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package http
import (
"fmt"
"io"
"net/http"
"strings"
"gopkg.in/src-d/go-git.v2/clients/common"
"gopkg.in/src-d/go-git.v2/formats/pktline"
)
type GitUploadPackService struct {
Client *http.Client
endpoint common.Endpoint
}
func NewGitUploadPackService() *GitUploadPackService {
return &GitUploadPackService{
Client: http.DefaultClient,
}
}
func (s *GitUploadPackService) Connect(url common.Endpoint) error {
s.endpoint = url
return nil
}
func (s *GitUploadPackService) Info() (*common.GitUploadPackInfo, error) {
url := fmt.Sprintf("%s/info/refs?service=%s", s.endpoint, common.GitUploadPackServiceName)
res, err := s.doRequest("GET", url, nil)
if err != nil {
return nil, err
}
defer res.Body.Close()
dec := pktline.NewDecoder(res.Body)
return common.NewGitUploadPackInfo(dec)
}
func (s *GitUploadPackService) Fetch(r *common.GitUploadPackRequest) (io.ReadCloser, error) {
url := fmt.Sprintf("%s/%s", s.endpoint, common.GitUploadPackServiceName)
res, err := s.doRequest("POST", url, r.Reader())
if err != nil {
return nil, err
}
h := make([]byte, 8)
if _, err := res.Body.Read(h); err != nil {
return nil, common.NewUnexpectedError(err)
}
return res.Body, nil
}
func (s *GitUploadPackService) doRequest(method, url string, content *strings.Reader) (*http.Response, error) {
var body io.Reader
if content != nil {
body = content
}
req, err := http.NewRequest(method, url, body)
if err != nil {
return nil, common.NewPermanentError(err)
}
s.applyHeadersToRequest(req, content)
res, err := s.Client.Do(req)
if err != nil {
return nil, common.NewUnexpectedError(err)
}
if err := NewHTTPError(res); err != nil {
return nil, err
}
return res, nil
}
func (s *GitUploadPackService) applyHeadersToRequest(req *http.Request, content *strings.Reader) {
req.Header.Add("User-Agent", "git/1.0")
req.Header.Add("Host", "github.com")
if content == nil {
req.Header.Add("Accept", "*/*")
} else {
req.Header.Add("Accept", "application/x-git-upload-pack-result")
req.Header.Add("Content-Type", "application/x-git-upload-pack-request")
req.Header.Add("Content-Length", string(content.Len()))
}
}
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