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AP Lock (#5410)
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MeiMei
syuilo
parent
9b91b92bca
commit
827c378ac1
@ -199,6 +199,7 @@
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"recaptcha-promise": "0.1.3",
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"reconnecting-websocket": "4.2.0",
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"redis": "2.8.0",
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"redis-lock": "0.1.4",
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"reflect-metadata": "0.1.13",
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"rename": "1.0.4",
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"request": "2.88.0",
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22
src/misc/app-lock.ts
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22
src/misc/app-lock.ts
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@ -0,0 +1,22 @@
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import redis from '../db/redis';
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import { promisify } from 'util';
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/**
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* Retry delay (ms) for lock acquisition
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*/
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const retryDelay = 100;
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const lock: (key: string, timeout?: number) => Promise<() => void>
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= redis
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? promisify(require('redis-lock')(redis, retryDelay))
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: async () => () => { };
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/**
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* Get AP Object lock
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* @param uri AP object ID
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* @param timeout Lock timeout (ms), The timeout releases previous lock.
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* @returns Unlock function
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*/
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export function getApLock(uri: string, timeout = 30 * 1000) {
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return lock(`ap-object:${uri}`, timeout);
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}
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@ -7,6 +7,7 @@ import { resolvePerson } from '../../models/person';
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import { apLogger } from '../../logger';
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import { extractDbHost } from '../../../../misc/convert-host';
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import { fetchMeta } from '../../../../misc/fetch-meta';
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import { getApLock } from '../../../../misc/app-lock';
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const logger = apLogger;
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@ -25,47 +26,53 @@ export default async function(resolver: Resolver, actor: IRemoteUser, activity:
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const meta = await fetchMeta();
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if (meta.blockedHosts.includes(extractDbHost(uri))) return;
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// 既に同じURIを持つものが登録されていないかチェック
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const exist = await fetchNote(uri);
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if (exist) {
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return;
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}
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const unlock = await getApLock(uri);
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// Announce対象をresolve
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let renote;
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try {
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renote = await resolveNote(note);
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} catch (e) {
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// 対象が4xxならスキップ
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if (e.statusCode >= 400 && e.statusCode < 500) {
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logger.warn(`Ignored announce target ${note.inReplyTo} - ${e.statusCode}`);
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// 既に同じURIを持つものが登録されていないかチェック
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const exist = await fetchNote(uri);
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if (exist) {
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return;
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}
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logger.warn(`Error in announce target ${note.inReplyTo} - ${e.statusCode || e}`);
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throw e;
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// Announce対象をresolve
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let renote;
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try {
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renote = await resolveNote(note);
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} catch (e) {
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// 対象が4xxならスキップ
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if (e.statusCode >= 400 && e.statusCode < 500) {
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logger.warn(`Ignored announce target ${note.inReplyTo} - ${e.statusCode}`);
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return;
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}
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logger.warn(`Error in announce target ${note.inReplyTo} - ${e.statusCode || e}`);
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throw e;
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}
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logger.info(`Creating the (Re)Note: ${uri}`);
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//#region Visibility
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const to = getApIds(activity.to);
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const cc = getApIds(activity.cc);
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const visibility = getVisibility(to, cc, actor);
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let visibleUsers: User[] = [];
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if (visibility == 'specified') {
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visibleUsers = await Promise.all(to.map(uri => resolvePerson(uri)));
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}
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//#endergion
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await post(actor, {
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createdAt: activity.published ? new Date(activity.published) : null,
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renote,
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visibility,
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visibleUsers,
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uri
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});
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} finally {
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unlock();
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}
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logger.info(`Creating the (Re)Note: ${uri}`);
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//#region Visibility
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const to = getApIds(activity.to);
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const cc = getApIds(activity.cc);
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const visibility = getVisibility(to, cc, actor);
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let visibleUsers: User[] = [];
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if (visibility == 'specified') {
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visibleUsers = await Promise.all(to.map(uri => resolvePerson(uri)));
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}
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//#endergion
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await post(actor, {
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createdAt: activity.published ? new Date(activity.published) : null,
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renote,
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visibility,
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visibleUsers,
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uri
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});
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}
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type visibility = 'public' | 'home' | 'followers' | 'specified';
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@ -1,13 +1,23 @@
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import Resolver from '../../resolver';
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import { IRemoteUser } from '../../../../models/entities/user';
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import { createNote, fetchNote } from '../../models/note';
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import { getApId } from '../../type';
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import { getApLock } from '../../../../misc/app-lock';
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/**
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* 投稿作成アクティビティを捌きます
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*/
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export default async function(resolver: Resolver, actor: IRemoteUser, note: any, silent = false): Promise<void> {
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const exist = await fetchNote(note);
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if (exist == null) {
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await createNote(note);
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const uri = getApId(note);
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const unlock = await getApLock(uri);
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try {
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const exist = await fetchNote(note);
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if (exist == null) {
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await createNote(note);
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}
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} finally {
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unlock();
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}
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}
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@ -22,6 +22,7 @@ import { Emoji } from '../../../models/entities/emoji';
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import { genId } from '../../../misc/gen-id';
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import { fetchMeta } from '../../../misc/fetch-meta';
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import { ensure } from '../../../prelude/ensure';
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import { getApLock } from '../../../misc/app-lock';
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const logger = apLogger;
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@ -257,30 +258,24 @@ export async function resolveNote(value: string | IObject, resolver?: Resolver):
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const meta = await fetchMeta();
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if (meta.blockedHosts.includes(extractDbHost(uri))) throw { statusCode: 451 };
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//#region このサーバーに既に登録されていたらそれを返す
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const exist = await fetchNote(uri);
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const unlock = await getApLock(uri);
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if (exist) {
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return exist;
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}
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//#endregion
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try {
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//#region このサーバーに既に登録されていたらそれを返す
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const exist = await fetchNote(uri);
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// リモートサーバーからフェッチしてきて登録
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// ここでuriの代わりに添付されてきたNote Objectが指定されていると、サーバーフェッチを経ずにノートが生成されるが
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// 添付されてきたNote Objectは偽装されている可能性があるため、常にuriを指定してサーバーフェッチを行う。
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return await createNote(uri, resolver, true).catch(e => {
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if (e.name === 'duplicated') {
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return fetchNote(uri).then(note => {
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if (note == null) {
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throw new Error('something happened');
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} else {
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return note;
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}
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});
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} else {
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throw e;
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if (exist) {
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return exist;
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}
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});
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//#endregion
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// リモートサーバーからフェッチしてきて登録
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// ここでuriの代わりに添付されてきたNote Objectが指定されていると、サーバーフェッチを経ずにノートが生成されるが
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// 添付されてきたNote Objectは偽装されている可能性があるため、常にuriを指定してサーバーフェッチを行う。
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return await createNote(uri, resolver, true);
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} finally {
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unlock();
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}
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}
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export async function extractEmojis(tags: ITag[], host: string): Promise<Emoji[]> {
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@ -9561,6 +9561,11 @@ redis-errors@^1.0.0, redis-errors@^1.2.0:
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resolved "https://registry.yarnpkg.com/redis-errors/-/redis-errors-1.2.0.tgz#eb62d2adb15e4eaf4610c04afe1529384250abad"
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integrity sha1-62LSrbFeTq9GEMBK/hUpOEJQq60=
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redis-lock@0.1.4:
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version "0.1.4"
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resolved "https://registry.yarnpkg.com/redis-lock/-/redis-lock-0.1.4.tgz#e83590bee22b5f01cdb65bfbd88d988045356272"
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integrity sha512-7/+zu86XVQfJVx1nHTzux5reglDiyUCDwmW7TSlvVezfhH2YLc/Rc8NE0ejQG+8/0lwKzm29/u/4+ogKeLosiA==
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redis-parser@^2.6.0:
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version "2.6.0"
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resolved "https://registry.yarnpkg.com/redis-parser/-/redis-parser-2.6.0.tgz#52ed09dacac108f1a631c07e9b69941e7a19504b"
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