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112 lines
2.4 KiB
112 lines
2.4 KiB
package Lemonldap::NG::Common::Conf::File;
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use strict;
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use Lemonldap::NG::Common::Conf::Constants; #inherits
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use Lemonldap::NG::Common::Conf::Serializer;
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our $VERSION = 0.23;
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sub prereq {
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my $self = shift;
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unless ( $self->{dirName} ) {
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$Lemonldap::NG::Common::Conf::msg =
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'"dirName" is required in "File" configuration type !';
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return 0;
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}
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unless ( -d $self->{dirName} ) {
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$Lemonldap::NG::Common::Conf::msg =
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"Directory \"$self->{dirName}\" does not exist !";
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return 0;
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}
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1;
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}
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sub available {
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my $self = shift;
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opendir D, $self->{dirName};
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my @conf = readdir(D);
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close D;
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@conf = sort { $a <=> $b } map { /lmConf-(\d+)/ ? $1 : () } @conf;
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return @conf;
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}
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sub lastCfg {
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my $self = shift;
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my @avail = $self->available;
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return $avail[$#avail];
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}
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sub lock {
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my $self = shift;
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if ( $self->isLocked ) {
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sleep 2;
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return 0 if ( $self->isLocked );
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}
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unless ( open F, ">" . $self->{dirName} . "/lmConf.lock" ) {
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$Lemonldap::NG::Common::Conf::msg =
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"Unable to lock (" . $self->{dirName} . "/lmConf.lock)\n";
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return 0;
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}
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print F $$;
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close F;
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return 1;
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}
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sub isLocked {
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my $self = shift;
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-e $self->{dirName} . "/lmConf.lock";
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}
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sub unlock {
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my $self = shift;
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unlink $self->{dirName} . "/lmConf.lock";
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}
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sub store {
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my ( $self, $fields ) = @_;
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$fields = $self->serialize($fields);
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my $mask = umask;
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umask( oct('0027') );
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unless ( open FILE,
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'>' . $self->{dirName} . "/lmConf-" . $fields->{cfgNum} )
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{
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$Lemonldap::NG::Common::Conf::msg = "Open file failed: $!";
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$self->unlock;
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return UNKNOWN_ERROR;
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}
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while ( my ( $k, $v ) = each(%$fields) ) {
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print FILE "$k\n\t$v\n\n";
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}
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close FILE;
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umask($mask);
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$self->unlock;
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return $fields->{cfgNum};
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}
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sub load {
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my ( $self, $cfgNum, $fields ) = @_;
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my $f;
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local $/ = "";
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open FILE, $self->{dirName} . "/lmConf-$cfgNum";
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while (<FILE>) {
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my ( $k, $v ) = split /\n\s+/;
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chomp $k;
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$v =~ s/\n*$//;
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if ($fields) {
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$f->{$k} = $v if ( grep { $_ eq $k } @$fields );
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}
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else {
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$f->{$k} = $v;
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}
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}
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close FILE;
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return $self->unserialize($f);
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}
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sub delete {
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my ( $self, $cfgNum ) = @_;
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unlink( $self->{dirName} . "/lmConf-$cfgNum" );
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}
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1;
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__END__
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