Module: Raktr::Connection::TLS

Defined in:
lib/raktr/connection/tls.rb

Overview

Author:

  • Tasos “Zapotek” Laskos <tasos.laskos@gmail.com>

Constant Summary collapse

CERTIFICATES = 
{}

Instance Method Summary collapse

Instance Method Details

#_connect ⇒ Object

Performs an SSL handshake in addition to a plaintext connect operation.



95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
 
# File 'lib/raktr/connection/tls.rb', line 95

def _connect
    return if @ssl_connected

    @plaintext_connected ||= super
    return if !@plaintext_connected

    # Mark the connection as not connected due to the pending SSL handshake.
    @connected = false

    @socket.connect_nonblock
    @ssl_connected = @connected = true
rescue IO::WaitReadable, IO::WaitWritable, Errno::EINPROGRESS
rescue => e
    close e
end

#_read ⇒ Object

First checks if there’s a pending SSL #accept operation when this connection is a server handler which has been passed an accepted plaintext connection.



127
128
129
130
131
132
 
# File 'lib/raktr/connection/tls.rb', line 127

def _read
    return ssl_accept if accept?

    super
rescue OpenSSL::SSL::SSLErrorWaitReadable
end

#_write(*args) ⇒ Object

First checks if there’s a pending SSL #accept operation when this connection is a server handler which has been passed an accepted plaintext connection.



116
117
118
119
120
 
# File 'lib/raktr/connection/tls.rb', line 116

def _write( *args )
    return ssl_accept if accept?

    super( *args )
end

#start_tls(options = {}) ⇒ Object

Converts the Raktr::Connection#socket to an SSL one.

Parameters:

  • options (Hash) (defaults to: {})
  • [String] (Hash) —

    a customizable set of options



26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
 
# File 'lib/raktr/connection/tls.rb', line 26

def start_tls( options = {} )
    if @socket.is_a? OpenSSL::SSL::SSLSocket
        @ssl_context = @socket.context
        return
    end

    @ssl_context = OpenSSL::SSL::SSLContext.new
    @ssl_context.verify_mode = OpenSSL::SSL::VERIFY_NONE

    tls = @tls || options
    if tls
        certificate = tls[:certificate]
        private_key = tls[:private_key]
        public_key  = tls[:public_key]
        ca          = tls[:ca]
    end

    if certificate && private_key && public_key && ca
        # Cache PEM *contents* — caching File handles caused EOF on the
        # second read of the same path.
        CERTIFICATES[certificate] ||= File.read( certificate )
        @ssl_context.cert =
            OpenSSL::X509::Certificate.new( CERTIFICATES[certificate] )

        CERTIFICATES[private_key] ||= File.read( private_key )
        @ssl_context.key  =
            OpenSSL::PKey::RSA.new( CERTIFICATES[private_key] )

        CERTIFICATES[public_key] ||= File.read( public_key )
        @ssl_context.cert.public_key =
          OpenSSL::PKey::RSA.new( CERTIFICATES[public_key] )

        @ssl_context.ca_file     = ca
        @ssl_context.verify_mode =
            OpenSSL::SSL::VERIFY_PEER | OpenSSL::SSL::VERIFY_FAIL_IF_NO_PEER_CERT

    elsif @role == :server
        @ssl_context.key             = OpenSSL::PKey::RSA.new( 2048 )
        @ssl_context.cert            = OpenSSL::X509::Certificate.new
        @ssl_context.cert.subject    = OpenSSL::X509::Name.new( [['CN', 'localhost']] )
        @ssl_context.cert.issuer     = @ssl_context.cert.subject
        @ssl_context.cert.public_key = @ssl_context.key
        @ssl_context.cert.not_before = Time.now
        @ssl_context.cert.not_after  = Time.now + 60 * 60 * 24
        @ssl_context.cert.version    = 2
        @ssl_context.cert.serial     = 1

        @ssl_context.cert.sign( @ssl_context.key, OpenSSL::Digest::SHA1.new )
    end

    if @role == :server
        @socket = OpenSSL::SSL::SSLServer.new( @socket, @ssl_context )
    else
        @socket = OpenSSL::SSL::SSLSocket.new( @socket, @ssl_context )
        @socket.sync_close = true

        # We've switched to SSL, a connection needs to be re-established
        # via the SSL handshake.
        @connected         = false

        _connect if unix?
    end

    @socket
end