lib/perl5/5.8.8/CGI/eg/file_upload.cgi

   1 #!/usr/local/bin/perl -w
   2
   3 use strict 'refs';
   4 use lib '..';
   5 use CGI qw(:standard);
   6 use CGI::Carp qw/fatalsToBrowser/;
   7
   8 print header();
   9 print start_html("File Upload Example");
  10 print strong("Version "),$CGI::VERSION,p;
  11
  12 print h1("File Upload Example"),
  13     'This example demonstrates how to prompt the remote user to
  14     select a remote file for uploading. ',
  15     strong("This feature only works with Netscape 2.0 or greater, or IE 4.0 or greater."),
  16     p,
  17     'Select the ',cite('browser'),' button to choose a text file
  18     to upload.  When you press the submit button, this script
  19     will count the number of lines, words, and characters in
  20     the file.';
  21
  22 my @types = ('count lines','count words','count characters');
  23
  24 # Start a multipart form.
  25 print start_multipart_form(),
  26     "Enter the file to process:",
  27     filefield('filename','',45),
  28     br,
  29     checkbox_group('count',\@types,\@types),
  30     p,
  31     reset,submit('submit','Process File'),
  32     endform;
  33
  34 # Process the form if there is a file name entered
  35 if (my $file = param('filename')) {
  36     my %stats;
  37     my $tmpfile=tmpFileName($file);
  38     my $mimetype = uploadInfo($file)->{'Content-Type'} || '';
  39     print hr(),
  40           h2($file),
  41           h3($tmpfile),
  42           h4("MIME Type:",em($mimetype));
  43
  44     my($lines,$words,$characters,@words) = (0,0,0,0);
  45     while (<$file>) {
  46         $lines++;
  47         $words += @words=split(/\s+/);
  48         $characters += length($_);
  49     }
  50     close $file;
  51     grep($stats{$_}++,param('count'));
  52     if (%stats) {
  53         print strong("Lines: "),$lines,br if $stats{'count lines'};
  54         print strong("Words: "),$words,br if $stats{'count words'};
  55         print strong("Characters: "),$characters,br if $stats{'count characters'};
  56     } else {
  57         print strong("No statistics selected.");
  58     }
  59 }
  60
  61 # print cite("URL parameters: "),url_param();
  62
  63 print hr(),
  64     a({href=>"../cgi_docs.html"},"CGI documentation"),
  65     hr,
  66     address(
  67             a({href=>'/~lstein'},"Lincoln D. Stein")),
  68     br,
  69     'Last modified July 17, 1996',
  70     end_html;
  71