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/*
In this file we handle the Git over SSH GitLab-Shell requests
*/
// Package git handles git operations
package git
import (
"fmt"
"net/http"
"gitlab.com/gitlab-org/gitaly/v16/proto/go/gitalypb"
"gitlab.com/gitlab-org/gitaly/v16/client"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/api"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/gitaly"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/helper/fail"
)
type flushWriter struct {
http.ResponseWriter
controller *http.ResponseController
}
func (f *flushWriter) Write(p []byte) (int, error) {
n, err := f.ResponseWriter.Write(p)
if err != nil {
return n, err
}
return n, f.controller.Flush()
}
// SSHUploadPack handles git pull via SSH connection between GitLab-Shell and Gitaly through Workhorse
func SSHUploadPack(a *api.API) http.Handler {
return repoPreAuthorizeHandler(a, handleSSHUploadPack)
}
// SSHReceivePack handles git push via SSH connection between GitLab-Shell and Gitaly through Workhorse
func SSHReceivePack(a *api.API) http.Handler {
return repoPreAuthorizeHandler(a, handleSSHReceivePack)
}
func handleSSHUploadPack(w http.ResponseWriter, r *http.Request, a *api.Response) {
controller := http.NewResponseController(w) //nolint:bodyclose // false-positive https://github.com/timakin/bodyclose/issues/52
if err := controller.EnableFullDuplex(); err != nil {
fail.Request(w, r, fmt.Errorf("enabling full duplex: %v", err))
return
}
conn, err := gitaly.NewConnection(a.GitalyServer)
if err != nil {
fail.Request(w, r, fmt.Errorf("look up for gitaly connection: %v", err))
return
}
registry, err := gitaly.Sidechannel()
if err != nil {
fail.Request(w, r, fmt.Errorf("sidechannel error: %v", err))
return
}
w.WriteHeader(http.StatusOK)
request := &gitalypb.SSHUploadPackWithSidechannelRequest{
Repository: &a.Repository,
GitProtocol: r.Header.Get("Git-Protocol"),
GitConfigOptions: a.GitConfigOptions,
}
out := &flushWriter{ResponseWriter: w, controller: controller}
_, err = client.UploadPackWithSidechannelWithResult(r.Context(), conn, registry, r.Body, out, out, request)
if err != nil {
fail.Request(w, r, fmt.Errorf("upload pack failed: %v", err))
return
}
}
func handleSSHReceivePack(w http.ResponseWriter, r *http.Request, a *api.Response) {
controller := http.NewResponseController(w) //nolint:bodyclose // false-positive https://github.com/timakin/bodyclose/issues/52
if err := controller.EnableFullDuplex(); err != nil {
fail.Request(w, r, fmt.Errorf("enabling full duplex: %v", err))
return
}
conn, err := gitaly.NewConnection(a.GitalyServer)
if err != nil {
fail.Request(w, r, fmt.Errorf("look up for gitaly connection: %v", err))
return
}
w.WriteHeader(http.StatusOK)
request := &gitalypb.SSHReceivePackRequest{
Repository: &a.Repository,
GlId: a.GL_ID,
GlRepository: a.GL_REPOSITORY,
GlUsername: a.GL_USERNAME,
GitProtocol: r.Header.Get("Git-Protocol"),
GitConfigOptions: a.GitConfigOptions,
}
out := &flushWriter{ResponseWriter: w, controller: controller}
_, err = client.ReceivePack(r.Context(), conn, r.Body, out, out, request)
if err != nil {
fail.Request(w, r, fmt.Errorf("receive pack failed: %v", err))
return
}
}
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