--- lib/PXElator/httpd.pm	2009/07/29 22:04:58	45
+++ lib/PXElator/httpd.pm	2009/08/06 18:10:31	162
@@ -17,78 +17,274 @@
 use File::Slurp;
 #use JSON;
 use IO::Socket::INET;
-use Module::Refresh;
+use Regexp::Common qw/net/;
+
+sub menu {qq{
+
+<div style="font-size: 80%; color: #888">
+<a href=/>home</a>
+<a href=/server>server</a>
+<a href=/client>client</a>
+</div>
+
+}}
+
+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 progress_bar;
+use config;
+use client;
+use log;
 
 sub static {
 	my ($client,$path) = @_;
 
-	$path = "tftp/$path";
+	my $full = "$server::base_dir/tftp/$path";
 
-	if ( ! -e $path ||  -d $path ) {
-		print $client "HTTP/1.0 404 $path not found\r\n";
-		return;
+	return if ! -f $full;
+
+	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};
+
+	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";
 
-	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 $_;
+	open(my $fh, $full);
+
+	my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
+	my $buff;
+	my $pos = 0;
+
+	warn "static $path $type $size block: $block\n";
+
+	progress_bar::start;
+
+	while( my $len = read $fh, $buff, $block ) {
+		print $client $buff;
+		$client->flush;
+		$pos += $len;
+		progress_bar::tick( $path, $pos, $size );
 	}
-	close($html);
+	close($fh);
+	close($client);
 
-	return $path;
-}
+	print STDERR "\n";
+
+	warn "exit static child";
 
-my $ok = "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n";
+	exit(0);
+}
 
 use boolean;
 
+use kvm;
+
+$SIG{CHLD} = 'IGNORE';
+
+sub start_stop {
+	my $daemon = shift;
+	my $pid = $pids->{$daemon} || 'not started';
+
+	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{/(.+)}{};
+			if ( $daemon =~ m{dhcpd|tftpd|dnsd} ) {
+				my $exec = "perl -I$server::base_dir/lib -I$server::base_dir/lib/PXElator -M$daemon -e ${daemon}::${invoke}";
+				warn "exec $exec";
+				exec "xterm -T $daemon -n $daemon -e $exec";
+			} else {
+				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| . menu();
+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";
+	server->refresh;
+
+	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 @rows = (
+			'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{^/server} ) {
+		print $client $ok
+			, html::table( 2, map { ( $_, eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir' ) )
+			;
+	} elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
+		my $ip = $1 || $client->peerhost;
+		if ( $ip ne $server::ip ) {
+			my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
+			my $deploy   = client::conf( $ip, 'deploy'   => $param->{deploy}   );
+			print $client $ok
+				, qq|<form method=get>|
+				, html::table( 2,
+					'ip' => $ip,
+					'hostname' => qq|<input type=text name=hostname value=$hostname>|,
+					'deploy' => html::select( 'deploy', $deploy, config::available ),
+				)
+				, qq|<input type=submit value=change></form>|
+				, qq|<h2>PXElinux $deploy</h2><pre>|
+				, config::for_ip( $ip )
+				, qq|</pre>|
+				;
+		} else {
+			print $client $ok
+				, qq|<h2>Clients on $server::ip</h2>|
+				, qq|<ul>|
+				, join("\n",
+					map {
+						my $ip = $_;
+						$ip =~ s{^.+/ip/}{};
+						qq|<li><a href=/client/$ip>$ip</a></li>|
+					}
+					glob("$server::conf/ip/*") 
+				)
+				, qq|</ul>|
+				;
+		}
 	} 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>|;
-	} elsif ( $path =~ m{/boot} ) {
-		print $client qq{$ok
-#!gpxe
-imgfree
-login
-chain http://$server::ip:$httpd::port/
-
-			};
+		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/(\S+)} ) {
+		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";
 	} else {
 		print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 		warn "404 $path";
 	}
 
 }
+
+use browser;
+use network;
+
 sub start {
 
+	warn 'tap ', network::tap();
+
 	my $server = IO::Socket::INET->new(
 			Proto     => 'tcp',
 			LocalPort => $httpd::port,
@@ -98,16 +294,18 @@
 
 	print "url $url\n";
 
-	system "/mnt/llin/rest/cvs/uzbl/uzbl -u $url &";
+	start_stop 'browser', $url;
+	start_stop 'dhcpd';
+	start_stop 'tftpd';
+	start_stop 'dnsd';
+	start_stop 'kvm';
 
-	while (my $client = $server->accept()) {
-		$client->autoflush(1);
+	while (1) {
+		my $client = $server->accept() || next; # ALARM trickle us
 		my $request = <$client>;
 
 		warn "request $request\n" if $debug;
 
-		Module::Refresh->refresh;
-
 		if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 			my $path = $1;
 			my $param;
@@ -118,19 +316,13 @@
 				}
 				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";
 			warn "500 $request";
 		}
 
-		print $client qq{
-		<div style="font-size: 80%; color: #888">
-		<a href="">reload</a>
-		<a href="/">index</a>
-		</div>
-		} if $client->connected;
+		print $client menu() if $client->connected;
 
 	}