619 lines
18 KiB
PHP
619 lines
18 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This file supplies a Memcached store backend for OpenID servers and
|
||
|
|
* consumers.
|
||
|
|
*
|
||
|
|
* PHP versions 4 and 5
|
||
|
|
*
|
||
|
|
* LICENSE: See the COPYING file included in this distribution.
|
||
|
|
*
|
||
|
|
* @package OpenID
|
||
|
|
* @author JanRain, Inc. <openid@janrain.com>
|
||
|
|
* @copyright 2005-2008 Janrain, Inc.
|
||
|
|
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Require base class for creating a new interface.
|
||
|
|
*/
|
||
|
|
require_once 'Auth/OpenID.php';
|
||
|
|
require_once 'Auth/OpenID/Interface.php';
|
||
|
|
require_once 'Auth/OpenID/HMAC.php';
|
||
|
|
require_once 'Auth/OpenID/Nonce.php';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This is a filesystem-based store for OpenID associations and
|
||
|
|
* nonces. This store should be safe for use in concurrent systems on
|
||
|
|
* both windows and unix (excluding NFS filesystems). There are a
|
||
|
|
* couple race conditions in the system, but those failure cases have
|
||
|
|
* been set up in such a way that the worst-case behavior is someone
|
||
|
|
* having to try to log in a second time.
|
||
|
|
*
|
||
|
|
* Most of the methods of this class are implementation details.
|
||
|
|
* People wishing to just use this store need only pay attention to
|
||
|
|
* the constructor.
|
||
|
|
*
|
||
|
|
* @package OpenID
|
||
|
|
*/
|
||
|
|
class Auth_OpenID_FileStore extends Auth_OpenID_OpenIDStore {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initializes a new {@link Auth_OpenID_FileStore}. This
|
||
|
|
* initializes the nonce and association directories, which are
|
||
|
|
* subdirectories of the directory passed in.
|
||
|
|
*
|
||
|
|
* @param string $directory This is the directory to put the store
|
||
|
|
* directories in.
|
||
|
|
*/
|
||
|
|
function Auth_OpenID_FileStore($directory)
|
||
|
|
{
|
||
|
|
if (!Auth_OpenID::ensureDir($directory)) {
|
||
|
|
trigger_error('Not a directory and failed to create: '
|
||
|
|
. $directory, E_USER_ERROR);
|
||
|
|
}
|
||
|
|
$directory = realpath($directory);
|
||
|
|
|
||
|
|
$this->directory = $directory;
|
||
|
|
$this->active = true;
|
||
|
|
|
||
|
|
$this->nonce_dir = $directory . DIRECTORY_SEPARATOR . 'nonces';
|
||
|
|
|
||
|
|
$this->association_dir = $directory . DIRECTORY_SEPARATOR .
|
||
|
|
'associations';
|
||
|
|
|
||
|
|
// Temp dir must be on the same filesystem as the assciations
|
||
|
|
// $directory.
|
||
|
|
$this->temp_dir = $directory . DIRECTORY_SEPARATOR . 'temp';
|
||
|
|
|
||
|
|
$this->max_nonce_age = 6 * 60 * 60; // Six hours, in seconds
|
||
|
|
|
||
|
|
if (!$this->_setup()) {
|
||
|
|
trigger_error('Failed to initialize OpenID file store in ' .
|
||
|
|
$directory, E_USER_ERROR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function destroy()
|
||
|
|
{
|
||
|
|
Auth_OpenID_FileStore::_rmtree($this->directory);
|
||
|
|
$this->active = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Make sure that the directories in which we store our data
|
||
|
|
* exist.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _setup()
|
||
|
|
{
|
||
|
|
return (Auth_OpenID::ensureDir($this->nonce_dir) &&
|
||
|
|
Auth_OpenID::ensureDir($this->association_dir) &&
|
||
|
|
Auth_OpenID::ensureDir($this->temp_dir));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a temporary file on the same filesystem as
|
||
|
|
* $this->association_dir.
|
||
|
|
*
|
||
|
|
* The temporary directory should not be cleaned if there are any
|
||
|
|
* processes using the store. If there is no active process using
|
||
|
|
* the store, it is safe to remove all of the files in the
|
||
|
|
* temporary directory.
|
||
|
|
*
|
||
|
|
* @return array ($fd, $filename)
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _mktemp()
|
||
|
|
{
|
||
|
|
$name = Auth_OpenID_FileStore::_mkstemp($dir = $this->temp_dir);
|
||
|
|
$file_obj = @fopen($name, 'wb');
|
||
|
|
if ($file_obj !== false) {
|
||
|
|
return array($file_obj, $name);
|
||
|
|
} else {
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent($name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function cleanupNonces()
|
||
|
|
{
|
||
|
|
global $Auth_OpenID_SKEW;
|
||
|
|
|
||
|
|
$nonces = Auth_OpenID_FileStore::_listdir($this->nonce_dir);
|
||
|
|
$now = time();
|
||
|
|
|
||
|
|
$removed = 0;
|
||
|
|
// Check all nonces for expiry
|
||
|
|
foreach ($nonces as $nonce_fname) {
|
||
|
|
$base = basename($nonce_fname);
|
||
|
|
$parts = explode('-', $base, 2);
|
||
|
|
$timestamp = $parts[0];
|
||
|
|
$timestamp = intval($timestamp, 16);
|
||
|
|
if (abs($timestamp - $now) > $Auth_OpenID_SKEW) {
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent($nonce_fname);
|
||
|
|
$removed += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $removed;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a unique filename for a given server url and
|
||
|
|
* handle. This implementation does not assume anything about the
|
||
|
|
* format of the handle. The filename that is returned will
|
||
|
|
* contain the domain name from the server URL for ease of human
|
||
|
|
* inspection of the data directory.
|
||
|
|
*
|
||
|
|
* @return string $filename
|
||
|
|
*/
|
||
|
|
function getAssociationFilename($server_url, $handle)
|
||
|
|
{
|
||
|
|
if (!$this->active) {
|
||
|
|
trigger_error("FileStore no longer active", E_USER_ERROR);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($server_url, '://') === false) {
|
||
|
|
trigger_error(sprintf("Bad server URL: %s", $server_url),
|
||
|
|
E_USER_WARNING);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
list($proto, $rest) = explode('://', $server_url, 2);
|
||
|
|
$parts = explode('/', $rest);
|
||
|
|
$domain = Auth_OpenID_FileStore::_filenameEscape($parts[0]);
|
||
|
|
$url_hash = Auth_OpenID_FileStore::_safe64($server_url);
|
||
|
|
if ($handle) {
|
||
|
|
$handle_hash = Auth_OpenID_FileStore::_safe64($handle);
|
||
|
|
} else {
|
||
|
|
$handle_hash = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$filename = sprintf('%s-%s-%s-%s', $proto, $domain, $url_hash,
|
||
|
|
$handle_hash);
|
||
|
|
|
||
|
|
return $this->association_dir. DIRECTORY_SEPARATOR . $filename;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Store an association in the association directory.
|
||
|
|
*/
|
||
|
|
function storeAssociation($server_url, $association)
|
||
|
|
{
|
||
|
|
if (!$this->active) {
|
||
|
|
trigger_error("FileStore no longer active", E_USER_ERROR);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$association_s = $association->serialize();
|
||
|
|
$filename = $this->getAssociationFilename($server_url,
|
||
|
|
$association->handle);
|
||
|
|
list($tmp_file, $tmp) = $this->_mktemp();
|
||
|
|
|
||
|
|
if (!$tmp_file) {
|
||
|
|
trigger_error("_mktemp didn't return a valid file descriptor",
|
||
|
|
E_USER_WARNING);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
fwrite($tmp_file, $association_s);
|
||
|
|
|
||
|
|
fflush($tmp_file);
|
||
|
|
|
||
|
|
fclose($tmp_file);
|
||
|
|
|
||
|
|
if (@rename($tmp, $filename)) {
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
// In case we are running on Windows, try unlinking the
|
||
|
|
// file in case it exists.
|
||
|
|
@unlink($filename);
|
||
|
|
|
||
|
|
// Now the target should not exist. Try renaming again,
|
||
|
|
// giving up if it fails.
|
||
|
|
if (@rename($tmp, $filename)) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If there was an error, don't leave the temporary file
|
||
|
|
// around.
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent($tmp);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve an association. If no handle is specified, return the
|
||
|
|
* association with the most recent issue time.
|
||
|
|
*
|
||
|
|
* @return mixed $association
|
||
|
|
*/
|
||
|
|
function getAssociation($server_url, $handle = null)
|
||
|
|
{
|
||
|
|
if (!$this->active) {
|
||
|
|
trigger_error("FileStore no longer active", E_USER_ERROR);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($handle === null) {
|
||
|
|
$handle = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
// The filename with the empty handle is a prefix of all other
|
||
|
|
// associations for the given server URL.
|
||
|
|
$filename = $this->getAssociationFilename($server_url, $handle);
|
||
|
|
|
||
|
|
if ($handle) {
|
||
|
|
return $this->_getAssociation($filename);
|
||
|
|
} else {
|
||
|
|
$association_files =
|
||
|
|
Auth_OpenID_FileStore::_listdir($this->association_dir);
|
||
|
|
$matching_files = array();
|
||
|
|
|
||
|
|
// strip off the path to do the comparison
|
||
|
|
$name = basename($filename);
|
||
|
|
foreach ($association_files as $association_file) {
|
||
|
|
$base = basename($association_file);
|
||
|
|
if (strpos($base, $name) === 0) {
|
||
|
|
$matching_files[] = $association_file;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$matching_associations = array();
|
||
|
|
// read the matching files and sort by time issued
|
||
|
|
foreach ($matching_files as $full_name) {
|
||
|
|
$association = $this->_getAssociation($full_name);
|
||
|
|
if ($association !== null) {
|
||
|
|
$matching_associations[] = array($association->issued,
|
||
|
|
$association);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$issued = array();
|
||
|
|
$assocs = array();
|
||
|
|
foreach ($matching_associations as $key => $assoc) {
|
||
|
|
$issued[$key] = $assoc[0];
|
||
|
|
$assocs[$key] = $assoc[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
array_multisort($issued, SORT_DESC, $assocs, SORT_DESC,
|
||
|
|
$matching_associations);
|
||
|
|
|
||
|
|
// return the most recently issued one.
|
||
|
|
if ($matching_associations) {
|
||
|
|
list($issued, $assoc) = $matching_associations[0];
|
||
|
|
return $assoc;
|
||
|
|
} else {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _getAssociation($filename)
|
||
|
|
{
|
||
|
|
if (!$this->active) {
|
||
|
|
trigger_error("FileStore no longer active", E_USER_ERROR);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$assoc_file = @fopen($filename, 'rb');
|
||
|
|
|
||
|
|
if ($assoc_file === false) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$assoc_s = fread($assoc_file, filesize($filename));
|
||
|
|
fclose($assoc_file);
|
||
|
|
|
||
|
|
if (!$assoc_s) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$association =
|
||
|
|
Auth_OpenID_Association::deserialize('Auth_OpenID_Association',
|
||
|
|
$assoc_s);
|
||
|
|
|
||
|
|
if (!$association) {
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent($filename);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($association->getExpiresIn() == 0) {
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent($filename);
|
||
|
|
return null;
|
||
|
|
} else {
|
||
|
|
return $association;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Remove an association if it exists. Do nothing if it does not.
|
||
|
|
*
|
||
|
|
* @return bool $success
|
||
|
|
*/
|
||
|
|
function removeAssociation($server_url, $handle)
|
||
|
|
{
|
||
|
|
if (!$this->active) {
|
||
|
|
trigger_error("FileStore no longer active", E_USER_ERROR);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$assoc = $this->getAssociation($server_url, $handle);
|
||
|
|
if ($assoc === null) {
|
||
|
|
return false;
|
||
|
|
} else {
|
||
|
|
$filename = $this->getAssociationFilename($server_url, $handle);
|
||
|
|
return Auth_OpenID_FileStore::_removeIfPresent($filename);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return whether this nonce is present. As a side effect, mark it
|
||
|
|
* as no longer present.
|
||
|
|
*
|
||
|
|
* @return bool $present
|
||
|
|
*/
|
||
|
|
function useNonce($server_url, $timestamp, $salt)
|
||
|
|
{
|
||
|
|
global $Auth_OpenID_SKEW;
|
||
|
|
|
||
|
|
if (!$this->active) {
|
||
|
|
trigger_error("FileStore no longer active", E_USER_ERROR);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( abs($timestamp - time()) > $Auth_OpenID_SKEW ) {
|
||
|
|
return False;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($server_url) {
|
||
|
|
list($proto, $rest) = explode('://', $server_url, 2);
|
||
|
|
} else {
|
||
|
|
$proto = '';
|
||
|
|
$rest = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$parts = explode('/', $rest, 2);
|
||
|
|
$domain = $this->_filenameEscape($parts[0]);
|
||
|
|
$url_hash = $this->_safe64($server_url);
|
||
|
|
$salt_hash = $this->_safe64($salt);
|
||
|
|
|
||
|
|
$filename = sprintf('%08x-%s-%s-%s-%s', $timestamp, $proto,
|
||
|
|
$domain, $url_hash, $salt_hash);
|
||
|
|
$filename = $this->nonce_dir . DIRECTORY_SEPARATOR . $filename;
|
||
|
|
|
||
|
|
$result = @fopen($filename, 'x');
|
||
|
|
|
||
|
|
if ($result === false) {
|
||
|
|
return false;
|
||
|
|
} else {
|
||
|
|
fclose($result);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Remove expired entries from the database. This is potentially
|
||
|
|
* expensive, so only run when it is acceptable to take time.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _allAssocs()
|
||
|
|
{
|
||
|
|
$all_associations = array();
|
||
|
|
|
||
|
|
$association_filenames =
|
||
|
|
Auth_OpenID_FileStore::_listdir($this->association_dir);
|
||
|
|
|
||
|
|
foreach ($association_filenames as $association_filename) {
|
||
|
|
$association_file = fopen($association_filename, 'rb');
|
||
|
|
|
||
|
|
if ($association_file !== false) {
|
||
|
|
$assoc_s = fread($association_file,
|
||
|
|
filesize($association_filename));
|
||
|
|
fclose($association_file);
|
||
|
|
|
||
|
|
// Remove expired or corrupted associations
|
||
|
|
$association =
|
||
|
|
Auth_OpenID_Association::deserialize(
|
||
|
|
'Auth_OpenID_Association', $assoc_s);
|
||
|
|
|
||
|
|
if ($association === null) {
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent(
|
||
|
|
$association_filename);
|
||
|
|
} else {
|
||
|
|
if ($association->getExpiresIn() == 0) {
|
||
|
|
$all_associations[] = array($association_filename,
|
||
|
|
$association);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $all_associations;
|
||
|
|
}
|
||
|
|
|
||
|
|
function clean()
|
||
|
|
{
|
||
|
|
if (!$this->active) {
|
||
|
|
trigger_error("FileStore no longer active", E_USER_ERROR);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$nonces = Auth_OpenID_FileStore::_listdir($this->nonce_dir);
|
||
|
|
$now = time();
|
||
|
|
|
||
|
|
// Check all nonces for expiry
|
||
|
|
foreach ($nonces as $nonce) {
|
||
|
|
if (!Auth_OpenID_checkTimestamp($nonce, $now)) {
|
||
|
|
$filename = $this->nonce_dir . DIRECTORY_SEPARATOR . $nonce;
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent($filename);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($this->_allAssocs() as $pair) {
|
||
|
|
list($assoc_filename, $assoc) = $pair;
|
||
|
|
if ($assoc->getExpiresIn() == 0) {
|
||
|
|
Auth_OpenID_FileStore::_removeIfPresent($assoc_filename);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _rmtree($dir)
|
||
|
|
{
|
||
|
|
if ($dir[strlen($dir) - 1] != DIRECTORY_SEPARATOR) {
|
||
|
|
$dir .= DIRECTORY_SEPARATOR;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($handle = opendir($dir)) {
|
||
|
|
while ($item = readdir($handle)) {
|
||
|
|
if (!in_array($item, array('.', '..'))) {
|
||
|
|
if (is_dir($dir . $item)) {
|
||
|
|
|
||
|
|
if (!Auth_OpenID_FileStore::_rmtree($dir . $item)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
} else if (is_file($dir . $item)) {
|
||
|
|
if (!unlink($dir . $item)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
closedir($handle);
|
||
|
|
|
||
|
|
if (!@rmdir($dir)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
// Couldn't open directory.
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _mkstemp($dir)
|
||
|
|
{
|
||
|
|
foreach (range(0, 4) as $i) {
|
||
|
|
$name = tempnam($dir, "php_openid_filestore_");
|
||
|
|
|
||
|
|
if ($name !== false) {
|
||
|
|
return $name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _mkdtemp($dir)
|
||
|
|
{
|
||
|
|
foreach (range(0, 4) as $i) {
|
||
|
|
$name = $dir . strval(DIRECTORY_SEPARATOR) . strval(getmypid()) .
|
||
|
|
"-" . strval(rand(1, time()));
|
||
|
|
if (!mkdir($name, 0700)) {
|
||
|
|
return false;
|
||
|
|
} else {
|
||
|
|
return $name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _listdir($dir)
|
||
|
|
{
|
||
|
|
$handle = opendir($dir);
|
||
|
|
$files = array();
|
||
|
|
while (false !== ($filename = readdir($handle))) {
|
||
|
|
if (!in_array($filename, array('.', '..'))) {
|
||
|
|
$files[] = $dir . DIRECTORY_SEPARATOR . $filename;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $files;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _isFilenameSafe($char)
|
||
|
|
{
|
||
|
|
$_Auth_OpenID_filename_allowed = Auth_OpenID_letters .
|
||
|
|
Auth_OpenID_digits . ".";
|
||
|
|
return (strpos($_Auth_OpenID_filename_allowed, $char) !== false);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _safe64($str)
|
||
|
|
{
|
||
|
|
$h64 = base64_encode(Auth_OpenID_SHA1($str));
|
||
|
|
$h64 = str_replace('+', '_', $h64);
|
||
|
|
$h64 = str_replace('/', '.', $h64);
|
||
|
|
$h64 = str_replace('=', '', $h64);
|
||
|
|
return $h64;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _filenameEscape($str)
|
||
|
|
{
|
||
|
|
$filename = "";
|
||
|
|
$b = Auth_OpenID::toBytes($str);
|
||
|
|
|
||
|
|
for ($i = 0; $i < count($b); $i++) {
|
||
|
|
$c = $b[$i];
|
||
|
|
if (Auth_OpenID_FileStore::_isFilenameSafe($c)) {
|
||
|
|
$filename .= $c;
|
||
|
|
} else {
|
||
|
|
$filename .= sprintf("_%02X", ord($c));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $filename;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Attempt to remove a file, returning whether the file existed at
|
||
|
|
* the time of the call.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
* @return bool $result True if the file was present, false if not.
|
||
|
|
*/
|
||
|
|
function _removeIfPresent($filename)
|
||
|
|
{
|
||
|
|
return @unlink($filename);
|
||
|
|
}
|
||
|
|
|
||
|
|
function cleanupAssociations()
|
||
|
|
{
|
||
|
|
$removed = 0;
|
||
|
|
foreach ($this->_allAssocs() as $pair) {
|
||
|
|
list($assoc_filename, $assoc) = $pair;
|
||
|
|
if ($assoc->getExpiresIn() == 0) {
|
||
|
|
$this->_removeIfPresent($assoc_filename);
|
||
|
|
$removed += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $removed;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|