MozillaZine

Javascript File i/o

Thursday May 25th, 2000

Pete Collins from Alphanumerica and Mozilla developers have created a Javascript interface for doing file i/o in Mozilla, which will allow new Mozilla components like Alphanumerica's Crash Recovery system to function properly.

Patterned after the PHP filesystem functions, simple functions such as file read/write and directory create are supported. The code has not yet made it into the nightly build, but they expect it will get in soon.

Note from AN: There seems to be a misconception about Javascript File I/O being a security risk. It is important to clarify that this project is not opening any security holes in Mozilla. There is a difference between Javascript on the Internet and Javascript inside the application. Javascript is used inside Mozilla to create the functionality for the application. This is in contrast to any Javascript downloaded from the Internet that is used for functionality only inside a Web page. This project does not grant any access to Javascript found on the Internet. For more information about how Javascript is used inside Mozilla read more about XPCOM and XPConnect.


#1 hrmmmm......

by SomeSmartAss

Thursday May 25th, 2000 10:02 AM

You are replying to this message

How is this built into the security model?

The page linked to to stated;

"This interface allows even casual programmers full access to local file handling routines."

That little statement alone gave me the willies. Please tell me the by "local" they meant "machine from which the page originated" Or is this for use withing the Mozilla framework, and not at the page level?

I'm just thinking about all those nasty VBScript viruses (virii?) that I have, up until reading this post, smuggly dismissed as an IE only problem.