mirror of
https://github.com/silenceper/wechat.git
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96c1f98944
* [feature] Format the code and improve Mini Program authorization to obtain openid（miniprogram/auth/auth.go Code2Session） * [feature] CheckEncryptedData (https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/user-info/auth.checkEncryptedData.html) * upgrade json error * upgrade json error Co-authored-by: houseme <houseme@outlook.com>
287 lines
8.2 KiB
Go
287 lines
8.2 KiB
Go
package order
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import (
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"encoding/xml"
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"errors"
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"strconv"
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"strings"
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"time"
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"github.com/silenceper/wechat/v2/pay/config"
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"github.com/silenceper/wechat/v2/util"
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)
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// https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1
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var payGateway = "https://api.mch.weixin.qq.com/pay/unifiedorder"
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// SUCCESS 表示支付成功
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const SUCCESS = "SUCCESS"
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// Order struct extends context
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type Order struct {
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*config.Config
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}
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// NewOrder return an instance of order package
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func NewOrder(cfg *config.Config) *Order {
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order := Order{cfg}
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return &order
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}
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// Params was NEEDED when request Unified order
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// 传入的参数，用于生成 prepay_id 的必需参数
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type Params struct {
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TotalFee string
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CreateIP string
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Body string
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OutTradeNo string
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TimeExpire string // 订单失效时间，格式为yyyyMMddHHmmss，如2009年12月27日9点10分10秒表示为20091227091010。
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OpenID string
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TradeType string
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SignType string
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Detail string
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Attach string
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GoodsTag string
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NotifyURL string
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}
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// Config 是传出用于 js sdk 用的参数
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type Config struct {
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Timestamp string `json:"timestamp"`
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NonceStr string `json:"nonceStr"`
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PrePayID string `json:"prePayId"`
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SignType string `json:"signType"`
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Package string `json:"package"`
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PaySign string `json:"paySign"`
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}
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// ConfigForApp 是传出用于 app sdk 用的参数
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type ConfigForApp struct {
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AppID string `json:"appid"`
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MchID string `json:"partnerid"` // 微信支付分配的商户号
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PrePayID string `json:"prepayid"`
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Package string `json:"package"`
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NonceStr string `json:"nonceStr"`
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Timestamp string `json:"timestamp"`
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Sign string `json:"sign"`
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}
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// PreOrder 是 Unified order 接口的返回
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type PreOrder struct {
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ReturnCode string `xml:"return_code"`
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ReturnMsg string `xml:"return_msg"`
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AppID string `xml:"appid,omitempty"`
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MchID string `xml:"mch_id,omitempty"`
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NonceStr string `xml:"nonce_str,omitempty"`
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Sign string `xml:"sign,omitempty"`
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ResultCode string `xml:"result_code,omitempty"`
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TradeType string `xml:"trade_type,omitempty"`
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PrePayID string `xml:"prepay_id,omitempty"`
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CodeURL string `xml:"code_url,omitempty"`
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MWebURL string `xml:"mweb_url,omitempty"`
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ErrCode string `xml:"err_code,omitempty"`
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ErrCodeDes string `xml:"err_code_des,omitempty"`
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}
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// payRequest 接口请求参数
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type payRequest struct {
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AppID string `xml:"appid"` // 公众账号ID
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MchID string `xml:"mch_id"` // 商户号
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DeviceInfo string `xml:"device_info,omitempty"` // 设备号
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NonceStr string `xml:"nonce_str"` // 随机字符串
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Sign string `xml:"sign"` // 签名
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SignType string `xml:"sign_type,omitempty"` // 签名类型
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Body string `xml:"body"` // 商品描述
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Detail string `xml:"detail,omitempty"` // 商品详情
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Attach string `xml:"attach,omitempty"` // 附加数据
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OutTradeNo string `xml:"out_trade_no"` // 商户订单号
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FeeType string `xml:"fee_type,omitempty"` // 标价币种
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TotalFee string `xml:"total_fee"` // 标价金额
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SpbillCreateIP string `xml:"spbill_create_ip"` // 终端IP
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TimeStart string `xml:"time_start,omitempty"` // 交易起始时间
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TimeExpire string `xml:"time_expire,omitempty"` // 交易结束时间
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GoodsTag string `xml:"goods_tag,omitempty"` // 订单优惠标记
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NotifyURL string `xml:"notify_url"` // 通知地址
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TradeType string `xml:"trade_type"` // 交易类型
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ProductID string `xml:"product_id,omitempty"` // 商品ID
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LimitPay string `xml:"limit_pay,omitempty"` // 指定支付方式
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OpenID string `xml:"openid,omitempty"` // 用户标识
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SceneInfo string `xml:"scene_info,omitempty"` // 场景信息
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XMLName struct{} `xml:"xml"`
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}
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func (req *payRequest) BridgePayRequest(p *Params, AppID, MchID, nonceStr, sign string) *payRequest {
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request := payRequest{
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AppID: AppID,
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MchID: MchID,
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NonceStr: nonceStr,
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Sign: sign,
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Body: p.Body,
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OutTradeNo: p.OutTradeNo,
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TotalFee: p.TotalFee,
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SpbillCreateIP: p.CreateIP,
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NotifyURL: p.NotifyURL,
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TradeType: p.TradeType,
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OpenID: p.OpenID,
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SignType: p.SignType,
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Detail: p.Detail,
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Attach: p.Attach,
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GoodsTag: p.GoodsTag,
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}
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return &request
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}
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// BridgeConfig get js bridge config
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func (o *Order) BridgeConfig(p *Params) (cfg Config, err error) {
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var (
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buffer strings.Builder
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timestamp = strconv.FormatInt(time.Now().Unix(), 10)
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)
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order, err := o.PrePayOrder(p)
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if err != nil {
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return
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}
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buffer.WriteString("appId=")
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buffer.WriteString(order.AppID)
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buffer.WriteString("&nonceStr=")
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buffer.WriteString(order.NonceStr)
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buffer.WriteString("&package=")
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buffer.WriteString("prepay_id=" + order.PrePayID)
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buffer.WriteString("&signType=")
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buffer.WriteString(p.SignType)
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buffer.WriteString("&timeStamp=")
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buffer.WriteString(timestamp)
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buffer.WriteString("&key=")
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buffer.WriteString(o.Key)
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sign, err := util.CalculateSign(buffer.String(), p.SignType, o.Key)
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if err != nil {
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return
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}
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// 签名
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cfg.PaySign = sign
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cfg.NonceStr = order.NonceStr
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cfg.Timestamp = timestamp
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cfg.PrePayID = order.PrePayID
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cfg.SignType = p.SignType
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cfg.Package = "prepay_id=" + order.PrePayID
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return
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}
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// BridgeAppConfig get app bridge config
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func (o *Order) BridgeAppConfig(p *Params) (cfg ConfigForApp, err error) {
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var (
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timestamp = strconv.FormatInt(time.Now().Unix(), 10)
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noncestr = util.RandomStr(32)
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_package = "Sign=WXPay"
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)
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order, err := o.PrePayOrder(p)
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if err != nil {
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return
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}
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result := map[string]string{
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"appid": order.AppID,
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"partnerid": order.MchID,
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"prepayid": order.PrePayID,
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"package": _package,
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"noncestr": noncestr,
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"timestamp": timestamp,
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}
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// 签名
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sign, err := util.ParamSign(result, o.Key)
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if err != nil {
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return
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}
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result["sign"] = sign
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cfg = ConfigForApp{
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AppID: result["appid"],
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MchID: result["partnerid"],
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PrePayID: result["prepayid"],
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Package: result["package"],
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NonceStr: result["noncestr"],
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Timestamp: result["timestamp"],
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Sign: result["sign"],
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}
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return
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}
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// PrePayOrder return data for invoke wechat payment
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func (o *Order) PrePayOrder(p *Params) (payOrder PreOrder, err error) {
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nonceStr := util.RandomStr(32)
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// 通知地址
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if len(p.NotifyURL) == 0 {
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p.NotifyURL = o.NotifyURL // 默认使用order.NotifyURL
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}
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param := map[string]string{
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"appid": o.AppID,
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"body": p.Body,
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"mch_id": o.MchID,
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"nonce_str": nonceStr,
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"out_trade_no": p.OutTradeNo,
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"spbill_create_ip": p.CreateIP,
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"total_fee": p.TotalFee,
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"trade_type": p.TradeType,
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"openid": p.OpenID,
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"sign_type": p.SignType,
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"detail": p.Detail,
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"attach": p.Attach,
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"goods_tag": p.GoodsTag,
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"notify_url": p.NotifyURL,
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}
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// 签名类型
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if param["sign_type"] == "" {
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param["sign_type"] = util.SignTypeMD5
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}
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if p.TimeExpire != "" {
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// 如果有传入交易结束时间
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param["time_expire"] = p.TimeExpire
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}
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sign, err := util.ParamSign(param, o.Key)
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if err != nil {
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return
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}
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request := new(payRequest).BridgePayRequest(p, o.AppID, o.MchID, nonceStr, sign)
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if len(p.TimeExpire) > 0 {
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// 如果有传入交易结束时间
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request.TimeExpire = p.TimeExpire
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}
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rawRet, err := util.PostXML(payGateway, request)
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if err != nil {
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return
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}
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err = xml.Unmarshal(rawRet, &payOrder)
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if err != nil {
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return
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}
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if payOrder.ReturnCode == SUCCESS {
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// pay success
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if payOrder.ResultCode == SUCCESS {
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err = nil
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return
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}
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err = errors.New(payOrder.ErrCode + payOrder.ErrCodeDes)
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return
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}
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err = errors.New("[msg : xmlUnmarshalError] [rawReturn : " + string(rawRet) + "] [sign : " + sign + "]")
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return
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}
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// PrePayID will request wechat merchant api and request for a pre payment order id
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func (o *Order) PrePayID(p *Params) (prePayID string, err error) {
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order, err := o.PrePayOrder(p)
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if err != nil {
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return
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}
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if order.PrePayID == "" {
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err = errors.New("empty prepayid")
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}
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prePayID = order.PrePayID
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return
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}
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