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feat(worker): cross-channel CRC-fingerprint repost check for the forward path

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admin
2026-07-31 05:00:14 +02:00
parent a46e746298
commit 960da01ec6
4 changed files with 117 additions and 24 deletions
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worker/src/db/queries.ts
+47 -22
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@@ -1030,6 +1030,30 @@ export interface PlaceholderCandidate {
destChannel: { telegramId: bigint } | null;
}
type PlaceholderRow = {
id: string; archiveType: string; fileName: string; fileCount: number; fileSize: bigint;
destMessageId: bigint | null; destMessageIds: bigint[]; destChannelId: string | null;
};
async function enrichWithDestChannel(rows: PlaceholderRow[]): Promise<PlaceholderCandidate[]> {
if (rows.length === 0) return [];
const destChannelIds = [...new Set(rows.map((r) => r.destChannelId).filter((id): id is string => !!id))];
const channels = destChannelIds.length
? await db.telegramChannel.findMany({
where: { id: { in: destChannelIds } },
select: { id: true, telegramId: true },
})
: [];
const telegramIdById = new Map(channels.map((c) => [c.id, c.telegramId]));
return rows.map((row) => ({
id: row.id, archiveType: row.archiveType, fileName: row.fileName, fileCount: row.fileCount, fileSize: row.fileSize,
destMessageId: row.destMessageId, destMessageIds: row.destMessageIds,
destChannel: row.destChannelId && telegramIdById.has(row.destChannelId)
? { telegramId: telegramIdById.get(row.destChannelId)! }
: null,
}));
}
/**
* Find every placeholder Package matching name+size (oldest first). Package
* has no direct `destChannel` relation (only the scalar `destChannelId`), so
@@ -1059,29 +1083,30 @@ export async function findPlaceholderCandidates(
},
orderBy: { indexedAt: "asc" },
});
if (rows.length === 0) return [];
return enrichWithDestChannel(rows);
}
const destChannelIds = [...new Set(rows.map((r) => r.destChannelId).filter((id): id is string => !!id))];
const channels = destChannelIds.length
? await db.telegramChannel.findMany({
where: { id: { in: destChannelIds } },
select: { id: true, telegramId: true },
})
: [];
const telegramIdById = new Map(channels.map((c) => [c.id, c.telegramId]));
return rows.map((row) => ({
id: row.id,
archiveType: row.archiveType,
fileName: row.fileName,
fileCount: row.fileCount,
fileSize: row.fileSize,
destMessageId: row.destMessageId,
destMessageIds: row.destMessageIds,
destChannel: row.destChannelId && telegramIdById.has(row.destChannelId)
? { telegramId: telegramIdById.get(row.destChannelId)! }
: null,
}));
/**
* Find every uploaded Package (any provenance, any channel) matching
* name+size, for the forward-priority path's cross-channel CRC-fingerprint
* dedup check. Unlike findPlaceholderCandidates, this is NOT restricted to
* placeholder rows — it exists to catch the case where the exact same
* archive was independently uploaded (not reposted/forwarded) to two
* different source channels.
*/
export async function findFingerprintDedupCandidates(
fileName: string,
fileSize: bigint,
): Promise<PlaceholderCandidate[]> {
const rows = await db.package.findMany({
where: { fileName, fileSize, destMessageId: { not: null } },
select: {
id: true, archiveType: true, fileName: true, fileCount: true, fileSize: true,
destMessageId: true, destMessageIds: true, destChannelId: true,
},
orderBy: { indexedAt: "asc" },
});
return enrichWithDestChannel(rows);
}
export async function findPlaceholderCandidate(