1006 lines
31 KiB
Ruby
1006 lines
31 KiB
Ruby
# frozen_string_literal: true
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require 'current_user'
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class ApplicationController < ActionController::Base
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include CurrentUser
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include CanonicalURL::ControllerExtensions
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include JsonError
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include GlobalPath
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include Hijack
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include ReadOnlyHeader
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include VaryHeader
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attr_reader :theme_id
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serialization_scope :guardian
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protect_from_forgery
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# Default Rails 3.2 lets the request through with a blank session
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# we are being more pedantic here and nulling session / current_user
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# and then raising a CSRF exception
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def handle_unverified_request
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# NOTE: API key is secret, having it invalidates the need for a CSRF token
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unless is_api? || is_user_api?
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super
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clear_current_user
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render plain: "[\"BAD CSRF\"]", status: 403
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end
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end
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before_action :rate_limit_crawlers
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before_action :check_readonly_mode
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before_action :handle_theme
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before_action :set_current_user_for_logs
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before_action :set_mp_snapshot_fields
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before_action :clear_notifications
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around_action :with_resolved_locale
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before_action :set_mobile_view
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before_action :block_if_readonly_mode
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before_action :authorize_mini_profiler
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before_action :redirect_to_login_if_required
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before_action :block_if_requires_login
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before_action :preload_json
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before_action :check_xhr
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after_action :add_readonly_header
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after_action :perform_refresh_session
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after_action :dont_cache_page
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after_action :conditionally_allow_site_embedding
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after_action :ensure_vary_header
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after_action :add_noindex_header, if: -> { is_feed_request? || !SiteSetting.allow_index_in_robots_txt }
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after_action :add_noindex_header_to_non_canonical, if: -> { request.get? && !(request.format && request.format.json?) && !request.xhr? }
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HONEYPOT_KEY ||= 'HONEYPOT_KEY'
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CHALLENGE_KEY ||= 'CHALLENGE_KEY'
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layout :set_layout
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def has_escaped_fragment?
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SiteSetting.enable_escaped_fragments? && params.key?("_escaped_fragment_")
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end
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def show_browser_update?
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@show_browser_update ||= CrawlerDetection.show_browser_update?(request.user_agent)
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end
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helper_method :show_browser_update?
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def use_crawler_layout?
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@use_crawler_layout ||=
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request.user_agent &&
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(request.media_type.blank? || request.media_type.include?('html')) &&
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!['json', 'rss'].include?(params[:format]) &&
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(has_escaped_fragment? || params.key?("print") || show_browser_update? ||
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CrawlerDetection.crawler?(request.user_agent, request.headers["HTTP_VIA"])
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)
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end
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def perform_refresh_session
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refresh_session(current_user) unless @readonly_mode
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end
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def immutable_for(duration)
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response.cache_control[:max_age] = duration.to_i
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response.cache_control[:public] = true
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response.cache_control[:extras] = ["immutable"]
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end
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def dont_cache_page
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if !response.headers["Cache-Control"] && response.cache_control.blank?
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response.cache_control[:no_cache] = true
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response.cache_control[:extras] = ["no-store"]
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end
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if SiteSetting.login_required
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response.headers['Discourse-No-Onebox'] = '1'
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end
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end
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def conditionally_allow_site_embedding
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if SiteSetting.allow_embedding_site_in_an_iframe
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response.headers.delete('X-Frame-Options')
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end
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end
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def ember_cli_required?
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Rails.env.development? && ENV['NO_EMBER_CLI'] != '1' && request.headers['X-Discourse-Ember-CLI'] != 'true'
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end
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def application_layout
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ember_cli_required? ? "ember_cli" : "application"
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end
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def set_layout
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case request.headers["Discourse-Render"]
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when "desktop"
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return application_layout
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when "crawler"
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return "crawler"
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end
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use_crawler_layout? ? 'crawler' : application_layout
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end
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class RenderEmpty < StandardError; end
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class PluginDisabled < StandardError; end
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rescue_from RenderEmpty do
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with_resolved_locale { render 'default/empty' }
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end
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rescue_from ArgumentError do |e|
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if e.message == "string contains null byte"
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raise Discourse::InvalidParameters, e.message
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else
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raise e
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end
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end
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rescue_from PG::ReadOnlySqlTransaction do |e|
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Discourse.received_postgres_readonly!
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Rails.logger.error("#{e.class} #{e.message}: #{e.backtrace.join("\n")}")
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rescue_with_handler(Discourse::ReadOnly.new) || raise
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end
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rescue_from ActionController::ParameterMissing do |e|
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render_json_error e.message, status: 400
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end
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rescue_from Discourse::SiteSettingMissing do |e|
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render_json_error I18n.t('site_setting_missing', name: e.message), status: 500
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end
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rescue_from ActionController::RoutingError, PluginDisabled do
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rescue_discourse_actions(:not_found, 404)
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end
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# Handles requests for giant IDs that throw pg exceptions
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rescue_from ActiveModel::RangeError do |e|
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if e.message =~ /ActiveModel::Type::Integer/
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rescue_discourse_actions(:not_found, 404)
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else
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raise e
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end
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end
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rescue_from ActiveRecord::RecordInvalid do |e|
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if request.format && request.format.json?
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render_json_error e, type: :record_invalid, status: 422
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else
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raise e
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end
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end
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rescue_from ActiveRecord::StatementInvalid do |e|
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Discourse.reset_active_record_cache_if_needed(e)
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raise e
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end
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# If they hit the rate limiter
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rescue_from RateLimiter::LimitExceeded do |e|
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retry_time_in_seconds = e&.available_in
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response_headers = {
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'Retry-After': retry_time_in_seconds.to_s
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}
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if e&.error_code
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response_headers['Discourse-Rate-Limit-Error-Code'] = e.error_code
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end
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with_resolved_locale do
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render_json_error(
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e.description,
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type: :rate_limit,
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status: 429,
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extras: { wait_seconds: retry_time_in_seconds },
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headers: response_headers
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)
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end
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end
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rescue_from Discourse::NotLoggedIn do |e|
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if (request.format && request.format.json?) || request.xhr? || !request.get?
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rescue_discourse_actions(:not_logged_in, 403, include_ember: true)
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else
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rescue_discourse_actions(:not_found, 404)
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end
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end
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rescue_from Discourse::InvalidParameters do |e|
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opts = {
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custom_message: 'invalid_params',
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custom_message_params: { message: e.message }
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}
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if (request.format && request.format.json?) || request.xhr? || !request.get?
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rescue_discourse_actions(:invalid_parameters, 400, opts.merge(include_ember: true))
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else
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rescue_discourse_actions(:not_found, 400, opts)
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end
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end
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rescue_from Discourse::NotFound do |e|
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rescue_discourse_actions(
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:not_found,
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e.status,
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check_permalinks: e.check_permalinks,
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original_path: e.original_path,
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custom_message: e.custom_message
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)
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end
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rescue_from Discourse::InvalidAccess do |e|
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if e.opts[:delete_cookie].present?
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cookies.delete(e.opts[:delete_cookie])
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end
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rescue_discourse_actions(
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:invalid_access,
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403,
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include_ember: true,
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custom_message: e.custom_message,
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custom_message_params: e.custom_message_params,
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group: e.group
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)
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end
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rescue_from Discourse::ReadOnly do
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unless response_body
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render_json_error I18n.t('read_only_mode_enabled'), type: :read_only, status: 503
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end
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end
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rescue_from SecondFactor::AuthManager::SecondFactorRequired do |e|
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if request.xhr?
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render json: {
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second_factor_challenge_nonce: e.nonce
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}, status: 403
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else
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redirect_to session_2fa_path(nonce: e.nonce)
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end
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end
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rescue_from SecondFactor::BadChallenge do |e|
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render json: { error: I18n.t(e.error_translation_key) }, status: e.status_code
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end
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def redirect_with_client_support(url, options = {})
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if request.xhr?
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response.headers['Discourse-Xhr-Redirect'] = 'true'
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render plain: url
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else
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redirect_to url, options
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end
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end
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def rescue_discourse_actions(type, status_code, opts = nil)
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opts ||= {}
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show_json_errors = (request.format && request.format.json?) ||
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(request.xhr?) ||
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((params[:external_id] || '').ends_with? '.json')
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if type == :not_found && opts[:check_permalinks]
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url = opts[:original_path] || request.fullpath
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permalink = Permalink.find_by_url(url)
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# there are some cases where we have a permalink but no url
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# cause category / topic was deleted
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if permalink.present? && permalink.target_url
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# permalink present, redirect to that URL
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redirect_with_client_support permalink.target_url, status: :moved_permanently, allow_other_host: true
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return
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end
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end
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message = title = nil
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with_resolved_locale(check_current_user: false) do
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if opts[:custom_message]
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title = message = I18n.t(opts[:custom_message], opts[:custom_message_params] || {})
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else
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message = I18n.t(type)
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if status_code == 403
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title = I18n.t("page_forbidden.title")
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else
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title = I18n.t("page_not_found.title")
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end
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end
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end
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error_page_opts = { title: title, status: status_code, group: opts[:group] }
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if show_json_errors
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opts = { type: type, status: status_code }
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with_resolved_locale(check_current_user: false) do
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# Include error in HTML format for topics#show.
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if (request.params[:controller] == 'topics' && request.params[:action] == 'show') || (request.params[:controller] == 'categories' && request.params[:action] == 'find_by_slug')
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opts[:extras] = { html: build_not_found_page(error_page_opts), group: error_page_opts[:group] }
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end
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end
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render_json_error message, opts
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else
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begin
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# 404 pages won't have the session and theme_keys without these:
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current_user
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handle_theme
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rescue Discourse::InvalidAccess
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return render plain: message, status: status_code
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end
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with_resolved_locale do
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error_page_opts[:layout] = opts[:include_ember] ? 'application' : 'no_ember'
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render html: build_not_found_page(error_page_opts)
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end
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end
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end
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# If a controller requires a plugin, it will raise an exception if that plugin is
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# disabled. This allows plugins to be disabled programmatically.
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def self.requires_plugin(plugin_name)
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before_action do
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raise PluginDisabled.new if Discourse.disabled_plugin_names.include?(plugin_name)
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end
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end
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def set_current_user_for_logs
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if current_user
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Logster.add_to_env(request.env, "username", current_user.username)
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response.headers["X-Discourse-Username"] = current_user.username
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end
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response.headers["X-Discourse-Route"] = "#{controller_name}/#{action_name}"
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end
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def set_mp_snapshot_fields
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if defined?(Rack::MiniProfiler)
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Rack::MiniProfiler.add_snapshot_custom_field("Application version", Discourse.git_version)
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if Rack::MiniProfiler.snapshots_transporter?
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Rack::MiniProfiler.add_snapshot_custom_field("Site", Discourse.current_hostname)
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end
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end
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end
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def clear_notifications
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if current_user && !@readonly_mode
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cookie_notifications = cookies['cn']
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notifications = request.headers['Discourse-Clear-Notifications']
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if cookie_notifications
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if notifications.present?
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notifications += ",#{cookie_notifications}"
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else
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notifications = cookie_notifications
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end
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end
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if notifications.present?
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notification_ids = notifications.split(",").map(&:to_i)
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Notification.read(current_user, notification_ids)
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current_user.reload
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current_user.publish_notifications_state
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cookie_args = {}
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cookie_args[:path] = Discourse.base_path if Discourse.base_path.present?
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cookies.delete('cn', cookie_args)
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end
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end
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end
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def with_resolved_locale(check_current_user: true)
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if check_current_user && (user = current_user rescue nil)
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locale = user.effective_locale
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else
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if SiteSetting.set_locale_from_accept_language_header
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locale = locale_from_header
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else
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locale = SiteSetting.default_locale
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end
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end
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if !I18n.locale_available?(locale)
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locale = SiteSettings::DefaultsProvider::DEFAULT_LOCALE
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end
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I18n.ensure_all_loaded!
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I18n.with_locale(locale) { yield }
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end
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def store_preloaded(key, json)
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@preloaded ||= {}
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# I dislike that there is a gsub as opposed to a gsub!
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# but we can not be mucking with user input, I wonder if there is a way
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# to inject this safety deeper in the library or even in AM serializer
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@preloaded[key] = json.gsub("</", "<\\/")
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end
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# If we are rendering HTML, preload the session data
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def preload_json
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# We don't preload JSON on xhr or JSON request
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return if request.xhr? || request.format.json?
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# if we are posting in makes no sense to preload
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return if request.method != "GET"
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# TODO should not be invoked on redirection so this should be further deferred
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preload_anonymous_data
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if current_user
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current_user.sync_notification_channel_position
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preload_current_user_data
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end
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end
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def set_mobile_view
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session[:mobile_view] = params[:mobile_view] if params.has_key?(:mobile_view)
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end
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NO_CUSTOM = "no_custom"
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NO_PLUGINS = "no_plugins"
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ONLY_OFFICIAL = "only_official"
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SAFE_MODE = "safe_mode"
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def resolve_safe_mode
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return unless guardian.can_enable_safe_mode?
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safe_mode = params[SAFE_MODE]
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if safe_mode
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request.env[NO_CUSTOM] = !!safe_mode.include?(NO_CUSTOM)
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request.env[NO_PLUGINS] = !!safe_mode.include?(NO_PLUGINS)
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request.env[ONLY_OFFICIAL] = !!safe_mode.include?(ONLY_OFFICIAL)
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end
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end
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def handle_theme
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return if request.format == "js"
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resolve_safe_mode
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return if request.env[NO_CUSTOM]
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theme_id = nil
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if (preview_theme_id = request[:preview_theme_id]&.to_i) &&
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guardian.allow_themes?([preview_theme_id], include_preview: true)
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theme_id = preview_theme_id
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end
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user_option = current_user&.user_option
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if theme_id.blank?
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ids, seq = cookies[:theme_ids]&.split("|")
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id = ids&.split(",")&.map(&:to_i)&.first
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if id.present? && seq && seq.to_i == user_option&.theme_key_seq.to_i
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theme_id = id if guardian.allow_themes?([id])
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end
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end
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if theme_id.blank?
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ids = user_option&.theme_ids || []
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theme_id = ids.first if guardian.allow_themes?(ids)
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end
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if theme_id.blank? && SiteSetting.default_theme_id != -1 && guardian.allow_themes?([SiteSetting.default_theme_id])
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theme_id = SiteSetting.default_theme_id
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end
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@theme_id = request.env[:resolved_theme_id] = theme_id
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end
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def guardian
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# sometimes we log on a user in the middle of a request so we should throw
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# away the cached guardian instance when we do that
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if (@guardian&.user).blank? && current_user.present?
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@guardian = Guardian.new(current_user, request)
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end
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@guardian ||= Guardian.new(current_user, request)
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end
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def current_homepage
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current_user&.user_option&.homepage || SiteSetting.anonymous_homepage
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end
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def serialize_data(obj, serializer, opts = nil)
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# If it's an array, apply the serializer as an each_serializer to the elements
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serializer_opts = { scope: guardian }.merge!(opts || {})
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if obj.respond_to?(:to_ary)
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serializer_opts[:each_serializer] = serializer
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ActiveModel::ArraySerializer.new(obj.to_ary, serializer_opts).as_json
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else
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serializer.new(obj, serializer_opts).as_json
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end
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end
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# This is odd, but it seems that in Rails `render json: obj` is about
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# 20% slower than calling MultiJSON.dump ourselves. I'm not sure why
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# Rails doesn't call MultiJson.dump when you pass it json: obj but
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# it seems we don't need whatever Rails is doing.
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def render_serialized(obj, serializer, opts = nil)
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render_json_dump(serialize_data(obj, serializer, opts), opts)
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end
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def render_json_dump(obj, opts = nil)
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opts ||= {}
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if opts[:rest_serializer]
|
|
obj['__rest_serializer'] = "1"
|
|
opts.each do |k, v|
|
|
obj[k] = v if k.to_s.start_with?("refresh_")
|
|
end
|
|
|
|
obj['extras'] = opts[:extras] if opts[:extras]
|
|
obj['meta'] = opts[:meta] if opts[:meta]
|
|
end
|
|
|
|
render json: MultiJson.dump(obj), status: opts[:status] || 200
|
|
end
|
|
|
|
def can_cache_content?
|
|
current_user.blank? && cookies[:authentication_data].blank?
|
|
end
|
|
|
|
# Our custom cache method
|
|
def discourse_expires_in(time_length)
|
|
return unless can_cache_content?
|
|
Middleware::AnonymousCache.anon_cache(request.env, time_length)
|
|
end
|
|
|
|
def fetch_user_from_params(opts = nil, eager_load = [])
|
|
opts ||= {}
|
|
user = if params[:username]
|
|
username_lower = params[:username].downcase.chomp('.json')
|
|
|
|
if current_user && current_user.username_lower == username_lower
|
|
current_user
|
|
else
|
|
find_opts = { username_lower: username_lower }
|
|
find_opts[:active] = true unless opts[:include_inactive] || current_user.try(:staff?)
|
|
result = User
|
|
(result = result.includes(*eager_load)) if !eager_load.empty?
|
|
result.find_by(find_opts)
|
|
end
|
|
elsif params[:external_id]
|
|
external_id = params[:external_id].chomp('.json')
|
|
if provider_name = params[:external_provider]
|
|
raise Discourse::InvalidAccess unless guardian.is_admin? # external_id might be something sensitive
|
|
provider = Discourse.enabled_authenticators.find { |a| a.name == provider_name }
|
|
raise Discourse::NotFound if !provider&.is_managed? # Only managed authenticators use UserAssociatedAccount
|
|
UserAssociatedAccount.find_by(provider_name: provider_name, provider_uid: external_id)&.user
|
|
else
|
|
SingleSignOnRecord.find_by(external_id: external_id).try(:user)
|
|
end
|
|
end
|
|
raise Discourse::NotFound if user.blank?
|
|
|
|
guardian.ensure_can_see!(user)
|
|
user
|
|
end
|
|
|
|
def post_ids_including_replies
|
|
post_ids = params[:post_ids].map(&:to_i)
|
|
post_ids |= PostReply.where(post_id: params[:reply_post_ids]).pluck(:reply_post_id) if params[:reply_post_ids]
|
|
post_ids
|
|
end
|
|
|
|
def no_cookies
|
|
# do your best to ensure response has no cookies
|
|
# longer term we may want to push this into middleware
|
|
headers.delete 'Set-Cookie'
|
|
request.session_options[:skip] = true
|
|
end
|
|
|
|
def secure_session
|
|
SecureSession.new(session["secure_session_id"] ||= SecureRandom.hex)
|
|
end
|
|
|
|
def handle_permalink(path)
|
|
permalink = Permalink.find_by_url(path)
|
|
if permalink && permalink.target_url
|
|
redirect_to permalink.target_url, status: :moved_permanently
|
|
end
|
|
end
|
|
|
|
def rate_limit_second_factor!(user)
|
|
return if params[:second_factor_token].blank?
|
|
|
|
RateLimiter.new(nil, "second-factor-min-#{request.remote_ip}", 6, 1.minute).performed!
|
|
|
|
if user
|
|
RateLimiter.new(nil, "second-factor-min-#{user.username}", 6, 1.minute).performed!
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def locale_from_header
|
|
HttpLanguageParser.parse(request.env["HTTP_ACCEPT_LANGUAGE"])
|
|
end
|
|
|
|
def preload_anonymous_data
|
|
store_preloaded("site", Site.json_for(guardian))
|
|
store_preloaded("siteSettings", SiteSetting.client_settings_json)
|
|
store_preloaded("customHTML", custom_html_json)
|
|
store_preloaded("banner", banner_json)
|
|
store_preloaded("customEmoji", custom_emoji)
|
|
store_preloaded("isReadOnly", @readonly_mode.to_s)
|
|
store_preloaded("activatedThemes", activated_themes_json)
|
|
end
|
|
|
|
def preload_current_user_data
|
|
store_preloaded("currentUser", MultiJson.dump(CurrentUserSerializer.new(current_user, scope: guardian, root: false)))
|
|
report = TopicTrackingState.report(current_user)
|
|
serializer = ActiveModel::ArraySerializer.new(
|
|
report, each_serializer: TopicTrackingStateSerializer, scope: guardian
|
|
)
|
|
store_preloaded("topicTrackingStates", MultiJson.dump(serializer))
|
|
end
|
|
|
|
def custom_html_json
|
|
target = view_context.mobile_view? ? :mobile : :desktop
|
|
|
|
data =
|
|
if @theme_id.present?
|
|
{
|
|
top: Theme.lookup_field(@theme_id, target, "after_header"),
|
|
footer: Theme.lookup_field(@theme_id, target, "footer")
|
|
}
|
|
else
|
|
{}
|
|
end
|
|
|
|
if DiscoursePluginRegistry.custom_html
|
|
data.merge! DiscoursePluginRegistry.custom_html
|
|
end
|
|
|
|
DiscoursePluginRegistry.html_builders.each do |name, _|
|
|
if name.start_with?("client:")
|
|
data[name.sub(/^client:/, '')] = DiscoursePluginRegistry.build_html(name, self)
|
|
end
|
|
end
|
|
|
|
MultiJson.dump(data)
|
|
end
|
|
|
|
def self.banner_json_cache
|
|
@banner_json_cache ||= DistributedCache.new("banner_json")
|
|
end
|
|
|
|
def banner_json
|
|
json = ApplicationController.banner_json_cache["json"]
|
|
|
|
unless json
|
|
topic = Topic.where(archetype: Archetype.banner).first
|
|
banner = topic.present? ? topic.banner : {}
|
|
ApplicationController.banner_json_cache["json"] = json = MultiJson.dump(banner)
|
|
end
|
|
|
|
json
|
|
end
|
|
|
|
def custom_emoji
|
|
serializer = ActiveModel::ArraySerializer.new(Emoji.custom, each_serializer: EmojiSerializer)
|
|
MultiJson.dump(serializer)
|
|
end
|
|
|
|
# Render action for a JSON error.
|
|
#
|
|
# obj - a translated string, an ActiveRecord model, or an array of translated strings
|
|
# opts:
|
|
# type - a machine-readable description of the error
|
|
# status - HTTP status code to return
|
|
# headers - extra headers for the response
|
|
def render_json_error(obj, opts = {})
|
|
opts = { status: opts } if opts.is_a?(Integer)
|
|
opts.fetch(:headers, {}).each { |name, value| headers[name.to_s] = value }
|
|
|
|
render(
|
|
json: MultiJson.dump(create_errors_json(obj, opts)),
|
|
status: opts[:status] || status_code(obj)
|
|
)
|
|
end
|
|
|
|
def status_code(obj)
|
|
return 403 if obj.try(:forbidden)
|
|
return 404 if obj.try(:not_found)
|
|
422
|
|
end
|
|
|
|
def success_json
|
|
{ success: 'OK' }
|
|
end
|
|
|
|
def failed_json
|
|
{ failed: 'FAILED' }
|
|
end
|
|
|
|
def json_result(obj, opts = {})
|
|
if yield(obj)
|
|
json = success_json
|
|
|
|
# If we were given a serializer, add the class to the json that comes back
|
|
if opts[:serializer].present?
|
|
json[obj.class.name.underscore] = opts[:serializer].new(obj, scope: guardian).serializable_hash
|
|
end
|
|
|
|
render json: MultiJson.dump(json)
|
|
else
|
|
error_obj = nil
|
|
if opts[:additional_errors]
|
|
error_target = opts[:additional_errors].find do |o|
|
|
target = obj.public_send(o)
|
|
target && target.errors.present?
|
|
end
|
|
error_obj = obj.public_send(error_target) if error_target
|
|
end
|
|
render_json_error(error_obj || obj)
|
|
end
|
|
end
|
|
|
|
def mini_profiler_enabled?
|
|
defined?(Rack::MiniProfiler) && (guardian.is_developer? || Rails.env.development?)
|
|
end
|
|
|
|
def authorize_mini_profiler
|
|
return unless mini_profiler_enabled?
|
|
Rack::MiniProfiler.authorize_request
|
|
end
|
|
|
|
def check_xhr
|
|
# bypass xhr check on PUT / POST / DELETE provided api key is there, otherwise calling api is annoying
|
|
return if !request.get? && (is_api? || is_user_api?)
|
|
raise ApplicationController::RenderEmpty.new unless ((request.format && request.format.json?) || request.xhr?)
|
|
end
|
|
|
|
def apply_cdn_headers
|
|
Discourse.apply_cdn_headers(response.headers) if Discourse.is_cdn_request?(request.env, request.method)
|
|
end
|
|
|
|
def self.requires_login(arg = {})
|
|
@requires_login_arg = arg
|
|
end
|
|
|
|
def self.requires_login_arg
|
|
@requires_login_arg
|
|
end
|
|
|
|
def block_if_requires_login
|
|
if arg = self.class.requires_login_arg
|
|
check =
|
|
if except = arg[:except]
|
|
!except.include?(action_name.to_sym)
|
|
elsif only = arg[:only]
|
|
only.include?(action_name.to_sym)
|
|
else
|
|
true
|
|
end
|
|
ensure_logged_in if check
|
|
end
|
|
end
|
|
|
|
def ensure_logged_in
|
|
raise Discourse::NotLoggedIn.new unless current_user.present?
|
|
end
|
|
|
|
def ensure_staff
|
|
raise Discourse::InvalidAccess.new unless current_user && current_user.staff?
|
|
end
|
|
|
|
def ensure_admin
|
|
raise Discourse::InvalidAccess.new unless current_user && current_user.admin?
|
|
end
|
|
|
|
def ensure_wizard_enabled
|
|
raise Discourse::InvalidAccess.new unless SiteSetting.wizard_enabled?
|
|
end
|
|
|
|
def destination_url
|
|
request.original_url unless request.original_url =~ /uploads/
|
|
end
|
|
|
|
def redirect_to_login
|
|
dont_cache_page
|
|
|
|
if SiteSetting.auth_immediately && SiteSetting.enable_discourse_connect?
|
|
# save original URL in a session so we can redirect after login
|
|
session[:destination_url] = destination_url
|
|
redirect_to path('/session/sso')
|
|
elsif SiteSetting.auth_immediately && !SiteSetting.enable_local_logins && Discourse.enabled_authenticators.length == 1 && !cookies[:authentication_data]
|
|
# Only one authentication provider, direct straight to it.
|
|
# If authentication_data is present, then we are halfway though registration. Don't redirect offsite
|
|
cookies[:destination_url] = destination_url
|
|
redirect_to path("/auth/#{Discourse.enabled_authenticators.first.name}")
|
|
else
|
|
# save original URL in a cookie (javascript redirects after login in this case)
|
|
cookies[:destination_url] = destination_url
|
|
redirect_to path("/login")
|
|
end
|
|
end
|
|
|
|
def redirect_to_login_if_required
|
|
return if request.format.json? && is_api?
|
|
|
|
# Used by clients authenticated via user API.
|
|
# Redirects to provided URL scheme if
|
|
# - request uses a valid public key and auth_redirect scheme
|
|
# - one_time_password scope is allowed
|
|
if !current_user &&
|
|
params.has_key?(:user_api_public_key) &&
|
|
params.has_key?(:auth_redirect)
|
|
begin
|
|
OpenSSL::PKey::RSA.new(params[:user_api_public_key])
|
|
rescue OpenSSL::PKey::RSAError
|
|
return render plain: I18n.t("user_api_key.invalid_public_key")
|
|
end
|
|
|
|
if UserApiKey.invalid_auth_redirect?(params[:auth_redirect])
|
|
return render plain: I18n.t("user_api_key.invalid_auth_redirect")
|
|
end
|
|
|
|
if UserApiKey.allowed_scopes.superset?(Set.new(["one_time_password"]))
|
|
redirect_to("#{params[:auth_redirect]}?otp=true", allow_other_host: true)
|
|
return
|
|
end
|
|
end
|
|
|
|
if !current_user && SiteSetting.login_required?
|
|
flash.keep
|
|
if (request.format && request.format.json?) || request.xhr? || !request.get?
|
|
ensure_logged_in
|
|
else
|
|
redirect_to_login
|
|
end
|
|
return
|
|
end
|
|
|
|
return if !current_user
|
|
return if !should_enforce_2fa?
|
|
|
|
redirect_path = path("/u/#{current_user.encoded_username}/preferences/second-factor")
|
|
if !request.fullpath.start_with?(redirect_path)
|
|
redirect_to path(redirect_path)
|
|
nil
|
|
end
|
|
end
|
|
|
|
def should_enforce_2fa?
|
|
disqualified_from_2fa_enforcement = request.format.json? || is_api? || current_user.anonymous?
|
|
enforcing_2fa = ((SiteSetting.enforce_second_factor == 'staff' && current_user.staff?) || SiteSetting.enforce_second_factor == 'all')
|
|
!disqualified_from_2fa_enforcement && enforcing_2fa && !current_user.has_any_second_factor_methods_enabled?
|
|
end
|
|
|
|
def block_if_readonly_mode
|
|
return if request.fullpath.start_with?(path "/admin/backups")
|
|
raise Discourse::ReadOnly.new if !(request.get? || request.head?) && @readonly_mode
|
|
end
|
|
|
|
def build_not_found_page(opts = {})
|
|
if SiteSetting.bootstrap_error_pages?
|
|
preload_json
|
|
opts[:layout] = 'application' if opts[:layout] == 'no_ember'
|
|
end
|
|
|
|
@current_user = current_user rescue nil
|
|
|
|
if !SiteSetting.login_required? || @current_user
|
|
key = "page_not_found_topics:#{I18n.locale}"
|
|
@topics_partial = Discourse.cache.fetch(key, expires_in: 10.minutes) do
|
|
category_topic_ids = Category.pluck(:topic_id).compact
|
|
@top_viewed = TopicQuery.new(nil, except_topic_ids: category_topic_ids).list_top_for("monthly").topics.first(10)
|
|
@recent = Topic.includes(:category).where.not(id: category_topic_ids).recent(10)
|
|
render_to_string partial: '/exceptions/not_found_topics', formats: [:html]
|
|
end.html_safe
|
|
end
|
|
|
|
@container_class = "wrap not-found-container"
|
|
@title = opts[:title] || I18n.t("page_not_found.title")
|
|
@group = opts[:group]
|
|
@hide_search = true if SiteSetting.login_required
|
|
|
|
params[:slug] = params[:slug].first if params[:slug].kind_of?(Array)
|
|
params[:id] = params[:id].first if params[:id].kind_of?(Array)
|
|
@slug = (params[:slug].presence || params[:id].presence || "").to_s.tr('-', ' ')
|
|
|
|
render_to_string status: opts[:status], layout: opts[:layout], formats: [:html], template: '/exceptions/not_found'
|
|
end
|
|
|
|
def is_asset_path
|
|
request.env['DISCOURSE_IS_ASSET_PATH'] = 1
|
|
end
|
|
|
|
def is_feed_request?
|
|
request.format.atom? || request.format.rss?
|
|
end
|
|
|
|
def add_noindex_header
|
|
if request.get? && !response.headers['X-Robots-Tag']
|
|
if SiteSetting.allow_index_in_robots_txt
|
|
response.headers['X-Robots-Tag'] = 'noindex'
|
|
else
|
|
response.headers['X-Robots-Tag'] = 'noindex, nofollow'
|
|
end
|
|
end
|
|
end
|
|
|
|
def add_noindex_header_to_non_canonical
|
|
canonical = (@canonical_url || @default_canonical)
|
|
if canonical.present? && canonical != request.url && !SiteSetting.allow_indexing_non_canonical_urls
|
|
response.headers['X-Robots-Tag'] ||= 'noindex'
|
|
end
|
|
end
|
|
|
|
protected
|
|
|
|
def honeypot_value
|
|
secure_session[HONEYPOT_KEY] ||= SecureRandom.hex
|
|
end
|
|
|
|
def challenge_value
|
|
secure_session[CHALLENGE_KEY] ||= SecureRandom.hex
|
|
end
|
|
|
|
def render_post_json(post, add_raw: true)
|
|
post_serializer = PostSerializer.new(post, scope: guardian, root: false)
|
|
post_serializer.add_raw = add_raw
|
|
|
|
counts = PostAction.counts_for([post], current_user)
|
|
if counts && counts = counts[post.id]
|
|
post_serializer.post_actions = counts
|
|
end
|
|
render_json_dump(post_serializer)
|
|
end
|
|
|
|
# returns an array of integers given a param key
|
|
# returns nil if key is not found
|
|
def param_to_integer_list(key, delimiter = ',')
|
|
case params[key]
|
|
when String
|
|
params[key].split(delimiter).map(&:to_i)
|
|
when Array
|
|
params[key].map(&:to_i)
|
|
end
|
|
end
|
|
|
|
def activated_themes_json
|
|
id = @theme_id
|
|
return "{}" if id.blank?
|
|
ids = Theme.transform_ids(id)
|
|
Theme.where(id: ids).pluck(:id, :name).to_h.to_json
|
|
end
|
|
|
|
def rate_limit_crawlers
|
|
return if current_user.present?
|
|
return if SiteSetting.slow_down_crawler_user_agents.blank?
|
|
|
|
user_agent = request.user_agent&.downcase
|
|
return if user_agent.blank?
|
|
|
|
SiteSetting.slow_down_crawler_user_agents.downcase.split("|").each do |crawler|
|
|
if user_agent.include?(crawler)
|
|
key = "#{crawler}_crawler_rate_limit"
|
|
limiter = RateLimiter.new(
|
|
nil,
|
|
key,
|
|
1,
|
|
SiteSetting.slow_down_crawler_rate,
|
|
error_code: key
|
|
)
|
|
limiter.performed!
|
|
break
|
|
end
|
|
end
|
|
end
|
|
|
|
def run_second_factor!(action_class, action_data = nil)
|
|
action = action_class.new(guardian, request, action_data)
|
|
manager = SecondFactor::AuthManager.new(guardian, action)
|
|
yield(manager) if block_given?
|
|
result = manager.run!(request, params, secure_session)
|
|
|
|
if !result.no_second_factors_enabled? &&
|
|
!result.second_factor_auth_completed? &&
|
|
!result.second_factor_auth_skipped?
|
|
# should never happen, but I want to know if somehow it does! (osama)
|
|
raise "2fa process ended up in a bad state!"
|
|
end
|
|
|
|
result
|
|
end
|
|
end
|