I’ve created updated Koha appliances running Koha 3.8. I’ve switched from compressed VMDK images to OVF files instead. This should make setting up the appliance much easier.
I’ve been working on a compete rewrite of Libki to improve it’s performance, aesthetics, and ease of installation. The client will be written in C++/Qt4, which gives it a nice look that can also be skinned to look native to any given OS. I’m still contemplating the possibilities for the web-based administration interface. I hope to make it fully AJAX. I hope to take advantage of Web Sockets if I can. Development has been put on short term hold while we roll out our Koha update, but expect to see more on this soon!
Screenshots of the Work-In-Progress Client:
Here is a bit of code to convert an array of associative arrays into a CSV file. The first line will be a header line of the key values:Continue reading
Here is a quick and easy way to save and restore hard disk images using dd, netcat and gzip.
To Save An Image:
On the server: nc -l 7000 | dd of=Output.img.gz
On the client: dd if=/dev/sdb | gzip -9 | nc 126.96.36.199 7000
On the client: nc -l -p 7000 | gzip -dc | dd of=/dev/sda
On the server: dd if=Output.img.gz | nc 188.8.131.52 7000
I just boot the client using an Ubuntu live-cd, all the neccessary tools are already installed. I store my images gzipped to save space, I just copied a 40 GB disk and the image file compressed down to 4.4 GB!
I’m still making alot of updates to Libki lately, the newest feature is a ‘Clients’ view. On the Clients page of the web administration, you can see all the machines running the Libki client, and whether or not someone is logged into the client. I imagine this will be far more useful than limiting the User’s view to only logged in users.
I will be rolling this version out in production at the Linesville Public Library, most likely tomorrow.
In addition, a reservations system will be coming soon. It is in the planning stages. If anyone has any suggestions for features, don’t hesitate to let me know!
I’ve been hard at work getting Libki into a form that is more suitable for the general public to use. First, I’ve moved the code from SourceForge’s subversion repo to GitHub, at least for now.
I’ve finished porting the code from using PostgreSQL to MySQL. In addition I’ve been working on the startup scripts that disable hotkeys that could be used to bypass LibKi on Windows clients. These scripts were made with AutoHotKey, a wonderful piece of FOSS that was designed for creating Windows shortcuts, but has grown so fast it’s possible to write complete graphical programs using only an AutoHotKey script. These scripts are located in the libki/client/src/windows directory, as they only function on Windows. There are four, each one is slightly different to better suit individual needs.
- libki-keylock – Disables alt-tab, ctrl-alt-del, and many other commands that can be used to gain unauthorised access. With this version the key combo ctrl-alt-shift-L will pop up a password dialog that can disable the script. The password is contained in the file /etc/libki/keylock
- libki-keylock-nopwd – The same script without the password unlock feature.
- libki-keylock-startbutton – The same as libki-keylock, but this version also disables the start button, so only shortcuts on the desktop can be used to launch programs.
- libki-keylock-startbutton-nopwd – The same as above, but without the password unlock feature.
For each of these scripts, there is an executable, and a corrospondingÂ .ahk file which contains the original AutoHotKey script code in case someone would wish to modify the scripts further.
That’s all for now. More updates will be coming soon.
I’ve decided to avoid the messy business of setting up my own Koha git repository ( at least for now ). Instead, I’ve set up a Github account here.Â I’ve configured github to update my twitter account ( kylemhall ) each time I make a push, so if you want to track my changes you can watch that. I may even set up automatic posting to this blog. I will be continuously rebasing from git.koha.org and pushing those updates so it will be up to date with the latest changes from the official git repository.
Here’s a interesting article comparing and contasting the Koha, Evergree and Rome ILS systems. I stumbled upon it because it happens to link to my Koha VMWare Appliance page. Linky.
It’s been awhile since I posted last so I thought I’d let everyone know what I’m doing development-wise involving Koha 3
We are about 5 weeks out from the point where we have to be ready to switch over from using the dev_week development version of Koha to 3 which is based on dev_week, but with many differences. To get ready, I’ve had to port a number of features from dev_week to Koha 3. These include:
- Porting my Reserves System updates from dev_week to Koha 3
- Porting my Rotating Collections system from dev_week to Koha 3
- Adding the ability to pay fines by an amount paid, rather than paying individual fines one at a time.
- Porting my ‘Fines On Return’ system where actual fines are not generated until an item is checked in. I think it’s a great system and our librarians definitely prefer it to Koha’s standard fines system.
- Porting my Clubs & Services feature from dev_week to Koha 3. This is the largest and complex addition to Koha I have made, and I’m done with the basic feature, but I haven’t sent a patch yet because I’d like to add some more bells & whisles to it first.
Hopefully I’ll have a public Git repository up soon so anyone can pull these updates from me instead of waiting for them to make it into Koha 3 proper.
In addition, I’ve set up a new website for KUDOS, the US based Koha Users & Developers Group. It’s located at kudos.koha.org.