File:
[LON-CAPA] /
loncom /
auth /
localstudentphoto.pm
Revision
1.4:
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Fri Feb 10 02:38:59 2006 UTC (18 years, 7 months ago) by
raeburn
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CVS tags:
version_2_8_X,
version_2_8_2,
version_2_8_1,
version_2_8_0,
version_2_7_X,
version_2_7_99_1,
version_2_7_99_0,
version_2_7_1,
version_2_7_0,
version_2_6_X,
version_2_6_99_1,
version_2_6_99_0,
version_2_6_3,
version_2_6_2,
version_2_6_1,
version_2_6_0,
version_2_5_X,
version_2_5_99_1,
version_2_5_99_0,
version_2_5_2,
version_2_5_1,
version_2_5_0,
version_2_4_X,
version_2_4_99_0,
version_2_4_2,
version_2_4_1,
version_2_4_0,
version_2_3_X,
version_2_3_99_0,
version_2_3_2,
version_2_3_1,
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version_2_2_99_0,
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version_2_1_99_3,
version_2_1_99_2,
version_2_1_99_1,
version_2_1_99_0,
version_2_1_3,
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.
1: # The LON-CAPA dummy student photo fetch mechnism
2: #
3: # $Id: localstudentphoto.pm,v 1.4 2006/02/10 02:38:59 raeburn Exp $
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27: # 8/24 Guy Albertelli
28:
29:
30: package localstudentphoto;
31: use lib '/home/httpd/lib/perl/';
32: use LONCAPA::Configuration;
33:
34: sub fetch {
35: my ($domain,$user,$pid,$response)=@_;
36: my $temptxt = '';
37: unless (ref($response)) {
38: $response = \$temptxt;
39: }
40: if ($udom eq '' || $uname eq '') {
41: $$response = 'nouser';
42: return '';
43: }
44: return &main::propath($domain,$user).
45: '/userfiles/internal/studentphoto.jpg';
46: }
47:
48: sub fetch_thumbnail {
49: my ($udom,$uname) = @_;
50: if ($udom eq '' || $uname eq '') {
51: return '';
52: }
53: my $userdir=&main::propath($udom,$uname);
54: my $filepath = '/userfiles/internal/studentphoto.jpg';
55: my $thumbnail = '/userfiles/internal/studentphoto_tn.gif';
56: my $source = "$userdir/$filepath";
57: my $dest = "$userdir/$thumbnail";
58: if (-e $dest) {
59: return $dest;
60: } else {
61: if (!-e $source) {
62: my $file = &fetch($udom,$uname);
63: }
64: if (-e $source) {
65: my ($fullsize,$thumbsize)=&localstudentphoto::thumbsettings($udom);
66: if ($fullsize && $thumbsize) {
67: system("convert -size $fullsize $source -thumbnail $thumbsize $dest");
68: }
69: if (-e $dest) {
70: return $dest;
71: }
72: }
73: }
74: return '';
75: }
76:
77: sub thumbsettings {
78: my ($dom) = @_;
79: my $fullsize = '240x240';
80: my $thumbsize = '40x40';
81: return ($fullsize,$thumbsize);
82: }
83:
84: ###############################
85: # sub AUTOLOAD
86: #
87: # Incoming data: none
88: # Returns ''
89: #
90: # Prevents errors when undefined subroutines are called in this package
91: # Will allow new routines added in the future to be called from lond etc.
92: # without the need for customized versions of local*.pm packages to be
93: # modified to include the new subroutines immediately.
94: #
95: # See "Programming Perl" 3rd ed. pp 296-298.
96: ###############################
97:
98: sub AUTOLOAD {
99: our $AUTOLOAD;
100: return '';
101: }
102:
103: 1;
104: __END__
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