64 lines
2 KiB
Go
64 lines
2 KiB
Go
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// Copyright 2023 The Matrix.org Foundation C.I.C.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package keys
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import (
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"crypto/ed25519"
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"os"
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"github.com/matrix-org/dendrite/setup/config"
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"github.com/matrix-org/dendrite/test"
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)
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func GetOrCreateKey(keyfile string, oldKeyfile string) (ed25519.PrivateKey, ed25519.PublicKey) {
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var sk ed25519.PrivateKey
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var pk ed25519.PublicKey
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if _, err := os.Stat(keyfile); os.IsNotExist(err) {
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if _, err = os.Stat(oldKeyfile); os.IsNotExist(err) {
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if err = test.NewMatrixKey(keyfile); err != nil {
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panic("failed to generate a new PEM key: " + err.Error())
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}
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if _, sk, err = config.LoadMatrixKey(keyfile, os.ReadFile); err != nil {
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panic("failed to load PEM key: " + err.Error())
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}
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if len(sk) != ed25519.PrivateKeySize {
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panic("the private key is not long enough")
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}
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} else {
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if sk, err = os.ReadFile(oldKeyfile); err != nil {
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panic("failed to read the old private key: " + err.Error())
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}
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if len(sk) != ed25519.PrivateKeySize {
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panic("the private key is not long enough")
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}
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if err = test.SaveMatrixKey(keyfile, sk); err != nil {
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panic("failed to convert the private key to PEM format: " + err.Error())
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}
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}
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} else {
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if _, sk, err = config.LoadMatrixKey(keyfile, os.ReadFile); err != nil {
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panic("failed to load PEM key: " + err.Error())
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}
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if len(sk) != ed25519.PrivateKeySize {
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panic("the private key is not long enough")
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}
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}
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pk = sk.Public().(ed25519.PublicKey)
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return sk, pk
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}
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