4.3, * but this doesn't work as it should on Windows installations * * @param string $filename or boolean TRUE to return complete array * @author ? first version * @author Bert Vanderkimpen * */ function file_get_mime_type($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", "dvi" => "application/x-dvi", "dwg" => "application/vnd.dwg", "dxf" => "application/vnd.dxf", "dxr" => "application/x-director", "eps" => "application/postscript", "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", "latex" => "application/x-latex", "lha" => "application/octet-stream", "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", "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", "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", "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" => "video/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", "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"; } /** * @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?? */ function file_visible_to_user($this_course, $doc_url) { if (api_is_allowed_to_edit()) { return true; } else { $tbl_document = Database::get_course_table(TABLE_DOCUMENT); $tbl_item_property = $this_course.'item_property'; //$doc_url = addslashes($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'"; //echo $query; $result = api_sql_query($query, __FILE__, __LINE__); return (mysql_num_rows($result) == 0); } } /** * This function streams a file to the client * * @param string $full_file_name * @param boolean $forced * @param string $name * @return false if file doesn't exist, true if stream succeeded */ function file_send_for_download($full_file_name, $forced = false, $name = '') { if (!is_file($full_file_name)) { return false; } $filename = ($name == '') ? basename($full_file_name) : $name; $len = filesize($full_file_name); 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_file_name, 'r'); fpassthru($fp); return true; } else { //no forced download, just let the browser decide what to do according to the mimetype $content_type = DocumentManager :: file_get_mime_type($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'); 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 */ 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 $content_type = DocumentManager :: file_get_mime_type($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'); 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; } } /** * 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 $can_see_invisible * @return array with all document data */ function get_all_document_data($_course, $path = '/', $to_group_id = 0, $to_user_id = NULL, $can_see_invisible = false) { $TABLE_ITEMPROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY, $_course['dbName']); $TABLE_DOCUMENT = Database :: get_course_table(TABLE_DOCUMENT, $_course['dbName']); //if to_user_id = NULL -> change query (IS NULL) //$to_user_id = (is_null($to_user_id))?'IS NULL':'= '.$to_user_id; 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 $path = str_replace('_', '\_', $path); //if they can't see invisible files, they can only see files with visibility 1 $visibility_bit = ' = 1'; //if they can see invisible files, only deleted files (visibility 2) are filtered out if ($can_see_invisible) { $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 == '/') ? '' : '/'; $sql = "SELECT * FROM ".$TABLE_ITEMPROPERTY." AS last, ".$TABLE_DOCUMENT." AS docs WHERE docs.id = last.ref AND docs.path LIKE '".$path.$added_slash."%' AND docs.path NOT LIKE '".$path.$added_slash."%/%' AND last.tool = '".TOOL_DOCUMENT."' AND ".$to_field." = ".$to_value." AND last.visibility".$visibility_bit; //echo $sql; $result = mysql_query($sql); if ($result && mysql_num_rows($result) != 0) { while ($row = mysql_fetch_assoc($result)) //while ($row = mysql_fetch_array($result,MYSQL_NUM)) { if($row['filetype']=='file' && pathinfo($row['path'],PATHINFO_EXTENSION)=='html'){ //Templates management $table_template = Database::get_main_table(TABLE_MAIN_TEMPLATES); $sql_is_template = 'SELECT id FROM '.$table_template.' WHERE course_code="'.$_course['id'].'" AND user_id="'.api_get_user_id().'" AND ref_doc="'.$row['id'].'" '; $template_result = api_sql_query($sql_is_template); if(mysql_numrows($template_result)>0){ $row['is_template'] = 1; } else{ $row['is_template'] = 0; } } $document_data[$row['id']] = $row; //$document_data[] = $row; } return $document_data; } else { //display_error("Error getting document info from database (".mysql_error().")!"); return false; } } /** * Gets the paths of all folders in a course * can show all folders (exept for the deleted ones) or only visible ones * @param array $_course * @param boolean $can_see_invisible * @param int $to_group_id * @return array with paths */ function get_all_document_folders($_course, $to_group_id = '0', $can_see_invisible = false) { $TABLE_ITEMPROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY, $_course['dbName']); $TABLE_DOCUMENT = Database :: get_course_table(TABLE_DOCUMENT, $_course['dbName']); if(empty($to_group_id)){$to_group_id = '0';} //avoid empty strings in $to_group_id if ($can_see_invisible) { $sql = "SELECT path FROM ".$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 <> 2"; $result = api_sql_query($sql, __FILE__, __LINE__); if ($result && mysql_num_rows($result) != 0) { while ($row = mysql_fetch_assoc($result)) { $document_folders[] = $row['path']; } sort($document_folders, SORT_ASC); //return results return $document_folders; } else { return false; } } //no invisible folders else { //get visible folders $visible_sql = "SELECT path FROM ".$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"; $visibleresult = api_sql_query($visible_sql, __FILE__, __LINE__); while ($all_visible_folders = mysql_fetch_assoc($visibleresult)) { $visiblefolders[] = $all_visible_folders['path']; //echo "visible folders: ".$all_visible_folders['path']."
"; } //get invisible folders $invisible_sql = "SELECT path FROM ".$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"; $invisibleresult = api_sql_query($invisible_sql, __FILE__, __LINE__); while ($invisible_folders = mysql_fetch_assoc($invisibleresult)) { //get visible folders in the invisible ones -> they are invisible too //echo "invisible folders: ".$invisible_folders['path']."
"; $folder_in_invisible_sql = "SELECT path FROM ".$TABLE_ITEMPROPERTY." AS last, ".$TABLE_DOCUMENT." AS docs WHERE docs.id = last.ref AND docs.path LIKE '".mysql_real_escape_string($invisible_folders['path'])."/%' AND docs.filetype = 'folder' AND last.tool = '".TOOL_DOCUMENT."' AND last.to_group_id = ".$to_group_id." AND last.visibility = 1"; $folder_in_invisible_result = api_sql_query($folder_in_invisible_sql, __FILE__, __LINE__); while ($folders_in_invisible_folder = mysql_fetch_assoc($folder_in_invisible_result)) { $invisiblefolders[] = $folders_in_invisible_folder['path']; //echo "
folders in invisible folders: ".$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, $invisiblefolders); sort($document_folders, SORT_ASC); return $document_folders; } //only visible folders found elseif (is_array($visiblefolders)) { sort($visiblefolders, SORT_ASC); return $visiblefolders; } //no visible folders found else { return false; } } } /** * 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 * @return boolean true/false * @todo now only files/folders in a folder get visibility 2, we should rename them too. */ function delete_document($_course, $path, $base_work_dir) { $TABLE_DOCUMENT = Database :: get_course_table(TABLE_DOCUMENT, $_course['dbName']); $TABLE_ITEMPROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY, $_course['dbName']); //first, delete the actual document... $document_id = DocumentManager :: get_document_id($_course, $path); $new_path = $path.'_DELETED_'.$document_id; if ($document_id) { if (get_setting('permanently_remove_deleted_files') == 'true') //deleted files are *really* deleted { $what_to_delete_sql = "SELECT id FROM ".$TABLE_DOCUMENT." WHERE path='".$path."' OR path LIKE '".$path."/%'"; //get all id's of documents that are deleted $what_to_delete_result = api_sql_query($what_to_delete_sql, __FILE__, __LINE__); if ($what_to_delete_result && mysql_num_rows($what_to_delete_result) != 0) { //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'); $mdStore = new mdstore(TRUE); //delete all item_property entries while ($row = mysql_fetch_array($what_to_delete_result)) { //query to delete from item_property table $remove_from_item_property_sql = "DELETE FROM ".$TABLE_ITEMPROPERTY." WHERE ref = ".$row['id']." AND tool='".TOOL_DOCUMENT."'"; //query to delete from document table $remove_from_document_sql = "DELETE FROM ".$TABLE_DOCUMENT." WHERE id = ".$row['id'].""; //echo($remove_from_item_property_sql.'
'); api_sql_query($remove_from_item_property_sql, __FILE__, __LINE__); //echo($remove_from_document_sql.'
'); api_sql_query($remove_from_document_sql, __FILE__, __LINE__); //delete metadata $eid = 'Document'.'.'.$row['id']; $mdStore->mds_delete($eid); $mdStore->mds_delete_offspring($eid); } //delete documents, do it like this so metadata get's deleted too //update_db_info('delete', $path); //throw it away my_delete($base_work_dir.$path); return true; } else { return false; } } else //set visibility to 2 and rename file/folder to qsdqsd_DELETED_#id { if (api_item_property_update($_course, TOOL_DOCUMENT, $document_id, 'delete', $user_id)) { //echo('item_property_update OK'); if (rename($base_work_dir.$path, $base_work_dir.$new_path)) { //echo('rename OK'); $sql = "UPDATE $TABLE_DOCUMENT set path='".$new_path."' WHERE id='".$document_id."'"; if (api_sql_query($sql, __FILE__, __LINE__)) { //if it is a folder it can contain files $sql = "SELECT id,path FROM ".$TABLE_DOCUMENT." WHERE path LIKE '".$path."/%'"; $result = api_sql_query($sql, __FILE__, __LINE__); if ($result && mysql_num_rows($result) > 0) { while ($deleted_items = mysql_fetch_assoc($result)) { //echo('to delete also: id '.$deleted_items['id']); api_item_property_update($_course, TOOL_DOCUMENT, $deleted_items['id'], 'delete', $user_id); //Change path of subfolders and documents in database $old_item_path = $deleted_items['path']; $new_item_path = $new_path.substr($old_item_path, strlen($path)); $sql = "UPDATE $TABLE_DOCUMENT set path = '".$new_item_path."' WHERE id = ".$deleted_items['id']; api_sql_query($sql, __FILE__, __LINE__); } } //echo('dbase update OK'); return true; } } } else { return false; } } } } /** * Gets the id of a document with a given path * * @param array $_course * @param string $path * @return int id of document / false if no doc found */ function get_document_id($_course, $path) { $TABLE_DOCUMENT = Database :: get_course_table(TABLE_DOCUMENT, $_course['dbName']); $sql = "SELECT id FROM $TABLE_DOCUMENT WHERE path = '$path'"; $result = api_sql_query($sql, __FILE__, __LINE__); if ($result && mysql_num_rows($result) == 1) { $row = mysql_fetch_row($result); return $row[0]; } else { 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 $couse_code * @param int $user_id */ function set_document_as_template($title, $description, $document_id_for_template, $couse_code, $user_id){ $table_template = Database::get_main_table(TABLE_MAIN_TEMPLATES); $title = Database::escape_string($title); $description = Database::escape_string($description); $document_id_for_template = Database::escape_string($document_id_for_template); $couse_code = Database::escape_string($couse_code); $user_id = Database::escape_string($user_id); $sql = 'INSERT INTO '.$table_template.'(title, description, course_code, user_id, ref_doc) VALUES ("'.$title.'", "'.$description.'", "'.$couse_code.'", "'.$user_id.'", "'.$document_id_for_template.'")'; api_sql_query($sql); } /** * Unset a document as template * * @param int $document_id * @param string $couse_code * @param int $user_id */ function unset_document_as_template($document_id, $couse_code, $user_id){ $table_template = Database::get_main_table(TABLE_MAIN_TEMPLATES); $sql = 'SELECT id FROM '.$table_template.' WHERE course_code="'.$couse_code.'" AND user_id="'.$user_id.'" AND ref_doc="'.$document_id.'"'; $result = api_sql_query($sql); $template_id = mysql_result($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="'.$couse_code.'" AND user_id="'.$user_id.'" AND ref_doc="'.$document_id.'"'; api_sql_query($sql); } } //end class DocumentManager ?>