[DevTools] Implementation of resource requests blocked by specific urls.

Source/core/inspector/InspectorResourceAgent.cpp

 /*
  * Copyright (C) 2011 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
@@ skipping 67 matching lines @@
 typedef blink::InspectorBackendDispatcher::NetworkCommandHandler::GetResponseBodyCallback GetResponseBodyCallback;
 
 namespace blink {
 
 namespace ResourceAgentState {
 static const char resourceAgentEnabled[] = "resourceAgentEnabled";
 static const char extraRequestHeaders[] = "extraRequestHeaders";
 static const char cacheDisabled[] = "cacheDisabled";
 static const char userAgentOverride[] = "userAgentOverride";
 static const char monitoringXHR[] = "monitoringXHR";
+static const char blockedURLs[] = "blockedURLs";
 }
 
 namespace {
 
 // Keep in sync with kDevToolsRequestInitiator defined in devtools_network_controller.cc
 const char kDevToolsEmulateNetworkConditionsClientId[] = "X-DevTools-Emulate-Network-Conditions-Client-Id";
 
 static PassRefPtr<JSONObject> buildObjectForHeaders(const HTTPHeaderMap& headers)
 {
     RefPtr<JSONObject> headersObject = JSONObject::create();
@@ skipping 244 matching lines @@
 
 DEFINE_TRACE(InspectorResourceAgent)
 {
     visitor->trace(m_pageAgent);
     visitor->trace(m_replayXHRs);
     visitor->trace(m_replayXHRsToBeDeleted);
     visitor->trace(m_pendingXHRReplayData);
     InspectorBaseAgent::trace(visitor);
 }
 
+bool InspectorResourceAgent::shouldBlockRequest(const ResourceRequest& request)
+{
+    String url = request.url().string();
+    RefPtr<JSONObject> blockedURLs = m_state->getObject(ResourceAgentState::blockedURLs);
+    for (const auto& blocked : *blockedURLs) {
+        if (url.contains(blocked.key))
+            return true;
+    }
+    return false;
+}
+
 void InspectorResourceAgent::willSendRequest(unsigned long identifier, DocumentLoader* loader, ResourceRequest& request, const ResourceResponse& redirectResponse, const FetchInitiatorInfo& initiatorInfo)
 {
     // Ignore the request initiated internally.
     if (initiatorInfo.name == FetchInitiatorTypeNames::internal)
         return;
 
     if (initiatorInfo.name == FetchInitiatorTypeNames::document && loader->substituteData().isValid())
         return;
 
     String requestId = IdentifiersFactory::requestId(identifier);
@@ skipping 495 matching lines @@
             return;
         }
     }
 
     if (getResponseBodyBlob(requestId, callback))
         return;
 
     callback->sendFailure("No data found for resource with given identifier");
 }
 
+void InspectorResourceAgent::addBlockedURL(ErrorString*, const String& url)
+{
+    RefPtr<JSONObject> blockedURLs = m_state->getObject(ResourceAgentState::blockedURLs);
+    blockedURLs->setBoolean(url, true);
+    m_state->setObject(ResourceAgentState::blockedURLs, blockedURLs.release());
+}
+
+void InspectorResourceAgent::removeBlockedURL(ErrorString*, const String& url)
+{
+    RefPtr<JSONObject> blockedURLs = m_state->getObject(ResourceAgentState::blockedURLs);
+    blockedURLs->remove(url);
+    m_state->setObject(ResourceAgentState::blockedURLs, blockedURLs.release());
+}
+
 void InspectorResourceAgent::replayXHR(ErrorString*, const String& requestId)
 {
     String actualRequestId = requestId;
 
     XHRReplayData* xhrReplayData = m_resourcesData->xhrReplayData(requestId);
     if (!xhrReplayData)
         return;
 
     ExecutionContext* executionContext = xhrReplayData->executionContext();
     if (!executionContext) {
@@ skipping 111 matching lines @@
     , m_removeFinishedReplayXHRTimer(this, &InspectorResourceAgent::removeFinishedReplayXHRFired)
 {
 }
 
 bool InspectorResourceAgent::shouldForceCORSPreflight()
 {
     return m_state->getBoolean(ResourceAgentState::cacheDisabled);
 }
 
 } // namespace blink