From 67e5c940c40c10780d2ed451255a24703f0e4b3f Mon Sep 17 00:00:00 2001 From: Derek McGowan Date: Tue, 31 Mar 2015 15:02:27 -0700 Subject: [PATCH] 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 (github: dmcgowan) --- docs/endpoint.go | 2 +- docs/session_v2.go | 24 +++--- docs/v2/descriptors.go | 144 ------------------------------- docs/v2/doc.go | 13 --- docs/v2/errors.go | 185 --------------------------------------- docs/v2/errors_test.go | 163 ---------------------------------- docs/v2/regexp.go | 22 ----- docs/v2/routes.go | 66 -------------- docs/v2/routes_test.go | 192 ----------------------------------------- docs/v2/urls.go | 179 -------------------------------------- docs/v2/urls_test.go | 113 ------------------------ 11 files changed, 13 insertions(+), 1090 deletions(-) delete mode 100644 docs/v2/descriptors.go delete mode 100644 docs/v2/doc.go delete mode 100644 docs/v2/errors.go delete mode 100644 docs/v2/errors_test.go delete mode 100644 docs/v2/regexp.go delete mode 100644 docs/v2/routes.go delete mode 100644 docs/v2/routes_test.go delete mode 100644 docs/v2/urls.go delete mode 100644 docs/v2/urls_test.go diff --git a/docs/endpoint.go b/docs/endpoint.go index 69a718e1..84b11a98 100644 --- a/docs/endpoint.go +++ b/docs/endpoint.go @@ -11,8 +11,8 @@ import ( "strings" "github.com/Sirupsen/logrus" + "github.com/docker/distribution/registry/api/v2" "github.com/docker/docker/pkg/requestdecorator" - "github.com/docker/docker/registry/v2" ) // for mocking in unit tests diff --git a/docs/session_v2.go b/docs/session_v2.go index a01c8b9a..fb1d18e8 100644 --- a/docs/session_v2.go +++ b/docs/session_v2.go @@ -11,7 +11,7 @@ import ( "github.com/Sirupsen/logrus" "github.com/docker/distribution/digest" - "github.com/docker/docker/registry/v2" + "github.com/docker/distribution/registry/api/v2" "github.com/docker/docker/utils" ) @@ -109,8 +109,8 @@ func (r *Session) GetV2ImageManifest(ep *Endpoint, imageName, tagName string, au // - Succeeded to head image blob (already exists) // - Failed with no error (continue to Push the Blob) // - Failed with error -func (r *Session) HeadV2ImageBlob(ep *Endpoint, imageName, sumType, sum string, auth *RequestAuthorization) (bool, error) { - routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, sumType+":"+sum) +func (r *Session) HeadV2ImageBlob(ep *Endpoint, imageName string, dgst digest.Digest, auth *RequestAuthorization) (bool, error) { + routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, dgst) if err != nil { return false, err } @@ -141,11 +141,11 @@ func (r *Session) HeadV2ImageBlob(ep *Endpoint, imageName, sumType, sum string, return false, nil } - return false, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying head request for %s - %s:%s", res.StatusCode, imageName, sumType, sum), res) + return false, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying head request for %s - %s", res.StatusCode, imageName, dgst), res) } -func (r *Session) GetV2ImageBlob(ep *Endpoint, imageName, sumType, sum string, blobWrtr io.Writer, auth *RequestAuthorization) error { - routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, sumType+":"+sum) +func (r *Session) GetV2ImageBlob(ep *Endpoint, imageName string, dgst digest.Digest, blobWrtr io.Writer, auth *RequestAuthorization) error { + routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, dgst) if err != nil { return err } @@ -175,8 +175,8 @@ func (r *Session) GetV2ImageBlob(ep *Endpoint, imageName, sumType, sum string, b return err } -func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName, sumType, sum string, auth *RequestAuthorization) (io.ReadCloser, int64, error) { - routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, sumType+":"+sum) +func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName string, dgst digest.Digest, auth *RequestAuthorization) (io.ReadCloser, int64, error) { + routeURL, err := getV2Builder(ep).BuildBlobURL(imageName, dgst) if err != nil { return nil, 0, err } @@ -198,7 +198,7 @@ func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName, sumType, sum str if res.StatusCode == 401 { return nil, 0, errLoginRequired } - return nil, 0, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to pull %s blob - %s:%s", res.StatusCode, imageName, sumType, sum), res) + return nil, 0, utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to pull %s blob - %s", res.StatusCode, imageName, dgst), res) } lenStr := res.Header.Get("Content-Length") l, err := strconv.ParseInt(lenStr, 10, 64) @@ -212,7 +212,7 @@ func (r *Session) GetV2ImageBlobReader(ep *Endpoint, imageName, sumType, sum str // Push the image to the server for storage. // 'layer' is an uncompressed reader of the blob to be pushed. // The server will generate it's own checksum calculation. -func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName, sumType, sumStr string, blobRdr io.Reader, auth *RequestAuthorization) error { +func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName string, dgst digest.Digest, blobRdr io.Reader, auth *RequestAuthorization) error { location, err := r.initiateBlobUpload(ep, imageName, auth) if err != nil { return err @@ -225,7 +225,7 @@ func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName, sumType, sumStr string return err } queryParams := req.URL.Query() - queryParams.Add("digest", sumType+":"+sumStr) + queryParams.Add("digest", dgst.String()) req.URL.RawQuery = queryParams.Encode() if err := auth.Authorize(req); err != nil { return err @@ -245,7 +245,7 @@ func (r *Session) PutV2ImageBlob(ep *Endpoint, imageName, sumType, sumStr string return err } logrus.Debugf("Unexpected response from server: %q %#v", errBody, res.Header) - return utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to push %s blob - %s:%s", res.StatusCode, imageName, sumType, sumStr), res) + return utils.NewHTTPRequestError(fmt.Sprintf("Server error: %d trying to push %s blob - %s", res.StatusCode, imageName, dgst), res) } return nil diff --git a/docs/v2/descriptors.go b/docs/v2/descriptors.go deleted file mode 100644 index 68d18241..00000000 --- a/docs/v2/descriptors.go +++ /dev/null @@ -1,144 +0,0 @@ -package v2 - -import "net/http" - -// TODO(stevvooe): Add route descriptors for each named route, along with -// accepted methods, parameters, returned status codes and error codes. - -// ErrorDescriptor provides relevant information about a given error code. -type ErrorDescriptor struct { - // Code is the error code that this descriptor describes. - Code ErrorCode - - // Value provides a unique, string key, often captilized with - // underscores, to identify the error code. This value is used as the - // keyed value when serializing api errors. - Value string - - // Message is a short, human readable decription of the error condition - // included in API responses. - Message string - - // Description provides a complete account of the errors purpose, suitable - // for use in documentation. - Description string - - // HTTPStatusCodes provides a list of status under which this error - // condition may arise. If it is empty, the error condition may be seen - // for any status code. - HTTPStatusCodes []int -} - -// ErrorDescriptors provides a list of HTTP API Error codes that may be -// encountered when interacting with the registry API. -var ErrorDescriptors = []ErrorDescriptor{ - { - Code: ErrorCodeUnknown, - Value: "UNKNOWN", - Message: "unknown error", - Description: `Generic error returned when the error does not have an - API classification.`, - }, - { - Code: ErrorCodeDigestInvalid, - Value: "DIGEST_INVALID", - Message: "provided digest did not match uploaded content", - Description: `When a blob is uploaded, the registry will check that - the content matches the digest provided by the client. The error may - include a detail structure with the key "digest", including the - invalid digest string. This error may also be returned when a manifest - includes an invalid layer digest.`, - HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound}, - }, - { - Code: ErrorCodeSizeInvalid, - Value: "SIZE_INVALID", - Message: "provided length did not match content length", - Description: `When a layer is uploaded, the provided size will be - checked against the uploaded content. If they do not match, this error - will be returned.`, - HTTPStatusCodes: []int{http.StatusBadRequest}, - }, - { - Code: ErrorCodeNameInvalid, - Value: "NAME_INVALID", - Message: "manifest name did not match URI", - Description: `During a manifest upload, if the name in the manifest - does not match the uri name, this error will be returned.`, - HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound}, - }, - { - Code: ErrorCodeTagInvalid, - Value: "TAG_INVALID", - Message: "manifest tag did not match URI", - Description: `During a manifest upload, if the tag in the manifest - does not match the uri tag, this error will be returned.`, - HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound}, - }, - { - Code: ErrorCodeNameUnknown, - Value: "NAME_UNKNOWN", - Message: "repository name not known to registry", - Description: `This is returned if the name used during an operation is - unknown to the registry.`, - HTTPStatusCodes: []int{http.StatusNotFound}, - }, - { - Code: ErrorCodeManifestUnknown, - Value: "MANIFEST_UNKNOWN", - Message: "manifest unknown", - Description: `This error is returned when the manifest, identified by - name and tag is unknown to the repository.`, - HTTPStatusCodes: []int{http.StatusNotFound}, - }, - { - Code: ErrorCodeManifestInvalid, - Value: "MANIFEST_INVALID", - Message: "manifest invalid", - Description: `During upload, manifests undergo several checks ensuring - validity. If those checks fail, this error may be returned, unless a - more specific error is included. The detail will contain information - the failed validation.`, - HTTPStatusCodes: []int{http.StatusBadRequest}, - }, - { - Code: ErrorCodeManifestUnverified, - Value: "MANIFEST_UNVERIFIED", - Message: "manifest failed signature verification", - Description: `During manifest upload, if the manifest fails signature - verification, this error will be returned.`, - HTTPStatusCodes: []int{http.StatusBadRequest}, - }, - { - Code: ErrorCodeBlobUnknown, - Value: "BLOB_UNKNOWN", - Message: "blob unknown to registry", - Description: `This error may be returned when a blob is unknown to the - registry in a specified repository. This can be returned with a - standard get or if a manifest references an unknown layer during - upload.`, - HTTPStatusCodes: []int{http.StatusBadRequest, http.StatusNotFound}, - }, - - { - Code: ErrorCodeBlobUploadUnknown, - Value: "BLOB_UPLOAD_UNKNOWN", - Message: "blob upload unknown to registry", - Description: `If a blob upload has been cancelled or was never - started, this error code may be returned.`, - HTTPStatusCodes: []int{http.StatusNotFound}, - }, -} - -var errorCodeToDescriptors map[ErrorCode]ErrorDescriptor -var idToDescriptors map[string]ErrorDescriptor - -func init() { - errorCodeToDescriptors = make(map[ErrorCode]ErrorDescriptor, len(ErrorDescriptors)) - idToDescriptors = make(map[string]ErrorDescriptor, len(ErrorDescriptors)) - - for _, descriptor := range ErrorDescriptors { - errorCodeToDescriptors[descriptor.Code] = descriptor - idToDescriptors[descriptor.Value] = descriptor - } -} diff --git a/docs/v2/doc.go b/docs/v2/doc.go deleted file mode 100644 index 30fe2271..00000000 --- a/docs/v2/doc.go +++ /dev/null @@ -1,13 +0,0 @@ -// Package v2 describes routes, urls and the error codes used in the Docker -// Registry JSON HTTP API V2. In addition to declarations, descriptors are -// provided for routes and error codes that can be used for implementation and -// automatically generating documentation. -// -// Definitions here are considered to be locked down for the V2 registry api. -// Any changes must be considered carefully and should not proceed without a -// change proposal. -// -// Currently, while the HTTP API definitions are considered stable, the Go API -// exports are considered unstable. Go API consumers should take care when -// relying on these definitions until this message is deleted. -package v2 diff --git a/docs/v2/errors.go b/docs/v2/errors.go deleted file mode 100644 index 8c85d3a9..00000000 --- a/docs/v2/errors.go +++ /dev/null @@ -1,185 +0,0 @@ -package v2 - -import ( - "fmt" - "strings" -) - -// ErrorCode represents the error type. The errors are serialized via strings -// and the integer format may change and should *never* be exported. -type ErrorCode int - -const ( - // ErrorCodeUnknown is a catch-all for errors not defined below. - ErrorCodeUnknown ErrorCode = iota - - // ErrorCodeDigestInvalid is returned when uploading a blob if the - // provided digest does not match the blob contents. - ErrorCodeDigestInvalid - - // ErrorCodeSizeInvalid is returned when uploading a blob if the provided - // size does not match the content length. - ErrorCodeSizeInvalid - - // ErrorCodeNameInvalid is returned when the name in the manifest does not - // match the provided name. - ErrorCodeNameInvalid - - // ErrorCodeTagInvalid is returned when the tag in the manifest does not - // match the provided tag. - ErrorCodeTagInvalid - - // ErrorCodeNameUnknown when the repository name is not known. - ErrorCodeNameUnknown - - // ErrorCodeManifestUnknown returned when image manifest is unknown. - ErrorCodeManifestUnknown - - // ErrorCodeManifestInvalid returned when an image manifest is invalid, - // typically during a PUT operation. This error encompasses all errors - // encountered during manifest validation that aren't signature errors. - ErrorCodeManifestInvalid - - // ErrorCodeManifestUnverified is returned when the manifest fails - // signature verfication. - ErrorCodeManifestUnverified - - // ErrorCodeBlobUnknown is returned when a blob is unknown to the - // registry. This can happen when the manifest references a nonexistent - // layer or the result is not found by a blob fetch. - ErrorCodeBlobUnknown - - // ErrorCodeBlobUploadUnknown is returned when an upload is unknown. - ErrorCodeBlobUploadUnknown -) - -// ParseErrorCode attempts to parse the error code string, returning -// ErrorCodeUnknown if the error is not known. -func ParseErrorCode(s string) ErrorCode { - desc, ok := idToDescriptors[s] - - if !ok { - return ErrorCodeUnknown - } - - return desc.Code -} - -// Descriptor returns the descriptor for the error code. -func (ec ErrorCode) Descriptor() ErrorDescriptor { - d, ok := errorCodeToDescriptors[ec] - - if !ok { - return ErrorCodeUnknown.Descriptor() - } - - return d -} - -// String returns the canonical identifier for this error code. -func (ec ErrorCode) String() string { - return ec.Descriptor().Value -} - -// Message returned the human-readable error message for this error code. -func (ec ErrorCode) Message() string { - return ec.Descriptor().Message -} - -// MarshalText encodes the receiver into UTF-8-encoded text and returns the -// result. -func (ec ErrorCode) MarshalText() (text []byte, err error) { - return []byte(ec.String()), nil -} - -// UnmarshalText decodes the form generated by MarshalText. -func (ec *ErrorCode) UnmarshalText(text []byte) error { - desc, ok := idToDescriptors[string(text)] - - if !ok { - desc = ErrorCodeUnknown.Descriptor() - } - - *ec = desc.Code - - return nil -} - -// Error provides a wrapper around ErrorCode with extra Details provided. -type Error struct { - Code ErrorCode `json:"code"` - Message string `json:"message,omitempty"` - Detail interface{} `json:"detail,omitempty"` -} - -// Error returns a human readable representation of the error. -func (e Error) Error() string { - return fmt.Sprintf("%s: %s", - strings.ToLower(strings.Replace(e.Code.String(), "_", " ", -1)), - e.Message) -} - -// Errors provides the envelope for multiple errors and a few sugar methods -// for use within the application. -type Errors struct { - Errors []Error `json:"errors,omitempty"` -} - -// Push pushes an error on to the error stack, with the optional detail -// argument. It is a programming error (ie panic) to push more than one -// detail at a time. -func (errs *Errors) Push(code ErrorCode, details ...interface{}) { - if len(details) > 1 { - panic("please specify zero or one detail items for this error") - } - - var detail interface{} - if len(details) > 0 { - detail = details[0] - } - - if err, ok := detail.(error); ok { - detail = err.Error() - } - - errs.PushErr(Error{ - Code: code, - Message: code.Message(), - Detail: detail, - }) -} - -// PushErr pushes an error interface onto the error stack. -func (errs *Errors) PushErr(err error) { - switch err.(type) { - case Error: - errs.Errors = append(errs.Errors, err.(Error)) - default: - errs.Errors = append(errs.Errors, Error{Message: err.Error()}) - } -} - -func (errs *Errors) Error() string { - switch errs.Len() { - case 0: - return "" - case 1: - return errs.Errors[0].Error() - default: - msg := "errors:\n" - for _, err := range errs.Errors { - msg += err.Error() + "\n" - } - return msg - } -} - -// Clear clears the errors. -func (errs *Errors) Clear() { - errs.Errors = errs.Errors[:0] -} - -// Len returns the current number of errors. -func (errs *Errors) Len() int { - return len(errs.Errors) -} diff --git a/docs/v2/errors_test.go b/docs/v2/errors_test.go deleted file mode 100644 index 4a80cdfe..00000000 --- a/docs/v2/errors_test.go +++ /dev/null @@ -1,163 +0,0 @@ -package v2 - -import ( - "encoding/json" - "reflect" - "testing" -) - -// TestErrorCodes ensures that error code format, mappings and -// marshaling/unmarshaling. round trips are stable. -func TestErrorCodes(t *testing.T) { - for _, desc := range ErrorDescriptors { - if desc.Code.String() != desc.Value { - t.Fatalf("error code string incorrect: %q != %q", desc.Code.String(), desc.Value) - } - - 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) - } -} diff --git a/docs/v2/regexp.go b/docs/v2/regexp.go deleted file mode 100644 index 07484dcd..00000000 --- a/docs/v2/regexp.go +++ /dev/null @@ -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-_+.=]+`) diff --git a/docs/v2/routes.go b/docs/v2/routes.go deleted file mode 100644 index de0a38fb..00000000 --- a/docs/v2/routes.go +++ /dev/null @@ -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//manifest/ Image Manifest Fetch the image manifest identified by name and reference where reference can be a tag or digest. - // PUT /v2//manifest/ Image Manifest Upload the image manifest identified by name and reference where reference can be a tag or digest. - // DELETE /v2//manifest/ 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//tags/list Tags Fetch the tags under the repository identified by name. - router. - Path("/v2/{name:" + RepositoryNameRegexp.String() + "}/tags/list"). - Name(RouteNameTags) - - // GET /v2//blob/ 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//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//blob/upload/ Layer Upload Get the status of the upload identified by tarsum and uuid. - // PUT /v2//blob/upload/ Layer Upload Upload all or a chunk of the upload identified by tarsum and uuid. - // DELETE /v2//blob/upload/ Layer Upload Cancel the upload identified by layer and uuid - router. - Path("/v2/{name:" + RepositoryNameRegexp.String() + "}/blobs/uploads/{uuid}"). - Name(RouteNameBlobUploadChunk) - - return router -} diff --git a/docs/v2/routes_test.go b/docs/v2/routes_test.go deleted file mode 100644 index 0191feed..00000000 --- a/docs/v2/routes_test.go +++ /dev/null @@ -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) - } - } - -} diff --git a/docs/v2/urls.go b/docs/v2/urls.go deleted file mode 100644 index 38fa98af..00000000 --- a/docs/v2/urls.go +++ /dev/null @@ -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() -} diff --git a/docs/v2/urls_test.go b/docs/v2/urls_test.go deleted file mode 100644 index f30c96c0..00000000 --- a/docs/v2/urls_test.go +++ /dev/null @@ -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) - } - } - } -}