gitlab-org--gitlab-foss/lib/banzai/filter/label_reference_filter.rb

88 lines
2.7 KiB
Ruby

module Banzai
module Filter
# HTML filter that replaces label references with links.
class LabelReferenceFilter < AbstractReferenceFilter
self.reference_type = :label
def self.object_class
Label
end
def find_object(project, id)
find_labels(project).find(id)
end
def self.references_in(text, pattern = Label.reference_pattern)
unescape_html_entities(text).gsub(pattern) do |match|
yield match, $~[:label_id].to_i, $~[:label_name], $~[:project], $~[:namespace], $~
end
end
def references_in(text, pattern = Label.reference_pattern)
unescape_html_entities(text).gsub(pattern) do |match|
namespace, project = $~[:namespace], $~[:project]
project_path = full_project_path(namespace, project)
label = find_label(project_path, $~[:label_id], $~[:label_name])
if label
yield match, label.id, project, namespace, $~
else
match
end
end
end
def find_label(project_ref, label_id, label_name)
project = project_from_ref(project_ref)
return unless project
label_params = label_params(label_id, label_name)
find_labels(project).find_by(label_params)
end
def find_labels(project)
LabelsFinder.new(nil, project_id: project.id).execute(skip_authorization: true)
end
# Parameters to pass to `Label.find_by` based on the given arguments
#
# id - Integer ID to pass. If present, returns {id: id}
# name - String name to pass. If `id` is absent, finds by name without
# surrounding quotes.
#
# Returns a Hash.
def label_params(id, name)
if name
{ name: name.tr('"', '') }
else
{ id: id.to_i }
end
end
def url_for_object(label, project)
h = Gitlab::Routing.url_helpers
h.namespace_project_issues_url(project.namespace, project, label_name: label.name,
only_path: context[:only_path])
end
def object_link_text(object, matches)
project_path = full_project_path(matches[:namespace], matches[:project])
project_from_ref = project_from_ref_cached(project_path)
reference = project_from_ref.to_human_reference(project)
label_suffix = " <i>in #{reference}</i>" if reference.present?
LabelsHelper.render_colored_label(object, label_suffix)
end
def unescape_html_entities(text)
CGI.unescapeHTML(text.to_s)
end
def object_link_title(object)
# use title of wrapped element instead
nil
end
end
end
end