242 lines
6.2 KiB
Perl
Executable file
242 lines
6.2 KiB
Perl
Executable file
#!/usr/bin/perl
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# $Id$
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package C4::Z3950;
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# Routines for handling Z39.50 lookups
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# Koha library project www.koha.org
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# Licensed under the GPL
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# Copyright 2000-2002 Katipo Communications
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
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# Suite 330, Boston, MA 02111-1307 USA
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use strict;
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# standard or CPAN modules used
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use DBI;
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# Koha modules used
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use C4::Database;
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use C4::Input;
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use C4::Biblio;
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#------------------
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require Exporter;
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use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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# set the version for version checking
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$VERSION = 0.01;
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@ISA = qw(Exporter);
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@EXPORT = qw(
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&z3950servername
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&addz3950queue
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);
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%EXPORT_TAGS = ( ); # eg: TAG => [ qw!name1 name2! ],
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# your exported package globals go here,
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# as well as any optionally exported functions
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@EXPORT_OK = qw($Var1 %Hashit);
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# non-exported package globals go here
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use vars qw(@more $stuff);
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# initalize package globals, first exported ones
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my $Var1 = '';
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my %Hashit = ();
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# then the others (which are still accessible as $Some::Module::stuff)
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my $stuff = '';
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my @more = ();
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# all file-scoped lexicals must be created before
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# the functions below that use them.
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# file-private lexicals go here
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my $priv_var = '';
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my %secret_hash = ();
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# here's a file-private function as a closure,
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# callable as &$priv_func; it cannot be prototyped.
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my $priv_func = sub {
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# stuff goes here.
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};
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# make all your functions, whether exported or not;
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#------------------------------------------------
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sub z3950servername {
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# inputs
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my (
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$dbh, # FIXME - Unused argument
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$srvid, # server id number
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$default,
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)=@_;
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# return
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my $longname;
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#----
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$dbh = C4::Context->dbh;
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# FIXME - Fix indentation
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my $sti=$dbh->prepare("select name
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from z3950servers
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where id=?");
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$sti->execute($srvid);
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if ( ! $sti->err ) {
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($longname)=$sti->fetchrow;
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}
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if (! $longname) {
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$longname="$default";
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}
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return $longname;
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} # sub z3950servername
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#---------------------------------------
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sub addz3950queue {
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use strict;
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# input
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my (
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$dbh, # DBI handle
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# FIXME - Unused argument
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$query, # value to look up
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$type, # type of value ("isbn", "lccn", etc).
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$requestid, # Unique value to prevent duplicate searches from multiple HTML form submits
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@z3950list, # list of z3950 servers to query
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)=@_;
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# Returns:
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my $error;
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my (
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$sth,
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@serverlist,
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$server,
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$failed,
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$servername,
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);
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my $pidfile='/var/log/koha/processz3950queue.pid';
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$error="";
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$dbh = C4::Context->dbh;
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# FIXME - Fix indentation
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# list of servers: entry can be a fully qualified URL-type entry
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# or simply just a server ID number.
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foreach $server (@z3950list) {
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if ($server =~ /:/ ) {
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push @serverlist, $server;
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} elsif ($server eq 'DEFAULT' || $server eq 'CHECKED' ) {
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$sth=$dbh->prepare("select host,port,db,userid,password ,name
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from z3950servers
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where checked <> 0 ");
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$sth->execute;
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while ( my ($host, $port, $db, $userid, $password,$servername)
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= $sth->fetchrow ) {
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push @serverlist, "$servername/$host\:$port/$db/$userid/$password";
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} # while
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} else {
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$sth=$dbh->prepare("select host,port,db,userid,password
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from z3950servers
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where id=? ");
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$sth->execute($server);
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my ($host, $port, $db, $userid, $password) = $sth->fetchrow;
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push @serverlist, "$server/$host\:$port/$db/$userid/$password";
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}
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}
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my $serverlist='';
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foreach (@serverlist) {
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$serverlist.="$_ ";
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} # foreach
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chop $serverlist;
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if ( $serverlist !~ /^ +$/ ) {
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# Don't allow reinsertion of the same request identifier.
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$sth=$dbh->prepare("select identifier from z3950queue
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where identifier=?");
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$sth->execute($requestid);
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if ( ! $sth->rows) {
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$sth=$dbh->prepare("insert into z3950queue
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(term,type,servers, identifier)
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values (?, ?, ?, ?)");
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$sth->execute($query, $type, $serverlist, $requestid);
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if ( -r $pidfile ) {
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my $pid=`cat $pidfile`;
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chomp $pid;
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my $processcount=kill 1, $pid;
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if ($processcount==0) {
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$error.="Z39.50 search daemon error: no process signalled. ";
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}
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} else {
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$error.="No Z39.50 search daemon running: no file $pidfile. ";
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} # if $pidfile
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} else {
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$error.="Duplicate request ID $requestid. ";
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} # if rows
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} else {
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# server list is empty
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$error.="No Z39.50 search servers specified. ";
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} # if serverlist empty
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return $error;
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} # sub addz3950queue
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#--------------------------------------
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# $Log$
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# Revision 1.4 2002/10/11 12:35:35 arensb
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# Replaced &requireDBI with C4::Context->dbh
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#
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# Revision 1.3 2002/08/14 18:12:52 tonnesen
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# Added copyright statement to all .pl and .pm files
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#
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# Revision 1.2 2002/07/02 20:31:33 tonnesen
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# module added from rel-1-2 branch
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#
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# Revision 1.1.2.5 2002/06/29 17:33:47 amillar
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# Allow DEFAULT as input to addz3950search.
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# Check for existence of pid file (cat crashed otherwise).
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# Return error messages in addz3950search.
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#
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# Revision 1.1.2.4 2002/06/28 18:07:27 tonnesen
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# marcimport.pl will print an error message if it can not signal the
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# processz3950queue program. The message contains instructions for starting the
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# daemon.
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#
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# Revision 1.1.2.3 2002/06/28 17:45:39 tonnesen
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# z3950queue now listens for a -HUP signal before processing the queue. Z3950.pm
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# sends the -HUP signal when queries are added to the queue.
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#
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# Revision 1.1.2.2 2002/06/26 20:54:31 tonnesen
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# use warnings breaks on perl 5.005...
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#
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# Revision 1.1.2.1 2002/06/26 07:26:41 amillar
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# New module for Z39.50 searching
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#
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