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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 Piwik |
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{ |
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use Utils\HtmlInjectorTrait; |
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use Utils\AttributeTrait; |
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private $options = [ |
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['trackPageView'], |
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['enableLinkTracking'], |
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]; |
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/** |
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* @var int|null The site's ID |
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*/ |
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private $siteId = 1; |
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/** |
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* @var string|null The Piwik url |
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*/ |
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private $piwikUrl; |
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/** |
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* Constructor.Set the Piwik's url. |
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* |
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* @param string $piwikUrl |
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*/ |
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public function __construct($piwikUrl = null) |
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{ |
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if ($piwikUrl !== null) { |
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$this->piwikUrl($piwikUrl); |
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} |
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} |
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/** |
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* Set the site's id. |
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* |
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* @param int $siteId |
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* |
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* @return self |
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*/ |
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public function siteId($siteId) |
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{ |
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$this->siteId = $siteId; |
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return $this; |
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} |
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/** |
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* Set the piwik url. |
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* |
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* @param string $url |
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* |
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* @return self |
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*/ |
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public function piwikUrl($url) |
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{ |
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$this->piwikUrl = (string) $url; |
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//ensure the url is ending by "/" |
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if (substr($this->piwikUrl, -1) !== '/') { |
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$this->piwikUrl .= '/'; |
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} |
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return $this; |
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} |
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/** |
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* Add an option. |
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* |
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* ... |
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* |
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* @return self |
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*/ |
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public function addOption() |
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{ |
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$this->options[] = func_get_args(); |
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return $this; |
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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 $response; |
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} |
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/** |
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* Returns the piwik code. |
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* |
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* @return string |
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*/ |
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private function getCode() |
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{ |
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$_paq = ''; |
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foreach ($this->options as $option) { |
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$option[0] = "'".$option[0]."'"; |
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$_paq .= sprintf('_paq.push([%s]);', implode(',', $option)); |
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} |
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return <<<PWK |
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<script> |
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var _paq = _paq || []; |
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{$_paq} |
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(function() { |
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var u="{$this->piwikUrl}"; |
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_paq.push(['setTrackerUrl', u+'piwik.php']); |
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_paq.push(['setSiteId', {$this->siteId}]); |
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var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; |
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g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s); |
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})(); |
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</script> |
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<noscript><p><img src="{$this->piwikUrl}piwik.php?idsite={$this->siteId}" style="border:0;" alt="" /></p></noscript> |
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PWK; |
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} |
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} |
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oscarotero /
psr7-middlewares
