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-rw-r--r--lib/private/security/csrf/csrftoken.php69
-rw-r--r--lib/private/security/csrf/csrftokengenerator.php52
-rw-r--r--lib/private/security/csrf/csrftokenmanager.php97
-rw-r--r--lib/private/security/csrf/tokenstorage/sessionstorage.php80
4 files changed, 0 insertions, 298 deletions
diff --git a/lib/private/security/csrf/csrftoken.php b/lib/private/security/csrf/csrftoken.php
deleted file mode 100644
index 4524d0db6e6..00000000000
--- a/lib/private/security/csrf/csrftoken.php
+++ /dev/null
@@ -1,69 +0,0 @@
-<?php
-/**
- * @author Lukas Reschke <lukas@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Security\CSRF;
-
-/**
- * Class CsrfToken represents the stored or provided CSRF token. To mitigate
- * BREACH alike vulnerabilities the token is returned in an encrypted value as
- * well in an unencrypted value. For display measures to the user always the
- * unencrypted one should be chosen.
- *
- * @package OC\Security\CSRF
- */
-class CsrfToken {
- /** @var string */
- private $value;
-
- /**
- * @param string $value Value of the token. Can be encrypted or not encrypted.
- */
- public function __construct($value) {
- $this->value = $value;
- }
-
- /**
- * Encrypted value of the token. This is used to mitigate BREACH alike
- * vulnerabilities. For display measures do use this functionality.
- *
- * @return string
- */
- public function getEncryptedValue() {
- $sharedSecret = base64_encode(random_bytes(strlen($this->value)));
- return base64_encode($this->value ^ $sharedSecret) .':'.$sharedSecret;
- }
-
- /**
- * The unencrypted value of the token. Used for decrypting an already
- * encrypted token.
- *
- * @return int
- */
- public function getDecryptedValue() {
- $token = explode(':', $this->value);
- if (count($token) !== 2) {
- return '';
- }
- $obfuscatedToken = $token[0];
- $secret = $token[1];
- return base64_decode($obfuscatedToken) ^ $secret;
- }
-}
diff --git a/lib/private/security/csrf/csrftokengenerator.php b/lib/private/security/csrf/csrftokengenerator.php
deleted file mode 100644
index 6ea71636d22..00000000000
--- a/lib/private/security/csrf/csrftokengenerator.php
+++ /dev/null
@@ -1,52 +0,0 @@
-<?php
-/**
- * @author Lukas Reschke <lukas@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Security\CSRF;
-
-use OCP\Security\ISecureRandom;
-
-/**
- * Class CsrfTokenGenerator is used to generate a cryptographically secure
- * pseudo-random number for the token.
- *
- * @package OC\Security\CSRF
- */
-class CsrfTokenGenerator {
- /** @var ISecureRandom */
- private $random;
-
- /**
- * @param ISecureRandom $random
- */
- public function __construct(ISecureRandom $random) {
- $this->random = $random;
- }
-
- /**
- * Generate a new CSRF token.
- *
- * @param int $length Length of the token in characters.
- * @return string
- */
- public function generateToken($length = 32) {
- return $this->random->generate($length);
- }
-}
diff --git a/lib/private/security/csrf/csrftokenmanager.php b/lib/private/security/csrf/csrftokenmanager.php
deleted file mode 100644
index 8d1bf5c0819..00000000000
--- a/lib/private/security/csrf/csrftokenmanager.php
+++ /dev/null
@@ -1,97 +0,0 @@
-<?php
-/**
- * @author Lukas Reschke <lukas@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Security\CSRF;
-
-use OC\Security\CSRF\TokenStorage\SessionStorage;
-
-/**
- * Class CsrfTokenManager is the manager for all CSRF token related activities.
- *
- * @package OC\Security\CSRF
- */
-class CsrfTokenManager {
- /** @var CsrfTokenGenerator */
- private $tokenGenerator;
- /** @var SessionStorage */
- private $sessionStorage;
-
- /**
- * @param CsrfTokenGenerator $tokenGenerator
- * @param SessionStorage $storageInterface
- */
- public function __construct(CsrfTokenGenerator $tokenGenerator,
- SessionStorage $storageInterface) {
- $this->tokenGenerator = $tokenGenerator;
- $this->sessionStorage = $storageInterface;
- }
-
- /**
- * Returns the current CSRF token, if none set it will create a new one.
- *
- * @return CsrfToken
- */
- public function getToken() {
- if($this->sessionStorage->hasToken()) {
- $value = $this->sessionStorage->getToken();
- } else {
- $value = $this->tokenGenerator->generateToken();
- $this->sessionStorage->setToken($value);
- }
-
- return new CsrfToken($value);
- }
-
- /**
- * Invalidates any current token and sets a new one.
- *
- * @return CsrfToken
- */
- public function refreshToken() {
- $value = $this->tokenGenerator->generateToken();
- $this->sessionStorage->setToken($value);
- return new CsrfToken($value);
- }
-
- /**
- * Remove the current token from the storage.
- */
- public function removeToken() {
- $this->sessionStorage->removeToken();
- }
-
- /**
- * Verifies whether the provided token is valid.
- *
- * @param CsrfToken $token
- * @return bool
- */
- public function isTokenValid(CsrfToken $token) {
- if(!$this->sessionStorage->hasToken()) {
- return false;
- }
-
- return hash_equals(
- $this->sessionStorage->getToken(),
- $token->getDecryptedValue()
- );
- }
-}
diff --git a/lib/private/security/csrf/tokenstorage/sessionstorage.php b/lib/private/security/csrf/tokenstorage/sessionstorage.php
deleted file mode 100644
index e1c8c96e920..00000000000
--- a/lib/private/security/csrf/tokenstorage/sessionstorage.php
+++ /dev/null
@@ -1,80 +0,0 @@
-<?php
-/**
- * @author Lukas Reschke <lukas@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Security\CSRF\TokenStorage;
-
-use OCP\ISession;
-
-/**
- * Class SessionStorage provides the session storage
- *
- * @package OC\Security\CSRF\TokenStorage
- */
-class SessionStorage {
- /** @var ISession */
- private $session;
-
- /**
- * @param ISession $session
- */
- public function __construct(ISession $session) {
- $this->session = $session;
- }
-
- /**
- * Returns the current token or throws an exception if none is found.
- *
- * @return string
- * @throws \Exception
- */
- public function getToken() {
- $token = $this->session->get('requesttoken');
- if(empty($token)) {
- throw new \Exception('Session does not contain a requesttoken');
- }
-
- return $token;
- }
-
- /**
- * Set the valid current token to $value.
- *
- * @param string $value
- */
- public function setToken($value) {
- $this->session->set('requesttoken', $value);
- }
-
- /**
- * Removes the current token.
- */
- public function removeToken() {
- $this->session->remove('requesttoken');
- }
- /**
- * Whether the storage has a storage.
- *
- * @return bool
- */
- public function hasToken() {
- return $this->session->exists('requesttoken');
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-16 10:06:26 +0000