| 1 |
dpavlin |
6 |
#!/usr/bin/perl -w |
| 2 |
|
|
|
| 3 |
|
|
use Net::Z3950::SimpleServer; |
| 4 |
|
|
use Net::Z3950::OID; |
| 5 |
|
|
use COBISS; |
| 6 |
|
|
use strict; |
| 7 |
|
|
|
| 8 |
|
|
my $max_records = 3; # XXX configure this |
| 9 |
|
|
my $max_result_sets = 10; |
| 10 |
|
|
|
| 11 |
|
|
sub diag { |
| 12 |
|
|
print "# ", @_, $/; |
| 13 |
|
|
} |
| 14 |
|
|
|
| 15 |
|
|
sub InitHandle { |
| 16 |
|
|
my $this = shift; |
| 17 |
|
|
my $session = {}; |
| 18 |
|
|
|
| 19 |
|
|
$this->{HANDLE} = $session; |
| 20 |
|
|
$this->{IMP_NAME} = "Z39.50 HTML scraping bot"; |
| 21 |
|
|
$this->{IMP_VER} = "0.1"; |
| 22 |
|
|
$session->{SETS} = {}; |
| 23 |
|
|
} |
| 24 |
|
|
|
| 25 |
|
|
use Data::Dumper; |
| 26 |
|
|
|
| 27 |
|
|
sub SearchHandle { |
| 28 |
|
|
my $this = shift; |
| 29 |
|
|
|
| 30 |
|
|
diag "SearchHandle ",Dumper($this); |
| 31 |
|
|
|
| 32 |
|
|
my $session = $this->{HANDLE}; |
| 33 |
|
|
my $rpn = $this->{RPN}; |
| 34 |
|
|
my $query; |
| 35 |
|
|
|
| 36 |
|
|
eval { $query = $rpn->{query}->render(); }; |
| 37 |
|
|
if ( $@ && ref($@) ) { ## Did someone/something report any errors? |
| 38 |
|
|
$this->{ERR_CODE} = $@->{errcode}; |
| 39 |
|
|
$this->{ERR_STR} = $@->{errstr}; |
| 40 |
|
|
return; |
| 41 |
|
|
} |
| 42 |
|
|
|
| 43 |
|
|
diag "search for $query"; |
| 44 |
|
|
|
| 45 |
|
|
my $setname = $this->{SETNAME}; |
| 46 |
|
|
my $repl_set = $this->{REPL_SET}; |
| 47 |
|
|
my $result; |
| 48 |
|
|
unless ( $result = COBISS->search( $query ) ) { |
| 49 |
|
|
$this->{ERR_CODE} = 108; |
| 50 |
|
|
return; |
| 51 |
|
|
} |
| 52 |
dpavlin |
8 |
my $hits = $COBISS::hits || diag "no results for $query"; |
| 53 |
|
|
diag "got $hits hits"; |
| 54 |
dpavlin |
6 |
my $rs = { |
| 55 |
|
|
lower => 1, |
| 56 |
|
|
upper => $hits < $max_records ? $max_records : $hits, |
| 57 |
|
|
data => $result->{'resultElements'}, # FIXME |
| 58 |
|
|
}; |
| 59 |
|
|
my $sets = $session->{SETS}; |
| 60 |
|
|
|
| 61 |
|
|
if ( defined( $sets->{$setname} ) && !$repl_set ) { |
| 62 |
|
|
$this->{ERR_CODE} = 21; |
| 63 |
|
|
return; |
| 64 |
|
|
} |
| 65 |
|
|
if ( scalar keys %$sets >= $max_result_sets ) { |
| 66 |
|
|
$this->{ERR_CODE} = 112; |
| 67 |
|
|
$this->{ERR_STR} = "Max number is $max_result_sets"; |
| 68 |
|
|
return; |
| 69 |
|
|
} |
| 70 |
|
|
$sets->{$setname} = $rs; |
| 71 |
|
|
$this->{HITS} = $session->{HITS} = $hits; |
| 72 |
|
|
$session->{QUERY} = $query; |
| 73 |
|
|
} |
| 74 |
|
|
|
| 75 |
|
|
sub FetchHandle { |
| 76 |
|
|
my $this = shift; |
| 77 |
|
|
my $session = $this->{HANDLE}; |
| 78 |
|
|
my $setname = $this->{SETNAME}; |
| 79 |
|
|
my $req_form = $this->{REQ_FORM}; |
| 80 |
|
|
my $offset = $this->{OFFSET}; |
| 81 |
|
|
my $sets = $session->{SETS}; |
| 82 |
|
|
my $hits = $session->{HITS}; |
| 83 |
|
|
my $rs; |
| 84 |
|
|
my $record; |
| 85 |
|
|
|
| 86 |
|
|
diag Dumper( $this ); |
| 87 |
|
|
|
| 88 |
|
|
if ( !defined( $rs = $sets->{$setname} ) ) { |
| 89 |
|
|
$this->{ERR_CODE} = 30; |
| 90 |
|
|
return; |
| 91 |
|
|
} |
| 92 |
|
|
if ( $offset > $hits ) { |
| 93 |
|
|
$this->{ERR_CODE} = 13; |
| 94 |
|
|
return; |
| 95 |
|
|
} |
| 96 |
|
|
$this->{BASENAME} = "HtmlZ3950"; |
| 97 |
|
|
|
| 98 |
|
|
# if ( !defined($req_form) || ( $req_form eq &Net::Z3950::OID::xml ) ) |
| 99 |
|
|
if (0) |
| 100 |
|
|
{ ## XML records |
| 101 |
|
|
$this->{REP_FORM} = &Net::Z3950::OID::xml; |
| 102 |
|
|
$this->{RECORD} = '<xml>FIXME: not implementd</xml>'; |
| 103 |
|
|
} |
| 104 |
|
|
elsif ( $req_form eq &Net::Z3950::OID::unimarc ) { # FIXME convert to usmarc |
| 105 |
|
|
$this->{REP_FORM} = &Net::Z3950::OID::unimarc; |
| 106 |
|
|
$this->{RECORD} = COBISS->fetch_marc; |
| 107 |
|
|
} |
| 108 |
|
|
else { ## Unsupported record format |
| 109 |
|
|
$this->{ERR_CODE} = 239; |
| 110 |
|
|
$this->{ERR_STR} = $req_form; |
| 111 |
|
|
return; |
| 112 |
|
|
} |
| 113 |
|
|
if ( $offset == $hits ) { |
| 114 |
|
|
$this->{LAST} = 1; |
| 115 |
|
|
} |
| 116 |
|
|
else { |
| 117 |
|
|
$this->{LAST} = 0; |
| 118 |
|
|
} |
| 119 |
|
|
} |
| 120 |
|
|
|
| 121 |
|
|
sub CloseHandle { |
| 122 |
|
|
my $this = shift; |
| 123 |
|
|
} |
| 124 |
|
|
|
| 125 |
|
|
my $z = new Net::Z3950::SimpleServer( |
| 126 |
|
|
INIT => \&InitHandle, |
| 127 |
|
|
SEARCH => \&SearchHandle, |
| 128 |
|
|
FETCH => \&FetchHandle, |
| 129 |
|
|
CLOSE => \&CloseHandle |
| 130 |
|
|
); |
| 131 |
|
|
$z->launch_server( $0, @ARGV ); |
| 132 |
|
|
|
| 133 |
|
|
package Net::Z3950::RPN::And; |
| 134 |
|
|
|
| 135 |
|
|
sub render { |
| 136 |
|
|
my $this = shift; |
| 137 |
|
|
return $this->[0]->render() . ' AND ' . $this->[1]->render(); |
| 138 |
|
|
} |
| 139 |
|
|
|
| 140 |
|
|
package Net::Z3950::RPN::Or; |
| 141 |
|
|
|
| 142 |
|
|
sub render { |
| 143 |
|
|
my $this = shift; |
| 144 |
|
|
return $this->[0]->render() . ' OR ' . $this->[1]->render(); |
| 145 |
|
|
} |
| 146 |
|
|
|
| 147 |
|
|
package Net::Z3950::RPN::AndNot; |
| 148 |
|
|
|
| 149 |
|
|
sub render { |
| 150 |
|
|
my $this = shift; |
| 151 |
|
|
return $this->[0]->render() . ' AND NOT ' . $this->[1]->render(); |
| 152 |
|
|
} |
| 153 |
|
|
|
| 154 |
|
|
package Net::Z3950::RPN::Term; |
| 155 |
|
|
|
| 156 |
|
|
use COBISS; |
| 157 |
|
|
|
| 158 |
|
|
sub render { |
| 159 |
|
|
my $this = shift; |
| 160 |
|
|
|
| 161 |
|
|
print "render ", $this; |
| 162 |
|
|
|
| 163 |
|
|
my $attributes = {}; |
| 164 |
|
|
my $prefix = ""; |
| 165 |
|
|
foreach my $attr ( @{ $this->{attributes} } ) { |
| 166 |
|
|
my $type = $attr->{attributeType}; |
| 167 |
|
|
my $value = $attr->{attributeValue}; |
| 168 |
|
|
$attributes->{$type} = $value; |
| 169 |
|
|
} |
| 170 |
|
|
if ( defined( my $use = $attributes->{1} ) ) { |
| 171 |
|
|
if ( defined( my $field = COBISS::usemap($use) ) ) { |
| 172 |
|
|
$prefix = $field; |
| 173 |
|
|
} |
| 174 |
|
|
else { |
| 175 |
|
|
die { errcode => 114, errstr => $use }; ## Unsupported use attribute |
| 176 |
|
|
} |
| 177 |
|
|
} |
| 178 |
|
|
if ( defined( my $rel = $attributes->{2} ) ) |
| 179 |
|
|
{ ## No relation attributes supported |
| 180 |
|
|
if ( $rel != 3 ) { |
| 181 |
|
|
die { errcode => 117, errstr => $rel }; |
| 182 |
|
|
} |
| 183 |
|
|
} |
| 184 |
|
|
if ( defined( my $pos = $attributes->{3} ) ) |
| 185 |
|
|
{ ## No position attributes either |
| 186 |
|
|
if ( $pos != 3 ) { |
| 187 |
|
|
die { errcode => 119, errstr => $pos }; |
| 188 |
|
|
} |
| 189 |
|
|
} |
| 190 |
|
|
if ( defined( my $struc = $attributes->{4} ) ) { ## No structure |
| 191 |
|
|
if ( ( $struc != 1 ) && ( $struc != 2 ) ) { |
| 192 |
|
|
die { errcode => 118, errstr => $struc }; |
| 193 |
|
|
} |
| 194 |
|
|
} |
| 195 |
|
|
if ( defined( $attributes->{5} ) ) { ## No truncation |
| 196 |
|
|
die { errcode => 113, errstr => 5 }; |
| 197 |
|
|
} |
| 198 |
|
|
my $comp = $attributes->{6}; |
| 199 |
|
|
if ($prefix) { |
| 200 |
|
|
if ( defined($comp) && ( $comp >= 2 ) ) { |
| 201 |
|
|
$prefix = "all$prefix= "; |
| 202 |
|
|
} |
| 203 |
|
|
else { |
| 204 |
|
|
$prefix = "$prefix="; |
| 205 |
|
|
} |
| 206 |
|
|
} |
| 207 |
|
|
|
| 208 |
|
|
my $q = $prefix . $this->{term}; |
| 209 |
|
|
print "# q: $q\n"; |
| 210 |
|
|
return $q; |
| 211 |
|
|
} |
| 212 |
|
|
|
Parent Directory
| 
Revision Log