Adding auth to the redis store.

[phillro]

Hi. I added auth to the redis store.

thx.

[3rd-Eden]

Few comments on this, you really shouldn't throw an error when it fails, but just emit an error event for the store.
Also, can you stick to our code style? See https://github.com/LearnBoost/socket.io/wiki/Contributing (style guide section) on a small overview of it.

[dshaw]

-1

There are 2-3 important configuration parameters for running Redis in production. When I rewrote this, I chose this minimal configuration internally, which is already pretty noisy and repetitive, and set it up you coud easily pass in a fully configured RedisClient. Furthermore, the API for auth has changed quite a few times in node_redis and I'd rather not track this internally. The baseline parameters that we support internally have been stable for at least over a year, if not for the life of the project.

These essential items are:

1. and on error listener - or your entire process will exit if there's an issue with redis.
2. auth
3. optionally, db selection

new RedisStore({ pub: ..., sub: ..., cmd: ... })

[dshaw]

Oops, I was just chatting with @3rd-Eden and and I realized I referenced the internal property names in the post above.
Should be: new RedisStore({ redisPub: redisPub, redisSub: redisSubscriber, redisClient: redisClient }))

[diversario]

So, in case where auth is required - how would I do that here?

[dshaw]

@diversario Configure your instance of RedisClient externally and pass in the instance as indicated above.

var redis = require('redis')
  , sio = require('socket.io')
  , RedisStore = sio.RedisStore
  , io = sio.listen();

var port = 6379
  , hostname = 'redis.dshaw.com'
  , password = 's3cret'
  , db = 8;

// redisClient (can be the same as redisPub)
var redisClient = redis.createClient(port, hostname);
redisClient.auth(password, function (err) { if (err) throw err; );

var redisSubscriber = redis.createClient(port, hostname);
redisSubscriber.auth(password, function (err) { if (err) throw err; });

io.set('store', new RedisStore({ redisPub: redisClient, redisSub: redisSubscriber, redisClient: redisClient })));

[diversario]

Ah, that makes sense, thank you.

[dshaw]

np.