--- rat/lonpage.pm 2002/08/12 18:21:42 1.44 +++ rat/lonpage.pm 2007/05/22 00:26:31 1.77 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Page Handler # -# $Id: lonpage.pm,v 1.44 2002/08/12 18:21:42 albertel Exp $ +# $Id: lonpage.pm,v 1.77 2007/05/22 00:26:31 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -25,30 +25,23 @@ # # http://www.lon-capa.org/ # -# (TeX Content Handler -# -# YEAR=2000 -# 05/29/00,05/30 Gerd Kortemeyer) -# 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23, -# 10/02,10/10,10/14,10/16,10/18,10/19,10/31,11/6,11/14,11/16, -# YEAR=2001 -# 08/13/01,08/30,10/1 Gerd Kortemeyer -# 12/16 Scott Harrison -# YEAR=2002 -# 03/19 Gerd Kortemeyer -# ### package Apache::lonpage; use strict; use Apache::Constants qw(:common :http); -use Apache::lonnet(); +use Apache::lonnet; use Apache::loncommon(); use Apache::lonxml(); +use Apache::lonlocal; +use Apache::lonmenu; use HTML::TokeParser; use GDBM_File; use Apache::lonsequence; +use lib '/home/httpd/lib/perl/'; +use LONCAPA; + # -------------------------------------------------------------- Module Globals my %hash; @@ -72,66 +65,70 @@ sub euclid { sub tracetable { my ($sofar,$rid,$beenhere)=@_; my $further=$sofar; + my $randomout=0; + unless ($env{'request.role.adv'}) { + $randomout = $hash{'randomout_'.$rid}; + } unless ($beenhere=~/\&$rid\&/) { - $beenhere.=$rid.'&'; - - if (defined($hash{'is_map_'.$rid})) { - if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && - (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { - my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; - $sofar= - &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, - '&'.$frid.'&'); - $sofar++; - if ($hash{'src_'.$frid}) { - my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid}); - if (($brepriv eq '2') || ($brepriv eq 'F')) { - if (defined($rows[$sofar])) { - $rows[$sofar].='&'.$frid; - } else { - $rows[$sofar]=$frid; - } - } - } - } - } else { - $sofar++; - if ($hash{'src_'.$rid}) { - my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid}); - if (($brepriv eq '2') || ($brepriv eq 'F')) { - if (defined($rows[$sofar])) { - $rows[$sofar].='&'.$rid; - } else { - $rows[$sofar]=$rid; - } - } - } - } - - if (defined($hash{'to_'.$rid})) { - my $mincond=1; - my $next=''; - foreach (split(/\,/,$hash{'to_'.$rid})) { - my $thiscond= + $beenhere.=$rid.'&'; + unless ($randomout) { + if (defined($hash{'is_map_'.$rid})) { + if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && + (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { + my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; + $sofar= + &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, + '&'.$frid.'&'); + $sofar++; + if ($hash{'src_'.$frid}) { + my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid}); + if (($brepriv eq '2') || ($brepriv eq 'F')) { + if (defined($rows[$sofar])) { + $rows[$sofar].='&'.$frid; + } else { + $rows[$sofar]=$frid; + } + } + } + } + } else { + $sofar++; + if ($hash{'src_'.$rid}) { + my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid}); + if (($brepriv eq '2') || ($brepriv eq 'F')) { + if (defined($rows[$sofar])) { + $rows[$sofar].='&'.$rid; + } else { + $rows[$sofar]=$rid; + } + } + } + } + } + + if (defined($hash{'to_'.$rid})) { + my $mincond=1; + my $next=''; + foreach (split(/\,/,$hash{'to_'.$rid})) { + my $thiscond= &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}}); - if ($thiscond>=$mincond) { - if ($next) { - $next.=','.$_.':'.$thiscond; - } else { - $next=$_.':'.$thiscond; - } - if ($thiscond>$mincond) { $mincond=$thiscond; } - } - } - foreach (split(/\,/,$next)) { - my ($linkid,$condval)=split(/\:/,$_); - if ($condval>=$mincond) { - my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere); - if ($now>$further) { $further=$now; } - } - } - - } + if ($thiscond>=$mincond) { + if ($next) { + $next.=','.$_.':'.$thiscond; + } else { + $next=$_.':'.$thiscond; + } + if ($thiscond>$mincond) { $mincond=$thiscond; } + } + } + foreach (split(/\,/,$next)) { + my ($linkid,$condval)=split(/\:/,$_); + if ($condval>=$mincond) { + my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere); + if ($now>$further) { $further=$now; } + } + } + } } return $further; } @@ -144,10 +141,10 @@ sub handler { # ------------------------------------------- Set document type for header only if ($r->header_only) { - if ($ENV{'browser.mathml'}) { - $r->content_type('text/xml'); + if ($env{'browser.mathml'}) { + &Apache::loncommon::content_type($r,'text/xml'); } else { - $r->content_type('text/html'); + &Apache::loncommon::content_type($r,'text/html'); } $r->send_http_header; return OK; @@ -157,10 +154,16 @@ sub handler { ['forceselect','launch']); my $number_of_columns = 1; my $requrl=$r->uri; - my $target = $ENV{'form.grade_target'}; + my $target = $env{'form.grade_target'}; +# &Apache::lonnet::logthis("Got a target of $target"); + if ($target eq 'meta') { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + return OK; + } # ----------------------------------------------------------------- Tie db file - if (($ENV{'request.course.fn'}) && (!$ENV{'form.forceselect'})) { - my $fn=$ENV{'request.course.fn'}; + if (($env{'request.course.fn'}) && (!$env{'form.forceselect'})) { + my $fn=$env{'request.course.fn'}; if (-e "$fn.db") { if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) { # ------------------------------------------------------------------- Hash tied @@ -171,14 +174,7 @@ sub handler { @rows=(); - &tracetable(0,$firstres,'&'.$lastres.'&'); - if ($hash{'src_'.$lastres}) { - my $brepriv= - &Apache::lonnet::allowed('bre',$hash{'src_'.$lastres}); - if (($brepriv eq '2') || ($brepriv eq 'F')) { - $rows[$#rows+1]=''.$lastres; - } - } + &tracetable(0,$firstres,'&'); # ------------------------------------------------------------ Add to symb list @@ -187,8 +183,10 @@ sub handler { for ($i=0;$i<=$#rows;$i++) { if ($rows[$i]) { my @colcont=split(/\&/,$rows[$i]); - foreach (@colcont) { - $symbhash{$hash{'src_'.$_}}=''; + foreach my $rid (@colcont) { + my ($mapid,$resid)=split(/\./,$rid); + $symbhash{$hash{'src_'.$rid}}= + [$hash{'src_'.$rid},$resid]; } } } @@ -228,24 +226,58 @@ sub handler { $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1)); foreach (@colcont) { my $src=$hash{'src_'.$_}; - $src=~/\.(\w+)$/; + my ($extension)=($src=~/\.(\w+)$/); + if ($hash{'encrypted_'.$_}) { + $src=&Apache::lonenc::encrypted($src); + } $metalink{$_}=$src.'.meta'; - $cellemb{$_}=Apache::loncommon::fileembstyle($1); + $cellemb{$_}= + &Apache::loncommon::fileembstyle($extension); if ($cellemb{$_} eq 'ssi') { # --------------------------------------------------------- This is an SSI cell + my ($mapid,$resid)=split(/\./,$_); + my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$src); + my $prefix=$_.'_'; - my %posthash=('request.prefix' => $prefix); - if (($ENV{'form.'.$prefix.'submit'}) - || ($ENV{'form.all_submit'})) { - foreach (keys %ENV) { - if ($_=~/^form.$prefix/) { - my $name=$_; - $name=~s/^form.$prefix//; - $posthash{$name}=$ENV{$_}; - } - } + my %posthash=('request.prefix' => $prefix, + 'LONCAPA_INTERNAL_no_discussion' => 'true', + 'symb' => $symb); + if ($env{'form.grade_target'} eq 'tex') { + $posthash{'grade_target'}=$env{'form.grade_target'}; + $posthash{'textwidth'}=$env{'form.textwidth'}; + $posthash{'problem_split'}=$env{'form.problem_split'}; + $posthash{'latex_type'}=$env{'form.latex_type'}; + $posthash{'rndseed'}=$env{'form.rndseed'}; + } + my $submitted=exists($env{'form.all_submit'}); + if (!$submitted) { + foreach my $key (keys(%env)) { + if ($key=~/^form.\Q$prefix\Esubmit_/) { + $submitted=1;last; + } + } + } + if ($submitted) { + foreach my $key (keys(%env)) { + if ($key=~/^form.\Q$prefix\E/) { + my $name=$key; + $name=~s/^form.\Q$prefix\E//; + $posthash{$name}=$env{$key}; + } + } + if (exists($env{'form.all_submit'})) { + $posthash{'all_submit'}='yes'; + } } my $output=Apache::lonnet::ssi($src,%posthash); + $output=~s|//(\s*)?\s||gs; + if ($target eq 'tex') { + $output =~ s/^([^&]+)\\begin{document}//; + $output =~ s/\\end{document}//; + $output = '\parbox{\minipagewidth}{ '.$output.' }'; + #some additional cleanup necessary for LateX (due to limitations of table environment + $output =~ s/(\\vskip\s*\d+mm)\s*(\\\\)+/$1/g; + } my $parser=HTML::TokeParser->new(\$output); my $token; my $thisdir=$src; @@ -329,46 +361,42 @@ sub handler { } } unless ($contents) { - $r->content_type('text/html'); + &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; - $r->print('
Empty page.'); + $r->print(&Apache::loncommon::start_page(undef,undef, + {'force_register' => 1,})); + $r->print(&mt('This page is either empty or it only contains resources that are currently hidden').'. '); + $r->print('