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Add additional safety checks to avoid acting on non-existent objects (#1057)

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This commit is contained in:
Nathanaël Lécaudé
2016-11-17 16:04:38 -05:00
committed by Dave Conway-Jones
parent 361ff315e9
commit eef59fd40e
1 changed files with 10 additions and 6 deletions
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10
nodes/core/io/31-tcpin.js
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@@ -444,7 +444,7 @@ module.exports = function(RED) {
//node.log(RED._("tcpin.errors.client-connected"));
node.status({fill:"green",shape:"dot",text:"common.status.connected"});
node.connected = true;
if (clients[connection_id].client) {
if (clients[connection_id] && clients[connection_id].client) {
clients[connection_id].client.write(clients[connection_id].msg.payload);
}
});
@@ -455,9 +455,11 @@ module.exports = function(RED) {
clients[connection_id].client.on('data', function(data) {
if (node.out == "sit") { // if we are staying connected just send the buffer
if (clients[connection_id]) {
clients[connection_id].msg.payload = data;
node.send(clients[connection_id].msg);
}
}
else if (node.splitc === 0) {
clients[connection_id].msg.payload = data;
node.send(clients[connection_id].msg);
@@ -523,7 +525,9 @@ module.exports = function(RED) {
//console.log("END");
node.connected = false;
node.status({fill:"grey",shape:"ring",text:"common.status.disconnected"});
if (clients[connection_id] && clients[connection_id].client) {
clients[connection_id].client = null;
}
});
clients[connection_id].client.on('close', function() {
@@ -537,7 +541,7 @@ module.exports = function(RED) {
node.connected = false;
node.status({fill:"red",shape:"ring",text:"common.status.error"});
node.error(RED._("tcpin.errors.connect-fail"),msg);
if (clients[connection_id].client) {
if (clients[connection_id] && clients[connection_id].client) {
clients[connection_id].client.destroy();
delete clients[connection_id];
}
@@ -547,7 +551,7 @@ module.exports = function(RED) {
node.connected = false;
node.status({fill:"grey",shape:"dot",text:"tcpin.errors.connect-timeout"});
//node.warn(RED._("tcpin.errors.connect-timeout"));
if (clients[connection_id].client) {
if (clients[connection_id] && clients[connection_id].client) {
clients[connection_id].client.connect(port, host, function() {
node.connected = true;
node.status({fill:"green",shape:"dot",text:"common.status.connected"});