version 1.24, 2001/08/31 14:19:06
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version 1.41, 2002/09/04 19:37:32
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Construct and maintain state and binary representation of course for user |
# Construct and maintain state and binary representation of course for user |
# |
# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
# (Server for RAT Maps |
# (Server for RAT Maps |
# |
# |
# (Edit Handler for RAT Maps |
# (Edit Handler for RAT Maps |
# (TeX Content Handler |
# (TeX Content Handler |
# |
# |
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# YEAR=2000 |
# 05/29/00,05/30 Gerd Kortemeyer) |
# 05/29/00,05/30 Gerd Kortemeyer) |
# 7/1 Gerd Kortemeyer) |
# 7/1 Gerd Kortemeyer) |
# 7/1,7/3,7/4,7/7,7/8,7/10 Gerd Kortemeyer) |
# 7/1,7/3,7/4,7/7,7/8,7/10 Gerd Kortemeyer) |
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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, |
# 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, |
# 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, |
# 11/1,11/2,11/14,11/16,11/22,12/28, |
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# YEAR=2001 |
# 07/05/01,08/30,08/31 Gerd Kortemeyer |
# 07/05/01,08/30,08/31 Gerd Kortemeyer |
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# 12/16 Scott Harrison |
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# |
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### |
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package Apache::lonuserstate; |
package Apache::lonuserstate; |
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# ------------------------------------------------- modules used by this module |
use strict; |
use strict; |
use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
use Apache::File; |
use Apache::File; |
use HTML::TokeParser; |
use HTML::TokeParser; |
use Apache::lonnet(); |
use Apache::lonnet(); |
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use Apache::loncommon(); |
use GDBM_File; |
use GDBM_File; |
use Apache::lonmsg; |
use Apache::lonmsg; |
use Safe; |
use Safe; |
Line 36 my %parmhash;# The hash with the paramet
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Line 67 my %parmhash;# The hash with the paramet
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my @cond; # Array with all of the conditions |
my @cond; # Array with all of the conditions |
my $errtext; # variable with all errors |
my $errtext; # variable with all errors |
my $retfurl; # variable with the very first URL in the course |
my $retfurl; # variable with the very first URL in the course |
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my %randompick; # randomly picked resources |
# --------------------------------------------------------- Loads map from disk |
# --------------------------------------------------------- Loads map from disk |
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sub loadmap { |
sub loadmap { |
Line 48 sub loadmap {
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Line 79 sub loadmap {
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$hash{'map_pc_'.$uri}=$lpc; |
$hash{'map_pc_'.$uri}=$lpc; |
$hash{'map_id_'.$lpc}=$uri; |
$hash{'map_id_'.$lpc}=$uri; |
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my $fn='/home/httpd/html'.$uri; |
# Determine and check filename |
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my $fn=&Apache::lonnet::filelocation('',$uri); |
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my $ispage=($fn=~/\.page$/); |
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unless (($fn=~/\.sequence$/) || |
unless (($fn=~/\.sequence$/) || |
($fn=~/\.page$/)) { |
($fn=~/\.page$/)) { |
Line 56 sub loadmap {
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Line 90 sub loadmap {
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return OK; |
return OK; |
} |
} |
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my $ispage=($fn=~/\.page$/); |
my $instr=&Apache::lonnet::getfile($fn); |
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unless (-e $fn) { |
unless ($instr == -1) { |
my $returned=Apache::lonnet::repcopy($fn); |
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unless ($returned eq OK) { |
# Successfully got file, parse it |
$errtext.="Could not import: $fn - "; |
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if ($returned eq HTTP_SERVICE_UNAVAILABLE) { |
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$errtext.="Server unavailable\n"; |
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} |
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if ($returned eq HTTP_NOT_FOUND) { |
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$errtext.="File not found\n"; |
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} |
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if ($returned eq FORBIDDEN) { |
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$errtext.="Access forbidden\n"; |
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} |
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return OK; |
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} |
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} |
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if (-e $fn) { |
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my @content; |
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{ |
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my $fh=Apache::File->new($fn); |
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@content=<$fh>; |
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} |
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my $instr=join('',@content); |
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my $parser = HTML::TokeParser->new(\$instr); |
my $parser = HTML::TokeParser->new(\$instr); |
my $token; |
my $token; |
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Line 103 sub loadmap {
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Line 117 sub loadmap {
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my $turi=$token->[2]->{'src'}; |
my $turi=$token->[2]->{'src'}; |
unless ($ispage) { |
unless ($ispage) { |
$turi=~/\.(\w+)$/; |
$turi=~/\.(\w+)$/; |
my $embstyle=&Apache::lonnet::fileembstyle($1); |
my $embstyle=&Apache::loncommon::fileembstyle($1); |
if ($token->[2]->{'external'} eq 'true') { |
if ($token->[2]->{'external'} eq 'true') { # external |
$turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//; |
$turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//; |
} else { |
} elsif ($turi=~/^\/*uploaded\//) { # uploaded |
my $embstyle=&Apache::lonnet::fileembstyle($1); |
if (($embstyle eq 'img') || ($embstyle eq 'emb') |
if (($embstyle eq 'img') || ($embstyle eq 'emb')) { |
|| ($embstyle eq 'ssi')) { |
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$turi='/adm/wrapper'.$turi; |
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} elsif ($turi!~/\.(sequence|page)$/) { |
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$turi='/adm/coursedocs?showdoc='.$turi; |
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} |
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} else { # normal internal resource |
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if (($embstyle eq 'img') || ($embstyle eq 'emb') |
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|| ($turi=~/\/syllabus$/) || ($turi=~/\/aboutme$/) |
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|| ($turi=~/\/navmaps$/)) { |
$turi='/adm/wrapper'.$turi; |
$turi='/adm/wrapper'.$turi; |
} |
} |
} |
} |
Line 202 sub loadmap {
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Line 224 sub loadmap {
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} else { |
} else { |
$hash{'param_'.$referid}=''.$newparam; |
$hash{'param_'.$referid}=''.$newparam; |
} |
} |
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if ($token->[2]->{'name'} eq 'parameter_mapalias') { |
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$hash{'mapalias_'.$token->[2]->{'value'}}=$referid; |
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} |
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if ($token->[2]->{'name'} eq 'parameter_randompick') { |
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$randompick{$referid}=$token->[2]->{'value'}; |
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} |
} |
} |
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} |
} |
Line 241 sub traceroute {
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Line 268 sub traceroute {
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$sofar=simplify($sofar); |
$sofar=simplify($sofar); |
unless ($beenhere=~/\&$rid\&/) { |
unless ($beenhere=~/\&$rid\&/) { |
$beenhere.=$rid.'&'; |
$beenhere.=$rid.'&'; |
if ($retfurl eq '') { |
if (($retfurl eq '') && ($hash{'src_'.$rid})) { |
$retfurl=$hash{'src_'.$rid}; |
my ($mapid,$resid)=split(/\./,$rid); |
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$retfurl=$hash{'src_'.$rid}. |
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(($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})); |
} |
} |
if (defined($hash{'conditions_'.$rid})) { |
if (defined($hash{'conditions_'.$rid})) { |
$hash{'conditions_'.$rid}=simplify( |
$hash{'conditions_'.$rid}=simplify( |
Line 260 sub traceroute {
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Line 293 sub traceroute {
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} |
} |
} |
} |
if (defined($hash{'to_'.$rid})) { |
if (defined($hash{'to_'.$rid})) { |
map { |
foreach (split(/\,/,$hash{'to_'.$rid})) { |
my $further=$sofar; |
my $further=$sofar; |
if ($hash{'undercond_'.$_}) { |
if ($hash{'undercond_'.$_}) { |
if (defined($hash{'condid_'.$hash{'undercond_'.$_}})) { |
if (defined($hash{'condid_'.$hash{'undercond_'.$_}})) { |
Line 272 sub traceroute {
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Line 305 sub traceroute {
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} |
} |
} |
} |
&traceroute($further,$hash{'goesto_'.$_},$beenhere); |
&traceroute($further,$hash{'goesto_'.$_},$beenhere); |
} split(/\,/,$hash{'to_'.$rid}); |
} |
} |
} |
} |
} |
} |
} |
Line 285 sub accinit {
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Line 318 sub accinit {
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my %captured=(); |
my %captured=(); |
my $condcounter=0; |
my $condcounter=0; |
$acchash{'acc.cond.'.$short.'.0'}=0; |
$acchash{'acc.cond.'.$short.'.0'}=0; |
map { |
foreach (keys %hash) { |
if ($_=~/^conditions/) { |
if ($_=~/^conditions/) { |
my $expr=$hash{$_}; |
my $expr=$hash{$_}; |
map { |
foreach ($expr=~m/(\(\(\d+(?:\&\d+)+\)(?:\|\(\d+(?:\&\d+)+\))+\))/g) { |
my $sub=$_; |
my $sub=$_; |
my $orig=$_; |
my $orig=$_; |
$sub=~/\(\((\d+\&(:?\d+\&)*)(?:\d+\&*)+\)(?:\|\(\1(?:\d+\&*)+\))+\)/; |
$sub=~/\(\((\d+\&(:?\d+\&)*)(?:\d+\&*)+\)(?:\|\(\1(?:\d+\&*)+\))+\)/; |
Line 299 sub accinit {
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Line 332 sub accinit {
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$sub=simplify($sub); |
$sub=simplify($sub); |
$orig=~s/(\W)/\\$1/g; |
$orig=~s/(\W)/\\$1/g; |
$expr=~s/$orig/$sub/; |
$expr=~s/$orig/$sub/; |
} ($expr=~m/(\(\(\d+(?:\&\d+)+\)(?:\|\(\d+(?:\&\d+)+\))+\))/g); |
} |
$hash{$_}=$expr; |
$hash{$_}=$expr; |
unless (defined($captured{$expr})) { |
unless (defined($captured{$expr})) { |
$condcounter++; |
$condcounter++; |
Line 309 sub accinit {
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Line 342 sub accinit {
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} elsif ($_=~/^param_(\d+)\.(\d+)/) { |
} elsif ($_=~/^param_(\d+)\.(\d+)/) { |
my $prefix=&Apache::lonnet::declutter($hash{'map_id_'.$1}). |
my $prefix=&Apache::lonnet::declutter($hash{'map_id_'.$1}). |
'___'.$2.'___'.&Apache::lonnet::declutter($hash{'src_'.$1.'.'.$2}); |
'___'.$2.'___'.&Apache::lonnet::declutter($hash{'src_'.$1.'.'.$2}); |
map { |
foreach (split(/\&/,$hash{$_})) { |
my ($typename,$value)=split(/\=/,$_); |
my ($typename,$value)=split(/\=/,$_); |
my ($type,$name)=split(/\:/,$typename); |
my ($type,$name)=split(/\:/,$typename); |
$parmhash{$prefix.'.'.&Apache::lonnet::unescape($name)}= |
$parmhash{$prefix.'.'.&Apache::lonnet::unescape($name)}= |
&Apache::lonnet::unescape($value); |
&Apache::lonnet::unescape($value); |
$parmhash{$prefix.'.'.&Apache::lonnet::unescape($name).'.type'}= |
$parmhash{$prefix.'.'.&Apache::lonnet::unescape($name).'.type'}= |
&Apache::lonnet::unescape($type); |
&Apache::lonnet::unescape($type); |
} split(/\&/,$hash{$_}); |
} |
} |
} |
} keys %hash; |
} |
map { |
foreach (keys %hash) { |
if ($_=~/^ids/) { |
if ($_=~/^ids/) { |
map { |
foreach (split(/\,/,$hash{$_})) { |
my $resid=$_; |
my $resid=$_; |
my $uri=$hash{'src_'.$resid}; |
my $uri=$hash{'src_'.$resid}; |
$uri=~s/^\/adm\/wrapper//; |
$uri=~s/^\/adm\/wrapper//; |
Line 339 sub accinit {
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Line 372 sub accinit {
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if ($acchash{'acc.res.'.$short.'.'.$uripath}=~ |
if ($acchash{'acc.res.'.$short.'.'.$uripath}=~ |
/(\&$urifile\:[^\&]*)/) { |
/(\&$urifile\:[^\&]*)/) { |
my $replace=$1; |
my $replace=$1; |
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my $regexp=$replace; |
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$regexp=~s/\|/\\\|/g; |
$acchash{'acc.res.'.$short.'.'.$uripath} |
$acchash{'acc.res.'.$short.'.'.$uripath} |
=~s/$replace/$replace\|$uricond/; |
=~s/$regexp/$replace\|$uricond/; |
} else { |
} else { |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
$urifile.':'.$uricond.'&'; |
$urifile.':'.$uricond.'&'; |
Line 350 sub accinit {
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Line 385 sub accinit {
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'&'.$urifile.':'.$uricond.'&'; |
'&'.$urifile.':'.$uricond.'&'; |
} |
} |
} |
} |
} split(/\,/,$hash{$_}); |
} |
} |
} |
} keys %hash; |
} |
$acchash{'acc.res.'.$short.'.'}='&:0&'; |
$acchash{'acc.res.'.$short.'.'}='&:0&'; |
my $courseuri=$uri; |
my $courseuri=$uri; |
$courseuri=~s/^\/res\///; |
$courseuri=~s/^\/res\///; |
Line 363 sub accinit {
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Line 398 sub accinit {
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"request.course.uri" => $courseuri); |
"request.course.uri" => $courseuri); |
} |
} |
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# ------------------------------------- Selectively delete from randompick maps |
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sub pickrandom { |
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my $randomoutentry=''; |
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foreach my $rid (keys %randompick) { |
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my $rndpick=$randompick{$rid}; |
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my $mpc=$hash{'map_pc_'.$hash{'src_'.$rid}}; |
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# ------------------------------------------- put existing resources into array |
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my @currentrids=(); |
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foreach (keys %hash) { |
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if ($_=~/^src_($mpc\.\d+)/) { |
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if ($hash{'src_'.$1}) { push @currentrids, $1; } |
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} |
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} |
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next if ($#currentrids<$rndpick); |
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# -------------------------------- randomly eliminate the ones that should stay |
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srand(&Apache::lonnet::rndseed($rid)); # use rid instead of symb |
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for (my $i=1;$i<=$rndpick;$i++) { |
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while (1) { |
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my $randomidx=int(rand($#currentrids+1)); |
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if ($currentrids[$randomidx]) { |
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$currentrids[$randomidx]=''; |
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last; |
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} |
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} |
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} |
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# -------------------------------------------------------- delete the leftovers |
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for (my $k=0; $k<=$#currentrids; $k++) { |
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if ($currentrids[$k]) { |
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$hash{'randomout_'.$currentrids[$k]}=1; |
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my ($mapid,$resid)=split(/\./,$currentrids[$k]); |
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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($hash{'src_'.$currentrids[$k]}) |
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).'&'; |
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} |
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} |
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} |
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if ($randomoutentry) { |
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&Apache::lonnet::appenv('acc.randomout' => $randomoutentry); |
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} |
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} |
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# ---------------------------------------------------- Read map and all submaps |
# ---------------------------------------------------- Read map and all submaps |
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sub readmap { |
sub readmap { |
Line 382 sub readmap {
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Line 462 sub readmap {
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unlink($fn.'_symb.db'); |
unlink($fn.'_symb.db'); |
unlink($fn.'.state'); |
unlink($fn.'.state'); |
unlink($fn.'parms.db'); |
unlink($fn.'parms.db'); |
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undef %randompick; |
$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))) { |
%hash=(); |
%hash=(); |
%parmhash=(); |
%parmhash=(); |
$errtext=''; |
$errtext=''; |
$pc=0; |
$pc=0; |
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my $furi=&Apache::lonnet::clutter($uri); |
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$hash{'src_0.0'}=$furi; |
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$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
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$hash{'ids_'.$furi}='0.0'; |
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$hash{'is_map_0.0'}=1; |
loadmap($uri); |
loadmap($uri); |
if (defined($hash{'map_start_'.$uri})) { |
if (defined($hash{'map_start_'.$uri})) { |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
&accinit($uri,$short,$fn); |
&accinit($uri,$short,$fn); |
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&pickrandom(); |
} |
} |
unless ((untie(%hash)) && (untie(%parmhash))) { |
unless ((untie(%hash)) && (untie(%parmhash))) { |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
Line 433 sub evalstate {
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Line 520 sub evalstate {
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$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'); |
map { |
foreach (@conditions) { |
my $line=$_; |
my $line=$_; |
chomp($line); |
chomp($line); |
my ($condition,$weight)=split(/\:/,$_); |
my ($condition,$weight)=split(/\:/,$_); |
Line 450 sub evalstate {
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Line 537 sub evalstate {
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$state.='1'; |
$state.='1'; |
} |
} |
} |
} |
} @conditions; |
} |
} |
} |
&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
return $state; |
return $state; |
Line 459 sub evalstate {
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Line 546 sub evalstate {
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1; |
1; |
__END__ |
__END__ |
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=head1 NAME |
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Apache::lonuserstate - Construct and maintain state and binary representation |
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of course for user |
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=head1 SYNOPSIS |
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Invoked by lonroles.pm. |
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&Apache::lonuserstate::readmap($cdom.'/'.$cnum); |
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=head1 INTRODUCTION |
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This module constructs and maintains state and binary representation |
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of course for user. |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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=head1 HANDLER SUBROUTINE |
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There is no handler subroutine. |
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=head1 OTHER SUBROUTINES |
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=over 4 |
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=item * |
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loadmap() : Loads map from disk |
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=item * |
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simplify() : Simplify expression |
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=item * |
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traceroute() : Build condition hash |
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=item * |
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accinit() : Cascading conditions, quick access, parameters |
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=item * |
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readmap() : Read map and all submaps |
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=item * |
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evalstate() : Evaluate state string |
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=back |
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=cut |