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Comment: Re:Still uses more CPU than IE/FF - Check plugins (Score 1) 136

by Tetravus (#46246941) Attached to: Background Javascript Compilation Boosts Chrome Performance

If you've got lots of plugins for Chrome, try disabling most or all of them and see if that makes a difference. Plugins run in the same process as the browser and can add JS code to 'background' pages that are present in memory even when you're not interacting with the plugin.

Comment: Chrome Remote Desktop (not OSS but very easy) (Score 5, Informative) 116

by Tetravus (#45312515) Attached to: Ask Slashdot: Easy, Open Source Desktop-Sharing Software?

Google published a remote desktop plugin for the Chrome browser. It's not Open Source, but it is free (as in beer), and professionally written installation / setup instructions are available in multiple languages.

Actual remote access for you will be controlled by the user, they create a one-time passkey in Chrome and share that with you to connect to their system.

Here's the plugin page: https://chrome.google.com/webstore/detail/chrome-remote-desktop/gbchcmhmhahfdphkhkmpfmihenigjmpp

Here's the support page: https://support.google.com/chrome/answer/1649523?hl=en

For non-technical users adding a browser plugin is going to be much easier to understand than messing around with port forwarding and system permissions.

Comment: Sentence parsing fails (Score 2) 780

by Tetravus (#44490373) Attached to: NRA Launches Pro-Lead Website

"The National Rifle Association has launched a website defending the use of lead ammunition against scientists and environmental organizations..."

Okay then, at least they didn't defend the use of water boarding on scientists. Oh wait, I totally parsed that wrong due to my inherent bias against anything coming from the NRA. So, I checked the link and saw that it goes to a site "huntfortruth.org" (so you can kill it). Dang! There goes that inbuilt sarcasm again.

Here's a report, republished from Association of Firearm and Tool Mark Examiners Journal, Volume 31 Number 4, Fall 1999 written with assistance from a researcher a the Oak Ridge National Laboratory that details what a "green" bullet is: http://www.firearmsid.com/Feature%20Articles/GreenBullets/GreenBullets.htm

Comment: Link history plus screenshots of iframe content (Score 3, Interesting) 167

by Tetravus (#44470369) Attached to: New JavaScript-Based Timing Attack Steals All Browser Source Data

So the guy figured out that browsers render all links on a page and then reflow any that should by styled to indicate they have already been visited. Apparently you can figure out which links have been reflowed by checking the number of frames that have to be rendered to display a link. Not a big deal, and if your site uses the same style for links that are already visited, not an actual attack vector.

The second attack, using SVG (or, I assume) canvas to create a screenshot of what's visible to the end user could be leveraged for an actual attack, you know, if everyone didn't put iframe busting code on their pages served over SSL. Vendors can update the SVG rendering system to adhere to the same cross domain restrictions as other components and not include pixels from iframes in the buffer that is available to inspect via JS and this hole will be closed.

Not too much to worry about here, but I'm surprised that SVG doesn't already do this (canvas won't allow JS to work with cross-domain images unless they have been served with a header that marks them as "safe" according to their originating service).

Comment: Re:node.js has a very serious issue (Score 1) 304

by Tetravus (#44239153) Attached to: Ask Slashdot: Node.js vs. JEE/C/C++/.NET In the Enterprise?

Node.js supports the use of addons written in C/C++.

Use JS for libraries that are shared between client & server (e.g. HTML templating) and for logic that changes frequently or needs to be accessible to dedicated front-end devs (e.g. request routing). Use compiled C for code that needs to be extremely fast &/or robust (e.g authentication & creation of dynamic resources).

Here's a handy example addon from the node.js docs:
http://nodejs.org/api/addons.html

Comment: Re:Javascript is a disaster (Score 1) 305

by Tetravus (#36056592) Attached to: JavaScript Creator Talks About the Future

No scope to speak of

well, it's not true really. In the following example x will have global scope and y will be local to its function:

x=2;
function test() {

    y = x + 3;
}

--

The declaration of the variable 'y' in the example is missing its keyword 'var' and will unintentionally create a globally scoped variable.
Should be:
var x = 2;
function test(){
var y;
y = x + 3; // could also place the var statement inline with assignment operator
}
console.log(x); // prints 2 to the JS console
console.log(typeof y); // prints 'undefined' to the JS console

- well, there is the keyword "inherits" and it does allow an object to be extended and you can use the 'prototype' to have multiple inheritance.

The prototype inheritance pattern doesn't allow for true multiple inheritance (like what C++ has). However, you can fake it by munging functions from multiple classes into your class' prototype effectively providing the functionality of multiple inheritance in simple cases.

Comment: Yahoo has APIs for mail access... (Score 1) 249

by Tetravus (#26245723) Attached to: Fairpoint Pledges To Violate Net Neutrality

meaning that third parties can implement their own interface to Yahoo! mail.

http://developer.yahoo.com/mail/

This may be what Fairpoint is doing to give users access through their branded portal. These same APIs mean that any user can implement their own non-Fairpoint approved access mechanism for their webmail.

It may not be a solution for all users, but at least yahoo's opened up enough that there are options available in the case of abusive network access providers.

Comment: The 'e' editor (based on TextMate source) has this (Score 1) 286

by Tetravus (#24340111) Attached to: Programmer's File Editor With Change Tracking?

Under the 'View' menu select 'Undo History' for a nice graphical interface to changes that have been made in the current document.

You can even click a particular version to revert the document to that exact content.

Of course it's not free-ware... but it is quite stable and the demo version _is_ free.

http://www.e-texteditor.com/

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