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<?php |
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namespace Tzsk\ShortenUrl; |
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class GoogleUrlShortener |
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{ |
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/** |
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* Configurations. |
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* |
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* @var array |
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*/ |
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protected $config = []; |
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/** |
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* URL Endpoint. |
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* |
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* @var string |
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*/ |
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protected $url = 'https://www.googleapis.com/urlshortener/v1/url?'; |
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/** |
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* Extended Response. |
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* |
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* @var bool |
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*/ |
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protected $extended = false; |
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/** |
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* Buffer URLs. |
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* |
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* @var array |
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*/ |
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protected static $buffer = []; |
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protected $curl; |
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/** |
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* GoogleUrlShortener constructor. |
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* |
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* @param $app |
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*/ |
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public function __construct($app) |
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{ |
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$this->config = $app->make('config')->get('url'); |
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$this->curl = curl_init(); |
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curl_setopt($this->curl, CURLOPT_URL, $this->url()); |
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curl_setopt($this->curl, CURLOPT_RETURNTRANSFER, true); |
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} |
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/** |
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* Get the API Url. |
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* |
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* @return string |
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*/ |
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protected function url() |
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{ |
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if ($this->config['key']) { |
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return $this->url . "key=" . $this->config['key'] . "&"; |
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} |
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} |
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/** |
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* Enable Extended Response. |
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* |
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* @return $this |
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*/ |
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public function extended() |
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{ |
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$this->extended = true; |
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return $this; |
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} |
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/** |
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* Shorten URL here. |
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* |
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* @param $longUrl |
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* @return mixed |
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*/ |
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public function shorten($longUrl) |
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{ |
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$response = $this->getShorternerResponse($longUrl); |
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if (! $this->extended) { |
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self::$buffer[$longUrl] = $response->id; |
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} |
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return $this->extended ? $response : $response->id; |
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} |
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/** |
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* Expand URL here. |
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* |
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* @param $shortUrl |
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* @return mixed |
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*/ |
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public function expand($shortUrl) |
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{ |
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curl_setopt($this->curl, CURLOPT_HTTPGET, true); |
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curl_setopt($this->curl, CURLOPT_URL, $this->url() . 'shortUrl=' . $shortUrl); |
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$response = json_decode(curl_exec($this->curl)); |
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return $this->extended ? $response : $response->longUrl; |
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} |
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/** |
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* Shortener Request. |
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* |
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* @param $longUrl |
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* @return mixed |
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*/ |
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private function getShorternerResponse($longUrl) |
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{ |
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if (!$this->extended && !empty(self::$buffer[$longUrl])) { |
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return self::$buffer[$longUrl]; |
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} |
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curl_setopt($this->curl, CURLOPT_POST, count(compact('longUrl'))); |
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curl_setopt($this->curl, CURLOPT_POSTFIELDS, json_encode(compact('longUrl'))); |
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curl_setopt($this->curl, CURLOPT_HTTPHEADER, ['Content-Type: application/json']); |
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return json_decode(curl_exec($this->curl)); |
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} |
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/** |
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* Destroy Curl. |
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*/ |
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public function __destruct() |
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{ |
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curl_close($this->curl); |
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$this->curl = null; |
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} |
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} |
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