^^&&^^

Edit File: FileUploader.inc

<?php
/**
 * Author:		Shlomi
 * Date:		Sep 5, 2017 10:18:08 AM
 * Founder:		Shlomi Bazak (SBZsoft) (c)
 * File: 		FileUploader.inc
 *  
 * Description:
 *		
 */
 namespace B2\Entities;
 
use B2\Exceptions\FileNotPresentException;
use B2\Http\B2Client;
use B2\FS\FileReader;
use B2\Exceptions\UploadFailedException;

// No direct access.
defined("__NSS__") or die("Restrected Access.");

class FileUploader {
	
	const CHUNK_SIZE = 1000000000;
	
	/** @var B2Client */
	private $_client;
	
	public function __construct(B2Client $client){
		$this->_client = $client;
	}
	
	/**
	 * 
	 * @param FileReader $reader
	 * @param Bucket $bucket
	 * @param String $path
	 * @param int $retries
	 * @throws \Exception if faild after retries
	 * @return \B2\Entities\File
	 */
	private function _uploadSmallFile(FileReader $reader, Bucket $bucket, $path, $retries){
		$params = [ 'bucketId' => $bucket->getId() ];
		
		//$body = $reader->getContents();
		$hash = sha1_file($reader->getName());
		
		$headers = [
			'Content-Type' => $reader->getConetnType(),
			'Content-Length' => $reader->getSize(),
			'X-Bz-File-Name' => $path,
			'X-Bz-Content-Sha1' => $hash,
			'X-Bz-Info-src_last_modified_millis' => $reader->getModificationTime() * 1000
		];
		$max=0;
		$success=false;
		$last_exception=null;
		while(!$success && $max++<=$retries){
			try {
				$data = $this->_client->requestApi(B2Api::GET_UPLOAD_URL, $params);
				$headers['Authorization'] = $data['authorizationToken'];
				$data = $this->_client->_requestJson(
						B2Client::METHOD_POST,
						$data['uploadUrl'],
						[ 'headers' => $headers, 'body' => $reader->getFileHandle() ]
				);
				$success = true;
			}catch(\Exception $e){
				$last_exception = $e;
			}
			gc_collect_cycles(); // Memory leak .. Fix needed in PHP level of nasted functions and recursion. 
		}
		if(!$success) {
			if($last_exception) throw $last_exception;
			throw new UploadFailedException("Upload failed for {$reader->getName()}.");
		}
		return new File($data);
	}
	
	/**
	 * Upload file to BB.
	 * @param String $localFile
	 * @param Bucket $bucket
	 * @param String $path
	 * @param int $retries
	 * @throws FileNotPresentException
	 * @return \B2\Entities\File
	 */
	public function Upload($localFile, Bucket $bucket, $path, $retries){
		if(!file_exists($localFile)) throw new FileNotPresentException("Local file ($localFile) not found.");
		$reader = new FileReader($localFile);
		$reader->setChunkSize(self::CHUNK_SIZE);
		if($reader->getSize() > self::CHUNK_SIZE){
			$chunkUploader = new ChunkFileUploader($this->_client, $reader, $bucket, $path, $retries);
			return $chunkUploader->upload(); 
		}
		return $this->_uploadSmallFile($reader, $bucket, $path, $retries);
	}
	
	
}