--- loncom/lonsql 2001/03/22 16:10:53 1.8
+++ loncom/lonsql 2001/03/27 20:08:23 1.27
@@ -13,6 +13,16 @@ use Fcntl;
use Tie::RefHash;
use DBI;
+my @metalist;
+# ----------------- Code to enable 'find' subroutine listing of the .meta files
+require "find.pl";
+sub wanted {
+ (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) &&
+ -f _ &&
+ /^.*\.meta$/ &&
+ push(@metalist,"$dir/$_");
+}
+
$childmaxattempts=10;
$run =0;#running counter to generate the query-id
@@ -202,9 +212,11 @@ sub make_new_child {
my $userinput = <$client>;
chomp($userinput);
- my ($conserver,$querytmp,$customtmp)=split(/&/,$userinput);
+ my ($conserver,$querytmp,
+ $customtmp,$customshowtmp)=split(/&/,$userinput);
my $query=unescape($querytmp);
my $custom=unescape($customtmp);
+ my $customshow=unescape($customshowtmp);
#send query id which is pid_unixdatetime_runningcounter
$queryid = $thisserver;
@@ -213,24 +225,83 @@ sub make_new_child {
$queryid .= $run;
print $client "$queryid\n";
+ &logthis("QUERY: $query");
+ &logthis("QUERY: $query");
+ sleep 1;
#prepare and execute the query
my $sth = $dbh->prepare($query);
my $result;
- unless ($sth->execute())
- {
- &logthis("WARNING: Could not retrieve from database: $@");
- $result="";
- }
- else {
- my $r1=$sth->fetchall_arrayref;
- my @r2; map {my $a=$_; my @b=map {escape($_)} @$a; push @r2,join(",", @b)} (@$r1);
- $result=join("&",@r2) . "\n";
+ my @files;
+ my $subsetflag=0;
+ if ($query) {
+ unless ($sth->execute())
+ {
+ &logthis("WARNING: Could not retrieve from database: $@");
+ $result="";
+ }
+ else {
+ my $r1=$sth->fetchall_arrayref;
+ my @r2;
+ map {my $a=$_;
+ my @b=map {escape($_)} @$a;
+ push @files,@{$a}[3];
+ push @r2,join(",", @b)
+ } (@$r1);
+ $result=join("&",@r2);
+ }
}
-
# do custom metadata searching here and build into result
- &logthis("am going to do custom query for $custom");
-
+ if ($custom) {
+ &logthis("am going to do custom query for $custom");
+ if ($query) {
+ @metalist=map {$perlvar{'lonDocRoot'}.$_.'.meta'} @files;
+ }
+ else {
+ @metalist=(); pop @metalist;
+ &find("$perlvar{'lonDocRoot'}/res");
+ }
+# &logthis("FILELIST:" . join(":::",@metalist));
+ # if file is indicated in sql database and
+ # not part of sql-relevant query, do not pattern match.
+ # if file is not in sql database, output error.
+ # if file is indicated in sql database and is
+ # part of query result list, then do the pattern match.
+ my $customresult='';
+ my @r2;
+ foreach my $m (@metalist) {
+ my $fh=IO::File->new($m);
+ my @lines=<$fh>;
+ my $stuff=join('',@lines);
+ if ($stuff=~/$custom/s) {
+ foreach my $f ('abstract','author','copyright',
+ 'creationdate','keywords','language',
+ 'lastrevisiondate','mime','notes',
+ 'owner','subject','title') {
+ $stuff=~s/\n?\<$f[^\>]*\>.*?<\/$f[^\>]*\>\n?//;
+ }
+ my $m2=$m; my $docroot=$perlvar{'lonDocRoot'};
+ $m2=~s/^$docroot//;
+ $m2=~s/\.meta$//;
+ unless ($query) {
+ my $q2="select * from metadata where url like '$m2'";
+ my $sth = $dbh->prepare($q2);
+ $sth->execute();
+ my $r1=$sth->fetchall_arrayref;
+ map {my $a=$_;
+ my @b=map {escape($_)} @$a;
+ push @files,@{$a}[3];
+ push @r2,join(",", @b)
+ } (@$r1);
+ }
+# &logthis("found: $stuff");
+ $customresult.='&custom='.escape($m2).','.escape($stuff);
+ }
+ }
+ $result=join("&",@r2) unless $query;
+ $result.=$customresult;
+ }
# reply with result
+ $result.="\n" if $result;
&reply("queryreply:$queryid:$result",$conserver);
}
500 Internal Server Error
Internal Server Error
The server encountered an internal error or
misconfiguration and was unable to complete
your request.
Please contact the server administrator at
root@localhost to inform them of the time this error occurred,
and the actions you performed just before this error.
More information about this error may be available
in the server error log.