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Wiki on iTouch

I’ve reduced the springboard of my jailbroken iTouch to a minimalistic Dock consisting only of the iPhone to read and write mails properly (as opposed to having to use webmail on an unbroken iTouch), an RSS-reader to watch other math-blogs and the arXiv (via under Productivity/MobileRSS), the Safari webbrowser and a Finder (via under Productivity/MobileFinder) to launch all other programs, when needed.

To achieve this effect, install (as in the jailbreak-post) all these apps as well as (under Utilities). This allows you to change the icon order on your springboard and dock as well as to toggle the visibility of these icons. Just make sure to have either Finder or Customize visible at all times or it will be difficult to get at the invisible apps (an alternative is to install something called Sunburst).

While the iTouch is great to read, it is harder to type a lot of text into it. Whence the idea of running a Wiki on it (now that we have PHP enabled Apache) and use another computer to create the wiki-pages. For example think of a small database of weblinks with descriptions. Rather than bookmark them one by one in Safari, make wiki-pages for them and use the Search function to get the desired link.

The first problem is that Wikis take a lot of space and you would like to have it installed under /Library/WebServer/Documents to view it with your inbuild Safari browser by typing something like http://localhost/wiki. To see the problem with this, ssh into your iTouch and issue a df command. You will get something like

# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/disk0s1            307200    297188      6940  98% /
devfs                       15        15         0 100% /dev
/dev/disk0s2          15551928    517904  15034024   4% /private/var

That is, you’ve used up almost all disk space of the partition on which the /Library/WebServer/Documents folder resides. So, we first need to move it to the other partition under /private/var, so why not create a Documents-folder under the root-homefolder and link to it?

cd /Library/WebServer
mv Documents /private/var/root/
ln -s /private/var/root/Documents Documents

Check it with http://localhost/ and you should still see your default Apache-page (though it now comes from another location). The next step is to find a PHP-Wiki hat works on the iTouch and doesn’t require a Mysql-database. I’ve tried at least ten without success and then I turned to the Wiki Engines Page and found QWikiWiki which does seem to work. So download it, rename the folder to something you like such as ‘qwiki’ and upload via SFTP to the /var/root/Documents folder of your iTouch and chmod it recursively to 777. If you ever need to change some of the PHP-variables, copy the php.ini from you mac over to the /opt/iphone/bin folder of the iTouch.

Finally, use a browser on your other computer to access the install file of Qwiki on the iTouch. For example, if the IP of iTouch is then type

and follow the online instructions. A few moments later you can type in your first wiki-page!

Some things still need to be done like optimizing the CSS for iTouch while serving the normal CSS for usual computers, but that’ll have to wait…

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