version 1.4, 2000/08/22 15:26:28
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version 1.16, 2000/11/02 15:53:17
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Line 10
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Line 10
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# 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) |
# |
# |
# 7/15,7/17,7/18,8/1,8/2,8/4,8/5,8/21,8/22 Gerd Kortemeyer |
# 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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# 9/2,9/4,9/29,9/30,10/2,10/11,10/30,10/31,11/1,11/2 Gerd Kortemeyer |
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package Apache::lonuserstate; |
package Apache::lonuserstate; |
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Line 20 use Apache::File;
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Line 21 use Apache::File;
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use HTML::TokeParser; |
use HTML::TokeParser; |
use Apache::lonnet(); |
use Apache::lonnet(); |
use GDBM_File; |
use GDBM_File; |
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use Apache::lonmsg; |
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use Safe; |
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use Opcode; |
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# ---------------------------------------------------- Globals for this package |
# ---------------------------------------------------- Globals for this package |
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Line 41 sub loadmap {
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Line 46 sub loadmap {
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my $fn='/home/httpd/html'.$uri; |
my $fn='/home/httpd/html'.$uri; |
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unless (($fn=~/\.course$/) || |
unless (($fn=~/\.sequence$/) || |
($fn=~/\.sequence$/) || |
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($fn=~/\.page$/)) { |
($fn=~/\.page$/)) { |
$errtext.="Invalid map: $fn\n"; |
$errtext.="Invalid map: $fn\n"; |
return OK; |
return OK; |
Line 116 sub loadmap {
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Line 120 sub loadmap {
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$hash{'type_'.$rid}='normal'; |
$hash{'type_'.$rid}='normal'; |
} |
} |
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if (($turi=~/\.course$/) || |
if (($turi=~/\.sequence$/) || |
($turi=~/\.sequence$/) || |
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($turi=~/\.page$/)) { |
($turi=~/\.page$/)) { |
$hash{'is_map_'.$rid}=1; |
$hash{'is_map_'.$rid}=1; |
&loadmap($turi); |
&loadmap($turi); |
Line 179 sub loadmap {
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Line 182 sub loadmap {
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sub simplify { |
sub simplify { |
my $expression=shift; |
my $expression=shift; |
# "True and" is nothing |
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$expression=~s/0\&//g; |
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# (8)=8 |
# (8)=8 |
$expression=~s/\((\d+)\)/$1/g; |
$expression=~s/\((\d+)\)/$1/g; |
# 8&8=8 |
# 8&8=8 |
$expression=~s/(\d+)\&\1/$1/g; |
$expression=~s/(\D)(\d+)\&\2(\D)/$1$2$3/g; |
# 8|8=8 |
# 8|8=8 |
$expression=~s/(\d+)\|\1/$1/g; |
$expression=~s/(\D)(\d+)\|\2(\D)/$1$2$3/g; |
# (5&3)&4=5&3&4 |
# (5&3)&4=5&3&4 |
$expression=~s/\((\d+)\&(\d+)\)\&(\d+)/$1\&$2\&$3/g; |
$expression=~s/\((\d+)((?:\&\d+)+)\)\&(\d+\D)/$1$2\&$3/g; |
# (((5&3)|(4&6)))=((5&3)|(4&6)) |
# (((5&3)|(4&6)))=((5&3)|(4&6)) |
$expression=~ |
$expression=~ |
s/\((\(\(\d+(?:\&\d+)*\)(?:\|\(\d+(?:\&\d+)*\))+\))\)/$1/g; |
s/\((\(\(\d+(?:\&\d+)*\)(?:\|\(\d+(?:\&\d+)*\))+\))\)/$1/g; |
Line 245 sub accinit {
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Line 246 sub accinit {
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my %acchash=(); |
my %acchash=(); |
my %captured=(); |
my %captured=(); |
my $condcounter=0; |
my $condcounter=0; |
$acchash{'acc.cond.0'}='0'; |
$acchash{'acc.cond.'.$short.'.0'}=0; |
map { |
map { |
if ($_=~/^conditions/) { |
if ($_=~/^conditions/) { |
my $expr=$hash{$_}; |
my $expr=$hash{$_}; |
map { |
map { |
my $sub=$_; |
my $sub=$_; |
my $orig=$_; |
my $orig=$_; |
$sub=~/\(\((\d+(:?\&\d+)*)(?:\&\d+)+\)(?:\|\(\1(?:\&\d+)+\))+\)/; |
$sub=~/\(\((\d+\&(:?\d+\&)*)(?:\d+\&*)+\)(?:\|\(\1(?:\d+\&*)+\))+\)/; |
my $factor=$1; |
my $factor=$1; |
$sub=~s/$factor\&//g; |
$sub=~s/$factor//g; |
$sub=~s/^\(/\($factor\&\(/; |
$sub=~s/^\(/\($factor\(/; |
$sub.=')'; |
$sub.=')'; |
$sub=simplify($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); |
} ($expr=~m/(\(\(\d+(?:\&\d+)+\)(?:\|\(\d+(?:\&\d+)+\))+\))/g); |
$hash{$_}=$expr; |
$hash{$_}=$expr; |
unless (defined($captured{$expr})) { |
unless (defined($captured{$expr})) { |
$condcounter++; |
$condcounter++; |
$captured{$expr}=$condcounter; |
$captured{$expr}=$condcounter; |
$acchash{'acc.cond.'.$condcounter}=$expr; |
$acchash{'acc.cond.'.$short.'.'.$condcounter}=$expr; |
} |
} |
} |
} |
} keys %hash; |
} keys %hash; |
map { |
map { |
if ($_=~/^ids/) { |
if ($_=~/^ids/) { |
my $resid=$hash{$_}; |
map { |
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my $resid=$_; |
my $uri=$hash{'src_'.$resid}; |
my $uri=$hash{'src_'.$resid}; |
my @uriparts=split(/\//,$uri); |
my @uriparts=split(/\//,$uri); |
my $urifile=$uriparts[$#uriparts]; |
my $urifile=$uriparts[$#uriparts]; |
$#uriparts--; |
$#uriparts--; |
my $uripath=join('/',@uriparts); |
my $uripath=join('/',@uriparts); |
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$uripath=~s/^\/res\///; |
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my $uricond='0'; |
if (defined($hash{'conditions_'.$resid})) { |
if (defined($hash{'conditions_'.$resid})) { |
$urifile.=':'.$captured{$hash{'conditions_'.$resid}}; |
$uricond=$captured{$hash{'conditions_'.$resid}}; |
} else { |
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$urifile.=':0'; |
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} |
} |
if (defined($acchash{'acc.res.'.$uripath})) { |
if (defined($acchash{'acc.res.'.$short.'.'.$uripath})) { |
$acchash{'acc.res.'.$uripath}.=$urifile.'&'; |
if ($acchash{'acc.res.'.$short.'.'.$uripath}=~ |
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/(\&$urifile\:[^\&]*)/) { |
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my $replace=$1; |
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$acchash{'acc.res.'.$short.'.'.$uripath} |
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=~s/$replace/$replace\|$uricond/; |
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} else { |
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$acchash{'acc.res.'.$short.'.'.$uripath}.= |
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$urifile.':'.$uricond.'&'; |
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} |
} else { |
} else { |
$acchash{'acc.res.'.$uripath}='&'.$urifile.'&'; |
$acchash{'acc.res.'.$short.'.'.$uripath}= |
} |
'&'.$urifile.':'.$uricond.'&'; |
} |
} |
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} split(/\,/,$hash{$_}); |
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} |
} keys %hash; |
} keys %hash; |
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my $courseuri=$uri; |
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$courseuri=~s/^\/res\///; |
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&Apache::lonnet::delenv('(acc\.|httpref\.)'); |
&Apache::lonnet::appenv(%acchash, |
&Apache::lonnet::appenv(%acchash, |
"request.course" => $short, |
"request.course.id" => $short, |
"request.course.fn" => $fn); |
"request.course.fn" => $fn, |
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"request.course.uri" => $courseuri); |
} |
} |
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# ---------------------------------------------------- Read map and all submaps |
# ---------------------------------------------------- Read map and all submaps |
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# |
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# Call with uri of course map, short name for course, and filename for |
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# binary structure |
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# |
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sub readmap { |
sub readmap { |
my ($uri,$short,$fn)=@_; |
my $short=shift; |
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$short=~s/^\///; |
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my %cenv=&Apache::lonnet::coursedescription($short); |
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my $fn=$cenv{'fn'}; |
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my $uri; |
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$short=~s/\//\_/g; |
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unless ($uri=$cenv{'url'}) { |
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&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
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"Could not load course $short.</font>"); |
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return 'No course data available.'; |
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} |
@cond=('true:normal'); |
@cond=('true:normal'); |
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unlink($fn.'.db'); |
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unlink($fn.'_symb.db'); |
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unlink($fn.'.state'); |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT,0640)) { |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT,0640)) { |
%hash=(); |
%hash=(); |
$errtext=''; |
$errtext=''; |
Line 322 sub readmap {
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Line 346 sub readmap {
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if ($cfh=Apache::File->new(">$fn.state")) { |
if ($cfh=Apache::File->new(">$fn.state")) { |
print $cfh join("\n",@cond); |
print $cfh join("\n",@cond); |
} else { |
} else { |
&Apache::lonnet::logthis("<font color=blie>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
"Could not write statemap $fn for $uri.</font>"); |
"Could not write statemap $fn for $uri.</font>"); |
} |
} |
} |
} |
} else { |
} else { |
&Apache::lonnet::logthis("<font color=blie>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
"Could not tie coursemap $fn for $uri.</font>"); |
"Could not tie coursemap $fn for $uri.</font>"); |
} |
} |
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&Apache::lonmsg::author_res_msg($ENV{'request.course.uri'},$errtext); |
return $errtext; |
return $errtext; |
} |
} |
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# ------------------------------------------------------- Evaluate state string |
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sub evalstate { |
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my $safeeval = new Safe; |
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my $fn=$ENV{'request.course.fn'}.'.state'; |
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my $state='2'; |
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if (-e $fn) { |
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my @conditions=(); |
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{ |
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my $fh=Apache::File->new($fn); |
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@conditions=<$fh>; |
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} |
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$safeeval->permit("entereval"); |
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$safeeval->permit(":base_math"); |
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$safeeval->deny(":base_io"); |
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$safeeval->share_from('Apache::lonnet',['&varval']); |
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map { |
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my $line=$_; |
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chomp($line); |
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my ($condition,$weight)=split(/\:/,$_); |
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$condition=~s/\[([\w\.]+)\]/\&varval\(\'$1\'\)/g; |
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if ($safeeval->reval($condition)) { |
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if ($weight eq 'force') { |
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$state.='3'; |
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} else { |
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$state.='2'; |
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} |
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} else { |
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if ($weight eq 'stop') { |
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$state.='0'; |
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} else { |
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$state.='1'; |
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} |
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} |
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} @conditions; |
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} |
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&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
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return $state; |
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} |
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1; |
1; |
__END__ |
__END__ |
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