tls: emit `clientError` on early socket close

fix #6903

lib/_stream_writable.js

@@ -115,6 +115,9 @@ function WritableState(options, stream) {
   // emit prefinish if the only thing we're waiting for is _write cbs
   // This is relevant for synchronous Transform streams
   this.prefinished = false;
+
+  // Internal, used in net.js and _tls_wrap.js
+  this._errorEmitted = false;
 }
 
 function Writable(options) {
@@ -272,6 +275,7 @@ function onwriteError(stream, state, sync, er, cb) {
   }
 
   stream.emit('error', er);
+  stream._errorEmitted = true;
 }
 
 function onwriteStateUpdate(state) {

lib/_tls_wrap.js

@@ -235,6 +235,10 @@ TLSSocket.prototype._init = function(socket) {
   }
 
   this.ssl.onerror = function(err) {
+    if (self._errorEmitted)
+      return;
+    self._errorEmitted = true;
+
     // Destroy socket if error happened before handshake's finish
     if (!this._secureEstablished) {
       self._tlsError(err);
@@ -549,9 +553,22 @@ function Server(/* [options], listener */) {
         self.emit('secureConnection', socket);
     });
 
+    var errorEmitted = false;
+    socket.on('close', function() {
+      // Emit ECONNRESET
+      if (!socket._controlReleased && !errorEmitted) {
+        errorEmitted = true;
+        var connReset = new Error('socket hang up');
+        connReset.code = 'ECONNRESET';
+        self.emit('clientError', connReset, socket);
+      }
+    });
+
     socket.on('_tlsError', function(err) {
-      if (!socket._controlReleased)
+      if (!socket._controlReleased && !errorEmitted) {
+        errorEmitted = true;
         self.emit('clientError', err, socket);
+      }
     });
   });
 

lib/net.js

@@ -113,7 +113,6 @@ exports._normalizeConnectArgs = normalizeConnectArgs;
 // called when creating new Socket, or when re-using a closed Socket
 function initSocketHandle(self) {
   self.destroyed = false;
-  self.errorEmitted = false;
   self.bytesRead = 0;
   self._bytesDispatched = 0;
 
@@ -429,11 +428,11 @@ Socket.prototype._destroy = function(exception, cb) {
 
   function fireErrorCallbacks() {
     if (cb) cb(exception);
-    if (exception && !self.errorEmitted) {
+    if (exception && !self._errorEmitted) {
       process.nextTick(function() {
         self.emit('error', exception);
       });
-      self.errorEmitted = true;
+      self._errorEmitted = true;
     }
   };
 

test/simple/test-tls-econnreset.js

@@ -0,0 +1,94 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+if (!process.versions.openssl) {
+  console.error('Skipping because node compiled without OpenSSL.');
+  process.exit(0);
+}
+
+var common = require('../common');
+var assert = require('assert');
+var tls = require('tls');
+
+var cacert = '-----BEGIN CERTIFICATE-----\n' +
+  'MIIBxTCCAX8CAnXnMA0GCSqGSIb3DQEBBQUAMH0xCzAJBgNVBAYTAlVTMQswCQYD\n' +
+  'VQQIEwJDQTEWMBQGA1UEBxMNU2FuIEZyYW5jaXNjbzEZMBcGA1UEChMQU3Ryb25n\n' +
+  'TG9vcCwgSW5jLjESMBAGA1UECxMJU3Ryb25nT3BzMRowGAYDVQQDExFjYS5zdHJv\n' +
+  'bmdsb29wLmNvbTAeFw0xNDAxMTcyMjE1MDdaFw00MTA2MDMyMjE1MDdaMH0xCzAJ\n' +
+  'BgNVBAYTAlVTMQswCQYDVQQIEwJDQTEWMBQGA1UEBxMNU2FuIEZyYW5jaXNjbzEZ\n' +
+  'MBcGA1UEChMQU3Ryb25nTG9vcCwgSW5jLjESMBAGA1UECxMJU3Ryb25nT3BzMRow\n' +
+  'GAYDVQQDExFjYS5zdHJvbmdsb29wLmNvbTBMMA0GCSqGSIb3DQEBAQUAAzsAMDgC\n' +
+  'MQDKbQ6rIR5t1q1v4Ha36jrq0IkyUohy9EYNvLnXUly1PGqxby0ILlAVJ8JawpY9\n' +
+  'AVkCAwEAATANBgkqhkiG9w0BAQUFAAMxALA1uS4CqQXRSAyYTfio5oyLGz71a+NM\n' +
+  '+0AFLBwh5AQjhGd0FcenU4OfHxyDEOJT/Q==\n' +
+  '-----END CERTIFICATE-----\n';
+
+var cert = '-----BEGIN CERTIFICATE-----\n' +
+  'MIIBfDCCATYCAgQaMA0GCSqGSIb3DQEBBQUAMH0xCzAJBgNVBAYTAlVTMQswCQYD\n' +
+  'VQQIEwJDQTEWMBQGA1UEBxMNU2FuIEZyYW5jaXNjbzEZMBcGA1UEChMQU3Ryb25n\n' +
+  'TG9vcCwgSW5jLjESMBAGA1UECxMJU3Ryb25nT3BzMRowGAYDVQQDExFjYS5zdHJv\n' +
+  'bmdsb29wLmNvbTAeFw0xNDAxMTcyMjE1MDdaFw00MTA2MDMyMjE1MDdaMBkxFzAV\n' +
+  'BgNVBAMTDnN0cm9uZ2xvb3AuY29tMEwwDQYJKoZIhvcNAQEBBQADOwAwOAIxAMfk\n' +
+  'I0LWU15pPUwIQNMnRVhhOibi0TQmAau8FBtgwEfGK01WpfGUaJr1a41K8Uq7xwID\n' +
+  'AQABoxkwFzAVBgNVHREEDjAMhwQAAAAAhwR/AAABMA0GCSqGSIb3DQEBBQUAAzEA\n' +
+  'cGpYrhkrb7mIh9DNhV0qp7pGjqBzlHqB7KQXw2luLDp//6dyHBMexDCQznkhZKRU\n' +
+  '-----END CERTIFICATE-----\n';
+
+var key = '-----BEGIN RSA PRIVATE KEY-----\n' +
+  'MIH0AgEAAjEAx+QjQtZTXmk9TAhA0ydFWGE6JuLRNCYBq7wUG2DAR8YrTVal8ZRo\n' +
+  'mvVrjUrxSrvHAgMBAAECMBCGccvSwC2r8Z9Zh1JtirQVxaL1WWpAQfmVwLe0bAgg\n' +
+  '/JWMU/6hS36TsYyZMxwswQIZAPTAfht/zDLb7Hwgu2twsS1Ra9w/yyvtlwIZANET\n' +
+  '26votwJAHK1yUrZGA5nnp5qcmQ/JUQIZAII5YV/UUZvF9D/fUplJ7puENPWNY9bN\n' +
+  'pQIZAMMwxuS3XiO7two2sQF6W+JTYyX1DPCwAQIZAOYg1TvEGT38k8e8jygv8E8w\n' +
+  'YqrWTeQFNQ==\n' +
+  '-----END RSA PRIVATE KEY-----\n';
+
+var ca = [ cert, cacert ];
+
+var clientError = null;
+var connectError = null;
+
+var server = tls.createServer({ ca: ca, cert: cert, key: key }, function(conn) {
+  throw 'unreachable';
+}).on('clientError', function(err, conn) {
+  assert(!clientError && conn);
+  clientError = err;
+}).listen(common.PORT, function() {
+  var options = {
+    ciphers: 'AES128-GCM-SHA256',
+    port: common.PORT,
+    ca: ca
+  };
+  tls.connect(options).on('error', function(err) {
+    assert(!connectError);
+
+    connectError = err;
+    this.destroy();
+    server.close();
+  });
+});
+
+process.on('exit', function() {
+  assert(clientError);
+  assert(connectError);
+  assert(/socket hang up/.test(clientError.message));
+  assert(/ECONNRESET/.test(clientError.code));
+});