func stripStandardPorts(apiEndpoints []string, host string) (newAPIEndpoints []string) {
	if len(apiEndpoints) == 1 {
		return apiEndpoints
	}
	newAPIEndpoints = make([]string, len(apiEndpoints))
	// Check all API endpoints for standard ports and strip them.
	for i, apiEndpoint := range apiEndpoints {
		_, err := xnet.ParseHTTPURL(apiEndpoint)
		if err != nil {
			continue
		}
		u, err := url.Parse(apiEndpoint)

{* ../../docs_src/security/tutorial006_an_py310.py hl[4,8,12] *}

第一次打开 URL（或在 API 文档中点击 **Execute** 按钮）时，浏览器要求输入用户名与密码：

<img src="/img/tutorial/security/image12.png">

## 检查用户名 { #check-the-username }

以下是更完整的示例。

使用依赖项检查用户名与密码是否正确。

为此要使用 Python 标准模块 [`secrets`](https://docs.python.org/3/library/secrets.html) 检查用户名与密码。

## More info { #more-info }

For more info about <abbr title="Cross-Origin Resource Sharing">CORS</abbr>, check the [Mozilla CORS documentation](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS).

/// note | Technical Details

You could also use `from starlette.middleware.cors import CORSMiddleware`.

     */
    public PrunedTag(final String tag) {
        this.tag = tag;
    }

    /**
     * Checks if this pruned tag configuration matches the given DOM node.
     * The matching is based on tag name, and optionally ID, CSS class, or custom attributes.
     *
     * @param node the DOM node to check against this pruned tag configuration
     * @return true if the node matches this pruned tag configuration, false otherwise

		debug.PrintStack()
		return metacache{}
	}

	// Grab a write lock, since we create one if we cannot find one.
	b.mu.Lock()
	defer b.mu.Unlock()

	// Check if exists already.
	if c, ok := b.caches[o.ID]; ok {
		c.lastHandout = time.Now()
		b.caches[o.ID] = c
		b.debugf("returning existing %v", o.ID)
		return c
	}

	if !o.Create {
		return metacache{

// as if the content of each was appended.
// The size of the content that produced the second checksum must be provided.
// Not all checksum types can be merged, use the CanMerge method to check.
// Checksum types must match.
func (c *Checksum) AddPart(other Checksum, size int64) error {
	if !other.Type.CanMerge() {
		return fmt.Errorf("checksum type cannot be merged")
	}
	if size == 0 {
		return nil
	}

	traceAllFlag

	// pass this flag to skip checking if object layer is available
	noObjLayerFlag
)

// Has checks if the given flag is enabled in `h`.
func (h hFlag) Has(flag hFlag) bool {
	// Use bitwise-AND and check if the result is non-zero.
	return h&flag != 0
}

// adminMiddleware performs some common admin handler functionality for all
// handlers:
//

```hl_lines="4"
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

Эта строка показывает URL, по которому ваше приложение доступно на локальной машине.

### Проверьте { #check-it }

Откройте браузер по адресу: [http://127.0.0.1:8000](http://127.0.0.1:8000).

Вы увидите JSON-ответ вида:

```JSON
{"message": "Hello World"}
```

                return existingInfo;
            }

            @Override
            public void store(CrawlingInfo entity) {
                assertEquals("Test Crawl", entity.getName());
                // Don't check exact expiration time, just verify it's reasonable
                assertNotNull(entity.getExpiredTime());
                assertTrue("Expiration time should be in the future", entity.getExpiredTime().longValue() > currentTime);

        // Then
        assertEquals(mockHandler, handler);
        verify(mockContext).getUrlHandler();
    }

    @Test
    @DisplayName("Should check for default credentials")
    void testHasDefaultCredentials() {
        // Given
        when(mockContext.hasDefaultCredentials()).thenReturn(true);

        // When