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<?php |
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namespace PierInfor\GeoLite; |
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/** |
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* Downloader class let download files |
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*/ |
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class Downloader implements Interfaces\DownloaderInterface |
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{ |
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/** |
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* factory adapter |
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* |
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* @var String |
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*/ |
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private $adapter; |
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/** |
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* Download progress percent |
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* |
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* @var Integer |
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*/ |
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private $progress; |
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/** |
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* Download progress percent |
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* |
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* @var Boolean |
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*/ |
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private $showProgress; |
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/** |
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* Instanciate |
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*/ |
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public function __construct() |
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{ |
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$this->showProgress = false; |
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$this->setAdapter(); |
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} |
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/** |
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* set adapter for download factory |
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* |
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* @param string $adapter |
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* @return Downloader |
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*/ |
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public function setAdapter(string $adapter = self::ADAPTER_CURL): Downloader |
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{ |
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if (!in_array($adapter, self::ADAPTERS)) { |
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throw new \Exception('Downloader - bad adapter'); |
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} |
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$this->adapter = $adapter; |
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return $this; |
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} |
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/** |
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* download factory |
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* |
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* @param string $url |
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* @param string $toFilename |
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* @return Downloader |
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*/ |
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public function download(string $url, string $toFilename): Downloader |
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{ |
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switch ($this->adapter) { |
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case self::ADAPTER_CONTENTS: |
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$this->contentsDownload($url, $toFilename); |
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break; |
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case self::ADAPTER_CURL: |
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$this->curlDownload($url, $toFilename); |
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break; |
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} |
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return $this; |
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} |
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/** |
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* download a file using file_get_content |
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* |
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* @param string $url |
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* @param string $toFilename |
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* @return Downloader |
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*/ |
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public function contentsDownload(string $url, string $toFilename): Downloader |
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{ |
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$headers = get_headers($url); |
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$statusCode = 0; |
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if (isset($headers[0])) { |
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$header = $headers[0]; |
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preg_match("/^HTTP.+\s(\d\d\d)\s/", $header, $m); |
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$statusCode = $m[1]; |
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} |
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if ($statusCode != 200) { |
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throw new \Exception('Bad http code : ' . $statusCode); |
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} |
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file_put_contents($toFilename, file_get_contents($url)); |
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return $this; |
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} |
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/** |
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* enable progress output when using curlDownload |
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* |
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* @param boolean $show |
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* @return Downloader |
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*/ |
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public function displayProgress(bool $show = false): Downloader |
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{ |
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$this->showProgress = $show; |
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return $this; |
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} |
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/** |
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* download a file using curl |
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* |
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* @param string $url |
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* @param string $toFilename |
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* @return Downloader |
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*/ |
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public function curlDownload(string $url, string $toFilename): Downloader |
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{ |
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touch($toFilename, 0777); |
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$handle = fopen($toFilename, 'wba+'); |
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$handleOk = false !== $handle; |
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$cha = curl_init(); |
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if (false !== $cha && $handleOk) { |
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curl_setopt($cha, CURLOPT_VERBOSE, false); |
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curl_setopt($cha, CURLOPT_URL, $url); |
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curl_setopt($cha, CURLOPT_POST, 0); |
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curl_setopt($cha, CURLOPT_TIMEOUT, 300); |
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curl_setopt($cha, CURLOPT_HEADER, false); |
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curl_setopt($cha, CURLOPT_USERAGENT, self::USER_AGENT); |
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curl_setopt($cha, CURLOPT_BUFFERSIZE, self::BUFFER_SIZE); |
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curl_setopt($cha, CURLOPT_RETURNTRANSFER, 1); |
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curl_setopt($cha, CURLOPT_FILE, $handle); |
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curl_setopt($cha, CURLOPT_FOLLOWLOCATION, true); |
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curl_setopt($cha, CURLOPT_BINARYTRANSFER, true); |
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curl_setopt($cha, CURLOPT_FOLLOWLOCATION, true); |
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curl_setopt($cha, CURLOPT_NOPROGRESS, false); |
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curl_setopt($cha, CURLOPT_PROGRESSFUNCTION, [$this, self::DOWNLOAD_CALLBACK]); |
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curl_setopt($cha, CURLOPT_AUTOREFERER, true); |
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curl_exec($cha); |
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if (!curl_errno($cha)) { |
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$statusCode = curl_getinfo($cha, CURLINFO_HTTP_CODE); |
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if ($statusCode != 200) { |
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throw new \Exception('Bad http code : ' . $statusCode); |
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} |
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} |
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curl_close($cha); |
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} |
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if (is_resource($handle)) { |
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fclose($handle); |
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} |
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return $this; |
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} |
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/** |
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* download progress callback |
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* |
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* @param mixed $resource |
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* @param integer $download_size |
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* @param integer $downloaded |
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* @param integer $upload_size |
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* @param integer $uploaded |
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* @return void |
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*/ |
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protected function downloadProgress($resource, int $download_size, int $downloaded, int $upload_size, int $uploaded) |
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{ |
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if ($download_size > 0) { |
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$this->progress = ($downloaded / $download_size) * 100; |
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if ($this->showProgress === true) { |
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echo self::WHEELS[$this->progress % 4] |
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. ' ' . $this->getProgress() . "%\r"; |
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} |
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} |
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} |
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/** |
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* returns progress value |
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* |
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* @return integer |
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*/ |
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2 |
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protected function getProgress(): int |
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{ |
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return $this->progress; |
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} |
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} |
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pierre-fromager /
geoliteip
