func procMsg(msg ClientMessage, datasource *datasource.DataSource) {
rcpt := make([]string, 0, 100)
toHost := strings.Split(msg.To, "@")[1]
if isAllowedHost(toHost) {
user, err := datasource.UserByEmail(msg.To)
if err == nil {
rcpt = append(rcpt, user.InboxAddr)
} else {
group, err := datasource.GroupByEmail(msg.To)
if err == nil {
for _, member := range group.Members {
user, err = datasource.UserByEmail(member)
if err == nil {
rcpt = append(rcpt, user.InboxAddr)
}
}
} else {
logln(1, "Can't find such user or group")
return
}
}
}
logln(1, fmt.Sprintf("%s", msg.From))
fromHost := strings.Split(msg.From, "@")[1]
if isAllowedHost(fromHost) {
if msg.Auth == false || msg.Username != msg.From {
logln(1, fmt.Sprintf("%s %s", msg.Username, msg.From))
logln(1, "Not authenticated")
return
}
}
for _, email := range rcpt {
logln(1, email)
host := strings.Split(email, "@")[1]
nss, err := net.LookupMX(host)
if err == nil {
for _, ns := range nss {
logln(1, fmt.Sprintf("%s %d", ns.Host, ns.Pref))
}
curMsg := msg
curMsg.To = email
sendMsg(nss[0], curMsg)
} else {
logln(1, "Error in lookup MX")
}
}
}
