gitlab-org--gitlab-foss/lib/gitlab/github_import/markdown_text.rb

88 lines
2.7 KiB
Ruby

# frozen_string_literal: true
# This class includes overriding Kernel#format method
# what makes impossible to use it here
# rubocop:disable Style/FormatString
module Gitlab
module GithubImport
class MarkdownText
include Gitlab::EncodingHelper
# On github.com we have base url for docs and CDN url for media.
# On github EE as far as we can know there is no CDN urls and media is placed on base url.
GITHUB_MEDIA_CDN = 'https://user-images.githubusercontent.com'
ISSUE_REF_MATCHER = '%{github_url}/%{import_source}/issues'
PULL_REF_MATCHER = '%{github_url}/%{import_source}/pull'
class << self
def format(*args)
new(*args).to_s
end
# Links like `https://domain.github.com/<namespace>/<project>/pull/<iid>` needs to be converted
def convert_ref_links(text, project)
matcher_options = { github_url: github_url, import_source: project.import_source }
issue_ref_matcher = ISSUE_REF_MATCHER % matcher_options
pull_ref_matcher = PULL_REF_MATCHER % matcher_options
url_helpers = Rails.application.routes.url_helpers
text.gsub(issue_ref_matcher, url_helpers.project_issues_url(project))
.gsub(pull_ref_matcher, url_helpers.project_merge_requests_url(project))
end
# Returns github domain without slash in the end
def github_url
oauth_config = Gitlab::Auth::OAuth::Provider.config_for('github') || {}
url = oauth_config['url'].presence || 'https://github.com'
url = url.chop if url.end_with?('/')
url
end
def fetch_attachments(text)
attachments = []
doc = CommonMarker.render_doc(text)
doc.walk do |node|
attachment = extract_attachment(node)
attachments << attachment if attachment
end
attachments
end
private
def extract_attachment(node)
::Gitlab::GithubImport::Markdown::Attachment.from_markdown(node)
end
end
# text - The Markdown text as a String.
# author - An instance of `Gitlab::GithubImport::Representation::User`
# exists - Boolean that indicates the user exists in the GitLab database.
def initialize(text, author, exists = false)
@text = text.to_s
@author = author
@exists = exists
end
def to_s
# Gitlab::EncodingHelper#clean remove `null` chars from the string
clean(format)
end
private
attr_reader :text, :author, :exists
def format
if author&.login.present? && !exists
"*Created by: #{author.login}*\n\n#{text}"
else
text
end
end
end
end
end
# rubocop:enable Style/FormatString