111 lines
2.6 KiB
Go
111 lines
2.6 KiB
Go
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// Copyright 2019 Drone IO, Inc.
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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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package session
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import (
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"net/http"
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"strings"
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"time"
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"github.com/drone/drone/core"
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"github.com/dchest/authcookie"
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)
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// New returns a new cookie-based session management.
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func New(users core.UserStore, config Config) core.Session {
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return &session{
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secret: []byte(config.Secret),
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timeout: config.Timeout,
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users: users,
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}
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}
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type session struct {
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users core.UserStore
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secret []byte
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timeout time.Duration
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administrator string // administrator account
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prometheus string // prometheus account
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autoscaler string // autoscaler account
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}
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func (s *session) Create(w http.ResponseWriter, user *core.User) error {
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cookie := &http.Cookie{
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Name: "_session_",
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Path: "/",
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MaxAge: 2147483647,
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HttpOnly: true,
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Value: authcookie.NewSinceNow(
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user.Login,
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s.timeout,
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s.secret,
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),
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}
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w.Header().Add("Set-Cookie", cookie.String()+"; SameSite=lax")
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return nil
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}
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func (s *session) Delete(w http.ResponseWriter) error {
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w.Header().Add("Set-Cookie", "_session_=deleted; Path=/; Max-Age=0")
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return nil
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}
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func (s *session) Get(r *http.Request) (*core.User, error) {
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switch {
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case isAuthorizationToken(r):
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return s.fromToken(r)
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case isAuthorizationParameter(r):
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return s.fromToken(r)
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default:
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return s.fromSession(r)
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}
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}
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func (s *session) fromSession(r *http.Request) (*core.User, error) {
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cookie, err := r.Cookie("_session_")
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if err != nil {
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return nil, nil
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}
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login := authcookie.Login(cookie.Value, s.secret)
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if login == "" {
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return nil, nil
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}
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return s.users.FindLogin(r.Context(), login)
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}
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func (s *session) fromToken(r *http.Request) (*core.User, error) {
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return s.users.FindToken(r.Context(),
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extractToken(r),
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)
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}
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func isAuthorizationToken(r *http.Request) bool {
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return r.Header.Get("Authorization") != ""
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}
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func isAuthorizationParameter(r *http.Request) bool {
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return r.FormValue("access_token") != ""
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}
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func extractToken(r *http.Request) string {
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bearer := r.Header.Get("Authorization")
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if bearer == "" {
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bearer = r.FormValue("access_token")
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}
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return strings.TrimPrefix(bearer, "Bearer ")
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}
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