Table of Contents
The Chat tool is a basic online group chat client for CSS. The emphasis is on use in a control room context:
Technically, it is an XMPP chat protocol client that can communicate with other clients that support the same protocol (Pidgin, Google chat, Mac OS iChat, ...).
Start the chat client from the menu CSS
,
Utilities
, Group Chat
.
The suggested user name that is initially displayed in the Name:
field of the chat tool is the name of the user logged onto the computer
suffixed by the network name of the computer.
The default password will be a dollar sign followed by the user name,
and the tool will attempt to create an account for that user and password
on the chat server.
The idea is that most users can simply press the “Return”
respectively “Enter” key in the user name field to log on
with the suggested user name and password.
Advanced users may enter a user name and password
that was registered with the chat server by other means.
Once connected to the group chat, you can see other participants
who are connected to the chat in the Participants
list.
Enter text to send in the Send:
field, completing lines to
send with the “Return” key.
By right-clicking on one of the entries
in the Participants
list you can access
a context menu that allows you to “Contact”
another chat participant.
A separate chat panel will open for communicating with only that user,
outside of the group chat.
Note that the other participant will be asked if she accepts
the invitation to an individual chat, and may decline.
By right-clicking on one of the entries
in the Participants
list you can access
a context menu with options “Send File”
and “Send Screenshot”.
When selecting to send a screen-shot, an image of your
current desktop will be sent to the receiver.
When sending a file, you will be prompted for the name
of the file that you want to send.
Note that in either case the receiving participant of the chat
will be asked if she accepts the file that you sent,
and may decline.
XMPP is an open technology for real-time communication. More information can be found at http://xmpp.org, including lists of XMPP server implementations and other chat clients compatible with XMPP.
Openfire
, available from
http://www.igniterealtime.org/projects/openfire,
is an open source, Java-based XMPP server
for Windows, Linux and Mac OS X.
For Windows, it includes an executable bin/openfire.exe
to start and stop the server and to access its web interface via
a “Launch Admin” button.
When starting Openfire for the first time, you need to configure the following via its web interface:
localhost
for initial tests on one computer, or set to the complete
and correct host name.
From now on, to log into the admin web interface of Openfire, you have to use just “admin” and the password that you configured, not “admin@localhost”!
In the Openfire online admin interface you should check the setting under “Server”, “Server Settings”, “Registration & Login”. By default, users should be allowed to automatically create new accounts. The CSS chat client will use this option to attempt automatic account creation with the suggested user name and password as described in the section called “Basic Usage”. If you choose to disable automated account creation, you need to create user accounts in the Openfire admin interface.
The CSS chat client expects to connect to a chat room called “css”. From the Openfire online admin interface, select the “Group Chat” tab. Press “Create New Room”:
css
as the room ID.Show Real JIDs of Occupants to:
,
select “Anyone”.
This will allow the chat clients to directly contact
chat group participants for individual chats and file
exchange.
@conference
and the host name of the server, similar to
css@conference.localhost
To reset the Openfire configuration,
for example after forgetting the admin password,
stop openfire. In the file conf/openfire.xml
,
locate the setup
entry. Set it to false
,
start Openfire again and when you now access the admin web interface,
you can configure a new admin password.
The CSS chat clients has the following preference settings:
Pidgin, available from http://pidgin.im, is an open-source chat client for various operating systems that can be used to test an XMPP server setup.
To configure Pidgin for a connection with Openfire, use the Pidgin menu bar to create an account with the following settings:
In the “Advanced” account setup panel,
check that the XMPP connect port is set to 5222
and the file transfer proxies is set to the host name
of your XMPP server port 7777, for example
localhost:7777
.