密碼保護

1.更新User對象，設置對內的_password

class User(db.Model):

    __tablename__ = 'user' 

    _password = db.Column(db.String(200), nullable=False) #內部使用

 

2.編寫對外的password

from werkzeug.security import generate_password_hash, check_password_hash

    @property

    def password(self):  #外部使用，取值

        return self._password

    @password.setter

    def password(self, row_password):#外部使用，賦值

        self._password = generate_password_hash(row_password)

 

3.密碼驗證的方法：

    def check_password(self, row_password): #密碼驗證

        result = check_password_hash(self._password,row_password)

        return result

 

4.登陸驗證：

        password1 = request.form.get('password')

        user = User.query.filter(User.username == username).first()

        if user:

            if user.check_password(password1):

class User(db.Model):
    __tablename__ ='user1'
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    username = db.Column(db.String(20),nullable=False)
    _password = db.Column(db.String(200), nullable=False)
    # picture = db.Column(db.LargeBinary(length=2048))
    @property  # 裝飾器
    def password(self):  # 外部使用
        return self._password

    @password.setter
    def password(self, row_password):
        self._password = generate_password_hash(row_password)

    def check_password(self, row_password):#登陸驗證
        result = check_password_hash(self._password, row_password)
        return result

@app.route("/login/",methods=['GET','POST'])
def sign_in():
    if request.method =='GET':
        return render_template("sign_in.html")
    else:
        name = request.form.get('name')
        passw = request.form.get('password')
        user = User.query.filter(User.username == name).first()
        #判斷用戶名是否存在
        if user:
            #判斷密碼是否正確
            if user.check_password(passw):
                session['user']=name#記住用戶名
                session['userid'] = user.id
                session.permanent = True
                return redirect(url_for('first'))
            else:
                return u'密碼錯誤！'
        else:
            return u'不存在該用戶名！'