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--- |
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labels: |
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- 'Stage-Alpha' |
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summary: 'XEP-XXX: Cloud push notifications for MUC' |
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--- |
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# Introduction |
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This is an experimental fork of [mod_cloud_notify](https://modules.prosody.im/mod_cloud_notify.html) |
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which allows a [XEP-0357 Push Notifications App Servers](https://xmpp.org/extensions/xep-0357.html#general-architecture) |
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to be registered against a MUC domain (normally they're only registered against |
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your own chat server's domain). |
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The goal here is to also enable push notifications also for MUCs. |
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In contrast to mod_cloud_notify, this module does NOT integrate with |
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mod_smacks, because a MUC can't access a remote user's XEP-0198 queue. |
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Configuration |
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============= |
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Option Default Description |
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------------------------------------ ----------------- ------------------------------------------------------------------------------------------------------------------- |
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`push_notification_with_body` `false` Whether or not to send the message body to remote pubsub node. |
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`push_notification_with_sender` `false` Whether or not to send the message sender to remote pubsub node. |
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`push_max_errors` `16` How much persistent push errors are tolerated before notifications for the identifier in question are disabled |
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`push_notification_important_body` `New Message!` The body text to use when the stanza is important (see above), no message body is sent if this is empty |
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`push_max_devices` `5` The number of allowed devices per user (the oldest devices are automatically removed if this threshold is reached) |
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There are privacy implications for enabling these options because |
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plaintext content and metadata will be shared with centralized servers |
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(the pubsub node) run by arbitrary app developers. |
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## To test this module: |
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The [Converse](http://conversejs.org/) client has support for registering push |
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"app servers" against a MUC. |
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You specify app servers with the [push_app_servers](https://github.com/conversejs/converse.js/blob/master/docs/source/configuration.rst#push_app_servers) |
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config setting. |
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And then you need to set [allow_muc_invitations](https://github.com/conversejs/converse.js/blob/master/docs/source/configuration.rst#allow_muc_invitations) |
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to `true` so that these app servers are also registered against MUC domains. |
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Then, when you enter a MUC, Converse will try to automatically registered the |
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app servers against the MUC domain. |
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Note: currently Converse currently doesn't let you register separate app servers for |
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a MUC domain. The same app servers are registered for the MUC domain and your |
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own domain. |
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## To be done: |
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We currently don't handle "ghost connections", users who are currently offline |
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but the XMPP server is not yet aware of this and shows considers them online in |
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the MUC. |
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Prosody already checks for error bounces from undelivered groupchat messages |
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and then kicks the particular user from the room. |
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So these ghost connection users eventually get kicked from the room. |
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We now need a module that fires an event when a groupchat messages can't be |
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delivered to an occupant. The module can look up the undelivered message in MAM |
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and include it in the event. |
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In mod_muc_cloud_notify we can then listen for this event and send out a push |
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notification. |