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Class: ActionDispatch::DebugExceptions

Relationships & Source Files
Inherits: Object
Defined in: actionpack/lib/action_dispatch/middleware/debug_exceptions.rb

Overview

This middleware is responsible for logging exceptions and showing a debugging page in case the request is local.

Class Attribute Summary

Class Method Summary

Instance Method Summary

Constructor Details

.new(app, routes_app = nil, response_format = :default, interceptors = self.class.interceptors) ⇒ DebugExceptions

[ GitHub ] 

  


# File 'actionpack/lib/action_dispatch/middleware/debug_exceptions.rb', line 21



def initialize(app, routes_app = nil, response_format = :default, interceptors = self.class.interceptors)
  @app             = app
  @routes_app      = routes_app
  @response_format = response_format
  @interceptors    = interceptors
end


  







Class Attribute Details



  

    .interceptors   (readonly)
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/debug_exceptions.rb', line 14



cattr_reader :interceptors, instance_accessor: false, default: []


  







Class Method Details



  

    .register_interceptor(object = nil, &block)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/debug_exceptions.rb', line 16



def self.register_interceptor(object = nil, &block)
  interceptor = object || block
  interceptors << interceptor
end


  







Instance Method Details



  

    #call(env)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/middleware/debug_exceptions.rb', line 28



def call(env)
  _, headers, body = response = @app.call(env)

  if headers[Constants::X_CASCADE] == "pass"
    body.close if body.respond_to?(:close)
    raise ActionController::RoutingError, "No route matches [#{env['REQUEST_METHOD']}] #{env['PATH_INFO'].inspect}"
  end

  response
rescue Exception => exception
  request = ActionDispatch::Request.new env
  backtrace_cleaner = request.get_header("action_dispatch.backtrace_cleaner")
  wrapper = ExceptionWrapper.new(backtrace_cleaner, exception)

  invoke_interceptors(request, exception, wrapper)
  raise exception unless wrapper.show?(request)
  render_exception(request, exception, wrapper)
end