golang阿里云api请求鉴权

wh1314 · · 908 次点击 · · 开始浏览

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package main

import (
    "crypto/hmac"
    "crypto/sha256"
    "encoding/base64"
    "fmt"
    "io/ioutil"
    "net/http"
    "net/url"
    "time"
)

func main() {
    //action对应的参数
    params := make(map[string]string)
    params["Ip"] = "10.10.10.22"
    params["Lang"] = "en"
    DoAliReq(params)
}

func DoAliReq(uris map[string]string) {
    var urlS url.URL
    q := urlS.Query()
    q.Add("AccessKeyId", "accesskeyid")
    q.Add("Timestamp", time.Now().UTC().Format("2006-01-02T15:04:05Z"))
    q.Add("Format", "json")
    q.Add("SignatureMethod", "HMAC-SHA256")
    q.Add("SignatureVersion", "1.0")
    q.Add("SignatureNonce", "randommsgid")
    q.Add("RegionId", "cn-hangzhou")
    q.Add("Version", "2020-01-01")
    q.Add("Action", "DescribeIpv4Location") //具体业务action
    for k, v := range uris {
        q.Add(k, v)
    }
    sigStr := q.Encode()
    strtosign := "GET" + "&" + url.QueryEscape("/") + "&" + url.QueryEscape(sigStr)
    sign := Hmacsha256(strtosign, fmt.Sprintf("%v&", "AliKeySecret"))
    q.Add("Signature", sign)
    url := fmt.Sprintf("http://geoip.aliyuncs.com/?%s", q.Encode())
    req, err := http.NewRequest("GET", url, nil)
    if nil != err {
        fmt.Println(err)
        return
    }
    client := http.DefaultClient
    resp, err := client.Do(req)
    if nil != err {
        fmt.Println(err)
        return
    }
    defer resp.Body.Close()
    respBody, err := ioutil.ReadAll(resp.Body)
    if nil != err {
        fmt.Println(err)
        return
    }
    fmt.Println(string(respBody))
    return
}

func Hmacsha256(data, key string) (sig string) {
    h := hmac.New(sha256.New, []byte(key))
    h.Write([]byte(data))
    sig = base64.StdEncoding.EncodeToString(h.Sum(nil))
    return
}

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