X-Git-Url: https://git.deb.at/?a=blobdiff_plain;f=lib%2FPackages%2FSearch.pm;h=021f0fd46196fad9847ce57616e3ebd47da5f802;hb=2adc4deba7b2059df2590663b2b395d8e6208ac4;hp=000dc602d1b71249f58033352c45a92a8f02fbf3;hpb=91edc66c5f872b41114dc61bdefc6d89c205a183;p=deb%2Fpackages.git diff --git a/lib/Packages/Search.pm b/lib/Packages/Search.pm index 000dc60..021f0fd 100644 --- a/lib/Packages/Search.pm +++ b/lib/Packages/Search.pm @@ -43,10 +43,11 @@ package Packages::Search; use strict; use warnings; -use CGI qw( -oldstyle_urls ); use POSIX; use HTML::Entities; use DB_File; +use Lingua::Stem v0.82; +use Search::Xapian qw(:ops); use Deb::Versions; use Packages::CGI; @@ -54,300 +55,40 @@ use Exporter; our @ISA = qw( Exporter ); -our @EXPORT_OK = qw( nextlink prevlink indexline - resperpagelink - read_entry read_entry_all read_src_entry find_binaries - do_names_search do_fulltext_search - printindexline multipageheader ); +our @EXPORT_OK = qw( read_entry read_entry_all read_entry_simple + read_src_entry read_src_entry_all find_binaries + do_names_search do_fulltext_search do_xapian_search + find_similar + ); our %EXPORT_TAGS = ( all => [ @EXPORT_OK ] ); our $VERSION = 0.01; -our $USE_PAGED_MODE = 1; -use constant DEFAULT_PAGE => 1; -use constant DEFAULT_RES_PER_PAGE => 50; -our %page_params = ( page => { default => DEFAULT_PAGE, - match => '(\d+)' }, - number => { default => DEFAULT_RES_PER_PAGE, - match => '(\d+)' } ); - our $too_many_hits = 0; -sub parse_params { - my ( $cgi, $params_def, $opts ) = @_; - - my %params_ret = ( values => {}, errors => {} ); - my %params; - if ($USE_PAGED_MODE) { - debug( "Use PAGED_MODE", 2 ); - %params = %$params_def; - foreach (keys %page_params) { - delete $params{$_}; - } - %params = ( %params, %page_params ); - } else { - %params = %$params_def; - } - - foreach my $param ( keys %params ) { - - debug( "Param $param", 2 ); - - my $p_value_orig = $cgi->param($param); - - if (!defined($p_value_orig) - && defined $params_def->{$param}{alias} - && defined $cgi->param($params_def->{$param}{alias})) { - $p_value_orig = $cgi->param($params_def->{$param}{alias}); - debug( "Used alias $params_def->{$param}{alias}", - 2 ); - } - - my @p_value = ($p_value_orig); - - debug( "Value (Orig) ".($p_value_orig||""), 2 ); - - if ($params_def->{$param}{array} && defined $p_value_orig) { - @p_value = split /$params_def->{$param}{array}/, $p_value_orig; - debug( "Value (Array Split) ". join('##',@p_value), 2 ); - } - - if ($params_def->{$param}{match} && defined $p_value_orig) { - @p_value = map - { $_ =~ m/$params_def->{$param}{match}/; $_ = $1 } - @p_value; - } - @p_value = grep { defined $_ } @p_value; - - debug( "Value (Match) ". join('##',@p_value), 2 ); - - unless (@p_value) { - if (defined $params{$param}{default}) { - @p_value = ($params{$param}{default}); - } else { - @p_value = undef; - $params_ret{errors}{$param} = "undef"; - next; - } - } - - debug( "Value (Default) ". join('##',@p_value), 2 ); - my @p_value_no_replace = @p_value; - - if ($params{$param}{replace} && @p_value) { - @p_value = (); - foreach my $pattern (keys %{$params{$param}{replace}}) { - foreach (@p_value_no_replace) { - if ($_ eq $pattern) { - my $replacement = $params{$param}{replace}{$_}; - if (ref $replacement) { - push @p_value, @$replacement; - } else { - push @p_value, $replacement; - } - } else { - push @p_value, $_; - } - } - } - } - - debug( "Value (Final) ". join('##',@p_value), 2 ); - - if ($params_def->{$param}{array}) { - $params_ret{values}{$param} = { - orig => $p_value_orig, - no_replace => \@p_value_no_replace, - final => \@p_value, - }; - @{$params_def->{$param}{var}} = @p_value - if $params_def->{$param}{var}; - } else { - $params_ret{values}{$param} = { - orig => $p_value_orig, - no_replace => $p_value_no_replace[0], - final => $p_value[0], - }; - ${$params_def->{$param}{var}} = $p_value[0] - if $params_def->{$param}{var}; - } - $opts->{$param} = $params_ret{values}{$param}{final} if $opts; - } - - if ($USE_PAGED_MODE) { - $cgi->delete( "page" ); - $cgi->delete( "number" ); - } - - return %params_ret; -} - -sub start { - my $params = shift; - - my $page = $params->{values}{page}{final} - || DEFAULT_PAGE; - my $res_per_page = $params->{values}{number}{final} - || DEFAULT_RES_PER_PAGE; - - return 1 if $res_per_page =~ /^all$/i; - return $res_per_page * ($page - 1) + 1; -} - -sub end { - my $params = shift; - - use Data::Dumper; - debug( "end: ".Dumper($params) ); - my $page = $params->{page} - || DEFAULT_PAGE; - my $res_per_page = $params->{number} - || DEFAULT_RES_PER_PAGE; - - return $page * $res_per_page; -} - -sub indexline { - my ($cgi, $params, $num_res) = @_; - - my $index_line = ""; - my $page = $params->{page} - || DEFAULT_PAGE; - my $res_per_page = $params->{number} - || DEFAULT_RES_PER_PAGE; - my $numpages = ceil($num_res / - $res_per_page); - for (my $i = 1; $i <= $numpages; $i++) { - if ($i == $page) { - $index_line .= $i; - } else { - $index_line .= "self_url). - "&page=$i&number=$res_per_page\">". - "$i"; - } - if ($i < $numpages) { - $index_line .= " | "; - } - } - return $index_line; -} - -sub nextlink { - my ($cgi, $params, $no_results ) = @_; - - my $page = $params->{page} - || DEFAULT_PAGE; - $page++; - my $res_per_page = $params->{number} - || DEFAULT_RES_PER_PAGE; - - if ((($page-1)*$res_per_page + 1) > $no_results) { - return ">>"; - } - - return "self_url). - "&page=$page&number=$res_per_page\">>>"; -} - -sub prevlink { - my ($cgi, $params ) = @_; - - my $page = $params->{page} - || DEFAULT_PAGE; - $page--; - if (!$page) { - return "<<"; - } - - my $res_per_page = $params->{number} - || DEFAULT_RES_PER_PAGE; - - return "self_url). - "&page=$page&number=$res_per_page\"><<"; -} - -sub resperpagelink { - my ($cgi, $params, $res_per_page ) = @_; - - my $page; - if ($res_per_page =~ /^all$/i) { - $page = 1; - } else { - $page = ceil(start( $params ) / $res_per_page); - } - - return "self_url). - "&page=$page&number=$res_per_page\">$res_per_page"; -} - -sub printindexline { - my ( $input, $no_results, $opts ) = @_; - - my $index_line; - if ($no_results > $opts->{number}) { - - $index_line = prevlink( $input, $opts)." | ". - indexline( $input, $opts, $no_results)." | ". - nextlink( $input, $opts, $no_results); - - print "
$index_line
"; - } -} - -sub multipageheader { - my ( $input, $no_results, $opts ) = @_; - - my ($start, $end); - if ($opts->{number} =~ /^all$/i) { - $start = 1; - $end = $no_results; - $opts->{number} = $no_results; - $opts->{number_all}++; - } else { - $start = Packages::Search::start( $opts ); - $end = Packages::Search::end( $opts ); - if ($end > $no_results) { $end = $no_results; } - } - - print "Found $no_results matching packages,"; - if ($end == $start) { - print " displaying package $end.
"; - } else { - print " displaying packages $start to $end."; - } - - printindexline( $input, $no_results, $opts ); - - if ($no_results > 100) { - print "Results per page: "; - my @resperpagelinks; - for (50, 100, 200) { - if ($opts->{number} == $_) { - push @resperpagelinks, $_; - } else { - push @resperpagelinks, resperpagelink($input,$opts,$_); - } - } - if ($opts->{number_all}) { - push @resperpagelinks, "all"; +sub read_entry_all { + my ($hash, $key, $results, $non_results, $opts) = @_; + my ($virt, $result) = split /\000/o, $hash->{$key} || "-\01-", 2; + + my %virt = split /\01/o, $virt; + while (my ($suite, $provides) = each %virt) { + next if $suite eq '-'; + if ($opts->{h_suites}{$suite}) { + push @$results, [ $key, "-", $suite, 'virtual', 'v', 'v', 'v', 'v', + $provides]; } else { - push @resperpagelinks, resperpagelink($input, $opts, "all"); + push @$non_results, [ $key, "-", $suite, 'virtual', 'v', 'v', 'v', 'v', + $provides]; } - print join( " | ", @resperpagelinks )."
"; } - return ( $start, $end ); -} -sub read_entry_all { - my ($hash, $key, $results, $non_results, $opts) = @_; - my $result = $hash->{$key} || ''; - foreach (split /\000/, $result) { - my @data = split ( /\s/, $_, 8 ); - debug( "Considering entry ".join( ':', @data), 2); - if ($opts->{h_archives}{$data[0]} && $opts->{h_suites}{$data[1]} + foreach (split /\000/o, $result) { + my @data = split ( /\s/o, $_, 8 ); + debug( "Considering entry ".join( ':', @data), 2) if DEBUG; + if ($opts->{h_suites}{$data[1]} && ($opts->{h_archs}{$data[2]} || $data[2] eq 'all') && $opts->{h_sections}{$data[3]}) { - debug( "Using entry ".join( ':', @data), 2); + debug( "Using entry ".join( ':', @data), 2) if DEBUG; push @$results, [ $key, @data ]; } else { push @$non_results, [ $key, @data ]; @@ -359,99 +100,189 @@ sub read_entry { my @non_results; read_entry_all( $hash, $key, $results, \@non_results, $opts ); } -sub read_src_entry { - my ($hash, $key, $results, $opts) = @_; + +#FIXME: make configurable +my %fallback_suites = ( + 'oldstable-backports' => 'oldstable', + 'oldstable-volatile' => 'oldstable', + 'stable-backports' => 'stable', + 'stable-volatile' => 'stable', + experimental => 'unstable' ); + +sub read_entry_simple { + my ($hash, $key, $archives, $suite) = @_; + # FIXME: drop $archives + + my ($virt, $result) = split /\000/o, $hash->{$key} || "-\01-\0", 2; + my %virt = split /\01/o, $virt; + debug( "read_entry_simple: key=$key, archives=". + join(" ",(keys %$archives)).", suite=$suite", 1) if DEBUG; + debug( "read_entry_simple: virt=".join(" ",(%virt)), 2) if DEBUG; + # FIXME: not all of the 2^4=16 combinations of empty(results), + # empty(virt{suite}), empty(fb_result), empty(virt{fb_suite}) are dealt + # with correctly, but it's adequate enough for now + return [ $virt{$suite} ] unless defined $result; + foreach (split /\000/o, $result) { + my @data = split ( /\s/o, $_, 8 ); + debug( "use entry: @data", 2 ) if DEBUG && $data[1] eq $suite; + return [ $virt{$suite}, @data ] if $data[1] eq $suite; + } + if (my $fb_suite = $fallback_suites{$suite}) { + my $fb_result = read_entry_simple( $hash, $key, $archives, $fb_suite ); + my $fb_virt = shift(@$fb_result); + $virt{$suite} .= $virt{$suite} ? " $fb_virt" : $fb_virt if $fb_virt; + return [ $virt{$suite}, @$fb_result ] if @$fb_result; + } + return [ $virt{$suite} ]; +} + +sub read_src_entry_all { + my ($hash, $key, $results, $non_results, $opts) = @_; my $result = $hash->{$key} || ''; - foreach (split /\000/, $result) { - my @data = split ( /\s/, $_, 6 ); - debug( "Considering entry ".join( ':', @data), 2); + debug( "read_src_entry_all: key=$key", 1) if DEBUG; + foreach (split /\000/o, $result) { + my @data = split ( /\s/o, $_, 6 ); + debug( "Considering entry ".join( ':', @data), 2) if DEBUG; if ($opts->{h_archives}{$data[0]} && $opts->{h_suites}{$data[1]} && $opts->{h_sections}{$data[2]}) { - debug( "Using entry ".join( ':', @data), 2); + debug( "Using entry ".join( ':', @data), 2) if DEBUG; push @$results, [ $key, @data ]; + } else { + push @$non_results, [ $key, @data ]; } } } +sub read_src_entry { + my ($hash, $key, $results, $opts) = @_; + my @non_results; + read_src_entry_all( $hash, $key, $results, \@non_results, $opts ); +} sub do_names_search { - my ($keyword, $packages, $postfixes, $read_entry, $opts) = @_; - my @results; + my ($keywords, $packages, $postfixes, $read_entry, $opts, + $results, $non_results) = @_; - $keyword = lc $keyword unless $opts->{case_bool}; + my $first_keyword = lc shift @$keywords; + @$keywords = map { lc $_ } @$keywords; - if ($opts->{exact}) { - &$read_entry( $packages, $keyword, \@results, $opts ); - } else { - my ($key, $prefixes) = ($keyword, ''); - my %pkgs; - $postfixes->seq( $key, $prefixes, R_CURSOR ); - while (index($key, $keyword) >= 0) { - if ($prefixes =~ /^\001(\d+)/o) { - $too_many_hits += $1; - } else { - foreach (split /\000/o, $prefixes) { - $_ = '' if $_ eq '^'; - debug( "add word $_$key", 2); - $pkgs{$_.$key}++; + my ($key, $prefixes) = ($first_keyword, ''); + my %pkgs; + $postfixes->seq( $key, $prefixes, R_CURSOR ); + while (index($key, $first_keyword) >= 0) { + if ($prefixes =~ /^\001(\d+)/o) { + debug( "$key has too many hits", 2 ) if DEBUG; + $too_many_hits += $1; + } else { + PREFIX: + foreach (split /\000/o, $prefixes) { + $_ = '' if $_ eq '^'; + my $word = "$_$key"; + foreach my $k (@$keywords) { + next PREFIX unless $word =~ /\Q$k\E/; } + debug( "add word $word", 2) if DEBUG; + $pkgs{$word}++; } - last if $postfixes->seq( $key, $prefixes, R_NEXT ) != 0; - last if $too_many_hits or keys %pkgs >= 100; - } - - my $no_results = keys %pkgs; - if ($too_many_hits || ($no_results >= 100)) { - $too_many_hits += $no_results; - %pkgs = ( $keyword => 1 ); - } - foreach my $pkg (sort keys %pkgs) { - &$read_entry( $packages, $pkg, \@results, $opts ); } + last if $postfixes->seq( $key, $prefixes, R_NEXT ) != 0; + last if $too_many_hits or keys %pkgs >= 100; + } + + my $no_results = keys %pkgs; + if ($too_many_hits || ($no_results >= 100)) { + $too_many_hits += $no_results; + %pkgs = ( $first_keyword => 1 ) unless @$keywords; + } + foreach my $pkg (sort keys %pkgs) { + &$read_entry( $packages, $pkg, $results, $non_results, $opts ); } - return \@results; } -sub do_fulltext_search { - my ($keyword, $file, $did2pkg, $packages, $read_entry, $opts) = @_; - my @results; - - my @lines; - my $regex; - if ($opts->{case_bool}) { - if ($opts->{exact}) { - $regex = qr/\b\Q$keyword\E\b/o; - } else { - $regex = qr/\Q$keyword\E/o; - } - } else { - if ($opts->{exact}) { - $regex = qr/\b\Q$keyword\E\b/io; - } else { - $regex = qr/\Q$keyword\E/io; + +sub do_xapian_search { + my ($keywords, $db, $did2pkg, $packages, $read_entry, $opts, + $results, $non_results) = @_; + +# NOTE: this needs to correspond with parse-packages! + my @tmp; + foreach my $keyword (@$keywords) { + $keyword =~ s;[^\w/+]+; ;og; + push @tmp, $keyword; + } + my $stemmer = Lingua::Stem->new(); + my $stemmed_keywords = $stemmer->stem( @tmp ); + + my $db = Search::Xapian::Database->new( $db ); + my $enq = $db->enquire( OP_OR, @$keywords, @$stemmed_keywords ); + debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG; + my @matches = $enq->matches(0, 999); + + my (@order, %tmp_results); + foreach my $match ( @matches ) { + my $id = $match->get_docid(); + my $result = $did2pkg->{$id}; + + foreach (split /\000/o, $result) { + my @data = split /\s/, $_, 3; + debug ("Considering $data[0], arch = $data[2], relevance=".$match->get_percent(), 3) if DEBUG; +# next unless $data[2] eq 'all' || $opts->{h_archs}{$data[2]}; +# debug ("Ok", 3) if DEBUG; + unless ($tmp_results{$data[0]}++) { + push @order, $data[0]; + } } + last if @order > 100; + } + undef $db; + $too_many_hits++ if @order > 100; + + debug ("ORDER: @order", 2) if DEBUG; + foreach my $pkg (@order) { + &$read_entry( $packages, $pkg, $results, $non_results, $opts ); } +} + +sub find_similar { + my ($pkg, $db, $did2pkg) = @_; + + my $db = Search::Xapian::Database->new( $db ); + my $enq = $db->enquire( "P$pkg" ); + debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG; + my $first_match = ($enq->matches(0,1))[0]->get_document(); + + my @terms; + my $term_it = $first_match->termlist_begin(); + my $term_end = $first_match->termlist_end(); - open DESC, '<', "$file" - or die "couldn't open $file: $!"; - while (