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60 lines
1.1 KiB
60 lines
1.1 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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"fmt"
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"go.dtapp.net/gorequest"
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"go.dtapp.net/gostring"
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"log"
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"sort"
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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, param gorequest.Params) gorequest.Params {
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// 排序
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var keys []string
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for key := range param {
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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, gostring.GetString(param.Get(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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log.Printf("签名失败：%s\n", err)
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return nil
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}
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param.Set("sign", sign)
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return param
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}
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