1234567891011121314151617181920212223242526272829 |
- ====================
- MD5 validator plugin
- ====================
- Entity bodies can sometimes be modified over the wire due to a faulty TCP transport or misbehaving proxy. If an HTTP
- response contains a Content-MD5 header, then a MD5 hash of the entity body of a response can be compared against the
- Content-MD5 header of the response to determine if the response was delivered intact. The
- ``Guzzle\Plugin\Md5\Md5ValidatorPlugin`` will throw an ``UnexpectedValueException`` if the calculated MD5 hash does
- not match the Content-MD5 header value:
- .. code-block:: php
- use Guzzle\Http\Client;
- use Guzzle\Plugin\Md5\Md5ValidatorPlugin;
- $client = new Client('http://www.test.com/');
- $md5Plugin = new Md5ValidatorPlugin();
- // Add the md5 plugin to the client object
- $client->addSubscriber($md5Plugin);
- $request = $client->get('http://www.yahoo.com/');
- $request->send();
- Calculating the MD5 hash of a large entity body or an entity body that was transferred using a Content-Encoding is an
- expensive operation. When working in high performance applications, you might consider skipping the MD5 hash
- validation for entity bodies bigger than a certain size or Content-Encoded entity bodies
- (see ``Guzzle\Plugin\Md5\Md5ValidatorPlugin`` for more information).
|