version 1.77, 2004/04/26 19:16:45
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version 1.105, 2006/02/23 18:17:37
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Line 31 package Apache::lonuserstate;
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Line 31 package Apache::lonuserstate;
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# ------------------------------------------------- modules used by this module |
# ------------------------------------------------- modules used by this module |
use strict; |
use strict; |
use Apache::Constants qw(:common :http); |
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use Apache::File; |
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use HTML::TokeParser; |
use HTML::TokeParser; |
use Apache::lonnet(); |
use Apache::lonnet; |
use Apache::loncommon(); |
use Apache::loncommon(); |
use GDBM_File; |
use GDBM_File; |
use Apache::lonmsg; |
use Apache::lonmsg; |
Line 42 use Safe;
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Line 40 use Safe;
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use Safe::Hole; |
use Safe::Hole; |
use Opcode; |
use Opcode; |
use Apache::lonenc; |
use Apache::lonenc; |
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use Fcntl qw(:flock); |
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# ---------------------------------------------------- Globals for this package |
# ---------------------------------------------------- Globals for this package |
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Line 74 sub versiontrack {
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Line 73 sub versiontrack {
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sub putinversion { |
sub putinversion { |
my $uri=shift; |
my $uri=shift; |
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my $key=$env{'request.course.id'}.'_'.&Apache::lonnet::clutter($uri); |
if ($hash{'version_'.$uri}) { |
if ($hash{'version_'.$uri}) { |
my $version=$hash{'version_'.$uri}; |
my $version=$hash{'version_'.$uri}; |
if ($version eq 'mostrecent') { return $uri; } |
if ($version eq 'mostrecent') { return $uri; } |
Line 82 sub putinversion {
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Line 82 sub putinversion {
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{ return $uri; } |
{ return $uri; } |
$uri=~s/\.(\w+)$/\.$version\.$1/; |
$uri=~s/\.(\w+)$/\.$version\.$1/; |
} |
} |
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&Apache::lonnet::do_cache_new('courseresversion',$key,&Apache::lonnet::declutter($uri),600); |
return $uri; |
return $uri; |
} |
} |
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Line 102 sub processversionfile {
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Line 103 sub processversionfile {
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sub loadmap { |
sub loadmap { |
my $uri=shift; |
my $uri=shift; |
if ($hash{'map_pc_'.$uri}) { return OK; } |
if ($hash{'map_pc_'.$uri}) { return; } |
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$pc++; |
$pc++; |
my $lpc=$pc; |
my $lpc=$pc; |
Line 116 sub loadmap {
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Line 117 sub loadmap {
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unless (($fn=~/\.sequence$/) || |
unless (($fn=~/\.sequence$/) || |
($fn=~/\.page$/)) { |
($fn=~/\.page$/)) { |
$errtext.="Invalid map: $fn\n"; |
$errtext.="Invalid map: $fn\n"; |
return OK; |
return; |
} |
} |
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my $instr=&Apache::lonnet::getfile($fn); |
my $instr=&Apache::lonnet::getfile($fn); |
Line 127 sub loadmap {
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Line 128 sub loadmap {
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# Successfully got file, parse it |
# Successfully got file, parse it |
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my $parser = HTML::TokeParser->new(\$instr); |
my $parser = HTML::TokeParser->new(\$instr); |
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$parser->attr_encoded(1); |
my $token; |
my $token; |
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my $linkpc=0; |
my $linkpc=0; |
Line 139 sub loadmap {
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Line 141 sub loadmap {
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if ($token->[0] eq 'S') { |
if ($token->[0] eq 'S') { |
if ($token->[1] eq 'resource') { |
if ($token->[1] eq 'resource') { |
# -------------------------------------------------------------------- Resource |
# -------------------------------------------------------------------- Resource |
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if ($token->[2]->{'type'} eq 'zombie') { next; } |
my $rid=$lpc.'.'.$token->[2]->{'id'}; |
my $rid=$lpc.'.'.$token->[2]->{'id'}; |
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$hash{'kind_'.$rid}='res'; |
$hash{'kind_'.$rid}='res'; |
Line 150 sub loadmap {
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Line 152 sub loadmap {
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$hash{'version_'.$turi}=$1; |
$hash{'version_'.$turi}=$1; |
} |
} |
} |
} |
&Apache::lonnet::do_cache(\%Apache::lonnet::titlecache, |
my $title=$token->[2]->{'title'}; |
&Apache::lonnet::encode_symb($uri,$token->[2]->{'id'}, |
$title=~s/\&colon\;/\:/gs; |
$turi), |
# my $symb=&Apache::lonnet::encode_symb($uri, |
$token->[2]->{'title'},'title'); |
# $token->[2]->{'id'}, |
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# $turi); |
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# &Apache::lonnet::do_cache_new('title',$symb,$title); |
unless ($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') |
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|| ($embstyle eq 'emb') |
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|| ($embstyle eq 'wrp')) { |
$turi='/adm/wrapper'.$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; |
} |
} |
} elsif ($turi=~/\S/) { # normal non-empty internal resource |
} elsif ($turi=~/\S/) { # normal non-empty internal resource |
my $mapdir=$uri; |
my $mapdir=$uri; |
$mapdir=~s/[^\/]+$//; |
$mapdir=~s/[^\/]+$//; |
$turi=&Apache::lonnet::hreflocation($mapdir,$turi); |
$turi=&Apache::lonnet::hreflocation($mapdir,$turi); |
if (($embstyle eq 'img') || ($embstyle eq 'emb')) { |
if (($embstyle eq 'img') |
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|| ($embstyle eq 'emb') |
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|| ($embstyle eq 'wrp')) { |
$turi='/adm/wrapper'.$turi; |
$turi='/adm/wrapper'.$turi; |
} |
} |
} |
} |
Line 183 sub loadmap {
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Line 193 sub loadmap {
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$hash{'ids_'.$idsuri}=''.$rid; |
$hash{'ids_'.$idsuri}=''.$rid; |
} |
} |
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if |
if ($turi=~/\/(syllabus|aboutme|navmaps|smppg|bulletinboard)$/) { |
($turi=~/\/(syllabus|aboutme|navmaps|smppg|bulletinboard)$/) { |
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$turi.='?register=1'; |
$turi.='?register=1'; |
} |
} |
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Line 296 sub loadmap {
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Line 305 sub loadmap {
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} |
} |
} |
} |
} |
} |
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} |
} |
} |
} |
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} else { |
} else { |
$errtext.='Map not loaded: The file does not exist. '; |
$errtext.='Map not loaded: The file ('.$fn.') does not exist. '; |
} |
} |
} |
} |
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# --------------------------------------------------------- Simplify expression |
# --------------------------------------------------------- Simplify expression |
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sub simplify { |
sub simplify { |
my $expression=shift; |
my $expression=shift; |
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# (0&1) = 1 |
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$expression=~s/\(0\&([_\.\d]+)\)/$1/g; |
# (8)=8 |
# (8)=8 |
$expression=~s/\((\d+)\)/$1/g; |
$expression=~s/\(([_\.\d]+)\)/$1/g; |
# 8&8=8 |
# 8&8=8 |
$expression=~s/(\D)(\d+)\&\2(\D)/$1$2$3/g; |
$expression=~s/([^_\.\d])([_\.\d]+)\&\2([^_\.\d])/$1$2$3/g; |
# 8|8=8 |
# 8|8=8 |
$expression=~s/(\D)(\d+)\|\2(\D)/$1$2$3/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+\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; |
# ((5&3)|(4&6))|(1&2)=(5&3)|(4&6)|(1&2) |
# ((5&3)|(4&6))|(1&2)=(5&3)|(4&6)|(1&2) |
$expression=~ |
$expression=~ |
s/\((\(\d+(?:\&\d+)*\))((?:\|\(\d+(?:\&\d+)*\))+)\)\|(\(\d+(?:\&\d+)*\))/\($1$2\|$3\)/g; |
s/\((\([_\.\d]+(?:\&[_\.\d]+)*\))((?:\|\([_\.\d]+(?:\&[_\.\d]+)*\))+)\)\|(\([_\.\d]+(?:\&[_\.\d]+)*\))/\($1$2\|$3\)/g; |
return $expression; |
return $expression; |
} |
} |
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# -------------------------------------------------------- Build condition hash |
# -------------------------------------------------------- Build condition hash |
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sub traceroute { |
sub traceroute { |
my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; |
my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; |
$sofar=simplify($sofar); |
my $newsofar=$sofar=simplify($sofar); |
unless ($beenhere=~/\&$rid\&/) { |
unless ($beenhere=~/\&$rid\&/) { |
$beenhere.=$rid.'&'; |
$beenhere.=$rid.'&'; |
if ($hdnflag) { |
my ($mapid,$resid)=split(/\./,$rid); |
$hiddenurl{$rid}=1; |
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid}); |
} |
my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb); |
if ($encflag) { |
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$encurl{$rid}=1; |
if ($hdnflag || lc($hidden) eq 'yes') { |
} |
$hiddenurl{$rid}=1; |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
} |
&& ($hash{'src_'.$rid}!~/\.sequence$/)) { |
if (!$hdnflag && lc($hidden) eq 'no') { |
my ($mapid,$resid)=split(/\./,$rid); |
delete($hiddenurl{$rid}); |
$retfurl=$hash{'src_'.$rid}. |
} |
(($hash{'src_'.$rid}=~/\?/)?'&':'?').'symb='. |
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&Apache::lonnet::symbclean( |
my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); |
&Apache::lonnet::declutter($hash{'map_id_'.$mapid}). |
if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } |
'___'.$resid.'___'. |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
&Apache::lonnet::declutter($hash{'src_'.$rid})); |
&& ($hash{'src_'.$rid}!~/\.sequence$/)) { |
} |
$retfurl=$hash{'src_'.$rid}.(($hash{'src_'.$rid}=~/\?/)?'&':'?'). |
if (defined($hash{'conditions_'.$rid})) { |
'symb='.$symb; |
$hash{'conditions_'.$rid}=simplify( |
} |
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if (defined($hash{'conditions_'.$rid})) { |
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$hash{'conditions_'.$rid}=simplify( |
'('.$hash{'conditions_'.$rid}.')|('.$sofar.')'); |
'('.$hash{'conditions_'.$rid}.')|('.$sofar.')'); |
} else { |
} else { |
$hash{'conditions_'.$rid}=$sofar; |
$hash{'conditions_'.$rid}=$sofar; |
} |
} |
if (defined($hash{'is_map_'.$rid})) { |
$newsofar='_'.$rid; |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
if (defined($hash{'is_map_'.$rid})) { |
&traceroute($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},'&', |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
$encflag || $encurl{$rid}, |
$sofar=$newsofar= |
$hdnflag || $hiddenurl{$rid}); |
&traceroute($sofar, |
if (defined($hash{'map_finish_'.$hash{'src_'.$rid}})) { |
$hash{'map_start_'.$hash{'src_'.$rid}},'&', |
$sofar= |
$encflag || $encurl{$rid}, |
$hash{'conditions_'.$hash{'map_finish_'.$hash{'src_'.$rid}}}; |
$hdnflag || $hiddenurl{$rid}); |
} |
} |
} |
} |
} |
if (defined($hash{'to_'.$rid})) { |
if (defined($hash{'to_'.$rid})) { |
foreach (split(/\,/,$hash{'to_'.$rid})) { |
foreach (split(/\,/,$hash{'to_'.$rid})) { |
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my $further=$sofar; |
my $further=$sofar; |
if ($hash{'undercond_'.$_}) { |
if ($hash{'undercond_'.$_}) { |
if (defined($hash{'condid_'.$hash{'undercond_'.$_}})) { |
if (defined($hash{'condid_'.$hash{'undercond_'.$_}})) { |
$further=simplify('('.$further.')&('. |
$further=simplify('('.'_'.$rid.')&('. |
$hash{'condid_'.$hash{'undercond_'.$_}}.')'); |
$hash{'condid_'.$hash{'undercond_'.$_}}.')'); |
} else { |
} else { |
$errtext.='Undefined condition ID: ' |
$errtext.='Undefined condition ID: ' |
.$hash{'undercond_'.$_}.'. '; |
.$hash{'undercond_'.$_}.'. '; |
} |
} |
} |
} |
&traceroute($further,$hash{'goesto_'.$_},$beenhere,$encflag,$hdnflag); |
$newsofar=&traceroute($further,$hash{'goesto_'.$_},$beenhere, |
} |
$encflag,$hdnflag); |
} |
} |
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} |
} |
} |
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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 406 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; |
foreach (keys %hash) { |
foreach my $key (keys(%hash)) { |
if ($_=~/^conditions/) { |
if ($key=~/^conditions/) { |
my $expr=$hash{$_}; |
my $expr=$hash{$key}; |
foreach ($expr=~m/(\(\(\d+(?:\&\d+)+\)(?:\|\(\d+(?:\&\d+)+\))+\))/g) { |
foreach my $sub ($expr=~m/(\(\([_\.\d]+(?:\&[_\.\d]+)+\)(?:\|\([_\.\d]+(?:\&[_\.\d]+)+\))+\))/g) { |
my $sub=$_; |
my $orig=$sub; |
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/; |
} |
} |
$hash{$key}=$expr; |
$hash{$_}=$expr; |
unless (defined($captured{$expr})) { |
unless (defined($captured{$expr})) { |
$condcounter++; |
$condcounter++; |
$captured{$expr}=$condcounter; |
$captured{$expr}=$condcounter; |
$acchash{'acc.cond.'.$short.'.'.$condcounter}=$expr; |
$acchash{'acc.cond.'.$short.'.'.$condcounter}=$expr; |
} |
} |
} elsif ($key=~/^param_(\d+)\.(\d+)/) { |
} elsif ($_=~/^param_(\d+)\.(\d+)/) { |
my $prefix=&Apache::lonnet::encode_symb($hash{'map_id_'.$1},$2, |
my $prefix=&Apache::lonnet::declutter($hash{'map_id_'.$1}). |
$hash{'src_'.$1.'.'.$2}); |
'___'.$2.'___'.&Apache::lonnet::declutter($hash{'src_'.$1.'.'.$2}); |
foreach my $param (split(/\&/,$hash{$key})) { |
foreach (split(/\&/,$hash{$_})) { |
my ($typename,$value)=split(/\=/,$param); |
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); |
} |
} |
} |
} |
} |
} |
foreach my $key (keys(%hash)) { |
foreach (keys %hash) { |
if ($key=~/^ids/) { |
if ($_=~/^ids/) { |
foreach my $resid (split(/\,/,$hash{$key})) { |
foreach (split(/\,/,$hash{$_})) { |
my $uri=$hash{'src_'.$resid}; |
my $resid=$_; |
my ($uripath,$urifile) = |
my $uri=$hash{'src_'.$resid}; |
&Apache::lonnet::split_uri_for_cond($uri); |
$uri=~s/^\/adm\/wrapper//; |
if ($uripath) { |
$uri=&Apache::lonnet::declutter($uri); |
my $uricond='0'; |
my @uriparts=split(/\//,$uri); |
if (defined($hash{'conditions_'.$resid})) { |
my $urifile=$uriparts[$#uriparts]; |
$uricond=$captured{$hash{'conditions_'.$resid}}; |
$#uriparts--; |
} |
my $uripath=join('/',@uriparts); |
if (defined($acchash{'acc.res.'.$short.'.'.$uripath})) { |
if ($uripath) { |
if ($acchash{'acc.res.'.$short.'.'.$uripath}=~ |
my $uricond='0'; |
/(\&\Q$urifile\E\:[^\&]*)/) { |
if (defined($hash{'conditions_'.$resid})) { |
my $replace=$1; |
$uricond=$captured{$hash{'conditions_'.$resid}}; |
my $regexp=$replace; |
} |
#$regexp=~s/\|/\\\|/g; |
if (defined($acchash{'acc.res.'.$short.'.'.$uripath})) { |
$acchash{'acc.res.'.$short.'.'.$uripath} =~ |
if ($acchash{'acc.res.'.$short.'.'.$uripath}=~ |
s/\Q$regexp\E/$replace\|$uricond/; |
/(\&\Q$urifile\E\:[^\&]*)/) { |
} else { |
my $replace=$1; |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
my $regexp=$replace; |
$urifile.':'.$uricond.'&'; |
$regexp=~s/\|/\\\|/g; |
} |
$acchash{'acc.res.'.$short.'.'.$uripath} |
} else { |
=~s/$regexp/$replace\|$uricond/; |
$acchash{'acc.res.'.$short.'.'.$uripath}= |
} else { |
'&'.$urifile.':'.$uricond.'&'; |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
} |
$urifile.':'.$uricond.'&'; |
} |
} |
} |
} else { |
} |
$acchash{'acc.res.'.$short.'.'.$uripath}= |
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'&'.$urifile.':'.$uricond.'&'; |
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} |
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} |
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} |
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} |
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} |
} |
$acchash{'acc.res.'.$short.'.'}='&:0&'; |
$acchash{'acc.res.'.$short.'.'}='&:0&'; |
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" => $courseuri); |
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} |
} |
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# ---------------- Selectively delete from randompick maps and hidden url parms |
# ---------------- Selectively delete from randompick maps and hidden url parms |
Line 508 sub hiddenurls {
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Line 513 sub hiddenurls {
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$hash{'randomout_'.$currentrids[$k]}=1; |
$hash{'randomout_'.$currentrids[$k]}=1; |
my ($mapid,$resid)=split(/\./,$currentrids[$k]); |
my ($mapid,$resid)=split(/\./,$currentrids[$k]); |
$randomoutentry.='&'. |
$randomoutentry.='&'. |
&Apache::lonnet::symbclean( |
&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
&Apache::lonnet::declutter($hash{'map_id_'.$mapid}). |
$resid, |
'___'.$resid.'___'. |
$hash{'src_'.$currentrids[$k]} |
&Apache::lonnet::declutter($hash{'src_'.$currentrids[$k]}) |
).'&'; |
).'&'; |
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} |
} |
} |
} |
} |
} |
Line 521 sub hiddenurls {
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Line 525 sub hiddenurls {
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$hash{'randomout_'.$rid}=1; |
$hash{'randomout_'.$rid}=1; |
my ($mapid,$resid)=split(/\./,$rid); |
my ($mapid,$resid)=split(/\./,$rid); |
$randomoutentry.='&'. |
$randomoutentry.='&'. |
&Apache::lonnet::symbclean( |
&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid, |
&Apache::lonnet::declutter($hash{'map_id_'.$mapid}). |
$hash{'src_'.$rid}).'&'; |
'___'.$resid.'___'. |
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&Apache::lonnet::declutter($hash{'src_'.$rid}) |
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).'&'; |
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} |
} |
# --------------------------------------- append randomout entry to environment |
# --------------------------------------- append randomout entry to environment |
if ($randomoutentry) { |
if ($randomoutentry) { |
Line 536 sub hiddenurls {
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Line 537 sub hiddenurls {
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# ---------------------------------------------------- Read map and all submaps |
# ---------------------------------------------------- Read map and all submaps |
|
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sub readmap { |
sub readmap { |
my $short=shift; |
my $short=shift; |
$short=~s/^\///; |
$short=~s/^\///; |
my %cenv=&Apache::lonnet::coursedescription($short); |
my %cenv=&Apache::lonnet::coursedescription($short); |
my $fn=$cenv{'fn'}; |
my $fn=$cenv{'fn'}; |
my $uri; |
my $uri; |
$short=~s/\//\_/g; |
$short=~s/\//\_/g; |
unless ($uri=$cenv{'url'}) { |
unless ($uri=$cenv{'url'}) { |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
"Could not load course $short.</font>"); |
"Could not load course $short.</font>"); |
return 'No course data available.'; |
return 'No course data available.'; |
} |
} |
@cond=('true:normal'); |
@cond=('true:normal'); |
unlink($fn.'.db'); |
|
unlink($fn.'_symb.db'); |
open(LOCKFILE,">$fn.db.lock"); |
unlink($fn.'.state'); |
my $lock=0; |
unlink($fn.'parms.db'); |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB)) { |
undef %randompick; |
$lock=1; |
undef %hiddenurl; |
unlink($fn.'.db'); |
undef %encurl; |
unlink($fn.'_symb.db'); |
$retfurl=''; |
unlink($fn.'.state'); |
if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
unlink($fn.'parms.db'); |
(tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { |
} |
%hash=(); |
undef %randompick; |
%parmhash=(); |
undef %hiddenurl; |
$errtext=''; |
undef %encurl; |
$pc=0; |
$retfurl=''; |
&processversionfile(%cenv); |
if ($lock && (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
my $furi=&Apache::lonnet::clutter($uri); |
(tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { |
$hash{'src_0.0'}=&versiontrack($furi); |
%hash=(); |
$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
%parmhash=(); |
$hash{'ids_'.$furi}='0.0'; |
$errtext=''; |
$hash{'is_map_0.0'}=1; |
$pc=0; |
loadmap($uri); |
&processversionfile(%cenv); |
if (defined($hash{'map_start_'.$uri})) { |
my $furi=&Apache::lonnet::clutter($uri); |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
$hash{'src_0.0'}=&versiontrack($furi); |
&accinit($uri,$short,$fn); |
$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
&hiddenurls(); |
$hash{'ids_'.$furi}='0.0'; |
} |
$hash{'is_map_0.0'}=1; |
|
loadmap($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); |
|
&hiddenurls(); |
|
} |
# ------------------------------------------------------- Put versions into src |
# ------------------------------------------------------- Put versions into src |
foreach (keys %hash) { |
foreach (keys %hash) { |
if ($_=~/^src\_/) { |
if ($_=~/^src\_/) { |
$hash{$_}=&putinversion($hash{$_}); |
$hash{$_}=&putinversion($hash{$_}); |
|
} |
} |
} |
} |
|
# ---------------------------------------------------------------- Encrypt URLs |
# ---------------------------------------------------------------- Encrypt URLs |
foreach (keys %encurl) { |
foreach (keys %encurl) { |
$hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_}); |
# $hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_}); |
} |
$hash{'encrypted_'.$_}=1; |
|
} |
# ----------------------------------------------- Close hashes to finally store |
# ----------------------------------------------- Close hashes to finally store |
# --------------------------------- Routine must pass this point, no early outs |
# --------------------------------- Routine must pass this point, no early outs |
unless ((untie(%hash)) && (untie(%parmhash))) { |
$hash{'first_url'}=$retfurl; |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
unless ((untie(%hash)) && (untie(%parmhash))) { |
"Could not untie coursemap $fn for $uri.</font>"); |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
} |
"Could not untie coursemap $fn for $uri.</font>"); |
|
} |
# ---------------------------------------------------- Store away initial state |
# ---------------------------------------------------- Store away initial state |
{ |
{ |
my $cfh; |
my $cfh; |
if ($cfh=Apache::File->new(">$fn.state")) { |
if (open($cfh,">$fn.state")) { |
print $cfh join("\n",@cond); |
print $cfh join("\n",@cond); |
} else { |
} else { |
&Apache::lonnet::logthis("<font color=blue>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 { |
flock(LOCKFILE,LOCK_UN); |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
close(LOCKFILE); |
"Could not tie coursemap $fn for $uri.</font>"); |
} else { |
} |
# if we are here it is likely because we are already trying to |
&Apache::lonmsg::author_res_msg($ENV{'request.course.uri'},$errtext); |
# initialize the course in another child, busy wait trying to |
|
# tie the hashes for the next 90 seconds, if we succeed forward |
|
# them on to navmaps, if we fail, throw up the Could not init |
|
# course screen |
|
if ($lock) { |
|
# Got the lock but not the DB files |
|
flock(LOCKFILE,LOCK_UN); |
|
} |
|
untie(%hash); |
|
untie(%parmhash); |
|
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
|
"Could not tie coursemap $fn for $uri.</font>"); |
|
my $i=0; |
|
while($i<90) { |
|
$i++; |
|
sleep(1); |
|
if (flock(LOCKFILE,LOCK_EX|LOCK_NB) && |
|
(tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640))) { |
|
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) { |
|
$retfurl='/adm/navmaps'; |
|
&Apache::lonnet::appenv("request.course.id" => $short, |
|
"request.course.fn" => $fn, |
|
"request.course.uri" => $uri); |
|
untie(%hash); |
|
untie(%parmhash); |
|
last; |
|
} |
|
} |
|
untie(%hash); |
|
untie(%parmhash); |
|
} |
|
flock(LOCKFILE,LOCK_UN); |
|
close(LOCKFILE); |
|
} |
|
&Apache::lonmsg::author_res_msg($env{'request.course.uri'},$errtext); |
# ------------------------------------------------- Check for critical messages |
# ------------------------------------------------- Check for critical messages |
|
|
my @what=&Apache::lonnet::dump('critical',$ENV{'user.domain'}, |
my @what=&Apache::lonnet::dump('critical',$env{'user.domain'}, |
$ENV{'user.name'}); |
$env{'user.name'}); |
if ($what[0]) { |
if ($what[0]) { |
if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) { |
if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) { |
$retfurl='/adm/email?critical=display'; |
$retfurl='/adm/email?critical=display'; |
} |
} |
} |
} |
return ($retfurl,$errtext); |
return ($retfurl,$errtext); |
} |
} |
|
|
# ------------------------------------------------------- Evaluate state string |
# ------------------------------------------------------- Evaluate state string |
|
|
sub evalstate { |
sub evalstate { |
|
my $fn=$env{'request.course.fn'}.'.state'; |
my $fn=$ENV{'request.course.fn'}.'.state'; |
my $state=''; |
my $state='2'; |
|
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'; |
$state.='1'; |
} |
} |
} |
} |
} |
} |
|
} |
} |
&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
&Apache::lonnet::appenv('user.state.'.$env{'request.course.id'} => $state); |
return $state; |
return $state; |
} |
} |
|
|