Browse Source

Add asymmetric JWT signing (#16010)

* Added asymmetric token signing.

* Load signing key from settings.

* Added optional kid parameter.

* Updated documentation.

* Add "kid" to token header.
master
KN4CK3R 1 year ago
committed by GitHub
parent
commit
29695cd6d5
No known key found for this signature in database GPG Key ID: 4AEE18F83AFDEB23
  1. 2
      cmd/generate.go
  2. 4
      docs/content/doc/advanced/config-cheat-sheet.en-us.md
  3. 11
      docs/content/doc/developers/oauth2-provider.md
  4. 3
      models/oauth2.go
  5. 18
      models/oauth2_application.go
  6. 378
      modules/auth/oauth2/jwtsigningkey.go
  7. 19
      modules/generate/generate.go
  8. 2
      modules/setting/lfs.go
  9. 22
      modules/setting/setting.go
  10. 2
      routers/install/install.go
  11. 59
      routers/web/user/oauth.go
  12. 1
      routers/web/web.go
  13. 7
      templates/user/auth/oidc_wellknown.tmpl

2
cmd/generate.go

@ -71,7 +71,7 @@ func runGenerateInternalToken(c *cli.Context) error {
}
func runGenerateLfsJwtSecret(c *cli.Context) error {
JWTSecretBase64, err := generate.NewJwtSecret()
JWTSecretBase64, err := generate.NewJwtSecretBase64()
if err != nil {
return err
}

4
docs/content/doc/advanced/config-cheat-sheet.en-us.md

@ -858,7 +858,9 @@ NB: You must have `DISABLE_ROUTER_LOG` set to `false` for this option to take ef
- `ACCESS_TOKEN_EXPIRATION_TIME`: **3600**: Lifetime of an OAuth2 access token in seconds
- `REFRESH_TOKEN_EXPIRATION_TIME`: **730**: Lifetime of an OAuth2 refresh token in hours
- `INVALIDATE_REFRESH_TOKENS`: **false**: Check if refresh token has already been used
- `JWT_SECRET`: **\<empty\>**: OAuth2 authentication secret for access and refresh tokens, change this a unique string.
- `JWT_SIGNING_ALGORITHM`: **RS256**: Algorithm used to sign OAuth2 tokens. Valid values: \[`HS256`, `HS384`, `HS512`, `RS256`, `RS384`, `RS512`, `ES256`, `ES384`, `ES512`\]
- `JWT_SECRET`: **\<empty\>**: OAuth2 authentication secret for access and refresh tokens, change this to a unique string. This setting is only needed if `JWT_SIGNING_ALGORITHM` is set to `HS256`, `HS384` or `HS512`.
- `JWT_SIGNING_PRIVATE_KEY_FILE`: **jwt/private.pem**: Private key file path used to sign OAuth2 tokens. The path is relative to `CUSTOM_PATH`. This setting is only needed if `JWT_SIGNING_ALGORITHM` is set to `RS256`, `RS384`, `RS512`, `ES256`, `ES384` or `ES512`. The file must contain a RSA or ECDSA private key in the PKCS8 format.
- `MAX_TOKEN_LENGTH`: **32767**: Maximum length of token/cookie to accept from OAuth2 provider
## i18n (`i18n`)

11
docs/content/doc/developers/oauth2-provider.md

@ -23,10 +23,13 @@ Gitea supports acting as an OAuth2 provider to allow third party applications to
## Endpoints
| Endpoint | URL |
| ---------------------- | --------------------------- |
| Authorization Endpoint | `/login/oauth/authorize` |
| Access Token Endpoint | `/login/oauth/access_token` |
| Endpoint | URL |
| ------------------------ | ----------------------------------- |
| OpenID Connect Discovery | `/.well-known/openid-configuration` |
| Authorization Endpoint | `/login/oauth/authorize` |
| Access Token Endpoint | `/login/oauth/access_token` |
| OpenID Connect UserInfo | `/login/oauth/userinfo` |
| JSON Web Key Set | `/login/oauth/keys` |
## Supported OAuth2 Grants

3
models/oauth2.go

@ -132,6 +132,9 @@ func GetActiveOAuth2Providers() ([]string, map[string]OAuth2Provider, error) {
// InitOAuth2 initialize the OAuth2 lib and register all active OAuth2 providers in the library
func InitOAuth2() error {
if err := oauth2.InitSigningKey(); err != nil {
return err
}
if err := oauth2.Init(x); err != nil {
return err
}

18
models/oauth2_application.go

@ -12,8 +12,8 @@ import (
"strings"
"time"
"code.gitea.io/gitea/modules/auth/oauth2"
"code.gitea.io/gitea/modules/secret"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
@ -540,10 +540,10 @@ type OAuth2Token struct {
// ParseOAuth2Token parses a singed jwt string
func ParseOAuth2Token(jwtToken string) (*OAuth2Token, error) {
parsedToken, err := jwt.ParseWithClaims(jwtToken, &OAuth2Token{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
if token.Method == nil || token.Method.Alg() != oauth2.DefaultSigningKey.SigningMethod().Alg() {
return nil, fmt.Errorf("unexpected signing algo: %v", token.Header["alg"])
}
return setting.OAuth2.JWTSecretBytes, nil
return oauth2.DefaultSigningKey.VerifyKey(), nil
})
if err != nil {
return nil, err
@ -559,8 +559,9 @@ func ParseOAuth2Token(jwtToken string) (*OAuth2Token, error) {
// SignToken signs the token with the JWT secret
func (token *OAuth2Token) SignToken() (string, error) {
token.IssuedAt = time.Now().Unix()
jwtToken := jwt.NewWithClaims(jwt.SigningMethodHS512, token)
return jwtToken.SignedString(setting.OAuth2.JWTSecretBytes)
jwtToken := jwt.NewWithClaims(oauth2.DefaultSigningKey.SigningMethod(), token)
oauth2.DefaultSigningKey.PreProcessToken(jwtToken)
return jwtToken.SignedString(oauth2.DefaultSigningKey.SignKey())
}
// OIDCToken represents an OpenID Connect id_token
@ -583,8 +584,9 @@ type OIDCToken struct {
}
// SignToken signs an id_token with the (symmetric) client secret key
func (token *OIDCToken) SignToken(clientSecret string) (string, error) {
func (token *OIDCToken) SignToken(signingKey oauth2.JWTSigningKey) (string, error) {
token.IssuedAt = time.Now().Unix()
jwtToken := jwt.NewWithClaims(jwt.SigningMethodHS256, token)
return jwtToken.SignedString([]byte(clientSecret))
jwtToken := jwt.NewWithClaims(signingKey.SigningMethod(), token)
signingKey.PreProcessToken(jwtToken)
return jwtToken.SignedString(signingKey.SignKey())
}

378
modules/auth/oauth2/jwtsigningkey.go

@ -0,0 +1,378 @@
// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package oauth2
import (
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"crypto/sha256"
"crypto/x509"
"encoding/base64"
"encoding/pem"
"fmt"
"io/ioutil"
"math/big"
"os"
"path/filepath"
"strings"
"code.gitea.io/gitea/modules/generate"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/dgrijalva/jwt-go"
ini "gopkg.in/ini.v1"
)
// ErrInvalidAlgorithmType represents an invalid algorithm error.
type ErrInvalidAlgorithmType struct {
Algorightm string
}
func (err ErrInvalidAlgorithmType) Error() string {
return fmt.Sprintf("JWT signing algorithm is not supported: %s", err.Algorightm)
}
// JWTSigningKey represents a algorithm/key pair to sign JWTs
type JWTSigningKey interface {
IsSymmetric() bool
SigningMethod() jwt.SigningMethod
SignKey() interface{}
VerifyKey() interface{}
ToJWK() (map[string]string, error)
PreProcessToken(*jwt.Token)
}
type hmacSigningKey struct {
signingMethod jwt.SigningMethod
secret []byte
}
func (key hmacSigningKey) IsSymmetric() bool {
return true
}
func (key hmacSigningKey) SigningMethod() jwt.SigningMethod {
return key.signingMethod
}
func (key hmacSigningKey) SignKey() interface{} {
return key.secret
}
func (key hmacSigningKey) VerifyKey() interface{} {
return key.secret
}
func (key hmacSigningKey) ToJWK() (map[string]string, error) {
return map[string]string{
"kty": "oct",
"alg": key.SigningMethod().Alg(),
}, nil
}
func (key hmacSigningKey) PreProcessToken(*jwt.Token) {}
type rsaSingingKey struct {
signingMethod jwt.SigningMethod
key *rsa.PrivateKey
id string
}
func newRSASingingKey(signingMethod jwt.SigningMethod, key *rsa.PrivateKey) (rsaSingingKey, error) {
kid, err := createPublicKeyFingerprint(key.Public().(*rsa.PublicKey))
if err != nil {
return rsaSingingKey{}, err
}
return rsaSingingKey{
signingMethod,
key,
base64.RawURLEncoding.EncodeToString(kid),
}, nil
}
func (key rsaSingingKey) IsSymmetric() bool {
return false
}
func (key rsaSingingKey) SigningMethod() jwt.SigningMethod {
return key.signingMethod
}
func (key rsaSingingKey) SignKey() interface{} {
return key.key
}
func (key rsaSingingKey) VerifyKey() interface{} {
return key.key.Public()
}
func (key rsaSingingKey) ToJWK() (map[string]string, error) {
pubKey := key.key.Public().(*rsa.PublicKey)
return map[string]string{
"kty": "RSA",
"alg": key.SigningMethod().Alg(),
"kid": key.id,
"e": base64.RawURLEncoding.EncodeToString(big.NewInt(int64(pubKey.E)).Bytes()),
"n": base64.RawURLEncoding.EncodeToString(pubKey.N.Bytes()),
}, nil
}
func (key rsaSingingKey) PreProcessToken(token *jwt.Token) {
token.Header["kid"] = key.id
}
type ecdsaSingingKey struct {
signingMethod jwt.SigningMethod
key *ecdsa.PrivateKey
id string
}
func newECDSASingingKey(signingMethod jwt.SigningMethod, key *ecdsa.PrivateKey) (ecdsaSingingKey, error) {
kid, err := createPublicKeyFingerprint(key.Public().(*ecdsa.PublicKey))
if err != nil {
return ecdsaSingingKey{}, err
}
return ecdsaSingingKey{
signingMethod,
key,
base64.RawURLEncoding.EncodeToString(kid),
}, nil
}
func (key ecdsaSingingKey) IsSymmetric() bool {
return false
}
func (key ecdsaSingingKey) SigningMethod() jwt.SigningMethod {
return key.signingMethod
}
func (key ecdsaSingingKey) SignKey() interface{} {
return key.key
}
func (key ecdsaSingingKey) VerifyKey() interface{} {
return key.key.Public()
}
func (key ecdsaSingingKey) ToJWK() (map[string]string, error) {
pubKey := key.key.Public().(*ecdsa.PublicKey)
return map[string]string{
"kty": "EC",
"alg": key.SigningMethod().Alg(),
"kid": key.id,
"crv": pubKey.Params().Name,
"x": base64.RawURLEncoding.EncodeToString(pubKey.X.Bytes()),
"y": base64.RawURLEncoding.EncodeToString(pubKey.Y.Bytes()),
}, nil
}
func (key ecdsaSingingKey) PreProcessToken(token *jwt.Token) {
token.Header["kid"] = key.id
}
// createPublicKeyFingerprint creates a fingerprint of the given key.
// The fingerprint is the sha256 sum of the PKIX structure of the key.
func createPublicKeyFingerprint(key interface{}) ([]byte, error) {
bytes, err := x509.MarshalPKIXPublicKey(key)
if err != nil {
return nil, err
}
checksum := sha256.Sum256(bytes)
return checksum[:], nil
}
// CreateJWTSingingKey creates a signing key from an algorithm / key pair.
func CreateJWTSingingKey(algorithm string, key interface{}) (JWTSigningKey, error) {
var signingMethod jwt.SigningMethod
switch algorithm {
case "HS256":
signingMethod = jwt.SigningMethodHS256
case "HS384":
signingMethod = jwt.SigningMethodHS384
case "HS512":
signingMethod = jwt.SigningMethodHS512
case "RS256":
signingMethod = jwt.SigningMethodRS256
case "RS384":
signingMethod = jwt.SigningMethodRS384
case "RS512":
signingMethod = jwt.SigningMethodRS512
case "ES256":
signingMethod = jwt.SigningMethodES256
case "ES384":
signingMethod = jwt.SigningMethodES384
case "ES512":
signingMethod = jwt.SigningMethodES512
default:
return nil, ErrInvalidAlgorithmType{algorithm}
}
switch signingMethod.(type) {
case *jwt.SigningMethodECDSA:
privateKey, ok := key.(*ecdsa.PrivateKey)
if !ok {
return nil, jwt.ErrInvalidKeyType
}
return newECDSASingingKey(signingMethod, privateKey)
case *jwt.SigningMethodRSA:
privateKey, ok := key.(*rsa.PrivateKey)
if !ok {
return nil, jwt.ErrInvalidKeyType
}
return newRSASingingKey(signingMethod, privateKey)
default:
secret, ok := key.([]byte)
if !ok {
return nil, jwt.ErrInvalidKeyType
}
return hmacSigningKey{signingMethod, secret}, nil
}
}
// DefaultSigningKey is the default signing key for JWTs.
var DefaultSigningKey JWTSigningKey
// InitSigningKey creates the default signing key from settings or creates a random key.
func InitSigningKey() error {
var err error
var key interface{}
switch setting.OAuth2.JWTSigningAlgorithm {
case "HS256":
fallthrough
case "HS384":
fallthrough
case "HS512":
key, err = loadOrCreateSymmetricKey()
case "RS256":
fallthrough
case "RS384":
fallthrough
case "RS512":
fallthrough
case "ES256":
fallthrough
case "ES384":
fallthrough
case "ES512":
key, err = loadOrCreateAsymmetricKey()
default:
return ErrInvalidAlgorithmType{setting.OAuth2.JWTSigningAlgorithm}
}
if err != nil {
return fmt.Errorf("Error while loading or creating symmetric key: %v", err)
}
signingKey, err := CreateJWTSingingKey(setting.OAuth2.JWTSigningAlgorithm, key)
if err != nil {
return err
}
DefaultSigningKey = signingKey
return nil
}
// loadOrCreateSymmetricKey checks if the configured secret is valid.
// If it is not valid a new secret is created and saved in the configuration file.
func loadOrCreateSymmetricKey() (interface{}, error) {
key := make([]byte, 32)
n, err := base64.RawURLEncoding.Decode(key, []byte(setting.OAuth2.JWTSecretBase64))
if err != nil || n != 32 {
key, err = generate.NewJwtSecret()
if err != nil {
log.Fatal("error generating JWT secret: %v", err)
return nil, err
}
setting.CreateOrAppendToCustomConf(func(cfg *ini.File) {
secretBase64 := base64.RawURLEncoding.EncodeToString(key)
cfg.Section("oauth2").Key("JWT_SECRET").SetValue(secretBase64)
})
}
return key, nil
}
// loadOrCreateAsymmetricKey checks if the configured private key exists.
// If it does not exist a new random key gets generated and saved on the configured path.
func loadOrCreateAsymmetricKey() (interface{}, error) {
keyPath := setting.OAuth2.JWTSigningPrivateKeyFile
isExist, err := util.IsExist(keyPath)
if err != nil {
log.Fatal("Unable to check if %s exists. Error: %v", keyPath, err)
}
if !isExist {
err := func() error {
key, err := func() (interface{}, error) {
if strings.HasPrefix(setting.OAuth2.JWTSigningAlgorithm, "RS") {
return rsa.GenerateKey(rand.Reader, 4096)
}
return ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
}()
if err != nil {
return err
}
bytes, err := x509.MarshalPKCS8PrivateKey(key)
if err != nil {
return err
}
privateKeyPEM := &pem.Block{Type: "PRIVATE KEY", Bytes: bytes}
if err := os.MkdirAll(filepath.Dir(keyPath), os.ModePerm); err != nil {
return err
}
f, err := os.OpenFile(keyPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
return err
}
defer func() {
if err = f.Close(); err != nil {
log.Error("Close: %v", err)
}
}()
return pem.Encode(f, privateKeyPEM)
}()
if err != nil {
log.Fatal("Error generating private key: %v", err)
return nil, err
}
}
bytes, err := ioutil.ReadFile(keyPath)
if err != nil {
return nil, err
}
block, _ := pem.Decode(bytes)
if block == nil {
return nil, fmt.Errorf("no valid PEM data found in %s", keyPath)
} else if block.Type != "PRIVATE KEY" {
return nil, fmt.Errorf("expected PRIVATE KEY, got %s in %s", block.Type, keyPath)
}
return x509.ParsePKCS8PrivateKey(block.Bytes)
}

19
modules/generate/generate.go

@ -38,14 +38,23 @@ func NewInternalToken() (string, error) {
return internalToken, nil
}
// NewJwtSecret generate a new value intended to be used by LFS_JWT_SECRET.
func NewJwtSecret() (string, error) {
JWTSecretBytes := make([]byte, 32)
_, err := io.ReadFull(rand.Reader, JWTSecretBytes)
// NewJwtSecret generates a new value intended to be used for JWT secrets.
func NewJwtSecret() ([]byte, error) {
bytes := make([]byte, 32)
_, err := io.ReadFull(rand.Reader, bytes)
if err != nil {
return nil, err
}
return bytes, nil
}
// NewJwtSecretBase64 generates a new base64 encoded value intended to be used for JWT secrets.
func NewJwtSecretBase64() (string, error) {
bytes, err := NewJwtSecret()
if err != nil {
return "", err
}
return base64.RawURLEncoding.EncodeToString(JWTSecretBytes), nil
return base64.RawURLEncoding.EncodeToString(bytes), nil
}
// NewSecretKey generate a new value intended to be used by SECRET_KEY.

2
modules/setting/lfs.go

@ -54,7 +54,7 @@ func newLFSService() {
n, err := base64.RawURLEncoding.Decode(LFS.JWTSecretBytes, []byte(LFS.JWTSecretBase64))
if err != nil || n != 32 {
LFS.JWTSecretBase64, err = generate.NewJwtSecret()
LFS.JWTSecretBase64, err = generate.NewJwtSecretBase64()
if err != nil {
log.Fatal("Error generating JWT Secret for custom config: %v", err)
return

22
modules/setting/setting.go

@ -371,14 +371,17 @@ var (
AccessTokenExpirationTime int64
RefreshTokenExpirationTime int64
InvalidateRefreshTokens bool
JWTSecretBytes []byte `ini:"-"`
JWTSigningAlgorithm string `ini:"JWT_SIGNING_ALGORITHM"`
JWTSecretBase64 string `ini:"JWT_SECRET"`
JWTSigningPrivateKeyFile string `ini:"JWT_SIGNING_PRIVATE_KEY_FILE"`
MaxTokenLength int
}{
Enable: true,
AccessTokenExpirationTime: 3600,
RefreshTokenExpirationTime: 730,
InvalidateRefreshTokens: false,
JWTSigningAlgorithm: "RS256",
JWTSigningPrivateKeyFile: "jwt/private.pem",
MaxTokenLength: math.MaxInt16,
}
@ -801,21 +804,8 @@ func NewContext() {
return
}
if OAuth2.Enable {
OAuth2.JWTSecretBytes = make([]byte, 32)
n, err := base64.RawURLEncoding.Decode(OAuth2.JWTSecretBytes, []byte(OAuth2.JWTSecretBase64))
if err != nil || n != 32 {
OAuth2.JWTSecretBase64, err = generate.NewJwtSecret()
if err != nil {
log.Fatal("error generating JWT secret: %v", err)
return
}
CreateOrAppendToCustomConf(func(cfg *ini.File) {
cfg.Section("oauth2").Key("JWT_SECRET").SetValue(OAuth2.JWTSecretBase64)
})
}
if !filepath.IsAbs(OAuth2.JWTSigningPrivateKeyFile) {
OAuth2.JWTSigningPrivateKeyFile = filepath.Join(CustomPath, OAuth2.JWTSigningPrivateKeyFile)
}
sec = Cfg.Section("admin")

2
routers/install/install.go

@ -343,7 +343,7 @@ func SubmitInstall(ctx *context.Context) {
cfg.Section("server").Key("LFS_START_SERVER").SetValue("true")
cfg.Section("server").Key("LFS_CONTENT_PATH").SetValue(form.LFSRootPath)
var secretKey string
if secretKey, err = generate.NewJwtSecret(); err != nil {
if secretKey, err = generate.NewJwtSecretBase64(); err != nil {
ctx.RenderWithErr(ctx.Tr("install.lfs_jwt_secret_failed", err), tplInstall, &form)
return
}

59
routers/web/user/oauth.go

@ -13,6 +13,7 @@ import (
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/auth/oauth2"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
@ -24,6 +25,7 @@ import (
"gitea.com/go-chi/binding"
"github.com/dgrijalva/jwt-go"
jsoniter "github.com/json-iterator/go"
)
const (
@ -131,7 +133,7 @@ type AccessTokenResponse struct {
IDToken string `json:"id_token,omitempty"`
}
func newAccessTokenResponse(grant *models.OAuth2Grant, clientSecret string) (*AccessTokenResponse, *AccessTokenError) {
func newAccessTokenResponse(grant *models.OAuth2Grant, signingKey oauth2.JWTSigningKey) (*AccessTokenResponse, *AccessTokenError) {
if setting.OAuth2.InvalidateRefreshTokens {
if err := grant.IncreaseCounter(); err != nil {
return nil, &AccessTokenError{
@ -223,7 +225,7 @@ func newAccessTokenResponse(grant *models.OAuth2Grant, clientSecret string) (*Ac
idToken.EmailVerified = app.User.IsActive
}
signedIDToken, err = idToken.SignToken(clientSecret)
signedIDToken, err = idToken.SignToken(signingKey)
if err != nil {
return nil, &AccessTokenError{
ErrorCode: AccessTokenErrorCodeInvalidRequest,
@ -480,12 +482,37 @@ func GrantApplicationOAuth(ctx *context.Context) {
func OIDCWellKnown(ctx *context.Context) {
t := ctx.Render.TemplateLookup("user/auth/oidc_wellknown")
ctx.Resp.Header().Set("Content-Type", "application/json")
ctx.Data["SigningKey"] = oauth2.DefaultSigningKey
if err := t.Execute(ctx.Resp, ctx.Data); err != nil {
log.Error("%v", err)
ctx.Error(http.StatusInternalServerError)
}
}
// OIDCKeys generates the JSON Web Key Set
func OIDCKeys(ctx *context.Context) {
jwk, err := oauth2.DefaultSigningKey.ToJWK()
if err != nil {
log.Error("Error converting signing key to JWK: %v", err)
ctx.Error(http.StatusInternalServerError)
return
}
jwk["use"] = "sig"
jwks := map[string][]map[string]string{
"keys": {
jwk,
},
}
ctx.Resp.Header().Set("Content-Type", "application/json")
enc := jsoniter.NewEncoder(ctx.Resp)
if err := enc.Encode(jwks); err != nil {
log.Error("Failed to encode representation as json. Error: %v", err)
}
}
// AccessTokenOAuth manages all access token requests by the client
func AccessTokenOAuth(ctx *context.Context) {
form := *web.GetForm(ctx).(*forms.AccessTokenForm)
@ -513,13 +540,25 @@ func AccessTokenOAuth(ctx *context.Context) {
form.ClientSecret = pair[1]
}
}
signingKey := oauth2.DefaultSigningKey
if signingKey.IsSymmetric() {
clientKey, err := oauth2.CreateJWTSingingKey(signingKey.SigningMethod().Alg(), []byte(form.ClientSecret))
if err != nil {
handleAccessTokenError(ctx, AccessTokenError{
ErrorCode: AccessTokenErrorCodeInvalidRequest,
ErrorDescription: "Error creating signing key",
})
return
}
signingKey = clientKey
}
switch form.GrantType {
case "refresh_token":
handleRefreshToken(ctx, form)
return
handleRefreshToken(ctx, form, signingKey)
case "authorization_code":
handleAuthorizationCode(ctx, form)
return
handleAuthorizationCode(ctx, form, signingKey)
default:
handleAccessTokenError(ctx, AccessTokenError{
ErrorCode: AccessTokenErrorCodeUnsupportedGrantType,
@ -528,7 +567,7 @@ func AccessTokenOAuth(ctx *context.Context) {
}
}
func handleRefreshToken(ctx *context.Context, form forms.AccessTokenForm) {
func handleRefreshToken(ctx *context.Context, form forms.AccessTokenForm, signingKey oauth2.JWTSigningKey) {
token, err := models.ParseOAuth2Token(form.RefreshToken)
if err != nil {
handleAccessTokenError(ctx, AccessTokenError{
@ -556,7 +595,7 @@ func handleRefreshToken(ctx *context.Context, form forms.AccessTokenForm) {
log.Warn("A client tried to use a refresh token for grant_id = %d was used twice!", grant.ID)
return
}
accessToken, tokenErr := newAccessTokenResponse(grant, form.ClientSecret)
accessToken, tokenErr := newAccessTokenResponse(grant, signingKey)
if tokenErr != nil {
handleAccessTokenError(ctx, *tokenErr)
return
@ -564,7 +603,7 @@ func handleRefreshToken(ctx *context.Context, form forms.AccessTokenForm) {
ctx.JSON(http.StatusOK, accessToken)
}
func handleAuthorizationCode(ctx *context.Context, form forms.AccessTokenForm) {
func handleAuthorizationCode(ctx *context.Context, form forms.AccessTokenForm, signingKey oauth2.JWTSigningKey) {
app, err := models.GetOAuth2ApplicationByClientID(form.ClientID)
if err != nil {
handleAccessTokenError(ctx, AccessTokenError{
@ -618,7 +657,7 @@ func handleAuthorizationCode(ctx *context.Context, form forms.AccessTokenForm) {
ErrorDescription: "cannot proceed your request",
})
}
resp, tokenErr := newAccessTokenResponse(authorizationCode.Grant, form.ClientSecret)
resp, tokenErr := newAccessTokenResponse(authorizationCode.Grant, signingKey)
if tokenErr != nil {
handleAccessTokenError(ctx, *tokenErr)
return

1
routers/web/web.go

@ -295,6 +295,7 @@ func RegisterRoutes(m *web.Route) {
}, ignSignInAndCsrf, reqSignIn)
m.Get("/login/oauth/userinfo", ignSignInAndCsrf, user.InfoOAuth)
m.Post("/login/oauth/access_token", CorsHandler(), bindIgnErr(forms.AccessTokenForm{}), ignSignInAndCsrf, user.AccessTokenOAuth)
m.Get("/login/oauth/keys", ignSignInAndCsrf, user.OIDCKeys)
m.Group("/user/settings", func() {
m.Get("", userSetting.Profile)

7
templates/user/auth/oidc_wellknown.tmpl

@ -2,11 +2,18 @@
"issuer": "{{AppUrl | JSEscape | Safe}}",
"authorization_endpoint": "{{AppUrl | JSEscape | Safe}}login/oauth/authorize",
"token_endpoint": "{{AppUrl | JSEscape | Safe}}login/oauth/access_token",
"jwks_uri": "{{AppUrl | JSEscape | Safe}}login/oauth/keys",
"userinfo_endpoint": "{{AppUrl | JSEscape | Safe}}login/oauth/userinfo",
"response_types_supported": [
"code",
"id_token"
],
"id_token_signing_alg_values_supported": [
"{{.SigningKey.SigningMethod.Alg | JSEscape | Safe}}"
],
"subject_types_supported": [
"public"
],
"scopes_supported": [
"openid",
"profile",

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