def login():
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
#below lines accesses query param and allows a redirect to the page a user was previously trying to access.
next_page = request.args.get('next')
#ternery conditional
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash('Login Unsucessful. Please check email and password.',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash('Login unsuccessfull!Please check Username and Password',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for("main.home"))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get("next")
return redirect(next_page) if next_page else redirect(
url_for("main.home"))
else:
flash("Login Unsuccessful. Please check email and password",
"danger")
return render_template("login.html", title="Login", form=form)
def login():
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('hello'))
flash("login failed check your email and password", 'danger')
return render_template('login.html', title="login", form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('home'))
else:
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
flash('You have been logged in!', 'success')
return redirect(url_for('home'))
else:
flash('Login Unsuccessful. Please check username and password',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.hello'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('main.hello'))
else:
flash(f'Incorrect Email or Password entered', 'danger')
return render_template('login.html', title="Login", form=form)
def login():
if current_user.is_authenticated: #if user is already logged in and they click the link to the login page, they are redirected to the homepage
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
#the user is logged in if their password in database matches the password they entered into the login form
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else (url_for('main.home'))
else:
flash('Login Unsuccessful. Please check email and password',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(pw_hash=user.password,
password=form.password.data):
login_user(user=user, remember=form.remember.data)
# fix http://127.0.0.1:5000/login?next=%2Faccount
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('home'))
else:
flash(f'Login Unsuccessful.', 'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for("home"))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password, form.password.data):
login_user(user, remember=form.remember_me.data)
next_page = request.args.get("next")
if next_page:
return redirect(next_page)
else:
return redirect(url_for("home"))
else:
flash("Login unsuceesful", 'danger')
return render_template('login.html', title="login", form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
# inorder to redirect to the intended page if logs in
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('home'))
else:
flash("Login unsuccessful. Please check email or password",
"danger")
return render_template("login.html", title='login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('homepage'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
flash('Welcome {}! You are logged in'.format(user.username),
'success')
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('homepage'))
else:
flash('Login is Bad. Please check', 'danger')
return render_template('login.html', title="Login", form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
# this statement will direct the user to pervious opened page when not loggged
# and direct him to the home page if he just logged in
else:
flash('Login unsuccessfully. Please check email and password',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
# if we try to access account page without logging in then we will redirected to login page
#but after we login we will be redirected to about page directly instead of home page
return redirect(next_page) if next_page else redirect(
url_for('home'))
else:
flash('Login Unsuccessful. Please check email and password',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if(current_user.is_authenticated):
flash('already logged in')
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if(user and bcrypt.check_password_hash(user.password, form.password.data)):
flash(f'{form.email.data} is logged in!', 'success')
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
if next_page:
return redirect(next_page)
else:
return redirect(url_for('main.home'))
else:
flash('Login failed. Please check email and/or password', 'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated: # redirect to home page if user logged in and click on login button
return redirect(
url_for('home')
) # to change login icon when logged in, check layout changes done.
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next') #get argument for user
if next_page:
return redirect(next_page)
else:
return redirect(url_for('home'))
else:
flash("please check you credentials", 'danger')
return render_template('login.html', title="Login", form=form)
def login():
if current_user.is_authenticated:
flash('You are already logged in!', 'warning')
return redirect(url_for('main.index'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
flash(f'You have been logged in!', 'success')
return (redirect(next_page) if next_page else redirect(
url_for('main.index')))
else:
flash('Login Unsucessful. Please check email and password',
'danger')
return render_template('login.html', title='login', form=form)
def signin():
if current_user.is_authenticated:
flash(f'Already signed in!', 'success')
return redirect(url_for('main.home'))
form = SignInForm()
if form.validate_on_submit():
# fake data to check the sign in process
# if form.email.data == '*****@*****.**' and form.password.data == 'password':
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
flash(f'Sign in successful!', 'success')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash(f'Sign in unsuccessful! Please check your credentials!',
'danger')
return render_template('signin.html', title='Sign In', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit(
): # validate_on_submit(): This is a shortcut for form.is_submitted() and form.validate()
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
# login_user() Logs a user in. form.remember.data is a True/False value if checked(True) or unchecked(False)
# login_user(): This will return True if the log in attempt succeeds, and False if it fails
login_user(user, remember=form.remember.data)
# after loggging in, access the page you were viewing before you logged in.
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash(f'Login Unsuccessful. Please check email and password!',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect("home")
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if not user:
flash("User does not exist", "danger")
else:
if bcrypt.check_password_hash(user.password, form.password.data):
login_user(user, remember=form.remember.data)
flash('Login Successful', "success")
next_page = request.args.get("next")
return redirect(next_page) if next_page else redirect("home")
else:
flash("Incorrect Password", "danger")
return render_template("login.html", form=form)
def login():
if current_user.is_authenticated:
flash(f'Already logged in!')
return redirect(url_for('blog'))
# Create an instance of your RegistrationForm to pass to a template
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get(
'next'
) # args is a dictionary, but use get access for empty case (returns None)
return redirect(next_page) if next_page else redirect(
url_for('blog'))
else:
flash(
'Login attempt unsuccessful. Please check email and password.',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
# Get the user email from the form
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
# Log the user in
login_user(user, remember=form.remember.data)
# Get next param from the URL
next_page = request.args.get('next')
if next_page:
return redirect(next_page)
else:
return redirect(url_for('main.home'))
else:
flash('Login Unsuccesful. Please check email and password',
'danger')
return render_template('login.html', title="Log In", form=form)
def account_login():
if current_user.is_authenticated:
return redirect(url_for('posts.posts_list'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and user.active and bcrypt.check_password_hash(
user.password, form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('posts.posts_list'))
flash(f'Wrong login data', 'danger')
return render_template('accounts/account_login.html',
title="Login",
form=form)
def login():
if current_user.is_authenticated:
flash(f'无效操作：{current_user.username} 你已在登陆状态', 'danger')
return redirect(url_for('main.home'))
form = LoginForm()
rest_password_form = RequestResetPasswordForm() # modal from
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
flash(f'登陆成功', 'primary')
# print(dict(request.args)) # 转dict显示
next_page = request.args.get('next')
return redirect(
url_for('users.account')) if next_page else redirect(
url_for('main.home'))
else:
flash(f'登陆失败 ： 邮箱或密码错误', 'danger')
return render_template('login.html',
form=form,
title='登陆',
rest_form=rest_password_form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.home_page'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password, form.password.data):
login_user(user, remember=form.remember.data)
# jump to the attempted page(if any) before logged in
# using get method otherwise it would raise a error when a query with dict key from a dict is not exist
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(url_for('main.home_page'))
else: # could remove this unrelated else branch
flash('Login Unsuccessful, Please check email and password', 'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
#Take first entry where email in form matches email in database if it exists
user = User.query.filter_by(email=form.email.data).first()
#Check if password and password hash matches
if user and bcrypt.check_password_hash(user.password,
form.password.data):
#Log the user in. Read the docs for flask-login
login_user(user, remember=form.remember.data)
#Optional, adds the capability to return to the page you were trying to visit before a login prompt
next_page = request.args.get('next')
flash('Logged in successfully!', 'success')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash('Login failed. Please check email and password.', 'danger')
return render_template('login.html', form=form, title='Login')
def password_reset_confirm(token):
if current_user.is_authenticated:
return redirect(url_for('posts.posts_list'))
form = PasswordResetForm()
user = User.confirm_usr_verify_token(token)
if user and form.validate_on_submit():
"""create a hashed password"""
if not bcrypt.check_password_hash(user.password, form.password.data):
hashed_pw = bcrypt.generate_password_hash(
form.password.data).decode('utf-8')
user.password = hashed_pw
db.session.commit()
flash('Your password has been reset', 'success')
return redirect(url_for('users.account_login'))
return render_template('accounts/password_reset_confirm.html',
title="Password reset confirmation",
form=form)
def login():
#incase the user is trying to login although he has been authentcated, then route him
#to the home page
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
#check if user exists with the email address:
user = User.query.filter_by(email=form.email.data).first()
password_hashed = user.password
if user and bcrypt.check_password_hash(pw_hash=password_hashed,
password=form.password.data):
login_user(user=user, remember=form.remember.data)
nextpage = request.args.get('next')
flash(message=f"Login Successfull for {form.email.data}",
category='success')
return redirect(nextpage) if nextpage else redirect(
url_for('main.home'))
else:
flash(
message="Login Unsuccessful. Please Check Email and Password",
category='danger')
return (redirect(url_for("main.home")))
return render_template('login.html', title='Login', form=form)
def verify_password(self, password):
return bcrypt.check_password_hash(self._password_hash, password)
