periclase - CTCP scanner and banner

The main instance of periclase running on Libera Chat uses the nickname libera-connect to be more evidently an official piece of the network.

Periclase holds two sets of patterns; one set (triggers) tells periclase which clients should receive a CTCP VERSION request upon connect, the other set (rejects) tells periclase which CTCP VERSION responses should incite a KLINE.

Periclase will accept messages in private message (/query libera-connect trigger list) and in-channel (libera-connect: trigger list.)

Periclase triggers have 4 possible actions; in order of precedence:

• DISABLED (do nothing, skip these triggers but show them in trigger list)
• IGNORE (don't run CTCP VERSION and don't send an explanatory NOTICE)
• QUIETSCAN (run CTCP VERSION but don't send an explanatory NOTICE)
• SCAN (run CTCP VERSION and send an explanatory NOTICE)

trigger commands

trigger list

<jess> trigger list
-libera-connect- IGNORE:
-libera-connect-   1: /^[^@]+@2001:470:69fc:105:\S+ @\S+:/
-libera-connect- SCAN:
-libera-connect-   2: /^jess-test!/
-libera-connect- (2 total)

trigger add

the argument given to this is a /regex/ that is run against nickname!username@hostname realname

<jess> trigger add /^jess-test-2!/ scan
-libera-connect- added trigger 2
<jess> trigger add /^jess-test-2!/ floob
-libera-connect- unknown action 'FLOOB', expected DISABLED, IGNORE, QUIETSCAN, SCAN

trigger set

<jess> trigger set 2 scan
-libera-connect- trigger 2 is already SCAN
<jess> trigger set 2 disabled
-libera-connect- set trigger 2 to DISABLED

trigger get

<jess> trigger get 2
-libera-connect- /^jess-test-2!/
-libera-connect- action: SCAN
-libera-connect-  since: 2022-05-06T17:07:27.485085
-libera-connect-  adder: jess (jess!meow@libera/staff/cat/jess)

trigger remove

<jess> trigger remove 2
-libera-connect- removed trigger 2 (/^jess-test-2/)

Reject commands

reject list

<jess> reject list
-libera-connect- 1: /^matrix-appservice-irc 0.33.1 bridged via /
-libera-connect- (1 total)

reject add

<jess> reject add /^matrix-appservice-irc 0.33.2 bridged via / You are running an outdated and vulnerable version of matrix-appservice-irc.|oper reason here
-libera-connect- added reject 2

reject get

<jess> reject get 2
-libera-connect- /^matrix-appservice-irc 0.33.2 bridged via /
-libera-connect- reason: You are running an outdated and vulnerable version of matrix-appservice-irc.|oper reason here
-libera-connect-  since: 2022-05-06T17:07:52.070256
-libera-connect-  adder: jess (jess!meow@libera/staff/cat/jess)

reject remove

<jess> reject remove 2
-libera-connect- removed reject 2 (/^matrix-appservice-irc 0.33.2 bridged via /)