Add HTTP Response node to make http flows easier to handle

nodes/io/21-httpin.html

@@ -50,13 +50,14 @@
 	   <pre>foo=bar&amp;this=that</pre>
     </p>
 	<p>
-	   To send JSON encoded data, the content-type header of the request must be set to
+	   To send JSON encoded data to the node, the content-type header of the request must be set to
 	   <code>application/json</code>.
 	</p>
 	<p>
-	    <b>Note: </b>This node does not send any response to the http request. This must be done within
+	   <b>Note: </b>This node does not send any response to the http request. This should be done with
-	    a subsequent Function node. The <a href="http://expressjs.com/api.html#res">Express response documentation</a>
+	   a subsequent HTTP Response node, or Function node.
-	    describes how this should be done.
+	   In the case of a Function node, the <a href="http://expressjs.com/api.html#res">Express response documentation</a>
+	   describes how this should be done. For example:
 	   <pre>msg.res.send(200, 'Thanks for the request ');<br/>return msg;</pre>
     </p>
 
@@ -81,5 +82,37 @@
             return this.name?"node_label_italic":"";
         }
     });
-
 </script>
+
+<script type="text/x-red" data-template-name="http response">
+    <div class="form-tips">The messages sent to this node must originate from an HTTP input node</div>
+</script>
+
+<script type="text/x-red" data-help-name="http response">
+	<p>Provides an response node for http requests received from an http input node.</p>
+	<ul>
+	    <li><code>payload</code> is sent as the body of the reponse</li>
+	    <li><code>rc</code>, if set, is used as the response code (default: 200)</li>
+	    <li><code>headers</code>, if set, should be an object containing field/value
+	    pairs to be added as response headers.</li>
+	</ul>
+</script>
+
+<script type="text/javascript">
+    RED.nodes.registerType('http response',{
+        category: 'output',
+        color:"rgb(231, 231, 174)",
+        defaults: {},
+        inputs:1,
+        outputs:0,
+        align: "right",
+        icon: "white-globe.png",
+        label: function() {
+            return "http"
+        },
+        labelStyle: function() {
+            return "";
+        }
+    });
+</script>
+

nodes/io/21-httpin.js

@@ -35,11 +35,8 @@ function HTTPIn(n) {
 	} else if (this.method == "delete") {
 		RED.app.delete(this.url,this.callback);
 	}
-}
 	
-RED.nodes.registerType("http in",HTTPIn);
+	this.on("close",function() {
-
-HTTPIn.prototype.close = function() {
 	        var routes = RED.app.routes[this.method];
 	        for (var i in routes) {
 	            if (routes[i].path == this.url) {
@@ -47,5 +44,24 @@ HTTPIn.prototype.close = function() {
 	                break;
 	            }
 	        }
+	});
 }
 
+RED.nodes.registerType("http in",HTTPIn);
+
+
+function HTTPOut(n) {
+	RED.nodes.createNode(this,n);
+	
+	this.on("input",function(msg) {
+	        if (msg.res) {
+	            if (msg.headers) {
+	                res.set(msg.headers);
+	            }
+	            var rc = msg.rc || 200;
+	            msg.res.send(rc,msg.payload);
+	        }
+	});
+}
+
+RED.nodes.registerType("http response",HTTPOut);