82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
package task
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import (
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"fmt"
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"github.com/schollz/progressbar/v3"
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"net"
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"sync"
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"time"
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)
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var (
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PingTimes int
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Routines int
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TcpPort int
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TcpConnectTimeOut = time.Second * 1
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)
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type IPDelay struct {
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IP *net.IPAddr
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Delay time.Duration
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DownloadSpeed float64
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}
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func (p *IPRangeList) Run() *IPRangeList {
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var wg sync.WaitGroup
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ch := make(chan struct{}, Routines)
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fmt.Println("正在测试IP", "协议为:", "TCP", "端口为:", TcpPort, "并发数为:", Routines, "Ping次数为:", PingTimes)
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// 创建进度条
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bar := progressbar.NewOptions(len(p.Ips),
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progressbar.OptionSetWidth(50),
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progressbar.OptionSetDescription("测试IP中"),
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progressbar.OptionShowCount(),
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progressbar.OptionShowIts(),
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)
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for _, ip := range p.Ips {
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wg.Add(1)
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ch <- struct{}{} // 控制最大并发数
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go func(ip *net.IPAddr) {
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defer wg.Done()
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defer func() { <-ch }() // 释放并发控制
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success, duration := TCPing(ip)
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if success && duration > 0 {
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p.Delays = append(p.Delays, IPDelay{IP: ip, Delay: duration, DownloadSpeed: 0})
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}
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err := bar.Add(1)
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if err != nil {
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return
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} // 更新进度条
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}(ip)
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}
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wg.Wait()
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err := bar.Finish()
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if err != nil {
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return nil
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}
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fmt.Printf("调用成功，可用的IP数量: %d\n", len(p.Delays))
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return p
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}
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// TCPing 通过TCP连接测试IP是否可用
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func TCPing(ip *net.IPAddr) (bool, time.Duration) {
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startTime := time.Now()
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var fullAddress string
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if IsIpv4(ip.String()) {
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fullAddress = fmt.Sprintf("%s:%d", ip.String(), TcpPort)
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} else {
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fullAddress = fmt.Sprintf("[%s]:%d", ip.String(), TcpPort)
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}
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conn, err := net.DialTimeout("tcp", fullAddress, TcpConnectTimeOut)
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if err != nil {
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return false, 0
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}
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defer func(conn net.Conn) {
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err := conn.Close()
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if err != nil {
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}
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}(conn)
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duration := time.Since(startTime)
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return true, duration
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}
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