Class: UU::OS::Application::ErrorHandlingMiddleware

23
24
25

# File 'uu_os_application-server-2.7.3/lib/uu/os/application/error_handling_middleware.rb', line 23

def initialize(app)
  super(app)
end

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

# File 'uu_os_application-server-2.7.3/lib/uu/os/application/error_handling_middleware.rb', line 27

def call(env)
  begin
    return @app.call(env)


  rescue Exception => e
    request = UU::OS::Server::Request.new(env)
    log_error(request.logger, e)
    if raise_errors
      raise e
    end
    if e.kind_of? UU::OS::Server::ImmediateResponse
      return e.response
    end
    error_declared = false
    if e.kind_of?(UU::OS::Application::TimeoutError)
      error_declared = true
    else
      (declared_errors || []).each do |error_class|
        if e.kind_of?(error_class)
          error_declared = true
          break;
        end
      end
    end
    if error_declared
      # Declared error should be passed directly to client.
      status = (e.respond_to?(:kind) && e.kind == UU::OS::IPC::ErrorKind::CLIENT) ? 400 : 500
      return response(status, {content_type: 'application/json'}, e.to_json)
    else
      # Wrap undeclared error to common error.
      if UU::OS::Server::ServerContext.test_or_development_mode?
        common_error = UU::OS::Application::ApplicationError.new(UU::OS::IPC::ErrorKind::SERVER, UU::OS::Application::ErrorCodes::UNEXPECTED_PROBLEM,
                                                                 'Unexpected server error', e)
      else
        # Do not publish internal problem when not in development mode.
        common_error = UU::OS::Application::ApplicationError.new(UU::OS::IPC::ErrorKind::SERVER, UU::OS::Application::ErrorCodes::UNEXPECTED_PROBLEM,
                                                                 'Unexpected server error')
      end
      # Use same exception ID to be able to find exception in logs.
      common_error.instance_variable_set(:@id, e.id)
      return response(500, {content_type: 'application/json'}, common_error.to_json)
    end
  end
end