initial commit

.gitignore

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+.idea/
+.byebug_history
+*.gem
+*.log
+spec/integration/apps/rails_app/log
+Gemfile.lock
+coverage

.rubocop.yml

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+AllCops:
+  TargetRubyVersion: 2.3
+
+Metrics/LineLength:
+  Max: 120
+
+Style/Documentation:
+  Enabled: false
+
+Style/FrozenStringLiteralComment:
+  Enabled: false

.ruby-version

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+2.3.1

CODE_OF_CONDUCT.md

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+# Contributor Code of Conduct
+
+As contributors and maintainers of this project, and in the interest of
+fostering an open and welcoming community, we pledge to respect all people who
+contribute through reporting issues, posting feature requests, updating
+documentation, submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free
+experience for everyone, regardless of level of experience, gender, gender
+identity and expression, sexual orientation, disability, personal appearance,
+body size, race, ethnicity, age, religion, or nationality.
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery
+* Personal attacks
+* Trolling or insulting/derogatory comments
+* Public or private harassment
+* Publishing other's private information, such as physical or electronic
+  addresses, without explicit permission
+* Other unethical or unprofessional conduct
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+By adopting this Code of Conduct, project maintainers commit themselves to
+fairly and consistently applying these principles to every aspect of managing
+this project. Project maintainers who do not follow or enforce the Code of
+Conduct may be permanently removed from the project team.
+
+This code of conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting a project maintainer at d.efimov@fun-box.ru. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. Maintainers are
+obligated to maintain confidentiality with regard to the reporter of an
+incident.
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 1.3.0, available at
+[http://contributor-covenant.org/version/1/3/0/][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/3/0/

Gemfile

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+source 'https://rubygems.org'
+
+gemspec

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2016 d.efimov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# Esplanade
+
+This gem helps you validate the request and response documentation API Blueprint.
+
+
+If the request to the server will be invalid tomogram, it will return a response with a 400 status and the body of the error.
+If the server's response will be invalid tomogram, it will return a response with 500 status and the body of the error.
+
+An example of an error body
+
+```ruby
+{
+  "error": [
+      "The property '#/' did not contain a required property of 'login' in schema deee53ed-f917-5f2f-bccf-0b8af3b749c7",
+      "The property '#/' did not contain a required property of 'password' in schema deee53ed-f917-5f2f-bccf-0b8af3b749c7"
+    ]
+}
+```
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'esplanade'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install esplanade
+
+## Usage
+
+### Rails
+
+config/application.rb
+
+```ruby
+require 'esplanade'
+```
+
+### Rake
+
+config/application.rb
+
+```ruby
+require 'esplanade'
+config.middleware.use Esplanade::Middleware
+```
+
+## Config
+
+### tomogram
+
+This gem takes a simplified format json convert from API Blueprint which we have called API Tomogram.
+
+If in your project you are using the gem tomograph, then define the configuration you are not required.
+
+```ruby
+Esplanade.configure do |config|
+  config.tomogram = 'tomogram.json'
+end
+```
+
+### skip_not_documented
+
+Default true.
+
+### validation_requests
+
+Default true.
+
+### validation_response
+
+Default true.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).

Rakefile

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+require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec)
+
+task default: :spec

bin/console

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+#!/usr/bin/env ruby
+
+require 'bundler/setup'
+require 'esplanade'
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require 'irb'
+IRB.start

bin/setup

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+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here

esplanade.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'esplanade/version'
+
+Gem::Specification.new do |spec|
+  spec.name           = 'esplanade'
+  spec.version        = Esplanade::VERSION
+  spec.authors        = ['d.efimov']
+  spec.email          = ['d.efimov@fun-box.ru']
+
+  spec.summary        = 'Validate requests and responses against API Blueprint specifications'
+  spec.license        = 'MIT'
+
+  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  spec.bindir        = 'exe'
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ['lib']
+
+  spec.add_runtime_dependency 'multi_json', '~> 1.11', '>= 1.11.1'
+  spec.add_runtime_dependency 'json-schema', '~> 2.6', '>= 2.6.2'
+  spec.add_runtime_dependency 'tomogram_routing', '~> 0.1', '>= 0.1.0'
+  spec.add_development_dependency 'bundler', '~> 1.12'
+  spec.add_development_dependency 'rake', '~> 10.0'
+  spec.add_development_dependency 'byebug', '~> 8.2', '>= 8.2.1'
+  spec.add_development_dependency 'rspec', '~> 3.4', '>= 3.4.0'
+  spec.add_development_dependency 'rubocop', '~> 0.42', '>= 0.42.0'
+  spec.add_development_dependency 'simplecov', '~> 0.11', '>= 0.11.2'
+end

lib/esplanade.rb

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+require 'esplanade/middleware'
+require 'esplanade/configuration'
+require 'esplanade/request'
+require 'esplanade/request/body'
+require 'esplanade/request/error'
+require 'esplanade/response'
+require 'esplanade/response/body'
+require 'esplanade/response/error'
+require 'esplanade/railtie' if defined?(Rails)
+require 'tomogram_routing'
+
+module Esplanade
+  class << self
+    def configure
+      yield configuration
+    end
+
+    def configuration
+      @configuration ||= Configuration.new
+    end
+  end
+end

lib/esplanade/configuration.rb

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+module Esplanade
+  class Configuration
+    attr_accessor :tomogram,
+                  :skip_not_documented,
+                  :validation_requests,
+                  :validation_response
+
+    def initialize
+      @skip_not_documented = true
+      @validation_requests = true
+      @validation_response = true
+    end
+  end
+end

lib/esplanade/middleware.rb

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+require 'yaml'
+
+module Esplanade
+  class Middleware
+    class Exit < RuntimeError; end
+    class ResponseNotDoc < RuntimeError; end
+
+    def initialize(app)
+      @app = app
+      @tomogram = TomogramRouting::Tomogram.craft(Esplanade.configuration.tomogram)
+    end
+
+    def call(env)
+      valid!(env)
+    rescue Request::NotDocumented
+      Request::Error.not_documented
+    rescue Response::NotDocumented
+      Response::Error.not_documented
+    rescue Request::Unsuitable => e
+      Request::Error.unsuitable(e.message)
+    rescue Response::Unsuitable => e
+      Response::Error.unsuitable(e.message)
+    end
+
+    def valid!(env)
+      request = Request.new(env, @tomogram)
+      request.valid! if request.validate?
+      status, headers, body = @app.call(env)
+      response = Response.new(status, body, request.schema)
+      response.valid! if response.validate?
+      [status, headers, body]
+    end
+  end
+end

lib/esplanade/railtie.rb

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+module Esplanade
+  class Railtie < Rails::Railtie
+    initializer 'esplanade.insert_middleware' do |app|
+      app.config.middleware.use Esplanade::Middleware
+    end
+  end
+end

lib/esplanade/request.rb

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+require 'json-schema'
+
+module Esplanade
+  class Request
+    attr_accessor :path, :method, :body, :schema
+
+    class Unsuitable < RuntimeError; end
+    class NotDocumented < RuntimeError; end
+
+    def initialize(env, tomogram)
+      @method = env['REQUEST_METHOD']
+      @path = env['PATH_INFO']
+      @body = Body.craft(env)
+      @schema = tomogram.find_request(method: @method, path: @path)
+      raise NotDocumented unless schema || Esplanade.configuration.skip_not_documented
+      self
+    end
+
+    def error
+      JSON::Validator.fully_validate(@schema['request'], @body)
+    end
+
+    def valid!
+      raise Unsuitable, error unless error.empty?
+    end
+
+    def validate?
+      @schema && Esplanade.configuration.validation_requests
+    end
+  end
+end

lib/esplanade/request/body.rb

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+module Esplanade
+  class Request
+    class Body < Hash
+      private_class_method :new
+
+      def self.craft(env)
+        params_string = env['rack.input'].read
+        params_hash = {}
+        params_hash = MultiJson.load(params_string) unless params_string == ''
+        new.merge(params_hash)
+      end
+    end
+  end
+end

lib/esplanade/request/error.rb

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+module Esplanade
+  class Request
+    class Error
+      def self.unsuitable(message)
+        status = '400'
+        headers = { 'Content-Type' => 'application/json; charset=utf-8' }
+        body = [MultiJson.dump(error: [message[2..-3]])]
+        [status, headers, body]
+      end
+
+      def self.not_documented
+        status = '400'
+        headers = { 'Content-Type' => 'application/json; charset=utf-8' }
+        body = [MultiJson.dump(error: ['Not documented'])]
+        [status, headers, body]
+      end
+    end
+  end
+end