");
+ }
+ if (($env{'request.state'} eq "published") ||
+ ($env{'request.state'} eq "uploaded")) {
+ if ( defined($env{'form.grade_target'} )
+ && ($env{'form.grade_target'} eq 'tex')) {
+ return ($env{'form.grade_target'});
+ } elsif ( defined($env{'form.grade_target'} )
+ && ($Apache::lonhomework::viewgrades eq 'F' )) {
+ return ($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'} &&
+ ($Apache::lonhomework::modifygrades eq 'F'
+ || $Apache::lonhomework::queuegrade eq 'F' )) {
+ return ('grade','webgrade');
+ }
+ if ( defined($env{'form.submitted'}) &&
+ ( !defined($env{'form.newrandomization'}))) {
+ return ('grade', 'web');
+ } else {
+ return ('web');
+ }
+ } elsif ($env{'request.state'} eq "construct") {
+ if ( defined($env{'form.grade_target'}) ) {
+ return ($env{'form.grade_target'});
+ }
+ if ( defined($env{'form.preview'})) {
+ if ( defined($env{'form.submitted'})) {
+ return ('grade', 'web');
+ } else {
+ return ('web');
+ }
+ } else {
+ if ($env{'form.problemstate'} eq 'WEB_GRADE') {
+ #$env{'form.webgrade'} = 'yes';
+ return ('grade','webgrade','answer');
+ } elsif ( $env{'form.problemmode'} eq &mt('View') ||
+ $env{'form.problemmode'} eq &mt('Discard Edits and View')) {
+ if ( defined($env{'form.submitted'}) &&
+ (!defined($env{'form.resetdata'})) &&
+ (!defined($env{'form.newrandomization'}))) {
+ return ('grade', 'web','answer');
+ } else {
+ return ('web','answer');
+ }
+ } elsif ( $env{'form.problemmode'} eq &mt('Edit') ||
+ $env{'form.problemmode'} eq 'Edit') {
+ if ( $env{'form.submitted'} eq 'edit' ) {
+ if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {
+ return ('modified','web','answer');
+ } else {
+ return ('modified','no_output_web','edit');
+ }
+ } else {
+ return ('no_output_web','edit');
+ }
+ } else {
+ return ('web');
+ }
+ }
}
- }
- return ();
+ return ();
}
sub setup_vars {
- my ($target) = @_;
- return ';'
+ my ($target) = @_;
+ return ';'
# return ';$external::target='.$target.';';
}
-sub send_header {
- my ($request)= @_;
- $request->print(&Apache::lontexconvert::header());
- $ENV{'request.uri'}=$request->uri;
-# $request->print('');
- $request->print(&Apache::lontexconvert::footer());
-}
-
-#@Apache::lonhomework::date_status=();
-#@Apache::lonhomework::date_msg=();
-sub check_date {
- my ($id) = @_;
- my $date ='';
- my $status = '';
- my $datemsg = '';
- my $lastdate = '';
- my $temp;
- my $type;
- my $passed;
- &Apache::lonxml::debug("checking for part :$id:");
- foreach $temp ("opendate","duedate","answerdate") {
- $lastdate = $date;
- $date = &Apache::lonnet::EXT("resource.$id.$temp");
- &Apache::lonxml::debug("found :$date: for :$temp:");
- if ($date eq '') {
- $date = "an unknown date"; $passed = 0;
- } else {
- if (time < $date) { $passed = 0; } else { $passed = 1; }
- $date = localtime $date;
- }
- if (!$passed) { $type=$temp; last; }
- }
- &Apache::lonxml::debug("have :$type:$passed:");
- if ($passed) {
- $status='SHOW_ANSWER';
- $datemsg=$date;
- } elsif ($type eq 'opendate') {
- $status='CLOSED';
- $datemsg = "will open on $date";
- } elsif ($type eq 'duedate') {
- $status='CAN_ANSWER';
- $datemsg = "is due at $date";
- } elsif ($type eq 'answerdate') {
- $status='CLOSED';
- $datemsg = "was due as $lastdate, and answers will be available at $date";
- }
- &Apache::lonxml::debug("sending back :$status:$datemsg:");
- if ($ENV{'request.state'} eq "construct") {
- &Apache::lonxml::debug("in construction ignoring dates");
- $status='CAN_ANSWER';
- $datemsg='is in under construction';
- }
- return ($status,$datemsg);
+sub createmenu {
+ my ($which,$request)=@_;
+ if ($which eq 'grade') {
+ $request->print('');
+ }
}
-sub handler {
- my $request=$_[0];
+sub proctor_checked_in {
+ my ($slot_name,$slot,$type)=@_;
+ my @possible_proctors=split(",",$slot->{'proctor'});
+
+ return 1 if (!@possible_proctors);
- if ( $ENV{'user.name'} eq 'albertel' ) { $Apache::lonxml::debug=1; }
-
- my (@targets) = &get_target();
-
- if ($ENV{'browser.mathml'}) {
- $request->content_type('text/xml');
- } else {
- $request->content_type('text/html');
- }
- $request->send_http_header;
- return OK if $request->header_only;
-
- &Apache::lonhomework::send_header($request);
-
- #check if allowed to see
-
- foreach my $target (@targets) {
- my $file=&Apache::lonnet::filelocation("",$request->uri);
- my $problem=&Apache::lonnet::getfile($file);
- if ($problem == -1) {
- &Apache::lonxml::error(" Unable to find $file");
- $problem='';
- }
-
- my %mystyle;
- my $result = '';
- &Apache::inputtags::initialize_inputtags;
- %Apache::lonhomework::results=();
- %Apache::lonhomework::history=&Apache::lonnet::restore;
- #ignore error conditions
- my ($temp)=keys %Apache::lonhomework::history ;
- if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
- if ($target eq 'web' && &Apache::lonnet::symbread() eq '') {
- $request->print("Vieiwing this problem as not a student, submissions will be ignored.");
- }
- if ($target eq 'grade') {
- my $resultkey;
- foreach $resultkey (sort keys %Apache::lonhomework::history) {
- &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::history{$resultkey}");
- }
- &Apache::lonxml::debug("\n
restored values^\n");
- }
- my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
- if ($default == -1) {
- &Apache::lonxml::error("Unable to find default_homework.lcpm");
- $default='';
- }
- if ( $target eq 'grade') {
- $Apache::lonxml::textredirection = 0;
+ my $key;
+ if ($type eq 'Task') {
+ my $version=$Apache::lonhomework::history{'resource.0.version'};
+ $key ="resource.$version.0.checkedin";
+ } elsif ($type eq 'problem') {
+ $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 $possible (@possible_proctors) {
+ if ($who eq $possible
+ && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+sub check_ip_acc {
+ my ($acc)=@_;
+ &Apache::lonxml::debug("acc is $acc");
+ if (!defined($acc) || $acc =~ /^\s*$/ || $acc =~/^\s*no\s*$/i) {
+ return 1;
+ }
+ my $allowed=0;
+ my $ip=$env{'request.host'} || $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 $allowed;
+}
+
+sub check_slot_access {
+ my ($id,$type)=@_;
+
+ # does it pass normal muster
+ my ($status,$datemsg)=&check_access($id);
+
+ my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
+ if ($useslots ne 'resource' && $useslots ne 'map'
+ && $useslots ne 'map_map') {
+ return ($status,$datemsg);
+ }
+
+ if ($status eq 'SHOW_ANSWER' ||
+ $status eq 'CLOSED' ||
+ $status eq 'INVALID_ACCESS' ||
+ $status eq 'UNAVAILABLE') {
+ return ($status,$datemsg);
+ }
+ if ($env{'request.state'} eq "construct") {
+ return ($status,$datemsg);
+ }
+
+ if ($type eq 'Task') {
+ my $version=$Apache::lonhomework::history{'resource.version'};
+ if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
+ $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
+ return ('SHOW_ANSWER');
+ }
+ }
+
+ my @slots=
+ (split(':',&Apache::lonnet::EXT("resource.0.availablestudent")),
+ split(':',&Apache::lonnet::EXT("resource.0.available")));
+
+# if (!@slots) {
+# return ($status,$datemsg);
+# }
+ my $slotstatus='NOT_IN_A_SLOT';
+ my ($returned_slot,$slot_name);
+ foreach my $slot (@slots) {
+ $slot =~ s/(^\s*|\s*$)//g;
+ &Apache::lonxml::debug("getting $slot");
+ my %slot=&Apache::lonnet::get_slot($slot);
+ &Apache::lonhomework::showhash(%slot);
+ if ($slot{'starttime'} < time &&
+ $slot{'endtime'} > time &&
+ &check_ip_acc($slot{'ip'})) {
+ &Apache::lonxml::debug("$slot is good");
+ $slotstatus='NEEDS_CHECKIN';
+ $returned_slot=\%slot;
+ $slot_name=$slot;
+ last;
+ }
+ }
+ if ($slotstatus eq 'NEEDS_CHECKIN' &&
+ &proctor_checked_in($slot_name,$returned_slot,$type)) {
+ &Apache::lonxml::debug("protoctor checked in");
+ $slotstatus='CAN_ANSWER';
+ }
+
+ my ($is_correct,$got_grade,$checkedin);
+ if ($type eq 'Task') {
+ my $version=$Apache::lonhomework::history{'resource.0.version'};
+ $got_grade =
+ ($Apache::lonhomework::history{"resource.$version.0.status"}
+ =~ /^(?:pass|fail)$/);
+ $is_correct =
+ ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
+ || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
+ $checkedin =
+ $Apache::lonhomework::history{"resource.$version.0.checkedin"};
+ } elsif ($type eq 'problem') {
+ $got_grade = 1;
+ $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)");
+
+ # no slot is currently open, and has been checked in for this version
+ # but hasn't got a grade, therefore must be awaiting a grade
+ if (!defined($slot_name)
+ && $checkedin
+ && !$got_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'
+ && $checkedin ) {
+
+ if ($got_grade) {
+ return ('SHOW_ANSWER');
+ } else {
+ return ('WAITING_FOR_GRADE');
+ }
+
+ }
+
+ if ( $is_correct) {
+ if ($type eq 'problem') {
+ return ($status);
+ }
+ return ('SHOW_ANSWER');
+ }
+
+ if ( $status eq 'CANNOT_ANSWER' &&
+ ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
+ return ($status,$datemsg);
+ }
+
+ return ($slotstatus,$datemsg,$slot_name,$returned_slot);
+}
+
+# JB, 9/24/2002: Any changes in this function may require a change
+# in lonnavmaps::resource::getDateStatus.
+sub check_access {
+ my ($id) = @_;
+ my $date ='';
+ my $status;
+ my $datemsg = '';
+ my $lastdate = '';
+ my $type;
+ my $passed;
+
+ if ($env{'request.state'} eq "construct") {
+ if ($env{'form.problemstate'}) {
+ if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
+ if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&
+ lc($Apache::lonhomework::problemstatus) eq 'no')) {
+ return ('CANNOT_ANSWER',
+ &mt('is in this state due to author settings.'));
+ }
+ } else {
+ return ($env{'form.problemstate'},
+ &mt('is in this state due to author settings.'));
+ }
+ }
+ &Apache::lonxml::debug("in construction ignoring dates");
+ $status='CAN_ANSWER';
+ $datemsg=&mt('is in under construction');
+# return ($status,$datemsg);
+ }
+
+ &Apache::lonxml::debug("checking for part :$id:");
+ &Apache::lonxml::debug("time:".time);
+
+ my ($symb)=&Apache::lonnet::whichuser();
+ &Apache::lonxml::debug("symb:".$symb);
+ #if ($env{'request.state'} ne "construct" && $symb ne '') {
+ if ($env{'request.state'} ne "construct") {
+ my $allowed=&check_ip_acc(&Apache::lonnet::EXT("resource.$id.acc"));
+ if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
+ $status='INVALID_ACCESS';
+ $date=&mt("can not be accessed from your location.");
+ return($status,$date);
+ }
+
+ foreach my $temp ("opendate","duedate","answerdate") {
+ $lastdate = $date;
+ if ($temp eq 'duedate') {
+ $date = &due_date($id);
+ } else {
+ $date = &Apache::lonnet::EXT("resource.$id.$temp");
+ }
+
+ my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
+ if ($thistype =~ /^(con_lost|no_such_host)/ ||
+ $date =~ /^(con_lost|no_such_host)/) {
+ $status='UNAVAILABLE';
+ $date=&mt("may open later.");
+ return($status,$date);
+ }
+ if ($thistype eq 'date_interval') {
+ if ($temp eq 'opendate') {
+ $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
+ }
+ if ($temp eq 'answerdate') {
+ $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
+ }
+ }
+ &Apache::lonxml::debug("found :$date: for :$temp:");
+ if ($date eq '') {
+ $date = &mt("an unknown date"); $passed = 0;
+ } elsif ($date eq 'con_lost') {
+ $date = &mt("an indeterminate date"); $passed = 0;
+ } else {
+ if (time < $date) { $passed = 0; } else { $passed = 1; }
+ $date = localtime $date;
+ }
+ if (!$passed) { $type=$temp; last; }
+ }
+ &Apache::lonxml::debug("have :$type:$passed:");
+ if ($passed) {
+ $status='SHOW_ANSWER';
+ $datemsg=$date;
+ } elsif ($type eq 'opendate') {
+ $status='CLOSED';
+ $datemsg = &mt("will open on")." $date";
+ } elsif ($type eq 'duedate') {
+ $status='CAN_ANSWER';
+ $datemsg = &mt("is due at")." $date";
+ } elsif ($type eq 'answerdate') {
+ $status='CLOSED';
+ $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
+ }
+ }
+ if ($status eq 'CAN_ANSWER' ||
+ (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
+ #check #tries, and if correct.
+ my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
+ my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
+ if ( $tries eq '' ) { $tries = '0'; }
+ if ( $maxtries eq '' &&
+ $env{'request.state'} ne 'construct') { $maxtries = '2'; }
+ if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
+ # if (correct and show prob status) or excused then CANNOT_ANSWER
+ if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
+ &&
+ lc($Apache::lonhomework::problemstatus) ne 'no')
+ ||
+ $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
+ $status = 'CANNOT_ANSWER';
+ }
+ }
+ if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
+ my $interval=&Apache::lonnet::EXT("resource.$id.interval");
+ &Apache::lonxml::debug("looking for interval $interval");
+ if ($interval) {
+ my $first_access=&Apache::lonnet::get_first_access('map');
+ &Apache::lonxml::debug("looking for accesstime $first_access");
+ if (!$first_access) {
+ $status='NOT_YET_VIEWED';
+ my $due_date = &due_date($id);
+ my $seconds_left = $due_date - time;
+ if ($seconds_left > $interval || $due_date eq '') {
+ $seconds_left = $interval;
+ }
+ $datemsg=&seconds_to_human_length($seconds_left);
+ }
+ }
+ }
+
+ #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
+ # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
+ # return ('UNCHECKEDOUT','needs to be checked out');
+ #}
+
+
+ &Apache::lonxml::debug("sending back :$status:$datemsg:");
+ if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
+ &Apache::lonxml::debug("should be allowed to browse a resource when closed");
+ $status='CAN_ANSWER';
+ $datemsg=&mt('is closed but you are allowed to view it');
+ }
+
+ return ($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 =~ /\d+/) {
+ my $first_access=&Apache::lonnet::get_first_access('map',$symb);
+ &Apache::lonxml::debug("looking for first_access $first_access");
+ if (defined($first_access)) {
+ $interval = $first_access+$interval;
+ $date = ($interval < $due_date)? $interval : $due_date;
+ } else {
+ $date = $due_date;
+ }
} else {
- $Apache::lonxml::textredirection = 1;
+ $date = $due_date;
}
- $result = &Apache::lonxml::xmlparse($target, $problem,
- $default.&setup_vars($target),%mystyle);
+ return $date
+}
+
+sub seconds_to_human_length {
+ my ($length)=@_;
+
+ my $seconds=$length%60; $length=int($length/60);
+ my $minutes=$length%60; $length=int($length/60);
+ my $hours=$length%24; $length=int($length/24);
+ my $days=$length;
+
+ my $timestr;
+ if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
+ if ($hours > 0) { $timestr.=($timestr?", ":"").
+ &mt('[quant,_1,hour]',$hours); }
+ if ($minutes > 0) { $timestr.=($timestr?", ":"").
+ &mt('[quant,_1,minute]',$minutes); }
+ if ($seconds > 0) { $timestr.=($timestr?", ":"").
+ &mt('[quant,_1,second]',$seconds); }
+ return $timestr;
+}
- #$request->print("Result follows:");
+sub showhash {
+ my (%hash) = @_;
+ &showhashsubset(\%hash,'.');
+ return '';
+}
+
+sub showarray {
+ my ($array)=@_;
+ my $string="(";
+ foreach my $elm (@{ $array }) {
+ if (ref($elm) eq 'ARRAY') {
+ $string.=&showarray($elm);
+ } elsif (ref($elm) eq 'HASH') {
+ $string.= "HASH --- \n
";
+ $string.= &showhashsubset($elm,'.');
+ } else {
+ $string.="$elm,"
+ }
+ }
+ chop($string);
+ $string.=")";
+ return $string;
+}
+
+sub showhashsubset {
+ my ($hash,$keyre) = @_;
+ my $resultkey;
+ foreach $resultkey (sort keys %$hash) {
+ if ($resultkey !~ /$keyre/) { next; }
+ if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
+ &Apache::lonxml::debug("$resultkey ---- ".
+ &showarray($$hash{$resultkey}));
+ } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
+ &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
+ &showhashsubset($$hash{$resultkey},'.');
+ } else {
+ &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
+ }
+ }
+ &Apache::lonxml::debug("\n
restored values^\n");
+ return '';
+}
+
+sub setuppermissions {
+ $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
+ my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
+ if (! $viewgrades &&
+ exists($env{'request.course.sec'}) &&
+ $env{'request.course.sec'} !~ /^\s*$/) {
+ $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
+ '/'.$env{'request.course.sec'});
+ }
+ $Apache::lonhomework::viewgrades = $viewgrades;
+
+ if ($Apache::lonhomework::browse eq 'F' &&
+ $env{'form.devalidatecourseresdata'} eq 'on') {
+ my (undef,$courseid) = &Apache::lonnet::whichuser();
+ &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
+ $env{"course.$courseid.domain"});
+ }
+
+ my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
+ if (! $modifygrades &&
+ exists($env{'request.course.sec'}) &&
+ $env{'request.course.sec'} !~ /^\s*$/) {
+ $modifygrades =
+ &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
+ '/'.$env{'request.course.sec'});
+ }
+ $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 = $queuegrade;
+ return '';
+}
+
+sub unset_permissions {
+ undef($Apache::lonhomework::queuegrade);
+ undef($Apache::lonhomework::modifygrades);
+ undef($Apache::lonhomework::viewgrades);
+ undef($Apache::lonhomework::browse);
+}
+
+sub setupheader {
+ my $request=$_[0];
+ &Apache::loncommon::content_type($request,'text/html');
+ if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
+ &Apache::loncommon::no_cache($request);
+ }
+# $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
+# 'lastrevisiondate'));
+ $request->send_http_header;
+ return OK if $request->header_only;
+ return ''
+}
+
+sub handle_save_or_undo {
+ my ($request,$problem,$result) = @_;
+ my $file = &Apache::lonnet::filelocation("",$request->uri);
+ my $filebak =$file.".bak";
+ my $filetmp =$file.".tmp";
+ my $error=0;
+ if ($env{'form.Undo'} eq &mt('undo')) {
+ my $error=0;
+ if (!copy($file,$filetmp)) { $error=1; }
+ if ((!$error) && (!copy($filebak,$file))) { $error=1; }
+ if ((!$error) && (!move($filetmp,$filebak))) { $error=1; }
+ if (!$error) {
+ &Apache::lonxml::info("".
+ &mt("Undid changes, Switched [_1] and [_2]",
+ ''.$filebak.
+ '',
+ ''.$file.
+ '')."
");
+ } else {
+ &Apache::lonxml::info("".
+ &mt("Unable to undo, unable to switch [_1] and [_2]",
+ ''.
+ $filebak.'',
+ ''.
+ $file.'')."
");
+ $error=1;
+ }
+ } else {
+ &Apache::lonnet::correct_line_ends($result);
+ my $fs=Apache::File->new(">$filebak");
+ if (defined($fs)) {
+ print $fs $$problem;
+ &Apache::lonxml::info("".&mt("Making Backup to [_1]",
+ ''.
+ $filebak.'').
+ "");
+ } else {
+ &Apache::lonxml::info("".
+ &mt("Unable to make backup [_1]",
+ ''.
+ $filebak.'')."");
+ $error=2;
+ }
+ my $fh=Apache::File->new(">$file");
+ if (defined($fh)) {
+ print $fh $$result;
+ &Apache::lonxml::info("".&mt("Saving Modifications to [_1]",
+ ''.
+ $file.'' )."");
+ } else {
+ &Apache::lonxml::info(''.
+ &mt("Unable to write to [_1]",
+ ''.
+ $file.'').
+ '');
+ $error|=4;
+ }
+ }
+ return $error;
+}
+
+sub analyze_header {
+ my ($request) = @_;
+ my $result =
+ &Apache::loncommon::start_page('Analyzing a problem',undef);
+
+ $result .=
+ &Apache::lonxml::message_location().'
+ ';
+ &Apache::lonxml::add_messages(\$result);
$request->print($result);
- #$request->print(":Result ends");
- if ($target eq 'grade') {
- my $resultkey;
- foreach $resultkey (sort keys %Apache::lonhomework::results) {
- &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::results{$resultkey}");
- }
- &Apache::lonxml::debug("\n
storing values^\n");
- }
-
- my ($temp) = keys %Apache::lonhomework::results;
- if ( $temp ne '' ) {
- &Apache::lonxml::debug("Store return message:".&Apache::lonnet::cstore(%Apache::lonhomework::results));
- }
- }
- &Apache::lonhomework::send_footer($request);
-
- return OK;
+ $request->rflush();
+}
+
+sub analyze_footer {
+ my ($request) = @_;
+ $request->print(&Apache::loncommon::end_page());
+ $request->rflush();
+}
+
+sub analyze {
+ my ($request,$file) = @_;
+ &Apache::lonxml::debug("Analyze");
+ my $result;
+ my %overall;
+ my %seedexample;
+ my %allparts;
+ my $rndseed=$env{'form.rndseed'};
+ &analyze_header($request);
+ my %prog_state=
+ &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
+ &mt('Getting Problem Variants'),
+ $env{'form.numtoanalyze'},
+ 'inline',undef);
+ for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
+ &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
+ &mt('last problem'));
+ if (&Apache::loncommon::connection_aborted($request)) { return; }
+ my $thisseed=$i+$rndseed;
+ my $subresult=&Apache::lonnet::ssi($request->uri,
+ ('grade_target' => 'analyze'),
+ ('rndseed' => $thisseed));
+ (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
+ my %analyze=&Apache::lonnet::str2hash($subresult);
+ my @parts;
+ if (defined(@{ $analyze{'parts'} })) {
+ @parts=@{ $analyze{'parts'} };
+ }
+ foreach my $part (@parts) {
+ if (!exists($allparts{$part})) {$allparts{$part}=1;};
+ if ($analyze{$part.'.type'} eq 'numericalresponse' ||
+ $analyze{$part.'.type'} eq 'stringresponse' ||
+ $analyze{$part.'.type'} eq 'formularesponse' ) {
+ foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
+ my $i=0;
+ foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
+ push( @{ $overall{$part.'.answer'}[$i] },
+ $answer_part);
+ my $concatanswer= join("\0",@{ $answer_part });
+ if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
+ $answer_part = [''.&mt('Error').''];
+ }
+ $seedexample{join("\0",$part,$i,@{$answer_part})}=
+ $thisseed;
+ $i++;
+ }
+ }
+ }
+ }
+ }
+ &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
+ &mt('Analyzing Results'));
+ $request->print('
'.&mt('List of possible answers').': ');
+ foreach my $part (sort(keys(%allparts))) {
+ if (defined(@{ $overall{$part.'.answer'} })) {
+ for (my $i=0;$iprint('| '.&mt('Part').' '.$part);
+ if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
+ $request->print(&mt(' Answer [_1]',$i+1));
+ }
+ $request->print(' |
|---|
');
+ my %frequency;
+ foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
+ $frequency{join("\0",@{ $answer })}++;
+ }
+ $request->print('| '.&mt('Answer').' | '.&mt('Frequency').'
('
+ .&mt('click for example').') |
|---|
');
+ foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
+ $request->print('| '.
+ join(' | ',split("\0",$answer)).
+ ' | '.$frequency{$answer}.
+ ' |
');
+ }
+ $request->print('
');
+ }
+ } else {
+ $request->print(''.&mt('Response').' '.$part.' '.
+ &mt('is not analyzable at this time').'
');
+ }
+ }
+ if (scalar(keys(%allparts)) == 0 ) {
+ $request->print(''.&mt('Found no analyzable responses in this problem, currently only Numerical, Formula and String response styles are supported.').'
');
+ }
+ &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
+ &analyze_footer($request);
+ &Apache::lonhomework::showhash(%overall);
+ return $result;
+}
+
+sub editxmlmode {
+ my ($request,$file) = @_;
+ my $result;
+ my $problem=&Apache::lonnet::getfile($file);
+ if ($problem eq -1) {
+ &Apache::lonxml::error(" ".&mt('Unable to find').
+ " $file");
+ $problem='';
+ }
+ if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
+ my $error=&handle_save_or_undo($request,\$problem,
+ \$env{'form.editxmltext'});
+ if (!$error) { $problem=&Apache::lonnet::getfile($file); }
+ }
+ &Apache::lonhomework::showhashsubset(\%env,'^form');
+ if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {
+ &Apache::lonhomework::showhashsubset(\%env,'^form');
+ $env{'form.problemmode'}='View';
+ &renderpage($request,$file);
+ } else {
+ my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
+ my $xml_help = '| '.
+ &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
+ "Problem Editing Help").
+ ' | '.
+ &Apache::loncommon::help_open_menu(undef,undef,5,'Authoring').
+ ' |
';
+ if ($cols > 80) { $cols = 80; }
+ if ($cols < 70) { $cols = 70; }
+ if ($rows < 20) { $rows = 20; }
+ my $js =
+ &Apache::edit::js_change_detection().
+ &Apache::loncommon::resize_textarea_js();
+ my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1;
+ my $start_page =
+ &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
+ {'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.
+ &renderpage($request,$file,['no_output_web'],1).
+ &Apache::lonxml::message_location().'
+ '.&Apache::loncommon::end_page();
+ &Apache::lonxml::add_messages(\$result);
+ $request->print($result);
+ }
+ return '';
+}
+
+#
+# Render the page in whatever target desired.
+#
+sub renderpage {
+ my ($request,$file,$targets,$return_string) = @_;
+
+ my @targets = @{$targets || [&get_target()]};
+ &Apache::lonhomework::showhashsubset(\%env,'form.');
+ &Apache::lonxml::debug("Running targets ".join(':',@targets));
+
+ my $overall_result;
+ foreach my $target (@targets) {
+ # FIXME need to do something intelligent when a problem goes
+ # from viewable to not viewable due to map conditions
+ #&setuppermissions();
+ #if ( $Apache::lonhomework::browse ne '2'
+ # && $Apache::lonhomework::browse ne 'F' ) {
+ # $request->print(" You most likely shouldn't see me.");
+ #}
+ #my $t0 = [&gettimeofday()];
+ my $output=1;
+ if ($target eq 'no_output_web') {
+ $target = 'web'; $output=0;
+ }
+ my $problem=&Apache::lonnet::getfile($file);
+ my $result;
+ if ($problem eq -1) {
+ $problem='';
+ my $filename=(split('/',$file))[-1];
+ my $error =
+ " ".&mt('Unable to find [_1]',
+ ' '.$filename.'')
+ ."";
+ $result.=
+ &Apache::loncommon::simple_error_page($request,'Not available',
+ $error);
+ return;
+ }
+
+ my %mystyle;
+ if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
+ if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
+ if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
+
+ &Apache::lonxml::debug("Should be parsing now");
+ $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
+ &setup_vars($target),%mystyle);
+ &finished_parsing();
+ if (!$output) { $result = ''; }
+ #$request->print("Result follows:");
+ if ($target eq 'modified') {
+ &handle_save_or_undo($request,\$problem,\$result);
+ } else {
+ if ($target eq 'analyze') {
+ $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
+ undef(%Apache::lonhomework::analyze);
+ }
+ #my $td=&tv_interval($t0);
+ #if ( $Apache::lonxml::debug) {
+ #$result =~ s: