snapcast/server/jsonrpc.h
2015-12-03 21:53:56 +01:00

129 lines
2.9 KiB
C++

/***
This file is part of snapcast
Copyright (C) 2015 Johannes Pohl
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#ifndef JSON_RPC_H
#define JSON_RPC_H
#include <string>
#include <vector>
#include "json.hpp"
#include "common/snapException.h"
using Json = nlohmann::json;
class JsonRequest
{
public:
/// ctor. Encoded PCM data is passed to the PipeListener
JsonRequest();
void parse(const std::string& json);
int id;
std::string method;
std::vector<std::string> params;
Json getResponse(const Json& result);
Json getError(int code, const std::string& message);
protected:
Json json_;
};
class JsonRequestException : public SnapException
{
int errorCode_, id_;
public:
JsonRequestException(const char* text, int errorCode = 0, int id = -1) : SnapException(text), errorCode_(errorCode), id_(id)
{
}
JsonRequestException(const std::string& text, int errorCode = 0, int id = -1) : SnapException(text), errorCode_(errorCode), id_(id)
{
}
JsonRequestException(const JsonRequest& request, const std::string& text, int errorCode = 0) : SnapException(text), errorCode_(errorCode), id_(request.id)
{
}
JsonRequestException(const JsonRequestException& e) : SnapException(e.what()), errorCode_(e.errorCode()), id_(e.id_)
{
}
virtual int errorCode() const noexcept
{
return errorCode_;
}
Json getResponse() const noexcept
{
int errorCode = errorCode_;
if (errorCode == 0)
errorCode = -32603;
Json response = {
{"jsonrpc", "2.0"},
{"error", {
{"code", errorCode},
{"message", what()}
}},
};
if (id_ == -1)
response["id"] = nullptr;
else
response["id"] = id_;
return response;
}
};
class JsonMethodNotFoundException : public JsonRequestException
{
public:
JsonMethodNotFoundException(const JsonRequest& request) : JsonRequestException(request, "method not found", -32601)
{
}
JsonMethodNotFoundException(const JsonRequest& request, const std::string& message) : JsonRequestException(request, message, -32601)
{
}
};
class JsonInvalidParamsException : public JsonRequestException
{
public:
JsonInvalidParamsException(const JsonRequest& request) : JsonRequestException(request, "invalid params", -32602)
{
}
JsonInvalidParamsException(const JsonRequest& request, const std::string& message) : JsonRequestException(request, message, -32602)
{
}
};
#endif