07d909ff32
This change makes it possible to run geth with JSON-RPC over HTTP and
WebSocket on the same TCP port. The default port for WebSocket
is still 8546.
geth --rpc --rpcport 8545 --ws --wsport 8545
This also removes a lot of deprecated API surface from package rpc.
The rpc package is now purely about serving JSON-RPC and no longer
provides a way to start an HTTP server.
100 lines
3.5 KiB
Go
100 lines
3.5 KiB
Go
// Copyright 2018 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library 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 Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package node
|
|
|
|
import (
|
|
"net"
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
)
|
|
|
|
// StartHTTPEndpoint starts the HTTP RPC endpoint.
|
|
func StartHTTPEndpoint(endpoint string, timeouts rpc.HTTPTimeouts, handler http.Handler) (net.Listener, error) {
|
|
// start the HTTP listener
|
|
var (
|
|
listener net.Listener
|
|
err error
|
|
)
|
|
if listener, err = net.Listen("tcp", endpoint); err != nil {
|
|
return nil, err
|
|
}
|
|
// make sure timeout values are meaningful
|
|
CheckTimeouts(&timeouts)
|
|
// Bundle and start the HTTP server
|
|
httpSrv := &http.Server{
|
|
Handler: handler,
|
|
ReadTimeout: timeouts.ReadTimeout,
|
|
WriteTimeout: timeouts.WriteTimeout,
|
|
IdleTimeout: timeouts.IdleTimeout,
|
|
}
|
|
go httpSrv.Serve(listener)
|
|
return listener, err
|
|
}
|
|
|
|
// startWSEndpoint starts a websocket endpoint.
|
|
func startWSEndpoint(endpoint string, handler http.Handler) (net.Listener, error) {
|
|
// start the HTTP listener
|
|
var (
|
|
listener net.Listener
|
|
err error
|
|
)
|
|
if listener, err = net.Listen("tcp", endpoint); err != nil {
|
|
return nil, err
|
|
}
|
|
wsSrv := &http.Server{Handler: handler}
|
|
go wsSrv.Serve(listener)
|
|
return listener, err
|
|
}
|
|
|
|
// checkModuleAvailability checks that all names given in modules are actually
|
|
// available API services. It assumes that the MetadataApi module ("rpc") is always available;
|
|
// the registration of this "rpc" module happens in NewServer() and is thus common to all endpoints.
|
|
func checkModuleAvailability(modules []string, apis []rpc.API) (bad, available []string) {
|
|
availableSet := make(map[string]struct{})
|
|
for _, api := range apis {
|
|
if _, ok := availableSet[api.Namespace]; !ok {
|
|
availableSet[api.Namespace] = struct{}{}
|
|
available = append(available, api.Namespace)
|
|
}
|
|
}
|
|
for _, name := range modules {
|
|
if _, ok := availableSet[name]; !ok && name != rpc.MetadataApi {
|
|
bad = append(bad, name)
|
|
}
|
|
}
|
|
return bad, available
|
|
}
|
|
|
|
// CheckTimeouts ensures that timeout values are meaningful
|
|
func CheckTimeouts(timeouts *rpc.HTTPTimeouts) {
|
|
if timeouts.ReadTimeout < time.Second {
|
|
log.Warn("Sanitizing invalid HTTP read timeout", "provided", timeouts.ReadTimeout, "updated", rpc.DefaultHTTPTimeouts.ReadTimeout)
|
|
timeouts.ReadTimeout = rpc.DefaultHTTPTimeouts.ReadTimeout
|
|
}
|
|
if timeouts.WriteTimeout < time.Second {
|
|
log.Warn("Sanitizing invalid HTTP write timeout", "provided", timeouts.WriteTimeout, "updated", rpc.DefaultHTTPTimeouts.WriteTimeout)
|
|
timeouts.WriteTimeout = rpc.DefaultHTTPTimeouts.WriteTimeout
|
|
}
|
|
if timeouts.IdleTimeout < time.Second {
|
|
log.Warn("Sanitizing invalid HTTP idle timeout", "provided", timeouts.IdleTimeout, "updated", rpc.DefaultHTTPTimeouts.IdleTimeout)
|
|
timeouts.IdleTimeout = rpc.DefaultHTTPTimeouts.IdleTimeout
|
|
}
|
|
}
|