Re: Read binary file

From	Herbert Kleebauer <klee@unibwm.de>
Newsgroups	comp.lang.javascript
Subject	Re: Read binary file
Date	2016-03-17 08:31 +0100
Organization	Aioe.org NNTP Server
Message-ID	<ncdmil$1ser$1@gioia.aioe.org> (permalink)
References	<nccmg2$kq7$1@gioia.aioe.org> <145821661.4prVZSFEgG@PointedEars.de>

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On 17.03.2016 01:04, Thomas 'PointedEars' Lahn wrote:
> Herbert Kleebauer wrote:
> 
>> There is a picture (1.jpg) on web server A and I want to make
>> a modified version available using a web server B. Because
>> of copyright I can't just copy the picture, modify it and
>> store it on server B. Instead a html file (test.htm) and
>> a data file which describes how the picture has to be
>> modified (diff.dat) is stored on server B. When a user
>> loads the html file into his browsers, the javascript code
>> loads the original picture from server A and the modification
>> file from server B, changes the picture and displays it.
> 
> Your logic is flawed.  Either there it is a copyright violation to create a 
> modified version of the original, or there is not.  If there is a copyright 
> violation, then no matter how you create the modified version, the issue 
> remains: publishing the modified version would be a copyright violation.

You didn't understand the scenario. Server B only provides the
information where to find the original picture and how to
modify it. Server B never downloads a version of the picture
nor stores a modified version of it. It is the web user on
his own PC who downloads this information and the original
picture and does the modification on-the-fly (no version of
the modified picture is written to the hard disk on the
users PC). Suppose the Server B provides this information:
"download the picture http://ikomi.de/test/1.jpg and
increase brightness by 10% and decrease contrast by 5%".
Why does this violate any copyright?

Instead I could provide a batch script on Server B, which,
when executed on the users PC, will use wget to download the
picture and then use a scriptable image editor (like ImageMagicks
convert.exe) to do the modification. But it would be much
simpler to just use a web browser.

>> I'm not familiar with javascript,
> 
> There is no javascript.

???????????

>> or in which other way can I read a binary file from a different
>> web server into a javascript array.
> 
> I know how (it is actually trivial if you think it through), 

I'm not even sure what the problem is. Does the browser refuse
to read data from a different server than the html file was read
for security reasons or does server A refuse to deliver the
picture because of a referer header.

Thread

Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-16 23:20 +0100
  Re: Read binary file Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-17 01:04 +0100
    Re: Read binary file Stefan Weiss <krewecherl@gmail.com> - 2016-03-17 02:34 +0100
      Re: Read binary file Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-17 07:56 +0100
    Re: Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-17 08:31 +0100
      Re: Read binary file Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-17 19:10 +0100
        Re: Read binary file Stefan Weiss <krewecherl@gmail.com> - 2016-03-17 19:59 +0100
          Re: Read binary file Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-17 21:43 +0100
            Re: Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-17 22:36 +0100
              Re: Read binary file Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-17 23:15 +0100
              Re: Read binary file Stefan Weiss <krewecherl@gmail.com> - 2016-03-18 00:43 +0100
                Re: Read binary file Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-18 17:22 +0100
                Re: Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-18 21:14 +0100
                Re: Read binary file Matthias Wiehl <mw@kwarg.de> - 2016-03-19 00:02 +0100
                Re: Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-19 08:48 +0100
                There is no javascript (was: Read binary file) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-19 13:02 +0100
                Re: There is no javascript (was: Read binary file) Mark - <nonemail@spamspamapam.net> - 2016-03-19 14:33 +0000
                Re: There is no javascript (was: Read binary file) Andrew Poulos <ap_prog@hotmail.com> - 2016-03-20 14:30 +1100
                Re: There is no javascript (was: Read binary file) Mark - <nonemail@spamspamapam.net> - 2016-03-20 13:07 +0000
                Re: There is no javascript (was: Read binary file) John Harris <niam@jghnorth.org.uk.invalid> - 2016-03-20 10:39 +0000
                Re: There is no javascript (was: Read binary file) John Harris <niam@jghnorth.org.uk.invalid> - 2016-03-20 11:19 +0000
                Re: There is no javascript (was: Read binary file) Philip Herlihy <thiswillbounceback@you.com> - 2016-03-21 17:06 +0000
                Re: Read binary file Scott Sauyet <scott.sauyet@gmail.com> - 2016-03-22 17:18 -0700
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-23 10:12 +0100
                Re: Read binary file John Harris <niam@jghnorth.org.uk.invalid> - 2016-03-23 16:27 +0000
                Re: Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-24 10:41 +0100
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-24 11:14 +0100
                Re: Read binary file John Harris <niam@jghnorth.org.uk.invalid> - 2016-03-24 11:41 +0000
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-24 13:36 +0100
                Re: Read binary file John Harris <niam@jghnorth.org.uk.invalid> - 2016-03-25 10:07 +0000
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-25 11:28 +0100
                Re: Read binary file "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-03-24 11:31 +0100
                Re: Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-24 12:34 +0100
                Re: Read binary file "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-03-24 17:15 +0100
                Re: Read binary file Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-03-24 11:33 +0000
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-24 11:05 +0100
                Re: Read binary file Scott Sauyet <scott.sauyet@gmail.com> - 2016-03-23 20:16 -0700
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-24 10:36 +0100
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-24 11:18 +0100
                Re: Read binary file Scott Sauyet <scott.sauyet@gmail.com> - 2016-03-27 10:22 -0700
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-28 00:18 +0200
                Re: Read binary file Scott Sauyet <scott.sauyet@gmail.com> - 2016-03-28 05:35 -0700
                Re: Read binary file "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2016-03-29 00:53 +0200
  Re: Read binary file Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-03-17 02:23 +0100
  Re: Read binary file Herbert Kleebauer <klee@unibwm.de> - 2016-03-17 08:42 +0100
  Re: Read binary file Dr J R Stockton <reply1600@merlyn.demon.co.uk.invalid> - 2016-03-20 22:03 +0000

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