70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
package aliyun
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import (
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"crypto/hmac"
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"crypto/sha1"
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"encoding/base64"
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"encoding/json"
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"hospital-open-api/config"
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"strings"
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"time"
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)
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// GetOssSignResponse 获取oss签名返回值
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type GetOssSignResponse struct {
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AccessId string `json:"access_id"` // 主键id
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Host string `json:"host"`
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Policy string `json:"policy"`
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Signature string `json:"signature"`
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Expire int64 `json:"expire"`
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Callback string `json:"callback"`
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Dir string `json:"dir"`
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}
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// GetOssSign 获取oss签名
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func GetOssSign(dir string) (*GetOssSignResponse, error) {
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// Endpoint := config.C.Oss.OssEndpoint
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// accessKey := config.C.Oss.OssAccessKey
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// accessSecret := config.C.Oss.OssAccessKeySecret
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// client, err := oss.New(Endpoint, accessKey, accessSecret)
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// if err != nil {
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// return nil, err
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// }
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//
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// bucket, err := client.Bucket(viper.GetString("aliyun.Bucket"))
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// if err != nil {
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// return "", err
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// }
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now := time.Now()
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expire := 30 // 设置该policy超时时间是30s，即这个policy过了这个有效时间，将不能访问。
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end := now.Add(time.Second * time.Duration(expire))
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expiration := strings.Replace(end.Format("2006-01-02T15:04:05.000Z"), "+00:00", ".000Z", 1)
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start := []interface{}{"starts-with", "$key", dir}
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conditions := [][]interface{}{start}
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arr := map[string]interface{}{
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"expiration": expiration,
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"conditions": conditions,
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}
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policy, _ := json.Marshal(arr)
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base64Policy := base64.StdEncoding.EncodeToString(policy)
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stringToSign := base64Policy
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h := hmac.New(sha1.New, []byte(config.C.Oss.OssAccessKeySecret))
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h.Write([]byte(stringToSign))
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signature := base64.StdEncoding.EncodeToString(h.Sum(nil))
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response := &GetOssSignResponse{
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AccessId: config.C.Oss.OssAccessKey,
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Host: config.C.Oss.OssCustomDomainName,
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Policy: base64Policy,
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Signature: signature,
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Expire: end.Unix(),
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Callback: "",
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Dir: dir,
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}
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return response, nil
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}
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