Files
grafana/pkg/services/authz/rbac/cache.go
T
Gabriel MABILLE 45d6bfe7cf AuthZ: Make cache ttl configurable (#103769)
* AuthZ: Configure cache ttl

Co-authored-by: Eric Leijonmarck <eric.leijonmarck@gmail.com>

* Client side conf

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>
Co-authored-by: Eric Leijonmarck <eric.leijonmarck@gmail.com>

* 0 -> No caching

* Make it possible to disable cache on the remote client as well

* Comment

* Move ttl parsing up for in-proc to have it

---------

Co-authored-by: Eric Leijonmarck <eric.leijonmarck@gmail.com>
Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>
2025-04-11 10:09:47 +02:00

112 lines
2.7 KiB
Go

package rbac
import (
"context"
"encoding/json"
"errors"
"time"
"github.com/grafana/authlib/cache"
"github.com/grafana/grafana/pkg/infra/log"
)
func userIdentifierCacheKey(namespace, userUID string) string {
return namespace + ".uid_" + userUID
}
func userIdentifierCacheKeyById(namespace, ID string) string {
return namespace + ".id_" + ID
}
func anonymousPermCacheKey(namespace, action string) string {
return namespace + ".perm_anonymous_" + action
}
func userPermCacheKey(namespace, userUID, action string) string {
return namespace + ".perm_" + userUID + "_" + action
}
func userPermDenialCacheKey(namespace, userUID, action, name, parent string) string {
return namespace + ".perm_" + userUID + "_" + action + "_" + name + "_" + parent
}
func userBasicRoleCacheKey(namespace, userUID string) string {
return namespace + ".basic_role_" + userUID
}
func userTeamCacheKey(namespace, userUID string) string {
return namespace + ".team_" + userUID
}
func folderCacheKey(namespace string) string {
return namespace + ".folders"
}
type cacheWrap[T any] interface {
Get(ctx context.Context, key string) (T, bool)
Set(ctx context.Context, key string, value T)
}
type cacheWrapImpl[T any] struct {
cache cache.Cache
logger log.Logger
ttl time.Duration
}
// cacheWrap is a wrapper around the authlib Cache that provides typed Get and Set methods
// it handles encoding/decoding for a specific type.
func newCacheWrap[T any](cache cache.Cache, logger log.Logger, ttl time.Duration) cacheWrap[T] {
if ttl == 0 {
logger.Info("cache ttl is 0, using noop cache")
return &noopCache[T]{}
}
return &cacheWrapImpl[T]{cache: cache, logger: logger, ttl: ttl}
}
func (c *cacheWrapImpl[T]) Get(ctx context.Context, key string) (T, bool) {
logger := c.logger.FromContext(ctx)
var value T
data, err := c.cache.Get(ctx, key)
if err != nil {
if !errors.Is(err, cache.ErrNotFound) {
logger.Warn("failed to get from cache", "key", key, "error", err)
}
return value, false
}
err = json.Unmarshal(data, &value)
if err != nil {
logger.Warn("failed to unmarshal from cache", "key", key, "error", err)
return value, false
}
return value, true
}
func (c *cacheWrapImpl[T]) Set(ctx context.Context, key string, value T) {
logger := c.logger.FromContext(ctx)
data, err := json.Marshal(value)
if err != nil {
logger.Warn("failed to marshal to cache", "key", key, "error", err)
return
}
err = c.cache.Set(ctx, key, data, c.ttl)
if err != nil {
logger.Warn("failed to set to cache", "key", key, "error", err)
}
}
type noopCache[T any] struct{}
func (lc *noopCache[T]) Get(ctx context.Context, key string) (T, bool) {
var value T
return value, false
}
func (lc *noopCache[T]) Set(ctx context.Context, key string, value T) {
// no-op
}