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panel/app/models/activity_pub/fediblock.rb

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# frozen_string_literal: true
require 'httparty'
# Listas de bloqueo y sus URLs de descarga
class ActivityPub
class Fediblock < ApplicationRecord
class Client
include ::HTTParty
# @param url [String]
# @return [HTTParty::Response]
def get(url)
self.class.get(url, parser: csv_parser)
end
# Procesa el CSV
#
# @return [Proc]
def csv_parser
@csv_parser ||=
begin
require 'csv'
proc do |body, _|
CSV.parse(body, headers: true)
end
end
end
end
class FediblockDownloadError < ::StandardError; end
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validates_presence_of :title, :url, :format
validates_inclusion_of :format, in: %w[mastodon fediblock none]
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HOSTNAME_HEADERS = {
'mastodon' => '#domain',
'fediblock' => 'domain'
}
def client
@client ||= Client.new
end
# Todas las instancias de este fediblock
def instances
ActivityPub::Instance.where(hostname: hostnames)
end
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# Descarga la lista y crea las instancias con el estado necesario
def process!
response = client.get(download_url)
raise FediblockDownloadError unless response.success?
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Fediblock.transaction do
csv = response.parsed_response
process_csv! csv
update(hostnames: csv.map { |r| r[hostname_header] })
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end
end
private
def hostname_header
HOSTNAME_HEADERS[format]
end
# Crea o encuentra instancias que ya existían y las bloquea
#
# @param csv [CSV::Table]
def process_csv!(csv)
csv.each do |row|
ActivityPub::Instance.find_or_create_by(hostname: row[hostname_header]).tap do |i|
i.block! if i.may_block?
end
end
end
end
end