Annotation of loncom/interface/londropadd.pm, revision 1.31

1.1       www         1: # The LearningOnline Network with CAPA
                      2: # Handler to drop and add students in courses 
                      3: #
1.31    ! matthew     4: # $Id: londropadd.pm,v 1.30 2002/04/25 19:21:34 matthew Exp $
1.17      albertel    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: #
1.1       www        28: # (Handler to set parameters for assessments
                     29: #
                     30: # (Handler to resolve ambiguous file locations
                     31: #
                     32: # (TeX Content Handler
                     33: #
1.14      harris41   34: # YEAR=2000
1.1       www        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: #
1.7       www        42: # 12/26,12/27,12/28,
1.14      harris41   43: # YEAR=2001
1.13      www        44: # 01/01/01,01/15,02/10,02/13,02/14,02/22 Gerd Kortemeyer
1.14      harris41   45: # 8/6 Scott Harrison
1.16      www        46: # Guy Albertelli
                     47: # 9/25 Gerd Kortemeyer
1.18      www        48: # 12/19 Guy Albertelli
                     49: # YEAR=2002
                     50: # 1/4 Gerd Kortemeyer
1.1       www        51: 
                     52: package Apache::londropadd;
                     53: 
                     54: use strict;
1.24      albertel   55: use Apache::lonnet();
                     56: use Apache::loncommon();
1.1       www        57: use Apache::Constants qw(:common :http REDIRECT);
                     58: 
1.10      www        59: # ================================================================ Print header
1.1       www        60: 
1.10      www        61: sub header {
1.27      matthew    62:     return(<<ENDHEAD);
1.1       www        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
1.10      www        74: }
                     75: 
                     76: # =========== Drop student from all sections of a course, except optional $csec
1.26      matthew    77: sub modifystudent {
1.25      matthew    78:     my ($udom,$unam,$courseid,$csec)=@_;
1.26      matthew    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
1.25      matthew    82:     $courseid=~s/\_/\//g;
                     83:     $courseid=~s/^(\w)/\/$1/;
1.26      matthew    84:     my %roles = &Apache::lonnet::dump('roles',$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
1.25      matthew    93:             my $section=$1;
1.26      matthew    94:             $section='' if ($course eq $courseid.'_st');
1.25      matthew    95:             if (((!$section) && (!$csec)) || ($section ne $csec)) {
1.27      matthew    96:                 my (undef,$end,$start)=split(/\_/,$roles{$course});
1.25      matthew    97:                 my $now=time;
1.27      matthew    98:                 if (!($start && ($now<$start)) || !($end && ($now>$end))) {
1.25      matthew    99:                     my $reply=&Apache::lonnet::modifystudent
1.26      matthew   100:                         ($udom,$unam,'','','','','','','',$section,time);
1.25      matthew   101:                 }
1.10      www       102:             }
                    103:         }
1.20      harris41  104:     }
1.10      www       105: }
                    106: 
1.31    ! matthew   107: # ============ build a domain and server selection form
        !           108: sub domain_form {
        !           109:     my ($defdom) = @_;
        !           110:     # Set up domain and server selection forms
        !           111:     #
        !           112:     # Get the domains
        !           113:     my @domains = &Apache::loncommon::get_domains();
        !           114:     # build up the menu information to be passed to 
        !           115:     # &Apache::loncommon::linked_select_forms
        !           116:     my %select_menus;
        !           117:     foreach my $dom (@domains) {
        !           118:         # set up the text for this domain
        !           119:         $select_menus{$dom}->{'text'}= $dom;
        !           120:         # we want a choice of 'default' as the default in the second menu
        !           121:         $select_menus{$dom}->{'default'}= 'default';
        !           122:         $select_menus{$dom}->{'select2'}->{'default'} = 'default';
        !           123:         # Now build up the other items in the second menu
        !           124:         my %servers = &Apache::loncommon::get_home_servers($dom);
        !           125:         foreach my $server (keys(%servers)) {
        !           126:             $select_menus{$dom}->{'select2'}->{$server} 
        !           127:                                             = "$server $servers{$server}";
        !           128:         }
        !           129:     }
        !           130:     my $result  = &Apache::loncommon::linked_select_forms
        !           131:         ('studentform',' with home server ',$defdom,
        !           132:          'lcdomain','lcserver',\%select_menus);
        !           133:     return $result;
        !           134: }
        !           135: 
1.10      www       136: # ============================================================== Menu Phase One
                    137: sub menu_phase_one {
                    138:     my $r=shift;
1.24      albertel  139:     my $upfile_select=&Apache::loncommon::upfile_select_html();
1.10      www       140:     $r->print(<<ENDUPFORM);
1.2       www       141: <input type=hidden name=phase value=two>
                    142: <hr>
                    143: <h3>Upload a courselist</h3>
1.24      albertel  144: $upfile_select
1.2       www       145: <p><input type=submit name=fileupload value="Upload Courselist">
                    146: <hr>
                    147: <h3>Enroll a single student</h3>
                    148: <p><input type=submit name=enroll value="Enroll Student">
                    149: <hr>
1.11      www       150: <h3>Drop students</h3>
                    151: <p><input type=submit name=drop value="Selection List">
1.2       www       152: ENDUPFORM
1.10      www       153: }
                    154: 
1.23      albertel  155: sub phase_two_header {
                    156:     my ($r,$datatoken,$distotal,$krbdefdom)=@_;
1.24      albertel  157:     my $javascript;
                    158:     if ($ENV{'form.upfile_associate'} eq 'reverse') {
                    159: 	$javascript=&phase_two_javascript_reverse_associate();
                    160:     } else {
                    161: 	$javascript=&phase_two_javascript_forward_associate();
                    162:     }
                    163:     my $javascript_validations=&javascript_validations($krbdefdom);
1.10      www       164:     $r->print(<<ENDPICK);
1.2       www       165: <hr>
                    166: <h3>Identify fields</h3>
1.22      albertel  167: Total number of records found in file: $distotal <hr />
                    168: Enter as many fields as you can. The system will inform you and bring you back
                    169: to this page if the data selected is insufficient to run your class.<hr />
1.26      matthew   170: <input type="submit" name="associate"  value="Reverse Association" />
                    171: <input type="hidden" name="phase"      value="three" />
                    172: <input type="hidden" name="datatoken"  value="$datatoken" />
1.24      albertel  173: <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
                    174: <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
1.26      matthew   175: <input type="hidden" name="upfile_associate" 
                    176:                                        value="$ENV{'form.upfile_associate'}" />
1.24      albertel  177: <hr />
1.28      matthew   178: <script type="text/javascript" language="Javascript">
1.24      albertel  179: $javascript
                    180: $javascript_validations
                    181: </script>
                    182: ENDPICK
                    183: }
                    184: 
                    185: sub javascript_validations {
                    186:     my ($krbdefdom)=@_;
1.28      matthew   187:     my %param = ( formname => 'studentform',
                    188:                   kerb_def_dom => $krbdefdom );
                    189:     my $authheader = &Apache::loncommon::authform_header(%param);
1.24      albertel  190:     return (<<ENDPICK);
                    191: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec) {
1.3       www       192:     var foundatype=0;
                    193:     var message='';
                    194:     if (founduname==0) {
1.28      matthew   195: 	alert('You need to specify the username field');
1.3       www       196:         return;
                    197:     }
1.29      matthew   198:     if (current.radiovalue == null || current.radiovalue == 'nochange') {
1.28      matthew   199:         // They did not check any of the login radiobuttons.
                    200:         alert('You must choose an authentication type');
                    201:         return;
                    202:     }
                    203:     foundatype=1;
1.29      matthew   204:     if (current.argfield == null || current.argfield == '') {
1.28      matthew   205:         var alertmsg = '';
1.29      matthew   206:         switch (current.value) {
1.28      matthew   207:             case 'krb': 
                    208:                 alertmsg = 'You need to specify the Kerberos domain';
                    209:                 break;
                    210:             case 'loc':
                    211:             case 'fsys':
                    212:                 alertmsg = 'You need to specify the initial password';
                    213:                 break;
                    214:             case 'fsys':
                    215:                 alertmsg = '';
                    216:                 break;
                    217:             default: 
                    218:                 alertmsg = '';
1.3       www       219:         }
1.28      matthew   220:         if (alertmsg != '') {
                    221:             alert(alertmsg);
1.3       www       222:             return;
                    223:         }
                    224:     }
1.28      matthew   225: 
1.3       www       226:     if (foundname==0) { message='No name fields specified. '; }
                    227:     if (foundid==0) { message+='No ID or student number field specified. '; }
                    228:     if (foundsec==0) { message+='No section or group field specified. '; }
1.4       www       229:     if (vf.startdate.value=='') {
                    230: 	message+='No starting date set. ';
1.3       www       231:     }
1.4       www       232:     if (vf.enddate.value=='') {
                    233:         message+='No ending date set. ';
                    234:     }
                    235:     if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
1.10      www       236:        if (Math.round(vf.enddate.value)<Math.round(vf.startdate.value)) {
1.4       www       237:           alert('Ending date is before starting date');
                    238:           return;
                    239:        }
                    240:     }
                    241:     if (message!='') {
                    242:        message+='Continue enrollment?';
                    243:        if (confirm(message)) {
                    244: 	  pclose();
                    245: 	  vf.submit();
                    246:        }
                    247:     } else {
                    248:       pclose();
                    249:       vf.submit();
1.24      albertel  250:     }
1.3       www       251: }
                    252: 
                    253: 
1.4       www       254:     function pclose() {
                    255:         parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
                    256:                  "height=350,width=350,scrollbars=no,menubar=no");
                    257:         parmwin.close();
                    258:     }
                    259: 
                    260:     function pjump(type,dis,value,marker,ret,call) {
                    261:         parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
                    262:                  +"&value="+escape(value)+"&marker="+escape(marker)
                    263:                  +"&return="+escape(ret)
                    264:                  +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
                    265:                  "height=350,width=350,scrollbars=no,menubar=no");
                    266: 
                    267:     }
                    268: 
                    269:     function dateset() {
                    270:         if (document.studentform.pres_marker.value=='end') {
                    271:            document.studentform.enddate.value=
                    272: 	       document.studentform.pres_value.value;
                    273:         }
                    274:         if (document.studentform.pres_marker.value=='start') {
                    275:            document.studentform.startdate.value=
                    276: 	       document.studentform.pres_value.value;
                    277:         }
                    278:         pclose();
                    279:     }
1.3       www       280: 
1.28      matthew   281: $authheader
1.24      albertel  282: ENDPICK
1.28      matthew   283: 
1.24      albertel  284: }
                    285: 
                    286: sub phase_two_javascript_forward_associate {
                    287:     return(<<ENDPICK);
                    288: function verify(vf) {
                    289:     var founduname=0;
                    290:     var foundpwd=0;
                    291:     var foundname=0;
                    292:     var foundid=0;
                    293:     var foundsec=0;
                    294:     var tw;
                    295:     for (i=0;i<=vf.nfields.value;i++) {
                    296:         tw=eval('vf.f'+i+'.selectedIndex');
                    297:         if (tw==1) { founduname=1; }
                    298:         if ((tw>=2) && (tw<=6)) { foundname=1; }
                    299:         if (tw==7) { foundid=1; }
                    300:         if (tw==8) { foundsec=1; }
                    301:         if (tw==9) { foundpwd=1; }
                    302:     }
                    303:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
                    304: }
                    305: 
                    306: function flip(vf,tf) {
                    307:    var nw=eval('vf.f'+tf+'.selectedIndex');
                    308:    var i;
                    309:    for (i=0;i<=vf.nfields.value;i++) {
                    310:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
                    311:           eval('vf.f'+i+'.selectedIndex=0;')
                    312:       }
                    313:    }
                    314:    if (tf==1 && nw!=0) {
                    315:       for (i=2;i<=5;i++) {
                    316:          eval('vf.f'+i+'.selectedIndex=0;')
                    317:       }
                    318:    }
                    319:    if (nw==2) {
                    320:       for (i=0;i<=vf.nfields.value;i++) {
                    321:          if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
                    322:              (eval('vf.f'+i+'.selectedIndex')<=6)) {
                    323:              eval('vf.f'+i+'.selectedIndex=0;')
                    324:          }
                    325:       }
                    326:    }
                    327:    if ((nw>=3) && (nw<=6)) {
                    328:       for (i=0;i<=vf.nfields.value;i++) {
                    329:          if (eval('vf.f'+i+'.selectedIndex')==2) {
                    330:              eval('vf.f'+i+'.selectedIndex=0;')
                    331:          }
                    332:       }
                    333:    }
                    334:    if (nw==9) {
1.28      matthew   335:        changed_radio('int',document.studentform);
                    336:        set_auth_radio_buttons('int',document.studentform);
                    337:        vf.intarg.value='';
                    338:        vf.krbarg.value='';
1.24      albertel  339:        vf.locarg.value='';
                    340:    }
                    341: }
                    342: 
                    343: function clearpwd(vf) {
                    344:     var i;
                    345:     for (i=0;i<=vf.nfields.value;i++) {
                    346:         if (eval('vf.f'+i+'.selectedIndex')==9) {
                    347:             eval('vf.f'+i+'.selectedIndex=0;')
                    348:         }
                    349:     }
                    350: }
                    351: 
                    352: ENDPICK
                    353: }
                    354: 
                    355: sub phase_two_javascript_reverse_associate {
                    356:     return(<<ENDPICK);
                    357: function verify(vf) {
                    358:     var founduname=0;
                    359:     var foundpwd=0;
                    360:     var foundname=0;
                    361:     var foundid=0;
                    362:     var foundsec=0;
                    363:     var tw;
                    364:     for (i=0;i<=vf.nfields.value;i++) {
                    365:         tw=eval('vf.f'+i+'.selectedIndex');
                    366:         if (i==0 && tw!=0) { founduname=1; }
                    367:         if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
                    368:         if (i==6 && tw!=0) { foundid=1; }
                    369:         if (i==7 && tw!=0) { foundsec=1; }
                    370:         if (i==8 && tw!=0) { foundpwd=1; }
                    371:     }
                    372:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
                    373: }
                    374: 
                    375: function flip(vf,tf) {
                    376:    var nw=eval('vf.f'+tf+'.selectedIndex');
                    377:    var i;
                    378:    // picked the all one one name field, reset the other name ones to blank
                    379:    if (tf==1 && nw!=0) {
                    380:       for (i=2;i<=5;i++) {
                    381:          eval('vf.f'+i+'.selectedIndex=0;')
                    382:       }
                    383:    }
                    384:    //picked one of the piecewise name fields, reset the all in
                    385:    //one field to blank
                    386:    if ((tf>=2) && (tf<=5) && (nw!=0)) {
                    387:       eval('vf.f1.selectedIndex=0;')
                    388:    }
                    389:    // intial password specified, pick internal authentication
                    390:    if (tf==8 && nw!=0) {
1.28      matthew   391:        changed_radio('int',document.studentform);
                    392:        set_auth_radio_buttons('int',document.studentform);
                    393:        vf.krbarg.value='';
                    394:        vf.intarg.value='';
1.24      albertel  395:        vf.locarg.value='';
                    396:    }
                    397: }
                    398: 
                    399: function clearpwd(vf) {
                    400:     var i;
                    401:     if (eval('vf.f8.selectedIndex')!=0) {
                    402:         eval('vf.f8.selectedIndex=0;')
                    403:     }
                    404: }
1.2       www       405: ENDPICK
1.23      albertel  406: }
1.10      www       407: 
1.23      albertel  408: sub phase_two_end {
                    409:     my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
1.28      matthew   410:     my %param = ( formname => 'document.studentform');
                    411:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
                    412:     my $intform = &Apache::loncommon::authform_internal(%param);
                    413:     my $locform = &Apache::loncommon::authform_local(%param);
1.31    ! matthew   414:     my $domform = &domain_form($defdom);
1.23      albertel  415:     $r->print(<<ENDPICK);
1.3       www       416: </table>
1.10      www       417: <input type=hidden name=nfields value=$i>
                    418: <input type=hidden name=keyfields value="$keyfields">
1.3       www       419: <h3>Login Type</h3>
1.15      albertel  420: <p>Note: this will not take effect if the user already exists</p>
                    421: <p>
1.28      matthew   422: $krbform
1.15      albertel  423: </p>
                    424: <p>
1.28      matthew   425: $intform
1.15      albertel  426: </p>
                    427: <p>
1.28      matthew   428: $locform
1.15      albertel  429: </p>
1.5       www       430: <h3>LON-CAPA Domain for Students</h3>
1.29      matthew   431: LON-CAPA domain: $domform <p>
1.5       www       432: <h3>Starting and Ending Dates</h3>
1.26      matthew   433: <input type="hidden" value=''          name="pres_value"  >
                    434: <input type="hidden" value=''          name="pres_type"   >
                    435: <input type="hidden" value=''          name="pres_marker" >
                    436: <input type="hidden" value='$today'    name="startdate"   >
                    437: <input type="hidden" value='$halfyear' name="enddate"     >
1.4       www       438: <a 
                    439:  href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
                    440: >Set Starting Date</a><p>
                    441: 
                    442: <a 
                    443:  href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
                    444: >Set Ending Date</a><p>
1.5       www       445: <h3>Full Update</h3>
                    446: <input type=checkbox name=fullup value=yes> Full update 
1.11      www       447: (also print list of users not enrolled anymore)<p>
1.18      www       448: <h3>ID/Student Number</h3>
                    449: <input type=checkbox name=forceid value=yes> 
                    450: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1.19      www       451: (only do if you know what you are doing)<p>
1.26      matthew   452: <input type="button" onClick="verify(this.form)" value="Update Courselist"><br>
1.6       www       453: Note: for large courses, this operation might be time consuming.
1.3       www       454: ENDPICK
1.23      albertel  455: }
1.24      albertel  456: 
1.23      albertel  457: # ======================================================= Menu Phase Two Upload
                    458: sub menu_phase_two_upload {
                    459:     my $r=shift;
1.26      matthew   460: 
1.24      albertel  461:     my $datatoken;
                    462:     if (!$ENV{'form.datatoken'}) {
1.26      matthew   463:       $datatoken=&Apache::loncommon::upfile_store($r);
1.24      albertel  464:     } else {
1.26      matthew   465:       $datatoken=$ENV{'form.datatoken'};
                    466:       &Apache::loncommon::load_tmp_file($r);
1.24      albertel  467:     }
                    468:     my @records=&Apache::loncommon::upfile_record_sep();
1.23      albertel  469:     my $total=$#records;
                    470:     my $distotal=$total+1;
                    471:     $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
                    472:     my $krbdefdom=$1;
                    473:     $krbdefdom=~tr/a-z/A-Z/;
                    474:     my $today=time;
                    475:     my $halfyear=$today+15552000;
                    476:     my $defdom=$r->dir_config('lonDefDomain');
                    477:     &phase_two_header($r,$datatoken,$distotal,$krbdefdom);
1.24      albertel  478:     my $i;
                    479:     my $keyfields;
1.23      albertel  480:     if ($total>=0) {
1.24      albertel  481: 	my @d=(['username','Username'],['names','Last Name, First Names'],
                    482: 	       ['fname','First Name'],['mname','Middle Names/Initials'],
                    483: 	       ['lname','Last Name'],['gen','Generation'],
                    484: 	       ['id','ID/Student Number'],['sec','Group/Section'],
                    485: 	       ['ipwd','Initial Password']);
                    486: 	if ($ENV{'form.upfile_associate'} eq 'reverse') {	
                    487: 	    &Apache::loncommon::csv_print_samples($r,\@records);
                    488: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
                    489: 	    foreach (@d) { $keyfields.=$_->[0].','; }
                    490: 	    chop($keyfields);
                    491: 	} else {
                    492: 	    unshift(@d,['none','']);
                    493: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
                    494: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
                    495: 	    $keyfields=join(',',sort(keys(%sone)));
1.23      albertel  496: 	}
                    497:     }
                    498:     &phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear);
1.10      www       499: }
                    500: 
1.12      www       501: # ======================================================= Enroll single student
                    502: sub enroll_single_student {
                    503:     my $r=shift;
                    504:     $r->print('<h3>Enrolling Student</h3>');
1.31    ! matthew   505:     $r->print($ENV{'form.cuname'}." in domain ".$ENV{'form.lcdomain'});
1.12      www       506:     if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
1.31    ! matthew   507:         ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
        !           508:         # Deal with home server selection
        !           509:         my $domain=$ENV{'form.lcdomain'};
        !           510:         my $desiredhost = $ENV{'form.lcserver'};
        !           511:         if (lc($desiredhost) eq 'default') {
        !           512:             $desiredhost = undef;
        !           513:         } else {
        !           514:             my %home_servers = &Apache::loncommon::get_home_servers($domain);
        !           515:             if (! exists($home_servers{$desiredhost})) {
        !           516:                 $r->print('<font color="#ff0000">Error:</font>'.
        !           517:                           'Invalid home server specified');
        !           518:                 return;
        !           519:             }
        !           520:         }
        !           521:         $r->print(" with server $desiredhost :");
        !           522:         # End of home server selection logic
1.12      www       523: 	my $amode='';
                    524:         my $genpwd='';
                    525:         if ($ENV{'form.login'} eq 'krb') {
1.26      matthew   526:            $amode='krb4';
1.28      matthew   527:            $genpwd=$ENV{'form.krbarg'};
1.12      www       528:         } elsif ($ENV{'form.login'} eq 'int') {
1.26      matthew   529:            $amode='internal';
1.28      matthew   530:            $genpwd=$ENV{'form.intarg'};
1.15      albertel  531:         }  elsif ($ENV{'form.login'} eq 'loc') {
                    532: 	    $amode='localauth';
                    533: 	    $genpwd=$ENV{'form.locarg'};
                    534: 	    if (!$genpwd) { $genpwd=" "; }
                    535: 	}
1.12      www       536:         if (($amode) && ($genpwd)) {
1.26      matthew   537:           $r->print(&Apache::lonnet::modifystudent(
1.31    ! matthew   538:                       $ENV{'form.lcdomain'},$ENV{'form.cuname'},
1.26      matthew   539:                       $ENV{'form.cstid'},$amode,$genpwd,
                    540:  	              $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
                    541:                       $ENV{'form.clast'},$ENV{'form.cgen'},
                    542:                       $ENV{'form.csec'},$ENV{'form.enddate'},
1.31    ! matthew   543:                       $ENV{'form.startdate'},$ENV{'form.forceid'},
        !           544:                     $desiredhost));
        !           545:             &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
        !           546:                            $ENV{'request.course.id'},$ENV{'form.csec'});
1.12      www       547: 	} else {
1.26      matthew   548:            $r->print('Invalid login mode or password');    
1.12      www       549:         }          
                    550:     } else {
                    551:         $r->print('Invalid username or domain');
1.26      matthew   552:     }    
1.12      www       553: }
                    554: 
1.10      www       555: # ======================================================= Menu Phase Two Enroll
                    556: sub menu_phase_two_enroll {
                    557:     my $r=shift;
1.26      matthew   558:     my ($krbdefdom) = $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1.11      www       559:     $krbdefdom=~tr/a-z/A-Z/;
1.26      matthew   560:     my $today    = time;
                    561:     my $halfyear = $today+15552000;
1.11      www       562:     my $defdom=$r->dir_config('lonDefDomain');
1.24      albertel  563:     my $javascript_validations=&javascript_validations($krbdefdom);
1.28      matthew   564:     # Set up authentication forms
                    565:     my %param = ( formname => 'document.studentform');
                    566:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
                    567:     my $intform = &Apache::loncommon::authform_internal(%param);
                    568:     my $locform = &Apache::loncommon::authform_local(%param);
1.29      matthew   569:     # Set up domain selection form
1.31    ! matthew   570:     my $domform = &domain_form($defdom);
1.28      matthew   571:     # Print it all out
1.11      www       572:     $r->print(<<ENDSENROLL);
1.28      matthew   573: <script type="text/javascript" language="Javascript">
1.12      www       574: function verify(vf) {
                    575:     var founduname=0;
                    576:     var foundpwd=0;
                    577:     var foundname=0;
                    578:     var foundid=0;
                    579:     var foundsec=0;
                    580:     var tw;
1.26      matthew   581:     if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') && 
1.31    ! matthew   582: 	(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
1.12      www       583:         founduname=1;
                    584:     }
1.14      harris41  585:     if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
1.26      matthew   586: 	(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
1.12      www       587:         foundname=1;
                    588:     }
1.14      harris41  589:     if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
1.12      www       590:         foundsec=1;
                    591:     }
1.14      harris41  592:     if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
1.12      www       593: 	foundid=1;
                    594:     }
                    595:     if (founduname==0) {
                    596: 	alert('You need to specify at least the username and domain fields');
                    597:         return;
                    598:     }
1.24      albertel  599:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
1.12      www       600: }
                    601: 
1.24      albertel  602: $javascript_validations
1.12      www       603: 
1.24      albertel  604: function clearpwd(vf) {
                    605:     //nothing else needs clearing
1.15      albertel  606: }
                    607: 
1.12      www       608: </script>
1.11      www       609: <h3>Personal Data</h3>
1.26      matthew   610: First Name:  <input type="text" name="cfirst"  size="15"><br>
                    611: Middle Name: <input type="text" name="cmiddle" size="15"><br>
                    612: Last Name:   <input type="text" name="clast"   size="15"><br>
                    613: Generation:  <input type="text" name="cgen"    size="5"> 
1.11      www       614: 
1.26      matthew   615: <p>ID/Student Number: <input type="text" name="cstid" size="10"></p>
1.11      www       616: 
1.26      matthew   617: <p>Group/Section: <input type=text name=csec size=5></p>
1.11      www       618: 
1.12      www       619: <h3>Login Data</h3>
1.26      matthew   620: <p>Username: <input type="text" name="cuname"  size="15"></p>
1.29      matthew   621: <p>Domain:   $domform</p>
1.26      matthew   622: <p>Note: login settings below  will not take effect if the user already exists
                    623: </p><p>
1.28      matthew   624: $krbform
1.26      matthew   625: </p><p>
1.28      matthew   626: $intform
1.26      matthew   627: </p><p>
1.28      matthew   628: $locform
1.26      matthew   629: </p><p>
1.11      www       630: <h3>Starting and Ending Dates</h3>
                    631: <input type="hidden" value='' name="pres_value">
                    632: <input type="hidden" value='' name="pres_type">
                    633: <input type="hidden" value='' name="pres_marker">
                    634: <input type="hidden" value='$today' name=startdate>
                    635: <input type="hidden" value='$halfyear' name=enddate>
1.26      matthew   636: </p><p>
1.11      www       637: <a 
                    638:  href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
1.26      matthew   639: >Set Starting Date</a>
                    640: </p><p>
1.11      www       641: <a 
                    642:  href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
1.26      matthew   643: >Set Ending Date</a>
                    644: </p><p>
1.18      www       645: <h3>ID/Student Number</h3>
1.26      matthew   646: <input type="checkbox" name="forceid" value="yes"> 
1.18      www       647: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1.19      www       648: (only do if you know what you are doing)<p>
1.26      matthew   649: <input type="button" onClick="verify(this.form)" value="Enroll as student"><br>
                    650: <input type="hidden" name="phase" value="five">
                    651: </p>
1.11      www       652: ENDSENROLL
1.10      www       653: }
                    654: 
1.26      matthew   655: # =================================================== get the current classlist
                    656: sub get_current_classlist {
                    657:     my ($domain,$identifier) = @_;
                    658:     # domain is the domain the class is being run in
                    659:     # identifier is the internal, unique identifier for the class.
                    660:     my %currentlist=();
                    661:     my $now=time;
                    662:     my %results=&Apache::lonnet::dump('classlist',$domain,$identifier);
                    663:     my ($tmp) = keys(%results);
                    664:     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
                    665:         foreach my $student (keys(%results)) {
                    666:             # Extract the start and end dates
                    667:             my ($end,$start)=split(/\:/,$results{$student});
                    668:             # If the class isn't over, put it in the list
                    669:             unless (($end) && ($now>$end)) { 
                    670:                 $currentlist{$student}=1;
                    671:             }
                    672:         }
1.27      matthew   673:         return (undef,%currentlist);
1.26      matthew   674:     } else {
1.27      matthew   675:         return ($tmp,undef);
1.26      matthew   676:     }
                    677: }
                    678: 
1.10      www       679: # ========================================================= Menu Phase Two Drop
                    680: sub menu_phase_two_drop {
                    681:     my $r=shift;
1.11      www       682:     my $cid=$ENV{'request.course.id'};
1.27      matthew   683:     my ($error,%currentlist)=&get_current_classlist($ENV{'course.'.$cid.'.domain'},
1.26      matthew   684:                                            $ENV{'course.'.$cid.'.num'});
1.27      matthew   685:     if (defined($error)) {
                    686:         $r->print('<pre>ERROR:$error</pre>');
                    687:     }
1.26      matthew   688:     if (!defined(%currentlist)) { 
1.27      matthew   689:         $r->print("There are no students currently enrolled.\n");
1.26      matthew   690:     } else {
                    691:         # Print out the available choices
1.25      matthew   692:         &show_drop_list($r,%currentlist);
                    693:     }
1.11      www       694: }
                    695: 
                    696: # =================================================== Show student list to drop
                    697: sub show_drop_list {
                    698:     my ($r,%currentlist)=@_;
                    699:     my $cid=$ENV{'request.course.id'};
1.26      matthew   700:     $r->print(<<'END');
                    701: <input type="hidden" name="phase" value="four">
                    702: <table border=2>
                    703: <tr><th>&nbsp;</th><th>username</th><th>domain</th>
                    704: <th>ID</th><th>student name</th><th>generation</th>
                    705: <th>section</th></tr>
                    706: END
1.25      matthew   707:     foreach (sort keys %currentlist) {
                    708:         my ($sname,$sdom)=split(/\:/,$_);
                    709:         my %reply=&Apache::lonnet::idrget($sdom,$sname);
                    710:         my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
1.26      matthew   711:         my %info=&Apache::lonnet::get('environment',
                    712:                                       ['firstname','middlename',
                    713:                                        'lastname','generation'],
                    714:                                       $sdom, $sname);
                    715:         my ($tmp) = keys(%info);
                    716:         if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
                    717:             $r->print('<tr><td colspan="7"><font color="red">'.
                    718:                       'Internal error: unable to get environment '.
                    719:                       'for '.$sname.' in domain '.$sdom.'</font></td></tr>');
                    720:         } else {
                    721:             $r->print(<<"END");
                    722: <tr>
                    723:     <td><input type="checkbox" name="droplist" value="$_"></td>
                    724:     <td>$sname</td>
                    725:     <td>$sdom</td>
                    726:     <td>$reply{$sname}</td>
                    727:     <td>$info{'lastname'}, $info{'firstname'} $info{'middlename'}</td>
                    728:     <td>$info{'generation'}</td>
                    729:     <td>$ssec</td>
                    730: </tr>
                    731: END
                    732:         }
1.25      matthew   733:     }
                    734:     $r->print('</table><br>');
                    735:     $r->print('<input type=submit value="Drop Students">');
1.10      www       736: }
                    737: 
                    738: # ================================================= Drop/Add from uploaded file
                    739: sub upfile_drop_add {
                    740:     my $r=shift;
1.24      albertel  741:     &Apache::loncommon::load_tmp_file($r);
                    742:     my @studentdata=&Apache::loncommon::upfile_record_sep();
1.26      matthew   743:     my @keyfields = split(/\,/,$ENV{'form.keyfields'});
                    744:     my $cid = $ENV{'request.course.id'};
1.25      matthew   745:     my %fields=();
1.26      matthew   746:     for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
1.25      matthew   747:         if ($ENV{'form.upfile_associate'} eq 'reverse') {
                    748:             if ($ENV{'form.f'.$i} ne 'none') {
                    749:                 $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
                    750:             }
                    751:         } else {
                    752:             $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
                    753:         }
                    754:     }
1.26      matthew   755:     #
                    756:     my $startdate = $ENV{'form.startdate'};
                    757:     my $enddate   = $ENV{'form.enddate'};
1.25      matthew   758:     if ($startdate=~/\D/) { $startdate=''; }
1.26      matthew   759:     if ($enddate=~/\D/)   { $enddate=''; }
1.31    ! matthew   760:     # Determine domain and desired host (home server)
1.25      matthew   761:     my $domain=$ENV{'form.lcdomain'};
1.31    ! matthew   762:     my $desiredhost = $ENV{'form.lcserver'};
        !           763:     if (lc($desiredhost) eq 'default') {
        !           764:         $desiredhost = undef;
        !           765:     } else {
        !           766:         my %home_servers = &Apache::loncommon::get_home_servers($domain);
        !           767:         if (! exists($home_servers{$desiredhost})) {
        !           768:             $r->print('<font color="#ff0000">Error:</font>'.
        !           769:                       'Invalid home server specified');
        !           770:             return;
        !           771:         }
        !           772:     }
1.26      matthew   773:     # Determine authentication mechanism
                    774:     my $amode  = '';
                    775:     my $genpwd = '';
1.25      matthew   776:     if ($ENV{'form.login'} eq 'krb') {
                    777:         $amode='krb4';
1.28      matthew   778:         $genpwd=$ENV{'form.krbarg'};
1.25      matthew   779:     } elsif ($ENV{'form.login'} eq 'int') {
                    780:         $amode='internal';
1.28      matthew   781:         if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
                    782:             $genpwd=$ENV{'form.intarg'};
1.25      matthew   783:         }
                    784:     } elsif ($ENV{'form.login'} eq 'loc') {
                    785:         $amode='localauth';
                    786:         if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
                    787:             $genpwd=$ENV{'form.locarg'};
                    788:         }
                    789:     }
                    790:     unless (($domain=~/\W/) || ($amode eq '')) {
1.26      matthew   791:         #######################################
                    792:         ##         Enroll Students           ##
                    793:         #######################################
1.25      matthew   794:         $r->print('<h3>Enrolling Students</h3>');
                    795:         my $count=0;
                    796:         my $flushc=0;
                    797:         my %student=();
1.26      matthew   798:         # Get new classlist
1.25      matthew   799:         foreach (@studentdata) {
                    800:             my %entries=&Apache::loncommon::record_sep($_);
1.26      matthew   801:             # Determine student name
1.25      matthew   802:             unless (($entries{$fields{'username'}} eq '') ||
                    803:                     (!defined($entries{$fields{'username'}}))) {
1.26      matthew   804:                 my ($fname, $mname, $lname,$gen) = ('','','','');
1.25      matthew   805:                 if (defined($fields{'names'})) {
1.26      matthew   806:                     ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
                    807:                                             /([^\,]+)\,\s*(\w+)\s*(.*)$/);
1.25      matthew   808:                 } else {
                    809:                     if (defined($fields{'fname'})) {
                    810:                         $fname=$entries{$fields{'fname'}};
                    811:                     }
                    812:                     if (defined($fields{'mname'})) {
                    813:                         $mname=$entries{$fields{'mname'}};
                    814:                     }
                    815:                     if (defined($fields{'lname'})) {
                    816:                         $lname=$entries{$fields{'lname'}};
                    817:                     }
                    818:                     if (defined($fields{'gen'})) {
                    819:                         $gen=$entries{$fields{'gen'}};
                    820:                     }
                    821:                 }
                    822:                 if ($entries{$fields{'username'}}=~/\W/) {
                    823:                     $r->print('<p><b>Unacceptable username: '.
1.10      www       824:                               $entries{$fields{'username'}}.' for user '.
1.4       www       825:                               $fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
1.25      matthew   826:                 } else {
1.26      matthew   827:                     # determine section number
1.25      matthew   828:                     my $sec='';
                    829:                     my $username=$entries{$fields{'username'}};
                    830:                     if (defined($fields{'sec'})) {
                    831:                         if (defined($entries{$fields{'sec'}})) {
                    832:                             $sec=$entries{$fields{'sec'}};
                    833:                         }
                    834:                     }
1.26      matthew   835:                     # determine student id number
1.25      matthew   836:                     my $id='';
                    837:                     if (defined($fields{'id'})) {
                    838:                         if (defined($entries{$fields{'id'}})) {
                    839:                             $id=$entries{$fields{'id'}};
                    840:                         }
                    841:                         $id=~tr/A-Z/a-z/;
                    842:                     }
1.26      matthew   843:                     # determine student password
1.25      matthew   844:                     my $password='';
                    845:                     if ($genpwd) { 
                    846:                         $password=$genpwd; 
                    847:                     } else {
                    848:                         if (defined($fields{'ipwd'})) {
                    849:                             if ($entries{$fields{'ipwd'}}) {
                    850:                                 $password=$entries{$fields{'ipwd'}};
                    851:                             }
                    852:                         }
                    853:                     }
                    854:                     if ($password) {
                    855:                         my $reply=&Apache::lonnet::modifystudent
                    856:                             ($domain,$username,$id,$amode,$password,
                    857:                              $fname,$mname,$lname,$gen,$sec,$enddate,
1.31    ! matthew   858:                              $startdate,$ENV{'form.forceid'},$desiredhost);
        !           859:                         &modifystudent($domain,$username,$cid,$sec);
1.26      matthew   860:                         if ($reply ne 'ok') {
                    861:                             $r->print('<p><b>'.
                    862:                                       'Error enrolling '.$username.': '.
                    863:                                       $reply.'</b></p>');
1.10      www       864:          		} else {
1.7       www       865:                             $count++; $flushc++;
                    866:                             $student{$username}=1;
1.6       www       867:                             $r->print('. ');
1.7       www       868:                             if ($flushc>15) {
                    869: 				$r->rflush;
                    870:                                 $flushc=0;
                    871:                             }
1.6       www       872:                         }
1.25      matthew   873:                     } else {
                    874:                         $r->print("<p><b>No password for $username</b><p>");
                    875:                     }
                    876:                 }
1.26      matthew   877:             }
                    878:         } # end of foreach (@studentdata)
1.25      matthew   879:         $r->print('<p>Processed Students: '.$count);
1.26      matthew   880:         #####################################
                    881:         #           Drop students           #
                    882:         #####################################
1.25      matthew   883:         if ($ENV{'form.fullup'} eq 'yes') {
                    884:             $r->print('<h3>Dropping Students</h3>');
1.26      matthew   885:             #  Get current classlist
1.27      matthew   886:             my ($error,%currentlist)=&get_current_classlist
1.26      matthew   887:                 ($ENV{'course.'.$cid.'.domain'},
                    888:                  $ENV{'course.'.$cid.'.num'});
1.27      matthew   889:             if (defined($error)) {
                    890:                 $r->print('<pre>ERROR:$error</pre>');
                    891:             }
1.26      matthew   892:             if (defined(%currentlist)) {
                    893:                 # Drop the students
1.25      matthew   894:                 foreach (@studentdata) {
                    895:                     my %entries=&Apache::loncommon::record_sep($_);
                    896:                     unless (($entries{$fields{'username'}} eq '') ||
                    897:                             (!defined($entries{$fields{'username'}}))) {
1.26      matthew   898:                         delete($currentlist{$entries{$fields{'username'}}.
                    899:                                                 ':'.$domain});
1.25      matthew   900:                     }
                    901:                 }
1.26      matthew   902:                 # Print out list of dropped students
1.25      matthew   903:                 &show_drop_list($r,%currentlist);
                    904:             } else {
1.27      matthew   905:                 $r->print("There are no students currently enrolled.\n");
1.25      matthew   906:             }
                    907:         }
1.26      matthew   908:     } # end of unless
1.10      www       909: }
                    910: 
1.11      www       911: # ================================================================== Phase four
                    912: sub drop_student_list {
                    913:     my $r=shift;
                    914:     my $count=0;
1.26      matthew   915:     foreach (@{$ENV{'form.droplist'}}) {
                    916:         my ($uname,$udom)=split(/\:/,$_);
                    917:         &modifystudent($udom,$uname,$ENV{'request.course.id'});
                    918:         $r->print('Dropped '.$uname.' at '.$udom.'<br>');
                    919:         $count++;
1.20      harris41  920:     }
1.11      www       921:     $r->print('<p><b>Dropped '.$count.' student(s).</b>');
                    922:     $r->print('<p>Re-enrollment will re-activate data.');
                    923: }
                    924: 
1.10      www       925: # ================================================================ Main Handler
                    926: sub handler {
1.26      matthew   927:     my $r=shift;
                    928:     if ($r->header_only) {
                    929:         $r->content_type('text/html');
                    930:         $r->send_http_header;
                    931:         return OK;
                    932:     }
                    933:     #  Needs to be in a course
                    934:     if (($ENV{'request.course.fn'}) && 
                    935:         (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) {
                    936:         # Start page
                    937:         $r->content_type('text/html');
                    938:         $r->send_http_header;
1.27      matthew   939:         $r->print(&header());
1.26      matthew   940:         # Phase one, initial screen
                    941:         unless ($ENV{'form.phase'}) {
                    942:             &menu_phase_one($r);
                    943:         }
                    944:         # Phase two
                    945:         if ($ENV{'form.associate'} eq 'Reverse Association') {
                    946:             $ENV{'form.phase'} = 'two';
                    947:             if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
                    948:                 $ENV{'form.upfile_associate'} = 'reverse';
                    949:             } else {
                    950:                 $ENV{'form.upfile_associate'} = 'forward';
                    951:             }
                    952:         }
                    953:         if ($ENV{'form.phase'} eq 'two') {
                    954:             if ($ENV{'form.fileupload'}) {
                    955:                 &menu_phase_two_upload($r);
                    956:             } elsif ($ENV{'form.enroll'}) {
                    957:                 &menu_phase_two_enroll($r);
                    958:             } elsif ($ENV{'form.drop'}) {
                    959:                 &menu_phase_two_drop($r);
                    960:             }
                    961:         }
                    962:         # Phase three
                    963:         if ($ENV{'form.phase'} eq 'three') {
                    964:             if ($ENV{'form.datatoken'}) {
                    965:                 &upfile_drop_add($r);
                    966:             }
                    967:         }
                    968:         # Phase four
                    969:         if ($ENV{'form.phase'} eq 'four') {
                    970:             &drop_student_list($r);
                    971:         }
                    972:         # Phase five
                    973:         if ($ENV{'form.phase'} eq 'five') {
                    974:             &enroll_single_student($r);
                    975:         }
                    976:          # End
                    977:         $r->print('</form></body></html>');
                    978:     } else {
                    979:         # Not in a course, or not allowed to modify parms
                    980:         $ENV{'user.error.msg'}=
                    981:             "/adm/dropadd:cst:0:0:Cannot drop or add students";
                    982:         return HTTP_NOT_ACCEPTABLE; 
                    983:     }
                    984:     return OK;
1.1       www       985: }
                    986: 
                    987: 1;
                    988: __END__
                    989: 

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