Re: Bug#531221: okular: Arbitrarily enforces DRM

[Gunnar Wolf <gwolf@gwolf.org>]

Roberto C. Sánchez dijo [Sun, May 31, 2009 at 07:27:56AM -0400]:
> Here is behavior that I consider to be equally sane:
> 
> $ su -
> Password:
> # echo ciao >/tmp/foo
> # chmod -w /tmp/foo
> # exit
> logout
> $ vim /tmp/foo
> :w -> E45: 'readonly' option is set (add ! to override)
> :w! -> "/tmp/foo" E212: Can't open file for writing
> (…)
> In reality, what I am having trouble with is, how these two
> scenarios are different:
> 
> 1. Someone produces a PDF with certain DRM restrictions.  The user
> decides that he does not like the restrictions and so looks to
> circumvent them.
> 
> 2. A user or sysadmin produces a file and removes certain access (read
> and/or write) for other users.  The user decides that he does not like
> the restrictions and so looks to circumvent them.

Strong difference here, given we are talking about a Unixish system:
In case 1, all of the bits in question belong to the same user. In
case 2, some of the bits belong to a special user who is in charge of
running the machine. 

-- 
Gunnar Wolf - gwolf@gwolf.org - (+52-55)5623-0154 / 1451-2244
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