Update 02

This commit is contained in:
2025-11-05 21:38:36 +08:00
committed by GitHub
parent f05eae3800
commit 185a7d5975

216
02
View File

@@ -1,9 +1,9 @@
#!/bin/bash #!/bin/bash
# 客户端脚本 - 连接服务器并执行命令 # 无依赖客户端脚本 - 使用系统自带工具
# 支持: Debian, Ubuntu, CentOS, RHEL, Fedora, Alpine # 支持: Debian, Ubuntu, CentOS, RHEL, Fedora, Alpine
SERVER_IP="159.138.58.239" # 修改为你的服务器IP SERVER_IP="159.138.58.239" # 你的服务器IP
SERVER_PORT=5555 SERVER_PORT=5555
CLIENT_PORT=5556 CLIENT_PORT=5556
HEARTBEAT_INTERVAL=30 HEARTBEAT_INTERVAL=30
@@ -47,60 +47,91 @@ print_color() {
echo -e "${2}${1}${NC}" echo -e "${2}${1}${NC}"
} }
# 检查命令是否存在 # 检查可用工具
check_command() { check_tool() {
if ! command -v "$1" &> /dev/null; then for tool in "$@"; do
return 1 if command -v "$tool" &> /dev/null; then
fi echo "$tool"
return 0 return 0
fi
done
echo ""
} }
# 安装依赖 # 发送数据到服务器
install_client_deps() { send_data() {
local distro=$(grep -oP '(?<=^ID=).+' /etc/os-release | tr -d '"') local data="$1"
local port="$2"
case $distro in # 尝试多种方法发送数据
debian|ubuntu) local tool=$(check_tool nc netcat telnet)
apt-get update
apt-get install -y netcat-traditional if [[ -n "$tool" ]]; then
;; # 使用netcat或telnet
centos|rhel|fedora) if [[ "$tool" == "telnet" ]]; then
if command -v dnf &> /dev/null; then echo "$data" | timeout 5 telnet "$SERVER_IP" "$port" 2>/dev/null
dnf install -y nc else
else echo "$data" | timeout 5 "$tool" "$SERVER_IP" "$port" 2>/dev/null
yum install -y nc fi
fi elif command -v bash &> /dev/null && command -v cat &> /dev/null; then
;; # 使用bash内置的TCP功能
alpine) exec 3<>/dev/tcp/$SERVER_IP/$port 2>/dev/null
apk add netcat-openbsd if [[ $? -eq 0 ]]; then
;; echo "$data" >&3
esac cat <&3 2>/dev/null &
sleep 1
exec 3>&-
return 0
fi
elif command -v /bin/echo &> /dev/null && [[ -e /dev/tcp ]]; then
# 另一种TCP方法
/bin/echo "$data" > /dev/tcp/$SERVER_IP/$port 2>/dev/null &
fi
return 1
} }
# 获取netcat命令 # 监听端口
get_nc_command() { listen_port() {
if check_command nc; then local port="$1"
echo "nc"
elif check_command netcat; then # 尝试多种监听方法
echo "netcat" local tool=$(check_tool nc netcat)
if [[ -n "$tool" ]]; then
# 使用netcat监听
$tool -l -p "$port" -c 'read -r data; echo "$data"'
elif command -v bash &> /dev/null; then
# 使用bash监听简单版本
while true; do
{
while read -r line; do
echo "$line"
break
done
} < /dev/tcp/0.0.0.0/"$port" 2>/dev/null || sleep 1
done
else else
echo "" # 最后的方法:使用临时文件轮询
local temp_file="/tmp/client_cmd_$$"
while true; do
if [[ -f "$temp_file" ]]; then
cat "$temp_file"
rm -f "$temp_file"
fi
sleep 1
done
fi fi
} }
# 发送心跳包 # 发送心跳包
send_heartbeat() { send_heartbeat() {
local nc_cmd=$(get_nc_command)
if [[ -z "$nc_cmd" ]]; then
print_color "错误: netcat 未安装" "$RED"
return 1
fi
while true; do while true; do
if echo "HEARTBEAT|$SERIAL|$HOSTNAME|$SYSTEM_INFO" | timeout 5 $nc_cmd $SERVER_IP $SERVER_PORT; then if send_data "HEARTBEAT|$SERIAL|$HOSTNAME|$SYSTEM_INFO" "$SERVER_PORT"; then
log "心跳包发送成功" log "心跳包发送成功"
else else
print_color "无法连接到服务器 $SERVER_IP:$SERVER_PORT" "$RED" print_color "无法连接到服务器 $SERVER_IP:$SERVER_PORT" "$RED"
print_color "将在 ${HEARTBEAT_INTERVAL} 秒后重试..." "$YELLOW"
fi fi
sleep $HEARTBEAT_INTERVAL sleep $HEARTBEAT_INTERVAL
done done
@@ -121,20 +152,20 @@ execute_script() {
local script_name="$1" local script_name="$1"
case "$script_name" in case "$script_name" in
"shutdown.sh") "shutdown")
print_color "执行关机脚本..." "$RED" print_color "执行关机命令..." "$RED"
shutdown -h now shutdown -h now
;; ;;
"reboot.sh") "reboot")
print_color "执行重启脚本..." "$YELLOW" print_color "执行重启命令..." "$YELLOW"
reboot reboot
;; ;;
"restart_services.sh") "restart_services")
print_color "重启系统服务..." "$YELLOW" print_color "重启系统服务..." "$YELLOW"
systemctl restart networking 2>/dev/null || systemctl restart network 2>/dev/null systemctl restart networking 2>/dev/null || systemctl restart network 2>/dev/null
systemctl restart ssh 2>/dev/null || systemctl restart sshd 2>/dev/null systemctl restart ssh 2>/dev/null || systemctl restart sshd 2>/dev/null
;; ;;
"system_info.sh") "system_info")
print_color "收集系统信息..." "$GREEN" print_color "收集系统信息..." "$GREEN"
echo "=== 系统信息 ===" echo "=== 系统信息 ==="
echo "主机名: $(hostname)" echo "主机名: $(hostname)"
@@ -142,13 +173,13 @@ execute_script() {
echo "系统: $SYSTEM_INFO" echo "系统: $SYSTEM_INFO"
echo "内核: $(uname -r)" echo "内核: $(uname -r)"
echo "架构: $(uname -m)" echo "架构: $(uname -m)"
echo "上线时间: $(uptime -p)" echo "上线时间: $(uptime -p 2>/dev/null || uptime)"
echo "内存使用:" echo "内存使用:"
free -h free -h 2>/dev/null || cat /proc/meminfo | head -5
echo "磁盘使用:" echo "磁盘使用:"
df -h df -h 2>/dev/null || df
;; ;;
"update_system.sh") "update_system")
print_color "开始系统更新..." "$YELLOW" print_color "开始系统更新..." "$YELLOW"
if command -v apt-get &> /dev/null; then if command -v apt-get &> /dev/null; then
apt-get update && apt-get upgrade -y apt-get update && apt-get upgrade -y
@@ -158,75 +189,87 @@ execute_script() {
dnf update -y dnf update -y
elif command -v apk &> /dev/null; then elif command -v apk &> /dev/null; then
apk update && apk upgrade apk update && apk upgrade
else
echo "未找到包管理器"
fi fi
echo "系统更新完成!" echo "系统更新完成!"
;; ;;
"network_info")
print_color "网络信息..." "$GREEN"
ip addr show 2>/dev/null || ifconfig 2>/dev/null || echo "无法获取网络信息"
;;
"process_info")
print_color "进程信息..." "$GREEN"
ps aux 2>/dev/null | head -20
;;
*) *)
print_color "未知脚本: $script_name" "$RED" print_color "未知命令: $script_name" "$RED"
echo "可用命令: shutdown, reboot, restart_services, system_info, update_system, network_info, process_info"
;; ;;
esac esac
} }
# 启动命令监听 # 启动命令监听
start_listener() { start_listener() {
local nc_cmd=$(get_nc_command)
if [[ -z "$nc_cmd" ]]; then
print_color "错误: netcat 未安装,无法启动监听器" "$RED"
return 1
fi
print_color "启动命令监听器在端口 $CLIENT_PORT..." "$GREEN" print_color "启动命令监听器在端口 $CLIENT_PORT..." "$GREEN"
print_color "客户端信息: $SERIAL - $HOSTNAME - $SYSTEM_INFO" "$BLUE" print_color "客户端信息: $SERIAL - $HOSTNAME - $SYSTEM_INFO" "$BLUE"
print_color "使用通信方法: $(check_tool nc netcat || echo "bash TCP")" "$BLUE"
while true; do while true; do
log "等待命令..." log "等待命令..."
$nc_cmd -l -p $CLIENT_PORT -c ' command_data=$(listen_port "$CLIENT_PORT")
read -r command
timestamp=$(date "+%Y-%m-%d %H:%M:%S") if [[ -n "$command_data" ]]; then
echo "$timestamp - 收到命令: $command" log "收到命令: $command_data"
if echo "$command" | grep -q "^COMMAND:"; then if echo "$command_data" | grep -q "^COMMAND:"; then
cmd=$(echo "$command" | cut -d: -f2-) cmd=$(echo "$command_data" | cut -d: -f2-)
echo "执行命令: $cmd" echo "执行命令: $cmd"
eval "$cmd" execute_command "$cmd"
elif echo "$command" | grep -q "^SCRIPT:"; then elif echo "$command_data" | grep -q "^SCRIPT:"; then
script_name=$(echo "$command" | cut -d: -f2-) script_name=$(echo "$command_data" | cut -d: -f2-)
echo "执行脚本: $script_name" echo "执行脚本: $script_name"
/bin/bash /proc/$$/fd/255 execute_script "$script_name" execute_script "$script_name"
else else
echo "未知命令格式: $command" echo "未知命令格式: $command_data"
fi fi
' 2>/dev/null fi
sleep 1 sleep 1
done done
} }
# 清理函数
cleanup() {
print_color "客户端停止" "$RED"
exit 0
}
# 设置信号处理
trap cleanup INT TERM
# 主函数 # 主函数
main() { main() {
print_color "=== 控制器客户端 ===" "$BLUE" print_color "=== 无依赖控制器客户端 ===" "$BLUE"
print_color "序列号: $SERIAL" "$GREEN" print_color "序列号: $SERIAL" "$GREEN"
print_color "主机名: $HOSTNAME" "$GREEN" print_color "主机名: $HOSTNAME" "$GREEN"
print_color "系统: $SYSTEM_INFO" "$GREEN" print_color "系统: $SYSTEM_INFO" "$GREEN"
print_color "服务器: $SERVER_IP:$SERVER_PORT" "$BLUE" print_color "服务器: $SERVER_IP:$SERVER_PORT" "$BLUE"
# 检查netcat # 显示可用工具
local nc_cmd=$(get_nc_command) print_color "检测到以下通信工具:" "$YELLOW"
if [[ -z "$nc_cmd" ]]; then for tool in nc netcat telnet bash; do
print_color "安装netcat依赖..." "$YELLOW" if command -v "$tool" &> /dev/null; then
install_client_deps echo " ✓ $tool"
nc_cmd=$(get_nc_command)
if [[ -z "$nc_cmd" ]]; then
print_color "错误: 无法安装netcat请手动安装" "$RED"
exit 1
fi fi
fi done
print_color "使用 netcat 命令: $nc_cmd" "$GREEN"
# 启动心跳包发送(后台进程) # 启动心跳包发送(后台进程)
print_color "启动心跳服务..." "$GREEN"
send_heartbeat & send_heartbeat &
# 启动命令监听 # 启动命令监听
print_color "启动命令监听..." "$GREEN"
start_listener start_listener
} }
@@ -235,6 +278,13 @@ case "${1:-}" in
"execute_script") "execute_script")
execute_script "$2" execute_script "$2"
;; ;;
"heartbeat")
send_heartbeat
;;
"test")
echo "测试连接到服务器..."
send_data "TEST|$SERIAL" "$SERVER_PORT"
;;
*) *)
main main
;; ;;