91 lines
2.0 KiB
Go
91 lines
2.0 KiB
Go
package monitor
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import (
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"encoding/json"
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"environmentCaptureAgent/pkg/utils"
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"fmt"
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"io/ioutil"
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"net/http"
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"strings"
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"time"
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)
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type geoIP struct {
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CountryCode string `json:"country_code,omitempty"`
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IP string `json:"ip,omitempty"`
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Query string `json:"query,omitempty"`
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}
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var (
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geoIPApiList = []string{
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"https://api.ip.sb/geoip",
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"https://ip.seeip.org/geoip",
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"https://ipapi.co/json",
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"https://freegeoip.app/json/",
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"http://ip-api.com/json/",
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"https://extreme-ip-lookup.com/json/",
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}
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cachedIP, cachedCountry string
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httpClientV4 = utils.NewSingleStackHTTPClient(time.Second*20, time.Second*5, time.Second*10, false)
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httpClientV6 = utils.NewSingleStackHTTPClient(time.Second*20, time.Second*5, time.Second*10, true)
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)
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func UpdateIP() {
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for {
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ipv4 := fetchGeoIP(geoIPApiList, false)
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ipv6 := fetchGeoIP(geoIPApiList, true)
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if ipv4.IP == "" && ipv6.IP == "" {
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time.Sleep(time.Minute)
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continue
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}
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if ipv4.IP == "" || ipv6.IP == "" {
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cachedIP = fmt.Sprintf("%s%s", ipv4.IP, ipv6.IP)
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} else {
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cachedIP = fmt.Sprintf("%s/%s", ipv4.IP, ipv6.IP)
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}
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if ipv4.CountryCode != "" {
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cachedCountry = ipv4.CountryCode
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} else if ipv6.CountryCode != "" {
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cachedCountry = ipv6.CountryCode
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}
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time.Sleep(time.Minute * 30)
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}
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}
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func fetchGeoIP(servers []string, isV6 bool) geoIP {
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var ip geoIP
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var resp *http.Response
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var err error
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for i := 0; i < len(servers); i++ {
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if isV6 {
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resp, err = httpClientV6.Get(servers[i])
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} else {
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resp, err = httpClientV4.Get(servers[i])
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}
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if err == nil {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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continue
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}
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resp.Body.Close()
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err = json.Unmarshal(body, &ip)
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if err != nil {
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continue
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}
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if ip.IP == "" && ip.Query != "" {
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ip.IP = ip.Query
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}
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// 没取到 v6 IP
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if isV6 && !strings.Contains(ip.IP, ":") {
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continue
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}
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// 没取到 v4 IP
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if !isV6 && !strings.Contains(ip.IP, ".") {
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continue
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}
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return ip
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}
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}
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return ip
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}
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