added load balance support and verbose level

src/go-proxy/constants.go

@@ -0,0 +1,57 @@
+package main
+
+import "time"
+
+var (
+	ImageNamePortMap = map[string]string{
+		"postgres":  "5432",
+		"mysql":     "3306",
+		"mariadb":   "3306",
+		"redis":     "6379",
+		"mssql":     "1433",
+		"memcached": "11211",
+		"rabbitmq":  "5672",
+		"mongo":     "27017",
+	}
+	ExtraNamePortMap = map[string]string{
+		"dns":  "53",
+		"ssh":  "22",
+		"ftp":  "21",
+		"smtp": "25",
+		"pop3": "110",
+		"imap": "143",
+	}
+	NamePortMap = func() map[string]string {
+		m := make(map[string]string)
+		for k, v := range ImageNamePortMap {
+			m[k] = v
+		}
+		for k, v := range ExtraNamePortMap {
+			m[k] = v
+		}
+		return m
+	}()
+)
+
+var (
+	StreamSchemes = []string{TCPStreamType, UDPStreamType} // TODO: support "tcp:udp", "udp:tcp"
+	HTTPSchemes   = []string{"http", "https"}
+	ValidSchemes  = append(StreamSchemes, HTTPSchemes...)
+)
+
+const (
+	UDPStreamType = "udp"
+	TCPStreamType = "tcp"
+)
+
+const (
+	ProxyPathMode_Forward     = "forward"
+	ProxyPathMode_Sub         = "sub" // TODO: implement
+	ProxyPathMode_RemovedPath = ""
+)
+
+const StreamStopListenTimeout = 1 * time.Second
+
+const templateFile = "/app/templates/panel.html"
+
+const udpBufferSize = 1500