A PHP script for packaging up an iOS 6 Passbook file

makepass.php

<?

DEFINE('BASE_PATH', '.');					
//relative to where you are running this script from. All paths below are relative to this

DEFINE('P12_FILE', 'My Certificate.p12');
//your Pass Certificate, exported from Keychain Access as a P12 file

DEFINE('P12_PASSWORD', '');
//if you exported your P12 with a password, enter it here

DEFINE('OUTPUT_FILE', 'test.pkpass');
//where you want the resulting PKPass file saved to




//-- NO NEED TO MODIFY ANY DEFINES BELOW --


DEFINE('PEM_CERT_FILE', 'certificate.pem');
DEFINE('PEM_KEY_FILE', 'key.pem');
DEFINE('PEM_PASSWORD', 'Password1');		//must be at least 4 chars
DEFINE('MANIFEST_FILE', 'manifest.json');
DEFINE('PASSBOOK_FILE', 'pass.json');
DEFINE('SIGNATURE_FILE', 'signature');

$P12_FILE = escapeshellarg(P12_FILE);
$P12_PASSWORD = escapeshellarg(P12_PASSWORD);
$PEM_CERT_FILE = escapeshellarg(PEM_CERT_FILE);
$PEM_KEY_FILE = escapeshellarg(PEM_KEY_FILE);
$PEM_PASSWORD = escapeshellarg(PEM_PASSWORD);
$MANIFEST_FILE = escapeshellarg(MANIFEST_FILE);
$PASSBOOK_FILE = escapeshellarg(PASSBOOK_FILE);
$SIGNATURE_FILE = escapeshellarg(SIGNATURE_FILE);



ensureExists(BASE_PATH, 'pass folder');
chdir(BASE_PATH);
ensureExists(P12_FILE, 'P12 file');
ensureExists(PASSBOOK_FILE, 'passbook json file');
ensureExists('icon.png', 'icon file');	//only required image
//don't check manifest or signature - generated

validateJson(PASSBOOK_FILE);

$files = imagePaths();
$files[] = PASSBOOK_FILE;

createManifest($files);


generateFile(PEM_CERT_FILE, 'certificate file', "openssl pkcs12 -in $P12_FILE -clcerts -nokeys -out $PEM_CERT_FILE -passin pass:$P12_PASSWORD");

generateFile(PEM_KEY_FILE, 'key file', "openssl pkcs12 -in $P12_FILE -nocerts -out $PEM_KEY_FILE -passin pass:$P12_PASSWORD -passout pass:$PEM_PASSWORD");

generateFile(SIGNATURE_FILE, 'signature file', "openssl smime -binary -sign -signer $PEM_CERT_FILE -inkey $PEM_KEY_FILE -in $MANIFEST_FILE -out $SIGNATURE_FILE -outform DER -passin pass:$PEM_PASSWORD");

$files[] = MANIFEST_FILE;
$files[] = SIGNATURE_FILE;

zipFiles($files, OUTPUT_FILE);

function ensureExists($path, $desc) {
	if (!file_exists($path)) die("Could not create $desc at: $path\n");
}

function ensureNotExists($path, $desc) {
	if (file_exists($path)) unlink($path);
	if (file_exists($path)) die("Could not delete existing $desc at: $path\n");
}

function generateFile($file, $desc, $cmd) {
	echo "Generating $desc... ";
	ensureNotExists($file, $desc);
	shell_exec($cmd.' 1> /dev/null 2> /dev/null');
	ensureExists($file, $desc);
	echo "OK\n";
}

function imagePaths() {
	$paths = array();
	foreach (array('background', 'icon', 'logo', 'thumbnail') as $path) {
		if (file_exists("$path.png")) $paths[] = "$path.png";
		if (file_exists("$path@2x.png")) $paths[] = "$path@2x.png";
	}
	return $paths;
}

function createManifest($files) {
	$manifest = array();
	foreach ($files as $file) {
		$manifest[$file] = sha1_file($file);
	}

	echo "Generating manifest... ";
	ensureNotExists(MANIFEST_FILE, 'manifest');
	file_put_contents(MANIFEST_FILE, json_encode($manifest));
	ensureExists(MANIFEST_FILE, 'manifest');
	echo "OK\n";
}

function zipFiles($files, $zipfile) {
	echo "Zipping pkpass file... ";

	$zip = new ZipArchive();
	
	if (!$zip->open($zipfile, ZIPARCHIVE::OVERWRITE)) die("Could not create zip file at: $zipfile\n");

	foreach ($files as $file) {
		$zip->addFile($file);
	}
	$zip->close();
	
	echo "created $zipfile OK\n";
}

function validateJson($file) {
	$json = file_get_contents($file);
	if (is_null(json_decode($json))) die("Could not validate JSON file: $file\n");
}