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# This file is part of TALER
# (C) 2017 INRIA
#
# TALER is free software; you can redistribute it and/or modify it under the
# terms of the GNU Affero General Public License as published by the Free Software
# Foundation; either version 3, or (at your option) any later version.
#
# TALER 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
# TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
#
# @author Florian Dold
import os
from urllib.parse import urlparse
from django.urls import reverse, get_script_prefix
from django.conf import settings
from jinja2 import Environment
def is_absolute(urloc):
return bool(urlparse(urloc).netloc)
def join_urlparts(*parts):
ret = ""
part = 0
while part < len(parts):
buf = parts[part]
part += 1
if ret.endswith("/"):
buf = buf.lstrip("/")
elif ret and not buf.startswith("/"):
buf = "/" + buf
ret += buf
return ret
def static(urloc):
if is_absolute(urloc):
return urloc
return join_urlparts(get_script_prefix(), settings.STATIC_URL, urloc)
def settings_value(name):
return getattr(settings, name, "")
def url(*args, **kwargs):
# strangely, Django's 'reverse' function
# takes a named parameter 'kwargs' instead
# of real kwargs.
return reverse(*args, kwargs=kwargs)
def env_get(name, default=None):
return os.environ.get(name, default)
def environment(**options):
env = Environment(**options)
env.globals.update({
'static': static,
'url': url,
'settings_value': settings_value,
'env': env_get,
})
return env
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