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node-red/packages/node_modules/@node-red/editor-api/lib/index.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
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*
* 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.
**/
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/**
* This module provides an Express application to serve the Node-RED editor.
*
* It implements the Node-RED HTTP Admin API the Editor uses to interact
* with the Node-RED runtime.
*
* @namespace @node-red/editor-api
*/
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var express = require("express");
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var bodyParser = require("body-parser");
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var util = require('util');
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var passport = require('passport');
var when = require('when');
var cors = require('cors');
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var auth = require("./auth");
var apiUtil = require("./util");
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var adminApp;
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var server;
var editor;
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/**
* Initialise the module.
* @param {Object} settings The runtime settings
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* @param {HTTPServer} _server An instance of HTTP Server
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* @param {Storage} storage An instance of Node-RED Storage
* @param {Runtime} runtimeAPI An instance of Node-RED Runtime
* @memberof @node-red/editor-api
*/
function init(settings,_server,storage,runtimeAPI) {
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server = _server;
if (settings.httpAdminRoot !== false) {
adminApp = express();
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var cors = require('cors');
var corsHandler = cors({
origin: "*",
methods: "GET,PUT,POST,DELETE"
});
adminApp.use(corsHandler);
if (settings.httpAdminMiddleware) {
if (typeof settings.httpAdminMiddleware === "function") {
adminApp.use(settings.httpAdminMiddleware)
}
}
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auth.init(settings,storage);
var maxApiRequestSize = settings.apiMaxLength || '5mb';
adminApp.use(bodyParser.json({limit:maxApiRequestSize}));
adminApp.use(bodyParser.urlencoded({limit:maxApiRequestSize,extended:true}));
adminApp.get("/auth/login",auth.login,apiUtil.errorHandler);
if (settings.adminAuth) {
if (settings.adminAuth.type === "strategy") {
auth.genericStrategy(adminApp,settings.adminAuth.strategy);
} else if (settings.adminAuth.type === "credentials") {
adminApp.use(passport.initialize());
adminApp.post("/auth/token",
auth.ensureClientSecret,
auth.authenticateClient,
auth.getToken,
auth.errorHandler
);
}
adminApp.post("/auth/revoke",auth.needsPermission(""),auth.revoke,apiUtil.errorHandler);
}
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// Editor
if (!settings.disableEditor) {
editor = require("./editor");
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var editorApp = editor.init(server, settings, runtimeAPI);
adminApp.use(editorApp);
}
if (settings.httpAdminCors) {
var corsHandler = cors(settings.httpAdminCors);
adminApp.use(corsHandler);
}
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var adminApiApp = require("./admin").init(settings, runtimeAPI);
adminApp.use(adminApiApp);
} else {
adminApp = null;
}
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}
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/**
* Start the module.
* @return {Promise} resolves when the application is ready to handle requests
* @memberof @node-red/editor-api
*/
function start() {
if (editor) {
return editor.start();
} else {
return when.resolve();
}
}
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/**
* Stop the module.
* @return {Promise} resolves when the application is stopped
* @memberof @node-red/editor-api
*/
function stop() {
if (editor) {
editor.stop();
}
return when.resolve();
}
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module.exports = {
init: init,
start: start,
stop: stop,
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/**
* @memberof @node-red/editor-api
* @mixes @node-red/editor-api_auth
*/
auth: {
needsPermission: auth.needsPermission
},
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/**
* The Express app used to serve the Node-RED Editor
* @type ExpressApplication
* @memberof @node-red/editor-api
*/
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get httpAdmin() { return adminApp; }
};