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# frozen_string_literal: true
class OpenGraphElement < ::HTMLProofer::Element
attr_reader :src
def initialize(obj, check, logger)
super(obj, check, logger)
# Fake up src from the content attribute
instance_variable_set('@src', @content)
@src.insert 0, 'http:' if %r{^//}.match?(@src)
end
end
class OpenGraphCheck < ::HTMLProofer::Check
def missing_src?
!@opengraph.src
end
def empty_src?
blank?(@opengraph.src)
end
def run
@html.css('meta[property="og:url"], meta[property="og:image"]').each do |m|
@opengraph = OpenGraphElement.new(m, self, @logger)
next if @opengraph.ignore?
# does the opengraph exist?
if missing_src?
add_issue('open graph has no content attribute', line: m.line, content: m.content)
elsif empty_src?
add_issue('open graph content attribute is empty', line: m.line, content: m.content)
elsif !@opengraph.valid?
add_issue("#{@opengraph.src} is an invalid URL", line: m.line)
elsif @opengraph.remote?
add_to_external_urls(@opengraph.url)
else
add_issue("internal open graph #{@opengraph.url} does not exist", line: m.line, content: m.content) unless @opengraph.exists?
end
end
external_urls
end
end
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