File:
[LON-CAPA] /
loncom /
auth /
localstudentphoto.pm
Revision
1.4:
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Fri Feb 10 02:38:59 2006 UTC (18 years, 6 months ago) by
raeburn
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version_2_8_X,
version_2_8_2,
version_2_8_1,
version_2_8_0,
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version_2_7_99_1,
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HEAD,
GCI_1
Allow for the addition of new subroutines to local*.pm packages in the future, in a way that will prevent errors if undefined subroutines are called in customized versions.
# The LON-CAPA dummy student photo fetch mechnism
#
# $Id: localstudentphoto.pm,v 1.4 2006/02/10 02:38:59 raeburn Exp $
#
# 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/
#
# 8/24 Guy Albertelli
package localstudentphoto;
use lib '/home/httpd/lib/perl/';
use LONCAPA::Configuration;
sub fetch {
my ($domain,$user,$pid,$response)=@_;
my $temptxt = '';
unless (ref($response)) {
$response = \$temptxt;
}
if ($udom eq '' || $uname eq '') {
$$response = 'nouser';
return '';
}
return &main::propath($domain,$user).
'/userfiles/internal/studentphoto.jpg';
}
sub fetch_thumbnail {
my ($udom,$uname) = @_;
if ($udom eq '' || $uname eq '') {
return '';
}
my $userdir=&main::propath($udom,$uname);
my $filepath = '/userfiles/internal/studentphoto.jpg';
my $thumbnail = '/userfiles/internal/studentphoto_tn.gif';
my $source = "$userdir/$filepath";
my $dest = "$userdir/$thumbnail";
if (-e $dest) {
return $dest;
} else {
if (!-e $source) {
my $file = &fetch($udom,$uname);
}
if (-e $source) {
my ($fullsize,$thumbsize)=&localstudentphoto::thumbsettings($udom);
if ($fullsize && $thumbsize) {
system("convert -size $fullsize $source -thumbnail $thumbsize $dest");
}
if (-e $dest) {
return $dest;
}
}
}
return '';
}
sub thumbsettings {
my ($dom) = @_;
my $fullsize = '240x240';
my $thumbsize = '40x40';
return ($fullsize,$thumbsize);
}
###############################
# sub AUTOLOAD
#
# Incoming data: none
# Returns ''
#
# Prevents errors when undefined subroutines are called in this package
# Will allow new routines added in the future to be called from lond etc.
# without the need for customized versions of local*.pm packages to be
# modified to include the new subroutines immediately.
#
# See "Programming Perl" 3rd ed. pp 296-298.
###############################
sub AUTOLOAD {
our $AUTOLOAD;
return '';
}
1;
__END__
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