-function getSig($data_dir, $username) {
- $db = new dbPrefs;
- if(isset($db->error)) {
- $db->failQuery();
- }
-
- return $db->getKey($username, '___signature___');
-}
-
-/* Hashing functions */
-
-function getHashedFile($username, $dir, $datafile, $hash_search = true) {
- global $dir_hash_level;
-
- /* Remove trailing slash from $dir if found */
- if (substr($dir, -1) == '/') {
- $dir = substr($dir, 0, strlen($dir) - 1);
- }
-
- /* Compute the hash for this user and extract the hash directories. */
- $hash_dirs = computeHashDirs($username);
-
- /* First, get and make sure the full hash directory exists. */
- $real_hash_dir = getHashedDir($username, $dir, $hash_dirs);
-
- /* Set the value of our real data file. */
- $result = "$real_hash_dir/$datafile";
-
- /* Check for this file in the real hash directory. */
- if ($hash_search && !@file_exists($result)) {
- /* First check the base directory, the most common location. */
- if (@file_exists("$dir/$datafile")) {
- rename("$dir/$datafile", $result);
-
- /* Then check the full range of possible hash directories. */
- } else {
- $check_hash_dir = $dir;
- for ($h = 0; $h < 4; ++$h) {
- $check_hash_dir .= '/' . $hash_dirs[$h];
- if (@is_readable("$check_hash_dir/$datafile")) {
- rename("$check_hash_dir/$datafile", $result);
- break;
- }
- }
- }
- }
-
- /* Return the full hashed datafile path. */
- return ($result);
-}
-
-function getHashedDir($username, $dir, $hash_dirs = '') {
- global $dir_hash_level;
-
- /* Remove trailing slash from $dir if found */
- if (substr($dir, -1) == '/') {
- $dir = substr($dir, 0, strlen($dir) - 1);
- }
-
- /* If necessary, populate the hash dir variable. */
- if ($hash_dirs == '') {
- $hash_dirs = computeHashDirs($username);
- }
-
- /* Make sure the full hash directory exists. */
- $real_hash_dir = $dir;
- for ($h = 0; $h < $dir_hash_level; ++$h) {
- $real_hash_dir .= '/' . $hash_dirs[$h];
- if (!@is_dir($real_hash_dir)) {
- if (!@mkdir($real_hash_dir, 0770)) {
- echo sprintf(_("Error creating directory %s."), $real_hash_dir) . '<br>';
- echo _("Could not create hashed directory structure!") . "<br>\n";
- echo _("Please contact your system administrator and report this error.") . "<br>\n";
- exit;
- }
- }
- }
-
- /* And return that directory. */
- return ($real_hash_dir);
-}
-
-function computeHashDirs($username) {
- /* Compute the hash for this user and extract the hash directories. */
- $hash = base_convert(crc32($username), 10, 16);
- $hash_dirs = array();
- for ($h = 0; $h < 4; ++ $h) {
- $hash_dirs[] = substr($hash, $h, 1);