Initial script request detector.

chrome/browser/safe_browsing/incident_reporting/script_request_detector.h

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_SCRIPT_REQUEST_DETECTOR_H_
+#define CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_SCRIPT_REQUEST_DETECTOR_H_
+
+#include "base/containers/hash_tables.h"
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/safe_browsing/incident_reporting/incident_receiver.h"
+
+namespace net {
+class URLRequest;
+}
+
+namespace safe_browsing {
+
+class ClientIncidentReport_IncidentData_ScriptRequestIncident;
+
+// Observes network requests and reports suspicious activity.
+class ScriptRequestDetector {
+ public:
+  explicit ScriptRequestDetector(
+      scoped_ptr<IncidentReceiver> incident_receiver);
+  ~ScriptRequestDetector();
+
+  // Analyzes the |request| and triggers an incident report on suspicious
+  // script inclusion.
+  void OnResourceRequest(const net::URLRequest* request);
+
+ protected:
+  // Testing hook.
+  void set_allow_null_profile_for_testing(bool allow_null_profile_for_testing);
+
+ private:
+  void InitializeScriptSet();
+
+  void ReportIncidentOnUIThread(
+      int render_process_id,
+      int render_frame_id,
+      scoped_ptr<ClientIncidentReport_IncidentData_ScriptRequestIncident>
+          incident_data);
+
+  scoped_ptr<IncidentReceiver> incident_receiver_;
+  base::hash_set<std::string> script_set_;
+  bool allow_null_profile_for_testing_;
+
+  base::WeakPtrFactory<ScriptRequestDetector> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScriptRequestDetector);
+};
+
+}  // namespace safe_browsing
+
+#endif  // CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_SCRIPT_REQUEST_DETECTOR_H_