Golang Option.StoreCode方法代码示例

func testStoreCodeFrom(t *testing.T, i int, haveErr, wantErr error, haveScope scope.Option, wantScope scope.Scope, wantCode string, wantID int64) {
	if wantErr != nil {
		assert.EqualError(t, haveErr, wantErr.Error(), "Index: %d", i)

	}
	switch sos := haveScope.Scope(); sos {
	case scope.StoreID:
		assert.Exactly(t, wantID, haveScope.Store.StoreID(), "Index: %d", i)
	case scope.GroupID:
		assert.Exactly(t, wantID, haveScope.Group.GroupID(), "Index: %d", i)
	case scope.WebsiteID:
		assert.Exactly(t, wantID, haveScope.Website.WebsiteID(), "Index: %d", i)
	case scope.DefaultID:
		assert.Nil(t, haveScope.Store, "Index: %d", i)
		assert.Nil(t, haveScope.Group, "Index: %d", i)
		assert.Nil(t, haveScope.Website, "Index: %d", i)
	default:
		t.Fatalf("Unknown scope: %d", sos)
	}
	assert.Exactly(t, wantScope, haveScope.Scope(), "Index: %d", i)
	assert.Exactly(t, wantCode, haveScope.StoreCode(), "Index: %d", i)
}

// WithInitStoreByFormCookie reads from a GET parameter or cookie the store code.
// Checks if the store code is valid and allowed. If so it adjusts the context.Context
// to provide the new requestedStore.
//
// It calls Reader.RequestedStore() to determine the correct store.
// 		1. check cookie store, always a string and the store code
// 		2. check for GET ___store variable, always a string and the store code
func WithInitStoreByFormCookie() ctxhttp.Middleware {
	return func(hf ctxhttp.HandlerFunc) ctxhttp.HandlerFunc {
		return func(ctx context.Context, w http.ResponseWriter, r *http.Request) error {

			storeService, requestedStore, err := FromContextReader(ctx)
			if err != nil {
				if PkgLog.IsDebug() {
					PkgLog.Debug("store.WithInitStoreByToken.FromContextServiceReader", "err", err, "ctx", ctx)
				}
				return errgo.Mask(err)
			}

			var reqSO scope.Option

			reqSO, err = CodeFromRequestGET(r)
			if err != nil {
				if PkgLog.IsDebug() {
					PkgLog.Debug("store.WithInitStoreByFormCookie.StoreCodeFromRequestGET", "err", err, "req", r, "scope", reqSO)
				}

				reqSO, err = CodeFromCookie(r)
				if err != nil {
					// ignore further processing because all codes are invalid or not found
					if PkgLog.IsDebug() {
						PkgLog.Debug("store.WithInitStoreByFormCookie.StoreCodeFromCookie", "err", err, "req", r, "scope", reqSO)
					}
					return hf.ServeHTTPContext(ctx, w, r)
				}
			}

			var newRequestedStore *Store
			if newRequestedStore, err = storeService.RequestedStore(reqSO); err != nil {
				if PkgLog.IsDebug() {
					PkgLog.Debug("store.WithInitStoreByFormCookie.storeService.RequestedStore", "err", err, "req", r, "scope", reqSO)
				}
				return errgo.Mask(err)
			}

			soStoreCode := reqSO.StoreCode()

			// delete and re-set a new cookie, adjust context.Context
			if newRequestedStore != nil && newRequestedStore.Data.Code.String == soStoreCode {
				wds, err := newRequestedStore.Website.DefaultStore()
				if err != nil {
					if PkgLog.IsDebug() {
						PkgLog.Debug("store.WithInitStoreByFormCookie.Website.DefaultStore", "err", err, "soStoreCode", soStoreCode)
					}
					return errgo.Mask(err)
				}
				if wds.Data.Code.String == soStoreCode {
					newRequestedStore.DeleteCookie(w) // cookie not needed anymore
				} else {
					newRequestedStore.SetCookie(w) // make sure we force set the new store

					if newRequestedStore.StoreID() != requestedStore.StoreID() {
						// this may lead to a bug because the previously set storeService and requestedStore
						// will still exists and have not been removed.
						ctx = WithContextReader(ctx, storeService, newRequestedStore)
					}
				}
			}

			return hf(ctx, w, r)

		}
	}
}