265 lines
9.3 KiB
Plaintext
265 lines
9.3 KiB
Plaintext
# 创建安装目录和脚本
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mkdir -p /root/monitor
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cat > /root/monitor/cmd_monitor.sh << 'EOF'
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#!/bin/bash
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INSTALL_DIR="/root/monitor"
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SCRIPT_PATH="$INSTALL_DIR/cmd_monitor.sh"
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LOG_DIR="/root/command_logs"
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PID_FILE="/tmp/cmd_monitor.pid"
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# 获取客户端IP
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get_client_ip() {
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local ip="unknown"
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[ -n "$SSH_CLIENT" ] && ip=$(echo "$SSH_CLIENT" | awk '{print $1}')
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[ "$ip" = "unknown" ] && [ -n "$SSH_CONNECTION" ] && ip=$(echo "$SSH_CONNECTION" | awk '{print $1}')
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echo "$ip"
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}
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# 检查to命令
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if [ "$1" = "to" ]; then
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if [ -f "$PID_FILE" ] && ps -p $(cat "$PID_FILE") >/dev/null 2>&1; then
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echo "切换到前台模式..."
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kill $(cat "$PID_FILE") 2>/dev/null
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rm -f "$PID_FILE"
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exec "$SCRIPT_PATH" foreground
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else
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echo "切换到后台模式..."
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exec "$SCRIPT_PATH" background
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fi
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exit 0
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fi
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case "$1" in
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background|start)
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# 设置实时history
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for user_dir in /home/* /root; do
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[ -d "$user_dir" ] || continue
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bashrc="$user_dir/.bashrc"
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[ -f "$bashrc" ] || continue
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if ! grep -q "PROMPT_COMMAND.*history" "$bashrc" 2>/dev/null; then
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echo 'export PROMPT_COMMAND="history -a; history -c; history -r"' >> "$bashrc"
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echo "已为 $user_dir 设置实时history"
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fi
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done
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# 后台启动
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(
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echo "=== 后台监控启动: $(date) ===" >> "$LOG_DIR/monitor.log"
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declare -A last_sizes
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# 初始化文件大小
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for user_dir in /home/* /root; do
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[ -d "$user_dir" ] || continue
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user=$(basename "$user_dir")
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history_file="$user_dir/.bash_history"
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[ -f "$history_file" ] && last_sizes["$user"]=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
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done
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while true; do
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for user_dir in /home/* /root; do
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[ -d "$user_dir" ] || continue
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user=$(basename "$user_dir")
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history_file="$user_dir/.bash_history"
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[ -f "$history_file" ] || continue
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current_size=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
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last_size=${last_sizes["$user"]:-0}
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if [ "$current_size" -gt "$last_size" ]; then
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new_cmd=$(tail -n 1 "$history_file" 2>/dev/null | sed 's/^[ \t]*//;s/[ \t]*$//')
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if [ -n "$new_cmd" ] && [ ${#new_cmd} -gt 1 ]; then
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# 过滤简单命令
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case "$new_cmd" in
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ls|cd|pwd|ll|history|exit|clear|to|"."|"..")
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continue
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;;
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*)
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client_ip=$(get_client_ip)
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timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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log_entry="[$timestamp] 用户:$user | 命令:$new_cmd | 来源:$client_ip"
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echo "$log_entry" >> "$LOG_DIR/monitor.log"
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;;
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esac
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fi
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last_sizes["$user"]=$current_size
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fi
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done
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sleep 2
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done
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) &
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echo $! > "$PID_FILE"
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echo "✅ 后台监控已启动 (PID: $!)"
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echo "📝 日志文件: $LOG_DIR/monitor.log"
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;;
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foreground)
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echo "🔍 前台监控模式启动..."
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echo "💡 输入 'to' 切换到后台模式"
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echo "⏹️ 按 Ctrl+C 停止监控"
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echo "================================"
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# 设置信号处理
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trap 'echo -e "\n🛑 停止监控"; exit 0' INT TERM
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declare -A last_sizes
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# 初始化文件大小
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for user_dir in /home/* /root; do
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[ -d "$user_dir" ] || continue
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user=$(basename "$user_dir")
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history_file="$user_dir/.bash_history"
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[ -f "$history_file" ] && last_sizes["$user"]=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
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done
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while true; do
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# 检测to命令输入（非阻塞读取）
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if read -t 0.5 -n 2 input 2>/dev/null; then
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if [ "$input" = "to" ]; then
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echo "🔄 切换到后台模式..."
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"$SCRIPT_PATH" background
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exit 0
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fi
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fi
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# 监控命令
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for user_dir in /home/* /root; do
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[ -d "$user_dir" ] || continue
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user=$(basename "$user_dir")
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history_file="$user_dir/.bash_history"
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[ -f "$history_file" ] || continue
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current_size=$(stat -c%s "$history_file" 2>/dev/null || echo 0)
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last_size=${last_sizes["$user"]:-0}
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if [ "$current_size" -gt "$last_size" ]; then
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new_cmd=$(tail -n 1 "$history_file" 2>/dev/null | sed 's/^[ \t]*//;s/[ \t]*$//')
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if [ -n "$new_cmd" ] && [ ${#new_cmd} -gt 1 ]; then
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# 过滤简单命令
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case "$new_cmd" in
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ls|cd|pwd|ll|history|exit|clear|to|"."|"..")
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continue
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;;
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*)
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client_ip=$(get_client_ip)
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timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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echo "[$timestamp] 用户:$user | 命令:$new_cmd | 来源:$client_ip"
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;;
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esac
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fi
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last_sizes["$user"]=$current_size
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fi
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done
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sleep 2
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done
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;;
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stop)
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if [ -f "$PID_FILE" ]; then
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pid=$(cat "$PID_FILE")
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if ps -p "$pid" >/dev/null 2>&1; then
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kill "$pid" 2>/dev/null
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rm -f "$PID_FILE"
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echo "✅ 监控已停止 (PID: $pid)"
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else
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rm -f "$PID_FILE"
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echo "⚠️ 监控进程不存在，已清理PID文件"
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fi
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else
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echo "ℹ️ 监控未运行"
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fi
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;;
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status)
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if [ -f "$PID_FILE" ]; then
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pid=$(cat "$PID_FILE")
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if ps -p "$pid" >/dev/null 2>&1; then
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echo "✅ 监控运行中 (PID: $pid)"
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echo "📝 日志文件: $LOG_DIR/monitor.log"
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else
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echo "❌ PID文件存在但进程不存在"
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rm -f "$PID_FILE"
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fi
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else
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echo "❌ 监控未运行"
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fi
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;;
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install)
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# 创建日志目录
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mkdir -p "$LOG_DIR"
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# 设置开机自启动
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echo "🔧 设置开机自启动..."
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(crontab -l 2>/dev/null | grep -v "$SCRIPT_PATH"; echo "@reboot $SCRIPT_PATH background >/dev/null 2>&1") | crontab -
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# 设置to命令别名
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echo "🔧 设置命令别名..."
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for user_dir in /home/* /root; do
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[ -d "$user_dir" ] || continue
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bashrc="$user_dir/.bashrc"
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[ -f "$bashrc" ] || continue
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if ! grep -q "alias to=" "$bashrc" 2>/dev/null; then
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echo "alias to='$SCRIPT_PATH to'" >> "$bashrc"
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echo "✅ 已为 $user_dir 设置别名"
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fi
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done
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echo ""
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echo "🎉 安装完成!"
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echo "========================"
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echo "立即使用:"
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echo " to - 切换前后台模式"
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echo " $SCRIPT_PATH foreground - 前台模式"
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echo " $SCRIPT_PATH background - 后台模式"
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echo " $SCRIPT_PATH stop - 停止监控"
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echo " $SCRIPT_PATH status - 查看状态"
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echo ""
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echo "请运行: source ~/.bashrc"
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;;
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logs)
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if [ -f "$LOG_DIR/monitor.log" ]; then
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tail -f "$LOG_DIR/monitor.log"
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else
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echo "日志文件不存在: $LOG_DIR/monitor.log"
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fi
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;;
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*)
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echo "命令监控系统"
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echo "========================"
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echo "使用方法: $0 {foreground|background|stop|status|install|logs|to}"
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echo ""
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echo "命令说明:"
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echo " install - 安装并配置系统"
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echo " foreground - 前台监控模式"
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echo " background - 后台监控模式"
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echo " to - 切换前后台模式"
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echo " stop - 停止监控"
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echo " status - 查看状态"
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echo " logs - 查看实时日志"
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echo ""
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echo "安装后直接使用 'to' 命令切换模式"
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;;
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esac
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EOF
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# 给脚本执行权限
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chmod +x /root/monitor/cmd_monitor.sh
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# 创建日志目录
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mkdir -p /root/command_logs
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# 执行安装
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echo "开始安装监控系统..."
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/root/monitor/cmd_monitor.sh install
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# 重新加载bash配置
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source ~/.bashrc
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echo ""
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echo "✅ 安装完成！"
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echo "💡 现在可以测试: to"
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