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|
package session
import (
"crypto/rand"
"encoding/base64"
"fmt"
"sync"
"time"
"golang.org/x/oauth2"
)
type UserSession struct {
Token string
OAuthTokenSource oauth2.TokenSource
Subject string
Name string
Email string
UserInfoMutex sync.Mutex
UserInfoExpires time.Time
TeamID string
TeamName string
}
// implemtation adapted from
// https://git.leonardobishop.net/confplanner/tree/pkg/session/memory.go
// TODO add expiry
type MemoryStore struct {
sessions map[string]*UserSession
lock sync.RWMutex
}
func NewMemoryStore() *MemoryStore {
return &MemoryStore{
sessions: make(map[string]*UserSession),
}
}
func (s *MemoryStore) GetByToken(token string) *UserSession {
if token == "" {
return nil
}
s.lock.RLock()
defer s.lock.RUnlock()
return s.sessions[token]
}
func (s *MemoryStore) Create() (*UserSession, error) {
s.lock.Lock()
defer s.lock.Unlock()
var token string
for {
token = generateSessionToken()
_, tokenExists := s.sessions[token]
if !tokenExists {
break
}
}
session := &UserSession{
Token: token,
}
s.sessions[token] = session
return session, nil
}
func (s *MemoryStore) Destroy(token string) error {
s.lock.Lock()
defer s.lock.Unlock()
session := s.sessions[token]
if session == nil {
return fmt.Errorf("session does not exist")
}
delete(s.sessions, token)
return nil
}
func generateSessionToken() string {
b := make([]byte, 100)
if _, err := rand.Read(b); err != nil {
return ""
}
return base64.StdEncoding.EncodeToString(b)
}
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