Files
bitvid/js/services/moderationService.js
T

2230 lines
59 KiB
JavaScript

import { nostrClient } from "../nostr.js";
import { publishEventToRelays, assertAnyRelayAccepted } from "../nostrPublish.js";
import { accessControl } from "../accessControl.js";
import { userBlocks, USER_BLOCK_EVENTS } from "../userBlocks.js";
import logger from "../utils/logger.js";
const AUTOPLAY_TRUST_THRESHOLD = 1;
const BLUR_TRUST_THRESHOLD = 1;
function normalizeUserLogger(candidate) {
if (
candidate &&
typeof candidate === "object" &&
typeof candidate.info === "function"
) {
return candidate;
}
return logger.user;
}
class SimpleEventEmitter {
constructor(logHandler = null) {
this.listeners = new Map();
this.logHandler = typeof logHandler === "function" ? logHandler : null;
}
on(eventName, handler) {
if (typeof eventName !== "string" || typeof handler !== "function") {
return () => {};
}
if (!this.listeners.has(eventName)) {
this.listeners.set(eventName, new Set());
}
const handlers = this.listeners.get(eventName);
handlers.add(handler);
return () => {
handlers.delete(handler);
if (!handlers.size) {
this.listeners.delete(eventName);
}
};
}
emit(eventName, detail) {
const handlers = this.listeners.get(eventName);
if (!handlers || !handlers.size) {
return;
}
for (const handler of Array.from(handlers)) {
try {
handler(detail);
} catch (error) {
if (this.logHandler) {
try {
this.logHandler(`moderationService listener for "${eventName}" threw`, error);
} catch (logError) {
logger.user.warn("[moderationService] listener logger threw", logError);
}
}
}
}
}
}
function normalizeLogger(candidate) {
if (typeof candidate === "function") {
return candidate;
}
if (candidate && typeof candidate.log === "function") {
return (...args) => candidate.log(...args);
}
if (
candidate &&
typeof candidate.dev === "object" &&
typeof candidate.dev.log === "function"
) {
return (...args) => candidate.dev.log(...args);
}
return () => {};
}
function normalizeHex(value) {
if (typeof value !== "string") {
return "";
}
const trimmed = value.trim().toLowerCase();
return trimmed && /^[0-9a-f]{40,64}$/i.test(trimmed) ? trimmed : "";
}
function normalizeEventId(value) {
if (typeof value !== "string") {
return "";
}
const trimmed = value.trim().toLowerCase();
return trimmed && /^[0-9a-f]{64}$/i.test(trimmed) ? trimmed : "";
}
function normalizeReportType(value) {
if (typeof value !== "string") {
return "";
}
const trimmed = value.trim().toLowerCase();
return trimmed ? trimmed : "";
}
function cloneSummary(summary) {
if (!summary || typeof summary !== "object") {
return { eventId: "", totalTrusted: 0, types: {}, updatedAt: 0 };
}
const types = summary.types && typeof summary.types === "object" ? summary.types : {};
const clonedTypes = {};
for (const [key, value] of Object.entries(types)) {
if (!value || typeof value !== "object") {
continue;
}
clonedTypes[key] = {
trusted: Number.isFinite(value.trusted) ? value.trusted : 0,
total: Number.isFinite(value.total) ? value.total : 0,
latest: Number.isFinite(value.latest) ? value.latest : 0,
};
}
return {
eventId: typeof summary.eventId === "string" ? summary.eventId : "",
totalTrusted: Number.isFinite(summary.totalTrusted) ? summary.totalTrusted : 0,
types: clonedTypes,
updatedAt: Number.isFinite(summary.updatedAt) ? summary.updatedAt : 0,
};
}
function getNostrTools() {
if (typeof window !== "undefined" && window?.NostrTools) {
return window.NostrTools;
}
if (typeof globalThis !== "undefined" && globalThis?.NostrTools) {
return globalThis.NostrTools;
}
return null;
}
function bytesToHex(bytes) {
if (!bytes || typeof bytes.length !== "number") {
return "";
}
let hex = "";
for (let index = 0; index < bytes.length; index += 1) {
const value = bytes[index];
if (typeof value !== "number") {
return "";
}
const normalized = value & 0xff;
hex += normalized.toString(16).padStart(2, "0");
}
return hex;
}
const BECH32_CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l";
const BECH32_CHARSET_MAP = (() => {
const map = new Map();
for (let index = 0; index < BECH32_CHARSET.length; index += 1) {
map.set(BECH32_CHARSET[index], index);
}
return map;
})();
function bech32Polymod(values) {
let chk = 1;
const generators = [0x3b6a57b2, 0x26508e6d, 0x1ea119fa, 0x3d4233dd, 0x2a1462b3];
for (const value of values) {
const top = chk >>> 25;
chk = ((chk & 0x1ffffff) << 5) ^ value;
for (let bit = 0; bit < generators.length; bit += 1) {
if ((top >>> bit) & 1) {
chk ^= generators[bit];
}
}
}
return chk;
}
function bech32HrpExpand(hrp) {
const expanded = [];
for (let index = 0; index < hrp.length; index += 1) {
const code = hrp.charCodeAt(index);
expanded.push(code >>> 5);
}
expanded.push(0);
for (let index = 0; index < hrp.length; index += 1) {
const code = hrp.charCodeAt(index);
expanded.push(code & 31);
}
return expanded;
}
function bech32VerifyChecksum(hrp, data) {
return bech32Polymod(bech32HrpExpand(hrp).concat(data)) === 1;
}
function bech32Decode(value) {
if (typeof value !== "string") {
return null;
}
const trimmed = value.trim();
if (!trimmed) {
return null;
}
const lower = trimmed.toLowerCase();
const upper = trimmed.toUpperCase();
if (trimmed !== lower && trimmed !== upper) {
return null;
}
const normalized = lower;
const separatorIndex = normalized.lastIndexOf("1");
if (separatorIndex < 1 || separatorIndex + 7 > normalized.length) {
return null;
}
const hrp = normalized.slice(0, separatorIndex);
const data = [];
for (let index = separatorIndex + 1; index < normalized.length; index += 1) {
const char = normalized[index];
if (!BECH32_CHARSET_MAP.has(char)) {
return null;
}
data.push(BECH32_CHARSET_MAP.get(char));
}
if (!bech32VerifyChecksum(hrp, data)) {
return null;
}
return { hrp, words: data.slice(0, -6) };
}
function convertBits(data, fromBits, toBits, pad = true) {
const result = [];
let acc = 0;
let bits = 0;
const maxv = (1 << toBits) - 1;
const maxAcc = (1 << (fromBits + toBits - 1)) - 1;
for (const value of data) {
if (value < 0 || value >> fromBits) {
return null;
}
acc = ((acc << fromBits) | value) & maxAcc;
bits += fromBits;
while (bits >= toBits) {
bits -= toBits;
result.push((acc >>> bits) & maxv);
}
}
if (pad) {
if (bits) {
result.push((acc << (toBits - bits)) & maxv);
}
} else if (bits >= fromBits || ((acc << (toBits - bits)) & maxv)) {
return null;
}
return result;
}
function fallbackDecodeNpubToHex(value) {
const decoded = bech32Decode(value);
if (!decoded || decoded.hrp !== "npub") {
return "";
}
const bytes = convertBits(decoded.words, 5, 8, false);
if (!bytes || !bytes.length) {
return "";
}
return bytes.map((byte) => byte.toString(16).padStart(2, "0")).join("");
}
function decodeToHex(candidate) {
if (typeof candidate !== "string") {
return "";
}
const trimmed = candidate.trim();
if (!trimmed) {
return "";
}
try {
const tools = getNostrTools();
const decoder = tools?.nip19?.decode;
if (typeof decoder === "function") {
const decoded = decoder(trimmed);
if (!decoded || decoded.type !== "npub") {
return fallbackDecodeNpubToHex(trimmed);
}
const data = decoded.data;
if (typeof data === "string") {
const normalized = normalizeHex(data);
return normalized || fallbackDecodeNpubToHex(trimmed);
}
return bytesToHex(data);
}
return fallbackDecodeNpubToHex(trimmed);
} catch (error) {
return fallbackDecodeNpubToHex(trimmed);
}
}
function encodeToNpub(hex) {
const normalized = normalizeHex(hex);
if (!normalized) {
return "";
}
try {
const tools = getNostrTools();
const encoder = tools?.nip19?.npubEncode;
if (typeof encoder !== "function") {
return "";
}
return encoder(normalized) || "";
} catch (error) {
return "";
}
}
function normalizeToHex(candidate) {
const direct = normalizeHex(candidate);
if (direct) {
return direct;
}
return decodeToHex(candidate);
}
function createEmptyAdminSnapshot() {
return {
whitelist: new Set(),
whitelistHex: new Set(),
blacklist: new Set(),
blacklistHex: new Set(),
};
}
function resolveRelayList(client, { write = false } = {}) {
if (!client) {
return [];
}
const source = write ? client.writeRelays : client.relays;
const fallback = client.relays;
const raw = Array.isArray(source) && source.length ? source : fallback;
if (!Array.isArray(raw)) {
return [];
}
const urls = [];
const seen = new Set();
for (const entry of raw) {
if (typeof entry !== "string") {
continue;
}
const trimmed = entry.trim();
if (!trimmed || seen.has(trimmed)) {
continue;
}
seen.add(trimmed);
urls.push(trimmed);
}
return urls;
}
function findReportedEventId(event) {
if (!event || !Array.isArray(event.tags)) {
return "";
}
for (const tag of event.tags) {
if (!Array.isArray(tag) || tag.length < 2) {
continue;
}
if (tag[0] !== "e") {
continue;
}
const candidate = normalizeEventId(tag[1]);
if (candidate) {
return candidate;
}
}
return "";
}
function extractReportType(event, targetEventId = "") {
if (!event || !Array.isArray(event.tags)) {
return "";
}
for (const tag of event.tags) {
if (!Array.isArray(tag) || tag.length < 2) {
continue;
}
const [marker, value] = tag;
if (marker === "report" || marker === "type") {
const normalized = normalizeReportType(value);
if (normalized) {
return normalized;
}
}
}
if (targetEventId) {
for (const tag of event.tags) {
if (!Array.isArray(tag) || tag[0] !== "e") {
continue;
}
if (normalizeEventId(tag[1]) !== targetEventId) {
continue;
}
const typeCandidate = normalizeReportType(tag[2] || "");
if (typeCandidate) {
return typeCandidate;
}
}
}
for (const tag of event.tags) {
if (!Array.isArray(tag) || tag[0] !== "t") {
continue;
}
const normalized = normalizeReportType(tag[1] || "");
if (normalized) {
return normalized;
}
}
return "";
}
function ensureNumber(value) {
const parsed = Number(value);
return Number.isFinite(parsed) ? parsed : 0;
}
export class ModerationService {
constructor({
nostrClient: client = null,
logger: log = null,
userBlocks: userBlockManager = null,
accessControl: accessControlService = null,
userLogger: userChannel = null,
} = {}) {
this.nostrClient = client;
this.log = normalizeLogger(log);
this.userLogger = normalizeUserLogger(userChannel);
this.viewerPubkey = "";
this.trustedContacts = new Set();
this.trustedSeedContacts = new Set();
this.viewerContacts = new Set();
this.userBlocks = null;
this.accessControl = accessControlService;
this.viewerMuteList = new Set();
this.viewerMuteEventId = "";
this.viewerMuteUpdatedAt = 0;
this.viewerMutePromise = null;
this.contactSubscription = null;
this.contactListPromise = null;
this.reportEvents = new Map();
this.reportSummaries = new Map();
this.activeSubscriptions = new Map();
this.activeEventIds = new Set();
this.trustedMuteLists = new Map();
this.trustedMutedAuthors = new Map();
this.trustedMuteSubscriptions = new Map();
this.emitter = new SimpleEventEmitter((message, error) => {
try {
this.log(message, error);
} catch (logError) {
logger.user.warn("[moderationService] logger threw", logError);
}
});
this.userBlockUnsubscribe = null;
this.userBlockRefreshQueue = Promise.resolve();
this.setUserBlocks(userBlockManager);
}
setUserLogger(channel) {
this.userLogger = normalizeUserLogger(channel);
}
mergeSeedsIntoSet(base = null) {
const merged = new Set();
if (base instanceof Set || Array.isArray(base)) {
for (const value of base) {
const normalized = normalizeHex(value);
if (normalized) {
merged.add(normalized);
}
}
} else if (base && typeof base[Symbol.iterator] === "function") {
for (const value of base) {
const normalized = normalizeHex(value);
if (normalized) {
merged.add(normalized);
}
}
}
if (this.trustedSeedContacts instanceof Set) {
for (const seed of this.trustedSeedContacts) {
const normalized = normalizeHex(seed);
if (normalized) {
merged.add(normalized);
}
}
}
return merged;
}
rebuildTrustedContacts(nextContacts = new Set(), { previous = null } = {}) {
const sanitized = new Set();
if (nextContacts instanceof Set || Array.isArray(nextContacts)) {
for (const value of nextContacts) {
const normalized = normalizeHex(value);
if (normalized) {
sanitized.add(normalized);
}
}
} else if (nextContacts && typeof nextContacts[Symbol.iterator] === "function") {
for (const value of nextContacts) {
const normalized = normalizeHex(value);
if (normalized) {
sanitized.add(normalized);
}
}
}
this.viewerContacts = sanitized;
const previousContacts =
previous instanceof Set
? new Set(previous)
: this.trustedContacts instanceof Set
? new Set(this.trustedContacts)
: new Set();
const seededNext = this.mergeSeedsIntoSet(sanitized);
this.trustedContacts = seededNext;
this.emit("contacts", { size: seededNext.size });
this.recomputeAllSummaries();
this.reconcileTrustedMuteSubscriptions(previousContacts, seededNext);
}
getViewerContactsSnapshot({ includeViewer = false } = {}) {
const contacts =
this.viewerContacts instanceof Set ? this.viewerContacts : new Set();
const viewer = normalizeHex(this.viewerPubkey);
const list = [];
for (const value of contacts) {
const normalized = normalizeHex(value);
if (!normalized) {
continue;
}
if (!includeViewer && viewer && normalized === viewer) {
continue;
}
list.push({
pubkey: normalized,
npub: encodeToNpub(normalized) || "",
});
}
return list;
}
async ensureViewerContactsLoaded(pubkey = null) {
const target = normalizeHex(pubkey);
const viewer = normalizeHex(this.viewerPubkey);
if (target && target !== viewer) {
try {
await this.setViewerPubkey(target);
} catch (error) {
this.log(
"[moderationService] failed to set viewer pubkey while ensuring contacts",
error,
);
}
return this.getViewerContactsSnapshot();
}
if (this.contactListPromise) {
try {
await this.contactListPromise;
} catch (error) {
this.log(
"[moderationService] contact hydration failed while ensuring contacts",
error,
);
}
} else if (viewer) {
const hasContacts =
this.viewerContacts instanceof Set && this.viewerContacts.size > 0;
if (!hasContacts) {
try {
await this.fetchTrustedContacts(viewer);
} catch (error) {
this.log(
"[moderationService] failed to fetch viewer contacts while ensuring contacts",
error,
);
}
}
}
return this.getViewerContactsSnapshot();
}
setTrustedSeeds(seeds = []) {
const sanitizedSeeds = new Set();
if (seeds instanceof Set || Array.isArray(seeds)) {
for (const candidate of seeds) {
const normalized = normalizeToHex(candidate);
if (normalized) {
sanitizedSeeds.add(normalized);
}
}
} else if (seeds && typeof seeds[Symbol.iterator] === "function") {
for (const candidate of seeds) {
const normalized = normalizeToHex(candidate);
if (normalized) {
sanitizedSeeds.add(normalized);
}
}
}
const previousContacts =
this.trustedContacts instanceof Set ? new Set(this.trustedContacts) : new Set();
this.trustedSeedContacts = sanitizedSeeds;
this.rebuildTrustedContacts(this.viewerContacts, { previous: previousContacts });
}
logThresholdTransitions({
eventId = "",
reportType = "",
previousTrusted = 0,
nextTrusted = 0,
} = {}) {
const normalizedEventId = normalizeEventId(eventId);
const normalizedType = normalizeReportType(reportType);
if (!normalizedEventId || !normalizedType) {
return;
}
const previous = Number.isFinite(previousTrusted) ? previousTrusted : 0;
const next = Number.isFinite(nextTrusted) ? nextTrusted : 0;
const transitions = [];
if (AUTOPLAY_TRUST_THRESHOLD > 0) {
const previousMet = previous >= AUTOPLAY_TRUST_THRESHOLD;
const nextMet = next >= AUTOPLAY_TRUST_THRESHOLD;
if (previousMet !== nextMet) {
transitions.push({
action: nextMet ? "autoplay-block-enabled" : "autoplay-block-cleared",
});
}
}
if (BLUR_TRUST_THRESHOLD > 0) {
const previousMet = previous >= BLUR_TRUST_THRESHOLD;
const nextMet = next >= BLUR_TRUST_THRESHOLD;
if (previousMet !== nextMet) {
transitions.push({
action: nextMet ? "blur-enabled" : "blur-cleared",
});
}
}
if (!transitions.length) {
return;
}
const channel = this.userLogger || logger.user;
for (const entry of transitions) {
try {
channel.info("[moderationService] moderation threshold crossed", {
eventId: normalizedEventId,
reportType: normalizedType,
trustedCount: next,
action: entry.action,
});
} catch (error) {
logger.user.warn("[moderationService] failed to log threshold transition", error);
}
}
}
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 } = {}) {
const previous =
previousContacts instanceof Set
? new Set(previousContacts)
: this.trustedContacts instanceof Set
? new Set(this.trustedContacts)
: new Set();
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();
for (const [author, aggregate] of this.trustedMutedAuthors.entries()) {
if (aggregate && aggregate.muters instanceof Set) {
aggregate.muters.clear();
}
}
this.trustedMuteLists.clear();
this.trustedMutedAuthors.clear();
this.viewerMuteList.clear();
this.viewerMuteEventId = "";
this.viewerMuteUpdatedAt = 0;
this.emit("trusted-mutes", { total: 0 });
this.rebuildTrustedContacts(new Set(), { previous });
}
isTrustedMuteOwner(pubkey) {
const normalized = normalizeHex(pubkey);
if (!normalized) {
return false;
}
if (normalized === this.viewerPubkey) {
return true;
}
return this.trustedContacts.has(normalized);
}
reconcileTrustedMuteSubscriptions(previousSet, nextSet) {
const previous = previousSet instanceof Set ? new Set(previousSet) : new Set();
const next = nextSet instanceof Set ? new Set(nextSet) : new Set();
if (this.viewerPubkey) {
if (this.trustedMuteSubscriptions.has(this.viewerPubkey)) {
previous.add(this.viewerPubkey);
}
next.add(this.viewerPubkey);
}
for (const value of previous) {
if (!next.has(value)) {
this.teardownTrustedMuteSubscription(value);
}
}
for (const value of next) {
if (!previous.has(value)) {
this.subscribeToTrustedMuteList(value).catch((error) => {
this.log(
`(moderationService) failed to subscribe to trusted mute list for ${value}`,
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) {
const normalized = normalizeHex(pubkey);
if (!normalized || !this.isTrustedMuteOwner(normalized)) {
return;
}
let record = this.trustedMuteSubscriptions.get(normalized);
if (!record) {
record = { unsub: null, promise: null };
this.trustedMuteSubscriptions.set(normalized, record);
} else if (record.promise) {
try {
await record.promise;
} catch {
/* noop */
}
return;
} else if (typeof record.unsub === "function") {
return;
}
record.promise = (async () => {
try {
await this.ensurePool();
} catch (error) {
this.log(
`(moderationService) ensurePool failed while subscribing to trusted mute list for ${normalized}`,
error,
);
return;
}
if (!this.isTrustedMuteOwner(normalized)) {
return;
}
const relays = resolveRelayList(this.nostrClient);
if (!relays.length) {
return;
}
const filter = { kinds: [10000], authors: [normalized], limit: 1 };
let events = [];
try {
events = await this.nostrClient.pool.list(relays, [filter]);
} catch (error) {
this.log(
`(moderationService) failed to backfill trusted mute list for ${normalized}`,
error,
);
events = [];
}
if (Array.isArray(events) && events.length) {
let latest = null;
for (const event of events) {
if (!event || ensureNumber(event.created_at) <= 0) {
continue;
}
if (!latest || ensureNumber(event.created_at) > ensureNumber(latest.created_at)) {
latest = event;
}
}
if (latest) {
this.ingestTrustedMuteEvent(latest);
}
} else {
this.replaceTrustedMuteList(normalized, new Set(), { createdAt: 0, eventId: "" });
}
if (!this.isTrustedMuteOwner(normalized)) {
return;
}
try {
const sub = this.nostrClient.pool.sub(relays, [filter]);
sub.on("event", (event) => {
this.ingestTrustedMuteEvent(event);
});
sub.on("eose", () => {});
record.unsub = typeof sub.unsub === "function" ? () => sub.unsub() : null;
} catch (error) {
this.log(
`(moderationService) failed to subscribe to trusted mute list for ${normalized}`,
error,
);
}
})();
try {
await record.promise;
} catch (error) {
this.log("[moderationService] trusted mute subscription promise rejected", error);
} finally {
record.promise = null;
}
}
teardownTrustedMuteSubscription(pubkey) {
const normalized = normalizeHex(pubkey);
if (!normalized) {
return;
}
const record = this.trustedMuteSubscriptions.get(normalized);
if (record && typeof record.unsub === "function") {
try {
record.unsub();
} catch (error) {
this.log("[moderationService] failed to teardown trusted mute subscription", error);
}
}
this.trustedMuteSubscriptions.delete(normalized);
this.replaceTrustedMuteList(normalized, new Set(), { createdAt: 0, eventId: "" });
}
replaceTrustedMuteList(ownerPubkey, mutedAuthors, { createdAt = 0, eventId = "" } = {}) {
const owner = normalizeHex(ownerPubkey);
if (!owner) {
return;
}
const sanitizedAuthors = new Set();
if (mutedAuthors instanceof Set || Array.isArray(mutedAuthors)) {
for (const candidate of mutedAuthors) {
const normalized = normalizeToHex(candidate);
if (!normalized) {
continue;
}
sanitizedAuthors.add(normalized);
}
} else if (mutedAuthors && typeof mutedAuthors[Symbol.iterator] === "function") {
for (const candidate of mutedAuthors) {
const normalized = normalizeToHex(candidate);
if (!normalized) {
continue;
}
sanitizedAuthors.add(normalized);
}
}
const previous = this.trustedMuteLists.get(owner);
if (previous && previous.authors instanceof Set) {
for (const author of previous.authors) {
const aggregate = this.trustedMutedAuthors.get(author);
if (!aggregate || !(aggregate.muters instanceof Set)) {
continue;
}
aggregate.muters.delete(owner);
if (!aggregate.muters.size) {
this.trustedMutedAuthors.delete(author);
} else {
aggregate.count = aggregate.muters.size;
}
}
}
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 of sanitizedAuthors) {
let aggregate = this.trustedMutedAuthors.get(author);
if (!aggregate) {
aggregate = { muters: new Set(), count: 0 };
this.trustedMutedAuthors.set(author, aggregate);
}
aggregate.muters.add(owner);
aggregate.count = aggregate.muters.size;
}
}
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 !== 10000) {
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 Set();
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) {
mutedAuthors.add(normalized);
}
}
}
this.replaceTrustedMuteList(owner, mutedAuthors, { createdAt, eventId });
}
ingestTrustedMuteEvent(event) {
if (!event || event.kind !== 10000) {
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);
}
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.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({ owner, muted }) {
const viewer = normalizeHex(owner || this.viewerPubkey);
if (!viewer) {
const error = new Error("viewer-not-logged-in");
error.code = "viewer-not-logged-in";
throw error;
}
await this.ensurePool();
const extension = typeof window !== "undefined" ? window.nostr : null;
if (!extension || typeof extension.signEvent !== "function") {
const error = new Error("nostr-extension-missing");
error.code = "nostr-extension-missing";
throw error;
}
if (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 tags = [];
if (muted instanceof Set || Array.isArray(muted)) {
for (const value of muted) {
const normalized = normalizeHex(value);
if (!normalized || normalized === viewer) {
continue;
}
tags.push(["p", normalized]);
}
}
const event = {
kind: 10000,
created_at: Math.floor(Date.now() / 1000),
tags,
content: "",
pubkey: viewer,
};
let signedEvent;
try {
signedEvent = await extension.signEvent(event);
} catch (error) {
const wrapped = new Error("signature-failed");
wrapped.code = "signature-failed";
wrapped.details = error;
throw wrapped;
}
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: "mute list" });
} catch (error) {
const wrapped = new Error("mute-list-publish-failed");
wrapped.code = "mute-list-publish-failed";
wrapped.details = error;
throw wrapped;
}
this.applyTrustedMuteEvent(viewer, signedEvent);
return { ok: true, event: signedEvent, results };
}
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;
}
const target = normalizeHex(pubkey);
if (!target) {
const error = new Error("invalid-target");
error.code = "invalid-target";
throw error;
}
if (target === viewer) {
const error = new Error("self");
error.code = "self";
throw error;
}
await this.ensureViewerMuteListLoaded(viewer);
if (this.viewerMuteList.has(target)) {
return { ok: true, already: true };
}
const next = new Set(this.viewerMuteList);
next.add(target);
return this.publishViewerMuteList({ owner: viewer, muted: next });
}
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;
}
const target = normalizeHex(pubkey);
if (!target) {
return { ok: true, already: true };
}
await this.ensureViewerMuteListLoaded(viewer);
if (!this.viewerMuteList.has(target)) {
return { ok: true, already: true };
}
const next = new Set(this.viewerMuteList);
next.delete(target);
return this.publishViewerMuteList({ owner: viewer, muted: next });
}
isAuthorMutedByTrusted(pubkey) {
const normalized = normalizeHex(pubkey);
if (!normalized) {
return false;
}
const entry = this.trustedMutedAuthors.get(normalized);
return Boolean(entry && entry.muters instanceof Set && entry.muters.size > 0);
}
getTrustedMutersForAuthor(pubkey) {
const normalized = normalizeHex(pubkey);
if (!normalized) {
return [];
}
const entry = this.trustedMutedAuthors.get(normalized);
if (!entry || !(entry.muters instanceof Set)) {
return [];
}
return Array.from(entry.muters);
}
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();
}
async refreshViewerFromClient() {
const clientPubkey = normalizeHex(this.nostrClient?.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);
}
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;
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;
}
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);
}
}
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);
}
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;
}
}
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);
}
}
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) });
}
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;
}
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);
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 extension = typeof window !== "undefined" ? window.nostr : null;
if (!extension) {
const error = new Error("nostr-extension-missing");
error.code = "nostr-extension-missing";
throw error;
}
if (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 eventTag = ["e", normalizedEventId];
if (sanitizedRelayHint) {
eventTag.push(sanitizedRelayHint);
}
eventTag.push(normalizedType);
const tags = [
eventTag,
["p", normalizedTarget, normalizedType],
["t", normalizedType],
];
const event = {
kind: 1984,
created_at: Math.floor(Date.now() / 1000),
tags,
content: typeof content === "string" ? content : "",
pubkey: reporterPubkey,
};
let signedEvent;
try {
signedEvent = await extension.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;