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/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cache
import (
"time"
"codeberg.org/gruf/go-cache/v2"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
// AccountCache is a cache wrapper to provide URL and URI lookups for gtsmodel.Account
type AccountCache struct {
cache cache.LookupCache[string, string, *gtsmodel.Account]
}
// NewAccountCache returns a new instantiated AccountCache object
func NewAccountCache() *AccountCache {
c := &AccountCache{}
c.cache = cache.NewLookup(cache.LookupCfg[string, string, *gtsmodel.Account]{
RegisterLookups: func(lm *cache.LookupMap[string, string]) {
lm.RegisterLookup("uri")
lm.RegisterLookup("url")
lm.RegisterLookup("pubkeyid")
lm.RegisterLookup("usernamedomain")
},
AddLookups: func(lm *cache.LookupMap[string, string], acc *gtsmodel.Account) {
if uri := acc.URI; uri != "" {
lm.Set("uri", uri, acc.ID)
}
if url := acc.URL; url != "" {
lm.Set("url", url, acc.ID)
}
lm.Set("pubkeyid", acc.PublicKeyURI, acc.ID)
lm.Set("usernamedomain", usernameDomainKey(acc.Username, acc.Domain), acc.ID)
},
DeleteLookups: func(lm *cache.LookupMap[string, string], acc *gtsmodel.Account) {
if uri := acc.URI; uri != "" {
lm.Delete("uri", uri)
}
if url := acc.URL; url != "" {
lm.Delete("url", url)
}
lm.Delete("pubkeyid", acc.PublicKeyURI)
lm.Delete("usernamedomain", usernameDomainKey(acc.Username, acc.Domain))
},
})
c.cache.SetTTL(time.Minute*5, false)
c.cache.Start(time.Second * 10)
return c
}
// GetByID attempts to fetch a account from the cache by its ID, you will receive a copy for thread-safety
func (c *AccountCache) GetByID(id string) (*gtsmodel.Account, bool) {
return c.cache.Get(id)
}
// GetByURL attempts to fetch a account from the cache by its URL, you will receive a copy for thread-safety
func (c *AccountCache) GetByURL(url string) (*gtsmodel.Account, bool) {
return c.cache.GetBy("url", url)
}
// GetByURI attempts to fetch a account from the cache by its URI, you will receive a copy for thread-safety
func (c *AccountCache) GetByURI(uri string) (*gtsmodel.Account, bool) {
return c.cache.GetBy("uri", uri)
}
// GettByUsernameDomain attempts to fetch an account from the cache by its username@domain combo (or just username), you will receive a copy for thread-safety.
func (c *AccountCache) GetByUsernameDomain(username string, domain string) (*gtsmodel.Account, bool) {
return c.cache.GetBy("usernamedomain", usernameDomainKey(username, domain))
}
// GetByPubkeyID attempts to fetch an account from the cache by its public key URI (ID), you will receive a copy for thread-safety.
func (c *AccountCache) GetByPubkeyID(id string) (*gtsmodel.Account, bool) {
return c.cache.GetBy("pubkeyid", id)
}
// Put places a account in the cache, ensuring that the object place is a copy for thread-safety
func (c *AccountCache) Put(account *gtsmodel.Account) {
if account == nil || account.ID == "" {
panic("invalid account")
}
c.cache.Set(account.ID, copyAccount(account))
}
// Invalidate removes (invalidates) one account from the cache by its ID.
func (c *AccountCache) Invalidate(id string) {
c.cache.Invalidate(id)
}
// copyAccount performs a surface-level copy of account, only keeping attached IDs intact, not the objects.
// due to all the data being copied being 99% primitive types or strings (which are immutable and passed by ptr)
// this should be a relatively cheap process
func copyAccount(account *gtsmodel.Account) *gtsmodel.Account {
return >smodel.Account{
ID: account.ID,
Username: account.Username,
Domain: account.Domain,
AvatarMediaAttachmentID: account.AvatarMediaAttachmentID,
AvatarMediaAttachment: nil,
AvatarRemoteURL: account.AvatarRemoteURL,
HeaderMediaAttachmentID: account.HeaderMediaAttachmentID,
HeaderMediaAttachment: nil,
HeaderRemoteURL: account.HeaderRemoteURL,
DisplayName: account.DisplayName,
EmojiIDs: account.EmojiIDs,
Emojis: nil,
Fields: account.Fields,
Note: account.Note,
NoteRaw: account.NoteRaw,
Memorial: copyBoolPtr(account.Memorial),
MovedToAccountID: account.MovedToAccountID,
Bot: copyBoolPtr(account.Bot),
CreatedAt: account.CreatedAt,
UpdatedAt: account.UpdatedAt,
Reason: account.Reason,
Locked: copyBoolPtr(account.Locked),
Discoverable: copyBoolPtr(account.Discoverable),
Privacy: account.Privacy,
Sensitive: copyBoolPtr(account.Sensitive),
Language: account.Language,
StatusFormat: account.StatusFormat,
CustomCSS: account.CustomCSS,
URI: account.URI,
URL: account.URL,
LastWebfingeredAt: account.LastWebfingeredAt,
InboxURI: account.InboxURI,
SharedInboxURI: account.SharedInboxURI,
OutboxURI: account.OutboxURI,
FollowingURI: account.FollowingURI,
FollowersURI: account.FollowersURI,
FeaturedCollectionURI: account.FeaturedCollectionURI,
ActorType: account.ActorType,
AlsoKnownAs: account.AlsoKnownAs,
PrivateKey: account.PrivateKey,
PublicKey: account.PublicKey,
PublicKeyURI: account.PublicKeyURI,
SensitizedAt: account.SensitizedAt,
SilencedAt: account.SilencedAt,
SuspendedAt: account.SuspendedAt,
HideCollections: copyBoolPtr(account.HideCollections),
SuspensionOrigin: account.SuspensionOrigin,
EnableRSS: copyBoolPtr(account.EnableRSS),
}
}
func usernameDomainKey(username string, domain string) string {
u := "@" + username
if domain != "" {
return u + "@" + domain
}
return u
}
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