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142571bba0
* `rescue nil` is a really bad pattern to use in our code base. We should rescue errors that we expect the code to throw and not rescue everything because we're unsure of what errors the code would throw. This would reduce the amount of pain we face when debugging why something isn't working as expexted. I've been bitten countless of times by errors being swallowed as a result during debugging sessions.
77 lines
1.9 KiB
Ruby
77 lines
1.9 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 = begin
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URI(UrlHelper.escape_uri(uri))
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rescue URI::InvalidURIError
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end
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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 = begin
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URI(UrlHelper.escape_uri(url))
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rescue URI::InvalidURIError
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end
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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 not null
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# category_id :integer not null
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# created_at :datetime not null
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# updated_at :datetime not null
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# path_whitelist :string
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# class_name :string
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#
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