three months agoUpdate to addSizes (v0.3)

I have released version 0.3 of the addSizes script with various fixes and more file types. The code now looks at links to documents of the following types: pdf, doc, zip, mp3, ogg, m4u, jpg, png, swf. If you are using the script and want to add your own, feel free—let me know though, I would be interested to see how people use it.

Thanks to Marko Mrdjenovič for pointing out in a comment on the previous entry that I should in fact be using encodeURIComponent() instead of encodeURI() before sending the URL to json-head. It turns out encodeURI() assumes it is given an entire URL and does not escape & and other reserved characters.encodeURIComponent() on the other hand makes no such assumption and will escape all characters in the given string. Since json-head needs to take a fully escaped URI in order to get the head data, encodeURIComponent() should work better.

In the original entry I should have stated more explicitly that this script will only work properly with files json-head can see. They need to be publicly visible on the web, ie files behind https may not behave as expected. I am still working on methods of getting around the issue with protected files.

A major fix to this version is that the code now works with relative file paths. Bizarly the issue relates to how I was getting the href of the link. With the previous versions I was using jQuery to get the href, $(this).attr('href'), for relative file paths this returns the exact value, eg "media/test.doc". Changing this to use this.href, fixes the issue as it actually interpretes the link to get the absolute URL. Magic.

The code is released under the BSD license.