/[webpac]/branches/tehnika/WebPac.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /branches/tehnika/WebPac.pm

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Revision 710 - (show annotations)
Sun Sep 11 18:45:50 2005 UTC (15 years, 2 months ago) by dpavlin
File size: 14441 byte(s)
updated branches to head (added cook_url_params)

1 package WebPac;
2
3 use base 'CGI::Application';
4 use strict;
5
6 use HTML::FillInForm;
7 use SWISH::API;
8 use Text::Iconv;
9 use DBI;
10 use Config::IniFiles;
11 use Text::Unaccent;
12 use Data::Pageset;
13 use POSIX qw(locale_h);
14
15 use lib '..';
16 use index_DBI_filter;
17 use back2html;
18
19
20 # read global.conf configuration
21 my $cfg_global = new Config::IniFiles( -file => '../global.conf' ) || die "can't open 'global.conf'";
22
23 # configuration options from global.conf
24 my $TEMPLATE_PATH = $cfg_global->val('webpac', 'template_html') || die "need template_html in global.conf, section webpac";
25 my $CHARSET = $cfg_global->val('webpac', 'charset') || 'ISO-8859-1';
26 my $SWISH = $cfg_global->val('webpac', 'swish') || '/usr/bin/swish-e';
27 my $INDEX = $cfg_global->val('webpac', 'index') || die "need index in global.conf, section webpac";
28 my $MAX_HITS = $cfg_global->val('webpac', 'max_hits') || 0;
29 my $ON_PAGE =$cfg_global->val('webpac', 'on_page') || 10;
30 my $MIN_WILDCARD =$cfg_global->val('webpac', 'min_wildcard') || 1;
31 my $TEMPLATE =$cfg_global->val('webpac', 'template');
32 my $UNAC_FILTER =$cfg_global->val('global', 'my_unac_filter');
33 my $BASE_PATH =$cfg_global->val('webpac', 'base_path');
34 # for pager
35 my $pages_per_set = $cfg_global->val('webpac', 'pages_per_set') || 10;
36 my $locale = $cfg_global->val('locale') || 'hr_HR';
37
38 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
39
40 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
41
42 setlocale(LC_CTYPE, $locale);
43 setlocale(LC_COLLATE, $locale);
44
45 if ($UNAC_FILTER) {
46 require $UNAC_FILTER;
47 } else {
48 sub WebPac::my_unac_string {
49 my ($charset, $string) = (@_);
50 return $string;
51 }
52 }
53
54 # use path from cgi script to support templates in subdirs
55 sub url_ex {
56 my $q = shift || die "suff2file needs CGI object!";
57 my $tpl = shift || die "url_ex needs template name!";
58 return suff2file($BASE_PATH, $q->url(-absolute => 1,-path => 1),$TEMPLATE_PATH,$tpl);
59 }
60
61 sub suff2file($$$$) {
62 my ($base_path, $p, $path, $tpl) = @_;
63
64 return $tpl if (! $base_path);
65
66 # strip everything to and including base path, leaving only
67 # additional (virtual) path
68 if ($base_path eq "/") {
69 $p =~ s,/*,,g;
70 my ($name,$ext) = split(/\./,$tpl);
71 $p = $name . "-" . $p . "." . $ext;
72 } elsif ($p =~ s,^.*?$base_path,,) {
73 $p =~ s,/*,,g;
74 my ($name,$ext) = split(/\./,$tpl);
75 $p = $name . $p . "." . $ext;
76 } else {
77 # if unable reset it!
78 $p = $tpl;
79 }
80
81 if ( -e "$path/$p") {
82 return $p;
83 } else {
84 return $tpl;
85 }
86
87 }
88
89 sub setup {
90 my $self = shift;
91 $self->tmpl_path($TEMPLATE_PATH);
92 $self->run_modes(
93 'search' => 'show_search_form',
94 'results' => 'show_results_list',
95 # 'user' => 'show_user_detail',
96 'index' => 'show_index',
97 );
98 $self->start_mode('search');
99 $self->mode_param('rm');
100
101 $self->header_props(-charset=>$CHARSET);
102 }
103
104 sub in_template {
105 my $q = shift || die "need CGI object!";
106 my $html = shift || die "This page is left unintentionally blank";
107 return $html if (! defined($TEMPLATE));
108
109 my ($dir,$tpl);
110 if ($TEMPLATE =~ m,^(.*?/*)([^/]+)$,) {
111 ($dir,$tpl) = ($1,$2);
112 } else {
113 die "can't parse TEMPLATE path";
114 }
115
116 my $master_tpl = suff2file($BASE_PATH, $q->url(-absolute => 1, -path => 1),$dir,$tpl);
117 if (open(T, $master_tpl)) {
118 my $template_html = join("\n",<T>);
119 close(T);
120 $template_html =~ s/##webpac##/$html/gsi;
121 return $template_html;
122 } else {
123 return "Can't read template '$master_tpl'";
124 }
125 }
126
127 #--------------------------------------------------------------------------
128
129 #
130 # make pager navigation and fill template variables
131 # compatibile with HTML::Pager
132 #
133
134 sub make_pager($$$) {
135 my ($q,$tmpl,$pager) = @_;
136
137 #
138 # pager navigation
139 #
140 my ($pager_prev,$pager_next, $pager_jump) = ('','','');
141
142 my $nav_fmt=qq{ <a href="%s">%s</a> };
143
144 if ($pager->current_page() > $pager->first_page) {
145 $q->param('PAGER_offset', $pager->current_page - 1);
146 $pager_prev .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'&lt;&lt;');
147 }
148
149 if ($pager->previous_set) {
150 $q->param('PAGER_offset', $pager->previous_set);
151 $pager_prev .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'..');
152 }
153
154
155 foreach my $p (@{$pager->pages_in_set()}) {
156 next if ($p <= 0);
157 if($p == $pager->current_page()) {
158 $pager_jump .= "<b>$p</b> ";
159 } else {
160 $q->param('PAGER_offset', $p);
161 $pager_jump .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),$p);
162 }
163 }
164
165 if ($pager->next_set) {
166 $q->param('PAGER_offset', $pager->next_set);
167 $pager_next .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'..');
168 }
169
170 if ($pager->current_page() < $pager->last_page) {
171 $q->param('PAGER_offset', $pager->current_page + 1);
172 $pager_next .= sprintf($nav_fmt,$q->url(-relative=>1, -query=>1),'&gt;&gt;');
173 }
174
175 $tmpl->param('PAGER_PREV', $pager_prev);
176 $tmpl->param('PAGER_JUMP', $pager_jump);
177 $tmpl->param('PAGER_NEXT', $pager_next);
178
179 }
180
181 #
182 # put persisten variables in template
183 #
184
185 sub make_pager_vars {
186 my $q = shift @_;
187 my $tmpl = shift @_;
188 my @persist_vars = @_;
189 my $hidden_vars = '';
190 my $hidden_search = '';
191 foreach my $v (@persist_vars) {
192 foreach my $val ($q->param($v)) {
193 next if (! $val || $val eq '');
194 $val =~ s/"/&quot;/g;
195 $hidden_vars .= '<input type="hidden" name="'.$v.'" value="'.$val.'"/>'."\n";
196 $hidden_search .= '<input type="hidden" name="'.$v.'" value="'.$val.'"/>'."\n" if ($v ne "rm");
197 }
198 }
199
200 $tmpl->param('PAGER_HIDDEN', $hidden_vars);
201 $tmpl->param('SEARCH_HIDDEN', $hidden_search);
202 $tmpl->param('PAGER_JAVASCRIPT', qq#
203 <SCRIPT LANGUAGE="Javascript">
204 <!-- Begin
205 // dummy emulator for HTML::Pager templates
206 function PAGER_set_offset_and_submit() {
207 return true;
208 }
209 // End -->
210 </script>
211 #);
212 }
213
214 #--------------------------------------------------------------------------
215
216 sub show_search_form {
217 my $self = shift;
218
219 # Get the CGI.pm query object
220 my $q = $self->query();
221
222 my $tmpl = $self->load_tmpl(url_ex($q,'search.html'));
223 my $html = $tmpl->output;
224
225 my $fif = new HTML::FillInForm;
226
227 return in_template($q,$fif->fill(scalarref => \$html, fobject => $q,
228 target => 'search'));
229 }
230
231 sub show_results_list {
232 my $self = shift;
233
234 my $q = $self->query();
235
236 # submit was reset?
237 if ($q->param('reset')) {
238 $q->delete_all;
239 return $self->show_search_form();
240 }
241
242 # load template for this page
243
244 my @s_arr; # all queries are located here
245
246 my @path_arr = $q->param('path');
247 my $full = $q->param('full');
248
249 my @persist_vars = ( 'rm', 'persist_search' );
250 my $url_params = {
251 'rm' => 'results',
252 'show_full' => 1,
253 'last_PAGER_offset' => ($q->param('PAGER_offset') || 0),
254 };
255
256 my @persist_search_vars;
257 my $url_params_persist = {};
258 if ($q->param("persist_search")) {
259 @persist_search_vars = split(/\s*,\s*/, $q->param("persist_search"));
260 $url_params_persist->{'persist_search'} = $q->url_param("persist_search");
261 $url_params->{'persist_search'} = $q->url_param("persist_search");
262 }
263
264 # support parametars "f" and "v" for start
265 for(my $i = 0; $i <=30; $i++) {
266
267 $i = '' if ($i == 0);
268
269 return show_index($self, $i) if ($q->param("f".$i."_index"));
270
271 next if (! $q->param("v$i") || $q->param("v$i") eq '');
272 next if (! $q->param("f$i"));
273
274 my $persist = grep(/^$i$/,@persist_search_vars);
275
276 push @persist_vars, "f$i";
277 push @persist_vars, "v$i";
278 push @persist_vars, "e$i" if ($q->param("e$i"));
279
280 # create url parametars (and persistent ones)
281
282 $url_params->{"f$i"} = $q->url_param("f$i");
283 $url_params_persist->{"f$i"} = $q->url_param("f$i") if ($persist);
284
285 foreach my $v ($q->url_param("v$i")) {
286 # escape quotes so that phrase search work
287 $v =~ s/"/%22/g;
288 $url_params->{"v$i"} = $v;
289 $url_params_persist->{"v$i"} = $v if ($persist);
290 }
291
292 if ($q->param("e$i")) {
293 $url_params->{"e$i"} = $q->url_param("e$i");
294 # $url_params_persist->{"e$i"} = $q->url_param("e$i");
295 }
296
297 my $wc="*"; # swish wildcard
298 $wc="" if ($i eq ""); # don't apply wildcard on field 0
299
300 # re-write query from +/- to and/and not
301 my @param_vals = $q->param("v$i");
302 my @swish_q;
303 my ($pre,$post,$exact) = ('','','');
304 while (my $search = shift @param_vals) {
305 my $s;
306 # remove accents
307 $search = my_unac_string($CHARSET,$search);
308 while ($search =~ s/\s*("[^"]+")\s*/ /) {
309 $s .= "$1 ";
310 }
311 $search =~ s/^\s+//;
312 $search =~ s/\s+$//;
313
314 # filed e[nr] is exact match bitmask
315 # 1 = beginning, 2=end, 3=both
316 my $exact_flag = $q->param("e$i") || 0;
317 $pre = '"xxbxx ' if ($exact_flag & 1);
318 $post = ' xxexx"' if ($exact_flag & 2);
319 # add qotes on other side
320 if ($q->param("e$i")) {
321 $pre = '"' if (! $pre);
322 $post = '"' if (! $post);
323 # what about wildcards?
324 $wc = '';
325 $wc = '*' if ($q->param("e$i") & 4);
326 $exact = '_exact';
327 }
328
329 foreach (split(/\s+/,$search)) {
330 if (m/^([+-])(\S+)/) {
331 $s.= ($s) ? "and " : "";
332 $s.="not " if ($1 eq "-");
333 $s.=$2.$wc." ";
334 } elsif (m/^\s*(and|or|not)\s*$/i) {
335 $s.=$_." ";
336 # don't add * to words with less than x chars
337 } elsif (length($_) <= $MIN_WILDCARD) {
338 $s.=$_." ";
339 } else {
340 $s.=$_.$wc." ";
341 }
342 }
343 $s =~ s/\*+/*/g;
344 $s =~ s/[()]//g; # () are used in query language
345 $s = $pre.$s.$post if ($q->param("e$i"));
346 push @swish_q,$s;
347 }
348 # FIXME default operator for multi-value fields is or. There is
349 # no way to change it, except here for now. Is there need?
350 push @s_arr, $q->param("f$i")."_swish".$exact."=(".join(" or ",@swish_q).")";
351 }
352
353 my $tmpl = $self->load_tmpl(url_ex($q,'results.html'), global_vars => 1, die_on_bad_params => 0);
354
355 sub esc_html {
356 my $html = shift;
357 $html =~ s/</&lt;/g;
358 $html =~ s/>/&gt;/g;
359 return $html;
360 }
361
362 my $sort = 'swishrank';
363 if ($q->param("sort")) {
364 $sort = 'headline';
365 push @persist_vars, "sort";
366 }
367
368 my $sortby = $q->param("sortby");
369 if ($sortby) {
370 $sort = $sortby;
371 push @persist_vars, "sortby";
372 }
373 # used to filter entries in index and swish
374 my $filter = $q->param("filter");
375
376 # construct swish query
377 my $sw_q = join(" and ",@s_arr);
378 if (@path_arr && $q->param('show_full')) {
379 $sw_q .= " and (swishdocpath=\"";
380 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
381 $sw_q .= "\")";
382 $tmpl->param('full',1); # show full records
383 # } elsif (@path_arr && $#path_arr == 0) {
384 # # I will assume that it's a filter since there isn't show_full
385 # $filter = shift @path_arr;
386 } elsif ($q->param('show_full')) {
387 # just show full path, no path defined
388 $tmpl->param('full',1);
389 } else {
390 $tmpl->param('full',0);
391 }
392
393 if ($filter) {
394 $sw_q .= " and (swishdocpath=\"$filter\")" unless (@path_arr);
395 push @persist_vars, "filter";
396 $url_params->{'filter'} = $filter;
397 $url_params_persist->{'filter'} = $filter;
398 }
399
400 my $swish_msg = ' ';
401
402 # create new swish instance
403 my $swish = SWISH::API->new($INDEX);
404 $swish_msg .= $swish->ErrorString." ".$swish->LastErrorMsg if $swish->Error;
405
406 # execute query and get number of results from SWISH-E
407 my $search = $swish->New_Search_Object;
408
409 $search->SetSort($sort);
410
411 my $results = $search->Execute($sw_q);
412 $swish_msg .= $swish->ErrorString." ".$swish->LastErrorMsg if $swish->Error;
413
414 my $hits = $results->Hits;
415
416 $tmpl->param('hits',$hits);
417 my $search_msg = $sw_q;
418 $search_msg .= '<em>'.$swish_msg.'</em>' if ($swish_msg);
419 $tmpl->param('search', $search_msg);
420
421 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
422 $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
423
424 # URL parametars for search results
425 sub cook_url_params {
426 my $hash = shift || return;
427 return join("&", map { $_."=".$hash->{$_} } keys %{$hash});
428 }
429
430 $tmpl->param('url_params',"?".cook_url_params($url_params));
431 $tmpl->param('url_params_paths',"?".cook_url_params($url_params).'&'.join("&",map { my $t = $_; $t =~ s/\#/%23/g; "path=$t"; } @path_arr));
432
433
434
435 #
436 # build pager
437 #
438
439 my $current_page = $q->param('PAGER_offset') || 1;
440
441 my $pager = Data::Pageset->new({
442 'total_entries' => $hits,
443 'entries_per_page' => $ON_PAGE,
444 'current_page' => $current_page,
445 'pages_per_set' => $pages_per_set,
446 });
447
448 $results->SeekResult( $pager->first - 1 );
449
450 # get number of entries on this page
451 my $i = $pager->entries_on_this_page;
452
453 # results from swish for template
454 my @pager_data_list;
455
456 for(my $i=$pager->first; $i<=$pager->last; $i++) {
457
458 my $result = $results->NextResult;
459 last if (! $result);
460
461 my $r = {
462 nr => $i,
463 path => $result->Property('swishdocpath'),
464 headline => esc_html($from_utf8->convert($result->Property('headline'))),
465 rank => $result->Property('swishrank')
466 };
467
468 #$r->{html} = back2html($from_utf8->convert($result->Property('html')), cook_url_params($url_params_persist)) if ($q->param('show_full'));
469 $r->{html} = back2html($from_utf8->convert($result->Property('html')), $filter ? 'filter='.$filter : '') if ($q->param('show_full'));
470
471 push @pager_data_list, $r;
472 }
473
474
475
476 # put something in template
477 make_pager($q, $tmpl, $pager);
478 make_pager_vars($q, $tmpl, @persist_vars);
479 $tmpl->param('PAGER_DATA_LIST', \@pager_data_list);
480
481 my $html = $tmpl->output;
482
483 return in_template($q,$html);
484 }
485
486 sub show_index {
487 my $self = shift;
488 my $i = shift; # field number
489
490 my $q = $self->query();
491
492 my $field = $q->param("f$i");
493 my $limit = $q->param("v$i");
494
495 my $filter = $q->param("filter");
496
497 my $html;
498
499 my $index = new index_DBI(
500 $cfg_global->val('global', 'dbi_dbd'),
501 $cfg_global->val('global', 'dbi_dsn'),
502 $cfg_global->val('global', 'dbi_user'),
503 $cfg_global->val('global', 'dbi_passwd') || ''
504 );
505
506 my $total = $index->count($field,$limit,$filter);
507
508 if (! defined($total)) {
509 my $tmpl = $self->load_tmpl(url_ex($q,'no_index.html'));
510 $tmpl->param('field',$field);
511 $html = $tmpl->output;
512 return $html;
513 }
514
515 my $tmpl = $self->load_tmpl(url_ex($q,'index_res.html'), global_vars => 1, die_on_bad_params => 0);
516 $tmpl->param('field',$field);
517 $tmpl->param('limit',$limit);
518 $tmpl->param('total',$total);
519 $tmpl->param('filter',$filter);
520
521 # FIXME I should set offset and leave out limit from fetch!!
522 # if (! $q->param("PAGER_offset") {
523 # $q->param("Pager_offet)
524 # }
525
526
527 #
528 # build pager
529 #
530 my $pager = Data::Pageset->new({
531 'total_entries' => $total,
532 'entries_per_page' => $ON_PAGE,
533 'current_page' => $q->param('PAGER_offset') || 1,
534 'pages_per_set' => $pages_per_set
535 });
536
537 my @persist_vars = qw{rm f$i v$i f$i_index offset};
538
539 make_pager($q, $tmpl, $pager);
540 make_pager_vars($q, $tmpl, @persist_vars);
541
542 my @pager_data_list = $index->fetch($field,$limit, $pager->first - 1, $pager->entries_on_this_page, $filter);
543 $tmpl->param('PAGER_DATA_LIST', \@pager_data_list);
544
545 return in_template($q,$tmpl->output);
546 }
547
548 1;

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