| Why and wherefore file downloads [message #176653] |
Sat, 14 January 2012 18:43  |
Harry Putnam
Messages: 2
Registered: January 2012
Karma:
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Junior Member |
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I lifted something close to this off google, edited and now have it
working along with a cgi script of my own.
I'm way under skilled in this and I have noticed something remarkable
about the php part of the setup:
------- --------- ---=--- --------- --------
From_mohitsharma.net.php
php
<?php
// The file path where the file exists
$filepath = "**HERE**".$_GET['filename']."";
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
//setting content type of page
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=".basename($filepath ));
header("Content-Description: File Transfer");
//Read File it will start downloading
@readfile($filepath);
?>
------- --------- ---=--- --------- --------
Notice the asterisked `**HERE**' in line 2.
It does not seem to matter what I put there, the script still works.
I started out carefully putting the exact path there but later noticed
that it worked no matter what I put there.
Can anyone tell me why that is so?
------- --------- ---=--- --------- --------
The cgi that calls the php code is short so included below as well.
------- --------- ---=--- --------- --------
cgi (note that the actual files for download are in `DocumentRoot/fr/':
------- 8< snip ---------- 8< snip ---------- 8<snip -------
#!/usr/bin/perl
use strict;
use warnings;
use diagnostics;
my ($frdir,$reg, @files, $php);
$php = './Frommohitsharma.net.php';
$reg = qr/\.(html|php|cgi|shtml|css|swf|sw[op]|~)$/;
$frdir = "../fr/";
print "content-type: text/html\n\n";
print "<html> <head>
<title>Free stuff </title>
</head>
<h3> Assorted downloads </h3>
<body bgcolor=\"beige\">
<ul>\n";
opendir my $dh, "$frdir" or die "Can't open $frdir: $!";
## exclude files matching $reg
@files = grep {!/$reg/ && -f "$frdir/$_"} readdir $dh;
for(sort @files){
my $sz = (stat ("$frdir/$_"))[7];
if($sz){
$sz = ($sz / 1024.00 /1024.00 );
}
printf "%s %.2f %s\n", "<li> <h5><h3><a href=\"$php?filename=$_\"><font size=\"1\" color=\"black\">sz:", $sz," mb - </font> $_</h3></a>\n";
}
print "</ul>
</body></html>\n";
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