mirror of
https://github.com/node-red/node-red.git
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118 lines
3.6 KiB
JavaScript
118 lines
3.6 KiB
JavaScript
/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var fs = require('fs');
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var util = require('util');
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var createUI = require("./ui");
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var redNodes = require("./nodes");
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//TODO: relocated user dir
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var flowfile = '';
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var app = null;
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var server = null;
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function createServer(_server,settings) {
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server = _server;
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app = createUI(settings);
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flowfile = settings.flowFile || 'flows_'+require('os').hostname()+'.json';
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//TODO: relocated user dir
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fs.exists("lib/",function(exists) {
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if (!exists) {
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fs.mkdir("lib");
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}
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});
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app.get("/nodes",function(req,res) {
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res.writeHead(200, {'Content-Type': 'text/plain'});
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res.write(redNodes.getNodeConfigs());
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res.end();
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});
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app.get("/flows",function(req,res) {
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fs.exists(flowfile, function (exists) {
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if (exists) {
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res.sendfile(flowfile);
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} else {
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res.writeHead(200, {'Content-Type': 'text/plain'});
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res.write("[]");
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res.end();
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}
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});
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});
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app.post("/flows",function(req,res) {
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var fullBody = '';
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req.on('data', function(chunk) {
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fullBody += chunk.toString();
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});
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req.on('end', function() {
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res.writeHead(204, {'Content-Type': 'text/plain'});
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res.end();
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fs.writeFile(flowfile, fullBody, function(err) {
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if(err) {
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util.log(err);
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} else {
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redNodes.setConfig(JSON.parse(fullBody));
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}
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});
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});
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});
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}
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function start() {
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console.log("\nWelcome to Node-RED\n===================\n");
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util.log("[red] Loading palette nodes");
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util.log("------------------------------------------");
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redNodes.load();
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util.log("");
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util.log('You may ignore any errors above here if they are for');
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util.log('nodes you are not using. The nodes indicated will not');
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util.log('be available in the main palette until any missing');
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util.log('modules are installed, typically by running:');
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util.log(' npm install {the module name}');
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util.log('or any other errors are resolved');
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util.log("------------------------------------------");
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fs.exists(flowfile, function (exists) {
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if (exists) {
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util.log("[red] Loading flows : "+flowfile);
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fs.readFile(flowfile,'utf8',function(err,data) {
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redNodes.setConfig(JSON.parse(data));
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});
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} else {
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util.log("[red] Flows file not found : "+flowfile);
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}
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});
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}
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function stop() {
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redNodes.stopFlows();
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}
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module.exports = {
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init: createServer,
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start: start,
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stop: stop
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}
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module.exports.__defineGetter__("app", function() { return app });
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module.exports.__defineGetter__("server", function() { return server });
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