mirror of
https://github.com/ClusterCockpit/cc-backend
synced 2024-09-20 11:27:26 +02:00
f817ac5240
If there is an external service like an AuthAPI that can generate JWTs and hand them over to ClusterCockpit via cookies, CC can be configured to accept them
82 lines
2.4 KiB
Go
82 lines
2.4 KiB
Go
// Copyright (C) 2022 Paderborn Center for Parallel Computing, Paderborn University
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// This code is released under MIT License:
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package main
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import (
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"crypto/ed25519"
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"crypto/x509"
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"encoding/base64"
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"encoding/pem"
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"fmt"
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"os"
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)
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func main() {
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filepath := ""
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if len(os.Args) > 1 {
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filepath = os.Args[1]
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} else {
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PrintUsage()
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os.Exit(1)
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}
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pubkey, err := LoadEd255519PubkeyFromPEMFile(filepath)
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if err != nil {
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fmt.Fprintf(os.Stderr, "error: %s\n", err.Error())
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os.Exit(1)
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}
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fmt.Fprintf(os.Stdout,
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"CROSS_LOGIN_JWT_PUBLIC_KEY=%#v\n",
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base64.StdEncoding.EncodeToString(pubkey))
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}
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// Loads an ed25519 public key stored in a file in PEM format
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func LoadEd255519PubkeyFromPEMFile(filePath string) (ed25519.PublicKey, error) {
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buffer, err := os.ReadFile(filePath)
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if err != nil {
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return nil, err
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}
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block, _ := pem.Decode(buffer)
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if block == nil {
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return nil, fmt.Errorf("no pem block found")
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}
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pubkey, err := x509.ParsePKIXPublicKey(block.Bytes)
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if err != nil {
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return nil, err
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}
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ed25519PublicKey, success := pubkey.(ed25519.PublicKey)
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if !success {
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return nil, fmt.Errorf("not an ed25519 key")
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}
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return ed25519PublicKey, nil
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}
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func PrintUsage() {
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fmt.Fprintf(os.Stderr, "Usage: %s <filename>\n", os.Args[0])
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fmt.Fprintf(os.Stderr, "where <filename> contains an Ed25519 public key in PEM format\n")
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fmt.Fprintf(os.Stderr, "(starting with '-----BEGIN PUBLIC KEY-----')\n")
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}
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