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json rpc basics

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badaix 2015-08-31 23:40:41 +02:00
parent 1b579ed2a6
commit 6121fdceae
6 changed files with 120 additions and 73 deletions
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125
server/controlServer.cpp
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@ -16,6 +16,7 @@
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "boost/lexical_cast.hpp"
#include "controlServer.h"
#include "message/time.h"
#include "message/ack.h"
@ -23,7 +24,7 @@
#include "message/command.h"
#include "common/log.h"
#include "common/snapException.h"
#include "json.hpp"
#include "jsonrpc.h"
#include <iostream>
using namespace std;
@ -81,91 +82,81 @@ void ControlServer::onMessageReceived(ControlSession* connection, const std::str
}
else
{
int id = -1;
try
{
// http://www.jsonrpc.org/specification
// code message meaning
// -32700 Parse error Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text.
// -32600 Invalid Request The JSON sent is not a valid Request object.
JsonRequest jsonRequest;
jsonRequest.parse(message);
//{"jsonrpc": "2.0", "method": "get", "id": 2}
//{"jsonrpc": "2.0", "method": "get", "params": ["status"], "id": 2}
//{"jsonrpc": "2.0", "method": "get", "params": ["status", "server"], "id": 2}
//{"jsonrpc": "2.0", "method": "get", "params": ["status", "client"], "id": 2}
//{"jsonrpc": "2.0", "method": "get", "params": ["status", "client", "MAC"], "id": 2}
//{"jsonrpc": "2.0", "method": "test", "params": ["status", "client", "MAC"], "id": 2}
//{"jsonrpc": "2.0", "method": "set", "params": ["voume", "client", "MAC", "1.0"], "id": 2}
// -32601 Method not found The method does not exist / is not available.
// -32602 Invalid params Invalid method parameter(s).
// -32603 Internal error Internal JSON-RPC error.
// -32000 to -32099 Server error Reserved for implementation-defined server-errors.
json request;
try
logO << "method: " << jsonRequest.method << ", " << "id: " << jsonRequest.id << "\n";
for (string s: jsonRequest.params)
logO << "param: " << s << "\n";
if (jsonRequest.params.empty())
throw JsonInvalidParamsException(jsonRequest);
vector<string>& params = jsonRequest.params;
if (jsonRequest.method == "get")
{
try
if (params[0] == "status")
{
request = json::parse(message);
}
catch (const exception& e)
{
throw SnapException(e.what(), -32700);
}
id = request["id"].get<int>();
string jsonrpc = request["jsonrpc"].get<string>();
if (jsonrpc != "2.0")
throw SnapException("invalid jsonrpc value: " + jsonrpc, -32600);
string method = request["method"].get<string>();
if (method.empty())
throw SnapException("method must not be empty", -32600);
if (id < 0)
throw SnapException("id must be a positive integer", -32600);
json response = {
{"jsonrpc", "2.0"},
{"id", id}
};
if (method == "get")
{
response["result"] = "???";//nullptr;
}
else if (method == "set")
{
response["result"] = "234";//nullptr;
}
else
throw SnapException("method not found: \"" + method + "\"", -32601);
connection->send(response.dump());
throw JsonInvalidParamsException(jsonRequest);
}
catch (const SnapException& e)
else if (jsonRequest.method == "set")
{
throw;
if (params[0] == "volume")
{
if ((params.size() < 4) || (params[1] != "client"))
throw JsonInvalidParamsException(jsonRequest);
try
{
double volume = boost::lexical_cast<double>(params[3]);
}
catch(...)
{
throw JsonInvalidParamsException(jsonRequest);
}
}
else if (params[0] == "latency")
{
if ((params.size() < 3) || (params[1] != "client"))
throw JsonInvalidParamsException(jsonRequest);
}
else
throw JsonInvalidParamsException(jsonRequest);
}
catch (const exception& e)
{
throw SnapException(e.what(), -32603);
}
}
catch (const SnapException& e)
{
int errorCode = e.errorCode();
if (errorCode == 0)
errorCode = -32603;
else
throw JsonMethodNotFoundException(jsonRequest);
json response = {
{"jsonrpc", "2.0"},
{"test", "123"},
{"error", {
{"code", errorCode},
{"message", e.what()}
}},
};
if (id == -1)
response["id"] = nullptr;
else
response["id"] = id;
{"code", 12},
{"message", true}
}}};
connection->send(response.dump());
connection->send(jsonRequest.getResponse(response).dump());
}
catch (const JsonRequestException& e)
{
connection->send(e.getResponse().dump());
}
}
//get status
//get status server
//get status client[:MAC]
//set volume client[:MAC] {VOLUME}
}