package WebPac;
use base 'CGI::Application';
use strict;
use HTML::FillInForm;
use SWISH::API;
use Text::Iconv;
use DBI;
use Config::IniFiles;
use Text::Unaccent;
use Data::Pageset;
use POSIX qw(locale_h);
use lib '..';
use index_DBI_filter;
use back2html;
# read global.conf configuration
my $cfg_global = new Config::IniFiles( -file => '../global.conf' ) || die "can't open 'global.conf'";
# configuration options from global.conf
my $TEMPLATE_PATH = $cfg_global->val('webpac', 'template_html') || die "need template_html in global.conf, section webpac";
my $CHARSET = $cfg_global->val('webpac', 'charset') || 'ISO-8859-1';
my $SWISH = $cfg_global->val('webpac', 'swish') || '/usr/bin/swish-e';
my $INDEX = $cfg_global->val('webpac', 'index') || die "need index in global.conf, section webpac";
my $MAX_HITS = $cfg_global->val('webpac', 'max_hits') || 0;
my $ON_PAGE =$cfg_global->val('webpac', 'on_page') || 10;
my $MIN_WILDCARD =$cfg_global->val('webpac', 'min_wildcard') || 1;
my $TEMPLATE =$cfg_global->val('webpac', 'template');
my $UNAC_FILTER =$cfg_global->val('global', 'my_unac_filter');
my $BASE_PATH =$cfg_global->val('webpac', 'base_path');
# for pager
my $pages_per_set = $cfg_global->val('webpac', 'pages_per_set') || 10;
my $locale = $cfg_global->val('locale') || 'hr_HR';
Text::Iconv->raise_error(0); # Conversion errors raise exceptions
my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
setlocale(LC_CTYPE, $locale);
setlocale(LC_COLLATE, $locale);
if ($UNAC_FILTER) {
require $UNAC_FILTER;
} else {
sub WebPac::my_unac_string {
my ($charset, $string) = (@_);
return $string;
}
}
# use path from cgi script to support templates in subdirs
sub url_ex {
my $q = shift || die "suff2file needs CGI object!";
my $tpl = shift || die "url_ex needs template name!";
return suff2file($BASE_PATH, $q->url(-absolute => 1,-path => 1),$TEMPLATE_PATH,$tpl);
}
sub suff2file($$$$) {
my ($base_path, $p, $path, $tpl) = @_;
return $tpl if (! $base_path);
#warn "base_path: $base_path, p: $p, path: $path, tpl: $tpl\n";
$p =~ s#/[^/]*$##;
# strip everything to and including base path, leaving only
# additional (virtual) path
if ($base_path eq "/") {
$p =~ s,/*,,g;
my ($name,$ext) = split(/\./,$tpl);
$p = $name . "-" . $p . "." . $ext;
} elsif ($p =~ s,^.*?$base_path,,) {
$p =~ s,/*,,g;
my ($name,$ext) = split(/\./,$tpl);
$p = $name . $p . "." . $ext;
} else {
# if unable reset it!
$p = $tpl;
}
if ( -e "$path/$p") {
return $p;
} else {
return $tpl;
}
}
sub setup {
my $self = shift;
$self->tmpl_path($TEMPLATE_PATH);
$self->run_modes(
'search' => 'show_search_form',
'results' => 'show_results_list',
# 'user' => 'show_user_detail',
'index' => 'show_index',
);
$self->start_mode('search');
$self->mode_param('rm');
$self->header_props(-charset=>$CHARSET);
}
sub in_template {
my $q = shift || die "need CGI object!";
my $html = shift || die "This page is left unintentionally blank";
return $html if (! defined($TEMPLATE));
my ($dir,$tpl);
if ($TEMPLATE =~ m,^(.*?/*)([^/]+)$,) {
($dir,$tpl) = ($1,$2);
} else {
die "can't parse TEMPLATE path";
}
my $master_tpl = suff2file($BASE_PATH, $q->url(-absolute => 1, -path => 1),$dir,$tpl);
if (open(T, $master_tpl)) {
my $template_html = join("\n",<T>);
close(T);
$template_html =~ s/##webpac##/$html/gsi;
return $template_html;
} else {
return "Can't read template '$master_tpl'";
}
}
#--------------------------------------------------------------------------
#
# make pager navigation and fill template variables
# compatibile with HTML::Pager
#
sub make_pager($$$) {
my ($q,$tmpl,$pager) = @_;
#
# pager navigation
#
my ($pager_prev,$pager_next, $pager_jump) = ('','','');
my $nav_fmt=qq{ <a href="%s">%s</a> };
if ($pager->current_page() > $pager->first_page) {
$q->param('PAGER_offset', $pager->current_page - 1);
$pager_prev .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'<<');
}
if ($pager->previous_set) {
$q->param('PAGER_offset', $pager->previous_set);
$pager_prev .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'..');
}
foreach my $p (@{$pager->pages_in_set()}) {
next if ($p <= 0);
if($p == $pager->current_page()) {
$pager_jump .= "<b>$p</b> ";
} else {
$q->param('PAGER_offset', $p);
$pager_jump .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),$p);
}
}
if ($pager->next_set) {
$q->param('PAGER_offset', $pager->next_set);
$pager_next .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'..');
}
if ($pager->current_page() < $pager->last_page) {
$q->param('PAGER_offset', $pager->current_page + 1);
$pager_next .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'>>');
}
$tmpl->param('PAGER_PREV', $pager_prev);
$tmpl->param('PAGER_JUMP', $pager_jump);
$tmpl->param('PAGER_NEXT', $pager_next);
}
#
# put persisten variables in template
#
sub make_pager_vars {
my $q = shift @_;
my $tmpl = shift @_;
my @persist_vars = @_;
my $hidden_vars = '';
my $hidden_search = '';
foreach my $v (@persist_vars) {
foreach my $val ($q->param($v)) {
next if (! $val || $val eq '');
$val =~ s/"/"/g;
$hidden_vars .= '<input type="hidden" name="'.$v.'" value="'.$val.'"/>'."\n";
$hidden_search .= '<input type="hidden" name="'.$v.'" value="'.$val.'"/>'."\n" if ($v ne "rm");
}
}
$tmpl->param('PAGER_HIDDEN', $hidden_vars);
$tmpl->param('SEARCH_HIDDEN', $hidden_search);
$tmpl->param('PAGER_JAVASCRIPT', qq#
<SCRIPT LANGUAGE="Javascript">
<!-- Begin
// dummy emulator for HTML::Pager templates
function PAGER_set_offset_and_submit() {
return true;
}
// End -->
</script>
#);
}
#--------------------------------------------------------------------------
sub show_search_form {
my $self = shift;
# Get the CGI.pm query object
my $q = $self->query();
my $tmpl = $self->load_tmpl(url_ex($q,'search.html'));
my $html = $tmpl->output;
my $fif = new HTML::FillInForm;
return in_template($q,$fif->fill(scalarref => \$html, fobject => $q,
target => 'search'));
}
sub show_results_list {
my $self = shift;
my $q = $self->query();
# submit was reset?
if ($q->param('reset')) {
$q->delete_all;
return $self->show_search_form();
}
# load template for this page
my @s_arr; # all queries are located here
my @path_arr = $q->param('path');
my $full = $q->param('full');
my @persist_vars = ( 'rm', 'persist_search' );
my $url_params = {
'rm' => 'results',
'show_full' => 1,
'last_PAGER_offset' => ($q->param('PAGER_offset') || 0),
};
my @persist_search_vars;
my $url_params_persist = {};
if ($q->param("persist_search")) {
@persist_search_vars = split(/\s*,\s*/, $q->param("persist_search"));
$url_params_persist->{'persist_search'} = $q->url_param("persist_search");
$url_params->{'persist_search'} = $q->url_param("persist_search");
}
# support parametars "f" and "v" for start
for(my $i = 0; $i <=30; $i++) {
$i = '' if ($i == 0);
return show_index($self, $i) if ($q->param("f".$i."_index"));
next if (! $q->param("v$i") || $q->param("v$i") eq '');
next if (! $q->param("f$i"));
my $persist = grep(/^$i$/,@persist_search_vars);
push @persist_vars, "f$i";
push @persist_vars, "v$i";
push @persist_vars, "e$i" if ($q->param("e$i"));
# create url parametars (and persistent ones)
$url_params->{"f$i"} = $q->url_param("f$i");
$url_params_persist->{"f$i"} = $q->url_param("f$i") if ($persist);
my @v;
foreach my $v ($q->url_param("v$i")) {
# escape quotes so that phrase search work
$v =~ s/"/%22/g;
push @v, $v;
}
$url_params->{"v$i"} = \@v;
$url_params_persist->{"v$i"} = \@v if ($persist);
if ($q->param("e$i")) {
$url_params->{"e$i"} = $q->url_param("e$i");
# $url_params_persist->{"e$i"} = $q->url_param("e$i");
}
my $wc="*"; # swish wildcard
$wc="" if ($i eq ""); # don't apply wildcard on field 0
# re-write query from +/- to and/and not
my @param_vals = $q->param("v$i");
my @swish_q;
my ($pre,$post,$exact) = ('','','');
while (my $search = shift @param_vals) {
my $s;
# remove accents
$search = my_unac_string($CHARSET,$search);
while ($search =~ s/\s*("[^"]+")\s*/ /) {
$s .= "$1 ";
}
$search =~ s/^\s+//;
$search =~ s/\s+$//;
# filed e[nr] is exact match bitmask
# 1 = beginning, 2=end, 3=both
my $exact_flag = $q->param("e$i") || 0;
$pre = '"xxbxx ' if ($exact_flag & 1);
$post = ' xxexx"' if ($exact_flag & 2);
# add qotes on other side
if ($q->param("e$i")) {
$pre = '"' if (! $pre);
$post = '"' if (! $post);
# what about wildcards?
$wc = '';
$wc = '*' if ($q->param("e$i") & 4);
$exact = '_exact';
}
foreach (split(/\s+/,$search)) {
if (m/^([+-])(\S+)/) {
$s.= ($s) ? "and " : "";
$s.="not " if ($1 eq "-");
$s.=$2.$wc." ";
} elsif (m/^\s*(and|or|not)\s*$/i) {
$s.=$_." ";
# don't add * to words with less than x chars
} elsif (length($_) <= $MIN_WILDCARD) {
$s.=$_." ";
} else {
$s.=$_.$wc." ";
}
}
$s =~ s/\*+/*/g;
$s =~ s/[()]//g; # () are used in query language
$s = $pre.$s.$post if ($q->param("e$i"));
push @swish_q,$s;
}
# FIXME default operator for multi-value fields is or. There is
# no way to change it, except here for now. Is there need?
push @s_arr, $q->param("f$i")."_swish".$exact."=(".join(" or ",@swish_q).")";
}
my $tmpl = $self->load_tmpl(url_ex($q,'results.html'), global_vars => 1, die_on_bad_params => 0);
sub esc_html {
my $html = shift;
$html =~ s/</</g;
$html =~ s/>/>/g;
return $html;
}
my $sort = 'swishrank';
if ($q->param("sort")) {
$sort = 'headline';
push @persist_vars, "sort";
}
my $sortby = $q->param("sortby");
if ($sortby) {
$sort = $sortby;
push @persist_vars, "sortby";
}
# used to filter entries in index and swish
my $filter = $q->param("filter");
# construct swish query
my $sw_q = join(" and ",@s_arr);
if (@path_arr && $q->param('show_full')) {
$sw_q .= " and (swishdocpath=\"";
$sw_q .= join("\" or swishdocpath=\"",@path_arr);
$sw_q .= "\")";
$tmpl->param('full',1); # show full records
# } elsif (@path_arr && $#path_arr == 0) {
# # I will assume that it's a filter since there isn't show_full
# $filter = shift @path_arr;
} elsif ($q->param('show_full')) {
# just show full path, no path defined
$tmpl->param('full',1);
} else {
$tmpl->param('full',0);
}
if ($filter) {
$sw_q .= " and (swishdocpath=\"$filter\")" unless (@path_arr);
push @persist_vars, "filter";
$url_params->{'filter'} = $filter;
$url_params_persist->{'filter'} = $filter;
}
my $swish_msg = ' ';
# create new swish instance
my $swish = SWISH::API->new($INDEX);
$swish_msg .= $swish->ErrorString." ".$swish->LastErrorMsg if $swish->Error;
# execute query and get number of results from SWISH-E
my $search = $swish->New_Search_Object;
$search->SetSort($sort);
my $results = $search->Execute($sw_q);
$swish_msg .= $swish->ErrorString." ".$swish->LastErrorMsg if $swish->Error;
my $hits = $results->Hits;
$tmpl->param('hits',$hits);
my $search_msg = $sw_q;
$search_msg .= '<em>'.$swish_msg.'</em>' if ($swish_msg);
$tmpl->param('search', $search_msg);
$tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
$tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
# URL parametars for search results
sub cook_url_params {
my $hash = shift || return;
return join("&", map {
my $var = $_;
if (ref($hash->{$var}) eq 'ARRAY') {
join('&',
map { $var.'='.$_ } @{$hash->{$var}}
);
} else {
$var."=".$hash->{$var};
}
} keys %{$hash});
}
$tmpl->param('url_params',"?".cook_url_params($url_params));
$tmpl->param('url_params_paths',"?".cook_url_params($url_params).'&'.join("&",map { my $t = $_; $t =~ s/\#/%23/g; "path=$t"; } @path_arr));
#
# build pager
#
my $current_page = $q->param('PAGER_offset') || 1;
my $pager = Data::Pageset->new({
'total_entries' => $hits,
'entries_per_page' => $ON_PAGE,
'current_page' => $current_page,
'pages_per_set' => $pages_per_set,
});
$results->SeekResult( $pager->first - 1 );
# get number of entries on this page
my $i = $pager->entries_on_this_page;
# results from swish for template
my @pager_data_list;
for(my $i=$pager->first; $i<=$pager->last; $i++) {
my $result = $results->NextResult;
last if (! $result);
my $r = {
nr => $i,
path => $result->Property('swishdocpath'),
headline => esc_html($from_utf8->convert($result->Property('headline'))),
rank => $result->Property('swishrank')
};
#$r->{html} = back2html($from_utf8->convert($result->Property('html')), cook_url_params($url_params_persist)) if ($q->param('show_full'));
$r->{html} = back2html($from_utf8->convert($result->Property('html')), $filter ? 'filter='.$filter : '') if ($q->param('show_full'));
push @pager_data_list, $r;
}
# put something in template
make_pager($q, $tmpl, $pager);
make_pager_vars($q, $tmpl, @persist_vars);
$tmpl->param('PAGER_DATA_LIST', \@pager_data_list);
my $html = $tmpl->output;
return in_template($q,$html);
}
sub show_index {
my $self = shift;
my $i = shift; # field number
my $q = $self->query();
my $field = $q->param("f$i");
my $limit = $q->param("v$i");
my $filter = $q->param("filter");
my $html;
my $index = new index_DBI(
$cfg_global->val('global', 'dbi_dbd'),
$cfg_global->val('global', 'dbi_dsn'),
$cfg_global->val('global', 'dbi_user'),
$cfg_global->val('global', 'dbi_passwd') || ''
);
my $total = $index->count($field,$limit,$filter);
if (! defined($total)) {
my $tmpl = $self->load_tmpl(url_ex($q,'no_index.html'));
$tmpl->param('field',$field);
$html = $tmpl->output;
return $html;
}
my $tmpl = $self->load_tmpl(url_ex($q,'index_res.html'), global_vars => 1, die_on_bad_params => 0);
$tmpl->param('field',$field);
$tmpl->param('limit',$limit);
$tmpl->param('total',$total);
$tmpl->param('filter',$filter);
# FIXME I should set offset and leave out limit from fetch!!
# if (! $q->param("PAGER_offset") {
# $q->param("Pager_offet)
# }
#
# build pager
#
my $pager = Data::Pageset->new({
'total_entries' => $total,
'entries_per_page' => $ON_PAGE,
'current_page' => $q->param('PAGER_offset') || 1,
'pages_per_set' => $pages_per_set
});
my @persist_vars = qw{rm f$i v$i f$i_index offset};
make_pager($q, $tmpl, $pager);
make_pager_vars($q, $tmpl, @persist_vars);
my @pager_data_list = $index->fetch($field,$limit, $pager->first - 1, $pager->entries_on_this_page, $filter);
$tmpl->param('PAGER_DATA_LIST', \@pager_data_list);
return in_template($q,$tmpl->output);
}
1;
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