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google-labs-jules[bot]andPR0M3TH3AN
0ae813ea66
- Implement `getModerationInfoForAuthors` in `ModerationService` for batching. - Extract utility functions to `js/services/moderationUtils.js` to reduce `ModerationService` size. - Update `createModerationStage` to use batch lookup, reducing sequential overhead. - Benchmarks show ~50% improvement (454ms -> 227ms) for 5000 items. - All unit tests pass. - Task log: `docs/agents/task-logs/weekly/2026-02-22_01-25-01_perf-optimization-agent_completed.md` Co-authored-by: PR0M3TH3AN <[email protected]>
2140 lines
60 KiB
JavaScript
2140 lines
60 KiB
JavaScript
/**
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* @fileoverview
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* Moderation Service - Decentralized Trust & Safety.
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*
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* Implements a "Web of Trust" model where content visibility and safety actions (blur, hide)
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* are determined by aggregating reports (NIP-56) and mutes (NIP-51) from the user's
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* trusted social graph (follows).
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*
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* Flow:
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* 1. setViewerPubkey(pubkey) loads the user's Kind 3 contacts -> trustedContacts.
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* 2. subscribeToReports(eventId) listens for Kind 1984 reports.
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* 3. ingestReportEvent(event) stores reports in memory.
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* 4. recomputeSummaryForEvent(eventId) checks if reporter is in trustedContacts.
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* 5. If trusted reports > threshold, emits 'summary' event to update UI.
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*/
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import {
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getActiveSigner,
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nostrClient,
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requestDefaultExtensionPermissions,
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} from "../nostrClientFacade.js";
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import { publishEventToRelays, assertAnyRelayAccepted } from "../nostrPublish.js";
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import { accessControl } from "../accessControl.js";
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import { userBlocks, USER_BLOCK_EVENTS } from "../userBlocks.js";
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import { buildReportEvent, KIND_MUTE_LIST } from "../nostrEventSchemas.js";
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import logger from "../utils/logger.js";
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import { DEBOUNCE_DELAY_MS } from "../constants.js";
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import {
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normalizeUserLogger,
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SimpleEventEmitter,
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normalizeLogger,
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normalizeHex,
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normalizeEventId,
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normalizeReportType,
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normalizeMuteCategory,
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extractMuteCategoryFromTag,
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cloneSummary,
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encodeToNpub,
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normalizeToHex,
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createEmptyAdminSnapshot,
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resolveRelayList,
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findReportedEventId,
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extractReportType,
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ensureNumber,
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resolveStorage,
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AUTOPLAY_TRUST_THRESHOLD,
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BLUR_TRUST_THRESHOLD,
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TRUSTED_MUTE_WINDOW_SECONDS,
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decodeToHex
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} from "./moderationUtils.js";
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/**
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* ModerationService
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*
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* Central authority for Trust & Safety.
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* Implements a "Web of Trust" model where content visibility and safety actions (blur, hide)
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* are determined by aggregating reports (NIP-56) and mutes (NIP-51) from the user's
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* trusted social graph (follows).
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*/
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export class ModerationService {
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/**
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* @param {object} options
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* @param {object} [options.nostrClient] Nostr client.
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* @param {object} [options.logger] System logger.
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* @param {object} [options.userBlocks] User block manager.
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* @param {object} [options.accessControl] Admin access control.
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* @param {object} [options.userLogger] User-facing logger.
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* @param {function} [options.requestExtensionPermissions] NIP-07 helper.
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*/
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constructor({
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nostrClient: client = null,
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logger: log = null,
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userBlocks: userBlockManager = null,
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accessControl: accessControlService = null,
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userLogger: userChannel = null,
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requestExtensionPermissions: permissionRequester = null,
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} = {}) {
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this.nostrClient = client;
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this.log = normalizeLogger(log);
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this.userLogger = normalizeUserLogger(userChannel);
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this.requestExtensionPermissions = permissionRequester || requestDefaultExtensionPermissions;
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this.viewerPubkey = "";
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this.viewerIsSessionActor = false;
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this.trustedContacts = new Set();
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this.trustedSeedContacts = new Set();
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this.viewerContacts = new Set();
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this.userBlocks = null;
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this.accessControl = accessControlService;
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this.viewerMuteList = new Set();
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this.viewerMuteEventId = "";
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this.viewerMuteUpdatedAt = 0;
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this.viewerMutePromise = null;
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this.contactSubscription = null;
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this.contactListPromise = null;
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this.lastContactEventId = null;
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this.reportEvents = new Map();
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this.reportSummaries = new Map();
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this.activeSubscriptions = new Map();
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this.activeEventIds = new Set();
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this.trustedMuteLists = new Map();
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this.trustedMutedAuthors = new Map();
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this.trustedMuteSubscriptions = new Map(); // Kept for legacy/individual manual subs if needed, but primary logic is now batched
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this.trustedSeedOnly = false;
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this.batchedMuteSubscriptions = [];
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this.muteRefreshTimer = null;
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this.emitter = new SimpleEventEmitter((message, error) => {
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try {
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this.log(message, error);
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} catch (logError) {
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logger.user.warn("[moderationService] logger threw", logError);
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}
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});
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this.userBlockUnsubscribe = null;
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this.userBlockRefreshQueue = Promise.resolve();
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this.setUserBlocks(userBlockManager);
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}
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setUserLogger(channel) {
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this.userLogger = normalizeUserLogger(channel);
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}
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mergeSeedsIntoSet(base = null) {
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const merged = new Set();
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if (base instanceof Set || Array.isArray(base)) {
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for (const value of base) {
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const normalized = normalizeHex(value);
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if (normalized) {
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merged.add(normalized);
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}
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}
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} else if (base && typeof base[Symbol.iterator] === "function") {
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for (const value of base) {
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const normalized = normalizeHex(value);
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if (normalized) {
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merged.add(normalized);
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}
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}
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}
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if (this.trustedSeedContacts instanceof Set) {
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const adminSnapshot = this.getAdminListSnapshot();
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const blacklistHex = adminSnapshot.blacklistHex;
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for (const seed of this.trustedSeedContacts) {
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const normalized = normalizeHex(seed);
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if (normalized && (!blacklistHex || !blacklistHex.has(normalized))) {
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merged.add(normalized);
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}
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}
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}
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return merged;
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}
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computeTrustedSeedOnly() {
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const trustedContacts =
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this.trustedContacts instanceof Set ? this.trustedContacts : new Set();
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const trustedSeedContacts =
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this.trustedSeedContacts instanceof Set ? this.trustedSeedContacts : new Set();
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if (!trustedSeedContacts.size || trustedContacts.size !== trustedSeedContacts.size) {
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return false;
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}
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for (const value of trustedContacts) {
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if (!trustedSeedContacts.has(value)) {
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return false;
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}
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}
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return true;
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}
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updateTrustedSeedOnlyStatus() {
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const nextValue = this.computeTrustedSeedOnly();
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if (nextValue === this.trustedSeedOnly) {
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return;
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}
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this.trustedSeedOnly = nextValue;
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this.emit("trusted-seed-only", { seedOnly: nextValue });
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}
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rebuildTrustedContacts(nextContacts = new Set(), { previous = null } = {}) {
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const sanitized = new Set();
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if (nextContacts instanceof Set || Array.isArray(nextContacts)) {
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for (const value of nextContacts) {
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const normalized = normalizeHex(value);
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if (normalized) {
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sanitized.add(normalized);
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}
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}
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} else if (nextContacts && typeof nextContacts[Symbol.iterator] === "function") {
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for (const value of nextContacts) {
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const normalized = normalizeHex(value);
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if (normalized) {
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sanitized.add(normalized);
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}
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}
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}
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this.viewerContacts = sanitized;
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const previousContacts =
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previous instanceof Set
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? new Set(previous)
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: this.trustedContacts instanceof Set
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? new Set(this.trustedContacts)
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: new Set();
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const seededNext = this.mergeSeedsIntoSet(sanitized);
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this.trustedContacts = seededNext;
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this.updateTrustedSeedOnlyStatus();
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this.emit("contacts", { size: seededNext.size });
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this.recomputeAllSummaries();
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this.reconcileTrustedMuteSubscriptions(previousContacts, seededNext);
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}
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getViewerContactsSnapshot({ includeViewer = false } = {}) {
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const contacts =
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this.viewerContacts instanceof Set ? this.viewerContacts : new Set();
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const viewer = normalizeHex(this.viewerPubkey);
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const list = [];
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for (const value of contacts) {
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const normalized = normalizeHex(value);
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if (!normalized) {
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continue;
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}
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if (!includeViewer && viewer && normalized === viewer) {
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continue;
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}
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list.push({
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pubkey: normalized,
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npub: encodeToNpub(normalized) || "",
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});
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}
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return list;
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}
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async ensureViewerContactsLoaded(pubkey = null) {
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const target = normalizeHex(pubkey);
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const viewer = normalizeHex(this.viewerPubkey);
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if (target && target !== viewer) {
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try {
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await this.setViewerPubkey(target);
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} catch (error) {
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this.log(
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"[moderationService] failed to set viewer pubkey while ensuring contacts",
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error,
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);
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}
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return this.getViewerContactsSnapshot();
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}
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if (this.contactListPromise) {
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try {
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await this.contactListPromise;
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} catch (error) {
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this.log(
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"[moderationService] contact hydration failed while ensuring contacts",
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error,
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);
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}
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} else if (viewer) {
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const hasContacts =
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this.viewerContacts instanceof Set && this.viewerContacts.size > 0;
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if (!hasContacts) {
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try {
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await this.fetchTrustedContacts(viewer);
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} catch (error) {
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this.log(
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"[moderationService] failed to fetch viewer contacts while ensuring contacts",
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error,
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);
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}
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}
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}
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return this.getViewerContactsSnapshot();
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}
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setTrustedSeeds(seeds = []) {
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this.log("[moderationService] setTrustedSeeds called", { count: seeds?.length || seeds?.size || 0 });
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const sanitizedSeeds = new Set();
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const adminSnapshot = this.getAdminListSnapshot();
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if (seeds instanceof Set || Array.isArray(seeds)) {
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for (const candidate of seeds) {
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const normalized = normalizeToHex(candidate);
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const status = this.getAccessControlStatus(candidate, adminSnapshot);
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if (normalized && !status.blacklisted) {
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sanitizedSeeds.add(normalized);
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}
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}
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} else if (seeds && typeof seeds[Symbol.iterator] === "function") {
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for (const candidate of seeds) {
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const normalized = normalizeToHex(candidate);
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const status = this.getAccessControlStatus(candidate, adminSnapshot);
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if (normalized && !status.blacklisted) {
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sanitizedSeeds.add(normalized);
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}
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}
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}
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const previousContacts =
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this.trustedContacts instanceof Set ? new Set(this.trustedContacts) : new Set();
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this.trustedSeedContacts = sanitizedSeeds;
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this.rebuildTrustedContacts(this.viewerContacts, { previous: previousContacts });
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}
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isTrustedSeedOnly() {
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return this.trustedSeedOnly === true;
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}
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logThresholdTransitions({
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eventId = "",
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reportType = "",
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previousTrusted = 0,
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nextTrusted = 0,
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} = {}) {
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const normalizedEventId = normalizeEventId(eventId);
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const normalizedType = normalizeReportType(reportType);
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if (!normalizedEventId || !normalizedType) {
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return;
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}
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const previous = Number.isFinite(previousTrusted) ? previousTrusted : 0;
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const next = Number.isFinite(nextTrusted) ? nextTrusted : 0;
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const transitions = [];
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if (AUTOPLAY_TRUST_THRESHOLD > 0) {
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const previousMet = previous >= AUTOPLAY_TRUST_THRESHOLD;
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const nextMet = next >= AUTOPLAY_TRUST_THRESHOLD;
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if (previousMet !== nextMet) {
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transitions.push({
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action: nextMet ? "autoplay-block-enabled" : "autoplay-block-cleared",
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});
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}
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}
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if (BLUR_TRUST_THRESHOLD > 0) {
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const previousMet = previous >= BLUR_TRUST_THRESHOLD;
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const nextMet = next >= BLUR_TRUST_THRESHOLD;
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if (previousMet !== nextMet) {
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transitions.push({
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action: nextMet ? "blur-enabled" : "blur-cleared",
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});
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}
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}
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if (!transitions.length) {
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return;
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}
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const channel = this.userLogger || logger.user;
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for (const entry of transitions) {
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try {
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channel.info("[moderationService] moderation threshold crossed", {
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eventId: normalizedEventId,
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reportType: normalizedType,
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trustedCount: next,
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action: entry.action,
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});
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} catch (error) {
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logger.user.warn("[moderationService] failed to log threshold transition", error);
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}
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}
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}
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getTrustedMuteWindowCutoff(nowSeconds = Date.now() / 1000) {
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const normalizedNow = ensureNumber(nowSeconds) || Date.now() / 1000;
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return normalizedNow - TRUSTED_MUTE_WINDOW_SECONDS;
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}
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pruneTrustedMuteAggregates(targetAuthors = null, { nowSeconds = Date.now() / 1000 } = {}) {
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const cutoff = this.getTrustedMuteWindowCutoff(nowSeconds);
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const targets =
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targetAuthors instanceof Set || Array.isArray(targetAuthors)
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? Array.from(targetAuthors)
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: targetAuthors && typeof targetAuthors[Symbol.iterator] === "function"
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? Array.from(targetAuthors)
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: null;
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const entries = targets
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? targets.map((author) => [author, this.trustedMutedAuthors.get(author)])
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: Array.from(this.trustedMutedAuthors.entries());
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for (const [author, aggregate] of entries) {
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if (!aggregate || !(aggregate.muters instanceof Map)) {
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continue;
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}
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// Throttle pruning: only run once per minute per author
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if (aggregate.lastPrunedAt && nowSeconds - aggregate.lastPrunedAt < 60) continue;
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aggregate.lastPrunedAt = nowSeconds;
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const expiredOwners = new Set();
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for (const [owner, updatedAt] of aggregate.muters.entries()) {
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if (ensureNumber(updatedAt) < cutoff) {
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aggregate.muters.delete(owner);
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expiredOwners.add(owner);
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}
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}
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if (aggregate.categories instanceof Map && expiredOwners.size) {
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for (const [category, muters] of aggregate.categories.entries()) {
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for (const owner of expiredOwners) {
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muters.delete(owner);
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}
|
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if (!muters.size) {
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aggregate.categories.delete(category);
|
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}
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}
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}
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aggregate.count = aggregate.muters.size;
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if (!aggregate.muters.size) {
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this.trustedMutedAuthors.delete(author);
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}
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}
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}
|
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getActiveTrustedMutersForAuthor(author) {
|
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const normalized = normalizeHex(author);
|
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if (!normalized) {
|
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return [];
|
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}
|
|
|
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const entry = this.trustedMutedAuthors.get(normalized);
|
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if (!entry || !(entry.muters instanceof Map)) {
|
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return [];
|
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}
|
|
|
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this.pruneTrustedMuteAggregates([normalized]);
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const refreshed = this.trustedMutedAuthors.get(normalized);
|
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if (!refreshed || !(refreshed.muters instanceof Map)) {
|
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return [];
|
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}
|
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|
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return Array.from(refreshed.muters.keys());
|
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}
|
|
|
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getTrustedMuteCountsForAuthor(author) {
|
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const normalized = normalizeHex(author);
|
|
if (!normalized) {
|
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return { total: 0, categories: {} };
|
|
}
|
|
|
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const entry = this.trustedMutedAuthors.get(normalized);
|
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if (!entry || !(entry.muters instanceof Map)) {
|
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return { total: 0, categories: {} };
|
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}
|
|
|
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this.pruneTrustedMuteAggregates([normalized]);
|
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const refreshed = this.trustedMutedAuthors.get(normalized);
|
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if (!refreshed || !(refreshed.muters instanceof Map)) {
|
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return { total: 0, categories: {} };
|
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}
|
|
|
|
const categories = {};
|
|
if (refreshed.categories instanceof Map) {
|
|
for (const [category, muters] of refreshed.categories.entries()) {
|
|
if (typeof category !== "string" || !category.trim()) {
|
|
continue;
|
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}
|
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categories[category] = muters instanceof Map ? muters.size : 0;
|
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}
|
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}
|
|
|
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return {
|
|
total: refreshed.muters.size,
|
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categories,
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Batch retrieval of moderation info for multiple authors.
|
|
* Optimized to prune aggregates in one pass.
|
|
*
|
|
* @param {string[]} authors - List of author pubkeys.
|
|
* @returns {Map<string, object>} Map of author -> { trustedMuted, trustedMuters, trustedMuteCountTotal, trustedMuteCountsByCategory }
|
|
*/
|
|
getModerationInfoForAuthors(authors) {
|
|
const results = new Map();
|
|
const uniqueAuthors = new Set();
|
|
|
|
if (Array.isArray(authors)) {
|
|
for (const author of authors) {
|
|
const normalized = normalizeHex(author);
|
|
if (normalized) {
|
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uniqueAuthors.add(normalized);
|
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}
|
|
}
|
|
} else if (authors instanceof Set) {
|
|
for (const author of authors) {
|
|
const normalized = normalizeHex(author);
|
|
if (normalized) {
|
|
uniqueAuthors.add(normalized);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!uniqueAuthors.size) {
|
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return results;
|
|
}
|
|
|
|
this.pruneTrustedMuteAggregates(Array.from(uniqueAuthors));
|
|
|
|
for (const author of uniqueAuthors) {
|
|
const entry = this.trustedMutedAuthors.get(author);
|
|
let trustedMuted = false;
|
|
let trustedMuters = [];
|
|
let trustedMuteCountTotal = 0;
|
|
let trustedMuteCountsByCategory = null;
|
|
|
|
if (entry && entry.muters instanceof Map && entry.muters.size > 0) {
|
|
trustedMuted = true;
|
|
trustedMuters = Array.from(entry.muters.keys());
|
|
trustedMuteCountTotal = entry.muters.size;
|
|
|
|
if (entry.categories instanceof Map) {
|
|
trustedMuteCountsByCategory = {};
|
|
for (const [category, muters] of entry.categories.entries()) {
|
|
if (typeof category === "string" && category.trim()) {
|
|
trustedMuteCountsByCategory[category] = muters.size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
results.set(author, {
|
|
trustedMuted,
|
|
trustedMuters,
|
|
trustedMuteCountTotal,
|
|
trustedMuteCountsByCategory,
|
|
});
|
|
}
|
|
|
|
return results;
|
|
}
|
|
|
|
setLogger(newLogger) {
|
|
this.log = normalizeLogger(newLogger);
|
|
}
|
|
|
|
setNostrClient(client) {
|
|
if (client && client !== this.nostrClient) {
|
|
this.nostrClient = client;
|
|
}
|
|
}
|
|
|
|
setUserBlocks(manager) {
|
|
if (manager === this.userBlocks) {
|
|
return;
|
|
}
|
|
|
|
if (typeof this.userBlockUnsubscribe === "function") {
|
|
try {
|
|
this.userBlockUnsubscribe();
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to teardown user block listener", error);
|
|
}
|
|
}
|
|
|
|
this.userBlockUnsubscribe = null;
|
|
this.userBlocks = manager || null;
|
|
|
|
if (!this.userBlocks || typeof this.userBlocks.on !== "function") {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
const unsubscribe = this.userBlocks.on(
|
|
USER_BLOCK_EVENTS.CHANGE,
|
|
(detail) => {
|
|
this.queueUserBlockRefresh(detail);
|
|
},
|
|
);
|
|
|
|
if (typeof unsubscribe === "function") {
|
|
this.userBlockUnsubscribe = () => {
|
|
try {
|
|
unsubscribe();
|
|
} catch (error) {
|
|
this.log(
|
|
"[moderationService] failed to remove user block listener",
|
|
error,
|
|
);
|
|
}
|
|
};
|
|
}
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to subscribe to user block events", error);
|
|
}
|
|
}
|
|
|
|
setAccessControl(control) {
|
|
if (control && control !== this.accessControl) {
|
|
this.accessControl = control;
|
|
}
|
|
}
|
|
|
|
on(eventName, handler) {
|
|
return this.emitter.on(eventName, handler);
|
|
}
|
|
|
|
emit(eventName, detail) {
|
|
this.emitter.emit(eventName, detail);
|
|
}
|
|
|
|
queueUserBlockRefresh(detail = {}) {
|
|
const previous = this.userBlockRefreshQueue || Promise.resolve();
|
|
const action = typeof detail?.action === "string" ? detail.action : "";
|
|
const targetPubkey = detail?.targetPubkey || detail?.pubkey || "";
|
|
const normalizedTarget = normalizeHex(targetPubkey);
|
|
|
|
const next = previous
|
|
.catch(() => {})
|
|
.then(async () => {
|
|
this.recomputeAllSummaries();
|
|
if (this.activeEventIds && this.activeEventIds.size) {
|
|
await this.refreshActiveReportSubscriptions();
|
|
}
|
|
this.emit("user-blocks", {
|
|
action,
|
|
targetPubkey: normalizedTarget,
|
|
});
|
|
});
|
|
|
|
this.userBlockRefreshQueue = next.catch((error) => {
|
|
this.log("[moderationService] failed to refresh after user block update", error);
|
|
throw error;
|
|
});
|
|
|
|
return this.userBlockRefreshQueue;
|
|
}
|
|
|
|
clearTrustedMuteTracking({ previousContacts = null } = {}) {
|
|
void previousContacts;
|
|
|
|
// Clear legacy individual subscriptions
|
|
for (const [pubkey, entry] of this.trustedMuteSubscriptions.entries()) {
|
|
if (entry && typeof entry.unsub === "function") {
|
|
try {
|
|
entry.unsub();
|
|
} catch (error) {
|
|
this.log(`(moderationService) failed to teardown mute subscription for ${pubkey}`, error);
|
|
}
|
|
}
|
|
}
|
|
this.trustedMuteSubscriptions.clear();
|
|
|
|
// Clear batched subscriptions
|
|
this.teardownBatchedMuteSubscriptions();
|
|
|
|
if (this.muteRefreshTimer) {
|
|
clearTimeout(this.muteRefreshTimer);
|
|
this.muteRefreshTimer = null;
|
|
}
|
|
|
|
for (const [author, aggregate] of this.trustedMutedAuthors.entries()) {
|
|
if (aggregate && aggregate.muters instanceof Map) {
|
|
aggregate.muters.clear();
|
|
}
|
|
}
|
|
|
|
this.trustedMuteLists.clear();
|
|
this.trustedMutedAuthors.clear();
|
|
this.viewerMuteList.clear();
|
|
this.viewerMuteEventId = "";
|
|
this.viewerMuteUpdatedAt = 0;
|
|
|
|
this.emit("trusted-mutes", { total: 0 });
|
|
|
|
const emptyPrevious = new Set();
|
|
this.rebuildTrustedContacts(new Set(), { previous: emptyPrevious });
|
|
}
|
|
|
|
teardownBatchedMuteSubscriptions() {
|
|
if (Array.isArray(this.batchedMuteSubscriptions)) {
|
|
for (const sub of this.batchedMuteSubscriptions) {
|
|
if (sub && typeof sub.unsub === "function") {
|
|
try {
|
|
sub.unsub();
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to unsub batched subscription", error);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
this.batchedMuteSubscriptions = [];
|
|
}
|
|
|
|
isTrustedMuteOwner(pubkey) {
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
return false;
|
|
}
|
|
if (normalized === this.viewerPubkey) {
|
|
return true;
|
|
}
|
|
return this.trustedContacts.has(normalized);
|
|
}
|
|
|
|
reconcileTrustedMuteSubscriptions(previousSet, nextSet) {
|
|
this.scheduleTrustedMuteSubscriptionRefresh();
|
|
}
|
|
|
|
scheduleTrustedMuteSubscriptionRefresh() {
|
|
if (this.muteRefreshTimer) {
|
|
clearTimeout(this.muteRefreshTimer);
|
|
}
|
|
|
|
this.muteRefreshTimer = setTimeout(() => {
|
|
this.refreshTrustedMuteSubscriptions().catch((error) => {
|
|
this.log("[moderationService] refreshTrustedMuteSubscriptions failed", error);
|
|
});
|
|
}, DEBOUNCE_DELAY_MS);
|
|
}
|
|
|
|
async refreshTrustedMuteSubscriptions() {
|
|
this.muteRefreshTimer = null;
|
|
|
|
const targets = new Set();
|
|
if (this.trustedContacts instanceof Set) {
|
|
for (const contact of this.trustedContacts) {
|
|
targets.add(contact);
|
|
}
|
|
}
|
|
if (this.viewerPubkey) {
|
|
targets.add(this.viewerPubkey);
|
|
}
|
|
|
|
if (targets.size === 0) {
|
|
this.teardownBatchedMuteSubscriptions();
|
|
return;
|
|
}
|
|
|
|
try {
|
|
await this.ensurePool();
|
|
} catch (error) {
|
|
this.log("[moderationService] ensurePool failed during mute refresh", error);
|
|
return;
|
|
}
|
|
|
|
const relays = resolveRelayList(this.nostrClient);
|
|
if (!relays.length) {
|
|
this.log("[moderationService] no relays available for mute refresh");
|
|
return;
|
|
}
|
|
|
|
this.teardownBatchedMuteSubscriptions();
|
|
|
|
const authors = Array.from(targets);
|
|
const BATCH_SIZE = 400;
|
|
const chunks = [];
|
|
|
|
for (let i = 0; i < authors.length; i += BATCH_SIZE) {
|
|
chunks.push(authors.slice(i, i + BATCH_SIZE));
|
|
}
|
|
|
|
this.log(`[moderationService] Refreshing mute subscriptions for ${authors.length} authors in ${chunks.length} batches`);
|
|
|
|
for (const chunk of chunks) {
|
|
const filter = { kinds: [KIND_MUTE_LIST], authors: chunk };
|
|
try {
|
|
const sub = this.nostrClient.pool.sub(relays, [filter]);
|
|
sub.on("event", (event) => {
|
|
this.ingestTrustedMuteEvent(event);
|
|
});
|
|
sub.on("eose", () => {
|
|
// Optional: handle EOSE if needed, e.g., for loading indicators
|
|
});
|
|
this.batchedMuteSubscriptions.push(sub);
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to create batched subscription", error);
|
|
}
|
|
}
|
|
}
|
|
|
|
async ensureUserBlocksLoaded(pubkey) {
|
|
if (!this.userBlocks || typeof this.userBlocks.ensureLoaded !== "function") {
|
|
return;
|
|
}
|
|
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
await this.userBlocks.ensureLoaded(normalized);
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to load user block list", error);
|
|
}
|
|
}
|
|
|
|
async subscribeToTrustedMuteList(pubkey) {
|
|
// Deprecated: Logic moved to batched subscription refresh
|
|
return this.scheduleTrustedMuteSubscriptionRefresh();
|
|
}
|
|
|
|
teardownTrustedMuteSubscription(pubkey) {
|
|
// Deprecated: Logic moved to batched subscription refresh
|
|
return this.scheduleTrustedMuteSubscriptionRefresh();
|
|
}
|
|
|
|
replaceTrustedMuteList(ownerPubkey, mutedAuthors, { createdAt = 0, eventId = "" } = {}) {
|
|
const owner = normalizeHex(ownerPubkey);
|
|
if (!owner) {
|
|
return;
|
|
}
|
|
|
|
const sanitizedAuthors = new Map();
|
|
const addAuthor = (candidate, category = "") => {
|
|
const normalized = normalizeToHex(candidate);
|
|
if (!normalized) {
|
|
return;
|
|
}
|
|
const normalizedCategory = normalizeMuteCategory(category);
|
|
sanitizedAuthors.set(normalized, normalizedCategory);
|
|
};
|
|
|
|
if (mutedAuthors instanceof Map) {
|
|
for (const [candidate, category] of mutedAuthors.entries()) {
|
|
addAuthor(candidate, category);
|
|
}
|
|
} else if (mutedAuthors instanceof Set || Array.isArray(mutedAuthors)) {
|
|
for (const candidate of mutedAuthors) {
|
|
if (!candidate) {
|
|
continue;
|
|
}
|
|
if (typeof candidate === "object") {
|
|
addAuthor(candidate.pubkey || candidate.author, candidate.category || candidate.reason);
|
|
continue;
|
|
}
|
|
addAuthor(candidate);
|
|
}
|
|
} else if (mutedAuthors && typeof mutedAuthors[Symbol.iterator] === "function") {
|
|
for (const candidate of mutedAuthors) {
|
|
if (!candidate) {
|
|
continue;
|
|
}
|
|
if (typeof candidate === "object") {
|
|
addAuthor(candidate.pubkey || candidate.author, candidate.category || candidate.reason);
|
|
continue;
|
|
}
|
|
addAuthor(candidate);
|
|
}
|
|
}
|
|
|
|
const touchedAuthors = new Set();
|
|
const previous = this.trustedMuteLists.get(owner);
|
|
if (previous && previous.authors instanceof Map) {
|
|
for (const [author, category] of previous.authors.entries()) {
|
|
const aggregate = this.trustedMutedAuthors.get(author);
|
|
if (!aggregate || !(aggregate.muters instanceof Map)) {
|
|
continue;
|
|
}
|
|
aggregate.muters.delete(owner);
|
|
if (aggregate.categories instanceof Map) {
|
|
if (category) {
|
|
const categoryMuters = aggregate.categories.get(category);
|
|
if (categoryMuters instanceof Map) {
|
|
categoryMuters.delete(owner);
|
|
if (!categoryMuters.size) {
|
|
aggregate.categories.delete(category);
|
|
}
|
|
}
|
|
} else {
|
|
for (const [existingCategory, muters] of aggregate.categories.entries()) {
|
|
muters.delete(owner);
|
|
if (!muters.size) {
|
|
aggregate.categories.delete(existingCategory);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
touchedAuthors.add(author);
|
|
}
|
|
}
|
|
|
|
const normalizedEventId = normalizeEventId(eventId);
|
|
const normalizedCreatedAt = ensureNumber(createdAt);
|
|
|
|
if (owner === this.viewerPubkey) {
|
|
this.viewerMuteList = new Set(sanitizedAuthors);
|
|
this.viewerMuteEventId = normalizedEventId || "";
|
|
this.viewerMuteUpdatedAt = normalizedCreatedAt;
|
|
}
|
|
|
|
if (!sanitizedAuthors.size) {
|
|
this.trustedMuteLists.delete(owner);
|
|
} else {
|
|
this.trustedMuteLists.set(owner, {
|
|
authors: sanitizedAuthors,
|
|
updatedAt: normalizedCreatedAt,
|
|
eventId: normalizedEventId,
|
|
});
|
|
|
|
for (const [author, category] of sanitizedAuthors.entries()) {
|
|
let aggregate = this.trustedMutedAuthors.get(author);
|
|
if (!aggregate) {
|
|
aggregate = { muters: new Map(), categories: new Map(), count: 0 };
|
|
this.trustedMutedAuthors.set(author, aggregate);
|
|
}
|
|
aggregate.muters.set(owner, normalizedCreatedAt);
|
|
if (category) {
|
|
let categoryMuters = aggregate.categories.get(category);
|
|
if (!categoryMuters) {
|
|
categoryMuters = new Map();
|
|
aggregate.categories.set(category, categoryMuters);
|
|
}
|
|
categoryMuters.set(owner, normalizedCreatedAt);
|
|
}
|
|
touchedAuthors.add(author);
|
|
}
|
|
}
|
|
|
|
this.pruneTrustedMuteAggregates(touchedAuthors);
|
|
this.emit("trusted-mutes", { total: this.trustedMutedAuthors.size, owner });
|
|
}
|
|
|
|
applyTrustedMuteEvent(ownerPubkey, event) {
|
|
const owner = normalizeHex(ownerPubkey);
|
|
if (!owner || !this.isTrustedMuteOwner(owner)) {
|
|
return;
|
|
}
|
|
|
|
if (!event || event.kind !== KIND_MUTE_LIST) {
|
|
this.replaceTrustedMuteList(owner, new Set(), { createdAt: 0, eventId: "" });
|
|
return;
|
|
}
|
|
|
|
const createdAt = ensureNumber(event.created_at);
|
|
const eventId = typeof event.id === "string" ? event.id : "";
|
|
|
|
const existing = this.trustedMuteLists.get(owner);
|
|
if (existing) {
|
|
const existingEventId = typeof existing.eventId === "string" ? existing.eventId : "";
|
|
if (existingEventId && normalizeEventId(existingEventId) === normalizeEventId(eventId)) {
|
|
return;
|
|
}
|
|
if (ensureNumber(existing.updatedAt) > createdAt && normalizeEventId(eventId)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
const mutedAuthors = new Map();
|
|
if (Array.isArray(event.tags)) {
|
|
for (const tag of event.tags) {
|
|
if (!Array.isArray(tag) || tag.length < 2) {
|
|
continue;
|
|
}
|
|
if (tag[0] !== "p") {
|
|
continue;
|
|
}
|
|
const normalized = normalizeToHex(tag[1]);
|
|
if (normalized) {
|
|
const category = extractMuteCategoryFromTag(tag);
|
|
mutedAuthors.set(normalized, category);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.replaceTrustedMuteList(owner, mutedAuthors, { createdAt, eventId });
|
|
}
|
|
|
|
ingestTrustedMuteEvent(event) {
|
|
if (!event || event.kind !== KIND_MUTE_LIST) {
|
|
return;
|
|
}
|
|
|
|
const owner = normalizeHex(event.pubkey);
|
|
if (!owner || !this.isTrustedMuteOwner(owner)) {
|
|
return;
|
|
}
|
|
|
|
this.applyTrustedMuteEvent(owner, event);
|
|
}
|
|
|
|
getViewerMutedAuthors() {
|
|
return Array.from(this.viewerMuteList);
|
|
}
|
|
|
|
isAuthorMutedByViewer(pubkey) {
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
return false;
|
|
}
|
|
return this.viewerMuteList.has(normalized);
|
|
}
|
|
|
|
loadLocalMutes(pubkey) {
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
return;
|
|
}
|
|
|
|
const storage = resolveStorage();
|
|
if (!storage) {
|
|
return;
|
|
}
|
|
|
|
const key = `bitvid:user-mutes:local:v1:${normalized}`;
|
|
let loaded = [];
|
|
|
|
try {
|
|
const raw = storage.getItem(key);
|
|
if (raw) {
|
|
const parsed = JSON.parse(raw);
|
|
if (Array.isArray(parsed)) {
|
|
loaded = parsed;
|
|
}
|
|
}
|
|
} catch (error) {
|
|
this.log(
|
|
`[moderationService] failed to load local mutes for ${normalized}`,
|
|
error,
|
|
);
|
|
}
|
|
|
|
const mutes = new Set();
|
|
for (const item of loaded) {
|
|
const target = normalizeHex(item);
|
|
if (target && target !== normalized) {
|
|
mutes.add(target);
|
|
}
|
|
}
|
|
|
|
this.replaceTrustedMuteList(normalized, mutes, {
|
|
createdAt: Date.now() / 1000,
|
|
eventId: `local-${Date.now()}`,
|
|
});
|
|
}
|
|
|
|
saveLocalMutes(pubkey, muteSet) {
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
return;
|
|
}
|
|
|
|
const storage = resolveStorage();
|
|
if (!storage) {
|
|
return;
|
|
}
|
|
|
|
const list = [];
|
|
if (muteSet instanceof Set || Array.isArray(muteSet)) {
|
|
for (const item of muteSet) {
|
|
const target = normalizeHex(item);
|
|
if (target && target !== normalized) {
|
|
list.push(target);
|
|
}
|
|
}
|
|
}
|
|
|
|
const key = `bitvid:user-mutes:local:v1:${normalized}`;
|
|
try {
|
|
if (!list.length) {
|
|
storage.removeItem(key);
|
|
} else {
|
|
storage.setItem(key, JSON.stringify(list));
|
|
}
|
|
} catch (error) {
|
|
this.log(
|
|
`[moderationService] failed to save local mutes for ${normalized}`,
|
|
error,
|
|
);
|
|
}
|
|
}
|
|
|
|
async ensureViewerMuteListLoaded(pubkey = this.viewerPubkey) {
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
this.viewerMuteList.clear();
|
|
this.viewerMuteEventId = "";
|
|
this.viewerMuteUpdatedAt = 0;
|
|
return;
|
|
}
|
|
|
|
if (this.trustedMuteLists.has(normalized)) {
|
|
return;
|
|
}
|
|
|
|
if (this.viewerIsSessionActor && normalized === this.viewerPubkey) {
|
|
this.loadLocalMutes(normalized);
|
|
return;
|
|
}
|
|
|
|
if (this.viewerMutePromise) {
|
|
try {
|
|
await this.viewerMutePromise;
|
|
} catch (_) {
|
|
/* noop */
|
|
}
|
|
return;
|
|
}
|
|
|
|
this.viewerMutePromise = this.subscribeToTrustedMuteList(normalized)
|
|
.catch((error) => {
|
|
this.log("[moderationService] failed to load viewer mute list", error);
|
|
throw error;
|
|
})
|
|
.finally(() => {
|
|
this.viewerMutePromise = null;
|
|
});
|
|
|
|
try {
|
|
await this.viewerMutePromise;
|
|
} catch (_) {
|
|
/* noop */
|
|
}
|
|
}
|
|
|
|
async publishViewerMuteList() {
|
|
throw new Error("Mute list publishing is now handled by userBlocks.");
|
|
}
|
|
|
|
async addAuthorToViewerMuteList(pubkey) {
|
|
const viewer = normalizeHex(this.viewerPubkey);
|
|
if (!viewer) {
|
|
const error = new Error("viewer-not-logged-in");
|
|
error.code = "viewer-not-logged-in";
|
|
throw error;
|
|
}
|
|
|
|
if (this.userBlocks && typeof this.userBlocks.addMute === "function") {
|
|
return this.userBlocks.addMute(pubkey, viewer);
|
|
}
|
|
|
|
throw new Error("Mute list management is delegated to userBlocks.");
|
|
}
|
|
|
|
async removeAuthorFromViewerMuteList(pubkey) {
|
|
const viewer = normalizeHex(this.viewerPubkey);
|
|
if (!viewer) {
|
|
const error = new Error("viewer-not-logged-in");
|
|
error.code = "viewer-not-logged-in";
|
|
throw error;
|
|
}
|
|
|
|
if (this.userBlocks && typeof this.userBlocks.removeMute === "function") {
|
|
return this.userBlocks.removeMute(pubkey, viewer);
|
|
}
|
|
|
|
throw new Error("Mute list management is delegated to userBlocks.");
|
|
}
|
|
|
|
/**
|
|
* Checks if an author is muted by any of the trusted contacts.
|
|
*
|
|
* @param {string} pubkey - The author's pubkey.
|
|
* @returns {boolean} True if at least one trusted contact mutes this author.
|
|
*/
|
|
isAuthorMutedByTrusted(pubkey) {
|
|
const muters = this.getActiveTrustedMutersForAuthor(pubkey);
|
|
return muters.length > 0;
|
|
}
|
|
|
|
getTrustedMutersForAuthor(pubkey) {
|
|
return this.getActiveTrustedMutersForAuthor(pubkey);
|
|
}
|
|
|
|
/**
|
|
* Checks if a pubkey is blocked or muted by the current viewer.
|
|
* Delegates to the UserBlocks manager.
|
|
*
|
|
* @param {string} pubkey - The pubkey to check.
|
|
* @returns {boolean} True if blocked or muted by viewer.
|
|
*/
|
|
isPubkeyBlockedByViewer(pubkey) {
|
|
if (!this.userBlocks || typeof this.userBlocks.isBlocked !== "function") {
|
|
return false;
|
|
}
|
|
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
return false;
|
|
}
|
|
|
|
try {
|
|
return this.userBlocks.isBlocked(normalized) === true;
|
|
} catch (error) {
|
|
this.log("[moderationService] user block lookup failed", error);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
getAdminListSnapshot() {
|
|
const snapshot = createEmptyAdminSnapshot();
|
|
|
|
if (!this.accessControl) {
|
|
return snapshot;
|
|
}
|
|
|
|
let whitelist = [];
|
|
let blacklist = [];
|
|
|
|
if (typeof this.accessControl.getWhitelist === "function") {
|
|
try {
|
|
whitelist = this.accessControl.getWhitelist() || [];
|
|
} catch (error) {
|
|
this.log("[moderationService] accessControl.getWhitelist threw", error);
|
|
}
|
|
}
|
|
|
|
if (typeof this.accessControl.getBlacklist === "function") {
|
|
try {
|
|
blacklist = this.accessControl.getBlacklist() || [];
|
|
} catch (error) {
|
|
this.log("[moderationService] accessControl.getBlacklist threw", error);
|
|
}
|
|
}
|
|
|
|
for (const entry of whitelist) {
|
|
if (typeof entry !== "string") {
|
|
continue;
|
|
}
|
|
const trimmed = entry.trim();
|
|
if (!trimmed) {
|
|
continue;
|
|
}
|
|
snapshot.whitelist.add(trimmed);
|
|
const decoded = decodeToHex(trimmed);
|
|
if (decoded) {
|
|
snapshot.whitelistHex.add(decoded);
|
|
}
|
|
}
|
|
|
|
for (const entry of blacklist) {
|
|
if (typeof entry !== "string") {
|
|
continue;
|
|
}
|
|
const trimmed = entry.trim();
|
|
if (!trimmed) {
|
|
continue;
|
|
}
|
|
snapshot.blacklist.add(trimmed);
|
|
const decoded = decodeToHex(trimmed);
|
|
if (decoded) {
|
|
snapshot.blacklistHex.add(decoded);
|
|
}
|
|
}
|
|
|
|
return snapshot;
|
|
}
|
|
|
|
getAccessControlStatus(candidate, snapshot = null) {
|
|
const resolvedSnapshot = snapshot && typeof snapshot === "object" ? snapshot : this.getAdminListSnapshot();
|
|
const whitelist =
|
|
resolvedSnapshot?.whitelist instanceof Set
|
|
? resolvedSnapshot.whitelist
|
|
: new Set();
|
|
const whitelistHex =
|
|
resolvedSnapshot?.whitelistHex instanceof Set
|
|
? resolvedSnapshot.whitelistHex
|
|
: new Set();
|
|
const blacklist =
|
|
resolvedSnapshot?.blacklist instanceof Set
|
|
? resolvedSnapshot.blacklist
|
|
: new Set();
|
|
const blacklistHex =
|
|
resolvedSnapshot?.blacklistHex instanceof Set
|
|
? resolvedSnapshot.blacklistHex
|
|
: new Set();
|
|
|
|
const hex = normalizeToHex(candidate);
|
|
const status = {
|
|
hex,
|
|
whitelisted: false,
|
|
blacklisted: false,
|
|
npub: "",
|
|
};
|
|
|
|
if (hex) {
|
|
if (blacklistHex.has(hex)) {
|
|
status.blacklisted = true;
|
|
return status;
|
|
}
|
|
if (whitelistHex.has(hex)) {
|
|
status.whitelisted = true;
|
|
status.npub = encodeToNpub(hex) || "";
|
|
return status;
|
|
}
|
|
}
|
|
|
|
const encoded = hex ? encodeToNpub(hex) : "";
|
|
if (encoded) {
|
|
status.npub = encoded;
|
|
if (blacklist.has(encoded)) {
|
|
status.blacklisted = true;
|
|
return status;
|
|
}
|
|
if (whitelist.has(encoded)) {
|
|
status.whitelisted = true;
|
|
return status;
|
|
}
|
|
}
|
|
|
|
if (typeof candidate === "string" && !status.npub) {
|
|
const trimmed = candidate.trim();
|
|
if (trimmed && (blacklist.has(trimmed) || whitelist.has(trimmed))) {
|
|
status.npub = trimmed;
|
|
if (blacklist.has(trimmed)) {
|
|
status.blacklisted = true;
|
|
} else if (whitelist.has(trimmed)) {
|
|
status.whitelisted = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
async ensurePool() {
|
|
if (!this.nostrClient || typeof this.nostrClient.ensurePool !== "function") {
|
|
throw new Error("nostr-client-unavailable");
|
|
}
|
|
return this.nostrClient.ensurePool();
|
|
}
|
|
|
|
/**
|
|
* Checks the current Nostr client state and updates the viewer if changed.
|
|
* Useful when the user logs in or switches accounts externally.
|
|
*
|
|
* @returns {Promise<string>} The active viewer pubkey.
|
|
*/
|
|
async refreshViewerFromClient() {
|
|
const clientPubkey = normalizeHex(
|
|
this.nostrClient?.pubkey || this.nostrClient?.sessionActor?.pubkey,
|
|
);
|
|
if (clientPubkey === this.viewerPubkey) {
|
|
if (this.contactListPromise) {
|
|
try {
|
|
await this.contactListPromise;
|
|
} catch (error) {
|
|
this.log("[moderationService] contact hydration failed", error);
|
|
}
|
|
}
|
|
return this.viewerPubkey;
|
|
}
|
|
return this.setViewerPubkey(clientPubkey);
|
|
}
|
|
|
|
/**
|
|
* Switches the active "Viewer" context.
|
|
* This reloads the trusted contact list (Kind 3) for the new user,
|
|
* effectively rebuilding the "Web of Trust" graph.
|
|
*
|
|
* @param {string} pubkey - The public key of the new viewer.
|
|
* @returns {Promise<string>} The normalized pubkey of the new viewer.
|
|
*/
|
|
async setViewerPubkey(pubkey) {
|
|
const normalized = normalizeHex(pubkey);
|
|
if (normalized === this.viewerPubkey && this.contactListPromise) {
|
|
try {
|
|
await this.contactListPromise;
|
|
} catch (error) {
|
|
this.log("[moderationService] contact hydration failed", error);
|
|
}
|
|
await this.ensureUserBlocksLoaded(normalized);
|
|
return this.viewerPubkey;
|
|
}
|
|
|
|
const previousContacts =
|
|
this.trustedContacts instanceof Set ? new Set(this.trustedContacts) : new Set();
|
|
|
|
this.viewerPubkey = normalized;
|
|
|
|
const loggedInPubkey = normalizeHex(this.nostrClient?.pubkey);
|
|
const sessionPubkey = normalizeHex(this.nostrClient?.sessionActor?.pubkey);
|
|
|
|
this.viewerIsSessionActor =
|
|
!!normalized && !loggedInPubkey && normalized === sessionPubkey;
|
|
|
|
this.clearTrustedMuteTracking({ previousContacts });
|
|
|
|
if (this.contactSubscription && typeof this.contactSubscription.unsub === "function") {
|
|
try {
|
|
this.contactSubscription.unsub();
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to teardown contact subscription", error);
|
|
}
|
|
}
|
|
this.contactSubscription = null;
|
|
|
|
if (!normalized) {
|
|
await this.ensureUserBlocksLoaded(normalized);
|
|
return this.viewerPubkey;
|
|
}
|
|
|
|
this.contactListPromise = this.fetchTrustedContacts(normalized)
|
|
.catch((error) => {
|
|
this.log("[moderationService] failed to load contact list", error);
|
|
return null;
|
|
})
|
|
.finally(() => {
|
|
this.contactListPromise = null;
|
|
});
|
|
|
|
try {
|
|
await this.contactListPromise;
|
|
} catch (error) {
|
|
this.log("[moderationService] contact promise rejected", error);
|
|
}
|
|
|
|
this.subscribeToContactList(normalized).catch((error) => {
|
|
this.log("[moderationService] failed to subscribe to contact list", error);
|
|
});
|
|
|
|
await this.ensureUserBlocksLoaded(normalized);
|
|
await this.ensureViewerMuteListLoaded(normalized);
|
|
return this.viewerPubkey;
|
|
}
|
|
|
|
async fetchTrustedContacts(pubkey) {
|
|
const normalized = normalizeHex(pubkey);
|
|
const previousContacts =
|
|
this.trustedContacts instanceof Set ? new Set(this.trustedContacts) : new Set();
|
|
if (!normalized) {
|
|
this.clearTrustedMuteTracking({ previousContacts });
|
|
return;
|
|
}
|
|
|
|
try {
|
|
await this.ensurePool();
|
|
} catch (error) {
|
|
this.log("[moderationService] ensurePool failed while fetching contacts", error);
|
|
return;
|
|
}
|
|
|
|
const relays = resolveRelayList(this.nostrClient);
|
|
if (!relays.length) {
|
|
this.clearTrustedMuteTracking({ previousContacts });
|
|
return;
|
|
}
|
|
|
|
const filter = { kinds: [3], authors: [normalized], limit: 1 };
|
|
|
|
let events = [];
|
|
try {
|
|
events = await this.nostrClient.pool.list(relays, [filter]);
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to list contact events", error);
|
|
events = [];
|
|
}
|
|
|
|
if (!Array.isArray(events) || !events.length) {
|
|
this.clearTrustedMuteTracking({ previousContacts });
|
|
return;
|
|
}
|
|
|
|
let latest = events[0];
|
|
for (const event of events) {
|
|
if (!event || typeof event.created_at !== "number") {
|
|
continue;
|
|
}
|
|
if (!latest || ensureNumber(event.created_at) > ensureNumber(latest.created_at)) {
|
|
latest = event;
|
|
}
|
|
}
|
|
|
|
this.applyContactEvent(latest, { previous: previousContacts });
|
|
}
|
|
|
|
applyContactEvent(event, { previous = null } = {}) {
|
|
const previousContacts =
|
|
previous instanceof Set
|
|
? new Set(previous)
|
|
: this.trustedContacts instanceof Set
|
|
? new Set(this.trustedContacts)
|
|
: new Set();
|
|
|
|
if (!event || !Array.isArray(event.tags)) {
|
|
this.clearTrustedMuteTracking({ previousContacts });
|
|
return;
|
|
}
|
|
|
|
if (event.id && event.id === this.lastContactEventId) {
|
|
return;
|
|
}
|
|
|
|
const nextSet = new Set();
|
|
for (const tag of event.tags) {
|
|
if (!Array.isArray(tag) || tag[0] !== "p") {
|
|
continue;
|
|
}
|
|
const candidate = normalizeHex(tag[1]);
|
|
if (candidate) {
|
|
nextSet.add(candidate);
|
|
}
|
|
}
|
|
|
|
if (this.viewerContacts instanceof Set && this.viewerContacts.size === nextSet.size) {
|
|
let changed = false;
|
|
for (const value of nextSet) {
|
|
if (!this.viewerContacts.has(value)) {
|
|
changed = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!changed) {
|
|
if (event.id) {
|
|
this.lastContactEventId = event.id;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (event.id) {
|
|
this.lastContactEventId = event.id;
|
|
}
|
|
|
|
this.rebuildTrustedContacts(nextSet, { previous: previousContacts });
|
|
}
|
|
|
|
async subscribeToContactList(pubkey) {
|
|
const normalized = normalizeHex(pubkey);
|
|
if (!normalized) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
await this.ensurePool();
|
|
} catch (error) {
|
|
this.log("[moderationService] ensurePool failed while subscribing to contacts", error);
|
|
return;
|
|
}
|
|
|
|
const relays = resolveRelayList(this.nostrClient);
|
|
if (!relays.length) {
|
|
return;
|
|
}
|
|
|
|
const filter = { kinds: [3], authors: [normalized], limit: 1 };
|
|
|
|
try {
|
|
const sub = this.nostrClient.pool.sub(relays, [filter]);
|
|
sub.on("event", (event) => {
|
|
this.applyContactEvent(event);
|
|
});
|
|
sub.on("eose", () => {});
|
|
this.contactSubscription = {
|
|
unsub: typeof sub.unsub === "function" ? () => sub.unsub() : null,
|
|
};
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to create contact subscription", error);
|
|
}
|
|
}
|
|
|
|
async setActiveEventIds(ids = []) {
|
|
const nextIds = new Set();
|
|
if (Array.isArray(ids) || ids instanceof Set) {
|
|
for (const value of ids) {
|
|
const normalized = normalizeEventId(value);
|
|
if (normalized) {
|
|
nextIds.add(normalized);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (const existing of Array.from(this.activeSubscriptions.keys())) {
|
|
if (!nextIds.has(existing)) {
|
|
this.teardownReportSubscription(existing);
|
|
}
|
|
}
|
|
|
|
const tasks = [];
|
|
for (const id of nextIds) {
|
|
if (this.activeSubscriptions.has(id)) {
|
|
const entry = this.activeSubscriptions.get(id);
|
|
if (entry?.promise) {
|
|
tasks.push(entry.promise.catch(() => {}));
|
|
}
|
|
continue;
|
|
}
|
|
const promise = this.subscribeToReports(id);
|
|
tasks.push(promise.catch((error) => {
|
|
this.log(`(moderationService) failed to subscribe to reports for ${id}`, error);
|
|
}));
|
|
}
|
|
|
|
this.activeEventIds = nextIds;
|
|
|
|
if (tasks.length) {
|
|
await Promise.all(tasks);
|
|
}
|
|
}
|
|
|
|
async refreshActiveReportSubscriptions() {
|
|
if (!this.activeEventIds || !this.activeEventIds.size) {
|
|
return;
|
|
}
|
|
|
|
const ids = Array.from(this.activeEventIds);
|
|
for (const id of ids) {
|
|
this.teardownReportSubscription(id);
|
|
}
|
|
|
|
await this.setActiveEventIds(ids);
|
|
}
|
|
|
|
teardownReportSubscription(eventId) {
|
|
const normalized = normalizeEventId(eventId);
|
|
const entry = this.activeSubscriptions.get(normalized);
|
|
if (!entry) {
|
|
return;
|
|
}
|
|
if (typeof entry.unsub === "function") {
|
|
try {
|
|
entry.unsub();
|
|
} catch (error) {
|
|
this.log("[moderationService] failed to unsubscribe from report stream", error);
|
|
}
|
|
}
|
|
this.activeSubscriptions.delete(normalized);
|
|
}
|
|
|
|
/**
|
|
* Subscribes to Kind 1984 reports for a specific event.
|
|
*
|
|
* This fetches recent history (backfill) and opens a live subscription.
|
|
* Reports are ingested and trigger summary recomputation.
|
|
*
|
|
* @param {string} eventId - The ID of the event to monitor.
|
|
* @returns {Promise<void>}
|
|
*/
|
|
async subscribeToReports(eventId) {
|
|
const normalized = normalizeEventId(eventId);
|
|
if (!normalized) {
|
|
return;
|
|
}
|
|
|
|
const record = { unsub: null, promise: null };
|
|
this.activeSubscriptions.set(normalized, record);
|
|
|
|
record.promise = (async () => {
|
|
await this.ensurePool();
|
|
const relays = resolveRelayList(this.nostrClient);
|
|
if (!relays.length) {
|
|
return;
|
|
}
|
|
|
|
const filter = { kinds: [1984], "#e": [normalized], limit: 500 };
|
|
|
|
let events = [];
|
|
try {
|
|
events = await this.nostrClient.pool.list(relays, [filter]);
|
|
} catch (error) {
|
|
this.log(`(moderationService) failed to backfill reports for ${normalized}`, error);
|
|
events = [];
|
|
}
|
|
|
|
if (Array.isArray(events)) {
|
|
for (const event of events) {
|
|
this.ingestReportEvent(event);
|
|
}
|
|
}
|
|
|
|
try {
|
|
const sub = this.nostrClient.pool.sub(relays, [filter]);
|
|
sub.on("event", (event) => {
|
|
this.ingestReportEvent(event);
|
|
});
|
|
sub.on("eose", () => {});
|
|
record.unsub = typeof sub.unsub === "function" ? () => sub.unsub() : null;
|
|
} catch (error) {
|
|
this.log(`(moderationService) failed to subscribe to reports for ${normalized}`, error);
|
|
}
|
|
})();
|
|
|
|
try {
|
|
await record.promise;
|
|
} catch (error) {
|
|
this.log("[moderationService] report subscription promise rejected", error);
|
|
} finally {
|
|
record.promise = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ingests a NIP-56 Report event (Kind 1984).
|
|
*
|
|
* The report is indexed by `targetEventId` -> `reporter` -> `reportType`.
|
|
* Note: This method only stores the report. Trust filtering happens during
|
|
* `recomputeSummaryForEvent`.
|
|
*
|
|
* @param {object} event - The Kind 1984 event.
|
|
*/
|
|
ingestReportEvent(event) {
|
|
if (!event || event.kind !== 1984) {
|
|
return;
|
|
}
|
|
|
|
const reporter = normalizeHex(event.pubkey);
|
|
if (!reporter) {
|
|
return;
|
|
}
|
|
|
|
const targetEventId = findReportedEventId(event);
|
|
const normalizedEventId = normalizeEventId(targetEventId);
|
|
if (!normalizedEventId) {
|
|
return;
|
|
}
|
|
|
|
const reportType = extractReportType(event, normalizedEventId);
|
|
if (!reportType) {
|
|
return;
|
|
}
|
|
|
|
let eventReports = this.reportEvents.get(normalizedEventId);
|
|
if (!eventReports) {
|
|
eventReports = new Map();
|
|
this.reportEvents.set(normalizedEventId, eventReports);
|
|
}
|
|
|
|
let reporterEntry = eventReports.get(reporter);
|
|
if (!reporterEntry) {
|
|
reporterEntry = new Map();
|
|
eventReports.set(reporter, reporterEntry);
|
|
}
|
|
|
|
const existing = reporterEntry.get(reportType);
|
|
const createdAt = ensureNumber(event.created_at);
|
|
|
|
if (!existing || createdAt >= ensureNumber(existing.created_at)) {
|
|
reporterEntry.set(reportType, {
|
|
created_at: createdAt,
|
|
id: typeof event.id === "string" ? event.id : "",
|
|
});
|
|
}
|
|
|
|
this.recomputeSummaryForEvent(normalizedEventId);
|
|
}
|
|
|
|
recomputeAllSummaries() {
|
|
for (const eventId of this.reportEvents.keys()) {
|
|
this.recomputeSummaryForEvent(eventId);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Aggregates all reports for a specific event and calculates the "Trust Score".
|
|
*
|
|
* Algorithm:
|
|
* 1. Iterate over all reports for the event.
|
|
* 2. Check if the reporter is in the `trustedContacts` set (or Admin Whitelist).
|
|
* 3. If trusted, increment the count for that report type (e.g., "nudity").
|
|
* 4. Update the summary state and emit change events if thresholds are crossed.
|
|
*
|
|
* @param {string} eventId - The ID of the event to recompute.
|
|
*/
|
|
recomputeSummaryForEvent(eventId) {
|
|
const normalized = normalizeEventId(eventId);
|
|
if (!normalized) {
|
|
return;
|
|
}
|
|
|
|
const eventReports = this.reportEvents.get(normalized);
|
|
if (!eventReports || !eventReports.size) {
|
|
const previousSummary = this.reportSummaries.get(normalized);
|
|
if (previousSummary && previousSummary.types) {
|
|
for (const [type, detail] of Object.entries(previousSummary.types)) {
|
|
if (!detail || typeof detail !== "object") {
|
|
continue;
|
|
}
|
|
const previousTrusted = Number.isFinite(detail.trusted) ? detail.trusted : 0;
|
|
if (previousTrusted > 0) {
|
|
this.logThresholdTransitions({
|
|
eventId: normalized,
|
|
reportType: type,
|
|
previousTrusted,
|
|
nextTrusted: 0,
|
|
});
|
|
}
|
|
}
|
|
}
|
|
this.reportSummaries.delete(normalized);
|
|
this.emit("summary", { eventId: normalized, summary: null });
|
|
return;
|
|
}
|
|
|
|
const previousSummary = this.reportSummaries.get(normalized);
|
|
const typeStats = new Map();
|
|
let totalTrusted = 0;
|
|
const adminSnapshot = this.getAdminListSnapshot();
|
|
|
|
for (const [reporter, typeMap] of eventReports.entries()) {
|
|
const status = this.getAccessControlStatus(reporter, adminSnapshot);
|
|
const reporterHex = status.hex || normalizeHex(reporter);
|
|
if (!reporterHex) {
|
|
continue;
|
|
}
|
|
|
|
if (this.isPubkeyBlockedByViewer(reporterHex)) {
|
|
continue;
|
|
}
|
|
|
|
if (status.blacklisted) {
|
|
continue;
|
|
}
|
|
|
|
const isTrustedReporter = status.whitelisted || this.trustedContacts.has(reporterHex);
|
|
|
|
for (const [type, detail] of typeMap.entries()) {
|
|
let stats = typeStats.get(type);
|
|
if (!stats) {
|
|
stats = { trusted: 0, total: 0, latest: 0 };
|
|
typeStats.set(type, stats);
|
|
}
|
|
stats.total += 1;
|
|
const createdAt = ensureNumber(detail?.created_at);
|
|
if (createdAt > stats.latest) {
|
|
stats.latest = createdAt;
|
|
}
|
|
if (isTrustedReporter) {
|
|
stats.trusted += 1;
|
|
totalTrusted += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
const types = {};
|
|
for (const [type, stats] of typeStats.entries()) {
|
|
types[type] = {
|
|
trusted: stats.trusted,
|
|
total: stats.total,
|
|
latest: stats.latest,
|
|
};
|
|
}
|
|
|
|
if (previousSummary && previousSummary.types) {
|
|
const seen = new Set([
|
|
...Object.keys(previousSummary.types || {}),
|
|
...Object.keys(types),
|
|
]);
|
|
for (const type of seen) {
|
|
const previousEntry = previousSummary?.types?.[type];
|
|
const nextEntry = types?.[type];
|
|
const previousTrusted = Number.isFinite(previousEntry?.trusted)
|
|
? previousEntry.trusted
|
|
: 0;
|
|
const nextTrusted = Number.isFinite(nextEntry?.trusted)
|
|
? nextEntry.trusted
|
|
: 0;
|
|
if (previousTrusted !== nextTrusted) {
|
|
this.logThresholdTransitions({
|
|
eventId: normalized,
|
|
reportType: type,
|
|
previousTrusted,
|
|
nextTrusted,
|
|
});
|
|
}
|
|
}
|
|
} else {
|
|
for (const [type, stats] of Object.entries(types)) {
|
|
const nextTrusted = Number.isFinite(stats?.trusted) ? stats.trusted : 0;
|
|
if (nextTrusted > 0) {
|
|
this.logThresholdTransitions({
|
|
eventId: normalized,
|
|
reportType: type,
|
|
previousTrusted: 0,
|
|
nextTrusted,
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
const summary = {
|
|
eventId: normalized,
|
|
totalTrusted,
|
|
types,
|
|
updatedAt: Date.now(),
|
|
};
|
|
|
|
this.reportSummaries.set(normalized, summary);
|
|
this.emit("summary", { eventId: normalized, summary: cloneSummary(summary) });
|
|
}
|
|
|
|
/**
|
|
* Retrieves the current aggregated trust score for an event.
|
|
*
|
|
* @param {string} eventId - The event ID.
|
|
* @returns {object} The summary object ({ totalTrusted, types, ... }).
|
|
*/
|
|
getTrustedReportSummary(eventId) {
|
|
const normalized = normalizeEventId(eventId);
|
|
if (!normalized) {
|
|
return { eventId: "", totalTrusted: 0, types: {}, updatedAt: 0 };
|
|
}
|
|
const summary = this.reportSummaries.get(normalized);
|
|
if (!summary) {
|
|
return { eventId: normalized, totalTrusted: 0, types: {}, updatedAt: 0 };
|
|
}
|
|
return cloneSummary(summary);
|
|
}
|
|
|
|
getTrustedReporters(eventId, type) {
|
|
const normalizedEventId = normalizeEventId(eventId);
|
|
if (!normalizedEventId) {
|
|
return [];
|
|
}
|
|
|
|
const eventReports = this.reportEvents.get(normalizedEventId);
|
|
if (!eventReports || !eventReports.size) {
|
|
return [];
|
|
}
|
|
|
|
const normalizedType = normalizeReportType(type);
|
|
const results = [];
|
|
|
|
const adminSnapshot = this.getAdminListSnapshot();
|
|
|
|
for (const [reporter, typeMap] of eventReports.entries()) {
|
|
const status = this.getAccessControlStatus(reporter, adminSnapshot);
|
|
const reporterHex = status.hex || normalizeHex(reporter);
|
|
if (!reporterHex) {
|
|
continue;
|
|
}
|
|
|
|
if (this.isPubkeyBlockedByViewer(reporterHex)) {
|
|
continue;
|
|
}
|
|
|
|
if (status.blacklisted) {
|
|
continue;
|
|
}
|
|
|
|
const isTrustedReporter = status.whitelisted || this.trustedContacts.has(reporterHex);
|
|
if (!isTrustedReporter) {
|
|
continue;
|
|
}
|
|
|
|
if (normalizedType) {
|
|
const detail = typeMap.get(normalizedType);
|
|
if (!detail) {
|
|
continue;
|
|
}
|
|
results.push({
|
|
pubkey: reporterHex,
|
|
latest: ensureNumber(detail?.created_at),
|
|
});
|
|
continue;
|
|
}
|
|
|
|
let latest = 0;
|
|
for (const entry of typeMap.values()) {
|
|
const candidate = ensureNumber(entry?.created_at);
|
|
if (candidate > latest) {
|
|
latest = candidate;
|
|
}
|
|
}
|
|
results.push({ pubkey: reporterHex, latest });
|
|
}
|
|
|
|
if (!results.length) {
|
|
return [];
|
|
}
|
|
|
|
results.sort((a, b) => ensureNumber(b.latest) - ensureNumber(a.latest));
|
|
return results.map((entry) => ({
|
|
pubkey: entry.pubkey,
|
|
latest: ensureNumber(entry.latest),
|
|
}));
|
|
}
|
|
|
|
trustedReportCount(eventId, type) {
|
|
const normalizedEventId = normalizeEventId(eventId);
|
|
if (!normalizedEventId) {
|
|
return 0;
|
|
}
|
|
const summary = this.reportSummaries.get(normalizedEventId);
|
|
if (!summary) {
|
|
return 0;
|
|
}
|
|
const normalizedType = normalizeReportType(type);
|
|
const entry = normalizedType ? summary.types[normalizedType] : null;
|
|
if (!entry) {
|
|
return 0;
|
|
}
|
|
return Number.isFinite(entry.trusted) ? entry.trusted : 0;
|
|
}
|
|
|
|
/**
|
|
* Publishes a NIP-56 Report (Kind 1984).
|
|
*
|
|
* @param {object} params
|
|
* @param {string} params.eventId - The ID of the content being reported.
|
|
* @param {string} params.type - The category (e.g., "nudity", "spam").
|
|
* @param {string} params.targetPubkey - The pubkey of the reported content's author.
|
|
* @param {string} [params.relayHint] - Optional relay URL hint.
|
|
* @param {string} [params.content] - Optional text description of the report.
|
|
* @returns {Promise<{ok: boolean, event: object, results: object[]}>}
|
|
*/
|
|
async submitReport({
|
|
eventId,
|
|
type,
|
|
targetPubkey = "",
|
|
relayHint = "",
|
|
content = "",
|
|
} = {}) {
|
|
const normalizedEventId = normalizeEventId(eventId);
|
|
if (!normalizedEventId) {
|
|
const error = new Error("invalid-event-id");
|
|
error.code = "invalid-event-id";
|
|
throw error;
|
|
}
|
|
|
|
const normalizedType = normalizeReportType(type);
|
|
if (!normalizedType) {
|
|
const error = new Error("invalid-type");
|
|
error.code = "invalid-type";
|
|
throw error;
|
|
}
|
|
|
|
const reporterPubkey = normalizeHex(
|
|
this.nostrClient?.pubkey || this.nostrClient?.sessionActor?.pubkey,
|
|
);
|
|
|
|
if (!reporterPubkey) {
|
|
const error = new Error("viewer-not-logged-in");
|
|
error.code = "viewer-not-logged-in";
|
|
throw error;
|
|
}
|
|
|
|
const normalizedTarget = normalizeHex(targetPubkey);
|
|
if (!normalizedTarget) {
|
|
const error = new Error("invalid-target-pubkey");
|
|
error.code = "invalid-target-pubkey";
|
|
throw error;
|
|
}
|
|
|
|
const signer = await this.nostrClient.ensureActiveSignerForPubkey(
|
|
reporterPubkey,
|
|
);
|
|
if (!signer || typeof signer.signEvent !== "function") {
|
|
const error = new Error("signer-unavailable");
|
|
error.code = "signer-unavailable";
|
|
throw error;
|
|
}
|
|
|
|
if (
|
|
(signer.type === "extension" || signer.type === "nip07") &&
|
|
typeof this.nostrClient?.ensureExtensionPermissions === "function"
|
|
) {
|
|
const permissionResult = await this.nostrClient.ensureExtensionPermissions([
|
|
"sign_event",
|
|
"get_public_key",
|
|
]);
|
|
if (!permissionResult?.ok) {
|
|
const error = new Error("extension-permission-denied");
|
|
error.code = "extension-permission-denied";
|
|
error.details = permissionResult?.error || null;
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
const sanitizedRelayHint =
|
|
typeof relayHint === "string" ? relayHint.trim() : "";
|
|
|
|
const event = buildReportEvent({
|
|
pubkey: reporterPubkey,
|
|
created_at: Math.floor(Date.now() / 1000),
|
|
eventId: normalizedEventId,
|
|
userId: normalizedTarget,
|
|
reportType: normalizedType,
|
|
relayHint: sanitizedRelayHint,
|
|
content: typeof content === "string" ? content : "",
|
|
});
|
|
|
|
let signedEvent;
|
|
try {
|
|
signedEvent = await signer.signEvent(event);
|
|
} catch (error) {
|
|
const wrapped = new Error("signature-failed");
|
|
wrapped.code = "signature-failed";
|
|
wrapped.details = error;
|
|
throw wrapped;
|
|
}
|
|
|
|
await this.ensurePool();
|
|
const relays = resolveRelayList(this.nostrClient, { write: true });
|
|
if (!relays.length) {
|
|
const error = new Error("no-relays-configured");
|
|
error.code = "no-relays-configured";
|
|
throw error;
|
|
}
|
|
|
|
let results = [];
|
|
try {
|
|
results = await publishEventToRelays(this.nostrClient.pool, relays, signedEvent);
|
|
assertAnyRelayAccepted(results, { context: "report" });
|
|
} catch (error) {
|
|
const wrapped = new Error("report-publish-failed");
|
|
wrapped.code = "report-publish-failed";
|
|
wrapped.details = error;
|
|
throw wrapped;
|
|
}
|
|
|
|
this.ingestReportEvent(signedEvent);
|
|
return { ok: true, event: signedEvent, results };
|
|
}
|
|
|
|
async awaitUserBlockRefresh() {
|
|
if (!this.userBlockRefreshQueue) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
await this.userBlockRefreshQueue;
|
|
} catch {
|
|
/* already reported during queue */
|
|
}
|
|
}
|
|
}
|
|
|
|
const moderationService = new ModerationService({
|
|
nostrClient,
|
|
logger,
|
|
userBlocks,
|
|
accessControl,
|
|
});
|
|
|
|
export default moderationService;
|