discourse/lib/url_helper.rb

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module UrlHelper
def is_local(url)
url.present? && (
Discourse.store.has_been_uploaded?(url) ||
!!(url =~ /^\/assets\//) ||
!!(url =~ /^\/plugins\//) ||
url.start_with?(Discourse.asset_host || Discourse.base_url_no_prefix)
)
end
def absolute(url, cdn = Discourse.asset_host)
url =~ /^\/[^\/]/ ? (cdn || Discourse.base_url_no_prefix) + url : url
end
def absolute_without_cdn(url)
absolute(url, nil)
end
def schemaless(url)
url.gsub(/^https?:/, "")
end
end