| /* |
| * 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; |
| |
| if (reportingOption == ReportSecurityError && targetDocument->domWindow()) { |
| if (LocalFrame* frame = targetDocument->frame()) |
| frame->domWindow()->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); |
| } |
| |
| } |