func atomicUpdateHandler(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
gun := vars["imageName"]
s := ctx.Value("metaStore")
store, ok := s.(storage.MetaStore)
if !ok {
return errors.ErrNoStorage.WithDetail(nil)
}
cryptoServiceVal := ctx.Value("cryptoService")
cryptoService, ok := cryptoServiceVal.(signed.CryptoService)
if !ok {
return errors.ErrNoCryptoService.WithDetail(nil)
}
reader, err := r.MultipartReader()
if err != nil {
return errors.ErrMalformedUpload.WithDetail(nil)
}
var updates []storage.MetaUpdate
for {
part, err := reader.NextPart()
if err == io.EOF {
break
}
role := strings.TrimSuffix(part.FileName(), ".json")
if role == "" {
return errors.ErrNoFilename.WithDetail(nil)
} else if !data.ValidRole(role) {
return errors.ErrInvalidRole.WithDetail(role)
}
meta := &data.SignedMeta{}
var input []byte
inBuf := bytes.NewBuffer(input)
dec := json.NewDecoder(io.TeeReader(part, inBuf))
err = dec.Decode(meta)
if err != nil {
return errors.ErrMalformedJSON.WithDetail(nil)
}
version := meta.Signed.Version
updates = append(updates, storage.MetaUpdate{
Role: role,
Version: version,
Data: inBuf.Bytes(),
})
}
updates, err = validateUpdate(cryptoService, gun, updates, store)
if err != nil {
serializable, serializableError := validation.NewSerializableError(err)
if serializableError != nil {
return errors.ErrInvalidUpdate.WithDetail(nil)
}
return errors.ErrInvalidUpdate.WithDetail(serializable)
}
err = store.UpdateMany(gun, updates)
if err != nil {
return errors.ErrUpdating.WithDetail(nil)
}
return nil
}
// If it's a 400, translateStatusToError attempts to parse the body into
// an error. If successful (and a recognized error) that error is returned.
func TestTranslateErrorsParse400Errors(t *testing.T) {
origErr := validation.ErrBadRoot{Msg: "bad"}
serialObj, err := validation.NewSerializableError(origErr)
require.NoError(t, err)
serialization, err := json.Marshal(serialObj)
require.NoError(t, err)
errorBody := bytes.NewBuffer([]byte(fmt.Sprintf(
`{"errors": [{"otherstuff": "what", "detail": %s}]}`,
string(serialization))))
errorResp := http.Response{
StatusCode: http.StatusBadRequest,
Body: ioutil.NopCloser(errorBody),
}
finalError := translateStatusToError(&errorResp, "")
require.Equal(t, origErr, finalError)
}
func atomicUpdateHandler(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
gun := vars["imageName"]
s := ctx.Value("metaStore")
logger := ctxu.GetLoggerWithField(ctx, gun, "gun")
store, ok := s.(storage.MetaStore)
if !ok {
logger.Error("500 POST unable to retrieve storage")
return errors.ErrNoStorage.WithDetail(nil)
}
cryptoServiceVal := ctx.Value("cryptoService")
cryptoService, ok := cryptoServiceVal.(signed.CryptoService)
if !ok {
logger.Error("500 POST unable to retrieve signing service")
return errors.ErrNoCryptoService.WithDetail(nil)
}
reader, err := r.MultipartReader()
if err != nil {
return errors.ErrMalformedUpload.WithDetail(nil)
}
var updates []storage.MetaUpdate
for {
part, err := reader.NextPart()
if err == io.EOF {
break
}
role := strings.TrimSuffix(part.FileName(), ".json")
if role == "" {
return errors.ErrNoFilename.WithDetail(nil)
} else if !data.ValidRole(role) {
return errors.ErrInvalidRole.WithDetail(role)
}
meta := &data.SignedMeta{}
var input []byte
inBuf := bytes.NewBuffer(input)
dec := json.NewDecoder(io.TeeReader(part, inBuf))
err = dec.Decode(meta)
if err != nil {
return errors.ErrMalformedJSON.WithDetail(nil)
}
version := meta.Signed.Version
updates = append(updates, storage.MetaUpdate{
Role: role,
Version: version,
Data: inBuf.Bytes(),
})
}
updates, err = validateUpdate(cryptoService, gun, updates, store)
if err != nil {
serializable, serializableError := validation.NewSerializableError(err)
if serializableError != nil {
return errors.ErrInvalidUpdate.WithDetail(nil)
}
return errors.ErrInvalidUpdate.WithDetail(serializable)
}
err = store.UpdateMany(gun, updates)
if err != nil {
// If we have an old version error, surface to user with error code
if _, ok := err.(storage.ErrOldVersion); ok {
return errors.ErrOldVersion.WithDetail(err)
}
// More generic storage update error, possibly due to attempted rollback
logger.Errorf("500 POST error applying update request: %v", err)
return errors.ErrUpdating.WithDetail(nil)
}
return nil
}