/[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!
ViewVC logotype

Contents of /trunk/WebPac.pm

Parent Directory Parent Directory | Revision Log Revision Log


Revision 150 - (show annotations)
Sun Nov 16 22:39:06 2003 UTC (16 years ago) by dpavlin
File size: 7314 byte(s)
support for "f" and "v" fields without number on which wildcards don't apply

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 # support parametars "f" and "v" for start
99 for(my $i = ""; $i <=30; $i++) {
100
101 return show_index($self, $i) if ($q->param("f".$i."_index"));
102
103 next if (! $q->param("v$i"));
104 next if (! $q->param("f$i"));
105
106 push @persist_vars, "f$i";
107 push @persist_vars, "v$i";
108
109 push @url_params,"f$i=".$q->url_param("f$i");
110 push @url_params,"v$i=".$q->url_param("v$i");
111
112 my $wc="*"; # swish wildcard
113 $wc="" if ($i eq ""); # don't apply wildcard on field 0
114
115 # re-write query from +/- to and/and not
116 my @param_vals = $q->param("v$i");
117 my @swish_q;
118 while (my $search = shift @param_vals) {
119 my $s;
120 # remove accents
121 $search = unac_string($CHARSET,$search);
122 while ($search =~ s/\s*("[^"]+")\s*/ /) {
123 $s .= "$1 ";
124 }
125 $search =~ s/^\s+//;
126 $search =~ s/\s+$//;
127
128 foreach (split(/\s+/,$search)) {
129 if (m/^([+-])(\S+)/) {
130 $s.= ($s) ? "and " : "";
131 $s.="not " if ($1 eq "-");
132 $s.="$2$wc ";
133 } elsif (m/^\s*(and|or|not)\s*$/i) {
134 $s.="$_ ";
135 # don't add * to words with less than x chars
136 } elsif (length($_) <= $MIN_WILDCARD) {
137 $s.="$_ ";
138 } else {
139 $s.="$_$wc ";
140 }
141 }
142 $s =~ s/\*+/*/g;
143 push @swish_q,$s;
144 }
145 # FIXME default operator for multi-value fields is or. There is
146 # no way to change it, except here for now. Is there need?
147 push @s_arr, $q->param("f$i")."_swish=(".join(" or ",@swish_q).")";
148 }
149
150 my $tmpl = $self->load_tmpl('results.html', global_vars => 1);
151
152 sub esc_html {
153 my $html = shift;
154 $html =~ s/</&lt;/g;
155 $html =~ s/>/&gt;/g;
156 return $html;
157 }
158
159 # call swish
160 my $sh = SWISH->connect('Fork',
161 prog => $SWISH,
162 indexes => $INDEX,
163 properties => [qw/swishdocpath swishrank swishtitle headline html/],
164 results => sub {
165 my ($sh,$hit) = @_;
166
167 push @swish_results, {
168 nr => ($#swish_results + 2),
169 path => $hit->swishdocpath,
170 headline => esc_html($from_utf8->convert($hit->headline)),
171 html => back2html($from_utf8->convert($hit->html)),
172 rank => $hit->swishrank };
173
174 },
175 #startnum => 0,
176 maxhits => $MAX_HITS
177 );
178
179 die $SWISH::errstr unless $sh;
180 # construct swish query
181 my $sw_q = join(" and ",@s_arr);
182 if (@path_arr && $q->param('show_full')) {
183 $sw_q .= "and (swishdocpath=\"";
184 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
185 $sw_q .= "\")";
186 $tmpl->param('full',1); # show full records
187 } elsif ($q->param('show_full')) {
188 # just show full path, no path defined
189 $tmpl->param('full',1);
190 } else {
191 $tmpl->param('full',0);
192 }
193
194 my $hits = $sh->query($sw_q);
195
196 $tmpl->param('hits',$hits);
197 $tmpl->param('search',$sw_q);
198
199 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
200 $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
201
202 $tmpl->param('url_params',"?".join("&",@url_params));
203
204 # create a Pager object
205 my $pager = HTML::Pager->new(
206 # required parameters
207 query => $q,
208 get_data_callback => sub {
209 my ($offset, $rows) = @_;
210
211 my @result;
212 for (my $i=0; $i<$rows; $i++) {
213 my $r = $swish_results[$offset+$i];
214 if ($r && $tmpl->param('full')) {
215 push @result, $r;
216 } elsif ($r) {
217 # if not full output, skip html
218 delete $r->{html};
219 push @result, $r;
220 }
221 }
222 return \@result;
223 },
224 rows => $hits,
225 page_size => $ON_PAGE,
226 # some optional parameters
227 persist_vars => [ @persist_vars ],
228 #cell_space_color => '#000000',
229 #cell_background_color => '#ffffff',
230 #nav_background_color => '#dddddd',
231 #javascript_presubmit => 'last_minute_javascript()',
232 debug => 1,
233 template => $tmpl,
234 );
235
236 my $html = $pager->output;
237
238 return in_template($html);
239 }
240
241 sub show_index {
242 my $self = shift;
243 my $i = shift; # field number
244
245 my $q = $self->query();
246
247 my $field = $q->param("f$i");
248 my $limit = $q->param("v$i");
249
250 my $html;
251
252 my $index = new index_DBI(
253 $cfg_global->val('global', 'dbi_dbd'),
254 $cfg_global->val('global', 'dbi_dsn'),
255 $cfg_global->val('global', 'dbi_user'),
256 $cfg_global->val('global', 'dbi_passwd') || ''
257 );
258
259 my $total = $index->count($field,$limit);
260 if (! $total) {
261 my $tmpl = $self->load_tmpl('no_index.html');
262 $tmpl->param('field',$field);
263 $html = $tmpl->output;
264 return $html;
265 }
266
267 my $tmpl = $self->load_tmpl('index_res.html', global_vars => 1);
268 $tmpl->param('field',$field);
269 $tmpl->param('limit',$limit);
270 $tmpl->param('total',$total);
271
272 # FIXME I should set offset and leave out limit from fetch!!
273 # if (! $q->param("PAGER_offset") {
274 # $q->param("Pager_offet)
275 # }
276
277 my $pager = HTML::Pager->new(
278 query => $q,
279 get_data_callback => sub {
280 my ($offset, $rows) = @_;
281
282 my @result = $index->fetch($field,$limit, $offset, $rows);
283 return \@result;
284 },
285 rows => $total,
286 page_size => $ON_PAGE,
287 persist_vars => [
288 'rm',
289 "f$i", "v$i", "f".$i."_index",
290 'offset',
291 ],
292 debug => 1,
293 template => $tmpl,
294 );
295
296 return in_template($pager->output);
297 }
298
299 1;

Properties

Name Value
cvs2svn:cvs-rev 1.32

  ViewVC Help
Powered by ViewVC 1.1.26