93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
package server
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import (
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"errors"
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"log/slog"
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"net"
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"github.com/admin-else/strom/proto"
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"github.com/admin-else/strom/proto_base"
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"github.com/admin-else/strom/text"
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)
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func Servee(c net.Conn) (ret *proto.Conn) {
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ret = &proto.Conn{}
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_ = ret.SetVersion("1.21.8") // cant fail
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ret.SetState(proto_base.Handshaking)
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ret.SetCompressionThreshold(-1)
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ret.Actor = proto_base.Servee
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ret.Conn = c
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ret.R = c
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ret.W = c
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return
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}
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type ConnAcceptor func(c net.Conn) (err error)
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type Factory func(c *proto.Conn) (h ConnAcceptor, err error)
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func ServeClient(cNet net.Conn, factory Factory) {
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c := Servee(cNet)
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defer c.Close()
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h, err := factory(c)
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if err != nil {
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return
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}
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err = h(c)
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if errors.Is(err, StatusServedErr) {
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return
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}
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if err != nil {
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slog.Error("Error while handling client", "error", err, "client", c.Conn.RemoteAddr())
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err = Kick(c, text.Pretty(err.Error()))
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if err != nil {
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slog.Error("Error while kicking client", "error", err, "client", c.Conn.RemoteAddr())
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}
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}
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return
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}
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func StartServerWithFactory(listenAddr string, factory Factory) (err error) {
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l, err := net.Listen("tcp", listenAddr)
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if err != nil {
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return
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}
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var cNet net.Conn
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for {
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cNet, err = l.Accept()
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if err != nil {
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return
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}
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go ServeClient(cNet, factory)
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}
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}
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func StartServerWithOnConn(listenAddr string, onConn func(c *proto.Conn) (err error)) (err error) {
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l, err := net.Listen("tcp", listenAddr)
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if err != nil {
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return
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}
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for {
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var cNet net.Conn
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cNet, err = l.Accept()
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if err != nil {
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return
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}
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go func() {
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c := Servee(cNet)
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defer c.Close()
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connErr := onConn(c)
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if connErr != nil {
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if c.State() == proto_base.Status || c.State() == proto_base.Handshaking {
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return // we dont care about status packets
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}
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slog.Error("Error while handling client", "error", connErr, "client", c.Conn.RemoteAddr())
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connErr = Kick(c, text.Pretty(connErr.Error()))
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if connErr != nil {
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slog.Error("Error while kicking client", "error", connErr, "client", c.Conn.RemoteAddr())
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}
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}
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}()
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}
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}
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