Class: Sinatra::ShowExceptions

Inherits:
Rack::ShowExceptions
  • Object
show all
Defined in:
lib/sinatra/show_exceptions.rb

Overview

Sinatra::ShowExceptions catches all exceptions raised from the app it wraps. It shows a useful backtrace with the sourcefile and clickable context, the whole Rack environment and the request data.

Be careful when you use this on public-facing sites as it could reveal information helpful to attackers.

Constant Summary collapse

@@eats_errors = 
Object.new

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ ShowExceptions

Returns a new instance of ShowExceptions.



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# File 'lib/sinatra/show_exceptions.rb', line 18

def initialize(app)
  @app = app
end

Class Method Details

.flush ⇒ Object 



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# File 'lib/sinatra/show_exceptions.rb', line 14

def @@eats_errors.flush(*) end

.puts ⇒ Object 



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# File 'lib/sinatra/show_exceptions.rb', line 16

def @@eats_errors.puts(*) end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/sinatra/show_exceptions.rb', line 22

def call(env)
  @app.call(env)
rescue Exception => e
  errors = env['rack.errors']
  env['rack.errors'] = @@eats_errors

  if prefers_plain_text?(env)
    content_type = 'text/plain'
    body = dump_exception(e)
  else
    content_type = 'text/html'
    body = pretty(env, e)
  end

  env['rack.errors'] = errors

  [
    500,
    {
      'content-type' => content_type,
      'content-length' => body.bytesize.to_s
    },
    [body]
  ]
end

#template ⇒ Object 



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# File 'lib/sinatra/show_exceptions.rb', line 48

def template
  TEMPLATE
end