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

class User(db.Model):
    __tablename__ = 'user'
    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)
    image = db.Column(db.String(100))
    say = db.Column(db.String(50))

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)

@property
    def password(self):
        return self._password

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

3.密碼驗證方法：

 

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

 

        result = check_password_hash(self._password,row_password)

 

        return result

def check_password(self,row_password):
        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):

@app.route('/login/',methods=['GET','POST'])
def login():
    if request.method=='GET':
        return render_template('login.html')
    else:
        usern=request.form.get('username')
        passw=request.form.get('password')
        user=User.query.filter(User.username==usern).first()
        #判斷用戶名是否存在
        if user:

            # if user.password==passw:
            if user.check_password(passw):
                session['user'] = usern#字典鍵值
                session['userid'] = user.id
                session.permanent = True
                return redirect(url_for('index'))
            else:
                return u' password error'
        else:
            return u' username  not existed'