mirror of
https://github.com/discourse/discourse.git
synced 2024-12-15 15:15:48 +08:00
1170 lines
36 KiB
Ruby
1170 lines
36 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 ReadOnlyMixin
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include ThemeResolver
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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 :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 :redirect_to_profile_if_required
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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,
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if: -> { is_feed_request? || !SiteSetting.allow_index_in_robots_txt }
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after_action :add_noindex_header_to_non_canonical, if: :spa_boot_request?
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after_action :set_cross_origin_opener_policy_header, if: :spa_boot_request?
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after_action :clean_xml, if: :is_feed_response?
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after_action :add_early_hint_header, if: -> { spa_boot_request? }
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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 && (request.media_type.blank? || request.media_type.include?("html")) &&
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!%w[json rss].include?(params[:format]) &&
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(
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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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response.headers["Discourse-No-Onebox"] = "1" if SiteSetting.login_required
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end
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def conditionally_allow_site_embedding
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response.headers.delete("X-Frame-Options") if SiteSetting.allow_embedding_site_in_an_iframe
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end
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def ember_cli_required?
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Rails.env.development? && ENV["ALLOW_EMBER_CLI_PROXY_BYPASS"] != "1" &&
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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
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end
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class PluginDisabled < StandardError
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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 = { "Retry-After": retry_time_in_seconds.to_s }
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response_headers["Discourse-Rate-Limit-Error-Code"] = e.error_code if e&.error_code
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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: {
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wait_seconds: retry_time_in_seconds,
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time_left: e&.time_left,
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},
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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 = { custom_message: "invalid_params", custom_message_params: { message: e.message } }
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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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cookies.delete(e.opts[:delete_cookie]) if e.opts[:delete_cookie].present?
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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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respond_to do |format|
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format.json do
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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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format.html { render status: 503, layout: "no_ember", template: "exceptions/read_only" }
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end
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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: { second_factor_challenge_nonce: e.nonce }, 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 =
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(request.format && request.format.json?) || (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,
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status: :moved_permanently,
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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") ||
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(
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request.params[:controller] == "categories" &&
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request.params[:action] == "find_by_slug"
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)
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opts[:extras] = {
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title: I18n.t("page_not_found.page_title"),
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html: build_not_found_page(error_page_opts),
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group: error_page_opts[:group],
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}
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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] && @preloaded) ? set_layout : "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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if plugin = Discourse.plugins_by_name[plugin_name]
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raise PluginDisabled.new if !plugin.enabled?
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elsif Rails.env.test?
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raise "Required plugin '#{plugin_name}' not found. The string passed to requires_plugin should match the plugin's name at the top of plugin.rb"
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else
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Rails.logger.warn("Required plugin '#{plugin_name}' not found")
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end
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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 &&
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(
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user =
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begin
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current_user
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rescue StandardError
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nil
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end
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)
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locale = user.effective_locale
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else
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locale = Discourse.anonymous_locale(request)
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locale ||= SiteSetting.default_locale
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end
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locale = SiteSettings::DefaultsProvider::DEFAULT_LOCALE if !I18n.locale_available?(locale)
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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_THEMES = "no_themes"
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NO_PLUGINS = "no_plugins"
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NO_UNOFFICIAL_PLUGINS = "no_unofficial_plugins"
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SAFE_MODE = "safe_mode"
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LEGACY_NO_THEMES = "no_custom"
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LEGACY_NO_UNOFFICIAL_PLUGINS = "only_official"
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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.is_a?(String)
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safe_mode = safe_mode.split(",")
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request.env[NO_THEMES] = safe_mode.include?(NO_THEMES) || safe_mode.include?(LEGACY_NO_THEMES)
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request.env[NO_PLUGINS] = safe_mode.include?(NO_PLUGINS)
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request.env[NO_UNOFFICIAL_PLUGINS] = safe_mode.include?(NO_UNOFFICIAL_PLUGINS) ||
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safe_mode.include?(LEGACY_NO_UNOFFICIAL_PLUGINS)
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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_THEMES]
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@theme_id ||= ThemeResolver.resolve_theme_id(request, guardian, current_user)
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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 || HomepageHelper.resolve(request, current_user)
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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.
|
|
def render_serialized(obj, serializer, opts = nil)
|
|
render_json_dump(serialize_data(obj, serializer, opts), opts)
|
|
end
|
|
|
|
def render_json_dump(obj, opts = nil)
|
|
opts ||= {}
|
|
if opts[:rest_serializer]
|
|
obj["__rest_serializer"] = "1"
|
|
opts.each { |k, v| obj[k] = v if k.to_s.start_with?("refresh_") }
|
|
|
|
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!
|
|
|
|
RateLimiter.new(nil, "second-factor-min-#{user.username}", 6, 1.minute).performed! if user
|
|
end
|
|
|
|
def login_method
|
|
return if current_user.anonymous?
|
|
current_user.authenticated_with_oauth ? Auth::LOGIN_METHOD_OAUTH : Auth::LOGIN_METHOD_LOCAL
|
|
end
|
|
|
|
private
|
|
|
|
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", get_or_check_readonly_mode.to_json)
|
|
store_preloaded("isStaffWritesOnly", get_or_check_staff_writes_only_mode.to_json)
|
|
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,
|
|
login_method: login_method,
|
|
),
|
|
),
|
|
)
|
|
|
|
report = TopicTrackingState.report(current_user)
|
|
serializer = TopicTrackingStateSerializer.new(report, scope: guardian, root: false)
|
|
|
|
hash = serializer.as_json
|
|
|
|
store_preloaded("topicTrackingStates", MultiJson.dump(hash[:data]))
|
|
store_preloaded("topicTrackingStateMeta", MultiJson.dump(hash[:meta]))
|
|
|
|
if current_user.admin?
|
|
# This is used in the wizard so we can preload fonts using the FontMap JS API.
|
|
store_preloaded("fontMap", MultiJson.dump(load_font_map))
|
|
|
|
# Used to show plugin-specific admin routes in the sidebar.
|
|
store_preloaded(
|
|
"visiblePlugins",
|
|
MultiJson.dump(
|
|
Discourse
|
|
.plugins_sorted_by_name(enabled_only: false)
|
|
.map do |plugin|
|
|
{
|
|
name: plugin.name.downcase,
|
|
admin_route: plugin.full_admin_route,
|
|
enabled: plugin.enabled?,
|
|
}
|
|
end,
|
|
),
|
|
)
|
|
end
|
|
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
|
|
|
|
data.merge! DiscoursePluginRegistry.custom_html if DiscoursePluginRegistry.custom_html
|
|
|
|
DiscoursePluginRegistry.html_builders.each do |name, _|
|
|
if name.start_with?("client:")
|
|
data[name.sub(/\Aclient:/, "")] = 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
|
|
return "{}" if !current_user && SiteSetting.login_required?
|
|
|
|
ApplicationController
|
|
.banner_json_cache
|
|
.defer_get_set("json") do
|
|
topic = Topic.where(archetype: Archetype.banner).first
|
|
banner = topic.present? ? topic.banner : {}
|
|
MultiJson.dump(banner)
|
|
end
|
|
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 if !request.format&.json? && !request.xhr?
|
|
end
|
|
|
|
def apply_cdn_headers
|
|
if Discourse.is_cdn_request?(request.env, request.method)
|
|
Discourse.apply_cdn_headers(response.headers)
|
|
end
|
|
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 if current_user.blank?
|
|
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 UserApiKeyClient.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?
|
|
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 disqualified_from_2fa_enforcement
|
|
request.format.json? || is_api? || current_user.anonymous? ||
|
|
(
|
|
!SiteSetting.enforce_second_factor_on_external_auth &&
|
|
login_method == Auth::LOGIN_METHOD_OAUTH
|
|
)
|
|
end
|
|
|
|
def redirect_to_profile_if_required
|
|
return if request.format.json?
|
|
return if !current_user
|
|
return if !current_user.needs_required_fields_check?
|
|
|
|
if current_user.populated_required_custom_fields?
|
|
current_user.bump_required_fields_version
|
|
return
|
|
end
|
|
|
|
redirect_path = path("/u/#{current_user.encoded_username}/preferences/profile")
|
|
second_factor_path = path("/u/#{current_user.encoded_username}/preferences/second-factor")
|
|
allowed_paths = [redirect_path, second_factor_path, path("/admin"), path("/safe-mode")]
|
|
if allowed_paths.none? { |p| request.fullpath.start_with?(p) }
|
|
rate_limiter = RateLimiter.new(current_user, "redirect_to_required_fields_log", 1, 24.hours)
|
|
|
|
if rate_limiter.performed!(raise_error: false)
|
|
UserHistory.create!(
|
|
action: UserHistory.actions[:redirected_to_required_fields],
|
|
acting_user_id: current_user.id,
|
|
)
|
|
end
|
|
|
|
redirect_to path(redirect_path)
|
|
nil
|
|
end
|
|
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 =
|
|
begin
|
|
current_user
|
|
rescue StandardError
|
|
nil
|
|
end
|
|
|
|
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.select(:topic_id).where.not(topic_id: nil)
|
|
@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"
|
|
@page_title = I18n.t("page_not_found.page_title")
|
|
@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 is_feed_response?
|
|
request.get? && response&.content_type&.match?(/(rss|atom)/)
|
|
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
|
|
|
|
def set_cross_origin_opener_policy_header
|
|
if current_user.present? && SiteSetting.cross_origin_opener_unsafe_none_groups_map.any? &&
|
|
current_user.in_any_groups?(SiteSetting.cross_origin_opener_unsafe_none_groups_map)
|
|
response.headers["Cross-Origin-Opener-Policy"] = "unsafe-none"
|
|
else
|
|
response.headers["Cross-Origin-Opener-Policy"] = SiteSetting.cross_origin_opener_policy_header
|
|
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 run_second_factor!(action_class, action_data: nil, target_user: current_user)
|
|
if current_user && target_user != current_user
|
|
# Anon can run 2fa against another target, but logged-in users should not.
|
|
# This should be validated at the `run_second_factor!` call site.
|
|
raise "running 2fa against another user is not allowed"
|
|
end
|
|
|
|
action = action_class.new(guardian, request, opts: action_data, target_user: target_user)
|
|
manager = SecondFactor::AuthManager.new(guardian, action, target_user: target_user)
|
|
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
|
|
|
|
# We don't actually send 103 Early Hint responses from Discourse. However, upstream proxies can be configured
|
|
# to cache a response header from the app and use that to send an Early Hint response to future clients.
|
|
# See 'early_hint_header_mode' and 'early_hint_header_name' Global Setting descriptions for more info.
|
|
def add_early_hint_header
|
|
return if GlobalSetting.early_hint_header_mode.nil?
|
|
|
|
links = []
|
|
|
|
if GlobalSetting.early_hint_header_mode == "preconnect"
|
|
[GlobalSetting.cdn_url, SiteSetting.s3_cdn_url].each do |url|
|
|
next if url.blank?
|
|
base_url = URI.join(url, "/").to_s.chomp("/")
|
|
links.push("<#{base_url}>; rel=preconnect")
|
|
end
|
|
elsif GlobalSetting.early_hint_header_mode == "preload"
|
|
links.push(*@asset_preload_links)
|
|
end
|
|
|
|
response.headers[GlobalSetting.early_hint_header_name] = links.join(", ") if links.present?
|
|
end
|
|
|
|
def spa_boot_request?
|
|
request.get? && !(request.format && request.format.json?) && !request.xhr?
|
|
end
|
|
|
|
def load_font_map
|
|
DiscourseFonts
|
|
.fonts
|
|
.each_with_object({}) do |font, font_map|
|
|
next if !font[:variants]
|
|
font_map[font[:key]] = font[:variants].map do |v|
|
|
{
|
|
url: "#{Discourse.base_url}/fonts/#{v[:filename]}?v=#{DiscourseFonts::VERSION}",
|
|
weight: v[:weight],
|
|
}
|
|
end
|
|
end
|
|
end
|
|
|
|
def fetch_limit_from_params(params: self.params, default:, max:)
|
|
fetch_int_from_params(:limit, params: params, default: default, max: max)
|
|
end
|
|
|
|
def fetch_int_from_params(key, params: self.params, default:, min: 0, max: nil)
|
|
key = key.to_sym
|
|
|
|
if default.present? && ((max.present? && default > max) || (min.present? && default < min))
|
|
raise "default #{key.inspect} is not between #{min.inspect} and #{max.inspect}"
|
|
end
|
|
|
|
if params.has_key?(key)
|
|
value =
|
|
begin
|
|
Integer(params[key])
|
|
rescue ArgumentError
|
|
raise Discourse::InvalidParameters.new(key)
|
|
end
|
|
|
|
if (min.present? && value < min) || (max.present? && value > max)
|
|
raise Discourse::InvalidParameters.new(key)
|
|
end
|
|
|
|
value
|
|
else
|
|
default
|
|
end
|
|
end
|
|
|
|
def clean_xml
|
|
response.body.gsub!(XmlCleaner::INVALID_CHARACTERS, "")
|
|
end
|
|
|
|
def service_params
|
|
{ params: params.to_unsafe_h, guardian: }
|
|
end
|
|
end
|