e49b29a2d1
to log in. We need to strip these chars before creating the prefs file, because of course a slash in the name gives problems. It may be possible to strip out other 'illegal' chars here aswell. Closes (#745814).
124 lines
3.7 KiB
PHP
124 lines
3.7 KiB
PHP
<?php
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/**
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* prefs.php
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*
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* Copyright (c) 1999-2003 The SquirrelMail Project Team
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* Licensed under the GNU GPL. For full terms see the file COPYING.
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*
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* This contains functions for manipulating user preferences
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*
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* $Id$
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*/
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require_once(SM_PATH . 'functions/global.php');
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sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION );
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sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION );
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$rg = ini_get('register_globals');
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/* if php version >= 4.1 OR (4.0 AND $rg = off) */
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if ( !sqsession_is_registered('prefs_are_cached') ||
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!isset( $prefs_cache) ||
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!is_array( $prefs_cache) ||
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check_php_version(4,1) ||
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empty($rg)
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) {
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$prefs_are_cached = false;
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$prefs_cache = array();
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}
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if (isset($prefs_dsn) && !empty($prefs_dsn)) {
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require_once(SM_PATH . 'functions/db_prefs.php');
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} else {
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require_once(SM_PATH . 'functions/file_prefs.php');
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}
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/* Hashing functions */
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function getHashedFile($username, $dir, $datafile, $hash_search = true) {
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global $dir_hash_level;
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/* Remove trailing slash from $dir if found */
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if (substr($dir, -1) == '/') {
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$dir = substr($dir, 0, strlen($dir) - 1);
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}
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/* Compute the hash for this user and extract the hash directories. */
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$hash_dirs = computeHashDirs($username);
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/* First, get and make sure the full hash directory exists. */
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$real_hash_dir = getHashedDir($username, $dir, $hash_dirs);
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/* Set the value of our real data file, after we've removed unwanted characters. */
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$datafile = str_replace('/', '_', $datafile);
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$result = "$real_hash_dir/$datafile";
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/* Check for this file in the real hash directory. */
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if ($hash_search && !@file_exists($result)) {
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/* First check the base directory, the most common location. */
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if (@file_exists("$dir/$datafile")) {
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rename("$dir/$datafile", $result);
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/* Then check the full range of possible hash directories. */
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} else {
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$check_hash_dir = $dir;
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for ($h = 0; $h < 4; ++$h) {
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$check_hash_dir .= '/' . $hash_dirs[$h];
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if (@is_readable("$check_hash_dir/$datafile")) {
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rename("$check_hash_dir/$datafile", $result);
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break;
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}
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}
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}
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}
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/* Return the full hashed datafile path. */
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return ($result);
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}
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function getHashedDir($username, $dir, $hash_dirs = '') {
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global $dir_hash_level;
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/* Remove trailing slash from $dir if found */
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if (substr($dir, -1) == '/') {
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$dir = substr($dir, 0, strlen($dir) - 1);
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}
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/* If necessary, populate the hash dir variable. */
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if ($hash_dirs == '') {
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$hash_dirs = computeHashDirs($username);
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}
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/* Make sure the full hash directory exists. */
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$real_hash_dir = $dir;
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for ($h = 0; $h < $dir_hash_level; ++$h) {
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$real_hash_dir .= '/' . $hash_dirs[$h];
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if (!@is_dir($real_hash_dir)) {
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if (!@mkdir($real_hash_dir, 0770)) {
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echo sprintf(_("Error creating directory %s."), $real_hash_dir) . '<br>' .
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_("Could not create hashed directory structure!") . "<br>\n" .
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_("Please contact your system administrator and report this error.") . "<br>\n";
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exit;
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}
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}
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}
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/* And return that directory. */
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return ($real_hash_dir);
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}
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function computeHashDirs($username) {
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/* Compute the hash for this user and extract the hash directories. */
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$hash = base_convert(crc32($username), 10, 16);
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$hash_dirs = array();
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for ($h = 0; $h < 4; ++ $h) {
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$hash_dirs[] = substr($hash, $h, 1);
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}
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/* Return our array of hash directories. */
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return ($hash_dirs);
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}
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?>
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