Annotation of loncom/interface/londropadd.pm, revision 1.66

1.1       www         1: # The LearningOnline Network with CAPA
                      2: # Handler to drop and add students in courses 
                      3: #
1.66    ! matthew     4: # $Id: londropadd.pm,v 1.65 2003/04/30 15:49:45 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: #
1.50      matthew    34: ###############################################################
                     35: ###############################################################
1.1       www        36: 
                     37: package Apache::londropadd;
                     38: 
                     39: use strict;
1.24      albertel   40: use Apache::lonnet();
                     41: use Apache::loncommon();
1.50      matthew    42: use Apache::lonhtmlcommon();
1.1       www        43: use Apache::Constants qw(:common :http REDIRECT);
1.60      matthew    44: use Spreadsheet::WriteExcel;
1.1       www        45: 
1.50      matthew    46: ###############################################################
                     47: ###############################################################
1.10      www        48: sub header {
1.46      www        49:     my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager');
1.27      matthew    50:     return(<<ENDHEAD);
1.1       www        51: <html>
                     52: <head>
1.40      matthew    53: <title>LON-CAPA Enrollment Manager</title>
1.1       www        54: </head>
1.46      www        55: $bodytag
1.40      matthew    56: <form method="post" enctype="multipart/form-data"  
                     57:       action="/adm/dropadd" name="studentform">
1.1       www        58: ENDHEAD
1.10      www        59: }
                     60: 
1.50      matthew    61: ###############################################################
                     62: ###############################################################
                     63: # Drop student from all sections of a course, except optional $csec
1.26      matthew    64: sub modifystudent {
1.33      matthew    65:     my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
1.26      matthew    66:     # if $csec is undefined, drop the student from all the courses matching
                     67:     # this one.  If $csec is defined, drop them from all other sections of 
                     68:     # this course and add them to section $csec
1.25      matthew    69:     $courseid=~s/\_/\//g;
                     70:     $courseid=~s/^(\w)/\/$1/;
1.26      matthew    71:     my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
                     72:     my ($tmp) = keys(%roles);
                     73:     # Bail out if we were unable to get the students roles
1.35      matthew    74:     return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
1.26      matthew    75:     # Go through the roles looking for enrollment in this course
1.35      matthew    76:     my $result = '';
1.26      matthew    77:     foreach my $course (keys(%roles)) {
1.35      matthew    78:         if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
1.26      matthew    79:             # We are in this course
1.25      matthew    80:             my $section=$1;
1.26      matthew    81:             $section='' if ($course eq $courseid.'_st');
1.35      matthew    82:             if ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
1.27      matthew    83:                 my (undef,$end,$start)=split(/\_/,$roles{$course});
1.25      matthew    84:                 my $now=time;
1.50      matthew    85:                 # if this is an active role 
1.27      matthew    86:                 if (!($start && ($now<$start)) || !($end && ($now>$end))) {
1.25      matthew    87:                     my $reply=&Apache::lonnet::modifystudent
1.33      matthew    88:                         ($udom,$unam,'','','','','','','',
                     89:                          $section,time,undef,undef,$desiredhost);
1.35      matthew    90:                     $result .= $reply.':';
1.25      matthew    91:                 }
1.10      www        92:             }
                     93:         }
1.20      harris41   94:     }
1.35      matthew    95:     if ($result eq '') {
1.62      matthew    96:         $result = 'Unable to find section for this student';
1.37      matthew    97:     } else {
                     98:         $result =~ s/(ok:)+/ok/g;
1.35      matthew    99:     }
                    100:     return $result;
1.10      www       101: }
                    102: 
1.50      matthew   103: ###############################################################
                    104: ###############################################################
                    105: # build a domain and server selection form
1.31      matthew   106: sub domain_form {
                    107:     my ($defdom) = @_;
                    108:     # Set up domain and server selection forms
                    109:     #
                    110:     # Get the domains
                    111:     my @domains = &Apache::loncommon::get_domains();
                    112:     # build up the menu information to be passed to 
                    113:     # &Apache::loncommon::linked_select_forms
                    114:     my %select_menus;
                    115:     foreach my $dom (@domains) {
                    116:         # set up the text for this domain
                    117:         $select_menus{$dom}->{'text'}= $dom;
                    118:         # we want a choice of 'default' as the default in the second menu
                    119:         $select_menus{$dom}->{'default'}= 'default';
                    120:         $select_menus{$dom}->{'select2'}->{'default'} = 'default';
                    121:         # Now build up the other items in the second menu
1.45      matthew   122:         my %servers = &Apache::loncommon::get_library_servers($dom);
1.31      matthew   123:         foreach my $server (keys(%servers)) {
                    124:             $select_menus{$dom}->{'select2'}->{$server} 
                    125:                                             = "$server $servers{$server}";
                    126:         }
                    127:     }
                    128:     my $result  = &Apache::loncommon::linked_select_forms
                    129:         ('studentform',' with home server ',$defdom,
                    130:          'lcdomain','lcserver',\%select_menus);
                    131:     return $result;
                    132: }
                    133: 
1.50      matthew   134: ###############################################################
                    135: ###############################################################
                    136: #  Menu Phase One
                    137: sub print_main_menu {
1.10      www       138:     my $r=shift;
1.48      matthew   139:     $r->print(<<END);
                    140: <p>
1.50      matthew   141: <font size="+1">
                    142:     <a href="/adm/dropadd?action=upload">Upload a course list</a>
                    143: </font>
                    144: </p><p>
                    145: <font size="+1">
                    146:     <a href="/adm/dropadd?action=enrollstudent">Enroll a single student</a>
                    147: </font>
1.48      matthew   148: </p><p>
1.50      matthew   149: <font size="+1">
                    150:     <a href="/adm/dropadd?action=modifystudent">Modify student data</a>
                    151: </font>
1.48      matthew   152: </p><p>
1.50      matthew   153: <font size="+1">
                    154:     <a href="/adm/dropadd?action=classlist">View Classlist</a>
                    155: </font>
1.48      matthew   156: </p><p>
1.50      matthew   157: <font size="+1">
                    158:     <a href="/adm/dropadd?action=drop">Drop Students</a>
                    159: </font>
1.48      matthew   160: </p>
                    161: END
1.10      www       162: }
                    163: 
1.50      matthew   164: ###############################################################
                    165: ###############################################################
                    166: sub print_upload_manager_header {
1.23      albertel  167:     my ($r,$datatoken,$distotal,$krbdefdom)=@_;
1.24      albertel  168:     my $javascript;
1.50      matthew   169:     if (! exists($ENV{'form.upfile_associate'})) {
                    170:         $ENV{'form.upfile_associate'} = 'forward';
                    171:     }
                    172:     if ($ENV{'form.associate'} eq 'Reverse Association') {
                    173:         if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
                    174:             $ENV{'form.upfile_associate'} = 'reverse';
                    175:         } else {
                    176:             $ENV{'form.upfile_associate'} = 'forward';
                    177:         }
                    178:     }
1.24      albertel  179:     if ($ENV{'form.upfile_associate'} eq 'reverse') {
1.50      matthew   180: 	$javascript=&upload_manager_javascript_reverse_associate();
1.24      albertel  181:     } else {
1.50      matthew   182: 	$javascript=&upload_manager_javascript_forward_associate();
1.24      albertel  183:     }
                    184:     my $javascript_validations=&javascript_validations($krbdefdom);
1.10      www       185:     $r->print(<<ENDPICK);
1.40      matthew   186: <h3>Uploading Class List</h3>
1.2       www       187: <hr>
                    188: <h3>Identify fields</h3>
1.22      albertel  189: Total number of records found in file: $distotal <hr />
                    190: Enter as many fields as you can. The system will inform you and bring you back
                    191: to this page if the data selected is insufficient to run your class.<hr />
1.36      albertel  192: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1.50      matthew   193: <input type="hidden" name="action"     value="upload" />
                    194: <input type="hidden" name="state"      value="got_file" />
1.36      albertel  195: <input type="hidden" name="associate"  value="" />
1.26      matthew   196: <input type="hidden" name="datatoken"  value="$datatoken" />
1.24      albertel  197: <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
                    198: <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
1.26      matthew   199: <input type="hidden" name="upfile_associate" 
                    200:                                        value="$ENV{'form.upfile_associate'}" />
1.24      albertel  201: <hr />
1.28      matthew   202: <script type="text/javascript" language="Javascript">
1.24      albertel  203: $javascript
                    204: $javascript_validations
                    205: </script>
                    206: ENDPICK
                    207: }
                    208: 
1.50      matthew   209: ###############################################################
                    210: ###############################################################
1.24      albertel  211: sub javascript_validations {
                    212:     my ($krbdefdom)=@_;
1.28      matthew   213:     my %param = ( formname => 'studentform',
                    214:                   kerb_def_dom => $krbdefdom );
                    215:     my $authheader = &Apache::loncommon::authform_header(%param);
1.65      matthew   216:     my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
1.24      albertel  217:     return (<<ENDPICK);
                    218: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec) {
1.3       www       219:     var foundatype=0;
                    220:     var message='';
                    221:     if (founduname==0) {
1.28      matthew   222: 	alert('You need to specify the username field');
1.3       www       223:         return;
                    224:     }
1.61      matthew   225:     // alert('current.radiovalue = '+current.radiovalue);
1.29      matthew   226:     if (current.radiovalue == null || current.radiovalue == 'nochange') {
1.28      matthew   227:         // They did not check any of the login radiobuttons.
                    228:         alert('You must choose an authentication type');
                    229:         return;
                    230:     }
                    231:     foundatype=1;
1.29      matthew   232:     if (current.argfield == null || current.argfield == '') {
1.28      matthew   233:         var alertmsg = '';
1.29      matthew   234:         switch (current.value) {
1.28      matthew   235:             case 'krb': 
                    236:                 alertmsg = 'You need to specify the Kerberos domain';
                    237:                 break;
                    238:             case 'loc':
                    239:             case 'fsys':
                    240:                 alertmsg = 'You need to specify the initial password';
                    241:                 break;
                    242:             case 'fsys':
                    243:                 alertmsg = '';
                    244:                 break;
                    245:             default: 
                    246:                 alertmsg = '';
1.3       www       247:         }
1.28      matthew   248:         if (alertmsg != '') {
                    249:             alert(alertmsg);
1.3       www       250:             return;
                    251:         }
                    252:     }
1.28      matthew   253: 
1.3       www       254:     if (foundname==0) { message='No name fields specified. '; }
                    255:     if (foundid==0) { message+='No ID or student number field specified. '; }
                    256:     if (foundsec==0) { message+='No section or group field specified. '; }
1.4       www       257:     if (vf.startdate.value=='') {
                    258: 	message+='No starting date set. ';
1.3       www       259:     }
1.4       www       260:     if (vf.enddate.value=='') {
                    261:         message+='No ending date set. ';
                    262:     }
                    263:     if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
1.10      www       264:        if (Math.round(vf.enddate.value)<Math.round(vf.startdate.value)) {
1.4       www       265:           alert('Ending date is before starting date');
                    266:           return;
                    267:        }
                    268:     }
                    269:     if (message!='') {
                    270:        message+='Continue enrollment?';
                    271:        if (confirm(message)) {
                    272: 	  pclose();
1.50      matthew   273:           vf.state.value='enrolling';
1.4       www       274: 	  vf.submit();
                    275:        }
                    276:     } else {
                    277:       pclose();
1.50      matthew   278:       vf.state.value='enrolling';
1.4       www       279:       vf.submit();
1.24      albertel  280:     }
1.3       www       281: }
                    282: 
                    283: 
1.4       www       284:     function pclose() {
                    285:         parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
                    286:                  "height=350,width=350,scrollbars=no,menubar=no");
                    287:         parmwin.close();
                    288:     }
                    289: 
1.65      matthew   290:     $pjump_def
1.4       www       291: 
                    292:     function dateset() {
                    293:         if (document.studentform.pres_marker.value=='end') {
                    294:            document.studentform.enddate.value=
                    295: 	       document.studentform.pres_value.value;
                    296:         }
                    297:         if (document.studentform.pres_marker.value=='start') {
                    298:            document.studentform.startdate.value=
                    299: 	       document.studentform.pres_value.value;
                    300:         }
                    301:         pclose();
                    302:     }
1.3       www       303: 
1.28      matthew   304: $authheader
1.24      albertel  305: ENDPICK
1.28      matthew   306: 
1.24      albertel  307: }
                    308: 
1.50      matthew   309: ###############################################################
                    310: ###############################################################
                    311: sub upload_manager_javascript_forward_associate {
1.24      albertel  312:     return(<<ENDPICK);
                    313: function verify(vf) {
                    314:     var founduname=0;
                    315:     var foundpwd=0;
                    316:     var foundname=0;
                    317:     var foundid=0;
                    318:     var foundsec=0;
                    319:     var tw;
                    320:     for (i=0;i<=vf.nfields.value;i++) {
                    321:         tw=eval('vf.f'+i+'.selectedIndex');
                    322:         if (tw==1) { founduname=1; }
                    323:         if ((tw>=2) && (tw<=6)) { foundname=1; }
                    324:         if (tw==7) { foundid=1; }
                    325:         if (tw==8) { foundsec=1; }
                    326:         if (tw==9) { foundpwd=1; }
                    327:     }
                    328:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
                    329: }
                    330: 
1.49      matthew   331: //
                    332: // vf = this.form
                    333: // tf = column number
                    334: //
                    335: // values of nw
                    336: //
                    337: // 0 = none
                    338: // 1 = username
                    339: // 2 = names (lastname, firstnames)
                    340: // 3 = fname (firstname)
                    341: // 4 = mname (middlename)
                    342: // 5 = lname (lastname)
                    343: // 6 = gen   (generation)
                    344: // 7 = id
                    345: // 8 = section
                    346: // 9 = ipwd  (password)
                    347: //
1.24      albertel  348: function flip(vf,tf) {
                    349:    var nw=eval('vf.f'+tf+'.selectedIndex');
                    350:    var i;
1.49      matthew   351:    // make sure no other columns are labeled the same as this one
1.24      albertel  352:    for (i=0;i<=vf.nfields.value;i++) {
                    353:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
                    354:           eval('vf.f'+i+'.selectedIndex=0;')
                    355:       }
                    356:    }
1.49      matthew   357:    // If we set this to 'lastname, firstnames', clear out all the ones
                    358:    // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
1.24      albertel  359:    if (nw==2) {
                    360:       for (i=0;i<=vf.nfields.value;i++) {
                    361:          if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
                    362:              (eval('vf.f'+i+'.selectedIndex')<=6)) {
                    363:              eval('vf.f'+i+'.selectedIndex=0;')
                    364:          }
                    365:       }
                    366:    }
1.49      matthew   367:    // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
                    368:    // clear out any that are set to 'lastname, firstnames' (2)
1.24      albertel  369:    if ((nw>=3) && (nw<=6)) {
                    370:       for (i=0;i<=vf.nfields.value;i++) {
                    371:          if (eval('vf.f'+i+'.selectedIndex')==2) {
                    372:              eval('vf.f'+i+'.selectedIndex=0;')
                    373:          }
                    374:       }
                    375:    }
1.49      matthew   376:    // If we set the password, make the password form below correspond to 
                    377:    // the new value.
1.24      albertel  378:    if (nw==9) {
1.28      matthew   379:        changed_radio('int',document.studentform);
                    380:        set_auth_radio_buttons('int',document.studentform);
                    381:        vf.intarg.value='';
                    382:        vf.krbarg.value='';
1.24      albertel  383:        vf.locarg.value='';
                    384:    }
                    385: }
                    386: 
                    387: function clearpwd(vf) {
                    388:     var i;
                    389:     for (i=0;i<=vf.nfields.value;i++) {
                    390:         if (eval('vf.f'+i+'.selectedIndex')==9) {
                    391:             eval('vf.f'+i+'.selectedIndex=0;')
                    392:         }
                    393:     }
                    394: }
                    395: 
                    396: ENDPICK
                    397: }
                    398: 
1.50      matthew   399: ###############################################################
                    400: ###############################################################
                    401: sub upload_manager_javascript_reverse_associate {
1.24      albertel  402:     return(<<ENDPICK);
                    403: function verify(vf) {
                    404:     var founduname=0;
                    405:     var foundpwd=0;
                    406:     var foundname=0;
                    407:     var foundid=0;
                    408:     var foundsec=0;
                    409:     var tw;
                    410:     for (i=0;i<=vf.nfields.value;i++) {
                    411:         tw=eval('vf.f'+i+'.selectedIndex');
                    412:         if (i==0 && tw!=0) { founduname=1; }
                    413:         if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
                    414:         if (i==6 && tw!=0) { foundid=1; }
                    415:         if (i==7 && tw!=0) { foundsec=1; }
                    416:         if (i==8 && tw!=0) { foundpwd=1; }
                    417:     }
                    418:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
                    419: }
                    420: 
                    421: function flip(vf,tf) {
                    422:    var nw=eval('vf.f'+tf+'.selectedIndex');
                    423:    var i;
                    424:    // picked the all one one name field, reset the other name ones to blank
                    425:    if (tf==1 && nw!=0) {
                    426:       for (i=2;i<=5;i++) {
                    427:          eval('vf.f'+i+'.selectedIndex=0;')
                    428:       }
                    429:    }
                    430:    //picked one of the piecewise name fields, reset the all in
                    431:    //one field to blank
                    432:    if ((tf>=2) && (tf<=5) && (nw!=0)) {
                    433:       eval('vf.f1.selectedIndex=0;')
                    434:    }
                    435:    // intial password specified, pick internal authentication
                    436:    if (tf==8 && nw!=0) {
1.28      matthew   437:        changed_radio('int',document.studentform);
                    438:        set_auth_radio_buttons('int',document.studentform);
                    439:        vf.krbarg.value='';
                    440:        vf.intarg.value='';
1.24      albertel  441:        vf.locarg.value='';
                    442:    }
                    443: }
                    444: 
                    445: function clearpwd(vf) {
                    446:     var i;
                    447:     if (eval('vf.f8.selectedIndex')!=0) {
                    448:         eval('vf.f8.selectedIndex=0;')
                    449:     }
                    450: }
1.2       www       451: ENDPICK
1.23      albertel  452: }
1.10      www       453: 
1.50      matthew   454: ###############################################################
                    455: ###############################################################
                    456: sub print_upload_manager_footer {
1.23      albertel  457:     my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
1.64      albertel  458: 
                    459:     my ($krbdef,$krbdefdom) =
                    460:         &Apache::loncommon::get_kerberos_defaults($defdom);
                    461:     my %param = ( formname => 'document.studentform',
                    462:                   kerb_def_dom => $krbdefdom,
                    463:                   kerb_def_auth => $krbdef
                    464:                   );
1.28      matthew   465:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
                    466:     my $intform = &Apache::loncommon::authform_internal(%param);
                    467:     my $locform = &Apache::loncommon::authform_local(%param);
1.31      matthew   468:     my $domform = &domain_form($defdom);
1.23      albertel  469:     $r->print(<<ENDPICK);
1.3       www       470: </table>
1.10      www       471: <input type=hidden name=nfields value=$i>
                    472: <input type=hidden name=keyfields value="$keyfields">
1.3       www       473: <h3>Login Type</h3>
1.15      albertel  474: <p>Note: this will not take effect if the user already exists</p>
                    475: <p>
1.28      matthew   476: $krbform
1.15      albertel  477: </p>
                    478: <p>
1.28      matthew   479: $intform
1.15      albertel  480: </p>
                    481: <p>
1.28      matthew   482: $locform
1.15      albertel  483: </p>
1.5       www       484: <h3>LON-CAPA Domain for Students</h3>
1.29      matthew   485: LON-CAPA domain: $domform <p>
1.5       www       486: <h3>Starting and Ending Dates</h3>
1.26      matthew   487: <input type="hidden" value=''          name="pres_value"  >
                    488: <input type="hidden" value=''          name="pres_type"   >
                    489: <input type="hidden" value=''          name="pres_marker" >
                    490: <input type="hidden" value='$today'    name="startdate"   >
                    491: <input type="hidden" value='$halfyear' name="enddate"     >
1.4       www       492: <a 
                    493:  href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
                    494: >Set Starting Date</a><p>
                    495: 
                    496: <a 
                    497:  href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
                    498: >Set Ending Date</a><p>
1.5       www       499: <h3>Full Update</h3>
                    500: <input type=checkbox name=fullup value=yes> Full update 
1.11      www       501: (also print list of users not enrolled anymore)<p>
1.18      www       502: <h3>ID/Student Number</h3>
                    503: <input type=checkbox name=forceid value=yes> 
                    504: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1.19      www       505: (only do if you know what you are doing)<p>
1.36      albertel  506: <input type="button" onClick="javascript:verify(this.form)" value="Update Courselist" /><br />
1.50      matthew   507: Note: for large courses, this operation may be time consuming.
1.3       www       508: ENDPICK
1.23      albertel  509: }
1.24      albertel  510: 
1.23      albertel  511: # ======================================================= Menu Phase Two Upload
1.50      matthew   512: sub print_upload_manager_form {
1.23      albertel  513:     my $r=shift;
1.26      matthew   514: 
1.24      albertel  515:     my $datatoken;
                    516:     if (!$ENV{'form.datatoken'}) {
1.26      matthew   517:       $datatoken=&Apache::loncommon::upfile_store($r);
1.24      albertel  518:     } else {
1.26      matthew   519:       $datatoken=$ENV{'form.datatoken'};
                    520:       &Apache::loncommon::load_tmp_file($r);
1.24      albertel  521:     }
                    522:     my @records=&Apache::loncommon::upfile_record_sep();
1.23      albertel  523:     my $total=$#records;
                    524:     my $distotal=$total+1;
                    525:     my $today=time;
                    526:     my $halfyear=$today+15552000;
                    527:     my $defdom=$r->dir_config('lonDefDomain');
1.64      albertel  528:     my ($krbdef,$krbdefdom) =
                    529:         &Apache::loncommon::get_kerberos_defaults($defdom);
1.50      matthew   530:     &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
1.24      albertel  531:     my $i;
                    532:     my $keyfields;
1.23      albertel  533:     if ($total>=0) {
1.50      matthew   534: 	my @d=(['username','Username'],
                    535:                ['names','Last Name, First Names'],
                    536: 	       ['fname','First Name'],
                    537:                ['mname','Middle Names/Initials'],
                    538: 	       ['lname','Last Name'],
                    539:                ['gen','Generation'],
                    540: 	       ['id','ID/Student Number'],
                    541:                ['sec','Group/Section'],
1.24      albertel  542: 	       ['ipwd','Initial Password']);
                    543: 	if ($ENV{'form.upfile_associate'} eq 'reverse') {	
                    544: 	    &Apache::loncommon::csv_print_samples($r,\@records);
                    545: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
                    546: 	    foreach (@d) { $keyfields.=$_->[0].','; }
                    547: 	    chop($keyfields);
                    548: 	} else {
                    549: 	    unshift(@d,['none','']);
                    550: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
                    551: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
                    552: 	    $keyfields=join(',',sort(keys(%sone)));
1.23      albertel  553: 	}
                    554:     }
1.50      matthew   555:     &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
1.10      www       556: }
                    557: 
1.12      www       558: # ======================================================= Enroll single student
                    559: sub enroll_single_student {
                    560:     my $r=shift;
                    561:     $r->print('<h3>Enrolling Student</h3>');
1.54      matthew   562:     $r->print('<p>Enrolling '.$ENV{'form.cuname'}." \@ ".
1.34      matthew   563:               $ENV{'form.lcdomain'}.'</p>');
1.12      www       564:     if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
1.31      matthew   565:         ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
                    566:         # Deal with home server selection
                    567:         my $domain=$ENV{'form.lcdomain'};
                    568:         my $desiredhost = $ENV{'form.lcserver'};
                    569:         if (lc($desiredhost) eq 'default') {
                    570:             $desiredhost = undef;
                    571:         } else {
1.45      matthew   572:             my %home_servers =&Apache::loncommon::get_library_servers($domain);
1.31      matthew   573:             if (! exists($home_servers{$desiredhost})) {
                    574:                 $r->print('<font color="#ff0000">Error:</font>'.
                    575:                           'Invalid home server specified');
                    576:                 return;
                    577:             }
                    578:         }
1.34      matthew   579:         $r->print(" with server $desiredhost :") if (defined($desiredhost));
1.31      matthew   580:         # End of home server selection logic
1.12      www       581: 	my $amode='';
                    582:         my $genpwd='';
                    583:         if ($ENV{'form.login'} eq 'krb') {
1.47      albertel  584:            $amode='krb';
                    585: 	   $amode.=$ENV{'form.krbver'};
1.28      matthew   586:            $genpwd=$ENV{'form.krbarg'};
1.12      www       587:         } elsif ($ENV{'form.login'} eq 'int') {
1.26      matthew   588:            $amode='internal';
1.28      matthew   589:            $genpwd=$ENV{'form.intarg'};
1.15      albertel  590:         }  elsif ($ENV{'form.login'} eq 'loc') {
                    591: 	    $amode='localauth';
                    592: 	    $genpwd=$ENV{'form.locarg'};
                    593: 	    if (!$genpwd) { $genpwd=" "; }
                    594: 	}
1.34      matthew   595:         my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'},
                    596:                                                    $ENV{'form.lcdomain'});
                    597:         if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
1.55      matthew   598:             # Clean out any old roles the student has in this class.
1.33      matthew   599:             &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
                    600:                            $ENV{'request.course.id'},$ENV{'form.csec'},
                    601:                             $desiredhost);
1.55      matthew   602:             my $login_result = &Apache::lonnet::modifystudent
                    603:                 ($ENV{'form.lcdomain'},$ENV{'form.cuname'},
                    604:                  $ENV{'form.cstid'},$amode,$genpwd,
                    605:                  $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
                    606:                  $ENV{'form.clast'},$ENV{'form.cgen'},
                    607:                  $ENV{'form.csec'},$ENV{'form.enddate'},
                    608:                  $ENV{'form.startdate'},$ENV{'form.forceid'},
                    609:                  $desiredhost);
                    610:             if ($login_result =~ /^ok/) {
                    611:                 $r->print($login_result);
                    612:                 $r->print("<p> If active, the new role will be available ".
                    613:                           "when the student next logs in to LON-CAPA.</p>");
                    614:             } else {
                    615:                 $r->print("unable to enroll: ".$login_result);
                    616:             }
1.12      www       617: 	} else {
1.34      matthew   618:             $r->print('<p><font color="#ff0000">ERROR</font>&nbsp;'.
                    619:                       'Invalid login mode or password.  '.
                    620:                       'Unable to enroll '.$ENV{'form.cuname'}.'.</p>');
1.12      www       621:         }          
                    622:     } else {
                    623:         $r->print('Invalid username or domain');
1.26      matthew   624:     }    
1.12      www       625: }
                    626: 
1.10      www       627: # ======================================================= Menu Phase Two Enroll
1.50      matthew   628: sub print_enroll_single_student_form {
1.10      www       629:     my $r=shift;
1.40      matthew   630:     $r->print("<h3>Enroll One Student</h3>");
1.26      matthew   631:     my $today    = time;
                    632:     my $halfyear = $today+15552000;
1.11      www       633:     my $defdom=$r->dir_config('lonDefDomain');
1.64      albertel  634:     # Set up authentication forms
                    635:     my ($krbdef,$krbdefdom) =
                    636:         &Apache::loncommon::get_kerberos_defaults($defdom);
1.24      albertel  637:     my $javascript_validations=&javascript_validations($krbdefdom);
1.64      albertel  638:     my %param = ( formname => 'document.studentform',
                    639:                   kerb_def_dom => $krbdefdom,
                    640:                   kerb_def_auth => $krbdef
                    641:                   );
1.28      matthew   642:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
                    643:     my $intform = &Apache::loncommon::authform_internal(%param);
                    644:     my $locform = &Apache::loncommon::authform_local(%param);
1.29      matthew   645:     # Set up domain selection form
1.31      matthew   646:     my $domform = &domain_form($defdom);
1.28      matthew   647:     # Print it all out
1.50      matthew   648:     $r->print(<<END);
                    649: <input type="hidden" name="action" value="enrollstudent">
                    650: <input type="hidden" name="state"  value="done">
                    651: 
1.28      matthew   652: <script type="text/javascript" language="Javascript">
1.12      www       653: function verify(vf) {
                    654:     var founduname=0;
                    655:     var foundpwd=0;
                    656:     var foundname=0;
                    657:     var foundid=0;
                    658:     var foundsec=0;
                    659:     var tw;
1.26      matthew   660:     if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') && 
1.31      matthew   661: 	(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
1.12      www       662:         founduname=1;
                    663:     }
1.14      harris41  664:     if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
1.26      matthew   665: 	(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
1.12      www       666:         foundname=1;
                    667:     }
1.14      harris41  668:     if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
1.12      www       669:         foundsec=1;
                    670:     }
1.14      harris41  671:     if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
1.12      www       672: 	foundid=1;
                    673:     }
                    674:     if (founduname==0) {
                    675: 	alert('You need to specify at least the username and domain fields');
                    676:         return;
                    677:     }
1.24      albertel  678:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
1.12      www       679: }
                    680: 
1.24      albertel  681: $javascript_validations
1.12      www       682: 
1.24      albertel  683: function clearpwd(vf) {
                    684:     //nothing else needs clearing
1.15      albertel  685: }
                    686: 
1.12      www       687: </script>
1.11      www       688: <h3>Personal Data</h3>
1.50      matthew   689: <table>
                    690: <tr><td>First Name:</td><td> <input type="text" name="cfirst"  size="15"></td></tr>
                    691: <tr><td>Middle Name:</td><td> <input type="text" name="cmiddle" size="15"></td></tr>
                    692: <tr><td>Last Name: </td><td><input type="text" name="clast"   size="15"></td></tr>
                    693: <tr><td>Generation: </td><td><input type="text" name="cgen"    size="5"> </td></tr>
                    694: </table>
1.11      www       695: 
1.12      www       696: <h3>Login Data</h3>
1.26      matthew   697: <p>Username: <input type="text" name="cuname"  size="15"></p>
1.29      matthew   698: <p>Domain:   $domform</p>
1.26      matthew   699: <p>Note: login settings below  will not take effect if the user already exists
                    700: </p><p>
1.28      matthew   701: $krbform
1.26      matthew   702: </p><p>
1.28      matthew   703: $intform
1.26      matthew   704: </p><p>
1.28      matthew   705: $locform
1.26      matthew   706: </p><p>
1.50      matthew   707: 
                    708: <h3>Course Data</h3>
                    709: 
                    710: <p>Group/Section: <input type="text" name="csec" size="5" />
                    711: <p>
                    712: <!-- Date setting form elements -->
                    713: <input type="hidden" name="pres_value"  value='' />
                    714: <input type="hidden" name="pres_type"   value='' />
                    715: <input type="hidden" name="pres_marker" value='' />
                    716: <input type="hidden" name="startdate"   value='$today'    />
                    717: <input type="hidden" name="enddate"     value='$halfyear' />
1.26      matthew   718: </p><p>
1.11      www       719: <a 
                    720:  href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
1.26      matthew   721: >Set Starting Date</a>
                    722: </p><p>
1.11      www       723: <a 
                    724:  href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
1.26      matthew   725: >Set Ending Date</a>
1.50      matthew   726: </p>
                    727: <h3>ID/Student Number</h3>
                    728: <p>
                    729: ID/Student Number: <input type="text" name="cstid" size="10">
1.26      matthew   730: </p><p>
                    731: <input type="checkbox" name="forceid" value="yes"> 
1.18      www       732: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1.50      matthew   733: (only do if you know what you are doing)
                    734: </p><p>
                    735: <input type="button" onClick="verify(this.form)" value="Enroll as student">
1.26      matthew   736: </p>
1.50      matthew   737: END
                    738:     return;
1.10      www       739: }
                    740: 
                    741: # ========================================================= Menu Phase Two Drop
1.51      matthew   742: sub print_drop_menu {
1.10      www       743:     my $r=shift;
1.40      matthew   744:     $r->print("<h3>Drop Students</h3>");
1.11      www       745:     my $cid=$ENV{'request.course.id'};
1.56      matthew   746:     my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
                    747:     if (! defined($classlist)) {
1.27      matthew   748:         $r->print("There are no students currently enrolled.\n");
1.51      matthew   749:         return;
1.25      matthew   750:     }
1.51      matthew   751:     # Print out the available choices
1.56      matthew   752:     &show_drop_list($r,$classlist,$keylist);
1.51      matthew   753:     return;
1.11      www       754: }
                    755: 
1.40      matthew   756: # ============================================== view classlist
1.50      matthew   757: sub print_html_classlist {
1.40      matthew   758:     my $r=shift;
1.57      matthew   759:     if (! exists($ENV{'form.sortby'})) {
                    760:         $ENV{'form.sortby'} = 'username';
                    761:     }
1.59      matthew   762:     if ($ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
1.57      matthew   763:         $ENV{'form.Status'} = 'Active';
                    764:     }
                    765:     my $status_select = &Apache::lonhtmlcommon::StatusOptions
                    766:         ($ENV{'form.Status'},'studentform');
1.48      matthew   767:     $r->print(<<END);
1.58      matthew   768: <input type="hidden" name="action" value="$ENV{'form.action'}" />
1.57      matthew   769: <input type="hidden" name="state"  value="" />
1.50      matthew   770: <p>
1.57      matthew   771: <font size="+1">Current Classlist</font>
                    772: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1.59      matthew   773: END
                    774:     if ($ENV{'form.action'} ne 'modifystudent') {
                    775:         $r->print(<<END);
1.57      matthew   776: <font size="+1">
                    777: <a href="javascript:document.studentform.state.value='csv';document.studentform.submit();">CSV format</a>
1.61      matthew   778: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1.60      matthew   779: <a href="javascript:document.studentform.state.value='excel';document.studentform.submit();">Excel format</a>
1.57      matthew   780: </font>
                    781: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1.61      matthew   782: Student Status:
1.48      matthew   783: END
1.59      matthew   784:     }
                    785:     $r->print($status_select."</p>\n");
1.40      matthew   786:     my $cid=$ENV{'request.course.id'};
1.56      matthew   787:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
                    788:     if (! defined($classlist)) {
1.40      matthew   789:         $r->print("There are no students currently enrolled.\n");
                    790:     } else {
                    791:         # Print out the available choices
1.50      matthew   792:         if ($ENV{'form.action'} eq 'modifystudent') {
1.53      matthew   793:             &show_class_list($r,'view','modify','modifystudent',
1.57      matthew   794:                              $ENV{'form.Status'},$classlist,$keylist);
1.50      matthew   795:         } else {
1.53      matthew   796:             &show_class_list($r,'view','aboutme','classlist',
1.57      matthew   797:                              $ENV{'form.Status'},$classlist,$keylist);
1.50      matthew   798:         }
1.41      matthew   799:     }
                    800: }
                    801: 
                    802: # ============================================== view classlist
1.60      matthew   803: sub print_formatted_classlist {
1.41      matthew   804:     my $r=shift;
1.60      matthew   805:     my $mode = shift;
1.41      matthew   806:     my $cid=$ENV{'request.course.id'};
1.56      matthew   807:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
                    808:     if (! defined($classlist)) {
1.41      matthew   809:         $r->print("There are no students currently enrolled.\n");
                    810:     } else {
1.60      matthew   811:         &show_class_list($r,$mode,'nolink','csv',
1.57      matthew   812:                          $ENV{'form.Status'},$classlist,$keylist);
1.40      matthew   813:     }
                    814: }
                    815: 
                    816: # =================================================== Show student list to drop
                    817: sub show_class_list {
1.56      matthew   818:     my ($r,$mode,$linkto,$action,$statusmode,$classlist,$keylist)=@_;
1.40      matthew   819:     my $cid=$ENV{'request.course.id'};
1.60      matthew   820:     #
                    821:     # Variables for excel output
                    822:     my ($excel_workbook, $excel_sheet, $excel_filename,$row);
                    823:     #
1.53      matthew   824:     my $sortby = $ENV{'form.sortby'};
                    825:     if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
                    826:         $sortby = 'username';
                    827:     }
1.42      matthew   828:     # Print out header 
1.41      matthew   829:     if ($mode eq 'view') {
1.50      matthew   830:         if ($linkto eq 'aboutme') {
1.56      matthew   831:             $r->print('Select a user name to view the users personal page.');
1.50      matthew   832:         } elsif ($linkto eq 'modify') {
                    833:             $r->print('Select a user name to modify the students information');
                    834:         }
1.41      matthew   835:         $r->print(<<END);
1.59      matthew   836: 
1.53      matthew   837: <input type="hidden" name="sortby" value="$sortby" />
1.59      matthew   838: <input type="hidden" name="sname"  value="" />
                    839: <input type="hidden" name="sdom"   value="" />
1.40      matthew   840: <p>
                    841: <table border=2>
1.53      matthew   842: <tr><th>
1.57      matthew   843:        <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">username</a>
1.53      matthew   844:     </th><th>
1.57      matthew   845:        <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">domain</a>
1.53      matthew   846:     </th><th>
1.57      matthew   847:        <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
1.53      matthew   848:     </th><th>
1.57      matthew   849:        <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">student name</a>
1.53      matthew   850:     </th><th>
1.57      matthew   851:        <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">section</a>
1.53      matthew   852:     </th>
                    853: </tr>
1.40      matthew   854: END
1.41      matthew   855:     } elsif ($mode eq 'csv') {
1.58      matthew   856:         if($statusmode eq 'Expired') {
                    857:             $r->print('"Students with expired roles"');
                    858:         }
                    859:         if ($statusmode eq 'Any') {
                    860:             $r->print('"'.join('","',("username","domain","ID","student name",
                    861:                                       "section","status")).'"'."\n");
                    862:         } else {
                    863:             $r->print('"'.join('","',("username","domain","ID","student name",
                    864:                                       "section")).'"'."\n");
                    865:         }
1.60      matthew   866:     } elsif ($mode eq 'excel') {
                    867:         # Create the excel spreadsheet
                    868:         $excel_filename = '/prtspool/'.
                    869:             $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
                    870:                 time.'_'.rand(1000000000).'.xls';
                    871:         $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
                    872:                                                        $excel_filename);
                    873:         $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
                    874:         $excel_sheet = $excel_workbook->addworksheet('classlist');
                    875:         #
                    876:         my $description = 'Classlist for '.
                    877:             $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
                    878:         $excel_sheet->write($row++,0,$description);
                    879:         #
                    880:         $excel_sheet->write($row++,0,["username","domain","ID",
                    881:                                       "student name","section","status"]);
1.41      matthew   882:     }
1.56      matthew   883:     #
                    884:     # Sort the students
                    885:     my %index;
                    886:     my $i;
                    887:     foreach (@$keylist) {
                    888:         $index{$_} = $i++;
                    889:     }
                    890:     my $index  = $index{$sortby};
                    891:     my $second = $index{'username'};
                    892:     my $third  = $index{'domain'};
1.53      matthew   893:     my @Sorted_Students = sort {
1.56      matthew   894:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
                    895:             ||
                    896:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
                    897:             ||
                    898:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
                    899:         } (keys(%$classlist));
1.53      matthew   900:     foreach my $student (@Sorted_Students) {
1.56      matthew   901:         my $username = $classlist->{$student}->[$index{'username'}];
                    902:         my $domain   = $classlist->{$student}->[$index{'domain'}];
                    903:         my $section  = $classlist->{$student}->[$index{'section'}];
                    904:         my $name     = $classlist->{$student}->[$index{'fullname'}];
                    905:         my $id       = $classlist->{$student}->[$index{'id'}];
                    906:         my $status   = $classlist->{$student}->[$index{'status'}];
1.57      matthew   907:         next if (($statusmode ne 'Any') && ($status ne $statusmode));
1.51      matthew   908:         if ($mode eq 'view') {
                    909:             $r->print("<tr>\n    <td>\n        ");
                    910:             if ($linkto eq 'nothing') {
                    911:                 $r->print($username);
                    912:             } elsif ($linkto eq 'aboutme') {
                    913:                 $r->print(&Apache::loncommon::aboutmewrapper($username,
                    914:                                                              $username,
                    915:                                                              $domain));
                    916:             } elsif ($linkto eq 'modify') {
1.59      matthew   917:                 $r->print('<a href="'.
                    918:                           "javascript:document.studentform.sname.value='".
                    919:                           $username.
                    920:                           "';document.studentform.sdom.value='".$domain.
                    921:                           "';document.studentform.state.value='selected".
                    922:                           "';document.studentform.submit();".'">'.
1.53      matthew   923:                           $username."</a>\n");
1.50      matthew   924:             }
1.51      matthew   925:             $r->print(<<"END");
1.50      matthew   926:     </td>
1.51      matthew   927:     <td>$domain</td>
                    928:     <td>$id</td>
                    929:     <td>$name</td>
                    930:     <td>$section</td>
1.40      matthew   931: </tr>
                    932: END
1.51      matthew   933:         } elsif ($mode eq 'csv') {
                    934:             # no need to bother with $linkto
                    935:             my @line = ();
                    936:             foreach ($username,$domain,$id,$name,$section) {
                    937:                 push @line,&Apache::loncommon::csv_translate($_);
1.58      matthew   938:             }
                    939:             if ($statusmode eq 'Any') {
                    940:                 push @line,&Apache::loncommon::csv_translate($status);
1.41      matthew   941:             }
1.51      matthew   942:             my $tmp = $";
                    943:             $" = '","';
                    944:             $r->print("\"@line\"\n");
                    945:             $" = $tmp;
1.60      matthew   946:         } elsif ($mode eq 'excel') {
                    947:             $excel_sheet->write($row++,0,[$username,$domain,$id,
                    948:                                           $name,$section,$status]);
1.40      matthew   949:         }
                    950:     }
1.60      matthew   951:     if ($mode eq 'view') {
                    952:         $r->print('</table><br>');
                    953:     } elsif ($mode eq 'excel') {
                    954:         $excel_workbook->close();
                    955:         $r->print('<p><a href="'.$excel_filename.'">'.
                    956:                   'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
                    957:     }
1.40      matthew   958: }
                    959: 
1.50      matthew   960: 
                    961: #
                    962: # print out form for modification of a single students data
                    963: #
                    964: sub print_modify_student_form {
                    965:     my $r = shift();
                    966:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.59      matthew   967:                                             ['sdom','sname']);    
1.53      matthew   968:     my $sname  = $ENV{'form.sname'};
                    969:     my $sdom   = $ENV{'form.sdom'};
                    970:     my $sortby = $ENV{'form.sortby'};
1.50      matthew   971:     # determine the students name information
                    972:     my %info=&Apache::lonnet::get('environment',
                    973:                                   ['firstname','middlename',
1.52      matthew   974:                                    'lastname','generation','id'],
1.50      matthew   975:                                   $sdom, $sname);
                    976:     my ($tmp) = keys(%info);
                    977:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
                    978:         $r->print('<font color="#ff0000" size="+2">Error</font>'.
                    979:                   '<p>'.
                    980:                   'Unable to retrieve environment data for '.$sname.
                    981:                   'in domain '.$sdom.'</p><p>'.
                    982:                   'Please contact your LON-CAPA administrator '.
                    983:                   'regarding this situation.</p></body></html>');
                    984:         return;
                    985:     }
                    986:     # determine the students starting and ending times and section
                    987:     my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
                    988:     # Deal with date forms
                    989:     my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
                    990:                                                             'startdate',
                    991:                                                             $starttime);
                    992:     my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
                    993:                                                           'enddate',
                    994:                                                           $endtime);
1.59      matthew   995:     #
                    996:     if (! exists($ENV{'form.Status'}) || 
                    997:         $ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
                    998:         $ENV{'form.Status'} = 'crap';
                    999:     }
1.50      matthew  1000:     # Make sure student is enrolled in course    
                   1001:     $r->print(<<END);
1.52      matthew  1002: <p>
                   1003: <font size="+1">
                   1004: Only domain coordinators can change a users password.
                   1005: </font>
                   1006: </p>
1.50      matthew  1007: <input type="hidden" name="slogin"  value="$sname"  />
                   1008: <input type="hidden" name="sdomain" value="$sdom" />
                   1009: <input type="hidden" name="action"  value="modifystudent" />
1.53      matthew  1010: <input type="hidden" name="state"   value="done" />
                   1011: <input type="hidden" name="sortby"  value="$sortby" />
1.59      matthew  1012: <input type="hidden" name="Status"  value="$ENV{'form.Status'}" />
                   1013: 
1.50      matthew  1014: <h2>Modify Enrollment for $info{'firstname'} $info{'middlename'} 
                   1015: $info{'lastname'} $info{'generation'}, $sname\@$sdom</h2>
                   1016: <p>
                   1017: <b>Student Name</b>
                   1018: <table>
                   1019: <tr><th>First</th><th>Middle</th><th>Last</th><th>Generation</th></tr>
                   1020: <tr><td>
                   1021: <input type="text" name="firstname"  value="$info{'firstname'}"  /></td><td>
                   1022: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
                   1023: <input type="text" name="lastname"   value="$info{'lastname'}"   /></td><td>
                   1024: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
                   1025: </table>
                   1026: </p><p>
1.52      matthew  1027: <b>Student ID</b>: <input type="text" name="id" value="$info{'id'}" size="12"/>
                   1028: </p><p>
1.53      matthew  1029: <input type="checkbox" name="forceid" > 
                   1030: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
                   1031: (only do if you know what you are doing)
                   1032: </p><p>
1.50      matthew  1033: <b>Section</b>: <input type="text" name="section" value="$section" size="4"/>
                   1034: </p><p>
                   1035: <table>
                   1036: <tr><td align="right"><b>Starting Date:</b></td><td>$startdateform</td></tr>
                   1037: <tr><td align="right"><b>Ending Date:</b></td><td>$enddateform</td></tr>
                   1038: </table>
                   1039: </p>
                   1040: <input type="submit" value="Submit Modifications" />
                   1041: </body></html>
                   1042: END
                   1043:     return;
                   1044: }
                   1045: 
                   1046: #
                   1047: # modify a single students section 
                   1048: #
                   1049: sub modify_single_student {
                   1050:     my $r = shift;
1.59      matthew  1051:     # Get the 'sortby' and 'Status' variables so the user goes back to their
                   1052:     # previous screen
1.53      matthew  1053:     my $sortby = $ENV{'form.sortby'};
1.59      matthew  1054:     my $status = $ENV{'form.Status'};
1.53      matthew  1055:     #
                   1056:     # We always need this information
                   1057:     my $slogin     = $ENV{'form.slogin'};
                   1058:     my $sdom       = $ENV{'form.sdomain'};
                   1059:     #
                   1060:     # Get the old data
                   1061:     my %old=&Apache::lonnet::get('environment',
                   1062:                                  ['firstname','middlename',
                   1063:                                   'lastname','generation','id'],
                   1064:                                  $sdom, $slogin);
1.59      matthew  1065:     $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
                   1066:                                                   $ENV{'request.course.id'});
1.53      matthew  1067:     my ($tmp) = keys(%old);
                   1068:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
                   1069:         $r->print("There was an error determining the environment values ".
                   1070:                   " for $slogin \@ $sdom.");
                   1071:         return;
                   1072:     }
                   1073:     undef $tmp;
                   1074:     #
                   1075:     # Get the new data
1.50      matthew  1076:     my $firstname  = $ENV{'form.firstname'};
                   1077:     my $middlename = $ENV{'form.middlename'};
                   1078:     my $lastname   = $ENV{'form.lastname'};
                   1079:     my $generation = $ENV{'form.generation'};
                   1080:     my $section    = $ENV{'form.section'};
                   1081:     my $courseid   = $ENV{'request.course.id'};
1.52      matthew  1082:     my $sid        = $ENV{'form.id'};
1.66    ! matthew  1083:     my $starttime = &Apache::lonhtmlcommon::get_date_from_form('startdate');
        !          1084:     my $endtime   = &Apache::lonhtmlcommon::get_date_from_form('enddate');
1.50      matthew  1085:     my $displayable_starttime = localtime($starttime);
                   1086:     my $displayable_endtime   = localtime($endtime);
1.53      matthew  1087:     # 
                   1088:     # check for forceid override
1.63      matthew  1089:     if ((defined($old{'id'})) && ($old{'id'} ne '') && 
                   1090:         ($sid ne $old{'id'}) && (! exists($ENV{'form.forceid'}))) {
1.53      matthew  1091:         $r->print("<font color=\"ff0000\">You changed the students id ".
                   1092:                   " but did not disable the ID change safeguard.".
                   1093:                   "  The students id will not be changed.</font>");
                   1094:         $sid = $old{'id'};
                   1095:     }
                   1096:     #
1.50      matthew  1097:     # talk to the user about what we are going to do
                   1098:     $r->print(<<END);
1.53      matthew  1099:     <h2>Modifying data for user $slogin \@ $sdom </h2>
1.50      matthew  1100: <h3>Student Information</h3>
1.53      matthew  1101: <table rules="rows" border="1" cellpadding="3" >
                   1102: <tr>
                   1103:     <th> Field </th>
                   1104:     <th> Old Value </th>
                   1105:     <th> New Value </th>
                   1106: </tr>
                   1107: <tr>
                   1108:     <td> <b>First name</b> </td>
                   1109:     <td> $old{'firstname'} </td>
                   1110:     <td> $firstname </td>
                   1111: </tr><tr>
                   1112:     <td> <b>Middle name</b> </td>
                   1113:     <td> $old{'middlename'} </td>
                   1114:     <td> $middlename </td>
                   1115: </tr><tr>
                   1116:     <td> <b>Last name</b> </td>
                   1117:     <td> $old{'lastname'} </td>
                   1118:     <td> $lastname </td>
                   1119: </tr><tr>
                   1120:     <td> <b>Generation</b> </td>
                   1121:     <td> $old{'generation'} </td>
                   1122:     <td> $generation </td>
                   1123: </tr><tr>
                   1124:     <td> <b>ID</b> </td>
                   1125:     <td> $old{'id'} </td>
                   1126:     <td> $sid </td>
1.59      matthew  1127: </tr><tr>
                   1128:     <td> <b>Section</b> </td>
                   1129:     <td> $old{'section'} </td>
                   1130:     <td> $section</td>
1.53      matthew  1131: </tr>
1.50      matthew  1132: </table>
                   1133: <h3>Role Information</h3>
                   1134: <table>
                   1135: <tr><td>Start Time  </td><td> $displayable_starttime </td></tr>
                   1136: <tr><td>End Time    </td><td> $displayable_endtime   </td></tr>
                   1137: </table>
1.52      matthew  1138: <p>
1.50      matthew  1139: END
1.53      matthew  1140:     #
1.63      matthew  1141:     # Send request(s) to modify data (final undef is for 'desiredhost',
                   1142:     # which is a moot point because the student already has an account.
                   1143:     my $modify_section_results = &modifystudent($sdom,$slogin,
                   1144:                                                 $ENV{'request.course.id'},
                   1145:                                                 $section,undef);
                   1146:     if ($modify_section_results !~ /^ok/) {
                   1147:         $r->print("An error occured during the attempt to change the ".
                   1148:                   "section for this student.<br />");
                   1149:     }
1.52      matthew  1150:     my $roleresults = &Apache::lonnet::modifystudent
1.53      matthew  1151:         ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
                   1152:          $generation,$section,$endtime,$starttime,$ENV{'form.forceid'});
                   1153:     if ($roleresults eq 'refused' ) {
1.50      matthew  1154:         $r->print("Your request to change the role information for this ".
1.53      matthew  1155:                   "student was refused.  You do not appear to have ".
                   1156:                   "sufficient authority to change student information.");
1.50      matthew  1157:     } elsif ($roleresults !~ /ok/) {
                   1158:         $r->print("An error occurred during the attempt to change the role".
1.52      matthew  1159:                   " information for this student.  <br />".
                   1160:                   "The error reported was ".
1.50      matthew  1161:                   $roleresults);
1.53      matthew  1162:         &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
                   1163:                                  " data for ".$slogin." \@ ".$sdom." by ".
                   1164:                                  $ENV{'user.name'}." \@ ".$ENV{'user.domain'}.
                   1165:                                  ":".$roleresults);
1.50      matthew  1166:     } else { # everything is okay!
1.52      matthew  1167:         $r->print("Student information updated successfully. <br />".
                   1168:                   "The student must log out and log in again to see ".
                   1169:                   "these changes.");
1.50      matthew  1170:     }
                   1171:     $r->print(<<END);
1.52      matthew  1172: </p><p>
1.59      matthew  1173: <input type="hidden" name="action" value="modifystudent" />
                   1174: <input type="hidden" name="sortby" value="$sortby" />
                   1175: <input type="hidden" name="Status" value="$status" />
                   1176: <a href="javascript:document.studentform.submit();">Modify another students data</a>
1.50      matthew  1177: </body></html>
                   1178: END
                   1179:     return;
                   1180: }
                   1181: 
                   1182: sub get_enrollment_data {
                   1183:     my ($sname,$sdomain) = @_;
                   1184:     my $courseid = $ENV{'request.course.id'};
                   1185:     $courseid =~ s:_:/:g;
                   1186:     my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
                   1187:     my ($tmp) = keys(%roles);
                   1188:     # Bail out if we were unable to get the students roles
                   1189:     return "666" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
                   1190:     # Go through the roles looking for enrollment in this course
                   1191:     my ($end,$start) = (undef,undef);
                   1192:     my $section = '';
                   1193:     my $count = scalar(keys(%roles));
                   1194:     while (my ($course,$role) = each(%roles)) {
                   1195:         &Apache::lonnet::logthis('course = '.$course.' role = '.$role);
                   1196:         if ($course=~ /^\/$courseid\/*\s*(\w+)*_st$/ ) {
                   1197:             #
                   1198:             # Get active role
                   1199:             $section=$1;
                   1200:             (undef,$end,$start)=split(/\_/,$role);
                   1201:             my $now=time;
                   1202:             my $notactive=0;
                   1203:             if ($start) {
                   1204:                 if ($now<$start) { $notactive=1; }
                   1205:             }
                   1206:             if ($end) {
                   1207:                 if ($now>$end) { $notactive=1; }
                   1208:             } 
                   1209:             unless ($notactive) { return ($start,$end,$section); }
                   1210:         }
                   1211:     }
                   1212:     return ($start,$end,$section);
                   1213: }
                   1214: 
1.56      matthew  1215: #################################################
                   1216: #################################################
                   1217: 
                   1218: =pod
                   1219: 
                   1220: =item show_drop_list
                   1221: 
                   1222: Display a list of students to drop
                   1223: Inputs: 
                   1224: 
                   1225: =over 4
                   1226: 
                   1227: =item $r, Apache request
                   1228: 
                   1229: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
                   1230: 
                   1231: =item $keylist, array pointer returned from loncoursedata::get_classlist() 
                   1232: which describes the order elements are stored in the %$classlist values.
                   1233: 
                   1234: =item $nosort, if true, sorting links are omitted.
                   1235: 
                   1236: =back
                   1237: 
                   1238: =cut
                   1239: 
                   1240: #################################################
                   1241: #################################################
1.11      www      1242: sub show_drop_list {
1.56      matthew  1243:     my ($r,$classlist,$keylist,$nosort)=@_;
1.11      www      1244:     my $cid=$ENV{'request.course.id'};
1.59      matthew  1245:     if (! exists($ENV{'form.sortby'})) {
                   1246:         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                   1247:                                                 ['sortby']);
                   1248:     }
1.54      matthew  1249:     my $sortby = $ENV{'form.sortby'};
                   1250:     if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
                   1251:         $sortby = 'username';
                   1252:     }
1.56      matthew  1253:     #
1.54      matthew  1254:     my $action = "drop";
                   1255:     $r->print(<<END);
                   1256: <input type="hidden" name="sortby" value="$sortby" />
                   1257: <input type="hidden" name="action" value="$action" />
1.50      matthew  1258: <input type="hidden" name="state"  value="done" />
1.32      matthew  1259: <script>
1.51      matthew  1260: function checkAll(field) {
1.32      matthew  1261:     for (i = 0; i < field.length; i++)
                   1262:         field[i].checked = true ;
                   1263: }
                   1264: 
1.51      matthew  1265: function uncheckAll(field) {
1.32      matthew  1266:     for (i = 0; i < field.length; i++)
                   1267:         field[i].checked = false ;
                   1268: }
                   1269: </script>
                   1270: <p>
1.26      matthew  1271: <input type="hidden" name="phase" value="four">
1.56      matthew  1272: END
                   1273: 
                   1274:     if ($nosort) {
                   1275:         $r->print(<<END);
                   1276: <table border=2>
                   1277: <tr>
                   1278:     <th>&nbsp;</th>
                   1279:     <th>username</th>
                   1280:     <th>domain</th>
                   1281:     <th>ID</th>
                   1282:     <th>student name</th>
                   1283:     <th>section</th>
                   1284: </tr>
                   1285: END
                   1286: 
                   1287:     } else  {
                   1288:         $r->print(<<END);
1.26      matthew  1289: <table border=2>
1.54      matthew  1290: <tr><th>&nbsp;</th>
                   1291:     <th>
                   1292:        <a href="/adm/dropadd?action=$action&sortby=username">username</a>
                   1293:     </th><th>
                   1294:        <a href="/adm/dropadd?action=$action&sortby=domain">domain</a>
                   1295:     </th><th>
                   1296:        <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
                   1297:     </th><th>
                   1298:        <a href="/adm/dropadd?action=$action&sortby=fullname">student name</a>
                   1299:     </th><th>
                   1300:        <a href="/adm/dropadd?action=$action&sortby=section">section</a>
                   1301:     </th>
                   1302: </tr>
1.26      matthew  1303: END
1.56      matthew  1304:     }
                   1305:     #
                   1306:     # Sort the students
                   1307:     my %index;
                   1308:     my $i;
                   1309:     foreach (@$keylist) {
                   1310:         $index{$_} = $i++;
                   1311:     }
                   1312:     my $index  = $index{$sortby};
                   1313:     my $second = $index{'username'};
                   1314:     my $third  = $index{'domain'};
1.54      matthew  1315:     my @Sorted_Students = sort {
1.56      matthew  1316:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
                   1317:             ||
                   1318:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
                   1319:             ||
                   1320:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
                   1321:         } (keys(%$classlist));
1.54      matthew  1322:     foreach my $student (@Sorted_Students) {
1.52      matthew  1323:         my $error;
1.56      matthew  1324:         my $username = $classlist->{$student}->[$index{'username'}];
                   1325:         my $domain   = $classlist->{$student}->[$index{'domain'}];
                   1326:         my $section  = $classlist->{$student}->[$index{'section'}];
                   1327:         my $name     = $classlist->{$student}->[$index{'fullname'}];
                   1328:         my $id       = $classlist->{$student}->[$index{'id'}];
                   1329:         my $status   = $classlist->{$student}->[$index{'status'}];
1.51      matthew  1330:         next if ($status ne 'Active');
                   1331:         #
                   1332:         $r->print(<<"END");
1.26      matthew  1333: <tr>
1.51      matthew  1334:     <td><input type="checkbox" name="droplist" value="$student"></td>
                   1335:     <td>$username</td>
                   1336:     <td>$domain</td>
                   1337:     <td>$id</td>
                   1338:     <td>$name</td>
                   1339:     <td>$section</td>
1.26      matthew  1340: </tr>
                   1341: END
1.25      matthew  1342:     }
                   1343:     $r->print('</table><br>');
1.32      matthew  1344:     $r->print(<<"END");
                   1345: </p><p>
                   1346: <input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)"> &nbsp;
                   1347: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)"> 
                   1348: <p><input type=submit value="Drop Students"></p>
                   1349: END
1.51      matthew  1350:     return;
1.10      www      1351: }
                   1352: 
1.48      matthew  1353: #
                   1354: # Print out the initial form to get the courselist file
                   1355: #
                   1356: sub print_first_courselist_upload_form {
                   1357:     my $r=shift;
                   1358:     my $upfile_select=&Apache::loncommon::upfile_select_html();
                   1359:     my $create_classlist_help = 
                   1360: 	&Apache::loncommon::help_open_topic("Course_Create_Class_List",
                   1361:            "How do I create a class list from a spreadsheet");
                   1362:     my $create_csv_help =
                   1363: 	&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
                   1364:            "How do I create a CSV file from a spreadsheet");
                   1365:     $r->print(<<ENDUPFORM);
                   1366: <input type=hidden name=phase value=two>
                   1367: <h3>Upload a courselist</h3>
                   1368: $upfile_select
1.50      matthew  1369: <p>
                   1370: <input type=submit name="fileupload" value="Upload Courselist">
                   1371: <input type="hidden" name="action" value="upload" />
                   1372: <input type="hidden" name="state"  value="got_file" />
                   1373: </p>
1.48      matthew  1374: $create_classlist_help <br />
                   1375: $create_csv_help
                   1376: </body></html>
                   1377: ENDUPFORM
                   1378:     return;
                   1379: }
                   1380: 
1.10      www      1381: # ================================================= Drop/Add from uploaded file
                   1382: sub upfile_drop_add {
                   1383:     my $r=shift;
1.24      albertel 1384:     &Apache::loncommon::load_tmp_file($r);
                   1385:     my @studentdata=&Apache::loncommon::upfile_record_sep();
1.26      matthew  1386:     my @keyfields = split(/\,/,$ENV{'form.keyfields'});
                   1387:     my $cid = $ENV{'request.course.id'};
1.25      matthew  1388:     my %fields=();
1.26      matthew  1389:     for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
1.25      matthew  1390:         if ($ENV{'form.upfile_associate'} eq 'reverse') {
                   1391:             if ($ENV{'form.f'.$i} ne 'none') {
                   1392:                 $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
                   1393:             }
                   1394:         } else {
                   1395:             $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
                   1396:         }
                   1397:     }
1.26      matthew  1398:     #
                   1399:     my $startdate = $ENV{'form.startdate'};
                   1400:     my $enddate   = $ENV{'form.enddate'};
1.25      matthew  1401:     if ($startdate=~/\D/) { $startdate=''; }
1.26      matthew  1402:     if ($enddate=~/\D/)   { $enddate=''; }
1.31      matthew  1403:     # Determine domain and desired host (home server)
1.25      matthew  1404:     my $domain=$ENV{'form.lcdomain'};
1.31      matthew  1405:     my $desiredhost = $ENV{'form.lcserver'};
                   1406:     if (lc($desiredhost) eq 'default') {
                   1407:         $desiredhost = undef;
                   1408:     } else {
1.45      matthew  1409:         my %home_servers = &Apache::loncommon::get_library_servers($domain);
1.31      matthew  1410:         if (! exists($home_servers{$desiredhost})) {
                   1411:             $r->print('<font color="#ff0000">Error:</font>'.
                   1412:                       'Invalid home server specified');
                   1413:             return;
                   1414:         }
                   1415:     }
1.26      matthew  1416:     # Determine authentication mechanism
                   1417:     my $amode  = '';
                   1418:     my $genpwd = '';
1.25      matthew  1419:     if ($ENV{'form.login'} eq 'krb') {
1.47      albertel 1420:         $amode='krb';
                   1421: 	$amode.=$ENV{'form.krbver'};
1.28      matthew  1422:         $genpwd=$ENV{'form.krbarg'};
1.25      matthew  1423:     } elsif ($ENV{'form.login'} eq 'int') {
                   1424:         $amode='internal';
1.28      matthew  1425:         if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
                   1426:             $genpwd=$ENV{'form.intarg'};
1.25      matthew  1427:         }
                   1428:     } elsif ($ENV{'form.login'} eq 'loc') {
                   1429:         $amode='localauth';
                   1430:         if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
                   1431:             $genpwd=$ENV{'form.locarg'};
                   1432:         }
                   1433:     }
                   1434:     unless (($domain=~/\W/) || ($amode eq '')) {
1.26      matthew  1435:         #######################################
                   1436:         ##         Enroll Students           ##
                   1437:         #######################################
1.25      matthew  1438:         $r->print('<h3>Enrolling Students</h3>');
                   1439:         my $count=0;
                   1440:         my $flushc=0;
                   1441:         my %student=();
1.26      matthew  1442:         # Get new classlist
1.25      matthew  1443:         foreach (@studentdata) {
                   1444:             my %entries=&Apache::loncommon::record_sep($_);
1.26      matthew  1445:             # Determine student name
1.25      matthew  1446:             unless (($entries{$fields{'username'}} eq '') ||
                   1447:                     (!defined($entries{$fields{'username'}}))) {
1.26      matthew  1448:                 my ($fname, $mname, $lname,$gen) = ('','','','');
1.25      matthew  1449:                 if (defined($fields{'names'})) {
1.26      matthew  1450:                     ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
                   1451:                                             /([^\,]+)\,\s*(\w+)\s*(.*)$/);
1.25      matthew  1452:                 } else {
                   1453:                     if (defined($fields{'fname'})) {
                   1454:                         $fname=$entries{$fields{'fname'}};
                   1455:                     }
                   1456:                     if (defined($fields{'mname'})) {
                   1457:                         $mname=$entries{$fields{'mname'}};
                   1458:                     }
                   1459:                     if (defined($fields{'lname'})) {
                   1460:                         $lname=$entries{$fields{'lname'}};
                   1461:                     }
                   1462:                     if (defined($fields{'gen'})) {
                   1463:                         $gen=$entries{$fields{'gen'}};
                   1464:                     }
                   1465:                 }
                   1466:                 if ($entries{$fields{'username'}}=~/\W/) {
                   1467:                     $r->print('<p><b>Unacceptable username: '.
1.10      www      1468:                               $entries{$fields{'username'}}.' for user '.
1.4       www      1469:                               $fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
1.25      matthew  1470:                 } else {
1.26      matthew  1471:                     # determine section number
1.25      matthew  1472:                     my $sec='';
                   1473:                     my $username=$entries{$fields{'username'}};
                   1474:                     if (defined($fields{'sec'})) {
                   1475:                         if (defined($entries{$fields{'sec'}})) {
                   1476:                             $sec=$entries{$fields{'sec'}};
                   1477:                         }
                   1478:                     }
1.26      matthew  1479:                     # determine student id number
1.25      matthew  1480:                     my $id='';
                   1481:                     if (defined($fields{'id'})) {
                   1482:                         if (defined($entries{$fields{'id'}})) {
                   1483:                             $id=$entries{$fields{'id'}};
                   1484:                         }
                   1485:                         $id=~tr/A-Z/a-z/;
                   1486:                     }
1.26      matthew  1487:                     # determine student password
1.25      matthew  1488:                     my $password='';
                   1489:                     if ($genpwd) { 
                   1490:                         $password=$genpwd; 
                   1491:                     } else {
                   1492:                         if (defined($fields{'ipwd'})) {
                   1493:                             if ($entries{$fields{'ipwd'}}) {
                   1494:                                 $password=$entries{$fields{'ipwd'}};
                   1495:                             }
                   1496:                         }
                   1497:                     }
1.56      matthew  1498:                     # Clean up whitespace
                   1499:                     foreach (\$domain,\$username,\$id,\$fname,\$mname,
                   1500:                              \$lname,\$gen,\$sec) {
                   1501:                         $$_ =~ s/(\s+$|^\s+)//g;
                   1502:                     }
1.25      matthew  1503:                     if ($password) {
1.33      matthew  1504:                         &modifystudent($domain,$username,$cid,$sec,
                   1505:                                        $desiredhost);
1.25      matthew  1506:                         my $reply=&Apache::lonnet::modifystudent
                   1507:                             ($domain,$username,$id,$amode,$password,
                   1508:                              $fname,$mname,$lname,$gen,$sec,$enddate,
1.31      matthew  1509:                              $startdate,$ENV{'form.forceid'},$desiredhost);
1.26      matthew  1510:                         if ($reply ne 'ok') {
                   1511:                             $r->print('<p><b>'.
                   1512:                                       'Error enrolling '.$username.': '.
                   1513:                                       $reply.'</b></p>');
1.10      www      1514:          		} else {
1.7       www      1515:                             $count++; $flushc++;
                   1516:                             $student{$username}=1;
1.6       www      1517:                             $r->print('. ');
1.7       www      1518:                             if ($flushc>15) {
                   1519: 				$r->rflush;
                   1520:                                 $flushc=0;
                   1521:                             }
1.6       www      1522:                         }
1.25      matthew  1523:                     } else {
                   1524:                         $r->print("<p><b>No password for $username</b><p>");
                   1525:                     }
                   1526:                 }
1.26      matthew  1527:             }
                   1528:         } # end of foreach (@studentdata)
1.55      matthew  1529:         $r->print('<p>Processed Students: '.$count.'</p>');
                   1530:         $r->print("<p>If active, the new role will be available when the ".
                   1531:                   "students next log in to LON-CAPA.</p>");
1.26      matthew  1532:         #####################################
                   1533:         #           Drop students           #
                   1534:         #####################################
1.25      matthew  1535:         if ($ENV{'form.fullup'} eq 'yes') {
                   1536:             $r->print('<h3>Dropping Students</h3>');
1.26      matthew  1537:             #  Get current classlist
1.56      matthew  1538:             my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
                   1539:             if (! defined($classlist)) {
                   1540:                 $r->print("There are no students currently enrolled.\n");
                   1541:             } else {
                   1542:                 # Remove the students we just added from the list of students.
1.25      matthew  1543:                 foreach (@studentdata) {
                   1544:                     my %entries=&Apache::loncommon::record_sep($_);
                   1545:                     unless (($entries{$fields{'username'}} eq '') ||
                   1546:                             (!defined($entries{$fields{'username'}}))) {
1.56      matthew  1547:                         delete($classlist->{$entries{$fields{'username'}}.
1.26      matthew  1548:                                                 ':'.$domain});
1.25      matthew  1549:                     }
                   1550:                 }
1.56      matthew  1551:                 # Print out list of dropped students.
                   1552:                 &show_drop_list($r,$classlist,$keylist,'nosort');
1.25      matthew  1553:             }
                   1554:         }
1.26      matthew  1555:     } # end of unless
1.10      www      1556: }
                   1557: 
1.11      www      1558: # ================================================================== Phase four
                   1559: sub drop_student_list {
                   1560:     my $r=shift;
                   1561:     my $count=0;
1.35      matthew  1562:     my @droplist;
                   1563:     if (ref($ENV{'form.droplist'})) {
                   1564:         @droplist = @{$ENV{'form.droplist'}};
                   1565:     } else {
                   1566:         @droplist = ($ENV{'form.droplist'});
                   1567:     }
                   1568:     foreach (@droplist) {
1.26      matthew  1569:         my ($uname,$udom)=split(/\:/,$_);
1.56      matthew  1570:         # drop student
1.35      matthew  1571:         my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
1.37      matthew  1572:         if ($result eq 'ok' || $result eq 'ok:') {
1.54      matthew  1573:             $r->print('Dropped '.$uname.' @ '.$udom.'<br>');
1.59      matthew  1574:             $count++;
1.35      matthew  1575:         } else {
1.54      matthew  1576:             $r->print('Error dropping '.$uname.' @ '.$udom.': '.$result.
1.35      matthew  1577:                       '<br />');
                   1578:         }
1.20      harris41 1579:     }
1.11      www      1580:     $r->print('<p><b>Dropped '.$count.' student(s).</b>');
1.59      matthew  1581:     $r->print('<p>Re-enrollment will re-activate data.') if ($count);
1.11      www      1582: }
                   1583: 
1.50      matthew  1584: ###################################################################
                   1585: ###################################################################
                   1586: 
                   1587: =pod
                   1588: 
                   1589: =item &handler
                   1590: 
                   1591: The typical handler you see in all these modules.  Takes $r, the
                   1592: http request, as an argument.  
                   1593: 
                   1594: The response to the request is governed by two form variables
                   1595: 
                   1596:  form.action      form.state     response
                   1597:  ---------------------------------------------------
                   1598:  undefined        undefined      print main menu
                   1599:  upload           undefined      print courselist upload menu
                   1600:  upload           got_file       deal with uploaded file,
                   1601:                                  print the upload managing menu
                   1602:  upload           enrolling      enroll students based on upload
                   1603:  drop             undefined      print the classlist ready to drop
                   1604:  drop             done           drop the selected students
                   1605:  enrollstudent    undefined      print single student enroll menu
                   1606:  enrollstudent    enrolling      enroll student
                   1607:  classlist        undefined      print html classlist
                   1608:  classlist        csv            print csv classlist
                   1609:  modifystudent    undefined      print classlist to select student to modify
                   1610:  modifystudent    selected       print modify student menu
                   1611:  modifystudent    done           make modifications to student record
                   1612: 
                   1613: =cut
                   1614: 
                   1615: ###################################################################
                   1616: ###################################################################
1.10      www      1617: sub handler {
1.26      matthew  1618:     my $r=shift;
                   1619:     if ($r->header_only) {
                   1620:         $r->content_type('text/html');
                   1621:         $r->send_http_header;
                   1622:         return OK;
                   1623:     }
1.48      matthew  1624:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.50      matthew  1625:                                             ['action','state']);
1.26      matthew  1626:     #  Needs to be in a course
1.50      matthew  1627:     if (! (($ENV{'request.course.fn'}) &&
                   1628:           (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'})))) {
                   1629:         # Not in a course, or not allowed to modify parms
                   1630:         $ENV{'user.error.msg'}=
                   1631:             "/adm/dropadd:cst:0:0:Cannot drop or add students";
                   1632:         return HTTP_NOT_ACCEPTABLE; 
                   1633:     }
                   1634:     #
                   1635:     # Only output the header information if they did not request csv format
                   1636:     #
                   1637:     if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
                   1638:         $r->content_type('text/csv');
                   1639:     } else {
1.26      matthew  1640:         # Start page
1.50      matthew  1641:         $r->content_type('text/html');
1.26      matthew  1642:         $r->send_http_header;
1.50      matthew  1643:         $r->print(&header());
                   1644:     }
                   1645:     #
                   1646:     # Main switch on form.action and form.state, as appropriate
                   1647:     if (! exists($ENV{'form.action'})) {
                   1648:         &print_main_menu($r);
                   1649:     } elsif ($ENV{'form.action'} eq 'upload') {
                   1650:         if (! exists($ENV{'form.state'})) {
                   1651:             &print_first_courselist_upload_form($r);            
                   1652:         } elsif ($ENV{'form.state'} eq 'got_file') {
                   1653:             &print_upload_manager_form($r);
                   1654:         } elsif ($ENV{'form.state'} eq 'enrolling') {
1.26      matthew  1655:             if ($ENV{'form.datatoken'}) {
                   1656:                 &upfile_drop_add($r);
1.50      matthew  1657:             } else {
                   1658:                 # Hmmm, this is an error
1.26      matthew  1659:             }
1.50      matthew  1660:         } else {
                   1661:             &print_first_courselist_upload_form($r);            
1.26      matthew  1662:         }
1.50      matthew  1663:     } elsif ($ENV{'form.action'} eq 'drop') {
                   1664:         if (! exists($ENV{'form.state'})) {
1.51      matthew  1665:             &print_drop_menu($r);
1.50      matthew  1666:         } elsif ($ENV{'form.state'} eq 'done') {
1.26      matthew  1667:             &drop_student_list($r);
1.50      matthew  1668:         } else {
1.55      matthew  1669:             &print_drop_menu($r);
1.26      matthew  1670:         }
1.50      matthew  1671:     } elsif ($ENV{'form.action'} eq 'enrollstudent') {
                   1672:         if (! exists($ENV{'form.state'})) {
                   1673:             &print_enroll_single_student_form($r);
                   1674:         } elsif ($ENV{'form.state'} eq 'enrolling') {
1.26      matthew  1675:             &enroll_single_student($r);
1.50      matthew  1676:         } else {
                   1677:             &print_enroll_single_student_form($r);
1.26      matthew  1678:         }
1.50      matthew  1679:     } elsif ($ENV{'form.action'} eq 'classlist') {
                   1680:         if (! exists($ENV{'form.state'})) {
                   1681:             &print_html_classlist($r);
                   1682:         } elsif ($ENV{'form.state'} eq 'csv') {
1.60      matthew  1683:             &print_formatted_classlist($r,'csv');
                   1684:         } elsif ($ENV{'form.state'} eq 'excel') {
                   1685:             &print_formatted_classlist($r,'excel');
1.50      matthew  1686:         } else {
                   1687:             &print_html_classlist($r);
                   1688:         }
                   1689:     } elsif ($ENV{'form.action'} eq 'modifystudent') {
                   1690:         if (! exists($ENV{'form.state'})) {
                   1691:             &print_html_classlist($r);
                   1692:         } elsif ($ENV{'form.state'} eq 'selected') {
                   1693:             &print_modify_student_form($r);
                   1694:         } elsif ($ENV{'form.state'} eq 'done') {
                   1695:             &modify_single_student($r);
                   1696:         } else {
                   1697:             &print_html_classlist($r);
                   1698:         }        
                   1699:     } else {
                   1700:         # We should not end up here, but I guess it is possible
                   1701:         &Apache::lonnet::logthis("Undetermined state in londropadd.pm.  ".
                   1702:                                  "form.action = ".$ENV{'form.action'}.
                   1703:                                  "Someone should fix this.");
                   1704:         &print_main_menu($r);
                   1705:     }
                   1706:     #
                   1707:     # Finish up
                   1708:     if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
                   1709:         $r->print("\n");
1.26      matthew  1710:     } else {
1.50      matthew  1711:         $r->print('</form></body></html>');
1.26      matthew  1712:     }
                   1713:     return OK;
1.1       www      1714: }
                   1715: 
1.50      matthew  1716: ###################################################################
                   1717: ###################################################################
                   1718: 
1.1       www      1719: 1;
                   1720: __END__
1.50      matthew  1721: 
1.1       www      1722: 

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