forked from TrueCloudLab/distribution
Use vendored v2 registry api
Update registry package to use the v2 registry api from distribution. Update interfaces to directly take in digests. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
This commit is contained in:
Derek McGowan
parent
5fa2d814f8
commit
67e5c940c4
11 changed files with 13 additions and 1090 deletions
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@ -11,8 +11,8 @@ import (
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"strings"
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"github.com/Sirupsen/logrus"
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"github.com/docker/distribution/registry/api/v2"
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"github.com/docker/docker/pkg/requestdecorator"
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"github.com/docker/docker/registry/v2"
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)
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// for mocking in unit tests
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@ -11,7 +11,7 @@ import (
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"github.com/Sirupsen/logrus"
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"github.com/docker/distribution/digest"
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"github.com/docker/docker/registry/v2"
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"github.com/docker/distribution/registry/api/v2"
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"github.com/docker/docker/utils"
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)
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@ -109,8 +109,8 @@ func (r *Session) GetV2ImageManifest(ep *Endpoint, imageName, tagName string, au
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// - Succeeded to head image blob (already exists)
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// - Failed with no error (continue to Push the Blob)
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// - Failed with error
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func (r *Session) HeadV2ImageBlob(ep *Endpoint, imageName, sumType, sum string, auth *RequestAuthorization) (bool, error) {
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routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, sumType+":"+sum)
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func (r *Session) HeadV2ImageBlob(ep *Endpoint, imageName string, dgst digest.Digest, auth *RequestAuthorization) (bool, error) {
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routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, dgst)
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if err != nil {
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return false, err
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}
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@ -141,11 +141,11 @@ func (r *Session) HeadV2ImageBlob(ep *Endpoint, imageName, sumType, sum string,
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return false, nil
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}
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return false, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying head request for %s - %s:%s", res.StatusCode, imageName, sumType, sum), res)
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return false, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying head request for %s - %s", res.StatusCode, imageName, dgst), res)
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}
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func (r *Session) GetV2ImageBlob(ep *Endpoint, imageName, sumType, sum string, blobWrtr io.Writer, auth *RequestAuthorization) error {
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routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, sumType+":"+sum)
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func (r *Session) GetV2ImageBlob(ep *Endpoint, imageName string, dgst digest.Digest, blobWrtr io.Writer, auth *RequestAuthorization) error {
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routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, dgst)
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if err != nil {
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return err
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}
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@ -175,8 +175,8 @@ func (r *Session) GetV2ImageBlob(ep *Endpoint, imageName, sumType, sum string, b
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return err
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}
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func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName, sumType, sum string, auth *RequestAuthorization) (io.ReadCloser, int64, error) {
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routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, sumType+":"+sum)
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func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName string, dgst digest.Digest, auth *RequestAuthorization) (io.ReadCloser, int64, error) {
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routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, dgst)
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if err != nil {
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return nil, 0, err
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}
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@ -198,7 +198,7 @@ func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName, sumType, sum str
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if res.StatusCode == 401 {
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return nil, 0, errLoginRequired
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}
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return nil, 0, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to pull %s blob - %s:%s", res.StatusCode, imageName, sumType, sum), res)
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return nil, 0, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to pull %s blob - %s", res.StatusCode, imageName, dgst), res)
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}
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lenStr := res.Header.Get("Content-Length")
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l, err := strconv.ParseInt(lenStr, 10, 64)
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@ -212,7 +212,7 @@ func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName, sumType, sum str
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// Push the image to the server for storage.
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// 'layer' is an uncompressed reader of the blob to be pushed.
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// The server will generate it's own checksum calculation.
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func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName, sumType, sumStr string, blobRdr io.Reader, auth *RequestAuthorization) error {
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func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName string, dgst digest.Digest, blobRdr io.Reader, auth *RequestAuthorization) error {
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location, err := r.initiateBlobUpload(ep, imageName, auth)
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if err != nil {
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return err
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@ -225,7 +225,7 @@ func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName, sumType, sumStr string
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return err
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}
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queryParams := req.URL.Query()
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queryParams.Add("digest", sumType+":"+sumStr)
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queryParams.Add("digest", dgst.String())
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req.URL.RawQuery = queryParams.Encode()
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if err := auth.Authorize(req); err != nil {
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return err
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@ -245,7 +245,7 @@ func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName, sumType, sumStr string
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return err
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}
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logrus.Debugf("Unexpected response from server: %q %#v", errBody, res.Header)
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return utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to push %s blob - %s:%s", res.StatusCode, imageName, sumType, sumStr), res)
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return utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to push %s blob - %s", res.StatusCode, imageName, dgst), res)
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}
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return nil
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@ -1,144 +0,0 @@
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package v2
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import "net/http"
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// TODO(stevvooe): Add route descriptors for each named route, along with
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// accepted methods, parameters, returned status codes and error codes.
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// ErrorDescriptor provides relevant information about a given error code.
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type ErrorDescriptor struct {
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// Code is the error code that this descriptor describes.
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Code ErrorCode
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// Value provides a unique, string key, often captilized with
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// underscores, to identify the error code. This value is used as the
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// keyed value when serializing api errors.
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Value string
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// Message is a short, human readable decription of the error condition
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// included in API responses.
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Message string
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// Description provides a complete account of the errors purpose, suitable
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// for use in documentation.
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Description string
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// HTTPStatusCodes provides a list of status under which this error
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// condition may arise. If it is empty, the error condition may be seen
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// for any status code.
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HTTPStatusCodes []int
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}
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// ErrorDescriptors provides a list of HTTP API Error codes that may be
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// encountered when interacting with the registry API.
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var ErrorDescriptors = []ErrorDescriptor{
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{
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Code: ErrorCodeUnknown,
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Value: "UNKNOWN",
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Message: "unknown error",
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Description: `Generic error returned when the error does not have an
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API classification.`,
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},
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{
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Code: ErrorCodeDigestInvalid,
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Value: "DIGEST_INVALID",
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Message: "provided digest did not match uploaded content",
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Description: `When a blob is uploaded, the registry will check that
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the content matches the digest provided by the client. The error may
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include a detail structure with the key "digest", including the
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invalid digest string. This error may also be returned when a manifest
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includes an invalid layer digest.`,
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HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound},
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},
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{
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Code: ErrorCodeSizeInvalid,
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Value: "SIZE_INVALID",
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Message: "provided length did not match content length",
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Description: `When a layer is uploaded, the provided size will be
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checked against the uploaded content. If they do not match, this error
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will be returned.`,
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HTTPStatusCodes: []int{http.StatusBadRequest},
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},
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{
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Code: ErrorCodeNameInvalid,
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Value: "NAME_INVALID",
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Message: "manifest name did not match URI",
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Description: `During a manifest upload, if the name in the manifest
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does not match the uri name, this error will be returned.`,
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HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound},
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},
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{
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Code: ErrorCodeTagInvalid,
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Value: "TAG_INVALID",
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Message: "manifest tag did not match URI",
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Description: `During a manifest upload, if the tag in the manifest
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does not match the uri tag, this error will be returned.`,
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HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound},
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},
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{
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Code: ErrorCodeNameUnknown,
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Value: "NAME_UNKNOWN",
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Message: "repository name not known to registry",
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Description: `This is returned if the name used during an operation is
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unknown to the registry.`,
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HTTPStatusCodes: []int{http.StatusNotFound},
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},
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{
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Code: ErrorCodeManifestUnknown,
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Value: "MANIFEST_UNKNOWN",
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Message: "manifest unknown",
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Description: `This error is returned when the manifest, identified by
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name and tag is unknown to the repository.`,
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HTTPStatusCodes: []int{http.StatusNotFound},
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},
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{
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Code: ErrorCodeManifestInvalid,
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Value: "MANIFEST_INVALID",
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Message: "manifest invalid",
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Description: `During upload, manifests undergo several checks ensuring
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validity. If those checks fail, this error may be returned, unless a
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more specific error is included. The detail will contain information
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the failed validation.`,
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HTTPStatusCodes: []int{http.StatusBadRequest},
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},
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{
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Code: ErrorCodeManifestUnverified,
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Value: "MANIFEST_UNVERIFIED",
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Message: "manifest failed signature verification",
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Description: `During manifest upload, if the manifest fails signature
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verification, this error will be returned.`,
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HTTPStatusCodes: []int{http.StatusBadRequest},
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},
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{
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Code: ErrorCodeBlobUnknown,
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Value: "BLOB_UNKNOWN",
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Message: "blob unknown to registry",
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Description: `This error may be returned when a blob is unknown to the
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registry in a specified repository. This can be returned with a
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standard get or if a manifest references an unknown layer during
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upload.`,
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HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound},
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},
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{
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Code: ErrorCodeBlobUploadUnknown,
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Value: "BLOB_UPLOAD_UNKNOWN",
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Message: "blob upload unknown to registry",
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Description: `If a blob upload has been cancelled or was never
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started, this error code may be returned.`,
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HTTPStatusCodes: []int{http.StatusNotFound},
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},
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}
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var errorCodeToDescriptors map[ErrorCode]ErrorDescriptor
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var idToDescriptors map[string]ErrorDescriptor
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func init() {
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errorCodeToDescriptors = make(map[ErrorCode]ErrorDescriptor, len(ErrorDescriptors))
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idToDescriptors = make(map[string]ErrorDescriptor, len(ErrorDescriptors))
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for _, descriptor := range ErrorDescriptors {
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errorCodeToDescriptors[descriptor.Code] = descriptor
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idToDescriptors[descriptor.Value] = descriptor
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}
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}
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@ -1,13 +0,0 @@
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// Package v2 describes routes, urls and the error codes used in the Docker
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// Registry JSON HTTP API V2. In addition to declarations, descriptors are
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// provided for routes and error codes that can be used for implementation and
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// automatically generating documentation.
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//
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// Definitions here are considered to be locked down for the V2 registry api.
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// Any changes must be considered carefully and should not proceed without a
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// change proposal.
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//
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// Currently, while the HTTP API definitions are considered stable, the Go API
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// exports are considered unstable. Go API consumers should take care when
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// relying on these definitions until this message is deleted.
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package v2
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@ -1,185 +0,0 @@
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package v2
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import (
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"fmt"
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"strings"
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)
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// ErrorCode represents the error type. The errors are serialized via strings
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// and the integer format may change and should *never* be exported.
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type ErrorCode int
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const (
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// ErrorCodeUnknown is a catch-all for errors not defined below.
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ErrorCodeUnknown ErrorCode = iota
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// ErrorCodeDigestInvalid is returned when uploading a blob if the
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// provided digest does not match the blob contents.
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ErrorCodeDigestInvalid
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// ErrorCodeSizeInvalid is returned when uploading a blob if the provided
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// size does not match the content length.
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ErrorCodeSizeInvalid
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// ErrorCodeNameInvalid is returned when the name in the manifest does not
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// match the provided name.
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ErrorCodeNameInvalid
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// ErrorCodeTagInvalid is returned when the tag in the manifest does not
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// match the provided tag.
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ErrorCodeTagInvalid
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// ErrorCodeNameUnknown when the repository name is not known.
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ErrorCodeNameUnknown
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// ErrorCodeManifestUnknown returned when image manifest is unknown.
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ErrorCodeManifestUnknown
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// ErrorCodeManifestInvalid returned when an image manifest is invalid,
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// typically during a PUT operation. This error encompasses all errors
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// encountered during manifest validation that aren't signature errors.
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ErrorCodeManifestInvalid
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// ErrorCodeManifestUnverified is returned when the manifest fails
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// signature verfication.
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ErrorCodeManifestUnverified
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// ErrorCodeBlobUnknown is returned when a blob is unknown to the
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// registry. This can happen when the manifest references a nonexistent
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// layer or the result is not found by a blob fetch.
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ErrorCodeBlobUnknown
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// ErrorCodeBlobUploadUnknown is returned when an upload is unknown.
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ErrorCodeBlobUploadUnknown
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)
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// ParseErrorCode attempts to parse the error code string, returning
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// ErrorCodeUnknown if the error is not known.
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func ParseErrorCode(s string) ErrorCode {
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desc, ok := idToDescriptors[s]
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if !ok {
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return ErrorCodeUnknown
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}
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return desc.Code
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}
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// Descriptor returns the descriptor for the error code.
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func (ec ErrorCode) Descriptor() ErrorDescriptor {
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d, ok := errorCodeToDescriptors[ec]
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if !ok {
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return ErrorCodeUnknown.Descriptor()
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}
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return d
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}
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// String returns the canonical identifier for this error code.
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func (ec ErrorCode) String() string {
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return ec.Descriptor().Value
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}
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// Message returned the human-readable error message for this error code.
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func (ec ErrorCode) Message() string {
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return ec.Descriptor().Message
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}
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// MarshalText encodes the receiver into UTF-8-encoded text and returns the
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// result.
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func (ec ErrorCode) MarshalText() (text []byte, err error) {
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return []byte(ec.String()), nil
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}
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// UnmarshalText decodes the form generated by MarshalText.
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func (ec *ErrorCode) UnmarshalText(text []byte) error {
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desc, ok := idToDescriptors[string(text)]
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if !ok {
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desc = ErrorCodeUnknown.Descriptor()
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}
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*ec = desc.Code
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return nil
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}
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// Error provides a wrapper around ErrorCode with extra Details provided.
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type Error struct {
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Code ErrorCode `json:"code"`
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Message string `json:"message,omitempty"`
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Detail interface{} `json:"detail,omitempty"`
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}
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// Error returns a human readable representation of the error.
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func (e Error) Error() string {
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return fmt.Sprintf("%s: %s",
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strings.ToLower(strings.Replace(e.Code.String(), "_", " ", -1)),
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e.Message)
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}
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// Errors provides the envelope for multiple errors and a few sugar methods
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// for use within the application.
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type Errors struct {
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Errors []Error `json:"errors,omitempty"`
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}
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// Push pushes an error on to the error stack, with the optional detail
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// argument. It is a programming error (ie panic) to push more than one
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// detail at a time.
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func (errs *Errors) Push(code ErrorCode, details ...interface{}) {
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if len(details) > 1 {
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panic("please specify zero or one detail items for this error")
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}
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var detail interface{}
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if len(details) > 0 {
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detail = details[0]
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}
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if err, ok := detail.(error); ok {
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detail = err.Error()
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}
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errs.PushErr(Error{
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Code: code,
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Message: code.Message(),
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Detail: detail,
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})
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}
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// PushErr pushes an error interface onto the error stack.
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func (errs *Errors) PushErr(err error) {
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switch err.(type) {
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case Error:
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errs.Errors = append(errs.Errors, err.(Error))
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default:
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errs.Errors = append(errs.Errors, Error{Message: err.Error()})
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}
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}
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func (errs *Errors) Error() string {
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switch errs.Len() {
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case 0:
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return "<nil>"
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case 1:
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return errs.Errors[0].Error()
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default:
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msg := "errors:\n"
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for _, err := range errs.Errors {
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msg += err.Error() + "\n"
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}
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return msg
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}
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}
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|
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// Clear clears the errors.
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func (errs *Errors) Clear() {
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errs.Errors = errs.Errors[:0]
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}
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|
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// Len returns the current number of errors.
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func (errs *Errors) Len() int {
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return len(errs.Errors)
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}
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|
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@ -1,163 +0,0 @@
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package v2
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import (
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"encoding/json"
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"reflect"
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"testing"
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)
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|
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// TestErrorCodes ensures that error code format, mappings and
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// marshaling/unmarshaling. round trips are stable.
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func TestErrorCodes(t *testing.T) {
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for _, desc := range ErrorDescriptors {
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if desc.Code.String() != desc.Value {
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t.Fatalf("error code string incorrect: %q != %q", desc.Code.String(), desc.Value)
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}
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if desc.Code.Message() != desc.Message {
|
||||
t.Fatalf("incorrect message for error code %v: %q != %q", desc.Code, desc.Code.Message(), desc.Message)
|
||||
}
|
||||
|
||||
// Serialize the error code using the json library to ensure that we
|
||||
// get a string and it works round trip.
|
||||
p, err := json.Marshal(desc.Code)
|
||||
|
||||
if err != nil {
|
||||
t.Fatalf("error marshaling error code %v: %v", desc.Code, err)
|
||||
}
|
||||
|
||||
if len(p) <= 0 {
|
||||
t.Fatalf("expected content in marshaled before for error code %v", desc.Code)
|
||||
}
|
||||
|
||||
// First, unmarshal to interface and ensure we have a string.
|
||||
var ecUnspecified interface{}
|
||||
if err := json.Unmarshal(p, &ecUnspecified); err != nil {
|
||||
t.Fatalf("error unmarshaling error code %v: %v", desc.Code, err)
|
||||
}
|
||||
|
||||
if _, ok := ecUnspecified.(string); !ok {
|
||||
t.Fatalf("expected a string for error code %v on unmarshal got a %T", desc.Code, ecUnspecified)
|
||||
}
|
||||
|
||||
// Now, unmarshal with the error code type and ensure they are equal
|
||||
var ecUnmarshaled ErrorCode
|
||||
if err := json.Unmarshal(p, &ecUnmarshaled); err != nil {
|
||||
t.Fatalf("error unmarshaling error code %v: %v", desc.Code, err)
|
||||
}
|
||||
|
||||
if ecUnmarshaled != desc.Code {
|
||||
t.Fatalf("unexpected error code during error code marshal/unmarshal: %v != %v", ecUnmarshaled, desc.Code)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TestErrorsManagement does a quick check of the Errors type to ensure that
|
||||
// members are properly pushed and marshaled.
|
||||
func TestErrorsManagement(t *testing.T) {
|
||||
var errs Errors
|
||||
|
||||
errs.Push(ErrorCodeDigestInvalid)
|
||||
errs.Push(ErrorCodeBlobUnknown,
|
||||
map[string]string{"digest": "sometestblobsumdoesntmatter"})
|
||||
|
||||
p, err := json.Marshal(errs)
|
||||
|
||||
if err != nil {
|
||||
t.Fatalf("error marashaling errors: %v", err)
|
||||
}
|
||||
|
||||
expectedJSON := "{\"errors\":[{\"code\":\"DIGEST_INVALID\",\"message\":\"provided digest did not match uploaded content\"},{\"code\":\"BLOB_UNKNOWN\",\"message\":\"blob unknown to registry\",\"detail\":{\"digest\":\"sometestblobsumdoesntmatter\"}}]}"
|
||||
|
||||
if string(p) != expectedJSON {
|
||||
t.Fatalf("unexpected json: %q != %q", string(p), expectedJSON)
|
||||
}
|
||||
|
||||
errs.Clear()
|
||||
errs.Push(ErrorCodeUnknown)
|
||||
expectedJSON = "{\"errors\":[{\"code\":\"UNKNOWN\",\"message\":\"unknown error\"}]}"
|
||||
p, err = json.Marshal(errs)
|
||||
|
||||
if err != nil {
|
||||
t.Fatalf("error marashaling errors: %v", err)
|
||||
}
|
||||
|
||||
if string(p) != expectedJSON {
|
||||
t.Fatalf("unexpected json: %q != %q", string(p), expectedJSON)
|
||||
}
|
||||
}
|
||||
|
||||
// TestMarshalUnmarshal ensures that api errors can round trip through json
|
||||
// without losing information.
|
||||
func TestMarshalUnmarshal(t *testing.T) {
|
||||
|
||||
var errors Errors
|
||||
|
||||
for _, testcase := range []struct {
|
||||
description string
|
||||
err Error
|
||||
}{
|
||||
{
|
||||
description: "unknown error",
|
||||
err: Error{
|
||||
|
||||
Code: ErrorCodeUnknown,
|
||||
Message: ErrorCodeUnknown.Descriptor().Message,
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "unknown manifest",
|
||||
err: Error{
|
||||
Code: ErrorCodeManifestUnknown,
|
||||
Message: ErrorCodeManifestUnknown.Descriptor().Message,
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "unknown manifest",
|
||||
err: Error{
|
||||
Code: ErrorCodeBlobUnknown,
|
||||
Message: ErrorCodeBlobUnknown.Descriptor().Message,
|
||||
Detail: map[string]interface{}{"digest": "asdfqwerqwerqwerqwer"},
|
||||
},
|
||||
},
|
||||
} {
|
||||
fatalf := func(format string, args ...interface{}) {
|
||||
t.Fatalf(testcase.description+": "+format, args...)
|
||||
}
|
||||
|
||||
unexpectedErr := func(err error) {
|
||||
fatalf("unexpected error: %v", err)
|
||||
}
|
||||
|
||||
p, err := json.Marshal(testcase.err)
|
||||
if err != nil {
|
||||
unexpectedErr(err)
|
||||
}
|
||||
|
||||
var unmarshaled Error
|
||||
if err := json.Unmarshal(p, &unmarshaled); err != nil {
|
||||
unexpectedErr(err)
|
||||
}
|
||||
|
||||
if !reflect.DeepEqual(unmarshaled, testcase.err) {
|
||||
fatalf("errors not equal after round trip: %#v != %#v", unmarshaled, testcase.err)
|
||||
}
|
||||
|
||||
// Roll everything up into an error response envelope.
|
||||
errors.PushErr(testcase.err)
|
||||
}
|
||||
|
||||
p, err := json.Marshal(errors)
|
||||
if err != nil {
|
||||
t.Fatalf("unexpected error marshaling error envelope: %v", err)
|
||||
}
|
||||
|
||||
var unmarshaled Errors
|
||||
if err := json.Unmarshal(p, &unmarshaled); err != nil {
|
||||
t.Fatalf("unexpected error unmarshaling error envelope: %v", err)
|
||||
}
|
||||
|
||||
if !reflect.DeepEqual(unmarshaled, errors) {
|
||||
t.Fatalf("errors not equal after round trip: %#v != %#v", unmarshaled, errors)
|
||||
}
|
||||
}
|
||||
|
|
@ -1,22 +0,0 @@
|
|||
package v2
|
||||
|
||||
import "regexp"
|
||||
|
||||
// This file defines regular expressions for use in route definition. These
|
||||
// are also defined in the registry code base. Until they are in a common,
|
||||
// shared location, and exported, they must be repeated here.
|
||||
|
||||
// RepositoryNameComponentRegexp restricts registtry path components names to
|
||||
// start with at least two letters or numbers, with following parts able to
|
||||
// separated by one period, dash or underscore.
|
||||
var RepositoryNameComponentRegexp = regexp.MustCompile(`[a-z0-9]+(?:[._-][a-z0-9]+)*`)
|
||||
|
||||
// RepositoryNameRegexp builds on RepositoryNameComponentRegexp to allow 1 to
|
||||
// 5 path components, separated by a forward slash.
|
||||
var RepositoryNameRegexp = regexp.MustCompile(`(?:` + RepositoryNameComponentRegexp.String() + `/){0,4}` + RepositoryNameComponentRegexp.String())
|
||||
|
||||
// TagNameRegexp matches valid tag names. From docker/docker:graph/tags.go.
|
||||
var TagNameRegexp = regexp.MustCompile(`[\w][\w.-]{0,127}`)
|
||||
|
||||
// DigestRegexp matches valid digest types.
|
||||
var DigestRegexp = regexp.MustCompile(`[a-zA-Z0-9-_+.]+:[a-zA-Z0-9-_+.=]+`)
|
||||
|
|
@ -1,66 +0,0 @@
|
|||
package v2
|
||||
|
||||
import "github.com/gorilla/mux"
|
||||
|
||||
// The following are definitions of the name under which all V2 routes are
|
||||
// registered. These symbols can be used to look up a route based on the name.
|
||||
const (
|
||||
RouteNameBase = "base"
|
||||
RouteNameManifest = "manifest"
|
||||
RouteNameTags = "tags"
|
||||
RouteNameBlob = "blob"
|
||||
RouteNameBlobUpload = "blob-upload"
|
||||
RouteNameBlobUploadChunk = "blob-upload-chunk"
|
||||
)
|
||||
|
||||
var allEndpoints = []string{
|
||||
RouteNameManifest,
|
||||
RouteNameTags,
|
||||
RouteNameBlob,
|
||||
RouteNameBlobUpload,
|
||||
RouteNameBlobUploadChunk,
|
||||
}
|
||||
|
||||
// Router builds a gorilla router with named routes for the various API
|
||||
// methods. This can be used directly by both server implementations and
|
||||
// clients.
|
||||
func Router() *mux.Router {
|
||||
router := mux.NewRouter().
|
||||
StrictSlash(true)
|
||||
|
||||
// GET /v2/ Check Check that the registry implements API version 2(.1)
|
||||
router.
|
||||
Path("/v2/").
|
||||
Name(RouteNameBase)
|
||||
|
||||
// GET /v2/<name>/manifest/<reference> Image Manifest Fetch the image manifest identified by name and reference where reference can be a tag or digest.
|
||||
// PUT /v2/<name>/manifest/<reference> Image Manifest Upload the image manifest identified by name and reference where reference can be a tag or digest.
|
||||
// DELETE /v2/<name>/manifest/<reference> Image Manifest Delete the image identified by name and reference where reference can be a tag or digest.
|
||||
router.
|
||||
Path("/v2/{name:" + RepositoryNameRegexp.String() + "}/manifests/{reference:" + TagNameRegexp.String() + "|" + DigestRegexp.String() + "}").
|
||||
Name(RouteNameManifest)
|
||||
|
||||
// GET /v2/<name>/tags/list Tags Fetch the tags under the repository identified by name.
|
||||
router.
|
||||
Path("/v2/{name:" + RepositoryNameRegexp.String() + "}/tags/list").
|
||||
Name(RouteNameTags)
|
||||
|
||||
// GET /v2/<name>/blob/<digest> Layer Fetch the blob identified by digest.
|
||||
router.
|
||||
Path("/v2/{name:" + RepositoryNameRegexp.String() + "}/blobs/{digest:[a-zA-Z0-9-_+.]+:[a-zA-Z0-9-_+.=]+}").
|
||||
Name(RouteNameBlob)
|
||||
|
||||
// POST /v2/<name>/blob/upload/ Layer Upload Initiate an upload of the layer identified by tarsum.
|
||||
router.
|
||||
Path("/v2/{name:" + RepositoryNameRegexp.String() + "}/blobs/uploads/").
|
||||
Name(RouteNameBlobUpload)
|
||||
|
||||
// GET /v2/<name>/blob/upload/<uuid> Layer Upload Get the status of the upload identified by tarsum and uuid.
|
||||
// PUT /v2/<name>/blob/upload/<uuid> Layer Upload Upload all or a chunk of the upload identified by tarsum and uuid.
|
||||
// DELETE /v2/<name>/blob/upload/<uuid> Layer Upload Cancel the upload identified by layer and uuid
|
||||
router.
|
||||
Path("/v2/{name:" + RepositoryNameRegexp.String() + "}/blobs/uploads/{uuid}").
|
||||
Name(RouteNameBlobUploadChunk)
|
||||
|
||||
return router
|
||||
}
|
||||
|
|
@ -1,192 +0,0 @@
|
|||
package v2
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"reflect"
|
||||
"testing"
|
||||
|
||||
"github.com/gorilla/mux"
|
||||
)
|
||||
|
||||
type routeTestCase struct {
|
||||
RequestURI string
|
||||
Vars map[string]string
|
||||
RouteName string
|
||||
StatusCode int
|
||||
}
|
||||
|
||||
// TestRouter registers a test handler with all the routes and ensures that
|
||||
// each route returns the expected path variables. Not method verification is
|
||||
// present. This not meant to be exhaustive but as check to ensure that the
|
||||
// expected variables are extracted.
|
||||
//
|
||||
// This may go away as the application structure comes together.
|
||||
func TestRouter(t *testing.T) {
|
||||
|
||||
router := Router()
|
||||
|
||||
testHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
testCase := routeTestCase{
|
||||
RequestURI: r.RequestURI,
|
||||
Vars: mux.Vars(r),
|
||||
RouteName: mux.CurrentRoute(r).GetName(),
|
||||
}
|
||||
|
||||
enc := json.NewEncoder(w)
|
||||
|
||||
if err := enc.Encode(testCase); err != nil {
|
||||
http.Error(w, err.Error(), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
})
|
||||
|
||||
// Startup test server
|
||||
server := httptest.NewServer(router)
|
||||
|
||||
for _, testcase := range []routeTestCase{
|
||||
{
|
||||
RouteName: RouteNameBase,
|
||||
RequestURI: "/v2/",
|
||||
Vars: map[string]string{},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameManifest,
|
||||
RequestURI: "/v2/foo/manifests/bar",
|
||||
Vars: map[string]string{
|
||||
"name": "foo",
|
||||
"reference": "bar",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameManifest,
|
||||
RequestURI: "/v2/foo/bar/manifests/tag",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
"reference": "tag",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameTags,
|
||||
RequestURI: "/v2/foo/bar/tags/list",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameBlob,
|
||||
RequestURI: "/v2/foo/bar/blobs/tarsum.dev+foo:abcdef0919234",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
"digest": "tarsum.dev+foo:abcdef0919234",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameBlob,
|
||||
RequestURI: "/v2/foo/bar/blobs/sha256:abcdef0919234",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
"digest": "sha256:abcdef0919234",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameBlobUpload,
|
||||
RequestURI: "/v2/foo/bar/blobs/uploads/",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameBlobUploadChunk,
|
||||
RequestURI: "/v2/foo/bar/blobs/uploads/uuid",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
"uuid": "uuid",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameBlobUploadChunk,
|
||||
RequestURI: "/v2/foo/bar/blobs/uploads/D95306FA-FAD3-4E36-8D41-CF1C93EF8286",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
"uuid": "D95306FA-FAD3-4E36-8D41-CF1C93EF8286",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameBlobUploadChunk,
|
||||
RequestURI: "/v2/foo/bar/blobs/uploads/RDk1MzA2RkEtRkFEMy00RTM2LThENDEtQ0YxQzkzRUY4Mjg2IA==",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar",
|
||||
"uuid": "RDk1MzA2RkEtRkFEMy00RTM2LThENDEtQ0YxQzkzRUY4Mjg2IA==",
|
||||
},
|
||||
},
|
||||
{
|
||||
// Check ambiguity: ensure we can distinguish between tags for
|
||||
// "foo/bar/image/image" and image for "foo/bar/image" with tag
|
||||
// "tags"
|
||||
RouteName: RouteNameManifest,
|
||||
RequestURI: "/v2/foo/bar/manifests/manifests/tags",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar/manifests",
|
||||
"reference": "tags",
|
||||
},
|
||||
},
|
||||
{
|
||||
// This case presents an ambiguity between foo/bar with tag="tags"
|
||||
// and list tags for "foo/bar/manifest"
|
||||
RouteName: RouteNameTags,
|
||||
RequestURI: "/v2/foo/bar/manifests/tags/list",
|
||||
Vars: map[string]string{
|
||||
"name": "foo/bar/manifests",
|
||||
},
|
||||
},
|
||||
{
|
||||
RouteName: RouteNameBlobUploadChunk,
|
||||
RequestURI: "/v2/foo/../../blob/uploads/D95306FA-FAD3-4E36-8D41-CF1C93EF8286",
|
||||
StatusCode: http.StatusNotFound,
|
||||
},
|
||||
} {
|
||||
// Register the endpoint
|
||||
router.GetRoute(testcase.RouteName).Handler(testHandler)
|
||||
u := server.URL + testcase.RequestURI
|
||||
|
||||
resp, err := http.Get(u)
|
||||
|
||||
if err != nil {
|
||||
t.Fatalf("error issuing get request: %v", err)
|
||||
}
|
||||
|
||||
if testcase.StatusCode == 0 {
|
||||
// Override default, zero-value
|
||||
testcase.StatusCode = http.StatusOK
|
||||
}
|
||||
|
||||
if resp.StatusCode != testcase.StatusCode {
|
||||
t.Fatalf("unexpected status for %s: %v %v", u, resp.Status, resp.StatusCode)
|
||||
}
|
||||
|
||||
if testcase.StatusCode != http.StatusOK {
|
||||
// We don't care about json response.
|
||||
continue
|
||||
}
|
||||
|
||||
dec := json.NewDecoder(resp.Body)
|
||||
|
||||
var actualRouteInfo routeTestCase
|
||||
if err := dec.Decode(&actualRouteInfo); err != nil {
|
||||
t.Fatalf("error reading json response: %v", err)
|
||||
}
|
||||
// Needs to be set out of band
|
||||
actualRouteInfo.StatusCode = resp.StatusCode
|
||||
|
||||
if actualRouteInfo.RouteName != testcase.RouteName {
|
||||
t.Fatalf("incorrect route %q matched, expected %q", actualRouteInfo.RouteName, testcase.RouteName)
|
||||
}
|
||||
|
||||
if !reflect.DeepEqual(actualRouteInfo, testcase) {
|
||||
t.Fatalf("actual does not equal expected: %#v != %#v", actualRouteInfo, testcase)
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
179
docs/v2/urls.go
179
docs/v2/urls.go
|
|
@ -1,179 +0,0 @@
|
|||
package v2
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
"net/url"
|
||||
|
||||
"github.com/gorilla/mux"
|
||||
)
|
||||
|
||||
// URLBuilder creates registry API urls from a single base endpoint. It can be
|
||||
// used to create urls for use in a registry client or server.
|
||||
//
|
||||
// All urls will be created from the given base, including the api version.
|
||||
// For example, if a root of "/foo/" is provided, urls generated will be fall
|
||||
// under "/foo/v2/...". Most application will only provide a schema, host and
|
||||
// port, such as "https://localhost:5000/".
|
||||
type URLBuilder struct {
|
||||
root *url.URL // url root (ie http://localhost/)
|
||||
router *mux.Router
|
||||
}
|
||||
|
||||
// NewURLBuilder creates a URLBuilder with provided root url object.
|
||||
func NewURLBuilder(root *url.URL) *URLBuilder {
|
||||
return &URLBuilder{
|
||||
root: root,
|
||||
router: Router(),
|
||||
}
|
||||
}
|
||||
|
||||
// NewURLBuilderFromString workes identically to NewURLBuilder except it takes
|
||||
// a string argument for the root, returning an error if it is not a valid
|
||||
// url.
|
||||
func NewURLBuilderFromString(root string) (*URLBuilder, error) {
|
||||
u, err := url.Parse(root)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return NewURLBuilder(u), nil
|
||||
}
|
||||
|
||||
// NewURLBuilderFromRequest uses information from an *http.Request to
|
||||
// construct the root url.
|
||||
func NewURLBuilderFromRequest(r *http.Request) *URLBuilder {
|
||||
u := &url.URL{
|
||||
Scheme: r.URL.Scheme,
|
||||
Host: r.Host,
|
||||
}
|
||||
|
||||
return NewURLBuilder(u)
|
||||
}
|
||||
|
||||
// BuildBaseURL constructs a base url for the API, typically just "/v2/".
|
||||
func (ub *URLBuilder) BuildBaseURL() (string, error) {
|
||||
route := ub.cloneRoute(RouteNameBase)
|
||||
|
||||
baseURL, err := route.URL()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return baseURL.String(), nil
|
||||
}
|
||||
|
||||
// BuildTagsURL constructs a url to list the tags in the named repository.
|
||||
func (ub *URLBuilder) BuildTagsURL(name string) (string, error) {
|
||||
route := ub.cloneRoute(RouteNameTags)
|
||||
|
||||
tagsURL, err := route.URL("name", name)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return tagsURL.String(), nil
|
||||
}
|
||||
|
||||
// BuildManifestURL constructs a url for the manifest identified by name and reference.
|
||||
func (ub *URLBuilder) BuildManifestURL(name, reference string) (string, error) {
|
||||
route := ub.cloneRoute(RouteNameManifest)
|
||||
|
||||
manifestURL, err := route.URL("name", name, "reference", reference)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return manifestURL.String(), nil
|
||||
}
|
||||
|
||||
// BuildBlobURL constructs the url for the blob identified by name and dgst.
|
||||
func (ub *URLBuilder) BuildBlobURL(name string, dgst string) (string, error) {
|
||||
route := ub.cloneRoute(RouteNameBlob)
|
||||
|
||||
layerURL, err := route.URL("name", name, "digest", dgst)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return layerURL.String(), nil
|
||||
}
|
||||
|
||||
// BuildBlobUploadURL constructs a url to begin a blob upload in the
|
||||
// repository identified by name.
|
||||
func (ub *URLBuilder) BuildBlobUploadURL(name string, values ...url.Values) (string, error) {
|
||||
route := ub.cloneRoute(RouteNameBlobUpload)
|
||||
|
||||
uploadURL, err := route.URL("name", name)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return appendValuesURL(uploadURL, values...).String(), nil
|
||||
}
|
||||
|
||||
// BuildBlobUploadChunkURL constructs a url for the upload identified by uuid,
|
||||
// including any url values. This should generally not be used by clients, as
|
||||
// this url is provided by server implementations during the blob upload
|
||||
// process.
|
||||
func (ub *URLBuilder) BuildBlobUploadChunkURL(name, uuid string, values ...url.Values) (string, error) {
|
||||
route := ub.cloneRoute(RouteNameBlobUploadChunk)
|
||||
|
||||
uploadURL, err := route.URL("name", name, "uuid", uuid)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return appendValuesURL(uploadURL, values...).String(), nil
|
||||
}
|
||||
|
||||
// clondedRoute returns a clone of the named route from the router. Routes
|
||||
// must be cloned to avoid modifying them during url generation.
|
||||
func (ub *URLBuilder) cloneRoute(name string) clonedRoute {
|
||||
route := new(mux.Route)
|
||||
root := new(url.URL)
|
||||
|
||||
*route = *ub.router.GetRoute(name) // clone the route
|
||||
*root = *ub.root
|
||||
|
||||
return clonedRoute{Route: route, root: root}
|
||||
}
|
||||
|
||||
type clonedRoute struct {
|
||||
*mux.Route
|
||||
root *url.URL
|
||||
}
|
||||
|
||||
func (cr clonedRoute) URL(pairs ...string) (*url.URL, error) {
|
||||
routeURL, err := cr.Route.URL(pairs...)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return cr.root.ResolveReference(routeURL), nil
|
||||
}
|
||||
|
||||
// appendValuesURL appends the parameters to the url.
|
||||
func appendValuesURL(u *url.URL, values ...url.Values) *url.URL {
|
||||
merged := u.Query()
|
||||
|
||||
for _, v := range values {
|
||||
for k, vv := range v {
|
||||
merged[k] = append(merged[k], vv...)
|
||||
}
|
||||
}
|
||||
|
||||
u.RawQuery = merged.Encode()
|
||||
return u
|
||||
}
|
||||
|
||||
// appendValues appends the parameters to the url. Panics if the string is not
|
||||
// a url.
|
||||
func appendValues(u string, values ...url.Values) string {
|
||||
up, err := url.Parse(u)
|
||||
|
||||
if err != nil {
|
||||
panic(err) // should never happen
|
||||
}
|
||||
|
||||
return appendValuesURL(up, values...).String()
|
||||
}
|
||||
|
|
@ -1,113 +0,0 @@
|
|||
package v2
|
||||
|
||||
import (
|
||||
"net/url"
|
||||
"testing"
|
||||
)
|
||||
|
||||
type urlBuilderTestCase struct {
|
||||
description string
|
||||
expectedPath string
|
||||
build func() (string, error)
|
||||
}
|
||||
|
||||
// TestURLBuilder tests the various url building functions, ensuring they are
|
||||
// returning the expected values.
|
||||
func TestURLBuilder(t *testing.T) {
|
||||
var (
|
||||
urlBuilder *URLBuilder
|
||||
err error
|
||||
)
|
||||
|
||||
testCases := []urlBuilderTestCase{
|
||||
{
|
||||
description: "test base url",
|
||||
expectedPath: "/v2/",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildBaseURL()
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "test tags url",
|
||||
expectedPath: "/v2/foo/bar/tags/list",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildTagsURL("foo/bar")
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "test manifest url",
|
||||
expectedPath: "/v2/foo/bar/manifests/tag",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildManifestURL("foo/bar", "tag")
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "build blob url",
|
||||
expectedPath: "/v2/foo/bar/blobs/tarsum.v1+sha256:abcdef0123456789",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildBlobURL("foo/bar", "tarsum.v1+sha256:abcdef0123456789")
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "build blob upload url",
|
||||
expectedPath: "/v2/foo/bar/blobs/uploads/",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildBlobUploadURL("foo/bar")
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "build blob upload url with digest and size",
|
||||
expectedPath: "/v2/foo/bar/blobs/uploads/?digest=tarsum.v1%2Bsha256%3Aabcdef0123456789&size=10000",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildBlobUploadURL("foo/bar", url.Values{
|
||||
"size": []string{"10000"},
|
||||
"digest": []string{"tarsum.v1+sha256:abcdef0123456789"},
|
||||
})
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "build blob upload chunk url",
|
||||
expectedPath: "/v2/foo/bar/blobs/uploads/uuid-part",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildBlobUploadChunkURL("foo/bar", "uuid-part")
|
||||
},
|
||||
},
|
||||
{
|
||||
description: "build blob upload chunk url with digest and size",
|
||||
expectedPath: "/v2/foo/bar/blobs/uploads/uuid-part?digest=tarsum.v1%2Bsha256%3Aabcdef0123456789&size=10000",
|
||||
build: func() (string, error) {
|
||||
return urlBuilder.BuildBlobUploadChunkURL("foo/bar", "uuid-part", url.Values{
|
||||
"size": []string{"10000"},
|
||||
"digest": []string{"tarsum.v1+sha256:abcdef0123456789"},
|
||||
})
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
roots := []string{
|
||||
"http://example.com",
|
||||
"https://example.com",
|
||||
"http://localhost:5000",
|
||||
"https://localhost:5443",
|
||||
}
|
||||
|
||||
for _, root := range roots {
|
||||
urlBuilder, err = NewURLBuilderFromString(root)
|
||||
if err != nil {
|
||||
t.Fatalf("unexpected error creating urlbuilder: %v", err)
|
||||
}
|
||||
|
||||
for _, testCase := range testCases {
|
||||
url, err := testCase.build()
|
||||
if err != nil {
|
||||
t.Fatalf("%s: error building url: %v", testCase.description, err)
|
||||
}
|
||||
|
||||
expectedURL := root + testCase.expectedPath
|
||||
|
||||
if url != expectedURL {
|
||||
t.Fatalf("%s: %q != %q", testCase.description, url, expectedURL)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue