+ }
+ $sample=~s/\n/ /g;
+
+ # data used by omega
+ # Decode html entities in it, since omega re-encodes them.
+ eval q{use HTML::Entities};
+ error $@ if $@;
+ $doc->set_data(
+ "url=".urlto($params{page}, "")."\n".
+ "sample=".decode_entities($sample)."\n".
+ "caption=".decode_entities($caption)."\n".
+ "modtime=$IkiWiki::pagemtime{$params{page}}\n".
+ "size=".length($params{content})."\n"
+ );
+
+ # Index document and add terms for other metadata.
+ my $tg = Search::Xapian::TermGenerator->new();
+ if (! $stemmer) {
+ my $langcode=$ENV{LANG} || "en";
+ $langcode=~s/_.*//;
+
+ # This whitelist is here to work around a xapian bug (#486138)
+ my @whitelist=qw{da de en es fi fr hu it no pt ru ro sv tr};
+
+ if (grep { $_ eq $langcode } @whitelist) {
+ $stemmer=Search::Xapian::Stem->new($langcode);
+ }
+ else {
+ $stemmer=Search::Xapian::Stem->new("english");
+ }
+ }
+ $tg->set_stemmer($stemmer);
+ $tg->set_document($doc);
+ $tg->index_text($params{page}, 2);
+ $tg->index_text($caption, 2);
+ $tg->index_text($title, 2) if $title ne $caption;
+ $tg->index_text($toindex);
+ $tg->index_text(lc($title), 1, "S"); # for title:foo
+ foreach my $link (@{$links{$params{page}}}) {
+ $tg->index_text(lc($link), 1, "XLINK"); # for link:bar
+ }
+
+ $doc->add_term($pageterm);
+ $db->replace_document_by_term($pageterm, $doc);
+}
+
+sub delete (@) {
+ my $db=xapiandb();
+ foreach my $page (@_) {
+ my $pageterm=pageterm(pagename($page));
+ $db->delete_document_by_term($pageterm) if defined $pageterm;
+ }
+}
+
+sub cgi ($) {
+ my $cgi=shift;
+
+ if (defined $cgi->param('P')) {
+ # only works for GET requests
+ chdir("$config{wikistatedir}/xapian") || error("chdir: $!");
+ $ENV{OMEGA_CONFIG_FILE}="./omega.conf";
+ $ENV{CGIURL}=$config{cgiurl},
+ IkiWiki::loadindex();
+ $ENV{HELPLINK}=htmllink("", "", "ikiwiki/searching",
+ noimageinline => 1, linktext => "Help");
+ exec($config{omega_cgi}) || error("$config{omega_cgi} failed: $!");
+ }
+}
+
+sub pageterm ($) {
+ my $page=shift;
+
+ # 240 is the number used by omindex to decide when to hash an
+ # overlong term. This does not use a compatible hash method though.
+ if (length $page > 240) {
+ eval q{use Digest::SHA1};
+ if ($@) {
+ debug("search: ".sprintf(gettext("need Digest::SHA1 to index %s"), $page)) if $@;
+ return undef;
+ }
+
+ # Note no colon, therefore it's guaranteed to not overlap
+ # with a page with the same name as the hash..
+ return "U".lc(Digest::SHA1::sha1_hex($page));