/
listen.go
224 lines (194 loc) · 6.06 KB
/
listen.go
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package web
//import "gopkg.in/webnice/debug.v1"
//import "gopkg.in/webnice/log.v2"
import (
"crypto/tls"
"net"
"os"
"path"
)
// Wait while web server is running
func (wsv *web) Wait() Interface { wsv.doCloseDone.Wait(); return wsv }
// ListenAndServe listens on the TCP network address addr and then calls Serve with handler to handle requests on incoming connections
func (wsv *web) ListenAndServe(addr string) Interface {
var conf *Configuration
if conf, wsv.err = parseAddress(addr); wsv.err != nil {
return wsv
}
return wsv.ListenAndServeWithConfig(conf)
}
// ListenAndServeTLS listens on the TCP network address address with TLS and then calls Serve with handler
// to handle requests on incoming connections
func (wsv *web) ListenAndServeTLS(addr string, certFile string, keyFile string, tlsConfig *tls.Config) Interface {
var conf *Configuration
if conf, wsv.err = parseAddress(addr); wsv.err != nil {
return wsv
}
conf.TLSPublicKeyPEM, conf.TLSPrivateKeyPEM = certFile, keyFile
return wsv.ListenAndServeTLSWithConfig(conf, tlsConfig)
}
// ListenAndServeWithConfig Fully configurable web server listens and then calls Serve on incoming connections
func (wsv *web) ListenAndServeWithConfig(conf *Configuration) Interface {
if conf == nil {
wsv.err = ErrNoConfiguration()
return wsv
}
wsv.conf = conf
return wsv.Listen(nil)
}
// ListenAndServeTLSWithConfig Fully configurable web server listens and then calls Serve on incoming connections
func (wsv *web) ListenAndServeTLSWithConfig(conf *Configuration, tlsConfig *tls.Config) Interface {
if conf == nil {
wsv.err = ErrNoConfiguration()
return wsv
}
wsv.conf = conf
if tlsConfig == nil {
if tlsConfig, wsv.err = wsv.tlsConfigDefault(conf.TLSPublicKeyPEM, conf.TLSPrivateKeyPEM); wsv.err != nil {
return wsv
}
}
return wsv.Listen(tlsConfig)
}
// NewListener Make new listener from web server configuration
func (wsv *web) NewListener(conf *Configuration) (ret net.Listener, err error) {
var (
lstWithNames map[string][]net.Listener
listeners []net.Listener
ok bool
)
defaultConfiguration(conf)
switch conf.Mode {
case netSystemd:
if conf.Socket != "" {
// Имена сокетов указаны
if lstWithNames, err = wsv.ListenersSystemdWithNames(); err != nil {
return
}
// Выбор сокета по имени
if listeners, ok = lstWithNames[path.Base(conf.Socket)]; !ok {
err = ErrListenSystemdNotFound()
return
}
} else {
// Имена сокетов не указаны
if listeners, err = wsv.ListenersSystemdWithoutNames(); err != nil {
return
}
}
if len(listeners) == 0 {
err = ErrListenSystemdUnexpectedNumber()
return
}
ret = listeners[0]
case netUnix, netUnixPacket:
_ = os.Remove(conf.Socket)
ret, err = net.Listen(conf.Mode, conf.Socket)
_ = os.Chmod(conf.Socket, os.FileMode(0666))
default:
ret, err = net.Listen(conf.Mode, conf.HostPort)
}
return
}
// NewListenerTLS Make new listener with TLS from web server configuration
func (wsv *web) NewListenerTLS(conf *Configuration, tlsConfig *tls.Config) (ret net.Listener, err error) {
var lst net.Listener
if lst, err = wsv.NewListener(conf); err != nil {
return
}
if tlsConfig == nil {
if tlsConfig, err = wsv.tlsConfigDefault(conf.TLSPublicKeyPEM, conf.TLSPrivateKeyPEM); err != nil {
return
}
}
if tlsConfig == nil {
err = ErrTLSIsNil()
return
}
ret = tls.NewListener(lst, tlsConfig)
return
}
// Конфигурация TLS по умолчанию
func (wsv *web) tlsConfigDefault(tlsPublicFile string, tlsPrivateFile string) (ret *tls.Config, err error) {
ret = &tls.Config{
MinVersion: tls.VersionTLS12,
CurvePreferences: []tls.CurveID{tls.CurveP521, tls.CurveP384, tls.CurveP256},
PreferServerCipherSuites: true,
CipherSuites: []uint16{
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
},
Certificates: make([]tls.Certificate, 1),
}
if ret.Certificates[0], err = tls.LoadX509KeyPair(tlsPublicFile, tlsPrivateFile); err != nil {
return
}
return
}
// Listen Begin listen port and web server serve
func (wsv *web) Listen(tlsConfig *tls.Config) Interface {
var ltn net.Listener
if wsv.isRun.Load().(bool) {
wsv.err = ErrAlreadyRunning()
return wsv
}
switch tlsConfig == nil {
case true:
ltn, wsv.err = wsv.NewListener(wsv.conf)
case false:
ltn, wsv.err = wsv.NewListenerTLS(wsv.conf, tlsConfig)
}
if wsv.err != nil {
return wsv
}
return wsv.ServeTLS(ltn, tlsConfig)
}
// Serve accepts incoming connections on the listener, creating a new web server goroutine
func (wsv *web) Serve(ltn net.Listener) Interface { return wsv.ServeTLS(ltn, nil) }
// ServeTLS accepts incoming connections on the listener with TLS configuration, creating a new web server goroutine
func (wsv *web) ServeTLS(ltn net.Listener, tlsConfig *tls.Config) Interface {
var conf *Configuration
// TODO: Реализовать поддержку PROXY Protocol через "gopkg.in/webnice/web.v1/proxyp", conf.ProxyProtocol
if wsv.conf == nil {
conf, _ = parseAddress(ltn.Addr().String())
defaultConfiguration(conf)
wsv.conf = conf
}
wsv.listener = ltn
wsv.isRun.Store(true)
wsv.doCloseDone.Add(1)
go wsv.run(tlsConfig)
return wsv
}
// Goroutine of the web server
func (wsv *web) run(tlsConfig *tls.Config) {
defer wsv.doCloseDone.Done()
defer wsv.isRun.Store(false)
defer func() {
if wsv.conf.Socket == "" {
return
}
switch wsv.conf.Mode {
case netSystemd:
return
case netUnix, netUnixPacket:
_ = os.Remove(wsv.conf.Socket)
}
}()
// Configure net/http web server
if wsv.server = wsv.loadConfiguration(tlsConfig); wsv.err != nil {
return
}
// Configure keepalive of web server
if wsv.conf.KeepAliveDisable {
wsv.server.SetKeepAlivesEnabled(false)
}
// Begin serve
if wsv.conf.TLSPrivateKeyPEM == "" || wsv.conf.TLSPublicKeyPEM == "" {
wsv.err = wsv.server.Serve(wsv.listener)
return
}
wsv.err = wsv.server.ServeTLS(wsv.listener, wsv.conf.TLSPublicKeyPEM, wsv.conf.TLSPrivateKeyPEM)
}