File:  [LON-CAPA] / loncom / interface / Attic / londropadd.pm
Revision 1.151: download - view: text, annotated - select for diffs
Sun Dec 10 23:48:44 2006 UTC (17 years, 6 months ago) by albertel
Branches: MAIN
CVS tags: version_2_2_99_0, HEAD
- correcting env lookups

    1: # The LearningOnline Network with CAPA
    2: # Handler to drop and add students in courses 
    3: #
    4: # $Id: londropadd.pm,v 1.151 2006/12/10 23:48:44 albertel Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: #
   29: ###############################################################
   30: ##############################################################
   31: 
   32: package Apache::londropadd;
   33: 
   34: use strict;
   35: use Apache::lonnet;
   36: use Apache::loncommon();
   37: use Apache::lonhtmlcommon();
   38: use Apache::Constants qw(:common :http REDIRECT);
   39: use Spreadsheet::WriteExcel;
   40: use Apache::lonstathelpers();
   41: use Apache::lonlocal;
   42: use Apache::longroup;
   43: 
   44: ###############################################################
   45: ###############################################################
   46: sub header {
   47:     my $start_page=&Apache::loncommon::start_page('Enrollment Manager');
   48:     return(<<ENDHEAD);
   49: $start_page
   50: <form method="post" enctype="multipart/form-data"  
   51:       action="/adm/dropadd" name="studentform">
   52: ENDHEAD
   53: }
   54: 
   55: ###############################################################
   56: ###############################################################
   57: # Drop student from all sections of a course, except optional $csec
   58: sub modifystudent {
   59:     my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
   60:     # if $csec is undefined, drop the student from all the courses matching
   61:     # this one.  If $csec is defined, drop them from all other sections of 
   62:     # this course and add them to section $csec
   63:     my $cdom = $env{'course.'.$courseid.'.domain'};
   64:     my $cnum = $env{'course.'.$courseid.'.num'};
   65:     my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
   66:     my ($tmp) = keys(%roles);
   67:     # Bail out if we were unable to get the students roles
   68:     return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
   69:     # Go through the roles looking for enrollment in this course
   70:     my $result = '';
   71:     foreach my $course (keys(%roles)) {
   72:         if ($course=~m{^/\Q$cdom\E/\Q$cnum\E(?:\/)*(?:\s+)*(\w+)*\_st$}) {
   73:             # We are in this course
   74:             my $section=$1;
   75:             $section='' if ($course eq "/$cdom/$cnum".'_st');
   76:             if (defined($csec) && $section eq $csec) {
   77:                 $result .= 'ok:';
   78:             } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
   79:                 my (undef,$end,$start)=split(/\_/,$roles{$course});
   80:                 my $now=time;
   81:                 # if this is an active role
   82:                 if (!($start && ($now<$start)) || !($end && ($now>$end))) {
   83:                     my $reply=&Apache::lonnet::modifystudent
   84:                         # dom  name  id mode pass     f     m     l     g
   85:                         ($udom,$unam,'',  '',  '',undef,undef,undef,undef,
   86:                          $section,time,undef,undef,$desiredhost);
   87:                     $result .= $reply.':';
   88:                 }
   89:             }
   90:         }
   91:     }
   92:     if ($result eq '') {
   93:         $result = 'Unable to find section for this student';
   94:     } else {
   95:         $result =~ s/(ok:)+/ok/g;
   96:     }
   97:     return $result;
   98: }
   99: 
  100: ###############################################################
  101: ###############################################################
  102: # build a domain and server selection form
  103: sub domain_form {
  104:     my ($defdom) = @_;
  105:     # Set up domain and server selection forms
  106:     #
  107:     # Get the domains
  108:     my @domains = &Apache::loncommon::get_domains();
  109:     # build up the menu information to be passed to 
  110:     # &Apache::loncommon::linked_select_forms
  111:     my %select_menus;
  112:     foreach my $dom (@domains) {
  113:         # set up the text for this domain
  114:         $select_menus{$dom}->{'text'}= $dom;
  115:         # we want a choice of 'default' as the default in the second menu
  116:         $select_menus{$dom}->{'default'}= 'default';
  117:         $select_menus{$dom}->{'select2'}->{'default'} = 'default';
  118:         # Now build up the other items in the second menu
  119:         my %servers = &Apache::loncommon::get_library_servers($dom);
  120:         foreach my $server (keys(%servers)) {
  121:             $select_menus{$dom}->{'select2'}->{$server} 
  122:                                             = "$server $servers{$server}";
  123:         }
  124:     }
  125:     my $result  = &Apache::loncommon::linked_select_forms
  126:         ('studentform',' with home server ',$defdom,
  127:          'lcdomain','lcserver',\%select_menus);
  128:     return $result;
  129: }
  130: 
  131: ###############################################################
  132: ###############################################################
  133: #  Menu Phase One
  134: sub print_main_menu {
  135:     my ($r,$enrl_permission,$view_permission,$grp_manage_permission,
  136:         $grp_view_permission)=@_;
  137:     #
  138:     my $cid =$env{'request.course.id'};
  139:     my $cdom=$env{'course.'.$cid.'.domain'};
  140:     my $cnum=$env{'course.'.$cid.'.num'};
  141:     my @menu = 
  142:         ( 
  143:           { text => 'Upload a class list', 
  144:             help => 'Course_Create_Class_List',
  145:             action => 'upload',
  146:             permission => $enrl_permission,
  147:             },
  148:           { text => 'Enroll a single student', 
  149:             help => 'Course_Add_Student',
  150:             action => 'enrollstudent',
  151:             permission => $enrl_permission,
  152:             },
  153:           { text => 'Modify student data', 
  154:             help => 'Course_Modify_Student_Data',
  155:             action => 'modifystudent',
  156:             permission => $enrl_permission,
  157:             },
  158:           { text => 'View Class List', 
  159:             help => 'Course_View_Class_List',
  160:             action => 'classlist',
  161:             permission => $view_permission,
  162:             },
  163:           { text => 'Drop Students', 
  164:             help => 'Course_Drop_Student',
  165:             action => 'drop',
  166:             permission => $enrl_permission,
  167:             },
  168:           { text => 'Automated Enrollment Manager', 
  169:             permission => &Apache::lonnet::auto_run($cnum,$cdom),
  170:             url  => '/adm/populate',
  171:             },
  172:           { text => 'Create a new group',
  173:             help => 'Course_Create_Group',
  174:             permission => $grp_manage_permission,
  175:             url => '/adm/coursegroups?refpage=enrl&action=create',
  176:             },
  177:           { text => 'Modify an existing group',
  178:             help => 'Course_Modify_Group',
  179:             permission => $grp_manage_permission,
  180:             url => '/adm/coursegroups?refpage=enrl&action=modify',
  181:             },
  182: #          { text => 'Delete an existing group',
  183: #            help => 'Course_Delete_Group',
  184: #            permission => $grp_manage_permission,
  185: #            url => '/adm/coursegroups?refpage=enrl&action=delete',
  186: #            },
  187:           { text => 'Enter an existing group',
  188:             help => 'Course_Display_Group',
  189:             permission => $grp_view_permission,
  190:             url => '/adm/coursegroups?refpage=enrl&action=view',
  191:             },
  192:           );
  193:     my $menu_html = '';
  194:     foreach my $menu_item (@menu) {
  195:         next if (! $menu_item->{'permission'});
  196:         $menu_html.='<p>';
  197:         $menu_html.='<font size="+1">';
  198:         if (exists($menu_item->{'url'})) {
  199:             $menu_html.=qq{<a href="$menu_item->{'url'}">};
  200:         } else {
  201:             $menu_html.=
  202:                 qq{<a href="/adm/dropadd?action=$menu_item->{'action'}">};
  203:         }
  204:         $menu_html.= &mt($menu_item->{'text'}).'</a></font>';
  205:         if (exists($menu_item->{'help'})) {
  206:             $menu_html.=
  207:                 &Apache::loncommon::help_open_topic($menu_item->{'help'});
  208:         }
  209:         $menu_html.='</p>'.$/;
  210:     }
  211:     $r->print($menu_html);
  212:     return;
  213: }
  214: 
  215: ###############################################################
  216: ###############################################################
  217: sub hidden_input {
  218:     my ($name,$value) = @_;
  219:     return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'."\n";
  220: }
  221: 
  222: sub print_upload_manager_header {
  223:     my ($r,$datatoken,$distotal,$krbdefdom)=@_;
  224:     my $javascript;
  225:     #
  226:     if (! exists($env{'form.upfile_associate'})) {
  227:         $env{'form.upfile_associate'} = 'forward';
  228:     }
  229:     if ($env{'form.associate'} eq 'Reverse Association') {
  230:         if ( $env{'form.upfile_associate'} ne 'reverse' ) {
  231:             $env{'form.upfile_associate'} = 'reverse';
  232:         } else {
  233:             $env{'form.upfile_associate'} = 'forward';
  234:         }
  235:     }
  236:     if ($env{'form.upfile_associate'} eq 'reverse') {
  237: 	$javascript=&upload_manager_javascript_reverse_associate();
  238:     } else {
  239: 	$javascript=&upload_manager_javascript_forward_associate();
  240:     }
  241:     #
  242:     # Deal with restored settings
  243:     my $password_choice = '';
  244:     if (exists($env{'form.ipwd_choice'}) &&
  245:         $env{'form.ipwd_choice'} ne '') {
  246:         # If a column was specified for password, assume it is for an
  247:         # internal password.  This is a bug waiting to be filed (could be
  248:         # local or krb auth instead of internal) but I do not have the 
  249:         # time to mess around with this now.
  250:         $password_choice = 'int';        
  251:     }
  252:     #
  253:     my $javascript_validations=&javascript_validations('auth',$krbdefdom,
  254:                                     $password_choice);
  255:     my $checked=(($env{'form.noFirstLine'})?' checked="checked" ':'');
  256:     $r->print('<h3>'.&mt('Uploading Class List')."</h3>\n".
  257:               "<hr>\n".
  258:               '<h3>'.&mt('Identify fields')."</h3>\n");
  259:     $r->print("<p>\n".
  260:               &mt('Total number of records found in file: [_1].',$distotal).
  261:               "\n".
  262:               "</p><hr>\n");
  263:     $r->print(&mt('Enter as many fields as you can. The system will inform you and bring you back to this page if the data selected is insufficient to enroll students in your class.')."<hr>\n");
  264:     $r->print(&hidden_input('action','upload').
  265:               &hidden_input('state','got_file').
  266:               &hidden_input('associate','').
  267:               &hidden_input('datatoken',$datatoken).
  268:               &hidden_input('fileupload',$env{'form.fileupload'}).
  269:               &hidden_input('upfiletype',$env{'form.upfiletype'}).
  270:               &hidden_input('upfile_associate',$env{'form.upfile_associate'}));
  271:     $r->print('<input type="button" value="Reverse Association" '.
  272:               'name="'.&mt('Reverse Association').'" '.
  273:               'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
  274:     $r->print('<label><input type="checkbox" name="noFirstLine"'.$checked.'/>'.
  275:               &mt('Ignore First Line').'</label>');
  276:     $r->print("<hr />\n".
  277:               '<script type="text/javascript" language="Javascript">'."\n".
  278:               $javascript."\n".$javascript_validations.'</script>');
  279: }
  280: 
  281: ###############################################################
  282: ###############################################################
  283: sub javascript_validations {
  284:     my ($mode,$krbdefdom,$curr_authtype,$curr_authfield)=@_;
  285:     my $authheader;
  286:     if ($mode eq 'auth') {
  287:         my %param = ( formname => 'studentform',
  288:                       kerb_def_dom => $krbdefdom,
  289:                       curr_authtype => $curr_authtype);
  290:         $authheader = &Apache::loncommon::authform_header(%param);
  291:     } elsif ($mode eq 'createcourse') {
  292:         my %param = ( formname => 'ccrs',
  293:                   kerb_def_dom => $krbdefdom,
  294:                       curr_authtype => $curr_authtype );
  295:         $authheader = &Apache::loncommon::authform_header(%param);
  296:     } elsif ($mode eq 'modifycourse') {
  297:         my %param = ( formname => 'cmod',
  298:                   kerb_def_dom => $krbdefdom,
  299:                   mode => 'modifycourse',
  300:                   curr_authtype => $curr_authtype,
  301:                   curr_autharg => $curr_authfield );
  302:         $authheader = &Apache::loncommon::authform_header(%param);
  303:     }
  304: 
  305:     
  306:     my %alert = &Apache::lonlocal::texthash
  307:         (username => 'You need to specify the username field.',
  308:          authen   => 'You must choose an authentication type.',
  309:          krb      => 'You need to specify the Kerberos domain.',
  310:          ipass    => 'You need to specify the initial password.',
  311:          name     => 'The optional name field was not specified.',
  312:          snum     => 'The optional student number field was not specified.',
  313:          section  => 'The optional section field was not specified.', 
  314:          email    => 'The optional email address field was not specified.',
  315:          continue => 'Continue enrollment?',
  316:          );
  317:     
  318: #    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
  319:     my $function_name =(<<END);
  320: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
  321: END
  322:     my $auth_checks;
  323:     if ($mode eq 'createcourse') {
  324:         $auth_checks .= (<<END);
  325:     if (vf.autoadds[0].checked == true) {
  326:         if (current.radiovalue == null || current.radiovalue == 'nochange') {
  327:             alert('$alert{'authen'}');
  328:             return;
  329:         }
  330:     }
  331: END
  332:     } else {
  333:         $auth_checks .= (<<END);
  334:     var foundatype=0;
  335:     if (founduname==0) {
  336: 	alert('$alert{'username'}');
  337:         return;
  338:     }
  339:     // alert('current.radiovalue = '+current.radiovalue);
  340:     if (current.radiovalue == null || current.radiovalue == '' || current.radiovalue == 'nochange') {
  341:         // They did not check any of the login radiobuttons.
  342:         alert('$alert{'authen'}');
  343:         return;
  344:     }
  345: END
  346:     }
  347:     if ($mode eq 'createcourse') {
  348:         $auth_checks .= "
  349:     if ( (vf.autoadds[0].checked == true) &&
  350:          (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') ) {
  351: ";
  352:     } elsif ($mode eq 'modifycourse') {
  353:         $auth_checks .= " 
  354:     if (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') {
  355: ";
  356:     }
  357:     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
  358:         $auth_checks .= (<<END);
  359:         var alertmsg = '';
  360:         switch (current.radiovalue) {
  361:             case 'krb':
  362:                 alertmsg = '$alert{'krb'}';
  363:                 break;
  364:             default:
  365:                 alertmsg = '';
  366:         }
  367:         if (alertmsg != '') {
  368:             alert(alertmsg);
  369:             return;
  370:         }
  371:     }
  372: END
  373:     } else {
  374:         $auth_checks .= (<<END);
  375:     foundatype=1;
  376:     if (current.argfield == null || current.argfield == '') {
  377:         var alertmsg = '';
  378:         switch (current.value) {
  379:             case 'krb': 
  380:                 alertmsg = '$alert{'krb'}';
  381:                 break;
  382:             case 'loc':
  383:             case 'fsys':
  384:                 alertmsg = '$alert{'ipass'}';
  385:                 break;
  386:             case 'fsys':
  387:                 alertmsg = '';
  388:                 break;
  389:             default: 
  390:                 alertmsg = '';
  391:         }
  392:         if (alertmsg != '') {
  393:             alert(alertmsg);
  394:             return;
  395:         }
  396:     }
  397: END
  398:     }
  399:     my $section_checks;
  400:     my $optional_checks = '';
  401:     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
  402:         $optional_checks = (<<END);
  403:     vf.submit();
  404: }
  405: END
  406:     } else {
  407:         $section_checks = &section_check_js();
  408:         $optional_checks = (<<END);
  409:     var message='';
  410:     if (foundname==0) { 
  411:         message='$alert{'name'}';
  412:     }
  413:     if (foundid==0) { 
  414:         if (message!='') { 
  415:             message+='\\n'; 
  416:         }
  417:         message+='$alert{'snum'}';
  418:     }
  419:     if (foundsec==0) {
  420:         if (message!='') {
  421:             message+='\\n';
  422:         } 
  423:         message+='$alert{'section'}';
  424:     }
  425:     if (foundemail==0) {
  426:         if (message!='') {
  427:             message+='\\n';
  428:         }
  429:         message+='$alert{'email'}';
  430:     }
  431:     if (message!='') {
  432:         message+= '\\n$alert{'continue'}';
  433:         if (confirm(message)) {
  434:             vf.state.value='enrolling';
  435:             vf.submit();
  436:         }
  437:     } else {
  438:         vf.state.value='enrolling';
  439:         vf.submit();
  440:     }
  441: }
  442: END
  443:     }
  444:     my $result = $function_name;
  445:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
  446:         $result .= $auth_checks;
  447:     }
  448:     $result .= $optional_checks."\n".$section_checks;
  449:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
  450:         $result .= $authheader;
  451:     }
  452:     return $result;
  453: }
  454: 
  455: ###############################################################
  456: ###############################################################
  457: sub upload_manager_javascript_forward_associate {
  458:     return(<<ENDPICK);
  459: function verify(vf,sec_caller) {
  460:     var founduname=0;
  461:     var foundpwd=0;
  462:     var foundname=0;
  463:     var foundid=0;
  464:     var foundsec=0;
  465:     var foundemail=0;
  466:     var tw;
  467:     for (i=0;i<=vf.nfields.value;i++) {
  468:         tw=eval('vf.f'+i+'.selectedIndex');
  469:         if (tw==1) { founduname=1; }
  470:         if ((tw>=2) && (tw<=6)) { foundname=1; }
  471:         if (tw==7) { foundid=1; }
  472:         if (tw==8) { foundsec=1; }
  473:         if (tw==9) { foundpwd=1; }
  474:         if (tw==10) { foundemail=1; }
  475:     }
  476:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
  477: }
  478: 
  479: //
  480: // vf = this.form
  481: // tf = column number
  482: //
  483: // values of nw
  484: //
  485: // 0 = none
  486: // 1 = username
  487: // 2 = names (lastname, firstnames)
  488: // 3 = fname (firstname)
  489: // 4 = mname (middlename)
  490: // 5 = lname (lastname)
  491: // 6 = gen   (generation)
  492: // 7 = id
  493: // 8 = section
  494: // 9 = ipwd  (password)
  495: // 10 = email address
  496: 
  497: function flip(vf,tf) {
  498:    var nw=eval('vf.f'+tf+'.selectedIndex');
  499:    var i;
  500:    // make sure no other columns are labeled the same as this one
  501:    for (i=0;i<=vf.nfields.value;i++) {
  502:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
  503:           eval('vf.f'+i+'.selectedIndex=0;')
  504:       }
  505:    }
  506:    // If we set this to 'lastname, firstnames', clear out all the ones
  507:    // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
  508:    if (nw==2) {
  509:       for (i=0;i<=vf.nfields.value;i++) {
  510:          if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
  511:              (eval('vf.f'+i+'.selectedIndex')<=6)) {
  512:              eval('vf.f'+i+'.selectedIndex=0;')
  513:          }
  514:       }
  515:    }
  516:    // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
  517:    // clear out any that are set to 'lastname, firstnames' (2)
  518:    if ((nw>=3) && (nw<=6)) {
  519:       for (i=0;i<=vf.nfields.value;i++) {
  520:          if (eval('vf.f'+i+'.selectedIndex')==2) {
  521:              eval('vf.f'+i+'.selectedIndex=0;')
  522:          }
  523:       }
  524:    }
  525:    // If we set the password, make the password form below correspond to 
  526:    // the new value.
  527:    if (nw==9) {
  528:        changed_radio('int',document.studentform);
  529:        set_auth_radio_buttons('int',document.studentform);
  530:        vf.intarg.value='';
  531:        vf.krbarg.value='';
  532:        vf.locarg.value='';
  533:    }
  534: }
  535: 
  536: function clearpwd(vf) {
  537:     var i;
  538:     for (i=0;i<=vf.nfields.value;i++) {
  539:         if (eval('vf.f'+i+'.selectedIndex')==9) {
  540:             eval('vf.f'+i+'.selectedIndex=0;')
  541:         }
  542:     }
  543: }
  544: 
  545: ENDPICK
  546: }
  547: 
  548: ###############################################################
  549: ###############################################################
  550: sub upload_manager_javascript_reverse_associate {
  551:     return(<<ENDPICK);
  552: function verify(vf,sec_caller) {
  553:     var founduname=0;
  554:     var foundpwd=0;
  555:     var foundname=0;
  556:     var foundid=0;
  557:     var foundsec=0;
  558:     var tw;
  559:     for (i=0;i<=vf.nfields.value;i++) {
  560:         tw=eval('vf.f'+i+'.selectedIndex');
  561:         if (i==0 && tw!=0) { founduname=1; }
  562:         if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
  563:         if (i==6 && tw!=0) { foundid=1; }
  564:         if (i==7 && tw!=0) { foundsec=1; }
  565:         if (i==8 && tw!=0) { foundpwd=1; }
  566:     }
  567:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
  568: }
  569: 
  570: function flip(vf,tf) {
  571:    var nw=eval('vf.f'+tf+'.selectedIndex');
  572:    var i;
  573:    // picked the all one one name field, reset the other name ones to blank
  574:    if (tf==1 && nw!=0) {
  575:       for (i=2;i<=5;i++) {
  576:          eval('vf.f'+i+'.selectedIndex=0;')
  577:       }
  578:    }
  579:    //picked one of the piecewise name fields, reset the all in
  580:    //one field to blank
  581:    if ((tf>=2) && (tf<=5) && (nw!=0)) {
  582:       eval('vf.f1.selectedIndex=0;')
  583:    }
  584:    // intial password specified, pick internal authentication
  585:    if (tf==8 && nw!=0) {
  586:        changed_radio('int',document.studentform);
  587:        set_auth_radio_buttons('int',document.studentform);
  588:        vf.krbarg.value='';
  589:        vf.intarg.value='';
  590:        vf.locarg.value='';
  591:    }
  592: }
  593: 
  594: function clearpwd(vf) {
  595:     var i;
  596:     if (eval('vf.f8.selectedIndex')!=0) {
  597:         eval('vf.f8.selectedIndex=0;')
  598:     }
  599: }
  600: ENDPICK
  601: }
  602: 
  603: ###############################################################
  604: ###############################################################
  605: sub print_upload_manager_footer {
  606:     my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
  607: 
  608:     my ($krbdef,$krbdefdom) =
  609:         &Apache::loncommon::get_kerberos_defaults($defdom);
  610:     my %param = ( formname => 'document.studentform',
  611:                   kerb_def_dom => $krbdefdom,
  612:                   kerb_def_auth => $krbdef
  613:                   );
  614:     if (exists($env{'form.ipwd_choice'}) &&
  615:         defined($env{'form.ipwd_choice'}) &&
  616:         $env{'form.ipwd_choice'} ne '') {
  617:         $param{'curr_authtype'} = 'int';
  618:     }
  619:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
  620:     my $intform = &Apache::loncommon::authform_internal(%param);
  621:     my $locform = &Apache::loncommon::authform_local(%param);
  622:     my $domform = &domain_form($defdom);
  623:     my $date_table = &date_setting_table();
  624:     my $Str = "</table>\n";
  625:     $Str .= &hidden_input('nfields',$i);
  626:     $Str .= &hidden_input('keyfields',$keyfields);
  627:     $Str .= '<h3>'.&mt('Login Type')."</h3>\n";
  628:     $Str .= "<p>\n".
  629:         &mt('Note: this will not take effect if the user already exists').
  630: 	&Apache::loncommon::help_open_topic('Auth_Options').
  631:         "</p><p>\n";
  632:     $Str .= $krbform."\n</p><p>\n".
  633:         $intform."\n</p><p>\n".
  634:         $locform."\n</p>\n";
  635:     $Str .= '<h3>'.&mt('LON-CAPA Domain for Students')."</h3>\n";
  636:     $Str .= "<p>\n".&mt('LON-CAPA domain: [_1]',$domform)."\n</p>\n";
  637:     $Str .= "<h3>".&mt('Starting and Ending Dates')."</h3>\n";
  638:     $Str .= "<p>\n".$date_table."</p>\n";
  639:     $Str .= "<h3>".&mt('Full Update')."</h3>\n";
  640:     $Str .= '<label><input type="checkbox" name="fullup" value="yes">'.
  641:         ' '.&mt('Full update (also print list of users not enrolled anymore)').
  642:         "</label></p>\n";
  643:     $Str .= "<h3>".&mt('Student Number')."</h3>\n";
  644:     $Str .= "<p>\n".'<label><input type="checkbox" name="forceid" value="yes">';
  645:     $Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
  646:                 'of Conflicting IDs (only do if you know what you are doing)').
  647:                 "</label>\n</p><p>\n";
  648:     $Str .= '<input type="button"'. 
  649:               'onClick="javascript:verify(this.form,this.form.csec)" '.
  650:         'value="Update Class List" />'."<br />\n";
  651:     $Str .= &mt('Note: for large courses, this operation may be time '.
  652:                 'consuming');
  653:     $r->print($Str);
  654:     return;
  655: }
  656: 
  657: ###############################################################
  658: ###############################################################
  659: sub print_upload_manager_form {
  660:     my $r=shift;
  661: 
  662:     my $firstLine;
  663:     my $datatoken;
  664:     if (!$env{'form.datatoken'}) {
  665:         $datatoken=&Apache::loncommon::upfile_store($r);
  666:     } else {
  667:         $datatoken=$env{'form.datatoken'};
  668:         &Apache::loncommon::load_tmp_file($r);
  669:     }
  670:     my @records=&Apache::loncommon::upfile_record_sep();
  671:     if($env{'form.noFirstLine'}){
  672:         $firstLine=shift(@records);
  673:     }
  674:     my $total=$#records;
  675:     my $distotal=$total+1;
  676:     my $today=time;
  677:     my $halfyear=$today+15552000;
  678:     #
  679:     # Restore memorized settings
  680:     &Apache::loncommon::restore_course_settings
  681:         ('enrollment_upload',{ 'username_choice' => 'scalar', # column settings
  682:                                'names_choice' => 'scalar',
  683:                                'fname_choice' => 'scalar',
  684:                                'mname_choice' => 'scalar',
  685:                                'lname_choice' => 'scalar',
  686:                                'gen_choice' => 'scalar',
  687:                                'id_choice' => 'scalar',
  688:                                'sec_choice' => 'scalar',
  689:                                'ipwd_choice' => 'scalar',
  690:                                'email_choice' => 'scalar',
  691:                            });
  692:     #
  693:     # Determine kerberos parameters as appropriate
  694:     my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
  695:     my ($krbdef,$krbdefdom) =
  696:         &Apache::loncommon::get_kerberos_defaults($defdom);
  697:     #
  698:     &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
  699:     my $i;
  700:     my $keyfields;
  701:     if ($total>=0) {
  702:         my @field=
  703:             (['username',&mt('Username'),     $env{'form.username_choice'}],
  704:              ['names',&mt('Last Name, First Names'),$env{'form.names_choice'}],
  705:              ['fname',&mt('First Name'),      $env{'form.fname_choice'}],
  706:              ['mname',&mt('Middle Names/Initials'),$env{'form.mname_choice'}],
  707:              ['lname',&mt('Last Name'),       $env{'form.lname_choice'}],
  708:              ['gen',  &mt('Generation'),      $env{'form.gen_choice'}],
  709:              ['id',   &mt('ID/Student Number'),$env{'form.id_choice'}],
  710:              ['sec',  &mt('Section'),          $env{'form.sec_choice'}],
  711:              ['ipwd', &mt('Initial Password'),$env{'form.ipwd_choice'}],
  712:              ['email',&mt('EMail Address'),   $env{'form.email_choice'}]);
  713: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
  714: 	    &Apache::loncommon::csv_print_samples($r,\@records);
  715: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,
  716:                                                           \@field);
  717: 	    foreach (@field) { 
  718:                 $keyfields.=$_->[0].','; 
  719:             }
  720: 	    chop($keyfields);
  721: 	} else {
  722: 	    unshift(@field,['none','']);
  723: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
  724:                                                             \@field);
  725: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
  726: 	    $keyfields=join(',',sort(keys(%sone)));
  727: 	}
  728:     }
  729:     &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
  730: }
  731: 
  732: ###############################################################
  733: ###############################################################
  734: sub enroll_single_student {
  735:     my $r=shift;
  736:     # Remove non alphanumeric values from section
  737:     $env{'form.csec'}=~s/\W//g;
  738:     #
  739:     # We do the dates first because the action of making them the defaul
  740:     # in the course is entirely separate from the action of enrolling the
  741:     # student.  Also, a failure in setting the dates as default is not fatal
  742:     # to the process of enrolling / modifying a student.
  743:     my ($startdate,$enddate) = &get_dates_from_form();
  744:     if ($env{'form.makedatesdefault'}) {
  745:         $r->print(&make_dates_default($startdate,$enddate));
  746:     }
  747: 
  748:     $r->print('<h3>'.&mt('Enrolling Student').'</h3>');
  749:     $r->print('<p>'.&mt('Enrolling').' '.$env{'form.cuname'}." \@ ".
  750:               $env{'form.lcdomain'}.'</p>');
  751:     if (($env{'form.cuname'})
  752: 	&& ($env{'form.cuname'} 
  753: 	    eq &LONCAPA::clean_username($env{'form.cuname'}))
  754: 	&& ($env{'form.lcdomain'})
  755: 	&& ($env{'form.lcdomain'}
  756: 	    eq &LONCAPA::clean_domain($env{'form.lcdomain'}))) {
  757:         # Deal with home server selection
  758:         my $domain=$env{'form.lcdomain'};
  759:         my $desiredhost = $env{'form.lcserver'};
  760:         if (lc($desiredhost) eq 'default') {
  761:             $desiredhost = undef;
  762:         } else {
  763:             my %home_servers =&Apache::loncommon::get_library_servers($domain);
  764:             if (! exists($home_servers{$desiredhost})) {
  765:                 $r->print('<font color="#ff0000">'.&mt('Error').':</font>'.
  766:                           &mt('Invalid home server specified'));
  767:                 return;
  768:             }
  769:         }
  770:         $r->print(" ".&mt('with server')." $desiredhost :") if (defined($desiredhost));
  771:         # End of home server selection logic
  772: 	my $amode='';
  773:         my $genpwd='';
  774:         if ($env{'form.login'} eq 'krb') {
  775:            $amode='krb';
  776: 	   $amode.=$env{'form.krbver'};
  777:            $genpwd=$env{'form.krbarg'};
  778:         } elsif ($env{'form.login'} eq 'int') {
  779:            $amode='internal';
  780:            $genpwd=$env{'form.intarg'};
  781:         }  elsif ($env{'form.login'} eq 'loc') {
  782: 	    $amode='localauth';
  783: 	    $genpwd=$env{'form.locarg'};
  784: 	    if (!$genpwd) { $genpwd=" "; }
  785: 	}
  786:         my $home = &Apache::lonnet::homeserver($env{'form.cuname'},
  787:                                                    $env{'form.lcdomain'});
  788:         if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
  789:             # Clean out any old roles the student has in this class.
  790:             &modifystudent($env{'form.lcdomain'},$env{'form.cuname'},
  791:                            $env{'request.course.id'},$env{'form.csec'},
  792:                             $desiredhost);
  793:             my $login_result = &Apache::lonnet::modifystudent
  794:                 ($env{'form.lcdomain'},$env{'form.cuname'},
  795:                  $env{'form.cstid'},$amode,$genpwd,
  796:                  $env{'form.cfirst'},$env{'form.cmiddle'},
  797:                  $env{'form.clast'},$env{'form.cgen'},
  798:                  $env{'form.csec'},$enddate,
  799:                  $startdate,$env{'form.forceid'},
  800:                  $desiredhost,$env{'form.emailaddress'});
  801:             if ($login_result =~ /^ok/) {
  802:                 $r->print($login_result);
  803:                 $r->print("<p> ".&mt('If active, the new role will be available when the student next logs in to LON-CAPA.')."</p>");
  804:             } else {
  805:                 $r->print(&mt('unable to enroll').": ".$login_result);
  806:             }
  807: 	} else {
  808:             $r->print('<p><font color="#ff0000">'.&mt('ERROR').'</font>&nbsp;');
  809:             if ($amode =~ /^krb/) {
  810:                 $r->print(&mt('Missing Kerberos domain information.').'  ');
  811:             } else {
  812:                 $r->print(&mt('Invalid login mode or password.').'  ');
  813:             }
  814:             $r->print('<b>'.&mt('Unable to enroll').' '.$env{'form.cuname'}.'.</b></p>');
  815:         }
  816:     } else {
  817:         $r->print(&mt('Invalid username or domain'));
  818:     }    
  819: }
  820: 
  821: sub setup_date_selectors {
  822:     my ($starttime,$endtime,$mode) = @_;
  823:     if (! defined($starttime)) {
  824:         $starttime = time;
  825:         unless ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
  826:             if (exists($env{'course.'.$env{'request.course.id'}.
  827:                             '.default_enrollment_start_date'})) {
  828:                 $starttime = $env{'course.'.$env{'request.course.id'}.
  829:                                   '.default_enrollment_start_date'};
  830:             }
  831:         }
  832:     }
  833:     if (! defined($endtime)) {
  834:         $endtime = time+(6*30*24*60*60); # 6 months from now, approx
  835:         unless ($mode eq 'createcourse') {
  836:             if (exists($env{'course.'.$env{'request.course.id'}.
  837:                             '.default_enrollment_end_date'})) {
  838:                 $endtime = $env{'course.'.$env{'request.course.id'}.
  839:                                 '.default_enrollment_end_date'};
  840:             }
  841:         }
  842:     }
  843:     my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
  844:                                                             'startdate',
  845:                                                             $starttime);
  846:     my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
  847:                                                           'enddate',
  848:                                                           $endtime);
  849:     if ($mode eq 'create_enrolldates') {
  850:         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  851:                                                             'startenroll',
  852:                                                             $starttime);
  853:         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  854:                                                           'endenroll',
  855:                                                           $endtime);
  856:     }
  857:     if ($mode eq 'create_defaultdates') {
  858:         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  859:                                                             'startaccess',
  860:                                                             $starttime);
  861:         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  862:                                                           'endaccess',
  863:                                                           $endtime);
  864:     }
  865:     return ($startdateform,$enddateform);
  866: }
  867: 
  868: sub get_dates_from_form {
  869:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
  870:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate');
  871:     if ($env{'form.no_end_date'}) {
  872:         $enddate = 0;
  873:     }
  874:     return ($startdate,$enddate);
  875: }
  876: 
  877: sub date_setting_table {
  878:     my ($starttime,$endtime,$mode) = @_;
  879:     my ($startform,$endform)=&setup_date_selectors($starttime,$endtime,$mode);
  880:     my $dateDefault = '<nobr>'.
  881:         '<label><input type="checkbox" name="makedatesdefault" /> '.
  882:         &mt('make these dates the default for future enrollment').'</label>';
  883:     if ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
  884:         $dateDefault = '&nbsp;';
  885:     }
  886:     my $perpetual = '<nobr><label><input type="checkbox" name="no_end_date"';
  887:     if (defined($endtime) && $endtime == 0) {
  888:         $perpetual .= ' checked';
  889:     }
  890:     $perpetual.= ' /> '.&mt('no ending date').'</label></nobr>';
  891:     if ($mode eq 'create_enrolldates') {
  892:         $perpetual = '&nbsp;';
  893:     }
  894:     my $result = '';
  895:     $result .= "<table>\n";
  896:     $result .= '<tr><td align="right">'.&mt('Starting Date').'</td>'.
  897:         '<td>'.$startform.'</td>'.
  898:         '<td>'.$dateDefault.'</td>'."</tr>\n";
  899:     $result .= '<tr><td align="right">'.&mt('Ending Date').'</td>'.
  900:         '<td>'.$endform.'</td>'.
  901:         '<td>'.$perpetual.'</td>'."</tr>\n";
  902:     $result .= "</table>\n";
  903:     return $result;
  904: }
  905: 
  906: sub make_dates_default {
  907:     my ($startdate,$enddate) = @_;
  908:     my $result = '';
  909:     my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  910:     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
  911:     my $put_result = &Apache::lonnet::put('environment',
  912:             {'default_enrollment_start_date'=>$startdate,
  913:              'default_enrollment_end_date'  =>$enddate},$dom,$crs);
  914:     if ($put_result eq 'ok') {
  915:         $result .= "Set default start and end dates for course<br />";
  916:         #
  917:         # Refresh the course environment
  918:         &Apache::lonnet::coursedescription($env{'request.course.id'},
  919: 					   {'freshen_cache' => 1});
  920:     } else {
  921:         $result .= &mt('Unable to set default dates for course').":".$put_result.
  922:             '<br />';
  923:     }
  924:     return $result;
  925: }
  926: 
  927: ##
  928: ## Single student enrollment routines (some of them)
  929: ##
  930: sub get_student_username_domain_form {
  931:     my $r = shift;
  932:     my $domform = &Apache::loncommon::select_dom_form
  933:         ($env{'course.'.$env{'request.course.id'}.'.domain'},'cudomain',0);
  934:     my %lt=&Apache::lonlocal::texthash(
  935: 		    'eos'  => "Enroll One Student",
  936: 		    'usr'  => "Username",
  937:                     'dom'  => "Domain",
  938:                     'been' => "Begin Enrollment",
  939: 				       );
  940:     $r->print(<<END);
  941: <input type="hidden" name="action" value="enrollstudent" />
  942: <input type="hidden" name="state"  value="gotusername" />
  943: <h3>$lt{'eos'}</h3>
  944: <table>
  945: <tr><th>$lt{'usr'}:</th>
  946:     <td><input type="text" name="cuname"  size="15" /></td></tr>
  947: <tr><th>$lt{'dom'}:</th>
  948:     <td>$domform</td></tr>
  949: <tr><th>&nbsp;</th>
  950:     <td>
  951:     <input type="submit" name="Begin Enrollment" value="$lt{'been'}" />
  952:     </td></tr>
  953: </table>
  954: <script type="text/javascript">
  955: // the if prevents the script error if the browser can not handle this
  956: if ( document.studentform.cuname ) { document.studentform.cuname.focus(); }
  957: </script>
  958: END
  959:     return;
  960: }
  961: 
  962: sub print_enroll_single_student_form {
  963:     my $r=shift;
  964:     $r->print("<h3>".&mt('Enroll One Student')."</h3>");
  965:     #
  966:     my $username = &LONCAPA::clean_username($env{'form.cuname'});
  967:     my $domain   = &LONCAPA::clean_domain($env{'form.cudomain'});
  968:     my $home = &Apache::lonnet::homeserver($username,$domain);
  969:     # $new_user flags whether we are creating a new user or using an old one
  970:     my $new_user = 1;
  971:     if ($home ne 'no_host') {
  972:         $new_user = 0;
  973:     }
  974:     #
  975:     my $user_data_html = '';
  976:     my $javascript_validations = '';
  977:     if ($new_user) {
  978:         my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
  979:         # Set up authentication forms
  980:         my ($krbdef,$krbdefdom) =
  981:             &Apache::loncommon::get_kerberos_defaults($domain);
  982:         $javascript_validations=&javascript_validations('auth',$krbdefdom);
  983:         my %param = ( formname => 'document.studentform',
  984:                       kerb_def_dom => $krbdefdom,
  985:                       kerb_def_auth => $krbdef
  986:                       );
  987:         my $krbform = &Apache::loncommon::authform_kerberos(%param);
  988:         my $intform = &Apache::loncommon::authform_internal(%param);
  989:         my $locform = &Apache::loncommon::authform_local(%param);
  990:         #
  991:         # Set up domain selection form
  992:         my $homeserver_form = '';
  993:         my %servers = &Apache::loncommon::get_library_servers($domain);
  994:         $homeserver_form = '<select name="lcserver" size="1">'."\n".
  995:             '<option value="default" selected>default</option>'."\n";
  996:         while (my ($servername,$serverdescription) = each (%servers)) {
  997:             $homeserver_form .= '<option value="'.$servername.'">'.
  998:                 $serverdescription."</option>\n";
  999:         }
 1000:         $homeserver_form .= "</select>\n";
 1001:         #
 1002:         #
 1003: 	my %lt=&Apache::lonlocal::texthash(
 1004: 		       'udf'  => "User Data for",
 1005:                        'fn'   => "First Name",
 1006:                        'mn'   => "Middle Name",
 1007:                        'ln'   => "Last Name",
 1008:                        'gen'  => "Generation",
 1009:                        'hs'   => "Home Server",
 1010:                        'pswd' => "Password",
 1011: 		       'psam' => "Please select an authentication mechanism",
 1012:                        'mail' => "Email Address"
 1013: 					   );
 1014: 	my $authhelp=&Apache::loncommon::help_open_topic('Auth_Options');
 1015:         $user_data_html = <<END;
 1016: <h3>$lt{'udf'} $username\@$domain</h3>
 1017: <table>
 1018: <tr><th>$lt{'fn'}:</th>
 1019:     <td><input type="text" name="cfirst"  size="15"></td></tr>
 1020: <tr><th>$lt{'mn'}:</th>
 1021:     <td><input type="text" name="cmiddle" size="15"></td></tr>
 1022: <tr><th>$lt{'ln'}:</th>
 1023:     <td><input type="text" name="clast"   size="15"></td></tr>
 1024: <tr><th>$lt{'gen'}:</th>
 1025:     <td><input type="text" name="cgen"    size="5"> </td></tr>
 1026: <tr><th>$lt{'hs'}:</th>
 1027:     <td>$homeserver_form</td></tr>
 1028: <tr><th>$lt{'mail'}:</th>
 1029:     <td><input type="text" name="emailaddress" size="20" /></td></tr>
 1030: </table>
 1031: <h3>$lt{'pswd'}</h3>
 1032: $lt{'psam'}$authhelp
 1033: <table>
 1034: <p>
 1035: $krbform
 1036: <br />
 1037: $intform
 1038: <br />
 1039: $locform
 1040: </p>
 1041: END
 1042:     } else {
 1043:         # User already exists.  Do not worry about authentication
 1044:         my %uenv = &Apache::lonnet::dump('environment',$domain,$username);
 1045:         $javascript_validations = &javascript_validations('noauth');
 1046: 	my %lt=&Apache::lonlocal::texthash(
 1047: 		       'udf'  => "User Data for",
 1048:                        'fn'   => "First Name",
 1049:                        'mn'   => "Middle Name",
 1050:                        'ln'   => "Last Name",
 1051:                        'gen'  => "Generation",
 1052:                        'mail' => "Email Address",
 1053: 					   );
 1054:         $user_data_html = <<END;
 1055: <h3>$lt{'udf'} $username\@$domain</h3>
 1056: <input type="hidden" name="lcserver" value="default" />
 1057: <table>
 1058: <tr><th>$lt{'fn'}:</th>
 1059:     <td>
 1060:     <input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" />
 1061:     </td></tr>
 1062: <tr><th>$lt{'mn'}:</th>
 1063:     <td>
 1064:     <input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" />
 1065:     </td></tr>
 1066: <tr><th>$lt{'ln'}:</th>
 1067:     <td>
 1068:     <input type="text" name="clast"value="$uenv{'lastname'}" size="15" />
 1069:     </td></tr>
 1070: <tr><th>$lt{'gen'}:</th>
 1071:     <td>
 1072:     <input type="text" name="cgen" value="$uenv{'generation'}" size="5" />
 1073:     </td></tr>
 1074: <tr><th>$lt{'mail'}:</th>
 1075:     <td>
 1076:     <input type="text" name="emailaddress" value="$uenv{'permanentemail'}" size="20" />
 1077:     </td></tr>
 1078: </table>
 1079: END
 1080:     }
 1081:     my $date_table = &date_setting_table();
 1082:         # Print it all out
 1083:     my %lt=&Apache::lonlocal::texthash(
 1084: 		   'cd'   => "Course Data",
 1085:                    'gs'   => "Section",
 1086:                    'idsn' => "ID/Student Number",
 1087:                    'disn' => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
 1088:                    'eas'  => "Enroll as student",
 1089: 				       );
 1090:     $r->print(<<END);
 1091: <input type="hidden" name="action" value="enrollstudent" />
 1092: <input type="hidden" name="state"  value="done" />
 1093: <input type="hidden" name="cuname" value="$username" />
 1094: <input type="hidden" name="lcdomain" value="$domain" />
 1095: <script type="text/javascript" language="Javascript">
 1096: function verify(vf,sec_caller) {
 1097:     var founduname=0;
 1098:     var foundpwd=0;
 1099:     var foundname=0;
 1100:     var foundid=0;
 1101:     var foundsec=0;
 1102:     var tw;
 1103:     if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') && 
 1104: 	(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
 1105:         founduname=1;
 1106:     }
 1107:     if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
 1108: 	(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
 1109:         foundname=1;
 1110:     }
 1111:     if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
 1112:         foundsec=1;
 1113:         if (validate(sec_caller) == "error") {
 1114:             return;
 1115:         }
 1116:     }
 1117:     if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
 1118: 	foundid=1;
 1119:     }
 1120:     if (founduname==0) {
 1121: 	alert('You need to specify at least the username and domain fields');
 1122:         return;
 1123:     }
 1124:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
 1125: }
 1126: 
 1127: $javascript_validations
 1128: 
 1129: function clearpwd(vf) {
 1130:     //nothing else needs clearing
 1131: }
 1132: 
 1133: </script>
 1134: 
 1135: $user_data_html
 1136: 
 1137: <h3>$lt{'cd'}</h3>
 1138: 
 1139: <p>$lt{'gs'}: <input type="text" name="csec" size="5" />
 1140: <p>
 1141: $date_table
 1142: </p>
 1143: <h3>$lt{'idsn'}</h3>
 1144: <p>
 1145: $lt{'idsn'}: <input type="text" name="cstid" size="10">
 1146: </p><p>
 1147: <label>
 1148: <input type="checkbox" name="forceid" value="yes"> 
 1149: $lt{'disn'}
 1150: </label>
 1151: </p><p>
 1152: <input type="button" onClick="verify(this.form,this.form.csec)" value="$lt{'eas'}">
 1153: </p>
 1154: END
 1155:     return;
 1156: }
 1157: 
 1158: # ========================================================= Menu Phase Two Drop
 1159: sub print_drop_menu {
 1160:     my $r=shift;
 1161:     $r->print("<h3>".&mt('Drop Students')."</h3>");
 1162:     my $cid=$env{'request.course.id'};
 1163:     my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
 1164:     if (! defined($classlist)) {
 1165:         $r->print(&mt('There are no students currently enrolled.')."\n");
 1166:         return;
 1167:     }
 1168:     # Print out the available choices
 1169:     &show_drop_list($r,$classlist,$keylist);
 1170:     return;
 1171: }
 1172: 
 1173: # ============================================== view classlist
 1174: sub print_html_classlist {
 1175:     my ($r,$mode) = @_;
 1176:     if (! exists($env{'form.sortby'})) {
 1177:         $env{'form.sortby'} = 'username';
 1178:     }
 1179:     if ($env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
 1180:         $env{'form.Status'} = 'Active';
 1181:     }
 1182:     my $status_select = &Apache::lonhtmlcommon::StatusOptions
 1183:         ($env{'form.Status'});
 1184:     my $cid =$env{'request.course.id'};
 1185:     my $cdom=$env{'course.'.$cid.'.domain'};
 1186:     my $cnum=$env{'course.'.$cid.'.num'};
 1187:     #
 1188:     # List course personnel
 1189:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
 1190:     #
 1191:     if (! defined($env{'form.output'}) ||
 1192:         $env{'form.output'} !~ /^(csv|excel|html)$/ ) {
 1193:         $env{'form.output'} = 'html';
 1194:     }
 1195:     #
 1196:     $r->print('<br />'.&Apache::loncommon::start_data_table());
 1197:     foreach my $role (sort keys %coursepersonnel) {
 1198:         next if ($role =~ /^\s*$/);
 1199: 	$r->print(&Apache::loncommon::start_data_table_row().
 1200: 		  '<td>'.$role.'</td><td>');
 1201:         foreach my $user (split(',',$coursepersonnel{$role})) {
 1202: 	    my ($puname,$pudom)=split(':',$user);
 1203: 	    $r->print(' '.&Apache::loncommon::aboutmewrapper(
 1204:                                     &Apache::loncommon::plainname($puname,
 1205:                                                                   $pudom),
 1206:                                                              $puname,$pudom));
 1207: 	}
 1208:         $r->print('</td>'.&Apache::loncommon::end_data_table_row());
 1209:     }
 1210:     $r->print(&Apache::loncommon::end_data_table());
 1211:     #
 1212:     # Interface output
 1213:     $r->print('<input type="hidden" name="action" value="'.
 1214:               $env{'form.action'}.'" />');
 1215:     $r->print("<p>\n");
 1216:     if ($env{'form.action'} ne 'modifystudent') {
 1217: 	my %lt=&Apache::lonlocal::texthash('csv' => "CSV",
 1218:                                            'excel' => "Excel",
 1219:                                            'html'  => 'HTML');
 1220:         my $output_selector = '<select size="1" name="output" >';
 1221:         foreach my $outputformat ('html','csv','excel') {
 1222:             my $option = '<option value="'.$outputformat.'" ';
 1223:             if ($outputformat eq $env{'form.output'}) {
 1224:                 $option .= 'selected ';
 1225:             }
 1226:             $option .='>'.$lt{$outputformat}.'</option>';
 1227:             $output_selector .= "\n".$option;
 1228:         }
 1229:         $output_selector .= '</select>';
 1230:         $r->print(&mt('Output Format: [_1]',$output_selector).('&nbsp;'x3));
 1231:     }
 1232:     $r->print(&mt('Student Status: [_1]',$status_select)."\n");
 1233:     $r->print('<input type="submit" value="'.&mt('Update Display').'" />'.
 1234:               "\n</p>\n");
 1235:     #
 1236:     # Print the classlist
 1237:     $r->print('<h2>'.&mt('Current Class List').'</h2>');
 1238:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
 1239:     if (! defined($classlist)) {
 1240:         $r->print(&mt('There are no students currently enrolled.')."\n");
 1241:     } else {
 1242:         # Print out the available choices
 1243:         if ($env{'form.action'} eq 'modifystudent') {
 1244:             &show_class_list($r,'view','modify',
 1245:                              $env{'form.Status'},$classlist,$keylist);
 1246:         } else {
 1247:             &show_class_list($r,$env{'form.output'},'aboutme',
 1248:                              $env{'form.Status'},$classlist,$keylist);
 1249:         }
 1250:     }
 1251: }
 1252: 
 1253: # =================================================== Show student list to drop
 1254: sub show_class_list {
 1255:     my ($r,$mode,$linkto,$statusmode,$classlist,$keylist)=@_;
 1256:     my $cid=$env{'request.course.id'};
 1257:     my $cdom = $env{'course.'.$cid.'.domain'};
 1258:     my $cnum = $env{'course.'.$cid.'.num'};
 1259:     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
 1260:                                               $classlist,$keylist,$cdom,$cnum);
 1261:     #
 1262:     # Variables for excel output
 1263:     my ($excel_workbook, $excel_sheet, $excel_filename,$row,$format);
 1264:     #
 1265:     # Variables for csv output
 1266:     my ($CSVfile,$CSVfilename);
 1267:     #
 1268:     my $sortby = $env{'form.sortby'};
 1269:     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end|type)$/) {
 1270:         $sortby = 'username';
 1271:     }
 1272:     if (! exists($env{'form.displayphotos'})) {
 1273:         $env{'form.displayphotos'} = 'off';
 1274:     }
 1275:     my $displayphotos = $env{'form.displayphotos'};
 1276: 
 1277:     # Print out header 
 1278:     unless ($mode eq 'autoenroll') {
 1279:         $r->print(<<END);
 1280: <input type="hidden" name="state" value="$env{'form.state'}" />
 1281: END
 1282:     }
 1283:     $r->print(<<END);
 1284: <input type="hidden" name="sortby" value="$sortby" />
 1285: <input type="hidden" name="displayphotos" value="$displayphotos" />
 1286: END
 1287:     if ($mode eq 'html' || $mode eq 'view' || $mode eq 'autoenroll') {
 1288:         if ($linkto eq 'aboutme') {
 1289:             $r->print(&mt("Select a user name to view the user's personal page."));
 1290:         } elsif ($linkto eq 'modify') {
 1291:             $r->print(&mt("Select a user name to modify the student's information"));
 1292:         }
 1293: 	my %lt=&Apache::lonlocal::texthash(
 1294:                                            'usrn'   => "username",
 1295:                                            'dom'    => "domain",
 1296:                                            'sn'     => "student name",
 1297:                                            'sec'    => "section",
 1298:                                            'grp'    => "active groups",
 1299:                                            'start'  => "start date",
 1300:                                            'end'    => "end date",
 1301:                                            'type'   => "enroll type/action",
 1302:                                            'photo'  => "photo",
 1303: 					   );
 1304:         unless ($mode eq 'autoenroll') {
 1305:             $r->print(<<END);
 1306: <input type="hidden" name="sname"  value="" />
 1307: <input type="hidden" name="sdom"   value="" />
 1308: END
 1309:         }
 1310:         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
 1311:             $r->print('
 1312: <script type="text/javascript">
 1313: function photowindow(photolink) {
 1314:     var title = "Photo_Viewer";
 1315:     var options = "scrollbars=1,resizable=1,menubar=0";
 1316:     options += ",width=240,height=240";
 1317:     stdeditbrowser = open(photolink,title,options,"1");
 1318:     stdeditbrowser.focus();
 1319: }
 1320: </script>
 1321:            ');
 1322:         }
 1323:         $r->print("
 1324: <p>
 1325: ".&Apache::loncommon::start_data_table()."
 1326: <tr>
 1327:         ");
 1328:         if ($mode eq 'autoenroll') {
 1329:             $r->print("
 1330:  <th><a href=\"javascript:document.studentform.sortby.value='type';document.studentform.submit();\">$lt{'type'}</a></th>
 1331:             ");
 1332:         } else {
 1333:             $r->print("
 1334: <th>Count</th>
 1335:             ");
 1336:         }
 1337:         $r->print(<<END);
 1338:     <th>
 1339:        <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">$lt{'usrn'}</a>
 1340:     </th><th>
 1341:        <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">$lt{'dom'}</a>
 1342:     </th><th>
 1343:        <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
 1344:     </th><th>
 1345:        <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">$lt{'sn'}</a>
 1346:     </th><th>
 1347:        <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">$lt{'sec'}</a>
 1348:     </th><th>
 1349:        <a href="javascript:document.studentform.sortby.value='start';document.studentform.submit();">$lt{'start'}</a>
 1350:     </th><th>
 1351:        <a href="javascript:document.studentform.sortby.value='end';document.studentform.submit();">$lt{'end'}</a>
 1352:     </th><th>
 1353:        <a href="javascript:document.studentform.sortby.value='groups';document.studentform.submit();">$lt{'grp'}</a>
 1354:     </th>
 1355: END
 1356:         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
 1357:             my %photo_options = &Apache::lonlocal::texthash(
 1358:                                                             'on' => 'Show',
 1359:                                                             'off' => 'Hide',
 1360:                                                             );
 1361:             my $photochg = 'on';
 1362:             if ($displayphotos eq 'on') {
 1363:                 $photochg = 'off';
 1364:             }
 1365:             $r->print('    <th>'."\n".'     '. 
 1366:             '<a href="javascript:document.studentform.displayphotos.value='.
 1367:                       "'".$photochg."'".';document.studentform.submit();">'.
 1368:                       $photo_options{$photochg}.'</a>&nbsp;'.$lt{'photo'}."\n".
 1369:                       '    </th>'."\n");
 1370:         }
 1371:         $r->print("  </tr>\n");
 1372:     } elsif ($mode eq 'csv') {
 1373: 	#
 1374: 	# Open a file
 1375: 	$CSVfilename = '/prtspool/'.
 1376: 	    $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
 1377:             time.'_'.rand(1000000000).'.csv';
 1378: 	unless ($CSVfile = Apache::File->new('>/home/httpd'.$CSVfilename)) {
 1379: 	    $r->log_error("Couldn't open $CSVfilename for output $!");
 1380: 	    $r->print("Problems occured in writing the csv file.  ".
 1381: 		      "This error has been logged.  ".
 1382: 		      "Please alert your LON-CAPA administrator.");
 1383: 	    $CSVfile = undef;
 1384: 	}
 1385: 	#
 1386: 	# Write headers and data to file
 1387:         if($statusmode eq 'Expired') {
 1388:             print $CSVfile '"'.&mt('Students with expired roles').'"'."\n";
 1389:         }
 1390:         if($statusmode eq 'Future') {
 1391:             print $CSVfile '"'.&mt('Students with future roles').'"'."\n";
 1392:         }
 1393:         if ($statusmode eq 'Any') {
 1394:             print $CSVfile '"'.join('","',map {
 1395: 		&Apache::loncommon::csv_translate(&mt($_))
 1396:                 } ("username","domain","ID","student name",
 1397:                    "section","start date","end date","status","active groups"))
 1398:                   .'"'."\n";
 1399:         } else {
 1400:             print $CSVfile '"'.join('","',map {
 1401: 		&Apache::loncommon::csv_translate(&mt($_))
 1402:                 } ("username","domain","ID","student name",
 1403:                    "section","start date","end date","active groups")).'"'."\n";
 1404:         }
 1405:     } elsif ($mode eq 'excel') {
 1406:         # Create the excel spreadsheet
 1407:         ($excel_workbook,$excel_filename,$format) = 
 1408:             &Apache::loncommon::create_workbook($r);
 1409:         return if (! defined($excel_workbook));
 1410:         $excel_sheet = $excel_workbook->addworksheet('classlist');
 1411:         #
 1412:         my $description = 'Class List for '.
 1413:             $env{'course.'.$env{'request.course.id'}.'.description'};
 1414:         $excel_sheet->write($row++,0,$description,$format->{'h1'});
 1415:         #
 1416:         $excel_sheet->write($row++,0,["username","domain","ID",
 1417:                                       "student name","section",
 1418:                                       "start date","end date","status",
 1419:                                       "active groups"],
 1420:                             $format->{'bold'});
 1421:     }
 1422:     #
 1423:     # Sort the students
 1424:     my %index;
 1425:     my $i;
 1426:     foreach (@$keylist) {
 1427:         $index{$_} = $i++;
 1428:     }
 1429:     $index{'groups'} = scalar(@{$keylist});
 1430:     my $index  = $index{$sortby};
 1431:     my $second = $index{'username'};
 1432:     my $third  = $index{'domain'};
 1433:     my @Sorted_Students = sort {
 1434:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
 1435:             ||
 1436:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
 1437:             ||
 1438:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
 1439:         } (keys(%$classlist));
 1440:     my $studentcount = 0;
 1441:     my $autocount = 0;
 1442:     my $manualcount = 0;
 1443:     my $unlockcount = 0;
 1444:     my $lockcount = 0;
 1445:     foreach my $student (@Sorted_Students) {
 1446:         my $sdata = $classlist->{$student};
 1447:         my $groups = $classgroups->{$student};
 1448:         my $username = $sdata->[$index{'username'}];
 1449:         my $domain   = $sdata->[$index{'domain'}];
 1450:         my $section  = $sdata->[$index{'section'}];
 1451:         my $active_groups;
 1452:         if (ref($groups->{active}) eq 'HASH') {
 1453:             $active_groups = join(', ',keys(%{$groups->{'active'}}));
 1454:         }
 1455:         my $name     = $sdata->[$index{'fullname'}];
 1456:         my $id       = $sdata->[$index{'id'}];
 1457:         my $status   = $sdata->[$index{'status'}];
 1458:         my $start    = $sdata->[$index{'start'}];
 1459:         my $end      = $sdata->[$index{'end'}];
 1460:         my $type     = $sdata->[$index{'type'}];
 1461:         next if (($statusmode ne 'Any') && ($status ne $statusmode));
 1462:         if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
 1463:             if (! defined($start) || $start == 0) {
 1464:                 $start = &mt('none');
 1465:             } else {
 1466:                 $start = &Apache::lonlocal::locallocaltime($start);
 1467:             }
 1468:             if (! defined($end) || $end == 0) {
 1469:                 $end = &mt('none');
 1470:             } else {
 1471:                 $end = &Apache::lonlocal::locallocaltime($end);
 1472:             }
 1473: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1474:             if ($mode eq 'autoenroll') {
 1475:                 my $lockedtype = $sdata->[$index{'lockedtype'}];
 1476:                 $studentcount++;
 1477:                 my $cellentry;
 1478:                 if ($type eq 'auto') {
 1479:                     $cellentry = '<b>'.&mt('auto').'</b>&nbsp;<label><input type="checkbox" name="chgauto" value="'.$username.':'.$domain.'" />&nbsp;Change</label>';
 1480:                     $autocount ++;
 1481:                 } else {
 1482:                     $cellentry = '<table border="0" cellspacing="0"><tr><td rowspan="2"><b>'.&mt('manual').'</b></td><td><nobr><label><input type="checkbox" name="chgmanual" value="'.$username.':'.$domain.'" />&nbsp;Change</label></nobr></td></tr><tr><td><nobr>';
 1483:                     $manualcount ++;
 1484:                     if ($lockedtype) {
 1485:                         $cellentry .= '<label><input type="checkbox" name="unlockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Unlock').'</label>';
 1486:                         $unlockcount ++;
 1487:                     } else {
 1488:                         $cellentry .= '<label><input type="checkbox" name="lockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Lock').'</label>';
 1489:                         $lockcount ++;
 1490:                     }
 1491:                     $cellentry .= '</nobr></td></tr></table>';
 1492:                 }
 1493:                 $r->print("<td>$cellentry<td>\n    ");
 1494:             } else {
 1495:                 $r->print("<td>".(++$studentcount)."</td><td>\n    ");
 1496:             }
 1497:             if ($linkto eq 'nothing') {
 1498:                 $r->print($username);
 1499:             } elsif ($linkto eq 'aboutme') {
 1500:                 $r->print(&Apache::loncommon::aboutmewrapper($username,
 1501:                                                              $username,
 1502:                                                              $domain));
 1503:             } elsif ($linkto eq 'modify') {
 1504:                 $r->print('<a href="'.
 1505:                           "javascript:document.studentform.sname.value='".
 1506:                           $username.
 1507:                           "';document.studentform.sdom.value='".$domain.
 1508:                           "';document.studentform.state.value='selected".
 1509:                           "';document.studentform.submit();".'">'.
 1510:                           $username."</a>\n");
 1511:             }
 1512:             $r->print(<<"END");
 1513:     </td>
 1514:     <td>$domain</td>
 1515:     <td>$id</td>
 1516:     <td>$name</td>
 1517:     <td>$section</td>
 1518:     <td>$start</td>
 1519:     <td>$end</td>
 1520:     <td>$active_groups</td>
 1521: END
 1522:             if ($env{'course.'.$env{'request.course.id'}.
 1523: 			 '.internal.showphoto'}) {
 1524:                 if ($displayphotos eq 'on') {
 1525:                     my $imgurl = 
 1526: 			&Apache::lonnet::retrievestudentphoto($domain,
 1527: 							      $username,'gif',
 1528: 							      'thumbnail');
 1529:                 
 1530:                     $r->print('    <td align="right"><a href="javascript:photowindow('."'".&Apache::lonnet::studentphoto($domain,$username,'jpg')."'".')"><img src="'.$imgurl.'" border="1"></a></td>');
 1531:                 } else {
 1532:                     $r->print('    <td>&nbsp;</td>  ');
 1533:                 }
 1534:             }
 1535: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1536:         } elsif ($mode eq 'csv') {
 1537:             next if (! defined($CSVfile));
 1538:             # no need to bother with $linkto
 1539:             if (! defined($start) || $start == 0) {
 1540:                 $start = &mt('none');
 1541:             } else {
 1542:                 $start = &Apache::lonlocal::locallocaltime($start);
 1543:             }
 1544:             if (! defined($end) || $end == 0) {
 1545:                 $end = &mt('none');
 1546:             } else {
 1547:                 $end = &Apache::lonlocal::locallocaltime($end);
 1548:             }
 1549:             my @line = ();
 1550:             foreach ($username,$domain,$id,$name,$section,$start,$end) {
 1551:                 push @line,&Apache::loncommon::csv_translate($_);
 1552:             }
 1553:             if ($statusmode eq 'Any') {
 1554:                 push @line,&Apache::loncommon::csv_translate($status);
 1555:             }
 1556:             push @line,&Apache::loncommon::csv_translate($active_groups);
 1557:             print $CSVfile '"'.join('","',@line).'"'."\n";
 1558:         } elsif ($mode eq 'excel') {
 1559:             $excel_sheet->write($row,0,[$username,$domain,$id,
 1560:                                           $name,$section]);
 1561:             my $col = 5;
 1562:             foreach my $time ($start,$end) {
 1563:                 if (defined($time) && $time != 0) {
 1564:                     $excel_sheet->write($row,$col++,
 1565:                                    &Apache::lonstathelpers::calc_serial($time),
 1566:                                     $format->{'date'});
 1567:                 } else {
 1568:                     $excel_sheet->write($row,$col++,'none');
 1569:                 }                    
 1570:             }
 1571:             $excel_sheet->write($row,$col++,$status);
 1572:             $excel_sheet->write($row,$col++,$active_groups);
 1573:             $row++;
 1574:         }
 1575:     }
 1576:     if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
 1577: 	$r->print(&Apache::loncommon::end_data_table().'<br />');
 1578:     } elsif ($mode eq 'excel') {
 1579:         $excel_workbook->close();
 1580:         $r->print('<p><a href="'.$excel_filename.'">'.
 1581:                   &mt('Your Excel spreadsheet').'</a> '.&mt('is ready for download').'.</p>'."\n");
 1582:     } elsif ($mode eq 'csv') {
 1583:         close($CSVfile);
 1584:         $r->print('<a href="'.$CSVfilename.'">'.
 1585:                   &mt('Your CSV file').'</a> is ready for download.'.
 1586:                   "\n");
 1587:         $r->rflush();
 1588:     }
 1589:     if ($mode eq 'autoenroll') {
 1590:         return ($studentcount,$autocount,$manualcount,$lockcount,$unlockcount);
 1591:     }
 1592:     return;
 1593: }
 1594: 
 1595: 
 1596: #
 1597: # print out form for modification of a single students data
 1598: #
 1599: sub print_modify_student_form {
 1600:     my $r = shift();
 1601:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1602:                                             ['sdom','sname']);    
 1603:     my $sname  = $env{'form.sname'};
 1604:     my $sdom   = $env{'form.sdom'};
 1605:     my $sortby = $env{'form.sortby'};
 1606:     # determine the students name information
 1607:     my %info=&Apache::lonnet::get('environment',
 1608:                                   ['firstname','middlename',
 1609:                                    'lastname','generation','id'],
 1610:                                   $sdom, $sname);
 1611:     my ($tmp) = keys(%info);
 1612:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1613:         $r->print('<font color="#ff0000" size="+2">'.&mt('Error').'</font>'.
 1614:                   '<p>'.
 1615:                   &mt('Unable to retrieve environment data for').' '.$sname.
 1616:                   &mt('in domain').' '.$sdom.'</p><p>'.
 1617:                   &mt('Please contact your LON-CAPA administrator regarding this situation.').'</p>'.&Apache::loncommon::end_page());
 1618:         return;
 1619:     }
 1620:     # determine the students starting and ending times and section
 1621:     my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
 1622:     if ($starttime =~ /^error/) {
 1623:         $r->print('<h2>'&mt('Error').'</h2>');
 1624:         $r->print('<p>'.$starttime.'</p>');
 1625:         return;
 1626:     }
 1627:     #
 1628:     # Deal with date forms
 1629:     my $current_date_description = '';
 1630:     my $textdate = '';
 1631: 
 1632:     if (! defined($starttime) || $starttime == 0) {
 1633:         $current_date_description = &mt('Current Starting Date: not set').
 1634:             '<br />';
 1635:     } else {
 1636:         $current_date_description = 
 1637:             &mt('Current Starting Date: [_1]',
 1638:                 &Apache::lonlocal::locallocaltime($starttime)).'<br />';
 1639:     }
 1640:     if (! defined($endtime) || $endtime == 0) {
 1641:         $current_date_description.= &mt('Current Ending Date: not set').
 1642:             '<br />';
 1643:     } else {
 1644:         $current_date_description.= 
 1645:             &mt('Current Ending Date: [_1]',
 1646:                 &Apache::lonlocal::locallocaltime($endtime)).'<br />';
 1647: 
 1648:     }
 1649:     my $date_table = &date_setting_table($starttime,$endtime);
 1650:     #
 1651:     if (! exists($env{'form.Status'}) || 
 1652:         $env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
 1653:         $env{'form.Status'} = 'crap';
 1654:     }
 1655:     # Make sure student is enrolled in course
 1656:     my %lt=&Apache::lonlocal::texthash(
 1657: 	           'mef'   => "Modify Enrollment for",
 1658:                    'odcc'  => "Only domain coordinators can change a users password.",
 1659:                    'sn'    => "Student Name",
 1660:                    'fn'    => "First",
 1661:                    'mn'    => "Middle",
 1662:                    'ln'    => "Last",
 1663:                    'gen'   => "Generation",
 1664:                    'sid'   => "Student ID",
 1665:                    'disn'  => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
 1666:                    'sec'   => "Section",
 1667:                    'sm'    => "Submit Modifications",
 1668: 				       );
 1669: # Check if section name is valid
 1670:     my $section_check = &section_check_js();
 1671:     $r->print(<<"END");
 1672: <script type="text/javascript">
 1673: $section_check
 1674: function secverify(formname,caller) {
 1675:     if (validate(caller) == "error") {
 1676:         return;
 1677:     } else {
 1678:         formname.submit();
 1679:     }
 1680: }
 1681: </script>
 1682: <p>
 1683: <font size="+1">
 1684: $lt{'odcc'}
 1685: </font>
 1686: </p>
 1687: <input type="hidden" name="slogin"  value="$sname"  />
 1688: <input type="hidden" name="sdomain" value="$sdom" />
 1689: <input type="hidden" name="action"  value="modifystudent" />
 1690: <input type="hidden" name="state"   value="done" />
 1691: <input type="hidden" name="sortby"  value="$sortby" />
 1692: <input type="hidden" name="Status"  value="$env{'form.Status'}" />
 1693: <h2>$lt{'mef'} $info{'firstname'} $info{'middlename'} 
 1694: $info{'lastname'} $info{'generation'}, $sname\@$sdom</h2>
 1695: <p>
 1696: <b>$lt{'sn'}</b>
 1697: <table>
 1698: <tr><th>$lt{'fn'}</th><th>$lt{'mn'}</th><th>$lt{'ln'}</th><th>$lt{'gen'}</th></tr>
 1699: <tr><td>
 1700: <input type="text" name="firstname"  value="$info{'firstname'}"  /></td><td>
 1701: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
 1702: <input type="text" name="lastname"   value="$info{'lastname'}"   /></td><td>
 1703: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
 1704: </table>
 1705: </p><p>
 1706: <b>$lt{'sid'}</b>: <input type="text" name="id" value="$info{'id'}" size="12"/>
 1707: </p><p>
 1708: <label>
 1709: <input type="checkbox" name="forceid" > 
 1710: $lt{'disn'}
 1711: </label>
 1712: </p><p>
 1713: <b>$lt{'sec'}</b>: <input type="text" name="section" value="$section" size="14"/>
 1714: </p>
 1715: <p>$current_date_description</p>
 1716: <p>$date_table</p>
 1717: <input type="button" value="$lt{'sm'}" onClick="secverify(this.form,this.form.section)" />
 1718: END
 1719:     $r->print(&Apache::loncommon::end_page());
 1720:     return;
 1721: }
 1722: 
 1723: #
 1724: # modify a single students section 
 1725: #
 1726: sub modify_single_student {
 1727:     my ($r) = @_;
 1728:     #
 1729:     # Remove non alphanumeric values from the section
 1730:     $env{'form.section'} =~ s/\W//g;
 1731:     #
 1732:     # Do the date defaults first
 1733:     my ($starttime,$endtime) = &get_dates_from_form();
 1734:     if ($env{'form.makedatesdefault'}) {
 1735:         $r->print(&make_dates_default($starttime,$endtime));
 1736:     }
 1737:     # Get the 'sortby' and 'Status' variables so the user goes back to their
 1738:     # previous screen
 1739:     my $sortby = $env{'form.sortby'};
 1740:     my $status = $env{'form.Status'};
 1741:     #
 1742:     # We always need this information
 1743:     my $slogin     = $env{'form.slogin'};
 1744:     my $sdom       = $env{'form.sdomain'};
 1745:     #
 1746:     # Get the old data
 1747:     my %old=&Apache::lonnet::get('environment',
 1748:                                  ['firstname','middlename',
 1749:                                   'lastname','generation','id'],
 1750:                                  $sdom, $slogin);
 1751:     $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
 1752:                                                   $env{'request.course.id'});
 1753:     my ($tmp) = keys(%old);
 1754:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1755:         $r->print(&mt('There was an error determining the environment values for')." $slogin \@ $sdom.");
 1756:         return;
 1757:     }
 1758:     undef $tmp;
 1759:     #
 1760:     # Get the new data
 1761:     my $firstname  = $env{'form.firstname'};
 1762:     my $middlename = $env{'form.middlename'};
 1763:     my $lastname   = $env{'form.lastname'};
 1764:     my $generation = $env{'form.generation'};
 1765:     my $section    = $env{'form.section'};
 1766:     my $courseid   = $env{'request.course.id'};
 1767:     my $sid        = $env{'form.id'};
 1768:     my $displayable_starttime = localtime($starttime);
 1769:     my $displayable_endtime   = localtime($endtime);
 1770:     # 
 1771:     # check for forceid override
 1772:     if ((defined($old{'id'})) && ($old{'id'} ne '') && 
 1773:         ($sid ne $old{'id'}) && (! exists($env{'form.forceid'}))) {
 1774:         $r->print("<font color=\"ff0000\">".&mt('You changed the students id but did not disable the ID change safeguard. The students id will not be changed.')."</font>");
 1775:         $sid = $old{'id'};
 1776:     }
 1777:     #
 1778:     # talk to the user about what we are going to do
 1779:     my %lt=&Apache::lonlocal::texthash(
 1780: 	           'mdu'   => "Modifying data for user",
 1781:                    'si'    => "Student Information",
 1782:                    'fd'    => "Field",
 1783:                    'ov'    => "Old Value",
 1784:                    'nv'    => "New Value",
 1785:                    'fn'    => "First name",
 1786:                    'mn'    => "Middle name",
 1787:                    'ln'    => "Last name",
 1788:                    'gen'   => "Generation",
 1789:                    'sec'   => "Section",
 1790:                    'ri'    => "Role Information",
 1791:                    'st'    => "Start Time",
 1792:                    'et'    => "End Time",
 1793: 				       );
 1794:     $r->print(<<END);
 1795:     <h2>$lt{'mdu'} $slogin \@ $sdom </h2>
 1796: <h3>$lt{'si'}</h3>
 1797: <table rules="rows" border="1" cellpadding="3" >
 1798: <tr>
 1799:     <th> $lt{'fd'} </th>
 1800:     <th> $lt{'ov'} </th>
 1801:     <th> $lt{'nv'} </th>
 1802: </tr>
 1803: <tr>
 1804:     <td> <b>$lt{'fn'}</b> </td>
 1805:     <td> $old{'firstname'} </td>
 1806:     <td> $firstname </td>
 1807: </tr><tr>
 1808:     <td> <b>$lt{'mn'}</b> </td>
 1809:     <td> $old{'middlename'} </td>
 1810:     <td> $middlename </td>
 1811: </tr><tr>
 1812:     <td> <b>$lt{'ln'}</b> </td>
 1813:     <td> $old{'lastname'} </td>
 1814:     <td> $lastname </td>
 1815: </tr><tr>
 1816:     <td> <b>$lt{'gen'}</b> </td>
 1817:     <td> $old{'generation'} </td>
 1818:     <td> $generation </td>
 1819: </tr><tr>
 1820:     <td> <b>ID</b> </td>
 1821:     <td> $old{'id'} </td>
 1822:     <td> $sid </td>
 1823: </tr><tr>
 1824:     <td> <b>$lt{'sec'}</b> </td>
 1825:     <td> $old{'section'} </td>
 1826:     <td> $section</td>
 1827: </tr>
 1828: </table>
 1829: <h3>$lt{'ri'}</h3>
 1830: <table>
 1831: <tr><td align="right"><b>$lt{'st'}:</b></td><td> $displayable_starttime </td></tr>
 1832: <tr><td align="right"><b>$lt{'et'}:</b></td><td> $displayable_endtime   </td></tr>
 1833: </table>
 1834: <p>
 1835: END
 1836:     #
 1837:     # Send request(s) to modify data (final undef is for 'desiredhost',
 1838:     # which is a moot point because the student already has an account.
 1839:     my $modify_section_results = &modifystudent($sdom,$slogin,
 1840:                                                 $env{'request.course.id'},
 1841:                                                 $section,undef);
 1842:     if ($modify_section_results !~ /^ok/) {
 1843:         $r->print(&mt('An error occured during the attempt to change the section for this student.')."<br />");
 1844:     }
 1845:     my $roleresults = &Apache::lonnet::modifystudent
 1846:         ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
 1847:          $generation,$section,$endtime,$starttime,$env{'form.forceid'});
 1848:     if ($roleresults eq 'refused' ) {
 1849:         $r->print(&mt('Your request to change the role information for this student was refused. You do not appear to have sufficient authority to change student information.'));
 1850:     } elsif ($roleresults !~ /ok/) {
 1851:         $r->print(&mt('An error occurred during the attempt to change the role information for this student.')."  <br />".
 1852:                   &mt('The error reported was')." ".
 1853:                   $roleresults);
 1854:         &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
 1855:                                  " data for ".$slogin." \@ ".$sdom." by ".
 1856:                                  $env{'user.name'}." \@ ".$env{'user.domain'}.
 1857:                                  ":".$roleresults);
 1858:     } else { # everything is okay!
 1859:         $r->print(&mt('Student information updated successfully.')." <br />".
 1860:                   &mt('The student must log out and log in again to see these changes.'));
 1861:     }
 1862:     my $Masd=&mt('Modify another students data');
 1863:     $r->print(<<END);
 1864: </p><p>
 1865: <input type="hidden" name="action" value="modifystudent" />
 1866: <input type="hidden" name="sortby" value="$sortby" />
 1867: <input type="hidden" name="Status" value="$status" />
 1868: <a href="javascript:document.studentform.submit();">$Masd</a>
 1869: END
 1870:     $r->print(&Apache::loncommon::end_page());
 1871:     return;
 1872: }
 1873: 
 1874: sub get_enrollment_data {
 1875:     my ($sname,$sdomain) = @_;
 1876:     my $courseid = $env{'request.course.id'};
 1877:     my $cdom = $env{'course.'.$courseid.'.domain'};
 1878:     my $cnum = $env{'course.'.$courseid.'.num'};
 1879:     my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
 1880:     my ($tmp) = keys(%roles);
 1881:     # Bail out if we were unable to get the students roles
 1882:     return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
 1883:     # Go through the roles looking for enrollment in this course
 1884:     my ($end,$start) = (undef,undef);
 1885:     my $section = '';
 1886:     my $count = scalar(keys(%roles));
 1887:     while (my ($course,$role) = each(%roles)) {
 1888:         if ($course=~m{^/\Q$cdom\E/\Q$cnum\E/*\s*(\w+)*_st$} ) {
 1889:             #
 1890:             # Get active role
 1891:             $section=$1;
 1892:             (undef,$end,$start)=split(/\_/,$role);
 1893:             my $now=time;
 1894:             my $notactive=0;
 1895:             if ($start) {
 1896:                 if ($now<$start) { $notactive=1; }
 1897:             }
 1898:             if ($end) {
 1899:                 if ($now>$end) { $notactive=1; }
 1900:             } 
 1901:             unless ($notactive) { return ($start,$end,$section); }
 1902:         }
 1903:     }
 1904:     return ($start,$end,$section);
 1905: }
 1906: 
 1907: #################################################
 1908: #################################################
 1909: 
 1910: =pod
 1911: 
 1912: =item show_drop_list
 1913: 
 1914: Display a list of students to drop
 1915: Inputs: 
 1916: 
 1917: =over 4
 1918: 
 1919: =item $r, Apache request
 1920: 
 1921: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
 1922: 
 1923: =item $keylist, array pointer returned from loncoursedata::get_classlist() 
 1924: which describes the order elements are stored in the %$classlist values.
 1925: 
 1926: =item $nosort, if true, sorting links are omitted.
 1927: 
 1928: =back
 1929: 
 1930: =cut
 1931: 
 1932: #################################################
 1933: #################################################
 1934: sub show_drop_list {
 1935:     my ($r,$classlist,$keylist,$nosort)=@_;
 1936:     my $cid=$env{'request.course.id'};
 1937:     if (! exists($env{'form.sortby'})) {
 1938:         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1939:                                                 ['sortby']);
 1940:     }
 1941:     my $sortby = $env{'form.sortby'};
 1942:     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end)$/) {
 1943:         $sortby = 'username';
 1944:     }
 1945:     my $cdom = $env{'course.'.$cid.'.domain'};
 1946:     my $cnum = $env{'course.'.$cid,'.num'};
 1947:     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
 1948:                                               $classlist,$keylist,$cdom,$cnum);
 1949:     #
 1950:     my $action = "drop";
 1951:     $r->print(<<END);
 1952: <input type="hidden" name="sortby" value="$sortby" />
 1953: <input type="hidden" name="action" value="$action" />
 1954: <input type="hidden" name="state"  value="done" />
 1955: <script>
 1956: function checkAll(field) {
 1957:     for (i = 0; i < field.length; i++)
 1958:         field[i].checked = true ;
 1959: }
 1960: 
 1961: function uncheckAll(field) {
 1962:     for (i = 0; i < field.length; i++)
 1963:         field[i].checked = false ;
 1964: }
 1965: </script>
 1966: <p>
 1967: <input type="hidden" name="phase" value="four">
 1968: END
 1969: 
 1970: my %lt=&Apache::lonlocal::texthash('usrn'   => "username",
 1971:                                    'dom'    => "domain",
 1972:                                    'sn'     => "student name",
 1973:                                    'sec'    => "section",
 1974:                                    'start'  => "start date",
 1975:                                    'end'    => "end date",
 1976:                                    'groups' => "active groups",
 1977:                                    );
 1978:     if ($nosort) {
 1979: 	$r->print(&Apache::loncommon::start_data_table());
 1980:         $r->print(<<END);
 1981: <tr>
 1982:     <th>&nbsp;</th>
 1983:     <th>$lt{'usrn'}</th>
 1984:     <th>$lt{'dom'}</th>
 1985:     <th>ID</th>
 1986:     <th>$lt{'sn'}</th>
 1987:     <th>$lt{'sec'}</th>
 1988:     <th>$lt{'start'}</th>
 1989:     <th>$lt{'end'}</th>
 1990:     <th>$lt{'groups'}</th>
 1991: </tr>
 1992: END
 1993: 
 1994:     } else  {
 1995: 	$r->print(&Apache::loncommon::start_data_table());
 1996:         $r->print(<<END);
 1997: <tr><th>&nbsp;</th>
 1998:     <th>
 1999:        <a href="/adm/dropadd?action=$action&sortby=username">$lt{'usrn'}</a>
 2000:     </th><th>
 2001:        <a href="/adm/dropadd?action=$action&sortby=domain">$lt{'dom'}</a>
 2002:     </th><th>
 2003:        <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
 2004:     </th><th>
 2005:        <a href="/adm/dropadd?action=$action&sortby=fullname">$lt{'sn'}</a>
 2006:     </th><th>
 2007:        <a href="/adm/dropadd?action=$action&sortby=section">$lt{'sec'}</a>
 2008:     </th><th>
 2009:        <a href="/adm/dropadd?action=$action&sortby=start">$lt{'start'}</a>
 2010:     </th><th>
 2011:        <a href="/adm/dropadd?action=$action&sortby=end">$lt{'end'}</a>
 2012:     </th><th>
 2013:        <a href="/adm/dropadd?action=$action&sortby=groups">$lt{'groups'}</a>
 2014:     </th>
 2015: </tr>
 2016: END
 2017:     }
 2018:     #
 2019:     # Sort the students
 2020:     my %index;
 2021:     my $i;
 2022:     foreach (@$keylist) {
 2023:         $index{$_} = $i++;
 2024:     }
 2025:     $index{'groups'} = scalar(@$keylist);
 2026:     my $index  = $index{$sortby};
 2027:     my $second = $index{'username'};
 2028:     my $third  = $index{'domain'};
 2029:     my @Sorted_Students = sort {
 2030:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
 2031:             ||
 2032:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
 2033:             ||
 2034:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
 2035:         } (keys(%$classlist));
 2036:     foreach my $student (@Sorted_Students) {
 2037:         my $error;
 2038:         my $sdata = $classlist->{$student};
 2039:         my $username = $sdata->[$index{'username'}];
 2040:         my $domain   = $sdata->[$index{'domain'}];
 2041:         my $section  = $sdata->[$index{'section'}];
 2042:         my $name     = $sdata->[$index{'fullname'}];
 2043:         my $id       = $sdata->[$index{'id'}];
 2044:         my $start    = $sdata->[$index{'start'}];
 2045:         my $end      = $sdata->[$index{'end'}];
 2046:         my $groups = $classgroups->{$student};
 2047:         my $active_groups;
 2048:         if (ref($groups->{active}) eq 'HASH') {
 2049:             $active_groups = join(', ',keys(%{$groups->{'active'}}));
 2050:         }
 2051:         if (! defined($start) || $start == 0) {
 2052:             $start = &mt('none');
 2053:         } else {
 2054:             $start = &Apache::lonlocal::locallocaltime($start);
 2055:         }
 2056:         if (! defined($end) || $end == 0) {
 2057:             $end = &mt('none');
 2058:         } else {
 2059:             $end = &Apache::lonlocal::locallocaltime($end);
 2060:         }
 2061:         my $status   = $sdata->[$index{'status'}];
 2062:         next if ($status ne 'Active');
 2063:         #
 2064:         $r->print(&Apache::loncommon::start_data_table_row());
 2065:         $r->print(<<"END");
 2066:     <td><input type="checkbox" name="droplist" value="$student"></td>
 2067:     <td>$username</td>
 2068:     <td>$domain</td>
 2069:     <td>$id</td>
 2070:     <td>$name</td>
 2071:     <td>$section</td>
 2072:     <td>$start</td>
 2073:     <td>$end</td>
 2074:     <td>$active_groups</td>
 2075: END
 2076:         $r->print(&Apache::loncommon::end_data_table_row());
 2077:     }
 2078:     $r->print(&Apache::loncommon::end_data_table().'<br />');
 2079:     %lt=&Apache::lonlocal::texthash(
 2080: 	               'dp'   => "Drop Students",
 2081:                        'ca'   => "check all",
 2082:                        'ua'   => "uncheck all",
 2083: 				       );
 2084:     $r->print(<<"END");
 2085: </p><p>
 2086: <input type="button" value="$lt{'ca'}" onclick="javascript:checkAll(document.studentform.droplist)"> &nbsp;
 2087: <input type="button" value="$lt{'ua'}" onclick="javascript:uncheckAll(document.studentform.droplist)"> 
 2088: <p><input type=submit value="$lt{'dp'}"></p>
 2089: END
 2090:     return;
 2091: }
 2092: 
 2093: #
 2094: # Print out the initial form to get the courselist file
 2095: #
 2096: sub print_first_courselist_upload_form {
 2097:     my $r=shift;
 2098:     my $str;
 2099:     $str  = '<input type="hidden" name="phase" value="two">';
 2100:     $str .= '<input type="hidden" name="action" value="upload" />';
 2101:     $str .= '<input type="hidden"   name="state"  value="got_file" />';
 2102:     $str .= "<h3>".&mt('Upload a class list')."</h3>\n";
 2103:     $str .= &Apache::loncommon::upfile_select_html();
 2104:     $str .= "<p>\n";
 2105:     $str .= '<input type="submit" name="fileupload" value="'.
 2106:         &mt('Upload class list').'">'."\n";
 2107:     $str .= '<label><input type="checkbox" name="noFirstLine" /> '.
 2108:         &mt('Ignore First Line')."</label></p>\n";
 2109:     $str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
 2110:                          &mt("How do I create a class list from a spreadsheet")).
 2111:                              "<br />\n";
 2112:     $str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 2113:                            &mt("How do I create a CSV file from a spreadsheet")).
 2114:                                "<br />\n";
 2115:     $str .= &Apache::loncommon::end_page();
 2116:     $r->print($str);
 2117:     return;
 2118: }
 2119: 
 2120: # ================================================= Drop/Add from uploaded file
 2121: sub upfile_drop_add {
 2122:     my $r=shift;
 2123:     &Apache::loncommon::load_tmp_file($r);
 2124:     my @studentdata=&Apache::loncommon::upfile_record_sep();
 2125:     if($env{'form.noFirstLine'}){shift(@studentdata);}
 2126:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 2127:     my $cid = $env{'request.course.id'};
 2128:     my %fields=();
 2129:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 2130:         if ($env{'form.upfile_associate'} eq 'reverse') {
 2131:             if ($env{'form.f'.$i} ne 'none') {
 2132:                 $fields{$keyfields[$i]}=$env{'form.f'.$i};
 2133:             }
 2134:         } else {
 2135:             $fields{$env{'form.f'.$i}}=$keyfields[$i];
 2136:         }
 2137:     }
 2138:     #
 2139:     # Store the field choices away
 2140:     foreach my $field (qw/username names 
 2141:                        fname mname lname gen id sec ipwd email/) {
 2142:         $env{'form.'.$field.'_choice'}=$fields{$field};
 2143:     }
 2144:     &Apache::loncommon::store_course_settings('enrollment_upload',
 2145:                                               { 'username_choice' => 'scalar',
 2146:                                                 'names_choice' => 'scalar',
 2147:                                                 'fname_choice' => 'scalar',
 2148:                                                 'mname_choice' => 'scalar',
 2149:                                                 'lname_choice' => 'scalar',
 2150:                                                 'gen_choice' => 'scalar',
 2151:                                                 'id_choice' => 'scalar',
 2152:                                                 'sec_choice' => 'scalar',
 2153:                                                 'ipwd_choice' => 'scalar',
 2154:                                                 'email_choice' => 'scalar' });
 2155: 
 2156:     #
 2157:     my ($startdate,$enddate) = &get_dates_from_form();
 2158:     if ($env{'form.makedatesdefault'}) {
 2159:         $r->print(&make_dates_default($startdate,$enddate));
 2160:     }
 2161:     # Determine domain and desired host (home server)
 2162:     my $domain=$env{'form.lcdomain'};
 2163:     my $desiredhost = $env{'form.lcserver'};
 2164:     if (lc($desiredhost) eq 'default') {
 2165:         $desiredhost = undef;
 2166:     } else {
 2167:         my %home_servers = &Apache::loncommon::get_library_servers($domain);
 2168:         if (! exists($home_servers{$desiredhost})) {
 2169:             $r->print('<font color="#ff0000">'.&mt('Error').'</font>'.
 2170:                       &mt('Invalid home server specified'));
 2171:             $r->print(&Apache::loncommon::end_page());
 2172:             return;
 2173:         }
 2174:     }
 2175:     # Determine authentication mechanism
 2176:     my $amode  = '';
 2177:     my $genpwd = '';
 2178:     if ($env{'form.login'} eq 'krb') {
 2179:         $amode='krb';
 2180: 	$amode.=$env{'form.krbver'};
 2181:         $genpwd=$env{'form.krbarg'};
 2182:     } elsif ($env{'form.login'} eq 'int') {
 2183:         $amode='internal';
 2184:         if ((defined($env{'form.intarg'})) && ($env{'form.intarg'})) {
 2185:             $genpwd=$env{'form.intarg'};
 2186:         }
 2187:     } elsif ($env{'form.login'} eq 'loc') {
 2188:         $amode='localauth';
 2189:         if ((defined($env{'form.locarg'})) && ($env{'form.locarg'})) {
 2190:             $genpwd=$env{'form.locarg'};
 2191:         }
 2192:     }
 2193:     if ($amode =~ /^krb/) {
 2194:         if (! defined($genpwd) || $genpwd eq '') {
 2195:             $r->print('<font color="red" size="+1">'.
 2196:                       &mt('Unable to enroll students').'</font>  '.
 2197:                       &mt('No Kerberos domain was specified.').'</p>');
 2198:             $amode = ''; # This causes the loop below to be skipped
 2199:         }
 2200:     }
 2201:     if ( $domain eq &clean_domain($domain)
 2202: 	&& ($amode ne '')) {
 2203:         #######################################
 2204:         ##         Enroll Students           ##
 2205:         #######################################
 2206:         $r->print('<h3>'.&mt('Enrolling Students')."</h3>\n<p>\n");
 2207:         my $count=0;
 2208:         my $flushc=0;
 2209:         my %student=();
 2210:         # Get information about course groups
 2211:         my %curr_groups = &Apache::longroup::coursegroups();
 2212:         # Get new classlist
 2213:         foreach (@studentdata) {
 2214:             my %entries=&Apache::loncommon::record_sep($_);
 2215:             # Determine student name
 2216:             unless (($entries{$fields{'username'}} eq '') ||
 2217:                     (!defined($entries{$fields{'username'}}))) {
 2218:                 my ($fname, $mname, $lname,$gen) = ('','','','');
 2219:                 if (defined($fields{'names'})) {
 2220:                     ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
 2221:                                             /([^\,]+)\,\s*(\w+)\s*(.*)$/);
 2222:                 } else {
 2223:                     if (defined($fields{'fname'})) {
 2224:                         $fname=$entries{$fields{'fname'}};
 2225:                     }
 2226:                     if (defined($fields{'mname'})) {
 2227:                         $mname=$entries{$fields{'mname'}};
 2228:                     }
 2229:                     if (defined($fields{'lname'})) {
 2230:                         $lname=$entries{$fields{'lname'}};
 2231:                     }
 2232:                     if (defined($fields{'gen'})) {
 2233:                         $gen=$entries{$fields{'gen'}};
 2234:                     }
 2235:                 }
 2236:                 if ($entries{$fields{'username'}}
 2237: 		    ne &LONCAPA::clean_username($entries{$fields{'username'}})) {
 2238:                     $r->print('<br />'.
 2239:       &mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
 2240:           $entries{$fields{'username'}},$fname,$mname,$lname,$gen).
 2241:                               '</b>');
 2242:                 } else {
 2243:                     # determine section number
 2244:                     my $sec='';
 2245:                     my $username=$entries{$fields{'username'}};
 2246:                     if (defined($fields{'sec'})) {
 2247:                         if (defined($entries{$fields{'sec'}})) {
 2248:                             $sec=$entries{$fields{'sec'}};
 2249:                         }
 2250:                     }
 2251:                     # remove non alphanumeric values from section
 2252:                     $sec =~ s/\W//g;
 2253:                     if ($sec eq "none" || $sec eq 'all') {
 2254:                         $r->print('<br />'.
 2255:       &mt('<b>[_1]</b>: Unable to enroll: section name "[_2]" for user [_3] [_4] [_5] [_6] is a reserved word.',
 2256:                         $username,$sec,$fname,$mname,$lname,$gen));
 2257:                         next;
 2258:                     } elsif (($sec ne '') && (exists($curr_groups{$sec}))) {
 2259:                         $r->print('<br />'.
 2260:       &mt('<b>[_1]</b>: Unable to enroll: section name "[_2]" for user [_3] [_4] [_5] [_6] is a course group. Section names and group names must be distinct.',
 2261:                         $username,$sec,$fname,$mname,$lname,$gen));
 2262:                         next;
 2263:                     }
 2264:                     # determine student id number
 2265:                     my $id='';
 2266:                     if (defined($fields{'id'})) {
 2267:                         if (defined($entries{$fields{'id'}})) {
 2268:                             $id=$entries{$fields{'id'}};
 2269:                         }
 2270:                         $id=~tr/A-Z/a-z/;
 2271:                     }
 2272:                     # determine email address
 2273:                     my $email='';
 2274:                     if (defined($fields{'email'})) {
 2275:                         if (defined($entries{$fields{'email'}})) {
 2276:                             $email=$entries{$fields{'email'}};
 2277:                             unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
 2278:                         }
 2279:                     }
 2280:                     # determine student password
 2281:                     my $password='';
 2282:                     if ($genpwd) { 
 2283:                         $password=$genpwd; 
 2284:                     } else {
 2285:                         if (defined($fields{'ipwd'})) {
 2286:                             if ($entries{$fields{'ipwd'}}) {
 2287:                                 $password=$entries{$fields{'ipwd'}};
 2288:                             }
 2289:                         }
 2290:                     }
 2291:                     # Clean up whitespace
 2292:                     foreach (\$domain,\$username,\$id,\$fname,\$mname,
 2293:                              \$lname,\$gen,\$sec) {
 2294:                         $$_ =~ s/(\s+$|^\s+)//g;
 2295:                     }
 2296:                     if ($password || $env{'form.login'} eq 'loc') {
 2297:                         &modifystudent($domain,$username,$cid,$sec,
 2298:                                        $desiredhost);
 2299:                         my $reply=&Apache::lonnet::modifystudent
 2300:                             ($domain,$username,$id,$amode,$password,
 2301:                              $fname,$mname,$lname,$gen,$sec,$enddate,
 2302:                              $startdate,$env{'form.forceid'},$desiredhost,
 2303:                              $email);
 2304:                         if ($reply ne 'ok') {
 2305:                             $reply =~ s/^error://;
 2306:                             $r->print('<br />'.
 2307:                 &mt('<b>[_1]</b>:  Unable to enroll: [_2]',$username,$reply));
 2308:          		} else {
 2309:                             $count++; $flushc++;
 2310:                             $student{$username}=1;
 2311:                             $r->print('. ');
 2312:                             if ($flushc>15) {
 2313: 				$r->rflush;
 2314:                                 $flushc=0;
 2315:                             }
 2316:                         }
 2317:                     } else {
 2318:                         $r->print('<br />'.
 2319:       &mt('<b>[_1]</b>: Unable to enroll.  No password specified.',$username)
 2320:                                   );
 2321:                     }
 2322:                 }
 2323:             }
 2324:         } # end of foreach (@studentdata)
 2325:         $r->print("</p>\n<p>\n".&mt('Processed [_1] student(s).',$count).
 2326:                   "</p>\n");
 2327:         $r->print("<p>\n".
 2328:                   &mt('If active, the new role will be available when the '.
 2329:                   'students next log in to LON-CAPA.')."</p>\n");
 2330:         #####################################
 2331:         #           Drop students           #
 2332:         #####################################
 2333:         if ($env{'form.fullup'} eq 'yes') {
 2334:             $r->print('<h3>'.&mt('Dropping Students')."</h3>\n");
 2335:             #  Get current classlist
 2336:             my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
 2337:             if (! defined($classlist)) {
 2338:                 $r->print(&mt('There are no students currently enrolled.').
 2339:                           "\n");
 2340:             } else {
 2341:                 # Remove the students we just added from the list of students.
 2342:                 foreach (@studentdata) {
 2343:                     my %entries=&Apache::loncommon::record_sep($_);
 2344:                     unless (($entries{$fields{'username'}} eq '') ||
 2345:                             (!defined($entries{$fields{'username'}}))) {
 2346:                         delete($classlist->{$entries{$fields{'username'}}.
 2347:                                                 ':'.$domain});
 2348:                     }
 2349:                 }
 2350:                 # Print out list of dropped students.
 2351:                 &show_drop_list($r,$classlist,$keylist,'nosort');
 2352:             }
 2353:         }
 2354:     } # end of unless
 2355: }
 2356: 
 2357: # ================================================================== Phase four
 2358: sub drop_student_list {
 2359:     my $r=shift;
 2360:     my $count=0;
 2361:     my @droplist = &Apache::loncommon::get_env_multiple('form.droplist');
 2362:     foreach (@droplist) {
 2363:         my ($uname,$udom)=split(/\:/,$_);
 2364:         # drop student
 2365:         my $result = &modifystudent($udom,$uname,$env{'request.course.id'});
 2366:         if ($result eq 'ok' || $result eq 'ok:') {
 2367:             $r->print(&mt('Dropped [_1]',$uname.'@'.$udom).'<br>');
 2368:             $count++;
 2369:         } else {
 2370:             $r->print(
 2371:           &mt('Error dropping [_1]:[_2]',$uname.'@'.$udom,$result).
 2372:                       '<br />');
 2373:         }
 2374:     }
 2375:     $r->print('<p><b>'.&mt('Dropped [_1] student(s).',$count).'</b></p>');
 2376:     $r->print('<p>'.&mt('Re-enrollment will re-activate data.')) if ($count);
 2377: }
 2378: 
 2379: sub section_check_js {
 2380:     my $groupslist;
 2381:     my %curr_groups = &Apache::longroup::coursegroups();
 2382:     if (%curr_groups) {
 2383:         $groupslist = join('","',sort(keys(%curr_groups)));
 2384:     }
 2385:     return <<"END";
 2386: function validate(caller) {
 2387:     var groups = new Array("$groupslist");
 2388:     var secname = caller.value;
 2389:     if ((secname == 'all') || (secname == 'none')) {
 2390:         alert("'"+secname+"' may not be used as the name for a section, as it is a reserved word.\\nPlease choose a different section name.");
 2391:         return 'error';
 2392:     }
 2393:     if (secname != '') {
 2394:         for (var k=0; k<groups.length; k++) {
 2395:             if (secname == groups[k]) {
 2396:                 alert("'"+secname+"' may not be used as the name for a section, as it is the name of a course group.\\nSection names and group names must be distinct. Please choose a different section name.");
 2397:                 return 'error';
 2398:             }
 2399:         }
 2400:     }
 2401:     return 'ok';
 2402: }
 2403: END
 2404: }
 2405: 
 2406: ###################################################################
 2407: ###################################################################
 2408: 
 2409: =pod
 2410: 
 2411: =item &handler
 2412: 
 2413: The typical handler you see in all these modules.  Takes $r, the
 2414: http request, as an argument.  
 2415: 
 2416: The response to the request is governed by two form variables
 2417: 
 2418:  form.action      form.state     response
 2419:  ---------------------------------------------------
 2420:  undefined        undefined      print main menu
 2421:  upload           undefined      print courselist upload menu
 2422:  upload           got_file       deal with uploaded file,
 2423:                                  print the upload managing menu
 2424:  upload           enrolling      enroll students based on upload
 2425:  drop             undefined      print the classlist ready to drop
 2426:  drop             done           drop the selected students
 2427:  enrollstudent    undefined      print student username domain form
 2428:  enrollstudent    gotusername    print single student enroll menu
 2429:  enrollstudent    enrolling      enroll student
 2430:  classlist        undefined      print html classlist
 2431:  classlist        csv            print csv classlist
 2432:  modifystudent    undefined      print classlist to select student to modify
 2433:  modifystudent    selected       print modify student menu
 2434:  modifystudent    done           make modifications to student record
 2435: 
 2436: =cut
 2437: 
 2438: ###################################################################
 2439: ###################################################################
 2440: sub handler {
 2441:     my $r=shift;
 2442:     if ($r->header_only) {
 2443:         &Apache::loncommon::content_type($r,'text/html');
 2444:         $r->send_http_header;
 2445:         return OK;
 2446:     }
 2447:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2448:                                             ['action','state']);
 2449: 
 2450:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 2451:     &Apache::lonhtmlcommon::add_breadcrumb
 2452:         ({href=>"/adm/dropadd",
 2453:           text=>"Enrollment Manager",
 2454:           faq=>9,bug=>'Instructor Interface',});
 2455:     #  Needs to be in a course
 2456:     if (! ($env{'request.course.fn'})) {
 2457:         # Not in a course
 2458:         $env{'user.error.msg'}=
 2459:             "/adm/dropadd:cst:0:0:Cannot manage or view course groups, ".
 2460:                                   "or drop or add students";
 2461:         return HTTP_NOT_ACCEPTABLE; 
 2462:     }
 2463:     #
 2464:     my $view_permission = 
 2465:         &Apache::lonnet::allowed('vcl',$env{'request.course.id'});
 2466:     my $enrl_permission = 
 2467:         &Apache::lonnet::allowed('cst',$env{'request.course.id'});
 2468: 
 2469:     my $grp_view_permission =
 2470:         &Apache::lonnet::allowed('vcg',$env{'request.course.id'});
 2471:     my $grp_manage_permission =
 2472:         &Apache::lonnet::allowed('mdg',$env{'request.course.id'});
 2473: 
 2474: 
 2475:     if (! $grp_view_permission && ! $grp_manage_permission && 
 2476:                                   ! $view_permission && ! $enrl_permission) {
 2477:         $env{'user.error.msg'}=
 2478:      "/adm/coursegroups:cst:0:0:Cannot manage or view course groups, ".
 2479:                                  "or drop or add students";
 2480:         return HTTP_NOT_ACCEPTABLE;
 2481:     }
 2482: 
 2483:     #
 2484:     # Only output the header information if they did not request csv format
 2485:     #
 2486:     # Start page
 2487:     &Apache::loncommon::content_type($r,'text/html');
 2488:     $r->send_http_header;
 2489:     $r->print(&header());
 2490:     #
 2491:     # Main switch on form.action and form.state, as appropriate
 2492:     if (! exists($env{'form.action'})) {
 2493:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
 2494:         &print_main_menu($r,$enrl_permission,$view_permission,$grp_manage_permission,
 2495:                          $grp_view_permission);
 2496:     } elsif ($env{'form.action'} eq 'upload' && $enrl_permission) {
 2497:         &Apache::lonhtmlcommon::add_breadcrumb
 2498:             ({href=>'/adm/dropadd?action=upload&state=',
 2499:               text=>"Upload Classlist"});
 2500:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Upload Classlist',
 2501: 						      'Course_Create_Class_List'));
 2502:         if (! exists($env{'form.state'})) {
 2503:             &print_first_courselist_upload_form($r);            
 2504:         } elsif ($env{'form.state'} eq 'got_file') {
 2505:             &print_upload_manager_form($r);
 2506:         } elsif ($env{'form.state'} eq 'enrolling') {
 2507:             if ($env{'form.datatoken'}) {
 2508:                 &upfile_drop_add($r);
 2509:             } else {
 2510:                 # Hmmm, this is an error
 2511:             }
 2512:         } else {
 2513:             &print_first_courselist_upload_form($r);            
 2514:         }
 2515:     } elsif ($env{'form.action'} eq 'drop' && $enrl_permission) {
 2516:         &Apache::lonhtmlcommon::add_breadcrumb
 2517:             ({href=>'/adm/dropadd?action=drop',
 2518:               text=>"Drop Students"});
 2519:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Drop Students',
 2520: 						      'Course_Drop_Student'));
 2521:         if (! exists($env{'form.state'})) {
 2522:             &print_drop_menu($r);
 2523:         } elsif ($env{'form.state'} eq 'done') {
 2524:             &drop_student_list($r);
 2525:         } else {
 2526:             &print_drop_menu($r);
 2527:         }
 2528:     } elsif ($env{'form.action'} eq 'enrollstudent' && $enrl_permission) {
 2529:         &Apache::lonhtmlcommon::add_breadcrumb
 2530:             ({href=>'/adm/dropadd?action=enrollstudent',
 2531:               text=>"Enroll Student"});
 2532:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 2533: 						      'Course_Add_Student'));
 2534:         if (! exists($env{'form.state'})) {
 2535:             &get_student_username_domain_form($r);
 2536:         } elsif ($env{'form.state'} eq 'gotusername') {
 2537:             &print_enroll_single_student_form($r);
 2538:         } elsif ($env{'form.state'} eq 'enrolling') {
 2539:             &enroll_single_student($r);
 2540:         } else {
 2541:             &get_student_username_domain_form($r);
 2542:         }
 2543:     } elsif ($env{'form.action'} eq 'classlist' && $view_permission) {
 2544:         &Apache::lonhtmlcommon::add_breadcrumb
 2545:             ({href=>'/adm/dropadd?action=classlist',
 2546:               text=>"View Classlist"});
 2547:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('View Classlist',
 2548: 						      'Course_View_Class_List'));
 2549:         if (! exists($env{'form.state'})) {
 2550:             &print_html_classlist($r,undef);
 2551:         } elsif ($env{'form.state'} eq 'csv') {
 2552:             &print_html_classlist($r,'csv');
 2553:         } elsif ($env{'form.state'} eq 'excel') {
 2554:             &print_html_classlist($r,'excel');
 2555:         } else {
 2556:             &print_html_classlist($r,undef);
 2557:         }
 2558:     } elsif ($env{'form.action'} eq 'modifystudent' && $enrl_permission) {
 2559:         &Apache::lonhtmlcommon::add_breadcrumb
 2560:             ({href=>'/adm/dropadd?action=modifystudent',
 2561:               text=>"Modify Student Data"});
 2562:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Modify Student Data',
 2563: 						      'Course_Modify_Student_Data'));
 2564:         if (! exists($env{'form.state'})) {
 2565:             &print_html_classlist($r);
 2566:         } elsif ($env{'form.state'} eq 'selected') {
 2567:             &print_modify_student_form($r);
 2568:         } elsif ($env{'form.state'} eq 'done') {
 2569:             &modify_single_student($r);
 2570:         } else {
 2571:             &print_html_classlist($r);
 2572:         }        
 2573:     } else {
 2574:         # We should not end up here, but I guess it is possible
 2575:         &Apache::lonnet::logthis("Undetermined state in londropadd.pm.  ".
 2576:                                  "form.action = ".$env{'form.action'}.
 2577:                                  "Someone should fix this.");
 2578:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
 2579:         &print_main_menu($r,$enrl_permission,$view_permission);
 2580:     }
 2581:     #
 2582:     # Finish up
 2583:     $r->print('</form>'.&Apache::loncommon::end_page());
 2584:     return OK;
 2585: }
 2586: 
 2587: ###################################################################
 2588: ###################################################################
 2589: 
 2590: 1;
 2591: __END__
 2592: 
 2593: 

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