1: # The LearningOnline Network with CAPA
2: # Handler to drop and add students in courses
3: #
4: # $Id: londropadd.pm,v 1.28 2002/04/22 15:26:46 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 type="text/javascript" language="Javascript">
150: $javascript
151: $javascript_validations
152: </script>
153: ENDPICK
154: }
155:
156: sub javascript_validations {
157: my ($krbdefdom)=@_;
158: my %param = ( formname => 'studentform',
159: kerb_def_dom => $krbdefdom );
160: my $authheader = &Apache::loncommon::authform_header(%param);
161: return (<<ENDPICK);
162: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec) {
163: var foundatype=0;
164: var message='';
165: if (founduname==0) {
166: alert('You need to specify the username field');
167: return;
168: }
169: if (vf.login.value == null) {
170: // They did not check any of the login radiobuttons.
171: alert('You must choose an authentication type');
172: return;
173: }
174: foundatype=1;
175: if (vf.login.argfield.value == '') {
176: var alertmsg = '';
177: switch (vf.login.value) {
178: case 'krb':
179: alertmsg = 'You need to specify the Kerberos domain';
180: break;
181: case 'loc':
182: case 'fsys':
183: alertmsg = 'You need to specify the initial password';
184: break;
185: case 'fsys':
186: alertmsg = '';
187: break;
188: default:
189: alertmsg = '';
190: }
191: if (alertmsg != '') {
192: alert(alertmsg);
193: return;
194: }
195: }
196:
197: if (foundname==0) { message='No name fields specified. '; }
198: if (foundid==0) { message+='No ID or student number field specified. '; }
199: if (foundsec==0) { message+='No section or group field specified. '; }
200: if (vf.startdate.value=='') {
201: message+='No starting date set. ';
202: }
203: if (vf.enddate.value=='') {
204: message+='No ending date set. ';
205: }
206: if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
207: if (Math.round(vf.enddate.value)<Math.round(vf.startdate.value)) {
208: alert('Ending date is before starting date');
209: return;
210: }
211: }
212: if (message!='') {
213: message+='Continue enrollment?';
214: if (confirm(message)) {
215: pclose();
216: vf.submit();
217: }
218: } else {
219: pclose();
220: vf.submit();
221: }
222: }
223:
224:
225: function pclose() {
226: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
227: "height=350,width=350,scrollbars=no,menubar=no");
228: parmwin.close();
229: }
230:
231: function pjump(type,dis,value,marker,ret,call) {
232: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
233: +"&value="+escape(value)+"&marker="+escape(marker)
234: +"&return="+escape(ret)
235: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
236: "height=350,width=350,scrollbars=no,menubar=no");
237:
238: }
239:
240: function dateset() {
241: if (document.studentform.pres_marker.value=='end') {
242: document.studentform.enddate.value=
243: document.studentform.pres_value.value;
244: }
245: if (document.studentform.pres_marker.value=='start') {
246: document.studentform.startdate.value=
247: document.studentform.pres_value.value;
248: }
249: pclose();
250: }
251:
252: $authheader
253: ENDPICK
254:
255: }
256:
257: sub phase_two_javascript_forward_associate {
258: return(<<ENDPICK);
259: function verify(vf) {
260: var founduname=0;
261: var foundpwd=0;
262: var foundname=0;
263: var foundid=0;
264: var foundsec=0;
265: var tw;
266: for (i=0;i<=vf.nfields.value;i++) {
267: tw=eval('vf.f'+i+'.selectedIndex');
268: if (tw==1) { founduname=1; }
269: if ((tw>=2) && (tw<=6)) { foundname=1; }
270: if (tw==7) { foundid=1; }
271: if (tw==8) { foundsec=1; }
272: if (tw==9) { foundpwd=1; }
273: }
274: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
275: }
276:
277: function flip(vf,tf) {
278: var nw=eval('vf.f'+tf+'.selectedIndex');
279: var i;
280: for (i=0;i<=vf.nfields.value;i++) {
281: if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
282: eval('vf.f'+i+'.selectedIndex=0;')
283: }
284: }
285: if (tf==1 && nw!=0) {
286: for (i=2;i<=5;i++) {
287: eval('vf.f'+i+'.selectedIndex=0;')
288: }
289: }
290: if (nw==2) {
291: for (i=0;i<=vf.nfields.value;i++) {
292: if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
293: (eval('vf.f'+i+'.selectedIndex')<=6)) {
294: eval('vf.f'+i+'.selectedIndex=0;')
295: }
296: }
297: }
298: if ((nw>=3) && (nw<=6)) {
299: for (i=0;i<=vf.nfields.value;i++) {
300: if (eval('vf.f'+i+'.selectedIndex')==2) {
301: eval('vf.f'+i+'.selectedIndex=0;')
302: }
303: }
304: }
305: if (nw==9) {
306: changed_radio('int',document.studentform);
307: set_auth_radio_buttons('int',document.studentform);
308: vf.intarg.value='';
309: vf.krbarg.value='';
310: vf.locarg.value='';
311: }
312: }
313:
314: function clearpwd(vf) {
315: var i;
316: for (i=0;i<=vf.nfields.value;i++) {
317: if (eval('vf.f'+i+'.selectedIndex')==9) {
318: eval('vf.f'+i+'.selectedIndex=0;')
319: }
320: }
321: }
322:
323: ENDPICK
324: }
325:
326: sub phase_two_javascript_reverse_associate {
327: return(<<ENDPICK);
328: function verify(vf) {
329: var founduname=0;
330: var foundpwd=0;
331: var foundname=0;
332: var foundid=0;
333: var foundsec=0;
334: var tw;
335: for (i=0;i<=vf.nfields.value;i++) {
336: tw=eval('vf.f'+i+'.selectedIndex');
337: if (i==0 && tw!=0) { founduname=1; }
338: if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
339: if (i==6 && tw!=0) { foundid=1; }
340: if (i==7 && tw!=0) { foundsec=1; }
341: if (i==8 && tw!=0) { foundpwd=1; }
342: }
343: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
344: }
345:
346: function flip(vf,tf) {
347: var nw=eval('vf.f'+tf+'.selectedIndex');
348: var i;
349: // picked the all one one name field, reset the other name ones to blank
350: if (tf==1 && nw!=0) {
351: for (i=2;i<=5;i++) {
352: eval('vf.f'+i+'.selectedIndex=0;')
353: }
354: }
355: //picked one of the piecewise name fields, reset the all in
356: //one field to blank
357: if ((tf>=2) && (tf<=5) && (nw!=0)) {
358: eval('vf.f1.selectedIndex=0;')
359: }
360: // intial password specified, pick internal authentication
361: if (tf==8 && nw!=0) {
362: changed_radio('int',document.studentform);
363: set_auth_radio_buttons('int',document.studentform);
364: vf.krbarg.value='';
365: vf.intarg.value='';
366: vf.locarg.value='';
367: }
368: }
369:
370: function clearpwd(vf) {
371: var i;
372: if (eval('vf.f8.selectedIndex')!=0) {
373: eval('vf.f8.selectedIndex=0;')
374: }
375: }
376: ENDPICK
377: }
378:
379: sub phase_two_end {
380: my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
381: my %param = ( formname => 'document.studentform');
382: my $krbform = &Apache::loncommon::authform_kerberos(%param);
383: my $intform = &Apache::loncommon::authform_internal(%param);
384: my $locform = &Apache::loncommon::authform_local(%param);
385: $r->print(<<ENDPICK);
386: </table>
387: <input type=hidden name=nfields value=$i>
388: <input type=hidden name=keyfields value="$keyfields">
389: <h3>Login Type</h3>
390: <p>Note: this will not take effect if the user already exists</p>
391: <p>
392: $krbform
393: </p>
394: <p>
395: $intform
396: </p>
397: <p>
398: $locform
399: </p>
400: <h3>LON-CAPA Domain for Students</h3>
401: LON-CAPA domain: <input type=text size=10 value=$defdom name=lcdomain><p>
402: <h3>Starting and Ending Dates</h3>
403: <input type="hidden" value='' name="pres_value" >
404: <input type="hidden" value='' name="pres_type" >
405: <input type="hidden" value='' name="pres_marker" >
406: <input type="hidden" value='$today' name="startdate" >
407: <input type="hidden" value='$halfyear' name="enddate" >
408: <a
409: href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
410: >Set Starting Date</a><p>
411:
412: <a
413: href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
414: >Set Ending Date</a><p>
415: <h3>Full Update</h3>
416: <input type=checkbox name=fullup value=yes> Full update
417: (also print list of users not enrolled anymore)<p>
418: <h3>ID/Student Number</h3>
419: <input type=checkbox name=forceid value=yes>
420: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
421: (only do if you know what you are doing)<p>
422: <input type="button" onClick="verify(this.form)" value="Update Courselist"><br>
423: Note: for large courses, this operation might be time consuming.
424: ENDPICK
425: }
426:
427: # ======================================================= Menu Phase Two Upload
428: sub menu_phase_two_upload {
429: my $r=shift;
430:
431: my $datatoken;
432: if (!$ENV{'form.datatoken'}) {
433: $datatoken=&Apache::loncommon::upfile_store($r);
434: } else {
435: $datatoken=$ENV{'form.datatoken'};
436: &Apache::loncommon::load_tmp_file($r);
437: }
438: my @records=&Apache::loncommon::upfile_record_sep();
439: my $total=$#records;
440: my $distotal=$total+1;
441: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
442: my $krbdefdom=$1;
443: $krbdefdom=~tr/a-z/A-Z/;
444: my $today=time;
445: my $halfyear=$today+15552000;
446: my $defdom=$r->dir_config('lonDefDomain');
447: &phase_two_header($r,$datatoken,$distotal,$krbdefdom);
448: my $i;
449: my $keyfields;
450: if ($total>=0) {
451: my @d=(['username','Username'],['names','Last Name, First Names'],
452: ['fname','First Name'],['mname','Middle Names/Initials'],
453: ['lname','Last Name'],['gen','Generation'],
454: ['id','ID/Student Number'],['sec','Group/Section'],
455: ['ipwd','Initial Password']);
456: if ($ENV{'form.upfile_associate'} eq 'reverse') {
457: &Apache::loncommon::csv_print_samples($r,\@records);
458: $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
459: foreach (@d) { $keyfields.=$_->[0].','; }
460: chop($keyfields);
461: } else {
462: unshift(@d,['none','']);
463: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
464: my %sone=&Apache::loncommon::record_sep($records[0]);
465: $keyfields=join(',',sort(keys(%sone)));
466: }
467: }
468: &phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear);
469: }
470:
471: # ======================================================= Enroll single student
472: sub enroll_single_student {
473: my $r=shift;
474: $r->print('<h3>Enrolling Student</h3>');
475: if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
476: ($ENV{'form.cdomain'})&&($ENV{'form.cdomain'}!~/\W/)) {
477: my $amode='';
478: my $genpwd='';
479: if ($ENV{'form.login'} eq 'krb') {
480: $amode='krb4';
481: $genpwd=$ENV{'form.krbarg'};
482: } elsif ($ENV{'form.login'} eq 'int') {
483: $amode='internal';
484: $genpwd=$ENV{'form.intarg'};
485: } elsif ($ENV{'form.login'} eq 'loc') {
486: $amode='localauth';
487: $genpwd=$ENV{'form.locarg'};
488: if (!$genpwd) { $genpwd=" "; }
489: }
490: if (($amode) && ($genpwd)) {
491: &modifystudent($ENV{'form.cdomain'},$ENV{'form.cuname'},
492: $ENV{'request.course.id'},$ENV{'form.csec'});
493: $r->print(&Apache::lonnet::modifystudent(
494: $ENV{'form.cdomain'},$ENV{'form.cuname'},
495: $ENV{'form.cstid'},$amode,$genpwd,
496: $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
497: $ENV{'form.clast'},$ENV{'form.cgen'},
498: $ENV{'form.csec'},$ENV{'form.enddate'},
499: $ENV{'form.startdate'},$ENV{'form.forceid'}));
500: } else {
501: $r->print('Invalid login mode or password');
502: }
503: } else {
504: $r->print('Invalid username or domain');
505: }
506: }
507:
508: # ======================================================= Menu Phase Two Enroll
509: sub menu_phase_two_enroll {
510: my $r=shift;
511: my ($krbdefdom) = $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
512: $krbdefdom=~tr/a-z/A-Z/;
513: my $today = time;
514: my $halfyear = $today+15552000;
515: my $defdom=$r->dir_config('lonDefDomain');
516: my $javascript_validations=&javascript_validations($krbdefdom);
517: # Set up authentication forms
518: my %param = ( formname => 'document.studentform');
519: my $krbform = &Apache::loncommon::authform_kerberos(%param);
520: my $intform = &Apache::loncommon::authform_internal(%param);
521: my $locform = &Apache::loncommon::authform_local(%param);
522: # Print it all out
523: $r->print(<<ENDSENROLL);
524: <script type="text/javascript" language="Javascript">
525: function verify(vf) {
526: var founduname=0;
527: var foundpwd=0;
528: var foundname=0;
529: var foundid=0;
530: var foundsec=0;
531: var tw;
532: if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') &&
533: (typeof(vf.cdomain.value)!="undefined") && (vf.cdomain.value!='')) {
534: founduname=1;
535: }
536: if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
537: (typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
538: foundname=1;
539: }
540: if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
541: foundsec=1;
542: }
543: if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
544: foundid=1;
545: }
546: if (founduname==0) {
547: alert('You need to specify at least the username and domain fields');
548: return;
549: }
550: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
551: }
552:
553: $javascript_validations
554:
555: function clearpwd(vf) {
556: //nothing else needs clearing
557: }
558:
559: </script>
560: <h3>Personal Data</h3>
561: First Name: <input type="text" name="cfirst" size="15"><br>
562: Middle Name: <input type="text" name="cmiddle" size="15"><br>
563: Last Name: <input type="text" name="clast" size="15"><br>
564: Generation: <input type="text" name="cgen" size="5">
565:
566: <p>ID/Student Number: <input type="text" name="cstid" size="10"></p>
567:
568: <p>Group/Section: <input type=text name=csec size=5></p>
569:
570: <h3>Login Data</h3>
571: <p>Username: <input type="text" name="cuname" size="15"></p>
572: <p>Domain: <input type="text" name="cdomain" size="10" value="$defdom"></p>
573: <p>Note: login settings below will not take effect if the user already exists
574: </p><p>
575: $krbform
576: </p><p>
577: $intform
578: </p><p>
579: $locform
580: </p><p>
581: <h3>Starting and Ending Dates</h3>
582: <input type="hidden" value='' name="pres_value">
583: <input type="hidden" value='' name="pres_type">
584: <input type="hidden" value='' name="pres_marker">
585: <input type="hidden" value='$today' name=startdate>
586: <input type="hidden" value='$halfyear' name=enddate>
587: </p><p>
588: <a
589: href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
590: >Set Starting Date</a>
591: </p><p>
592: <a
593: href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
594: >Set Ending Date</a>
595: </p><p>
596: <h3>ID/Student Number</h3>
597: <input type="checkbox" name="forceid" value="yes">
598: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
599: (only do if you know what you are doing)<p>
600: <input type="button" onClick="verify(this.form)" value="Enroll as student"><br>
601: <input type="hidden" name="phase" value="five">
602: </p>
603: ENDSENROLL
604: }
605:
606: # =================================================== get the current classlist
607: sub get_current_classlist {
608: my ($domain,$identifier) = @_;
609: # domain is the domain the class is being run in
610: # identifier is the internal, unique identifier for the class.
611: my %currentlist=();
612: my $now=time;
613: my %results=&Apache::lonnet::dump('classlist',$domain,$identifier);
614: my ($tmp) = keys(%results);
615: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
616: foreach my $student (keys(%results)) {
617: # Extract the start and end dates
618: my ($end,$start)=split(/\:/,$results{$student});
619: # If the class isn't over, put it in the list
620: unless (($end) && ($now>$end)) {
621: $currentlist{$student}=1;
622: }
623: }
624: return (undef,%currentlist);
625: } else {
626: return ($tmp,undef);
627: }
628: }
629:
630: # ========================================================= Menu Phase Two Drop
631: sub menu_phase_two_drop {
632: my $r=shift;
633: my $cid=$ENV{'request.course.id'};
634: my ($error,%currentlist)=&get_current_classlist($ENV{'course.'.$cid.'.domain'},
635: $ENV{'course.'.$cid.'.num'});
636: if (defined($error)) {
637: $r->print('<pre>ERROR:$error</pre>');
638: }
639: if (!defined(%currentlist)) {
640: $r->print("There are no students currently enrolled.\n");
641: } else {
642: # Print out the available choices
643: &show_drop_list($r,%currentlist);
644: }
645: }
646:
647: # =================================================== Show student list to drop
648: sub show_drop_list {
649: my ($r,%currentlist)=@_;
650: my $cid=$ENV{'request.course.id'};
651: $r->print(<<'END');
652: <input type="hidden" name="phase" value="four">
653: <table border=2>
654: <tr><th> </th><th>username</th><th>domain</th>
655: <th>ID</th><th>student name</th><th>generation</th>
656: <th>section</th></tr>
657: END
658: foreach (sort keys %currentlist) {
659: my ($sname,$sdom)=split(/\:/,$_);
660: my %reply=&Apache::lonnet::idrget($sdom,$sname);
661: my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
662: my %info=&Apache::lonnet::get('environment',
663: ['firstname','middlename',
664: 'lastname','generation'],
665: $sdom, $sname);
666: my ($tmp) = keys(%info);
667: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
668: $r->print('<tr><td colspan="7"><font color="red">'.
669: 'Internal error: unable to get environment '.
670: 'for '.$sname.' in domain '.$sdom.'</font></td></tr>');
671: } else {
672: $r->print(<<"END");
673: <tr>
674: <td><input type="checkbox" name="droplist" value="$_"></td>
675: <td>$sname</td>
676: <td>$sdom</td>
677: <td>$reply{$sname}</td>
678: <td>$info{'lastname'}, $info{'firstname'} $info{'middlename'}</td>
679: <td>$info{'generation'}</td>
680: <td>$ssec</td>
681: </tr>
682: END
683: }
684: }
685: $r->print('</table><br>');
686: $r->print('<input type=submit value="Drop Students">');
687: }
688:
689: # ================================================= Drop/Add from uploaded file
690: sub upfile_drop_add {
691: my $r=shift;
692: &Apache::loncommon::load_tmp_file($r);
693: my @studentdata=&Apache::loncommon::upfile_record_sep();
694: my @keyfields = split(/\,/,$ENV{'form.keyfields'});
695: my $cid = $ENV{'request.course.id'};
696: my %fields=();
697: for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
698: if ($ENV{'form.upfile_associate'} eq 'reverse') {
699: if ($ENV{'form.f'.$i} ne 'none') {
700: $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
701: }
702: } else {
703: $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
704: }
705: }
706: #
707: my $startdate = $ENV{'form.startdate'};
708: my $enddate = $ENV{'form.enddate'};
709: if ($startdate=~/\D/) { $startdate=''; }
710: if ($enddate=~/\D/) { $enddate=''; }
711: #
712: my $domain=$ENV{'form.lcdomain'};
713: # Determine authentication mechanism
714: my $amode = '';
715: my $genpwd = '';
716: if ($ENV{'form.login'} eq 'krb') {
717: $amode='krb4';
718: $genpwd=$ENV{'form.krbarg'};
719: } elsif ($ENV{'form.login'} eq 'int') {
720: $amode='internal';
721: if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
722: $genpwd=$ENV{'form.intarg'};
723: }
724: } elsif ($ENV{'form.login'} eq 'loc') {
725: $amode='localauth';
726: if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
727: $genpwd=$ENV{'form.locarg'};
728: }
729: }
730: unless (($domain=~/\W/) || ($amode eq '')) {
731: #######################################
732: ## Enroll Students ##
733: #######################################
734: $r->print('<h3>Enrolling Students</h3>');
735: my $count=0;
736: my $flushc=0;
737: my %student=();
738: # Get new classlist
739: foreach (@studentdata) {
740: my %entries=&Apache::loncommon::record_sep($_);
741: # Determine student name
742: unless (($entries{$fields{'username'}} eq '') ||
743: (!defined($entries{$fields{'username'}}))) {
744: my ($fname, $mname, $lname,$gen) = ('','','','');
745: if (defined($fields{'names'})) {
746: ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
747: /([^\,]+)\,\s*(\w+)\s*(.*)$/);
748: } else {
749: if (defined($fields{'fname'})) {
750: $fname=$entries{$fields{'fname'}};
751: }
752: if (defined($fields{'mname'})) {
753: $mname=$entries{$fields{'mname'}};
754: }
755: if (defined($fields{'lname'})) {
756: $lname=$entries{$fields{'lname'}};
757: }
758: if (defined($fields{'gen'})) {
759: $gen=$entries{$fields{'gen'}};
760: }
761: }
762: if ($entries{$fields{'username'}}=~/\W/) {
763: $r->print('<p><b>Unacceptable username: '.
764: $entries{$fields{'username'}}.' for user '.
765: $fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
766: } else {
767: # determine section number
768: my $sec='';
769: my $username=$entries{$fields{'username'}};
770: if (defined($fields{'sec'})) {
771: if (defined($entries{$fields{'sec'}})) {
772: $sec=$entries{$fields{'sec'}};
773: }
774: }
775: # determine student id number
776: my $id='';
777: if (defined($fields{'id'})) {
778: if (defined($entries{$fields{'id'}})) {
779: $id=$entries{$fields{'id'}};
780: }
781: $id=~tr/A-Z/a-z/;
782: }
783: # determine student password
784: my $password='';
785: if ($genpwd) {
786: $password=$genpwd;
787: } else {
788: if (defined($fields{'ipwd'})) {
789: if ($entries{$fields{'ipwd'}}) {
790: $password=$entries{$fields{'ipwd'}};
791: }
792: }
793: }
794: if ($password) {
795: &modifystudent($domain,$username,$cid,$sec);
796: my $reply=&Apache::lonnet::modifystudent
797: ($domain,$username,$id,$amode,$password,
798: $fname,$mname,$lname,$gen,$sec,$enddate,
799: $startdate,$ENV{'form.forceid'});
800: if ($reply ne 'ok') {
801: $r->print('<p><b>'.
802: 'Error enrolling '.$username.': '.
803: $reply.'</b></p>');
804: } else {
805: $count++; $flushc++;
806: $student{$username}=1;
807: $r->print('. ');
808: if ($flushc>15) {
809: $r->rflush;
810: $flushc=0;
811: }
812: }
813: } else {
814: $r->print("<p><b>No password for $username</b><p>");
815: }
816: }
817: }
818: } # end of foreach (@studentdata)
819: $r->print('<p>Processed Students: '.$count);
820: #####################################
821: # Drop students #
822: #####################################
823: if ($ENV{'form.fullup'} eq 'yes') {
824: $r->print('<h3>Dropping Students</h3>');
825: # Get current classlist
826: my ($error,%currentlist)=&get_current_classlist
827: ($ENV{'course.'.$cid.'.domain'},
828: $ENV{'course.'.$cid.'.num'});
829: if (defined($error)) {
830: $r->print('<pre>ERROR:$error</pre>');
831: }
832: if (defined(%currentlist)) {
833: # Drop the students
834: foreach (@studentdata) {
835: my %entries=&Apache::loncommon::record_sep($_);
836: unless (($entries{$fields{'username'}} eq '') ||
837: (!defined($entries{$fields{'username'}}))) {
838: delete($currentlist{$entries{$fields{'username'}}.
839: ':'.$domain});
840: }
841: }
842: # Print out list of dropped students
843: &show_drop_list($r,%currentlist);
844: } else {
845: $r->print("There are no students currently enrolled.\n");
846: }
847: }
848: } # end of unless
849: }
850:
851: # ================================================================== Phase four
852: sub drop_student_list {
853: my $r=shift;
854: my $count=0;
855: foreach (@{$ENV{'form.droplist'}}) {
856: my ($uname,$udom)=split(/\:/,$_);
857: &modifystudent($udom,$uname,$ENV{'request.course.id'});
858: $r->print('Dropped '.$uname.' at '.$udom.'<br>');
859: $count++;
860: }
861: $r->print('<p><b>Dropped '.$count.' student(s).</b>');
862: $r->print('<p>Re-enrollment will re-activate data.');
863: }
864:
865: # ================================================================ Main Handler
866: sub handler {
867: my $r=shift;
868: $Apache::lonxml::debug=1;
869: if ($r->header_only) {
870: $r->content_type('text/html');
871: $r->send_http_header;
872: return OK;
873: }
874: # Needs to be in a course
875: if (($ENV{'request.course.fn'}) &&
876: (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) {
877: # Start page
878: $r->content_type('text/html');
879: $r->send_http_header;
880: $r->print(&header());
881: # Phase one, initial screen
882: unless ($ENV{'form.phase'}) {
883: &menu_phase_one($r);
884: }
885: # Phase two
886: if ($ENV{'form.associate'} eq 'Reverse Association') {
887: $ENV{'form.phase'} = 'two';
888: if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
889: $ENV{'form.upfile_associate'} = 'reverse';
890: } else {
891: $ENV{'form.upfile_associate'} = 'forward';
892: }
893: }
894: if ($ENV{'form.phase'} eq 'two') {
895: if ($ENV{'form.fileupload'}) {
896: &menu_phase_two_upload($r);
897: } elsif ($ENV{'form.enroll'}) {
898: &menu_phase_two_enroll($r);
899: } elsif ($ENV{'form.drop'}) {
900: &menu_phase_two_drop($r);
901: }
902: }
903: # Phase three
904: if ($ENV{'form.phase'} eq 'three') {
905: if ($ENV{'form.datatoken'}) {
906: &upfile_drop_add($r);
907: }
908: }
909: # Phase four
910: if ($ENV{'form.phase'} eq 'four') {
911: &drop_student_list($r);
912: }
913: # Phase five
914: if ($ENV{'form.phase'} eq 'five') {
915: &enroll_single_student($r);
916: }
917: # End
918: $r->print('</form></body></html>');
919: } else {
920: # Not in a course, or not allowed to modify parms
921: $ENV{'user.error.msg'}=
922: "/adm/dropadd:cst:0:0:Cannot drop or add students";
923: return HTTP_NOT_ACCEPTABLE;
924: }
925: return OK;
926: }
927:
928: 1;
929: __END__
930:
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