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253 lines
8.2 KiB
253 lines
8.2 KiB
<?php
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namespace longbingcore\tools;
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use ZipArchive;
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class LongbingFile
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{
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/**
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* @param $url
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* @param string $folderPath = './data/upgradex/'
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* @param null $fileName 有文件名就使用,没有就随机一个名字(主要 不带后缀)
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* @param string $ext 文件后缀
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* @功能说明:下载文件
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* @author jingshuixian
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* @DataTime: 2020-06-06 0:33
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*/
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public static function downloadFile($url, $folderPath ,$fileName = null , $ext='.zip' ) {
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set_time_limit(24 * 60 * 60);
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$target_dir = $folderPath . '';
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if (!is_dir($target_dir)) {
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mkdir($target_dir, 0777, true);
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}
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$newfname = $fileName ? $fileName .$ext : date('Ymd') . rand(1000, 10000000) . uniqid() . $ext;
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$newfname = $target_dir . $newfname;
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$file = @fopen($url, "rb");
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if ($file) {
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$newf = fopen($newfname, "wb");
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if ($newf) while (!feof($file)) {
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fwrite($newf, fread($file, 1024 * 8) , 1024 * 8);
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}
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fclose($file);
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if ($newf) {
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fclose($newf);
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}
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}else{
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return false ;
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}
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return $newfname;
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}
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/**
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* @param $filename
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* @param $toFilepath
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* @param null $password 解压密码
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* @功能说明: 解压文件
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* @author jingshuixian
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* @DataTime: 2020-06-05 14:44
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*/
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public static function unzip($filename , $toFilepath , $password = null){
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$zip = new ZipArchive();
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$res = $zip->open($filename);
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if ($res === true){
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$password && $zip->setPassword($password); //解压密码
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$zip->extractTo($toFilepath);
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$zip->close();
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}
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return true ;
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}
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/**
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* @param $fileName
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* @param string $fancyName
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* @param bool $forceDownload
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* @param int $speedLimit
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* @param string $contentType
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* @功能说明: 函数参数: 服务器文件路径，下载文件名字(默认为服务器文件名)，是否许可用户下载方式(默认可选)，速度限制(默认自动)，文件类型(默认所有)
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* 使用方法
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* $file_path = './a.zip'; // 只能是本地服务器文件, 多大的文件都支持!!
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* down_file($file_path);
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* @author jingshuixian
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* @DataTime: 2020-06-05 23:50
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*/
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function downLocationServiceFile($fileName, $fancyName = '', $forceDownload = true, $speedLimit = 0, $contentType = '') {
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if (!is_readable($fileName))
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{
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header("HTTP/1.1 404 Not Found");
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return false;
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}
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$fileStat = stat($fileName);
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$lastModified = $fileStat['mtime'];
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$md5 = md5($fileStat['mtime'] .'='. $fileStat['ino'] .'='. $fileStat['size']);
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$etag = '"' . $md5 . '-' . crc32($md5) . '"';
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header('Last-Modified: ' . gmdate("D, d M Y H:i:s", $lastModified) . ' GMT');
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header("ETag: $etag");
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if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $lastModified)
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{
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header("HTTP/1.1 304 Not Modified");
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return true;
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}
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if (isset($_SERVER['HTTP_IF_UNMODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_UNMODIFIED_SINCE']) < $lastModified)
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{
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header("HTTP/1.1 304 Not Modified");
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return true;
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}
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if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] == $etag)
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{
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header("HTTP/1.1 304 Not Modified");
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return true;
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}
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if ($fancyName == '')
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{
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$fancyName = basename($fileName);
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}
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if ($contentType == '')
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{
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$contentType = 'application/octet-stream';
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}
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$fileSize = $fileStat['size'];
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$contentLength = $fileSize;
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$isPartial = false;
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if (isset($_SERVER['HTTP_RANGE']))
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{
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if (preg_match('/^bytes=(\d*)-(\d*)$/', $_SERVER['HTTP_RANGE'], $matches))
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{
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$startPos = $matches[1];
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$endPos = $matches[2];
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if ($startPos == '' && $endPos == '')
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{
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return false;
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}
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if ($startPos == '')
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{
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$startPos = $fileSize - $endPos;
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$endPos = $fileSize - 1;
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}
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else if ($endPos == '')
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{
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$endPos = $fileSize - 1;
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}
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$startPos = $startPos < 0 ? 0 : $startPos;
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$endPos = $endPos > $fileSize - 1 ? $fileSize - 1 : $endPos;
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$length = $endPos - $startPos + 1;
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if ($length < 0)
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{
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return false;
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}
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$contentLength = $length;
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$isPartial = true;
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}
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}
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// send headers
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if ($isPartial)
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{
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header('HTTP/1.1 206 Partial Content');
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header("Content-Range: bytes $startPos-$endPos/$fileSize");
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}
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else
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{
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header("HTTP/1.1 200 OK");
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$startPos = 0;
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$endPos = $contentLength - 1;
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}
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header('Pragma: cache');
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header('Cache-Control: public, must-revalidate, max-age=0');
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header('Accept-Ranges: bytes');
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header('Content-type: ' . $contentType);
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header('Content-Length: ' . $contentLength);
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if ($forceDownload)
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{
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header('Content-Disposition: attachment; filename="' . rawurlencode($fancyName). '"');
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}
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header("Content-Transfer-Encoding: binary");
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$bufferSize = 2048;
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if ($speedLimit != 0)
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{
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$packetTime = floor($bufferSize * 1000000 / $speedLimit);
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}
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$bytesSent = 0;
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$fp = fopen($fileName, "rb");
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fseek($fp, $startPos);
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while ($bytesSent < $contentLength && !feof($fp) && connection_status() == 0 )
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{
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if ($speedLimit != 0)
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{
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list($usec, $sec) = explode(" ", microtime());
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$outputTimeStart = ((float)$usec + (float)$sec);
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}
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$readBufferSize = $contentLength - $bytesSent < $bufferSize ? $contentLength - $bytesSent : $bufferSize;
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$buffer = fread($fp, $readBufferSize);
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echo $buffer;
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ob_flush();
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flush();
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$bytesSent += $readBufferSize;
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if ($speedLimit != 0)
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{
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list($usec, $sec) = explode(" ", microtime());
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$outputTimeEnd = ((float)$usec + (float)$sec);
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$useTime = ((float) $outputTimeEnd - (float) $outputTimeStart) * 1000000;
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$sleepTime = round($packetTime - $useTime);
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if ($sleepTime > 0)
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{
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usleep($sleepTime);
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}
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}
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}
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return true;
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}
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/**
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* @param $path
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* @param string $mode
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* @功能说明: 创建目录
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* @author jingshuixian
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* @DataTime: 2020-06-06 0:11
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*/
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public static function createDir($path , $mode = '0777'){
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if(!is_dir($path)){
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return mkdir($path,$mode);
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}
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}
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/**
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* @param $path
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* @功能说明: 删除指定目录下的文件
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* @author jingshuixian
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* @DataTime: 2020-06-06 0:14
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*/
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public static function deldir($path){
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//如果是目录则继续
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if(is_dir($path)){
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//扫描一个文件夹内的所有文件夹和文件并返回数组
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$p = scandir($path);
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foreach($p as $val){
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//排除目录中的.和..
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if($val !="." && $val !=".."){
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//如果是目录则递归子目录，继续操作
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if(is_dir($path.$val)){
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//子目录中操作删除文件夹和文件
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LongbingFile::deldir($path.$val.'/');
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//目录清空后删除空文件夹
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@rmdir($path.$val.'/');
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}else{
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//如果是文件直接删除
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unlink($path.$val);
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}
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}
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}
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}
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}
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} |