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// Copyright 2017 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 "chrome/renderer/extensions/tabs_hooks_delegate.h"
#include "base/strings/stringprintf.h"
#include "content/public/renderer/v8_value_converter.h"
#include "extensions/common/api/messaging/message.h"
#include "extensions/common/extension.h"
#include "extensions/common/manifest.h"
#include "extensions/renderer/bindings/api_signature.h"
#include "extensions/renderer/get_script_context.h"
#include "extensions/renderer/message_target.h"
#include "extensions/renderer/messaging_util.h"
#include "extensions/renderer/native_renderer_messaging_service.h"
#include "extensions/renderer/script_context.h"
#include "gin/converter.h"
namespace extensions {
namespace {
using RequestResult = APIBindingHooks::RequestResult;
constexpr char kConnect[] = "tabs.connect";
constexpr char kSendMessage[] = "tabs.sendMessage";
constexpr char kSendTabsRequest[] = "tabs.sendRequest";
} // namespace
TabsHooksDelegate::TabsHooksDelegate(
NativeRendererMessagingService* messaging_service)
: messaging_service_(messaging_service) {}
TabsHooksDelegate::~TabsHooksDelegate() {}
RequestResult TabsHooksDelegate::HandleRequest(
const std::string& method_name,
const APISignature* signature,
v8::Local<v8::Context> context,
std::vector<v8::Local<v8::Value>>* arguments,
const APITypeReferenceMap& refs) {
// TODO(devlin): This logic is the same in the RuntimeCustomHooksDelegate -
// would it make sense to share it?
using Handler = RequestResult (TabsHooksDelegate::*)(
ScriptContext*, const std::vector<v8::Local<v8::Value>>&);
static const struct {
Handler handler;
base::StringPiece method;
} kHandlers[] = {
{&TabsHooksDelegate::HandleSendMessage, kSendMessage},
{&TabsHooksDelegate::HandleSendRequest, kSendTabsRequest},
{&TabsHooksDelegate::HandleConnect, kConnect},
};
ScriptContext* script_context = GetScriptContextFromV8ContextChecked(context);
Handler handler = nullptr;
for (const auto& handler_entry : kHandlers) {
if (handler_entry.method == method_name) {
handler = handler_entry.handler;
break;
}
}
if (!handler)
return RequestResult(RequestResult::NOT_HANDLED);
APISignature::V8ParseResult parse_result =
signature->ParseArgumentsToV8(context, *arguments, refs);
if (!parse_result.succeeded()) {
RequestResult result(RequestResult::INVALID_INVOCATION);
result.error = std::move(*parse_result.error);
return result;
}
return (this->*handler)(script_context, *parse_result.arguments);
}
RequestResult TabsHooksDelegate::HandleSendRequest(
ScriptContext* script_context,
const std::vector<v8::Local<v8::Value>>& arguments) {
DCHECK_EQ(3u, arguments.size());
int tab_id = messaging_util::ExtractIntegerId(arguments[0]);
v8::Local<v8::Value> v8_message = arguments[1];
std::string error;
std::unique_ptr<Message> message = messaging_util::MessageFromV8(
script_context->v8_context(), v8_message, &error);
if (!message) {
RequestResult result(RequestResult::INVALID_INVOCATION);
result.error = std::move(error);
return result;
}
v8::Local<v8::Function> response_callback;
if (!arguments[2]->IsNull())
response_callback = arguments[2].As<v8::Function>();
messaging_service_->SendOneTimeMessage(
script_context, MessageTarget::ForTab(tab_id, messaging_util::kNoFrameId),
messaging_util::kSendRequestChannel, false, *message, response_callback);
return RequestResult(RequestResult::HANDLED);
}
RequestResult TabsHooksDelegate::HandleSendMessage(
ScriptContext* script_context,
const std::vector<v8::Local<v8::Value>>& arguments) {
DCHECK_EQ(4u, arguments.size());
int tab_id = messaging_util::ExtractIntegerId(arguments[0]);
messaging_util::MessageOptions options;
if (!arguments[2]->IsNull()) {
options = messaging_util::ParseMessageOptions(
script_context->v8_context(), arguments[2].As<v8::Object>(),
messaging_util::PARSE_FRAME_ID);
}
v8::Local<v8::Value> v8_message = arguments[1];
DCHECK(!v8_message.IsEmpty());
std::string error;
std::unique_ptr<Message> message = messaging_util::MessageFromV8(
script_context->v8_context(), v8_message, &error);
if (!message) {
RequestResult result(RequestResult::INVALID_INVOCATION);
result.error = std::move(error);
return result;
}
v8::Local<v8::Function> response_callback;
if (!arguments[3]->IsNull())
response_callback = arguments[3].As<v8::Function>();
messaging_service_->SendOneTimeMessage(
script_context, MessageTarget::ForTab(tab_id, options.frame_id),
messaging_util::kSendMessageChannel, false, *message, response_callback);
return RequestResult(RequestResult::HANDLED);
}
RequestResult TabsHooksDelegate::HandleConnect(
ScriptContext* script_context,
const std::vector<v8::Local<v8::Value>>& arguments) {
DCHECK_EQ(2u, arguments.size());
int tab_id = messaging_util::ExtractIntegerId(arguments[0]);
messaging_util::MessageOptions options;
if (!arguments[1]->IsNull()) {
options = messaging_util::ParseMessageOptions(
script_context->v8_context(), arguments[1].As<v8::Object>(),
messaging_util::PARSE_FRAME_ID | messaging_util::PARSE_CHANNEL_NAME);
}
gin::Handle<GinPort> port = messaging_service_->Connect(
script_context, MessageTarget::ForTab(tab_id, options.frame_id),
options.channel_name, false);
DCHECK(!port.IsEmpty());
RequestResult result(RequestResult::HANDLED);
result.return_value = port.ToV8();
return result;
}
} // namespace extensions
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