mirror of
https://github.com/minetest/contentdb.git
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209 lines
6.7 KiB
Python
209 lines
6.7 KiB
Python
# ContentDB
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# Copyright (C) 2018-21 rubenwardy
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import typing
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from typing import Dict
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from flask import render_template, escape
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from flask_babel import force_locale, gettext, lazy_gettext, LazyString
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from flask_mail import Message
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from app import mail
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from app.models import Notification, db, EmailSubscription, User
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from app.tasks import celery
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from app.utils import abs_url_for, abs_url, random_string
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def get_email_subscription(email):
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assert type(email) == str
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ret = EmailSubscription.query.filter_by(email=email).first()
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if not ret:
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ret = EmailSubscription(email)
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ret.token = random_string(32)
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db.session.add(ret)
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db.session.commit()
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return ret
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def gen_headers(sub: EmailSubscription, is_bulk: bool) -> Dict[str,str]:
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headers = {"List-Help": f"<{abs_url_for('flatpage', path='help/faq/')}>", "List-Unsubscribe": f"<{sub.url}>"}
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if is_bulk:
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headers["Precedence"] = "Bulk"
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return headers
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@celery.task()
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def send_verify_email(email, token, locale):
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sub = get_email_subscription(email)
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if sub.blacklisted:
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return
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with force_locale(locale or "en"):
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msg = Message("Confirm email address", recipients=[email], extra_headers=gen_headers(sub, False))
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msg.body = """
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This email has been sent to you because someone (hopefully you)
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has entered your email address as a user's email.
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If it wasn't you, then just delete this email.
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If this was you, then please click this link to confirm the address:
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{}
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""".format(abs_url_for('users.verify_email', token=token))
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msg.html = render_template("emails/verify.html", token=token, sub=sub)
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mail.send(msg)
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@celery.task()
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def send_unsubscribe_verify(email, locale):
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sub = get_email_subscription(email)
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if sub.blacklisted:
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return
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with force_locale(locale or "en"):
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msg = Message("Confirm unsubscribe", recipients=[email], extra_headers=gen_headers(sub, False))
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msg.body = """
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We're sorry to see you go. You just need to do one more thing before your email is blacklisted.
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Click this link to blacklist email: {}
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""".format(abs_url_for('users.unsubscribe', token=sub.token))
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msg.html = render_template("emails/verify_unsubscribe.html", sub=sub)
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mail.send(msg)
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@celery.task(rate_limit="25/m")
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def send_email_with_reason(email: str, locale: str, subject: str, text: str, html: str,
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reason: typing.Union[str, LazyString], conn: any):
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sub = get_email_subscription(email)
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if sub.blacklisted:
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return
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with force_locale(locale or "en"):
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msg = Message(subject, recipients=[email], extra_headers=gen_headers(sub, conn is not None))
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msg.body = text
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html = html or f"<pre>{escape(text)}</pre>"
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msg.html = render_template("emails/base.html", subject=subject, content=html, reason=reason, sub=sub)
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if conn:
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conn.send(msg)
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else:
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mail.send(msg)
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@celery.task(rate_limit="25/m")
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def send_user_email(email: str, locale: str, subject: str, text: str, html=None, conn=None):
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return send_email_with_reason(email, locale, subject, text, html,
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lazy_gettext("You are receiving this email because you are a registered user of ContentDB."), conn)
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@celery.task(rate_limit="25/m")
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def send_anon_email(email: str, locale: str, subject: str, text: str, html=None):
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return send_email_with_reason(email, locale, subject, text, html,
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lazy_gettext("You are receiving this email because someone (hopefully you) entered your email address as a user's email."), None)
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def send_single_email(notification, locale):
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sub = get_email_subscription(notification.user.email)
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if sub.blacklisted:
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return
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with force_locale(locale or "en"):
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msg = Message(notification.title, recipients=[notification.user.email], extra_headers=gen_headers(sub, False))
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msg.body = """
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New notification: {}
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View: {}
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Manage email settings: {}
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Unsubscribe: {}
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""".format(notification.title, abs_url(notification.url),
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abs_url_for("users.email_notifications", username=notification.user.username),
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abs_url_for("users.unsubscribe", token=sub.token))
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msg.html = render_template("emails/notification.html", notification=notification, sub=sub)
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mail.send(msg)
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def send_notification_digest(notifications: [Notification], locale):
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user = notifications[0].user
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sub = get_email_subscription(user.email)
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if sub.blacklisted:
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return
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with force_locale(locale or "en"):
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msg = Message(gettext("%(num)d new notifications", num=len(notifications)), recipients=[user.email])
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msg.body = "".join(["<{}> {}\n{}: {}\n\n".format(notification.causer.display_name, notification.title, gettext("View"), abs_url(notification.url)) for notification in notifications])
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msg.body += "{}: {}\n{}: {}".format(
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gettext("Manage email settings"),
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abs_url_for("users.email_notifications", username=user.username),
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gettext("Unsubscribe"),
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abs_url_for("users.unsubscribe", token=sub.token))
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msg.html = render_template("emails/notification_digest.html", notifications=notifications, user=user, sub=sub)
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mail.send(msg)
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@celery.task()
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def send_pending_digests():
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for user in User.query.filter(User.notifications.any(emailed=False)).all():
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to_send = []
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for notification in user.notifications:
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if not notification.emailed and notification.can_send_digest():
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to_send.append(notification)
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notification.emailed = True
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if len(to_send) > 0:
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send_notification_digest(to_send, user.locale or "en")
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db.session.commit()
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@celery.task()
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def send_pending_notifications():
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for user in User.query.filter(User.notifications.any(emailed=False)).all():
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to_send = []
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for notification in user.notifications:
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if not notification.emailed:
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if notification.can_send_email():
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to_send.append(notification)
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notification.emailed = True
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elif not notification.can_send_digest():
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notification.emailed = True
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db.session.commit()
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if len(to_send) > 1:
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send_notification_digest(to_send, user.locale or "en")
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elif len(to_send) > 0:
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send_single_email(to_send[0], user.locale or "en")
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@celery.task()
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def send_bulk_email(subject: str, text: str, html=None):
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with mail.connect() as conn:
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for user in User.query.filter(User.email.isnot(None)).all():
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send_user_email(user.email, user.locale or "en", subject, text, html, conn)
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