For this to be done properly, a new function to send the message
and trigger the event has been created. Following that a
data generator for chat, and some unit tests.
List of changes:
* New OOP API using PHP namespace \core\session\.
* All handlers now update the sessions table consistently.
* Experimental DB session support in Oracle.
* Full support for session file handler (filesystem locking required).
* New option for alternative session directory.
* Official memcached session handler support.
* Workaround for memcached version with non-functional gc.
* Improved security - forced session id regeneration.
* Improved compatibility with recent PHP releases.
* Fixed borked CSS during install in debug mode.
* Switched to file based sessions in new installs.
* DB session setting disappears if DB does not support sessions.
* DB session setting disappears if session handler specified in config.php.
* Fast purging of sessions used in request only.
* No legacy distinction - file, database and memcached support the same functionality.
* Session handler name included in performance info.
* Fixed user_loggedin and user_loggedout event triggering.
* Other minor bugfixing and improvements.
* Fixed database session segfault if MUC disposed before $DB.
Limitations:
* Session access time is now updated right after session start.
* Support for $CFG->sessionlockloggedinonly was removed.
* First request does not update userid in sessions table.
* The timeouts may break badly if server hosting forces PHP.ini session settings.
* The session GC is a lot slower, we do not rely on external session timeouts.
* There cannot be any hooks triggered at the session write time.
* File and memcached handlers do not support session lock acquire timeouts.
* Some low level PHP session functions can not be used directly in Moodle code.
- new gui_basic that can be used as fallback or accessible option to gui_header_js - it is not compatible with chat daemon
- todo: CSS styling, beeping, JS fallback code in view.php and noframes fallback in gui_header_js
- minor changes in messaging language strings
- minor coding style improvements
Some users reported that mod/chat was silently dropping some messages. The
user's browser may not be able to keep up with the rate at which he submits
chat messages. This update keeps things sane.
Merged from MOODLE_16_STABLE
Author: Donal McMullan <donal@catalyst.net.nz>
+ we are now more conservative in the fields it asks from the db
+ also more conservative with upates to chat_users
+ messages are now added via POST requests instead of GET
