Add dropbox query node.

Author: hindessm

dropbox/dropbox.html

@@ -65,6 +65,48 @@
 })();
 </script>
 
+<script type="text/x-red" data-template-name="dropbox">
+    <div class="form-row">
+        <label for="node-input-dropbox"><i class="fa fa-user"></i> Dropbox</label>
+        <input type="text" id="node-input-dropbox">
+    </div>
+    <div class="form-row node-input-filename">
+         <label for="node-input-filename"><i class="fa fa-file"></i> Filename</label>
+         <input type="text" id="node-input-filename" placeholder="Filename">
+    </div>
+    <div class="form-row">
+        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
+        <input type="text" id="node-input-name" placeholder="Name">
+    </div>
+</script>
+
+<script type="text/x-red" data-help-name="dropbox">
+    <p>Dropbox input node. Downloads content from Dropbox. The
+    filename on Dropbox is taken from the node <b>filename</b>
+    property or the <b>msg.filename</b> property. The downloaded
+    content is sent as <b>msg.payload</b> property. If the download
+    fails <b>msg.error</b> will contain an error object.</p>
+</script>
+
+<script type="text/javascript">
+    RED.nodes.registerType('dropbox',{
+        category: 'storage-input',
+        color:"#C0DEED",
+        defaults: {
+            dropbox: {type:"dropbox-config",required:true},
+            filename: {value:""},
+            name: {value:""}
+        },
+        inputs: 1,
+        outputs: 1,
+        icon: "dropbox.png",
+        align: "right",
+        label: function() {
+            return this.name||this.filename||'Dropbox';
+        }
+    });
+</script>
+
 <script type="text/x-red" data-template-name="dropbox out">
     <div class="form-row">
         <label for="node-input-dropbox"><i class="fa fa-user"></i> Dropbox</label>
@@ -96,7 +138,7 @@
             dropbox: {type:"dropbox-config",required:true},
             filename: {value:""},
             localFilename: {value:""},
-            name: {value:"Dropbox"}
+            name: {value:""}
         },
         inputs:1,
         outputs:0,

dropbox/dropbox.js

@@ -30,6 +30,48 @@ module.exports = function(RED) {
         }
     });
 
+    function DropboxQueryNode(n) {
+        RED.nodes.createNode(this,n);
+        this.filename = n.filename || "";
+        this.dropboxConfig = RED.nodes.getNode(n.dropbox);
+        var credentials = this.dropboxConfig ? this.dropboxConfig.credentials : {};
+        var node = this;
+        if (credentials.appkey && credentials.appsecret &&
+            credentials.accesstoken) {
+            var dropbox = new Dropbox.Client({
+                //uid: credentials.uid,
+                key: credentials.appkey,
+                secret: credentials.appsecret,
+                token: credentials.accesstoken,
+            });
+            node.on("input", function(msg) {
+                var filename = this.filename || msg.filename;
+                if (filename === "") {
+                    node.warn("No filename specified");
+                    return;
+                }
+                msg.filename = filename;
+                node.status({fill:"blue",shape:"dot",text:"downloading"});
+                dropbox.readFile(filename, function(err, data) {
+                    if (err) {
+                        node.warn("download failed " + err.toString());
+                        delete msg.payload;
+                        msg.error = err;
+                    } else {
+                        msg.payload = data;
+                        delete msg.error;
+                    }
+                    node.status({});
+                    node.send(msg);
+                });
+            });
+        } else {
+            node.warn("Missing dropbox credentials");
+        }
+    }
+    RED.nodes.registerType("dropbox",DropboxQueryNode);
+
+
     function DropboxOutNode(n) {
         RED.nodes.createNode(this,n);
         this.filename = n.filename || "";
@@ -93,6 +135,8 @@ module.exports = function(RED) {
                     }
                 });
             });
+        } else {
+            node.warn("Missing dropbox credentials");
         }
     }
     RED.nodes.registerType("dropbox out",DropboxOutNode);