HWIOS Websocket CMS explained
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HWIOS(http://hwios.org) is a HTML5 websocket CMS, making realtime web-applications easy to develop, and efficient to work with.
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HWIOS Websocket CMS explained
- 1. HW IO S http://hwios.org
- 2. W ebsockets? H TTP transport W ebsocket transport Payload: HTTP Headers + data Unidirectional Connection closes after each response Payload: UTF-8 & Binary data Bidirectional Connecion can be kept open as long as needed Browser Webserver Browser Webserver Browser Webserver Browser Webserver
- 4. Javascript state lost after each page reload
- 5. Document-focussed, temperate emphasis on client-side javascript
- 6. XHR transport for dynamic in-page upd ates
- 7. Large header overhead and TCP connection latency for small updates
- 8. Moderate static payload for non-cached unique links
- 12. Application-focussed, strong emphasis on client-side javascript
- 13. Websocket transport for dynamic in-page updates
- 14. No headers and low latency due to reusage of existing TCP websocket connection
- 15. Heavy static payload for non-cached unique links, due to javascript application files => CDN
- 16. No SEO yet, web-crawlers don't support websocket url's yet
- 17. Bidirectional
- 18. C MS dataflow comparison H TTP CMS data-flow W ebsocket CMS data-flow Page view Render page updates Navbar URL Render main template XHR Page view Render page updates Navbar URL Render Bootstrapping template WS Click URL Click URL Navbar URL
- 20. Build on top of solid frameworks like Twisted, Django and Jquery
- 21. Performance; Twisted async framework and optional speed-boost from PyPy-JIT
- 22. Compatibility; HTML5 browser-engines (Webkit, Gecko and Opera)
- 23. Simplicity; no websocket emulation, just an optional warning for non-compatible browsers
- 24. RRAD; Realtime & Rapid Application Development
- 25. Several realtime application modules Messenger – Chat, Activity, link-invites, Whois Profiles – Basic profile management, websocket login, email registration Wiki – Collaborative multi-user markdown editor, history replay, wiki-graph visualisation Blog – WYSIWYG, image upload/inline resize, comments OpenSim – OpenSimulator virtual world administration Teknon – Remote distributed service management Plasmoids – Collaborative javascript widget creation for moderators Slide – Simple collaborative canvas drawing application
- 26. Realtime framework functionality HRM – HWIOS Remote Messaging, URL-based JSON websocket protocol for function routing Intuitive routing – Uses url-like routing mechanisms both clientside and serverside View push – Updates a user's view when another user modified it's content Activity push – Notifies other users about what's going on in-site Observer events – Trigger serverside functionality on events like connect, disconnect, view-change, etc.
- 28. Why Twisted? Well-tested, flexible and fast Async internet server platform Rich ecosystem: lots of ready-to-use server-technology
- 29. Why Django? Well-documented, maintained and tested Rich ecosystem: ORM, form checking, template system, authentication, groups, etc..
- 30. Why Jquery? Well-documented, maintained and tested Easy DOM-manupilation JQuery UI
- 31. Why HWIOS? Clean code-base Intuitive URL-based routing system Sphinx documentation Sticks to existing and prooven Django view-patterns DRY; two years of R&D for free Lots of existing web-applications LGPL license permits proprietary modules Support; #hwios, #hwios-dev @freenode, mailing-group, community-site ( http://hwios.org ) And more...
- 33. Check out the documentation at http://hwios.org/docs/
- 34. Check out the source-code at https://github.com/os-networks/HWIOS
- 35. Install HWIOS and start writing your own code
- 36. Fork HWIOS and send in pull-requests for your own code
- 37. Contact OS-Networks for licensing or copyright questions at info@os-networks