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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 pkg_resources
import logging
_log = logging.getLogger(__name__)
class StaticDirect(object):
def __init__(self):
self.cache = {}
def __call__(self, filepath):
if filepath in self.cache:
return self.cache[filepath]
if not pkg_resources.resource_exists('mediagoblin',
'static' + filepath):
_log.info("StaticDirect resource %r not found locally",
filepath)
static_direction = self.cache[filepath] = self.get(filepath)
return static_direction
def get(self, filepath):
# should be implemented by the individual staticdirector
pass
class RemoteStaticDirect(StaticDirect):
def __init__(self, remotepath):
StaticDirect.__init__(self)
self.remotepath = remotepath.rstrip('/')
def get(self, filepath):
return '%s/%s' % (
self.remotepath, filepath.lstrip('/'))
class MultiRemoteStaticDirect(StaticDirect):
"""
For whene separate sections of the static data is served under
separate urls.
"""
def __init__(self, remotepaths):
StaticDirect.__init__(self)
self.remotepaths = remotepaths
def get(self, filepath):
section, rest = filepath.strip('/').split('/', 1)
return '%s/%s' % (
self.remotepaths[section].rstrip('/'),
rest.lstrip('/'))
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