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<?php |
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/** |
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* Copyright 2015 François Kooman <[email protected]>. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace fkooman\VPN\Server; |
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use fkooman\Http\Exception\BadRequestException; |
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use RuntimeException; |
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class Utils |
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{ |
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public static function validateCommonName($commonName) |
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{ |
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if (0 === preg_match('/^[a-zA-Z0-9-_.@]+$/', $commonName)) { |
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throw new BadRequestException('invalid characters in common name'); |
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} |
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// MUST NOT be '..' |
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if ('..' === $commonName) { |
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throw new BadRequestException('common name cannot be ".."'); |
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} |
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} |
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public static function validateUserId($userId) |
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{ |
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if (0 === preg_match('/^[a-zA-Z0-9-_.@]+$/', $userId)) { |
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throw new BadRequestException('invalid characters in userId'); |
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} |
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} |
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public static function validateAddress($ipAddress) |
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{ |
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if (false === filter_var($ipAddress, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) { |
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throw new BadRequestException('invalid v4 address'); |
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} |
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} |
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/** |
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* Validate that the date is in YYYY-MM-DD format. |
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* |
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* @param string $dateString the date in YYYY-MM-DD format |
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*/ |
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public static function validateDate($dateString) |
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{ |
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if (!preg_match('/[0-9]{4}-[0-9]{2}-[0-9]{2}/', $dateString)) { |
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throw new BadRequestException('invalid date format'); |
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} |
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} |
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public static function exec($cmd) |
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{ |
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exec($cmd, $output, $returnValue); |
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if (0 !== $returnValue) { |
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throw new RuntimeException( |
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sprintf('command "%s" did not complete successfully (%d)', $cmd, $returnValue) |
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); |
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} |
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} |
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public static function writeTempConfig($tmpConfig, array $configFileData) |
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{ |
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if (false === @file_put_contents($tmpConfig, implode(PHP_EOL, $configFileData))) { |
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throw new RuntimeException('unable to write temporary config file'); |
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} |
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} |
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public static function getUsedIpList($ipPoolDir) |
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{ |
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$usedIpList = []; |
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foreach (glob(sprintf('%s/*', $ipPoolDir)) as $ipFile) { |
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$usedIpList[] = basename($ipFile); |
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} |
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return $usedIpList; |
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} |
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public static function addRoute4($v4, $dev) |
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{ |
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$cmd = sprintf('/usr/bin/sudo /sbin/ip -4 ro add %s/32 dev %s', $v4, $dev); |
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self::exec($cmd); |
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} |
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public static function addRoute6($v6, $dev) |
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{ |
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$cmd = sprintf('/usr/bin/sudo /sbin/ip -6 ro add %s/128 dev %s', $v6, $dev); |
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self::exec($cmd); |
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} |
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public static function delRoute4($v4, $dev) |
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{ |
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try { |
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$cmd = sprintf('/usr/bin/sudo /sbin/ip -4 ro del %s/32 dev %s', $v4, $dev); |
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self::exec($cmd); |
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} catch (RuntimeException $e) { |
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// not the end of the world if the route cannot be deleted |
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} |
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} |
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public static function delRoute6($v6, $dev) |
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{ |
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try { |
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$cmd = sprintf('/usr/bin/sudo /sbin/ip -6 ro del %s/128 dev %s', $v6, $dev); |
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self::exec($cmd); |
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} catch (RuntimeException $e) { |
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// not the end of the world if the route cannot be deleted |
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} |
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} |
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} |
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eduVPN /
vpn-server-api
