1: # The LearningOnline Network with CAPA
2: # Handler to drop and add students in courses
3: #
4: # $Id: londropadd.pm,v 1.35 2002/04/30 15:24:16 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: # YEAR=2000
35: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
36: #
37: # 10/11,10/12,10/16 Gerd Kortemeyer)
38: #
39: # 11/20,11/21,11/22,11/23,11/24,11/25,11/27,11/28,
40: # 12/08,12/12 Gerd Kortemeyer)
41: #
42: # 12/26,12/27,12/28,
43: # YEAR=2001
44: # 01/01/01,01/15,02/10,02/13,02/14,02/22 Gerd Kortemeyer
45: # 8/6 Scott Harrison
46: # Guy Albertelli
47: # 9/25 Gerd Kortemeyer
48: # 12/19 Guy Albertelli
49: # YEAR=2002
50: # 1/4 Gerd Kortemeyer
51:
52: package Apache::londropadd;
53:
54: use strict;
55: use Apache::lonnet();
56: use Apache::loncommon();
57: use Apache::Constants qw(:common :http REDIRECT);
58:
59: # ================================================================ Print header
60:
61: sub header {
62: return(<<ENDHEAD);
63: <html>
64: <head>
65: <title>LON-CAPA Student Drop/Add</title>
66: </head>
67: <body bgcolor="#FFFFFF">
68: <img align=right src=/adm/lonIcons/lonlogos.gif>
69: <h1>Drop/Add Students</h1>
70: <form method="post" enctype="multipart/form-data"
71: action="/adm/dropadd" name="studentform">
72: <h2>Course: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}</h2>
73: ENDHEAD
74: }
75:
76: # =========== Drop student from all sections of a course, except optional $csec
77: sub modifystudent {
78: my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
79: # if $csec is undefined, drop the student from all the courses matching
80: # this one. If $csec is defined, drop them from all other sections of
81: # this course and add them to section $csec
82: $courseid=~s/\_/\//g;
83: $courseid=~s/^(\w)/\/$1/;
84: my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
85: my ($tmp) = keys(%roles);
86: # Bail out if we were unable to get the students roles
87: return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
88: # Go through the roles looking for enrollment in this course
89: my $result = '';
90: foreach my $course (keys(%roles)) {
91: if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
92: # We are in this course
93: my $section=$1;
94: $section='' if ($course eq $courseid.'_st');
95: if ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
96: my (undef,$end,$start)=split(/\_/,$roles{$course});
97: my $now=time;
98: if (!($start && ($now<$start)) || !($end && ($now>$end))) {
99: my $reply=&Apache::lonnet::modifystudent
100: ($udom,$unam,'','','','','','','',
101: $section,time,undef,undef,$desiredhost);
102: $result .= $reply.':';
103: }
104: }
105: }
106: }
107: if ($result eq '') {
108: $result eq 'Unable to find section for this student';
109: } elsif ($result =~ /^(ok:)+$/) {
110: $result eq 'ok';
111: }
112: return $result;
113: }
114:
115: # ============ build a domain and server selection form
116: sub domain_form {
117: my ($defdom) = @_;
118: # Set up domain and server selection forms
119: #
120: # Get the domains
121: my @domains = &Apache::loncommon::get_domains();
122: # build up the menu information to be passed to
123: # &Apache::loncommon::linked_select_forms
124: my %select_menus;
125: foreach my $dom (@domains) {
126: # set up the text for this domain
127: $select_menus{$dom}->{'text'}= $dom;
128: # we want a choice of 'default' as the default in the second menu
129: $select_menus{$dom}->{'default'}= 'default';
130: $select_menus{$dom}->{'select2'}->{'default'} = 'default';
131: # Now build up the other items in the second menu
132: my %servers = &Apache::loncommon::get_home_servers($dom);
133: foreach my $server (keys(%servers)) {
134: $select_menus{$dom}->{'select2'}->{$server}
135: = "$server $servers{$server}";
136: }
137: }
138: my $result = &Apache::loncommon::linked_select_forms
139: ('studentform',' with home server ',$defdom,
140: 'lcdomain','lcserver',\%select_menus);
141: return $result;
142: }
143:
144: # ============================================================== Menu Phase One
145: sub menu_phase_one {
146: my $r=shift;
147: my $upfile_select=&Apache::loncommon::upfile_select_html();
148: $r->print(<<ENDUPFORM);
149: <input type=hidden name=phase value=two>
150: <hr>
151: <h3>Upload a courselist</h3>
152: $upfile_select
153: <p><input type=submit name=fileupload value="Upload Courselist">
154: <hr>
155: <h3>Enroll a single student</h3>
156: <p><input type=submit name=enroll value="Enroll Student">
157: <hr>
158: <h3>Drop students</h3>
159: <p><input type=submit name=drop value="Selection List">
160: ENDUPFORM
161: }
162:
163: sub phase_two_header {
164: my ($r,$datatoken,$distotal,$krbdefdom)=@_;
165: my $javascript;
166: if ($ENV{'form.upfile_associate'} eq 'reverse') {
167: $javascript=&phase_two_javascript_reverse_associate();
168: } else {
169: $javascript=&phase_two_javascript_forward_associate();
170: }
171: my $javascript_validations=&javascript_validations($krbdefdom);
172: $r->print(<<ENDPICK);
173: <hr>
174: <h3>Identify fields</h3>
175: Total number of records found in file: $distotal <hr />
176: Enter as many fields as you can. The system will inform you and bring you back
177: to this page if the data selected is insufficient to run your class.<hr />
178: <input type="submit" name="associate" value="Reverse Association" />
179: <input type="hidden" name="phase" value="three" />
180: <input type="hidden" name="datatoken" value="$datatoken" />
181: <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
182: <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
183: <input type="hidden" name="upfile_associate"
184: value="$ENV{'form.upfile_associate'}" />
185: <hr />
186: <script type="text/javascript" language="Javascript">
187: $javascript
188: $javascript_validations
189: </script>
190: ENDPICK
191: }
192:
193: sub javascript_validations {
194: my ($krbdefdom)=@_;
195: my %param = ( formname => 'studentform',
196: kerb_def_dom => $krbdefdom );
197: my $authheader = &Apache::loncommon::authform_header(%param);
198: return (<<ENDPICK);
199: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec) {
200: var foundatype=0;
201: var message='';
202: if (founduname==0) {
203: alert('You need to specify the username field');
204: return;
205: }
206: if (current.radiovalue == null || current.radiovalue == 'nochange') {
207: // They did not check any of the login radiobuttons.
208: alert('You must choose an authentication type');
209: return;
210: }
211: foundatype=1;
212: if (current.argfield == null || current.argfield == '') {
213: var alertmsg = '';
214: switch (current.value) {
215: case 'krb':
216: alertmsg = 'You need to specify the Kerberos domain';
217: break;
218: case 'loc':
219: case 'fsys':
220: alertmsg = 'You need to specify the initial password';
221: break;
222: case 'fsys':
223: alertmsg = '';
224: break;
225: default:
226: alertmsg = '';
227: }
228: if (alertmsg != '') {
229: alert(alertmsg);
230: return;
231: }
232: }
233:
234: if (foundname==0) { message='No name fields specified. '; }
235: if (foundid==0) { message+='No ID or student number field specified. '; }
236: if (foundsec==0) { message+='No section or group field specified. '; }
237: if (vf.startdate.value=='') {
238: message+='No starting date set. ';
239: }
240: if (vf.enddate.value=='') {
241: message+='No ending date set. ';
242: }
243: if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
244: if (Math.round(vf.enddate.value)<Math.round(vf.startdate.value)) {
245: alert('Ending date is before starting date');
246: return;
247: }
248: }
249: if (message!='') {
250: message+='Continue enrollment?';
251: if (confirm(message)) {
252: pclose();
253: vf.submit();
254: }
255: } else {
256: pclose();
257: vf.submit();
258: }
259: }
260:
261:
262: function pclose() {
263: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
264: "height=350,width=350,scrollbars=no,menubar=no");
265: parmwin.close();
266: }
267:
268: function pjump(type,dis,value,marker,ret,call) {
269: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
270: +"&value="+escape(value)+"&marker="+escape(marker)
271: +"&return="+escape(ret)
272: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
273: "height=350,width=350,scrollbars=no,menubar=no");
274:
275: }
276:
277: function dateset() {
278: if (document.studentform.pres_marker.value=='end') {
279: document.studentform.enddate.value=
280: document.studentform.pres_value.value;
281: }
282: if (document.studentform.pres_marker.value=='start') {
283: document.studentform.startdate.value=
284: document.studentform.pres_value.value;
285: }
286: pclose();
287: }
288:
289: $authheader
290: ENDPICK
291:
292: }
293:
294: sub phase_two_javascript_forward_associate {
295: return(<<ENDPICK);
296: function verify(vf) {
297: var founduname=0;
298: var foundpwd=0;
299: var foundname=0;
300: var foundid=0;
301: var foundsec=0;
302: var tw;
303: for (i=0;i<=vf.nfields.value;i++) {
304: tw=eval('vf.f'+i+'.selectedIndex');
305: if (tw==1) { founduname=1; }
306: if ((tw>=2) && (tw<=6)) { foundname=1; }
307: if (tw==7) { foundid=1; }
308: if (tw==8) { foundsec=1; }
309: if (tw==9) { foundpwd=1; }
310: }
311: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
312: }
313:
314: function flip(vf,tf) {
315: var nw=eval('vf.f'+tf+'.selectedIndex');
316: var i;
317: for (i=0;i<=vf.nfields.value;i++) {
318: if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
319: eval('vf.f'+i+'.selectedIndex=0;')
320: }
321: }
322: if (tf==1 && nw!=0) {
323: for (i=2;i<=5;i++) {
324: eval('vf.f'+i+'.selectedIndex=0;')
325: }
326: }
327: if (nw==2) {
328: for (i=0;i<=vf.nfields.value;i++) {
329: if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
330: (eval('vf.f'+i+'.selectedIndex')<=6)) {
331: eval('vf.f'+i+'.selectedIndex=0;')
332: }
333: }
334: }
335: if ((nw>=3) && (nw<=6)) {
336: for (i=0;i<=vf.nfields.value;i++) {
337: if (eval('vf.f'+i+'.selectedIndex')==2) {
338: eval('vf.f'+i+'.selectedIndex=0;')
339: }
340: }
341: }
342: if (nw==9) {
343: changed_radio('int',document.studentform);
344: set_auth_radio_buttons('int',document.studentform);
345: vf.intarg.value='';
346: vf.krbarg.value='';
347: vf.locarg.value='';
348: }
349: }
350:
351: function clearpwd(vf) {
352: var i;
353: for (i=0;i<=vf.nfields.value;i++) {
354: if (eval('vf.f'+i+'.selectedIndex')==9) {
355: eval('vf.f'+i+'.selectedIndex=0;')
356: }
357: }
358: }
359:
360: ENDPICK
361: }
362:
363: sub phase_two_javascript_reverse_associate {
364: return(<<ENDPICK);
365: function verify(vf) {
366: var founduname=0;
367: var foundpwd=0;
368: var foundname=0;
369: var foundid=0;
370: var foundsec=0;
371: var tw;
372: for (i=0;i<=vf.nfields.value;i++) {
373: tw=eval('vf.f'+i+'.selectedIndex');
374: if (i==0 && tw!=0) { founduname=1; }
375: if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
376: if (i==6 && tw!=0) { foundid=1; }
377: if (i==7 && tw!=0) { foundsec=1; }
378: if (i==8 && tw!=0) { foundpwd=1; }
379: }
380: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
381: }
382:
383: function flip(vf,tf) {
384: var nw=eval('vf.f'+tf+'.selectedIndex');
385: var i;
386: // picked the all one one name field, reset the other name ones to blank
387: if (tf==1 && nw!=0) {
388: for (i=2;i<=5;i++) {
389: eval('vf.f'+i+'.selectedIndex=0;')
390: }
391: }
392: //picked one of the piecewise name fields, reset the all in
393: //one field to blank
394: if ((tf>=2) && (tf<=5) && (nw!=0)) {
395: eval('vf.f1.selectedIndex=0;')
396: }
397: // intial password specified, pick internal authentication
398: if (tf==8 && nw!=0) {
399: changed_radio('int',document.studentform);
400: set_auth_radio_buttons('int',document.studentform);
401: vf.krbarg.value='';
402: vf.intarg.value='';
403: vf.locarg.value='';
404: }
405: }
406:
407: function clearpwd(vf) {
408: var i;
409: if (eval('vf.f8.selectedIndex')!=0) {
410: eval('vf.f8.selectedIndex=0;')
411: }
412: }
413: ENDPICK
414: }
415:
416: sub phase_two_end {
417: my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
418: my %param = ( formname => 'document.studentform');
419: my $krbform = &Apache::loncommon::authform_kerberos(%param);
420: my $intform = &Apache::loncommon::authform_internal(%param);
421: my $locform = &Apache::loncommon::authform_local(%param);
422: my $domform = &domain_form($defdom);
423: $r->print(<<ENDPICK);
424: </table>
425: <input type=hidden name=nfields value=$i>
426: <input type=hidden name=keyfields value="$keyfields">
427: <h3>Login Type</h3>
428: <p>Note: this will not take effect if the user already exists</p>
429: <p>
430: $krbform
431: </p>
432: <p>
433: $intform
434: </p>
435: <p>
436: $locform
437: </p>
438: <h3>LON-CAPA Domain for Students</h3>
439: LON-CAPA domain: $domform <p>
440: <h3>Starting and Ending Dates</h3>
441: <input type="hidden" value='' name="pres_value" >
442: <input type="hidden" value='' name="pres_type" >
443: <input type="hidden" value='' name="pres_marker" >
444: <input type="hidden" value='$today' name="startdate" >
445: <input type="hidden" value='$halfyear' name="enddate" >
446: <a
447: href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
448: >Set Starting Date</a><p>
449:
450: <a
451: href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
452: >Set Ending Date</a><p>
453: <h3>Full Update</h3>
454: <input type=checkbox name=fullup value=yes> Full update
455: (also print list of users not enrolled anymore)<p>
456: <h3>ID/Student Number</h3>
457: <input type=checkbox name=forceid value=yes>
458: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
459: (only do if you know what you are doing)<p>
460: <input type="button" onClick="verify(this.form)" value="Update Courselist"><br>
461: Note: for large courses, this operation might be time consuming.
462: ENDPICK
463: }
464:
465: # ======================================================= Menu Phase Two Upload
466: sub menu_phase_two_upload {
467: my $r=shift;
468:
469: my $datatoken;
470: if (!$ENV{'form.datatoken'}) {
471: $datatoken=&Apache::loncommon::upfile_store($r);
472: } else {
473: $datatoken=$ENV{'form.datatoken'};
474: &Apache::loncommon::load_tmp_file($r);
475: }
476: my @records=&Apache::loncommon::upfile_record_sep();
477: my $total=$#records;
478: my $distotal=$total+1;
479: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
480: my $krbdefdom=$1;
481: $krbdefdom=~tr/a-z/A-Z/;
482: my $today=time;
483: my $halfyear=$today+15552000;
484: my $defdom=$r->dir_config('lonDefDomain');
485: &phase_two_header($r,$datatoken,$distotal,$krbdefdom);
486: my $i;
487: my $keyfields;
488: if ($total>=0) {
489: my @d=(['username','Username'],['names','Last Name, First Names'],
490: ['fname','First Name'],['mname','Middle Names/Initials'],
491: ['lname','Last Name'],['gen','Generation'],
492: ['id','ID/Student Number'],['sec','Group/Section'],
493: ['ipwd','Initial Password']);
494: if ($ENV{'form.upfile_associate'} eq 'reverse') {
495: &Apache::loncommon::csv_print_samples($r,\@records);
496: $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
497: foreach (@d) { $keyfields.=$_->[0].','; }
498: chop($keyfields);
499: } else {
500: unshift(@d,['none','']);
501: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
502: my %sone=&Apache::loncommon::record_sep($records[0]);
503: $keyfields=join(',',sort(keys(%sone)));
504: }
505: }
506: &phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear);
507: }
508:
509: # ======================================================= Enroll single student
510: sub enroll_single_student {
511: my $r=shift;
512: $r->print('<h3>Enrolling Student</h3>');
513: $r->print('<p>Enrolling '.$ENV{'form.cuname'}." in domain ".
514: $ENV{'form.lcdomain'}.'</p>');
515: if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
516: ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
517: # Deal with home server selection
518: my $domain=$ENV{'form.lcdomain'};
519: my $desiredhost = $ENV{'form.lcserver'};
520: if (lc($desiredhost) eq 'default') {
521: $desiredhost = undef;
522: } else {
523: my %home_servers = &Apache::loncommon::get_home_servers($domain);
524: if (! exists($home_servers{$desiredhost})) {
525: $r->print('<font color="#ff0000">Error:</font>'.
526: 'Invalid home server specified');
527: return;
528: }
529: }
530: $r->print(" with server $desiredhost :") if (defined($desiredhost));
531: # End of home server selection logic
532: my $amode='';
533: my $genpwd='';
534: if ($ENV{'form.login'} eq 'krb') {
535: $amode='krb4';
536: $genpwd=$ENV{'form.krbarg'};
537: } elsif ($ENV{'form.login'} eq 'int') {
538: $amode='internal';
539: $genpwd=$ENV{'form.intarg'};
540: } elsif ($ENV{'form.login'} eq 'loc') {
541: $amode='localauth';
542: $genpwd=$ENV{'form.locarg'};
543: if (!$genpwd) { $genpwd=" "; }
544: }
545: my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'},
546: $ENV{'form.lcdomain'});
547: if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
548: &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
549: $ENV{'request.course.id'},$ENV{'form.csec'},
550: $desiredhost);
551: $r->print(&Apache::lonnet::modifystudent(
552: $ENV{'form.lcdomain'},$ENV{'form.cuname'},
553: $ENV{'form.cstid'},$amode,$genpwd,
554: $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
555: $ENV{'form.clast'},$ENV{'form.cgen'},
556: $ENV{'form.csec'},$ENV{'form.enddate'},
557: $ENV{'form.startdate'},$ENV{'form.forceid'},
558: $desiredhost));
559: } else {
560: $r->print('<p><font color="#ff0000">ERROR</font> '.
561: 'Invalid login mode or password. '.
562: 'Unable to enroll '.$ENV{'form.cuname'}.'.</p>');
563: }
564: } else {
565: $r->print('Invalid username or domain');
566: }
567: }
568:
569: # ======================================================= Menu Phase Two Enroll
570: sub menu_phase_two_enroll {
571: my $r=shift;
572: my ($krbdefdom) = $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
573: $krbdefdom=~tr/a-z/A-Z/;
574: my $today = time;
575: my $halfyear = $today+15552000;
576: my $defdom=$r->dir_config('lonDefDomain');
577: my $javascript_validations=&javascript_validations($krbdefdom);
578: # Set up authentication forms
579: my %param = ( formname => 'document.studentform');
580: my $krbform = &Apache::loncommon::authform_kerberos(%param);
581: my $intform = &Apache::loncommon::authform_internal(%param);
582: my $locform = &Apache::loncommon::authform_local(%param);
583: # Set up domain selection form
584: my $domform = &domain_form($defdom);
585: # Print it all out
586: $r->print(<<ENDSENROLL);
587: <script type="text/javascript" language="Javascript">
588: function verify(vf) {
589: var founduname=0;
590: var foundpwd=0;
591: var foundname=0;
592: var foundid=0;
593: var foundsec=0;
594: var tw;
595: if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') &&
596: (typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
597: founduname=1;
598: }
599: if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
600: (typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
601: foundname=1;
602: }
603: if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
604: foundsec=1;
605: }
606: if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
607: foundid=1;
608: }
609: if (founduname==0) {
610: alert('You need to specify at least the username and domain fields');
611: return;
612: }
613: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
614: }
615:
616: $javascript_validations
617:
618: function clearpwd(vf) {
619: //nothing else needs clearing
620: }
621:
622: </script>
623: <h3>Personal Data</h3>
624: First Name: <input type="text" name="cfirst" size="15"><br>
625: Middle Name: <input type="text" name="cmiddle" size="15"><br>
626: Last Name: <input type="text" name="clast" size="15"><br>
627: Generation: <input type="text" name="cgen" size="5">
628:
629: <p>ID/Student Number: <input type="text" name="cstid" size="10"></p>
630:
631: <p>Group/Section: <input type=text name=csec size=5></p>
632:
633: <h3>Login Data</h3>
634: <p>Username: <input type="text" name="cuname" size="15"></p>
635: <p>Domain: $domform</p>
636: <p>Note: login settings below will not take effect if the user already exists
637: </p><p>
638: $krbform
639: </p><p>
640: $intform
641: </p><p>
642: $locform
643: </p><p>
644: <h3>Starting and Ending Dates</h3>
645: <input type="hidden" value='' name="pres_value">
646: <input type="hidden" value='' name="pres_type">
647: <input type="hidden" value='' name="pres_marker">
648: <input type="hidden" value='$today' name=startdate>
649: <input type="hidden" value='$halfyear' name=enddate>
650: </p><p>
651: <a
652: href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
653: >Set Starting Date</a>
654: </p><p>
655: <a
656: href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
657: >Set Ending Date</a>
658: </p><p>
659: <h3>ID/Student Number</h3>
660: <input type="checkbox" name="forceid" value="yes">
661: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
662: (only do if you know what you are doing)<p>
663: <input type="button" onClick="verify(this.form)" value="Enroll as student"><br>
664: <input type="hidden" name="phase" value="five">
665: </p>
666: ENDSENROLL
667: }
668:
669: # =================================================== get the current classlist
670: sub get_current_classlist {
671: my ($domain,$identifier) = @_;
672: # domain is the domain the class is being run in
673: # identifier is the internal, unique identifier for the class.
674: my %currentlist=();
675: my $now=time;
676: my %results=&Apache::lonnet::dump('classlist',$domain,$identifier);
677: my ($tmp) = keys(%results);
678: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
679: foreach my $student (keys(%results)) {
680: # Extract the start and end dates
681: my ($end,$start)=split(/\:/,$results{$student});
682: # If the class isn't over, put it in the list
683: unless (($end) && ($now>$end)) {
684: $currentlist{$student}=1;
685: }
686: }
687: return (undef,%currentlist);
688: } else {
689: return ($tmp,undef);
690: }
691: }
692:
693: # ========================================================= Menu Phase Two Drop
694: sub menu_phase_two_drop {
695: my $r=shift;
696: my $cid=$ENV{'request.course.id'};
697: my ($error,%currentlist)=&get_current_classlist($ENV{'course.'.$cid.'.domain'},
698: $ENV{'course.'.$cid.'.num'});
699: if (defined($error)) {
700: $r->print('<pre>ERROR:$error</pre>');
701: }
702: if (!defined(%currentlist)) {
703: $r->print("There are no students currently enrolled.\n");
704: } else {
705: # Print out the available choices
706: &show_drop_list($r,%currentlist);
707: }
708: }
709:
710: # =================================================== Show student list to drop
711: sub show_drop_list {
712: my ($r,%currentlist)=@_;
713: my $cid=$ENV{'request.course.id'};
714: $r->print(<<'END');
715: <script>
716: function checkAll(field)
717: {
718: for (i = 0; i < field.length; i++)
719: field[i].checked = true ;
720: }
721:
722: function uncheckAll(field)
723: {
724: for (i = 0; i < field.length; i++)
725: field[i].checked = false ;
726: }
727: </script>
728: <p>
729: <input type="hidden" name="phase" value="four">
730: <table border=2>
731: <tr><th> </th><th>username</th><th>domain</th>
732: <th>ID</th><th>student name</th><th>generation</th>
733: <th>section</th></tr>
734: END
735: foreach (sort keys %currentlist) {
736: my ($sname,$sdom)=split(/\:/,$_);
737: my %reply=&Apache::lonnet::idrget($sdom,$sname);
738: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
739: my %info=&Apache::lonnet::get('environment',
740: ['firstname','middlename',
741: 'lastname','generation'],
742: $sdom, $sname);
743: my ($tmp) = keys(%info);
744: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
745: $r->print('<tr><td colspan="7"><font color="red">'.
746: 'Internal error: unable to get environment '.
747: 'for '.$sname.' in domain '.$sdom.'</font></td></tr>');
748: } else {
749: $r->print(<<"END");
750: <tr>
751: <td><input type="checkbox" name="droplist" value="$_"></td>
752: <td>$sname</td>
753: <td>$sdom</td>
754: <td>$reply{$sname}</td>
755: <td>$info{'lastname'}, $info{'firstname'} $info{'middlename'}</td>
756: <td>$info{'generation'}</td>
757: <td>$ssec</td>
758: </tr>
759: END
760: }
761: }
762: $r->print('</table><br>');
763: $r->print(<<"END");
764: </p><p>
765: <input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)">
766: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)">
767: <p><input type=submit value="Drop Students"></p>
768: END
769: }
770:
771: # ================================================= Drop/Add from uploaded file
772: sub upfile_drop_add {
773: my $r=shift;
774: &Apache::loncommon::load_tmp_file($r);
775: my @studentdata=&Apache::loncommon::upfile_record_sep();
776: my @keyfields = split(/\,/,$ENV{'form.keyfields'});
777: my $cid = $ENV{'request.course.id'};
778: my %fields=();
779: for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
780: if ($ENV{'form.upfile_associate'} eq 'reverse') {
781: if ($ENV{'form.f'.$i} ne 'none') {
782: $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
783: }
784: } else {
785: $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
786: }
787: }
788: #
789: my $startdate = $ENV{'form.startdate'};
790: my $enddate = $ENV{'form.enddate'};
791: if ($startdate=~/\D/) { $startdate=''; }
792: if ($enddate=~/\D/) { $enddate=''; }
793: # Determine domain and desired host (home server)
794: my $domain=$ENV{'form.lcdomain'};
795: my $desiredhost = $ENV{'form.lcserver'};
796: if (lc($desiredhost) eq 'default') {
797: $desiredhost = undef;
798: } else {
799: my %home_servers = &Apache::loncommon::get_home_servers($domain);
800: if (! exists($home_servers{$desiredhost})) {
801: $r->print('<font color="#ff0000">Error:</font>'.
802: 'Invalid home server specified');
803: return;
804: }
805: }
806: # Determine authentication mechanism
807: my $amode = '';
808: my $genpwd = '';
809: if ($ENV{'form.login'} eq 'krb') {
810: $amode='krb4';
811: $genpwd=$ENV{'form.krbarg'};
812: } elsif ($ENV{'form.login'} eq 'int') {
813: $amode='internal';
814: if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
815: $genpwd=$ENV{'form.intarg'};
816: }
817: } elsif ($ENV{'form.login'} eq 'loc') {
818: $amode='localauth';
819: if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
820: $genpwd=$ENV{'form.locarg'};
821: }
822: }
823: unless (($domain=~/\W/) || ($amode eq '')) {
824: #######################################
825: ## Enroll Students ##
826: #######################################
827: $r->print('<h3>Enrolling Students</h3>');
828: my $count=0;
829: my $flushc=0;
830: my %student=();
831: # Get new classlist
832: foreach (@studentdata) {
833: my %entries=&Apache::loncommon::record_sep($_);
834: # Determine student name
835: unless (($entries{$fields{'username'}} eq '') ||
836: (!defined($entries{$fields{'username'}}))) {
837: my ($fname, $mname, $lname,$gen) = ('','','','');
838: if (defined($fields{'names'})) {
839: ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
840: /([^\,]+)\,\s*(\w+)\s*(.*)$/);
841: } else {
842: if (defined($fields{'fname'})) {
843: $fname=$entries{$fields{'fname'}};
844: }
845: if (defined($fields{'mname'})) {
846: $mname=$entries{$fields{'mname'}};
847: }
848: if (defined($fields{'lname'})) {
849: $lname=$entries{$fields{'lname'}};
850: }
851: if (defined($fields{'gen'})) {
852: $gen=$entries{$fields{'gen'}};
853: }
854: }
855: if ($entries{$fields{'username'}}=~/\W/) {
856: $r->print('<p><b>Unacceptable username: '.
857: $entries{$fields{'username'}}.' for user '.
858: $fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
859: } else {
860: # determine section number
861: my $sec='';
862: my $username=$entries{$fields{'username'}};
863: if (defined($fields{'sec'})) {
864: if (defined($entries{$fields{'sec'}})) {
865: $sec=$entries{$fields{'sec'}};
866: }
867: }
868: # determine student id number
869: my $id='';
870: if (defined($fields{'id'})) {
871: if (defined($entries{$fields{'id'}})) {
872: $id=$entries{$fields{'id'}};
873: }
874: $id=~tr/A-Z/a-z/;
875: }
876: # determine student password
877: my $password='';
878: if ($genpwd) {
879: $password=$genpwd;
880: } else {
881: if (defined($fields{'ipwd'})) {
882: if ($entries{$fields{'ipwd'}}) {
883: $password=$entries{$fields{'ipwd'}};
884: }
885: }
886: }
887: if ($password) {
888: &modifystudent($domain,$username,$cid,$sec,
889: $desiredhost);
890: my $reply=&Apache::lonnet::modifystudent
891: ($domain,$username,$id,$amode,$password,
892: $fname,$mname,$lname,$gen,$sec,$enddate,
893: $startdate,$ENV{'form.forceid'},$desiredhost);
894: if ($reply ne 'ok') {
895: $r->print('<p><b>'.
896: 'Error enrolling '.$username.': '.
897: $reply.'</b></p>');
898: } else {
899: $count++; $flushc++;
900: $student{$username}=1;
901: $r->print('. ');
902: if ($flushc>15) {
903: $r->rflush;
904: $flushc=0;
905: }
906: }
907: } else {
908: $r->print("<p><b>No password for $username</b><p>");
909: }
910: }
911: }
912: } # end of foreach (@studentdata)
913: $r->print('<p>Processed Students: '.$count);
914: #####################################
915: # Drop students #
916: #####################################
917: if ($ENV{'form.fullup'} eq 'yes') {
918: $r->print('<h3>Dropping Students</h3>');
919: # Get current classlist
920: my ($error,%currentlist)=&get_current_classlist
921: ($ENV{'course.'.$cid.'.domain'},
922: $ENV{'course.'.$cid.'.num'});
923: if (defined($error)) {
924: $r->print('<pre>ERROR:$error</pre>');
925: }
926: if (defined(%currentlist)) {
927: # Drop the students
928: foreach (@studentdata) {
929: my %entries=&Apache::loncommon::record_sep($_);
930: unless (($entries{$fields{'username'}} eq '') ||
931: (!defined($entries{$fields{'username'}}))) {
932: delete($currentlist{$entries{$fields{'username'}}.
933: ':'.$domain});
934: }
935: }
936: # Print out list of dropped students
937: &show_drop_list($r,%currentlist);
938: } else {
939: $r->print("There are no students currently enrolled.\n");
940: }
941: }
942: } # end of unless
943: }
944:
945: # ================================================================== Phase four
946: sub drop_student_list {
947: my $r=shift;
948: my $count=0;
949: my @droplist;
950: if (ref($ENV{'form.droplist'})) {
951: @droplist = @{$ENV{'form.droplist'}};
952: } else {
953: @droplist = ($ENV{'form.droplist'});
954: }
955: foreach (@droplist) {
956: my ($uname,$udom)=split(/\:/,$_);
957: my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
958: if ($result eq 'ok') {
959: $r->print('Dropped '.$uname.' at '.$udom.'<br>');
960: } else {
961: $r->print('Error dropping '.$uname.' at '.$udom.': '.$result.
962: '<br />');
963: }
964: $count++;
965: }
966: $r->print('<p><b>Dropped '.$count.' student(s).</b>');
967: $r->print('<p>Re-enrollment will re-activate data.');
968: }
969:
970: # ================================================================ Main Handler
971: sub handler {
972: my $r=shift;
973: if ($r->header_only) {
974: $r->content_type('text/html');
975: $r->send_http_header;
976: return OK;
977: }
978: # Needs to be in a course
979: if (($ENV{'request.course.fn'}) &&
980: (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) {
981: # Start page
982: $r->content_type('text/html');
983: $r->send_http_header;
984: $r->print(&header());
985: # Phase one, initial screen
986: unless ($ENV{'form.phase'}) {
987: &menu_phase_one($r);
988: }
989: # Phase two
990: if ($ENV{'form.associate'} eq 'Reverse Association') {
991: $ENV{'form.phase'} = 'two';
992: if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
993: $ENV{'form.upfile_associate'} = 'reverse';
994: } else {
995: $ENV{'form.upfile_associate'} = 'forward';
996: }
997: }
998: if ($ENV{'form.phase'} eq 'two') {
999: if ($ENV{'form.fileupload'}) {
1000: &menu_phase_two_upload($r);
1001: } elsif ($ENV{'form.enroll'}) {
1002: &menu_phase_two_enroll($r);
1003: } elsif ($ENV{'form.drop'}) {
1004: &menu_phase_two_drop($r);
1005: }
1006: }
1007: # Phase three
1008: if ($ENV{'form.phase'} eq 'three') {
1009: if ($ENV{'form.datatoken'}) {
1010: &upfile_drop_add($r);
1011: }
1012: }
1013: # Phase four
1014: if ($ENV{'form.phase'} eq 'four') {
1015: &drop_student_list($r);
1016: }
1017: # Phase five
1018: if ($ENV{'form.phase'} eq 'five') {
1019: &enroll_single_student($r);
1020: }
1021: # End
1022: $r->print('</form></body></html>');
1023: } else {
1024: # Not in a course, or not allowed to modify parms
1025: $ENV{'user.error.msg'}=
1026: "/adm/dropadd:cst:0:0:Cannot drop or add students";
1027: return HTTP_NOT_ACCEPTABLE;
1028: }
1029: return OK;
1030: }
1031:
1032: 1;
1033: __END__
1034:
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