mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
258 lines
9.0 KiB
JavaScript
258 lines
9.0 KiB
JavaScript
/**
|
|
* Copyright 2013, 2015 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 when = require('when');
|
|
var child_process = require('child_process');
|
|
var path = require("path");
|
|
var fs = require("fs");
|
|
|
|
var redNodes = require("./nodes");
|
|
var comms = require("./comms");
|
|
var storage = require("./storage");
|
|
var log = require("./log");
|
|
|
|
var app = null;
|
|
var nodeApp = null;
|
|
var server = null;
|
|
var settings = null;
|
|
|
|
var runtimeMetricInterval = null;
|
|
|
|
|
|
function init(_server,_settings) {
|
|
server = _server;
|
|
settings = _settings;
|
|
|
|
comms.init(_server,_settings);
|
|
|
|
nodeApp = express();
|
|
app = express();
|
|
}
|
|
|
|
function start() {
|
|
return storage.init(settings)
|
|
.then(function() { return settings.load(storage)})
|
|
.then(function() {
|
|
if (settings.httpAdminRoot !== false) {
|
|
require("./api").init(app,storage);
|
|
}
|
|
|
|
if (log.metric()) {
|
|
runtimeMetricInterval = setInterval(function() {
|
|
reportMetrics();
|
|
}, settings.runtimeMetricInterval||15000);
|
|
}
|
|
console.log("\n\nWelcome to Node-RED\n===================\n");
|
|
if (settings.version) {
|
|
log.info("Node-RED version: v"+settings.version);
|
|
}
|
|
log.info("Node.js version: "+process.version);
|
|
log.info("Loading palette nodes");
|
|
redNodes.init(settings,storage,app);
|
|
redNodes.load().then(function() {
|
|
var i;
|
|
var nodeErrors = redNodes.getNodeList(function(n) { return n.err!=null;});
|
|
var nodeMissing = redNodes.getNodeList(function(n) { return n.module && n.enabled && !n.loaded && !n.err;});
|
|
if (nodeErrors.length > 0) {
|
|
log.warn("------------------------------------------");
|
|
if (settings.verbose) {
|
|
for (i=0;i<nodeErrors.length;i+=1) {
|
|
log.warn("["+nodeErrors[i].name+"] "+nodeErrors[i].err);
|
|
}
|
|
} else {
|
|
log.warn("Failed to register "+nodeErrors.length+" node type"+(nodeErrors.length==1?"":"s"));
|
|
log.warn("Run with -v for details");
|
|
}
|
|
log.warn("------------------------------------------");
|
|
}
|
|
if (nodeMissing.length > 0) {
|
|
log.warn("Missing node modules:");
|
|
var missingModules = {};
|
|
for (i=0;i<nodeMissing.length;i++) {
|
|
var missing = nodeMissing[i];
|
|
missingModules[missing.module] = (missingModules[missing.module]||[]).concat(missing.types);
|
|
}
|
|
var promises = [];
|
|
for (i in missingModules) {
|
|
if (missingModules.hasOwnProperty(i)) {
|
|
log.warn(" - "+i+": "+missingModules[i].join(", "));
|
|
if (settings.autoInstallModules && i != "node-red") {
|
|
serverAPI.installModule(i).otherwise(function(err) {
|
|
// Error already reported. Need the otherwise handler
|
|
// to stop the error propagating any further
|
|
});
|
|
}
|
|
}
|
|
}
|
|
if (!settings.autoInstallModules) {
|
|
log.info("Removing modules from config");
|
|
redNodes.cleanModuleList();
|
|
}
|
|
}
|
|
redNodes.loadFlows();
|
|
}).otherwise(function(err) {
|
|
console.log(err);
|
|
});
|
|
comms.start();
|
|
});
|
|
}
|
|
|
|
|
|
function reportAddedModules(info) {
|
|
comms.publish("node/added",info.nodes,false);
|
|
if (info.nodes.length > 0) {
|
|
log.info("Added node types:");
|
|
for (var i=0;i<info.nodes.length;i++) {
|
|
for (var j=0;j<info.nodes[i].types.length;j++) {
|
|
log.info(" - "+
|
|
(info.nodes[i].module?info.nodes[i].module+":":"")+
|
|
info.nodes[i].types[j]+
|
|
(info.nodes[i].err?" : "+info.nodes[i].err:"")
|
|
);
|
|
}
|
|
}
|
|
}
|
|
return info;
|
|
}
|
|
|
|
function reportRemovedModules(removedNodes) {
|
|
comms.publish("node/removed",removedNodes,false);
|
|
log.info("Removed node types:");
|
|
for (var j=0;j<removedNodes.length;j++) {
|
|
for (var i=0;i<removedNodes[j].types.length;i++) {
|
|
log.info(" - "+(removedNodes[j].module?removedNodes[j].module+":":"")+removedNodes[j].types[i]);
|
|
}
|
|
}
|
|
return removedNodes;
|
|
}
|
|
|
|
function installModule(module) {
|
|
//TODO: ensure module is 'safe'
|
|
return when.promise(function(resolve,reject) {
|
|
if (/[\s;]/.test(module)) {
|
|
reject(new Error("Invalid module name"));
|
|
return;
|
|
}
|
|
log.info("Installing module: "+module);
|
|
var installDir = settings.userDir || process.env.NODE_RED_HOME || ".";
|
|
var child = child_process.exec('npm install --production '+module,
|
|
{
|
|
cwd: installDir
|
|
},
|
|
function(err, stdin, stdout) {
|
|
if (err) {
|
|
var lookFor404 = new RegExp(" 404 .*"+module+"$","m");
|
|
if (lookFor404.test(stdout)) {
|
|
log.warn("Installation of module "+module+" failed: module not found");
|
|
var e = new Error();
|
|
e.code = 404;
|
|
reject(e);
|
|
} else {
|
|
log.warn("Installation of module "+module+" failed:");
|
|
log.warn("------------------------------------------");
|
|
log.warn(err.toString());
|
|
log.warn("------------------------------------------");
|
|
reject(new Error("Install failed"));
|
|
}
|
|
} else {
|
|
log.info("Installed module: "+module);
|
|
resolve(redNodes.addModule(module).then(reportAddedModules));
|
|
}
|
|
}
|
|
);
|
|
});
|
|
}
|
|
|
|
function uninstallModule(module) {
|
|
return when.promise(function(resolve,reject) {
|
|
if (/[\s;]/.test(module)) {
|
|
reject(new Error("Invalid module name"));
|
|
return;
|
|
}
|
|
var installDir = settings.userDir || process.env.NODE_RED_HOME || ".";
|
|
var moduleDir = path.join(installDir,"node_modules",module);
|
|
if (!fs.existsSync(moduleDir)) {
|
|
return reject(new Error("Unabled to uninstall "+module+"."));
|
|
}
|
|
|
|
var list = redNodes.removeModule(module);
|
|
log.info("Removing module: "+module);
|
|
var child = child_process.exec('npm remove '+module,
|
|
{
|
|
cwd: installDir
|
|
},
|
|
function(err, stdin, stdout) {
|
|
if (err) {
|
|
log.warn("Removal of module "+module+" failed:");
|
|
log.warn("------------------------------------------");
|
|
log.warn(err.toString());
|
|
log.warn("------------------------------------------");
|
|
reject(new Error("Removal failed"));
|
|
} else {
|
|
log.info("Removed module: "+module);
|
|
reportRemovedModules(list);
|
|
resolve(list);
|
|
}
|
|
}
|
|
);
|
|
});
|
|
}
|
|
|
|
function reportMetrics() {
|
|
var memUsage = process.memoryUsage();
|
|
|
|
log.log({
|
|
level: log.METRIC,
|
|
event: "runtime.memory.rss",
|
|
value: memUsage.rss
|
|
});
|
|
log.log({
|
|
level: log.METRIC,
|
|
event: "runtime.memory.heapTotal",
|
|
value: memUsage.heapTotal
|
|
});
|
|
log.log({
|
|
level: log.METRIC,
|
|
event: "runtime.memory.heapUsed",
|
|
value: memUsage.heapUsed
|
|
});
|
|
}
|
|
|
|
function stop() {
|
|
if (runtimeMetricInterval) {
|
|
clearInterval(runtimeMetricInterval);
|
|
runtimeMetricInterval = null;
|
|
}
|
|
redNodes.stopFlows();
|
|
comms.stop();
|
|
}
|
|
|
|
var serverAPI = module.exports = {
|
|
init: init,
|
|
start: start,
|
|
stop: stop,
|
|
|
|
reportAddedModules: reportAddedModules,
|
|
reportRemovedModules: reportRemovedModules,
|
|
installModule: installModule,
|
|
uninstallModule: uninstallModule,
|
|
|
|
get app() { return app },
|
|
get nodeApp() { return nodeApp },
|
|
get server() { return server }
|
|
}
|