login and authentication

login via totp
authentication via access and refresh tokens

src/helpers/jwtHelper.ts

@@ -0,0 +1,40 @@
+import jwt from "jsonwebtoken";
+import { JWTData } from "../type/jwtTypes";
+
+export abstract class JWTHelper {
+  static validate(token: string): Promise<string | jwt.JwtPayload> {
+    return new Promise<string | jwt.JwtPayload>((resolve, reject) => {
+      jwt.verify(token, process.env.JWT_SECRET, (err, decoded) => {
+        if (err) reject(err.message);
+        else resolve(decoded);
+      });
+    });
+  }
+
+  static create(data: JWTData): Promise<string> {
+    return new Promise<string>((resolve, reject) => {
+      jwt.sign(
+        data,
+        process.env.JWT_SECRET,
+        {
+          expiresIn: process.env.JWT_EXPIRATION,
+        },
+        (err, token) => {
+          if (err) reject(err.message);
+          else resolve(token);
+        }
+      );
+    });
+  }
+
+  static decode(token: string): Promise<string | jwt.JwtPayload> {
+    return new Promise<string | jwt.JwtPayload>((resolve, reject) => {
+      try {
+        let decoded = jwt.decode(token);
+        resolve(decoded);
+      } catch (err) {
+        reject(err.message);
+      }
+    });
+  }
+}

src/helpers/stringHelper.ts

@@ -0,0 +1,11 @@
+export abstract class StringHelper {
+  static random(len: number, charSet?: string): string {
+    charSet = charSet || "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+    var randomString = "";
+    for (var i = 0; i < len; i++) {
+      var randomPoz = Math.floor(Math.random() * charSet.length);
+      randomString += charSet.substring(randomPoz, randomPoz + 1);
+    }
+    return randomString;
+  }
+}