def login():
"""login authentication"""
if current_user.is_authenticated:
return redirect(url_for("main.home"))
form = LoginForm()
if form.validate_on_submit():
# checks if email has been taken
user = User.query.filter_by(email=form.email.data).first()
# checks if email and password has been validated
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 your email and password", "danger")
return render_template("login.html", title="Login", form=form)
def login():
form = LoginForm()
email = form.email.data
password = form.password.data
remember = form.remember.data
if form.validate_on_submit():
print(Users.query.all())
user = Users.query.filter_by(email=email).first()
if user and bcrypt.check_password_hash(user.password, password):
login_user(user, remember=remember)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash('Login unsuccessful', '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('Вход запрещен. Пожалуйста, проверьте имейл и пароль',
'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect('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.pw, 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'))
# flash(f'omg welcome back {}')
else:
flash('Login unsuccessful, please check your email and password',
'danger')
return render_template('login.html', title='login nao', 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')
if next_page:
return redirect(next_page)
else:
return 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():
# if current user is already logged in, they should not be able to access login page
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()
# match hash of password
if user and bcrypt.check_password_hash(user.password, form.password.data):
login_user(user, remember=form.remember.data)
# after logging in, redirect to restricted page that user was trying to access, without login
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()
print('user--->', user.password)
print(form.email.data)
print(form.password.data)
if user and bcrypt.check_password_hash(user.password, form.password.data):
print('yes')
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
flash(f'login success!', 'success')
return redirect(next_page) if next_page else redirect(url_for('mains.home'))
else:
flash(f'Failed to login!', '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 username and password.',
'danger')
return render_template('login.html', title='Register', 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')
print('login : next_page', next_page)
# ternary conditon applied here. if true then left stat will execute neither right stat will be executed
return redirect(next_page) if next_page else redirect(url_for('main.home'))
else:
flash("Login Unsuccessful! please check email and password", "danger")
print("GET")
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')
flash('Succesfully logged in!', 'success')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash('Invalid email or password!', 'danger ')
return render_template("login.html", title="Login", form=form)
def login():
if current_user.is_authenticated:
return redirect('/')
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and brcypt.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('/')
else:
flash(f'Logging 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('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'
) # get return none if key not exist, dictionary key will raise error
return redirect(next_page) if next_page else redirect(
url_for('main.home')) # python ternary operator
flash('Unsuccessful login, please check email and password',
'ui negative message')
return render_template('login.html', form=form, title='Login')
def login():
if current_user.is_authenticated:
return redirect(url_for("home"))
form = LoginForm()
if form.validate_on_submit():
# check's if user exists in the db
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)
# if an unauthenticated user wnats to access a @login_required route, the login page will load
# and when he logs in, the server will return the page that he wanted to enter
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 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 request.method == 'POST':
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')
return redirect(url_for(
'main.home')) if not next_page else redirect(next_page)
else:
flash('Login unsuccessful, please check e-mail and password',
'failed')
return render_template('login.html', title='Log in', 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 user.check_user_password(form.password.data):
login_user(user, remember=form.remember.data)
next_url = request.args.get('next')
# 防止重定向攻击
if not next_url or not next_url.startswith('/'):
next_url = url_for('main.home')
return redirect(next_url)
else:
flash('Login Unsuccessful. Please check email and password.',
'danger')
return render_template('login.html', form=form, title='Login')
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()
print("emails is: ", str(user))
if user and bcrypt.check_password_hash(user.password, form.password.data):
login_user(user, remember=form.remember.data)
flash('You were logged in')
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')
else:
print("not validate on submit")
return render_template('login.html', title="Login", form=form)
def login_page():
form = LoginForm()
if current_user.is_authenticated:
return redirect(url_for("main.home_page"))
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and brcypt.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_page")))
else:
flash("Login Unsuccessful. Please check the 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'))
login_form = LoginForm()
if login_form.validate_on_submit():
user = User.query.filter_by(email=login_form.email.data).first()
if user and bcrypt.check_password_hash(user.password,
login_form.password.data):
login_user(user, remember=login_form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect('home')
else:
flash(f'Check email or password', 'danger')
return render_template('login.html',
title='Login',
form=login_form,
num_registered=User.get_num_registered())
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()
#check is user exists and pass verfies
if user and bcrypt.check_password_hash(user.password, form.password.data):
#log them in using our login extension
login_user(user, remember=form.remember.data)
#args is a dictionary, get method returns none if next doesn't exsist
# getting the next page
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():
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)
# on the url when redirected to login from another page (url encoded)
next_page = request.args.get("next")
# python version of C++ ternary: x > 0 ? true : false;
return redirect(next_page) if next_page else redirect(
url_for("main.home"))
else:
flash(f"Login failed. 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('users.login'))
form = LoginForm()
if form.validate_on_submit():
user = session.query(User).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('You have been logged in!', 'success')
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():
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'
) # args is a key, but we do not use [] for access as it will throw error on key absence where get will return None
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash('Login Unsuccessful. Please check email/password', 'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
flash("You are already logged in!", category='success')
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 bcrpyt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data)
#flash("You have been logged in!",category='success')
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash("Login unsuccesfull", category='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'))
# these 2 lines above are only for when user is logged out and access the account page, in which
# case a 'next' argument is generated in the address bar indicating where we'll go after login
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('main.home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(username=form.username.data,
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')
) # turnery conditionnal when if else in same line and if next_ mean if next_ is not none
else:
flash('Login failed. Please check username ,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()
password_checking = bcrypt.check_password_hash(user.password,
form.password.data)
if user and password_checking:
login_user(user, remember=form.remember_me.data)
next_page = request.args.get("next")
return redirect(next_page) if next_page else redirect(
url_for("main.home"))
else:
flash(
f"Login Was Unsuccessful 😕, Please check your 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):
#if user is exist and password iscorrect so we neeed tolog user and we use the login functio
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 Unsuccesfull,Check you credential', '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)
# use of get method to return the route for the next page
next_page = request.args.get('next')
# redirect to next page if next_page exists elso goto home page
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():
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)
flash(f'You have successfully logged in!', 'success')
next_page = request.args.get(
'next') # retrieve the route parameter from the url query
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():
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
user = User.find_by_email(email=form.email.data)
if user and bcrypt.check_password_hash(user.password,
form.password.data):
login_user(user, remember=form.remember.data) # set current_user
# Redirect user to th restricted page on login else send them home
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(
url_for('main.home'))
else:
flash('Authentication Failed', 'danger')
return render_template('login.html', title='LogIn', form=form)
