mirror of
https://github.com/discourse/discourse.git
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25f1f23288
Previously we would consider a user "present" and "last seen" if the browser window was visible. This has many edge cases, you could be considered present and around for days just by having a window open and no screensaver on. Instead we now also check that you either clicked, transitioned around app or scrolled the page in the last minute in combination with window visibility This will lead to more reliable notifications via email and reduce load of message bus for cases where a user walks away from the terminal
129 lines
3.4 KiB
Ruby
129 lines
3.4 KiB
Ruby
# frozen_string_literal: true
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if GlobalSetting.skip_redis?
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MessageBus.configure(backend: :memory)
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return
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end
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MessageBus.site_id_lookup do |env = nil|
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if env
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setup_message_bus_env(env)
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env["__mb"][:site_id]
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else
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RailsMultisite::ConnectionManagement.current_db
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end
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end
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def setup_message_bus_env(env)
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return if env["__mb"]
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::Middleware::RequestTracker.populate_request_queue_seconds!(env)
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if queue_time = env["REQUEST_QUEUE_SECONDS"]
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if queue_time > (GlobalSetting.reject_message_bus_queue_seconds).to_f
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raise RateLimiter::LimitExceeded, 30 + (rand * 120).to_i
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end
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end
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host = RailsMultisite::ConnectionManagement.host(env)
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RailsMultisite::ConnectionManagement.with_hostname(host) do
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extra_headers = {
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"Access-Control-Allow-Origin" => Discourse.base_url_no_prefix,
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"Access-Control-Allow-Methods" => "GET, POST",
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"Access-Control-Allow-Headers" => "X-SILENCE-LOGGER, X-Shared-Session-Key, Dont-Chunk, Discourse-Present"
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}
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user = nil
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begin
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user = CurrentUser.lookup_from_env(env)
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rescue Discourse::InvalidAccess => e
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# this is bad we need to remove the cookie
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if e.opts[:delete_cookie].present?
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extra_headers['Set-Cookie'] = '_t=del; path=/; expires=Thu, 01 Jan 1970 00:00:00 GMT'
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end
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rescue => e
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Discourse.warn_exception(e, message: "Unexpected error in Message Bus")
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end
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user_id = user && user.id
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raise Discourse::InvalidAccess if !user_id && SiteSetting.login_required
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is_admin = !!(user && user.admin?)
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group_ids = if is_admin
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# special rule, admin is allowed access to all groups
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Group.pluck(:id)
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elsif user
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user.groups.pluck('groups.id')
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end
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if env[Auth::DefaultCurrentUserProvider::BAD_TOKEN]
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extra_headers['Discourse-Logged-Out'] = '1'
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end
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hash = {
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extra_headers: extra_headers,
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user_id: user_id,
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group_ids: group_ids,
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is_admin: is_admin,
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site_id: RailsMultisite::ConnectionManagement.current_db
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}
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env["__mb"] = hash
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end
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nil
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end
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MessageBus.extra_response_headers_lookup do |env|
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setup_message_bus_env(env)
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env["__mb"][:extra_headers]
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end
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MessageBus.user_id_lookup do |env|
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setup_message_bus_env(env)
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env["__mb"][:user_id]
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end
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MessageBus.group_ids_lookup do |env|
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setup_message_bus_env(env)
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env["__mb"][:group_ids]
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end
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MessageBus.is_admin_lookup do |env|
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setup_message_bus_env(env)
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env["__mb"][:is_admin]
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end
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MessageBus.on_middleware_error do |env, e|
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if Discourse::InvalidAccess === e
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[403, {}, ["Invalid Access"]]
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elsif RateLimiter::LimitExceeded === e
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[429, { 'Retry-After' => e.available_in }, [e.description]]
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end
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end
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MessageBus.on_connect do |site_id|
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RailsMultisite::ConnectionManagement.establish_connection(db: site_id)
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end
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MessageBus.on_disconnect do |site_id|
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ActiveRecord::Base.connection_handler.clear_active_connections!
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end
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if Rails.env == "test"
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MessageBus.configure(backend: :memory)
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else
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MessageBus.redis_config = GlobalSetting.message_bus_redis_config
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end
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MessageBus.reliable_pub_sub.max_backlog_size = GlobalSetting.message_bus_max_backlog_size
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MessageBus.long_polling_enabled = SiteSetting.enable_long_polling
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MessageBus.long_polling_interval = SiteSetting.long_polling_interval
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MessageBus.cache_assets = !Rails.env.development?
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MessageBus.enable_diagnostics
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if Rails.env == "test" || $0 =~ /rake$/
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# disable keepalive in testing
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MessageBus.keepalive_interval = -1
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end
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