package nghttp2 import ( "bufio" "bytes" "fmt" "github.com/bradfitz/http2/hpack" "golang.org/x/net/websocket" "io" "net/http" "syscall" "testing" ) // TestH1H1PlainGET tests whether simple HTTP/1 GET request works. func TestH1H1PlainGET(t *testing.T) { st := newServerTester(nil, t, noopHandler) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1PlainGET", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } want := 200 if got := res.status; got != want { t.Errorf("status = %v; want %v", got, want) } } // TestH1H1PlainGETClose tests whether simple HTTP/1 GET request with // Connetion: close request header field works. func TestH1H1PlainGETClose(t *testing.T) { st := newServerTester(nil, t, noopHandler) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1PlainGETClose", header: []hpack.HeaderField{ pair("Connection", "close"), }, }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } want := 200 if got := res.status; got != want { t.Errorf("status = %v; want %v", got, want) } } // TestH1H1InvalidMethod tests that server rejects invalid method with // 501 status code func TestH1H1InvalidMethod(t *testing.T) { st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) { t.Errorf("server should not forward this request") }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1InvalidMethod", method: "get", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 501; got != want { t.Errorf("status = %v; want %v", got, want) } } // TestH1H1MultipleRequestCL tests that server rejects request which // contains multiple Content-Length header fields. func TestH1H1MultipleRequestCL(t *testing.T) { st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) { t.Errorf("server should not forward bad request") }) defer st.Close() if _, err := io.WriteString(st.conn, fmt.Sprintf(`GET / HTTP/1.1 Host: %v Test-Case: TestH1H1MultipleRequestCL Content-Length: 0 Content-Length: 0 `, st.authority)); err != nil { t.Fatalf("Error io.WriteString() = %v", err) } resp, err := http.ReadResponse(bufio.NewReader(st.conn), nil) if err != nil { t.Fatalf("Error http.ReadResponse() = %v", err) } want := 400 if got := resp.StatusCode; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H1ConnectFailure tests that server handles the situation that // connection attempt to HTTP/1 backend failed. func TestH1H1ConnectFailure(t *testing.T) { st := newServerTester(nil, t, noopHandler) defer st.Close() // shutdown backend server to simulate backend connect failure st.ts.Close() res, err := st.http1(requestParam{ name: "TestH1H1ConnectFailure", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } want := 503 if got := res.status; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H1GracefulShutdown tests graceful shutdown. func TestH1H1GracefulShutdown(t *testing.T) { st := newServerTester(nil, t, noopHandler) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1GracefulShutdown-1", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 200; got != want { t.Errorf("status: %v; want %v", got, want) } st.cmd.Process.Signal(syscall.SIGQUIT) res, err = st.http1(requestParam{ name: "TestH1H1GracefulShutdown-2", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 200; got != want { t.Errorf("status: %v; want %v", got, want) } if got, want := res.connClose, true; got != want { t.Errorf("res.connClose: %v; want %v", got, want) } want := io.EOF if _, err := st.conn.Read(nil); err == nil || err != want { t.Errorf("st.conn.Read(): %v; want %v", err, want) } } // TestH1H1HostRewrite tests that server rewrites Host header field func TestH1H1HostRewrite(t *testing.T) { st := newServerTester([]string{"--host-rewrite"}, t, func(w http.ResponseWriter, r *http.Request) { w.Header().Add("request-host", r.Host) }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1HostRewrite", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 200; got != want { t.Errorf("status: %v; want %v", got, want) } if got, want := res.header.Get("request-host"), st.backendHost; got != want { t.Errorf("request-host: %v; want %v", got, want) } } // TestH1H1HTTP10 tests that server can accept HTTP/1.0 request // without Host header field func TestH1H1HTTP10(t *testing.T) { st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) { w.Header().Add("request-host", r.Host) }) defer st.Close() if _, err := io.WriteString(st.conn, "GET / HTTP/1.0\r\nTest-Case: TestH1H1HTTP10\r\n\r\n"); err != nil { t.Fatalf("Error io.WriteString() = %v", err) } resp, err := http.ReadResponse(bufio.NewReader(st.conn), nil) if err != nil { t.Fatalf("Error http.ReadResponse() = %v", err) } if got, want := resp.StatusCode, 200; got != want { t.Errorf("status: %v; want %v", got, want) } if got, want := resp.Header.Get("request-host"), st.backendHost; got != want { t.Errorf("request-host: %v; want %v", got, want) } } // TestH1H1HTTP10NoHostRewrite tests that server generates host header // field using actual backend server even if --no-http-rewrite is // used. func TestH1H1HTTP10NoHostRewrite(t *testing.T) { st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) { w.Header().Add("request-host", r.Host) }) defer st.Close() if _, err := io.WriteString(st.conn, "GET / HTTP/1.0\r\nTest-Case: TestH1H1HTTP10NoHostRewrite\r\n\r\n"); err != nil { t.Fatalf("Error io.WriteString() = %v", err) } resp, err := http.ReadResponse(bufio.NewReader(st.conn), nil) if err != nil { t.Fatalf("Error http.ReadResponse() = %v", err) } if got, want := resp.StatusCode, 200; got != want { t.Errorf("status: %v; want %v", got, want) } if got, want := resp.Header.Get("request-host"), st.backendHost; got != want { t.Errorf("request-host: %v; want %v", got, want) } } // TestH1H1RequestTrailer tests request trailer part is forwarded to // backend. func TestH1H1RequestTrailer(t *testing.T) { st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) { buf := make([]byte, 4096) for { _, err := r.Body.Read(buf) if err == io.EOF { break } if err != nil { t.Fatalf("r.Body.Read() = %v", err) } } if got, want := r.Trailer.Get("foo"), "bar"; got != want { t.Errorf("r.Trailer.Get(foo): %v; want %v", got, want) } }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1RequestTrailer", body: []byte("1"), trailer: []hpack.HeaderField{ pair("foo", "bar"), }, }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 200; got != want { t.Errorf("res.status: %v; want %v", got, want) } } // TestH1H1HeaderFieldBufferPath tests that request with request path // larger than configured buffer size is rejected. func TestH1H1HeaderFieldBufferPath(t *testing.T) { // The value 100 is chosen so that sum of header fields bytes // does not exceed it. We use > 100 bytes URI to exceed this // limit. st := newServerTester([]string{"--header-field-buffer=100"}, t, func(w http.ResponseWriter, r *http.Request) { t.Fatal("execution path should not be here") }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1HeaderFieldBufferPath", path: "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 431; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H1HeaderFieldBuffer tests that request with header fields // larger than configured buffer size is rejected. func TestH1H1HeaderFieldBuffer(t *testing.T) { st := newServerTester([]string{"--header-field-buffer=10"}, t, func(w http.ResponseWriter, r *http.Request) { t.Fatal("execution path should not be here") }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1HeaderFieldBuffer", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 431; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H1HeaderFields tests that request with header fields more // than configured number is rejected. func TestH1H1HeaderFields(t *testing.T) { st := newServerTester([]string{"--max-header-fields=1"}, t, func(w http.ResponseWriter, r *http.Request) { t.Fatal("execution path should not be here") }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H1HeaderFields", header: []hpack.HeaderField{ // Add extra header field to ensure that // header field limit exceeds pair("Connection", "close"), }, }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 431; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H1Websocket tests that HTTP Upgrade to WebSocket works. func TestH1H1Websocket(t *testing.T) { st := newServerTesterHandler(nil, t, websocket.Handler(func(ws *websocket.Conn) { io.Copy(ws, ws) })) defer st.Close() content := []byte("hello world") res, err := st.websocket(requestParam{ name: "TestH1H1Websocket", body: content, }) if err != nil { t.Fatalf("Error st.websocket() = %v", err) } if got, want := res.body, content; !bytes.Equal(got, want) { t.Errorf("echo: %q; want %q", got, want) } } // TestH1H2ConnectFailure tests that server handles the situation that // connection attempt to HTTP/2 backend failed. func TestH1H2ConnectFailure(t *testing.T) { st := newServerTester([]string{"--http2-bridge"}, t, noopHandler) defer st.Close() // simulate backend connect attempt failure st.ts.Close() res, err := st.http1(requestParam{ name: "TestH1H2ConnectFailure", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } want := 503 if got := res.status; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H2NoHost tests that server rejects request without Host // header field for HTTP/2 backend. func TestH1H2NoHost(t *testing.T) { st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) { t.Errorf("server should not forward bad request") }) defer st.Close() // without Host header field, we expect 400 response if _, err := io.WriteString(st.conn, "GET / HTTP/1.1\r\nTest-Case: TestH1H2NoHost\r\n\r\n"); err != nil { t.Fatalf("Error io.WriteString() = %v", err) } resp, err := http.ReadResponse(bufio.NewReader(st.conn), nil) if err != nil { t.Fatalf("Error http.ReadResponse() = %v", err) } want := 400 if got := resp.StatusCode; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H2HTTP10 tests that server can accept HTTP/1.0 request // without Host header field func TestH1H2HTTP10(t *testing.T) { st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) { w.Header().Add("request-host", r.Host) }) defer st.Close() if _, err := io.WriteString(st.conn, "GET / HTTP/1.0\r\nTest-Case: TestH1H2HTTP10\r\n\r\n"); err != nil { t.Fatalf("Error io.WriteString() = %v", err) } resp, err := http.ReadResponse(bufio.NewReader(st.conn), nil) if err != nil { t.Fatalf("Error http.ReadResponse() = %v", err) } if got, want := resp.StatusCode, 200; got != want { t.Errorf("status: %v; want %v", got, want) } if got, want := resp.Header.Get("request-host"), st.backendHost; got != want { t.Errorf("request-host: %v; want %v", got, want) } } // TestH1H2HTTP10NoHostRewrite tests that server generates host header // field using actual backend server even if --no-http-rewrite is // used. func TestH1H2HTTP10NoHostRewrite(t *testing.T) { st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) { w.Header().Add("request-host", r.Host) }) defer st.Close() if _, err := io.WriteString(st.conn, "GET / HTTP/1.0\r\nTest-Case: TestH1H2HTTP10NoHostRewrite\r\n\r\n"); err != nil { t.Fatalf("Error io.WriteString() = %v", err) } resp, err := http.ReadResponse(bufio.NewReader(st.conn), nil) if err != nil { t.Fatalf("Error http.ReadResponse() = %v", err) } if got, want := resp.StatusCode, 200; got != want { t.Errorf("status: %v; want %v", got, want) } if got, want := resp.Header.Get("request-host"), st.backendHost; got != want { t.Errorf("request-host: %v; want %v", got, want) } } // TestH1H2CrumbleCookie tests that Cookies are crumbled and assembled // when forwarding to HTTP/2 backend link. go-nghttp2 server // concatenates crumbled Cookies automatically, so this test is not // much effective now. func TestH1H2CrumbleCookie(t *testing.T) { st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) { if got, want := r.Header.Get("Cookie"), "alpha; bravo; charlie"; got != want { t.Errorf("Cookie: %v; want %v", got, want) } }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H2CrumbleCookie", header: []hpack.HeaderField{ pair("Cookie", "alpha; bravo; charlie"), }, }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.status, 200; got != want { t.Errorf("status: %v; want %v", got, want) } } // TestH1H2GenerateVia tests that server generates Via header field to and // from backend server. func TestH1H2GenerateVia(t *testing.T) { st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) { if got, want := r.Header.Get("Via"), "1.1 nghttpx"; got != want { t.Errorf("Via: %v; want %v", got, want) } }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H2GenerateVia", }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.header.Get("Via"), "2 nghttpx"; got != want { t.Errorf("Via: %v; want %v", got, want) } } // TestH1H2AppendVia tests that server adds value to existing Via // header field to and from backend server. func TestH1H2AppendVia(t *testing.T) { st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) { if got, want := r.Header.Get("Via"), "foo, 1.1 nghttpx"; got != want { t.Errorf("Via: %v; want %v", got, want) } w.Header().Add("Via", "bar") }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H2AppendVia", header: []hpack.HeaderField{ pair("via", "foo"), }, }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.header.Get("Via"), "bar, 2 nghttpx"; got != want { t.Errorf("Via: %v; want %v", got, want) } } // TestH1H2NoVia tests that server does not add value to existing Via // header field to and from backend server. func TestH1H2NoVia(t *testing.T) { st := newServerTester([]string{"--http2-bridge", "--no-via"}, t, func(w http.ResponseWriter, r *http.Request) { if got, want := r.Header.Get("Via"), "foo"; got != want { t.Errorf("Via: %v; want %v", got, want) } w.Header().Add("Via", "bar") }) defer st.Close() res, err := st.http1(requestParam{ name: "TestH1H2NoVia", header: []hpack.HeaderField{ pair("via", "foo"), }, }) if err != nil { t.Fatalf("Error st.http1() = %v", err) } if got, want := res.header.Get("Via"), "bar"; got != want { t.Errorf("Via: %v; want %v", got, want) } }