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<?php |
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declare(strict_types=1); |
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namespace ShlinkMigrations; |
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use Doctrine\DBAL\DBALException; |
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use Doctrine\DBAL\Schema\Schema; |
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use Doctrine\DBAL\Schema\SchemaException; |
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use Doctrine\DBAL\Types\Type; |
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use Doctrine\Migrations\AbstractMigration; |
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use Shlinkio\Shlink\Common\Exception\WrongIpException; |
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use Shlinkio\Shlink\Common\Util\IpAddress; |
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/** |
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* Auto-generated Migration: Please modify to your needs! |
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*/ |
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final class Version20180913205455 extends AbstractMigration |
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{ |
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/** |
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* @param Schema $schema |
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* @throws SchemaException |
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*/ |
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public function up(Schema $schema): void |
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{ |
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$visits = $schema->getTable('visits'); |
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if ($visits->hasColumn('remote_addr_hash')) { |
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return; |
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} |
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$visits->addColumn('remote_addr_hash', Type::STRING, [ |
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'notnull' => false, |
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'length' => 128, |
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]); |
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} |
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/** |
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* @param Schema $schema |
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* @throws DBALException |
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*/ |
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public function postUp(Schema $schema) |
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{ |
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$qb = $this->connection->createQueryBuilder(); |
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$qb->select('id', 'remote_addr', 'visit_location_id') |
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->from('visits'); |
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$st = $this->connection->executeQuery($qb->getSQL()); |
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$qb = $this->connection->createQueryBuilder(); |
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$qb->update('visits', 'v') |
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->set('v.remote_addr_hash', ':hash') |
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->set('v.remote_addr', ':obfuscatedAddr') |
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->where('v.id=:id'); |
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while ($row = $st->fetch(\PDO::FETCH_ASSOC)) { |
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$addr = $row['remote_addr'] ?? null; |
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if ($addr === null) { |
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continue; |
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} |
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$qb->setParameters([ |
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'id' => $row['id'], |
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'hash' => \hash('sha256', $addr), |
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'obfuscatedAddr' => $this->determineAddress((string) $addr, $row), |
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])->execute(); |
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} |
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} |
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private function determineAddress(string $addr, array $row): ?string |
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{ |
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// When the visit has already been located, drop the IP address |
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if (isset($row['visit_location_id'])) { |
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return null; |
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} |
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if ($addr === IpAddress::LOCALHOST) { |
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return $addr; |
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} |
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try { |
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return (string) IpAddress::fromString($addr)->getObfuscatedCopy(); |
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} catch (WrongIpException $e) { |
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return null; |
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} |
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} |
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/** |
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* @param Schema $schema |
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* @throws SchemaException |
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*/ |
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public function down(Schema $schema): void |
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{ |
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$visits = $schema->getTable('visits'); |
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$visits->dropColumn('remote_addr_hash'); |
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} |
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} |
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shlinkio /
shlink
