Accept GetArchiveRequest param

Parse the GetArchiveRequest from the send data header and
use it when making calling the GetArchive RPC on gitaly.

gitaly_integration_test.go

@@ -184,6 +184,48 @@ func TestAllowedGetGitBlob(t *testing.T) {
 func TestAllowedGetGitArchive(t *testing.T) {
 	skipUnlessRealGitaly(t)
 
+	// Create the repository in the Gitaly server
+	apiResponse := realGitalyOkBody(t)
+	require.NoError(t, ensureGitalyRepository(t, apiResponse))
+
+	archivePath := path.Join(scratchDir, "my/path")
+	archivePrefix := "repo-1"
+
+	msg := serializedProtoMessage("GetArchiveRequest", &gitalypb.GetArchiveRequest{
+		Repository: &apiResponse.Repository,
+		CommitId:   "HEAD",
+		Prefix:     archivePrefix,
+		Format:     gitalypb.GetArchiveRequest_TAR,
+		Path:       []byte("files"),
+	})
+	jsonParams := buildGitalyRPCParams(gitalyAddress, rpcArg{"ArchivePath", archivePath}, msg)
+
+	resp, body, err := doSendDataRequest("/archive.tar", "git-archive", jsonParams)
+	require.NoError(t, err)
+	assert.Equal(t, 200, resp.StatusCode, "GET %q: status code", resp.Request.URL)
+	assertNginxResponseBuffering(t, "no", resp, "GET %q: nginx response buffering", resp.Request.URL)
+
+	// Ensure the tar file is readable
+	foundEntry := false
+	tr := tar.NewReader(bytes.NewReader(body))
+	for {
+		hdr, err := tr.Next()
+		if err != nil {
+			break
+		}
+
+		if hdr.Name == archivePrefix+"/" {
+			foundEntry = true
+			break
+		}
+	}
+
+	assert.True(t, foundEntry, "Couldn't find %v directory entry", archivePrefix)
+}
+
+func TestAllowedGetGitArchiveOldPayload(t *testing.T) {
+	skipUnlessRealGitaly(t)
+
 	// Create the repository in the Gitaly server
 	apiResponse := realGitalyOkBody(t)
 	repo := apiResponse.Repository

gitaly_test.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
@@ -635,6 +636,16 @@ func serializedMessage(name string, arg proto.Message) rpcArg {
 	return rpcArg{name, str}
 }
 
+func serializedProtoMessage(name string, arg proto.Message) rpcArg {
+	msg, err := proto.Marshal(arg)
+
+	if err != nil {
+		panic(err)
+	}
+
+	return rpcArg{name, base64.URLEncoding.EncodeToString(msg)}
+}
+
 type combinedServer struct {
 	*grpc.Server
 	*testhelper.GitalyTestServer

internal/git/archive.go

@@ -15,6 +15,8 @@ import (
 	"regexp"
 	"time"
 
+	"github.com/golang/protobuf/proto"
+
 	"github.com/prometheus/client_golang/prometheus"
 
 	"gitlab.com/gitlab-org/gitaly-proto/go/gitalypb"
@@ -32,6 +34,7 @@ type archiveParams struct {
 	GitalyServer      gitaly.Server
 	GitalyRepository  gitalypb.Repository
 	DisableCache      bool
+	GetArchiveRequest []byte
 }
 
 var (
@@ -101,7 +104,7 @@ func (a *archive) Inject(w http.ResponseWriter, r *http.Request, sendData string
 
 	var archiveReader io.Reader
 
-	archiveReader, err = handleArchiveWithGitaly(r, params, format)
+	archiveReader, err = handleArchiveWithGitaly(w, r, params, format)
 	if err != nil {
 		helper.Fail500(w, r, fmt.Errorf("operations.GetArchive: %v", err))
 		return
@@ -129,18 +132,28 @@ func (a *archive) Inject(w http.ResponseWriter, r *http.Request, sendData string
 	}
 }
 
-func handleArchiveWithGitaly(r *http.Request, params archiveParams, format gitalypb.GetArchiveRequest_Format) (io.Reader, error) {
+func handleArchiveWithGitaly(w http.ResponseWriter, r *http.Request, params archiveParams, format gitalypb.GetArchiveRequest_Format) (io.Reader, error) {
+	var request *gitalypb.GetArchiveRequest
 	c, err := gitaly.NewRepositoryClient(params.GitalyServer)
 	if err != nil {
 		return nil, err
 	}
 
-	request := &gitalypb.GetArchiveRequest{
+	if params.GetArchiveRequest != nil {
+		request = &gitalypb.GetArchiveRequest{}
+
+		if err := proto.Unmarshal(params.GetArchiveRequest, request); err != nil {
+			helper.Fail500(w, r, fmt.Errorf("SendArchive: unmarshal GetArchiveRequest: %v", err))
+			return nil, err
+		}
+	} else {
+		request = &gitalypb.GetArchiveRequest{
 			Repository: &params.GitalyRepository,
 			CommitId:   params.CommitId,
 			Prefix:     params.ArchivePrefix,
 			Format:     format,
 		}
+	}
 
 	return c.ArchiveReader(r.Context(), request)
 }

internal/testhelper/gitaly_dummies.go

@@ -168,3 +168,11 @@ func (s *GitalyTestServer) SetConfig(context.Context, *gitalypb.SetConfigRequest
 func (s *GitalyTestServer) DiffStats(*gitalypb.DiffStatsRequest, gitalypb.DiffService_DiffStatsServer) error {
 	return nil
 }
+
+func (s *GitalyTestServer) FetchHTTPRemote(context.Context, *gitalypb.FetchHTTPRemoteRequest) (*gitalypb.FetchHTTPRemoteResponse, error) {
+	return nil, nil
+}
+
+func (s *GitalyTestServer) PreFetch(context.Context, *gitalypb.PreFetchRequest) (*gitalypb.PreFetchResponse, error) {
+	return nil, nil
+}