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add mutex to guard session's peer's metadata changing

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This commit is contained in:
Anatolij Ostroumov 2023-06-14 10:37:39 +03:00
parent 92a3299f16
commit 68437c8c69
2 changed files with 8 additions and 4 deletions
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7
protocol.go
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@ -61,7 +61,8 @@ func parseLine(line string) (cmd command) {
}
func (session *session) handle(line string) {
session.mutex.Lock()
defer session.mutex.Unlock()
cmd := parseLine(line)
// Commands are dispatched to the appropriate handler functions.
@ -470,7 +471,7 @@ func (session *session) handleAUTH(cmd command) {
encodedUsername := ""
if len(cmd.fields) < 3 {
session.reply(334, "VXNlcm5hbWU6")
session.reply(334, "VXNlcm5hbWU6") // `Username:`
if !session.scanner.Scan() {
return
}
@ -486,7 +487,7 @@ func (session *session) handleAUTH(cmd command) {
return
}
session.reply(334, "UGFzc3dvcmQ6")
session.reply(334, "UGFzc3dvcmQ6") // `Password:`
if !session.scanner.Scan() {
return

5
smtpd.go
View file

@ -158,6 +158,8 @@ type session struct {
scanner *bufio.Scanner
tls bool
// mutex is used to guard editing peer's Metadata
mutex sync.Mutex
}
func (srv *Server) newSession(c net.Conn) (s *session) {
@ -170,11 +172,12 @@ func (srv *Server) newSession(c net.Conn) (s *session) {
peer: &Peer{
Addr: c.RemoteAddr(),
ServerName: srv.Hostname,
Meta: make(map[string]interface{}, 0),
},
}
// Check if the underlying connection is already TLS.
// This will happen if the Listerner provided Serve()
// This will happen if the Listener provided Serve()
// is from tls.Listen()
var tlsConn *tls.Conn