File:  [LON-CAPA] / loncom / interface / Attic / londropadd.pm
Revision 1.179: download - view: text, annotated - select for diffs
Tue Apr 24 21:05:15 2012 UTC (12 years, 2 months ago) by droeschl
Branches: MAIN
CVS tags: HEAD
Removed londropadd::modifystudent. It is not used anymore and has been
superseded by lonuserutils::modifystudent.

    1: # The LearningOnline Network with CAPA
    2: # Handler to drop and add students in courses 
    3: #
    4: # $Id: londropadd.pm,v 1.179 2012/04/24 21:05:15 droeschl 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: =head1 NAME
   31: 
   32: Apache::londropadd.pm
   33: 
   34: =head1 SYNOPSIS
   35: 
   36: drop & add students
   37: 
   38: This is part of the LearningOnline Network with CAPA project
   39: described at http://www.lon-capa.org.
   40: 
   41: =head1 SUBROUTINES
   42: 
   43: =over
   44: 
   45: =cut
   46: 
   47: package Apache::londropadd;
   48: 
   49: use strict;
   50: use Apache::lonnet;
   51: use Apache::loncommon();
   52: use Apache::lonhtmlcommon();
   53: use Apache::Constants qw(:common :http REDIRECT);
   54: use Spreadsheet::WriteExcel;
   55: use Apache::lonstathelpers();
   56: use Apache::lonlocal;
   57: use Apache::longroup;
   58: use LONCAPA();
   59: 
   60: sub header {
   61:     my ($jscript,$loaditems) = @_;
   62:     my $start_page;
   63:     if (ref($loaditems) eq 'HASH') {
   64:         $start_page=&Apache::loncommon::start_page('Enrollment Manager',$jscript,{'add_entries' => $loaditems,});
   65:     } else {
   66:         $start_page=&Apache::loncommon::start_page('Enrollment Manager',$jscript);
   67:     }
   68:     return(<<ENDHEAD);
   69: $start_page
   70: <form method="post" enctype="multipart/form-data"  
   71:       action="/adm/dropadd" name="studentform">
   72: ENDHEAD
   73: }
   74: 
   75: =pod
   76: 
   77: =item domain_form()
   78:     
   79:     build a domain and server selection form
   80: 
   81: =cut
   82: 
   83: sub domain_form {
   84:     my ($defdom) = @_;
   85:     # Set up domain and server selection forms
   86:     #
   87:     # Get the domains
   88:     my @domains = &Apache::lonnet::all_domains();
   89:     # build up the menu information to be passed to 
   90:     # &Apache::loncommon::linked_select_forms
   91:     my %select_menus;
   92:     foreach my $dom (@domains) {
   93:         # set up the text for this domain
   94:         $select_menus{$dom}->{'text'}= $dom;
   95:         # we want a choice of 'default' as the default in the second menu
   96:         $select_menus{$dom}->{'default'}= 'default';
   97:         $select_menus{$dom}->{'select2'}->{'default'} = 'default';
   98:         # Now build up the other items in the second menu
   99:         my %servers = &Apache::lonnet::get_servers($dom,'library');
  100:         foreach my $server (keys(%servers)) {
  101:             $select_menus{$dom}->{'select2'}->{$server} 
  102:                                             = "$server $servers{$server}";
  103:         }
  104:     }
  105:     my $result  = &Apache::loncommon::linked_select_forms
  106:         ('studentform',' with home server ',$defdom,
  107:          'lcdomain','lcserver',\%select_menus);
  108:     return $result;
  109: }
  110: 
  111: =pod
  112: 
  113: =item print_main_menu()
  114: 
  115:     Menu Phase One
  116: 
  117: =cut
  118: 
  119: sub print_main_menu {
  120:     my ($r,$permission)=@_;
  121:     #
  122:     my $cid =$env{'request.course.id'};
  123:     my $cdom=$env{'course.'.$cid.'.domain'};
  124:     my $cnum=$env{'course.'.$cid.'.num'};
  125:     my @menu = 
  126:         ( 
  127:           { text => 'Upload a class list', 
  128:             help => 'Course_Create_Class_List',
  129:             action => 'upload',
  130:             permission => $permission->{'enrl'},
  131:             },
  132:           { text => 'Enroll a single student', 
  133:             help => 'Course_Add_Student',
  134:             action => 'enrollstudent',
  135:             permission => $permission->{'enrl'},
  136:             },
  137:           { text => 'Modify student data', 
  138:             help => 'Course_Modify_Student_Data',
  139:             action => 'modifystudent',
  140:             permission => $permission->{'enrl'},
  141:             },
  142:           { text => 'View Class List', 
  143:             help => 'Course_View_Class_List',
  144:             action => 'classlist',
  145:             permission => $permission->{'view'},
  146:             },
  147:           { text => 'Drop Students', 
  148:             help => 'Course_Drop_Student',
  149:             action => 'drop',
  150:             permission => $permission->{'enrl'},
  151:             },
  152:           { text => 'Automated Enrollment Manager', 
  153:             permission => (&Apache::lonnet::auto_run($cnum,$cdom) 
  154: 			   && $permission->{'enrl'}),
  155:             url  => '/adm/populate',
  156:             },
  157:           { text => 'Create a new group',
  158:             help => 'Course_Create_Group',
  159:             permission => $permission->{'grp_manage'},
  160:             url => '/adm/coursegroups?refpage=enrl&amp;action=create',
  161:             },
  162:           { text => 'Modify an existing group',
  163:             help => 'Course_Modify_Group',
  164:             permission => $permission->{'grp_manage'},
  165:             url => '/adm/coursegroups?refpage=enrl&amp;action=modify',
  166:             },
  167:           { text => 'Delete an existing group',
  168:             help => 'Course_Delete_Group',
  169:             permission => $permission->{'grp_manage'},
  170:             url => '/adm/coursegroups?refpage=enrl&amp;action=delete',
  171:             },
  172:           { text => 'Re-enable a deleted group',
  173:             help => 'Course_Reenable_Group',
  174:             permission => $permission->{'grp_manage'},
  175:             url => '/adm/coursegroups?refpage=enrl&amp;action=reenable',
  176:             },
  177:           { text => 'Enter an existing group',
  178:             help => 'Course_Display_Group',
  179:             permission => $permission->{'grp_view'},
  180:             url => '/adm/coursegroups?refpage=enrl&amp;action=view',
  181:             },
  182:           );
  183:     my $menu_html = '';
  184:     foreach my $menu_item (@menu) {
  185:         next if (! $menu_item->{'permission'});
  186:         $menu_html.='<p>';
  187:         $menu_html.='<font size="+1">';
  188:         if (exists($menu_item->{'url'})) {
  189:             $menu_html.=qq{<a href="$menu_item->{'url'}">};
  190:         } else {
  191:             $menu_html.=
  192:                 qq{<a href="/adm/dropadd?action=$menu_item->{'action'}">};
  193:         }
  194:         $menu_html.= &mt($menu_item->{'text'}).'</a></font>';
  195:         if (exists($menu_item->{'help'})) {
  196:             $menu_html.=
  197:                 &Apache::loncommon::help_open_topic($menu_item->{'help'});
  198:         }
  199:         $menu_html.='</p>'.$/;
  200:     }
  201:     $r->print($menu_html);
  202:     return;
  203: }
  204: 
  205: 
  206: 
  207: sub hidden_input {
  208:     my ($name,$value) = @_;
  209:     return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'."\n";
  210: }
  211: 
  212: 
  213: 
  214: sub print_upload_manager_header {
  215:     my ($r,$datatoken,$distotal,$krbdefdom)=@_;
  216:     my $javascript;
  217:     #
  218:     if (! exists($env{'form.upfile_associate'})) {
  219:         $env{'form.upfile_associate'} = 'forward';
  220:     }
  221:     if ($env{'form.associate'} eq 'Reverse Association') {
  222:         if ( $env{'form.upfile_associate'} ne 'reverse' ) {
  223:             $env{'form.upfile_associate'} = 'reverse';
  224:         } else {
  225:             $env{'form.upfile_associate'} = 'forward';
  226:         }
  227:     }
  228:     if ($env{'form.upfile_associate'} eq 'reverse') {
  229: 	$javascript=&upload_manager_javascript_reverse_associate();
  230:     } else {
  231: 	$javascript=&upload_manager_javascript_forward_associate();
  232:     }
  233:     #
  234:     # Deal with restored settings
  235:     my $password_choice = '';
  236:     if (exists($env{'form.ipwd_choice'}) &&
  237:         $env{'form.ipwd_choice'} ne '') {
  238:         # If a column was specified for password, assume it is for an
  239:         # internal password.  This is a bug waiting to be filed (could be
  240:         # local or krb auth instead of internal) but I do not have the 
  241:         # time to mess around with this now.
  242:         $password_choice = 'int';        
  243:     }
  244:     #
  245:     my $javascript_validations = 
  246:         &javascript_validations('auth',$krbdefdom,$password_choice,undef,
  247:                                 $env{'request.role.domain'});
  248:     my $checked=(($env{'form.noFirstLine'})?' checked="checked" ':'');
  249:     $r->print('<h3>'.&mt('Uploading Class List')."</h3>\n".
  250:               "<hr>\n".
  251:               '<h3>'.&mt('Identify fields')."</h3>\n");
  252:     $r->print("<p>\n".
  253:               &mt('Total number of records found in file: [_1].',$distotal).
  254:               "\n".
  255:               "</p><hr>\n");
  256:     $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");
  257:     $r->print(&hidden_input('action','upload').
  258:               &hidden_input('state','got_file').
  259:               &hidden_input('associate','').
  260:               &hidden_input('datatoken',$datatoken).
  261:               &hidden_input('fileupload',$env{'form.fileupload'}).
  262:               &hidden_input('upfiletype',$env{'form.upfiletype'}).
  263:               &hidden_input('upfile_associate',$env{'form.upfile_associate'}));
  264:     $r->print('<input type="button" value="Reverse Association" '.
  265:               'name="'.&mt('Reverse Association').'" '.
  266:               'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
  267:     $r->print('<label><input type="checkbox" name="noFirstLine"'.$checked.'/>'.
  268:               &mt('Ignore First Line').'</label>');
  269:     $r->print("<hr />\n".
  270:               '<script type="text/javascript" language="Javascript">'."\n".
  271:               $javascript."\n".$javascript_validations.'</script>');
  272: }
  273: 
  274: 
  275: 
  276: 
  277: 
  278: sub javascript_validations {
  279:     my ($mode,$krbdefdom,$curr_authtype,$curr_authfield,$domain)=@_;
  280:     my $authheader;
  281:     if ($mode eq 'auth') {
  282:         my %param = ( formname => 'studentform',
  283:                       kerb_def_dom => $krbdefdom,
  284:                       curr_authtype => $curr_authtype);
  285:         $authheader = &Apache::loncommon::authform_header(%param);
  286:     } elsif ($mode eq 'createcourse') {
  287:         my %param = ( formname => 'ccrs',
  288:                       kerb_def_dom => $krbdefdom,
  289:                       curr_authtype => $curr_authtype );
  290:         $authheader = &Apache::loncommon::authform_header(%param);
  291:     } elsif ($mode eq 'modifycourse') {
  292:         my %param = ( formname => 'cmod',
  293:                   kerb_def_dom => $krbdefdom,
  294:                   mode => 'modifycourse',
  295:                   curr_authtype => $curr_authtype,
  296:                   curr_autharg => $curr_authfield );
  297:         $authheader = &Apache::loncommon::authform_header(%param);
  298:     }
  299: 
  300:     
  301:     my %alert = &Apache::lonlocal::texthash
  302:         (username => 'You need to specify the username field.',
  303:          authen   => 'You must choose an authentication type.',
  304:          krb      => 'You need to specify the Kerberos domain.',
  305:          ipass    => 'You need to specify the initial password.',
  306:          name     => 'The optional name field was not specified.',
  307:          snum     => 'The optional student number field was not specified.',
  308:          section  => 'The optional section field was not specified.', 
  309:          email    => 'The optional e-mail address field was not specified.',
  310:          continue => 'Continue enrollment?',
  311:          );
  312:     
  313: #    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
  314:     my $function_name =(<<END);
  315: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
  316: END
  317:     my ($authnum,%can_assign) =  &Apache::loncommon::get_assignable_auth($domain);
  318:     my $auth_checks;
  319:     if ($mode eq 'createcourse') {
  320:         $auth_checks .= (<<END);
  321:     if (vf.autoadds[0].checked == true) {
  322:         if (current.radiovalue == null || current.radiovalue == 'nochange') {
  323:             alert('$alert{'authen'}');
  324:             return;
  325:         }
  326:     }
  327: END
  328:     } else {
  329:         $auth_checks .= (<<END);
  330:     var foundatype=0;
  331:     if (founduname==0) {
  332:         alert('$alert{'username'}');
  333:         return;
  334:     }
  335: 
  336: END
  337:         if ($authnum > 1) {
  338:             $auth_checks .= (<<END);
  339:     // alert('current.radiovalue = '+current.radiovalue);
  340:     if (current.radiovalue == null || current.radiovalue == '' || current.radiovalue == 'nochange') {
  341:         // They did not check any of the login radiobuttons.
  342:         alert('$alert{'authen'}');
  343:         return;
  344:     }
  345: END
  346:         }
  347:     }
  348:     if ($mode eq 'createcourse') {
  349:         $auth_checks .= "
  350:     if ( (vf.autoadds[0].checked == true) &&
  351:          (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') ) {
  352: ";
  353:     } elsif ($mode eq 'modifycourse') {
  354:         $auth_checks .= " 
  355:     if (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') {
  356: ";
  357:     }
  358:     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
  359:         $auth_checks .= (<<END);
  360:         var alertmsg = '';
  361:         switch (current.radiovalue) {
  362:             case 'krb':
  363:                 alertmsg = '$alert{'krb'}';
  364:                 break;
  365:             default:
  366:                 alertmsg = '';
  367:         }
  368:         if (alertmsg != '') {
  369:             alert(alertmsg);
  370:             return;
  371:         }
  372:     }
  373: END
  374:     } else {
  375:         $auth_checks .= (<<END);
  376:     foundatype=1;
  377:     if (current.argfield == null || current.argfield == '') {
  378:         var alertmsg = '';
  379:         switch (current.value) {
  380:             case 'krb': 
  381:                 alertmsg = '$alert{'krb'}';
  382:                 break;
  383:             case 'loc':
  384:             case 'fsys':
  385:                 alertmsg = '$alert{'ipass'}';
  386:                 break;
  387:             case 'fsys':
  388:                 alertmsg = '';
  389:                 break;
  390:             default: 
  391:                 alertmsg = '';
  392:         }
  393:         if (alertmsg != '') {
  394:             alert(alertmsg);
  395:             return;
  396:         }
  397:     }
  398: END
  399:     }
  400:     my $section_checks;
  401:     my $optional_checks = '';
  402:     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
  403:         $optional_checks = (<<END);
  404:     vf.submit();
  405: }
  406: END
  407:     } else {
  408:         $section_checks = &Apache::lonuserutils::section_check_js();
  409:         $optional_checks = (<<END);
  410:     var message='';
  411:     if (foundname==0) { 
  412:         message='$alert{'name'}';
  413:     }
  414:     if (foundid==0) { 
  415:         if (message!='') { 
  416:             message+='\\n'; 
  417:         }
  418:         message+='$alert{'snum'}';
  419:     }
  420:     if (foundsec==0) {
  421:         if (message!='') {
  422:             message+='\\n';
  423:         } 
  424:         message+='$alert{'section'}';
  425:     }
  426:     if (foundemail==0) {
  427:         if (message!='') {
  428:             message+='\\n';
  429:         }
  430:         message+='$alert{'email'}';
  431:     }
  432:     if (message!='') {
  433:         message+= '\\n$alert{'continue'}';
  434:         if (confirm(message)) {
  435:             vf.state.value='enrolling';
  436:             vf.submit();
  437:         }
  438:     } else {
  439:         vf.state.value='enrolling';
  440:         vf.submit();
  441:     }
  442: }
  443: END
  444:     }
  445:     my $result = $function_name;
  446:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
  447:         $result .= $auth_checks;
  448:     }
  449:     $result .= $optional_checks."\n".$section_checks;
  450:     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
  451:         $result .= $authheader;
  452:     }
  453:     return $result;
  454: }
  455: 
  456: 
  457: 
  458: 
  459: sub upload_manager_javascript_forward_associate {
  460:     return(<<ENDPICK);
  461: function verify(vf,sec_caller) {
  462:     var founduname=0;
  463:     var foundpwd=0;
  464:     var foundname=0;
  465:     var foundid=0;
  466:     var foundsec=0;
  467:     var foundemail=0;
  468:     var tw;
  469:     for (i=0;i<=vf.nfields.value;i++) {
  470:         tw=eval('vf.f'+i+'.selectedIndex');
  471:         if (tw==1) { founduname=1; }
  472:         if ((tw>=2) && (tw<=6)) { foundname=1; }
  473:         if (tw==7) { foundid=1; }
  474:         if (tw==8) { foundsec=1; }
  475:         if (tw==9) { foundpwd=1; }
  476:         if (tw==10) { foundemail=1; }
  477:     }
  478:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
  479: }
  480: 
  481: //
  482: // vf = this.form
  483: // tf = column number
  484: //
  485: // values of nw
  486: //
  487: // 0 = none
  488: // 1 = username
  489: // 2 = names (lastname, firstnames)
  490: // 3 = fname (firstname)
  491: // 4 = mname (middlename)
  492: // 5 = lname (lastname)
  493: // 6 = gen   (generation)
  494: // 7 = id
  495: // 8 = section
  496: // 9 = ipwd  (password)
  497: // 10 = email address
  498: 
  499: function flip(vf,tf) {
  500:    var nw=eval('vf.f'+tf+'.selectedIndex');
  501:    var i;
  502:    // make sure no other columns are labeled the same as this one
  503:    for (i=0;i<=vf.nfields.value;i++) {
  504:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
  505:           eval('vf.f'+i+'.selectedIndex=0;')
  506:       }
  507:    }
  508:    // If we set this to 'lastname, firstnames', clear out all the ones
  509:    // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
  510:    if (nw==2) {
  511:       for (i=0;i<=vf.nfields.value;i++) {
  512:          if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
  513:              (eval('vf.f'+i+'.selectedIndex')<=6)) {
  514:              eval('vf.f'+i+'.selectedIndex=0;')
  515:          }
  516:       }
  517:    }
  518:    // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
  519:    // clear out any that are set to 'lastname, firstnames' (2)
  520:    if ((nw>=3) && (nw<=6)) {
  521:       for (i=0;i<=vf.nfields.value;i++) {
  522:          if (eval('vf.f'+i+'.selectedIndex')==2) {
  523:              eval('vf.f'+i+'.selectedIndex=0;')
  524:          }
  525:       }
  526:    }
  527:    // If we set the password, make the password form below correspond to 
  528:    // the new value.
  529:    if (nw==9) {
  530:        changed_radio('int',document.studentform);
  531:        set_auth_radio_buttons('int',document.studentform);
  532:        vf.intarg.value='';
  533:        vf.krbarg.value='';
  534:        vf.locarg.value='';
  535:    }
  536: }
  537: 
  538: function clearpwd(vf) {
  539:     var i;
  540:     for (i=0;i<=vf.nfields.value;i++) {
  541:         if (eval('vf.f'+i+'.selectedIndex')==9) {
  542:             eval('vf.f'+i+'.selectedIndex=0;')
  543:         }
  544:     }
  545: }
  546: 
  547: ENDPICK
  548: }
  549: 
  550: 
  551: 
  552: 
  553: sub upload_manager_javascript_reverse_associate {
  554:     return(<<ENDPICK);
  555: function verify(vf,sec_caller) {
  556:     var founduname=0;
  557:     var foundpwd=0;
  558:     var foundname=0;
  559:     var foundid=0;
  560:     var foundsec=0;
  561:     var tw;
  562:     for (i=0;i<=vf.nfields.value;i++) {
  563:         tw=eval('vf.f'+i+'.selectedIndex');
  564:         if (i==0 && tw!=0) { founduname=1; }
  565:         if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
  566:         if (i==6 && tw!=0) { foundid=1; }
  567:         if (i==7 && tw!=0) { foundsec=1; }
  568:         if (i==8 && tw!=0) { foundpwd=1; }
  569:     }
  570:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
  571: }
  572: 
  573: function flip(vf,tf) {
  574:    var nw=eval('vf.f'+tf+'.selectedIndex');
  575:    var i;
  576:    // picked the all one one name field, reset the other name ones to blank
  577:    if (tf==1 && nw!=0) {
  578:       for (i=2;i<=5;i++) {
  579:          eval('vf.f'+i+'.selectedIndex=0;')
  580:       }
  581:    }
  582:    //picked one of the piecewise name fields, reset the all in
  583:    //one field to blank
  584:    if ((tf>=2) && (tf<=5) && (nw!=0)) {
  585:       eval('vf.f1.selectedIndex=0;')
  586:    }
  587:    // intial password specified, pick internal authentication
  588:    if (tf==8 && nw!=0) {
  589:        changed_radio('int',document.studentform);
  590:        set_auth_radio_buttons('int',document.studentform);
  591:        vf.krbarg.value='';
  592:        vf.intarg.value='';
  593:        vf.locarg.value='';
  594:    }
  595: }
  596: 
  597: function clearpwd(vf) {
  598:     var i;
  599:     if (eval('vf.f8.selectedIndex')!=0) {
  600:         eval('vf.f8.selectedIndex=0;')
  601:     }
  602: }
  603: ENDPICK
  604: }
  605: 
  606: 
  607: 
  608: 
  609: sub print_upload_manager_footer {
  610:     my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
  611: 
  612:     my ($krbdef,$krbdefdom) =
  613:         &Apache::loncommon::get_kerberos_defaults($defdom);
  614:     my %param = ( formname => 'document.studentform',
  615:                   kerb_def_dom => $krbdefdom,
  616:                   kerb_def_auth => $krbdef
  617:                   );
  618:     if (exists($env{'form.ipwd_choice'}) &&
  619:         defined($env{'form.ipwd_choice'}) &&
  620:         $env{'form.ipwd_choice'} ne '') {
  621:         $param{'curr_authtype'} = 'int';
  622:     }
  623:     my $krbform = &Apache::loncommon::authform_kerberos(%param);
  624:     my $intform = &Apache::loncommon::authform_internal(%param);
  625:     my $locform = &Apache::loncommon::authform_local(%param);
  626:     my $domform = &domain_form($defdom);
  627:     my $date_table = &date_setting_table();
  628:     my $Str = "</table>\n";
  629:     $Str .= &hidden_input('nfields',$i);
  630:     $Str .= &hidden_input('keyfields',$keyfields);
  631:     $Str .= '<h3>'.&mt('Login Type')."</h3>\n";
  632:     $Str .= "<p>\n".
  633:         &mt('Note: this will not take effect if the user already exists').
  634: 	&Apache::loncommon::help_open_topic('Auth_Options').
  635:         "</p><p>\n";
  636:     $Str .= $krbform."\n</p><p>\n".
  637:         $intform."\n</p><p>\n".
  638:         $locform."\n</p>\n";
  639:     $Str .= '<h3>'.&mt('LON-CAPA Domain for Students')."</h3>\n";
  640:     $Str .= "<p>\n".&mt('LON-CAPA domain: [_1]',$domform)."\n</p>\n";
  641:     $Str .= "<h3>".&mt('Starting and Ending Dates')."</h3>\n";
  642:     $Str .= "<p>\n".$date_table."</p>\n";
  643:     $Str .= "<h3>".&mt('Full Update')."</h3>\n";
  644:     $Str .= '<label><input type="checkbox" name="fullup" value="yes">'.
  645:         ' '.&mt('Full update (also print list of users not enrolled anymore)').
  646:         "</label></p>\n";
  647:     $Str .= "<h3>".&mt('Student Number')."</h3>\n";
  648:     $Str .= "<p>\n".'<label><input type="checkbox" name="forceid" value="yes">';
  649:     $Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
  650:                 'of Conflicting IDs (only do if you know what you are doing)').
  651:                 "</label>\n</p><p>\n";
  652:     $Str .= '<input type="button"'. 
  653:               'onClick="javascript:verify(this.form,this.form.csec)" '.
  654:         'value="Update Class List" />'."<br />\n";
  655:     $Str .= &mt('Note: for large courses, this operation may be time '.
  656:                 'consuming');
  657:     $r->print($Str);
  658:     return;
  659: }
  660: 
  661: 
  662: 
  663: 
  664: sub print_upload_manager_form {
  665:     my $r=shift;
  666: 
  667:     my $firstLine;
  668:     my $datatoken;
  669:     if (!$env{'form.datatoken'}) {
  670:         $datatoken=&Apache::loncommon::upfile_store($r);
  671:     } else {
  672:         $datatoken=$env{'form.datatoken'};
  673:         &Apache::loncommon::load_tmp_file($r);
  674:     }
  675:     my @records=&Apache::loncommon::upfile_record_sep();
  676:     if($env{'form.noFirstLine'}){
  677:         $firstLine=shift(@records);
  678:     }
  679:     my $total=$#records;
  680:     my $distotal=$total+1;
  681:     my $today=time;
  682:     my $halfyear=$today+15552000;
  683:     #
  684:     # Restore memorized settings
  685:     &Apache::loncommon::restore_course_settings
  686:         ('enrollment_upload',{ 'username_choice' => 'scalar', # column settings
  687:                                'names_choice' => 'scalar',
  688:                                'fname_choice' => 'scalar',
  689:                                'mname_choice' => 'scalar',
  690:                                'lname_choice' => 'scalar',
  691:                                'gen_choice' => 'scalar',
  692:                                'id_choice' => 'scalar',
  693:                                'sec_choice' => 'scalar',
  694:                                'ipwd_choice' => 'scalar',
  695:                                'email_choice' => 'scalar',
  696:                            });
  697:     #
  698:     # Determine kerberos parameters as appropriate
  699:     my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
  700:     my ($krbdef,$krbdefdom) =
  701:         &Apache::loncommon::get_kerberos_defaults($defdom);
  702:     #
  703:     &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
  704:     my $i;
  705:     my $keyfields;
  706:     if ($total>=0) {
  707:         my @field=
  708:             (['username',&mt('Username'),     $env{'form.username_choice'}],
  709:              ['names',&mt('Last Name, First Names'),$env{'form.names_choice'}],
  710:              ['fname',&mt('First Name'),      $env{'form.fname_choice'}],
  711:              ['mname',&mt('Middle Names/Initials'),$env{'form.mname_choice'}],
  712:              ['lname',&mt('Last Name'),       $env{'form.lname_choice'}],
  713:              ['gen',  &mt('Generation'),      $env{'form.gen_choice'}],
  714:              ['id',   &mt('ID/Student Number'),$env{'form.id_choice'}],
  715:              ['sec',  &mt('Section'),          $env{'form.sec_choice'}],
  716:              ['ipwd', &mt('Initial Password'),$env{'form.ipwd_choice'}],
  717:              ['email',&mt('E-mail Address'),   $env{'form.email_choice'}]);
  718: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
  719: 	    &Apache::loncommon::csv_print_samples($r,\@records);
  720: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,
  721:                                                           \@field);
  722: 	    foreach (@field) { 
  723:                 $keyfields.=$_->[0].','; 
  724:             }
  725: 	    chop($keyfields);
  726: 	} else {
  727: 	    unshift(@field,['none','']);
  728: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
  729:                                                             \@field);
  730: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
  731: 	    $keyfields=join(',',sort(keys(%sone)));
  732: 	}
  733:     }
  734:     &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
  735: }
  736: 
  737: 
  738: 
  739: 
  740: 
  741: sub enroll_single_student {
  742:     my ($r,$srcharray) = @_; 
  743:     # Remove non alphanumeric values from section
  744:     $env{'form.csec'}=~s/\W//g;
  745:     #
  746:     # We do the dates first because the action of making them the defaul
  747:     # in the course is entirely separate from the action of enrolling the
  748:     # student.  Also, a failure in setting the dates as default is not fatal
  749:     # to the process of enrolling / modifying a student.
  750:     my ($startdate,$enddate) = &Apache::lonuserutils::get_dates_from_form();
  751:     if ($env{'form.makedatesdefault'}) {
  752:         $r->print(&Apache::lonuserutils::make_dates_default($startdate,
  753:                                                             $enddate));
  754:     }
  755: 
  756:     $r->print('<h3>'.&mt('Enrolling Student').'</h3>');
  757:     $r->print('<p>'.&mt('Enrolling [_1] : [_2]',$env{'form.cuname'},
  758: 			$env{'form.lcdomain'}).'</p>');
  759:     if (($env{'form.cuname'})
  760: 	&& ($env{'form.cuname'} 
  761: 	    eq &LONCAPA::clean_username($env{'form.cuname'}))
  762: 	&& ($env{'form.lcdomain'})
  763: 	&& ($env{'form.lcdomain'}
  764: 	    eq &LONCAPA::clean_domain($env{'form.lcdomain'}))) {
  765:         # Deal with home server selection
  766:         my $domain=$env{'form.lcdomain'};
  767:         my $desiredhost = $env{'form.lcserver'};
  768:         if (lc($desiredhost) eq 'default') {
  769:             $desiredhost = undef;
  770:         } else {
  771:             my %home_servers =&Apache::lonnet::get_servers($domain,'library');
  772:             if (! exists($home_servers{$desiredhost})) {
  773:                 $r->print('<font color="#ff0000">'.&mt('Error').':</font>'.
  774:                           &mt('Invalid home server specified'));
  775:                 return;
  776:             }
  777:         }
  778:         $r->print(" ".&mt('with server')." $desiredhost :") if (defined($desiredhost));
  779:         # End of home server selection logic
  780: 	my $amode='';
  781:         my $genpwd='';
  782:         if ($env{'form.login'} eq 'krb') {
  783:            $amode='krb';
  784: 	   $amode.=$env{'form.krbver'};
  785:            $genpwd=$env{'form.krbarg'};
  786:         } elsif ($env{'form.login'} eq 'int') {
  787:            $amode='internal';
  788:            $genpwd=$env{'form.intarg'};
  789:         }  elsif ($env{'form.login'} eq 'loc') {
  790: 	    $amode='localauth';
  791: 	    $genpwd=$env{'form.locarg'};
  792: 	    if (!$genpwd) { $genpwd=" "; }
  793: 	}
  794:         my $home = &Apache::lonnet::homeserver($env{'form.cuname'},
  795:                                                    $env{'form.lcdomain'});
  796:         if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
  797:             # Clean out any old roles the student has in this class.
  798:             &Apache::lonuserutils::modifystudent($env{'form.lcdomain'},$env{'form.cuname'},
  799:                            $env{'request.course.id'},$env{'form.csec'},
  800:                             $desiredhost);
  801:             my $login_result = &Apache::lonnet::modifystudent
  802:                 ($env{'form.lcdomain'},$env{'form.cuname'},
  803:                  $env{'form.cstid'},$amode,$genpwd,
  804:                  $env{'form.cfirst'},$env{'form.cmiddle'},
  805:                  $env{'form.clast'},$env{'form.cgen'},
  806:                  $env{'form.csec'},$enddate,
  807:                  $startdate,$env{'form.forceid'},
  808:                  $desiredhost,$env{'form.emailaddress'});
  809:             if ($login_result =~ /^ok/) {
  810:                 $r->print($login_result);
  811:                 $r->print("<p> ".&mt('If active, the new role will be available when the student next logs in to LON-CAPA.')."</p>");
  812:             } else {
  813:                 $r->print(&mt('unable to enroll').": ".$login_result);
  814:             }
  815: 	} else {
  816:             $r->print('<p><font color="#ff0000">'.&mt('ERROR').'</font>&nbsp;');
  817:             if ($amode =~ /^krb/) {
  818:                 $r->print(&mt('Missing Kerberos domain information.').'  ');
  819:             } else {
  820:                 $r->print(&mt('Invalid login mode or password.').'  ');
  821:             }
  822:             $r->print('<b>'.&mt('Unable to enroll').' '.$env{'form.cuname'}.'.</b></p>');
  823:         }
  824:     } else {
  825:         $r->print(&mt('Invalid username or domain'));
  826:     }    
  827:     $r->print("<p><a href='/adm/dropadd?action=enrollstudent'>".&mt("Enroll another student")."</a></p>");
  828:     if (ref($srcharray) eq 'ARRAY') {
  829:         foreach my $item (@{$srcharray},'ccuname','ccdomain') {
  830:             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
  831:         }
  832:     }
  833:     foreach my $item ('sortby','seluname','seludom') {
  834:         if (exists($env{'form.'.$item})) {
  835:             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
  836:         }
  837:     }
  838:     $r->print('<input type="hidden" name="phase" value="get_user_info" />'."\n".
  839:               '<input type="hidden" name="currstate" value="" />'."\n".
  840:               '<input type="hidden" name="prevphase" value="" />'."\n".
  841:               '<input type="hidden" name="action" value="enrollstudent" />'."\n".
  842:               '<input type="hidden" name="state" value="gotusername" />');
  843: }
  844: 
  845: sub setup_date_selectors {
  846:     my ($starttime,$endtime,$mode) = @_;
  847:     if (! defined($starttime)) {
  848:         $starttime = time;
  849:         unless ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
  850:             if (exists($env{'course.'.$env{'request.course.id'}.
  851:                             '.default_enrollment_start_date'})) {
  852:                 $starttime = $env{'course.'.$env{'request.course.id'}.
  853:                                   '.default_enrollment_start_date'};
  854:             }
  855:         }
  856:     }
  857:     if (! defined($endtime)) {
  858:         $endtime = time+(6*30*24*60*60); # 6 months from now, approx
  859:         unless ($mode eq 'createcourse') {
  860:             if (exists($env{'course.'.$env{'request.course.id'}.
  861:                             '.default_enrollment_end_date'})) {
  862:                 $endtime = $env{'course.'.$env{'request.course.id'}.
  863:                                 '.default_enrollment_end_date'};
  864:             }
  865:         }
  866:     }
  867:     my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
  868:                                                             'startdate',
  869:                                                             $starttime);
  870:     my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
  871:                                                           'enddate',
  872:                                                           $endtime);
  873:     if ($mode eq 'create_enrolldates') {
  874:         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  875:                                                             'startenroll',
  876:                                                             $starttime);
  877:         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  878:                                                           'endenroll',
  879:                                                           $endtime);
  880:     }
  881:     if ($mode eq 'create_defaultdates') {
  882:         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  883:                                                             'startaccess',
  884:                                                             $starttime);
  885:         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
  886:                                                           'endaccess',
  887:                                                           $endtime);
  888:     }
  889:     return ($startdateform,$enddateform);
  890: }
  891: 
  892: sub get_dates_from_form {
  893:     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
  894:     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate');
  895:     if ($env{'form.no_end_date'}) {
  896:         $enddate = 0;
  897:     }
  898:     return ($startdate,$enddate);
  899: }
  900: 
  901: sub date_setting_table {
  902:     my ($starttime,$endtime,$mode) = @_;
  903:     my ($startform,$endform)=&setup_date_selectors($starttime,$endtime,$mode);
  904:     my $dateDefault = '<nobr>'.
  905:         '<label><input type="checkbox" name="makedatesdefault" /> '.
  906:         &mt('make these dates the default for future enrollment').
  907: 	'</label></nobr>';
  908:     if ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
  909:         $dateDefault = '&nbsp;';
  910:     }
  911:     my $perpetual = '<nobr><label><input type="checkbox" name="no_end_date"';
  912:     if (defined($endtime) && $endtime == 0) {
  913:         $perpetual .= ' checked';
  914:     }
  915:     $perpetual.= ' /> '.&mt('no ending date').'</label></nobr>';
  916:     if ($mode eq 'create_enrolldates') {
  917:         $perpetual = '&nbsp;';
  918:     }
  919:     my $result = '';
  920:     $result .= "<table>\n";
  921:     $result .= '<tr><td align="right">'.&mt('Starting Date').'</td>'.
  922:         '<td>'.$startform.'</td>'.
  923:         '<td>'.$dateDefault.'</td>'."</tr>\n";
  924:     $result .= '<tr><td align="right">'.&mt('Ending Date').'</td>'.
  925:         '<td>'.$endform.'</td>'.
  926:         '<td>'.$perpetual.'</td>'."</tr>\n";
  927:     $result .= "</table>\n";
  928:     return $result;
  929: }
  930: 
  931: sub make_dates_default {
  932:     my ($startdate,$enddate) = @_;
  933:     my $result = '';
  934:     my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  935:     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
  936:     my $put_result = &Apache::lonnet::put('environment',
  937:             {'default_enrollment_start_date'=>$startdate,
  938:              'default_enrollment_end_date'  =>$enddate},$dom,$crs);
  939:     if ($put_result eq 'ok') {
  940:         $result .= "Set default start and end dates for course<br />";
  941:         #
  942:         # Refresh the course environment
  943:         &Apache::lonnet::coursedescription($env{'request.course.id'},
  944: 					   {'freshen_cache' => 1});
  945:     } else {
  946:         $result .= &mt('Unable to set default dates for course').":".$put_result.
  947:             '<br />';
  948:     }
  949:     return $result;
  950: }
  951: 
  952: =pod
  953: 
  954: =item get_student_username_domain_form()
  955:     
  956:     Single student enrollment routines (some of them)
  957: 
  958: =cut
  959: 
  960: sub get_student_username_domain_form {
  961:     my ($r,$elements,$response,$srch,$forcenewuser) =  @_;
  962:     my $loaditems = {
  963:             'onload' => "javascript:setFormElements(document.studentform)",
  964:                      };
  965:     $r->print(&header(undef,$loaditems));
  966:     &Apache::lonhtmlcommon::add_breadcrumb
  967:         ({href=>"javascript:backPage(document.studentform,'','')",
  968:           text=>"Single user search"});
  969:     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
  970:                                                   'Course_Add_Student'));
  971:     my $defdom=$env{'request.role.domain'};
  972: 
  973:     my $jscript = &Apache::loncommon::studentbrowser_javascript()."\n".
  974:         '<script type="text/javascript">'."\n".
  975:         &Apache::lonhtmlcommon::set_form_elements($elements->{'studentform'}).
  976:         '</script>'."\n";
  977: 
  978:     my %lt=&Apache::lonlocal::texthash(
  979: 		    'eos'  => "Enroll One Student",
  980: 		    'usr'  => "Username",
  981:                     'dom'  => "Domain",
  982:                     'been' => "Begin Enrollment",
  983: 				       );
  984:     $r->print(<<END);
  985: $jscript
  986: <h3>$lt{'eos'}</h3>
  987: END
  988:     $r->print($response);
  989:     $r->print(&single_user_entry_form($defdom,$srch,$forcenewuser));
  990:     return;
  991: }
  992: 
  993: sub single_user_entry_form {
  994:     my ($dom,$srch,$forcenewuser) = @_;
  995:     my $userpicker =
  996:        &Apache::loncommon::user_picker($dom,$srch,$forcenewuser,
  997:                                        'document.studentform');
  998:     my $srchbutton = &mt('Search');
  999:     my $output = <<"ENDDOCUMENT";
 1000: <input type="hidden" name="action" value="enrollstudent" />
 1001: <input type="hidden" name="state" value="gotusername" />
 1002: <input type="hidden" name="phase" value="get_user_info" />
 1003: $userpicker
 1004: <input name="userrole" type="button" value="$srchbutton" onclick="javascript:validateEntry(document.studentform)" />
 1005: ENDDOCUMENT
 1006:     return $output;
 1007: }
 1008: 
 1009: sub print_enroll_single_student_form {
 1010:     my ($r,$jscript,$ccuname,$ccdomain,$srch) = @_;
 1011:     $r->print(&header($jscript));
 1012:     &Apache::lonhtmlcommon::add_breadcrumb
 1013:         ({href=>"javascript:backPage(document.studentform,'','')",
 1014:           text=>"Single user search"});
 1015:     if ($env{'form.phase'} eq 'userpicked') {
 1016:         &Apache::lonhtmlcommon::add_breadcrumb
 1017:      ({href=>"javascript:backPage(document.studentform,'get_user_info','select')",
 1018:        text=>"Select user",});
 1019:     }
 1020:     &Apache::lonhtmlcommon::add_breadcrumb
 1021:       ({href=>"javascript:backPage(document.studentform,'$env{'form.phase'}','modify')",
 1022:         text=>"Set enrollment",});
 1023:     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 1024:                                                   'Course_Add_Student'));
 1025:     $r->print("<h3>".&mt('Enroll One Student')."</h3>");
 1026:     #
 1027:     my $home = &Apache::lonnet::homeserver($ccuname,$ccdomain);
 1028:     # $new_user flags whether we are creating a new user or using an old one
 1029:     my $new_user = 1;
 1030:     if ($home ne 'no_host') {
 1031:         $new_user = 0;
 1032:     }
 1033:     #
 1034:     my $user_data_html = '';
 1035:     my $javascript_validations = '';
 1036:     if ($new_user) {
 1037:         my $usertoadd;
 1038:         my $instsrch = {
 1039:                          srchin => 'instd',
 1040:                          srchby => 'uname',
 1041:                          srchtype => 'exact',
 1042:                          srchterm => $ccuname,
 1043:                          srchdomain => $ccdomain,
 1044:                        };
 1045:         if (($instsrch->{'srchterm'} ne '') && ($instsrch->{'srchdomain'} ne '')) {
 1046:             $usertoadd = $instsrch->{'srchterm'}.':'.$instsrch->{'srchdomain'};
 1047:         }
 1048:         my (%dirsrch_results,%inst_results);
 1049:         if ($usertoadd) {
 1050:             if (&Apache::loncreateuser::directorysrch_check($instsrch) eq 'ok') {
 1051:                 %dirsrch_results = &Apache::lonnet::inst_directory_query($instsrch);
 1052:                 if (ref($dirsrch_results{$usertoadd}) eq 'HASH') {
 1053:                     %inst_results = %{$dirsrch_results{$usertoadd}};
 1054:                 }
 1055:             }
 1056:         }
 1057: 
 1058:         my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 1059:         # Set up authentication forms
 1060:         my ($krbdef,$krbdefdom) =
 1061:             &Apache::loncommon::get_kerberos_defaults($ccdomain);
 1062:         $javascript_validations = 
 1063:             &Apache::lonuserutils::javascript_validations('auth',$krbdefdom,
 1064:                                                       undef,undef,$ccdomain);
 1065:         my %param = ( formname => 'document.studentform',
 1066:                       kerb_def_dom => $krbdefdom,
 1067:                       kerb_def_auth => $krbdef
 1068:                       );
 1069:         my $krbform = &Apache::loncommon::authform_kerberos(%param);
 1070:         my $intform = &Apache::loncommon::authform_internal(%param);
 1071:         my $locform = &Apache::loncommon::authform_local(%param);
 1072:         #
 1073:         # Set up domain selection form
 1074:         my $homeserver_form = '';
 1075:         my %servers = &Apache::lonnet::get_servers($ccdomain,'library');
 1076:         $homeserver_form = '<select name="lcserver" size="1">'."\n".
 1077:             '<option value="default" selected>default</option>'."\n";
 1078:         while (my ($servername,$serverdescription) = each (%servers)) {
 1079:             $homeserver_form .= '<option value="'.$servername.'">'.
 1080:                 $serverdescription."</option>\n";
 1081:         }
 1082:         $homeserver_form .= "</select>\n";
 1083:         #
 1084:         #
 1085: 	my %lt=&Apache::lonlocal::texthash(
 1086: 		       'udf'  => "Personal Data",
 1087:                        'fn'   => "First Name",
 1088:                        'mn'   => "Middle Name",
 1089:                        'ln'   => "Last Name",
 1090:                        'gen'  => "Generation",
 1091:                        'hs'   => "Home Server",
 1092:                        'pswd' => "Login Data",
 1093: 		       'psam' => "Please select an authentication mechanism",
 1094:                        'mail' => "E-mail Address"
 1095: 					   );
 1096: 	my $authhelp=&Apache::loncommon::help_open_topic('Auth_Options');
 1097:         $user_data_html = <<END;
 1098: <h3>$lt{'udf'} $ccuname:$ccdomain</h3>
 1099: <table>
 1100: <tr><td class="LC_dropadd_labeltext"><label for="cfirst">$lt{'fn'}</label>:</td>
 1101:     <td><input type="text" name="cfirst" size="15" value="$inst_results{'firstname'}" /></td></tr>
 1102: <tr><td class="LC_dropadd_labeltext"><label for="cmiddle">$lt{'mn'}</label>:</td>
 1103:     <td><input type="text" name="cmiddle" size="15" value="$inst_results{'middlename'}" /></td></tr>
 1104: <tr><td class="LC_dropadd_labeltext"><label for="clast">$lt{'ln'}</label>:</td>
 1105:     <td><input type="text" name="clast" size="15" value="$inst_results{'lastname'}" /></td></tr>
 1106: <tr><td class="LC_dropadd_labeltext"><label for="cgen">$lt{'gen'}</label>:</td>
 1107:     <td><input type="text" name="cgen" size="5" value="$inst_results{'generation'}" /> </td></tr>
 1108: <tr><td class="LC_dropadd_labeltext"><label for="lcserver">$lt{'hs'}</label>:</td>
 1109:     <td>$homeserver_form</td></tr>
 1110: <tr><td class="LC_dropadd_labeltext"><label for="emailaddress">$lt{'mail'}</label>:</td>
 1111:     <td><input type="text" name="emailaddress" size="20" value="$inst_results{'permanentemail'}" /></td></tr>
 1112: </table>
 1113: <h3>$lt{'pswd'}</h3>
 1114: $lt{'psam'}$authhelp
 1115: <p>
 1116: END
 1117:         if ($krbform ne '') {
 1118:             $user_data_html .= $krbform.'<br />';
 1119:         }
 1120:         if ($intform ne '') {
 1121:             $user_data_html .= $intform.'<br />';
 1122:         }
 1123:         if ($locform ne '') {
 1124:             $user_data_html .= $locform.'<br />';
 1125:         }
 1126:         $user_data_html .= "\n</p>\n"
 1127:     } else {
 1128:         # User already exists.  Do not worry about authentication
 1129:         my %uenv = &Apache::lonnet::dump('environment',$ccdomain,$ccuname);
 1130:         $javascript_validations = &Apache::lonuserutils::javascript_validations('noauth');
 1131: 	my %lt=&Apache::lonlocal::texthash(
 1132: 		       'udf'  => "User Data for",
 1133:                        'fn'   => "First Name",
 1134:                        'mn'   => "Middle Name",
 1135:                        'ln'   => "Last Name",
 1136:                        'gen'  => "Generation",
 1137:                        'mail' => "E-mail Address",
 1138: 					   );
 1139:         $user_data_html = <<END;
 1140: <h3>$lt{'udf'} $ccuname:$ccdomain</h3>
 1141: <input type="hidden" name="lcserver" value="default" />
 1142: <table>
 1143: <tr><td class="LC_dropadd_labeltext"><label for="cfirst">$lt{'fn'}</label>:</td>
 1144:     <td><input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" /></td></tr>
 1145: <tr><td class="LC_dropadd_labeltext"><label for="cmiddle">$lt{'mn'}</label>:</td>
 1146:     <td><input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" /></td></tr>
 1147: <tr><td class="LC_dropadd_labeltext"><label for="clast">$lt{'ln'}</label>:</td>
 1148:     <td><input type="text" name="clast" value="$uenv{'lastname'}" size="15" /></td></tr>
 1149: <tr><td class="LC_dropadd_labeltext"><label for="cgen">$lt{'gen'}</label>:</td>
 1150:     <td><input type="text" name="cgen" value="$uenv{'generation'}" size="5"  /> </td></tr>
 1151: <tr><td class="LC_dropadd_labeltext"><label for="emailaddress">$lt{'mail'}</label>:</td>
 1152:     <td><input type="text" name="emailaddress" value="$uenv{'permanentemail'}" size="20" /></td></tr>
 1153: </table>
 1154: END
 1155:     }
 1156:     my $date_table = &Apache::lonuserutils::date_setting_table();
 1157:         # Print it all out
 1158:     my %lt=&Apache::lonlocal::texthash(
 1159: 		   'cd'   => "Course Data",
 1160:                    'gs'   => "Section",
 1161:                    'idsn' => "ID/Student Number",
 1162:                    'disn' => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
 1163:                    'eas'  => "Enroll as student",
 1164: 				       );
 1165:     $r->print(<<END);
 1166: <input type="hidden" name="action" value="enrollstudent" />
 1167: <input type="hidden" name="state"  value="gotusername" />
 1168: <input type="hidden" name="cuname" value="$ccuname" />
 1169: <input type="hidden" name="lcdomain" value="$ccdomain" />
 1170: <script type="text/javascript" language="Javascript">
 1171: function verify(vf,sec_caller) {
 1172:     var founduname=0;
 1173:     var foundpwd=0;
 1174:     var foundname=0;
 1175:     var foundid=0;
 1176:     var foundsec=0;
 1177:     var tw;
 1178:     if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') && 
 1179: 	(typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
 1180:         founduname=1;
 1181:     }
 1182:     if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
 1183: 	(typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
 1184:         foundname=1;
 1185:     }
 1186:     if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
 1187:         foundsec=1;
 1188:         if (validate(sec_caller) == "error") {
 1189:             return;
 1190:         }
 1191:     }
 1192:     if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
 1193: 	foundid=1;
 1194:     }
 1195:     if (founduname==0) {
 1196: 	alert('You need to specify at least the username and domain fields');
 1197:         return;
 1198:     }
 1199:     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
 1200: }
 1201: 
 1202: $javascript_validations
 1203: 
 1204: function clearpwd(vf) {
 1205:     //nothing else needs clearing
 1206: }
 1207: 
 1208: </script>
 1209: 
 1210: $user_data_html
 1211: 
 1212: <h3>$lt{'cd'}</h3>
 1213: 
 1214: <p><label for="csec">$lt{'gs'}</label>: <input type="text" name="csec" size="5" />
 1215: </p>
 1216: $date_table
 1217: <h3>$lt{'idsn'}</h3>
 1218: <p>
 1219: <label for="cstid">$lt{'idsn'}</label>: <input type="text" name="cstid" size="10" />
 1220: </p><p>
 1221: <label>
 1222: <input type="checkbox" name="forceid" value="yes" /> 
 1223: $lt{'disn'}
 1224: </label>
 1225: </p><p>
 1226: <input type="button" onClick="verify(this.form,this.form.csec)" value="$lt{'eas'}" />
 1227: </p>
 1228: END
 1229:     $r->print('<input type="hidden" name="currstate" value="" />'."\n".
 1230:               '<input type="hidden" name="phase" value="" />'."\n".
 1231:               '<input type="hidden" name="prevphase" value="'.$env{'form.phase'}.'" />'."\n");
 1232:     if (ref($srch) eq 'HASH') {
 1233:         foreach my $item (sort(keys(%{$srch}))) {
 1234:             $r->print('<input type="hidden" name="'.$item.'" value="'.$srch->{$item}.'" />'."\n");
 1235:         }
 1236:     }
 1237:     foreach my $item ('sortby','seluname','seludom') {
 1238:         if (exists($env{'form.'.$item})) {
 1239:             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
 1240:         }
 1241:     }
 1242:     return;
 1243: }
 1244: 
 1245: =pod
 1246: 
 1247: =item print_drop_menu()
 1248: 
 1249:     Menu Phase Two Drop
 1250: 
 1251: =cut
 1252: 
 1253: sub print_drop_menu {
 1254:     my $r=shift;
 1255:     $r->print("<h3>".&mt('Drop Students')."</h3>");
 1256:     my $cid=$env{'request.course.id'};
 1257:     my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
 1258:     if (! defined($classlist)) {
 1259:         $r->print(&mt('There are no students currently enrolled.')."\n");
 1260:         return;
 1261:     }
 1262:     # Print out the available choices
 1263:     &show_drop_list($r,$classlist,$keylist);
 1264:     return;
 1265: }
 1266: 
 1267: 
 1268: =pod
 1269: 
 1270: =item print_html_classlist()
 1271: 
 1272:     view classlist
 1273: 
 1274: =cut
 1275: 
 1276: sub print_html_classlist {
 1277:     my ($r,$mode,$permission) = @_;
 1278:     if (! exists($env{'form.sortby'})) {
 1279:         $env{'form.sortby'} = 'username';
 1280:     }
 1281:     if ($env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
 1282:         $env{'form.Status'} = 'Active';
 1283:     }
 1284:     my $status_select = &Apache::lonhtmlcommon::StatusOptions
 1285:         ($env{'form.Status'});
 1286:     my $cid =$env{'request.course.id'};
 1287:     my $cdom=$env{'course.'.$cid.'.domain'};
 1288:     my $cnum=$env{'course.'.$cid.'.num'};
 1289:     #
 1290:     # List course personnel
 1291:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
 1292:     #
 1293:     if (! defined($env{'form.output'}) ||
 1294:         $env{'form.output'} !~ /^(csv|excel|html)$/ ) {
 1295:         $env{'form.output'} = 'html';
 1296:     }
 1297:     #
 1298:     $r->print('<br />'.&Apache::loncommon::start_data_table());
 1299:     foreach my $role (sort keys %coursepersonnel) {
 1300:         next if ($role =~ /^\s*$/);
 1301: 	$r->print(&Apache::loncommon::start_data_table_row().
 1302: 		  '<td>'.$role.'</td><td>');
 1303:         foreach my $user (split(',',$coursepersonnel{$role})) {
 1304: 	    my ($puname,$pudom)=split(':',$user);
 1305: 	    $r->print(' '.&Apache::loncommon::aboutmewrapper(
 1306:                                     &Apache::loncommon::plainname($puname,
 1307:                                                                   $pudom),
 1308:                                                              $puname,$pudom));
 1309: 	}
 1310:         $r->print('</td>'.&Apache::loncommon::end_data_table_row());
 1311:     }
 1312:     $r->print(&Apache::loncommon::end_data_table());
 1313:     #
 1314:     # Interface output
 1315:     $r->print('<input type="hidden" name="action" value="'.
 1316:               $env{'form.action'}.'" />');
 1317:     $r->print("<p>\n");
 1318:     if ($env{'form.action'} ne 'modifystudent') {
 1319: 	my %lt=&Apache::lonlocal::texthash('csv' => "CSV",
 1320:                                            'excel' => "Excel",
 1321:                                            'html'  => 'HTML');
 1322:         my $output_selector = '<select size="1" name="output" >';
 1323:         foreach my $outputformat ('html','csv','excel') {
 1324:             my $option = '<option value="'.$outputformat.'" ';
 1325:             if ($outputformat eq $env{'form.output'}) {
 1326:                 $option .= 'selected ';
 1327:             }
 1328:             $option .='>'.$lt{$outputformat}.'</option>';
 1329:             $output_selector .= "\n".$option;
 1330:         }
 1331:         $output_selector .= '</select>';
 1332:         $r->print('<label>'.&mt('Output Format: [_1]',$output_selector).'</label>'.('&nbsp;'x3));
 1333:     }
 1334:     $r->print('<label>'.&mt('Student Status: [_1]',$status_select)."</label>\n");
 1335:     $r->print('<input type="submit" value="'.&mt('Update Display').'" />'.
 1336:               "\n</p>\n");
 1337:     #
 1338:     # Print the classlist
 1339:     $r->print('<h2>'.&mt('Current Class List').'</h2>');
 1340:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
 1341: 
 1342:     if (exists($permission->{'view_section'})) {
 1343: 	my $sec = &Apache::loncoursedata::CL_SECTION();	
 1344: 	foreach my $student (keys(%{$classlist})) {
 1345: 	    if ($classlist->{$student}[$sec] ne $permission->{'view_section'}) {
 1346: 		delete($classlist->{$student});
 1347: 	    }
 1348: 	}
 1349:     }
 1350: 
 1351:     if (! defined($classlist)) {
 1352:         $r->print(&mt('There are no students currently enrolled.')."\n");
 1353:     } else {
 1354:         # Print out the available choices
 1355:         if ($env{'form.action'} eq 'modifystudent') {
 1356:             &show_class_list($r,'view','modify',
 1357:                              $env{'form.Status'},$classlist,$keylist);
 1358:         } else {
 1359:             &show_class_list($r,$env{'form.output'},'aboutme',
 1360:                              $env{'form.Status'},$classlist,$keylist);
 1361:         }
 1362:     }
 1363: }
 1364: 
 1365: 
 1366: =pod
 1367: 
 1368: =item show_class_list()
 1369: 
 1370:     Show student list to drop
 1371: 
 1372: =cut
 1373: 
 1374: sub show_class_list {
 1375:     my ($r,$mode,$linkto,$statusmode,$classlist,$keylist)=@_;
 1376:     my $cid=$env{'request.course.id'};
 1377:     my $cdom = $env{'course.'.$cid.'.domain'};
 1378:     my $cnum = $env{'course.'.$cid.'.num'};
 1379:     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
 1380:                                               $classlist,$keylist,$cdom,$cnum);
 1381:     #
 1382:     # Variables for excel output
 1383:     my ($excel_workbook, $excel_sheet, $excel_filename,$row,$format);
 1384:     #
 1385:     # Variables for csv output
 1386:     my ($CSVfile,$CSVfilename);
 1387:     #
 1388:     my $sortby = $env{'form.sortby'};
 1389:     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end|type)$/) {
 1390:         $sortby = 'username';
 1391:     }
 1392:     if (! exists($env{'form.displayphotos'})) {
 1393:         $env{'form.displayphotos'} = 'off';
 1394:     }
 1395:     my $displayphotos = $env{'form.displayphotos'};
 1396: 
 1397:     if (! exists($env{'form.displayclickers'})) {
 1398:         $env{'form.displayclickers'} = 'off';
 1399:     }
 1400:     my $displayclickers = $env{'form.displayclickers'};
 1401: 
 1402:     # Print out header 
 1403:     unless ($mode eq 'autoenroll') {
 1404:         $r->print(<<END);
 1405: <input type="hidden" name="state" value="$env{'form.state'}" />
 1406: END
 1407:     }
 1408:     $r->print(<<END);
 1409: <input type="hidden" name="sortby" value="$sortby" />
 1410: <input type="hidden" name="displayphotos" value="$displayphotos" />
 1411: <input type="hidden" name="displayclickers" value="$displayclickers" />
 1412: END
 1413:     if ($mode eq 'html' || $mode eq 'view' || $mode eq 'autoenroll') {
 1414:         if ($linkto eq 'aboutme') {
 1415:             $r->print(&mt("Select a user name to view the user's personal page."));
 1416:         } elsif ($linkto eq 'modify') {
 1417:             $r->print(&mt("Select a user name to modify the student's information"));
 1418:         }
 1419: 	my %lt=&Apache::lonlocal::texthash(
 1420:                                            'usrn'   => "username",
 1421:                                            'dom'    => "domain",
 1422:                                            'sn'     => "student name",
 1423:                                            'sec'    => "section",
 1424:                                            'grp'    => "active groups",
 1425:                                            'start'  => "start date",
 1426:                                            'end'    => "end date",
 1427:                                            'type'   => "enroll type/action",
 1428: 					   'email'  => "e-mail address",
 1429:                                            'clicker'=> "clicker id",
 1430:                                            'photo'  => "photo",
 1431: 					   );
 1432:         unless ($mode eq 'autoenroll') {
 1433:             $r->print(<<END);
 1434: <input type="hidden" name="sname"  value="" />
 1435: <input type="hidden" name="sdom"   value="" />
 1436: END
 1437:         }
 1438:         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
 1439:             $r->print('
 1440: <script type="text/javascript">
 1441: function photowindow(photolink) {
 1442:     var title = "Photo_Viewer";
 1443:     var options = "scrollbars=1,resizable=1,menubar=0";
 1444:     options += ",width=240,height=240";
 1445:     stdeditbrowser = open(photolink,title,options,"1");
 1446:     stdeditbrowser.focus();
 1447: }
 1448: </script>
 1449:            ');
 1450:         }
 1451:         $r->print("
 1452: <p>
 1453: ".&Apache::loncommon::start_data_table()."
 1454: <tr>
 1455:         ");
 1456:         if ($mode eq 'autoenroll') {
 1457:             $r->print("
 1458:  <th><a href=\"javascript:document.studentform.sortby.value='type';document.studentform.submit();\">$lt{'type'}</a></th>
 1459:             ");
 1460:         } else {
 1461:             $r->print("
 1462: <th>Count</th>
 1463:             ");
 1464:         }
 1465:         $r->print(<<END);
 1466:     <th>
 1467:        <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">$lt{'usrn'}</a>
 1468:     </th><th>
 1469:        <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">$lt{'dom'}</a>
 1470:     </th><th>
 1471:        <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
 1472:     </th><th>
 1473:        <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">$lt{'sn'}</a>
 1474:     </th><th>
 1475:        <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">$lt{'sec'}</a>
 1476:     </th><th>
 1477:        <a href="javascript:document.studentform.sortby.value='start';document.studentform.submit();">$lt{'start'}</a>
 1478:     </th><th>
 1479:        <a href="javascript:document.studentform.sortby.value='end';document.studentform.submit();">$lt{'end'}</a>
 1480:     </th><th>
 1481:        <a href="javascript:document.studentform.sortby.value='groups';document.studentform.submit();">$lt{'grp'}</a>
 1482:     </th><th>
 1483:        <a href="javascript:document.studentform.sortby.value='email';document.studentform.submit();">$lt{'email'}</a>
 1484:     </th>
 1485: END
 1486: 
 1487: # Clicker display on or off?
 1488: 
 1489:         my %clicker_options = &Apache::lonlocal::texthash(
 1490:                                                           'on' => 'Show',
 1491:                                                           'off' => 'Hide',
 1492:                                                          );
 1493:         my $clickerchg = 'on';
 1494:         if ($displayclickers eq 'on') {
 1495:             $clickerchg = 'off';
 1496:         }
 1497:         $r->print('    <th>'."\n".'     '.
 1498:             '<a href="javascript:document.studentform.displayclickers.value='.
 1499:                       "'".$clickerchg."'".';document.studentform.submit();">'.
 1500:                       $clicker_options{$clickerchg}.'</a>&nbsp;'.$lt{'clicker'}."\n".
 1501:                       '    </th>'."\n");
 1502: 
 1503: # Photo display on or off?
 1504:         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
 1505:             my %photo_options = &Apache::lonlocal::texthash(
 1506:                                                             'on' => 'Show',
 1507:                                                             'off' => 'Hide',
 1508:                                                             );
 1509:             my $photochg = 'on';
 1510:             if ($displayphotos eq 'on') {
 1511:                 $photochg = 'off';
 1512:             }
 1513:             $r->print('    <th>'."\n".'     '. 
 1514:             '<a href="javascript:document.studentform.displayphotos.value='.
 1515:                       "'".$photochg."'".';document.studentform.submit();">'.
 1516:                       $photo_options{$photochg}.'</a>&nbsp;'.$lt{'photo'}."\n".
 1517:                       '    </th>'."\n");
 1518:         }
 1519:         $r->print("  </tr>\n");
 1520: 
 1521: # Done with the HTML header line
 1522: 
 1523:     } elsif ($mode eq 'csv') {
 1524: 	#
 1525: 	# Open a file
 1526: 	$CSVfilename = '/prtspool/'.
 1527: 	    $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
 1528:             time.'_'.rand(1000000000).'.csv';
 1529: 	unless ($CSVfile = Apache::File->new('>/home/httpd'.$CSVfilename)) {
 1530: 	    $r->log_error("Couldn't open $CSVfilename for output $!");
 1531: 	    $r->print(&mt('Problems occurred in writing the csv file. '
 1532:                          .'This error has been logged. '
 1533:                          .'Please alert your LON-CAPA administrator.'));
 1534: 	    $CSVfile = undef;
 1535: 	}
 1536: 	#
 1537: 	# Write headers and data to file
 1538:         if($statusmode eq 'Expired') {
 1539:             print $CSVfile '"'.&mt('Students with expired roles').'"'."\n";
 1540:         }
 1541:         if($statusmode eq 'Future') {
 1542:             print $CSVfile '"'.&mt('Students with future roles').'"'."\n";
 1543:         }
 1544:         if ($statusmode eq 'Any') {
 1545:             print $CSVfile '"'.join('","',map {
 1546: 		&Apache::loncommon::csv_translate(&mt($_))
 1547:                 } ("username","domain","ID","student name",
 1548:                    "section","start date","end date","status",
 1549: 		   "active groups","email address"))
 1550:                   .'"'."\n";
 1551:         } else {
 1552:             print $CSVfile '"'.join('","',map {
 1553: 		&Apache::loncommon::csv_translate(&mt($_))
 1554:                 } ("username","domain","ID","student name",
 1555:                    "section","start date","end date",
 1556: 		   "active groups","email address")).'"'."\n";
 1557:         }
 1558:     } elsif ($mode eq 'excel') {
 1559:         # Create the excel spreadsheet
 1560:         ($excel_workbook,$excel_filename,$format) = 
 1561:             &Apache::loncommon::create_workbook($r);
 1562:         return if (! defined($excel_workbook));
 1563:         $excel_sheet = $excel_workbook->addworksheet('classlist');
 1564:         #
 1565:         my $description = 'Class List for '.
 1566:             $env{'course.'.$env{'request.course.id'}.'.description'};
 1567:         $excel_sheet->write($row++,0,$description,$format->{'h1'});
 1568:         #
 1569:         $excel_sheet->write($row++,0,["username","domain","ID",
 1570:                                       "student name","section",
 1571:                                       "start date","end date","status",
 1572:                                       "active groups","email address"],
 1573:                             $format->{'bold'});
 1574:     }
 1575: 
 1576: # Done with header lines in all formats
 1577: 
 1578:     #
 1579:     # Sort the students
 1580:     my %index;
 1581:     my $i;
 1582:     foreach (@$keylist) {
 1583:         $index{$_} = $i++;
 1584:     }
 1585:     $index{'groups'} = scalar(@{$keylist});
 1586:     my $index  = $index{$sortby};
 1587:     my $second = $index{'username'};
 1588:     my $third  = $index{'domain'};
 1589:     my @Sorted_Students = sort {
 1590:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
 1591:             ||
 1592:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
 1593:             ||
 1594:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
 1595:         } (keys(%$classlist));
 1596:     my $studentcount = 0;
 1597:     my $autocount = 0;
 1598:     my $manualcount = 0;
 1599:     my $unlockcount = 0;
 1600:     my $lockcount = 0;
 1601:     foreach my $student (@Sorted_Students) {
 1602:         my $sdata = $classlist->{$student};
 1603:         my $groups = $classgroups->{$student};
 1604:         my $username = $sdata->[$index{'username'}];
 1605:         my $domain   = $sdata->[$index{'domain'}];
 1606:         my $section  = $sdata->[$index{'section'}];
 1607:         my $active_groups;
 1608:         if (ref($groups->{active}) eq 'HASH') {
 1609:             $active_groups = join(', ',keys(%{$groups->{'active'}}));
 1610:         }
 1611:         my $name     = $sdata->[$index{'fullname'}];
 1612:         my $id       = $sdata->[$index{'id'}];
 1613:         my $status   = $sdata->[$index{'status'}];
 1614:         next if (($statusmode ne 'Any') && ($status ne $statusmode));
 1615:         my $start    = $sdata->[$index{'start'}];
 1616:         my $end      = $sdata->[$index{'end'}];
 1617:         my $type     = $sdata->[$index{'type'}];
 1618: 
 1619: 	my %emails   = &Apache::loncommon::getemails($username,$domain);
 1620: 	my $email;
 1621: 	if ($emails{'permanentemail'} =~ /\S/) {
 1622: 	    $email = $emails{'permanentemail'};
 1623: 	}
 1624: 
 1625:         if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
 1626:             if (! defined($start) || $start == 0) {
 1627:                 $start = &mt('none');
 1628:             } else {
 1629:                 $start = &Apache::lonlocal::locallocaltime($start);
 1630:             }
 1631:             if (! defined($end) || $end == 0) {
 1632:                 $end = &mt('none');
 1633:             } else {
 1634:                 $end = &Apache::lonlocal::locallocaltime($end);
 1635:             }
 1636: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1637:             if ($mode eq 'autoenroll') {
 1638:                 my $lockedtype = $sdata->[$index{'lockedtype'}];
 1639:                 $studentcount++;
 1640:                 my $cellentry;
 1641:                 if ($type eq 'auto') {
 1642:                     $cellentry = '<b>'.&mt('auto').'</b>&nbsp;<label><input type="checkbox" name="chgauto" value="'.$username.':'.$domain.'" />&nbsp;Change</label>';
 1643:                     $autocount ++;
 1644:                 } else {
 1645:                     $cellentry = '<table border="0" cellspacing="0"><tr><td rowspan="2"><b>'.&mt('manual').'</b></td><td><nobr><label><input type="checkbox" name="chgmanual" value="'.$username.':'.$domain.'" />&nbsp;Change</label></nobr></td></tr><tr><td><nobr>';
 1646:                     $manualcount ++;
 1647:                     if ($lockedtype) {
 1648:                         $cellentry .= '<label><input type="checkbox" name="unlockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Unlock').'</label>';
 1649:                         $unlockcount ++;
 1650:                     } else {
 1651:                         $cellentry .= '<label><input type="checkbox" name="lockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Lock').'</label>';
 1652:                         $lockcount ++;
 1653:                     }
 1654:                     $cellentry .= '</nobr></td></tr></table>';
 1655:                 }
 1656:                 $r->print("<td>$cellentry<td>\n    ");
 1657:             } else {
 1658:                 $r->print("<td>".(++$studentcount)."</td><td>\n    ");
 1659:             }
 1660:             if ($linkto eq 'nothing') {
 1661:                 $r->print($username);
 1662:             } elsif ($linkto eq 'aboutme') {
 1663:                 $r->print(&Apache::loncommon::aboutmewrapper($username,
 1664:                                                              $username,
 1665:                                                              $domain));
 1666:             } elsif ($linkto eq 'modify') {
 1667:                 $r->print('<a href="'.
 1668:                           "javascript:document.studentform.sname.value='".
 1669:                           $username.
 1670:                           "';document.studentform.sdom.value='".$domain.
 1671:                           "';document.studentform.state.value='selected".
 1672:                           "';document.studentform.submit();".'">'.
 1673:                           $username."</a>\n");
 1674:             }
 1675:             $r->print(<<"END");
 1676:     </td>
 1677:     <td>$domain</td>
 1678:     <td>$id</td>
 1679:     <td>$name</td>
 1680:     <td>$section</td>
 1681:     <td>$start</td>
 1682:     <td>$end</td>
 1683:     <td>$active_groups</td>
 1684:     <td>$email</td>
 1685: END
 1686: 
 1687: # Clickers
 1688:             if ($displayclickers eq 'on') {
 1689:                my $clickers =
 1690:                (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
 1691:                if ($clickers!~/\w/) { $clickers='-'; }
 1692:                $r->print('<td>'.$clickers.'</td>');
 1693:             } else {
 1694:                 $r->print('    <td>&nbsp;</td>  ');
 1695:             }
 1696: 
 1697: # Photos
 1698: 
 1699:             if ($env{'course.'.$env{'request.course.id'}.
 1700: 			 '.internal.showphoto'}) {
 1701:                 if ($displayphotos eq 'on') {
 1702:                     my $imgurl = 
 1703: 			&Apache::lonnet::retrievestudentphoto($domain,
 1704: 							      $username,'gif',
 1705: 							      'thumbnail');
 1706:                 
 1707:                     $r->print('    <td align="right"><a href="javascript:photowindow('."'".&Apache::lonnet::studentphoto($domain,$username,'jpg')."'".')"><img src="'.$imgurl.'" border="1"></a></td>');
 1708:                 } else {
 1709:                     $r->print('    <td>&nbsp;</td>  ');
 1710:                 }
 1711:             }
 1712: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1713:         } elsif ($mode eq 'csv') {
 1714:             next if (! defined($CSVfile));
 1715:             # no need to bother with $linkto
 1716:             if (! defined($start) || $start == 0) {
 1717:                 $start = &mt('none');
 1718:             } else {
 1719:                 $start = &Apache::lonlocal::locallocaltime($start);
 1720:             }
 1721:             if (! defined($end) || $end == 0) {
 1722:                 $end = &mt('none');
 1723:             } else {
 1724:                 $end = &Apache::lonlocal::locallocaltime($end);
 1725:             }
 1726:             my @line = ();
 1727:             foreach ($username,$domain,$id,$name,$section,$start,$end) {
 1728:                 push @line,&Apache::loncommon::csv_translate($_);
 1729:             }
 1730:             if ($statusmode eq 'Any') {
 1731:                 push @line,&Apache::loncommon::csv_translate($status);
 1732:             }
 1733:             push @line,&Apache::loncommon::csv_translate($active_groups);
 1734:             push @line,&Apache::loncommon::csv_translate($email);
 1735:             print $CSVfile '"'.join('","',@line).'"'."\n";
 1736:         } elsif ($mode eq 'excel') {
 1737:             $excel_sheet->write($row,0,[$username,$domain,$id,
 1738:                                           $name,$section]);
 1739:             my $col = 5;
 1740:             foreach my $time ($start,$end) {
 1741:                 if (defined($time) && $time != 0) {
 1742:                     $excel_sheet->write($row,$col++,
 1743:                                    &Apache::lonstathelpers::calc_serial($time),
 1744:                                     $format->{'date'});
 1745:                 } else {
 1746:                     $excel_sheet->write($row,$col++,'none');
 1747:                 }                    
 1748:             }
 1749:             $excel_sheet->write($row,$col++,$status);
 1750:             $excel_sheet->write($row,$col++,$active_groups);
 1751:             $excel_sheet->write($row,$col++,$email);
 1752:             $row++;
 1753:         }
 1754:     }
 1755:     if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
 1756: 	$r->print(&Apache::loncommon::end_data_table().'<br />');
 1757:     } elsif ($mode eq 'excel') {
 1758:         $excel_workbook->close();
 1759:         $r->print('<p><a href="'.$excel_filename.'">'.
 1760:                   &mt('Your Excel spreadsheet').'</a> '.&mt('is ready for download').'.</p>'."\n");
 1761:     } elsif ($mode eq 'csv') {
 1762:         close($CSVfile);
 1763:         $r->print('<a href="'.$CSVfilename.'">'.
 1764:                   &mt('Your CSV file').'</a> is ready for download.'.
 1765:                   "\n");
 1766:         $r->rflush();
 1767:     }
 1768:     if ($mode eq 'autoenroll') {
 1769:         return ($studentcount,$autocount,$manualcount,$lockcount,$unlockcount);
 1770:     }
 1771:     return;
 1772: }
 1773: 
 1774: 
 1775: =pod
 1776: 
 1777: =item print_modify_student_form()
 1778: 
 1779:     print out form for modification of a single students data
 1780: 
 1781: =cut
 1782: 
 1783: sub print_modify_student_form {
 1784:     my $r = shift();
 1785:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1786:                                             ['sdom','sname']);    
 1787:     my $sname  = $env{'form.sname'};
 1788:     my $sdom   = $env{'form.sdom'};
 1789:     my $sortby = $env{'form.sortby'};
 1790:     # determine the students name information
 1791:     my %info=&Apache::lonnet::get('environment',
 1792:                                   ['firstname','middlename',
 1793:                                    'lastname','generation','id',
 1794:                                    'permanentemail'], $sdom, $sname);
 1795:     my ($tmp) = keys(%info);
 1796:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1797:         $r->print('<font color="#ff0000" size="+2">'.&mt('Error').'</font>'.
 1798:                   '<p>'.
 1799:                   &mt('Unable to retrieve environment data for').' '.$sname.
 1800:                   &mt('in domain').' '.$sdom.'</p><p>'.
 1801:                   &mt('Please contact your LON-CAPA administrator regarding this situation.').'</p>'.&Apache::loncommon::end_page());
 1802:         return;
 1803:     }
 1804:     # determine the students starting and ending times and section
 1805:     my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
 1806:     if ($starttime =~ /^error/) {
 1807:         $r->print('<h2>'&mt('Error').'</h2>');
 1808:         $r->print('<p>'.$starttime.'</p>');
 1809:         return;
 1810:     }
 1811:     #
 1812:     # Deal with date forms
 1813:     my $current_date_description = '';
 1814:     my $textdate = '';
 1815: 
 1816:     if (! defined($starttime) || $starttime == 0) {
 1817:         $current_date_description = &mt('Current Starting Date: not set').
 1818:             '<br />';
 1819:     } else {
 1820:         $current_date_description = 
 1821:             &mt('Current Starting Date: [_1]',
 1822:                 &Apache::lonlocal::locallocaltime($starttime)).'<br />';
 1823:     }
 1824:     if (! defined($endtime) || $endtime == 0) {
 1825:         $current_date_description.= &mt('Current Ending Date: not set').
 1826:             '<br />';
 1827:     } else {
 1828:         $current_date_description.= 
 1829:             &mt('Current Ending Date: [_1]',
 1830:                 &Apache::lonlocal::locallocaltime($endtime)).'<br />';
 1831: 
 1832:     }
 1833:     my $date_table = 
 1834:         &Apache::lonuserutils::date_setting_table($starttime,$endtime);
 1835:     #
 1836:     if (! exists($env{'form.Status'}) || 
 1837:         $env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
 1838:         $env{'form.Status'} = 'crap';
 1839:     }
 1840:     # Make sure student is enrolled in course
 1841:     my %lt=&Apache::lonlocal::texthash(
 1842: 	           'mef'   => "Modify Enrollment for",
 1843:                    'odcc'  => "Only domain coordinators can change a users password.",
 1844:                    'sn'    => "Student Name",
 1845:                    'fn'    => "First",
 1846:                    'mn'    => "Middle",
 1847:                    'ln'    => "Last",
 1848:                    'gen'   => "Generation",
 1849:                    'email' => "E-mail address",
 1850:                    'sid'   => "Student ID",
 1851:                    'disn'  => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
 1852:                    'sec'   => "Section",
 1853:                    'sm'    => "Submit Modifications",
 1854: 				       );
 1855: # Check if section name is valid
 1856:     my $section_check = &Apache::lonuserutils::section_check_js();
 1857:     $r->print(<<"END");
 1858: <script type="text/javascript">
 1859: $section_check
 1860: function secverify(formname,caller) {
 1861:     if (validate(caller) == "error") {
 1862:         return;
 1863:     } else {
 1864:         formname.submit();
 1865:     }
 1866: }
 1867: </script>
 1868: <p>
 1869: <font size="+1">
 1870: $lt{'odcc'}
 1871: </font>
 1872: </p>
 1873: <input type="hidden" name="slogin"  value="$sname"  />
 1874: <input type="hidden" name="sdomain" value="$sdom" />
 1875: <input type="hidden" name="action"  value="modifystudent" />
 1876: <input type="hidden" name="state"   value="done" />
 1877: <input type="hidden" name="sortby"  value="$sortby" />
 1878: <input type="hidden" name="Status"  value="$env{'form.Status'}" />
 1879: <h3>$lt{'mef'} $info{'firstname'} $info{'middlename'} 
 1880: $info{'lastname'} $info{'generation'}, $sname:$sdom</h3>
 1881: <p>
 1882: <b>$lt{'sn'}</b>
 1883: <table>
 1884: <tr><th>$lt{'fn'}</th><th>$lt{'mn'}</th><th>$lt{'ln'}</th><th>$lt{'gen'}</th></tr>
 1885: <tr><td>
 1886: <input type="text" name="firstname"  value="$info{'firstname'}"  /></td><td>
 1887: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
 1888: <input type="text" name="lastname"   value="$info{'lastname'}"   /></td><td>
 1889: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
 1890: </table>
 1891: </p><p>
 1892: <b>$lt{'email'}</b>: <input type="text" name="permanentemail" value="$info{'permanentemail'}" size="30" />
 1893: </p><p>
 1894: <b>$lt{'sid'}</b>: <input type="text" name="id" value="$info{'id'}" size="12" />
 1895: </p><p>
 1896: <label>
 1897: <input type="checkbox" name="forceid" /> 
 1898: $lt{'disn'}
 1899: </label>
 1900: </p><p>
 1901: <b>$lt{'sec'}</b>: <input type="text" name="section" value="$section" size="14" />
 1902: </p>
 1903: <p>$current_date_description</p>
 1904: <p>$date_table</p>
 1905: <input type="button" value="$lt{'sm'}" onClick="secverify(this.form,this.form.section)" />
 1906: END
 1907:     $r->print(&Apache::loncommon::end_page());
 1908:     return;
 1909: }
 1910: 
 1911: 
 1912: =pod 
 1913: 
 1914: =item modify_single_student()
 1915: 
 1916:     modify a single students section 
 1917: 
 1918: =cut
 1919: 
 1920: sub modify_single_student {
 1921:     my ($r) = @_;
 1922:     #
 1923:     # Remove non alphanumeric values from the section
 1924:     $env{'form.section'} =~ s/\W//g;
 1925:     #
 1926:     # Do the date defaults first
 1927:     my ($starttime,$endtime) = &Apache::lonuserutils::get_dates_from_form();
 1928:     if ($env{'form.makedatesdefault'}) {
 1929:         $r->print(&Apache::lonuserutils::make_dates_default($starttime,
 1930:                                                             $endtime));
 1931:     }
 1932:     # Get the 'sortby' and 'Status' variables so the user goes back to their
 1933:     # previous screen
 1934:     my $sortby = $env{'form.sortby'};
 1935:     my $status = $env{'form.Status'};
 1936:     #
 1937:     # We always need this information
 1938:     my $slogin     = $env{'form.slogin'};
 1939:     my $sdom       = $env{'form.sdomain'};
 1940:     #
 1941:     # Get the old data
 1942:     my %old=&Apache::lonnet::get('environment',
 1943:                                  ['firstname','middlename',
 1944:                                   'lastname','generation','id',
 1945:                                   'permanentemail'],$sdom, $slogin);
 1946:     $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
 1947:                                                   $env{'request.course.id'});
 1948:     my ($tmp) = keys(%old);
 1949:     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1950:         $r->print(&mt('There was an error determining the environment values for')." $slogin : $sdom.");
 1951:         return;
 1952:     }
 1953:     undef $tmp;
 1954:     #
 1955:     # Get the new data
 1956:     my $firstname  = $env{'form.firstname'};
 1957:     my $middlename = $env{'form.middlename'};
 1958:     my $lastname   = $env{'form.lastname'};
 1959:     my $generation = $env{'form.generation'};
 1960:     my $permanentemail = $env{'form.permanentemail'};
 1961:     my $section    = $env{'form.section'};
 1962:     my $courseid   = $env{'request.course.id'};
 1963:     my $sid        = $env{'form.id'};
 1964:     my $displayable_starttime = localtime($starttime);
 1965:     my $displayable_endtime   = localtime($endtime);
 1966:     # 
 1967:     # check for forceid override
 1968:     if ((defined($old{'id'})) && ($old{'id'} ne '') && 
 1969:         ($sid ne $old{'id'}) && (! exists($env{'form.forceid'}))) {
 1970:         $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>");
 1971:         $sid = $old{'id'};
 1972:     }
 1973:     #
 1974:     # talk to the user about what we are going to do
 1975:     my %lt=&Apache::lonlocal::texthash(
 1976: 	           'mdu'   => "Modifying data for user",
 1977:                    'si'    => "Student Information",
 1978:                    'fd'    => "Field",
 1979:                    'ov'    => "Old Value",
 1980:                    'nv'    => "New Value",
 1981:                    'fn'    => "First name",
 1982:                    'mn'    => "Middle name",
 1983:                    'ln'    => "Last name",
 1984:                    'gen'   => "Generation",
 1985:                    'em'    => "E-mail address",
 1986:                    'sec'   => "Section",
 1987:                    'ri'    => "Role Information",
 1988:                    'st'    => "Start Time",
 1989:                    'et'    => "End Time",
 1990: 				       );
 1991:     $r->print(<<END);
 1992:     <h3>$lt{'mdu'} $slogin:$sdom </h3>
 1993: END
 1994:     $r->print(<<END);
 1995: <table>
 1996:  <tr>
 1997:   <td>
 1998:     <table class="LC_nested_outer">
 1999:      <tr>
 2000:       <th>$lt{si}</th>
 2001:      </tr>
 2002:      <tr>
 2003:       <td>
 2004:        <table class="LC_nested">
 2005:         <tr class="LC_info_row">
 2006:          <td class="LC_left_item"> $lt{'fd'} </td>
 2007:          <td class="LC_left_item"> $lt{'ov'} </td>
 2008:          <td class="LC_left_item"> $lt{'nv'} </td>
 2009:         </tr>
 2010:         <tr class="LC_odd_row">
 2011:          <td class="LC_left_item"> <b>$lt{'fn'}</b> </td>
 2012:          <td class="LC_left_item"> $old{'firstname'} </td>
 2013:          <td class="LC_left_item"> $firstname </td>
 2014:         </tr>
 2015:         <tr>
 2016:          <td class="LC_left_item"> <b>$lt{'mn'}</b> </td>
 2017:          <td class="LC_left_item"> $old{'middlename'} </td>
 2018:          <td class="LC_left_item"> $middlename </td>
 2019:         </tr>
 2020:         <tr class="LC_odd_row">
 2021:          <td class="LC_left_item"> <b>$lt{'ln'}</b> </td>
 2022:          <td class="LC_left_item"> $old{'lastname'} </td>
 2023:          <td class="LC_left_item"> $lastname </td>
 2024:         </tr>
 2025:         <tr>
 2026:          <td class="LC_left_item"> <b>$lt{'gen'}</b> </td>
 2027:          <td class="LC_left_item"> $old{'generation'} </td>
 2028:          <td class="LC_left_item"> $generation </td>
 2029:         </tr>
 2030:         <tr class="LC_odd_row">
 2031:          <td class="LC_left_item"> <b>ID</b> </td>
 2032:          <td class="LC_left_item"> $old{'id'} </td>
 2033:          <td class="LC_left_item"> $sid </td>
 2034:         </tr>
 2035:         <tr>
 2036:          <td class="LC_left_item"> <b>$lt{'em'}</b> </td>
 2037:          <td class="LC_left_item"> $old{'permanentemail'} </td>
 2038:          <td class="LC_left_item"> $permanentemail </td>
 2039:         <tr class="LC_odd_row">
 2040:          <td> <b>$lt{'sec'}</b> </td>
 2041:          <td> $old{'section'} </td>
 2042:          <td> $section</td>
 2043:         </tr>
 2044:        </table>
 2045:       </td>
 2046:      </tr>
 2047:    </table>
 2048:    <br />
 2049:    <table class="LC_nested_outer">
 2050:      <tr>
 2051:       <th>$lt{'ri'}</th>
 2052:      </tr>
 2053:      <tr>
 2054:       <td>
 2055:        <table class="LC_nested">
 2056:         <tr class="LC_odd_row">
 2057:          <td class="LC_left_item"><b>$lt{'st'}:</b></td>
 2058:          <td class="LC_right_item"> $displayable_starttime </td>
 2059:         </tr>
 2060:         <tr>
 2061:          <td class="LC_left_item"><b>$lt{'et'}:</b></td>
 2062:          <td class="LC_right_item"> $displayable_endtime   </td>
 2063:         </tr>
 2064:        </table>
 2065:       </td>
 2066:      </tr>
 2067:     </table>
 2068:   </td>
 2069:  </tr>
 2070: </table>
 2071: <p>
 2072: END
 2073:     #
 2074:     # Send request(s) to modify data (final undef is for 'desiredhost',
 2075:     # which is a moot point because the student already has an account.
 2076:     my $modify_section_results = 
 2077:         &Apache::lonuserutils::modifystudent($sdom,$slogin,
 2078:                                              $env{'request.course.id'},
 2079:                                              $section,undef);
 2080:     if ($modify_section_results !~ /^ok/) {
 2081:         $r->print(&mt('An error occurred during the attempt to change the section for this student.')."<br />");
 2082:     }
 2083:     my $roleresults = &Apache::lonnet::modifystudent
 2084:         ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
 2085:          $generation,$section,$endtime,$starttime,$env{'form.forceid'},
 2086:          undef,$permanentemail);
 2087:     if ($old{'permanentemail'} ne $permanentemail) {
 2088:         &Apache::loncommon::flush_email_cache($slogin,$sdom);
 2089:     }
 2090:     if ($roleresults eq 'refused' ) {
 2091:         $r->print(&mt('Your request to change the role information for this student was refused. You do not appear to have sufficient authority to change student information.'));
 2092:     } elsif ($roleresults !~ /ok/) {
 2093:         $r->print(&mt('An error occurred during the attempt to change the role information for this student.')."  <br />".
 2094:                   &mt('The error reported was')." ".
 2095:                   $roleresults);
 2096:         &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
 2097:                                  " data for ".$slogin." : ".$sdom." by ".
 2098:                                  $env{'user.name'}." : ".$env{'user.domain'}.
 2099:                                  ":".$roleresults);
 2100:     } else { # everything is okay!
 2101:         $r->print(&mt('Student information updated successfully.')." <br />".
 2102:                   &mt('The student must log out and log in again to see these changes.'));
 2103:     }
 2104:     my $Masd=&mt('Modify another students data');
 2105:     $r->print(<<END);
 2106: </p><p>
 2107: <input type="hidden" name="action" value="modifystudent" />
 2108: <input type="hidden" name="sortby" value="$sortby" />
 2109: <input type="hidden" name="Status" value="$status" />
 2110: <a href="javascript:document.studentform.submit();">$Masd</a>
 2111: END
 2112:     $r->print(&Apache::loncommon::end_page());
 2113:     return;
 2114: }
 2115: 
 2116: sub get_enrollment_data {
 2117:     my ($sname,$sdomain) = @_;
 2118:     my $courseid = $env{'request.course.id'};
 2119:     my $cdom = $env{'course.'.$courseid.'.domain'};
 2120:     my $cnum = $env{'course.'.$courseid.'.num'};
 2121:     my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
 2122:     my ($tmp) = keys(%roles);
 2123:     # Bail out if we were unable to get the students roles
 2124:     return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
 2125:     # Go through the roles looking for enrollment in this course
 2126:     my ($end,$start) = (undef,undef);
 2127:     my $section = '';
 2128:     my $count = scalar(keys(%roles));
 2129:     while (my ($course,$role) = each(%roles)) {
 2130:         if ($course=~m{^/\Q$cdom\E/\Q$cnum\E/*\s*(\w+)*_st$} ) {
 2131:             #
 2132:             # Get active role
 2133:             $section=$1;
 2134:             (undef,$end,$start)=split(/\_/,$role);
 2135:             my $now=time;
 2136:             my $notactive=0;
 2137:             if ($start) {
 2138:                 if ($now<$start) { $notactive=1; }
 2139:             }
 2140:             if ($end) {
 2141:                 if ($now>$end) { $notactive=1; }
 2142:             } 
 2143:             unless ($notactive) { return ($start,$end,$section); }
 2144:         }
 2145:     }
 2146:     return ($start,$end,$section);
 2147: }
 2148: 
 2149: 
 2150: =pod
 2151: 
 2152: =item show_drop_list()
 2153: 
 2154: Display a list of students to drop
 2155: Inputs: 
 2156: 
 2157: =over 4
 2158: 
 2159: =item $r, Apache request
 2160: 
 2161: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
 2162: 
 2163: =item $keylist, array pointer returned from loncoursedata::get_classlist() 
 2164: which describes the order elements are stored in the %$classlist values.
 2165: 
 2166: =item $nosort, if true, sorting links are omitted.
 2167: 
 2168: =back
 2169: 
 2170: =cut
 2171: 
 2172: sub show_drop_list {
 2173:     my ($r,$classlist,$keylist,$nosort)=@_;
 2174:     my $cid=$env{'request.course.id'};
 2175:     if (! exists($env{'form.sortby'})) {
 2176:         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2177:                                                 ['sortby']);
 2178:     }
 2179:     my $sortby = $env{'form.sortby'};
 2180:     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end)$/) {
 2181:         $sortby = 'username';
 2182:     }
 2183:     my $cdom = $env{'course.'.$cid.'.domain'};
 2184:     my $cnum = $env{'course.'.$cid,'.num'};
 2185:     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
 2186:                                               $classlist,$keylist,$cdom,$cnum);
 2187:     #
 2188:     my $action = "drop";
 2189:     $r->print(<<END);
 2190: <input type="hidden" name="sortby" value="$sortby" />
 2191: <input type="hidden" name="action" value="$action" />
 2192: <input type="hidden" name="state"  value="done" />
 2193: <script>
 2194: function checkAll(field) {
 2195:     for (i = 0; i < field.length; i++)
 2196:         field[i].checked = true ;
 2197: }
 2198: 
 2199: function uncheckAll(field) {
 2200:     for (i = 0; i < field.length; i++)
 2201:         field[i].checked = false ;
 2202: }
 2203: </script>
 2204: <p>
 2205: <input type="hidden" name="phase" value="four">
 2206: END
 2207: 
 2208: my %lt=&Apache::lonlocal::texthash('usrn'   => "username",
 2209:                                    'dom'    => "domain",
 2210:                                    'sn'     => "student name",
 2211:                                    'sec'    => "section",
 2212:                                    'start'  => "start date",
 2213:                                    'end'    => "end date",
 2214:                                    'groups' => "active groups",
 2215:                                    );
 2216:     if ($nosort) {
 2217: 	$r->print(&Apache::loncommon::start_data_table());
 2218:         $r->print(<<END);
 2219: <tr>
 2220:     <th>&nbsp;</th>
 2221:     <th>$lt{'usrn'}</th>
 2222:     <th>$lt{'dom'}</th>
 2223:     <th>ID</th>
 2224:     <th>$lt{'sn'}</th>
 2225:     <th>$lt{'sec'}</th>
 2226:     <th>$lt{'start'}</th>
 2227:     <th>$lt{'end'}</th>
 2228:     <th>$lt{'groups'}</th>
 2229: </tr>
 2230: END
 2231: 
 2232:     } else  {
 2233: 	$r->print(&Apache::loncommon::start_data_table());
 2234:         $r->print(<<END);
 2235: <tr><th>&nbsp;</th>
 2236:     <th>
 2237:        <a href="/adm/dropadd?action=$action&sortby=username">$lt{'usrn'}</a>
 2238:     </th><th>
 2239:        <a href="/adm/dropadd?action=$action&sortby=domain">$lt{'dom'}</a>
 2240:     </th><th>
 2241:        <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
 2242:     </th><th>
 2243:        <a href="/adm/dropadd?action=$action&sortby=fullname">$lt{'sn'}</a>
 2244:     </th><th>
 2245:        <a href="/adm/dropadd?action=$action&sortby=section">$lt{'sec'}</a>
 2246:     </th><th>
 2247:        <a href="/adm/dropadd?action=$action&sortby=start">$lt{'start'}</a>
 2248:     </th><th>
 2249:        <a href="/adm/dropadd?action=$action&sortby=end">$lt{'end'}</a>
 2250:     </th><th>
 2251:        <a href="/adm/dropadd?action=$action&sortby=groups">$lt{'groups'}</a>
 2252:     </th>
 2253: </tr>
 2254: END
 2255:     }
 2256:     #
 2257:     # Sort the students
 2258:     my %index;
 2259:     my $i;
 2260:     foreach (@$keylist) {
 2261:         $index{$_} = $i++;
 2262:     }
 2263:     $index{'groups'} = scalar(@$keylist);
 2264:     my $index  = $index{$sortby};
 2265:     my $second = $index{'username'};
 2266:     my $third  = $index{'domain'};
 2267:     my @Sorted_Students = sort {
 2268:         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
 2269:             ||
 2270:         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
 2271:             ||
 2272:         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
 2273:         } (keys(%$classlist));
 2274:     foreach my $student (@Sorted_Students) {
 2275:         my $error;
 2276:         my $sdata = $classlist->{$student};
 2277:         my $username = $sdata->[$index{'username'}];
 2278:         my $domain   = $sdata->[$index{'domain'}];
 2279:         my $section  = $sdata->[$index{'section'}];
 2280:         my $name     = $sdata->[$index{'fullname'}];
 2281:         my $id       = $sdata->[$index{'id'}];
 2282:         my $start    = $sdata->[$index{'start'}];
 2283:         my $end      = $sdata->[$index{'end'}];
 2284:         my $groups = $classgroups->{$student};
 2285:         my $active_groups;
 2286:         if (ref($groups->{active}) eq 'HASH') {
 2287:             $active_groups = join(', ',keys(%{$groups->{'active'}}));
 2288:         }
 2289:         if (! defined($start) || $start == 0) {
 2290:             $start = &mt('none');
 2291:         } else {
 2292:             $start = &Apache::lonlocal::locallocaltime($start);
 2293:         }
 2294:         if (! defined($end) || $end == 0) {
 2295:             $end = &mt('none');
 2296:         } else {
 2297:             $end = &Apache::lonlocal::locallocaltime($end);
 2298:         }
 2299:         my $status   = $sdata->[$index{'status'}];
 2300:         next if ($status ne 'Active');
 2301:         #
 2302:         $r->print(&Apache::loncommon::start_data_table_row());
 2303:         $r->print(<<"END");
 2304:     <td><input type="checkbox" name="droplist" value="$student"></td>
 2305:     <td>$username</td>
 2306:     <td>$domain</td>
 2307:     <td>$id</td>
 2308:     <td>$name</td>
 2309:     <td>$section</td>
 2310:     <td>$start</td>
 2311:     <td>$end</td>
 2312:     <td>$active_groups</td>
 2313: END
 2314:         $r->print(&Apache::loncommon::end_data_table_row());
 2315:     }
 2316:     $r->print(&Apache::loncommon::end_data_table().'<br />');
 2317:     %lt=&Apache::lonlocal::texthash(
 2318: 	               'dp'   => "Drop Students",
 2319:                        'ca'   => "check all",
 2320:                        'ua'   => "uncheck all",
 2321: 				       );
 2322:     $r->print(<<"END");
 2323: </p><p>
 2324: <input type="button" value="$lt{'ca'}" onclick="javascript:checkAll(document.studentform.droplist)"> &nbsp;
 2325: <input type="button" value="$lt{'ua'}" onclick="javascript:uncheckAll(document.studentform.droplist)"> 
 2326: <p><input type=submit value="$lt{'dp'}"></p>
 2327: END
 2328:     return;
 2329: }
 2330: 
 2331: 
 2332: =pod 
 2333: 
 2334: =item print_first_courselist_upload_form()
 2335: 
 2336:     Print out the initial form to get the courselist file
 2337: 
 2338: =cut
 2339: 
 2340: sub print_first_courselist_upload_form {
 2341:     my $r=shift;
 2342:     my $str;
 2343:     $str  = '<input type="hidden" name="phase" value="two">';
 2344:     $str .= '<input type="hidden" name="action" value="upload" />';
 2345:     $str .= '<input type="hidden"   name="state"  value="got_file" />';
 2346:     $str .= "<h3>".&mt('Upload a class list')."</h3>\n";
 2347:     $str .= &Apache::loncommon::upfile_select_html();
 2348:     $str .= "<p>\n";
 2349:     $str .= '<input type="submit" name="fileupload" value="'.
 2350:         &mt('Upload class list').'">'."\n";
 2351:     $str .= '<label><input type="checkbox" name="noFirstLine" /> '.
 2352:         &mt('Ignore First Line')."</label></p>\n";
 2353:     $str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
 2354:                          &mt("How do I create a class list from a spreadsheet")).
 2355:                              "<br />\n";
 2356:     $str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 2357:                            &mt("How do I create a CSV file from a spreadsheet")).
 2358:                                "<br />\n";
 2359:     $str .= &Apache::loncommon::end_page();
 2360:     $r->print($str);
 2361:     return;
 2362: }
 2363: 
 2364: 
 2365: =pod
 2366: 
 2367: =item upfile_drop_add()
 2368: 
 2369:     Drop/Add from uploaded file
 2370: 
 2371: =cut
 2372: 
 2373: sub upfile_drop_add {
 2374:     my $r=shift;
 2375:     &Apache::loncommon::load_tmp_file($r);
 2376:     my @studentdata=&Apache::loncommon::upfile_record_sep();
 2377:     if($env{'form.noFirstLine'}){shift(@studentdata);}
 2378:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 2379:     my $cid = $env{'request.course.id'};
 2380:     my %fields=();
 2381:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 2382:         if ($env{'form.upfile_associate'} eq 'reverse') {
 2383:             if ($env{'form.f'.$i} ne 'none') {
 2384:                 $fields{$keyfields[$i]}=$env{'form.f'.$i};
 2385:             }
 2386:         } else {
 2387:             $fields{$env{'form.f'.$i}}=$keyfields[$i];
 2388:         }
 2389:     }
 2390:     #
 2391:     # Store the field choices away
 2392:     foreach my $field (qw/username names 
 2393:                        fname mname lname gen id sec ipwd email/) {
 2394:         $env{'form.'.$field.'_choice'}=$fields{$field};
 2395:     }
 2396:     &Apache::loncommon::store_course_settings('enrollment_upload',
 2397:                                               { 'username_choice' => 'scalar',
 2398:                                                 'names_choice' => 'scalar',
 2399:                                                 'fname_choice' => 'scalar',
 2400:                                                 'mname_choice' => 'scalar',
 2401:                                                 'lname_choice' => 'scalar',
 2402:                                                 'gen_choice' => 'scalar',
 2403:                                                 'id_choice' => 'scalar',
 2404:                                                 'sec_choice' => 'scalar',
 2405:                                                 'ipwd_choice' => 'scalar',
 2406:                                                 'email_choice' => 'scalar' });
 2407: 
 2408:     #
 2409:     my ($startdate,$enddate) = &get_dates_from_form();
 2410:     if ($env{'form.makedatesdefault'}) {
 2411:         $r->print(&make_dates_default($startdate,$enddate));
 2412:     }
 2413:     # Determine domain and desired host (home server)
 2414:     my $domain=$env{'form.lcdomain'};
 2415:     my $desiredhost = $env{'form.lcserver'};
 2416:     if (lc($desiredhost) eq 'default') {
 2417:         $desiredhost = undef;
 2418:     } else {
 2419:         my %home_servers = &Apache::lonnet::get_servers($domain,'library');
 2420:         if (! exists($home_servers{$desiredhost})) {
 2421:             $r->print('<font color="#ff0000">'.&mt('Error').'</font>'.
 2422:                       &mt('Invalid home server specified'));
 2423:             $r->print(&Apache::loncommon::end_page());
 2424:             return;
 2425:         }
 2426:     }
 2427:     # Determine authentication mechanism
 2428:     my $amode  = '';
 2429:     my $genpwd = '';
 2430:     if ($env{'form.login'} eq 'krb') {
 2431:         $amode='krb';
 2432: 	$amode.=$env{'form.krbver'};
 2433:         $genpwd=$env{'form.krbarg'};
 2434:     } elsif ($env{'form.login'} eq 'int') {
 2435:         $amode='internal';
 2436:         if ((defined($env{'form.intarg'})) && ($env{'form.intarg'})) {
 2437:             $genpwd=$env{'form.intarg'};
 2438:         }
 2439:     } elsif ($env{'form.login'} eq 'loc') {
 2440:         $amode='localauth';
 2441:         if ((defined($env{'form.locarg'})) && ($env{'form.locarg'})) {
 2442:             $genpwd=$env{'form.locarg'};
 2443:         }
 2444:     }
 2445:     if ($amode =~ /^krb/) {
 2446:         if (! defined($genpwd) || $genpwd eq '') {
 2447:             $r->print('<font color="red" size="+1">'.
 2448:                       &mt('Unable to enroll students').'</font>  '.
 2449:                       &mt('No Kerberos domain was specified.').'</p>');
 2450:             $amode = ''; # This causes the loop below to be skipped
 2451:         }
 2452:     }
 2453:     if ( $domain eq &LONCAPA::clean_domain($domain)
 2454: 	&& ($amode ne '')) {
 2455:         #######################################
 2456:         ##         Enroll Students           ##
 2457:         #######################################
 2458:         $r->print('<h3>'.&mt('Enrolling Students')."</h3>\n<p>\n");
 2459:         my $count=0;
 2460:         my $flushc=0;
 2461:         my %student=();
 2462:         # Get information about course groups
 2463:         my %curr_groups = &Apache::longroup::coursegroups();
 2464:         # Get new classlist
 2465:         foreach (@studentdata) {
 2466:             my %entries=&Apache::loncommon::record_sep($_);
 2467:             # Determine student name
 2468:             unless (($entries{$fields{'username'}} eq '') ||
 2469:                     (!defined($entries{$fields{'username'}}))) {
 2470:                 my ($fname, $mname, $lname,$gen) = ('','','','');
 2471:                 if (defined($fields{'names'})) {
 2472:                     ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
 2473:                                             /([^\,]+)\,\s*(\w+)\s*(.*)$/);
 2474:                 } else {
 2475:                     if (defined($fields{'fname'})) {
 2476:                         $fname=$entries{$fields{'fname'}};
 2477:                     }
 2478:                     if (defined($fields{'mname'})) {
 2479:                         $mname=$entries{$fields{'mname'}};
 2480:                     }
 2481:                     if (defined($fields{'lname'})) {
 2482:                         $lname=$entries{$fields{'lname'}};
 2483:                     }
 2484:                     if (defined($fields{'gen'})) {
 2485:                         $gen=$entries{$fields{'gen'}};
 2486:                     }
 2487:                 }
 2488:                 if ($entries{$fields{'username'}}
 2489: 		    ne &LONCAPA::clean_username($entries{$fields{'username'}})) {
 2490:                     $r->print('<br />'.
 2491:       &mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
 2492:           $entries{$fields{'username'}},$fname,$mname,$lname,$gen).
 2493:                               '</b>');
 2494:                 } else {
 2495:                     # determine section number
 2496:                     my $sec='';
 2497:                     my $username=$entries{$fields{'username'}};
 2498:                     if (defined($fields{'sec'})) {
 2499:                         if (defined($entries{$fields{'sec'}})) {
 2500:                             $sec=$entries{$fields{'sec'}};
 2501:                         }
 2502:                     }
 2503:                     # remove non alphanumeric values from section
 2504:                     $sec =~ s/\W//g;
 2505:                     if ($sec eq "none" || $sec eq 'all') {
 2506:                         $r->print('<br />'.
 2507:       &mt('<b>[_1]</b>: Unable to enroll: section name "[_2]" for user [_3] [_4] [_5] [_6] is a reserved word.',
 2508:                         $username,$sec,$fname,$mname,$lname,$gen));
 2509:                         next;
 2510:                     } elsif (($sec ne '') && (exists($curr_groups{$sec}))) {
 2511:                         $r->print('<br />'.
 2512:       &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.',
 2513:                         $username,$sec,$fname,$mname,$lname,$gen));
 2514:                         next;
 2515:                     }
 2516:                     # determine student id number
 2517:                     my $id='';
 2518:                     if (defined($fields{'id'})) {
 2519:                         if (defined($entries{$fields{'id'}})) {
 2520:                             $id=$entries{$fields{'id'}};
 2521:                         }
 2522:                         $id=~tr/A-Z/a-z/;
 2523:                     }
 2524:                     # determine email address
 2525:                     my $email='';
 2526:                     if (defined($fields{'email'})) {
 2527:                         if (defined($entries{$fields{'email'}})) {
 2528:                             $email=$entries{$fields{'email'}};
 2529:                             unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
 2530:                         }
 2531:                     }
 2532:                     # determine student password
 2533:                     my $password='';
 2534:                     if ($genpwd) { 
 2535:                         $password=$genpwd; 
 2536:                     } else {
 2537:                         if (defined($fields{'ipwd'})) {
 2538:                             if ($entries{$fields{'ipwd'}}) {
 2539:                                 $password=$entries{$fields{'ipwd'}};
 2540:                             }
 2541:                         }
 2542:                     }
 2543:                     # Clean up whitespace
 2544:                     foreach (\$domain,\$username,\$id,\$fname,\$mname,
 2545:                              \$lname,\$gen,\$sec) {
 2546:                         $$_ =~ s/(\s+$|^\s+)//g;
 2547:                     }
 2548:                     if ($password || $env{'form.login'} eq 'loc') {
 2549:                         &Apache::lonuserutils::modifystudent($domain,
 2550:                                                          $username,$cid,
 2551:                                                          $sec,$desiredhost);
 2552:                         my $reply=&Apache::lonnet::modifystudent
 2553:                             ($domain,$username,$id,$amode,$password,
 2554:                              $fname,$mname,$lname,$gen,$sec,$enddate,
 2555:                              $startdate,$env{'form.forceid'},$desiredhost,
 2556:                              $email);
 2557:                         if ($reply ne 'ok') {
 2558:                             $reply =~ s/^error://;
 2559:                             $r->print('<br />'.
 2560:                 &mt('<b>[_1]</b>:  Unable to enroll: [_2]',$username,$reply));
 2561:          		} else {
 2562:                             $count++; $flushc++;
 2563:                             $student{$username}=1;
 2564:                             $r->print('. ');
 2565:                             if ($flushc>15) {
 2566: 				$r->rflush;
 2567:                                 $flushc=0;
 2568:                             }
 2569:                         }
 2570:                     } else {
 2571:                         $r->print('<br />'.
 2572:       &mt('<b>[_1]</b>: Unable to enroll.  No password specified.',$username)
 2573:                                   );
 2574:                     }
 2575:                 }
 2576:             }
 2577:         } # end of foreach (@studentdata)
 2578:         $r->print("</p>\n<p>\n".&mt('Processed [quant,_1,student].',$count).
 2579:                   "</p>\n");
 2580:         $r->print("<p>\n".
 2581:                   &mt('If active, the new role will be available when the '.
 2582:                   'students next log in to LON-CAPA.')."</p>\n");
 2583:         #####################################
 2584:         #           Drop students           #
 2585:         #####################################
 2586:         if ($env{'form.fullup'} eq 'yes') {
 2587:             $r->print('<h3>'.&mt('Dropping Students')."</h3>\n");
 2588:             #  Get current classlist
 2589:             my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
 2590:             if (! defined($classlist)) {
 2591:                 $r->print(&mt('There are no students currently enrolled.').
 2592:                           "\n");
 2593:             } else {
 2594:                 # Remove the students we just added from the list of students.
 2595:                 foreach (@studentdata) {
 2596:                     my %entries=&Apache::loncommon::record_sep($_);
 2597:                     unless (($entries{$fields{'username'}} eq '') ||
 2598:                             (!defined($entries{$fields{'username'}}))) {
 2599:                         delete($classlist->{$entries{$fields{'username'}}.
 2600:                                                 ':'.$domain});
 2601:                     }
 2602:                 }
 2603:                 # Print out list of dropped students.
 2604:                 &show_drop_list($r,$classlist,$keylist,'nosort');
 2605:             }
 2606:         }
 2607:     } # end of unless
 2608: }
 2609: 
 2610: # ================================================================== Phase four
 2611: sub drop_student_list {
 2612:     my $r=shift;
 2613:     my $count=0;
 2614:     my @droplist = &Apache::loncommon::get_env_multiple('form.droplist');
 2615:     foreach (@droplist) {
 2616:         my ($uname,$udom)=split(/\:/,$_);
 2617:         # drop student
 2618:         my $result = &Apache::lonuserutils::modifystudent($udom,$uname,
 2619:                                                 $env{'request.course.id'});
 2620:         if ($result eq 'ok' || $result eq 'ok:') {
 2621:             $r->print(&mt('Dropped [_1]',$uname.'@'.$udom).'<br>');
 2622:             $count++;
 2623:         } else {
 2624:             $r->print(
 2625:           &mt('Error dropping [_1]:[_2]',$uname.'@'.$udom,$result).
 2626:                       '<br />');
 2627:         }
 2628:     }
 2629:     $r->print('<p><b>'.&mt('Dropped [quant,_1,student].',$count).'</b></p>');
 2630:     $r->print('<p>'.&mt('Re-enrollment will re-activate data.')) if ($count);
 2631: }
 2632: 
 2633: sub section_check_js {
 2634:     my $groupslist;
 2635:     my %curr_groups = &Apache::longroup::coursegroups();
 2636:     if (%curr_groups) {
 2637:         $groupslist = join('","',sort(keys(%curr_groups)));
 2638:     }
 2639:     return <<"END";
 2640: function validate(caller) {
 2641:     var groups = new Array("$groupslist");
 2642:     var secname = caller.value;
 2643:     if ((secname == 'all') || (secname == 'none')) {
 2644:         alert("'"+secname+"' may not be used as the name for a section, as it is a reserved word.\\nPlease choose a different section name.");
 2645:         return 'error';
 2646:     }
 2647:     if (secname != '') {
 2648:         for (var k=0; k<groups.length; k++) {
 2649:             if (secname == groups[k]) {
 2650:                 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.");
 2651:                 return 'error';
 2652:             }
 2653:         }
 2654:     }
 2655:     return 'ok';
 2656: }
 2657: END
 2658: }
 2659: 
 2660: sub get_permission {
 2661:     my %permission;
 2662:     $permission{'view'} = 
 2663:         &Apache::lonnet::allowed('vcl',$env{'request.course.id'});
 2664:     if (!$permission{'view'}) {
 2665: 	my $scope = $env{'request.course.id'}.'/'.$env{'request.course.sec'};
 2666: 	$permission{'view'} =  &Apache::lonnet::allowed('vcl',$scope);
 2667: 	if ($permission{'view'}) {
 2668: 	    $permission{'view_section'} = $env{'request.course.sec'};
 2669: 	}
 2670:     }
 2671: 
 2672:     $permission{'enrl'} = 
 2673:         &Apache::lonnet::allowed('cst',$env{'request.course.id'});
 2674: 
 2675:     $permission{'grp_view'} =
 2676:         &Apache::lonnet::allowed('vcg',$env{'request.course.id'});
 2677:     $permission{'grp_manage'} =
 2678:         &Apache::lonnet::allowed('mdg',$env{'request.course.id'});
 2679:     my $allowed = 0;
 2680:     foreach my $perm (values(%permission)) {
 2681: 	if ($perm) { $allowed=1; last; }
 2682:     }
 2683:     return (\%permission,$allowed);
 2684: }
 2685: 
 2686: =pod
 2687: 
 2688: =item &handler()
 2689: 
 2690: The typical handler you see in all these modules.  Takes $r, the
 2691: http request, as an argument.  
 2692: 
 2693: The response to the request is governed by two form variables
 2694: 
 2695:  form.action      form.state     response
 2696:  ---------------------------------------------------
 2697:  undefined        undefined      print main menu
 2698:  upload           undefined      print courselist upload menu
 2699:  upload           got_file       deal with uploaded file,
 2700:                                  print the upload managing menu
 2701:  upload           enrolling      enroll students based on upload
 2702:  drop             undefined      print the classlist ready to drop
 2703:  drop             done           drop the selected students
 2704:  enrollstudent    undefined      print student username domain form
 2705:  enrollstudent    gotusername    print single student enroll menu
 2706:  enrollstudent    enrolling      enroll student
 2707:  classlist        undefined      print html classlist
 2708:  classlist        csv            print csv classlist
 2709:  modifystudent    undefined      print classlist to select student to modify
 2710:  modifystudent    selected       print modify student menu
 2711:  modifystudent    done           make modifications to student record
 2712: 
 2713: =cut
 2714: 
 2715: sub handler {
 2716:     my $r=shift;
 2717:     if ($r->header_only) {
 2718:         &Apache::loncommon::content_type($r,'text/html');
 2719:         $r->send_http_header;
 2720:         return OK;
 2721:     }
 2722:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 2723:                                             ['action','state']);
 2724: 
 2725:     &Apache::lonhtmlcommon::clear_breadcrumbs();
 2726:     &Apache::lonhtmlcommon::add_breadcrumb
 2727:         ({href=>"/adm/dropadd",
 2728:           text=>"Enrollment Manager",
 2729:           faq=>9,bug=>'Instructor Interface',});
 2730:     #  Needs to be in a course
 2731:     if (! ($env{'request.course.fn'})) {
 2732:         # Not in a course
 2733:         $env{'user.error.msg'}=
 2734:             "/adm/dropadd:cst:0:0:Cannot manage or view course groups, ".
 2735:                                   "or drop or add students";
 2736:         return HTTP_NOT_ACCEPTABLE; 
 2737:     }
 2738:     #
 2739: 
 2740:     my ($permission,$allowed) = &get_permission();
 2741: 
 2742:     if (!$allowed) {
 2743:         $env{'user.error.msg'}=
 2744: 	    "/adm/dropadd:cst:0:0:Cannot manage or view course groups, ".
 2745: 	                         "or drop or add students";
 2746:         return HTTP_NOT_ACCEPTABLE;
 2747:     }
 2748: 
 2749:     #
 2750:     # Only output the header information if they did not request csv format
 2751:     #
 2752:     # Start page
 2753:     &Apache::loncommon::content_type($r,'text/html');
 2754:     $r->send_http_header;
 2755:     #
 2756:     # Main switch on form.action and form.state, as appropriate
 2757:     if (! exists($env{'form.action'})) {
 2758:         $r->print(&header());
 2759:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
 2760:         my $action = &print_main_menu($r,$permission);
 2761:     } elsif ($env{'form.action'} eq 'upload' && $permission->{'enrl'}) {
 2762:         $r->print(&header());
 2763:         &Apache::lonhtmlcommon::add_breadcrumb
 2764:             ({href=>'/adm/dropadd?action=upload&state=',
 2765:               text=>"Upload Classlist"});
 2766:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Upload Classlist',
 2767: 						      'Course_Create_Class_List'));
 2768:         if (! exists($env{'form.state'})) {
 2769:             &print_first_courselist_upload_form($r);            
 2770:         } elsif ($env{'form.state'} eq 'got_file') {
 2771:             &print_upload_manager_form($r);
 2772:         } elsif ($env{'form.state'} eq 'enrolling') {
 2773:             if ($env{'form.datatoken'}) {
 2774:                 &upfile_drop_add($r);
 2775:             } else {
 2776:                 # Hmmm, this is an error
 2777:             }
 2778:         } else {
 2779:             &print_first_courselist_upload_form($r);            
 2780:         }
 2781:     } elsif ($env{'form.action'} eq 'drop' && $permission->{'enrl'}) {
 2782:         $r->print(&header());
 2783:         &Apache::lonhtmlcommon::add_breadcrumb
 2784:             ({href=>'/adm/dropadd?action=drop',
 2785:               text=>"Drop Students"});
 2786:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Drop Students',
 2787: 						      'Course_Drop_Student'));
 2788:         if (! exists($env{'form.state'})) {
 2789:             &print_drop_menu($r);
 2790:         } elsif ($env{'form.state'} eq 'done') {
 2791:             &drop_student_list($r);
 2792:         } else {
 2793:             &print_drop_menu($r);
 2794:         }
 2795:     } elsif ($env{'form.action'} eq 'enrollstudent' && $permission->{'enrl'}) {
 2796:         my @search = ('srchterm','srchby','srchin','srchtype','srchdomain');
 2797:         my ($jsback,$elements) = &Apache::loncreateuser::crumb_utilities();
 2798:         my $jscript = '<script type="text/javascript">'.$jsback.'</script>';
 2799: 	&Apache::loncreateuser::restore_prev_selections();
 2800: 	my $srch;
 2801: 	foreach my $item (@search) {
 2802: 	    $srch->{$item} = $env{'form.'.$item};
 2803: 	}
 2804: 
 2805:         if ($env{'form.state'} eq 'gotusername') {
 2806:             if ($env{'form.phase'} eq 'get_user_info') {
 2807:                 my ($currstate,$response,$forcenewuser,$results) =
 2808:                     &Apache::loncreateuser::user_search_result($srch);
 2809:                 if ($env{'form.currstate'} eq 'modify') {
 2810:                     $currstate = $env{'form.currstate'};
 2811:                 }
 2812:                 if ($currstate eq 'select') {
 2813:                     $r->print(&header());
 2814:                     &Apache::lonhtmlcommon::add_breadcrumb
 2815:                         ({href=>"javascript:backPage(document.usersrchform,'','')",
 2816:                           text=>"Single user search"},
 2817:                          {href=>"javascript:backPage(document.usersrchform,'get_user_info','select')",
 2818:                           text=>"Select User",});
 2819:                     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 2820:                                                                   'Course_Add_Student'));
 2821:                     &Apache::loncreateuser::print_user_selection_page($r,
 2822:                         $response,$srch,$results,'enrollstudent',\@search);
 2823:                 } elsif ($currstate eq 'modify') {
 2824:                     my ($ccuname,$ccdomain);
 2825:                     if (($srch->{'srchby'} eq 'uname') &&
 2826:                         ($srch->{'srchtype'} eq 'exact')) {
 2827:                         $ccuname = $srch->{'srchterm'};
 2828:                         $ccdomain= $srch->{'srchdomain'};
 2829:                     } else {
 2830:                         my @matchedunames = keys(%{$results});
 2831:                         ($ccuname,$ccdomain) = split(/:/,$matchedunames[0]);
 2832:                     }
 2833:                     $ccuname =&LONCAPA::clean_username($ccuname);
 2834:                     $ccdomain=&LONCAPA::clean_domain($ccdomain);
 2835:                     &print_enroll_single_student_form($r,$jscript,$ccuname,
 2836:                                                       $ccdomain,$srch,$response);
 2837:                 } elsif ($currstate eq 'query') {
 2838:                     $r->print(&header($jscript));
 2839:                     &Apache::lonhtmlcommon::add_breadcrumb
 2840:                         ({href=>"javascript:backPage(document.studentform,'','')",
 2841:                           text=>"Single user search"});
 2842:                     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 2843:                                                       'Course_Add_Student'));
 2844:                     &Apache::loncreateuser::print_user_query_page($r,'enrollstudent');
 2845:                 } else {
 2846:                     &get_student_username_domain_form($r,$elements,$response,
 2847:                                                       $srch,$forcenewuser);
 2848:                 }
 2849:             } elsif ($env{'form.phase'} eq 'userpicked') {
 2850:                 my $ccuname = &LONCAPA::clean_username($env{'form.seluname'});
 2851:                 my $ccdomain = &LONCAPA::clean_domain($env{'form.seludom'});
 2852:                 &print_enroll_single_student_form($r,$jscript,$ccuname,
 2853:                                                   $ccdomain,$srch);
 2854:             } else {
 2855:                 &get_student_username_domain_form($r,$elements,undef,$srch);
 2856:             }
 2857:         } elsif ($env{'form.state'} eq 'enrolling') {
 2858:             $r->print(&header($jscript));
 2859:             &Apache::lonhtmlcommon::add_breadcrumb
 2860:                 ({href=>"javascript:backPage(document.studentform,'','')",
 2861:                   text=>"Single user search"});
 2862:             if ($env{'form.prevphase'} eq 'userpicked') {
 2863:                &Apache::lonhtmlcommon::add_breadcrumb
 2864:                ({href=>"javascript:backPage(document.studentform,'get_user_info','select')",
 2865:                  text=>"Select user",});
 2866:             }
 2867:             &Apache::lonhtmlcommon::add_breadcrumb
 2868:                 ({href=>"javascript:backPage(document.studentform,'$env{'form.prevphase'}','modify')",
 2869:                   text=>"Set enrollment",},
 2870:                  {href=>"javascript:backPage(document.studentform,$env{'form.phase'},'')",
 2871:                  text=>"Result",});
 2872:             $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
 2873:                                                       'Course_Add_Student'));
 2874:             &enroll_single_student($r,\@search);
 2875:         } else {
 2876:             &get_student_username_domain_form($r,$elements,undef,$srch);
 2877:         }
 2878:     } elsif ($env{'form.action'} eq 'classlist' && $permission->{'view'}) {
 2879:         $r->print(&header());
 2880:         &Apache::lonhtmlcommon::add_breadcrumb
 2881:             ({href=>'/adm/dropadd?action=classlist',
 2882:               text=>"View Classlist"});
 2883:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('View Classlist',
 2884: 						      'Course_View_Class_List'));
 2885:         if (! exists($env{'form.state'})) {
 2886:             &print_html_classlist($r,undef,$permission);
 2887:         } elsif ($env{'form.state'} eq 'csv') {
 2888:             &print_html_classlist($r,'csv',$permission);
 2889:         } elsif ($env{'form.state'} eq 'excel') {
 2890:             &print_html_classlist($r,'excel',$permission);
 2891:         } else {
 2892:             &print_html_classlist($r,undef,$permission);
 2893:         }
 2894:     } elsif ($env{'form.action'} eq 'modifystudent' && $permission->{'enrl'}) {
 2895:         $r->print(&header());
 2896:         &Apache::lonhtmlcommon::add_breadcrumb
 2897:             ({href=>'/adm/dropadd?action=modifystudent',
 2898:               text=>"Modify Student Data"});
 2899:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Modify Student Data',
 2900: 						      'Course_Modify_Student_Data'));
 2901:         if (! exists($env{'form.state'})) {
 2902:             &print_html_classlist($r,undef,$permission);
 2903:         } elsif ($env{'form.state'} eq 'selected') {
 2904:             &print_modify_student_form($r);
 2905:         } elsif ($env{'form.state'} eq 'done') {
 2906:             &modify_single_student($r);
 2907:         } else {
 2908:             &print_html_classlist($r,undef,$permission);
 2909:         }        
 2910:     } else {
 2911:         # We should not end up here, but I guess it is possible
 2912:         &Apache::lonnet::logthis("Undetermined state in londropadd.pm.  ".
 2913:                                  "form.action = ".$env{'form.action'}.
 2914:                                  "Someone should fix this.");
 2915:         $r->print(&header());
 2916:         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
 2917:         &print_main_menu($r,$permission);
 2918:     }
 2919:     #
 2920:     # Finish up
 2921:     $r->print('</form>'.&Apache::loncommon::end_page());
 2922:     return OK;
 2923: }
 2924: 
 2925: 
 2926: 1;
 2927: __END__
 2928: 
 2929: =pod
 2930: 
 2931: =back
 2932: 
 2933: =cut

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>