109 lines
3.0 KiB
Go
109 lines
3.0 KiB
Go
package payment
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import (
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"encoding/hex"
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"fmt"
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"net/url"
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)
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// CreatePaymentLink 创建支付链接
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func (c *Client) CreatePaymentLink(req PaymentLinkRequest) (*PaymentLinkResponse, error) {
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payUrlTemplate := "%s&fromId=include_sb&tysdPayParams=%s&tysdShopid=%s&tysdEncryptKey=%s&returnUrl=%s&showTitleBar=%s"
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orderData := map[string]string{
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"merchantNo": c.cfg.MchtNo,
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"orderInfos": req.ProductName,
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"orderNo": req.OrderNo,
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"amount": req.Price,
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"successUrl": hex.EncodeToString([]byte(c.cfg.SuccessUrl + req.OrderNo)),
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"acctType": "2",
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"notifyUrl": hex.EncodeToString([]byte(c.cfg.SuccessUrl + req.OrderNo)),
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}
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signData := map[string]string{
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"merchantNo": c.cfg.MchtNo,
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"orderNo": req.OrderNo,
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"amount": req.Price,
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}
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sign, enKey, err := c.EncryptMobile(MapToString(orderData), MapToString(signData))
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if err != nil {
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return nil, fmt.Errorf("加密支付参数失败: %v", err)
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}
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payUrl := fmt.Sprintf(payUrlTemplate,
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req.BackUrl,
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sign,
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c.cfg.ShopId,
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enKey,
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url.QueryEscape(c.cfg.ReturnUrl),
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c.cfg.ShowTitleBar,
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)
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plainText := c.cfg.MchtNo + "|" + req.OrderNo + "|" + req.Price
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signature := HmacSha256To16(c.cfg.Sha, plainText)
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return &PaymentLinkResponse{
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OrderNo: req.OrderNo,
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NotifyUrl: c.cfg.NotifyUrl,
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Sign: signature,
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PlainText: plainText,
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PayUrl: payUrl,
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}, nil
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}
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// CreatePaymentLinkWithBackUrl 创建支付链接（带 fromId 判断）
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func (c *Client) CreatePaymentLinkWithBackUrl(req PaymentLinkRequest) (*PaymentLinkResponse, error) {
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var payUrlTemplate string
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if len(req.BackUrl) > 0 && (contains(req.BackUrl, "fromId")) {
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payUrlTemplate = "%s&tysdPayParams=%s&tysdShopid=%s&tysdEncryptKey=%s&returnUrl=%s&showTitleBar=%s"
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} else {
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payUrlTemplate = "%s&fromId=include_sb&tysdPayParams=%s&tysdShopid=%s&tysdEncryptKey=%s&returnUrl=%s&showTitleBar=%s"
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}
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orderData := map[string]string{
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"merchantNo": c.cfg.MchtNo,
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"orderInfos": req.ProductName,
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"orderNo": req.OrderNo,
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"amount": req.Price,
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"successUrl": hex.EncodeToString([]byte(c.cfg.SuccessUrl + req.OrderNo)),
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"acctType": "2",
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"notifyUrl": hex.EncodeToString([]byte(c.cfg.SuccessUrl + req.OrderNo)),
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}
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signData := map[string]string{
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"merchantNo": c.cfg.MchtNo,
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"orderNo": req.OrderNo,
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"amount": req.Price,
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}
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sign, enKey, err := c.EncryptMobile(MapToString(orderData), MapToString(signData))
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if err != nil {
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return nil, fmt.Errorf("加密支付参数失败: %v", err)
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}
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payUrl := fmt.Sprintf(payUrlTemplate,
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req.BackUrl,
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sign,
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c.cfg.ShopId,
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enKey,
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url.QueryEscape(c.cfg.ReturnUrl),
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c.cfg.ShowTitleBar,
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)
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plainText := c.cfg.MchtNo + "|" + req.OrderNo + "|" + req.Price
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signature := HmacSha256To16(c.cfg.Sha, plainText)
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return &PaymentLinkResponse{
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OrderNo: req.OrderNo,
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NotifyUrl: c.cfg.NotifyUrl,
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Sign: signature,
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PlainText: plainText,
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PayUrl: payUrl,
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}, nil
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}
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func contains(s, substr string) bool {
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return len(s) > 0 && len(substr) > 0 && (s == substr || len(s) > len(substr) && s[:len(substr)] == substr)
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}
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