1: # The LearningOnline Network with CAPA
2: # Handler to manage course access keys
3: #
4: # $Id: lonmanagekeys.pm,v 1.6 2003/05/01 02:12:43 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,$comment,%cenv)=@_;
58:
59: my %accesskeys=&Apache::lonnet::dump
60: ('accesskeys',$cenv{'domain'},$cenv{'num'});
61: foreach (keys %accesskeys) {
62: $r->print($_.' '.$accesskeys{$_}.'<br />');
63: }
64: return '';
65: #
66: # Junk below
67: #
68: my ($mode,$linkto,$action,$statusmode,$classlist,$keylist);
69: #
70: # Just junk so that this compiles
71: #
72: my ($username,$domain,$id,$name,$section,$status,@Sorted_Students);
73: #
74: #
75: #
76: my $cid=$ENV{'form.cid'};
77: #
78: # Variables for excel output
79: my ($excel_workbook, $excel_sheet, $excel_filename,$row);
80: #
81:
82: # Print out header
83: if ($mode eq 'view') {
84: } elsif ($mode eq 'excel') {
85: # Create the excel spreadsheet
86: $excel_filename = '/prtspool/'.
87: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
88: time.'_'.rand(1000000000).'.xls';
89: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
90: $excel_filename);
91: $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
92: $excel_sheet = $excel_workbook->addworksheet('classlist');
93: #
94: my $description = 'Classlist for '.
95: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
96: $excel_sheet->write($row++,0,$description);
97: #
98: $excel_sheet->write($row++,0,["username","domain","ID",
99: "student name","section","status"]);
100: }
101: foreach my $student (@Sorted_Students) {
102: if ($mode eq 'view') {
103: } elsif ($mode eq 'csv') {
104: # no need to bother with $linkto
105: my @line = ();
106: foreach ($username,$domain,$id,$name,$section) {
107: push @line,&Apache::loncommon::csv_translate($_);
108: }
109: if ($statusmode eq 'Any') {
110: push @line,&Apache::loncommon::csv_translate($status);
111: }
112: my $tmp = $";
113: $" = '","';
114: $r->print("\"@line\"\n");
115: $" = $tmp;
116: } elsif ($mode eq 'excel') {
117: $excel_sheet->write($row++,0,[$username,$domain,$id,
118: $name,$section,$status]);
119: }
120: }
121: if ($mode eq 'view') {
122: } elsif ($mode eq 'excel') {
123: $excel_workbook->close();
124: $r->print('<p><a href="'.$excel_filename.'">'.
125: 'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
126: }
127: }
128:
129:
130: # ----------------------------------------------------------- Toggle Key Access
131:
132: sub togglekeyaccess {
133: my %cenv=@_;
134: unless ($cenv{'domain'}) { return; }
135: if ($cenv{'keyaccess'} eq 'yes') {
136: return 'Removing key access: '.
137: &Apache::lonnet::del('environment',['keyaccess'],
138: $cenv{'domain'},$cenv{'num'});
139: } else {
140: return 'Establishing key access: '.
141: &Apache::lonnet::put('environment',{'keyaccess' => 'yes'},
142: $cenv{'domain'},$cenv{'num'});
143: }
144: }
145:
146: # --------------------------------------------------------------- Generate Keys
147:
148: sub genkeys {
149: my ($num,$comments,%cenv)=@_;
150: unless ($comments) { $comments=''; }
151: $comments=~s/\#/ /g;
152: $comments=~s/\;/ /g;
153: unless ($num) { return 'No number of keys given.'; }
154: unless (($num=~/^\d+$/) && ($num>0)) {
155: return 'Invalid number of keys given.';
156: }
157: my $batchnumber='BATCH_'.time().'_'.$$;
158: return 'Generated '.&Apache::lonnet::generate_access_keys
159: ($num,$cenv{'domain'},$cenv{'num'},$batchnumber.'; '.$comments).' of '.
160: $num.' access keys (Batch Number: '.$batchnumber.')',$batchnumber;
161: }
162:
163: ###################################################################
164: ###################################################################
165: sub handler {
166: my $r=shift;
167: if ($r->header_only) {
168: $r->content_type('text/html');
169: $r->send_http_header;
170: return OK;
171: }
172: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
173: ['state','cid']);
174: if (($ENV{'form.domain'}) && ($ENV{'form.course'})) {
175: $ENV{'form.cid'}=$ENV{'form.domain'}.'_'.$ENV{'form.course'};
176: }
177:
178: unless (&Apache::lonnet::allowed('mky',$ENV{'request.role.domain'})) {
179: $ENV{'user.error.msg'}=
180: "/adm/managekeys:mky:0:0:Cannot manage access keys";
181: return HTTP_NOT_ACCEPTABLE;
182: }
183: if ($ENV{'form.cid'}) {
184: my %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
185: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
186: #
187: # CSV Output
188: #
189: $r->content_type('text/csv');
190: #
191: # Do CSV
192: #
193: } else {
194: #
195: # Normal web stuff
196: #
197: $r->content_type('text/html');
198: $r->send_http_header;
199: $r->print(&header());
200:
201: $r->print(
202: '<input type="hidden" name="cid" value="'.$ENV{'form.cid'}.'" />');
203: # --- Actions
204: if ($ENV{'form.toggle'}) {
205: $r->print(&togglekeyaccess(%cenv).'<br />');
206: %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
207: }
208: my $batchnumber='';
209: if ($ENV{'form.genkeys'}) {
210: (my $msg,$batchnumber)=
211: &genkeys($ENV{'form.num'},$ENV{'form.comments'},%cenv);
212: $r->print($msg.'<br />');
213: }
214: if ($ENV{'form.listkeys'}) {
215: &show_key_list($r,$ENV{'form.listcom'},%cenv);
216: }
217: # --- Menu
218: $r->print('<h3>Key Access</h3>');
219: if ($cenv{'keyaccess'} eq 'yes') {
220: $r->print('Access to this course is key controlled.<br /><input type="submit" name="toggle" value="Open Access" />')
221: } else {
222: $r->print('Access to this course is open, no access keys.<br /><input type="submit" name="toggle" value="Control Access" />');
223: }
224: $r->print(<<ENDKEYMENU);
225: <hr /><h3>Generate New Keys</h3>
226: Number of keys to be generated: <input type="text" name="num" size="6" /><br />
227: Comments/Remarks/Notes: <input type="text" name="comments" size="30" /><br />
228: <input type="submit" name="genkeys" value="Generate Keys" />
229: <hr /><h3>List Keys</h3>
230: Comments/Remarks/Notes/Batch Number:
231: <input type="text" name="listcom" size="30" value="$batchnumber" /><br />
232: <input type="submit" name="listkeys" value="List Keys" />
233: ENDKEYMENU
234: $r->print('</form></body></html>');
235: }
236: } else {
237: # Start page no course id
238: $r->content_type('text/html');
239: $r->send_http_header;
240: $r->print(&header().&Apache::loncommon::coursebrowser_javascript());
241: $r->print(
242: 'Course ID: <input input type="text" size="25" name="course" value="" />');
243: $r->print('Domain: '.&Apache::loncommon::select_dom_form(
244: $ENV{'request.role.domain'},'domain'));
245: $r->print(&Apache::loncommon::selectcourse_link(
246: 'keyform','course','domain'));
247: $r->print('<br /><input type="submit" value="Manage Access Keys" />');
248: $r->print('</form></body></html>');
249: }
250: return OK;
251: }
252:
253: ###################################################################
254: ###################################################################
255:
256: 1;
257: __END__
258:
259:
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