public async Task ProcessAsync(HttpContext context)
{
JObject jsonParam = null;
try
{
context.Response.ContentType = "application/json;charset=UTF-8";
context.Response.Headers["Access-Control-Allow-Origin"] = "*";
context.Response.Headers["Access-Control-Allow-Methods"] = "GET, POST";
context.Response.Headers["Access-Control-Allow-Headers"] = "Content-Type";
context.Response.Headers["Access-Control-Max-Age"] = "31536000";
if (context.Request.Method == "GET")
{
string jsonrpc = context.Request.Query["jsonrpc"];
string id = context.Request.Query["id"];
string _method = context.Request.Query["method"];
string _params = context.Request.Query["params"];
if (jsonrpc == null)
{
throw new Exception("do not have element:jsonrpc");
}
if (id == null)
{
throw new Exception("do not have element:id");
}
if (_method == null)
{
throw new Exception("do not have element:method");
}
if (_params == null)
{
throw new Exception("do not have element:params");
}
jsonParam = new JObject();
jsonParam["jsonrpc"] = jsonrpc;
jsonParam["id"] = id;
jsonParam["method"] = _method;
jsonParam["params"] = JArray.Parse(_params);
}
else if (context.Request.Method == "POST")
{
var ctype = context.Request.ContentType;
if (ctype == "application/x-www-form-urlencoded" || (ctype.IndexOf("multipart/form-data;") == 0))
{
var form = await FormData.FromRequest(context.Request);
var _jsonrpc = form.mapParams["jsonrpc"];
var _id = form.mapParams["id"];
var _method = form.mapParams["method"];
var _strparams = form.mapParams["params"];
if (_jsonrpc == null)
{
throw new Exception("do not have element:jsonrpc");
}
if (_id == null)
{
throw new Exception("do not have element:id");
}
if (_method == null)
{
throw new Exception("do not have element:method");
}
if (_strparams == null)
{
throw new Exception("do not have element:params");
}
jsonParam = new JObject();
jsonParam["jsonrpc"] = _jsonrpc;
jsonParam["id"] = long.Parse(_id);
jsonParam["method"] = _method;
jsonParam["params"] = JArray.Parse(_strparams);
}
else
{
var text = await FormData.GetStringFromRequest(context.Request);
jsonParam = JObject.Parse(text);
if (jsonParam["jsonrpc"] == null)
{
throw new Exception("do not have element:jsonrpc");
}
if (jsonParam["id"] == null)
{
throw new Exception("do not have element:id");
}
if (jsonParam["method"] == null)
{
throw new Exception("do not have element:method");
}
if (jsonParam["params"] == null)
{
throw new Exception("do not have element:params");
}
}
}
else
{
throw new Exception("not implement request method.");
}
if (mapAction.TryGetValue(jsonParam["method"].Value <string>(), out ActionRPC method))
{
var json = await method(jsonParam);
JObject result = new JObject();
result["result"] = json;
result["id"] = jsonParam["id"].Value <int>();
result["jsonrpc"] = "2.0";
await context.Response.WriteAsync(result.ToString());
}
else
{
throw new Exception("Do not have this method.");
}
}
catch (Exception err)
{
try
{
if (failAction != null)
{
var errorobj = await failAction(jsonParam, err.Message);
if (jsonParam == null)
{
jsonParam = new JObject();
jsonParam["jsonrpc"] = "2.0";
jsonParam["id"] = null;
}
jsonParam["error"] = errorobj.ToJObject();
await context.Response.WriteAsync(jsonParam.ToString());
}
else
{
var errorobj = new ErrorObject();
errorobj.data = jsonParam;
errorobj.message = err.Message;
errorobj.code = -32000;
if (jsonParam == null)
{
jsonParam = new JObject();
jsonParam["jsonrpc"] = "2.0";
jsonParam["id"] = null;
}
jsonParam["error"] = errorobj.ToJObject();
await context.Response.WriteAsync(jsonParam.ToString());
}
}
catch
{
}
}
}
