85 lines
1.5 KiB
Go
85 lines
1.5 KiB
Go
package handler
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import (
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"net"
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"os/exec"
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"sync"
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"github.com/gin-gonic/gin"
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)
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func handleFindPing(c *gin.Context, url string, params map[string]interface{}) {
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// url应该是CIDR格式，如 8.8.8.0/24
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cidr := url
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if cidrParam, ok := params["cidr"].(string); ok && cidrParam != "" {
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cidr = cidrParam
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}
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// 解析CIDR
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_, ipNet, err := net.ParseCIDR(cidr)
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if err != nil {
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c.JSON(200, gin.H{
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"type": "ceFindPing",
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"error": "无效的CIDR格式",
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})
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return
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}
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// 生成IP列表
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var ipList []string
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for ip := ipNet.IP.Mask(ipNet.Mask); ipNet.Contains(ip); incIP(ip) {
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ipList = append(ipList, ip.String())
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}
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// 移除网络地址和广播地址
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if len(ipList) > 2 {
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ipList = ipList[1 : len(ipList)-1]
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}
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// 并发ping测试
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var wg sync.WaitGroup
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var mu sync.Mutex
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aliveIPs := make([]string, 0)
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// 限制并发数
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semaphore := make(chan struct{}, 50)
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for _, ip := range ipList {
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wg.Add(1)
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semaphore <- struct{}{}
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go func(ipAddr string) {
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defer wg.Done()
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defer func() { <-semaphore }()
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// 执行ping（只ping一次，快速检测）
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cmd := exec.Command("ping", "-c", "1", "-W", "1", ipAddr)
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err := cmd.Run()
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if err == nil {
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mu.Lock()
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aliveIPs = append(aliveIPs, ipAddr)
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mu.Unlock()
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}
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}(ip)
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}
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wg.Wait()
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c.JSON(200, gin.H{
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"type": "ceFindPing",
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"cidr": cidr,
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"alive_ips": aliveIPs,
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"alive_count": len(aliveIPs),
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"total_ips": len(ipList),
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})
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}
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func incIP(ip net.IP) {
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for j := len(ip) - 1; j >= 0; j-- {
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ip[j]++
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if ip[j] > 0 {
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break
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}
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}
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}
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