--- loncom/homework/lonhomework.pm 2003/09/17 18:16:39 1.144 +++ loncom/homework/lonhomework.pm 2005/01/28 09:48:53 1.193 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # The LON-CAPA Homework handler # -# $Id: lonhomework.pm,v 1.144 2003/09/17 18:16:39 albertel Exp $ +# $Id: lonhomework.pm,v 1.193 2005/01/28 09:48:53 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -24,11 +24,7 @@ # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ -# -# Guy Albertelli -# 11/30 Gerd Kortemeyer -# 6/1,8/17,8/18 Gerd Kortemeyer -# 7/18 Jeremy Bowers + package Apache::lonhomework; use strict; @@ -51,212 +47,341 @@ use Apache::externalresponse(); use Apache::rankresponse(); use Apache::matchresponse(); use Apache::chemresponse(); +use Apache::drawimage(); use Apache::Constants qw(:common); use HTML::Entities(); use Apache::loncommon(); -#use Time::HiRes qw( gettimeofday tv_interval ); +use Apache::lonlocal; +use Time::HiRes qw( gettimeofday tv_interval ); +use Apache::lonnet(); + +# FIXME - improve commenting + BEGIN { - &Apache::lonxml::register_insert(); + &Apache::lonxml::register_insert(); } + +# +# Decides what targets to render for. +# Implicit inputs: +# Various session environment variables: +# request.state - published - is a /res/ resource +# uploaded - is a /uploaded/ resource +# contruct - is a /priv/ resource +# form.grade_target - a form parameter requesting a specific target sub get_target { - 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'}); - } - - if ( defined($ENV{'form.submitted'}) && - ( !defined($ENV{'form.resetdata'})) && - ( !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.problemmode'} eq 'View' || - $ENV{'form.problemmode'} eq 'Discard Edits and View') { + &Apache::lonxml::debug("request.state = $ENV{'request.state'}"); + if( defined($ENV{'form.grade_target'})) { + &Apache::lonxml::debug("form.grade_target= $ENV{'form.grade_target'}"); + } else { + &Apache::lonxml::debug("form.grade_target "); + } + if (($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 ($ENV{'form.grade_target'}); + } + if ( defined($ENV{'form.submitted'}) && - (!defined($ENV{'form.resetdata'})) && - (!defined($ENV{'form.newrandomization'}))) { - return ('grade', 'web','answer'); - } else { - return ('web','answer'); - } - } elsif ( $ENV{'form.problemmode'} eq 'Edit' ) { - if ( $ENV{'form.submitted'} eq 'edit' ) { - if ( $ENV{'form.submit'} eq 'Submit Changes and View' ) { - return ('modified','web','answer'); - } else { - return ('modified','edit'); - } - } else { - return ('edit'); - } - } else { - return ('web'); - } + ( !defined($ENV{'form.resetdata'})) && + ( !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.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 ( $ENV{'form.submit'} eq &mt('Submit Changes and View') ) { + return ('modified','web','answer'); + } else { + return ('modified','edit'); + } + } else { + return ('edit'); + } + } else { + return ('web'); + } + } } - } - return (); + return (); } sub setup_vars { - my ($target) = @_; - return ';' + my ($target) = @_; + return ';' # return ';$external::target='.$target.';'; } sub send_header { - my ($request)= @_; - $request->print(&Apache::lontexconvert::header()); + my ($request)= @_; + $request->print(&Apache::lontexconvert::header()); # $request->print('
'); } sub createmenu { - my ($which,$request)=@_; - if ($which eq 'grade') { - $request->print(''); - } + } } sub send_footer { - my ($request)= @_; + my ($request)= @_; # $request->print('
'); - $request->print(&Apache::lontexconvert::footer()); + $request->print(&Apache::lontexconvert::footer()); } $Apache::lonxml::browse=''; +sub check_ip_acc { + my ($acc)=@_; + if (!defined($acc) || $acc =~ /^\s*$/) { return 1; } + my $allowed=0; + my $ip=$ENV{'REMOTE_ADDR'}; + my $name; + foreach my $pattern (split(',',$acc)) { + 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 $allowed; +} # JB, 9/24/2002: Any changes in this function may require a change # in lonnavmaps::resource::getDateStatus. sub check_access { - my ($id) = @_; - my $date =''; - my $status; - my $datemsg = ''; - my $lastdate = ''; - my $temp; - my $type; - my $passed; - - if ($ENV{'request.state'} eq "construct") { - &Apache::lonxml::debug("in construction ignoring dates"); - $status='CAN_ANSWER'; - $datemsg='is in under construction'; - return ($status,$datemsg); - } + my ($id) = @_; + my $date =''; + my $status; + my $datemsg = ''; + my $lastdate = ''; + my $temp; + 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); - foreach $temp ("opendate","duedate","answerdate") { - $lastdate = $date; - $date = &Apache::lonnet::EXT("resource.$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'; - $date="may open later."; - return($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 = "an unknown date"; $passed = 0; - } elsif ($date eq 'con_lost') { - $date = "an indeterminate date"; $passed = 0; - } else { - if (time < $date) { $passed = 0; } else { $passed = 1; } - $date = localtime $date; + &Apache::lonxml::debug("checking for part :$id:"); + &Apache::lonxml::debug("time:".time); + + 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 $temp ("opendate","duedate","answerdate") { + $lastdate = $date; + $date = &Apache::lonnet::EXT("resource.$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")." $date"; + } } - if (!$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 on $lastdate, and answers will be available on $date"; - } - if ($status eq 'CAN_ANSWER') { - #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 '' ) { $maxtries = '2'; } - if ($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') { + #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'; + $datemsg=&seconds_to_human_length($interval); + } else { + my $newdate=localtime($first_access+$interval); + if (time > ($first_access+$interval)) { + $status='CLOSED'; + $datemsg = &mt("was due on")." $newdate".&mt(", and answers will be available on")." $date"; + } else { + $datemsg = &mt("is due at")." $newdate"; + } + } + } } - } - #if (($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'; - $datemsg='is closed but you are allowed to view it'; - } + &Apache::lonxml::debug("sending back :$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,$datemsg); +} + +sub seconds_to_human_length { + my ($length)=@_; - return ($status,$datemsg); + 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 $timestr; } sub showhash { - my (%hash) = @_; - &showhashsubset(\%hash,'.'); - return ''; + my (%hash) = @_; + &showhashsubset(\%hash,'.'); + return ''; } sub showarray { my ($array)=@_; my $string="("; foreach my $elm (@{ $array }) { - if (ref($elm)) { - if ($elm =~ /ARRAY/ ) { - $string.=&showarray($elm); - } + if (ref($elm) eq 'ARRAY') { + $string.=&showarray($elm); + } elsif (ref($elm) eq 'HASH') { + $string.= "HASH --- \n
"; + $string.= &showhashsubset($elm,'.'); } else { $string.="$elm," } @@ -267,50 +392,50 @@ sub showarray { } sub showhashsubset { - my ($hash,$keyre) = @_; - my $resultkey; - foreach $resultkey (sort keys %$hash) { - if ($resultkey =~ /$keyre/) { - if (ref($$hash{$resultkey})) { - if ($$hash{$resultkey} =~ /ARRAY/ ) { + my ($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 ($$hash{$resultkey} =~ /HASH/ ) { + } elsif (ref($$hash{$resultkey}) eq 'HASH' ) { &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); &showhashsubset($$hash{$resultkey},'.'); } else { &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); } - } else { - &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); - } - } - } - &Apache::lonxml::debug("\n
restored values^
\n"); - return ''; + } + &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'}. + $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$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; - return '' + } + $Apache::lonhomework::viewgrades = $viewgrades; # File global variable...dirt. + if ($Apache::lonhomework::browse eq 'F' && + $ENV{'form.devalidatecourseresdata'} eq 'on') { + my (undef,$courseid) = &Apache::lonxml::whichuser(); + &Apache::lonnet::devalidatecourseresdata($ENV{"course.$courseid.num"}, + $ENV{"course.$courseid.domain"}); + } + return '' } sub setupheader { my $request=$_[0]; if ($ENV{'browser.mathml'}) { - $request->content_type('text/xml'); + &Apache::loncommon::content_type($request,'text/xml'); } else { - $request->content_type('text/html'); + &Apache::loncommon::content_type($request,'text/html'); } - $request->content_encoding('UTF-8'); if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) { &Apache::loncommon::no_cache($request); } @@ -320,58 +445,68 @@ sub setupheader { } 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 'undo') { + my ($request,$problem,$result) = @_; + my $file = &Apache::lonnet::filelocation("",$request->uri); + my $filebak =$file.".bak"; + my $filetmp =$file.".tmp"; 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) { - $request->print("

Undid changes, Switched $filebak and $file

"); - } else { - $request->print("

Unable to undo, unable to switch $filebak and $file

"); - $error=1; - } - } else { - my $fs=Apache::File->new(">$filebak"); - if (defined($fs)) { - print $fs $$problem; - $request->print("Making Backup to $filebak
"); - } else { - $request->print("Unable to make backup $filebak"); - $error=2; - } - my $fh=Apache::File->new(">$file"); - if (defined($fh)) { - print $fh $$result; - $request->print("Saving Modifications to $file
"); + + &Apache::lonnet::correct_line_ends($result); + + 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")." $filebak ".&mt("and")." $file

"); + } else { + &Apache::lonxml::info("

".&mt("Unable to undo, unable to switch")." $filebak ".&mt("and")." $file

"); + $error=1; + } } else { - $request->print("Unable to write to $file"); - $error|=4; + my $fs=Apache::File->new(">$filebak"); + if (defined($fs)) { + print $fs $$problem; + &Apache::lonxml::info("".&mt("Making Backup to"). + " $filebak"); + } else { + &Apache::lonxml::info("".&mt("Unable to make backup")." $filebak"); + $error=2; + } + my $fh=Apache::File->new(">$file"); + if (defined($fh)) { + print $fh $$result; + &Apache::lonxml::info("".&mt("Saving Modifications to"). + " $file"); + } else { + &Apache::lonxml::info("". + &mt("Unable to write to")." $file"); + $error|=4; + } } - } - return $error; + return $error; } sub analyze_header { my ($request) = @_; + my $bodytag=''; + if ($ENV{'environment.remote'} eq 'off') { + $bodytag=&Apache::loncommon::bodytag(); + } my $result.=' - Analyzing a problem - + '.&mt("Analyzing a problem").' + '.$bodytag.&Apache::lonxml::message_location().'
- - + &HTML::Entities::encode($ENV{'request.uri'},'<>&"').'">'. + &Apache::structuretags::remember_problem_state().' + +
- +
- List of possible answers:
'; + &Apache::lonxml::add_messages(\$result); $request->print($result); $request->rflush(); } @@ -392,12 +527,14 @@ sub analyze { my $rndseed=$ENV{'form.rndseed'}; &analyze_header($request); my %prog_state= - &Apache::lonhtmlcommon::Create_PrgWin($request,'Analyze Progress', - 'Getting Problem Variants', - $ENV{'form.numtoanalyze'}); + &Apache::lonhtmlcommon::Create_PrgWin($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($request,\%prog_state, - 'last problem'); + &mt('last problem')); + if (&Apache::loncommon::connection_aborted($request)) { return; } my $subresult=&Apache::lonnet::ssi($request->uri, ('grade_target' => 'analyze'), ('rndseed' => $i+$rndseed)); @@ -418,16 +555,17 @@ sub analyze { } } &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state, - 'Analyzing Results'); + &mt('Analyzing Results')); + $request->print('
'.&mt('List of possible answers').': '); foreach my $part (sort(keys(%allparts))) { if (defined(@{ $overall{$part.'.answer'} })) { my $num_cols=scalar(@{ $overall{$part.'.answer'}->[0] }); - $request->print(''); + $request->print('
Part '.$part.'
'); my %frequency; foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'} })) { $frequency{join("\0",@{ $answer })}++; } - $request->print(''); + $request->print(''); foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) { $request->print('
'.&mt('Part').' '.$part.'
AnswerFrequency
'.&mt('Answer').''.&mt('Frequency').'
'. join('',split("\0",$answer)). @@ -436,14 +574,12 @@ sub analyze { } $request->print('
'); } else { - $request->print('

Part '.$part. - ' is not analyzable at this time

'); + $request->print('

'.&mt('Response').' '.$part.' '. + &mt('is not analyzable at this time').'

'); } } if (scalar(keys(%allparts)) == 0 ) { - $request->print('

Found no analyzable parts in this problem, - currently only Numerical, Formula and String response - styles are supported.

'); + $request->print('

'.&mt('Found no analyzable respones in this problem, currently only Numerical, Formula and String response styles are supported.').'

'); } &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state); &analyze_footer($request); @@ -452,115 +588,142 @@ sub analyze { } sub editxmlmode { - my ($request,$file) = @_; - my $result; - my $problem=&Apache::lonnet::getfile($file); - if ($problem eq -1) { - &Apache::lonxml::error(" 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 ( $ENV{'form.submit'} eq 'Submit Changes and View' ) { + my ($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'); - $ENV{'form.problemmode'}='View'; - &renderpage($request,$file); - } else { - my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem); - my $xml_help = Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index", - "Problem Editing Help"); - if ($cols > 80) { $cols = 80; } - if ($cols < 70) { $cols = 70; } - if ($rows < 20) { $rows = 20; } - $result.=' + 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 $xml_help = '
'. + &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index", + "Problem Editing Help"). + ''. + &Apache::loncommon::help_open_menu('',undef,undef,undef,5,'Authoring'). + '
'; + if ($cols > 80) { $cols = 80; } + if ($cols < 70) { $cols = 70; } + if ($rows < 20) { $rows = 20; } + my $bodytag=''; + if ($ENV{'environment.remote'} eq 'off') { + $bodytag=&Apache::loncommon::bodytag(); + } + $result.=''.$bodytag.&Apache::lonxml::message_location().'
- - - + &HTML::Entities::encode($ENV{'request.uri'},'<>&"').'">'. + &Apache::structuretags::remember_problem_state().' + + +
- - - + + +
' . $xml_help . ' + &HTML::Entities::encode($problem,'<>&"').'
'; - $request->print($result); - } - return ''; + &Apache::lonxml::add_messages(\$result); + $request->print($result); + } + return ''; } +# +# Render the page in whatever target desired. +# sub renderpage { - my ($request,$file) = @_; + my ($request,$file) = @_; - my (@targets) = &get_target(); - &Apache::lonxml::debug("Running targets ".join(':',@targets)); - foreach my $target (@targets) { - #my $t0 = [&gettimeofday()]; - my $problem=&Apache::lonnet::getfile($file); - if ($problem eq -1) { - &Apache::lonxml::error(" Unable to find $file"); - $problem=''; - } + my (@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 $problem=&Apache::lonnet::getfile($file); + if ($problem eq -1) { + &Apache::lonxml::error(" ".&mt('Unable to find')." $file"); + $problem=''; + } - my %mystyle; - my $result = ''; - if ($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); - undef($Apache::lonhomework::parsing_a_problem); - #$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:::; - #$result.="
Spent $td seconds processing target $target\n"; - #} - $request->print($result); - $request->rflush(); + my %mystyle; + my $result = ''; + if ($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); + undef($Apache::lonhomework::parsing_a_problem); + #$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:::; + #$result.="
Spent $td seconds processing target $target\n"; + #} +# $request->print($result); + $overall_result.=$result; +# $request->rflush(); + } + #$request->print(":Result ends"); + #my $td=&tv_interval($t0); } - #$request->print(":Result ends"); - #my $td=&tv_interval($t0); - } + &Apache::lonxml::add_messages(\$overall_result); + $request->print($overall_result); + $request->rflush(); } # with no arg it returns a HTML \n'; - } - return $result; + if (@allnames && !$result) { + $result="\n'; + } + return $result; } sub newproblem { @@ -586,126 +749,140 @@ sub newproblem { copy($templatefilename,$dest); &renderpage($request,$dest); } else { - my $url=$request->uri; + my $url=&HTML::Entities::encode($request->uri,'<>&"'); + my $shownurl=$url; + $shownurl=~s-^/~-/priv/-; my $dest = &Apache::lonnet::filelocation("",$request->uri); my $errormsg; if ($ENV{'form.newfile'}) { - $errormsg='

You did not select a template.

'."\n"; + $errormsg='

'.&mt('You did not select a template.').'

'."\n"; } my $instructions; - if ($templatelist) { $instructions=", select a template from the pull-down menu below.
Then";} + my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef, + ($ENV{'environment.remote'} ne 'off')); + if ($templatelist) { $instructions=&mt(", select a template from the pull-down menu below.").'
'.&mt("Then");} + 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(< -

Creating a new $extension resource

+$bodytag +

$lt{'create'} $extension $lt{'resource'}

$errormsg -The requested file $url currently does not exist. +$lt{'requested'} $shownurl $lt{'not exist'}.

-To create a new $extension$instructions click on the "Create $extension" button. +$lt{'createnew'} $extension$instructions $lt{'click'} "$lt{'Create'} $extension" $lt{'button'}.

ENDNEWPROBLEM if (defined($templatelist)) { $request->print(""); } - $request->print("
"); + $request->print("
"); $request->print("

"); } return ''; } sub view_or_edit_menu { - my ($request) = @_; - my $url=$request->uri; - $request->print(<uri,'<>&"'); + my %lt=&Apache::lonlocal::texthash( 'would' => 'Would you like to', + 'view' => 'View', + 'Edit' => 'edit', + 'or' => 'or', + 'the problem' => 'the problem'); + $request->print(<
-Would you like to or - the problem. +$lt{'would'} +<{'or'} +<{'the problem'}.
EDITMENU } sub handler { - #my $t0 = [&gettimeofday()]; - my $request=$_[0]; - - $Apache::lonxml::debug=$ENV{'user.debug'}; - - if (&setupheader($request)) { return OK; } - $ENV{'request.uri'}=$request->uri; - - #setup permissions - $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'}); - $Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}); - &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:"); - # some times multiple problemmodes are submitted, need to select - # the last one - &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'}); - if ( defined($ENV{'form.problemmode'}) && - ref($ENV{'form.problemmode'}) ) { - &Apache::lonxml::debug("Problem Mode ".join(",",@$ENV{'form.problemmode'})); - my $mode=$ENV{'form.problemmode'}->[-1]; - undef $ENV{'form.problemmode'}; - $ENV{'form.problemmode'}=$mode; - } - &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'}); - my $file=&Apache::lonnet::filelocation("",$request->uri); - - #check if we know where we are - if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) { - # if we are browsing we might not be able to know where we are - if ($Apache::lonhomework::browse ne 'F') { - #should know where we are, so ask - if ( &Apache::lonnet::mod_perl_version() == 2 ) { - &Apache::lonnet::cleanenv(); - } - $request->internal_redirect('/adm/ambiguous'); return; - } - } - - my ($symb) = &Apache::lonxml::whichuser(); - &Apache::lonxml::debug('symb is '.$symb); - if ($ENV{'request.state'} eq "construct" || $symb eq '') { - if ($ENV{'form.resetdata'} eq 'Reset Submissions' || - $ENV{'form.resetdata'} eq 'New Problem Variation' || - $ENV{'form.newrandomization'} eq 'New Randomization') { - my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); - &Apache::lonnet::tmpreset($symb,'',$domain,$name); -&Apache::lonxml::debug("Attempt reset"); - } - } - if ($ENV{'request.state'} eq "construct") { - if ( -e $file ) { - &Apache::loncommon::get_unprocessed_cgi - ($ENV{'QUERY_STRING'},['problemmode']); - if (!(defined $ENV{'form.problemmode'})) { - #first visit to problem in construction space - #&view_or_edit_menu($request); - $ENV{'form.problemmode'}='View'; - &renderpage($request,$file); - } elsif ($ENV{'form.problemmode'} eq 'EditXML') { - &editxmlmode($request,$file); - } elsif ($ENV{'form.problemmode'} eq 'Calculate answers') { - &analyze($request,$file); - } else { - &renderpage($request,$file); - } + #my $t0 = [&gettimeofday()]; + my $request=$_[0]; + + $Apache::lonxml::debug=$ENV{'user.debug'}; + $ENV{'request.uri'}=$request->uri; + &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); + + #check if we know where we are + if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) { + # if we are browsing we might not be able to know where we are + if ($Apache::lonhomework::browse ne 'F' && + $ENV{'request.state'} ne "construct") { + #should know where we are, so ask + if ( &Apache::lonnet::mod_perl_version() == 2 ) { + &Apache::lonnet::cleanenv(); + } + &Apache::lonnet::logthis(&Apache::lonnet::mod_perl_version()); + $request->internal_redirect('/adm/ambiguous'); return OK; + } + } + if (&setupheader($request)) { return OK; } + &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:"); + &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'}); + my ($symb) = &Apache::lonxml::whichuser(); + &Apache::lonxml::debug('symb is '.$symb); + if ($ENV{'request.state'} eq "construct" || $symb eq '') { + if ($ENV{'form.resetdata'} eq &mt('Reset Submissions') || + $ENV{'form.resetdata'} eq &mt('New Problem Variation') || + $ENV{'form.newrandomization'} eq &mt('New Randomization')) { + my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); + &Apache::lonnet::tmpreset($symb,'',$domain,$name); + &Apache::lonxml::debug("Attempt reset"); + } + } + if ($ENV{'request.state'} eq "construct") { + if ( -e $file ) { + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['problemmode']); + if (!(defined $ENV{'form.problemmode'})) { + #first visit to problem in construction space + #&view_or_edit_menu($request); + $ENV{'form.problemmode'}='View'; + &renderpage($request,$file); + } elsif ($ENV{'form.problemmode'} eq &mt('EditXML') || + $ENV{'form.problemmode'} eq 'EditXML') { + &editxmlmode($request,$file); + } elsif ($ENV{'form.problemmode'} eq &mt('Calculate answers')) { + &analyze($request,$file); + } else { + &renderpage($request,$file); + } + } else { + # requested file doesn't exist in contruction space + &newproblem($request); + } } else { - # requested file doesn't exist in contruction space - &newproblem($request); + # just render the page normally outside of construction space + &Apache::lonxml::debug("not construct"); + &renderpage($request,$file); } - } else { - # just render the page normally outside of construction space - &Apache::lonxml::debug("not construct"); - &renderpage($request,$file); - } - #my $td=&tv_interval($t0); - #&Apache::lonxml::debug("Spent $td seconds processing"); - # &Apache::lonhomework::send_footer($request); - # always turn off debug messages - $Apache::lonxml::debug=0; - return OK; + #my $td=&tv_interval($t0); + #&Apache::lonxml::debug("Spent $td seconds processing"); + # &Apache::lonhomework::send_footer($request); + # always turn off debug messages + $Apache::lonxml::debug=0; + return OK; } 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.