/[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 112 - (show annotations)
Tue Jul 15 15:07:42 2003 UTC (16 years, 2 months ago) by dpavlin
File size: 5996 byte(s)
fix: dynamicly create perasistent variables

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

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