如何处理HTTP文件上传？

如何编写通过HTTP帖子接收文件的Perl CGI脚本并将其保存到文件系统？

使用CGI模块.

my $fh = $query->upload('upload_field');
while(<$fh>) {
  print SAVE_FILE $_;
}

只需注意:但是您将编写它,不要将其保存在可从Web服务器访问的位置.

现在到了这一点:下面是我用了一段时间进行照片上传的脚本.它可能需要一些调整,但应该告诉你的方式.

由于图像没有上传到网络可访问的目录,我们有单独的过程检查它,调整大小,放置水印并将其放置在可以访问的位置.

 #!/usr/bin/perl -wT

use strict;
use CGI;
use CGI::Carp qw ( fatalsToBrowser );
use File::Basename;

$CGI::POST_MAX = 1024 * 5000;
my $safe_filename_characters = "a-zA-Z0-9_.-";
my $upload_dir = "/home/www/upload";

my $query = new CGI;
my $filename = $query->param("photo");
my $email_address = $query->param("email_address");

if ( !$filename )
{
 print $query->header ( );
 print "There was a problem uploading your photo (try a smaller file).";
 exit;
}

my ( $name, $path, $extension ) = fileparse ( $filename, '\..*' );
$filename = $name . $extension;
$filename =~ tr/ /_/;
$filename =~ s/[^$safe_filename_characters]//g;

if ( $filename =~ /^([$safe_filename_characters]+)$/ )
{
 $filename = $1;
}
else
{
 die "Filename contains invalid characters";
}

my $upload_filehandle = $query->upload("photo");

open ( UPLOADFILE, ">$upload_dir/$filename" ) or die "$!";
binmode UPLOADFILE;

while ( <$upload_filehandle> )
{
 print UPLOADFILE;
}

close UPLOADFILE;

print $query->header ( );
print <

 
   
   
 
 
   
Thanks for uploading your photo!
 

END_HTML

有关文件上载,请参阅CGI.pm文档.