zycandClaude Opus 4.8
8ba76e5bb7
- 资产 preview_url 从「逐图签发预签名 URL」改为虚拟主机式公读直链 (https://{bucket}.{host}/{key})。桶公读已验证免签可访问;直链稳定可被浏览器/CDN 缓存,而签名链每次都变、1h 过期反而打不到缓存。boto3 也移出序列化热路径。 - allNotifications 不再逐页翻全部(原 O(N) 随消息增长拖慢每次刷新),只取首页 100 条 (侧边栏徽标 unread_count + 团队动态仅展示最近 6 条已足够);「共 N」改用后端真实 count。 - perf-probe:page_size 由 API 级硬闸确定性守住后,浏览器端「资产翻页」降为提示 (翻 1~2 页是资产真超 200 的合法分页,仅 ≥3 页才疑似 page_size 失效)。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
from dataclasses import dataclass
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from typing import BinaryIO
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from urllib.parse import quote, urlparse
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import boto3
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from botocore.config import Config
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from django.conf import settings
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@dataclass(frozen=True)
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class StoredObject:
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bucket: str
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object_key: str
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content_type: str
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size_bytes: int
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class TosStorage:
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def __init__(self) -> None:
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tos = settings.TOS
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self.bucket = tos["bucket"]
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self.client = boto3.client(
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"s3",
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endpoint_url=tos["endpoint"],
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aws_access_key_id=tos["access_key_id"],
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aws_secret_access_key=tos["secret_access_key"],
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region_name="cn-shanghai",
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config=Config(s3={"addressing_style": "virtual"}),
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)
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def upload_fileobj(self, *, fileobj: BinaryIO, object_key: str, content_type: str) -> StoredObject:
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fileobj.seek(0, 2)
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size = fileobj.tell()
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fileobj.seek(0)
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self.client.upload_fileobj(
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fileobj,
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self.bucket,
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object_key,
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ExtraArgs={"ContentType": content_type},
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)
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return StoredObject(
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bucket=self.bucket,
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object_key=object_key,
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content_type=content_type,
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size_bytes=size,
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)
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def presigned_get_url(self, *, object_key: str, expires_in: int = 3600) -> str:
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return self.client.generate_presigned_url(
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"get_object",
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Params={"Bucket": self.bucket, "Key": object_key},
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ExpiresIn=expires_in,
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)
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def public_url(self, *, object_key: str, bucket: str | None = None) -> str:
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"""桶公读时的虚拟主机式直链:https://{bucket}.{host}/{key}。
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相比预签名 URL:不签名(省 boto3 客户端/签名开销)、且 URL 稳定可被浏览器/CDN 缓存
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(签名链每次都变、1h 过期,反而打不到缓存)。仅用于公开可读的预览图。"""
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host = urlparse(settings.TOS["endpoint"]).netloc
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return f"https://{bucket or self.bucket}.{host}/{quote(object_key, safe='/')}"
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