Prosody
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Prosody is a light-weight, easy to configure, XMPP server. XMPP is an open and extensible Internet protocol used for communications, presence, identification, authentication etc. It's a big part of the Semantic Web movement which is all about achieving the functionality we need using open standards instead of specific applications.
Contents
Configuration
The prosody configuration is in /etc/prosody with a similar style to Apache or Nginx where individual site's configuration each exist in their own file in the conf.avail sub-directory usually having a filename matching the domain name. Sites are then enabled by creating sym-links in the conf.d sub-directory pointing to the available sites.
Here's an example configurtion file for a specific domain which is set up as a chatroom server starting with the familiar VirtualHost directive to indicate the domain that this configuration covers.
VirtualHost "xmpp.organicdesign.nz"
ssl = {
key = "/etc/prosody/certs/xmpp.organicdesign.nz.key";
certificate = "/etc/prosody/certs/xmpp.organicdesign.nz.crt";
}
-- use an empty admins list to disable all remote administration functions
admins = { "admin@xmpp.organicdesign.nz" }
Component "conference.xmpp.organicdesign.nz" "muc"
name = "The dharma.casa XMPP chatrooms server"
restrict_room_creation = true
allow_registration = false
c2s_require_encryption = true
s2s_require_encryption = true
modules_enabled = {
"tls",
"roster",
"register"
}Users
Users are managed from the CLI with prosodyctl, or can be added from a client with sufficient capabilities such as Pidgin if you're using an administrator account. Users can also change their own passwords and other personal information if the client supports it.
Chatrooms
todo: the domain of the chat server is the domain of the "muc" component as as defined in the config, in our case conference.xmpp.organicdesign.nz.
SSL
Todo: import script needed for LE certs, can use LE's hook, and symlinks for certs using alt-names
prosodyctl --root cert import /etc/letsencrypt/live
