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Koha/z3950/processz3950queue

293 lines
9.2 KiB
Perl
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#!/usr/bin/perl
# $Id$
use C4::Context;
use DBI;
use strict;
use C4::Biblio;
use C4::Output;
use C4::Breeding;
use Net::Z3950;
if ($< == 0) {
# Running as root, switch privs
if (-d "/var/run") {
open PID, ">/var/run/processz3950queue.pid";
print PID $$."\n";
close PID;
}
# Get real apacheuser from koha.conf or reparsing httpd.conf
my $apacheuser='paul';
my $uid=0;
unless ($uid = (getpwnam($apacheuser))[2]) {
die "Attempt to run daemon as non-existent or superuser\n";
}
$>=$uid;
$<=$uid;
}
my $dbh = C4::Context->dbh;
my $sth=$dbh->prepare("update z3950results set active=0");
$sth->execute;
$sth->finish;
$SIG{CHLD}='reap';
$SIG{HUP}='checkqueue';
my $logdir=$ARGV[0];
open PID, ">$logdir/processz3950queue.pid";
print PID $$."\n";
close PID;
my $reapcounter=0;
my $forkcounter=0;
my $checkqueue=1;
my $pid=$$;
my $lastrun=0;
while (1) {
if ((time-$lastrun)>5) {
print "starting loop\n";
$checkqueue = 1; # FIXME during testing, this line forces the loop. REMOVE it to use SIG{HUP} when "daemonized" !
if ($checkqueue) { # everytime a SIG{HUP} is recieved
$checkqueue=0;
my $sth=$dbh->prepare("select id,term,type,servers,identifier from z3950queue order by id");
$sth->execute;
while (my ($id, $term, $type, $servers,$random) = $sth->fetchrow) {
if ($forkcounter<12) {
my $now=time();
my $stk=$dbh->prepare("select id,server,startdate,enddate,numrecords,active from z3950results where queryid=$id");
($stk->execute) || (next);
my %serverdone;
unless ($stk->rows) {
my $sti=$dbh->prepare("update z3950queue set done=-1,startdate=$now where id=$id");
$sti->execute;
}
while (my ($r_id, $r_server,$r_startdate,$r_enddate,$r_numrecords,$active) = $stk->fetchrow) {
if ($r_enddate >0) {
$serverdone{$r_server}=1;
} elsif ($active) {
$serverdone{$r_server}=1;
} else {
$serverdone{$r_server}=-1;
}
}
$stk->finish;
my $attr='';
if ($type eq 'isbn') {
$attr='1=7';
} elsif ($type eq 'title') {
$attr='1=4';
} elsif ($type eq 'author') {
$attr='1=1003';
} elsif ($type eq 'lccn') {
$attr='1=9';
} elsif ($type eq 'keyword') {
$attr='1=1016';
}
$term='"'.$term.'"';
my $query="\@attr $attr $term";
my $totalrecords=0;
my $serverinfo;
my $stillprocessing=0;
my $globalname;
my $globalsyntax;
my $globalencoding;
foreach $serverinfo (split(/\s+/, $servers)) {
(next) if ($serverdone{$serverinfo} == 1);
my $stillprocessing=1;
if (my $pid=fork()) {
$forkcounter++;
} else {
my $dbi = C4::Context->dbh;
my ($name, $server, $database, $user, $password,$syntax) = split(/\//, $serverinfo, 6);
$globalname=$name;
$globalsyntax = $syntax;
$server=~/(.*)\:(\d+)/;
my $servername=$1;
my $port=$2;
print "Processing $type=$term at $name $server $database $syntax (".($forkcounter+1)." forks)\n";
$now=time();
my $q_serverinfo=$dbi->quote($serverinfo);
my $resultsid;
if ($serverdone{$serverinfo}==-1) {
my $stj=$dbi->prepare("select id from z3950results where server=$q_serverinfo and queryid=$id");
$stj->execute;
($resultsid) = $stj->fetchrow;
$stj->finish;
} else {
my $stj=$dbi->prepare("select id from z3950results where server=$q_serverinfo and queryid=$id");
$stj->execute;
($resultsid) = $stj->fetchrow;
$stj->finish;
unless ($resultsid) {
$stj=$dbi->prepare("insert into z3950results (server, queryid, startdate) values ($q_serverinfo, $id, $now)");
$stj->execute;
$resultsid=$dbi->{'mysql_insertid'};
$stj->finish;
}
}
my $stj=$dbh->prepare("update z3950results set active=1 where id=$resultsid");
$stj->execute;
my $conn;
my $noconnection=0;
my $error=0;
if ($user) {
eval { $conn= new Net::Z3950::Connection($servername, $port, databaseName => $database, user => $user, password => $password); };
if ($@) {
$noconnection=1;
} else {
$error=pe();
}
} else {
eval { $conn= new Net::Z3950::Connection($servername, $port, databaseName => $database); };
if ($@) {
$noconnection=1;
} else {
$error=pe();
}
}
if ($noconnection || $error) {
warn "no connection at $globalname ";
} else {
warn "$globalname ==> $globalsyntax";
eval {$conn->option(elementSetName => 'F')};
eval { $conn->option(preferredRecordSyntax => Net::Z3950::RecordSyntax::USMARC);} if ($globalsyntax eq "USMARC");
eval { $conn->option(preferredRecordSyntax => Net::Z3950::RecordSyntax::UNIMARC);} if ($globalsyntax eq "UNIMARC");
if ($@) {
print "$globalname ERROR: $@\n";
} else {
# print "Q: $query\n";
my $rs=$conn->search($query);
pe();
my $numresults=$rs->size();
if ($numresults eq 0) {
warn "$globalname ==> answered : no records found";
} else {
warn "$globalname ==> answered : $numresults found";
}
pe();
my $i;
my $result='';
my $scantimerstart=time();
for ($i=1; $i<=(($numresults<80) ? ($numresults) : (80)); $i++) {
my $rec=$rs->record($i);
my $marcdata;
# use render() or rawdata() depending on the type of the returned record
my $marcrecord;
if (ref($rec) eq "Net::Z3950::Record::USMARC") {
$marcdata = $rec->rawdata();
$marcrecord = MARC::File::USMARC::decode($rec->rawdata())
}
if (ref($rec) eq "Net::Z3950::Record::UNIMARC") {
$marcdata = $rec->render();
$marcrecord = MARC::File::USMARC::decode($rec->render())
}
$globalencoding = ref($rec);
$result.=$marcdata;
}
my @x=split /::/,$globalencoding;
my ($notmarcrecord,$alreadyindb,$alreadyinfarm,$imported) = ImportBreeding($result,-1,"Z3950-$globalname",$x[3],$random);
my $scantimerend=time();
my $numrecords;
($numresults<80) ? ($numrecords=$numresults) : ($numrecords=80);
my $elapsed=$scantimerend-$scantimerstart;
if ($elapsed) {
my $speed=int($numresults/$elapsed*100)/100;
print "$globalname SPEED: $speed $server done $numrecords\n";
}
my $q_result=$dbi->quote($result);
($q_result) || ($q_result='""');
$now=time();
if ($numresults >0) {
my $task="update z3950results set numrecords=$numresults,numdownloaded=$numrecords,highestseen=0,results=$q_result,enddate=$now where id=$resultsid";
my $stj=$dbi->prepare($task);
$stj->execute;
} else { # no results...
my $task="update z3950results set numrecords=$numresults,numdownloaded=$numrecords,highestseen=0,results='',enddate=$now where id=$resultsid";
my $stj=$dbi->prepare($task);
$stj->execute;
}
my $counter=0;
while ($counter<60 && $numrecords<$numresults) {
$counter++;
my $stj=$dbi->prepare("select highestseen from z3950results where id=$resultsid");
$stj->execute;
my ($highestseen) = $stj->fetchrow;
if ($highestseen>($numrecords-30)) {
$counter=0;
print " $server rescanning\n";
my $scantimerstart=time();
for ($i=$numrecords+1; $i<=(($numresults<($numrecords+40)) ? ($numresults) : ($numrecords+40)); $i++) {
my $rec=$rs->record($i);
my $marcdata=$rec->rawdata();
$result.=$marcdata;
}
my $scantimerend=time();
($numresults<$numrecords+40) ? ($numrecords=$numresults) : ($numrecords += 40);
my $elapsed=$scantimerend-$scantimerstart;
if ($elapsed) {
my $speed=int($numresults/$elapsed*100)/100;
print " SPEED: $speed $server done $numrecords\n";
}
my $q_result=$dbi->quote($result);
($q_result) || ($q_result='""');
$now=time();
my $task="update z3950results set numdownloaded=$numrecords,results=$q_result where id=$resultsid";
my $stj=$dbi->prepare($task);
$stj->execute;
}
sleep 5;
}
}
}
# FIXME - There's already a $stj in this scope
my $stj=$dbi->prepare("update z3950results set active=0 where id=$resultsid");
$stj->execute;
eval {$stj->finish};
print " $server done.\n";
exit;
sub pe {
return 0;
my $code=$conn->errcode();
my $msg=$conn->errmsg();
my $ai=$conn->addinfo();
print << "EOF";
CODE: $code
MSG: $msg
ADDTL: $ai
EOF
return 0;
}
}
}
unless ($stillprocessing) {
#my $sti=$dbh->prepare("select enddate from z3950queue where id=$id");
#$sti->execute;
#my ($enddate) = $sti->fetchrow;
#unless ($enddate) {
}
} else {
}
}
$lastrun=time();
}
sleep 10;
}
}
sub reap {
$forkcounter--;
wait;
}
sub checkqueue {
$checkqueue=1;
}
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