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<?php
namespace SilverStripe\CrazyEgg;
use SilverStripe\Control\HTTPRequest;
use SilverStripe\Control\HTTPResponse;
use SilverStripe\Control\Middleware\HTTPMiddleware;
use SilverStripe\View\ViewableData;
class CrazyEggMiddleware implements HTTPMiddleware
{
/**
* @var bool
*/
protected static $installed = false;
* @var ViewableData
protected $tagProvider;
* @param ViewableData $tagProvider
public function setTagProvider(ViewableData $tagProvider)
$this->tagProvider = $tagProvider;
}
public function process(HTTPRequest $request, callable $delegate)
/** @var HTTPResponse $response */
$response = $delegate($request);
$mime = $response->getHeader('Content-Type');
if (!$mime || strpos($mime, 'text/html') !== false) {
$tags = $this->tagProvider->forTemplate();
if ($tags && !static::$installed) {
$content = $response->getBody();
$content = preg_replace("/(<\\/head[^>]*>)/i", $tags . "\\1", $content);
$response->setBody($content);
static::$installed = true;
return $response;
silverstripe /
silverstripe-crazy-egg
