Rack Content-Type Validator middleware

Rack::ContentTypeValidator it's a rack middleware to validate the header Content-Type of requests.

What does it do?

When a ruby webserver receives a request, it validates the Content-Type. Whenever validation fails, the middleware sends a response to client with 415 (Unsupported Media Type) HTTP error.

Usage

Rails apps

In your Gemfile:

gem 'rack-content_type_validator'

In your environment.rb:

require 'rack/content_type_validator'
config.middleware.use Rack::ContentTypeValidator

Non-Rails apps

Just 'use Rack::ContentTypeValidator' as any other middleware.

Configuration Examples

POST requests at the path '/posts' should be 'application/json':

config.middleware.use Rack::ContentTypeValidator, :post, '/posts', {:mime_type => "application/json"}

POST and PUT requests at the path '/users' should be 'application/json':

config.middleware.use Rack::ContentTypeValidator, [:post, :put], '/users', {:mime_type => "application/json"}

POST requests at the path '/pages' should be 'application/xml' with charset UTF-8:

config.middleware.use Rack::ContentTypeValidator, :post, '/pages', {:mime_type => "application/xml", :charset => "UTF-8"}

PUT requests at the path '/pages' should have charset ISO-8859-1:

config.middleware.use Rack::ContentTypeValidator, :put, '/pages', {:charset => "ISO-8859-1"}

You can pass a Regexp on path:

config.middleware.use Rack::ContentTypeValidator, :put, /\/pages\/.+/, {:charset => "ISO-8859-1"}

You can configure more the one:

config.middleware.use Rack::ContentTypeValidator, :post, '/posts', {:mime_type => "application/json"}
config.middleware.use Rack::ContentTypeValidator, :put, /\/posts\/.+/, {:mime_type => "application/json"}

Report bugs and suggestions

• Issue Tracker

Authors

• Lucas Fais
• Marcelo Manzan

References

• RFC 2616
• Rails on Rack