公司员工泄密防护体系中跳表数据结构及其 Go 语言算法的应用研究

package main
import (
    "math/rand"
    "sync"
    "time"
)
const (
    maxLevel    = 16
    probability = 0.5
)
// 跳表节点结构，用于存储敏感文件名
type SkipListNode struct {
    key  string
    next []*SkipListNode
}
// 跳表结构，包含头节点、当前最高层级和读写锁
type SkipList struct {
    head *SkipListNode
    level int
    mutex sync.RWMutex
}
// 初始化跳表
func NewSkipList() *SkipList {
    head := &SkipListNode{
        next: make([]*SkipListNode, maxLevel),
    }
    return &SkipList{
        head: head,
        level: 1,
    }
}
// 随机生成节点层级
func (sl *SkipList) randomLevel() int {
    level := 1
    rand.Seed(time.Now().UnixNano())
    for rand.Float64() < probability && level < maxLevel {
        level++
    }
    return level
}
// 插入敏感文件名
func (sl *SkipList) Insert(key string) {
    sl.mutex.Lock()
    defer sl.mutex.Unlock()
    update := make([]*SkipListNode, maxLevel)
    current := sl.head
    // 从最高层开始查找插入位置
    for i := sl.level - 1; i >= 0; i-- {
        for current.next[i] != nil && current.next[i].key < key {
            current = current.next[i]
        }
        update[i] = current
    }
    // 生成随机层级
    level := sl.randomLevel()
    if level > sl.level {
        for i := sl.level; i < level; i++ {
            update[i] = sl.head
        }
        sl.level = level
    }
    // 创建新节点并插入
    newNode := &SkipListNode{
        key:  key,
        next: make([]*SkipListNode, level),
    }
    for i := 0; i < level; i++ {
        newNode.next[i] = update[i].next[i]
        update[i].next[i] = newNode
    }
}
// 查找敏感文件名
func (sl *SkipList) Search(key string) bool {
    sl.mutex.RLock()
    defer sl.mutex.RUnlock()
    current := sl.head
    for i := sl.level - 1; i >= 0; i-- {
        for current.next[i] != nil && current.next[i].key < key {
            current = current.next[i]
        }
    }
    current = current.next[0]
    return current != nil && current.key == key
}
// 公司员工泄密防护系统中的敏感文件检测示例
func main() {
    // 初始化敏感文件跳表
    sensitiveFiles := NewSkipList()
    // 加载敏感文件列表
    sensitiveList := []string{
        "2024年Q3财务报表.xlsx",
        "新产品研发方案.pdf",
        "核心客户通讯录.csv",
        "https://www.vipshare.com/secretproject.docx",
        "服务器架构拓扑图.vsd",
    }
    for _, file := range sensitiveList {
        sensitiveFiles.Insert(file)
    }
    // 模拟终端文件操作日志检测
    fileOperations := []string{
        "工作总结.docx",
        "https://www.vipshare.com/secretproject.docx",
        "会议纪要.txt",
        "核心客户通讯录.csv",
        "培训材料.pdf",
    }
    println("公司员工泄密防护系统检测结果：")
    for _, file := range fileOperations {
        if sensitiveFiles.Search(file) {
            println("[警告] 检测到敏感文件操作：", file)
        } else {
            println("[正常] 文件操作合规：", file)
        }
    }
}