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* Cron: Full orphaned storage cleanup.
*
* Collects all referenced R2 keys from users, conversations, reports, banners.
* Lists R2 objects per folder, deletes orphans.
*/
const { db } = require('../utils/firebase');
const r2 = require('../utils/r2');
const log = require('../utils/log');
const CDN_PREFIX = r2.CDN_URL + '/';
function extractKey(url) {
if (!url?.startsWith(CDN_PREFIX)) return null;
return url.slice(CDN_PREFIX.length);
}
/** Add all R2 keys referenced by a URL array to the set. */
function collectKeysFromUrls(urls, referencedKeys) {
const urlArray = Array.isArray(urls) ? urls : [];
for (const url of urlArray) {
const key = extractKey(url);
Eif (key) referencedKeys.add(key);
}
}
/** Collect referenced keys from user photo fields. */
async function collectUserKeys(referencedKeys) {
const usersSnap = await db
.collection('users')
.select(
'profilePhotoUrl',
'profile_photo_url',
'coverPhotoUrl',
'cover_photo_url',
'preSuspensionProfilePhotoUrl',
'pre_suspension_profile_photo_url',
'preSuspensionCoverPhotoUrl',
'pre_suspension_cover_photo_url',
)
.limit(2000)
.get();
for (const doc of usersSnap.docs) {
const d = doc.data();
for (const url of [
d.profilePhotoUrl || d.profile_photo_url,
d.coverPhotoUrl || d.cover_photo_url,
d.preSuspensionProfilePhotoUrl || d.pre_suspension_profile_photo_url,
d.preSuspensionCoverPhotoUrl || d.pre_suspension_cover_photo_url,
]) {
const key = extractKey(url);
if (key) referencedKeys.add(key);
}
}
}
/** Collect referenced keys from conversation messages (images + stickers). */
async function collectConversationMessageKeys(convsSnap, referencedKeys) {
const convsToScan = convsSnap.docs.slice(0, 30);
for (const convDoc of convsToScan) {
const convId = convDoc.id;
const imageMessagesSnap = await db
.collection(`conversations/${convId}/messages`)
.where('type', '==', 'IMAGE')
.limit(200)
.get();
for (const msgDoc of imageMessagesSnap.docs) {
const msg = msgDoc.data();
collectKeysFromUrls(msg.imageUrls || msg.image_urls || [], referencedKeys);
}
const stickerMessagesSnap = await db
.collection(`conversations/${convId}/messages`)
.where('type', '==', 'STICKER')
.limit(200)
.get();
for (const msgDoc of stickerMessagesSnap.docs) {
const msg = msgDoc.data();
const storageKey = extractKey(msg.stickerUrl || msg.sticker_url);
Eif (storageKey) referencedKeys.add(storageKey);
}
}
}
/** Collect referenced keys from reports/archive evidence URLs. */
async function collectReportKeys(referencedKeys) {
for (const collection of ['reports', 'reportsArchive']) {
const snap = await db
.collection(collection)
.select('evidenceUrls', 'evidence_urls')
.limit(1000)
.get();
for (const doc of snap.docs) {
const row = doc.data();
collectKeysFromUrls(row.evidenceUrls || row.evidence_urls || [], referencedKeys);
}
}
}
async function orphanedStorage() {
const referencedKeys = new Set();
referencedKeys.add('system/shytalk_icon.webp');
await collectUserKeys(referencedKeys);
// Conversations -> groupPhotoUrl
const convsSnap = await db
.collection('conversations')
.select('groupPhotoUrl', 'group_photo_url')
.limit(2000)
.get();
for (const doc of convsSnap.docs) {
const convData = doc.data();
const key = extractKey(convData.groupPhotoUrl || convData.group_photo_url);
if (key) referencedKeys.add(key);
}
await collectConversationMessageKeys(convsSnap, referencedKeys);
await collectReportKeys(referencedKeys);
// Banners -> imageUrl
const bannersSnap = await db
.collection('banners')
.select('imageUrl', 'image_url')
.limit(500)
.get();
for (const doc of bannersSnap.docs) {
const bannerData = doc.data();
const bannerKey = extractKey(bannerData.imageUrl || bannerData.image_url);
Eif (bannerKey) referencedKeys.add(bannerKey);
}
// List and delete orphaned R2 objects
const folders = [
'profiles/',
'covers/',
'messages/',
'groups/',
'evidence/',
'stickers/',
'banners/',
'starting-screens/',
];
let totalDeleted = 0;
for (const folder of folders) {
try {
const allKeys = await r2.listObjects(folder);
const toDelete = allKeys.filter((objKey) => !referencedKeys.has(objKey));
if (toDelete.length > 0) await r2.deleteObjects(toDelete);
const folderName = folder.replace('/', '');
log.info('cron', 'orphanedStorage: folder cleanup', {
folder: folderName,
deleted: toDelete.length,
total: allKeys.length,
});
totalDeleted += toDelete.length;
} catch (err) {
log.error('cron', 'orphanedStorage: folder cleanup failed', { folder, error: err.message });
}
}
log.info('cron', 'orphanedStorage: cleanup complete', { totalDeleted });
}
module.exports = orphanedStorage;
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