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package main
import (
"bufio"
"flag"
"log"
"os"
"strings"
"time"
"github.com/emersion/go-message/textproto"
"github.com/emersion/go-milter"
)
func printAction(prefix string, act *milter.Action) {
switch act.Code {
case milter.ActAccept:
log.Println(prefix, "accept")
case milter.ActReject:
log.Println(prefix, "reject")
case milter.ActDiscard:
log.Println(prefix, "discard")
case milter.ActTempFail:
log.Println(prefix, "temp. fail")
case milter.ActReplyCode:
log.Println(prefix, "reply code:", act.SMTPCode, act.SMTPText)
case milter.ActContinue:
log.Println(prefix, "continue")
}
}
func printModifyAction(act milter.ModifyAction) {
switch act.Code {
case milter.ActAddHeader:
log.Printf("add header: name %s, value %s", act.HeaderName, act.HeaderValue)
case milter.ActInsertHeader:
log.Printf("insert header: at %d, name %s, value %s", act.HeaderIndex, act.HeaderName, act.HeaderValue)
case milter.ActChangeFrom:
log.Printf("change from: %s %v", act.From, act.FromArgs)
case milter.ActChangeHeader:
log.Printf("change header: at %d, name %s, value %s", act.HeaderIndex, act.HeaderName, act.HeaderValue)
case milter.ActReplBody:
log.Println("replace body:", string(act.Body))
case milter.ActAddRcpt:
log.Println("add rcpt:", act.Rcpt)
case milter.ActDelRcpt:
log.Println("del rcpt:", act.Rcpt)
case milter.ActQuarantine:
log.Println("quarantine:", act.Reason)
}
}
func main() {
transport := flag.String("transport", "unix", "Transport to use for milter connection, One of 'tcp', 'unix', 'tcp4' or 'tcp6'")
address := flag.String("address", "", "Transport address, path for 'unix', address:port for 'tcp'")
hostname := flag.String("hostname", "localhost", "Value to send in CONNECT message")
family := flag.String("family", string(milter.FamilyInet), "Protocol family to send in CONNECT message")
port := flag.Uint("port", 2525, "Port to send in CONNECT message")
connAddr := flag.String("conn-addr", "127.0.0.1", "Connection address to send in CONNECT message")
helo := flag.String("helo", "localhost", "Value to send in HELO message")
mailFrom := flag.String("from", "foxcpp@example.org", "Value to send in MAIL message")
rcptTo := flag.String("rcpt", "foxcpp@example.com", "Comma-separated list of values for RCPT messages")
actionMask := flag.Uint("actions",
uint(milter.OptChangeBody|milter.OptChangeFrom|milter.OptChangeHeader|
milter.OptAddHeader|milter.OptAddRcpt|milter.OptChangeFrom),
"Bitmask value of actions we allow")
disabledMsgs := flag.Uint("disabled-msgs", 0, "Bitmask of disabled protocol messages")
flag.Parse()
c := milter.NewClientWithOptions(*transport, *address, milter.ClientOptions{
ActionMask: milter.OptAction(*actionMask),
ProtocolMask: milter.OptProtocol(*disabledMsgs),
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
})
defer c.Close()
s, err := c.Session()
if err != nil {
log.Println(err)
return
}
defer s.Close()
act, err := s.Conn(*hostname, milter.ProtoFamily((*family)[0]), uint16(*port), *connAddr)
if err != nil {
log.Println(err)
return
}
printAction("CONNECT:", act)
if act.Code != milter.ActContinue {
return
}
act, err = s.Helo(*helo)
if err != nil {
log.Println(err)
return
}
printAction("HELO:", act)
if act.Code != milter.ActContinue {
return
}
act, err = s.Mail(*mailFrom, nil)
if err != nil {
log.Println(err)
return
}
printAction("MAIL:", act)
if act.Code != milter.ActContinue {
return
}
for _, rcpt := range strings.Split(*rcptTo, ",") {
act, err = s.Rcpt(rcpt, nil)
if err != nil {
log.Println(err)
return
}
printAction("RCPT:", act)
if act.Code != milter.ActContinue {
return
}
}
bufR := bufio.NewReader(os.Stdin)
hdr, err := textproto.ReadHeader(bufR)
if err != nil {
log.Println("header parse:", err)
return
}
act, err = s.Header(hdr)
if err != nil {
log.Println(err)
return
}
printAction("HEADER:", act)
if act.Code != milter.ActContinue {
return
}
modifyActs, act, err := s.BodyReadFrom(bufR)
if err != nil {
log.Println(err)
return
}
for _, act := range modifyActs {
printModifyAction(act)
}
printAction("EOB:", act)
}
|
