'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
- 'xml' => 'text/xml',
- 'xpm' => 'image/x-xpixmap',
- 'xsl' => 'text/xml',
- 'xwd' => 'image/x-windowdump',
- 'xyz' => 'chemical/x-xyz',
- 'zip' => 'application/zip'
- );
- if ($filename === true) {
- return $mime_types;
- }
- //get the extension of the file
- $extension = explode('.', $filename);
- //$filename will be an array if a . was found
- if (is_array($extension)) {
- $extension = strtolower($extension[sizeof($extension) - 1]);
- }
- //file without extension
- else {
- $extension = 'empty';
- }
- //if the extension is found, return the content type
- if (isset($mime_types[$extension])) {
- return $mime_types[$extension];
- }
- //else return octet-stream
- return 'application/octet-stream';
- }
- /**
- * @param string
- * @param string
- * @return true if the user is allowed to see the document, false otherwise
- * @author Sergio A Kessler, first version
- * @author Roan Embrechts, bugfix
- * @todo not only check if a file is visible, but also check if the user is allowed to see the file??
- */
- public static function file_visible_to_user($this_course, $doc_url)
- {
- $is_allowed_to_edit = api_is_allowed_to_edit(null, true);
- if ($is_allowed_to_edit) {
- return true;
- } else {
- $tbl_document = Database::get_course_table(TABLE_DOCUMENT);
- $tbl_item_property = $this_course . 'item_property';
- $doc_url = Database::escape_string($doc_url);
- $query = "SELECT 1 FROM $tbl_document AS docs,$tbl_item_property AS props
- WHERE props.tool = 'document' AND docs.id=props.ref AND props.visibility <> '1' AND docs.path = '$doc_url'";
- $result = Database::query($query);
- return (Database::num_rows($result) == 0);
- }
- }
- /**
- * This function streams a file to the client
- *
- * @param string $full_file_name
- * @param boolean $forced
- * @param string $name
- * @return false if file doesn't exist, true if stream succeeded
- */
- public static function file_send_for_download($full_file_name, $forced = false, $name = '')
- {
- if (!is_file($full_file_name)) {
- return false;
- }
- $filename = ($name == '') ? basename($full_file_name) : replace_dangerous_char($name);
- $len = filesize($full_file_name);
- // Fixing error when file name contains a ","
- $filename = str_replace(',', '', $filename);
- if ($forced) {
- // Force the browser to save the file instead of opening it
- global $_configuration;
- if (isset($_configuration['enable_x_sendfile_headers']) && !empty($_configuration['enable_x_sendfile_headers'])) {
- header("X-Sendfile: $filename");
- }
- header('Content-type: application/octet-stream');
- header('Content-length: ' . $len);
- if (preg_match("/MSIE 5.5/", $_SERVER['HTTP_USER_AGENT'])) {
- header('Content-Disposition: filename= ' . $filename);
- } else {
- header('Content-Disposition: attachment; filename= ' . $filename);
- }
- if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
- header('Pragma: ');
- header('Cache-Control: ');
- header('Cache-Control: public'); // IE cannot download from sessions without a cache
- }
- header('Content-Description: ' . $filename);
- header('Content-Transfer-Encoding: binary');
- $res = fopen($full_file_name, 'r');
- fpassthru($res);
- return true;
- } else {
- //no forced download, just let the browser decide what to do according to the mimetype
- $content_type = self::file_get_mime_type($filename);
- header('Expires: Wed, 01 Jan 1990 00:00:00 GMT');
- header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
- // Commented to avoid double caching declaration when playing with IE and HTTPS
- //header('Cache-Control: no-cache, must-revalidate');
- //header('Pragma: no-cache');
- switch ($content_type) {
- case 'text/html':
- $encoding = @api_detect_encoding_html(file_get_contents($full_file_name));
- if (!empty($encoding)) {
- $content_type .= '; charset=' . $encoding;
- }
- break;
- case 'text/plain':
- $encoding = @api_detect_encoding(strip_tags(file_get_contents($full_file_name)));
- if (!empty($encoding)) {
- $content_type .= '; charset=' . $encoding;
- }
- break;
- case 'application/vnd.dwg':
- case 'application/vnd.dwf':
- header('Content-type: application/octet-stream');
- break;
- }
- header('Content-type: ' . $content_type);
- header('Content-Length: ' . $len);
- $user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
- if (strpos($user_agent, 'msie')) {
- header('Content-Disposition: ; filename= ' . $filename);
- } else {
- header('Content-Disposition: inline; filename= ' . $filename);
- }
- readfile($full_file_name);
- return true;
- }
- }
- /**
- * This function streams a string to the client for download.
- * You have to ensure that the calling script then stops processing (exit();)
- * otherwise it may cause subsequent use of the page to want to download
- * other pages in php rather than interpreting them.
- *
- * @param string The string contents
- * @param boolean Whether "save" mode is forced (or opening directly authorized)
- * @param string The name of the file in the end (including extension)
- * @return false if file doesn't exist, true if stream succeeded
- */
- public static function string_send_for_download($full_string, $forced = false, $name = '')
- {
- $filename = $name;
- $len = strlen($full_string);
- if ($forced) {
- //force the browser to save the file instead of opening it
- header('Content-type: application/octet-stream');
- //header('Content-Type: application/force-download');
- header('Content-length: ' . $len);
- if (preg_match("/MSIE 5.5/", $_SERVER['HTTP_USER_AGENT'])) {
- header('Content-Disposition: filename= ' . $filename);
- } else {
- header('Content-Disposition: attachment; filename= ' . $filename);
- }
- if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
- header('Pragma: ');
- header('Cache-Control: ');
- header('Cache-Control: public'); // IE cannot download from sessions without a cache
- }
- header('Content-Description: ' . $filename);
- header('Content-transfer-encoding: binary');
- //$fp = fopen($full_string, 'r');
- //fpassthru($fp);
- echo $full_string;
- return true;
- //You have to ensure that the calling script then stops processing (exit();)
- //otherwise it may cause subsequent use of the page to want to download
- //other pages in php rather than interpreting them.
- } else {
- //no forced download, just let the browser decide what to do according to the mimetype
- $content_type = self::file_get_mime_type($filename);
- header('Expires: Wed, 01 Jan 1990 00:00:00 GMT');
- header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
- header('Cache-Control: no-cache, must-revalidate');
- header('Pragma: no-cache');
- switch ($content_type) {
- case 'text/html':
- $encoding = @api_detect_encoding_html($full_string);
- if (!empty($encoding)) {
- $content_type .= '; charset=' . $encoding;
- }
- break;
- case 'text/plain':
- $encoding = @api_detect_encoding(strip_tags($full_string));
- if (!empty($encoding)) {
- $content_type .= '; charset=' . $encoding;
- }
- break;
- }
- header('Content-type: ' . $content_type);
- header('Content-Length: ' . $len);
- $user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
- if (strpos($user_agent, 'msie')) {
- header('Content-Disposition: ; filename= ' . $filename);
- } else {
- header('Content-Disposition: inline; filename= ' . $filename);
- }
- echo($full_string);
- //You have to ensure that the calling script then stops processing (exit();)
- //otherwise it may cause subsequent use of the page to want to download
- //other pages in php rather than interpreting them.
- return true;
- }
- }
- /**
- * Session folder filters
- * @param string $path
- * @param int $sessionId
- * @return null|string
- */
- public static function getSessionFolderFilters($path, $sessionId)
- {
- $sessionId = intval($sessionId);
- $condition = null;
- if (!empty($sessionId)) {
- // Chat folder filter
- if ($path == '/chat_files') {
- $condition .= " AND (id_session = '$sessionId') ";
- }
- // share_folder filter
- $condition .= " AND docs.path != '/shared_folder' ";
- }
- return $condition;
- }
- /**
- * Fetches all document data for the given user/group
- *
- * @param array $_course
- * @param string $path
- * @param int $to_group_id
- * @param int $to_user_id
- * @param boolean $can_see_invisible
- * @param boolean $search
- * @return array with all document data
- */
- public static function get_all_document_data(
- $_course,
- $path = '/',
- $to_group_id = 0,
- $to_user_id = null,
- $can_see_invisible = false,
- $search = false
- ) {
- $TABLE_ITEMPROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);
- $TABLE_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- if (!is_null($to_user_id)) {
- $to_field = 'last.to_user_id';
- $to_value = $to_user_id;
- } else {
- $to_field = 'last.to_group_id';
- $to_value = $to_group_id;
- }
- // Escape underscores in the path so they don't act as a wildcard
- $originalPath = $path;
- $path = Database::escape_string(str_replace('_', '\_', $path));
- $to_value = Database::escape_string($to_value);
- $visibility_bit = ' <> 2';
- // The given path will not end with a slash, unless it's the root '/'
- // so no root -> add slash
- $added_slash = ($path == '/') ? '' : '/';
- // Condition for the session
- $current_session_id = api_get_session_id();
- $condition_session = " AND (id_session = '$current_session_id' OR (id_session = '0') )";
- $condition_session .= self::getSessionFolderFilters($originalPath, $current_session_id);
- $sql = "SELECT
- docs.id,
- docs.filetype,
- docs.path,
- docs.title,
- docs.comment,
- docs.size,
- docs.readonly,
- docs.session_id,
- last.id_session item_property_session_id,
- last.lastedit_date,
- last.visibility,
- last.insert_user_id
- FROM $TABLE_ITEMPROPERTY AS last
- INNER JOIN $TABLE_DOCUMENT AS docs
- ON (
- docs.id = last.ref AND last.tool = '".TOOL_DOCUMENT."' AND
- docs.c_id = {$_course['real_id']} AND
- last.c_id = {$_course['real_id']}
- )
- WHERE
- docs.path LIKE '" . $path . $added_slash . "%' AND
- docs.path NOT LIKE '" . $path . $added_slash . "%/%' AND
- $to_field = $to_value AND
- last.visibility
- $visibility_bit
- $condition_session
- ";
- $result = Database::query($sql);
- $doc_list = array();
- $document_data = array();
- $is_allowed_to_edit = api_is_allowed_to_edit(null, true);
- if ($result !== false && Database::num_rows($result) != 0) {
- while ($row = Database::fetch_array($result, 'ASSOC')) {
- if (api_is_coach()) {
- // Looking for course items that are invisible to hide it in the session
- if (in_array($row['id'], array_keys($doc_list))) {
- if ($doc_list[$row['id']]['item_property_session_id'] == 0 &&
- $doc_list[$row['id']]['session_id'] == 0
- ) {
- if ($doc_list[$row['id']]['visibility'] == 0) {
- unset($document_data[$row['id']]);
- continue;
- }
- }
- }
- $doc_list[$row['id']] = $row;
- }
- if (!api_is_coach() && !$is_allowed_to_edit) {
- $doc_list[] = $row;
- }
- if ($row['filetype'] == 'file' && pathinfo($row['path'], PATHINFO_EXTENSION) == 'html') {
- // Templates management
- $table_template = Database::get_main_table(TABLE_MAIN_TEMPLATES);
- $sql = "SELECT id FROM $table_template
- WHERE
- course_code = '" . $_course['code'] . "' AND
- user_id = '".api_get_user_id()."' AND
- ref_doc = '".$row['id']."'";
- $template_result = Database::query($sql);
- $row['is_template'] = (Database::num_rows($template_result) > 0) ? 1 : 0;
- }
- // Just filling $document_data.
- $document_data[$row['id']] = $row;
- }
- // Only for the student we filter the results see BT#1652
- if (!api_is_coach() && !$is_allowed_to_edit) {
- $ids_to_remove = array();
- $my_repeat_ids = $temp = array();
- // Selecting repeated ids
- foreach ($doc_list as $row) {
- if (in_array($row['id'], array_keys($temp))) {
- $my_repeat_ids[] = $row['id'];
- }
- $temp[$row['id']] = $row;
- }
- //@todo use the DocumentManager::is_visible function
- // Checking disponibility in a session
- foreach ($my_repeat_ids as $id) {
- foreach ($doc_list as $row) {
- if ($id == $row['id']) {
- if ($row['visibility'] == 0 && $row['item_property_session_id'] == 0) {
- $delete_repeated[$id] = true;
- }
- if ($row['visibility'] == 0 && $row['item_property_session_id'] != 0) {
- $delete_repeated[$id] = true;
- }
- }
- }
- }
- foreach ($doc_list as $key => $row) {
- if (in_array($row['visibility'], array('0', '2')) && !in_array($row['id'], $my_repeat_ids)) {
- $ids_to_remove[] = $row['id'];
- unset($doc_list[$key]);
- }
- }
- foreach ($document_data as $row) {
- if (in_array($row['id'], $ids_to_remove)) {
- unset($document_data[$row['id']]);
- }
- if (isset($delete_repeated[$row['id']]) && $delete_repeated[$row['id']]) {
- unset($document_data[$row['id']]);
- }
- }
- // Checking parents visibility
- $final_document_data = array();
- foreach ($document_data as $row) {
- $is_visible = DocumentManager::check_visibility_tree(
- $row['id'],
- $_course['code'],
- $current_session_id,
- api_get_user_id(),
- $to_group_id
- );
- if ($is_visible) {
- $final_document_data[$row['id']] = $row;
- }
- }
- } else {
- $final_document_data = $document_data;
- }
- return $final_document_data;
- } else {
- return false;
- }
- }
- /**
- * Gets the paths of all folders in a course
- * can show all folders (except for the deleted ones) or only visible ones
- * @param array $_course
- * @param int $to_group_id
- * @param boolean $can_see_invisible
- *
- * @return array with paths
- */
- public static function get_all_document_folders(
- $_course,
- $to_group_id = '0',
- $can_see_invisible = false
- ) {
- $TABLE_ITEMPROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);
- $TABLE_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- $to_group_id = intval($to_group_id);
- $document_folders = array();
- if ($can_see_invisible) {
- //condition for the session
- $session_id = api_get_session_id();
- $condition_session = api_get_session_condition($session_id);
- $show_users_condition = "";
- if (api_get_setting('show_users_folders') == 'false') {
- $show_users_condition = " AND docs.path NOT LIKE '%shared_folder%'";
- }
- if ($to_group_id <> 0) {
- $sql = "SELECT DISTINCT docs.id, path
- FROM $TABLE_ITEMPROPERTY AS last INNER JOIN $TABLE_DOCUMENT AS docs
- ON (
- docs.id = last.ref AND
- last.tool = '" . TOOL_DOCUMENT . "' AND
- last.c_id = {$_course['real_id']} AND
- docs.c_id = {$_course['real_id']}
- )
- WHERE
- docs.filetype = 'folder' AND
- last.to_group_id = " . $to_group_id . " AND
- docs.path NOT LIKE '%shared_folder%' AND
- last.visibility <> 2 $condition_session ";
- } else {
- $sql = "SELECT DISTINCT docs.id, path
- FROM $TABLE_ITEMPROPERTY AS last INNER JOIN $TABLE_DOCUMENT AS docs
- ON (
- docs.id = last.ref AND
- last.tool = '" . TOOL_DOCUMENT . "' AND
- last.c_id = {$_course['real_id']} AND
- docs.c_id = {$_course['real_id']}
- )
- WHERE
- docs.filetype = 'folder' AND
- last.to_group_id = 0 AND
- last.visibility <> 2
- $show_users_condition $condition_session ";
- }
- $result = Database::query($sql);
- if ($result && Database::num_rows($result) != 0) {
- while ($row = Database::fetch_array($result, 'ASSOC')) {
- if (DocumentManager::is_folder_to_avoid($row['path'])) {
- continue;
- }
- $document_folders[$row['id']] = $row['path'];
- }
- if (!empty($document_folders)) {
- natsort($document_folders);
- }
- return $document_folders;
- } else {
- return false;
- }
- } else {
- // No invisible folders
- // Condition for the session
- $session_id = api_get_session_id();
- $condition_session = api_get_session_condition($session_id);
- //get visible folders
- $sql = "SELECT DISTINCT docs.id, path
- FROM
- $TABLE_ITEMPROPERTY AS last, $TABLE_DOCUMENT AS docs
- WHERE
- docs.id = last.ref AND
- docs.filetype = 'folder' AND
- last.tool = '" . TOOL_DOCUMENT . "' AND
- last.to_group_id = " . $to_group_id . " AND
- last.visibility = 1 $condition_session AND
- last.c_id = {$_course['real_id']} AND
- docs.c_id = {$_course['real_id']} ";
- $result = Database::query($sql);
- $visibleFolders = array();
- while ($row = Database::fetch_array($result, 'ASSOC')) {
- $visibleFolders[$row['id']] = $row['path'];
- }
- //condition for the session
- $session_id = api_get_session_id();
- $condition_session = api_get_session_condition($session_id);
- //get invisible folders
- $sql = "SELECT DISTINCT docs.id, path
- FROM $TABLE_ITEMPROPERTY AS last, $TABLE_DOCUMENT AS docs
- WHERE
- docs.id = last.ref AND
- docs.filetype = 'folder' AND
- last.tool = '" . TOOL_DOCUMENT . "' AND
- last.to_group_id = " . $to_group_id . " AND
- last.visibility = 0 $condition_session AND
- last.c_id = {$_course['real_id']} AND
- docs.c_id = {$_course['real_id']} ";
- $result = Database::query($sql);
- $invisibleFolders = array();
- while ($row = Database::fetch_array($result, 'ASSOC')) {
- //condition for the session
- $session_id = api_get_session_id();
- $condition_session = api_get_session_condition($session_id);
- //get visible folders in the invisible ones -> they are invisible too
- $sql = "SELECT DISTINCT docs.id, path
- FROM $TABLE_ITEMPROPERTY AS last, $TABLE_DOCUMENT AS docs
- WHERE
- docs.id = last.ref AND
- docs.path LIKE '" . Database::escape_string($row['path']) . "/%' AND
- docs.filetype = 'folder' AND
- last.tool = '" . TOOL_DOCUMENT . "' AND
- last.to_group_id = " . $to_group_id . " AND
- last.visibility = 1 $condition_session AND
- last.c_id = {$_course['real_id']} AND
- docs.c_id = {$_course['real_id']} ";
- $folder_in_invisible_result = Database::query($sql);
- while ($folders_in_invisible_folder = Database::fetch_array($folder_in_invisible_result, 'ASSOC')) {
- $invisibleFolders[$folders_in_invisible_folder['id']] = $folders_in_invisible_folder['path'];
- }
- }
- //if both results are arrays -> //calculate the difference between the 2 arrays -> only visible folders are left :)
- if (is_array($visibleFolders) && is_array($invisibleFolders)) {
- $document_folders = array_diff($visibleFolders, $invisibleFolders);
- natsort($document_folders);
- return $document_folders;
- } elseif (is_array($visibleFolders)) {
- natsort($visibleFolders);
- return $visibleFolders;
- } else {
- //no visible folders found
- return false;
- }
- }
- }
- /**
- * This check if a document has the readonly property checked, then see if the user
- * is the owner of this file, if all this is true then return true.
- *
- * @param array $_course
- * @param int $user_id id of the current user
- * @param string $file path stored in the database (if not defined, $documentId must be used)
- * @param int $document_id in case you dont have the file path ,insert the id of the file here and leave $file in blank ''
- * @param bool $to_delete
- * @param int $sessionId
- * @return boolean true/false
- * */
- public static function check_readonly(
- $_course,
- $user_id,
- $file = null,
- $document_id = '',
- $to_delete = false,
- $sessionId = null,
- $documentId = null
- ) {
- if (empty($sessionId)) {
- $sessionId = api_get_session_id();
- } else {
- $sessionId = intval($sessionId);
- }
- if (empty($document_id) || !is_numeric($document_id)) {
- $document_id = self::get_document_id($_course, $file, $sessionId);
- } else {
- $document_id = intval($document_id);
- }
- $TABLE_PROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);
- $TABLE_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- $course_id = $_course['real_id'];
- if ($to_delete) {
- if (self::is_folder($_course, $document_id)) {
- if (!empty($file)) {
- $path = Database::escape_string($file);
- $what_to_check_sql = "SELECT td.id, readonly, tp.insert_user_id
- FROM $TABLE_DOCUMENT td , $TABLE_PROPERTY tp
- WHERE td.c_id = $course_id AND
- tp.c_id = $course_id AND
- td.session_id = $sessionId AND
- tp.ref= td.id AND
- (path='" . $path . "' OR path LIKE BINARY '" . $path . "/%' ) ";
- // Get all id's of documents that are deleted
- $what_to_check_result = Database::query($what_to_check_sql);
- if ($what_to_check_result && Database::num_rows($what_to_check_result) != 0) {
- // file with readonly set to 1 exist?
- $readonly_set = false;
- while ($row = Database::fetch_array($what_to_check_result)) {
- //query to delete from item_property table
- if ($row['readonly'] == 1) {
- if (!($row['insert_user_id'] == $user_id)) {
- $readonly_set = true;
- break;
- }
- }
- }
- if ($readonly_set) {
- return true;
- }
- }
- }
- return false;
- }
- }
- if (!empty($document_id)) {
- $sql = "SELECT a.insert_user_id, b.readonly
- FROM $TABLE_PROPERTY a, $TABLE_DOCUMENT b
- WHERE
- a.c_id = $course_id AND
- b.c_id = $course_id AND
- a.ref = b.id and a.ref = $document_id LIMIT 1";
- $result = Database::query($sql);
- $doc_details = Database ::fetch_array($result, 'ASSOC');
- if ($doc_details['readonly'] == 1) {
- return !($doc_details['insert_user_id'] == $user_id || api_is_platform_admin());
- }
- }
- return false;
- }
- /**
- * This check if a document is a folder or not
- * @param array $_course
- * @param int $document_id of the item
- * @return boolean true/false
- * */
- public static function is_folder($_course, $document_id)
- {
- $TABLE_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- $course_id = $_course['real_id'];
- $document_id = Database::escape_string($document_id);
- $sql = "SELECT filetype FROM $TABLE_DOCUMENT WHERE c_id = $course_id AND id= $document_id";
- $result = Database::fetch_array(Database::query($sql), 'ASSOC');
- return $result['filetype'] == 'folder';
- }
- /**
- * @param int $document_id
- * @param array $course_info
- * @param int $session_id
- * @param bool $remove_content_from_db
- */
- public static function deleteDocumentFromDb(
- $document_id,
- $course_info = array(),
- $session_id = 0,
- $remove_content_from_db = false
- ) {
- $TABLE_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- $TABLE_ITEMPROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY);
- // Deleting from the DB
- $user_id = api_get_user_id();
- $document_id = intval($document_id);
- if (empty($course_info)) {
- $course_info = api_get_course_info();
- }
- if (empty($session_id)) {
- $session_id = api_get_session_id();
- }
- // Soft DB delete
- api_item_property_update(
- $course_info,
- TOOL_DOCUMENT,
- $document_id,
- 'delete',
- $user_id,
- null,
- null,
- null,
- null,
- $session_id
- );
- self::delete_document_from_search_engine($course_info['code'], $document_id);
- self::unset_document_as_template($document_id, $course_info['code'], $user_id);
- //Hard DB delete
- if ($remove_content_from_db) {
- $sql = "DELETE FROM $TABLE_ITEMPROPERTY
- WHERE
- c_id = {$course_info['real_id']} AND
- ref = ".$document_id." AND
- tool='".TOOL_DOCUMENT."'";
- Database::query($sql);
- $sql = "DELETE FROM $TABLE_DOCUMENT
- WHERE c_id = {$course_info['real_id']} AND id = ".$document_id;
- Database::query($sql);
- self::delete_document_metadata($document_id);
- }
- }
- /**
- * @param int $document_id
- */
- public static function delete_document_metadata($document_id)
- {
- //needed to deleted medadata
- require_once api_get_path(SYS_CODE_PATH) . 'metadata/md_funcs.php';
- require_once api_get_path(LIBRARY_PATH) . 'fileManage.lib.php';
- $mdStore = new mdstore(true);
- //delete metadata
- $eid = 'Document' . '.' . $document_id;
- $mdStore->mds_delete($eid);
- $mdStore->mds_delete_offspring($eid);
- }
- /**
- * This deletes a document by changing visibility to 2, renaming it to filename_DELETED_#id
- * Files/folders that are inside a deleted folder get visibility 2
- *
- * @param array $_course
- * @param string $path, path stored in the database
- * @param string $base_work_dir, path to the documents folder (if not defined, $documentId must be used)
- * @param int $sessionId The ID of the session, if any
- * @param int $documentId The document id, if available
- * @return boolean true/false
- * @todo now only files/folders in a folder get visibility 2, we should rename them too.
- * @todo We should be able to get rid of this later when using only documentId (check further usage)
- */
- public static function delete_document(
- $_course,
- $path = null,
- $base_work_dir,
- $sessionId = null,
- $documentId = null,
- $groupId = null
- ) {
- $TABLE_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- if (empty($groupId)) {
- $groupId = api_get_group_id();
- } else {
- $groupId = intval($groupId);
- }
- if (empty($sessionId)) {
- $sessionId = api_get_session_id();
- } else {
- $sessionId = intval($sessionId);
- }
- $course_id = $_course['real_id'];
- if (empty($course_id)) {
- return false;
- }
- if (empty($base_work_dir)) {
- return false;
- }
- if (empty($documentId)) {
- $documentId = self::get_document_id($_course, $path, $sessionId);
- $docInfo = self::get_document_data_by_id(
- $documentId,
- $_course['code'],
- false,
- $sessionId
- );
- $path = $docInfo['path'];
- } else {
- $docInfo = self::get_document_data_by_id(
- $documentId,
- $_course['code'],
- false,
- $sessionId
- );
- if (empty($docInfo)) {
- return false;
- }
- $path = $docInfo['path'];
- }
- $documentId = intval($documentId);
- if (empty($path) || empty($docInfo) || empty($documentId)) {
- return false;
- }
- $itemInfo = api_get_item_property_info($_course['real_id'], TOOL_DOCUMENT, $documentId, 0);
- if (empty($itemInfo)) {
- return false;
- }
- // File was already deleted.
- if ($itemInfo['lastedit_type'] == 'DocumentDeleted' ||
- $itemInfo['lastedit_type'] == 'delete' ||
- $itemInfo['visibility'] == 2
- ) {
- return false;
- }
- // Filtering by group.
- if ($itemInfo['to_group_id'] != $groupId) {
- return false;
- }
- $document_exists_in_disk = file_exists($base_work_dir.$path);
- $new_path = $path.'_DELETED_'.$documentId;
- $file_deleted_from_db = false;
- $file_deleted_from_disk = false;
- $file_renamed_from_disk = false;
- if ($documentId) {
- // Deleting doc from the DB.
- self::deleteDocumentFromDb($documentId, $_course, $sessionId);
- // Checking
- // $file_exists_in_db = self::get_document_data_by_id($documentId, $_course['code']);
- $file_deleted_from_db = true;
- }
- // Looking for children.
- if ($docInfo['filetype'] == 'folder') {
- $cleanPath = Database::escape_string($path);
- // Deleted files inside this folder.
- $sql = "SELECT id FROM $TABLE_DOCUMENT
- WHERE
- c_id = $course_id AND
- session_id = $sessionId AND
- path LIKE BINARY '".$cleanPath."/%'";
- // Get all id's of documents that are deleted.
- $result = Database::query($sql);
- if ($result && Database::num_rows($result) != 0) {
- // Recursive delete.
- while ($row = Database::fetch_array($result)) {
- self::delete_document(
- $_course,
- null,
- $base_work_dir,
- $sessionId,
- $row['id']
- );
- }
- }
- }
- if ($document_exists_in_disk) {
- if (api_get_setting('permanently_remove_deleted_files') == 'true') {
- // Delete documents, do it like this so metadata gets deleted too
- my_delete($base_work_dir.$path);
- // Hard delete.
- self::deleteDocumentFromDb($documentId, $_course, $sessionId, true);
- $file_deleted_from_disk = true;
- } else {
- // Set visibility to 2 and rename file/folder to xxx_DELETED_#id (soft delete)
- if (is_file($base_work_dir.$path) || is_dir($base_work_dir.$path)) {
- if (rename($base_work_dir.$path, $base_work_dir.$new_path)) {
- $new_path = Database::escape_string($new_path);
- $sql = "UPDATE $TABLE_DOCUMENT
- SET path = '".$new_path."'
- WHERE
- c_id = $course_id AND
- session_id = $sessionId AND
- id = ".$documentId;
- Database::query($sql);
- // Soft delete.
- self::deleteDocumentFromDb($documentId, $_course, $sessionId);
- // Change path of sub folders and documents in database.
- $old_item_path = $docInfo['path'];
- $new_item_path = $new_path.substr($old_item_path, strlen($path));
- $new_item_path = Database::escape_string($new_item_path);
- $sql = "UPDATE $TABLE_DOCUMENT
- SET path = '".$new_item_path."'
- WHERE
- c_id = $course_id AND
- session_id = $sessionId AND
- id = ".$documentId;
- Database::query($sql);
- $file_renamed_from_disk = true;
- } else {
- // Couldn't rename - file permissions problem?
- error_log(
- __FILE__.' '.__LINE__.': Error renaming '.$base_work_dir.$path.' to '.$base_work_dir.$new_path.'. This is probably due to file permissions',
- 0
- );
- }
- }
- }
- }
- // Checking inconsistency
- //error_log('Doc status: (1 del db :'.($file_deleted_from_db?'yes':'no').') - (2 del disk: '.($file_deleted_from_disk?'yes':'no').') - (3 ren disk: '.($file_renamed_from_disk?'yes':'no').')');
- if ($file_deleted_from_db && $file_deleted_from_disk ||
- $file_deleted_from_db && $file_renamed_from_disk
- ) {
- return true;
- } else {
- //Something went wrong
- //The file or directory isn't there anymore (on the filesystem)
- // This means it has been removed externally. To prevent a
- // blocking error from happening, we drop the related items from the
- // item_property and the document table.
- error_log(
- __FILE__.' '.__LINE__.': System inconsistency detected. The file or directory '.$base_work_dir.$path.' seems to have been removed from the filesystem independently from the web platform. To restore consistency, the elements using the same path will be removed from the database',
- 0
- );
- return false;
- }
- }
- /**
- * Removes documents from search engine database
- *
- * @param string $course_id Course code
- * @param int $document_id Document id to delete
- */
- public static function delete_document_from_search_engine($course_id, $document_id)
- {
- // remove from search engine if enabled
- if (api_get_setting('search_enabled') == 'true') {
- $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
- $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
- $sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_DOCUMENT, $document_id);
- $res = Database::query($sql);
- if (Database::num_rows($res) > 0) {
- $row2 = Database::fetch_array($res);
- require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
- $di = new ChamiloIndexer();
- $di->remove_document((int) $row2['search_did']);
- }
- $sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
- $sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_DOCUMENT, $document_id);
- Database::query($sql);
- // remove terms from db
- require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
- delete_all_values_for_item($course_id, TOOL_DOCUMENT, $document_id);
- }
- }
- /**
- * Gets the id of a document with a given path
- *
- * @param array $courseInfo
- * @param string $path
- * @param int $sessionId
- * @return int id of document / false if no doc found
- */
- public static function get_document_id($courseInfo, $path, $sessionId = null)
- {
- $TABLE_DOCUMENT = Database :: get_course_table(TABLE_DOCUMENT);
- $course_id = $courseInfo['real_id'];
- if (!isset($sessionId)) {
- $sessionId = api_get_session_id();
- } else {
- $sessionId = intval($sessionId);
- }
- $path = Database::escape_string($path);
- if (!empty($course_id) && !empty($path)) {
- $sql = "SELECT id FROM $TABLE_DOCUMENT
- WHERE
- c_id = $course_id AND
- path LIKE BINARY '$path' AND
- session_id = $sessionId
- LIMIT 1";
- $result = Database::query($sql);
- if ($result && Database::num_rows($result)) {
- $row = Database::fetch_array($result);
- return intval($row[0]);
- }
- }
- return false;
- }
- /**
- * Gets the document data with a given id
- *
- * @param int $id Document ID (id field in c_document table)
- * @param string $course_code course code (c_id field in document table)
- * @param bool $load_parents load parents?
- * @param int $session_id The session ID, 0 if requires context *out of* session, and null to use global context
- * @return array document content
- */
- public static function get_document_data_by_id($id, $course_code, $load_parents = false, $session_id = null)
- {
- $course_info = api_get_course_info($course_code);
- $course_id = $course_info['real_id'];
- if (empty($course_info)) {
- return false;
- }
- if (isset($session_id)) {
- $session_id = intval($session_id);
- } else {
- $session_id = api_get_session_id();
- }
- $www = api_get_path(WEB_COURSE_PATH).$course_info['path'].'/document';
- $TABLE_DOCUMENT = Database :: get_course_table(TABLE_DOCUMENT);
- $id = intval($id);
- $sql = "SELECT * FROM $TABLE_DOCUMENT
- WHERE c_id = $course_id AND session_id = $session_id AND id = $id";
- $result = Database::query($sql);
- if ($result && Database::num_rows($result) == 1) {
- $row = Database::fetch_array($result, 'ASSOC');
- //@todo need to clarify the name of the URLs not nice right now
- $url_path = urlencode($row['path']);
- $path = str_replace('%2F', '/', $url_path);
- $row['url'] = api_get_path(WEB_CODE_PATH) . 'document/showinframes.php?cidReq=' . $course_code . '&id=' . $id;
- $row['document_url'] = api_get_path(WEB_CODE_PATH) . 'document/document.php?cidReq=' . $course_code . '&id=' . $id;
- $row['absolute_path'] = api_get_path(SYS_COURSE_PATH) . $course_info['path'] . '/document' . $row['path'];
- $row['absolute_path_from_document'] = '/document' . $row['path'];
- $pathinfo = pathinfo($row['path']);
- $row['absolute_parent_path'] = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document'.$pathinfo['dirname'] . '/';
- $row['direct_url'] = $www . $path;
- if (dirname($row['path']) == '.') {
- $row['parent_id'] = '0';
- } else {
- $row['parent_id'] = self::get_document_id($course_info, dirname($row['path']), $session_id);
- }
- $parents = array();
- //Use to generate parents (needed for the breadcrumb)
- //@todo sorry but this for is here because there's not a parent_id in the document table so we parsed the path!!
- if ($load_parents) {
- $dir_array = explode('/', $row['path']);
- $dir_array = array_filter($dir_array);
- $array_len = count($dir_array) + 1;
- $real_dir = '';
- for ($i = 1; $i < $array_len; $i++) {
- //$sub_visibility = true;
- $real_dir .= '/' . $dir_array[$i];
- $parent_id = self::get_document_id($course_info, $real_dir);
- if ($session_id != 0 && empty($parent_id)) {
- $parent_id = self::get_document_id($course_info, $real_dir, 0);
- }
- if (!empty($parent_id)) {
- $sub_document_data = self::get_document_data_by_id($parent_id, $course_code, false, $session_id);
- if ($session_id != 0 and !$sub_document_data) {
- $sub_document_data = self::get_document_data_by_id($parent_id, $course_code, false, 0);
- }
- //@todo add visibility here
- $parents[] = $sub_document_data;
- }
- }
- }
- $row['parents'] = $parents;
- return $row;
- }
- return false;
- }
- /**
- * Allow to set a specific document as a new template for FCKEditor for a particular user in a particular course
- *
- * @param string $title
- * @param string $description
- * @param int $document_id_for_template the document id
- * @param string $course_code
- * @param int $user_id
- */
- public static function set_document_as_template($title, $description, $document_id_for_template, $course_code, $user_id, $image)
- {
- // Database table definition
- $table_template = Database::get_main_table(TABLE_MAIN_TEMPLATES);
- // creating the sql statement
- $sql = "INSERT INTO $table_template
- (title, description, course_code, user_id, ref_doc, image)
- VALUES (
- '" . Database::escape_string($title) . "',
- '" . Database::escape_string($description) . "',
- '" . Database::escape_string($course_code) . "',
- '" . Database::escape_string($user_id) . "',
- '" . Database::escape_string($document_id_for_template) . "',
- '" . Database::escape_string($image) . "')";
- Database::query($sql);
- return true;
- }
- /**
- * Unset a document as template
- *
- * @param int $document_id
- * @param string $couse_code
- * @param int $user_id
- */
- public static function unset_document_as_template($document_id, $course_code, $user_id)
- {
- $table_template = Database::get_main_table(TABLE_MAIN_TEMPLATES);
- $course_code = Database::escape_string($course_code);
- $user_id = Database::escape_string($user_id);
- $document_id = Database::escape_string($document_id);
- $sql = 'SELECT id FROM ' . $table_template . ' WHERE course_code="' . $course_code . '" AND user_id="' . $user_id . '" AND ref_doc="' . $document_id . '"';
- $result = Database::query($sql);
- $template_id = Database::result($result, 0, 0);
- include_once(api_get_path(LIBRARY_PATH) . 'fileManage.lib.php');
- my_delete(api_get_path(SYS_CODE_PATH) . 'upload/template_thumbnails/' . $template_id . '.jpg');
- $sql = 'DELETE FROM ' . $table_template . ' WHERE course_code="' . $course_code . '" AND user_id="' . $user_id . '" AND ref_doc="' . $document_id . '"';
- Database::query($sql);
- }
- /**
- * Return true if the documentpath have visibility=1 as item_property (you should use the is_visible_by_id)
- *
- * @param string $document_path the relative complete path of the document
- * @param array $course the _course array info of the document's course
- * @param int
- * @param string
- */
- public static function is_visible($doc_path, $course, $session_id = 0, $file_type = 'file')
- {
- $docTable = Database::get_course_table(TABLE_DOCUMENT);
- $propTable = Database::get_course_table(TABLE_ITEM_PROPERTY);
- $course_id = $course['real_id'];
- //note the extra / at the end of doc_path to match every path in the document table that is part of the document path
- $doc_path = Database::escape_string($doc_path);
- $session_id = intval($session_id);
- $condition = "AND id_session IN ('$session_id', '0') ";
- // The " d.filetype='file' " let the user see a file even if the folder is hidden see #2198
- /*
- When using hotpotatoes files, a new html files are generated
- in the hotpotatoes folder to display the test.
- The genuine html file is copied to math4.htm(user_id).t.html
- Images files are not copied, and keep same name.
- To check the html file visibility, we don't have to check file math4.htm(user_id).t.html but file math4.htm
- In this case, we have to remove (user_id).t.html to check the visibility of the file
- For images, we just check the path of the image file.
- Exemple of hotpotatoes folder :
- A.jpg
- maths4-consigne.jpg
- maths4.htm
- maths4.htm1.t.html
- maths4.htm52.t.html
- maths4.htm654.t.html
- omega.jpg
- theta.jpg
- */
- if (strpos($doc_path, 'HotPotatoes_files') && preg_match("/\.t\.html$/", $doc_path)) {
- $doc_path = substr($doc_path, 0, strlen($doc_path) - 7 - strlen(api_get_user_id()));
- }
- if (!in_array($file_type, array('file', 'folder'))) {
- $file_type = 'file';
- }
- $sql = "SELECT visibility FROM $docTable d INNER JOIN $propTable ip
- ON (d.id = ip.ref AND d.c_id = $course_id AND ip.c_id = $course_id)
- WHERE ip.tool = '" . TOOL_DOCUMENT . "' $condition AND
- filetype = '$file_type' AND locate(concat(path,'/'),'" . $doc_path . "/')=1";
- $result = Database::query($sql);
- $is_visible = false;
- if (Database::num_rows($result) > 0) {
- $row = Database::fetch_array($result, 'ASSOC');
- if ($row['visibility'] == 1) {
- $is_visible = $_SESSION['is_allowed_in_course'] || api_is_platform_admin();
- }
- }
- /* improved protection of documents viewable directly through the url:
- incorporates the same protections of the course at the url of
- documents:
- access allowed for the whole world Open, access allowed for
- users registered on the platform Private access, document accessible
- only to course members (see the Users list), Completely closed;
- the document is only accessible to the course admin and
- teaching assistants.*/
- //return $_SESSION ['is_allowed_in_course'] || api_is_platform_admin();
- return $is_visible;
- }
- /**
- * Return true if user can see a file
- *
- * @param int document id
- * @param array course info
- * @param int
- * @param int
- * @param bool
- * @return bool
- */
- public static function is_visible_by_id($doc_id, $course_info, $session_id, $user_id, $admins_can_see_everything = true)
- {
- $is_visible = false;
- $user_in_course = false;
- //1. Checking the course array
- if (empty($course_info)) {
- $course_info = api_get_course_info();
- if (empty($course_info)) {
- return false;
- }
- }
- $doc_id = intval($doc_id);
- $session_id = intval($session_id);
- //2. Course and Session visibility are handle in local.inc.php/global.inc.php
- //3. Checking if user exist in course/session
- if ($session_id == 0) {
- if (CourseManager::is_user_subscribed_in_course($user_id, $course_info['code']) || api_is_platform_admin()) {
- $user_in_course = true;
- }
- // Check if course is open then we can consider that the student is registered to the course
- if (isset($course_info) && in_array($course_info['visibility'], array(COURSE_VISIBILITY_OPEN_PLATFORM, COURSE_VISIBILITY_OPEN_WORLD))) {
- $user_in_course = true;
- }
- } else {
- $user_status = SessionManager::get_user_status_in_course_session($user_id, $course_info['code'], $session_id);
- if (in_array($user_status, array('0', '2', '6'))) {
- //is true if is an student, course session teacher or coach
- $user_in_course = true;
- }
- }
- //4. Checking document visibility (i'm repeating the code in order to be more clear when reading ) - jm
- if ($user_in_course) {
- //4.1 Checking document visibility for a Course
- if ($session_id == 0) {
- $item_info = api_get_item_property_info($course_info['real_id'], 'document', $doc_id, 0);
- if (isset($item_info['visibility'])) {
- // True for admins if document exists
- if ($admins_can_see_everything && api_is_platform_admin()) {
- return true;
- }
- if ($item_info['visibility'] == 1) {
- return true;
- }
- }
- } else {
- //4.2 Checking document visibility for a Course in a Session
- $item_info = api_get_item_property_info($course_info['real_id'], 'document', $doc_id, 0);
- $item_info_in_session = api_get_item_property_info($course_info['real_id'], 'document', $doc_id, $session_id);
- // True for admins if document exists
- if (isset($item_info['visibility'])) {
- if ($admins_can_see_everything && api_is_platform_admin())
- return true;
- }
- if (isset($item_info_in_session['visibility'])) {
- if ($item_info_in_session['visibility'] == 1) {
- return true;
- }
- } else {
- if ($item_info['visibility'] == 1) {
- return true;
- }
- }
- }
- } elseif ($admins_can_see_everything && api_is_platform_admin()) {
- return true;
- }
- return false;
- }
- /**
- * Allow attach a certificate to a course
- * @param string The course id
- * @param int The document id
- * @return void()
- */
- function attach_gradebook_certificate($course_id, $document_id)
- {
- $tbl_category = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
- $session_id = api_get_session_id();
- if ($session_id == 0 || is_null($session_id)) {
- $sql_session = 'AND (session_id=' . Database::escape_string($session_id) . ' OR isnull(session_id)) ';
- } elseif ($session_id > 0) {
- $sql_session = 'AND session_id=' . Database::escape_string($session_id);
- } else {
- $sql_session = '';
- }
- $sql = 'UPDATE ' . $tbl_category . ' SET document_id="' . Database::escape_string($document_id) . '"
- WHERE course_code="' . Database::escape_string($course_id) . '" ' . $sql_session;
- Database::query($sql);
- }
- /**
- * get the document id of default certificate
- * @param string The course id
- * @return int The default certificate id
- */
- static function get_default_certificate_id($course_id)
- {
- $tbl_category = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
- $session_id = api_get_session_id();
- if ($session_id == 0 || is_null($session_id)) {
- $sql_session = 'AND (session_id=' . Database::escape_string($session_id) . ' OR isnull(session_id)) ';
- } elseif ($session_id > 0) {
- $sql_session = 'AND session_id=' . Database::escape_string($session_id);
- } else {
- $sql_session = '';
- }
- $sql = 'SELECT document_id FROM ' . $tbl_category . ' WHERE course_code="' . Database::escape_string($course_id) . '" ' . $sql_session;
- $rs = Database::query($sql);
- $num = Database::num_rows($rs);
- if ($num == 0) {
- return null;
- }
- $row = Database::fetch_array($rs);
- return $row['document_id'];
- }
- /**
- * allow replace user info in file html
- * @param string The course code
- * @return string The html content of the certificate
- */
- static function replace_user_info_into_html($user_id, $course_code, $is_preview = false)
- {
- $user_id = intval($user_id);
- $course_info = api_get_course_info($course_code);
- $tbl_document = Database::get_course_table(TABLE_DOCUMENT);
- $course_id = $course_info['real_id'];
- $document_id = self::get_default_certificate_id($course_code);
- if ($document_id) {
- $sql = "SELECT path FROM $tbl_document WHERE c_id = $course_id AND id = $document_id";
- $rs = Database::query($sql);
- $new_content = '';
- $all_user_info = array();
- if (Database::num_rows($rs)) {
- $row = Database::fetch_array($rs);
- $filepath = api_get_path(SYS_COURSE_PATH) . $course_info['path'] . '/document' . $row['path'];
- if (is_file($filepath)) {
- $my_content_html = file_get_contents($filepath);
- }
- $all_user_info = self::get_all_info_to_certificate($user_id, $course_code, $is_preview);
- $info_to_be_replaced_in_content_html = $all_user_info[0];
- $info_to_replace_in_content_html = $all_user_info[1];
- $new_content = str_replace($info_to_be_replaced_in_content_html, $info_to_replace_in_content_html, $my_content_html);
- }
- return array('content' => $new_content, 'variables' => $all_user_info);
- }
- return array();
- }
- /**
- * return all content to replace and all content to be replace
- */
- static function get_all_info_to_certificate($user_id, $course_id, $is_preview = false)
- {
- $info_list = array();
- $user_id = intval($user_id);
- $course_info = api_get_course_info($course_id);
- //info portal
- $organization_name = api_get_setting('Institution');
- $portal_name = api_get_setting('siteName');
- //Extra user data information
- $extra_user_info_data = UserManager::get_extra_user_data($user_id, false, false, false, true);
- //Student information
- $user_info = api_get_user_info($user_id);
- $first_name = $user_info['firstname'];
- $last_name = $user_info['lastname'];
- $official_code = $user_info['official_code'];
- //Teacher information
- $info_teacher_id = UserManager::get_user_id_of_course_admin_or_session_admin($course_id);
- $teacher_info = api_get_user_info($info_teacher_id);
- $teacher_first_name = $teacher_info['firstname'];
- $teacher_last_name = $teacher_info['lastname'];
- // info gradebook certificate
- $info_grade_certificate = UserManager::get_info_gradebook_certificate($course_id, $user_id);
- $date_certificate = $info_grade_certificate['created_at'];
- $date_long_certificate = '';
- $date_no_time = api_convert_and_format_date(api_get_utc_datetime(), DATE_FORMAT_LONG_NO_DAY);
- if (!empty($date_certificate)) {
- $date_long_certificate = api_convert_and_format_date($date_certificate);
- $date_no_time = api_convert_and_format_date($date_certificate, DATE_FORMAT_LONG_NO_DAY);
- }
- if ($is_preview) {
- $date_long_certificate = api_convert_and_format_date(api_get_utc_datetime());
- $date_no_time = api_convert_and_format_date(api_get_utc_datetime(), DATE_FORMAT_LONG_NO_DAY);
- }
- $url = api_get_path(WEB_PATH) . 'certificates/index.php?id=' . $info_grade_certificate['id'];
- //replace content
- $info_to_replace_in_content_html = array($first_name,
- $last_name,
- $organization_name,
- $portal_name,
- $teacher_first_name,
- $teacher_last_name,
- $official_code,
- $date_long_certificate,
- $date_no_time,
- $course_id,
- $course_info['name'],
- $info_grade_certificate['grade'],
- $url,
- '<a href="' . $url . '" target="_blank">' . get_lang('CertificateOnlineLink') . '</a>',
- '((certificate_barcode))',
- );
- $info_to_be_replaced_in_content_html = array('((user_firstname))',
- '((user_lastname))',
- '((gradebook_institution))',
- '((gradebook_sitename))',
- '((teacher_firstname))',
- '((teacher_lastname))',
- '((official_code))',
- '((date_certificate))',
- '((date_certificate_no_time))',
- '((course_code))',
- '((course_title))',
- '((gradebook_grade))',
- '((certificate_link))',
- '((certificate_link_html))',
- '((certificate_barcode))',
- );
- if (!empty($extra_user_info_data)) {
- foreach ($extra_user_info_data as $key_extra => $value_extra) {
- $info_to_be_replaced_in_content_html[] = '((' . strtolower($key_extra) . '))';
- $info_to_replace_in_content_html[] = $value_extra;
- }
- }
- $info_list[] = $info_to_be_replaced_in_content_html;
- $info_list[] = $info_to_replace_in_content_html;
- return $info_list;
- }
- /**
- * Remove default certificate
- * @param string The course code
- * @param int The document id of the default certificate
- * @return void()
- */
- public static function remove_attach_certificate($course_id, $default_certificate_id)
- {
- if (empty($default_certificate_id)) {
- return false;
- }
- $default_certificate = self::get_default_certificate_id($course_id);
- if ((int) $default_certificate == (int) $default_certificate_id) {
- $tbl_category = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
- $session_id = api_get_session_id();
- if ($session_id == 0 || is_null($session_id)) {
- $sql_session = 'AND (session_id=' . Database::escape_string($session_id) . ' OR isnull(session_id)) ';
- } elseif ($session_id > 0) {
- $sql_session = 'AND session_id=' . Database::escape_string($session_id);
- } else {
- $sql_session = '';
- }
- $sql = 'UPDATE ' . $tbl_category . ' SET document_id=null
- WHERE
- course_code = "' . Database::escape_string($course_id) . '" AND
- document_id="' . $default_certificate_id . '" ' . $sql_session;
- Database::query($sql);
- }
- }
- /**
- * Create directory certificate
- * @param string The course code
- * @return void()
- */
- public static function create_directory_certificate_in_course($course_id)
- {
- $course_info = api_get_course_info($course_id);
- if (!empty($course_info)) {
- $to_group_id = 0;
- $to_user_id = null;
- $course_dir = $course_info['path'] . "/document/";
- $sys_course_path = api_get_path(SYS_COURSE_PATH);
- $base_work_dir = $sys_course_path . $course_dir;
- $base_work_dir_test = $base_work_dir . 'certificates';
- $dir_name = '/certificates';
- $post_dir_name = get_lang('CertificatesFiles');
- $visibility_command = 'invisible';
- if (!is_dir($base_work_dir_test)) {
- $created_dir = create_unexisting_directory(
- $course_info,
- api_get_user_id(),
- api_get_session_id(),
- $to_group_id,
- $to_user_id,
- $base_work_dir,
- $dir_name,
- $post_dir_name
- );
- $update_id = self::get_document_id_of_directory_certificate();
- api_item_property_update($course_info, TOOL_DOCUMENT, $update_id, $visibility_command, api_get_user_id());
- }
- }
- }
- /**
- * Get the document id of the directory certificate
- * @param string The course id
- * @return int The document id of the directory certificate
- */
- public static function get_document_id_of_directory_certificate()
- {
- $tbl_document = Database::get_course_table(TABLE_DOCUMENT);
- $course_id = api_get_course_int_id();
- $sql = "SELECT id FROM $tbl_document WHERE c_id = $course_id AND path='/certificates' ";
- $rs = Database::query($sql);
- $row = Database::fetch_array($rs);
- return $row['id'];
- }
- /**
- * Check if a directory given is for certificate
- * @param string path of directory
- * @return bool true if is a certificate or false otherwise
- */
- public static function is_certificate_mode($dir)
- {
- // I'm in the certification module?
- $is_certificate_mode = false;
- $is_certificate_array = explode('/', $dir);
- array_shift($is_certificate_array);
- if (isset($is_certificate_array[0]) && $is_certificate_array[0] == 'certificates') {
- $is_certificate_mode = true;
- }
- return $is_certificate_mode;
- }
- /**
- * Gets the list of included resources as a list of absolute or relative paths from a html file or string html
- * This allows for a better SCORM export or replace urls inside content html from copy course
- * The list will generally include pictures, flash objects, java applets, or any other
- * stuff included in the source of the current item. The current item is expected
- * to be an HTML file or string html. If it is not, then the function will return and empty list.
- * @param string source html (content or path)
- * @param bool is file or string html
- * @param string type (one of the app tools) - optional (otherwise takes the current item's type)
- * @param int level of recursivity we're in
- * @return array List of file paths. An additional field containing 'local' or 'remote' helps determine
- * if the file should be copied into the zip or just linked
- */
- public static function get_resources_from_source_html($source_html, $is_file = false, $type = null, $recursivity = 1)
- {
- $max = 5;
- $attributes = array();
- $wanted_attributes = array('src', 'url', '@import', 'href', 'value', 'flashvars');
- $explode_attributes = array('flashvars' => 'file');
- $abs_path = '';
- if ($recursivity > $max) {
- return array();
- }
- if (!isset($type)) {
- $type = TOOL_DOCUMENT;
- }
- if (!$is_file) {
- $attributes = self::parse_HTML_attributes($source_html, $wanted_attributes, $explode_attributes);
- } else {
- if (is_file($source_html)) {
- $abs_path = $source_html;
- //for now, read the whole file in one go (that's gonna be a problem when the file is too big)
- $info = pathinfo($abs_path);
- $ext = $info['extension'];
- switch (strtolower($ext)) {
- case 'html' :
- case 'htm' :
- case 'shtml':
- case 'css' :
- $file_content = file_get_contents($abs_path);
- //get an array of attributes from the HTML source
- $attributes = self::parse_HTML_attributes($file_content, $wanted_attributes, $explode_attributes);
- break;
- default :
- break;
- }
- } else {
- return false;
- }
- }
- $files_list = array();
- switch ($type) {
- case TOOL_DOCUMENT :
- case TOOL_QUIZ:
- case 'sco':
- foreach ($wanted_attributes as $attr) {
- if (isset($attributes[$attr])) {
- //find which kind of path these are (local or remote)
- $sources = $attributes[$attr];
- foreach ($sources as $source) {
- //skip what is obviously not a resource
- if (strpos($source, '+this.'))
- continue; //javascript code - will still work unaltered
- if (strpos($source, '.') === false)
- continue; //no dot, should not be an external file anyway
- if (strpos($source, 'mailto:'))
- continue; //mailto link
- if (strpos($source, ';') && !strpos($source, '&'))
- continue; //avoid code - that should help
- if ($attr == 'value') {
- if (strpos($source, 'mp3file')) {
- $files_list[] = array(substr($source, 0, strpos($source, '.swf') + 4), 'local', 'abs');
- $mp3file = substr($source, strpos($source, 'mp3file=') + 8);
- if (substr($mp3file, 0, 1) == '/') {
- $files_list[] = array($mp3file, 'local', 'abs');
- } else {
- $files_list[] = array($mp3file, 'local', 'rel');
- }
- } elseif (strpos($source, 'flv=') === 0) {
- $source = substr($source, 4);
- if (strpos($source, '&') > 0) {
- $source = substr($source, 0, strpos($source, '&'));
- }
- if (strpos($source, '://') > 0) {
- if (strpos($source, api_get_path(WEB_PATH)) !== false) {
- //we found the current portal url
- $files_list[] = array($source, 'local', 'url');
- } else {
- //we didn't find any trace of current portal
- $files_list[] = array($source, 'remote', 'url');
- }
- } else {
- $files_list[] = array($source, 'local', 'abs');
- }
- /* skipping anything else to avoid two entries
- (while the others can have sub-files in their url, flv's can't)*/
- continue;
- }
- }
- if (strpos($source, '://') > 0) {
- //cut at '?' in a URL with params
- if (strpos($source, '?') > 0) {
- $second_part = substr($source, strpos($source, '?'));
- if (strpos($second_part, '://') > 0) {
- //if the second part of the url contains a url too, treat the second one before cutting
- $pos1 = strpos($second_part, '=');
- $pos2 = strpos($second_part, '&');
- $second_part = substr($second_part, $pos1 + 1, $pos2 - ($pos1 + 1));
- if (strpos($second_part, api_get_path(WEB_PATH)) !== false) {
- //we found the current portal url
- $files_list[] = array($second_part, 'local', 'url');
- $in_files_list[] = self::get_resources_from_source_html($second_part, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } else {
- //we didn't find any trace of current portal
- $files_list[] = array($second_part, 'remote', 'url');
- }
- } elseif (strpos($second_part, '=') > 0) {
- if (substr($second_part, 0, 1) === '/') {
- //link starts with a /, making it absolute (relative to DocumentRoot)
- $files_list[] = array($second_part, 'local', 'abs');
- $in_files_list[] = self::get_resources_from_source_html($second_part, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } elseif (strstr($second_part, '..') === 0) {
- //link is relative but going back in the hierarchy
- $files_list[] = array($second_part, 'local', 'rel');
- //$dir = api_get_path(SYS_CODE_PATH);//dirname($abs_path);
- //$new_abs_path = realpath($dir.'/'.$second_part);
- $dir = '';
- if (!empty($abs_path)) {
- $dir = dirname($abs_path) . '/';
- }
- $new_abs_path = realpath($dir . $second_part);
- $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } else {
- //no starting '/', making it relative to current document's path
- if (substr($second_part, 0, 2) == './') {
- $second_part = substr($second_part, 2);
- }
- $files_list[] = array($second_part, 'local', 'rel');
- $dir = '';
- if (!empty($abs_path)) {
- $dir = dirname($abs_path) . '/';
- }
- $new_abs_path = realpath($dir . $second_part);
- $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- }
- }
- //leave that second part behind now
- $source = substr($source, 0, strpos($source, '?'));
- if (strpos($source, '://') > 0) {
- if (strpos($source, api_get_path(WEB_PATH)) !== false) {
- //we found the current portal url
- $files_list[] = array($source, 'local', 'url');
- $in_files_list[] = self::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } else {
- //we didn't find any trace of current portal
- $files_list[] = array($source, 'remote', 'url');
- }
- } else {
- //no protocol found, make link local
- if (substr($source, 0, 1) === '/') {
- //link starts with a /, making it absolute (relative to DocumentRoot)
- $files_list[] = array($source, 'local', 'abs');
- $in_files_list[] = self::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } elseif (strstr($source, '..') === 0) { //link is relative but going back in the hierarchy
- $files_list[] = array($source, 'local', 'rel');
- $dir = '';
- if (!empty($abs_path)) {
- $dir = dirname($abs_path) . '/';
- }
- $new_abs_path = realpath($dir . $source);
- $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } else {
- //no starting '/', making it relative to current document's path
- if (substr($source, 0, 2) == './') {
- $source = substr($source, 2);
- }
- $files_list[] = array($source, 'local', 'rel');
- $dir = '';
- if (!empty($abs_path)) {
- $dir = dirname($abs_path) . '/';
- }
- $new_abs_path = realpath($dir . $source);
- $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- }
- }
- }
- //found some protocol there
- if (strpos($source, api_get_path(WEB_PATH)) !== false) {
- //we found the current portal url
- $files_list[] = array($source, 'local', 'url');
- $in_files_list[] = self::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } else {
- //we didn't find any trace of current portal
- $files_list[] = array($source, 'remote', 'url');
- }
- } else {
- //no protocol found, make link local
- if (substr($source, 0, 1) === '/') {
- //link starts with a /, making it absolute (relative to DocumentRoot)
- $files_list[] = array($source, 'local', 'abs');
- $in_files_list[] = self::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } elseif (strpos($source, '..') === 0) {
- //link is relative but going back in the hierarchy
- $files_list[] = array($source, 'local', 'rel');
- $dir = '';
- if (!empty($abs_path)) {
- $dir = dirname($abs_path) . '/';
- }
- $new_abs_path = realpath($dir . $source);
- $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- } else {
- //no starting '/', making it relative to current document's path
- if (substr($source, 0, 2) == './') {
- $source = substr($source, 2);
- }
- $files_list[] = array($source, 'local', 'rel');
- $dir = '';
- if (!empty($abs_path)) {
- $dir = dirname($abs_path) . '/';
- }
- $new_abs_path = realpath($dir . $source);
- $in_files_list[] = self::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity + 1);
- if (count($in_files_list) > 0) {
- $files_list = array_merge($files_list, $in_files_list);
- }
- }
- }
- }
- }
- }
- break;
- default: //ignore
- break;
- }
- $checked_files_list = array();
- $checked_array_list = array();
- if (count($files_list) > 0) {
- foreach ($files_list as $idx => $file) {
- if (!empty($file[0])) {
- if (!in_array($file[0], $checked_files_list)) {
- $checked_files_list[] = $files_list[$idx][0];
- $checked_array_list[] = $files_list[$idx];
- }
- }
- }
- }
- return $checked_array_list;
- }
- /**
- * Parses the HTML attributes given as string.
- *
- * @param string HTML attribute string
- * @param array List of attributes that we want to get back
- * @param array
- * @return array An associative array of attributes
- * @author Based on a function from the HTML_Common2 PEAR module *
- */
- public static function parse_HTML_attributes($attrString, $wanted = array(), $explode_variables = array())
- {
- $attributes = array();
- $regs = array();
- $reduced = false;
- if (count($wanted) > 0) {
- $reduced = true;
- }
- try {
- //Find all occurences of something that looks like a URL
- // The structure of this regexp is:
- // (find protocol) then
- // (optionally find some kind of space 1 or more times) then
- // find (either an equal sign or a bracket) followed by an optional space
- // followed by some text without quotes (between quotes itself or not)
- // then possible closing brackets if we were in the opening bracket case
- // OR something like @import()
- $res = preg_match_all(
- '/(((([A-Za-z_:])([A-Za-z0-9_:\.-]*))' .
- // '/(((([A-Za-z_:])([A-Za-z0-9_:\.-]|[^\x00-\x7F])*)' . -> seems to be taking too much
- // '/(((([A-Za-z_:])([^\x00-\x7F])*)' . -> takes only last letter of parameter name
- '([ \n\t\r]+)?(' .
- // '(=([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+))' . -> doesn't restrict close enough to the url itself
- '(=([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+))' .
- '|' .
- // '(\(([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)\))' . -> doesn't restrict close enough to the url itself
- '(\(([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+)\))' .
- '))' .
- '|' .
- // '(@import([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)))?/', -> takes a lot (like 100's of thousands of empty possibilities)
- '(@import([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)))/',
- $attrString,
- $regs
- );
- } catch (Exception $e) {
- error_log('Caught exception: ' . $e->getMessage(), 0);
- }
- if ($res) {
- for ($i = 0; $i < count($regs[1]); $i++) {
- $name = trim($regs[3][$i]);
- $check = trim($regs[0][$i]);
- $value = trim($regs[10][$i]);
- if (empty($value) and !empty($regs[13][$i])) {
- $value = $regs[13][$i];
- }
- if (empty($name) && !empty($regs[16][$i])) {
- $name = '@import';
- $value = trim($regs[16][$i]);
- }
- if (!empty($name)) {
- if (!$reduced OR in_array(strtolower($name), $wanted)) {
- if ($name == $check) {
- $attributes[strtolower($name)][] = strtolower($name);
- } else {
- if (!empty($value) && ($value[0] == '\'' || $value[0] == '"')) {
- $value = substr($value, 1, -1);
- }
- if ($value == 'API.LMSGetValue(name') {
- $value = 'API.LMSGetValue(name)';
- }
- //Gets the xx.flv value from the string flashvars="width=320&height=240&autostart=false&file=xxx.flv&repeat=false"
- if (isset($explode_variables[$name])) {
- $value_modified = str_replace('&', '&', $value);
- $value_array = explode('&', $value_modified);
- foreach ($value_array as $item) {
- list($key, $item_value) = explode('=', $item);
- if ($key == $explode_variables[$name]) {
- $attributes[strtolower($name)][] = $item_value;
- }
- }
- }
- $attributes[strtolower($name)][] = $value;
- }
- }
- }
- }
- }
- return $attributes;
- }
- /**
- * Replace urls inside content html from a copy course
- * @param string $content_html
- * @param string $origin_course_code
- * @param string $destination_course_directory
- * @param string $origin_course_path_from_zip
- * @param string $origin_course_info_path
- *
- * @return string new content html with replaced urls or return false if content is not a string
- */
- static function replace_urls_inside_content_html_from_copy_course(
- $content_html,
- $origin_course_code,
- $destination_course_directory,
- $origin_course_path_from_zip = null,
- $origin_course_info_path = null
- ) {
- require_once api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php';
- if (empty($content_html)) {
- return false;
- }
- $orig_source_html = DocumentManager::get_resources_from_source_html($content_html);
- $orig_course_info = api_get_course_info($origin_course_code);
- // Course does not exist in the current DB probably this came from a zip file?
- if (empty($orig_course_info)) {
- if (!empty($origin_course_path_from_zip)) {
- $orig_course_path = $origin_course_path_from_zip.'/';
- $orig_course_info_path = $origin_course_info_path;
- }
- } else {
- $orig_course_path = api_get_path(SYS_PATH).'courses/'.$orig_course_info['path'] . '/';
- $orig_course_info_path = $orig_course_info['path'];
- }
- $destination_course_code = CourseManager::get_course_id_from_path($destination_course_directory);
- $destination_course_info = api_get_course_info($destination_course_code);
- $dest_course_path = api_get_path(SYS_COURSE_PATH) . $destination_course_directory . '/';
- $dest_course_path_rel = api_get_path(REL_COURSE_PATH) . $destination_course_directory . '/';
- $user_id = api_get_user_id();
- if (!empty($orig_source_html)) {
- foreach ($orig_source_html as $source) {
- // Get information about source url
- $real_orig_url = $source[0]; // url
- $scope_url = $source[1]; // scope (local, remote)
- $type_url = $source[2]; // type (rel, abs, url)
- // Get path and query from origin url
- $orig_parse_url = parse_url($real_orig_url);
- $real_orig_path = isset($orig_parse_url['path']) ? $orig_parse_url['path'] : null;
- $real_orig_query = isset($orig_parse_url['query']) ? $orig_parse_url['query'] : null;
- // Replace origin course code by destination course code from origin url query
- $dest_url_query = '';
- if (!empty($real_orig_query)) {
- $dest_url_query = '?' . $real_orig_query;
- if (strpos($dest_url_query, $origin_course_code) !== false) {
- $dest_url_query = str_replace($origin_course_code, $destination_course_code, $dest_url_query);
- }
- }
- if ($scope_url == 'local') {
- if ($type_url == 'abs' || $type_url == 'rel') {
- $document_file = strstr($real_orig_path, 'document');
- if (strpos($real_orig_path, $document_file) !== false) {
- $origin_filepath = $orig_course_path.$document_file;
- $destination_filepath = $dest_course_path.$document_file;
- //var_dump($origin_filepath, $destination_filepath);
- // copy origin file inside destination course
- if (file_exists($origin_filepath)) {
- $filepath_dir = dirname($destination_filepath);
- if (!is_dir($filepath_dir)) {
- $perm = api_get_permissions_for_new_directories();
- $result = @mkdir($filepath_dir, $perm, true);
- if ($result) {
- $filepath_to_add = str_replace(array($dest_course_path, 'document'), '', $filepath_dir);
- //Add to item properties to the new folder
- $doc_id = add_document(
- $destination_course_info,
- $filepath_to_add,
- 'folder',
- 0,
- basename($filepath_to_add)
- );
- api_item_property_update(
- $destination_course_info,
- TOOL_DOCUMENT,
- $doc_id,
- 'FolderCreated',
- $user_id,
- null,
- null,
- null,
- null
- );
- }
- }
- if (!file_exists($destination_filepath)) {
- $result = @copy($origin_filepath, $destination_filepath);
- if ($result) {
- $filepath_to_add = str_replace(array($dest_course_path, 'document'), '', $destination_filepath);
- $size = filesize($destination_filepath);
- // Add to item properties to the file
- $doc_id = add_document(
- $destination_course_info,
- $filepath_to_add,
- 'file',
- $size,
- basename($filepath_to_add)
- );
- api_item_property_update(
- $destination_course_info,
- TOOL_DOCUMENT,
- $doc_id,
- 'FolderCreated',
- $user_id,
- null,
- null,
- null,
- null
- );
- }
- }
- }
- // Replace origin course path by destination course path.
- if (strpos($content_html, $real_orig_url) !== false) {
- $url_course_path = str_replace($orig_course_info_path.'/'.$document_file, '', $real_orig_path);
- //var_dump($dest_course_path_rel);
- //$destination_url = $url_course_path . $destination_course_directory . '/' . $document_file . $dest_url_query;
- // See BT#7780
- $destination_url = $dest_course_path_rel . $document_file . $dest_url_query;
- // If the course code doesn't exist in the path? what we do? Nothing! see BT#1985
- if (strpos($real_orig_path, $origin_course_code) === false) {
- $url_course_path = $real_orig_path;
- $destination_url = $real_orig_path;
- }
- $content_html = str_replace($real_orig_url, $destination_url, $content_html);
- }
- }
- // replace origin course code by destination course code from origin url
- if (strpos($real_orig_url, '?') === 0) {
- $dest_url = str_replace($origin_course_code, $destination_course_code, $real_orig_url);
- $content_html = str_replace($real_orig_url, $dest_url, $content_html);
- }
- }
- }
- }
- }
- return $content_html;
- }
- /**
- * Replace urls inside content html when moving a file
- * @todo this code is only called in document.php but is commented
- * @param string content html
- * @param string origin
- * @param string destination
- * @return string new content html with replaced urls or return false if content is not a string
- */
- function replace_urls_inside_content_html_when_moving_file($file_name, $original_path, $destiny_path)
- {
- if (substr($original_path, strlen($original_path) - 1, strlen($original_path)) == '/') {
- $original = $original_path . $file_name;
- } else {
- $original = $original_path . '/' . $file_name;
- }
- if (substr($destiny_path, strlen($destiny_path) - 1, strlen($destiny_path)) == '/') {
- $destination = $destiny_path . $file_name;
- } else {
- $destination = $destiny_path . '/' . $file_name;
- }
- $original_count = count(explode('/', $original));
- $destination_count = count(explode('/', $destination));
- if ($original_count == $destination_count) {
- //Nothing to change
- return true;
- }
- if ($original_count > $destination_count) {
- $mode = 'outside';
- } else {
- $mode = 'inside';
- }
- //We do not select the $original_path becayse the file was already moved
- $content_html = file_get_contents($destiny_path . '/' . $file_name);
- $destination_file = $destiny_path . '/' . $file_name;
- $pre_original = strstr($original_path, 'document');
- $pre_destin = strstr($destiny_path, 'document');
- $pre_original = substr($pre_original, 8, strlen($pre_original));
- $pre_destin = substr($pre_destin, 8, strlen($pre_destin));
- $levels = count(explode('/', $pre_destin)) - 1;
- $link_to_add = '';
- for ($i = 1; $i <= $levels; $i++) {
- $link_to_add .= '../';
- }
- if ($pre_original == '/') {
- $pre_original = '';
- }
- if ($pre_destin == '/') {
- $pre_destin = '';
- }
- if ($pre_original != '') {
- $pre_original = '..' . $pre_original . '/';
- }
- if ($pre_destin != '') {
- $pre_destin = '..' . $pre_destin . '/';
- }
- $levels = explode('/', $pre_original);
- $count_pre_destination_levels = 0;
- foreach ($levels as $item) {
- if (!empty($item) && $item != '..') {
- $count_pre_destination_levels++;
- }
- }
- $count_pre_destination_levels--;
- //$count_pre_destination_levels = count() - 3;
- if ($count_pre_destination_levels == 0) {
- $count_pre_destination_levels = 1;
- }
- //echo '$count_pre_destination_levels '. $count_pre_destination_levels;
- $pre_remove = '';
- for ($i = 1; $i <= $count_pre_destination_levels; $i++) {
- $pre_remove .='..\/';
- }
- $orig_source_html = DocumentManager::get_resources_from_source_html($content_html);
- foreach ($orig_source_html as $source) {
- // get information about source url
- $real_orig_url = $source[0]; // url
- $scope_url = $source[1]; // scope (local, remote)
- $type_url = $source[2]; // tyle (rel, abs, url)
- // Get path and query from origin url
- $orig_parse_url = parse_url($real_orig_url);
- $real_orig_path = $orig_parse_url['path'];
- $real_orig_query = $orig_parse_url['query'];
- // Replace origin course code by destination course code from origin url query
- /*
- $dest_url_query = '';
- if (!empty($real_orig_query)) {
- $dest_url_query = '?'.$real_orig_query;
- if (strpos($dest_url_query,$origin_course_code) !== false) {
- $dest_url_query = str_replace($origin_course_code, $destination_course_code, $dest_url_query);
- }
- } */
- if ($scope_url == 'local') {
- if ($type_url == 'abs' || $type_url == 'rel') {
- $document_file = strstr($real_orig_path, 'document');
- if (strpos($real_orig_path, $document_file) !== false) {
- echo 'continue1';
- continue;
- } else {
- $real_orig_url_temp = '';
- if ($mode == 'inside') {
- $real_orig_url_temp = str_replace('../', '', $real_orig_url);
- $destination_url = $link_to_add . $real_orig_url_temp;
- } else {
- $real_orig_url_temp = $real_orig_url;
- $destination_url = preg_replace("/" . $pre_remove . "/", '', $real_orig_url, 1);
- }
- if ($real_orig_url == $destination_url) {
- //echo 'continue2';
- continue;
- }
- $content_html = str_replace($real_orig_url, $destination_url, $content_html);
- }
- } else {
- echo 'continue3';
- continue;
- }
- }
- }
- $return = file_put_contents($destination, $content_html);
- return $return;
- }
- /**
- * @param int $document_id
- * @param string $course_code
- */
- public static function export_to_pdf($document_id, $course_code)
- {
- require_once api_get_path(LIBRARY_PATH) . 'pdf.lib.php';
- $course_data = api_get_course_info($course_code);
- $document_data = self::get_document_data_by_id($document_id, $course_code);
- $file_path = api_get_path(SYS_COURSE_PATH) . $course_data['path'] . '/document' . $document_data['path'];
- $pdf = new PDF();
- $pdf->html_to_pdf($file_path, $document_data['title'], $course_code);
- }
- /**
- * Uploads a document
- *
- * @param array $files the $_FILES variable
- * @param string $path
- * @param string $title
- * @param string $comment
- * @param int $unzip unzip or not the file
- * @param string $if_exists overwrite, rename or warn (default)
- * @param bool $index_document index document (search xapian module)
- * @param bool $show_output print html messages
- * @return array|bool
- */
- public static function upload_document(
- $files,
- $path,
- $title = null,
- $comment = null,
- $unzip = 0,
- $if_exists = null,
- $index_document = false,
- $show_output = false
- ) {
- require_once api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php';
- $course_info = api_get_course_info();
- $course_dir = $course_info['path'] . '/document';
- $sys_course_path = api_get_path(SYS_COURSE_PATH);
- $base_work_dir = $sys_course_path . $course_dir;
- if (isset($files['file'])) {
- $upload_ok = process_uploaded_file($files['file'], $show_output);
- if ($upload_ok) {
- // File got on the server without problems, now process it
- $new_path = handle_uploaded_document(
- $course_info,
- $files['file'],
- $base_work_dir,
- $path,
- api_get_user_id(),
- api_get_group_id(),
- null,
- $unzip,
- $if_exists,
- $show_output
- );
- if ($new_path) {
- $docid = DocumentManager::get_document_id($course_info, $new_path);
- if (!empty($docid)) {
- $table_document = Database::get_course_table(TABLE_DOCUMENT);
- $params = array();
- if (!empty($title)) {
- $params['title'] = get_document_title($title);
- } else {
- if ($if_exists == 'rename') {
- $new_path = basename($new_path);
- $params['title'] = get_document_title($new_path);
- } else {
- $params['title'] = get_document_title($files['file']['name']);
- }
- }
- if (!empty($comment)) {
- $params['comment'] = trim($comment);
- }
- Database::update($table_document, $params, array('id = ? AND c_id = ? ' => array($docid, $course_info['real_id'])));
- }
- // Showing message when sending zip files
- if ($new_path === true && $unzip == 1 && $show_output) {
- Display::display_confirmation_message(get_lang('UplUploadSucceeded') . '<br />', false);
- }
- if ($index_document) {
- self::index_document($docid, $course_info['code'], null, $_POST['language'], $_REQUEST, $if_exists);
- }
- if (!empty($docid) && is_numeric($docid)) {
- $document_data = self::get_document_data_by_id($docid, $course_info['code']);
- return $document_data;
- }
- }
- }
- }
- return false;
- }
- /**
- * Obtains the text inside the file with the right parser
- */
- function get_text_content($doc_path, $doc_mime)
- {
- // TODO: review w$ compatibility
- // Use usual exec output lines array to store stdout instead of a temp file
- // because we need to store it at RAM anyway before index on ChamiloIndexer object
- $ret_val = null;
- switch ($doc_mime) {
- case 'text/plain':
- $handle = fopen($doc_path, 'r');
- $output = array(fread($handle, filesize($doc_path)));
- fclose($handle);
- break;
- case 'application/pdf':
- exec("pdftotext $doc_path -", $output, $ret_val);
- break;
- case 'application/postscript':
- $temp_file = tempnam(sys_get_temp_dir(), 'chamilo');
- exec("ps2pdf $doc_path $temp_file", $output, $ret_val);
- if ($ret_val !== 0) { // shell fail, probably 127 (command not found)
- return false;
- }
- exec("pdftotext $temp_file -", $output, $ret_val);
- unlink($temp_file);
- break;
- case 'application/msword':
- exec("catdoc $doc_path", $output, $ret_val);
- break;
- case 'text/html':
- exec("html2text $doc_path", $output, $ret_val);
- break;
- case 'text/rtf':
- // Note: correct handling of code pages in unrtf
- // on debian lenny unrtf v0.19.2 can not, but unrtf v0.20.5 can
- exec("unrtf --text $doc_path", $output, $ret_val);
- if ($ret_val == 127) { // command not found
- return false;
- }
- // Avoid index unrtf comments
- if (is_array($output) && count($output) > 1) {
- $parsed_output = array();
- foreach ($output as & $line) {
- if (!preg_match('/^###/', $line, $matches)) {
- if (!empty($line)) {
- $parsed_output[] = $line;
- }
- }
- }
- $output = $parsed_output;
- }
- break;
- case 'application/vnd.ms-powerpoint':
- exec("catppt $doc_path", $output, $ret_val);
- break;
- case 'application/vnd.ms-excel':
- exec("xls2csv -c\" \" $doc_path", $output, $ret_val);
- break;
- }
- $content = '';
- if (!is_null($ret_val)) {
- if ($ret_val !== 0) { // shell fail, probably 127 (command not found)
- return false;
- }
- }
- if (isset($output)) {
- foreach ($output as & $line) {
- $content .= $line . "\n";
- }
- return $content;
- } else {
- return false;
- }
- }
- /**
- * Calculates the total size of all documents in a course
- *
- * @author Bert vanderkimpen
- * @param int $to_group_id (to calculate group document space)
- * @return int total size
- */
- static function documents_total_space($course_id = null, $group_id = null, $session_id = null)
- {
- $TABLE_ITEMPROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);
- $TABLE_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- if (isset($course_id)) {
- $course_id = intval($course_id);
- } else {
- $course_id = api_get_course_int_id();
- }
- $group_condition = null;
- if (isset($group_id)) {
- $group_id = intval($group_id);
- $group_condition = " AND props.to_group_id='" . $group_id . "' ";
- }
- $session_condition = null;
- if (isset($session_id)) {
- $session_id = intval($session_id);
- $session_condition = " AND props.id_session='" . $session_id . "' ";
- }
- $sql = "SELECT SUM(size)
- FROM $TABLE_ITEMPROPERTY AS props,
- $TABLE_DOCUMENT AS docs
- WHERE props.c_id = $course_id AND
- docs.c_id = $course_id AND
- docs.id = props.ref AND
- props.tool = '" . TOOL_DOCUMENT . "' AND
- props.visibility <> 2
- $group_condition
- $session_condition
- ";
- $result = Database::query($sql);
- if ($result && Database::num_rows($result) != 0) {
- $row = Database::fetch_row($result);
- return $row[0];
- } else {
- return 0;
- }
- }
- /**
- * Here we count 1 Kilobyte = 1024 Bytes, 1 Megabyte = 1048576 Bytes
- */
- static function display_quota($course_quota, $already_consumed_space)
- {
- $course_quota_m = round($course_quota / 1048576);
- $already_consumed_space_m = round($already_consumed_space / 1048576);
- $message = get_lang('MaximumAllowedQuota') . ' <strong>' . $course_quota_m . ' megabyte</strong>.<br />';
- $message .= get_lang('CourseCurrentlyUses') . ' <strong>' . $already_consumed_space_m . ' megabyte</strong>.<br />';
- $percentage = round(($already_consumed_space / $course_quota * 100), 1);
- $other_percentage = $percentage < 100 ? 100 - $percentage : 0;
- // Decide where to place percentage in graph
- if ($percentage >= 50) {
- $text_in_filled = ' ' . $other_percentage . '%';
- $text_in_unfilled = '';
- } else {
- $text_in_unfilled = ' ' . $other_percentage . '%';
- $text_in_filled = '';
- }
- // Decide the background colour of the graph
- if ($percentage < 65) {
- $colour = '#00BB00'; // Safe - green
- } elseif ($percentage < 90) {
- $colour = '#ffd400'; // Filling up - yelloworange
- } else {
- $colour = '#DD0000'; // Full - red
- }
- // This is used for the table width: a table of only 100 pixels looks too small
- $visual_percentage = 4 * $percentage;
- $visual_other_percentage = 4 * $other_percentage;
- $message .= get_lang('PercentageQuotaInUse') . ': <strong>' . $percentage . '%</strong>.<br />' .
- get_lang('PercentageQuotaFree') . ': <strong>' . $other_percentage . '%</strong>.<br />';
- $show_percentage = ' ' . $percentage . '%';
- $message .= '<div style="width: 80%; text-align: center; -moz-border-radius: 5px 5px 5px 5px; border: 1px solid #aaa; background-image: url(\'' . api_get_path(WEB_CODE_PATH) . 'css/' . api_get_visual_theme() . '/images/bg-header4.png\');" class="document-quota-bar">' .
- '<div style="width:' . $percentage . '%; background-color: #bbb; border-right:3px groove #bbb; -moz-border-radius:5px;"> </div>' .
- '<span style="margin-top: -15px; margin-left:-15px; position: absolute;font-weight:bold;">' . $show_percentage . '</span></div>';
- echo $message;
- }
- /**
- * Display the document quota in a simple way
- *
- * Here we count 1 Kilobyte = 1024 Bytes, 1 Megabyte = 1048576 Bytes
- */
- static function display_simple_quota($course_quota, $already_consumed_space)
- {
- $course_quota_m = round($course_quota / 1048576);
- $already_consumed_space_m = round($already_consumed_space / 1048576, 2);
- $percentage = $already_consumed_space / $course_quota * 100;
- $percentage = round($percentage, 1);
- $message = get_lang('YouAreCurrentlyUsingXOfYourX');
- $message = sprintf($message, $already_consumed_space_m, $percentage . '%', $course_quota_m . ' ');
- echo Display::div($message, array('id' => 'document_quota'));
- }
- /**
- * Checks if there is enough place to add a file on a directory
- * on the base of a maximum directory size allowed
- *
- * @author Bert Vanderkimpen
- * @param int file_size size of the file in byte
- * @param int max_dir_space maximum size
- * @return boolean true if there is enough space, false otherwise
- *
- * @see enough_space() uses documents_total_space() function
- */
- static function enough_space($file_size, $max_dir_space) {
- if ($max_dir_space) {
- $already_filled_space = self::documents_total_space();
- if (($file_size + $already_filled_space) > $max_dir_space) {
- return false;
- }
- }
- return true;
- }
- /**
- * @param array parameters: count, url, extension
- * @return string
- */
- static function generate_jplayer_jquery($params = array())
- {
- $js_path = api_get_path(WEB_LIBRARY_PATH) . 'javascript/';
- $js = ' $("#jquery_jplayer_' . $params['count'] . '").jPlayer({
- ready: function() {
- $(this).jPlayer("setMedia", {
- ' . $params['extension'] . ' : "' . $params['url'] . '"
- });
- },
- play: function() { // To avoid both jPlayers playing together.
- $(this).jPlayer("pauseOthers");
- },
- //errorAlerts: true,
- //warningAlerts: true,
- swfPath: "' . $js_path . 'jquery-jplayer",
- //supplied: "m4a, oga, mp3, ogg, wav",
- supplied: "' . $params['extension'] . '",
- wmode: "window",
- solution: "flash, html", // Do not change this setting
- cssSelectorAncestor: "#jp_container_' . $params['count'] . '",
- }); ' . "\n\n";
- return $js;
- }
- /**
- *
- * Shows a play icon next to the document title in the document list
- * @param int
- * @param string
- * @return string html content
- */
- static function generate_media_preview($i, $type = 'simple')
- {
- $i = intval($i);
- $extra_controls = $progress = '';
- if ($type == 'advanced') {
- $extra_controls = ' <li><a href="javascript:;" class="jp-stop" tabindex="1">stop</a></li>
- <li><a href="#" class="jp-mute" tabindex="1">mute</a></li>
- <li><a href="#" class="jp-unmute" tabindex="1">unmute</a></li>';
- $progress = '<div class="jp-progress">
- <div class="jp-seek-bar">
- <div class="jp-play-bar"></div>
- </div>
- </div>';
- }
- //Shows only the play button
- $html = '<div id="jquery_jplayer_' . $i . '" class="jp-jplayer"></div>
- <div id="jp_container_' . $i . '" class="jp-audio">
- <div class="jp-type-single">
- <div class="jp-gui jp-interface">
- <ul class="jp-controls">
- <li><a href="javascript:;" class="jp-play" tabindex="1">play</a></li>
- <li><a href="javascript:;" class="jp-pause" tabindex="1">pause</a></li>
- ' . $extra_controls . '
- </ul>
- ' . $progress . '
- </div>
- </div>
- </div>';
- //<div id="jplayer_inspector_'.$i.'"></div>
- return $html;
- }
- /**
- * @param array $document_data
- * @return string
- */
- static function generate_video_preview($document_data = array())
- {
- $html = '
- <div id="jp_container_1" class="jp-video">
- <div class="jp-type-single">
- <div id="jquery_jplayer_1" class="jp-jplayer"></div>
- <div class="jp-gui">
- <div class="jp-video-play">
- <a href="javascript:;" class="jp-video-play-icon" tabindex="1">play</a>
- </div>
- <div class="jp-interface">
- <div class="jp-progress">
- <div class="jp-seek-bar">
- <div class="jp-play-bar"></div>
- </div>
- </div>
- <div class="jp-current-time"></div>
- <div class="jp-controls-holder">
- <ul class="jp-controls">
- <li><a href="javascript:;" class="jp-play" tabindex="1">play</a></li>
- <li><a href="javascript:;" class="jp-pause" tabindex="1">pause</a></li>
- <li><a href="javascript:;" class="jp-stop" tabindex="1">stop</a></li>
- <li><a href="javascript:;" class="jp-mute" tabindex="1" title="mute">mute</a></li>
- <li><a href="javascript:;" class="jp-unmute" tabindex="1" title="unmute">unmute</a></li>
- <li><a href="javascript:;" class="jp-volume-max" tabindex="1" title="max volume">max volume</a></li>
- </ul>
- <div class="jp-volume-bar">
- <div class="jp-volume-bar-value"></div>
- </div>
- <ul class="jp-toggles">
- <li><a href="javascript:;" class="jp-full-screen" tabindex="1" title="full screen">full screen</a></li>
- <li><a href="javascript:;" class="jp-restore-screen" tabindex="1" title="restore screen">restore screen</a></li>
- <li><a href="javascript:;" class="jp-repeat" tabindex="1" title="repeat">repeat</a></li>
- <li><a href="javascript:;" class="jp-repeat-off" tabindex="1" title="repeat off">repeat off</a></li>
- </ul>
- </div>
- <div class="jp-title">
- <ul>
- <li>' . $document_data['title'] . '</li>
- </ul>
- </div>
- </div>
- </div>
- <div class="jp-no-solution">
- <span>' . get_lang('UpdateRequire') . '</span>
- ' . get_lang("ToPlayTheMediaYouWillNeedToUpdateYourBrowserToARecentVersionYouCanAlsoDownloadTheFile") . '
- </div>
- </div>
- </div>';
- return $html;
- }
- /**
- * @param array $course_info
- * @param bool $lp_id
- * @param string $target
- * @param int $session_id
- * @param bool $add_move_button
- * @param string $filter_by_folder
- * @param string $overwrite_url
- * @param bool $showInvisibleFiles
- * @param bool $showOnlyFolders
- * @param int $folderId
- *
- * @return string
- */
- public static function get_document_preview(
- $course_info,
- $lp_id = false,
- $target = '',
- $session_id = 0,
- $add_move_button = false,
- $filter_by_folder = null,
- $overwrite_url = null,
- $showInvisibleFiles = false,
- $showOnlyFolders = false,
- $folderId = false
- ) {
- if (empty($course_info['real_id']) || empty($course_info['code']) || !is_array($course_info)) {
- return '';
- }
- $overwrite_url = Security::remove_XSS($overwrite_url);
- $user_id = api_get_user_id();
- $user_in_course = false;
- if (api_is_platform_admin()) {
- $user_in_course = true;
- }
- if (!$user_in_course) {
- if (CourseManager::is_course_teacher($user_id, $course_info['code'])) {
- $user_in_course = true;
- }
- }
- // Condition for the session
- $session_id = intval($session_id);
- if (!$user_in_course) {
- if (empty($session_id)) {
- if (CourseManager::is_user_subscribed_in_course($user_id, $course_info['code'])) {
- $user_in_course = true;
- }
- //Check if course is open then we can consider that the student is regitered to the course
- if (isset($course_info) && in_array($course_info['visibility'], array(2, 3))) {
- $user_in_course = true;
- }
- } else {
- $user_status = SessionManager::get_user_status_in_course_session($user_id, $course_info['code'], $session_id);
- //is true if is an student, course session teacher or coach
- if (in_array($user_status, array('0', '2', '6'))) {
- $user_in_course = true;
- }
- }
- }
- $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
- $tbl_item_prop = Database::get_course_table(TABLE_ITEM_PROPERTY);
- $path = '/';
- $path = Database::escape_string(str_replace('_', '\_', $path));
- $added_slash = ($path == '/') ? '' : '/';
- $condition_session = " AND (id_session = '$session_id' OR id_session = '0' )";
- $add_folder_filter = null;
- if (!empty($filter_by_folder)) {
- $add_folder_filter = " AND docs.path LIKE '" . Database::escape_string($filter_by_folder) . "%'";
- }
- // If we are in LP display hidden folder https://support.chamilo.org/issues/6679
- $lp_visibility_condition = null;
- if ($lp_id) {
- // $lp_visibility_condition = " OR filetype='folder'";
- if ($showInvisibleFiles) {
- $lp_visibility_condition .= ' OR last.visibility = 0';
- }
- }
- $showOnlyFoldersCondition = null;
- if ($showOnlyFolders) {
- //$showOnlyFoldersCondition = " AND docs.filetype = 'folder' ";
- }
- $folderCondition = " AND docs.path LIKE '" . $path . $added_slash . "%' ";
- if ($folderId !== false) {
- $parentData = self::get_document_data_by_id($folderId, $course_info['code']);
- if (!empty($parentData)) {
- $cleanedPath = Database::escape_string($parentData['path']);
- $num = substr_count($cleanedPath, '/');
- $notLikeCondition = null;
- for ($i = 1; $i <= $num; $i++) {
- $repeat = str_repeat('/%', $i+1);
- $notLikeCondition .= " AND docs.path NOT LIKE '".$cleanedPath.$repeat."' ";
- }
- $folderCondition = " AND
- docs.id <> $folderId AND
- docs.path LIKE '".$cleanedPath."/%'
- $notLikeCondition
- ";
- } else {
- $folderCondition = " AND
- docs.filetype = 'file' ";
- }
- }
- $levelCondition = null;
- if ($folderId === false) {
- $levelCondition = " AND docs.path NOT LIKE'/%/%'";
- }
- $sql = "SELECT last.visibility, docs.*
- FROM $tbl_item_prop AS last INNER JOIN $tbl_doc AS docs
- ON (docs.id = last.ref AND docs.c_id = last.c_id)
- WHERE
- docs.path NOT LIKE '%_DELETED_%' AND
- last.tool = '" . TOOL_DOCUMENT . "' $condition_session AND
- (last.visibility = '1' $lp_visibility_condition) AND
- last.visibility <> 2 AND
- docs.c_id = {$course_info['real_id']} AND
- last.c_id = {$course_info['real_id']}
- $showOnlyFoldersCondition
- $folderCondition
- $levelCondition
- $add_folder_filter
- ORDER BY docs.filetype DESC, docs.title ASC";
- $res_doc = Database::query($sql);
- $resources = Database::store_result($res_doc, 'ASSOC');
- $return = '';
- if ($lp_id) {
- if ($folderId === false) {
- $return .= '<div class="lp_resource_element">';
- $return .= Display::return_icon('new_doc.gif', '', array(), ICON_SIZE_SMALL);
- $return .= Display::url(
- get_lang('NewDocument'),
- api_get_self().'?'.api_get_cidreq().'&action=add_item&type='.TOOL_DOCUMENT.'&lp_id='.$_SESSION['oLP']->lp_id
- );
- $return .= '</div>';
- }
- } else {
- $return .= Display::div(
- Display::url(
- Display::return_icon('close.png', get_lang('Close'), array(), ICON_SIZE_SMALL),
- ' javascript:void(0);',
- array('id' => 'close_div_' . $course_info['real_id'] . '_' . $session_id, 'class' => 'close_div')
- ),
- array('style' => 'position:absolute;right:10px')
- );
- }
- // If you want to debug it, I advise you to do "echo" on the eval statements.
- $newResources = array();
- if (!empty($resources) && $user_in_course) {
- foreach ($resources as $resource) {
- $is_visible = self::is_visible_by_id(
- $resource['id'],
- $course_info,
- $session_id,
- api_get_user_id()
- );
- if (!$is_visible) {
- continue;
- }
- $newResources[] = $resource;
- }
- }
- $label = get_lang('Documents');
- if ($folderId === false) {
- $documents[$label] = array(
- 'id' => 0,
- 'files' => $newResources
- );
- } else {
- $documents[$parentData['title']] = array(
- 'id' => intval($folderId),
- 'files' => $newResources
- );
- }
- $write_result = self::write_resources_tree(
- $course_info,
- $session_id,
- $documents,
- $lp_id,
- $target,
- $add_move_button,
- $overwrite_url,
- $folderId
- );
- $return .= $write_result;
- $img_path = api_get_path(WEB_IMG_PATH);
- if ($lp_id == false) {
- $url = api_get_path(WEB_AJAX_PATH).'lp.ajax.php?a=get_documents&url='.$overwrite_url.'&lp_id='.$lp_id.'&cidReq='.$course_info['code'];
- $return .= "<script>
- $('.doc_folder').click(function() {
- var realId = this.id;
- var my_id = this.id.split('_')[2];
- var tempId = 'temp_'+my_id;
- $('#res_'+my_id).show();
- var tempDiv = $('#'+realId).find('#'+tempId);
- if (tempDiv.length == 0) {
- $.ajax({
- async: false,
- type: 'GET',
- url: '".$url."',
- data: 'folder_id='+my_id,
- success: function(data) {
- $('#'+realId).append('<div id='+tempId+'>'+data+'</div>');
- }
- });
- }
- });
- $('.close_div').click(function() {
- var course_id = this.id.split('_')[2];
- var session_id = this.id.split('_')[3];
- $('#document_result_'+course_id+'_'+session_id).hide();
- $('.lp_resource').remove();
- $('.document_preview_container').html('');
- });
- </script>";
- } else {
- //For LPs
- $url = api_get_path(WEB_AJAX_PATH).'lp.ajax.php?a=get_documents&lp_id='.$lp_id.'&'.api_get_cidreq();
- $return .= "<script>
- function testResources(id, img) {
- var numericId = id.split('_')[1];
- var parentId = 'doc_id_'+numericId;
- var tempId = 'temp_'+numericId;
- var image = $('#'+img);
- if (image.hasClass('open')) {
- image.removeClass('open');
- image.attr('src', '" . $img_path . "nolines_plus.gif');
- $('#'+id).show();
- $('#'+tempId).hide();
- } else {
- image.addClass('open');
- image.attr('src', '" . $img_path . "nolines_minus.gif');
- $('#'+id).hide();
- $('#'+tempId).show();
- var tempDiv = $('#'+parentId).find('#'+tempId);
- if (tempDiv.length == 0) {
- $.ajax({
- type: 'GET',
- async: false,
- url: '".$url."',
- data: 'folder_id='+numericId,
- success: function(data) {
- tempDiv = $('#doc_id_'+numericId).append('<div id='+tempId+'>'+data+'</div>');
- }
- });
- }
- }
- }
- </script>";
- }
- if (!$user_in_course) {
- $return = '';
- }
- return $return;
- }
- private static function parseFile(
- $course_info,
- $session_id,
- $resource,
- $lp_id,
- $add_move_button,
- $target,
- $overwrite_url
- ) {
- $img_path = api_get_path(WEB_IMG_PATH);
- $img_sys_path = api_get_path(SYS_CODE_PATH) . 'img/';
- $web_code_path = api_get_path(WEB_CODE_PATH);
- $documentId = $resource['id'];
- $path = $resource['path'];
- if (empty($path)) {
- $num = 0;
- } else {
- $num = substr_count($path, '/') - 1;
- }
- // It's a file.
- $icon = choose_image($path);
- $position = strrpos($icon, '.');
- $icon = substr($icon, 0, $position) . '_small.gif';
- $my_file_title = $resource['title'];
- $visibility = $resource['visibility'];
- // If title is empty we try to use the path
- if (empty($my_file_title)) {
- $my_file_title = basename($path);
- }
- // Show the "image name" not the filename of the image.
- if ($lp_id) {
- //LP URL
- $url = api_get_path(WEB_CODE_PATH).'newscorm/lp_controller.php?'.api_get_cidreq().'&action=add_item&type=' . TOOL_DOCUMENT . '&file=' . $documentId . '&lp_id=' . $lp_id;
- if (!empty($overwrite_url)) {
- $url = $overwrite_url . '&cidReq=' . $course_info['code'] . '&id_session=' . $session_id . '&document_id=' . $documentId.'';
- }
- } else {
- // Direct document URL
- $url = $web_code_path . 'document/document.php?cidReq=' . $course_info['code'] . '&id_session=' . $session_id . '&id=' . $documentId;
- if (!empty($overwrite_url)) {
- $url = $overwrite_url . '&cidReq=' . $course_info['code'] . '&id_session=' . $session_id . '&document_id=' . $documentId;
- }
- }
- $img = $img_path . $icon;
- if (!file_exists($img_sys_path . $icon)) {
- $img = $img_path . 'icons/16/default_small.gif';
- }
- $link = Display::url(
- '<img alt="" src="' . $img . '" title="" /> ' . $my_file_title, $url,
- array('target' => $target)
- );
- $visibilityClass = null;
- if ($visibility == 0) {
- $visibilityClass = ' invisible ';
- }
- $return = null;
- if ($lp_id == false) {
- $return .= '<li class="doc_resource '.$visibilityClass.' " data_id="' . $documentId . '" data_type="document" title="' . $my_file_title . '" >';
- } else {
- $return .= '<li class="doc_resource lp_resource_element '.$visibilityClass.' " data_id="' . $documentId . '" data_type="document" title="' . $my_file_title . '" >';
- }
- $return .= '<div class="item_data" style="margin-left:' . ($num * 18) . 'px;margin-right:5px;">';
- if ($add_move_button) {
- $return .= '<a class="moved" href="#">';
- $return .= Display::return_icon('move_everywhere.png', get_lang('Move'), array(), ICON_SIZE_TINY);
- $return .= '</a> ';
- }
- $return .= $link;
- $return .= '</div></li>';
- return $return;
- }
- private static function parseFolder($folderId, $resource, $lp_id)
- {
- $title = isset($resource['title']) ? $resource['title'] : null;
- $path = isset($resource['path']) ? $resource['path'] : null;
- $img_path = api_get_path(WEB_IMG_PATH);
- if (empty($path)) {
- $num = 0;
- } else {
- $num = substr_count($path, '/');
- }
- // It's a folder.
- //hide some folders
- if (in_array($path,
- array('shared_folder', 'chat_files', 'HotPotatoes_files', 'css', 'certificates'))) {
- return null;
- } elseif (preg_match('/_groupdocs/', $path)) {
- return null;
- } elseif (preg_match('/sf_user_/', $path)) {
- return null;
- } elseif (preg_match('/shared_folder_session_/', $path)) {
- return null;
- }
- //trad some titles
- /*
- if ($key == 'images') {
- $key = get_lang('Images');
- } elseif ($key == 'gallery') {
- $key = get_lang('Gallery');
- } elseif ($key == 'flash') {
- $key = get_lang('Flash');
- } elseif ($key == 'audio') {
- $key = get_lang('Audio');
- } elseif ($key == 'video') {
- $key = get_lang('Video');
- }*/
- $onclick = '';
- // if in LP, hidden folder are displayed in grey
- $folder_class_hidden = "";
- if ($lp_id) {
- if (isset($resource['visible']) && $resource['visible'] == 0) {
- $folder_class_hidden = "doc_folder_hidden"; // in base.css
- }
- $onclick = 'onclick="javascript: testResources(\'res_' . $resource['id'] . '\',\'img_' . $resource['id'] . '\')"';
- }
- $return = null;
- if (empty($path)) {
- $return = '<ul class="lp_resource">';
- }
- $return .= '<li class="doc_folder '.$folder_class_hidden.'" id="doc_id_' . $resource['id'] . '" style="margin-left:' . ($num * 18) . 'px; ">';
- $image = $img_path.'nolines_plus.gif';
- if (empty($path)) {
- $image = $img_path.'nolines_minus.gif';
- }
- $return .= '<img style="cursor: pointer;" src="'.$image.'" align="absmiddle" id="img_'.$resource['id'] . '" '.$onclick.'>';
- $return .= '<img alt="" src="' . $img_path . 'lp_folder.gif" title="" align="absmiddle" /> ';
- $return .= '<span '.$onclick.' style="cursor: pointer;" >'.$title.'</span>';
- $return .= '</li>';
- if (empty($path)) {
- if ($folderId == false) {
- $return .= '<div id="res_' . $resource['id'] . '" >';
- } else {
- $return .= '<div id="res_' . $resource['id'] . '" style="display: none;" >';
- }
- }
- return $return;
- }
- /**
- * Generate and return an HTML list of resources based on a given array.
- * This list is used to show the course creator a list of available resources to choose from
- * when creating a learning path.
- * @param array $course_info
- * @param int $session_id
- * @param array $documents
- * @param bool $lp_id
- * @param string $target
- * @param bool $add_move_button
- * @param string $overwrite_url
- * @param int $folderId
- *
- * @return string
- */
- public static function write_resources_tree(
- $course_info,
- $session_id,
- $documents,
- $lp_id = false,
- $target = '',
- $add_move_button = false,
- $overwrite_url = null,
- $folderId = false
- ) {
- require_once api_get_path(LIBRARY_PATH) . 'fileDisplay.lib.php';
- $return = '';
- if (!empty($documents)) {
- foreach ($documents as $key => $resource) {
- if (isset($resource['id']) && is_int($resource['id'])) {
- $mainFolderResource = array(
- 'id' => $resource['id'],
- 'title' => $key,
- );
- if ($folderId === false) {
- $return .= self::parseFolder($folderId, $mainFolderResource, $lp_id);
- }
- if (isset($resource['files'])) {
- $return .= self::write_resources_tree(
- $course_info,
- $session_id,
- $resource['files'],
- $lp_id,
- $target,
- $add_move_button,
- $overwrite_url
- );
- }
- $return .= '</div>';
- $return .= '</ul>';
- } else {
- if ($resource['filetype'] == 'folder') {
- $return .= self::parseFolder($folderId, $resource, $lp_id);
- } else {
- $return .= self::parseFile(
- $course_info,
- $session_id,
- $resource,
- $lp_id,
- $add_move_button,
- $target,
- $overwrite_url
- );
- }
- }
- }
- }
- return $return;
- }
- /**
- * @param int $doc_id
- * @param string $course_code
- * @param int $session_id
- * @param int $user_id
- * @param int $groupId
- * @return bool
- */
- public static function check_visibility_tree($doc_id, $course_code, $session_id, $user_id, $groupId = 0)
- {
- $document_data = self::get_document_data_by_id($doc_id, $course_code, null, $session_id);
- if ($session_id != 0 && !$document_data) {
- $document_data = self::get_document_data_by_id($doc_id, $course_code, null, 0);
- }
- if (!empty($document_data)) {
- // If admin or course teacher, allow anyway
- if (api_is_platform_admin() || CourseManager::is_course_teacher($user_id, $course_code)) {
- return true;
- }
- $course_info = api_get_course_info($course_code);
- if ($document_data['parent_id'] == false || empty($document_data['parent_id'])) {
- if (!empty($groupId)) {
- return true;
- }
- $visible = self::is_visible_by_id($doc_id, $course_info, $session_id, $user_id);
- return $visible;
- } else {
- $visible = self::is_visible_by_id($doc_id, $course_info, $session_id, $user_id);
- if (!$visible) {
- return false;
- } else {
- return self::check_visibility_tree($document_data['parent_id'], $course_code, $session_id, $user_id, $groupId);
- }
- }
- } else {
- return false;
- }
- }
- /**
- * Index a given document.
- * @param int Document ID inside its corresponding course
- * @param string Course code
- * @param int Session ID (not used yet)
- * @param string Language of document's content (defaults to course language)
- * @param array Array of specific fields (['code'=>'value',...])
- * @param string What to do if the file already exists (default or overwrite)
- * @param bool When set to true, this runs the indexer without actually saving anything to any database
- * @return bool Returns true on presumed success, false on failure
- */
- public static function index_document(
- $docid,
- $course_code,
- $session_id = 0,
- $lang = 'english',
- $specific_fields_values = array(),
- $if_exists = '',
- $simulation = false
- ) {
- if (api_get_setting('search_enabled') !== 'true') {
- return false;
- }
- if (empty($docid) or $docid != intval($docid)) {
- return false;
- }
- if (empty($session_id)) {
- $session_id = api_get_session_id();
- }
- $course_info = api_get_course_info($course_code);
- $course_dir = $course_info['path'] . '/document';
- $sys_course_path = api_get_path(SYS_COURSE_PATH);
- $base_work_dir = $sys_course_path . $course_dir;
- $course_id = $course_info['real_id'];
- $table_document = Database::get_course_table(TABLE_DOCUMENT);
- $qry = "SELECT path, title FROM $table_document WHERE c_id = $course_id AND id = '$docid' LIMIT 1";
- $result = Database::query($qry);
- if (Database::num_rows($result) == 1) {
- $row = Database::fetch_array($result);
- $doc_path = api_get_path(SYS_COURSE_PATH) . $course_dir . $row['path'];
- //TODO: mime_content_type is deprecated, fileinfo php extension is enabled by default as of PHP 5.3.0
- // now versions of PHP on Debian testing(5.2.6-5) and Ubuntu(5.2.6-2ubuntu) are lower, so wait for a while
- $doc_mime = mime_content_type($doc_path);
- $allowed_mime_types = self::file_get_mime_type(true);
- // mime_content_type does not detect correctly some formats that are going to be supported for index, so an extensions array is used for the moment
- if (empty($doc_mime)) {
- $allowed_extensions = array('doc', 'docx', 'ppt', 'pptx', 'pps', 'ppsx', 'xls', 'xlsx', 'odt', 'odp', 'ods', 'pdf', 'txt', 'rtf', 'msg', 'csv', 'html', 'htm');
- $extensions = preg_split("/[\/\\.]/", $doc_path);
- $doc_ext = strtolower($extensions[count($extensions) - 1]);
- if (in_array($doc_ext, $allowed_extensions)) {
- switch ($doc_ext) {
- case 'ppt':
- case 'pps':
- $doc_mime = 'application/vnd.ms-powerpoint';
- break;
- case 'xls':
- $doc_mime = 'application/vnd.ms-excel';
- break;
- }
- }
- }
- //@todo move this nightmare in a search controller or something like that!!! J.M
- if (in_array($doc_mime, $allowed_mime_types)) {
- $file_title = $row['title'];
- $file_content = self::get_text_content($doc_path, $doc_mime);
- $course_code = Database::escape_string($course_code);
- require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
- require_once api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php';
- $ic_slide = new IndexableChunk();
- $ic_slide->addValue('title', $file_title);
- $ic_slide->addCourseId($course_code);
- $ic_slide->addToolId(TOOL_DOCUMENT);
- $xapian_data = array(
- SE_COURSE_ID => $course_code,
- SE_TOOL_ID => TOOL_DOCUMENT,
- SE_DATA => array('doc_id' => $docid),
- SE_USER => api_get_user_id(),
- );
- $ic_slide->xapian_data = serialize($xapian_data);
- $di = new ChamiloIndexer();
- $return = $di->connectDb(null, null, $lang);
- require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
- $specific_fields = get_specific_field_list();
- // process different depending on what to do if file exists
- /**
- * @TODO Find a way to really verify if the file had been
- * overwriten. Now all work is done at
- * handle_uploaded_document() and it's difficult to verify it
- */
- if (!empty($if_exists) && $if_exists == 'overwrite') {
- // Overwrite the file on search engine
- // Actually, it consists on a delete of terms from db,
- // insert new ones, create a new search engine document,
- // and remove the old one
- // Get search_did
- $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
- $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
- $sql = sprintf($sql, $tbl_se_ref, $course_code, TOOL_DOCUMENT, $docid);
- $res = Database::query($sql);
- if (Database::num_rows($res) > 0) {
- $se_ref = Database::fetch_array($res);
- if (!$simulation) {
- $di->remove_document($se_ref['search_did']);
- }
- $all_specific_terms = '';
- foreach ($specific_fields as $specific_field) {
- if (!$simulation) {
- delete_all_specific_field_value($course_code, $specific_field['id'], TOOL_DOCUMENT, $docid);
- }
- // Update search engine
- if (isset($specific_fields_values[$specific_field['code']])) {
- $sterms = trim($specific_fields_values[$specific_field['code']]);
- } else { //if the specific field is not defined, force an empty one
- $sterms = '';
- }
- $all_specific_terms .= ' ' . $sterms;
- $sterms = explode(',', $sterms);
- foreach ($sterms as $sterm) {
- $sterm = trim($sterm);
- if (!empty($sterm)) {
- $ic_slide->addTerm($sterm, $specific_field['code']);
- // updated the last param here from $value to $sterm without being sure - see commit15464
- if (!$simulation) {
- add_specific_field_value($specific_field['id'], $course_code, TOOL_DOCUMENT, $docid, $sterm);
- }
- }
- }
- }
- // Add terms also to content to make terms findable by probabilistic search
- $file_content = $all_specific_terms . ' ' . $file_content;
- if (!$simulation) {
- $ic_slide->addValue('content', $file_content);
- $di->addChunk($ic_slide);
- // Index and return a new search engine document id
- $did = $di->index();
- if ($did) {
- // update the search_did on db
- $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
- $sql = 'UPDATE %s SET search_did=%d WHERE id=%d LIMIT 1';
- $sql = sprintf($sql, $tbl_se_ref, (int) $did, (int) $se_ref['id']);
- Database::query($sql);
- }
- }
- }
- } else {
- // Add all terms
- $all_specific_terms = '';
- foreach ($specific_fields as $specific_field) {
- if (isset($specific_fields_values[$specific_field['code']])) {
- $sterms = trim($specific_fields_values[$specific_field['code']]);
- } else { //if the specific field is not defined, force an empty one
- $sterms = '';
- }
- $all_specific_terms .= ' ' . $sterms;
- if (!empty($sterms)) {
- $sterms = explode(',', $sterms);
- foreach ($sterms as $sterm) {
- if (!$simulation) {
- $ic_slide->addTerm(trim($sterm), $specific_field['code']);
- add_specific_field_value($specific_field['id'], $course_code, TOOL_DOCUMENT, $docid, $sterm);
- }
- }
- }
- }
- // Add terms also to content to make terms findable by probabilistic search
- $file_content = $all_specific_terms . ' ' . $file_content;
- if (!$simulation) {
- $ic_slide->addValue('content', $file_content);
- $di->addChunk($ic_slide);
- // Index and return search engine document id
- $did = $di->index();
- if ($did) {
- // Save it to db
- $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
- $sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
- VALUES (NULL , \'%s\', \'%s\', %s, %s)';
- $sql = sprintf($sql, $tbl_se_ref, $course_code, TOOL_DOCUMENT, $docid, $did);
- Database::query($sql);
- } else {
- return false;
- }
- }
- }
- } else {
- return false;
- }
- }
- return true;
- }
- /**
- * @return array
- */
- public static function get_web_odf_extension_list()
- {
- return array('ods', 'odt', 'odp');
- }
- /**
- * @param string $path
- * @param bool $is_certificate_mode
- * @return bool
- */
- public static function is_folder_to_avoid($path, $is_certificate_mode = false)
- {
- $foldersToAvoid = array(
- '/HotPotatoes_files',
- '/certificates',
- );
- $systemFolder = api_get_course_setting('show_system_folders');
- if ($systemFolder == 1) {
- $foldersToAvoid = array();
- }
- if (basename($path) == 'css') {
- return true;
- }
- if ($is_certificate_mode == false) {
- //Certificate results
- if (strstr($path, 'certificates')) {
- return true;
- }
- }
- // Admin setting for Hide/Show the folders of all users
- if (api_get_setting('show_users_folders') == 'false') {
- $foldersToAvoid[] = '/shared_folder';
- if (strstr($path, 'shared_folder_session_')) {
- return true;
- }
- }
- // Admin setting for Hide/Show Default folders to all users
- if (api_get_setting('show_default_folders') == 'false') {
- $foldersToAvoid[] = '/images';
- $foldersToAvoid[] = '/flash';
- $foldersToAvoid[] = '/audio';
- $foldersToAvoid[] = '/video';
- }
- // Admin setting for Hide/Show chat history folder
- if (api_get_setting('show_chat_folder') == 'false') {
- $foldersToAvoid[] = '/chat_files';
- }
- return in_array($path, $foldersToAvoid);
- }
- /**
- * @return array
- */
- static function get_system_folders()
- {
- $system_folders = array(
- '/certificates',
- '/HotPotatoes_files',
- '/chat_files',
- '/images',
- '/flash',
- '/audio',
- '/video',
- '/shared_folder',
- '/learning_path'
- );
- return $system_folders;
- }
- /**
- * @param string $courseCode
- * @return string 'visible' or 'invisible' string
- */
- public static function getDocumentDefaultVisibility($courseCode)
- {
- $settings = api_get_setting('tool_visible_by_default_at_creation');
- $defaultVisibility = 'visible';
- if (isset($settings['documents'])) {
- $portalDefaultVisibility = 'invisible';
- if ($settings['documents'] == 'true') {
- $portalDefaultVisibility = 'visible';
- }
- $defaultVisibility = $portalDefaultVisibility;
- }
- if (api_get_setting('documents_default_visibility_defined_in_course') == 'true') {
- $courseVisibility = api_get_course_setting('documents_default_visibility', $courseCode);
- if (!empty($courseVisibility) && in_array($courseVisibility, array('visible', 'invisible'))) {
- $defaultVisibility = $courseVisibility;
- }
- }
- return $defaultVisibility;
- }
- /**
- * @param array $courseInfo
- * @param int $id doc id
- * @param string $visibility visible/invisible
- * @param int $userId
- */
- public static function updateVisibilityFromAllSessions($courseInfo, $id, $visibility, $userId)
- {
- $sessionList = SessionManager::get_session_by_course($courseInfo['code']);
- if (!empty($sessionList)) {
- foreach ($sessionList as $session) {
- $sessionId = $session['id'];
- api_item_property_update(
- $courseInfo,
- TOOL_DOCUMENT,
- $id,
- $visibility,
- $userId,
- null,
- null,
- null,
- null,
- $sessionId
- );
- }
- }
- }
- /**
- * @param string $file
- * @return string
- */
- public static function readNanogongFile($file)
- {
- $nanoGongJarFile = api_get_path(WEB_LIBRARY_PATH).'nanogong/nanogong.jar';
- $html = '<applet id="applet" archive="'.$nanoGongJarFile.'" code="gong.NanoGong" width="160" height="95">';
- $html .= '<param name="SoundFileURL" value="'.$file.'" />';
- $html .= '<param name="ShowSaveButton" value="false" />';
- $html .= '<param name="ShowTime" value="true" />';
- $html .= '<param name="ShowRecordButton" value="false" />';
- $html .= '</applet>';
- return $html;
- }
- /**
- * @param string $filePath
- * @param string $path
- * @param $courseInfo
- * @param string $whatIfFileExists overwrite|rename
- * @param null $userId
- * @param null $groupId
- * @param null $toUserId
- * @return bool|path
- */
- public static function addFileToDocumentTool(
- $filePath,
- $path,
- $courseInfo,
- $userId,
- $whatIfFileExists = 'overwrite',
- $groupId = null,
- $toUserId = null
- ) {
- if (!file_exists($filePath)) {
- return false;
- }
- $fileInfo = pathinfo($filePath);
- $file = array(
- 'name' => $fileInfo['basename'],
- 'tmp_name' => $filePath,
- 'size' => filesize($filePath),
- 'from_file' => true
- );
- $course_dir = $courseInfo['path'].'/document';
- $baseWorkDir = api_get_path(SYS_COURSE_PATH).$course_dir;
- $filePath = handle_uploaded_document(
- $courseInfo,
- $file,
- $baseWorkDir,
- $path,
- $userId,
- $groupId,
- $toUserId,
- false,
- $whatIfFileExists,
- false
- );
- if ($filePath) {
- return DocumentManager::get_document_id($courseInfo, $filePath);
- }
- return false;
- }
- /**
- * Converts wav to mp3 file.
- * Requires the ffmpeg lib. In ubuntu: sudo apt-get install ffmpeg
- * @param string $wavFile
- * @param bool $removeWavFileIfSuccess
- * @return bool
- */
- public static function convertWavToMp3($wavFile, $removeWavFileIfSuccess = false)
- {
- require_once '../../../../vendor/autoload.php';
- if (file_exists($wavFile)) {
- try {
- $ffmpeg = \FFMpeg\FFMpeg::create();
- $video = $ffmpeg->open($wavFile);
- $mp3File = str_replace('wav', 'mp3', $wavFile);
- $result = $video->save(new FFMpeg\Format\Audio\Mp3(), $mp3File);
- if ($result && $removeWavFileIfSuccess) {
- unlink($wavFile);
- }
- if (file_exists($mp3File)) {
- return $mp3File;
- }
- } catch (Exception $e) {
- }
- }
- return false;
- }
- /**
- * @param string $documentData
- * @param array $courseInfo
- * @param string $whatIfFileExists
- * @return bool|path
- */
- public static function addAndConvertWavToMp3($documentData, $courseInfo, $userId, $whatIfFileExists = 'overwrite')
- {
- if (empty($documentData)) {
- return false;
- }
- if (isset($documentData['absolute_path']) && file_exists($documentData['absolute_path'])) {
- $mp3FilePath = self::convertWavToMp3($documentData['absolute_path']);
- //$mp3FilePath = str_replace('wav', 'mp3', $documentData['absolute_path']);
- if (!empty($mp3FilePath)) {
- $documentId = self::addFileToDocumentTool(
- $mp3FilePath,
- dirname($documentData['path']),
- $courseInfo,
- $userId,
- $whatIfFileExists
- );
- if (!empty($documentId)) {
- return $documentId;
- }
- }
- }
- return false;
- }
- /**
- * @param string $file ($document_data['path'])
- * @param string $file_url_sys
- * @return string
- */
- public static function generateAudioTempFile($file, $file_url_sys)
- {
- //make temp audio
- $temp_folder = api_get_path(SYS_ARCHIVE_PATH).'temp/audio';
- if (!file_exists($temp_folder)) {
- @mkdir($temp_folder, api_get_permissions_for_new_directories(), true);
- }
- //make htaccess with allow from all, and file index.html into temp/audio
- $htaccess = api_get_path(SYS_ARCHIVE_PATH).'temp/audio/.htaccess';
- if (!file_exists($htaccess)) {
- $htaccess_content="order deny,allow\r\nallow from all\r\nOptions -Indexes";
- $fp = @ fopen(api_get_path(SYS_ARCHIVE_PATH).'temp/audio/.htaccess', 'w');
- if ($fp) {
- fwrite($fp, $htaccess_content);
- fclose($fp);
- }
- }
- //encript temp name file
- $name_crip = sha1(uniqid());//encript
- $findext= explode(".", $file);
- $extension = $findext[count($findext)-1];
- $file_crip = $name_crip.'.'.$extension;
- //copy file to temp/audio directory
- $from_sys = $file_url_sys;
- $to_sys = api_get_path(SYS_ARCHIVE_PATH).'temp/audio/'.$file_crip;
- if (file_exists($from_sys)) {
- copy($from_sys, $to_sys);
- }
- //get file from tmp directory
- $_SESSION['temp_audio_nanogong'] = $to_sys;
- return api_get_path(WEB_ARCHIVE_PATH).'temp/audio/'.$file_crip;
- }
- /**
- * Erase temp nanogons' audio, image edit
- */
- public static function removeGeneratedAudioTempFile()
- {
- if (isset($_SESSION['temp_audio_nanogong'])
- && !empty($_SESSION['temp_audio_nanogong'])
- && is_file($_SESSION['temp_audio_nanogong'])) {
- unlink($_SESSION['temp_audio_nanogong']);
- unset($_SESSION['temp_audio_nanogong']);
- }
- }
- }
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