package Plugins

import (
	"fmt"
	"github.com/gocql/gocql"
	"github.com/shadow1ng/fscan/Common"
	"strconv"
	"strings"
	"time"
)

func CassandraScan(info *Common.HostInfo) (tmperr error) {
	if Common.DisableBrute {
		return
	}

	starttime := time.Now().Unix()

	// 首先测试无认证访问
	flag, err := CassandraConn(info, "", "")
	if flag && err == nil {
		return err
	}

	// 尝试用户名密码组合
	for _, user := range Common.Userdict["cassandra"] {
		for _, pass := range Common.Passwords {
			pass = strings.Replace(pass, "{user}", user, -1)

			flag, err := CassandraConn(info, user, pass)
			if flag && err == nil {
				return err
			}

			errlog := fmt.Sprintf("[-] Cassandra服务 %v:%v 尝试失败 用户名: %v 密码: %v 错误: %v", info.Host, info.Ports, user, pass, err)
			Common.LogError(errlog)
			tmperr = err

			if Common.CheckErrs(err) {
				return err
			}

			if time.Now().Unix()-starttime > (int64(len(Common.Userdict["cassandra"])*len(Common.Passwords)) * Common.Timeout) {
				return err
			}
		}
	}
	return tmperr
}

func CassandraConn(info *Common.HostInfo, user string, pass string) (bool, error) {
	host, port := info.Host, info.Ports
	timeout := time.Duration(Common.Timeout) * time.Second

	cluster := gocql.NewCluster(host)
	cluster.Port, _ = strconv.Atoi(port)
	cluster.Timeout = timeout
	cluster.ProtoVersion = 4 // 指定协议版本
	cluster.Consistency = gocql.One

	if user != "" || pass != "" {
		cluster.Authenticator = gocql.PasswordAuthenticator{
			Username: user,
			Password: pass,
		}
	}

	// 增加重试机制
	cluster.RetryPolicy = &gocql.SimpleRetryPolicy{NumRetries: 3}

	session, err := cluster.CreateSession()
	if err != nil {
		return false, err
	}
	defer session.Close()

	// 使用更简单的查询测试连接
	var version string
	if err := session.Query("SELECT peer FROM system.peers").Scan(&version); err != nil {
		if err := session.Query("SELECT now() FROM system.local").Scan(&version); err != nil {
			return false, err
		}
	}

	result := fmt.Sprintf("[+] Cassandra服务 %v:%v ", host, port)
	if user != "" {
		result += fmt.Sprintf("爆破成功 用户名: %v 密码: %v", user, pass)
	} else {
		result += "无需认证即可访问"
	}
	Common.LogSuccess(result)

	return true, nil
}