/[hyperestraier_wrappers]/trunk/perl/scripts/est-spider
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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Annotation of /trunk/perl/scripts/est-spider

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Revision 5 - (hide annotations)
Sat Sep 3 19:16:48 2005 UTC (17 years ago) by dpavlin
File size: 4094 byte(s)
example spider for filesystem (like estcmd gather)
1 dpavlin 5 #!/usr/bin/perl -w
2     use strict;
3     use File::Find;
4     use Getopt::Long;
5     use File::Which;
6     use HyperEstraier;
7     use Text::Iconv;
8    
9     my $collection; # name which will be inserted
10     my $path_add; # add additional info in path
11     my $verbose;
12     my $exclude;
13    
14     #$verbose = 1;
15    
16     my $result = GetOptions(
17     "collection=s" => \$collection,
18     "path=s" => \$path_add,
19     "verbose!" => \$verbose,
20     "debug!" => \$verbose,
21     "exclude=s" => \$exclude,
22     );
23    
24     my $dir = shift @ARGV || die "usage: $0 [dir]";
25    
26     #my $basedir = $0;
27     #$basedir =~ s,/[^/]+$,/,;
28     #require "$basedir/filter.pm";
29    
30     my $pdftotext = which('pdftotext');
31    
32     my $iconv = new Text::Iconv('iso-8859-2', 'utf-8');
33    
34     select(STDERR); $|=1;
35     select(STDOUT); $|=1;
36    
37     print STDERR "using $pdftotext to convert pdf into html\n" if ($pdftotext && $verbose);
38    
39    
40     # open the database
41     my $db = HyperEstraier::Database->new();
42     $db->open('/tmp/casket', $HyperEstraier::Database::DBWRITER | $HyperEstraier::Database::DBCREAT);
43    
44     sub signal {
45     my($sig) = @_;
46     print "\nCaught a SIG$sig--syncing database and shutting down\n";
47     $db->sync();
48     exit(0);
49     }
50    
51     $SIG{'INT'} = \&signal;
52     $SIG{'QUIT'} = \&signal;
53    
54     find({ wanted => \&file,
55     follow => 1,
56     no_chdir => 1
57     }, $dir);
58    
59     print "--- sync\n";
60     $db->sync();
61    
62     print "--- optimize...\n";
63     $db->optimize(0);
64     exit;
65    
66     sub dump_contents($$$$) {
67     my ($db,$contents,$mtime,$path) = @_;
68    
69     return unless ($contents); # don't die on empty files
70    
71     if ($exclude && $path =~ m/$exclude/i) {
72     print STDERR "skip: $path\n" if ($verbose);
73     return;
74     }
75    
76     use bytes;
77     my $size = length $contents;
78    
79     print STDERR " [$size]" if ($verbose);
80    
81     # create a document object
82     my $doc = HyperEstraier::Document->new;
83    
84     my $title = $1 if ($contents =~ m#<title>(.+)</title>#is);
85    
86     # add attributes to the document object
87     $doc->add_attr('@uri', "file:///$path");
88     $doc->add_attr('@title', $title || $path);
89     $doc->add_attr('@size', $size);
90     $doc->add_attr('@mtime', $mtime);
91    
92     # html2text
93     $contents =~ s#<[^>]+/*>##gs;
94     $contents =~ s#\s\s+# #gs;
95    
96     $doc->add_text($iconv->convert($contents));
97    
98     # print $doc->dump_draft if ($verbose);
99    
100     # register the document object to the database
101     $db->put_doc($doc, $HyperEstraier::Database::PDCLEAN);
102    
103     }
104    
105     sub file {
106    
107     my $path = $_;
108     my $contents;
109    
110     return if (-l $path);
111    
112     if ($pdftotext && -f $path && $path =~ m/\.pdf$/i) {
113    
114     print STDERR "$path {converting}" if ($verbose);
115    
116     open(F,"$pdftotext -htmlmeta \"$path\" - |") || die "can't open $pdftotext with '$path'";
117     my $html;
118     while(<F>) {
119     # XXX why pdftotext barks if I try to use this is beyond me.
120     #$contents .= $_;
121    
122     $html .= $_;
123     }
124     close(F);
125    
126     return if (! $html);
127    
128     my $file_only = $path;
129     $file_only =~ s/^.*\/([^\/]+)$/$1/g;
130    
131     my ($pre_html,$pages,$post_html) = ('<html><head><title>$path :: page ##page_nr##</title></head><body><pre>',$html,'</pre></body></html>');
132    
133     ($pre_html,$pages,$post_html) = ($1,$2,$3) if ($html =~ m/^(<html>.+?<pre>)(.+)(<\/pre>.+?)$/si);
134    
135     if ($collection) {
136     $pre_html =~ s/<title>(.+?)<\/title>/<title>$collection :: page ##page_nr##<\/title>/si;
137     } else {
138     $pre_html =~ s/<title>(.+?)<\/title>/<title>$1 :: page ##page_nr##<\/title>/si ||
139     $pre_html =~ s/<title><\/title>/<title>$file_only :: page ##page_nr##<\/title>/si;
140     }
141    
142     my $page_nr = 1;
143     foreach my $page (split(/\f/s,$pages)) {
144     print STDERR " $page_nr" if ($verbose);
145     my $pre_tmp = $pre_html;
146     $pre_tmp =~ s/##page_nr##/$page_nr<\/title>/s;
147     dump_contents($db, $pre_tmp . $page . $post_html,time(), $path) if ($page !~ m/^\s*$/s);
148     $page_nr++;
149     }
150    
151     } else {
152    
153     return if (! -f $path || ! m/\.(html*|php|pl|txt|info|log|text)$/i);
154    
155     # skip index files
156     return if (m/index_[a-z]\.html*/i || m/index_symbol\.html*/i);
157    
158     open(F,"$path") || die "can't open file: $path";
159     print STDERR "$path" if ($verbose);
160     while(<F>) {
161     $contents .= "$_";
162     }
163     $contents .= "\n\n";
164    
165     #$contents = filter($contents,$collection);
166    
167     # add optional components to path
168     $path .= " $path_add" if ($path_add);
169    
170     dump_contents($db, $contents,time(), $path);
171     }
172    
173     print STDERR "\n" if ($verbose);
174     # die "zero size content in '$path'" if (! $contents);
175    
176     }
177    

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