| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_BINDING_SECURITY_FOR_PLATFORM_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_BINDING_SECURITY_FOR_PLATFORM_H_ |
| |
| #include "third_party/blink/renderer/platform/platform_export.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| #include "v8/include/v8.h" |
| |
| namespace blink { |
| |
| class ExceptionState; |
| struct WrapperTypeInfo; |
| |
| // BindingSecurityForPlatform provides utility functions that determine access |
| // permission between two realms. |
| // |
| // This class is a collection of trampolines to the actual implementations in |
| // BindingSecurity in core/ component. |
| class PLATFORM_EXPORT BindingSecurityForPlatform { |
| STATIC_ONLY(BindingSecurityForPlatform); |
| |
| public: |
| enum class ErrorReportOption { |
| kDoNotReport, |
| kReport, |
| }; |
| |
| // These overloads should be used only when checking a general access from |
| // one context to another context. For access to a receiver object or |
| // returned object, you should use BindingSecurity::ShouldAllowAccessTo |
| // family. |
| static bool ShouldAllowAccessToV8Context( |
| v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> target_context, |
| ExceptionState&); |
| static bool ShouldAllowAccessToV8Context( |
| v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> target_context, |
| ErrorReportOption); |
| |
| // Checks if a wrapper creation of the given wrapper type associated with |
| // |creation_context| is allowed in |accessing_context|. |
| static bool ShouldAllowWrapperCreationOrThrowException( |
| v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> creation_context, |
| const WrapperTypeInfo* wrapper_type_info); |
| |
| // Rethrows a cross context exception, that is possibly cross origin. |
| // A SecurityError may be rethrown instead of the exception if necessary. |
| static void RethrowWrapperCreationException( |
| v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> creation_context, |
| const WrapperTypeInfo* wrapper_type_info, |
| v8::Local<v8::Value> cross_context_exception); |
| |
| private: |
| using ShouldAllowAccessToV8ContextWithExceptionStateFunction = |
| bool (*)(v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> target_context, |
| ExceptionState&); |
| using ShouldAllowAccessToV8ContextWithErrorReportOptionFunction = |
| bool (*)(v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> target_context, |
| ErrorReportOption); |
| using ShouldAllowWrapperCreationOrThrowExceptionFunction = |
| bool (*)(v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> creation_context, |
| const WrapperTypeInfo* wrapper_type_info); |
| using RethrowWrapperCreationExceptionFunction = |
| void (*)(v8::Local<v8::Context> accessing_context, |
| v8::Local<v8::Context> creation_context, |
| const WrapperTypeInfo* wrapper_type_info, |
| v8::Local<v8::Value> cross_context_exception); |
| |
| static void SetShouldAllowAccessToV8ContextWithExceptionState( |
| ShouldAllowAccessToV8ContextWithExceptionStateFunction); |
| static void SetShouldAllowAccessToV8ContextWithErrorReportOption( |
| ShouldAllowAccessToV8ContextWithErrorReportOptionFunction); |
| static void SetShouldAllowWrapperCreationOrThrowException( |
| ShouldAllowWrapperCreationOrThrowExceptionFunction); |
| static void SetRethrowWrapperCreationException( |
| RethrowWrapperCreationExceptionFunction); |
| |
| static ShouldAllowAccessToV8ContextWithExceptionStateFunction |
| should_allow_access_to_v8context_with_exception_state_; |
| static ShouldAllowAccessToV8ContextWithErrorReportOptionFunction |
| should_allow_access_to_v8context_with_error_report_option_; |
| static ShouldAllowWrapperCreationOrThrowExceptionFunction |
| should_allow_wrapper_creation_or_throw_exception_; |
| static RethrowWrapperCreationExceptionFunction |
| rethrow_wrapper_creation_exception_; |
| |
| friend class BindingSecurity; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_BINDING_SECURITY_FOR_PLATFORM_H_ |