discourse/app/models/embeddable_host.rb

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class EmbeddableHost < ActiveRecord::Base
validate :host_must_be_valid
belongs_to :category
before_validation do
self.host.sub!(/^https?:\/\//, '')
self.host.sub!(/\/.*$/, '')
end
def self.record_for_url(uri)
if uri.is_a?(String)
uri = URI(uri) rescue nil
end
return false unless uri.present?
host = uri.host
return false unless host.present?
where("lower(host) = ?", host).first
end
def self.url_allowed?(url)
uri = URI(url) rescue nil
return false unless uri.present?
path = uri.path
path << "?" << uri.query if uri.query.present?
host = record_for_url(uri)
return host.present? &&
(host.path_whitelist.blank? || !Regexp.new(host.path_whitelist).match(path).nil?)
end
private
def host_must_be_valid
if host !~ /\A[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,7}(:[0-9]{1,5})?(\/.*)?\Z/i &&
host !~ /\A(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\Z/ &&
host !~ /\A([a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.)?localhost(\:[0-9]{1,5})?(\/.*)?\Z/i
errors.add(:host, I18n.t('errors.messages.invalid'))
end
end
end
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# == Schema Information
#
# Table name: embeddable_hosts
#
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# id :integer not null, primary key
# host :string not null
# category_id :integer not null
# created_at :datetime
# updated_at :datetime
# path_whitelist :string
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#