chrome/renderer/extensions/api_activity_logger.cc

   1 // Copyright (c) 2013 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 #include "base/bind.h"
   7 #include "chrome/common/extensions/extension_messages.h"
   8 #include "chrome/renderer/chrome_render_process_observer.h"
   9 #include "chrome/renderer/extensions/api_activity_logger.h"
  10 #include "content/public/renderer/render_thread.h"
  11 #include "content/public/renderer/v8_value_converter.h"
  12
  13 using content::V8ValueConverter;
  14
  15 namespace extensions {
  16
  17 APIActivityLogger::APIActivityLogger(
  18     Dispatcher* dispatcher, v8::Handle<v8::Context> v8_context)
  19     : ChromeV8Extension(dispatcher, v8_context) {
  20   RouteFunction("LogEvent", base::Bind(&APIActivityLogger::LogEvent));
  21   RouteFunction("LogAPICall", base::Bind(&APIActivityLogger::LogAPICall));
  22 }
  23
  24 // static
  25 v8::Handle<v8::Value> APIActivityLogger::LogAPICall(const v8::Arguments& args) {
  26   LogInternal(APICALL, args);
  27   return v8::Undefined();
  28 }
  29
  30 // static
  31 v8::Handle<v8::Value> APIActivityLogger::LogEvent(const v8::Arguments& args) {
  32   LogInternal(EVENT, args);
  33   return v8::Undefined();
  34 }
  35
  36 // static
  37 void APIActivityLogger::LogInternal(const CallType call_type,
  38                                     const v8::Arguments& args) {
  39   DCHECK_GT(args.Length(), 2);
  40   DCHECK(args[0]->IsString());
  41   DCHECK(args[1]->IsString());
  42   DCHECK(args[2]->IsArray());
  43
  44   std::string ext_id = *v8::String::AsciiValue(args[0]->ToString());
  45   ExtensionHostMsg_APIActionOrEvent_Params params;
  46   params.api_call = *v8::String::AsciiValue(args[1]->ToString());
  47   if (args.Length() == 4)  // Extras are optional.
  48     params.extra = *v8::String::AsciiValue(args[3]->ToString());
  49   else
  50     params.extra = "";
  51
  52   // Get the array of api call arguments.
  53   v8::Local<v8::Array> arg_array = v8::Local<v8::Array>::Cast(args[2]);
  54   if (arg_array->Length() > 0) {
  55     scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
  56     scoped_ptr<ListValue> arg_list(new ListValue());
  57     for (size_t i = 0; i < arg_array->Length(); ++i) {
  58       arg_list->Set(i,
  59                     converter->FromV8Value(arg_array->Get(i),
  60                     v8::Context::GetCurrent()));
  61     }
  62     params.arguments.Swap(arg_list.get());
  63   }
  64
  65   if (call_type == APICALL) {
  66     content::RenderThread::Get()->Send(
  67         new ExtensionHostMsg_AddAPIActionToActivityLog(ext_id, params));
  68   } else if (call_type == EVENT) {
  69     content::RenderThread::Get()->Send(
  70         new ExtensionHostMsg_AddEventToActivityLog(ext_id, params));
  71   }
  72 }
  73
  74
  75 }  // namespace extensions
  76