92 lines
2.5 KiB
Go
92 lines
2.5 KiB
Go
package persistence
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import (
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"fmt"
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"net/http"
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"time"
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"github.com/oauth2-proxy/oauth2-proxy/pkg/apis/options"
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"github.com/oauth2-proxy/oauth2-proxy/pkg/apis/sessions"
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)
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// Manager wraps a Store and handles the implementation details of the
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// sessions.SessionStore with its use of session tickets
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type Manager struct {
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Store Store
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Options *options.Cookie
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}
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// NewManager creates a Manager that can wrap a Store and manage the
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// sessions.SessionStore implementation details
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func NewManager(store Store, cookieOpts *options.Cookie) *Manager {
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return &Manager{
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Store: store,
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Options: cookieOpts,
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}
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}
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// Save saves a session in a persistent Store. Save will generate (or reuse an
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// existing) ticket which manages unique per session encryption & retrieval
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// from the persistent data store.
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func (m *Manager) Save(rw http.ResponseWriter, req *http.Request, s *sessions.SessionState) error {
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if s.CreatedAt == nil || s.CreatedAt.IsZero() {
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now := time.Now()
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s.CreatedAt = &now
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}
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tckt, err := decodeTicketFromRequest(req, m.Options)
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if err != nil {
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tckt, err = newTicket(m.Options)
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if err != nil {
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return fmt.Errorf("error creating a session ticket: %v", err)
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}
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}
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err = tckt.saveSession(s, func(key string, val []byte, exp time.Duration) error {
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return m.Store.Save(req.Context(), key, val, exp)
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})
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if err != nil {
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return err
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}
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tckt.setCookie(rw, req, s)
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return nil
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}
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// Load reads sessions.SessionState information from a session store. It will
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// use the session ticket from the http.Request's cookie.
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func (m *Manager) Load(req *http.Request) (*sessions.SessionState, error) {
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tckt, err := decodeTicketFromRequest(req, m.Options)
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if err != nil {
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return nil, err
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}
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return tckt.loadSession(func(key string) ([]byte, error) {
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return m.Store.Load(req.Context(), key)
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})
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}
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// Clear clears any saved session information for a given ticket cookie.
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// Then it clears all session data for that ticket in the Store.
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func (m *Manager) Clear(rw http.ResponseWriter, req *http.Request) error {
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tckt, err := decodeTicketFromRequest(req, m.Options)
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if err != nil {
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// Always clear the cookie, even when we can't load a cookie from
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// the request
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tckt = &ticket{
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options: m.Options,
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}
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tckt.clearCookie(rw, req)
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// Don't raise an error if we didn't have a Cookie
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if err == http.ErrNoCookie {
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return nil
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}
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return fmt.Errorf("error decoding ticket to clear session: %v", err)
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}
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tckt.clearCookie(rw, req)
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return tckt.clearSession(func(key string) error {
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return m.Store.Clear(req.Context(), key)
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})
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}
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