loncom/interface/londropadd.pm - diff

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Diff for /loncom/interface/Attic/londropadd.pm between versions 1.36 and 1.171

-version 1.36, 2002/05/01 20:15:41
+version 1.171, 2007/10/09 17:33:57
  Line 25
  #
  # http://www.lon-capa.org/
  #
- # (Handler to set parameters for assessments
  #
- # (Handler to resolve ambiguous file locations
+ ###############################################################
- #
+ ##############################################################
- # (TeX Content Handler
- #
- # YEAR=2000
- # 05/29/00,05/30,10/11 Gerd Kortemeyer)
- #
- # 10/11,10/12,10/16 Gerd Kortemeyer)
- #
- # 11/20,11/21,11/22,11/23,11/24,11/25,11/27,11/28,
- # 12/08,12/12 Gerd Kortemeyer)
- #
- # 12/26,12/27,12/28,
- # YEAR=2001
- # 01/01/01,01/15,02/10,02/13,02/14,02/22 Gerd Kortemeyer
- # 8/6 Scott Harrison
- # Guy Albertelli
- # 9/25 Gerd Kortemeyer
- # 12/19 Guy Albertelli
- # YEAR=2002
- # 1/4 Gerd Kortemeyer
  package Apache::londropadd;
  use strict;
- use Apache::lonnet();
+ use Apache::lonnet;
  use Apache::loncommon();
+ use Apache::lonhtmlcommon();
  use Apache::Constants qw(:common :http REDIRECT);
+ use Spreadsheet::WriteExcel;
+ use Apache::lonstathelpers();
+ use Apache::lonlocal;
+ use Apache::longroup;
+ use LONCAPA();
- # ================================================================ Print header
+ ###############################################################
+ ###############################################################
  sub header {
+     my ($jscript,$loaditems) = @_;
+     my $start_page;
+     if (ref($loaditems) eq 'HASH') {
+         $start_page=&Apache::loncommon::start_page('Enrollment Manager',$jscript,{'add_entries' => $loaditems,});
+     } else {
+         $start_page=&Apache::loncommon::start_page('Enrollment Manager',$jscript);
+     }
      return(<<ENDHEAD);
- <html>
+ $start_page
- <head>
+ <form method="post" enctype="multipart/form-data"
- <title>LON-CAPA Student Drop/Add</title>
+       action="/adm/dropadd" name="studentform">
- </head>
- <body bgcolor="#FFFFFF">
- <img align=right src=/adm/lonIcons/lonlogos.gif>
- <h1>Drop/Add Students</h1>
- <form method="post" enctype="multipart/form-data"
- action="/adm/dropadd" name="studentform">
- <h2>Course: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}</h2>
  ENDHEAD
  }
- # =========== Drop student from all sections of a course, except optional $csec
+ ###############################################################
+ ###############################################################
+ # Drop student from all sections of a course, except optional $csec
  sub modifystudent {
      my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
      # if $csec is undefined, drop the student from all the courses matching
      # this one.  If $csec is defined, drop them from all other sections of
      # this course and add them to section $csec
-     $courseid=~s/\_/\//g;
+     my $cdom = $env{'course.'.$courseid.'.domain'};
-     $courseid=~s/^(\w)/\/$1/;
+     my $cnum = $env{'course.'.$courseid.'.num'};
      my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
      my ($tmp) = keys(%roles);
      # Bail out if we were unable to get the students roles
- Line 88  sub modifystudent {
+ Line 76  sub modifystudent {
      # Go through the roles looking for enrollment in this course
      my $result = '';
      foreach my $course (keys(%roles)) {
-         if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
+         if ($course=~m{^/\Q$cdom\E/\Q$cnum\E(?:\/)*(?:\s+)*(\w+)*\_st$}) {
              # We are in this course
              my $section=$1;
-             $section='' if ($course eq $courseid.'_st');
+             $section='' if ($course eq "/$cdom/$cnum".'_st');
-             if ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
+             if (defined($csec) && $section eq $csec) {
+                 $result .= 'ok:';
+             } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
                  my (undef,$end,$start)=split(/\_/,$roles{$course});
                  my $now=time;
+                 # if this is an active role
                  if (!($start && ($now<$start)) || !($end && ($now>$end))) {
                      my $reply=&Apache::lonnet::modifystudent
-                         ($udom,$unam,'','','','','','','',
+                         # dom  name  id mode pass     f     m     l     g
+                         ($udom,$unam,'',  '',  '',undef,undef,undef,undef,
                           $section,time,undef,undef,$desiredhost);
                      $result .= $reply.':';
                  }
- Line 105  sub modifystudent {
+ Line 97  sub modifystudent {
          }
      }
      if ($result eq '') {
-         $result eq 'Unable to find section for this student';
+         $result = 'Unable to find section for this student';
-     } elsif ($result =~ /^(ok:)+$/) {
+     } else {
-         $result eq 'ok';
+         $result =~ s/(ok:)+/ok/g;
      }
      return $result;
  }
- # ============ build a domain and server selection form
+ ###############################################################
+ ###############################################################
+ # build a domain and server selection form
  sub domain_form {
      my ($defdom) = @_;
      # Set up domain and server selection forms
      #
      # Get the domains
-     my @domains = &Apache::loncommon::get_domains();
+     my @domains = &Apache::lonnet::all_domains();
      # build up the menu information to be passed to
      # &Apache::loncommon::linked_select_forms
      my %select_menus;
- Line 129  sub domain_form {
+ Line 123  sub domain_form {
          $select_menus{$dom}->{'default'}= 'default';
          $select_menus{$dom}->{'select2'}->{'default'} = 'default';
          # Now build up the other items in the second menu
-         my %servers = &Apache::loncommon::get_home_servers($dom);
+         my %servers = &Apache::lonnet::get_servers($dom,'library');
          foreach my $server (keys(%servers)) {
              $select_menus{$dom}->{'select2'}->{$server}
                                              = "$server $servers{$server}";
- Line 141  sub domain_form {
+ Line 135  sub domain_form {
      return $result;
  }
- # ============================================================== Menu Phase One
+ ###############################################################
- sub menu_phase_one {
+ ###############################################################
-     my $r=shift;
+ #  Menu Phase One
-     my $upfile_select=&Apache::loncommon::upfile_select_html();
+ sub print_main_menu {
-     $r->print(<<ENDUPFORM);
+     my ($r,$permission)=@_;
- <input type=hidden name=phase value=two>
+     #
- <hr>
+     my $cid =$env{'request.course.id'};
- <h3>Upload a courselist</h3>
+     my $cdom=$env{'course.'.$cid.'.domain'};
- $upfile_select
+     my $cnum=$env{'course.'.$cid.'.num'};
- <p><input type=submit name=fileupload value="Upload Courselist">
+     my @menu =
- <hr>
+         (
- <h3>Enroll a single student</h3>
+           { text => 'Upload a class list',
- <p><input type=submit name=enroll value="Enroll Student">
+             help => 'Course_Create_Class_List',
- <hr>
+             action => 'upload',
- <h3>Drop students</h3>
+             permission => $permission->{'enrl'},
- <p><input type=submit name=drop value="Selection List">
+             },
- ENDUPFORM
+           { text => 'Enroll a single student',
+             help => 'Course_Add_Student',
+             action => 'enrollstudent',
+             permission => $permission->{'enrl'},
+             },
+           { text => 'Modify student data',
+             help => 'Course_Modify_Student_Data',
+             action => 'modifystudent',
+             permission => $permission->{'enrl'},
+             },
+           { text => 'View Class List',
+             help => 'Course_View_Class_List',
+             action => 'classlist',
+             permission => $permission->{'view'},
+             },
+           { text => 'Drop Students',
+             help => 'Course_Drop_Student',
+             action => 'drop',
+             permission => $permission->{'enrl'},
+             },
+           { text => 'Automated Enrollment Manager',
+             permission => (&Apache::lonnet::auto_run($cnum,$cdom)
+ 			   && $permission->{'enrl'}),
+             url  => '/adm/populate',
+             },
+           { text => 'Create a new group',
+             help => 'Course_Create_Group',
+             permission => $permission->{'grp_manage'},
+             url => '/adm/coursegroups?refpage=enrl&amp;action=create',
+             },
+           { text => 'Modify an existing group',
+             help => 'Course_Modify_Group',
+             permission => $permission->{'grp_manage'},
+             url => '/adm/coursegroups?refpage=enrl&amp;action=modify',
+             },
+           { text => 'Delete an existing group',
+             help => 'Course_Delete_Group',
+             permission => $permission->{'grp_manage'},
+             url => '/adm/coursegroups?refpage=enrl&amp;action=delete',
+             },
+           { text => 'Re-enable a deleted group',
+             help => 'Course_Reenable_Group',
+             permission => $permission->{'grp_manage'},
+             url => '/adm/coursegroups?refpage=enrl&amp;action=reenable',
+             },
+           { text => 'Enter an existing group',
+             help => 'Course_Display_Group',
+             permission => $permission->{'grp_view'},
+             url => '/adm/coursegroups?refpage=enrl&amp;action=view',
+             },
+           );
+     my $menu_html = '';
+     foreach my $menu_item (@menu) {
+         next if (! $menu_item->{'permission'});
+         $menu_html.='<p>';
+         $menu_html.='<font size="+1">';
+         if (exists($menu_item->{'url'})) {
+             $menu_html.=qq{<a href="$menu_item->{'url'}">};
+         } else {
+             $menu_html.=
+                 qq{<a href="/adm/dropadd?action=$menu_item->{'action'}">};
+         }
+         $menu_html.= &mt($menu_item->{'text'}).'</a></font>';
+         if (exists($menu_item->{'help'})) {
+             $menu_html.=
+                 &Apache::loncommon::help_open_topic($menu_item->{'help'});
+         }
+         $menu_html.='</p>'.$/;
+     }
+     $r->print($menu_html);
+     return;
+ }
+ ###############################################################
+ ###############################################################
+ sub hidden_input {
+     my ($name,$value) = @_;
+     return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'."\n";
  }
- sub phase_two_header {
+ sub print_upload_manager_header {
      my ($r,$datatoken,$distotal,$krbdefdom)=@_;
      my $javascript;
-     if ($ENV{'form.upfile_associate'} eq 'reverse') {
+     #
- 	$javascript=&phase_two_javascript_reverse_associate();
+     if (! exists($env{'form.upfile_associate'})) {
+         $env{'form.upfile_associate'} = 'forward';
+     }
+     if ($env{'form.associate'} eq 'Reverse Association') {
+         if ( $env{'form.upfile_associate'} ne 'reverse' ) {
+             $env{'form.upfile_associate'} = 'reverse';
+         } else {
+             $env{'form.upfile_associate'} = 'forward';
+         }
+     }
+     if ($env{'form.upfile_associate'} eq 'reverse') {
+ 	$javascript=&upload_manager_javascript_reverse_associate();
      } else {
- 	$javascript=&phase_two_javascript_forward_associate();
+ 	$javascript=&upload_manager_javascript_forward_associate();
      }
-     my $javascript_validations=&javascript_validations($krbdefdom);
+     #
-     $r->print(<<ENDPICK);
+     # Deal with restored settings
- <hr>
+     my $password_choice = '';
- <h3>Identify fields</h3>
+     if (exists($env{'form.ipwd_choice'}) &&
- Total number of records found in file: $distotal <hr />
+         $env{'form.ipwd_choice'} ne '') {
- Enter as many fields as you can. The system will inform you and bring you back
+         # If a column was specified for password, assume it is for an
- to this page if the data selected is insufficient to run your class.<hr />
+         # internal password.  This is a bug waiting to be filed (could be
- <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
+         # local or krb auth instead of internal) but I do not have the
- <input type="hidden" name="associate"  value="" />
+         # time to mess around with this now.
- <input type="hidden" name="phase"      value="three" />
+         $password_choice = 'int';
- <input type="hidden" name="datatoken"  value="$datatoken" />
+     }
- <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
+     #
- <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
+     my $javascript_validations =
- <input type="hidden" name="upfile_associate"
+         &javascript_validations('auth',$krbdefdom,$password_choice,undef,
-                                        value="$ENV{'form.upfile_associate'}" />
+                                 $env{'request.role.domain'});
- <hr />
+     my $checked=(($env{'form.noFirstLine'})?' checked="checked" ':'');
- <script type="text/javascript" language="Javascript">
+     $r->print('<h3>'.&mt('Uploading Class List')."</h3>\n".
- $javascript
+               "<hr>\n".
- $javascript_validations
+               '<h3>'.&mt('Identify fields')."</h3>\n");
- </script>
+     $r->print("<p>\n".
- ENDPICK
+               &mt('Total number of records found in file: [_1].',$distotal).
+               "\n".
+               "</p><hr>\n");
+     $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");
+     $r->print(&hidden_input('action','upload').
+               &hidden_input('state','got_file').
+               &hidden_input('associate','').
+               &hidden_input('datatoken',$datatoken).
+               &hidden_input('fileupload',$env{'form.fileupload'}).
+               &hidden_input('upfiletype',$env{'form.upfiletype'}).
+               &hidden_input('upfile_associate',$env{'form.upfile_associate'}));
+     $r->print('<input type="button" value="Reverse Association" '.
+               'name="'.&mt('Reverse Association').'" '.
+               'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
+     $r->print('<label><input type="checkbox" name="noFirstLine"'.$checked.'/>'.
+               &mt('Ignore First Line').'</label>');
+     $r->print("<hr />\n".
+               '<script type="text/javascript" language="Javascript">'."\n".
+               $javascript."\n".$javascript_validations.'</script>');
  }
+ ###############################################################
+ ###############################################################
  sub javascript_validations {
-     my ($krbdefdom)=@_;
+     my ($mode,$krbdefdom,$curr_authtype,$curr_authfield,$domain)=@_;
-     my %param = ( formname => 'studentform',
+     my $authheader;
-                   kerb_def_dom => $krbdefdom );
+     if ($mode eq 'auth') {
-     my $authheader = &Apache::loncommon::authform_header(%param);
+         my %param = ( formname => 'studentform',
-     return (<<ENDPICK);
+                       kerb_def_dom => $krbdefdom,
- function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec) {
+                       curr_authtype => $curr_authtype);
+         $authheader = &Apache::loncommon::authform_header(%param);
+     } elsif ($mode eq 'createcourse') {
+         my %param = ( formname => 'ccrs',
+                       kerb_def_dom => $krbdefdom,
+                       curr_authtype => $curr_authtype );
+         $authheader = &Apache::loncommon::authform_header(%param);
+     } elsif ($mode eq 'modifycourse') {
+         my %param = ( formname => 'cmod',
+                   kerb_def_dom => $krbdefdom,
+                   mode => 'modifycourse',
+                   curr_authtype => $curr_authtype,
+                   curr_autharg => $curr_authfield );
+         $authheader = &Apache::loncommon::authform_header(%param);
+     }
+     my %alert = &Apache::lonlocal::texthash
+         (username => 'You need to specify the username field.',
+          authen   => 'You must choose an authentication type.',
+          krb      => 'You need to specify the Kerberos domain.',
+          ipass    => 'You need to specify the initial password.',
+          name     => 'The optional name field was not specified.',
+          snum     => 'The optional student number field was not specified.',
+          section  => 'The optional section field was not specified.',
+          email    => 'The optional email address field was not specified.',
+          continue => 'Continue enrollment?',
+          );
+ #    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
+     my $function_name =(<<END);
+ function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
+ END
+     my ($authnum,%can_assign) =  &Apache::loncommon::get_assignable_auth($domain);
+     my $auth_checks;
+     if ($mode eq 'createcourse') {
+         $auth_checks .= (<<END);
+     if (vf.autoadds[0].checked == true) {
+         if (current.radiovalue == null || current.radiovalue == 'nochange') {
+             alert('$alert{'authen'}');
+             return;
+         }
+     }
+ END
+     } else {
+         $auth_checks .= (<<END);
      var foundatype=0;
-     var message='';
      if (founduname==0) {
- 	alert('You need to specify the username field');
+         alert('$alert{'username'}');
          return;
      }
-     if (current.radiovalue == null || current.radiovalue == 'nochange') {
+ END
+         if ($authnum > 1) {
+             $auth_checks .= (<<END);
+     // alert('current.radiovalue = '+current.radiovalue);
+     if (current.radiovalue == null || current.radiovalue == '' || current.radiovalue == 'nochange') {
          // They did not check any of the login radiobuttons.
-         alert('You must choose an authentication type');
+         alert('$alert{'authen'}');
          return;
      }
+ END
+         }
+     }
+     if ($mode eq 'createcourse') {
+         $auth_checks .= "
+     if ( (vf.autoadds[0].checked == true) &&
+          (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') ) {
+ ";
+     } elsif ($mode eq 'modifycourse') {
+         $auth_checks .= "
+     if (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') {
+ ";
+     }
+     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
+         $auth_checks .= (<<END);
+         var alertmsg = '';
+         switch (current.radiovalue) {
+             case 'krb':
+                 alertmsg = '$alert{'krb'}';
+                 break;
+             default:
+                 alertmsg = '';
+         }
+         if (alertmsg != '') {
+             alert(alertmsg);
+             return;
+         }
+     }
+ END
+     } else {
+         $auth_checks .= (<<END);
      foundatype=1;
      if (current.argfield == null || current.argfield == '') {
          var alertmsg = '';
          switch (current.value) {
              case 'krb':
-                 alertmsg = 'You need to specify the Kerberos domain';
+                 alertmsg = '$alert{'krb'}';
                  break;
              case 'loc':
              case 'fsys':
-                 alertmsg = 'You need to specify the initial password';
+                 alertmsg = '$alert{'ipass'}';
                  break;
              case 'fsys':
                  alertmsg = '';
- Line 231  function verify_message (vf,founduname,f
+ Line 413  function verify_message (vf,founduname,f
              return;
          }
      }
+ END
-     if (foundname==0) { message='No name fields specified. '; }
+     }
-     if (foundid==0) { message+='No ID or student number field specified. '; }
+     my $section_checks;
-     if (foundsec==0) { message+='No section or group field specified. '; }
+     my $optional_checks = '';
-     if (vf.startdate.value=='') {
+     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
- 	message+='No starting date set. ';
+         $optional_checks = (<<END);
-     }
+     vf.submit();
-     if (vf.enddate.value=='') {
+ }
-         message+='No ending date set. ';
+ END
-     }
+     } else {
-     if ((vf.enddate.value!='') && (vf.startdate.value!='')) {
+         $section_checks = &section_check_js();
-        if (Math.round(vf.enddate.value)<Math.round(vf.startdate.value)) {
+         $optional_checks = (<<END);
-           alert('Ending date is before starting date');
+     var message='';
-           return;
+     if (foundname==0) {
-        }
+         message='$alert{'name'}';
+     }
+     if (foundid==0) {
+         if (message!='') {
+             message+='\\n';
+         }
+         message+='$alert{'snum'}';
+     }
+     if (foundsec==0) {
+         if (message!='') {
+             message+='\\n';
+         }
+         message+='$alert{'section'}';
+     }
+     if (foundemail==0) {
+         if (message!='') {
+             message+='\\n';
+         }
+         message+='$alert{'email'}';
      }
      if (message!='') {
-        message+='Continue enrollment?';
+         message+= '\\n$alert{'continue'}';
-        if (confirm(message)) {
+         if (confirm(message)) {
- 	  pclose();
+             vf.state.value='enrolling';
- 	  vf.submit();
+             vf.submit();
-        }
+         }
      } else {
-       pclose();
+         vf.state.value='enrolling';
-       vf.submit();
+         vf.submit();
      }
  }
+ END
-     function pclose() {
-         parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
-                  "height=350,width=350,scrollbars=no,menubar=no");
-         parmwin.close();
      }
+     my $result = $function_name;
-     function pjump(type,dis,value,marker,ret,call) {
+     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
-         parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
+         $result .= $auth_checks;
-                  +"&value="+escape(value)+"&marker="+escape(marker)
+     }
-                  +"&return="+escape(ret)
+     $result .= $optional_checks."\n".$section_checks;
-                  +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
+     if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
-                  "height=350,width=350,scrollbars=no,menubar=no");
+         $result .= $authheader;
      }
+     return $result;
-     function dateset() {
-         if (document.studentform.pres_marker.value=='end') {
-            document.studentform.enddate.value=
- 	       document.studentform.pres_value.value;
-         }
-         if (document.studentform.pres_marker.value=='start') {
-            document.studentform.startdate.value=
- 	       document.studentform.pres_value.value;
-         }
-         pclose();
-     }
- $authheader
- ENDPICK
  }
- sub phase_two_javascript_forward_associate {
+ ###############################################################
+ ###############################################################
+ sub upload_manager_javascript_forward_associate {
      return(<<ENDPICK);
- function verify(vf) {
+ function verify(vf,sec_caller) {
      var founduname=0;
      var foundpwd=0;
      var foundname=0;
      var foundid=0;
      var foundsec=0;
+     var foundemail=0;
      var tw;
      for (i=0;i<=vf.nfields.value;i++) {
          tw=eval('vf.f'+i+'.selectedIndex');
- Line 308  function verify(vf) {
+ Line 490  function verify(vf) {
          if (tw==7) { foundid=1; }
          if (tw==8) { foundsec=1; }
          if (tw==9) { foundpwd=1; }
+         if (tw==10) { foundemail=1; }
      }
-     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
+     verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
  }
+ //
+ // vf = this.form
+ // tf = column number
+ //
+ // values of nw
+ //
+ // 0 = none
+ // 1 = username
+ // 2 = names (lastname, firstnames)
+ // 3 = fname (firstname)
+ // 4 = mname (middlename)
+ // 5 = lname (lastname)
+ // 6 = gen   (generation)
+ // 7 = id
+ // 8 = section
+ // 9 = ipwd  (password)
+ // 10 = email address
  function flip(vf,tf) {
     var nw=eval('vf.f'+tf+'.selectedIndex');
     var i;
+    // make sure no other columns are labeled the same as this one
     for (i=0;i<=vf.nfields.value;i++) {
        if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
            eval('vf.f'+i+'.selectedIndex=0;')
        }
     }
-    if (tf==1 && nw!=0) {
+    // If we set this to 'lastname, firstnames', clear out all the ones
-       for (i=2;i<=5;i++) {
+    // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
-          eval('vf.f'+i+'.selectedIndex=0;')
-       }
-    }
     if (nw==2) {
        for (i=0;i<=vf.nfields.value;i++) {
           if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
- Line 333  function flip(vf,tf) {
+ Line 532  function flip(vf,tf) {
           }
        }
     }
+    // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
+    // clear out any that are set to 'lastname, firstnames' (2)
     if ((nw>=3) && (nw<=6)) {
        for (i=0;i<=vf.nfields.value;i++) {
           if (eval('vf.f'+i+'.selectedIndex')==2) {
- Line 340  function flip(vf,tf) {
+ Line 541  function flip(vf,tf) {
           }
        }
     }
+    // If we set the password, make the password form below correspond to
+    // the new value.
     if (nw==9) {
         changed_radio('int',document.studentform);
         set_auth_radio_buttons('int',document.studentform);
- Line 361  function clearpwd(vf) {
+ Line 564  function clearpwd(vf) {
  ENDPICK
  }
- sub phase_two_javascript_reverse_associate {
+ ###############################################################
+ ###############################################################
+ sub upload_manager_javascript_reverse_associate {
      return(<<ENDPICK);
- function verify(vf) {
+ function verify(vf,sec_caller) {
      var founduname=0;
      var foundpwd=0;
      var foundname=0;
- Line 414  function clearpwd(vf) {
+ Line 619  function clearpwd(vf) {
  ENDPICK
  }
- sub phase_two_end {
+ ###############################################################
+ ###############################################################
+ sub print_upload_manager_footer {
      my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
-     my %param = ( formname => 'document.studentform');
+     my ($krbdef,$krbdefdom) =
+         &Apache::loncommon::get_kerberos_defaults($defdom);
+     my %param = ( formname => 'document.studentform',
+                   kerb_def_dom => $krbdefdom,
+                   kerb_def_auth => $krbdef
+                   );
+     if (exists($env{'form.ipwd_choice'}) &&
+         defined($env{'form.ipwd_choice'}) &&
+         $env{'form.ipwd_choice'} ne '') {
+         $param{'curr_authtype'} = 'int';
+     }
      my $krbform = &Apache::loncommon::authform_kerberos(%param);
      my $intform = &Apache::loncommon::authform_internal(%param);
      my $locform = &Apache::loncommon::authform_local(%param);
      my $domform = &domain_form($defdom);
-     $r->print(<<ENDPICK);
+     my $date_table = &date_setting_table();
- </table>
+     my $Str = "</table>\n";
- <input type=hidden name=nfields value=$i>
+     $Str .= &hidden_input('nfields',$i);
- <input type=hidden name=keyfields value="$keyfields">
+     $Str .= &hidden_input('keyfields',$keyfields);
- <h3>Login Type</h3>
+     $Str .= '<h3>'.&mt('Login Type')."</h3>\n";
- <p>Note: this will not take effect if the user already exists</p>
+     $Str .= "<p>\n".
- <p>
+         &mt('Note: this will not take effect if the user already exists').
- $krbform
+ 	&Apache::loncommon::help_open_topic('Auth_Options').
- </p>
+         "</p><p>\n";
- <p>
+     $Str .= $krbform."\n</p><p>\n".
- $intform
+         $intform."\n</p><p>\n".
- </p>
+         $locform."\n</p>\n";
- <p>
+     $Str .= '<h3>'.&mt('LON-CAPA Domain for Students')."</h3>\n";
- $locform
+     $Str .= "<p>\n".&mt('LON-CAPA domain: [_1]',$domform)."\n</p>\n";
- </p>
+     $Str .= "<h3>".&mt('Starting and Ending Dates')."</h3>\n";
- <h3>LON-CAPA Domain for Students</h3>
+     $Str .= "<p>\n".$date_table."</p>\n";
- LON-CAPA domain: $domform <p>
+     $Str .= "<h3>".&mt('Full Update')."</h3>\n";
- <h3>Starting and Ending Dates</h3>
+     $Str .= '<label><input type="checkbox" name="fullup" value="yes">'.
- <input type="hidden" value=''          name="pres_value"  >
+         ' '.&mt('Full update (also print list of users not enrolled anymore)').
- <input type="hidden" value=''          name="pres_type"   >
+         "</label></p>\n";
- <input type="hidden" value=''          name="pres_marker" >
+     $Str .= "<h3>".&mt('Student Number')."</h3>\n";
- <input type="hidden" value='$today'    name="startdate"   >
+     $Str .= "<p>\n".'<label><input type="checkbox" name="forceid" value="yes">';
- <input type="hidden" value='$halfyear' name="enddate"     >
+     $Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
- <a
+                 'of Conflicting IDs (only do if you know what you are doing)').
-  href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
+                 "</label>\n</p><p>\n";
- >Set Starting Date</a><p>
+     $Str .= '<input type="button"'.
+               'onClick="javascript:verify(this.form,this.form.csec)" '.
- <a
+         'value="Update Class List" />'."<br />\n";
-  href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
+     $Str .= &mt('Note: for large courses, this operation may be time '.
- >Set Ending Date</a><p>
+                 'consuming');
- <h3>Full Update</h3>
+     $r->print($Str);
- <input type=checkbox name=fullup value=yes> Full update
+     return;
- (also print list of users not enrolled anymore)<p>
+ }
- <h3>ID/Student Number</h3>
- <input type=checkbox name=forceid value=yes>
+ ###############################################################
- Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
+ ###############################################################
- (only do if you know what you are doing)<p>
+ sub print_upload_manager_form {
- <input type="button" onClick="javascript:verify(this.form)" value="Update Courselist" /><br />
- Note: for large courses, this operation might be time consuming.
- ENDPICK
- }
- # ======================================================= Menu Phase Two Upload
- sub menu_phase_two_upload {
      my $r=shift;
+     my $firstLine;
      my $datatoken;
-     if (!$ENV{'form.datatoken'}) {
+     if (!$env{'form.datatoken'}) {
-       $datatoken=&Apache::loncommon::upfile_store($r);
+         $datatoken=&Apache::loncommon::upfile_store($r);
      } else {
-       $datatoken=$ENV{'form.datatoken'};
+         $datatoken=$env{'form.datatoken'};
-       &Apache::loncommon::load_tmp_file($r);
+         &Apache::loncommon::load_tmp_file($r);
      }
      my @records=&Apache::loncommon::upfile_record_sep();
+     if($env{'form.noFirstLine'}){
+         $firstLine=shift(@records);
+     }
      my $total=$#records;
      my $distotal=$total+1;
-     $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
-     my $krbdefdom=$1;
-     $krbdefdom=~tr/a-z/A-Z/;
      my $today=time;
      my $halfyear=$today+15552000;
-     my $defdom=$r->dir_config('lonDefDomain');
+     #
-     &phase_two_header($r,$datatoken,$distotal,$krbdefdom);
+     # Restore memorized settings
+     &Apache::loncommon::restore_course_settings
+         ('enrollment_upload',{ 'username_choice' => 'scalar', # column settings
+                                'names_choice' => 'scalar',
+                                'fname_choice' => 'scalar',
+                                'mname_choice' => 'scalar',
+                                'lname_choice' => 'scalar',
+                                'gen_choice' => 'scalar',
+                                'id_choice' => 'scalar',
+                                'sec_choice' => 'scalar',
+                                'ipwd_choice' => 'scalar',
+                                'email_choice' => 'scalar',
+                            });
+     #
+     # Determine kerberos parameters as appropriate
+     my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     my ($krbdef,$krbdefdom) =
+         &Apache::loncommon::get_kerberos_defaults($defdom);
+     #
+     &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
      my $i;
      my $keyfields;
      if ($total>=0) {
- 	my @d=(['username','Username'],['names','Last Name, First Names'],
+         my @field=
- 	       ['fname','First Name'],['mname','Middle Names/Initials'],
+             (['username',&mt('Username'),     $env{'form.username_choice'}],
- 	       ['lname','Last Name'],['gen','Generation'],
+              ['names',&mt('Last Name, First Names'),$env{'form.names_choice'}],
- 	       ['id','ID/Student Number'],['sec','Group/Section'],
+              ['fname',&mt('First Name'),      $env{'form.fname_choice'}],
- 	       ['ipwd','Initial Password']);
+              ['mname',&mt('Middle Names/Initials'),$env{'form.mname_choice'}],
- 	if ($ENV{'form.upfile_associate'} eq 'reverse') {
+              ['lname',&mt('Last Name'),       $env{'form.lname_choice'}],
+              ['gen',  &mt('Generation'),      $env{'form.gen_choice'}],
+              ['id',   &mt('ID/Student Number'),$env{'form.id_choice'}],
+              ['sec',  &mt('Section'),          $env{'form.sec_choice'}],
+              ['ipwd', &mt('Initial Password'),$env{'form.ipwd_choice'}],
+              ['email',&mt('EMail Address'),   $env{'form.email_choice'}]);
+ 	if ($env{'form.upfile_associate'} eq 'reverse') {
  	    &Apache::loncommon::csv_print_samples($r,\@records);
- 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d);
+ 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,
- 	    foreach (@d) { $keyfields.=$_->[0].','; }
+                                                           \@field);
+ 	    foreach (@field) {
+                 $keyfields.=$_->[0].',';
+             }
  	    chop($keyfields);
  	} else {
- 	    unshift(@d,['none','']);
+ 	    unshift(@field,['none','']);
- 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d);
+ 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
+                                                             \@field);
  	    my %sone=&Apache::loncommon::record_sep($records[0]);
  	    $keyfields=join(',',sort(keys(%sone)));
  	}
      }
-     &phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear);
+     &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
  }
- # ======================================================= Enroll single student
+ ###############################################################
+ ###############################################################
  sub enroll_single_student {
-     my $r=shift;
+     my ($r,$srcharray) = @_;
-     $r->print('<h3>Enrolling Student</h3>');
+     # Remove non alphanumeric values from section
-     $r->print('<p>Enrolling '.$ENV{'form.cuname'}." in domain ".
+     $env{'form.csec'}=~s/\W//g;
-               $ENV{'form.lcdomain'}.'</p>');
+     #
-     if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
+     # We do the dates first because the action of making them the defaul
-         ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
+     # in the course is entirely separate from the action of enrolling the
+     # student.  Also, a failure in setting the dates as default is not fatal
+     # to the process of enrolling / modifying a student.
+     my ($startdate,$enddate) = &get_dates_from_form();
+     if ($env{'form.makedatesdefault'}) {
+         $r->print(&make_dates_default($startdate,$enddate));
+     }
+     $r->print('<h3>'.&mt('Enrolling Student').'</h3>');
+     $r->print('<p>'.&mt('Enrolling [_1] : [_2]',$env{'form.cuname'},
+ 			$env{'form.lcdomain'}).'</p>');
+     if (($env{'form.cuname'})
+ 	&& ($env{'form.cuname'}
+ 	    eq &LONCAPA::clean_username($env{'form.cuname'}))
+ 	&& ($env{'form.lcdomain'})
+ 	&& ($env{'form.lcdomain'}
+ 	    eq &LONCAPA::clean_domain($env{'form.lcdomain'}))) {
          # Deal with home server selection
-         my $domain=$ENV{'form.lcdomain'};
+         my $domain=$env{'form.lcdomain'};
-         my $desiredhost = $ENV{'form.lcserver'};
+         my $desiredhost = $env{'form.lcserver'};
          if (lc($desiredhost) eq 'default') {
              $desiredhost = undef;
          } else {
-             my %home_servers = &Apache::loncommon::get_home_servers($domain);
+             my %home_servers =&Apache::lonnet::get_servers($domain,'library');
              if (! exists($home_servers{$desiredhost})) {
-                 $r->print('<font color="#ff0000">Error:</font>'.
+                 $r->print('<font color="#ff0000">'.&mt('Error').':</font>'.
-                           'Invalid home server specified');
+                           &mt('Invalid home server specified'));
                  return;
              }
          }
-         $r->print(" with server $desiredhost :") if (defined($desiredhost));
+         $r->print(" ".&mt('with server')." $desiredhost :") if (defined($desiredhost));
          # End of home server selection logic
  	my $amode='';
          my $genpwd='';
-         if ($ENV{'form.login'} eq 'krb') {
+         if ($env{'form.login'} eq 'krb') {
-            $amode='krb4';
+            $amode='krb';
-            $genpwd=$ENV{'form.krbarg'};
+ 	   $amode.=$env{'form.krbver'};
-         } elsif ($ENV{'form.login'} eq 'int') {
+            $genpwd=$env{'form.krbarg'};
+         } elsif ($env{'form.login'} eq 'int') {
             $amode='internal';
-            $genpwd=$ENV{'form.intarg'};
+            $genpwd=$env{'form.intarg'};
-         }  elsif ($ENV{'form.login'} eq 'loc') {
+         }  elsif ($env{'form.login'} eq 'loc') {
  	    $amode='localauth';
- 	    $genpwd=$ENV{'form.locarg'};
+ 	    $genpwd=$env{'form.locarg'};
  	    if (!$genpwd) { $genpwd=" "; }
  	}
-         my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'},
+         my $home = &Apache::lonnet::homeserver($env{'form.cuname'},
-                                                    $ENV{'form.lcdomain'});
+                                                    $env{'form.lcdomain'});
          if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
-             &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
+             # Clean out any old roles the student has in this class.
-                            $ENV{'request.course.id'},$ENV{'form.csec'},
+             &modifystudent($env{'form.lcdomain'},$env{'form.cuname'},
+                            $env{'request.course.id'},$env{'form.csec'},
                              $desiredhost);
-           $r->print(&Apache::lonnet::modifystudent(
+             my $login_result = &Apache::lonnet::modifystudent
-                       $ENV{'form.lcdomain'},$ENV{'form.cuname'},
+                 ($env{'form.lcdomain'},$env{'form.cuname'},
-                       $ENV{'form.cstid'},$amode,$genpwd,
+                  $env{'form.cstid'},$amode,$genpwd,
-  	              $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
+                  $env{'form.cfirst'},$env{'form.cmiddle'},
-                       $ENV{'form.clast'},$ENV{'form.cgen'},
+                  $env{'form.clast'},$env{'form.cgen'},
-                       $ENV{'form.csec'},$ENV{'form.enddate'},
+                  $env{'form.csec'},$enddate,
-                       $ENV{'form.startdate'},$ENV{'form.forceid'},
+                  $startdate,$env{'form.forceid'},
-                     $desiredhost));
+                  $desiredhost,$env{'form.emailaddress'});
+             if ($login_result =~ /^ok/) {
+                 $r->print($login_result);
+                 $r->print("<p> ".&mt('If active, the new role will be available when the student next logs in to LON-CAPA.')."</p>");
+             } else {
+                 $r->print(&mt('unable to enroll').": ".$login_result);
+             }
  	} else {
-             $r->print('<p><font color="#ff0000">ERROR</font>&nbsp;'.
+             $r->print('<p><font color="#ff0000">'.&mt('ERROR').'</font>&nbsp;');
-                       'Invalid login mode or password.  '.
+             if ($amode =~ /^krb/) {
-                       'Unable to enroll '.$ENV{'form.cuname'}.'.</p>');
+                 $r->print(&mt('Missing Kerberos domain information.').'  ');
-         }
+             } else {
+                 $r->print(&mt('Invalid login mode or password.').'  ');
+             }
+             $r->print('<b>'.&mt('Unable to enroll').' '.$env{'form.cuname'}.'.</b></p>');
+         }
      } else {
-         $r->print('Invalid username or domain');
+         $r->print(&mt('Invalid username or domain'));
      }
+     $r->print("<p><a href='/adm/dropadd?action=enrollstudent'>".&mt("Enroll another student")."</a></p>");
+     if (ref($srcharray) eq 'ARRAY') {
+         foreach my $item (@{$srcharray},'ccuname','ccdomain') {
+             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
+         }
+     }
+     foreach my $item ('sortby','seluname','seludom') {
+         if (exists($env{'form.'.$item})) {
+             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
+         }
+     }
+     $r->print('<input type="hidden" name="phase" value="get_user_info" />'."\n".
+               '<input type="hidden" name="currstate" value="" />'."\n".
+               '<input type="hidden" name="prevphase" value="" />'."\n".
+               '<input type="hidden" name="action" value="enrollstudent" />'."\n".
+               '<input type="hidden" name="state" value="gotusername" />');
+ }
+ sub setup_date_selectors {
+     my ($starttime,$endtime,$mode) = @_;
+     if (! defined($starttime)) {
+         $starttime = time;
+         unless ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
+             if (exists($env{'course.'.$env{'request.course.id'}.
+                             '.default_enrollment_start_date'})) {
+                 $starttime = $env{'course.'.$env{'request.course.id'}.
+                                   '.default_enrollment_start_date'};
+             }
+         }
+     }
+     if (! defined($endtime)) {
+         $endtime = time+(6*30*24*60*60); # 6 months from now, approx
+         unless ($mode eq 'createcourse') {
+             if (exists($env{'course.'.$env{'request.course.id'}.
+                             '.default_enrollment_end_date'})) {
+                 $endtime = $env{'course.'.$env{'request.course.id'}.
+                                 '.default_enrollment_end_date'};
+             }
+         }
+     }
+     my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
+                                                             'startdate',
+                                                             $starttime);
+     my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
+                                                           'enddate',
+                                                           $endtime);
+     if ($mode eq 'create_enrolldates') {
+         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
+                                                             'startenroll',
+                                                             $starttime);
+         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
+                                                           'endenroll',
+                                                           $endtime);
+     }
+     if ($mode eq 'create_defaultdates') {
+         $startdateform = &Apache::lonhtmlcommon::date_setter('ccrs',
+                                                             'startaccess',
+                                                             $starttime);
+         $enddateform = &Apache::lonhtmlcommon::date_setter('ccrs',
+                                                           'endaccess',
+                                                           $endtime);
+     }
+     return ($startdateform,$enddateform);
+ }
+ sub get_dates_from_form {
+     my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
+     my $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate');
+     if ($env{'form.no_end_date'}) {
+         $enddate = 0;
+     }
+     return ($startdate,$enddate);
+ }
+ sub date_setting_table {
+     my ($starttime,$endtime,$mode) = @_;
+     my ($startform,$endform)=&setup_date_selectors($starttime,$endtime,$mode);
+     my $dateDefault = '<nobr>'.
+         '<label><input type="checkbox" name="makedatesdefault" /> '.
+         &mt('make these dates the default for future enrollment').
+ 	'</label></nobr>';
+     if ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
+         $dateDefault = '&nbsp;';
+     }
+     my $perpetual = '<nobr><label><input type="checkbox" name="no_end_date"';
+     if (defined($endtime) && $endtime == 0) {
+         $perpetual .= ' checked';
+     }
+     $perpetual.= ' /> '.&mt('no ending date').'</label></nobr>';
+     if ($mode eq 'create_enrolldates') {
+         $perpetual = '&nbsp;';
+     }
+     my $result = '';
+     $result .= "<table>\n";
+     $result .= '<tr><td align="right">'.&mt('Starting Date').'</td>'.
+         '<td>'.$startform.'</td>'.
+         '<td>'.$dateDefault.'</td>'."</tr>\n";
+     $result .= '<tr><td align="right">'.&mt('Ending Date').'</td>'.
+         '<td>'.$endform.'</td>'.
+         '<td>'.$perpetual.'</td>'."</tr>\n";
+     $result .= "</table>\n";
+     return $result;
  }
- # ======================================================= Menu Phase Two Enroll
+ sub make_dates_default {
- sub menu_phase_two_enroll {
+     my ($startdate,$enddate) = @_;
-     my $r=shift;
+     my $result = '';
-     my ($krbdefdom) = $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
+     my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-     $krbdefdom=~tr/a-z/A-Z/;
+     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
-     my $today    = time;
+     my $put_result = &Apache::lonnet::put('environment',
-     my $halfyear = $today+15552000;
+             {'default_enrollment_start_date'=>$startdate,
-     my $defdom=$r->dir_config('lonDefDomain');
+              'default_enrollment_end_date'  =>$enddate},$dom,$crs);
-     my $javascript_validations=&javascript_validations($krbdefdom);
+     if ($put_result eq 'ok') {
-     # Set up authentication forms
+         $result .= "Set default start and end dates for course<br />";
-     my %param = ( formname => 'document.studentform');
+         #
-     my $krbform = &Apache::loncommon::authform_kerberos(%param);
+         # Refresh the course environment
-     my $intform = &Apache::loncommon::authform_internal(%param);
+         &Apache::lonnet::coursedescription($env{'request.course.id'},
-     my $locform = &Apache::loncommon::authform_local(%param);
+ 					   {'freshen_cache' => 1});
-     # Set up domain selection form
+     } else {
-     my $domform = &domain_form($defdom);
+         $result .= &mt('Unable to set default dates for course').":".$put_result.
-     # Print it all out
+             '<br />';
-     $r->print(<<ENDSENROLL);
+     }
+     return $result;
+ }
+ ##
+ ## Single student enrollment routines (some of them)
+ ##
+ sub get_student_username_domain_form {
+     my ($r,$elements,$response,$srch,$forcenewuser) =  @_;
+     my $loaditems = {
+             'onload' => "javascript:setFormElements(document.studentform)",
+                      };
+     $r->print(&header(undef,$loaditems));
+     &Apache::lonhtmlcommon::add_breadcrumb
+         ({href=>"javascript:backPage(document.studentform,'','')",
+           text=>"Single user search"});
+     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
+                                                   'Course_Add_Student'));
+     my $defdom=$env{'request.role.domain'};
+     my $jscript = &Apache::loncommon::studentbrowser_javascript()."\n".
+         '<script type="text/javascript">'."\n".
+         &Apache::lonhtmlcommon::set_form_elements($elements->{'studentform'}).
+         '</script>'."\n";
+     my %lt=&Apache::lonlocal::texthash(
+ 		    'eos'  => "Enroll One Student",
+ 		    'usr'  => "Username",
+                     'dom'  => "Domain",
+                     'been' => "Begin Enrollment",
+ 				       );
+     $r->print(<<END);
+ $jscript
+ <h3>$lt{'eos'}</h3>
+ END
+     $r->print($response);
+     $r->print(&single_user_entry_form($defdom,$srch,$forcenewuser));
+     return;
+ }
+ sub single_user_entry_form {
+     my ($dom,$srch,$forcenewuser) = @_;
+     my $userpicker =
+        &Apache::loncommon::user_picker($dom,$srch,$forcenewuser,
+                                        'document.studentform');
+     my $srchbutton = &mt('Search');
+     my $output = <<"ENDDOCUMENT";
+ <input type="hidden" name="action" value="enrollstudent" />
+ <input type="hidden" name="state" value="gotusername" />
+ <input type="hidden" name="phase" value="get_user_info" />
+ $userpicker
+ <input name="userrole" type="button" value="$srchbutton" onclick="javascript:validateEntry(document.studentform)" />
+ ENDDOCUMENT
+     return $output;
+ }
+ sub print_enroll_single_student_form {
+     my ($r,$jscript,$ccuname,$ccdomain,$srch) = @_;
+     $r->print(&header($jscript));
+     &Apache::lonhtmlcommon::add_breadcrumb
+         ({href=>"javascript:backPage(document.studentform,'','')",
+           text=>"Single user search"});
+     if ($env{'form.phase'} eq 'userpicked') {
+         &Apache::lonhtmlcommon::add_breadcrumb
+      ({href=>"javascript:backPage(document.studentform,'get_user_info','select')",
+        text=>"Select user",});
+     }
+     &Apache::lonhtmlcommon::add_breadcrumb
+       ({href=>"javascript:backPage(document.studentform,'$env{'form.phase'}','modify')",
+         text=>"Set enrollment",});
+     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
+                                                   'Course_Add_Student'));
+     $r->print("<h3>".&mt('Enroll One Student')."</h3>");
+     #
+     my $home = &Apache::lonnet::homeserver($ccuname,$ccdomain);
+     # $new_user flags whether we are creating a new user or using an old one
+     my $new_user = 1;
+     if ($home ne 'no_host') {
+         $new_user = 0;
+     }
+     #
+     my $user_data_html = '';
+     my $javascript_validations = '';
+     if ($new_user) {
+         my $usertoadd;
+         my $instsrch = {
+                          srchin => 'instd',
+                          srchby => 'uname',
+                          srchtype => 'exact',
+                          srchterm => $ccuname,
+                          srchdomain => $ccdomain,
+                        };
+         if (($instsrch->{'srchterm'} ne '') && ($instsrch->{'srchdomain'} ne '')) {
+             $usertoadd = $instsrch->{'srchterm'}.':'.$instsrch->{'srchdomain'};
+         }
+         my (%dirsrch_results,%inst_results);
+         if ($usertoadd) {
+             if (&Apache::loncreateuser::directorysrch_check($instsrch) eq 'ok') {
+                 %dirsrch_results = &Apache::lonnet::inst_directory_query($instsrch);
+                 if (ref($dirsrch_results{$usertoadd}) eq 'HASH') {
+                     %inst_results = %{$dirsrch_results{$usertoadd}};
+                 }
+             }
+         }
+         my $defdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+         # Set up authentication forms
+         my ($krbdef,$krbdefdom) =
+             &Apache::loncommon::get_kerberos_defaults($ccdomain);
+         $javascript_validations =
+             &javascript_validations('auth',$krbdefdom,undef,undef,$ccdomain);
+         my %param = ( formname => 'document.studentform',
+                       kerb_def_dom => $krbdefdom,
+                       kerb_def_auth => $krbdef
+                       );
+         my $krbform = &Apache::loncommon::authform_kerberos(%param);
+         my $intform = &Apache::loncommon::authform_internal(%param);
+         my $locform = &Apache::loncommon::authform_local(%param);
+         #
+         # Set up domain selection form
+         my $homeserver_form = '';
+         my %servers = &Apache::lonnet::get_servers($ccdomain,'library');
+         $homeserver_form = '<select name="lcserver" size="1">'."\n".
+             '<option value="default" selected>default</option>'."\n";
+         while (my ($servername,$serverdescription) = each (%servers)) {
+             $homeserver_form .= '<option value="'.$servername.'">'.
+                 $serverdescription."</option>\n";
+         }
+         $homeserver_form .= "</select>\n";
+         #
+         #
+ 	my %lt=&Apache::lonlocal::texthash(
+ 		       'udf'  => "Personal Data",
+                        'fn'   => "First Name",
+                        'mn'   => "Middle Name",
+                        'ln'   => "Last Name",
+                        'gen'  => "Generation",
+                        'hs'   => "Home Server",
+                        'pswd' => "Login Data",
+ 		       'psam' => "Please select an authentication mechanism",
+                        'mail' => "Email Address"
+ 					   );
+ 	my $authhelp=&Apache::loncommon::help_open_topic('Auth_Options');
+         $user_data_html = <<END;
+ <h3>$lt{'udf'} $ccuname:$ccdomain</h3>
+ <table>
+ <tr><td class="LC_dropadd_labeltext"><label for="cfirst">$lt{'fn'}</label>:</td>
+     <td><input type="text" name="cfirst" size="15" value="$inst_results{'firstname'}" /></td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="cmiddle">$lt{'mn'}</label>:</td>
+     <td><input type="text" name="cmiddle" size="15" value="$inst_results{'middlename'}" /></td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="clast">$lt{'ln'}</label>:</td>
+     <td><input type="text" name="clast" size="15" value="$inst_results{'lastname'}" /></td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="cgen">$lt{'gen'}</label>:</td>
+     <td><input type="text" name="cgen" size="5" value="$inst_results{'generation'}" /> </td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="lcserver">$lt{'hs'}</label>:</td>
+     <td>$homeserver_form</td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="emailaddress">$lt{'mail'}</label>:</td>
+     <td><input type="text" name="emailaddress" size="20" value="$inst_results{'permanentemail'}" /></td></tr>
+ </table>
+ <h3>$lt{'pswd'}</h3>
+ $lt{'psam'}$authhelp
+ <p>
+ END
+         if ($krbform ne '') {
+             $user_data_html .= $krbform.'<br />';
+         }
+         if ($intform ne '') {
+             $user_data_html .= $intform.'<br />';
+         }
+         if ($locform ne '') {
+             $user_data_html .= $locform.'<br />';
+         }
+         $user_data_html .= "\n</p>\n"
+     } else {
+         # User already exists.  Do not worry about authentication
+         my %uenv = &Apache::lonnet::dump('environment',$ccdomain,$ccuname);
+         $javascript_validations = &javascript_validations('noauth');
+ 	my %lt=&Apache::lonlocal::texthash(
+ 		       'udf'  => "User Data for",
+                        'fn'   => "First Name",
+                        'mn'   => "Middle Name",
+                        'ln'   => "Last Name",
+                        'gen'  => "Generation",
+                        'mail' => "Email Address",
+ 					   );
+         $user_data_html = <<END;
+ <h3>$lt{'udf'} $ccuname:$ccdomain</h3>
+ <input type="hidden" name="lcserver" value="default" />
+ <table>
+ <tr><td class="LC_dropadd_labeltext"><label for="cfirst">$lt{'fn'}</label>:</td>
+     <td><input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" /></td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="cmiddle">$lt{'mn'}</label>:</td>
+     <td><input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" /></td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="clast">$lt{'ln'}</label>:</td>
+     <td><input type="text" name="clast" value="$uenv{'lastname'}" size="15" /></td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="cgen">$lt{'gen'}</label>:</td>
+     <td><input type="text" name="cgen" value="$uenv{'generation'}" size="5"  /> </td></tr>
+ <tr><td class="LC_dropadd_labeltext"><label for="emailaddress">$lt{'mail'}</label>:</td>
+     <td><input type="text" name="emailaddress" value="$uenv{'permanentemail'}" size="20" /></td></tr>
+ </table>
+ END
+     }
+     my $date_table = &date_setting_table();
+         # Print it all out
+     my %lt=&Apache::lonlocal::texthash(
+ 		   'cd'   => "Course Data",
+                    'gs'   => "Section",
+                    'idsn' => "ID/Student Number",
+                    'disn' => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
+                    'eas'  => "Enroll as student",
+ 				       );
+     $r->print(<<END);
+ <input type="hidden" name="action" value="enrollstudent" />
+ <input type="hidden" name="state"  value="gotusername" />
+ <input type="hidden" name="cuname" value="$ccuname" />
+ <input type="hidden" name="lcdomain" value="$ccdomain" />
  <script type="text/javascript" language="Javascript">
- function verify(vf) {
+ function verify(vf,sec_caller) {
      var founduname=0;
      var foundpwd=0;
      var foundname=0;
- Line 603  function verify(vf) {
+ Line 1190  function verify(vf) {
      }
      if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
          foundsec=1;
+         if (validate(sec_caller) == "error") {
+             return;
+         }
      }
      if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
  	foundid=1;
- Line 621  function clearpwd(vf) {
+ Line 1211  function clearpwd(vf) {
  }
  </script>
- <h3>Personal Data</h3>
- First Name:  <input type="text" name="cfirst"  size="15"><br>
+ $user_data_html
- Middle Name: <input type="text" name="cmiddle" size="15"><br>
- Last Name:   <input type="text" name="clast"   size="15"><br>
+ <h3>$lt{'cd'}</h3>
- Generation:  <input type="text" name="cgen"    size="5">
+ <p><label for="csec">$lt{'gs'}</label>: <input type="text" name="csec" size="5" />
- <p>ID/Student Number: <input type="text" name="cstid" size="10"></p>
+ </p>
+ $date_table
- <p>Group/Section: <input type=text name=csec size=5></p>
+ <h3>$lt{'idsn'}</h3>
+ <p>
- <h3>Login Data</h3>
+ <label for="cstid">$lt{'idsn'}</label>: <input type="text" name="cstid" size="10" />
- <p>Username: <input type="text" name="cuname"  size="15"></p>
- <p>Domain:   $domform</p>
- <p>Note: login settings below  will not take effect if the user already exists
- </p><p>
- $krbform
- </p><p>
- $intform
- </p><p>
- $locform
- </p><p>
- <h3>Starting and Ending Dates</h3>
- <input type="hidden" value='' name="pres_value">
- <input type="hidden" value='' name="pres_type">
- <input type="hidden" value='' name="pres_marker">
- <input type="hidden" value='$today' name=startdate>
- <input type="hidden" value='$halfyear' name=enddate>
- </p><p>
- <a
-  href="javascript:pjump('date_start','Enrollment Starting Date',document.studentform.startdate.value,'start','studentform.pres','dateset');"
- >Set Starting Date</a>
  </p><p>
- <a
+ <label>
-  href="javascript:pjump('date_end','Enrollment Ending Date',document.studentform.enddate.value,'end','studentform.pres','dateset');"
+ <input type="checkbox" name="forceid" value="yes" />
- >Set Ending Date</a>
+ $lt{'disn'}
+ </label>
  </p><p>
- <h3>ID/Student Number</h3>
+ <input type="button" onClick="verify(this.form,this.form.csec)" value="$lt{'eas'}" />
- <input type="checkbox" name="forceid" value="yes">
- Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
- (only do if you know what you are doing)<p>
- <input type="button" onClick="verify(this.form)" value="Enroll as student"><br>
- <input type="hidden" name="phase" value="five">
  </p>
- ENDSENROLL
+ END
- }
+     $r->print('<input type="hidden" name="currstate" value="" />'."\n".
+               '<input type="hidden" name="phase" value="" />'."\n".
- # =================================================== get the current classlist
+               '<input type="hidden" name="prevphase" value="'.$env{'form.phase'}.'" />'."\n");
- sub get_current_classlist {
+     if (ref($srch) eq 'HASH') {
-     my ($domain,$identifier) = @_;
+         foreach my $item (sort(keys(%{$srch}))) {
-     # domain is the domain the class is being run in
+             $r->print('<input type="hidden" name="'.$item.'" value="'.$srch->{$item}.'" />'."\n");
-     # identifier is the internal, unique identifier for the class.
+         }
-     my %currentlist=();
+     }
-     my $now=time;
+     foreach my $item ('sortby','seluname','seludom') {
-     my %results=&Apache::lonnet::dump('classlist',$domain,$identifier);
+         if (exists($env{'form.'.$item})) {
-     my ($tmp) = keys(%results);
+             $r->print('<input type="hidden" name="'.$item.'" value="'.$env{'form.'.$item}.'" />'."\n");
-     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
-         foreach my $student (keys(%results)) {
-             # Extract the start and end dates
-             my ($end,$start)=split(/\:/,$results{$student});
-             # If the class isn't over, put it in the list
-             unless (($end) && ($now>$end)) {
-                 $currentlist{$student}=1;
-             }
          }
-         return (undef,%currentlist);
-     } else {
-         return ($tmp,undef);
      }
+     return;
  }
  # ========================================================= Menu Phase Two Drop
- sub menu_phase_two_drop {
+ sub print_drop_menu {
      my $r=shift;
-     my $cid=$ENV{'request.course.id'};
+     $r->print("<h3>".&mt('Drop Students')."</h3>");
-     my ($error,%currentlist)=&get_current_classlist($ENV{'course.'.$cid.'.domain'},
+     my $cid=$env{'request.course.id'};
-                                            $ENV{'course.'.$cid.'.num'});
+     my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
-     if (defined($error)) {
+     if (! defined($classlist)) {
-         $r->print('<pre>ERROR:$error</pre>');
+         $r->print(&mt('There are no students currently enrolled.')."\n");
+         return;
+     }
+     # Print out the available choices
+     &show_drop_list($r,$classlist,$keylist);
+     return;
+ }
+ # ============================================== view classlist
+ sub print_html_classlist {
+     my ($r,$mode,$permission) = @_;
+     if (! exists($env{'form.sortby'})) {
+         $env{'form.sortby'} = 'username';
+     }
+     if ($env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
+         $env{'form.Status'} = 'Active';
+     }
+     my $status_select = &Apache::lonhtmlcommon::StatusOptions
+         ($env{'form.Status'});
+     my $cid =$env{'request.course.id'};
+     my $cdom=$env{'course.'.$cid.'.domain'};
+     my $cnum=$env{'course.'.$cid.'.num'};
+     #
+     # List course personnel
+     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
+     #
+     if (! defined($env{'form.output'}) ||
+         $env{'form.output'} !~ /^(csv|excel|html)$/ ) {
+         $env{'form.output'} = 'html';
+     }
+     #
+     $r->print('<br />'.&Apache::loncommon::start_data_table());
+     foreach my $role (sort keys %coursepersonnel) {
+         next if ($role =~ /^\s*$/);
+ 	$r->print(&Apache::loncommon::start_data_table_row().
+ 		  '<td>'.$role.'</td><td>');
+         foreach my $user (split(',',$coursepersonnel{$role})) {
+ 	    my ($puname,$pudom)=split(':',$user);
+ 	    $r->print(' '.&Apache::loncommon::aboutmewrapper(
+                                     &Apache::loncommon::plainname($puname,
+                                                                   $pudom),
+                                                              $puname,$pudom));
+ 	}
+         $r->print('</td>'.&Apache::loncommon::end_data_table_row());
+     }
+     $r->print(&Apache::loncommon::end_data_table());
+     #
+     # Interface output
+     $r->print('<input type="hidden" name="action" value="'.
+               $env{'form.action'}.'" />');
+     $r->print("<p>\n");
+     if ($env{'form.action'} ne 'modifystudent') {
+ 	my %lt=&Apache::lonlocal::texthash('csv' => "CSV",
+                                            'excel' => "Excel",
+                                            'html'  => 'HTML');
+         my $output_selector = '<select size="1" name="output" >';
+         foreach my $outputformat ('html','csv','excel') {
+             my $option = '<option value="'.$outputformat.'" ';
+             if ($outputformat eq $env{'form.output'}) {
+                 $option .= 'selected ';
+             }
+             $option .='>'.$lt{$outputformat}.'</option>';
+             $output_selector .= "\n".$option;
+         }
+         $output_selector .= '</select>';
+         $r->print('<label>'.&mt('Output Format: [_1]',$output_selector).'</label>'.('&nbsp;'x3));
+     }
+     $r->print('<label>'.&mt('Student Status: [_1]',$status_select)."</label>\n");
+     $r->print('<input type="submit" value="'.&mt('Update Display').'" />'.
+               "\n</p>\n");
+     #
+     # Print the classlist
+     $r->print('<h2>'.&mt('Current Class List').'</h2>');
+     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
+     if (exists($permission->{'view_section'})) {
+ 	my $sec = &Apache::loncoursedata::CL_SECTION();
+ 	foreach my $student (keys(%{$classlist})) {
+ 	    if ($classlist->{$student}[$sec] ne $permission->{'view_section'}) {
+ 		delete($classlist->{$student});
+ 	    }
+ 	}
      }
-     if (!defined(%currentlist)) {
-         $r->print("There are no students currently enrolled.\n");
+     if (! defined($classlist)) {
+         $r->print(&mt('There are no students currently enrolled.')."\n");
      } else {
          # Print out the available choices
-         &show_drop_list($r,%currentlist);
+         if ($env{'form.action'} eq 'modifystudent') {
+             &show_class_list($r,'view','modify',
+                              $env{'form.Status'},$classlist,$keylist);
+         } else {
+             &show_class_list($r,$env{'form.output'},'aboutme',
+                              $env{'form.Status'},$classlist,$keylist);
+         }
      }
  }
  # =================================================== Show student list to drop
+ sub show_class_list {
+     my ($r,$mode,$linkto,$statusmode,$classlist,$keylist)=@_;
+     my $cid=$env{'request.course.id'};
+     my $cdom = $env{'course.'.$cid.'.domain'};
+     my $cnum = $env{'course.'.$cid.'.num'};
+     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
+                                               $classlist,$keylist,$cdom,$cnum);
+     #
+     # Variables for excel output
+     my ($excel_workbook, $excel_sheet, $excel_filename,$row,$format);
+     #
+     # Variables for csv output
+     my ($CSVfile,$CSVfilename);
+     #
+     my $sortby = $env{'form.sortby'};
+     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end|type)$/) {
+         $sortby = 'username';
+     }
+     if (! exists($env{'form.displayphotos'})) {
+         $env{'form.displayphotos'} = 'off';
+     }
+     my $displayphotos = $env{'form.displayphotos'};
+     if (! exists($env{'form.displayclickers'})) {
+         $env{'form.displayclickers'} = 'off';
+     }
+     my $displayclickers = $env{'form.displayclickers'};
+     # Print out header
+     unless ($mode eq 'autoenroll') {
+         $r->print(<<END);
+ <input type="hidden" name="state" value="$env{'form.state'}" />
+ END
+     }
+     $r->print(<<END);
+ <input type="hidden" name="sortby" value="$sortby" />
+ <input type="hidden" name="displayphotos" value="$displayphotos" />
+ <input type="hidden" name="displayclickers" value="$displayclickers" />
+ END
+     if ($mode eq 'html' || $mode eq 'view' || $mode eq 'autoenroll') {
+         if ($linkto eq 'aboutme') {
+             $r->print(&mt("Select a user name to view the user's personal page."));
+         } elsif ($linkto eq 'modify') {
+             $r->print(&mt("Select a user name to modify the student's information"));
+         }
+ 	my %lt=&Apache::lonlocal::texthash(
+                                            'usrn'   => "username",
+                                            'dom'    => "domain",
+                                            'sn'     => "student name",
+                                            'sec'    => "section",
+                                            'grp'    => "active groups",
+                                            'start'  => "start date",
+                                            'end'    => "end date",
+                                            'type'   => "enroll type/action",
+ 					   'email'  => "email address",
+                                            'clicker'=> "clicker id",
+                                            'photo'  => "photo",
+ 					   );
+         unless ($mode eq 'autoenroll') {
+             $r->print(<<END);
+ <input type="hidden" name="sname"  value="" />
+ <input type="hidden" name="sdom"   value="" />
+ END
+         }
+         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
+             $r->print('
+ <script type="text/javascript">
+ function photowindow(photolink) {
+     var title = "Photo_Viewer";
+     var options = "scrollbars=1,resizable=1,menubar=0";
+     options += ",width=240,height=240";
+     stdeditbrowser = open(photolink,title,options,"1");
+     stdeditbrowser.focus();
+ }
+ </script>
+            ');
+         }
+         $r->print("
+ <p>
+ ".&Apache::loncommon::start_data_table()."
+ <tr>
+         ");
+         if ($mode eq 'autoenroll') {
+             $r->print("
+  <th><a href=\"javascript:document.studentform.sortby.value='type';document.studentform.submit();\">$lt{'type'}</a></th>
+             ");
+         } else {
+             $r->print("
+ <th>Count</th>
+             ");
+         }
+         $r->print(<<END);
+     <th>
+        <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">$lt{'usrn'}</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">$lt{'dom'}</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">$lt{'sn'}</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">$lt{'sec'}</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='start';document.studentform.submit();">$lt{'start'}</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='end';document.studentform.submit();">$lt{'end'}</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='groups';document.studentform.submit();">$lt{'grp'}</a>
+     </th><th>
+        <a href="javascript:document.studentform.sortby.value='email';document.studentform.submit();">$lt{'email'}</a>
+     </th>
+ END
+ # Clicker display on or off?
+         my %clicker_options = &Apache::lonlocal::texthash(
+                                                           'on' => 'Show',
+                                                           'off' => 'Hide',
+                                                          );
+         my $clickerchg = 'on';
+         if ($displayclickers eq 'on') {
+             $clickerchg = 'off';
+         }
+         $r->print('    <th>'."\n".'     '.
+             '<a href="javascript:document.studentform.displayclickers.value='.
+                       "'".$clickerchg."'".';document.studentform.submit();">'.
+                       $clicker_options{$clickerchg}.'</a>&nbsp;'.$lt{'clicker'}."\n".
+                       '    </th>'."\n");
+ # Photo display on or off?
+         if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
+             my %photo_options = &Apache::lonlocal::texthash(
+                                                             'on' => 'Show',
+                                                             'off' => 'Hide',
+                                                             );
+             my $photochg = 'on';
+             if ($displayphotos eq 'on') {
+                 $photochg = 'off';
+             }
+             $r->print('    <th>'."\n".'     '.
+             '<a href="javascript:document.studentform.displayphotos.value='.
+                       "'".$photochg."'".';document.studentform.submit();">'.
+                       $photo_options{$photochg}.'</a>&nbsp;'.$lt{'photo'}."\n".
+                       '    </th>'."\n");
+         }
+         $r->print("  </tr>\n");
+ # Done with the HTML header line
+     } elsif ($mode eq 'csv') {
+ 	#
+ 	# Open a file
+ 	$CSVfilename = '/prtspool/'.
+ 	    $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
+             time.'_'.rand(1000000000).'.csv';
+ 	unless ($CSVfile = Apache::File->new('>/home/httpd'.$CSVfilename)) {
+ 	    $r->log_error("Couldn't open $CSVfilename for output $!");
+ 	    $r->print("Problems occured in writing the csv file.  ".
+ 		      "This error has been logged.  ".
+ 		      "Please alert your LON-CAPA administrator.");
+ 	    $CSVfile = undef;
+ 	}
+ 	#
+ 	# Write headers and data to file
+         if($statusmode eq 'Expired') {
+             print $CSVfile '"'.&mt('Students with expired roles').'"'."\n";
+         }
+         if($statusmode eq 'Future') {
+             print $CSVfile '"'.&mt('Students with future roles').'"'."\n";
+         }
+         if ($statusmode eq 'Any') {
+             print $CSVfile '"'.join('","',map {
+ 		&Apache::loncommon::csv_translate(&mt($_))
+                 } ("username","domain","ID","student name",
+                    "section","start date","end date","status",
+ 		   "active groups","email address"))
+                   .'"'."\n";
+         } else {
+             print $CSVfile '"'.join('","',map {
+ 		&Apache::loncommon::csv_translate(&mt($_))
+                 } ("username","domain","ID","student name",
+                    "section","start date","end date",
+ 		   "active groups","email address")).'"'."\n";
+         }
+     } elsif ($mode eq 'excel') {
+         # Create the excel spreadsheet
+         ($excel_workbook,$excel_filename,$format) =
+             &Apache::loncommon::create_workbook($r);
+         return if (! defined($excel_workbook));
+         $excel_sheet = $excel_workbook->addworksheet('classlist');
+         #
+         my $description = 'Class List for '.
+             $env{'course.'.$env{'request.course.id'}.'.description'};
+         $excel_sheet->write($row++,0,$description,$format->{'h1'});
+         #
+         $excel_sheet->write($row++,0,["username","domain","ID",
+                                       "student name","section",
+                                       "start date","end date","status",
+                                       "active groups","email address"],
+                             $format->{'bold'});
+     }
+ # Done with header lines in all formats
+     #
+     # Sort the students
+     my %index;
+     my $i;
+     foreach (@$keylist) {
+         $index{$_} = $i++;
+     }
+     $index{'groups'} = scalar(@{$keylist});
+     my $index  = $index{$sortby};
+     my $second = $index{'username'};
+     my $third  = $index{'domain'};
+     my @Sorted_Students = sort {
+         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
+             ||
+         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
+             ||
+         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
+         } (keys(%$classlist));
+     my $studentcount = 0;
+     my $autocount = 0;
+     my $manualcount = 0;
+     my $unlockcount = 0;
+     my $lockcount = 0;
+     foreach my $student (@Sorted_Students) {
+         my $sdata = $classlist->{$student};
+         my $groups = $classgroups->{$student};
+         my $username = $sdata->[$index{'username'}];
+         my $domain   = $sdata->[$index{'domain'}];
+         my $section  = $sdata->[$index{'section'}];
+         my $active_groups;
+         if (ref($groups->{active}) eq 'HASH') {
+             $active_groups = join(', ',keys(%{$groups->{'active'}}));
+         }
+         my $name     = $sdata->[$index{'fullname'}];
+         my $id       = $sdata->[$index{'id'}];
+         my $status   = $sdata->[$index{'status'}];
+         next if (($statusmode ne 'Any') && ($status ne $statusmode));
+         my $start    = $sdata->[$index{'start'}];
+         my $end      = $sdata->[$index{'end'}];
+         my $type     = $sdata->[$index{'type'}];
+ 	my %emails   = &Apache::loncommon::getemails($username,$domain);
+ 	my $email;
+ 	if ($emails{'permanentemail'} =~ /\S/) {
+ 	    $email = $emails{'permanentemail'};
+ 	}
+         if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
+             if (! defined($start) || $start == 0) {
+                 $start = &mt('none');
+             } else {
+                 $start = &Apache::lonlocal::locallocaltime($start);
+             }
+             if (! defined($end) || $end == 0) {
+                 $end = &mt('none');
+             } else {
+                 $end = &Apache::lonlocal::locallocaltime($end);
+             }
+ 	    $r->print(&Apache::loncommon::start_data_table_row());
+             if ($mode eq 'autoenroll') {
+                 my $lockedtype = $sdata->[$index{'lockedtype'}];
+                 $studentcount++;
+                 my $cellentry;
+                 if ($type eq 'auto') {
+                     $cellentry = '<b>'.&mt('auto').'</b>&nbsp;<label><input type="checkbox" name="chgauto" value="'.$username.':'.$domain.'" />&nbsp;Change</label>';
+                     $autocount ++;
+                 } else {
+                     $cellentry = '<table border="0" cellspacing="0"><tr><td rowspan="2"><b>'.&mt('manual').'</b></td><td><nobr><label><input type="checkbox" name="chgmanual" value="'.$username.':'.$domain.'" />&nbsp;Change</label></nobr></td></tr><tr><td><nobr>';
+                     $manualcount ++;
+                     if ($lockedtype) {
+                         $cellentry .= '<label><input type="checkbox" name="unlockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Unlock').'</label>';
+                         $unlockcount ++;
+                     } else {
+                         $cellentry .= '<label><input type="checkbox" name="lockchg" value="'.$username.':'.$domain.'" />&nbsp;'.&mt('Lock').'</label>';
+                         $lockcount ++;
+                     }
+                     $cellentry .= '</nobr></td></tr></table>';
+                 }
+                 $r->print("<td>$cellentry<td>\n    ");
+             } else {
+                 $r->print("<td>".(++$studentcount)."</td><td>\n    ");
+             }
+             if ($linkto eq 'nothing') {
+                 $r->print($username);
+             } elsif ($linkto eq 'aboutme') {
+                 $r->print(&Apache::loncommon::aboutmewrapper($username,
+                                                              $username,
+                                                              $domain));
+             } elsif ($linkto eq 'modify') {
+                 $r->print('<a href="'.
+                           "javascript:document.studentform.sname.value='".
+                           $username.
+                           "';document.studentform.sdom.value='".$domain.
+                           "';document.studentform.state.value='selected".
+                           "';document.studentform.submit();".'">'.
+                           $username."</a>\n");
+             }
+             $r->print(<<"END");
+     </td>
+     <td>$domain</td>
+     <td>$id</td>
+     <td>$name</td>
+     <td>$section</td>
+     <td>$start</td>
+     <td>$end</td>
+     <td>$active_groups</td>
+     <td>$email</td>
+ END
+ # Clickers
+             if ($displayclickers eq 'on') {
+                my $clickers =
+                (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
+                if ($clickers!~/\w/) { $clickers='-'; }
+                $r->print('<td>'.$clickers.'</td>');
+             } else {
+                 $r->print('    <td>&nbsp;</td>  ');
+             }
+ # Photos
+             if ($env{'course.'.$env{'request.course.id'}.
+ 			 '.internal.showphoto'}) {
+                 if ($displayphotos eq 'on') {
+                     my $imgurl =
+ 			&Apache::lonnet::retrievestudentphoto($domain,
+ 							      $username,'gif',
+ 							      'thumbnail');
+                     $r->print('    <td align="right"><a href="javascript:photowindow('."'".&Apache::lonnet::studentphoto($domain,$username,'jpg')."'".')"><img src="'.$imgurl.'" border="1"></a></td>');
+                 } else {
+                     $r->print('    <td>&nbsp;</td>  ');
+                 }
+             }
+ 	    $r->print(&Apache::loncommon::end_data_table_row());
+         } elsif ($mode eq 'csv') {
+             next if (! defined($CSVfile));
+             # no need to bother with $linkto
+             if (! defined($start) || $start == 0) {
+                 $start = &mt('none');
+             } else {
+                 $start = &Apache::lonlocal::locallocaltime($start);
+             }
+             if (! defined($end) || $end == 0) {
+                 $end = &mt('none');
+             } else {
+                 $end = &Apache::lonlocal::locallocaltime($end);
+             }
+             my @line = ();
+             foreach ($username,$domain,$id,$name,$section,$start,$end) {
+                 push @line,&Apache::loncommon::csv_translate($_);
+             }
+             if ($statusmode eq 'Any') {
+                 push @line,&Apache::loncommon::csv_translate($status);
+             }
+             push @line,&Apache::loncommon::csv_translate($active_groups);
+             push @line,&Apache::loncommon::csv_translate($email);
+             print $CSVfile '"'.join('","',@line).'"'."\n";
+         } elsif ($mode eq 'excel') {
+             $excel_sheet->write($row,0,[$username,$domain,$id,
+                                           $name,$section]);
+             my $col = 5;
+             foreach my $time ($start,$end) {
+                 if (defined($time) && $time != 0) {
+                     $excel_sheet->write($row,$col++,
+                                    &Apache::lonstathelpers::calc_serial($time),
+                                     $format->{'date'});
+                 } else {
+                     $excel_sheet->write($row,$col++,'none');
+                 }
+             }
+             $excel_sheet->write($row,$col++,$status);
+             $excel_sheet->write($row,$col++,$active_groups);
+             $excel_sheet->write($row,$col++,$email);
+             $row++;
+         }
+     }
+     if ($mode eq 'view' || $mode eq 'html' || $mode eq 'autoenroll') {
+ 	$r->print(&Apache::loncommon::end_data_table().'<br />');
+     } elsif ($mode eq 'excel') {
+         $excel_workbook->close();
+         $r->print('<p><a href="'.$excel_filename.'">'.
+                   &mt('Your Excel spreadsheet').'</a> '.&mt('is ready for download').'.</p>'."\n");
+     } elsif ($mode eq 'csv') {
+         close($CSVfile);
+         $r->print('<a href="'.$CSVfilename.'">'.
+                   &mt('Your CSV file').'</a> is ready for download.'.
+                   "\n");
+         $r->rflush();
+     }
+     if ($mode eq 'autoenroll') {
+         return ($studentcount,$autocount,$manualcount,$lockcount,$unlockcount);
+     }
+     return;
+ }
+ #
+ # print out form for modification of a single students data
+ #
+ sub print_modify_student_form {
+     my $r = shift();
+     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+                                             ['sdom','sname']);
+     my $sname  = $env{'form.sname'};
+     my $sdom   = $env{'form.sdom'};
+     my $sortby = $env{'form.sortby'};
+     # determine the students name information
+     my %info=&Apache::lonnet::get('environment',
+                                   ['firstname','middlename',
+                                    'lastname','generation','id',
+                                    'permanentemail'], $sdom, $sname);
+     my ($tmp) = keys(%info);
+     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
+         $r->print('<font color="#ff0000" size="+2">'.&mt('Error').'</font>'.
+                   '<p>'.
+                   &mt('Unable to retrieve environment data for').' '.$sname.
+                   &mt('in domain').' '.$sdom.'</p><p>'.
+                   &mt('Please contact your LON-CAPA administrator regarding this situation.').'</p>'.&Apache::loncommon::end_page());
+         return;
+     }
+     # determine the students starting and ending times and section
+     my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
+     if ($starttime =~ /^error/) {
+         $r->print('<h2>'&mt('Error').'</h2>');
+         $r->print('<p>'.$starttime.'</p>');
+         return;
+     }
+     #
+     # Deal with date forms
+     my $current_date_description = '';
+     my $textdate = '';
+     if (! defined($starttime) || $starttime == 0) {
+         $current_date_description = &mt('Current Starting Date: not set').
+             '<br />';
+     } else {
+         $current_date_description =
+             &mt('Current Starting Date: [_1]',
+                 &Apache::lonlocal::locallocaltime($starttime)).'<br />';
+     }
+     if (! defined($endtime) || $endtime == 0) {
+         $current_date_description.= &mt('Current Ending Date: not set').
+             '<br />';
+     } else {
+         $current_date_description.=
+             &mt('Current Ending Date: [_1]',
+                 &Apache::lonlocal::locallocaltime($endtime)).'<br />';
+     }
+     my $date_table = &date_setting_table($starttime,$endtime);
+     #
+     if (! exists($env{'form.Status'}) ||
+         $env{'form.Status'} !~ /^(Any|Expired|Active|Future)$/) {
+         $env{'form.Status'} = 'crap';
+     }
+     # Make sure student is enrolled in course
+     my %lt=&Apache::lonlocal::texthash(
+ 	           'mef'   => "Modify Enrollment for",
+                    'odcc'  => "Only domain coordinators can change a users password.",
+                    'sn'    => "Student Name",
+                    'fn'    => "First",
+                    'mn'    => "Middle",
+                    'ln'    => "Last",
+                    'gen'   => "Generation",
+                    'email' => "E-mail address",
+                    'sid'   => "Student ID",
+                    'disn'  => "Disable ID/Student Number Safeguard and Force Change of Conflicting IDs (only do if you know what you are doing)",
+                    'sec'   => "Section",
+                    'sm'    => "Submit Modifications",
+ 				       );
+ # Check if section name is valid
+     my $section_check = &section_check_js();
+     $r->print(<<"END");
+ <script type="text/javascript">
+ $section_check
+ function secverify(formname,caller) {
+     if (validate(caller) == "error") {
+         return;
+     } else {
+         formname.submit();
+     }
+ }
+ </script>
+ <p>
+ <font size="+1">
+ $lt{'odcc'}
+ </font>
+ </p>
+ <input type="hidden" name="slogin"  value="$sname"  />
+ <input type="hidden" name="sdomain" value="$sdom" />
+ <input type="hidden" name="action"  value="modifystudent" />
+ <input type="hidden" name="state"   value="done" />
+ <input type="hidden" name="sortby"  value="$sortby" />
+ <input type="hidden" name="Status"  value="$env{'form.Status'}" />
+ <h3>$lt{'mef'} $info{'firstname'} $info{'middlename'}
+ $info{'lastname'} $info{'generation'}, $sname:$sdom</h3>
+ <p>
+ <b>$lt{'sn'}</b>
+ <table>
+ <tr><th>$lt{'fn'}</th><th>$lt{'mn'}</th><th>$lt{'ln'}</th><th>$lt{'gen'}</th></tr>
+ <tr><td>
+ <input type="text" name="firstname"  value="$info{'firstname'}"  /></td><td>
+ <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
+ <input type="text" name="lastname"   value="$info{'lastname'}"   /></td><td>
+ <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
+ </table>
+ </p><p>
+ <b>$lt{'email'}</b>: <input type="text" name="permanentemail" value="$info{'permanentemail'}" size="30" />
+ </p><p>
+ <b>$lt{'sid'}</b>: <input type="text" name="id" value="$info{'id'}" size="12" />
+ </p><p>
+ <label>
+ <input type="checkbox" name="forceid" />
+ $lt{'disn'}
+ </label>
+ </p><p>
+ <b>$lt{'sec'}</b>: <input type="text" name="section" value="$section" size="14" />
+ </p>
+ <p>$current_date_description</p>
+ <p>$date_table</p>
+ <input type="button" value="$lt{'sm'}" onClick="secverify(this.form,this.form.section)" />
+ END
+     $r->print(&Apache::loncommon::end_page());
+     return;
+ }
+ #
+ # modify a single students section
+ #
+ sub modify_single_student {
+     my ($r) = @_;
+     #
+     # Remove non alphanumeric values from the section
+     $env{'form.section'} =~ s/\W//g;
+     #
+     # Do the date defaults first
+     my ($starttime,$endtime) = &get_dates_from_form();
+     if ($env{'form.makedatesdefault'}) {
+         $r->print(&make_dates_default($starttime,$endtime));
+     }
+     # Get the 'sortby' and 'Status' variables so the user goes back to their
+     # previous screen
+     my $sortby = $env{'form.sortby'};
+     my $status = $env{'form.Status'};
+     #
+     # We always need this information
+     my $slogin     = $env{'form.slogin'};
+     my $sdom       = $env{'form.sdomain'};
+     #
+     # Get the old data
+     my %old=&Apache::lonnet::get('environment',
+                                  ['firstname','middlename',
+                                   'lastname','generation','id',
+                                   'permanentemail'],$sdom, $slogin);
+     $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
+                                                   $env{'request.course.id'});
+     my ($tmp) = keys(%old);
+     if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
+         $r->print(&mt('There was an error determining the environment values for')." $slogin : $sdom.");
+         return;
+     }
+     undef $tmp;
+     #
+     # Get the new data
+     my $firstname  = $env{'form.firstname'};
+     my $middlename = $env{'form.middlename'};
+     my $lastname   = $env{'form.lastname'};
+     my $generation = $env{'form.generation'};
+     my $permanentemail = $env{'form.permanentemail'};
+     my $section    = $env{'form.section'};
+     my $courseid   = $env{'request.course.id'};
+     my $sid        = $env{'form.id'};
+     my $displayable_starttime = localtime($starttime);
+     my $displayable_endtime   = localtime($endtime);
+     #
+     # check for forceid override
+     if ((defined($old{'id'})) && ($old{'id'} ne '') &&
+         ($sid ne $old{'id'}) && (! exists($env{'form.forceid'}))) {
+         $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>");
+         $sid = $old{'id'};
+     }
+     #
+     # talk to the user about what we are going to do
+     my %lt=&Apache::lonlocal::texthash(
+ 	           'mdu'   => "Modifying data for user",
+                    'si'    => "Student Information",
+                    'fd'    => "Field",
+                    'ov'    => "Old Value",
+                    'nv'    => "New Value",
+                    'fn'    => "First name",
+                    'mn'    => "Middle name",
+                    'ln'    => "Last name",
+                    'gen'   => "Generation",
+                    'em'    => "E-mail address",
+                    'sec'   => "Section",
+                    'ri'    => "Role Information",
+                    'st'    => "Start Time",
+                    'et'    => "End Time",
+ 				       );
+     $r->print(<<END);
+     <h3>$lt{'mdu'} $slogin:$sdom </h3>
+ END
+     $r->print(<<END);
+ <table>
+  <tr>
+   <td>
+     <table class="LC_nested_outer">
+      <tr>
+       <th>$lt{si}</th>
+      </tr>
+      <tr>
+       <td>
+        <table class="LC_nested">
+         <tr class="LC_info_row">
+          <td class="LC_left_item"> $lt{'fd'} </td>
+          <td class="LC_left_item"> $lt{'ov'} </td>
+          <td class="LC_left_item"> $lt{'nv'} </td>
+         </tr>
+         <tr class="LC_odd_row">
+          <td class="LC_left_item"> <b>$lt{'fn'}</b> </td>
+          <td class="LC_left_item"> $old{'firstname'} </td>
+          <td class="LC_left_item"> $firstname </td>
+         </tr>
+         <tr>
+          <td class="LC_left_item"> <b>$lt{'mn'}</b> </td>
+          <td class="LC_left_item"> $old{'middlename'} </td>
+          <td class="LC_left_item"> $middlename </td>
+         </tr>
+         <tr class="LC_odd_row">
+          <td class="LC_left_item"> <b>$lt{'ln'}</b> </td>
+          <td class="LC_left_item"> $old{'lastname'} </td>
+          <td class="LC_left_item"> $lastname </td>
+         </tr>
+         <tr>
+          <td class="LC_left_item"> <b>$lt{'gen'}</b> </td>
+          <td class="LC_left_item"> $old{'generation'} </td>
+          <td class="LC_left_item"> $generation </td>
+         </tr>
+         <tr class="LC_odd_row">
+          <td class="LC_left_item"> <b>ID</b> </td>
+          <td class="LC_left_item"> $old{'id'} </td>
+          <td class="LC_left_item"> $sid </td>
+         </tr>
+         <tr>
+          <td class="LC_left_item"> <b>$lt{'em'}</b> </td>
+          <td class="LC_left_item"> $old{'permanentemail'} </td>
+          <td class="LC_left_item"> $permanentemail </td>
+         <tr class="LC_odd_row">
+          <td> <b>$lt{'sec'}</b> </td>
+          <td> $old{'section'} </td>
+          <td> $section</td>
+         </tr>
+        </table>
+       </td>
+      </tr>
+    </table>
+    <br />
+    <table class="LC_nested_outer">
+      <tr>
+       <th>$lt{'ri'}</th>
+      </tr>
+      <tr>
+       <td>
+        <table class="LC_nested">
+         <tr class="LC_odd_row">
+          <td class="LC_left_item"><b>$lt{'st'}:</b></td>
+          <td class="LC_right_item"> $displayable_starttime </td>
+         </tr>
+         <tr>
+          <td class="LC_left_item"><b>$lt{'et'}:</b></td>
+          <td class="LC_right_item"> $displayable_endtime   </td>
+         </tr>
+        </table>
+       </td>
+      </tr>
+     </table>
+   </td>
+  </tr>
+ </table>
+ <p>
+ END
+     #
+     # Send request(s) to modify data (final undef is for 'desiredhost',
+     # which is a moot point because the student already has an account.
+     my $modify_section_results = &modifystudent($sdom,$slogin,
+                                                 $env{'request.course.id'},
+                                                 $section,undef);
+     if ($modify_section_results !~ /^ok/) {
+         $r->print(&mt('An error occured during the attempt to change the section for this student.')."<br />");
+     }
+     my $roleresults = &Apache::lonnet::modifystudent
+         ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
+          $generation,$section,$endtime,$starttime,$env{'form.forceid'},
+          undef,$permanentemail);
+     if ($old{'permanentemail'} ne $permanentemail) {
+         &Apache::loncommon::flush_email_cache($slogin,$sdom);
+     }
+     if ($roleresults eq 'refused' ) {
+         $r->print(&mt('Your request to change the role information for this student was refused. You do not appear to have sufficient authority to change student information.'));
+     } elsif ($roleresults !~ /ok/) {
+         $r->print(&mt('An error occurred during the attempt to change the role information for this student.')."  <br />".
+                   &mt('The error reported was')." ".
+                   $roleresults);
+         &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
+                                  " data for ".$slogin." : ".$sdom." by ".
+                                  $env{'user.name'}." : ".$env{'user.domain'}.
+                                  ":".$roleresults);
+     } else { # everything is okay!
+         $r->print(&mt('Student information updated successfully.')." <br />".
+                   &mt('The student must log out and log in again to see these changes.'));
+     }
+     my $Masd=&mt('Modify another students data');
+     $r->print(<<END);
+ </p><p>
+ <input type="hidden" name="action" value="modifystudent" />
+ <input type="hidden" name="sortby" value="$sortby" />
+ <input type="hidden" name="Status" value="$status" />
+ <a href="javascript:document.studentform.submit();">$Masd</a>
+ END
+     $r->print(&Apache::loncommon::end_page());
+     return;
+ }
+ sub get_enrollment_data {
+     my ($sname,$sdomain) = @_;
+     my $courseid = $env{'request.course.id'};
+     my $cdom = $env{'course.'.$courseid.'.domain'};
+     my $cnum = $env{'course.'.$courseid.'.num'};
+     my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
+     my ($tmp) = keys(%roles);
+     # Bail out if we were unable to get the students roles
+     return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
+     # Go through the roles looking for enrollment in this course
+     my ($end,$start) = (undef,undef);
+     my $section = '';
+     my $count = scalar(keys(%roles));
+     while (my ($course,$role) = each(%roles)) {
+         if ($course=~m{^/\Q$cdom\E/\Q$cnum\E/*\s*(\w+)*_st$} ) {
+             #
+             # Get active role
+             $section=$1;
+             (undef,$end,$start)=split(/\_/,$role);
+             my $now=time;
+             my $notactive=0;
+             if ($start) {
+                 if ($now<$start) { $notactive=1; }
+             }
+             if ($end) {
+                 if ($now>$end) { $notactive=1; }
+             }
+             unless ($notactive) { return ($start,$end,$section); }
+         }
+     }
+     return ($start,$end,$section);
+ }
+ #################################################
+ #################################################
+ =pod
+ =item show_drop_list
+ Display a list of students to drop
+ Inputs:
+ =over 4
+ =item $r, Apache request
+ =item $classlist, hash pointer returned from loncoursedata::get_classlist();
+ =item $keylist, array pointer returned from loncoursedata::get_classlist()
+ which describes the order elements are stored in the %$classlist values.
+ =item $nosort, if true, sorting links are omitted.
+ =back
+ =cut
+ #################################################
+ #################################################
  sub show_drop_list {
-     my ($r,%currentlist)=@_;
+     my ($r,$classlist,$keylist,$nosort)=@_;
-     my $cid=$ENV{'request.course.id'};
+     my $cid=$env{'request.course.id'};
-     $r->print(<<'END');
+     if (! exists($env{'form.sortby'})) {
+         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+                                                 ['sortby']);
+     }
+     my $sortby = $env{'form.sortby'};
+     if ($sortby !~ /^(username|domain|section|groups|fullname|id|start|end)$/) {
+         $sortby = 'username';
+     }
+     my $cdom = $env{'course.'.$cid.'.domain'};
+     my $cnum = $env{'course.'.$cid,'.num'};
+     my ($classgroups) = &Apache::loncoursedata::get_group_memberships(
+                                               $classlist,$keylist,$cdom,$cnum);
+     #
+     my $action = "drop";
+     $r->print(<<END);
+ <input type="hidden" name="sortby" value="$sortby" />
+ <input type="hidden" name="action" value="$action" />
+ <input type="hidden" name="state"  value="done" />
  <script>
- function checkAll(field)
+ function checkAll(field) {
- {
      for (i = 0; i < field.length; i++)
          field[i].checked = true ;
  }
- function uncheckAll(field)
+ function uncheckAll(field) {
- {
      for (i = 0; i < field.length; i++)
          field[i].checked = false ;
  }
  </script>
  <p>
  <input type="hidden" name="phase" value="four">
- <table border=2>
+ END
- <tr><th>&nbsp;</th><th>username</th><th>domain</th>
- <th>ID</th><th>student name</th><th>generation</th>
+ my %lt=&Apache::lonlocal::texthash('usrn'   => "username",
- <th>section</th></tr>
+                                    'dom'    => "domain",
- END
+                                    'sn'     => "student name",
-     foreach (sort keys %currentlist) {
+                                    'sec'    => "section",
-         my ($sname,$sdom)=split(/\:/,$_);
+                                    'start'  => "start date",
-         my %reply=&Apache::lonnet::idrget($sdom,$sname);
+                                    'end'    => "end date",
-         my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
+                                    'groups' => "active groups",
-         my %info=&Apache::lonnet::get('environment',
+                                    );
-                                       ['firstname','middlename',
+     if ($nosort) {
-                                        'lastname','generation'],
+ 	$r->print(&Apache::loncommon::start_data_table());
-                                       $sdom, $sname);
+         $r->print(<<END);
-         my ($tmp) = keys(%info);
-         if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
-             $r->print('<tr><td colspan="7"><font color="red">'.
-                       'Internal error: unable to get environment '.
-                       'for '.$sname.' in domain '.$sdom.'</font></td></tr>');
-         } else {
-             $r->print(<<"END");
  <tr>
-     <td><input type="checkbox" name="droplist" value="$_"></td>
+     <th>&nbsp;</th>
-     <td>$sname</td>
+     <th>$lt{'usrn'}</th>
-     <td>$sdom</td>
+     <th>$lt{'dom'}</th>
-     <td>$reply{$sname}</td>
+     <th>ID</th>
-     <td>$info{'lastname'}, $info{'firstname'} $info{'middlename'}</td>
+     <th>$lt{'sn'}</th>
-     <td>$info{'generation'}</td>
+     <th>$lt{'sec'}</th>
-     <td>$ssec</td>
+     <th>$lt{'start'}</th>
+     <th>$lt{'end'}</th>
+     <th>$lt{'groups'}</th>
  </tr>
  END
+     } else  {
+ 	$r->print(&Apache::loncommon::start_data_table());
+         $r->print(<<END);
+ <tr><th>&nbsp;</th>
+     <th>
+        <a href="/adm/dropadd?action=$action&sortby=username">$lt{'usrn'}</a>
+     </th><th>
+        <a href="/adm/dropadd?action=$action&sortby=domain">$lt{'dom'}</a>
+     </th><th>
+        <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
+     </th><th>
+        <a href="/adm/dropadd?action=$action&sortby=fullname">$lt{'sn'}</a>
+     </th><th>
+        <a href="/adm/dropadd?action=$action&sortby=section">$lt{'sec'}</a>
+     </th><th>
+        <a href="/adm/dropadd?action=$action&sortby=start">$lt{'start'}</a>
+     </th><th>
+        <a href="/adm/dropadd?action=$action&sortby=end">$lt{'end'}</a>
+     </th><th>
+        <a href="/adm/dropadd?action=$action&sortby=groups">$lt{'groups'}</a>
+     </th>
+ </tr>
+ END
+     }
+     #
+     # Sort the students
+     my %index;
+     my $i;
+     foreach (@$keylist) {
+         $index{$_} = $i++;
+     }
+     $index{'groups'} = scalar(@$keylist);
+     my $index  = $index{$sortby};
+     my $second = $index{'username'};
+     my $third  = $index{'domain'};
+     my @Sorted_Students = sort {
+         lc($classlist->{$a}->[$index])  cmp lc($classlist->{$b}->[$index])
+             ||
+         lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
+             ||
+         lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
+         } (keys(%$classlist));
+     foreach my $student (@Sorted_Students) {
+         my $error;
+         my $sdata = $classlist->{$student};
+         my $username = $sdata->[$index{'username'}];
+         my $domain   = $sdata->[$index{'domain'}];
+         my $section  = $sdata->[$index{'section'}];
+         my $name     = $sdata->[$index{'fullname'}];
+         my $id       = $sdata->[$index{'id'}];
+         my $start    = $sdata->[$index{'start'}];
+         my $end      = $sdata->[$index{'end'}];
+         my $groups = $classgroups->{$student};
+         my $active_groups;
+         if (ref($groups->{active}) eq 'HASH') {
+             $active_groups = join(', ',keys(%{$groups->{'active'}}));
          }
+         if (! defined($start) || $start == 0) {
+             $start = &mt('none');
+         } else {
+             $start = &Apache::lonlocal::locallocaltime($start);
+         }
+         if (! defined($end) || $end == 0) {
+             $end = &mt('none');
+         } else {
+             $end = &Apache::lonlocal::locallocaltime($end);
+         }
+         my $status   = $sdata->[$index{'status'}];
+         next if ($status ne 'Active');
+         #
+         $r->print(&Apache::loncommon::start_data_table_row());
+         $r->print(<<"END");
+     <td><input type="checkbox" name="droplist" value="$student"></td>
+     <td>$username</td>
+     <td>$domain</td>
+     <td>$id</td>
+     <td>$name</td>
+     <td>$section</td>
+     <td>$start</td>
+     <td>$end</td>
+     <td>$active_groups</td>
+ END
+         $r->print(&Apache::loncommon::end_data_table_row());
      }
-     $r->print('</table><br>');
+     $r->print(&Apache::loncommon::end_data_table().'<br />');
+     %lt=&Apache::lonlocal::texthash(
+ 	               'dp'   => "Drop Students",
+                        'ca'   => "check all",
+                        'ua'   => "uncheck all",
+ 				       );
      $r->print(<<"END");
  </p><p>
- <input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)"> &nbsp;
+ <input type="button" value="$lt{'ca'}" onclick="javascript:checkAll(document.studentform.droplist)"> &nbsp;
- <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)">
+ <input type="button" value="$lt{'ua'}" onclick="javascript:uncheckAll(document.studentform.droplist)">
- <p><input type=submit value="Drop Students"></p>
+ <p><input type=submit value="$lt{'dp'}"></p>
  END
+     return;
+ }
+ #
+ # Print out the initial form to get the courselist file
+ #
+ sub print_first_courselist_upload_form {
+     my $r=shift;
+     my $str;
+     $str  = '<input type="hidden" name="phase" value="two">';
+     $str .= '<input type="hidden" name="action" value="upload" />';
+     $str .= '<input type="hidden"   name="state"  value="got_file" />';
+     $str .= "<h3>".&mt('Upload a class list')."</h3>\n";
+     $str .= &Apache::loncommon::upfile_select_html();
+     $str .= "<p>\n";
+     $str .= '<input type="submit" name="fileupload" value="'.
+         &mt('Upload class list').'">'."\n";
+     $str .= '<label><input type="checkbox" name="noFirstLine" /> '.
+         &mt('Ignore First Line')."</label></p>\n";
+     $str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
+                          &mt("How do I create a class list from a spreadsheet")).
+                              "<br />\n";
+     $str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
+                            &mt("How do I create a CSV file from a spreadsheet")).
+                                "<br />\n";
+     $str .= &Apache::loncommon::end_page();
+     $r->print($str);
+     return;
  }
  # ================================================= Drop/Add from uploaded file
- Line 774  sub upfile_drop_add {
+ Line 2332  sub upfile_drop_add {
      my $r=shift;
      &Apache::loncommon::load_tmp_file($r);
      my @studentdata=&Apache::loncommon::upfile_record_sep();
-     my @keyfields = split(/\,/,$ENV{'form.keyfields'});
+     if($env{'form.noFirstLine'}){shift(@studentdata);}
-     my $cid = $ENV{'request.course.id'};
+     my @keyfields = split(/\,/,$env{'form.keyfields'});
+     my $cid = $env{'request.course.id'};
      my %fields=();
-     for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
+     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
-         if ($ENV{'form.upfile_associate'} eq 'reverse') {
+         if ($env{'form.upfile_associate'} eq 'reverse') {
-             if ($ENV{'form.f'.$i} ne 'none') {
+             if ($env{'form.f'.$i} ne 'none') {
-                 $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
+                 $fields{$keyfields[$i]}=$env{'form.f'.$i};
              }
          } else {
-             $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
+             $fields{$env{'form.f'.$i}}=$keyfields[$i];
          }
      }
      #
-     my $startdate = $ENV{'form.startdate'};
+     # Store the field choices away
-     my $enddate   = $ENV{'form.enddate'};
+     foreach my $field (qw/username names
-     if ($startdate=~/\D/) { $startdate=''; }
+                        fname mname lname gen id sec ipwd email/) {
-     if ($enddate=~/\D/)   { $enddate=''; }
+         $env{'form.'.$field.'_choice'}=$fields{$field};
+     }
+     &Apache::loncommon::store_course_settings('enrollment_upload',
+                                               { 'username_choice' => 'scalar',
+                                                 'names_choice' => 'scalar',
+                                                 'fname_choice' => 'scalar',
+                                                 'mname_choice' => 'scalar',
+                                                 'lname_choice' => 'scalar',
+                                                 'gen_choice' => 'scalar',
+                                                 'id_choice' => 'scalar',
+                                                 'sec_choice' => 'scalar',
+                                                 'ipwd_choice' => 'scalar',
+                                                 'email_choice' => 'scalar' });
+     #
+     my ($startdate,$enddate) = &get_dates_from_form();
+     if ($env{'form.makedatesdefault'}) {
+         $r->print(&make_dates_default($startdate,$enddate));
+     }
      # Determine domain and desired host (home server)
-     my $domain=$ENV{'form.lcdomain'};
+     my $domain=$env{'form.lcdomain'};
-     my $desiredhost = $ENV{'form.lcserver'};
+     my $desiredhost = $env{'form.lcserver'};
      if (lc($desiredhost) eq 'default') {
          $desiredhost = undef;
      } else {
-         my %home_servers = &Apache::loncommon::get_home_servers($domain);
+         my %home_servers = &Apache::lonnet::get_servers($domain,'library');
          if (! exists($home_servers{$desiredhost})) {
-             $r->print('<font color="#ff0000">Error:</font>'.
+             $r->print('<font color="#ff0000">'.&mt('Error').'</font>'.
-                       'Invalid home server specified');
+                       &mt('Invalid home server specified'));
+             $r->print(&Apache::loncommon::end_page());
              return;
          }
      }
      # Determine authentication mechanism
      my $amode  = '';
      my $genpwd = '';
-     if ($ENV{'form.login'} eq 'krb') {
+     if ($env{'form.login'} eq 'krb') {
-         $amode='krb4';
+         $amode='krb';
-         $genpwd=$ENV{'form.krbarg'};
+ 	$amode.=$env{'form.krbver'};
-     } elsif ($ENV{'form.login'} eq 'int') {
+         $genpwd=$env{'form.krbarg'};
+     } elsif ($env{'form.login'} eq 'int') {
          $amode='internal';
-         if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
+         if ((defined($env{'form.intarg'})) && ($env{'form.intarg'})) {
-             $genpwd=$ENV{'form.intarg'};
+             $genpwd=$env{'form.intarg'};
          }
-     } elsif ($ENV{'form.login'} eq 'loc') {
+     } elsif ($env{'form.login'} eq 'loc') {
          $amode='localauth';
-         if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
+         if ((defined($env{'form.locarg'})) && ($env{'form.locarg'})) {
-             $genpwd=$ENV{'form.locarg'};
+             $genpwd=$env{'form.locarg'};
          }
      }
-     unless (($domain=~/\W/) || ($amode eq '')) {
+     if ($amode =~ /^krb/) {
+         if (! defined($genpwd) || $genpwd eq '') {
+             $r->print('<font color="red" size="+1">'.
+                       &mt('Unable to enroll students').'</font>  '.
+                       &mt('No Kerberos domain was specified.').'</p>');
+             $amode = ''; # This causes the loop below to be skipped
+         }
+     }
+     if ( $domain eq &LONCAPA::clean_domain($domain)
+ 	&& ($amode ne '')) {
          #######################################
          ##         Enroll Students           ##
          #######################################
-         $r->print('<h3>Enrolling Students</h3>');
+         $r->print('<h3>'.&mt('Enrolling Students')."</h3>\n<p>\n");
          my $count=0;
          my $flushc=0;
          my %student=();
+         # Get information about course groups
+         my %curr_groups = &Apache::longroup::coursegroups();
          # Get new classlist
          foreach (@studentdata) {
              my %entries=&Apache::loncommon::record_sep($_);
- Line 853  sub upfile_drop_add {
+ Line 2443  sub upfile_drop_add {
                          $gen=$entries{$fields{'gen'}};
                      }
                  }
-                 if ($entries{$fields{'username'}}=~/\W/) {
+                 if ($entries{$fields{'username'}}
-                     $r->print('<p><b>Unacceptable username: '.
+ 		    ne &LONCAPA::clean_username($entries{$fields{'username'}})) {
-                               $entries{$fields{'username'}}.' for user '.
+                     $r->print('<br />'.
-                               $fname.' '.$mname.' '.$lname.' '.$gen.'</b><p>');
+       &mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
+           $entries{$fields{'username'}},$fname,$mname,$lname,$gen).
+                               '</b>');
                  } else {
                      # determine section number
                      my $sec='';
- Line 866  sub upfile_drop_add {
+ Line 2458  sub upfile_drop_add {
                              $sec=$entries{$fields{'sec'}};
                          }
                      }
+                     # remove non alphanumeric values from section
+                     $sec =~ s/\W//g;
+                     if ($sec eq "none" || $sec eq 'all') {
+                         $r->print('<br />'.
+       &mt('<b>[_1]</b>: Unable to enroll: section name "[_2]" for user [_3] [_4] [_5] [_6] is a reserved word.',
+                         $username,$sec,$fname,$mname,$lname,$gen));
+                         next;
+                     } elsif (($sec ne '') && (exists($curr_groups{$sec}))) {
+                         $r->print('<br />'.
+       &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.',
+                         $username,$sec,$fname,$mname,$lname,$gen));
+                         next;
+                     }
                      # determine student id number
                      my $id='';
                      if (defined($fields{'id'})) {
- Line 874  sub upfile_drop_add {
+ Line 2479  sub upfile_drop_add {
                          }
                          $id=~tr/A-Z/a-z/;
                      }
+                     # determine email address
+                     my $email='';
+                     if (defined($fields{'email'})) {
+                         if (defined($entries{$fields{'email'}})) {
+                             $email=$entries{$fields{'email'}};
+                             unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
+                         }
+                     }
                      # determine student password
                      my $password='';
                      if ($genpwd) {
- Line 885  sub upfile_drop_add {
+ Line 2498  sub upfile_drop_add {
                              }
                          }
                      }
-                     if ($password) {
+                     # Clean up whitespace
+                     foreach (\$domain,\$username,\$id,\$fname,\$mname,
+                              \$lname,\$gen,\$sec) {
+                         $$_ =~ s/(\s+$|^\s+)//g;
+                     }
+                     if ($password || $env{'form.login'} eq 'loc') {
                          &modifystudent($domain,$username,$cid,$sec,
                                         $desiredhost);
                          my $reply=&Apache::lonnet::modifystudent
                              ($domain,$username,$id,$amode,$password,
                               $fname,$mname,$lname,$gen,$sec,$enddate,
-                              $startdate,$ENV{'form.forceid'},$desiredhost);
+                              $startdate,$env{'form.forceid'},$desiredhost,
+                              $email);
                          if ($reply ne 'ok') {
-                             $r->print('<p><b>'.
+                             $reply =~ s/^error://;
-                                       'Error enrolling '.$username.': '.
+                             $r->print('<br />'.
-                                       $reply.'</b></p>');
+                 &mt('<b>[_1]</b>:  Unable to enroll: [_2]',$username,$reply));
           		} else {
                              $count++; $flushc++;
                              $student{$username}=1;
- Line 906  sub upfile_drop_add {
+ Line 2525  sub upfile_drop_add {
                              }
                          }
                      } else {
-                         $r->print("<p><b>No password for $username</b><p>");
+                         $r->print('<br />'.
+       &mt('<b>[_1]</b>: Unable to enroll.  No password specified.',$username)
+                                   );
                      }
                  }
              }
          } # end of foreach (@studentdata)
-         $r->print('<p>Processed Students: '.$count);
+         $r->print("</p>\n<p>\n".&mt('Processed [_1] student(s).',$count).
+                   "</p>\n");
+         $r->print("<p>\n".
+                   &mt('If active, the new role will be available when the '.
+                   'students next log in to LON-CAPA.')."</p>\n");
          #####################################
          #           Drop students           #
          #####################################
-         if ($ENV{'form.fullup'} eq 'yes') {
+         if ($env{'form.fullup'} eq 'yes') {
-             $r->print('<h3>Dropping Students</h3>');
+             $r->print('<h3>'.&mt('Dropping Students')."</h3>\n");
              #  Get current classlist
-             my ($error,%currentlist)=&get_current_classlist
+             my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
-                 ($ENV{'course.'.$cid.'.domain'},
+             if (! defined($classlist)) {
-                  $ENV{'course.'.$cid.'.num'});
+                 $r->print(&mt('There are no students currently enrolled.').
-             if (defined($error)) {
+                           "\n");
-                 $r->print('<pre>ERROR:$error</pre>');
+             } else {
-             }
+                 # Remove the students we just added from the list of students.
-             if (defined(%currentlist)) {
-                 # Drop the students
                  foreach (@studentdata) {
                      my %entries=&Apache::loncommon::record_sep($_);
                      unless (($entries{$fields{'username'}} eq '') ||
                              (!defined($entries{$fields{'username'}}))) {
-                         delete($currentlist{$entries{$fields{'username'}}.
+                         delete($classlist->{$entries{$fields{'username'}}.
                                                  ':'.$domain});
                      }
                  }
-                 # Print out list of dropped students
+                 # Print out list of dropped students.
-                 &show_drop_list($r,%currentlist);
+                 &show_drop_list($r,$classlist,$keylist,'nosort');
-             } else {
-                 $r->print("There are no students currently enrolled.\n");
              }
          }
      } # end of unless
- Line 947  sub upfile_drop_add {
+ Line 2568  sub upfile_drop_add {
  sub drop_student_list {
      my $r=shift;
      my $count=0;
-     my @droplist;
+     my @droplist = &Apache::loncommon::get_env_multiple('form.droplist');
-     if (ref($ENV{'form.droplist'})) {
-         @droplist = @{$ENV{'form.droplist'}};
-     } else {
-         @droplist = ($ENV{'form.droplist'});
-     }
      foreach (@droplist) {
          my ($uname,$udom)=split(/\:/,$_);
-         my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
+         # drop student
-         if ($result eq 'ok') {
+         my $result = &modifystudent($udom,$uname,$env{'request.course.id'});
-             $r->print('Dropped '.$uname.' at '.$udom.'<br>');
+         if ($result eq 'ok' || $result eq 'ok:') {
+             $r->print(&mt('Dropped [_1]',$uname.'@'.$udom).'<br>');
+             $count++;
          } else {
-             $r->print('Error dropping '.$uname.' at '.$udom.': '.$result.
+             $r->print(
+           &mt('Error dropping [_1]:[_2]',$uname.'@'.$udom,$result).
                        '<br />');
          }
-         $count++;
      }
-     $r->print('<p><b>Dropped '.$count.' student(s).</b>');
+     $r->print('<p><b>'.&mt('Dropped [_1] student(s).',$count).'</b></p>');
-     $r->print('<p>Re-enrollment will re-activate data.');
+     $r->print('<p>'.&mt('Re-enrollment will re-activate data.')) if ($count);
  }
- # ================================================================ Main Handler
+ sub section_check_js {
+     my $groupslist;
+     my %curr_groups = &Apache::longroup::coursegroups();
+     if (%curr_groups) {
+         $groupslist = join('","',sort(keys(%curr_groups)));
+     }
+     return <<"END";
+ function validate(caller) {
+     var groups = new Array("$groupslist");
+     var secname = caller.value;
+     if ((secname == 'all') || (secname == 'none')) {
+         alert("'"+secname+"' may not be used as the name for a section, as it is a reserved word.\\nPlease choose a different section name.");
+         return 'error';
+     }
+     if (secname != '') {
+         for (var k=0; k<groups.length; k++) {
+             if (secname == groups[k]) {
+                 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.");
+                 return 'error';
+             }
+         }
+     }
+     return 'ok';
+ }
+ END
+ }
+ sub get_permission {
+     my %permission;
+     $permission{'view'} =
+         &Apache::lonnet::allowed('vcl',$env{'request.course.id'});
+     if (!$permission{'view'}) {
+ 	my $scope = $env{'request.course.id'}.'/'.$env{'request.course.sec'};
+ 	$permission{'view'} =  &Apache::lonnet::allowed('vcl',$scope);
+ 	if ($permission{'view'}) {
+ 	    $permission{'view_section'} = $env{'request.course.sec'};
+ 	}
+     }
+     $permission{'enrl'} =
+         &Apache::lonnet::allowed('cst',$env{'request.course.id'});
+     $permission{'grp_view'} =
+         &Apache::lonnet::allowed('vcg',$env{'request.course.id'});
+     $permission{'grp_manage'} =
+         &Apache::lonnet::allowed('mdg',$env{'request.course.id'});
+     my $allowed = 0;
+     foreach my $perm (values(%permission)) {
+ 	if ($perm) { $allowed=1; last; }
+     }
+     return (\%permission,$allowed);
+ }
+ ###################################################################
+ ###################################################################
+ =pod
+ =item &handler
+ The typical handler you see in all these modules.  Takes $r, the
+ http request, as an argument.
+ The response to the request is governed by two form variables
+  form.action      form.state     response
+  ---------------------------------------------------
+  undefined        undefined      print main menu
+  upload           undefined      print courselist upload menu
+  upload           got_file       deal with uploaded file,
+                                  print the upload managing menu
+  upload           enrolling      enroll students based on upload
+  drop             undefined      print the classlist ready to drop
+  drop             done           drop the selected students
+  enrollstudent    undefined      print student username domain form
+  enrollstudent    gotusername    print single student enroll menu
+  enrollstudent    enrolling      enroll student
+  classlist        undefined      print html classlist
+  classlist        csv            print csv classlist
+  modifystudent    undefined      print classlist to select student to modify
+  modifystudent    selected       print modify student menu
+  modifystudent    done           make modifications to student record
+ =cut
+ ###################################################################
+ ###################################################################
  sub handler {
      my $r=shift;
      if ($r->header_only) {
-         $r->content_type('text/html');
+         &Apache::loncommon::content_type($r,'text/html');
          $r->send_http_header;
          return OK;
      }
+     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+                                             ['action','state']);
+     &Apache::lonhtmlcommon::clear_breadcrumbs();
+     &Apache::lonhtmlcommon::add_breadcrumb
+         ({href=>"/adm/dropadd",
+           text=>"Enrollment Manager",
+           faq=>9,bug=>'Instructor Interface',});
      #  Needs to be in a course
-     if (($ENV{'request.course.fn'}) &&
+     if (! ($env{'request.course.fn'})) {
-         (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) {
+         # Not in a course
-         # Start page
+         $env{'user.error.msg'}=
-         $r->content_type('text/html');
+             "/adm/dropadd:cst:0:0:Cannot manage or view course groups, ".
-         $r->send_http_header;
+                                   "or drop or add students";
+         return HTTP_NOT_ACCEPTABLE;
+     }
+     #
+     my ($permission,$allowed) = &get_permission();
+     if (!$allowed) {
+         $env{'user.error.msg'}=
+ 	    "/adm/dropadd:cst:0:0:Cannot manage or view course groups, ".
+ 	                         "or drop or add students";
+         return HTTP_NOT_ACCEPTABLE;
+     }
+     #
+     # Only output the header information if they did not request csv format
+     #
+     # Start page
+     &Apache::loncommon::content_type($r,'text/html');
+     $r->send_http_header;
+     #
+     # Main switch on form.action and form.state, as appropriate
+     if (! exists($env{'form.action'})) {
+         $r->print(&header());
+         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
+         my $action = &print_main_menu($r,$permission);
+     } elsif ($env{'form.action'} eq 'upload' && $permission->{'enrl'}) {
          $r->print(&header());
-         # Phase one, initial screen
+         &Apache::lonhtmlcommon::add_breadcrumb
-         unless ($ENV{'form.phase'}) {
+             ({href=>'/adm/dropadd?action=upload&state=',
-             &menu_phase_one($r);
+               text=>"Upload Classlist"});
-         }
+         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Upload Classlist',
-         # Phase two
+ 						      'Course_Create_Class_List'));
-         if ($ENV{'form.associate'} eq 'Reverse Association') {
+         if (! exists($env{'form.state'})) {
-             $ENV{'form.phase'} = 'two';
+             &print_first_courselist_upload_form($r);
-             if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
+         } elsif ($env{'form.state'} eq 'got_file') {
-                 $ENV{'form.upfile_associate'} = 'reverse';
+             &print_upload_manager_form($r);
-             } else {
+         } elsif ($env{'form.state'} eq 'enrolling') {
-                 $ENV{'form.upfile_associate'} = 'forward';
+             if ($env{'form.datatoken'}) {
-             }
-         }
-         if ($ENV{'form.phase'} eq 'two') {
-             if ($ENV{'form.fileupload'}) {
-                 &menu_phase_two_upload($r);
-             } elsif ($ENV{'form.enroll'}) {
-                 &menu_phase_two_enroll($r);
-             } elsif ($ENV{'form.drop'}) {
-                 &menu_phase_two_drop($r);
-             }
-         }
-         # Phase three
-         if ($ENV{'form.phase'} eq 'three') {
-             if ($ENV{'form.datatoken'}) {
                  &upfile_drop_add($r);
+             } else {
+                 # Hmmm, this is an error
              }
+         } else {
+             &print_first_courselist_upload_form($r);
          }
-         # Phase four
+     } elsif ($env{'form.action'} eq 'drop' && $permission->{'enrl'}) {
-         if ($ENV{'form.phase'} eq 'four') {
+         $r->print(&header());
+         &Apache::lonhtmlcommon::add_breadcrumb
+             ({href=>'/adm/dropadd?action=drop',
+               text=>"Drop Students"});
+         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Drop Students',
+ 						      'Course_Drop_Student'));
+         if (! exists($env{'form.state'})) {
+             &print_drop_menu($r);
+         } elsif ($env{'form.state'} eq 'done') {
              &drop_student_list($r);
+         } else {
+             &print_drop_menu($r);
          }
-         # Phase five
+     } elsif ($env{'form.action'} eq 'enrollstudent' && $permission->{'enrl'}) {
-         if ($ENV{'form.phase'} eq 'five') {
+         my @search = ('srchterm','srchby','srchin','srchtype','srchdomain');
-             &enroll_single_student($r);
+         my ($jsback,$elements) = &Apache::loncreateuser::crumb_utilities();
-         }
+         my $jscript = '<script type="text/javascript">'.$jsback.'</script>';
-          # End
+         if ($env{'form.state'} eq 'gotusername') {
-         $r->print('</form></body></html>');
+             my $srch;
-     } else {
+             foreach my $item (@search) {
-         # Not in a course, or not allowed to modify parms
+                 $srch->{$item} = $env{'form.'.$item};
-         $ENV{'user.error.msg'}=
+             }
-             "/adm/dropadd:cst:0:0:Cannot drop or add students";
+             if ($env{'form.phase'} eq 'get_user_info') {
-         return HTTP_NOT_ACCEPTABLE;
+                 my ($currstate,$response,$forcenewuser,$results) =
+                     &Apache::loncreateuser::user_search_result($srch);
+                 if ($env{'form.currstate'} eq 'modify') {
+                     $currstate = $env{'form.currstate'};
+                 }
+                 if ($currstate eq 'select') {
+                     $r->print(&header());
+                     &Apache::lonhtmlcommon::add_breadcrumb
+                         ({href=>"javascript:backPage(document.usersrchform,'','')",
+                           text=>"Single user search"},
+                          {href=>"javascript:backPage(document.usersrchform,'get_user_info','select')",
+                           text=>"Select User",});
+                     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
+                                                                   'Course_Add_Student'));
+                     &Apache::loncreateuser::print_user_selection_page($r,
+                         $response,$srch,$results,'enrollstudent',\@search);
+                 } elsif ($currstate eq 'modify') {
+                     my ($ccuname,$ccdomain);
+                     if (($srch->{'srchby'} eq 'uname') &&
+                         ($srch->{'srchtype'} eq 'exact')) {
+                         $ccuname = $srch->{'srchterm'};
+                         $ccdomain= $srch->{'srchdomain'};
+                     } else {
+                         my @matchedunames = keys(%{$results});
+                         ($ccuname,$ccdomain) = split(/:/,$matchedunames[0]);
+                     }
+                     $ccuname =&LONCAPA::clean_username($ccuname);
+                     $ccdomain=&LONCAPA::clean_domain($ccdomain);
+                     &print_enroll_single_student_form($r,$jscript,$ccuname,
+                                                       $ccdomain,$srch,$response);
+                 } elsif ($currstate eq 'query') {
+                     $r->print(&header($jscript));
+                     &Apache::lonhtmlcommon::add_breadcrumb
+                         ({href=>"javascript:backPage(document.studentform,'','')",
+                           text=>"Single user search"});
+                     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
+                                                       'Course_Add_Student'));
+                     &Apache::loncreateuser::print_user_query_page($r,'enrollstudent');
+                 } else {
+                     &get_student_username_domain_form($r,$elements,$response,
+                                                       $srch,$forcenewuser);
+                 }
+             } elsif ($env{'form.phase'} eq 'userpicked') {
+                 my $ccuname = &LONCAPA::clean_username($env{'form.seluname'});
+                 my $ccdomain = &LONCAPA::clean_domain($env{'form.seludom'});
+                 &print_enroll_single_student_form($r,$jscript,$ccuname,
+                                                   $ccdomain,$srch);
+             } else {
+                 &get_student_username_domain_form($r,$elements);
+             }
+         } elsif ($env{'form.state'} eq 'enrolling') {
+             $r->print(&header($jscript));
+             &Apache::lonhtmlcommon::add_breadcrumb
+                 ({href=>"javascript:backPage(document.studentform,'','')",
+                   text=>"Single user search"});
+             if ($env{'form.prevphase'} eq 'userpicked') {
+                &Apache::lonhtmlcommon::add_breadcrumb
+                ({href=>"javascript:backPage(document.studentform,'get_user_info','select')",
+                  text=>"Select user",});
+             }
+             &Apache::lonhtmlcommon::add_breadcrumb
+                 ({href=>"javascript:backPage(document.studentform,'$env{'form.prevphase'}','modify')",
+                   text=>"Set enrollment",},
+                  {href=>"javascript:backPage(document.studentform,$env{'form.phase'},'')",
+                  text=>"Result",});
+             $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enroll Student',
+                                                       'Course_Add_Student'));
+             &enroll_single_student($r,\@search);
+         } else {
+             &get_student_username_domain_form($r,$elements);
+         }
+     } elsif ($env{'form.action'} eq 'classlist' && $permission->{'view'}) {
+         $r->print(&header());
+         &Apache::lonhtmlcommon::add_breadcrumb
+             ({href=>'/adm/dropadd?action=classlist',
+               text=>"View Classlist"});
+         $r->print(&Apache::lonhtmlcommon::breadcrumbs('View Classlist',
+ 						      'Course_View_Class_List'));
+         if (! exists($env{'form.state'})) {
+             &print_html_classlist($r,undef,$permission);
+         } elsif ($env{'form.state'} eq 'csv') {
+             &print_html_classlist($r,'csv',$permission);
+         } elsif ($env{'form.state'} eq 'excel') {
+             &print_html_classlist($r,'excel',$permission);
+         } else {
+             &print_html_classlist($r,undef,$permission);
+         }
+     } elsif ($env{'form.action'} eq 'modifystudent' && $permission->{'enrl'}) {
+         $r->print(&header());
+         &Apache::lonhtmlcommon::add_breadcrumb
+             ({href=>'/adm/dropadd?action=modifystudent',
+               text=>"Modify Student Data"});
+         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Modify Student Data',
+ 						      'Course_Modify_Student_Data'));
+         if (! exists($env{'form.state'})) {
+             &print_html_classlist($r,undef,$permission);
+         } elsif ($env{'form.state'} eq 'selected') {
+             &print_modify_student_form($r);
+         } elsif ($env{'form.state'} eq 'done') {
+             &modify_single_student($r);
+         } else {
+             &print_html_classlist($r,undef,$permission);
+         }
+     } else {
+         # We should not end up here, but I guess it is possible
+         &Apache::lonnet::logthis("Undetermined state in londropadd.pm.  ".
+                                  "form.action = ".$env{'form.action'}.
+                                  "Someone should fix this.");
+         $r->print(&header());
+         $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment Manager'));
+         &print_main_menu($r,$permission);
      }
+     #
+     # Finish up
+     $r->print('</form>'.&Apache::loncommon::end_page());
      return OK;
  }
+ ###################################################################
+ ###################################################################
 ;
  __END__

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

Removed from v.1.36
changed lines
	Added in v.1.171