Annotation of nsdl/nsdlloncapaorg/harvester.pl, revision 1.9
1.1 www 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;
1.2 www 14: use Digest::MD5 qw(md5_hex);
1.4 www 15: use IO::File;
16:
17: my $basepath='/home/httpd/cgi-bin/OAI-XMLFile/XMLFile/nsdlexport/data';
1.1 www 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;
1.5 www 31:
1.8 www 32: # Stats
33: my %allstats=();
34: my %filterstats=();
35: my %knockout=();
36: my %knockoutlang=();
37:
1.1 www 38: # The list of servers is from the LON-CAPA CVS repository in /loncapa/loncom/production_hosts.tab
1.5 www 39: my @servers = (
1.8 www 40: 'newscience.westshore.edu',
1.5 www 41: 's10.lite.msu.edu',
42: 's12.lite.msu.edu',
43: 'schubert.tmcc.edu',
44: 'dalton.chem.sfu.ca',
45: 'capa2.phy.ohiou.edu',
46: 'pollux.physics.fsu.edu',
1.8 www 47: 'loncapa3.physics.sc.edu',
1.5 www 48: 'zappa.ags.udel.edu',
49: 'loncapa.gwu.edu',
50: 'neptune.physics.ndsu.nodak.edu',
1.6 www 51: 'capa1.uwsp.edu',
52: 'loncapa.Mines.EDU',
1.8 www 53: 'loncapa.chm.nau.edu',
54: 'library1.lon-capa.uiuc.edu',
55: 'lon-capa.bsu.edu',
56: 'psblnx03.bd.psu.edu',
57: 'lon-capa.acadiau.ca',
58: 'harvard.lon-capa.org',
59: 'capa1.cc.huji.ac.il',
60: 'lon-capa.phy.cmich.edu',
61: 'meitner.physics.hope.edu',
62: 'loncapa.vcu.edu',
63: 'lon-capa.ucsc.edu',
1.9 ! www 64: 'lon-capa.bsu.edu',
! 65: 'harvard.lon-capa.org'
1.8 www 66: );
1.1 www 67:
1.5 www 68: foreach (@servers) {
69: my $url='http://'.$_.'/cgi-bin/metadata_harvest.pl';
1.1 www 70: # End Configuration
71:
1.2 www 72: my $ua = new LWP::UserAgent;
73: $ua->timeout(600);
1.1 www 74:
1.2 www 75: my $request = new HTTP::Request GET => $url;
76: $request->authorization_basic('reaper', 'cat4u');
1.1 www 77:
1.2 www 78: my $response = $ua->request( $request );
1.1 www 79:
1.2 www 80: if ( $response->is_success ) {
1.5 www 81: print 'SUCCESS: ' . $response->message.' for '.$url."\n\n";
1.2 www 82: $content = $response->content;
1.1 www 83: # Delete all blank lines
1.2 www 84: $content =~ s/(?<!.)\n//g;
1.1 www 85: # Replace all ^M with spaces
1.2 www 86: $content =~ s/
/\s/g;
1.1 www 87: # Push the content into an array
1.2 www 88: @loncapa = split /\n/, $content;
89: } else {
1.5 www 90: print 'LON-CAPA request failed: ' . $response->message.' for '.$url."\n\n";
91: next;
1.2 www 92: }
1.1 www 93:
1.2 www 94: #@loncapa=undef;
95: #open (LON_FILE, 'metadata_harvest.txt') || die;
1.1 www 96:
1.2 www 97: #while (<LON_FILE>) {
98: # chomp;
99: # push(@loncapa,$_);
100: #}
1.1 www 101:
102: my %records = ();;
1.3 www 103:
1.8 www 104: my %stats=();
105:
1.1 www 106: foreach my $metadata (@loncapa) {
107: chomp $metadata;
1.2 www 108: $metadata=~s/[^\w\d\s\.\;\:\,\|\/]/ /gs;
1.1 www 109: my @tkline = split('\|', $metadata);
1.8 www 110: my ($rawtype)=($tkline[3]=~/\.(\w+)$/);
111: $rawtype=~tr/A-Z/a-z/;
112: $allstats{$rawtype}++;
113:
114: my $title = $tkline[0];
115: if ( $title eq '' ) { $knockout{'no_title_'.$rawtype}++; next; }
1.1 www 116: my $author = $tkline[1];
1.8 www 117: if ( $author eq '' ) { $knockout{'no_author_'.$rawtype}++; next; }
1.1 www 118: my @authorname = split(' ', $author);
119: my $author_fname = $authorname[0];
120: my $author_lname = $authorname[1];
121: # We have to make an exception for Multimedia Physics which is an organization not a person
122: my $object_type;
123: if ( $author_lname eq 'Physics' ) {
124: $object_type = 'organization';
125: } else {
126: $object_type = 'person';
127: }
128: my $subject = $tkline[2];
129: next if ( ($subject eq 'Sample') || ($subject eq 'Something') );
1.2 www 130: my $resourceurl = 'http://nsdl.lon-capa.org' . $tkline[3];
131: my $baseid=$tkline[3];
1.4 www 132: my ($adom,$auname)=($baseid=~/^\/res\/(\w+)\/(\w+)\//);
1.2 www 133: $baseid=~s/\W/\_/g;
134: $baseid=~s/^\_res\_//g;
1.4 www 135: my $fileid=md5_hex($baseid);
1.2 www 136:
1.1 www 137: next if ( $resourceurl =~ /(.*)\/demo\/(.*)/ );
1.8 www 138: # too many fragments out there
139: next unless ($resourceurl=~/\.(html|htm|problem|assess|xhtm|xml|xhtml|gif|jpg|jpeg|png)$/i);
140:
1.1 www 141: my $keywords = $tkline[4];
142: my $version = $tkline[5];
143: my $notes = $tkline[6];
144: my $abstract = $tkline[7];
1.9 ! www 145: $abstract=~s/ s / /gs;
! 146: $abstract=~s/\s+/ /gs;
! 147: my $postsubject=$subject;
! 148: unless ($postsubject) {
! 149: $postsubject=$keywords;
! 150: } else {
! 151: $postsubject.=' ('.$keywords.')';
! 152: }
! 153: unless ($postsubject=~/\w/) { $knockout{'nosubject_'.$rawtype}++; next; }
! 154: unless ($abstract) { $knockout{'noabstract_'.$rawtype}++; next; }
1.8 www 155: my $type = $rawtype;
156: if ($type=~/htm/) { $type='htm'; }
157:
1.1 www 158: my $learning_resource_type;
159: if ( $type eq 'problem' ) {
160: $learning_resource_type = 114;
161: } elsif ( $type eq 'exam' ) {
162: $learning_resource_type = 114;
163: } elsif ( $type eq 'quiz' ) {
164: $learning_resource_type = 114;
165: } elsif ( $type eq 'assess' ) {
166: $learning_resource_type = 114;
167: } elsif ( $type eq 'survey' ) {
168: $learning_resource_type = 114;
169: } elsif ( $type eq 'form' ) {
170: $learning_resource_type = 114;
171: } elsif ( $type eq 'library' ) {
172: $learning_resource_type = 107;
173: } elsif ( $type eq 'page' ) {
174: $learning_resource_type = 104;
175: } elsif ( $type eq 'sequence' ) {
176: $learning_resource_type = 104;
177: } elsif ( $type eq 'spreadsheet' ) {
178: $learning_resource_type = 114;
179: } else {
180: $learning_resource_type = 0;
181: }
182:
183: my $media_format;
184: if ( ($type eq 'htm') || ($type eq 'gif') || ($type eq 'mov') || ($type eq 'xml') ) {
185: $media_format = 70;
186: } else {
187: $media_format = 0;
188: }
189:
1.8 www 190: my $language = $tkline[9];
191: # likelihood is that the following is true (people would bother if it is not)
192: if (($language=~/(seniso|notset|English)/) || (!$language)) { $language='seniso'; }
193: # NSDL only does English
194: if ( $language ne 'seniso') { $knockout{'lang_'.$rawtype}++; $knockoutlang{$language}++; next; }
1.1 www 195: my $primary_language='en-US';
196: my $creation_date = $tkline[10];
1.3 www 197: my ($pub_year,$pub_month,$pub_day) = ( $creation_date =~ /^(\d{4}) (\d{2}) (\d{2})\s(\d{2}):(\d{2}):(\d{2})$/ );
1.1 www 198: my $revision_date = $tkline[11];
1.3 www 199: my ($rev_year,$rev_month,$rev_day) = ( $revision_date =~ /^(\d{4}) (\d{2}) (\d{2})\s(\d{2}):(\d{2}):(\d{2})$/ );
1.1 www 200: my $owner = $tkline[12];
201: my $rights_description;
202: my $copyright = $tkline[13]; # public,domain,default,private (skip if private and domain)
203: # Public means no login required
204:
205: if ( $copyright eq 'public' ) {
206: $rights_description = 'LON-CAPA Public Resource. No login required.';
207: } elsif ($copyright eq 'domain') {
208: $rights_description = 'Restricted to certain LON-CAPA domains.';
209: } else {
210: $rights_description = 'LON-CAPA Default Use Restriction. Login required.';
211: }
212: # Domain means restricted to a particular LON-CAPA domain
213: # Defaults mean access open to any registered LON-CAPA user
214: # Private means open only to author of material
1.9 ! www 215: unless ($copyright eq 'public') { $knockout{'notpublic_'.$rawtype}++; next; }
1.1 www 216: my $platform = "5"; # HTML Browser (not specified but construed from metadata)
1.4 www 217: #
1.8 www 218: # We actually do this
219: #
220: $stats{$type}++;
221: $filterstats{$type}++;
222: #
1.4 www 223: # Create path
224: #
225: unless (-e $basepath.'/'.$adom) { mkdir($basepath.'/'.$adom); }
226: unless (-e $basepath.'/'.$adom.'/'.$auname) {
227: mkdir($basepath.'/'.$adom.'/'.$auname) || die 'Could not create '.$basepath.'/'.$adom.'/'.$auname;
228: }
229: open(XML,'>'.$basepath.'/'.$adom.'/'.$auname.'/'.$baseid.'.xml');
230: print XML (<<ENDMETA);
231: <?xml version="1.0" encoding="UTF-8"?>
232:
1.3 www 233: <oaidc:dc xmlns="http://purl.org/dc/elements/1.1/"
234: xmlns:oaidc="http://www.openarchives.org/OAI/2.0/oai_dc/"
235: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
236: xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
237: http://www.openarchives.org/OAI/2.0/oai_dc.xsd"
238: >
239: <title>$title</title>
1.9 ! www 240: <creator>$author</creator>
1.3 www 241: <identifier>$resourceurl</identifier>
1.9 ! www 242: <subject>$postsubject</subject>
1.3 www 243: <language>$primary_language</language>
244: <description>$abstract</description>
245: <date>$rev_year-$rev_month-$rev_day</date>
246: </oaidc:dc>
1.2 www 247: ENDMETA
1.4 www 248: close (XML);
1.5 www 249: }
1.8 www 250: foreach my $thistype (sort keys %stats) {
251: print "\n$thistype: $stats{$thistype}";
252: }
253: print "\n----\n";
254: }
255: print "\nDone.\n";
256: foreach my $thistype (sort keys %allstats) {
257: print "\n$thistype: $allstats{$thistype} ($filterstats{$thistype}) title: $knockout{'no_title_'.$thistype} author: $knockout{'no_author_'.$thistype} lang: $knockout{'lang_'.$thistype} priv: $knockout{'private_'.$thistype} domain: $knockout{'domain_'.$thistype} custom: $knockout{'custom_'.$thistype}";
258: }
259: print "\n----\n";
260: foreach my $thislang (sort keys %knockoutlang) {
261: print "\n>$thislang<: $knockoutlang{$thislang}";
1.1 www 262: }
1.8 www 263: print "\n";
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