124 lines
5.3 KiB
JavaScript
124 lines
5.3 KiB
JavaScript
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || (function () {
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var ownKeys = function(o) {
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ownKeys = Object.getOwnPropertyNames || function (o) {
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var ar = [];
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for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
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return ar;
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};
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return ownKeys(o);
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};
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return function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
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__setModuleDefault(result, mod);
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return result;
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.isDeadTokenError = isDeadTokenError;
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exports.selectDeadTokens = selectDeadTokens;
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exports.pruneDeadTokens = pruneDeadTokens;
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const admin = __importStar(require("firebase-admin"));
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/**
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* FCM error codes that mean a token is *permanently* dead and safe to delete.
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*
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* Deliberately narrow. We only prune on errors that unambiguously blame the TOKEN:
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* - `registration-token-not-registered` — the app was uninstalled / data-cleared / token rotated.
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* - `invalid-registration-token` — the token string itself is malformed.
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* We intentionally do NOT include `messaging/invalid-argument` or any transient/server error
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* (`unavailable`, `internal`, `quota-exceeded`, auth issues): those can be caused by a bad *payload*
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* or a temporary outage, and treating them as dead would let one bug wipe every user's tokens.
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*/
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const DEAD_TOKEN_CODES = new Set([
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'messaging/registration-token-not-registered',
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'messaging/invalid-registration-token',
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]);
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/** Extract the `messaging/*` code from a firebase-admin messaging rejection, wherever it lives. */
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function messagingErrorCode(reason) {
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var _a, _b;
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const r = reason;
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const code = (_b = (_a = r === null || r === void 0 ? void 0 : r.errorInfo) === null || _a === void 0 ? void 0 : _a.code) !== null && _b !== void 0 ? _b : r === null || r === void 0 ? void 0 : r.code;
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return typeof code === 'string' ? code : undefined;
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}
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/** True only when an FCM send rejection means the token is permanently invalid (safe to delete). */
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function isDeadTokenError(reason) {
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const code = messagingErrorCode(reason);
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return code !== undefined && DEAD_TOKEN_CODES.has(code);
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}
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/**
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* Pure: given the same `tokens` array and `Promise.allSettled` results a caller already has, return the
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* distinct token strings that FCM reported as permanently dead. Index `i` in results maps to `tokens[i]`.
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*/
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function selectDeadTokens(tokens, results) {
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const dead = new Set();
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results.forEach((r, i) => {
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const token = tokens[i];
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if (r.status === 'rejected' && token && isDeadTokenError(r.reason))
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dead.add(token);
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});
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return [...dead];
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}
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/**
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* Best-effort removal of tokens FCM reported as permanently dead. Pass the `tokens` array and the
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* `Promise.allSettled` results from the send you just performed; any dead token is deleted from the
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* user's `fcmTokens` subcollection and cleared from the legacy `fcmToken` field if it matches.
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*
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* Never throws — pruning is housekeeping and must never fail the notification path it runs after.
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* Returns the number of token records removed.
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*/
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async function pruneDeadTokens(db, uid, tokens, results) {
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var _a;
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const dead = new Set(selectDeadTokens(tokens, results));
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if (dead.size === 0)
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return 0;
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try {
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const userRef = db.collection('users').doc(uid);
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const [tokenSnap, userDoc] = await Promise.all([
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userRef.collection('fcmTokens').get(),
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userRef.get(),
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]);
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const batch = db.batch();
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let removed = 0;
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tokenSnap.docs.forEach((d) => {
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var _a;
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const t = (_a = d.data()) === null || _a === void 0 ? void 0 : _a.token;
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if (typeof t === 'string' && dead.has(t)) {
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batch.delete(d.ref);
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removed++;
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}
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});
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const legacy = (_a = userDoc.data()) === null || _a === void 0 ? void 0 : _a.fcmToken;
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if (typeof legacy === 'string' && dead.has(legacy)) {
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batch.update(userRef, { fcmToken: admin.firestore.FieldValue.delete() });
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removed++;
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}
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if (removed > 0) {
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await batch.commit();
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console.log(`[pruneDeadTokens] uid=${uid} removed ${removed} dead token(s)`);
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}
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return removed;
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}
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catch (e) {
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console.warn(`[pruneDeadTokens] uid=${uid} prune failed (ignored):`, e);
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return 0;
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}
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}
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//# sourceMappingURL=pruneTokens.js.map
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