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registry: remove v1 code not related to searching 

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2020-10-28 13:46:00 +01:00
parent 0ba2d7c625
commit 3f7c62f6f6
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
3 changed files with 5 additions and 770 deletions
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8
registry/errors.go
View File

@ -7,14 +7,6 @@ import (
"github.com/docker/docker/errdefs"
)
type notFoundError string
func (e notFoundError) Error() string {
return string(e)
}
func (notFoundError) NotFound() {}
func translateV2AuthError(err error) error {
switch e := err.(type) {
case *url.Error:

204
registry/registry_test.go
View File

@ -1,10 +1,8 @@
package registry // import "github.com/docker/docker/registry"
import (
"fmt"
"net/http"
"net/http/httputil"
"net/url"
"os"
"strings"
"testing"
@ -17,15 +15,6 @@ import (
"gotest.tools/v3/skip"
)
var (
token = []string{"fake-token"}
)
const (
imageID = "42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d"
REPO = "foo42/bar"
)
func spawnTestRegistrySession(t *testing.T) *Session {
authConfig := &types.AuthConfig{}
endpoint, err := NewV1Endpoint(makeIndex("/v1/"), "", nil)
@ -50,7 +39,7 @@ func spawnTestRegistrySession(t *testing.T) *Session {
// Because we know that the client's transport is an `*authTransport` we simply cast it,
// in order to set the internal cached token to the fake token, and thus send that fake token
// upon every subsequent requests.
r.client.Transport.(*authTransport).token = token
r.client.Transport.(*authTransport).token = []string{"fake-token"}
return r
}
@ -148,153 +137,6 @@ func TestEndpoint(t *testing.T) {
}
}
func TestGetRemoteHistory(t *testing.T) {
r := spawnTestRegistrySession(t)
hist, err := r.GetRemoteHistory(imageID, makeURL("/v1/"))
if err != nil {
t.Fatal(err)
}
assertEqual(t, len(hist), 2, "Expected 2 images in history")
assertEqual(t, hist[0], imageID, "Expected "+imageID+"as first ancestry")
assertEqual(t, hist[1], "77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
"Unexpected second ancestry")
}
func TestLookupRemoteImage(t *testing.T) {
r := spawnTestRegistrySession(t)
err := r.LookupRemoteImage(imageID, makeURL("/v1/"))
assertEqual(t, err, nil, "Expected error of remote lookup to nil")
if err := r.LookupRemoteImage("abcdef", makeURL("/v1/")); err == nil {
t.Fatal("Expected error of remote lookup to not nil")
}
}
func TestGetRemoteImageJSON(t *testing.T) {
r := spawnTestRegistrySession(t)
json, size, err := r.GetRemoteImageJSON(imageID, makeURL("/v1/"))
if err != nil {
t.Fatal(err)
}
assertEqual(t, size, int64(154), "Expected size 154")
if len(json) == 0 {
t.Fatal("Expected non-empty json")
}
_, _, err = r.GetRemoteImageJSON("abcdef", makeURL("/v1/"))
if err == nil {
t.Fatal("Expected image not found error")
}
}
func TestGetRemoteImageLayer(t *testing.T) {
r := spawnTestRegistrySession(t)
data, err := r.GetRemoteImageLayer(imageID, makeURL("/v1/"), 0)
if err != nil {
t.Fatal(err)
}
if data == nil {
t.Fatal("Expected non-nil data result")
}
_, err = r.GetRemoteImageLayer("abcdef", makeURL("/v1/"), 0)
if err == nil {
t.Fatal("Expected image not found error")
}
}
func TestGetRemoteTag(t *testing.T) {
r := spawnTestRegistrySession(t)
repoRef, err := reference.ParseNormalizedNamed(REPO)
if err != nil {
t.Fatal(err)
}
tag, err := r.GetRemoteTag([]string{makeURL("/v1/")}, repoRef, "test")
if err != nil {
t.Fatal(err)
}
assertEqual(t, tag, imageID, "Expected tag test to map to "+imageID)
bazRef, err := reference.ParseNormalizedNamed("foo42/baz")
if err != nil {
t.Fatal(err)
}
_, err = r.GetRemoteTag([]string{makeURL("/v1/")}, bazRef, "foo")
if err != ErrRepoNotFound {
t.Fatal("Expected ErrRepoNotFound error when fetching tag for bogus repo")
}
}
func TestGetRemoteTags(t *testing.T) {
r := spawnTestRegistrySession(t)
repoRef, err := reference.ParseNormalizedNamed(REPO)
if err != nil {
t.Fatal(err)
}
tags, err := r.GetRemoteTags([]string{makeURL("/v1/")}, repoRef)
if err != nil {
t.Fatal(err)
}
assertEqual(t, len(tags), 2, "Expected two tags")
assertEqual(t, tags["latest"], imageID, "Expected tag latest to map to "+imageID)
assertEqual(t, tags["test"], imageID, "Expected tag test to map to "+imageID)
bazRef, err := reference.ParseNormalizedNamed("foo42/baz")
if err != nil {
t.Fatal(err)
}
_, err = r.GetRemoteTags([]string{makeURL("/v1/")}, bazRef)
if err != ErrRepoNotFound {
t.Fatal("Expected ErrRepoNotFound error when fetching tags for bogus repo")
}
}
func TestGetRepositoryData(t *testing.T) {
r := spawnTestRegistrySession(t)
parsedURL, err := url.Parse(makeURL("/v1/"))
if err != nil {
t.Fatal(err)
}
host := "http://" + parsedURL.Host + "/v1/"
repoRef, err := reference.ParseNormalizedNamed(REPO)
if err != nil {
t.Fatal(err)
}
data, err := r.GetRepositoryData(repoRef)
if err != nil {
t.Fatal(err)
}
assertEqual(t, len(data.ImgList), 2, "Expected 2 images in ImgList")
assertEqual(t, len(data.Endpoints), 2,
fmt.Sprintf("Expected 2 endpoints in Endpoints, found %d instead", len(data.Endpoints)))
assertEqual(t, data.Endpoints[0], host,
fmt.Sprintf("Expected first endpoint to be %s but found %s instead", host, data.Endpoints[0]))
assertEqual(t, data.Endpoints[1], "http://test.example.com/v1/",
fmt.Sprintf("Expected first endpoint to be http://test.example.com/v1/ but found %s instead", data.Endpoints[1]))
}
func TestPushImageJSONRegistry(t *testing.T) {
r := spawnTestRegistrySession(t)
imgData := &ImgData{
ID: "77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
Checksum: "sha256:1ac330d56e05eef6d438586545ceff7550d3bdcb6b19961f12c5ba714ee1bb37",
}
err := r.PushImageJSONRegistry(imgData, []byte{0x42, 0xdf, 0x0}, makeURL("/v1/"))
if err != nil {
t.Fatal(err)
}
}
func TestPushImageLayerRegistry(t *testing.T) {
r := spawnTestRegistrySession(t)
layer := strings.NewReader("")
_, _, err := r.PushImageLayerRegistry(imageID, layer, makeURL("/v1/"), []byte{})
if err != nil {
t.Fatal(err)
}
}
func TestParseRepositoryInfo(t *testing.T) {
type staticRepositoryInfo struct {
Index *registrytypes.IndexInfo
@ -701,50 +543,6 @@ func TestMirrorEndpointLookup(t *testing.T) {
}
}
func TestPushRegistryTag(t *testing.T) {
r := spawnTestRegistrySession(t)
repoRef, err := reference.ParseNormalizedNamed(REPO)
if err != nil {
t.Fatal(err)
}
err = r.PushRegistryTag(repoRef, imageID, "stable", makeURL("/v1/"))
if err != nil {
t.Fatal(err)
}
}
func TestPushImageJSONIndex(t *testing.T) {
r := spawnTestRegistrySession(t)
imgData := []*ImgData{
{
ID: "77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
Checksum: "sha256:1ac330d56e05eef6d438586545ceff7550d3bdcb6b19961f12c5ba714ee1bb37",
},
{
ID: "42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d",
Checksum: "sha256:bea7bf2e4bacd479344b737328db47b18880d09096e6674165533aa994f5e9f2",
},
}
repoRef, err := reference.ParseNormalizedNamed(REPO)
if err != nil {
t.Fatal(err)
}
repoData, err := r.PushImageJSONIndex(repoRef, imgData, false, nil)
if err != nil {
t.Fatal(err)
}
if repoData == nil {
t.Fatal("Expected RepositoryData object")
}
repoData, err = r.PushImageJSONIndex(repoRef, imgData, true, []string{r.indexEndpoint.String()})
if err != nil {
t.Fatal(err)
}
if repoData == nil {
t.Fatal("Expected RepositoryData object")
}
}
func TestSearchRepositories(t *testing.T) {
r := spawnTestRegistrySession(t)
results, err := r.SearchRepositories("fakequery", 25)

563
registry/session.go
View File

@ -1,43 +1,26 @@
package registry // import "github.com/docker/docker/registry"
import (
"bytes"
"crypto/sha256"
// this is required for some certificates
_ "crypto/sha512"
"encoding/hex"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/cookiejar"
"net/url"
"strconv"
"strings"
"sync"
"github.com/docker/distribution/reference"
"github.com/docker/distribution/registry/api/errcode"
"github.com/docker/docker/api/types"
registrytypes "github.com/docker/docker/api/types/registry"
"github.com/docker/docker/errdefs"
"github.com/docker/docker/pkg/ioutils"
"github.com/docker/docker/pkg/jsonmessage"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/docker/pkg/tarsum"
"github.com/docker/docker/registry/resumable"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
var (
// ErrRepoNotFound is returned if the repository didn't exist on the
// remote side
ErrRepoNotFound notFoundError = "Repository not found"
)
// A Session is used to communicate with a V1 registry
type Session struct {
indexEndpoint *V1Endpoint
@ -214,527 +197,6 @@ func NewSession(client *http.Client, authConfig *types.AuthConfig, endpoint *V1E
return newSession(client, authConfig, endpoint), nil
}
// ID returns this registry session's ID.
func (r *Session) ID() string {
return r.id
}
// GetRemoteHistory retrieves the history of a given image from the registry.
// It returns a list of the parent's JSON files (including the requested image).
func (r *Session) GetRemoteHistory(imgID, registry string) ([]string, error) {
res, err := r.client.Get(registry + "images/" + imgID + "/ancestry")
if err != nil {
return nil, err
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK {
if res.StatusCode == http.StatusUnauthorized {
return nil, errcode.ErrorCodeUnauthorized.WithArgs()
}
return nil, newJSONError(fmt.Sprintf("Server error: %d trying to fetch remote history for %s", res.StatusCode, imgID), res)
}
var history []string
if err := json.NewDecoder(res.Body).Decode(&history); err != nil {
return nil, fmt.Errorf("Error while reading the http response: %v", err)
}
logrus.Debugf("Ancestry: %v", history)
return history, nil
}
// LookupRemoteImage checks if an image exists in the registry
func (r *Session) LookupRemoteImage(imgID, registry string) error {
res, err := r.client.Get(registry + "images/" + imgID + "/json")
if err != nil {
return err
}
res.Body.Close()
if res.StatusCode != http.StatusOK {
return newJSONError(fmt.Sprintf("HTTP code %d", res.StatusCode), res)
}
return nil
}
// GetRemoteImageJSON retrieves an image's JSON metadata from the registry.
func (r *Session) GetRemoteImageJSON(imgID, registry string) ([]byte, int64, error) {
res, err := r.client.Get(registry + "images/" + imgID + "/json")
if err != nil {
return nil, -1, fmt.Errorf("Failed to download json: %s", err)
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK {
return nil, -1, newJSONError(fmt.Sprintf("HTTP code %d", res.StatusCode), res)
}
// if the size header is not present, then set it to '-1'
imageSize := int64(-1)
if hdr := res.Header.Get("X-Docker-Size"); hdr != "" {
imageSize, err = strconv.ParseInt(hdr, 10, 64)
if err != nil {
return nil, -1, err
}
}
jsonString, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, -1, fmt.Errorf("Failed to parse downloaded json: %v (%s)", err, jsonString)
}
return jsonString, imageSize, nil
}
// GetRemoteImageLayer retrieves an image layer from the registry
func (r *Session) GetRemoteImageLayer(imgID, registry string, imgSize int64) (io.ReadCloser, error) {
var (
statusCode = 0
res *http.Response
err error
imageURL = fmt.Sprintf("%simages/%s/layer", registry, imgID)
)
req, err := http.NewRequest(http.MethodGet, imageURL, nil)
if err != nil {
return nil, fmt.Errorf("Error while getting from the server: %v", err)
}
res, err = r.client.Do(req)
if err != nil {
logrus.Debugf("Error contacting registry %s: %v", registry, err)
// the only case err != nil && res != nil is https://golang.org/src/net/http/client.go#L515
if res != nil {
if res.Body != nil {
res.Body.Close()
}
statusCode = res.StatusCode
}
return nil, fmt.Errorf("Server error: Status %d while fetching image layer (%s)",
statusCode, imgID)
}
if res.StatusCode != http.StatusOK {
res.Body.Close()
return nil, fmt.Errorf("Server error: Status %d while fetching image layer (%s)",
res.StatusCode, imgID)
}
if res.Header.Get("Accept-Ranges") == "bytes" && imgSize > 0 {
logrus.Debug("server supports resume")
return resumable.NewRequestReaderWithInitialResponse(r.client, req, 5, imgSize, res), nil
}
logrus.Debug("server doesn't support resume")
return res.Body, nil
}
// GetRemoteTag retrieves the tag named in the askedTag argument from the given
// repository. It queries each of the registries supplied in the registries
// argument, and returns data from the first one that answers the query
// successfully.
func (r *Session) GetRemoteTag(registries []string, repositoryRef reference.Named, askedTag string) (string, error) {
repository := reference.Path(repositoryRef)
if strings.Count(repository, "/") == 0 {
// This will be removed once the registry supports auto-resolution on
// the "library" namespace
repository = "library/" + repository
}
for _, host := range registries {
endpoint := fmt.Sprintf("%srepositories/%s/tags/%s", host, repository, askedTag)
res, err := r.client.Get(endpoint)
if err != nil {
return "", err
}
logrus.Debugf("Got status code %d from %s", res.StatusCode, endpoint)
defer res.Body.Close()
if res.StatusCode == 404 {
return "", ErrRepoNotFound
}
if res.StatusCode != http.StatusOK {
continue
}
var tagID string
if err := json.NewDecoder(res.Body).Decode(&tagID); err != nil {
return "", err
}
return tagID, nil
}
return "", fmt.Errorf("Could not reach any registry endpoint")
}
// GetRemoteTags retrieves all tags from the given repository. It queries each
// of the registries supplied in the registries argument, and returns data from
// the first one that answers the query successfully. It returns a map with
// tag names as the keys and image IDs as the values.
func (r *Session) GetRemoteTags(registries []string, repositoryRef reference.Named) (map[string]string, error) {
repository := reference.Path(repositoryRef)
if strings.Count(repository, "/") == 0 {
// This will be removed once the registry supports auto-resolution on
// the "library" namespace
repository = "library/" + repository
}
for _, host := range registries {
endpoint := fmt.Sprintf("%srepositories/%s/tags", host, repository)
res, err := r.client.Get(endpoint)
if err != nil {
return nil, err
}
logrus.Debugf("Got status code %d from %s", res.StatusCode, endpoint)
defer res.Body.Close()
if res.StatusCode == 404 {
return nil, ErrRepoNotFound
}
if res.StatusCode != http.StatusOK {
continue
}
result := make(map[string]string)
if err := json.NewDecoder(res.Body).Decode(&result); err != nil {
return nil, err
}
return result, nil
}
return nil, fmt.Errorf("Could not reach any registry endpoint")
}
func buildEndpointsList(headers []string, indexEp string) ([]string, error) {
var endpoints []string
parsedURL, err := url.Parse(indexEp)
if err != nil {
return nil, err
}
var urlScheme = parsedURL.Scheme
// The registry's URL scheme has to match the Index'
for _, ep := range headers {
epList := strings.Split(ep, ",")
for _, epListElement := range epList {
endpoints = append(
endpoints,
fmt.Sprintf("%s://%s/v1/", urlScheme, strings.TrimSpace(epListElement)))
}
}
return endpoints, nil
}
// GetRepositoryData returns lists of images and endpoints for the repository
func (r *Session) GetRepositoryData(name reference.Named) (*RepositoryData, error) {
repositoryTarget := fmt.Sprintf("%srepositories/%s/images", r.indexEndpoint.String(), reference.Path(name))
logrus.Debugf("[registry] Calling GET %s", repositoryTarget)
req, err := http.NewRequest(http.MethodGet, repositoryTarget, nil)
if err != nil {
return nil, err
}
// this will set basic auth in r.client.Transport and send cached X-Docker-Token headers for all subsequent requests
req.Header.Set("X-Docker-Token", "true")
res, err := r.client.Do(req)
if err != nil {
// check if the error is because of i/o timeout
// and return a non-obtuse error message for users
// "Get https://index.docker.io/v1/repositories/library/busybox/images: i/o timeout"
// was a top search on the docker user forum
if isTimeout(err) {
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)
}
return nil, fmt.Errorf("Error while pulling image: %v", err)
}
defer res.Body.Close()
if res.StatusCode == http.StatusUnauthorized {
return nil, errcode.ErrorCodeUnauthorized.WithArgs()
}
// TODO: Right now we're ignoring checksums in the response body.
// In the future, we need to use them to check image validity.
if res.StatusCode == 404 {
return nil, newJSONError(fmt.Sprintf("HTTP code: %d", res.StatusCode), res)
} else if res.StatusCode != http.StatusOK {
errBody, err := ioutil.ReadAll(res.Body)
if err != nil {
logrus.Debugf("Error reading response body: %s", err)
}
return nil, newJSONError(fmt.Sprintf("Error: Status %d trying to pull repository %s: %q", res.StatusCode, reference.Path(name), errBody), res)
}
var endpoints []string
if res.Header.Get("X-Docker-Endpoints") != "" {
endpoints, err = buildEndpointsList(res.Header["X-Docker-Endpoints"], r.indexEndpoint.String())
if err != nil {
return nil, err
}
} else {
// Assume the endpoint is on the same host
endpoints = append(endpoints, fmt.Sprintf("%s://%s/v1/", r.indexEndpoint.URL.Scheme, req.URL.Host))
}
remoteChecksums := []*ImgData{}
if err := json.NewDecoder(res.Body).Decode(&remoteChecksums); err != nil {
return nil, err
}
// Forge a better object from the retrieved data
imgsData := make(map[string]*ImgData, len(remoteChecksums))
for _, elem := range remoteChecksums {
imgsData[elem.ID] = elem
}
return &RepositoryData{
ImgList: imgsData,
Endpoints: endpoints,
}, nil
}
// PushImageChecksumRegistry uploads checksums for an image
func (r *Session) PushImageChecksumRegistry(imgData *ImgData, registry string) error {
u := registry + "images/" + imgData.ID + "/checksum"
logrus.Debugf("[registry] Calling PUT %s", u)
req, err := http.NewRequest(http.MethodPut, u, nil)
if err != nil {
return err
}
req.Header.Set("X-Docker-Checksum", imgData.Checksum)
req.Header.Set("X-Docker-Checksum-Payload", imgData.ChecksumPayload)
res, err := r.client.Do(req)
if err != nil {
return fmt.Errorf("Failed to upload metadata: %v", err)
}
defer res.Body.Close()
if len(res.Cookies()) > 0 {
r.client.Jar.SetCookies(req.URL, res.Cookies())
}
if res.StatusCode != http.StatusOK {
errBody, err := ioutil.ReadAll(res.Body)
if err != nil {
return fmt.Errorf("HTTP code %d while uploading metadata and error when trying to parse response body: %s", res.StatusCode, err)
}
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 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(http.MethodPut, 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 == http.StatusUnauthorized && strings.HasPrefix(registry, "http://") {
return newJSONError("HTTP code 401, Docker will not send auth headers over HTTP.", res)
}
if res.StatusCode != http.StatusOK {
errBody, err := ioutil.ReadAll(res.Body)
if err != nil {
return newJSONError(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 newJSONError(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(http.MethodPut, 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 != http.StatusOK {
errBody, err := ioutil.ReadAll(res.Body)
if err != nil {
return "", "", newJSONError(fmt.Sprintf("HTTP code %d while uploading metadata and error when trying to parse response body: %s", res.StatusCode, err), res)
}
return "", "", newJSONError(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", reference.Path(remote), tag)
req, err := http.NewRequest(http.MethodPut, 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 != http.StatusOK && res.StatusCode != http.StatusCreated {
return newJSONError(fmt.Sprintf("Internal server error: %d trying to push tag %s on %s", res.StatusCode, tag, reference.Path(remote)), 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.String(), reference.Path(remote), 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 == http.StatusUnauthorized {
return nil, errcode.ErrorCodeUnauthorized.WithArgs()
}
var tokens, endpoints []string
if !validate {
if res.StatusCode != http.StatusOK && res.StatusCode != http.StatusCreated {
errBody, err := ioutil.ReadAll(res.Body)
if err != nil {
logrus.Debugf("Error reading response body: %s", err)
}
return nil, newJSONError(fmt.Sprintf("Error: Status %d trying to push repository %s: %q", res.StatusCode, reference.Path(remote), 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.String())
if err != nil {
return nil, err
}
} else {
if res.StatusCode != http.StatusNoContent {
errBody, err := ioutil.ReadAll(res.Body)
if err != nil {
logrus.Debugf("Error reading response body: %s", err)
}
return nil, newJSONError(fmt.Sprintf("Error: Status %d trying to push checksums %s: %q", res.StatusCode, reference.Path(remote), 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(http.MethodPut, 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, limit int) (*registrytypes.SearchResults, error) {
if limit < 1 || limit > 100 {
@ -755,28 +217,11 @@ func (r *Session) SearchRepositories(term string, limit int) (*registrytypes.Sea
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK {
return nil, newJSONError(fmt.Sprintf("Unexpected status code %d", res.StatusCode), res)
return nil, &jsonmessage.JSONError{
Message: fmt.Sprintf("Unexpected status code %d", res.StatusCode),
Code: res.StatusCode,
}
}
result := new(registrytypes.SearchResults)
return result, errors.Wrap(json.NewDecoder(res.Body).Decode(result), "error decoding registry search results")
}
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()
}
func newJSONError(msg string, res *http.Response) error {
return &jsonmessage.JSONError{
Message: msg,
Code: res.StatusCode,
}
}