fix crash in case of specially-crafted HTTP requests (#2166) (#2169)

internal/httpserv/wrapped_server_test.go

@@ -0,0 +1,45 @@
+package httpserv
+
+import (
+	"io"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/bluenviron/mediamtx/internal/logger"
+)
+
+type testLogger struct{}
+
+func (testLogger) Log(_ logger.Level, _ string, _ ...interface{}) {
+	// fmt.Printf(format, args...)
+}
+
+func TestFilterEmptyPath(t *testing.T) {
+	s, err := NewWrappedServer(
+		"tcp",
+		"localhost:4555",
+		10*time.Second,
+		"",
+		"",
+		nil,
+		&testLogger{})
+	require.NoError(t, err)
+	defer s.Close()
+
+	conn, err := net.Dial("tcp", "localhost:4555")
+	require.NoError(t, err)
+	defer conn.Close()
+
+	_, err = conn.Write([]byte("OPTIONS http://localhost HTTP/1.1\n" +
+		"Host: localhost:8889\n" +
+		"Accept-Encoding: gzip\n" +
+		"User-Agent: Go-http-client/1.1\n\n"))
+	require.NoError(t, err)
+
+	buf := make([]byte, 20)
+	_, err = io.ReadFull(conn, buf)
+	require.NoError(t, err)
+}