utils/vhost: support wildcard domains

src/utils/vhost/vhost.go

@@ -71,6 +71,18 @@ func (v *VhostMuxer) Listen(name string, rewriteHost string) (l *Listener, err e
 func (v *VhostMuxer) getListener(name string) (l *Listener, exist bool) {
 	v.mutex.RLock()
 	defer v.mutex.RUnlock()
+	// first we check the full hostname
+	// if not exist, then check the wildcard_domain such as *.example.com
+	l, exist = v.registryMap[name]
+	if exist {
+		return l, exist
+	}
+	domainSplit := strings.Split(name, ".")
+	if len(domainSplit) < 3 {
+		return l, false
+	}
+	domainSplit[0] = "*"
+	name = strings.Join(domainSplit, ".")
 	l, exist = v.registryMap[name]
 	return l, exist
 }
@@ -93,21 +105,26 @@ func (v *VhostMuxer) run() {
 
 func (v *VhostMuxer) handle(c *conn.Conn) {
 	if err := c.SetDeadline(time.Now().Add(v.timeout)); err != nil {
+		c.Close()
 		return
 	}
 
 	sConn, name, err := v.vhostFunc(c)
 	if err != nil {
+		c.Close()
 		return
 	}
 
 	name = strings.ToLower(name)
+	// get listener by hostname
 	l, ok := v.getListener(name)
 	if !ok {
+		c.Close()
 		return
 	}
 
 	if err = sConn.SetDeadline(time.Time{}); err != nil {
+		c.Close()
 		return
 	}
 	c.SetTcpConn(sConn)