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package pay
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import (
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"context"
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"errors"
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"fmt"
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"git.oa00.com/go/rsa"
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"github.com/wechatpay-apiv3/wechatpay-go/core"
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"github.com/wechatpay-apiv3/wechatpay-go/core/auth/verifiers"
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"github.com/wechatpay-apiv3/wechatpay-go/core/downloader"
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"github.com/wechatpay-apiv3/wechatpay-go/core/notify"
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"github.com/wechatpay-apiv3/wechatpay-go/core/option"
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)
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var Wxpay = wxpay{}
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type wxpay struct {
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Client *core.Client
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Handler *notify.Handler
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}
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type WxpayConfig struct {
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MchID string // 商户号
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MchAPIv3Key string // 商户APIv3密钥
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PrivateKey string // 私钥
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PrivateCert string // 私钥证书
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}
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// InitWxpay @Title 初始化微信支付
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func InitWxpay(config WxpayConfig) error {
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// 加载私钥
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privateKey, err := rsa.ParsePrivateKey(config.PrivateKey, rsa.PKCS8)
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if err != nil {
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return errors.New("私钥错误")
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}
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// 加载私钥证书
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certificate, err := rsa.ParseCertificate(config.PrivateCert)
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if err != nil {
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return errors.New("证书错误")
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}
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// 使用商户私钥等初始化 client，并使它具有自动定时获取微信支付平台证书的能力
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opts := []core.ClientOption{
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option.WithWechatPayAutoAuthCipher(config.MchID, fmt.Sprintf("%x", certificate.SerialNumber), privateKey, config.MchAPIv3Key),
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}
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Wxpay.Client, err = core.NewClient(context.Background(), opts...)
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if err != nil {
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return errors.New("微信支付错误")
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}
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// 获取商户号对应的微信支付平台证书访问器
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certVisitor := downloader.MgrInstance().GetCertificateVisitor(config.MchID)
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// 使用证书访问器初始化 `notify.Handler`
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Wxpay.Handler = notify.NewNotifyHandler(config.MchAPIv3Key, verifiers.NewSHA256WithRSAVerifier(certVisitor))
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return nil
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}
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