包简介

Ban IP addresses from your forum

README 文档

README

A Flarum extension that lets moderators ban IP addresses, blocking the people behind them from logging in or registering.

Unlike Flarum's built-in user suspension — which only stops a known account — banning an IP shuts the door on the address itself. This is useful against ban-evaders who keep creating new accounts, and against spammers and bots registering from the same network.

Features

Ban an individual IP address directly from the admin panel, with an optional reason.
Ban a user by their IP(s) straight from a post or the user's profile. You can choose to ban only the IP of the post in question, or every IP the user has ever posted from.
Catch shared accounts. Before banning, the extension shows you which other accounts have posted from the same IP address(es) so you know exactly who a ban will affect.
Blocks login and registration from banned IPs. Banned users are also signed out the moment they make a request from a banned address.
Won't lock out staff. Users (and admins) who hold the ban permission can never be IP-banned, and a banned IP never blocks a non-banned user who simply happens to share it.
"Banned" badge displayed next to affected users so moderators can spot them at a glance.
Manage existing bans from the admin page: review the creator, associated user, address, reason and date, edit the reason, or remove a ban.
GDPR aware. When FoF GDPR is enabled, banned-IP records are included in data exports and decoupled from users on erasure (the IP itself stays banned).

Permissions

The extension adds two permissions, configurable per group in the admin panel:

Permission	Description
Ban IP addresses (`fof.ban-ips.banIP`)	Create, edit and remove IP bans, and ban/unban users by IP. A moderator cannot edit a ban they created themselves, nor ban another user who also holds this permission.
View banned IP address list (`fof.ban-ips.viewBannedIPList`)	View the list of banned IPs in the admin panel and the banned IPs associated with a user.

How it works

A "ban" is a record of an IP address. On every forum request the extension checks the visitor's address:

Requests to register or log in from a banned IP are rejected — unless the account being logged into is not itself associated with a banned IP.
An authenticated user making a request from a banned IP is logged out.

When you ban a user, the extension looks up every IP address they have posted from and bans each one, so a single action covers all of the user's known addresses.