kopia lustrzana https://github.com/mediacms-io/mediacms
97 wiersze
2.8 KiB
Python
97 wiersze
2.8 KiB
Python
from os.path import join
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from io import StringIO
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import shutil
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from django.conf import settings
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from . import utils
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class BaseFineUploader(object):
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def __init__(self, data, *args, **kwargs):
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self.data = data
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self.total_filesize = data.get("qqtotalfilesize")
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self.filename = data.get("qqfilename")
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self.uuid = data.get("qquuid")
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self.file = data.get("qqfile")
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self.storage_class = settings.FILE_STORAGE
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self.real_path = None
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@property
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def finished(self):
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return self.real_path is not None
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@property
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def file_path(self):
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return join(settings.UPLOAD_DIR, self.uuid)
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@property
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def _full_file_path(self):
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return join(self.file_path, self.filename)
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@property
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def storage(self):
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file_storage = utils.import_class(self.storage_class)
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return file_storage()
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@property
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def url(self):
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if not self.finished:
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return None
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return self.storage.url(self.real_path)
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class ChunkedFineUploader(BaseFineUploader):
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concurrent = True
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def __init__(self, data, concurrent=True, *args, **kwargs):
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super(ChunkedFineUploader, self).__init__(data, *args, **kwargs)
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self.concurrent = concurrent
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self.total_parts = data.get("qqtotalparts")
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if not isinstance(self.total_parts, int):
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self.total_parts = 1
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self.part_index = data.get("qqpartindex")
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@property
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def chunks_path(self):
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return join(settings.CHUNKS_DIR, self.uuid)
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@property
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def _abs_chunks_path(self):
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return join(settings.MEDIA_ROOT, self.chunks_path)
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@property
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def chunk_file(self):
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return join(self.chunks_path, str(self.part_index))
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@property
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def chunked(self):
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return self.total_parts > 1
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@property
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def is_time_to_combine_chunks(self):
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return self.total_parts - 1 == self.part_index
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def combine_chunks(self):
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# implement the same behaviour.
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self.real_path = self.storage.save(self._full_file_path, StringIO())
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with self.storage.open(self.real_path, "wb") as final_file:
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for i in range(self.total_parts):
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part = join(self.chunks_path, str(i))
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with self.storage.open(part, "rb") as source:
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final_file.write(source.read())
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shutil.rmtree(self._abs_chunks_path)
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def _save_chunk(self):
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return self.storage.save(self.chunk_file, self.file)
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def save(self):
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if self.chunked:
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chunk = self._save_chunk()
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if not self.concurrent and self.is_time_to_combine_chunks:
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self.combine_chunks()
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return self.real_path
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return chunk
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else:
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self.real_path = self.storage.save(self._full_file_path, self.file)
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return self.real_path
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