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thePR0M3TH3ANandClaude Opus 4.8
8171fcb347
Consolidates the persisted-plaintext-decrypt-cache pattern (already used by watch history) into a shared factory, persistedPlaintextCache.js, and adds a DM cache on top of it. watchHistoryDecryptCache now delegates to the factory (same public API; tests unchanged). decryptDirectMessageEvent now also consults/writes a persisted cache keyed by the immutable DM event id (JSON of the decrypt result; flushed once per listDirectMessages batch; cleared on logout alongside the in-memory cache). DM events never change, so a reload re-decrypts only messages it has not seen and skips the (serialized, slow) nip-07 extension for the rest. Harness (dm-repro, now cold/warm): 20 DMs -> COLD nip04.decrypt 50, WARM 0 — reloads cost zero extension decrypt calls. Also excludes the actor's own key from NIP-04 remote candidates (decrypting against self is always wasted). DM unit + integration and watch-history cache tests green. Co-Authored-By: Claude Opus 4.8 <[email protected]>
15 lines
744 B
JavaScript
15 lines
744 B
JavaScript
// Persisted cache of decrypted watch-history chunk plaintext, keyed by the
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// immutable chunk event id. Backed by the shared persisted-plaintext-cache
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// factory (see persistedPlaintextCache.js). An unchanged chunk keeps its event
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// id, so reloads decrypt only the chunk(s) that actually changed and skip the
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// nip-07 extension for the rest. Cleared on logout.
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import { createPersistedPlaintextCache } from "./persistedPlaintextCache.js";
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const cache = createPersistedPlaintextCache("bitvid:whDecryptedChunks:v1", 400);
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export const getCachedChunkPlaintext = cache.get;
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export const setCachedChunkPlaintext = cache.set;
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export const flushDecryptedChunkCache = cache.flush;
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export const clearWatchHistoryDecryptedChunkCache = cache.clear;
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