interfaces.go, SnowflakeCollector, better composition

client/interfaces.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"net"
+)
+
+// Interface for collecting and releasing snowflakes.
+type SnowflakeCollector interface {
+	Collect() (*webRTCConn, error)
+	Release() *webRTCConn
+}
+
+// Interface for catching those wild Snowflakes.
+type Tongue interface {
+	Catch() (*webRTCConn, error)
+}
+
+// Interface which primarily adapts to goptlib's SocksConn struct.
+type SocksConnector interface {
+	Grant(*net.TCPAddr) error
+	Reject() error
+	net.Conn
+}
+
+// Interface for the Snowflake's transport.
+// (Specifically, webrtc.DataChannel)
+type SnowflakeChannel interface {
+	Send([]byte)
+	Close() error
+}