Source for file prefs.php
Documentation is available at prefs.php
* This contains functions for filebased user prefs locations
* @copyright 1999-2020 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id: prefs.php 14845 2020-01-07 08:09:34Z pdontthink $
* Given a username and datafilename, this will return the path to the
* hashed location of that datafile.
* @param string username the username of the current user
* @param string dir the SquirrelMail datadir
* @param string datafile the name of the file to open
* @param bool hash_seach default true
* @return string the hashed location of datafile
function getHashedFile($username, $dir, $datafile, $hash_search =
true) {
/* Remove trailing slash from $dir if found */
if (substr($dir, -
1) ==
'/') {
/* Compute the hash for this user and extract the hash directories. */
/* First, get and make sure the full hash directory exists. */
/* Set the value of our real data file, after we've removed unwanted characters. */
$result =
"$real_hash_dir/$datafile";
/* Check for this file in the real hash directory. */
/* First check the base directory, the most common location. */
rename("$dir/$datafile", $result);
/* Then check the full range of possible hash directories. */
for ($h =
0; $h <
4; ++
$h) {
$check_hash_dir .=
'/' .
$hash_dirs[$h];
rename("$check_hash_dir/$datafile", $result);
/* Return the full hashed datafile path. */
* Helper function for getHashedFile, given a username returns the hashed
* @param string username the username of the current user
* @param string dir the SquirrelMail datadir
* @param string hash_dirs default ''
* @return the path to the hash dir for username
/* Remove trailing slash from $dir if found */
if (substr($dir, -
1) ==
'/') {
/* If necessary, populate the hash dir variable. */
/* Make sure the full hash directory exists. */
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)) {
_("Could not create hashed directory structure!") .
"\n" .
_("Please contact your system administrator and report this error.") );
/* And return that directory. */
* 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
* $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
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($username, '@'));
// have we already calculated it?
if (!empty($hash_dirs[$user]))
return $hash_dirs[$user];
if ($hash_dirs_use_md5) {
/* Compute the hash for this user and extract the hash directories. */
/* Note that the crc32() function result will be different on 32 and */
/* 64 bit systems, thus the hack below. */
for ($h =
0; $h <
4; ++
$h) {
$my_hash_dirs[] =
substr($hash, $h, 1);
// Return our array of hash directories
$hash_dirs[$user] =
$my_hash_dirs;
Documentation generated on Mon, 13 Jan 2020 04:23:23 +0100 by phpDocumentor 1.4.3