Allow setSecure() to be called on an existing connection, to support STARTTLS handshaking

node.js starttls

From 5a42382681452a6fe94c2224cd7a66047f417a96 Mon Sep 17 00:00:00 2001
From: Rhys Jones <rhys@wave.to>
Date: Tue, 23 Feb 2010 22:27:35 +0000
Subject: [PATCH] Allow setSecure() to be called on an existing connection, to support STARTTLS handshaking

---
 deps/evcom/evcom.c |   22 ++++++++++++++++++++++
 deps/evcom/evcom.h |    1 +
 src/node_net.cc    |    3 +++
 3 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/deps/evcom/evcom.c b/deps/evcom/evcom.c
index 1ee02a1..82e2811 100644
--- a/deps/evcom/evcom.c
+++ b/deps/evcom/evcom.c
@@ -1317,6 +1317,28 @@ evcom_stream_connect (evcom_stream *stream, struct sockaddr *address)
   return 0;
 }
 
+int
+evcom_stream_starttls (evcom_stream *stream)
+{
+#if EVCOM_HAVE_GNUTLS
+  if (SECURE(stream)) {
+    gnutls_transport_set_lowat(stream->session, 0);
+    gnutls_transport_set_push_function(stream->session, nosigpipe_push);
+    gnutls_transport_set_pull_function(stream->session, pull);
+    gnutls_transport_set_ptr2(stream->session, stream, stream);
+
+    stream->send_action = stream__handshake;
+    stream->recv_action = stream__handshake;
+
+    ev_io_start(D_LOOP_(stream) &stream->write_watcher);
+    ev_io_start(D_LOOP_(stream) &stream->read_watcher);
+  } 
+#endif
+
+  return OKAY;
+}
+
+
 int evcom_stream_pair (evcom_stream *a, evcom_stream *b)
 {
   int sv[2];
diff --git a/deps/evcom/evcom.h b/deps/evcom/evcom.h
index fd03a5b..83b44e9 100644
--- a/deps/evcom/evcom.h
+++ b/deps/evcom/evcom.h
@@ -186,6 +186,7 @@ void evcom_stream_init          (evcom_stream *);
 
  int evcom_stream_pair          (evcom_stream *a, evcom_stream *b);
  int evcom_stream_connect       (evcom_stream *, struct sockaddr *address);
+ int evcom_stream_starttls     (evcom_stream *);
 void evcom_stream_assign_fds    (evcom_stream *, int recvfd, int sendfd);
 
 void evcom_stream_attach        (EV_P_ evcom_stream *);
diff --git a/src/node_net.cc b/src/node_net.cc
index da43517..5141944 100644
--- a/src/node_net.cc
+++ b/src/node_net.cc
@@ -940,6 +940,9 @@ void init_tls_session(evcom_stream* stream_,
                          credentials);
   evcom_stream_set_secure_session(stream_,
                                   stream_->session);
+  if (stream_->flags & EVCOM_CONNECTED) {
+    evcom_stream_starttls(stream_);
+  }
 }
 
 
-- 
1.6.4.4