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<?php |
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namespace 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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use Utils\AttributeTrait; |
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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 $next) |
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{ |
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$response = $next($request, $response); |
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if (Utils\Helpers::getMimeType($response) === 'text/html' && !Utils\Helpers::isAjax($request)) { |
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return $this->inject($response, $this->getCode()); |
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} |
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return $response; |
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} |
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/** |
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* Returns the google code. |
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* https://github.com/h5bp/html5-boilerplate/blob/master/src/index.html. |
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* |
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* @return string |
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*/ |
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private function getCode() |
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{ |
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return <<<GA |
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<script> |
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(function(b,o,i,l,e,r){b.GoogleAnalyticsObject=l;b[l]||(b[l]= |
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function(){(b[l].q=b[l].q||[]).push(arguments)});b[l].l=+new Date; |
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e=o.createElement(i);r=o.getElementsByTagName(i)[0]; |
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e.src='https://www.google-analytics.com/analytics.js'; |
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r.parentNode.insertBefore(e,r)}(window,document,'script','ga')); |
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ga('create','{$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
