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53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
/*
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Copyright 2020 The Flux authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package flags
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import (
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"fmt"
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"strings"
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)
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var supportedPublicKeyAlgorithms = []string{"rsa", "ecdsa", "ed25519"}
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type PublicKeyAlgorithm string
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func (a *PublicKeyAlgorithm) String() string {
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return string(*a)
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}
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func (a *PublicKeyAlgorithm) Set(str string) error {
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if strings.TrimSpace(str) == "" {
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return fmt.Errorf("no public key algorithm given, must be one of: %s",
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strings.Join(supportedPublicKeyAlgorithms, ", "))
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}
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for _, v := range supportedPublicKeyAlgorithms {
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if str == v {
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*a = PublicKeyAlgorithm(str)
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return nil
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}
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}
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return fmt.Errorf("unsupported public key algorithm '%s', must be one of: %s",
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str, strings.Join(supportedPublicKeyAlgorithms, ", "))
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}
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func (a *PublicKeyAlgorithm) Type() string {
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return strings.Join(supportedPublicKeyAlgorithms, "|")
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}
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func (a *PublicKeyAlgorithm) Description() string {
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return fmt.Sprintf("SSH public key algorithm (%s)", strings.Join(supportedPublicKeyAlgorithms, ", "))
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}
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