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panel/app/controllers/stats_controller.rb

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# frozen_string_literal: true
# Estadísticas del sitio
class StatsController < ApplicationController
include Pundit
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include ActionView::Helpers::DateHelper
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before_action :authenticate_usuarie!
before_action :authorize_stats
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EXTRA_OPTIONS = {
builds: {},
space_used: { bytes: true },
build_time: {}
}.freeze
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# XXX: Permitir a Chart.js inyectar su propio CSS
content_security_policy only: :index do |policy|
policy.style_src :self, :unsafe_inline
policy.script_src :self, :unsafe_inline
end
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def index
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@chart_params = { interval: interval }
hostnames
last_stat
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chart_options
normalized_urls
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end
# Genera un gráfico de visitas por dominio asociado a este sitio
def host
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return unless stale? [last_stat, hostnames, interval]
stats = Rollup.where_dimensions(host: hostnames).multi_series('host', interval: interval).tap do |series|
series.each do |serie|
serie[:name] = serie.dig(:dimensions, 'host')
serie[:data].transform_values! do |value|
value * nodes
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end
end
end
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render json: stats
end
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def resources
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return unless stale? [last_stat, interval, resource]
options = {
interval: interval,
dimensions: {
deploy_id: @site.deploys.where(type: 'DeployLocal').pluck(:id).first
}
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}
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render json: Rollup.series(resource, **options)
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end
def uris
return unless stale? [last_stat, hostnames, interval, normalized_urls]
options = { host: hostnames, uri: normalized_paths }
stats = Rollup.where_dimensions(**options).multi_series('host|uri', interval: interval).tap do |series|
series.each do |serie|
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serie[:name] = serie[:dimensions].slice('host', 'uri').values.join.sub('/index.html', '/')
serie[:data].transform_values! do |value|
value * nodes
end
end
end
render json: stats
end
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private
def last_stat
@last_stat ||= Stat.last
end
def authorize_stats
@site = find_site
authorize SiteStat.new(@site)
end
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# TODO: Eliminar cuando mergeemos referer-origin
def hostnames
@hostnames ||= [@site.hostname, @site.alternative_hostnames].flatten
end
# Normalizar las URLs
#
# @return [Array]
def normalized_urls
@normalized_urls ||= params.permit(:urls).try(:[],
:urls)&.split("\n")&.map(&:strip)&.select(&:present?)&.select do |uri|
uri.start_with? 'https://'
end&.map do |u|
# XXX: Eliminar
# @see {https://0xacab.org/sutty/containers/nginx/-/merge_requests/1}
next u unless u.end_with? '/'
"#{u}index.html"
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end&.uniq || [@site.url, @site.urls].flatten.uniq
end
def normalized_paths
@normalized_paths ||= normalized_urls.map do |u|
"/#{u.split('/', 4).last}"
end.map do |u|
URI.decode_www_form_component u
end
end
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# Opciones por defecto para los gráficos.
#
# La invitación a volver dentro de X tiempo es para dar un estimado de
# cuándo habrá información disponible, porque Rollup genera intervalos
# completos (¿aunque dice que no?)
#
# La diferencia se calcula sumando el intervalo a la hora de última
# toma de estadísticas y restando el tiempo que pasó desde ese
# momento.
def chart_options
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time = (last_stat&.created_at || Time.now) + 1.try(interval)
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please_return_at = { please_return_at: distance_of_time_in_words(Time.now, time) }
@chart_options ||= {
locale: I18n.locale,
empty: I18n.t('stats.index.empty', **please_return_at),
loading: I18n.t('stats.index.loading'),
html: %(<div id="%{id}" class="d-flex align-items-center justify-content-center" style="height: %{height}; width: %{width};">%{loading}</div>)
}
end
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# Obtiene y valida los intervalos
#
# @return [Symbol]
def interval
@interval ||= begin
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i = params[:interval]&.to_sym
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Stat::INTERVALS.include?(i) ? i : :day
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end
end
def resource
@resource ||= begin
r = params[:resource].to_sym
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Stat::RESOURCES.include?(r) ? r : :builds
end
end
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# Obtiene la cantidad de nodos de Sutty, para poder calcular la
# cantidad de visitas.
#
# Como repartimos las visitas por nodo rotando las IPs en el
# nameserver y los resolvedores de DNS eligen un nameserver
# aleatoriamente, la cantidad de visitas se reparte
# equitativamente.
#
# XXX: Remover cuando podamos centralizar los AccessLog
#
# @return [Integer]
def nodes
@nodes ||= ENV.fetch('NODES', 1).to_i
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end
end