93 lines
2.8 KiB
Go
93 lines
2.8 KiB
Go
package sign
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import (
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha1"
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"crypto/x509"
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"encoding/base64"
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"fmt"
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"log"
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"net/url"
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"sort"
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"strings"
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)
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const APPID = "a23b2d45b0214f7ebbe167cd2e490435"
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const PRI_KEY = "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"
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const HOST = "http://openapi.hopewindcloud.com/"
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// 对参数进行签名，并为 Map 添加 appid 和 sign 参数
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func SignByRSA(params map[string]string) string {
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params["appid"] = APPID
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content := CreateLinkString(params)
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privateKeyBytes, err := base64.StdEncoding.DecodeString(PRI_KEY)
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if err != nil {
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return ""
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}
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pkcs8PrivateKey, err := x509.ParsePKCS8PrivateKey(privateKeyBytes)
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if err != nil {
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log.Fatalf("Failed to parse PKCS#8 private key: %v", err)
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}
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privateKey, ok := pkcs8PrivateKey.(*rsa.PrivateKey)
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if !ok {
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log.Fatal("Private key is not of type RSA")
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}
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h := sha1.New()
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_, err = h.Write([]byte(content))
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if err != nil {
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fmt.Println(err)
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return ""
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}
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hashed := h.Sum(nil)
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signed, err := rsa.SignPKCS1v15(rand.Reader, privateKey, crypto.SHA1, hashed)
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if err != nil {
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fmt.Println(err)
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return ""
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}
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sign := url.QueryEscape(base64.StdEncoding.EncodeToString(signed))
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params["sign"] = sign
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return sign
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}
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// paramsFilter 过滤参数
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func paramsFilter(params map[string]interface{}) map[string]string {
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result := make(map[string]string)
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if params == nil || len(params) == 0 {
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return result
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}
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for key, value := range params {
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if value == nil || key == "sign" {
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continue
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}
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result[key] = value.(string)
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}
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return result
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}
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// createLinkString 创建链接字符串
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func CreateLinkString(params map[string]string) string {
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if params == nil {
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return ""
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}
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// 排序键
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keys := make([]string, 0, len(params))
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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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sb := strings.Builder{}
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keyLastNum := len(keys) - 1
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for i, key := range keys {
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value := params[key]
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sb.WriteString(key)
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sb.WriteString("=")
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sb.WriteString(value)
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if i != keyLastNum {
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sb.WriteString("&")
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}
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}
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return sb.String()
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}
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