/[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 149 - (show annotations)
Sun Nov 16 16:57:11 2003 UTC (15 years, 10 months ago) by dpavlin
File size: 7175 byte(s)
display full record without path specified (used for linking)

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
32
33 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
34
35 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
36
37
38 sub setup {
39 my $self = shift;
40 $self->tmpl_path($TEMPLATE_PATH);
41 $self->run_modes(
42 'search' => 'show_search_form',
43 'results' => 'show_results_list',
44 # 'user' => 'show_user_detail',
45 'index' => 'show_index',
46 );
47 $self->start_mode('search');
48 $self->mode_param('rm');
49
50 $self->header_props(-charset=>$CHARSET);
51 }
52
53 sub in_template {
54 my $html = shift || "This page is left unintentionally blank";
55 return $html if (! defined($TEMPLATE));
56 if (open(T, $TEMPLATE)) {
57 my $template_html = join("\n",<T>);
58 close(T);
59 $template_html =~ s/##webpac##/$html/gsi;
60 return $template_html;
61 } else {
62 return "Can't read template '$TEMPLATE'";
63 }
64 }
65
66 sub show_search_form {
67 my $self = shift;
68
69 # Get the CGI.pm query object
70 my $q = $self->query();
71
72 my $tmpl = $self->load_tmpl('search.html');
73 my $html = $tmpl->output;
74
75 my $fif = new HTML::FillInForm;
76
77 return in_template($fif->fill(scalarref => \$html, fobject => $q,
78 target => 'search'));
79 }
80
81 sub show_results_list {
82 my $self = shift;
83
84 my $q = $self->query();
85
86 my @swish_results; # results from swish
87
88 # load template for this page
89
90 my @s_arr; # all queries are located here
91
92 my @path_arr = $q->param('path');
93 my $full = $q->param('full');
94
95 my @persist_vars = ( 'rm' );
96 my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.$q->param('PAGER_offset') || 0 );
97
98 for(my $i = 1; $i <=30; $i++) {
99
100 return show_index($self, $i) if ($q->param("f".$i."_index"));
101
102 next if (! $q->param("v$i"));
103 next if (! $q->param("f$i"));
104
105 push @persist_vars, "f$i";
106 push @persist_vars, "v$i";
107
108 push @url_params,"f$i=".$q->url_param("f$i");
109 push @url_params,"v$i=".$q->url_param("v$i");
110
111 # re-write query from +/- to and/and not
112 my @param_vals = $q->param("v$i");
113 my @swish_q;
114 while (my $search = shift @param_vals) {
115 my $s;
116 # remove accents
117 $search = unac_string($CHARSET,$search);
118 while ($search =~ s/\s*("[^"]+")\s*/ /) {
119 $s .= "$1 ";
120 }
121 $search =~ s/^\s+//;
122 $search =~ s/\s+$//;
123
124 foreach (split(/\s+/,$search)) {
125 if (m/^([+-])(\S+)/) {
126 $s.= ($s) ? "and " : "";
127 $s.="not " if ($1 eq "-");
128 $s.="$2* ";
129 } elsif (m/^\s*(and|or|not)\s*$/i) {
130 $s.="$_ ";
131 # don't add * to words with less than x chars
132 } elsif (length($_) <= $MIN_WILDCARD) {
133 $s.="$_ ";
134 } else {
135 $s.="$_* ";
136 }
137 }
138 $s =~ s/\*+/*/g;
139 push @swish_q,$s;
140 }
141 # FIXME default operator for multi-value fields is or. There is
142 # no way to change it, except here for now. Is there need?
143 push @s_arr, $q->param("f$i")."_swish=(".join(" or ",@swish_q).")";
144 }
145
146 my $tmpl = $self->load_tmpl('results.html', global_vars => 1);
147
148 sub esc_html {
149 my $html = shift;
150 $html =~ s/</&lt;/g;
151 $html =~ s/>/&gt;/g;
152 return $html;
153 }
154
155 # call swish
156 my $sh = SWISH->connect('Fork',
157 prog => $SWISH,
158 indexes => $INDEX,
159 properties => [qw/swishdocpath swishrank swishtitle headline html/],
160 results => sub {
161 my ($sh,$hit) = @_;
162
163 push @swish_results, {
164 nr => ($#swish_results + 2),
165 path => $hit->swishdocpath,
166 headline => esc_html($from_utf8->convert($hit->headline)),
167 html => back2html($from_utf8->convert($hit->html)),
168 rank => $hit->swishrank };
169
170 },
171 #startnum => 0,
172 maxhits => $MAX_HITS
173 );
174
175 die $SWISH::errstr unless $sh;
176 # construct swish query
177 my $sw_q = join(" and ",@s_arr);
178 if (@path_arr && $q->param('show_full')) {
179 $sw_q .= "and (swishdocpath=\"";
180 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
181 $sw_q .= "\")";
182 $tmpl->param('full',1); # show full records
183 } elsif ($q->param('show_full')) {
184 # just show full path, no path defined
185 $tmpl->param('full',1);
186 } else {
187 $tmpl->param('full',0);
188 }
189
190 my $hits = $sh->query($sw_q);
191
192 $tmpl->param('hits',$hits);
193 $tmpl->param('search',$sw_q);
194
195 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
196 $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
197
198 $tmpl->param('url_params',"?".join("&",@url_params));
199
200 # create a Pager object
201 my $pager = HTML::Pager->new(
202 # required parameters
203 query => $q,
204 get_data_callback => sub {
205 my ($offset, $rows) = @_;
206
207 my @result;
208 for (my $i=0; $i<$rows; $i++) {
209 my $r = $swish_results[$offset+$i];
210 if ($r && $tmpl->param('full')) {
211 push @result, $r;
212 } elsif ($r) {
213 # if not full output, skip html
214 delete $r->{html};
215 push @result, $r;
216 }
217 }
218 return \@result;
219 },
220 rows => $hits,
221 page_size => $ON_PAGE,
222 # some optional parameters
223 persist_vars => [ @persist_vars ],
224 #cell_space_color => '#000000',
225 #cell_background_color => '#ffffff',
226 #nav_background_color => '#dddddd',
227 #javascript_presubmit => 'last_minute_javascript()',
228 debug => 1,
229 template => $tmpl,
230 );
231
232 my $html = $pager->output;
233
234 return in_template($html);
235 }
236
237 sub show_index {
238 my $self = shift;
239 my $i = shift; # field number
240
241 my $q = $self->query();
242
243 my $field = $q->param("f$i");
244 my $limit = $q->param("v$i");
245
246 my $html;
247
248 my $index = new index_DBI(
249 $cfg_global->val('global', 'dbi_dbd'),
250 $cfg_global->val('global', 'dbi_dsn'),
251 $cfg_global->val('global', 'dbi_user'),
252 $cfg_global->val('global', 'dbi_passwd') || ''
253 );
254
255 my $total = $index->count($field,$limit);
256 if (! $total) {
257 my $tmpl = $self->load_tmpl('no_index.html');
258 $tmpl->param('field',$field);
259 $html = $tmpl->output;
260 return $html;
261 }
262
263 my $tmpl = $self->load_tmpl('index_res.html', global_vars => 1);
264 $tmpl->param('field',$field);
265 $tmpl->param('limit',$limit);
266 $tmpl->param('total',$total);
267
268 # FIXME I should set offset and leave out limit from fetch!!
269 # if (! $q->param("PAGER_offset") {
270 # $q->param("Pager_offet)
271 # }
272
273 my $pager = HTML::Pager->new(
274 query => $q,
275 get_data_callback => sub {
276 my ($offset, $rows) = @_;
277
278 my @result = $index->fetch($field,$limit, $offset, $rows);
279 return \@result;
280 },
281 rows => $total,
282 page_size => $ON_PAGE,
283 persist_vars => [
284 'rm',
285 "f$i", "v$i", "f".$i."_index",
286 'offset',
287 ],
288 debug => 1,
289 template => $tmpl,
290 );
291
292 return in_template($pager->output);
293 }
294
295 1;

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