version 1.14, 2003/10/28 10:47:44
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version 1.28, 2004/03/02 14:57:40
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Line 46 my %hostshash;
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Line 46 my %hostshash;
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my %perlvar; |
my %perlvar; |
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# |
# |
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# Set debugging level |
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# |
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sub SetDebug { |
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$DebugLevel = shift; |
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} |
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# |
# The config read is done in this way to support the read of |
# The config read is done in this way to support the read of |
# the non-default configuration file in the |
# the non-default configuration file in the |
# event we are being used outside of loncapa. |
# event we are being used outside of loncapa. |
Line 60 sub ReadConfig {
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Line 67 sub ReadConfig {
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my $perlvarref = read_conf('loncapa.conf'); |
my $perlvarref = read_conf('loncapa.conf'); |
%perlvar = %{$perlvarref}; |
%perlvar = %{$perlvarref}; |
my $hoststab = read_hosts( |
my $hoststab = read_hosts( |
"$perlvar{'lonTabDir'}/hosts.tab") || |
"$perlvar{lonTabDir}/hosts.tab") || |
die "Can't read host table!!"; |
die "Can't read host table!!"; |
%hostshash = %{$hoststab}; |
%hostshash = %{$hoststab}; |
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$ConfigRead = 1; |
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close(CONFIG); |
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} |
} |
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# |
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# Read a foreign configuration. |
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# This sub is intended for the cases where the package |
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# will be read from outside the LonCAPA environment, in that case |
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# the client will need to explicitly provide: |
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# - A file in hosts.tab format. |
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# - Some idea of the 'lonCAPA' name of the local host (for building |
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# the encryption key). |
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# |
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# Parameters: |
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# MyHost - Name of this host as far as LonCAPA is concerned. |
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# Filename - Name of a hosts.tab formatted file that will be used |
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# to build up the hosts table. |
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# |
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sub ReadForeignConfig { |
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my $MyHost = shift; |
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my $Filename = shift; |
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&Debug(4, "ReadForeignConfig $MyHost $Filename\n"); |
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$perlvar{lonHostID} = $MyHost; # Rmember my host. |
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my $hosttab = read_hosts($Filename) || |
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die "Can't read hosts table!!"; |
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%hostshash = %{$hosttab}; |
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if($DebugLevel > 3) { |
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foreach my $host (keys %hostshash) { |
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print "host $host => $hostshash{$host}\n"; |
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} |
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} |
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$ConfigRead = 1; |
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} |
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sub Debug { |
sub Debug { |
my $level = shift; |
my $level = shift; |
Line 89 sub Dump {
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Line 127 sub Dump {
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my $self = shift; |
my $self = shift; |
my $key; |
my $key; |
my $value; |
my $value; |
print "Dumping LondConnectionObject:\n"; |
print STDERR "Dumping LondConnectionObject:\n"; |
while(($key, $value) = each %$self) { |
while(($key, $value) = each %$self) { |
print STDERR "$key -> $value\n"; |
print STDERR "$key -> $value\n"; |
} |
} |
print "-------------------------------\n"; |
print STDERR "-------------------------------\n"; |
} |
} |
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=pod |
=pod |
Line 153 sub new {
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Line 191 sub new {
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# LoncapaHim fields of the object respectively. |
# LoncapaHim fields of the object respectively. |
# |
# |
if (!exists $hostshash{$Hostname}) { |
if (!exists $hostshash{$Hostname}) { |
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&Debug(8, "No Such host $Hostname"); |
return undef; # No such host!!! |
return undef; # No such host!!! |
} |
} |
my @ConfigLine = @{$hostshash{$Hostname}}; |
my @ConfigLine = @{$hostshash{$Hostname}}; |
Line 160 sub new {
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Line 199 sub new {
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Debug(5, "Connecting to ".$DnsName); |
Debug(5, "Connecting to ".$DnsName); |
# Now create the object... |
# Now create the object... |
my $self = { Host => $DnsName, |
my $self = { Host => $DnsName, |
LoncapaHim => $Hostname, |
LoncapaHim => $Hostname, |
Port => $Port, |
Port => $Port, |
State => "Initialized", |
State => "Initialized", |
TransactionRequest => "", |
TransactionRequest => "", |
TransactionReply => "", |
TransactionReply => "", |
InformReadable => 0, |
InformReadable => 0, |
InformWritable => 0, |
InformWritable => 0, |
TimeoutCallback => undef, |
TimeoutCallback => undef, |
TransitionCallback => undef, |
TransitionCallback => undef, |
Timeoutable => 0, |
Timeoutable => 0, |
TimeoutValue => 30, |
TimeoutValue => 30, |
TimeoutRemaining => 0, |
TimeoutRemaining => 0, |
CipherKey => "", |
CipherKey => "", |
Cipher => undef}; |
LondVersion => "Unknown", |
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Cipher => undef}; |
bless($self, $class); |
bless($self, $class); |
unless ($self->{Socket} = IO::Socket::INET->new(PeerHost => $self->{Host}, |
unless ($self->{Socket} = IO::Socket::INET->new(PeerHost => $self->{Host}, |
PeerPort => $self->{Port}, |
PeerPort => $self->{Port}, |
Line 239 sub Readable {
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Line 279 sub Readable {
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my $self = shift; |
my $self = shift; |
my $socket = $self->{Socket}; |
my $socket = $self->{Socket}; |
my $data = ''; |
my $data = ''; |
my $rv = $socket->recv($data, POSIX::BUFSIZ, 0); |
my $rv; |
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if ($socket) { |
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eval { |
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$rv = $socket->recv($data, POSIX::BUFSIZ, 0); |
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} |
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} else { |
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$self->Transition("Disconnected"); |
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return -1; |
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} |
my $errno = $! + 0; # Force numeric context. |
my $errno = $! + 0; # Force numeric context. |
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unless (defined($rv) && length $data) {# Read failed, |
unless (defined($rv) && length $data) {# Read failed, |
Line 277 sub Readable {
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Line 325 sub Readable {
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$self->Transition("ChallengeReceived"); |
$self->Transition("ChallengeReceived"); |
$self->{TimeoutRemaining} = $self->{TimeoutValue}; |
$self->{TimeoutRemaining} = $self->{TimeoutValue}; |
return 0; |
return 0; |
} elsif ($self->{State} eq "ChallengeReplied") { # should be ok. |
} elsif ($self->{State} eq "ChallengeReplied") { |
if($self->{TransactionReply} != "ok\n") { |
if($self->{TransactionReply} ne "ok\n") { |
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$self->Transition("Disconnected"); |
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$socket->close(); |
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return -1; |
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} |
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$self->Transition("RequestingVersion"); |
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$self->{InformReadable} = 0; |
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$self->{InformWritable} = 1; |
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$self->{TransactionRequest} = "version\n"; |
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return 0; |
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} elsif ($self->{State} eq "ReadingVersionString") { |
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$self->{LondVersion} = chomp($self->{TransactionReply}); |
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$self->Transition("SetHost"); |
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$self->{InformReadable} = 0; |
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$self->{InformWritable} = 1; |
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my $peer = $self->{LoncapaHim}; |
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$self->{TransactionRequest}= "sethost:$peer\n"; |
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return 0; |
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} elsif ($self->{State} eq "HostSet") { # should be ok. |
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if($self->{TransactionReply} ne "ok\n") { |
$self->Transition("Disconnected"); |
$self->Transition("Disconnected"); |
$socket->close(); |
$socket->close(); |
return -1; |
return -1; |
Line 354 Returns 0 if successful, or -1 if not.
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Line 421 Returns 0 if successful, or -1 if not.
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sub Writable { |
sub Writable { |
my $self = shift; # Get reference to the object. |
my $self = shift; # Get reference to the object. |
my $socket = $self->{Socket}; |
my $socket = $self->{Socket}; |
my $nwritten = $socket->send($self->{TransactionRequest}, 0); |
my $nwritten; |
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if ($socket) { |
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eval { |
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$nwritten = $socket->send($self->{TransactionRequest}, 0); |
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} |
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} else { |
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# For whatever reason, there's no longer a socket left. |
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$self->Transition("Disconnected"); |
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return -1; |
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} |
my $errno = $! + 0; |
my $errno = $! + 0; |
unless (defined $nwritten) { |
unless (defined $nwritten) { |
if($errno != POSIX::EINTR) { |
if($errno != POSIX::EINTR) { |
Line 369 sub Writable {
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Line 447 sub Writable {
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($errno == POSIX::EINTR) || |
($errno == POSIX::EINTR) || |
($errno == 0)) { |
($errno == 0)) { |
substr($self->{TransactionRequest}, 0, $nwritten) = ""; # rmv written part |
substr($self->{TransactionRequest}, 0, $nwritten) = ""; # rmv written part |
if(length $self->{TransactionRequest} == 0) { |
if(length $self->{TransactionRequest} == 0) { |
$self->{InformWritable} = 0; |
$self->{InformWritable} = 0; |
$self->{InformReadable} = 1; |
$self->{InformReadable} = 1; |
$self->{TransactionReply} = ''; |
$self->{TransactionReply} = ''; |
# |
# |
# Figure out the next state: |
# Figure out the next state: |
# |
# |
if($self->{State} eq "Connected") { |
if($self->{State} eq "Connected") { |
$self->Transition("Initialized"); |
$self->Transition("Initialized"); |
} elsif($self->{State} eq "ChallengeReceived") { |
} elsif($self->{State} eq "ChallengeReceived") { |
$self->Transition("ChallengeReplied"); |
$self->Transition("ChallengeReplied"); |
} elsif($self->{State} eq "RequestingKey") { |
} elsif($self->{State} eq "RequestingVersion") { |
$self->Transition("ReceivingKey"); |
$self->Transition("ReadingVersionString"); |
$self->{InformWritable} = 0; |
} elsif ($self->{State} eq "SetHost") { |
$self->{InformReadable} = 1; |
$self->Transition("HostSet"); |
$self->{TransactionReply} = ''; |
} elsif($self->{State} eq "RequestingKey") { |
} elsif ($self->{State} eq "SendingRequest") { |
$self->Transition("ReceivingKey"); |
$self->Transition("ReceivingReply"); |
# $self->{InformWritable} = 0; |
$self->{TimeoutRemaining} = $self->{TimeoutValue}; |
# $self->{InformReadable} = 1; |
} elsif ($self->{State} eq "Disconnected") { |
# $self->{TransactionReply} = ''; |
return -1; |
} elsif ($self->{State} eq "SendingRequest") { |
} |
$self->Transition("ReceivingReply"); |
return 0; |
$self->{TimeoutRemaining} = $self->{TimeoutValue}; |
} |
} elsif ($self->{State} eq "Disconnected") { |
} else { # The write failed (e.g. partner disconnected). |
return -1; |
$self->Transition("Disconnected"); |
} |
$socket->close(); |
return 0; |
return -1; |
} |
} |
} else { # The write failed (e.g. partner disconnected). |
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$self->Transition("Disconnected"); |
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$socket->close(); |
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return -1; |
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} |
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} |
} |
=pod |
=pod |
Line 523 Shuts down the socket.
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Line 605 Shuts down the socket.
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sub Shutdown { |
sub Shutdown { |
my $self = shift; |
my $self = shift; |
my $socket = $self->GetSocket(); |
my $socket = $self->GetSocket(); |
$socket->shutdown(2); |
Debug(5,"socket is -$socket-"); |
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if ($socket) { |
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# Ask lond to exit too. Non blocking so |
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# there is no cost for failure. |
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eval { |
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$socket->send("exit\n", 0); |
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$socket->shutdown(2); |
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} |
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} |
} |
} |
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=pod |
=pod |
Line 745 sub read_conf
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Line 835 sub read_conf
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my %perlvar; |
my %perlvar; |
foreach my $filename (@conf_files,'loncapa_apache.conf') |
foreach my $filename (@conf_files,'loncapa_apache.conf') |
{ |
{ |
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if($DebugLevel > 3) { |
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print("Going to read $confdir.$filename\n"); |
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} |
open(CONFIG,'<'.$confdir.$filename) or |
open(CONFIG,'<'.$confdir.$filename) or |
die("Can't read $confdir$filename"); |
die("Can't read $confdir$filename"); |
while (my $configline=<CONFIG>) |
while (my $configline=<CONFIG>) |
Line 758 sub read_conf
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Line 851 sub read_conf
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} |
} |
close(CONFIG); |
close(CONFIG); |
} |
} |
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if($DebugLevel > 3) { |
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print "Dumping perlvar:\n"; |
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foreach my $var (keys %perlvar) { |
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print "$var = $perlvar{$var}\n"; |
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} |
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} |
my $perlvarref=\%perlvar; |
my $perlvarref=\%perlvar; |
return ($perlvarref); |
return $perlvarref; |
} |
} |
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#---------------------- Subroutine read_hosts: Read a LON-CAPA hosts.tab |
#---------------------- Subroutine read_hosts: Read a LON-CAPA hosts.tab |
# formatted configuration file. |
# formatted configuration file. |
Line 774 sub read_hosts {
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Line 873 sub read_hosts {
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my $Filename = shift; |
my $Filename = shift; |
my %HostsTab; |
my %HostsTab; |
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open(CONFIG,'<'.$Filename) or die("Can't read $Filename"); |
open(CONFIG,'<'.$Filename) or die("Can't read $Filename"); |
while (my $line = <CONFIG>) { |
while (my $line = <CONFIG>) { |
if (!($line =~ /^\s*\#/)) { |
if (!($line =~ /^\s*\#/)) { |
my @items = split(/:/, $line); |
my @items = split(/:/, $line); |
Line 800 sub read_hosts {
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Line 899 sub read_hosts {
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my $hostref = \%HostsTab; |
my $hostref = \%HostsTab; |
return ($hostref); |
return ($hostref); |
} |
} |
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# |
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# Get the version of our peer. Note that this is only well |
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# defined if the state machine has hit the idle state at least |
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# once (well actually if it has transitioned out of |
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# ReadingVersionString The member data LondVersion is returned. |
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# |
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sub PeerVersion { |
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my $self = shift; |
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return $self->{LondVersion}; |
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} |
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1; |
1; |
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