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<?php |
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namespace EdwinLuijten\Ekko\Broadcast\Broadcasters; |
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use EdwinLuijten\Ekko\Broadcast\Identity; |
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use EdwinLuijten\Ekko\Broadcast\StrUtil; |
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abstract class AbstractBroadcaster |
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{ |
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/** |
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* @var array |
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*/ |
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protected $channels = []; |
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/** |
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* @param string $channel |
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* @param callable $callback |
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* @return $this |
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*/ |
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public function channel($channel, callable $callback) |
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{ |
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$this->channels[$channel] = $callback; |
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return $this; |
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} |
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/** |
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* @param Identity $identity |
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* @param string $channel |
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* @return mixed |
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* @throws \Exception |
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*/ |
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protected function verifyThatIdentityCanAccessChannel(Identity $identity, $channel) |
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{ |
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foreach ($this->channels as $key => $callback) { |
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if (!StrUtil::is($key, $channel)) { |
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continue; |
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} |
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$parameters = $this->getAuthenticationParameters($key, $channel); |
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if ($response = $callback($identity, ...$parameters)) { |
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return $this->validAuthenticationResponse($identity, $response); |
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} |
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} |
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throw new \Exception('Unauthorized', 403); |
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} |
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/** |
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* @param string $key |
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* @param string $channel |
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* @return array |
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*/ |
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protected function getAuthenticationParameters($key, $channel) |
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{ |
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if (!StrUtil::contains($key, '*')) { |
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return []; |
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} |
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$pattern = str_replace('\*', '([^\.]+)', preg_quote($key)); |
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if (preg_match('/^' . $pattern . '/', $channel, $keys)) { |
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array_shift($keys); |
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return $keys; |
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} |
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return []; |
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} |
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/** |
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* @param array $channels |
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* @return array |
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*/ |
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protected function formatChannels(array $channels) |
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{ |
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return array_map(function ($channel) { |
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return (string)$channel; |
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}, $channels); |
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} |
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} |
Edwin-Luijten /
ekko-broadcast
