mirror of
https://github.com/shadow1ng/fscan.git
synced 2026-09-22 03:10:42 +08:00
refactor: 规范化文件命名
This commit is contained in:
ZacharyZcR
@@ -0,0 +1,274 @@
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package Common
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import (
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"bufio"
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"errors"
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"fmt"
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"math/rand"
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"net"
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"os"
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"regexp"
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"sort"
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"strconv"
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"strings"
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)
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var ParseIPErr = errors.New(" host parsing error\n" +
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"format: \n" +
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"192.168.1.1\n" +
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"192.168.1.1/8\n" +
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"192.168.1.1/16\n" +
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"192.168.1.1/24\n" +
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"192.168.1.1,192.168.1.2\n" +
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"192.168.1.1-192.168.255.255\n" +
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"192.168.1.1-255")
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func ParseIP(host string, filename string, nohosts ...string) (hosts []string, err error) {
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if filename == "" && strings.Contains(host, ":") {
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//192.168.0.0/16:80
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hostport := strings.Split(host, ":")
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if len(hostport) == 2 {
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host = hostport[0]
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hosts = ParseIPs(host)
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Ports = hostport[1]
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}
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} else {
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hosts = ParseIPs(host)
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if filename != "" {
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var filehost []string
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filehost, _ = Readipfile(filename)
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hosts = append(hosts, filehost...)
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}
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}
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if len(nohosts) > 0 {
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nohost := nohosts[0]
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if nohost != "" {
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nohosts := ParseIPs(nohost)
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if len(nohosts) > 0 {
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temp := map[string]struct{}{}
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for _, host := range hosts {
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temp[host] = struct{}{}
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}
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for _, host := range nohosts {
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delete(temp, host)
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}
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var newDatas []string
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for host := range temp {
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newDatas = append(newDatas, host)
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}
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hosts = newDatas
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sort.Strings(hosts)
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}
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}
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}
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hosts = RemoveDuplicate(hosts)
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if len(hosts) == 0 && len(HostPort) == 0 && host != "" && filename != "" {
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err = ParseIPErr
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}
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return
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}
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func ParseIPs(ip string) (hosts []string) {
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if strings.Contains(ip, ",") {
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IPList := strings.Split(ip, ",")
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var ips []string
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for _, ip := range IPList {
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ips = parseIP(ip)
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hosts = append(hosts, ips...)
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}
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} else {
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hosts = parseIP(ip)
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}
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return hosts
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}
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func parseIP(ip string) []string {
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reg := regexp.MustCompile(`[a-zA-Z]+`)
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switch {
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case ip == "192":
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return parseIP("192.168.0.0/8")
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case ip == "172":
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return parseIP("172.16.0.0/12")
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case ip == "10":
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return parseIP("10.0.0.0/8")
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// 扫描/8时,只扫网关和随机IP,避免扫描过多IP
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case strings.HasSuffix(ip, "/8"):
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return parseIP8(ip)
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//解析 /24 /16 /8 /xxx 等
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case strings.Contains(ip, "/"):
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return parseIP2(ip)
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//可能是域名,用lookup获取ip
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case reg.MatchString(ip):
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// _, err := net.LookupHost(ip)
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// if err != nil {
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// return nil
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// }
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return []string{ip}
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//192.168.1.1-192.168.1.100
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case strings.Contains(ip, "-"):
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return parseIP1(ip)
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//处理单个ip
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default:
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testIP := net.ParseIP(ip)
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if testIP == nil {
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return nil
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}
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return []string{ip}
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}
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}
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// 把 192.168.x.x/xx 转换成 192.168.x.x-192.168.x.x
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func parseIP2(host string) (hosts []string) {
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_, ipNet, err := net.ParseCIDR(host)
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if err != nil {
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return
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}
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hosts = parseIP1(IPRange(ipNet))
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return
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}
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// 解析ip段:
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//
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// 192.168.111.1-255
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// 192.168.111.1-192.168.112.255
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func parseIP1(ip string) []string {
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IPRange := strings.Split(ip, "-")
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testIP := net.ParseIP(IPRange[0])
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var AllIP []string
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if len(IPRange[1]) < 4 {
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Range, err := strconv.Atoi(IPRange[1])
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if testIP == nil || Range > 255 || err != nil {
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return nil
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}
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SplitIP := strings.Split(IPRange[0], ".")
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ip1, err1 := strconv.Atoi(SplitIP[3])
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ip2, err2 := strconv.Atoi(IPRange[1])
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PrefixIP := strings.Join(SplitIP[0:3], ".")
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if ip1 > ip2 || err1 != nil || err2 != nil {
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return nil
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}
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for i := ip1; i <= ip2; i++ {
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AllIP = append(AllIP, PrefixIP+"."+strconv.Itoa(i))
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}
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} else {
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SplitIP1 := strings.Split(IPRange[0], ".")
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SplitIP2 := strings.Split(IPRange[1], ".")
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if len(SplitIP1) != 4 || len(SplitIP2) != 4 {
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return nil
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}
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start, end := [4]int{}, [4]int{}
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for i := 0; i < 4; i++ {
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ip1, err1 := strconv.Atoi(SplitIP1[i])
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ip2, err2 := strconv.Atoi(SplitIP2[i])
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if ip1 > ip2 || err1 != nil || err2 != nil {
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return nil
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}
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start[i], end[i] = ip1, ip2
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}
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startNum := start[0]<<24 | start[1]<<16 | start[2]<<8 | start[3]
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endNum := end[0]<<24 | end[1]<<16 | end[2]<<8 | end[3]
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for num := startNum; num <= endNum; num++ {
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ip := strconv.Itoa((num>>24)&0xff) + "." + strconv.Itoa((num>>16)&0xff) + "." + strconv.Itoa((num>>8)&0xff) + "." + strconv.Itoa((num)&0xff)
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AllIP = append(AllIP, ip)
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}
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}
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return AllIP
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}
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// 获取起始IP、结束IP
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func IPRange(c *net.IPNet) string {
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start := c.IP.String()
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mask := c.Mask
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bcst := make(net.IP, len(c.IP))
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copy(bcst, c.IP)
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for i := 0; i < len(mask); i++ {
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ipIdx := len(bcst) - i - 1
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bcst[ipIdx] = c.IP[ipIdx] | ^mask[len(mask)-i-1]
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}
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end := bcst.String()
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return fmt.Sprintf("%s-%s", start, end) //返回用-表示的ip段,192.168.1.0-192.168.255.255
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}
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// 按行读ip
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func Readipfile(filename string) ([]string, error) {
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file, err := os.Open(filename)
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if err != nil {
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fmt.Printf("Open %s error, %v", filename, err)
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os.Exit(0)
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}
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defer file.Close()
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var content []string
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scanner := bufio.NewScanner(file)
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scanner.Split(bufio.ScanLines)
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if line != "" {
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text := strings.Split(line, ":")
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if len(text) == 2 {
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port := strings.Split(text[1], " ")[0]
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num, err := strconv.Atoi(port)
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if err != nil || (num < 1 || num > 65535) {
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continue
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}
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hosts := ParseIPs(text[0])
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for _, host := range hosts {
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HostPort = append(HostPort, fmt.Sprintf("%s:%s", host, port))
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}
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} else {
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host := ParseIPs(line)
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content = append(content, host...)
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}
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}
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}
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return content, nil
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}
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// 去重
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func RemoveDuplicate(old []string) []string {
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result := []string{}
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temp := map[string]struct{}{}
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for _, item := range old {
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if _, ok := temp[item]; !ok {
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temp[item] = struct{}{}
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result = append(result, item)
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}
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}
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return result
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}
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func parseIP8(ip string) []string {
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realIP := ip[:len(ip)-2]
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testIP := net.ParseIP(realIP)
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if testIP == nil {
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return nil
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}
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IPrange := strings.Split(ip, ".")[0]
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var AllIP []string
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for a := 0; a <= 255; a++ {
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for b := 0; b <= 255; b++ {
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 1))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 2))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 4))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 5))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(6, 55)))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(56, 100)))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(101, 150)))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(151, 200)))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(201, 253)))
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AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 254))
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}
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}
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return AllIP
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}
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func RandInt(min, max int) int {
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if min >= max || min == 0 || max == 0 {
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return max
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}
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return rand.Intn(max-min) + min
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}
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