Man Pages

Net::SSLeay::Handle(3) - phpMan Net::SSLeay::Handle(3) - phpMan

Command: man perldoc info search(apropos)  


Net::SSLeay::Handle(3)User Contributed Perl DocumentatioNet::SSLeay::Handle(3)



NAME
       Net::SSLeay::Handle - Perl module that lets SSL (HTTPS) sockets be handled as standard file handles.

SYNOPSIS
         use Net::SSLeay::Handle qw/shutdown/;
         my ($host, $port) = ("localhost", 443);

         tie(*SSL, "Net::SSLeay::Handle", $host, $port);

         print SSL "GET / HTTP/1.0\r\n";
         shutdown(\*SSL, 1);
         print while (<SSL>);
         close SSL;

DESCRIPTION
       Net::SSLeay::Handle allows you to request and receive HTTPS web pages using "old-fashion" file handles as in:

           print SSL "GET / HTTP/1.0\r\n";

       and

           print while (<SSL>);

       If you export the shutdown routine, then the only extra code that you need to add to your program is the tie
       function as in:

           my $socket;
           if ($scheme eq "https") {
               tie(*S2, "Net::SSLeay::Handle", $host, $port);
               $socket = \*S2;
           else {
               $socket = Net::SSLeay::Handle->make_socket($host, $port);
           }
           print $socket $request_headers;
           ...

FUNCTIONS
       shutdown
             shutdown(\*SOCKET, $mode)

           Calls to the main shutdown() don't work with tied sockets created with this module.  This shutdown should
           be able to distinquish between tied and untied sockets and do the right thing.

       debug
             my $debug = Net::SSLeay::Handle->debug()
             Net::SSLeay::Handle->debug(1)

           Get/set debuging mode. Always returns the debug value before the function call.  if an additional argument
           is given the debug option will be set to this value.

       make_socket
             my $sock = Net::SSLeay::Handle->make_socket($host, $port);

           Creates a socket that is connected to $post using $port. It uses $Net::SSLeay::proxyhost and proxyport if
           set and authentificates itself against this proxy depending on $Net::SSLeay::proxyauth. It also turns
           autoflush on for the created socket.

   USING EXISTING SOCKETS
       One of the motivations for writing this module was to avoid duplicating socket creation code (which is mostly
       error handling).  The calls to tie() above where it is passed a $host and $port is provided for convenience
       testing.  If you already have a socket connected to the right host and port, S1, then you can do something
       like:

           my $socket \*S1;
           if ($scheme eq "https") {
               tie(*S2, "Net::SSLeay::Handle", $socket);
               $socket = \*S2;
           }
           my $last_sel = select($socket); $| = 1; select($last_sel);
           print $socket $request_headers;
           ...

       Note: As far as I know you must be careful with the globs in the tie() function.  The first parameter must be a
       glob (*SOMETHING) and the last parameter must be a reference to a glob (\*SOMETHING_ELSE) or a scaler that was
       assigned to a reference to a glob (as in the example above)

       Also, the two globs must be different.  When I tried to use the same glob, I got a core dump.

   EXPORT
       None by default.

       You can export the shutdown() function.

       It is suggested that you do export shutdown() or use the fully qualified Net::SSLeay::Handle::shutdown()
       function to shutdown SSL sockets.  It should be smart enough to distinguish between SSL and non-SSL sockets and
       do the right thing.

EXAMPLES
         use Net::SSLeay::Handle qw/shutdown/;
         my ($host, $port) = ("localhost", 443);

         tie(*SSL, "Net::SSLeay::Handle", $host, $port);

         print SSL "GET / HTTP/1.0\r\n";
         shutdown(\*SSL, 1);
         print while (<SSL>);
         close SSL;

TODO
       Better error handling.  Callback routine?

CAVEATS
       Tying to a file handle is a little tricky (for me at least).

       The first parameter to tie() must be a glob (*SOMETHING) and the last parameter must be a reference to a glob
       (\*SOMETHING_ELSE) or a scaler that was assigned to a reference to a glob ($s = \*SOMETHING_ELSE).  Also, the
       two globs must be different.  When I tried to use the same glob, I got a core dump.

       I was able to associate attributes to globs created by this module (like *SSL above) by making a hash of hashes
       keyed by the file head1.

       Support for old perls may not be 100%. If in trouble try 5.6.0 or newer.

CHANGES
       Please see Net-SSLeay-Handle-0.50/Changes file.

KNOWN BUGS
       If you let this module construct sockets for you with Perl versions below v.5.6 then there is a slight memory
       leak.  Other upgrade your Perl, or create the sockets yourself.  The leak was created to let these older
       versions of Perl access more than one Handle at a time.

AUTHOR
       Jim Bowlin jbowlinATlinklint.org

SEE ALSO
       Net::SSLeay, perl(1), http://openssl.org/



perl v5.10.1                      2006-09-14            Net::SSLeay::Handle(3)