debian-mirror-gitlab/lib/banzai/filter/upload_link_filter.rb
2015-12-23 02:04:40 +05:30

48 lines
1.1 KiB
Ruby

require 'banzai'
require 'html/pipeline/filter'
require 'uri'
module Banzai
module Filter
# HTML filter that "fixes" relative upload links to files.
# Context options:
# :project (required) - Current project
#
class UploadLinkFilter < HTML::Pipeline::Filter
def call
doc.search('a').each do |el|
process_link_attr el.attribute('href')
end
doc.search('img').each do |el|
process_link_attr el.attribute('src')
end
doc
end
protected
def process_link_attr(html_attr)
return if html_attr.blank?
uri = html_attr.value
if uri.starts_with?("/uploads/")
html_attr.value = build_url(uri).to_s
end
end
def build_url(uri)
File.join(Gitlab.config.gitlab.url, context[:project].path_with_namespace, uri)
end
# Ensure that a :project key exists in context
#
# Note that while the key might exist, its value could be nil!
def validate
needs :project
end
end
end
end