first commit

internal/handler/findping.go

@@ -0,0 +1,84 @@
+package handler
+
+import (
+	"net"
+	"os/exec"
+	"sync"
+
+	"github.com/gin-gonic/gin"
+)
+
+func handleFindPing(c *gin.Context, url string, params map[string]interface{}) {
+	// url应该是CIDR格式，如 8.8.8.0/24
+	cidr := url
+	if cidrParam, ok := params["cidr"].(string); ok && cidrParam != "" {
+		cidr = cidrParam
+	}
+
+	// 解析CIDR
+	_, ipNet, err := net.ParseCIDR(cidr)
+	if err != nil {
+		c.JSON(200, gin.H{
+			"type":  "ceFindPing",
+			"error": "无效的CIDR格式",
+		})
+		return
+	}
+
+	// 生成IP列表
+	var ipList []string
+	for ip := ipNet.IP.Mask(ipNet.Mask); ipNet.Contains(ip); incIP(ip) {
+		ipList = append(ipList, ip.String())
+	}
+
+	// 移除网络地址和广播地址
+	if len(ipList) > 2 {
+		ipList = ipList[1 : len(ipList)-1]
+	}
+
+	// 并发ping测试
+	var wg sync.WaitGroup
+	var mu sync.Mutex
+	aliveIPs := make([]string, 0)
+
+	// 限制并发数
+	semaphore := make(chan struct{}, 50)
+
+	for _, ip := range ipList {
+		wg.Add(1)
+		semaphore <- struct{}{}
+		go func(ipAddr string) {
+			defer wg.Done()
+			defer func() { <-semaphore }()
+
+			// 执行ping（只ping一次，快速检测）
+			cmd := exec.Command("ping", "-c", "1", "-W", "1", ipAddr)
+			err := cmd.Run()
+			if err == nil {
+				mu.Lock()
+				aliveIPs = append(aliveIPs, ipAddr)
+				mu.Unlock()
+			}
+		}(ip)
+	}
+
+	wg.Wait()
+
+	c.JSON(200, gin.H{
+		"type":       "ceFindPing",
+		"cidr":       cidr,
+		"alive_ips":  aliveIPs,
+		"alive_count": len(aliveIPs),
+		"total_ips":  len(ipList),
+	})
+}
+
+func incIP(ip net.IP) {
+	for j := len(ip) - 1; j >= 0; j-- {
+		ip[j]++
+		if ip[j] > 0 {
+			break
+		}
+	}
+}
+