Module: Deas::SinatraApp

Defined in:
lib/deas/sinatra_app.rb

Constant Summary collapse

DEFAULT_ERROR_RESPONSE_STATUS = 
500.freeze
STANDARD_ERROR_CLASSES =

these are standard error classes that we rescue, handle and don’t reraise in the rack app, this keeps the app from shutting down unexpectedly; ‘LoadError`, `NotImplementedError` and `Timeout::Error` are common non `StandardError` exceptions that should be treated like a `StandardError` so we don’t want one of these to shutdown the app

[
  StandardError,
  LoadError,
  NotImplementedError,
  Timeout::Error
].freeze

Class Method Summary collapse

Class Method Details

.new(server_config) ⇒ Object 



26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
 
# File 'lib/deas/sinatra_app.rb', line 26

def self.new(server_config)
  # This is generic server initialization stuff.  Eventually do this in the
  # server's initialization logic more like Sanford does.
  server_config.validate!
  server_data = ServerData.new({
    :error_procs            => server_config.error_procs,
    :before_route_run_procs => server_config.before_route_run_procs,
    :after_route_run_procs  => server_config.after_route_run_procs,
    :logger                 => server_config.logger,
    :router                 => server_config.router,
    :template_source        => server_config.template_source
  })

  Sinatra.new do
    # unifying settings - these are used by Deas so extensions can have a
    # common way to identify these low-level settings.  Deas does not use
    # them directly
    set :environment, server_config.env
    set :root,        server_config.root

    # static settings - Deas doesn't care about these anymore so just
    # use some intelligent defaults
    set :views,            server_config.root
    set :public_folder,    server_config.root
    set :default_encoding, 'utf-8'
    set :method_override,  false
    set :reload_templates, false
    set :static,           false
    set :sessions,         false

    # Turn this off b/c Deas won't auto provide it.  We may add an extension
    # gem or something??
    disable :protection

    # raise_errors and show_exceptions prevent Deas error handlers from being
    # called and Deas' logging doesn't finish. They should always be false.
    set :raise_errors,     false
    set :show_exceptions,  false

    # turn off logging, dump_errors b/c Deas handles its own logging logic
    set :dump_errors,      false
    set :logging,          false

    server_config.middlewares.each{ |use_args| use *use_args }

    # routes
    server_config.routes.each do |route|
      send(route.method, route.path) do
        begin
          route.run(
            server_data,
            RequestData.new({
              :request    => request,
              :response   => response,
              :route_path => route.path,
              :params     => params
            })
          )
        rescue *STANDARD_ERROR_CLASSES => err
          request.env['deas.error'] = err
          response.status = DEFAULT_ERROR_RESPONSE_STATUS
          ErrorHandler.run(request.env['deas.error'], {
            :server_data   => server_data,
            :request       => request,
            :response      => response,
            :route_path    => request.env['deas.route_path'],
            :handler_class => request.env['deas.handler_class'],
            :handler       => request.env['deas.handler'],
            :params        => request.env['deas.params'],
            :splat         => request.env['deas.splat']
          })
        end
      end
    end

    not_found do
      # `self` is the sinatra call in this context
      if env['sinatra.error']
        env['deas.error'] = if env['sinatra.error'].instance_of?(::Sinatra::NotFound)
          Deas::NotFound.new("#{env['REQUEST_METHOD']} #{env['PATH_INFO']}").tap do |e|
            e.set_backtrace(env['sinatra.error'].backtrace)
          end
        else
          env['sinatra.error']
        end
        ErrorHandler.run(env['deas.error'], {
          :server_data   => server_data,
          :request       => request,
          :response      => response,
          :route_path    => request.env['deas.route_path'],
          :handler_class => request.env['deas.handler_class'],
          :handler       => request.env['deas.handler'],
          :params        => request.env['deas.params'],
          :splat         => request.env['deas.splat']
        })
      end
    end

  end
end