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// Copyright (c) 2013 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/browser/devtools/devtools_protocol.h"
#include "base/json/json_reader.h"
#include "base/json/json_writer.h"
#include "base/strings/stringprintf.h"
namespace {
const char kErrorCodeParam[] = "code";
const char kErrorParam[] = "error";
const char kErrorMessageParam[] = "message";
const char kIdParam[] = "id";
const char kMethodParam[] = "method";
const char kParamsParam[] = "params";
const char kResultParam[] = "result";
// JSON RPC 2.0 spec: http://www.jsonrpc.org/specification#error_object
enum Error {
kErrorInvalidParams = -32602
};
} // namespace
DevToolsProtocol::Message::~Message() {
}
DevToolsProtocol::Message::Message(const std::string& method,
base::DictionaryValue* params)
: method_(method),
params_(params ? params->DeepCopy() : NULL) {
}
DevToolsProtocol::Command::Command(int id,
const std::string& method,
base::DictionaryValue* params)
: Message(method, params),
id_(id) {
}
DevToolsProtocol::Command::~Command() {
}
std::string DevToolsProtocol::Command::Serialize() {
base::DictionaryValue command;
command.SetInteger(kIdParam, id_);
command.SetString(kMethodParam, method_);
if (params_)
command.Set(kParamsParam, params_->DeepCopy());
std::string json_command;
base::JSONWriter::Write(&command, &json_command);
return json_command;
}
scoped_ptr<DevToolsProtocol::Response>
DevToolsProtocol::Command::SuccessResponse(base::DictionaryValue* result) {
return scoped_ptr<DevToolsProtocol::Response>(
new DevToolsProtocol::Response(id_, result));
}
scoped_ptr<DevToolsProtocol::Response>
DevToolsProtocol::Command::InvalidParamResponse(const std::string& param) {
std::string message =
base::StringPrintf("Missing or invalid '%s' parameter", param.c_str());
return scoped_ptr<DevToolsProtocol::Response>(
new DevToolsProtocol::Response(id_, kErrorInvalidParams, message));
}
DevToolsProtocol::Notification::~Notification() {
}
DevToolsProtocol::Notification::Notification(const std::string& method,
base::DictionaryValue* params)
: Message(method, params) {
}
DevToolsProtocol::Response::~Response() {
}
DevToolsProtocol::Response::Response(int id,
int error_code,
const std::string error_message)
: id_(id),
error_code_(error_code),
error_message_(error_message) {
}
DevToolsProtocol::Response::Response(int id, base::DictionaryValue* result)
: id_(id),
error_code_(0),
result_(result) {
}
base::DictionaryValue* DevToolsProtocol::Response::Serialize() {
base::DictionaryValue* response = new base::DictionaryValue();
response->SetInteger(kIdParam, id_);
if (error_code_) {
base::DictionaryValue* error_object = new base::DictionaryValue();
response->Set(kErrorParam, error_object);
error_object->SetInteger(kErrorCodeParam, error_code_);
if (!error_message_.empty())
error_object->SetString(kErrorMessageParam, error_message_);
} else if (result_) {
response->Set(kResultParam, result_->DeepCopy());
}
return response;
}
// static
DevToolsProtocol::Command* DevToolsProtocol::ParseCommand(
base::DictionaryValue* command_dict) {
if (!command_dict)
return NULL;
int id;
if (!command_dict->GetInteger(kIdParam, &id) || id < 0)
return NULL;
std::string method;
if (!command_dict->GetString(kMethodParam, &method))
return NULL;
base::DictionaryValue* params = NULL;
command_dict->GetDictionary(kParamsParam, ¶ms);
return new Command(id, method, params);
}
// static
DevToolsProtocol::Notification* DevToolsProtocol::ParseNotification(
const std::string& json) {
scoped_ptr<base::Value> value(base::JSONReader::Read(json));
if (!value || !value->IsType(base::Value::TYPE_DICTIONARY))
return NULL;
scoped_ptr<base::DictionaryValue> dict(
static_cast<base::DictionaryValue*>(value.release()));
std::string method;
if (!dict->GetString(kMethodParam, &method))
return NULL;
base::DictionaryValue* params = NULL;
dict->GetDictionary(kParamsParam, ¶ms);
return new Notification(method, params);
}
DevToolsProtocol::Response* DevToolsProtocol::ParseResponse(
const std::string& json) {
scoped_ptr<base::Value> value(base::JSONReader::Read(json));
if (!value || !value->IsType(base::Value::TYPE_DICTIONARY))
return NULL;
scoped_ptr<base::DictionaryValue> dict(
static_cast<base::DictionaryValue*>(value.release()));
int id;
if (!dict->GetInteger(kIdParam, &id))
return NULL;
int error_code = 0;
base::DictionaryValue* error_dict = NULL;
if (dict->GetDictionary(kErrorParam, &error_dict))
error_dict->GetInteger(kErrorCodeParam, &error_code);
return new Response(id, error_code, std::string());
}
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