svc/barcode

   1 #!/usr/bin/perl
   2
   3 # Copyright 2014 ByWater Solutions
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20 use Modern::Perl;
  21
  22 use CGI qw(header);
  23 use GD::Barcode;
  24
  25 use C4::Auth qw(check_cookie_auth);
  26
  27 =head1 NAME
  28
  29 /cgi-bin/koha/svc/barcode
  30
  31 =head1 SYNOPSIS
  32
  33 This service generates a PNG barcode image for the requested barcode.
  34
  35 =head2 PARAMETERS
  36
  37 =over
  38
  39 =item I<barcode>
  40
  41 I<barcode> is the desired barcode. It should be called like:
  42
  43 =item I<type>
  44
  45 I<type> is the desired barcode type. Possible values are
  46 Code39
  47 UPCE
  48 UPCA
  49 QRcode
  50 NW7
  51 Matrix2of5
  52 ITF
  53 Industrial2of5
  54 IATA2of5
  55 EAN8
  56 EAN13
  57 COOP2of5
  58
  59 If ommited,it defaults to Code39.
  60
  61 =item I<notext>
  62
  63 Unless I<notext=1> is specified in the parameter list, the
  64 value of the barcode will included as text below the
  65 scannable barcode.
  66
  67
  68 =back
  69
  70 =head2 EXAMPLES
  71
  72 =over
  73
  74 =item /cgi-bin/koha/svc/barcode?barcode=123456789
  75
  76 Returns a Code39 barcode image for barcode 123456789
  77
  78 =item /cgi-bin/koha/svc/barcode?barcode=123456789&type=UPCE
  79
  80 Returns a UPCE barcode image for barcode 123456789
  81
  82 =item /cgi-bin/koha/svc/barcode?barcode=123456789&notext=1
  83
  84 Returns a Code39 barcode image for barcode 123456789
  85 which does not include the human readable text '123456789'
  86 below the scannable barcode.
  87
  88 =back
  89
  90 =cut
  91
  92 my $input = CGI->new;
  93
  94 my ( $auth_status, $sessionID ) = check_cookie_auth( $input->cookie('CGISESSID'), { catalogue => '*' } );
  95
  96 if ( $auth_status ne "ok" ) {
  97     exit 0;
  98 }
  99
 100 binmode(STDOUT);
 101
 102 my $type = $input->param('type') || 'Code39';
 103 my $barcode = $input->param('barcode');
 104 my $notext = $input->param('notext') ? 1 : 0;
 105 my $image;
 106
 107 eval {
 108     $image = GD::Barcode->new( $type, $barcode )->plot( NoText => $notext )->png();
 109 };
 110
 111 if ( $@ ) {
 112     # problem creating image
 113     print header( -status => 500 );
 114 } else {
 115     print header('image/png');
 116     print $image;
 117 }
 118
 119 exit 0;
 120
 121 =head1 AUTHOR
 122
 123 Kyle M Hall <kyle@bywatersolutions.com>
 124
 125 =cut