Simon Willison’s Weblog

Blogmarks tagged http in 2007

Filters: Type: blogmark × Year: 2007 × http ×

The backdooring of SquirrelMail. A SquirrelMail developer’s account was compromised and used to insert a backdoor: the other developers initially missed the hole because it used $_SERVER[’HTTP_BASE_PATH’], which can be set with a Base-Path: HTTP header. # 28th December 2007, 11:40 pm

Techniques for safely consuming external HTTP on demand? I asked this question on yesterday and got some really insightful answers, including Joe Stump from Digg describing how Digg Images uses Danga’s Gearman worker queue. # 15th December 2007, 12:29 pm

Two HTTP Caching Extensions. stale-while-revalidate serves cached content even while a refresh has been triggered and is currently being pulled in to the cache; stale-if-error serves cached content if a service has gone down. # 12th December 2007, 11:23 am

A Taxonomy of Event- and REST-based Comet. Kris Zyp describes a conceptual model for Comet messages based on REST semantics (so you can send a PUT referencing a specific URI down to a client to represent an idempotent state change). # 21st November 2007, 8:18 pm

Orbited: The Orbit Event Daemon. HTTP daemon designed for long-lasting comet connections, written in Python using pyevent on top of libevent. # 9th November 2007, 11:01 pm

Http-https transitions and relative URLs. Finally, a reason to use those weird protocol-relative URLs (// and the like). # 18th October 2007, 11:57 am

ETags, ETags, ETags. They’re no magic bullet. # 7th August 2007, 2:51 pm

YSlow. New extension for Firebug (yes, an extension on top of another extension) from the Yahoo! performance team which provides improved performance measurement tools and optimisation advice. # 25th July 2007, 4:48 am

Return of the HTTP overhead delay. Christian proposes a neat way of improving page performance, by delaying non-essential images such as avatars until after the rest of the page has loaded. # 11th July 2007, 3:12 pm

The State of Proxy Caching. If you’ve always wondered exactly what intermediate proxies are going to do to your carefully constructed Web application, here’s your answer. # 21st June 2007, 2:18 pm

Avoid IE Brokenness When using Vary and Attachments (via) Django middleware that works around a bug in IE where external applications fail to load content that was served with a Vary header. # 9th April 2007, 9:41 am

The RADAR Architecture: RESTful Application, Dumb-Ass Recipient (via) Dave Thomas points out that REST expects smart clients, but browsers are dumb (only really support POST and GET). His suggested fix is to build a pure REST service and then drop in a server-side application proxy that sits between the browser and the REST backend. # 2nd April 2007, 10:42 am

Content delivery system design mistakes. Collection of tips for optimising Web server performance. Mentions lighttpd/nginx, Keep-Alive, expires headers, noatime and more. # 15th February 2007, 11 am