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|
#!/usr/bin/perl -Tw
#
# fs_session_server
#
use strict;
use vars qw( $opt $Debug );
use IO::Handle;
use Net::SSH qw(sshopen2);
use FS::UID qw(adminsuidsetup dbh);
use FS::Record qw( qsearchs ); #qsearch );
#use FS::cust_main_county;
#use FS::cust_main;
use FS::session;
use FS::port;
use FS::svc_acct;
#require "configfile";
$Debug = 1;
my $user = shift or die &usage;
&adminsuidsetup( $user );
my $machine = shift or die &usage;
my $fs_sessiond = "/usr/local/sbin/fs_sessiond";
my $me = "[fs_session_server]";
while (1) {
my($reader, $writer) = (new IO::Handle, new IO::Handle);
$writer->autoflush(1);
warn "$me Connecting to $machine\n" if $Debug;
sshopen2($machine,$reader,$writer,$fs_sessiond);
warn "$me Entering main loop\n" if $Debug;
while (1) {
warn "$me Reading (waiting for) data\n" if $Debug;
my $command = scalar(<$reader>);
chomp $command;
#DoS protection here too, to protect against a compromised client? *sigh*
my %hash;
while ( ( my $key = scalar(<$reader>) ) ne "END\n" ) {
chomp $key;
chomp( $hash{$key} = scalar(<$reader>) );
}
if ( $command eq 'login' ) {
my $error = &login(\%hash);
print $writer "$error\n";
} elsif ( $command eq 'logout' ) {
my $error = &logout(\%hash);
print $writer "$error\n";
} elsif ( $command eq 'portnum' ) {
my $port;
if ( exists $hash{'ip'} ) {
$hash{'ip'} =~ /^([\d\.]+)$/ or $1='nomatch';
$port = qsearchs('port', { 'ip' => $1 } );
} else {
$hash{'nasnum'} =~ /^(\d+)$/ and my $nasnum = $1;
$hash{'nasport'} =~ /^(\d+)$/ and my $nasport = $1;
$port = qsearchs('port', { 'nasnum'=>$nasnum, 'nasport'=>$nasport } );
}
print $writer ( $port ? $port->portnum : '' ), "\n";
} else {
warn "$me WARNING: unrecognized command: $command";
}
}
#won't ever reach without code above to throw out of loop, but...
close $writer;
close $reader;
warn "connection to $machine lost!\n";
sleep 5;
warn "reconnecting...\n";
}
sub login {
my $href = shift;
$href->{'username'} =~ /^([a-z0-9_\-\.]+)$/ or return "Illegal username";
my $username = $1;
my $svc_acct = qsearchs('svc_acct', { 'username' => $username } )
or return "Unknown user";
return "Incorrect password"
if exists($href->{'password'})
&& $href->{'password'} ne $svc_acct->_password;
return "Time limit exceeded" unless $svc_acct->seconds;
my $session = new FS::session {
'portnum' => $href->{'portnum'},
'svcnum' => $svc_acct->svcnum,
'login' => $href->{'login'},
};
$session->insert;
}
sub logout {
my $href = shift;
$href->{'username'} =~ /^([a-z0-9_\-\.]+)$/ or return "Illegal username";
my $username = $1;
local $FS::UID::AutoCommit = 0;
my $dbh = dbh;
my $svc_acct =
qsearchs('svc_acct', { 'username' => $username }, '', 'FOR UPDATE' )
or return "Unknown user";
return "Incorrect password"
if exists($href->{'password'})
&& $href->{'password'} ne $svc_acct->_password;
my $session = qsearchs( 'session', {
'portnum' => $href->{'portnum'},
'svcnum' => $svc_acct->svcnum,
'logout' => '',
},
'', 'FOR UPDATE'
);
unless ( $session ) {
$dbh->rollback;
return "No currently open sessions found for that user/port!";
}
my $nsession = new FS::session ( { $session->hash } );
warn "$nsession replacing $session";
my $error = $nsession->replace($session);
if ( $error ) {
$dbh->rollback;
return "can't logout: $error";
}
my $time = $nsession->logout - $nsession->login;
my $new_svc_acct = new FS::svc_acct ( { $svc_acct->hash } );
my $seconds = $new_svc_acct->seconds;
$seconds -= $time;
$seconds = 0 if $seconds < 0;
$new_svc_acct->seconds( $seconds );
$error = $new_svc_acct->replace( $svc_acct );
warn "can't debit time: $error\n"; #don't want to rollback, though
$dbh->commit or die $dbh->errstr;
''
}
sub usage {
die "Usage:\n\n fs_session_server user machine\n";
}
|
