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<?php
// Is the file uploaded truly a file via HTTP POST - used to thwart a user from trying to trick the script from working on other files
//
// arg0: string filename
// returns boolean is the uploaded a file
function is_uploaded_file_v4 ($filename) {
if (!$tmp_file = get_cfg_var('upload_tmp_dir')) {
$tmp_file = dirname(tempnam('', ''));
}
$tmp_file .= '/' . basename($filename);
// For Windows compat
$filename = str_replace ("\\", "/", $filename);
$tmp_file = str_replace ("\\", "/", $tmp_file);
// User might have trailing slash in php.ini...
return (ereg_replace('/+', '/', $tmp_file) == $filename);
}
// return the appropriate error message if the file upload had an error
//
// arg0: array file array from $HTTP_POST_FILES
// returns string error message
function get_upload_error ($uploaded_file) {
global $php_error_lang;
global $upload_error_lang;
global $upload_error_gen_lang;
if (isset($uploaded_file['error'])) {
// This is only available in PHP >= 4.2.0
$error = $php_error_lang . " ";
switch($uploaded_file['error']) {
case 0: //no error; possible file attack!
case 1: //uploaded file exceeds the upload_max_filesize directive in php.ini
case 2: //uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the html form
case 3: //uploaded file was only partially uploaded
case 4: //no file was uploaded
$error = $error . $uploaded_file['error'] . ": " . $upload_error_lang[$uploaded_file['error']];
break;
default: //a default error, just in case! :)
$error = $error . $uploaded_file['error'] . ": " . $upload_error_gen_lang;
break;
}
}
else {
$error = $upload_error_gen_lang;
}
return $error;
}
// Check to see that the file has an .ics extension
//
// arg0: string filename
// returns booloean does the filename end in .ics
function is_uploaded_ics ($filename) {
// Check the file extension for .ics. Can also check the the mime type, but it's not reliable so why bother...
if(preg_match("/.ics$/i", $filename)) {
return TRUE;
}
else {
return FALSE;
}
}
// Get all calendar filenames (not including path)
//
// argo: string path to calendar files
// returns array filenames (not including path)
function get_calendar_files($calendar_path) {
global $error_path_lang;
$dir_handle = @opendir($calendar_path) or die(error(sprintf($error_path_lang, $calendar_path)));
$filelist = array();
while ($file = readdir($dir_handle)) {
if (substr($file, -4) == ".ics") {
array_push($filelist, $file);
}
}
closedir($dir_handle);
natcasesort($filelist);
return $filelist;
}
?>
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