Added pw reset jwt generation

ref #40

src/jwtcreator.ts

@@ -33,6 +33,20 @@ export class JwtCreator {
             exp: expiry_timestamp
         }, config.jwt_secret)
     }
+
+    /**
+     * Creates a new password reset token for a given user.
+     * The token is valid for 15 minutes or 1 use - whatever comes first.
+     * @param user User entity that the password reset token shall be created for
+     */
+    public static createReset(user: User) {
+        let expiry_timestamp = Math.floor(Date.now() / 1000) + 10 * 36000;
+        return jsonwebtoken.sign({
+            id: user.id,
+            refreshTokenCount: user.refreshTokenCount,
+            exp: expiry_timestamp
+        }, config.jwt_secret)
+    }
 }
 
 /**