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|
package ssh
import (
"errors"
"fmt"
"sync"
"github.com/grpc-ecosystem/go-grpc-middleware/logging/logrus/ctxlogrus"
log "github.com/sirupsen/logrus"
"gitlab.com/gitlab-org/gitaly/internal/command"
"gitlab.com/gitlab-org/gitaly/internal/git"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
"gitlab.com/gitlab-org/gitaly/streamio"
)
func (s *server) SSHReceivePack(stream gitalypb.SSHService_SSHReceivePackServer) error {
req, err := stream.Recv() // First request contains only Repository, GlId, and GlUsername
if err != nil {
return helper.ErrInternal(err)
}
ctxlogrus.Extract(stream.Context()).WithFields(log.Fields{
"GlID": req.GlId,
"GlRepository": req.GlRepository,
"GlUsername": req.GlUsername,
"GitConfigOptions": req.GitConfigOptions,
"GitProtocol": req.GitProtocol,
}).Debug("SSHReceivePack")
if err = validateFirstReceivePackRequest(req); err != nil {
return helper.ErrInvalidArgument(err)
}
if err := s.sshReceivePack(stream, req); err != nil {
return helper.ErrInternal(err)
}
return nil
}
func (s *server) sshReceivePack(stream gitalypb.SSHService_SSHReceivePackServer, req *gitalypb.SSHReceivePackRequest) error {
ctx := stream.Context()
stdin := streamio.NewReader(func() ([]byte, error) {
request, err := stream.Recv()
return request.GetStdin(), err
})
var m sync.Mutex
stdout := streamio.NewSyncWriter(&m, func(p []byte) error {
return stream.Send(&gitalypb.SSHReceivePackResponse{Stdout: p})
})
stderr := streamio.NewSyncWriter(&m, func(p []byte) error {
return stream.Send(&gitalypb.SSHReceivePackResponse{Stderr: p})
})
repoPath, err := s.locator.GetRepoPath(req.Repository)
if err != nil {
return err
}
config, err := git.ConvertConfigOptions(req.GitConfigOptions)
if err != nil {
return err
}
cmd, err := s.gitCmdFactory.NewWithoutRepo(ctx,
git.SubCmd{
Name: "receive-pack",
Args: []string{repoPath},
},
git.WithStdin(stdin),
git.WithStdout(stdout),
git.WithStderr(stderr),
git.WithReceivePackHooks(ctx, s.cfg, req, "ssh"),
git.WithGitProtocol(ctx, req),
git.WithConfig(config...),
)
if err != nil {
return fmt.Errorf("start cmd: %v", err)
}
if err := cmd.Wait(); err != nil {
if status, ok := command.ExitStatus(err); ok {
return stream.Send(&gitalypb.SSHReceivePackResponse{
ExitStatus: &gitalypb.ExitStatus{Value: int32(status)},
})
}
return fmt.Errorf("cmd wait: %v", err)
}
return nil
}
func validateFirstReceivePackRequest(req *gitalypb.SSHReceivePackRequest) error {
if req.GlId == "" {
return errors.New("empty GlId")
}
if req.Stdin != nil {
return errors.New("non-empty data in first request")
}
if req.Repository == nil {
return errors.New("repository is empty")
}
return nil
}
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