feat: 简航 SimpleNav 个人网站导航系统（PHP + SQLite）
- 前台：搜索引擎切换+联想下拉、网格板块（常用/工具）、合集标签页 - 后台：初始化/登录、网站/板块/引擎增删改、上下移排序 - 添加网站自动抓取名称与图标（存储于服务器），支持自定义简称 - 一键全部更新（批量刷新图标+名称，保留自定义简称） - 搜索联想服务端代理（必应/百度/谷歌/搜狗/360/DuckDuckGo） - 零依赖：原生 CSS/JS，PDO SQLite
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#!/bin/bash
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#
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# SimpleNav（简航）部署账号初始化脚本
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# 在服务器上以 root 身份运行一次即可（可重复运行，幂等）
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#
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# 作用：
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# 1. 创建 simplenav 部署用户（无密码，只能密钥登录，无任何特权组）
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# 2. 安装本地 ssh 公钥
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# 3. 只给 /www/wwwroot/n.yangyq.net 的读写权限（POSIX ACL，不改原有属主）
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# 4. 预建应用目录 /simplenav/{data,uploads/icons} 并让部署用户与 web 用户都可读写
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#
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set -euo pipefail
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# ==================== 配置 ====================
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DEPLOY_USER="simplenav"
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SITE="/www/wwwroot/n.yangyq.net"
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APP_SUBDIR="simplenav" # 先部署到子目录测试，通过后再放根目录
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PUBKEY="ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOCvCGMMkyf9CHaedSdZe4XfXrS0MCW15REibldEF6U4 deploy@n.yangyq.net"
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# ==============================================
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[ "$(id -u)" -eq 0 ] || { echo "错误：请用 root 运行"; exit 1; }
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[ -d "$SITE" ] || { echo "错误：目录不存在 $SITE"; exit 1; }
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command -v setfacl >/dev/null 2>&1 || {
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echo "错误：缺少 setfacl，请先安装 acl"
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echo " CentOS/RHEL/统信: yum install -y acl"
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echo " Debian/Ubuntu: apt-get install -y acl"
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exit 1
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}
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WEB_USER=$(stat -c '%U' "$SITE")
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echo "站点目录属主（web 用户）：$WEB_USER"
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echo
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# ---------- 1. 创建用户 ----------
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if id "$DEPLOY_USER" >/dev/null 2>&1; then
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echo "[=] 用户 $DEPLOY_USER 已存在，跳过创建"
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else
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useradd -m -s /bin/bash "$DEPLOY_USER"
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passwd -l "$DEPLOY_USER" >/dev/null 2>&1 || true
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echo "[+] 已创建用户 $DEPLOY_USER（密码锁定，仅允许密钥登录）"
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fi
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for g in wheel sudo adm root; do
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if id -nG "$DEPLOY_USER" | tr ' ' '\n' | grep -qx "$g"; then
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gpasswd -d "$DEPLOY_USER" "$g" >/dev/null 2>&1 || true
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echo "[!] 已从特权组 $g 中移除 $DEPLOY_USER"
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fi
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done
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echo "[i] 当前所属组：$(id -nG "$DEPLOY_USER")"
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# ---------- 2. 安装公钥 ----------
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install -d -m 700 -o "$DEPLOY_USER" -g "$DEPLOY_USER" "/home/$DEPLOY_USER/.ssh"
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AUTH="/home/$DEPLOY_USER/.ssh/authorized_keys"
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touch "$AUTH"
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if grep -qF "$PUBKEY" "$AUTH"; then
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echo "[=] 公钥已存在，跳过"
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else
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echo "$PUBKEY" >> "$AUTH"
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echo "[+] 公钥已写入 authorized_keys"
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fi
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chmod 600 "$AUTH"
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chown "$DEPLOY_USER:$DEPLOY_USER" "$AUTH"
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chmod 700 "/home/$DEPLOY_USER"
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echo
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# ---------- 3. 上级目录穿透 ----------
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for d in /www /www/wwwroot; do
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if [ -d "$d" ]; then
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other_bit=$(stat -c '%a' "$d"); other_bit=${other_bit: -1}
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if [ "$other_bit" -lt 1 ]; then
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setfacl -m "u:$DEPLOY_USER:x" "$d"
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echo "[+] 已为 $d 补充 $DEPLOY_USER 的穿透(x)权限"
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fi
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fi
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done
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# ---------- 4. 目录授权（ACL，不改属主） ----------
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# 站点根下可能有 root 属主文件（宝塔 .user.ini），setfacl -R 会报 EPERM，需要容错
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acl_denied=""
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setfacl -R -m "u:$DEPLOY_USER:rwX" "$SITE" 2>/dev/null || acl_denied="yes"
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setfacl -R -d -m "u:$DEPLOY_USER:rwX" "$SITE" 2>/dev/null || acl_denied="yes"
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if [ "$WEB_USER" != "root" ] && [ "$WEB_USER" != "UNKNOWN" ]; then
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setfacl -R -m "u:$WEB_USER:rwX" "$SITE" 2>/dev/null || true
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setfacl -R -d -m "u:$WEB_USER:rwX" "$SITE" 2>/dev/null || true
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fi
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if [ -n "$acl_denied" ]; then
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find "$SITE" ! -user "$WEB_USER" -print0 2>/dev/null | while IFS= read -r -d '' p; do
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printf " [跳过·属主非 %s] %s\n" "$WEB_USER" "$p"
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done
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echo "[!] 有部分条目未能设置 ACL（通常是 root 属主的 .user.ini，不影响部署）"
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fi
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echo "[+] 已对 $SITE 授予 $DEPLOY_USER 与 $WEB_USER 读写权限（属主未改动）"
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echo
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# ---------- 5. 预建应用可写目录 ----------
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APP="$SITE/$APP_SUBDIR"
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install -d -m 775 "$APP/data" "$APP/uploads/icons"
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setfacl -R -m "u:$DEPLOY_USER:rwX,u:$WEB_USER:rwX" "$APP" 2>/dev/null || true
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setfacl -R -d -m "u:$DEPLOY_USER:rwX,u:$WEB_USER:rwX" "$APP" 2>/dev/null || true
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echo "[+] 已预建 $APP/{data,uploads/icons}，并让 $DEPLOY_USER 与 $WEB_USER 可读写"
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echo
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# ---------- 6. 验收 ----------
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echo "==================== 验收 ===================="
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echo "用户信息： $(id "$DEPLOY_USER")"
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echo "密钥文件： $(stat -c '%a %U:%G' "$AUTH")"
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echo
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echo -n "以 $DEPLOY_USER 身份在 $SITE 写测试： "
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if su -s /bin/sh "$DEPLOY_USER" -c "touch '$SITE/.deploy_write_test' && rm -f '$SITE/.deploy_write_test'"; then
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echo "通过"
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else
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echo "失败（请检查上面的 ACL 输出）"
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fi
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echo -n "以 $DEPLOY_USER 身份读 /etc/shadow： "
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if su -s /bin/sh "$DEPLOY_USER" -c "cat /etc/shadow" >/dev/null 2>&1; then
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echo "竟然可读（异常）"
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else
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echo "被拒绝（正常）"
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fi
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echo "=============================================="
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echo
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echo "完成后请把下面这行结果发我："
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echo " sudo -l -U $DEPLOY_USER"
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