Differential D15663 Diff 37756 src/infrastructure/cluster/PhabricatorClusterDatabasesConfigOptionType.php

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src/infrastructure/cluster/PhabricatorClusterDatabasesConfigOptionType.php

This file was added.

				<?php

				final class PhabricatorClusterDatabasesConfigOptionType
				extends PhabricatorConfigJSONOptionType {

				public function validateOption(PhabricatorConfigOption $option, $value) {
				if (!is_array($value)) {
				throw new Exception(
				pht(
				'Database cluster configuration is not valid: value must be a '.
				'list of database hosts.'));
				}

				foreach ($value as $index => $spec) {
				if (!is_array($spec)) {
				throw new Exception(
				pht(
				'Database cluster configuration is not valid: each entry in the '.
				'list must be a dictionary describing a database host, but '.
				'the value with index "%s" is not a dictionary.',
				$index));
				}
				}

				$masters = array();
				$map = array();
				foreach ($value as $index => $spec) {
				try {
				PhutilTypeSpec::checkMap(
				$spec,
				array(
				'host' => 'string',
				'role' => 'string',
				'port' => 'optional int',
				'user' => 'optional string',
				'pass' => 'optional string',
				'disabled' => 'optional bool',
				));
				} catch (Exception $ex) {
				throw new Exception(
				pht(
				'Database cluster configuration has an invalid host '.
				'specification (at index "%s"): %s.',
				$index,
				$ex->getMessage()));
				}

				$role = $spec['role'];
				$host = $spec['host'];
				$port = idx($spec, 'port');

				switch ($role) {
				case 'master':
				case 'replica':
				break;
				default:
				throw new Exception(
				pht(
				'Database cluster configuration describes an invalid '.
				'host ("%s", at index "%s") with an unrecognized role ("%s"). '.
				'Valid roles are "%s" or "%s".',
				$spec['host'],
				$index,
				$spec['role'],
				'master',
				'replica'));
				}

				if ($role === 'master') {
				$masters[] = $host;
				}

				// We can't guarantee that you didn't just give the same host two
				// different names in DNS, but this check can catch silly copy/paste
				// mistakes.
				$key = "{$host}:{$port}";
				if (isset($map[$key])) {
				throw new Exception(
				pht(
				'Database cluster configuration is invalid: it describes the '.
				'same host ("%s") multiple times. Each host should appear only '.
				'once in the list.',
				$host));
				}
				$map[$key] = true;
				}

				if (count($masters) > 1) {
				throw new Exception(
				pht(
				'Database cluster configuration is invalid: it describes multiple '.
				'masters. No more than one host may be a master. Hosts currently '.
				'configured as masters: %s.',
				implode(', ', $masters)));
				}
				}

				}