我已经查看了所有与此相关的StackOverflow问题,但似乎无法解决。当我对密码进行哈希处理并检查其是否与自身匹配时,使用当前代码会返回TypeError“Unicode-objects must be encoded before hashing”。
from scripts import tabledef
from flask import session
from sqlalchemy.orm import sessionmaker
from contextlib import contextmanager
import bcrypt
(Unrelated Python code...)
def hash_password(password):
return bcrypt.hashpw(password.encode('utf8'), bcrypt.gensalt())
def credentials_valid(username, password):
with session_scope() as s:
user = s.query(tabledef.User).filter(
tabledef.User.username.in_([username])).first()
if user:
return bcrypt.checkpw(password.encode('utf8'), user.password)
else:
return False
尝试通过设置user.password= user.password.encode('utf8')
来解决此错误时,我收到了“无效的Salt”。
这段代码有什么问题?
更新: 我通过Flask从用户输入中存储密码:
import json
import sys
import os
import plotly
import pandas as pd
import numpy as np
import plotly.graph_objs as go
from scripts import tabledef
from scripts import forms
from scripts import helpers
from flask import Flask, redirect, url_for, render_template, request, session, flash, Markup
from flask_socketio import SocketIO, emit
@app.route('/', methods=['GET', 'POST'])
def login():
if not session.get('logged_in'):
form = forms.LoginForm(request.form)
if request.method == 'POST':
username = request.form['username'].lower()
password = request.form['password']
if form.validate():
if helpers.credentials_valid(username, password):
session['logged_in'] = True
session['username'] = username
session['email'] = request.form['email']
session['password'] = request.form['password']
return json.dumps({'status': 'Login successful'})
return json.dumps({'status': 'Invalid user/pass'})
return json.dumps({'status': 'Both fields required'})
return render_template('login.html', form=form)
user = helpers.get_user()
return render_template('home.html', user=user)
@app.route('/signup', methods=['GET', 'POST'])
def signup():
if not session.get('logged_in'):
form = forms.LoginForm(request.form)
if request.method == 'POST':
username = request.form['username'].lower()
password = helpers.hash_password(request.form['password'])
email = request.form['email']
if form.validate():
if not helpers.username_taken(username):
helpers.add_user(username, password, email)
session['logged_in'] = True
session['username'] = username
session['email'] = request.form['email']
session['password'] = request.form['password']
return json.dumps({'status': 'Signup successful'})
return json.dumps({'status': 'Username taken'})
return json.dumps({'status': 'User/Pass required'})
return render_template('login.html', form=form)
return redirect(url_for('login'))
这是我遇到的错误信息:
/lib/python3.5/site-packages/flask/app.py", line 1718, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/home/suraj/Documents/Programming/current-projects/GW_Dining_Tracker/env/lib/python3.5/site-packages/flask/_compat.py", line 35, in reraise
raise value
File "/home/suraj/Documents/Programming/current-projects/GW_Dining_Tracker/env/lib/python3.5/site-packages/flask/app.py", line 1813, in full_dispatch_request
rv = self.dispatch_request()
File "/home/suraj/Documents/Programming/current-projects/GW_Dining_Tracker/env/lib/python3.5/site-packages/flask/app.py", line 1799, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/home/suraj/Documents/Programming/current-projects/GW_Dining_Tracker/Flaskex-master/app.py", line 34, in login
if helpers.credentials_valid(username, password):
File "/home/suraj/Documents/Programming/current-projects/GW_Dining_Tracker/Flaskex-master/scripts/helpers.py", line 64, in credentials_valid
return bcrypt.checkpw(password.encode('utf8'), user.password)
File "/home/suraj/Documents/Programming/current-projects/GW_Dining_Tracker/env/lib/python3.5/site-packages/bcrypt/__init__.py", line 101, in checkpw
raise TypeError("Unicode-objects must be encoded before checking")
TypeError: Unicode-objects must be encoded before checking
user.password
。但是,它不是bytes
的事实(否则您尝试的encode
将引发AttributeError
)意味着它显然不是从hash_password
返回的结果,那么它是什么? - abarnertuser.password
,而不是其 bcrypt 值?如果是这样的话:你绝不想这样做;使用 bcrypt(或任何密码哈希器)的整个目的是您无需在某个地方保留实际用户密码,以防泄漏。 - abarnert