odoo12之应用:一、双因子验证(Two-factor authentication, 2FA)(HOTP,TOTP)附源码

前言

      双因子认证:双因子认证(2FA)是指结合密码以及实物(信用卡、SMS手机、令牌或指纹等生物标志)两种条件对用户进行认证的方法。--百度百科

      跟我一样"老"的网瘾少年想必一定见过买点卡后上面送的密保(类似但不完全一样),还有"将军令",以及网银的网盾,是一种二次验证的机制;它通常是6位的数字,每次使用后(HOTP)或者一定时间后(TOTP)都将会刷新,大大加大了用户的安全性,OTP(One-Time Password)分为HOTP(HMAC-based One-Time Password)和TOTP(Time-based One-Time Password)。

      HOTP是基于 HMAC 算法加密的一次性密码,以事件同步机制,把事件次序(counter)及相同的密钥(secret)作为输入,通过 HASH 算法运算出一致的密码。

      TOTP是基于时间戳算法的一次性密码,基于客户端的时间和服务器的时间及相同的密钥(secret)作为输入,产生数字进行对比,这就需要客户端的时间和服务器的时间保持相对的一致性。

Odoo12集成双因子认证

为了让odoo12的登录也可以使用双因子认证以提高安全性,我们需要:

1、实现OTP验证逻辑
2、为ODOO用户界面展示二维码
3、为管理员用户提供OTP开关
4、在登录界面增加对OTP的验证

我们需要依赖的包:

pip install pyotp
pip install pyqrcode
pip install pypng

实现OTP验证逻辑

首先,我们需要对res.users用户进行重写,添加OTP验证逻辑

# -*- coding: utf-8 -*-
import base64
import pyotp
import pyqrcode
import io

from odoo import models, fields, api, _, tools
from odoo.http import request
from odoo.exceptions import AccessDenied

import logging

_logger = logging.getLogger(__name__)


class ResUsers(models.Model):
    _inherit = 'res.users'

    otp_type = fields.Selection(selection=[('time', _('Time based')), ('count', _('Counter based'))], default='time',
                                string="Type",
                                help="Type of 2FA, time = new code for each period, counter = new code for each login")
    otp_secret = fields.Char(string="Secret", size=16, help='16 character base32 secret',
                             default=lambda self: pyotp.random_base32())
    otp_counter = fields.Integer(string="Counter", default=0)
    otp_digits = fields.Integer(string="Digits", default=6, help="Length of the code")
    otp_period = fields.Integer(string="Period", default=30, help="Seconds to update code")
    otp_qrcode = fields.Binary(compute="_compute_otp_qrcode")

    otp_uri = fields.Char(compute='_compute_otp_uri', string="URI")

    # 生成二维码
    @api.model
    def create_qr_code(self, uri):
        buffer = io.BytesIO()
        qr = pyqrcode.create(uri)
        qr.png(buffer, scale=3)
        return base64.b64encode(buffer.getvalue()).decode()

    # 将二维码的值赋给otp_qrcode变量
    @api.depends('otp_uri')
    def _compute_otp_qrcode(self):
        self.ensure_one()
        self.otp_qrcode = self.create_qr_code(self.otp_uri)

    # 计算otp_uri
    @api.depends('otp_type', 'otp_period', 'otp_digits', 'otp_secret', 'company_id', 'otp_counter')
    def _compute_otp_uri(self):
        self.ensure_one()
        if self.otp_type == 'time':
            self.otp_uri = pyotp.utils.build_uri(secret=self.otp_secret, name=self.login,
                                                 issuer_name=self.company_id.name, period=self.otp_period)
        else:
            self.otp_uri = pyotp.utils.build_uri(secret=self.otp_secret, name=self.login,
                                                 initial_count=self.otp_counter, issuer_name=self.company_id.name,
                                                 digits=self.otp_digits)

    # 验证otp验证码是否正确
    @api.model
    def check_otp(self, otp_code):
        res_user = self.env['res.users'].browse(self.env.uid)
        if res_user.otp_type == 'time':
            totp = pyotp.TOTP(res_user.otp_secret)
            return totp.verify(otp_code)
        elif res_user.otp_type == 'count':
            hotp = pyotp.HOTP(res_user.otp_secret)
            # 允许用户不小心多点20次,但是已经用过的码则无法再次使用
            for count in range(res_user.otp_counter, res_user.otp_counter + 20):
                if count > 0 and hotp.verify(otp_code, count):
                    res_user.otp_counter = count + 1
                    return True
        return False

    # 覆盖原生_check_credentials,增加双因子验证
    def _check_credentials(self, password):
        super(ResUsers, self)._check_credentials(password)
        # 判断是否打开双因子验证并校验验证码
        if self.company_id.is_open_2fa and not self.check_otp(request.params.get('tfa_code')):
            # pass
            raise AccessDenied(_('Validation Code Error!'))

在这里,我们继承了res.users,添加了如下方法:

   _compute_otp_uri: 计算otp_uri
     create_qr_code: 通过计算的otp_uri生成二维码
_compute_otp_qrcode: 调用create_qr_code生成二维码,赋值给otp_qrcode变量
          check_otp: 用于验证otp验证码是否正确
 _check_credentials: 覆盖原生_check_credentials,判断双因子的开关,调用check_otp进行双因子验证

_check_credentials方法中,我们判断了双因子的开关,而双因子开关是以公司为单位的,因此我们还需要对res.company进行继承添加字段:

# -*- coding: utf-8 -*-

from odoo import models, api, fields


class ResCompany(models.Model):
    _inherit = "res.company"

    is_open_2fa = fields.Boolean(string="Open 2FA", default=False)

为ODOO用户界面展示二维码

我们写好逻辑后,需要在用户界面中将二维码以及配置展示出来:

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <!-- 设置->用户&公司->用户界面-->
        <record id="view_users_form" model="ir.ui.view">
            <field name="name">res.users.form</field>
            <field name="model">res.users</field>
            <field name="inherit_id" ref="base.view_users_form"/>
            <field name="arch" type="xml">
                <notebook colspan="4" position="inside">
                    <page string="2FA">
                        <group col="4" colspan="4">
                            <field name="otp_secret"/>
                            <field name="otp_type"/>
                            <field name="otp_counter"
                                   attrs="{'invisible':[('otp_type', '==', 'time')], 'readonly': True}"/>
                            <field name="otp_digits" attrs="{'invisible':[('otp_type', '==', 'time')]}"/>
                            <field name="otp_period" attrs="{'invisible':[('otp_type', '==', 'count')]}"/>
                        </group>
                        <div class="row" style="display: block;text-align: center;">
                            <field name="otp_qrcode" widget="image" nolabel="1"/>
                        </div>
                        <div class="row" style="display: block;text-align: center;">
                            <label for="otp_uri"/>:
                            <field name="otp_uri"/>
                        </div>
                    </page>
                </notebook>
            </field>
        </record>
        <!-- 右上角首选项界面-->
        <record id="view_users_form_simple_modif" model="ir.ui.view">
            <field name="name">res.users.preferences.form.otp</field>
            <field name="model">res.users</field>
            <field name="inherit_id" ref="base.view_users_form_simple_modif"/>
            <field name="arch" type="xml">
                <footer position="before">
                    <div class="o_horizontal_separator">OTP</div>
                    <div class="row" style="display:block;text-align:center">
                        <field name="otp_qrcode" widget="image" nolabel="1"/>
                    </div>
                    <div class="row" style="display:block;text-align:center">
                        <field name="otp_uri" nolabel="1"/>
                    </div>
                </footer>
            </field>
        </record>
    </data>
</odoo>

效果如下:

 

 

为管理员用户提供OTP开关

我们需要让OTP可以为管理员配置,我们将它加入到res.config.settings的常规设置中:

首先,继承模型添加关联字段,is_open_2fa与company_id里的is_open_2fa关联:

# -*- coding: utf-8 -*-

from odoo import fields, models


class ResConfigSettings(models.TransientModel):
    _inherit = 'res.config.settings'

    is_open_2fa = fields.Boolean(related='company_id.is_open_2fa', string="Open 2FA", readonly=False)

然后,我们将它展示到常规设置->用户当中

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <record id="res_config_settings_view_form" model="ir.ui.view">
        <field name="name">res.config.settings.view.form.inherit.base.setup</field>
        <field name="model">res.config.settings</field>
        <field name="priority" eval="100"/>
        <field name="inherit_id" ref="base.res_config_settings_view_form"/>
        <field name="arch" type="xml">
            <xpath expr="//div[@id='user_default_rights']" position="inside">
                <div class="col-12 col-lg-6 o_setting_box">
                    <div class="o_setting_left_pane">
                        <field name="is_open_2fa"/>
                    </div>
                    <div class="o_setting_right_pane">
                        <label for="is_open_2fa"/>
                        <div class="text-muted">
                            The Switch to open 2FA
                        </div>
                    </div>
                </div>
            </xpath>
        </field>
    </record>
</odoo>

效果如下:

在登录界面增加对OTP的验证

最后,我们修改登录界面,在页面中增加对otp的验证。

首先,我们需要新增输入页面:

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <template id="auth_2FA.2fa_auth" name="TFA_auth">
        <t t-call="web.login_layout">
            <form class="oe_login_form" role="form" t-attf-action="/web/login/2fa_auth{{ '?debug' if debug else '' }}"
                  method="post" onsubmit="this.action = this.action + location.hash">
                <input type="hidden" name="csrf_token" t-att-value="request.csrf_token()"/>

                <div class="form-group field-login">
                    <label for="tfa_code">Validation Code</label>
                    <input type="text" placeholder="Please input 2FA digits number" name="tfa_code" t-att-value="tfa_code" id="tfa_code"
                           t-attf-class="form-control #{'form-control-sm' if form_small else ''}" required="required"
                           autofocus="autofocus" autocapitalize="off"/>
                </div>

                <p class="alert alert-danger" t-if="error" role="alert">
                    <t t-esc="error"/>
                </p>
                <p class="alert alert-success" t-if="message" role="status">
                    <t t-esc="message"/>
                </p>

                <div t-attf-class="clearfix oe_login_buttons text-center mb-1 {{'pt-2' if form_small else 'pt-3'}}">
                    <button type="submit" class="btn btn-primary btn-block">Log in</button>
                    <button type="button" class="btn btn-primary btn-block" onclick="window.location.href='/web/login'">Return</button>
                    <div class="o_login_auth"/>
                </div>

                <input type="hidden" name="login" t-att-value="login"/>
                <input type="hidden" name="password" t-att-value="password"/>
                <input type="hidden" name="redirect" t-att-value="redirect"/>
            </form>
        </t>
    </template>
</odoo>

然后,我们需要对/web/login路由进行修改,更改它的跳转逻辑和验证逻辑,在controller中添加main.py:

# -*- coding: utf-8 -*-
import odoo
import logging
from odoo import http, _
from odoo.addons.web.controllers.main import ensure_db, Home
from passlib.context import CryptContext
from odoo.http import request

default_crypt_context = CryptContext(
    ['pbkdf2_sha512', 'md5_crypt'],
    deprecated=['md5_crypt'],
)

_logger = logging.getLogger(__name__)


class WebHome(odoo.addons.web.controllers.main.Home):
    # Override by misterling
    @http.route('/web/login', type='http', auth="none", sitemap=False)
    def web_login(self, redirect=None, **kw):
        ensure_db()
        request.params['login_success'] = False
        if request.httprequest.method == 'GET' and redirect and request.session.uid:
            return http.redirect_with_hash(redirect)

        if not request.uid:
            request.uid = odoo.SUPERUSER_ID

        values = request.params.copy()
        try:
            values['databases'] = http.db_list()
        except odoo.exceptions.AccessDenied:
            values['databases'] = None

        if request.httprequest.method == 'POST':
            old_uid = request.uid
            try:
                request.env.cr.execute(
                    "SELECT COALESCE(company_id, NULL), COALESCE(password, '') FROM res_users WHERE login=%s",
                    [request.params['login']]
                )
                res = request.env.cr.fetchone()
                if not res:
                    raise odoo.exceptions.AccessDenied(_('Wrong login account'))
                [company_id, hashed] = res
                if company_id and request.env['res.company'].browse(company_id).is_open_2fa:
                    # 验证密码正确性
                    valid, replacement = default_crypt_context.verify_and_update(request.params['password'], hashed)
                    if replacement is not None:
                        self._set_encrypted_password(self.env.user.id, replacement)
                    if valid:
                        response = request.render('auth_2FA.2fa_auth', values)
                        response.headers['X-Frame-Options'] = 'DENY'
                        return response
                    else:
                        raise odoo.exceptions.AccessDenied()
                # 没有打开双因子验证
                uid = request.session.authenticate(request.session.db, request.params['login'],
                                                   request.params['password'])
                request.params['login_success'] = True
                return http.redirect_with_hash(self._login_redirect(uid, redirect=redirect))
            except odoo.exceptions.AccessDenied as e:
                request.uid = old_uid
                if e.args == odoo.exceptions.AccessDenied().args:
                    values['error'] = _("Wrong login/password")
                else:
                    values['error'] = e.args[0]
        else:
            if 'error' in request.params and request.params.get('error') == 'access':
                values['error'] = _('Only employee can access this database. Please contact the administrator.')

        if 'login' not in values and request.session.get('auth_login'):
            values['login'] = request.session.get('auth_login')

        if not odoo.tools.config['list_db']:
            values['disable_database_manager'] = True

        # otherwise no real way to test debug mode in template as ?debug =>
        # values['debug'] = '' but that's also the fallback value when
        # missing variables in qweb
        if 'debug' in values:
            values['debug'] = True

        response = request.render('web.login', values)
        response.headers['X-Frame-Options'] = 'DENY'
        return response

    @http.route('/web/login/2fa_auth', type='http', auth="none")
    def web_login_2fa_auth(self, redirect=None, **kw):
        ensure_db()
        request.params['login_success'] = False
        if not request.uid:
            request.uid = odoo.SUPERUSER_ID

        values = request.params.copy()
        try:
            values['databases'] = http.db_list()
        except odoo.exceptions.AccessDenied:
            values['databases'] = None
        old_uid = request.uid
        try:
            uid = request.session.authenticate(request.session.db, request.params['login'],
                                               request.params['password'])
            request.params['login_success'] = True
            return http.redirect_with_hash(self._login_redirect(uid, redirect=redirect))
        except odoo.exceptions.AccessDenied as e:
            request.uid = old_uid
            if e.args == odoo.exceptions.AccessDenied().args:
                values['error'] = _("Wrong login/password")
            else:
                values['error'] = e.args[0]
        if not odoo.tools.config['list_db']:
            values['disable_database_manager'] = True

        if 'login' not in values and request.session.get('auth_login'):
            values['login'] = request.session.get('auth_login')

        if 'debug' in values:
            values['debug'] = True

        response = request.render('auth_2FA.2fa_auth', values)
        response.headers['X-Frame-Options'] = 'DENY'
        return response

我们新增了otp验证路由,将登录逻辑增加到otp验证路由中,然后更改login路由,增加以下逻辑:

request.env.cr.execute(
    "SELECT COALESCE(company_id, NULL), COALESCE(password, '') FROM res_users WHERE login=%s",
    [request.params['login']]
)
res = request.env.cr.fetchone()
if not res:
    raise odoo.exceptions.AccessDenied(_('Wrong login account'))
[company_id, hashed] = res
if company_id and request.env['res.company'].browse(company_id).is_open_2fa:
    # 验证密码正确性
    valid, replacement = default_crypt_context.verify_and_update(request.params['password'], hashed)
    if replacement is not None:
        self._set_encrypted_password(self.env.user.id, replacement)
    if valid:
        response = request.render('auth_2FA.2fa_auth', values)
        response.headers['X-Frame-Options'] = 'DENY'
        return response
    else:
        raise odoo.exceptions.AccessDenied()

这段代码的作用是判断otp是否开启并进行密码验证(不登录,不生成session),通过密码验证跳转到otp验证页面。效果如下:

 增加语言支持

由于使用的是英文,我们需要增加中文翻译支持。

Tip:需要中文翻译的语句在非字段描述中需要使用_进行包裹,如:
_("Wrong login/password")

      打开开发者模式,设置->翻译->导出翻译->选择简体中文,PO文件,要导出的应用为two factor authentication。新建auth_2FA/i18n目录,将导出的文件复制到i18n目录下,修改里面英文内容对应的中文内容后,重启服务器即可生效。

      如果没有生效,请在设置->翻译->加载翻译中重新加载。

TODO

      对于第一次使用的用户,在用户登录时,在登录界面中展示二维码。实现方案:为res.users增加"是否第一次使用"字段,在第一次登录后展示二维码,并为其赋值为True。具体的逻辑有兴趣的朋友可以先行尝试实现。

APP下载

功能需要配套app使用,请自己手机搜索"谷歌验证器"下载使用,或使用其他可用otp软件替代。

代码地址

从github中下载:

git clone https://github.com/lingjiawen/auth_2FA.git

从odoo官方app中下载:https://apps.odoo.com/apps/modules/12.0/auth_2FA/

声明

原文来自于博客园(https://www.cnblogs.com/ljwTiey/p/11505473.html)

转载请注明文章出处,文章如有任何版权问题,请联系作者删除。

代码仅供学习使用,未经作者允许,禁止使用于商业用途。

合作或问题反馈,联系邮箱:26476395@qq.com

---------------------------------以下为9月12号更新----------------------------------

新增对于第一次使用的用户,在用户登录时,在登录界面中展示二维码。实现方案:为res.users增加"是否第一次使用"字段,在第一次登录后展示二维码,并为其赋值为True,已更新至github和app store,效果如下:

 

 

posted @ 2019-09-11 12:51 Tiey 阅读(...) 评论(...) 编辑 收藏