portainer/api/http/proxy/factory/kubernetes/token_cache.go

85 lines
2.2 KiB
Go

package kubernetes
import (
"strconv"
"sync"
cmap "github.com/orcaman/concurrent-map"
)
type (
// TokenCacheManager represents a service used to manage multiple tokenCache objects.
TokenCacheManager struct {
tokenCaches cmap.ConcurrentMap
}
tokenCache struct {
userTokenCache cmap.ConcurrentMap
mutex sync.Mutex
}
)
// NewTokenCacheManager returns a pointer to a new instance of TokenCacheManager
func NewTokenCacheManager() *TokenCacheManager {
return &TokenCacheManager{
tokenCaches: cmap.New(),
}
}
// CreateTokenCache will create a new tokenCache object, associate it to the manager map of caches
// and return a pointer to that tokenCache instance.
func (manager *TokenCacheManager) CreateTokenCache(endpointID int) *tokenCache {
tokenCache := newTokenCache()
key := strconv.Itoa(endpointID)
manager.tokenCaches.Set(key, tokenCache)
return tokenCache
}
// GetOrCreateTokenCache will get the tokenCache from the manager map of caches if it exists,
// otherwise it will create a new tokenCache object, associate it to the manager map of caches
// and return a pointer to that tokenCache instance.
func (manager *TokenCacheManager) GetOrCreateTokenCache(endpointID int) *tokenCache {
key := strconv.Itoa(endpointID)
if epCache, ok := manager.tokenCaches.Get(key); ok {
return epCache.(*tokenCache)
}
return manager.CreateTokenCache(endpointID)
}
// RemoveUserFromCache will ensure that the specific userID is removed from all registered caches.
func (manager *TokenCacheManager) RemoveUserFromCache(userID int) {
for cache := range manager.tokenCaches.IterBuffered() {
cache.Val.(*tokenCache).removeToken(userID)
}
}
func newTokenCache() *tokenCache {
return &tokenCache{
userTokenCache: cmap.New(),
mutex: sync.Mutex{},
}
}
func (cache *tokenCache) getToken(userID int) (string, bool) {
key := strconv.Itoa(userID)
token, ok := cache.userTokenCache.Get(key)
if ok {
return token.(string), true
}
return "", false
}
func (cache *tokenCache) addToken(userID int, token string) {
key := strconv.Itoa(userID)
cache.userTokenCache.Set(key, token)
}
func (cache *tokenCache) removeToken(userID int) {
key := strconv.Itoa(userID)
cache.userTokenCache.Remove(key)
}