gitlab-org--gitlab-foss/lib/gitlab/dependency_linker/base_linker.rb

112 lines
2.8 KiB
Ruby

# frozen_string_literal: true
module Gitlab
module DependencyLinker
class BaseLinker
URL_REGEX = %r{https?://[^'" ]+}.freeze
GIT_INVALID_URL_REGEX = /^git\+#{URL_REGEX}/.freeze
REPO_REGEX = %r{[^/'" ]+/[^/'" ]+}.freeze
VALID_LINK_ATTRIBUTES = %w[href rel target].freeze
include ActionView::Helpers::SanitizeHelper
class_attribute :file_type
def self.support?(blob_name)
Gitlab::FileDetector.type_of(blob_name) == file_type
end
def self.link(*args)
new(*args).link
end
attr_accessor :plain_text, :highlighted_text
def initialize(plain_text, highlighted_text)
@plain_text = plain_text
@highlighted_text = highlighted_text
end
def link
link_dependencies
highlighted_lines.join.html_safe
end
def external_url(name, external_ref)
return if external_ref =~ GIT_INVALID_URL_REGEX
case external_ref
when /\A#{URL_REGEX}\z/
external_ref
when /\A#{REPO_REGEX}\z/
github_url(external_ref)
else
package_url(name)
end
end
private
def package_url(_name)
raise NotImplementedError
end
def link_dependencies
raise NotImplementedError
end
def license_url(name)
Licensee::License.find(name)&.url
end
def github_url(name)
"https://github.com/#{name}"
end
def link_tag(name, url)
sanitize(
%{<a href="#{ERB::Util.html_escape_once(url)}" rel="nofollow noreferrer noopener" target="_blank">#{ERB::Util.html_escape_once(name)}</a>},
attributes: VALID_LINK_ATTRIBUTES
)
end
# Links package names based on regex.
#
# Example:
# link_regex(/(github:|:github =>)\s*['"](?<name>[^'"]+)['"]/)
# # Will link `user/repo` in `github: "user/repo"` or `:github => "user/repo"`
def link_regex(regex, &url_proc)
highlighted_lines.map!.with_index do |rich_line, i|
marker = StringRegexMarker.new((plain_lines[i].chomp! || plain_lines[i]), rich_line.html_safe)
marker.mark(regex, group: :name) do |text, left:, right:, mode:|
url = yield(text)
url ? link_tag(text, url) : text
end
end
end
def plain_lines
@plain_lines ||= plain_text.lines
end
def highlighted_lines
@highlighted_lines ||= highlighted_text.lines
end
def regexp_for_value(value, default: /[^'" ]+/)
case value
when Array
Regexp.union(value.map { |v| regexp_for_value(v, default: default) })
when String
Regexp.escape(value)
when Regexp
value
else
default
end
end
end
end
end