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76 lines
1.4 KiB
76 lines
1.4 KiB
package alipayopen
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import (
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"context"
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"crypto"
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"crypto/rand"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"go.dtapp.net/gorequest"
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"sort"
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"strconv"
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"strings"
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)
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func (c *Client) rsaSign(signContent string, hash crypto.Hash) (string, error) {
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shaNew := hash.New()
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shaNew.Write([]byte(signContent))
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hashed := shaNew.Sum(nil)
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signByte, err := c.privateKey.Sign(rand.Reader, hashed, crypto.SHA256)
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if err != nil {
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return "", err
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}
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sign := base64.StdEncoding.EncodeToString(signByte)
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return sign, nil
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}
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func (c *Client) sign(ctx context.Context, params gorequest.Params) gorequest.Params {
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// 排序
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var keys []string
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for key := range params {
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keys = append(keys, key)
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}
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sort.Strings(keys)
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// 转换成字符串
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var signStr = ""
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for _, key := range keys {
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if key != "" {
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signStr += fmt.Sprintf("%s=%s&", key, c.getString(params[key]))
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}
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}
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signStr = strings.TrimRight(signStr, "&")
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// 签名
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sign, err := c.rsaSign(signStr, crypto.SHA256)
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if err != nil {
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c.zapLog.WithTraceId(ctx).Sugar().Errorf("签名失败：%s", err)
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return nil
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}
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params.Set("sign", sign)
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return params
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}
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func (c *Client) getString(i interface{}) string {
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switch v := i.(type) {
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case string:
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return v
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case []byte:
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return string(v)
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case int:
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return strconv.Itoa(v)
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case bool:
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return strconv.FormatBool(v)
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default:
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bytes, _ := json.Marshal(v)
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return string(bytes)
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}
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}
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