package wechat import ( "crypto/rsa" "encoding/json" "errors" "fmt" "io" "io/ioutil" "net/http" "github.com/go-pay/gopay" "github.com/go-pay/gopay/pkg/xlog" ) type Resource struct { OriginalType string `json:"original_type,omitempty"` Algorithm string `json:"algorithm"` Ciphertext string `json:"ciphertext"` AssociatedData string `json:"associated_data"` Nonce string `json:"nonce"` } type V3DecryptResult struct { Appid string `json:"appid"` Mchid string `json:"mchid"` OutTradeNo string `json:"out_trade_no"` TransactionId string `json:"transaction_id"` TradeType string `json:"trade_type"` TradeState string `json:"trade_state"` TradeStateDesc string `json:"trade_state_desc"` BankType string `json:"bank_type"` Attach string `json:"attach"` SuccessTime string `json:"success_time"` Payer *Payer `json:"payer"` Amount *Amount `json:"amount"` SceneInfo *SceneInfo `json:"scene_info"` PromotionDetail []*PromotionDetail `json:"promotion_detail"` } type V3DecryptPartnerResult struct { SpAppid string `json:"sp_appid"` SpMchid string `json:"sp_mchid"` SubAppid string `json:"sub_appid"` SubMchid string `json:"sub_mchid"` OutTradeNo string `json:"out_trade_no"` TransactionId string `json:"transaction_id"` TradeType string `json:"trade_type"` TradeState string `json:"trade_state"` TradeStateDesc string `json:"trade_state_desc"` BankType string `json:"bank_type"` Attach string `json:"attach"` SuccessTime string `json:"success_time"` Payer *PartnerPayer `json:"payer"` Amount *Amount `json:"amount"` SceneInfo *SceneInfo `json:"scene_info"` PromotionDetail []*PromotionDetail `json:"promotion_detail"` } type V3DecryptRefundResult struct { Mchid string `json:"mchid"` OutTradeNo string `json:"out_trade_no"` TransactionId string `json:"transaction_id"` OutRefundNo string `json:"out_refund_no"` RefundId string `json:"refund_id"` RefundStatus string `json:"refund_status"` SuccessTime string `json:"success_time"` UserReceivedAccount string `json:"user_received_account"` Amount *RefundAmount `json:"amount"` } type V3DecryptPartnerRefundResult struct { SpMchid string `json:"sp_mchid"` SubMchid string `json:"sub_mchid"` OutTradeNo string `json:"out_trade_no"` TransactionId string `json:"transaction_id"` OutRefundNo string `json:"out_refund_no"` RefundId string `json:"refund_id"` RefundStatus string `json:"refund_status"` SuccessTime string `json:"success_time"` UserReceivedAccount string `json:"user_received_account"` Amount *RefundAmount `json:"amount"` } type V3DecryptCombineResult struct { CombineAppid string `json:"combine_appid"` CombineMchid string `json:"combine_mchid"` CombineOutTradeNo string `json:"combine_out_trade_no"` SceneInfo *SceneInfo `json:"scene_info"` SubOrders []*SubOrders `json:"sub_orders"` // 最多支持子单条数：50 CombinePayerInfo *Payer `json:"combine_payer_info"` // 支付者信息 } type V3DecryptScoreResult struct { Appid string `json:"appid"` Mchid string `json:"mchid"` OutOrderNo string `json:"out_order_no"` ServiceId string `json:"service_id"` Openid string `json:"openid"` State string `json:"state"` StateDescription string `json:"state_description"` TotalAmount int `json:"total_amount"` ServiceIntroduction string `json:"service_introduction"` PostPayments []*PostPayments `json:"post_payments"` PostDiscounts []*PostDiscounts `json:"post_discounts"` RiskFund *RiskFund `json:"risk_fund"` TimeRange *TimeRange `json:"time_range"` Location *Location `json:"location"` Attach string `json:"attach"` NotifyUrl string `json:"notify_url"` OrderId string `json:"order_id"` NeedCollection bool `json:"need_collection"` Collection *Collection `json:"collection"` } type V3DecryptProfitShareResult struct { SpMchid string `json:"sp_mchid"` // 服务商商户号 SubMchid string `json:"sub_mchid"` // 子商户号 TransactionId string `json:"transaction_id"` // 微信订单号 OrderId string `json:"order_id"` // 微信分账/回退单号 OutOrderNo string `json:"out_order_no"` // 商户分账/回退单号 Receiver *Receiver `json:"receiver"` SuccessTime string `json:"success_time"` // 成功时间 } type Receiver struct { Type string `json:"type"` // 分账接收方类型 Account string `json:"account"` // 分账接收方账号 Amount int `json:"amount"` // 分账动账金额 Description string `json:"description"` // 分账/回退描述 } type V3DecryptBusifavorResult struct { EventType string `json:"event_type"` // 事件类型 CouponCode string `json:"coupon_code"` // 券code StockId string `json:"stock_id"` // 批次号 SendTime string `json:"send_time"` // 发放时间 Openid string `json:"openid"` // 用户标识 Unionid string `json:"unionid"` // 用户统一标识 SendChannel string `json:"send_channel"` // 发放渠道 SendMerchant string `json:"send_merchant"` // 发券商户号 AttachInfo *BusifavorAttachInfo `json:"attach_info"` // 发券附加信息 } type BusifavorAttachInfo struct { TransactionId string `json:"transaction_id"` // 交易订单编号 ActCode string `json:"act_code"` // 支付有礼活动编号/营销馆活动ID HallCode string `json:"hall_code"` // 营销馆ID HallBelongMchID int `json:"hall_belong_mch_id"` // 营销馆所属商户号 CardID string `json:"card_id"` // 会员卡ID Code string `json:"code"` // 会员卡code ActivityID string `json:"activity_id"` // 会员活动ID } type V3NotifyReq struct { Id string `json:"id"` CreateTime string `json:"create_time"` ResourceType string `json:"resource_type"` EventType string `json:"event_type"` Summary string `json:"summary"` Resource *Resource `json:"resource"` SignInfo *SignInfo `json:"-"` } type V3NotifyRsp struct { Code string `json:"code"` Message string `json:"message"` } // ===================================================================================================================== // 解析微信回调请求的参数到 V3NotifyReq 结构体 func V3ParseNotify(req *http.Request) (notifyReq *V3NotifyReq, err error) { bs, err := ioutil.ReadAll(io.LimitReader(req.Body, int64(5<<20))) // default 5MB change the size you want; defer req.Body.Close() if err != nil { return nil, fmt.Errorf("read request body error:%w", err) } si := &SignInfo{ HeaderTimestamp: req.Header.Get(HeaderTimestamp), HeaderNonce: req.Header.Get(HeaderNonce), HeaderSignature: req.Header.Get(HeaderSignature), HeaderSerial: req.Header.Get(HeaderSerial), SignBody: string(bs), } notifyReq = &V3NotifyReq{SignInfo: si} if err = json.Unmarshal(bs, notifyReq); err != nil { return nil, fmt.Errorf("json.Unmarshal(%s, %+v)：%w", string(bs), notifyReq, err) } return notifyReq, nil } // Deprecated // 推荐使用 VerifySignByPK() func (v *V3NotifyReq) VerifySign(wxPkContent string) (err error) { if v.SignInfo != nil { return V3VerifySign(v.SignInfo.HeaderTimestamp, v.SignInfo.HeaderNonce, v.SignInfo.SignBody, v.SignInfo.HeaderSignature, wxPkContent) } return errors.New("verify notify sign, bug SignInfo is nil") } // 异步通知验签 // wxPublicKey：微信平台证书公钥内容，通过 client.WxPublicKeyMap() 获取，然后根据 signInfo.HeaderSerial 获取相应的公钥 // 推荐使用 VerifySignByPKMap() func (v *V3NotifyReq) VerifySignByPK(wxPublicKey *rsa.PublicKey) (err error) { if v.SignInfo != nil { return V3VerifySignByPK(v.SignInfo.HeaderTimestamp, v.SignInfo.HeaderNonce, v.SignInfo.SignBody, v.SignInfo.HeaderSignature, wxPublicKey) } return errors.New("verify notify sign, bug SignInfo is nil") } // 异步通知验签 // wxPublicKey：微信平台证书公钥内容，通过 client.WxPublicKeyMap() 获取 func (v *V3NotifyReq) VerifySignByPKMap(wxPublicKeyMap map[string]*rsa.PublicKey) (err error) { if v.SignInfo != nil && wxPublicKeyMap != nil { return V3VerifySignByPK(v.SignInfo.HeaderTimestamp, v.SignInfo.HeaderNonce, v.SignInfo.SignBody, v.SignInfo.HeaderSignature, wxPublicKeyMap[v.SignInfo.HeaderSerial]) } return errors.New("verify notify sign, bug SignInfo or wxPublicKeyMap is nil") } // 解密 普通支付 回调中的加密信息 func (v *V3NotifyReq) DecryptCipherText(apiV3Key string) (result *V3DecryptResult, err error) { if v.Resource != nil { result, err = V3DecryptNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // 解密 服务商支付 回调中的加密信息 func (v *V3NotifyReq) DecryptPartnerCipherText(apiV3Key string) (result *V3DecryptPartnerResult, err error) { if v.Resource != nil { result, err = V3DecryptPartnerNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // 解密 普通退款 回调中的加密信息 func (v *V3NotifyReq) DecryptRefundCipherText(apiV3Key string) (result *V3DecryptRefundResult, err error) { if v.Resource != nil { result, err = V3DecryptRefundNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // 解密 服务商退款 回调中的加密信息 func (v *V3NotifyReq) DecryptPartnerRefundCipherText(apiV3Key string) (result *V3DecryptPartnerRefundResult, err error) { if v.Resource != nil { result, err = V3DecryptPartnerRefundNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // 解密 合单支付 回调中的加密信息 func (v *V3NotifyReq) DecryptCombineCipherText(apiV3Key string) (result *V3DecryptCombineResult, err error) { if v.Resource != nil { result, err = V3DecryptCombineNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // 解密 支付分 回调中的加密信息 func (v *V3NotifyReq) DecryptScoreCipherText(apiV3Key string) (result *V3DecryptScoreResult, err error) { if v.Resource != nil { result, err = V3DecryptScoreNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // 解密分账动账回调中的加密信息 func (v *V3NotifyReq) DecryptProfitShareCipherText(apiV3Key string) (result *V3DecryptProfitShareResult, err error) { if v.Resource != nil { result, err = V3DecryptProfitShareNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // 解密商家券回调中的加密信息 func (v *V3NotifyReq) DecryptBusifavorCipherText(apiV3Key string) (result *V3DecryptBusifavorResult, err error) { if v.Resource != nil { result, err = V3DecryptBusifavorNotifyCipherText(v.Resource.Ciphertext, v.Resource.Nonce, v.Resource.AssociatedData, apiV3Key) if err != nil { bytes, _ := json.Marshal(v) return nil, fmt.Errorf("V3NotifyReq(%s) decrypt cipher text error(%w)", string(bytes), err) } return result, nil } return nil, errors.New("notify data Resource is nil") } // Deprecated // 暂时不推荐此方法，请使用 wechat.V3ParseNotify() // 解析微信回调请求的参数到 gopay.BodyMap func V3ParseNotifyToBodyMap(req *http.Request) (bm gopay.BodyMap, err error) { bs, err := ioutil.ReadAll(io.LimitReader(req.Body, int64(3<<20))) // default 3MB change the size you want; defer req.Body.Close() if err != nil { xlog.Error("err:", err) return } bm = make(gopay.BodyMap) if err = json.Unmarshal(bs, &bm); err != nil { return nil, fmt.Errorf("json.Unmarshal(%s)：%w", string(bs), err) } return bm, nil }