--- trunk/Estraier.pm	2006/01/06 20:45:48	56
+++ trunk/Estraier.pm	2006/01/07 23:48:16	65
@@ -4,7 +4,7 @@
 use strict;
 use warnings;
 
-our $VERSION = '0.00';
+our $VERSION = '0.02';
 
 =head1 NAME
 
@@ -205,7 +205,8 @@
 
 sub attr_names {
 	my $self = shift;
-	croak "attr_names return array, not scalar" if (! wantarray);
+	return unless ($self->{attrs});
+	#croak "attr_names return array, not scalar" if (! wantarray);
 	return sort keys %{ $self->{attrs} };
 }
 
@@ -221,8 +222,8 @@
 sub attr {
 	my $self = shift;
 	my $name = shift;
-
-	return $self->{'attrs'}->{ $name };
+	return unless (defined($name) && $self->{attrs});
+	return $self->{attrs}->{ $name };
 }
 
 
@@ -236,8 +237,8 @@
 
 sub texts {
 	my $self = shift;
-	confess "texts return array, not scalar" if (! wantarray);
-	return @{ $self->{dtexts} };
+	#confess "texts return array, not scalar" if (! wantarray);
+	return @{ $self->{dtexts} } if ($self->{dtexts});
 }
 
 
@@ -251,7 +252,7 @@
 
 sub cat_texts {
 	my $self = shift;
-	return join(' ',@{ $self->{dtexts} });
+	return join(' ',@{ $self->{dtexts} }) if ($self->{dtexts});
 }
 
 
@@ -460,7 +461,7 @@
 sub attrs {
 	my $self = shift;
 	#croak "attrs return array, not scalar" if (! wantarray);
-	return @{ $self->{attrs} };
+	return @{ $self->{attrs} } if ($self->{attrs});
 }
 
 
@@ -524,9 +525,7 @@
 	my $self = {@_};
 	bless($self, $class);
 
-	foreach my $f (qw/uri attrs snippet keywords/) {
-		croak "missing $f for ResultDocument" unless defined($self->{$f});
-	}
+	croak "missing uri for ResultDocument" unless defined($self->{uri});
 
 	$self ? return $self : return undef;
 }
@@ -700,6 +699,10 @@
 
   my $node = new Search::HyperEstraier::Node;
 
+or optionally with C<url> as parametar
+
+  my $node = new Search::HyperEstraier::Node( 'http://localhost:1978/node/test' );
+
 =cut
 
 sub new {
@@ -717,9 +720,13 @@
 	};
 	bless($self, $class);
 
-	if (@_) {
-		$self->{debug} = shift;
-		warn "## Node debug on\n";
+	if ($#_ == 0) {
+		$self->{url} = shift;
+	} else {
+		my $args = {@_};
+
+		$self->{debug} = $args->{debug};
+		warn "## Node debug on\n" if ($self->{debug});
 	}
 
 	$self ? return $self : return undef;
@@ -1176,7 +1183,7 @@
 
 	my $rv = $self->shuttle_url( $self->{url} . '/search',
 		'application/x-www-form-urlencoded',
-		$self->cond_to_query( $cond ),
+		$self->cond_to_query( $cond, $depth ),
 		\$resbody,
 	);
 	return if ($rv != 200);
@@ -1270,7 +1277,7 @@
 
 Return URI encoded string generated from Search::Estraier::Condition
 
-  my $args = $node->cond_to_query( $cond );
+  my $args = $node->cond_to_query( $cond, $depth );
 
 =cut
 
@@ -1279,6 +1286,7 @@
 
 	my $cond = shift || return;
 	croak "condition must be Search::Estraier::Condition, not '$cond->isa'" unless ($cond->isa('Search::Estraier::Condition'));
+	my $depth = shift;
 
 	my @args;
 
@@ -1288,7 +1296,7 @@
 
 	if (my @attrs = $cond->attrs) {
 		for my $i ( 0 .. $#attrs ) {
-			push @args,'attr' . ($i+1) . '=' . uri_escape( $attrs[$i] );
+			push @args,'attr' . ($i+1) . '=' . uri_escape( $attrs[$i] ) if ($attrs[$i]);
 		}
 	}
 
@@ -1306,7 +1314,7 @@
 		push @args, 'options=' . $options;
 	}
 
-	push @args, 'depth=' . $self->{depth} if ($self->{depth});
+	push @args, 'depth=' . $depth if ($depth);
 	push @args, 'wwidth=' . $self->{wwidth};
 	push @args, 'hwidth=' . $self->{hwidth};
 	push @args, 'awidth=' . $self->{awidth};
@@ -1327,6 +1335,8 @@
 
 =cut
 
+use LWP::UserAgent;
+
 sub shuttle_url {
 	my $self = shift;
 
@@ -1345,81 +1355,37 @@
 		return -1;
 	}
 
-	my ($host,$port,$query) = ($url->host, $url->port, $url->path);
-
-	if ($self->{pxhost}) {
-		($host,$port) = ($self->{pxhost}, $self->{pxport});
-		$query = "http://$host:$port/$query";
-	}
-
-	$query .= '?' . $url->query if ($url->query && ! $reqbody);
-
-	my $headers;
+	my $ua = LWP::UserAgent->new;
+	$ua->agent( "Search-Estraier/$Search::Estraier::VERSION" );
 
+	my $req;
 	if ($reqbody) {
-		$headers .= "POST $query HTTP/1.0\r\n";
+		$req = HTTP::Request->new(POST => $url);
 	} else {
-		$headers .= "GET $query HTTP/1.0\r\n";
-	}
-
-	$headers .= "Host: " . $url->host . ":" . $url->port . "\r\n";
-	$headers .= "Connection: close\r\n";
-	$headers .= "User-Agent: Search-Estraier/$Search::Estraier::VERSION\r\n";
-	$headers .= "Content-Type: $content_type\r\n";
-	$headers .= "Authorization: Basic $self->{auth}\r\n";
-	my $len = 0;
-	{
-		use bytes;
-		$len = length($reqbody) if ($reqbody);
-	}
-	$headers .= "Content-Length: $len\r\n";
-	$headers .= "\r\n";
-
-	my $sock = IO::Socket::INET->new(
-		PeerAddr	=> $host,
-		PeerPort	=> $port,
-		Proto		=> 'tcp',
-		Timeout		=> $self->{timeout} || 90,
-	);
-
-	if (! $sock) {
-		carp "can't open socket to $host:$port";
-		return -1;
+		$req = HTTP::Request->new(GET => $url);
 	}
 
-	warn $headers if ($self->{debug});
+	$req->headers->header( 'Host' => $url->host . ":" . $url->port );
+	$req->headers->header( 'Connection', 'close' );
+	$req->headers->header( 'Authorization', 'Basic ' . $self->{auth} );
+	$req->content_type( $content_type );
 
-	print $sock $headers or
-		carp "can't send headers to network:\n$headers\n" and return -1;
+	warn $req->headers->as_string,"\n" if ($self->{debug});
 
 	if ($reqbody) {
 		warn "$reqbody\n" if ($self->{debug});
-		print $sock $reqbody or
-			carp "can't send request body to network:\n$$reqbody\n" and return -1;
+		$req->content( $reqbody );
 	}
 
-	my $line = <$sock>;
-	chomp($line);
-	my ($schema, $res_status, undef) = split(/  */, $line, 3);
-	return if ($schema !~ /^HTTP/ || ! $res_status);
-
-	$self->{status} = $res_status;
-	warn "## response status: $res_status\n" if ($self->{debug});
-
-	# skip rest of headers
-	$line = <$sock>;
-	while ($line) {
-		$line = <$sock>;
-		$line =~ s/[\r\n]+$//;
-		warn "## ", $line || 'NULL', " ##\n" if ($self->{debug});
-	};
+	my $res = $ua->request($req) || croak "can't make request to $url: $!";
 
-	# read body
-	$len = 0;
-	do {
-		$len = read($sock, my $buf, 8192);
-		$$resbody .= $buf if ($resbody);
-	} while ($len);
+	warn "## response status: ",$res->status_line,"\n" if ($self->{debug});
+
+	return -1 if (! $res->is_success);
+
+	($self->{status}, $self->{status_message}) = split(/\s+/, $res->status_line, 2);
+
+	$$resbody .= $res->content;
 
 	warn "## response body:\n$$resbody\n" if ($resbody && $self->{debug});
 
@@ -1497,6 +1463,34 @@
 }
 
 
+=head2 set_link
+
+Manage node links
+
+  $node->set_link('http://localhost:1978/node/another', 'another node label', $credit);
+
+If C<$credit> is negative, link is removed.
+
+=cut
+
+sub set_link {
+	my $self = shift;
+	my ($url, $label, $credit) = @_;
+
+	return unless ($self->{url});
+	croak "mode credit be number, not '$credit'" unless ($credit =~ m/^\d+$/);
+
+	my $reqbody = 'url=' . uri_escape($url) . '&label=' . uri_escape($label);
+	$reqbody .= '&credit=' . $credit if ($credit > 0);
+
+	$self->shuttle_url( $self->{url} . '/_set_link',
+		'text/plain',
+		$reqbody,
+		undef
+	) == 200;
+}
+
+
 =head1 PRIVATE METHODS
 
 You could call those directly, but you don't have to. I hope.
@@ -1524,7 +1518,8 @@
 
 	return if ($rv != 200 || !$resbody);
 
-	chomp($resbody);
+	# it seems that response can have multiple line endings
+	$resbody =~ s/[\r\n]+$//;
 
 	( $self->{name}, $self->{label}, $self->{dnum}, $self->{wnum}, $self->{size} ) =
 		split(/\t/, $resbody, 5);