/[webpac]/trunk/feeds/sciencedirect2.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /trunk/feeds/sciencedirect2.pl

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Revision 338 - (show annotations)
Thu Jun 10 22:05:38 2004 UTC (15 years, 11 months ago) by dpavlin
File MIME type: text/plain
File size: 3691 byte(s)
fixed parsing for science direct html with more than one <a href=> per one <tr>
support to force input file (if you uncomment filename in script)

1 #!/usr/bin/perl -w
2
3 # This script will fatch list of articles on which you have access
4 # (using IP authorisation) from ScienceDirect
5 #
6 # This version requires CSV dumps from ScienceDirect for Holdings data
7 # and categories, but can output much more data about each record
8
9 use LWP::UserAgent;
10 use HTML::TreeBuilder;
11 require Text::CSV;
12 use Text::Unaccent;
13 use strict;
14
15 my $debug=1;
16
17 my $file;
18
19 # uncomment following line if you want to use file instead of http connection
20 #$file="list.html";
21
22 # configure ScienceDirect CVS files location
23 my $csv_dir="/data/isis_data/sciencedirect";
24 my $j_holdings="sd_JournalHoldingsRpt.txt";
25 my $j_category="sd_Journal_Category.txt";
26
27 # URL to list of subscribed journals
28 my $url = 'http://www.sciencedirect.com/science?_ob=JournalListURL&_type=subscribed&_stype=title&subjColl=all&_auth=y&_update=y&_frameSeg=M&_title=all&_acct=C000050661&_version=1&_urlVersion=0&_userid=1034703&md5=6d4b6e263318a1d7d2a3b523d861f920';
29 my $html_codepage="iso-8859-1";
30
31 my $csv = Text::CSV->new();
32 my $journal;
33 my $c_wo_h = 0; # category without holding record
34 my $c_nr = 0; # number of categories assigned
35
36 my $j_basic = 0;
37 my $j_detailed = 0;
38
39 print STDERR "unrolling $j_holdings\n";
40
41 sub nuc {
42 # normalizing UC
43 my $s=shift @_ || return "";
44 $s=unac_string($html_codepage,$s);
45 $s=~s/[^\w]/ /g;
46 $s=~s/ +/ /g;
47 return uc($s);
48 }
49
50 open(H,"$csv_dir/$j_holdings") || die "can't open $csv_dir/$j_holdings: $!";
51 my $line = <H>; # skip header line
52 while(<H>) {
53 chomp;
54 $csv->parse($_) || warn "can't parse '$_': ".$csv->error_input;
55 my @data = $csv->fields;
56 my $key = nuc($data[0]);
57 push @data,""; # for categories later...
58 $journal->{$key} = \@data;
59 }
60 close(H);
61
62 print STDERR "unrolling $j_category\n";
63
64 open(C,"$csv_dir/$j_category") || die "can't open $csv_dir/$j_category: $!";
65 $line = <C>; # skip header line
66 while(<C>) {
67 chomp;
68 $csv->parse($_) || warn "can't parse '$_': ".$csv->error_input;
69 my @data = $csv->fields;
70 my $key = nuc($data[1]);
71 if (! $journal->{$key}) {
72 $c_wo_h++;
73 next;
74 }
75
76 foreach my $i (4, 6, 8, 10) {
77 push @{$journal->{$key}},$data[$i] || "";
78 if ($data[$i]) {
79 $c_nr++;
80 }
81 }
82 }
83 close(C);
84
85 print STDERR "$c_nr categories assigned, $c_wo_h categories with holdings\n";
86
87 $debug++ if (lc($ARGV[0]) eq "-d");
88
89
90 my $res;
91 if (! $file) {
92 my $ua = new LWP::UserAgent;
93 $ua->agent("Mjesec educational harvester -- contact mglavica\@ffzg.hr 0.0");
94 $ua->timeout(60);
95 #$ua->env_proxy();
96 #$ua->proxy(['http', 'ftp'], 'http://proxy.carnet.hr:8001/');
97
98 print STDERR "getting '$url'...\n" if ($debug);
99 my $req = HTTP::Request->new(GET => $url);
100
101 $res = $ua->request($req);
102 } elsif (! -e $file) {
103 die "can't find feed file '$file'";
104 }
105
106 if ($file || $res->is_success) {
107 print STDERR "parsing html...\n" if ($debug);
108 my $tree = HTML::TreeBuilder->new;
109 if ($file) {
110 $tree->parse_file("list.html");
111 } else {
112 $tree->parse($res->content);
113 }
114
115 foreach my $tr ($tree->look_down('_tag', 'tr')) {
116 my $link;
117 foreach my $link ($tr->look_down('_tag','a')) {
118 if ($link->attr('href') =~ m{/science\?_ob=JournalURL}) {
119 my $j=nuc($link->as_text);
120 if ($journal->{$j}) {
121 my $i=0;
122 foreach my $line (@{$journal->{$j}}) {
123 print $i++,": $line\n";
124 }
125 $j_detailed++;
126 } else {
127 print "0: ",$link->as_text."\n";
128 print "7: http://www.sciencedirect.com",$link->attr('href')."\n";
129 $j_basic++;
130 print STDERR "can't find details for $j\n" if ($debug);
131 }
132
133 print "\n";
134 }
135 }
136 }
137
138 $tree->delete; # clear memory!
139
140 } else {
141 warn "can't fetch web page from '$url'";
142 }
143
144 print STDERR "Processed ",($j_basic+$j_detailed)," journals, $j_basic with basic data and $j_detailed detailed\n";
145

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