--- loncom/metadata_database/searchcat.pl 2002/05/17 14:03:04 1.18 +++ loncom/metadata_database/searchcat.pl 2003/02/03 18:03:53 1.31 @@ -2,7 +2,7 @@ # The LearningOnline Network # searchcat.pl "Search Catalog" batch script # -# $Id: searchcat.pl,v 1.18 2002/05/17 14:03:04 matthew Exp $ +# $Id: searchcat.pl,v 1.31 2003/02/03 18:03:53 harris41 Exp $ # # Copyright Michigan State University Board of Trustees # @@ -26,12 +26,6 @@ # # http://www.lon-capa.org/ # -# YEAR=2001 -# 04/14/2001, 04/16/2001 Scott Harrison -# -# YEAR=2002 -# 05/11/2002 Scott Harrison -# ### # This script goes through a LON-CAPA resource @@ -44,8 +38,108 @@ use LONCAPA::Configuration; use IO::File; use HTML::TokeParser; use DBI; +use GDBM_File; +use POSIX qw(strftime mktime); my @metalist; + + +# ----------------------------------------------------- Un-Escape Special Chars + +sub unescape { + my $str=shift; + $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; + return $str; +} + +# -------------------------------------------------------- Escape Special Chars + +sub escape { + my $str=shift; + $str =~ s/(\W)/"%".unpack('H2',$1)/eg; + return $str; +} + + +# ------------------------------------------- Code to evaluate dynamic metadata + +sub dynamicmeta { + + my $url=&declutter(shift); + $url=~s/\.meta$//; + my %returnhash=(); + my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//); + my $prodir=&propath($adomain,$aauthor); + if ((tie(%evaldata,'GDBM_File', + $prodir.'/nohist_resevaldata.db',&GDBM_READER(),0640)) && + (tie(%newevaldata,'GDBM_File', + $prodir.'/nohist_new_resevaldata.db',&GDBM_WRCREAT(),0640))) { + my %sum=(); + my %cnt=(); + my %listitems=('count' => 'add', + 'course' => 'add', + 'avetries' => 'avg', + 'stdno' => 'add', + 'difficulty' => 'avg', + 'clear' => 'avg', + 'technical' => 'avg', + 'helpful' => 'avg', + 'correct' => 'avg', + 'depth' => 'avg', + 'comments' => 'app', + 'usage' => 'cnt' + ); + my $regexp=$url; + $regexp=~s/(\W)/\\$1/g; + $regexp='___'.$regexp.'___([a-z]+)$'; + foreach (keys %evaldata) { + my $key=&unescape($_); + if ($key=~/$regexp/) { + my $ctype=$1; + if (defined($cnt{$ctype})) { + $cnt{$ctype}++; + } else { + $cnt{$ctype}=1; + } + unless ($listitems{$ctype} eq 'app') { + if (defined($sum{$ctype})) { + $sum{$ctype}+=$evaldata{$_}; + } else { + $sum{$ctype}=$evaldata{$_}; + } + } else { + if (defined($sum{$ctype})) { + if ($evaldata{$_}) { + $sum{$ctype}.='
'.$evaldata{$_}; + } + } else { + $sum{$ctype}=''.$evaldata{$_}; + } + } + if ($ctype ne 'count') { + $newevaldata{$_}=$evaldata{$_}; + } + } + } + foreach (keys %cnt) { + if ($listitems{$_} eq 'avg') { + $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0; + } elsif ($listitems{$_} eq 'cnt') { + $returnhash{$_}=$cnt{$_}; + } else { + $returnhash{$_}=$sum{$_}; + } + } + if ($returnhash{'count'}) { + my $newkey=$$.'_'.time.'_searchcat___'.&escape($url).'___count'; + $newevaldata{$newkey}=$returnhash{'count'}; + } + untie(%evaldata); + untie(%newevaldata); + } + return %returnhash; +} + # ----------------- Code to enable 'find' subroutine listing of the .meta files require "find.pl"; sub wanted { @@ -56,8 +150,7 @@ sub wanted { } # --------------- Read loncapa_apache.conf and loncapa.conf and get variables -my $perlvarref=LONCAPA::Configuration::read_conf('loncapa_apache.conf', - 'loncapa.conf'); +my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf'); my %perlvar=%{$perlvarref}; undef $perlvarref; # remove since sensitive and not needed delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed @@ -65,15 +158,44 @@ delete $perlvar{'lonReceipt'}; # remove # ------------------------------------- Only run if machine is a library server exit unless $perlvar{'lonRole'} eq 'library'; +# ----------------------------- Make sure this process is running from user=www + +my $wwwid=getpwnam('www'); +if ($wwwid!=$<) { + $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}"; + $subj="LON: $perlvar{'lonHostID'} User ID mismatch"; + system("echo 'User ID mismatch. searchcat.pl must be run as user www.' |\ + mailto $emailto -s '$subj' > /dev/null"); + exit 1; +} + + +# ---------------------------------------------------------- We are in business + +open(LOG,'>'.$perlvar{'lonDaemons'}.'/logs/searchcat.log'); +print LOG '==== Searchcat Run '.localtime()."====\n\n"; my $dbh; # ------------------------------------- Make sure that database can be accessed { unless ( $dbh = DBI->connect("DBI:mysql:loncapa","www",$perlvar{'lonSqlAccess'},{ RaiseError =>0,PrintError=>0}) ) { - print "Cannot connect to database!\n"; + print LOG "Cannot connect to database!\n"; exit; } + my $make_metadata_table = "CREATE TABLE IF NOT EXISTS metadata (". + "title TEXT, author TEXT, subject TEXT, url TEXT, keywords TEXT, ". + "version TEXT, notes TEXT, abstract TEXT, mime TEXT, language TEXT, ". + "creationdate DATETIME, lastrevisiondate DATETIME, owner TEXT, ". + "copyright TEXT, FULLTEXT idx_title (title), ". + "FULLTEXT idx_author (author), FULLTEXT idx_subject (subject), ". + "FULLTEXT idx_url (url), FULLTEXT idx_keywords (keywords), ". + "FULLTEXT idx_version (version), FULLTEXT idx_notes (notes), ". + "FULLTEXT idx_abstract (abstract), FULLTEXT idx_mime (mime), ". + "FULLTEXT idx_language (language), FULLTEXT idx_owner (owner), ". + "FULLTEXT idx_copyright (copyright)) TYPE=MYISAM"; + # It would sure be nice to have some logging mechanism. + $dbh->do($make_metadata_table); } # ------------------------------------------------------------- get .meta files @@ -83,16 +205,24 @@ my @homeusers=grep grep {!/^\.\.?$/} readdir(RESOURCES); closedir RESOURCES; foreach my $user (@homeusers) { + print LOG "\n=== User: ".$user."\n\n"; +# Remove left-over db-files from potentially crashed searchcat run + my $prodir=&propath($perlvar{'lonDefDomain'},$user); + unlink($prodir.'/nohist_new_resevaldata.db'); +# Use find.pl + undef @metalist; + @metalist=(); &find("$perlvar{'lonDocRoot'}/res/$perlvar{'lonDefDomain'}/$user"); -} # -- process each file to get metadata and put into search catalog SQL database # Also, check to see if already there. # I could just delete (without searching first), but this works for now. foreach my $m (@metalist) { + print LOG "- ".$m."\n"; my $ref=&metadata($m); my $m2='/res/'.&declutter($m); $m2=~s/\.meta$//; + &dynamicmeta($m2); my $q2="select * from metadata where url like binary '$m2'"; my $sth = $dbh->prepare($q2); $sth->execute(); @@ -123,8 +253,17 @@ foreach my $m (@metalist) { # Need to, perhaps, remove stale SQL database records. # ... not yet implemented + +# -------------------------------------------------- Copy over the new db-files + system('mv '.$prodir.'/nohist_new_resevaldata.db '. + $prodir.'/nohist_resevaldata.db'); +} # --------------------------------------------------- Close database connection $dbh->disconnect; +print LOG "\n==== Searchcat completed ".localtime()." ====\n"; +close(LOG); +exit 0; +# ============================================================================= # ---------------------------------------------------------------- Get metadata # significantly altered from subroutine present in lonnet @@ -218,7 +357,30 @@ sub propath { # ---------------------------- convert 'time' format into a datetime sql format sub sqltime { my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = - localtime(@_[0]); + localtime(&unsqltime(@_[0])); $mon++; $year+=1900; return "$year-$mon-$mday $hour:$min:$sec"; } + +sub maketime { + my %th=@_; + return POSIX::mktime( + ($th{'seconds'},$th{'minutes'},$th{'hours'}, + $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,$th{'dlsav'})); +} + + +######################################### +# +# Retro-fixing of un-backward-compatible time format + +sub unsqltime { + my $timestamp=shift; + if ($timestamp=~/^(\d+)\-(\d+)\-(\d+)\s+(\d+)\:(\d+)\:(\d+)$/) { + $timestamp=&maketime( + 'year'=>$1,'month'=>$2,'day'=>$3, + 'hours'=>$4,'minutes'=>$5,'seconds'=>$6); + } + return $timestamp; +} +