| /* |
| * Copyright (C) 2009 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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 BindingSecurity_h |
| #define BindingSecurity_h |
| |
| #include "core/CoreExport.h" |
| #include "wtf/Allocator.h" |
| #include <v8.h> |
| |
| namespace blink { |
| |
| class DOMWindow; |
| class EventTarget; |
| class ExceptionState; |
| class Frame; |
| class LocalDOMWindow; |
| class Location; |
| class Node; |
| |
| class CORE_EXPORT BindingSecurity { |
| STATIC_ONLY(BindingSecurity); |
| |
| public: |
| enum class ErrorReportOption { |
| DoNotReport, |
| Report, |
| }; |
| |
| // Check if the caller (|accessingWindow|) is allowed to access the JS |
| // receiver object (|target|), where the receiver object is the JS object |
| // for which the DOM attribute or DOM operation is being invoked (in the |
| // form of receiver.domAttr or receiver.domOp()). |
| // Note that only Window and Location objects are cross-origin accessible |
| // and that EventTarget interface is the parent interface of Window |
| // interface. So the receiver object must be of type DOMWindow, |
| // EventTarget, or Location. |
| // |
| // DOMWindow |
| static bool shouldAllowAccessTo(const LocalDOMWindow* accessingWindow, |
| const DOMWindow* target, |
| ExceptionState&); |
| static bool shouldAllowAccessTo(const LocalDOMWindow* accessingWindow, |
| const DOMWindow* target, |
| ErrorReportOption); |
| // EventTarget (as the parent of DOMWindow) |
| static bool shouldAllowAccessTo( |
| const LocalDOMWindow* accessingWindow, |
| const EventTarget* target, |
| ExceptionState&); // NOLINT(readability/parameter_name) |
| // Location |
| static bool shouldAllowAccessTo(const LocalDOMWindow* accessingWindow, |
| const Location* target, |
| ExceptionState&); |
| static bool shouldAllowAccessTo(const LocalDOMWindow* accessingWindow, |
| const Location* target, |
| ErrorReportOption); |
| |
| // Check if the caller (|accessingWindow|) is allowed to access the JS |
| // returned object (|target|), where the returned object is the JS object |
| // which is returned as a result of invoking a DOM attribute or DOM |
| // operation (in the form of |
| // var x = receiver.domAttr // or receiver.domOp() |
| // where |x| is the returned object). |
| // See window.frameElement for example, which may return a frame object. |
| // The object returned from window.frameElement must be the same origin if |
| // it's not null. |
| // |
| // Node |
| static bool shouldAllowAccessTo(const LocalDOMWindow* accessingWindow, |
| const Node* target, |
| ExceptionState&); |
| static bool shouldAllowAccessTo(const LocalDOMWindow* accessingWindow, |
| const Node* target, |
| ErrorReportOption); |
| |
| // 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 the above overloads. |
| static bool shouldAllowAccessToFrame(const LocalDOMWindow* accessingWindow, |
| const Frame* target, |
| ExceptionState&); |
| static bool shouldAllowAccessToFrame(const LocalDOMWindow* accessingWindow, |
| const Frame* target, |
| ErrorReportOption); |
| // This overload must be used only for detached windows. |
| static bool shouldAllowAccessToDetachedWindow( |
| const LocalDOMWindow* accessingWindow, |
| const DOMWindow* target, |
| ExceptionState&); |
| }; |
| |
| } // namespace blink |
| |
| #endif // BindingSecurity_h |