9244f87dc1
This change makes http.Server.ReadHeaderTimeout configurable separately from ReadTimeout for RPC servers. The default is set to the same as ReadTimeout, which in order to cause no change in existing deployments.
92 lines
3.5 KiB
Go
92 lines
3.5 KiB
Go
// Copyright 2020 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package node
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import (
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"net"
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"net/http"
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"time"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/rpc"
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)
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// StartHTTPEndpoint starts the HTTP RPC endpoint.
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func StartHTTPEndpoint(endpoint string, timeouts rpc.HTTPTimeouts, handler http.Handler) (*http.Server, net.Addr, error) {
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// start the HTTP listener
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var (
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listener net.Listener
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err error
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)
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if listener, err = net.Listen("tcp", endpoint); err != nil {
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return nil, nil, err
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}
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// make sure timeout values are meaningful
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CheckTimeouts(&timeouts)
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// Bundle and start the HTTP server
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httpSrv := &http.Server{
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Handler: handler,
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ReadTimeout: timeouts.ReadTimeout,
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ReadHeaderTimeout: timeouts.ReadHeaderTimeout,
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WriteTimeout: timeouts.WriteTimeout,
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IdleTimeout: timeouts.IdleTimeout,
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}
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go httpSrv.Serve(listener)
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return httpSrv, listener.Addr(), err
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}
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// checkModuleAvailability checks that all names given in modules are actually
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// available API services. It assumes that the MetadataApi module ("rpc") is always available;
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// the registration of this "rpc" module happens in NewServer() and is thus common to all endpoints.
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func checkModuleAvailability(modules []string, apis []rpc.API) (bad, available []string) {
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availableSet := make(map[string]struct{})
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for _, api := range apis {
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if _, ok := availableSet[api.Namespace]; !ok {
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availableSet[api.Namespace] = struct{}{}
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available = append(available, api.Namespace)
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}
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}
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for _, name := range modules {
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if _, ok := availableSet[name]; !ok {
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if name != rpc.MetadataApi && name != rpc.EngineApi {
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bad = append(bad, name)
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}
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}
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}
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return bad, available
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}
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// CheckTimeouts ensures that timeout values are meaningful
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func CheckTimeouts(timeouts *rpc.HTTPTimeouts) {
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if timeouts.ReadTimeout < time.Second {
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log.Warn("Sanitizing invalid HTTP read timeout", "provided", timeouts.ReadTimeout, "updated", rpc.DefaultHTTPTimeouts.ReadTimeout)
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timeouts.ReadTimeout = rpc.DefaultHTTPTimeouts.ReadTimeout
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}
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if timeouts.ReadHeaderTimeout < time.Second {
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log.Warn("Sanitizing invalid HTTP read header timeout", "provided", timeouts.ReadHeaderTimeout, "updated", rpc.DefaultHTTPTimeouts.ReadHeaderTimeout)
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timeouts.ReadHeaderTimeout = rpc.DefaultHTTPTimeouts.ReadHeaderTimeout
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}
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if timeouts.WriteTimeout < time.Second {
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log.Warn("Sanitizing invalid HTTP write timeout", "provided", timeouts.WriteTimeout, "updated", rpc.DefaultHTTPTimeouts.WriteTimeout)
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timeouts.WriteTimeout = rpc.DefaultHTTPTimeouts.WriteTimeout
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}
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if timeouts.IdleTimeout < time.Second {
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log.Warn("Sanitizing invalid HTTP idle timeout", "provided", timeouts.IdleTimeout, "updated", rpc.DefaultHTTPTimeouts.IdleTimeout)
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timeouts.IdleTimeout = rpc.DefaultHTTPTimeouts.IdleTimeout
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}
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}
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