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zeekayandHanzo Dev
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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// SPDX-License-Identifier: MIT
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package asymkey
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import (
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"context"
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"fmt"
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"github.com/hanzoai/git/models/db"
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"golang.org/x/crypto/ssh"
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"github.com/hanzoai/builder"
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)
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// The database is used in checkKeyFingerprint. However, most of these functions probably belong in a module
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// checkKeyFingerprint only checks if key fingerprint has been used as a public key,
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// it is OK to use same key as deploy key for multiple repositories/users.
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func checkKeyFingerprint(ctx context.Context, fingerprint string) error {
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has, err := db.Exist[PublicKey](ctx, builder.Eq{"fingerprint": fingerprint})
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if err != nil {
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return err
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} else if has {
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return ErrKeyAlreadyExist{0, fingerprint, ""}
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}
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return nil
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}
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func calcFingerprintNative(publicKeyContent string) (string, error) {
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// Calculate fingerprint.
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pk, _, _, _, err := ssh.ParseAuthorizedKey([]byte(publicKeyContent))
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if err != nil {
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return "", err
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}
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return ssh.FingerprintSHA256(pk), nil
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}
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// CalcFingerprint calculate public key's fingerprint
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func CalcFingerprint(publicKeyContent string) (string, error) {
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fp, err := calcFingerprintNative(publicKeyContent)
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if err != nil {
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if IsErrKeyUnableVerify(err) {
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return "", err
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}
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return "", fmt.Errorf("CalcFingerprint: %w", err)
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}
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return fp, nil
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}
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