By what methods and mechanisms is user rights confirmation for access to different sections of the site carried out?

User rights confirmation for accessing different sections of a website is usually implemented through authentication and authorization mechanisms.

1. Authentication — verifying the user's identity (e.g., login and password input, OAuth, JWT).

2. Authorization — determining which actions and sections are accessible to the user after authentication.

Methods and mechanisms:

• Role-Based Access Control (RBAC): each user is assigned a role (admin, user, guest), and access to sections is determined by roles.

• Policy-Based Access Control: a more flexible approach where rights are defined based on rules and conditions.

• Access tokens: after successful authentication, a token (e.g., JWT) is issued to the user, containing information about rights and used for verification with each request.

• Sessions: the server stores information about the user and their rights in a session, which is identified and passed to the client.

Example in Python using Flask and Flask-Login:

from flask import Flask, redirect, url_for
from flask_login import LoginManager, login_required, current_user

app = Flask(__name__)
login_manager = LoginManager(app)

@app.route('/admin')
@login_required
def admin_panel():
    if current_user.role != 'admin':
        return "Access Denied", 403
    return "Welcome to the admin panel"

Thus, rights confirmation is a check that the authenticated user has the necessary permissions to access specific sections of the site.