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Merge pull request #1249 from k4leung4/print-error-msg

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Print error for failed HTTP auth request.
This commit is contained in:
Stephen Day 2016-01-05 12:23:05 -08:00
commit 74d719d83f
5 changed files with 108 additions and 14 deletions
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3
registry/client/auth/session.go
View file

@ -240,7 +240,8 @@ func (th *tokenHandler) fetchToken(params map[string]string) (token *tokenRespon
defer resp.Body.Close()
if !client.SuccessStatus(resp.StatusCode) {
return nil, fmt.Errorf("token auth attempt for registry: %s request failed with status: %d %s", req.URL, resp.StatusCode, http.StatusText(resp.StatusCode))
err := client.HandleErrorResponse(resp)
return nil, err
}
decoder := json.NewDecoder(resp.Body)

2
registry/client/blob_writer.go
View file

@ -33,7 +33,7 @@ func (hbu *httpBlobUpload) handleErrorResponse(resp *http.Response) error {
if resp.StatusCode == http.StatusNotFound {
return distribution.ErrBlobUploadUnknown
}
return handleErrorResponse(resp)
return HandleErrorResponse(resp)
}
func (hbu *httpBlobUpload) ReadFrom(r io.Reader) (n int64, err error) {

6
registry/client/errors.go
View file

@ -47,7 +47,11 @@ func parseHTTPErrorResponse(r io.Reader) error {
return errors
}
func handleErrorResponse(resp *http.Response) error {
// HandleErrorResponse returns error parsed from HTTP response for an
// unsuccessful HTTP response code (in the range 400 - 499 inclusive). An
// UnexpectedHTTPStatusError returned for response code outside of expected
// range.
func HandleErrorResponse(resp *http.Response) error {
if resp.StatusCode == 401 {
err := parseHTTPErrorResponse(resp.Body)
if uErr, ok := err.(*UnexpectedHTTPResponseError); ok {

89
registry/client/errors_test.go Normal file
View file

@ -0,0 +1,89 @@
package client
import (
"bytes"
"io"
"net/http"
"strings"
"testing"
)
type nopCloser struct {
io.Reader
}
func (nopCloser) Close() error { return nil }
func TestHandleErrorResponse401ValidBody(t *testing.T) {
json := "{\"errors\":[{\"code\":\"UNAUTHORIZED\",\"message\":\"action requires authentication\"}]}"
response := &http.Response{
Status: "401 Unauthorized",
StatusCode: 401,
Body: nopCloser{bytes.NewBufferString(json)},
}
err := HandleErrorResponse(response)
expectedMsg := "unauthorized: action requires authentication"
if !strings.Contains(err.Error(), expectedMsg) {
t.Errorf("Expected \"%s\", got: \"%s\"", expectedMsg, err.Error())
}
}
func TestHandleErrorResponse401WithInvalidBody(t *testing.T) {
json := "{invalid json}"
response := &http.Response{
Status: "401 Unauthorized",
StatusCode: 401,
Body: nopCloser{bytes.NewBufferString(json)},
}
err := HandleErrorResponse(response)
expectedMsg := "unauthorized: authentication required"
if !strings.Contains(err.Error(), expectedMsg) {
t.Errorf("Expected \"%s\", got: \"%s\"", expectedMsg, err.Error())
}
}
func TestHandleErrorResponseExpectedStatusCode400ValidBody(t *testing.T) {
json := "{\"errors\":[{\"code\":\"DIGEST_INVALID\",\"message\":\"provided digest does not match\"}]}"
response := &http.Response{
Status: "400 Bad Request",
StatusCode: 400,
Body: nopCloser{bytes.NewBufferString(json)},
}
err := HandleErrorResponse(response)
expectedMsg := "digest invalid: provided digest does not match"
if !strings.Contains(err.Error(), expectedMsg) {
t.Errorf("Expected \"%s\", got: \"%s\"", expectedMsg, err.Error())
}
}
func TestHandleErrorResponseExpectedStatusCode404InvalidBody(t *testing.T) {
json := "{invalid json}"
response := &http.Response{
Status: "404 Not Found",
StatusCode: 404,
Body: nopCloser{bytes.NewBufferString(json)},
}
err := HandleErrorResponse(response)
expectedMsg := "Error parsing HTTP response: invalid character 'i' looking for beginning of object key string: \"{invalid json}\""
if !strings.Contains(err.Error(), expectedMsg) {
t.Errorf("Expected \"%s\", got: \"%s\"", expectedMsg, err.Error())
}
}
func TestHandleErrorResponseUnexpectedStatusCode501(t *testing.T) {
response := &http.Response{
Status: "501 Not Implemented",
StatusCode: 501,
Body: nopCloser{bytes.NewBufferString("{\"Error Encountered\" : \"Function not implemented.\"}")},
}
err := HandleErrorResponse(response)
expectedMsg := "Received unexpected HTTP status: 501 Not Implemented"
if !strings.Contains(err.Error(), expectedMsg) {
t.Errorf("Expected \"%s\", got: \"%s\"", expectedMsg, err.Error())
}
}

22
registry/client/repository.go
View file

@ -91,7 +91,7 @@ func (r *registry) Repositories(ctx context.Context, entries []string, last stri
returnErr = io.EOF
}
} else {
return 0, handleErrorResponse(resp)
return 0, HandleErrorResponse(resp)
}
return numFilled, returnErr
@ -203,7 +203,7 @@ func (t *tags) All(ctx context.Context) ([]string, error) {
tags = tagsResponse.Tags
return tags, nil
}
return tags, handleErrorResponse(resp)
return tags, HandleErrorResponse(resp)
}
func descriptorFromResponse(response *http.Response) (distribution.Descriptor, error) {
@ -276,7 +276,7 @@ check:
}
goto check
default:
return distribution.Descriptor{}, handleErrorResponse(resp)
return distribution.Descriptor{}, HandleErrorResponse(resp)
}
}
@ -315,7 +315,7 @@ func (ms *manifests) Exists(ctx context.Context, dgst digest.Digest) (bool, erro
} else if resp.StatusCode == http.StatusNotFound {
return false, nil
}
return false, handleErrorResponse(resp)
return false, HandleErrorResponse(resp)
}
// AddEtagToTag allows a client to supply an eTag to Get which will be
@ -395,7 +395,7 @@ func (ms *manifests) Get(ctx context.Context, dgst digest.Digest, options ...dis
}
return m, nil
}
return nil, handleErrorResponse(resp)
return nil, HandleErrorResponse(resp)
}
// WithTag allows a tag to be passed into Put which enables the client
@ -462,7 +462,7 @@ func (ms *manifests) Put(ctx context.Context, m distribution.Manifest, options .
return dgst, nil
}
return "", handleErrorResponse(resp)
return "", HandleErrorResponse(resp)
}
func (ms *manifests) Delete(ctx context.Context, dgst digest.Digest) error {
@ -484,7 +484,7 @@ func (ms *manifests) Delete(ctx context.Context, dgst digest.Digest) error {
if SuccessStatus(resp.StatusCode) {
return nil
}
return handleErrorResponse(resp)
return HandleErrorResponse(resp)
}
// todo(richardscothern): Restore interface and implementation with merge of #1050
@ -541,7 +541,7 @@ func (bs *blobs) Open(ctx context.Context, dgst digest.Digest) (distribution.Rea
if resp.StatusCode == http.StatusNotFound {
return distribution.ErrBlobUnknown
}
return handleErrorResponse(resp)
return HandleErrorResponse(resp)
}), nil
}
@ -597,7 +597,7 @@ func (bs *blobs) Create(ctx context.Context) (distribution.BlobWriter, error) {
location: location,
}, nil
}
return nil, handleErrorResponse(resp)
return nil, HandleErrorResponse(resp)
}
func (bs *blobs) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) {
@ -645,7 +645,7 @@ func (bs *blobStatter) Stat(ctx context.Context, dgst digest.Digest) (distributi
} else if resp.StatusCode == http.StatusNotFound {
return distribution.Descriptor{}, distribution.ErrBlobUnknown
}
return distribution.Descriptor{}, handleErrorResponse(resp)
return distribution.Descriptor{}, HandleErrorResponse(resp)
}
func buildCatalogValues(maxEntries int, last string) url.Values {
@ -682,7 +682,7 @@ func (bs *blobStatter) Clear(ctx context.Context, dgst digest.Digest) error {
if SuccessStatus(resp.StatusCode) {
return nil
}
return handleErrorResponse(resp)
return HandleErrorResponse(resp)
}
func (bs *blobStatter) SetDescriptor(ctx context.Context, dgst digest.Digest, desc distribution.Descriptor) error {