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// Copyright The Notary Project Authors.
// 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.
package plugin
import (
"reflect"
"time"
)
// VerifySignatureRequest contains the parameters passed in a verify-signature
// request.
type VerifySignatureRequest struct {
ContractVersion string `json:"contractVersion"`
Signature Signature `json:"signature"`
TrustPolicy TrustPolicy `json:"trustPolicy"`
PluginConfig map[string]string `json:"pluginConfig,omitempty"`
}
func (VerifySignatureRequest) Command() Command {
return CommandVerifySignature
}
// Validate validates VerifySignatureRequest struct
func (r VerifySignatureRequest) Validate() error {
if r.ContractVersion == "" {
return NewValidationError("contractVersion cannot be empty")
}
if reflect.DeepEqual(r.Signature, Signature{}) {
return NewValidationError("signature cannot be empty")
}
if reflect.DeepEqual(r.Signature.CriticalAttributes, CriticalAttributes{}) {
return NewValidationError("signature's criticalAttributes cannot be empty")
}
if r.Signature.CriticalAttributes.ContentType == "" {
return NewValidationError("signature's criticalAttributes's contentType cannot be empty")
}
if r.Signature.CriticalAttributes.SigningScheme == "" {
return NewValidationError("signature's criticalAttributes's signingScheme cannot be empty")
}
if len(r.Signature.CertificateChain) == 0 {
return NewValidationError("signature's criticalAttributes's certificateChain cannot be empty")
}
if reflect.DeepEqual(r.TrustPolicy, TrustPolicy{}) {
return NewValidationError("signature's trustPolicy cannot be empty")
}
if len(r.TrustPolicy.SignatureVerification) == 0 {
return NewValidationError("signature's trustPolicy's signatureVerification cannot be empty")
}
return nil
}
// Signature represents a signature pulled from the envelope
type Signature struct {
CriticalAttributes CriticalAttributes `json:"criticalAttributes"`
UnprocessedAttributes []string `json:"unprocessedAttributes"`
CertificateChain [][]byte `json:"certificateChain"`
}
// CriticalAttributes contains all critical attributes and
// their values in the signature envelope
type CriticalAttributes struct {
ContentType string `json:"contentType"`
SigningScheme string `json:"signingScheme"`
Expiry *time.Time `json:"expiry,omitempty"`
AuthenticSigningTime *time.Time `json:"authenticSigningTime,omitempty"`
ExtendedAttributes map[string]interface{} `json:"extendedAttributes,omitempty"`
}
// TrustPolicy represents trusted identities that sign the artifacts
type TrustPolicy struct {
TrustedIdentities []string `json:"trustedIdentities"`
SignatureVerification []Capability `json:"signatureVerification"`
}
// VerifySignatureResponse is the response of a verify-signature request.
type VerifySignatureResponse struct {
VerificationResults map[Capability]*VerificationResult `json:"verificationResults"`
ProcessedAttributes []interface{} `json:"processedAttributes"`
}
// VerificationResult is the result of a verification performed by the plugin
type VerificationResult struct {
Success bool `json:"success"`
Reason string `json:"reason,omitempty"`
}
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