mirror of https://github.com/ethereum/go-ethereum
Taylor Gerring
10 years ago
parent
ad3a21f260
commit
cfe0370280
@ -1,121 +0,0 @@ |
||||
/* |
||||
This file is part of go-ethereum |
||||
|
||||
go-ethereum 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. |
||||
|
||||
go-ethereum 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 go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/ |
||||
package rpcws |
||||
|
||||
import ( |
||||
"fmt" |
||||
"net" |
||||
"net/http" |
||||
|
||||
"github.com/ethereum/go-ethereum/logger" |
||||
"github.com/ethereum/go-ethereum/rpc" |
||||
"github.com/ethereum/go-ethereum/xeth" |
||||
"golang.org/x/net/websocket" |
||||
) |
||||
|
||||
var wslogger = logger.NewLogger("RPC-WS") |
||||
var JSON rpc.JsonWrapper |
||||
|
||||
type WebSocketServer struct { |
||||
pipe *xeth.XEth |
||||
port int |
||||
doneCh chan bool |
||||
listener net.Listener |
||||
} |
||||
|
||||
func NewWebSocketServer(pipe *xeth.XEth, port int) (*WebSocketServer, error) { |
||||
sport := fmt.Sprintf(":%d", port) |
||||
l, err := net.Listen("tcp", sport) |
||||
if err != nil { |
||||
return nil, err |
||||
} |
||||
|
||||
return &WebSocketServer{ |
||||
pipe, |
||||
port, |
||||
make(chan bool), |
||||
l, |
||||
}, nil |
||||
} |
||||
|
||||
func (self *WebSocketServer) handlerLoop() { |
||||
for { |
||||
select { |
||||
case <-self.doneCh: |
||||
wslogger.Infoln("Shutdown RPC-WS server") |
||||
return |
||||
} |
||||
} |
||||
} |
||||
|
||||
func (self *WebSocketServer) Stop() { |
||||
close(self.doneCh) |
||||
} |
||||
|
||||
func (self *WebSocketServer) Start() { |
||||
wslogger.Infof("Starting RPC-WS server on port %d", self.port) |
||||
go self.handlerLoop() |
||||
|
||||
api := rpc.NewEthereumApi(self.pipe) |
||||
h := self.apiHandler(api) |
||||
http.Handle("/ws", h) |
||||
|
||||
err := http.Serve(self.listener, nil) |
||||
if err != nil { |
||||
wslogger.Errorln("Error on RPC-WS interface:", err) |
||||
} |
||||
} |
||||
|
||||
func (s *WebSocketServer) apiHandler(api *rpc.EthereumApi) http.Handler { |
||||
fn := func(w http.ResponseWriter, req *http.Request) { |
||||
h := sockHandler(api) |
||||
s := websocket.Server{Handler: h} |
||||
s.ServeHTTP(w, req) |
||||
} |
||||
|
||||
return http.HandlerFunc(fn) |
||||
} |
||||
|
||||
func sockHandler(api *rpc.EthereumApi) websocket.Handler { |
||||
var jsonrpcver string = "2.0" |
||||
fn := func(conn *websocket.Conn) { |
||||
for { |
||||
wslogger.Debugln("Handling connection") |
||||
var reqParsed rpc.RpcRequest |
||||
|
||||
// reqParsed, reqerr := JSON.ParseRequestBody(conn.Request())
|
||||
if err := websocket.JSON.Receive(conn, &reqParsed); err != nil { |
||||
jsonerr := &rpc.RpcErrorObject{-32700, "Error: Could not parse request"} |
||||
JSON.Send(conn, &rpc.RpcErrorResponse{JsonRpc: jsonrpcver, ID: nil, Error: jsonerr}) |
||||
continue |
||||
} |
||||
|
||||
var response interface{} |
||||
reserr := api.GetRequestReply(&reqParsed, &response) |
||||
if reserr != nil { |
||||
wslogger.Warnln(reserr) |
||||
jsonerr := &rpc.RpcErrorObject{-32603, reserr.Error()} |
||||
JSON.Send(conn, &rpc.RpcErrorResponse{JsonRpc: jsonrpcver, ID: reqParsed.ID, Error: jsonerr}) |
||||
continue |
||||
} |
||||
|
||||
wslogger.Debugf("Generated response: %T %s", response, response) |
||||
JSON.Send(conn, &rpc.RpcSuccessResponse{JsonRpc: jsonrpcver, ID: reqParsed.ID, Result: response}) |
||||
} |
||||
} |
||||
return websocket.Handler(fn) |
||||
} |
||||
Loading…
Reference in new issue