Remoting Architecture

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This page is intended to summarize basic architecture concepts for Firebug (and Firebug extensions) remote capabilities (such as remote debugging or remote HTTP monitoring).

Resources

Proxy

The proxy object represents a connection between a panel (front end) and a module (back end).

The proxy has essentially two implementations:

  • Local - direct API calls
  • Remote - communication over TCP/IP protocol

Panel-proxy-module.png

  • Panel (a view) should never use Module (a service) directly
  • The communication should always be done through the current proxy
  • Each Panel should have its own proxy that implements API of the remote module (service)
  • There can be also proxy objects used by non-panel objects, e.g. the Profiler

Here is a more detailed diagram with local and remote proxies.

Local-and-remote-proxies.png

  • Panel object at the top is referencing its proxy object
  • The proxy implementation can be local or remote
  • Local proxy uses direct API calls (in process) and asynchronous callbacks
  • Remote proxy uses TCP/IP connection to communicate with the back-end using JSON packets
  • The remote communication is based on RDP
  • The server side implements Actor, which is responsible for communication with specific proxy
  • The actor is finally consuming back-end Module (service) API


Connection

TODO

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