Issue 1793 - check whether the frame is whitelisted before injecting CSS

src/plugin/PluginTabBase.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 159 matching lines @@
   params.rgvarg = &var;
   params.rgdispidNamedArgs = 0;
   hr = pWndEx->Invoke(dispid, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_PROPERTYPUT | DISPATCH_PROPERTYPUTREF, &params, 0, 0, 0);
   DEBUG_GENERAL("Invoke");
   if (FAILED(hr))
   {
     DEBUG_ERROR_LOG(hr, PLUGIN_ERROR_CREATE_SETTINGS_JAVASCRIPT, PLUGIN_ERROR_CREATE_SETTINGS_JAVASCRIPT_INVOKE, "CPluginTabBase::InjectABP - Failed to create Settings in JavaScript");
   }
 }
 
+namespace
+{
+  ATL::CComPtr<IWebBrowser2> GetParent(IWebBrowser2& browser)
+  {
+    ATL::CComPtr<IDispatch> parentDispatch;
+    if (FAILED(browser.get_Parent(&parentDispatch)) || !parentDispatch)
+    {
+      return nullptr;
+    }
+    // The InternetExplorer application always returns a pointer to itself.
+    if (parentDispatch.IsEqualObject(&browser))
+    {
+      return nullptr;
+    }
+    ATL::CComQIPtr<IServiceProvider> parentDocumentServiceProvider = parentDispatch;
+    if (!parentDocumentServiceProvider)
+    {
+      return nullptr;
+    }
+    ATL::CComPtr<IWebBrowserApp> webBrowserApp;
+    if (FAILED(parentDocumentServiceProvider->QueryService(IID_IWebBrowserApp, &webBrowserApp)) || !webBrowserApp)
+    {
+      return nullptr;
+    }
+    return ATL::CComQIPtr<IWebBrowser2>(webBrowserApp);
+  }
+
+  bool IsFrameWhiteListed(ATL::CComPtr<IWebBrowser2> frame)
+  {
+    if (!frame)
+    {
+      return false;
+    }
+    auto url = GetLocationUrl(*frame);
+    std::vector<std::string> frameHierarchy;
+    while(frame = GetParent(*frame))
+    {
+      frameHierarchy.push_back(ToUtf8String(GetLocationUrl(*frame)));
+    }
+    CPluginClient* client = CPluginClient::GetInstance();
+    return client->IsWhitelistedUrl(url, frameHierarchy)
+        || client->IsElemhideWhitelistedOnDomain(url, frameHierarchy);
+  }
+}
+
 void CPluginTabBase::OnDownloadComplete(IWebBrowser2* browser)
 {
   CPluginClient* client = CPluginClient::GetInstance();
   std::wstring url = GetDocumentUrl();
   if (!client->IsWhitelistedUrl(url) && !client->IsElemhideWhitelistedOnDomain(url))
   {
     m_traverser->TraverseDocument(browser, GetDocumentDomain(), GetDocumentUrl());
   }
   InjectABP(browser);
 }
@@ skipping 169 matching lines @@
           LogQueue::LogPluginError(pluginError.GetErrorCode(), pluginError.GetErrorId(), pluginError.GetErrorSubid(), pluginError.GetErrorDescription(), true, pluginError.GetProcessId(), pluginError.GetThreadId());
         }
 
         // Non-hanging sleep
         Sleep(50);
       }
 
       tabLoopIteration++;
   }
 }