1: # The LearningOnline Network with CAPA
2: # Handler to manage course access keys
3: #
4: # $Id: lonmanagekeys.pm,v 1.2 2003/04/22 21:00:42 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###############################################################
29: ###############################################################
30:
31: package Apache::lonmanagekeys;
32:
33: use strict;
34: use Apache::lonnet();
35: use Apache::loncommon();
36: use Apache::lonhtmlcommon();
37: use Apache::Constants qw(:common :http REDIRECT);
38: use Spreadsheet::WriteExcel;
39:
40: ###############################################################
41: ###############################################################
42: sub header {
43: my $bodytag=&Apache::loncommon::bodytag('Access Key Management');
44: return(<<ENDHEAD);
45: <html>
46: <head>
47: <title>LON-CAPA Access Key Management</title>
48: </head>
49: $bodytag
50: <form method="post" enctype="multipart/form-data"
51: action="/adm/managekeys" name="keyform">
52: ENDHEAD
53: }
54:
55: # =================================================== Show student list to drop
56: sub show_key_list {
57: my ($r,$mode,$linkto,$action,$statusmode,$classlist,$keylist)=@_;
58: #
59: # Just junk so that this compiles
60: #
61: my ($username,$domain,$id,$name,$section,$status,@Sorted_Students);
62: #
63: #
64: #
65: my $cid=$ENV{'form.cid'};
66: #
67: # Variables for excel output
68: my ($excel_workbook, $excel_sheet, $excel_filename,$row);
69: #
70:
71: # Print out header
72: if ($mode eq 'view') {
73: } elsif ($mode eq 'excel') {
74: # Create the excel spreadsheet
75: $excel_filename = '/prtspool/'.
76: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
77: time.'_'.rand(1000000000).'.xls';
78: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
79: $excel_filename);
80: $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
81: $excel_sheet = $excel_workbook->addworksheet('classlist');
82: #
83: my $description = 'Classlist for '.
84: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
85: $excel_sheet->write($row++,0,$description);
86: #
87: $excel_sheet->write($row++,0,["username","domain","ID",
88: "student name","section","status"]);
89: }
90: foreach my $student (@Sorted_Students) {
91: if ($mode eq 'view') {
92: } elsif ($mode eq 'csv') {
93: # no need to bother with $linkto
94: my @line = ();
95: foreach ($username,$domain,$id,$name,$section) {
96: push @line,&Apache::loncommon::csv_translate($_);
97: }
98: if ($statusmode eq 'Any') {
99: push @line,&Apache::loncommon::csv_translate($status);
100: }
101: my $tmp = $";
102: $" = '","';
103: $r->print("\"@line\"\n");
104: $" = $tmp;
105: } elsif ($mode eq 'excel') {
106: $excel_sheet->write($row++,0,[$username,$domain,$id,
107: $name,$section,$status]);
108: }
109: }
110: if ($mode eq 'view') {
111: } elsif ($mode eq 'excel') {
112: $excel_workbook->close();
113: $r->print('<p><a href="'.$excel_filename.'">'.
114: 'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
115: }
116: }
117:
118:
119: # ----------------------------------------------------------- Toggle Key Access
120:
121: sub togglekeyaccess {
122: my %cenv=@_;
123: unless ($cenv{'domain'}) { return; }
124: if ($cenv{'keyaccess'} eq 'yes') {
125: &Apache::lonnet::del('environment',['keyaccess'],
126: $cenv{'domain'},$cenv{'num'});
127: } else {
128: &Apache::lonnet::put('environment',{'keyaccess' => 'yes'},
129: $cenv{'domain'},$cenv{'num'});
130: }
131: }
132:
133: ###################################################################
134: ###################################################################
135: sub handler {
136: my $r=shift;
137: if ($r->header_only) {
138: $r->content_type('text/html');
139: $r->send_http_header;
140: return OK;
141: }
142: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
143: ['state','cid']);
144: if (($ENV{'form.domain'}) && ($ENV{'form.course'})) {
145: $ENV{'form.cid'}=$ENV{'form.domain'}.'_'.$ENV{'form.course'};
146: }
147:
148: unless (&Apache::lonnet::allowed('mky',$ENV{'request.role.domain'})) {
149: $ENV{'user.error.msg'}=
150: "/adm/managekeys:mky:0:0:Cannot manage access keys";
151: return HTTP_NOT_ACCEPTABLE;
152: }
153: if ($ENV{'form.cid'}) {
154: #
155: # Only output the header information if they did not request csv format
156: #
157: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
158: $r->content_type('text/csv');
159: } else {
160: # Start page
161: $r->content_type('text/html');
162: $r->send_http_header;
163: $r->print(&header());
164: }
165: $r->print('<input type="hidden" name="cid" value="'.$ENV{'form.cid'}.
166: '" />');
167: my %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
168: if ($ENV{'form.toggle'}) {
169: &togglekeyaccess(%cenv);
170: %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
171: }
172: if ($cenv{'keyaccess'} eq 'yes') {
173: $r->print('Access to this course is key controlled. <input type="submit" name="toggle" value="Open Access" />')
174: } else {
175: $r->print('Access to this course is open, no access keys. <input type="submit" name="toggle" value="Control Access" />');
176: }
177: $r->print('<hr />');
178: #
179: # do stuff here.
180: #
181:
182: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
183: $r->print("\n");
184: } else {
185: $r->print('</form></body></html>');
186: }
187: } else {
188: # Start page no course id
189: $r->content_type('text/html');
190: $r->send_http_header;
191: $r->print(&header().&Apache::loncommon::coursebrowser_javascript());
192: $r->print(
193: 'Course ID: <input input type="text" size="25" name="course" value="" />');
194: $r->print('Domain: '.&Apache::loncommon::select_dom_form(
195: $ENV{'request.role.domain'},'domain'));
196: $r->print(&Apache::loncommon::selectcourse_link(
197: 'keyform','course','domain'));
198: $r->print('<br /><input type="submit" value="Manage Access Keys" />');
199: $r->print('</form></body></html>');
200: }
201: return OK;
202: }
203:
204: ###################################################################
205: ###################################################################
206:
207: 1;
208: __END__
209:
210:
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