Sha256: 3ad07ce23bf0deeab4e06963cb9a7f3f533ac6eb05c34f419fa2ab52df41a178
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Contents
require 'uri'
module SCSSLint
# Checks the format of URLs for unnecessary protocols or domains.
class Linter::UrlFormat < Linter
include LinterRegistry
def visit_script_funcall(node)
return unless node.name == 'url'
if url_string?(node.args[0])
url = node.args[0].value.value.to_s
check_url(url, node)
end
yield
end
def visit_prop(node)
if url_literal?(node.value)
url = node.value.to_sass.sub(/^url\((.*)\)$/, '\\1')
check_url(url, node)
end
yield
end
private
def url_literal?(prop_value)
return unless prop_value.is_a?(Sass::Script::Tree::Literal)
return unless prop_value.value.is_a?(Sass::Script::Value::String)
return unless prop_value.value.type == :identifier
prop_value.to_sass.start_with?('url(')
end
def url_string?(arg)
return unless arg.is_a?(Sass::Script::Tree::Literal)
return unless arg.value.is_a?(Sass::Script::Value::String)
arg.value.type == :string
end
def check_url(url, node)
return if url.start_with?('data:')
uri = URI(url)
if uri.scheme || uri.host
add_lint(node, "URL `#{url}` should not contain protocol or domain")
end
rescue URI::Error => ex
add_lint(node, "Invalid URL `#{url}`: #{ex}")
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems