Merge pull request #1382 from monnand/650-http-utils
650 http utils and user agent field
This commit is contained in:
Victor Vieux
commit
67be3be855
101
docs/registry.go
101
docs/registry.go
@ -100,13 +100,6 @@ func ResolveRepositoryName(reposName string) (string, string, error) {
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return endpoint, reposName, err
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}
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// VersionInfo is used to model entities which has a version.
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// It is basically a tupple with name and version.
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type VersionInfo interface {
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Name() string
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Version() string
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}
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func doWithCookies(c *http.Client, req *http.Request) (*http.Response, error) {
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for _, cookie := range c.Jar.Cookies(req.URL) {
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req.AddCookie(cookie)
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@ -121,29 +114,14 @@ func doWithCookies(c *http.Client, req *http.Request) (*http.Response, error) {
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return res, err
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}
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// Set the user agent field in the header based on the versions provided
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// in NewRegistry() and extra.
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func (r *Registry) setUserAgent(req *http.Request, extra ...VersionInfo) {
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if len(r.baseVersions)+len(extra) == 0 {
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return
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}
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if len(extra) == 0 {
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req.Header.Set("User-Agent", r.baseVersionsStr)
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} else {
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req.Header.Set("User-Agent", appendVersions(r.baseVersionsStr, extra...))
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}
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return
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}
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// Retrieve the history of a given image from the Registry.
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// Return a list of the parent's json (requested image included)
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func (r *Registry) GetRemoteHistory(imgID, registry string, token []string) ([]string, error) {
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req, err := http.NewRequest("GET", registry+"images/"+imgID+"/ancestry", nil)
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req, err := r.reqFactory.NewRequest("GET", registry+"images/"+imgID+"/ancestry", nil)
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if err != nil {
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return nil, err
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}
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req.Header.Set("Authorization", "Token "+strings.Join(token, ", "))
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r.setUserAgent(req)
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res, err := doWithCookies(r.client, req)
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if err != nil || res.StatusCode != 200 {
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if res != nil {
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@ -170,7 +148,7 @@ func (r *Registry) GetRemoteHistory(imgID, registry string, token []string) ([]s
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func (r *Registry) LookupRemoteImage(imgID, registry string, token []string) bool {
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rt := &http.Transport{Proxy: http.ProxyFromEnvironment}
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req, err := http.NewRequest("GET", registry+"images/"+imgID+"/json", nil)
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req, err := r.reqFactory.NewRequest("GET", registry+"images/"+imgID+"/json", nil)
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if err != nil {
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return false
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}
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@ -185,12 +163,11 @@ func (r *Registry) LookupRemoteImage(imgID, registry string, token []string) boo
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// Retrieve an image from the Registry.
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func (r *Registry) GetRemoteImageJSON(imgID, registry string, token []string) ([]byte, int, error) {
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// Get the JSON
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req, err := http.NewRequest("GET", registry+"images/"+imgID+"/json", nil)
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req, err := r.reqFactory.NewRequest("GET", registry+"images/"+imgID+"/json", nil)
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if err != nil {
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return nil, -1, fmt.Errorf("Failed to download json: %s", err)
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}
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req.Header.Set("Authorization", "Token "+strings.Join(token, ", "))
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r.setUserAgent(req)
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res, err := doWithCookies(r.client, req)
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if err != nil {
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return nil, -1, fmt.Errorf("Failed to download json: %s", err)
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@ -213,12 +190,11 @@ func (r *Registry) GetRemoteImageJSON(imgID, registry string, token []string) ([
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}
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func (r *Registry) GetRemoteImageLayer(imgID, registry string, token []string) (io.ReadCloser, error) {
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req, err := http.NewRequest("GET", registry+"images/"+imgID+"/layer", nil)
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req, err := r.reqFactory.NewRequest("GET", registry+"images/"+imgID+"/layer", nil)
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if err != nil {
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return nil, fmt.Errorf("Error while getting from the server: %s\n", err)
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}
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req.Header.Set("Authorization", "Token "+strings.Join(token, ", "))
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r.setUserAgent(req)
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res, err := doWithCookies(r.client, req)
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if err != nil {
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return nil, err
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@ -239,7 +215,6 @@ func (r *Registry) GetRemoteTags(registries []string, repository string, token [
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return nil, err
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}
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req.Header.Set("Authorization", "Token "+strings.Join(token, ", "))
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r.setUserAgent(req)
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res, err := doWithCookies(r.client, req)
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if err != nil {
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return nil, err
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@ -281,7 +256,6 @@ func (r *Registry) GetRepositoryData(indexEp, remote string) (*RepositoryData, e
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req.SetBasicAuth(r.authConfig.Username, r.authConfig.Password)
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}
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req.Header.Set("X-Docker-Token", "true")
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r.setUserAgent(req)
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res, err := r.client.Do(req)
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if err != nil {
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@ -339,7 +313,7 @@ func (r *Registry) PushImageChecksumRegistry(imgData *ImgData, registry string,
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utils.Debugf("[registry] Calling PUT %s", registry+"images/"+imgData.ID+"/checksum")
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req, err := http.NewRequest("PUT", registry+"images/"+imgData.ID+"/checksum", nil)
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req, err := r.reqFactory.NewRequest("PUT", registry+"images/"+imgData.ID+"/checksum", nil)
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if err != nil {
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return err
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}
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@ -375,13 +349,12 @@ func (r *Registry) PushImageJSONRegistry(imgData *ImgData, jsonRaw []byte, regis
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utils.Debugf("[registry] Calling PUT %s", registry+"images/"+imgData.ID+"/json")
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req, err := http.NewRequest("PUT", registry+"images/"+imgData.ID+"/json", bytes.NewReader(jsonRaw))
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req, err := r.reqFactory.NewRequest("PUT", registry+"images/"+imgData.ID+"/json", bytes.NewReader(jsonRaw))
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if err != nil {
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return err
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}
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req.Header.Add("Content-type", "application/json")
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req.Header.Set("Authorization", "Token "+strings.Join(token, ","))
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r.setUserAgent(req)
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res, err := doWithCookies(r.client, req)
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if err != nil {
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@ -410,14 +383,13 @@ func (r *Registry) PushImageLayerRegistry(imgID string, layer io.Reader, registr
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tarsumLayer := &utils.TarSum{Reader: layer}
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req, err := http.NewRequest("PUT", registry+"images/"+imgID+"/layer", tarsumLayer)
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req, err := r.reqFactory.NewRequest("PUT", registry+"images/"+imgID+"/layer", tarsumLayer)
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if err != nil {
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return "", err
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}
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req.ContentLength = -1
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req.TransferEncoding = []string{"chunked"}
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req.Header.Set("Authorization", "Token "+strings.Join(token, ","))
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r.setUserAgent(req)
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res, err := doWithCookies(r.client, req)
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if err != nil {
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return "", fmt.Errorf("Failed to upload layer: %s", err)
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@ -435,7 +407,7 @@ func (r *Registry) PushImageLayerRegistry(imgID string, layer io.Reader, registr
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}
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func (r *Registry) opaqueRequest(method, urlStr string, body io.Reader) (*http.Request, error) {
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req, err := http.NewRequest(method, urlStr, body)
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req, err := r.reqFactory.NewRequest(method, urlStr, body)
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if err != nil {
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return nil, err
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}
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@ -455,7 +427,6 @@ func (r *Registry) PushRegistryTag(remote, revision, tag, registry string, token
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}
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req.Header.Add("Content-type", "application/json")
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req.Header.Set("Authorization", "Token "+strings.Join(token, ","))
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r.setUserAgent(req)
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req.ContentLength = int64(len(revision))
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res, err := doWithCookies(r.client, req)
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if err != nil {
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@ -500,7 +471,6 @@ func (r *Registry) PushImageJSONIndex(indexEp, remote string, imgList []*ImgData
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req.SetBasicAuth(r.authConfig.Username, r.authConfig.Password)
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req.ContentLength = int64(len(imgListJSON))
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req.Header.Set("X-Docker-Token", "true")
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r.setUserAgent(req)
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if validate {
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req.Header["X-Docker-Endpoints"] = regs
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}
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@ -521,7 +491,6 @@ func (r *Registry) PushImageJSONIndex(indexEp, remote string, imgList []*ImgData
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req.SetBasicAuth(r.authConfig.Username, r.authConfig.Password)
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req.ContentLength = int64(len(imgListJSON))
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req.Header.Set("X-Docker-Token", "true")
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r.setUserAgent(req)
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if validate {
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req.Header["X-Docker-Endpoints"] = regs
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}
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@ -576,7 +545,7 @@ func (r *Registry) PushImageJSONIndex(indexEp, remote string, imgList []*ImgData
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func (r *Registry) SearchRepositories(term string) (*SearchResults, error) {
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u := auth.IndexServerAddress() + "search?q=" + url.QueryEscape(term)
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req, err := http.NewRequest("GET", u, nil)
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req, err := r.reqFactory.NewRequest("GET", u, nil)
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if err != nil {
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return nil, err
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}
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@ -628,52 +597,12 @@ type ImgData struct {
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}
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type Registry struct {
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client *http.Client
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authConfig *auth.AuthConfig
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baseVersions []VersionInfo
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baseVersionsStr string
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client *http.Client
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authConfig *auth.AuthConfig
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reqFactory *utils.HTTPRequestFactory
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}
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func validVersion(version VersionInfo) bool {
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stopChars := " \t\r\n/"
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if strings.ContainsAny(version.Name(), stopChars) {
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return false
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}
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if strings.ContainsAny(version.Version(), stopChars) {
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return false
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}
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return true
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}
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// Convert versions to a string and append the string to the string base.
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//
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// Each VersionInfo will be converted to a string in the format of
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// "product/version", where the "product" is get from the Name() method, while
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// version is get from the Version() method. Several pieces of verson information
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// will be concatinated and separated by space.
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func appendVersions(base string, versions ...VersionInfo) string {
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if len(versions) == 0 {
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return base
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}
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var buf bytes.Buffer
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if len(base) > 0 {
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buf.Write([]byte(base))
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}
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for _, v := range versions {
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if !validVersion(v) {
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continue
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}
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buf.Write([]byte(v.Name()))
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buf.Write([]byte("/"))
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buf.Write([]byte(v.Version()))
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buf.Write([]byte(" "))
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}
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return buf.String()
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}
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func NewRegistry(root string, authConfig *auth.AuthConfig, baseVersions ...VersionInfo) (r *Registry, err error) {
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func NewRegistry(root string, authConfig *auth.AuthConfig, factory *utils.HTTPRequestFactory) (r *Registry, err error) {
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httpTransport := &http.Transport{
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DisableKeepAlives: true,
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Proxy: http.ProxyFromEnvironment,
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@ -689,7 +618,7 @@ func NewRegistry(root string, authConfig *auth.AuthConfig, baseVersions ...Versi
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if err != nil {
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return nil, err
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}
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r.baseVersions = baseVersions
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r.baseVersionsStr = appendVersions("", baseVersions...)
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r.reqFactory = factory
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return r, nil
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}
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