version 1.175, 2001/11/20 22:40:53
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version 1.178, 2001/11/29 18:54:16
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# The LearningOnline Network |
# The LearningOnline Network |
# TCP networking package |
# TCP networking package |
# |
# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
# 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30, |
# 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30, |
# 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19, |
# 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19, |
# 11/8,11/16,11/18,11/22,11/23,12/22, |
# 11/8,11/16,11/18,11/22,11/23,12/22, |
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# 8/4,8/7,8/8,8/9,8/11,8/16,8/17,8/18,8/20,8/23,9/20,9/21,9/26, |
# 8/4,8/7,8/8,8/9,8/11,8/16,8/17,8/18,8/20,8/23,9/20,9/21,9/26, |
# 10/2 Gerd Kortemeyer |
# 10/2 Gerd Kortemeyer |
# 10/5,10/10,11/13,11/15 Scott Harrison |
# 10/5,10/10,11/13,11/15 Scott Harrison |
# 11/17,11/20 Gerd Kortemeyer |
# 11/17,11/20,11/22 Gerd Kortemeyer |
# |
# |
# $Id$ |
# $Id$ |
# |
# |
Line 2232 sub EXT {
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Line 2256 sub EXT {
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# ---------------------------------------------------------------- Get metadata |
# ---------------------------------------------------------------- Get metadata |
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sub metadata { |
sub metadata { |
my ($uri,$what,$liburi,$prefix)=@_; |
my ($uri,$what,$liburi,$prefix,$depthcount)=@_; |
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$uri=&declutter($uri); |
$uri=&declutter($uri); |
my $filename=$uri; |
my $filename=$uri; |
$uri=~s/\.meta$//; |
$uri=~s/\.meta$//; |
# |
# |
# Is the metadata already cached? |
# Is the metadata already cached? |
# If "keys" are set, the assumption is that everything is already cached. |
# Look at timestamp of caching |
# Everything is cached by the main uri, libraries are never directly cached |
# Everything is cached by the main uri, libraries are never directly cached |
# |
# |
unless (abs($metacache{$uri.':cachedtimestamp'}-time)<600) { |
unless (abs($metacache{$uri.':cachedtimestamp'}-time)<600) { |
Line 2302 sub metadata {
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Line 2326 sub metadata {
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# This is not a package - some other kind of start tag |
# This is not a package - some other kind of start tag |
# |
# |
my $entry=$token->[1]; |
my $entry=$token->[1]; |
my $unikey=$entry; |
my $unikey; |
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if ($entry eq 'import') { |
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$unikey=''; |
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} else { |
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$unikey=$entry; |
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} |
if ($prefix) { |
if ($prefix) { |
$unikey.='_'.$prefix; |
$unikey.=$prefix; |
} else { |
} else { |
if (defined($token->[2]->{'part'})) { |
if (defined($token->[2]->{'part'})) { |
$unikey.='_'.$token->[2]->{'part'}; |
$unikey.='_'.$token->[2]->{'part'}; |
Line 2317 sub metadata {
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Line 2346 sub metadata {
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if ($entry eq 'import') { |
if ($entry eq 'import') { |
# |
# |
# Importing a library here |
# Importing a library here |
# |
# |
my $libid=$token->[2]->{'id'}; |
if (defined($depthcount)) { $depthcount++; } else |
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{ $depthcount=0; } |
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if ($depthcount<20) { |
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map { |
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$metathesekeys{$_}=1; |
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} split(/\,/,&metadata($uri,'keys', |
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$parser->get_text('/import'),$unikey, |
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$depthcount)); |
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} |
} else { |
} else { |
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if (defined($token->[2]->{'name'})) { |
if (defined($token->[2]->{'name'})) { |
Line 2344 sub metadata {
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Line 2379 sub metadata {
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} |
} |
$metacache{$uri.':keys'}=join(',',keys %metathesekeys); |
$metacache{$uri.':keys'}=join(',',keys %metathesekeys); |
$metacache{$uri.':cachedtimestamp'}=time; |
$metacache{$uri.':cachedtimestamp'}=time; |
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# this is the end of "was not already recently cached |
} |
} |
return $metacache{$uri.':'.$what}; |
return $metacache{$uri.':'.$what}; |
} |
} |