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CloudPipe changes for today

Sunday, December 27, 2009 by Dave Winer.

More work on CloudPipe. Yesterday's notes herePermalink to this paragraph

Getting some feedback finally, though some of it has been bitter and condescending.  Permalink to this paragraph

Please everybody. Be respectful of everyone, including yourself.  Permalink to this paragraph

And remember: Tis the season to be jolly! Permalink to this paragraph

Peace on earth, goodwill to men. Ignore the grouchyness and try to find the substance. Even better if people self-edit and leave out the michegas. Permalink to this paragraph

Now on to the substance... Permalink to this paragraph

1. There is support for not normalizing the items, and that is still the plan. It's true, there's a lot of code out there that understands all the varieties of RSS and Atom. I've been saying that all along! A picture named sidesmiley.gif Permalink to this paragraph

The reason to do fatPing is to start a bootstrap that makes everything more efficient. In this, the leadership will come from the content systems and the aggregators. Permalink to this paragraph

2. I've made a change to the body of the fatPing element. Instead of including the XML elements inline, I encode the text and pass it as CDATA. This means that it will make it through XML parsers that care about namespaces being declared. An example, I was passing through an item from the TechCrunch feed (they support rssCloud, btw) and they have elements from the DC namespace. My packet doesn't declare this namespace, so the Firefox XML parser declares it invalid (they're right about that). I have to encode the text because they might include CDATA elements, and that would break the XML. Let's see if this works! A picture named sidesmiley.gif Permalink to this paragraph

3. The point has been raised that there is no "standard" way to include a <cloud> element in Atom feeds. As I said in the comments, I will not be the person to dictate that, or suggest a way to do it, even mildly. I've learned that Atom is a 300-degree stove. When I touch it I get burned. However, I am the author of an aggregator that consumes Atom feeds. If you are the author of software that creates Atom feeds, you could (just saying hypothtetically) create a namespace that contains the <cloud> element in it, as spec'd by RSS 2.0, and include it in your feed. If you told me about it, I could implement support for it in River2. That way we keep it all among implementors. There can be no doubt that you have the right to do that, and I have the right to support it. If anyone wants to get grouchy and irritable, let em! A picture named sidesmiley.gif Permalink to this paragraph

4. To notify the CloudPipe server what feeds you want realtime notification on, send a POST to the same endpoint you call for the long poll (instead of a GET). The body of the POST is the OPML text for the feeds you want to follow. The server returns immediately while it processes the request.  Permalink to this paragraph

5. The biggest development of the day is the draft spec is now ready for review. Please read the "Document Status" section carefully and believe what it says. Permalink to this paragraph

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A picture named dave.jpgDave Winer, 54, pioneered the development of weblogs, syndication (RSS), podcasting, outlining, and web content management software; former contributing editor at Wired Magazine, research fellow at Harvard Law School, entrepreneur, and investor in web media companies. A native New Yorker, he received a Master's in Computer Science from the University of Wisconsin, a Bachelor's in Mathematics from Tulane University and currently lives in Berkeley, California.

"The protoblogger." - NY Times.

"The father of modern-day content distribution." - PC World.

One of BusinessWeek's 25 Most Influential People on the Web.

"Helped popularize blogging, podcasting and RSS." - Time.

"The father of blogging and RSS." - BBC.

"RSS was born in 1997 out of the confluence of Dave Winer's 'Really Simple Syndication' technology, used to push out blog updates, and Netscape's 'Rich Site Summary', which allowed users to create custom Netscape home pages with regularly updated data flows." - Tim O'Reilly.


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