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CLChat.DOC
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1995-08-08
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CLChatSystem 4.7 Standalone
---------------------------
(1) Copyrights
The CLChatServer, the CLChatD, the CLCharIRCD, CLChatLink and the
CLChatGUI are Copyright (C) 1994-1995 Oliver Wagner
(o.wagner@lsd.wupper.de)
All Rights Reserved.
The files are freely distributable as long as no modifications are
made to any part of the package and all files are distributed in
a single archive, accompanied by this documentation file.
CLChatGUI is a MUI application. MUI is (C) 1993-1995 Stefan Stuntz.
AmiTCP is (C) 1994-95 NSDI Inc.
(2) Overview
This is a multi-user multi-channel chat system somewhat based on
IRC. It can be used via TCP/IP connections or totally standalone.
It features:
o unlimited number of users
o unlimited number of channels
o private messaging
o automatic user identification
o NEW: private channels
o NEW: IRC compatibility demon to allow any IRC client to join
a clchat server.
o flood protection
o user banning
o multiple server capability with loop protection
o channel operator privileges for setting channel topics
and removing users from a channel
o chat operator privilege for global channel operator status
and removing users from chat completely
The user frontend for the chat is a comfortable GUI client
providing
o easy user & channel operations
o input history
o automatic notifications of certain events via Deiconification
or beep
o builtin ARexx-Port
o NEW: Dialog windows for direct user<->user communication
o NEW: direct file transfers to remote users via IP
There is also a ANSI client suitable for BBS usage:
o full ANSI/VT100 compliant text output, completely using
STDIO.
o suitable for any BBS package capable of running STDIO apps.
o different colors for various messages.
(3) Origin
The Chatsystem is originally part of the Connectline/Amiga BBS
package which features an ANSI text client for online usage
and the possibility to login to the chat during Hydra file
transfers. The standlone ChatServer and the GUI client are
only a subset of the whole package.
Write to Connectline@pluribus.wupper.de for more information
about Connectline or take a look at
http://www.pluribus.wupper.de/Connectline.html
AK runs a CLChat WWW page; try
http://ramiga.cts.com/CLChat/CLChat.html
(4) Client installation
No installation required, simply run the Client from either
Shell or Workbench. It will prompt for your user information
and the server to connect to. See the Client guide for
more information about using it.
(5) Server Installation
Copy the CLChatServer to AmiTCP:bin
Copy the CLChatLink to AmiTCP:bin
Copy the CLChatD to AmiTCP:serv
Copy the CLChatIRCD to AmiTCP:serv
Add the following lines to AmiTCP:db/services:
clchat/5555
clirc/6667
Add the following lines to AmiTCP:db/InetD.conf:
clchat stream tcp nowait root amitcp:serv/clchatd
clirc stream tcp nowait root amitcp:serv/clchatircd
Add the following line to AmiTCP:bin/startnet:
run >NIL: AmiTCP:bin/CLChatServer
Optionally create a file named AmiTCP:db/ChatServer.MOTD
containing a text file which will be display to each new user
logging into the chat.
Optionally create a file named AmiTCP:db/ChatServer.OPList
containing a list of users which have the "Chat Operator"
privilege. These users automatically receive channel operator
status for every channel they join and can use the hidden
server command "/KILL" to remove other users from the
chat server. They may also the "/NETINFO" command to inquiry
chat network information, and use the BAN commands to list,
add or remove user bans.
This file contains entries of the following form:
Nickname Netaddress
For example:
Olli olli@lsd.wupper.de
Optionally create a file named AmiTCP:db/ChatServer.Servers
containing a list of remote servers allowed to connect to your
server. This file contains a list of FQDN addresses or a
standard AmigaDOS wildcard matching FQDN addresses. If this
file is missing, all servers are allowed to connect.
If you want to ban a single server only, you can add a
exclusive pattern. For example, to ban server "lsd.wupper.de"
only, add the line
~(lsd.wupper.de)
The first line of the file may contain a number specifying
the maximum number of servers to connect. This defaults to 8.
You can make CLChatD and CLChatLink resident to increase
startup speed and reduce memory usage; this might proof
useful if you run or accept several connections.
(6) Using the server
Using the server should be quite self-explainatory. Use the
command "/?" to obtain a list of available commands.
Channels are created automatically when a users joins
and removed when the last user leaves. There is a
persistant default channel called MAIN on which every
new users starts. The first user entering a channel
will obtain channel operator status. He may change
the topic, kick other users, give or remove channel
operator status from them.
Specifc users may be banned from a server using the
/BANADD command which is available to chat operators only.
Bans are stored in the file "AmiTCP:DB/ChatServer.UserBans"
and contain FQDN addresses or a AmigaDOS wildcard matching
FQDN addresses. You may want to use wildcards of the form
"#?@machine" because the user part of addresses is generally
the same as the nickname which may be set by the user.
For example, to ban users from lsd.wupper.de, use the
entry
#?@lsd.wupper.de
Note that adding a line "#?" will make you quite lonely
on your server.
The server respons to three shell signals. CTRL^C will
cause it to terminate instantly, CTRL^E will cause a
restart (with reloading the executable) and CTRL^F will
cause the server to output diagnostic stats into the
shell window.
(7) Connecting several servers
After running your local server, use the command "CLChatLink"
to connect to a different server. Usage is
CLChatLink <remoteservername> <remoteport> [retrycount]
The retrycount is optional; if specified, CLChatLink will
retry a connection until the count runs out. If a already
successfully established connection break, retries start
back from 1.
Note that the server-server protocol is quite bandwidth
expensive, so you should *NOT* create a server for single
users only.
Note that nicknames must be unique on all servers; if servers
connect and a nick collision occurs, both users are removed
from their correspondending servers and a nick collision
message is broadcasted.
Server loops may be created; every server message carries
a unique messageid which will be checked by every server
it passes; dupes are filtered out. Server loops may raise
broadcast speed esspecially on slow network connections.
The server uses some kind of smart routing for private
messages: if the destination of a private message is on a
directly linked server, the message is send to this
server only. If not, it is broadcasted, so no routing
tables are necessary.
(8) History:
See the CLChatGUI.(doc|guide) for more specific GUI
client revision information.
Release 3.0
-----------
- the server now uses smart routing for private messages;
if the destination server is a direct link, no broadcast
is produced
- added user banning capabilities
- added /NETINFO server inquiry broadcast
- added chat operator command output on /HELP if the
use is a chat operator.
- made /SERVERS command available to normal chat users
- updated CLChatLink to correctly fill in the remote
server name.
- extended server msgs with a message id tag to filter
message dupes produced by server loops.
Release 3.1
-----------
- everything is now compiled with SAS/C 6.55. Also added
server version directly compiled for 68030 CPUs.
- added more detailed NETINFO output.
- added /STAT command for chat operators. Also "/STAT *"
broadcasts /STAT requests via net.
- extended /USERS command with "S" option to display
users with the servers they're on.
- added /RESTART command for chat operators to have
the server restart itself. Also CTRL^E will cause
a restart.
- added CTRL^F response displaying server stats to
the shell.
- fixed CLChatLink and CLChatD to fill in the IP
address of remote servers for the /SERVERS command
output.
- fixed smart privmsg routing.
- fixed user removement for flood protection and
/KILL commands.
- fixed may GUI client bugs & quirks.
- GUI client now has IP file transfer option similar
to DCC
- GUI client now has a PING option to test links
from user to user directly
- fixed bug in the server which caused a stack
overwrite on privmsgs > 230 bytes
- both CLChatD and CLChatLink are now "pure" code
and can be made resident for more efficient memory
usage
Release 3.2
-----------
- fixed local /STAT output to report only local
users
- fixed server validation bug; checked IP addresse instead
of FQDN
- fixed server reject error message
- cleaned up GUI client scroller handling
- added PLUBOT sample code
Release 3.3
-----------
- CLChatLink was seriously broken; retry didn't worked
and broken active links causes server crashes due to
illegal messages.
- increased stacksizes or reduced stack usage in all parts
of the package due to frequent crashes on some setups.
- some GUI client cleanup.
Release 3.4
-----------
- fixed some quirks in the GUI-Client
- fixed time bug in the CLChatServer
Release 3.6
-----------
- did some work on the CLChatGUI-Client (see history)
- added MS-Windows client (clchatwi.LZH).
- new chat operator command /NOTICE.
- logfile option: if a file AmiTCP:Log/ChatServer.LOG
exists, the chat server will log all outgoing
messages with that file.
- cleaned up /MSG to send the acknowledge msg before
the destination message.
- fixed several typos.
- CLChatLink now no longer needs the port arguments,
but defaults to 5555.
Release 3.7
-----------
- added installer script by Robert Reiswig (rcr@netcom.com)
Release 3.8
-----------
- fixed a bug in the server connect code which caused
server names to be truncated at offset 19, causing trouble
when having a server validation list.
Release 4.0
-----------
- did some work on the CLChatGUI-Client (see history)
- fixed a bug in CLChatlink causing trouble with server
connects if "ChatServer.Servers" existed ("\r" wasn't
filtered correctly)
- several internal fixes & cleanups in the chatserver.
Release 4.1
-----------
- did some work on the CLChatGUI-Client (see history)
- /MSG may now be abbreviated by /M.
- added /QUIT command to gracefully terminate the
chatserver link with the possibility to give a
reason (CLChatD will put a net error string to
the reason field if the link terminates due to
net failure).
- fixed several problems with the topic update
upon server connects. A connecting server will
now obtain the topics from the server it connects to.
Note: This *requires* updating CLChatLink!
- several internal fixes & cleanups in the chatserver.
- removed annoying SINFO reports upon server connect.
- fixed a bug in CLChatD which caused users without
working nameservers to be logged in without any
hostname at all instead of their ip address.
- added a really cool chatbot ;-)
Release 4.2
-----------
- fixed a nasty bug in the CLChatGUI-Client (see history)
- added standalone ANSI terminal client for BBS usage.
- fixed a bug in the chat bot causing enforcer hits
upon executing commands without parameters.
- added FAQMANAGER to the bot directory.
Release 4.3
-----------
- did some work on the CLChatGUI-Client (see history)
- fixed a bug in Chatserver.OPList parsing causing
empty lines to match ANY user as an chatop.
- now no longer checks link access if a server link
is established on behalf of the local side.
- [UNLINK]-Message wasn't correctly distributed
across the server links causing clients to not
update their user lists.
- fixed a potential problem in SINQRESP-Message (for /NETINFO)
longer than 200 bytes
- added CLCHATSERVER_ADMIN environment variable, designating
a admin string which should contain the server operators
e-mail address, returned on /SERVER command and /NETINFO
inquiries.
Release 4.4
-----------
- did some work on the CLChatGUI-Client (see history)
- fixed nick changes not broadcasted correctly
- added private channels and the commands "/PRIVATE"
(ask/set/clear private mode), "/ALLOW" (list/allow
users) and "/DISALLOW".
- it's now possible to kill remote users.
- the standalone server now runs completely without
AmiTCP for BBS-only-usage.
- added IRC compatibility client CLChatIRCD to accept
standard IRC connections on TCP port 6667 (or whatever
you likes). It emulates most of the standard IRC
commands.
Release 4.5
-----------
- did some work on the CLChatGUI-Client (see history),
now supports DCC for IRC compatibility.
- fixed a severe bug in the chatserver causing sometimes
Exec messages to be send to non existant MsgPorts
- CLChatIRCD now behaves more like a "real" IRC server
sending faked version information on startup to fool
ircII into correct operation.
- CLChatIRCD now awaits a "JOIN :#MAIN" before sending
anything to the client in order to make braindamaged
designed IRC clients (ircII for example ;-) to not
choke on being magically forced into a channel.
- fixed various bugs with server message distribution.
- CLChatIRCD now properly converts CTCP VERSION and PING
to clchat format.
- various small internal cleanups & fixes.
- CLChatD, CLChatLink & CLChatIRCD now raise their
priority to 1 to avoid lagging due to the -1
priority normaly assigned by inetd for server
processes.
- CLChatLink no longer sends bogus link information
to the local server upon connect.
- CLChatD now has some kind of protection against
errneous IRC client connects; it sends the client
a hint to connect to the right port before terminating.
- updated installer script.
Release 4.6
-----------
- the CLChatIRCD now prints a message to MAIN after
joining to inform users that the client user is
not "really" on the channel.
- fixed a severe bug in CLChatIRCD causing the internal
user link in the exec Message used for communication
with the server to be trashed when someone /QUIT
while the user is still waiting to JOIN #MAIN.
- the CLChatIRCD now supports the WHO irc query
in limited form.
- the ChatBot now allows for autojoining a channel
straight after start.
- added /LINK & /UNLINK commands to the server for
creating links right out of the chat.
- now server disconnects give a reason.
- CLChatIRCD now properly converts [NICK]ámessages.
- fixed a bug in CLChatIRCD not properly terminating
a NAMES list.
- fixed a bug with server irregularly sending their
channel topics when a user left.
- now nick collisions are reported only from
the servers they occur on.
- added "/MSG ." (send to last msg's receipiant) and
"/MSG ," (send to last msg's sender) support.
Updated HELP output accordingly.
- cleaned up server login text; now outputs server
admin info after welcome.
- now, /NOTICE msgs are no more broadcasted to other
servers (this is intended behavior)
- the ANSI client now has a short help page
- did you some cleanup in the ANSI client
- the ANSI client now responds to VERSION, PING,
CLFT and DCC requests.
- the ANSI client now supports internal /PING
and /VERSION commands.
Release 4.7
-----------
- CLChatIRCD: fixed removal of first char on TOPIC.
- CLChatIRCD: cleaned up WHO output.
- Chatserver: SUSERS output changed to contain
userhost and realname (mainly for WHO support)
- Chatserver: cleaned up Server link protocol
to avoid user table loss during internal
list update.
- Chatserver: [ENTER] messages are now generated
locally so that users are informed when different
users are merged into the chat due to a server
connect.
(9) ARCnet
There is already a public Internet chat network based on
CLChat called the "ARCnet" (Amiga Relay Chat Network).
See the client documentation for up-to-date information
about this network and servers you can connect to.
WWW-Info:
http://ramiga.cts.com/CLChat/CLChat.html
(10) Updates
Updates are available from Aminet, or directly from
ftp://pluribus.wupper.de/CLChat
(11) Thanks must go to:
Roy Millican - for encouragement and running the first
public CLChat server on the InterNet ;-)
James Atwill, Ralf Deifel
- for their help during multi server testing
Jeremiah S. Junken
- for the CLChatGUI icon
Robert Reiswig
- for the Installer script
Matthias Mischler
- for his help with debugging the CLChatIRCD
with ircII