mirror of
https://github.com/nexus-stc/hyperboria
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dd23846059
- [nexus] Switch bot - [bot] Added extra receivers functionality GitOrigin-RevId: 68fc32d3e79ff411758f54f435fe8680fc42dead
86 lines
3.2 KiB
Python
86 lines
3.2 KiB
Python
from typing import (
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AsyncIterable,
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Callable,
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Iterable,
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Optional,
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)
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from aiokit import AioThing
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from library.logging import error_log
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from nexus.pylon.exceptions import (
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DownloadError,
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NotFoundError,
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)
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from nexus.pylon.proto.file_pb2 import FileResponse as FileResponsePb
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from nexus.pylon.sources import (
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BaseSource,
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LibgenDoiSource,
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LibgenMd5Source,
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LibraryLolSource,
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SciHubMksaTopSource,
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SciHubSeSource,
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)
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from nexus.pylon.sources.specific import get_specific_sources_for_doi
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class PylonClient(AioThing):
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def __init__(self, proxy: Optional[str] = None, resolve_proxy: Optional[str] = None):
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super().__init__()
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self.proxy = proxy
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self.resolve_proxy = resolve_proxy
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async def by_doi(
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self,
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doi: str,
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md5: Optional[str] = None,
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error_log_func: Callable = error_log,
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) -> AsyncIterable[FileResponsePb]:
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sources = []
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sources.extend(get_specific_sources_for_doi(doi, proxy=self.proxy, resolve_proxy=self.resolve_proxy))
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sources.extend([
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SciHubMksaTopSource(doi=doi, md5=md5, proxy=self.proxy, resolve_proxy=self.resolve_proxy),
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SciHubSeSource(doi=doi, md5=md5, proxy=self.proxy, resolve_proxy=self.resolve_proxy),
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LibgenDoiSource(doi=doi, md5=md5, proxy=self.proxy, resolve_proxy=self.resolve_proxy),
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])
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sources = filter(lambda x: x.is_enabled, sources)
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async for resp in self.download(sources=sources, error_log_func=error_log_func):
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yield resp
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async def by_md5(
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self,
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md5: str,
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error_log_func: Callable = error_log,
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) -> AsyncIterable[FileResponsePb]:
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sources = filter(lambda x: x.is_enabled, [
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LibraryLolSource(md5=md5, proxy=self.proxy, resolve_proxy=self.resolve_proxy),
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LibgenMd5Source(md5=md5, proxy=self.proxy, resolve_proxy=self.resolve_proxy),
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])
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async for resp in self.download(sources=sources, error_log_func=error_log_func):
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yield resp
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async def download_source(self, source, error_log_func: Callable = error_log) -> AsyncIterable[FileResponsePb]:
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yield FileResponsePb(status=FileResponsePb.Status.RESOLVING, source=source.base_url)
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async for prepared_file_request in source.resolve(error_log_func=error_log_func):
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try:
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async for resp in source.execute_prepared_file_request(prepared_file_request=prepared_file_request):
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yield resp
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return
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except DownloadError as e:
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error_log_func(e)
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continue
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raise DownloadError(error='not_found', source=source.__class__.__name__)
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async def download(self, sources: Iterable[BaseSource], error_log_func: Callable = error_log) -> AsyncIterable[FileResponsePb]:
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for source in sources:
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await source.start()
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try:
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async for resp in self.download_source(source, error_log_func=error_log_func):
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yield resp
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return
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except DownloadError as e:
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error_log_func(e)
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continue
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finally:
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await source.stop()
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raise NotFoundError()
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