contentdb/app/__init__.py

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# ContentDB
# Copyright (C) 2018-21 rubenwardy
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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
# (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
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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 datetime
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import os
import redis
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from flask import redirect, url_for, render_template, flash, request, Flask, send_from_directory, make_response, render_template_string
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from flask_babel import Babel, gettext
from flask_flatpages import FlatPages
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from flask_flatpages.utils import pygmented_markdown
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from flask_github import GitHub
from flask_login import logout_user, current_user, LoginManager
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from flask_mail import Mail
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from flask_wtf.csrf import CSRFProtect
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from app.markdown import init_markdown, MARKDOWN_EXTENSIONS, MARKDOWN_EXTENSION_CONFIG
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import sentry_sdk
from sentry_sdk.integrations.flask import FlaskIntegration
if os.getenv("SENTRY_DSN"):
def before_send(event, hint):
from app.tasks import TaskError
if "exc_info" in hint:
exc_type, exc_value, tb = hint["exc_info"]
if isinstance(exc_value, TaskError):
return None
return event
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environment = os.getenv("SENTRY_ENVIRONMENT")
assert environment is not None
sentry_sdk.init(
dsn=os.getenv("SENTRY_DSN"),
environment=environment,
integrations=[FlaskIntegration()],
# Set traces_sample_rate to 1.0 to capture 100%
# of transactions for performance monitoring.
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traces_sample_rate=0.1,
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# Set profiles_sample_rate to 1.0 to profile 100%
# of sampled transactions.
# We recommend adjusting this value in production.
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profiles_sample_rate=0.1,
before_send=before_send,
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)
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app = Flask(__name__, static_folder="public/static")
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def my_flatpage_renderer(text):
# Render with jinja first
prerendered_body = render_template_string(text)
return pygmented_markdown(prerendered_body, flatpages=pages)
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app.config["FLATPAGES_ROOT"] = "flatpages"
app.config["FLATPAGES_EXTENSION"] = ".md"
app.config["FLATPAGES_MARKDOWN_EXTENSIONS"] = MARKDOWN_EXTENSIONS
app.config["FLATPAGES_EXTENSION_CONFIG"] = MARKDOWN_EXTENSION_CONFIG
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app.config["FLATPAGES_HTML_RENDERER"] = my_flatpage_renderer
app.config["WTF_CSRF_TIME_LIMIT"] = None
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app.config["BABEL_TRANSLATION_DIRECTORIES"] = "../translations"
app.config["LANGUAGES"] = {
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"en": "English",
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"de": "Deutsch",
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"es": "Español",
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"fr": "Français",
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"id": "Bahasa Indonesia",
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"it": "Italiano",
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"ms": "Bahasa Melayu",
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"pl": "Język Polski",
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"ru": "русский язык",
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"sk": "Slovenčina",
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"sv": "Svenska",
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"tr": "Türkçe",
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"uk": "Українська",
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"vi": "tiếng Việt",
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"zh_CN": "汉语",
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}
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app.config.from_pyfile(os.environ["FLASK_CONFIG"])
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if not app.config["ADMIN_CONTACT_URL"]:
raise Exception("Missing config property: ADMIN_CONTACT_URL")
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redis_client = redis.Redis.from_url(app.config["REDIS_URL"])
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github = GitHub(app)
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csrf = CSRFProtect(app)
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mail = Mail(app)
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pages = FlatPages(app)
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babel = Babel()
init_markdown(app)
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login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = "users.login"
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from .sass import init_app as sass
sass(app)
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from . import models, template_filters
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@login_manager.user_loader
def load_user(user_id):
return models.User.query.filter_by(username=user_id).first()
from .blueprints import create_blueprints
create_blueprints(app)
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@app.route("/uploads/<path:path>")
def send_upload(path):
return send_from_directory(app.config["UPLOAD_DIR"], path)
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@app.route("/<path:path>/")
def flatpage(path):
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page = pages.get_or_404(path)
template = page.meta.get("template", "flatpage.html")
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return render_template(template, page=page)
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@app.before_request
def check_for_ban():
if current_user.is_authenticated:
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if current_user.ban and current_user.ban.has_expired:
models.db.session.delete(current_user.ban)
if current_user.rank == models.UserRank.BANNED:
current_user.rank = models.UserRank.MEMBER
models.db.session.commit()
elif current_user.is_banned:
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if current_user.ban:
flash(gettext("Banned:") + " " + current_user.ban.message, "danger")
else:
flash(gettext("You have been banned."), "danger")
logout_user()
return redirect(url_for("users.login"))
elif current_user.rank == models.UserRank.NOT_JOINED:
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current_user.rank = models.UserRank.NEW_MEMBER
models.db.session.commit()
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from .utils import clear_notifications, is_safe_url, create_session
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@app.before_request
def check_for_notifications():
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clear_notifications(request.path)
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@app.errorhandler(404)
def page_not_found(e):
return render_template("404.html"), 404
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@app.errorhandler(500)
def server_error(e):
return render_template("500.html"), 500
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def get_locale():
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if not request:
return None
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locales = app.config["LANGUAGES"].keys()
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if current_user.is_authenticated and current_user.locale in locales:
return current_user.locale
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locale = request.cookies.get("locale")
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if locale not in locales:
locale = request.accept_languages.best_match(locales)
if locale and current_user.is_authenticated:
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with create_session() as new_session:
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new_session.query(models.User) \
.filter(models.User.username == current_user.username) \
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.update({"locale": locale})
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new_session.commit()
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return locale
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babel.init_app(app, locale_selector=get_locale)
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@app.route("/set-locale/", methods=["POST"])
@csrf.exempt
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def set_locale():
locale = request.form.get("locale")
if locale not in app.config["LANGUAGES"].keys():
flash("Unknown locale {}".format(locale), "danger")
locale = None
next_url = request.form.get("r")
if next_url and is_safe_url(next_url):
resp = make_response(redirect(next_url))
else:
resp = make_response(redirect(url_for("homepage.home")))
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if locale:
expire_date = datetime.datetime.now()
expire_date = expire_date + datetime.timedelta(days=5*365)
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resp.set_cookie("locale", locale, expires=expire_date, secure=True, samesite="Lax")
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if current_user.is_authenticated:
current_user.locale = locale
models.db.session.commit()
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return resp
@app.route("/set-nonfree/", methods=["POST"])
def set_nonfree():
resp = redirect(url_for("homepage.home"))
if request.cookies.get("hide_nonfree") == "1":
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resp.set_cookie("hide_nonfree", "0", expires=0, secure=True, samesite="Lax")
else:
expire_date = datetime.datetime.now()
expire_date = expire_date + datetime.timedelta(days=5*365)
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resp.set_cookie("hide_nonfree", "1", expires=expire_date, secure=True, samesite="Lax")
return resp