version 1.35, 2004/09/21 10:51:42
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version 1.44, 2007/03/28 20:28:29
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Line 43 use LONCAPA::lonssl;
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Line 43 use LONCAPA::lonssl;
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my $DebugLevel=0; |
my $DebugLevel=0; |
my %hostshash; |
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my %perlvar; |
my %perlvar; |
my $LocalDns = ""; # Need not be defined for managers. |
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my $InsecureOk; |
my $InsecureOk; |
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# |
# |
Line 71 sub ReadConfig {
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Line 69 sub ReadConfig {
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my $perlvarref = read_conf('loncapa.conf'); |
my $perlvarref = read_conf('loncapa.conf'); |
%perlvar = %{$perlvarref}; |
%perlvar = %{$perlvarref}; |
my $hoststab = read_hosts( |
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"$perlvar{lonTabDir}/hosts.tab") || |
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die "Can't read host table!!"; |
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%hostshash = %{$hoststab}; |
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$ConfigRead = 1; |
$ConfigRead = 1; |
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my $myLonCapaName = $perlvar{lonHostID}; |
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Debug(8, "My loncapa name is $myLonCapaName"); |
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if(defined $hostshash{$myLonCapaName}) { |
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Debug(8, "My loncapa name is in hosthash"); |
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my @ConfigLine = @{$hostshash{$myLonCapaName}}; |
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$LocalDns = $ConfigLine[3]; |
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Debug(8, "Got local name $LocalDns"); |
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} |
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$InsecureOk = $perlvar{loncAllowInsecure}; |
$InsecureOk = $perlvar{loncAllowInsecure}; |
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Debug(3, "ReadConfig - LocalDNS = $LocalDns"); |
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} |
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# |
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# Read a foreign configuration. |
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# This sub is intended for the cases where the package |
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# will be read from outside the LonCAPA environment, in that case |
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# the client will need to explicitly provide: |
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# - A file in hosts.tab format. |
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# - Some idea of the 'lonCAPA' name of the local host (for building |
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# the encryption key). |
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# |
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# Parameters: |
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# MyHost - Name of this host as far as LonCAPA is concerned. |
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# Filename - Name of a hosts.tab formatted file that will be used |
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# to build up the hosts table. |
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# |
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sub ReadForeignConfig { |
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my ($MyHost, $Filename) = @_; |
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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 STDERR "host $host => $hostshash{$host}\n"; |
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} |
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} |
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$ConfigRead = 1; |
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my $myLonCapaName = $perlvar{lonHostID}; |
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if(defined $hostshash{$myLonCapaName}) { |
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my @ConfigLine = @{$hostshash{$myLonCapaName}}; |
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$LocalDns = $ConfigLine[3]; |
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} |
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$InsecureOk = $perlvar{loncAllowInsecure}; |
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Debug(3, "ReadForeignConfig - LocalDNS = $LocalDns"); |
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} |
} |
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sub Debug { |
sub Debug { |
Line 157 sub Dump {
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Line 97 sub Dump {
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my $now = time; |
my $now = time; |
my $local = localtime($now); |
my $local = localtime($now); |
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if ($level <= $DebugLevel) { |
if ($level >= $DebugLevel) { |
return; |
return; |
} |
} |
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Line 165 sub Dump {
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Line 105 sub Dump {
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my $key; |
my $key; |
my $value; |
my $value; |
print STDERR "[ $local ] Dumping LondConnectionObject:\n"; |
print STDERR "[ $local ] Dumping LondConnectionObject:\n"; |
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print STDERR join(':',caller(1))."\n"; |
while(($key, $value) = each %$self) { |
while(($key, $value) = each %$self) { |
print STDERR "$key -> $value\n"; |
print STDERR "$key -> $value\n"; |
} |
} |
Line 212 host the remote lond is on. This host is
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Line 153 host the remote lond is on. This host is
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=cut |
=cut |
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sub new { |
sub new { |
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my ($class, $DnsName, $Port, $lonid) = @_; |
my ($class, $Hostname, $Port) = @_; |
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if (!$ConfigRead) { |
if (!$ConfigRead) { |
ReadConfig(); |
ReadConfig(); |
$ConfigRead = 1; |
$ConfigRead = 1; |
} |
} |
&Debug(4,$class."::new( ".$Hostname.",".$Port.")\n"); |
&Debug(4,$class."::new( ".$DnsName.",".$Port.")\n"); |
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# The host must map to an entry in the hosts table: |
# The host must map to an entry in the hosts table: |
# We connect to the dns host that corresponds to that |
# We connect to the dns host that corresponds to that |
Line 227 sub new {
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Line 167 sub new {
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# negotion. In the objec these become the Host and |
# negotion. In the objec these become the Host and |
# LoncapaHim fields of the object respectively. |
# LoncapaHim fields of the object respectively. |
# |
# |
if (!exists $hostshash{$Hostname}) { |
# if it is me use loopback for connection |
&Debug(8, "No Such host $Hostname"); |
if ($DnsName eq &main::my_hostname()) { $DnsName="127.0.0.1"; } |
return undef; # No such host!!! |
Debug(9, "Connecting to $DnsName"); |
} |
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my @ConfigLine = @{$hostshash{$Hostname}}; |
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my $DnsName = $ConfigLine[3]; # 4'th item is dns of host. |
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Debug(5, "Connecting to ".$DnsName); |
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# Now create the object... |
# Now create the object... |
my $self = { Host => $DnsName, |
my $self = { Host => $DnsName, |
LoncapaHim => $Hostname, |
LoncapaHim => $lonid, |
Port => $Port, |
Port => $Port, |
State => "Initialized", |
State => "Initialized", |
AuthenticationMode => "", |
AuthenticationMode => "", |
TransactionRequest => "", |
TransactionRequest => "", |
TransactionReply => "", |
TransactionReply => "", |
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NextRequest => "", |
InformReadable => 0, |
InformReadable => 0, |
InformWritable => 0, |
InformWritable => 0, |
TimeoutCallback => undef, |
TimeoutCallback => undef, |
TransitionCallback => undef, |
TransitionCallback => undef, |
Timeoutable => 0, |
Timeoutable => 0, |
TimeoutValue => 30, |
TimeoutValue => 3, |
TimeoutRemaining => 0, |
TimeoutRemaining => 0, |
LocalKeyFile => "", |
LocalKeyFile => "", |
CipherKey => "", |
CipherKey => "", |
Line 259 sub new {
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Line 196 sub new {
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Type => SOCK_STREAM, |
Type => SOCK_STREAM, |
Proto => "tcp", |
Proto => "tcp", |
Timeout => 3)) { |
Timeout => 3)) { |
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Debug(8, "Error? \n$@ \n$!"); |
return undef; # Inidicates the socket could not be made. |
return undef; # Inidicates the socket could not be made. |
} |
} |
my $socket = $self->{Socket}; # For local use only. |
my $socket = $self->{Socket}; # For local use only. |
# If we are local, we'll first try local auth mode, otherwise, we'll try |
# If we are local, we'll first try local auth mode, otherwise, we'll try |
# the ssl auth mode: |
# the ssl auth mode: |
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Debug(8, "Connecting to $DnsName I am $LocalDns"); |
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my $key; |
my $key; |
my $keyfile; |
my $keyfile; |
if ($DnsName eq $LocalDns) { |
if ($DnsName eq '127.0.0.1') { |
$self->{AuthenticationMode} = "local"; |
$self->{AuthenticationMode} = "local"; |
($key, $keyfile) = lonlocal::CreateKeyFile(); |
($key, $keyfile) = lonlocal::CreateKeyFile(); |
Debug(8, "Local key: $key, stored in $keyfile"); |
Debug(8, "Local key: $key, stored in $keyfile"); |
Line 293 sub new {
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Line 230 sub new {
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return undef; |
return undef; |
} |
} |
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} |
} else { |
else { |
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# Remote peer: I'd like to do ssl, but if my host key or certificates |
# Remote peer: I'd like to do ssl, but if my host key or certificates |
# are not all installed, my only choice is insecure, if that's |
# are not all installed, my only choice is insecure, if that's |
# allowed: |
# allowed: |
Line 329 sub new {
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Line 265 sub new {
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# |
# |
# Set socket to nonblocking I/O. |
# Set socket to nonblocking I/O. |
# |
# |
my $socket = $self->{Socket}; |
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my $flags = fcntl($socket, F_GETFL,0); |
my $flags = fcntl($socket, F_GETFL,0); |
if(!$flags) { |
if(!$flags) { |
$socket->close; |
$socket->close; |
Line 504 sub Readable {
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Line 439 sub Readable {
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return 0; |
return 0; |
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} elsif ($self->{State} eq "ReadingVersionString") { |
} elsif ($self->{State} eq "ReadingVersionString") { |
$self->{LondVersion} = chomp($self->{TransactionReply}); |
chomp($self->{TransactionReply}); |
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$self->{LondVersion} = $self->{TransactionReply}; |
$self->Transition("SetHost"); |
$self->Transition("SetHost"); |
$self->{InformReadable} = 0; |
$self->{InformReadable} = 0; |
$self->{InformWritable} = 1; |
$self->{InformWritable} = 1; |
Line 557 sub Readable {
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Line 493 sub Readable {
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$answer = $self->Decrypt($answer); |
$answer = $self->Decrypt($answer); |
$self->{TransactionReply} = "$answer\n"; |
$self->{TransactionReply} = "$answer\n"; |
} |
} |
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# if we have a NextRequest do it immeadiately |
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if ($self->{NextRequest}) { |
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$self->{TransactionRequest} = $self->{NextRequest}; |
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undef( $self->{NextRequest} ); |
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$self->{TransactionReply} = ""; |
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$self->{InformWritable} = 1; |
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$self->{InformReadable} = 0; |
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$self->{Timeoutable} = 1; |
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$self->{TimeoutRemaining} = $self->{TimeoutValue}; |
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$self->Transition("SendingRequest"); |
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return 0; |
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} else { |
# finish the transaction |
# finish the transaction |
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$self->ToIdle(); |
$self->ToIdle(); |
return 0; |
return 0; |
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} |
} elsif ($self->{State} eq "Disconnected") { # No connection. |
} elsif ($self->{State} eq "Disconnected") { # No connection. |
return -1; |
return -1; |
} else { # Internal error: Invalid state. |
} else { # Internal error: Invalid state. |
Line 713 sub InitiateTransaction {
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Line 661 sub InitiateTransaction {
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return -1; # Error indicator. |
return -1; # Error indicator. |
} |
} |
# if the transaction is to be encrypted encrypt the data: |
# if the transaction is to be encrypted encrypt the data: |
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(my $sethost, my $server,$data)=split(/:/,$data,3); |
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if($data =~ /^encrypt\:/) { |
if($data =~ /^encrypt\:/) { |
$data = $self->Encrypt($data); |
$data = $self->Encrypt($data); |
} |
} |
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# Setup the trasaction |
# Setup the trasaction |
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# currently no version of lond supports inlining the sethost |
$self->{TransactionRequest} = $data; |
if ($self->PeerVersion() <= 321) { |
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if ($server ne $self->{LoncapaHim}) { |
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$self->{NextRequest} = $data; |
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$self->{TransactionRequest} = "$sethost:$server\n"; |
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$self->{LoncapaHim} = $server; |
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} else { |
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$self->{TransactionRequest} = $data; |
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} |
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} else { |
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$self->{LoncapaHim} = $server; |
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$self->{TransactionRequest} = "$sethost:$server:$data"; |
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} |
$self->{TransactionReply} = ""; |
$self->{TransactionReply} = ""; |
$self->{InformWritable} = 1; |
$self->{InformWritable} = 1; |
$self->{InformReadable} = 0; |
$self->{InformReadable} = 0; |
Line 1109 sub CompleteInsecure {
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Line 1069 sub CompleteInsecure {
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} |
} |
} |
} |
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=pod |
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=head2 GetHostIterator |
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Returns a hash iterator to the host information. Each get from |
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this iterator returns a reference to an array that contains |
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information read from the hosts configuration file. Array elements |
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are used as follows: |
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[0] - LonCapa host name. |
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[1] - LonCapa domain name. |
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[2] - Loncapa role (e.g. library or access). |
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[3] - DNS name server hostname. |
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[4] - IP address (result of e.g. nslookup [3]). |
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[5] - Maximum connection count. |
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[6] - Idle timeout for reducing connection count. |
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[7] - Minimum connection count. |
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=cut |
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sub GetHostIterator { |
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return HashIterator->new(\%hostshash); |
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} |
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########################################################### |
########################################################### |
# |
# |
# The following is an unashamed kludge that is here to |
# The following is an unashamed kludge that is here to |
Line 1145 sub GetHostIterator {
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Line 1080 sub GetHostIterator {
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# |
# |
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my $confdir='/etc/httpd/conf/'; |
my @confdirs=('/etc/httpd/conf/','/etc/apache2/'); |
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# ------------------- Subroutine read_conf: read LON-CAPA server configuration. |
# ------------------- Subroutine read_conf: read LON-CAPA server configuration. |
# This subroutine reads PerlSetVar values out of specified web server |
# This subroutine reads PerlSetVar values out of specified web server |
Line 1153 my $confdir='/etc/httpd/conf/';
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Line 1088 my $confdir='/etc/httpd/conf/';
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sub read_conf |
sub read_conf |
{ |
{ |
my (@conf_files)=@_; |
my (@conf_files)=@_; |
my %perlvar; |
my (%perlvar,%configdirs); |
foreach my $filename (@conf_files,'loncapa_apache.conf') |
foreach my $filename (@conf_files,'loncapa_apache.conf') { |
{ |
my $configdir = ''; |
if($DebugLevel > 3) { |
$configdirs{$filename} = [@confdirs]; |
print STDERR ("Going to read $confdir.$filename\n"); |
while ($configdir eq '' && @{$configdirs{$filename}} > 0) { |
} |
my $testdir = shift(@{$configdirs{$filename}}); |
open(CONFIG,'<'.$confdir.$filename) or |
if (-e $testdir.$filename) { |
die("Can't read $confdir$filename"); |
$configdir = $testdir; |
while (my $configline=<CONFIG>) |
} |
{ |
} |
if ($configline =~ /^[^\#]*PerlSetVar/) |
if ($configdir eq '') { |
{ |
die("Couldn't find a directory containing $filename"); |
my ($unused,$varname,$varvalue)=split(/\s+/,$configline); |
} |
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if($DebugLevel > 3) { |
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print STDERR ("Going to read $configdir.$filename\n"); |
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} |
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open(CONFIG,'<'.$configdir.$filename) or |
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die("Can't read $configdir$filename"); |
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while (my $configline=<CONFIG>) { |
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if ($configline =~ /^[^\#]*PerlSetVar/) { |
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my ($unused,$varname,$varvalue)=split(/\s+/,$configline); |
chomp($varvalue); |
chomp($varvalue); |
$perlvar{$varname}=$varvalue; |
$perlvar{$varname}=$varvalue; |
} |
} |
} |
} |
close(CONFIG); |
close(CONFIG); |
} |
} |
if($DebugLevel > 3) { |
if($DebugLevel > 3) { |
print STDERR "Dumping perlvar:\n"; |
print STDERR "Dumping perlvar:\n"; |
foreach my $var (keys %perlvar) { |
foreach my $var (keys %perlvar) { |
Line 1182 sub read_conf
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Line 1125 sub read_conf
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return $perlvarref; |
return $perlvarref; |
} |
} |
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#---------------------- Subroutine read_hosts: Read a LON-CAPA hosts.tab |
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# formatted configuration file. |
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# |
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my $RequiredCount = 5; # Required item count in hosts.tab. |
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my $DefaultMaxCon = 5; # Default value for maximum connections. |
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my $DefaultIdle = 1000; # Default connection idle time in seconds. |
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my $DefaultMinCon = 0; # Default value for minimum connections. |
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sub read_hosts { |
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my $Filename = shift; |
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my %HostsTab; |
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open(CONFIG,'<'.$Filename) or die("Can't read $Filename"); |
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while (my $line = <CONFIG>) { |
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if (!($line =~ /^\s*\#/)) { |
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my @items = split(/:/, $line); |
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if(scalar @items >= $RequiredCount) { |
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if (scalar @items == $RequiredCount) { # Only required items: |
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$items[$RequiredCount] = $DefaultMaxCon; |
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} |
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if(scalar @items == $RequiredCount + 1) { # up through maxcon. |
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$items[$RequiredCount+1] = $DefaultIdle; |
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} |
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if(scalar @items == $RequiredCount + 2) { # up through idle. |
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$items[$RequiredCount+2] = $DefaultMinCon; |
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} |
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{ |
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my @list = @items; # probably not needed but I'm unsure of |
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# about the scope of item so... |
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$HostsTab{$list[0]} = \@list; |
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} |
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} |
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} |
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} |
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close(CONFIG); |
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my $hostref = \%HostsTab; |
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return ($hostref); |
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} |
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# |
# |
# Get the version of our peer. Note that this is only well |
# Get the version of our peer. Note that this is only well |
# defined if the state machine has hit the idle state at least |
# defined if the state machine has hit the idle state at least |
Line 1228 sub read_hosts {
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Line 1133 sub read_hosts {
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# |
# |
sub PeerVersion { |
sub PeerVersion { |
my $self = shift; |
my $self = shift; |
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my ($version) = ($self->{LondVersion} =~ /Revision: 1\.(\d+)/); |
return $self->{LondVersion}; |
return $version; |
} |
} |
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1; |
1; |
Line 1425 true if the current state requires a wri
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Line 1330 true if the current state requires a wri
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true if the current state requires timeout support. |
true if the current state requires timeout support. |
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=item GetHostIterator: |
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Returns an iterator into the host file hash. |
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=cut |
=cut |