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Use go method to calculate ssh key fingerprint (#7128)

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* Use go method to calculate key fingerprint

* add gitea copyright

* use native go method only for built-in server

* refactor and add tests

* add gitea copyright
This commit is contained in:
Antoine GIRARD
2019-06-16 09:50:46 +02:00
committed by zeripath
parent cf2221e3ac
commit 367aeb169a
2 changed files with 92 additions and 21 deletions
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31
models/ssh_key.go
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@ -1,4 +1,5 @@
// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
@ -359,7 +360,7 @@ func checkKeyFingerprint(e Engine, fingerprint string) error {
return nil
}
func calcFingerprint(publicKeyContent string) (string, error) {
func calcFingerprintSSHKeygen(publicKeyContent string) (string, error) {
// Calculate fingerprint.
tmpPath, err := writeTmpKeyFile(publicKeyContent)
if err != nil {
@ -375,6 +376,34 @@ func calcFingerprint(publicKeyContent string) (string, error) {
return strings.Split(stdout, " ")[1], nil
}
func calcFingerprintNative(publicKeyContent string) (string, error) {
// Calculate fingerprint.
pk, _, _, _, err := ssh.ParseAuthorizedKey([]byte(publicKeyContent))
if err != nil {
return "", err
}
return ssh.FingerprintSHA256(pk), nil
}
func calcFingerprint(publicKeyContent string) (string, error) {
//Call the method based on configuration
var (
fnName, fp string
err error
)
if setting.SSH.StartBuiltinServer {
fnName = "calcFingerprintNative"
fp, err = calcFingerprintNative(publicKeyContent)
} else {
fnName = "calcFingerprintSSHKeygen"
fp, err = calcFingerprintSSHKeygen(publicKeyContent)
}
if err != nil {
return "", fmt.Errorf("%s: %v", fnName, err)
}
return fp, nil
}
func addKey(e Engine, key *PublicKey) (err error) {
if len(key.Fingerprint) == 0 {
key.Fingerprint, err = calcFingerprint(key.Content)