discourse/app/models/embeddable_host.rb

89 lines
2.3 KiB
Ruby

# frozen_string_literal: true
class EmbeddableHost < ActiveRecord::Base
validate :host_must_be_valid
belongs_to :category
after_destroy :reset_embedding_settings
before_validation do
self.host.sub!(%r{\Ahttps?://}, "")
self.host.sub!(%r{/.*\z}, "")
end
# TODO(2021-07-23): Remove
self.ignored_columns = ["path_whitelist"]
def self.record_for_url(uri)
if uri.is_a?(String)
uri =
begin
URI(UrlHelper.normalized_encode(uri))
rescue URI::Error, Addressable::URI::InvalidURIError
end
end
return false unless uri.present?
host = uri.host
return false unless host.present?
host << ":#{uri.port}" if uri.port.present? && uri.port != 80 && uri.port != 443
path = uri.path
path << "?" << uri.query if uri.query.present?
where("lower(host) = ?", host).each do |eh|
return eh if eh.allowed_paths.blank?
path_regexp = Regexp.new(eh.allowed_paths)
return eh if path_regexp.match(path) || path_regexp.match(UrlHelper.unencode(path))
end
nil
end
def self.url_allowed?(url)
return false if url.nil?
# Work around IFRAME reload on WebKit where the referer will be set to the Forum URL
return true if url&.starts_with?(Discourse.base_url) && EmbeddableHost.exists?
uri =
begin
URI(UrlHelper.normalized_encode(url))
rescue URI::Error
end
uri.present? && record_for_url(uri).present?
end
private
def reset_embedding_settings
unless EmbeddableHost.exists?
Embedding.settings.each { |s| SiteSetting.set(s.to_s, SiteSetting.defaults[s]) }
end
end
def host_must_be_valid
if host !~ /\A[a-z0-9]+([\-\.]+{1}[a-z0-9]+)*\.[a-z]{2,24}(:[0-9]{1,5})?(\/.*)?\Z/i &&
host !~ /\A(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})(:[0-9]{1,5})?(\/.*)?\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
# == Schema Information
#
# Table name: embeddable_hosts
#
# id :integer not null, primary key
# host :string not null
# category_id :integer not null
# created_at :datetime not null
# updated_at :datetime not null
# class_name :string
# allowed_paths :string
#