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node-red/red/server.js
2014-08-07 22:24:02 +01:00

170 lines
5.0 KiB
JavaScript

/**
* 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 express = require('express');
var util = require('util');
var when = require('when');
var createUI = require("./ui");
var redNodes = require("./nodes");
var comms = require("./comms");
var app = null;
var nodeApp = null;
var server = null;
var settings = null;
var storage = null;
function createServer(_server,_settings) {
server = _server;
settings = _settings;
comms.init(_server,_settings);
storage = require("./storage");
app = createUI(settings);
nodeApp = express();
app.get("/nodes",function(req,res) {
res.send(redNodes.getNodeConfigs());
});
app.get("/flows",function(req,res) {
res.json(redNodes.getFlows());
});
app.post("/flows",
express.json(),
function(req,res) {
var flows = req.body;
redNodes.setFlows(flows).then(function() {
res.send(204);
}).otherwise(function(err) {
util.log("[red] Error saving flows : "+err);
res.send(500,err.message);
});
},
function(error,req,res,next) {
res.send(400,"Invalid Flow");
}
);
app.post("/nodes",
express.json(),
function(req,res) {
var node = req.body;
if (!node.file && !node.module) {
res.send(400,"Invalid request");
return;
}
redNodes.addNode(node).then(function(info) {
comms.publish("node/added",info,false);
util.log("[red] Added node types:");
for (var i=0;i<info.types.length;i++) {
util.log("[red] - "+info.types[i]);
}
res.json(info);
}).otherwise(function(err) {
res.send(400,err.toString());
});
},
function(err,req,res,next) {
res.send(400,err);
}
);
app.delete("/nodes/:id",
function(req,res) {
var id = req.params.id;
try {
var info = redNodes.removeNode(id);
comms.publish("node/removed",info,false);
util.log("[red] Removed node types:");
for (var i=0;i<info.types.length;i++) {
util.log("[red] - "+info.types[i]);
}
res.json(info);
} catch(err) {
res.send(400,err.toString());
}
},
function(err,req,res,next) {
res.send(400,err);
}
);
app.get("/nodes/:id", function(req,res) {
var id = req.params.id;
var config = redNodes.getNodeConfig(id);
if (config) {
res.send(config);
} else {
res.send(404);
}
});
}
function start() {
var defer = when.defer();
storage.init(settings).then(function() {
console.log("\nWelcome to Node-RED\n===================\n");
if (settings.version) {
util.log("[red] Version: "+settings.version);
}
util.log("[red] Loading palette nodes");
redNodes.init(settings,storage);
redNodes.load().then(function() {
var nodes = redNodes.getNodeList();
var nodeErrors = nodes.filter(function(n) { return n.err!=null;});
if (nodeErrors.length > 0) {
util.log("------------------------------------------");
if (settings.verbose) {
for (var i=0;i<nodeErrors.length;i+=1) {
util.log("["+nodeErrors[i].name+"] "+nodeErrors[i].err);
}
} else {
util.log("[red] Failed to register "+nodeErrors.length+" node type"+(nodeErrors.length==1?"":"s"));
util.log("[red] Run with -v for details");
}
util.log("------------------------------------------");
}
defer.resolve();
redNodes.loadFlows();
});
comms.start();
}).otherwise(function(err) {
defer.reject(err);
});
return defer.promise;
}
function stop() {
redNodes.stopFlows();
comms.stop();
}
module.exports = {
init: createServer,
start: start,
stop: stop
}
module.exports.__defineGetter__("app", function() { return app });
module.exports.__defineGetter__("nodeApp", function() { return nodeApp });
module.exports.__defineGetter__("server", function() { return server });