Add check that node sends object rather than primitive type

Fixes #3876

packages/node_modules/@node-red/editor-client/locales/ja/editor.json

@@ -935,11 +935,11 @@
         "errors": {
             "invalid-expr": "不正なJSONata式:\n  __message__",
             "invalid-msg": "不正なJSONメッセージ例:\n  __message__",
-            "context-unsupported": "$flowContext や $globalContextの\nコンテキスト機能をテストできません",
+            "context-unsupported": "$flowContext や $globalContextの\nコンテキスト関数をテストできません",
             "env-unsupported": "$env関数はテストできません",
             "moment-unsupported": "$moment関数はテストできません",
             "clone-unsupported": "$clone関数はテストできません",
-            "eval": "表現評価エラー:\n  __message__"
+            "eval": "式評価エラー:\n  __message__"
         }
     },
     "monaco": {

packages/node_modules/@node-red/nodes/core/function/10-function.html

@@ -451,11 +451,13 @@
             tabs.activateTab("func-tab-body");
 
             $( "#node-input-outputs" ).spinner({
-                min:0,
+                min: 0,
+                max: 500,
                 change: function(event, ui) {
-                    var value = this.value;
-                    if (!value.match(/^\d+$/)) { value = 1;  }
-                    else if (value < this.min) { value = this.min; }
+                    var value = parseInt(this.value);
+                    value = isNaN(value) ? 1 : value;
+                    value = Math.max(value, parseInt($(this).attr("aria-valuemin")));
+                    value = Math.min(value, parseInt($(this).attr("aria-valuemax")));
                     if (value !== this.value) { $(this).spinner("value", value); }
                 }
             });

packages/node_modules/@node-red/nodes/core/network/21-httpin.js

@@ -282,7 +282,7 @@ module.exports = function(RED) {
         RED.nodes.createNode(this,n);
         var node = this;
         this.headers = n.headers||{};
-        this.statusCode = n.statusCode;
+        this.statusCode = parseInt(n.statusCode);
         this.on("input",function(msg,_send,done) {
             if (msg.res) {
                 var headers = RED.util.cloneMessage(node.headers);
@@ -323,7 +323,7 @@ module.exports = function(RED) {
                         }
                     }
                 }
-                var statusCode = node.statusCode || msg.statusCode || 200;
+                var statusCode = node.statusCode || parseInt(msg.statusCode) || 200;
                 if (typeof msg.payload == "object" && !Buffer.isBuffer(msg.payload)) {
                     msg.res._res.status(statusCode).jsonp(msg.payload);
                 } else {

packages/node_modules/@node-red/nodes/locales/en-US/function/80-template.html

@@ -52,4 +52,7 @@
        used to mark the templated sections. For example, to use <code>[[ ]]</code>
        instead, add the following line to the top of the template:</p>
     <pre>{{=[[ ]]=}}</pre>
+    <h4>Using environment variables</h4>
+    <p>The template node can access environment variables using the syntax:</p>
+    <pre>My favourite colour is {{env.COLOUR}}.</pre>
 </script>

packages/node_modules/@node-red/nodes/locales/ja/function/80-template.html

@@ -48,4 +48,7 @@
     <p><b>注: </b>デフォルトでは、<i>mustache</i>形式は置換対象のHTML要素をエスケープします。これを抑止するには<code>{{{三重}}}</code>括弧形式を使います。</p>
     <p>もし、コンテンツの中で<code>{{ }}</code>を出力する必要がある場合は、テンプレートで使われる記号文字を変えることもできます。例えば、<code>[[ ]]</code>を代わりに用いるには、テンプレートの先頭に以下の行を追加します。</p>
     <pre>{{=[[ ]]=}}</pre>
+    <h4>環境変数の利用</h4>
+    <p>templateノードでは、次の構文を用いると環境変数にアクセスできます:</p>
+    <pre>私の好きな色は{{env.COLOUR}}です。</pre>
 </script>

packages/node_modules/@node-red/runtime/lib/nodes/Node.js

@@ -373,6 +373,11 @@ Node.prototype.send = function(msg) {
     if (msg === null || typeof msg === "undefined") {
         return;
     } else if (!util.isArray(msg)) {
+        // A single message has been passed in
+        if (typeof msg !== 'object') {
+            this.error(Log._("nodes.flow.non-message-returned", { type: typeof msg }));
+            return
+        }
         if (this._wire) {
             // A single message and a single wire on output 0
             // TODO: pre-load flows.get calls - cannot do in constructor
@@ -425,27 +430,31 @@ Node.prototype.send = function(msg) {
                     for (k = 0; k < msgs.length; k++) {
                         var m = msgs[k];
                         if (m !== null && m !== undefined) {
-                            if (!m._msgid) {
-                                hasMissingIds = true;
+                            if (typeof m !== 'object') {
+                                this.error(Log._("nodes.flow.non-message-returned", { type: typeof m }));
+                            } else {
+                                if (!m._msgid) {
+                                    hasMissingIds = true;
+                                }
+                                /* istanbul ignore else */
+                                if (!sentMessageId) {
+                                    sentMessageId = m._msgid;
+                                }
+                                sendEvents.push({
+                                    msg: m,
+                                    source: {
+                                        id: this.id,
+                                        node: this,
+                                        port: i
+                                    },
+                                    destination: {
+                                        id: wires[j],
+                                        node: undefined
+                                    },
+                                    cloneMessage: msgSent
+                                });
+                                msgSent = true;
                             }
-                            /* istanbul ignore else */
-                            if (!sentMessageId) {
-                                sentMessageId = m._msgid;
-                            }
-                            sendEvents.push({
-                                msg: m,
-                                source: {
-                                    id: this.id,
-                                    node: this,
-                                    port: i
-                                },
-                                destination: {
-                                    id: wires[j],
-                                    node: undefined
-                                },
-                                cloneMessage: msgSent
-                            });
-                            msgSent = true;
                         }
                     }
                 }

packages/node_modules/@node-red/runtime/locales/en-US/runtime.json

@@ -134,7 +134,8 @@
         "flow": {
             "unknown-type": "Unknown type: __type__",
             "missing-types": "missing types",
-            "error-loop": "Message exceeded maximum number of catches"
+            "error-loop": "Message exceeded maximum number of catches",
+            "non-message-returned": "Node tried to send a message of type __type__"
         },
         "index": {
             "unrecognised-id": "Unrecognised id: __id__",