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    1: #!/usr/local/bin/perl
    2: 
    3: #
    4: # lon-capa.pl
    5: # Parse the LON-CAPA metadata
    6: #
    7: # Andy Dong <adong@smete.org> 10/23/2002
    8: #
    9: # Contact Gerd Kortemeyer (korte@lite.msu.edu)
   10: 
   11: use strict;
   12: use LWP::UserAgent;
   13: use Getopt::Std;
   14: use Digest::MD5 qw(md5_hex);
   15: use IO::File;
   16: 
   17: my $basepath='/home/httpd/cgi-bin/OAI-XMLFile/XMLFile/nsdlexport/data';
   18: 
   19: my $pub_month;
   20: my $pub_year;
   21: my @loncapa;
   22: 
   23: # HTTP requests
   24: 
   25: my $content;
   26: my $content_regex = 'File Not Found';
   27: 
   28: # Configuration
   29: 
   30: my $debug = 0;
   31: 
   32: # The list of servers is from the LON-CAPA CVS repository in /loncapa/loncom/production_hosts.tab
   33: my @servers = (
   34: 'newscience.westshore.cc.mi.us',
   35: 's10.lite.msu.edu',
   36: 's12.lite.msu.edu',
   37: 'lon-capa.chem.sunysb.edu',
   38: 'schubert.tmcc.edu',
   39: 'dalton.chem.sfu.ca',
   40: 'capa2.phy.ohiou.edu',
   41: 'pollux.physics.fsu.edu',
   42: 'loncapa.physics.sc.edu',
   43: 'loncapa.math.ucf.edu',
   44: 'zappa.ags.udel.edu',
   45: 'loncapa.gwu.edu',
   46: 'neptune.physics.ndsu.nodak.edu',
   47: 'capa1.uwsp.edu');
   48: 
   49: foreach (@servers) {
   50:     my $url='http://'.$_.'/cgi-bin/metadata_harvest.pl';
   51: # End Configuration
   52: 
   53: my $ua = new LWP::UserAgent;
   54: $ua->timeout(600);
   55: 
   56: my $request = new HTTP::Request GET => $url;
   57: $request->authorization_basic('reaper', 'cat4u');
   58: 
   59: my $response = $ua->request( $request );
   60: 
   61: if ( $response->is_success ) {
   62:      print 'SUCCESS: ' . $response->message.' for '.$url."\n\n";
   63: 	$content = $response->content;
   64: # Delete all blank lines
   65: 	$content =~ s/(?<!.)\n//g;
   66: # Replace all ^M with spaces
   67: 	$content =~ s/
/\s/g;
   68: # Push the content into an array
   69: 	@loncapa = split /\n/, $content;
   70: } else {
   71:      print 'LON-CAPA request failed: ' . $response->message.' for '.$url."\n\n";
   72:      next;
   73: }
   74: 
   75: #@loncapa=undef;
   76: #open (LON_FILE, 'metadata_harvest.txt') || die;
   77: 
   78: #while (<LON_FILE>) {
   79: #       chomp;
   80: #       push(@loncapa,$_);
   81: #}
   82: 
   83: my %records = ();;
   84: 
   85: foreach my $metadata (@loncapa) {
   86: 	chomp $metadata;
   87: 	$metadata=~s/[^\w\d\s\.\;\:\,\|\/]/ /gs;
   88: 	my @tkline = split('\|', $metadata);
   89: 	my $title = $tkline[0];
   90: 	next if ( $title eq '' );
   91: 	my $author = $tkline[1];
   92: 	next if ( $author eq '' );
   93: 	my @authorname = split(' ', $author);
   94: 	my $author_fname = $authorname[0];
   95: 	my $author_lname = $authorname[1];
   96: 	# We have to make an exception for Multimedia Physics which is an organization not a person
   97: 	my $object_type;
   98: 	if ( $author_lname eq 'Physics' ) {
   99: 		$object_type = 'organization';
  100: 	} else {
  101: 		$object_type = 'person';
  102: 	}
  103: 	my $subject = $tkline[2];
  104: 	next if ( ($subject eq 'Sample') || ($subject eq 'Something') );
  105: 	my $resourceurl = 'http://nsdl.lon-capa.org' . $tkline[3];
  106:         my $baseid=$tkline[3];
  107: 	my ($adom,$auname)=($baseid=~/^\/res\/(\w+)\/(\w+)\//);
  108: 	$baseid=~s/\W/\_/g;
  109: 	$baseid=~s/^\_res\_//g;
  110: 	my $fileid=md5_hex($baseid);
  111: 
  112: 	next if ( $resourceurl =~ /(.*)\/demo\/(.*)/ );
  113: 	my $keywords = $tkline[4];
  114: 	my $version = $tkline[5];
  115: 	my $notes = $tkline[6];
  116: 	my $abstract = $tkline[7];
  117: 	next if ($abstract eq '');
  118: 	my $type = $tkline[8];
  119: 	my $learning_resource_type;
  120: 	if ( $type eq 'problem' ) {
  121: 		$learning_resource_type = 114;
  122: 	} elsif ( $type eq 'exam' ) {
  123: 		$learning_resource_type = 114;
  124: 	} elsif ( $type eq 'quiz' ) {
  125: 		$learning_resource_type = 114;
  126: 	} elsif ( $type eq 'assess' ) {
  127: 		$learning_resource_type = 114;
  128: 	} elsif ( $type eq 'survey' ) {
  129: 		$learning_resource_type = 114;
  130: 	} elsif ( $type eq 'form' ) {
  131: 		$learning_resource_type = 114;
  132: 	} elsif ( $type eq 'library' ) {
  133: 		$learning_resource_type = 107;
  134: 	} elsif ( $type eq 'page' ) {
  135: 		$learning_resource_type = 104;
  136: 	} elsif ( $type eq 'sequence' ) {
  137: 		$learning_resource_type = 104;
  138: 	} elsif ( $type eq 'spreadsheet' ) {
  139: 		$learning_resource_type = 114;
  140: 	} else {
  141: 		$learning_resource_type = 0;
  142: 	}
  143: 	
  144: 	my $media_format;
  145: 	if ( ($type eq 'htm') || ($type eq 'gif') || ($type eq 'mov') || ($type eq 'xml') ) {
  146: 		$media_format = 70;
  147: 	} else {
  148: 		$media_format = 0;
  149: 	}
  150: 
  151: 	my $language = $tkline[9]; # Look only for seniso
  152: 	next if ( $language ne 'seniso');
  153: 	my $primary_language='en-US';
  154: 	my $creation_date = $tkline[10];
  155: 	my ($pub_year,$pub_month,$pub_day) = ( $creation_date =~ /^(\d{4}) (\d{2}) (\d{2})\s(\d{2}):(\d{2}):(\d{2})$/ );
  156: 	my $revision_date = $tkline[11];
  157: 	my ($rev_year,$rev_month,$rev_day) = ( $revision_date =~ /^(\d{4}) (\d{2}) (\d{2})\s(\d{2}):(\d{2}):(\d{2})$/ );
  158: 	my $owner = $tkline[12];
  159: 	my $rights_description;
  160: 	my $copyright = $tkline[13]; # public,domain,default,private (skip if private and domain)
  161: 	# Public means no login required
  162: 
  163: 	if ( $copyright eq 'public' ) {
  164: 		$rights_description = 'LON-CAPA Public Resource. No login required.';
  165: 	} elsif ($copyright eq 'domain') {
  166: 		$rights_description = 'Restricted to certain LON-CAPA domains.';
  167: 	} else {
  168: 		$rights_description = 'LON-CAPA Default Use Restriction. Login required.';
  169: 	}
  170: 	# Domain means restricted to a particular LON-CAPA domain
  171: 	# Defaults mean access open to any registered LON-CAPA user
  172: 	# Private means open only to author of material
  173: 	next if ( $copyright eq 'private');
  174: 	my $platform = "5";     # HTML Browser (not specified but construed from metadata)
  175: #
  176: # Create path
  177: #
  178: 	unless (-e $basepath.'/'.$adom) { mkdir($basepath.'/'.$adom); }
  179: 	unless (-e $basepath.'/'.$adom.'/'.$auname) { 
  180: 	    mkdir($basepath.'/'.$adom.'/'.$auname) || die 'Could not create '.$basepath.'/'.$adom.'/'.$auname;
  181: 	}
  182: 	open(XML,'>'.$basepath.'/'.$adom.'/'.$auname.'/'.$baseid.'.xml');
  183: 	print XML (<<ENDMETA);
  184: <?xml version="1.0" encoding="UTF-8"?>
  185: 
  186: <oaidc:dc xmlns="http://purl.org/dc/elements/1.1/" 
  187:           xmlns:oaidc="http://www.openarchives.org/OAI/2.0/oai_dc/" 
  188:           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  189:           xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ 
  190:                               http://www.openarchives.org/OAI/2.0/oai_dc.xsd"
  191: >
  192:     <title>$title</title>
  193:     <creator>$author_fname $author_lname</creator>
  194:     <identifier>$resourceurl</identifier>
  195:     <subject>$keywords</subject>
  196:     <subject>$subject</subject>
  197:     <language>$primary_language</language>
  198:     <description>$abstract</description>
  199:     <date>$rev_year-$rev_month-$rev_day</date>
  200: </oaidc:dc>
  201: ENDMETA
  202:       close (XML);
  203: }
  204: }