mirror of
https://github.com/jxxghp/MoviePilot.git
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127 lines
3.8 KiB
Python
127 lines
3.8 KiB
Python
"""
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手工订阅搜索应用用例。
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"""
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from collections.abc import Awaitable, Callable
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from dataclasses import dataclass
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from typing import Optional
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from app.application.subscription.contract import (
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SubscribeDeletionCandidate,
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SubscriptionStagingPort,
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)
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@dataclass(frozen=True, slots=True)
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class SubscribeSearchActor:
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"""
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执行手工订阅搜索的用户身份。
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:param username: 发起操作的已认证本地用户名
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:param is_superuser: 操作人是否具有超级管理员权限
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"""
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username: str
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is_superuser: bool
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@dataclass(frozen=True, slots=True)
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class SubscriptionSearchSubmission:
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"""
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一次手工搜索请求的入队结果。
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:param batch_ids: 本次手工搜索涉及的活动批次标识
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:param target_count: 本次目标订阅总数
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:param queued_count: 本次新进入队列的任务数
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:param ongoing_count: 已在活动队列中而未重复提交的任务数
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:param single: 是否仅针对一个订阅发起搜索
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"""
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batch_ids: tuple[str, ...]
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target_count: int
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queued_count: int
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ongoing_count: int
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single: bool
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@property
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def batch_id(self) -> Optional[str]:
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"""
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返回最适合前端立即跟踪的批次编号。
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"""
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return self.batch_ids[0] if self.batch_ids else None
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SubscribeSearchSubmitter = Callable[
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[tuple[int, ...], bool],
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Awaitable[SubscriptionSearchSubmission],
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]
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class SearchSubscriptionsCommand:
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"""
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按用户权限读取目标，并把手工搜索轻量提交到持久队列。
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"""
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def __init__(
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self,
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repository: SubscriptionStagingPort,
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submit_search: SubscribeSearchSubmitter,
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) -> None:
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"""
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注入订阅读取端口和持久队列提交端口。
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"""
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self._repository = repository
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self._submit_search = submit_search
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async def execute(
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self,
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actor: SubscribeSearchActor,
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subscribe_id: int | None = None,
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mtype: Optional[str] = None,
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) -> Optional[SubscriptionSearchSubmission]:
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"""
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提交单条或指定媒体类型的可搜索订阅，目标不可访问时返回空。
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"""
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if subscribe_id is not None:
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candidate = await self._repository.get_candidate(subscribe_id)
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if not self._can_access(candidate, actor) or (
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mtype is not None
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and (candidate is None or candidate.event_payload.get("type") != mtype)
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):
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return None
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return await self._submit_search((subscribe_id,), True)
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search_username = None if actor.is_superuser else actor.username
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if mtype is None:
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# 保留旧调用形态，兼容仍只实现全量查询参数的外部端口测试替身。
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subscribe_ids = await self._repository.list_search_ids(search_username, "R")
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else:
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subscribe_ids = await self._repository.list_search_ids(
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search_username,
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"R",
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mtype=mtype,
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)
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if not subscribe_ids:
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return SubscriptionSearchSubmission(
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batch_ids=(),
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target_count=0,
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queued_count=0,
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ongoing_count=0,
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single=False,
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)
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return await self._submit_search(tuple(subscribe_ids), False)
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@staticmethod
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def _can_access(
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candidate: SubscribeDeletionCandidate | None,
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actor: SubscribeSearchActor,
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) -> bool:
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"""
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沿用订阅读取接口的超级用户和归属用户权限语义。
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"""
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if candidate is None:
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return False
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if actor.is_superuser:
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return True
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return bool(candidate.username) and candidate.username == actor.username
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