loncom/homework/lonhomework.pm - diff

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Diff for /loncom/homework/lonhomework.pm between versions 1.243 and 1.304

version 1.243, 2006/05/09 19:03:02	version 1.304, 2009/03/04 16:00:14
Line 49 use Apache::matchresponse();	Line 49 use Apache::matchresponse();
use Apache::chemresponse();	use Apache::chemresponse();
use Apache::drawimage();	use Apache::drawimage();
use Apache::Constants qw(:common);	use Apache::Constants qw(:common);
use HTML::Entities();
use Apache::loncommon();	use Apache::loncommon();
use Apache::lonlocal;	use Apache::lonlocal;
use Time::HiRes qw( gettimeofday tv_interval );	use Time::HiRes qw( gettimeofday tv_interval );
use Apache::lonnet();	use HTML::Entities();
	use File::Copy();

# FIXME - improve commenting	# FIXME - improve commenting

Line 63 BEGIN {	Line 63 BEGIN {
}	}


	=pod

	=item set_bubble_lines()

	Called at analysis time to set the bubble lines
	hash for the problem.. This should be called in the
	end_problemtype tag in analysis mode.

	We fetch the hash of part id counters from lonxml
	and push them into analyze:{part_id.bubble_lines}.

	=cut

	sub set_bubble_lines {
	my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();

	foreach my $key (keys(%bubble_counters)) {
	$Apache::lonhomework::analyze{"$key.bubble_lines"} =
	$bubble_counters{"$key"};
	}
	}

#	#
# Decides what targets to render for.	# Decides what targets to render for.
# Implicit inputs:	# Implicit inputs:
Line 86 sub get_target {	Line 108 sub get_target {
} elsif ( defined($env{'form.grade_target'} )	} elsif ( defined($env{'form.grade_target'} )
&& ($Apache::lonhomework::viewgrades eq 'F' )) {	&& ($Apache::lonhomework::viewgrades eq 'F' )) {
return ($env{'form.grade_target'});	return ($env{'form.grade_target'});
	} elsif ( $env{'form.grade_target'} eq 'webgrade'
	&& ($Apache::lonhomework::queuegrade eq 'F' )) {
	return ($env{'form.grade_target'});
}	}
if ($env{'form.webgrade'} &&	if ($env{'form.webgrade'} &&
$Apache::lonhomework::modifygrades eq 'F') {	($Apache::lonhomework::modifygrades eq 'F'
	\|\| $Apache::lonhomework::queuegrade eq 'F' )) {
return ('grade','webgrade');	return ('grade','webgrade');
}	}
if ( defined($env{'form.submitted'}) &&	if ( defined($env{'form.submitted'}) &&
( !defined($env{'form.resetdata'})) &&
( !defined($env{'form.newrandomization'}))) {	( !defined($env{'form.newrandomization'}))) {
return ('grade', 'web');	return ('grade', 'web');
} else {	} else {
Line 109 sub get_target {	Line 134 sub get_target {
return ('web');	return ('web');
}	}
} else {	} else {
if ( $env{'form.problemmode'} eq &mt('View') \|\|	if ($env{'form.problemstate'} eq 'WEB_GRADE') {
$env{'form.problemmode'} eq &mt('Discard Edits and View')) {	#$env{'form.webgrade'} = 'yes';
	return ('grade','webgrade','answer');
	} elsif (($env{'form.problemmode'} eq 'view') \|\|
	($env{'form.problemmode'} eq 'discard')) {
if ( defined($env{'form.submitted'}) &&	if ( defined($env{'form.submitted'}) &&
(!defined($env{'form.resetdata'})) &&	(!defined($env{'form.resetdata'})) &&
(!defined($env{'form.newrandomization'}))) {	(!defined($env{'form.newrandomization'}))) {
Line 118 sub get_target {	Line 146 sub get_target {
} else {	} else {
return ('web','answer');	return ('web','answer');
}	}
} elsif ( $env{'form.problemmode'} eq &mt('Edit') \|\|	} elsif ($env{'form.problemmode'} eq 'edit') {
$env{'form.problemmode'} eq 'Edit') {
if ( $env{'form.submitted'} eq 'edit' ) {	if ( $env{'form.submitted'} eq 'edit' ) {
if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {	if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
return ('modified','web','answer');	return ('modified','web','answer');
} else {	} else {
return ('modified','no_output_web','edit');	return ('modified','no_output_web','edit');
Line 157 sub proctor_checked_in {	Line 184 sub proctor_checked_in {
my ($slot_name,$slot,$type)=@_;	my ($slot_name,$slot,$type)=@_;
my @possible_proctors=split(",",$slot->{'proctor'});	my @possible_proctors=split(",",$slot->{'proctor'});

	return 1 if (!@possible_proctors);

my $key;	my $key;
if ($type eq 'Task') {	if ($type eq 'Task') {
my $version=$Apache::lonhomework::history{'resource.0.version'};	my $version=$Apache::lonhomework::history{'resource.0.version'};
Line 164 sub proctor_checked_in {	Line 193 sub proctor_checked_in {
} elsif ($type eq 'problem') {	} elsif ($type eq 'problem') {
$key ='resource.0.checkedin';	$key ='resource.0.checkedin';
}	}
	# backward compatability, used to be username@domain,
	# now is username:domain
	my $who = $Apache::lonhomework::history{$key};
	if ($who !~ /:/) {
	$who =~ tr/@/:/;
	}
foreach my $possible (@possible_proctors) {	foreach my $possible (@possible_proctors) {
if ($Apache::lonhomework::history{$key} eq $possible	if ($who eq $possible
&& $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {	&& $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
return 1;	return 1;
}	}
Line 175 sub proctor_checked_in {	Line 209 sub proctor_checked_in {
return 0;	return 0;
}	}

$Apache::lonxml::browse='';
sub check_ip_acc {
my ($acc)=@_;
&Apache::lonxml::debug("acc is $acc");
if (!defined($acc) \|\| $acc =~ /^\s$/ \|\| $acc =~/^\sno\s*$/i) {
return 1;
}
my $allowed=0;
my $ip=$ENV{'REMOTE_ADDR'};
my $name;
foreach my $pattern (split(',',$acc)) {
$pattern =~ s/^\s*//;
$pattern =~ s/\s*$//;
if ($pattern =~ /\*$/) {
#35.8.*
$pattern=~s/\*//;
if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
} elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) {
#35.8.3.[34-56]
my $low=$2;
my $high=$3;
$pattern=$1;
if ($ip =~ /^\Q$pattern\E/) {
my $last=(split(/\./,$ip))[3];
if ($last <=$high && $last >=$low) { $allowed=1; }
}
} elsif ($pattern =~ /^\*/) {
#*.msu.edu
$pattern=~s/\*//;
if (!defined($name)) {
use Socket;
my $netaddr=inet_aton($ip);
($name)=gethostbyaddr($netaddr,AF_INET);
}
if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
} elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) {
#127.0.0.1
if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
} else {
#some.name.com
if (!defined($name)) {
use Socket;
my $netaddr=inet_aton($ip);
($name)=gethostbyaddr($netaddr,AF_INET);
}
if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
}
if ($allowed) { last; }
}
return $allowed;
}

sub check_slot_access {	sub check_slot_access {
my ($id,$type)=@_;	my ($id,$type)=@_;

# does it pass normal muster	# does it pass normal muster
my ($status,$datemsg)=&check_access($id);	my ($status,$datemsg)=&check_access($id);

my $useslots = &Apache::lonnet::EXT("resource.$id.useslots");	my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
if ($useslots ne 'resource' && $useslots ne 'sequence') {	if ($useslots ne 'resource' && $useslots ne 'map'
	&& $useslots ne 'map_map') {
return ($status,$datemsg);	return ($status,$datemsg);
}	}

Line 256 sub check_slot_access {	Line 239 sub check_slot_access {
}	}
}	}

my @slots=	my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
(split(':',&Apache::lonnet::EXT("resource.$id.availablestudent")),	my $available = &Apache::lonnet::EXT("resource.0.available");
split(':',&Apache::lonnet::EXT("resource.$id.available")));	my @slots= (split(':',$availablestudent),split(':',$available));

# if (!@slots) {	# if (!@slots) {
# return ($status,$datemsg);	# return ($status,$datemsg);
Line 272 sub check_slot_access {	Line 255 sub check_slot_access {
&Apache::lonhomework::showhash(%slot);	&Apache::lonhomework::showhash(%slot);
if ($slot{'starttime'} < time &&	if ($slot{'starttime'} < time &&
$slot{'endtime'} > time &&	$slot{'endtime'} > time &&
&check_ip_acc($slot{'ip'})) {	&Apache::loncommon::check_ip_acc($slot{'ip'})) {
&Apache::lonxml::debug("$slot is good");	&Apache::lonxml::debug("$slot is good");
$slotstatus='NEEDS_CHECKIN';	$slotstatus='NEEDS_CHECKIN';
$returned_slot=\%slot;	$returned_slot=\%slot;
Line 298 sub check_slot_access {	Line 281 sub check_slot_access {
$checkedin =	$checkedin =
$Apache::lonhomework::history{"resource.$version.0.checkedin"};	$Apache::lonhomework::history{"resource.$version.0.checkedin"};
} elsif ($type eq 'problem') {	} elsif ($type eq 'problem') {
$got_grade = 1;	$got_grade = 1;
$checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};	$checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
	$is_correct =
	($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
}	}

&Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");	&Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
Line 312 sub check_slot_access {	Line 297 sub check_slot_access {
return ('WAITING_FOR_GRADE');	return ('WAITING_FOR_GRADE');
}	}

	# no slot is currently open, and has been checked in for this version
	# previous slot is therefore CLOSED, so therefore the problem is
	if (!defined($slot_name)
	&& $checkedin
	&& $type eq 'problem') {
	return ('CLOSED',$datemsg);
	}

if ($slotstatus eq 'NOT_IN_A_SLOT'	if ($slotstatus eq 'NOT_IN_A_SLOT'
&& $checkedin ) {	&& $checkedin ) {

Line 322 sub check_slot_access {	Line 315 sub check_slot_access {
}	}

}	}

if ( $is_correct) {	if ( $is_correct) {
	if ($type eq 'problem') {
	return ($status);
	}
return ('SHOW_ANSWER');	return ('SHOW_ANSWER');
}	}

if ( $status eq 'CANNOT_ANSWER' &&	if ( $status eq 'CANNOT_ANSWER' &&
($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {	($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
return ($status,$datemsg);	return ($status,$datemsg);
Line 347 sub check_access {	Line 345 sub check_access {
if ($env{'request.state'} eq "construct") {	if ($env{'request.state'} eq "construct") {
if ($env{'form.problemstate'}) {	if ($env{'form.problemstate'}) {
if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {	if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&	if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
lc($Apache::lonhomework::problemstatus) eq 'no')) {	&& &hide_problem_status())) {
return ('CANNOT_ANSWER',	return ('CANNOT_ANSWER',
&mt('is in this state due to author settings.'));	&mt('is in this state due to author settings.'));
}	}
Line 366 sub check_access {	Line 364 sub check_access {
&Apache::lonxml::debug("checking for part :$id:");	&Apache::lonxml::debug("checking for part :$id:");
&Apache::lonxml::debug("time:".time);	&Apache::lonxml::debug("time:".time);

my ($symb)=&Apache::lonxml::whichuser();	my ($symb)=&Apache::lonnet::whichuser();
&Apache::lonxml::debug("symb:".$symb);	&Apache::lonxml::debug("symb:".$symb);
#if ($env{'request.state'} ne "construct" && $symb ne '') {	#if ($env{'request.state'} ne "construct" && $symb ne '') {
if ($env{'request.state'} ne "construct") {	if ($env{'request.state'} ne "construct") {
my $allowed=&check_ip_acc(&Apache::lonnet::EXT("resource.$id.acc"));	my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
	my $allowed=&Apache::loncommon::check_ip_acc($idacc);
if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {	if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
$status='INVALID_ACCESS';	$status='INVALID_ACCESS';
$date=&mt("can not be accessed from your location.");	$date=&mt("can not be accessed from your location.");
Line 379 sub check_access {	Line 378 sub check_access {

foreach my $temp ("opendate","duedate","answerdate") {	foreach my $temp ("opendate","duedate","answerdate") {
$lastdate = $date;	$lastdate = $date;
$date = &Apache::lonnet::EXT("resource.$id.$temp");	if ($temp eq 'duedate') {
	$date = &due_date($id);
	} else {
	$date = &Apache::lonnet::EXT("resource.$id.$temp");
	}

my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");	my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
if ($thistype =~ /^(con_lost\|no_such_host)/ \|\|	if ($thistype =~ /^(con_lost\|no_such_host)/ \|\|
$date =~ /^(con_lost\|no_such_host)/) {	$date =~ /^(con_lost\|no_such_host)/) {
Line 402 sub check_access {	Line 406 sub check_access {
$date = &mt("an indeterminate date"); $passed = 0;	$date = &mt("an indeterminate date"); $passed = 0;
} else {	} else {
if (time < $date) { $passed = 0; } else { $passed = 1; }	if (time < $date) { $passed = 0; } else { $passed = 1; }
$date = localtime $date;	$date = &Apache::lonlocal::locallocaltime($date);
}	}
if (!$passed) { $type=$temp; last; }	if (!$passed) { $type=$temp; last; }
}	}
Line 433 sub check_access {	Line 437 sub check_access {
# if (correct and show prob status) or excused then CANNOT_ANSWER	# if (correct and show prob status) or excused then CANNOT_ANSWER
if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/	if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
&&	&&
lc($Apache::lonhomework::problemstatus) ne 'no')	&show_problem_status())
\|\|	\|\|
$Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {	$Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
$status = 'CANNOT_ANSWER';	$status = 'CANNOT_ANSWER';
}	}
	if ($status eq 'CANNOT_ANSWER'
	&& &show_answer_problem_status()) {
	$status = 'SHOW_ANSWER';
	}
}	}
if ($status eq 'CAN_ANSWER' \|\| $status eq 'CANNOT_ANSWER') {	if ($status eq 'CAN_ANSWER' \|\| $status eq 'CANNOT_ANSWER') {
my $interval=&Apache::lonnet::EXT("resource.$id.interval");	my @interval=&Apache::lonnet::EXT("resource.$id.interval");
&Apache::lonxml::debug("looking for interval $interval");	&Apache::lonxml::debug("looking for interval @interval");
if ($interval) {	if ($interval[0]) {
my $first_access=&Apache::lonnet::get_first_access('map');	my $first_access=&Apache::lonnet::get_first_access($interval[1]);
&Apache::lonxml::debug("looking for accesstime $first_access");	&Apache::lonxml::debug("looking for accesstime $first_access");
if (!$first_access) {	if (!$first_access) {
$status='NOT_YET_VIEWED';	$status='NOT_YET_VIEWED';
$datemsg=&seconds_to_human_length($interval);	my $due_date = &due_date($id);
} else {	my $seconds_left = $due_date - time;
my $newdate=localtime($first_access+$interval);	if ($seconds_left > $interval[0] \|\| $due_date eq '') {
if (time > ($first_access+$interval)) {	$seconds_left = $interval[0];
$status='CLOSED';
$datemsg = &mt("was due on")." $newdate".&mt(", and answers will be available on")." $date";
} else {
$datemsg = &mt("is due at")." $newdate";
}	}
	$datemsg=&seconds_to_human_length($seconds_left);
}	}
}	}
}	}

#if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&	#if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
# (!$Apache::lonhomework::history{"resource.0.outtoken"})) {	# (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
# return ('UNCHECKEDOUT','needs to be checked out');	# return ('UNCHECKEDOUT','needs to be checked out');
Line 474 sub check_access {	Line 480 sub check_access {

return ($status,$datemsg);	return ($status,$datemsg);
}	}
	# this should work exactly like the copy in lonnavmaps.pm
	sub due_date {
	my ($part_id,$symb,$udom,$uname)=@_;
	my $date;
	my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
	$udom,$uname);
	&Apache::lonxml::debug("looking for interval $part_id $symb @interval");
	my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
	$udom,$uname);
	&Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
	if ($interval[0] =~ /\d+/) {
	my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
	&Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
	if (defined($first_access)) {
	my $interval = $first_access+$interval[0];
	$date = (!$due_date \|\| $interval < $due_date) ? $interval
	: $due_date;
	} else {
	$date = $due_date;
	}
	} else {
	$date = $due_date;
	}
	return $date
	}

sub seconds_to_human_length {	sub seconds_to_human_length {
my ($length)=@_;	my ($length)=@_;
Line 546 sub setuppermissions {	Line 577 sub setuppermissions {
$viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.	$viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
'/'.$env{'request.course.sec'});	'/'.$env{'request.course.sec'});
}	}
$Apache::lonhomework::viewgrades = $viewgrades; # File global variable...dirt.	$Apache::lonhomework::viewgrades = $viewgrades;

if ($Apache::lonhomework::browse eq 'F' &&	if ($Apache::lonhomework::browse eq 'F' &&
$env{'form.devalidatecourseresdata'} eq 'on') {	$env{'form.devalidatecourseresdata'} eq 'on') {
my (undef,$courseid) = &Apache::lonxml::whichuser();	my (undef,$courseid) = &Apache::lonnet::whichuser();
&Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},	&Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
$env{"course.$courseid.domain"});	$env{"course.$courseid.domain"});
}	}

my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});	my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
if (! $modifygrades &&	if (! $modifygrades &&
exists($env{'request.course.sec'}) &&	exists($env{'request.course.sec'}) &&
Line 562 sub setuppermissions {	Line 595 sub setuppermissions {
'/'.$env{'request.course.sec'});	'/'.$env{'request.course.sec'});
}	}
$Apache::lonhomework::modifygrades = $modifygrades;	$Apache::lonhomework::modifygrades = $modifygrades;

	my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
	if (! $queuegrade &&
	exists($env{'request.course.sec'}) &&
	$env{'request.course.sec'} !~ /^\s*$/) {
	$queuegrade =
	&Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
	'/'.$env{'request.course.sec'});
	}
	$Apache::lonhomework::queuegrade = $queuegrade;
return '';	return '';
}	}

	sub unset_permissions {
	undef($Apache::lonhomework::queuegrade);
	undef($Apache::lonhomework::modifygrades);
	undef($Apache::lonhomework::viewgrades);
	undef($Apache::lonhomework::browse);
	}

sub setupheader {	sub setupheader {
my $request=$_[0];	my $request=$_[0];
&Apache::loncommon::content_type($request,'text/html');	&Apache::loncommon::content_type($request,'text/html');
Line 584 sub handle_save_or_undo {	Line 634 sub handle_save_or_undo {
my $filebak =$file.".bak";	my $filebak =$file.".bak";
my $filetmp =$file.".tmp";	my $filetmp =$file.".tmp";
my $error=0;	my $error=0;

&Apache::lonnet::correct_line_ends($result);

if ($env{'form.Undo'} eq &mt('undo')) {	if ($env{'form.Undo'} eq &mt('undo')) {
my $error=0;	my $error=0;
if (!copy($file,$filetmp)) { $error=1; }	if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
if ((!$error) && (!copy($filebak,$file))) { $error=1; }	if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
if ((!$error) && (!move($filetmp,$filebak))) { $error=1; }	if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
if (!$error) {	if (!$error) {
&Apache::lonxml::info("<p><b>".&mt("Undid changes, Switched")." $filebak ".&mt("and")." $file</b></p>");	&Apache::lonxml::info("<p><b>".
	&mt("Undid changes, Switched [_1] and [_2]",
	'<span class="LC_filename">'.$filebak.
	'</span>',
	'<span class="LC_filename">'.$file.
	'</span>')."</b></p>");
} else {	} else {
&Apache::lonxml::info("<p><font color=\"red\" size=\"+1\"><b>".&mt("Unable to undo, unable to switch")." $filebak ".&mt("and")." $file</b></font></p>");	&Apache::lonxml::info("<p><span class=\"LC_error\">".
	&mt("Unable to undo, unable to switch [_1] and [_2]",
	'<span class="LC_filename">'.
	$filebak.'</span>',
	'<span class="LC_filename">'.
	$file.'</span>')."</span></p>");
$error=1;	$error=1;
}	}
} else {	} else {
	&Apache::lonnet::correct_line_ends($result);
my $fs=Apache::File->new(">$filebak");	my $fs=Apache::File->new(">$filebak");
if (defined($fs)) {	if (defined($fs)) {
print $fs $$problem;	print $fs $$problem;
&Apache::lonxml::info("<b>".&mt("Making Backup to").
" $filebak</b>");
} else {	} else {
&Apache::lonxml::info("<font color=\"red\" size=\"+1\"><b>".&mt("Unable to make backup")." $filebak</b></font>");	&Apache::lonxml::info("<span class=\"LC_error\">".
	&mt("Unable to make backup [_1]",
	'<span class="LC_filename">'.
	$filebak.'</span>')."</span>");
$error=2;	$error=2;
}	}
my $fh=Apache::File->new(">$file");	my $fh=Apache::File->new(">$file");
if (defined($fh)) {	if (defined($fh)) {
print $fh $$result;	print $fh $$result;
&Apache::lonxml::info("<b>".&mt("Saving Modifications to").
" $file</b>");
} else {	} else {
&Apache::lonxml::info("<font color=\"red\" size=\"+1\"><b>".	&Apache::lonxml::info('<span class="LC_error">'.
&mt("Unable to write to")." $file</b></font>");	&mt("Unable to write to [_1]",
	'<span class="LC_filename">'.
	$file.'</span>').
	'</span>');
$error\|=4;	$error\|=4;
}	}
}	}
Line 624 sub handle_save_or_undo {	Line 684 sub handle_save_or_undo {

sub analyze_header {	sub analyze_header {
my ($request) = @_;	my ($request) = @_;
	my $js = &Apache::structuretags::setmode_javascript();
my $result =	my $result =
&Apache::loncommon::start_page('Analyzing a problem',undef);	&Apache::loncommon::start_page('Analyzing a problem',$js);

$result .=	$result .=
&Apache::lonxml::message_location().'	&Apache::lonxml::message_location().'
<form name="lonhomework" method="POST" action="'.	<form name="lonhomework" method="POST" action="'.
&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.	&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
	'<input type="hidden" name="problemmode" value="'.
	$env{'form.problemmode'}.'" />'.
&Apache::structuretags::remember_problem_state().'	&Apache::structuretags::remember_problem_state().'
<input type="submit" name="problemmode" value="'.&mt("EditXML").'" />	<div class="LC_edit_problem_analyze_header">
<input type="submit" name="problemmode" value="'.&mt('Edit').'" />	<input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
<hr />	'onclick="javascript:setmode(this.form,'."'editxml'".')" />
<input type="submit" name="submit" value="'.&mt("View").'" />	<input type="button" name="submitmode" value="'.&mt('Edit').'" '.
<hr />	'onclick="javascript:setmode(this.form,'."'edit'".')" />
	<hr class="LC_edit_problem_divide" />
	<input type="button" name="submitmode" value="'.&mt("View").'" '.
	'onclick="javascript:setmode(this.form,'."'view'".')" />
	<hr class="LC_edit_problem_divide" />
	</div>
</form>';	</form>';
&Apache::lonxml::add_messages(\$result);	&Apache::lonxml::add_messages(\$result);
$request->print($result);	$request->print($result);
Line 682 sub analyze {	Line 750 sub analyze {
if ($analyze{$part.'.type'} eq 'numericalresponse' \|\|	if ($analyze{$part.'.type'} eq 'numericalresponse' \|\|
$analyze{$part.'.type'} eq 'stringresponse' \|\|	$analyze{$part.'.type'} eq 'stringresponse' \|\|
$analyze{$part.'.type'} eq 'formularesponse' ) {	$analyze{$part.'.type'} eq 'formularesponse' ) {
my $concatanswer=join("\0",@{ $analyze{$part.'.answer'} });	foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
if (($concatanswer eq '') \|\| ($concatanswer=~/^\@/)) {	my $i=0;
@{$analyze{$part.'.answer'}}=('<font color="red">'.&mt('Error').'</font>');	foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
}	push( @{ $overall{$part.'.answer'}[$i] },
push( @{ $overall{$part.'.answer'} },	$answer_part);
[@{ $analyze{$part.'.answer'} }]);	my $concatanswer= join("\0",@{ $answer_part });
$seedexample{join("\0",@{ $analyze{$part.'.answer'}})}=$thisseed;	if (($concatanswer eq '') \|\| ($concatanswer=~/^\@/)) {
	$answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
	}
	$seedexample{join("\0",$part,$i,@{$answer_part})}=
	$thisseed;
	$i++;
	}
	}
	if (!keys(%{ $analyze{$part.'.answer'} })) {
	my $answer_part =
	['<span class="LC_error">'.&mt('Error').'</span>'];
	$seedexample{join("\0",$part,0,@{$answer_part})}=
	$thisseed;
	push( @{ $overall{$part.'.answer'}[0] },
	$answer_part);
	}
}	}
}	}
}	}
&Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,	&Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
&mt('Analyzing Results'));	&mt('Analyzing Results'));
$request->print('<hr />'.&mt('List of possible answers').': ');	$request->print('<hr class="LC_edit_problem_divide" />'.&mt('List of possible answers').': ');
foreach my $part (sort(keys(%allparts))) {	foreach my $part (sort(keys(%allparts))) {
if (defined(@{ $overall{$part.'.answer'} })) {	if (defined(@{ $overall{$part.'.answer'} })) {
my $num_cols=scalar(@{ $overall{$part.'.answer'}->[0] });	for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
$request->print('<table class="thinborder"><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part.'</th></tr>');	my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
my %frequency;	$request->print('<table class="thinborder"><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part);
foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'} })) {	if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
$frequency{join("\0",@{ $answer })}++;	$request->print(&mt(' Answer [_1]',$i+1));
}	}
$request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'<br />('	$request->print('</th></tr>');
.&mt('click for example').')</th></tr>');	my %frequency;
foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {	foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
$request->print('<tr><td class="center">'.	$frequency{join("\0",@{ $answer })}++;
join('</td><td class="center">',split("\0",$answer)).	}
'</td><td class="center"><a href="'.$request->uri.'?rndseed='.$seedexample{$answer}.'">'.$frequency{$answer}.	$request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'<br />('
'</a></td></tr>');	.&mt('click for example').')</th></tr>');
	foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
	$request->print('<tr><td class="center">'.
	join('</td><td class="center">',split("\0",$answer)).
	'</td><td class="center"><a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.
	'</a></td></tr>');
	}
	$request->print('</table>');
}	}
$request->print('</table>');
} else {	} else {
$request->print('<p>'.&mt('Response').' '.$part.' '.	$request->print('<p>'.&mt('Response').' '.$part.' '.
&mt('is not analyzable at this time').'</p>');	&mt('is not analyzable at this time').'</p>');
Line 726 sub analyze {	Line 815 sub analyze {
return $result;	return $result;
}	}

	{
	my $show_problem_status;
	sub reset_show_problem_status {
	undef($show_problem_status);
	}

	sub set_show_problem_status {
	my ($new_status) = @_;
	$show_problem_status = lc($new_status);
	}

	sub hide_problem_status {
	return ($show_problem_status eq 'no'
	\|\| $show_problem_status eq 'no_feedback_ever');
	}

	sub show_problem_status {
	return ($show_problem_status eq 'yes'
	\|\| $show_problem_status eq 'answer'
	\|\| $show_problem_status eq '');
	}

	sub show_some_problem_status {
	return ($show_problem_status eq 'no');
	}

	sub show_no_problem_status {
	return ($show_problem_status eq 'no_feedback_ever');
	}

	sub show_answer_problem_status {
	return ($show_problem_status eq 'answer');
	}
	}

sub editxmlmode {	sub editxmlmode {
my ($request,$file) = @_;	my ($request,$file) = @_;
my $result;	my $result;
Line 741 sub editxmlmode {	Line 865 sub editxmlmode {
if (!$error) { $problem=&Apache::lonnet::getfile($file); }	if (!$error) { $problem=&Apache::lonnet::getfile($file); }
}	}
&Apache::lonhomework::showhashsubset(\%env,'^form');	&Apache::lonhomework::showhashsubset(\%env,'^form');
if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {	if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
&Apache::lonhomework::showhashsubset(\%env,'^form');	&Apache::lonhomework::showhashsubset(\%env,'^form');
$env{'form.problemmode'}='View';	$env{'form.problemmode'}='view';
&renderpage($request,$file);	&renderpage($request,$file);
} else {	} else {
my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);	my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
my $xml_help = '<table><tr><td>'.
&Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
"Problem Editing Help").
'</td><td>'.
&Apache::loncommon::help_open_menu('',undef,undef,undef,5,'Authoring').
'</td></tr></table>';
if ($cols > 80) { $cols = 80; }	if ($cols > 80) { $cols = 80; }
if ($cols < 70) { $cols = 70; }	if ($cols < 70) { $cols = 70; }
if ($rows < 20) { $rows = 20; }	if ($rows < 20) { $rows = 20; }
	my $js =
	&Apache::edit::js_change_detection().
	&Apache::loncommon::resize_textarea_js().
	&Apache::structuretags::setmode_javascript().
	&Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
	my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1;
	my $dragmath_button =
	&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
my $start_page =	my $start_page =
&Apache::loncommon::start_page("EditXML $file",	&Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
&Apache::edit::js_change_detection());	{'no_auto_mt_title' => 1,
	'only_body' => $only_body,
	'add_entries' => {
	'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
	'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
	}});
$result.=$start_page.	$result.=$start_page.
&renderpage($request,$file,['no_output_web'],1).	&renderpage($request,$file,['no_output_web'],1).
&Apache::lonxml::message_location().'	'<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'.
<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'.
&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.	&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
&Apache::structuretags::remember_problem_state().'	&Apache::structuretags::remember_problem_state().'
<input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />	<div class="LC_edit_problem_editxml_header">
<input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />	<table class="LC_edit_problem_header_title"><tr><td>
<input type="submit" '.&Apache::edit::submit_ask_anyway().'name="problemmode" accesskey="e" value="'.&mt('Edit').'" />	'.&mt('Problem Editing').&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'
<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />	</td><td align="right">
<hr />	'.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />	</td></tr>
<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />	</table>
<hr />	<div class="LC_edit_problem_discards">
' . $xml_help . '	<input type="hidden" name="problemmode" value="editxml" />
<textarea '.&Apache::edit::element_change_detection().' style="width:100%" rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
&HTML::Entities::encode($problem,'<>&"').'</textarea><br />	<input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />	'onclick="javascript:setmode(this.form,'."'discard'".')" />
<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />	<input type="button" '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'edit'".')').'name="submitmode" accesskey="e" value="'.&mt('Edit').'" />
	<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
	'.$dragmath_button.'
	</div>
	<div class="LC_edit_problem_saves">
	<input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save').'" />
	<input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
	</div>
	<hr class="LC_edit_problem_divide" />
	'.&Apache::lonxml::message_location().'
	</div>
	' . '
	<textarea '.&Apache::edit::element_change_detection().
	' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
	' name="editxmltext" id="LC_editxmltext">'.
	&HTML::Entities::encode($problem,'<>&"').'</textarea>
	<div id="LC_aftertextarea">
	</div>
</form>'.&Apache::loncommon::end_page();	</form>'.&Apache::loncommon::end_page();
&Apache::lonxml::add_messages(\$result);	&Apache::lonxml::add_messages(\$result);
$request->print($result);	$request->print($result);
Line 795 sub renderpage {	Line 941 sub renderpage {
my @targets = @{$targets \|\| [&get_target()]};	my @targets = @{$targets \|\| [&get_target()]};
&Apache::lonhomework::showhashsubset(\%env,'form.');	&Apache::lonhomework::showhashsubset(\%env,'form.');
&Apache::lonxml::debug("Running targets ".join(':',@targets));	&Apache::lonxml::debug("Running targets ".join(':',@targets));

my $overall_result;	my $overall_result;
foreach my $target (@targets) {	foreach my $target (@targets) {
# FIXME need to do something intelligent when a problem goes	# FIXME need to do something intelligent when a problem goes
Line 812 sub renderpage {	Line 959 sub renderpage {
my $problem=&Apache::lonnet::getfile($file);	my $problem=&Apache::lonnet::getfile($file);
my $result;	my $result;
if ($problem eq -1) {	if ($problem eq -1) {
my $filename=(split('/',$file))[-1];
$result.="<b> ".&mt('Unable to find')." <i>$filename</i></b>";
$problem='';	$problem='';
	my $filename=(split('/',$file))[-1];
	my $error =
	"<b> ".&mt('Unable to find [_1]',
	' <span class="LC_filename">'.$filename.'</span>')
	."</b>";
	$result.=
	&Apache::loncommon::simple_error_page($request,'Not available',
	$error);
	return;
}	}

my %mystyle;	my %mystyle;
Line 825 sub renderpage {	Line 979 sub renderpage {
&Apache::lonxml::debug("Should be parsing now");	&Apache::lonxml::debug("Should be parsing now");
$result .= &Apache::lonxml::xmlparse($request, $target, $problem,	$result .= &Apache::lonxml::xmlparse($request, $target, $problem,
&setup_vars($target),%mystyle);	&setup_vars($target),%mystyle);
undef($Apache::lonhomework::parsing_a_problem);	&finished_parsing();
if (!$output) { $result = ''; }	if (!$output) { $result = ''; }
#$request->print("Result follows:");	#$request->print("Result follows:");
if ($target eq 'modified') {	if ($target eq 'modified') {
Line 856 sub renderpage {	Line 1010 sub renderpage {
}	}
}	}

# with no arg it returns a HTML <option> list of the template titles	sub finished_parsing {
# with one arg it returns the filename associated with the arg passed	undef($Apache::lonhomework::parsing_a_problem);
	undef($Apache::lonhomework::parsing_a_task);
	}

sub get_template_list {	sub get_template_list {
my ($namewanted,$extension) = @_;	my ($extension) = @_;
my $result;	my $result;
my @allnames;	my @allnames;
&Apache::lonxml::debug("Looking for :$extension:");	&Apache::lonxml::debug("Looking for :$extension:");
foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) {	my $glob_extension = $extension;
my $name=&Apache::lonnet::metadata($file,'title');	if ($extension eq 'survey' \|\| $extension eq 'exam') {
if ($namewanted && ($name eq $namewanted)) {	$glob_extension = 'problem';
$result=$file;	}
last;	my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
} else {	'/templates/*.'.$glob_extension);
if ($name) { push (@allnames, $name); }	@files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
}	(&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
	&mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
	@files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
	my ($midpoint,$seconddiv,$numfiles);
	$numfiles = 0;
	foreach my $file (@files) {
	next if ($file->[1] !~ /\S/);
	$numfiles ++;
	}
	if ($numfiles > 0) {
	$result = '<div class="LC_left_float">';
	$midpoint = int($numfiles/2);
	if ($numfiles%2) {
	$midpoint ++;
	}
	}
	my $count = 0;
	my $currentcategory='';
	foreach my $file (@files) {
	next if ($file->[1] !~ /\S/);
	if ($file->[2] ne $currentcategory) {
	$currentcategory=$file->[2];
	if ((!$seconddiv) && ($count >= $midpoint)) {
	$result .= '</div>'."\n".'<div class="LC_left_float">'."\n";
	$seconddiv = 1;
	}
	$result.='<h3>'.$currentcategory.'</h3>';
	$count++;
	}
	$result .=
	'<label><input type="radio" name="template" value="'.$file->[0].'" />'.
	$file->[1].'</label>';
	if ($file->[3]) {
	$result.=&Apache::loncommon::help_open_topic($file->[3]);
	}
	my $filename=$file->[0];
	$filename=~s/^\/home\/httpd\/html//;
	$result.=' <font size="-2"><a href="'.$filename.'" target="sample">'.&mt('Example').'</font></a><br />'."\n";
	$count ++;
}	}
if (@allnames && !$result) {	if ($numfiles > 0) {
$result="<option>".&mt("Select a")." $extension ".&mt('template')."</option>\n<option>".	$result .= '</div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
join('</option><option>',sort(@allnames)).'</option>';
}	}
return $result;	return $result;
}	}

sub newproblem {	sub newproblem {
my ($request) = @_;	my ($request) = @_;
my $extension=$request->uri;
$extension=~s:^.*\.([\w]+)$:$1:;	if ($env{'form.template'}) {
&Apache::lonxml::debug("Looking for :$extension:");	my $file = $env{'form.template'};
my $templatelist=&get_template_list('',$extension);
if ($env{'form.template'} &&
$env{'form.template'} ne "Select a $extension template") {
use File::Copy;
my $file = &get_template_list($env{'form.template'},$extension);
my $dest = &Apache::lonnet::filelocation("",$request->uri);	my $dest = &Apache::lonnet::filelocation("",$request->uri);
copy($file,$dest);	&File::Copy::copy($file,$dest);
&renderpage($request,$dest);	&renderpage($request,$dest);
} elsif($env{'form.newfile'} && !$templatelist) {	return;
# I don't like hard-coded filenames but for now, this will work.	}
use File::Copy;
	my ($extension) = ($request->uri =~ m/\.(\w+)$/);
	&Apache::lonxml::debug("Looking for :$extension:");
	my $templatelist=&get_template_list($extension);
	if ($env{'form.newfile'} && !$templatelist) {
	# no templates found
my $templatefilename =	my $templatefilename =
$request->dir_config('lonIncludes').'/templates/blank.problem';	$request->dir_config('lonIncludes').'/templates/blank.'.$extension;
&Apache::lonxml::debug("$templatefilename");	&Apache::lonxml::debug("$templatefilename");
my $dest = &Apache::lonnet::filelocation("",$request->uri);	my $dest = &Apache::lonnet::filelocation("",$request->uri);
copy($templatefilename,$dest);	&File::Copy::copy($templatefilename,$dest);
&renderpage($request,$dest);	&renderpage($request,$dest);
} else {	} else {
my $url=&HTML::Entities::encode($request->uri,'<>&"');	my $url=&HTML::Entities::encode($request->uri,'<>&"');
Line 907 sub newproblem {	Line 1101 sub newproblem {
$shownurl=~s-^/~-/priv/-;	$shownurl=~s-^/~-/priv/-;
my $dest = &Apache::lonnet::filelocation("",$request->uri);	my $dest = &Apache::lonnet::filelocation("",$request->uri);
my $errormsg;	my $errormsg;
if ($env{'form.newfile'}) {
$errormsg='<p><font color="red">'.&mt('You did not select a template.').'</font></p>'."\n";
}
my $instructions;	my $instructions;
my $start_page =	my $start_page =
&Apache::loncommon::start_page("Create New $extension");	&Apache::loncommon::start_page("Create New $extension");
if ($templatelist) { $instructions=&mt(", select a template from the pull-down menu below.").'<br />'.&mt("Then");}	$request->print("
my %lt=&Apache::lonlocal::texthash( 'create' => 'Creating a new',
'resource' => 'resource',
'requested' => 'The requested file',
'not exist' => 'currently does not exist',
'createnew' => 'To create a new',
'click' => 'click on the',
'Create' => 'Create',
'button' => 'button');
$request->print(<<ENDNEWPROBLEM);
$start_page	$start_page
<h1>$lt{'create'} $extension $lt{'resource'}</h1>	<h1>".&mt("Creating a new $extension resource.")."</h1>
$errormsg	$errormsg
$lt{'requested'} <tt>$shownurl</tt> $lt{'not exist'}.	".&mt("The requested file [_1] currently does not exist.",
	"<tt>$shownurl</tt>")."
<p>	<p>
<b>$lt{'createnew'} $extension$instructions $lt{'click'} "$lt{'Create'} $extension" $lt{'button'}.</b>	<b>
</p>	".&mt("To create a new $extension, select a template from the".
<p><form action="$url" method="POST">	" list below. Then click on the \"Create $extension\" button.")."</b>
ENDNEWPROBLEM	</p><form action=\"$url\" method=\"POST\">");

if (defined($templatelist)) {	if (defined($templatelist)) {
$request->print("<select name=\"template\">$templatelist</select>");	$request->print($templatelist);
}	}
$request->print("<br /><input type=\"submit\" name=\"newfile\" value=\"".&mt('Create')." $extension\" />");	$request->print('<br /><input type="submit" name="newfile" value="'.
	&mt("Create $extension").'" />');
$request->print("</form></p>".&Apache::loncommon::end_page());	$request->print("</form></p>".&Apache::loncommon::end_page());
}	}
return '';	return;
}	}

	sub update_construct_style {
	if ($env{'request.state'} eq "construct"
	&& $env{'form.problemmode'} eq 'view'
	&& defined($env{'form.submitted'})
	&& !defined($env{'form.resetdata'})
	&& !defined($env{'form.newrandomization'})) {
	if ((!$env{'form.style_file'} && $env{'construct.style'})
	\|\|$env{'form.clear_style_file'}) {
	&Apache::lonnet::delenv('construct.style');
	} elsif ($env{'form.style_file'}
	&& $env{'construct.style'} ne $env{'form.style_file'}) {
	&Apache::lonnet::appenv({'construct.style' =>
	$env{'form.style_file'}});
	}
	}
	}


sub handler {	sub handler {
#my $t0 = [&gettimeofday()];	#my $t0 = [&gettimeofday()];
my $request=$_[0];	my $request=$_[0];
Line 948 sub handler {	Line 1151 sub handler {
$Apache::lonxml::debug=$env{'user.debug'};	$Apache::lonxml::debug=$env{'user.debug'};
$env{'request.uri'}=$request->uri;	$env{'request.uri'}=$request->uri;
&setuppermissions();	&setuppermissions();
# some times multiple problemmodes are submitted, need to select
# the last one
if ( defined($env{'form.problemmode'}) && ref($env{'form.problemmode'}) ) {
my $mode=$env{'form.problemmode'}->[-1];
undef $env{'form.problemmode'};
$env{'form.problemmode'}=$mode;
}

my $file=&Apache::lonnet::filelocation("",$request->uri);	my $file=&Apache::lonnet::filelocation("",$request->uri);

Line 964 sub handler {	Line 1160 sub handler {
if ($Apache::lonhomework::browse ne 'F' &&	if ($Apache::lonhomework::browse ne 'F' &&
$env{'request.state'} ne "construct") {	$env{'request.state'} ne "construct") {
#should know where we are, so ask	#should know where we are, so ask
$request->internal_redirect('/adm/ambiguous'); return OK;	&unset_permissions();
	$request->internal_redirect('/adm/ambiguous');
	return OK;
}	}
}	}
if (&setupheader($request)) { return OK; }	if (&setupheader($request)) {
&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");	&unset_permissions();
	return OK;
	}
	&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
&Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});	&Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
my ($symb) = &Apache::lonxml::whichuser();	my ($symb) = &Apache::lonnet::whichuser();
&Apache::lonxml::debug('symb is '.$symb);	&Apache::lonxml::debug('symb is '.$symb);
if ($env{'request.state'} eq "construct") {	if ($env{'request.state'} eq "construct") {
if ( -e $file ) {	if ( -e $file ) {
Line 978 sub handler {	Line 1179 sub handler {
['problemmode']);	['problemmode']);
if (!(defined $env{'form.problemmode'})) {	if (!(defined $env{'form.problemmode'})) {
#first visit to problem in construction space	#first visit to problem in construction space
$env{'form.problemmode'}='View';	$env{'form.problemmode'}= 'view';
&renderpage($request,$file);	&renderpage($request,$file);
} elsif ($env{'form.problemmode'} eq &mt('EditXML') \|\|	} elsif ($env{'form.problemmode'} eq 'editxml') {
$env{'form.problemmode'} eq 'EditXML') {
&editxmlmode($request,$file);	&editxmlmode($request,$file);
} elsif ($env{'form.problemmode'} eq &mt('Calculate answers')) {	} elsif ($env{'form.problemmode'} eq 'calcanswers') {
&analyze($request,$file);	&analyze($request,$file);
} else {	} else {
	&update_construct_style();
&renderpage($request,$file);	&renderpage($request,$file);
}	}
} else {	} else {
Line 1001 sub handler {	Line 1202 sub handler {
#&Apache::lonxml::debug("Spent $td seconds processing");	#&Apache::lonxml::debug("Spent $td seconds processing");
# always turn off debug messages	# always turn off debug messages
$Apache::lonxml::debug=0;	$Apache::lonxml::debug=0;
	&unset_permissions();
return OK;	return OK;

}	}

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

Removed from v.1.243
changed lines
	Added in v.1.304