z3950/processz3950queue

   1 #!/usr/bin/perl
   2
   3 # $Id$
   4
   5 use C4::Context;
   6 use DBI;
   7 use strict;
   8 use C4::Biblio;
   9 use C4::Output;
  10 use C4::Breeding;
  11 use Net::Z3950;
  12
  13
  14 if ($< == 0) {
  15     # Running as root, switch privs
  16     if (-d "/var/run") {
  17         open PID, ">/var/run/processz3950queue.pid";
  18         print PID $$."\n";
  19         close PID;
  20     }
  21     # Get real apacheuser from koha.conf or reparsing httpd.conf
  22     my $apacheuser='paul';
  23     my $uid=0;
  24     unless ($uid = (getpwnam($apacheuser))[2]) {
  25         die "Attempt to run daemon as non-existent or superuser\n";
  26     }
  27     $>=$uid;
  28     $<=$uid;
  29 }
  30 my $dbh = C4::Context->dbh;
  31
  32 my $sth=$dbh->prepare("update z3950results set active=0");
  33 $sth->execute;
  34 $sth->finish;
  35 $SIG{CHLD}='reap';
  36 $SIG{HUP}='checkqueue';
  37
  38
  39 my $logdir=$ARGV[0];
  40
  41 open PID, ">$logdir/processz3950queue.pid";
  42 print PID $$."\n";
  43 close PID;
  44
  45 my $reapcounter=0;
  46 my $forkcounter=0;
  47 my $checkqueue=1;
  48 my $pid=$$;
  49 my $lastrun=0;
  50 while (1) {
  51         if ((time-$lastrun)>5) {
  52                 print "starting loop\n";
  53                 if ($checkqueue) { # everytime a SIG{HUP} is recieved
  54                         $checkqueue=0;
  55                         my $sth=$dbh->prepare("select id,term,type,servers from z3950queue order by id");
  56                         $sth->execute;
  57                         while (my ($id, $term, $type, $servers) = $sth->fetchrow) {
  58                                 if ($forkcounter<12) {
  59                                         my $now=time();
  60                                         my $stk=$dbh->prepare("select id,server,startdate,enddate,numrecords,active from z3950results where queryid=$id");
  61                                         ($stk->execute) || (next);
  62                                         my %serverdone;
  63                                         unless ($stk->rows) {
  64                                                 my $sti=$dbh->prepare("update z3950queue set done=-1,startdate=$now where id=$id");
  65                                                 $sti->execute;
  66                                         }
  67                                         while (my ($r_id, $r_server,$r_startdate,$r_enddate,$r_numrecords,$active) = $stk->fetchrow) {
  68                                                 if ($r_enddate >0) {
  69                                                         $serverdone{$r_server}=1;
  70                                                 } elsif ($active) {
  71                                                         $serverdone{$r_server}=1;
  72                                                 } else {
  73                                                         $serverdone{$r_server}=-1;
  74                                                 }
  75                                         }
  76
  77                                         $stk->finish;
  78                                         my $attr='';
  79                                         if ($type eq 'isbn') {
  80                                                 $attr='1=7';
  81                                         } elsif ($type eq 'title') {
  82                                                 $attr='1=4';
  83                                         } elsif ($type eq 'author') {
  84                                                 $attr='1=1003';
  85                                         } elsif ($type eq 'lccn') {
  86                                                 $attr='1=9';
  87                                         } elsif ($type eq 'keyword') {
  88                                                 $attr='1=1016';
  89                                         }
  90                                         $term='"'.$term.'"';
  91                                         my $query="\@attr $attr $term";
  92                                         my $totalrecords=0;
  93                                         my $serverinfo;
  94                                         my $stillprocessing=0;
  95                                         my $globalname;
  96                                         foreach $serverinfo (split(/\s+/, $servers)) {
  97                                                 (next) if ($serverdone{$serverinfo} == 1);
  98                                                 my $stillprocessing=1;
  99                                                 if (my $pid=fork()) {
 100                                                         $forkcounter++;
 101                                                 } else {
 102                                                         my $dbi = C4::Context->dbh;
 103                                                         my ($name, $server, $database, $user, $password) = split(/\//, $serverinfo, 5);
 104                                                         $globalname=$name;
 105                                                         $server=~/(.*)\:(\d+)/;
 106                                                         my $servername=$1;
 107                                                         my $port=$2;
 108                                                         print "Processing $type=$term at $name $server $database (".($forkcounter+1)." forks)\n";
 109                                                         $now=time();
 110                                                         my $q_serverinfo=$dbi->quote($serverinfo);
 111                                                         my $resultsid;
 112                                                         if ($serverdone{$serverinfo}==-1) {
 113                                                                 my $stj=$dbi->prepare("select id from z3950results where server=$q_serverinfo and queryid=$id");
 114                                                                 $stj->execute;
 115                                                                 ($resultsid) = $stj->fetchrow;
 116                                                                 $stj->finish;
 117                                                         } else {
 118                                                                 my $stj=$dbi->prepare("select id from z3950results where server=$q_serverinfo and queryid=$id");
 119                                                                 $stj->execute;
 120                                                                 ($resultsid) = $stj->fetchrow;
 121                                                                 $stj->finish;
 122                                                                 unless ($resultsid) {
 123                                                                         $stj=$dbi->prepare("insert into z3950results (server, queryid, startdate) values ($q_serverinfo, $id, $now)");
 124                                                                         $stj->execute;
 125                                                                         $resultsid=$dbi->{'mysql_insertid'};
 126                                                                         $stj->finish;
 127                                                                 }
 128                                                         }
 129                                                         my $stj=$dbh->prepare("update z3950results set active=1 where id=$resultsid");
 130                                                         $stj->execute;
 131                                                         my $conn;
 132                                                         my $noconnection=0;
 133                                                         my $error=0;
 134                                                         if ($user) {
 135                                                                 eval { $conn= new Net::Z3950::Connection($servername, $port, databaseName => $database, user => $user, password => $password); };
 136                                                                 if ($@) {
 137                                                                         $noconnection=1;
 138                                                                 } else {
 139                                                                         $error=pe();
 140                                                                 }
 141                                                         } else {
 142                                                                 eval { $conn= new Net::Z3950::Connection($servername, $port, databaseName => $database); };
 143                                                                 if ($@) {
 144                                                                         $noconnection=1;
 145                                                                 } else {
 146                                                                         $error=pe();
 147                                                                 }
 148                                                         }
 149                                                         if ($noconnection || $error) {
 150                                                                 warn "no connection at $globalname ";
 151                                                         } else {
 152                                                                 eval { $conn->option(preferredRecordSyntax => Net::Z3950::RecordSyntax::USMARC);};
 153                                                                 if ($@) {
 154                                                                         print "$globalname ERROR: $@\n";
 155                                                                 } else {
 156                                                                         print "Q: $query\n";
 157                                                                         my $rs=$conn->search($query);
 158                                                                         pe();
 159                                                                         my $numresults=$rs->size();
 160                                                                         pe();
 161                                                                         my $i;
 162                                                                         my $result='';
 163                                                                         my $scantimerstart=time();
 164                                                                         for ($i=1; $i<=(($numresults<80) ? ($numresults) : (80)); $i++) {
 165                                                                                 my $rec=$rs->record($i);
 166                                                                                 my $marcdata=$rec->render();
 167                                                                                 my $marcrecord = MARC::File::USMARC::decode($rec->render());
 168                                                                                 warn "$globalname ==> ".$marcrecord->as_formatted();
 169                                                                                 $result.=$marcdata;
 170                                                                                 my ($notmarcrecord,$alreadyindb,$alreadyinfarm,$imported) = ImportBreeding($marcdata,1,"Z3950-$globalname");
 171                                                                         }
 172                                                                         my $scantimerend=time();
 173                                                                         my $numrecords;
 174                                                                         ($numresults<80) ? ($numrecords=$numresults) : ($numrecords=80);
 175                                                                         my $elapsed=$scantimerend-$scantimerstart;
 176                                                                         if ($elapsed) {
 177                                                                                 my $speed=int($numresults/$elapsed*100)/100;
 178                                                                                 print "$globalname   SPEED: $speed  $server done $numrecords\n";
 179                                                                         }
 180                                                                         my $q_result=$dbi->quote($result);
 181                                                                         ($q_result) || ($q_result='""');
 182                                                                         $now=time();
 183                                                                         if ($numresults >0) {
 184                                                                                 my $task="update z3950results set numrecords=$numresults,numdownloaded=$numrecords,highestseen=0,results=$q_result,enddate=$now where id=$resultsid";
 185                                                                                 my $stj=$dbi->prepare($task);
 186                                                                                 $stj->execute;
 187                                                                         } else { # no results...
 188                                                                                 my $task="update z3950results set numrecords=$numresults,numdownloaded=$numrecords,highestseen=0,results='',enddate=$now where id=$resultsid";
 189                                                                                 my $stj=$dbi->prepare($task);
 190                                                                                 $stj->execute;
 191                                                                         }
 192                                                                         my $counter=0;
 193                                                                         while ($counter<60 && $numrecords<$numresults) {
 194                                                                                 $counter++;
 195                                                                                 my $stj=$dbi->prepare("select highestseen from z3950results where id=$resultsid");
 196                                                                                 $stj->execute;
 197                                                                                 my ($highestseen) = $stj->fetchrow;
 198                                                                                 if ($highestseen>($numrecords-30)) {
 199                                                                                         $counter=0;
 200                                                                                         print "   $server rescanning\n";
 201                                                                                         my $scantimerstart=time();
 202                                                                                         for ($i=$numrecords+1; $i<=(($numresults<($numrecords+40)) ? ($numresults) : ($numrecords+40)); $i++) {
 203                                                                                                 my $rec=$rs->record($i);
 204                                                                                                 my $marcdata=$rec->rawdata();
 205                                                                                                 $result.=$marcdata;
 206                                                                                         }
 207                                                                                         my $scantimerend=time();
 208                                                                                         ($numresults<$numrecords+40) ? ($numrecords=$numresults) : ($numrecords += 40);
 209                                                                                         my $elapsed=$scantimerend-$scantimerstart;
 210                                                                                         if ($elapsed) {
 211                                                                                                 my $speed=int($numresults/$elapsed*100)/100;
 212                                                                                                 print "  SPEED: $speed  $server done $numrecords\n";
 213                                                                                         }
 214
 215                                                                                         my $q_result=$dbi->quote($result);
 216                                                                                         ($q_result) || ($q_result='""');
 217                                                                                         $now=time();
 218                                                                                         my $task="update z3950results set numdownloaded=$numrecords,results=$q_result where id=$resultsid";
 219                                                                                         my $stj=$dbi->prepare($task);
 220                                                                                         $stj->execute;
 221                                                                                 }
 222                                                                                 sleep 5;
 223                                                                         }
 224                                                                 }
 225                                                         }
 226                                                         # FIXME - There's already a $stj in this scope
 227                                                         my $stj=$dbi->prepare("update z3950results set active=0 where id=$resultsid");
 228                                                         $stj->execute;
 229                                                         eval {$stj->finish};
 230                                                         print "    $server done.\n";
 231                                                         exit;
 232 sub pe {
 233 #       return 0;
 234         my $code=$conn->errcode();
 235         my $msg=$conn->errmsg();
 236         my $ai=$conn->addinfo();
 237         print << "EOF";
 238 CODE:  $code
 239 MSG:   $msg
 240 ADDTL: $ai
 241 EOF
 242         return 0;
 243 }
 244                                                 }
 245                                         }
 246                                         unless ($stillprocessing) {
 247                                                 #my $sti=$dbh->prepare("select enddate from z3950queue where id=$id");
 248                                                 #$sti->execute;
 249                                                 #my ($enddate) = $sti->fetchrow;
 250                                                 #unless ($enddate) {
 251                                         }
 252                                 } else {
 253                                 }
 254                         }
 255                         $lastrun=time();
 256                 }
 257                 sleep 10;
 258         }
 259 }
 260
 261 sub reap {
 262     $forkcounter--;
 263     wait;
 264 }
 265
 266
 267 sub checkqueue {
 268     $checkqueue=1;
 269 }
 270
 271