Tip of the day: Channel mode +f is a powerful anti-flood feature. It is also slightly complex. Enable it in your most important channels, and consider setting a default in set::modes-on-join.
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Crule
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Since UnrealIRCd 6.1.2 we support spamfilter::rule, security-group::rule and mask::rule. They allow you to filter in a C like if-style, eg: rule "reputation()>20";
.
Syntax
- You can call functions which may have 0, 1 or more arguments. Eg
reputation()
- Supported comparison operators are:
xx>yy
,xx<yy
andx==y
- You can use
&&
(AND) and||
(OR) expressions to combine multiple checks - You can use
(
and)
to group items - You can use
!
to represent negation, eg!has_user_mode('x')
Functions
The following functions are supported:
online_time()
: number of seconds the user is onlinereputation()
: the Reputation score of the usertag('TAGNAME')
: read the value of a tag set on the user with name TAGNAME. Tags are set by set in Actions (e.g. by spamfilter).cap_version()
: returns the CAP protocol used by the client, such as 300.cap_set('capname')
: returns true if the the client has requested thecapname
capability via CAP REQ.is_away()
: returns true if the client is currently away. Requires UnrealIRCd 6.1.5+has_user_mode('x')
: returns true if all the specified user modes are set on the client. Requires UnrealIRCd 6.1.5+has_channel_mode('x')
: for a spamfilter, the destination channel for a message: return true if this channel contains all the specified channel modes. Requires UnrealIRCd 6.1.5+destination('#channel')
: for a spamfilter, allows you to check the destination of the message (which can be a channel or a nick), wildcards are supported.inchannel('#channel')
: returns true if user is a member of this channel. It is IMPORTANT not to confuse this with destination() in spamfilters! Optionally channel member flags are supported, eginchannel('@#has_ops_here')
.
Examples
Simple comparisson
This rule will match if the Reputation score of the user is more than 20:
rule "reputation()>20";
And/Or
You can combine things with an AND operator and OR, and group them:
rule "!inchannel('#main') && (online_time()<180 || reputation()<50)";
This rule will match when:
- User is not in the channel #main, AND
- Either the online time is less than 180 seconds OR the Reputation score is less than 50