46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
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package varsig
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// Options define customization when creating a new Varsig.
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type Options struct {
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forceVersion0 bool
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signature []byte
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}
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func newOptions(opts ...Option) *Options {
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o := &Options{}
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for _, opt := range opts {
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opt(o)
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}
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return o
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}
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// ForceVersion0 returns a boolean indicating that a Varsig < v1 should
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// be created (which means the encoded Varsig won't have a version field
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// and might contain the signature bytes as the last field.)
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func (o *Options) ForceVersion0() bool {
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return o.forceVersion0
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}
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// Signature returns the optional signature bytes when creating a Varsig
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// < v1.
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func (o *Options) Signature() []byte {
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return o.signature
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}
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// Option is a function that alters the default behavior of constructors
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// that produce implementations of the Varsig type.
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type Option func(*Options)
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// WithForceVersion0 indicates that a Varsig < v1 should be produced. If
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// the signature is a) not nil, b) not empty and c) the correct length
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// based on the signing algorithm or signing key, the signature's bytes
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// will be appended to the encoded Varsig.
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func WithForceVersion0(signature []byte) Option {
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return func(o *Options) {
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o.forceVersion0 = true
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o.signature = signature
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}
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}
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