--- lib/PXElator/httpd.pm	2009/07/29 19:57:07	43
+++ lib/PXElator/httpd.pm	2009/07/31 23:22:05	105
@@ -19,60 +19,222 @@
 use IO::Socket::INET;
 use Module::Refresh;
 
+our $pids;
+$pids = { httpd => $$ } unless defined $pids; # keep pids on refresh
+
+sub DESTROY {
+	warn "pids ",dump( $pids );
+	foreach ( values %$pids ) {
+		warn "kill $_";
+		kill 1,$_ || kill 9, $_;
+	}
+}
+
 our $port = 7777;
-our $debug = 1;
 
 use server;
-our $url = "http://$server::ip:$port/";
+our $debug = server::debug;
+our $url = "http://$server::ip:$port";
 
 use html;
+our $static_pids;
+
+use Time::HiRes qw/time/;
 
 sub static {
 	my ($client,$path) = @_;
 
-	$path = "tftp/$path";
+	my $full = "$server::base_dir/tftp/$path";
+
+	return if ! -f $full;
 
-	if ( ! -e $path ||  -d $path ) {
-		print $client "HTTP/1.0 404 $path not found\r\n";
-		return;
+	if ( my $pid = fork ) {
+		# parent
+		close($client);
+		print "http static child $pid\n";
+		$static_pids->{$pid} = $path;
+		return 1;
 	}
 
-	my $type = 'text/plain';
+	my $type = 'application/octet-stream';
 	$type = 'text/html' if $path =~ m{\.htm};
 	$type = 'application/javascript' if $path =~ m{\.js};
+	$type = 'text/plain' if $path =~ m{\.txt};
 
-	print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: ", -s $path,"\r\n\r\n";
-	open(my $html, $path);
-	while(<$html>) {
-		print $client $_;
+	my $size = -s $full || return;
+
+	print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
+
+	open(my $fh, $full);
+
+	my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
+	my $buff;
+	my $pos = 0;
+
+	STDERR->autoflush(1);
+	warn "static $path $type $size block: $block\n";
+
+	my $start_t = time();
+	my $last_t = $start_t;
+
+	while( my $len = read $fh, $buff, $block ) {
+		syswrite $client,$buff;
+		$client->flush;
+		$pos += $len;
+		my $t = time();
+		next unless $t - $last_t > 0.75;
+		$last_t = $t;
+		my $speed = ( $pos ) / ( $t - $start_t );
+		printf STDERR "%s %d/%d %.2f%% %.2f K/s ETA %.1fs\r"
+			, $path, $pos
+			, $size, $pos * 100 / $size
+			, $speed / 1024
+			, ( $size - $pos ) / $speed
+			;
 	}
-	close($html);
+	close($fh);
+	close($client);
 
-	return $path;
-}
+	print STDERR "\n";
 
-my $ok = "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n";
+	exit;
+}
 
 use boolean;
 
+use screen;
+use kvm;
+
+$SIG{CHLD} = 'IGNORE';
+
+sub start_stop {
+	my $daemon = shift;
+	my $pid = $pids->{$daemon};
+
+	warn "start_stop $daemon $pid\n";
+
+	if ( $pid =~ m{^\d+$} ) {
+		my $pstree = `pstree -p $pid`;
+		my @pids = $pstree =~ m{\((\d+)\)}g;
+		warn "pstree $pstree pids ",dump( @pids );
+		kill 1, $_ foreach reverse @pids;
+		$pids->{$daemon} = 'stopped';
+		return qq|$daemon pid $pid stopped|;
+	} else {
+		if ( $pid = fork ) {
+			# parent
+			$pids->{$daemon} = $pid;
+			warn "forked $daemon $pid\n";
+			return qq|$daemon pid $pid started|;
+		} elsif ( defined $pid ) {
+			# child
+			my $invoke = 'start';
+			$invoke = $1 if $daemon =~ s{/(.+)}{};
+			my $eval = $daemon . '::' . $invoke . '(' . ( @_ ? dump(@_) : '' ) . ')';
+			warn "eval $eval";
+			eval $eval;
+			warn "can't start $daemon: $@" if $@;
+			exit;
+		} else {
+			die "fork error $!";
+		}
+	}
+}
+
+my $ok =       qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n|;
+my $redirect = qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $url\r\n\r\n|;
+
 sub get_request {
 	my ( $client, $path, $param ) = @_;
 
-	warn "get_request $client $path $param";
+	warn "get_request $path ", $param ? dump( $param ) : '', "\n";
 
 	if ( my $found = static( $client,$path ) ) {
 		warn "static $found" if $debug;
 	} elsif ( $path eq '/' ) {
-		print $client $ok,
-		html::table( 2,
-			'pid',   $$,
-			'debug', qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
+
+		my $screen = $pids->{screen} ? qq|stop <tt>$pids->{screen}</tt>|	: 'start';
+		my $kvm    = $pids->{kvm}    ? qq|stop <tt>$pids->{kvm}</tt>|		:
+					 $pids->{screen} ? qq|start|							: qq|start screen first|;
+
+		my @rows = (
+			'ip',		html::tt( $server::ip ),
+			'netmask',	html::tt( $server::netmask ),
+
+			'debug',	qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
 		);
 
+		my $debug_proc = '';
+
+		warn 'pids: ', dump( $pids ) if $debug;
+		foreach my $name ( sort keys %$pids ) {
+			my $pid = $pids->{$name} || next;
+
+			my $html = qq|<a href=/start_stop/$name>$pid</a>|;
+
+			my $proc = "/proc/$pid/status";
+
+			if ( -e $proc ) {
+				if ( $debug ) {
+					$html .= qq| <a name=$pid href=#proc-$pid>?</a>|;
+
+					$debug_proc
+						.= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
+						.  read_file($proc)
+						.  qq|</pre>|
+						;
+				}
+
+				if ( $name->can('start_fork') ) {
+					$html .= qq| <a href=/start_stop/kvm/$_>$_</a>| foreach $name->start_fork;
+				}
+
+				if ( $name->can('actions') ) {
+					$html .= qq| <a href=/action/kvm/$_>$_</a>| foreach $name->actions;
+				}
+			}
+
+			push @rows, ( $name => $html );
+		}
+
+		my $below_table = '';
+
+		warn 'static_pids: ', dump( $static_pids ) if $debug;
+		foreach my $pid ( keys %$static_pids ) {
+			my $path = $static_pids->{$pid};
+			if ( -d "/proc/$pid" ) {
+				push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
+			} elsif ( $param->{clean_completed_downloads} ) {
+				delete $static_pids->{$pid}
+			} else {
+				push @rows, ( $path => "$pid competed" );
+				$below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
+			}
+		}
+
+		print $client $ok
+			, html::table( 2, @rows )
+			, $below_table
+			, html::tabs( log::mac_changes )
+			, $debug_proc
+			;
+
 	} elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 		eval 'our $' . $1 . ' = ' . $2;
 		warn $@ if $@;
-		print $client qq|HTTP/1.1 302 Found\r\nLocation: $url\r\nContent-type: text/html\r\n\r\n<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
+		print $client $redirect, qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
+		server::debug( $debug ) if $1 eq 'debug';
+	} elsif ( $path =~ m{^/start_stop/((?:screen|kvm).*)} ) { # XXX we don't want to stop all classes
+		print $client $redirect, start_stop($1);
+	} elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
+		$1->$2();
+		print $client $redirect;
+	} elsif ( $path =~ m{^/kill/static/(\d+)} ) {
+		print $client $redirect;
+		kill 1, $1 || kill 9, $2 && warn "killed $1";
+ 	} elsif ( $path eq '/exit' ) {
+#		DESTROY;
+		exit 0;
 	} elsif ( $path =~ m{/boot} ) {
 		print $client qq{$ok
 #!gpxe
@@ -87,6 +249,9 @@
 	}
 
 }
+
+use browser;
+
 sub start {
 
 	my $server = IO::Socket::INET->new(
@@ -98,7 +263,9 @@
 
 	print "url $url\n";
 
-	system "/mnt/llin/rest/cvs/uzbl/uzbl -u $url &";
+	start_stop 'browser', $url;
+	start_stop 'screen';
+	start_stop 'kvm';
 
 	while (my $client = $server->accept()) {
 		$client->autoflush(1);
@@ -118,7 +285,6 @@
 				}
 				warn "param: ",dump( $param ) if $debug;
 			}
-			warn "path $path param: ",dump( $param );
 			get_request $client, $path, $param;
 		} else {
 			print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
@@ -128,7 +294,8 @@
 		print $client qq{
 		<div style="font-size: 80%; color: #888">
 		<a href="">reload</a>
-		<a href="/">index</a>
+		<a href=/>index</a>
+		<a href=/exit>exit</a>
 		</div>
 		} if $client->connected;
 
@@ -137,4 +304,6 @@
 	die "server died";
 }
 
+warn "loaded";
+
 1;