authelia/internal/session/provider.go

123 lines
3.0 KiB
Go

package session
import (
"encoding/json"
"github.com/authelia/authelia/internal/utils"
"time"
"github.com/authelia/authelia/internal/configuration/schema"
fasthttpsession "github.com/fasthttp/session"
"github.com/valyala/fasthttp"
)
// Provider a session provider.
type Provider struct {
sessionHolder *fasthttpsession.Session
RememberMe time.Duration
}
// NewProvider instantiate a session provider given a configuration.
func NewProvider(configuration schema.SessionConfiguration) *Provider {
providerConfig := NewProviderConfig(configuration)
provider := new(Provider)
provider.sessionHolder = fasthttpsession.New(providerConfig.config)
duration, err := utils.ParseDurationString(configuration.RememberMeDuration)
if err != nil {
panic(err)
}
provider.RememberMe = duration
err = provider.sessionHolder.SetProvider(providerConfig.providerName, providerConfig.providerConfig)
if err != nil {
panic(err)
}
return provider
}
// GetSession return the user session from a request
func (p *Provider) GetSession(ctx *fasthttp.RequestCtx) (UserSession, error) {
store, err := p.sessionHolder.Get(ctx)
if err != nil {
return NewDefaultUserSession(), err
}
userSessionJSON, ok := store.Get(userSessionStorerKey).([]byte)
// If userSession is not yet defined we create the new session with default values
// and save it in the store.
if !ok {
userSession := NewDefaultUserSession()
store.Set(userSessionStorerKey, userSession)
return userSession, nil
}
var userSession UserSession
err = json.Unmarshal(userSessionJSON, &userSession)
if err != nil {
return NewDefaultUserSession(), err
}
return userSession, nil
}
// SaveSession save the user session.
func (p *Provider) SaveSession(ctx *fasthttp.RequestCtx, userSession UserSession) error {
store, err := p.sessionHolder.Get(ctx)
if err != nil {
return err
}
userSessionJSON, err := json.Marshal(userSession)
if err != nil {
return err
}
store.Set(userSessionStorerKey, userSessionJSON)
p.sessionHolder.Save(ctx, store)
return nil
}
// RegenerateSession regenerate a session ID.
func (p *Provider) RegenerateSession(ctx *fasthttp.RequestCtx) error {
_, err := p.sessionHolder.Regenerate(ctx)
return err
}
// DestroySession destroy a session ID and delete the cookie.
func (p *Provider) DestroySession(ctx *fasthttp.RequestCtx) error {
return p.sessionHolder.Destroy(ctx)
}
// UpdateExpiration update the expiration of the cookie and session.
func (p *Provider) UpdateExpiration(ctx *fasthttp.RequestCtx, expiration time.Duration) error {
store, err := p.sessionHolder.Get(ctx)
if err != nil {
return err
}
err = store.SetExpiration(expiration)
if err != nil {
return err
}
p.sessionHolder.Save(ctx, store)
return nil
}
// GetExpiration get the expiration of the current session.
func (p *Provider) GetExpiration(ctx *fasthttp.RequestCtx) (time.Duration, error) {
store, err := p.sessionHolder.Get(ctx)
if err != nil {
return time.Duration(0), err
}
return store.GetExpiration(), nil
}