Feature: SOURCE-IP-CIDR rule type (#96)

adapters/inbound/http.go

@@ -32,8 +32,10 @@ func (h *HTTPAdapter) Conn() net.Conn {
 
 // NewHTTP is HTTPAdapter generator
 func NewHTTP(request *http.Request, conn net.Conn) *HTTPAdapter {
+	metadata := parseHTTPAddr(request)
+	metadata.SourceIP = parseSourceIP(conn)
 	return &HTTPAdapter{
-		metadata: parseHTTPAddr(request),
+		metadata: metadata,
 		R:        request,
 		conn:     conn,
 	}

adapters/inbound/https.go

@@ -7,8 +7,10 @@ import (
 
 // NewHTTPS is HTTPAdapter generator
 func NewHTTPS(request *http.Request, conn net.Conn) *SocketAdapter {
+	metadata := parseHTTPAddr(request)
+	metadata.SourceIP = parseSourceIP(conn)
 	return &SocketAdapter{
-		metadata: parseHTTPAddr(request),
+		metadata: metadata,
 		conn:     conn,
 	}
 }

adapters/inbound/socket.go

@@ -32,6 +32,7 @@ func (s *SocketAdapter) Conn() net.Conn {
 func NewSocket(target socks.Addr, conn net.Conn, source C.SourceType) *SocketAdapter {
 	metadata := parseSocksAddr(target)
 	metadata.Source = source
+	metadata.SourceIP = parseSourceIP(conn)
 
 	return &SocketAdapter{
 		conn:     conn,

adapters/inbound/util.go

@@ -61,3 +61,10 @@ func parseHTTPAddr(request *http.Request) *C.Metadata {
 
 	return metadata
 }
+
+func parseSourceIP(conn net.Conn) *net.IP {
+	if addr, ok := conn.RemoteAddr().(*net.TCPAddr); ok {
+		return &addr.IP
+	}
+	return nil
+}