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<?php |
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namespace Psr7Middlewares\Middleware; |
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use Psr7Middlewares\Middleware; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr7Middlewares\Utils; |
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class GoogleAnalytics |
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{ |
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use Utils\HtmlInjectorTrait; |
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/** |
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* @var string The site's ID |
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*/ |
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private $siteId; |
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/** |
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* Constructor. Set the site's ID. |
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* |
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* @param string $siteId |
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*/ |
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public function __construct($siteId) |
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{ |
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$this->siteId = (string) $siteId; |
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} |
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/** |
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* Execute the middleware. |
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* |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* @param callable $next |
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* |
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* @return ResponseInterface |
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*/ |
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View Code Duplication |
public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next) |
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{ |
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if (!Middleware::hasAttribute($request, FormatNegotiator::KEY)) { |
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throw new RuntimeException('The GoogleAnalytics middleware needs FormatNegotiator executed before'); |
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} |
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if (FormatNegotiator::getFormat($request) === 'html' && !Utils\Helpers::isAjax($request)) { |
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$response = $this->inject($response, $this->getCode()); |
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} |
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return $next($request, $response); |
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} |
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/** |
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* Returns the google code. |
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* https://github.com/h5bp/html5-boilerplate/blob/master/src/index.html. |
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* |
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* @return string |
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*/ |
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private function getCode() |
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{ |
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return <<<GA |
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<script> |
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(function(b,o,i,l,e,r){b.GoogleAnalyticsObject=l;b[l]||(b[l]= |
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function(){(b[l].q=b[l].q||[]).push(arguments)});b[l].l=+new Date; |
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e=o.createElement(i);r=o.getElementsByTagName(i)[0]; |
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e.src='https://www.google-analytics.com/analytics.js'; |
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r.parentNode.insertBefore(e,r)}(window,document,'script','ga')); |
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ga('create','{$this->siteId}','auto');ga('send','pageview'); |
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</script> |
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GA; |
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} |
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} |
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oscarotero /
psr7-middlewares
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.