dendrite/cmd/dendrite-demo-pinecone/monolith/keys.go

64 lines
2.0 KiB
Go

// Copyright 2023 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package monolith
import (
"crypto/ed25519"
"os"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/test"
)
func GetOrCreateKey(keyfile string, oldKeyfile string) (ed25519.PrivateKey, ed25519.PublicKey) {
var sk ed25519.PrivateKey
var pk ed25519.PublicKey
if _, err := os.Stat(keyfile); os.IsNotExist(err) {
if _, err = os.Stat(oldKeyfile); os.IsNotExist(err) {
if err = test.NewMatrixKey(keyfile); err != nil {
panic("failed to generate a new PEM key: " + err.Error())
}
if _, sk, err = config.LoadMatrixKey(keyfile, os.ReadFile); err != nil {
panic("failed to load PEM key: " + err.Error())
}
if len(sk) != ed25519.PrivateKeySize {
panic("the private key is not long enough")
}
} else {
if sk, err = os.ReadFile(oldKeyfile); err != nil {
panic("failed to read the old private key: " + err.Error())
}
if len(sk) != ed25519.PrivateKeySize {
panic("the private key is not long enough")
}
if err = test.SaveMatrixKey(keyfile, sk); err != nil {
panic("failed to convert the private key to PEM format: " + err.Error())
}
}
} else {
if _, sk, err = config.LoadMatrixKey(keyfile, os.ReadFile); err != nil {
panic("failed to load PEM key: " + err.Error())
}
if len(sk) != ed25519.PrivateKeySize {
panic("the private key is not long enough")
}
}
pk = sk.Public().(ed25519.PublicKey)
return sk, pk
}