import odoo
from odoo import http
from odoo.http import request
from odoo import tools
from odoo.addons.web.controllers.main import ensure_db
from odoo.http import request, db_filter

class WebController(http.Controller):
    @http.route('/web/session/authenticate', type='json', auth="none")
    def authenticate(self, login, password, base_location=None, db=None):
        if db:
            if db not in http.db_filter([db]):
                return {"error": "Database not allowed", "status": 403}
            if request.session.db and request.session.db != db:
                request.session.logout()
            request.session.db = db
        else:
            db = tools.config.get('db_name')

        if not db:
            return {"error": "Database name should be specified in Conf File or passed in request", "status": 400}

        ensure_db()
        request.session.authenticate(db, login, password)
        return request.env['ir.http'].session_info()