Giuseppe Aremare neomusic

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	<?php
	/**
	* Returns a pre-signed URL to access a restricted AWS S3 object.
	*
	* @param string $access_key the AWS access key
	* @param string $secret_key the AWS secret key associated with the access key
	* @param string $bucket the S3 bucket
	* @param string $canonical_uri the object in the S3 bucket expressed as a canonical URI.
	* This should begin with the / character, and should not be URL-encoded
	* @param int $expires the time that the pre-signed URL will expire, in seconds

	// transform cropper dataURI output to a Blob which Dropzone accepts
	function dataURItoBlob(dataURI) {
	var byteString = atob(dataURI.split(',')[1]);
	var ab = new ArrayBuffer(byteString.length);
	var ia = new Uint8Array(ab);
	for (var i = 0; i < byteString.length; i++) {
	ia[i] = byteString.charCodeAt(i);
	}
	return new Blob([ab], { type: 'image/jpeg' });
	}