| 1 | # GNU MediaGoblin -- federated, autonomous media hosting |
| 2 | # Copyright (C) 2011 Free Software Foundation, Inc |
| 3 | # |
| 4 | # This program is free software: you can redistribute it and/or modify |
| 5 | # it under the terms of the GNU Affero General Public License as published by |
| 6 | # the Free Software Foundation, either version 3 of the License, or |
| 7 | # (at your option) any later version. |
| 8 | # |
| 9 | # This program is distributed in the hope that it will be useful, |
| 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | # GNU Affero General Public License for more details. |
| 13 | # |
| 14 | # You should have received a copy of the GNU Affero General Public License |
| 15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | |
| 17 | import pkg_resources |
| 18 | import urlparse |
| 19 | |
| 20 | #################################### |
| 21 | # Staticdirect infrastructure. |
| 22 | # Borrowed largely from cc.engine |
| 23 | # by Chris Webber & Creative Commons |
| 24 | # |
| 25 | # This needs documentation! |
| 26 | #################################### |
| 27 | |
| 28 | import pkg_resources |
| 29 | import urlparse |
| 30 | |
| 31 | class StaticDirect(object): |
| 32 | def __init__(self): |
| 33 | self.cache = {} |
| 34 | |
| 35 | def __call__(self, filepath): |
| 36 | if self.cache.has_key(filepath): |
| 37 | return self.cache[filepath] |
| 38 | |
| 39 | static_direction = self.cache[filepath] = self.get(filepath) |
| 40 | return static_direction |
| 41 | |
| 42 | |
| 43 | def get(self, filepath): |
| 44 | # should be implemented by the individual staticdirector |
| 45 | pass |
| 46 | |
| 47 | |
| 48 | class RemoteStaticDirect(StaticDirect): |
| 49 | def __init__(self, remotepath): |
| 50 | StaticDirect.__init__(self) |
| 51 | self.remotepath = remotepath.rstrip('/') |
| 52 | |
| 53 | def get(self, filepath): |
| 54 | return '%s/%s' % ( |
| 55 | self.remotepath, filepath.lstrip('/')) |
| 56 | |
| 57 | |
| 58 | class MultiRemoteStaticDirect(StaticDirect): |
| 59 | """ |
| 60 | For whene separate sections of the static data is served under |
| 61 | separate urls. |
| 62 | """ |
| 63 | def __init__(self, remotepaths): |
| 64 | StaticDirect.__init__(self) |
| 65 | self.remotepaths = remotepaths |
| 66 | |
| 67 | def get(self, filepath): |
| 68 | section, rest = filepath.strip('/').split('/', 1) |
| 69 | |
| 70 | return '%s/%s' % ( |
| 71 | self.remotepaths[section].rstrip('/'), |
| 72 | rest.lstrip('/')) |