GoLang常用代码片段

QQ群：397745473

判断是否包含某些字符

package main

import (
	"fmt"
	"strings"
)

func main() {
	fmt.Println(strings.Contains("seafood", "foo"))
	fmt.Println(strings.Contains("seafood", "bar"))
	fmt.Println(strings.Contains("seafood", ""))
	fmt.Println(strings.Contains("", ""))
}

https://golang.org/pkg/strings/#Contains

写文件

func writeDate(writeContent string) {
	resultFile := time.Now().Format("../result_20060102.txt")
	outFd, err := os.OpenFile(resultFile, os.O_APPEND|os.O_WRONLY, 0600)
	if err != nil {
		outFd, err = os.Create(resultFile)
		//return
	}
	defer outFd.Close()
	outWriter := bufio.NewWriter(outFd)
	_, _ = outWriter.WriteString(writeContent + "\n")
	_ = outWriter.Flush()

}

字符串分片

domain1 = strings.Split(domain, "//")[1]

http head请求

func Head(url string) (resp *http.Response, err error) {
	transCfg := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true}, // disable verify
	}

	Client := &http.Client{
		Timeout:   10 * time.Second,
		Transport: transCfg,
	}
	req, err := http.NewRequest("HEAD", url, nil)

	if err != nil {
		return nil, err
	}
	req.Header.Add("User-Agent", fake.UserAgent())
	resp, err2 := Client.Do(req)
	return resp, err2

}

http GET 请求

func Get(url string) (content []byte, header http.Header, err error) {
	transCfg := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true}, // disable verify
	}

	Client := &http.Client{
		Timeout:   10 * time.Second,
		Transport: transCfg,
	}
	req, err := http.NewRequest("GET", url, nil)

	if err != nil {
		return nil, nil, err
	}
	req.Header.Add("User-Agent", fake.UserAgent())
	resp, err2 := Client.Do(req)
	if err2 != nil {
		return nil, nil, err
	}
	defer resp.Body.Close()
	bytes, _ := ioutil.ReadAll(resp.Body)

	return bytes, resp.Header, nil
}

代理请求

func genIpaddr() string {
	rand.Seed(time.Now().Unix())
	ip := fmt.Sprintf("%d.%d.%d.%d", rand.Intn(255), rand.Intn(255), rand.Intn(255), rand.Intn(255))
	return ip
}

// func getUrlResponse(Referer, requestURL string) string {
func getUrlResponse(url string) (content []byte, header http.Header, err error) {
	//fmt.Println("requestURL:", requestURL)
	//fmt.Println("Referer:", Referer)
	randIp := genIpaddr()
	SocksProxy, _ := cfg.GetValue("scan", "SocksProxy") //SocksProxy
	proxy := func(_ *http.Request) (*url.URL, error) {
		return url.Parse(SocksProxy)
	}

	httpTransport := &http.Transport{
		//解决x509: certificate signed by unknown authority
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
		Proxy: proxy,
	}

	httpClient := &http.Client{
	    Timeout:   time.Second * 15, //超时时间
		Transport: httpTransport, //解决x509: certificate signed by unknown authority
	}

	// req, err := http.NewRequest("GET", requestURL, nil)
	req, err := http.NewRequest("GET", url, nil)

	if err != nil {
		return nil, nil, err
	}

	req.Header.Set("Connection", "keep-alive")
	req.Header.Set("User-Agent", fake.UserAgent())
	req.Header.Set("X-Forward-For", randIp)
	req.Header.Set("HTTP_X_FORWARD_FOR", randIp)
	req.Header.Set("HTTP_CLIENT_IP", randIp)
	req.Header.Set("X-Real-IP", randIp)
	req.Header.Set("REMOTE_ADDR", randIp)
	req.Header.Set("Referer", Referer)

	resp, err2 := Client.Do(req)
	if err2 != nil {
		return nil, nil, err
	}
	defer resp.Body.Close()

	bytes, _ := ioutil.ReadAll(resp.Body)
	return bytes, resp.Header, nil
}

异常处理

defer func() {
		if err := recover();err != nil {
			//fmt.Println("panic recover",err)
		}
	}()
	

QQ群：397745473