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 my $BASE_PATH =$cfg_global->val('webpac', 'base_path');
  33
  34 if ($UNAC_FILTER) {
  35         require $UNAC_FILTER;
  36 }
  37
  38 Text::Iconv->raise_error(0);     # Conversion errors raise exceptions
  39
  40 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
  41
  42 # use path from cgi script to support templates in subdirs
  43 sub url_ex {
  44         my $q = shift || die "suff2file needs CGI object!";
  45         my $tpl = shift || die "url_ex needs template name!";
  46         return suff2file($BASE_PATH, $q->url(-path => 1),$TEMPLATE_PATH,$tpl);
  47 }
  48
  49 sub suff2file($$$$) {
  50         my ($base_path, $p, $path, $tpl) = @_;
  51
  52         return $tpl if (! $base_path);
  53
  54         # strip everything to and including base path, leaving only
  55         # additional (virtual) path
  56         if ($p =~ s,^.*?$base_path,,) {
  57                 $p =~ s,/*,,g;
  58                 my ($name,$ext) = split(/\./,$tpl);
  59                 $p = $name . $p . "." . $ext;
  60         } else {
  61                 # if unable reset it!
  62                 $p = $tpl;
  63         }
  64
  65         if ( -e "$path/$p") {
  66                 return $p;
  67         } else {
  68                 return $tpl;
  69         }
  70
  71 }
  72
  73 sub setup {
  74         my $self = shift;
  75         $self->tmpl_path($TEMPLATE_PATH);
  76         $self->run_modes(
  77                 'search' => 'show_search_form',
  78                 'results' => 'show_results_list',
  79 #               'user' => 'show_user_detail',
  80                 'index' => 'show_index',
  81         );
  82         $self->start_mode('search');
  83         $self->mode_param('rm');
  84
  85         $self->header_props(-charset=>$CHARSET);
  86 }
  87
  88 sub in_template {
  89         my $q = shift || die "need CGI object!";
  90         my $html = shift || die "This page is left unintentionally blank";
  91         return $html if (! defined($TEMPLATE));
  92
  93         my ($dir,$tpl);
  94         if ($TEMPLATE =~ m,^(.*?/*)([^/]+)$,) {
  95                 ($dir,$tpl) = ($1,$2);
  96         } else {
  97                 die "can't parse TEMPLATE path";
  98         }
  99
 100         my $master_tpl = suff2file($BASE_PATH, $q->url(-path => 1),$dir,$tpl);
 101         if (open(T, $master_tpl)) {
 102                 my $template_html = join("\n",<T>);
 103                 close(T);
 104                 $template_html =~ s/##webpac##/$html/gsi;
 105                 return $template_html;
 106         } else {
 107                 return "Can't read template '$master_tpl'";
 108         }
 109 }
 110
 111 sub show_search_form {
 112         my $self = shift;
 113
 114         # Get the CGI.pm query object
 115         my $q = $self->query();
 116
 117         my $tmpl = $self->load_tmpl(url_ex($q,'search.html'));
 118         my $html = $tmpl->output;
 119
 120         my $fif = new HTML::FillInForm;
 121
 122         return in_template($q,$fif->fill(scalarref => \$html, fobject => $q,
 123                 target => 'search'));
 124 }
 125
 126 sub show_results_list {
 127         my $self = shift;
 128
 129         my $q = $self->query();
 130
 131         my @swish_results;      # results from swish
 132
 133         # load template for this page
 134
 135         my @s_arr;      # all queries are located here
 136
 137         my @path_arr = $q->param('path');
 138         my $full = $q->param('full');
 139
 140         my @persist_vars = ( 'rm' );
 141         my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.$q->param('PAGER_offset') || 0 );
 142
 143         # support parametars "f" and "v" for start
 144         for(my $i = ""; $i <=30; $i++) {
 145
 146                 return show_index($self, $i) if ($q->param("f".$i."_index"));
 147
 148                 next if (! $q->param("v$i"));
 149                 next if (! $q->param("f$i"));
 150
 151                 push @persist_vars, "f$i";
 152                 push @persist_vars, "v$i";
 153                 push @persist_vars, "e$i" if ($q->param("e$i"));
 154
 155                 push @url_params,"f$i=".$q->url_param("f$i");
 156                 foreach my $v ($q->url_param("v$i")) {
 157                         push @url_params,"v$i=$v";
 158                 }
 159                 push @url_params,"e$i=".$q->url_param("e$i");
 160
 161                 my $wc="*";     # swish wildcard
 162                 $wc="" if ($i eq "");   # don't apply wildcard on field 0
 163
 164                 # re-write query from +/- to and/and not
 165                 my @param_vals = $q->param("v$i");
 166                 my @swish_q;
 167                 my ($pre,$post,$exact) = ('','','');
 168                 while (my $search = shift @param_vals) {
 169                         my $s;
 170                         # remove accents
 171                         $search = unac_string($CHARSET,$search);
 172                         while ($search =~ s/\s*("[^"]+")\s*/ /) {
 173                                 $s .= "$1 ";
 174                         }
 175                         $search =~ s/^\s+//;
 176                         $search =~ s/\s+$//;
 177
 178                         # filed e[nr] is exact match bitmask
 179                         # 1 = beginning, 2=end, 3=both
 180                         $pre = '"xxbxx ' if ($q->param("e$i") & 1);
 181                         $post = ' xxexx"' if ($q->param("e$i") & 2);
 182                         # add qotes on other side
 183                         if ($q->param("e$i")) {
 184                                 $pre = '"' if (! $pre);
 185                                 $post = '"' if (! $post);
 186                                 # what about wildcards?
 187                                 $wc = '';
 188                                 $wc = '*' if ($q->param("e$i") & 4);
 189                                 $exact = '_exact';
 190                         }
 191
 192                         foreach (split(/\s+/,$search)) {
 193                                 if (m/^([+-])(\S+)/) {
 194                                         $s.= ($s) ? "and " : "";
 195                                         $s.="not " if ($1 eq "-");
 196                                         $s.=$2.$wc." ";
 197                                 } elsif (m/^\s*(and|or|not)\s*$/i) {
 198                                         $s.=$_." ";
 199                                 # don't add * to words with less than x chars
 200                                 } elsif (length($_) <= $MIN_WILDCARD) {
 201                                         $s.=$_." ";
 202                                 } else {
 203                                         $s.=$_.$wc." ";
 204                                 }
 205                         }
 206                         $s =~ s/\*+/*/g;
 207                         $s = $pre.$s.$post if ($q->param("e$i"));
 208                         push @swish_q,$s;
 209                 }
 210                 # FIXME default operator for multi-value fields is or. There is
 211                 # no way to change it, except here for now. Is there need?
 212                 push @s_arr, $q->param("f$i")."_swish".$exact."=(".join(" or ",@swish_q).")";
 213         }
 214
 215         my $tmpl = $self->load_tmpl(url_ex($q,'results.html'), global_vars => 1);
 216
 217         sub esc_html {
 218                 my $html = shift;
 219                 $html =~ s/</&lt;/g;
 220                 $html =~ s/>/&gt;/g;
 221                 return $html;
 222         }
 223
 224         my $sort = 'swishrank';
 225         if ($q->param("sort")) {
 226                 $sort = 'headline';
 227                 push @persist_vars, "sort";
 228         }
 229
 230         # call swish
 231         my $sh = SWISH->connect('Fork',
 232                 prog     => $SWISH,
 233                 indexes  => $INDEX,
 234                 properties  => [qw/swishdocpath swishrank swishtitle headline html/],
 235                 results  => sub {
 236                         my ($sh,$hit) = @_;
 237
 238                         push @swish_results, {
 239                                 nr => ($#swish_results + 2),
 240                                 path => $hit->swishdocpath,
 241                                 headline => esc_html($from_utf8->convert($hit->headline)),
 242                                 html => back2html($from_utf8->convert($hit->html)),
 243                                 rank => $hit->swishrank };
 244
 245                 },
 246                 #startnum => 0,
 247                 maxhits => $MAX_HITS,
 248                 sortorder => $sort,
 249         );
 250
 251         die $SWISH::errstr unless $sh;
 252         # construct swish query
 253         my $sw_q = join(" and ",@s_arr);
 254         if (@path_arr && $q->param('show_full')) {
 255                 $sw_q .= "and (swishdocpath=\"";
 256                 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
 257                 $sw_q .= "\")";
 258                 $tmpl->param('full',1); # show full records
 259         } elsif ($q->param('show_full')) {
 260                 # just show full path, no path defined
 261                 $tmpl->param('full',1);
 262         } else {
 263                 $tmpl->param('full',0);
 264         }
 265
 266         my $hits = $sh->query($sw_q);
 267
 268         $tmpl->param('hits',$hits);
 269         $tmpl->param('search',$sw_q);
 270
 271         $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
 272         $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
 273
 274         $tmpl->param('url_params',"?".join("&",@url_params));
 275
 276         # create a Pager object
 277         my $pager = HTML::Pager->new(
 278                 # required parameters
 279                 query => $q,
 280                 get_data_callback => sub {
 281                         my ($offset, $rows) = @_;
 282
 283                         my @result;
 284                         for (my $i=0; $i<$rows; $i++) {
 285                                 my $r = $swish_results[$offset+$i];
 286                                 if ($r && $tmpl->param('full')) {
 287                                         push @result, $r;
 288                                 } elsif ($r) {
 289                                         # if not full output, skip html
 290                                         delete $r->{html};
 291                                         push @result, $r;
 292                                 }
 293                         }
 294                         return \@result;
 295                 },
 296                 rows => $hits,
 297                 page_size => $ON_PAGE,
 298                 # some optional parameters
 299                 persist_vars => [ @persist_vars ],
 300                 #cell_space_color => '#000000',
 301                 #cell_background_color => '#ffffff',
 302                 #nav_background_color => '#dddddd',
 303                 #javascript_presubmit => 'last_minute_javascript()',
 304                 debug => 1,
 305                 template => $tmpl,
 306         );
 307
 308         my $html = $pager->output;
 309
 310         return in_template($q,$html);
 311 }
 312
 313 sub show_index {
 314         my $self = shift;
 315         my $i = shift;          # field number
 316
 317         my $q = $self->query();
 318
 319         my $field = $q->param("f$i");
 320         my $limit = $q->param("v$i");
 321
 322         my $html;
 323
 324         my $index = new index_DBI(
 325                 $cfg_global->val('global', 'dbi_dbd'),
 326                 $cfg_global->val('global', 'dbi_dsn'),
 327                 $cfg_global->val('global', 'dbi_user'),
 328                 $cfg_global->val('global', 'dbi_passwd') || ''
 329         );
 330
 331         my $total = $index->count($field,$limit);
 332         if (! $total) {
 333                 my $tmpl = $self->load_tmpl(url_ex($q,'no_index.html'));
 334                 $tmpl->param('field',$field);
 335                 $html = $tmpl->output;
 336                 return $html;
 337         }
 338
 339         my $tmpl = $self->load_tmpl(url_ex($q,'index_res.html'), global_vars => 1);
 340         $tmpl->param('field',$field);
 341         $tmpl->param('limit',$limit);
 342         $tmpl->param('total',$total);
 343
 344 # FIXME I should set offset and leave out limit from fetch!!
 345 #       if (! $q->param("PAGER_offset") {
 346 #               $q->param("Pager_offet)
 347 #       }
 348
 349         my $pager = HTML::Pager->new(
 350                 query => $q,
 351                 get_data_callback => sub {
 352                         my ($offset, $rows) = @_;
 353
 354                         my @result = $index->fetch($field,$limit, $offset, $rows);
 355                         return \@result;
 356                 },
 357                 rows => $total,
 358                 page_size => $ON_PAGE,
 359                 persist_vars => [
 360                         'rm',
 361                         "f$i", "v$i", "f".$i."_index",
 362                         'offset',
 363                         ],
 364                 debug => 1,
 365                 template => $tmpl,
 366         );
 367
 368         return in_template($q,$pager->output);
 369 }
 370
 371 1;