distribution/registry/client/errors.go
Derek McGowan d92e5b1096 Add tags implementation
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00

121 lines
3.3 KiB
Go

package client
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"github.com/docker/distribution/digest"
"github.com/docker/distribution/registry/api/v2"
)
// RepositoryNotFoundError is returned when making an operation against a
// repository that does not exist in the registry.
type RepositoryNotFoundError struct {
Name string
}
func (e *RepositoryNotFoundError) Error() string {
return fmt.Sprintf("No repository found with Name: %s", e.Name)
}
// ImageManifestNotFoundError is returned when making an operation against a
// given image manifest that does not exist in the registry.
type ImageManifestNotFoundError struct {
Name string
Tag string
}
func (e *ImageManifestNotFoundError) Error() string {
return fmt.Sprintf("No manifest found with Name: %s, Tag: %s",
e.Name, e.Tag)
}
// BlobNotFoundError is returned when making an operation against a given image
// layer that does not exist in the registry.
type BlobNotFoundError struct {
Name string
Digest digest.Digest
}
func (e *BlobNotFoundError) Error() string {
return fmt.Sprintf("No blob found with Name: %s, Digest: %s",
e.Name, e.Digest)
}
// BlobUploadNotFoundError is returned when making a blob upload operation against an
// invalid blob upload location url.
// This may be the result of using a cancelled, completed, or stale upload
// location.
type BlobUploadNotFoundError struct {
Location string
}
func (e *BlobUploadNotFoundError) Error() string {
return fmt.Sprintf("No blob upload found at Location: %s", e.Location)
}
// BlobUploadInvalidRangeError is returned when attempting to upload an image
// blob chunk that is out of order.
// This provides the known BlobSize and LastValidRange which can be used to
// resume the upload.
type BlobUploadInvalidRangeError struct {
Location string
LastValidRange int
BlobSize int
}
func (e *BlobUploadInvalidRangeError) Error() string {
return fmt.Sprintf(
"Invalid range provided for upload at Location: %s. Last Valid Range: %d, Blob Size: %d",
e.Location, e.LastValidRange, e.BlobSize)
}
// UnexpectedHTTPStatusError is returned when an unexpected HTTP status is
// returned when making a registry api call.
type UnexpectedHTTPStatusError struct {
Status string
}
func (e *UnexpectedHTTPStatusError) Error() string {
return fmt.Sprintf("Received unexpected HTTP status: %s", e.Status)
}
// UnexpectedHTTPResponseError is returned when an expected HTTP status code
// is returned, but the content was unexpected and failed to be parsed.
type UnexpectedHTTPResponseError struct {
ParseErr error
Response []byte
}
func (e *UnexpectedHTTPResponseError) Error() string {
shortenedResponse := string(e.Response)
if len(shortenedResponse) > 15 {
shortenedResponse = shortenedResponse[:12] + "..."
}
return fmt.Sprintf("Error parsing HTTP response: %s: %q", e.ParseErr.Error(), shortenedResponse)
}
func parseHTTPErrorResponse(response *http.Response) error {
var errors v2.Errors
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return err
}
if err := json.Unmarshal(body, &errors); err != nil {
return &UnexpectedHTTPResponseError{
ParseErr: err,
Response: body,
}
}
return &errors
}
func handleErrorResponse(resp *http.Response) error {
if resp.StatusCode >= 400 && resp.StatusCode < 500 {
return parseHTTPErrorResponse(resp)
}
return &UnexpectedHTTPStatusError{Status: resp.Status}
}