如何阅读Guzzle~6.0中的响应有效URL

Question

我一直在寻找大约2个小时,我无法弄明白如何阅读最终的回应uri.

在先前版本的PHP Guzzle中,您只需致电即可$response->getEffectiveUrl()获得它.

我期望在新版本中有类似的东西,所以最终代码如下所示:

$response = $httpClient->post('http://service.com/login', [
    'form_params' => [
        'user'   => $user,
        'padss'  => $pass,
    ]
]);

$url = $response->getEffectiveUrl();

但是在最新版本$response中现在是一个GuzzleHttp\Psr7\Response并且没有方法可以让我检索uri.

我在这里阅读了重定向(http://guzzle.readthedocs.org/en/latest/quickstart.html#redirects),但它没有说明

更新:6.1版本现在允许您轻松地执行此操作:

/sf/answers/2481046641/

谢谢@YauheniPrakopchyk

Answer 1

Guzzle 6.1解决方案就在文档中.

$client = new \GuzzleHttp\Client();

$client->get('http://some.site.com', [
    'query'   => ['get' => 'params'],
    'on_stats' => function (TransferStats $stats) use (&$url) {
        $url = $stats->getEffectiveUri();
    }
])->getBody()->getContents();

echo $url; // http://some.site.com?get=params

Answer 2

您可以通过设置track_redirects参数来检查重定向您的请求的内容:

$client = new \GuzzleHttp\Client(['allow_redirects' => ['track_redirects' => true]]);

$response = $client->request('GET', 'http://example.com');

var_dump($response->getHeader(\GuzzleHttp\RedirectMiddleware::HISTORY_HEADER));

如果有任何重定向,最后一个应该是您的有效网址,而不是您的初始网址.

您可以allow_redirects在这里阅读更多关于http://docs.guzzlephp.org/en/latest/request-options.html#allow-redirects的信息.

Answer 3

我正在使用中间件跟踪重定向链中的请求并保存最后一个.最后一个请求的uri就是你想要的.

试试这段代码:

$stack = \GuzzleHttp\HandlerStack::create();
$lastRequest = null;
$stack->push(\GuzzleHttp\Middleware::mapRequest(function (\Psr\Http\Message\RequestInterface $request) use(&$lastRequest) {
    $lastRequest = $request;
    return $request;
}));

$client = new Client([
    'handler' => $stack,
    \GuzzleHttp\RequestOptions::ALLOW_REDIRECTS => true
]);

$request = new \GuzzleHttp\Psr7\Request('GET', 'http://httpbin.org/redirect-to?url=http://stackoverflow.com');
$response = $client->send($request);
var_dump($lastRequest->getUri()->__toString());

结果:

string(24) "http://stackoverflow.com"

类示例:

class EffectiveUrlMiddleware
{
    /**
     * @var \Psr\Http\Message\RequestInterface
     */
    private $lastRequest;

    /**
     * @param \Psr\Http\Message\RequestInterface $request
     *
     * @return \Psr\Http\Message\RequestInterface
     */
    public function __invoke(\Psr\Http\Message\RequestInterface $request)
    {
        $this->lastRequest = $request;
        return $request;
    }

    /**
     * @return \Psr\Http\Message\RequestInterface
     */
    public function getLastRequest()
    {
        return $this->lastRequest;
    }
}

$stack = \GuzzleHttp\HandlerStack::create();
$effectiveYrlMiddleware = new EffectiveUrlMiddleware();
$stack->push(\GuzzleHttp\Middleware::mapRequest($effectiveYrlMiddleware));

$client = new Client([
    'handler' => $stack,
    \GuzzleHttp\RequestOptions::ALLOW_REDIRECTS => true
]);

$request = new \GuzzleHttp\Psr7\Request('GET', 'http://httpbin.org/redirect-to?url=http://stackoverflow.com');
$response = $client->send($request);
var_dump($effectiveYrlMiddleware->getLastRequest()->getUri()->__toString());

Answer 4

我认为最好使用响应头来存储这些信息.我写了一个简单的类,在X-GUZZLE-EFFECTIVE-URL头文件中保存有效的url :

https://gist.github.com/Thinkscape/43499cfafda1af8f606d

用法:

<?php
use GuzzleHttp\Client;
use Thinkscape\Guzzle\EffectiveUrlMiddleware;

// Add the middleware to stack and create guzzle client
$stack = HandlerStack::create();
$stack->push(EffectiveUrlMiddleware::middleware());
$client = new Client(['handler' => $stack]);

// Test it out!
$response = $client->get('http://bit.ly/1N2DZdP');
echo $response->getHeaderLine('X-GUZZLE-EFFECTIVE-URL');

Answer 5

接受的答案对我不起作用，但引导我前进：

$client = new \GuzzleHttp\Client();
$client->request('GET', $url, [
    'on_stats' => function (\GuzzleHttp\TransferStats $stats) {
        echo($stats->getHandlerStats()['redirect_url']);
    }
]);