1: # The LearningOnline Network with CAPA
2: # Handler to drop and add students in courses
3: #
4: # (Handler to set parameters for assessments
5: #
6: # (Handler to resolve ambiguous file locations
7: #
8: # (TeX Content Handler
9: #
10: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
11: #
12: # 10/11,10/12,10/16 Gerd Kortemeyer)
13: #
14: # 11/20,11/21,11/22,11/23,11/24,11/25,11/27,11/28,
15: # 12/08,12/12 Gerd Kortemeyer)
16: #
17: # 12/26,12/27,12/28 Gerd Kortemeyer
18:
19: package Apache::londropadd;
20:
21: use strict;
22: use Apache::lonnet;
23: use Apache::Constants qw(:common :http REDIRECT);
24:
25:
26: # ================================================================ Main Handler
27:
28: sub handler {
29: my $r=shift;
30:
31: if ($r->header_only) {
32: $r->content_type('text/html');
33: $r->send_http_header;
34: return OK;
35: }
36:
37: # ----------------------------------------------------- Needs to be in a course
38:
39: if (($ENV{'request.course.fn'}) &&
40: (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) {
41:
42: # ------------------------------------------------------------------ Start page
43: $r->content_type('text/html');
44: $r->send_http_header;
45: $r->print(<<ENDHEAD);
46: <html>
47: <head>
48: <title>LON-CAPA Student Drop/Add</title>
49: </head>
50: <body bgcolor="#FFFFFF">
51: <img align=right src=/adm/lonIcons/lonlogos.gif>
52: <h1>Drop/Add Students</h1>
53: <form method="post" enctype="multipart/form-data"
54: action="/adm/dropadd" name="studentform">
55: <h2>Course: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}</h2>
56: ENDHEAD
57: # --------------------------------------------------- Phase one, initial screen
58: unless ($ENV{'form.phase'}) {
59: $r->print(<<ENDUPFORM);
60: <input type=hidden name=phase value=two>
61: <hr>
62: <h3>Upload a courselist</h3>
63: <input type=file name=upfile size=50>
64: <br>Type: <select name=upfiletype>
65: <option value=csv>CSV (comma separated values, spreadsheet)</option>
66: <option value=space>Space separated</option>
67: <option value=tab>Tabulator separated</option>
68: <option value=xml>HTML/XML</option>
69: </select>
70: <p><input type=submit name=fileupload value="Upload Courselist">
71: <hr>
72: <h3>Enroll a single student</h3>
73: <p><input type=submit name=enroll value="Enroll Student">
74: <hr>
75: <h3>Drop a student</h3>
76: <p><input type=submit name=drop value="Drop Student">
77: ENDUPFORM
78: }
79: # ------------------------------------------------------------------- Phase two
80: if ($ENV{'form.phase'} eq 'two') {
81: if ($ENV{'form.fileupload'}) {
82: my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
83: '_enroll_'.$ENV{'request.course.id'}.'_'.time.'_'.$$;
84: {
85: my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
86: '/tmp/'.$datatoken.'.tmp');
87: print $fh $ENV{'form.upfile'};
88: }
89: my $separator='';
90: my $remove='';
91: if ($ENV{'form.upfiletype'} eq 'csv') {
92: $separator='\"\,\s*\"';
93: $remove='"';
94: } elsif ($ENV{'form.upfiletype'} eq 'space') {
95: $separator='\s+';
96: } elsif ($ENV{'form.upfiletype'} eq 'tab') {
97: $separator='\t+';
98: } elsif ($ENV{'form.upfiletype'} eq 'xml') {
99: }
100: my @lines=split(/\n/,$ENV{'form.upfile'});
101: my $total=$#lines;
102: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
103: my $krbdefdom=$1;
104: $krbdefdom=~tr/a-z/A-Z/;
105: my $today=time;
106: my $halfyear=$today+15552000;
107: my $defdom=$r->dir_config('lonDefDomain');
108: $r->print(<<ENDPICK);
109: <input type=hidden name=phase value=three>
110: <input type=hidden name=datatoken value="$datatoken">
111: <input type=hidden name=upfiletype value=$ENV{'form.upfiletype'}>
112: <hr>
113: <h3>Identify fields</h3>
114: Total number of records found in file: $total
115: <script>
116: function verify(vf) {
117: var founduname=0;
118: var foundpwd=0;
119: var foundname=0;
120: var foundid=0;
121: var foundsec=0;
122: var foundatype=0;
123: var tw;
124: var message='';
125: for (i=0;i<=vf.nfields.value;i++) {
126: tw=eval('vf.f'+i+'.selectedIndex');
127: if (tw==1) { founduname=1; }
128: if ((tw>=2) && (tw<=6)) { foundname=1; }
129: if (tw==7) { foundid=1; }
130: if (tw==8) { foundsec=1; }
131: if (tw==9) { foundpwd=1; }
132: }
133: if (founduname==0) {
134: alert('You need to specify at least the username field');
135: return;
136: }
137: if (vf.login[0].checked) {
138: foundatype=1;
139: if (vf.krbdom.value=='') {
140: alert('You need to specify the Kerberos domain');
141: return;
142: }
143: }
144: if (vf.login[1].checked) {
145: foundatype=1;
146: if ((vf.intpwd.value=='') && (foundpwd==0)) {
147: alert('You need to specify the initial password');
148: return;
149: }
150: }
151: if (foundatype==0) {
152: alert('You need to set the login type');
153: return;
154: }
155: if (foundname==0) { message='No name fields specified. '; }
156: if (foundid==0) { message+='No ID or student number field specified. '; }
157: if (foundsec==0) { message+='No section or group field specified. '; }
158: if (vf.startdate.value=='') {
159: message+='No starting date set. ';
160: }
161: if (vf.enddate.value=='') {
162: message+='No ending date set. ';
163: }
164: if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
165: if (vf.enddate.value<vf.startdate.value) {
166: alert('Ending date is before starting date');
167: return;
168: }
169: }
170: if (message!='') {
171: message+='Continue enrollment?';
172: if (confirm(message)) {
173: pclose();
174: vf.submit();
175: }
176: } else {
177: pclose();
178: vf.submit();
179: }
180: }
181:
182: function flip(vf,tf) {
183: var nw=eval('vf.f'+tf+'.selectedIndex');
184: var i;
185: for (i=0;i<=vf.nfields.value;i++) {
186: if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
187: eval('vf.f'+i+'.selectedIndex=0;')
188: }
189: }
190: if (nw==2) {
191: for (i=0;i<=vf.nfields.value;i++) {
192: if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
193: (eval('vf.f'+i+'.selectedIndex')<=6)) {
194: eval('vf.f'+i+'.selectedIndex=0;')
195: }
196: }
197: }
198: if ((nw>=3) && (nw<=6)) {
199: for (i=0;i<=vf.nfields.value;i++) {
200: if (eval('vf.f'+i+'.selectedIndex')==2) {
201: eval('vf.f'+i+'.selectedIndex=0;')
202: }
203: }
204: }
205: if (nw==9) {
206: vf.login[1].checked=true;
207: vf.intpwd.value='';
208: vf.krbdom.value='';
209: }
210:
211: }
212:
213: function clearpwd(vf) {
214: var i;
215: for (i=0;i<=vf.nfields.value;i++) {
216: if (eval('vf.f'+i+'.selectedIndex')==9) {
217: eval('vf.f'+i+'.selectedIndex=0;')
218: }
219: }
220: }
221:
222: function setkrb(vf) {
223: if (vf.krbdom.value!='') {
224: clearpwd(vf);
225: vf.login[0].checked=true;
226: vf.krbdom.value=vf.krbdom.value.toUpperCase();
227: vf.intpwd.value='';
228: }
229: }
230:
231: function setint(vf) {
232: if (vf.intpwd.value!='') {
233: clearpwd(vf);
234: vf.login[1].checked=true;
235: vf.krbdom.value='';
236: }
237: }
238:
239: function clickkrb(vf) {
240: vf.krbdom.value='$krbdefdom';
241: clearpwd(vf);
242: vf.intpwd.value='';
243: }
244:
245: function clickint(vf) {
246: vf.krbdom.value='';
247: }
248:
249: function pclose() {
250: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
251: "height=350,width=350,scrollbars=no,menubar=no");
252: parmwin.close();
253: }
254:
255: function pjump(type,dis,value,marker,ret,call) {
256: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
257: +"&value="+escape(value)+"&marker="+escape(marker)
258: +"&return="+escape(ret)
259: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
260: "height=350,width=350,scrollbars=no,menubar=no");
261:
262: }
263:
264: function dateset() {
265: if (document.studentform.pres_marker.value=='end') {
266: document.studentform.enddate.value=
267: document.studentform.pres_value.value;
268: }
269: if (document.studentform.pres_marker.value=='start') {
270: document.studentform.startdate.value=
271: document.studentform.pres_value.value;
272: }
273: pclose();
274: }
275:
276: </script>
277: <table border=2><tr><th>Field</th><th>Samples</th></tr>
278: ENDPICK
279: my @sone; my @stwo; my @sthree; my $nfields=0;
280: if ($#lines>=0) {
281: $lines[0]=~s/^$remove//;
282: $lines[0]=~s/$remove$//;
283: @sone=split(/$separator/,$lines[0]);
284: $nfields=$#sone;
285: if ($#lines>=1) {
286: $lines[1]=~s/^$remove//;
287: $lines[1]=~s/$remove$//;
288: @stwo=split(/$separator/,$lines[1]);
289: $nfields=$#stwo;
290: }
291: if ($#lines>=2) {
292: $lines[2]=~s/^$remove//;
293: $lines[2]=~s/$remove$//;
294: @sthree=split(/$separator/,$lines[2]);
295: $nfields=$#sthree;
296: }
297: my $i;
298: for ($i=0;$i<=$nfields;$i++) {
299: $r->print('<tr><td><select name=f'.$i.
300: ' onChange="flip(this.form,'.$i.');">');
301: map {
302: my ($value,$display)=split(/\:/,$_);
303: $r->print('<option value='.$value.'>'.$display.
304: '</option>');
305: } ('none: ','username:Username',
306: 'names:Last Name, First Names',
307: 'fname:First Name','mname:Middle Names/Initials',
308: 'lname:Last Name','gen:Generation',
309: 'id:ID/Student Number','sec:Group/Section',
310: 'ipwd:Initial Password');
311: $r->print('</select></td><td>');
312: if (defined($sone[$i])) {
313: $r->print($sone[$i]."</br>\n");
314: }
315: if (defined($stwo[$i])) {
316: $r->print($stwo[$i]."</br>\n");
317: }
318: if (defined($sthree[$i])) {
319: $r->print($sthree[$i]."</br>\n");
320: }
321: $r->print('</td></tr>');
322: }
323: }
324: $r->print(<<ENDPICK);
325: </table>
326: <input type=hidden name=nfields value=$nfields>
327: <h3>Login Type</h3>
328: <input type=radio name=login value=krb onClick="clickkrb(this.form);">
329: Kerberos authenticated with domain
330: <input type=text size=10 name=krbdom onChange="setkrb(this.form);"><p>
331: <input type=radio name=login value=int onClick="clickint(this.form);">
332: Internally authenticated (with initial password
333: <input type=text size=10 name=intpwd onChange="setint(this.form);">)
334: <h3>LON-CAPA Domain for Students</h3>
335: LON-CAPA domain: <input type=text size=10 value=$defdom name=lcdomain><p>
336: <h3>Starting and Ending Dates</h3>
337: <input type="hidden" value='' name="pres_value">
338: <input type="hidden" value='' name="pres_type">
339: <input type="hidden" value='' name="pres_marker">
340: <input type="hidden" value='$today' name=startdate>
341: <input type="hidden" value='$halfyear' name=enddate>
342: <a
343: href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
344: >Set Starting Date</a><p>
345:
346: <a
347: href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
348: >Set Ending Date</a><p>
349: <h3>Full Update</h3>
350: <input type=checkbox name=fullup value=yes> Full update
351: (also dropping students)<p>
352: <input type=button onClick="verify(this.form)" value="Update Courselist"><br>
353: Note: for large courses, this operation might be time consuming.
354: ENDPICK
355: } elsif ($ENV{'form.enroll'}) {
356: } elsif ($ENV{'form.drop'}) {
357: }
358: }
359: # ----------------------------------------------------------------- Phase three
360: if ($ENV{'form.phase'} eq 'three') {
361: if ($ENV{'form.datatoken'}) {
362: my $separator='';
363: my $remove='';
364: if ($ENV{'form.upfiletype'} eq 'csv') {
365: $separator='\"\,\s*\"';
366: $remove='"';
367: } elsif ($ENV{'form.upfiletype'} eq 'space') {
368: $separator='\s+';
369: } elsif ($ENV{'form.upfiletype'} eq 'tab') {
370: $separator='\t+';
371: } elsif ($ENV{'form.upfiletype'} eq 'xml') {
372: }
373: my %fields=();
374: for (my $i=0;$i<=$ENV{'form.nfields'};$i++) {
375: $fields{$ENV{'form.f'.$i}}=$i;
376: }
377: my $startdate=$ENV{'form.startdate'};
378: my $enddate=$ENV{'form.enddate'};
379: if ($startdate=~/\D/) { $startdate=''; }
380: if ($enddate=~/\D/) { $enddate=''; }
381: my $domain=$ENV{'form.lcdomain'};
382: my $amode='';
383: my $genpwd='';
384: if ($ENV{'form.login'} eq 'krb') {
385: $amode='krb4';
386: $genpwd=$ENV{'form.krbdom'};
387: } elsif ($ENV{'form.login'} eq 'int') {
388: $amode='internal';
389: if ((defined($ENV{'form.intpwd'})) && ($ENV{'form.intpwd'})) {
390: $genpwd=$ENV{'form.intpwd'};
391: }
392: }
393: unless (($domain=~/\W/) || ($amode eq '')) {
394: $r->print('<h3>Enrolling Students</h3>');
395: my $count=1;
396: # ----------------------------------------------------------- Get new classlist
397: my @studentdata=();
398: {
399: my $fh;
400: if ($fh=Apache::File->new($r->dir_config('lonDaemons').
401: '/tmp/'.$ENV{'form.datatoken'}.'.tmp')) {
402: @studentdata=<$fh>;
403: }
404: }
405: # --------------------------------------------------------- Enroll new students
406: map {
407: my $line=$_;
408: chomp($line);
409: $line=~s/^$remove//;
410: $line=~s/$remove$//;
411: my @entries=split(/$separator/,$line);
412: unless (($entries[$fields{'username'}] eq '') ||
413: (!defined($entries[$fields{'username'}]))) {
414: my $fname=''; my $mname=''; my $lname=''; my $gen='';
415: if (defined($fields{'names'})) {
416: ($lname,$fname,$mname)=
417: ($entries[$fields{'names'}]=~/([^\,]+)\,\s*(\w+)\s*(.*)$/);
418: } else {
419: if (defined($fields{'fname'})) {
420: $fname=$entries[$fields{'fname'}];
421: }
422: if (defined($fields{'mname'})) {
423: $mname=$entries[$fields{'mname'}];
424: }
425: if (defined($fields{'lname'})) {
426: $lname=$entries[$fields{'lname'}];
427: }
428: if (defined($fields{'gen'})) {
429: $gen=$entries[$fields{'gen'}];
430: }
431: }
432: if ($entries[$fields{'username'}]=~/\W/) {
433: $r->print('<p><b>Unacceptable username: '.
434: $entries[$fields{'username'}].' for user '.
435: $fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
436: } else {
437: my $sec='';
438: my $username=$entries[$fields{'username'}];
439: if (defined($fields{'sec'})) {
440: if (defined($entries[$fields{'sec'}])) {
441: $sec=$entries[$fields{'sec'}];
442: }
443: }
444: my $id='';
445: if (defined($fields{'id'})) {
446: if (defined($entries[$fields{'id'}])) {
447: $id=$entries[$fields{'id'}];
448: }
449: $id=~tr/A-Z/a-z/;
450: }
451: my $password='';
452: if ($genpwd) {
453: $password=$genpwd;
454: } else {
455: if (defined($fields{'ipwd'})) {
456: if ($entries[$fields{'ipwd'}]) {
457: $password=$entries[$fields{'ipwd'}];
458: }
459: }
460: }
461: if ($password) {
462: my $reply=&Apache::lonnet::modifystudent(
463: $domain,$username,$id,$amode,$password,
464: $fname,$mname,$lname,$gen,$sec,$enddate,$startdate);
465: unless ($reply eq 'ok') {
466: $r->print(
467: "<p><b>Error enrolling $username: $reply</b><p>");
468: } else {
469: $r->print('. ');
470: }
471: } else {
472: $r->print(
473: "<p><b>No password for $username</b><p>");
474: }
475: }
476: }
477: } @studentdata;
478: # --------------------------------------------------------------- Drop students
479: if ($ENV{'form.fullup'} eq 'yes') {
480: $r->print('<h3>Dropping Students</h3>');
481: # ------------------------------------------------------- Get current classlist
482: my $cid=$ENV{'request.course.id'};
483: my $classlst=&Apache::lonnet::reply
484: ('dump:'.$ENV{'course.'.$cid.'.domain'}.':'.
485: $ENV{'course.'.$cid.'.num'}.':classlist',
486: $ENV{'course.'.$cid.'.home'});
487: my %currentlist=();
488: my $now=time;
489: unless ($classlst=~/^error\:/) {
490: } else {
491: $r->print(
492: '<font color=red><h3>Could not access classlist: '.$classlst.
493: '</h3></font>');
494: }
495: }
496: # ------------------------------------------------------------------------ Done
497: }
498: }
499: }
500: # ------------------------------------------------------------------------- End
501: $r->print('</form></body></html>');
502: } else {
503: # ----------------------------- Not in a course, or not allowed to modify parms
504: $ENV{'user.error.msg'}=
505: "/adm/dropadd:cst:0:0:Cannot drop or add students";
506: return HTTP_NOT_ACCEPTABLE;
507: }
508: return OK;
509: }
510:
511: 1;
512: __END__
513:
514:
515:
516:
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