Annotation of loncom/interface/londropadd.pm, revision 1.91.2.1

1.1       www         1: # The LearningOnline Network with CAPA
                      2: # Handler to drop and add students in courses 
                      3: #
1.91.2.1! albertel    4: # $Id: londropadd.pm,v 1.91 2003/12/05 21:27:59 raeburn 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: ###############################################################
1.82      www        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;
1.86      www        45: use Apache::lonlocal;
1.91.2.1! albertel   46: use localenroll();
1.1       www        47: 
1.50      matthew    48: ###############################################################
                     49: ###############################################################
1.10      www        50: sub header {
1.46      www        51:     my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager');
1.88      matthew    52:     my $title = &mt('LON-CAPA Enrollment Manager');
1.27      matthew    53:     return(<<ENDHEAD);
1.1       www        54: <html>
                     55: <head>
1.88      matthew    56: <title>$title</title>
1.1       www        57: </head>
1.46      www        58: $bodytag
1.40      matthew    59: <form method="post" enctype="multipart/form-data"  
                     60:       action="/adm/dropadd" name="studentform">
1.1       www        61: ENDHEAD
1.10      www        62: }
                     63: 
1.50      matthew    64: ###############################################################
                     65: ###############################################################
                     66: # Drop student from all sections of a course, except optional $csec
1.26      matthew    67: sub modifystudent {
1.33      matthew    68:     my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
1.26      matthew    69:     # if $csec is undefined, drop the student from all the courses matching
                     70:     # this one.  If $csec is defined, drop them from all other sections of 
                     71:     # this course and add them to section $csec
1.25      matthew    72:     $courseid=~s/\_/\//g;
                     73:     $courseid=~s/^(\w)/\/$1/;
1.26      matthew    74:     my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
                     75:     my ($tmp) = keys(%roles);
                     76:     # Bail out if we were unable to get the students roles
1.35      matthew    77:     return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
1.26      matthew    78:     # Go through the roles looking for enrollment in this course
1.35      matthew    79:     my $result = '';
1.26      matthew    80:     foreach my $course (keys(%roles)) {
1.35      matthew    81:         if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
1.26      matthew    82:             # We are in this course
1.25      matthew    83:             my $section=$1;
1.26      matthew    84:             $section='' if ($course eq $courseid.'_st');
1.87      matthew    85:             if (defined($csec) && $section eq $csec) {
1.71      matthew    86:                 $result .= 'ok:';
                     87:             } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
1.27      matthew    88:                 my (undef,$end,$start)=split(/\_/,$roles{$course});
1.25      matthew    89:                 my $now=time;
1.50      matthew    90:                 # if this is an active role 
1.27      matthew    91:                 if (!($start && ($now<$start)) || !($end && ($now>$end))) {
1.25      matthew    92:                     my $reply=&Apache::lonnet::modifystudent
1.70      matthew    93:                         # dom  name  id mode pass     f     m     l     g
                     94:                         ($udom,$unam,'',  '',  '',undef,undef,undef,undef,
1.33      matthew    95:                          $section,time,undef,undef,$desiredhost);
1.35      matthew    96:                     $result .= $reply.':';
1.25      matthew    97:                 }
1.10      www        98:             }
                     99:         }
1.20      harris41  100:     }
1.35      matthew   101:     if ($result eq '') {
1.62      matthew   102:         $result = 'Unable to find section for this student';
1.37      matthew   103:     } else {
                    104:         $result =~ s/(ok:)+/ok/g;
1.35      matthew   105:     }
                    106:     return $result;
1.10      www       107: }
                    108: 
1.50      matthew   109: ###############################################################
                    110: ###############################################################
                    111: # build a domain and server selection form
1.31      matthew   112: sub domain_form {
                    113:     my ($defdom) = @_;
                    114:     # Set up domain and server selection forms
                    115:     #
                    116:     # Get the domains
                    117:     my @domains = &Apache::loncommon::get_domains();
                    118:     # build up the menu information to be passed to 
                    119:     # &Apache::loncommon::linked_select_forms
                    120:     my %select_menus;
                    121:     foreach my $dom (@domains) {
                    122:         # set up the text for this domain
                    123:         $select_menus{$dom}->{'text'}= $dom;
                    124:         # we want a choice of 'default' as the default in the second menu
                    125:         $select_menus{$dom}->{'default'}= 'default';
                    126:         $select_menus{$dom}->{'select2'}->{'default'} = 'default';
                    127:         # Now build up the other items in the second menu
1.45      matthew   128:         my %servers = &Apache::loncommon::get_library_servers($dom);
1.31      matthew   129:         foreach my $server (keys(%servers)) {
                    130:             $select_menus{$dom}->{'select2'}->{$server} 
                    131:                                             = "$server $servers{$server}";
                    132:         }
                    133:     }
                    134:     my $result  = &Apache::loncommon::linked_select_forms
                    135:         ('studentform',' with home server ',$defdom,
                    136:          'lcdomain','lcserver',\%select_menus);
                    137:     return $result;
                    138: }
                    139: 
1.50      matthew   140: ###############################################################
                    141: ###############################################################
                    142: #  Menu Phase One
                    143: sub print_main_menu {
1.10      www       144:     my $r=shift;
1.88      matthew   145:     my %Text = &Apache::lonlocal::texthash
                    146:         ('upload'    => 'Upload a class list',
                    147:          'enrollone' => 'Enroll a single student',
                    148:          'modify'    => 'Modify student data',
                    149:          'view'      => 'View Class List',
1.91      raeburn   150:          'drop'      => 'Drop Students',
                    151:          'populate'  => 'Automated Enrollment Manager');
1.88      matthew   152: 
1.48      matthew   153:     $r->print(<<END);
                    154: <p>
1.50      matthew   155: <font size="+1">
1.88      matthew   156:     <a href="/adm/dropadd?action=upload">$Text{'upload'}</a>
1.50      matthew   157: </font>
                    158: </p><p>
                    159: <font size="+1">
1.88      matthew   160:     <a href="/adm/dropadd?action=enrollstudent">$Text{'enrollone'}</a>
1.50      matthew   161: </font>
1.48      matthew   162: </p><p>
1.50      matthew   163: <font size="+1">
1.88      matthew   164:     <a href="/adm/dropadd?action=modifystudent">$Text{'modify'}</a>
1.50      matthew   165: </font>
1.48      matthew   166: </p><p>
1.50      matthew   167: <font size="+1">
1.88      matthew   168:     <a href="/adm/dropadd?action=classlist">$Text{'view'}</a>
1.50      matthew   169: </font>
1.48      matthew   170: </p><p>
1.50      matthew   171: <font size="+1">
1.88      matthew   172:     <a href="/adm/dropadd?action=drop">$Text{'drop'}</a>
1.50      matthew   173: </font>
1.91      raeburn   174: </p><p>
1.91.2.1! albertel  175: END
        !           176:     if (&localenroll::run() ) {
        !           177: 	$r->print(<<END);
1.91      raeburn   178: <font size="+1">
                    179:     <a href="/adm/populate">$Text{'populate'}</a>
                    180: </font>
1.48      matthew   181: END
1.91.2.1! albertel  182:     }
1.10      www       183: }
                    184: 
1.50      matthew   185: ###############################################################
                    186: ###############################################################
1.89      matthew   187: sub hidden_input {
                    188:     my ($name,$value) = @_;
                    189:     return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'."\n";
                    190: }
                    191: 
1.50      matthew   192: sub print_upload_manager_header {
1.23      albertel  193:     my ($r,$datatoken,$distotal,$krbdefdom)=@_;
1.24      albertel  194:     my $javascript;
1.50      matthew   195:     if (! exists($ENV{'form.upfile_associate'})) {
                    196:         $ENV{'form.upfile_associate'} = 'forward';
                    197:     }
                    198:     if ($ENV{'form.associate'} eq 'Reverse Association') {
                    199:         if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
                    200:             $ENV{'form.upfile_associate'} = 'reverse';
                    201:         } else {
                    202:             $ENV{'form.upfile_associate'} = 'forward';
                    203:         }
                    204:     }
1.24      albertel  205:     if ($ENV{'form.upfile_associate'} eq 'reverse') {
1.50      matthew   206: 	$javascript=&upload_manager_javascript_reverse_associate();
1.24      albertel  207:     } else {
1.50      matthew   208: 	$javascript=&upload_manager_javascript_forward_associate();
1.24      albertel  209:     }
1.89      matthew   210:     my $javascript_validations=&javascript_validations('auth',$krbdefdom);
1.82      www       211:     my $checked=(($ENV{'form.noFirstLine'})?' checked="1"':'');
1.88      matthew   212:     $r->print('<h3>'.&mt('Uploading Class List')."</h3>\n".
                    213:               "<hr>\n".
                    214:               '<h3>'.&mt('Identify fields')."</h3>\n");
                    215:     $r->print("<p>\n".
                    216:               &mt('Total number of records found in file: [_1].',$distotal).
                    217:               "\n".
                    218:               "</p><hr>\n");
1.89      matthew   219:     $r->print(&mt('Enter as many fields as you can. '.
                    220:                   'The system will inform you and bring you back to '.
                    221:                   'this page if the data selected is insufficient to '.
                    222:                   'enroll students in your class.')."<hr>\n");
                    223:     $r->print(&hidden_input('action','upload').
                    224:               &hidden_input('state','got_file').
                    225:               &hidden_input('associate','').
                    226:               &hidden_input('datatoken',$datatoken).
                    227:               &hidden_input('fileupload',$ENV{'form.fileupload'}).
                    228:               &hidden_input('upfiletype',$ENV{'form.upfiletype'}).
                    229:               &hidden_input('upfile_associate',$ENV{'form.upfile_associate'}));
                    230:     $r->print('<input type="button" value="Reverse Association" '.
                    231:               'name="'.&mt('Reverse Association').'" '.
                    232:               'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
                    233:     $r->print('<input type="checkbox" name="noFirstLine" $checked />'.
                    234:               &mt('Ignore First Line'));
                    235:     $r->print("<hr />\n".
                    236:               '<script type="text/javascript" language="Javascript">'."\n".
                    237:               $javascript."\n".$javascript_validations.'</script>');
1.24      albertel  238: }
                    239: 
1.50      matthew   240: ###############################################################
                    241: ###############################################################
1.24      albertel  242: sub javascript_validations {
1.89      matthew   243:     my ($mode,$krbdefdom)=@_;
                    244:     my $authheader;
                    245:     if ($mode eq 'auth') {
                    246:         my %param = ( formname => 'studentform',
                    247:                       kerb_def_dom => $krbdefdom );
                    248:         $authheader = &Apache::loncommon::authform_header(%param);
1.91      raeburn   249:     } elsif ($mode eq 'createcourse') {
                    250:         my %param = ( formname => 'ccrs',
                    251:                   kerb_def_dom => $krbdefdom );
                    252:         $authheader = &Apache::loncommon::authform_header(%param);
1.89      matthew   253:     }
1.91      raeburn   254:     
1.89      matthew   255:     my %alert = &Apache::lonlocal::texthash
                    256:         (username => 'You need to specify the username field.',
                    257:          authen   => 'You must choose an authentication type.',
                    258:          krb      => 'You need to specify the Kerberos domain.',
                    259:          ipass    => 'You need to specify the initial password.',
                    260:          name     => 'The optional name field was not specified.',
                    261:          snum     => 'The optional student number field was not specified.',
                    262:          section  => 'The optional section or group field was not specified.', 
                    263:          email    => 'The optional email address field was not specified.',
                    264:          continue => 'Continue enrollment?',
                    265:          );
                    266:     
                    267: #    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
                    268:     my $function_name =(<<END);
1.73      www       269: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
1.89      matthew   270: END
                    271:     my $auth_checks = (<<END);
1.3       www       272:     var foundatype=0;
1.91      raeburn   273: END
                    274:     unless ($mode eq 'createcourse') {
                    275:         $auth_checks .= (<<END);
1.3       www       276:     if (founduname==0) {
1.89      matthew   277: 	alert('$alert{'username'}');
1.3       www       278:         return;
                    279:     }
1.91      raeburn   280: END
                    281:     }
                    282:     $auth_checks .= (<<END);
1.61      matthew   283:     // alert('current.radiovalue = '+current.radiovalue);
1.29      matthew   284:     if (current.radiovalue == null || current.radiovalue == 'nochange') {
1.28      matthew   285:         // They did not check any of the login radiobuttons.
1.89      matthew   286:         alert('$alert{'authen'}');
1.28      matthew   287:         return;
                    288:     }
                    289:     foundatype=1;
1.29      matthew   290:     if (current.argfield == null || current.argfield == '') {
1.28      matthew   291:         var alertmsg = '';
1.29      matthew   292:         switch (current.value) {
1.28      matthew   293:             case 'krb': 
1.89      matthew   294:                 alertmsg = '$alert{'krb'}';
1.28      matthew   295:                 break;
                    296:             case 'loc':
                    297:             case 'fsys':
1.89      matthew   298:                 alertmsg = '$alert{'ipass'}';
1.28      matthew   299:                 break;
                    300:             case 'fsys':
                    301:                 alertmsg = '';
                    302:                 break;
                    303:             default: 
                    304:                 alertmsg = '';
1.3       www       305:         }
1.28      matthew   306:         if (alertmsg != '') {
                    307:             alert(alertmsg);
1.3       www       308:             return;
                    309:         }
                    310:     }
1.89      matthew   311: END
1.91      raeburn   312:     my $optional_checks = '';
                    313:     if ($mode eq 'createcourse') {
                    314:         $optional_checks = (<<END);
                    315:     vf.submit();
                    316: }
                    317: END
                    318:     } else {
                    319:         $optional_checks = (<<END);
1.89      matthew   320:     var message='';
                    321:     if (foundname==0) { 
                    322:         message='$alert{'name'}';
1.24      albertel  323:     }
1.89      matthew   324:     if (foundid==0) { 
                    325:         if (message!='') { 
                    326:             message+='\\n'; 
                    327:         }
                    328:         message+='$alert{'snum'}';
                    329:     }
                    330:     if (foundsec==0) {
                    331:         if (message!='') {
                    332:             message+='\\n';
                    333:         } 
                    334:         message+='$alert{'section'}';
                    335:     }
                    336:     if (foundemail==0) {
                    337:         if (message!='') {
                    338:             message+='\\n';
                    339:         }
                    340:         message+='$alert{'email'}';
1.74      matthew   341:     }
                    342:     if (message!='') {
1.89      matthew   343:         message+= '\\n$alert{'continue'}';
                    344:         if (confirm(message)) {
                    345:             vf.state.value='enrolling';
                    346:             vf.submit();
                    347:         }
1.74      matthew   348:     } else {
1.89      matthew   349:         vf.state.value='enrolling';
                    350:         vf.submit();
1.74      matthew   351:     }
                    352: }
1.89      matthew   353: END
1.91      raeburn   354:     }
1.89      matthew   355:     my $result = $function_name;
1.91      raeburn   356:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') ) {
1.89      matthew   357:         $result .= $auth_checks;
                    358:     }
                    359:     $result .= $optional_checks;
1.91      raeburn   360:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') ) {
1.89      matthew   361:         $result .= $authheader;
                    362:     }
                    363:     return $result;
1.74      matthew   364: }
                    365: 
1.50      matthew   366: ###############################################################
                    367: ###############################################################
                    368: sub upload_manager_javascript_forward_associate {
1.24      albertel  369:     return(<<ENDPICK);
                    370: function verify(vf) {
                    371:     var founduname=0;
                    372:     var foundpwd=0;
                    373:     var foundname=0;
                    374:     var foundid=0;
                    375:     var foundsec=0;
1.73      www       376:     var foundemail=0;
1.24      albertel  377:     var tw;
                    378:     for (i=0;i<=vf.nfields.value;i++) {
                    379:         tw=eval('vf.f'+i+'.selectedIndex');
                    380:         if (tw==1) { founduname=1; }
                    381:         if ((tw>=2) && (tw<=6)) { foundname=1; }
                    382:         if (tw==7) { foundid=1; }
                    383:         if (tw==8) { foundsec=1; }
                    384:         if (tw==9) { foundpwd=1; }
1.73      www       385:         if (tw==10) { foundemail=1; }
1.24      albertel  386:     }
1.73      www       387:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
1.24      albertel  388: }
                    389: 
1.49      matthew   390: //
                    391: // vf = this.form
                    392: // tf = column number
                    393: //
                    394: // values of nw
                    395: //
                    396: // 0 = none
                    397: // 1 = username
                    398: // 2 = names (lastname, firstnames)
                    399: // 3 = fname (firstname)
                    400: // 4 = mname (middlename)
                    401: // 5 = lname (lastname)
                    402: // 6 = gen   (generation)
                    403: // 7 = id
                    404: // 8 = section
                    405: // 9 = ipwd  (password)
1.73      www       406: // 10 = email address
                    407: 
1.24      albertel  408: function flip(vf,tf) {
                    409:    var nw=eval('vf.f'+tf+'.selectedIndex');
                    410:    var i;
1.49      matthew   411:    // make sure no other columns are labeled the same as this one
1.24      albertel  412:    for (i=0;i<=vf.nfields.value;i++) {
                    413:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
                    414:           eval('vf.f'+i+'.selectedIndex=0;')
                    415:       }
                    416:    }
1.49      matthew   417:    // If we set this to 'lastname, firstnames', clear out all the ones
                    418:    // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
1.24      albertel  419:    if (nw==2) {
                    420:       for (i=0;i<=vf.nfields.value;i++) {
                    421:          if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
                    422:              (eval('vf.f'+i+'.selectedIndex')<=6)) {
                    423:              eval('vf.f'+i+'.selectedIndex=0;')
                    424:          }
                    425:       }
                    426:    }
1.49      matthew   427:    // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
                    428:    // clear out any that are set to 'lastname, firstnames' (2)
1.24      albertel  429:    if ((nw>=3) && (nw<=6)) {
                    430:       for (i=0;i<=vf.nfields.value;i++) {
                    431:          if (eval('vf.f'+i+'.selectedIndex')==2) {
                    432:              eval('vf.f'+i+'.selectedIndex=0;')
                    433:          }
                    434:       }
                    435:    }
1.49      matthew   436:    // If we set the password, make the password form below correspond to 
                    437:    // the new value.
1.24      albertel  438:    if (nw==9) {
1.28      matthew   439:        changed_radio('int',document.studentform);
                    440:        set_auth_radio_buttons('int',document.studentform);
                    441:        vf.intarg.value='';
                    442:        vf.krbarg.value='';
1.24      albertel  443:        vf.locarg.value='';
                    444:    }
                    445: }
                    446: 
                    447: function clearpwd(vf) {
                    448:     var i;
                    449:     for (i=0;i<=vf.nfields.value;i++) {
                    450:         if (eval('vf.f'+i+'.selectedIndex')==9) {
                    451:             eval('vf.f'+i+'.selectedIndex=0;')
                    452:         }
                    453:     }
                    454: }
                    455: 
                    456: ENDPICK
                    457: }
                    458: 
1.50      matthew   459: ###############################################################
                    460: ###############################################################
                    461: sub upload_manager_javascript_reverse_associate {
1.24      albertel  462:     return(<<ENDPICK);
                    463: function verify(vf) {
                    464:     var founduname=0;
                    465:     var foundpwd=0;
                    466:     var foundname=0;
                    467:     var foundid=0;
                    468:     var foundsec=0;
                    469:     var tw;
                    470:     for (i=0;i<=vf.nfields.value;i++) {
                    471:         tw=eval('vf.f'+i+'.selectedIndex');
                    472:         if (i==0 && tw!=0) { founduname=1; }
                    473:         if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
                    474:         if (i==6 && tw!=0) { foundid=1; }
                    475:         if (i==7 && tw!=0) { foundsec=1; }
                    476:         if (i==8 && tw!=0) { foundpwd=1; }
                    477:     }
                    478:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
                    479: }
                    480: 
                    481: function flip(vf,tf) {
                    482:    var nw=eval('vf.f'+tf+'.selectedIndex');
                    483:    var i;
                    484:    // picked the all one one name field, reset the other name ones to blank
                    485:    if (tf==1 && nw!=0) {
                    486:       for (i=2;i<=5;i++) {
                    487:          eval('vf.f'+i+'.selectedIndex=0;')
                    488:       }
                    489:    }
                    490:    //picked one of the piecewise name fields, reset the all in
                    491:    //one field to blank
                    492:    if ((tf>=2) && (tf<=5) && (nw!=0)) {
                    493:       eval('vf.f1.selectedIndex=0;')
                    494:    }
                    495:    // intial password specified, pick internal authentication
                    496:    if (tf==8 && nw!=0) {
1.28      matthew   497:        changed_radio('int',document.studentform);
                    498:        set_auth_radio_buttons('int',document.studentform);
                    499:        vf.krbarg.value='';
                    500:        vf.intarg.value='';
1.24      albertel  501:        vf.locarg.value='';
                    502:    }
                    503: }
                    504: 
                    505: function clearpwd(vf) {
                    506:     var i;
                    507:     if (eval('vf.f8.selectedIndex')!=0) {
                    508:         eval('vf.f8.selectedIndex=0;')
                    509:     }
                    510: }
1.2       www       511: ENDPICK
1.23      albertel  512: }
1.10      www       513: 
1.50      matthew   514: ###############################################################
                    515: ###############################################################
                    516: sub print_upload_manager_footer {
1.23      albertel  517:     my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
1.64      albertel  518: 
                    519:     my ($krbdef,$krbdefdom) =
                    520:         &Apache::loncommon::get_kerberos_defaults($defdom);
                    521:     my %param = ( formname => 'document.studentform',
                    522:                   kerb_def_dom => $krbdefdom,
                    523:                   kerb_def_auth => $krbdef
                    524:                   );
1.28      matthew   525:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
                    526:     my $intform = &Apache::loncommon::authform_internal(%param);
                    527:     my $locform = &Apache::loncommon::authform_local(%param);
1.31      matthew   528:     my $domform = &domain_form($defdom);
1.68      matthew   529:     my $date_table = &date_setting_table();
1.90      matthew   530:     my $Str = "</table>\n";
                    531:     $Str .= &hidden_input('nfields',$i);
                    532:     $Str .= &hidden_input('keyfields',$keyfields);
                    533:     $Str .= '<h3>'.&mt('Login Type')."</h3>\n";
                    534:     $Str .= "<p>\n".
                    535:         &mt('Note: this will not take effect if the user already exists').
                    536:         "</p><p>\n";
                    537:     $Str .= $krbform."\n</p><p>\n".
                    538:         $intform."\n</p><p>\n".
                    539:         $locform."\n</p>\n";
                    540:     $Str .= '<h3>'.&mt('LON-CAPA Domain for Students')."</h3>\n";
                    541:     $Str .= "<p>\n".&mt('LON-CAPA domain: [_1]',$domform)."\n</p>\n";
                    542:     $Str .= "<h3>".&mt('Starting and Ending Dates')."</h3>\n";
                    543:     $Str .= "<p>\n".$date_table."</p>\n";
                    544:     $Str .= "<h3>".&mt('Full Update')."</h3>\n";
                    545:     $Str .= '<input type="checkbox" name="fullup" value="yes">'.
                    546:         ' '.&mt('Full update (also print list of users not enrolled anymore)').
                    547:         "</p>\n";
                    548:     $Str .= "<h3>".&mt('Student Number')."</h3>\n";
                    549:     $Str .= "<p>\n".'<input type="checkbox" name="forceid" value="yes">';
                    550:     $Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
                    551:                 'of Conflicting IDs (only do if you know what you are doing)').
                    552:                 "\n</p><p>\n";
                    553:     $Str .= '<input type="button" onClick="javascript:verify(this.form)" '.
                    554:         'value="Update Courselist" />'."<br />\n";
                    555:     $Str .= &mt('Note: for large courses, this operation may be time '.
                    556:                 'consuming');
                    557:     $r->print($Str);
                    558:     return;
1.23      albertel  559: }
1.24      albertel  560: 
1.90      matthew   561: ###############################################################
                    562: ###############################################################
1.50      matthew   563: sub print_upload_manager_form {
1.23      albertel  564:     my $r=shift;
1.82      www       565:     my $firstLine;
1.24      albertel  566:     my $datatoken;
                    567:     if (!$ENV{'form.datatoken'}) {
1.90      matthew   568:         $datatoken=&Apache::loncommon::upfile_store($r);
1.24      albertel  569:     } else {
1.90      matthew   570:         $datatoken=$ENV{'form.datatoken'};
                    571:         &Apache::loncommon::load_tmp_file($r);
1.24      albertel  572:     }
                    573:     my @records=&Apache::loncommon::upfile_record_sep();
1.90      matthew   574:     if($ENV{'form.noFirstLine'}){
                    575:         $firstLine=shift(@records);
                    576:     }
1.23      albertel  577:     my $total=$#records;
                    578:     my $distotal=$total+1;
                    579:     my $today=time;
                    580:     my $halfyear=$today+15552000;
1.85      matthew   581:     my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1.64      albertel  582:     my ($krbdef,$krbdefdom) =
                    583:         &Apache::loncommon::get_kerberos_defaults($defdom);
1.50      matthew   584:     &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
1.24      albertel  585:     my $i;
                    586:     my $keyfields;
1.23      albertel  587:     if ($total>=0) {
1.90      matthew   588:         my @field=(['username',&mt('Username')],
                    589:                    ['names',&mt('Last Name, First Names')],
                    590:                    ['fname',&mt('First Name')],
                    591:                    ['mname',&mt('Middle Names/Initials')],
                    592:                    ['lname',&mt('Last Name')],
                    593:                    ['gen',&mt('Generation')],
                    594:                    ['id',&mt('ID/Student Number')],
                    595:                    ['sec',&mt('Group/Section')],
                    596:                    ['ipwd',&mt('Initial Password')],
                    597:                    ['email',&mt('EMail Address')]);
1.24      albertel  598: 	if ($ENV{'form.upfile_associate'} eq 'reverse') {	
                    599: 	    &Apache::loncommon::csv_print_samples($r,\@records);
1.90      matthew   600: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,
                    601:                                                           \@field);
                    602: 	    foreach (@field) { 
                    603:                 $keyfields.=$_->[0].','; 
                    604:             }
1.24      albertel  605: 	    chop($keyfields);
                    606: 	} else {
1.90      matthew   607: 	    unshift(@field,['none','']);
                    608: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
                    609:                                                             \@field);
1.24      albertel  610: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
                    611: 	    $keyfields=join(',',sort(keys(%sone)));
1.23      albertel  612: 	}
                    613:     }
1.50      matthew   614:     &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
1.10      www       615: }
                    616: 
1.90      matthew   617: ###############################################################
                    618: ###############################################################
1.12      www       619: sub enroll_single_student {
                    620:     my $r=shift;
1.80      matthew   621:     # Remove non alphanumeric values from section
                    622:     $ENV{'form.csec'}=~s/\W//g;
1.68      matthew   623:     #
                    624:     # We do the dates first because the action of making them the defaul
                    625:     # in the course is entirely seperate from the action of enrolling the
                    626:     # student.  Also, a failure in setting the dates as default is not fatal
                    627:     # to the process of enrolling / modifying a student.
                    628:     my ($startdate,$enddate) = &get_dates_from_form();
                    629:     if ($ENV{'form.makedatesdefault'}) {
                    630:         $r->print(&make_dates_default($startdate,$enddate));
                    631:     }
                    632: 
1.12      www       633:     $r->print('<h3>Enrolling Student</h3>');
1.54      matthew   634:     $r->print('<p>Enrolling '.$ENV{'form.cuname'}." \@ ".
1.34      matthew   635:               $ENV{'form.lcdomain'}.'</p>');
1.12      www       636:     if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
1.31      matthew   637:         ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
                    638:         # Deal with home server selection
                    639:         my $domain=$ENV{'form.lcdomain'};
                    640:         my $desiredhost = $ENV{'form.lcserver'};
                    641:         if (lc($desiredhost) eq 'default') {
                    642:             $desiredhost = undef;
                    643:         } else {
1.45      matthew   644:             my %home_servers =&Apache::loncommon::get_library_servers($domain);
1.31      matthew   645:             if (! exists($home_servers{$desiredhost})) {
                    646:                 $r->print('<font color="#ff0000">Error:</font>'.
                    647:                           'Invalid home server specified');
                    648:                 return;
                    649:             }
                    650:         }
1.34      matthew   651:         $r->print(" with server $desiredhost :") if (defined($desiredhost));
1.31      matthew   652:         # End of home server selection logic
1.12      www       653: 	my $amode='';
                    654:         my $genpwd='';
                    655:         if ($ENV{'form.login'} eq 'krb') {
1.47      albertel  656:            $amode='krb';
                    657: 	   $amode.=$ENV{'form.krbver'};
1.28      matthew   658:            $genpwd=$ENV{'form.krbarg'};
1.12      www       659:         } elsif ($ENV{'form.login'} eq 'int') {
1.26      matthew   660:            $amode='internal';
1.28      matthew   661:            $genpwd=$ENV{'form.intarg'};
1.15      albertel  662:         }  elsif ($ENV{'form.login'} eq 'loc') {
                    663: 	    $amode='localauth';
                    664: 	    $genpwd=$ENV{'form.locarg'};
                    665: 	    if (!$genpwd) { $genpwd=" "; }
                    666: 	}
1.34      matthew   667:         my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'},
                    668:                                                    $ENV{'form.lcdomain'});
                    669:         if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
1.55      matthew   670:             # Clean out any old roles the student has in this class.
1.33      matthew   671:             &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
                    672:                            $ENV{'request.course.id'},$ENV{'form.csec'},
                    673:                             $desiredhost);
1.55      matthew   674:             my $login_result = &Apache::lonnet::modifystudent
                    675:                 ($ENV{'form.lcdomain'},$ENV{'form.cuname'},
                    676:                  $ENV{'form.cstid'},$amode,$genpwd,
                    677:                  $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
                    678:                  $ENV{'form.clast'},$ENV{'form.cgen'},
1.67      matthew   679:                  $ENV{'form.csec'},$enddate,
                    680:                  $startdate,$ENV{'form.forceid'},
1.55      matthew   681:                  $desiredhost);
                    682:             if ($login_result =~ /^ok/) {
                    683:                 $r->print($login_result);
                    684:                 $r->print("<p> If active, the new role will be available ".
                    685:                           "when the student next logs in to LON-CAPA.</p>");
                    686:             } else {
                    687:                 $r->print("unable to enroll: ".$login_result);
                    688:             }
1.12      www       689: 	} else {
1.79      matthew   690:             $r->print('<p><font color="#ff0000">ERROR</font>&nbsp;');
                    691:             if ($amode =~ /^krb/) {
                    692:                 $r->print('Missing Kerberos domain information.  ');
                    693:             } else {
                    694:                 $r->print('Invalid login mode or password.  ');
                    695:             }
                    696:             $r->print('<b>Unable to enroll '.$ENV{'form.cuname'}.'.</b></p>');
                    697:         }
1.12      www       698:     } else {
                    699:         $r->print('Invalid username or domain');
1.26      matthew   700:     }    
1.12      www       701: }
                    702: 
1.68      matthew   703: sub setup_date_selectors {
1.91      raeburn   704:     my ($starttime,$endtime,$mode) = @_;
1.68      matthew   705:     if (! defined($starttime)) {
                    706:         $starttime = time;
1.91      raeburn   707:         unless ($mode eq 'createcourse') {
                    708:             if (exists($ENV{'course.'.$ENV{'request.course.id'}.
1.68      matthew   709:                             '.default_enrollment_start_date'})) {
1.91      raeburn   710:                 $starttime = $ENV{'course.'.$ENV{'request.course.id'}.
1.68      matthew   711:                                   '.default_enrollment_start_date'};
1.91      raeburn   712:             }
1.68      matthew   713:         }
                    714:     }
                    715:     if (! defined($endtime)) {
                    716:         $endtime = time+(6*30*24*60*60); # 6 months from now, approx
1.91      raeburn   717:         unless ($mode eq 'createcourse') {
                    718:             if (exists($ENV{'course.'.$ENV{'request.course.id'}.
1.68      matthew   719:                             '.default_enrollment_end_date'})) {
1.91      raeburn   720:                 $endtime = $ENV{'course.'.$ENV{'request.course.id'}.
1.68      matthew   721:                                 '.default_enrollment_end_date'};
1.91      raeburn   722:             }
1.68      matthew   723:         }
                    724:     }
                    725:     my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
                    726:                                                             'startdate',
                    727:                                                             $starttime);
                    728:     my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
                    729:                                                           'enddate',
                    730:                                                           $endtime);
1.91      raeburn   731:     if ($mode eq 'createcourse') {
                    732:         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
                    733:                                                             'startdate',
                    734:                                                             $starttime);
                    735:         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
                    736:                                                           'enddate',
                    737:                                                           $endtime);
                    738:     }
1.68      matthew   739:     return ($startdateform,$enddateform);
                    740: }
                    741: 
                    742: sub get_dates_from_form {
                    743:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
                    744:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate');
                    745:     if ($ENV{'form.no_end_date'}) {
                    746:         $enddate = 0;
                    747:     }
                    748:     return ($startdate,$enddate);
                    749: }
                    750: 
                    751: sub date_setting_table {
1.91      raeburn   752:     my ($starttime,$endtime,$mode) = @_;
                    753:     my ($startform,$endform)=&setup_date_selectors($starttime,$endtime,$mode);
1.68      matthew   754:     my $dateDefault = '<nobr>'.
                    755:         '<input type="checkbox" name="makedatesdefault" />'.
                    756:         ' make these dates the default for future enrollment';
1.91      raeburn   757:     if ($mode eq 'createcourse') {
                    758:         $dateDefault = '&nbsp;';
                    759:     }
1.68      matthew   760:     my $perpetual = '<nobr><input type="checkbox" name="no_end_date"';
                    761:     if (defined($endtime) && $endtime == 0) {
                    762:         $perpetual .= ' checked';
                    763:     }
                    764:     $perpetual.= ' />'.' no ending date</nobr>';
                    765:     my $result = '';
                    766:     $result .= "<table>\n";
                    767:     $result .= '<tr><td align="right">Starting Date</td>'.
                    768:         '<td>'.$startform.'</td>'.
                    769:         '<td>'.$dateDefault.'</td>'."</tr>\n";
                    770:     $result .= '<tr><td align="right">Ending Date</td>'.
                    771:         '<td>'.$endform.'</td>'.
                    772:         '<td>'.$perpetual.'</td>'."</tr>\n";
                    773:     $result .= "</table>\n";
                    774:     return $result;
                    775: }
                    776: 
                    777: sub make_dates_default {
                    778:     my ($startdate,$enddate) = @_;
                    779:     my $result = '';
                    780:     my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
                    781:     my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
                    782:     my $put_result = &Apache::lonnet::put('environment',
                    783:             {'default_enrollment_start_date'=>$startdate,
                    784:              'default_enrollment_end_date'  =>$enddate},$dom,$crs);
                    785:     if ($put_result eq 'ok') {
                    786:         $result .= "Set default start and end dates for course<br />";
1.69      matthew   787:         #
                    788:         # Refresh the course environment
                    789:         &Apache::lonnet::coursedescription($ENV{'request.course.id'});
1.68      matthew   790:     } else {
                    791:         $result .= "Unable to set default dates for course:".$put_result.
                    792:             '<br />';
                    793:     }
                    794:     return $result;
                    795: }
                    796: 
1.74      matthew   797: ##
                    798: ## Single student enrollment routines (some of them)
                    799: ##
                    800: sub get_student_username_domain_form {
                    801:     my $r = shift;
                    802:     my $domform = &Apache::loncommon::select_dom_form
1.85      matthew   803:         ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'},'cudomain',0);
1.74      matthew   804:     $r->print(<<END);
                    805: <input type="hidden" name="action" value="enrollstudent" />
                    806: <input type="hidden" name="state"  value="gotusername" />
                    807: <h3>Enroll One Student</h3>
                    808: <table>
                    809: <tr><th>Username:</th>
                    810:     <td><input type="text" name="cuname"  size="15" /></td></tr>
                    811: <tr><th>Domain:</th>
                    812:     <td>$domform</td></tr>
                    813: <tr><th>&nbsp;</th>
                    814:     <td>
                    815:     <input type="submit" name="Begin Enrollment" value="Begin Enrollment" />
                    816:     </td></tr>
                    817: </table>
                    818: END
                    819:     return;
                    820: }
                    821: 
1.50      matthew   822: sub print_enroll_single_student_form {
1.10      www       823:     my $r=shift;
1.40      matthew   824:     $r->print("<h3>Enroll One Student</h3>");
1.74      matthew   825:     #
                    826:     my $username = $ENV{'form.cuname'};
                    827:     my $domain   = $ENV{'form.cudomain'};
                    828:     my $home = &Apache::lonnet::homeserver($username,$domain);
                    829:     # $new_user flags whether we are creating a new user or using an old one
                    830:     my $new_user = 1;
                    831:     if ($home ne 'no_host') {
                    832:         $new_user = 0;
                    833:     }
                    834:     #
                    835:     my $user_data_html = '';
                    836:     my $javascript_validations = '';
                    837:     if ($new_user) {
1.85      matthew   838:         my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1.74      matthew   839:         # Set up authentication forms
                    840:         my ($krbdef,$krbdefdom) =
1.75      matthew   841:             &Apache::loncommon::get_kerberos_defaults($domain);
1.89      matthew   842:         $javascript_validations=&javascript_validations('auth',$krbdefdom);
1.74      matthew   843:         my %param = ( formname => 'document.studentform',
                    844:                       kerb_def_dom => $krbdefdom,
                    845:                       kerb_def_auth => $krbdef
                    846:                       );
                    847:         my $krbform = &Apache::loncommon::authform_kerberos(%param);
                    848:         my $intform = &Apache::loncommon::authform_internal(%param);
                    849:         my $locform = &Apache::loncommon::authform_local(%param);
                    850:         #
                    851:         # Set up domain selection form
                    852:         my $homeserver_form = '';
                    853:         my %servers = &Apache::loncommon::get_library_servers($domain);
                    854:         $homeserver_form = '<select name="lcserver" size="1">'."\n".
                    855:             '<option value="default" selected>default</option>'."\n";
                    856:         while (my ($servername,$serverdescription) = each (%servers)) {
                    857:             $homeserver_form .= '<option value="'.$servername.'">'.
                    858:                 $serverdescription."</option>\n";
                    859:         }
                    860:         $homeserver_form .= "</select>\n";
                    861:         #
                    862:         #
                    863:         $user_data_html = <<END;
                    864: <h3>User Data for $username\@$domain</h3>
                    865: <table>
                    866: <tr><th>First Name:</th>
                    867:     <td><input type="text" name="cfirst"  size="15"></td></tr>
                    868: <tr><th>Middle Name:</th>
                    869:     <td><input type="text" name="cmiddle" size="15"></td></tr>
                    870: <tr><th>Last Name:</th>
                    871:     <td><input type="text" name="clast"   size="15"></td></tr>
                    872: <tr><th>Generation:</th>
                    873:     <td><input type="text" name="cgen"    size="5"> </td></tr>
                    874: <tr><th>Home Server:</th>
                    875:     <td>$homeserver_form</td></tr>
                    876: </table>
                    877: <h3>Password</h3>
                    878: Please select an authentication mechanism
                    879: <table>
                    880: <p>
                    881: $krbform
1.75      matthew   882: <br />
1.74      matthew   883: $intform
1.75      matthew   884: <br />
1.74      matthew   885: $locform
                    886: </p>
                    887: END
                    888:     } else {
                    889:         # User already exists.  Do not worry about authentication
                    890:         my %uenv = &Apache::lonnet::dump('environment',$domain,$username);
1.89      matthew   891:         $javascript_validations = &javascript_validations('noauth');
1.74      matthew   892:         $user_data_html = <<END;
                    893: <h3>User Data for $username\@$domain</h3>
                    894: <input type="hidden" name="lcserver" value="default" />
                    895: <table>
                    896: <tr><th>First Name:</th>
                    897:     <td>
                    898:     <input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" />
                    899:     </td></tr>
                    900: <tr><th>Middle Name:</th>
                    901:     <td>
                    902:     <input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" />
                    903:     </td></tr>
                    904: <tr><th>Last Name:</th>
                    905:     <td>
                    906:     <input type="text" name="clast"value="$uenv{'lastname'}" size="15" />
                    907:     </td></tr>
                    908: <tr><th>Generation:</th>
                    909:     <td>
                    910:     <input type="text" name="cgen" value="$uenv{'generation'}" size="5" />
                    911:     </td></tr>
                    912: </table>
                    913: END
                    914:     }
1.68      matthew   915:     my $date_table = &date_setting_table();
1.74      matthew   916:         # Print it all out
1.50      matthew   917:     $r->print(<<END);
1.74      matthew   918: <input type="hidden" name="action" value="enrollstudent" />
                    919: <input type="hidden" name="state"  value="done" />
                    920: <input type="hidden" name="cuname" value="$username" />
                    921: <input type="hidden" name="lcdomain" value="$domain" />
1.28      matthew   922: <script type="text/javascript" language="Javascript">
1.12      www       923: function verify(vf) {
                    924:     var founduname=0;
                    925:     var foundpwd=0;
                    926:     var foundname=0;
                    927:     var foundid=0;
                    928:     var foundsec=0;
                    929:     var tw;
1.26      matthew   930:     if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') && 
1.31      matthew   931: 	(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
1.12      www       932:         founduname=1;
                    933:     }
1.14      harris41  934:     if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
1.26      matthew   935: 	(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
1.12      www       936:         foundname=1;
                    937:     }
1.14      harris41  938:     if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
1.12      www       939:         foundsec=1;
                    940:     }
1.14      harris41  941:     if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
1.12      www       942: 	foundid=1;
                    943:     }
                    944:     if (founduname==0) {
                    945: 	alert('You need to specify at least the username and domain fields');
                    946:         return;
                    947:     }
1.24      albertel  948:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
1.12      www       949: }
                    950: 
1.24      albertel  951: $javascript_validations
1.12      www       952: 
1.24      albertel  953: function clearpwd(vf) {
                    954:     //nothing else needs clearing
1.15      albertel  955: }
                    956: 
1.12      www       957: </script>
1.11      www       958: 
1.74      matthew   959: $user_data_html
1.50      matthew   960: 
                    961: <h3>Course Data</h3>
                    962: 
                    963: <p>Group/Section: <input type="text" name="csec" size="5" />
                    964: <p>
1.68      matthew   965: $date_table
1.50      matthew   966: </p>
                    967: <h3>ID/Student Number</h3>
                    968: <p>
                    969: ID/Student Number: <input type="text" name="cstid" size="10">
1.26      matthew   970: </p><p>
                    971: <input type="checkbox" name="forceid" value="yes"> 
1.18      www       972: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1.50      matthew   973: (only do if you know what you are doing)
                    974: </p><p>
                    975: <input type="button" onClick="verify(this.form)" value="Enroll as student">
1.26      matthew   976: </p>
1.50      matthew   977: END
                    978:     return;
1.10      www       979: }
                    980: 
                    981: # ========================================================= Menu Phase Two Drop
1.51      matthew   982: sub print_drop_menu {
1.10      www       983:     my $r=shift;
1.40      matthew   984:     $r->print("<h3>Drop Students</h3>");
1.11      www       985:     my $cid=$ENV{'request.course.id'};
1.56      matthew   986:     my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
                    987:     if (! defined($classlist)) {
1.27      matthew   988:         $r->print("There are no students currently enrolled.\n");
1.51      matthew   989:         return;
1.25      matthew   990:     }
1.51      matthew   991:     # Print out the available choices
1.56      matthew   992:     &show_drop_list($r,$classlist,$keylist);
1.51      matthew   993:     return;
1.11      www       994: }
                    995: 
1.40      matthew   996: # ============================================== view classlist
1.50      matthew   997: sub print_html_classlist {
1.40      matthew   998:     my $r=shift;
1.57      matthew   999:     if (! exists($ENV{'form.sortby'})) {
                   1000:         $ENV{'form.sortby'} = 'username';
                   1001:     }
1.59      matthew  1002:     if ($ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
1.57      matthew  1003:         $ENV{'form.Status'} = 'Active';
                   1004:     }
                   1005:     my $status_select = &Apache::lonhtmlcommon::StatusOptions
                   1006:         ($ENV{'form.Status'},'studentform');
1.48      matthew  1007:     $r->print(<<END);
1.58      matthew  1008: <input type="hidden" name="action" value="$ENV{'form.action'}" />
1.57      matthew  1009: <input type="hidden" name="state"  value="" />
1.50      matthew  1010: <p>
1.76      albertel 1011: <font size="+1">Current Class List</font>
1.57      matthew  1012: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1.59      matthew  1013: END
                   1014:     if ($ENV{'form.action'} ne 'modifystudent') {
                   1015:         $r->print(<<END);
1.57      matthew  1016: <font size="+1">
                   1017: <a href="javascript:document.studentform.state.value='csv';document.studentform.submit();">CSV format</a>
1.61      matthew  1018: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1.60      matthew  1019: <a href="javascript:document.studentform.state.value='excel';document.studentform.submit();">Excel format</a>
1.57      matthew  1020: </font>
                   1021: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
1.61      matthew  1022: Student Status:
1.48      matthew  1023: END
1.59      matthew  1024:     }
                   1025:     $r->print($status_select."</p>\n");
1.40      matthew  1026:     my $cid=$ENV{'request.course.id'};
1.56      matthew  1027:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
                   1028:     if (! defined($classlist)) {
1.40      matthew  1029:         $r->print("There are no students currently enrolled.\n");
                   1030:     } else {
                   1031:         # Print out the available choices
1.50      matthew  1032:         if ($ENV{'form.action'} eq 'modifystudent') {
1.53      matthew  1033:             &show_class_list($r,'view','modify','modifystudent',
1.57      matthew  1034:                              $ENV{'form.Status'},$classlist,$keylist);
1.50      matthew  1035:         } else {
1.53      matthew  1036:             &show_class_list($r,'view','aboutme','classlist',
1.57      matthew  1037:                              $ENV{'form.Status'},$classlist,$keylist);
1.50      matthew  1038:         }
1.41      matthew  1039:     }
                   1040: }
                   1041: 
                   1042: # ============================================== view classlist
1.60      matthew  1043: sub print_formatted_classlist {
1.41      matthew  1044:     my $r=shift;
1.60      matthew  1045:     my $mode = shift;
1.41      matthew  1046:     my $cid=$ENV{'request.course.id'};
1.56      matthew  1047:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
                   1048:     if (! defined($classlist)) {
1.41      matthew  1049:         $r->print("There are no students currently enrolled.\n");
                   1050:     } else {
1.60      matthew  1051:         &show_class_list($r,$mode,'nolink','csv',
1.57      matthew  1052:                          $ENV{'form.Status'},$classlist,$keylist);
1.40      matthew  1053:     }
                   1054: }
                   1055: 
                   1056: # =================================================== Show student list to drop
                   1057: sub show_class_list {
1.56      matthew  1058:     my ($r,$mode,$linkto,$action,$statusmode,$classlist,$keylist)=@_;
1.40      matthew  1059:     my $cid=$ENV{'request.course.id'};
1.60      matthew  1060:     #
                   1061:     # Variables for excel output
                   1062:     my ($excel_workbook, $excel_sheet, $excel_filename,$row);
                   1063:     #
1.53      matthew  1064:     my $sortby = $ENV{'form.sortby'};
                   1065:     if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
                   1066:         $sortby = 'username';
                   1067:     }
1.42      matthew  1068:     # Print out header 
1.41      matthew  1069:     if ($mode eq 'view') {
1.50      matthew  1070:         if ($linkto eq 'aboutme') {
1.56      matthew  1071:             $r->print('Select a user name to view the users personal page.');
1.50      matthew  1072:         } elsif ($linkto eq 'modify') {
                   1073:             $r->print('Select a user name to modify the students information');
                   1074:         }
1.41      matthew  1075:         $r->print(<<END);
1.59      matthew  1076: 
1.53      matthew  1077: <input type="hidden" name="sortby" value="$sortby" />
1.59      matthew  1078: <input type="hidden" name="sname"  value="" />
                   1079: <input type="hidden" name="sdom"   value="" />
1.40      matthew  1080: <p>
                   1081: <table border=2>
1.53      matthew  1082: <tr><th>
1.57      matthew  1083:        <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">username</a>
1.53      matthew  1084:     </th><th>
1.57      matthew  1085:        <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">domain</a>
1.53      matthew  1086:     </th><th>
1.57      matthew  1087:        <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
1.53      matthew  1088:     </th><th>
1.57      matthew  1089:        <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">student name</a>
1.53      matthew  1090:     </th><th>
1.57      matthew  1091:        <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">section</a>
1.53      matthew  1092:     </th>
                   1093: </tr>
1.40      matthew  1094: END
1.41      matthew  1095:     } elsif ($mode eq 'csv') {
1.58      matthew  1096:         if($statusmode eq 'Expired') {
                   1097:             $r->print('"Students with expired roles"');
                   1098:         }
                   1099:         if ($statusmode eq 'Any') {
                   1100:             $r->print('"'.join('","',("username","domain","ID","student name",
                   1101:                                       "section","status")).'"'."\n");
                   1102:         } else {
                   1103:             $r->print('"'.join('","',("username","domain","ID","student name",
                   1104:                                       "section")).'"'."\n");
                   1105:         }
1.60      matthew  1106:     } elsif ($mode eq 'excel') {
                   1107:         # Create the excel spreadsheet
                   1108:         $excel_filename = '/prtspool/'.
                   1109:             $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
                   1110:                 time.'_'.rand(1000000000).'.xls';
                   1111:         $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
                   1112:                                                        $excel_filename);
                   1113:         $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
                   1114:         $excel_sheet = $excel_workbook->addworksheet('classlist');
                   1115:         #
1.76      albertel 1116:         my $description = 'Class List for '.
1.60      matthew  1117:             $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
                   1118:         $excel_sheet->write($row++,0,$description);
                   1119:         #
                   1120:         $excel_sheet->write($row++,0,["username","domain","ID",
                   1121:                                       "student name","section","status"]);
1.41      matthew  1122:     }
1.56      matthew  1123:     #
                   1124:     # Sort the students
                   1125:     my %index;
                   1126:     my $i;
                   1127:     foreach (@$keylist) {
                   1128:         $index{$_} = $i++;
                   1129:     }
                   1130:     my $index  = $index{$sortby};
                   1131:     my $second = $index{'username'};
                   1132:     my $third  = $index{'domain'};
1.53      matthew  1133:     my @Sorted_Students = sort {
1.56      matthew  1134:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
                   1135:             ||
                   1136:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
                   1137:             ||
                   1138:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
                   1139:         } (keys(%$classlist));
1.53      matthew  1140:     foreach my $student (@Sorted_Students) {
1.56      matthew  1141:         my $username = $classlist->{$student}->[$index{'username'}];
                   1142:         my $domain   = $classlist->{$student}->[$index{'domain'}];
                   1143:         my $section  = $classlist->{$student}->[$index{'section'}];
                   1144:         my $name     = $classlist->{$student}->[$index{'fullname'}];
                   1145:         my $id       = $classlist->{$student}->[$index{'id'}];
                   1146:         my $status   = $classlist->{$student}->[$index{'status'}];
1.57      matthew  1147:         next if (($statusmode ne 'Any') && ($status ne $statusmode));
1.51      matthew  1148:         if ($mode eq 'view') {
                   1149:             $r->print("<tr>\n    <td>\n        ");
                   1150:             if ($linkto eq 'nothing') {
                   1151:                 $r->print($username);
                   1152:             } elsif ($linkto eq 'aboutme') {
                   1153:                 $r->print(&Apache::loncommon::aboutmewrapper($username,
                   1154:                                                              $username,
                   1155:                                                              $domain));
                   1156:             } elsif ($linkto eq 'modify') {
1.59      matthew  1157:                 $r->print('<a href="'.
                   1158:                           "javascript:document.studentform.sname.value='".
                   1159:                           $username.
                   1160:                           "';document.studentform.sdom.value='".$domain.
                   1161:                           "';document.studentform.state.value='selected".
                   1162:                           "';document.studentform.submit();".'">'.
1.53      matthew  1163:                           $username."</a>\n");
1.50      matthew  1164:             }
1.51      matthew  1165:             $r->print(<<"END");
1.50      matthew  1166:     </td>
1.51      matthew  1167:     <td>$domain</td>
                   1168:     <td>$id</td>
                   1169:     <td>$name</td>
                   1170:     <td>$section</td>
1.40      matthew  1171: </tr>
                   1172: END
1.51      matthew  1173:         } elsif ($mode eq 'csv') {
                   1174:             # no need to bother with $linkto
                   1175:             my @line = ();
                   1176:             foreach ($username,$domain,$id,$name,$section) {
                   1177:                 push @line,&Apache::loncommon::csv_translate($_);
1.58      matthew  1178:             }
                   1179:             if ($statusmode eq 'Any') {
                   1180:                 push @line,&Apache::loncommon::csv_translate($status);
1.41      matthew  1181:             }
1.51      matthew  1182:             my $tmp = $";
                   1183:             $" = '","';
                   1184:             $r->print("\"@line\"\n");
                   1185:             $" = $tmp;
1.60      matthew  1186:         } elsif ($mode eq 'excel') {
                   1187:             $excel_sheet->write($row++,0,[$username,$domain,$id,
                   1188:                                           $name,$section,$status]);
1.40      matthew  1189:         }
                   1190:     }
1.60      matthew  1191:     if ($mode eq 'view') {
                   1192:         $r->print('</table><br>');
                   1193:     } elsif ($mode eq 'excel') {
                   1194:         $excel_workbook->close();
                   1195:         $r->print('<p><a href="'.$excel_filename.'">'.
                   1196:                   'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
                   1197:     }
1.40      matthew  1198: }
                   1199: 
1.50      matthew  1200: 
                   1201: #
                   1202: # print out form for modification of a single students data
                   1203: #
                   1204: sub print_modify_student_form {
                   1205:     my $r = shift();
                   1206:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.59      matthew  1207:                                             ['sdom','sname']);    
1.53      matthew  1208:     my $sname  = $ENV{'form.sname'};
                   1209:     my $sdom   = $ENV{'form.sdom'};
                   1210:     my $sortby = $ENV{'form.sortby'};
1.50      matthew  1211:     # determine the students name information
                   1212:     my %info=&Apache::lonnet::get('environment',
                   1213:                                   ['firstname','middlename',
1.52      matthew  1214:                                    'lastname','generation','id'],
1.50      matthew  1215:                                   $sdom, $sname);
                   1216:     my ($tmp) = keys(%info);
                   1217:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
                   1218:         $r->print('<font color="#ff0000" size="+2">Error</font>'.
                   1219:                   '<p>'.
                   1220:                   'Unable to retrieve environment data for '.$sname.
                   1221:                   'in domain '.$sdom.'</p><p>'.
                   1222:                   'Please contact your LON-CAPA administrator '.
                   1223:                   'regarding this situation.</p></body></html>');
                   1224:         return;
                   1225:     }
                   1226:     # determine the students starting and ending times and section
                   1227:     my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
1.87      matthew  1228:     if ($starttime =~ /^error/) {
                   1229:         $r->print('<h2>Error</h2>');
                   1230:         $r->print('<p>'.$starttime.'</p>');
                   1231:         return;
                   1232:     }
1.50      matthew  1233:     # Deal with date forms
1.68      matthew  1234:     my $date_table = &date_setting_table($starttime,$endtime);
1.59      matthew  1235:     #
                   1236:     if (! exists($ENV{'form.Status'}) || 
                   1237:         $ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
                   1238:         $ENV{'form.Status'} = 'crap';
                   1239:     }
1.50      matthew  1240:     # Make sure student is enrolled in course    
                   1241:     $r->print(<<END);
1.52      matthew  1242: <p>
                   1243: <font size="+1">
                   1244: Only domain coordinators can change a users password.
                   1245: </font>
                   1246: </p>
1.50      matthew  1247: <input type="hidden" name="slogin"  value="$sname"  />
                   1248: <input type="hidden" name="sdomain" value="$sdom" />
                   1249: <input type="hidden" name="action"  value="modifystudent" />
1.53      matthew  1250: <input type="hidden" name="state"   value="done" />
                   1251: <input type="hidden" name="sortby"  value="$sortby" />
1.59      matthew  1252: <input type="hidden" name="Status"  value="$ENV{'form.Status'}" />
                   1253: 
1.50      matthew  1254: <h2>Modify Enrollment for $info{'firstname'} $info{'middlename'} 
                   1255: $info{'lastname'} $info{'generation'}, $sname\@$sdom</h2>
                   1256: <p>
                   1257: <b>Student Name</b>
                   1258: <table>
                   1259: <tr><th>First</th><th>Middle</th><th>Last</th><th>Generation</th></tr>
                   1260: <tr><td>
                   1261: <input type="text" name="firstname"  value="$info{'firstname'}"  /></td><td>
                   1262: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
                   1263: <input type="text" name="lastname"   value="$info{'lastname'}"   /></td><td>
                   1264: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
                   1265: </table>
                   1266: </p><p>
1.52      matthew  1267: <b>Student ID</b>: <input type="text" name="id" value="$info{'id'}" size="12"/>
                   1268: </p><p>
1.53      matthew  1269: <input type="checkbox" name="forceid" > 
                   1270: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
                   1271: (only do if you know what you are doing)
                   1272: </p><p>
1.50      matthew  1273: <b>Section</b>: <input type="text" name="section" value="$section" size="4"/>
                   1274: </p>
1.68      matthew  1275: <p>$date_table</p>
1.50      matthew  1276: <input type="submit" value="Submit Modifications" />
                   1277: </body></html>
                   1278: END
                   1279:     return;
                   1280: }
                   1281: 
                   1282: #
                   1283: # modify a single students section 
                   1284: #
                   1285: sub modify_single_student {
                   1286:     my $r = shift;
1.68      matthew  1287:     #
1.80      matthew  1288:     # Remove non alphanumeric values from the section
                   1289:     $ENV{'form.section'} =~ s/\W//g;
1.77      matthew  1290:     #
1.68      matthew  1291:     # Do the date defaults first
                   1292:     my ($starttime,$endtime) = &get_dates_from_form();
                   1293:     if ($ENV{'form.makedatesdefault'}) {
                   1294:         $r->print(&make_dates_default($starttime,$endtime));
                   1295:     }
1.59      matthew  1296:     # Get the 'sortby' and 'Status' variables so the user goes back to their
                   1297:     # previous screen
1.53      matthew  1298:     my $sortby = $ENV{'form.sortby'};
1.59      matthew  1299:     my $status = $ENV{'form.Status'};
1.53      matthew  1300:     #
                   1301:     # We always need this information
                   1302:     my $slogin     = $ENV{'form.slogin'};
                   1303:     my $sdom       = $ENV{'form.sdomain'};
                   1304:     #
                   1305:     # Get the old data
                   1306:     my %old=&Apache::lonnet::get('environment',
                   1307:                                  ['firstname','middlename',
                   1308:                                   'lastname','generation','id'],
                   1309:                                  $sdom, $slogin);
1.59      matthew  1310:     $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
                   1311:                                                   $ENV{'request.course.id'});
1.53      matthew  1312:     my ($tmp) = keys(%old);
                   1313:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
                   1314:         $r->print("There was an error determining the environment values ".
                   1315:                   " for $slogin \@ $sdom.");
                   1316:         return;
                   1317:     }
                   1318:     undef $tmp;
                   1319:     #
                   1320:     # Get the new data
1.50      matthew  1321:     my $firstname  = $ENV{'form.firstname'};
                   1322:     my $middlename = $ENV{'form.middlename'};
                   1323:     my $lastname   = $ENV{'form.lastname'};
                   1324:     my $generation = $ENV{'form.generation'};
                   1325:     my $section    = $ENV{'form.section'};
                   1326:     my $courseid   = $ENV{'request.course.id'};
1.52      matthew  1327:     my $sid        = $ENV{'form.id'};
1.50      matthew  1328:     my $displayable_starttime = localtime($starttime);
                   1329:     my $displayable_endtime   = localtime($endtime);
1.53      matthew  1330:     # 
                   1331:     # check for forceid override
1.63      matthew  1332:     if ((defined($old{'id'})) && ($old{'id'} ne '') && 
                   1333:         ($sid ne $old{'id'}) && (! exists($ENV{'form.forceid'}))) {
1.53      matthew  1334:         $r->print("<font color=\"ff0000\">You changed the students id ".
                   1335:                   " but did not disable the ID change safeguard.".
                   1336:                   "  The students id will not be changed.</font>");
                   1337:         $sid = $old{'id'};
                   1338:     }
                   1339:     #
1.50      matthew  1340:     # talk to the user about what we are going to do
                   1341:     $r->print(<<END);
1.53      matthew  1342:     <h2>Modifying data for user $slogin \@ $sdom </h2>
1.50      matthew  1343: <h3>Student Information</h3>
1.53      matthew  1344: <table rules="rows" border="1" cellpadding="3" >
                   1345: <tr>
                   1346:     <th> Field </th>
                   1347:     <th> Old Value </th>
                   1348:     <th> New Value </th>
                   1349: </tr>
                   1350: <tr>
                   1351:     <td> <b>First name</b> </td>
                   1352:     <td> $old{'firstname'} </td>
                   1353:     <td> $firstname </td>
                   1354: </tr><tr>
                   1355:     <td> <b>Middle name</b> </td>
                   1356:     <td> $old{'middlename'} </td>
                   1357:     <td> $middlename </td>
                   1358: </tr><tr>
                   1359:     <td> <b>Last name</b> </td>
                   1360:     <td> $old{'lastname'} </td>
                   1361:     <td> $lastname </td>
                   1362: </tr><tr>
                   1363:     <td> <b>Generation</b> </td>
                   1364:     <td> $old{'generation'} </td>
                   1365:     <td> $generation </td>
                   1366: </tr><tr>
                   1367:     <td> <b>ID</b> </td>
                   1368:     <td> $old{'id'} </td>
                   1369:     <td> $sid </td>
1.59      matthew  1370: </tr><tr>
                   1371:     <td> <b>Section</b> </td>
                   1372:     <td> $old{'section'} </td>
                   1373:     <td> $section</td>
1.53      matthew  1374: </tr>
1.50      matthew  1375: </table>
                   1376: <h3>Role Information</h3>
                   1377: <table>
1.68      matthew  1378: <tr><td align="right"><b>Start Time:</b></td><td> $displayable_starttime </td></tr>
                   1379: <tr><td align="right"><b>End Time:</b></td><td> $displayable_endtime   </td></tr>
1.50      matthew  1380: </table>
1.52      matthew  1381: <p>
1.50      matthew  1382: END
1.53      matthew  1383:     #
1.63      matthew  1384:     # Send request(s) to modify data (final undef is for 'desiredhost',
                   1385:     # which is a moot point because the student already has an account.
                   1386:     my $modify_section_results = &modifystudent($sdom,$slogin,
                   1387:                                                 $ENV{'request.course.id'},
                   1388:                                                 $section,undef);
                   1389:     if ($modify_section_results !~ /^ok/) {
                   1390:         $r->print("An error occured during the attempt to change the ".
                   1391:                   "section for this student.<br />");
                   1392:     }
1.52      matthew  1393:     my $roleresults = &Apache::lonnet::modifystudent
1.53      matthew  1394:         ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
                   1395:          $generation,$section,$endtime,$starttime,$ENV{'form.forceid'});
                   1396:     if ($roleresults eq 'refused' ) {
1.50      matthew  1397:         $r->print("Your request to change the role information for this ".
1.53      matthew  1398:                   "student was refused.  You do not appear to have ".
                   1399:                   "sufficient authority to change student information.");
1.50      matthew  1400:     } elsif ($roleresults !~ /ok/) {
                   1401:         $r->print("An error occurred during the attempt to change the role".
1.52      matthew  1402:                   " information for this student.  <br />".
                   1403:                   "The error reported was ".
1.50      matthew  1404:                   $roleresults);
1.53      matthew  1405:         &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
                   1406:                                  " data for ".$slogin." \@ ".$sdom." by ".
                   1407:                                  $ENV{'user.name'}." \@ ".$ENV{'user.domain'}.
                   1408:                                  ":".$roleresults);
1.50      matthew  1409:     } else { # everything is okay!
1.52      matthew  1410:         $r->print("Student information updated successfully. <br />".
                   1411:                   "The student must log out and log in again to see ".
                   1412:                   "these changes.");
1.50      matthew  1413:     }
                   1414:     $r->print(<<END);
1.52      matthew  1415: </p><p>
1.59      matthew  1416: <input type="hidden" name="action" value="modifystudent" />
                   1417: <input type="hidden" name="sortby" value="$sortby" />
                   1418: <input type="hidden" name="Status" value="$status" />
                   1419: <a href="javascript:document.studentform.submit();">Modify another students data</a>
1.50      matthew  1420: </body></html>
                   1421: END
                   1422:     return;
                   1423: }
                   1424: 
                   1425: sub get_enrollment_data {
                   1426:     my ($sname,$sdomain) = @_;
                   1427:     my $courseid = $ENV{'request.course.id'};
                   1428:     $courseid =~ s:_:/:g;
                   1429:     my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
                   1430:     my ($tmp) = keys(%roles);
                   1431:     # Bail out if we were unable to get the students roles
1.87      matthew  1432:     return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
1.50      matthew  1433:     # Go through the roles looking for enrollment in this course
                   1434:     my ($end,$start) = (undef,undef);
                   1435:     my $section = '';
                   1436:     my $count = scalar(keys(%roles));
                   1437:     while (my ($course,$role) = each(%roles)) {
                   1438:         if ($course=~ /^\/$courseid\/*\s*(\w+)*_st$/ ) {
                   1439:             #
                   1440:             # Get active role
                   1441:             $section=$1;
                   1442:             (undef,$end,$start)=split(/\_/,$role);
                   1443:             my $now=time;
                   1444:             my $notactive=0;
                   1445:             if ($start) {
                   1446:                 if ($now<$start) { $notactive=1; }
                   1447:             }
                   1448:             if ($end) {
                   1449:                 if ($now>$end) { $notactive=1; }
                   1450:             } 
                   1451:             unless ($notactive) { return ($start,$end,$section); }
                   1452:         }
                   1453:     }
                   1454:     return ($start,$end,$section);
                   1455: }
                   1456: 
1.56      matthew  1457: #################################################
                   1458: #################################################
                   1459: 
                   1460: =pod
                   1461: 
                   1462: =item show_drop_list
                   1463: 
                   1464: Display a list of students to drop
                   1465: Inputs: 
                   1466: 
                   1467: =over 4
                   1468: 
                   1469: =item $r, Apache request
                   1470: 
                   1471: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
                   1472: 
                   1473: =item $keylist, array pointer returned from loncoursedata::get_classlist() 
                   1474: which describes the order elements are stored in the %$classlist values.
                   1475: 
                   1476: =item $nosort, if true, sorting links are omitted.
                   1477: 
                   1478: =back
                   1479: 
                   1480: =cut
                   1481: 
                   1482: #################################################
                   1483: #################################################
1.11      www      1484: sub show_drop_list {
1.56      matthew  1485:     my ($r,$classlist,$keylist,$nosort)=@_;
1.11      www      1486:     my $cid=$ENV{'request.course.id'};
1.59      matthew  1487:     if (! exists($ENV{'form.sortby'})) {
                   1488:         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                   1489:                                                 ['sortby']);
                   1490:     }
1.54      matthew  1491:     my $sortby = $ENV{'form.sortby'};
                   1492:     if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
                   1493:         $sortby = 'username';
                   1494:     }
1.56      matthew  1495:     #
1.54      matthew  1496:     my $action = "drop";
                   1497:     $r->print(<<END);
                   1498: <input type="hidden" name="sortby" value="$sortby" />
                   1499: <input type="hidden" name="action" value="$action" />
1.50      matthew  1500: <input type="hidden" name="state"  value="done" />
1.32      matthew  1501: <script>
1.51      matthew  1502: function checkAll(field) {
1.32      matthew  1503:     for (i = 0; i < field.length; i++)
                   1504:         field[i].checked = true ;
                   1505: }
                   1506: 
1.51      matthew  1507: function uncheckAll(field) {
1.32      matthew  1508:     for (i = 0; i < field.length; i++)
                   1509:         field[i].checked = false ;
                   1510: }
                   1511: </script>
                   1512: <p>
1.26      matthew  1513: <input type="hidden" name="phase" value="four">
1.56      matthew  1514: END
                   1515: 
                   1516:     if ($nosort) {
                   1517:         $r->print(<<END);
                   1518: <table border=2>
                   1519: <tr>
                   1520:     <th>&nbsp;</th>
                   1521:     <th>username</th>
                   1522:     <th>domain</th>
                   1523:     <th>ID</th>
                   1524:     <th>student name</th>
                   1525:     <th>section</th>
                   1526: </tr>
                   1527: END
                   1528: 
                   1529:     } else  {
                   1530:         $r->print(<<END);
1.26      matthew  1531: <table border=2>
1.54      matthew  1532: <tr><th>&nbsp;</th>
                   1533:     <th>
                   1534:        <a href="/adm/dropadd?action=$action&sortby=username">username</a>
                   1535:     </th><th>
                   1536:        <a href="/adm/dropadd?action=$action&sortby=domain">domain</a>
                   1537:     </th><th>
                   1538:        <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
                   1539:     </th><th>
                   1540:        <a href="/adm/dropadd?action=$action&sortby=fullname">student name</a>
                   1541:     </th><th>
                   1542:        <a href="/adm/dropadd?action=$action&sortby=section">section</a>
                   1543:     </th>
                   1544: </tr>
1.26      matthew  1545: END
1.56      matthew  1546:     }
                   1547:     #
                   1548:     # Sort the students
                   1549:     my %index;
                   1550:     my $i;
                   1551:     foreach (@$keylist) {
                   1552:         $index{$_} = $i++;
                   1553:     }
                   1554:     my $index  = $index{$sortby};
                   1555:     my $second = $index{'username'};
                   1556:     my $third  = $index{'domain'};
1.54      matthew  1557:     my @Sorted_Students = sort {
1.56      matthew  1558:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
                   1559:             ||
                   1560:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
                   1561:             ||
                   1562:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
                   1563:         } (keys(%$classlist));
1.54      matthew  1564:     foreach my $student (@Sorted_Students) {
1.52      matthew  1565:         my $error;
1.56      matthew  1566:         my $username = $classlist->{$student}->[$index{'username'}];
                   1567:         my $domain   = $classlist->{$student}->[$index{'domain'}];
                   1568:         my $section  = $classlist->{$student}->[$index{'section'}];
                   1569:         my $name     = $classlist->{$student}->[$index{'fullname'}];
                   1570:         my $id       = $classlist->{$student}->[$index{'id'}];
                   1571:         my $status   = $classlist->{$student}->[$index{'status'}];
1.51      matthew  1572:         next if ($status ne 'Active');
                   1573:         #
                   1574:         $r->print(<<"END");
1.26      matthew  1575: <tr>
1.51      matthew  1576:     <td><input type="checkbox" name="droplist" value="$student"></td>
                   1577:     <td>$username</td>
                   1578:     <td>$domain</td>
                   1579:     <td>$id</td>
                   1580:     <td>$name</td>
                   1581:     <td>$section</td>
1.26      matthew  1582: </tr>
                   1583: END
1.25      matthew  1584:     }
                   1585:     $r->print('</table><br>');
1.32      matthew  1586:     $r->print(<<"END");
                   1587: </p><p>
                   1588: <input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)"> &nbsp;
                   1589: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)"> 
                   1590: <p><input type=submit value="Drop Students"></p>
                   1591: END
1.51      matthew  1592:     return;
1.10      www      1593: }
                   1594: 
1.48      matthew  1595: #
                   1596: # Print out the initial form to get the courselist file
                   1597: #
                   1598: sub print_first_courselist_upload_form {
                   1599:     my $r=shift;
1.88      matthew  1600:     my $str;
                   1601:     $str  = '<input type="hidden" name="phase" value="two">';
                   1602:     $str .= '<input type="hidden" name="action" value="upload" />';
                   1603:     $str .= '<input type="hidden"   name="state"  value="got_file" />';
                   1604:     $str .= "<h3>".&mt('Upload a class list')."</h3>\n";
                   1605:     $str .= &Apache::loncommon::upfile_select_html();
                   1606:     $str .= "<p>\n";
                   1607:     $str .= '<input type="submit" name="fileupload" value="'.
                   1608:         &mt('Upload class list').'">'."\n";
                   1609:     $str .= '<input type="checkbox" name="noFirstLine" /> '.
                   1610:         &mt('Ignore First Line')."</p>\n";
                   1611:     $str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
                   1612:                          "How do I create a class list from a spreadsheet").
                   1613:                              "<br />\n";
                   1614:     $str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
                   1615:                            "How do I create a CSV file from a spreadsheet").
                   1616:                                "<br />\n";
                   1617:     $str .= "</body>\n</html>\n";
                   1618:     $r->print($str);
1.48      matthew  1619:     return;
                   1620: }
                   1621: 
1.10      www      1622: # ================================================= Drop/Add from uploaded file
                   1623: sub upfile_drop_add {
                   1624:     my $r=shift;
1.24      albertel 1625:     &Apache::loncommon::load_tmp_file($r);
                   1626:     my @studentdata=&Apache::loncommon::upfile_record_sep();
1.82      www      1627:     if($ENV{'form.noFirstLine'}){shift(@studentdata);}
1.26      matthew  1628:     my @keyfields = split(/\,/,$ENV{'form.keyfields'});
                   1629:     my $cid = $ENV{'request.course.id'};
1.25      matthew  1630:     my %fields=();
1.26      matthew  1631:     for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
1.25      matthew  1632:         if ($ENV{'form.upfile_associate'} eq 'reverse') {
                   1633:             if ($ENV{'form.f'.$i} ne 'none') {
                   1634:                 $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
                   1635:             }
                   1636:         } else {
                   1637:             $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
                   1638:         }
                   1639:     }
1.26      matthew  1640:     #
1.68      matthew  1641:     my ($startdate,$enddate) = &get_dates_from_form();
                   1642:     if ($ENV{'form.makedatesdefault'}) {
                   1643:         $r->print(&make_dates_default($startdate,$enddate));
                   1644:     }
1.31      matthew  1645:     # Determine domain and desired host (home server)
1.25      matthew  1646:     my $domain=$ENV{'form.lcdomain'};
1.31      matthew  1647:     my $desiredhost = $ENV{'form.lcserver'};
                   1648:     if (lc($desiredhost) eq 'default') {
                   1649:         $desiredhost = undef;
                   1650:     } else {
1.45      matthew  1651:         my %home_servers = &Apache::loncommon::get_library_servers($domain);
1.31      matthew  1652:         if (! exists($home_servers{$desiredhost})) {
1.88      matthew  1653:             $r->print('<font color="#ff0000">'.&mt('Error').'</font>'.
                   1654:                       &mt('Invalid home server specified'));
                   1655:             $r->print("</body>\n</html>\n");
1.31      matthew  1656:             return;
                   1657:         }
                   1658:     }
1.26      matthew  1659:     # Determine authentication mechanism
                   1660:     my $amode  = '';
                   1661:     my $genpwd = '';
1.25      matthew  1662:     if ($ENV{'form.login'} eq 'krb') {
1.47      albertel 1663:         $amode='krb';
                   1664: 	$amode.=$ENV{'form.krbver'};
1.28      matthew  1665:         $genpwd=$ENV{'form.krbarg'};
1.25      matthew  1666:     } elsif ($ENV{'form.login'} eq 'int') {
                   1667:         $amode='internal';
1.28      matthew  1668:         if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
                   1669:             $genpwd=$ENV{'form.intarg'};
1.25      matthew  1670:         }
                   1671:     } elsif ($ENV{'form.login'} eq 'loc') {
                   1672:         $amode='localauth';
                   1673:         if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
                   1674:             $genpwd=$ENV{'form.locarg'};
1.79      matthew  1675:         }
                   1676:     }
                   1677:     if ($amode =~ /^krb/) {
                   1678:         if (! defined($genpwd) || $genpwd eq '') {
                   1679:             $r->print('<font color="red" size="+1">'.
1.88      matthew  1680:                       &mt('Unable to enroll students').'</font>  '.
                   1681:                       &mt('No Kerberos domain was specified.').'</p>');
1.79      matthew  1682:             $amode = ''; # This causes the loop below to be skipped
1.25      matthew  1683:         }
                   1684:     }
                   1685:     unless (($domain=~/\W/) || ($amode eq '')) {
1.26      matthew  1686:         #######################################
                   1687:         ##         Enroll Students           ##
                   1688:         #######################################
1.88      matthew  1689:         $r->print('<h3>'.&mt('Enrolling Students')."</h3>\n<p>\n");
1.25      matthew  1690:         my $count=0;
                   1691:         my $flushc=0;
                   1692:         my %student=();
1.26      matthew  1693:         # Get new classlist
1.25      matthew  1694:         foreach (@studentdata) {
                   1695:             my %entries=&Apache::loncommon::record_sep($_);
1.26      matthew  1696:             # Determine student name
1.25      matthew  1697:             unless (($entries{$fields{'username'}} eq '') ||
                   1698:                     (!defined($entries{$fields{'username'}}))) {
1.26      matthew  1699:                 my ($fname, $mname, $lname,$gen) = ('','','','');
1.25      matthew  1700:                 if (defined($fields{'names'})) {
1.26      matthew  1701:                     ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
                   1702:                                             /([^\,]+)\,\s*(\w+)\s*(.*)$/);
1.25      matthew  1703:                 } else {
                   1704:                     if (defined($fields{'fname'})) {
                   1705:                         $fname=$entries{$fields{'fname'}};
                   1706:                     }
                   1707:                     if (defined($fields{'mname'})) {
                   1708:                         $mname=$entries{$fields{'mname'}};
                   1709:                     }
                   1710:                     if (defined($fields{'lname'})) {
                   1711:                         $lname=$entries{$fields{'lname'}};
                   1712:                     }
                   1713:                     if (defined($fields{'gen'})) {
                   1714:                         $gen=$entries{$fields{'gen'}};
                   1715:                     }
                   1716:                 }
                   1717:                 if ($entries{$fields{'username'}}=~/\W/) {
1.88      matthew  1718:                     $r->print('<br />'.
                   1719:       &mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
                   1720:           $entries{$fields{'username'}},$fname,$mname,$lname,$gen).
                   1721:                               '</b>');
1.25      matthew  1722:                 } else {
1.26      matthew  1723:                     # determine section number
1.25      matthew  1724:                     my $sec='';
                   1725:                     my $username=$entries{$fields{'username'}};
                   1726:                     if (defined($fields{'sec'})) {
                   1727:                         if (defined($entries{$fields{'sec'}})) {
                   1728:                             $sec=$entries{$fields{'sec'}};
                   1729:                         }
                   1730:                     }
1.80      matthew  1731:                     # remove non alphanumeric values from section
                   1732:                     $sec =~ s/\W//g;
1.26      matthew  1733:                     # determine student id number
1.25      matthew  1734:                     my $id='';
                   1735:                     if (defined($fields{'id'})) {
                   1736:                         if (defined($entries{$fields{'id'}})) {
                   1737:                             $id=$entries{$fields{'id'}};
                   1738:                         }
                   1739:                         $id=~tr/A-Z/a-z/;
                   1740:                     }
1.73      www      1741:                     # determine email address
                   1742:                     my $email='';
                   1743:                     if (defined($fields{'email'})) {
                   1744:                         if (defined($entries{$fields{'email'}})) {
                   1745:                             $email=$entries{$fields{'email'}};
                   1746:                             unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
                   1747:                         }
                   1748:                     }
1.26      matthew  1749:                     # determine student password
1.25      matthew  1750:                     my $password='';
                   1751:                     if ($genpwd) { 
                   1752:                         $password=$genpwd; 
                   1753:                     } else {
                   1754:                         if (defined($fields{'ipwd'})) {
                   1755:                             if ($entries{$fields{'ipwd'}}) {
                   1756:                                 $password=$entries{$fields{'ipwd'}};
                   1757:                             }
                   1758:                         }
                   1759:                     }
1.56      matthew  1760:                     # Clean up whitespace
                   1761:                     foreach (\$domain,\$username,\$id,\$fname,\$mname,
                   1762:                              \$lname,\$gen,\$sec) {
                   1763:                         $$_ =~ s/(\s+$|^\s+)//g;
                   1764:                     }
1.84      albertel 1765:                     if ($password || $ENV{'form.login'} eq 'loc') {
1.33      matthew  1766:                         &modifystudent($domain,$username,$cid,$sec,
                   1767:                                        $desiredhost);
1.25      matthew  1768:                         my $reply=&Apache::lonnet::modifystudent
                   1769:                             ($domain,$username,$id,$amode,$password,
                   1770:                              $fname,$mname,$lname,$gen,$sec,$enddate,
1.73      www      1771:                              $startdate,$ENV{'form.forceid'},$desiredhost,
                   1772:                              $email);
1.26      matthew  1773:                         if ($reply ne 'ok') {
1.72      matthew  1774:                             $reply =~ s/^error://;
1.88      matthew  1775:                             $r->print('<br />'.
                   1776:                 &mt('<b>[_1]</b>:  Unable to enroll: [_2]',$username,$reply));
1.10      www      1777:          		} else {
1.7       www      1778:                             $count++; $flushc++;
                   1779:                             $student{$username}=1;
1.6       www      1780:                             $r->print('. ');
1.7       www      1781:                             if ($flushc>15) {
                   1782: 				$r->rflush;
                   1783:                                 $flushc=0;
                   1784:                             }
1.6       www      1785:                         }
1.25      matthew  1786:                     } else {
1.88      matthew  1787:                         $r->print('<br />'.
                   1788:       &mt('<b>[_1]</b>: Unable to enroll.  No password specified.',$username)
                   1789:                                   );
1.25      matthew  1790:                     }
                   1791:                 }
1.26      matthew  1792:             }
                   1793:         } # end of foreach (@studentdata)
1.88      matthew  1794:         $r->print("</p>\n<p>\n".&mt('Processed [_1] student(s).',$count).
                   1795:                   "</p>\n");
                   1796:         $r->print("<p>\n".
                   1797:                   &mt('If active, the new role will be available when the '.
                   1798:                   'students next log in to LON-CAPA.')."</p>\n");
1.26      matthew  1799:         #####################################
                   1800:         #           Drop students           #
                   1801:         #####################################
1.25      matthew  1802:         if ($ENV{'form.fullup'} eq 'yes') {
1.88      matthew  1803:             $r->print('<h3>'.&mt('Dropping Students')."</h3>\n");
1.26      matthew  1804:             #  Get current classlist
1.56      matthew  1805:             my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
                   1806:             if (! defined($classlist)) {
1.88      matthew  1807:                 $r->print(&mt('There are no students currently enrolled.').
                   1808:                           "\n");
1.56      matthew  1809:             } else {
                   1810:                 # Remove the students we just added from the list of students.
1.25      matthew  1811:                 foreach (@studentdata) {
                   1812:                     my %entries=&Apache::loncommon::record_sep($_);
                   1813:                     unless (($entries{$fields{'username'}} eq '') ||
                   1814:                             (!defined($entries{$fields{'username'}}))) {
1.56      matthew  1815:                         delete($classlist->{$entries{$fields{'username'}}.
1.26      matthew  1816:                                                 ':'.$domain});
1.25      matthew  1817:                     }
                   1818:                 }
1.56      matthew  1819:                 # Print out list of dropped students.
                   1820:                 &show_drop_list($r,$classlist,$keylist,'nosort');
1.25      matthew  1821:             }
                   1822:         }
1.26      matthew  1823:     } # end of unless
1.10      www      1824: }
                   1825: 
1.11      www      1826: # ================================================================== Phase four
                   1827: sub drop_student_list {
                   1828:     my $r=shift;
                   1829:     my $count=0;
1.35      matthew  1830:     my @droplist;
                   1831:     if (ref($ENV{'form.droplist'})) {
                   1832:         @droplist = @{$ENV{'form.droplist'}};
                   1833:     } else {
                   1834:         @droplist = ($ENV{'form.droplist'});
                   1835:     }
                   1836:     foreach (@droplist) {
1.26      matthew  1837:         my ($uname,$udom)=split(/\:/,$_);
1.56      matthew  1838:         # drop student
1.35      matthew  1839:         my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
1.37      matthew  1840:         if ($result eq 'ok' || $result eq 'ok:') {
1.88      matthew  1841:             $r->print(&mt('Dropped [_1]',$uname.'@'.$udom).'<br>');
1.59      matthew  1842:             $count++;
1.35      matthew  1843:         } else {
1.88      matthew  1844:             $r->print(
                   1845:           &mt('Error dropping [_1]:[_2]',$uname.'@'.$udom,$result).
1.35      matthew  1846:                       '<br />');
                   1847:         }
1.20      harris41 1848:     }
1.88      matthew  1849:     $r->print('<p><b>'.&mt('Dropped [_1] student(s).',$count).'</b></p>');
                   1850:     $r->print('<p>'.&mt('Re-enrollment will re-activate data.')) if ($count);
1.11      www      1851: }
                   1852: 
1.50      matthew  1853: ###################################################################
                   1854: ###################################################################
                   1855: 
                   1856: =pod
                   1857: 
                   1858: =item &handler
                   1859: 
                   1860: The typical handler you see in all these modules.  Takes $r, the
                   1861: http request, as an argument.  
                   1862: 
                   1863: The response to the request is governed by two form variables
                   1864: 
                   1865:  form.action      form.state     response
                   1866:  ---------------------------------------------------
                   1867:  undefined        undefined      print main menu
                   1868:  upload           undefined      print courselist upload menu
                   1869:  upload           got_file       deal with uploaded file,
                   1870:                                  print the upload managing menu
                   1871:  upload           enrolling      enroll students based on upload
                   1872:  drop             undefined      print the classlist ready to drop
                   1873:  drop             done           drop the selected students
1.74      matthew  1874:  enrollstudent    undefined      print student username domain form
                   1875:  enrollstudent    gotusername    print single student enroll menu
1.50      matthew  1876:  enrollstudent    enrolling      enroll student
                   1877:  classlist        undefined      print html classlist
                   1878:  classlist        csv            print csv classlist
                   1879:  modifystudent    undefined      print classlist to select student to modify
                   1880:  modifystudent    selected       print modify student menu
                   1881:  modifystudent    done           make modifications to student record
                   1882: 
                   1883: =cut
                   1884: 
                   1885: ###################################################################
                   1886: ###################################################################
1.10      www      1887: sub handler {
1.26      matthew  1888:     my $r=shift;
                   1889:     if ($r->header_only) {
1.86      www      1890:         &Apache::loncommon::content_type($r,'text/html');
1.26      matthew  1891:         $r->send_http_header;
                   1892:         return OK;
                   1893:     }
1.48      matthew  1894:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.50      matthew  1895:                                             ['action','state']);
1.26      matthew  1896:     #  Needs to be in a course
1.50      matthew  1897:     if (! (($ENV{'request.course.fn'}) &&
                   1898:           (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'})))) {
                   1899:         # Not in a course, or not allowed to modify parms
                   1900:         $ENV{'user.error.msg'}=
                   1901:             "/adm/dropadd:cst:0:0:Cannot drop or add students";
                   1902:         return HTTP_NOT_ACCEPTABLE; 
                   1903:     }
                   1904:     #
                   1905:     # Only output the header information if they did not request csv format
                   1906:     #
                   1907:     if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
                   1908:         $r->content_type('text/csv');
                   1909:     } else {
1.26      matthew  1910:         # Start page
1.86      www      1911:         &Apache::loncommon::content_type($r,'text/html');
1.26      matthew  1912:         $r->send_http_header;
1.50      matthew  1913:         $r->print(&header());
                   1914:     }
                   1915:     #
                   1916:     # Main switch on form.action and form.state, as appropriate
                   1917:     if (! exists($ENV{'form.action'})) {
                   1918:         &print_main_menu($r);
                   1919:     } elsif ($ENV{'form.action'} eq 'upload') {
                   1920:         if (! exists($ENV{'form.state'})) {
                   1921:             &print_first_courselist_upload_form($r);            
                   1922:         } elsif ($ENV{'form.state'} eq 'got_file') {
                   1923:             &print_upload_manager_form($r);
                   1924:         } elsif ($ENV{'form.state'} eq 'enrolling') {
1.26      matthew  1925:             if ($ENV{'form.datatoken'}) {
                   1926:                 &upfile_drop_add($r);
1.50      matthew  1927:             } else {
                   1928:                 # Hmmm, this is an error
1.26      matthew  1929:             }
1.50      matthew  1930:         } else {
                   1931:             &print_first_courselist_upload_form($r);            
1.26      matthew  1932:         }
1.50      matthew  1933:     } elsif ($ENV{'form.action'} eq 'drop') {
                   1934:         if (! exists($ENV{'form.state'})) {
1.51      matthew  1935:             &print_drop_menu($r);
1.50      matthew  1936:         } elsif ($ENV{'form.state'} eq 'done') {
1.26      matthew  1937:             &drop_student_list($r);
1.50      matthew  1938:         } else {
1.55      matthew  1939:             &print_drop_menu($r);
1.26      matthew  1940:         }
1.50      matthew  1941:     } elsif ($ENV{'form.action'} eq 'enrollstudent') {
                   1942:         if (! exists($ENV{'form.state'})) {
1.74      matthew  1943:             &get_student_username_domain_form($r);
                   1944:         } elsif ($ENV{'form.state'} eq 'gotusername') {
1.50      matthew  1945:             &print_enroll_single_student_form($r);
                   1946:         } elsif ($ENV{'form.state'} eq 'enrolling') {
1.26      matthew  1947:             &enroll_single_student($r);
1.50      matthew  1948:         } else {
1.74      matthew  1949:             &get_student_username_domain_form($r);
1.26      matthew  1950:         }
1.50      matthew  1951:     } elsif ($ENV{'form.action'} eq 'classlist') {
                   1952:         if (! exists($ENV{'form.state'})) {
                   1953:             &print_html_classlist($r);
                   1954:         } elsif ($ENV{'form.state'} eq 'csv') {
1.60      matthew  1955:             &print_formatted_classlist($r,'csv');
                   1956:         } elsif ($ENV{'form.state'} eq 'excel') {
                   1957:             &print_formatted_classlist($r,'excel');
1.50      matthew  1958:         } else {
                   1959:             &print_html_classlist($r);
                   1960:         }
                   1961:     } elsif ($ENV{'form.action'} eq 'modifystudent') {
                   1962:         if (! exists($ENV{'form.state'})) {
                   1963:             &print_html_classlist($r);
                   1964:         } elsif ($ENV{'form.state'} eq 'selected') {
                   1965:             &print_modify_student_form($r);
                   1966:         } elsif ($ENV{'form.state'} eq 'done') {
                   1967:             &modify_single_student($r);
                   1968:         } else {
                   1969:             &print_html_classlist($r);
                   1970:         }        
                   1971:     } else {
                   1972:         # We should not end up here, but I guess it is possible
                   1973:         &Apache::lonnet::logthis("Undetermined state in londropadd.pm.  ".
                   1974:                                  "form.action = ".$ENV{'form.action'}.
                   1975:                                  "Someone should fix this.");
                   1976:         &print_main_menu($r);
                   1977:     }
                   1978:     #
                   1979:     # Finish up
                   1980:     if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
                   1981:         $r->print("\n");
1.26      matthew  1982:     } else {
1.50      matthew  1983:         $r->print('</form></body></html>');
1.26      matthew  1984:     }
                   1985:     return OK;
1.1       www      1986: }
                   1987: 
1.50      matthew  1988: ###################################################################
                   1989: ###################################################################
                   1990: 
1.1       www      1991: 1;
                   1992: __END__
1.50      matthew  1993: 
1.1       www      1994: 

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