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// Load environment
require("./config/environment.js");
// Shared
const ConfirmedError = require("shared/error");
const Logger = require("shared/logger");
// Constants
const DOMAIN = process.env.DOMAIN;
const NODE_ENV = process.env.NODE_ENV;
const ipRangeCheck = require("ip-range-check");
// Express and body parsers
const express = require("express");
const app = express();
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
// Email for /signin alerts
const { Email } = require("shared/utilities");
// Admin logs everything including successful requests
const expressWinston = require("express-winston");
expressWinston.requestWhitelist = ["url", "session", "ip", "method", "httpVersion", "originalUrl", "query"];
app.use(expressWinston.logger({
winstonInstance: Logger,
ignoreRoute: function (request, response) {
const reqUrl = request.url;
if (reqUrl.startsWith("/css/")
|| reqUrl.startsWith("/images/")
|| reqUrl.startsWith("/js/")
|| reqUrl.startsWith("/favicon.ico")
|| reqUrl.startsWith("/health")) {
return true;
}
return false;
}
}));
// Log unhandled rejections
process.on("unhandledRejection", error => {
Logger.error(`unhandledRejection:
${error.stack}`);
});
// Basic Security
app.use(require("helmet")());
// View Engine & HTML/JS/CSS
app.engine(".hbs", require("express-handlebars")({
defaultLayout: "main",
extname: ".hbs",
partialsDir: __dirname + "/views/partials/"
}));
app.set("view engine", ".hbs");
app.use(express.static("public"));
app.locals.DOMAIN = DOMAIN;
// Sessions/Flash
app.use(require("./config/session.js"));
if (NODE_ENV === "production") {
app.set("trust proxy", 1);
}
// Private network can only access /get-server-certificate
app.use((request, response, next) => {
if (ipRangeCheck(request.ip, "172.16.0.0/12") === true) {
if (request.path.toLowerCase() !== "/get-server-certificate") {
next(new ConfirmedError(400, 99, "Internal IPs only allowed to access /get-server-certificate. Incident reported."));
}
}
next();
});
// Initialize Database
app.use(require("./middleware/initialize-database.js"));
// Controllers
app.use("/", require("./controllers/admin-controller.js"));
app.use("/", require("./controllers/database-controller.js"));
app.use("/", require("./controllers/notification-controller.js"));
app.use("/", require("./controllers/partners-controller.js"));
app.use("/", require("./controllers/signin-controller.js"));
app.use("/", require("./controllers/signup-controller.js"));
app.use("/", require("./controllers/source-controller.js"));
app.use("/", require("./controllers/secret-controller.js"));
app.use("/", require("./controllers/rule-controller.js"));
app.get("/error-test", (request, response, next) => {
next(new ConfirmedError(500, 999, "Test alerts", "Details here"));
});
app.get("/health", function(request, response, next) {
return response.status(200).json({
message: "OK from Admin"
});
});
app.get("/", (request, response, next) => {
if (request.session && request.session.userEmail) {
response.redirect("/admin");
}
else {
response.redirect("/signin");
}
});
// Log Errors
app.use(expressWinston.errorLogger({
winstonInstance: Logger
}));
// Handle Errors
app.use((error, request, response, next) => {
// Email Alert on /signin requests
// This is here instead of the controller route so we can also catch validation errors from middleware
if (request.path.toLowerCase().startsWith("/signin")) {
Email.sendAdminAlert("Sign In Error",
`Path: ${request.path}
IP: ${request.ip}
Time: ${new Date()}
Error: ${error}
Email: ${request.body ? request.body.email : "none"}`);
}
if (response.headersSent) {
Logger.error("RESPONSE ALREADY SENT");
return;
}
return response.format({
json: () => {
if (!error.statusCode) {
response.status(500).json({
code: error.confirmedCode,
message: error.message
});
}
else {
response.status(error.statusCode).json({
code: error.confirmedCode,
message: error.message
});
}
},
html: () => {
if (error.statusCode == 401) {
request.flashRedirect("error", error.message, "/signin");
}
else if (error.statusCode >= 200 && error.statusCode < 500) {
if (error.confirmedCode == 1) {
response.redirect("/resend-confirm-code");
}
request.flashRedirect("error", error.message, request.headers.referrer || request.headers.referer);
}
else {
request.flashRender("error", error.message, "notification");
}
}
});
});
// Handle 404 Not Found
app.use((request, response, next) => {
return response.format({
json: () => {
response.status(404).json({
code: 404,
message: "Not Found"
});
},
html: () => {
request.flashRender("error", "The page you are looking for does not exist.", "notification", 404);
}
});
});
module.exports = app;