1: # The LearningOnline Network with CAPA
2: # Handler to manage course access keys
3: #
4: # $Id: lonmanagekeys.pm,v 1.5 2003/04/23 20:29:17 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: return 'Removing key access: '.
126: &Apache::lonnet::del('environment',['keyaccess'],
127: $cenv{'domain'},$cenv{'num'});
128: } else {
129: return 'Establishing key access: '.
130: &Apache::lonnet::put('environment',{'keyaccess' => 'yes'},
131: $cenv{'domain'},$cenv{'num'});
132: }
133: }
134:
135: # --------------------------------------------------------------- Generate Keys
136:
137: sub genkeys {
138: my ($num,$comments,%cenv)=@_;
139: unless ($comments) { $comments=''; }
140: $comments=~s/\#/ /g;
141: $comments=~s/\;/ /g;
142: unless ($num) { return 'No number of keys given.'; }
143: unless (($num=~/^\d+$/) && ($num>0)) {
144: return 'Invalid number of keys given.';
145: }
146: my $batchnumber='BATCH_'.time().'_'.$$;
147: return 'Generated '.&Apache::lonnet::generate_access_keys
148: ($num,$cenv{'domain'},$cenv{'num'},$batchnumber.'; '.$comments).' of '.
149: $num.' access keys (Batch Number: '.$batchnumber.')',$batchnumber;
150: }
151:
152: ###################################################################
153: ###################################################################
154: sub handler {
155: my $r=shift;
156: if ($r->header_only) {
157: $r->content_type('text/html');
158: $r->send_http_header;
159: return OK;
160: }
161: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
162: ['state','cid']);
163: if (($ENV{'form.domain'}) && ($ENV{'form.course'})) {
164: $ENV{'form.cid'}=$ENV{'form.domain'}.'_'.$ENV{'form.course'};
165: }
166:
167: unless (&Apache::lonnet::allowed('mky',$ENV{'request.role.domain'})) {
168: $ENV{'user.error.msg'}=
169: "/adm/managekeys:mky:0:0:Cannot manage access keys";
170: return HTTP_NOT_ACCEPTABLE;
171: }
172: if ($ENV{'form.cid'}) {
173: my %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
174: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
175: #
176: # CSV Output
177: #
178: $r->content_type('text/csv');
179: #
180: # Do CSV
181: #
182: } else {
183: #
184: # Normal web stuff
185: #
186: $r->content_type('text/html');
187: $r->send_http_header;
188: $r->print(&header());
189:
190: $r->print(
191: '<input type="hidden" name="cid" value="'.$ENV{'form.cid'}.'" />');
192: # --- Actions
193: if ($ENV{'form.toggle'}) {
194: $r->print(&togglekeyaccess(%cenv).'<br />');
195: %cenv=&Apache::lonnet::coursedescription($ENV{'form.cid'});
196: }
197: my $batchnumber='';
198: if ($ENV{'form.genkeys'}) {
199: (my $msg,$batchnumber)=
200: &genkeys($ENV{'form.num'},$ENV{'form.comments'},%cenv);
201: $r->print($msg.'<br />');
202: }
203: if ($ENV{'form.listkeys'}) {
204: &show_key_list($ENV{'form.listcom'},%cenv);
205: }
206: # --- Menu
207: $r->print('<h3>Key Access</h3>');
208: if ($cenv{'keyaccess'} eq 'yes') {
209: $r->print('Access to this course is key controlled.<br /><input type="submit" name="toggle" value="Open Access" />')
210: } else {
211: $r->print('Access to this course is open, no access keys.<br /><input type="submit" name="toggle" value="Control Access" />');
212: }
213: $r->print(<<ENDKEYMENU);
214: <hr /><h3>Generate New Keys</h3>
215: Number of keys to be generated: <input type="text" name="num" size="6" /><br />
216: Comments/Remarks/Notes: <input type="text" name="comments" size="30" /><br />
217: <input type="submit" name="genkeys" value="Generate Keys" />
218: <hr /><h3>List Keys</h3>
219: Comments/Remarks/Notes/Batch Number:
220: <input type="text" name="listcom" size="30" value="$batchnumber" /><br />
221: <input type="submit" name="listkeys" value="List Keys" />
222: ENDKEYMENU
223: $r->print('</form></body></html>');
224: }
225: } else {
226: # Start page no course id
227: $r->content_type('text/html');
228: $r->send_http_header;
229: $r->print(&header().&Apache::loncommon::coursebrowser_javascript());
230: $r->print(
231: 'Course ID: <input input type="text" size="25" name="course" value="" />');
232: $r->print('Domain: '.&Apache::loncommon::select_dom_form(
233: $ENV{'request.role.domain'},'domain'));
234: $r->print(&Apache::loncommon::selectcourse_link(
235: 'keyform','course','domain'));
236: $r->print('<br /><input type="submit" value="Manage Access Keys" />');
237: $r->print('</form></body></html>');
238: }
239: return OK;
240: }
241:
242: ###################################################################
243: ###################################################################
244:
245: 1;
246: __END__
247:
248:
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