// 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 }