Class: Squash::Rack

Inherits:
Object
  • Object
show all
Defined in:
lib/squash/rack.rb,
lib/squash/rack/version.rb

Constant Summary collapse

VERSION = 
"0.0.1"

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Rack

Instantiates the middleware.

Parameters:

  • app (Array) —

    The middleware stack.



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# File 'lib/squash/rack.rb', line 22

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Hash

Rescues any exceptions thrown downstream, notifies Squash, then re-raises them.

Parameters:

  • env (Hash) —

    The Rack environment.

Returns:

  • (Hash) —

    The Rack result to pass up the stack.



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# File 'lib/squash/rack.rb', line 31

def call(env)

  begin
    result = @app.call(env)
  rescue ::Exception => ex
    env['squash.notified'] = ::Squash::Ruby.notify(ex, squash_rack_data(env))
    raise ex
  end

  result
end

#filter_for_squash(data, kind) ⇒ Object

This method is abstract.

Override this method to implement filtering of sensitive data in the headers, cookies, and rack hashes (see #squash_rack_data). The method signature is the same as ‘Squash::Ruby#filter_for_squash`, but `kind` can also be `:env` for the Rack environment hash.



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# File 'lib/squash/rack.rb', line 49

def filter_for_squash(data, kind)
  data
end

#squash_rack_data(env) ⇒ Hash<Symbol, Object>

Returns The additional information this middleware gives to ‘Squash::Ruby.notify`.

Returns:

  • (Hash<Symbol, Object>) —

    The additional information this middleware gives to ‘Squash::Ruby.notify`.



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# File 'lib/squash/rack.rb', line 55

def squash_rack_data(env)
  data = {
    :headers        => filter_for_squash(request_headers(env), :headers),
    :request_method => env['REQUEST_METHOD'].to_s.upcase,
    :schema         => env['rack.url_scheme'],
    :host           => env['SERVER_NAME'],
    :port           => env['SERVER_PORT'],
    :path           => env['PATH_INFO'],
    :query          => env['QUERY_STRING'],

    :params         => filter_for_squash(env['rack.request.query_hash'], :params),
    :body           => filter_for_squash(env['rack.input'].read, :body),
    :session        => filter_for_squash(env['rack.session'], :session),
    :cookies        => filter_for_squash(env['rack.request.cookie_hash'], :cookies),

    :"rack.env"     => filter_for_squash(env, :rack)
  }

  env['rack.input'].rewind

  data
end