94 lines
3.1 KiB
Ruby
94 lines
3.1 KiB
Ruby
# frozen_string_literal: true
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# we want MessageBus to be close to the front
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# this is important cause the vast majority of web requests go to it
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# this allows us to avoid full middleware crawls each time
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#
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# We aren't manipulating the middleware stack directly because of
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# https://github.com/rails/rails/pull/27936
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Rails.configuration.middleware.unshift(MessageBus::Rack::Middleware)
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# no reason to track this in development, that is 300+ redis calls saved per
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# page view (we serve all assets out of thin in development)
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if Rails.env != "development" || ENV["TRACK_REQUESTS"]
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require "middleware/request_tracker"
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Rails.configuration.middleware.unshift Middleware::RequestTracker
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MethodProfiler.ensure_discourse_instrumentation! if GlobalSetting.enable_performance_http_headers
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end
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if Rails.env.test?
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# In test mode we can't insert/remove middlewares
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# Therefore we insert a small helper which effectively switches the multisite
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# middleware on/off based on the Rails.configuration.multisite value
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class TestMultisiteMiddleware < RailsMultisite::Middleware
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def call(env)
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return @app.call(env) if !Rails.configuration.multisite
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super(env)
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end
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end
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Rails.configuration.middleware.unshift TestMultisiteMiddleware,
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RailsMultisite::DiscoursePatches.config
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class BlockRequestsMiddleware
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@@block_requests = false
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def self.block_requests!
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@@block_requests = true
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end
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def self.allow_requests!
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@@block_requests = false
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end
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def initialize(app)
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@app = app
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end
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def call(env)
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if @@block_requests
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[503, { "Content-Type" => "text/plain" }, ["Blocked by BlockRequestsMiddleware"]]
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else
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@app.call(env)
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end
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end
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end
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Rails.configuration.middleware.unshift BlockRequestsMiddleware
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elsif Rails.configuration.multisite
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assets_hostnames = GlobalSetting.cdn_hostnames
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if assets_hostnames.empty?
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assets_hostnames = Discourse::Application.config.database_configuration[Rails.env]["host_names"]
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end
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RailsMultisite::ConnectionManagement.asset_hostnames = assets_hostnames
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# Multisite needs to be first, because the request tracker and message bus rely on it
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Rails.configuration.middleware.unshift RailsMultisite::Middleware,
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RailsMultisite::DiscoursePatches.config
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Rails.configuration.middleware.delete ActionDispatch::Executor
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if defined?(RailsFailover::ActiveRecord) && Rails.configuration.active_record_rails_failover
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Rails.configuration.middleware.insert_after(
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RailsMultisite::Middleware,
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RailsFailover::ActiveRecord::Middleware,
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)
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end
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if Rails.env.development?
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# Automatically allow development multisite hosts
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RailsMultisite::ConnectionManagement.instance.db_spec_cache.each do |db, specification|
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next if db == "default"
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Rails.configuration.hosts.concat(specification.spec.configuration_hash[:host_names])
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end
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end
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elsif defined?(RailsFailover::ActiveRecord) && Rails.configuration.active_record_rails_failover
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Rails.configuration.middleware.insert_before(
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MessageBus::Rack::Middleware,
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RailsFailover::ActiveRecord::Middleware,
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)
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end
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