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Re: sha256sum --text generating blank spaces and hyphens?

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On 28/04/2023 15:06, Nicolas George wrote:
> Max Nikulin (12023-04-28):
>> So URI comparison is not a trivial task.
> 
> It is an impossible task unless you have specific information about the
> workings of the website.

However some steps toward URL normalization should still be tried.

>> And you will quickly face servers that sends incorrectly Content-Type or
>> intentionally put application/octet-stream with no sniff header to force
>> browser to save the file instead of opening it e.g. in built-in PDF reader.
> 
> So what?

Usually I would trust libmagic/file(1) more than the content-type 
header. HTTP server may send header depending on file extension. Of 
course, there are cases when info provided by libmagic may be extended 
by Content-Type or file suffix (in URI path or download file name hint 
in HTTP headers): XPI browser extensions are ZIP files. Plain text file 
may contain markdown or reStructured text markup. You regret absence of 
standard way to store file type, but incorrect value may be 
intentionally specified there. I consider heuristics unavoidable whether 
with standardized place or without it.

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sha256sum --text generating blank spaces and hyphens? Albretch Mueller <lbrtchx@gmail.com> - 2023-04-26 09:50 +0200
  Re: sha256sum --text generating blank spaces and hyphens? <tomas@tuxteam.de> - 2023-04-26 10:20 +0200
    Re: sha256sum --text generating blank spaces and hyphens? Albretch Mueller <lbrtchx@gmail.com> - 2023-04-26 16:40 +0200
      Re: sha256sum --text generating blank spaces and hyphens? Nicolas George <george@nsup.org> - 2023-04-26 16:50 +0200
        Re: sha256sum --text generating blank spaces and hyphens? Max Nikulin <manikulin@gmail.com> - 2023-04-28 04:30 +0200
          Re: sha256sum --text generating blank spaces and hyphens? Nicolas George <george@nsup.org> - 2023-04-28 10:10 +0200
            Re: sha256sum --text generating blank spaces and hyphens? Max Nikulin <manikulin@gmail.com> - 2023-04-28 18:50 +0200
              Re: sha256sum --text generating blank spaces and hyphens? Nicolas George <george@nsup.org> - 2023-04-29 11:00 +0200
                Re: sha256sum --text generating blank spaces and hyphens? Max Nikulin <manikulin@gmail.com> - 2023-04-29 14:20 +0200
                Re: sha256sum --text generating blank spaces and hyphens? Nicolas George <george@nsup.org> - 2023-04-29 14:30 +0200
      Re: sha256sum --text generating blank spaces and hyphens? Dan Ritter <dsr@randomstring.org> - 2023-04-26 17:10 +0200
      Re: sha256sum --text generating blank spaces and hyphens? David Wright <deblis@lionunicorn.co.uk> - 2023-04-26 17:10 +0200
      Re: sha256sum --text generating blank spaces and hyphens? "Thomas Schmitt" <scdbackup@gmx.net> - 2023-04-26 17:10 +0200
      Re: sha256sum --text generating blank spaces and hyphens? <tomas@tuxteam.de> - 2023-04-26 19:00 +0200
        Re: sha256sum --text generating blank spaces and hyphens? Albretch Mueller <lbrtchx@gmail.com> - 2023-04-26 22:40 +0200
          Re: sha256sum --text generating blank spaces and hyphens? Albretch Mueller <lbrtchx@gmail.com> - 2023-04-26 23:10 +0200
          Re: sha256sum --text generating blank spaces and hyphens? Andy Smith <andy@strugglers.net> - 2023-04-26 23:50 +0200
  Re: sha256sum --text generating blank spaces and hyphens? Andy Smith <andy@strugglers.net> - 2023-04-26 12:50 +0200
  Re: sha256sum --text generating blank spaces and hyphens? Jeffrey Walton <noloader@gmail.com> - 2023-04-26 18:00 +0200
  Re: sha256sum --text generating blank spaces and hyphens? David Christensen <dpchrist@holgerdanske.com> - 2023-04-27 00:50 +0200
    Re: sha256sum --text generating blank spaces and hyphens? Nicolas George <george@nsup.org> - 2023-04-27 00:50 +0200
      Re: sha256sum --text generating blank spaces and hyphens? David Christensen <dpchrist@holgerdanske.com> - 2023-04-27 06:10 +0200
        Re: sha256sum --text generating blank spaces and hyphens? Max Nikulin <manikulin@gmail.com> - 2023-04-27 08:00 +0200
          Re: sha256sum --text generating blank spaces and hyphens? Albretch Mueller <lbrtchx@gmail.com> - 2023-04-27 09:30 +0200
        Re: sha256sum --text generating blank spaces and hyphens? Nicolas George <george@nsup.org> - 2023-04-27 10:10 +0200
          Re: sha256sum --text generating blank spaces and hyphens? David Christensen <dpchrist@holgerdanske.com> - 2023-04-27 17:20 +0200
            Re: sha256sum --text generating blank spaces and hyphens? Albretch Mueller <lbrtchx@gmail.com> - 2023-05-02 02:10 +0200
    Re: sha256sum --text generating blank spaces and hyphens? Albretch Mueller <lbrtchx@gmail.com> - 2023-04-27 01:30 +0200
      Re: sha256sum --text generating blank spaces and hyphens? David Christensen <dpchrist@holgerdanske.com> - 2023-04-27 06:30 +0200

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