Owen Leonard
34c405d6fe
This patch adds a couple of new parameters to the barcode generator service: "modulesize," which controls the size of QRcodes*, and "height," which can be applied to all other barcode types. * The "modulesize" number refers to the pixel dimensions of each black and white square in the generated QRcode. The dimensions in "squares" of the QR code depends on how much data is being encoded. For QRcodes, one default parameters is used: An error-correction level of "M" (Medium, https://en.wikipedia.org/wiki/QR_code#Error_correction). To test, apply the patch and restart services. Test various settings to confirm that barcodes are displayed correctly: http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=QRcode&modulesize=3&barcode=https%3A%2F%2Fkoha-community.org http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=QRcode&modulesize=6&barcode=https%3A%2F%2Fkoha-community.org http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=Code39&height=50&barcode=32000000203734 http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=Code39&height=20&barcode=32000000203734 http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=COOP2of5&height=50&barcode=32000000203734 http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=IATA2of5&height=50&barcode=32000000203734 http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=Industrial2of5&height=50&barcode=32000000203734 http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=ITF&height=50&barcode=32000000203734 http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=Matrix2of5&height=50&barcode=32000000203734 http://127.0.0.1:8081/cgi-bin/koha/svc/barcode?type=NW7&height=50&barcode=32000000203734 Signed-off-by: Lucas Gass <lucas@bywatersolutions.com> Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl> Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
131 lines
2.7 KiB
Perl
Executable file
131 lines
2.7 KiB
Perl
Executable file
#!/usr/bin/perl
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# Copyright 2014 ByWater Solutions
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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use Modern::Perl;
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use CGI qw(header);
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use GD::Barcode;
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use C4::Auth qw(check_cookie_auth);
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=head1 NAME
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/cgi-bin/koha/svc/barcode
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=head1 SYNOPSIS
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This service generates a PNG barcode image for the requested barcode.
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=head2 PARAMETERS
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=over
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=item I<barcode>
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I<barcode> is the desired barcode. It should be called like:
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=item I<type>
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I<type> is the desired barcode type. Possible values are
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Code39
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UPCE
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UPCA
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QRcode
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NW7
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Matrix2of5
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ITF
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Industrial2of5
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IATA2of5
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EAN8
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EAN13
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COOP2of5
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If ommited,it defaults to Code39.
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=item I<notext>
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Unless I<notext=1> is specified in the parameter list, the
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value of the barcode will included as text below the
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scannable barcode.
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=back
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=head2 EXAMPLES
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=over
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=item /cgi-bin/koha/svc/barcode?barcode=123456789
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Returns a Code39 barcode image for barcode 123456789
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=item /cgi-bin/koha/svc/barcode?barcode=123456789&type=UPCE
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Returns a UPCE barcode image for barcode 123456789
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=item /cgi-bin/koha/svc/barcode?barcode=123456789¬ext=1
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Returns a Code39 barcode image for barcode 123456789
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which does not include the human readable text '123456789'
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below the scannable barcode.
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=back
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=cut
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my $input = CGI->new;
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my ( $auth_status ) = check_cookie_auth( $input->cookie('CGISESSID'), { catalogue => '*' } );
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if ( $auth_status ne "ok" ) {
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exit 0;
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}
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binmode(STDOUT);
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my $type = $input->param('type') || 'Code39';
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my $barcode = $input->param('barcode');
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my $notext = $input->param('notext') ? 1 : 0;
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my $height = $input->param('height') || 50;
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my $qrcode_modulesize = $input->param('modulesize') || "5"; # 1+
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my $image;
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eval {
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if( $type eq "QRcode" ){
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$image = GD::Barcode->new('QRcode', $barcode, { Ecc => "M", ModuleSize => $qrcode_modulesize } )->plot->png();
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} else {
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$image = GD::Barcode->new( $type, $barcode )->plot( NoText => $notext, Height => $height )->png();
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}
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};
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if ( $@ ) {
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# problem creating image
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print header( -status => 500 );
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} else {
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print header('image/png');
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print $image;
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}
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exit 0;
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=head1 AUTHOR
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Kyle M Hall <kyle@bywatersolutions.com>
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=cut
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