version 1.121, 2007/08/28 01:09:14
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version 1.137.2.1, 2011/10/06 23:30:06
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Line 56 my $retfrid; # variable with the very fi
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Line 56 my $retfrid; # variable with the very fi
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my $retfurl; # first URL |
my $retfurl; # first URL |
my %randompick; # randomly picked resources |
my %randompick; # randomly picked resources |
my %randompickseed; # optional seed for randomly picking resources |
my %randompickseed; # optional seed for randomly picking resources |
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my %randomorder; # maps to order contents randomly |
my %encurl; # URLs in this folder are supposed to be encrypted |
my %encurl; # URLs in this folder are supposed to be encrypted |
my %hiddenurl; # this URL (or complete folder) is supposed to be hidden |
my %hiddenurl; # this URL (or complete folder) is supposed to be hidden |
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# ----------------------------------- Remove version from URL and store in hash |
# ----------------------------------- Remove version from URL and store in hash |
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sub versionerror { |
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my ($uri,$usedversion,$unusedversion)=@_; |
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return '<br />'.&mt('Version discrepancy: resource [_1] included in both version [_2] and version [_3]. Using version [_2].', |
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$uri,$usedversion,$unusedversion).'<br />'; |
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} |
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sub versiontrack { |
sub versiontrack { |
my $uri=shift; |
my $uri=shift; |
if ($uri=~/\.(\d+)\.\w+$/) { |
if ($uri=~/\.(\d+)\.\w+$/) { |
Line 68 sub versiontrack {
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Line 75 sub versiontrack {
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$uri=~s/\.\d+\.(\w+)$/\.$1/; |
$uri=~s/\.\d+\.(\w+)$/\.$1/; |
unless ($hash{'version_'.$uri}) { |
unless ($hash{'version_'.$uri}) { |
$hash{'version_'.$uri}=$version; |
$hash{'version_'.$uri}=$version; |
} |
} elsif ($version!=$hash{'version_'.$uri}) { |
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$errtext.=&versionerror($uri,$hash{'version_'.$uri},$version); |
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} |
} |
} |
return $uri; |
return $uri; |
} |
} |
Line 106 sub processversionfile {
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Line 115 sub processversionfile {
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# --------------------------------------------------------- Loads map from disk |
# --------------------------------------------------------- Loads map from disk |
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sub loadmap { |
sub loadmap { |
my $uri=shift; |
my ($uri,$parent_rid)=@_; |
if ($hash{'map_pc_'.$uri}) { |
if ($hash{'map_pc_'.$uri}) { |
$errtext.='<p class="LC_error">'. |
$errtext.='<p class="LC_error">'. |
&mt('Multiple use of sequence/page [_1]! The course will not function properly.','<tt>'.$uri.'</tt>'). |
&mt('Multiple use of sequence/page [_1]! The course will not function properly.','<tt>'.$uri.'</tt>'). |
Line 117 sub loadmap {
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Line 126 sub loadmap {
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my $lpc=$pc; |
my $lpc=$pc; |
$hash{'map_pc_'.$uri}=$lpc; |
$hash{'map_pc_'.$uri}=$lpc; |
$hash{'map_id_'.$lpc}=$uri; |
$hash{'map_id_'.$lpc}=$uri; |
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if ($parent_rid =~ /^(\d+)\.\d+$/) { |
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my $parent_pc = $1; |
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if (defined($hash{'map_hierarchy_'.$parent_pc})) { |
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$hash{'map_hierarchy_'.$lpc}=$hash{'map_hierarchy_'.$parent_pc}.','. |
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$parent_pc; |
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} else { |
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$hash{'map_hierarchy_'.$lpc}=$parent_pc; |
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} |
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} |
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# Determine and check filename |
# Determine and check filename |
my $fn=&Apache::lonnet::filelocation('',&putinversion($uri)); |
my $fn=&Apache::lonnet::filelocation('',&putinversion($uri)); |
Line 131 sub loadmap {
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Line 149 sub loadmap {
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my $instr=&Apache::lonnet::getfile($fn); |
my $instr=&Apache::lonnet::getfile($fn); |
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unless ($instr eq -1) { |
if ($instr eq -1) { |
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$errtext.=&mt('<br />Map not loaded: The file <tt>[_1]</tt> does not exist.',$fn); |
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return; |
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} |
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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); |
$parser->attr_encoded(1); |
$parser->attr_encoded(1); |
my $token; |
# first get all parameters |
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while (my $token = $parser->get_token) { |
my $linkpc=0; |
next if ($token->[0] ne 'S'); |
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if ($token->[1] eq 'param') { |
$fn=~/\.(\w+)$/; |
&parse_param($token,$lpc); |
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} |
$hash{'map_type_'.$lpc}=$1; |
} |
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#reset parser |
while ($token = $parser->get_token) { |
$parser = HTML::TokeParser->new(\$instr); |
if ($token->[0] eq 'S') { |
$parser->attr_encoded(1); |
if ($token->[1] eq 'resource') { |
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# -------------------------------------------------------------------- Resource |
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if ($token->[2]->{'type'} eq 'zombie') { next; } |
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my $rid=$lpc.'.'.$token->[2]->{'id'}; |
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$hash{'kind_'.$rid}='res'; |
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$hash{'title_'.$rid}=$token->[2]->{'title'}; |
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my $turi=&versiontrack($token->[2]->{'src'}); |
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if ($token->[2]->{'version'}) { |
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unless ($hash{'version_'.$turi}) { |
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$hash{'version_'.$turi}=$1; |
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} |
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} |
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my $title=$token->[2]->{'title'}; |
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$title=~s/\&colon\;/\:/gs; |
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# my $symb=&Apache::lonnet::encode_symb($uri, |
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# $token->[2]->{'id'}, |
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# $turi); |
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# &Apache::lonnet::do_cache_new('title',$symb,$title); |
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unless ($ispage) { |
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$turi=~/\.(\w+)$/; |
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my $embstyle=&Apache::loncommon::fileembstyle($1); |
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if ($token->[2]->{'external'} eq 'true') { # external |
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$turi=~s/^http\:\/\//\/adm\/wrapper\/ext\//; |
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} elsif ($turi=~/^\/*uploaded\//) { # uploaded |
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if (($embstyle eq 'img') |
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|| ($embstyle eq 'emb') |
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|| ($embstyle eq 'wrp')) { |
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$turi='/adm/wrapper'.$turi; |
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} elsif ($embstyle eq 'ssi') { |
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#do nothing with these |
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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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} elsif ($turi=~/\S/) { # normal non-empty internal resource |
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my $mapdir=$uri; |
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$mapdir=~s/[^\/]+$//; |
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$turi=&Apache::lonnet::hreflocation($mapdir,$turi); |
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if (($embstyle eq 'img') |
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|| ($embstyle eq 'emb') |
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|| ($embstyle eq 'wrp')) { |
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$turi='/adm/wrapper'.$turi; |
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} |
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} |
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} |
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# Store reverse lookup, remove query string |
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my $idsuri=$turi; |
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$idsuri=~s/\?.+$//; |
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if (defined($hash{'ids_'.$idsuri})) { |
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$hash{'ids_'.$idsuri}.=','.$rid; |
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} else { |
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$hash{'ids_'.$idsuri}=''.$rid; |
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} |
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if ($turi=~/\/(syllabus|aboutme|navmaps|smppg|bulletinboard)$/) { |
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$turi.='?register=1'; |
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} |
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$hash{'src_'.$rid}=$turi; |
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if ($token->[2]->{'external'} eq 'true') { |
my $linkpc=0; |
$hash{'ext_'.$rid}='true:'; |
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} else { |
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$hash{'ext_'.$rid}='false:'; |
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} |
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if ($token->[2]->{'type'}) { |
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$hash{'type_'.$rid}=$token->[2]->{'type'}; |
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if ($token->[2]->{'type'} eq 'start') { |
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$hash{'map_start_'.$uri}="$rid"; |
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} |
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if ($token->[2]->{'type'} eq 'finish') { |
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$hash{'map_finish_'.$uri}="$rid"; |
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} |
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} else { |
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$hash{'type_'.$rid}='normal'; |
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} |
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if (($turi=~/\.sequence$/) || |
$fn=~/\.(\w+)$/; |
($turi=~/\.page$/)) { |
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$hash{'is_map_'.$rid}=1; |
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&loadmap($turi); |
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} |
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} elsif ($token->[1] eq 'condition') { |
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# ------------------------------------------------------------------- Condition |
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my $rid=$lpc.'.'.$token->[2]->{'id'}; |
$hash{'map_type_'.$lpc}=$1; |
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$hash{'kind_'.$rid}='cond'; |
my $randomize = ($randomorder{$parent_rid} =~ /^yes$/i); |
$cond[$#cond+1]=$token->[2]->{'value'}; |
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$hash{'condid_'.$rid}=$#cond; |
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if ($token->[2]->{'type'}) { |
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$cond[$#cond].=':'.$token->[2]->{'type'}; |
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} else { |
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$cond[$#cond].=':normal'; |
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} |
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} elsif ($token->[1] eq 'link') { |
my @map_ids; |
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while (my $token = $parser->get_token) { |
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next if ($token->[0] ne 'S'); |
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if ($token->[1] eq 'resource') { |
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push(@map_ids,&parse_resource($token,$lpc,$ispage,$uri)); |
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} elsif ($token->[1] eq 'link' && !$randomize) { |
# ----------------------------------------------------------------------- Links |
# ----------------------------------------------------------------------- Links |
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&make_link(++$linkpc,$lpc,$token->[2]->{'to'}, |
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$token->[2]->{'from'}, |
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$token->[2]->{'condition'}); |
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} elsif ($token->[1] eq 'condition' && !$randomize) { |
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&parse_condition($token,$lpc); |
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} |
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} |
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$linkpc++; |
if ($randomize) { |
my $linkid=$lpc.'.'.$linkpc; |
if (!$env{'request.role.adv'}) { |
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my $seed; |
my $goesto=$lpc.'.'.$token->[2]->{'to'}; |
if (defined($randompickseed{$parent_rid})) { |
my $comesfrom=$lpc.'.'.$token->[2]->{'from'}; |
$seed = $randompickseed{$parent_rid}; |
my $undercond=0; |
} else { |
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my ($mapid,$resid)=split(/\./,$parent_rid); |
if ($token->[2]->{'condition'}) { |
my $symb= |
$undercond=$lpc.'.'.$token->[2]->{'condition'}; |
&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
} |
$resid,$hash{'src_'.$parent_rid}); |
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$hash{'goesto_'.$linkid}=$goesto; |
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$hash{'comesfrom_'.$linkid}=$comesfrom; |
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$hash{'undercond_'.$linkid}=$undercond; |
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if (defined($hash{'to_'.$comesfrom})) { |
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$hash{'to_'.$comesfrom}.=','.$linkid; |
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} else { |
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$hash{'to_'.$comesfrom}=''.$linkid; |
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} |
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if (defined($hash{'from_'.$goesto})) { |
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$hash{'from_'.$goesto}.=','.$linkid; |
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} else { |
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$hash{'from_'.$goesto}=''.$linkid; |
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} |
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} elsif ($token->[1] eq 'param') { |
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# ------------------------------------------------------------------- Parameter |
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my $referid=$lpc.'.'.$token->[2]->{'to'}; |
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my $name=$token->[2]->{'name'}; |
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my $part; |
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if ($name=~/^parameter_(.*)_/) { |
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$part=$1; |
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} else { |
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$part=0; |
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} |
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$name=~s/^.*_([^_]*)$/$1/; |
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my $newparam= |
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&escape($token->[2]->{'type'}).':'. |
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&escape($part.'.'.$name).'='. |
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&escape($token->[2]->{'value'}); |
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if (defined($hash{'param_'.$referid})) { |
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$hash{'param_'.$referid}.='&'.$newparam; |
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} else { |
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$hash{'param_'.$referid}=''.$newparam; |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*randompick$/) { |
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$randompick{$referid}=$token->[2]->{'value'}; |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*randompickseed$/) { |
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$randompickseed{$referid}=$token->[2]->{'value'}; |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*encrypturl$/) { |
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if ($token->[2]->{'value'}=~/^yes$/i) { |
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$encurl{$referid}=1; |
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} |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*hiddenresource$/) { |
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if ($token->[2]->{'value'}=~/^yes$/i) { |
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$hiddenurl{$referid}=1; |
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} |
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} |
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} |
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} |
$seed = $symb; |
} |
} |
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my $rndseed=&Apache::lonnet::rndseed($seed); |
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&Apache::lonnet::setup_random_from_rndseed($rndseed); |
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@map_ids=&Math::Random::random_permutation(@map_ids); |
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} |
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my $from = shift(@map_ids); |
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my $from_rid = $lpc.'.'.$from; |
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$hash{'map_start_'.$uri} = $from_rid; |
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$hash{'type_'.$from_rid}='start'; |
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} else { |
while (my $to = shift(@map_ids)) { |
$errtext.=&mt('<br />Map not loaded: The file <tt>[_1]</tt> does not exist.',$fn); |
&make_link(++$linkpc,$lpc,$to,$from); |
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my $to_rid = $lpc.'.'.$to; |
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$hash{'type_'.$to_rid}='normal'; |
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$from = $to; |
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$from_rid = $to_rid; |
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} |
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$hash{'map_finish_'.$uri}= $from_rid; |
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$hash{'type_'.$from_rid}='finish'; |
} |
} |
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my $parser = HTML::TokeParser->new(\$instr); |
$parser = HTML::TokeParser->new(\$instr); |
$parser->attr_encoded(1); |
$parser->attr_encoded(1); |
# last parse out the mapalias params so as to ignore anything |
# last parse out the mapalias params so as to ignore anything |
# refering to non-existant resources |
# refering to non-existant resources |
Line 330 sub loadmap {
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Line 239 sub loadmap {
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} |
} |
} |
} |
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# -------------------------------------------------------------------- Resource |
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sub parse_resource { |
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my ($token,$lpc,$ispage,$uri) = @_; |
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if ($token->[2]->{'type'} eq 'zombie') { next; } |
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my $rid=$lpc.'.'.$token->[2]->{'id'}; |
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$hash{'kind_'.$rid}='res'; |
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$hash{'title_'.$rid}=$token->[2]->{'title'}; |
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my $turi=&versiontrack($token->[2]->{'src'}); |
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if ($token->[2]->{'version'}) { |
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unless ($hash{'version_'.$turi}) { |
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$hash{'version_'.$turi}=$1; |
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} |
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} |
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my $title=$token->[2]->{'title'}; |
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$title=~s/\&colon\;/\:/gs; |
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# my $symb=&Apache::lonnet::encode_symb($uri, |
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# $token->[2]->{'id'}, |
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# $turi); |
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# &Apache::lonnet::do_cache_new('title',$symb,$title); |
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unless ($ispage) { |
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$turi=~/\.(\w+)$/; |
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my $embstyle=&Apache::loncommon::fileembstyle($1); |
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if ($token->[2]->{'external'} eq 'true') { # external |
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$turi=~s/^https?\:\/\//\/adm\/wrapper\/ext\//; |
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} elsif ($turi=~/^\/*uploaded\//) { # uploaded |
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if (($embstyle eq 'img') |
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|| ($embstyle eq 'emb') |
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|| ($embstyle eq 'wrp')) { |
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$turi='/adm/wrapper'.$turi; |
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} elsif ($embstyle eq 'ssi') { |
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#do nothing with these |
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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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} elsif ($turi=~/\S/) { # normal non-empty internal resource |
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my $mapdir=$uri; |
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$mapdir=~s/[^\/]+$//; |
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$turi=&Apache::lonnet::hreflocation($mapdir,$turi); |
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if (($embstyle eq 'img') |
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|| ($embstyle eq 'emb') |
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|| ($embstyle eq 'wrp')) { |
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$turi='/adm/wrapper'.$turi; |
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} |
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} |
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} |
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# Store reverse lookup, remove query string |
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my $idsuri=$turi; |
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$idsuri=~s/\?.+$//; |
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if (defined($hash{'ids_'.$idsuri})) { |
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$hash{'ids_'.$idsuri}.=','.$rid; |
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} else { |
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$hash{'ids_'.$idsuri}=''.$rid; |
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} |
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if ($turi=~/\/(syllabus|aboutme|navmaps|smppg|bulletinboard|viewclasslist)$/) { |
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$turi.='?register=1'; |
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} |
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$hash{'src_'.$rid}=$turi; |
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if ($token->[2]->{'external'} eq 'true') { |
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$hash{'ext_'.$rid}='true:'; |
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} else { |
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$hash{'ext_'.$rid}='false:'; |
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} |
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if ($token->[2]->{'type'}) { |
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$hash{'type_'.$rid}=$token->[2]->{'type'}; |
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if ($token->[2]->{'type'} eq 'start') { |
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$hash{'map_start_'.$uri}="$rid"; |
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} |
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if ($token->[2]->{'type'} eq 'finish') { |
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$hash{'map_finish_'.$uri}="$rid"; |
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} |
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} else { |
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$hash{'type_'.$rid}='normal'; |
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} |
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if (($turi=~/\.sequence$/) || |
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($turi=~/\.page$/)) { |
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$hash{'is_map_'.$rid}=1; |
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&loadmap($turi,$rid); |
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} |
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return $token->[2]->{'id'}; |
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} |
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sub make_link { |
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my ($linkpc,$lpc,$to,$from,$condition) = @_; |
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my $linkid=$lpc.'.'.$linkpc; |
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my $goesto=$lpc.'.'.$to; |
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my $comesfrom=$lpc.'.'.$from; |
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my $undercond=0; |
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if ($condition) { |
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$undercond=$lpc.'.'.$condition; |
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} |
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$hash{'goesto_'.$linkid}=$goesto; |
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$hash{'comesfrom_'.$linkid}=$comesfrom; |
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$hash{'undercond_'.$linkid}=$undercond; |
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if (defined($hash{'to_'.$comesfrom})) { |
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$hash{'to_'.$comesfrom}.=','.$linkid; |
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} else { |
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$hash{'to_'.$comesfrom}=''.$linkid; |
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} |
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if (defined($hash{'from_'.$goesto})) { |
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$hash{'from_'.$goesto}.=','.$linkid; |
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} else { |
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$hash{'from_'.$goesto}=''.$linkid; |
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} |
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} |
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# ------------------------------------------------------------------- Condition |
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sub parse_condition { |
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my ($token,$lpc) = @_; |
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my $rid=$lpc.'.'.$token->[2]->{'id'}; |
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$hash{'kind_'.$rid}='cond'; |
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my $condition = $token->[2]->{'value'}; |
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$condition =~ s/[\n\r]+/ /gs; |
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push(@cond, $condition); |
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$hash{'condid_'.$rid}=$#cond; |
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if ($token->[2]->{'type'}) { |
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$cond[$#cond].=':'.$token->[2]->{'type'}; |
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} else { |
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$cond[$#cond].=':normal'; |
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} |
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} |
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# ------------------------------------------------------------------- Parameter |
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sub parse_param { |
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my ($token,$lpc) = @_; |
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my $referid=$lpc.'.'.$token->[2]->{'to'}; |
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my $name=$token->[2]->{'name'}; |
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my $part; |
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if ($name=~/^parameter_(.*)_/) { |
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$part=$1; |
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} else { |
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$part=0; |
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} |
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$name=~s/^.*_([^_]*)$/$1/; |
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my $newparam= |
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&escape($token->[2]->{'type'}).':'. |
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&escape($part.'.'.$name).'='. |
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&escape($token->[2]->{'value'}); |
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if (defined($hash{'param_'.$referid})) { |
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$hash{'param_'.$referid}.='&'.$newparam; |
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} else { |
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$hash{'param_'.$referid}=''.$newparam; |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*randompick$/) { |
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$randompick{$referid}=$token->[2]->{'value'}; |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*randompickseed$/) { |
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$randompickseed{$referid}=$token->[2]->{'value'}; |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*randomorder$/) { |
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$randomorder{$referid}=$token->[2]->{'value'}; |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*encrypturl$/) { |
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if ($token->[2]->{'value'}=~/^yes$/i) { |
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$encurl{$referid}=1; |
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} |
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} |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*hiddenresource$/) { |
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if ($token->[2]->{'value'}=~/^yes$/i) { |
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$hiddenurl{$referid}=1; |
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} |
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} |
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} |
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sub parse_mapalias_param { |
sub parse_mapalias_param { |
my ($token,$lpc) = @_; |
my ($token,$lpc) = @_; |
my $referid=$lpc.'.'.$token->[2]->{'to'}; |
my $referid=$lpc.'.'.$token->[2]->{'to'}; |
return if (!exists($hash{'src_'.$referid})); |
return if (!exists($hash{'src_'.$referid})); |
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if ($token->[2]->{'name'}=~/^parameter_(0_)*mapalias$/) { |
if ($token->[2]->{'name'}=~/^parameter_(0_)*mapalias$/) { |
|
&count_mapalias($token->[2]->{'value'},$referid); |
$hash{'mapalias_'.$token->[2]->{'value'}}=$referid; |
$hash{'mapalias_'.$token->[2]->{'value'}}=$referid; |
} |
} |
} |
} |
Line 351 sub simplify {
|
Line 437 sub simplify {
|
# 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\&$3/g; |
# (((5&3)|(4&6)))=((5&3)|(4&6)) |
# (((5&3)|(4&6)))=((5&3)|(4&6)) |
Line 402 sub traceroute {
|
Line 488 sub traceroute {
|
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
$sofar=$newsofar= |
$sofar=$newsofar= |
&traceroute($sofar, |
&traceroute($sofar, |
$hash{'map_start_'.$hash{'src_'.$rid}},'&', |
$hash{'map_start_'.$hash{'src_'.$rid}}, |
|
$beenhere, |
$encflag || $encurl{$rid}, |
$encflag || $encurl{$rid}, |
$hdnflag || $hiddenurl{$rid}); |
$hdnflag || $hiddenurl{$rid}); |
} |
} |
Line 503 sub accinit {
|
Line 590 sub accinit {
|
$acchash{'acc.res.'.$short.'.'}='&:0&'; |
$acchash{'acc.res.'.$short.'.'}='&:0&'; |
my $courseuri=$uri; |
my $courseuri=$uri; |
$courseuri=~s/^\/res\///; |
$courseuri=~s/^\/res\///; |
&Apache::lonnet::delenv('(acc\.|httpref\.)'); |
my $regexp = 1; |
&Apache::lonnet::appenv(%acchash); |
&Apache::lonnet::delenv('(acc\.|httpref\.)',$regexp); |
|
&Apache::lonnet::appenv(\%acchash); |
} |
} |
|
|
# ---------------- Selectively delete from randompick maps and hidden url parms |
# ---------------- Selectively delete from randompick maps and hidden url parms |
Line 560 sub hiddenurls {
|
Line 648 sub hiddenurls {
|
} |
} |
# --------------------------------------- append randomout entry to environment |
# --------------------------------------- append randomout entry to environment |
if ($randomoutentry) { |
if ($randomoutentry) { |
&Apache::lonnet::appenv('acc.randomout' => $randomoutentry); |
&Apache::lonnet::appenv({'acc.randomout' => $randomoutentry}); |
} |
} |
} |
} |
|
|
Line 574 sub readmap {
|
Line 662 sub readmap {
|
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 $short.</font>"); |
return ('',&mt('No course data available.'));; |
return ('',&mt('No course data available.'));; |
} |
} |
@cond=('true:normal'); |
@cond=('true:normal'); |
|
|
open(LOCKFILE,">$fn.db.lock"); |
unless (open(LOCKFILE,">$fn.db.lock")) { |
|
$errtext.='<br />'.&mt('Map not loaded - Lock file could not be opened when reading map:').' <tt>'.$fn.'</tt>.'; |
|
$retfurl = ''; |
|
return ($retfurl,$errtext); |
|
} |
my $lock=0; |
my $lock=0; |
|
my $gotstate=0; |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB)) { |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB)) { |
$lock=1; |
$lock=1; |
unlink($fn.'.db'); |
&unlink_tmpfiles($fn); |
unlink($fn.'_symb.db'); |
|
unlink($fn.'.state'); |
|
unlink($fn.'parms.db'); |
|
} |
} |
undef %randompick; |
undef %randompick; |
undef %hiddenurl; |
undef %hiddenurl; |
undef %encurl; |
undef %encurl; |
$retfrid=''; |
$retfrid=''; |
if ($lock && (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
my ($untiedhash,$untiedparmhash,$tiedhash,$tiedparmhash); |
(tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { |
if ($lock) { |
%hash=(); |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) { |
%parmhash=(); |
$tiedhash = 1; |
$errtext=''; |
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640)) { |
$pc=0; |
$tiedparmhash = 1; |
&processversionfile(%cenv); |
$gotstate = &build_tmp_hashes($uri,$fn,$short,\%cenv); |
my $furi=&Apache::lonnet::clutter($uri); |
unless ($gotstate) { |
$hash{'src_0.0'}=&versiontrack($furi); |
&Apache::lonnet::logthis('Failed to write statemap at first attempt '.$fn.' for '.$uri.'.</font>'); |
$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
} |
$hash{'ids_'.$furi}='0.0'; |
$untiedparmhash = untie(%parmhash); |
$hash{'is_map_0.0'}=1; |
unless ($untiedparmhash) { |
loadmap($uri); |
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
if (defined($hash{'map_start_'.$uri})) { |
'Could not untie coursemap parmhash '.$fn.' for '.$uri.'.</font>'); |
&Apache::lonnet::appenv("request.course.id" => $short, |
} |
"request.course.fn" => $fn, |
} |
"request.course.uri" => $uri); |
$untiedhash = untie(%hash); |
$env{'request.course.id'}=$short; |
unless ($untiedhash) { |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
&accinit($uri,$short,$fn); |
'Could not untie coursemap hash '.$fn.' for '.$uri.'.</font>'); |
&hiddenurls(); |
} |
} |
} |
# ------------------------------------------------------- Put versions into src |
|
foreach my $key (keys(%hash)) { |
|
if ($key=~/^src_/) { |
|
$hash{$key}=&putinversion($hash{$key}); |
|
} elsif ($key =~ /^(map_(?:start|finish|pc)_)(.*)/) { |
|
my ($type, $url) = ($1,$2); |
|
my $value = $hash{$key}; |
|
$hash{$type.&putinversion($url)}=$value; |
|
} |
|
} |
|
# ---------------------------------------------------------------- Encrypt URLs |
|
foreach my $id (keys(%encurl)) { |
|
# $hash{'src_'.$id}=&Apache::lonenc::encrypted($hash{'src_'.$id}); |
|
$hash{'encrypted_'.$id}=1; |
|
} |
|
# ----------------------------------------------- Close hashes to finally store |
|
# --------------------------------- Routine must pass this point, no early outs |
|
$hash{'first_rid'}=$retfrid; |
|
my ($mapid,$resid)=split(/\./,$retfrid); |
|
$hash{'first_mapurl'}=$hash{'map_id_'.$mapid}; |
|
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$retfrid}); |
|
$retfurl=&add_get_param($hash{'src_'.$retfrid},{ 'symb' => $symb }); |
|
if ($hash{'encrypted_'.$retfrid}) { |
|
$retfurl=&Apache::lonenc::encrypted($retfurl,(&Apache::lonnet::allowed('adv') ne 'F')); |
|
} |
|
$hash{'first_url'}=$retfurl; |
|
unless ((untie(%hash)) && (untie(%parmhash))) { |
|
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
|
"Could not untie coursemap $fn for $uri.</font>"); |
|
} |
|
# ---------------------------------------------------- Store away initial state |
|
{ |
|
my $cfh; |
|
if (open($cfh,">$fn.state")) { |
|
print $cfh join("\n",@cond); |
|
} else { |
|
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
|
"Could not write statemap $fn for $uri.</font>"); |
|
} |
|
} |
|
flock(LOCKFILE,LOCK_UN); |
flock(LOCKFILE,LOCK_UN); |
close(LOCKFILE); |
} |
} else { |
unless ($lock && $tiedhash && $tiedparmhash) { |
# if we are here it is likely because we are already trying to |
# if we are here it is likely because we are already trying to |
# initialize the course in another child, busy wait trying to |
# initialize the course in another child, busy wait trying to |
# tie the hashes for the next 90 seconds, if we succeed forward |
# tie the hashes for the next 90 seconds, if we succeed forward |
Line 666 sub readmap {
|
Line 716 sub readmap {
|
if ($lock) { |
if ($lock) { |
# Got the lock but not the DB files |
# Got the lock but not the DB files |
flock(LOCKFILE,LOCK_UN); |
flock(LOCKFILE,LOCK_UN); |
|
$lock = 0; |
} |
} |
untie(%hash); |
if ($tiedhash) { |
untie(%parmhash); |
unless($untiedhash) { |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
untie(%hash); |
"Could not tie coursemap $fn for $uri.</font>"); |
} |
|
} |
|
if ($tiedparmhash) { |
|
unless($untiedparmhash) { |
|
untie(%parmhash); |
|
} |
|
} |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
"Could not tie coursemap $fn for $uri.</font>"); |
|
$tiedhash = ''; |
|
$tiedparmhash = ''; |
my $i=0; |
my $i=0; |
while($i<90) { |
while($i<90) { |
$i++; |
$i++; |
sleep(1); |
sleep(1); |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB) && |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB)) { |
(tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640))) { |
$lock = 1; |
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) { |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) { |
$retfurl='/adm/navmaps'; |
$tiedhash = 1; |
&Apache::lonnet::appenv("request.course.id" => $short, |
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) { |
"request.course.fn" => $fn, |
$tiedparmhash = 1; |
"request.course.uri" => $uri); |
if (-e "$fn.state") { |
untie(%hash); |
$retfurl='/adm/navmaps'; |
untie(%parmhash); |
&Apache::lonnet::appenv({"request.course.id" => $short, |
last; |
"request.course.fn" => $fn, |
} |
"request.course.uri" => $uri}); |
} |
$untiedhash = untie(%hash); |
untie(%hash); |
$untiedparmhash = untie(%parmhash); |
untie(%parmhash); |
$gotstate = 1; |
|
last; |
|
} |
|
$untiedparmhash = untie(%parmhash); |
|
} |
|
$untiedhash = untie(%hash); |
|
} |
|
} |
} |
} |
flock(LOCKFILE,LOCK_UN); |
if ($lock) { |
close(LOCKFILE); |
flock(LOCKFILE,LOCK_UN); |
|
$lock = 0; |
|
if ($tiedparmhash) { |
|
unless ($untiedparmhash) { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not untie coursemap parmhash '.$fn.' for '.$uri.'.</font>'); |
|
} |
|
} |
|
if ($tiedparmhash) { |
|
unless ($untiedhash) { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not untie coursemap hash '.$fn.' for '.$uri.'.</font>'); |
|
} |
|
} |
|
} |
|
} |
|
unless ($gotstate) { |
|
$lock = 0; |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not read statemap '.$fn.' for '.$uri.'.</font>'); |
|
&unlink_tmpfiles($fn); |
|
if (flock(LOCKFILE,LOCK_EX|LOCK_NB)) { |
|
$lock=1; |
|
} |
|
undef %randompick; |
|
undef %hiddenurl; |
|
undef %encurl; |
|
$retfrid=''; |
|
if ($lock) { |
|
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) { |
|
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640)) { |
|
$gotstate = &build_tmp_hashes($uri,$fn,$short,\%cenv); |
|
unless ($gotstate) { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Failed to write statemap at second attempt '.$fn.' for '.$uri.'.</font>'); |
|
} |
|
unless (untie(%parmhash)) { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not untie coursemap parmhash '.$fn.'.db for '.$uri.'.</font>'); |
|
} |
|
} else { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not tie coursemap '.$fn.'__parms.db for '.$uri.'.</font>'); |
|
} |
|
unless (untie(%hash)) { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not untie coursemap hash '.$fn.'.db for '.$uri.'.</font>'); |
|
} |
|
} else { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not tie coursemap '.$fn.'.db for '.$uri.'.</font>'); |
|
} |
|
flock(LOCKFILE,LOCK_UN); |
|
$lock = 0; |
|
} else { |
|
&Apache::lonnet::logthis('<font color="blue">WARNING: '. |
|
'Could not obtain lock to tie coursemap hash '.$fn.'.db for '.$uri.'.</font>'); |
|
} |
|
} |
|
close(LOCKFILE); |
|
unless (($errtext eq '') || ($env{'request.course.uri'} =~ m{^/uploaded/})) { |
|
&Apache::lonmsg::author_res_msg($env{'request.course.uri'}, |
|
$errtext); |
} |
} |
&Apache::lonmsg::author_res_msg($env{'request.course.uri'},$errtext); |
|
# ------------------------------------------------- Check for critical messages |
# ------------------------------------------------- Check for critical messages |
|
|
my @what=&Apache::lonnet::dump('critical',$env{'user.domain'}, |
my @what=&Apache::lonnet::dump('critical',$env{'user.domain'}, |
Line 706 sub readmap {
|
Line 835 sub readmap {
|
return ($retfurl,$errtext); |
return ($retfurl,$errtext); |
} |
} |
|
|
|
sub build_tmp_hashes { |
|
my ($uri,$fn,$short,$cenvref) = @_; |
|
unless(ref($cenvref) eq 'HASH') { |
|
return; |
|
} |
|
my %cenv = %{$cenvref}; |
|
my $gotstate = 0; |
|
%hash=(); |
|
%parmhash=(); |
|
$errtext=''; |
|
$pc=0; |
|
&clear_mapalias_count(); |
|
&processversionfile(%cenv); |
|
my $furi=&Apache::lonnet::clutter($uri); |
|
$hash{'src_0.0'}=&versiontrack($furi); |
|
$hash{'title_0.0'}=&Apache::lonnet::metadata($uri,'title'); |
|
$hash{'ids_'.$furi}='0.0'; |
|
$hash{'is_map_0.0'}=1; |
|
&loadmap($uri,'0.0'); |
|
if (defined($hash{'map_start_'.$uri})) { |
|
&Apache::lonnet::appenv({"request.course.id" => $short, |
|
"request.course.fn" => $fn, |
|
"request.course.uri" => $uri}); |
|
$env{'request.course.id'}=$short; |
|
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
|
&accinit($uri,$short,$fn); |
|
&hiddenurls(); |
|
} |
|
$errtext .= &get_mapalias_errors(); |
|
# ------------------------------------------------------- Put versions into src |
|
foreach my $key (keys(%hash)) { |
|
if ($key=~/^src_/) { |
|
$hash{$key}=&putinversion($hash{$key}); |
|
} elsif ($key =~ /^(map_(?:start|finish|pc)_)(.*)/) { |
|
my ($type, $url) = ($1,$2); |
|
my $value = $hash{$key}; |
|
$hash{$type.&putinversion($url)}=$value; |
|
} |
|
} |
|
# ---------------------------------------------------------------- Encrypt URLs |
|
foreach my $id (keys(%encurl)) { |
|
# $hash{'src_'.$id}=&Apache::lonenc::encrypted($hash{'src_'.$id}); |
|
$hash{'encrypted_'.$id}=1; |
|
} |
|
# ----------------------------------------------- Close hashes to finally store |
|
# --------------------------------- Routine must pass this point, no early outs |
|
$hash{'first_rid'}=$retfrid; |
|
my ($mapid,$resid)=split(/\./,$retfrid); |
|
$hash{'first_mapurl'}=$hash{'map_id_'.$mapid}; |
|
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$retfrid}); |
|
$retfurl=&add_get_param($hash{'src_'.$retfrid},{ 'symb' => $symb }); |
|
if ($hash{'encrypted_'.$retfrid}) { |
|
$retfurl=&Apache::lonenc::encrypted($retfurl,(&Apache::lonnet::allowed('adv') ne 'F')); |
|
} |
|
$hash{'first_url'}=$retfurl; |
|
# ---------------------------------------------------- Store away initial state |
|
{ |
|
my $cfh; |
|
if (open($cfh,">$fn.state")) { |
|
print $cfh join("\n",@cond); |
|
$gotstate = 1; |
|
} else { |
|
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
|
"Could not write statemap $fn for $uri.</font>"); |
|
} |
|
} |
|
return $gotstate; |
|
} |
|
|
|
sub unlink_tmpfiles { |
|
my ($fn) = @_; |
|
if ($fn =~ m{^\Q$Apache::lonnet::perlvar{'lonDaemons'}\E/tmp/}) { |
|
my @files = qw (.db _symb.db .state _parms.db); |
|
foreach my $file (@files) { |
|
if (-e $fn.$file) { |
|
unless (unlink($fn.$file)) { |
|
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
|
"Could not unlink ".$fn.$file."</font>"); |
|
} |
|
} |
|
} |
|
} |
|
return; |
|
} |
|
|
# ------------------------------------------------------- Evaluate state string |
# ------------------------------------------------------- Evaluate state string |
|
|
sub evalstate { |
sub evalstate { |
Line 742 sub evalstate {
|
Line 956 sub evalstate {
|
} |
} |
} |
} |
} |
} |
&Apache::lonnet::appenv('user.state.'.$env{'request.course.id'} => $state); |
&Apache::lonnet::appenv({'user.state.'.$env{'request.course.id'} => $state}); |
return $state; |
return $state; |
} |
} |
|
|
|
{ |
|
my %mapalias_cache; |
|
sub count_mapalias { |
|
my ($value,$resid) = @_; |
|
push(@{ $mapalias_cache{$value} }, $resid); |
|
} |
|
|
|
sub get_mapalias_errors { |
|
my $error_text; |
|
foreach my $mapalias (sort(keys(%mapalias_cache))) { |
|
next if (scalar(@{ $mapalias_cache{$mapalias} } ) == 1); |
|
my $count; |
|
my $which = |
|
join('</li><li>', |
|
map { |
|
my $id = $_; |
|
if (exists($hash{'src_'.$id})) { |
|
$count++; |
|
} |
|
my ($mapid) = split(/\./,$id); |
|
&mt('Resource "[_1]" <br /> in Map "[_2]"', |
|
$hash{'title_'.$id}, |
|
$hash{'title_'.$hash{'ids_'.$hash{'map_id_'.$mapid}}}); |
|
} (@{ $mapalias_cache{$mapalias} })); |
|
next if ($count < 2); |
|
$error_text .= '<div class="LC_error">'. |
|
&mt('Error: Found the mapalias "[_1]" defined multiple times.', |
|
$mapalias). |
|
'</div><ul><li>'.$which.'</li></ul>'; |
|
} |
|
&clear_mapalias_count(); |
|
return $error_text; |
|
} |
|
sub clear_mapalias_count { |
|
undef(%mapalias_cache); |
|
} |
|
} |
1; |
1; |
__END__ |
__END__ |
|
|
Line 768 of course for user.
|
Line 1019 of course for user.
|
This is part of the LearningOnline Network with CAPA project |
This is part of the LearningOnline Network with CAPA project |
described at http://www.lon-capa.org. |
described at http://www.lon-capa.org. |
|
|
=head1 HANDLER SUBROUTINE |
=head1 SUBROUTINES |
|
|
There is no handler subroutine. |
|
|
|
=head1 OTHER SUBROUTINES |
|
|
|
=over 4 |
=over |
|
|
=item * |
=item loadmap() |
|
|
loadmap() : Loads map from disk |
Loads map from disk |
|
|
=item * |
=item simplify() |
|
|
simplify() : Simplify expression |
Simplify expression |
|
|
=item * |
=item traceroute() |
|
|
traceroute() : Build condition hash |
Build condition hash |
|
|
=item * |
=item accinit() |
|
|
accinit() : Cascading conditions, quick access, parameters |
Cascading conditions, quick access, parameters |
|
|
=item * |
=item readmap() |
|
|
readmap() : Read map and all submaps |
Read map and all submaps |
|
|
=item * |
=item evalstate() |
|
|
evalstate() : Evaluate state string |
Evaluate state string |
|
|
=back |
=back |
|
|