Integrating Prosody with Diaspora

Here you will find all you need to install and setup a Prosody XMPP server integrated with Diaspora users database. This tutorial was developed using Debain 7 but it probably will work well for all GNU Distributions. There is several steps and configurations you will need to do, so watch it carefully.

Understanding

The main goal is setup Prosody to be capable to compare the password received by the XMPP Client with the hashed password stored on Diaspora database. Diaspora password hash is done with bcrypt library, so we need to patch Prosody to do the same with the received password. To do so, we need to install a modified - mod_auth_sql module available below.

On this setup Prosody will use it's own SQL database to store users data like friends, etc. and it will connect on Diaspora database just to compare passwords. Then two database configurations will be required.

Follow the tutorial and this should work well.

SQL

Before install Prosody create a database and user for it. You can do it on the same Diaspora SQL Server. Just as Diaspora you can choose between MySQL or PostgreSQL.

Prosody

Prosody is a modern XMPP communication server. It aims to be easy to set up and configure, and efficient with system resources. Additionally, for developers it aims to be easy to extend and give a flexible system on which to rapidly develop added functionality, or prototype new protocols.

Prosody - XMPP Server

Installing Prosody

To install Prosody follow the official instructions described on their official site - - Download

Once Prosody is installed ten you can proceed.

Setup prosody.cfg.lua

Separated by topics here you have what you need to do on this file:

modules_enabled

Disable

"saslauth"

Enable

"bosh"
"legacyauth"

Setup and configure SQL

The default auth method is internal and it must be replaced by sql. But sql require some configurations like SQL Server, database, user and password to access Diaspora and Prosody databases.

Modify

authentication = "sql"

Add

storage = "sql"

MySQL Setup

sql = { driver = "MySQL", database = "prosody_xmpp", username = "prosody_xmpp", password = "pass", host = "localhost" }
sql_dsp = { driver = "MySQL", database = "diaspora_production", username = "diaspora", password = "pass", host = "localhost" }

PostgreSQL Setup

sql = { driver = "PostgreSQL", database = "prosody_xmpp", username = "prosody_xmpp", password = "pass", host = "localhost" }
sql_dsp = { driver = "PostgreSQL", database = "diaspora_production", username = "diaspora", password = "pass", host = "localhost" }

sql

This is the Prosody database setup where Prosody will store users friends lists and it's personal setup. The database user must have wright permission on this;

sql_dsp

This is the Diaspora database setup where Prosody will search the user password. The database user only need read permission.

Setup c2s_require_encryption

Change it to true, like this:

c2s_require_encryption = true

Add to the file

VirtualHost "your POD domain.foo"