mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
734 lines
24 KiB
JavaScript
734 lines
24 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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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 clone = require("clone");
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var when = require("when");
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var Flow = require('./Flow');
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var typeRegistry = require("@node-red/registry");
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var deprecated = typeRegistry.deprecated;
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var context = require("../context")
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var credentials = require("../credentials");
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var flowUtil = require("./util");
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var log;
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var events = require("../../events");
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var redUtil = require("@node-red/util").util;
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var storage = null;
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var settings = null;
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var activeConfig = null;
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var activeFlowConfig = null;
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var activeFlows = {};
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var started = false;
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var credentialsPendingReset = false;
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var activeNodesToFlow = {};
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var typeEventRegistered = false;
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function init(runtime) {
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if (started) {
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throw new Error("Cannot init without a stop");
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}
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settings = runtime.settings;
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storage = runtime.storage;
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log = runtime.log;
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started = false;
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if (!typeEventRegistered) {
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events.on('type-registered',function(type) {
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if (activeFlowConfig && activeFlowConfig.missingTypes.length > 0) {
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var i = activeFlowConfig.missingTypes.indexOf(type);
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if (i != -1) {
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log.info(log._("nodes.flows.registered-missing", {type:type}));
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activeFlowConfig.missingTypes.splice(i,1);
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if (activeFlowConfig.missingTypes.length === 0 && started) {
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events.emit("runtime-event",{id:"runtime-state",retain: true});
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start();
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}
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}
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}
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});
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typeEventRegistered = true;
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}
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Flow.init(runtime);
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}
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function loadFlows() {
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var config;
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return storage.getFlows().then(function(_config) {
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config = _config;
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log.debug("loaded flow revision: "+config.rev);
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return credentials.load(config.credentials).then(function() {
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events.emit("runtime-event",{id:"runtime-state",retain:true});
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return config;
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});
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}).catch(function(err) {
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if (err.code === "credentials_load_failed" && !storage.projects) {
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// project disabled, credential load failed
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credentialsPendingReset = true;
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log.warn(log._("nodes.flows.error",{message:err.toString()}));
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events.emit("runtime-event",{id:"runtime-state",payload:{type:"warning",error:err.code,text:"notification.warnings.credentials_load_failed_reset"},retain:true});
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return config;
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} else {
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activeConfig = null;
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events.emit("runtime-event",{id:"runtime-state",payload:{type:"warning",error:err.code,project:err.project,text:"notification.warnings."+err.code},retain:true});
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if (err.code === "project_not_found") {
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log.warn(log._("storage.localfilesystem.projects.project-not-found",{project:err.project}));
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} else {
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log.warn(log._("nodes.flows.error",{message:err.toString()}));
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}
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throw err;
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}
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});
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}
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function load(forceStart) {
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if (forceStart && settings.safeMode) {
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// This is a force reload from the API - disable safeMode
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delete settings.safeMode;
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}
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return setFlows(null,"load",false,forceStart);
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}
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/*
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* _config - new node array configuration
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* type - full/nodes/flows/load (default full)
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* muteLog - don't emit the standard log messages (used for individual flow api)
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*/
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function setFlows(_config,type,muteLog,forceStart) {
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type = type||"full";
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if (settings.safeMode) {
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if (type !== "load") {
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// If in safeMode, the flows are stopped. We cannot do a modified nodes/flows
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// type deploy as nothing is running. Can only do a "load" or "full" deploy.
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// The "load" case is already handled in `load()` to distinguish between
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// startup-load and api-request-load.
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type = "full";
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delete settings.safeMode;
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}
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}
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var configSavePromise = null;
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var config = null;
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var diff;
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var newFlowConfig;
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var isLoad = false;
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if (type === "load") {
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isLoad = true;
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configSavePromise = loadFlows().then(function(_config) {
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config = clone(_config.flows);
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newFlowConfig = flowUtil.parseConfig(clone(config));
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type = "full";
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return _config.rev;
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});
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} else {
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// Clone the provided config so it can be manipulated
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config = clone(_config);
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// Parse the configuration
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newFlowConfig = flowUtil.parseConfig(clone(config));
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// Generate a diff to identify what has changed
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diff = flowUtil.diffConfigs(activeFlowConfig,newFlowConfig);
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// Now the flows have been compared, remove any credentials from newFlowConfig
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// so they don't cause false-positive diffs the next time a flow is deployed
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for (var id in newFlowConfig.allNodes) {
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if (newFlowConfig.allNodes.hasOwnProperty(id)) {
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delete newFlowConfig.allNodes[id].credentials;
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}
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}
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// Allow the credential store to remove anything no longer needed
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credentials.clean(config);
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// Remember whether credentials need saving or not
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var credsDirty = credentials.dirty();
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// Get the latest credentials and ask storage to save them (if needed)
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// as well as the new flow configuration.
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configSavePromise = credentials.export().then(function(creds) {
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var saveConfig = {
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flows: config,
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credentialsDirty:credsDirty,
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credentials: creds
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}
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return storage.saveFlows(saveConfig);
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});
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}
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return configSavePromise
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.then(function(flowRevision) {
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if (!isLoad) {
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log.debug("saved flow revision: "+flowRevision);
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}
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activeConfig = {
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flows:config,
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rev:flowRevision
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};
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activeFlowConfig = newFlowConfig;
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if (forceStart || started) {
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// Flows are running (or should be)
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// Stop the active flows (according to deploy type and the diff)
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return stop(type,diff,muteLog).then(() => {
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// Once stopped, allow context to remove anything no longer needed
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return context.clean(activeFlowConfig)
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}).then(() => {
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// Start the active flows
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start(type,diff,muteLog).then(() => {
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events.emit("runtime-event",{id:"runtime-deploy",payload:{revision:flowRevision},retain: true});
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});
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// Return the new revision asynchronously to the actual start
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return flowRevision;
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}).catch(function(err) { })
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} else {
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events.emit("runtime-event",{id:"runtime-deploy",payload:{revision:flowRevision},retain: true});
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}
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});
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}
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function getNode(id) {
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var node;
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if (activeNodesToFlow[id] && activeFlows[activeNodesToFlow[id]]) {
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return activeFlows[activeNodesToFlow[id]].getNode(id,true);
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}
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for (var flowId in activeFlows) {
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if (activeFlows.hasOwnProperty(flowId)) {
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node = activeFlows[flowId].getNode(id,true);
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if (node) {
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return node;
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}
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}
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}
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return null;
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}
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function eachNode(cb) {
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for (var id in activeFlowConfig.allNodes) {
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if (activeFlowConfig.allNodes.hasOwnProperty(id)) {
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cb(activeFlowConfig.allNodes[id]);
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}
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}
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}
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function getFlows() {
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return activeConfig;
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}
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function start(type,diff,muteLog) {
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type = type||"full";
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started = true;
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var i;
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// If there are missing types, report them, emit the necessary runtime event and return
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if (activeFlowConfig.missingTypes.length > 0) {
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log.info(log._("nodes.flows.missing-types"));
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var knownUnknowns = 0;
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for (i=0;i<activeFlowConfig.missingTypes.length;i++) {
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var nodeType = activeFlowConfig.missingTypes[i];
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var info = deprecated.get(nodeType);
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if (info) {
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log.info(log._("nodes.flows.missing-type-provided",{type:activeFlowConfig.missingTypes[i],module:info.module}));
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knownUnknowns += 1;
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} else {
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log.info(" - "+activeFlowConfig.missingTypes[i]);
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}
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}
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if (knownUnknowns > 0) {
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log.info(log._("nodes.flows.missing-type-install-1"));
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log.info(" npm install <module name>");
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log.info(log._("nodes.flows.missing-type-install-2"));
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log.info(" "+settings.userDir);
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}
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events.emit("runtime-event",{id:"runtime-state",payload:{error:"missing-types", type:"warning",text:"notification.warnings.missing-types",types:activeFlowConfig.missingTypes},retain:true});
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return Promise.resolve();
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}
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// In safe mode, don't actually start anything, emit the necessary runtime event and return
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if (settings.safeMode) {
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log.info("*****************************************************************")
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log.info(log._("nodes.flows.safe-mode"));
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log.info("*****************************************************************")
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events.emit("runtime-event",{id:"runtime-state",payload:{error:"safe-mode", type:"warning",text:"notification.warnings.safe-mode"},retain:true});
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return Promise.resolve();
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}
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if (!muteLog) {
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if (type !== "full") {
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log.info(log._("nodes.flows.starting-modified-"+type));
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} else {
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log.info(log._("nodes.flows.starting-flows"));
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}
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}
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var id;
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if (type === "full") {
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// A full start means everything should
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// Check the 'global' flow is running
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if (!activeFlows['global']) {
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log.debug("red/nodes/flows.start : starting flow : global");
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activeFlows['global'] = Flow.create(flowAPI,activeFlowConfig);
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}
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// Check each flow in the active configuration
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for (id in activeFlowConfig.flows) {
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if (activeFlowConfig.flows.hasOwnProperty(id)) {
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if (!activeFlowConfig.flows[id].disabled && !activeFlows[id]) {
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// This flow is not disabled, nor is it currently active, so create it
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activeFlows[id] = Flow.create(flowAPI,activeFlowConfig,activeFlowConfig.flows[id]);
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log.debug("red/nodes/flows.start : starting flow : "+id);
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} else {
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log.debug("red/nodes/flows.start : not starting disabled flow : "+id);
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}
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}
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}
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} else {
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// A modified-type deploy means restarting things that have changed
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// Update the global flow
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activeFlows['global'].update(activeFlowConfig,activeFlowConfig);
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for (id in activeFlowConfig.flows) {
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if (activeFlowConfig.flows.hasOwnProperty(id)) {
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if (!activeFlowConfig.flows[id].disabled) {
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if (activeFlows[id]) {
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// This flow exists and is not disabled, so update it
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activeFlows[id].update(activeFlowConfig,activeFlowConfig.flows[id]);
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} else {
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// This flow didn't previously exist, so create it
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activeFlows[id] = Flow.create(flowAPI,activeFlowConfig,activeFlowConfig.flows[id]);
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log.debug("red/nodes/flows.start : starting flow : "+id);
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}
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} else {
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log.debug("red/nodes/flows.start : not starting disabled flow : "+id);
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}
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}
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}
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}
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// Having created or updated all flows, now start them.
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for (id in activeFlows) {
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if (activeFlows.hasOwnProperty(id)) {
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try {
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activeFlows[id].start(diff);
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// Create a map of node id to flow id and also a subflowInstance lookup map
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var activeNodes = activeFlows[id].getActiveNodes();
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Object.keys(activeNodes).forEach(function(nid) {
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activeNodesToFlow[nid] = id;
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});
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} catch(err) {
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console.log(err.stack);
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}
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}
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}
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events.emit("nodes-started");
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if (credentialsPendingReset === true) {
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credentialsPendingReset = false;
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} else {
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events.emit("runtime-event",{id:"runtime-state",retain:true});
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}
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if (!muteLog) {
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if (type !== "full") {
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log.info(log._("nodes.flows.started-modified-"+type));
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} else {
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log.info(log._("nodes.flows.started-flows"));
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}
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}
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return Promise.resolve();
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}
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function stop(type,diff,muteLog) {
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if (!started) {
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return Promise.resolve();
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}
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type = type||"full";
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diff = diff||{
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added:[],
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changed:[],
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removed:[],
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rewired:[],
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linked:[]
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};
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if (!muteLog) {
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if (type !== "full") {
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log.info(log._("nodes.flows.stopping-modified-"+type));
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} else {
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log.info(log._("nodes.flows.stopping-flows"));
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}
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}
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started = false;
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var promises = [];
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var stopList;
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var removedList = diff.removed;
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if (type === 'nodes') {
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stopList = diff.changed.concat(diff.removed);
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} else if (type === 'flows') {
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stopList = diff.changed.concat(diff.removed).concat(diff.linked);
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}
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for (var id in activeFlows) {
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if (activeFlows.hasOwnProperty(id)) {
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var flowStateChanged = diff && (diff.added.indexOf(id) !== -1 || diff.removed.indexOf(id) !== -1);
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log.debug("red/nodes/flows.stop : stopping flow : "+id);
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promises.push(activeFlows[id].stop(flowStateChanged?null:stopList,removedList));
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if (type === "full" || flowStateChanged || diff.removed.indexOf(id)!==-1) {
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delete activeFlows[id];
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}
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}
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}
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return Promise.all(promises).then(function() {
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for (id in activeNodesToFlow) {
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if (activeNodesToFlow.hasOwnProperty(id)) {
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if (!activeFlows[activeNodesToFlow[id]]) {
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delete activeNodesToFlow[id];
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}
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}
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}
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if (stopList) {
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stopList.forEach(function(id) {
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delete activeNodesToFlow[id];
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});
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}
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if (!muteLog) {
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if (type !== "full") {
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log.info(log._("nodes.flows.stopped-modified-"+type));
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} else {
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log.info(log._("nodes.flows.stopped-flows"));
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}
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}
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events.emit("nodes-stopped");
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});
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}
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function checkTypeInUse(id) {
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var nodeInfo = typeRegistry.getNodeInfo(id);
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if (!nodeInfo) {
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throw new Error(log._("nodes.index.unrecognised-id", {id:id}));
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} else {
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var inUse = {};
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var config = getFlows();
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config.flows.forEach(function(n) {
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inUse[n.type] = (inUse[n.type]||0)+1;
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});
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var nodesInUse = [];
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nodeInfo.types.forEach(function(t) {
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if (inUse[t]) {
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nodesInUse.push(t);
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}
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});
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if (nodesInUse.length > 0) {
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var msg = nodesInUse.join(", ");
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var err = new Error(log._("nodes.index.type-in-use", {msg:msg}));
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err.code = "type_in_use";
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throw err;
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}
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}
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}
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function updateMissingTypes() {
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var subflowInstanceRE = /^subflow:(.+)$/;
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activeFlowConfig.missingTypes = [];
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for (var id in activeFlowConfig.allNodes) {
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if (activeFlowConfig.allNodes.hasOwnProperty(id)) {
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var node = activeFlowConfig.allNodes[id];
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if (node.type !== 'tab' && node.type !== 'subflow') {
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var subflowDetails = subflowInstanceRE.exec(node.type);
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if ( (subflowDetails && !activeFlowConfig.subflows[subflowDetails[1]]) || (!subflowDetails && !typeRegistry.get(node.type)) ) {
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if (activeFlowConfig.missingTypes.indexOf(node.type) === -1) {
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activeFlowConfig.missingTypes.push(node.type);
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}
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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 addFlow(flow) {
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var i,node;
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if (!flow.hasOwnProperty('nodes')) {
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throw new Error('missing nodes property');
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}
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flow.id = redUtil.generateId();
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var tabNode = {
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type:'tab',
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label:flow.label,
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id:flow.id
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}
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if (flow.hasOwnProperty('info')) {
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tabNode.info = flow.info;
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}
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if (flow.hasOwnProperty('disabled')) {
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tabNode.disabled = flow.disabled;
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}
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var nodes = [tabNode];
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for (i=0;i<flow.nodes.length;i++) {
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node = flow.nodes[i];
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if (activeFlowConfig.allNodes[node.id]) {
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// TODO nls
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return when.reject(new Error('duplicate id'));
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}
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if (node.type === 'tab' || node.type === 'subflow') {
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return when.reject(new Error('invalid node type: '+node.type));
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}
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node.z = flow.id;
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nodes.push(node);
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}
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if (flow.configs) {
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for (i=0;i<flow.configs.length;i++) {
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node = flow.configs[i];
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if (activeFlowConfig.allNodes[node.id]) {
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// TODO nls
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return when.reject(new Error('duplicate id'));
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}
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if (node.type === 'tab' || node.type === 'subflow') {
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return when.reject(new Error('invalid node type: '+node.type));
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}
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node.z = flow.id;
|
|
nodes.push(node);
|
|
}
|
|
}
|
|
var newConfig = clone(activeConfig.flows);
|
|
newConfig = newConfig.concat(nodes);
|
|
|
|
return setFlows(newConfig,'flows',true).then(function() {
|
|
log.info(log._("nodes.flows.added-flow",{label:(flow.label?flow.label+" ":"")+"["+flow.id+"]"}));
|
|
return flow.id;
|
|
});
|
|
}
|
|
|
|
function getFlow(id) {
|
|
var flow;
|
|
if (id === 'global') {
|
|
flow = activeFlowConfig;
|
|
} else {
|
|
flow = activeFlowConfig.flows[id];
|
|
}
|
|
if (!flow) {
|
|
return null;
|
|
}
|
|
var result = {
|
|
id: id
|
|
};
|
|
if (flow.label) {
|
|
result.label = flow.label;
|
|
}
|
|
if (flow.disabled) {
|
|
result.disabled = flow.disabled;
|
|
}
|
|
if (flow.hasOwnProperty('info')) {
|
|
result.info = flow.info;
|
|
}
|
|
if (id !== 'global') {
|
|
result.nodes = [];
|
|
}
|
|
if (flow.nodes) {
|
|
var nodeIds = Object.keys(flow.nodes);
|
|
if (nodeIds.length > 0) {
|
|
result.nodes = nodeIds.map(function(nodeId) {
|
|
var node = clone(flow.nodes[nodeId]);
|
|
if (node.type === 'link out') {
|
|
delete node.wires;
|
|
}
|
|
return node;
|
|
})
|
|
}
|
|
}
|
|
if (flow.configs) {
|
|
var configIds = Object.keys(flow.configs);
|
|
result.configs = configIds.map(function(configId) {
|
|
return clone(flow.configs[configId]);
|
|
})
|
|
if (result.configs.length === 0) {
|
|
delete result.configs;
|
|
}
|
|
}
|
|
if (flow.subflows) {
|
|
var subflowIds = Object.keys(flow.subflows);
|
|
result.subflows = subflowIds.map(function(subflowId) {
|
|
var subflow = clone(flow.subflows[subflowId]);
|
|
var nodeIds = Object.keys(subflow.nodes);
|
|
subflow.nodes = nodeIds.map(function(id) {
|
|
return subflow.nodes[id];
|
|
});
|
|
if (subflow.configs) {
|
|
var configIds = Object.keys(subflow.configs);
|
|
subflow.configs = configIds.map(function(id) {
|
|
return subflow.configs[id];
|
|
})
|
|
}
|
|
delete subflow.instances;
|
|
return subflow;
|
|
});
|
|
if (result.subflows.length === 0) {
|
|
delete result.subflows;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
function updateFlow(id,newFlow) {
|
|
var label = id;
|
|
if (id !== 'global') {
|
|
if (!activeFlowConfig.flows[id]) {
|
|
var e = new Error();
|
|
e.code = 404;
|
|
throw e;
|
|
}
|
|
label = activeFlowConfig.flows[id].label;
|
|
}
|
|
var newConfig = clone(activeConfig.flows);
|
|
var nodes;
|
|
|
|
if (id === 'global') {
|
|
// Remove all nodes whose z is not a known flow
|
|
// When subflows can be owned by a flow, this logic will have to take
|
|
// that into account
|
|
newConfig = newConfig.filter(function(node) {
|
|
return node.type === 'tab' || (node.hasOwnProperty('z') && activeFlowConfig.flows.hasOwnProperty(node.z));
|
|
})
|
|
|
|
// Add in the new config nodes
|
|
nodes = newFlow.configs||[];
|
|
if (newFlow.subflows) {
|
|
// Add in the new subflows
|
|
newFlow.subflows.forEach(function(sf) {
|
|
nodes = nodes.concat(sf.nodes||[]).concat(sf.configs||[]);
|
|
delete sf.nodes;
|
|
delete sf.configs;
|
|
nodes.push(sf);
|
|
});
|
|
}
|
|
} else {
|
|
newConfig = newConfig.filter(function(node) {
|
|
return node.z !== id && node.id !== id;
|
|
});
|
|
var tabNode = {
|
|
type:'tab',
|
|
label:newFlow.label,
|
|
id:id
|
|
}
|
|
if (newFlow.hasOwnProperty('info')) {
|
|
tabNode.info = newFlow.info;
|
|
}
|
|
if (newFlow.hasOwnProperty('disabled')) {
|
|
tabNode.disabled = newFlow.disabled;
|
|
}
|
|
|
|
nodes = [tabNode].concat(newFlow.nodes||[]).concat(newFlow.configs||[]);
|
|
nodes.forEach(function(n) {
|
|
n.z = id;
|
|
});
|
|
}
|
|
|
|
newConfig = newConfig.concat(nodes);
|
|
return setFlows(newConfig,'flows',true).then(function() {
|
|
log.info(log._("nodes.flows.updated-flow",{label:(label?label+" ":"")+"["+id+"]"}));
|
|
})
|
|
}
|
|
|
|
function removeFlow(id) {
|
|
if (id === 'global') {
|
|
// TODO: nls + error code
|
|
throw new Error('not allowed to remove global');
|
|
}
|
|
var flow = activeFlowConfig.flows[id];
|
|
if (!flow) {
|
|
var e = new Error();
|
|
e.code = 404;
|
|
throw e;
|
|
}
|
|
|
|
var newConfig = clone(activeConfig.flows);
|
|
newConfig = newConfig.filter(function(node) {
|
|
return node.z !== id && node.id !== id;
|
|
});
|
|
|
|
return setFlows(newConfig,'flows',true).then(function() {
|
|
log.info(log._("nodes.flows.removed-flow",{label:(flow.label?flow.label+" ":"")+"["+flow.id+"]"}));
|
|
});
|
|
}
|
|
|
|
const flowAPI = {
|
|
getNode: getNode,
|
|
handleError: () => false,
|
|
handleStatus: () => false,
|
|
getSetting: k => process.env[k]
|
|
}
|
|
|
|
|
|
module.exports = {
|
|
init: init,
|
|
|
|
/**
|
|
* Load the current flow configuration from storage
|
|
* @return a promise for the loading of the config
|
|
*/
|
|
load: load,
|
|
|
|
get:getNode,
|
|
eachNode: eachNode,
|
|
|
|
/**
|
|
* Gets the current flow configuration
|
|
*/
|
|
getFlows: getFlows,
|
|
|
|
/**
|
|
* Sets the current active config.
|
|
* @param config the configuration to enable
|
|
* @param type the type of deployment to do: full (default), nodes, flows, load
|
|
* @return a promise for the saving/starting of the new flow
|
|
*/
|
|
setFlows: setFlows,
|
|
|
|
/**
|
|
* Starts the current flow configuration
|
|
*/
|
|
startFlows: start,
|
|
|
|
/**
|
|
* Stops the current flow configuration
|
|
* @return a promise for the stopping of the flow
|
|
*/
|
|
stopFlows: stop,
|
|
|
|
get started() { return started },
|
|
|
|
// handleError: handleError,
|
|
// handleStatus: handleStatus,
|
|
|
|
checkTypeInUse: checkTypeInUse,
|
|
|
|
addFlow: addFlow,
|
|
getFlow: getFlow,
|
|
updateFlow: updateFlow,
|
|
removeFlow: removeFlow,
|
|
disableFlow:null,
|
|
enableFlow:null
|
|
|
|
};
|