drone-yaml/yaml/signature.go

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2019-02-10 19:00:16 +00:00
// Copyright 2019 Drone IO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
2019-01-22 23:44:17 +00:00
package yaml
import "errors"
type (
// Signature is a resource that provides an hmac
// signature of combined resources. This signature
// can be used to validate authenticity and prevent
// tampering.
Signature struct {
Version string `json:"version,omitempty"`
Kind string `json:"kind"`
Hmac string `json:"hmac"`
}
)
// GetVersion returns the resource version.
func (s *Signature) GetVersion() string { return s.Version }
// GetKind returns the resource kind.
func (s *Signature) GetKind() string { return s.Kind }
// Validate returns an error if the signature is invalid.
func (s Signature) Validate() error {
if s.Hmac == "" {
return errors.New("yaml: invalid signature. missing hash")
}
return nil
}