70 lines
1.8 KiB
Ruby
70 lines
1.8 KiB
Ruby
require_dependency 'url_helper'
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class EmbeddableHost < ActiveRecord::Base
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validate :host_must_be_valid
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belongs_to :category
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before_validation do
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self.host.sub!(/^https?:\/\//, '')
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self.host.sub!(/\/.*$/, '')
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end
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def self.record_for_url(uri)
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if uri.is_a?(String)
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uri = URI(UrlHelper.escape_uri(uri)) rescue nil
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end
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return false unless uri.present?
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host = uri.host
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return false unless host.present?
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if uri.port.present? && uri.port != 80 && uri.port != 443
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host << ":#{uri.port}"
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end
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path = uri.path
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path << "?" << uri.query if uri.query.present?
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where("lower(host) = ?", host).each do |eh|
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return eh if eh.path_whitelist.blank?
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path_regexp = Regexp.new(eh.path_whitelist)
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return eh if path_regexp.match(path) || path_regexp.match(URI.unescape(path))
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end
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nil
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end
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def self.url_allowed?(url)
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# Work around IFRAME reload on WebKit where the referer will be set to the Forum URL
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return true if url&.starts_with?(Discourse.base_url)
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uri = URI(UrlHelper.escape_uri(url)) rescue nil
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uri.present? && record_for_url(uri).present?
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end
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private
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def host_must_be_valid
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if host !~ /\A[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,10}(:[0-9]{1,5})?(\/.*)?\Z/i &&
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host !~ /\A(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})(:[0-9]{1,5})?(\/.*)?\Z/ &&
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host !~ /\A([a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.)?localhost(\:[0-9]{1,5})?(\/.*)?\Z/i
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errors.add(:host, I18n.t('errors.messages.invalid'))
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end
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end
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end
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# == Schema Information
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#
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# Table name: embeddable_hosts
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#
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# id :integer not null, primary key
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# host :string(255) not null
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# category_id :integer not null
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# created_at :datetime
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# updated_at :datetime
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# path_whitelist :string
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# class_name :string
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#
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