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Diff for /loncom/cgi/barcode.png between versions 1.4 and 1.12

version 1.4, 2001/10/02 12:50:49 version 1.12, 2005/04/07 06:56:21
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # Scott Harrison  # barcode.png - A CGI script that dynamically outputs a barcode.
 # YEAR=2001  #
 # 8/15,9/28  # $Id$
   #
 # A CGI script that dynamically outputs a barcode.  # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
   ###
   
 # I'm using format=Code39.  # I'm using format=Code39.
 # The valid formats are  # The valid formats are
Line 17 Line 39
 use strict;  use strict;
 use GD::Barcode::Code39;  use GD::Barcode::Code39;
   
 map {  $|=1;   # Autoflush after each print/write
   my %env;
   foreach (split(/&/,$ENV{'QUERY_STRING'})) {
     my ($name, $value) = split(/=/,$_);      my ($name, $value) = split(/=/,$_);
     $value =~ tr/+/ /;      $value =~ tr/+/ /;
     $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;      $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
     if ($name eq 'encode') {      if ($name eq 'encode') {
  $ENV{'form.'.$name}=$value;   $env{'form.'.$name}=$value;
     }      }
 } (split(/&/,$ENV{'QUERY_STRING'}));  }
   
 # Tell the server we are sending a gif graphic  # Tell the server we are sending a png graphic
 print <<END;  print <<END;
 Content-type: image/gif  Content-type: image/png
   
 END  END
   
 unless(defined($ENV{'form.encode'}) and length($ENV{'form.encode'})) {  unless(defined($env{'form.encode'}) and length($env{'form.encode'})) {
     $ENV{'form.encode'}='***ERROR***UNDEFINED***';      $env{'form.encode'}='***ERROR***UNDEFINED***';
 }  }
   my $text = '*'.uc($env{'form.encode'}).'*';
 my $oGdBar=GD::Barcode::Code39->new($ENV{'form.encode'});  my $oGdBar=GD::Barcode::Code39->new($text);
 if ($GD::Barcode::errStr or !defined($oGdBar)) {  if ($GD::Barcode::errStr or !defined($oGdBar)) {
     warn($GD::Barcode::errStr);      warn($GD::Barcode::errStr);
     $oGdBar=GD::Barcode::Code39->new('***ERROR***INVALID***');      $oGdBar=GD::Barcode::Code39->new('***ERROR***INVALID***');
Line 44  if ($GD::Barcode::errStr or !defined($oG Line 68  if ($GD::Barcode::errStr or !defined($oG
 my $bindata=$oGdBar->plot->png; # create barcode image  my $bindata=$oGdBar->plot->png; # create barcode image
 undef $oGdBar;  undef $oGdBar;
 binmode(STDOUT);  binmode(STDOUT);
 open OUT,"|pngtopnm|ppmtogif 2>/dev/null"; # convert into gif image  #open OUT,"|pngtopnm|ppmtogif 2>/dev/null"; # convert into gif image
 print OUT $bindata; # output image  #print OUT $bindata; # output image
 $|=1; # be sure to flush before closing  #$|=1; # be sure to flush before closing
 close OUT;  #close OUT;
   print $bindata;
Removed from v.1.4  
changed lines
  Added in v.1.12

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