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plugin: return error var

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For conveniently going through multiple identities to find which ones we
can handle.
This commit is contained in:
Daniel Lublin 2023-06-28 11:06:16 +02:00
parent 3d91014ea0
commit 839abf2df6
1 changed files with 4 additions and 1 deletions
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5
plugin/encode.go
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@ -5,12 +5,15 @@
package plugin
import (
"errors"
"fmt"
"strings"
"filippo.io/age/internal/bech32"
)
var ErrNonPluginIdentity = errors.New("not a plugin identity")
// EncodeIdentity encodes a plugin identity string for a plugin with the given
// name. If the name is invalid, it returns an empty string.
func EncodeIdentity(name string, data []byte) string {
@ -29,7 +32,7 @@ func ParseIdentity(s string) (name string, data []byte, err error) {
return "", nil, fmt.Errorf("invalid identity encoding: %v", err)
}
if !strings.HasPrefix(hrp, "AGE-PLUGIN-") || !strings.HasSuffix(hrp, "-") {
return "", nil, fmt.Errorf("not a plugin identity: %v", err)
return "", nil, ErrNonPluginIdentity
}
name = strings.TrimSuffix(strings.TrimPrefix(hrp, "AGE-PLUGIN-"), "-")
name = strings.ToLower(name)