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DsnParser.php
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DsnParser.php
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<?php
namespace Doctrine\DBAL\Tools;
use Doctrine\DBAL\Driver;
use Doctrine\DBAL\DriverManager;
use Doctrine\DBAL\Exception\MalformedDsnException;
use SensitiveParameter;
use function array_merge;
use function assert;
use function is_a;
use function is_string;
use function parse_str;
use function parse_url;
use function preg_replace;
use function rawurldecode;
use function str_replace;
use function strpos;
use function substr;
/** @psalm-import-type Params from DriverManager */
final class DsnParser
{
/** @var array<string, string|class-string<Driver>> */
private array $schemeMapping;
/** @param array<string, string|class-string<Driver>> $schemeMapping An array used to map DSN schemes to DBAL drivers */
public function __construct(array $schemeMapping = [])
{
$this->schemeMapping = $schemeMapping;
}
/**
* @psalm-return Params
*
* @throws MalformedDsnException
*/
public function parse(
#[SensitiveParameter]
string $dsn
): array {
// (pdo-)?sqlite3?:///... => (pdo-)?sqlite3?://localhost/... or else the URL will be invalid
$url = preg_replace('#^((?:pdo-)?sqlite3?):///#', '$1://localhost/', $dsn);
assert($url !== null);
$url = parse_url($url);
if ($url === false) {
throw MalformedDsnException::new();
}
foreach ($url as $param => $value) {
if (! is_string($value)) {
continue;
}
$url[$param] = rawurldecode($value);
}
$params = [];
if (isset($url['scheme'])) {
$params['driver'] = $this->parseDatabaseUrlScheme($url['scheme']);
}
if (isset($url['host'])) {
$params['host'] = $url['host'];
}
if (isset($url['port'])) {
$params['port'] = $url['port'];
}
if (isset($url['user'])) {
$params['user'] = $url['user'];
}
if (isset($url['pass'])) {
$params['password'] = $url['pass'];
}
if (isset($params['driver']) && is_a($params['driver'], Driver::class, true)) {
$params['driverClass'] = $params['driver'];
unset($params['driver']);
}
$params = $this->parseDatabaseUrlPath($url, $params);
$params = $this->parseDatabaseUrlQuery($url, $params);
return $params;
}
/**
* Parses the given connection URL and resolves the given connection parameters.
*
* Assumes that the connection URL scheme is already parsed and resolved into the given connection parameters
* via {@see parseDatabaseUrlScheme}.
*
* @see parseDatabaseUrlScheme
*
* @param mixed[] $url The URL parts to evaluate.
* @param mixed[] $params The connection parameters to resolve.
*
* @return mixed[] The resolved connection parameters.
*/
private function parseDatabaseUrlPath(array $url, array $params): array
{
if (! isset($url['path'])) {
return $params;
}
$url['path'] = $this->normalizeDatabaseUrlPath($url['path']);
// If we do not have a known DBAL driver, we do not know any connection URL path semantics to evaluate
// and therefore treat the path as a regular DBAL connection URL path.
if (! isset($params['driver'])) {
return $this->parseRegularDatabaseUrlPath($url, $params);
}
if (strpos($params['driver'], 'sqlite') !== false) {
return $this->parseSqliteDatabaseUrlPath($url, $params);
}
return $this->parseRegularDatabaseUrlPath($url, $params);
}
/**
* Normalizes the given connection URL path.
*
* @return string The normalized connection URL path
*/
private function normalizeDatabaseUrlPath(string $urlPath): string
{
// Trim leading slash from URL path.
return substr($urlPath, 1);
}
/**
* Parses the query part of the given connection URL and resolves the given connection parameters.
*
* @param mixed[] $url The connection URL parts to evaluate.
* @param mixed[] $params The connection parameters to resolve.
*
* @return mixed[] The resolved connection parameters.
*/
private function parseDatabaseUrlQuery(array $url, array $params): array
{
if (! isset($url['query'])) {
return $params;
}
$query = [];
parse_str($url['query'], $query); // simply ingest query as extra params, e.g. charset or sslmode
return array_merge($params, $query); // parse_str wipes existing array elements
}
/**
* Parses the given regular connection URL and resolves the given connection parameters.
*
* Assumes that the "path" URL part is already normalized via {@see normalizeDatabaseUrlPath}.
*
* @see normalizeDatabaseUrlPath
*
* @param mixed[] $url The regular connection URL parts to evaluate.
* @param mixed[] $params The connection parameters to resolve.
*
* @return mixed[] The resolved connection parameters.
*/
private function parseRegularDatabaseUrlPath(array $url, array $params): array
{
$params['dbname'] = $url['path'];
return $params;
}
/**
* Parses the given SQLite connection URL and resolves the given connection parameters.
*
* Assumes that the "path" URL part is already normalized via {@see normalizeDatabaseUrlPath}.
*
* @see normalizeDatabaseUrlPath
*
* @param mixed[] $url The SQLite connection URL parts to evaluate.
* @param mixed[] $params The connection parameters to resolve.
*
* @return mixed[] The resolved connection parameters.
*/
private function parseSqliteDatabaseUrlPath(array $url, array $params): array
{
if ($url['path'] === ':memory:') {
$params['memory'] = true;
return $params;
}
$params['path'] = $url['path']; // pdo_sqlite driver uses 'path' instead of 'dbname' key
return $params;
}
/**
* Parses the scheme part from given connection URL and resolves the given connection parameters.
*
* @return string The resolved driver.
*/
private function parseDatabaseUrlScheme(string $scheme): string
{
// URL schemes must not contain underscores, but dashes are ok
$driver = str_replace('-', '_', $scheme);
// If the driver is an alias (e.g. "postgres"), map it to the actual name ("pdo-pgsql").
// Otherwise, let checkParams decide later if the driver exists.
return $this->schemeMapping[$driver] ?? $driver;
}
}

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Sat, Oct 3, 11:37 (4 d, 22 h ago)
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DsnParser.php (6 KB)

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