NAME POE::Component::SSLify - Makes using SSL in the world of POE easy! VERSION This document describes v1.003 of POE::Component::SSLify - released February 28, 2011 as part of POE-Component-SSLify. SYNOPSIS # CLIENT-side usage # Import the module use POE::Component::SSLify qw( Client_SSLify ); # Create a normal SocketFactory wheel and connect to a SSL-enabled server my $factory = POE::Wheel::SocketFactory->new; # Time passes, SocketFactory gives you a socket when it connects in SuccessEvent # Convert the socket into a SSL socket POE can communicate with my $socket = shift; eval { $socket = Client_SSLify( $socket ) }; if ( $@ ) { # Unable to SSLify it... } # Now, hand it off to ReadWrite my $rw = POE::Wheel::ReadWrite->new( Handle => $socket, # other options as usual ); # --------------------------------------------------------------------------- # # SERVER-side usage # !!! Make sure you have a public key + certificate # excellent howto: http://www.akadia.com/services/ssh_test_certificate.html # Import the module use POE::Component::SSLify qw( Server_SSLify SSLify_Options ); # Set the key + certificate file eval { SSLify_Options( 'server.key', 'server.crt' ) }; if ( $@ ) { # Unable to load key or certificate file... } # Create a normal SocketFactory wheel to listen for connections my $factory = POE::Wheel::SocketFactory->new; # Time passes, SocketFactory gives you a socket when it gets a connection in SuccessEvent # Convert the socket into a SSL socket POE can communicate with my $socket = shift; eval { $socket = Server_SSLify( $socket ) }; if ( $@ ) { # Unable to SSLify it... } # Now, hand it off to ReadWrite my $rw = POE::Wheel::ReadWrite->new( Handle => $socket, # other options as usual ); DESCRIPTION This component represents the standard way to do SSL in POE. FUNCTIONS Client_SSLify Accepts a socket, returns a brand new socket SSLified. Optionally accepts SSL context data. my $socket = shift; # get the socket from somewhere $socket = Client_SSLify( $socket ); # the default $socket = Client_SSLify( $socket, $version, $options ); # sets more options for the context $socket = Client_SSLify( $socket, undef, undef, $ctx ); # pass in a custom context If $ctx is defined, SSLify will ignore other args. If $ctx isn't defined, SSLify will create it from the $version + $options parameters. Known versions: * sslv2 * sslv3 * tlsv1 * default By default we use the version: default By default we don't set any options NOTE: The way to have a client socket with proper certificates set up is: my $socket = shift; # get the socket from somewhere my $ctx = SSLify_ContextCreate( 'server.key', 'server.crt' ); $socket = Client_SSLify( $socket, undef, undef, $ctx ); BEWARE: If you passed in a CTX, SSLify will do Net::SSLeay::CTX_free( $ctx ) when the socket is destroyed. This means you cannot reuse contexts! Server_SSLify Accepts a socket, returns a brand new socket SSLified my $socket = shift; # get the socket from somewhere $socket = Server_SSLify( $socket ); NOTE: SSLify_Options must be set first! Furthermore, you can pass in your own $ctx object if you desire. This allows you to set custom parameters per-connection, for example. my $socket = shift; # get the socket from somewhere my $ctx = SSLify_ContextCreate(); # set various options on $ctx as desired $socket = Server_SSLify( $socket, $ctx ); NOTE: You can use SSLify_GetCTX to modify the global, and avoid doing this on every connection if the options are the same... SSLify_ContextCreate Accepts some options, and returns a brand-new Net::SSLeay context object ( $ctx ) my $ctx = SSLify_ContextCreate( $key, $cert, $version, $options ); You can then call various Net::SSLeay methods on the context my $mode = Net::SSLeay::CTX_get_mode( $ctx ); By default we don't use the SSL key + certificate files By default we use the version: default Known versions: * sslv2 * sslv3 * tlsv1 * default By default we don't set any options SSLify_Options Call this function to initialize the global server-side CTX. Accepts the location of the SSL key + certificate files, which is required. Optionally accepts the SSL version + CTX options SSLify_Options( $key, $cert, $version, $options ); By default we use the version: default Known versions: * sslv2 * sslv3 * tlsv1 * default By default we use the options: &Net::SSLeay::OP_ALL SSLify_GetCTX Returns the actual Net::SSLeay context object in case you wanted to play with it :) If passed in a socket, it will return that socket's $ctx instead of the global. my $ctx = SSLify_GetCTX(); # get the one set via SSLify_Options my $ctx = SSLify_GetCTX( $sslified_sock ); # get the one in the object SSLify_GetCipher Returns the cipher used by the SSLified socket Example: print "SSL Cipher is: " . SSLify_GetCipher( $sslified_sock ) . "\n"; NOTE: Doing this immediately after Client_SSLify or Server_SSLify will result in "(NONE)" because the SSL handshake is not done yet. The socket is nonblocking, so you will have to wait a little bit for it to get ready. apoc@blackhole:~/mygit/perl-poe-sslify/examples$ perl serverclient.pl got connection from: 127.0.0.1 - commencing Server_SSLify() SSLified: 127.0.0.1 cipher type: ((NONE)) Connected to server, commencing Client_SSLify() SSLified the connection to the server Connected to SSL server Input: hola got input from: 127.0.0.1 cipher type: (AES256-SHA) input: 'hola' Got Reply: hola Input: ^C stopped at serverclient.pl line 126. SSLify_GetSocket Returns the actual socket used by the SSLified socket, useful for stuff like getpeername()/getsockname() Example: print "Remote IP is: " . inet_ntoa( ( unpack_sockaddr_in( getpeername( SSLify_GetSocket( $sslified_sock ) ) ) )[1] ) . "\n"; SSLify_GetSSL Returns the actual Net::SSLeay object so you can call methods on it Example: print Net::SSLeay::dump_peer_certificate( SSLify_GetSSL( $sslified_sock ) ); NOTES Socket methods doesn't work The new socket this module gives you actually is some tied socket magic, so you cannot do stuff like getpeername() or getsockname(). The only way to do it is to use "SSLify_GetSocket" and then operate on the socket it returns. Dying everywhere... This module will die() if Net::SSLeay could not be loaded or it is not the version we want. So, it is recommended that you check for errors and not use SSL, like so: eval { use POE::Component::SSLify }; if ( $@ ) { $sslavailable = 0; } else { $sslavailable = 1; } # Make socket SSL! if ( $sslavailable ) { eval { $socket = POE::Component::SSLify::Client_SSLify( $socket ) }; if ( $@ ) { # Unable to SSLify the socket... } } $IGNORE_SSL_ERRORS As of SSLify v1.003 you can override this variable to temporarily ignore some SSL errors. This is useful if you are doing crazy things with the underlying Net::SSLeay stuff and don't want to die. However, it won't ignore all errors as some is still considered fatal. Here's an example: { local $POE::Component::SSLify::IGNORE_SSL_ERRORS=1; my $ctx = SSLify_CreateContext(...); #Some more stuff } OpenSSL functions Theoretically you can do anything that Net::SSLeay exports from the OpenSSL libs on the socket. However, I have not tested every possible function against SSLify, so use them carefully! Net::SSLeay::renegotiate This function has been tested ( it's in "t/2_renegotiate.t" ) but it doesn't work on FreeBSD! I tracked it down to this security advisory: which explains it in detail. The test will skip this function if it detects that you're on a broken system. However, if you have the updated OpenSSL library that fixes this you can use it. In-Situ sslification You can have a normal plaintext socket, and convert it to SSL anytime. Just keep in mind that the client and the server must agree to sslify at the same time, or they will be waiting on each other forever! See "t/3_insitu.t" for an example of how this works. MSWin32 is not supported This module doesn't work on MSWin32 platforms at all ( XP, Vista, 7, etc ) because of some weird underlying fd issues. Since I'm not a windows developer, I'm unable to fix this. However, it seems like Cygwin on MSWin32 works just fine! Please help me fix this if you can, thanks! EXPORT Stuffs all of the above functions in @EXPORT_OK so you have to request them directly SEE ALSO Please see those modules/websites for more information related to this module. * POE * Net::SSLeay SUPPORT Perldoc You can find documentation for this module with the perldoc command. perldoc POE::Component::SSLify Websites The following websites have more information about this module, and may be of help to you. As always, in addition to those websites please use your favorite search engine to discover more resources. * Search CPAN * RT: CPAN's Bug Tracker * AnnoCPAN: Annotated CPAN documentation * CPAN Ratings * CPAN Forum * CPANTS Kwalitee * CPAN Testers Results * CPAN Testers Matrix Email You can email the author of this module at "APOCAL at cpan.org" asking for help with any problems you have. Internet Relay Chat You can get live help by using IRC ( Internet Relay Chat ). If you don't know what IRC is, please read this excellent guide: . Please be courteous and patient when talking to us, as we might be busy or sleeping! You can join those networks/channels and get help: * irc.perl.org You can connect to the server at 'irc.perl.org' and join this channel: #perl-help then talk to this person for help: Apocalypse. * irc.freenode.net You can connect to the server at 'irc.freenode.net' and join this channel: #perl then talk to this person for help: Apocal. * irc.efnet.org You can connect to the server at 'irc.efnet.org' and join this channel: #perl then talk to this person for help: Ap0cal. Bugs / Feature Requests Please report any bugs or feature requests by email to "bug-poe-component-sslify at rt.cpan.org", or through the web interface at . You will be automatically notified of any progress on the request by the system. Source Code The code is open to the world, and available for you to hack on. Please feel free to browse it and play with it, or whatever. If you want to contribute patches, please send me a diff or prod me to pull from your repository :) git clone git://github.com/apocalypse/perl-poe-sslify.git AUTHOR Apocalypse ACKNOWLEDGEMENTS Original code is entirely Rocco Caputo ( Creator of POE ) -> I simply packaged up the code into something everyone could use and accepted the burden of maintaining it :) From the PoCo::Client::HTTP code =] # This code should probably become a POE::Kernel method, # seeing as it's rather baroque and potentially useful in a number # of places. ASCENT also helped a lot with the nonblocking mode, without his hard work this module would still be stuck in the stone age :) COPYRIGHT AND LICENSE This software is copyright (c) 2011 by Apocalypse. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. The full text of the license can be found in the LICENSE file included with this distribution.