/[webpac]/trunk/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 /trunk/WebPac.pm

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Revision 140 - (show annotations)
Thu Oct 30 00:10:09 2003 UTC (15 years, 9 months ago) by dpavlin
File size: 6650 byte(s)
fix for total number of entries from index if using filter, renamed
check function to count and added limit

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
31
32 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
33
34 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
35
36
37 sub setup {
38 my $self = shift;
39 $self->tmpl_path($TEMPLATE_PATH);
40 $self->run_modes(
41 'search' => 'show_search_form',
42 'results' => 'show_results_list',
43 # 'user' => 'show_user_detail',
44 'index' => 'show_index',
45 );
46 $self->start_mode('search');
47 $self->mode_param('rm');
48
49 $self->header_props(-charset=>$CHARSET);
50 }
51
52 sub show_search_form {
53 my $self = shift;
54
55 # Get the CGI.pm query object
56 my $q = $self->query();
57
58 my $tmpl = $self->load_tmpl('search.html');
59 my $html = $tmpl->output;
60
61 my $fif = new HTML::FillInForm;
62
63 return $fif->fill(scalarref => \$html, fobject => $q,
64 target => 'search');
65 }
66
67 sub show_results_list {
68 my $self = shift;
69
70 my $q = $self->query();
71
72 my @swish_results; # results from swish
73
74 # load template for this page
75
76 my @s_arr; # all queries are located here
77
78 my @path_arr = $q->param('path');
79 my $full = $q->param('full');
80
81 my @persist_vars = ( 'rm' );
82 my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.$q->param('PAGER_offset') || 0 );
83
84 for(my $i = 1; $i <=30; $i++) {
85
86 return show_index($self, $i) if ($q->param("f".$i."_index"));
87
88 next if (! $q->param("v$i"));
89 next if (! $q->param("f$i"));
90
91 push @persist_vars, "f$i";
92 push @persist_vars, "v$i";
93
94 push @url_params,"f$i=".$q->url_param("f$i");
95 push @url_params,"v$i=".$q->url_param("v$i");
96
97 # re-write query from +/- to and/and not
98 my @param_vals = $q->param("v$i");
99 my @swish_q;
100 while (my $search = shift @param_vals) {
101 my $s;
102 # remove accents
103 $search = unac_string($CHARSET,$search);
104 while ($search =~ s/\s*("[^"]+")\s*/ /) {
105 $s .= "$1 ";
106 }
107 $search =~ s/^\s+//;
108 $search =~ s/\s+$//;
109
110 foreach (split(/\s+/,$search)) {
111 if (m/^([+-])(\S+)/) {
112 $s.= ($s) ? "and " : "";
113 $s.="not " if ($1 eq "-");
114 $s.="$2* ";
115 } elsif (m/^\s*(and|or|not)\s*$/i) {
116 $s.="$_ ";
117 # don't add * to words with less than x chars
118 } elsif (length($_) <= $MIN_WILDCARD) {
119 $s.="$_ ";
120 } else {
121 $s.="$_* ";
122 }
123 }
124 $s =~ s/\*+/*/g;
125 push @swish_q,$s;
126 }
127 # FIXME default operator for multi-value fields is or. There is
128 # no way to change it, except here for now. Is there need?
129 push @s_arr, $q->param("f$i")."_swish=(".join(" or ",@swish_q).")";
130 }
131
132 my $tmpl = $self->load_tmpl('results.html', global_vars => 1);
133
134 sub esc_html {
135 my $html = shift;
136 $html =~ s/</&lt;/g;
137 $html =~ s/>/&gt;/g;
138 return $html;
139 }
140
141 # call swish
142 my $sh = SWISH->connect('Fork',
143 prog => $SWISH,
144 indexes => $INDEX,
145 properties => [qw/swishdocpath swishrank swishtitle headline html/],
146 results => sub {
147 my ($sh,$hit) = @_;
148
149 push @swish_results, {
150 nr => ($#swish_results + 2),
151 path => $hit->swishdocpath,
152 headline => esc_html($from_utf8->convert($hit->headline)),
153 html => back2html($from_utf8->convert($hit->html)),
154 rank => $hit->swishrank };
155
156 },
157 #startnum => 0,
158 maxhits => $MAX_HITS
159 );
160
161 die $SWISH::errstr unless $sh;
162 # construct swish query
163 my $sw_q = join(" and ",@s_arr);
164 if (@path_arr && $q->param('show_full')) {
165 $sw_q .= "and (swishdocpath=\"";
166 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
167 $sw_q .= "\")";
168 $tmpl->param('full',1); # show full records
169 } else {
170 $tmpl->param('full',0);
171 }
172
173 my $hits = $sh->query($sw_q);
174
175 $tmpl->param('hits',$hits);
176 $tmpl->param('search',$sw_q);
177
178 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
179 $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
180
181 $tmpl->param('url_params',"?".join("&",@url_params));
182
183 # create a Pager object
184 my $pager = HTML::Pager->new(
185 # required parameters
186 query => $q,
187 get_data_callback => sub {
188 my ($offset, $rows) = @_;
189
190 my @result;
191 for (my $i=0; $i<$rows; $i++) {
192 my $r = $swish_results[$offset+$i];
193 if ($r && $tmpl->param('full')) {
194 push @result, $r;
195 } elsif ($r) {
196 # if not full output, skip html
197 delete $r->{html};
198 push @result, $r;
199 }
200 }
201 return \@result;
202 },
203 rows => $hits,
204 page_size => $ON_PAGE,
205 # some optional parameters
206 persist_vars => [ @persist_vars ],
207 #cell_space_color => '#000000',
208 #cell_background_color => '#ffffff',
209 #nav_background_color => '#dddddd',
210 #javascript_presubmit => 'last_minute_javascript()',
211 debug => 1,
212 template => $tmpl,
213 );
214
215 my $html = $pager->output;
216
217 return $html;
218 }
219
220 sub show_index {
221 my $self = shift;
222 my $i = shift; # field number
223
224 my $q = $self->query();
225
226 my $field = $q->param("f$i");
227 my $limit = $q->param("v$i");
228
229 my $html;
230
231 my $index = new index_DBI(
232 $cfg_global->val('global', 'dbi_dbd'),
233 $cfg_global->val('global', 'dbi_dsn'),
234 $cfg_global->val('global', 'dbi_user'),
235 $cfg_global->val('global', 'dbi_passwd') || ''
236 );
237
238 my $total = $index->count($field,$limit);
239 if (! $total) {
240 my $tmpl = $self->load_tmpl('no_index.html');
241 $tmpl->param('field',$field);
242 $html = $tmpl->output;
243 return $html;
244 }
245
246 my $tmpl = $self->load_tmpl('index_res.html', global_vars => 1);
247 $tmpl->param('field',$field);
248 $tmpl->param('limit',$limit);
249 $tmpl->param('total',$total);
250
251 # FIXME I should set offset and leave out limit from fetch!!
252 # if (! $q->param("PAGER_offset") {
253 # $q->param("Pager_offet)
254 # }
255
256 my $pager = HTML::Pager->new(
257 query => $q,
258 get_data_callback => sub {
259 my ($offset, $rows) = @_;
260
261 my @result = $index->fetch($field,$limit, $offset, $rows);
262 return \@result;
263 },
264 rows => $total,
265 page_size => $ON_PAGE,
266 persist_vars => [
267 'rm',
268 "f$i", "v$i", "f".$i."_index",
269 'offset',
270 ],
271 debug => 1,
272 template => $tmpl,
273 );
274
275 return $pager->output;
276 }
277
278 1;

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