Nothing happens when joining from iOS

dmdque commented 7 years ago

Environment

Elixir version (elixir -v): 1.3.4
Phoenix version (mix deps):
- connection 1.0.4 (Hex package) (mix) locked at 1.0.4 (connection) a1cae722 ok
- fs 0.9.1 (Hex package) (rebar) locked at 0.9.2 (fs) ed17036c ok
- gettext 0.12.1 (Hex package) (mix) locked at 0.12.1 (gettext) c0624f52 ok
- ranch 1.2.1 (Hex package) (rebar) locked at 1.2.1 (ranch) a6fb992c ok
- poolboy 1.5.1 (Hex package) (rebar) locked at 1.5.1 (poolboy) 6b461639 ok
- decimal 1.3.1 (Hex package) (mix) locked at 1.3.1 (decimal) 157b3ced ok
- poison 2.2.0 (Hex package) (mix) locked at 2.2.0 (poison) 4763b69a ok
- db_connection 1.1.0 (Hex package) (mix) locked at 1.1.0 (db_connection) b2b88db6 ok
- phoenix_pubsub 1.0.1 (Hex package) (mix) locked at 1.0.1 (phoenix_pubsub) c10ddf62 ok
- cowlib 1.0.2 (Hex package) (rebar) locked at 1.0.2 (cowlib) 9d769a1d ok
- cowboy 1.0.4 (Hex package) (rebar) locked at 1.0.4 (cowboy) a324a8df ok
- mime 1.0.1 (Hex package) (mix) locked at 1.0.1 (mime) 05c39385 ok
- plug 1.2.2 (Hex package) (mix) locked at 1.2.2 (plug) cfbda521 ok
- phoenix_html 2.8.0 (Hex package) (mix) locked at 2.8.0 (phoenix_html) 777598a4 ok
- phoenix 1.2.1 (Hex package) (mix) locked at 1.2.1 (phoenix) 6dc59224 ok
- phoenix_live_reload 1.0.5 (Hex package) (mix) locked at 1.0.5 (phoenix_live_reload) 829218c4 ok
- postgrex 0.12.1 (Hex package) (mix) locked at 0.12.1 (postgrex) 2f8b46cb ok
- ecto 2.0.6 (Hex package) (mix) locked at 2.0.6 (ecto) 9dcbf819 ok
- phoenix_ecto 3.0.1 (Hex package) (mix) locked at 3.0.1 (phoenix_ecto) 42eb486e ok
NodeJS version (node -v): v6.7.0
NPM version (npm -v): 3.10.7
Operating system: macOS Sierra 10.12.1

Expected behavior

Join room from iOS and see logs on the server to confirm that the room has been joined.

Actual behavior

Join room from iOS, no logs on server.

Description

I'm using a simple Phoenix instance, and have a simple channel join event working as expected with a JS client. I'm using the following on iOS SwiftPhoenixClient:

let socket = Socket(domainAndPort: "localhost:4000", path: "socket", transport: "websocket")
socket.join(topic: "room:lobby", message: Message(subject: "status", body: "joining")) { channel in
    let channel = channel as! Channel
    print("join")
}

But nothing is logged on the server. I also tried with Birdsong with the same result:

    let socket = Birdsong.Socket(url: URL(string: "http://10.88.111.2:4000/socket/websocket")!)
    socket.connect()

I'm watching the traffic going through the server's port 4000 (sudo tcpdump port 4000) and am seeing some packets flow every time I trigger the above code. eg. (10.88.111.2 is the server's IP, and 10.88.111.30 is the iOS client's IP)

// With SwiftPhoenixClient
14:21:48.161241 IP 10.88.111.30.61762 > 10.88.111.2.terabase: Flags [S], seq 110794316, win 65535, options [mss 1460,nop,wscale 5,nop,nop,TS val 861181191 ecr 0,sackOK,eol], length 0
14:21:48.161393 IP 10.88.111.2.terabase > 10.88.111.30.61762: Flags [S.], seq 1986623172, ack 110794317, win 65535, options [mss 1460,nop,wscale 5,nop,nop,TS val 607536416 ecr 861181191,sackOK,eol], length 0
14:21:48.163864 IP 10.88.111.30.61762 > 10.88.111.2.terabase: Flags [R], seq 110794317, win 0, length 0

// With Birdsong
14:21:51.362180 IP 10.88.111.30.61763 > 10.88.111.2.terabase: Flags [S], seq 1908544453, win 65535, options [mss 1460,nop,wscale 5,nop,nop,TS val 861184367 ecr 0,sackOK,eol], length 0
14:21:51.362332 IP 10.88.111.2.terabase > 10.88.111.30.61763: Flags [S.], seq 31220766, ack 1908544454, win 65535, options [mss 1460,nop,wscale 5,nop,nop,TS val 607539593 ecr 861184367,sackOK,eol], length 0
14:21:51.365562 IP 10.88.111.30.61763 > 10.88.111.2.terabase: Flags [R], seq 1908544454, win 0, length 0

I've also created a ticket here: https://github.com/davidstump/SwiftPhoenixClient/issues/61. But it seems unlikely that the client is the issue since this happens with two of them.

josevalim commented 7 years ago

Does it work through regular JS websocket?

dmdque commented 7 years ago

Yes it does. Joining channels and chatting works fine with https://github.com/chrismccord/phoenix_chat_example. But using the same backend with an iOS client doesn't.

chrismccord commented 7 years ago

Do you have check_origin: false in your endpoint config? By default we check origin which makes sense for browsers, but not other clients. Can you confirm it's disabled?

chrismccord commented 7 years ago

Though I would expect our logs to whine at you about this, but lets start there

dmdque commented 7 years ago

Yup, I've got that line.

chrismccord commented 7 years ago

Does the birdsong client log anything? Is the connection established on the client?

dmdque commented 7 years ago

Hold on, I got the Birdsong client to work. Looks like I was missing some code to make it actually join:

let socket = Birdsong.Socket(url: URL(string: "http://10.88.111.2:4000/socket/websocket")!)
socket.onConnect = {
    let channel = socket.channel("room:lobby", payload: ["user": "test"])
}
socket.connect()

In an effort to keep things simple I left out onConnect, thinking that it did nothing important. Too much simplification...

SwiftPhoenixClient still isn't working though, but it's not an issue with this project.

Thanks!

phoenixframework / phoenix