/[webpac]/branches/humanistika/WebPac.pm
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Annotation of /branches/humanistika/WebPac.pm

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Revision 303 - (hide annotations)
Sun Apr 4 22:11:13 2004 UTC (15 years, 9 months ago) by dpavlin
File size: 9368 byte(s)
updated branches to HEAD

1 dpavlin 7 package WebPac;
2    
3     use base 'CGI::Application';
4     use strict;
5    
6     use HTML::Pager;
7     use HTML::FillInForm;
8     use SWISH;
9 dpavlin 14 use Text::Iconv;
10 dpavlin 9 use DBI;
11 dpavlin 53 use Config::IniFiles;
12 dpavlin 73 use Text::Unaccent;
13 dpavlin 7
14 dpavlin 11 use lib '..';
15 dpavlin 128 use index_DBI_cache;
16 dpavlin 13 use back2html;
17 dpavlin 11
18 dpavlin 7
19 dpavlin 76 # 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 dpavlin 120 my $MIN_WILDCARD =$cfg_global->val('webpac', 'min_wildcard') || 1;
30 dpavlin 147 my $TEMPLATE =$cfg_global->val('webpac', 'template');
31 dpavlin 164 my $UNAC_FILTER =$cfg_global->val('global', 'unac_filter');
32 dpavlin 198 my $BASE_PATH =$cfg_global->val('webpac', 'base_path');
33 dpavlin 76
34 dpavlin 164 if ($UNAC_FILTER) {
35     require $UNAC_FILTER;
36     }
37 dpavlin 76
38 dpavlin 30 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
39 dpavlin 7
40 dpavlin 14 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
41    
42 dpavlin 198 # 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 $tpl = shift || die "url_ex needs template name!";
46 dpavlin 303 return suff2file($BASE_PATH, $q->url(-absolute => 1,-path => 1),$TEMPLATE_PATH,$tpl);
47 dpavlin 198 }
48 dpavlin 53
49 dpavlin 198 sub suff2file($$$$) {
50     my ($base_path, $p, $path, $tpl) = @_;
51    
52     return $tpl if (! $base_path);
53    
54     # strip everything to and including base path, leaving only
55     # additional (virtual) path
56 dpavlin 303 if ($base_path eq "/") {
57 dpavlin 198 $p =~ s,/*,,g;
58     my ($name,$ext) = split(/\./,$tpl);
59 dpavlin 303 $p = $name . "-" . $p . "." . $ext;
60     } elsif ($p =~ s,^.*?$base_path,,) {
61     $p =~ s,/*,,g;
62     my ($name,$ext) = split(/\./,$tpl);
63 dpavlin 198 $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 dpavlin 7 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 dpavlin 9 # 'user' => 'show_user_detail',
84     'index' => 'show_index',
85 dpavlin 7 );
86     $self->start_mode('search');
87     $self->mode_param('rm');
88    
89     $self->header_props(-charset=>$CHARSET);
90     }
91    
92 dpavlin 147 sub in_template {
93 dpavlin 198 my $q = shift || die "need CGI object!";
94     my $html = shift || die "This page is left unintentionally blank";
95 dpavlin 147 return $html if (! defined($TEMPLATE));
96 dpavlin 198
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 dpavlin 303 my $master_tpl = suff2file($BASE_PATH, $q->url(-absolute => 1, -path => 1),$dir,$tpl);
105 dpavlin 198 if (open(T, $master_tpl)) {
106 dpavlin 147 my $template_html = join("\n",<T>);
107     close(T);
108     $template_html =~ s/##webpac##/$html/gsi;
109     return $template_html;
110     } else {
111 dpavlin 198 return "Can't read template '$master_tpl'";
112 dpavlin 147 }
113     }
114    
115 dpavlin 7 sub show_search_form {
116     my $self = shift;
117    
118     # Get the CGI.pm query object
119     my $q = $self->query();
120    
121 dpavlin 198 my $tmpl = $self->load_tmpl(url_ex($q,'search.html'));
122 dpavlin 7 my $html = $tmpl->output;
123    
124     my $fif = new HTML::FillInForm;
125    
126 dpavlin 198 return in_template($q,$fif->fill(scalarref => \$html, fobject => $q,
127 dpavlin 147 target => 'search'));
128 dpavlin 7 }
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 dpavlin 47 my @path_arr = $q->param('path');
142     my $full = $q->param('full');
143    
144 dpavlin 112 my @persist_vars = ( 'rm' );
145 dpavlin 126 my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.$q->param('PAGER_offset') || 0 );
146 dpavlin 112
147 dpavlin 150 # support parametars "f" and "v" for start
148     for(my $i = ""; $i <=30; $i++) {
149 dpavlin 7
150 dpavlin 9 return show_index($self, $i) if ($q->param("f".$i."_index"));
151 dpavlin 112
152 dpavlin 71 next if (! $q->param("v$i"));
153 dpavlin 9 next if (! $q->param("f$i"));
154 dpavlin 7
155 dpavlin 112 push @persist_vars, "f$i";
156     push @persist_vars, "v$i";
157 dpavlin 186 push @persist_vars, "e$i" if ($q->param("e$i"));
158 dpavlin 112
159 dpavlin 126 push @url_params,"f$i=".$q->url_param("f$i");
160 dpavlin 158 foreach my $v ($q->url_param("v$i")) {
161     push @url_params,"v$i=$v";
162     }
163 dpavlin 183 push @url_params,"e$i=".$q->url_param("e$i");
164 dpavlin 126
165 dpavlin 150 my $wc="*"; # swish wildcard
166     $wc="" if ($i eq ""); # don't apply wildcard on field 0
167    
168 dpavlin 7 # re-write query from +/- to and/and not
169 dpavlin 73 my @param_vals = $q->param("v$i");
170     my @swish_q;
171 dpavlin 163 my ($pre,$post,$exact) = ('','','');
172 dpavlin 73 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 dpavlin 7
182 dpavlin 163 # 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 dpavlin 190 # what about wildcards?
191     $wc = '';
192     $wc = '*' if ($q->param("e$i") & 4);
193 dpavlin 163 $exact = '_exact';
194     }
195    
196 dpavlin 73 foreach (split(/\s+/,$search)) {
197     if (m/^([+-])(\S+)/) {
198     $s.= ($s) ? "and " : "";
199     $s.="not " if ($1 eq "-");
200 dpavlin 163 $s.=$2.$wc." ";
201 dpavlin 122 } elsif (m/^\s*(and|or|not)\s*$/i) {
202 dpavlin 163 $s.=$_." ";
203 dpavlin 120 # don't add * to words with less than x chars
204     } elsif (length($_) <= $MIN_WILDCARD) {
205 dpavlin 163 $s.=$_." ";
206 dpavlin 73 } else {
207 dpavlin 163 $s.=$_.$wc." ";
208 dpavlin 73 }
209 dpavlin 7 }
210 dpavlin 73 $s =~ s/\*+/*/g;
211 dpavlin 163 $s = $pre.$s.$post if ($q->param("e$i"));
212 dpavlin 73 push @swish_q,$s;
213 dpavlin 7 }
214 dpavlin 73 # 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 dpavlin 163 push @s_arr, $q->param("f$i")."_swish".$exact."=(".join(" or ",@swish_q).")";
217 dpavlin 7 }
218    
219 dpavlin 198 my $tmpl = $self->load_tmpl(url_ex($q,'results.html'), global_vars => 1);
220 dpavlin 9
221 dpavlin 80 sub esc_html {
222     my $html = shift;
223     $html =~ s/</&lt;/g;
224     $html =~ s/>/&gt;/g;
225     return $html;
226     }
227    
228 dpavlin 202 my $sort = 'swishrank';
229     if ($q->param("sort")) {
230     $sort = 'headline';
231     push @persist_vars, "sort";
232     }
233    
234 dpavlin 7 # call swish
235     my $sh = SWISH->connect('Fork',
236     prog => $SWISH,
237     indexes => $INDEX,
238 dpavlin 13 properties => [qw/swishdocpath swishrank swishtitle headline html/],
239 dpavlin 7 results => sub {
240     my ($sh,$hit) = @_;
241    
242     push @swish_results, {
243     nr => ($#swish_results + 2),
244     path => $hit->swishdocpath,
245 dpavlin 80 headline => esc_html($from_utf8->convert($hit->headline)),
246 dpavlin 41 html => back2html($from_utf8->convert($hit->html)),
247 dpavlin 7 rank => $hit->swishrank };
248    
249     },
250     #startnum => 0,
251 dpavlin 202 maxhits => $MAX_HITS,
252     sortorder => $sort,
253 dpavlin 7 );
254    
255     die $SWISH::errstr unless $sh;
256 dpavlin 47 # construct swish query
257     my $sw_q = join(" and ",@s_arr);
258 dpavlin 111 if (@path_arr && $q->param('show_full')) {
259 dpavlin 47 $sw_q .= "and (swishdocpath=\"";
260     $sw_q .= join("\" or swishdocpath=\"",@path_arr);
261     $sw_q .= "\")";
262     $tmpl->param('full',1); # show full records
263 dpavlin 149 } elsif ($q->param('show_full')) {
264     # just show full path, no path defined
265     $tmpl->param('full',1);
266 dpavlin 121 } else {
267     $tmpl->param('full',0);
268 dpavlin 47 }
269 dpavlin 7
270 dpavlin 47 my $hits = $sh->query($sw_q);
271    
272 dpavlin 7 $tmpl->param('hits',$hits);
273 dpavlin 47 $tmpl->param('search',$sw_q);
274 dpavlin 7
275 dpavlin 76 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
276     $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
277 dpavlin 51
278 dpavlin 126 $tmpl->param('url_params',"?".join("&",@url_params));
279    
280 dpavlin 7 # 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 dpavlin 114 my $r = $swish_results[$offset+$i];
290 dpavlin 121 if ($r && $tmpl->param('full')) {
291 dpavlin 114 push @result, $r;
292     } elsif ($r) {
293     # if not full output, skip html
294     delete $r->{html};
295     push @result, $r;
296     }
297 dpavlin 7 }
298     return \@result;
299     },
300     rows => $hits,
301     page_size => $ON_PAGE,
302     # some optional parameters
303 dpavlin 112 persist_vars => [ @persist_vars ],
304 dpavlin 7 #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 = $pager->output;
313    
314 dpavlin 198 return in_template($q,$html);
315 dpavlin 7 }
316    
317 dpavlin 9 sub show_index {
318     my $self = shift;
319     my $i = shift; # field number
320    
321     my $q = $self->query();
322    
323 dpavlin 11 my $field = $q->param("f$i");
324     my $limit = $q->param("v$i");
325    
326 dpavlin 9 my $html;
327    
328 dpavlin 53 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 dpavlin 9
335 dpavlin 140 my $total = $index->count($field,$limit);
336 dpavlin 12 if (! $total) {
337 dpavlin 198 my $tmpl = $self->load_tmpl(url_ex($q,'no_index.html'));
338 dpavlin 11 $tmpl->param('field',$field);
339     $html = $tmpl->output;
340     return $html;
341     }
342 dpavlin 9
343 dpavlin 198 my $tmpl = $self->load_tmpl(url_ex($q,'index_res.html'), global_vars => 1);
344 dpavlin 12 $tmpl->param('field',$field);
345     $tmpl->param('limit',$limit);
346     $tmpl->param('total',$total);
347 dpavlin 11
348 dpavlin 51 # FIXME I should set offset and leave out limit from fetch!!
349 dpavlin 16 # if (! $q->param("PAGER_offset") {
350     # $q->param("Pager_offet)
351     # }
352    
353 dpavlin 12 my $pager = HTML::Pager->new(
354     query => $q,
355     get_data_callback => sub {
356     my ($offset, $rows) = @_;
357 dpavlin 11
358 dpavlin 140 my @result = $index->fetch($field,$limit, $offset, $rows);
359 dpavlin 12 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 => $tmpl,
370     );
371 dpavlin 11
372 dpavlin 198 return in_template($q,$pager->output);
373 dpavlin 9 }
374    
375 dpavlin 7 1;

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