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/**
* 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();
});
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