Add support for response filtering (issue #515).

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

libcef_dll/cpptoc/request_handler_cpptoc.cc

@@ -12,6 +12,7 @@
 
 #include "libcef_dll/cpptoc/request_handler_cpptoc.h"
 #include "libcef_dll/cpptoc/resource_handler_cpptoc.h"
+#include "libcef_dll/cpptoc/response_filter_cpptoc.h"
 #include "libcef_dll/ctocpp/auth_callback_ctocpp.h"
 #include "libcef_dll/ctocpp/browser_ctocpp.h"
 #include "libcef_dll/ctocpp/frame_ctocpp.h"
@@ -234,6 +235,44 @@ int CEF_CALLBACK request_handler_on_resource_response(
   return _retval;
 }
 
+struct _cef_response_filter_t* CEF_CALLBACK request_handler_get_resource_response_filter(
+    struct _cef_request_handler_t* self, cef_browser_t* browser,
+    cef_frame_t* frame, cef_request_t* request,
+    struct _cef_response_t* response) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return NULL;
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser);
+  if (!browser)
+    return NULL;
+  // Verify param: frame; type: refptr_diff
+  DCHECK(frame);
+  if (!frame)
+    return NULL;
+  // Verify param: request; type: refptr_diff
+  DCHECK(request);
+  if (!request)
+    return NULL;
+  // Verify param: response; type: refptr_diff
+  DCHECK(response);
+  if (!response)
+    return NULL;
+
+  // Execute
+  CefRefPtr<CefResponseFilter> _retval = CefRequestHandlerCppToC::Get(
+      self)->GetResourceResponseFilter(
+      CefBrowserCToCpp::Wrap(browser),
+      CefFrameCToCpp::Wrap(frame),
+      CefRequestCToCpp::Wrap(request),
+      CefResponseCToCpp::Wrap(response));
+
+  // Return type: refptr_same
+  return CefResponseFilterCppToC::Wrap(_retval);
+}
+
 void CEF_CALLBACK request_handler_on_resource_load_complete(
     struct _cef_request_handler_t* self, cef_browser_t* browser,
     cef_frame_t* frame, cef_request_t* request,
@@ -497,6 +536,8 @@ CefRequestHandlerCppToC::CefRequestHandlerCppToC() {
   GetStruct()->get_resource_handler = request_handler_get_resource_handler;
   GetStruct()->on_resource_redirect = request_handler_on_resource_redirect;
   GetStruct()->on_resource_response = request_handler_on_resource_response;
+  GetStruct()->get_resource_response_filter =
+      request_handler_get_resource_response_filter;
   GetStruct()->on_resource_load_complete =
       request_handler_on_resource_load_complete;
   GetStruct()->get_auth_credentials = request_handler_get_auth_credentials;

libcef_dll/cpptoc/response_filter_cpptoc.cc

@@ -0,0 +1,107 @@
+// 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/cpptoc/response_filter_cpptoc.h"
+
+
+namespace {
+
+// MEMBER FUNCTIONS - Body may be edited by hand.
+
+int CEF_CALLBACK response_filter_init_filter(
+    struct _cef_response_filter_t* self) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return 0;
+
+  // Execute
+  bool _retval = CefResponseFilterCppToC::Get(self)->InitFilter();
+
+  // Return type: bool
+  return _retval;
+}
+
+cef_response_filter_status_t CEF_CALLBACK response_filter_filter(
+    struct _cef_response_filter_t* self, 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) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return RESPONSE_FILTER_ERROR;
+  // Verify param: data_in_read; type: simple_byref
+  DCHECK(data_in_read);
+  if (!data_in_read)
+    return RESPONSE_FILTER_ERROR;
+  // Verify param: data_out; type: simple_byaddr
+  DCHECK(data_out);
+  if (!data_out)
+    return RESPONSE_FILTER_ERROR;
+  // Verify param: data_out_written; type: simple_byref
+  DCHECK(data_out_written);
+  if (!data_out_written)
+    return RESPONSE_FILTER_ERROR;
+  // Unverified params: data_in
+
+  // Translate param: data_in_read; type: simple_byref
+  size_t data_in_readVal = data_in_read?*data_in_read:0;
+  // Translate param: data_out_written; type: simple_byref
+  size_t data_out_writtenVal = data_out_written?*data_out_written:0;
+
+  // Execute
+  cef_response_filter_status_t _retval = CefResponseFilterCppToC::Get(
+      self)->Filter(
+      data_in,
+      data_in_size,
+      data_in_readVal,
+      data_out,
+      data_out_size,
+      data_out_writtenVal);
+
+  // Restore param: data_in_read; type: simple_byref
+  if (data_in_read)
+    *data_in_read = data_in_readVal;
+  // Restore param: data_out_written; type: simple_byref
+  if (data_out_written)
+    *data_out_written = data_out_writtenVal;
+
+  // Return type: simple
+  return _retval;
+}
+
+}  // namespace
+
+
+// CONSTRUCTOR - Do not edit by hand.
+
+CefResponseFilterCppToC::CefResponseFilterCppToC() {
+  GetStruct()->init_filter = response_filter_init_filter;
+  GetStruct()->filter = response_filter_filter;
+}
+
+template<> CefRefPtr<CefResponseFilter> CefCppToC<CefResponseFilterCppToC,
+    CefResponseFilter, cef_response_filter_t>::UnwrapDerived(
+    CefWrapperType type, cef_response_filter_t* s) {
+  NOTREACHED() << "Unexpected class type: " << type;
+  return NULL;
+}
+
+#ifndef NDEBUG
+template<> base::AtomicRefCount CefCppToC<CefResponseFilterCppToC,
+    CefResponseFilter, cef_response_filter_t>::DebugObjCt = 0;
+#endif
+
+template<> CefWrapperType CefCppToC<CefResponseFilterCppToC, CefResponseFilter,
+    cef_response_filter_t>::kWrapperType = WT_RESPONSE_FILTER;

libcef_dll/cpptoc/response_filter_cpptoc.h

@@ -0,0 +1,35 @@
+// 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_CPPTOC_RESPONSE_FILTER_CPPTOC_H_
+#define CEF_LIBCEF_DLL_CPPTOC_RESPONSE_FILTER_CPPTOC_H_
+#pragma once
+
+#ifndef USING_CEF_SHARED
+#pragma message("Warning: "__FILE__" may be accessed wrapper-side only")
+#else  // USING_CEF_SHARED
+
+#include "include/cef_response_filter.h"
+#include "include/capi/cef_response_filter_capi.h"
+#include "libcef_dll/cpptoc/cpptoc.h"
+
+// Wrap a C++ class with a C structure.
+// This class may be instantiated and accessed wrapper-side only.
+class CefResponseFilterCppToC
+    : public CefCppToC<CefResponseFilterCppToC, CefResponseFilter,
+        cef_response_filter_t> {
+ public:
+  CefResponseFilterCppToC();
+};
+
+#endif  // USING_CEF_SHARED
+#endif  // CEF_LIBCEF_DLL_CPPTOC_RESPONSE_FILTER_CPPTOC_H_