Commit e4807eec authored by Nick Thomas's avatar Nick Thomas

Remove local git receive-pack implementation

parent dd755e07
...@@ -8,9 +8,7 @@ import ( ...@@ -8,9 +8,7 @@ import (
"fmt" "fmt"
"io" "io"
"net/http" "net/http"
"os/exec"
"path/filepath" "path/filepath"
"strings"
"sync" "sync"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/api" "gitlab.com/gitlab-org/gitlab-workhorse/internal/api"
...@@ -67,22 +65,6 @@ func repoPreAuthorizeHandler(myAPI *api.API, handleFunc api.HandleFunc) http.Han ...@@ -67,22 +65,6 @@ func repoPreAuthorizeHandler(myAPI *api.API, handleFunc api.HandleFunc) http.Han
}, "") }, "")
} }
func startGitCommand(a *api.Response, stdin io.Reader, stdout io.Writer, action string, options ...string) (cmd *exec.Cmd, err error) {
// Prepare our Git subprocess
args := []string{subCommand(action), "--stateless-rpc"}
args = append(args, options...)
args = append(args, a.RepoPath)
cmd = gitCommandApi(a, "git", args...)
cmd.Stdin = stdin
cmd.Stdout = stdout
if err = cmd.Start(); err != nil {
return nil, fmt.Errorf("start %v: %v", cmd.Args, err)
}
return cmd, nil
}
func writePostRPCHeader(w http.ResponseWriter, action string) { func writePostRPCHeader(w http.ResponseWriter, action string) {
w.Header().Set("Content-Type", fmt.Sprintf("application/x-%s-result", action)) w.Header().Set("Content-Type", fmt.Sprintf("application/x-%s-result", action))
w.Header().Set("Cache-Control", "no-cache") w.Header().Set("Cache-Control", "no-cache")
...@@ -95,10 +77,6 @@ func getService(r *http.Request) string { ...@@ -95,10 +77,6 @@ func getService(r *http.Request) string {
return filepath.Base(r.URL.Path) return filepath.Base(r.URL.Path)
} }
func subCommand(rpc string) string {
return strings.TrimPrefix(rpc, "git-")
}
type countReadCloser struct { type countReadCloser struct {
n int64 n int64
io.ReadCloser io.ReadCloser
......
package git
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"os/exec"
"testing"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/api"
)
const (
expectedBytes = 102400
GL_ID = "test-user"
)
// From https://npf.io/2015/06/testing-exec-command/
func fakeExecCommand(command string, args ...string) *exec.Cmd {
cs := []string{"-test.run=TestGitCommandProcess", "--", command}
cs = append(cs, args...)
cmd := exec.Command(os.Args[0], cs...)
return cmd
}
func createTestPayload() []byte {
return bytes.Repeat([]byte{'0'}, expectedBytes)
}
func TestHandleReceivePack(t *testing.T) {
testHandlePostRpc(t, "git-receive-pack", handleReceivePack)
}
func testHandlePostRpc(t *testing.T, action string, handler func(*HttpResponseWriter, *http.Request, *api.Response) error) {
execCommand = fakeExecCommand
defer func() { execCommand = exec.Command }()
testInput := createTestPayload()
body := bytes.NewReader([]byte(testInput))
url := fmt.Sprintf("/gitlab/gitlab-ce.git/?service=%s", action)
req, err := http.NewRequest("GET", url, body)
if err != nil {
t.Fatal(err)
}
resp := &api.Response{GL_ID: GL_ID}
rr := httptest.NewRecorder()
handler(NewHttpResponseWriter(rr), req, resp)
// Check HTTP status code
if status := rr.Code; status != http.StatusOK {
t.Errorf("handler returned wrong status code: expected: %v, got %v",
http.StatusOK, status)
}
ct := fmt.Sprintf("application/x-%s-result", action)
headers := []struct {
key string
value string
}{
{"Content-Type", ct},
{"Cache-Control", "no-cache"},
}
// Check HTTP headers
for _, h := range headers {
if value := rr.Header().Get(h.key); value != h.value {
t.Errorf("HTTP header %v does not match: expected: %v, got %v",
h.key, h.value, value)
}
}
if rr.Body.String() != string(testInput) {
t.Errorf("handler did not receive expected data: got %d, expected %d bytes",
len(rr.Body.String()), len(testInput))
}
}
func stringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
func TestGitCommandProcess(t *testing.T) {
if os.Getenv("GL_ID") != GL_ID {
return
}
defer os.Exit(0)
uploadPack := stringInSlice("upload-pack", os.Args)
if uploadPack {
// First, send a large payload to stdout so that this executable will be blocked
// until the reader consumes the data
testInput := createTestPayload()
body := bytes.NewReader([]byte(testInput))
io.Copy(os.Stdout, body)
// Now consume all the data to unblock the sender
ioutil.ReadAll(os.Stdin)
} else {
io.Copy(os.Stdout, os.Stdin)
}
}
package git package git
import ( import (
"context"
"fmt" "fmt"
"io"
"net/http" "net/http"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/api" "gitlab.com/gitlab-org/gitlab-workhorse/internal/api"
...@@ -20,41 +18,14 @@ func handleReceivePack(w *HttpResponseWriter, r *http.Request, a *api.Response) ...@@ -20,41 +18,14 @@ func handleReceivePack(w *HttpResponseWriter, r *http.Request, a *api.Response)
cr, cw := helper.NewWriteAfterReader(r.Body, w) cr, cw := helper.NewWriteAfterReader(r.Body, w)
defer cw.Flush() defer cw.Flush()
var err error
if a.GitalyServer.Address == "" {
err = handleReceivePackLocally(a, r, cr, cw, action)
} else {
gitProtocol := r.Header.Get("Git-Protocol") gitProtocol := r.Header.Get("Git-Protocol")
err = handleReceivePackWithGitaly(r.Context(), a, cr, cw, gitProtocol)
}
return err
}
func handleReceivePackLocally(a *api.Response, r *http.Request, stdin io.Reader, stdout io.Writer, action string) error {
cmd, err := startGitCommand(a, stdin, stdout, action)
if err != nil {
return fmt.Errorf("startGitCommand: %v", err)
}
defer helper.CleanUpProcessGroup(cmd)
if err := cmd.Wait(); err != nil {
helper.LogError(r, fmt.Errorf("wait for %v: %v", cmd.Args, err))
// Return nil because the response body has been written to already.
return nil
}
return nil
}
func handleReceivePackWithGitaly(ctx context.Context, a *api.Response, clientRequest io.Reader, clientResponse io.Writer, gitProtocol string) error {
smarthttp, err := gitaly.NewSmartHTTPClient(a.GitalyServer) smarthttp, err := gitaly.NewSmartHTTPClient(a.GitalyServer)
if err != nil { if err != nil {
return fmt.Errorf("smarthttp.ReceivePack: %v", err) return fmt.Errorf("smarthttp.ReceivePack: %v", err)
} }
if err := smarthttp.ReceivePack(ctx, &a.Repository, a.GL_ID, a.GL_USERNAME, a.GL_REPOSITORY, a.GitConfigOptions, clientRequest, clientResponse, gitProtocol); err != nil { if err := smarthttp.ReceivePack(r.Context(), &a.Repository, a.GL_ID, a.GL_USERNAME, a.GL_REPOSITORY, a.GitConfigOptions, cr, cw, gitProtocol); err != nil {
return fmt.Errorf("smarthttp.ReceivePack: %v", err) return fmt.Errorf("smarthttp.ReceivePack: %v", err)
} }
......
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