1: # The LearningOnline Network with CAPA
2: # Handler to drop and add students in courses
3: #
4: # $Id: londropadd.pm,v 1.84 2003/08/26 04:56:29 albertel 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:
46: ###############################################################
47: ###############################################################
48: sub header {
49: my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager');
50: return(<<ENDHEAD);
51: <html>
52: <head>
53: <title>LON-CAPA Enrollment Manager</title>
54: </head>
55: $bodytag
56: <form method="post" enctype="multipart/form-data"
57: action="/adm/dropadd" name="studentform">
58: ENDHEAD
59: }
60:
61: ###############################################################
62: ###############################################################
63: # Drop student from all sections of a course, except optional $csec
64: sub modifystudent {
65: my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
66: # if $csec is undefined, drop the student from all the courses matching
67: # this one. If $csec is defined, drop them from all other sections of
68: # this course and add them to section $csec
69: $courseid=~s/\_/\//g;
70: $courseid=~s/^(\w)/\/$1/;
71: my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
72: my ($tmp) = keys(%roles);
73: # Bail out if we were unable to get the students roles
74: return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
75: # Go through the roles looking for enrollment in this course
76: my $result = '';
77: foreach my $course (keys(%roles)) {
78: if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
79: # We are in this course
80: my $section=$1;
81: $section='' if ($course eq $courseid.'_st');
82: if ($section eq $csec) {
83: $result .= 'ok:';
84: } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
85: my (undef,$end,$start)=split(/\_/,$roles{$course});
86: my $now=time;
87: # if this is an active role
88: if (!($start && ($now<$start)) || !($end && ($now>$end))) {
89: my $reply=&Apache::lonnet::modifystudent
90: # dom name id mode pass f m l g
91: ($udom,$unam,'', '', '',undef,undef,undef,undef,
92: $section,time,undef,undef,$desiredhost);
93: $result .= $reply.':';
94: }
95: }
96: }
97: }
98: if ($result eq '') {
99: $result = 'Unable to find section for this student';
100: } else {
101: $result =~ s/(ok:)+/ok/g;
102: }
103: return $result;
104: }
105:
106: ###############################################################
107: ###############################################################
108: # build a domain and server selection form
109: sub domain_form {
110: my ($defdom) = @_;
111: # Set up domain and server selection forms
112: #
113: # Get the domains
114: my @domains = &Apache::loncommon::get_domains();
115: # build up the menu information to be passed to
116: # &Apache::loncommon::linked_select_forms
117: my %select_menus;
118: foreach my $dom (@domains) {
119: # set up the text for this domain
120: $select_menus{$dom}->{'text'}= $dom;
121: # we want a choice of 'default' as the default in the second menu
122: $select_menus{$dom}->{'default'}= 'default';
123: $select_menus{$dom}->{'select2'}->{'default'} = 'default';
124: # Now build up the other items in the second menu
125: my %servers = &Apache::loncommon::get_library_servers($dom);
126: foreach my $server (keys(%servers)) {
127: $select_menus{$dom}->{'select2'}->{$server}
128: = "$server $servers{$server}";
129: }
130: }
131: my $result = &Apache::loncommon::linked_select_forms
132: ('studentform',' with home server ',$defdom,
133: 'lcdomain','lcserver',\%select_menus);
134: return $result;
135: }
136:
137: ###############################################################
138: ###############################################################
139: # Menu Phase One
140: sub print_main_menu {
141: my $r=shift;
142: $r->print(<<END);
143: <p>
144: <font size="+1">
145: <a href="/adm/dropadd?action=upload">Upload a course list</a>
146: </font>
147: </p><p>
148: <font size="+1">
149: <a href="/adm/dropadd?action=enrollstudent">Enroll a single student</a>
150: </font>
151: </p><p>
152: <font size="+1">
153: <a href="/adm/dropadd?action=modifystudent">Modify student data</a>
154: </font>
155: </p><p>
156: <font size="+1">
157: <a href="/adm/dropadd?action=classlist">View Class List</a>
158: </font>
159: </p><p>
160: <font size="+1">
161: <a href="/adm/dropadd?action=drop">Drop Students</a>
162: </font>
163: </p>
164: END
165: }
166:
167: ###############################################################
168: ###############################################################
169: sub print_upload_manager_header {
170: my ($r,$datatoken,$distotal,$krbdefdom)=@_;
171: my $javascript;
172: if (! exists($ENV{'form.upfile_associate'})) {
173: $ENV{'form.upfile_associate'} = 'forward';
174: }
175: if ($ENV{'form.associate'} eq 'Reverse Association') {
176: if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
177: $ENV{'form.upfile_associate'} = 'reverse';
178: } else {
179: $ENV{'form.upfile_associate'} = 'forward';
180: }
181: }
182: if ($ENV{'form.upfile_associate'} eq 'reverse') {
183: $javascript=&upload_manager_javascript_reverse_associate();
184: } else {
185: $javascript=&upload_manager_javascript_forward_associate();
186: }
187: my $javascript_validations=&javascript_validations($krbdefdom);
188: my $checked=(($ENV{'form.noFirstLine'})?' checked="1"':'');
189: $r->print(<<ENDPICK);
190: <h3>Uploading Class List</h3>
191: <hr>
192: <h3>Identify fields</h3>
193: Total number of records found in file: $distotal <hr />
194: Enter as many fields as you can. The system will inform you and bring you back
195: to this page if the data selected is insufficient to run your class.<hr />
196: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
197: <input type="hidden" name="action" value="upload" />
198: <input type="hidden" name="state" value="got_file" />
199: <input type="hidden" name="associate" value="" />
200: <input type="hidden" name="datatoken" value="$datatoken" />
201: <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
202: <input type="checkbox" name="noFirstLine" $checked />Ignore First Line
203: <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
204: <input type="hidden" name="upfile_associate"
205: value="$ENV{'form.upfile_associate'}" />
206: <hr />
207: <script type="text/javascript" language="Javascript">
208: $javascript
209: $javascript_validations
210: </script>
211: ENDPICK
212: }
213:
214: ###############################################################
215: ###############################################################
216: sub javascript_validations {
217: my ($krbdefdom)=@_;
218: my %param = ( formname => 'studentform',
219: kerb_def_dom => $krbdefdom );
220: my $authheader = &Apache::loncommon::authform_header(%param);
221: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
222: return (<<ENDPICK);
223: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
224: var foundatype=0;
225: var message='';
226: if (founduname==0) {
227: alert('You need to specify the username field');
228: return;
229: }
230: // alert('current.radiovalue = '+current.radiovalue);
231: if (current.radiovalue == null || current.radiovalue == 'nochange') {
232: // They did not check any of the login radiobuttons.
233: alert('You must choose an authentication type');
234: return;
235: }
236: foundatype=1;
237: if (current.argfield == null || current.argfield == '') {
238: var alertmsg = '';
239: switch (current.value) {
240: case 'krb':
241: alertmsg = 'You need to specify the Kerberos domain';
242: break;
243: case 'loc':
244: case 'fsys':
245: alertmsg = 'You need to specify the initial password';
246: break;
247: case 'fsys':
248: alertmsg = '';
249: break;
250: default:
251: alertmsg = '';
252: }
253: if (alertmsg != '') {
254: alert(alertmsg);
255: return;
256: }
257: }
258:
259: if (foundname==0) { message='name fields'; }
260: if (foundid==0) { if (message!='') { message+=', '; } message+='student number field'; }
261: if (foundsec==0) { if (message!='') { message+=', '; } message+='section or group field'; }
262: if (foundemail==0) { if (message!='') { message+=', '; } message+='email address field'; }
263: if (message!='') {
264: message='Not specified (optional): '+message+'. Continue enrollment?';
265: if (confirm(message)) {
266: vf.state.value='enrolling';
267: vf.submit();
268: }
269: } else {
270: vf.state.value='enrolling';
271: vf.submit();
272: }
273: }
274:
275: $authheader
276: ENDPICK
277:
278: }
279:
280: sub javascript_validations_without_auth {
281: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
282: return (<<ENDPICK);
283: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
284: var foundatype=0;
285: var message='';
286: if (founduname==0) {
287: alert('You need to specify the username field');
288: return;
289: }
290: if (foundname==0) { message='name fields'; }
291: if (foundid==0) { if (message!='') { message+=', '; } message+='student number field'; }
292: if (foundsec==0) { if (message!='') { message+=', '; } message+='section or group field'; }
293: if (foundemail==0) { if (message!='') { message+=', '; } message+='email address field'; }
294: if (message!='') {
295: message='Not specified (optional): '+message+'. Continue enrollment?';
296: if (confirm(message)) {
297: vf.state.value='enrolling';
298: vf.submit();
299: }
300: } else {
301: vf.state.value='enrolling';
302: vf.submit();
303: }
304: }
305:
306: ENDPICK
307:
308: }
309:
310: ###############################################################
311: ###############################################################
312: sub upload_manager_javascript_forward_associate {
313: return(<<ENDPICK);
314: function verify(vf) {
315: var founduname=0;
316: var foundpwd=0;
317: var foundname=0;
318: var foundid=0;
319: var foundsec=0;
320: var foundemail=0;
321: var tw;
322: for (i=0;i<=vf.nfields.value;i++) {
323: tw=eval('vf.f'+i+'.selectedIndex');
324: if (tw==1) { founduname=1; }
325: if ((tw>=2) && (tw<=6)) { foundname=1; }
326: if (tw==7) { foundid=1; }
327: if (tw==8) { foundsec=1; }
328: if (tw==9) { foundpwd=1; }
329: if (tw==10) { foundemail=1; }
330: }
331: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
332: }
333:
334: //
335: // vf = this.form
336: // tf = column number
337: //
338: // values of nw
339: //
340: // 0 = none
341: // 1 = username
342: // 2 = names (lastname, firstnames)
343: // 3 = fname (firstname)
344: // 4 = mname (middlename)
345: // 5 = lname (lastname)
346: // 6 = gen (generation)
347: // 7 = id
348: // 8 = section
349: // 9 = ipwd (password)
350: // 10 = email address
351:
352: function flip(vf,tf) {
353: var nw=eval('vf.f'+tf+'.selectedIndex');
354: var i;
355: // make sure no other columns are labeled the same as this one
356: for (i=0;i<=vf.nfields.value;i++) {
357: if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
358: eval('vf.f'+i+'.selectedIndex=0;')
359: }
360: }
361: // If we set this to 'lastname, firstnames', clear out all the ones
362: // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
363: if (nw==2) {
364: for (i=0;i<=vf.nfields.value;i++) {
365: if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
366: (eval('vf.f'+i+'.selectedIndex')<=6)) {
367: eval('vf.f'+i+'.selectedIndex=0;')
368: }
369: }
370: }
371: // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
372: // clear out any that are set to 'lastname, firstnames' (2)
373: if ((nw>=3) && (nw<=6)) {
374: for (i=0;i<=vf.nfields.value;i++) {
375: if (eval('vf.f'+i+'.selectedIndex')==2) {
376: eval('vf.f'+i+'.selectedIndex=0;')
377: }
378: }
379: }
380: // If we set the password, make the password form below correspond to
381: // the new value.
382: if (nw==9) {
383: changed_radio('int',document.studentform);
384: set_auth_radio_buttons('int',document.studentform);
385: vf.intarg.value='';
386: vf.krbarg.value='';
387: vf.locarg.value='';
388: }
389: }
390:
391: function clearpwd(vf) {
392: var i;
393: for (i=0;i<=vf.nfields.value;i++) {
394: if (eval('vf.f'+i+'.selectedIndex')==9) {
395: eval('vf.f'+i+'.selectedIndex=0;')
396: }
397: }
398: }
399:
400: ENDPICK
401: }
402:
403: ###############################################################
404: ###############################################################
405: sub upload_manager_javascript_reverse_associate {
406: return(<<ENDPICK);
407: function verify(vf) {
408: var founduname=0;
409: var foundpwd=0;
410: var foundname=0;
411: var foundid=0;
412: var foundsec=0;
413: var tw;
414: for (i=0;i<=vf.nfields.value;i++) {
415: tw=eval('vf.f'+i+'.selectedIndex');
416: if (i==0 && tw!=0) { founduname=1; }
417: if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
418: if (i==6 && tw!=0) { foundid=1; }
419: if (i==7 && tw!=0) { foundsec=1; }
420: if (i==8 && tw!=0) { foundpwd=1; }
421: }
422: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
423: }
424:
425: function flip(vf,tf) {
426: var nw=eval('vf.f'+tf+'.selectedIndex');
427: var i;
428: // picked the all one one name field, reset the other name ones to blank
429: if (tf==1 && nw!=0) {
430: for (i=2;i<=5;i++) {
431: eval('vf.f'+i+'.selectedIndex=0;')
432: }
433: }
434: //picked one of the piecewise name fields, reset the all in
435: //one field to blank
436: if ((tf>=2) && (tf<=5) && (nw!=0)) {
437: eval('vf.f1.selectedIndex=0;')
438: }
439: // intial password specified, pick internal authentication
440: if (tf==8 && nw!=0) {
441: changed_radio('int',document.studentform);
442: set_auth_radio_buttons('int',document.studentform);
443: vf.krbarg.value='';
444: vf.intarg.value='';
445: vf.locarg.value='';
446: }
447: }
448:
449: function clearpwd(vf) {
450: var i;
451: if (eval('vf.f8.selectedIndex')!=0) {
452: eval('vf.f8.selectedIndex=0;')
453: }
454: }
455: ENDPICK
456: }
457:
458: ###############################################################
459: ###############################################################
460: sub print_upload_manager_footer {
461: my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
462:
463: my ($krbdef,$krbdefdom) =
464: &Apache::loncommon::get_kerberos_defaults($defdom);
465: my %param = ( formname => 'document.studentform',
466: kerb_def_dom => $krbdefdom,
467: kerb_def_auth => $krbdef
468: );
469: my $krbform = &Apache::loncommon::authform_kerberos(%param);
470: my $intform = &Apache::loncommon::authform_internal(%param);
471: my $locform = &Apache::loncommon::authform_local(%param);
472: my $domform = &domain_form($defdom);
473: my $date_table = &date_setting_table();
474: $r->print(<<ENDPICK);
475: </table>
476: <input type=hidden name=nfields value=$i>
477: <input type=hidden name=keyfields value="$keyfields">
478: <h3>Login Type</h3>
479: <p>Note: this will not take effect if the user already exists</p>
480: <p>
481: $krbform
482: </p>
483: <p>
484: $intform
485: </p>
486: <p>
487: $locform
488: </p>
489: <h3>LON-CAPA Domain for Students</h3>
490: LON-CAPA domain: $domform <p>
491: <h3>Starting and Ending Dates</h3>
492: <p>
493: $date_table
494: </p>
495: <h3>Full Update</h3>
496: <input type=checkbox name=fullup value=yes> Full update
497: (also print list of users not enrolled anymore)<p>
498: <h3>ID/Student Number</h3>
499: <input type=checkbox name=forceid value=yes>
500: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
501: (only do if you know what you are doing)<p>
502: <input type="button" onClick="javascript:verify(this.form)" value="Update Courselist" /><br />
503: Note: for large courses, this operation may be time consuming.
504: ENDPICK
505: }
506:
507: # ======================================================= Menu Phase Two Upload
508: sub print_upload_manager_form {
509: my $r=shift;
510: my $firstLine;
511: my $datatoken;
512: if (!$ENV{'form.datatoken'}) {
513: $datatoken=&Apache::loncommon::upfile_store($r);
514: } else {
515: $datatoken=$ENV{'form.datatoken'};
516: &Apache::loncommon::load_tmp_file($r);
517: }
518: my @records=&Apache::loncommon::upfile_record_sep();
519: if($ENV{'form.noFirstLine'}){$firstLine=shift(@records);}
520: my $total=$#records;
521: my $distotal=$total+1;
522: my $today=time;
523: my $halfyear=$today+15552000;
524: my $defdom=$ENV{'request.role.domain'};
525: my ($krbdef,$krbdefdom) =
526: &Apache::loncommon::get_kerberos_defaults($defdom);
527: &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
528: my $i;
529: my $keyfields;
530: if ($total>=0) {
531: my @d=(['username','Username'],
532: ['names','Last Name, First Names'],
533: ['fname','First Name'],
534: ['mname','Middle Names/Initials'],
535: ['lname','Last Name'],
536: ['gen','Generation'],
537: ['id','ID/Student Number'],
538: ['sec','Group/Section'],
539: ['ipwd','Initial Password'],
540: ['email','EMail Address']);
541: if ($ENV{'form.upfile_associate'} eq 'reverse') {
542: &Apache::loncommon::csv_print_samples($r,\@records);
543: $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
544: foreach (@d) { $keyfields.=$_->[0].','; }
545: chop($keyfields);
546: } else {
547: unshift(@d,['none','']);
548: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
549: my %sone=&Apache::loncommon::record_sep($records[0]);
550: $keyfields=join(',',sort(keys(%sone)));
551: }
552: }
553: &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
554: }
555:
556: # ======================================================= Enroll single student
557: sub enroll_single_student {
558: my $r=shift;
559: # Remove non alphanumeric values from section
560: $ENV{'form.csec'}=~s/\W//g;
561: #
562: # We do the dates first because the action of making them the defaul
563: # in the course is entirely seperate from the action of enrolling the
564: # student. Also, a failure in setting the dates as default is not fatal
565: # to the process of enrolling / modifying a student.
566: my ($startdate,$enddate) = &get_dates_from_form();
567: if ($ENV{'form.makedatesdefault'}) {
568: $r->print(&make_dates_default($startdate,$enddate));
569: }
570:
571: $r->print('<h3>Enrolling Student</h3>');
572: $r->print('<p>Enrolling '.$ENV{'form.cuname'}." \@ ".
573: $ENV{'form.lcdomain'}.'</p>');
574: if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
575: ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
576: # Deal with home server selection
577: my $domain=$ENV{'form.lcdomain'};
578: my $desiredhost = $ENV{'form.lcserver'};
579: if (lc($desiredhost) eq 'default') {
580: $desiredhost = undef;
581: } else {
582: my %home_servers =&Apache::loncommon::get_library_servers($domain);
583: if (! exists($home_servers{$desiredhost})) {
584: $r->print('<font color="#ff0000">Error:</font>'.
585: 'Invalid home server specified');
586: return;
587: }
588: }
589: $r->print(" with server $desiredhost :") if (defined($desiredhost));
590: # End of home server selection logic
591: my $amode='';
592: my $genpwd='';
593: if ($ENV{'form.login'} eq 'krb') {
594: $amode='krb';
595: $amode.=$ENV{'form.krbver'};
596: $genpwd=$ENV{'form.krbarg'};
597: } elsif ($ENV{'form.login'} eq 'int') {
598: $amode='internal';
599: $genpwd=$ENV{'form.intarg'};
600: } elsif ($ENV{'form.login'} eq 'loc') {
601: $amode='localauth';
602: $genpwd=$ENV{'form.locarg'};
603: if (!$genpwd) { $genpwd=" "; }
604: }
605: my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'},
606: $ENV{'form.lcdomain'});
607: if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
608: # Clean out any old roles the student has in this class.
609: &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
610: $ENV{'request.course.id'},$ENV{'form.csec'},
611: $desiredhost);
612: my $login_result = &Apache::lonnet::modifystudent
613: ($ENV{'form.lcdomain'},$ENV{'form.cuname'},
614: $ENV{'form.cstid'},$amode,$genpwd,
615: $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
616: $ENV{'form.clast'},$ENV{'form.cgen'},
617: $ENV{'form.csec'},$enddate,
618: $startdate,$ENV{'form.forceid'},
619: $desiredhost);
620: if ($login_result =~ /^ok/) {
621: $r->print($login_result);
622: $r->print("<p> If active, the new role will be available ".
623: "when the student next logs in to LON-CAPA.</p>");
624: } else {
625: $r->print("unable to enroll: ".$login_result);
626: }
627: } else {
628: $r->print('<p><font color="#ff0000">ERROR</font> ');
629: if ($amode =~ /^krb/) {
630: $r->print('Missing Kerberos domain information. ');
631: } else {
632: $r->print('Invalid login mode or password. ');
633: }
634: $r->print('<b>Unable to enroll '.$ENV{'form.cuname'}.'.</b></p>');
635: }
636: } else {
637: $r->print('Invalid username or domain');
638: }
639: }
640:
641: sub setup_date_selectors {
642: my ($starttime,$endtime) = @_;
643: if (! defined($starttime)) {
644: $starttime = time;
645: if (exists($ENV{'course.'.$ENV{'request.course.id'}.
646: '.default_enrollment_start_date'})) {
647: $starttime = $ENV{'course.'.$ENV{'request.course.id'}.
648: '.default_enrollment_start_date'};
649: }
650: }
651: if (! defined($endtime)) {
652: $endtime = time+(6*30*24*60*60); # 6 months from now, approx
653: if (exists($ENV{'course.'.$ENV{'request.course.id'}.
654: '.default_enrollment_end_date'})) {
655: $endtime = $ENV{'course.'.$ENV{'request.course.id'}.
656: '.default_enrollment_end_date'};
657: }
658: }
659: my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
660: 'startdate',
661: $starttime);
662: my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
663: 'enddate',
664: $endtime);
665: return ($startdateform,$enddateform);
666: }
667:
668: sub get_dates_from_form {
669: my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
670: my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate');
671: if ($ENV{'form.no_end_date'}) {
672: $enddate = 0;
673: }
674: return ($startdate,$enddate);
675: }
676:
677: sub date_setting_table {
678: my ($starttime,$endtime) = @_;
679: my ($startform,$endform)=&setup_date_selectors($starttime,$endtime);
680: my $dateDefault = '<nobr>'.
681: '<input type="checkbox" name="makedatesdefault" />'.
682: ' make these dates the default for future enrollment';
683: my $perpetual = '<nobr><input type="checkbox" name="no_end_date"';
684: if (defined($endtime) && $endtime == 0) {
685: $perpetual .= ' checked';
686: }
687: $perpetual.= ' />'.' no ending date</nobr>';
688: my $result = '';
689: $result .= "<table>\n";
690: $result .= '<tr><td align="right">Starting Date</td>'.
691: '<td>'.$startform.'</td>'.
692: '<td>'.$dateDefault.'</td>'."</tr>\n";
693: $result .= '<tr><td align="right">Ending Date</td>'.
694: '<td>'.$endform.'</td>'.
695: '<td>'.$perpetual.'</td>'."</tr>\n";
696: $result .= "</table>\n";
697: return $result;
698: }
699:
700: sub make_dates_default {
701: my ($startdate,$enddate) = @_;
702: my $result = '';
703: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
704: my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
705: my $put_result = &Apache::lonnet::put('environment',
706: {'default_enrollment_start_date'=>$startdate,
707: 'default_enrollment_end_date' =>$enddate},$dom,$crs);
708: if ($put_result eq 'ok') {
709: $result .= "Set default start and end dates for course<br />";
710: #
711: # Refresh the course environment
712: &Apache::lonnet::coursedescription($ENV{'request.course.id'});
713: } else {
714: $result .= "Unable to set default dates for course:".$put_result.
715: '<br />';
716: }
717: return $result;
718: }
719:
720: ##
721: ## Single student enrollment routines (some of them)
722: ##
723: sub get_student_username_domain_form {
724: my $r = shift;
725: my $domform = &Apache::loncommon::select_dom_form
726: ($ENV{'request.role.domain'},'cudomain',0);
727: $r->print(<<END);
728: <input type="hidden" name="action" value="enrollstudent" />
729: <input type="hidden" name="state" value="gotusername" />
730: <h3>Enroll One Student</h3>
731: <table>
732: <tr><th>Username:</th>
733: <td><input type="text" name="cuname" size="15" /></td></tr>
734: <tr><th>Domain:</th>
735: <td>$domform</td></tr>
736: <tr><th> </th>
737: <td>
738: <input type="submit" name="Begin Enrollment" value="Begin Enrollment" />
739: </td></tr>
740: </table>
741: END
742: return;
743: }
744:
745: sub print_enroll_single_student_form {
746: my $r=shift;
747: $r->print("<h3>Enroll One Student</h3>");
748: #
749: my $username = $ENV{'form.cuname'};
750: my $domain = $ENV{'form.cudomain'};
751: my $home = &Apache::lonnet::homeserver($username,$domain);
752: # $new_user flags whether we are creating a new user or using an old one
753: my $new_user = 1;
754: if ($home ne 'no_host') {
755: $new_user = 0;
756: }
757: &Apache::lonnet::logthis('home = '.$home);
758: #
759: my $user_data_html = '';
760: my $javascript_validations = '';
761: if ($new_user) {
762: my $defdom=$ENV{'request.role.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: # Deal with date forms
1153: my $date_table = &date_setting_table($starttime,$endtime);
1154: #
1155: if (! exists($ENV{'form.Status'}) ||
1156: $ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
1157: $ENV{'form.Status'} = 'crap';
1158: }
1159: # Make sure student is enrolled in course
1160: $r->print(<<END);
1161: <p>
1162: <font size="+1">
1163: Only domain coordinators can change a users password.
1164: </font>
1165: </p>
1166: <input type="hidden" name="slogin" value="$sname" />
1167: <input type="hidden" name="sdomain" value="$sdom" />
1168: <input type="hidden" name="action" value="modifystudent" />
1169: <input type="hidden" name="state" value="done" />
1170: <input type="hidden" name="sortby" value="$sortby" />
1171: <input type="hidden" name="Status" value="$ENV{'form.Status'}" />
1172:
1173: <h2>Modify Enrollment for $info{'firstname'} $info{'middlename'}
1174: $info{'lastname'} $info{'generation'}, $sname\@$sdom</h2>
1175: <p>
1176: <b>Student Name</b>
1177: <table>
1178: <tr><th>First</th><th>Middle</th><th>Last</th><th>Generation</th></tr>
1179: <tr><td>
1180: <input type="text" name="firstname" value="$info{'firstname'}" /></td><td>
1181: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
1182: <input type="text" name="lastname" value="$info{'lastname'}" /></td><td>
1183: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
1184: </table>
1185: </p><p>
1186: <b>Student ID</b>: <input type="text" name="id" value="$info{'id'}" size="12"/>
1187: </p><p>
1188: <input type="checkbox" name="forceid" >
1189: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1190: (only do if you know what you are doing)
1191: </p><p>
1192: <b>Section</b>: <input type="text" name="section" value="$section" size="4"/>
1193: </p>
1194: <p>$date_table</p>
1195: <input type="submit" value="Submit Modifications" />
1196: </body></html>
1197: END
1198: return;
1199: }
1200:
1201: #
1202: # modify a single students section
1203: #
1204: sub modify_single_student {
1205: my $r = shift;
1206: #
1207: # Remove non alphanumeric values from the section
1208: $ENV{'form.section'} =~ s/\W//g;
1209: #
1210: # Do the date defaults first
1211: my ($starttime,$endtime) = &get_dates_from_form();
1212: if ($ENV{'form.makedatesdefault'}) {
1213: $r->print(&make_dates_default($starttime,$endtime));
1214: }
1215: # Get the 'sortby' and 'Status' variables so the user goes back to their
1216: # previous screen
1217: my $sortby = $ENV{'form.sortby'};
1218: my $status = $ENV{'form.Status'};
1219: #
1220: # We always need this information
1221: my $slogin = $ENV{'form.slogin'};
1222: my $sdom = $ENV{'form.sdomain'};
1223: #
1224: # Get the old data
1225: my %old=&Apache::lonnet::get('environment',
1226: ['firstname','middlename',
1227: 'lastname','generation','id'],
1228: $sdom, $slogin);
1229: $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
1230: $ENV{'request.course.id'});
1231: my ($tmp) = keys(%old);
1232: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1233: $r->print("There was an error determining the environment values ".
1234: " for $slogin \@ $sdom.");
1235: return;
1236: }
1237: undef $tmp;
1238: #
1239: # Get the new data
1240: my $firstname = $ENV{'form.firstname'};
1241: my $middlename = $ENV{'form.middlename'};
1242: my $lastname = $ENV{'form.lastname'};
1243: my $generation = $ENV{'form.generation'};
1244: my $section = $ENV{'form.section'};
1245: my $courseid = $ENV{'request.course.id'};
1246: my $sid = $ENV{'form.id'};
1247: my $displayable_starttime = localtime($starttime);
1248: my $displayable_endtime = localtime($endtime);
1249: #
1250: # check for forceid override
1251: if ((defined($old{'id'})) && ($old{'id'} ne '') &&
1252: ($sid ne $old{'id'}) && (! exists($ENV{'form.forceid'}))) {
1253: $r->print("<font color=\"ff0000\">You changed the students id ".
1254: " but did not disable the ID change safeguard.".
1255: " The students id will not be changed.</font>");
1256: $sid = $old{'id'};
1257: }
1258: #
1259: # talk to the user about what we are going to do
1260: $r->print(<<END);
1261: <h2>Modifying data for user $slogin \@ $sdom </h2>
1262: <h3>Student Information</h3>
1263: <table rules="rows" border="1" cellpadding="3" >
1264: <tr>
1265: <th> Field </th>
1266: <th> Old Value </th>
1267: <th> New Value </th>
1268: </tr>
1269: <tr>
1270: <td> <b>First name</b> </td>
1271: <td> $old{'firstname'} </td>
1272: <td> $firstname </td>
1273: </tr><tr>
1274: <td> <b>Middle name</b> </td>
1275: <td> $old{'middlename'} </td>
1276: <td> $middlename </td>
1277: </tr><tr>
1278: <td> <b>Last name</b> </td>
1279: <td> $old{'lastname'} </td>
1280: <td> $lastname </td>
1281: </tr><tr>
1282: <td> <b>Generation</b> </td>
1283: <td> $old{'generation'} </td>
1284: <td> $generation </td>
1285: </tr><tr>
1286: <td> <b>ID</b> </td>
1287: <td> $old{'id'} </td>
1288: <td> $sid </td>
1289: </tr><tr>
1290: <td> <b>Section</b> </td>
1291: <td> $old{'section'} </td>
1292: <td> $section</td>
1293: </tr>
1294: </table>
1295: <h3>Role Information</h3>
1296: <table>
1297: <tr><td align="right"><b>Start Time:</b></td><td> $displayable_starttime </td></tr>
1298: <tr><td align="right"><b>End Time:</b></td><td> $displayable_endtime </td></tr>
1299: </table>
1300: <p>
1301: END
1302: #
1303: # Send request(s) to modify data (final undef is for 'desiredhost',
1304: # which is a moot point because the student already has an account.
1305: my $modify_section_results = &modifystudent($sdom,$slogin,
1306: $ENV{'request.course.id'},
1307: $section,undef);
1308: if ($modify_section_results !~ /^ok/) {
1309: $r->print("An error occured during the attempt to change the ".
1310: "section for this student.<br />");
1311: }
1312: my $roleresults = &Apache::lonnet::modifystudent
1313: ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
1314: $generation,$section,$endtime,$starttime,$ENV{'form.forceid'});
1315: if ($roleresults eq 'refused' ) {
1316: $r->print("Your request to change the role information for this ".
1317: "student was refused. You do not appear to have ".
1318: "sufficient authority to change student information.");
1319: } elsif ($roleresults !~ /ok/) {
1320: $r->print("An error occurred during the attempt to change the role".
1321: " information for this student. <br />".
1322: "The error reported was ".
1323: $roleresults);
1324: &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
1325: " data for ".$slogin." \@ ".$sdom." by ".
1326: $ENV{'user.name'}." \@ ".$ENV{'user.domain'}.
1327: ":".$roleresults);
1328: } else { # everything is okay!
1329: $r->print("Student information updated successfully. <br />".
1330: "The student must log out and log in again to see ".
1331: "these changes.");
1332: }
1333: $r->print(<<END);
1334: </p><p>
1335: <input type="hidden" name="action" value="modifystudent" />
1336: <input type="hidden" name="sortby" value="$sortby" />
1337: <input type="hidden" name="Status" value="$status" />
1338: <a href="javascript:document.studentform.submit();">Modify another students data</a>
1339: </body></html>
1340: END
1341: return;
1342: }
1343:
1344: sub get_enrollment_data {
1345: my ($sname,$sdomain) = @_;
1346: my $courseid = $ENV{'request.course.id'};
1347: $courseid =~ s:_:/:g;
1348: my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
1349: my ($tmp) = keys(%roles);
1350: # Bail out if we were unable to get the students roles
1351: return "666" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
1352: # Go through the roles looking for enrollment in this course
1353: my ($end,$start) = (undef,undef);
1354: my $section = '';
1355: my $count = scalar(keys(%roles));
1356: while (my ($course,$role) = each(%roles)) {
1357: if ($course=~ /^\/$courseid\/*\s*(\w+)*_st$/ ) {
1358: #
1359: # Get active role
1360: $section=$1;
1361: (undef,$end,$start)=split(/\_/,$role);
1362: my $now=time;
1363: my $notactive=0;
1364: if ($start) {
1365: if ($now<$start) { $notactive=1; }
1366: }
1367: if ($end) {
1368: if ($now>$end) { $notactive=1; }
1369: }
1370: unless ($notactive) { return ($start,$end,$section); }
1371: }
1372: }
1373: return ($start,$end,$section);
1374: }
1375:
1376: #################################################
1377: #################################################
1378:
1379: =pod
1380:
1381: =item show_drop_list
1382:
1383: Display a list of students to drop
1384: Inputs:
1385:
1386: =over 4
1387:
1388: =item $r, Apache request
1389:
1390: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
1391:
1392: =item $keylist, array pointer returned from loncoursedata::get_classlist()
1393: which describes the order elements are stored in the %$classlist values.
1394:
1395: =item $nosort, if true, sorting links are omitted.
1396:
1397: =back
1398:
1399: =cut
1400:
1401: #################################################
1402: #################################################
1403: sub show_drop_list {
1404: my ($r,$classlist,$keylist,$nosort)=@_;
1405: my $cid=$ENV{'request.course.id'};
1406: if (! exists($ENV{'form.sortby'})) {
1407: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1408: ['sortby']);
1409: }
1410: my $sortby = $ENV{'form.sortby'};
1411: if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
1412: $sortby = 'username';
1413: }
1414: #
1415: my $action = "drop";
1416: $r->print(<<END);
1417: <input type="hidden" name="sortby" value="$sortby" />
1418: <input type="hidden" name="action" value="$action" />
1419: <input type="hidden" name="state" value="done" />
1420: <script>
1421: function checkAll(field) {
1422: for (i = 0; i < field.length; i++)
1423: field[i].checked = true ;
1424: }
1425:
1426: function uncheckAll(field) {
1427: for (i = 0; i < field.length; i++)
1428: field[i].checked = false ;
1429: }
1430: </script>
1431: <p>
1432: <input type="hidden" name="phase" value="four">
1433: END
1434:
1435: if ($nosort) {
1436: $r->print(<<END);
1437: <table border=2>
1438: <tr>
1439: <th> </th>
1440: <th>username</th>
1441: <th>domain</th>
1442: <th>ID</th>
1443: <th>student name</th>
1444: <th>section</th>
1445: </tr>
1446: END
1447:
1448: } else {
1449: $r->print(<<END);
1450: <table border=2>
1451: <tr><th> </th>
1452: <th>
1453: <a href="/adm/dropadd?action=$action&sortby=username">username</a>
1454: </th><th>
1455: <a href="/adm/dropadd?action=$action&sortby=domain">domain</a>
1456: </th><th>
1457: <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
1458: </th><th>
1459: <a href="/adm/dropadd?action=$action&sortby=fullname">student name</a>
1460: </th><th>
1461: <a href="/adm/dropadd?action=$action&sortby=section">section</a>
1462: </th>
1463: </tr>
1464: END
1465: }
1466: #
1467: # Sort the students
1468: my %index;
1469: my $i;
1470: foreach (@$keylist) {
1471: $index{$_} = $i++;
1472: }
1473: my $index = $index{$sortby};
1474: my $second = $index{'username'};
1475: my $third = $index{'domain'};
1476: my @Sorted_Students = sort {
1477: lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index])
1478: ||
1479: lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
1480: ||
1481: lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
1482: } (keys(%$classlist));
1483: foreach my $student (@Sorted_Students) {
1484: my $error;
1485: my $username = $classlist->{$student}->[$index{'username'}];
1486: my $domain = $classlist->{$student}->[$index{'domain'}];
1487: my $section = $classlist->{$student}->[$index{'section'}];
1488: my $name = $classlist->{$student}->[$index{'fullname'}];
1489: my $id = $classlist->{$student}->[$index{'id'}];
1490: my $status = $classlist->{$student}->[$index{'status'}];
1491: next if ($status ne 'Active');
1492: #
1493: $r->print(<<"END");
1494: <tr>
1495: <td><input type="checkbox" name="droplist" value="$student"></td>
1496: <td>$username</td>
1497: <td>$domain</td>
1498: <td>$id</td>
1499: <td>$name</td>
1500: <td>$section</td>
1501: </tr>
1502: END
1503: }
1504: $r->print('</table><br>');
1505: $r->print(<<"END");
1506: </p><p>
1507: <input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)">
1508: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)">
1509: <p><input type=submit value="Drop Students"></p>
1510: END
1511: return;
1512: }
1513:
1514: #
1515: # Print out the initial form to get the courselist file
1516: #
1517: sub print_first_courselist_upload_form {
1518: my $r=shift;
1519: my $upfile_select=&Apache::loncommon::upfile_select_html();
1520: my $create_classlist_help =
1521: &Apache::loncommon::help_open_topic("Course_Create_Class_List",
1522: "How do I create a class list from a spreadsheet");
1523: my $create_csv_help =
1524: &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
1525: "How do I create a CSV file from a spreadsheet");
1526: $r->print(<<ENDUPFORM);
1527: <input type=hidden name=phase value=two>
1528: <h3>Upload a courselist</h3>
1529: $upfile_select
1530: <p>
1531: <input type=submit name="fileupload" value="Upload Courselist">
1532: <input type="hidden" name="action" value="upload" />
1533: <input type="hidden" name="state" value="got_file" />
1534: <input type="checkbox" name="noFirstLine" /> Ignore First Line<br />
1535: </p>
1536: $create_classlist_help <br />
1537: $create_csv_help
1538: </body></html>
1539: ENDUPFORM
1540: return;
1541: }
1542:
1543: # ================================================= Drop/Add from uploaded file
1544: sub upfile_drop_add {
1545: my $r=shift;
1546: &Apache::loncommon::load_tmp_file($r);
1547: my @studentdata=&Apache::loncommon::upfile_record_sep();
1548: if($ENV{'form.noFirstLine'}){shift(@studentdata);}
1549: my @keyfields = split(/\,/,$ENV{'form.keyfields'});
1550: my $cid = $ENV{'request.course.id'};
1551: my %fields=();
1552: for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
1553: if ($ENV{'form.upfile_associate'} eq 'reverse') {
1554: if ($ENV{'form.f'.$i} ne 'none') {
1555: $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
1556: }
1557: } else {
1558: $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
1559: }
1560: }
1561: #
1562: my ($startdate,$enddate) = &get_dates_from_form();
1563: if ($ENV{'form.makedatesdefault'}) {
1564: $r->print(&make_dates_default($startdate,$enddate));
1565: }
1566: # Determine domain and desired host (home server)
1567: my $domain=$ENV{'form.lcdomain'};
1568: my $desiredhost = $ENV{'form.lcserver'};
1569: if (lc($desiredhost) eq 'default') {
1570: $desiredhost = undef;
1571: } else {
1572: my %home_servers = &Apache::loncommon::get_library_servers($domain);
1573: if (! exists($home_servers{$desiredhost})) {
1574: $r->print('<font color="#ff0000">Error:</font>'.
1575: 'Invalid home server specified');
1576: return;
1577: }
1578: }
1579: # Determine authentication mechanism
1580: my $amode = '';
1581: my $genpwd = '';
1582: if ($ENV{'form.login'} eq 'krb') {
1583: $amode='krb';
1584: $amode.=$ENV{'form.krbver'};
1585: $genpwd=$ENV{'form.krbarg'};
1586: } elsif ($ENV{'form.login'} eq 'int') {
1587: $amode='internal';
1588: if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
1589: $genpwd=$ENV{'form.intarg'};
1590: }
1591: } elsif ($ENV{'form.login'} eq 'loc') {
1592: $amode='localauth';
1593: if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
1594: $genpwd=$ENV{'form.locarg'};
1595: }
1596: }
1597: if ($amode =~ /^krb/) {
1598: if (! defined($genpwd) || $genpwd eq '') {
1599: $r->print('<font color="red" size="+1">'.
1600: 'Unable to enroll students:'.'</font> '.
1601: 'No Kerberos domain was specified.</p>');
1602: $amode = ''; # This causes the loop below to be skipped
1603: }
1604: }
1605: unless (($domain=~/\W/) || ($amode eq '')) {
1606: #######################################
1607: ## Enroll Students ##
1608: #######################################
1609: $r->print('<h3>Enrolling Students</h3>'."\n".'<p>');
1610: my $count=0;
1611: my $flushc=0;
1612: my %student=();
1613: # Get new classlist
1614: foreach (@studentdata) {
1615: my %entries=&Apache::loncommon::record_sep($_);
1616: # Determine student name
1617: unless (($entries{$fields{'username'}} eq '') ||
1618: (!defined($entries{$fields{'username'}}))) {
1619: my ($fname, $mname, $lname,$gen) = ('','','','');
1620: if (defined($fields{'names'})) {
1621: ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
1622: /([^\,]+)\,\s*(\w+)\s*(.*)$/);
1623: } else {
1624: if (defined($fields{'fname'})) {
1625: $fname=$entries{$fields{'fname'}};
1626: }
1627: if (defined($fields{'mname'})) {
1628: $mname=$entries{$fields{'mname'}};
1629: }
1630: if (defined($fields{'lname'})) {
1631: $lname=$entries{$fields{'lname'}};
1632: }
1633: if (defined($fields{'gen'})) {
1634: $gen=$entries{$fields{'gen'}};
1635: }
1636: }
1637: if ($entries{$fields{'username'}}=~/\W/) {
1638: $r->print('<br /><b>Unacceptable username: '.
1639: $entries{$fields{'username'}}.' for user '.
1640: $fname.' '.$mname.' '.$lname.' '.$gen.'</b>');
1641: } else {
1642: # determine section number
1643: my $sec='';
1644: my $username=$entries{$fields{'username'}};
1645: if (defined($fields{'sec'})) {
1646: if (defined($entries{$fields{'sec'}})) {
1647: $sec=$entries{$fields{'sec'}};
1648: }
1649: }
1650: # remove non alphanumeric values from section
1651: $sec =~ s/\W//g;
1652: # determine student id number
1653: my $id='';
1654: if (defined($fields{'id'})) {
1655: if (defined($entries{$fields{'id'}})) {
1656: $id=$entries{$fields{'id'}};
1657: }
1658: $id=~tr/A-Z/a-z/;
1659: }
1660: # determine email address
1661: my $email='';
1662: if (defined($fields{'email'})) {
1663: if (defined($entries{$fields{'email'}})) {
1664: $email=$entries{$fields{'email'}};
1665: unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
1666: }
1667: }
1668: # determine student password
1669: my $password='';
1670: if ($genpwd) {
1671: $password=$genpwd;
1672: } else {
1673: if (defined($fields{'ipwd'})) {
1674: if ($entries{$fields{'ipwd'}}) {
1675: $password=$entries{$fields{'ipwd'}};
1676: }
1677: }
1678: }
1679: # Clean up whitespace
1680: foreach (\$domain,\$username,\$id,\$fname,\$mname,
1681: \$lname,\$gen,\$sec) {
1682: $$_ =~ s/(\s+$|^\s+)//g;
1683: }
1684: if ($password || $ENV{'form.login'} eq 'loc') {
1685: &modifystudent($domain,$username,$cid,$sec,
1686: $desiredhost);
1687: my $reply=&Apache::lonnet::modifystudent
1688: ($domain,$username,$id,$amode,$password,
1689: $fname,$mname,$lname,$gen,$sec,$enddate,
1690: $startdate,$ENV{'form.forceid'},$desiredhost,
1691: $email);
1692: if ($reply ne 'ok') {
1693: $reply =~ s/^error://;
1694: $r->print('<br /><b>'.$username.'</b>:'.
1695: ' Unable to enroll: '.$reply);
1696: } else {
1697: $count++; $flushc++;
1698: $student{$username}=1;
1699: $r->print('. ');
1700: if ($flushc>15) {
1701: $r->rflush;
1702: $flushc=0;
1703: }
1704: }
1705: } else {
1706: $r->print('<br /><b>'.$username.'</b>:'.
1707: ' Unable to enroll: No password specified.');
1708: }
1709: }
1710: }
1711: } # end of foreach (@studentdata)
1712: $r->print('</p><p>Processed Students: '.$count.'</p>');
1713: $r->print("<p>If active, the new role will be available when the ".
1714: "students next log in to LON-CAPA.</p>");
1715: #####################################
1716: # Drop students #
1717: #####################################
1718: if ($ENV{'form.fullup'} eq 'yes') {
1719: $r->print('<h3>Dropping Students</h3>');
1720: # Get current classlist
1721: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
1722: if (! defined($classlist)) {
1723: $r->print("There are no students currently enrolled.\n");
1724: } else {
1725: # Remove the students we just added from the list of students.
1726: foreach (@studentdata) {
1727: my %entries=&Apache::loncommon::record_sep($_);
1728: unless (($entries{$fields{'username'}} eq '') ||
1729: (!defined($entries{$fields{'username'}}))) {
1730: delete($classlist->{$entries{$fields{'username'}}.
1731: ':'.$domain});
1732: }
1733: }
1734: # Print out list of dropped students.
1735: &show_drop_list($r,$classlist,$keylist,'nosort');
1736: }
1737: }
1738: } # end of unless
1739: }
1740:
1741: # ================================================================== Phase four
1742: sub drop_student_list {
1743: my $r=shift;
1744: my $count=0;
1745: my @droplist;
1746: if (ref($ENV{'form.droplist'})) {
1747: @droplist = @{$ENV{'form.droplist'}};
1748: } else {
1749: @droplist = ($ENV{'form.droplist'});
1750: }
1751: foreach (@droplist) {
1752: my ($uname,$udom)=split(/\:/,$_);
1753: # drop student
1754: my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
1755: if ($result eq 'ok' || $result eq 'ok:') {
1756: $r->print('Dropped '.$uname.' @ '.$udom.'<br>');
1757: $count++;
1758: } else {
1759: $r->print('Error dropping '.$uname.' @ '.$udom.': '.$result.
1760: '<br />');
1761: }
1762: }
1763: $r->print('<p><b>Dropped '.$count.' student(s).</b>');
1764: $r->print('<p>Re-enrollment will re-activate data.') if ($count);
1765: }
1766:
1767: ###################################################################
1768: ###################################################################
1769:
1770: =pod
1771:
1772: =item &handler
1773:
1774: The typical handler you see in all these modules. Takes $r, the
1775: http request, as an argument.
1776:
1777: The response to the request is governed by two form variables
1778:
1779: form.action form.state response
1780: ---------------------------------------------------
1781: undefined undefined print main menu
1782: upload undefined print courselist upload menu
1783: upload got_file deal with uploaded file,
1784: print the upload managing menu
1785: upload enrolling enroll students based on upload
1786: drop undefined print the classlist ready to drop
1787: drop done drop the selected students
1788: enrollstudent undefined print student username domain form
1789: enrollstudent gotusername print single student enroll menu
1790: enrollstudent enrolling enroll student
1791: classlist undefined print html classlist
1792: classlist csv print csv classlist
1793: modifystudent undefined print classlist to select student to modify
1794: modifystudent selected print modify student menu
1795: modifystudent done make modifications to student record
1796:
1797: =cut
1798:
1799: ###################################################################
1800: ###################################################################
1801: sub handler {
1802: my $r=shift;
1803: if ($r->header_only) {
1804: $r->content_type('text/html');
1805: $r->send_http_header;
1806: return OK;
1807: }
1808: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1809: ['action','state']);
1810: # Needs to be in a course
1811: if (! (($ENV{'request.course.fn'}) &&
1812: (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'})))) {
1813: # Not in a course, or not allowed to modify parms
1814: $ENV{'user.error.msg'}=
1815: "/adm/dropadd:cst:0:0:Cannot drop or add students";
1816: return HTTP_NOT_ACCEPTABLE;
1817: }
1818: #
1819: # Only output the header information if they did not request csv format
1820: #
1821: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
1822: $r->content_type('text/csv');
1823: } else {
1824: # Start page
1825: $r->content_type('text/html');
1826: $r->send_http_header;
1827: $r->print(&header());
1828: }
1829: #
1830: # Main switch on form.action and form.state, as appropriate
1831: if (! exists($ENV{'form.action'})) {
1832: &print_main_menu($r);
1833: } elsif ($ENV{'form.action'} eq 'upload') {
1834: if (! exists($ENV{'form.state'})) {
1835: &print_first_courselist_upload_form($r);
1836: } elsif ($ENV{'form.state'} eq 'got_file') {
1837: &print_upload_manager_form($r);
1838: } elsif ($ENV{'form.state'} eq 'enrolling') {
1839: if ($ENV{'form.datatoken'}) {
1840: &upfile_drop_add($r);
1841: } else {
1842: # Hmmm, this is an error
1843: }
1844: } else {
1845: &print_first_courselist_upload_form($r);
1846: }
1847: } elsif ($ENV{'form.action'} eq 'drop') {
1848: if (! exists($ENV{'form.state'})) {
1849: &print_drop_menu($r);
1850: } elsif ($ENV{'form.state'} eq 'done') {
1851: &drop_student_list($r);
1852: } else {
1853: &print_drop_menu($r);
1854: }
1855: } elsif ($ENV{'form.action'} eq 'enrollstudent') {
1856: if (! exists($ENV{'form.state'})) {
1857: &get_student_username_domain_form($r);
1858: } elsif ($ENV{'form.state'} eq 'gotusername') {
1859: &print_enroll_single_student_form($r);
1860: } elsif ($ENV{'form.state'} eq 'enrolling') {
1861: &enroll_single_student($r);
1862: } else {
1863: &get_student_username_domain_form($r);
1864: }
1865: } elsif ($ENV{'form.action'} eq 'classlist') {
1866: if (! exists($ENV{'form.state'})) {
1867: &print_html_classlist($r);
1868: } elsif ($ENV{'form.state'} eq 'csv') {
1869: &print_formatted_classlist($r,'csv');
1870: } elsif ($ENV{'form.state'} eq 'excel') {
1871: &print_formatted_classlist($r,'excel');
1872: } else {
1873: &print_html_classlist($r);
1874: }
1875: } elsif ($ENV{'form.action'} eq 'modifystudent') {
1876: if (! exists($ENV{'form.state'})) {
1877: &print_html_classlist($r);
1878: } elsif ($ENV{'form.state'} eq 'selected') {
1879: &print_modify_student_form($r);
1880: } elsif ($ENV{'form.state'} eq 'done') {
1881: &modify_single_student($r);
1882: } else {
1883: &print_html_classlist($r);
1884: }
1885: } else {
1886: # We should not end up here, but I guess it is possible
1887: &Apache::lonnet::logthis("Undetermined state in londropadd.pm. ".
1888: "form.action = ".$ENV{'form.action'}.
1889: "Someone should fix this.");
1890: &print_main_menu($r);
1891: }
1892: #
1893: # Finish up
1894: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
1895: $r->print("\n");
1896: } else {
1897: $r->print('</form></body></html>');
1898: }
1899: return OK;
1900: }
1901:
1902: ###################################################################
1903: ###################################################################
1904:
1905: 1;
1906: __END__
1907:
1908:
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