static void JRPCHandler(IApplicationBuilder app)
{
app.Run(async ctx =>
{
ctx.Response.ContentType = "application/json";
var jres = new JRPCResponse();
try
{
string body;
using (var sr = new StreamReader(ctx.Request.Body, encoding: Encoding.UTF8))
{
body = sr.ReadToEnd();
}
//var rpcReq = new RPCRequest { Ctx = ctx };
var rpcReq = new RPCRequest
{
AccessToken = GetJWT(ctx.Request.Headers)
};
try
{
var jreq = RPCPacker.Unpack <JRPCRequest>(body);
// allow methodName path e.g. /jrpc/{methodName}
rpcReq.RPCFuncName = jreq.Method;
if (string.IsNullOrWhiteSpace(rpcReq.RPCFuncName) && ctx.Request.Path.HasValue)
{
rpcReq.RPCFuncName = rxLeadingSlashs.Replace(ctx.Request.Path.Value, "").ToLower();
}
// 允許 body 就直接是 PackedData e.g. { "Msg": "Hello" }
rpcReq.PackedData = jreq.Params != null ? jreq.Params.ToString() : body;
jres.Id = jreq.Id;
}
catch (Exception e)
{
jres.Error = new JRPCError(JRPCError.PARSE_ERROR, e.Message);
await ctx.Response.WriteAsync(RPCPacker.Pack(jres, true));
}
//var rpcResponse = await RPCServer.ExecuteAsync(rpcReq);
//jres.Result = new JRaw(rpcResponse.PackedData);
if (RPCServer.CheckAuthorized(rpcReq))
{
var rpcResponse = await RPCServer.ExecuteAsync(rpcReq);
jres.Result = new JRaw(rpcResponse.PackedData);
}
else
{
jres.Error = new JRPCError(401, "Permission denied", null);
}
}
catch (JRPCException ex)
{
// 預期的錯誤
jres.Error = new JRPCError(1, ex.Message, null);
ctx.Response.StatusCode = ex.HttpStatusCode;
}
catch (JRPCMethodNotFoundException ex)
{
jres.Error = new JRPCError(JRPCError.METHOD_NOT_FOUND, ex.Message);
}
catch (Newtonsoft.Json.JsonSerializationException ex)
{
jres.Error = new JRPCError(JRPCError.INVALID_PARAMS, ex.Message);
}
catch (Exception ex)
{
jres.Error = new JRPCError(JRPCError.INTERNAL_ERROR, ex.Message);
}
await ctx.Response.WriteAsync(RPCPacker.Pack(jres, true));
});
}