/[webpac]/branches/humanistika/WebPac.pm
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Revision 697 - (hide annotations)
Sun Mar 13 02:03:30 2005 UTC (14 years, 10 months ago) by dpavlin
File size: 13638 byte(s)
updated branches to head

1 dpavlin 7 package WebPac;
2    
3     use base 'CGI::Application';
4     use strict;
5    
6     use HTML::FillInForm;
7 dpavlin 305 use SWISH::API;
8 dpavlin 14 use Text::Iconv;
9 dpavlin 9 use DBI;
10 dpavlin 53 use Config::IniFiles;
11 dpavlin 73 use Text::Unaccent;
12 dpavlin 305 use Data::Pageset;
13 dpavlin 697 use POSIX qw(locale_h);
14 dpavlin 7
15 dpavlin 11 use lib '..';
16 dpavlin 652 use index_DBI_filter;
17 dpavlin 13 use back2html;
18 dpavlin 11
19 dpavlin 7
20 dpavlin 76 # 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 dpavlin 120 my $MIN_WILDCARD =$cfg_global->val('webpac', 'min_wildcard') || 1;
31 dpavlin 147 my $TEMPLATE =$cfg_global->val('webpac', 'template');
32 dpavlin 321 my $UNAC_FILTER =$cfg_global->val('global', 'my_unac_filter');
33 dpavlin 198 my $BASE_PATH =$cfg_global->val('webpac', 'base_path');
34 dpavlin 305 # for pager
35     my $pages_per_set = $cfg_global->val('webpac', 'pages_per_set') || 10;
36 dpavlin 697 my $locale = $cfg_global->val('locale') || 'hr_HR';
37 dpavlin 76
38 dpavlin 321 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
39 dpavlin 305
40 dpavlin 321 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
41    
42 dpavlin 697 setlocale(LC_CTYPE, $locale);
43     setlocale(LC_COLLATE, $locale);
44    
45 dpavlin 164 if ($UNAC_FILTER) {
46     require $UNAC_FILTER;
47 dpavlin 321 } else {
48     sub WebPac::my_unac_string {
49     my ($charset, $string) = (@_);
50     return $string;
51     }
52 dpavlin 164 }
53 dpavlin 76
54 dpavlin 198 # 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 $tpl = shift || die "url_ex needs template name!";
58 dpavlin 303 return suff2file($BASE_PATH, $q->url(-absolute => 1,-path => 1),$TEMPLATE_PATH,$tpl);
59 dpavlin 198 }
60 dpavlin 53
61 dpavlin 198 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 dpavlin 303 if ($base_path eq "/") {
69 dpavlin 198 $p =~ s,/*,,g;
70     my ($name,$ext) = split(/\./,$tpl);
71 dpavlin 303 $p = $name . "-" . $p . "." . $ext;
72     } elsif ($p =~ s,^.*?$base_path,,) {
73     $p =~ s,/*,,g;
74     my ($name,$ext) = split(/\./,$tpl);
75 dpavlin 198 $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 dpavlin 7 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 dpavlin 9 # 'user' => 'show_user_detail',
96     'index' => 'show_index',
97 dpavlin 7 );
98     $self->start_mode('search');
99     $self->mode_param('rm');
100    
101     $self->header_props(-charset=>$CHARSET);
102     }
103    
104 dpavlin 147 sub in_template {
105 dpavlin 198 my $q = shift || die "need CGI object!";
106     my $html = shift || die "This page is left unintentionally blank";
107 dpavlin 147 return $html if (! defined($TEMPLATE));
108 dpavlin 198
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 dpavlin 303 my $master_tpl = suff2file($BASE_PATH, $q->url(-absolute => 1, -path => 1),$dir,$tpl);
117 dpavlin 198 if (open(T, $master_tpl)) {
118 dpavlin 147 my $template_html = join("\n",<T>);
119     close(T);
120     $template_html =~ s/##webpac##/$html/gsi;
121     return $template_html;
122     } else {
123 dpavlin 198 return "Can't read template '$master_tpl'";
124 dpavlin 147 }
125     }
126    
127 dpavlin 305 #--------------------------------------------------------------------------
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 dpavlin 671 next if ($p <= 0);
157 dpavlin 305 if($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 dpavlin 684 my $hidden_search = '';
191 dpavlin 305 foreach my $v (@persist_vars) {
192 dpavlin 458 foreach my $val ($q->param($v)) {
193 dpavlin 637 next if (! $val || $val eq '');
194 dpavlin 689 $val =~ s/"/&quot;/g;
195 dpavlin 458 $hidden_vars .= '<input type="hidden" name="'.$v.'" value="'.$val.'"/>'."\n";
196 dpavlin 684 $hidden_search .= '<input type="hidden" name="'.$v.'" value="'.$val.'"/>'."\n" if ($v ne "rm");
197 dpavlin 458 }
198 dpavlin 305 }
199    
200     $tmpl->param('PAGER_HIDDEN', $hidden_vars);
201 dpavlin 684 $tmpl->param('SEARCH_HIDDEN', $hidden_search);
202 dpavlin 637 $tmpl->param('PAGER_JAVASCRIPT', qq#
203 dpavlin 305 <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 dpavlin 637 #);
212 dpavlin 305 }
213    
214     #--------------------------------------------------------------------------
215    
216 dpavlin 7 sub show_search_form {
217     my $self = shift;
218    
219     # Get the CGI.pm query object
220     my $q = $self->query();
221    
222 dpavlin 198 my $tmpl = $self->load_tmpl(url_ex($q,'search.html'));
223 dpavlin 7 my $html = $tmpl->output;
224    
225     my $fif = new HTML::FillInForm;
226    
227 dpavlin 198 return in_template($q,$fif->fill(scalarref => \$html, fobject => $q,
228 dpavlin 147 target => 'search'));
229 dpavlin 7 }
230    
231     sub show_results_list {
232     my $self = shift;
233    
234     my $q = $self->query();
235    
236 dpavlin 684 # submit was reset?
237     if ($q->param('reset')) {
238     $q->delete_all;
239     return $self->show_search_form();
240     }
241    
242 dpavlin 7 # load template for this page
243    
244     my @s_arr; # all queries are located here
245    
246 dpavlin 47 my @path_arr = $q->param('path');
247     my $full = $q->param('full');
248    
249 dpavlin 637 my @persist_vars = ( 'rm', 'persist_search' );
250 dpavlin 305 my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.($q->param('PAGER_offset') || 0) );
251 dpavlin 112
252 dpavlin 637 my @persist_search_vars;
253     my @url_params_persist;
254     if ($q->param("persist_search")) {
255     @persist_search_vars = split(/\s*,\s*/, $q->param("persist_search"));
256     push @url_params_persist, "persist_search=".$q->url_param("persist_search");
257     push @url_params,"persist_search=".$q->url_param("persist_search");
258     }
259    
260 dpavlin 150 # support parametars "f" and "v" for start
261 dpavlin 637 for(my $i = 0; $i <=30; $i++) {
262 dpavlin 7
263 dpavlin 637 $i = '' if ($i == 0);
264    
265 dpavlin 9 return show_index($self, $i) if ($q->param("f".$i."_index"));
266 dpavlin 112
267 dpavlin 637 next if (! $q->param("v$i") || $q->param("v$i") eq '');
268 dpavlin 9 next if (! $q->param("f$i"));
269 dpavlin 7
270 dpavlin 637 my $persist = grep(/^$i$/,@persist_search_vars);
271    
272 dpavlin 112 push @persist_vars, "f$i";
273     push @persist_vars, "v$i";
274 dpavlin 186 push @persist_vars, "e$i" if ($q->param("e$i"));
275 dpavlin 112
276 dpavlin 637 # create url parametars (and persistent ones)
277    
278 dpavlin 126 push @url_params,"f$i=".$q->url_param("f$i");
279 dpavlin 637 push @url_params_persist,"f$i=".$q->url_param("f$i") if ($persist);
280    
281 dpavlin 158 foreach my $v ($q->url_param("v$i")) {
282 dpavlin 684 # escape quotes so that phrase search work
283     $v =~ s/"/%22/g;
284 dpavlin 158 push @url_params,"v$i=$v";
285 dpavlin 637 push @url_params_persist,"v$i=$v" if ($persist);
286 dpavlin 158 }
287 dpavlin 126
288 dpavlin 637 if ($q->param("e$i")) {
289     push @url_params,"e$i=".$q->url_param("e$i");
290 dpavlin 640 # push @url_params_persist,"e$i=".$q->url_param("e$i");
291 dpavlin 637 }
292    
293 dpavlin 150 my $wc="*"; # swish wildcard
294     $wc="" if ($i eq ""); # don't apply wildcard on field 0
295    
296 dpavlin 7 # re-write query from +/- to and/and not
297 dpavlin 73 my @param_vals = $q->param("v$i");
298     my @swish_q;
299 dpavlin 163 my ($pre,$post,$exact) = ('','','');
300 dpavlin 73 while (my $search = shift @param_vals) {
301     my $s;
302     # remove accents
303 dpavlin 321 $search = my_unac_string($CHARSET,$search);
304 dpavlin 73 while ($search =~ s/\s*("[^"]+")\s*/ /) {
305     $s .= "$1 ";
306     }
307     $search =~ s/^\s+//;
308     $search =~ s/\s+$//;
309 dpavlin 7
310 dpavlin 163 # filed e[nr] is exact match bitmask
311     # 1 = beginning, 2=end, 3=both
312 dpavlin 637 my $exact_flag = $q->param("e$i") || 0;
313     $pre = '"xxbxx ' if ($exact_flag & 1);
314     $post = ' xxexx"' if ($exact_flag & 2);
315 dpavlin 163 # add qotes on other side
316     if ($q->param("e$i")) {
317     $pre = '"' if (! $pre);
318     $post = '"' if (! $post);
319 dpavlin 190 # what about wildcards?
320     $wc = '';
321     $wc = '*' if ($q->param("e$i") & 4);
322 dpavlin 163 $exact = '_exact';
323     }
324    
325 dpavlin 73 foreach (split(/\s+/,$search)) {
326     if (m/^([+-])(\S+)/) {
327     $s.= ($s) ? "and " : "";
328     $s.="not " if ($1 eq "-");
329 dpavlin 163 $s.=$2.$wc." ";
330 dpavlin 122 } elsif (m/^\s*(and|or|not)\s*$/i) {
331 dpavlin 163 $s.=$_." ";
332 dpavlin 120 # don't add * to words with less than x chars
333     } elsif (length($_) <= $MIN_WILDCARD) {
334 dpavlin 163 $s.=$_." ";
335 dpavlin 73 } else {
336 dpavlin 163 $s.=$_.$wc." ";
337 dpavlin 73 }
338 dpavlin 7 }
339 dpavlin 73 $s =~ s/\*+/*/g;
340 dpavlin 163 $s = $pre.$s.$post if ($q->param("e$i"));
341 dpavlin 73 push @swish_q,$s;
342 dpavlin 7 }
343 dpavlin 73 # FIXME default operator for multi-value fields is or. There is
344     # no way to change it, except here for now. Is there need?
345 dpavlin 163 push @s_arr, $q->param("f$i")."_swish".$exact."=(".join(" or ",@swish_q).")";
346 dpavlin 7 }
347    
348 dpavlin 671 my $tmpl = $self->load_tmpl(url_ex($q,'results.html'), global_vars => 1, die_on_bad_params => 0);
349 dpavlin 9
350 dpavlin 305 $tmpl->param('url_params',"?".join("&",@url_params));
351    
352 dpavlin 80 sub esc_html {
353     my $html = shift;
354     $html =~ s/</&lt;/g;
355     $html =~ s/>/&gt;/g;
356     return $html;
357     }
358    
359 dpavlin 202 my $sort = 'swishrank';
360     if ($q->param("sort")) {
361     $sort = 'headline';
362     push @persist_vars, "sort";
363     }
364    
365 dpavlin 669 my $sortby = $q->param("sortby");
366     if ($sortby) {
367     $sort = $sortby;
368     push @persist_vars, "sortby";
369     }
370     $tmpl->param('url_params_paths',"?".join("&",@url_params).'&'.join("&",map { my $t = $_; $t =~ s/\#/%23/g; "path=$t"; } @path_arr));
371    
372 dpavlin 47 # construct swish query
373     my $sw_q = join(" and ",@s_arr);
374 dpavlin 637 if (@path_arr && $q->param('show_full')) {
375 dpavlin 47 $sw_q .= "and (swishdocpath=\"";
376     $sw_q .= join("\" or swishdocpath=\"",@path_arr);
377     $sw_q .= "\")";
378 dpavlin 637 $tmpl->param('full',1); # show full records
379     } elsif ($q->param('show_full')) {
380 dpavlin 149 # just show full path, no path defined
381     $tmpl->param('full',1);
382 dpavlin 121 } else {
383     $tmpl->param('full',0);
384 dpavlin 47 }
385 dpavlin 7
386 dpavlin 669 my $swish_msg = ' ';
387    
388 dpavlin 305 # create new swish instance
389     my $swish = SWISH::API->new($INDEX);
390 dpavlin 669 $swish_msg .= $swish->ErrorString." ".$swish->LastErrorMsg if $swish->Error;
391 dpavlin 47
392 dpavlin 305 # execute query and get number of results from SWISH-E
393     my $search = $swish->New_Search_Object;
394    
395     $search->SetSort($sort);
396    
397     my $results = $search->Execute($sw_q);
398 dpavlin 669 $swish_msg .= $swish->ErrorString." ".$swish->LastErrorMsg if $swish->Error;
399 dpavlin 305
400     my $hits = $results->Hits;
401    
402 dpavlin 7 $tmpl->param('hits',$hits);
403 dpavlin 669 my $search_msg = $sw_q;
404     $search_msg .= '<em>'.$swish_msg.'</em>' if ($swish_msg);
405     $tmpl->param('search', $search_msg);
406 dpavlin 7
407 dpavlin 76 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
408     $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
409 dpavlin 51
410 dpavlin 305 #
411     # build pager
412     #
413 dpavlin 126
414 dpavlin 305 my $current_page = $q->param('PAGER_offset') || 1;
415 dpavlin 7
416 dpavlin 305 my $pager = Data::Pageset->new({
417     'total_entries' => $hits,
418     'entries_per_page' => $ON_PAGE,
419     'current_page' => $current_page,
420     'pages_per_set' => $pages_per_set,
421     });
422 dpavlin 7
423 dpavlin 305 $results->SeekResult( $pager->first - 1 );
424 dpavlin 7
425 dpavlin 305 # get number of entries on this page
426     my $i = $pager->entries_on_this_page;
427    
428     # results from swish for template
429     my @pager_data_list;
430    
431     for(my $i=$pager->first; $i<=$pager->last; $i++) {
432    
433     my $result = $results->NextResult;
434     last if (! $result);
435    
436     my $r = {
437     nr => $i,
438     path => $result->Property('swishdocpath'),
439     headline => esc_html($from_utf8->convert($result->Property('headline'))),
440     rank => $result->Property('swishrank')
441     };
442    
443 dpavlin 637 $r->{html} = back2html($from_utf8->convert($result->Property('html')), join("&",@url_params_persist)) if ($q->param('show_full'));
444 dpavlin 305
445     push @pager_data_list, $r;
446     }
447    
448    
449    
450     # put something in template
451     make_pager($q, $tmpl, $pager);
452     make_pager_vars($q, $tmpl, @persist_vars);
453     $tmpl->param('PAGER_DATA_LIST', \@pager_data_list);
454    
455     my $html = $tmpl->output;
456    
457 dpavlin 198 return in_template($q,$html);
458 dpavlin 7 }
459    
460 dpavlin 9 sub show_index {
461     my $self = shift;
462     my $i = shift; # field number
463    
464     my $q = $self->query();
465    
466 dpavlin 11 my $field = $q->param("f$i");
467     my $limit = $q->param("v$i");
468    
469 dpavlin 652 my $filter = $q->param("filter");
470    
471 dpavlin 9 my $html;
472    
473 dpavlin 53 my $index = new index_DBI(
474     $cfg_global->val('global', 'dbi_dbd'),
475     $cfg_global->val('global', 'dbi_dsn'),
476     $cfg_global->val('global', 'dbi_user'),
477     $cfg_global->val('global', 'dbi_passwd') || ''
478     );
479 dpavlin 9
480 dpavlin 652 my $total = $index->count($field,$limit,$filter);
481 dpavlin 305
482 dpavlin 652 if (! defined($total)) {
483 dpavlin 198 my $tmpl = $self->load_tmpl(url_ex($q,'no_index.html'));
484 dpavlin 11 $tmpl->param('field',$field);
485     $html = $tmpl->output;
486     return $html;
487     }
488 dpavlin 9
489 dpavlin 671 my $tmpl = $self->load_tmpl(url_ex($q,'index_res.html'), global_vars => 1, die_on_bad_params => 0);
490 dpavlin 12 $tmpl->param('field',$field);
491     $tmpl->param('limit',$limit);
492     $tmpl->param('total',$total);
493 dpavlin 687 $tmpl->param('filter',$filter);
494 dpavlin 11
495 dpavlin 51 # FIXME I should set offset and leave out limit from fetch!!
496 dpavlin 16 # if (! $q->param("PAGER_offset") {
497     # $q->param("Pager_offet)
498     # }
499    
500 dpavlin 11
501 dpavlin 305 #
502     # build pager
503     #
504     my $pager = Data::Pageset->new({
505     'total_entries' => $total,
506     'entries_per_page' => $ON_PAGE,
507     'current_page' => $q->param('PAGER_offset') || 1,
508     'pages_per_set' => $pages_per_set
509     });
510 dpavlin 11
511 dpavlin 305 my @persist_vars = qw{rm f$i v$i f$i_index offset};
512    
513     make_pager($q, $tmpl, $pager);
514     make_pager_vars($q, $tmpl, @persist_vars);
515    
516 dpavlin 652 my @pager_data_list = $index->fetch($field,$limit, $pager->first - 1, $pager->entries_on_this_page, $filter);
517 dpavlin 305 $tmpl->param('PAGER_DATA_LIST', \@pager_data_list);
518    
519     return in_template($q,$tmpl->output);
520 dpavlin 9 }
521    
522 dpavlin 7 1;

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