contentdb/app/blueprints/users/account.py

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# ContentDB
# Copyright (C) 2020 rubenwardy
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from flask import *
from flask_login import current_user, login_required, logout_user, login_user
from flask_wtf import FlaskForm
from sqlalchemy import or_
from wtforms import *
from wtforms.validators import *
from app.models import *
from app.tasks.emails import sendVerifyEmail, sendEmailRaw
from app.utils import randomString, make_flask_login_password, is_safe_url, check_password_hash
from passlib.pwd import genphrase
from . import bp
class LoginForm(FlaskForm):
username = StringField("Username or email", [InputRequired()])
password = PasswordField("Password", [InputRequired(), Length(6, 100)])
remember_me = BooleanField("Remember me")
submit = SubmitField("Login")
def handle_login(form):
def show_safe_err(err):
if "@" in username:
flash("Incorrect email or password", "danger")
else:
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flash(err, "danger")
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username = form.username.data.strip()
user = User.query.filter(or_(User.username == username, User.email == username)).first()
if user is None:
return show_safe_err("User {} does not exist".format(username))
if not check_password_hash(user.password, form.password.data):
return show_safe_err("Incorrect password. Did you set one?")
if not user.is_active:
flash("You need to confirm the registration email", "danger")
return
login_user(user)
flash("Logged in successfully.", "success")
next = request.args.get("next")
if next and not is_safe_url(next):
abort(400)
return redirect(next or url_for("homepage.home"))
@bp.route("/user/login/", methods=["GET", "POST"])
def login():
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if current_user.is_authenticated:
next = request.args.get("next")
if next and not is_safe_url(next):
abort(400)
return redirect(next or url_for("homepage.home"))
form = LoginForm(request.form)
if form.validate_on_submit():
ret = handle_login(form)
if ret:
return ret
return render_template("users/login.html", form=form)
@bp.route("/user/logout/", methods=["GET", "POST"])
def logout():
logout_user()
return redirect(url_for("homepage.home"))
class RegisterForm(FlaskForm):
username = StringField("Username", [InputRequired()])
email = StringField("Email", [InputRequired(), Email()])
password = PasswordField("Password", [InputRequired(), Length(6, 100)])
submit = SubmitField("Register")
@bp.route("/user/register/", methods=["GET", "POST"])
def register():
form = RegisterForm(request.form)
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user:
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sendEmailRaw.delay([form.email.data], "Email already in use",
"We were unable to create the account as the email is already in use by {}. Try a different email address.".format(user.display_name))
else:
user = User(form.username.data, False, form.email.data, make_flask_login_password(form.password.data))
db.session.add(user)
token = randomString(32)
ver = UserEmailVerification()
ver.user = user
ver.token = token
ver.email = form.email.data
db.session.add(ver)
db.session.commit()
sendVerifyEmail.delay(form.email.data, token)
flash("Check your email address to verify your account", "success")
return redirect(url_for("homepage.home"))
return render_template("users/register.html", form=form, suggested_password=genphrase(entropy=52, wordset="bip39"))
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class ForgotPasswordForm(FlaskForm):
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email = StringField("Email", [InputRequired(), Email()])
submit = SubmitField("Reset Password")
@bp.route("/user/forgot-password/", methods=["GET", "POST"])
def forgot_password():
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form = ForgotPasswordForm(request.form)
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if form.validate_on_submit():
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email = form.email.data
user = User.query.filter_by(email=email).first()
if user:
token = randomString(32)
ver = UserEmailVerification()
ver.user = user
ver.token = token
ver.email = email
ver.is_password_reset = True
db.session.add(ver)
db.session.commit()
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sendVerifyEmail.delay(form.email.data, token)
else:
sendEmailRaw.delay([email], "Unable to find account", """
<p>
We were unable to perform the password reset as we could not find an account
associated with this email.
</p>
<p>
If you weren't expecting to receive this email, then you can safely ignore it.
</p>
""")
flash("Check your email address to continue the reset", "success")
return redirect(url_for("homepage.home"))
return render_template("users/forgot_password.html", form=form)
class SetPasswordForm(FlaskForm):
email = StringField("Email", [Optional(), Email()])
password = PasswordField("New password", [InputRequired(), Length(8, 100)])
password2 = PasswordField("Verify password", [InputRequired(), Length(8, 100)])
submit = SubmitField("Save")
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class ChangePasswordForm(FlaskForm):
old_password = PasswordField("Old password", [InputRequired(), Length(8, 100)])
password = PasswordField("New password", [InputRequired(), Length(8, 100)])
password2 = PasswordField("Verify password", [InputRequired(), Length(8, 100)])
submit = SubmitField("Save")
def handle_set_password(form):
one = form.password.data
two = form.password2.data
if one != two:
flash("Passwords do not much", "danger")
return
current_user.password = make_flask_login_password(form.password.data)
db.session.commit()
flash("Your password has been changed successfully.", "success")
if hasattr(form, "email"):
newEmail = form.email.data
if newEmail != current_user.email and newEmail.strip() != "":
token = randomString(32)
ver = UserEmailVerification()
ver.user = current_user
ver.token = token
ver.email = newEmail
db.session.add(ver)
db.session.commit()
task = sendVerifyEmail.delay(newEmail, token)
return redirect(
url_for("tasks.check", id=task.id, r=url_for("users.profile", username=current_user.username)))
return redirect(url_for("homepage.home"))
@bp.route("/user/change-password/", methods=["GET", "POST"])
@login_required
def change_password():
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form = ChangePasswordForm(request.form)
if current_user.email is None:
form.email.validators = [InputRequired(), Email()]
if form.validate_on_submit():
if check_password_hash(current_user.password, form.old_password.data):
ret = handle_set_password(form)
if ret:
return ret
else:
flash("Old password is incorrect", "danger")
return render_template("users/change_set_password.html", form=form,
suggested_password=genphrase(entropy=52, wordset="bip39"))
@bp.route("/user/set-password/", methods=["GET", "POST"])
@login_required
def set_password():
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if current_user.password:
return redirect(url_for("users.change_password"))
form = SetPasswordForm(request.form)
if current_user.email is None:
form.email.validators = [InputRequired(), Email()]
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if form.validate_on_submit():
ret = handle_set_password(form)
if ret:
return ret
return render_template("users/change_set_password.html", form=form, optional=request.args.get("optional"),
suggested_password=genphrase(entropy=52, wordset="bip39"))
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@bp.route("/user/verify/")
def verify_email():
token = request.args.get("token")
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ver : UserEmailVerification = UserEmailVerification.query.filter_by(token=token).first()
if ver is None:
flash("Unknown verification token!", "danger")
return redirect(url_for("homepage.home"))
was_activating = not ver.user.is_active
ver.user.is_active = True
ver.user.email = ver.email
db.session.delete(ver)
db.session.commit()
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if ver.is_password_reset:
login_user(ver.user)
ver.user.password = None
db.session.commit()
return redirect(url_for("users.set_password"))
if current_user.is_authenticated:
return redirect(url_for("users.profile", username=current_user.username))
elif was_activating:
flash("You may now log in", "success")
return redirect(url_for("users.login"))
else:
return redirect(url_for("homepage.home"))