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|
package http
import (
"fmt"
"io"
"net/http"
"strings"
"gopkg.in/src-d/go-git.v4/clients/common"
"gopkg.in/src-d/go-git.v4/core"
"gopkg.in/src-d/go-git.v4/formats/pktline"
)
type GitUploadPackService struct {
client *http.Client
endpoint common.Endpoint
auth HTTPAuthMethod
}
func NewGitUploadPackService(endpoint common.Endpoint) common.GitUploadPackService {
return &GitUploadPackService{
client: http.DefaultClient,
endpoint: endpoint,
}
}
func (s *GitUploadPackService) Connect() error {
return nil
}
func (s *GitUploadPackService) ConnectWithAuth(auth common.AuthMethod) error {
httpAuth, ok := auth.(HTTPAuthMethod)
if !ok {
return common.ErrInvalidAuthMethod
}
s.auth = httpAuth
return nil
}
func (s *GitUploadPackService) Info() (*common.GitUploadPackInfo, error) {
url := fmt.Sprintf(
"%s/info/refs?service=%s",
s.endpoint.String(), common.GitUploadPackServiceName,
)
res, err := s.doRequest("GET", url, nil)
if err != nil {
return nil, err
}
defer res.Body.Close()
i := common.NewGitUploadPackInfo()
return i, i.Decode(pktline.NewDecoder(res.Body))
}
func (s *GitUploadPackService) Fetch(r *common.GitUploadPackRequest) (io.ReadCloser, error) {
url := fmt.Sprintf(
"%s/%s",
s.endpoint.String(), common.GitUploadPackServiceName,
)
res, err := s.doRequest("POST", url, r.Reader())
if err != nil {
return nil, err
}
if err := s.discardResponseInfo(res.Body); err != nil {
return nil, err
}
return res.Body, nil
}
func (s *GitUploadPackService) discardResponseInfo(r io.Reader) error {
decoder := pktline.NewDecoder(r)
for {
line, err := decoder.ReadLine()
if err != nil {
break
}
if line == "NAK\n" {
break
}
}
return 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, core.NewPermanentError(err)
}
s.applyHeadersToRequest(req, content)
s.applyAuthToRequest(req)
res, err := s.client.Do(req)
if err != nil {
return nil, core.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()))
}
}
func (s *GitUploadPackService) applyAuthToRequest(req *http.Request) {
if s.auth == nil {
return
}
s.auth.setAuth(req)
}
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