67 lines
2.1 KiB
Go
67 lines
2.1 KiB
Go
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package t3_union
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import (
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"encoding/json"
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"fmt"
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"math/rand"
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"sort"
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"strings"
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"time"
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"gitee.com/chengdu-lenntc/third-platform-sdk/util"
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)
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type Sign struct {
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AppKey string // 应用key
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AppSecret string // 应用秘钥
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}
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func newSign(appKey, appSecret string) *Sign {
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return &Sign{
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AppKey: appKey,
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AppSecret: appSecret,
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}
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}
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func (s *Sign) BuildHeader(methodType string, uri string, data map[string]any) map[string]string {
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// 随机数
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tn := time.Now()
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src := rand.NewSource(tn.Unix())
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randNum := rand.New(src).Int31n(10000)
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nonce := util.Md5String(fmt.Sprintf("%d_nonce_%d", tn.UnixMicro(), randNum))
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headers := map[string]string{
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XT3Nonce: nonce, // 请求标识，10分钟内保证唯一性
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XT3Timestamp: fmt.Sprintf("%d", time.Now().UnixMilli()), // 请求发起时间戳(毫秒)，有效时1分钟
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XT3Version: "V1", // 版本（固定值传"V1"）
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XT3Key: s.AppKey, // 使用前联系分配账号（APP Key）
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XT3SignatureMethod: "MD5", // 固定值传 "MD5"
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}
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headers[XT3Signature] = s.GetSign(methodType, uri, headers, data) // 在获得签名后赋值
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headers[XT3SignatureHeaders] = "x-t3-nonce,x-t3-timestamp,x-t3-version,x-t3-key,x-t3-signature-method" // 固定传值
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return headers
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}
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func (s *Sign) GetSign(methodType string, uri string, headers map[string]string, data map[string]any) string {
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// key排序
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arr := sort.StringSlice{}
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for k := range headers {
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if k != XT3Signature && k != XT3SignatureHeaders {
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arr = append(arr, k)
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}
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}
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arr.Sort()
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// 参数拼接
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var build strings.Builder
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build.WriteString(fmt.Sprintf("%s%s", methodType, uri))
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for _, k := range arr {
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build.WriteString(fmt.Sprintf("%s:%v", k, headers[k]))
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}
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// 请求参数body转json string后用MD5进行加密
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dataByte, _ := json.Marshal(data)
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build.WriteString(util.Md5String(string(dataByte)))
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build.WriteString(s.AppSecret)
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return util.Md5String(build.String())
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}
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