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/*
* 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.
*/
#include "config.h"
#include "bindings/core/v8/BindingSecurity.h"
#include "bindings/core/v8/V8Binding.h"
#include "core/dom/Document.h"
#include "core/frame/LocalDOMWindow.h"
#include "core/frame/LocalFrame.h"
#include "core/frame/Settings.h"
#include "core/html/HTMLFrameElementBase.h"
#include "platform/weborigin/SecurityOrigin.h"
namespace blink {
static bool isDocumentAccessibleFromDOMWindow(Document* targetDocument, LocalDOMWindow* callingWindow)
{
if (!targetDocument)
return false;
if (!callingWindow)
return false;
if (callingWindow->document()->securityOrigin()->canAccess(targetDocument->securityOrigin()))
return true;
return false;
}
static bool canAccessDocument(v8::Isolate* isolate, Document* targetDocument, ExceptionState& exceptionState)
{
LocalDOMWindow* callingWindow = callingDOMWindow(isolate);
if (isDocumentAccessibleFromDOMWindow(targetDocument, callingWindow))
return true;
if (targetDocument->domWindow())
exceptionState.throwSecurityError(targetDocument->domWindow()->sanitizedCrossDomainAccessErrorMessage(callingWindow), targetDocument->domWindow()->crossDomainAccessErrorMessage(callingWindow));
return false;
}
static bool canAccessDocument(v8::Isolate* isolate, Document* targetDocument, SecurityReportingOption reportingOption = ReportSecurityError)
{
LocalDOMWindow* callingWindow = callingDOMWindow(isolate);
if (isDocumentAccessibleFromDOMWindow(targetDocument, callingWindow))
return true;
// FIXME: This logic looks unnecessarily convoluted.
if (reportingOption == ReportSecurityError && targetDocument->domWindow()) {
if (LocalFrame* frame = targetDocument->frame())
frame->localDOMWindow()->printErrorMessage(targetDocument->domWindow()->crossDomainAccessErrorMessage(callingWindow));
}
return false;
}
bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* target, SecurityReportingOption reportingOption)
{
if (!target || !target->isLocalFrame())
return false;
return canAccessDocument(isolate, toLocalFrame(target)->document(), reportingOption);
}
bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* target, ExceptionState& exceptionState)
{
if (!target || !target->isLocalFrame())
return false;
return canAccessDocument(isolate, toLocalFrame(target)->document(), exceptionState);
}
bool BindingSecurity::shouldAllowAccessToNode(v8::Isolate* isolate, Node* target, ExceptionState& exceptionState)
{
return target && canAccessDocument(isolate, &target->document(), exceptionState);
}
}
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