43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
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// Copyright 2020 the Pinniped contributors. All Rights Reserved.
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// SPDX-License-Identifier: Apache-2.0
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// Package dynamiccodec provides a type that can encode information using a just-in-time signing and
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// (optionally) encryption secret.
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package dynamiccodec
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import (
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"github.com/gorilla/securecookie"
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"go.pinniped.dev/internal/oidc"
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)
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var _ oidc.Codec = &Codec{}
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// KeyFunc returns 2 keys: a required signing key, and an optional encryption key.
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type KeyFunc func() ([]byte, []byte)
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// Codec can dynamically encode and decode information by using a KeyFunc to get its keys
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// just-in-time.
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type Codec struct {
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keyFunc KeyFunc
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}
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// New creates a new Codec that will use the provided keyFunc for its key source.
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func New(keyFunc KeyFunc) *Codec {
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return &Codec{
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keyFunc: keyFunc,
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}
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}
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// Encode implements oidc.Encode().
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func (c *Codec) Encode(name string, value interface{}) (string, error) {
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signingKey, encryptionKey := c.keyFunc()
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return securecookie.New(signingKey, encryptionKey).Encode(name, value)
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}
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// Decode implements oidc.Decode().
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func (c *Codec) Decode(name string, value string, into interface{}) error {
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signingKey, encryptionKey := c.keyFunc()
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return securecookie.New(signingKey, encryptionKey).Decode(name, value, into)
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}
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