Timo/auth-server-helper
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Timo Hocker 2022-08-10 16:18:05 +02:00
parent b43190d048
commit 43cf782511
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GPG Key ID: 3B86485AC71C835C
1 changed files with 44 additions and 43 deletions
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87
lib/Redis.ts
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@ -6,82 +6,83 @@
*/ */
import IORedis from 'ioredis'; import IORedis from 'ioredis';
import {debug} from './debug'; import { debug } from './debug';
import {LabelledKey} from './Key'; import { LabelledKey } from './Key';
const logger = debug('redis'); const logger = debug ('redis');
export class Redis { export class Redis {
private _redis: IORedis | null = null; private _redis: IORedis | null = null;
public connect(url: string): void { public connect (url: string): void {
const log = logger.extend('connect'); const log = logger.extend ('connect');
log('connecting to redis instance %s', url); log ('connecting to redis instance %s', url);
if (this._redis !== null) { if (this._redis !== null) {
log('disconnecting existing redis client'); log ('disconnecting existing redis client');
this.disconnect(); this.disconnect ();
} }
this._redis = new IORedis(url); this._redis = new IORedis (url);
this._redis.on('connect', () => { this._redis.on ('connect', () => {
log('connected'); log ('connected');
}); });
this._redis.on('ready', () => { this._redis.on ('ready', () => {
log('ready'); log ('ready');
}); });
this._redis.on('error', (err) => { this._redis.on ('error', (err) => {
log('error %o', err); log ('error %o', err);
}); });
this._redis.on('reconnecting', () => { this._redis.on ('reconnecting', () => {
log('reconnecting'); log ('reconnecting');
}); });
this._redis.on('end', () => { this._redis.on ('end', () => {
log('connection ended'); log ('connection ended');
}); });
} }
public disconnect(): void { public disconnect (): void {
const log = logger.extend('disconnect'); const log = logger.extend ('disconnect');
log('disconnecting redis client'); log ('disconnecting redis client');
if (this._redis === null) { if (this._redis === null) {
log('redis is inactive, skipping'); log ('redis is inactive, skipping');
return; return;
} }
this._redis.quit(); this._redis.quit ();
this._redis = null; this._redis = null;
log('done'); log ('done');
} }
public async set_key(key: LabelledKey): Promise<void> { public async set_key (key: LabelledKey): Promise<void> {
const log = logger.extend('set_key'); const log = logger.extend ('set_key');
log('trying to set key %s to redis', key.index); log ('trying to set key %s to redis', key.index);
if (this._redis === null) { if (this._redis === null) {
log('redis is inactive, skipping'); log ('redis is inactive, skipping');
return; return;
} }
const valid_for = Math.floor( const valid_for = Math.floor (
(key.valid_until - new Date().getTime()) / 1000 (key.valid_until - (new Date)
.getTime ()) / 1000
); );
log('key is valid for %d seconds', valid_for); log ('key is valid for %d seconds', valid_for);
await this._redis.setex(key.index, valid_for, JSON.stringify(key)); await this._redis.setex (key.index, valid_for, JSON.stringify (key));
log('saved key'); log ('saved key');
} }
public async get_key(index: string): Promise<LabelledKey | null> { public async get_key (index: string): Promise<LabelledKey | null> {
const log = logger.extend('get_key'); const log = logger.extend ('get_key');
log('trying to get key %s from redis', index); log ('trying to get key %s from redis', index);
if (this._redis === null) { if (this._redis === null) {
log('redis is inactive, skipping'); log ('redis is inactive, skipping');
return null; return null;
} }
const res = await this._redis.get(index); const res = await this._redis.get (index);
if (res === null) { if (res === null) {
log('key not found in redis'); log ('key not found in redis');
return null; return null;
} }
log('key found'); log ('key found');
return JSON.parse(res); return JSON.parse (res);
} }
} }
export const redis = new Redis(); export const redis = (new Redis);