P1: 功能修复
- v2 三处 self.format_file_size -> format_file_size(3 个端点不再必崩) - requirements 加 bcrypt、移除未使用的 aiohttp - verify_user 改用 bcrypt.checkpw(DB basic 登录恢复);SHA256 回退改自描述 PBKDF2,去掉明文接受 - config.py token 模式只在缺失时生成(不再每次 update 失效) - docker/npm/go/apt/yum 镜像补 cache_enabled/cache_ttl 初始化(不再必 500) - docker 镜像兼容 upstream_url 配置键 - 定时同步链路: 回调委托 sync_starter 并注入 _sync_manager;cron 逗号列表修复;星期偏移修复 - v2 同步方法与 v1 签名兼容;MirrorSyncManager 补 get_source_status/stop_all_tasks_for_source
This commit is contained in:
HYC Fixer
+436
-432
@@ -1,432 +1,436 @@
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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APT镜像代理处理器
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支持Debian/Ubuntu软件源
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"""
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import os
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import json
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import time
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import gzip
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import re
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import urllib.request
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from typing import Dict, List, Optional, Tuple
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from datetime import datetime
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class APTMirror:
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"""APT镜像代理"""
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def __init__(self, config: dict):
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self.config = config
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# 配置 - 使用 storage_dir（基于 base_dir）
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self.mirrors = config.get('mirrors', [
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'http://archive.ubuntu.com/ubuntu',
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'http://security.ubuntu.com/ubuntu'
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])
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self.storage_dir = config.get('storage_dir', './downloads/apt')
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self.base_dir = config.get('base_dir', './downloads')
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self.default_suite = config.get('suite', 'jammy')
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self.default_components = config.get('components', ['main', 'restricted', 'universe', 'multiverse'])
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self.default_arch = config.get('arch', 'amd64')
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# 确保存储目录存在
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os.makedirs(self.storage_dir, exist_ok=True)
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def handle_request(self, handler, path: str) -> bool:
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"""
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处理APT请求
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路径格式: /ubuntu/dists/jammy/main/binary-amd64/Packages.gz
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"""
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try:
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# 解析路径
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parts = path.strip('/').split('/')
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if len(parts) < 5:
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# 返回镜像列表或帮助信息
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return self._handle_index(handler)
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# 提取组件
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distro = parts[0] # ubuntu, debian 等
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dist_type = parts[1] # dists
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suite = parts[2] # jammy, focal 等
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component = parts[3] # main, updates 等
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rest = '/'.join(parts[4:])
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# 确定请求类型
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if rest.endswith('Packages.gz'):
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return self._handle_packages(handler, distro, suite, component, rest)
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elif rest.endswith('Packages'):
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return self._handle_packages_uncompressed(handler, distro, suite, component, rest)
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elif rest.endswith('Release'):
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return self._handle_release(handler, distro, suite, component, rest)
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elif rest.endswith('Release.gpg'):
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return self._handle_release_gpg(handler, distro, suite, component, rest)
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elif rest.endswith('InRelease'):
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return self._handle_inrelease(handler, distro, suite, component, rest)
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else:
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# 其他文件（源码包等）
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return self._handle_file(handler, distro, suite, rest)
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except Exception as e:
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handler.send_error(500, str(e))
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return False
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def _handle_index(self, handler) -> bool:
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"""处理索引请求"""
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handler.send_json_response({
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'mirrors': self.mirrors,
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'default_suite': self.default_suite,
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'default_components': self.default_components,
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'cache_stats': self.get_cache_stats()
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})
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return True
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def _handle_packages(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
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"""处理Packages.gz请求"""
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cache_key = f"packages:{distro}:{suite}:{component}:{self.default_arch}"
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# 检查架构
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if 'binary-' in path:
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arch = path.split('binary-')[1].split('/')[0]
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else:
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arch = self.default_arch
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cache_key = f"packages:{distro}:{suite}:{component}:{arch}"
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cached = self._get_cache(cache_key)
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if cached:
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handler.send_response(200)
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handler.send_header('Content-Type', 'application/x-gzip')
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handler.send_header('Content-Length', str(len(cached)))
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handler.end_headers()
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handler.wfile.write(cached)
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return True
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# 从上游获取
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for mirror in self.mirrors:
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url = f"{mirror}/{path}"
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try:
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data = self._fetch(url)
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if data:
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# 缓存
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if self.cache_enabled:
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self._set_cache(cache_key, data)
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handler.send_response(200)
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handler.send_header('Content-Type', 'application/x-gzip')
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handler.send_header('Content-Length', str(len(data)))
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handler.end_headers()
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handler.wfile.write(data)
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return True
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except Exception as e:
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continue
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handler.send_error(502, "Failed to fetch from all mirrors")
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return False
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def _handle_packages_uncompressed(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
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"""处理未压缩的Packages文件"""
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# 先获取gz版本
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gz_path = path + '.gz'
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for mirror in self.mirrors:
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url = f"{mirror}/{gz_path}"
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try:
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data = self._fetch(url)
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if data:
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# 解压
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packages_data = gzip.decompress(data)
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handler.send_response(200)
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handler.send_header('Content-Type', 'text/plain')
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handler.send_header('Content-Length', str(len(packages_data)))
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handler.end_headers()
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handler.wfile.write(packages_data)
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return True
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except Exception:
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continue
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handler.send_error(502, "Failed to fetch packages")
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return False
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def _handle_release(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
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"""处理Release文件"""
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cache_key = f"release:{distro}:{suite}"
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cached = self._get_cache(cache_key)
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if cached:
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handler.send_response(200)
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handler.send_header('Content-Type', 'text/plain')
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handler.send_header('Content-Length', str(len(cached)))
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handler.end_headers()
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handler.wfile.write(cached)
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return True
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# 获取Release文件
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release_path = f"/{distro}/dists/{suite}/Release"
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for mirror in self.mirrors:
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url = mirror + release_path
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try:
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data = self._fetch(url)
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if data:
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if self.cache_enabled:
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self._set_cache(cache_key, data)
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handler.send_response(200)
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handler.send_header('Content-Type', 'text/plain')
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handler.send_header('Content-Length', str(len(data)))
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handler.end_headers()
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handler.wfile.write(data)
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return True
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except Exception:
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continue
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handler.send_error(502, "Failed to fetch Release")
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return False
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def _handle_release_gpg(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
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"""处理Release.gpg文件"""
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cache_key = f"release_gpg:{distro}:{suite}"
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cached = self._get_cache(cache_key)
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if cached:
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handler.send_response(200)
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handler.send_header('Content-Type', 'application/pgp-signature')
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handler.end_headers()
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handler.wfile.write(cached)
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return True
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# 尝试获取
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gpg_path = f"/{distro}/dists/{suite}/Release.gpg"
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for mirror in self.mirrors:
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url = mirror + gpg_path
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try:
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data = self._fetch(url)
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if data:
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if self.cache_enabled:
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self._set_cache(cache_key, data)
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handler.send_response(200)
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handler.send_header('Content-Type', 'application/pgp-signature')
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handler.end_headers()
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handler.wfile.write(data)
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return True
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except Exception:
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continue
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handler.send_error(404, "Release.gpg not found")
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return False
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def _handle_inrelease(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
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"""处理InRelease文件 - 获取或生成签名后的Release信息"""
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cache_key = f"inrelease:{distro}:{suite}"
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cached = self._get_cache(cache_key)
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if cached:
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handler.send_response(200)
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handler.send_header('Content-Type', 'text/plain')
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handler.send_header('Content-Length', str(len(cached)))
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handler.end_headers()
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handler.wfile.write(cached)
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return True
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# 尝试从上游获取 InRelease
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inrelease_path = f"/{distro}/dists/{suite}/InRelease"
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for mirror in self.mirrors:
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url = mirror + inrelease_path
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try:
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data = self._fetch(url)
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if data:
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if self.cache_enabled:
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self._set_cache(cache_key, data)
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handler.send_response(200)
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handler.send_header('Content-Type', 'text/plain')
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handler.send_header('Content-Length', str(len(data)))
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handler.end_headers()
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handler.wfile.write(data)
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return True
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except Exception:
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continue
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# 如果没有 InRelease，尝试生成一个（基于 Release + 方括号注释）
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# 注意：这不是有效的签名，但可以用于不验证签名的客户端
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release_cache_key = f"release:{distro}:{suite}"
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release_data = self._get_cache(release_cache_key)
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if not release_data:
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# 尝试获取 Release
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release_path = f"/{distro}/dists/{suite}/Release"
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for mirror in self.mirrors:
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url = mirror + release_path
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try:
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release_data = self._fetch(url)
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if release_data:
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break
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except Exception:
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continue
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if release_data:
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# 添加注释说明这是未签名的 Release
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comment = f"# Note: This is a synthesized InRelease (original InRelease not available)\n"
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inrelease_data = comment + release_data.decode('utf-8', errors='replace')
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if self.cache_enabled:
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self._set_cache(cache_key, inrelease_data.encode())
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handler.send_response(200)
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handler.send_header('Content-Type', 'text/plain')
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handler.send_header('Content-Length', str(len(inrelease_data)))
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handler.end_headers()
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handler.wfile.write(inrelease_data.encode())
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return True
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handler.send_error(502, "Failed to fetch InRelease")
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return False
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def _handle_file(self, handler, distro: str, suite: str, path: str) -> bool:
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"""处理普通文件请求（如源码包）"""
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cache_key = f"file:{distro}:{path.replace('/', ':')}"
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cached = self._get_cache(cache_key)
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if cached:
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handler.send_response(200)
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handler.send_header('Content-Type', 'application/octet-stream')
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handler.send_header('Content-Length', str(len(cached)))
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handler.end_headers()
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handler.wfile.write(cached)
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return True
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# 从上游获取
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for mirror in self.mirrors:
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url = f"{mirror}/{path}"
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try:
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data = self._fetch(url)
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if data:
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if self.cache_enabled:
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self._set_cache(cache_key, data)
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handler.send_response(200)
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handler.send_header('Content-Type', 'application/octet-stream')
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handler.send_header('Content-Length', str(len(data)))
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handler.end_headers()
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handler.wfile.write(data)
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return True
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except Exception:
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continue
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handler.send_error(404, "File not found")
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return False
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def _fetch(self, url: str) -> Optional[bytes]:
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"""从URL获取数据"""
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try:
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req = urllib.request.Request(url)
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req.add_header('User-Agent', 'APT-Mirror/1.0')
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with urllib.request.urlopen(req, timeout=30) as response:
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return response.read()
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except Exception:
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return None
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def _get_cache(self, cache_key: str) -> Optional[bytes]:
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"""获取缓存"""
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if not self.cache_enabled:
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return None
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cache_path = self._get_cache_path(cache_key)
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meta_path = cache_path + '.meta'
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if not os.path.exists(cache_path):
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return None
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# 检查过期
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if os.path.exists(meta_path):
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try:
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with open(meta_path, 'r') as f:
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meta = json.load(f)
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if time.time() > meta.get('expires', 0):
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return None
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except Exception:
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pass
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try:
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with open(cache_path, 'rb') as f:
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return f.read()
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except Exception:
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return None
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def _set_cache(self, cache_key: str, data: bytes):
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"""设置缓存"""
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cache_path = self._get_cache_path(cache_key)
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meta_path = cache_path + '.meta'
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os.makedirs(os.path.dirname(cache_path), exist_ok=True)
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|
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try:
|
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with open(cache_path, 'wb') as f:
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f.write(data)
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meta = {
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'cached_at': time.time(),
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'expires': time.time() + self.cache_ttl,
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'size': len(data)
|
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}
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with open(meta_path, 'w') as f:
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json.dump(meta, f)
|
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|
||||
except Exception as e:
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print(f"APT缓存写入失败: {e}")
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def _get_cache_path(self, cache_key: str) -> str:
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"""获取缓存路径"""
|
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subdir = cache_key[:2]
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return os.path.join(self.storage_dir, subdir, cache_key)
|
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|
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def get_cache_stats(self) -> dict:
|
||||
"""获取缓存统计"""
|
||||
if not os.path.exists(self.storage_dir):
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return {'files': 0, 'size': 0}
|
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|
||||
total_size = 0
|
||||
file_count = 0
|
||||
|
||||
for root, dirs, files in os.walk(self.storage_dir):
|
||||
for f in files:
|
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if not f.endswith('.meta'):
|
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file_count += 1
|
||||
total_size += os.path.getsize(os.path.join(root, f))
|
||||
|
||||
return {
|
||||
'files': file_count,
|
||||
'size': total_size,
|
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'size_formatted': self._format_size(total_size)
|
||||
}
|
||||
|
||||
def _format_size(self, size_bytes: int) -> str:
|
||||
"""格式化文件大小"""
|
||||
if size_bytes == 0:
|
||||
return "0 B"
|
||||
|
||||
units = ["B", "KB", "MB", "GB"]
|
||||
i = 0
|
||||
while size_bytes >= 1024 and i < len(units) - 1:
|
||||
size_bytes /= 1024.0
|
||||
i += 1
|
||||
|
||||
return f"{size_bytes:.2f} {units[i]}"
|
||||
#!/usr/bin/env python3
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
"""
|
||||
APT镜像代理处理器
|
||||
支持Debian/Ubuntu软件源
|
||||
"""
|
||||
|
||||
import os
|
||||
import json
|
||||
import time
|
||||
import gzip
|
||||
import re
|
||||
import urllib.request
|
||||
from typing import Dict, List, Optional, Tuple
|
||||
from datetime import datetime
|
||||
|
||||
|
||||
class APTMirror:
|
||||
"""APT镜像代理"""
|
||||
|
||||
def __init__(self, config: dict):
|
||||
self.config = config
|
||||
|
||||
# 配置 - 使用 storage_dir（基于 base_dir）
|
||||
self.mirrors = config.get('mirrors', [
|
||||
'http://archive.ubuntu.com/ubuntu',
|
||||
'http://security.ubuntu.com/ubuntu'
|
||||
])
|
||||
self.storage_dir = config.get('storage_dir', './downloads/apt')
|
||||
self.base_dir = config.get('base_dir', './downloads')
|
||||
self.default_suite = config.get('suite', 'jammy')
|
||||
self.default_components = config.get('components', ['main', 'restricted', 'universe', 'multiverse'])
|
||||
self.default_arch = config.get('arch', 'amd64')
|
||||
|
||||
# 缓存配置（缺失时默认启用，避免 AttributeError）
|
||||
self.cache_enabled = config.get('cache_enabled', True)
|
||||
self.cache_ttl = config.get('cache_ttl', 3600)
|
||||
|
||||
# 确保存储目录存在
|
||||
os.makedirs(self.storage_dir, exist_ok=True)
|
||||
|
||||
def handle_request(self, handler, path: str) -> bool:
|
||||
"""
|
||||
处理APT请求
|
||||
路径格式: /ubuntu/dists/jammy/main/binary-amd64/Packages.gz
|
||||
"""
|
||||
try:
|
||||
# 解析路径
|
||||
parts = path.strip('/').split('/')
|
||||
|
||||
if len(parts) < 5:
|
||||
# 返回镜像列表或帮助信息
|
||||
return self._handle_index(handler)
|
||||
|
||||
# 提取组件
|
||||
distro = parts[0] # ubuntu, debian 等
|
||||
dist_type = parts[1] # dists
|
||||
suite = parts[2] # jammy, focal 等
|
||||
component = parts[3] # main, updates 等
|
||||
rest = '/'.join(parts[4:])
|
||||
|
||||
# 确定请求类型
|
||||
if rest.endswith('Packages.gz'):
|
||||
return self._handle_packages(handler, distro, suite, component, rest)
|
||||
elif rest.endswith('Packages'):
|
||||
return self._handle_packages_uncompressed(handler, distro, suite, component, rest)
|
||||
elif rest.endswith('Release'):
|
||||
return self._handle_release(handler, distro, suite, component, rest)
|
||||
elif rest.endswith('Release.gpg'):
|
||||
return self._handle_release_gpg(handler, distro, suite, component, rest)
|
||||
elif rest.endswith('InRelease'):
|
||||
return self._handle_inrelease(handler, distro, suite, component, rest)
|
||||
else:
|
||||
# 其他文件（源码包等）
|
||||
return self._handle_file(handler, distro, suite, rest)
|
||||
|
||||
except Exception as e:
|
||||
handler.send_error(500, str(e))
|
||||
return False
|
||||
|
||||
def _handle_index(self, handler) -> bool:
|
||||
"""处理索引请求"""
|
||||
handler.send_json_response({
|
||||
'mirrors': self.mirrors,
|
||||
'default_suite': self.default_suite,
|
||||
'default_components': self.default_components,
|
||||
'cache_stats': self.get_cache_stats()
|
||||
})
|
||||
return True
|
||||
|
||||
def _handle_packages(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
|
||||
"""处理Packages.gz请求"""
|
||||
cache_key = f"packages:{distro}:{suite}:{component}:{self.default_arch}"
|
||||
|
||||
# 检查架构
|
||||
if 'binary-' in path:
|
||||
arch = path.split('binary-')[1].split('/')[0]
|
||||
else:
|
||||
arch = self.default_arch
|
||||
|
||||
cache_key = f"packages:{distro}:{suite}:{component}:{arch}"
|
||||
|
||||
cached = self._get_cache(cache_key)
|
||||
if cached:
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'application/x-gzip')
|
||||
handler.send_header('Content-Length', str(len(cached)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(cached)
|
||||
return True
|
||||
|
||||
# 从上游获取
|
||||
for mirror in self.mirrors:
|
||||
url = f"{mirror}/{path}"
|
||||
|
||||
try:
|
||||
data = self._fetch(url)
|
||||
if data:
|
||||
# 缓存
|
||||
if self.cache_enabled:
|
||||
self._set_cache(cache_key, data)
|
||||
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'application/x-gzip')
|
||||
handler.send_header('Content-Length', str(len(data)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(data)
|
||||
return True
|
||||
|
||||
except Exception as e:
|
||||
continue
|
||||
|
||||
handler.send_error(502, "Failed to fetch from all mirrors")
|
||||
return False
|
||||
|
||||
def _handle_packages_uncompressed(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
|
||||
"""处理未压缩的Packages文件"""
|
||||
# 先获取gz版本
|
||||
gz_path = path + '.gz'
|
||||
|
||||
for mirror in self.mirrors:
|
||||
url = f"{mirror}/{gz_path}"
|
||||
try:
|
||||
data = self._fetch(url)
|
||||
if data:
|
||||
# 解压
|
||||
packages_data = gzip.decompress(data)
|
||||
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'text/plain')
|
||||
handler.send_header('Content-Length', str(len(packages_data)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(packages_data)
|
||||
return True
|
||||
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
handler.send_error(502, "Failed to fetch packages")
|
||||
return False
|
||||
|
||||
def _handle_release(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
|
||||
"""处理Release文件"""
|
||||
cache_key = f"release:{distro}:{suite}"
|
||||
|
||||
cached = self._get_cache(cache_key)
|
||||
if cached:
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'text/plain')
|
||||
handler.send_header('Content-Length', str(len(cached)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(cached)
|
||||
return True
|
||||
|
||||
# 获取Release文件
|
||||
release_path = f"/{distro}/dists/{suite}/Release"
|
||||
|
||||
for mirror in self.mirrors:
|
||||
url = mirror + release_path
|
||||
try:
|
||||
data = self._fetch(url)
|
||||
if data:
|
||||
if self.cache_enabled:
|
||||
self._set_cache(cache_key, data)
|
||||
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'text/plain')
|
||||
handler.send_header('Content-Length', str(len(data)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(data)
|
||||
return True
|
||||
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
handler.send_error(502, "Failed to fetch Release")
|
||||
return False
|
||||
|
||||
def _handle_release_gpg(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
|
||||
"""处理Release.gpg文件"""
|
||||
cache_key = f"release_gpg:{distro}:{suite}"
|
||||
|
||||
cached = self._get_cache(cache_key)
|
||||
if cached:
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'application/pgp-signature')
|
||||
handler.end_headers()
|
||||
handler.wfile.write(cached)
|
||||
return True
|
||||
|
||||
# 尝试获取
|
||||
gpg_path = f"/{distro}/dists/{suite}/Release.gpg"
|
||||
|
||||
for mirror in self.mirrors:
|
||||
url = mirror + gpg_path
|
||||
try:
|
||||
data = self._fetch(url)
|
||||
if data:
|
||||
if self.cache_enabled:
|
||||
self._set_cache(cache_key, data)
|
||||
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'application/pgp-signature')
|
||||
handler.end_headers()
|
||||
handler.wfile.write(data)
|
||||
return True
|
||||
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
handler.send_error(404, "Release.gpg not found")
|
||||
return False
|
||||
|
||||
def _handle_inrelease(self, handler, distro: str, suite: str, component: str, path: str) -> bool:
|
||||
"""处理InRelease文件 - 获取或生成签名后的Release信息"""
|
||||
cache_key = f"inrelease:{distro}:{suite}"
|
||||
|
||||
cached = self._get_cache(cache_key)
|
||||
if cached:
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'text/plain')
|
||||
handler.send_header('Content-Length', str(len(cached)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(cached)
|
||||
return True
|
||||
|
||||
# 尝试从上游获取 InRelease
|
||||
inrelease_path = f"/{distro}/dists/{suite}/InRelease"
|
||||
|
||||
for mirror in self.mirrors:
|
||||
url = mirror + inrelease_path
|
||||
try:
|
||||
data = self._fetch(url)
|
||||
if data:
|
||||
if self.cache_enabled:
|
||||
self._set_cache(cache_key, data)
|
||||
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'text/plain')
|
||||
handler.send_header('Content-Length', str(len(data)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(data)
|
||||
return True
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
# 如果没有 InRelease，尝试生成一个（基于 Release + 方括号注释）
|
||||
# 注意：这不是有效的签名，但可以用于不验证签名的客户端
|
||||
release_cache_key = f"release:{distro}:{suite}"
|
||||
release_data = self._get_cache(release_cache_key)
|
||||
|
||||
if not release_data:
|
||||
# 尝试获取 Release
|
||||
release_path = f"/{distro}/dists/{suite}/Release"
|
||||
for mirror in self.mirrors:
|
||||
url = mirror + release_path
|
||||
try:
|
||||
release_data = self._fetch(url)
|
||||
if release_data:
|
||||
break
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
if release_data:
|
||||
# 添加注释说明这是未签名的 Release
|
||||
comment = f"# Note: This is a synthesized InRelease (original InRelease not available)\n"
|
||||
inrelease_data = comment + release_data.decode('utf-8', errors='replace')
|
||||
|
||||
if self.cache_enabled:
|
||||
self._set_cache(cache_key, inrelease_data.encode())
|
||||
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'text/plain')
|
||||
handler.send_header('Content-Length', str(len(inrelease_data)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(inrelease_data.encode())
|
||||
return True
|
||||
|
||||
handler.send_error(502, "Failed to fetch InRelease")
|
||||
return False
|
||||
|
||||
def _handle_file(self, handler, distro: str, suite: str, path: str) -> bool:
|
||||
"""处理普通文件请求（如源码包）"""
|
||||
cache_key = f"file:{distro}:{path.replace('/', ':')}"
|
||||
|
||||
cached = self._get_cache(cache_key)
|
||||
if cached:
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'application/octet-stream')
|
||||
handler.send_header('Content-Length', str(len(cached)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(cached)
|
||||
return True
|
||||
|
||||
# 从上游获取
|
||||
for mirror in self.mirrors:
|
||||
url = f"{mirror}/{path}"
|
||||
try:
|
||||
data = self._fetch(url)
|
||||
if data:
|
||||
if self.cache_enabled:
|
||||
self._set_cache(cache_key, data)
|
||||
|
||||
handler.send_response(200)
|
||||
handler.send_header('Content-Type', 'application/octet-stream')
|
||||
handler.send_header('Content-Length', str(len(data)))
|
||||
handler.end_headers()
|
||||
handler.wfile.write(data)
|
||||
return True
|
||||
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
handler.send_error(404, "File not found")
|
||||
return False
|
||||
|
||||
def _fetch(self, url: str) -> Optional[bytes]:
|
||||
"""从URL获取数据"""
|
||||
try:
|
||||
req = urllib.request.Request(url)
|
||||
req.add_header('User-Agent', 'APT-Mirror/1.0')
|
||||
|
||||
with urllib.request.urlopen(req, timeout=30) as response:
|
||||
return response.read()
|
||||
|
||||
except Exception:
|
||||
return None
|
||||
|
||||
def _get_cache(self, cache_key: str) -> Optional[bytes]:
|
||||
"""获取缓存"""
|
||||
if not self.cache_enabled:
|
||||
return None
|
||||
|
||||
cache_path = self._get_cache_path(cache_key)
|
||||
meta_path = cache_path + '.meta'
|
||||
|
||||
if not os.path.exists(cache_path):
|
||||
return None
|
||||
|
||||
# 检查过期
|
||||
if os.path.exists(meta_path):
|
||||
try:
|
||||
with open(meta_path, 'r') as f:
|
||||
meta = json.load(f)
|
||||
if time.time() > meta.get('expires', 0):
|
||||
return None
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
try:
|
||||
with open(cache_path, 'rb') as f:
|
||||
return f.read()
|
||||
except Exception:
|
||||
return None
|
||||
|
||||
def _set_cache(self, cache_key: str, data: bytes):
|
||||
"""设置缓存"""
|
||||
cache_path = self._get_cache_path(cache_key)
|
||||
meta_path = cache_path + '.meta'
|
||||
|
||||
os.makedirs(os.path.dirname(cache_path), exist_ok=True)
|
||||
|
||||
try:
|
||||
with open(cache_path, 'wb') as f:
|
||||
f.write(data)
|
||||
|
||||
meta = {
|
||||
'cached_at': time.time(),
|
||||
'expires': time.time() + self.cache_ttl,
|
||||
'size': len(data)
|
||||
}
|
||||
|
||||
with open(meta_path, 'w') as f:
|
||||
json.dump(meta, f)
|
||||
|
||||
except Exception as e:
|
||||
print(f"APT缓存写入失败: {e}")
|
||||
|
||||
def _get_cache_path(self, cache_key: str) -> str:
|
||||
"""获取缓存路径"""
|
||||
subdir = cache_key[:2]
|
||||
return os.path.join(self.storage_dir, subdir, cache_key)
|
||||
|
||||
def get_cache_stats(self) -> dict:
|
||||
"""获取缓存统计"""
|
||||
if not os.path.exists(self.storage_dir):
|
||||
return {'files': 0, 'size': 0}
|
||||
|
||||
total_size = 0
|
||||
file_count = 0
|
||||
|
||||
for root, dirs, files in os.walk(self.storage_dir):
|
||||
for f in files:
|
||||
if not f.endswith('.meta'):
|
||||
file_count += 1
|
||||
total_size += os.path.getsize(os.path.join(root, f))
|
||||
|
||||
return {
|
||||
'files': file_count,
|
||||
'size': total_size,
|
||||
'size_formatted': self._format_size(total_size)
|
||||
}
|
||||
|
||||
def _format_size(self, size_bytes: int) -> str:
|
||||
"""格式化文件大小"""
|
||||
if size_bytes == 0:
|
||||
return "0 B"
|
||||
|
||||
units = ["B", "KB", "MB", "GB"]
|
||||
i = 0
|
||||
while size_bytes >= 1024 and i < len(units) - 1:
|
||||
size_bytes /= 1024.0
|
||||
i += 1
|
||||
|
||||
return f"{size_bytes:.2f} {units[i]}"
|
||||
|
||||
Reference in New Issue
Block a user