WebUploader上传--分片实现

<script>
    uploadfiles(2655,"files");
    function uploadfiles(ids,folder) {
        $(function(){
            var $list = $("#the_"+ids);
            $btn = $("#Btn_"+ids);
            var uploader = WebUploader.create({
                resize: true, // 不压缩
                swf: ‘/webuploader/uploader.swf‘, // swf文件路径
                server: ‘{:url("uploadFile")}‘, // 文件接收服务端。
                pick: "#pick_"+ids, // 选择文件的按钮。可选
                chunked: true, //是否要分片处理大文件上传
                chunkSize:5*1024, //分片上传，每片2M，默认是5M
                //fileSizeLimit: 6*1024* 1024 * 1024,    // 所有文件总大小限制 6G
                fileSingleSizeLimit: 10*1024* 1024 * 1024,    // 单个文件大小限制 5 G
                formData: {
                    folder:folder  //自定义参数
                },
                auto: true
                // 选择文件后是否自动上传
                // chunkRetry : 2, //如果某个分片由于网络问题出错，允许自动重传次数
                //runtimeOrder: ‘html5,flash‘,
                // accept: {
                //   title: ‘Images‘,
                //   extensions: ‘gif,jpg,jpeg,bmp,png‘,
                //   mimeTypes: ‘image/*‘
                // }
            });


            // 文件上传成功
            uploader.on( ‘uploadSuccess‘, function( file,response) {
                // console.log(response.filePath)
                $(‘#file‘).val(response.filePath)
                // $( ‘#‘+file.id ).find(‘p.state‘).text(‘已上传‘);
                // $list.append(‘<input type="hidden" name="‘+ids+‘" value="‘+response.filePath+‘" />‘);
                //alert(response.filePath);
            });

            // 文件上传失败，显示上传出错
            uploader.on( ‘uploadError‘, function( file ) {
                $( ‘#‘+file.id ).find(‘p.state‘).text(‘上传出错‘);
            });
            // 完成上传完
            uploader.on( ‘uploadComplete‘, function( file ) {
                $( ‘#‘+file.id ).find(‘.progress‘).fadeOut();
            });

        });
    }

</script>

public function uploadFile(){
        header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
        header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
        header("Content-type: text/html; charset=gbk32");
        header("Cache-Control: no-store, no-cache, must-revalidate");
        header("Cache-Control: post-check=0, pre-check=0", false);
        header("Pragma: no-cache");
        $folder = input(‘folder‘);
        if ($_SERVER[‘REQUEST_METHOD‘] == ‘OPTIONS‘) {
            exit; // finish preflight CORS requests here
        }
        if ( !empty($_REQUEST[ ‘debug‘ ]) ) {
            $random = rand(0, intval($_REQUEST[ ‘debug‘ ]) );
            if ( $random === 0 ) {
                header("HTTP/1.0 500 Internal Server Error");
                exit;
            }
        }
        // header("HTTP/1.0 500 Internal Server Error");
        // exit;
        // 5 minutes execution time
        set_time_limit(5 * 60);
        // Uncomment this one to fake upload time
        usleep(5000);
        // Settings
        $targetDir = ‘./Public‘.DIRECTORY_SEPARATOR.‘file_material_tmp‘;            //存放分片临时目录
        if($folder){
            $uploadDir = ‘./Public‘.DIRECTORY_SEPARATOR.‘file_material‘.DIRECTORY_SEPARATOR.$folder.DIRECTORY_SEPARATOR.date(‘Ymd‘);
        }else{
            $uploadDir = ‘./Public‘.DIRECTORY_SEPARATOR.‘file_material‘.DIRECTORY_SEPARATOR.date(‘Ymd‘);    //分片合并存放目录
        }

        $cleanupTargetDir = true; // Remove old files
        $maxFileAge = 5 * 3600; // Temp file age in seconds

        // Create target dir
        if (!file_exists($targetDir)) {
            mkdir($targetDir,0777,true);
        }
        // Create target dir
        if (!file_exists($uploadDir)) {
            mkdir($uploadDir,0777,true);
        }
        // Get a file name
        if (isset($_REQUEST["name"])) {
            $fileName = $_REQUEST["name"];
        } elseif (!empty($_FILES)) {
            $fileName = $_FILES["file"]["name"];
        } else {
            $fileName = uniqid("file_");
        }
        $oldName = $fileName;

        $fileName = iconv(‘UTF-8‘,‘gb2312‘,$fileName);
        $filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
        // $uploadPath = $uploadDir . DIRECTORY_SEPARATOR . $fileName;
        // Chunking might be enabled
        $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
        $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 1;
        // Remove old temp files
        if ($cleanupTargetDir) {
            if (!is_dir($targetDir) || !$dir = opendir($targetDir)) {
                die(‘{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory111."}, "id" : "id"}‘);
            }
            while (($file = readdir($dir)) !== false) {
                $tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;
                // If temp file is current file proceed to the next
                if ($tmpfilePath == "{$filePath}_{$chunk}" || $tmpfilePath == "{$filePath}_{$chunk}") {
                    continue;
                }
                // Remove temp file if it is older than the max age and is not the current file
                if (preg_match(‘/\.(part|parttmp)$/‘, $file) && (filemtime($tmpfilePath) < time() - $maxFileAge)) {
                    unlink($tmpfilePath);
                }
            }
            closedir($dir);
        }
        // Open temp file
        if (!$out = fopen("{$filePath}_{$chunk}", "wb")) {
            die(‘{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream222."}, "id" : "id"}‘);
        }
        if (!empty($_FILES)) {
            if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"])) {
                die(‘{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file333."}, "id" : "id"}‘);
            }
            // Read binary input stream and append it to temp file
            if (!$in = fopen($_FILES["file"]["tmp_name"], "rb")) {
                die(‘{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream444."}, "id" : "id"}‘);
            }
        } else {
            if (!$in = fopen("php://input", "rb")) {
                die(‘{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream555."}, "id" : "id"}‘);
            }
        }
        while ($buff = fread($in, 4096)) {
            fwrite($out, $buff);
        }
        fclose($out);
        fclose($in);
        rename("{$filePath}_{$chunk}", "{$filePath}_{$chunk}");
        $index = 0;
        $done = true;
        for( $index = 0; $index < $chunks; $index++ ) {
            if ( !file_exists("{$filePath}_{$index}") ) {
                $done = false;
                break;
            }
        }

        if ($done) {
            $pathInfo = pathinfo($fileName);
            $hashStr = substr(md5($pathInfo[‘basename‘]),8,16);
            $hashName = time() . $hashStr . ‘.‘ .$pathInfo[‘extension‘];
            $uploadPath = $uploadDir . DIRECTORY_SEPARATOR .$hashName;
            if (!$out = fopen($uploadPath, "wb")) {
                die(‘{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream666."}, "id" : "id"}‘);
            }
            //flock($hander,LOCK_EX)文件锁
            if ( flock($out, LOCK_EX) ) {
                for( $index = 0; $index < $chunks; $index++ ) {
                    if (!$in = fopen("{$filePath}_{$index}", "rb")) {
                        break;
                    }
                    while ($buff = fread($in, 4096)) {
                        fwrite($out, $buff);
                    }
                    fclose($in);
                    unlink("{$filePath}_{$index}");
                }
                flock($out, LOCK_UN);
            }
            fclose($out);


            $response = [
                ‘success‘=>true,
                ‘oldName‘=>$oldName,
                ‘filePath‘=>$uploadPath,
//                ‘fileSize‘=>$data[‘size‘],
                ‘fileSuffixes‘=>$pathInfo[‘extension‘],          //文件后缀名
//                ‘file_id‘=>$data[‘id‘],
            ];
            return json($response);
        }

        // Return Success JSON-RPC response
        die(‘{"jsonrpc" : "2.0", "result" : null, "id" : "id"}‘);
    }