[CCSDK-28] populated the seed code for dgbuilder

[ccsdk/distribution.git] / dgbuilder / red.js

diff --git a/dgbuilder/red.js b/dgbuilder/red.js
new file mode 100644 (file)
index 0000000..14f6d38
--- /dev/null
+++ b/dgbuilder/red.js
@@ -0,0 +1,224 @@
+/**
+ * Copyright 2013 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+var http = require('http');
+var https = require('https');
+var util = require("util");
+var express = require("express");
+var crypto = require("crypto");
+var nopt = require("nopt");
+var path = require("path");
+var RED = require("./red/red.js");
+
+var server;
+var app = express();
+
+var settingsFile = "./settings";
+var flowFile;
+
+var knownOpts = {
+    "settings":[path],
+    "v": Boolean,
+    "help": Boolean
+};
+var shortHands = {
+    "s":["--settings"],
+    "?":["--help"]
+};
+nopt.invalidHandler = function(k,v,t) {
+    // TODO: console.log(k,v,t);
+}
+
+var parsedArgs = nopt(knownOpts,shortHands,process.argv,2)
+
+if (parsedArgs.help) {
+    console.log("Node-RED v"+RED.version());
+    console.log("Usage: node red.js [-v] [-?] [--settings settings.js] [flows.json]");
+    console.log("");
+    console.log("Options:");
+    console.log("  -s, --settings FILE  use specified settings file");
+    console.log("  -v                   enable verbose output");
+    console.log("  -?, --help           show usage");
+    console.log("");
+    console.log("Documentation can be found at http://nodered.org");
+    process.exit();
+}
+if (parsedArgs.argv.remain.length > 0) {
+    flowFile = parsedArgs.argv.remain[0];
+}
+
+if (parsedArgs.settings) {
+    settingsFile = parsedArgs.settings;
+}
+try {
+    var settings = require(settingsFile);
+} catch(err) {
+    if (err.code == 'MODULE_NOT_FOUND') {
+        console.log("Unable to load settings file "+settingsFile);
+    } else {
+        console.log(err);
+    }
+    process.exit();
+}
+
+if (parsedArgs.v) {
+    settings.verbose = true;
+}
+
+if (settings.https) {
+    server = https.createServer(settings.https,function(req,res){app(req,res);});
+} else {
+    server = http.createServer(function(req,res){app(req,res);});
+}
+server.setMaxListeners(0);
+
+function formatRoot(root) {
+    if (root[0] != "/") {
+        root = "/" + root;
+    }
+    if (root.slice(-1) != "/") {
+        root = root + "/";
+    }
+    return root;
+}
+
+if (settings.httpRoot === false) {
+    settings.httpAdminRoot = false;
+    settings.httpNodeRoot = false;
+} else {
+    settings.httpRoot = settings.httpRoot||"/";
+    settings.disableEditor = settings.disableEditor||false;
+}
+
+if (settings.httpAdminRoot !== false) {
+    settings.httpAdminRoot = formatRoot(settings.httpAdminRoot || settings.httpRoot || "/");
+    settings.httpAdminAuth = settings.httpAdminAuth || settings.httpAuth;
+} else {
+    settings.disableEditor = true;
+}
+
+if (settings.httpNodeRoot !== false) {
+    settings.httpNodeRoot = formatRoot(settings.httpNodeRoot || settings.httpRoot || "/");
+    settings.httpNodeAuth = settings.httpNodeAuth || settings.httpAuth;
+}
+
+settings.uiPort = settings.uiPort||1880;
+settings.uiHost = settings.uiHost||"0.0.0.0";
+var appDir = path.dirname(require.main.filename);
+if (settings.flowFile != null && settings.flowFile.indexOf(appDir) != -1){
+       settings.flowFile = flowFile || settings.flowFile;
+}else{
+       settings.flowFile = flowFile || appDir + "/" + settings.flowFile;
+}
+
+RED.init(server,settings);
+
+if (settings.httpAdminRoot !== false && settings.httpAdminAuth) {
+    app.use(settings.httpAdminRoot,
+        express.basicAuth(function(user, pass) {
+            return user === settings.httpAdminAuth.user && crypto.createHash('md5').update(pass,'utf8').digest('hex') === settings.httpAdminAuth.pass;
+        })
+    );
+}
+if (settings.httpNodeRoot !== false && settings.httpNodeAuth) {
+    app.use(settings.httpNodeRoot,
+        express.basicAuth(function(user, pass) {
+            return user === settings.httpNodeAuth.user && crypto.createHash('md5').update(pass,'utf8').digest('hex') === settings.httpNodeAuth.pass;
+        })
+    );
+}
+if (settings.httpAdminRoot !== false) {
+    app.use(settings.httpAdminRoot,RED.httpAdmin);
+}
+if (settings.httpNodeRoot !== false) {
+    app.use(settings.httpNodeRoot,RED.httpNode);
+}
+
+if (settings.httpStatic) {
+    settings.httpStaticAuth = settings.httpStaticAuth || settings.httpAuth;
+    if (settings.httpStaticAuth) {
+        app.use("/",
+            express.basicAuth(function(user, pass) {
+                return user === settings.httpStaticAuth.user && crypto.createHash('md5').update(pass,'utf8').digest('hex') === settings.httpStaticAuth.pass;
+            })
+        );
+    }
+    app.use("/",express.static(settings.httpStatic));
+}
+
+function getListenPath() {
+    var listenPath = 'http'+(settings.https?'s':'')+'://'+
+                    (settings.uiHost == '0.0.0.0'?'127.0.0.1':settings.uiHost)+
+                    ':'+settings.uiPort;
+    if (settings.httpAdminRoot !== false) {
+        listenPath += settings.httpAdminRoot;
+    } else if (settings.httpStatic) {
+        listenPath += "/";
+    }
+    return listenPath;
+}
+
+RED.start().then(function() {
+    if (settings.httpAdminRoot !== false || settings.httpNodeRoot !== false || settings.httpStatic) {
+        server.on('error', function(err) {
+            if (err.errno === "EADDRINUSE") {
+                util.log('[red] Unable to listen on '+getListenPath());
+                util.log('[red] Error: port in use');
+            } else {
+                util.log('[red] Uncaught Exception:');
+                if (err.stack) {
+                    util.log(err.stack);
+                } else {
+                    util.log(err);
+                }
+            }
+            process.exit(1);
+        });
+        server.listen(settings.uiPort,settings.uiHost,function() {
+            if (settings.httpAdminRoot === false) {
+                util.log('[red] Admin UI disabled');
+            }
+            process.title = 'node-red';
+            util.log('[red] Server now running at '+getListenPath());
+        });
+    } else {
+        util.log('[red] Running in headless mode');
+    }
+}).otherwise(function(err) {
+    util.log("[red] Failed to start server:");
+    if (err.stack) {
+        util.log(err.stack);
+    } else {
+        util.log(err);
+    }
+});
+
+
+process.on('uncaughtException',function(err) {
+    util.log('[red] Uncaught Exception:');
+    if (err.stack) {
+        util.log(err.stack);
+    } else {
+        util.log(err);
+    }
+    process.exit(1);
+});
+
+process.on('SIGINT', function () {
+    RED.stop();
+    // TODO: need to allow nodes to close asynchronously before terminating the
+    // process - ie, promises 
+    process.exit();
+});