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<?php |
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namespace Irazasyed\VideoDownloader\Providers; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\Exception\RequestException; |
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use GuzzleHttp\Promise; |
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use GuzzleHttp\Promise\PromiseInterface; |
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use GuzzleHttp\RequestOptions; |
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use Irazasyed\VideoDownloader\Exceptions\VideoDownloaderException; |
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/** |
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* Abstract Provider. |
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*/ |
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abstract class Provider implements ProviderInterface |
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{ |
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/** |
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* @var Client |
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*/ |
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protected $client; |
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/** |
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* @var PromiseInterface[] |
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*/ |
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private static $promises = []; |
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/** |
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* @var string |
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*/ |
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protected $body; |
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/** |
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* VideoLinkGenerator constructor. |
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* |
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* @param Client|null $client |
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*/ |
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public function __construct(Client $client = null) |
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{ |
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$this->client = $client ?: new Client(); |
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} |
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/** |
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* Unwrap Promises. |
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*/ |
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public function __destruct() |
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{ |
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Promise\unwrap(self::$promises); |
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} |
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/** |
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* @param $url |
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*/ |
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abstract public function getVideoInfo($url); |
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/** |
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* Sets HTTP client. |
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* |
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* @param $client |
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* |
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* @return $this |
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*/ |
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public function setClient($client) |
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{ |
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$this->client = $client; |
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return $this; |
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} |
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/** |
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* Gets HTTP client for internal class use. |
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* |
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* @return Client |
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*/ |
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public function getClient() |
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{ |
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return $this->client; |
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} |
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/** |
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* Returns Raw Response Body. |
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* |
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* @return string |
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*/ |
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public function getBody() |
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{ |
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return $this->body; |
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} |
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/** |
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* Get Page Source Code. |
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* |
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* @param $url |
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* |
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* @throws VideoDownloaderException |
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*/ |
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public function getSourceCode($url) |
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{ |
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$response = $this->httpRequest($url); |
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$status = $response->getStatusCode(); |
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if ($status === 200) { |
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return $this->body = $response->getBody(); |
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} |
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throw new VideoDownloaderException('Something went wrong, HTTP Status Code Returned: '.$status); |
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} |
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/** |
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* Download remote file from server |
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* and save it locally using HTTP Client. |
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* |
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* @param string $url The URL to Remote File to Download. |
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* @param string $dstFilename Destination Filename (Accepts File Path too). |
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* @param bool $isAsyncRequest |
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* |
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* @return string |
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*/ |
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public function download($url, $dstFilename, $isAsyncRequest = false) |
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{ |
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$baseDir = dirname($dstFilename); |
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if (!is_writable($baseDir)) { |
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@mkdir($baseDir, 0755, true); |
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} |
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$this->httpRequest($url, ['sink' => $dstFilename], $isAsyncRequest); |
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return ['file_path' => $dstFilename]; |
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} |
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/** |
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* Make a HTTP Request. |
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* |
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* @param $url |
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* @param array $options |
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* @param bool|false $isAsyncRequest |
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* |
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* @return mixed |
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*/ |
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private function httpRequest($url, array $options = [], $isAsyncRequest = false) |
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{ |
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if ($url == null || trim($url) == '') { |
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return 'URL was invalid.'; |
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} |
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$options = $this->getOptions($this->defaultHeaders(), $options, $isAsyncRequest); |
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try { |
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$response = $this->client->getAsync($url, $options); |
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if ($isAsyncRequest) { |
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self::$promises[] = $response; |
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} else { |
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$response = $response->wait(); |
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} |
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} catch (RequestException $e) { |
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return 'There was an error while processing the request'; |
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} |
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return $response; |
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} |
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/** |
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* Prepares and returns request options. |
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* |
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* @param array $headers |
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* @param $options |
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* @param $isAsyncRequest |
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* |
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* @return array |
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*/ |
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private function getOptions(array $headers, $options = [], $isAsyncRequest = false) |
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{ |
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$default_options = [ |
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RequestOptions::HEADERS => $headers, |
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RequestOptions::SYNCHRONOUS => !$isAsyncRequest, |
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]; |
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return array_merge($default_options, $options); |
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} |
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/** |
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* Returns Default Headers for HTTP Client. |
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* |
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* @return array |
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*/ |
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protected function defaultHeaders() |
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{ |
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return [ |
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'User-Agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36', |
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'Accept-Language' => 'en-US,en;q=0.8,sr;q=0.6,pt;q=0.4', |
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]; |
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} |
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/** |
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* Decode Unicode Sequences. |
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* |
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* @param $str |
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* |
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* @return mixed |
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*/ |
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protected function decodeUnicode($str) |
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{ |
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return preg_replace_callback( |
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'/\\\\u([0-9a-f]{4})/i', |
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[$this, 'replace_unicode_escape_sequence'], |
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$str |
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); |
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} |
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/** |
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* Cleanup string to readible text. |
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* |
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* @param string $str |
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* |
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* @return string |
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*/ |
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protected function cleanStr($str) |
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{ |
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return html_entity_decode(strip_tags($str), ENT_QUOTES, 'UTF-8'); |
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} |
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/** |
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* @param $uni |
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* |
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* @return bool|mixed|string |
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*/ |
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protected function replace_unicode_escape_sequence($uni) |
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{ |
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return mb_convert_encoding(pack('H*', $uni[1]), 'UTF-8', 'UCS-2BE'); |
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} |
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} |
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If you suppress an error, we recommend checking for the error condition explicitly: