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import json
import logging
from datetime import datetime
from werkzeug.security import generate_password_hash
from werkzeug.exceptions import NotFound
from flask import (
render_template,
flash,
session,
request,
url_for,
redirect,
current_app,
)
from flask_babel import gettext, lazy_gettext
from flask_login import LoginManager, logout_user, login_required, current_user
from flask_principal import (
Principal,
AnonymousIdentity,
UserNeed,
identity_changed,
identity_loaded,
session_identity_loader,
)
import conf
from web.views.common import admin_role, api_role, login_user_bundle
from web.controllers import UserController
from web.forms import SignupForm, SigninForm
from notifications import notifications
Principal(current_app)
# Create a permission with a single Need, in this case a RoleNeed.
login_manager = LoginManager()
login_manager.init_app(current_app)
login_manager.login_view = "login"
login_manager.login_message = lazy_gettext("Please log in to access this page.")
login_manager.login_message_category = "info"
logger = logging.getLogger(__name__)
@identity_loaded.connect_via(current_app._get_current_object())
def on_identity_loaded(sender, identity):
# Set the identity user object
identity.user = current_user
# Add the UserNeed to the identity
if current_user.is_authenticated:
identity.provides.add(UserNeed(current_user.id))
if current_user.is_admin:
identity.provides.add(admin_role)
if current_user.is_api:
identity.provides.add(api_role)
@login_manager.user_loader
def load_user(user_id):
return UserController(user_id, ignore_context=True).get(id=user_id, is_active=True)
@current_app.before_request
def before_request():
if current_user.is_authenticated:
UserController(current_user.id).update(
{"id": current_user.id}, {"last_seen": datetime.utcnow()}
)
@current_app.route("/login", methods=["GET", "POST"])
def login():
if current_user.is_authenticated:
return redirect(url_for("home"))
form = SigninForm()
if form.validate_on_submit():
login_user_bundle(form.user)
return form.redirect("home")
return render_template("login.html", form=form)
@current_app.route("/logout")
@login_required
def logout():
# Remove the user information from the session
logout_user()
# Remove session keys set by Flask-Principal
for key in ("identity.name", "identity.auth_type"):
session.pop(key, None)
# Tell Flask-Principal the user is anonymous
identity_changed.send(current_app, identity=AnonymousIdentity())
session_identity_loader()
return redirect(url_for("login"))
@current_app.route("/signup", methods=["GET", "POST"])
def signup():
if not conf.SELF_REGISTRATION:
flash(gettext("Self-registration is disabled."), "warning")
return redirect(url_for("home"))
if current_user.is_authenticated:
return redirect(url_for("home"))
form = SignupForm()
if form.validate_on_submit():
user = UserController().create(
nickname=form.nickname.data,
pwdhash=generate_password_hash(form.password.data),
)
# Send the confirmation email
try:
notifications.new_account_notification(user, form.email.data)
except Exception as error:
flash(
gettext(
"Problem while sending activation email: %(error)s", error=error
),
"danger",
)
return redirect(url_for("home"))
flash(
gettext("Your account has been created. " "Check your mail to confirm it."),
"success",
)
return redirect(url_for("home"))
return render_template("signup.html", form=form)
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