--- rat/lonuserstate.pm 2003/10/22 16:52:14 1.62 +++ rat/lonuserstate.pm 2004/11/10 21:30:48 1.82 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Construct and maintain state and binary representation of course for user # -# $Id: lonuserstate.pm,v 1.62 2003/10/22 16:52:14 www Exp $ +# $Id: lonuserstate.pm,v 1.82 2004/11/10 21:30:48 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -25,22 +25,6 @@ # # http://www.lon-capa.org/ # -# (Server for RAT Maps -# -# (Edit Handler for RAT Maps -# (TeX Content Handler -# -# YEAR=2000 -# 05/29/00,05/30 Gerd Kortemeyer) -# 7/1 Gerd Kortemeyer) -# 7/1,7/3,7/4,7/7,7/8,7/10 Gerd Kortemeyer) -# -# 7/15,7/17,7/18,8/1,8/2,8/4,8/5,8/21,8/22,8/23,8/30, -# 9/2,9/4,9/29,9/30,10/2,10/11,10/30,10/31, -# 11/1,11/2,11/14,11/16,11/22,12/28, -# YEAR=2001 -# 07/05/01,08/30,08/31 Gerd Kortemeyer -# ### package Apache::lonuserstate; @@ -57,6 +41,7 @@ use Apache::lonmsg; use Safe; use Safe::Hole; use Opcode; +use Apache::lonenc; # ---------------------------------------------------- Globals for this package @@ -68,6 +53,8 @@ my $errtext; # variable with all errors my $retfurl; # variable with the very first URL in the course my %randompick; # randomly picked resources my %randompickseed; # optional seed for randomly picking resources +my %encurl; # URLs in this folder are supposed to be encrypted +my %hiddenurl; # this URL (or complete folder) is supposed to be hidden # ----------------------------------- Remove version from URL and store in hash @@ -89,7 +76,10 @@ sub putinversion { my $uri=shift; if ($hash{'version_'.$uri}) { my $version=$hash{'version_'.$uri}; - if ($version eq 'current') { return $uri; } + if ($version eq 'mostrecent') { return $uri; } + if ($version eq &Apache::lonnet::getversion( + &Apache::lonnet::filelocation('',$uri))) + { return $uri; } $uri=~s/\.(\w+)$/\.$version\.$1/; } return $uri; @@ -98,7 +88,7 @@ sub putinversion { # ----------------------------------------- Processing versions file for course sub processversionfile { - my %cenv=shift; + my %cenv=@_; my %versions=&Apache::lonnet::dump('resourceversions', $cenv{'domain'}, $cenv{'num'}); @@ -161,34 +151,38 @@ sub loadmap { } } &Apache::lonnet::do_cache(\%Apache::lonnet::titlecache, - &Apache::lonnet::symbclean( - &Apache::lonnet::declutter($uri).'___'. - $token->[2]->{'id'}.'___'. - &Apache::lonnet::declutter($turi)), - $token->[2]->{'title'}); + &Apache::lonnet::encode_symb($uri,$token->[2]->{'id'}, + $turi), + $token->[2]->{'title'},'title'); unless ($ispage) { $turi=~/\.(\w+)$/; my $embstyle=&Apache::loncommon::fileembstyle($1); if ($token->[2]->{'external'} eq 'true') { # external $turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//; } elsif ($turi=~/^\/*uploaded\//) { # uploaded - if (($embstyle eq 'img') || ($embstyle eq 'emb') - || ($embstyle eq 'ssi')) { + if (($embstyle eq 'img') || ($embstyle eq 'emb')) { $turi='/adm/wrapper'.$turi; - } elsif ($turi!~/\.(sequence|page)$/) { + } elsif ($embstyle eq 'ssi') { + #do nothing with these + } elsif ($turi!~/\.(sequence|page)$/) { $turi='/adm/coursedocs/showdoc'.$turi; } - } else { # normal internal resource - if (($embstyle eq 'img') || ($embstyle eq 'emb')) { - $turi='/adm/wrapper'.$turi; - } + } elsif ($turi=~/\S/) { # normal non-empty internal resource + my $mapdir=$uri; + $mapdir=~s/[^\/]+$//; + $turi=&Apache::lonnet::hreflocation($mapdir,$turi); + if (($embstyle eq 'img') || ($embstyle eq 'emb')) { + $turi='/adm/wrapper'.$turi; + } } } - - if (defined($hash{'ids_'.$turi})) { - $hash{'ids_'.$turi}.=','.$rid; +# Store reverse lookup, remove query string + my $idsuri=$turi; + $idsuri=~s/\?.+$//; + if (defined($hash{'ids_'.$idsuri})) { + $hash{'ids_'.$idsuri}.=','.$rid; } else { - $hash{'ids_'.$turi}=''.$rid; + $hash{'ids_'.$idsuri}=''.$rid; } if @@ -267,27 +261,42 @@ sub loadmap { # ------------------------------------------------------------------- Parameter my $referid=$lpc.'.'.$token->[2]->{'to'}; - my $part=$token->[2]->{'part'}; - unless ($part) { $part=0; } + my $name=$token->[2]->{'name'}; + my $part; + if ($name=~/^parameter_(.*)_/) { + $part=$1; + } else { + $part=0; + } + $name=~s/^.*_([^_]*)$/$1/; my $newparam= &Apache::lonnet::escape($token->[2]->{'type'}).':'. - &Apache::lonnet::escape($part.'.'. - $token->[2]->{'name'}).'='. + &Apache::lonnet::escape($part.'.'.$name).'='. &Apache::lonnet::escape($token->[2]->{'value'}); if (defined($hash{'param_'.$referid})) { $hash{'param_'.$referid}.='&'.$newparam; } else { $hash{'param_'.$referid}=''.$newparam; } - if ($token->[2]->{'name'} eq 'parameter_mapalias') { + if ($token->[2]->{'name'}=~/^parameter_(0_)*mapalias$/) { $hash{'mapalias_'.$token->[2]->{'value'}}=$referid; } - if ($token->[2]->{'name'} eq 'parameter_randompick') { + if ($token->[2]->{'name'}=~/^parameter_(0_)*randompick$/) { $randompick{$referid}=$token->[2]->{'value'}; } - if ($token->[2]->{'name'} eq 'parameter_randompickseed') { + if ($token->[2]->{'name'}=~/^parameter_(0_)*randompickseed$/) { $randompick{$referid}=$token->[2]->{'value'}; } + if ($token->[2]->{'name'}=~/^parameter_(0_)*encrypturl$/) { + if ($token->[2]->{'value'}=~/^yes$/i) { + $encurl{$referid}=1; + } + } + if ($token->[2]->{'name'}=~/^parameter_(0_)*hiddenresource$/) { + if ($token->[2]->{'value'}=~/^yes$/i) { + $hiddenurl{$referid}=1; + } + } } } @@ -322,19 +331,20 @@ sub simplify { # -------------------------------------------------------- Build condition hash sub traceroute { - my ($sofar,$rid,$beenhere)=@_; - $sofar=simplify($sofar); + my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; + my $newsofar=$sofar=simplify($sofar); unless ($beenhere=~/\&$rid\&/) { $beenhere.=$rid.'&'; + my ($mapid,$resid)=split(/\./,$rid); + my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid}); + my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb); + if ($hdnflag || lc($hidden) eq 'yes') { $hiddenurl{$rid}=1; } + my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); + if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } if (($retfurl eq '') && ($hash{'src_'.$rid}) - && ($hash{'src_'.$rid}!~/\.sequence$/)) { - my ($mapid,$resid)=split(/\./,$rid); - $retfurl=$hash{'src_'.$rid}. - (($hash{'src_'.$rid}=~/\?/)?'&':'?').'symb='. - &Apache::lonnet::symbclean( - &Apache::lonnet::declutter($hash{'map_id_'.$mapid}). - '___'.$resid.'___'. - &Apache::lonnet::declutter($hash{'src_'.$rid})); + && ($hash{'src_'.$rid}!~/\.sequence$/)) { + $retfurl=$hash{'src_'.$rid}.(($hash{'src_'.$rid}=~/\?/)?'&':'?'). + 'symb='.$symb; } if (defined($hash{'conditions_'.$rid})) { $hash{'conditions_'.$rid}=simplify( @@ -342,13 +352,14 @@ sub traceroute { } else { $hash{'conditions_'.$rid}=$sofar; } + $newsofar=$hash{'conditions_'.$rid}; if (defined($hash{'is_map_'.$rid})) { if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { - &traceroute($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},'&'); - if (defined($hash{'map_finish_'.$hash{'src_'.$rid}})) { - $sofar= - $hash{'conditions_'.$hash{'map_finish_'.$hash{'src_'.$rid}}}; - } + $sofar=$newsofar= + &traceroute($sofar, + $hash{'map_start_'.$hash{'src_'.$rid}},'&', + $encflag || $encurl{$rid}, + $hdnflag || $hiddenurl{$rid}); } } if (defined($hash{'to_'.$rid})) { @@ -363,10 +374,12 @@ sub traceroute { .$hash{'undercond_'.$_}.'. '; } } - &traceroute($further,$hash{'goesto_'.$_},$beenhere); + $newsofar=&traceroute($further,$hash{'goesto_'.$_},$beenhere, + $encflag,$hdnflag); } } } + return $newsofar; } # ------------------------------ Cascading conditions, quick access, parameters @@ -432,9 +445,9 @@ sub accinit { /(\&\Q$urifile\E\:[^\&]*)/) { my $replace=$1; my $regexp=$replace; - $regexp=~s/\|/\\\|/g; + #$regexp=~s/\|/\\\|/g; $acchash{'acc.res.'.$short.'.'.$uripath} - =~s/$regexp/$replace\|$uricond/; + =~s/\Q$regexp\E/$replace\|$uricond/; } else { $acchash{'acc.res.'.$short.'.'.$uripath}.= $urifile.':'.$uricond.'&'; @@ -451,15 +464,12 @@ sub accinit { my $courseuri=$uri; $courseuri=~s/^\/res\///; &Apache::lonnet::delenv('(acc\.|httpref\.)'); - &Apache::lonnet::appenv(%acchash, - "request.course.id" => $short, - "request.course.fn" => $fn, - "request.course.uri" => $courseuri); + &Apache::lonnet::appenv(%acchash); } -# ------------------------------------- Selectively delete from randompick maps +# ---------------- Selectively delete from randompick maps and hidden url parms -sub pickrandom { +sub hiddenurls { my $randomoutentry=''; foreach my $rid (keys %randompick) { my $rndpick=$randompick{$rid}; @@ -501,6 +511,18 @@ sub pickrandom { } } } +# ------------------------------ take care of explicitly hidden urls or folders + foreach my $rid (keys %hiddenurl) { + $hash{'randomout_'.$rid}=1; + my ($mapid,$resid)=split(/\./,$rid); + $randomoutentry.='&'. + &Apache::lonnet::symbclean( + &Apache::lonnet::declutter($hash{'map_id_'.$mapid}). + '___'.$resid.'___'. + &Apache::lonnet::declutter($hash{'src_'.$rid}) + ).'&'; + } +# --------------------------------------- append randomout entry to environment if ($randomoutentry) { &Apache::lonnet::appenv('acc.randomout' => $randomoutentry); } @@ -526,6 +548,8 @@ sub readmap { unlink($fn.'.state'); unlink($fn.'parms.db'); undef %randompick; + undef %hiddenurl; + undef %encurl; $retfurl=''; if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { @@ -541,9 +565,12 @@ sub readmap { $hash{'is_map_0.0'}=1; loadmap($uri); if (defined($hash{'map_start_'.$uri})) { + &Apache::lonnet::appenv("request.course.id" => $short, + "request.course.fn" => $fn, + "request.course.uri" => $uri); &traceroute('0',$hash{'map_start_'.$uri},'&'); &accinit($uri,$short,$fn); - &pickrandom(); + &hiddenurls(); } # ------------------------------------------------------- Put versions into src foreach (keys %hash) { @@ -551,10 +578,18 @@ sub readmap { $hash{$_}=&putinversion($hash{$_}); } } +# ---------------------------------------------------------------- Encrypt URLs + foreach (keys %encurl) { +# $hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_}); + $hash{'encrypted_'.$_}=1; + } +# ----------------------------------------------- Close hashes to finally store +# --------------------------------- Routine must pass this point, no early outs unless ((untie(%hash)) && (untie(%parmhash))) { &Apache::lonnet::logthis("WARNING: ". "Could not untie coursemap $fn for $uri."); } +# ---------------------------------------------------- Store away initial state { my $cfh; if ($cfh=Apache::File->new(">$fn.state")) { @@ -584,39 +619,37 @@ sub readmap { # ------------------------------------------------------- Evaluate state string sub evalstate { - my $fn=$ENV{'request.course.fn'}.'.state'; - my $state='2'; + my $state=''; if (-e $fn) { - my @conditions=(); - { - my $fh=Apache::File->new($fn); - @conditions=<$fh>; - } - my $safeeval = new Safe; - my $safehole = new Safe::Hole; - $safeeval->permit("entereval"); - $safeeval->permit(":base_math"); - $safeeval->deny(":base_io"); - $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); - foreach (@conditions) { - my $line=$_; - chomp($line); - my ($condition,$weight)=split(/\:/,$_); - if ($safeeval->reval($condition)) { - if ($weight eq 'force') { - $state.='3'; - } else { - $state.='2'; - } - } else { - if ($weight eq 'stop') { - $state.='0'; - } else { - $state.='1'; - } - } - } + my @conditions=(); + { + my $fh=Apache::File->new($fn); + @conditions=<$fh>; + } + my $safeeval = new Safe; + my $safehole = new Safe::Hole; + $safeeval->permit("entereval"); + $safeeval->permit(":base_math"); + $safeeval->deny(":base_io"); + $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); + foreach my $line (@conditions) { + chomp($line); + my ($condition,$weight)=split(/\:/,$line); + if ($safeeval->reval($condition)) { + if ($weight eq 'force') { + $state.='3'; + } else { + $state.='2'; + } + } else { + if ($weight eq 'stop') { + $state.='0'; + } else { + $state.='1'; + } + } + } } &Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); return $state;