Add support for response filtering (issue #515).

- Add a new CefRequestHandler::GetResourceResponseFilter method and
  CefResponseFilter class.

libcef_dll/ctocpp/request_handler_ctocpp.cc

@@ -19,6 +19,7 @@
 #include "libcef_dll/cpptoc/sslinfo_cpptoc.h"
 #include "libcef_dll/ctocpp/request_handler_ctocpp.h"
 #include "libcef_dll/ctocpp/resource_handler_ctocpp.h"
+#include "libcef_dll/ctocpp/response_filter_ctocpp.h"
 
 
 // VIRTUAL METHODS - Body may be edited by hand.
@@ -226,6 +227,44 @@ bool CefRequestHandlerCToCpp::OnResourceResponse(CefRefPtr<CefBrowser> browser,
   return _retval?true:false;
 }
 
+CefRefPtr<CefResponseFilter> CefRequestHandlerCToCpp::GetResourceResponseFilter(
+    CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
+    CefRefPtr<CefRequest> request, CefRefPtr<CefResponse> response) {
+  cef_request_handler_t* _struct = GetStruct();
+  if (CEF_MEMBER_MISSING(_struct, get_resource_response_filter))
+    return NULL;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser.get());
+  if (!browser.get())
+    return NULL;
+  // Verify param: frame; type: refptr_diff
+  DCHECK(frame.get());
+  if (!frame.get())
+    return NULL;
+  // Verify param: request; type: refptr_diff
+  DCHECK(request.get());
+  if (!request.get())
+    return NULL;
+  // Verify param: response; type: refptr_diff
+  DCHECK(response.get());
+  if (!response.get())
+    return NULL;
+
+  // Execute
+  cef_response_filter_t* _retval = _struct->get_resource_response_filter(
+      _struct,
+      CefBrowserCppToC::Wrap(browser),
+      CefFrameCppToC::Wrap(frame),
+      CefRequestCppToC::Wrap(request),
+      CefResponseCppToC::Wrap(response));
+
+  // Return type: refptr_same
+  return CefResponseFilterCToCpp::Wrap(_retval);
+}
+
 void CefRequestHandlerCToCpp::OnResourceLoadComplete(
     CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
     CefRefPtr<CefRequest> request, CefRefPtr<CefResponse> response,

libcef_dll/ctocpp/request_handler_ctocpp.h

@@ -48,6 +48,10 @@ class CefRequestHandlerCToCpp
   bool OnResourceResponse(CefRefPtr<CefBrowser> browser,
       CefRefPtr<CefFrame> frame, CefRefPtr<CefRequest> request,
       CefRefPtr<CefResponse> response) override;
+  CefRefPtr<CefResponseFilter> GetResourceResponseFilter(
+      CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
+      CefRefPtr<CefRequest> request,
+      CefRefPtr<CefResponse> response) override;
   void OnResourceLoadComplete(CefRefPtr<CefBrowser> browser,
       CefRefPtr<CefFrame> frame, CefRefPtr<CefRequest> request,
       CefRefPtr<CefResponse> response, URLRequestStatus status,

libcef_dll/ctocpp/response_filter_ctocpp.cc

@@ -0,0 +1,79 @@
+// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#include "libcef_dll/ctocpp/response_filter_ctocpp.h"
+
+
+// VIRTUAL METHODS - Body may be edited by hand.
+
+bool CefResponseFilterCToCpp::InitFilter() {
+  cef_response_filter_t* _struct = GetStruct();
+  if (CEF_MEMBER_MISSING(_struct, init_filter))
+    return false;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  int _retval = _struct->init_filter(_struct);
+
+  // Return type: bool
+  return _retval?true:false;
+}
+
+CefResponseFilter::FilterStatus CefResponseFilterCToCpp::Filter(void* data_in,
+    size_t data_in_size, size_t& data_in_read, void* data_out,
+    size_t data_out_size, size_t& data_out_written) {
+  cef_response_filter_t* _struct = GetStruct();
+  if (CEF_MEMBER_MISSING(_struct, filter))
+    return RESPONSE_FILTER_ERROR;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Verify param: data_out; type: simple_byaddr
+  DCHECK(data_out);
+  if (!data_out)
+    return RESPONSE_FILTER_ERROR;
+  // Unverified params: data_in
+
+  // Execute
+  cef_response_filter_status_t _retval = _struct->filter(_struct,
+      data_in,
+      data_in_size,
+      &data_in_read,
+      data_out,
+      data_out_size,
+      &data_out_written);
+
+  // Return type: simple
+  return _retval;
+}
+
+
+// CONSTRUCTOR - Do not edit by hand.
+
+CefResponseFilterCToCpp::CefResponseFilterCToCpp() {
+}
+
+template<> cef_response_filter_t* CefCToCpp<CefResponseFilterCToCpp,
+    CefResponseFilter, cef_response_filter_t>::UnwrapDerived(
+    CefWrapperType type, CefResponseFilter* c) {
+  NOTREACHED() << "Unexpected class type: " << type;
+  return NULL;
+}
+
+#ifndef NDEBUG
+template<> base::AtomicRefCount CefCToCpp<CefResponseFilterCToCpp,
+    CefResponseFilter, cef_response_filter_t>::DebugObjCt = 0;
+#endif
+
+template<> CefWrapperType CefCToCpp<CefResponseFilterCToCpp, CefResponseFilter,
+    cef_response_filter_t>::kWrapperType = WT_RESPONSE_FILTER;

libcef_dll/ctocpp/response_filter_ctocpp.h

@@ -0,0 +1,41 @@
+// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#ifndef CEF_LIBCEF_DLL_CTOCPP_RESPONSE_FILTER_CTOCPP_H_
+#define CEF_LIBCEF_DLL_CTOCPP_RESPONSE_FILTER_CTOCPP_H_
+#pragma once
+
+#ifndef BUILDING_CEF_SHARED
+#pragma message("Warning: "__FILE__" may be accessed DLL-side only")
+#else  // BUILDING_CEF_SHARED
+
+#include "include/cef_response_filter.h"
+#include "include/capi/cef_response_filter_capi.h"
+#include "libcef_dll/ctocpp/ctocpp.h"
+
+// Wrap a C structure with a C++ class.
+// This class may be instantiated and accessed DLL-side only.
+class CefResponseFilterCToCpp
+    : public CefCToCpp<CefResponseFilterCToCpp, CefResponseFilter,
+        cef_response_filter_t> {
+ public:
+  CefResponseFilterCToCpp();
+
+  // CefResponseFilter methods.
+  bool InitFilter() override;
+  FilterStatus Filter(void* data_in, size_t data_in_size, size_t& data_in_read,
+      void* data_out, size_t data_out_size,
+      size_t& data_out_written) override;
+};
+
+#endif  // BUILDING_CEF_SHARED
+#endif  // CEF_LIBCEF_DLL_CTOCPP_RESPONSE_FILTER_CTOCPP_H_