--- loncom/lonsql 2002/08/06 13:48:47 1.51
+++ loncom/lonsql 2007/08/31 12:33:25 1.87
@@ -3,7 +3,7 @@
# The LearningOnline Network
# lonsql - LON TCP-MySQL-Server Daemon for handling database requests.
#
-# $Id: lonsql,v 1.51 2002/08/06 13:48:47 matthew Exp $
+# $Id: lonsql,v 1.87 2007/08/31 12:33:25 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -39,10 +39,59 @@ lonsql - LON TCP-MySQL-Server Daemon for
This script should be run as user=www.
Note that a lonsql.pid file contains the pid of the parent process.
-=head1 DESCRIPTION
+=head1 OVERVIEW
-lonsql is many things to many people. To me, it is a source file in need
-of documentation.
+=head2 Purpose within LON-CAPA
+
+LON-CAPA is meant to distribute A LOT of educational content to A LOT
+of people. It is ineffective to directly rely on contents within the
+ext2 filesystem to be speedily scanned for on-the-fly searches of
+content descriptions. (Simply put, it takes a cumbersome amount of
+time to open, read, analyze, and close thousands of files.)
+
+The solution is to index various data fields that are descriptive of
+the educational resources on a LON-CAPA server machine in a
+database. Descriptive data fields are referred to as "metadata". The
+question then arises as to how this metadata is handled in terms of
+the rest of the LON-CAPA network without burdening client and daemon
+processes.
+
+The obvious solution, using lonc to send a query to a lond process,
+doesn't work so well in general as you can see in the following
+example:
+
+ lonc= loncapa client process A-lonc= a lonc process on Server A
+ lond= loncapa daemon process
+
+ database command
+ A-lonc --------TCP/IP----------------> B-lond
+
+The problem emerges that A-lonc and B-lond are kept waiting for the
+MySQL server to "do its stuff", or in other words, perform the
+conceivably sophisticated, data-intensive, time-sucking database
+transaction. By tying up a lonc and lond process, this significantly
+cripples the capabilities of LON-CAPA servers.
+
+The solution is to offload the work onto another process, and use
+lonc and lond just for requests and notifications of completed
+processing:
+
+ database command
+
+ A-lonc ---------TCP/IP-----------------> B-lond =====> B-lonsql
+ <---------------------------------/ |
+ "ok, I'll get back to you..." |
+ |
+ /
+ A-lond <------------------------------- B-lonc <======
+ "Guess what? I have the result!"
+
+Of course, depending on success or failure, the messages may vary, but
+the principle remains the same where a separate pool of children
+processes (lonsql's) handle the MySQL database manipulations.
+
+Thus, lonc and lond spend effectively no time waiting on results from
+the database.
=head1 Internals
@@ -53,18 +102,19 @@ of documentation.
use strict;
use lib '/home/httpd/lib/perl/';
+use LONCAPA;
use LONCAPA::Configuration;
+use LONCAPA::lonmetadata();
+use Apache::lonnet;
use IO::Socket;
use Symbol;
use POSIX;
use IO::Select;
-use IO::File;
-use Socket;
-use Fcntl;
-use Tie::RefHash;
use DBI;
use File::Find;
+use localenroll;
+use GDBM_File;
########################################################
########################################################
@@ -116,76 +166,6 @@ my $MAX_CLIENTS_PER_CHILD = 5; # numb
my %children = (); # keys are current child process IDs
my $children = 0; # current number of children
-########################################################
-########################################################
-
-=pod
-
-=item Functions required for forking
-
-=over 4
-
-=item REAPER
-
-REAPER takes care of dead children.
-
-=item HUNTSMAN
-
-Signal handler for SIGINT.
-
-=item HUPSMAN
-
-Signal handler for SIGHUP
-
-=item DISCONNECT
-
-Disconnects from database.
-
-=back
-
-=cut
-
-########################################################
-########################################################
-sub REAPER { # takes care of dead children
- $SIG{CHLD} = \&REAPER;
- my $pid = wait;
- $children --;
- &logthis("Child $pid died");
- delete $children{$pid};
-}
-
-sub HUNTSMAN { # signal handler for SIGINT
- local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
- kill 'INT' => keys %children;
- my $execdir=$perlvar{'lonDaemons'};
- unlink("$execdir/logs/lonsql.pid");
- &logthis("CRITICAL: Shutting down");
- $unixsock = "mysqlsock";
- my $port="$perlvar{'lonSockDir'}/$unixsock";
- unlink($port);
- exit; # clean up with dignity
-}
-
-sub HUPSMAN { # signal handler for SIGHUP
- local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
- kill 'INT' => keys %children;
- close($server); # free up socket
- &logthis("CRITICAL: Restarting");
- my $execdir=$perlvar{'lonDaemons'};
- $unixsock = "mysqlsock";
- my $port="$perlvar{'lonSockDir'}/$unixsock";
- unlink($port);
- exec("$execdir/lonsql"); # here we go again
-}
-
-sub DISCONNECT {
- $dbh->disconnect or
- &logthis("WARNING: Couldn't disconnect from database ".
- " $DBI::errstr : $@");
- exit;
-}
-
###################################################################
###################################################################
@@ -222,9 +202,24 @@ my $run =0; # running count
#
# Read loncapa_apache.conf and loncapa.conf
#
-my $perlvarref=LONCAPA::Configuration::read_conf('loncapa_apache.conf',
- 'loncapa.conf');
-my %perlvar=%{$perlvarref};
+my %perlvar=%{&LONCAPA::Configuration::read_conf('loncapa.conf')};
+#
+# Write the /home/www/.my.cnf file
+my $conf_file = '/home/www/.my.cnf';
+if (! -e $conf_file) {
+ if (open MYCNF, ">$conf_file") {
+ print MYCNF <<"ENDMYCNF";
+[client]
+user=www
+password=$perlvar{'lonSqlAccess'}
+ENDMYCNF
+ close MYCNF;
+ } else {
+ warn "Unable to write $conf_file, continuing";
+ }
+}
+
+
#
# Make sure that database can be accessed
#
@@ -237,37 +232,32 @@ unless ($dbh = DBI->connect("DBI:mysql:l
my $subj="LON: $perlvar{'lonHostID'} Cannot connect to database!";
system("echo 'Cannot connect to MySQL database!' |".
" mailto $emailto -s '$subj' > /dev/null");
+
+ open(SMP,'>/home/httpd/html/lon-status/mysql.txt');
+ print SMP 'time='.time.'&mysql=defunct'."\n";
+ close(SMP);
+
exit 1;
} else {
+ unlink('/home/httpd/html/lon-status/mysql.txt');
$dbh->disconnect;
}
+
#
# Check if other instance running
#
my $pidfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";
if (-e $pidfile) {
- my $lfh=IO::File->new("$pidfile");
+ open(my $lfh,"$pidfile");
my $pide=<$lfh>;
chomp($pide);
if (kill 0 => $pide) { die "already running"; }
}
-#
-# Read hosts file
-#
-my %hostip;
-my $thisserver;
+
my $PREFORK=4; # number of children to maintain, at least four spare
-open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file";
-while (my $configline=) {
- my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
- chomp($ip);
- $hostip{$ip}=$id;
- $thisserver=$name if ($id eq $perlvar{'lonHostID'});
- $PREFORK++;
-}
-close(CONFIG);
#
-$PREFORK=int($PREFORK/4);
+#$PREFORK=int($PREFORK/4);
+
#
# Create a socket to talk to lond
#
@@ -280,21 +270,23 @@ unless ($server=IO::Socket::UNIX->new(Lo
Listen => 10)) {
print "in socket error:$@\n";
}
-########################################################
-########################################################
+
#
# Fork once and dissociate
+#
my $fpid=fork;
exit if $fpid;
die "Couldn't fork: $!" unless defined ($fpid);
POSIX::setsid() or die "Can't start new session: $!";
+
#
# Write our PID on disk
my $execdir=$perlvar{'lonDaemons'};
open (PIDSAVE,">$execdir/logs/lonsql.pid");
print PIDSAVE "$$\n";
close(PIDSAVE);
-&logthis("CRITICAL: ---------- Starting ----------");
+&logthis("CRITICAL: ---------- Starting ----------");
+
#
# Ignore signals generated during initial startup
$SIG{HUP}=$SIG{USR1}='IGNORE';
@@ -303,11 +295,13 @@ $SIG{HUP}=$SIG{USR1}='IGNORE';
for (1 .. $PREFORK) {
make_new_child();
}
+
#
# Install signal handlers.
$SIG{CHLD} = \&REAPER;
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN;
$SIG{HUP} = \&HUPSMAN;
+
#
# And maintain the population.
while (1) {
@@ -362,7 +356,7 @@ sub make_new_child {
$perlvar{'lonSqlAccess'},
{ RaiseError =>0,PrintError=>0})) {
sleep(10+int(rand(20)));
- &logthis("WARNING: Couldn't connect to database".
+ &logthis("WARNING: Couldn't connect to database".
": $@");
# "($st secs): $@");
print "database handle error\n";
@@ -378,20 +372,22 @@ sub make_new_child {
$run = $run+1;
my $userinput = <$client>;
chomp($userinput);
+ $userinput=~s/\:($LONCAPA::domain_re)$//;
+ my $searchdomain=$1;
#
my ($conserver,$query,
$arg1,$arg2,$arg3)=split(/&/,$userinput);
my $query=unescape($query);
#
#send query id which is pid_unixdatetime_runningcounter
- my $queryid = $thisserver;
+ my $queryid = &Apache::lonnet::hostname($perlvar{'lonHostID'});
$queryid .="_".($$)."_";
$queryid .= time."_";
$queryid .= $run;
print $client "$queryid\n";
#
- &logthis("QUERY: $query - $arg1 - $arg2 - $arg3");
- sleep 1;
+ # &logthis("QUERY: $query - $arg1 - $arg2 - $arg3 - $queryid");
+ # sleep 1;
#
my $result='';
#
@@ -410,27 +406,143 @@ sub make_new_child {
} else {
$result=&courselog($path,$command);
}
+ $result = &escape($result);
} else {
&logthis('Unable to do log query: '.$uname.'@'.$udom);
$result='no_such_file';
}
# end of log query
+ } elsif (($query eq 'fetchenrollment') ||
+ ($query eq 'institutionalphotos')) {
+ # retrieve institutional class lists
+ my $dom = &unescape($arg1);
+ my %affiliates = ();
+ my %replies = ();
+ my $locresult = '';
+ my $querystr = &unescape($arg3);
+ foreach (split/%%/,$querystr) {
+ if (/^([^=]+)=([^=]+)$/) {
+ @{$affiliates{$1}} = split/,/,$2;
+ }
+ }
+ if ($query eq 'fetchenrollment') {
+ $locresult = &localenroll::fetch_enrollment($dom,\%affiliates,\%replies);
+ } elsif ($query eq 'institutionalphotos') {
+ my $crs = &unescape($arg2);
+ eval {
+ local($SIG{__DIE__})='DEFAULT';
+ $locresult = &localenroll::institutional_photos($dom,$crs,\%affiliates,\%replies,'update');
+ };
+ if ($@) {
+ $locresult = 'error';
+ }
+ }
+ $result = &escape($locresult.':');
+ if ($locresult) {
+ $result .= &escape(join(':',map{$_.'='.$replies{$_}} keys %replies));
+ }
+ } elsif ($query eq 'usersearch') {
+ my $srchdomain = &unescape($arg1);
+ my @items = split(/%%/,$arg2);
+ my ($srchby,$srchtype) = map {&unescape($_)} @items;
+ my $srchterm = &unescape($arg3);
+ my $quoted_dom = $dbh->quote( $srchdomain );
+ my ($query,$quoted_srchterm,@fields);
+ my ($table_columns,$table_indices) =
+ &LONCAPA::lonmetadata::describe_metadata_storage('allusers');
+ foreach my $coldata (@{$table_columns}) {
+ push(@fields,$coldata->{'name'});
+ }
+ my $fieldlist = join(',',@fields);
+ $query = "SELECT $fieldlist FROM allusers WHERE (domain = $quoted_dom AND ";
+ if ($srchby eq 'lastfirst') {
+ my ($fraglast,$fragfirst) = split(/,/,$srchterm);
+ $fragfirst =~ s/^\s+//;
+ $fraglast =~ s/\s+$//;
+ if ($srchtype eq 'exact') {
+ $query .= 'lastname = '.$dbh->quote($fraglast).
+ ' AND firstname = '.$dbh->quote($fragfirst);
+ } elsif ($srchtype eq 'begins') {
+ $query .= 'lastname LIKE '.$dbh->quote($fraglast.'%').' AND firstname LIKE '.$dbh->quote($fragfirst.'%');
+ } else {
+ $query .= 'lastname LIKE '.$dbh->quote('%'.$fraglast.'%').' AND firstname LIKE '.$dbh->quote('%'.$fragfirst.'%');
+ }
+ } else {
+ my %srchfield = (
+ uname => 'username',
+ lastname => 'lastname',
+ );
+ if ($srchtype eq 'exact') {
+ $query .= $srchfield{$srchby}.' = '.$dbh->quote($srchterm);
+ } elsif ($srchtype eq 'begins') {
+ $query .= $srchfield{$srchby}.' LIKE '.$dbh->quote($srchterm.'%');
+ } else {
+ $query .= $srchfield{$srchby}.' LIKE '.$dbh->quote('%'.$srchterm.'%');
+ }
+ }
+ $query .= ") ORDER BY username ";
+ my $sth = $dbh->prepare($query);
+ if ($sth->execute()) {
+ my @results;
+ while (my @row = $sth->fetchrow_array) {
+ my @items;
+ for (my $i=0; $i<@row; $i++) {
+ push(@items,&escape($fields[$i]).'='.&escape($row[$i]));
+ }
+ push(@results,join(":", @items));
+ }
+ $sth->finish;
+ $result = &escape(join("&",@results));
+ } else {
+ &logthis(''.
+ 'WARNING: Could not retrieve from database:'.
+ $sth->errstr().'');
+ }
+ } elsif ($query eq 'instdirsearch') {
+ $result = &do_inst_dir_search($searchdomain,$arg1,$arg2,$arg3);
+ } elsif ($query eq 'prepare activity log') {
+ my ($cid,$domain) = map {&unescape($_);} ($arg1,$arg2);
+ &logthis('preparing activity log tables for '.$cid);
+ my $command =
+ qq{$perlvar{'lonDaemons'}/parse_activity_log.pl -course=$cid -domain=$domain};
+ system($command);
+ &logthis($command);
+ my $returnvalue = $?>>8;
+ if ($returnvalue) {
+ $result = 'error: parse_activity_log.pl returned '.
+ $returnvalue;
+ } else {
+ $result = 'success';
+ }
+ } elsif (($query eq 'portfolio_metadata') ||
+ ($query eq 'portfolio_access')) {
+ $result = &portfolio_table_update($query,$arg1,$arg2,
+ $arg3);
+ } elsif ($query eq 'allusers') {
+ my ($uname,$udom) = map {&unescape($_);} ($arg1,$arg2);
+ my %userdata;
+ my (@data) = split(/\%\%/,$arg3);
+ foreach my $item (@data) {
+ my ($key,$value) = split(/=/,$item);
+ $userdata{$key} = &unescape($value);
+ }
+ $userdata{'username'} = $uname;
+ $userdata{'domain'} = $udom;
+ $result = &allusers_table_update($query,$uname,$udom,\%userdata);
} else {
# Do an sql query
- $result = &do_sql_query($query,$arg1,$arg2);
+ $result = &do_sql_query($query,$arg1,$arg2,$searchdomain);
}
# result does not need to be escaped because it has already been
# escaped.
#$result=&escape($result);
- # reply with result, append \n unless already there
- $result.="\n" unless ($result=~/\n$/);
- &reply("queryreply:$queryid:$result",$conserver);
+ &Apache::lonnet::reply("queryreply:$queryid:$result",$conserver);
}
# tidy up gracefully and finish
#
# close the database handle
$dbh->disconnect
- or &logthis("WARNING: Couldn't disconnect".
+ or &logthis("WARNING: Couldn't disconnect".
" from database $DBI::errstr : $@");
# this exit is VERY important, otherwise the child will become
# a producer of more and more children, forking yourself into
@@ -439,6 +551,32 @@ sub make_new_child {
}
}
+sub do_inst_dir_search {
+ my ($domain,$srchby,$srchterm,$srchtype) = @_;
+ $srchby = &unescape($srchby);
+ $srchterm = &unescape($srchterm);
+ $srchtype = &unescape($srchtype);
+ my (%instusers,%instids,$result,$response);
+ eval {
+ local($SIG{__DIE__})='DEFAULT';
+ $result=&localenroll::get_userinfo($domain,undef,undef,\%instusers,
+ \%instids,undef,$srchby,$srchterm,
+ $srchtype);
+ };
+ if ($result eq 'ok') {
+ if (%instusers) {
+ foreach my $key (keys(%instusers)) {
+ my $usrstr = &Apache::lonnet::freeze_escape($instusers{$key});
+ $response .=&escape(&escape($key).'='.$usrstr).'&';
+ }
+ }
+ $response=~s/\&$//;
+ } else {
+ $response = 'unavailable';
+ }
+ return $response;
+}
+
########################################################
########################################################
@@ -470,7 +608,18 @@ sub process_file {
}
sub do_sql_query {
- my ($query,$custom,$customshow) = @_;
+ my ($query,$custom,$customshow,$searchdomain) = @_;
+
+#
+# limit to searchdomain if given and table is metadata
+#
+ if (($searchdomain) && ($query=~/FROM metadata/)) {
+ $query.=' HAVING (domain="'.$searchdomain.'")';
+ }
+# &logthis('doing query ('.$searchdomain.')'.$query);
+
+
+
$custom = &unescape($custom);
$customshow = &unescape($customshow);
#
@@ -485,8 +634,9 @@ sub do_sql_query {
#prepare and execute the query
my $sth = $dbh->prepare($query);
unless ($sth->execute()) {
- &logthis("WARNING: ".
- "Could not retrieve from database: $@");
+ &logthis(''.
+ 'WARNING: Could not retrieve from database:'.
+ $sth->errstr().'');
} else {
my $aref=$sth->fetchall_arrayref;
foreach my $row (@$aref) {
@@ -529,7 +679,7 @@ sub do_sql_query {
my $customresult='';
my @results;
foreach my $metafile (@metalist) {
- my $fh=IO::File->new($metafile);
+ open(my $fh,$metafile);
my @lines=<$fh>;
my $stuff=join('',@lines);
if ($stuff=~/$custom/s) {
@@ -566,142 +716,210 @@ sub do_sql_query {
} # End of &do_sql_query
} # End of scoping curly braces for &process_file and &do_sql_query
-########################################################
-########################################################
-=pod
-
-=item &logthis
-
-Inputs: $message, the message to log
-
-Returns: nothing
-
-Writes $message to the logfile.
-
-=cut
-
-########################################################
-########################################################
-sub logthis {
- my $message=shift;
- my $execdir=$perlvar{'lonDaemons'};
- my $fh=IO::File->new(">>$execdir/logs/lonsqlfinal.log");
- my $now=time;
- my $local=localtime($now);
- print $fh "$local ($$): $message\n";
+sub portfolio_table_update {
+ my ($query,$arg1,$arg2,$arg3) = @_;
+ my %tablenames = (
+ 'portfolio' => 'portfolio_metadata',
+ 'access' => 'portfolio_access',
+ 'addedfields' => 'portfolio_addedfields',
+ );
+ my $result = 'ok';
+ my $tablechk = &check_table($query);
+ if ($tablechk == 0) {
+ my $request =
+ &LONCAPA::lonmetadata::create_metadata_storage($query,$query);
+ $dbh->do($request);
+ if ($dbh->err) {
+ &logthis("create $query".
+ " ERROR: ".$dbh->errstr);
+ $result = 'error';
+ }
+ }
+ if ($result eq 'ok') {
+ my ($uname,$udom,$group) = split(/:/,&unescape($arg1));
+ my $file_name = &unescape($arg2);
+ my $action = $arg3;
+ my $is_course = 0;
+ if ($group ne '') {
+ $is_course = 1;
+ }
+ my $urlstart = '/uploaded/'.$udom.'/'.$uname;
+ my $pathstart = &propath($udom,$uname).'/userfiles';
+ my ($fullpath,$url);
+ if ($is_course) {
+ $fullpath = $pathstart.'/groups/'.$group.'/portfolio'.
+ $file_name;
+ $url = $urlstart.'/groups/'.$group.'/portfolio'.$file_name;
+ } else {
+ $fullpath = $pathstart.'/portfolio'.$file_name;
+ $url = $urlstart.'/portfolio'.$file_name;
+ }
+ if ($query eq 'portfolio_metadata') {
+ if ($action eq 'delete') {
+ my %loghash = &LONCAPA::lonmetadata::process_portfolio_metadata($dbh,undef,\%tablenames,$url,$fullpath,$is_course,$udom,$uname,$group,'update');
+ } elsif (-e $fullpath.'.meta') {
+ my %loghash = &LONCAPA::lonmetadata::process_portfolio_metadata($dbh,undef,\%tablenames,$url,$fullpath,$is_course,$udom,$uname,$group,'update');
+ if (keys(%loghash) > 0) {
+ &portfolio_logging(%loghash);
+ }
+ }
+ } elsif ($query eq 'portfolio_access') {
+ my %access = &get_access_hash($uname,$udom,$group.$file_name);
+ my %loghash =
+ &LONCAPA::lonmetadata::process_portfolio_access_data($dbh,undef,
+ \%tablenames,$url,$fullpath,\%access,'update');
+ if (keys(%loghash) > 0) {
+ &portfolio_logging(%loghash);
+ } else {
+ my $available = 0;
+ foreach my $key (keys(%access)) {
+ my ($num,$scope,$end,$start) =
+ ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
+ if ($scope eq 'public' || $scope eq 'guest') {
+ $available = 1;
+ last;
+ }
+ }
+ if ($available) {
+ # Retrieve current values
+ my $condition = 'url='.$dbh->quote("$url");
+ my ($error,$row) =
+ &LONCAPA::lonmetadata::lookup_metadata($dbh,$condition,undef,
+ 'portfolio_metadata');
+ if (!$error) {
+ if (!(ref($row->[0]) eq 'ARRAY')) {
+ my %loghash =
+ &LONCAPA::lonmetadata::process_portfolio_metadata($dbh,undef,
+ \%tablenames,$url,$fullpath,$is_course,$udom,$uname,$group);
+ if (keys(%loghash) > 0) {
+ &portfolio_logging(%loghash);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ return $result;
}
-# -------------------------------------------------- Non-critical communication
-
-########################################################
-########################################################
-
-=pod
-
-=item &subreply
-
-Sends a command to a server. Called only by &reply.
-
-Inputs: $cmd,$server
-
-Returns: The results of the message or 'con_lost' on error.
-
-=cut
-
-########################################################
-########################################################
-sub subreply {
- my ($cmd,$server)=@_;
- my $peerfile="$perlvar{'lonSockDir'}/$server";
- my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile",
- Type => SOCK_STREAM,
- Timeout => 10)
- or return "con_lost";
- print $sclient "$cmd\n";
- my $answer=<$sclient>;
- chomp($answer);
- $answer="con_lost" if (!$answer);
- return $answer;
+sub get_access_hash {
+ my ($uname,$udom,$file) = @_;
+ my $hashref = &tie_user_hash($udom,$uname,'file_permissions',
+ &GDBM_READER());
+ my %curr_perms;
+ my %access;
+ if ($hashref) {
+ while (my ($key,$value) = each(%$hashref)) {
+ $key = &unescape($key);
+ next if ($key =~ /^error: 2 /);
+ $curr_perms{$key}=&Apache::lonnet::thaw_unescape($value);
+ }
+ if (!&untie_user_hash($hashref)) {
+ &logthis("error: ".($!+0)." untie (GDBM) Failed");
+ }
+ } else {
+ &logthis("error: ".($!+0)." tie (GDBM) Failed");
+ }
+ if (keys(%curr_perms) > 0) {
+ if (ref($curr_perms{$file."\0".'accesscontrol'}) eq 'HASH') {
+ foreach my $acl (keys(%{$curr_perms{$file."\0".'accesscontrol'}})) {
+ $access{$acl} = $curr_perms{$file."\0".$acl};
+ }
+ }
+ }
+ return %access;
}
-########################################################
-########################################################
-
-=pod
-
-=item &reply
-
-Sends a command to a server.
-
-Inputs: $cmd,$server
-
-Returns: The results of the message or 'con_lost' on error.
-
-=cut
-
-########################################################
-########################################################
-sub reply {
- my ($cmd,$server)=@_;
- my $answer;
- if ($server ne $perlvar{'lonHostID'}) {
- $answer=subreply($cmd,$server);
- if ($answer eq 'con_lost') {
- $answer=subreply("ping",$server);
- $answer=subreply($cmd,$server);
+sub allusers_table_update {
+ my ($query,$uname,$udom,$userdata) = @_;
+ my %tablenames = (
+ 'allusers' => 'allusers',
+ );
+ my $result = 'ok';
+ my $tablechk = &check_table($query);
+ if ($tablechk == 0) {
+ my $request =
+ &LONCAPA::lonmetadata::create_metadata_storage($query,$query);
+ $dbh->do($request);
+ if ($dbh->err) {
+ &logthis("create $query".
+ " ERROR: ".$dbh->errstr);
+ $result = 'error';
+ }
}
- } else {
- $answer='self_reply';
- $answer=subreply($cmd,$server);
- }
- return $answer;
+ if ($result eq 'ok') {
+ my %loghash =
+ &LONCAPA::lonmetadata::process_allusers_data($dbh,undef,
+ \%tablenames,$uname,$udom,$userdata,'update');
+ foreach my $key (keys(%loghash)) {
+ &logthis($loghash{$key});
+ }
+ }
+ return $result;
}
-########################################################
-########################################################
-
-=pod
-
-=item &escape
-
-Escape special characters in a string.
-
-Inputs: string to escape
-
-Returns: The input string with special characters escaped.
+###########################################
+sub check_table {
+ my ($table_id) = @_;
+ my $sth=$dbh->prepare('SHOW TABLES');
+ $sth->execute();
+ my $aref = $sth->fetchall_arrayref;
+ $sth->finish();
+ if ($sth->err()) {
+ &logthis("fetchall_arrayref after SHOW TABLES".
+ " ERROR: ".$sth->errstr);
+ return undef;
+ }
+ my $result = 0;
+ foreach my $table (@{$aref}) {
+ if ($table->[0] eq $table_id) {
+ $result = 1;
+ last;
+ }
+ }
+ return $result;
+}
-=cut
+###########################################
-########################################################
-########################################################
-sub escape {
- my $str=shift;
- $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
- return $str;
+sub portfolio_logging {
+ my (%portlog) = @_;
+ foreach my $key (keys(%portlog)) {
+ if (ref($portlog{$key}) eq 'HASH') {
+ foreach my $item (keys(%{$portlog{$key}})) {
+ &logthis($portlog{$key}{$item});
+ }
+ }
+ }
}
+
########################################################
########################################################
=pod
-=item &unescape
+=item &logthis
-Unescape special characters in a string.
+Inputs: $message, the message to log
-Inputs: string to unescape
+Returns: nothing
-Returns: The input string with special characters unescaped.
+Writes $message to the logfile.
=cut
########################################################
########################################################
-sub unescape {
- my $str=shift;
- $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
- return $str;
+sub logthis {
+ my $message=shift;
+ my $execdir=$perlvar{'lonDaemons'};
+ open(my $fh,">>$execdir/logs/lonsql.log");
+ my $now=time;
+ my $local=localtime($now);
+ print $fh "$local ($$): $message\n";
}
########################################################
@@ -739,31 +957,6 @@ sub ishome {
=pod
-=item &propath
-
-Inputs: user name, user domain
-
-Returns: The full path to the users directory.
-
-=cut
-
-########################################################
-########################################################
-sub propath {
- my ($udom,$uname)=@_;
- $udom=~s/\W//g;
- $uname=~s/\W//g;
- my $subdir=$uname.'__';
- $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
- my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
- return $proname;
-}
-
-########################################################
-########################################################
-
-=pod
-
=item &courselog
Inputs: $path, $command
@@ -863,28 +1056,89 @@ sub userlog {
{ $include=0; }
if (($filters{'end'}) && ($timestamp>$filters{'end'}))
{ $include=0; }
+ if (($filters{'action'} eq 'Role') && ($log !~/^Role/))
+ { $include=0; }
if (($filters{'action'} eq 'log') && ($log!~/^Log/)) { $include=0; }
if (($filters{'action'} eq 'check') && ($log!~/^Check/))
{ $include=0; }
if ($include) {
- push(@results,$timestamp.':'.$log);
+ push(@results,$timestamp.':'.$host.':'.&escape($log));
}
}
close IN;
return join('&',sort(@results));
}
+########################################################
+########################################################
+=pod
+
+=item Functions required for forking
+
+=over 4
+
+=item REAPER
+
+REAPER takes care of dead children.
+=item HUNTSMAN
+
+Signal handler for SIGINT.
+
+=item HUPSMAN
+
+Signal handler for SIGHUP
+
+=item DISCONNECT
+Disconnects from database.
+=back
+=cut
+########################################################
+########################################################
+sub REAPER { # takes care of dead children
+ $SIG{CHLD} = \&REAPER;
+ my $pid = wait;
+ $children --;
+ &logthis("Child $pid died");
+ delete $children{$pid};
+}
+sub HUNTSMAN { # signal handler for SIGINT
+ local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
+ kill 'INT' => keys %children;
+ my $execdir=$perlvar{'lonDaemons'};
+ unlink("$execdir/logs/lonsql.pid");
+ &logthis("CRITICAL: Shutting down");
+ $unixsock = "mysqlsock";
+ my $port="$perlvar{'lonSockDir'}/$unixsock";
+ unlink($port);
+ exit; # clean up with dignity
+}
+sub HUPSMAN { # signal handler for SIGHUP
+ local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
+ kill 'INT' => keys %children;
+ close($server); # free up socket
+ &logthis("CRITICAL: Restarting");
+ my $execdir=$perlvar{'lonDaemons'};
+ $unixsock = "mysqlsock";
+ my $port="$perlvar{'lonSockDir'}/$unixsock";
+ unlink($port);
+ exec("$execdir/lonsql"); # here we go again
+}
+sub DISCONNECT {
+ $dbh->disconnect or
+ &logthis("WARNING: Couldn't disconnect from database ".
+ " $DBI::errstr : $@");
+ exit;
+}
-# ----------------------------------- POD (plain old documentation, CPAN style)
=pod