Add base for faketls

faketls/client_protocol.go

@@ -0,0 +1,35 @@
+package faketls
+
+import (
+	"bufio"
+
+	"github.com/9seconds/mtg/conntypes"
+	"github.com/9seconds/mtg/obfuscated2"
+	"github.com/9seconds/mtg/wrappers/stream"
+)
+
+type ClientProtocol struct {
+	obfuscated2.ClientProtocol
+}
+
+func (c *ClientProtocol) Handshake(socket conntypes.StreamReadWriteCloser) (conntypes.StreamReadWriteCloser, error) {
+	rewinded := stream.NewRewind(socket)
+	bufferedReader := bufio.NewReader(rewinded)
+
+	for _, expected := range faketlsStartBytes {
+		if actual, err := bufferedReader.ReadByte(); err != nil || actual != expected {
+			return nil, c.simulateWebsite(rewinded)
+		}
+	}
+
+	if err := c.tlsHandshake(rewinded); err != nil {
+		return nil, c.simulateWebsite(rewinded)
+	}
+
+	conn, err := c.ClientProtocol.Handshake(socket)
+	if err != nil {
+		return nil, err
+	}
+
+	return conn, err
+}