tipdw/tipdw.go

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package tipdw
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
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"sync"
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"time"
)
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var (
client = &http.Client{Timeout: 5 * time.Second}
ipCache = &sync.Map{}
)
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type Body struct {
Status int `json:"status"` // 状态码0为正常其它为异常
Message string `json:"message"` // 对status的描述
Result Result `json:"result"` // IP定位结果
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}
type Result struct {
IP string `json:"ip"` // 用于定位的IP地址
AdInfo AdInfo `json:"ad_info"` // 定位行政区划信息
Location Location `json:"location"` // 定位坐标
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}
type AdInfo struct {
Nation string `json:"nation"` // 国家
Province string `json:"province"` // 省
City string `json:"city"` // 市
District string `json:"district"` // 区
Adcode int `json:"adcode"` // 行政区划代码
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}
type Location struct {
Lat float64 `json:"lat"` // 纬度
Lng float64 `json:"lng"` // 经度
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}
// QueryIP 使用腾讯位置服务查询IP
func QueryIP(sk string, key string, ip string) (result Result, err error) {
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v, ok := ipCache.Load(ip)
if ok {
result = v.(Result)
return
}
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arg := &reqLBS{
SK: sk,
Path: "/ws/location/v1/ip",
Args: map[string]string{
"ip": ip,
"key": key,
},
}
req, err := http.NewRequest(http.MethodGet, fmt.Sprintf("%s?%s", "https://apis.map.qq.com/ws/location/v1/ip", arg.Encode()), nil)
if err != nil {
return
}
resp, err := client.Do(req)
if err != nil {
return
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
var bodyUnmarshal Body
err = json.Unmarshal(body, &bodyUnmarshal)
if err != nil {
return
}
if bodyUnmarshal.Status != 0 {
err = fmt.Errorf("resp code is %d, body is %s", bodyUnmarshal.Status, body)
return
}
result = bodyUnmarshal.Result
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ipCache.Store(ip, bodyUnmarshal.Result)
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return
}