500 lines
13 KiB
Go
500 lines
13 KiB
Go
package nghttp2
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import (
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"fmt"
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"github.com/bradfitz/http2"
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"github.com/bradfitz/http2/hpack"
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"io"
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"io/ioutil"
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"net/http"
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"syscall"
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"testing"
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)
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// TestH1H2PlainGET tests whether simple HTTP/2 GET request works.
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func TestH2H1PlainGET(t *testing.T) {
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st := newServerTester(nil, t, noopHandler)
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1PlainGET",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := 200
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if res.status != want {
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t.Errorf("status = %v; want %v", res.status, want)
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}
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}
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// TestH2H1AddXff tests that server generates X-Forwarded-For header
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// field when forwarding request to backend.
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func TestH2H1AddXff(t *testing.T) {
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st := newServerTester([]string{"--add-x-forwarded-for"}, t, func(w http.ResponseWriter, r *http.Request) {
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xff := r.Header.Get("X-Forwarded-For")
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want := "127.0.0.1"
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if xff != want {
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t.Errorf("X-Forwarded-For = %v; want %v", xff, want)
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}
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})
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defer st.Close()
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_, err := st.http2(requestParam{
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name: "TestH2H1AddXff",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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}
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// TestH2H1AddXff2 tests that server appends X-Forwarded-For header
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// field to existing one when forwarding request to backend.
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func TestH2H1AddXff2(t *testing.T) {
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st := newServerTester([]string{"--add-x-forwarded-for"}, t, func(w http.ResponseWriter, r *http.Request) {
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xff := r.Header.Get("X-Forwarded-For")
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want := "host, 127.0.0.1"
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if xff != want {
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t.Errorf("X-Forwarded-For = %v; want %v", xff, want)
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}
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})
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defer st.Close()
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_, err := st.http2(requestParam{
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name: "TestH2H1AddXff2",
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header: []hpack.HeaderField{
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pair("x-forwarded-for", "host"),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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}
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// TestH2H1StripXff tests that --strip-incoming-x-forwarded-for
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// option.
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func TestH2H1StripXff(t *testing.T) {
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st := newServerTester([]string{"--strip-incoming-x-forwarded-for"}, t, func(w http.ResponseWriter, r *http.Request) {
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if xff, found := r.Header["X-Forwarded-For"]; found {
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t.Errorf("X-Forwarded-For = %v; want nothing", xff)
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}
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})
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defer st.Close()
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_, err := st.http2(requestParam{
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name: "TestH2H1StripXff1",
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header: []hpack.HeaderField{
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pair("x-forwarded-for", "host"),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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}
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// TestH2H1StripAddXff tests that --strip-incoming-x-forwarded-for and
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// --add-x-forwarded-for options.
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func TestH2H1StripAddXff(t *testing.T) {
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args := []string{
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"--strip-incoming-x-forwarded-for",
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"--add-x-forwarded-for",
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}
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st := newServerTester(args, t, func(w http.ResponseWriter, r *http.Request) {
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xff := r.Header.Get("X-Forwarded-For")
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want := "127.0.0.1"
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if xff != want {
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t.Errorf("X-Forwarded-For = %v; want %v", xff, want)
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}
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})
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defer st.Close()
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_, err := st.http2(requestParam{
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name: "TestH2H1StripAddXff",
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header: []hpack.HeaderField{
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pair("x-forwarded-for", "host"),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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}
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// TestH2H1BadRequestCL tests that server rejects request whose
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// content-length header field value does not match its request body
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// size.
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func TestH2H1BadRequestCL(t *testing.T) {
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st := newServerTester(nil, t, noopHandler)
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defer st.Close()
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// we set content-length: 1024, but the actual request body is
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// 3 bytes.
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res, err := st.http2(requestParam{
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name: "TestH2H1BadRequestCL",
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method: "POST",
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header: []hpack.HeaderField{
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pair("content-length", "1024"),
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},
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body: []byte("foo"),
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := http2.ErrCodeProtocol
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if res.errCode != want {
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t.Errorf("res.errCode = %v; want %v", res.errCode, want)
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}
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}
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// TestH2H1BadResponseCL tests that server returns error when
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// content-length response header field value does not match its
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// response body size.
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func TestH2H1BadResponseCL(t *testing.T) {
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st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
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// we set content-length: 1024, but only send 3 bytes.
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w.Header().Add("Content-Length", "1024")
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w.Write([]byte("foo"))
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1BadResponseCL",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := http2.ErrCodeProtocol
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if res.errCode != want {
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t.Errorf("res.errCode = %v; want %v", res.errCode, want)
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}
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}
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// TestH2H1LocationRewrite tests location header field rewriting
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// works.
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func TestH2H1LocationRewrite(t *testing.T) {
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st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
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// TODO we cannot get st.ts's port number here.. 8443
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// is just a place holder. We ignore it on rewrite.
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w.Header().Add("Location", "http://127.0.0.1:8443/p/q?a=b#fragment")
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1LocationRewrite",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := fmt.Sprintf("http://127.0.0.1:%v/p/q?a=b#fragment", serverPort)
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if got := res.header.Get("Location"); got != want {
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t.Errorf("Location: %v; want %v", got, want)
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}
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}
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// TestH2H1ChunkedRequestBody tests that chunked request body works.
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func TestH2H1ChunkedRequestBody(t *testing.T) {
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st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
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want := "[chunked]"
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if got := fmt.Sprint(r.TransferEncoding); got != want {
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t.Errorf("Transfer-Encoding: %v; want %v", got, want)
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}
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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t.Fatalf("Error reading r.body: %v", err)
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}
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want = "foo"
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if got := string(body); got != want {
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t.Errorf("body: %v; want %v", got, want)
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}
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})
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defer st.Close()
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_, err := st.http2(requestParam{
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name: "TestH2H1ChunkedRequestBody",
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method: "POST",
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body: []byte("foo"),
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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}
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// TestH2H1MultipleRequestCL tests that server rejects request with
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// multiple Content-Length request header fields.
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func TestH2H1MultipleRequestCL(t *testing.T) {
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st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
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t.Errorf("server should not forward bad request")
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1MultipleRequestCL",
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header: []hpack.HeaderField{
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pair("content-length", "1"),
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pair("content-length", "1"),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := 400
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if got := res.status; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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// TestH2H1InvalidRequestCL tests that server rejects request with
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// Content-Length which cannot be parsed as a number.
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func TestH2H1InvalidRequestCL(t *testing.T) {
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st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
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t.Errorf("server should not forward bad request")
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1InvalidRequestCL",
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header: []hpack.HeaderField{
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pair("content-length", ""),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := 400
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if got := res.status; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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// TestH2H1ConnectFailure tests that server handles the situation that
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// connection attempt to HTTP/1 backend failed.
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func TestH2H1ConnectFailure(t *testing.T) {
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st := newServerTester(nil, t, noopHandler)
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defer st.Close()
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// shutdown backend server to simulate backend connect failure
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st.ts.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1ConnectFailure",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := 503
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if got := res.status; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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// TestH2H1AssembleCookies tests that crumbled cookies in HTTP/2
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// request is assembled into 1 when forwarding to HTTP/1 backend link.
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func TestH2H1AssembleCookies(t *testing.T) {
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st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
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if got, want := r.Header.Get("Cookie"), "alpha; bravo; charlie"; got != want {
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t.Errorf("Cookie: %v; want %v", got, want)
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}
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1AssembleCookies",
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header: []hpack.HeaderField{
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pair("cookie", "alpha"),
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pair("cookie", "bravo"),
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pair("cookie", "charlie"),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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if got, want := res.status, 200; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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// TestH2H1TETrailer tests that server accepts TE request header field
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// if it has trailer only.
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func TestH2H1TETrailer(t *testing.T) {
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st := newServerTester(nil, t, noopHandler)
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1TETrailer",
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header: []hpack.HeaderField{
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pair("te", "trailer"),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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if got, want := res.status, 200; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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// TestH2H1TEGzip tests that server reset stream if TE request
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// header field contains gzip.
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func TestH2H1TEGzip(t *testing.T) {
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st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
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t.Error("server should not forward bad request")
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H1TEGzip",
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header: []hpack.HeaderField{
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pair("te", "gzip"),
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},
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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if got, want := res.errCode, http2.ErrCodeProtocol; got != want {
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t.Errorf("res.errCode = %v; want %v", res.errCode, want)
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}
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}
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// TestH2H1GracefulShutdown tests graceful shutdown.
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func TestH2H1GracefulShutdown(t *testing.T) {
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st := newServerTester(nil, t, noopHandler)
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defer st.Close()
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fmt.Fprint(st.conn, "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n")
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if err := st.fr.WriteSettings(); err != nil {
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t.Fatalf("st.fr.WriteSettings(): %v", err)
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}
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header := []hpack.HeaderField{
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pair(":method", "GET"),
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pair(":scheme", "http"),
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pair(":authority", st.authority),
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pair(":path", "/"),
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}
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for _, h := range header {
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_ = st.enc.WriteField(h)
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}
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if err := st.fr.WriteHeaders(http2.HeadersFrameParam{
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StreamID: 1,
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EndStream: false,
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EndHeaders: true,
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BlockFragment: st.headerBlkBuf.Bytes(),
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}); err != nil {
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t.Fatalf("st.fr.WriteHeaders(): %v", err)
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}
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// send SIGQUIT signal to nghttpx to perform graceful shutdown
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st.cmd.Process.Signal(syscall.SIGQUIT)
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// after signal, finish request body
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if err := st.fr.WriteData(1, true, nil); err != nil {
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t.Fatalf("st.fr.WriteData(): %v", err)
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}
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numGoAway := 0
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for {
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fr, err := st.readFrame()
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if err != nil {
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if err == io.EOF {
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want := 2
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if got := numGoAway; got != want {
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t.Fatalf("numGoAway: %v; want %v", got, want)
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}
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return
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}
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t.Fatalf("st.readFrame(): %v", err)
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}
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switch f := fr.(type) {
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case *http2.GoAwayFrame:
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numGoAway += 1
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want := http2.ErrCodeNo
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if got := f.ErrCode; got != want {
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t.Fatalf("f.ErrCode(%v): %v; want %v", numGoAway, got, want)
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}
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switch numGoAway {
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case 1:
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want := (uint32(1) << 31) - 1
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if got := f.LastStreamID; got != want {
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t.Fatalf("f.LastStreamID(%v): %v; want %v", numGoAway, got, want)
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}
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case 2:
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want := uint32(1)
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if got := f.LastStreamID; got != want {
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t.Fatalf("f.LastStreamID(%v): %v; want %v", numGoAway, got, want)
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}
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case 3:
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t.Fatalf("too many GOAWAYs received")
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}
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}
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}
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}
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// TestH2H2MultipleResponseCL tests that server returns error if
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// multiple Content-Length response header fields are received.
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func TestH2H2MultipleResponseCL(t *testing.T) {
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st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) {
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w.Header().Add("content-length", "1")
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w.Header().Add("content-length", "1")
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H2MultipleResponseCL",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := 502
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if got := res.status; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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// TestH2H2InvalidResponseCL tests that server returns error if
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// Content-Length response header field value cannot be parsed as a
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// number.
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func TestH2H2InvalidResponseCL(t *testing.T) {
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st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) {
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w.Header().Add("content-length", "")
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})
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defer st.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H2InvalidResponseCL",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := 502
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if got := res.status; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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// TestH2H2ConnectFailure tests that server handles the situation that
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// connection attempt to HTTP/2 backend failed.
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func TestH2H2ConnectFailure(t *testing.T) {
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st := newServerTester([]string{"--http2-bridge"}, t, noopHandler)
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defer st.Close()
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// simulate backend connect attempt failure
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st.ts.Close()
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res, err := st.http2(requestParam{
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name: "TestH2H2ConnectFailure",
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})
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if err != nil {
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t.Fatalf("Error st.http2() = %v", err)
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}
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want := 503
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if got := res.status; got != want {
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t.Errorf("status: %v; want %v", got, want)
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}
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}
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