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ee7f818674
* implement SASL OAUTHBEARER and draft/bearer * Upgrade JWT lib * Fix an edge case in SASL EXTERNAL * Accept longer SASL responses * review fix: allow multiple token definitions * enhance tests * use SASL utilities from irc-go * test expired tokens
63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
// Copyright (c) 2020 Daniel Oaks <daniel@danieloaks.net>
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// Copyright (c) 2020 Shivaram Lingamneni <slingamn@cs.stanford.edu>
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// released under the MIT license
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package jwt
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import (
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"crypto/rsa"
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"errors"
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"os"
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"time"
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jwt "github.com/golang-jwt/jwt/v5"
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)
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var (
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ErrNoKeys = errors.New("No EXTJWT signing keys are enabled")
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)
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type MapClaims jwt.MapClaims
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type JwtServiceConfig struct {
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Expiration time.Duration
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Secret string
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secretBytes []byte
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RSAPrivateKeyFile string `yaml:"rsa-private-key-file"`
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rsaPrivateKey *rsa.PrivateKey
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}
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func (t *JwtServiceConfig) Postprocess() (err error) {
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t.secretBytes = []byte(t.Secret)
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t.Secret = ""
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if t.RSAPrivateKeyFile != "" {
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keyBytes, err := os.ReadFile(t.RSAPrivateKeyFile)
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if err != nil {
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return err
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}
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t.rsaPrivateKey, err = jwt.ParseRSAPrivateKeyFromPEM(keyBytes)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (t *JwtServiceConfig) Enabled() bool {
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return t.Expiration != 0 && (len(t.secretBytes) != 0 || t.rsaPrivateKey != nil)
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}
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func (t *JwtServiceConfig) Sign(claims MapClaims) (result string, err error) {
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claims["exp"] = time.Now().Unix() + int64(t.Expiration/time.Second)
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if t.rsaPrivateKey != nil {
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token := jwt.NewWithClaims(jwt.SigningMethodRS256, jwt.MapClaims(claims))
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return token.SignedString(t.rsaPrivateKey)
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} else if len(t.secretBytes) != 0 {
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims(claims))
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return token.SignedString(t.secretBytes)
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} else {
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return "", ErrNoKeys
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}
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}
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