1: # The LearningOnline Network with CAPA
2: # Handler to manage course access keys
3: #
4: # $Id: lonmanagekeys.pm,v 1.8 2003/05/02 13:00:19 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: $r->print('<table border="2"><tr><th>Key</th><th>Checked Out</th><th>Comments/Remarks/Notes</th><th>Enter Additional Comments/Remarks/Notes</th></tr>');
62: foreach (keys %accesskeys) {
63: if ($_=~/^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)).
75: '</td><td><input type="text" size="30" name="com_'.$_.
76: '" /></td></tr>');
77: }
78: }
79: $r->print('</table>');
80: $r->print('<input type="submit" name="addcom" value="Add Above Comments to Keys" />');
81: return '';
82: #
83: # Junk below
84: #
85: my ($mode,$linkto,$action,$statusmode,$classlist,$keylist);
86: #
87: # Just junk so that this compiles
88: #
89: my ($username,$domain,$id,$name,$section,$status,@Sorted_Students);
90: #
91: #
92: #
93: my $cid=$ENV{'form.cid'};
94: #
95: # Variables for excel output
96: my ($excel_workbook, $excel_sheet, $excel_filename,$row);
97: #
98:
99: # Print out header
100: if ($mode eq 'view') {
101: } elsif ($mode eq 'excel') {
102: # Create the excel spreadsheet
103: $excel_filename = '/prtspool/'.
104: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
105: time.'_'.rand(1000000000).'.xls';
106: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
107: $excel_filename);
108: $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
109: $excel_sheet = $excel_workbook->addworksheet('classlist');
110: #
111: my $description = 'Classlist for '.
112: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
113: $excel_sheet->write($row++,0,$description);
114: #
115: $excel_sheet->write($row++,0,["username","domain","ID",
116: "student name","section","status"]);
117: }
118: foreach my $student (@Sorted_Students) {
119: if ($mode eq 'view') {
120: } elsif ($mode eq 'csv') {
121: # no need to bother with $linkto
122: my @line = ();
123: foreach ($username,$domain,$id,$name,$section) {
124: push @line,&Apache::loncommon::csv_translate($_);
125: }
126: if ($statusmode eq 'Any') {
127: push @line,&Apache::loncommon::csv_translate($status);
128: }
129: my $tmp = $";
130: $" = '","';
131: $r->print("\"@line\"\n");
132: $" = $tmp;
133: } elsif ($mode eq 'excel') {
134: $excel_sheet->write($row++,0,[$username,$domain,$id,
135: $name,$section,$status]);
136: }
137: }
138: if ($mode eq 'view') {
139: } elsif ($mode eq 'excel') {
140: $excel_workbook->close();
141: $r->print('<p><a href="'.$excel_filename.'">'.
142: 'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
143: }
144: }
145:
146:
147: # ----------------------------------------------------------- Toggle Key Access
148:
149: sub togglekeyaccess {
150: my %cenv=@_;
151: unless ($cenv{'domain'}) { return; }
152: if ($cenv{'keyaccess'} eq 'yes') {
153: return 'Removing key access: '.
154: &Apache::lonnet::del('environment',['keyaccess'],
155: $cenv{'domain'},$cenv{'num'});
156: } else {
157: return 'Establishing key access: '.
158: &Apache::lonnet::put('environment',{'keyaccess' => 'yes'},
159: $cenv{'domain'},$cenv{'num'});
160: }
161: }
162:
163: # --------------------------------------------------------------- Generate Keys
164:
165: sub genkeys {
166: my ($num,$comments,%cenv)=@_;
167: unless ($comments) { $comments=''; }
168: $comments=~s/\#/ /g;
169: $comments=~s/\;/ /g;
170: unless ($num) { return 'No number of keys given.'; }
171: unless (($num=~/^\d+$/) && ($num>0)) {
172: return 'Invalid number of keys given.';
173: }
174: my $batchnumber='BATCH_'.time().'_'.$$;
175: return 'Generated '.&Apache::lonnet::generate_access_keys
176: ($num,$cenv{'domain'},$cenv{'num'},$batchnumber.'; '.$comments).' of '.
177: $num.' access keys (Batch Number: '.$batchnumber.')',$batchnumber;
178: }
179:
180: ###################################################################
181: ###################################################################
182: sub handler {
183: my $r=shift;
184: if ($r->header_only) {
185: $r->content_type('text/html');
186: $r->send_http_header;
187: return OK;
188: }
189: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
190: ['state','cid']);
191: if (($ENV{'form.domain'}) && ($ENV{'form.course'})) {
192: $ENV{'form.cid'}=$ENV{'form.domain'}.'_'.$ENV{'form.course'};
193: }
194:
195: unless (&Apache::lonnet::allowed('mky',$ENV{'request.role.domain'})) {
196: $ENV{'user.error.msg'}=
197: "/adm/managekeys:mky:0:0:Cannot manage access keys";
198: return HTTP_NOT_ACCEPTABLE;
199: }
200: if ($ENV{'form.cid'}) {
201: my %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
202: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
203: #
204: # CSV Output
205: #
206: $r->content_type('text/csv');
207: #
208: # Do CSV
209: #
210: } else {
211: #
212: # Normal web stuff
213: #
214: $r->content_type('text/html');
215: $r->send_http_header;
216: $r->print(&header());
217:
218: $r->print(
219: '<input type="hidden" name="cid" value="'.$ENV{'form.cid'}.'" />');
220: # --- Actions
221: if ($ENV{'form.toggle'}) {
222: $r->print(&togglekeyaccess(%cenv).'<br />');
223: %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
224: }
225: my $batchnumber='';
226: if ($ENV{'form.genkeys'}) {
227: (my $msg,$batchnumber)=
228: &genkeys($ENV{'form.num'},$ENV{'form.comments'},%cenv);
229: $r->print($msg.'<br />');
230: }
231: if ($ENV{'form.listkeys'}) {
232: &show_key_list($r,$ENV{'form.listcom'},
233: $ENV{'form.newonly'},$ENV{'form.checkonly'},%cenv);
234: }
235: # --- Menu
236: $r->print('<h3>Key Access</h3>');
237: if ($cenv{'keyaccess'} eq 'yes') {
238: $r->print('Access to this course is key controlled.<br /><input type="submit" name="toggle" value="Open Access" />')
239: } else {
240: $r->print('Access to this course is open, no access keys.<br /><input type="submit" name="toggle" value="Control Access" />');
241: }
242: $r->print(<<ENDKEYMENU);
243: <hr /><h3>Generate New Keys</h3>
244: Number of keys to be generated: <input type="text" name="num" size="6" /><br />
245: Comments/Remarks/Notes: <input type="text" name="comments" size="30" /><br />
246: <input type="submit" name="genkeys" value="Generate Keys" />
247: <hr /><h3>List Keys</h3>
248: Comments/Remarks/Notes/User/Batch Number:
249: <input type="text" name="listcom" size="30" value="$batchnumber" /><br />
250: <input type="checkbox" name="newonly" /> Unused keys only<br />
251: <input type="checkbox" name="checkonly" /> Used keys only<br />
252: <input type="submit" name="listkeys" value="List Keys" />
253: ENDKEYMENU
254: $r->print('</form></body></html>');
255: }
256: } else {
257: # Start page no course id
258: $r->content_type('text/html');
259: $r->send_http_header;
260: $r->print(&header().&Apache::loncommon::coursebrowser_javascript());
261: $r->print(
262: 'Course ID: <input input type="text" size="25" name="course" value="" />');
263: $r->print('Domain: '.&Apache::loncommon::select_dom_form(
264: $ENV{'request.role.domain'},'domain'));
265: $r->print(&Apache::loncommon::selectcourse_link(
266: 'keyform','course','domain'));
267: $r->print('<br /><input type="submit" value="Manage Access Keys" />');
268: $r->print('</form></body></html>');
269: }
270: return OK;
271: }
272:
273: ###################################################################
274: ###################################################################
275:
276: 1;
277: __END__
278:
279:
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