File:
[LON-CAPA] /
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interface /
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londropadd.pm
Revision
1.87:
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Wed Nov 5 20:55:59 2003 UTC (20 years, 8 months ago) by
matthew
Branches:
MAIN
CVS tags:
HEAD
Fixed bug which made it impossible to revoke the role of student for a
student who had previously had a section but later did not have a section.
Some better error reporting was added as well (returning '666' on error
doesn't seem like a bright idea now).
1: # The LearningOnline Network with CAPA
2: # Handler to drop and add students in courses
3: #
4: # $Id: londropadd.pm,v 1.87 2003/11/05 20:55:59 matthew 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: # (Handler to set parameters for assessments
29: #
30: # (Handler to resolve ambiguous file locations
31: #
32: # (TeX Content Handler
33: #
34: ###############################################################
35: ##############################################################
36:
37: package Apache::londropadd;
38:
39: use strict;
40: use Apache::lonnet();
41: use Apache::loncommon();
42: use Apache::lonhtmlcommon();
43: use Apache::Constants qw(:common :http REDIRECT);
44: use Spreadsheet::WriteExcel;
45: use Apache::lonlocal;
46:
47: ###############################################################
48: ###############################################################
49: sub header {
50: my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager');
51: return(<<ENDHEAD);
52: <html>
53: <head>
54: <title>LON-CAPA Enrollment Manager</title>
55: </head>
56: $bodytag
57: <form method="post" enctype="multipart/form-data"
58: action="/adm/dropadd" name="studentform">
59: ENDHEAD
60: }
61:
62: ###############################################################
63: ###############################################################
64: # Drop student from all sections of a course, except optional $csec
65: sub modifystudent {
66: my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
67: # if $csec is undefined, drop the student from all the courses matching
68: # this one. If $csec is defined, drop them from all other sections of
69: # this course and add them to section $csec
70: $courseid=~s/\_/\//g;
71: $courseid=~s/^(\w)/\/$1/;
72: my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
73: my ($tmp) = keys(%roles);
74: # Bail out if we were unable to get the students roles
75: return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
76: # Go through the roles looking for enrollment in this course
77: my $result = '';
78: foreach my $course (keys(%roles)) {
79: if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
80: # We are in this course
81: my $section=$1;
82: $section='' if ($course eq $courseid.'_st');
83: if (defined($csec) && $section eq $csec) {
84: $result .= 'ok:';
85: } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
86: my (undef,$end,$start)=split(/\_/,$roles{$course});
87: my $now=time;
88: # if this is an active role
89: if (!($start && ($now<$start)) || !($end && ($now>$end))) {
90: my $reply=&Apache::lonnet::modifystudent
91: # dom name id mode pass f m l g
92: ($udom,$unam,'', '', '',undef,undef,undef,undef,
93: $section,time,undef,undef,$desiredhost);
94: $result .= $reply.':';
95: }
96: }
97: }
98: }
99: if ($result eq '') {
100: $result = 'Unable to find section for this student';
101: } else {
102: $result =~ s/(ok:)+/ok/g;
103: }
104: return $result;
105: }
106:
107: ###############################################################
108: ###############################################################
109: # build a domain and server selection form
110: sub domain_form {
111: my ($defdom) = @_;
112: # Set up domain and server selection forms
113: #
114: # Get the domains
115: my @domains = &Apache::loncommon::get_domains();
116: # build up the menu information to be passed to
117: # &Apache::loncommon::linked_select_forms
118: my %select_menus;
119: foreach my $dom (@domains) {
120: # set up the text for this domain
121: $select_menus{$dom}->{'text'}= $dom;
122: # we want a choice of 'default' as the default in the second menu
123: $select_menus{$dom}->{'default'}= 'default';
124: $select_menus{$dom}->{'select2'}->{'default'} = 'default';
125: # Now build up the other items in the second menu
126: my %servers = &Apache::loncommon::get_library_servers($dom);
127: foreach my $server (keys(%servers)) {
128: $select_menus{$dom}->{'select2'}->{$server}
129: = "$server $servers{$server}";
130: }
131: }
132: my $result = &Apache::loncommon::linked_select_forms
133: ('studentform',' with home server ',$defdom,
134: 'lcdomain','lcserver',\%select_menus);
135: return $result;
136: }
137:
138: ###############################################################
139: ###############################################################
140: # Menu Phase One
141: sub print_main_menu {
142: my $r=shift;
143: $r->print(<<END);
144: <p>
145: <font size="+1">
146: <a href="/adm/dropadd?action=upload">Upload a course list</a>
147: </font>
148: </p><p>
149: <font size="+1">
150: <a href="/adm/dropadd?action=enrollstudent">Enroll a single student</a>
151: </font>
152: </p><p>
153: <font size="+1">
154: <a href="/adm/dropadd?action=modifystudent">Modify student data</a>
155: </font>
156: </p><p>
157: <font size="+1">
158: <a href="/adm/dropadd?action=classlist">View Class List</a>
159: </font>
160: </p><p>
161: <font size="+1">
162: <a href="/adm/dropadd?action=drop">Drop Students</a>
163: </font>
164: </p>
165: END
166: }
167:
168: ###############################################################
169: ###############################################################
170: sub print_upload_manager_header {
171: my ($r,$datatoken,$distotal,$krbdefdom)=@_;
172: my $javascript;
173: if (! exists($ENV{'form.upfile_associate'})) {
174: $ENV{'form.upfile_associate'} = 'forward';
175: }
176: if ($ENV{'form.associate'} eq 'Reverse Association') {
177: if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
178: $ENV{'form.upfile_associate'} = 'reverse';
179: } else {
180: $ENV{'form.upfile_associate'} = 'forward';
181: }
182: }
183: if ($ENV{'form.upfile_associate'} eq 'reverse') {
184: $javascript=&upload_manager_javascript_reverse_associate();
185: } else {
186: $javascript=&upload_manager_javascript_forward_associate();
187: }
188: my $javascript_validations=&javascript_validations($krbdefdom);
189: my $checked=(($ENV{'form.noFirstLine'})?' checked="1"':'');
190: $r->print(<<ENDPICK);
191: <h3>Uploading Class List</h3>
192: <hr>
193: <h3>Identify fields</h3>
194: Total number of records found in file: $distotal <hr />
195: Enter as many fields as you can. The system will inform you and bring you back
196: to this page if the data selected is insufficient to run your class.<hr />
197: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
198: <input type="hidden" name="action" value="upload" />
199: <input type="hidden" name="state" value="got_file" />
200: <input type="hidden" name="associate" value="" />
201: <input type="hidden" name="datatoken" value="$datatoken" />
202: <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
203: <input type="checkbox" name="noFirstLine" $checked />Ignore First Line
204: <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
205: <input type="hidden" name="upfile_associate"
206: value="$ENV{'form.upfile_associate'}" />
207: <hr />
208: <script type="text/javascript" language="Javascript">
209: $javascript
210: $javascript_validations
211: </script>
212: ENDPICK
213: }
214:
215: ###############################################################
216: ###############################################################
217: sub javascript_validations {
218: my ($krbdefdom)=@_;
219: my %param = ( formname => 'studentform',
220: kerb_def_dom => $krbdefdom );
221: my $authheader = &Apache::loncommon::authform_header(%param);
222: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
223: return (<<ENDPICK);
224: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
225: var foundatype=0;
226: var message='';
227: if (founduname==0) {
228: alert('You need to specify the username field');
229: return;
230: }
231: // alert('current.radiovalue = '+current.radiovalue);
232: if (current.radiovalue == null || current.radiovalue == 'nochange') {
233: // They did not check any of the login radiobuttons.
234: alert('You must choose an authentication type');
235: return;
236: }
237: foundatype=1;
238: if (current.argfield == null || current.argfield == '') {
239: var alertmsg = '';
240: switch (current.value) {
241: case 'krb':
242: alertmsg = 'You need to specify the Kerberos domain';
243: break;
244: case 'loc':
245: case 'fsys':
246: alertmsg = 'You need to specify the initial password';
247: break;
248: case 'fsys':
249: alertmsg = '';
250: break;
251: default:
252: alertmsg = '';
253: }
254: if (alertmsg != '') {
255: alert(alertmsg);
256: return;
257: }
258: }
259:
260: if (foundname==0) { message='name fields'; }
261: if (foundid==0) { if (message!='') { message+=', '; } message+='student number field'; }
262: if (foundsec==0) { if (message!='') { message+=', '; } message+='section or group field'; }
263: if (foundemail==0) { if (message!='') { message+=', '; } message+='email address field'; }
264: if (message!='') {
265: message='Not specified (optional): '+message+'. Continue enrollment?';
266: if (confirm(message)) {
267: vf.state.value='enrolling';
268: vf.submit();
269: }
270: } else {
271: vf.state.value='enrolling';
272: vf.submit();
273: }
274: }
275:
276: $authheader
277: ENDPICK
278:
279: }
280:
281: sub javascript_validations_without_auth {
282: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
283: return (<<ENDPICK);
284: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
285: var foundatype=0;
286: var message='';
287: if (founduname==0) {
288: alert('You need to specify the username field');
289: return;
290: }
291: if (foundname==0) { message='name fields'; }
292: if (foundid==0) { if (message!='') { message+=', '; } message+='student number field'; }
293: if (foundsec==0) { if (message!='') { message+=', '; } message+='section or group field'; }
294: if (foundemail==0) { if (message!='') { message+=', '; } message+='email address field'; }
295: if (message!='') {
296: message='Not specified (optional): '+message+'. Continue enrollment?';
297: if (confirm(message)) {
298: vf.state.value='enrolling';
299: vf.submit();
300: }
301: } else {
302: vf.state.value='enrolling';
303: vf.submit();
304: }
305: }
306:
307: ENDPICK
308:
309: }
310:
311: ###############################################################
312: ###############################################################
313: sub upload_manager_javascript_forward_associate {
314: return(<<ENDPICK);
315: function verify(vf) {
316: var founduname=0;
317: var foundpwd=0;
318: var foundname=0;
319: var foundid=0;
320: var foundsec=0;
321: var foundemail=0;
322: var tw;
323: for (i=0;i<=vf.nfields.value;i++) {
324: tw=eval('vf.f'+i+'.selectedIndex');
325: if (tw==1) { founduname=1; }
326: if ((tw>=2) && (tw<=6)) { foundname=1; }
327: if (tw==7) { foundid=1; }
328: if (tw==8) { foundsec=1; }
329: if (tw==9) { foundpwd=1; }
330: if (tw==10) { foundemail=1; }
331: }
332: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
333: }
334:
335: //
336: // vf = this.form
337: // tf = column number
338: //
339: // values of nw
340: //
341: // 0 = none
342: // 1 = username
343: // 2 = names (lastname, firstnames)
344: // 3 = fname (firstname)
345: // 4 = mname (middlename)
346: // 5 = lname (lastname)
347: // 6 = gen (generation)
348: // 7 = id
349: // 8 = section
350: // 9 = ipwd (password)
351: // 10 = email address
352:
353: function flip(vf,tf) {
354: var nw=eval('vf.f'+tf+'.selectedIndex');
355: var i;
356: // make sure no other columns are labeled the same as this one
357: for (i=0;i<=vf.nfields.value;i++) {
358: if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
359: eval('vf.f'+i+'.selectedIndex=0;')
360: }
361: }
362: // If we set this to 'lastname, firstnames', clear out all the ones
363: // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
364: if (nw==2) {
365: for (i=0;i<=vf.nfields.value;i++) {
366: if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
367: (eval('vf.f'+i+'.selectedIndex')<=6)) {
368: eval('vf.f'+i+'.selectedIndex=0;')
369: }
370: }
371: }
372: // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
373: // clear out any that are set to 'lastname, firstnames' (2)
374: if ((nw>=3) && (nw<=6)) {
375: for (i=0;i<=vf.nfields.value;i++) {
376: if (eval('vf.f'+i+'.selectedIndex')==2) {
377: eval('vf.f'+i+'.selectedIndex=0;')
378: }
379: }
380: }
381: // If we set the password, make the password form below correspond to
382: // the new value.
383: if (nw==9) {
384: changed_radio('int',document.studentform);
385: set_auth_radio_buttons('int',document.studentform);
386: vf.intarg.value='';
387: vf.krbarg.value='';
388: vf.locarg.value='';
389: }
390: }
391:
392: function clearpwd(vf) {
393: var i;
394: for (i=0;i<=vf.nfields.value;i++) {
395: if (eval('vf.f'+i+'.selectedIndex')==9) {
396: eval('vf.f'+i+'.selectedIndex=0;')
397: }
398: }
399: }
400:
401: ENDPICK
402: }
403:
404: ###############################################################
405: ###############################################################
406: sub upload_manager_javascript_reverse_associate {
407: return(<<ENDPICK);
408: function verify(vf) {
409: var founduname=0;
410: var foundpwd=0;
411: var foundname=0;
412: var foundid=0;
413: var foundsec=0;
414: var tw;
415: for (i=0;i<=vf.nfields.value;i++) {
416: tw=eval('vf.f'+i+'.selectedIndex');
417: if (i==0 && tw!=0) { founduname=1; }
418: if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
419: if (i==6 && tw!=0) { foundid=1; }
420: if (i==7 && tw!=0) { foundsec=1; }
421: if (i==8 && tw!=0) { foundpwd=1; }
422: }
423: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
424: }
425:
426: function flip(vf,tf) {
427: var nw=eval('vf.f'+tf+'.selectedIndex');
428: var i;
429: // picked the all one one name field, reset the other name ones to blank
430: if (tf==1 && nw!=0) {
431: for (i=2;i<=5;i++) {
432: eval('vf.f'+i+'.selectedIndex=0;')
433: }
434: }
435: //picked one of the piecewise name fields, reset the all in
436: //one field to blank
437: if ((tf>=2) && (tf<=5) && (nw!=0)) {
438: eval('vf.f1.selectedIndex=0;')
439: }
440: // intial password specified, pick internal authentication
441: if (tf==8 && nw!=0) {
442: changed_radio('int',document.studentform);
443: set_auth_radio_buttons('int',document.studentform);
444: vf.krbarg.value='';
445: vf.intarg.value='';
446: vf.locarg.value='';
447: }
448: }
449:
450: function clearpwd(vf) {
451: var i;
452: if (eval('vf.f8.selectedIndex')!=0) {
453: eval('vf.f8.selectedIndex=0;')
454: }
455: }
456: ENDPICK
457: }
458:
459: ###############################################################
460: ###############################################################
461: sub print_upload_manager_footer {
462: my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
463:
464: my ($krbdef,$krbdefdom) =
465: &Apache::loncommon::get_kerberos_defaults($defdom);
466: my %param = ( formname => 'document.studentform',
467: kerb_def_dom => $krbdefdom,
468: kerb_def_auth => $krbdef
469: );
470: my $krbform = &Apache::loncommon::authform_kerberos(%param);
471: my $intform = &Apache::loncommon::authform_internal(%param);
472: my $locform = &Apache::loncommon::authform_local(%param);
473: my $domform = &domain_form($defdom);
474: my $date_table = &date_setting_table();
475: $r->print(<<ENDPICK);
476: </table>
477: <input type=hidden name=nfields value=$i>
478: <input type=hidden name=keyfields value="$keyfields">
479: <h3>Login Type</h3>
480: <p>Note: this will not take effect if the user already exists</p>
481: <p>
482: $krbform
483: </p>
484: <p>
485: $intform
486: </p>
487: <p>
488: $locform
489: </p>
490: <h3>LON-CAPA Domain for Students</h3>
491: LON-CAPA domain: $domform <p>
492: <h3>Starting and Ending Dates</h3>
493: <p>
494: $date_table
495: </p>
496: <h3>Full Update</h3>
497: <input type=checkbox name=fullup value=yes> Full update
498: (also print list of users not enrolled anymore)<p>
499: <h3>ID/Student Number</h3>
500: <input type=checkbox name=forceid value=yes>
501: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
502: (only do if you know what you are doing)<p>
503: <input type="button" onClick="javascript:verify(this.form)" value="Update Courselist" /><br />
504: Note: for large courses, this operation may be time consuming.
505: ENDPICK
506: }
507:
508: # ======================================================= Menu Phase Two Upload
509: sub print_upload_manager_form {
510: my $r=shift;
511: my $firstLine;
512: my $datatoken;
513: if (!$ENV{'form.datatoken'}) {
514: $datatoken=&Apache::loncommon::upfile_store($r);
515: } else {
516: $datatoken=$ENV{'form.datatoken'};
517: &Apache::loncommon::load_tmp_file($r);
518: }
519: my @records=&Apache::loncommon::upfile_record_sep();
520: if($ENV{'form.noFirstLine'}){$firstLine=shift(@records);}
521: my $total=$#records;
522: my $distotal=$total+1;
523: my $today=time;
524: my $halfyear=$today+15552000;
525: my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
526: my ($krbdef,$krbdefdom) =
527: &Apache::loncommon::get_kerberos_defaults($defdom);
528: &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
529: my $i;
530: my $keyfields;
531: if ($total>=0) {
532: my @d=(['username','Username'],
533: ['names','Last Name, First Names'],
534: ['fname','First Name'],
535: ['mname','Middle Names/Initials'],
536: ['lname','Last Name'],
537: ['gen','Generation'],
538: ['id','ID/Student Number'],
539: ['sec','Group/Section'],
540: ['ipwd','Initial Password'],
541: ['email','EMail Address']);
542: if ($ENV{'form.upfile_associate'} eq 'reverse') {
543: &Apache::loncommon::csv_print_samples($r,\@records);
544: $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
545: foreach (@d) { $keyfields.=$_->[0].','; }
546: chop($keyfields);
547: } else {
548: unshift(@d,['none','']);
549: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
550: my %sone=&Apache::loncommon::record_sep($records[0]);
551: $keyfields=join(',',sort(keys(%sone)));
552: }
553: }
554: &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
555: }
556:
557: # ======================================================= Enroll single student
558: sub enroll_single_student {
559: my $r=shift;
560: # Remove non alphanumeric values from section
561: $ENV{'form.csec'}=~s/\W//g;
562: #
563: # We do the dates first because the action of making them the defaul
564: # in the course is entirely seperate from the action of enrolling the
565: # student. Also, a failure in setting the dates as default is not fatal
566: # to the process of enrolling / modifying a student.
567: my ($startdate,$enddate) = &get_dates_from_form();
568: if ($ENV{'form.makedatesdefault'}) {
569: $r->print(&make_dates_default($startdate,$enddate));
570: }
571:
572: $r->print('<h3>Enrolling Student</h3>');
573: $r->print('<p>Enrolling '.$ENV{'form.cuname'}." \@ ".
574: $ENV{'form.lcdomain'}.'</p>');
575: if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
576: ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
577: # Deal with home server selection
578: my $domain=$ENV{'form.lcdomain'};
579: my $desiredhost = $ENV{'form.lcserver'};
580: if (lc($desiredhost) eq 'default') {
581: $desiredhost = undef;
582: } else {
583: my %home_servers =&Apache::loncommon::get_library_servers($domain);
584: if (! exists($home_servers{$desiredhost})) {
585: $r->print('<font color="#ff0000">Error:</font>'.
586: 'Invalid home server specified');
587: return;
588: }
589: }
590: $r->print(" with server $desiredhost :") if (defined($desiredhost));
591: # End of home server selection logic
592: my $amode='';
593: my $genpwd='';
594: if ($ENV{'form.login'} eq 'krb') {
595: $amode='krb';
596: $amode.=$ENV{'form.krbver'};
597: $genpwd=$ENV{'form.krbarg'};
598: } elsif ($ENV{'form.login'} eq 'int') {
599: $amode='internal';
600: $genpwd=$ENV{'form.intarg'};
601: } elsif ($ENV{'form.login'} eq 'loc') {
602: $amode='localauth';
603: $genpwd=$ENV{'form.locarg'};
604: if (!$genpwd) { $genpwd=" "; }
605: }
606: my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'},
607: $ENV{'form.lcdomain'});
608: if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
609: # Clean out any old roles the student has in this class.
610: &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
611: $ENV{'request.course.id'},$ENV{'form.csec'},
612: $desiredhost);
613: my $login_result = &Apache::lonnet::modifystudent
614: ($ENV{'form.lcdomain'},$ENV{'form.cuname'},
615: $ENV{'form.cstid'},$amode,$genpwd,
616: $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
617: $ENV{'form.clast'},$ENV{'form.cgen'},
618: $ENV{'form.csec'},$enddate,
619: $startdate,$ENV{'form.forceid'},
620: $desiredhost);
621: if ($login_result =~ /^ok/) {
622: $r->print($login_result);
623: $r->print("<p> If active, the new role will be available ".
624: "when the student next logs in to LON-CAPA.</p>");
625: } else {
626: $r->print("unable to enroll: ".$login_result);
627: }
628: } else {
629: $r->print('<p><font color="#ff0000">ERROR</font> ');
630: if ($amode =~ /^krb/) {
631: $r->print('Missing Kerberos domain information. ');
632: } else {
633: $r->print('Invalid login mode or password. ');
634: }
635: $r->print('<b>Unable to enroll '.$ENV{'form.cuname'}.'.</b></p>');
636: }
637: } else {
638: $r->print('Invalid username or domain');
639: }
640: }
641:
642: sub setup_date_selectors {
643: my ($starttime,$endtime) = @_;
644: if (! defined($starttime)) {
645: $starttime = time;
646: if (exists($ENV{'course.'.$ENV{'request.course.id'}.
647: '.default_enrollment_start_date'})) {
648: $starttime = $ENV{'course.'.$ENV{'request.course.id'}.
649: '.default_enrollment_start_date'};
650: }
651: }
652: if (! defined($endtime)) {
653: $endtime = time+(6*30*24*60*60); # 6 months from now, approx
654: if (exists($ENV{'course.'.$ENV{'request.course.id'}.
655: '.default_enrollment_end_date'})) {
656: $endtime = $ENV{'course.'.$ENV{'request.course.id'}.
657: '.default_enrollment_end_date'};
658: }
659: }
660: my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
661: 'startdate',
662: $starttime);
663: my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
664: 'enddate',
665: $endtime);
666: return ($startdateform,$enddateform);
667: }
668:
669: sub get_dates_from_form {
670: my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
671: my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate');
672: if ($ENV{'form.no_end_date'}) {
673: $enddate = 0;
674: }
675: return ($startdate,$enddate);
676: }
677:
678: sub date_setting_table {
679: my ($starttime,$endtime) = @_;
680: my ($startform,$endform)=&setup_date_selectors($starttime,$endtime);
681: my $dateDefault = '<nobr>'.
682: '<input type="checkbox" name="makedatesdefault" />'.
683: ' make these dates the default for future enrollment';
684: my $perpetual = '<nobr><input type="checkbox" name="no_end_date"';
685: if (defined($endtime) && $endtime == 0) {
686: $perpetual .= ' checked';
687: }
688: $perpetual.= ' />'.' no ending date</nobr>';
689: my $result = '';
690: $result .= "<table>\n";
691: $result .= '<tr><td align="right">Starting Date</td>'.
692: '<td>'.$startform.'</td>'.
693: '<td>'.$dateDefault.'</td>'."</tr>\n";
694: $result .= '<tr><td align="right">Ending Date</td>'.
695: '<td>'.$endform.'</td>'.
696: '<td>'.$perpetual.'</td>'."</tr>\n";
697: $result .= "</table>\n";
698: return $result;
699: }
700:
701: sub make_dates_default {
702: my ($startdate,$enddate) = @_;
703: my $result = '';
704: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
705: my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
706: my $put_result = &Apache::lonnet::put('environment',
707: {'default_enrollment_start_date'=>$startdate,
708: 'default_enrollment_end_date' =>$enddate},$dom,$crs);
709: if ($put_result eq 'ok') {
710: $result .= "Set default start and end dates for course<br />";
711: #
712: # Refresh the course environment
713: &Apache::lonnet::coursedescription($ENV{'request.course.id'});
714: } else {
715: $result .= "Unable to set default dates for course:".$put_result.
716: '<br />';
717: }
718: return $result;
719: }
720:
721: ##
722: ## Single student enrollment routines (some of them)
723: ##
724: sub get_student_username_domain_form {
725: my $r = shift;
726: my $domform = &Apache::loncommon::select_dom_form
727: ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'},'cudomain',0);
728: $r->print(<<END);
729: <input type="hidden" name="action" value="enrollstudent" />
730: <input type="hidden" name="state" value="gotusername" />
731: <h3>Enroll One Student</h3>
732: <table>
733: <tr><th>Username:</th>
734: <td><input type="text" name="cuname" size="15" /></td></tr>
735: <tr><th>Domain:</th>
736: <td>$domform</td></tr>
737: <tr><th> </th>
738: <td>
739: <input type="submit" name="Begin Enrollment" value="Begin Enrollment" />
740: </td></tr>
741: </table>
742: END
743: return;
744: }
745:
746: sub print_enroll_single_student_form {
747: my $r=shift;
748: $r->print("<h3>Enroll One Student</h3>");
749: #
750: my $username = $ENV{'form.cuname'};
751: my $domain = $ENV{'form.cudomain'};
752: my $home = &Apache::lonnet::homeserver($username,$domain);
753: # $new_user flags whether we are creating a new user or using an old one
754: my $new_user = 1;
755: if ($home ne 'no_host') {
756: $new_user = 0;
757: }
758: #
759: my $user_data_html = '';
760: my $javascript_validations = '';
761: if ($new_user) {
762: my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
763: # Set up authentication forms
764: my ($krbdef,$krbdefdom) =
765: &Apache::loncommon::get_kerberos_defaults($domain);
766: $javascript_validations=&javascript_validations($krbdefdom);
767: my %param = ( formname => 'document.studentform',
768: kerb_def_dom => $krbdefdom,
769: kerb_def_auth => $krbdef
770: );
771: my $krbform = &Apache::loncommon::authform_kerberos(%param);
772: my $intform = &Apache::loncommon::authform_internal(%param);
773: my $locform = &Apache::loncommon::authform_local(%param);
774: #
775: # Set up domain selection form
776: my $homeserver_form = '';
777: my %servers = &Apache::loncommon::get_library_servers($domain);
778: $homeserver_form = '<select name="lcserver" size="1">'."\n".
779: '<option value="default" selected>default</option>'."\n";
780: while (my ($servername,$serverdescription) = each (%servers)) {
781: $homeserver_form .= '<option value="'.$servername.'">'.
782: $serverdescription."</option>\n";
783: }
784: $homeserver_form .= "</select>\n";
785: #
786: #
787: $user_data_html = <<END;
788: <h3>User Data for $username\@$domain</h3>
789: <table>
790: <tr><th>First Name:</th>
791: <td><input type="text" name="cfirst" size="15"></td></tr>
792: <tr><th>Middle Name:</th>
793: <td><input type="text" name="cmiddle" size="15"></td></tr>
794: <tr><th>Last Name:</th>
795: <td><input type="text" name="clast" size="15"></td></tr>
796: <tr><th>Generation:</th>
797: <td><input type="text" name="cgen" size="5"> </td></tr>
798: <tr><th>Home Server:</th>
799: <td>$homeserver_form</td></tr>
800: </table>
801: <h3>Password</h3>
802: Please select an authentication mechanism
803: <table>
804: <p>
805: $krbform
806: <br />
807: $intform
808: <br />
809: $locform
810: </p>
811: END
812: } else {
813: # User already exists. Do not worry about authentication
814: my %uenv = &Apache::lonnet::dump('environment',$domain,$username);
815: $javascript_validations = &javascript_validations_without_auth();
816: $user_data_html = <<END;
817: <h3>User Data for $username\@$domain</h3>
818: <input type="hidden" name="lcserver" value="default" />
819: <table>
820: <tr><th>First Name:</th>
821: <td>
822: <input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" />
823: </td></tr>
824: <tr><th>Middle Name:</th>
825: <td>
826: <input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" />
827: </td></tr>
828: <tr><th>Last Name:</th>
829: <td>
830: <input type="text" name="clast"value="$uenv{'lastname'}" size="15" />
831: </td></tr>
832: <tr><th>Generation:</th>
833: <td>
834: <input type="text" name="cgen" value="$uenv{'generation'}" size="5" />
835: </td></tr>
836: </table>
837: END
838: }
839: my $date_table = &date_setting_table();
840: # Print it all out
841: $r->print(<<END);
842: <input type="hidden" name="action" value="enrollstudent" />
843: <input type="hidden" name="state" value="done" />
844: <input type="hidden" name="cuname" value="$username" />
845: <input type="hidden" name="lcdomain" value="$domain" />
846: <script type="text/javascript" language="Javascript">
847: function verify(vf) {
848: var founduname=0;
849: var foundpwd=0;
850: var foundname=0;
851: var foundid=0;
852: var foundsec=0;
853: var tw;
854: if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') &&
855: (typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
856: founduname=1;
857: }
858: if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
859: (typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
860: foundname=1;
861: }
862: if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
863: foundsec=1;
864: }
865: if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
866: foundid=1;
867: }
868: if (founduname==0) {
869: alert('You need to specify at least the username and domain fields');
870: return;
871: }
872: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
873: }
874:
875: $javascript_validations
876:
877: function clearpwd(vf) {
878: //nothing else needs clearing
879: }
880:
881: </script>
882:
883: $user_data_html
884:
885: <h3>Course Data</h3>
886:
887: <p>Group/Section: <input type="text" name="csec" size="5" />
888: <p>
889: $date_table
890: </p>
891: <h3>ID/Student Number</h3>
892: <p>
893: ID/Student Number: <input type="text" name="cstid" size="10">
894: </p><p>
895: <input type="checkbox" name="forceid" value="yes">
896: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
897: (only do if you know what you are doing)
898: </p><p>
899: <input type="button" onClick="verify(this.form)" value="Enroll as student">
900: </p>
901: END
902: return;
903: }
904:
905: # ========================================================= Menu Phase Two Drop
906: sub print_drop_menu {
907: my $r=shift;
908: $r->print("<h3>Drop Students</h3>");
909: my $cid=$ENV{'request.course.id'};
910: my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
911: if (! defined($classlist)) {
912: $r->print("There are no students currently enrolled.\n");
913: return;
914: }
915: # Print out the available choices
916: &show_drop_list($r,$classlist,$keylist);
917: return;
918: }
919:
920: # ============================================== view classlist
921: sub print_html_classlist {
922: my $r=shift;
923: if (! exists($ENV{'form.sortby'})) {
924: $ENV{'form.sortby'} = 'username';
925: }
926: if ($ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
927: $ENV{'form.Status'} = 'Active';
928: }
929: my $status_select = &Apache::lonhtmlcommon::StatusOptions
930: ($ENV{'form.Status'},'studentform');
931: $r->print(<<END);
932: <input type="hidden" name="action" value="$ENV{'form.action'}" />
933: <input type="hidden" name="state" value="" />
934: <p>
935: <font size="+1">Current Class List</font>
936:
937: END
938: if ($ENV{'form.action'} ne 'modifystudent') {
939: $r->print(<<END);
940: <font size="+1">
941: <a href="javascript:document.studentform.state.value='csv';document.studentform.submit();">CSV format</a>
942:
943: <a href="javascript:document.studentform.state.value='excel';document.studentform.submit();">Excel format</a>
944: </font>
945:
946: Student Status:
947: END
948: }
949: $r->print($status_select."</p>\n");
950: my $cid=$ENV{'request.course.id'};
951: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
952: if (! defined($classlist)) {
953: $r->print("There are no students currently enrolled.\n");
954: } else {
955: # Print out the available choices
956: if ($ENV{'form.action'} eq 'modifystudent') {
957: &show_class_list($r,'view','modify','modifystudent',
958: $ENV{'form.Status'},$classlist,$keylist);
959: } else {
960: &show_class_list($r,'view','aboutme','classlist',
961: $ENV{'form.Status'},$classlist,$keylist);
962: }
963: }
964: }
965:
966: # ============================================== view classlist
967: sub print_formatted_classlist {
968: my $r=shift;
969: my $mode = shift;
970: my $cid=$ENV{'request.course.id'};
971: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
972: if (! defined($classlist)) {
973: $r->print("There are no students currently enrolled.\n");
974: } else {
975: &show_class_list($r,$mode,'nolink','csv',
976: $ENV{'form.Status'},$classlist,$keylist);
977: }
978: }
979:
980: # =================================================== Show student list to drop
981: sub show_class_list {
982: my ($r,$mode,$linkto,$action,$statusmode,$classlist,$keylist)=@_;
983: my $cid=$ENV{'request.course.id'};
984: #
985: # Variables for excel output
986: my ($excel_workbook, $excel_sheet, $excel_filename,$row);
987: #
988: my $sortby = $ENV{'form.sortby'};
989: if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
990: $sortby = 'username';
991: }
992: # Print out header
993: if ($mode eq 'view') {
994: if ($linkto eq 'aboutme') {
995: $r->print('Select a user name to view the users personal page.');
996: } elsif ($linkto eq 'modify') {
997: $r->print('Select a user name to modify the students information');
998: }
999: $r->print(<<END);
1000:
1001: <input type="hidden" name="sortby" value="$sortby" />
1002: <input type="hidden" name="sname" value="" />
1003: <input type="hidden" name="sdom" value="" />
1004: <p>
1005: <table border=2>
1006: <tr><th>
1007: <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">username</a>
1008: </th><th>
1009: <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">domain</a>
1010: </th><th>
1011: <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
1012: </th><th>
1013: <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">student name</a>
1014: </th><th>
1015: <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">section</a>
1016: </th>
1017: </tr>
1018: END
1019: } elsif ($mode eq 'csv') {
1020: if($statusmode eq 'Expired') {
1021: $r->print('"Students with expired roles"');
1022: }
1023: if ($statusmode eq 'Any') {
1024: $r->print('"'.join('","',("username","domain","ID","student name",
1025: "section","status")).'"'."\n");
1026: } else {
1027: $r->print('"'.join('","',("username","domain","ID","student name",
1028: "section")).'"'."\n");
1029: }
1030: } elsif ($mode eq 'excel') {
1031: # Create the excel spreadsheet
1032: $excel_filename = '/prtspool/'.
1033: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1034: time.'_'.rand(1000000000).'.xls';
1035: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
1036: $excel_filename);
1037: $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
1038: $excel_sheet = $excel_workbook->addworksheet('classlist');
1039: #
1040: my $description = 'Class List for '.
1041: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1042: $excel_sheet->write($row++,0,$description);
1043: #
1044: $excel_sheet->write($row++,0,["username","domain","ID",
1045: "student name","section","status"]);
1046: }
1047: #
1048: # Sort the students
1049: my %index;
1050: my $i;
1051: foreach (@$keylist) {
1052: $index{$_} = $i++;
1053: }
1054: my $index = $index{$sortby};
1055: my $second = $index{'username'};
1056: my $third = $index{'domain'};
1057: my @Sorted_Students = sort {
1058: lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index])
1059: ||
1060: lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
1061: ||
1062: lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
1063: } (keys(%$classlist));
1064: foreach my $student (@Sorted_Students) {
1065: my $username = $classlist->{$student}->[$index{'username'}];
1066: my $domain = $classlist->{$student}->[$index{'domain'}];
1067: my $section = $classlist->{$student}->[$index{'section'}];
1068: my $name = $classlist->{$student}->[$index{'fullname'}];
1069: my $id = $classlist->{$student}->[$index{'id'}];
1070: my $status = $classlist->{$student}->[$index{'status'}];
1071: next if (($statusmode ne 'Any') && ($status ne $statusmode));
1072: if ($mode eq 'view') {
1073: $r->print("<tr>\n <td>\n ");
1074: if ($linkto eq 'nothing') {
1075: $r->print($username);
1076: } elsif ($linkto eq 'aboutme') {
1077: $r->print(&Apache::loncommon::aboutmewrapper($username,
1078: $username,
1079: $domain));
1080: } elsif ($linkto eq 'modify') {
1081: $r->print('<a href="'.
1082: "javascript:document.studentform.sname.value='".
1083: $username.
1084: "';document.studentform.sdom.value='".$domain.
1085: "';document.studentform.state.value='selected".
1086: "';document.studentform.submit();".'">'.
1087: $username."</a>\n");
1088: }
1089: $r->print(<<"END");
1090: </td>
1091: <td>$domain</td>
1092: <td>$id</td>
1093: <td>$name</td>
1094: <td>$section</td>
1095: </tr>
1096: END
1097: } elsif ($mode eq 'csv') {
1098: # no need to bother with $linkto
1099: my @line = ();
1100: foreach ($username,$domain,$id,$name,$section) {
1101: push @line,&Apache::loncommon::csv_translate($_);
1102: }
1103: if ($statusmode eq 'Any') {
1104: push @line,&Apache::loncommon::csv_translate($status);
1105: }
1106: my $tmp = $";
1107: $" = '","';
1108: $r->print("\"@line\"\n");
1109: $" = $tmp;
1110: } elsif ($mode eq 'excel') {
1111: $excel_sheet->write($row++,0,[$username,$domain,$id,
1112: $name,$section,$status]);
1113: }
1114: }
1115: if ($mode eq 'view') {
1116: $r->print('</table><br>');
1117: } elsif ($mode eq 'excel') {
1118: $excel_workbook->close();
1119: $r->print('<p><a href="'.$excel_filename.'">'.
1120: 'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
1121: }
1122: }
1123:
1124:
1125: #
1126: # print out form for modification of a single students data
1127: #
1128: sub print_modify_student_form {
1129: my $r = shift();
1130: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1131: ['sdom','sname']);
1132: my $sname = $ENV{'form.sname'};
1133: my $sdom = $ENV{'form.sdom'};
1134: my $sortby = $ENV{'form.sortby'};
1135: # determine the students name information
1136: my %info=&Apache::lonnet::get('environment',
1137: ['firstname','middlename',
1138: 'lastname','generation','id'],
1139: $sdom, $sname);
1140: my ($tmp) = keys(%info);
1141: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1142: $r->print('<font color="#ff0000" size="+2">Error</font>'.
1143: '<p>'.
1144: 'Unable to retrieve environment data for '.$sname.
1145: 'in domain '.$sdom.'</p><p>'.
1146: 'Please contact your LON-CAPA administrator '.
1147: 'regarding this situation.</p></body></html>');
1148: return;
1149: }
1150: # determine the students starting and ending times and section
1151: my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
1152: if ($starttime =~ /^error/) {
1153: $r->print('<h2>Error</h2>');
1154: $r->print('<p>'.$starttime.'</p>');
1155: return;
1156: }
1157: # Deal with date forms
1158: my $date_table = &date_setting_table($starttime,$endtime);
1159: #
1160: if (! exists($ENV{'form.Status'}) ||
1161: $ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
1162: $ENV{'form.Status'} = 'crap';
1163: }
1164: # Make sure student is enrolled in course
1165: $r->print(<<END);
1166: <p>
1167: <font size="+1">
1168: Only domain coordinators can change a users password.
1169: </font>
1170: </p>
1171: <input type="hidden" name="slogin" value="$sname" />
1172: <input type="hidden" name="sdomain" value="$sdom" />
1173: <input type="hidden" name="action" value="modifystudent" />
1174: <input type="hidden" name="state" value="done" />
1175: <input type="hidden" name="sortby" value="$sortby" />
1176: <input type="hidden" name="Status" value="$ENV{'form.Status'}" />
1177:
1178: <h2>Modify Enrollment for $info{'firstname'} $info{'middlename'}
1179: $info{'lastname'} $info{'generation'}, $sname\@$sdom</h2>
1180: <p>
1181: <b>Student Name</b>
1182: <table>
1183: <tr><th>First</th><th>Middle</th><th>Last</th><th>Generation</th></tr>
1184: <tr><td>
1185: <input type="text" name="firstname" value="$info{'firstname'}" /></td><td>
1186: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
1187: <input type="text" name="lastname" value="$info{'lastname'}" /></td><td>
1188: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
1189: </table>
1190: </p><p>
1191: <b>Student ID</b>: <input type="text" name="id" value="$info{'id'}" size="12"/>
1192: </p><p>
1193: <input type="checkbox" name="forceid" >
1194: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1195: (only do if you know what you are doing)
1196: </p><p>
1197: <b>Section</b>: <input type="text" name="section" value="$section" size="4"/>
1198: </p>
1199: <p>$date_table</p>
1200: <input type="submit" value="Submit Modifications" />
1201: </body></html>
1202: END
1203: return;
1204: }
1205:
1206: #
1207: # modify a single students section
1208: #
1209: sub modify_single_student {
1210: my $r = shift;
1211: #
1212: # Remove non alphanumeric values from the section
1213: $ENV{'form.section'} =~ s/\W//g;
1214: #
1215: # Do the date defaults first
1216: my ($starttime,$endtime) = &get_dates_from_form();
1217: if ($ENV{'form.makedatesdefault'}) {
1218: $r->print(&make_dates_default($starttime,$endtime));
1219: }
1220: # Get the 'sortby' and 'Status' variables so the user goes back to their
1221: # previous screen
1222: my $sortby = $ENV{'form.sortby'};
1223: my $status = $ENV{'form.Status'};
1224: #
1225: # We always need this information
1226: my $slogin = $ENV{'form.slogin'};
1227: my $sdom = $ENV{'form.sdomain'};
1228: #
1229: # Get the old data
1230: my %old=&Apache::lonnet::get('environment',
1231: ['firstname','middlename',
1232: 'lastname','generation','id'],
1233: $sdom, $slogin);
1234: $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
1235: $ENV{'request.course.id'});
1236: my ($tmp) = keys(%old);
1237: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1238: $r->print("There was an error determining the environment values ".
1239: " for $slogin \@ $sdom.");
1240: return;
1241: }
1242: undef $tmp;
1243: #
1244: # Get the new data
1245: my $firstname = $ENV{'form.firstname'};
1246: my $middlename = $ENV{'form.middlename'};
1247: my $lastname = $ENV{'form.lastname'};
1248: my $generation = $ENV{'form.generation'};
1249: my $section = $ENV{'form.section'};
1250: my $courseid = $ENV{'request.course.id'};
1251: my $sid = $ENV{'form.id'};
1252: my $displayable_starttime = localtime($starttime);
1253: my $displayable_endtime = localtime($endtime);
1254: #
1255: # check for forceid override
1256: if ((defined($old{'id'})) && ($old{'id'} ne '') &&
1257: ($sid ne $old{'id'}) && (! exists($ENV{'form.forceid'}))) {
1258: $r->print("<font color=\"ff0000\">You changed the students id ".
1259: " but did not disable the ID change safeguard.".
1260: " The students id will not be changed.</font>");
1261: $sid = $old{'id'};
1262: }
1263: #
1264: # talk to the user about what we are going to do
1265: $r->print(<<END);
1266: <h2>Modifying data for user $slogin \@ $sdom </h2>
1267: <h3>Student Information</h3>
1268: <table rules="rows" border="1" cellpadding="3" >
1269: <tr>
1270: <th> Field </th>
1271: <th> Old Value </th>
1272: <th> New Value </th>
1273: </tr>
1274: <tr>
1275: <td> <b>First name</b> </td>
1276: <td> $old{'firstname'} </td>
1277: <td> $firstname </td>
1278: </tr><tr>
1279: <td> <b>Middle name</b> </td>
1280: <td> $old{'middlename'} </td>
1281: <td> $middlename </td>
1282: </tr><tr>
1283: <td> <b>Last name</b> </td>
1284: <td> $old{'lastname'} </td>
1285: <td> $lastname </td>
1286: </tr><tr>
1287: <td> <b>Generation</b> </td>
1288: <td> $old{'generation'} </td>
1289: <td> $generation </td>
1290: </tr><tr>
1291: <td> <b>ID</b> </td>
1292: <td> $old{'id'} </td>
1293: <td> $sid </td>
1294: </tr><tr>
1295: <td> <b>Section</b> </td>
1296: <td> $old{'section'} </td>
1297: <td> $section</td>
1298: </tr>
1299: </table>
1300: <h3>Role Information</h3>
1301: <table>
1302: <tr><td align="right"><b>Start Time:</b></td><td> $displayable_starttime </td></tr>
1303: <tr><td align="right"><b>End Time:</b></td><td> $displayable_endtime </td></tr>
1304: </table>
1305: <p>
1306: END
1307: #
1308: # Send request(s) to modify data (final undef is for 'desiredhost',
1309: # which is a moot point because the student already has an account.
1310: my $modify_section_results = &modifystudent($sdom,$slogin,
1311: $ENV{'request.course.id'},
1312: $section,undef);
1313: if ($modify_section_results !~ /^ok/) {
1314: $r->print("An error occured during the attempt to change the ".
1315: "section for this student.<br />");
1316: }
1317: my $roleresults = &Apache::lonnet::modifystudent
1318: ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
1319: $generation,$section,$endtime,$starttime,$ENV{'form.forceid'});
1320: if ($roleresults eq 'refused' ) {
1321: $r->print("Your request to change the role information for this ".
1322: "student was refused. You do not appear to have ".
1323: "sufficient authority to change student information.");
1324: } elsif ($roleresults !~ /ok/) {
1325: $r->print("An error occurred during the attempt to change the role".
1326: " information for this student. <br />".
1327: "The error reported was ".
1328: $roleresults);
1329: &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
1330: " data for ".$slogin." \@ ".$sdom." by ".
1331: $ENV{'user.name'}." \@ ".$ENV{'user.domain'}.
1332: ":".$roleresults);
1333: } else { # everything is okay!
1334: $r->print("Student information updated successfully. <br />".
1335: "The student must log out and log in again to see ".
1336: "these changes.");
1337: }
1338: $r->print(<<END);
1339: </p><p>
1340: <input type="hidden" name="action" value="modifystudent" />
1341: <input type="hidden" name="sortby" value="$sortby" />
1342: <input type="hidden" name="Status" value="$status" />
1343: <a href="javascript:document.studentform.submit();">Modify another students data</a>
1344: </body></html>
1345: END
1346: return;
1347: }
1348:
1349: sub get_enrollment_data {
1350: my ($sname,$sdomain) = @_;
1351: my $courseid = $ENV{'request.course.id'};
1352: $courseid =~ s:_:/:g;
1353: my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
1354: my ($tmp) = keys(%roles);
1355: # Bail out if we were unable to get the students roles
1356: return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
1357: # Go through the roles looking for enrollment in this course
1358: my ($end,$start) = (undef,undef);
1359: my $section = '';
1360: my $count = scalar(keys(%roles));
1361: while (my ($course,$role) = each(%roles)) {
1362: if ($course=~ /^\/$courseid\/*\s*(\w+)*_st$/ ) {
1363: #
1364: # Get active role
1365: $section=$1;
1366: (undef,$end,$start)=split(/\_/,$role);
1367: my $now=time;
1368: my $notactive=0;
1369: if ($start) {
1370: if ($now<$start) { $notactive=1; }
1371: }
1372: if ($end) {
1373: if ($now>$end) { $notactive=1; }
1374: }
1375: unless ($notactive) { return ($start,$end,$section); }
1376: }
1377: }
1378: return ($start,$end,$section);
1379: }
1380:
1381: #################################################
1382: #################################################
1383:
1384: =pod
1385:
1386: =item show_drop_list
1387:
1388: Display a list of students to drop
1389: Inputs:
1390:
1391: =over 4
1392:
1393: =item $r, Apache request
1394:
1395: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
1396:
1397: =item $keylist, array pointer returned from loncoursedata::get_classlist()
1398: which describes the order elements are stored in the %$classlist values.
1399:
1400: =item $nosort, if true, sorting links are omitted.
1401:
1402: =back
1403:
1404: =cut
1405:
1406: #################################################
1407: #################################################
1408: sub show_drop_list {
1409: my ($r,$classlist,$keylist,$nosort)=@_;
1410: my $cid=$ENV{'request.course.id'};
1411: if (! exists($ENV{'form.sortby'})) {
1412: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1413: ['sortby']);
1414: }
1415: my $sortby = $ENV{'form.sortby'};
1416: if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
1417: $sortby = 'username';
1418: }
1419: #
1420: my $action = "drop";
1421: $r->print(<<END);
1422: <input type="hidden" name="sortby" value="$sortby" />
1423: <input type="hidden" name="action" value="$action" />
1424: <input type="hidden" name="state" value="done" />
1425: <script>
1426: function checkAll(field) {
1427: for (i = 0; i < field.length; i++)
1428: field[i].checked = true ;
1429: }
1430:
1431: function uncheckAll(field) {
1432: for (i = 0; i < field.length; i++)
1433: field[i].checked = false ;
1434: }
1435: </script>
1436: <p>
1437: <input type="hidden" name="phase" value="four">
1438: END
1439:
1440: if ($nosort) {
1441: $r->print(<<END);
1442: <table border=2>
1443: <tr>
1444: <th> </th>
1445: <th>username</th>
1446: <th>domain</th>
1447: <th>ID</th>
1448: <th>student name</th>
1449: <th>section</th>
1450: </tr>
1451: END
1452:
1453: } else {
1454: $r->print(<<END);
1455: <table border=2>
1456: <tr><th> </th>
1457: <th>
1458: <a href="/adm/dropadd?action=$action&sortby=username">username</a>
1459: </th><th>
1460: <a href="/adm/dropadd?action=$action&sortby=domain">domain</a>
1461: </th><th>
1462: <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
1463: </th><th>
1464: <a href="/adm/dropadd?action=$action&sortby=fullname">student name</a>
1465: </th><th>
1466: <a href="/adm/dropadd?action=$action&sortby=section">section</a>
1467: </th>
1468: </tr>
1469: END
1470: }
1471: #
1472: # Sort the students
1473: my %index;
1474: my $i;
1475: foreach (@$keylist) {
1476: $index{$_} = $i++;
1477: }
1478: my $index = $index{$sortby};
1479: my $second = $index{'username'};
1480: my $third = $index{'domain'};
1481: my @Sorted_Students = sort {
1482: lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index])
1483: ||
1484: lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
1485: ||
1486: lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
1487: } (keys(%$classlist));
1488: foreach my $student (@Sorted_Students) {
1489: my $error;
1490: my $username = $classlist->{$student}->[$index{'username'}];
1491: my $domain = $classlist->{$student}->[$index{'domain'}];
1492: my $section = $classlist->{$student}->[$index{'section'}];
1493: my $name = $classlist->{$student}->[$index{'fullname'}];
1494: my $id = $classlist->{$student}->[$index{'id'}];
1495: my $status = $classlist->{$student}->[$index{'status'}];
1496: next if ($status ne 'Active');
1497: #
1498: $r->print(<<"END");
1499: <tr>
1500: <td><input type="checkbox" name="droplist" value="$student"></td>
1501: <td>$username</td>
1502: <td>$domain</td>
1503: <td>$id</td>
1504: <td>$name</td>
1505: <td>$section</td>
1506: </tr>
1507: END
1508: }
1509: $r->print('</table><br>');
1510: $r->print(<<"END");
1511: </p><p>
1512: <input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)">
1513: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)">
1514: <p><input type=submit value="Drop Students"></p>
1515: END
1516: return;
1517: }
1518:
1519: #
1520: # Print out the initial form to get the courselist file
1521: #
1522: sub print_first_courselist_upload_form {
1523: my $r=shift;
1524: my $upfile_select=&Apache::loncommon::upfile_select_html();
1525: my $create_classlist_help =
1526: &Apache::loncommon::help_open_topic("Course_Create_Class_List",
1527: "How do I create a class list from a spreadsheet");
1528: my $create_csv_help =
1529: &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
1530: "How do I create a CSV file from a spreadsheet");
1531: $r->print(<<ENDUPFORM);
1532: <input type=hidden name=phase value=two>
1533: <h3>Upload a courselist</h3>
1534: $upfile_select
1535: <p>
1536: <input type=submit name="fileupload" value="Upload Courselist">
1537: <input type="hidden" name="action" value="upload" />
1538: <input type="hidden" name="state" value="got_file" />
1539: <input type="checkbox" name="noFirstLine" /> Ignore First Line<br />
1540: </p>
1541: $create_classlist_help <br />
1542: $create_csv_help
1543: </body></html>
1544: ENDUPFORM
1545: return;
1546: }
1547:
1548: # ================================================= Drop/Add from uploaded file
1549: sub upfile_drop_add {
1550: my $r=shift;
1551: &Apache::loncommon::load_tmp_file($r);
1552: my @studentdata=&Apache::loncommon::upfile_record_sep();
1553: if($ENV{'form.noFirstLine'}){shift(@studentdata);}
1554: my @keyfields = split(/\,/,$ENV{'form.keyfields'});
1555: my $cid = $ENV{'request.course.id'};
1556: my %fields=();
1557: for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
1558: if ($ENV{'form.upfile_associate'} eq 'reverse') {
1559: if ($ENV{'form.f'.$i} ne 'none') {
1560: $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
1561: }
1562: } else {
1563: $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
1564: }
1565: }
1566: #
1567: my ($startdate,$enddate) = &get_dates_from_form();
1568: if ($ENV{'form.makedatesdefault'}) {
1569: $r->print(&make_dates_default($startdate,$enddate));
1570: }
1571: # Determine domain and desired host (home server)
1572: my $domain=$ENV{'form.lcdomain'};
1573: my $desiredhost = $ENV{'form.lcserver'};
1574: if (lc($desiredhost) eq 'default') {
1575: $desiredhost = undef;
1576: } else {
1577: my %home_servers = &Apache::loncommon::get_library_servers($domain);
1578: if (! exists($home_servers{$desiredhost})) {
1579: $r->print('<font color="#ff0000">Error:</font>'.
1580: 'Invalid home server specified');
1581: return;
1582: }
1583: }
1584: # Determine authentication mechanism
1585: my $amode = '';
1586: my $genpwd = '';
1587: if ($ENV{'form.login'} eq 'krb') {
1588: $amode='krb';
1589: $amode.=$ENV{'form.krbver'};
1590: $genpwd=$ENV{'form.krbarg'};
1591: } elsif ($ENV{'form.login'} eq 'int') {
1592: $amode='internal';
1593: if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
1594: $genpwd=$ENV{'form.intarg'};
1595: }
1596: } elsif ($ENV{'form.login'} eq 'loc') {
1597: $amode='localauth';
1598: if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
1599: $genpwd=$ENV{'form.locarg'};
1600: }
1601: }
1602: if ($amode =~ /^krb/) {
1603: if (! defined($genpwd) || $genpwd eq '') {
1604: $r->print('<font color="red" size="+1">'.
1605: 'Unable to enroll students:'.'</font> '.
1606: 'No Kerberos domain was specified.</p>');
1607: $amode = ''; # This causes the loop below to be skipped
1608: }
1609: }
1610: unless (($domain=~/\W/) || ($amode eq '')) {
1611: #######################################
1612: ## Enroll Students ##
1613: #######################################
1614: $r->print('<h3>Enrolling Students</h3>'."\n".'<p>');
1615: my $count=0;
1616: my $flushc=0;
1617: my %student=();
1618: # Get new classlist
1619: foreach (@studentdata) {
1620: my %entries=&Apache::loncommon::record_sep($_);
1621: # Determine student name
1622: unless (($entries{$fields{'username'}} eq '') ||
1623: (!defined($entries{$fields{'username'}}))) {
1624: my ($fname, $mname, $lname,$gen) = ('','','','');
1625: if (defined($fields{'names'})) {
1626: ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
1627: /([^\,]+)\,\s*(\w+)\s*(.*)$/);
1628: } else {
1629: if (defined($fields{'fname'})) {
1630: $fname=$entries{$fields{'fname'}};
1631: }
1632: if (defined($fields{'mname'})) {
1633: $mname=$entries{$fields{'mname'}};
1634: }
1635: if (defined($fields{'lname'})) {
1636: $lname=$entries{$fields{'lname'}};
1637: }
1638: if (defined($fields{'gen'})) {
1639: $gen=$entries{$fields{'gen'}};
1640: }
1641: }
1642: if ($entries{$fields{'username'}}=~/\W/) {
1643: $r->print('<br /><b>Unacceptable username: '.
1644: $entries{$fields{'username'}}.' for user '.
1645: $fname.' '.$mname.' '.$lname.' '.$gen.'</b>');
1646: } else {
1647: # determine section number
1648: my $sec='';
1649: my $username=$entries{$fields{'username'}};
1650: if (defined($fields{'sec'})) {
1651: if (defined($entries{$fields{'sec'}})) {
1652: $sec=$entries{$fields{'sec'}};
1653: }
1654: }
1655: # remove non alphanumeric values from section
1656: $sec =~ s/\W//g;
1657: # determine student id number
1658: my $id='';
1659: if (defined($fields{'id'})) {
1660: if (defined($entries{$fields{'id'}})) {
1661: $id=$entries{$fields{'id'}};
1662: }
1663: $id=~tr/A-Z/a-z/;
1664: }
1665: # determine email address
1666: my $email='';
1667: if (defined($fields{'email'})) {
1668: if (defined($entries{$fields{'email'}})) {
1669: $email=$entries{$fields{'email'}};
1670: unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
1671: }
1672: }
1673: # determine student password
1674: my $password='';
1675: if ($genpwd) {
1676: $password=$genpwd;
1677: } else {
1678: if (defined($fields{'ipwd'})) {
1679: if ($entries{$fields{'ipwd'}}) {
1680: $password=$entries{$fields{'ipwd'}};
1681: }
1682: }
1683: }
1684: # Clean up whitespace
1685: foreach (\$domain,\$username,\$id,\$fname,\$mname,
1686: \$lname,\$gen,\$sec) {
1687: $$_ =~ s/(\s+$|^\s+)//g;
1688: }
1689: if ($password || $ENV{'form.login'} eq 'loc') {
1690: &modifystudent($domain,$username,$cid,$sec,
1691: $desiredhost);
1692: my $reply=&Apache::lonnet::modifystudent
1693: ($domain,$username,$id,$amode,$password,
1694: $fname,$mname,$lname,$gen,$sec,$enddate,
1695: $startdate,$ENV{'form.forceid'},$desiredhost,
1696: $email);
1697: if ($reply ne 'ok') {
1698: $reply =~ s/^error://;
1699: $r->print('<br /><b>'.$username.'</b>:'.
1700: ' Unable to enroll: '.$reply);
1701: } else {
1702: $count++; $flushc++;
1703: $student{$username}=1;
1704: $r->print('. ');
1705: if ($flushc>15) {
1706: $r->rflush;
1707: $flushc=0;
1708: }
1709: }
1710: } else {
1711: $r->print('<br /><b>'.$username.'</b>:'.
1712: ' Unable to enroll: No password specified.');
1713: }
1714: }
1715: }
1716: } # end of foreach (@studentdata)
1717: $r->print('</p><p>Processed Students: '.$count.'</p>');
1718: $r->print("<p>If active, the new role will be available when the ".
1719: "students next log in to LON-CAPA.</p>");
1720: #####################################
1721: # Drop students #
1722: #####################################
1723: if ($ENV{'form.fullup'} eq 'yes') {
1724: $r->print('<h3>Dropping Students</h3>');
1725: # Get current classlist
1726: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
1727: if (! defined($classlist)) {
1728: $r->print("There are no students currently enrolled.\n");
1729: } else {
1730: # Remove the students we just added from the list of students.
1731: foreach (@studentdata) {
1732: my %entries=&Apache::loncommon::record_sep($_);
1733: unless (($entries{$fields{'username'}} eq '') ||
1734: (!defined($entries{$fields{'username'}}))) {
1735: delete($classlist->{$entries{$fields{'username'}}.
1736: ':'.$domain});
1737: }
1738: }
1739: # Print out list of dropped students.
1740: &show_drop_list($r,$classlist,$keylist,'nosort');
1741: }
1742: }
1743: } # end of unless
1744: }
1745:
1746: # ================================================================== Phase four
1747: sub drop_student_list {
1748: my $r=shift;
1749: my $count=0;
1750: my @droplist;
1751: if (ref($ENV{'form.droplist'})) {
1752: @droplist = @{$ENV{'form.droplist'}};
1753: } else {
1754: @droplist = ($ENV{'form.droplist'});
1755: }
1756: foreach (@droplist) {
1757: my ($uname,$udom)=split(/\:/,$_);
1758: # drop student
1759: my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
1760: if ($result eq 'ok' || $result eq 'ok:') {
1761: $r->print('Dropped '.$uname.' @ '.$udom.'<br>');
1762: $count++;
1763: } else {
1764: $r->print('Error dropping '.$uname.' @ '.$udom.': '.$result.
1765: '<br />');
1766: }
1767: }
1768: $r->print('<p><b>Dropped '.$count.' student(s).</b>');
1769: $r->print('<p>Re-enrollment will re-activate data.') if ($count);
1770: }
1771:
1772: ###################################################################
1773: ###################################################################
1774:
1775: =pod
1776:
1777: =item &handler
1778:
1779: The typical handler you see in all these modules. Takes $r, the
1780: http request, as an argument.
1781:
1782: The response to the request is governed by two form variables
1783:
1784: form.action form.state response
1785: ---------------------------------------------------
1786: undefined undefined print main menu
1787: upload undefined print courselist upload menu
1788: upload got_file deal with uploaded file,
1789: print the upload managing menu
1790: upload enrolling enroll students based on upload
1791: drop undefined print the classlist ready to drop
1792: drop done drop the selected students
1793: enrollstudent undefined print student username domain form
1794: enrollstudent gotusername print single student enroll menu
1795: enrollstudent enrolling enroll student
1796: classlist undefined print html classlist
1797: classlist csv print csv classlist
1798: modifystudent undefined print classlist to select student to modify
1799: modifystudent selected print modify student menu
1800: modifystudent done make modifications to student record
1801:
1802: =cut
1803:
1804: ###################################################################
1805: ###################################################################
1806: sub handler {
1807: my $r=shift;
1808: if ($r->header_only) {
1809: &Apache::loncommon::content_type($r,'text/html');
1810: $r->send_http_header;
1811: return OK;
1812: }
1813: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1814: ['action','state']);
1815: # Needs to be in a course
1816: if (! (($ENV{'request.course.fn'}) &&
1817: (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'})))) {
1818: # Not in a course, or not allowed to modify parms
1819: $ENV{'user.error.msg'}=
1820: "/adm/dropadd:cst:0:0:Cannot drop or add students";
1821: return HTTP_NOT_ACCEPTABLE;
1822: }
1823: #
1824: # Only output the header information if they did not request csv format
1825: #
1826: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
1827: $r->content_type('text/csv');
1828: } else {
1829: # Start page
1830: &Apache::loncommon::content_type($r,'text/html');
1831: $r->send_http_header;
1832: $r->print(&header());
1833: }
1834: #
1835: # Main switch on form.action and form.state, as appropriate
1836: if (! exists($ENV{'form.action'})) {
1837: &print_main_menu($r);
1838: } elsif ($ENV{'form.action'} eq 'upload') {
1839: if (! exists($ENV{'form.state'})) {
1840: &print_first_courselist_upload_form($r);
1841: } elsif ($ENV{'form.state'} eq 'got_file') {
1842: &print_upload_manager_form($r);
1843: } elsif ($ENV{'form.state'} eq 'enrolling') {
1844: if ($ENV{'form.datatoken'}) {
1845: &upfile_drop_add($r);
1846: } else {
1847: # Hmmm, this is an error
1848: }
1849: } else {
1850: &print_first_courselist_upload_form($r);
1851: }
1852: } elsif ($ENV{'form.action'} eq 'drop') {
1853: if (! exists($ENV{'form.state'})) {
1854: &print_drop_menu($r);
1855: } elsif ($ENV{'form.state'} eq 'done') {
1856: &drop_student_list($r);
1857: } else {
1858: &print_drop_menu($r);
1859: }
1860: } elsif ($ENV{'form.action'} eq 'enrollstudent') {
1861: if (! exists($ENV{'form.state'})) {
1862: &get_student_username_domain_form($r);
1863: } elsif ($ENV{'form.state'} eq 'gotusername') {
1864: &print_enroll_single_student_form($r);
1865: } elsif ($ENV{'form.state'} eq 'enrolling') {
1866: &enroll_single_student($r);
1867: } else {
1868: &get_student_username_domain_form($r);
1869: }
1870: } elsif ($ENV{'form.action'} eq 'classlist') {
1871: if (! exists($ENV{'form.state'})) {
1872: &print_html_classlist($r);
1873: } elsif ($ENV{'form.state'} eq 'csv') {
1874: &print_formatted_classlist($r,'csv');
1875: } elsif ($ENV{'form.state'} eq 'excel') {
1876: &print_formatted_classlist($r,'excel');
1877: } else {
1878: &print_html_classlist($r);
1879: }
1880: } elsif ($ENV{'form.action'} eq 'modifystudent') {
1881: if (! exists($ENV{'form.state'})) {
1882: &print_html_classlist($r);
1883: } elsif ($ENV{'form.state'} eq 'selected') {
1884: &print_modify_student_form($r);
1885: } elsif ($ENV{'form.state'} eq 'done') {
1886: &modify_single_student($r);
1887: } else {
1888: &print_html_classlist($r);
1889: }
1890: } else {
1891: # We should not end up here, but I guess it is possible
1892: &Apache::lonnet::logthis("Undetermined state in londropadd.pm. ".
1893: "form.action = ".$ENV{'form.action'}.
1894: "Someone should fix this.");
1895: &print_main_menu($r);
1896: }
1897: #
1898: # Finish up
1899: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
1900: $r->print("\n");
1901: } else {
1902: $r->print('</form></body></html>');
1903: }
1904: return OK;
1905: }
1906:
1907: ###################################################################
1908: ###################################################################
1909:
1910: 1;
1911: __END__
1912:
1913:
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