Files
strom/server/server.go
T

89 lines
1.6 KiB
Go

package server
import (
"errors"
"log/slog"
"net"
"github.com/admin-else/strom/proto"
"github.com/admin-else/strom/proto_base"
"github.com/admin-else/strom/text"
)
func Servee(c net.Conn) (ret *proto.Conn) {
ret = proto.NewConn()
ret.Actor = proto_base.Servee
ret.Conn = c
ret.R = c
ret.W = c
ret.Log = slog.Default().With("conn", c.RemoteAddr())
return
}
type ConnAcceptor func(c net.Conn) (err error)
type Factory func(c *proto.Conn) (h ConnAcceptor, err error)
func ServeClient(cNet net.Conn, factory Factory) {
c := Servee(cNet)
defer c.Close()
h, err := factory(c)
if err != nil {
return
}
err = h(c)
if errors.Is(err, StatusServedErr) {
return
}
if err != nil {
err = Kick(c, text.Pretty(err.Error()), "")
}
}
func StartServerWithFactory(listenAddr string, factory Factory) (err error) {
l, err := net.Listen("tcp", listenAddr)
if err != nil {
return
}
var cNet net.Conn
for {
cNet, err = l.Accept()
if err != nil {
return
}
go ServeClient(cNet, factory)
}
}
var ShutDownServerErr = errors.New("server shutting down")
func StartServerWithOnConn(listenAddr string, onConn func(c *proto.Conn) (err error)) (err error) {
l, err := net.Listen("tcp", listenAddr)
if err != nil {
return
}
defer l.Close()
running := true
for running {
var cNet net.Conn
cNet, err = l.Accept()
if err != nil {
return
}
go func() {
c := Servee(cNet)
defer c.Close()
connErr := onConn(c)
if errors.Is(connErr, ShutDownServerErr) {
running = false
}
if connErr != nil {
connErr = Kick(c, text.Pretty(connErr.Error()), "")
}
}()
}
err = ShutDownServerErr
return
}