Allow Slack to unfurl/expand links to "login-required" Discourse instance

Contribuer Fonctionnalité
1

I reached out to the Slack folks with this request and got the following reply.

My request:

We have private Slack and Discourse instances and I’m looking for ways to better integrate the two. We also use Google Apps extensively.

It’d be awesome if there were a way to configure Slack with credentials to retrieve content from these other applications and unfurl/expand them accordingly.

I searched and haven’t found any way to do this yet. Is it already possible? If not, is this a request that could be considered in the future?

Thanks!

Their reply:

Thanks for taking the time to write in! A better standard for custom unfurling of private content is something we’re indeed looking to offer further down the road.

For now, we’d recommend you start by creating a Slack app, since we already have features that will get you close to what you’re looking for:

Slack developer docs | Slack Developer Docs

OAuth would allow teams who’ve added your app to send an authenticated request from Slack to your service (triggered by the posting of your private links).

You can use a outgoing webhook or bot to listen for these links, retrieve the relevant content, then send it back in a payload to the team as a workaround to offer this content.

I hope this suggestion helps you get started, and please let us know if there’s anything else we can help with!

Regards,
Tuan

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Code review request for `slackdoor` plugin
Discourse and Slack (or other group chat apps like IRC, HipChat, Gitter, etc)
2

I’m going to investigate working on this because I think it would add a ton of value to our private instance.

Here’s what I’m thinking:

  1. In Slack Configure an outgoing web hook in slack
    • trigger_word=myforum.domain.com
    • token=someToken
    • URLs=https://myforum.com/slackdoor/
    • text=the original chat message body that includes myforum.domain.com in there
  2. In Discourse Add /slackdoor endpoint to Discourse
    • site_setting:slackdoor_token=someToken
    • check that requestbody.token=site_setting.slackdoor_token
    • parse requestbody.text field for URL
    • retrieve post data from the post associated with the URL
    • respond with a rich body compatible with slacks message attachment api

Is part (2) of this plugin territory? Or something that belongs in core? (Or has anyone done something like this already that I haven’t seen yet).

3

I’ve got a basic implementation of this working along the line of what I posted above…

I will post a proper plugin topic and readme in the next day or so.

If anyone has any feedback in the mean time, please let me know:

https://github.com/mcwumbly/discourse-slackdoor

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4

Would it make sense to bake this into the Slack Notification plugin by @bernd?

5

Maybe, I’m not sure yet. At the moment, I need this feature and not what that other plugin has to offer. I imagine the reverse may be true too.

@sam if you have a few minutes to take a look at the direction this one is headed, I’d love a sanity check on how some of the authentication stuff is being overridden…

6

The canonical plugin topic is now here: Discourse Slackdoor Plugin

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