mirror of
https://github.com/opencloud-eu/opencloud.git
synced 2026-01-04 12:10:21 -05:00
146 lines
3.6 KiB
Go
146 lines
3.6 KiB
Go
/*
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* Copyright 2017-2019 Kopano and its licensors
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*/
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package provider
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import (
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"bytes"
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"encoding/base64"
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"encoding/gob"
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"net/http"
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"github.com/golang-jwt/jwt/v5"
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"github.com/longsleep/rndm"
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konnect "github.com/libregraph/lico"
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"github.com/libregraph/lico/identity"
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"github.com/libregraph/lico/oidc"
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"github.com/libregraph/lico/oidc/payload"
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)
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const sessionVersion = 2
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func (p *Provider) getSession(req *http.Request) (*payload.Session, error) {
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serialized, err := p.getSessionCookie(req)
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switch err {
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case nil:
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// breaks
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case http.ErrNoCookie:
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return nil, nil
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default:
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return nil, err
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}
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// Decode.
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return p.unserializeSession(serialized)
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}
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func (p *Provider) updateOrCreateSession(rw http.ResponseWriter, req *http.Request, ar *payload.AuthenticationRequest, auth identity.AuthRecord) (*payload.Session, error) {
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session := ar.Session
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if session != nil && session.Version == sessionVersion && session.Sub == auth.Subject() {
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// Existing session with same sub.
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return session, nil
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}
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// Create new session.
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session = &payload.Session{
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Version: sessionVersion,
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ID: rndm.GenerateRandomString(32),
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Sub: auth.Subject(),
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Provider: auth.Manager().Name(),
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}
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serialized, err := p.serializeSession(session)
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if err != nil {
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return session, err
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}
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err = p.setSessionCookie(rw, serialized)
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return session, err
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}
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func (p *Provider) serializeSession(session *payload.Session) (string, error) {
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var b bytes.Buffer
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enc := gob.NewEncoder(&b)
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err := enc.Encode(session)
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if err != nil {
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return "", err
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}
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ciphertext, err := p.encryptionManager.Encrypt(b.Bytes())
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if err != nil {
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return "", err
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}
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return base64.StdEncoding.EncodeToString(ciphertext), nil
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}
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func (p *Provider) unserializeSession(value string) (*payload.Session, error) {
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ciphertext, err := base64.StdEncoding.DecodeString(value)
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if err != nil {
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return nil, err
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}
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raw, err := p.encryptionManager.Decrypt(ciphertext)
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if err != nil {
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return nil, err
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}
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var session payload.Session
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r := bytes.NewReader(raw)
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dec := gob.NewDecoder(r)
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err = dec.Decode(&session)
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if err != nil {
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return nil, err
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}
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return &session, nil
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}
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func (p *Provider) getUserIDAndSessionRefFromClaims(claims *jwt.RegisteredClaims, sessionClaims *oidc.SessionClaims, identityClaims jwt.MapClaims) (string, *string) {
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if claims == nil || identityClaims == nil {
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return "", nil
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}
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if len(claims.Audience) != 1 {
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return "", nil
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}
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audience := claims.Audience[0]
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userIDClaim, _ := identityClaims[konnect.IdentifiedUserIDClaim].(string)
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if userIDClaim == "" {
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return userIDClaim, nil
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}
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userClaim, _ := identityClaims[konnect.IdentifiedUserClaim].(string)
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if userClaim == "" {
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userClaim = userIDClaim
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}
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if sessionClaims != nil {
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sessionIDClaim := sessionClaims.SessionID
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if sessionIDClaim != "" {
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return userIDClaim, &sessionIDClaim
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}
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}
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// NOTE(longsleep): Return the userID from claims and generate a session ref
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// for it. Session refs use the userClaim if available and set by the
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// underlaying backend.
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return userIDClaim, identity.GetSessionRef(p.identityManager.Name(), audience, userClaim)
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}
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