293 lines
9.9 KiB
Bash
293 lines
9.9 KiB
Bash
#!/bin/bash
|
||
|
||
# 命令监控系统安装脚本
|
||
# 功能：监控系统所有用户的命令执行并记录
|
||
|
||
INSTALL_DIR="/root/install"
|
||
SCRIPT_NAME="cmd_monitor.sh"
|
||
SCRIPT_PATH="$INSTALL_DIR/$SCRIPT_NAME"
|
||
LOG_DIR="/root/command_logs"
|
||
PID_FILE="/tmp/cmd_monitor.pid"
|
||
|
||
# 颜色定义
|
||
RED='\033[0;31m'
|
||
GREEN='\033[0;32m'
|
||
YELLOW='\033[1;33m'
|
||
BLUE='\033[0;34m'
|
||
NC='\033[0m' # No Color
|
||
|
||
# 打印颜色信息
|
||
info() { echo -e "${BLUE}[INFO]${NC} $1"; }
|
||
success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
|
||
warning() { echo -e "${YELLOW}[WARNING]${NC} $1"; }
|
||
error() { echo -e "${RED}[ERROR]${NC} $1"; }
|
||
|
||
# 检查root权限
|
||
check_root() {
|
||
if [ "$EUID" -ne 0 ]; then
|
||
error "请使用root权限运行此脚本"
|
||
exit 1
|
||
fi
|
||
}
|
||
|
||
# 创建必要的目录
|
||
create_directories() {
|
||
info "创建安装目录..."
|
||
mkdir -p "$INSTALL_DIR"
|
||
mkdir -p "$LOG_DIR"
|
||
chmod 755 "$INSTALL_DIR"
|
||
chmod 755 "$LOG_DIR"
|
||
}
|
||
|
||
# 创建监控脚本
|
||
create_monitor_script() {
|
||
info "创建监控脚本..."
|
||
|
||
cat > "$SCRIPT_PATH" << 'SCRIPT_EOF'
|
||
#!/bin/bash
|
||
|
||
INSTALL_DIR="/root/install"
|
||
SCRIPT_PATH="$INSTALL_DIR/cmd_monitor.sh"
|
||
LOG_DIR="/root/command_logs"
|
||
PID_FILE="/tmp/cmd_monitor.pid"
|
||
|
||
# 获取客户端IP
|
||
get_client_ip() {
|
||
local ip="unknown"
|
||
[ -n "$SSH_CLIENT" ] && ip=$(echo "$SSH_CLIENT" | awk '{print $1}')
|
||
[ "$ip" = "unknown" ] && [ -n "$SSH_CONNECTION" ] && ip=$(echo "$SSH_CONNECTION" | awk '{print $1}')
|
||
echo "$ip"
|
||
}
|
||
|
||
# 检查to命令
|
||
if [ "$1" = "to" ] || [ "$1" = "TO" ]; then
|
||
if [ -f "$PID_FILE" ] && ps -p $(cat "$PID_FILE") >/dev/null 2>&1; then
|
||
echo "切换到前台模式..."
|
||
kill $(cat "$PID_FILE") 2>/dev/null
|
||
rm -f "$PID_FILE"
|
||
exec "$SCRIPT_PATH" foreground
|
||
else
|
||
echo "切换到后台模式..."
|
||
exec "$SCRIPT_PATH" background
|
||
fi
|
||
exit 0
|
||
fi
|
||
|
||
case "${1:-}" in
|
||
background|start)
|
||
# 设置实时history
|
||
for user_dir in /home/* /root; do
|
||
[ -d "$user_dir" ] || continue
|
||
bashrc="$user_dir/.bashrc"
|
||
[ -f "$bashrc" ] || continue
|
||
if ! grep -q "PROMPT_COMMAND.*history.*a.*c.*r" "$bashrc" 2>/dev/null; then
|
||
echo "export PROMPT_COMMAND='history -a; history -c; history -r'" >> "$bashrc"
|
||
# 重新加载bashrc
|
||
[ -n "$BASH_VERSION" ] && source "$bashrc" 2>/dev/null
|
||
fi
|
||
done
|
||
|
||
# 后台启动
|
||
(
|
||
echo "=== 后台监控启动于: $(date) ===" >> "$LOG_DIR/background.log"
|
||
echo "监控用户: $(ls /home | tr '\n' ' ') root" >> "$LOG_DIR/background.log"
|
||
|
||
declare -A last_sizes
|
||
# 初始化文件大小
|
||
for user_dir in /home/* /root; do
|
||
[ -d "$user_dir" ] || continue
|
||
user=$(basename "$user_dir")
|
||
history_file="$user_dir/.bash_history"
|
||
[ -f "$history_file" ] && last_sizes["$user"]=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
|
||
done
|
||
|
||
while true; do
|
||
for user_dir in /home/* /root; do
|
||
[ -d "$user_dir" ] || continue
|
||
user=$(basename "$user_dir")
|
||
history_file="$user_dir/.bash_history"
|
||
[ -f "$history_file" ] || continue
|
||
|
||
current_size=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
|
||
last_size=${last_sizes["$user"]:-0}
|
||
|
||
if [ "$current_size" -gt "$last_size" ]; then
|
||
new_cmd=$(tail -c $((current_size - last_size)) "$history_file" 2>/dev/null | sed 's/^[ \t]*//;s/[ \t]*$//' | tail -n1)
|
||
if [ -n "$new_cmd" ] && [ ${#new_cmd} -gt 1 ] && [[ ! "$new_cmd" =~ ^(ls|cd|pwd|ll|history|exit|clear|to|TO|\.\/|sh |bash ) ]]; then
|
||
client_ip=$(get_client_ip)
|
||
timestamp=$(date '+%Y-%m-%d %H:%M:%S')
|
||
log_entry="[$timestamp] 用户:$user | 命令:$new_cmd | 来源:$client_ip"
|
||
echo "$log_entry" >> "$LOG_DIR/background.log"
|
||
echo "$log_entry" # 同时输出到控制台
|
||
fi
|
||
last_sizes["$user"]=$current_size
|
||
fi
|
||
done
|
||
sleep 2
|
||
done
|
||
) &
|
||
|
||
echo $! > "$PID_FILE"
|
||
echo "后台监控已启动 (PID: $!)"
|
||
echo "日志文件: $LOG_DIR/background.log"
|
||
;;
|
||
|
||
foreground)
|
||
echo "前台监控模式启动..."
|
||
echo "输入 'to' 切换到后台模式"
|
||
echo "按 Ctrl+C 停止监控"
|
||
echo "================================"
|
||
|
||
declare -A last_sizes
|
||
# 初始化文件大小
|
||
for user_dir in /home/* /root; do
|
||
[ -d "$user_dir" ] || continue
|
||
user=$(basename "$user_dir")
|
||
history_file="$user_dir/.bash_history"
|
||
[ -f "$history_file" ] && last_sizes["$user"]=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
|
||
done
|
||
|
||
while true; do
|
||
# 监控命令
|
||
for user_dir in /home/* /root; do
|
||
[ -d "$user_dir" ] || continue
|
||
user=$(basename "$user_dir")
|
||
history_file="$user_dir/.bash_history"
|
||
[ -f "$history_file" ] || continue
|
||
|
||
current_size=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
|
||
last_size=${last_sizes["$user"]:-0}
|
||
|
||
if [ "$current_size" -gt "$last_size" ]; then
|
||
new_cmd=$(tail -c $((current_size - last_size)) "$history_file" 2>/dev/null | sed 's/^[ \t]*//;s/[ \t]*$//' | tail -n1)
|
||
if [ -n "$new_cmd" ] && [ ${#new_cmd} -gt 1 ] && [[ ! "$new_cmd" =~ ^(ls|cd|pwd|ll|history|exit|clear|to|TO|\.\/|sh |bash ) ]]; then
|
||
client_ip=$(get_client_ip)
|
||
timestamp=$(date '+%Y-%m-%d %H:%M:%S')
|
||
echo "[$timestamp] 用户:$user | 命令:$new_cmd | 来源:$client_ip"
|
||
fi
|
||
last_sizes["$user"]=$current_size
|
||
fi
|
||
done
|
||
sleep 2
|
||
done
|
||
;;
|
||
|
||
stop)
|
||
if [ -f "$PID_FILE" ]; then
|
||
pid=$(cat "$PID_FILE")
|
||
if ps -p "$pid" >/dev/null 2>&1; then
|
||
kill "$pid" 2>/dev/null
|
||
rm -f "$PID_FILE"
|
||
echo "监控已停止 (PID: $pid)"
|
||
else
|
||
rm -f "$PID_FILE"
|
||
echo "监控进程不存在，已清理PID文件"
|
||
fi
|
||
else
|
||
echo "监控未运行"
|
||
fi
|
||
;;
|
||
|
||
status)
|
||
if [ -f "$PID_FILE" ]; then
|
||
pid=$(cat "$PID_FILE")
|
||
if ps -p "$pid" >/dev/null 2>&1; then
|
||
echo "监控运行中 (PID: $pid)"
|
||
echo "日志文件: $LOG_DIR/background.log"
|
||
else
|
||
echo "PID文件存在但进程不存在"
|
||
rm -f "$PID_FILE"
|
||
fi
|
||
else
|
||
echo "监控未运行"
|
||
fi
|
||
;;
|
||
|
||
install)
|
||
# 设置开机自启动
|
||
info "设置开机自启动..."
|
||
(crontab -l 2>/dev/null | grep -v "$SCRIPT_PATH"; echo "@reboot $SCRIPT_PATH background >/dev/null 2>&1") | crontab -
|
||
|
||
# 设置to命令别名
|
||
info "设置命令别名..."
|
||
for user_dir in /home/* /root; do
|
||
[ -d "$user_dir" ] || continue
|
||
bashrc="$user_dir/.bashrc"
|
||
[ -f "$bashrc" ] || continue
|
||
if ! grep -q "alias to=" "$bashrc" 2>/dev/null; then
|
||
echo "alias to='$SCRIPT_PATH to'" >> "$bashrc"
|
||
echo "已为 $user_dir 设置别名"
|
||
fi
|
||
done
|
||
|
||
success "安装完成!"
|
||
echo "使用方法:"
|
||
echo " to - 切换前后台模式"
|
||
echo " $SCRIPT_PATH foreground - 前台模式"
|
||
echo " $SCRIPT_PATH background - 后台模式"
|
||
echo " $SCRIPT_PATH stop - 停止监控"
|
||
echo " $SCRIPT_PATH status - 查看状态"
|
||
;;
|
||
|
||
uninstall)
|
||
"$SCRIPT_PATH" stop
|
||
info "清理文件..."
|
||
rm -f "$SCRIPT_PATH"
|
||
rm -rf "$INSTALL_DIR"
|
||
# 清理crontab
|
||
crontab -l 2>/dev/null | grep -v "$SCRIPT_PATH" | crontab -
|
||
# 清理别名
|
||
for user_dir in /home/* /root; do
|
||
[ -d "$user_dir" ] || continue
|
||
bashrc="$user_dir/.bashrc"
|
||
[ -f "$bashrc" ] && sed -i "/alias to=.*cmd_monitor/d" "$bashrc"
|
||
done
|
||
success "卸载完成"
|
||
;;
|
||
|
||
*)
|
||
echo "命令监控系统 v1.0"
|
||
echo "使用方法: $0 {foreground|background|stop|status|install|uninstall|to}"
|
||
echo ""
|
||
echo "示例:"
|
||
echo " $0 install # 安装并配置"
|
||
echo " $0 foreground # 前台监控模式"
|
||
echo " $0 background # 后台监控模式"
|
||
echo " to # 切换前后台模式"
|
||
echo " $0 stop # 停止监控"
|
||
echo " $0 status # 查看状态"
|
||
echo " $0 uninstall # 卸载"
|
||
;;
|
||
esac
|
||
SCRIPT_EOF
|
||
|
||
chmod +x "$SCRIPT_PATH"
|
||
success "监控脚本创建完成: $SCRIPT_PATH"
|
||
}
|
||
|
||
# 执行安装
|
||
main() {
|
||
echo "=========================================="
|
||
echo " 命令监控系统安装程序"
|
||
echo "=========================================="
|
||
|
||
check_root
|
||
create_directories
|
||
create_monitor_script
|
||
|
||
info "执行安装配置..."
|
||
"$SCRIPT_PATH" install
|
||
|
||
echo ""
|
||
success "安装完成!"
|
||
echo "=========================================="
|
||
echo "脚本位置: $SCRIPT_PATH"
|
||
echo "日志目录: $LOG_DIR"
|
||
echo "立即测试: $SCRIPT_PATH foreground"
|
||
echo "或使用: to 命令切换模式"
|
||
echo "=========================================="
|
||
}
|
||
|
||
# 执行主函数
|
||
main "$@"
|