When interacting with an user, like replying to some comments or adding photo tags, this remote user has no way to get notifications of what happen about him. This specification defines a method for managing such notifications.
The user who will receive notifications MUST:
In order to get incoming notifications in real-time, the client MAY advertise support for "urn:xmpp:inbox+notify" in its Entity Capabilities (XEP-0115) [1] data.
Clients that provide notifications inbox support MAY request all the "urn:xmpp:inbox" node items on the user's PEP service.
If the event to notify is listed in the following array, the client MUST consider using the defined event type:
| Type Name | Definition |
|---|---|
| comment | The sender replied to some comments. |
| like | The sender liked an item. |
| quote | The sender quoted the user in a post. |
| wall | The sender published an entry on the user's wall. |
| photo | The sender tagged the user in a photo. |
| video | The sender tagged the user in a video. |
If Romeo wants to notify all the users who posted a comment in a comment node, his client MUST send a payload to every user's PEP node.
The notification type is stored in the "title" attribute of the "link" element, also containing the URI ("href" attribute) to the target item. The notification text content is stored in the "content" element.
<iq from='romeo@montague.lit/mobile'
id='pub1'
to='juliet@capulet.lit'
type='set'>
<pubsub xmlns='http://jabber.org/protocol/pubsub'>
<publish node='urn:xmpp:inbox'>
<item id='9844f81e1408f6ecb932137d33bed7cfdcf518a3'>
<entry xmlns='http://www.w3.org/2005/Atom'>
<source>
<author>
<name>Romeo Montague</name>
<uri>xmpp:romeo@montague.lit</uri>
</author>
</source>
<content type="text">May I bring my horse?</content>
<link rel="via" title="comment" href="xmpp:benvolio@montague.lit?;node=urn%3Axmpp%3Amicroblog%3A0%3Acomments%3A97b64c89747aecbc8077cdab941d92be;item=f3fea3c068f66fee8b66673a6ccd78b6">
<published>2011-05-06T13:31:51Z</published>
</entry>
</item>
</publish>
</pubsub>
</iq>
Juliet tagged Romeo in a photo. Romeo's client gets pushed of the new item:
<message to='romeo@montague.lit'
from='juliet@capulet.lit'
type='headline'>
<event xmlns='http://jabber.org/protocol/pubsub#event'>
<items node='urn:xmpp:inbox'>
<item id='6728ffa81dddf38d375eb3d86e3f70086a41db65'>
<entry xmlns='http://www.w3.org/2005/Atom'>
<source>
<author>
<name>Juliet Capulet</name>
<uri>xmpp:juliet@capulet.lit</uri>
</author>
</source>
<content type='text'>Hiking with Romeo</content>
<link rel="via" title="photo" href="xmpp:juliet@capulet.lit?;node=urn%3Axmpp%3Aalbum%2Fa73933b0408af49f1305cb47a4bb10d7913f0fd0;item=6a18f571bc9b92a442aa80ad2649b0679c8e7b30">
<published>2011-05-06T14:39:43Z</published>
</entry>
</item>
</items>
</event>
</message>
Romeo viewed the last notification he received. His client now removes it (as defined in Publish-Subscribe (XEP-0060) [2]):
<iq type='set'
from='romeo@montague.lit/mobile'
id='retract1'>
<pubsub xmlns='http://jabber.org/protocol/pubsub'>
<retract node='urn:xmpp:notify'>
<item id='9844f81e1408f6ecb932137d33bed7cfdcf518a3'/>
</retract>
</pubsub>
</iq>
Romeo wants to clear all the pending notifications. His client purges the "urn:xmpp:inbox" PEP node (as defined in Publish-Subscribe (XEP-0060) [2]):
<iq type='set'
from='romeo@montague.lit/mobile'
id='purge1'>
<pubsub xmlns='http://jabber.org/protocol/pubsub#owner'>
<purge node='urn:xmpp:notify'/>
</pubsub>
</iq>
The client SHOULD check that the author informations (provided in the "author" element) are valid, by checking that the "publisher" item attribute value matches the "uri" element value. If there is a difference, the notification MIGHT NOT be displayed, and the client SHOULD remove it (see the Removing a notification section of this document).
This specification re-uses the schema for the Atom content format, i.e., the 'http://www.w3.org/2005/Atom' namespace (see RFC 4287).
Thanks to Laurent Eschenauer for his initial idea.
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The following requirements keywords as used in this document are to be interpreted as described in RFC 2119: "MUST", "SHALL", "REQUIRED"; "MUST NOT", "SHALL NOT"; "SHOULD", "RECOMMENDED"; "SHOULD NOT", "NOT RECOMMENDED"; "MAY", "OPTIONAL".
1. XEP-0115: Entity Capabilities <https://xmpp.org/extensions/xep-0115.html>.
2. XEP-0060: Publish-Subscribe <https://xmpp.org/extensions/xep-0060.html>.
Note: Older versions of this specification might be available at https://xmpp.org/extensions/attic/
Updated contact information for Valerian Saliou.
First draft.
@report{saliou2011inbox,
title = {Notification Inbox},
author = {Saliou, Valerian},
type = {XEP},
number = {XXXX},
version = {0.0.2},
institution = {XMPP Standards Foundation},
url = {https://xmpp.org/extensions/xep-XXXX.html},
date = {2011-05-06/2015-12-09},
}END