Below are instructions on how to install the Google Wave Federation Prototype Server. I used Ubuntu 9.04 (Jaunty Jackalope) and ejabberd as the Jabber/XMPP instant messaging server.

Step 1: Install Java
Java is necessary because the Wave Federation Prototype Server is delivered as a Java application that talks XEP-0114.

First make sure your repositories are set to multiverse:

vi /etc/apt/sources.list

This is what my sources.list looks like.

deb http://archive.ubuntu.com/ubuntu/ jaunty main restricted universe
deb-src http://archive.ubuntu.com/ubuntu/ jaunty main restricted universe

deb http://archive.ubuntu.com/ubuntu/ jaunty-updates main restricted universe
deb-src http://archive.ubuntu.com/ubuntu/ jaunty-updates main restricted universe

deb http://security.ubuntu.com/ubuntu jaunty-security main restricted universe
deb-src http://security.ubuntu.com/ubuntu jaunty-security main restricted universe

deb http://us.archive.ubuntu.com/ubuntu/ jaunty main restricted multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ jaunty main restricted multiverse

Second update you repositories

sudo apt-get update

Third install Java:

sudo apt-get install sun-java6-jdk sun-java6-fonts

You will also need to install Ant to build the Wave server:

sudo apt-get install ant

Step 2: Install ejabberd

sudo apt-get install ejabberd

Step 3: Configure ejabberd

First make a copy of your configuration file

cp /etc/ejabberd/ejabberd.cfg /etc/ejabberd/bu-ejabberd.cfg

Second edit the configuration file

sudo vi /etc/ejabberd/ejabberd.cfg

These following settings are basic configurations to get your ejabberd server up and running.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Options which are set by Debconf and managed by ucf

%% Admin user
{acl, admin, {user, “username”, “yourhostname.com”}}.

%% Hostname
{hosts, ["yourhostname.com"]}.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%% When a user registers, send a notification to
%% these Jabber accounts.
%%
{registration_watchers, ["username@yourhostname.com"]},

{access, register,[{deny, all}] }

Up to this point we just specified the host name and identified who will be the admin of this server. It is important to understand that no user has been create. We will do that later.

Stop and start ejabberd:

sudo /etc/init.d/ejabberd stop
sudo /etc/init.d/ejabberd start

Create your user, make it match the user you specified as your admin (or create more than one):

ejabberdctl register username yourhostname.com password

Create a self signed certificate for ejabberd:

When we installed ejabberd, it automatically created a certificate for us.
The problem is it used the common name of ejabberd. This is not a huge problem but for some XMPP clients it will complain and warn users about the common name mismatch.
To fix this, we need to make the common name match our domain name (For example www.example.com).
During the process of creating your certificate, it will ask you for a password and then it will ask you to set the subject name of the certificate (which will have the common mame). Make the password be whatever you want.

For the subject name, just make sure the common name matches your domain name. The following block of text is an example of what the certificate creation process will look like while you generate your subject name. The only piece that matters is the Common Name.

Country Name (2 letter code) [AU]:
State or Province Name (full name) [Some-State]:
Locality Name (eg, city) []:
Organization Name (eg, company) [Internet Widgits Pty Ltd]:
Organizational Unit Name (eg, section) []:
Common Name (eg, YOUR name) []: www.example.com
Email Address []:

Lets create your certificate:

sudo cp /etc/ejabberd/ejabberd.pem /etc/ejabberd/bu-ejabberd.pem
openssl req -new -x509 -newkey rsa:1024 -days 3650 -keyout privkey.pem -out server.pem
openssl rsa -in privkey.pem -out privkey.pem
cat privkey.pem >> server.pem
rm privkey.pem
sudo mv server.pem /etc/ejabberd/ejabberd.pem

Step 4: Install the Google Wave Federation Prototype Server:
First install Mercurial:
Mercurial is a distributed version control system.

You can check and see if its already install by typing:

hg –version

If you need to install it just type:

sudo apt-get install mercurial

Second get the Google wave code:

hg clone https://wave-protocol.googlecode.com/hg/ wave-protocol

This command will add the Google Wave Federation Prototype Server source into a wave-protocol directory.

Third build the GWFPS using ant:
Move into the wave-protocol directory:

cd wave-protocol

Type the following command to build:

ant

Once the build is complete you should see all the .jar files you need in the dist directory.

Step 5: Configure ejabberd to reference the GWFPS

Add this to the listener section of your ejabberd.cfg file:

{8888, ejabberd_service, [{access, all}, {shaper_rule, fast},
{hosts, ["wave.yourhostname.com"],
[{password, "yourpassword"}]}
]}

Step 6: Start the wave (the ugly way)!
Make sure you edit the values of the arguments to match your settings:

java -jar dist/fedone-server-0.2.jar -client_frontend_hostname localhost –client_frontend_port 3456 –xmpp_component_name=wave –xmpp_server_hostname=yourhostname.com –xmpp_server_ip=127.0.0.1 –xmpp_server_port=8888 –xmpp_server_secret yourpassword –xmpp_server_ping=”" –certificate_domain=yourhostname.com –certificate_private_key=test/org/waveprotocol/wave/examples/fedone/crypto/test.key –certificate_files=test/org/waveprotocol/wave/examples/fedone/crypto/test.cert  –waveserver_disable_verification=true –waveserver_disable_signer_verification=true

Using your XMPP client you can do a service directory look up and see if the GWFPS is running (I used Psi):

Step 7: Configure and run the server (the prettier way):
First copy the run-config.sh.example to run-config.sh found in your wave-protocol directory.

cd /etc/ejabberd/wave-protocol/
cp run-config.sh.example run-config.sh

Second configure this file using the values you passed in Step 6:

vi run-config.sh

Here is the run-config.sh file with the values that I edited marked in bold:

#!/bin/bash

# Configuration for the FedOne run scripts.
#
# Copy this file to run-config.sh and configure the variables there.
# Please see http://code.google.com/p/wave-protocol/wiki/Installation for
# instructions on how to configure the flags.
#

# Remove this line after configuring
#echo “You must configure the run-config.sh script” ; exit 1

### Variables common to the server, clients, and agents
###

# Domain name of the wave server
WAVE_SERVER_DOMAIN_NAME=yourservername.com

# Host name and port the wave server’s client frontend listens on
WAVE_SERVER_HOSTNAME=localhost
WAVE_SERVER_PORT=3456

# The version of FedOne, extracted from the build.properties file
FEDONE_VERSION=`grep ^fedone.version= build.properties | cut -f2 -d=`

### Server-specific variables
###

# These will probably need to be changed
XMPP_SERVER_SECRET=yourpassword
PRIVATE_KEY_FILENAME=test/org/waveprotocol/wave/examples/fedone/crypto/test.key
CERTIFICATE_FILENAME_LIST=test/org/waveprotocol/wave/examples/fedone/crypto/test.cert

# These should be okay to leave alone
CERTIFICATE_DOMAIN_NAME=$WAVE_SERVER_DOMAIN_NAME
XMPP_SERVER_HOSTNAME=$WAVE_SERVER_DOMAIN_NAME
XMPP_SERVER_PORT=5275

# Set XMPP_SERVER_IP to localhost if the XMPP and FedOne servers are
# running on the same host
XMPP_SERVER_IP=$XMPP_SERVER_HOSTNAME

# Set true to disable the verification of signed deltas
WAVESERVER_DISABLE_VERIFICATION=false

# Set true to disable the verification of signers (certificates)
WAVESERVER_DISABLE_SIGNER_VERIFICATION=true

Run the server from within the wave-protocol directory:

./run-server.sh

Open another terminal, run client from within the wave-protocol directory:

./run-client-console.sh yourusername

To see a really nice example of how you can play with the client make sure you check out the screen cast at dambalah.com. In his screencast Luc does an excellent job of showing us how to get the GWFPS up and running with OpenFire

Resources:
These are the resources and instructions I followed to write this entry:

• [OT] Installing ejabberd on debian / ubuntu
• Using Google Wave reference implementation with ejabberd
• Screencast: Install Google Wave Server
• Google Wave Protocal