105 lines
3.9 KiB
PHP
105 lines
3.9 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2017, Joas Schilling <coding@schilljs.com>
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*
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* @author Joas Schilling <coding@schilljs.com>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\App\CodeChecker;
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class DatabaseSchemaChecker {
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/**
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* @param string $appId
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* @return array
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*/
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public function analyse($appId) {
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$appPath = \OC_App::getAppPath($appId);
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if ($appPath === false) {
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throw new \RuntimeException("No app with given id <$appId> known.");
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}
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if (!file_exists($appPath . '/appinfo/database.xml')) {
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return ['errors' => [], 'warnings' => []];
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}
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libxml_use_internal_errors(true);
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$loadEntities = libxml_disable_entity_loader(false);
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$xml = simplexml_load_file($appPath . '/appinfo/database.xml');
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libxml_disable_entity_loader($loadEntities);
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$errors = $warnings = [];
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foreach ($xml->table as $table) {
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// Table names
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if (strpos($table->name, '*dbprefix*') !== 0) {
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$errors[] = 'Database schema error: name of table ' . $table->name . ' does not start with *dbprefix*';
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}
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$tableName = substr($table->name, strlen('*dbprefix*'));
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if (strpos($tableName, '*dbprefix*') !== false) {
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$warnings[] = 'Database schema warning: *dbprefix* should only appear once in name of table ' . $table->name;
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}
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if (strlen($tableName) > 27) {
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$errors[] = 'Database schema error: Name of table ' . $table->name . ' is too long (' . strlen($tableName) . '), max. 27 characters (21 characters for tables with autoincrement) + *dbprefix* allowed';
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}
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$hasAutoIncrement = false;
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// Column names
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foreach ($table->declaration->field as $column) {
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if (strpos($column->name, '*dbprefix*') !== false) {
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$warnings[] = 'Database schema warning: *dbprefix* should not appear in name of column ' . $column->name . ' on table ' . $table->name;
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}
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if (strlen($column->name) > 30) {
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$errors[] = 'Database schema error: Name of column ' . $column->name . ' on table ' . $table->name . ' is too long (' . strlen($tableName) . '), max. 30 characters allowed';
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}
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if ($column->autoincrement) {
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if ($hasAutoIncrement) {
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$errors[] = 'Database schema error: Table ' . $table->name . ' has multiple autoincrement columns';
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}
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if (strlen($tableName) > 21) {
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$errors[] = 'Database schema error: Name of table ' . $table->name . ' is too long (' . strlen($tableName) . '), max. 27 characters (21 characters for tables with autoincrement) + *dbprefix* allowed';
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}
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$hasAutoIncrement = true;
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}
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}
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// Index names
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foreach ($table->declaration->index as $index) {
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$hasPrefix = strpos($index->name, '*dbprefix*');
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if ($hasPrefix !== false && $hasPrefix !== 0) {
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$warnings[] = 'Database schema warning: *dbprefix* should only appear at the beginning in name of index ' . $index->name . ' on table ' . $table->name;
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}
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$indexName = $hasPrefix === 0 ? substr($index->name, strlen('*dbprefix*')) : $index->name;
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if (strlen($indexName) > 27) {
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$errors[] = 'Database schema error: Name of index ' . $index->name . ' on table ' . $table->name . ' is too long (' . strlen($tableName) . '), max. 27 characters + *dbprefix* allowed';
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}
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}
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}
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return ['errors' => $errors, 'warnings' => $warnings];
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}
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}
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