distribution/api/errors/descriptors.go

136 lines
4.5 KiB
Go

package errors
import "net/http"
// 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
// DefaultStatusCode should to be returned via the HTTP API. Some error
// may have different status codes depending on the situation.
DefaultStatusCode int
}
var descriptors = []ErrorDescriptor{
{
Code: ErrorCodeUnknown,
Value: "UNKNOWN",
Message: "unknown error",
},
{
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.`,
DefaultStatusCode: http.StatusBadRequest,
},
{
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.`,
DefaultStatusCode: 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.`,
DefaultStatusCode: http.StatusBadRequest,
},
{
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.`,
DefaultStatusCode: http.StatusBadRequest,
},
{
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.`,
DefaultStatusCode: 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.`,
DefaultStatusCode: 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.`,
DefaultStatusCode: 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.`,
DefaultStatusCode: 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.`,
DefaultStatusCode: 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.`,
DefaultStatusCode: http.StatusNotFound,
},
}
var errorCodeToDescriptors map[ErrorCode]ErrorDescriptor
var idToDescriptors map[string]ErrorDescriptor
func init() {
errorCodeToDescriptors = make(map[ErrorCode]ErrorDescriptor, len(descriptors))
idToDescriptors = make(map[string]ErrorDescriptor, len(descriptors))
for _, descriptor := range descriptors {
errorCodeToDescriptors[descriptor.Code] = descriptor
idToDescriptors[descriptor.Value] = descriptor
}
}