Net::XMPP::Namespaces

Net::XMPP::Namespaces is a software that provides a deep dive into how Net::XMPP handles namespaces and how you can add custom ones. This program serves as a storage bin for all the Namespace information that Net::XMPP requires. XMPP is a well-defined protocol with three top-level packets which include message, iq, and presence. Additionally, there is a way to extend the protocol via namespaces in a clear and structured manner.

Two major ways that namespaces are used in Jabber is for making the a generic wrapper and as a way to add data to any packet via a child tag . Though is used in this context to represent the packet, in reality, it could be any child tag like , , , among others.

The Info/Query packet uses namespaces to determine the type of information to access. Usually, there is a tag in the that represents the namespace, although it can be any tag. The definition of the Query portion is the first tag that has a namespace. After that Query stanza can be any number of other stanzas (tags) you want to include. The Query packet is represented and available by calling GetQuery() or GetChild(), and the other namespaces are available by calling GetChild().

The X tag is just a way to piggyback data on other packets. For instance, the timestamp for a message can be embedded using Jabber:x:delay or signing your presence for encryption using Jabber:x:signed. To make it easier to access the XML for a namespace, Net::XMPP has sought to find a way to clearly define the functions needed. You can access the full documentation and see two examples of real namespaces that demonstrate the working of the program.

Overall, Net::XMPP::Namespaces is a great software that explains how Net::XMPP handles namespaces and how you can extend them to fit your purposes. It is easy to use and clear in the methods it provides. If you are interested in XMPP, then this software is definitely worth trying out.