1: # The LearningOnline Network with CAPA
2: # Handler to manage course access keys
3: #
4: # $Id: lonmanagekeys.pm,v 1.7 2003/05/01 20:26:28 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,$comment,$newonly,$checkonly,%cenv)=@_;
58: $comment=~s/\W/\./g;
59: my %accesskeys=&Apache::lonnet::dump
60: ('accesskeys',$cenv{'domain'},$cenv{'num'});
61: $r->print('<table border="2"><tr><th>Key</th><th>Checked Out</th><th>Comments/Remarks/Notes</th></tr>');
62: foreach (keys %accesskeys) {
63: if ($_=~/^error\:/) {
64: $r->print('<tr><td>No keys have been generated yet.</td></tr>');
65: } elsif ($accesskeys{$_}=~/$comment/) {
66: my ($checkout,$com)=split(/\s*\#\s*/,$accesskeys{$_});
67: unless ($checkout) {
68: if ($checkonly) { next; }
69: } else {
70: if ($newonly) { next; }
71: }
72: $r->print("\n<tr><td><tt>".$_.'</tt></td><td>'.($checkout?
73: $checkout:'-').'</td><td>'.
74: join('<br />',split(/\s*\;\s*/,$com)).'</td></tr>');
75: }
76: }
77: $r->print('</table>');
78: return '';
79: #
80: # Junk below
81: #
82: my ($mode,$linkto,$action,$statusmode,$classlist,$keylist);
83: #
84: # Just junk so that this compiles
85: #
86: my ($username,$domain,$id,$name,$section,$status,@Sorted_Students);
87: #
88: #
89: #
90: my $cid=$ENV{'form.cid'};
91: #
92: # Variables for excel output
93: my ($excel_workbook, $excel_sheet, $excel_filename,$row);
94: #
95:
96: # Print out header
97: if ($mode eq 'view') {
98: } elsif ($mode eq 'excel') {
99: # Create the excel spreadsheet
100: $excel_filename = '/prtspool/'.
101: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
102: time.'_'.rand(1000000000).'.xls';
103: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
104: $excel_filename);
105: $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
106: $excel_sheet = $excel_workbook->addworksheet('classlist');
107: #
108: my $description = 'Classlist for '.
109: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
110: $excel_sheet->write($row++,0,$description);
111: #
112: $excel_sheet->write($row++,0,["username","domain","ID",
113: "student name","section","status"]);
114: }
115: foreach my $student (@Sorted_Students) {
116: if ($mode eq 'view') {
117: } elsif ($mode eq 'csv') {
118: # no need to bother with $linkto
119: my @line = ();
120: foreach ($username,$domain,$id,$name,$section) {
121: push @line,&Apache::loncommon::csv_translate($_);
122: }
123: if ($statusmode eq 'Any') {
124: push @line,&Apache::loncommon::csv_translate($status);
125: }
126: my $tmp = $";
127: $" = '","';
128: $r->print("\"@line\"\n");
129: $" = $tmp;
130: } elsif ($mode eq 'excel') {
131: $excel_sheet->write($row++,0,[$username,$domain,$id,
132: $name,$section,$status]);
133: }
134: }
135: if ($mode eq 'view') {
136: } elsif ($mode eq 'excel') {
137: $excel_workbook->close();
138: $r->print('<p><a href="'.$excel_filename.'">'.
139: 'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
140: }
141: }
142:
143:
144: # ----------------------------------------------------------- Toggle Key Access
145:
146: sub togglekeyaccess {
147: my %cenv=@_;
148: unless ($cenv{'domain'}) { return; }
149: if ($cenv{'keyaccess'} eq 'yes') {
150: return 'Removing key access: '.
151: &Apache::lonnet::del('environment',['keyaccess'],
152: $cenv{'domain'},$cenv{'num'});
153: } else {
154: return 'Establishing key access: '.
155: &Apache::lonnet::put('environment',{'keyaccess' => 'yes'},
156: $cenv{'domain'},$cenv{'num'});
157: }
158: }
159:
160: # --------------------------------------------------------------- Generate Keys
161:
162: sub genkeys {
163: my ($num,$comments,%cenv)=@_;
164: unless ($comments) { $comments=''; }
165: $comments=~s/\#/ /g;
166: $comments=~s/\;/ /g;
167: unless ($num) { return 'No number of keys given.'; }
168: unless (($num=~/^\d+$/) && ($num>0)) {
169: return 'Invalid number of keys given.';
170: }
171: my $batchnumber='BATCH_'.time().'_'.$$;
172: return 'Generated '.&Apache::lonnet::generate_access_keys
173: ($num,$cenv{'domain'},$cenv{'num'},$batchnumber.'; '.$comments).' of '.
174: $num.' access keys (Batch Number: '.$batchnumber.')',$batchnumber;
175: }
176:
177: ###################################################################
178: ###################################################################
179: sub handler {
180: my $r=shift;
181: if ($r->header_only) {
182: $r->content_type('text/html');
183: $r->send_http_header;
184: return OK;
185: }
186: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
187: ['state','cid']);
188: if (($ENV{'form.domain'}) && ($ENV{'form.course'})) {
189: $ENV{'form.cid'}=$ENV{'form.domain'}.'_'.$ENV{'form.course'};
190: }
191:
192: unless (&Apache::lonnet::allowed('mky',$ENV{'request.role.domain'})) {
193: $ENV{'user.error.msg'}=
194: "/adm/managekeys:mky:0:0:Cannot manage access keys";
195: return HTTP_NOT_ACCEPTABLE;
196: }
197: if ($ENV{'form.cid'}) {
198: my %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
199: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
200: #
201: # CSV Output
202: #
203: $r->content_type('text/csv');
204: #
205: # Do CSV
206: #
207: } else {
208: #
209: # Normal web stuff
210: #
211: $r->content_type('text/html');
212: $r->send_http_header;
213: $r->print(&header());
214:
215: $r->print(
216: '<input type="hidden" name="cid" value="'.$ENV{'form.cid'}.'" />');
217: # --- Actions
218: if ($ENV{'form.toggle'}) {
219: $r->print(&togglekeyaccess(%cenv).'<br />');
220: %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
221: }
222: my $batchnumber='';
223: if ($ENV{'form.genkeys'}) {
224: (my $msg,$batchnumber)=
225: &genkeys($ENV{'form.num'},$ENV{'form.comments'},%cenv);
226: $r->print($msg.'<br />');
227: }
228: if ($ENV{'form.listkeys'}) {
229: &show_key_list($r,$ENV{'form.listcom'},
230: $ENV{'form.newonly'},$ENV{'form.checkonly'},%cenv);
231: }
232: # --- Menu
233: $r->print('<h3>Key Access</h3>');
234: if ($cenv{'keyaccess'} eq 'yes') {
235: $r->print('Access to this course is key controlled.<br /><input type="submit" name="toggle" value="Open Access" />')
236: } else {
237: $r->print('Access to this course is open, no access keys.<br /><input type="submit" name="toggle" value="Control Access" />');
238: }
239: $r->print(<<ENDKEYMENU);
240: <hr /><h3>Generate New Keys</h3>
241: Number of keys to be generated: <input type="text" name="num" size="6" /><br />
242: Comments/Remarks/Notes: <input type="text" name="comments" size="30" /><br />
243: <input type="submit" name="genkeys" value="Generate Keys" />
244: <hr /><h3>List Keys</h3>
245: Comments/Remarks/Notes/User/Batch Number:
246: <input type="text" name="listcom" size="30" value="$batchnumber" /><br />
247: <input type="checkbox" name="newonly" /> Unused keys only<br />
248: <input type="checkbox" name="checkonly" />Used keys only<br />
249: <input type="submit" name="listkeys" value="List Keys" />
250: ENDKEYMENU
251: $r->print('</form></body></html>');
252: }
253: } else {
254: # Start page no course id
255: $r->content_type('text/html');
256: $r->send_http_header;
257: $r->print(&header().&Apache::loncommon::coursebrowser_javascript());
258: $r->print(
259: 'Course ID: <input input type="text" size="25" name="course" value="" />');
260: $r->print('Domain: '.&Apache::loncommon::select_dom_form(
261: $ENV{'request.role.domain'},'domain'));
262: $r->print(&Apache::loncommon::selectcourse_link(
263: 'keyform','course','domain'));
264: $r->print('<br /><input type="submit" value="Manage Access Keys" />');
265: $r->print('</form></body></html>');
266: }
267: return OK;
268: }
269:
270: ###################################################################
271: ###################################################################
272:
273: 1;
274: __END__
275:
276:
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