railtie.rb in logstasher-2.1.2

- old
+ new

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 require 'rails/railtie'
 require 'action_view/log_subscriber'
 require 'action_controller/log_subscriber'
 require 'socket'
 
@@ -18,11 +20,11 @@
     # Try loading the config/logstasher.yml if present
     env = Rails.env.to_sym || :development
     config_file = File.expand_path './config/logstasher.yml'
 
     # Load and ERB templating of YAML files
-    LOGSTASHER = File.exist?(config_file) ? YAML.load(ERB.new(File.read(config_file)).result).symbolize_keys : nil
+    LOGSTASHER = File.exist?(config_file) ? YAML.safe_load(ERB.new(File.read(config_file)).result).symbolize_keys : nil
 
     initializer :logstasher, before: :load_config_initializers do |app|
       if LOGSTASHER.present?
         # process common configs
         LogStasher.process_config(app.config.logstasher, LOGSTASHER)
@@ -40,11 +42,11 @@
         LogStasher.setup(config.logstasher) if config.logstasher.enabled
       end
     end
 
     def rack_cache_hashlike?(app)
-      app.config.action_dispatch.rack_cache && app.config.action_dispatch.rack_cache.respond_to?(:[]=)
+      app.config.action_dispatch.rack_cache&.respond_to?(:[]=)
     end
   end
 
   def default_source
     case RUBY_PLATFORM
@@ -53,10 +55,10 @@
       # hostnames that even as real hostnames without the `.local` part,
       # are still unresolvable. One reliable way to get an IP is to
       # get all available IP address lists and use the first one.
       # This will always be `127.0.0.1`.
       address_info = Socket.ip_address_list.first
-      address_info && address_info.ip_address
+      address_info&.ip_address
     else
       IPSocket.getaddress(Socket.gethostname)
     end
   end
 