239cb0f4e9
Remove timeout shared function.
768 lines
24 KiB
Go
768 lines
24 KiB
Go
package registry
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import (
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"bytes"
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"crypto/sha256"
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"errors"
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"sync"
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// this is required for some certificates
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_ "crypto/sha512"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"net/http/cookiejar"
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"net/url"
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"strconv"
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"strings"
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"github.com/Sirupsen/logrus"
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"github.com/docker/distribution/reference"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/pkg/httputils"
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"github.com/docker/docker/pkg/ioutils"
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"github.com/docker/docker/pkg/stringid"
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"github.com/docker/docker/pkg/tarsum"
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)
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var (
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// ErrRepoNotFound is returned if the repository didn't exist on the
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// remote side
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ErrRepoNotFound = errors.New("Repository not found")
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)
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// A Session is used to communicate with a V1 registry
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type Session struct {
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indexEndpoint *Endpoint
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client *http.Client
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// TODO(tiborvass): remove authConfig
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authConfig *types.AuthConfig
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id string
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}
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type authTransport struct {
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http.RoundTripper
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*types.AuthConfig
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alwaysSetBasicAuth bool
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token []string
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mu sync.Mutex // guards modReq
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modReq map[*http.Request]*http.Request // original -> modified
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}
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// AuthTransport handles the auth layer when communicating with a v1 registry (private or official)
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//
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// For private v1 registries, set alwaysSetBasicAuth to true.
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//
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// For the official v1 registry, if there isn't already an Authorization header in the request,
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// but there is an X-Docker-Token header set to true, then Basic Auth will be used to set the Authorization header.
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// After sending the request with the provided base http.RoundTripper, if an X-Docker-Token header, representing
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// a token, is present in the response, then it gets cached and sent in the Authorization header of all subsequent
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// requests.
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//
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// If the server sends a token without the client having requested it, it is ignored.
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//
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// This RoundTripper also has a CancelRequest method important for correct timeout handling.
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func AuthTransport(base http.RoundTripper, authConfig *types.AuthConfig, alwaysSetBasicAuth bool) http.RoundTripper {
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if base == nil {
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base = http.DefaultTransport
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}
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return &authTransport{
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RoundTripper: base,
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AuthConfig: authConfig,
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alwaysSetBasicAuth: alwaysSetBasicAuth,
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modReq: make(map[*http.Request]*http.Request),
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}
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}
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// cloneRequest returns a clone of the provided *http.Request.
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// The clone is a shallow copy of the struct and its Header map.
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func cloneRequest(r *http.Request) *http.Request {
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// shallow copy of the struct
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r2 := new(http.Request)
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*r2 = *r
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// deep copy of the Header
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r2.Header = make(http.Header, len(r.Header))
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for k, s := range r.Header {
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r2.Header[k] = append([]string(nil), s...)
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}
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return r2
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}
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// RoundTrip changes a HTTP request's headers to add the necessary
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// authentication-related headers
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func (tr *authTransport) RoundTrip(orig *http.Request) (*http.Response, error) {
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// Authorization should not be set on 302 redirect for untrusted locations.
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// This logic mirrors the behavior in addRequiredHeadersToRedirectedRequests.
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// As the authorization logic is currently implemented in RoundTrip,
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// a 302 redirect is detected by looking at the Referrer header as go http package adds said header.
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// This is safe as Docker doesn't set Referrer in other scenarios.
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if orig.Header.Get("Referer") != "" && !trustedLocation(orig) {
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return tr.RoundTripper.RoundTrip(orig)
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}
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req := cloneRequest(orig)
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tr.mu.Lock()
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tr.modReq[orig] = req
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tr.mu.Unlock()
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if tr.alwaysSetBasicAuth {
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if tr.AuthConfig == nil {
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return nil, errors.New("unexpected error: empty auth config")
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}
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req.SetBasicAuth(tr.Username, tr.Password)
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return tr.RoundTripper.RoundTrip(req)
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}
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// Don't override
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if req.Header.Get("Authorization") == "" {
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if req.Header.Get("X-Docker-Token") == "true" && tr.AuthConfig != nil && len(tr.Username) > 0 {
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req.SetBasicAuth(tr.Username, tr.Password)
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} else if len(tr.token) > 0 {
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req.Header.Set("Authorization", "Token "+strings.Join(tr.token, ","))
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}
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}
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resp, err := tr.RoundTripper.RoundTrip(req)
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if err != nil {
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delete(tr.modReq, orig)
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return nil, err
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}
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if len(resp.Header["X-Docker-Token"]) > 0 {
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tr.token = resp.Header["X-Docker-Token"]
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}
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resp.Body = &ioutils.OnEOFReader{
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Rc: resp.Body,
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Fn: func() {
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tr.mu.Lock()
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delete(tr.modReq, orig)
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tr.mu.Unlock()
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},
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}
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return resp, nil
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}
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// CancelRequest cancels an in-flight request by closing its connection.
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func (tr *authTransport) CancelRequest(req *http.Request) {
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type canceler interface {
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CancelRequest(*http.Request)
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}
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if cr, ok := tr.RoundTripper.(canceler); ok {
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tr.mu.Lock()
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modReq := tr.modReq[req]
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delete(tr.modReq, req)
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tr.mu.Unlock()
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cr.CancelRequest(modReq)
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}
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}
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// NewSession creates a new session
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// TODO(tiborvass): remove authConfig param once registry client v2 is vendored
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func NewSession(client *http.Client, authConfig *types.AuthConfig, endpoint *Endpoint) (r *Session, err error) {
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r = &Session{
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authConfig: authConfig,
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client: client,
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indexEndpoint: endpoint,
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id: stringid.GenerateRandomID(),
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}
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var alwaysSetBasicAuth bool
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// If we're working with a standalone private registry over HTTPS, send Basic Auth headers
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// alongside all our requests.
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if endpoint.VersionString(1) != IndexServer && endpoint.URL.Scheme == "https" {
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info, err := endpoint.Ping()
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if err != nil {
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return nil, err
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}
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if info.Standalone && authConfig != nil {
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logrus.Debugf("Endpoint %s is eligible for private registry. Enabling decorator.", endpoint.String())
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alwaysSetBasicAuth = true
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}
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}
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// Annotate the transport unconditionally so that v2 can
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// properly fallback on v1 when an image is not found.
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client.Transport = AuthTransport(client.Transport, authConfig, alwaysSetBasicAuth)
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jar, err := cookiejar.New(nil)
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if err != nil {
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return nil, errors.New("cookiejar.New is not supposed to return an error")
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}
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client.Jar = jar
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return r, nil
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}
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// ID returns this registry session's ID.
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func (r *Session) ID() string {
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return r.id
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}
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// GetRemoteHistory retrieves the history of a given image from the registry.
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// It returns a list of the parent's JSON files (including the requested image).
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func (r *Session) GetRemoteHistory(imgID, registry string) ([]string, error) {
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res, err := r.client.Get(registry + "images/" + imgID + "/ancestry")
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if err != nil {
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return nil, err
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}
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defer res.Body.Close()
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if res.StatusCode != 200 {
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if res.StatusCode == 401 {
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return nil, errLoginRequired
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}
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return nil, httputils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to fetch remote history for %s", res.StatusCode, imgID), res)
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}
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var history []string
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if err := json.NewDecoder(res.Body).Decode(&history); err != nil {
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return nil, fmt.Errorf("Error while reading the http response: %v", err)
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}
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logrus.Debugf("Ancestry: %v", history)
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return history, nil
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}
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// LookupRemoteImage checks if an image exists in the registry
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func (r *Session) LookupRemoteImage(imgID, registry string) error {
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res, err := r.client.Get(registry + "images/" + imgID + "/json")
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if err != nil {
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return err
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}
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res.Body.Close()
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if res.StatusCode != 200 {
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return httputils.NewHTTPRequestError(fmt.Sprintf("HTTP code %d", res.StatusCode), res)
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}
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return nil
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}
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// GetRemoteImageJSON retrieves an image's JSON metadata from the registry.
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func (r *Session) GetRemoteImageJSON(imgID, registry string) ([]byte, int64, error) {
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res, err := r.client.Get(registry + "images/" + imgID + "/json")
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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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defer res.Body.Close()
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if res.StatusCode != 200 {
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return nil, -1, httputils.NewHTTPRequestError(fmt.Sprintf("HTTP code %d", res.StatusCode), res)
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}
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// if the size header is not present, then set it to '-1'
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imageSize := int64(-1)
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if hdr := res.Header.Get("X-Docker-Size"); hdr != "" {
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imageSize, err = strconv.ParseInt(hdr, 10, 64)
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if err != nil {
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return nil, -1, err
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}
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}
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jsonString, err := ioutil.ReadAll(res.Body)
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if err != nil {
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return nil, -1, fmt.Errorf("Failed to parse downloaded json: %v (%s)", err, jsonString)
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}
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return jsonString, imageSize, nil
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}
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// GetRemoteImageLayer retrieves an image layer from the registry
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func (r *Session) GetRemoteImageLayer(imgID, registry string, imgSize int64) (io.ReadCloser, error) {
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var (
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statusCode = 0
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res *http.Response
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err error
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imageURL = fmt.Sprintf("%simages/%s/layer", registry, imgID)
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)
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req, err := http.NewRequest("GET", imageURL, nil)
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if err != nil {
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return nil, fmt.Errorf("Error while getting from the server: %v", err)
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}
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statusCode = 0
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res, err = r.client.Do(req)
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if err != nil {
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logrus.Debugf("Error contacting registry %s: %v", registry, err)
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if res != nil {
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if res.Body != nil {
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res.Body.Close()
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}
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statusCode = res.StatusCode
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}
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return nil, fmt.Errorf("Server error: Status %d while fetching image layer (%s)",
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statusCode, imgID)
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}
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if res.StatusCode != 200 {
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res.Body.Close()
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return nil, fmt.Errorf("Server error: Status %d while fetching image layer (%s)",
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res.StatusCode, imgID)
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}
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if res.Header.Get("Accept-Ranges") == "bytes" && imgSize > 0 {
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logrus.Debugf("server supports resume")
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return httputils.ResumableRequestReaderWithInitialResponse(r.client, req, 5, imgSize, res), nil
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}
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logrus.Debugf("server doesn't support resume")
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return res.Body, nil
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}
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// GetRemoteTag retrieves the tag named in the askedTag argument from the given
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// repository. It queries each of the registries supplied in the registries
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// argument, and returns data from the first one that answers the query
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// successfully.
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func (r *Session) GetRemoteTag(registries []string, repositoryRef reference.Named, askedTag string) (string, error) {
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repository := repositoryRef.Name()
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if strings.Count(repository, "/") == 0 {
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// This will be removed once the registry supports auto-resolution on
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// the "library" namespace
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repository = "library/" + repository
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}
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for _, host := range registries {
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endpoint := fmt.Sprintf("%srepositories/%s/tags/%s", host, repository, askedTag)
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res, err := r.client.Get(endpoint)
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if err != nil {
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return "", err
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}
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logrus.Debugf("Got status code %d from %s", res.StatusCode, endpoint)
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defer res.Body.Close()
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if res.StatusCode == 404 {
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return "", ErrRepoNotFound
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}
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if res.StatusCode != 200 {
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continue
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}
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var tagID string
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if err := json.NewDecoder(res.Body).Decode(&tagID); err != nil {
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return "", err
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}
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return tagID, nil
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}
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return "", fmt.Errorf("Could not reach any registry endpoint")
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}
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// GetRemoteTags retrieves all tags from the given repository. It queries each
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// of the registries supplied in the registries argument, and returns data from
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// the first one that answers the query successfully. It returns a map with
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// tag names as the keys and image IDs as the values.
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func (r *Session) GetRemoteTags(registries []string, repositoryRef reference.Named) (map[string]string, error) {
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repository := repositoryRef.Name()
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if strings.Count(repository, "/") == 0 {
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// This will be removed once the registry supports auto-resolution on
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// the "library" namespace
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repository = "library/" + repository
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}
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for _, host := range registries {
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endpoint := fmt.Sprintf("%srepositories/%s/tags", host, repository)
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res, err := r.client.Get(endpoint)
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if err != nil {
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return nil, err
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}
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logrus.Debugf("Got status code %d from %s", res.StatusCode, endpoint)
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defer res.Body.Close()
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if res.StatusCode == 404 {
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return nil, ErrRepoNotFound
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}
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if res.StatusCode != 200 {
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continue
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}
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result := make(map[string]string)
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if err := json.NewDecoder(res.Body).Decode(&result); err != nil {
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return nil, err
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}
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return result, nil
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}
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return nil, fmt.Errorf("Could not reach any registry endpoint")
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}
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func buildEndpointsList(headers []string, indexEp string) ([]string, error) {
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var endpoints []string
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parsedURL, err := url.Parse(indexEp)
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if err != nil {
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return nil, err
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}
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var urlScheme = parsedURL.Scheme
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// The registry's URL scheme has to match the Index'
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for _, ep := range headers {
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epList := strings.Split(ep, ",")
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for _, epListElement := range epList {
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endpoints = append(
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endpoints,
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fmt.Sprintf("%s://%s/v1/", urlScheme, strings.TrimSpace(epListElement)))
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}
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}
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return endpoints, nil
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}
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// GetRepositoryData returns lists of images and endpoints for the repository
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func (r *Session) GetRepositoryData(remote reference.Named) (*RepositoryData, error) {
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repositoryTarget := fmt.Sprintf("%srepositories/%s/images", r.indexEndpoint.VersionString(1), remote.Name())
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logrus.Debugf("[registry] Calling GET %s", repositoryTarget)
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req, err := http.NewRequest("GET", repositoryTarget, nil)
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if err != nil {
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return nil, err
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}
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// this will set basic auth in r.client.Transport and send cached X-Docker-Token headers for all subsequent requests
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req.Header.Set("X-Docker-Token", "true")
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res, err := r.client.Do(req)
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if err != nil {
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// check if the error is because of i/o timeout
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// and return a non-obtuse error message for users
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// "Get https://index.docker.io/v1/repositories/library/busybox/images: i/o timeout"
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// was a top search on the docker user forum
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if isTimeout(err) {
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return nil, fmt.Errorf("Network timed out while trying to connect to %s. You may want to check your internet connection or if you are behind a proxy.", repositoryTarget)
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}
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return nil, fmt.Errorf("Error while pulling image: %v", err)
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}
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defer res.Body.Close()
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if res.StatusCode == 401 {
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return nil, errLoginRequired
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}
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// TODO: Right now we're ignoring checksums in the response body.
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// In the future, we need to use them to check image validity.
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if res.StatusCode == 404 {
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return nil, httputils.NewHTTPRequestError(fmt.Sprintf("HTTP code: %d", res.StatusCode), res)
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} else if res.StatusCode != 200 {
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errBody, err := ioutil.ReadAll(res.Body)
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if err != nil {
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logrus.Debugf("Error reading response body: %s", err)
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}
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return nil, httputils.NewHTTPRequestError(fmt.Sprintf("Error: Status %d trying to pull repository %s: %q", res.StatusCode, remote.Name(), errBody), res)
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}
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var endpoints []string
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if res.Header.Get("X-Docker-Endpoints") != "" {
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endpoints, err = buildEndpointsList(res.Header["X-Docker-Endpoints"], r.indexEndpoint.VersionString(1))
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if err != nil {
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return nil, err
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}
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} else {
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// Assume the endpoint is on the same host
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endpoints = append(endpoints, fmt.Sprintf("%s://%s/v1/", r.indexEndpoint.URL.Scheme, req.URL.Host))
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}
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remoteChecksums := []*ImgData{}
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if err := json.NewDecoder(res.Body).Decode(&remoteChecksums); err != nil {
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return nil, err
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}
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// Forge a better object from the retrieved data
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imgsData := make(map[string]*ImgData, len(remoteChecksums))
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for _, elem := range remoteChecksums {
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imgsData[elem.ID] = elem
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}
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return &RepositoryData{
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ImgList: imgsData,
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Endpoints: endpoints,
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}, nil
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}
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// PushImageChecksumRegistry uploads checksums for an image
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func (r *Session) PushImageChecksumRegistry(imgData *ImgData, registry string) error {
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u := registry + "images/" + imgData.ID + "/checksum"
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logrus.Debugf("[registry] Calling PUT %s", u)
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req, err := http.NewRequest("PUT", u, nil)
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if err != nil {
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return err
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}
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req.Header.Set("X-Docker-Checksum", imgData.Checksum)
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req.Header.Set("X-Docker-Checksum-Payload", imgData.ChecksumPayload)
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res, err := r.client.Do(req)
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if err != nil {
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return fmt.Errorf("Failed to upload metadata: %v", err)
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}
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defer res.Body.Close()
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if len(res.Cookies()) > 0 {
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r.client.Jar.SetCookies(req.URL, res.Cookies())
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}
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if res.StatusCode != 200 {
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errBody, err := ioutil.ReadAll(res.Body)
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if err != nil {
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return fmt.Errorf("HTTP code %d while uploading metadata and error when trying to parse response body: %s", res.StatusCode, err)
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}
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var jsonBody map[string]string
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if err := json.Unmarshal(errBody, &jsonBody); err != nil {
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errBody = []byte(err.Error())
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} else if jsonBody["error"] == "Image already exists" {
|
|
return ErrAlreadyExists
|
|
}
|
|
return fmt.Errorf("HTTP code %d while uploading metadata: %q", res.StatusCode, errBody)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// PushImageJSONRegistry pushes JSON metadata for a local image to the registry
|
|
func (r *Session) PushImageJSONRegistry(imgData *ImgData, jsonRaw []byte, registry string) error {
|
|
|
|
u := registry + "images/" + imgData.ID + "/json"
|
|
|
|
logrus.Debugf("[registry] Calling PUT %s", u)
|
|
|
|
req, err := http.NewRequest("PUT", u, bytes.NewReader(jsonRaw))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
req.Header.Add("Content-type", "application/json")
|
|
|
|
res, err := r.client.Do(req)
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to upload metadata: %s", err)
|
|
}
|
|
defer res.Body.Close()
|
|
if res.StatusCode == 401 && strings.HasPrefix(registry, "http://") {
|
|
return httputils.NewHTTPRequestError("HTTP code 401, Docker will not send auth headers over HTTP.", res)
|
|
}
|
|
if res.StatusCode != 200 {
|
|
errBody, err := ioutil.ReadAll(res.Body)
|
|
if err != nil {
|
|
return httputils.NewHTTPRequestError(fmt.Sprintf("HTTP code %d while uploading metadata and error when trying to parse response body: %s", res.StatusCode, err), res)
|
|
}
|
|
var jsonBody map[string]string
|
|
if err := json.Unmarshal(errBody, &jsonBody); err != nil {
|
|
errBody = []byte(err.Error())
|
|
} else if jsonBody["error"] == "Image already exists" {
|
|
return ErrAlreadyExists
|
|
}
|
|
return httputils.NewHTTPRequestError(fmt.Sprintf("HTTP code %d while uploading metadata: %q", res.StatusCode, errBody), res)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// PushImageLayerRegistry sends the checksum of an image layer to the registry
|
|
func (r *Session) PushImageLayerRegistry(imgID string, layer io.Reader, registry string, jsonRaw []byte) (checksum string, checksumPayload string, err error) {
|
|
u := registry + "images/" + imgID + "/layer"
|
|
|
|
logrus.Debugf("[registry] Calling PUT %s", u)
|
|
|
|
tarsumLayer, err := tarsum.NewTarSum(layer, false, tarsum.Version0)
|
|
if err != nil {
|
|
return "", "", err
|
|
}
|
|
h := sha256.New()
|
|
h.Write(jsonRaw)
|
|
h.Write([]byte{'\n'})
|
|
checksumLayer := io.TeeReader(tarsumLayer, h)
|
|
|
|
req, err := http.NewRequest("PUT", u, checksumLayer)
|
|
if err != nil {
|
|
return "", "", err
|
|
}
|
|
req.Header.Add("Content-Type", "application/octet-stream")
|
|
req.ContentLength = -1
|
|
req.TransferEncoding = []string{"chunked"}
|
|
res, err := r.client.Do(req)
|
|
if err != nil {
|
|
return "", "", fmt.Errorf("Failed to upload layer: %v", err)
|
|
}
|
|
if rc, ok := layer.(io.Closer); ok {
|
|
if err := rc.Close(); err != nil {
|
|
return "", "", err
|
|
}
|
|
}
|
|
defer res.Body.Close()
|
|
|
|
if res.StatusCode != 200 {
|
|
errBody, err := ioutil.ReadAll(res.Body)
|
|
if err != nil {
|
|
return "", "", httputils.NewHTTPRequestError(fmt.Sprintf("HTTP code %d while uploading metadata and error when trying to parse response body: %s", res.StatusCode, err), res)
|
|
}
|
|
return "", "", httputils.NewHTTPRequestError(fmt.Sprintf("Received HTTP code %d while uploading layer: %q", res.StatusCode, errBody), res)
|
|
}
|
|
|
|
checksumPayload = "sha256:" + hex.EncodeToString(h.Sum(nil))
|
|
return tarsumLayer.Sum(jsonRaw), checksumPayload, nil
|
|
}
|
|
|
|
// PushRegistryTag pushes a tag on the registry.
|
|
// Remote has the format '<user>/<repo>
|
|
func (r *Session) PushRegistryTag(remote reference.Named, revision, tag, registry string) error {
|
|
// "jsonify" the string
|
|
revision = "\"" + revision + "\""
|
|
path := fmt.Sprintf("repositories/%s/tags/%s", remote.Name(), tag)
|
|
|
|
req, err := http.NewRequest("PUT", registry+path, strings.NewReader(revision))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
req.Header.Add("Content-type", "application/json")
|
|
req.ContentLength = int64(len(revision))
|
|
res, err := r.client.Do(req)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
res.Body.Close()
|
|
if res.StatusCode != 200 && res.StatusCode != 201 {
|
|
return httputils.NewHTTPRequestError(fmt.Sprintf("Internal server error: %d trying to push tag %s on %s", res.StatusCode, tag, remote.Name()), res)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// PushImageJSONIndex uploads an image list to the repository
|
|
func (r *Session) PushImageJSONIndex(remote reference.Named, imgList []*ImgData, validate bool, regs []string) (*RepositoryData, error) {
|
|
cleanImgList := []*ImgData{}
|
|
if validate {
|
|
for _, elem := range imgList {
|
|
if elem.Checksum != "" {
|
|
cleanImgList = append(cleanImgList, elem)
|
|
}
|
|
}
|
|
} else {
|
|
cleanImgList = imgList
|
|
}
|
|
|
|
imgListJSON, err := json.Marshal(cleanImgList)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var suffix string
|
|
if validate {
|
|
suffix = "images"
|
|
}
|
|
u := fmt.Sprintf("%srepositories/%s/%s", r.indexEndpoint.VersionString(1), remote.Name(), suffix)
|
|
logrus.Debugf("[registry] PUT %s", u)
|
|
logrus.Debugf("Image list pushed to index:\n%s", imgListJSON)
|
|
headers := map[string][]string{
|
|
"Content-type": {"application/json"},
|
|
// this will set basic auth in r.client.Transport and send cached X-Docker-Token headers for all subsequent requests
|
|
"X-Docker-Token": {"true"},
|
|
}
|
|
if validate {
|
|
headers["X-Docker-Endpoints"] = regs
|
|
}
|
|
|
|
// Redirect if necessary
|
|
var res *http.Response
|
|
for {
|
|
if res, err = r.putImageRequest(u, headers, imgListJSON); err != nil {
|
|
return nil, err
|
|
}
|
|
if !shouldRedirect(res) {
|
|
break
|
|
}
|
|
res.Body.Close()
|
|
u = res.Header.Get("Location")
|
|
logrus.Debugf("Redirected to %s", u)
|
|
}
|
|
defer res.Body.Close()
|
|
|
|
if res.StatusCode == 401 {
|
|
return nil, errLoginRequired
|
|
}
|
|
|
|
var tokens, endpoints []string
|
|
if !validate {
|
|
if res.StatusCode != 200 && res.StatusCode != 201 {
|
|
errBody, err := ioutil.ReadAll(res.Body)
|
|
if err != nil {
|
|
logrus.Debugf("Error reading response body: %s", err)
|
|
}
|
|
return nil, httputils.NewHTTPRequestError(fmt.Sprintf("Error: Status %d trying to push repository %s: %q", res.StatusCode, remote.Name(), errBody), res)
|
|
}
|
|
tokens = res.Header["X-Docker-Token"]
|
|
logrus.Debugf("Auth token: %v", tokens)
|
|
|
|
if res.Header.Get("X-Docker-Endpoints") == "" {
|
|
return nil, fmt.Errorf("Index response didn't contain any endpoints")
|
|
}
|
|
endpoints, err = buildEndpointsList(res.Header["X-Docker-Endpoints"], r.indexEndpoint.VersionString(1))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
} else {
|
|
if res.StatusCode != 204 {
|
|
errBody, err := ioutil.ReadAll(res.Body)
|
|
if err != nil {
|
|
logrus.Debugf("Error reading response body: %s", err)
|
|
}
|
|
return nil, httputils.NewHTTPRequestError(fmt.Sprintf("Error: Status %d trying to push checksums %s: %q", res.StatusCode, remote.Name(), errBody), res)
|
|
}
|
|
}
|
|
|
|
return &RepositoryData{
|
|
Endpoints: endpoints,
|
|
}, nil
|
|
}
|
|
|
|
func (r *Session) putImageRequest(u string, headers map[string][]string, body []byte) (*http.Response, error) {
|
|
req, err := http.NewRequest("PUT", u, bytes.NewReader(body))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
req.ContentLength = int64(len(body))
|
|
for k, v := range headers {
|
|
req.Header[k] = v
|
|
}
|
|
response, err := r.client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return response, nil
|
|
}
|
|
|
|
func shouldRedirect(response *http.Response) bool {
|
|
return response.StatusCode >= 300 && response.StatusCode < 400
|
|
}
|
|
|
|
// SearchRepositories performs a search against the remote repository
|
|
func (r *Session) SearchRepositories(term string) (*SearchResults, error) {
|
|
logrus.Debugf("Index server: %s", r.indexEndpoint)
|
|
u := r.indexEndpoint.VersionString(1) + "search?q=" + url.QueryEscape(term)
|
|
|
|
req, err := http.NewRequest("GET", u, nil)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Error while getting from the server: %v", err)
|
|
}
|
|
// Have the AuthTransport send authentication, when logged in.
|
|
req.Header.Set("X-Docker-Token", "true")
|
|
res, err := r.client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer res.Body.Close()
|
|
if res.StatusCode != 200 {
|
|
return nil, httputils.NewHTTPRequestError(fmt.Sprintf("Unexpected status code %d", res.StatusCode), res)
|
|
}
|
|
result := new(SearchResults)
|
|
return result, json.NewDecoder(res.Body).Decode(result)
|
|
}
|
|
|
|
// GetAuthConfig returns the authentication settings for a session
|
|
// TODO(tiborvass): remove this once registry client v2 is vendored
|
|
func (r *Session) GetAuthConfig(withPasswd bool) *types.AuthConfig {
|
|
password := ""
|
|
if withPasswd {
|
|
password = r.authConfig.Password
|
|
}
|
|
return &types.AuthConfig{
|
|
Username: r.authConfig.Username,
|
|
Password: password,
|
|
Email: r.authConfig.Email,
|
|
}
|
|
}
|
|
|
|
func isTimeout(err error) bool {
|
|
type timeout interface {
|
|
Timeout() bool
|
|
}
|
|
e := err
|
|
switch urlErr := err.(type) {
|
|
case *url.Error:
|
|
e = urlErr.Err
|
|
}
|
|
t, ok := e.(timeout)
|
|
return ok && t.Timeout()
|
|
}
|