extensions/renderer/api_activity_logger.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <string>
   6
   7 #include "base/bind.h"
   8 #include "content/public/child/v8_value_converter.h"
   9 #include "content/public/renderer/render_thread.h"
  10 #include "extensions/common/extension_messages.h"
  11 #include "extensions/renderer/activity_log_converter_strategy.h"
  12 #include "extensions/renderer/api_activity_logger.h"
  13 #include "extensions/renderer/script_context.h"
  14
  15 using content::V8ValueConverter;
  16
  17 namespace extensions {
  18
  19 APIActivityLogger::APIActivityLogger(ScriptContext* context)
  20     : ObjectBackedNativeHandler(context) {
  21   RouteFunction("LogEvent", base::Bind(&APIActivityLogger::LogEvent));
  22   RouteFunction("LogAPICall", base::Bind(&APIActivityLogger::LogAPICall));
  23 }
  24
  25 // static
  26 void APIActivityLogger::LogAPICall(
  27     const v8::FunctionCallbackInfo<v8::Value>& args) {
  28   LogInternal(APICALL, args);
  29 }
  30
  31 // static
  32 void APIActivityLogger::LogEvent(
  33     const v8::FunctionCallbackInfo<v8::Value>& args) {
  34   LogInternal(EVENT, args);
  35 }
  36
  37 // static
  38 void APIActivityLogger::LogInternal(
  39     const CallType call_type,
  40     const v8::FunctionCallbackInfo<v8::Value>& args) {
  41   DCHECK_GT(args.Length(), 2);
  42   DCHECK(args[0]->IsString());
  43   DCHECK(args[1]->IsString());
  44   DCHECK(args[2]->IsArray());
  45
  46   std::string ext_id = *v8::String::Utf8Value(args[0]);
  47   ExtensionHostMsg_APIActionOrEvent_Params params;
  48   params.api_call = *v8::String::Utf8Value(args[1]);
  49   if (args.Length() == 4)  // Extras are optional.
  50     params.extra = *v8::String::Utf8Value(args[3]);
  51   else
  52     params.extra = "";
  53
  54   // Get the array of api call arguments.
  55   v8::Local<v8::Array> arg_array = v8::Local<v8::Array>::Cast(args[2]);
  56   if (arg_array->Length() > 0) {
  57     scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
  58     ActivityLogConverterStrategy strategy;
  59     converter->SetFunctionAllowed(true);
  60     converter->SetStrategy(&strategy);
  61     scoped_ptr<base::ListValue> arg_list(new base::ListValue());
  62     for (size_t i = 0; i < arg_array->Length(); ++i) {
  63       arg_list->Set(
  64           i,
  65           converter->FromV8Value(arg_array->Get(i),
  66                                  args.GetIsolate()->GetCurrentContext()));
  67     }
  68     params.arguments.Swap(arg_list.get());
  69   }
  70
  71   if (call_type == APICALL) {
  72     content::RenderThread::Get()->Send(
  73         new ExtensionHostMsg_AddAPIActionToActivityLog(ext_id, params));
  74   } else if (call_type == EVENT) {
  75     content::RenderThread::Get()->Send(
  76         new ExtensionHostMsg_AddEventToActivityLog(ext_id, params));
  77   }
  78 }
  79
  80 }  // namespace extensions