HN Explorer

Ask HN: Screenshot Saturday

13 points by screenshot ↗ HN
Exactly 300 days ago we did the first installment of Screenshot Saturday. I think it's time to share some more of our current projects. Please post a screenshot and a few words of explanation about what you have been working on for the past week.

2 comments

[ 296 ms ] story [ 3307 ms ] thread
logn
Lately I've been making a Selenium WebDriver implementation for Java's built-in WebKit.

I spent an absurd amount of time trying to figure out how to let multiple instances of the browser operate concurrently without affecting each other. E.g., if a resource request is in progress, then a second request to the same resource simply uses the output of the first (which is a problem if it's stateful output for the user).

After reading most of the JavaFX and WebKit codebases I realized that isolation is not possible without recompiling a modified WebKit. So then I set about figuring out how to isolate Java code. But most solutions are half-baked, are only academic research projects, or require a special JVM.

However, if you load JavaFX along with native libs into a classloader for each browser instance, then they're effectively isolated. The downside is that objects of the same class have completely different un-castable types if they're from different classloaders.

So then I needed to use reflection to lookup classnames at runtime and resolve them dynamically.

Anyhow, http://i.imgur.com/ovxVHW9.png

https://github.com/MachinePublishers/jBrowserDriver

gesman
Working on analytics app to visualize web server HTTP traffic across hosted web sites to discover "unhealthy" patterns and security attacks:

http://www.mensk.com/#prettyPhoto/0/

Next iteration will include ability to ban IP addresses.