Class: LockBox

Inherits:
Object
  • Object
show all
Includes:
HTTParty, LockBoxCache
Defined in:
lib/lockbox_middleware.rb

Constant Summary collapse

@@config = 
nil

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ LockBox

Returns a new instance of LockBox.



38
39
40
41
 
# File 'lib/lockbox_middleware.rb', line 38

def initialize(app)
  @app = app
  @cache = LockBoxCache::Cache.new
end

Class Method Details

.config ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
# File 'lib/lockbox_middleware.rb', line 12

def self.config
  return @@config if @@config
  if defined?(Rails)
    root_dir = Rails.root
  else
    root_dir = '.'
  end
  yaml_config = YAML.load_file(File.join(root_dir,'config','lockbox.yml'))
  return_config = {}
  environment = Rails.env if defined? Rails
  environment ||= ENV['RACK_ENV']
  environment ||= 'test'
  if !environment.nil?
    if !yaml_config['all'].nil?
      $stderr.puts "The 'all' environment is deprecated in lockbox.yml; use built-in yaml convention instead."
      return_config = yaml_config['all']
      return_config.merge!(yaml_config[environment])
    else
      return_config = yaml_config[environment]
    end
  end
  @@config = return_config
end

Instance Method Details

#auth_response(api_key, env = {}) ⇒ Object 



87
88
89
90
91
92
93
94
95
96
97
98
99
 
# File 'lib/lockbox_middleware.rb', line 87

def auth_response(api_key, env={})
  if api_key != 'hmac'
    cached_auth = auth_cache(api_key)
    if !cached_auth.nil?
      # currently we don't cache forward headers
      return {:authorized => cached_auth, :headers => {}}
    end
  end
  auth_response = self.class.get("/authentication/#{api_key}", {:headers => auth_headers(env), :request => {:application_name => LockBox.config['application_name']}})
  authorized = (auth_response.code == 200)
  cache_response_if_allowed(api_key, auth_response) if authorized
  {:authorized => authorized, :headers => response_headers(auth_response)}
end

#call(env) ⇒ Object 



43
44
45
 
# File 'lib/lockbox_middleware.rb', line 43

def call(env)
  dup.call!(env)
end

#call!(env) ⇒ Object 



53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
 
# File 'lib/lockbox_middleware.rb', line 53

def call!(env)
  #attempt to authenticate any requests to /api
  request = Rack::Request.new(env)
  path_protected = false
  protected_paths.each do |path|
    if env['PATH_INFO'] =~ path
      path_protected = true
      authorized = false
      key = request['key']
      if key.blank?
        key = 'hmac'
      end
    
      auth = auth_response(key,env)
      authorized = auth[:authorized]
      auth_headers = auth[:headers]
    
      if authorized
        app_response = @app.call(env)
        app_headers = app_response[1]
        response_headers = app_headers.merge(auth_headers)
        return [app_response[0], response_headers, app_response[2]]
      else
        message = "Access Denied"
        return [401, {'Content-Type' => 'text/plain', 'Content-Length' => "#{message.length}"}, [message]]
      end
    end
  end
  unless path_protected
    #pass everything else straight through to app
    return @app.call(env)
  end
end

#protected_paths ⇒ Object 



47
48
49
50
51
 
# File 'lib/lockbox_middleware.rb', line 47

def protected_paths
  self.class.config['protect_paths'].map do |path|
    Regexp.new(path)
  end
end