add ali captcha

app/main/api/internal/logic/captcha/getencryptedsceneidlogic.go

@@ -0,0 +1,38 @@
+package captcha
+
+import (
+	"context"
+
+	"tyc-server/app/main/api/internal/svc"
+	"tyc-server/app/main/api/internal/types"
+	"tyc-server/pkg/captcha"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type GetEncryptedSceneIdLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewGetEncryptedSceneIdLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetEncryptedSceneIdLogic {
+	return &GetEncryptedSceneIdLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *GetEncryptedSceneIdLogic) GetEncryptedSceneId() (resp *types.GetEncryptedSceneIdResp, err error) {
+	cfg := l.svcCtx.Config.Captcha
+	encrypted, genErr := captcha.GenerateEncryptedSceneID(cfg.SceneID, cfg.EKey, 3600)
+	if genErr != nil {
+		// 记录日志，返回通用错误
+		l.Errorf("generate encrypted scene id error: %+v", genErr)
+		return nil, genErr
+	}
+	return &types.GetEncryptedSceneIdResp{
+		EncryptedSceneId: encrypted,
+	}, nil
+}