Sunday, 23 November 2014

Chrome OS is now running under a 64 bit CPU

While following the Node and NPM on Chromebook (Chrome OS) blog on how to set up Node, I had the same problem as some of the users that posted a comment. I was getting an cannot execute binary file error when trying to run the downloaded binary files from Archlinux.

This can be confirmed by running uname -m (one of the ways to check if linux OS is 32 bit or 64 Bit) which should return x86_64.

This means that the links provided on that link should be changed from:

Running git, node, python,make and levelgraph on Chrome OS (inside a ChromeBook)

After creating the Chrome REPL extension, I was curious if it would run under Chrome OS and ChromeBook. To try it out, I was able to get my hands on a Dell ChromeBook 11, and It was nice to see that it worked perfectly.

While using the ChromeBook I was thinking that if I was able to run (tools like) git, node and LevelGraph (which is needed for my current dev focus at SI: TM_Graph_DB) I would have a really portable development environment (specially for running longish batches of Unit Tests).

After a bit of Linux fiddling, I was able to get it working and here is a screenshot of the final result:

Friday, 21 November 2014

Chrome REPL (first O2 Platform Chrome Extension)

I was doing some browser automation and it was driving crazy the fact that I was not able easily write code directly on Chrome. Basically what I needed was a Chrome REPL, and since after looking for one, I couldn't find one that suited my needs, I decided to write one :)

It was quite easy to write (about 1 day's work) since Chrome is quite an easy platform to develop for.

You can get this extension from the Chrome Web Store or from the Chrome-REPL Github repo (you can install from the code if you enable 'developer mode')

Here is how to install it from the Web Store and run a couple of the provided test scripts

Saturday, 15 November 2014

Question about ESAPI for .NET

I was asked recently about 'ESAPI for .NET?' (by XXX, who is an SI customer) and here was my reply


Hi, unfortunately there isn't a simple answer/solution for your question

I would definitely not recommend of using any of the ESAPI libraries, specially the .NET since that is not even in a workable state.

The best security controls out there are actually the Microsoft ones, which when used in secure ways, do provide a lot of security (for example Razor now encodes by default which does a lot to prevent XSS). On the topic of XSS, the Microsoft AntiXSS library is really good, and is now part of .NET 4.5.

FluentNode API - please help

I've been working on an Fluent API for node which you can get from

It is basically a large number of JS prototype functions (written in coffee-script) which try to simplify node development, improve developer productivity and make the code more readable.

It's still early days, but there are already a good number of APIs in there (and all are covered by UnitTests)

I would love go get some feedback on the current APIs (and other APIs to add)

Reddit thread