Forum OpenACS Development: dotlrn chat

"could not reach chat server"

Do I need to install any chat server???

any idea about does it happend??

carlos

"could not reach chat server"

That's weird and i have no clue what's going on! :)

iuri

We in the University of Valencia are using the packages chat, dotlrn-chat and chat-portlet, you could send us the code of the chat server written in tcl

Thank you

I replace a java chat server with Gustaf Neumann xowiki ajax chat (now requires xotcl-core). This is a simple hack of xowiki code, we made an exercise to test the ajax scripts but it can be useful

look at the modified version in the file-storage. features:
-two user interfaces: ajax cliet with auto-refresh and simple HTML version to work on any browsers;
-log messages on db to make transcriptions;
-.lrn integration adding applets and portlets to clubs/class portals.

Comments, suggestions?

Thank you for the interest and sorry for the bug. I leave old archives with JAVA SERVER references in this release. After make a fresh install using dotlrn 2.2 tarball to test i can reporduce your error and clean some code to remove this references.

I sent new version on same folder to replace to older.

After intall chat applet and xotcl-core i receive this error message when I enter in a room

::template::login: unable to dispatch method 'chat_id' during '::template::login chat_id'
::template::login ::xotcl::Object->configure
::chat::Chat ::xotcl::Class->create
::chat::Chat ::xotcl::Class->unknown
invoked from within

To solve this, just add this lines to /packages/acs-bootstrap-installer/bootstrap.tcl

...
# LARS: Load packages/acs-automated-testing/tcl/aa-test-procs.tcl
ns_log Notice "Loading acs-automated-testing specially so other packages can define tests..."
apm_bootstrap_load_libraries -procs acs-automated-testing

+# GN: Should be loaded before user packages such they can use
+ # the xotcl infrastructure
+ if {[file isdirectory $root_directory/packages/xotcl-core]} {
+ apm_bootstrap_load_libraries -procs xotcl-core
+ }

Thanks for the fix. I downloaded the new version, with it the connexion error disappear but I still had the "file not found". I edited tcl/chat-ajax-procs.tcl and remove the leading path:

--- chat-ajax-procs.tcl.OLD 2006-03-03 20:58:23.000000000 +0100
+++ chat-ajax-procs.tcl 2006-03-03 20:59:54.000000000 +0100
@@ -124,10 +124,10 @@
set file [open [acs_root_dir]/$path]; set js [read $file]; close $file
set location [util_current_location]
set path [site_node::get_url_from_object_id -object_id $package_id]
- set login_url $path/ajax/chat?m=login&$context
- set send_url $path/ajax/chat?m=add_msg&$context&msg=
- set get_update "chatSendCmd(\"$path/ajax/chat?m=get_new&$context\",chatReceiver)"
- set get_all "chatSendCmd(\"$path/ajax/chat?m=get_all&$context\",chatReceiver)"
+ set login_url ajax/chat?m=login&$context
+ set send_url ajax/chat?m=add_msg&$context&msg=
+ set get_update "chatSendCmd(\"ajax/chat?m=get_new&$context\",chatReceiver)"
+ set get_all "chatSendCmd(\"ajax/chat?m=get_all&$context\",chatReceiver)"
return "\
<script type='text/javascript' language='javascript'>
$js

and it works fine now.

Ben, send me a login to your site to see the features and help me to make a javascript intrface more simple and functional.

Rodrigo

1. is this XOTcl solution available for oacs 5.1.4 ?
A: Yes, XOTcl is available for oacs 5.1.4. Chat package requires xotcl-core 0.33 and on my tests work on this oacs version.

2. Does it display chat messages instantly, or does it refresh the page like html chat?
A: Yes, the AJAX interface instantly refresh the messages on clients browsers.

3. Are there good docs out there to install xotcl?
Gustaf Neumann has posted a link to documentation http://media.wu-wien.ac.at/download/README-xotcl-core.

To make chat package work without dotlrn, you need comment some lines on /chat/www/room-new-2.tcl

#set comm_id [dotlrn_community::get_community_id]
#if {$comm_id ne ""} {
# chat_user_grant $room_id [dotlrn_community::get_community_id]
#} else {
#-2 Registered Users
#chat_user_grant $room_id -2
#0 Unregistered Visitor
#chat_user_grant $room_id 0
#-1 The Public
chat_user_grant $room_id -1
#}

the documentation and fix for UTF-8 characters. I removed the encode part of ajax-chat to resolve this but it lost the HTML tags in messages.

In next release i will place the xowiki dependence to use the ajax-chat from there and add a verification for dotlrn installed package.

However, this is not likely to be the problem you are facing, the error message does not seem to be version dependent. "::xotcl::Class" is a built-in command xotcl, so in your installation xotcl is not loaded. This points to a problem in step 1 from the above installation instructions.

Thanks.

1. Link highlighting
2. Chatter lists (currently only updated on room entry).
3. Number of people in each room.

Gustaf: Can you help with achieving real time user lists with ajax?

Ryan

We are making a java chat (the Arsdigita Java client) vs. AJAX backed chat decision for .LRN 2.2 at the .LRN meeting in the morning and user lists was one of the only things missing.

Could you come to the .LRN meeting in the morning on IRC?

https://openacs.org/irc/

Next Meeting is at 22:00 hours (in Vienna)

http://www.timeanddate.com/worldclock/fixedtime.html?year=2006&month=3&day=14&hour=21&min=0&sec=0

We also need to get you to commit changes to the code base rather than uploading files (file storage is suboptimal if we want to work on this together). We can discuss this in the morning as well.

Carl

The current status is that i have merged the changes from the ajax version with the version that was in cvs.

.LRN meeting is today, tuesday march 14th at 22h (Vienna time).

I hope you'll be able to join so we can discuss all this tonight.

Let's keep it simple for now and let people that want to modify public record use sql.

End users that want to edit the protocol can use their computer's clipboard and publish it somewhere else in the system.