85 lines
2.0 KiB
Perl
85 lines
2.0 KiB
Perl
package upload;
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our $VERSION = "1.0";
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use vars qw/$VERSION @EXPORT @ISA/;
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require Exporter;
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@EXPORT = qw (upload);
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@ISA = "Exporter";
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use strict;
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use warnings "all";
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use diagnostics;
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use Fcntl;
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use conf;
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my $c = loadConf();
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sub upload {
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my $input = shift; # file descriptor with data being uploaded
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my $len = shift; # expected data length (from client)
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my $name = shift; # upload "dir" and filename
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my ($status, $content, $msg) = ('400', 'text/plain', "Bad Request?\n");
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return ($status, $content, "No Content-Length supplied.\n") unless (defined($len));
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return ($status, $content, "No name supplied.\n") unless (defined($name));
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my $d;
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($d, $name) = split(/\//, $name, 2);
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return ($status, $content, "Name does not match pattern.\n") unless ($name =~ /^[A-Z|a-z|0-9|_|\-|\+]+$/);
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my $match;
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foreach (keys(%{$c->{upload}->{dir}})) {
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if ($d eq $_) {
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$match = 1;
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last;
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}
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}
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return ($status, $content, "Incorrect destination dir.\n") unless($match); # incorrect destination in url
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$name = sprintf("%s/%s", $c->{upload}->{dir}->{$d}, $name);
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if ($len > 0) {
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if (sysopen (F, $name, O_CREAT|O_TRUNC|O_WRONLY)) {
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my $buf;
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my $readlen = 0;
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my $totalread = 0;
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my $buflen = 524288; # 512 kbytes, looks sane enough
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if ($len < $buflen) {
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$buflen = $len;
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}
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do {
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$readlen = $input->read($buf, $buflen);
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unless (defined(syswrite F, $buf, $readlen)) { # out of space?
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close F;
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unlink $name;
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return ('500', $content, "An error has occured during upload: $!\n");
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}
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$totalread += $readlen;
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} while ($readlen == $buflen);
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close F;
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if ($totalread != $len) {
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($status, $content, $msg) = ('400', $content, "Content-Length does not match amount of recieved bytes.\n");
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} else {
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($status, $content, $msg) = ('201', $content, "Uploaded.\n");
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}
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} else {
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($status, $content, $msg) = ('500', $content, "Unable to write: $!\n");
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}
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} else {
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$msg = "Incorrect Content-Length\n";
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}
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return ($status, $content, $msg);
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}
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1;
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