Files
dolt/integration-tests/go-sql-server-driver/genjwt_test.go

135 lines
3.1 KiB
Go

// Copyright 2022 Dolthub, Inc.
//
// 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 main
import (
"crypto"
"crypto/rand"
"crypto/rsa"
"encoding/json"
"fmt"
"os"
"path/filepath"
"time"
"github.com/google/uuid"
"gopkg.in/square/go-jose.v2"
"gopkg.in/square/go-jose.v2/jwt"
)
var sub = "test_user"
var iss = "dolthub.com"
var aud = "my_resource"
var onBehalfOf = "my_user"
// Generates a JWKS and a JWT for authenticating against it. Outputs it into
// files `|dir|/token.jwt` and `|dir|/test_jwks.json`.
//
// These files are used by sql-server-jwt-auth.yaml, for example.
func GenerateTestJWTs(dir string) error {
privKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return fmt.Errorf("could not generate rsa key: %w", err)
}
pubKey := privKey.Public()
kid, err := uuid.NewRandom()
if err != nil {
return fmt.Errorf("could not generate random uuid: %w", err)
}
err = writeJWKSToFile(dir, pubKey, kid.String())
if err != nil {
return fmt.Errorf("could not write jwks to file: %w", err)
}
jwt, err := generateJWT(privKey, kid.String())
if err != nil {
return fmt.Errorf("could not generate jwt: %w", err)
}
err = os.WriteFile(filepath.Join(dir, "token.jwt"), []byte(jwt), 0644)
if err != nil {
return fmt.Errorf("could not write jwt to file: %w", err)
}
return nil
}
func writeJWKSToFile(dir string, pubKey crypto.PublicKey, kid string) error {
jwk := jose.JSONWebKey{
KeyID: kid,
Key: pubKey,
Use: "sig",
Algorithm: "RS256",
}
jwks := jose.JSONWebKeySet{Keys: []jose.JSONWebKey{jwk}}
jwksjson, err := json.Marshal(jwks)
if err != nil {
return err
}
err = os.WriteFile(filepath.Join(dir, "test_jwks.json"), jwksjson, 0644)
if err != nil {
return err
}
return nil
}
func generateJWT(privKey *rsa.PrivateKey, kid string) (string, error) {
id, err := uuid.NewRandom()
if err != nil {
return "", err
}
now := time.Now()
claims := jwt.Claims{
ID: id.String(),
Audience: []string{aud},
Issuer: iss,
Subject: sub,
IssuedAt: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(364 * 24 * time.Hour)),
}
privClaims := struct {
OnBehalfOf string `json:"on_behalf_of"`
}{
onBehalfOf,
}
sig := jose.SigningKey{Algorithm: jose.RS256, Key: privKey}
opts := (&jose.SignerOptions{ExtraHeaders: map[jose.HeaderKey]interface{}{
"kid": kid,
}}).WithType("JWT")
signer, err := jose.NewSigner(sig, opts)
if err != nil {
return "", err
}
jwtBuilder := jwt.Signed(signer)
jwtBuilder = jwtBuilder.Claims(claims)
jwtBuilder = jwtBuilder.Claims(privClaims)
com, err := jwtBuilder.CompactSerialize()
if err != nil {
return "", err
}
return com, nil
}