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Add basic AUTH support (RFC4954)

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This commit is contained in:
Ian Kent 2014-04-22 21:19:48 +01:00
parent fa2e16587c
commit 8709ba9de6
3 changed files with 46 additions and 5 deletions
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41
mailhog/smtp/session.go
View file

@ -19,10 +19,13 @@ type Session struct {
state int
message *data.SMTPMessage
mongo *storage.MongoDB
isTLS bool
}
const (
ESTABLISH = iota
AUTH
AUTH2
MAIL
RCPT
DATA
@ -32,7 +35,7 @@ const (
// TODO replace ".." lines with . in data
func StartSession(conn *net.TCPConn, conf *mailhog.Config, mongo *storage.MongoDB) {
conv := &Session{conn, "", conf, ESTABLISH, &data.SMTPMessage{}, mongo}
conv := &Session{conn, "", conf, ESTABLISH, &data.SMTPMessage{}, mongo, false}
conv.log("Starting session")
conv.Write("220", conv.conf.Hostname + " ESMTP Go-MailHog")
conv.Read()
@ -145,13 +148,45 @@ func (c *Session) Process(line string) {
c.log("Got EHLO command, switching to MAIL state")
c.state = MAIL
c.message.Helo = args
c.Write("250", "Hello " + args, "PIPELINING")
c.Write("250", "Hello " + args, "PIPELINING", "AUTH EXTERNAL CRAM-MD5 LOGIN PLAIN")
default:
c.log("Got unknown command for ESTABLISH state: '%s'", command)
c.Write("500", "Unrecognised command")
}
case c.state == MAIL:
case c.state == AUTH:
c.log("Got authentication response: '%s', switching to MAIL state", args)
c.state = MAIL
c.Write("235", "Authentication successful")
case c.state == AUTH2:
c.log("Got LOGIN authentication response: '%s', switching to AUTH state", args)
c.state = AUTH
c.Write("334", "VXNlcm5hbWU6")
case c.state == MAIL: // TODO rename/split state
switch command {
case "AUTH":
c.log("Got AUTH command, staying in MAIL state")
switch {
case strings.HasPrefix(args, "PLAIN "):
c.log("Got PLAIN authentication: %s", strings.TrimPrefix(args, "PLAIN "))
c.Write("235", "Authentication successful")
case args == "LOGIN":
c.log("Got LOGIN authentication, switching to AUTH state")
c.state = AUTH
c.Write("334", "VXNlcm5hbWU6")
case args == "PLAIN":
c.log("Got PLAIN authentication (no args), switching to AUTH state")
c.state = AUTH
c.Write("334", "")
case args == "CRAM-MD5":
c.log("Got CRAM-MD5 authentication, switching to AUTH state")
c.state = AUTH
c.Write("334", "PDQxOTI5NDIzNDEuMTI4Mjg0NzJAc291cmNlZm91ci5hbmRyZXcuY211LmVkdT4=")
case args == "EXTERNAL ":
c.log("Got EXTERNAL authentication: %s", strings.TrimPrefix(args, "EXTERNAL "))
c.Write("235", "Authentication successful")
default:
c.Write("504", "Unsupported authentication mechanism")
}
case "MAIL":
c.log("Got MAIL command, switching to RCPT state")
r, _ := regexp.Compile("From:<([^>]+)>")

5
main_test.go
View file

@ -34,7 +34,10 @@ func TestBasicHappyPath(t *testing.T) {
assert.Equal(t, string(buf[0:n]), "250-Hello localhost\n")
n, err = conn.Read(buf)
assert.Nil(t, err)
assert.Equal(t, string(buf[0:n]), "250 PIPELINING\n")
assert.Equal(t, string(buf[0:n]), "250-PIPELINING\n")
n, err = conn.Read(buf)
assert.Nil(t, err)
assert.Equal(t, string(buf[0:n]), "250 AUTH EXTERNAL CRAM-MD5 LOGIN PLAIN\n")
// Send MAIL
_, err = conn.Write([]byte("MAIL From:<nobody@mailhog.example>\r\n"))

5
mime_test.go
View file

@ -34,7 +34,10 @@ func TestBasicMIMEHappyPath(t *testing.T) {
assert.Equal(t, string(buf[0:n]), "250-Hello localhost\n")
n, err = conn.Read(buf)
assert.Nil(t, err)
assert.Equal(t, string(buf[0:n]), "250 PIPELINING\n")
assert.Equal(t, string(buf[0:n]), "250-PIPELINING\n")
n, err = conn.Read(buf)
assert.Nil(t, err)
assert.Equal(t, string(buf[0:n]), "250 AUTH EXTERNAL CRAM-MD5 LOGIN PLAIN\n")
// Send MAIL
_, err = conn.Write([]byte("MAIL From:<nobody@mailhog.example>\r\n"))