#!/bin/bash
# Ubuntu 24.04 noble 源切换脚本（DEB822，适配HK VPS，仅deb，无deb-src）by Laitai.top
# 选项：hk(https) / aliyun(http) / au(http) / 还原官方默认 / 仅写入超时配置
# 自动写入apt超时配置 /etc/apt/apt.conf.d/99timeout
# 目标源文件：/etc/apt/sources.list.d/ubuntu.sources
set -e
SOURCE_FILE="/etc/apt/sources.list.d/ubuntu.sources"
TIMEOUT_CONF="/etc/apt/apt.conf.d/99timeout"
BAK_FILE="${SOURCE_FILE}.bak.$(date +%Y%m%d_%H%M%S)"
# 写入apt超时配置（永久生效，所有源共用）
write_timeout_conf() {
cat > "$TIMEOUT_CONF" <<'EOF'
Acquire::http::Timeout "30";
Acquire::https::Timeout "30";
Acquire::ftp::Timeout "30";
Acquire::Retries "3";
EOF
echo "✅ 已写入apt超时配置: $TIMEOUT_CONF"
}
clear
echo "============================================="
echo " Ubuntu 24.04 noble 源切换菜单脚本"
echo " 适配HK VPS｜DEB822格式"
echo "============================================="
echo " 1) 香港官方源 hk.archive.ubuntu.com (https，优先推荐)"
echo " 2) 阿里云源 mirrors.aliyun.com (http，规避TLS握手卡死)"
echo " 3) 澳洲官方源 au.archive.ubuntu.com (http，保底)"
echo " 4) 还原原始官方默认源 archive+security.ubuntu.com"
echo " 5) 仅写入Apt超时优化配置，【不切换源、不执行update】"
echo " 0) 退出脚本"
echo "============================================="
read -p "请输入选项 [0-5]：" opt
case $opt in
1)
NAME="HK官方HTTPS源"
cat > "$SOURCE_FILE" <<'EOF'
Types: deb
URIs: https://hk.archive.ubuntu.com/ubuntu
Suites: noble noble-updates noble-backports
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
## Ubuntu security updates. Aside from URIs and Suites,
## this should mirror your choices in the previous section.
Types: deb
URIs: https://hk.archive.ubuntu.com/ubuntu
Suites: noble-security
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
EOF
;;
2)
NAME="阿里云HTTP源"
cat > "$SOURCE_FILE" <<'EOF'
Types: deb
URIs: http://mirrors.aliyun.com/ubuntu
Suites: noble noble-updates noble-backports
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
## Ubuntu security updates. Aside from URIs and Suites,
## this should mirror your choices in the previous section.
Types: deb
URIs: http://mirrors.aliyun.com/ubuntu
Suites: noble-security
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
EOF
;;
3)
NAME="澳洲AU HTTP源"
cat > "$SOURCE_FILE" <<'EOF'
Types: deb
URIs: http://au.archive.ubuntu.com/ubuntu
Suites: noble noble-updates noble-backports
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
## Ubuntu security updates. Aside from URIs and Suites,
## this should mirror your choices in the previous section.
Types: deb
URIs: http://au.archive.ubuntu.com/ubuntu
Suites: noble-security
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
EOF
;;
4)
NAME="原生官方默认源"
cat > "$SOURCE_FILE" <<'EOF'
Types: deb
URIs: http://archive.ubuntu.com/ubuntu
Suites: noble noble-updates noble-backports
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
## Ubuntu security updates. Aside from URIs and Suites,
## this should mirror your choices in the previous section.
Types: deb
URIs: http://security.ubuntu.com/ubuntu
Suites: noble-security
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
EOF
;;
5)
echo "👉 模式：仅写入超时配置，源文件保持不变"
write_timeout_conf
echo "✅ 完成，不修改源、不执行apt update"
exit 0
;;
0)
echo "脚本退出，无修改"
exit 0
;;
*)
echo "❌ 无效选项，退出"
exit 1
;;
esac
# 换源分支才走备份+update
echo ""
echo "✅ 备份原源文件到：$BAK_FILE"
cp "$SOURCE_FILE" "$BAK_FILE"
write_timeout_conf
echo ""
echo "✅ 已切换为：$NAME"
echo "---------------------------------------------"
echo "正在执行 apt clean && apt update ..."
apt clean
apt update
echo ""
echo "✅ 操作完成！"
echo "连通性测试命令："
case $opt in
1) echo "curl -v https://hk.archive.ubuntu.com/ubuntu/dists/noble/InRelease" ;;
2) echo "curl -v http://mirrors.aliyun.com/ubuntu/dists/noble/InRelease" ;;
3) echo "curl -v http://au.archive.ubuntu.com/ubuntu/dists/noble/InRelease" ;;
4) echo "curl -v http://archive.ubuntu.com/ubuntu/dists/noble/InRelease" ;;
esac
逻辑区分：
选 1~4：换源 → 备份源文件 → 写入超时配置 → clean + update
选 5：只调用 write_timeout_conf，其余都不动，直接结束。
