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- adding the startreserve attribute

use Date::Manip;
use GDBM_File;
use Storable qw(nfreeze thaw);

my $fname="/home/httpd/lonUsers/annarbor/9/7/7/9778182de3942c1annarborl2/slots.db";
my %db;
if (! tie(%db,'GDBM_File',$fname,&GDBM_WRITER(),0640)) {
    warn "Unable to tie to $fname";
    exit;
}

=pod

slots can have these parts;:

Required:
  starttime - unix time that a slot start
  endtime - unix time that a slot ends
  startreserve - unix time that a slot can start being reserved

Optional:
  type - either 'preassigned' or 'schedulable_student'
         (controls whether slotrequest.pm will allow one to select it)
  ip - comma seperated list of ip address or wildcard ranges or
       wilcard hostnames, or [] style range of allowable client IP
       addresses
  proctor - comma seperated list of user@domain that can checkin a user
  description - string that will displayed to people when talking about 
                this slot
  maxspace - integer (number of people that can schedule this space)
             (if unspecfied no limit is used)
  symb - arrayref of symbs that can be scheduled to be done in this slot

Possibly Need: (but not yet supported)
  uniqperiod - if the user has a reservation that has a uniqpersion
               that overlaps this dn't allow them to schedule this
               reservation


=cut

$db{'slot1'}=
    &freeze_escape({
	'type'      => 'preassigned',
	'startreserve' => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'starttime' => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'endtime'   => &UnixDate("Aug 30th 01:00:00 2004","%s"),
	'ip'        => "*albertelli.com",
	'proctor'   => 'testuser@annarbor',
    });
$db{'slot2'}=
    &freeze_escape({
	'type'      => 'preassigned',
	'startreserve' => &UnixDate("Aug 30th 00:00:00 2006","%s"),
	'starttime' => &UnixDate("Aug 30th 00:00:00 2006","%s"),
	'endtime'   => &UnixDate("Aug 30th 00:00:00 2006","%s"),
	'ip'        => "*albertelli.com",
	'proctor'   => 'testuser@annarbor',
    });
$db{'slot3'}=
    &freeze_escape({
	'type'      => 'preassigned',
	'description' => 'slot3',
	'startreserve' => &UnixDate("Aug 29th 00:00:00 2004","%s"),
	'starttime' => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'endtime'   => &UnixDate("Aug 30th 00:00:00 2006","%s"),
        'endtime'   => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'ip'        => "1.2.3.4",
	'ip'        => "*albertelli.com",
	'proctor'   => 'testuser@annarbor',
    });
$db{'slot4'}=
    &freeze_escape({
	'type'      => 'preassigned',
	'startreserve' => &UnixDate("Aug 29th 00:00:00 2004","%s"),
	'starttime' => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'endtime'   => &UnixDate("Aug 30th 00:00:00 2006","%s"),
	'endtime'   => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'ip'        => "*albertelli.com",
	'proctor'   => 'testuser@annarbor',
    });
$db{'slot5'}=
    &freeze_escape({
	'type'      => 'schedulable_student',
	'description' => undef,#'Aug 30th 4 P.M., Room 123 Kedzie',
	'startreserve' => &UnixDate("Aug 29th 00:00:00 2004","%s"),
	#'starttime' => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'starttime' => &UnixDate("Aug 30th 00:00:00 2006","%s"),
	'endtime'   => &UnixDate("Aug 30th 00:00:00 2006","%s"),
	#'endtime'   => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'ip'        => "*albertelli.com",
	'proctor'   => 'testuser@annarbor',
    });
$db{'slot6'}=
    &freeze_escape({
	'type'      => 'schedulable_student',
	'description' => 'Aug 31th 4 P.M., Room 222 Computer Center',
	'startreserve' => &UnixDate("Aug 29th 00:00:00 2004","%s"),
	'starttime' => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'endtime'   => &UnixDate("Aug 30th 00:00:00 2006","%s"),
	#'endtime'   => &UnixDate("Aug 30th 00:00:00 2004","%s"),
	'ip'        => "*albertelli.com",
	'proctor'   => 'testuser@annarbor',
    });

sub freeze_escape {
    my ($value)=@_;
    if (ref($value)) {
	$value=&nfreeze($value);
	return '__FROZEN__'.&escape($value);
    }
    return &escape($value);
}

sub escape {
    my $str=shift;
    $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
    return $str;
}

sub thaw_unescape {
    my ($value)=@_;
    if ($value =~ /^__FROZEN__/) {
	substr($value,0,10,undef);
	$value=&unescape($value);
	return &thaw($value);
    }
    return &unescape($value);
}

sub unescape {
    my $str=shift;
    $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
    return $str;
}