discourse/lib/onebox/engine/image_onebox.rb

31 lines
849 B
Ruby

# frozen_string_literal: true
module Onebox
module Engine
class ImageOnebox
include Engine
matches_content_type(/^image\/(png|jpg|jpeg|gif|bmp|tif|tiff)$/)
matches_regexp(/^(https?:)?\/\/.+\.(png|jpg|jpeg|gif|bmp|tif|tiff)(\?.*)?$/i)
def always_https?
AllowlistedGenericOnebox.host_matches(uri, AllowlistedGenericOnebox.https_hosts)
end
def to_html
# Fix Dropbox image links
if @url[/^https:\/\/www.dropbox.com\/s\//]
@url.sub!("https://www.dropbox.com", "https://dl.dropboxusercontent.com")
end
escaped_url = ::Onebox::Helpers.normalize_url_for_output(@url)
<<-HTML
<a href="#{escaped_url}" target="_blank" rel="noopener" class="onebox">
<img src="#{escaped_url}">
</a>
HTML
end
end
end
end