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|
package http
import (
"bytes"
"context"
"fmt"
"io"
"net/http"
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/format/pktline"
"gopkg.in/src-d/go-git.v4/plumbing/protocol/packp"
"gopkg.in/src-d/go-git.v4/plumbing/transport"
"gopkg.in/src-d/go-git.v4/plumbing/transport/internal/common"
"gopkg.in/src-d/go-git.v4/utils/ioutil"
)
type upSession struct {
*session
}
func newUploadPackSession(c *http.Client, ep *transport.Endpoint, auth transport.AuthMethod) (transport.UploadPackSession, error) {
s, err := newSession(c, ep, auth)
return &upSession{s}, err
}
func (s *upSession) AdvertisedReferences() (*packp.AdvRefs, error) {
return advertisedReferences(s.session, transport.UploadPackServiceName)
}
func (s *upSession) UploadPack(
ctx context.Context, req *packp.UploadPackRequest,
) (*packp.UploadPackResponse, error) {
if req.IsEmpty() {
return nil, transport.ErrEmptyUploadPackRequest
}
if err := req.Validate(); err != nil {
return nil, err
}
url := fmt.Sprintf(
"%s/%s",
s.endpoint.String(), transport.UploadPackServiceName,
)
content, err := uploadPackRequestToReader(req)
if err != nil {
return nil, err
}
res, err := s.doRequest(ctx, http.MethodPost, url, content)
if err != nil {
return nil, err
}
r, err := ioutil.NonEmptyReader(res.Body)
if err != nil {
if err == ioutil.ErrEmptyReader || err == io.ErrUnexpectedEOF {
return nil, transport.ErrEmptyUploadPackRequest
}
return nil, err
}
rc := ioutil.NewReadCloser(r, res.Body)
return common.DecodeUploadPackResponse(rc, req)
}
// Close does nothing.
func (s *upSession) Close() error {
return nil
}
func (s *upSession) doRequest(
ctx context.Context, method, url string, content *bytes.Buffer,
) (*http.Response, error) {
var body io.Reader
if content != nil {
body = content
}
req, err := http.NewRequest(method, url, body)
if err != nil {
return nil, plumbing.NewPermanentError(err)
}
applyHeadersToRequest(req, content, s.endpoint.Host, transport.UploadPackServiceName)
s.applyAuthToRequest(req)
res, err := s.client.Do(req.WithContext(ctx))
if err != nil {
return nil, plumbing.NewUnexpectedError(err)
}
if err := NewErr(res); err != nil {
_ = res.Body.Close()
return nil, err
}
return res, nil
}
func uploadPackRequestToReader(req *packp.UploadPackRequest) (*bytes.Buffer, error) {
buf := bytes.NewBuffer(nil)
e := pktline.NewEncoder(buf)
if err := req.UploadRequest.Encode(buf); err != nil {
return nil, fmt.Errorf("sending upload-req message: %s", err)
}
if err := req.UploadHaves.Encode(buf, false); err != nil {
return nil, fmt.Errorf("sending haves message: %s", err)
}
if err := e.EncodeString("done\n"); err != nil {
return nil, err
}
return buf, nil
}
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