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// Copyright 2014 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.
#include "extensions/renderer/send_request_natives.h"
#include <stdint.h>
#include "base/json/json_reader.h"
#include "base/metrics/histogram_macros.h"
#include "base/timer/elapsed_timer.h"
#include "content/public/renderer/v8_value_converter.h"
#include "extensions/renderer/request_sender.h"
#include "extensions/renderer/script_context.h"
namespace extensions {
SendRequestNatives::SendRequestNatives(RequestSender* request_sender,
ScriptContext* context)
: ObjectBackedNativeHandler(context), request_sender_(request_sender) {}
void SendRequestNatives::AddRoutes() {
RouteHandlerFunction(
"StartRequest",
base::Bind(&SendRequestNatives::StartRequest, base::Unretained(this)));
RouteHandlerFunction("GetGlobal", base::Bind(&SendRequestNatives::GetGlobal,
base::Unretained(this)));
}
// Starts an API request to the browser, with an optional callback. The
// callback will be dispatched to EventBindings::HandleResponse.
void SendRequestNatives::StartRequest(
const v8::FunctionCallbackInfo<v8::Value>& args) {
base::ElapsedTimer timer;
CHECK_EQ(5, args.Length());
std::string name = *v8::String::Utf8Value(args.GetIsolate(), args[0]);
bool has_callback = args[2]->BooleanValue();
bool for_io_thread = args[3]->BooleanValue();
bool preserve_null_in_objects = args[4]->BooleanValue();
int request_id = request_sender_->GetNextRequestId();
args.GetReturnValue().Set(static_cast<int32_t>(request_id));
std::unique_ptr<content::V8ValueConverter> converter =
content::V8ValueConverter::Create();
// See http://crbug.com/149880. The context menus APIs relies on this, but
// we shouldn't really be doing it (e.g. for the sake of the storage API).
converter->SetFunctionAllowed(true);
// See http://crbug.com/694248.
converter->SetConvertNegativeZeroToInt(true);
if (!preserve_null_in_objects)
converter->SetStripNullFromObjects(true);
std::unique_ptr<base::Value> value_args(
converter->FromV8Value(args[1], context()->v8_context()));
if (!value_args.get() || !value_args->is_list()) {
NOTREACHED() << "Unable to convert args passed to StartRequest";
return;
}
if (request_sender_->StartRequest(
context(),
name,
request_id,
has_callback,
for_io_thread,
static_cast<base::ListValue*>(value_args.get()))) {
// TODO(devlin): Would it be useful to partition this data based on
// extension function once we have a suitable baseline? crbug.com/608561.
UMA_HISTOGRAM_TIMES("Extensions.Functions.StartRequestElapsedTime",
timer.Elapsed());
}
}
void SendRequestNatives::GetGlobal(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(1, args.Length());
CHECK(args[0]->IsObject());
v8::Local<v8::Context> v8_context =
v8::Local<v8::Object>::Cast(args[0])->CreationContext();
if (ContextCanAccessObject(context()->v8_context(), v8_context->Global(),
false)) {
args.GetReturnValue().Set(v8_context->Global());
}
}
} // namespace extensions
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