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