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path: root/plumbing/transport/http/receive_pack.go
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package http

import (
	"bytes"
	"fmt"
	"io"
	"net/http"

	"gopkg.in/src-d/go-git.v4/plumbing"
	"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/utils/ioutil"
)

type rpSession struct {
	*session
}

func newReceivePackSession(c *http.Client, ep transport.Endpoint, auth transport.AuthMethod) (transport.ReceivePackSession, error) {
	s, err := newSession(c, ep, auth)
	return &rpSession{s}, err
}

func (s *rpSession) AdvertisedReferences() (*packp.AdvRefs, error) {
	return advertisedReferences(s.session, transport.ReceivePackServiceName)
}

func (s *rpSession) ReceivePack(req *packp.ReferenceUpdateRequest) (
	*packp.ReportStatus, error) {
	url := fmt.Sprintf(
		"%s/%s",
		s.endpoint.String(), transport.ReceivePackServiceName,
	)

	buf := bytes.NewBuffer(nil)
	if err := req.Encode(buf); err != nil {
		return nil, err
	}

	res, err := s.doRequest(http.MethodPost, url, buf)
	if err != nil {
		return nil, err
	}

	r, err := ioutil.NonEmptyReader(res.Body)
	if err != nil {
		return nil, err
	}

	rc := ioutil.NewReadCloser(r, res.Body)

	report := packp.NewReportStatus()
	if err := report.Decode(rc); err != nil {
		return nil, err
	}

	return report, report.Error()
}

func (s *rpSession) doRequest(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.ReceivePackServiceName)
	s.applyAuthToRequest(req)

	res, err := s.client.Do(req)
	if err != nil {
		return nil, plumbing.NewUnexpectedError(err)
	}

	if err := NewErr(res); err != nil {
		_ = res.Body.Close()
		return nil, err
	}

	return res, nil
}