Oxpecker

Sandboxed javascript from ruby. Note: This is still super alpha, so don't complain.

Cool

I know, right? Anyway, Oxpecker is basically an interface to Mozilla's Rhino with some security precautions set in place. Oxpecker also cleans up some of the Java exceptions and return values, and makes them a bit more ruby-friendly.

It's possible to do this natively in Ruby by using JRuby to interface with the Java library. So yes, this needs to be run in JRuby.

Examples

For one-off script execution use the 'evaluate' class method:

Oxpecker.evaluate("1 + 1") # 2

Alternatively, you can create a new instance, and execute as much JS as you please within the same scope:

o = Oxpecker.new :source_name => "SexyScript"
o.evaluate("function hi(name){ return 'Hi, '+name+'.'; }") # nil
puts o.evaluate("hi('Fabio') + ' Nice to see you!'") # Hi, Fabio. Nice to see you!
o.close

You should always 'close' your Oxpecker instances when you're finished with them:

o = Oxpecker.new
begin
    o.evaluate "7 * 10"
ensure
    o.close
end

Todo

1. Write a print method and make it available to JavaScript.

Author

Written by Gianni Chiappetta – Runlevel6