version 1.90, 2005/05/05 20:43:28
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version 1.112, 2006/05/12 15:30:53
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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 HTML::TokeParser; |
use HTML::TokeParser; |
use Apache::lonnet; |
use Apache::lonnet; |
use Apache::loncommon(); |
use Apache::loncommon(); |
Line 41 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 73 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 81 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 91 sub processversionfile {
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Line 93 sub processversionfile {
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my %versions=&Apache::lonnet::dump('resourceversions', |
my %versions=&Apache::lonnet::dump('resourceversions', |
$cenv{'domain'}, |
$cenv{'domain'}, |
$cenv{'num'}); |
$cenv{'num'}); |
foreach (keys %versions) { |
foreach my $ver (keys(%versions)) { |
if ($_=~/^error\:/) { return; } |
if ($ver=~/^error\:/) { return; } |
$hash{'version_'.$_}=$versions{$_}; |
$hash{'version_'.$ver}=$versions{$ver}; |
} |
} |
} |
} |
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Line 101 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 118 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 126 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 $linkpc=0; |
Line 138 sub loadmap {
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Line 141 sub loadmap {
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if ($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 161 sub loadmap {
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Line 164 sub loadmap {
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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 ($embstyle eq 'ssi') { |
} elsif ($embstyle eq 'ssi') { |
#do nothing with these |
#do nothing with these |
Line 172 sub loadmap {
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Line 177 sub loadmap {
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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 311 sub loadmap {
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Line 318 sub loadmap {
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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 $expression; |
} |
} |
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Line 338 sub traceroute {
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Line 347 sub traceroute {
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my ($mapid,$resid)=split(/\./,$rid); |
my ($mapid,$resid)=split(/\./,$rid); |
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid}); |
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid}); |
my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb); |
my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb); |
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if ($hdnflag || lc($hidden) eq 'yes') { |
if ($hdnflag || lc($hidden) eq 'yes') { |
$hiddenurl{$rid}=1; |
$hiddenurl{$rid}=1; |
} else { |
} |
# shouldn't be hidden, but might have had a parm set on it |
if (!$hdnflag && lc($hidden) eq 'no') { |
# saying to |
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delete($hiddenurl{$rid}); |
delete($hiddenurl{$rid}); |
} |
} |
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my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); |
my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); |
if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } |
if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
Line 358 sub traceroute {
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Line 368 sub traceroute {
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} else { |
} else { |
$hash{'conditions_'.$rid}=$sofar; |
$hash{'conditions_'.$rid}=$sofar; |
} |
} |
$newsofar=$hash{'conditions_'.$rid}; |
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# if the expression is just the 0th condition keep it |
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# otherwise leave a pointer to this condition expression |
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$newsofar = ($sofar eq '0') ? $sofar : '_'.$rid; |
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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}})) { |
$sofar=$newsofar= |
$sofar=$newsofar= |
Line 369 sub traceroute {
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Line 383 sub traceroute {
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} |
} |
} |
} |
if (defined($hash{'to_'.$rid})) { |
if (defined($hash{'to_'.$rid})) { |
foreach (split(/\,/,$hash{'to_'.$rid})) { |
foreach my $id (split(/\,/,$hash{'to_'.$rid})) { |
my $further=$sofar; |
my $further=$sofar; |
if ($hash{'undercond_'.$_}) { |
if ($hash{'undercond_'.$id}) { |
if (defined($hash{'condid_'.$hash{'undercond_'.$_}})) { |
if (defined($hash{'condid_'.$hash{'undercond_'.$id}})) { |
$further=simplify('('.$further.')&('. |
$further=simplify('('.'_'.$rid.')&('. |
$hash{'condid_'.$hash{'undercond_'.$_}}.')'); |
$hash{'condid_'.$hash{'undercond_'.$id}}.')'); |
} else { |
} else { |
$errtext.='Undefined condition ID: ' |
$errtext.='Undefined condition ID: ' |
.$hash{'undercond_'.$_}.'. '; |
.$hash{'undercond_'.$id}.'. '; |
} |
} |
} |
} |
$newsofar=&traceroute($further,$hash{'goesto_'.$_},$beenhere, |
$newsofar=&traceroute($further,$hash{'goesto_'.$id},$beenhere, |
$encflag,$hdnflag); |
$encflag,$hdnflag); |
} |
} |
} |
} |
Line 396 sub accinit {
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Line 410 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) { |
# try to find and factor out common sub-expressions |
my $sub=$_; |
foreach my $sub ($expr=~m/(\(\([_\.\d]+(?:\&[_\.\d]+)+\)(?:\|\([_\.\d]+(?:\&[_\.\d]+)+\))+\))/g) { |
my $orig=$_; |
my $orig=$sub; |
$sub=~/\(\((\d+\&(:?\d+\&)*)(?:\d+\&*)+\)(?:\|\(\1(?:\d+\&*)+\))+\)/; |
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my $factor=$1; |
my ($factor) = ($sub=~/\(\(([_\.\d]+\&(:?[_\.\d]+\&)*)(?:[_\.\d]+\&*)+\)(?:\|\(\1(?:[_\.\d]+\&*)+\))+\)/); |
$sub=~s/$factor//g; |
next if (!defined($factor)); |
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$sub=~s/\Q$factor\E//g; |
$sub=~s/^\(/\($factor\(/; |
$sub=~s/^\(/\($factor\(/; |
$sub.=')'; |
$sub.=')'; |
$sub=simplify($sub); |
$sub=simplify($sub); |
$orig=~s/(\W)/\\$1/g; |
$expr=~s/\Q$orig\E/$sub/; |
$expr=~s/$orig/$sub/; |
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} |
} |
$hash{$_}=$expr; |
$hash{$key}=$expr; |
unless (defined($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 ($_=~/^param_(\d+)\.(\d+)/) { |
} elsif ($key=~/^param_(\d+)\.(\d+)/) { |
my $prefix=&Apache::lonnet::encode_symb($hash{'map_id_'.$1},$2, |
my $prefix=&Apache::lonnet::encode_symb($hash{'map_id_'.$1},$2, |
$hash{'src_'.$1.'.'.$2}); |
$hash{'src_'.$1.'.'.$2}); |
foreach (split(/\&/,$hash{$_})) { |
foreach my $param (split(/\&/,$hash{$key})) { |
my ($typename,$value)=split(/\=/,$_); |
my ($typename,$value)=split(/\=/,$param); |
my ($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); |
Line 430 sub accinit {
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Line 445 sub accinit {
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} |
} |
} |
} |
} |
} |
foreach (keys %hash) { |
foreach my $key (keys(%hash)) { |
if ($_=~/^ids/) { |
if ($key=~/^ids/) { |
foreach (split(/\,/,$hash{$_})) { |
foreach my $resid (split(/\,/,$hash{$key})) { |
my $resid=$_; |
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my $uri=$hash{'src_'.$resid}; |
my $uri=$hash{'src_'.$resid}; |
$uri=~s/^\/adm\/wrapper//; |
my ($uripath,$urifile) = |
$uri=&Apache::lonnet::declutter($uri); |
&Apache::lonnet::split_uri_for_cond($uri); |
my @uriparts=split(/\//,$uri); |
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my $urifile=$uriparts[$#uriparts]; |
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$#uriparts--; |
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my $uripath=join('/',@uriparts); |
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if ($uripath) { |
if ($uripath) { |
my $uricond='0'; |
my $uricond='0'; |
if (defined($hash{'conditions_'.$resid})) { |
if (defined($hash{'conditions_'.$resid})) { |
Line 452 sub accinit {
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Line 462 sub accinit {
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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.'.'.$uripath} =~ |
=~s/\Q$regexp\E/$replace\|$uricond/; |
s/\Q$regexp\E/$replace\|$uricond/; |
} else { |
} else { |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
$acchash{'acc.res.'.$short.'.'.$uripath}.= |
$urifile.':'.$uricond.'&'; |
$urifile.':'.$uricond.'&'; |
Line 482 sub hiddenurls {
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Line 492 sub hiddenurls {
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my $mpc=$hash{'map_pc_'.$hash{'src_'.$rid}}; |
my $mpc=$hash{'map_pc_'.$hash{'src_'.$rid}}; |
# ------------------------------------------- put existing resources into array |
# ------------------------------------------- put existing resources into array |
my @currentrids=(); |
my @currentrids=(); |
foreach (sort(keys(%hash))) { |
foreach my $key (sort(keys(%hash))) { |
if ($_=~/^src_($mpc\.\d+)/) { |
if ($key=~/^src_($mpc\.\d+)/) { |
if ($hash{'src_'.$1}) { push @currentrids, $1; } |
if ($hash{'src_'.$1}) { push @currentrids, $1; } |
} |
} |
} |
} |
Line 535 sub hiddenurls {
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Line 545 sub hiddenurls {
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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,{'freshen_cache'=>1}); |
my $fn=$cenv{'fn'}; |
my $fn=$cenv{'fn'}; |
my $uri; |
my $uri; |
$short=~s/\//\_/g; |
$short=~s/\//\_/g; |
Line 545 sub readmap {
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Line 555 sub readmap {
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return 'No course data available.'; |
return 'No course data available.'; |
} |
} |
@cond=('true:normal'); |
@cond=('true:normal'); |
#unlink($fn.'.db'); |
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#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)) { |
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$lock=1; |
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unlink($fn.'.db'); |
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unlink($fn.'_symb.db'); |
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unlink($fn.'.state'); |
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unlink($fn.'parms.db'); |
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} |
undef %randompick; |
undef %randompick; |
undef %hiddenurl; |
undef %hiddenurl; |
undef %encurl; |
undef %encurl; |
$retfurl=''; |
$retfurl=''; |
if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
if ($lock && (tie(%hash,'GDBM_File',"$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=(); |
Line 575 sub readmap {
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Line 591 sub readmap {
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&hiddenurls(); |
&hiddenurls(); |
} |
} |
# ------------------------------------------------------- Put versions into src |
# ------------------------------------------------------- Put versions into src |
foreach (keys %hash) { |
foreach my $key (keys(%hash)) { |
if ($_=~/^src\_/) { |
if ($key=~/^src_/) { |
$hash{$_}=&putinversion($hash{$_}); |
$hash{$key}=&putinversion($hash{$key}); |
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} elsif ($key =~ /^(map_(?:start|finish|pc)_)(.*)/) { |
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my ($type, $url) = ($1,$2); |
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my $value = $hash{$key}; |
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$hash{$type.&putinversion($url)}=$value; |
} |
} |
} |
} |
# ---------------------------------------------------------------- Encrypt URLs |
# ---------------------------------------------------------------- Encrypt URLs |
foreach (keys %encurl) { |
foreach my $id (keys(%encurl)) { |
# $hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_}); |
# $hash{'src_'.$id}=&Apache::lonenc::encrypted($hash{'src_'.$id}); |
$hash{'encrypted_'.$_}=1; |
$hash{'encrypted_'.$id}=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 |
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$hash{'first_url'}=$retfurl; |
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>"); |
Line 600 sub readmap {
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Line 621 sub readmap {
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&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 $uri.</font>"); |
} |
} |
} |
} |
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flock(LOCKFILE,LOCK_UN); |
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close(LOCKFILE); |
} else { |
} else { |
# if we are here it is likely because we are already trying to |
# if we are here it is likely because we are already trying to |
# initialize the course in another child, busy wait trying to |
# initialize the course in another child, busy wait trying to |
# tie the hashes for the next 90 seconds, if we succeed forward |
# tie the hashes for the next 90 seconds, if we succeed forward |
# them on to navmaps, if we fail, throw up the Could not init |
# them on to navmaps, if we fail, throw up the Could not init |
# course screen |
# course screen |
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if ($lock) { |
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# Got the lock but not the DB files |
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flock(LOCKFILE,LOCK_UN); |
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} |
untie(%hash); |
untie(%hash); |
untie(%parmhash); |
untie(%parmhash); |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
Line 615 sub readmap {
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Line 642 sub readmap {
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while($i<90) { |
while($i<90) { |
$i++; |
$i++; |
sleep(1); |
sleep(1); |
if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640))) { |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB) && |
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(tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640))) { |
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) { |
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) { |
$retfurl='/adm/navmaps'; |
$retfurl='/adm/navmaps'; |
&Apache::lonnet::appenv("request.course.id" => $short, |
&Apache::lonnet::appenv("request.course.id" => $short, |
Line 629 sub readmap {
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Line 657 sub readmap {
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untie(%hash); |
untie(%hash); |
untie(%parmhash); |
untie(%parmhash); |
} |
} |
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flock(LOCKFILE,LOCK_UN); |
|
close(LOCKFILE); |
} |
} |
&Apache::lonmsg::author_res_msg($env{'request.course.uri'},$errtext); |
&Apache::lonmsg::author_res_msg($env{'request.course.uri'},$errtext); |
# ------------------------------------------------- Check for critical messages |
# ------------------------------------------------- Check for critical messages |