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<?php |
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namespace Famdirksen\LaravelUTMUrls\Middleware; |
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use Closure; |
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class SetUTMUrls |
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{ |
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/** |
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* Handle an incoming request. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @param \Closure $next |
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* @return mixed |
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*/ |
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public function handle($request, Closure $next) |
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{ |
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$response = $next($request); |
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if (config('utm-urls.enabled', false)) { |
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if ($this->hasToAppend($request)) { |
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$response->setContent($this->appendUtmsToString($response->getContent())); |
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} |
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} |
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return $response; |
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} |
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/** |
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* Check if we need to set the UTM attributes. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @return bool |
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*/ |
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public function hasToAppend($request) |
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{ |
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if (! $request->headers->has('x-do-not-append-campagne')) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Append the UTM attributes to all urls. |
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* |
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* @param $string |
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* @return null|string|string[] |
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*/ |
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protected function appendUtmsToString($string) |
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{ |
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$regex = '#(<a.*?href=")([^"]*)("[^>]*?>)#i'; |
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return preg_replace_callback($regex, function ($match) { |
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$url = $match[2]; |
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//check if a href url is in skip link |
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$aHrefLink = parse_url($url); |
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if (isset($aHrefLink['host']) && ! empty($aHrefLink['host']) && in_array($aHrefLink['host'], config('utm-urls.skipped_hosts', []))) { |
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return $match[0]; |
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} else { |
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//check if there is a # in the url |
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if (strpos($url, '#') === false) { |
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return $match[0]; |
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} else { |
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//check if there is already an ? in the url |
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if (strpos($url, '?') === false) { |
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$counter = 0; |
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} else { |
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$counter = 1; |
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} |
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//set all the utms |
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foreach (config('utm-urls.utms', []) as $utm => $value) { |
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if (! empty($value)) { |
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if ($counter == 0) { |
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$url .= '?'; |
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} else { |
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$url .= '&'; |
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} |
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$url .= 'utm_'.str_slug(strtolower($utm)).'='.$value; |
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$counter++; |
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} |
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} |
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return $match[1].$url.$match[3]; |
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} |
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} |
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}, $string); |
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} |
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} |
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Famdirksen /
Laravel-UTM-URLs
