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Class: OpenSSL::SSL::SSLSocket

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
Inherits: Object
Defined in: ext/openssl/ossl_ssl.c,
ext/openssl/lib/openssl/ssl.rb

Constant Summary

::OpenSSL::Buffering - Included

BLOCK_SIZE

Class Method Summary

Instance Attribute Summary

SocketForwarder - Included

::OpenSSL::Buffering - Included

#eof

Alias for Buffering#eof?.

#sync

The “sync mode” of the SSLSocket.

Instance Method Summary

SocketForwarder - Included

::OpenSSL::Buffering - Included

#<<

Writes s to the stream.

#close

Closes the SSLSocket and flushes any unwritten data.

#each

Executes the block for every line in the stream where lines are separated by eol.

#each_byte

Calls the given block once for each byte in the stream.

#each_line

Alias for Buffering#each.

#eof?

Returns true if the stream is at file which means there is no more data to be read.

#flush

Flushes buffered data to the SSLSocket.

#getc

Reads one character from the stream.

#gets

Reads the next “line” from the stream.

#initialize

Creates an instance of OpenSSL’s buffering ::IO module.

#print

Writes args to the stream.

#printf

Formats and writes to the stream converting parameters under control of the format string.

#puts

Writes args to the stream along with a record separator.

#read

Reads size bytes from the stream.

#read_nonblock

Reads at most maxlen bytes in the non-blocking manner.

#readchar

Reads a one-character string from the stream.

#readline

Reads a line from the stream which is separated by eol.

#readlines

Reads lines from the stream which are separated by eol.

#readpartial

Reads at most maxlen bytes from the stream.

#ungetc

Pushes character c back onto the stream such that a subsequent buffered character read will return it.

#write

Writes s to the stream.

#write_nonblock

Writes s in the non-blocking manner.

#consume_rbuff

Consumes size bytes from the buffer.

#do_write

Writes s to the buffer.

#fill_rbuff

Fills the buffer from the underlying SSLSocket.

Constructor Details

.new

[ GitHub ]

#new(io) ⇒ SSLSocket #new(io, ctx) ⇒ SSLSocket

Creates a new ::OpenSSL::SSL socket from io which must be a real ::IO object (not an IO-like object that responds to read/write).

If ctx is provided the ::OpenSSL::SSL Sockets initial params will be taken from the context.

The ::OpenSSL::Buffering module provides additional ::IO methods.

This method will freeze the SSLContext if one is provided; however, session management is still allowed in the frozen SSLContext.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 1554

static VALUE
ossl_ssl_initialize(int argc, VALUE *argv, VALUE self)
{
    VALUE io, v_ctx, verify_cb;
    SSL *ssl;
    SSL_CTX *ctx;

    TypedData_Get_Struct(self, SSL, &ossl_ssl_type, ssl);
    if (ssl)
	ossl_raise(eSSLError, "SSL already initialized");

    if (rb_scan_args(argc, argv, "11", &io, &v_ctx) == 1)
	v_ctx = rb_funcall(cSSLContext, rb_intern("new"), 0);

    GetSSLCTX(v_ctx, ctx);
    rb_ivar_set(self, id_i_context, v_ctx);
    ossl_sslctx_setup(v_ctx);

    if (rb_respond_to(io, rb_intern("nonblock=")))
	rb_funcall(io, rb_intern("nonblock="), 1, Qtrue);
    rb_ivar_set(self, id_i_io, io);

    ssl = SSL_new(ctx);
    if (!ssl)
	ossl_raise(eSSLError, NULL);
    RTYPEDDATA_DATA(self) = ssl;

    SSL_set_ex_data(ssl, ossl_ssl_ex_ptr_idx, (void *)self);
    SSL_set_info_callback(ssl, ssl_info_cb);
    verify_cb = rb_attr_get(v_ctx, id_i_verify_callback);
    SSL_set_ex_data(ssl, ossl_ssl_ex_vcb_idx, (void *)verify_cb);

    rb_call_super(0, NULL);

    return self;
}

Instance Attribute Details

#context (readonly)

The SSLContext object used in this connection.

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 358

attr_reader :context

#hostname (rw)

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 351

attr_reader :hostname

#hostname=(hostname) ⇒ hostname (rw)

Sets the server hostname used for SNI. This needs to be set before #connect.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2244

static VALUE
ossl_ssl_set_hostname(VALUE self, VALUE arg)
{
    SSL *ssl;
    char *hostname = NULL;

    GetSSL(self, ssl);

    if (!NIL_P(arg))
	hostname = StringValueCStr(arg);

    if (!SSL_set_tlsext_host_name(ssl, hostname))
	ossl_raise(eSSLError, NULL);

    /* for SSLSocket#hostname */
    rb_ivar_set(self, id_i_hostname, arg);

    return arg;
}

#io (readonly) Also known as: #to_io

The underlying ::IO object.

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 354

attr_reader :io

#sessionaSession (rw)

Returns the SSLSession object currently used, or nil if the session is not established.

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 405

def session
  SSL::Session.new(self)
rescue SSL::Session::SessionError
  nil
end

#session=(session) ⇒ session (rw)

Sets the Session to be used when the connection is established.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2222

static VALUE
ossl_ssl_set_session(VALUE self, VALUE arg1)
{
    SSL *ssl;
    SSL_SESSION *sess;

    GetSSL(self, ssl);
    GetSSLSession(arg1, sess);

    if (SSL_set_session(ssl, sess) != 1)
        ossl_raise(eSSLError, "SSL_set_session");

    return arg1;
}

#session_reused?Boolean (readonly)

Returns true if a reused session was negotiated during the handshake.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2206

static VALUE
ossl_ssl_session_reused(VALUE self)
{
    SSL *ssl;

    GetSSL(self, ssl);

    return SSL_session_reused(ssl) ? Qtrue : Qfalse;
}

#sync_close (rw)

Whether to close the underlying socket as well, when the SSL/TLS connection is shut down. This defaults to false.

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# File 'ext/openssl/lib/openssl/ssl.rb', line 362

attr_accessor :sync_close

#to_io (readonly)

Alias for #io.

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# File 'ext/openssl/lib/openssl/ssl.rb', line 355

alias :to_io :io

#using_anon_cipher?Boolean (readonly, private)

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 413

def using_anon_cipher?
  ctx = OpenSSL::SSL::SSLContext.new
  ctx.ciphers = "aNULL"
  ctx.ciphers.include?(cipher)
end

Instance Method Details

#acceptself

Waits for a SSL/TLS client to initiate a handshake. The handshake may be started after unencrypted data has been sent over the socket.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 1765

static VALUE
ossl_ssl_accept(VALUE self)
{
    ossl_ssl_setup(self);

    return ossl_start_ssl(self, SSL_accept, "SSL_accept", Qfalse);
}

#accept_nonblock([options]) ⇒ self

Initiates the SSL/TLS handshake as a server in non-blocking manner.

# emulates blocking accept
begin
  ssl.accept_nonblock
rescue IO::WaitReadable
  IO.select([s2])
  retry
rescue IO::WaitWritable
  IO.select(nil, [s2])
  retry
end

By specifying a keyword argument exception to false, you can indicate that accept_nonblock should not raise an ::IO::WaitReadable or ::IO::WaitWritable exception, but return the symbol :wait_readable or :wait_writable instead.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 1795

static VALUE
ossl_ssl_accept_nonblock(int argc, VALUE *argv, VALUE self)
{
    VALUE opts;

    rb_scan_args(argc, argv, "0:", &opts);
    ossl_ssl_setup(self);

    return ossl_start_ssl(self, SSL_accept, "SSL_accept", opts);
}

#alpn_protocolString | nil

Returns the ALPN protocol string that was finally selected by the server during the handshake.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2339

static VALUE
ossl_ssl_alpn_protocol(VALUE self)
{
    SSL *ssl;
    const unsigned char *out;
    unsigned int outlen;

    GetSSL(self, ssl);

    SSL_get0_alpn_selected(ssl, &out, &outlen);
    if (!outlen)
	return Qnil;
    else
	return rb_str_new((const char *) out, outlen);
}

#cert ⇒ cert?

The X509 certificate for this socket endpoint.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2051

static VALUE
ossl_ssl_get_cert(VALUE self)
{
    SSL *ssl;
    X509 *cert = NULL;

    GetSSL(self, ssl);

    /*
     * Is this OpenSSL bug? Should add a ref?
     * TODO: Ask for.
     */
    cert = SSL_get_certificate(ssl); /* NO DUPs => DON'T FREE. */

    if (!cert) {
        return Qnil;
    }
    return ossl_x509_new(cert);
}

#ciphernil, ...

Returns the cipher suite actually used in the current session, or nil if no session has been established.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2150

static VALUE
ossl_ssl_get_cipher(VALUE self)
{
    SSL *ssl;
    const SSL_CIPHER *cipher;

    GetSSL(self, ssl);
    cipher = SSL_get_current_cipher(ssl);
    return cipher ? ossl_ssl_cipher_to_ary(cipher) : Qnil;
}

#client_caArray, ...

Returns the list of client CAs. Please note that in contrast to SSLContext#client_ca= no array of ::OpenSSL::X509::Certificate is returned but ::OpenSSL::X509::Name instances of the CA’s subject distinguished name.

In server mode, returns the list set by SSLContext#client_ca=. In client mode, returns the list of client CAs sent from the server.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2294

static VALUE
ossl_ssl_get_client_ca_list(VALUE self)
{
    SSL *ssl;
    STACK_OF(X509_NAME) *ca;

    GetSSL(self, ssl);

    ca = SSL_get_client_CA_list(ssl);
    return ossl_x509name_sk2ary(ca);
}

#client_cert_cb (private)

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 419

def client_cert_cb
  @context.client_cert_cb
end

#connectself

Initiates an SSL/TLS handshake with a server. The handshake may be started after unencrypted data has been sent over the socket.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 1717

static VALUE
ossl_ssl_connect(VALUE self)
{
    ossl_ssl_setup(self);

    return ossl_start_ssl(self, SSL_connect, "SSL_connect", Qfalse);
}

#connect_nonblock([options]) ⇒ self

Initiates the SSL/TLS handshake as a client in non-blocking manner.

# emulates blocking connect
begin
  ssl.connect_nonblock
rescue IO::WaitReadable
  IO.select([s2])
  retry
rescue IO::WaitWritable
  IO.select(nil, [s2])
  retry
end

By specifying a keyword argument exception to false, you can indicate that connect_nonblock should not raise an ::IO::WaitReadable or ::IO::WaitWritable exception, but return the symbol :wait_readable or :wait_writable instead.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 1747

static VALUE
ossl_ssl_connect_nonblock(int argc, VALUE *argv, VALUE self)
{
    VALUE opts;
    rb_scan_args(argc, argv, "0:", &opts);

    ossl_ssl_setup(self);

    return ossl_start_ssl(self, SSL_connect, "SSL_connect", opts);
}

#npn_protocolString | nil

Returns the protocol string that was finally selected by the client during the handshake.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2314

static VALUE
ossl_ssl_npn_protocol(VALUE self)
{
    SSL *ssl;
    const unsigned char *out;
    unsigned int outlen;

    GetSSL(self, ssl);

    SSL_get0_next_proto_negotiated(ssl, &out, &outlen);
    if (!outlen)
	return Qnil;
    else
	return rb_str_new((const char *) out, outlen);
}

#peer_certcert?

The X509 certificate for this socket’s peer.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2077

static VALUE
ossl_ssl_get_peer_cert(VALUE self)
{
    SSL *ssl;
    X509 *cert = NULL;
    VALUE obj;

    GetSSL(self, ssl);

    cert = SSL_get_peer_certificate(ssl); /* Adds a ref => Safe to FREE. */

    if (!cert) {
        return Qnil;
    }
    obj = ossl_x509_new(cert);
    X509_free(cert);

    return obj;
}

#peer_cert_chainArray, ...

The X509 certificate chain for this socket’s peer.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2103

static VALUE
ossl_ssl_get_peer_cert_chain(VALUE self)
{
    SSL *ssl;
    STACK_OF(X509) *chain;
    X509 *cert;
    VALUE ary;
    int i, num;

    GetSSL(self, ssl);

    chain = SSL_get_peer_cert_chain(ssl);
    if(!chain) return Qnil;
    num = sk_X509_num(chain);
    ary = rb_ary_new2(num);
    for (i = 0; i < num; i++){
	cert = sk_X509_value(chain, i);
	rb_ary_push(ary, ossl_x509_new(cert));
    }

    return ary;
}

#pendingInteger

The number of bytes that are immediately available for reading.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2190

static VALUE
ossl_ssl_pending(VALUE self)
{
    SSL *ssl;

    GetSSL(self, ssl);

    return INT2NUM(SSL_pending(ssl));
}

#post_connection_check(hostname) ⇒ true

Perform hostname verification following RFC 6125.

This method MUST be called after calling #connect to ensure that the hostname of a remote peer has been verified.

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 384

def post_connection_check(hostname)
  if peer_cert.nil?
    msg = "Peer verification enabled, but no certificate received."
    if using_anon_cipher?
      msg += " Anonymous cipher suite #{cipher[0]} was negotiated. " \
             "Anonymous suites must be disabled to use peer verification."
    end
    raise SSLError, msg
  end

  unless OpenSSL::SSL.verify_certificate_identity(peer_cert, hostname)
    raise SSLError, "hostname \"#{hostname}\" does not match the server certificate"
  end
  return true
end

#session_get_cb (private)

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 435

def session_get_cb
  @context.session_get_cb
end

#session_new_cb (private)

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 431

def session_new_cb
  @context.session_new_cb
end

#ssl_versionString

Returns a String representing the SSL/TLS version that was negotiated for the connection, for example “TLSv1.2”.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2133

static VALUE
ossl_ssl_get_version(VALUE self)
{
    SSL *ssl;

    GetSSL(self, ssl);

    return rb_str_new2(SSL_get_version(ssl));
}

#stateString

A description of the current connection state. This is for diagnostic purposes only.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2168

static VALUE
ossl_ssl_get_state(VALUE self)
{
    SSL *ssl;
    VALUE ret;

    GetSSL(self, ssl);

    ret = rb_str_new2(SSL_state_string(ssl));
    if (ruby_verbose) {
        rb_str_cat2(ret, ": ");
        rb_str_cat2(ret, SSL_state_string_long(ssl));
    }
    return ret;
}

#stopnil (private)

Sends “close notify” to the peer and tries to shut down the ::OpenSSL::SSL connection gracefully.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2020

static VALUE
ossl_ssl_stop(VALUE self)
{
    SSL *ssl;
    int ret;

    GetSSL(self, ssl);
    if (!ssl_started(ssl))
	return Qnil;
    ret = SSL_shutdown(ssl);
    if (ret == 1) /* Have already received close_notify */
	return Qnil;
    if (ret == 0) /* Sent close_notify, but we don't wait for reply */
	return Qnil;

    /*
     * XXX: Something happened. Possibly it failed because the underlying socket
     * is not writable/readable, since it is in non-blocking mode. We should do
     * some proper error handling using SSL_get_error() and maybe retry, but we
     * can't block here. Give up for now.
     */
    ossl_clear_error();
    return Qnil;
}

#sysclosenil

Sends “close notify” to the peer and tries to shut down the ::OpenSSL::SSL connection gracefully.

If sync_close is set to true, the underlying ::IO is also closed.

[ GitHub ]

  
# File 'ext/openssl/lib/openssl/ssl.rb', line 371

def sysclose
  return if closed?
  stop
  io.close if sync_close
end

#sysread(length) ⇒ String #sysread(length, buffer) ⇒ buffer

Reads length bytes from the ::OpenSSL::SSL connection. If a pre-allocated buffer is provided the data will be written into it.

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# File 'ext/openssl/ossl_ssl.c', line 1902

static VALUE
ossl_ssl_read(int argc, VALUE *argv, VALUE self)
{
    return ossl_ssl_read_internal(argc, argv, self, 0);
}

#sysread_nonblock(length) ⇒ String (private) #sysread_nonblock(length, buffer) ⇒ buffer #sysread_nonblock(length[, buffer [, opts]) ⇒ buffer

A non-blocking version of #sysread. Raises an SSLError if reading would block. If “exception: false” is passed, this method returns a symbol of :wait_readable, :wait_writable, or nil, rather than raising an exception.

Reads length bytes from the ::OpenSSL::SSL connection. If a pre-allocated buffer is provided the data will be written into it.

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# File 'ext/openssl/ossl_ssl.c', line 1921

static VALUE
ossl_ssl_read_nonblock(int argc, VALUE *argv, VALUE self)
{
    return ossl_ssl_read_internal(argc, argv, self, 1);
}

#syswrite(string) ⇒ Integer

Writes string to the ::OpenSSL::SSL connection.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 1990

static VALUE
ossl_ssl_write(VALUE self, VALUE str)
{
    return ossl_ssl_write_internal(self, str, Qfalse);
}

#syswrite_nonblock(string) ⇒ Integer (private)

Writes string to the ::OpenSSL::SSL connection in a non-blocking manner. Raises an SSLError if writing would block.

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# File 'ext/openssl/ossl_ssl.c', line 2003

static VALUE
ossl_ssl_write_nonblock(int argc, VALUE *argv, VALUE self)
{
    VALUE str, opts;

    rb_scan_args(argc, argv, "1:", &str, &opts);

    return ossl_ssl_write_internal(self, str, opts);
}

#tmp_dh_callback (private)

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# File 'ext/openssl/lib/openssl/ssl.rb', line 423

def tmp_dh_callback
  @context.tmp_dh_callback || OpenSSL::SSL::SSLContext::DEFAULT_TMP_DH_CALLBACK
end

#tmp_ecdh_callback (private)

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# File 'ext/openssl/lib/openssl/ssl.rb', line 427

def tmp_ecdh_callback
  @context.tmp_ecdh_callback
end

#tmp_keyPKey?

Returns the ephemeral key used in case of forward secrecy cipher.

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# File 'ext/openssl/ossl_ssl.c', line 2363

static VALUE
ossl_ssl_tmp_key(VALUE self)
{
    SSL *ssl;
    EVP_PKEY *key;

    GetSSL(self, ssl);
    if (!SSL_get_server_tmp_key(ssl, &key))
	return Qnil;
    return ossl_pkey_new(key);
}

#verify_resultInteger

Returns the result of the peer certificates verification. See verify(1) for error values and descriptions.

If no peer certificate was presented X509_V_OK is returned.

[ GitHub ]

  
# File 'ext/openssl/ossl_ssl.c', line 2273

static VALUE
ossl_ssl_get_verify_result(VALUE self)
{
    SSL *ssl;

    GetSSL(self, ssl);

    return INT2NUM(SSL_get_verify_result(ssl));
}