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Re: Why and wherefore file downloads

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"M. Strobel" <sorry_no_mail_here@nowhere.dee> writes:

> Am 14.01.2012 19:43, schrieb Harry Putnam:
> ---cut
>> -------        ---------       ---=---       ---------      -------- 
>> From_mohitsharma.net.php
>> 
>> php
>> 
>> <?php
>>    // The file path where the file exists
>>    $filepath = "**HERE**".$_GET['filename']."";
> ---cut
>
>>    @readfile($filepath);
>>   ?>
> --------------cut
>
>> ------- 8< snip ---------- 8< snip ---------- 8<snip ------- 
>> #!/usr/bin/perl
>> 
>> use strict;
>> use warnings;
>> use diagnostics;
>> 
>> my ($frdir,$reg, @files, $php);
>> $php = './Frommohitsharma.net.php';
>
> your perl calls Frommohitsharma.net.php, but you print  From_mohitsharma.net.php.
>
> You are calling a different script.

No, that is something added when I wrote this message,  It was to
indicate the php script and typed wrong inadvertently, not a typo
exactly, more like a memory lapse.

But it would have no bearing on what gets called.

The script being called is whatever is in the variable $php and there
is only one such script available.

> This is the only explanation because the parameter filepath is used unchanged in the
> readfile() function and it should not work if you change it.

That is the odd part.  Even if I do change it so that it doesn't really
point to the files, it still works.

For example, I just tried this:

 $filepath = "".$_GET['filename'].""; # no path listed at all.

Yet I am still shown an mp3 to play or download.

And this:
  
 $filepath = "/not".$_GET['filename'].""; ## wrong non-existent path
                                          ##  listed

At first I thought it might be because the mp3s where in the same dir
as the php script.  So I changed that just to find out.

The 1 lonesome mp3 has been moved to /test

I don't have root on the server but can control my little bit of it.

PS - do you mind explaining a bit in an off-group (via email) message,
what you mean by the bit about insecure?
Note: I do not munge my email address ... its real.

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Thread

Why and wherefore file downloads Harry Putnam <reader@newsguy.com> - 2012-01-14 13:43 -0500
  Re: Why and wherefore file downloads "M. Strobel" <sorry_no_mail_here@nowhere.dee> - 2012-01-15 00:06 +0100
    Re: Why and wherefore file downloads Harry Putnam <reader@newsguy.com> - 2012-01-16 20:01 -0500
      Re: Why and wherefore file downloads "M. Strobel" <sorry_no_mail_here@nowhere.dee> - 2012-01-18 09:21 +0100

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