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/*
* Copyright (C) 2011 Google Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY GOOGLE, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#pragma once
#include <memory>
#include <wtf/Forward.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class SecurityOrigin;
class SecurityOriginPolicy;
class ContentSecurityPolicy;
class URL;
enum SandboxFlag {
// See http://www.whatwg.org/specs/web-apps/current-work/#attr-iframe-sandbox for a list of the sandbox flags.
SandboxNone = 0,
SandboxNavigation = 1,
SandboxPlugins = 1 << 1,
SandboxOrigin = 1 << 2,
SandboxForms = 1 << 3,
SandboxScripts = 1 << 4,
SandboxTopNavigation = 1 << 5,
SandboxPopups = 1 << 6, // See https://www.w3.org/Bugs/Public/show_bug.cgi?id=12393
SandboxAutomaticFeatures = 1 << 7,
SandboxPointerLock = 1 << 8,
SandboxPropagatesToAuxiliaryBrowsingContexts = 1 << 9,
SandboxTopNavigationByUserActivation = 1 << 10,
SandboxDocumentDomain = 1 << 11,
SandboxAll = -1 // Mask with all bits set to 1.
};
typedef int SandboxFlags;
class SecurityContext {
public:
SandboxFlags sandboxFlags() const { return m_sandboxFlags; }
ContentSecurityPolicy* contentSecurityPolicy() { return m_contentSecurityPolicy.get(); }
bool isSecureTransitionTo(const URL&) const;
void enforceSandboxFlags(SandboxFlags mask);
bool isSandboxed(SandboxFlags mask) const { return m_sandboxFlags & mask; }
SecurityOriginPolicy* securityOriginPolicy() const { return m_securityOriginPolicy.get(); }
// Explicitly override the security origin for this security context.
// Note: It is dangerous to change the security origin of a script context
// that already contains content.
void setSecurityOriginPolicy(RefPtr<SecurityOriginPolicy>&&);
WEBCORE_EXPORT SecurityOrigin* securityOrigin() const;
static SandboxFlags parseSandboxPolicy(const String& policy, String& invalidTokensErrorMessage);
static bool isSupportedSandboxPolicy(StringView);
bool foundMixedContent() const { return m_foundMixedContent; }
void setFoundMixedContent() { m_foundMixedContent = true; }
bool geolocationAccessed() const { return m_geolocationAccessed; }
void setGeolocationAccessed() { m_geolocationAccessed = true; }
bool isStrictMixedContentMode() const { return m_isStrictMixedContentMode; }
void setStrictMixedContentMode(bool strictMixedContentMode) { m_isStrictMixedContentMode = strictMixedContentMode; }
// This method implements the "Is the environment settings object settings a secure context?" algorithm from
// the Secure Context spec: https://w3c.github.io/webappsec-secure-contexts/#settings-object (Editor's Draft, 17 November 2016)
virtual bool isSecureContext() const = 0;
protected:
SecurityContext();
virtual ~SecurityContext();
void setContentSecurityPolicy(std::unique_ptr<ContentSecurityPolicy>);
// It's only appropriate to call this during security context initialization; it's needed for
// flags that can't be disabled with allow-* attributes, such as SandboxNavigation.
void disableSandboxFlags(SandboxFlags mask) { m_sandboxFlags &= ~mask; }
void didFailToInitializeSecurityOrigin() { m_haveInitializedSecurityOrigin = false; }
bool haveInitializedSecurityOrigin() const { return m_haveInitializedSecurityOrigin; }
private:
RefPtr<SecurityOriginPolicy> m_securityOriginPolicy;
std::unique_ptr<ContentSecurityPolicy> m_contentSecurityPolicy;
SandboxFlags m_sandboxFlags { SandboxNone };
bool m_haveInitializedSecurityOrigin { false };
bool m_foundMixedContent { false };
bool m_geolocationAccessed { false };
bool m_isStrictMixedContentMode { false };
};
} // namespace WebCore
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