git.rot13.org Git - webpac/blob - WebPac.pm

   1 package WebPac;
   2
   3 use base 'CGI::Application';
   4 use strict;
   5
   6 use HTML::Pager;
   7 use HTML::FillInForm;
   8 use SWISH;
   9 use Text::Iconv;
  10 use DBI;
  11 use Config::IniFiles;
  12 use Text::Unaccent;
  13
  14 use lib '..';
  15 use index_DBI_cache;
  16 use back2html;
  17
  18
  19 # read global.conf configuration
  20 my $cfg_global = new Config::IniFiles( -file => '../global.conf' ) || die "can't open 'global.conf'";
  21
  22 # configuration options from global.conf
  23 my $TEMPLATE_PATH = $cfg_global->val('webpac', 'template_html') || die "need template_html in global.conf, section webpac";
  24 my $CHARSET = $cfg_global->val('webpac', 'charset') || 'ISO-8859-1';
  25 my $SWISH = $cfg_global->val('webpac', 'swish') || '/usr/bin/swish-e';
  26 my $INDEX = $cfg_global->val('webpac', 'index') || die "need index in global.conf, section webpac";
  27 my $MAX_HITS = $cfg_global->val('webpac', 'max_hits') || 0;
  28 my $ON_PAGE =$cfg_global->val('webpac', 'on_page') || 10;
  29 my $MIN_WILDCARD =$cfg_global->val('webpac', 'min_wildcard') || 1;
  30 my $TEMPLATE =$cfg_global->val('webpac', 'template');
  31 my $UNAC_FILTER =$cfg_global->val('global', 'unac_filter');
  32
  33 if ($UNAC_FILTER) {
  34         require $UNAC_FILTER;
  35 }
  36
  37 Text::Iconv->raise_error(0);     # Conversion errors raise exceptions
  38
  39 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
  40
  41
  42 sub setup {
  43         my $self = shift;
  44         $self->tmpl_path($TEMPLATE_PATH);
  45         $self->run_modes(
  46                 'search' => 'show_search_form',
  47                 'results' => 'show_results_list',
  48 #               'user' => 'show_user_detail',
  49                 'index' => 'show_index',
  50         );
  51         $self->start_mode('search');
  52         $self->mode_param('rm');
  53
  54         $self->header_props(-charset=>$CHARSET);
  55 }
  56
  57 sub in_template {
  58         my $html = shift || "This page is left unintentionally blank";
  59         return $html if (! defined($TEMPLATE));
  60         if (open(T, $TEMPLATE)) {
  61                 my $template_html = join("\n",<T>);
  62                 close(T);
  63                 $template_html =~ s/##webpac##/$html/gsi;
  64                 return $template_html;
  65         } else {
  66                 return "Can't read template '$TEMPLATE'";
  67         }
  68 }
  69
  70 sub show_search_form {
  71         my $self = shift;
  72
  73         # Get the CGI.pm query object
  74         my $q = $self->query();
  75
  76         my $tmpl = $self->load_tmpl('search.html');
  77         my $html = $tmpl->output;
  78
  79         my $fif = new HTML::FillInForm;
  80
  81         return in_template($fif->fill(scalarref => \$html, fobject => $q,
  82                 target => 'search'));
  83 }
  84
  85 sub show_results_list {
  86         my $self = shift;
  87
  88         my $q = $self->query();
  89
  90         my @swish_results;      # results from swish
  91
  92         # load template for this page
  93
  94         my @s_arr;      # all queries are located here
  95
  96         my @path_arr = $q->param('path');
  97         my $full = $q->param('full');
  98
  99         my @persist_vars = ( 'rm' );
 100         my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.$q->param('PAGER_offset') || 0 );
 101
 102         # support parametars "f" and "v" for start
 103         for(my $i = ""; $i <=30; $i++) {
 104
 105                 return show_index($self, $i) if ($q->param("f".$i."_index"));
 106
 107                 next if (! $q->param("v$i"));
 108                 next if (! $q->param("f$i"));
 109
 110                 push @persist_vars, "f$i";
 111                 push @persist_vars, "v$i";
 112                 push @persist_vars, "e$i" if ($q->param("e$i"));
 113
 114                 push @url_params,"f$i=".$q->url_param("f$i");
 115                 foreach my $v ($q->url_param("v$i")) {
 116                         push @url_params,"v$i=$v";
 117                 }
 118                 push @url_params,"e$i=".$q->url_param("e$i");
 119
 120                 my $wc="*";     # swish wildcard
 121                 $wc="" if ($i eq "");   # don't apply wildcard on field 0
 122
 123                 # re-write query from +/- to and/and not
 124                 my @param_vals = $q->param("v$i");
 125                 my @swish_q;
 126                 my ($pre,$post,$exact) = ('','','');
 127                 while (my $search = shift @param_vals) {
 128                         my $s;
 129                         # remove accents
 130                         $search = unac_string($CHARSET,$search);
 131                         while ($search =~ s/\s*("[^"]+")\s*/ /) {
 132                                 $s .= "$1 ";
 133                         }
 134                         $search =~ s/^\s+//;
 135                         $search =~ s/\s+$//;
 136
 137                         # filed e[nr] is exact match bitmask
 138                         # 1 = beginning, 2=end, 3=both
 139                         $pre = '"xxbxx ' if ($q->param("e$i") & 1);
 140                         $post = ' xxexx"' if ($q->param("e$i") & 2);
 141                         # add qotes on other side
 142                         if ($q->param("e$i")) {
 143                                 $pre = '"' if (! $pre);
 144                                 $post = '"' if (! $post);
 145                                 # what about wildcards?
 146                                 $wc = '';
 147                                 $wc = '*' if ($q->param("e$i") & 4);
 148                                 $exact = '_exact';
 149                         }
 150
 151                         foreach (split(/\s+/,$search)) {
 152                                 if (m/^([+-])(\S+)/) {
 153                                         $s.= ($s) ? "and " : "";
 154                                         $s.="not " if ($1 eq "-");
 155                                         $s.=$2.$wc." ";
 156                                 } elsif (m/^\s*(and|or|not)\s*$/i) {
 157                                         $s.=$_." ";
 158                                 # don't add * to words with less than x chars
 159                                 } elsif (length($_) <= $MIN_WILDCARD) {
 160                                         $s.=$_." ";
 161                                 } else {
 162                                         $s.=$_.$wc." ";
 163                                 }
 164                         }
 165                         $s =~ s/\*+/*/g;
 166                         $s = $pre.$s.$post if ($q->param("e$i"));
 167                         push @swish_q,$s;
 168                 }
 169                 # FIXME default operator for multi-value fields is or. There is
 170                 # no way to change it, except here for now. Is there need?
 171                 push @s_arr, $q->param("f$i")."_swish".$exact."=(".join(" or ",@swish_q).")";
 172         }
 173
 174         my $tmpl = $self->load_tmpl('results.html', global_vars => 1);
 175
 176         sub esc_html {
 177                 my $html = shift;
 178                 $html =~ s/</&lt;/g;
 179                 $html =~ s/>/&gt;/g;
 180                 return $html;
 181         }
 182
 183         # call swish
 184         my $sh = SWISH->connect('Fork',
 185                 prog     => $SWISH,
 186                 indexes  => $INDEX,
 187                 properties  => [qw/swishdocpath swishrank swishtitle headline html/],
 188                 results  => sub {
 189                         my ($sh,$hit) = @_;
 190
 191                         push @swish_results, {
 192                                 nr => ($#swish_results + 2),
 193                                 path => $hit->swishdocpath,
 194                                 headline => esc_html($from_utf8->convert($hit->headline)),
 195                                 html => back2html($from_utf8->convert($hit->html)),
 196                                 rank => $hit->swishrank };
 197
 198                 },
 199                 #startnum => 0,
 200                 maxhits => $MAX_HITS
 201         );
 202
 203         die $SWISH::errstr unless $sh;
 204         # construct swish query
 205         my $sw_q = join(" and ",@s_arr);
 206         if (@path_arr && $q->param('show_full')) {
 207                 $sw_q .= "and (swishdocpath=\"";
 208                 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
 209                 $sw_q .= "\")";
 210                 $tmpl->param('full',1); # show full records
 211         } elsif ($q->param('show_full')) {
 212                 # just show full path, no path defined
 213                 $tmpl->param('full',1);
 214         } else {
 215                 $tmpl->param('full',0);
 216         }
 217
 218         my $hits = $sh->query($sw_q);
 219
 220         $tmpl->param('hits',$hits);
 221         $tmpl->param('search',$sw_q);
 222
 223         $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
 224         $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
 225
 226         $tmpl->param('url_params',"?".join("&",@url_params));
 227
 228         # create a Pager object
 229         my $pager = HTML::Pager->new(
 230                 # required parameters
 231                 query => $q,
 232                 get_data_callback => sub {
 233                         my ($offset, $rows) = @_;
 234
 235                         my @result;
 236                         for (my $i=0; $i<$rows; $i++) {
 237                                 my $r = $swish_results[$offset+$i];
 238                                 if ($r && $tmpl->param('full')) {
 239                                         push @result, $r;
 240                                 } elsif ($r) {
 241                                         # if not full output, skip html
 242                                         delete $r->{html};
 243                                         push @result, $r;
 244                                 }
 245                         }
 246                         return \@result;
 247                 },
 248                 rows => $hits,
 249                 page_size => $ON_PAGE,
 250                 # some optional parameters
 251                 persist_vars => [ @persist_vars ],
 252                 #cell_space_color => '#000000',
 253                 #cell_background_color => '#ffffff',
 254                 #nav_background_color => '#dddddd',
 255                 #javascript_presubmit => 'last_minute_javascript()',
 256                 debug => 1,
 257                 template => $tmpl,
 258         );
 259
 260         my $html = $pager->output;
 261
 262         return in_template($html);
 263 }
 264
 265 sub show_index {
 266         my $self = shift;
 267         my $i = shift;          # field number
 268
 269         my $q = $self->query();
 270
 271         my $field = $q->param("f$i");
 272         my $limit = $q->param("v$i");
 273
 274         my $html;
 275
 276         my $index = new index_DBI(
 277                 $cfg_global->val('global', 'dbi_dbd'),
 278                 $cfg_global->val('global', 'dbi_dsn'),
 279                 $cfg_global->val('global', 'dbi_user'),
 280                 $cfg_global->val('global', 'dbi_passwd') || ''
 281         );
 282
 283         my $total = $index->count($field,$limit);
 284         if (! $total) {
 285                 my $tmpl = $self->load_tmpl('no_index.html');
 286                 $tmpl->param('field',$field);
 287                 $html = $tmpl->output;
 288                 return $html;
 289         }
 290
 291         my $tmpl = $self->load_tmpl('index_res.html', global_vars => 1);
 292         $tmpl->param('field',$field);
 293         $tmpl->param('limit',$limit);
 294         $tmpl->param('total',$total);
 295
 296 # FIXME I should set offset and leave out limit from fetch!!
 297 #       if (! $q->param("PAGER_offset") {
 298 #               $q->param("Pager_offet)
 299 #       }
 300
 301         my $pager = HTML::Pager->new(
 302                 query => $q,
 303                 get_data_callback => sub {
 304                         my ($offset, $rows) = @_;
 305
 306                         my @result = $index->fetch($field,$limit, $offset, $rows);
 307                         return \@result;
 308                 },
 309                 rows => $total,
 310                 page_size => $ON_PAGE,
 311                 persist_vars => [
 312                         'rm',
 313                         "f$i", "v$i", "f".$i."_index",
 314                         'offset',
 315                         ],
 316                 debug => 1,
 317                 template => $tmpl,
 318         );
 319
 320         return in_template($pager->output);
 321 }
 322
 323 1;