+#!/usr/bin/perl -w
+#
+# freeside-selfservice-server
+
+# alas, much false laziness with freeside-queued and fs_signup_server. at
+# least it is slated to replace fs_{signup,passwd,mailadmin}_server
+# should probably generalize the version in here, or better yet use
+# Proc::Daemon or somesuch
+
+use strict;
+use vars qw( $kids $max_kids $shutdown $log_file );
+use vars qw($ssh_pid);
+use Fcntl qw(:flock);
+use POSIX qw(setsid);
+use IO::Handle;
+use Storable qw(nstore_fd fd_retrieve);
+use Net::SSH qw(sshopen2);
+use FS::UID qw(adminsuidsetup);
+
+#use Tie::RefHash;
+#use FS::Conf;
+#use FS::Record qw( qsearch qsearchs );
+#use FS::cust_main_county;
+#use FS::cust_main;
+#use FS::Msgcat qw(gettext);
+
+$shutdown = 0;
+$max_kids = '10'; #?
+$kids = 0;
+
+my $user = shift or die &usage;
+my $machine = shift or die &usage;
+my $pid_file = "/var/run/freeside-selfservice-server.$user.pid";
+#my $pid_file = "/var/run/freeside-selfservice-server.$user.pid"; $FS::UID::datasrc not posible, but should include machine name at least, hmm
+
+&init($user);
+
+my $clientd = "/usr/local/sbin/freeside-selfservice-clientd"; #better name?
+
+my %dispatch = (
+ 'signup' => \&signup,
+ #'signup_init' => 'signup_init',
+ 'passwd' => \&passwd,
+
+);
+
+my $warnkids=0;
+while (1) {
+ my($reader, $writer) = (new IO::Handle, new IO::Handle);
+ warn "connecting to $machine";
+ $ssh_pid = sshopen2($machine,$reader,$writer,$clientd);
+
+ warn "entering main loop";
+ while (1) {
+
+ warn "waiting for packet from client";
+ my $packet = eval {
+ local $SIG{__DIE__};
+ local $SIG{ALRM} = sub { die "alarm\n" }; #NB: \n required
+ alarm 5;
+ my $p = fd_retrieve($reader);
+ alarm 0;
+ $p;
+ };
+ if ($@) {
+ die $@ unless $@ eq "alarm\n";
+ #timeout
+ next unless $shutdown;
+ &shutdown;
+ }
+ warn "packet received";
+
+ #prevent runaway forking
+ my $warnkids = 0;
+ while ( $kids >= $max_kids ) {
+ warn "WARNING: maximum $kids children reached" unless $warnkids++;
+ sleep 1;
+ }
+
+ warn "forking child";
+ defined( my $pid = fork ) or die "can't fork: $!";
+ if ( $pid ) {
+ warn "child $pid spawned";
+ $kids++;
+ } else { #kid time
+
+ #get new db handle
+ $FS::UID::dbh->{InactiveDestroy} = 1;
+ forksuidsetup($user);
+
+ my $sub = $dispatch{$packet->{_packet}};
+ my $rv;
+ if ( $sub ) {
+ warn "calling $sub handler";
+ $rv = &{$sub}($packet);
+ } else {
+ warn my $error = "WARNING: unknown packet type ". $packet->{_packet};
+ $rv = { _error => $error };
+ }
+ $rv->{_token} = $packet->{_token}; #identifier
+
+ warn "sending response";
+ flock($writer, LOCK_EX); #acquire write lock
+ nstore_fd($rv, $writer) or die "can't send response: $!";
+ $writer->flush;
+ flock($writer, LOCK_UN); #release write lock
+
+ warn "child exiting";
+ exit; #end-of-kid
+ }
+
+ }
+
+}
+
+###
+# utility subroutines
+###
+
+sub init {
+ my $user = shift;
+
+ chdir "/" or die "Can't chdir to /: $!";
+ open STDIN, '/dev/null' or die "Can't read /dev/null: $!";
+ defined(my $pid = fork) or die "Can't fork: $!";
+ if ( $pid ) {
+ print "freeside-selfservice-server to $machine started with pid $pid\n"; #logging to $log_file
+ exit unless $pid_file;
+ my $pidfh = new IO::File ">$pid_file" or exit;
+ print $pidfh "$pid\n";
+ exit;
+ }
+
+ sub REAPER { my $pid = wait; $SIG{CHLD} = \&REAPER; $kids--; }
+ $SIG{CHLD} = \&REAPER;
+
+ $shutdown = 0;
+ $SIG{HUP} = sub { warn "SIGHUP received; shutting down\n"; $shutdown++; };
+ $SIG{INT} = sub { warn "SIGINT received; shutting down\n"; $shutdown++; };
+ $SIG{TERM} = sub { warn "SIGTERM received; shutting down\n"; $shutdown++; };
+ $SIG{QUIT} = sub { warn "SIGQUIT received; shutting down\n"; $shutdown++; };
+ $SIG{PIPE} = sub { warn "SIGPIPE received; shutting down\n"; $shutdown++; };
+
+ $> = $FS::UID::freeside_uid unless $>;
+ $< = $>;
+ $ENV{HOME} = (getpwuid($>))[7]; #for ssh
+ adminsuidsetup $user;
+
+ #$log_file = "/usr/local/etc/freeside/selfservice.". $FS::UID::datasrc; #MACHINE NAME
+ $log_file = "/usr/local/etc/freeside/selfservice.$machine.log";
+
+ open STDOUT, '>/dev/null'
+ or die "Can't write to /dev/null: $!";
+ setsid or die "Can't start a new session: $!";
+ open STDERR, '>&STDOUT' or die "Can't dup stdout: $!";
+
+ $SIG{__DIE__} = \&_die;
+ $SIG{__WARN__} = \&_logmsg;
+
+ warn "freeside-selfservice-server starting\n";
+
+}
+
+sub shutdown {
+ my $wait = 12; #wait up to 1 minute
+ while ( $kids && $wait-- ) {
+ warn "waiting for $kids children to terminate";
+ sleep 5;
+ }
+ warn "abandoning $kids children" if $kids;
+ kill 'TERM', $ssh_pid if $ssh_pid;
+ die "exiting";
+}
+
+sub _die {
+ my $msg = shift;
+ unlink $pid_file if -e $pid_file;
+ _logmsg($msg);
+}
+
+sub _logmsg {
+ chomp( my $msg = shift );
+ my $log = new IO::File ">>$log_file";
+ flock($log, LOCK_EX);
+ seek($log, 0, 2);
+ print $log "[server] [". time2str("%a %b %e %T %Y",time). "] [$$] $msg\n";
+ flock($log, LOCK_UN);
+ close $log;
+}
+
+sub usage {
+ die "Usage:\n\n fs_signup_server user machine\n";
+}
+
+###
+# handlers... should go in their own files eventually...
+###
+