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policy_config_sigstore.go
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policy_config_sigstore.go
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package signature
import (
"encoding/json"
"errors"
"fmt"
"github.com/containers/image/v5/signature/internal"
)
// PRSigstoreSignedOption is way to pass values to NewPRSigstoreSigned
type PRSigstoreSignedOption func(*prSigstoreSigned) error
// PRSigstoreSignedWithKeyPath specifies a value for the "keyPath" field when calling NewPRSigstoreSigned.
func PRSigstoreSignedWithKeyPath(keyPath string) PRSigstoreSignedOption {
return func(pr *prSigstoreSigned) error {
if pr.KeyPath != "" {
return errors.New(`"keyPath" already specified`)
}
pr.KeyPath = keyPath
return nil
}
}
// PRSigstoreSignedWithKeyData specifies a value for the "keyData" field when calling NewPRSigstoreSigned.
func PRSigstoreSignedWithKeyData(keyData []byte) PRSigstoreSignedOption {
return func(pr *prSigstoreSigned) error {
if pr.KeyData != nil {
return errors.New(`"keyData" already specified`)
}
pr.KeyData = keyData
return nil
}
}
// PRSigstoreSignedWithFulcio specifies a value for the "fulcio" field when calling NewPRSigstoreSigned.
func PRSigstoreSignedWithFulcio(fulcio PRSigstoreSignedFulcio) PRSigstoreSignedOption {
return func(pr *prSigstoreSigned) error {
if pr.Fulcio != nil {
return errors.New(`"fulcio" already specified`)
}
pr.Fulcio = fulcio
return nil
}
}
// PRSigstoreSignedWithRekorPublicKeyPath specifies a value for the "rekorPublicKeyPath" field when calling NewPRSigstoreSigned.
func PRSigstoreSignedWithRekorPublicKeyPath(rekorPublicKeyPath string) PRSigstoreSignedOption {
return func(pr *prSigstoreSigned) error {
if pr.RekorPublicKeyPath != "" {
return errors.New(`"rekorPublicKeyPath" already specified`)
}
pr.RekorPublicKeyPath = rekorPublicKeyPath
return nil
}
}
// PRSigstoreSignedWithRekorPublicKeyData specifies a value for the "rekorPublicKeyData" field when calling NewPRSigstoreSigned.
func PRSigstoreSignedWithRekorPublicKeyData(rekorPublicKeyData []byte) PRSigstoreSignedOption {
return func(pr *prSigstoreSigned) error {
if pr.RekorPublicKeyData != nil {
return errors.New(`"rekorPublicKeyData" already specified`)
}
pr.RekorPublicKeyData = rekorPublicKeyData
return nil
}
}
// PRSigstoreSignedWithSignedIdentity specifies a value for the "signedIdentity" field when calling NewPRSigstoreSigned.
func PRSigstoreSignedWithSignedIdentity(signedIdentity PolicyReferenceMatch) PRSigstoreSignedOption {
return func(pr *prSigstoreSigned) error {
if pr.SignedIdentity != nil {
return errors.New(`"signedIdentity" already specified`)
}
pr.SignedIdentity = signedIdentity
return nil
}
}
// newPRSigstoreSigned is NewPRSigstoreSigned, except it returns the private type.
func newPRSigstoreSigned(options ...PRSigstoreSignedOption) (*prSigstoreSigned, error) {
res := prSigstoreSigned{
prCommon: prCommon{Type: prTypeSigstoreSigned},
}
for _, o := range options {
if err := o(&res); err != nil {
return nil, err
}
}
keySources := 0
if res.KeyPath != "" {
keySources++
}
if res.KeyData != nil {
keySources++
}
if res.Fulcio != nil {
keySources++
}
if keySources != 1 {
return nil, InvalidPolicyFormatError("exactly one of keyPath, keyData and fulcio must be specified")
}
if res.RekorPublicKeyPath != "" && res.RekorPublicKeyData != nil {
return nil, InvalidPolicyFormatError("rekorPublickeyType and rekorPublickeyData cannot be used simultaneously")
}
if res.Fulcio != nil && res.RekorPublicKeyPath == "" && res.RekorPublicKeyData == nil {
return nil, InvalidPolicyFormatError("At least one of RekorPublickeyPath and RekorPublickeyData must be specified if fulcio is used")
}
if res.SignedIdentity == nil {
return nil, InvalidPolicyFormatError("signedIdentity not specified")
}
return &res, nil
}
// NewPRSigstoreSigned returns a new "sigstoreSigned" PolicyRequirement based on options.
func NewPRSigstoreSigned(options ...PRSigstoreSignedOption) (PolicyRequirement, error) {
return newPRSigstoreSigned(options...)
}
// NewPRSigstoreSignedKeyPath returns a new "sigstoreSigned" PolicyRequirement using a KeyPath
func NewPRSigstoreSignedKeyPath(keyPath string, signedIdentity PolicyReferenceMatch) (PolicyRequirement, error) {
return NewPRSigstoreSigned(
PRSigstoreSignedWithKeyPath(keyPath),
PRSigstoreSignedWithSignedIdentity(signedIdentity),
)
}
// NewPRSigstoreSignedKeyData returns a new "sigstoreSigned" PolicyRequirement using a KeyData
func NewPRSigstoreSignedKeyData(keyData []byte, signedIdentity PolicyReferenceMatch) (PolicyRequirement, error) {
return NewPRSigstoreSigned(
PRSigstoreSignedWithKeyData(keyData),
PRSigstoreSignedWithSignedIdentity(signedIdentity),
)
}
// Compile-time check that prSigstoreSigned implements json.Unmarshaler.
var _ json.Unmarshaler = (*prSigstoreSigned)(nil)
// UnmarshalJSON implements the json.Unmarshaler interface.
func (pr *prSigstoreSigned) UnmarshalJSON(data []byte) error {
*pr = prSigstoreSigned{}
var tmp prSigstoreSigned
var gotKeyPath, gotKeyData, gotFulcio, gotRekorPublicKeyPath, gotRekorPublicKeyData bool
var fulcio prSigstoreSignedFulcio
var signedIdentity json.RawMessage
if err := internal.ParanoidUnmarshalJSONObject(data, func(key string) any {
switch key {
case "type":
return &tmp.Type
case "keyPath":
gotKeyPath = true
return &tmp.KeyPath
case "keyData":
gotKeyData = true
return &tmp.KeyData
case "fulcio":
gotFulcio = true
return &fulcio
case "rekorPublicKeyPath":
gotRekorPublicKeyPath = true
return &tmp.RekorPublicKeyPath
case "rekorPublicKeyData":
gotRekorPublicKeyData = true
return &tmp.RekorPublicKeyData
case "signedIdentity":
return &signedIdentity
default:
return nil
}
}); err != nil {
return err
}
if tmp.Type != prTypeSigstoreSigned {
return InvalidPolicyFormatError(fmt.Sprintf("Unexpected policy requirement type \"%s\"", tmp.Type))
}
if signedIdentity == nil {
tmp.SignedIdentity = NewPRMMatchRepoDigestOrExact()
} else {
si, err := newPolicyReferenceMatchFromJSON(signedIdentity)
if err != nil {
return err
}
tmp.SignedIdentity = si
}
var opts []PRSigstoreSignedOption
if gotKeyPath {
opts = append(opts, PRSigstoreSignedWithKeyPath(tmp.KeyPath))
}
if gotKeyData {
opts = append(opts, PRSigstoreSignedWithKeyData(tmp.KeyData))
}
if gotFulcio {
opts = append(opts, PRSigstoreSignedWithFulcio(&fulcio))
}
if gotRekorPublicKeyPath {
opts = append(opts, PRSigstoreSignedWithRekorPublicKeyPath(tmp.RekorPublicKeyPath))
}
if gotRekorPublicKeyData {
opts = append(opts, PRSigstoreSignedWithRekorPublicKeyData(tmp.RekorPublicKeyData))
}
opts = append(opts, PRSigstoreSignedWithSignedIdentity(tmp.SignedIdentity))
res, err := newPRSigstoreSigned(opts...)
if err != nil {
return err
}
*pr = *res
return nil
}
// PRSigstoreSignedFulcioOption is a way to pass values to NewPRSigstoreSignedFulcio
type PRSigstoreSignedFulcioOption func(*prSigstoreSignedFulcio) error
// PRSigstoreSignedFulcioWithCAPath specifies a value for the "caPath" field when calling NewPRSigstoreSignedFulcio
func PRSigstoreSignedFulcioWithCAPath(caPath string) PRSigstoreSignedFulcioOption {
return func(f *prSigstoreSignedFulcio) error {
if f.CAPath != "" {
return errors.New(`"caPath" already specified`)
}
f.CAPath = caPath
return nil
}
}
// PRSigstoreSignedFulcioWithCAData specifies a value for the "caData" field when calling NewPRSigstoreSignedFulcio
func PRSigstoreSignedFulcioWithCAData(caData []byte) PRSigstoreSignedFulcioOption {
return func(f *prSigstoreSignedFulcio) error {
if f.CAData != nil {
return errors.New(`"caData" already specified`)
}
f.CAData = caData
return nil
}
}
// PRSigstoreSignedFulcioWithOIDCIssuer specifies a value for the "oidcIssuer" field when calling NewPRSigstoreSignedFulcio
func PRSigstoreSignedFulcioWithOIDCIssuer(oidcIssuer string) PRSigstoreSignedFulcioOption {
return func(f *prSigstoreSignedFulcio) error {
if f.OIDCIssuer != "" {
return errors.New(`"oidcIssuer" already specified`)
}
f.OIDCIssuer = oidcIssuer
return nil
}
}
// PRSigstoreSignedFulcioWithSubjectEmail specifies a value for the "subjectEmail" field when calling NewPRSigstoreSignedFulcio
func PRSigstoreSignedFulcioWithSubjectEmail(subjectEmail string) PRSigstoreSignedFulcioOption {
return func(f *prSigstoreSignedFulcio) error {
if f.SubjectEmail != "" {
return errors.New(`"subjectEmail" already specified`)
}
f.SubjectEmail = subjectEmail
return nil
}
}
// newPRSigstoreSignedFulcio is NewPRSigstoreSignedFulcio, except it returns the private type
func newPRSigstoreSignedFulcio(options ...PRSigstoreSignedFulcioOption) (*prSigstoreSignedFulcio, error) {
res := prSigstoreSignedFulcio{}
for _, o := range options {
if err := o(&res); err != nil {
return nil, err
}
}
if res.CAPath != "" && res.CAData != nil {
return nil, InvalidPolicyFormatError("caPath and caData cannot be used simultaneously")
}
if res.CAPath == "" && res.CAData == nil {
return nil, InvalidPolicyFormatError("At least one of caPath and caData must be specified")
}
if res.OIDCIssuer == "" {
return nil, InvalidPolicyFormatError("oidcIssuer not specified")
}
if res.SubjectEmail == "" {
return nil, InvalidPolicyFormatError("subjectEmail not specified")
}
return &res, nil
}
// NewPRSigstoreSignedFulcio returns a PRSigstoreSignedFulcio based on options.
func NewPRSigstoreSignedFulcio(options ...PRSigstoreSignedFulcioOption) (PRSigstoreSignedFulcio, error) {
return newPRSigstoreSignedFulcio(options...)
}
// Compile-time check that prSigstoreSignedFulcio implements json.Unmarshaler.
var _ json.Unmarshaler = (*prSigstoreSignedFulcio)(nil)
func (f *prSigstoreSignedFulcio) UnmarshalJSON(data []byte) error {
*f = prSigstoreSignedFulcio{}
var tmp prSigstoreSignedFulcio
var gotCAPath, gotCAData, gotOIDCIssuer, gotSubjectEmail bool // = false...
if err := internal.ParanoidUnmarshalJSONObject(data, func(key string) any {
switch key {
case "caPath":
gotCAPath = true
return &tmp.CAPath
case "caData":
gotCAData = true
return &tmp.CAData
case "oidcIssuer":
gotOIDCIssuer = true
return &tmp.OIDCIssuer
case "subjectEmail":
gotSubjectEmail = true
return &tmp.SubjectEmail
default:
return nil
}
}); err != nil {
return err
}
var opts []PRSigstoreSignedFulcioOption
if gotCAPath {
opts = append(opts, PRSigstoreSignedFulcioWithCAPath(tmp.CAPath))
}
if gotCAData {
opts = append(opts, PRSigstoreSignedFulcioWithCAData(tmp.CAData))
}
if gotOIDCIssuer {
opts = append(opts, PRSigstoreSignedFulcioWithOIDCIssuer(tmp.OIDCIssuer))
}
if gotSubjectEmail {
opts = append(opts, PRSigstoreSignedFulcioWithSubjectEmail(tmp.SubjectEmail))
}
res, err := newPRSigstoreSignedFulcio(opts...)
if err != nil {
return err
}
*f = *res
return nil
}