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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 COMPUTER, 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.
*
*/
#ifndef SecurityContext_h
#define SecurityContext_h
#include "base/macros.h"
#include "base/memory/scoped_refptr.h"
#include "common/net/ip_address_space.mojom-blink.h"
#include "core/CoreExport.h"
#include "core/dom/SandboxFlags.h"
#include "platform/heap/Handle.h"
#include "platform/weborigin/Suborigin.h"
#include "platform/wtf/HashSet.h"
#include "platform/wtf/text/StringHash.h"
#include "platform/wtf/text/WTFString.h"
#include "public/platform/WebInsecureRequestPolicy.h"
#include "public/platform/WebURLRequest.h"
#include "third_party/WebKit/common/feature_policy/feature_policy.h"
#include <memory>
namespace blink {
class SecurityOrigin;
class ContentSecurityPolicy;
class CORE_EXPORT SecurityContext : public GarbageCollectedMixin {
public:
virtual void Trace(blink::Visitor*);
using InsecureNavigationsSet = HashSet<unsigned, WTF::AlreadyHashed>;
static std::vector<unsigned> SerializeInsecureNavigationSet(
const InsecureNavigationsSet&);
const SecurityOrigin* GetSecurityOrigin() const {
return security_origin_.get();
}
SecurityOrigin* GetMutableSecurityOrigin() { return security_origin_.get(); }
ContentSecurityPolicy* GetContentSecurityPolicy() const {
return content_security_policy_.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 SetSecurityOrigin(scoped_refptr<SecurityOrigin>);
virtual void DidUpdateSecurityOrigin() = 0;
SandboxFlags GetSandboxFlags() const { return sandbox_flags_; }
bool IsSandboxed(SandboxFlags mask) const {
return IsSandboxed(mask, sandbox_flags_);
}
static bool IsSandboxed(SandboxFlags mask, SandboxFlags sandbox_flags) {
return sandbox_flags & mask;
}
virtual void EnforceSandboxFlags(SandboxFlags mask);
void SetAddressSpace(mojom::IPAddressSpace space) { address_space_ = space; }
mojom::IPAddressSpace AddressSpace() const { return address_space_; }
String addressSpaceForBindings() const;
void SetRequireTrustedTypes() { require_safe_types_ = true; }
bool RequireTrustedTypes() const { return require_safe_types_; }
void SetInsecureNavigationsSet(const std::vector<unsigned>& set) {
insecure_navigations_to_upgrade_.clear();
for (unsigned hash : set)
insecure_navigations_to_upgrade_.insert(hash);
}
void AddInsecureNavigationUpgrade(unsigned hashed_host) {
insecure_navigations_to_upgrade_.insert(hashed_host);
}
InsecureNavigationsSet* InsecureNavigationsToUpgrade() {
return &insecure_navigations_to_upgrade_;
}
virtual void SetInsecureRequestPolicy(WebInsecureRequestPolicy policy) {
insecure_request_policy_ = policy;
}
WebInsecureRequestPolicy GetInsecureRequestPolicy() const {
return insecure_request_policy_;
}
void EnforceSuborigin(const Suborigin&);
FeaturePolicy* GetFeaturePolicy() const { return feature_policy_.get(); }
void InitializeFeaturePolicy(const ParsedFeaturePolicy& parsed_header,
const ParsedFeaturePolicy& container_policy,
const FeaturePolicy* parent_feature_policy);
void UpdateFeaturePolicyOrigin();
// Apply the sandbox flag, and also maybe update the security origin
// to the newly created unique one with |is_potentially_trustworthy|.
void ApplySandboxFlags(SandboxFlags mask,
bool is_potentially_trustworthy = false);
protected:
SecurityContext();
virtual ~SecurityContext();
void SetContentSecurityPolicy(ContentSecurityPolicy*);
SandboxFlags sandbox_flags_;
private:
scoped_refptr<SecurityOrigin> security_origin_;
Member<ContentSecurityPolicy> content_security_policy_;
std::unique_ptr<FeaturePolicy> feature_policy_;
mojom::IPAddressSpace address_space_;
WebInsecureRequestPolicy insecure_request_policy_;
InsecureNavigationsSet insecure_navigations_to_upgrade_;
bool require_safe_types_;
DISALLOW_COPY_AND_ASSIGN(SecurityContext);
};
} // namespace blink
#endif // SecurityContext_h
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