Add cache-edit-mapping and cache-add-redis-store for Moodle 405

[owngr]

Related issue: #500

I'm quite newby with PHP so it might not be the best solution.

cache-edit-mapping

• Mostly just renaming the class following this document: https://github.com/moodle/moodle/blob/main/cache/UPGRADING.md

• I had a strange problem where the Moosh login function failed with the following message, if redis was already used as a sessionhandler:

[10-Oct-2024 16:28:36 Europe/Berlin] PHP Warning:  session_set_save_handler(): Session save handler cannot be changed when a session is active in /var/www/html/lib/classes/session/redis.php on line 235

Warning: session_set_save_handler(): Session save handler cannot be changed when a session is active in /var/www/html/lib/classes/session/redis.php on line 235
[10-Oct-2024 16:28:36 Europe/Berlin] Default exception handler: Setting up of redis session failed. Please notify the server administrator. Debug:
Error code: redissessionhandlerproblem
* line 237 of /lib/classes/session/redis.php: core\session\exception thrown
* line 750 of /lib/classes/session/redis.php: call to core\session\redis->init()
* line 688 of /lib/classes/session/redis.php: call to core\session\redis->init_redis_if_required()
* line 996 of /lib/classes/session/manager.php: call to core\session\redis->destroy()
* line 636 of /lib/classes/session/manager.php: call to core\session\manager::destroy()
* line 4078 of /lib/moodlelib.php: call to core\session\manager::login_user()
* line 303 of /opt/moosh/moosh.php: call to complete_user_login()

!!! Setting up of redis session failed. Please notify the server administrator. !!!

Therefore I added the following code in order to avoid a login, I couldn't find a better solution:

public function bootstrapLevel() {
  return self::$BOOTSTRAP_FULL_NO_ADMIN_CHECK;
}

cache-add-redis-store

• renamed the classes to fit Moodle 405
• added the following new params disabled by default
  • encryption
  • cafile
  • encryption
• I had the same issue with the login as cache-edit-mapping and therefore disabled the login

Use 3 digit versions number

I started by naming the folder Moodle45 but still received errors because moosh was using Moodle310 cache-add-redis-store.

Moodle started using 3 digits number version for branch in version.php with Moodle 310.

Therefore, when I tried to use the 45 version it would pickup Moodle 310 as 310 > 45 as you can see here:

 /opt/moosh/moosh.php -v --no-user-check cache-add-redis-store --key-prefix="cache_" "redis" "$MAAS_REDIS_HOST"
Top Moodle dir: /var/www/html
Current working dir: /var/www/html
Relative Moodle dir:
Processing command option 'help''
Processing command option 'password''
Processing command option 'key-prefix''
'key-prefix' option is set on the command line to 'cache_'
Moodle version detected: 405
Command: add-redis-store (cache)
Options:
	help (): ''
	key-prefix (): 'cache_'
Arguments:
	redis redis-master
[10-Oct-2024 12:04:11 Europe/Berlin] PHP Warning:  require_once(/var/www/html/cache/locallib.php): Failed to open stream: No such file or directory in /opt/moosh/Moosh/Command/Moodle310/Cache/CacheAddRedisStore.php on line 37

Warning: require_once(/var/www/html/cache/locallib.php): Failed to open stream: No such file or directory in /opt/moosh/Moosh/Command/Moodle310/Cache/CacheAddRedisStore.php on line 37

The only way to make moosh pickup the right version was to refractor the whole numbering to start using 3 digit.