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package wechat |
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import ( |
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"context" |
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"crypto/rsa" |
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"crypto/x509" |
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"errors" |
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"io/ioutil" |
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"log" |
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"git.tetele.net/tgo/helper" |
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"github.com/wechatpay-apiv3/wechatpay-go/core" |
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"github.com/wechatpay-apiv3/wechatpay-go/core/option" |
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"github.com/wechatpay-apiv3/wechatpay-go/utils" |
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) |
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/** |
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* 查询支付情况 |
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* wx_appid 公众号 appid |
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* wx_mch_id 商户号 |
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* wx_mch_serial_no 支付密钥 |
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* wx_mch_apiclient_key 商户私钥 |
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* wx_pay_cert 平台证书 |
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*/ |
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func GetPayResult(dbname, order_sn, wx_appid, wx_mch_id, wx_mch_serial_no, wx_mch_apiclient_key, wx_pay_cert string) (bool, map[string]interface{}, error) { |
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var ( |
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ctx context.Context = context.Background() |
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client *core.Client |
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) |
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if wx_appid == "" { |
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return false, nil, errors.New("没有appid") |
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} |
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if wx_mch_id == "" { |
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return false, nil, errors.New("没有商户号") |
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} |
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privateKey, err := utils.LoadPrivateKey(wx_mch_apiclient_key) |
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if err != nil { |
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log.Println("商户私钥有误:", err) |
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return false, nil, errors.New("商户私钥不正确") |
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} |
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wechatPayCertificate, err := utils.LoadCertificate(wx_pay_cert) |
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if err != nil { |
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log.Println("平台证书有误:", err) |
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return false, nil, errors.New("平台证书不正确") |
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} |
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client, err = CreateClient(ctx, wechatPayCertificate, privateKey, wx_mch_id, wx_mch_serial_no) |
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if err != nil { |
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log.Println("create pay client error:", err) |
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return false, nil, errors.New("构造失败") |
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} |
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url := "https://api.mch.weixin.qq.com/v3/pay/transactions/out-trade-no/" + order_sn + "?mchid=" + wx_mch_id |
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ret, err := client.Get(ctx, url) |
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body, err := ioutil.ReadAll(ret.Response.Body) |
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var resp map[string]interface{} |
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err = json.Unmarshal(body, &resp) |
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if err != nil { |
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log.Println("json unmarshal error:", err) |
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return false, nil, err |
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} else { |
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if _, exists := resp["trade_state"]; exists { |
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if helper.ToStr(resp["trade_state"]) == "SUCCESS" { |
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return true, resp, nil |
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} |
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} |
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} |
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return false, nil, nil |
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} |
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/** |
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* 构造支付请求 |
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* privateKey 商户私钥 |
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* wechatPayCertificate 平台证书 |
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* mchID 商户号 |
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* mchSerialNo 支付密钥 |
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*/ |
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func CreatePayClient(ctx context.Context, wechatPayCertificate *x509.Certificate, privateKey *rsa.PrivateKey, mchID, mchSerialNo string) (*core.Client, error) { |
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var client *core.Client |
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var err error |
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if wechatPayCertificate != nil { |
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client, err = core.NewClient( |
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ctx, option.WithMerchantCredential(mchID, mchSerialNo, privateKey), |
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option.WithWechatPayCertificate([]*x509.Certificate{wechatPayCertificate}), |
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) |
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if err != nil { |
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log.Println("创建 Client 失败:", err) |
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return nil, err |
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} |
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} else { |
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client, err = core.NewClient( |
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ctx, option.WithMerchantCredential(mchID, mchSerialNo, privateKey), option.WithoutValidator(), |
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) |
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if err != nil { |
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log.Println("创建 Client 失败:", err) |
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return nil, err |
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} |
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} |
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return client, nil |
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} |