mirror of
https://github.com/JockeTF/fimfarchive.git
synced 2025-04-01 08:45:29 +02:00
85 lines
2.3 KiB
Python
85 lines
2.3 KiB
Python
"""
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Fetch task.
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"""
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#
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# Fimfarchive, preserves stories from Fimfiction.
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# Copyright (C) 2019 Joakim Soderlund
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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from typing import Iterable
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from fimfarchive.converters import (
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FpubEpubConverter, JsonFpubConverter, WebLocalConverter
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)
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from fimfarchive.fetchers import Fetcher
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from fimfarchive.writers import Writer
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from fimfarchive.signals import Signal, SignalSender
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__all__ = (
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'FetchTask',
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)
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class FetchTask(SignalSender):
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"""
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Fetches a story and writes it to the current directory.
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"""
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on_attempt = Signal('key')
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on_success = Signal('key', 'story')
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on_failure = Signal('key', 'error')
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def __init__(
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self,
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keys: Iterable[int],
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fetcher: Fetcher,
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writer: Writer,
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) -> None:
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"""
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Constructor.
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Args:
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keys: Stories to fetch.
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fetcher: Story source.
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writer: Story target.
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"""
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super().__init__()
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self.fetcher = fetcher
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self.writer = writer
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self.to_fpub = JsonFpubConverter()
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self.to_epub = FpubEpubConverter()
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self.to_imgl = WebLocalConverter()
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self.keys = sorted(set(keys))
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def run(self) -> None:
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"""
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Runs the task.
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"""
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for key in sorted(set(self.keys)):
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self.on_attempt(key)
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try:
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json = self.fetcher.fetch(key)
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fpub = self.to_fpub(json)
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ipub = self.to_imgl(fpub)
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epub = self.to_epub(ipub)
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self.writer.write(epub)
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self.on_success(key, epub)
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except Exception as e:
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self.on_failure(key, e)
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