wp_connectors_get_application_password_credentials( array $auth ): array{username:

522function wp_connectors_get_application_password_credentials( array $auth ): array {523	// Check environment variable first.524	$env_var_name = $auth['env_var_name'] ?? '';525	if ( '' !== $env_var_name ) {526		$env_value = getenv( $env_var_name );527		if ( false !== $env_value && '' !== $env_value ) {528			$credentials = wp_connectors_parse_application_password_credentials( $env_value );529			if ( '' !== $credentials['username'] && '' !== $credentials['password'] ) {530				$credentials['source'] = 'env';531				return $credentials;532			}533 534			_doing_it_wrong(535				__FUNCTION__,536				sprintf(537					/* translators: %s: Environment variable name. */538					__( 'The %s environment variable must contain application password credentials in "username:password" format.' ),539					esc_html( $env_var_name )540				),541				'7.1.0'542			);543		}544	}545 546	// Check PHP constant.547	$constant_name = $auth['constant_name'] ?? '';548	if ( '' !== $constant_name && defined( $constant_name ) ) {549		$const_value = constant( $constant_name );550		if ( is_string( $const_value ) && '' !== $const_value ) {551			$credentials = wp_connectors_parse_application_password_credentials( $const_value );552			if ( '' !== $credentials['username'] && '' !== $credentials['password'] ) {553				$credentials['source'] = 'constant';554				return $credentials;555			}556 557			_doing_it_wrong(558				__FUNCTION__,559				sprintf(560					/* translators: %s: PHP constant name. */561					__( 'The %s constant must contain application password credentials in "username:password" format.' ),562					esc_html( $constant_name )563				),564				'7.1.0'565			);566		}567	}568 569	// Check database.570	$stored   = get_option( $auth['setting_name'] ?? '', array() );571	$username = is_array( $stored ) && isset( $stored['username'] ) && is_string( $stored['username'] ) ? $stored['username'] : '';572	$password = is_array( $stored ) && isset( $stored['password'] ) && is_string( $stored['password'] ) ? $stored['password'] : '';573 574	return array(575		'username' => $username,576		'password' => $password,577		'source'   => '' !== $username && '' !== $password ? 'database' : 'none',578	);579}