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101 lines
2.6 KiB
Go
101 lines
2.6 KiB
Go
/*
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Copyright 2023 CAcert Inc.
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SPDX-License-Identifier: Apache-2.0
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package services
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import (
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"errors"
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"fmt"
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"time"
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"github.com/gorilla/sessions"
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"github.com/lestrrat-go/jwx/jwk"
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"github.com/lestrrat-go/jwx/jwt"
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"github.com/lestrrat-go/jwx/jwt/openid"
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log "github.com/sirupsen/logrus"
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)
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type OIDCTokenInfo struct {
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AccessToken string
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IDToken string
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RefreshToken string
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Expires time.Time
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Name string
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Email string
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}
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type TokenInfoService struct {
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logger *log.Logger
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keySet jwk.Set
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}
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func (s *TokenInfoService) GetTokenInfo(session *sessions.Session) (*OIDCTokenInfo, error) {
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tokenInfo := &OIDCTokenInfo{}
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var ok bool
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if tokenInfo.AccessToken, ok = session.Values[SessionAccessToken].(string); ok {
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s.logger.WithField("access_token", tokenInfo.AccessToken).Debug("found access token in session")
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}
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if tokenInfo.RefreshToken, ok = session.Values[SessionRefreshToken].(string); ok {
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s.logger.WithField("refresh_token", tokenInfo.RefreshToken).Debug("found refresh token in session")
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}
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if tokenInfo.IDToken, ok = session.Values[SessionIDToken].(string); ok {
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s.logger.WithField("id_token", tokenInfo.IDToken).Debug("found ID token in session")
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}
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if tokenInfo.IDToken == "" {
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return tokenInfo, nil
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}
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oidcToken, err := ParseIDToken(tokenInfo.IDToken, s.keySet)
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if err != nil {
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return nil, fmt.Errorf("could not parse ID token: %w", err)
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}
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tokenInfo.Expires = oidcToken.Expiration()
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tokenInfo.Name = oidcToken.Name()
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tokenInfo.Email = oidcToken.Email()
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return tokenInfo, nil
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}
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func InitTokenInfoService(logger *log.Logger, oidcInfo *OIDCInformation) (*TokenInfoService, error) {
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return &TokenInfoService{logger: logger, keySet: oidcInfo.KeySet}, nil
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}
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func ParseIDToken(token string, keySet jwk.Set) (openid.Token, error) {
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var (
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parsedIDToken jwt.Token
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err error
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)
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if parsedIDToken, err = jwt.ParseString(token, jwt.WithKeySet(keySet), jwt.WithToken(openid.New())); err != nil {
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return nil, fmt.Errorf("could not parse ID token: %w", err)
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}
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if v, ok := parsedIDToken.(openid.Token); ok {
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return v, nil
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}
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return nil, errors.New("ID token is no OpenID Connect Identity Token")
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}
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