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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program 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 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
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
####################################
# Staticdirect infrastructure.
# Borrowed largely from cc.engine
# by Chris Webber & Creative Commons
#
# This needs documentation!
####################################
import logging
_log = logging.getLogger(__name__)
class StaticDirect(object):
"""
Direct to a static resource.
This StaticDirect class can take a series of "domains" to
staticdirect to. In general, you should supply a None domain, as
that's the "default" domain.
Things work like this:
>>> staticdirect = StaticDirect(
... {None: "/static/",
... "theme": "http://example.org/themestatic/"})
>>> staticdirect("css/monkeys.css")
"/static/css/monkeys.css"
>>> staticdirect("images/lollerskate.png", "theme")
"http://example.org/themestatic/images/lollerskate.png"
"""
def __init__(self, domains):
self.domains = dict(
[(key, value.rstrip('/'))
for key, value in domains.iteritems()])
self.cache = {}
def __call__(self, filepath, domain=None):
if domain in self.cache and filepath in self.cache[domain]:
return self.cache[domain][filepath]
static_direction = self.cache.setdefault(
domain, {})[filepath] = self.get(filepath, domain)
return static_direction
def get(self, filepath, domain=None):
return '%s/%s' % (
self.domains[domain], filepath.lstrip('/'))
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