*
* This contains functions for filebased user prefs locations
*
- * @copyright © 1999-2007 The SquirrelMail Project Team
+ * @copyright 1999-2018 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id$
* @package squirrelmail
for ($h = 0; $h < $dir_hash_level; ++$h) {
$real_hash_dir .= '/' . $hash_dirs[$h];
if (!@is_dir($real_hash_dir)) {
+//FIXME: When safe_mode is turned on, the error suppression below makes debugging safe_mode UID/GID restrictions tricky... for now, I will add a check in configtest
if (!@mkdir($real_hash_dir, 0770)) {
- echo sprintf(_("Error creating directory %s."), $real_hash_dir) . '<br />' .
- _("Could not create hashed directory structure!") . "<br />\n" .
- _("Please contact your system administrator and report this error.") . "<br />\n";
+ error_box ( sprintf(_("Error creating directory %s."), $real_hash_dir) . "\n" .
+ _("Could not create hashed directory structure!") . "\n" .
+ _("Please contact your system administrator and report this error.") );
exit;
}
}
/**
* Helper function for getHashDir which does the actual hash calculation.
*
+ * Uses a crc32 algorithm by default, but if you put
+ * the following in config/config_local.php, you can
+ * force md5 instead:
+ * $hash_dirs_use_md5 = TRUE;
+ *
+ * You may also specify that if usernames are in full
+ * email address format, the domain part (beginning
+ * with "@") be stripped before calculating the crc
+ * or md5. Do that by putting the following in
+ * config/config_local.php:
+ * $hash_dirs_strip_domain = TRUE;
+ *
* @param string username the username to calculate the hash dir for
+ *
* @return array a list of hash dirs for this username
+ *
* @since 1.2.0
+ *
*/
function computeHashDirs($username) {
- /* Compute the hash for this user and extract the hash directories. */
- $hash = base_convert(crc32($username), 10, 16);
- $hash_dirs = array();
+
+ global $hash_dirs_use_md5, $hash_dirs_strip_domain;
+ static $hash_dirs = array();
+
+
+ // strip domain from username
+ if ($hash_dirs_strip_domain)
+ $user = substr($username, 0, strpos($username, '@'));
+ else
+ $user = $username;
+
+
+ // have we already calculated it?
+ if (!empty($hash_dirs[$user]))
+ return $hash_dirs[$user];
+
+
+ if ($hash_dirs_use_md5) {
+
+ $hash = md5($user);
+ //$hash = md5bin($user);
+
+ } else {
+
+ /* Compute the hash for this user and extract the hash directories. */
+ /* Note that the crc32() function result will be different on 32 and */
+ /* 64 bit systems, thus the hack below. */
+ $crc = crc32($user);
+ if ($crc & 0x80000000) {
+ $crc ^= 0xffffffff;
+ $crc += 1;
+ }
+ $hash = base_convert($crc, 10, 16);
+ }
+
+
+ $my_hash_dirs = array();
for ($h = 0; $h < 4; ++ $h) {
- $hash_dirs[] = substr($hash, $h, 1);
+ $my_hash_dirs[] = substr($hash, $h, 1);
}
- /* Return our array of hash directories. */
- return ($hash_dirs);
+ // Return our array of hash directories
+ $hash_dirs[$user] = $my_hash_dirs;
+ return ($my_hash_dirs);
}
+