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89 lines
2.2 KiB
89 lines
2.2 KiB
# frozen_string_literal: true |
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# == Schema Information |
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# |
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# Table name: email_domain_blocks |
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# |
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# id :bigint(8) not null, primary key |
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# domain :string default(""), not null |
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# created_at :datetime not null |
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# updated_at :datetime not null |
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# parent_id :bigint(8) |
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# |
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class EmailDomainBlock < ApplicationRecord |
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self.ignored_columns = %w( |
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ips |
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last_refresh_at |
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) |
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include DomainNormalizable |
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include Paginable |
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belongs_to :parent, class_name: 'EmailDomainBlock', optional: true |
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has_many :children, class_name: 'EmailDomainBlock', foreign_key: :parent_id, inverse_of: :parent, dependent: :destroy |
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validates :domain, presence: true, uniqueness: true, domain: true |
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# Used for adding multiple blocks at once |
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attr_accessor :other_domains |
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def to_log_human_identifier |
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domain |
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end |
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def history |
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@history ||= Trends::History.new('email_domain_blocks', id) |
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end |
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class Matcher |
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def initialize(domain_or_domains, attempt_ip: nil) |
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@uris = extract_uris(domain_or_domains) |
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@attempt_ip = attempt_ip |
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end |
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def match? |
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blocking? || invalid_uri? |
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end |
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private |
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def invalid_uri? |
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@uris.any?(&:nil?) |
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end |
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def blocking? |
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blocks = EmailDomainBlock.where(domain: domains_with_variants).order(Arel.sql('char_length(domain) desc')) |
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blocks.each { |block| block.history.add(@attempt_ip) } if @attempt_ip.present? |
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blocks.any? |
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end |
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def domains_with_variants |
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@uris.flat_map do |uri| |
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next if uri.nil? |
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segments = uri.normalized_host.split('.') |
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segments.map.with_index { |_, i| segments[i..-1].join('.') } |
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end |
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end |
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def extract_uris(domain_or_domains) |
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Array(domain_or_domains).map do |str| |
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domain = if str.include?('@') |
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str.split('@', 2).last |
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else |
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str |
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end |
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Addressable::URI.new.tap { |u| u.host = domain.strip } if domain.present? |
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rescue Addressable::URI::InvalidURIError, IDN::Idna::IdnaError |
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nil |
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end |
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end |
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end |
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def self.block?(domain_or_domains, attempt_ip: nil) |
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Matcher.new(domain_or_domains, attempt_ip: attempt_ip).match? |
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end |
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end
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