From f9e8e8856ab34cd054cd575e0a8a345ff1d521eb Mon Sep 17 00:00:00 2001
From: cjihrig <cjihrig@gmail.com>
Date: Sat, 3 Nov 2018 11:24:50 -0400
Subject: [PATCH] src: fix Get() usage in tls_wrap.cc

Backport-PR-URL: https://github.com/nodejs/node/pull/27967
PR-URL: https://github.com/nodejs/node/pull/24060
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
---
 src/tls_wrap.cc | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/tls_wrap.cc b/src/tls_wrap.cc
index 1c7c32fb8f979a..7dcf9d5f8a063e 100644
--- a/src/tls_wrap.cc
+++ b/src/tls_wrap.cc
@@ -221,8 +221,10 @@ void TLSWrap::SSLInfoCallback(const SSL* ssl_, int where, int ret) {
   Local<Object> object = c->object();
 
   if (where & SSL_CB_HANDSHAKE_START) {
-    Local<Value> callback = object->Get(env->onhandshakestart_string());
-    if (callback->IsFunction()) {
+    Local<Value> callback;
+
+    if (object->Get(env->context(), env->onhandshakestart_string())
+          .ToLocal(&callback) && callback->IsFunction()) {
       Local<Value> argv[] = { env->GetNow() };
       c->MakeCallback(callback.As<Function>(), arraysize(argv), argv);
     }
@@ -232,9 +234,12 @@ void TLSWrap::SSLInfoCallback(const SSL* ssl_, int where, int ret) {
   // sending HelloRequest in OpenSSL-1.1.1.
   // We need to check whether this is in a renegotiation state or not.
   if (where & SSL_CB_HANDSHAKE_DONE && !SSL_renegotiate_pending(ssl)) {
+    Local<Value> callback;
+
     c->established_ = true;
-    Local<Value> callback = object->Get(env->onhandshakedone_string());
-    if (callback->IsFunction()) {
+
+    if (object->Get(env->context(), env->onhandshakedone_string())
+          .ToLocal(&callback) && callback->IsFunction()) {
       c->MakeCallback(callback.As<Function>(), 0, nullptr);
     }
   }
@@ -845,7 +850,10 @@ int TLSWrap::SelectSNIContextCallback(SSL* s, int* ad, void* arg) {
 
   // Call the SNI callback and use its return value as context
   Local<Object> object = p->object();
-  Local<Value> ctx = object->Get(env->sni_context_string());
+  Local<Value> ctx;
+
+  if (!object->Get(env->context(), env->sni_context_string()).ToLocal(&ctx))
+    return SSL_TLSEXT_ERR_NOACK;
 
   // Not an object, probably undefined or null
   if (!ctx->IsObject())