SecurityMiddleware::afterController() - Code Metrics - Inspection of "[tx-robot] updated from transifex" - owncloud/core - Measure and Improve Code Quality continuously with Scrutinizer

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created 2018-06-24 00:01 UTC

SecurityMiddleware::afterController() A

↳ Parent: SecurityMiddleware

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
nc	2
nop	3
dl	0
loc	10
rs	9.9332
c	0
b	0
f	0

<?php
/**
 * @author Bernhard Posselt <[email protected]>
 * @author Lukas Reschke <[email protected]>
 * @author Morris Jobke <[email protected]>
 * @author Roeland Jago Douma <[email protected]>
 * @author Stefan Weil <[email protected]>
 * @author Thomas Müller <[email protected]>
 * @author Thomas Tanghus <[email protected]>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @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\AppFramework\Middleware\Security;

use OC\AppFramework\Middleware\Security\Exceptions\AppNotEnabledException;
use OC\AppFramework\Middleware\Security\Exceptions\CrossSiteRequestForgeryException;
use OC\AppFramework\Middleware\Security\Exceptions\NotAdminException;
use OC\AppFramework\Middleware\Security\Exceptions\NotLoggedInException;
use OC\AppFramework\Utility\ControllerMethodReflector;
use OC\Core\Controller\LoginController;
use OC\Security\CSP\ContentSecurityPolicyManager;
use OCP\AppFramework\Http\ContentSecurityPolicy;
use OCP\AppFramework\Http\RedirectResponse;
use OCP\AppFramework\Http\TemplateResponse;
use OCP\AppFramework\Middleware;
use OCP\AppFramework\Http\Response;
use OCP\AppFramework\Http\JSONResponse;
use OCP\INavigationManager;
use OCP\IURLGenerator;
use OCP\IRequest;
use OCP\ILogger;
use OCP\AppFramework\Controller;
use OCP\IUserSession;
use OCP\Util;
use OC\AppFramework\Middleware\Security\Exceptions\SecurityException;

/**
 * Used to do all the authentication and checking stuff for a controller method
 * It reads out the annotations of a controller method and checks which if
 * security things should be checked and also handles errors in case a security
 * check fails
 */
class SecurityMiddleware extends Middleware {
	/** @var INavigationManager */
	private $navigationManager;
	/** @var IRequest */
	private $request;
	/** @var ControllerMethodReflector */
	private $reflector;
	/** @var string */
	private $appName;
	/** @var IURLGenerator */
	private $urlGenerator;
	/** @var ILogger */
	private $logger;
	/** @var bool */
	private $isAdminUser;
	/** @var ContentSecurityPolicyManager */
	private $contentSecurityPolicyManager;
	/** @var IUserSession */
	private $session;

	/**
	 * @param IRequest $request
	 * @param ControllerMethodReflector $reflector
	 * @param INavigationManager $navigationManager
	 * @param IURLGenerator $urlGenerator
	 * @param ILogger $logger
	 * @param IUserSession $session
	 * @param string $appName
	 * @param bool $isAdminUser
	 * @param ContentSecurityPolicyManager $contentSecurityPolicyManager
	 */
	public function __construct(IRequest $request,
								ControllerMethodReflector $reflector,
								INavigationManager $navigationManager,
								IURLGenerator $urlGenerator,
								ILogger $logger,
								IUserSession $session,
								$appName,
								$isAdminUser,
								ContentSecurityPolicyManager $contentSecurityPolicyManager) {
		$this->navigationManager = $navigationManager;
		$this->request = $request;
		$this->reflector = $reflector;
		$this->appName = $appName;
		$this->urlGenerator = $urlGenerator;
		$this->logger = $logger;
		$this->session = $session;
		$this->isAdminUser = $isAdminUser;
		$this->contentSecurityPolicyManager = $contentSecurityPolicyManager;
	}

	/**
	 * This runs all the security checks before a method call. The
	 * security checks are determined by inspecting the controller method
	 * annotations
	 * @param string $controller the controllername or string
	 * @param string $methodName the name of the method
	 * @throws SecurityException when a security check fails
	 */
	public function beforeController($controller, $methodName) {

		// this will set the current navigation entry of the app, use this only
		// for normal HTML requests and not for AJAX requests
		$this->navigationManager->setActiveEntry($this->appName);

		// security checks
		$isPublicPage = $this->reflector->hasAnnotation('PublicPage');
		if (!$isPublicPage) {
			if (!$this->isLoggedIn()) {
				throw new NotLoggedInException();
			}

			if (!$this->reflector->hasAnnotation('NoAdminRequired')) {
				if (!$this->isAdminUser) {
					throw new NotAdminException();
				}
			}
		}

		// CSRF check - also registers the CSRF token since the session may be closed later
		Util::callRegister();
		if (!$this->reflector->hasAnnotation('NoCSRFRequired')) {
			if (!$this->request->passesCSRFCheck()) {
				throw new CrossSiteRequestForgeryException();
			}
		}

		/**
		 * FIXME: Use DI once available
		 * Checks if app is enabled (also includes a check whether user is allowed to access the resource)
		 * The getAppPath() check is here since components such as settings also use the AppFramework and
		 * therefore won't pass this check.
		 */
		if (\OC_App::getAppPath($this->appName) !== false && !\OC_App::isEnabled($this->appName)) {
			throw new AppNotEnabledException();
		}
	}

	/**
	 * Performs the default CSP modifications that may be injected by other
	 * applications
	 *
	 * @param Controller $controller
	 * @param string $methodName
	 * @param Response $response
	 * @return Response
	 */
	public function afterController($controller, $methodName, Response $response) {
		$policy = $response->getContentSecurityPolicy() !== null ? $response->getContentSecurityPolicy() : new ContentSecurityPolicy();

		$defaultPolicy = $this->contentSecurityPolicyManager->getDefaultPolicy();
		$defaultPolicy = $this->contentSecurityPolicyManager->mergePolicies($defaultPolicy, $policy);

		$response->setContentSecurityPolicy($defaultPolicy);

		return $response;
	}

	/**
	 * If an SecurityException is being caught, ajax requests return a JSON error
	 * response and non ajax requests redirect to the index
	 * @param Controller $controller the controller that is being called
	 * @param string $methodName the name of the method that will be called on
	 *                           the controller
	 * @param \Exception $exception the thrown exception
	 * @throws \Exception the passed in exception if it can't handle it
	 * @return Response a Response object or null in case that the exception could not be handled
	 */
	public function afterException($controller, $methodName, \Exception $exception) {
		if ($exception instanceof SecurityException) {
			if (\stripos($this->request->getHeader('Accept'), 'html') === false) {
				$response = new JSONResponse(
					['message' => $exception->getMessage()],
					$exception->getCode()
				);
			} else {
				if ($exception instanceof NotLoggedInException) {
					$url = $this->urlGenerator->linkToRoute(
						'core.login.showLoginForm',
						[
							'redirect_url' => \urlencode($this->request->server['REQUEST_URI']),
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
						]
					);
					$response = new RedirectResponse($url);
				} elseif (
					$methodName === 'tryLogin'
					&& $exception instanceof CrossSiteRequestForgeryException
					&& $controller instanceof LoginController
				) {
					$this->logger->debug($exception->getMessage());
					$controller->getSession()->set(
						'loginMessages',
						[
							['csrf_error'],
							[]
						]
					);
					return $controller->showLoginForm(null, null, null);
				} else {
					$response = new TemplateResponse('core', '403', ['file' => $exception->getMessage()], 'guest');
					$response->setStatus($exception->getCode());
				}
			}

			$this->logger->debug($exception->getMessage());
			return $response;
		}

		throw $exception;
	}

	private function isLoggedIn() {
		static $loginCalled = false;
		if (!$loginCalled && !$this->session->isLoggedIn()) {
			\OC::handleLogin($this->request);
			$loginCalled = true;
		}
		return $this->session->isLoggedIn();
	}
}


1			<?php
2			/**
3			* @author Bernhard Posselt <[email protected]>
4			* @author Lukas Reschke <[email protected]>
5			* @author Morris Jobke <[email protected]>
6			* @author Roeland Jago Douma <[email protected]>
7			* @author Stefan Weil <[email protected]>
8			* @author Thomas Müller <[email protected]>
9			* @author Thomas Tanghus <[email protected]>
10			*
11			* @copyright Copyright (c) 2018, ownCloud GmbH
12			* @license AGPL-3.0
13			*
14			* This code is free software: you can redistribute it and/or modify
15			* it under the terms of the GNU Affero General Public License, version 3,
16			* as published by the Free Software Foundation.
17			*
18			* This program is distributed in the hope that it will be useful,
19			* but WITHOUT ANY WARRANTY; without even the implied warranty of
20			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21			* GNU Affero General Public License for more details.
22			*
23			* You should have received a copy of the GNU Affero General Public License, version 3,
24			* along with this program. If not, see <http://www.gnu.org/licenses/>
25			*
26			*/
27
28			namespace OC\AppFramework\Middleware\Security;
29
30			use OC\AppFramework\Middleware\Security\Exceptions\AppNotEnabledException;
31			use OC\AppFramework\Middleware\Security\Exceptions\CrossSiteRequestForgeryException;
32			use OC\AppFramework\Middleware\Security\Exceptions\NotAdminException;
33			use OC\AppFramework\Middleware\Security\Exceptions\NotLoggedInException;
34			use OC\AppFramework\Utility\ControllerMethodReflector;
35			use OC\Core\Controller\LoginController;
36			use OC\Security\CSP\ContentSecurityPolicyManager;
37			use OCP\AppFramework\Http\ContentSecurityPolicy;
38			use OCP\AppFramework\Http\RedirectResponse;
39			use OCP\AppFramework\Http\TemplateResponse;
40			use OCP\AppFramework\Middleware;
41			use OCP\AppFramework\Http\Response;
42			use OCP\AppFramework\Http\JSONResponse;
43			use OCP\INavigationManager;
44			use OCP\IURLGenerator;
45			use OCP\IRequest;
46			use OCP\ILogger;
47			use OCP\AppFramework\Controller;
48			use OCP\IUserSession;
49			use OCP\Util;
50			use OC\AppFramework\Middleware\Security\Exceptions\SecurityException;
51
52			/**
53			* Used to do all the authentication and checking stuff for a controller method
54			* It reads out the annotations of a controller method and checks which if
55			* security things should be checked and also handles errors in case a security
56			* check fails
57			*/
58			class SecurityMiddleware extends Middleware {
59			/** @var INavigationManager */
60			private $navigationManager;
61			/** @var IRequest */
62			private $request;
63			/** @var ControllerMethodReflector */
64			private $reflector;
65			/** @var string */
66			private $appName;
67			/** @var IURLGenerator */
68			private $urlGenerator;
69			/** @var ILogger */
70			private $logger;
71			/** @var bool */
72			private $isAdminUser;
73			/** @var ContentSecurityPolicyManager */
74			private $contentSecurityPolicyManager;
75			/** @var IUserSession */
76			private $session;
77
78			/**
79			* @param IRequest $request
80			* @param ControllerMethodReflector $reflector
81			* @param INavigationManager $navigationManager
82			* @param IURLGenerator $urlGenerator
83			* @param ILogger $logger
84			* @param IUserSession $session
85			* @param string $appName
86			* @param bool $isAdminUser
87			* @param ContentSecurityPolicyManager $contentSecurityPolicyManager
88			*/
89			public function __construct(IRequest $request,
90			ControllerMethodReflector $reflector,
91			INavigationManager $navigationManager,
92			IURLGenerator $urlGenerator,
93			ILogger $logger,
94			IUserSession $session,
95			$appName,
96			$isAdminUser,
97			ContentSecurityPolicyManager $contentSecurityPolicyManager) {
98			$this->navigationManager = $navigationManager;
99			$this->request = $request;
100			$this->reflector = $reflector;
101			$this->appName = $appName;
102			$this->urlGenerator = $urlGenerator;
103			$this->logger = $logger;
104			$this->session = $session;
105			$this->isAdminUser = $isAdminUser;
106			$this->contentSecurityPolicyManager = $contentSecurityPolicyManager;
107			}
108
109			/**
110			* This runs all the security checks before a method call. The
111			* security checks are determined by inspecting the controller method
112			* annotations
113			* @param string $controller the controllername or string
114			* @param string $methodName the name of the method
115			* @throws SecurityException when a security check fails
116			*/
117			public function beforeController($controller, $methodName) {
118
119			// this will set the current navigation entry of the app, use this only
120			// for normal HTML requests and not for AJAX requests
121			$this->navigationManager->setActiveEntry($this->appName);
122
123			// security checks
124			$isPublicPage = $this->reflector->hasAnnotation('PublicPage');
125			if (!$isPublicPage) {
126			if (!$this->isLoggedIn()) {
127			throw new NotLoggedInException();
128			}
129
130			if (!$this->reflector->hasAnnotation('NoAdminRequired')) {
131			if (!$this->isAdminUser) {
132			throw new NotAdminException();
133			}
134			}
135			}
136
137			// CSRF check - also registers the CSRF token since the session may be closed later
138			Util::callRegister();
139			if (!$this->reflector->hasAnnotation('NoCSRFRequired')) {
140			if (!$this->request->passesCSRFCheck()) {
141			throw new CrossSiteRequestForgeryException();
142			}
143			}
144
145			/**
146			* FIXME: Use DI once available
147			* Checks if app is enabled (also includes a check whether user is allowed to access the resource)
148			* The getAppPath() check is here since components such as settings also use the AppFramework and
149			* therefore won't pass this check.
150			*/
151			if (\OC_App::getAppPath($this->appName) !== false && !\OC_App::isEnabled($this->appName)) {
152			throw new AppNotEnabledException();
153			}
154			}
155
156			/**
157			* Performs the default CSP modifications that may be injected by other
158			* applications
159			*
160			* @param Controller $controller
161			* @param string $methodName
162			* @param Response $response
163			* @return Response
164			*/
165			public function afterController($controller, $methodName, Response $response) {
166			$policy = $response->getContentSecurityPolicy() !== null ? $response->getContentSecurityPolicy() : new ContentSecurityPolicy();
167
168			$defaultPolicy = $this->contentSecurityPolicyManager->getDefaultPolicy();
169			$defaultPolicy = $this->contentSecurityPolicyManager->mergePolicies($defaultPolicy, $policy);
170
171			$response->setContentSecurityPolicy($defaultPolicy);
172
173			return $response;
174			}
175
176			/**
177			* If an SecurityException is being caught, ajax requests return a JSON error
178			* response and non ajax requests redirect to the index
179			* @param Controller $controller the controller that is being called
180			* @param string $methodName the name of the method that will be called on
181			* the controller
182			* @param \Exception $exception the thrown exception
183			* @throws \Exception the passed in exception if it can't handle it
184			* @return Response a Response object or null in case that the exception could not be handled
185			*/
186			public function afterException($controller, $methodName, \Exception $exception) {
187			if ($exception instanceof SecurityException) {
188			if (\stripos($this->request->getHeader('Accept'), 'html') === false) {
189			$response = new JSONResponse(
190			['message' => $exception->getMessage()],
191			$exception->getCode()
192			);
193			} else {
194			if ($exception instanceof NotLoggedInException) {
195			$url = $this->urlGenerator->linkToRoute(
196			'core.login.showLoginForm',
197			[
198			'redirect_url' => \urlencode($this->request->server['REQUEST_URI']),
			0 ignored issues – show Bug introduced 2015-11-21 07:38 UTC by Report Bug Copy Issue Report Accessing `server` on the interface `OCP\IRequest` suggest that you code against a concrete implementation. How about adding an `instanceof` check? If you access a property on an interface, you most likely code against a concrete implementation of the interface. Available Fixes Adding an additional type check: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeInterface $object) { if ($object instanceof SomeClass) { $a = $object->a; } } Changing the type hint: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeClass $object) { $a = $object->a; } Loading history...
199			]
200			);
201			$response = new RedirectResponse($url);
202			} elseif (
203			$methodName === 'tryLogin'
204			&& $exception instanceof CrossSiteRequestForgeryException
205			&& $controller instanceof LoginController
206			) {
207			$this->logger->debug($exception->getMessage());
208			$controller->getSession()->set(
209			'loginMessages',
210			[
211			['csrf_error'],
212			[]
213			]
214			);
215			return $controller->showLoginForm(null, null, null);
216			} else {
217			$response = new TemplateResponse('core', '403', ['file' => $exception->getMessage()], 'guest');
218			$response->setStatus($exception->getCode());
219			}
220			}
221
222			$this->logger->debug($exception->getMessage());
223			return $response;
224			}
225
226			throw $exception;
227			}
228
229			private function isLoggedIn() {
230			static $loginCalled = false;
231			if (!$loginCalled && !$this->session->isLoggedIn()) {
232			\OC::handleLogin($this->request);
233			$loginCalled = true;
234			}
235			return $this->session->isLoggedIn();
236			}
237			}
238

owncloud / core

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SecurityMiddleware::afterController() A

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