七月迭代短暂完结,还有很多后端的关键东西没有弄,这是一版赶时间做的东西

internal/handler/callback/wecom_approval.go

@@ -0,0 +1,61 @@
+package callback
+
+import (
+	"strconv"
+
+	"github.com/gofiber/fiber/v2"
+
+	wecominfra "github.com/break/junhong_cmp_fiber/internal/infrastructure/wecom"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+)
+
+// WeComApprovalHandler 提供企业微信审批加密回调入口。
+type WeComApprovalHandler struct {
+	service *wecominfra.CallbackService
+}
+
+// NewWeComApprovalHandler 创建企业微信审批回调 Handler。
+func NewWeComApprovalHandler(service *wecominfra.CallbackService) *WeComApprovalHandler {
+	return &WeComApprovalHandler{service: service}
+}
+
+// Verify 验证企业微信审批回调 URL。
+// GET /api/callback/wecom/approval/:application_id
+func (h *WeComApprovalHandler) Verify(c *fiber.Ctx) error {
+	applicationID, err := parseWeComApplicationID(c.Params("application_id"))
+	if err != nil {
+		return err
+	}
+	plaintext, err := h.service.VerifyURL(
+		c.UserContext(), applicationID, c.Query("msg_signature"), c.Query("timestamp"), c.Query("nonce"), c.Query("echostr"),
+	)
+	if err != nil {
+		return err
+	}
+	c.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
+	return c.Send(plaintext)
+}
+
+// Receive 接收企业微信审批状态变化事件并快速返回 success。
+// POST /api/callback/wecom/approval/:application_id
+func (h *WeComApprovalHandler) Receive(c *fiber.Ctx) error {
+	applicationID, err := parseWeComApplicationID(c.Params("application_id"))
+	if err != nil {
+		return err
+	}
+	if err := h.service.Receive(
+		c.UserContext(), applicationID, c.Query("msg_signature"), c.Query("timestamp"), c.Query("nonce"), c.Body(),
+	); err != nil {
+		return err
+	}
+	c.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
+	return c.SendString("success")
+}
+
+func parseWeComApplicationID(value string) (uint, error) {
+	id, err := strconv.ParseUint(value, 10, 64)
+	if err != nil || id == 0 {
+		return 0, errors.New(errors.CodeInvalidParam, "企业微信应用配置 ID 无效")
+	}
+	return uint(id), nil
+}