1: # The LearningOnline Network with CAPA
2: # Handler to drop and add students in courses
3: #
4: # $Id: londropadd.pm,v 1.27 2002/04/17 13:55:35 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)=@_;
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 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
88: # Go through the roles looking for enrollment in this course
89: foreach my $course (keys(%roles)) {
90: my $value = $roles{$course};
91: if ($course=~/^$courseid(?:\/)*(\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,$unam,'','','','','','','',$section,time);
101: }
102: }
103: }
104: }
105: }
106:
107: # ============================================================== Menu Phase One
108: sub menu_phase_one {
109: my $r=shift;
110: my $upfile_select=&Apache::loncommon::upfile_select_html();
111: $r->print(<<ENDUPFORM);
112: <input type=hidden name=phase value=two>
113: <hr>
114: <h3>Upload a courselist</h3>
115: $upfile_select
116: <p><input type=submit name=fileupload value="Upload Courselist">
117: <hr>
118: <h3>Enroll a single student</h3>
119: <p><input type=submit name=enroll value="Enroll Student">
120: <hr>
121: <h3>Drop students</h3>
122: <p><input type=submit name=drop value="Selection List">
123: ENDUPFORM
124: }
125:
126: sub phase_two_header {
127: my ($r,$datatoken,$distotal,$krbdefdom)=@_;
128: my $javascript;
129: if ($ENV{'form.upfile_associate'} eq 'reverse') {
130: $javascript=&phase_two_javascript_reverse_associate();
131: } else {
132: $javascript=&phase_two_javascript_forward_associate();
133: }
134: my $javascript_validations=&javascript_validations($krbdefdom);
135: $r->print(<<ENDPICK);
136: <hr>
137: <h3>Identify fields</h3>
138: Total number of records found in file: $distotal <hr />
139: Enter as many fields as you can. The system will inform you and bring you back
140: to this page if the data selected is insufficient to run your class.<hr />
141: <input type="submit" name="associate" value="Reverse Association" />
142: <input type="hidden" name="phase" value="three" />
143: <input type="hidden" name="datatoken" value="$datatoken" />
144: <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
145: <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
146: <input type="hidden" name="upfile_associate"
147: value="$ENV{'form.upfile_associate'}" />
148: <hr />
149: <script>
150: $javascript
151: $javascript_validations
152: </script>
153: ENDPICK
154: }
155:
156: sub javascript_validations {
157: my ($krbdefdom)=@_;
158: return (<<ENDPICK);
159: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec) {
160: var foundatype=0;
161: var message='';
162: if (founduname==0) {
163: alert('You need to specify at least the username field');
164: return;
165: }
166: if (vf.login[0].checked) {
167: foundatype=1;
168: if (vf.krbdom.value=='') {
169: alert('You need to specify the Kerberos domain');
170: return;
171: }
172: }
173: if (vf.login[1].checked) {
174: foundatype=1;
175: if ((vf.intpwd.value=='') && (foundpwd==0)) {
176: alert('You need to specify the initial password');
177: return;
178: }
179: }
180: if (vf.login[2].checked) {
181: foundatype=1;
182: //An argument is not required
183: }
184: if (foundatype==0) {
185: alert('You need to set the login type');
186: return;
187: }
188: if (foundname==0) { message='No name fields specified. '; }
189: if (foundid==0) { message+='No ID or student number field specified. '; }
190: if (foundsec==0) { message+='No section or group field specified. '; }
191: if (vf.startdate.value=='') {
192: message+='No starting date set. ';
193: }
194: if (vf.enddate.value=='') {
195: message+='No ending date set. ';
196: }
197: if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
198: if (Math.round(vf.enddate.value)<Math.round(vf.startdate.value)) {
199: alert('Ending date is before starting date');
200: return;
201: }
202: }
203: if (message!='') {
204: message+='Continue enrollment?';
205: if (confirm(message)) {
206: pclose();
207: vf.submit();
208: }
209: } else {
210: pclose();
211: vf.submit();
212: }
213: }
214:
215: function setkrb(vf) {
216: if (vf.krbdom.value!='') {
217: clearpwd(vf);
218: vf.login[0].checked=true;
219: vf.krbdom.value=vf.krbdom.value.toUpperCase();
220: vf.intpwd.value='';
221: vf.locarg.value='';
222: }
223: }
224:
225: function setint(vf) {
226: if (vf.intpwd.value!='') {
227: clearpwd(vf);
228: vf.login[1].checked=true;
229: vf.krbdom.value='';
230: vf.locarg.value='';
231: }
232: }
233:
234: function setloc(vf) {
235: if (vf.locarg.value!='') {
236: vf.login[2].checked=true;
237: vf.krbdom.value='';
238: vf.intpwd.value='';
239: }
240: }
241:
242: function clickkrb(vf) {
243: vf.krbdom.value='$krbdefdom';
244: clearpwd(vf);
245: vf.intpwd.value='';
246: vf.locarg.value='';
247: }
248:
249: function clickint(vf) {
250: vf.krbdom.value='';
251: vf.locarg.value='';
252: }
253:
254: function clickloc(vf) {
255: vf.krbdom.value='';
256: vf.intpwd.value='';
257: }
258:
259: function pclose() {
260: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
261: "height=350,width=350,scrollbars=no,menubar=no");
262: parmwin.close();
263: }
264:
265: function pjump(type,dis,value,marker,ret,call) {
266: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
267: +"&value="+escape(value)+"&marker="+escape(marker)
268: +"&return="+escape(ret)
269: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
270: "height=350,width=350,scrollbars=no,menubar=no");
271:
272: }
273:
274: function dateset() {
275: if (document.studentform.pres_marker.value=='end') {
276: document.studentform.enddate.value=
277: document.studentform.pres_value.value;
278: }
279: if (document.studentform.pres_marker.value=='start') {
280: document.studentform.startdate.value=
281: document.studentform.pres_value.value;
282: }
283: pclose();
284: }
285:
286: ENDPICK
287: }
288:
289: sub phase_two_javascript_forward_associate {
290: return(<<ENDPICK);
291: function verify(vf) {
292: var founduname=0;
293: var foundpwd=0;
294: var foundname=0;
295: var foundid=0;
296: var foundsec=0;
297: var tw;
298: for (i=0;i<=vf.nfields.value;i++) {
299: tw=eval('vf.f'+i+'.selectedIndex');
300: if (tw==1) { founduname=1; }
301: if ((tw>=2) && (tw<=6)) { foundname=1; }
302: if (tw==7) { foundid=1; }
303: if (tw==8) { foundsec=1; }
304: if (tw==9) { foundpwd=1; }
305: }
306: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
307: }
308:
309: function flip(vf,tf) {
310: var nw=eval('vf.f'+tf+'.selectedIndex');
311: var i;
312: for (i=0;i<=vf.nfields.value;i++) {
313: if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
314: eval('vf.f'+i+'.selectedIndex=0;')
315: }
316: }
317: if (tf==1 && nw!=0) {
318: for (i=2;i<=5;i++) {
319: eval('vf.f'+i+'.selectedIndex=0;')
320: }
321: }
322: if (nw==2) {
323: for (i=0;i<=vf.nfields.value;i++) {
324: if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
325: (eval('vf.f'+i+'.selectedIndex')<=6)) {
326: eval('vf.f'+i+'.selectedIndex=0;')
327: }
328: }
329: }
330: if ((nw>=3) && (nw<=6)) {
331: for (i=0;i<=vf.nfields.value;i++) {
332: if (eval('vf.f'+i+'.selectedIndex')==2) {
333: eval('vf.f'+i+'.selectedIndex=0;')
334: }
335: }
336: }
337: if (nw==9) {
338: vf.login[1].checked=true;
339: vf.intpwd.value='';
340: vf.krbdom.value='';
341: vf.locarg.value='';
342: }
343: }
344:
345: function clearpwd(vf) {
346: var i;
347: for (i=0;i<=vf.nfields.value;i++) {
348: if (eval('vf.f'+i+'.selectedIndex')==9) {
349: eval('vf.f'+i+'.selectedIndex=0;')
350: }
351: }
352: }
353:
354: ENDPICK
355: }
356:
357: sub phase_two_javascript_reverse_associate {
358: return(<<ENDPICK);
359: function verify(vf) {
360: var founduname=0;
361: var foundpwd=0;
362: var foundname=0;
363: var foundid=0;
364: var foundsec=0;
365: var tw;
366: for (i=0;i<=vf.nfields.value;i++) {
367: tw=eval('vf.f'+i+'.selectedIndex');
368: if (i==0 && tw!=0) { founduname=1; }
369: if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
370: if (i==6 && tw!=0) { foundid=1; }
371: if (i==7 && tw!=0) { foundsec=1; }
372: if (i==8 && tw!=0) { foundpwd=1; }
373: }
374: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
375: }
376:
377: function flip(vf,tf) {
378: var nw=eval('vf.f'+tf+'.selectedIndex');
379: var i;
380: // picked the all one one name field, reset the other name ones to blank
381: if (tf==1 && nw!=0) {
382: for (i=2;i<=5;i++) {
383: eval('vf.f'+i+'.selectedIndex=0;')
384: }
385: }
386: //picked one of the piecewise name fields, reset the all in
387: //one field to blank
388: if ((tf>=2) && (tf<=5) && (nw!=0)) {
389: eval('vf.f1.selectedIndex=0;')
390: }
391: // intial password specified, pick internal authentication
392: if (tf==8 && nw!=0) {
393: vf.login[1].checked=true;
394: vf.intpwd.value='';
395: vf.krbdom.value='';
396: vf.locarg.value='';
397: }
398: }
399:
400: function clearpwd(vf) {
401: var i;
402: if (eval('vf.f8.selectedIndex')!=0) {
403: eval('vf.f8.selectedIndex=0;')
404: }
405: }
406: ENDPICK
407: }
408:
409: sub phase_two_end {
410: my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
411: $r->print(<<ENDPICK);
412: </table>
413: <input type=hidden name=nfields value=$i>
414: <input type=hidden name=keyfields value="$keyfields">
415: <h3>Login Type</h3>
416: <p>Note: this will not take effect if the user already exists</p>
417: <p>
418: <input type="radio" name="login" value="krb" onClick="clickkrb(this.form);" />
419: Kerberos authenticated with domain
420: <input type="text" size="10" name="krbdom" onChange="setkrb(this.form);" />
421: </p>
422: <p>
423: <input type="radio" name="login" value="int" onClick="clickint(this.form);" />
424: Internally authenticated (with initial password
425: <input type="text" size="10" name="intpwd" onChange="setint(this.form);" />)
426: </p>
427: <p>
428: <input type="radio" name="login" value="loc" onClick="clickloc(this.form);" />
429: Local Authentication with argument
430: <input type="text" size="10" name="locarg" onChange="setloc(this.form);" />
431: </p>
432: <h3>LON-CAPA Domain for Students</h3>
433: LON-CAPA domain: <input type=text size=10 value=$defdom name=lcdomain><p>
434: <h3>Starting and Ending Dates</h3>
435: <input type="hidden" value='' name="pres_value" >
436: <input type="hidden" value='' name="pres_type" >
437: <input type="hidden" value='' name="pres_marker" >
438: <input type="hidden" value='$today' name="startdate" >
439: <input type="hidden" value='$halfyear' name="enddate" >
440: <a
441: href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
442: >Set Starting Date</a><p>
443:
444: <a
445: href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
446: >Set Ending Date</a><p>
447: <h3>Full Update</h3>
448: <input type=checkbox name=fullup value=yes> Full update
449: (also print list of users not enrolled anymore)<p>
450: <h3>ID/Student Number</h3>
451: <input type=checkbox name=forceid value=yes>
452: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
453: (only do if you know what you are doing)<p>
454: <input type="button" onClick="verify(this.form)" value="Update Courselist"><br>
455: Note: for large courses, this operation might be time consuming.
456: ENDPICK
457: }
458:
459: # ======================================================= Menu Phase Two Upload
460: sub menu_phase_two_upload {
461: my $r=shift;
462:
463: my $datatoken;
464: if (!$ENV{'form.datatoken'}) {
465: $datatoken=&Apache::loncommon::upfile_store($r);
466: } else {
467: $datatoken=$ENV{'form.datatoken'};
468: &Apache::loncommon::load_tmp_file($r);
469: }
470: my @records=&Apache::loncommon::upfile_record_sep();
471: my $total=$#records;
472: my $distotal=$total+1;
473: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
474: my $krbdefdom=$1;
475: $krbdefdom=~tr/a-z/A-Z/;
476: my $today=time;
477: my $halfyear=$today+15552000;
478: my $defdom=$r->dir_config('lonDefDomain');
479: &phase_two_header($r,$datatoken,$distotal,$krbdefdom);
480: my $i;
481: my $keyfields;
482: if ($total>=0) {
483: my @d=(['username','Username'],['names','Last Name, First Names'],
484: ['fname','First Name'],['mname','Middle Names/Initials'],
485: ['lname','Last Name'],['gen','Generation'],
486: ['id','ID/Student Number'],['sec','Group/Section'],
487: ['ipwd','Initial Password']);
488: if ($ENV{'form.upfile_associate'} eq 'reverse') {
489: &Apache::loncommon::csv_print_samples($r,\@records);
490: $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
491: foreach (@d) { $keyfields.=$_->[0].','; }
492: chop($keyfields);
493: } else {
494: unshift(@d,['none','']);
495: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
496: my %sone=&Apache::loncommon::record_sep($records[0]);
497: $keyfields=join(',',sort(keys(%sone)));
498: }
499: }
500: &phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear);
501: }
502:
503: # ======================================================= Enroll single student
504: sub enroll_single_student {
505: my $r=shift;
506: $r->print('<h3>Enrolling Student</h3>');
507: if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
508: ($ENV{'form.cdomain'})&&($ENV{'form.cdomain'}!~/\W/)) {
509: my $amode='';
510: my $genpwd='';
511: if ($ENV{'form.login'} eq 'krb') {
512: $amode='krb4';
513: $genpwd=$ENV{'form.krbdom'};
514: } elsif ($ENV{'form.login'} eq 'int') {
515: $amode='internal';
516: $genpwd=$ENV{'form.intpwd'};
517: } elsif ($ENV{'form.login'} eq 'loc') {
518: $amode='localauth';
519: $genpwd=$ENV{'form.locarg'};
520: if (!$genpwd) { $genpwd=" "; }
521: }
522: if (($amode) && ($genpwd)) {
523: &modifystudent($ENV{'form.cdomain'},$ENV{'form.cuname'},
524: $ENV{'request.course.id'},$ENV{'form.csec'});
525: $r->print(&Apache::lonnet::modifystudent(
526: $ENV{'form.cdomain'},$ENV{'form.cuname'},
527: $ENV{'form.cstid'},$amode,$genpwd,
528: $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
529: $ENV{'form.clast'},$ENV{'form.cgen'},
530: $ENV{'form.csec'},$ENV{'form.enddate'},
531: $ENV{'form.startdate'},$ENV{'form.forceid'}));
532: } else {
533: $r->print('Invalid login mode or password');
534: }
535: } else {
536: $r->print('Invalid username or domain');
537: }
538: }
539:
540: # ======================================================= Menu Phase Two Enroll
541: sub menu_phase_two_enroll {
542: my $r=shift;
543: my ($krbdefdom) = $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
544: $krbdefdom=~tr/a-z/A-Z/;
545: my $today = time;
546: my $halfyear = $today+15552000;
547: my $defdom=$r->dir_config('lonDefDomain');
548: my $javascript_validations=&javascript_validations($krbdefdom);
549: $r->print(<<ENDSENROLL);
550: <script>
551: function verify(vf) {
552: var founduname=0;
553: var foundpwd=0;
554: var foundname=0;
555: var foundid=0;
556: var foundsec=0;
557: var tw;
558: if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') &&
559: (typeof(vf.cdomain.value)!="undefined") && (vf.cdomain.value!='')) {
560: founduname=1;
561: }
562: if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
563: (typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
564: foundname=1;
565: }
566: if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
567: foundsec=1;
568: }
569: if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
570: foundid=1;
571: }
572: if (founduname==0) {
573: alert('You need to specify at least the username and domain fields');
574: return;
575: }
576: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
577: }
578:
579: $javascript_validations
580:
581: function clearpwd(vf) {
582: //nothing else needs clearing
583: }
584:
585: </script>
586: <h3>Personal Data</h3>
587: First Name: <input type="text" name="cfirst" size="15"><br>
588: Middle Name: <input type="text" name="cmiddle" size="15"><br>
589: Last Name: <input type="text" name="clast" size="15"><br>
590: Generation: <input type="text" name="cgen" size="5">
591:
592: <p>ID/Student Number: <input type="text" name="cstid" size="10"></p>
593:
594: <p>Group/Section: <input type=text name=csec size=5></p>
595:
596: <h3>Login Data</h3>
597: <p>Username: <input type="text" name="cuname" size="15"></p>
598: <p>Domain: <input type="text" name="cdomain" size="10" value="$defdom"></p>
599: <p>Note: login settings below will not take effect if the user already exists
600: </p><p>
601: <input type="radio" name="login" value="krb" onClick="clickkrb(this.form);">
602: Kerberos authenticated with domain
603: <input type="text" name="krbdom" size="10" onChange="setkrb(this.form);">
604: </p><p>
605: <input type="radio" name="login" value="int" onClick="clickint(this.form);">
606: Internally authenticated (with initial password
607: <input type="text" name="intpwd" size="10" onChange="setint(this.form);">)
608: </p><p>
609: <input type="radio" name="login" value="loc" onClick="clickloc(this.form);" />
610: Local Authentication with argument
611: <input type="text" name="locarg" size="10" onChange="setloc(this.form);" />
612: </p><p>
613: <h3>Starting and Ending Dates</h3>
614: <input type="hidden" value='' name="pres_value">
615: <input type="hidden" value='' name="pres_type">
616: <input type="hidden" value='' name="pres_marker">
617: <input type="hidden" value='$today' name=startdate>
618: <input type="hidden" value='$halfyear' name=enddate>
619: </p><p>
620: <a
621: href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
622: >Set Starting Date</a>
623: </p><p>
624: <a
625: href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
626: >Set Ending Date</a>
627: </p><p>
628: <h3>ID/Student Number</h3>
629: <input type="checkbox" name="forceid" value="yes">
630: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
631: (only do if you know what you are doing)<p>
632: <input type="button" onClick="verify(this.form)" value="Enroll as student"><br>
633: <input type="hidden" name="phase" value="five">
634: </p>
635: ENDSENROLL
636: }
637:
638: # =================================================== get the current classlist
639: sub get_current_classlist {
640: my ($domain,$identifier) = @_;
641: # domain is the domain the class is being run in
642: # identifier is the internal, unique identifier for the class.
643: my %currentlist=();
644: my $now=time;
645: my %results=&Apache::lonnet::dump('classlist',$domain,$identifier);
646: my ($tmp) = keys(%results);
647: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
648: foreach my $student (keys(%results)) {
649: # Extract the start and end dates
650: my ($end,$start)=split(/\:/,$results{$student});
651: # If the class isn't over, put it in the list
652: unless (($end) && ($now>$end)) {
653: $currentlist{$student}=1;
654: }
655: }
656: return (undef,%currentlist);
657: } else {
658: return ($tmp,undef);
659: }
660: }
661:
662: # ========================================================= Menu Phase Two Drop
663: sub menu_phase_two_drop {
664: my $r=shift;
665: my $cid=$ENV{'request.course.id'};
666: my ($error,%currentlist)=&get_current_classlist($ENV{'course.'.$cid.'.domain'},
667: $ENV{'course.'.$cid.'.num'});
668: if (defined($error)) {
669: $r->print('<pre>ERROR:$error</pre>');
670: }
671: if (!defined(%currentlist)) {
672: $r->print("There are no students currently enrolled.\n");
673: } else {
674: # Print out the available choices
675: &show_drop_list($r,%currentlist);
676: }
677: }
678:
679: # =================================================== Show student list to drop
680: sub show_drop_list {
681: my ($r,%currentlist)=@_;
682: my $cid=$ENV{'request.course.id'};
683: $r->print(<<'END');
684: <input type="hidden" name="phase" value="four">
685: <table border=2>
686: <tr><th> </th><th>username</th><th>domain</th>
687: <th>ID</th><th>student name</th><th>generation</th>
688: <th>section</th></tr>
689: END
690: foreach (sort keys %currentlist) {
691: my ($sname,$sdom)=split(/\:/,$_);
692: my %reply=&Apache::lonnet::idrget($sdom,$sname);
693: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
694: my %info=&Apache::lonnet::get('environment',
695: ['firstname','middlename',
696: 'lastname','generation'],
697: $sdom, $sname);
698: my ($tmp) = keys(%info);
699: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
700: $r->print('<tr><td colspan="7"><font color="red">'.
701: 'Internal error: unable to get environment '.
702: 'for '.$sname.' in domain '.$sdom.'</font></td></tr>');
703: } else {
704: $r->print(<<"END");
705: <tr>
706: <td><input type="checkbox" name="droplist" value="$_"></td>
707: <td>$sname</td>
708: <td>$sdom</td>
709: <td>$reply{$sname}</td>
710: <td>$info{'lastname'}, $info{'firstname'} $info{'middlename'}</td>
711: <td>$info{'generation'}</td>
712: <td>$ssec</td>
713: </tr>
714: END
715: }
716: }
717: $r->print('</table><br>');
718: $r->print('<input type=submit value="Drop Students">');
719: }
720:
721: # ================================================= Drop/Add from uploaded file
722: sub upfile_drop_add {
723: my $r=shift;
724: &Apache::loncommon::load_tmp_file($r);
725: my @studentdata=&Apache::loncommon::upfile_record_sep();
726: my @keyfields = split(/\,/,$ENV{'form.keyfields'});
727: my $cid = $ENV{'request.course.id'};
728: my %fields=();
729: for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
730: if ($ENV{'form.upfile_associate'} eq 'reverse') {
731: if ($ENV{'form.f'.$i} ne 'none') {
732: $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
733: }
734: } else {
735: $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
736: }
737: }
738: #
739: my $startdate = $ENV{'form.startdate'};
740: my $enddate = $ENV{'form.enddate'};
741: if ($startdate=~/\D/) { $startdate=''; }
742: if ($enddate=~/\D/) { $enddate=''; }
743: #
744: my $domain=$ENV{'form.lcdomain'};
745: # Determine authentication mechanism
746: my $amode = '';
747: my $genpwd = '';
748: if ($ENV{'form.login'} eq 'krb') {
749: $amode='krb4';
750: $genpwd=$ENV{'form.krbdom'};
751: } elsif ($ENV{'form.login'} eq 'int') {
752: $amode='internal';
753: if ((defined($ENV{'form.intpwd'})) && ($ENV{'form.intpwd'})) {
754: $genpwd=$ENV{'form.intpwd'};
755: }
756: } elsif ($ENV{'form.login'} eq 'loc') {
757: $amode='localauth';
758: if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
759: $genpwd=$ENV{'form.locarg'};
760: }
761: }
762: unless (($domain=~/\W/) || ($amode eq '')) {
763: #######################################
764: ## Enroll Students ##
765: #######################################
766: $r->print('<h3>Enrolling Students</h3>');
767: my $count=0;
768: my $flushc=0;
769: my %student=();
770: # Get new classlist
771: foreach (@studentdata) {
772: my %entries=&Apache::loncommon::record_sep($_);
773: # Determine student name
774: unless (($entries{$fields{'username'}} eq '') ||
775: (!defined($entries{$fields{'username'}}))) {
776: my ($fname, $mname, $lname,$gen) = ('','','','');
777: if (defined($fields{'names'})) {
778: ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
779: /([^\,]+)\,\s*(\w+)\s*(.*)$/);
780: } else {
781: if (defined($fields{'fname'})) {
782: $fname=$entries{$fields{'fname'}};
783: }
784: if (defined($fields{'mname'})) {
785: $mname=$entries{$fields{'mname'}};
786: }
787: if (defined($fields{'lname'})) {
788: $lname=$entries{$fields{'lname'}};
789: }
790: if (defined($fields{'gen'})) {
791: $gen=$entries{$fields{'gen'}};
792: }
793: }
794: if ($entries{$fields{'username'}}=~/\W/) {
795: $r->print('<p><b>Unacceptable username: '.
796: $entries{$fields{'username'}}.' for user '.
797: $fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
798: } else {
799: # determine section number
800: my $sec='';
801: my $username=$entries{$fields{'username'}};
802: if (defined($fields{'sec'})) {
803: if (defined($entries{$fields{'sec'}})) {
804: $sec=$entries{$fields{'sec'}};
805: }
806: }
807: # determine student id number
808: my $id='';
809: if (defined($fields{'id'})) {
810: if (defined($entries{$fields{'id'}})) {
811: $id=$entries{$fields{'id'}};
812: }
813: $id=~tr/A-Z/a-z/;
814: }
815: # determine student password
816: my $password='';
817: if ($genpwd) {
818: $password=$genpwd;
819: } else {
820: if (defined($fields{'ipwd'})) {
821: if ($entries{$fields{'ipwd'}}) {
822: $password=$entries{$fields{'ipwd'}};
823: }
824: }
825: }
826: if ($password) {
827: &modifystudent($domain,$username,$cid,$sec);
828: my $reply=&Apache::lonnet::modifystudent
829: ($domain,$username,$id,$amode,$password,
830: $fname,$mname,$lname,$gen,$sec,$enddate,
831: $startdate,$ENV{'form.forceid'});
832: if ($reply ne 'ok') {
833: $r->print('<p><b>'.
834: 'Error enrolling '.$username.': '.
835: $reply.'</b></p>');
836: } else {
837: $count++; $flushc++;
838: $student{$username}=1;
839: $r->print('. ');
840: if ($flushc>15) {
841: $r->rflush;
842: $flushc=0;
843: }
844: }
845: } else {
846: $r->print("<p><b>No password for $username</b><p>");
847: }
848: }
849: }
850: } # end of foreach (@studentdata)
851: $r->print('<p>Processed Students: '.$count);
852: #####################################
853: # Drop students #
854: #####################################
855: if ($ENV{'form.fullup'} eq 'yes') {
856: $r->print('<h3>Dropping Students</h3>');
857: # Get current classlist
858: my ($error,%currentlist)=&get_current_classlist
859: ($ENV{'course.'.$cid.'.domain'},
860: $ENV{'course.'.$cid.'.num'});
861: if (defined($error)) {
862: $r->print('<pre>ERROR:$error</pre>');
863: }
864: if (defined(%currentlist)) {
865: # Drop the students
866: foreach (@studentdata) {
867: my %entries=&Apache::loncommon::record_sep($_);
868: unless (($entries{$fields{'username'}} eq '') ||
869: (!defined($entries{$fields{'username'}}))) {
870: delete($currentlist{$entries{$fields{'username'}}.
871: ':'.$domain});
872: }
873: }
874: # Print out list of dropped students
875: &show_drop_list($r,%currentlist);
876: } else {
877: $r->print("There are no students currently enrolled.\n");
878: }
879: }
880: } # end of unless
881: }
882:
883: # ================================================================== Phase four
884: sub drop_student_list {
885: my $r=shift;
886: my $count=0;
887: foreach (@{$ENV{'form.droplist'}}) {
888: my ($uname,$udom)=split(/\:/,$_);
889: &modifystudent($udom,$uname,$ENV{'request.course.id'});
890: $r->print('Dropped '.$uname.' at '.$udom.'<br>');
891: $count++;
892: }
893: $r->print('<p><b>Dropped '.$count.' student(s).</b>');
894: $r->print('<p>Re-enrollment will re-activate data.');
895: }
896:
897: # ================================================================ Main Handler
898: sub handler {
899: my $r=shift;
900: $Apache::lonxml::debug=1;
901: if ($r->header_only) {
902: $r->content_type('text/html');
903: $r->send_http_header;
904: return OK;
905: }
906: # Needs to be in a course
907: if (($ENV{'request.course.fn'}) &&
908: (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) {
909: # Start page
910: $r->content_type('text/html');
911: $r->send_http_header;
912: $r->print(&header());
913: # Phase one, initial screen
914: unless ($ENV{'form.phase'}) {
915: &menu_phase_one($r);
916: }
917: # Phase two
918: if ($ENV{'form.associate'} eq 'Reverse Association') {
919: $ENV{'form.phase'} = 'two';
920: if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
921: $ENV{'form.upfile_associate'} = 'reverse';
922: } else {
923: $ENV{'form.upfile_associate'} = 'forward';
924: }
925: }
926: if ($ENV{'form.phase'} eq 'two') {
927: if ($ENV{'form.fileupload'}) {
928: &menu_phase_two_upload($r);
929: } elsif ($ENV{'form.enroll'}) {
930: &menu_phase_two_enroll($r);
931: } elsif ($ENV{'form.drop'}) {
932: &menu_phase_two_drop($r);
933: }
934: }
935: # Phase three
936: if ($ENV{'form.phase'} eq 'three') {
937: if ($ENV{'form.datatoken'}) {
938: &upfile_drop_add($r);
939: }
940: }
941: # Phase four
942: if ($ENV{'form.phase'} eq 'four') {
943: &drop_student_list($r);
944: }
945: # Phase five
946: if ($ENV{'form.phase'} eq 'five') {
947: &enroll_single_student($r);
948: }
949: # End
950: $r->print('</form></body></html>');
951: } else {
952: # Not in a course, or not allowed to modify parms
953: $ENV{'user.error.msg'}=
954: "/adm/dropadd:cst:0:0:Cannot drop or add students";
955: return HTTP_NOT_ACCEPTABLE;
956: }
957: return OK;
958: }
959:
960: 1;
961: __END__
962:
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