/[Search-Estraier]/trunk/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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Contents of /trunk/scripts/est-spider

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Revision 64 - (show annotations)
Sat Jan 7 23:46:10 2006 UTC (18 years, 3 months ago) by dpavlin
File size: 5838 byte(s)
added example scripts to crawl filesystem and index cpan
1 #!/usr/bin/perl -w
2 use strict;
3 use File::Find;
4 use Getopt::Long;
5 use File::Which;
6 use HyperEstraier;
7 use Search::Estraier;
8 use Text::Iconv;
9 #use File::MMagic;
10 use File::MMagic::XS qw/:compat/;
11
12 # do we use Node API?
13 my $node_url;
14
15 my $collection; # name which will be inserted
16 my $path_add; # add additional info in path
17 my $verbose;
18 my $exclude;
19
20 #$verbose = 1;
21 my $debug = 0;
22 my $force = 0;
23 my $native = 0;
24
25 my $result = GetOptions(
26 "collection=s" => \$collection,
27 "path=s" => \$path_add,
28 "verbose!" => \$verbose,
29 "debug!" => \$debug,
30 "exclude=s" => \$exclude,
31 "node=s" => \$node_url,
32 "force!" => \$force,
33 "native!" => \$native,
34 );
35
36 my $dir = shift @ARGV || die "usage: $0 [dir]";
37
38 if (! -e $dir) {
39 warn "directory $dir doesn't exist, skipping\n";
40 exit 1;
41 }
42
43 #my $basedir = $0;
44 #$basedir =~ s,/[^/]+$,/,;
45 #require "$basedir/filter.pm";
46
47 my $pdftotext = which('pdftotext');
48
49 #my $mm = new File::MMagic('/usr/share/misc/file/magic');
50 my $mm = new File::MMagic::XS();
51
52 my $iconv = new Text::Iconv('iso-8859-2', 'utf-8');
53
54 select(STDERR); $|=1;
55 select(STDOUT); $|=1;
56
57 print STDERR "using $pdftotext to convert pdf into html\n" if ($pdftotext && $verbose);
58
59 my $db;
60 if ($node_url) {
61 if ($native) {
62 $db = HyperEstraier::Node->new($node_url);
63 } else {
64 $db = new Search::Estraier::Node;
65 $db->set_url($node_url);
66 }
67 $db->set_auth('admin', 'admin');
68 } else {
69 # open the database
70 $db = HyperEstraier::Database->new();
71 $db->open('/tmp/casket', $HyperEstraier::Database::DBWRITER | $HyperEstraier::Database::DBCREAT);
72
73 sub signal {
74 my($sig) = @_;
75 print "\nCaught a SIG$sig--syncing database and shutting down\n";
76 $db->sync();
77 exit(0);
78 }
79
80 $SIG{'INT'} = \&signal;
81 $SIG{'QUIT'} = \&signal;
82 }
83
84 find({ wanted => \&file,
85 follow => 1,
86 follow_skip => 2,
87 no_chdir => 1,
88 }, $dir);
89
90 unless ($node_url) {
91 print "--- sync\n";
92 $db->sync();
93
94 print "--- optimize...\n";
95 $db->optimize(0);
96 }
97 exit;
98
99 sub dump_contents($$$$) {
100 my ($db,$contents,$mtime,$path) = @_;
101
102 return unless ($contents); # don't die on empty files
103
104 if ($exclude && $path =~ m/$exclude/i) {
105 print STDERR "skip: $path\n" if ($verbose);
106 return;
107 }
108
109 use bytes;
110 my $size = length $contents;
111
112 print STDERR " [$size]" if ($verbose);
113
114 # create a document object
115 my $doc;
116 if ($native) {
117 $doc = HyperEstraier::Document->new;
118 } else {
119 $doc = new Search::Estraier::Document;
120 }
121
122 my $title = $1 if ($contents =~ m#<title>(.+?)</title>#is);
123
124 # chop long titles to 100 chars
125 $title = substr($title, 0, 100) . '...' if ($title && length($title) > 100);
126 # use path if no title is found
127 $title ||= $path;
128
129 # add attributes to the document object
130 $doc->add_attr('@uri', "file:///$path");
131 $doc->add_attr('@title', $iconv->convert($title));
132 $doc->add_attr('@size', $size);
133 $doc->add_attr('@mtime', $mtime);
134
135 # html2text
136 $contents =~ s#<[^>]+/*>##gs;
137 $contents =~ s#\s\s+# #gs;
138
139 $doc->add_text($iconv->convert($contents));
140
141 # print $doc->dump_draft if ($verbose);
142
143 # register the document object to the database
144 if ($node_url) {
145 $db->put_doc($doc);
146 } else {
147 $db->put_doc($doc, $HyperEstraier::Database::PDCLEAN);
148 }
149
150 }
151
152 sub file {
153
154 my $path = $_;
155 my $contents;
156
157 return if (! $force && -l $path || $path =~ m#/.svn# || $path =~ m/(~|.bak)$/);
158
159 my $mtime = (stat($path))[9] || -1;
160 my $mtime_db = $db->get_doc_attr_by_uri("file:///$path", '@mtime') || -2;
161
162 if ($mtime == $mtime_db) {
163 print STDERR "# same: $path $mtime\n" if ($verbose);
164 return unless($force);
165 } else {
166 print STDERR "# changed: $path $mtime != $mtime_db\n" if ($debug);
167 }
168
169 # skip files on which File::MMagic::XS croaks
170 return if ($path =~ m#\.au$#);
171
172 my $type = $mm->checktype_filename($path);
173 $type =~ s/\s+/ /gs;
174
175 print STDERR "# $path $type\n" if ($debug);
176
177 if ($pdftotext && -f $path && $type =~ m/pdf/i) {
178
179 print STDERR "$path {converting}" if ($verbose);
180
181 open(F,"$pdftotext -htmlmeta \"$path\" - |") || die "can't open $pdftotext with '$path'";
182 my $html;
183 while(<F>) {
184 # XXX why pdftotext barks if I try to use this is beyond me.
185 #$contents .= $_;
186
187 $html .= $_;
188 }
189 close(F);
190
191 return if (! $html);
192
193 my $file_only = $path;
194 $file_only =~ s/^.*\/([^\/]+)$/$1/g;
195
196 my ($pre_html,$pages,$post_html) = ('<html><head><title>$path :: page ##page_nr##</title></head><body><pre>',$html,'</pre></body></html>');
197
198 ($pre_html,$pages,$post_html) = ($1,$2,$3) if ($html =~ m/^(<html>.+?<pre>)(.+)(<\/pre>.+?)$/si);
199
200 if ($collection) {
201 $pre_html =~ s/<title>(.+?)<\/title>/<title>$collection :: page ##page_nr##<\/title>/si;
202 } else {
203 $pre_html =~ s/<title>(.+?)<\/title>/<title>$1 :: page ##page_nr##<\/title>/si ||
204 $pre_html =~ s/<title><\/title>/<title>$file_only :: page ##page_nr##<\/title>/si;
205 }
206
207 # save empty entry as a placeholder
208 dump_contents($db, ' ', $mtime, "$path");
209
210 my $page_nr = 1;
211 foreach my $page (split(/\f/s,$pages)) {
212 print STDERR " $page_nr" if ($verbose);
213 my $pre_tmp = $pre_html;
214 $pre_tmp =~ s/##page_nr##/$page_nr<\/title>/s;
215 dump_contents($db, $pre_tmp . $page . $post_html, $mtime, "$path#$page_nr") if ($page !~ m/^\s*$/s);
216 $page_nr++;
217 }
218
219 } else {
220
221 # return if (! -f $path || ! m/\.(html*|php|pl|txt|info|log|text)$/i);
222 return unless (-f $path && $type =~ m/html/ ||
223 ($type =~ m#text# && $path =~ m/\.(php|pl|txt|info|log|text)$/io)
224 );
225
226 # skip index files
227 return if (m/index_[a-z]\.html*/i || m/index_symbol\.html*/i);
228
229 open(F,"$path") || die "can't open file: $path";
230 print STDERR "$path ($type)" if ($verbose);
231 while(<F>) {
232 $contents .= "$_";
233 }
234 $contents .= "\n\n";
235
236 #$contents = filter($contents,$collection);
237
238 # add optional components to path
239 $path .= " $path_add" if ($path_add);
240
241 dump_contents($db, $contents, $mtime, $path);
242 }
243
244 print STDERR "\n" if ($verbose);
245 # die "zero size content in '$path'" if (! $contents);
246
247 }
248

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