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, $q->url(-absolute => 1,-path => 1),$TEMPLATE_PATH,$tpl);
  47 }
  48
  49 sub suff2file($$$$) {
  50         my ($base_path, $p, $path, $tpl) = @_;
  51
  52         return $tpl if (! $base_path);
  53
  54         # strip everything to and including base path, leaving only
  55         # additional (virtual) path
  56         if ($base_path eq "/") {
  57                 $p =~ s,/*,,g;
  58                 my ($name,$ext) = split(/\./,$tpl);
  59                 $p = $name . "-" . $p . "." . $ext;
  60         } elsif ($p =~ s,^.*?$base_path,,) {
  61                 $p =~ s,/*,,g;
  62                 my ($name,$ext) = split(/\./,$tpl);
  63                 $p = $name . $p . "." . $ext;
  64         } else {
  65                 # if unable reset it!
  66                 $p = $tpl;
  67         }
  68
  69         if ( -e "$path/$p") {
  70                 return $p;
  71         } else {
  72                 return $tpl;
  73         }
  74
  75 }
  76
  77 sub setup {
  78         my $self = shift;
  79         $self->tmpl_path($TEMPLATE_PATH);
  80         $self->run_modes(
  81                 'search' => 'show_search_form',
  82                 'results' => 'show_results_list',
  83 #               'user' => 'show_user_detail',
  84                 'index' => 'show_index',
  85         );
  86         $self->start_mode('search');
  87         $self->mode_param('rm');
  88
  89         $self->header_props(-charset=>$CHARSET);
  90 }
  91
  92 sub in_template {
  93         my $q = shift || die "need CGI object!";
  94         my $html = shift || die "This page is left unintentionally blank";
  95         return $html if (! defined($TEMPLATE));
  96
  97         my ($dir,$tpl);
  98         if ($TEMPLATE =~ m,^(.*?/*)([^/]+)$,) {
  99                 ($dir,$tpl) = ($1,$2);
 100         } else {
 101                 die "can't parse TEMPLATE path";
 102         }
 103
 104         my $master_tpl = suff2file($BASE_PATH, $q->url(-absolute => 1, -path => 1),$dir,$tpl);
 105         if (open(T, $master_tpl)) {
 106                 my $template_html = join("\n",<T>);
 107                 close(T);
 108                 $template_html =~ s/##webpac##/$html/gsi;
 109                 return $template_html;
 110         } else {
 111                 return "Can't read template '$master_tpl'";
 112         }
 113 }
 114
 115 sub show_search_form {
 116         my $self = shift;
 117
 118         # Get the CGI.pm query object
 119         my $q = $self->query();
 120
 121         my $tmpl = $self->load_tmpl(url_ex($q,'search.html'));
 122         my $html = $tmpl->output;
 123
 124         my $fif = new HTML::FillInForm;
 125
 126         return in_template($q,$fif->fill(scalarref => \$html, fobject => $q,
 127                 target => 'search'));
 128 }
 129
 130 sub show_results_list {
 131         my $self = shift;
 132
 133         my $q = $self->query();
 134
 135         my @swish_results;      # results from swish
 136
 137         # load template for this page
 138
 139         my @s_arr;      # all queries are located here
 140
 141         my @path_arr = $q->param('path');
 142         my $full = $q->param('full');
 143
 144         my @persist_vars = ( 'rm' );
 145         my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.$q->param('PAGER_offset') || 0 );
 146
 147         # support parametars "f" and "v" for start
 148         for(my $i = ""; $i <=30; $i++) {
 149
 150                 return show_index($self, $i) if ($q->param("f".$i."_index"));
 151
 152                 next if (! $q->param("v$i"));
 153                 next if (! $q->param("f$i"));
 154
 155                 push @persist_vars, "f$i";
 156                 push @persist_vars, "v$i";
 157                 push @persist_vars, "e$i" if ($q->param("e$i"));
 158
 159                 push @url_params,"f$i=".$q->url_param("f$i");
 160                 foreach my $v ($q->url_param("v$i")) {
 161                         push @url_params,"v$i=$v";
 162                 }
 163                 push @url_params,"e$i=".$q->url_param("e$i");
 164
 165                 my $wc="*";     # swish wildcard
 166                 $wc="" if ($i eq "");   # don't apply wildcard on field 0
 167
 168                 # re-write query from +/- to and/and not
 169                 my @param_vals = $q->param("v$i");
 170                 my @swish_q;
 171                 my ($pre,$post,$exact) = ('','','');
 172                 while (my $search = shift @param_vals) {
 173                         my $s;
 174                         # remove accents
 175                         $search = unac_string($CHARSET,$search);
 176                         while ($search =~ s/\s*("[^"]+")\s*/ /) {
 177                                 $s .= "$1 ";
 178                         }
 179                         $search =~ s/^\s+//;
 180                         $search =~ s/\s+$//;
 181
 182                         # filed e[nr] is exact match bitmask
 183                         # 1 = beginning, 2=end, 3=both
 184                         $pre = '"xxbxx ' if ($q->param("e$i") & 1);
 185                         $post = ' xxexx"' if ($q->param("e$i") & 2);
 186                         # add qotes on other side
 187                         if ($q->param("e$i")) {
 188                                 $pre = '"' if (! $pre);
 189                                 $post = '"' if (! $post);
 190                                 # what about wildcards?
 191                                 $wc = '';
 192                                 $wc = '*' if ($q->param("e$i") & 4);
 193                                 $exact = '_exact';
 194                         }
 195
 196                         foreach (split(/\s+/,$search)) {
 197                                 if (m/^([+-])(\S+)/) {
 198                                         $s.= ($s) ? "and " : "";
 199                                         $s.="not " if ($1 eq "-");
 200                                         $s.=$2.$wc." ";
 201                                 } elsif (m/^\s*(and|or|not)\s*$/i) {
 202                                         $s.=$_." ";
 203                                 # don't add * to words with less than x chars
 204                                 } elsif (length($_) <= $MIN_WILDCARD) {
 205                                         $s.=$_." ";
 206                                 } else {
 207                                         $s.=$_.$wc." ";
 208                                 }
 209                         }
 210                         $s =~ s/\*+/*/g;
 211                         $s = $pre.$s.$post if ($q->param("e$i"));
 212                         push @swish_q,$s;
 213                 }
 214                 # FIXME default operator for multi-value fields is or. There is
 215                 # no way to change it, except here for now. Is there need?
 216                 push @s_arr, $q->param("f$i")."_swish".$exact."=(".join(" or ",@swish_q).")";
 217         }
 218
 219         my $tmpl = $self->load_tmpl(url_ex($q,'results.html'), global_vars => 1);
 220
 221         sub esc_html {
 222                 my $html = shift;
 223                 $html =~ s/</&lt;/g;
 224                 $html =~ s/>/&gt;/g;
 225                 return $html;
 226         }
 227
 228         my $sort = 'swishrank';
 229         if ($q->param("sort")) {
 230                 $sort = 'headline';
 231                 push @persist_vars, "sort";
 232         }
 233
 234         # call swish
 235         my $sh = SWISH->connect('Fork',
 236                 prog     => $SWISH,
 237                 indexes  => $INDEX,
 238                 properties  => [qw/swishdocpath swishrank swishtitle headline html/],
 239                 results  => sub {
 240                         my ($sh,$hit) = @_;
 241
 242                         push @swish_results, {
 243                                 nr => ($#swish_results + 2),
 244                                 path => $hit->swishdocpath,
 245                                 headline => esc_html($from_utf8->convert($hit->headline)),
 246                                 html => back2html($from_utf8->convert($hit->html)),
 247                                 rank => $hit->swishrank };
 248
 249                 },
 250                 #startnum => 0,
 251                 maxhits => $MAX_HITS,
 252                 sortorder => $sort,
 253         );
 254
 255         die $SWISH::errstr unless $sh;
 256         # construct swish query
 257         my $sw_q = join(" and ",@s_arr);
 258         if (@path_arr && $q->param('show_full')) {
 259                 $sw_q .= "and (swishdocpath=\"";
 260                 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
 261                 $sw_q .= "\")";
 262                 $tmpl->param('full',1); # show full records
 263         } elsif ($q->param('show_full')) {
 264                 # just show full path, no path defined
 265                 $tmpl->param('full',1);
 266         } else {
 267                 $tmpl->param('full',0);
 268         }
 269
 270         my $hits = $sh->query($sw_q);
 271
 272         $tmpl->param('hits',$hits);
 273         $tmpl->param('search',$sw_q);
 274
 275         $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
 276         $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
 277
 278         $tmpl->param('url_params',"?".join("&",@url_params));
 279
 280         # create a Pager object
 281         my $pager = HTML::Pager->new(
 282                 # required parameters
 283                 query => $q,
 284                 get_data_callback => sub {
 285                         my ($offset, $rows) = @_;
 286
 287                         my @result;
 288                         for (my $i=0; $i<$rows; $i++) {
 289                                 my $r = $swish_results[$offset+$i];
 290                                 if ($r && $tmpl->param('full')) {
 291                                         push @result, $r;
 292                                 } elsif ($r) {
 293                                         # if not full output, skip html
 294                                         delete $r->{html};
 295                                         push @result, $r;
 296                                 }
 297                         }
 298                         return \@result;
 299                 },
 300                 rows => $hits,
 301                 page_size => $ON_PAGE,
 302                 # some optional parameters
 303                 persist_vars => [ @persist_vars ],
 304                 #cell_space_color => '#000000',
 305                 #cell_background_color => '#ffffff',
 306                 #nav_background_color => '#dddddd',
 307                 #javascript_presubmit => 'last_minute_javascript()',
 308                 debug => 1,
 309                 template => $tmpl,
 310         );
 311
 312         my $html = $pager->output;
 313
 314         return in_template($q,$html);
 315 }
 316
 317 sub show_index {
 318         my $self = shift;
 319         my $i = shift;          # field number
 320
 321         my $q = $self->query();
 322
 323         my $field = $q->param("f$i");
 324         my $limit = $q->param("v$i");
 325
 326         my $html;
 327
 328         my $index = new index_DBI(
 329                 $cfg_global->val('global', 'dbi_dbd'),
 330                 $cfg_global->val('global', 'dbi_dsn'),
 331                 $cfg_global->val('global', 'dbi_user'),
 332                 $cfg_global->val('global', 'dbi_passwd') || ''
 333         );
 334
 335         my $total = $index->count($field,$limit);
 336         if (! $total) {
 337                 my $tmpl = $self->load_tmpl(url_ex($q,'no_index.html'));
 338                 $tmpl->param('field',$field);
 339                 $html = $tmpl->output;
 340                 return $html;
 341         }
 342
 343         my $tmpl = $self->load_tmpl(url_ex($q,'index_res.html'), global_vars => 1);
 344         $tmpl->param('field',$field);
 345         $tmpl->param('limit',$limit);
 346         $tmpl->param('total',$total);
 347
 348 # FIXME I should set offset and leave out limit from fetch!!
 349 #       if (! $q->param("PAGER_offset") {
 350 #               $q->param("Pager_offet)
 351 #       }
 352
 353         my $pager = HTML::Pager->new(
 354                 query => $q,
 355                 get_data_callback => sub {
 356                         my ($offset, $rows) = @_;
 357
 358                         my @result = $index->fetch($field,$limit, $offset, $rows);
 359                         return \@result;
 360                 },
 361                 rows => $total,
 362                 page_size => $ON_PAGE,
 363                 persist_vars => [
 364                         'rm',
 365                         "f$i", "v$i", "f".$i."_index",
 366                         'offset',
 367                         ],
 368                 debug => 1,
 369                 template => $tmpl,
 370         );
 371
 372         return in_template($q,$pager->output);
 373 }
 374
 375 1;