server.js

/*
    Copyright 2020 NetFoundry Inc.

    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

    https://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.
*/

import express from 'express';
import fs from 'fs';
import fse from 'fs-extra';
import path from 'path';
import session from 'express-session';
import sessionStoreFactory from 'session-file-store';
import fileUpload from 'express-fileupload';
import bodyParser from 'body-parser';
import cors from 'cors';
import external from 'request';
import moment from 'moment';
import Influx from 'influx';
import helmet from 'helmet';
import https from 'https';
import $RefParser from '@apidevtools/json-schema-ref-parser';
import nodemailer from 'nodemailer';
import {fileURLToPath} from 'url';
import crypto from 'crypto';
import compression from 'compression';
import _ from 'lodash';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const sessionStore = sessionStoreFactory(session);
const __assets = '/dist/ziti-console-lib/assets';
const __html = '/dist/ziti-console-lib/assets/html';

const rateLimiter = (windowMs, maxRequests) => {
	const requests = {};

	return (req, res, next) => {
		const ip = req.ip;
		const now = Date.now();

		if (!requests[ip]) {
			requests[ip] = { count: 0, startTime: now };
		}

		const requestData = requests[ip];

		if (now - requestData.startTime > windowMs) {
			requestData.count = 0;
			requestData.startTime = now;
		}

		requestData.count++;

		if (requestData.count > maxRequests) {
			return res.status(429).send('Too Many Requests');
		}

		next();
	};
};

const loadModule = async (modulePath) => {
	try {
	  return await import(modulePath)
	} catch (e) {
	  throw new Error(`Unable to import module ${modulePath}`)
	}
}

const processControllerUrls = (urlString) => {
	if (!urlString) {
		return [];
	}
	const urls = urlString.split(',').map(url => url.trim());
	const validUrls = urls.map(url => {
		// If the controller URL doesn't have a protocol, prepend 'https://'
		if (!/^https?:\/\//i.test(url)) {
			url = 'https://' + url;
		}
		try {
			const validatedUrl = new URL(url);
			const ctrlUrl = validatedUrl.toString().replace(/\/$/, '');
			const setting = { name: ctrlUrl, url: ctrlUrl, default: false };
			return setting;
		} catch (error) {
			log(`Invalid URL: ${url}`);
			return null;
		}
	}).filter(Boolean) || [];
	return validUrls;
};

var ziti;
const zitiServiceName = process.env.ZITI_SERVICE_NAME || 'zac';
const zitiIdentityFile = process.env.ZITI_IDENTITY_FILE;

const integration = _.get(process, 'argv[2]') || "node-api";

try {
	ziti = await loadModule('@openziti/ziti-sdk-nodejs')
} catch (e) {
	if (typeof zitiIdentityFile !== 'undefined') {
		console.error(e);
		process.exit();
	}
}

var zitified = false;
if ((typeof zitiIdentityFile !== 'undefined') && (typeof zitiServiceName !== 'undefined')) {
	zitified = true;
}
if (zitified) {
	await ziti.init( zitiIdentityFile ).catch(( err ) => { process.exit(); }); // Authenticate ourselves onto the Ziti network using the specified identity file
}

const packageJsonRaw = fs.readFileSync("./package.json", 'utf8');
const packageJson = JSON.parse(packageJsonRaw);
const zacVersion = packageJson.version;

var serviceUrl = "";
var baseUrl = "";
var onlyDeleteSelfController = true;
var isDebugging = false;
var tlsServer;

var errors = {
	access: "You Do Not Have Access To Perform This Operations",
	invalidServer: "Invalid Edge Controller"
}

/**
 * Define Express Settings
 */
var app = express();								// using raw  networking

if (zitified) {
	app = ziti.express( express, zitiServiceName );	// using Ziti networking
}
var corsOptions = {
  origin: '*',
  optionsSuccessStatus: 200,
  //credentials: true,
  //allowedHeaders: 'Accept, Content-Type, Accept-Encoding, Accept-Language, Access-Control-Request-Headers, Access-Control-Request-Method, Connection, Host, Origin, Referer, Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site, User-Agent'
}
var helmetOptions = {
    contentSecurityPolicy: {
      directives: {
        defaultSrc: ["'self'", 'www.googletagmanager.com', 'openstreetmap.org'],
        styleSrc: ["'self'", 'www.googletagmanager.com', 'www.google-analytics.com', 'openstreetmap.org', "'unsafe-inline'"],
        scriptSrc: ["'self'", 'www.googletagmanager.com', 'www.google-analytics.com', 'openstreetmap.org', "'unsafe-inline'"],
		scriptSrcAttr: ["'self'", 'www.googletagmanager.com', 'www.google-analytics.com', 'openstreetmap.org', "'unsafe-inline'"],
        imgSrc: ["'self'", 'www.googletagmanager.com', 'www.google-analytics.com', 'openstreetmap.org', 'b.tile.opernstreetmap.org', 'data:', 'blob:', 'https:'],
        connectSrc: ["'self'", 'www.googletagmanager.com', 'www.google-analytics.com', 'openstreetmap.org', 'ws:', 'wss:'],
        frameSrc: ["'self'", 'www.googletagmanager.com', 'openstreetmap.org'],
        frameAncestors: ["'self'", 'www.googletagmanager.com', 'openstreetmap.org'],
        mediaSrc: ["'self'", 'www.googletagmanager.com', 'openstreetmap.org', 'data:', 'blob:', 'https:'],
      },
    },
    frameguard: { action: 'SAMEORIGIN' },
	crossOriginEmbedderPolicy: false
};

if (integration !== 'classic') {
	helmetOptions.contentSecurityPolicy.directives.scriptSrc.push("'unsafe-eval'");
	helmetOptions.contentSecurityPolicy.directives.scriptSrcAttr.push("'unsafe-eval'");
}

app.use("/assets", express.static(__dirname + __assets , {
	maxAge: '31536000000' 
}));
if (`${process.env.ALLOW_HTTP}`.toLowerCase() !== "true") {
	app.use(cors(corsOptions));
	app.use(helmet(helmetOptions));
} else {
	console.log("ALLOW_HTTP - skipping cors/helmet");
}
app.use(compression());
app.use(function(req, res, next) {
    return next();
});
app.use(bodyParser.json());
app.use(fileUpload());
app.use(session({ 
	store: new sessionStore({}), 
	secret: 'NetFoundryZiti', 
	retries: 0, 
	resave: true, 
	saveUninitialized: true, 
	ttl: 60000, 
	logFn: () => {}
}));
app.use(function (req, res, next) {
	res.setHeader('X-XSS-Protection', '1; mode=block');
	next();
});


/**
 * Load configurable settings, or create the settings in place if they have never been defined
 */
var initial = JSON.parse(fs.readFileSync(path.join(__dirname,__assets,"data","settings.json")));

var port = initial.port;
var bindIP = initial.bindIP;
var portTLS = initial.portTLS;
var updateSettings = initial.update;
var settingsPath = initial.location;
var rejectUnauthorized = false;
var emailRegEx = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/;

/**
 * Override Launch Settings
 */
if (process.env.SETTINGS) settingsPath = process.env.SETTINGS;
if (process.env.UPDATESETTINGS) updateSettings = process.env.UPDATESETTINGS;

for (var i=0; i<process.argv.length; i++) {
	if (process.argv[i]!=null) {
		if (process.argv[i].toLowerCase()=="debug") {
			isDebugging = true;
		} else {
			var options = process.argv[i].split('=');
			if (options.length==2) {
				if (options[0].toLowerCase()=="update"&&options[1]=="true") updateSettings=true;
				else if (options[0].toLowerCase()=="location") settingsPath=true;
			}
		}
	} 
}

if (settingsPath.indexOf("/")!=0) settingsPath = "/"+settingsPath;
if (!settingsPath.endsWith("/")) settingsPath = settingsPath+"/";
if (!fs.existsSync(__dirname+settingsPath)) {
	fs.mkdirSync(__dirname+settingsPath);
}
if (fs.existsSync(__dirname+settingsPath+'settings.json')&&updateSettings) {
	console.log("Updating Settings File - Backing Up Previous Settings");
	fs.renameSync(__dirname+settingsPath+'settings.json', __dirname+settingsPath+'settings.'+moment().unix());
}
if (!fs.existsSync(__dirname+settingsPath+'settings.json')) {
	fs.copyFileSync(__dirname+__assets + '/data/settings.json', __dirname+settingsPath+'settings.json');
}

var settings = JSON.parse(fs.readFileSync(__dirname+settingsPath+'settings.json', 'utf8'));

if (settings.port && !isNaN(settings.port)) port = settings.port;
if (settings.portTLS && !isNaN(settings.portTLS)) portTLS = settings.portTLS;
if (settings.rejectUnauthorized && !isNaN(settings.rejectUnauthorized)) rejectUnauthorized = settings.rejectUnauthorized;

if (process.env.ZAC_CONTROLLER_URLS) {
	const zacControllerUrlsVar = process.env.ZAC_CONTROLLER_URLS;
	let zacControllerUrls = processControllerUrls(zacControllerUrlsVar);
	zacControllerUrls = zacControllerUrls.filter((envController) => {
		let ctrlExists = false;
		if (settings.edgeControllers) {
			settings.edgeControllers.forEach((settingsController) => {
				if (envController.url === settingsController.url) {
					ctrlExists = true;
				}
			});
		}
		return !ctrlExists;
	});
	settings.edgeControllers = [...settings.edgeControllers, ...zacControllerUrls];
}

if (process.env.PORT) port = process.env.PORT;
if (process.env.PORTTLS) portTLS = process.env.PORTTLS;

for (var i=0; i<process.argv.length; i++) {
	var options = process.argv[i].split('=');
	if (options.length==2) {
		if (options[0].toLowerCase()=="port"&&!isNaN(options[1])) port = options[1];
		else if (options[0].toLowerCase()=="porttls"&&!isNaN(options[1])) portTLS = options[1];
		
		if (options[0].toLowerCase()=="editable") {
			if (options[1]=="true") settings.editable = true;
			else settings.editable = false;
		}
	}
}

console.log(settings);

for (var i=0; i<settings.edgeControllers.length; i++) {
	if (settings.edgeControllers[i].default) {
		serviceUrl = settings.edgeControllers[i].url;
		break;
	}
}

var transporter;

if (settings.mail && settings.mail.host && settings.mail.host.trim().length>0) {
	console.log("Setting up Mailer from "+settings.mail.host);
	transporter = nodemailer.createTransport(settings.mail);
}



/**------------- Authentication Section -------------**/
app.get("/sso", (request, response) => {
	var controller = request.query.controller;
	var session = request.query.session;
	baseUrl = controller;
	request.session.baseUrl = baseUrl;
	GetPath().then((prefix) => {
		serviceUrl = baseUrl+prefix;
		request.session.serviceUrl = serviceUrl;
		request.session.user = session
		request.session.authorization = 100;
		console.log(baseUrl, request.session.user);
		response.redirect("/");
	}).catch((error) => {
		console.log(error);
		response.redirect("/login");
	});
});

/**
 * Just tests if the user exists as a session or not, would add on to validate roles, etc if the system is expanded to 
 * include more well defined authentication structures
 * @param {The current user session} user 
 */
function hasAccess(user) {
	return (user!=null);
}

/**
 * Authentication method, authenticates the user to the provided edge controller defined by url
 */
app.post("/api/login", function(request, response) {
	var urlToSet = request.body.url;
	if (!IsServerDefined(urlToSet)) response.json({error: errors.invalidServer });
	else {
		baseUrl = urlToSet;
		request.session.baseUrl = baseUrl;
		GetPath().then((prefix) => {
			serviceUrl = urlToSet+prefix;
			request.session.serviceUrl = serviceUrl;
			//request.session.creds = {
			//	username: request.body.username,
			//	password: request.body.password
			//};
			Authenticate(request).then((results) => {
				response.json(results);
			});
		}).catch((error) => {
			response.json({error: error});
		});
	}
});

if (integration === 'edge-api') {
    app.use(bodyParser.urlencoded({extended:false}));

    app.use('/', express.static(__dirname + '/dist/app-ziti-console'));
    app.use('/:name', express.static(__dirname + '/dist/app-ziti-console'));
} else {
    app.use(bodyParser.urlencoded({extended:false}));
    app.use('/', express.static(__dirname + '/dist/app-ziti-console-node'));
    app.use('/:name', express.static(__dirname + '/dist/app-ziti-console-node'));
}

app.post("/api/logout", function(request, response) {
    request.session.user = null;
    response.send({
        success: true,
        message: 'Logout Successful'
    });
});

function Authenticate(request) {
	return new Promise(function(resolve, reject) {
		if (!baseUrl||baseUrl.trim().length==0&&request.session.baseUrl) baseUrl = request.session.baseUrl;
		if (!serviceUrl||serviceUrl.trim().length==0&&request.session.serviceUrl) serviceUrl = request.session.serviceUrl;
		let params = {
			username: request.body.username,
			password: request.body.password
		};
		log("Connecting to: "+serviceUrl+"/authenticate?method=password");
		//if (request.session.creds != null) {
			external.post(serviceUrl+"/authenticate?method=password", {json: params , rejectUnauthorized: rejectUnauthorized }, function(err, res, body) {
				if (err) {
					log(err);
					var error = "Server Not Accessible";
					if (err.code!="ECONNREFUSED") resolve( {error: err.code} );
					resolve( {error: error} );
				} else {
					if (body.error) resolve( {error: body.error.message} );
					else {
						if (body.data&&body.data.token) {
							request.session.user = body.data.token;
							request.session.authorization = 100;
							resolve( {success: "Logged In"} );
						} else resolve( {error: "Invalid Account"} );
					}
				}				
			});
		//}
	});
}

/**
 * Return the server path to the services
 * 
 * @returns The path to the services
 */
function GetPath() {
	return new Promise(function(resolve, reject) {
		external.get(baseUrl+"/edge/management/v1/version", {rejectUnauthorized: rejectUnauthorized}, function(err, res, body) {
			try {
				var data = JSON.parse(body);
				resolve(data.data.apiVersions["edge-management"].v1.path);
			} catch (e) {
				log("Invalid Json Result on Version: "+e);
				reject("Invalid Management Api<br/><span style='font-size:12px; font-weight: normal;'>Please confirm the provided Edge Controller host:port is accurate.</span>");
			}
		});
	});
}

/**
 * Returned the version of the edge-controller server
 */
app.post('/api/version', function(request, response) {
	log("Checking Version: "+baseUrl+"/version");
	if (baseUrl) {
		external.get(baseUrl+"/version", {rejectUnauthorized: rejectUnauthorized}, function(err, res, body) {
			if (err) log(err);
			else {
				try {
					var data = JSON.parse(body);
					log("Version: "+body);
					GetPath().then((fullPath) => {
						if (data&&data.data) response.json( {data: data.data, serviceUrl: fullPath, zac: zacVersion, requireAuth: onlyDeleteSelfController, baseUrl: baseUrl} );
						else response.json({});
					});
				} catch (e) {
					log("Invalid Json Result on Version: "+e);
					response.json({});
				}
			}
		});
	} else response.json({zac: zacVersion});
});

/**
 * Reset the current users password
 */
app.post("/api/reset", function(request, response) {
	if (serviceUrl==null||serviceUrl.length==0) response.json({error:"loggedout"});
	else {
		if (request.body.newpassword!=request.body.confirm) response.json({error: "Password does not match confirmation"});
		else {
			log("Connecting to: "+serviceUrl+"/current-identity/authenticators?filter=method=\"updb\"");
			external.get(serviceUrl+"/current-identity/authenticators?filter=method=\"updb\"", {rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user }}, function(err, res, body) {
				if (err) {
					log(err);
					var error = "Server Not Accessible";
					if (err.code!="ECONNREFUSED") response.json( {error: err.code} );
					response.json( {error: error} );
				} else {
					var data = JSON.parse(body);
					if (data.error) {
						log(JSON.stringify(data.error));
						response.json( {error: data.error.message} );
					} else {
						if (data.data.length>0) {
							var id = data.data[0].id;
							var params = {
								currentPassword: request.body.password,
								password: request.body.newpassword,
								username: data.data[0].username
							}
							log("Connecting to: "+serviceUrl+"/current-identity/authenticators/"+id);
							external.put(serviceUrl+"/current-identity/authenticators/"+id, {json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user }}, function(err, res, body) {
								if (err) {
									log(err);
									var error = "Server Not Accessible";
									if (err.code!="ECONNREFUSED") response.json( {error: err.code} );
									response.json( {error: error} );
								} else {
									if (body.error) {
										log(JSON.stringify(body.error));
										response.json( {error: body.error.message} );
									} else response.json( {success: "Password Updated"} );
								}
							});
						} else {
							response.json({ error: "Unknown User" });
						}
					}
				}
			});
		}
	}
});



/**------------- Server Settings Section -------------**/



/**
 * Tests whether the service url exists in the system to prevent hitting unknown server sources
 * 
 * @param {The Url to check if it exists in the configuration} url 
 */
function IsServerDefined(url) {
	for (var i=0; i<settings.edgeControllers.length; i++) {
		if (settings.edgeControllers[i].url==url) return true;
	}
	return false;
}

/**
 * Get Language File
 */
app.post("/api/language", (request, response) => {
	var locale = request.body.locale;
	if (fs.existsSync(__assets + '/languages/'+locale+'.json')) {
		response.sendFile(path.resolve(__dirname+__assets + '/languages/'+locale+'.json'));
	} else {
		response.sendFile(path.resolve(__dirname+__assets + '/languages/en-us.json'));
	}
});

/**
 * Returns the current system settings
 */
app.post("/api/settings", function(rewwquest, response) {
	var toReturn = settings;
	delete toReturn.mail;
	delete toReturn.to;
	delete toReturn.from;
	delete toReturn.location;
	delete toReturn.update;
	delete toReturn.rejectUnauthorized;
	delete toReturn.port;
	delete toReturn.portTLS;
	response.json(toReturn);
});

/**
 * Save controller information to the settings file if the server exists
 * Limit 100 requests per minute
 */
app.post("/api/controllerSave", rateLimiter(60000, 100), function(request, response) {
	const name = request.body.name.trim().replace(/[^a-zA-Z0-9 \-]/g, '');
	let url = request.body.url.trim();
	url = url.split('#').join('').split('?').join('');
	if (url.endsWith('/')) url = url.substr(0, url.length-1);
	if (url.length==0) errors[errors.length] = "url";
	var errors = [];
	if (name.length==0) errors[errors.length] = "name";
	if (errors.length>0) {
		response.json({ errors: errors });
	} else {
		log("Updating Edge Controllers Setting: "+request.body);
		var found = false;
		for (var i=0; i<settings.edgeControllers.length; i++) {
			if (settings.edgeControllers[i].url==url) {
				found = true;
				settings.edgeControllers[i].name = name;
				break;
			}
		}
		if (!found) {
			log("Controller not found in pre-defined list. Ignoring..: "+request.body);
		}
		fs.writeFileSync(__dirname+settingsPath+'/settings.json', JSON.stringify(settings));
		response.json({edgeControllers: settings.edgeControllers});
	}
});

/**
 * Remove the server definition (fabric or edge controller) from the settings
 * based on the passed in url parameter
 */
app.delete("/api/server", function(request, response) {
	var user = request.session.user;
	if (hasAccess(user)) {
		var url = request.body.url;
		var edges = [];
		var fabrics = [];
		log(url+" "+baseUrl);
		if (baseUrl==url || !onlyDeleteSelfController) {
			for (var i=0; i<settings.edgeControllers.length; i++) {
				log(settings.edgeControllers[i].url);
				if (settings.edgeControllers[i].url!=url) {
					edges[edges.length] = settings.edgeControllers[i];
				}
			}
			settings.edgeControllers = edges;
			// fs.writeFileSync(__dirname+settingsPath+'/settings.json', JSON.stringify(settings));

			response.json(settings);
		} else response.json({error: "You must be logged into the controller to remove it"});
	}
});

/**
 * Set the current controller to use
 */
app.post("/api/controller", function(request, response) {
	var urlToSet = request.body.url;
	if (!IsServerDefined(urlToSet)) response.json({error: errors.invalidServer });
	else serviceUrl = urlToSet;
});



/**------------- Server One Off Functions -------------**/

/**
 * Remove MFA from an identity
 */
app.delete("/api/mfa", function(request, response) {
	var user = request.session.user;
	if (hasAccess(user)) {
		var id = request.body.id;
		///Authenticate(request).then((result) => {
			external.delete(serviceUrl+"/identities/"+id.trim()+"/mfa", {rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
				if (err) {
					log("Error: "+JSON.stringify(body.err));
					response.json({error: err});
				} else {
					log("Success: "+JSON.stringify(body.data));
					response.json({success: "MFA Removed"});
				}
			});
		//});
	}
});

/**
 * Reset the identity bound authenticators enrollment status
 */
app.post("/api/resetEnroll", function(request, response) {
	var user = request.session.user;
	if (hasAccess(user)) {
		var id = request.body.id;
		var date = moment(request.body.date).utc().toISOString();
		var url = serviceUrl+"/authenticators/"+id.trim()+"/re-enroll";
		var params = { expiresAt: date };
		log("Calling "+url);
		log(JSON.stringify(params));
		external.post(url, { json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
			if (body.error) HandleError(response, body.error);
			else {
				log("Success: "+JSON.stringify(body));
				response.json({success: "Enrollment Reset"});
			}
		});
	}
});

/**
 * Reissue the identity enrollment token
 */
app.post("/api/reissueEnroll", function(request, response) {
	var user = request.session.user;
	if (hasAccess(user)) {
		var id = request.body.id;
		var date = moment(request.body.date).utc().toISOString();
		var url = serviceUrl+ `/enrollments/${id}/refresh`;
		var params = { expiresAt: date };
		log("Calling "+url);
		log(JSON.stringify(params));
		external.post(url, { json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
			if (body.error) HandleError(response, body.error);
			else {
				log("Success: "+JSON.stringify(body));
				response.json({success: "Enrollment Reissued"});
			}
		});
	}
});

/**------------- Server Search Section -------------**/


/**
 * Staight call for uncommon calls to the edge controller
 */
app.post("/api/call", function(request, response) {
	log("Calling: "+serviceUrl+"/"+request.body.url);
	//Authenticate(request).then((results) => {
		external.get(serviceUrl+"/"+request.body.url, {json: {}, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
			if (err) {
				log("Error: "+JSON.stringify(err));
				response.json({ error: err });
			} else {
				if (body.error) HandleError(response, body.error);
				else if (body.data) {
					response.json( body );
				} else {
					body.data = [];
					response.json( body );
				}
			}
		});
	//});
});

/**
 * Get the data from the edge controller based on the type of object and the 
 * defined search parameters
 */
app.post("/api/data", function(request, response) {
	var type = request.body.type;
	var paging = request.body.paging;
	GetItems(type, paging, request, response);
});

/**
 * Call a service if expired, try to reauthenticate and try again.
 * 
 * @param {The url of the service to call} url 
 * @param {The Json object to send} json 
 * @param {The Server Request Object} request 
 * @param {True if this is the first callattempt} isFirst 
 * @returns 
 */
function DoCall(url, json, request, isFirst=true) {
	return new Promise(function(resolve, reject) {
		log("Calling: "+url+" "+isFirst+" "+request.session.user);
		external.get(url, {json: json, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
			if (err) {
				log("Server Error: "+JSON.stringify(err));
				resolve({ error: err });
			} else {
				if (body.error) {
					if (isFirst) {
						log("Re-authenticate User");
						//Authenticate(request).then((results) => {
							DoCall(url, json, request, false).then((results) => {
								resolve(results);
							});
						//});
					} else resolve(body);
				} else if (body.data) {
					log("Items Returned: "+body.data.length);
					resolve(body);
				} else {
					log("No Items");
					if (typeof body === 'string' || body instanceof String) {
						let toReturn = {
							error: body,
							data: []
						}
						resolve(toReturn);
					} else {
						body.data = [];
						resolve(body);
					}
				}
			}
		});
	});
}

/**
 * Get the data from the edge controller
 * 
 * @param {The type of object to search for (identity, router, gateway, etc)} type 
 * @param {Paging request parameters (see edge controller API docs)} paging 
 * @param {The server request object} request 
 * @param {The server response object} response 
 */
function GetItems(type, paging, request, response, cli, serviceCall) {
	if (request.body.url) {
		GetSubs(request.body.url.split("./").join(""), request.body.type, "", "", request, response);
	} else {
		var urlFilter = "";
		var toSearchOn = "name";
		var noSearch = false;
		if (paging && paging.sort!=null) {
			if (paging.searchOn) toSearchOn = paging.searchOn;
			if (paging.noSearch) noSearch = true;
			if (!paging.filter) paging.filter = "";
			if (!paging.rawFilter) paging.filter = paging.filter.split('#').join('');
			if (noSearch) {
				if (paging.page!=-1) urlFilter = "?limit="+paging.total+"&offset="+((paging.page-1)*paging.total);
			} else {
				if (paging.rawFilter) {
					urlFilter = "?filter=" + paging.filter.trim();
					if (paging.total) {
						urlFilter += "&limit="+paging.total;
					}
					if (paging.page) {
						urlFilter += "&offset="+((paging.page-1)*paging.total);
					}
					if (paging.sort) {
						urlFilter += "&sort="+paging.sort+" "+paging.order;
					}
				} else if (paging.page!=-1) urlFilter = "?filter=("+toSearchOn+" contains \""+paging.filter+"\")&limit="+paging.total+"&offset="+((paging.page-1)*paging.total)+"&sort="+paging.sort+" "+paging.order;
				if (paging.params) {
					for (var key in paging.params) {
						urlFilter += ((urlFilter.length==0)?"?":"&")+key+"="+paging.params[key];
					}
				}
			}
		}
		if (serviceUrl==null||serviceUrl.trim().length==0) response.json({error:"loggedout"});
		else {
			DoCall(serviceUrl+"/"+type+urlFilter, {}, request, true).then((results) => {
				if (results.error) HandleError(response, results.error);
				else response.json(results);
			});
		}
	}
}

/**
 * Get all of the sub objects associated with a parent objects, like all of the services defined in an AppWAN
 */
app.post("/api/dataSubs", function(request, response) {
	var id = request.body.id;
	var type = request.body.type;
	if (request.body.url) {
		var url = request.body.url.href.split("./").join("");
		DoCall(serviceUrl+"/"+url+"?limit=99999999&offset=0&sort=name ASC", {}, request, true).then((results) => {
			if (results.error) HandleError(response, results.error);
			else response.json({
				id: id,
				type: type,
				data: results.data
			});
		});
	} else response.json( {error: "Invalid Sub Data Url"});
});

/**
 * Get the data directly from a provided link from the json _links returned from
 * the edge controller parent data call.
 */
app.post("/api/subdata", function(request, response) {
	var url = request.body.url.split("./").join("");
	var id = request.body.id;
	var type = request.body.type;
	var parentType = request.body.name;
	GetSubs(url, type, id, parentType, request, response);
});

function GetSubs(url, type, id, parentType, request, response) {
	log("Calling: "+serviceUrl+"/"+url);
	//Authenticate(request).then((results) => {
		external.get(serviceUrl+"/"+url, {json: {}, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
			if (err) response.json({ error: err });
			else {
				log("Returned: "+JSON.stringify(body));
				response.json({ 
					id: id,
					parent: parentType,
					type: type,
					data: body.data
				});
			}
		});
	//});
}

app.post("/api/jwt", function(request, response) {
	var id = request.body.id;
	var type = request.body.type;
	//Authenticate(request).then((results) => {
		var url = serviceUrl+"/"+type+"/"+id+"/jwt";
		log("Calling: "+url);
		external.get(url, {json: {}, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
			response.json({id: id, jwt: body});
		});
	//});
});

app.post("/api/network-jwts", function(request, response) {
	var id = request.body.id;
	var type = request.body.type;
	//Authenticate(request).then((results) => {
	var url = serviceUrl+"/network-jwts";
	log("Calling: "+url);
	external.get(url, {json: {}, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
		response.json({jwt: body.data[0]?.token});
	});
	//});
});

/**------------- Data Save Section -------------**/

function HandleError(response, error) {
	log(error);
	if (error.cause&&error.causeMessage&&error.causeMessage.length>0) response.json({ error: error.causeMessage, errorObj: error });
	else if (error.cause&&error.cause.message&&error.cause.message.length>0) response.json({ error: error.cause.message, errorObj: error });
	else if (error.cause&&error.cause.reason&&error.cause.reason.length>0) response.json({ error: error.cause.reason, errorObj: error });
	else if (error.message&&error.message.length>0) response.json({ error: error.message, errorObj: error });
	else response.json({ error: error, errorObj: error });
}

/**
 * Quick create a simple service and return what occurred
 */
app.post("/api/service", async function(request, response) {
	if (serviceUrl==null||serviceUrl.length==0) response.json({error:"loggedout"});
	else {
		var name = request.body.name;
		var protocol = request.body.protocol;
		var host = request.body.host;
		var port = Number(request.body.port);
		var encrypt = request.body.encrypt;
		var zitiHost = request.body.zitiHost;
		var zitiPort = Number(request.body.zitiPort);
		var hosted = request.body.hosted;
		var access = request.body.access;

		var user = request.session.user;

		var rootName = name.trim().replace(/[^a-z0-9 ]/gi, '').split(' ').join('-');
		var clientName = rootName+"-Client";
		var serverName = rootName+"-Server";
		var dialPolicyName = rootName+"-DialPolicy";
		var bindPolicyName = rootName+"-BindPolicy";

		var serverConfig = {
			hostname: host,
			port: port,
			protocol: protocol
		};
		var clientConfig = {
			hostname: zitiHost,
			port: zitiPort
		};

		var clientConfigId = await GetConfigId(request, response, serviceUrl, user, "ziti-tunneler-client.v1");
		var serverConfigId = await GetConfigId(request, response, serviceUrl, user, "ziti-tunneler-server.v1");
		
		var serverData = await CreateConfig(request, response, user, serviceUrl, serverConfigId, serverName, serverConfig);
		var clientData = await CreateConfig(request, response, user, serviceUrl, clientConfigId, clientName, clientConfig);
		var serverId = serverData.id;
		var clientId = clientData.id;

		var serviceData = await CreateService(request, response, serviceUrl, user, name, encrypt, serverId, clientId);		
		var serviceId = serviceData.id;
		
		var bindData = await CreateServerPolicy(request, response, serviceUrl, user, bindPolicyName, "@"+serviceId, hosted);
		var dialData = await CreateClientPolicy(request, response, serviceUrl, user, dialPolicyName, "@"+serviceId, access);
		
		var bindId = bindData.id;
		var dialId = dialData.id;

		var toReturn = {
			data: [],
			cli: [],
			services: []
		};
	
		var logs = [];
		logs.push({name: serverName, id: serverId, type: "Config"});
		logs.push({name: clientName, id: clientId, type: "Config"});
		logs.push({name: name, id: serviceId, type: "Service"});
		logs.push({name: bindPolicyName, id: bindId, type: "Policy"});
		logs.push({name: dialPolicyName, id: dialId, type: "Policy"});
		toReturn.data = logs;
		toReturn.cli.push(serverData.cli);
		toReturn.cli.push(clientData.cli);
		toReturn.cli.push(serviceData.cli);
		toReturn.cli.push(bindData.cli);
		toReturn.cli.push(dialData.cli);

		toReturn.services.push(serverData.service);
		toReturn.services.push(clientData.service);
		toReturn.services.push(serviceData.service);
		toReturn.services.push(bindData.service);
		toReturn.services.push(dialData.service);
		response.json(toReturn);
	}
});

async function CreateClientPolicy(request, respone, url, user, name, serviceId, access) {
	return new Promise(function(resolve, reject) {
		if (hasAccess(user)) {
			//Authenticate(request).then((results) => {
				if (hasAccess(user)) {
					var params = {
						name: name,
						type: "Dial",
						semantic: "AnyOf",
						serviceRoles: [serviceId],
						identityRoles: access
					};
					log("Saving As: POST "+JSON.stringify(params));
					external(url+"/service-policies", {method: "POST", json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
						log(JSON.stringify(body));
						let cli = "ziti edge create service-policy '"+name+"' Dial --service-roles '"+serviceId+"' --identity-roles '"+access.toString()+"'";
						let serviceCall = {
							url: url+"/service-policies",
							params: params
						};
						var item = {
							id: "",
							cli: cli,
							service: serviceCall
						}
						if (body.data) item.id = body.data.id;
						resolve(item);
					});
				}
			//});
		}
	});
}

async function CreateServerPolicy(request, respone, url, user, name, serviceId, hosted) {
	return new Promise(function(resolve, reject) {
		if (hasAccess(user)) {
			//Authenticate(request).then((results) => {
				if (hasAccess(user)) {
					var params = {
						name: name,
						type: "Bind",
						semantic: "AnyOf",
						serviceRoles: [serviceId],
						identityRoles: hosted
					};
					log("Saving As: POST "+JSON.stringify(params));
					external(url+"/service-policies", {method: "POST", json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
						log(JSON.stringify(body));
						let cli = "ziti edge create service-policy '"+name+"' Bind --semantic AnyOf --service-roles '"+serviceId+"' --identity-roles '"+hosted.toString()+"'";
						let serviceCall = {
							url: url+"/service-policies",
							params: params
						};
						var item = {
							id: "",
							cli: cli,
							service: serviceCall
						}
						if (body.data) item.id = body.data.id;
						resolve(item);
					});
				}
			//});
		}
	});
}

async function CreateService(request, respone, url, user, name, encrypt, serverId, clientId) {
	return new Promise(function(resolve, reject) {
		//Authenticate(request).then((results) => {
			if (hasAccess(user)) {
				var params = {
					name: name,
					configs: [serverId, clientId],
					encryptionRequired: encrypt
				};
				log("Saving As: POST "+JSON.stringify(params));
				external(url+"/services", {method: "POST", json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
					log(JSON.stringify(body));
					let cli = "ziti edge create service '"+name+"' --configs '"+serverId+","+clientId+"'";
					let serviceCall = {
						url: url+"/services",
						params: params
					};
					var item = {
						id: "",
						cli: cli,
						service: serviceCall
					}
					if (body.data) item.id = body.data.id;
					resolve(item);
				});
			}
		//});
	});
}

async function GetConfigId(request, response, url, user, type) {
	return new Promise(function(resolve, reject) {
		//Authenticate(request).then((results) => {
			if (hasAccess(user)) {
				DoCall(url+"/config-types?filter=(name = \""+type+"\")&limit=1", {}, request, true).then((results) => {
					resolve(results.data[0].id);
				});
			}
		//});
	});
}

/**
 * 
 * Create a new config given a config type and variables necaassary, iterate an index and append if the name already exists
 * 
 * @param {The Server Request object} request 
 * @param {The Server Response object} response 
 * @param {The user creating the config} user 
 * @param {The url to the edge controller} url 
 * @param {The config identifier} configId 
 * @param {The name to create} name 
 * @param {The data associated with the config} data 
 * @param {The index of attempts that the call is on} index 
 * @returns The new id, cli command, and service vall info
 */
async function CreateConfig(request, response, user, url, configId, name, data, index) {
	return new Promise(function(resolve, reject) {
		if (!index) index = 0;
		//Authenticate(request).then((results) => {
			if (hasAccess(user)) {
				var params = {
					name: name+((index>0)?"-"+index:""),
					configTypeId: configId,
					data: data
				};
				log("Saving As: POST "+JSON.stringify(params));
				external(url+"/configs", {method: "POST", json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
					log(JSON.stringify(body));
					index++;
					if (body.error) resolve(CreateConfig(request, response, user, url, configId, name, data, index));
					else if (body.data) {
						let cli = "ziti edge create config '"+params.name+"' '"+configId+"' '"+JSON.stringify(data).split('"').join('\\"')+"'";
						let serviceCall = {
							url: url+"/configs",
							params: params
						};
						var item = {
							id: "",
							cli: cli,
							service: serviceCall
						}
						if (body.data) item.id = body.data.id;
						resolve(item);						
					} else resolve(CreateConfig(request, response, user, url, configId, name, data, index));
				});
			}
		//});
	});
}

/**
 * Quick create a simple identity and return the new identity
 */
app.post("/api/identity", function(request, response) {
	if (serviceUrl==null||serviceUrl.length==0) response.json({error:"loggedout"});
	else {
		log("Simple Identity Creation");
		var name = request.body.name;
		var user = request.session.user;
		var url = serviceUrl+"/identities";
		var params = {
			enrollment: {
				ott: true
			},
			isAdmin: false,
			name: name,
			type: "Device"
		}
		if (request.body.roles) params.roleAttributes = request.body.roles
		//Authenticate(request).then((results) => {
			if (hasAccess(user)) {
				log("Saving As: POST "+JSON.stringify(params));
				external(url, {method: "POST", json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
					log(JSON.stringify(body));
					if (body.error) HandleError(response, body.error);
					else if (body.data) {
						var id = body.data.id;
						DoCall(serviceUrl+"/identities/"+id, {}, request, true).then((results) => {
							if (results.error) HandleError(response, results.error);
							else {
								results.cli = [];
								results.services = [];
								
								let cli = "ziti edge create identity device \'"+name+"\'";
								if (request.body.roles) cli += " -a \'"+request.body.roles.toString()+"\'";
								results.cli.push(cli);

								let serviceCall = {
									url: url,
									params: params
								};
								results.services.push(serviceCall);

								response.json(results);
							}
						});
					} else response.json( {error: "Unable to save data"} );
				});
			}
		//});
	}
});


function RedefineObject(obj) {
	for (let prop in obj) {
		if (Array.isArray(obj[prop]) && obj[prop].length==0) {
			delete obj[prop];
		} else {
			if (typeof obj[prop] === "string" && obj[prop].trim().length==0) {
				delete obj[prop];
			} else {
				if (typeof obj[prop] === "object") {
					obj[prop] = RedefineObject(obj[prop]);
					if (Object.keys(obj[prop]).length==0) {
						delete obj[prop];
					}
				}
			}
		}
	}
	return obj;
}

/**
 * Save the object to the edge controller based on the provided type and passed in JSON 
 * parameters. If it exists, do an update, if not do a create operation.
 */
app.post("/api/dataSave", function(request, response) {
	if (serviceUrl==null||serviceUrl.length==0) response.json({error:"loggedout"});
	else {
		var saveParams = request.body.save;
		var additional = request.body.additional;
		var removal = request.body.removal;
		var type = request.body.type;
		var paging = request.body.paging;
		var method = "POST";
		var id = request.body.id;
		var url = serviceUrl+"/"+type;
		var user = request.session.user;
		var chained = false;
		if (request.body.chained) chained = request.body.chained;
		//Authenticate(request).then((results) => {
			if (hasAccess(user)) {
				if (id&&id.trim().length>0) {
					method = "PATCH";
					url += "/"+id.trim();
					if (removal) {
						var objects = Object.entries(removal);
						if (objects.length>0) {
							for (var i=0; i<objects.length; i++) {
								var params = {};
								params.ids = objects[i][1];
								log("Delete:"+serviceUrl+"/"+type+"/"+id.trim()+"/"+objects[i][0]);
								log(JSON.stringify(params));
								external.delete(serviceUrl+"/"+type+"/"+id.trim()+"/"+objects[i][0], {json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {});
							}
						}
					}
				}
				log("Calling: "+url);
				saveParams.data = RedefineObject(saveParams.data);
				log("Saving As: "+method+" "+JSON.stringify(saveParams));
				console.log("Session: "+request.session.user);
				external(url, {method: method, json: saveParams, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
					if (err) HandleError(response, err);
					else {
						log(JSON.stringify(body));
						if (body.error) HandleError(response, body.error);
						else if (body.data) {
							if (additional) {
								var objects = Object.entries(additional);
								var index = 0;
								if (objects.length>0) {
									if (method=="POST") id = body.data.id;
									for (var i=0; i<objects.length; i++) {
										log("Body: "+JSON.stringify(body.data));
										log("Url: "+serviceUrl+"/"+type+"/"+id+"/"+objects[i][0]);
										log("Objects: "+JSON.stringify({ ids: objects[i][1] }));
										external.put(serviceUrl+"/"+type+"/"+id+"/"+objects[i][0], {json: { ids: objects[i][1] }, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": user } }, function(err, res, body) {
											index++;
											if (index==objects.length) {
												if (chained) response.json(body.data);
												else GetItems(type, paging, request, response);
											}
										});
									}
								} else {
									if (chained) response.json(body.data);
									else GetItems(type, paging, request, response);
								}
							} else {
								if (chained) response.json(body.data);
								else GetItems(type, paging, request, response);
							}
						} else response.json( {error: "Unable to save data"} );
					}	
				});
			}
		//});
	}
});

/**
 * Save the data associated to one object to the parent object
 */
app.post("/api/subSave", function(request, response) {
	if (serviceUrl==null||serviceUrl.length==0) response.json({error:"loggedout"});
	else {
		var id = request.body.id;
		var type = request.body.type;
		var doing = request.body.doing;
		var parentType = request.body.parentType;
		var fullType = parentType+"/"+id+"/"+type;
		var url = serviceUrl+"/"+fullType;
		var saveParams = request.body.save;
		var user = request.session.user;
		//Authenticate(request).then((results) => {
			if (hasAccess(user)) {
				log(url);
				log("Sub Saving As: "+doing+" "+JSON.stringify(saveParams));
				external(url, {method: doing, json: saveParams, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user } }, function(err, res, body) {
					if (err) {
						log(err);
						response.json({ error: err });
					} else {
						log(JSON.stringify(body));
						GetItems(fullType, null, request, response);
					}
				});
			} else response.json({error:"loggedout"});
		//});
	}
});

app.post("/api/verify", function(request, response) {
	if (serviceUrl==null||serviceUrl.length==0) response.json({error:"loggedout"});
	else {
		var id = request.body.id;
		var cert = request.body.cert;
		var url = serviceUrl+"/cas/"+id+"/verify";
		var user = request.session.user;
		if (hasAccess(user)) {
			external(url, {method: "POST", body: cert, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user, "Content-Type": "text/plain" } }, function(err, res, body) {
				var result = JSON.parse(body);
				if (err) {
					log(err);
					response.json({ error: err });
				} else {
					if (result.error) response.json( {error: result.error.message} );
					else {
						log(JSON.stringify(body));
						response.json({ success: "Certificate Verified"});
					}
				}
			});
		} else response.json({error:"loggedout"});

	}
});

/*
 * Schema Dereference Tool
 */ 
app.post("/api/schema", function(request, response) {
	var data = request.body.schema;
	$RefParser.dereference(data, (err, schema) => {
		if (err) response.json({error:err});
		else response.json({data:schema});
	})	
});


/**------------- Data Deletion Section -------------**/




/**
 * Delete the specified list of objects from edge controller, and return the remaining 
 * list while retaining the last search filter properties.
 */
app.post("/api/delete", function(request, response) {
	var ids = request.body.ids;
	var type = request.body.type;
	var paging = request.body.paging;
	var user = request.session.user;

	log("Deleting: "+type+" "+ids.join(','));
	DoDelete(type, ids, user, request, 0).then((results) => {
		GetItems(type, paging, request, response);
	}).catch((error) => {
		log("Error: "+JSON.stringify(error));
		HandleError(response, error);
	});

	/*
	var promises = [];

	ids.forEach(function(id) {
		promises.push(ProcessDelete(type, id, user, request));
	});
	
	Promise.all(promises).catch((error) => { 
		log("Catch: "+JSON.stringify(error));
		response.json({error: error.causeMessage});
	}).then(function(e) {
		GetItems(type, paging, request, response);
	});
	*/
});

function DoDelete(type, ids, user, request, index) {
	return new Promise(function(resolve, reject) {
		if (index>=ids.length) resolve(true);
		else {
			var id = ids[index];
			index++;
			ProcessDelete(type, id, user, request, true, index).then((result) => {
				resolve(DoDelete(type, ids, user, request, index));
			}).catch((error) => {
				log("Reject: "+JSON.stringify(error));
				reject(error);
			});
		}
	});
}

/**
 * Create the promise required to delete a specific object from the edge controller
 * 
 * @param {The type of object being deleted} type 
 * @param {The id of the object to delete} id 
 * @param {The specified user token deleting the object} user 
 */
function ProcessDelete(type, id, user, request, isFirst=true) {
	return new Promise(function(resolve, reject) {
		log("Delete: "+serviceUrl+"/"+type+"/"+id)
		external.delete(serviceUrl+"/"+type+"/"+id, {json: {}, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": user } }, function(err, res, body) {
			if (err) {
				log("Err: "+err);
				reject(err);
			} else {
				if (body) {
					log(JSON.stringify(body));
					if (body.error) {
						if (isFirst) {
							log("Re-authenticate User");
							//Authenticate(request).then((results) => {
								ProcessDelete(type, id, user, request, false).then((results) => {
									resolve(results);
								}).catch((error) => {
									log("Reject After Auth: "+JSON.stringify(error));
									reject(error);
								});
							//});
						} else reject(body.error);
					} else resolve(body.data);
				} else {
					log("Reject: No Controller");
					reject({ message: "Controller Unavailable" });
				}
			}
		});
	});
}



app.post("/api/execute", function(request, response) {
	//Authenticate(request).then((results) => {
		var template = GetTemplate(request.body.id);
		if (template) {
			var name = request.body.name.trim();
			var idNames = [];
			for (var i=0; i<template.profiles.length; i++) idNames.push(name+"-"+template.profiles[i]);
			CreateProfile(template, name, 0, request).then((result) => {
				var promises = [];
				for (var i=0; i<idNames.length; i++) promises.push(GetIdentity(idNames[i], request));
				Promise.all(promises).then((identities) => {
					var promises = [];
					var ids = [];
					for (var i=0; i<identities.length; i++) ids.push(identities[i].id);

					if (template.services.length>0) {
						var param = {
							name: name+"-Policy",
							type: "Dial",
							serviceRoles: [],
							identityRoles: [],
							postureCheckRoles: [],
							semantic: "AnyOf",
							tags: {}
						};
	
						for (var i=0; i<identities.length; i++) param.identityRoles.push("@"+identities[i].id);
						for (var i=0; i<template.services.length; i++) param.serviceRoles.push(template.services[i].id);

						promises.push(DoPost(serviceUrl+"/service-policies", param, request));
					}

					if (template.policies.length>0) {
						for (var i=0; i<template.policies.length; i++) promises.push(AppendServicePolicy(template.policies[i].id, ids, request));
					}

					Promise.all(promises).then((results) => {
						response.json({data: identities});
					});
				});
			});
		} else response.json({ error: "Template Not Found" });
	//});
});

function DoPatch(url, params, request) {
	return new Promise(function(resolve, reject) {
		external.put(url, { json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user }}, (err, results, body) => {
			resolve(body);
		});
	});
}

function DoPost(url, params, request) {
	return new Promise(function(resolve, reject) {
		external.post(url, { json: params, rejectUnauthorized: rejectUnauthorized, headers: { "zt-session": request.session.user }}, (err, results, body) => {
			resolve(body);
		});
	});
}

function AppendServicePolicy(id, ids, request) {
	return new Promise(function(resolve, reject) {
		DoCall(serviceUrl+"/service-policies?filter=(id=\""+id.substr(1)+"\")&limit=1&offset=0&sort=createdAt desc", {}, request, true).then((result) => {
			if (result.data!=null&&result.data.length>0) {
				var policy = result.data[0];
				var patchPolicy = {
					name: policy.name,
					serviceRoles: policy.serviceRoles,
					identityRoles: policy.identityRoles,
					postureCheckRoles: policy.postureCheckRoles,
					semantic: policy.semantic,
					tags: policy.tags,
					type: policy.type
				};
				for (var i=0; i<ids.length; i++) patchPolicy.identityRoles.push("@"+ids[i]);
				DoPatch(serviceUrl+"/service-policies/"+id.substr(1), patchPolicy, request).then((results) => {
					resolve(true);
				});
			} else resolve(null);
		});
	});
}

function GetIdentity(name, request) {
	return new Promise(function(resolve, reject) {
		DoCall(serviceUrl+"/identities?filter=(name=\""+name+"\")&limit=1&offset=0&sort=createdAt desc", {}, request, true).then((results) => {
			if (results.data!=null&&results.data.length>0) resolve(results.data[0]);
			else resolve(null);
		});
	});
}

function CreateProfile(template, name, index, request) {
	return new Promise(function(resolve, reject) {
		if (index<template.profiles.length) {
			var profile = template.profiles[index];
			index++;
			var identity = {
				name: name+"-"+profile,
				type: "Device",
				isAdmin: false,
				enrollment: { 
					"ott": true
				}
			};
			if (template.roles != null && template.roles.length>0) identity.roleAttributes = template.roles;
			DoPost(serviceUrl+"/identities", identity, request).then((result) => {
				resolve(CreateProfile(template, name, index, request));

			});
			
		} else resolve(true);
	});
}


/**------------- Fabric Series Data Funcations -------------**/


/**
 * Get the averages from the series data in the system influx DB
 */
app.post("/api/average", function(request, response) {
	var core = request.body.core;
	var item = request.body.item;
	var readwrite = request.body.readwrite;
	var type = request.body.type;
	var id = request.body.id;
	var source = core;
	if (item.trim().length>0) source +="."+item;
	if (readwrite.trim().length>0) source +="."+readwrite;
	source +="."+type;
	var url = new URL(request.body.url);
	domain = url.hostname;
	
	const influx = new Influx.InfluxDB({
		host: domain,
		port: 8086,
		database: 'ziti'
	});

	var query = "select MEAN(mean) from \""+source+"\" WHERE source='"+id+"'";
	log(query);
	influx.query(query).then(result => {
		var avg = 0;
		if (result.length>0) avg = result[0].mean;
		response.json({ id: id, source: source+".average", data: avg });
	}).catch(error => {
		log(error);
		response.json({ error: error });
	});
});



/**
 * Get the mean value from the series data in the system influx DB
 */
app.post("/api/series", function(request, response) {
	var core = request.body.core;
	var item = request.body.item;
	var readwrite = request.body.readwrite;
	var type = request.body.type;
	var id = request.body.id;
	var source = core;
	if (item.trim().length>0) source +="."+item;
	if (readwrite.trim().length>0) source +="."+readwrite;
	source +="."+type;
	var url = new URL(request.body.url);
	domain = url.hostname;
	
	const influx = new Influx.InfluxDB({
		host: domain,
		port: 8086,
		database: 'ziti'
	});

	var query = "select MEAN(mean) from \""+source+"\" WHERE source='"+id+"' AND time > now() - 6d GROUP BY time(1d)";
	log(query);
	influx.query(query).then(result => {
		for (var i=0; i<result.length; i++) {
			log(moment(result[i].time).fromNow()+" "+result[i].mean);
		}
		response.json({ source: source, data: result });
	}).catch(error => {
		log(error);
		response.json({ error: error });
	});
});




/**------------- System Application Funcations -------------**/



/***
 * Send a message to NetFoundry to report errors or request features
 */
app.post("/api/message", function(request, response) {
	var type = request.body.type;
	var from = request.body.from;
	var message = request.body.message;
	var email = request.body.email;

	var params = {
		body: "A "+type+" message was set to you by "+from+" at "+(new Date())+" with email "+email+": "+message,
		subject: "NetFoundry Ziti - Message"
	};
	
	if (transporter) {
		var body = params.body;
		var subject = params.subject;
		var from = 'ziggy@zac.openziti.org';
		var to = 'ziggy@zac.openziti.org';
		if (settings.from && settings.from.match(emailRegEx)) from = settings.from;
		if (settings.to && settings.to.match(emailRegEx)) to = settings.to;
		var mailOptions = {
			from: 'Ziggy <'+from+'>',
			to: "jeremy.tellier@netfoundry.io",
			subject: subject,
			html: body
		};
		log(JSON.stringify(mailOptions));
		transporter.sendMail(mailOptions, function(error, info){
			if (error) {
				log("Error: "+error);
				response.json({ error: error });
			} else {
				if (info) {
					log("Info: "+JSON.stringify(info));
					response.json({ complete: info });
				}
			}
		});
	} else {
		external.post("https://sendmail.netfoundry.io/message", {json: params, rejectUnauthorized: rejectUnauthorized }, function(err, res, body) {
			if (err) response.json({ errors: err });
			else {
				if (body.error) response.json({ errors: body.error });
				else response.json({ success: "Mail Sent" });
			}
		});
	}
});


/***
 * Send a message to NetFoundry to report errors or request features
 */
app.post("/api/send", function(request, response) {
	if (transporter) {
		var codes = request.body.codes;
		var attachements = request.body.attachments;

		if (attachements.length!=codes.length) response.json({ complete: "Message Sent" });
		else {
			var html = '';
			for (var i=0; i<codes.length; i++) {
				if (codes[i].indexOf("data:image/png;base64")==0) {
					var name = attachements[i].filename.split('.jwt').join('');
					html += '<h3>'+name+'</h3>';
					html += '<img alt="QR '+name+'" src="'+codes[i]+'" style="display: block;"/>';
				}
			}
			var body = '<html><body><center><h2>The following identities have been created for you</h2><div style="position:relative; display: inline-block">'+html+'</div></center></body></html>';
			var subject = request.body.subject;
			var to = request.body.to;
			var from = 'ziggy@zac.openziti.org';
			if (settings.from && settings.from.match(emailRegEx)) from = settings.from;
			var mailOptions = {
				from: 'Ziggy <'+from+'>',
				to: [to],
				subject: subject,
				text: "OpenZiti Identities Attached",
				html: body,
				list: {
					help: from+'?subject=help',
					unsubscribe: {
						comment: 'Account'
					}
				}
			};
			if (request.body.attachments) {
				mailOptions.attachments = request.body.attachments;
			}
			log(JSON.stringify(mailOptions));
			transporter.sendMail(mailOptions, function(error, info){
				if (error) {
					log("Error: "+error);
					response.json({ error: error });
				} else {
					if (info) {
						log("Info: "+JSON.stringify(info));
						response.json({ complete: "Message Sent"  });
					}
				}
			});
		}
	} else {
		external.post("https://sendmail.netfoundry.io/send", {json: request.body, rejectUnauthorized: rejectUnauthorized }, function(err, res, body) {
			if (err) response.json({ errors: err });
			else {
				if (body.error) response.json({ errors: body.error });
				else response.json({ success: "Message Sent" });
			}
		});
	}
});

/**
 * If debugging is turned on show the log on the console.
 * @param {The text of the message} message 
 */
function log(message) {
	if (isDebugging) console.log(message);
}


/**------------- Serve the Express Application -------------**/



/**
 * Serve the current app on the defined port
 * 
 * NOTE: if running Zitified, the 'port' is ignored. Instead, we
 * 		 we will be listening on the Ziti service name specified 
 * 		 by the ZITI_SERVICE_NAME env var.
 */
StartServer(port);
let maxAttempts = 100;
var server;
app.use((err, request, response, next) => {
	if (err) {
		if (err.toString().indexOf("Error: EPERM: operation not permitted, rename")==0) {
			// Ignoring chatty session-file warnings
		} else console.log(err);
		next();
	} else {  
		next();
	} 
});

function StartServer(startupPort) {
	if (bindIP=="" || bindIP==null) {
		if (zitified) {
			server = app.listen(undefined, function() {
				console.log("Ziti Admin Console is now listening for incoming Ziti Connections");
			});
		} else {
			server = app.listen(startupPort, function() {
				console.log("Ziti Admin Console is now listening on port "+startupPort);
			}).on('error', function(err) {
				if (err.code=="EADDRINUSE") {
					maxAttempts--;
					console.log("Port "+startupPort+" In Use, Attempting new port "+(startupPort+1));
					startupPort++;
					if (maxAttempts>0) StartServer(startupPort);
				} else {
					console.log("All Ports in use "+port+" to "+startupPort);
				}
			});
		}
	} else {
		if (zitified) {
			server = app.listen(undefined, bindIP, function() {
				console.log("Ziti Admin Console is now listening for incoming Ziti Connections");
			});
		} else {
			server = app.listen(startupPort, bindIP, function() {
				console.log("Ziti Admin Console is now listening on port "+startupPort);
			}).on('error', function(err) {
				if (err.code=="EADDRINUSE") {
					maxAttempts--;
					console.log("Port "+startupPort+" In Use, Attempting new port "+(startupPort+1));
					startupPort++;
					if (maxAttempts>0) StartServer(startupPort);
				} else {
					console.log("All Ports in use "+port+" to "+startupPort);
				}
			});
		}
	}

	/**
	 * If certificates are defined, setup an https redirection service
	 */
	if (fs.existsSync("./server.key")&&fs.existsSync("./server.chain.pem")) {
		log("Initializing TLS");
		try {
			const options = {
				key: fs.readFileSync("./server.key"),
				cert: fs.readFileSync("./server.chain.pem")
			};
			console.log("TLS initialized on port: " + portTLS);
			if (bindIP=="" || bindIP==null) {
				tlsServer = https.createServer(options, app);
				tlsServer.listen(portTLS);
			} else {
				tlsServer = https.createServer(options, app);
				tlsServer.listen(portTLS, bindIP);
			}
		} catch(err) {
			log("ERROR: Could not initialize TLS!");
			throw err;
		}
	}

	var signals = {
		'SIGHUP': 1,
		'SIGINT': 2,
		'SIGTERM': 15
	};
	
	const shutdown = (signal, value) => {
		console.log("shutdown!");
		server.close(() => {
			console.log(`server stopped by ${signal} with value ${value}`);
			if (tlsServer) {
				tlsServer.close(() => {
					process.exit(128 + value);
				});
			} else {
				process.exit(128 + value);
			}
		});
	};
	
	Object.keys(signals).forEach((signal) => {
		process.on(signal, () => {
			console.log(`process received a ${signal} signal`);
			shutdown(signal, signals[signal]);
		});
	});
}

process.on('SIGINT', () => {
	console.log(`process received a SIGINT signal`);
	process.exit();
});