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Diff for /loncom/lonssl.pm between versions 1.2 and 1.6

version 1.2, 2004/05/26 11:12:58 version 1.6, 2004/05/28 09:37:03
Line 23 Line 23
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   package lonssl;
 #  lonssl.pm  #  lonssl.pm
 #    This file contains common functions used by lond and lonc when   #    This file contains common functions used by lond and lonc when 
 #    negotiating the exchange of the session encryption key via an   #    negotiating the exchange of the session encryption key via an 
Line 32 Line 32
 #  #
   
 use strict;  use strict;
   
   # CPAN/Standard  modules:
   
   use English;
 use IO::Socket::INET;  use IO::Socket::INET;
 use IO::Socket::SSL;  use IO::Socket::SSL;
   
   #  Loncapa modules:
   
   use LONCAPA::Configuration;
   
   #  Global storage:
   
   my $perlvar; #  this refers to the apache perlsetvar 
                                   # variable hash.
   
   my $pathsep = "/"; # We're on unix after all.
   
   
   # Initialization code:
   
   $perlvar = LONCAPA::Configuration::read_conf('loncapa.conf');
   
   
   
 #--------------------------------------------------------------------------  #--------------------------------------------------------------------------
 #  #
Line 55  use IO::Socket::SSL; Line 76  use IO::Socket::SSL;
 #               IO::Socket::SSL  #               IO::Socket::SSL
   
 sub PromoteClientSocket {  sub PromoteClientSocket {
   my $PlaintextSocket    = shift;      my ($PlaintextSocket,
   my $CACert             = shift;   $CACert,
   my $MyCert             = shift;   $MyCert,
   my $KeyFile            = shift;   $KeyFile)          = @ARG;
       
   # To create the ssl socket we need to duplicate the existing      
   # socket.  Otherwise closing the ssl socket will close the plaintext socket      # To create the ssl socket we need to duplicate the existing
   # too:      # socket.  Otherwise closing the ssl socket will close the plaintext socket
       # too:
   open (DUPLICATE, "+>$PlaintextSocket");      
       open (DUPLICATE, "+>$PlaintextSocket");
   my $client = IO::Socket::SSL->new_from_fd(fileno(DUPLICATE),      
     SSL_user_cert => 1,      my $client = IO::Socket::SSL->new_from_fd(fileno(DUPLICATE),
     SSL_key_file  => $KeyFile,        SSL_user_cert => 1,
     SSL_cert_file => $MyCert,        SSL_key_file  => $KeyFile,
     SSL_ca_fie    => $$CACert);        SSL_cert_file => $MyCert,
         SSL_ca_fie    => $$CACert);
   return $client; # Undef if the client negotiation fails.      
       return $client; # Undef if the client negotiation fails.
 }  }
   
 #----------------------------------------------------------------------  #----------------------------------------------------------------------
Line 91  sub PromoteClientSocket { Line 113  sub PromoteClientSocket {
 # - Reference to an SSL socket on success  # - Reference to an SSL socket on success
 #       - undef on failure.  Reason for failure can be interrogated from   #       - undef on failure.  Reason for failure can be interrogated from 
 #               IO::Socket::SSL  #               IO::Socket::SSL
 sub PromoteServerSocket   sub PromoteServerSocket {
 {      my ($PlaintextSocket,
   my $PlaintextSocket    = shift;   $CACert,
   my $CACert             = shift;   $MyCert,
   my $MyCert             = shift;   $KeyFile)          = @ARG;
   my $KeyFile            = shift;  
   
   
   # To create the ssl socket we need to duplicate the existing      # To create the ssl socket we need to duplicate the existing
   # socket.  Otherwise closing the ssl socket will close the plaintext socket      # socket.  Otherwise closing the ssl socket will close the plaintext socket
   # too:      # too:
   
   open (DUPLICATE, "+>$PlaintextSocket");      open (DUPLICATE, "+>$PlaintextSocket");
   
   my $client = IO::Socket::SSL->new_from_fd(fileno(DUPLICATE),      my $client = IO::Socket::SSL->new_from_fd(fileno(DUPLICATE),
     SSL_server    => 1, # Server role.        SSL_server    => 1, # Server role.
     SSL_user_cert => 1,        SSL_user_cert => 1,
     SSL_key_file  => $KeyFile,        SSL_key_file  => $KeyFile,
     SSL_cert_file => $MyCert,        SSL_cert_file => $MyCert,
     SSL_ca_fie    => $$CACert);        SSL_ca_fie    => $$CACert);
   return $client;      return $client;
 }  }
   
 #-------------------------------------------------------------------------  #-------------------------------------------------------------------------
Line 127  sub PromoteServerSocket Line 149  sub PromoteServerSocket
 #   NONE  #   NONE
 #  #
 sub Close {  sub Close {
   my $Socket = shift;      my $Socket = shift;
       
       $Socket->close(SSL_no_shutdown =>1); # Otherwise the parent socket 
                                            # gets torn down.
   }
   #---------------------------------------------------------------------------
   #
   # Name   GetPeerCertificate
   # Description Inquires about the certificate of the peer of a connection.
   # Parameters Name        Type          Description
   #               SSLSocket IO::Socket::SSL  SSL tunnel socket open on 
   #                                                 the peer.
   # Returns
   # A two element list.  The first element of the list is the name of 
   #       the certificate authority.  The second element of the list is the name 
   #       of the owner of the certificate.
   sub GetPeerCertificate {
       my $SSLSocket = shift;
       
       my $CertOwner = $SSLSocket->peer_certificate("owner");
       my $CertCA    = $SSLSocket->peer_certificate("authority");
       
       return \($CertCA, $CertOwner);
   }
   #----------------------------------------------------------------------------
   #
   # Name   CertificateFile
   # Description Locate the certificate files for this host.
   # Returns
   # Returns a two element array.  The first element contains the name of
   #  the certificate file for this host.  The second element contains the name
   #  of the  certificate file for the CA that granted the certificate.  If 
   #  either file cannot be located, returns undef.
   #
   sub CertificateFile {
   
       # I need some perl variables from the configuration file for this:
       
       my $CertificateDir  = $perlvar->{lonCertificateDirectory};
       my $CaFilename      = $perlvar->{lonnetCertificateAuthority};
       my $CertFilename    = $perlvar->{lonnetCertificate};
       
       #  Ensure the existence of these variables:
       
       if((!$CertificateDir)  || (!$CaFilename) || (!$CertFilename)) {
    return undef;
       }
       
       #   Build the actual filenames and check for their existence and
       #   readability.
       
       my $CaFilename   = $CertificateDir.$pathsep.$CaFilename;
       my $CertFilename = $CertificateDir.$pathsep.$CertFilename;
       
       if((! -r $CaFilename) || (! -r $CertFilename)) {
    return undef;
       }
       
       # Everything works fine!!
       
       return \($CaFilename, $CertFilename);
   
   }
   #------------------------------------------------------------------------
   #
   # Name        KeyFile
   # Description
   #      Returns the name of the private key file of the current host.
   # Returns
   #      Returns the name of the key file or undef if the file cannot 
   #      be found.
   #
   sub KeyFile {
   
   $Socket->close(SSL_no_shutdown =>1); # Otherwise the parent socket       # I need some perl variables from the configuration file for this:
                                        # gets torn down.      
       my $CertificateDir   = $perlvar->{lonCertificateDirectory};
       my $KeyFilename      = $perlvar->{lonnetPrivateKey};
       
       # Ensure the variables exist:
       
       if((!$CertificateDir) || (!$KeyFilename)) {
    return undef;
       }
       
       # Build the actual filename and ensure that it not only exists but
       # is also readable:
       
       my $KeyFilename    = $CertificateDir.$pathsep.$KeyFilename;
       if(! (-r $KeyFilename)) {
    return undef;
       }
       
       return $KeyFilename;
 }  }
   
   1;
Removed from v.1.2  
changed lines
  Added in v.1.6

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