/**
* Checks if the given directory and all contained files within it is writable by the current user.
* @param string $dir The directory to check
*/
function is_writable_recursive($dir)
{
if (!is_writable($dir)) {
throw new \Exception($dir . " is not writable.");
}
$folder = opendir($dir);
while ($file = readdir($folder)) {
if ($file != '.' && $file != '..') {
if (!is_writable($dir . "/" . $file)) {
closedir($folder);
throw new \Exception($dir . "/" . $file . " is not writable.");
} else {
if (is_dir($dir . "/" . $file)) {
if (!is_writable_recursive($dir . "/" . $file)) {
closedir($folder);
throw new \Exception($dir . "/" . $file . " is not writable.");
}
}
}
}
}
return true;
}
/**
* check if file or directory exists and is writeable, returns via parameters by reference
*
* @param string $path file or directory to check
* @param int $type 0:undefined (invalid), 1:file, 2:directory
* @param string $data to manipulate
* @param string $base key for data manipulation
* @param string $keyError key for error data
* @return bool result of check (that it is writeable which implies existance)
*/
function check_PathWriteable($path, $type, &$data, $base, $keyError, $bRecursive = false)
{
$result = false;
$data[$base . 'Present'] = 'Not Found';
$data[$base . 'Writable'] = '';
switch ($type) {
case 1:
$exists = is_file($path);
break;
case 2:
$exists = is_dir($path);
break;
default:
throw new Exception('Invalid type given.');
}
if ($exists) {
$data[$base . 'Present'] = 'Found';
if (!$bRecursive && is_writable($path) || $bRecursive && is_writable_recursive($path)) {
$data[$base . 'Writable'] = 'Writable';
$result = true;
} else {
$data[$base . 'Writable'] = 'Unwritable';
}
}
$result || ($data[$keyError] = true);
return $result;
}
