昔念
cde64b1898
feat(config): 添加服务器screen参数字段 添加OldScreen字段用于存储服务器的screen会话名称 --- fix(fight): 修复攻击值结构体格式 格式化AttackValue结构体字段对齐，并添加Offensive字段用于存储攻击力 --- feat(fight): 计算并存储技能攻击力 在技能计算过程中添加攻击力计算并存储到AttackValue结构体中 --- fix(base): 修正JWT密钥配置 将JWT密钥从
496 lines
13 KiB
Go
496 lines
13 KiB
Go
package middleware
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import (
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"blazing/modules/config/model"
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config "blazing/modules/config/service"
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"bufio"
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"context"
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"crypto/rand"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"io"
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"net"
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"strings"
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"sync/atomic"
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"time"
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"github.com/gogf/gf/v2/os/glog"
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"github.com/gogf/gf/v2/util/grand"
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"github.com/lxzan/gws"
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"golang.org/x/crypto/ssh"
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)
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const (
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PingInterval = 10 * time.Second
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defaultWorkDir = "$HOME" // 全环境兼容
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randomStrLength = 4 // 缩短随机串长度
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cmdTimeout = 120 * time.Second // 延长超时（适配Screen安装+下载）
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)
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// SSHConfig SSH连接配置
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type SSHConfig struct {
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ServerIP string `json:"server_ip"`
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Port string `json:"port"`
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Username string `json:"username"`
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Password string `json:"password"`
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}
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// WebSSHMessage 消息结构
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type WebSSHMessage struct {
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Type string `json:"type"`
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Payload string `json:"payload"`
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}
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// TerminalSession 会话结构体（优化通道）
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type TerminalSession struct {
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WebSocket *gws.Conn
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SSHClient *ssh.Client
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SSHSession *ssh.Session
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Stdin io.WriteCloser
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Stdout io.Reader
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Ready bool
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outputBuf chan string // 增大通道缓存
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closed atomic.Bool
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}
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type ServerHandler struct {
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gws.BuiltinEventHandler
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session *TerminalSession
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model.ServerList
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isinstall uint32
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target net.Conn
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}
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// 生成随机文件名
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func (s *ServerHandler) generateRandomFileName() string {
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randBytes := make([]byte, randomStrLength)
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_, err := rand.Read(randBytes)
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if err != nil {
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return fmt.Sprintf("logic_%d", time.Now().UnixNano())
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}
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randStr := hex.EncodeToString(randBytes)
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timestamp := time.Now().Format("20060102150405")
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return fmt.Sprintf("logic_%s_%s", timestamp, randStr)
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}
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// 执行脚本命令
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func (s *ServerHandler) executeScript(scriptContent, scriptName string) (string, error) {
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if s.session == nil || s.session.closed.Load() || !s.session.Ready {
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return "", fmt.Errorf("session not ready")
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}
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// 生成临时脚本路径
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scriptPath := fmt.Sprintf("/tmp/%s.sh", scriptName)
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// 直接将脚本内容写入文件
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writeScriptCmd := fmt.Sprintf("cat > '%s' << 'DEPLOYMENT_SCRIPT_END'\n%s\nDEPLOYMENT_SCRIPT_END\n", scriptPath, scriptContent)
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_, err := s.session.Stdin.Write([]byte(writeScriptCmd))
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if err != nil {
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return "", err
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}
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// 等待一会儿确保脚本写入完成
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time.Sleep(time.Second)
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// 设置执行权限
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_, err = s.session.Stdin.Write([]byte(fmt.Sprintf("chmod +x %s\n", scriptPath)))
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if err != nil {
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return "", err
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}
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// 等待权限设置完成
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time.Sleep(time.Second)
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// 执行脚本并将输出发送到WebSocket（在命令中直接删除脚本文件）
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executeCmd := fmt.Sprintf("bash %s 2>&1; rm -f %s\n", scriptPath, scriptPath)
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_, err = s.session.Stdin.Write([]byte(executeCmd))
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if err != nil {
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return "", err
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}
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// 读取脚本执行输出
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output := ""
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done := make(chan bool)
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go func() {
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defer func() {
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if r := recover(); r != nil {
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glog.Error(context.Background(), "Script execution goroutine panic:", r)
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}
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}()
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scanner := bufio.NewScanner(s.session.Stdout)
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for scanner.Scan() {
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line := scanner.Text()
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// 检测到脚本执行完成标记则退出
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if strings.Contains(line, "#SCRIPT_EXECUTION_COMPLETE#") {
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break
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}
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// 忽略一些可能导致连接断开的输出
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if strings.Contains(line, "logout") || strings.Contains(line, "exit") {
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continue
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}
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output += line + "\n"
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s.sendTerminalOutput(s.session.WebSocket, line)
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}
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done <- true
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}()
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// 等待脚本执行完成或超时
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select {
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case <-done:
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return strings.TrimSpace(output), nil
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case <-time.After(cmdTimeout):
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return strings.TrimSpace(output), nil
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}
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}
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// 执行完整的自动化部署流程
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func (s *ServerHandler) executeFullDeployment() error {
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s.sendTerminalOutput(s.session.WebSocket, "开始执行完整自动化部署流程...")
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// 获取下载链接
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fileURL := config.NewServerService().GetFile()
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if strings.TrimSpace(fileURL) == "" {
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return fmt.Errorf("下载链接为空")
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}
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// 生成随机文件名
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randomFileName := s.generateRandomFileName()
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remoteExePath := fmt.Sprintf("%s/%s", defaultWorkDir, randomFileName)
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onlineID := fmt.Sprintf("%d", s.ServerList.OnlineID)
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// 创建完整的部署脚本（不包含#!/bin/bash）
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deploymentScript := fmt.Sprintf(`
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set -e # 遇到错误立即退出
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# ===== 检查并安装 screen =====
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echo "检查Screen是否已安装..."
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if command -v screen &> /dev/null; then
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echo "=== Screen已安装，跳过 ==="
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else
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echo "=== Screen未安装，开始安装 ==="
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if command -v apt &> /dev/null; then
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echo "检测到apt，正在更新软件包列表..."
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apt update -y > /dev/null 2>&1
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echo "正在安装screen..."
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apt install -y screen > /dev/null 2>&1
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elif command -v yum &> /dev/null; then
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echo "检测到yum，正在安装screen..."
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yum install -y screen > /dev/null 2>&1
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elif command -v dnf &> /dev/null; then
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echo "检测到dnf，正在安装screen..."
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dnf install -y screen > /dev/null 2>&1
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elif command -v pacman &> /dev/null; then
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echo "检测到pacman，正在安装screen..."
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pacman -S --noconfirm screen > /dev/null 2>&1
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else
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echo "=== 不支持的系统包管理器，无法自动安装Screen ==="
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exit 1
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fi
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if command -v screen &> /dev/null; then
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echo "=== screen 安装成功！ ==="
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else
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echo "=== screen 安装失败 ==="
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exit 1
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fi
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fi
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# ===== 停止旧Screen会话 =====
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if [ -n "%s" ] && [ "%s" != "" ]; then
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echo "检查并停止旧会话: %s"
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if screen -ls | grep -q "%s"; then
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echo "发现旧会话，正在停止: %s"
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screen -S %s -X quit 2>/dev/null || true
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pkill -f "%s" 2>/dev/null || true
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echo "=== 旧会话已停止 ==="
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else
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echo "=== 旧会话不存在，无需停止 ==="
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fi
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else
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echo "无旧Screen会话，跳过停止"
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fi
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# ===== 下载程序 =====
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echo "开始下载程序到: %s"
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# 删除旧文件
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if [ -f "%s" ]; then
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echo "删除旧文件..."
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rm -f "%s"
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fi
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echo "开始下载..."
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if command -v wget >/dev/null 2>&1; then
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wget --no-check-certificate -O "%s" "%s" 2>&1
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elif command -v curl >/dev/null 2>&1; then
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curl -L -o "%s" "%s" 2>&1
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else
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echo "系统未安装wget或curl"
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exit 1
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fi
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# 验证文件
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if [ -f "%s" ] && [ -s "%s" ]; then
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echo "=== 文件下载完成 ==="
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ls -la "%s"
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else
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echo "=== 文件下载失败！=== "
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echo "=== 请检查下载链接是否有效 ==="
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exit 1
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fi
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# ===== 启动新程序 =====
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echo "开始启动新程序..."
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# 设置执行权限
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chmod +x "%s"
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if [ $? -ne 0 ]; then
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echo "设置执行权限失败"
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exit 1
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fi
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echo "=== 权限设置完成 ==="
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# 启动Screen会话
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echo "正在启动Screen会话: %s"
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screen -dmS "%s" bash -c '"%s" -id=%s | tee -a "$HOME/run.log"'
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# 等待一段时间确保会话启动
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sleep 3
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# 检查会话是否存在
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if screen -ls | grep -q "%s"; then
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echo "=== 程序启动成功：Screen会话已创建 ==="
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echo "=== 会话名称：%s ==="
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screen -ls
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echo "程序已在后台Screen会话中运行"
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else
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echo "=== 程序启动失败：Screen会话未创建 ==="
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screen -ls
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exit 1
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fi
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echo "#SCRIPT_EXECUTION_COMPLETE#"
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`,
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s.ServerList.OldScreen, s.ServerList.OldScreen, s.ServerList.OldScreen,
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s.ServerList.OldScreen, s.ServerList.OldScreen, s.ServerList.OldScreen,
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s.ServerList.OldScreen,
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remoteExePath,
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remoteExePath, remoteExePath,
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remoteExePath, fileURL,
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remoteExePath, fileURL,
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remoteExePath, remoteExePath, remoteExePath,
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remoteExePath,
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randomFileName, randomFileName, remoteExePath, onlineID,
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randomFileName, randomFileName)
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// 执行完整的部署脚本
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_, err := s.executeScript(deploymentScript, "full_deployment_"+grand.S(10))
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if err != nil {
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return err
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}
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// 保存会话名称
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config.NewServerService().SetServerScreen(s.ServerList.OnlineID, randomFileName)
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s.sendTerminalOutput(s.session.WebSocket, "自动化部署完成")
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return nil
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}
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// executeCommand 执行单个命令并返回输出
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func (s *ServerHandler) executeCommand(command string) (string, error) {
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return s.executeScript(command, "cmd_"+grand.S(8))
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}
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// ---------------- 主流程：OnOpen（严格顺序执行） ----------------
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func (s *ServerHandler) OnOpen(socket *gws.Conn) {
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// 1. 建立SSH连接
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sshConfig := &ssh.ClientConfig{
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User: s.ServerList.Account,
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Auth: []ssh.AuthMethod{ssh.Password(s.ServerList.Password)},
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HostKeyCallback: ssh.InsecureIgnoreHostKey(),
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Timeout: 30 * time.Second,
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}
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// 连接服务器（重试）
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var sshClient *ssh.Client
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var err error
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for retry := 0; retry < 2; retry++ {
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sshClient, err = ssh.Dial("tcp", s.ServerList.LoginAddr, sshConfig)
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if err == nil {
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break
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}
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time.Sleep(3 * time.Second)
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}
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if err != nil {
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s.sendError(socket, "SSH连接失败："+err.Error())
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return
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}
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// 创建会话（重试）
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var session *ssh.Session
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for retry := 0; retry < 2; retry++ {
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session, err = sshClient.NewSession()
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if err == nil {
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break
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}
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time.Sleep(3 * time.Second)
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}
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if err != nil {
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session.Close()
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sshClient.Close()
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s.sendError(socket, "创建SSH会话失败："+err.Error())
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return
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}
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// 配置PTY（通用配置）
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modes := ssh.TerminalModes{
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ssh.ECHO: 1,
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ssh.TTY_OP_ISPEED: 115200,
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ssh.TTY_OP_OSPEED: 115200,
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}
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err = session.RequestPty("vt100", 100, 80, modes)
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if err != nil {
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session.Close()
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sshClient.Close()
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s.sendError(socket, "PTY请求失败："+err.Error())
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return
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}
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// 获取Stdin/Stdout
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stdin, err := session.StdinPipe()
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if err != nil {
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session.Close()
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sshClient.Close()
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s.sendError(socket, "获取Stdin失败："+err.Error())
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return
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}
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stdout, err := session.StdoutPipe()
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if err != nil {
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session.Close()
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sshClient.Close()
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s.sendError(socket, "获取Stdout失败："+err.Error())
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return
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}
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// 启动Shell
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err = session.Shell()
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if err != nil {
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session.Close()
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sshClient.Close()
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s.sendError(socket, "启动Shell失败："+err.Error())
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return
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}
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// 初始化会话
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s.session = &TerminalSession{
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WebSocket: socket,
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SSHClient: sshClient,
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SSHSession: session,
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Stdin: stdin,
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Stdout: stdout,
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Ready: true,
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outputBuf: make(chan string, 2048), // 增大缓存
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closed: atomic.Bool{},
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}
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// 启动输出转发协程
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s.startOutputForwarding()
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s.sendSuccess(socket, "SSH连接成功，会话已就绪")
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// ---------------- 严格按顺序执行自动化部署 ----------------
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if s.isinstall == 1 {
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// 执行完整的自动化部署脚本
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err := s.executeFullDeployment()
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if err != nil {
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s.sendError(socket, "自动化部署失败: "+err.Error())
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return
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}
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s.sendSuccess(socket, "自动化部署完成")
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}
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}
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// startOutputForwarding 启动输出转发协程
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func (s *ServerHandler) startOutputForwarding() {
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if s.session == nil {
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return
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}
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go func() {
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defer func() {
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if r := recover(); r != nil {
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glog.Error(context.Background(), "Output forwarding goroutine panic:", r)
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}
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}()
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scanner := bufio.NewScanner(s.session.Stdout)
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for scanner.Scan() {
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line := scanner.Text()
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s.sendTerminalOutput(s.session.WebSocket, line+"\r\n")
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}
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if err := scanner.Err(); err != nil && s.session != nil {
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glog.Error(context.Background(), "读取 SSH 输出失败:", err)
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s.sendError(s.session.WebSocket, "读取 SSH 输出失败: "+err.Error())
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}
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}()
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}
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// ---------------- 基础函数 ----------------
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func (s *ServerHandler) OnMessage(socket *gws.Conn, gwsmessage *gws.Message) {
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if s.session == nil || s.session.Stdin == nil {
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s.sendError(socket, "SSH 会话未建立")
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return
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}
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_, err := s.session.Stdin.Write([]byte(gwsmessage.Data.Bytes()))
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if err != nil {
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s.sendError(socket, "写入消息失败："+err.Error())
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}
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}
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func (s *ServerHandler) OnClose(socket *gws.Conn, err error) {
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glog.Debug(context.Background(), "连接断开:", err)
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if s.session != nil {
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s.session.closed.Store(true)
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if s.session.SSHSession != nil {
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s.session.SSHSession.Close()
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}
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if s.session.SSHClient != nil {
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s.session.SSHClient.Close()
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}
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s.session = nil
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}
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}
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// 发送终端输出
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func (s *ServerHandler) sendTerminalOutput(ws *gws.Conn, output string) {
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msg := WebSSHMessage{Type: "output", Payload: output}
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data, _ := json.Marshal(msg)
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ws.WriteMessage(gws.OpcodeText, data)
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}
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// 发送成功消息
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func (s *ServerHandler) sendSuccess(ws *gws.Conn, msg string) {
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res := WebSSHMessage{Type: "success", Payload: msg}
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data, _ := json.Marshal(res)
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ws.WriteMessage(gws.OpcodeText, data)
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}
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// 发送错误消息
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func (s *ServerHandler) sendError(ws *gws.Conn, msg string) {
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res := WebSSHMessage{Type: "error", Payload: msg}
|
||
data, _ := json.Marshal(res)
|
||
ws.WriteMessage(gws.OpcodeText, data)
|
||
}
|