137 lines
4.1 KiB
Ruby
137 lines
4.1 KiB
Ruby
# frozen_string_literal: true
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require 'rubygems/package'
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require_relative 'base'
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module Mastodon::CLI
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class IpBlocks < Base
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option :severity, required: true, enum: %w(no_access sign_up_requires_approval sign_up_block), desc: 'Severity of the block'
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option :comment, aliases: [:c], desc: 'Optional comment'
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option :duration, aliases: [:d], type: :numeric, desc: 'Duration of the block in seconds'
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option :force, type: :boolean, aliases: [:f], desc: 'Overwrite existing blocks'
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desc 'add IP...', 'Add one or more IP blocks'
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long_desc <<-LONG_DESC
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Add one or more IP blocks. You can use CIDR syntax to
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block IP ranges. You must specify --severity of the block. All
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options will be copied for each IP block you create in one command.
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You can add a --comment. If an IP block already exists for one of
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the provided IPs, it will be skipped unless you use the --force
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option to overwrite it.
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LONG_DESC
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def add(*addresses)
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fail_with_message 'No IP(s) given' if addresses.empty?
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skipped = 0
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processed = 0
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failed = 0
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addresses.each do |address|
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unless valid_ip_address?(address)
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say("#{address} is invalid", :red)
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failed += 1
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next
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end
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ip_block = IpBlock.find_by(ip: address)
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if ip_block.present? && !options[:force]
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say("#{address} is already blocked", :yellow)
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skipped += 1
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next
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end
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ip_block ||= IpBlock.new(ip: address)
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ip_block.severity = options[:severity]
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ip_block.comment = options[:comment] if options[:comment].present?
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ip_block.expires_in = options[:duration]
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if ip_block.save
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processed += 1
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else
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say("#{address} could not be saved", :red)
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failed += 1
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end
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end
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say("Added #{processed}, skipped #{skipped}, failed #{failed}", color(processed, failed))
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end
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option :force, type: :boolean, aliases: [:f], desc: 'Remove blocks for ranges that cover given IP(s)'
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desc 'remove IP...', 'Remove one or more IP blocks'
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long_desc <<-LONG_DESC
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Remove one or more IP blocks. Normally, only exact matches are removed. If
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you want to ensure that all of the given IP addresses are unblocked, you
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can use --force which will also remove any blocks for IP ranges that would
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cover the given IP(s).
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LONG_DESC
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def remove(*addresses)
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fail_with_message 'No IP(s) given' if addresses.empty?
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processed = 0
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skipped = 0
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addresses.each do |address|
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unless valid_ip_address?(address)
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say("#{address} is invalid", :yellow)
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skipped += 1
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next
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end
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ip_blocks = if options[:force]
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IpBlock.where('ip >>= ?', address)
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else
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IpBlock.where('ip <<= ?', address)
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end
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if ip_blocks.empty?
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say("#{address} is not yet blocked", :yellow)
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skipped += 1
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next
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end
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ip_blocks.in_batches.destroy_all
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processed += 1
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end
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say("Removed #{processed}, skipped #{skipped}", color(processed, 0))
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end
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option :format, aliases: [:f], enum: %w(plain nginx), desc: 'Format of the output'
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desc 'export', 'Export blocked IPs'
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long_desc <<-LONG_DESC
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Export blocked IPs. Different formats are supported for usage with other
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tools. Only blocks with no_access severity are returned.
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LONG_DESC
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def export
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IpBlock.severity_no_access.find_each do |ip_block|
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case options[:format]
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when 'nginx'
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say "deny #{ip_block.ip}/#{ip_block.ip.prefix};"
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else
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say "#{ip_block.ip}/#{ip_block.ip.prefix}"
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end
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end
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end
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private
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def color(processed, failed)
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if !processed.zero? && failed.zero?
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:green
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elsif failed.zero?
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:yellow
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else
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:red
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end
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end
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def valid_ip_address?(ip_address)
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IPAddr.new(ip_address)
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true
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rescue IPAddr::InvalidAddressError
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false
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end
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end
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end
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