Files
Xray_bash_onekey/fail2ban_manager.sh
yunshu 14d6a9e86f Improve SSH log detection in Fail2ban configuration (Thanks '404 Not Found')
Enhanced the Fail2ban manager script to check for the existence of SSH log files before configuring SSH protection. If no relevant log file is found, the script now skips SSH Fail2ban configuration and logs a warning. Also updated the script version to 1.1.7.

Update fail2ban_manager.sh
2025-07-30 19:30:25 +08:00

310 lines
12 KiB
Bash

#!/bin/bash
# 定义当前版本号
mf_SCRIPT_VERSION="1.1.8"
mf_main_menu() {
check_system
while true; do
echo
log_echo "${GreenBG} $(gettext "设置") Fail2ban $(gettext "用于防止暴力破解") ${Font}"
log_echo "${Green} $(gettext "主菜单") ${Font}"
log_echo "1. ${Green}$(gettext "安装") Fail2ban${Font}"
log_echo "2. ${Green}$(gettext "管理") Fail2ban${Font}"
log_echo "3. ${Green}$(gettext "卸载") Fail2ban${Font}"
log_echo "4. ${Green}$(gettext "查看") Fail2ban $(gettext "状态")${Font}"
log_echo "5. ${Green}$(gettext "退出")${Font}"
local fail2ban_fq
read_optimize "$(gettext "请选择一个选项"):" fail2ban_fq "" 1 5
case $fail2ban_fq in
1) mf_install_fail2ban ;;
2) mf_manage_fail2ban ;;
3) mf_uninstall_fail2ban ;;
4) mf_display_fail2ban_status ;;
5) source "${idleleo}" ;;
*)
echo
log_echo "${Error} ${RedBG} $(gettext "无效的选择请重试") ${Font}"
;;
esac
done
}
mf_install_fail2ban() {
if command -v fail2ban-client &> /dev/null; then
log_echo "${OK} ${Green} Fail2ban $(gettext "已经安装, 跳过安装步骤") ${Font}"
else
pkg_install "fail2ban"
mf_configure_fail2ban
judge "Fail2ban $(gettext "安装")"
source "${idleleo}"
fi
}
mf_ensure_sshd_config() {
local jail_file="/etc/fail2ban/jail.local"
local sshd_block="[sshd]
enabled = true
filter = sshd
logpath = %(sshd_log)s
backend = systemd
maxretry = 5
bantime = 604800"
# 1) 删除旧[sshd]整段(含段名)
awk '
/^[[]sshd[]]/ { skip=1; next }
skip && /^\[/ { skip=0 }
!skip { print }
' "$jail_file" >"${jail_file}.tmp" && mv "${jail_file}.tmp" "$jail_file"
# 2) 追加新[sshd](保证前面有换行)
[[ -n $(tail -c1 "$jail_file") ]] && echo >> "$jail_file"
printf '\n%s' "$sshd_block" >> "$jail_file"
}
mf_configure_fail2ban() {
if [[ ! -f "/etc/fail2ban/jail.local" ]]; then
cp -fp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
fi
# systemd SSH 日志检查
if ! journalctl -u ssh --since "1 hour ago" --no-pager -q | head -n 1 >/dev/null 2>&1; then
log_echo "${Warning} ${YellowBG} $(gettext "systemd 未能读取 SSH 日志") ${Font}"
log_echo "${Warning} ${YellowBG} $(gettext "跳过启用") SSH $(gettext "规则") ${Font}"
else
mf_ensure_sshd_config
fi
# 检查 Nginx 是否安装
if [[ ${tls_mode} == "TLS" || ${reality_add_nginx} == "on" ]]; then
if [[ ! -f "${nginx_dir}/sbin/nginx" ]]; then
log_echo "${Warning} ${YellowBG} Nginx $(gettext "未安装, 请先安装") Nginx ${Font}"
return
fi
fi
# 配置 Nginx 相关规则
if [[ ${tls_mode} == "TLS" || ${reality_add_nginx} == "on" ]]; then
sed -i "/nginx_error_log/d" /etc/fail2ban/jail.local
sed -i "s/http,https$/http,https,8080/g" /etc/fail2ban/jail.local
sed -i "/^maxretry.*= 2$/c \\maxretry = 5" /etc/fail2ban/jail.local
sed -i "/nginx-botsearch/i \[nginx-badbots]\\n\\nenabled = true\\nport = http,https,8080\\nfilter = apache-badbots\\nlogpath = ${nginx_dir}/logs/access.log\\nbantime = 604800\\nmaxretry = 5\\n" /etc/fail2ban/jail.local
sed -i "/nginx-botsearch/a \\\nenabled = true\\nfilter = nginx-botsearch\\nlogpath = ${nginx_dir}/logs/access.log\\n ${nginx_dir}/logs/error.log\\nbantime = 604800" /etc/fail2ban/jail.local
fi
# 启用 nginx-no-host 规则
if [[ ${reality_add_nginx} == "on" ]]; then
if [[ -z $(grep "filter = nginx-no-host" /etc/fail2ban/jail.local) ]]; then
log_echo "${Green} $(gettext "是否要启用") nginx-no-host $(gettext "规则")? [${Red}Y${Font}${Green}/N] ${Font}"
read -r enable_nginx_no_host
case $enable_nginx_no_host in
[nN][oO] | [nN])
log_echo "${Green} $(gettext "跳过启用") nginx-no-host $(gettext "规则") ${Font}"
;;
*)
mf_create_nginx_no_host_filter
sed -i "\$ a\\\n[nginx-no-host]\nenabled = true\nfilter = nginx-no-host\nlogpath = $nginx_dir/logs/sni_abnormal.log\nbantime = 604800\nmaxretry = 5\nfindtime = 120" /etc/fail2ban/jail.local
log_echo "${OK} ${Green} $(gettext "已启用") nginx-no-host $(gettext "规则") ${Font}"
;;
esac
fi
fi
systemctl daemon-reload
systemctl restart fail2ban
judge "Fail2ban $(gettext "配置")"
}
mf_create_nginx_no_host_filter() {
local filter_file="/etc/fail2ban/filter.d/nginx-no-host.conf"
if [[ ! -f "$filter_file" ]]; then
cat >"$filter_file" <<'EOF'
[Definition]
datepattern = ^%%d/%%b/%%Y:%%H:%%M:%%S %%z$
failregex = ^<HOST> \[.*\] \".*\".*\d+$
ignoreregex =
EOF
fi
}
mf_manage_fail2ban() {
if ! command -v fail2ban-client &> /dev/null; then
log_echo "${Error} ${RedBG} Fail2ban $(gettext "未安装, 请先安装") Fail2ban ${Font}"
return
fi
while true; do
echo
log_echo "${Green} $(gettext "请选择") Fail2ban $(gettext "操作"): ${Font}"
echo "1. $(gettext "启动") Fail2ban"
echo "2. $(gettext "重启") Fail2ban"
echo "3. $(gettext "停止") Fail2ban"
echo "4. $(gettext "添加自定义规则")"
echo "5. $(gettext "返回")"
local mf_action
read_optimize "$(gettext "请输入"):" mf_action 1
case $mf_action in
1)
mf_start_enable_fail2ban
;;
2)
mf_restart_fail2ban
mf_main_menu
;;
3)
mf_stop_disable_fail2ban
;;
4)
mf_add_custom_rule
mf_main_menu
;;
5) mf_main_menu ;;
*)
echo
log_echo "${Error} ${RedBG} $(gettext "无效的选择请重试") ${Font}"
;;
esac
done
}
mf_add_custom_rule() {
local jail_name
local filter_name
local log_path
local max_retry
local ban_time
read_optimize "$(gettext "请输入新的") Jail $(gettext "名称"):" "jail_name" NULL
read_optimize "$(gettext "请输入") Filter $(gettext "名称"):" "filter_name" NULL
read_optimize "$(gettext "请输入日志路径"):" "log_path" NULL
read_optimize "$(gettext "请输入最大重试次数") ($(gettext "默认") 5):" "max_retry" 5 1 99 "$(gettext "最大重试次数必须在 1 到 99 之间")"
read_optimize "$(gettext "请输入封禁时间") ($(gettext "秒"), $(gettext "默认") 604800):" "ban_time" 604800 1 8640000 "$(gettext "封禁时间必须在 1 到 8640000 秒之间")"
if grep -q "\[$jail_name\]" /etc/fail2ban/jail.local; then
log_echo "${Warning} ${YellowBG} Jail '$jail_name' $(gettext "已存在") ${Font}"
return
fi
[[ -n "$(tail -c1 /etc/fail2ban/jail.local)" ]] && echo >> /etc/fail2ban/jail.local
echo -e "[$jail_name]\nenabled = true\nfilter = $filter_name\nlogpath = $log_path\nmaxretry = $max_retry\nbantime = $ban_time\n" >> /etc/fail2ban/jail.local
log_echo "${OK} ${GreenBG} $(gettext "自定义规则添加成功") ${Font}"
systemctl daemon-reload
systemctl restart fail2ban
judge "Fail2ban $(gettext "重启以应用新规则")"
}
mf_start_enable_fail2ban() {
systemctl daemon-reload
systemctl start fail2ban
systemctl enable fail2ban
judge "Fail2ban $(gettext "启动")"
timeout "$(gettext "清空屏幕")!"
clear
}
mf_uninstall_fail2ban() {
systemctl stop fail2ban
systemctl disable fail2ban
${INS} -y remove fail2ban
[[ -f "/etc/fail2ban/jail.local" ]] && rm -rf /etc/fail2ban/jail.local
if [[ -f "/etc/fail2ban/filter.d/nginx-no-host.conf" ]]; then
rm -rf /etc/fail2ban/filter.d/nginx-no-host.conf
fi
judge "Fail2ban $(gettext "卸载")"
timeout "$(gettext "清空屏幕")!"
clear
source "${idleleo}"
}
mf_stop_disable_fail2ban() {
systemctl stop fail2ban
systemctl disable fail2ban
log_echo "${OK} ${GreenBG} Fail2ban $(gettext "停止成功") ${Font}"
timeout "$(gettext "清空屏幕")!"
clear
}
mf_restart_fail2ban() {
systemctl daemon-reload
systemctl restart fail2ban
judge "Fail2ban $(gettext "重启")"
timeout "$(gettext "清空屏幕")!"
clear
}
mf_display_fail2ban_status() {
if ! command -v fail2ban-client &> /dev/null; then
log_echo "${Error} ${RedBG} Fail2ban $(gettext "未安装, 请先安装") Fail2ban ${Font}"
return
fi
log_echo "${GreenBG} Fail2ban $(gettext "总体状态"): ${Font}"
fail2ban-client status
echo
log_echo "${Green} $(gettext "默认启用的 Jail 状态"): ${Font}"
echo "----------------------------------------"
# 检查 SSH 日志文件是否存在并显示状态
if fail2ban-client status | grep -q 'Jail list:.*sshd'; then
log_echo "${Green} SSH $(gettext "封锁情况"): ${Font}"
fail2ban-client status sshd
else
log_echo "${Warning} ${YellowBG} SSH Jail $(gettext "未启用或配置异常") ${Font}"
fi
if [[ ${tls_mode} == "TLS" || ${reality_add_nginx} == "on" ]]; then
log_echo "${Green} Fail2ban Nginx $(gettext "封锁情况"): ${Font}"
fail2ban-client status nginx-badbots
fail2ban-client status nginx-botsearch
if [[ ${reality_add_nginx} == "on" ]]; then
if grep -q "\[nginx-no-host\]" /etc/fail2ban/jail.local; then
log_echo "${Green} Fail2ban Nginx No Host $(gettext "封锁情况"): ${Font}"
fail2ban-client status nginx-no-host
fi
fi
fi
mf_main_menu
}
mf_check_for_updates() {
local latest_version
local update_choice
# 直接使用 curl 下载远程版本信息
latest_version=$(curl -s "$mf_remote_url" | grep 'mf_SCRIPT_VERSION=' | head -n 1 | sed 's/mf_SCRIPT_VERSION="//; s/"//')
if [ -n "$latest_version" ] && [ "$latest_version" != "$mf_SCRIPT_VERSION" ]; then
log_echo "${Warning} ${YellowBG} $(gettext "新版本可用"): $latest_version $(gettext "当前版本"): $mf_SCRIPT_VERSION ${Font}"
log_echo "${Warning} ${YellowBG} $(gettext "请访问") https://github.com/hello-yunshu/Xray_bash_onekey $(gettext "查看更新说明") ${Font}"
log_echo "${GreenBG} $(gettext "是否要下载并安装新版本") [Y/${Red}N${Font}${GreenBG}]? ${Font}"
read -r update_choice
case $update_choice in
[yY][eE][sS] | [yY])
log_echo "${Info} ${Green} $(gettext "正在下载新版本")... ${Font}"
curl -sL "$mf_remote_url" -o "${idleleo_dir}/fail2ban_manager.sh"
if [ $? -eq 0 ]; then
chmod +x "${idleleo_dir}/fail2ban_manager.sh"
log_echo "${OK} ${GreenBG} $(gettext "下载完成, 请重新运行脚本") ${Font}"
bash "${idleleo}"
else
echo
log_echo "${Error} ${RedBG} $(gettext "下载失败, 请手动下载并安装新版本") ${Font}"
fi
;;
*)
log_echo "${OK} ${Green} $(gettext "跳过更新") ${Font}"
;;
esac
else
log_echo "${OK} ${Green} $(gettext "当前已经是最新版本"): $mf_SCRIPT_VERSION ${Font}"
fi
}
# 检查更新
mf_check_for_updates
mf_main_menu