77 lines
2.2 KiB
Ruby
77 lines
2.2 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
module Banzai
|
|
module Filter
|
|
# HTML filter that inserts a placeholder element for each
|
|
# reference to a grafana dashboard.
|
|
class InlineGrafanaMetricsFilter < Banzai::Filter::InlineEmbedsFilter
|
|
# Placeholder element for the frontend to use as an
|
|
# injection point for charts.
|
|
def create_element(params)
|
|
begin_loading_dashboard(params[:url])
|
|
|
|
doc.document.create_element(
|
|
'div',
|
|
class: 'js-render-metrics',
|
|
'data-dashboard-url': metrics_dashboard_url(params)
|
|
)
|
|
end
|
|
|
|
def embed_params(node)
|
|
query_params = Gitlab::Metrics::Dashboard::Url.parse_query(node['href'])
|
|
return unless [:panelId, :from, :to].all? do |param|
|
|
query_params.include?(param)
|
|
end
|
|
|
|
{ url: node['href'], start: query_params[:from], end: query_params[:to] }
|
|
end
|
|
|
|
# Selects any links with an href contains the configured
|
|
# grafana domain for the project
|
|
def xpath_search
|
|
return unless grafana_url.present?
|
|
|
|
%(descendant-or-self::a[starts-with(@href, '#{grafana_url}')])
|
|
end
|
|
|
|
private
|
|
|
|
def project
|
|
context[:project]
|
|
end
|
|
|
|
def grafana_url
|
|
project&.grafana_integration&.grafana_url
|
|
end
|
|
|
|
def metrics_dashboard_url(params)
|
|
Gitlab::Routing.url_helpers.project_grafana_api_metrics_dashboard_url(
|
|
project,
|
|
embedded: true,
|
|
grafana_url: params[:url],
|
|
start: format_time(params[:start]),
|
|
end: format_time(params[:end])
|
|
)
|
|
end
|
|
|
|
# Formats a timestamp from Grafana for compatibility with
|
|
# parsing in JS via `new Date(timestamp)`
|
|
#
|
|
# @param time [String] Represents miliseconds since epoch
|
|
def format_time(time)
|
|
Time.at(time.to_i / 1000).utc.strftime('%FT%TZ')
|
|
end
|
|
|
|
# Fetches a dashboard and caches the result for the
|
|
# FE to fetch quickly while rendering charts
|
|
def begin_loading_dashboard(url)
|
|
::Gitlab::Metrics::Dashboard::Finder.find(
|
|
project,
|
|
embedded: true,
|
|
grafana_url: url
|
|
)
|
|
end
|
|
end
|
|
end
|
|
end
|