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<?php
/**
* Tests for the HMAC-SHA1 utility functions used by the OpenID
* library.
*
* PHP versions 4 and 5
*
* LICENSE: See the COPYING file included in this distribution.
*
* @package OpenID
* @author JanRain, Inc. <openid@janrain.com>
* @copyright 2005-2008 Janrain, Inc.
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache
*/
require_once 'Auth/OpenID/HMAC.php';
require_once 'Tests/Auth/OpenID/TestUtil.php';
class Tests_Auth_OpenID_HMAC_TestCase extends PHPUnit_Framework_TestCase {
function Tests_Auth_OpenID_HMAC_TestCase(
$name, $key, $data, $expected, $hmac_func)
{
$this->setName($name);
$this->key = $key;
$this->data = $data;
$this->expected = $expected;
$this->hmac_func = $hmac_func;
}
function runTest()
{
$actual = call_user_func($this->hmac_func, $this->key, $this->data);
$this->assertEquals(bin2hex($this->expected), bin2hex($actual));
}
}
class Tests_Auth_OpenID_HMAC extends PHPUnit_Framework_TestSuite {
function _strConvert($s)
{
$repeat_pat = '/^0x([a-f0-9]{2}) repeated (\d+) times$/';
if (preg_match($repeat_pat, $s, $match)) {
$c = chr(hexdec($match[1]));
$n = $match[2];
$data = '';
for ($i = 0; $i < $n; $i++) {
$data .= $c;
}
} elseif (substr($s, 0, 2) == "0x") {
$data = pack('H*', substr($s, 2, strlen($s) - 1));
} elseif (preg_match('/^"(.*)"$/', $s, $match)) {
$data = $match[1];
} else {
trigger_error("Bad data format: $s", E_USER_ERROR);
}
return $data;
}
function _readTestCases($test_file_name, $digest_len)
{
$lines = Tests_Auth_OpenID_readlines($test_file_name);
$cases = array();
$case = array();
foreach ($lines as $line) {
if ($line{0} == "#") {
continue;
}
// Blank line separates test cases
if ($line == "\n") {
$cases[] = $case;
$case = array();
} else {
$match = array();
$pat = '/^([a-z0-9_-]+) =\s+(.*?)\n$/';
if (!preg_match($pat, $line, $match)) {
trigger_error("Bad test input: $line", E_USER_ERROR);
}
$c = count($match);
if ($c != 3) {
trigger_error(
"Wrong number of elements in parsed case: $c",
E_USER_ERROR);
return false;
}
$key = $match[1];
$value = $match[2];
$case[$key] = $value;
}
}
if (count($case)) {
$cases[] = $case;
}
$final = array();
// Normalize strings and check data integrity
foreach ($cases as $case) {
$clean = array();
$clean["key"] =
Tests_Auth_OpenID_HMAC::_strConvert($case["key"]);
if (defined(@$case["key_len"])) {
if (Auth_OpenID::bytes($clean["key"]) != $case["key_len"]) {
trigger_error("Bad key length", E_USER_ERROR);
}
}
$clean["data"] =
Tests_Auth_OpenID_HMAC::_strConvert($case["data"]);
if (defined(@$case["data_len"])) {
if (Auth_OpenID::bytes($clean["data"]) != $case["data_len"]) {
trigger_error("Bad data length", E_USER_ERROR);
}
}
$clean["digest"] =
Tests_Auth_OpenID_HMAC::_strConvert($case["digest"]);
if (Auth_OpenID::bytes($clean["digest"]) != $digest_len) {
$l = Auth_OpenID::bytes($clean["digest"]);
trigger_error("Bad digest length: $l", E_USER_ERROR);
}
$clean['test_case'] = $case['test_case'];
$final[] = $clean;
}
return $final;
}
function Tests_Auth_OpenID_HMAC($name)
{
$this->setName($name);
$hash_test_defs = array(array(
'Auth_OpenID_HMACSHA1', 'hmac-sha1.txt', 20));
if (Auth_OpenID_HMACSHA256_SUPPORTED) {
$hash_test_defs[] =
array('Auth_OpenID_HMACSHA256', 'hmac-sha256.txt', 32);
}
foreach ($hash_test_defs as $params) {
list($hash_func, $filename, $hash_len) = $params;
$cases = $this->_readTestCases($filename, $hash_len);
foreach ($cases as $case) {
$test = new Tests_Auth_OpenID_HMAC_TestCase(
$case['test_case'],
$case['key'],
$case['data'],
$case['digest'],
$hash_func);
$digest = $case['digest'];
$this->_addTestByValue($test);
}
}
}
function _addTestByValue($test) {
$this->addTest($test);
}
}
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