Class: ActionDispatch::PublicExceptions

Inherits:
Object
  • Object
show all
Defined in:
lib/action_dispatch/middleware/public_exceptions.rb

Overview

# Action Dispatch PublicExceptions

When called, this middleware renders an error page. By default if an HTML response is expected it will render static error pages from the ‘/public` directory. For example when this middleware receives a 500 response it will render the template found in `/public/500.html`. If an internationalized locale is set, this middleware will attempt to render the template in `/public/500.<locale>.html`. If an internationalized template is not found it will fall back on `/public/500.html`.

When a request with a content type other than HTML is made, this middleware will attempt to convert error information into the appropriate response type.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(public_path) ⇒ PublicExceptions

Returns a new instance of PublicExceptions.



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

def initialize(public_path)
  @public_path = public_path
end

Instance Attribute Details

#public_path ⇒ Object

Returns the value of attribute public_path.



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# File 'lib/action_dispatch/middleware/public_exceptions.rb', line 19

def public_path
  @public_path
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/action_dispatch/middleware/public_exceptions.rb', line 25

def call(env)
  request      = ActionDispatch::Request.new(env)
  status       = request.path_info[1..-1].to_i
  begin
    content_type = request.formats.first
  rescue ActionDispatch::Http::MimeNegotiation::InvalidType
    content_type = Mime[:text]
  end
  body = { status: status, error: Rack::Utils::HTTP_STATUS_CODES.fetch(status, Rack::Utils::HTTP_STATUS_CODES[500]) }

  render(status, content_type, body)
end