version 1.58, 2003/04/30 21:13:57
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version 1.81, 2004/10/26 23:00:11
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# |
# |
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# (Server for RAT Maps |
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# |
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# (Edit Handler for RAT Maps |
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# (TeX Content Handler |
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# |
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# YEAR=2000 |
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# 05/29/00,05/30 Gerd Kortemeyer) |
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# 7/1 Gerd Kortemeyer) |
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# 7/1,7/3,7/4,7/7,7/8,7/10 Gerd Kortemeyer) |
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# |
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# 7/15,7/17,7/18,8/1,8/2,8/4,8/5,8/21,8/22,8/23,8/30, |
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# 9/2,9/4,9/29,9/30,10/2,10/11,10/30,10/31, |
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# 11/1,11/2,11/14,11/16,11/22,12/28, |
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# YEAR=2001 |
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# 07/05/01,08/30,08/31 Gerd Kortemeyer |
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# |
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### |
### |
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package Apache::lonuserstate; |
package Apache::lonuserstate; |
Line 57 use Apache::lonmsg;
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Line 41 use Apache::lonmsg;
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use Safe; |
use Safe; |
use Safe::Hole; |
use Safe::Hole; |
use Opcode; |
use Opcode; |
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use Apache::lonenc; |
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# ---------------------------------------------------- Globals for this package |
# ---------------------------------------------------- Globals for this package |
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Line 68 my $errtext; # variable with all errors
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Line 53 my $errtext; # variable with all errors
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my $retfurl; # variable with the very first URL in the course |
my $retfurl; # variable with the very first URL in the course |
my %randompick; # randomly picked resources |
my %randompick; # randomly picked resources |
my %randompickseed; # optional seed for randomly picking resources |
my %randompickseed; # optional seed for randomly picking resources |
my %actualversion; # version of resource as loaded now |
my %encurl; # URLs in this folder are supposed to be encrypted |
my %setversion; # forced version of resource |
my %hiddenurl; # this URL (or complete folder) is supposed to be hidden |
my %lastversion; # version when CC came in last |
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my $versionmode; # how versioning is handled in this course |
# ----------------------------------- Remove version from URL and store in hash |
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sub versiontrack { |
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my $uri=shift; |
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if ($uri=~/\.(\d+)\.\w+$/) { |
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my $version=$1; |
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$uri=~s/\.\d+\.(\w+)$/\.$1/; |
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unless ($hash{'version_'.$uri}) { |
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$hash{'version_'.$uri}=$version; |
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} |
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} |
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return $uri; |
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} |
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# -------------------------------------------------------------- Put in version |
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sub putinversion { |
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my $uri=shift; |
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if ($hash{'version_'.$uri}) { |
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my $version=$hash{'version_'.$uri}; |
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if ($version eq 'mostrecent') { return $uri; } |
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if ($version eq &Apache::lonnet::getversion( |
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&Apache::lonnet::filelocation('',$uri))) |
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{ return $uri; } |
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$uri=~s/\.(\w+)$/\.$version\.$1/; |
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} |
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return $uri; |
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} |
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# ----------------------------------------- Processing versions file for course |
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sub processversionfile { |
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my %cenv=@_; |
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my %versions=&Apache::lonnet::dump('resourceversions', |
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$cenv{'domain'}, |
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$cenv{'num'}); |
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foreach (keys %versions) { |
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if ($_=~/^error\:/) { return; } |
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$hash{'version_'.$_}=$versions{$_}; |
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} |
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} |
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# --------------------------------------------------------- Loads map from disk |
# --------------------------------------------------------- Loads map from disk |
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Line 85 sub loadmap {
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Line 110 sub loadmap {
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$hash{'map_id_'.$lpc}=$uri; |
$hash{'map_id_'.$lpc}=$uri; |
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# Determine and check filename |
# Determine and check filename |
my $fn=&Apache::lonnet::filelocation('',$uri); |
my $fn=&Apache::lonnet::filelocation('',&putinversion($uri)); |
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my $ispage=($fn=~/\.page$/); |
my $ispage=($fn=~/\.page$/); |
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Line 119 sub loadmap {
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Line 144 sub loadmap {
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$hash{'kind_'.$rid}='res'; |
$hash{'kind_'.$rid}='res'; |
$hash{'title_'.$rid}=$token->[2]->{'title'}; |
$hash{'title_'.$rid}=$token->[2]->{'title'}; |
my $turi=$token->[2]->{'src'}; |
my $turi=&versiontrack($token->[2]->{'src'}); |
$Apache::lonnet::titlecache{ |
if ($token->[2]->{'version'}) { |
&Apache::lonnet::symbclean( |
unless ($hash{'version_'.$turi}) { |
&Apache::lonnet::declutter($uri).'___'. |
$hash{'version_'.$turi}=$1; |
$token->[2]->{'id'}.'___'. |
} |
&Apache::lonnet::declutter($turi))}= |
} |
$token->[2]->{'title'}; |
&Apache::lonnet::do_cache(\%Apache::lonnet::titlecache, |
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&Apache::lonnet::encode_symb($uri,$token->[2]->{'id'}, |
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$turi), |
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$token->[2]->{'title'},'title'); |
unless ($ispage) { |
unless ($ispage) { |
$turi=~/\.(\w+)$/; |
$turi=~/\.(\w+)$/; |
my $embstyle=&Apache::loncommon::fileembstyle($1); |
my $embstyle=&Apache::loncommon::fileembstyle($1); |
if ($token->[2]->{'external'} eq 'true') { # external |
if ($token->[2]->{'external'} eq 'true') { # external |
$turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//; |
$turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//; |
} elsif ($turi=~/^\/*uploaded\//) { # uploaded |
} elsif ($turi=~/^\/*uploaded\//) { # uploaded |
if (($embstyle eq 'img') || ($embstyle eq 'emb') |
if (($embstyle eq 'img') || ($embstyle eq 'emb')) { |
|| ($embstyle eq 'ssi')) { |
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$turi='/adm/wrapper'.$turi; |
$turi='/adm/wrapper'.$turi; |
} elsif ($turi!~/\.(sequence|page)$/) { |
} elsif ($embstyle eq 'ssi') { |
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#do nothing with these |
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} elsif ($turi!~/\.(sequence|page)$/) { |
$turi='/adm/coursedocs/showdoc'.$turi; |
$turi='/adm/coursedocs/showdoc'.$turi; |
} |
} |
} else { # normal internal resource |
} elsif ($turi=~/\S/) { # normal non-empty internal resource |
if (($embstyle eq 'img') || ($embstyle eq 'emb')) { |
my $mapdir=$uri; |
$turi='/adm/wrapper'.$turi; |
$mapdir=~s/[^\/]+$//; |
} |
$turi=&Apache::lonnet::hreflocation($mapdir,$turi); |
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if (($embstyle eq 'img') || ($embstyle eq 'emb')) { |
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$turi='/adm/wrapper'.$turi; |
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} |
} |
} |
} |
} |
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# Store reverse lookup, remove query string |
if (defined($hash{'ids_'.$turi})) { |
my $idsuri=$turi; |
$hash{'ids_'.$turi}.=','.$rid; |
$idsuri=~s/\?.+$//; |
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if (defined($hash{'ids_'.$idsuri})) { |
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$hash{'ids_'.$idsuri}.=','.$rid; |
} else { |
} else { |
$hash{'ids_'.$turi}=''.$rid; |
$hash{'ids_'.$idsuri}=''.$rid; |
} |
} |
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if |
if |
Line 227 sub loadmap {
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Line 261 sub loadmap {
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# ------------------------------------------------------------------- Parameter |
# ------------------------------------------------------------------- Parameter |
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my $referid=$lpc.'.'.$token->[2]->{'to'}; |
my $referid=$lpc.'.'.$token->[2]->{'to'}; |
my $part=$token->[2]->{'part'}; |
my $name=$token->[2]->{'name'}; |
unless ($part) { $part=0; } |
my $part; |
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if ($name=~/^parameter_(.*)_/) { |
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$part=$1; |
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} else { |
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$part=0; |
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} |
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$name=~s/^.*_([^_]*)$/$1/; |
my $newparam= |
my $newparam= |
&Apache::lonnet::escape($token->[2]->{'type'}).':'. |
&Apache::lonnet::escape($token->[2]->{'type'}).':'. |
&Apache::lonnet::escape($part.'.'. |
&Apache::lonnet::escape($part.'.'.$name).'='. |
$token->[2]->{'name'}).'='. |
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&Apache::lonnet::escape($token->[2]->{'value'}); |
&Apache::lonnet::escape($token->[2]->{'value'}); |
if (defined($hash{'param_'.$referid})) { |
if (defined($hash{'param_'.$referid})) { |
$hash{'param_'.$referid}.='&'.$newparam; |
$hash{'param_'.$referid}.='&'.$newparam; |
} else { |
} else { |
$hash{'param_'.$referid}=''.$newparam; |
$hash{'param_'.$referid}=''.$newparam; |
} |
} |
if ($token->[2]->{'name'} eq 'parameter_mapalias') { |
if ($token->[2]->{'name'}=~/^parameter_(0_)*mapalias$/) { |
$hash{'mapalias_'.$token->[2]->{'value'}}=$referid; |
$hash{'mapalias_'.$token->[2]->{'value'}}=$referid; |
} |
} |
if ($token->[2]->{'name'} eq 'parameter_randompick') { |
if ($token->[2]->{'name'}=~/^parameter_(0_)*randompick$/) { |
$randompick{$referid}=$token->[2]->{'value'}; |
$randompick{$referid}=$token->[2]->{'value'}; |
} |
} |
if ($token->[2]->{'name'} eq 'parameter_randompickseed') { |
if ($token->[2]->{'name'}=~/^parameter_(0_)*randompickseed$/) { |
$randompick{$referid}=$token->[2]->{'value'}; |
$randompick{$referid}=$token->[2]->{'value'}; |
} |
} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*encrypturl$/) { |
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if ($token->[2]->{'value'}=~/^yes$/i) { |
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$encurl{$referid}=1; |
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} |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*hiddenresource$/) { |
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if ($token->[2]->{'value'}=~/^yes$/i) { |
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$hiddenurl{$referid}=1; |
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} |
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} |
} |
} |
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} |
} |
Line 282 sub simplify {
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Line 331 sub simplify {
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# -------------------------------------------------------- Build condition hash |
# -------------------------------------------------------- Build condition hash |
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sub traceroute { |
sub traceroute { |
my ($sofar,$rid,$beenhere)=@_; |
my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; |
$sofar=simplify($sofar); |
my $newsofar=$sofar=simplify($sofar); |
unless ($beenhere=~/\&$rid\&/) { |
unless ($beenhere=~/\&$rid\&/) { |
$beenhere.=$rid.'&'; |
$beenhere.=$rid.'&'; |
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my ($mapid,$resid)=split(/\./,$rid); |
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my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid}); |
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my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb); |
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if ($hdnflag || lc($hidden) eq 'yes') { $hiddenurl{$rid}=1; } |
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my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); |
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if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
&& ($hash{'src_'.$rid}!~/\.sequence$/)) { |
&& ($hash{'src_'.$rid}!~/\.sequence$/)) { |
my ($mapid,$resid)=split(/\./,$rid); |
$retfurl=$hash{'src_'.$rid}.(($hash{'src_'.$rid}=~/\?/)?'&':'?'). |
$retfurl=$hash{'src_'.$rid}. |
'symb='.$symb; |
(($hash{'src_'.$rid}=~/\?/)?'&':'?').'symb='. |
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&Apache::lonnet::symbclean( |
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&Apache::lonnet::declutter($hash{'map_id_'.$mapid}). |
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'___'.$resid.'___'. |
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&Apache::lonnet::declutter($hash{'src_'.$rid})); |
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} |
} |
if (defined($hash{'conditions_'.$rid})) { |
if (defined($hash{'conditions_'.$rid})) { |
$hash{'conditions_'.$rid}=simplify( |
$hash{'conditions_'.$rid}=simplify( |
Line 302 sub traceroute {
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Line 352 sub traceroute {
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} else { |
} else { |
$hash{'conditions_'.$rid}=$sofar; |
$hash{'conditions_'.$rid}=$sofar; |
} |
} |
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$newsofar=$hash{'conditions_'.$rid}; |
if (defined($hash{'is_map_'.$rid})) { |
if (defined($hash{'is_map_'.$rid})) { |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
&traceroute($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},'&'); |
$sofar=$newsofar= |
if (defined($hash{'map_finish_'.$hash{'src_'.$rid}})) { |
&traceroute($sofar, |
$sofar= |
$hash{'map_start_'.$hash{'src_'.$rid}},'&', |
$hash{'conditions_'.$hash{'map_finish_'.$hash{'src_'.$rid}}}; |
$encflag || $encurl{$rid}, |
} |
$hdnflag || $hiddenurl{$rid}); |
} |
} |
} |
} |
if (defined($hash{'to_'.$rid})) { |
if (defined($hash{'to_'.$rid})) { |
Line 323 sub traceroute {
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Line 374 sub traceroute {
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.$hash{'undercond_'.$_}.'. '; |
.$hash{'undercond_'.$_}.'. '; |
} |
} |
} |
} |
&traceroute($further,$hash{'goesto_'.$_},$beenhere); |
$newsofar=&traceroute($further,$hash{'goesto_'.$_},$beenhere, |
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$encflag,$hdnflag); |
} |
} |
} |
} |
} |
} |
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return $newsofar; |
} |
} |
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# ------------------------------ Cascading conditions, quick access, parameters |
# ------------------------------ Cascading conditions, quick access, parameters |
Line 392 sub accinit {
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Line 445 sub accinit {
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/(\&\Q$urifile\E\:[^\&]*)/) { |
/(\&\Q$urifile\E\:[^\&]*)/) { |
my $replace=$1; |
my $replace=$1; |
my $regexp=$replace; |
my $regexp=$replace; |
$regexp=~s/\|/\\\|/g; |
#$regexp=~s/\|/\\\|/g; |
$acchash{'acc.res.'.$short.'.'.$uripath} |
$acchash{'acc.res.'.$short.'.'.$uripath} |
=~s/$regexp/$replace\|$uricond/; |
=~s/\Q$regexp\E/$replace\|$uricond/; |
} else { |
} else { |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
$urifile.':'.$uricond.'&'; |
$urifile.':'.$uricond.'&'; |
Line 411 sub accinit {
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Line 464 sub accinit {
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my $courseuri=$uri; |
my $courseuri=$uri; |
$courseuri=~s/^\/res\///; |
$courseuri=~s/^\/res\///; |
&Apache::lonnet::delenv('(acc\.|httpref\.)'); |
&Apache::lonnet::delenv('(acc\.|httpref\.)'); |
&Apache::lonnet::appenv(%acchash, |
&Apache::lonnet::appenv(%acchash); |
"request.course.id" => $short, |
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"request.course.fn" => $fn, |
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"request.course.uri" => $courseuri); |
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} |
} |
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# ------------------------------------- Selectively delete from randompick maps |
# ---------------- Selectively delete from randompick maps and hidden url parms |
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sub pickrandom { |
sub hiddenurls { |
my $randomoutentry=''; |
my $randomoutentry=''; |
foreach my $rid (keys %randompick) { |
foreach my $rid (keys %randompick) { |
my $rndpick=$randompick{$rid}; |
my $rndpick=$randompick{$rid}; |
Line 461 sub pickrandom {
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Line 511 sub pickrandom {
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} |
} |
} |
} |
} |
} |
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# ------------------------------ take care of explicitly hidden urls or folders |
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foreach my $rid (keys %hiddenurl) { |
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$hash{'randomout_'.$rid}=1; |
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my ($mapid,$resid)=split(/\./,$rid); |
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$randomoutentry.='&'. |
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&Apache::lonnet::symbclean( |
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&Apache::lonnet::declutter($hash{'map_id_'.$mapid}). |
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'___'.$resid.'___'. |
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&Apache::lonnet::declutter($hash{'src_'.$rid}) |
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).'&'; |
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} |
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# --------------------------------------- append randomout entry to environment |
if ($randomoutentry) { |
if ($randomoutentry) { |
&Apache::lonnet::appenv('acc.randomout' => $randomoutentry); |
&Apache::lonnet::appenv('acc.randomout' => $randomoutentry); |
} |
} |
Line 486 sub readmap {
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Line 548 sub readmap {
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unlink($fn.'.state'); |
unlink($fn.'.state'); |
unlink($fn.'parms.db'); |
unlink($fn.'parms.db'); |
undef %randompick; |
undef %randompick; |
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undef %hiddenurl; |
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undef %encurl; |
$retfurl=''; |
$retfurl=''; |
if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
(tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { |
(tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { |
Line 493 sub readmap {
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Line 557 sub readmap {
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%parmhash=(); |
%parmhash=(); |
$errtext=''; |
$errtext=''; |
$pc=0; |
$pc=0; |
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&processversionfile(%cenv); |
my $furi=&Apache::lonnet::clutter($uri); |
my $furi=&Apache::lonnet::clutter($uri); |
$hash{'src_0.0'}=$furi; |
$hash{'src_0.0'}=&versiontrack($furi); |
$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
$hash{'ids_'.$furi}='0.0'; |
$hash{'ids_'.$furi}='0.0'; |
$hash{'is_map_0.0'}=1; |
$hash{'is_map_0.0'}=1; |
loadmap($uri); |
loadmap($uri); |
if (defined($hash{'map_start_'.$uri})) { |
if (defined($hash{'map_start_'.$uri})) { |
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&Apache::lonnet::appenv("request.course.id" => $short, |
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"request.course.fn" => $fn, |
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"request.course.uri" => $uri); |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
&accinit($uri,$short,$fn); |
&accinit($uri,$short,$fn); |
&pickrandom(); |
&hiddenurls(); |
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} |
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# ------------------------------------------------------- Put versions into src |
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foreach (keys %hash) { |
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if ($_=~/^src\_/) { |
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$hash{$_}=&putinversion($hash{$_}); |
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} |
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} |
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# ---------------------------------------------------------------- Encrypt URLs |
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foreach (keys %encurl) { |
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$hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_}); |
} |
} |
# ------------------------------------------------------------ Version tracking |
# ----------------------------------------------- Close hashes to finally store |
# if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) { |
# --------------------------------- Routine must pass this point, no early outs |
# &Apache::lonnet::logthis('Will be version tracking'); |
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# } |
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unless ((untie(%hash)) && (untie(%parmhash))) { |
unless ((untie(%hash)) && (untie(%parmhash))) { |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
"Could not untie coursemap $fn for $uri.</font>"); |
"Could not untie coursemap $fn for $uri.</font>"); |
} |
} |
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# ---------------------------------------------------- Store away initial state |
{ |
{ |
my $cfh; |
my $cfh; |
if ($cfh=Apache::File->new(">$fn.state")) { |
if ($cfh=Apache::File->new(">$fn.state")) { |
Line 541 sub readmap {
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Line 618 sub readmap {
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# ------------------------------------------------------- Evaluate state string |
# ------------------------------------------------------- Evaluate state string |
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sub evalstate { |
sub evalstate { |
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my $fn=$ENV{'request.course.fn'}.'.state'; |
my $fn=$ENV{'request.course.fn'}.'.state'; |
my $state='2'; |
my $state=''; |
if (-e $fn) { |
if (-e $fn) { |
my @conditions=(); |
my @conditions=(); |
{ |
{ |
my $fh=Apache::File->new($fn); |
my $fh=Apache::File->new($fn); |
@conditions=<$fh>; |
@conditions=<$fh>; |
} |
} |
my $safeeval = new Safe; |
my $safeeval = new Safe; |
my $safehole = new Safe::Hole; |
my $safehole = new Safe::Hole; |
$safeeval->permit("entereval"); |
$safeeval->permit("entereval"); |
$safeeval->permit(":base_math"); |
$safeeval->permit(":base_math"); |
$safeeval->deny(":base_io"); |
$safeeval->deny(":base_io"); |
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
foreach (@conditions) { |
foreach my $line (@conditions) { |
my $line=$_; |
chomp($line); |
chomp($line); |
my ($condition,$weight)=split(/\:/,$line); |
my ($condition,$weight)=split(/\:/,$_); |
if ($safeeval->reval($condition)) { |
if ($safeeval->reval($condition)) { |
if ($weight eq 'force') { |
if ($weight eq 'force') { |
$state.='3'; |
$state.='3'; |
} else { |
} else { |
$state.='2'; |
$state.='2'; |
} |
} |
} else { |
} else { |
if ($weight eq 'stop') { |
if ($weight eq 'stop') { |
$state.='0'; |
$state.='0'; |
} else { |
} else { |
$state.='1'; |
$state.='1'; |
} |
} |
} |
} |
} |
} |
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} |
} |
&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
return $state; |
return $state; |