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import sys
from datetime import datetime
from os import environ
from shutil import which
from babel import parse_locale
from flask import Flask, abort, g, redirect, url_for
from flask_babel import Babel, get_locale
from flask_login import LoginManager, login_required
from flask_wtf.csrf import CSRFProtect
from jinja2 import ChainableUndefined
from markupsafe import Markup
from werkzeug.middleware.proxy_fix import ProxyFix
from .css import compile_css_command
from .read_mails import load_user
from .render_mail import format_mail
from .webmail import (
about,
displayheaders,
login,
logout,
move,
readmail,
remove,
sendmail,
writemail,
)
if sys.version_info >= (3, 11):
from tomllib import load as toml_load
toml_read_file = dict(load=toml_load, text=False)
else:
from toml import load as toml_load
toml_read_file = dict(load=toml_load, text=True)
__version__ = "2.8.3.dev0"
csrf = CSRFProtect()
def validate_config(app):
conf = app.config
assert "@" in conf["JWEBMAIL"]["ADMIN_MAIL"]
assert which(conf["JWEBMAIL"]["READ_MAILS"]["BACKEND"])
assert which(
conf["JWEBMAIL"]["READ_MAILS"].setdefault("AUTHENTICATOR", "qmail-authuser")
)
def create_app():
app = Flask(__name__)
app.jinja_options = dict(undefined=ChainableUndefined, extensions=["jinja2.ext.do"])
if app.config["DEBUG"]:
app.config.from_file("../../jwebmail.toml", **toml_read_file)
else:
app.config.from_file(environ["JWEBMAIL_CONFIG"], **toml_read_file)
if app.config["JWEBMAIL"].get("PROXY"):
app.wsgi_app = ProxyFix(
app.wsgi_app, x_for=True, x_proto=True, x_host=True, x_prefix=True
)
validate_config(app)
csrf.init_app(app)
babel = Babel(app, locale_selector=lambda: g.get("lang_code"))
app.cli.add_command(compile_css_command)
login_manager = LoginManager()
login_manager.login_view = "login"
login_manager.user_loader(load_user)
login_manager.init_app(app)
route(app)
tr_dict = {
"en": str.maketrans({" ": " "}),
"de": str.maketrans({".": ",", " ": " "}),
}
@app.template_filter("num_localize")
def num_localize(txt):
if str(get_locale()).startswith("de"):
return Markup(txt.translate(tr_dict["de"]))
else:
return Markup(txt.translate(tr_dict["en"]))
@app.context_processor
def inject_version():
return {
"version": __version__,
"get_locale": get_locale,
"format_mail": format_mail,
"parse_iso_date": datetime.fromisoformat,
}
@app.url_defaults
def add_language_code(endpoint, values):
if "lang_code" in values:
return
if app.url_map.is_endpoint_expecting(endpoint, "lang_code"):
values["lang_code"] = g.get("lang_code", babel.default_locale.language)
@app.url_value_preprocessor
def pull_lang_code(endpoint, values):
if values and values.get("lang_code"):
try:
pl = parse_locale(values["lang_code"])
if pl[0] in ["en", "de"]:
g.lang_code = values.pop("lang_code")
else:
abort(404)
except ValueError:
abort(404)
return app
def route(app):
app.add_url_rule(
"/",
endpoint="root",
view_func=lambda: redirect(url_for("login", lang_code=get_locale().language)),
)
app.add_url_rule("/<lang_code>/", view_func=login, methods=["GET", "POST"])
app.add_url_rule("/<lang_code>/about", view_func=about)
app.add_url_rule("/<lang_code>/logout", view_func=logout)
dh = login_required(displayheaders)
app.add_url_rule("/<lang_code>/home/", view_func=dh)
app.add_url_rule("/<lang_code>/home/<folder>", view_func=dh)
lr_readmail = login_required(readmail)
app.add_url_rule(
"/<lang_code>/read/<msgid>", endpoint="read", view_func=lr_readmail
)
app.add_url_rule(
"/<lang_code>/read/<folder>/<msgid>", endpoint="read", view_func=lr_readmail
)
lr_writemail = login_required(writemail)
app.add_url_rule("/<lang_code>/write", endpoint="write", view_func=lr_writemail)
app.add_url_rule(
"/<lang_code>/write",
endpoint="send",
view_func=login_required(sendmail),
methods=["POST"],
)
lr_move = login_required(move)
app.add_url_rule("/<lang_code>/move/", view_func=lr_move, methods=["POST"])
app.add_url_rule("/<lang_code>/move/<folder>", view_func=lr_move, methods=["POST"])
lr_remove = login_required(remove)
app.add_url_rule(
"/<lang_code>/remove/",
view_func=lr_remove,
methods=["POST"],
)
app.add_url_rule(
"/<lang_code>/remove/<folder>",
view_func=lr_remove,
methods=["POST"],
)
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