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package lmtp
import (
"context"
"errors"
"fmt"
"net"
"time"
"go.lindenii.runxiyu.org/forge/forged/internal/common/misc"
)
type Server struct {
socket string
domain string
maxSize int64
writeTimeout uint32
readTimeout uint32
}
type Config struct {
Socket string `scfg:"socket"`
Domain string `scfg:"domain"`
MaxSize int64 `scfg:"max_size"`
WriteTimeout uint32 `scfg:"write_timeout"`
ReadTimeout uint32 `scfg:"read_timeout"`
}
func New(config Config) (server *Server) {
return &Server{
socket: config.Socket,
domain: config.Domain,
maxSize: config.MaxSize,
writeTimeout: config.WriteTimeout,
readTimeout: config.ReadTimeout,
}
}
func (server *Server) Run(ctx context.Context) error {
listener, _, err := misc.ListenUnixSocket(ctx, server.socket)
if err != nil {
return fmt.Errorf("listen unix socket for LMTP: %w", err)
}
defer func() {
_ = listener.Close()
}()
stop := context.AfterFunc(ctx, func() {
_ = listener.Close()
})
defer stop()
for {
conn, err := listener.Accept()
if err != nil {
if errors.Is(err, net.ErrClosed) || ctx.Err() != nil {
return nil
}
return fmt.Errorf("accept conn: %w", err)
}
go server.handleConn(ctx, conn)
}
}
func (server *Server) handleConn(ctx context.Context, conn net.Conn) {
defer func() {
_ = conn.Close()
}()
unblock := context.AfterFunc(ctx, func() {
_ = conn.SetDeadline(time.Now())
_ = conn.Close()
})
defer unblock()
}
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