Class: WebSvr::Handler

Inherits:
Object
  • Object
show all
Defined in:
lib/web_svr/handler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(engine, obj) ⇒ Handler

Set up the web server.



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# File 'lib/web_svr/handler.rb', line 21

def initialize( engine, obj )
  @engine = engine
  @log = @engine.log
  @server_obj = obj
end

Instance Attribute Details

#server_obj ⇒ Object (readonly)

Returns the value of attribute server_obj.



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# File 'lib/web_svr/handler.rb', line 11

def server_obj
  @server_obj
end

Instance Method Details

#file_error_result ⇒ Object

Get a file not found error result.



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# File 'lib/web_svr/handler.rb', line 116

def file_error_result
  return WebSvr::Response.text_response( @engine, 
    "File not found!", WebSvr::ResponseCode::NOT_FOUND )
end

#handle(request) ⇒ Object

Process the request and return a result.



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# File 'lib/web_svr/handler.rb', line 35

def handle request
  @request = request
  page_obj = nil
  route_params = nil

  page, id, route_params = @server_obj.router.page_for_route( @request.path, @request.method )
  @engine.log.debug "Found Page: #{page&.name}" if page

  request.request_params.id = id
  request.request_params.route_params = route_params
  request.request_params.log_id_keys

  if page
    # Run the on_request script with the found page.
    @server_obj.run_on_request( page )

    if page.is_a? Gloo::Objs::FileHandle
      result = handle_file page
    else
      result = handle_page page
      page_obj = page
    end
  else
    result = server_error_result
  end

  return result, page_obj
end

#handle_file(file) ⇒ Object

Handle a request for a static file such as an image.



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# File 'lib/web_svr/handler.rb', line 85

def handle_file file
  pn = @server_obj.asset.path_for_file file

  # Check to make sure it is a valid file
  # return error if it is not
  return file_error_result unless File.exist? pn

  return @server_obj.asset.render_file pn
end

#handle_page(page) ⇒ Object

Handle request for a page. Render the page, with possible redirect.



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# File 'lib/web_svr/handler.rb', line 68

def handle_page page
  result = page.render @request
  if redirect_hard_set?
    result = server_redirect_result
    @engine.running_app.obj.redirect_hard = nil
  elsif redirect_set?
    page = @engine.running_app.obj.redirect
    @log.debug "Redirecting to: #{page.pn}"
    @engine.running_app.obj.redirect = nil
    result = page.render
  end
  return result
end

#redirect_hard_set? ⇒ Boolean

Is there a redirect page set in the running app?

Returns:

  • (Boolean) 


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# File 'lib/web_svr/handler.rb', line 137

def redirect_hard_set?
  return false unless @engine.app_running?
  return @engine.running_app.obj.redirect_hard
end

#redirect_set? ⇒ Boolean

Is there a redirect page set in the running app?

Returns:

  • (Boolean) 


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# File 'lib/web_svr/handler.rb', line 129

def redirect_set?
  return false unless @engine.app_running?
  return @engine.running_app.obj.redirect
end

#server_error_result ⇒ Object

Return a server error result. Use the app’s error if there is one, otherwise a generic message.



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# File 'lib/web_svr/handler.rb', line 104

def server_error_result
  err_page = @server_obj.err_page
  return err_page.render if err_page

  # Last resort, just return a generic error message.
  return WebSvr::Response.text_response( @engine, 
    "Server error!", WebSvr::ResponseCode::SERVER_ERR )
end

#server_redirect_result ⇒ Object

Return a redirect result.



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# File 'lib/web_svr/handler.rb', line 145

def server_redirect_result
  target = @engine.running_app.obj.redirect_hard

  return WebSvr::Response.redirect_response( @engine, target )
end