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Editing: IpV6Strategy.php

<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\SuspiciousLogin\Service;

use InvalidArgumentException;
use OCA\SuspiciousLogin\Db\LoginAddressAggregatedMapper;
use OCA\SuspiciousLogin\Service\MLP\Config;
use function array_map;
use function base_convert;
use function bin2hex;
use function implode;
use function str_pad;
use function str_split;
use function substr;

class IpV6Strategy extends AClassificationStrategy {
	public static function getTypeName(): string {
		return 'ipv6';
	}

public function hasSufficientData(LoginAddressAggregatedMapper $loginAddressMapper, int $validationDays): bool {
		return $loginAddressMapper->hasSufficientIpV6Data($validationDays);
	}

public function findHistoricAndRecent(LoginAddressAggregatedMapper $loginAddressMapper, int $validationThreshold, int $maxAge): array {
		return $loginAddressMapper->findHistoricAndRecentIpv6($validationThreshold, $maxAge);
	}

protected function ipToVec(string $ip): array {
		$addr = inet_pton($ip);
		if ($addr === false) {
			throw new InvalidArgumentException('Invalid IPv6 address');
		}

$hex = bin2hex($addr);
		$padded = str_pad($hex, 32, '0', STR_PAD_LEFT);
		$binString = implode('', array_map(function (string $h) {
			return str_pad(base_convert($h, 16, 2), 4, '0', STR_PAD_LEFT);
		}, str_split($padded)));
		$mostSign = substr($binString, 0, 64);

return array_map(
			function (string $bit) {
				return (int)$bit;
			},
			str_split($mostSign)
		);
	}

public function generateRandomIp(): string {
		return implode(':', array_map(function (int $index) {
			return base_convert((string)random_int(0, 2 ** 16 - 1), 10, 16);
		}, range(0, 7)));
	}

public function getSize(): int {
		return 16 + 64;
	}

public function getDefaultMlpConfig(): Config {
		return Config::default()->setEpochs(20);
	}
}

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