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added hashing of strings to ints

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This commit is contained in:
Dennis Eichhorn 2020-07-31 00:15:19 +02:00
parent e736214417
commit 568f3fab4b
3 changed files with 71 additions and 5 deletions
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23
Module/ModuleAbstract.php
View File

@ -18,10 +18,13 @@ use phpOMS\Application\ApplicationAbstract;
use phpOMS\Message\RequestAbstract;
use phpOMS\Message\ResponseAbstract;
use phpOMS\System\MimeType;
use phpOMS\Utils\StringUtils;
/**
* Module abstraction class.
*
* @method __call(string $name, array $arguments)
*
* @package phpOMS\Module
* @license OMS License 1.0
* @link https://orange-management.org
@ -264,8 +267,10 @@ abstract class ModuleAbstract
$this->app->eventManager->trigger('POST:Module:' . static::MODULE_NAME . '-' . $trigger . '-create', '', [
$account,
null, $obj,
0, 0,
StringUtils::intHash(\is_string($mapper) ? $mapper : \get_class($mapper)), 0,
static::MODULE_NAME,
(string) $obj->getId(),
'',
$ip,
]);
}
@ -291,8 +296,10 @@ abstract class ModuleAbstract
$this->app->eventManager->trigger('POST:Module:' . static::MODULE_NAME . '-' . $trigger . '-create', '', [
$account,
null, $obj,
0, 0,
StringUtils::intHash(\is_string($mapper) ? $mapper : \get_class($mapper)), 0,
static::MODULE_NAME,
(string) $obj->getId(),
'',
$ip,
]);
}
@ -323,8 +330,10 @@ abstract class ModuleAbstract
$this->app->eventManager->trigger('POST:Module:' . static::MODULE_NAME . '-' . $trigger . '-update', '', [
$account,
$old, $new,
0, 0,
StringUtils::intHash(\is_string($mapper) ? $mapper : \get_class($mapper)), 0,
static::MODULE_NAME,
(string) $old->getId(),
'',
$ip,
]);
}
@ -349,8 +358,10 @@ abstract class ModuleAbstract
$this->app->eventManager->trigger('POST:Module:' . static::MODULE_NAME . '-' . $trigger . '-delete', '', [
$account,
$obj, null,
0, 0,
StringUtils::intHash(\is_string($mapper) ? $mapper : \get_class($mapper)), 0,
static::MODULE_NAME,
(string) $obj->getId(),
'',
$ip,
]);
}
@ -377,8 +388,10 @@ abstract class ModuleAbstract
$this->app->eventManager->trigger('POST:Module:' . static::MODULE_NAME . '-' . $trigger . '-relation', '', [
$account,
$rel1, $rel2,
0, 0,
StringUtils::intHash(\is_string($mapper) ? $mapper : \get_class($mapper)), 0,
static::MODULE_NAME,
'0',
'',
$ip,
]);
}

23
Utils/StringUtils.php
View File

@ -377,4 +377,27 @@ final class StringUtils
return ['values' => $diffValues, 'mask' => $diffMask];
}
/**
* Create a int hash from a string
*
* @param string $str String to hash
*
* @return int
*
* @since 1.0.0
*/
public static function intHash(string $str) : int
{
$res = 0;
$pow = 1;
$len = \strlen($str);
for ($i = 0; $i < $len; ++$i) {
$res = ($res + (\ord($str[$i]) - \ord('a') + 1) * $pow) % (1e9 + 9);
$pow = ($pow * 31) % (1e9 + 9);
}
return (int) $res;
}
}

30
tests/Utils/StringUtilsTest.php
View File

@ -84,6 +84,36 @@ class StringUtilsTest extends \PHPUnit\Framework\TestCase
self::assertEquals(0, StringUtils::countCharacterFromStart(' Test string', 's'));
}
/**
* @testdox A string creates a integer hash
* @covers phpOMS\Utils\StringUtils
* @group framework
*/
public function testIntHash() : void
{
self::assertGreaterThan(0, StringUtils::intHash('test'));
}
/**
* @testdox The same string creates the same hash
* @covers phpOMS\Utils\StringUtils
* @group framework
*/
public function testSameHash() : void
{
self::assertEquals(StringUtils::intHash('test'), StringUtils::intHash('test'));
}
/**
* @testdox Different strings create different hashes
* @covers phpOMS\Utils\StringUtils
* @group framework
*/
public function testDifferentHash() : void
{
self::assertEquals(StringUtils::intHash('test1'), StringUtils::intHash('test2'));
}
/**
* @testdox Various data types can be stringified
* @covers phpOMS\Utils\StringUtils