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<?php |
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namespace Spatie\Referer; |
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use Illuminate\Http\Request; |
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use Spatie\Referer\Helpers\Url; |
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use Illuminate\Contracts\Session\Session; |
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use Spatie\Referer\Exceptions\InvalidConfiguration; |
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class Referer |
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{ |
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/** @var string */ |
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protected $key; |
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/** @var \Illuminate\Contracts\Session\Session */ |
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protected $session; |
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public function __construct(string $key, Session $session) |
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{ |
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if (empty($key)) { |
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throw InvalidConfiguration::emptyKey(); |
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} |
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$this->key = $key; |
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$this->session = $session; |
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} |
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public function get(): string |
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{ |
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return $this->session->get($this->key, ''); |
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} |
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public function forget() |
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{ |
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$this->session->forget($this->key); |
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} |
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public function put(string $referer) |
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{ |
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return $this->session->put($this->key, $referer); |
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} |
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public function putFromRequest(Request $request) |
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{ |
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$referer = $this->determineFromRequest($request); |
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if (! empty($referer)) { |
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$this->put($referer); |
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} |
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} |
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protected function determineFromRequest(Request $request): string |
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{ |
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if ($this->shouldCapture('utm_source') && $request->has('utm_source')) { |
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return $request->get('utm_source'); |
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} |
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if (! $this->shouldCapture('referer_header')) { |
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return ''; |
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} |
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$referer = $request->header('referer', ''); |
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if (empty($referer)) { |
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return ''; |
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} |
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$refererHost = Url::host($referer); |
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if (empty($refererHost)) { |
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return ''; |
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} |
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if ($refererHost === $request->getHost()) { |
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return ''; |
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} |
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return $refererHost; |
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} |
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protected function shouldCapture(string $source): bool |
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{ |
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return config("referer.sources.{$source}", false); |
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} |
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} |
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spatie /
laravel-referer
