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msgconv/from-whatsapp: cache converted media messages to bridge capti…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| // mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge. | ||
| // Copyright (C) 2024 Tulir Asokan | ||
| // | ||
| // 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 <https://www.gnu.org/licenses/>. | ||
|
|
||
| package connector | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "maunium.net/go/mautrix/bridgev2" | ||
| "maunium.net/go/mautrix/bridgev2/networkid" | ||
| "maunium.net/go/mautrix/event" | ||
| "maunium.net/go/mautrix/id" | ||
| ) | ||
|
|
||
| type MediaEditCacheKey struct { | ||
| MessageID networkid.MessageID | ||
| PortalMXID id.RoomID | ||
| } | ||
|
|
||
| type MediaEditCacheValue struct { | ||
| Part *bridgev2.ConvertedMessagePart | ||
| Expiry time.Time | ||
| } | ||
|
|
||
| type MediaEditCache map[MediaEditCacheKey]MediaEditCacheValue | ||
|
|
||
| func (wa *WhatsAppConnector) mediaEditCacheExpireLoop(ctx context.Context) { | ||
| ticker := time.NewTicker(1 * time.Minute) | ||
| ctxDone := ctx.Done() | ||
| defer ticker.Stop() | ||
| for { | ||
| select { | ||
| case <-ticker.C: | ||
| case <-ctxDone: | ||
| return | ||
| } | ||
| wa.expireMediaEditCache() | ||
| } | ||
| } | ||
|
|
||
| func (wa *WhatsAppConnector) AddMediaEditCache(portal *bridgev2.Portal, messageID networkid.MessageID, converted *bridgev2.ConvertedMessagePart) { | ||
| if converted.Type != event.EventSticker && !converted.Content.MsgType.IsMedia() { | ||
| return | ||
| } | ||
| wa.mediaEditCacheLock.Lock() | ||
| defer wa.mediaEditCacheLock.Unlock() | ||
| wa.mediaEditCache[MediaEditCacheKey{ | ||
| MessageID: messageID, | ||
| PortalMXID: portal.MXID, | ||
| }] = MediaEditCacheValue{ | ||
| Part: converted, | ||
| Expiry: time.Now().Add(EditMaxAge + 5*time.Minute), | ||
| } | ||
| } | ||
|
|
||
| func (wa *WhatsAppConnector) GetMediaEditCache(portal *bridgev2.Portal, messageID networkid.MessageID) *bridgev2.ConvertedMessagePart { | ||
| wa.mediaEditCacheLock.RLock() | ||
| defer wa.mediaEditCacheLock.RUnlock() | ||
| value, ok := wa.mediaEditCache[MediaEditCacheKey{ | ||
| MessageID: messageID, | ||
| PortalMXID: portal.MXID, | ||
| }] | ||
| if !ok || time.Until(value.Expiry) < 0 { | ||
| return nil | ||
| } | ||
| return value.Part | ||
| } | ||
|
|
||
| func (wa *WhatsAppConnector) expireMediaEditCache() { | ||
| wa.mediaEditCacheLock.Lock() | ||
| defer wa.mediaEditCacheLock.Unlock() | ||
| for key, value := range wa.mediaEditCache { | ||
| if time.Until(value.Expiry) < 0 { | ||
| delete(wa.mediaEditCache, key) | ||
| } | ||
| } | ||
| } |
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