a10y/s3-cubes-testing.php

## s3-cubes-testing.php
<html>
<head><title>Cube Testing</title></head>
<body>
<?php
/**
 *
   Author: Andrew Duffy

   test.php: Take the sum of two floating-point images
   stored in binary files on S3 whose URLs are to be
   looked up in a MySQL database, read, summed, and
   then have that sum written to another binary file,
   uploaded to S3, and then return the public link
   to the resultant file.


   IMPORTANT NOTE: This file MUST be in the same directory as the `sdk.class.php' file,
   as well as the `lib/' `utilities/' and `services/' directories which the sdk
   class file depend on. More info on the PHP SDK for AWS can be found at:
   http://aws.amazon.com/sdkforphp/
 */

require_once 'sdk.class.php';	##Include the SDK

$servername = "NAME OF SERVER HERE";
$user       = "NAME OF MYSQL USER ";
$pwd        = "PASSWORD FOR MYSQL USER";
$db         = "NAME OF DATABASE TO USE";

$s3 = new AmazonS3();
$bucket = "NAME OF S3 BUCKET TO STORE RESULTS IN";

echo "<h3>Opening a connection to the database...</h3></br>";

$mysql = new mysqli($servername, $user, $pwd, $db);
$res = $mysql->query("SELECT url FROM cubes");

echo "Number of URLs: " . $res->num_rows . "</br>";

$rows = $res->fetch_all(MYSQLI_ASSOC);

$urls = array();	#The Array of URLs

foreach ($rows as $row){
	array_push( $urls, $row["url"] );	#Populate our list of URLs
}


list($a, $b) = $urls;		#Assign the urls


echo "<h2>Now we're ready to download!</h2></br>";
echo "<p>Downloading image A</br>";


$text_a = file_get_contents($a);	//Fill the file with the image's binary data
echo "<p>Downloading image B</br>";
$text_b = file_get_contents($b);	//"      ^          Ditto             ^     "

//Open the files for binary writing, and write the data to them
$a_file = fopen('./imgA.tmp', 'wb');
$b_file = fopen('./imgB.tmp', 'wb');
fwrite($a_file, $text_a);
fwrite($b_file, $text_b);


echo "<h1> Generating sum-of-images file...". shell_exec('echo "./add ./imgA.tmp ./imgB.tmp summed.tmp" | bash') . "</h1>";

echo "<h3>Time to Upload to S3...</h3></br>";
//Get ready to upload the output file back up to S3
$filename = "summed.dat";
$s3->create_object($bucket, $filename, array( "fileUpload" => "summed.tmp", "grants" => array("id" => AmazonS3::USERS_ALL, "permission" => AmazonS3::GRANT_READ)));

//Get the S3 url of the object we just uploaded
$final_url = $s3->get_object_url($bucket, $filename, '5 minutes');
echo "<h2>Task Accomplished! URL to summed image is now <a href=\"" . $final_url . "\">".$final_url."</a></br>";

//Close down the database connection
echo "<h3>Closing the database connection...</h3></br>";
$mysql->close();

?>
</body>
</html>
	<html>
	<head><title>Cube Testing</title></head>
	<body>
	<?php
	/**
	*
	Author: Andrew Duffy

	test.php: Take the sum of two floating-point images
	stored in binary files on S3 whose URLs are to be
	looked up in a MySQL database, read, summed, and
	then have that sum written to another binary file,
	uploaded to S3, and then return the public link
	to the resultant file.



	IMPORTANT NOTE: This file MUST be in the same directory as the `sdk.class.php' file,
	as well as the `lib/' `utilities/' and `services/' directories which the sdk
	class file depend on. More info on the PHP SDK for AWS can be found at:
	http://aws.amazon.com/sdkforphp/
	*/

	require_once 'sdk.class.php'; ##Include the SDK

	$servername = "NAME OF SERVER HERE";
	$user = "NAME OF MYSQL USER ";
	$pwd = "PASSWORD FOR MYSQL USER";
	$db = "NAME OF DATABASE TO USE";

	$s3 = new AmazonS3();
	$bucket = "NAME OF S3 BUCKET TO STORE RESULTS IN";

	echo "<h3>Opening a connection to the database...</h3></br>";

	$mysql = new mysqli($servername, $user, $pwd, $db);
	$res = $mysql->query("SELECT url FROM cubes");

	echo "Number of URLs: " . $res->num_rows . "</br>";

	$rows = $res->fetch_all(MYSQLI_ASSOC);

	$urls = array(); #The Array of URLs

	foreach ($rows as $row){
	array_push( $urls, $row["url"] ); #Populate our list of URLs
	}


	list($a, $b) = $urls; #Assign the urls


	echo "<h2>Now we're ready to download!</h2></br>";
	echo "<p>Downloading image A</br>";


	$text_a = file_get_contents($a); //Fill the file with the image's binary data
	echo "<p>Downloading image B</br>";
	$text_b = file_get_contents($b); //" ^ Ditto ^ "

	//Open the files for binary writing, and write the data to them
	$a_file = fopen('./imgA.tmp', 'wb');
	$b_file = fopen('./imgB.tmp', 'wb');
	fwrite($a_file, $text_a);
	fwrite($b_file, $text_b);


	echo "<h1> Generating sum-of-images file...". shell_exec('echo "./add ./imgA.tmp ./imgB.tmp summed.tmp" \| bash') . "</h1>";

	echo "<h3>Time to Upload to S3...</h3></br>";
	//Get ready to upload the output file back up to S3
	$filename = "summed.dat";
	$s3->create_object($bucket, $filename, array( "fileUpload" => "summed.tmp", "grants" => array("id" => AmazonS3::USERS_ALL, "permission" => AmazonS3::GRANT_READ)));

	//Get the S3 url of the object we just uploaded
	$final_url = $s3->get_object_url($bucket, $filename, '5 minutes');
	echo "<h2>Task Accomplished! URL to summed image is now <a href=\"" . $final_url . "\">".$final_url."</a></br>";

	//Close down the database connection
	echo "<h3>Closing the database connection...</h3></br>";
	$mysql->close();

	?>
	</body>
	</html>