When initially run, a messaging client typically shows some list of contacts and chatrooms, and whether any new messages are present in each.
The current mechanism for achieving this UX involves a complete synchronization of the server-side archive, and is both time-consuming and bandwidth-intensive. This specification proposes a solution to directly obtain such data from the server.
Moreover, the information gathered by the server to support this can be used in support of mobile push notifications.
The Inbox consists semantically of a list of conversations in order of last activity. Each conversation is identified by a jid - for group chats this would be the chatroom, and for individual contacts this would be their bare jid.
Each Inbox entry includes a count of messages considered new, the last MAM stanza-id relating to this conversation, and the last MAM result for this conversation, as defined by Message Archive Management (XEP-0313) . In addition, a client-controlled boolean marker can be used to indicate a manual "set unread" state.
Finding more messages from this conversation can be achieved via a MAM query using
with to specify the
An <iq/> of type "get" is used, containing a single element
<inbox/>, containing an optional RSM
filter as specified by Result Set Management (XEP-0059) . This will typically be sent only to the user's own bare jid. The server
responds with a sequence of <message/> stanzas, each containing an
<entry/> element qualified by the
urn:xmpp:inbox:0 namespace with a number of attributes:
jid- contains the Jid of the conversation for this entry.
unread- contains a count of messages which are deemed to be unread by the server.
marked- a boolean indicating that a client has explicitly marked the conversation for some reason.
<entry/> element contains the latest instant message, if any, which is encapsulated as a
<result/> element as defined by Message Archive Management (XEP-0313) . This contains collated fastenings if supported by the
After all entries required have been returned, the server then responds with an <iq/> result containing a
<fin/> element qualified by
urn:xmpp:inbox:0. This contains the RSM data, a total count of conversation
entries within the inbox, a count of conversations with unread messages, and a total count of unread messages.
Any counter of unread SHOULD be accurate, however client implementors please note that due to heuristics involved and other issues these counters can be inaccurate at times.
A client MAY at any time set a conversation as marked by sending an <iq/> of type "set" containing something or other. This causes the server to set the "marked" flag on a conversation. A client SHOULD display a marked conversation in the same way as an unread conversation, and explicitly removed the marked flag when the conversation is considered re-read.
Removing a marked flag, even when the conversation is not currently marked, causes the unread counter for that conversation to be set to zero.
Servers MUST track which instant messages sent to clients remain unread.
Let us assume a user has only two contacts they have exchanges messages with, and a single chatroom. Asking for their inbox is simple:
The server responds with a list of conversations:
After the list of messages, the server completes its response with a the reply to the original IQ.
TODO - Hopefully roughly given by the examples.
This XEP requires no interaction with the Internet Assigned Numbers Authority (IANA) .
The author notes that this protocol is heavily based on the
mod_inbox system of MongooseIM. In addition, Kevin Smith provided useful feedback which has shaped this specification.
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