Chunk File Upload With Php

Hi All

One issue that i have come across quite a lot with the titanium framework and especially android is outofmemory and i have other posts on the forum and the solution is definitely chunk file upload management.

I am sure this would benefit a lot of other titanium users being able to do this, i am looking for a example and people to help out in the community building a example of chunk file upload with php.

So here is what i have so far from code around the web i have a snippet i have a titanium http upload example below

var chunk_size = 1024 * 1024; // 1Kb * 1024 = 1MB
var chunk_no = 10; // Which chunk we want
var file = Ti.Filesystem.getFile( 'file.mp4' );
var stream = file.open( Ti.Filesystem.MODE_READ );
 
// Scrub through the stream till we're up to the part we need
for (i = 0; i < chunk_no; i++) {
    var buffer = Ti.createBuffer({length: chunk_size});
    // This reads chunk_size bytes from where it left of in the last loop, puts it at the start of the buffer
    var bytes_read = stream.read( buffer, 0, chunk_size );
 
    // Ti.API.info('bytes_read: '+bytes_read);
 
    // If it's not the chunk we want, release the buffer memory
    if (i < chunk_no) {
        buffer.release();
        buffer = null;
    }
}
// This now contains the chunk we want
var blob = buffer.toBlob();

So i take it this needs to be wrapped around a http client upload maintaining connection.

Now i have been looking around the web for examples of a php script that handles chunk file upload and i have used pluploader in the past and i know this handles chunk file upload the php script is below.

<?php
/**
 * upload.php
 *
 * Copyright 2013, Moxiecode Systems AB
 * Released under GPL License.
 *
 * License: http://www.plupload.com/license
 * Contributing: http://www.plupload.com/contributing
 */
 
#!! IMPORTANT: 
#!! this file is just an example, it doesn't incorporate any security checks and 
#!! is not recommended to be used in production environment as it is. Be sure to 
#!! revise it and customize to your needs.
 
 
// Make sure file is not cached (as it happens for example on iOS devices)
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
 
/* 
// Support CORS
header("Access-Control-Allow-Origin: *");
// other CORS headers if any...
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
    exit; // finish preflight CORS requests here
}
*/
 
// 5 minutes execution time
@set_time_limit(5 * 60);
 
// Uncomment this one to fake upload time
// usleep(5000);
 
// Settings
$targetDir = ini_get("upload_tmp_dir") . DIRECTORY_SEPARATOR . "plupload";
//$targetDir = 'uploads';
$cleanupTargetDir = true; // Remove old files
$maxFileAge = 5 * 3600; // Temp file age in seconds
 
 
// Create target dir
if (!file_exists($targetDir)) {
    @mkdir($targetDir);
}
 
// Get a file name
if (isset($_REQUEST["name"])) {
    $fileName = $_REQUEST["name"];
} elseif (!empty($_FILES)) {
    $fileName = $_FILES["file"]["name"];
} else {
    $fileName = uniqid("file_");
}
 
$filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
 
// Chunking might be enabled
$chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
$chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 0;
 
 
// 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 directory."}, "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}.part") {
            continue;
        }
 
        // Remove temp file if it is older than the max age and is not the current file
        if (preg_match('/\.part$/', $file) && (filemtime($tmpfilePath) < time() - $maxFileAge)) {
            @unlink($tmpfilePath);
        }
    }
    closedir($dir);
}   
 
 
// Open temp file
if (!$out = @fopen("{$filePath}.part", $chunks ? "ab" : "wb")) {
    die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "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 file."}, "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 stream."}, "id" : "id"}');
    }
} else {    
    if (!$in = @fopen("php://input", "rb")) {
        die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
    }
}
 
while ($buff = fread($in, 4096)) {
    fwrite($out, $buff);
}
 
@fclose($out);
@fclose($in);
 
// Check if file has been uploaded
if (!$chunks || $chunk == $chunks - 1) {
    // Strip the temp .part suffix off 
    rename("{$filePath}.part", $filePath);
}
 
// Return Success JSON-RPC response
die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');

What i am trying to do (and failing) is to get these two to work together so i can handle chunk file upload within my apps helping out loads with memory issues.

Can anyone help me...