diff options
Diffstat (limited to 'lib/gitlab/markdown/sanitization_filter.rb')
| -rw-r--r-- | lib/gitlab/markdown/sanitization_filter.rb | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/gitlab/markdown/sanitization_filter.rb b/lib/gitlab/markdown/sanitization_filter.rb index e368de7d848..ffb9dc33b64 100644 --- a/lib/gitlab/markdown/sanitization_filter.rb +++ b/lib/gitlab/markdown/sanitization_filter.rb @@ -48,6 +48,12 @@ module Gitlab # Allow span elements whitelist[:elements].push('span') + # Allow any protocol in `a` elements... + whitelist[:protocols].delete('a') + + # ...but then remove links with the `javascript` protocol + whitelist[:transformers].push(remove_javascript_links) + # Remove `rel` attribute from `a` elements whitelist[:transformers].push(remove_rel) @@ -57,6 +63,19 @@ module Gitlab whitelist end + def remove_javascript_links + lambda do |env| + node = env[:node] + + return unless node.name == 'a' + return unless node.has_attribute?('href') + + if node['href'].start_with?('javascript', ':javascript') + node.remove_attribute('href') + end + end + end + def remove_rel lambda do |env| if env[:node_name] == 'a' |