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56 lines
4.7 KiB
Markdown
56 lines
4.7 KiB
Markdown
# Anti-Abuse
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PBot can monitor channels for abusive behavior and take appropriate action.
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<!-- md-toc-begin -->
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* [Flood control](#flood-control)
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* [Message flood](#message-flood)
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* [Join flood](#join-flood)
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* [Enter key abuse](#enter-key-abuse)
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* [Nick flood](#nick-flood)
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* [Anti-away/Nick-control](#anti-awaynick-control)
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* [Anti-auto-rejoin control](#anti-auto-rejoin-control)
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* [Opping/Deopping](#oppingdeopping)
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<!-- md-toc-end -->
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## Flood control
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PBot can monitor the channel for excessive rapid traffic originating from an individual and automatically ban the offender for a certain length of time.
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### Message flood
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If four (4) or more messages are sent within five (5) seconds, the flood control is triggered. The offender will be muted for 30 seconds for the first offense. Each additional offense will result in the offender being muted for a much longer period. For example, the first offense will result in 30 seconds, the 2nd offense will be 5 minutes, the 3rd will be 1 hour, and so on. The offense counter is decremented once every 24 hours.
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The offender will be sent the following private message: "You have been muted due to flooding. Please use a web paste service such as http://ideone.com for lengthy pastes. You will be allowed to speak again in $timeout."
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### Join flood
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If four (4) or more JOINs are observed within thirty (30) minutes *without any messages in between joins*, the offender will be forwarded to another channel for a limited time: 2^(number_of_offenses + 2) hours.
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In addition to private instructions from PBot, this channel will have a /topic and ChanServ on-join message with instructions explaining to the offender how to remove the forwarding. The instructions are to message PBot with: `unbanme`.
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Any messages sent to the public channel by the user at any time will reset their JOIN counter back to zero. The unbanme command can only be used for the first two offenses -- the offense counter is decremented once every 24 hours.
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The offender will be sent the following private message: "You have been banned from $channel due to join flooding. If your connection issues have been resolved, or this was an accident, you may request an unban at any time by responding to this message with: `unbanme`, otherwise you will be automatically unbanned in $timeout."
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### Enter key abuse
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If four (4) consecutive messages are sent with ten (10) seconds or less between individual messages and without another person speaking, an enter-key-abuse counter is incremented. This counter will then continue to be incremented every two (2) consecutive messages with ten (10) seconds or less in between until another person speaks or more than ten (10) seconds have elapsed, whereupon it returns to requiring four (4) consecutive messages. When this counter reaches three (3) or greater, the offender will be muted using the same timeout rules as message flooding. This counter is automatically decremented once per hour.
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The offender will be sent the following private message: "You have been muted due to abusing the enter key. Please do not split your sentences over multiple messages. You will be allowed to speak again in $timeout."
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### Nick flood
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If four (4) or more nick-changes are observed within thirty (30) minutes, the nick-change flood control is triggered. The offender will be muted for 15 minutes for the first offense. Each additional offense will result in the offender being muted for a much longer period. The offense counter is decremented once every 24 hours.
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The offender will be sent the following private message: "You have been temporarily banned due to nick-change flooding. You will be unbanned in $timeout."
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## Anti-away/Nick-control
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PBot can detect nick-changes to undesirable nicks such as those ending with |away, as well as undesirable ACTIONs such as /me is away.
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When such a case is detected, PBot will kick the offender with a link to http://sackheads.org/~bnaylor/spew/away_msgs.html in the kick message.
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## Anti-auto-rejoin control
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PBot can detect if someone immediately auto-rejoins after having been kicked.
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When such a case is detected, PBot will kickban the offender (with a kick message of "$timeout ban for auto-rejoining after kick") for 5 minutes for the first offense. Each additional offense will result in the offender being banned for a much longer period. The offense counter is decremented once every 24 hours.
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## Opping/Deopping
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ChanServ can op and deop PBot as necessary, unless the channel `permop` metadata is set to a true value. PBot will wait until about 5 minutes have elapsed before requesting a deop from ChanServ. This timeout can be controlled via the `general.deop_timeout` registry value, which can be overriden on a per-channel basis.
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