--- loncom/interface/Attic/londropadd.pm 2000/12/26 16:39:28 1.1 +++ loncom/interface/Attic/londropadd.pm 2002/08/01 16:48:21 1.44 @@ -1,12 +1,37 @@ # The LearningOnline Network with CAPA # Handler to drop and add students in courses # +# $Id: londropadd.pm,v 1.44 2002/08/01 16:48:21 bowersj2 Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# 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) @@ -14,60 +39,1123 @@ # 11/20,11/21,11/22,11/23,11/24,11/25,11/27,11/28, # 12/08,12/12 Gerd Kortemeyer) # -# 12/26 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::Constants qw(:common :http REDIRECT); +# ================================================================ Print header -# ================================================================ Main Handler - -sub handler { - my $r=shift; - - if ($r->header_only) { - $r->content_type('text/html'); - $r->send_http_header; - return OK; - } - -# ----------------------------------------------------- Needs to be in a course - - if (($ENV{'request.course.fn'}) && - (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) { - -# ------------------------------------------------------------------ Start page - $r->content_type('text/html'); - $r->send_http_header; - $r->print(< -LON-CAPA Student Drop/Add +LON-CAPA Enrollment Manager -

Drop/Add Students

-
-

Course: $ENV{'course.'.$ENV{'request.course.id'}.'.description'}

+

$ENV{'course.'.$ENV{'request.course.id'}.'.description'}

+

Enrollment Manager

+ ENDHEAD +} + +# =========== 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; + $courseid=~s/^(\w)/\/$1/; + my %roles = &Apache::lonnet::dump('roles',$udom,$unam); + my ($tmp) = keys(%roles); + # Bail out if we were unable to get the students roles + return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i); + # Go through the roles looking for enrollment in this course + my $result = ''; + foreach my $course (keys(%roles)) { + if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) { + # We are in this course + my $section=$1; + $section='' if ($course eq $courseid.'_st'); + if ( ((!$section) && (!$csec)) || ($section ne $csec) ) { + my (undef,$end,$start)=split(/\_/,$roles{$course}); + my $now=time; + if (!($start && ($now<$start)) || !($end && ($now>$end))) { + my $reply=&Apache::lonnet::modifystudent + ($udom,$unam,'','','','','','','', + $section,time,undef,undef,$desiredhost); + $result .= $reply.':'; + } + } + } + } + if ($result eq '') { + $result eq 'Unable to find section for this student'; + } else { + $result =~ s/(ok:)+/ok/g; + } + return $result; +} + +# ============ build a domain and server selection form +sub domain_form { + my ($defdom) = @_; + # Set up domain and server selection forms + # + # Get the domains + my @domains = &Apache::loncommon::get_domains(); + # build up the menu information to be passed to + # &Apache::loncommon::linked_select_forms + my %select_menus; + foreach my $dom (@domains) { + # set up the text for this domain + $select_menus{$dom}->{'text'}= $dom; + # we want a choice of 'default' as the default in the second menu + $select_menus{$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); + foreach my $server (keys(%servers)) { + $select_menus{$dom}->{'select2'}->{$server} + = "$server $servers{$server}"; + } + } + my $result = &Apache::loncommon::linked_select_forms + ('studentform',' with home server ',$defdom, + 'lcdomain','lcserver',\%select_menus); + return $result; +} + +# ============================================================== Menu Phase One +sub menu_phase_one { + my $r=shift; + my $upfile_select=&Apache::loncommon::upfile_select_html(); + my $create_classlist_help = + &Apache::loncommon::help_open_topic("Course_Create_Class_List", + "How do I create a class list from a spreadsheet"); + my $create_csv_help = + &Apache::loncommon::help_open_topic("Course_Convert_To_CSV", + "How do I create a CSV file from a spreadsheet"); + $r->print(< +
+

Upload a courselist

+$upfile_select +

+
+$create_classlist_help
+$create_csv_help + +

+

Enroll a single student

+

+
+

Classlist

+

+

+
+

Drop students

+

+ENDUPFORM +} + +sub phase_two_header { + my ($r,$datatoken,$distotal,$krbdefdom)=@_; + my $javascript; + if ($ENV{'form.upfile_associate'} eq 'reverse') { + $javascript=&phase_two_javascript_reverse_associate(); + } else { + $javascript=&phase_two_javascript_forward_associate(); + } + my $javascript_validations=&javascript_validations($krbdefdom); + $r->print(<Uploading Class List +
+

Identify fields

+Total number of records found in file: $distotal
+Enter as many fields as you can. The system will inform you and bring you back +to this page if the data selected is insufficient to run your class.
+ + + + + + + +
+ +ENDPICK +} + +sub javascript_validations { + my ($krbdefdom)=@_; + my %param = ( formname => 'studentform', + kerb_def_dom => $krbdefdom ); + my $authheader = &Apache::loncommon::authform_header(%param); + return (<print(''); - } else { -# ----------------------------- Not in a course, or not allowed to modify parms - $ENV{'user.error.msg'}= - "/adm/dropadd:cst:0:0:Cannot drop or add students"; - return HTTP_NOT_ACCEPTABLE; + } + + function dateset() { + if (document.studentform.pres_marker.value=='end') { + document.studentform.enddate.value= + document.studentform.pres_value.value; + } + if (document.studentform.pres_marker.value=='start') { + document.studentform.startdate.value= + document.studentform.pres_value.value; + } + pclose(); + } + +$authheader +ENDPICK + +} + +sub phase_two_javascript_forward_associate { + return(<=2) && (tw<=6)) { foundname=1; } + if (tw==7) { foundid=1; } + if (tw==8) { foundsec=1; } + if (tw==9) { foundpwd=1; } + } + verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec); +} + +function flip(vf,tf) { + var nw=eval('vf.f'+tf+'.selectedIndex'); + var i; + 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) { + for (i=2;i<=5;i++) { + eval('vf.f'+i+'.selectedIndex=0;') + } + } + if (nw==2) { + for (i=0;i<=vf.nfields.value;i++) { + if ((eval('vf.f'+i+'.selectedIndex')>=3) && + (eval('vf.f'+i+'.selectedIndex')<=6)) { + eval('vf.f'+i+'.selectedIndex=0;') + } + } + } + if ((nw>=3) && (nw<=6)) { + for (i=0;i<=vf.nfields.value;i++) { + if (eval('vf.f'+i+'.selectedIndex')==2) { + eval('vf.f'+i+'.selectedIndex=0;') + } + } + } + if (nw==9) { + changed_radio('int',document.studentform); + set_auth_radio_buttons('int',document.studentform); + vf.intarg.value=''; + vf.krbarg.value=''; + vf.locarg.value=''; } - return OK; } -1; -__END__ +function clearpwd(vf) { + var i; + for (i=0;i<=vf.nfields.value;i++) { + if (eval('vf.f'+i+'.selectedIndex')==9) { + eval('vf.f'+i+'.selectedIndex=0;') + } + } +} +ENDPICK +} +sub phase_two_javascript_reverse_associate { + return(<=1) && (i<=5)) && tw!=0 ) { foundname=1; } + if (i==6 && tw!=0) { foundid=1; } + if (i==7 && tw!=0) { foundsec=1; } + if (i==8 && tw!=0) { foundpwd=1; } + } + verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec); +} +function flip(vf,tf) { + var nw=eval('vf.f'+tf+'.selectedIndex'); + var i; + // picked the all one one name field, reset the other name ones to blank + if (tf==1 && nw!=0) { + for (i=2;i<=5;i++) { + eval('vf.f'+i+'.selectedIndex=0;') + } + } + //picked one of the piecewise name fields, reset the all in + //one field to blank + if ((tf>=2) && (tf<=5) && (nw!=0)) { + eval('vf.f1.selectedIndex=0;') + } + // intial password specified, pick internal authentication + if (tf==8 && nw!=0) { + changed_radio('int',document.studentform); + set_auth_radio_buttons('int',document.studentform); + vf.krbarg.value=''; + vf.intarg.value=''; + vf.locarg.value=''; + } +} + +function clearpwd(vf) { + var i; + if (eval('vf.f8.selectedIndex')!=0) { + eval('vf.f8.selectedIndex=0;') + } +} +ENDPICK +} + +sub phase_two_end { + my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_; + my %param = ( formname => 'document.studentform'); + 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(< + + +

Login Type

+

Note: this will not take effect if the user already exists

+

+$krbform +

+

+$intform +

+

+$locform +

+

LON-CAPA Domain for Students

+LON-CAPA domain: $domform

+

Starting and Ending Dates

+ + + + + +Set Starting Date

+ +Set Ending Date

+

Full Update

+ Full update +(also print list of users not enrolled anymore)

+

ID/Student Number

+ +Disable ID/Student Number Safeguard and Force Change of Conflicting IDs +(only do if you know what you are doing)

+
+Note: for large courses, this operation might be time consuming. +ENDPICK +} + +# ======================================================= Menu Phase Two Upload +sub menu_phase_two_upload { + my $r=shift; + + my $datatoken; + if (!$ENV{'form.datatoken'}) { + $datatoken=&Apache::loncommon::upfile_store($r); + } else { + $datatoken=$ENV{'form.datatoken'}; + &Apache::loncommon::load_tmp_file($r); + } + my @records=&Apache::loncommon::upfile_record_sep(); + 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); + my $i; + my $keyfields; + if ($total>=0) { + my @d=(['username','Username'],['names','Last Name, First Names'], + ['fname','First Name'],['mname','Middle Names/Initials'], + ['lname','Last Name'],['gen','Generation'], + ['id','ID/Student Number'],['sec','Group/Section'], + ['ipwd','Initial Password']); + if ($ENV{'form.upfile_associate'} eq 'reverse') { + &Apache::loncommon::csv_print_samples($r,\@records); + $i=&Apache::loncommon::csv_print_select_table($r,\@records,\@d); + foreach (@d) { $keyfields.=$_->[0].','; } + chop($keyfields); + } else { + unshift(@d,['none','']); + $i=&Apache::loncommon::csv_samples_select_table($r,\@records,\@d); + my %sone=&Apache::loncommon::record_sep($records[0]); + $keyfields=join(',',sort(keys(%sone))); + } + } + &phase_two_end($r,$i,$keyfields,$defdom,$today,$halfyear); +} + +# ======================================================= Enroll single student +sub enroll_single_student { + my $r=shift; + $r->print('

Enrolling Student

'); + $r->print('

Enrolling '.$ENV{'form.cuname'}." in domain ". + $ENV{'form.lcdomain'}.'

'); + if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&& + ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) { + # Deal with home server selection + my $domain=$ENV{'form.lcdomain'}; + my $desiredhost = $ENV{'form.lcserver'}; + if (lc($desiredhost) eq 'default') { + $desiredhost = undef; + } else { + my %home_servers = &Apache::loncommon::get_home_servers($domain); + if (! exists($home_servers{$desiredhost})) { + $r->print('Error:'. + 'Invalid home server specified'); + return; + } + } + $r->print(" with server $desiredhost :") if (defined($desiredhost)); + # End of home server selection logic + my $amode=''; + my $genpwd=''; + if ($ENV{'form.login'} eq 'krb') { + $amode='krb4'; + $genpwd=$ENV{'form.krbarg'}; + } elsif ($ENV{'form.login'} eq 'int') { + $amode='internal'; + $genpwd=$ENV{'form.intarg'}; + } elsif ($ENV{'form.login'} eq 'loc') { + $amode='localauth'; + $genpwd=$ENV{'form.locarg'}; + if (!$genpwd) { $genpwd=" "; } + } + my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'}, + $ENV{'form.lcdomain'}); + if ((($amode) && ($genpwd)) || ($home ne 'no_host')) { + &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'}, + $ENV{'request.course.id'},$ENV{'form.csec'}, + $desiredhost); + $r->print(&Apache::lonnet::modifystudent( + $ENV{'form.lcdomain'},$ENV{'form.cuname'}, + $ENV{'form.cstid'},$amode,$genpwd, + $ENV{'form.cfirst'},$ENV{'form.cmiddle'}, + $ENV{'form.clast'},$ENV{'form.cgen'}, + $ENV{'form.csec'},$ENV{'form.enddate'}, + $ENV{'form.startdate'},$ENV{'form.forceid'}, + $desiredhost)); + } else { + $r->print('

ERROR '. + 'Invalid login mode or password. '. + 'Unable to enroll '.$ENV{'form.cuname'}.'.

'); + } + } else { + $r->print('Invalid username or domain'); + } +} + +# ======================================================= Menu Phase Two Enroll +sub menu_phase_two_enroll { + my $r=shift; + $r->print("

Enroll One Student

"); + my ($krbdefdom) = $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/; + $krbdefdom=~tr/a-z/A-Z/; + my $today = time; + my $halfyear = $today+15552000; + my $defdom=$r->dir_config('lonDefDomain'); + my $javascript_validations=&javascript_validations($krbdefdom); + # Set up authentication forms + my %param = ( formname => 'document.studentform'); + 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 $domform = &domain_form($defdom); + # Print it all out + $r->print(< +function verify(vf) { + var founduname=0; + var foundpwd=0; + var foundname=0; + var foundid=0; + var foundsec=0; + var tw; + if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') && + (typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) { + founduname=1; + } + if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') && + (typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) { + foundname=1; + } + if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) { + foundsec=1; + } + if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) { + foundid=1; + } + if (founduname==0) { + alert('You need to specify at least the username and domain fields'); + return; + } + verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec); +} + +$javascript_validations + +function clearpwd(vf) { + //nothing else needs clearing +} + + +

Personal Data

+First Name:
+Middle Name:
+Last Name:
+Generation: + +

ID/Student Number:

+ +

Group/Section:

+ +

Login Data

+

Username:

+

Domain: $domform

+

Note: login settings below will not take effect if the user already exists +

+$krbform +

+$intform +

+$locform +

+

Starting and Ending Dates

+ + + + + +

+Set Starting Date +

+Set Ending Date +

+

ID/Student Number

+ +Disable ID/Student Number Safeguard and Force Change of Conflicting IDs +(only do if you know what you are doing)

+
+ +

+ENDSENROLL +} + +# =================================================== get the current classlist +sub get_current_classlist { + my ($domain,$identifier) = @_; + # domain is the domain the class is being run in + # identifier is the internal, unique identifier for the class. + my %currentlist=(); + my $now=time; + my %results=&Apache::lonnet::dump('classlist',$domain,$identifier); + my ($tmp) = keys(%results); + 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 { + $tmp =~ s/^error://; + return ($tmp,undef); + } +} + +# ========================================================= Menu Phase Two Drop +sub menu_phase_two_drop { + my $r=shift; + $r->print("

Drop Students

"); + my $cid=$ENV{'request.course.id'}; + my ($error,%currentlist)=&get_current_classlist + ($ENV{'course.'.$cid.'.domain'},$ENV{'course.'.$cid.'.num'}); + if (defined($error)) { + if ($error =~ /^No such file or directory/) { + $r->print("There are no students currently enrolled.\n"); + } else { + $r->print("
ERROR:$error
"); + } + } elsif (!defined(%currentlist)) { + $r->print("There are no students currently enrolled.\n"); + } else { + # Print out the available choices + &show_drop_list($r,%currentlist); + } +} + +# ============================================== view classlist +sub menu_phase_two_view { + my $r=shift; + $r->print("

Current Classlist

"); + my $cid=$ENV{'request.course.id'}; + my ($error,%currentlist)=&get_current_classlist + ($ENV{'course.'.$cid.'.domain'},$ENV{'course.'.$cid.'.num'}); + if (defined($error)) { + if ($error =~ /^No such file or directory/) { + $r->print("There are no students currently enrolled.\n"); + } else { + $r->print("
ERROR:$error
"); + } + } elsif (!defined(%currentlist)) { + $r->print("There are no students currently enrolled.\n"); + } else { + # Print out the available choices + &show_class_list($r,'view',%currentlist); + } +} + +# ============================================== view classlist +sub menu_phase_two_viewcsv { + my $r=shift; + my $cid=$ENV{'request.course.id'}; + my ($error,%currentlist)=&get_current_classlist + ($ENV{'course.'.$cid.'.domain'},$ENV{'course.'.$cid.'.num'}); + if (defined($error)) { + if ($error =~ /^No such file or directory/) { + $r->print("There are no students currently enrolled.\n"); + } else { + $r->print("
ERROR:$error
"); + } + } elsif (!defined(%currentlist)) { + $r->print("There are no students currently enrolled.\n"); + } else { + &show_class_list($r,'csv',%currentlist); + } +} + +# =================================================== Show student list to drop +sub show_class_list { + my ($r,$mode,%currentlist)=@_; + my $cid=$ENV{'request.course.id'}; + # Print out header + if ($mode eq 'view') { + $r->print(< + + + +END + } elsif ($mode eq 'csv') { + $r->print(<print( ($mode eq 'view' ? + '' :'')); + } else { + if ($mode eq 'view') { + $r->print(<<"END"); + + + + + + + + +END + } elsif ($mode eq 'csv') { + my @line = (); + foreach ($sname,$sdom,$reply{$sname}, + $info{'lastname'},$info{'firstname'}, + $info{'middlename'},$info{'generation'},$ssec) { + push @line,&Apache::loncommon::csv_translate($_); + } + my $tmp = $"; + $" = '","'; + $r->print("\"@line\"\n"); + $" = $tmp; + } + } + } + $r->print('
usernamedomainIDstudent namegenerationsection
' :''). + 'Internal error: unable to get environment '. + 'for '.$sname.' in domain '.$sdom. + ( $mode eq 'view' ?'
$sname$sdom$reply{$sname}$info{'lastname'}, $info{'firstname'} $info{'middlename'}$info{'generation'}$ssec

') if ($mode eq 'view'); +} + +# =================================================== Show student list to drop +sub show_drop_list { + my ($r,%currentlist)=@_; + my $cid=$ENV{'request.course.id'}; + $r->print(<<'END'); + +

+ + + + + +END + foreach (sort keys %currentlist) { + my ($sname,$sdom)=split(/\:/,$_); + my %reply=&Apache::lonnet::idrget($sdom,$sname); + my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid); + my %info=&Apache::lonnet::get('environment', + ['firstname','middlename', + 'lastname','generation'], + $sdom, $sname); + my ($tmp) = keys(%info); + if ($tmp =~ /^(con_lost|error|no_such_host)/i) { + $r->print(''); + } else { + $r->print(<<"END"); + + + + + + + + + +END + } + } + $r->print('
 usernamedomainIDstudent namegenerationsection
'. + 'Internal error: unable to get environment '. + 'for '.$sname.' in domain '.$sdom.'
$sname$sdom$reply{$sname}$info{'lastname'}, $info{'firstname'} $info{'middlename'}$info{'generation'}$ssec

'); + $r->print(<<"END"); +

+   + +

+END +} + +# ================================================= Drop/Add from uploaded file +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'}); + my $cid = $ENV{'request.course.id'}; + my %fields=(); + for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) { + if ($ENV{'form.upfile_associate'} eq 'reverse') { + if ($ENV{'form.f'.$i} ne 'none') { + $fields{$keyfields[$i]}=$ENV{'form.f'.$i}; + } + } else { + $fields{$ENV{'form.f'.$i}}=$keyfields[$i]; + } + } + # + my $startdate = $ENV{'form.startdate'}; + my $enddate = $ENV{'form.enddate'}; + if ($startdate=~/\D/) { $startdate=''; } + if ($enddate=~/\D/) { $enddate=''; } + # Determine domain and desired host (home server) + my $domain=$ENV{'form.lcdomain'}; + my $desiredhost = $ENV{'form.lcserver'}; + if (lc($desiredhost) eq 'default') { + $desiredhost = undef; + } else { + my %home_servers = &Apache::loncommon::get_home_servers($domain); + if (! exists($home_servers{$desiredhost})) { + $r->print('Error:'. + 'Invalid home server specified'); + return; + } + } + # Determine authentication mechanism + my $amode = ''; + my $genpwd = ''; + if ($ENV{'form.login'} eq 'krb') { + $amode='krb4'; + $genpwd=$ENV{'form.krbarg'}; + } elsif ($ENV{'form.login'} eq 'int') { + $amode='internal'; + if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) { + $genpwd=$ENV{'form.intarg'}; + } + } elsif ($ENV{'form.login'} eq 'loc') { + $amode='localauth'; + if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) { + $genpwd=$ENV{'form.locarg'}; + } + } + unless (($domain=~/\W/) || ($amode eq '')) { + ####################################### + ## Enroll Students ## + ####################################### + $r->print('

Enrolling Students

'); + my $count=0; + my $flushc=0; + my %student=(); + # Get new classlist + foreach (@studentdata) { + my %entries=&Apache::loncommon::record_sep($_); + # Determine student name + unless (($entries{$fields{'username'}} eq '') || + (!defined($entries{$fields{'username'}}))) { + my ($fname, $mname, $lname,$gen) = ('','','',''); + if (defined($fields{'names'})) { + ($lname,$fname,$mname)=($entries{$fields{'names'}}=~ + /([^\,]+)\,\s*(\w+)\s*(.*)$/); + } else { + if (defined($fields{'fname'})) { + $fname=$entries{$fields{'fname'}}; + } + if (defined($fields{'mname'})) { + $mname=$entries{$fields{'mname'}}; + } + if (defined($fields{'lname'})) { + $lname=$entries{$fields{'lname'}}; + } + if (defined($fields{'gen'})) { + $gen=$entries{$fields{'gen'}}; + } + } + if ($entries{$fields{'username'}}=~/\W/) { + $r->print('

Unacceptable username: '. + $entries{$fields{'username'}}.' for user '. + $fname.' '.$mname.' '.$lname.' '.$gen.'

'); + } else { + # determine section number + my $sec=''; + my $username=$entries{$fields{'username'}}; + if (defined($fields{'sec'})) { + if (defined($entries{$fields{'sec'}})) { + $sec=$entries{$fields{'sec'}}; + } + } + # determine student id number + my $id=''; + if (defined($fields{'id'})) { + if (defined($entries{$fields{'id'}})) { + $id=$entries{$fields{'id'}}; + } + $id=~tr/A-Z/a-z/; + } + # determine student password + my $password=''; + if ($genpwd) { + $password=$genpwd; + } else { + if (defined($fields{'ipwd'})) { + if ($entries{$fields{'ipwd'}}) { + $password=$entries{$fields{'ipwd'}}; + } + } + } + if ($password) { + &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'},$desiredhost); + if ($reply ne 'ok') { + $r->print('

'. + 'Error enrolling '.$username.': '. + $reply.'

'); + } else { + $count++; $flushc++; + $student{$username}=1; + $r->print('. '); + if ($flushc>15) { + $r->rflush; + $flushc=0; + } + } + } else { + $r->print("

No password for $username

"); + } + } + } + } # end of foreach (@studentdata) + $r->print('

Processed Students: '.$count); + ##################################### + # Drop students # + ##################################### + if ($ENV{'form.fullup'} eq 'yes') { + $r->print('

Dropping Students

'); + # Get current classlist + my ($error,%currentlist)=&get_current_classlist + ($ENV{'course.'.$cid.'.domain'}, + $ENV{'course.'.$cid.'.num'}); + if (defined($error)) { + $r->print('
ERROR:$error
'); + } + 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'}}. + ':'.$domain}); + } + } + # Print out list of dropped students + &show_drop_list($r,%currentlist); + } else { + $r->print("There are no students currently enrolled.\n"); + } + } + } # end of unless +} + +# ================================================================== Phase four +sub drop_student_list { + my $r=shift; + my $count=0; + my @droplist; + if (ref($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'}); + if ($result eq 'ok' || $result eq 'ok:') { + $r->print('Dropped '.$uname.' at '.$udom.'
'); + } else { + $r->print('Error dropping '.$uname.' at '.$udom.': '.$result. + '
'); + } + $count++; + } + $r->print('

Dropped '.$count.' student(s).'); + $r->print('

Re-enrollment will re-activate data.'); +} + +# ================================================================ Main Handler +sub handler { + my $r=shift; + if ($r->header_only) { + $r->content_type('text/html'); + $r->send_http_header; + return OK; + } + # Needs to be in a course + if (($ENV{'request.course.fn'}) && + (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'}))) { + # Start page + $r->content_type('text/html') if (! exists($ENV{'form.viewcsv'})); + $r->send_http_header; + $r->print(&header()) if (! exists($ENV{'form.viewcsv'})); + # Phase one, initial screen + unless ($ENV{'form.phase'}) { + &menu_phase_one($r); + } + # Phase two + if ($ENV{'form.associate'} eq 'Reverse Association') { + $ENV{'form.phase'} = 'two'; + if ( $ENV{'form.upfile_associate'} ne 'reverse' ) { + $ENV{'form.upfile_associate'} = 'reverse'; + } else { + $ENV{'form.upfile_associate'} = 'forward'; + } + } + if ($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); + } elsif ($ENV{'form.view'}) { + &menu_phase_two_view($r); + } elsif ($ENV{'form.viewcsv'}) { + &menu_phase_two_viewcsv($r); + } + } + # Phase three + if ($ENV{'form.phase'} eq 'three') { + if ($ENV{'form.datatoken'}) { + &upfile_drop_add($r); + } + } + # Phase four + if ($ENV{'form.phase'} eq 'four') { + &drop_student_list($r); + } + # Phase five + if ($ENV{'form.phase'} eq 'five') { + &enroll_single_student($r); + } + # End + $r->print('') if (! exists($ENV{'form.viewcsv'})); + } else { + # Not in a course, or not allowed to modify parms + $ENV{'user.error.msg'}= + "/adm/dropadd:cst:0:0:Cannot drop or add students"; + return HTTP_NOT_ACCEPTABLE; + } + return OK; +} + +1; +__END__