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FAQ Topic - How do I protect my javascript code? (2013-09-08)

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  FAQ Topic - How do I protect my javascript code? (2013-09-08) "FAQ server" <javascript@dotinternet.be> - 2013-09-07 23:00 +0000
    Re: FAQ Topic - How do I protect my javascript code? (2013-09-08) Dr J R Stockton <jrs@merlyn.demon.co.uk> - 2013-09-09 20:02 +0100
      Re: FAQ Topic - How do I protect my javascript code? (2013-09-08) "Chris M. Thomasson" <no@spam.invalid> - 2013-09-11 12:52 -0700
    Re: FAQ Topic - How do I protect my javascript code? (2013-09-08) Nguyễn Khắc Việt <v.r.e.auf51@gmail.com> - 2013-09-10 19:57 -0700
      Re: FAQ Topic - How do I protect my javascript code? (2013-09-08) Martin Leese <please@see.Web.for.e-mail.INVALID> - 2013-09-11 08:09 -0600
      Re: FAQ Topic - How do I protect my javascript code? (2013-09-08) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-09-12 11:51 +0200

#21194 — FAQ Topic - How do I protect my javascript code? (2013-09-08)

-----------------------------------------------------------------------
FAQ Topic - How do I protect my javascript code?
-----------------------------------------------------------------------

With clientside javascript you can't as your code is distributed
in source form and is easily readable. With JScript, there is the
Script Encoder (see MSDN), but this is nothing more than obfuscation.
Attempting to disable the context menu does nothing to
protect your script in a Web browser.

Your code is likely protected under copyright laws. See:
<URL: http://www.wipo.int/about-ip/en/copyright.html>
<URL: http://webdesign.about.com/od/copyright/Copyright_Issues_on_the_Web_Intellectual_Property.htm>


The complete comp.lang.javascript FAQ is at
http://jibbering.com/faq/

-- 

The sendings of these daily posts are proficiently hosted
by http://www.pair.com.

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#21241

In comp.lang.javascript message <522baff6$0$291$14726298@news.sunsite.dk
>, Sat, 7 Sep 2013 23:00:00, FAQ server <javascript@dotinternet.be>
posted:

>With clientside javascript you can't as your code is distributed
>in source form and is easily readable.

I thought that, once upon a time when I requested some Algol source.
Alas, although the reserved words were the same, the identifiers and the
comment were in (IIRC) Hungarian.  The compiler understood it, but I did
not.

-- 
 (c) John Stockton, nr London, UK.  Mail via homepage.  Turnpike v6.05  MIME.
  Web  <http://www.merlyn.demon.co.uk/> - FAQqish topics, acronyms and links;
  Astro stuff via astron-1.htm, gravity0.htm ; quotings.htm, pascal.htm, etc.
  No Encoding. Quotes before replies. Snip well. Write clearly. Mail no News.

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#21267

>"Dr J R Stockton"  wrote in message 
>news:87$Z1VsithLSFwfo@invalid.uk.co.demon.merlyn.invalid...

>In comp.lang.javascript message <522baff6$0$291$14726298@news.sunsite.dk
>>, Sat, 7 Sep 2013 23:00:00, FAQ server <javascript@dotinternet.be>
>>posted:

>>With clientside javascript you can't as your code is distributed
>>in source form and is easily readable.

>I thought that, once upon a time when I requested some Algol source.
>Alas, although the reserved words were the same, the identifiers and the
>comment were in (IIRC) Hungarian.  The compiler understood it, but I did
>not.

Exactly. AFAICT,  the best you can do is give the person that wants to copy
the JavaScript a fairly massive headache!

;^) 

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#21258

> -----------------------------------------------------------------------
> 
> FAQ Topic - How do I protect my javascript code?
> With clientside javascript you can't as your code is distributed
> in source form and is easily readable. With JScript, there is the
> Script Encoder (see MSDN), but this is nothing more than obfuscation.
> Attempting to disable the context menu does nothing to
> protect your script in a Web browser.
> Your code is likely protected under copyright laws. See:
> <URL: http://www.wipo.int/about-ip/en/copyright.html>
> <URL: http://webdesign.about.com/od/copyright/Copyright_Issues_on_the_Web_Intellectual_Property.htm>

> The complete comp.lang.javascript FAQ is at
> http://jibbering.com/faq/


You can try Yuicompressor or Closure https://developers.google.com/closure/ 

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#21265

Nguyen Khac Viet wrote:
>> -----------------------------------------------------------------------
>>
>> FAQ Topic - How do I protect my javascript code?
>> With clientside javascript you can't as your code is distributed
>> in source form and is easily readable. With JScript, there is the
>> Script Encoder (see MSDN), but this is nothing more than obfuscation.
>> Attempting to disable the context menu does nothing to
>> protect your script in a Web browser.
>> Your code is likely protected under copyright laws. See:
>> <URL: http://www.wipo.int/about-ip/en/copyright.html>
>> <URL: http://webdesign.about.com/od/copyright/Copyright_Issues_on_the_Web_Intellectual_Property.htm>
> 
>> The complete comp.lang.javascript FAQ is at
>> http://jibbering.com/faq/
> 
> You can try Yuicompressor or Closure https://developers.google.com/closure/ 

These are still obscuraters (although it is
arguable that Closure is not even that), so
the FAQ answer is not wrong just out of
date.  The FAQ needs to make a more general
statement, and not imply that Microsoft
Script Encoder is the only option.

Also note that according to:
http://www.yuiblog.com/blog/2012/10/16/state-of-yui-compressor/

the Yui Compressor has been deprecated.

-- 
Regards,
Martin Leese
E-mail: please@see.Web.for.e-mail.INVALID
Web: http://members.tripod.com/martin_leese/

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#21277

Nguyễn Khắc Việt wrote:

>> -----------------------------------------------------------------------
>> 
>> FAQ Topic - How do I protect my javascript code?
>> With clientside javascript you can't as your code is distributed
>> in source form and is easily readable. With JScript, there is the
>> Script Encoder (see MSDN), but this is nothing more than obfuscation.
>> Attempting to disable the context menu does nothing to
>> protect your script in a Web browser.
>> Your code is likely protected under copyright laws. See:
>> <URL: http://www.wipo.int/about-ip/en/copyright.html>
>> <URL:
>> 
http://webdesign.about.com/od/copyright/Copyright_Issues_on_the_Web_Intellectual_Property.htm>
> 
>> The complete comp.lang.javascript FAQ is at
>> http://jibbering.com/faq/
> 
> 
> You can try Yuicompressor or Closure
> https://developers.google.com/closure/

You have missed the point of the FAQ entry.  Compacting, compressing, or 
obfuscating code does _not_ protect the code from being reused; it can be 
uncompacted, uncompressed, or unobfuscated on the client-side at any time.

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

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