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76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from .base_resource import BaseMediaResource
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from twisted.web.server import NOT_DONE_YET
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from twisted.internet import defer
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import logging
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logger = logging.getLogger(__name__)
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class DownloadResource(BaseMediaResource):
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def render_GET(self, request):
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self._async_render_GET(request)
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return NOT_DONE_YET
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@BaseMediaResource.catch_errors
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@defer.inlineCallbacks
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def _async_render_GET(self, request):
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try:
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server_name, media_id = request.postpath
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except:
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self._respond_404(request)
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return
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if server_name == self.server_name:
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yield self._respond_local_file(request, media_id)
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else:
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yield self._respond_remote_file(request, server_name, media_id)
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@defer.inlineCallbacks
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def _respond_local_file(self, request, media_id):
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media_info = yield self.store.get_local_media(media_id)
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if not media_info:
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self._respond_404()
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return
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media_type = media_info["media_type"]
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file_path = self.filepaths.local_media_filepath(media_id)
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yield self._respond_with_file(request, media_type, file_path)
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@defer.inlineCallbacks
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def _respond_remote_file(self, request, server_name, media_id):
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media_info = yield self.store.get_cached_remote_media(
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server_name, media_id
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)
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if not media_info:
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media_info = yield self._download_remote_file(
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server_name, media_id
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)
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media_type = media_info["media_type"]
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filesystem_id = media_info["filesystem_id"]
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file_path = self.filepaths.remote_media_filepath(
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server_name, filesystem_id
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)
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yield self._respond_with_file(request, media_type, file_path)
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