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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 "BindingSecurityBase.h"
#include "DOMWindow.h"
#include "Document.h"
#include "Frame.h"
#include "SecurityOrigin.h"
namespace WebCore {
DOMWindow* BindingSecurityBase::getDOMWindow(Frame* frame)
{
return frame->domWindow();
}
Frame* BindingSecurityBase::getFrame(Node* node)
{
return node->document()->frame();
}
bool BindingSecurityBase::canAccess(DOMWindow* activeWindow, DOMWindow* targetWindow)
{
ASSERT(targetWindow);
if (activeWindow == targetWindow)
return true;
if (!activeWindow)
return false;
SecurityOrigin* activeSecurityOrigin = activeWindow->securityOrigin();
SecurityOrigin* targetSecurityOrigin = targetWindow->securityOrigin();
// We have seen crashes were the security origin of the target has not been
// initialized. Defend against that.
if (!targetSecurityOrigin)
return false;
if (activeSecurityOrigin->canAccess(targetSecurityOrigin))
return true;
return false;
}
}
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