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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * The glossary repository class. |
| 5 | * |
| 6 | * This Source Code Form is subject to the terms of the Mozilla Public License, |
| 7 | * v. 2.0. If a copy of the MPL was not distributed with this file, You can |
| 8 | * obtain one at https://mozilla.org/MPL/2.0/. |
| 9 | * |
| 10 | * @package phpMyFAQ |
| 11 | * @author Thorsten Rinne <thorsten@phpmyfaq.de> |
| 12 | * @copyright 2025 phpMyFAQ Team |
| 13 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 14 | * @link https://www.phpmyfaq.de |
| 15 | * @since 2025-11-05 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Glossary; |
| 21 | |
| 22 | use phpMyFAQ\Configuration; |
| 23 | use phpMyFAQ\Database; |
| 24 | use phpMyFAQ\Strings; |
| 25 | use Psr\Log\LoggerInterface; |
| 26 | use Psr\Log\NullLogger; |
| 27 | |
| 28 | readonly class GlossaryRepository implements GlossaryRepositoryInterface |
| 29 | { |
| 30 | /** Maximum number of characters the item column can hold. */ |
| 31 | private const int ITEM_MAX_LENGTH = 254; |
| 32 | |
| 33 | public function __construct( |
| 34 | private Configuration $configuration, |
| 35 | private LoggerInterface $logger = new NullLogger(), |
| 36 | ) { |
| 37 | } |
| 38 | |
| 39 | public function fetchAll(string $language): array |
| 40 | { |
| 41 | $databaseDriver = $this->configuration->getDb(); |
| 42 | $items = []; |
| 43 | |
| 44 | $sql = "SELECT id, lang, item, definition FROM %sfaqglossary WHERE lang = '%s' ORDER BY item ASC"; |
| 45 | $query = sprintf($sql, Database::getTablePrefix(), $databaseDriver->escape($language)); |
| 46 | |
| 47 | $result = $databaseDriver->query($query); |
| 48 | if ($result === false) { |
| 49 | $this->logger->error(message: 'Glossary fetchAll query failed', context: ['language' => $language]); |
| 50 | return []; |
| 51 | } |
| 52 | |
| 53 | $row = $databaseDriver->fetchObject($result); |
| 54 | while ($row) { |
| 55 | $items[] = [ |
| 56 | 'id' => (int) $row->id, |
| 57 | 'language' => (string) $row->lang, |
| 58 | 'item' => stripslashes((string) $row->item), |
| 59 | 'definition' => stripslashes((string) $row->definition), |
| 60 | ]; |
| 61 | $row = $databaseDriver->fetchObject($result); |
| 62 | } |
| 63 | |
| 64 | return $items; |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * @return array{id:int, language:string, item:string, definition:string}|array{} |
| 69 | */ |
| 70 | public function fetch(int $id, string $language): array |
| 71 | { |
| 72 | $databaseDriver = $this->configuration->getDb(); |
| 73 | |
| 74 | $sql = "SELECT id, lang, item, definition FROM %sfaqglossary WHERE id = %d AND lang = '%s'"; |
| 75 | $query = sprintf($sql, Database::getTablePrefix(), $id, $databaseDriver->escape($language)); |
| 76 | |
| 77 | $result = $databaseDriver->query($query); |
| 78 | if ($result === false) { |
| 79 | $this->logger->warning(message: 'Glossary fetch failed', context: ['id' => $id, 'language' => $language]); |
| 80 | return []; |
| 81 | } |
| 82 | |
| 83 | $row = $databaseDriver->fetchObject($result); |
| 84 | if (!is_object($row)) { |
| 85 | return []; |
| 86 | } |
| 87 | |
| 88 | return [ |
| 89 | 'id' => (int) $row->id, |
| 90 | 'language' => (string) $row->lang, |
| 91 | 'item' => stripslashes((string) $row->item), |
| 92 | 'definition' => stripslashes((string) $row->definition), |
| 93 | ]; |
| 94 | } |
| 95 | |
| 96 | public function create(string $language, string $item, string $definition): bool |
| 97 | { |
| 98 | $databaseDriver = $this->configuration->getDb(); |
| 99 | |
| 100 | $escapedItem = $databaseDriver->escape($this->prepareItem($item)); |
| 101 | $escapedDefinition = $databaseDriver->escape(Strings::htmlspecialchars($definition)); |
| 102 | $escapedLanguage = $databaseDriver->escape($language); |
| 103 | |
| 104 | $id = $databaseDriver->nextId(Database::getTablePrefix() . 'faqglossary', column: 'id'); |
| 105 | $sql = "INSERT INTO %sfaqglossary (id, lang, item, definition) VALUES (%d, '%s', '%s', '%s')"; |
| 106 | $query = sprintf($sql, Database::getTablePrefix(), $id, $escapedLanguage, $escapedItem, $escapedDefinition); |
| 107 | |
| 108 | $ok = (bool) $databaseDriver->query($query); |
| 109 | if (!$ok) { |
| 110 | $this->logger->error(message: 'Glossary create failed', context: [ |
| 111 | 'language' => $language, |
| 112 | 'item' => $item, |
| 113 | ]); |
| 114 | } |
| 115 | |
| 116 | return $ok; |
| 117 | } |
| 118 | |
| 119 | public function update(int $id, string $language, string $item, string $definition): bool |
| 120 | { |
| 121 | $databaseDriver = $this->configuration->getDb(); |
| 122 | |
| 123 | $escapedItem = $databaseDriver->escape($this->prepareItem($item)); |
| 124 | $escapedDefinition = $databaseDriver->escape(Strings::htmlspecialchars($definition)); |
| 125 | $escapedLanguage = $databaseDriver->escape($language); |
| 126 | |
| 127 | $sql = "UPDATE %sfaqglossary SET item = '%s', definition = '%s' WHERE id = %d AND lang = '%s'"; |
| 128 | $query = sprintf($sql, Database::getTablePrefix(), $escapedItem, $escapedDefinition, $id, $escapedLanguage); |
| 129 | |
| 130 | $ok = (bool) $databaseDriver->query($query); |
| 131 | if (!$ok) { |
| 132 | $this->logger->error(message: 'Glossary update failed', context: ['id' => $id, 'language' => $language]); |
| 133 | } |
| 134 | |
| 135 | return $ok; |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Encodes and length-limits an item before it is escaped for the query. |
| 140 | * |
| 141 | * Truncating must happen before escaping: cutting an escaped string can strip a quote while |
| 142 | * keeping the escape character in front of it, which breaks out of the SQL string literal. |
| 143 | */ |
| 144 | private function prepareItem(string $item): string |
| 145 | { |
| 146 | $encoded = Strings::htmlspecialchars(Strings::substr($item, 0, self::ITEM_MAX_LENGTH)); |
| 147 | |
| 148 | if (Strings::strlen($encoded) > self::ITEM_MAX_LENGTH) { |
| 149 | $encoded = Strings::substr($encoded, 0, self::ITEM_MAX_LENGTH); |
| 150 | // Drop an entity the cut may have left half-written |
| 151 | $encoded = (string) preg_replace('/&[#0-9a-zA-Z]*$/', replacement: '', subject: $encoded); |
| 152 | } |
| 153 | |
| 154 | return $encoded; |
| 155 | } |
| 156 | |
| 157 | public function delete(int $id, string $language): bool |
| 158 | { |
| 159 | $databaseDriver = $this->configuration->getDb(); |
| 160 | |
| 161 | $sql = "DELETE FROM %sfaqglossary WHERE id = %d AND lang = '%s'"; |
| 162 | $query = sprintf($sql, Database::getTablePrefix(), $id, $databaseDriver->escape($language)); |
| 163 | |
| 164 | $ok = (bool) $databaseDriver->query($query); |
| 165 | if (!$ok) { |
| 166 | $this->logger->warning(message: 'Glossary delete failed', context: ['id' => $id, 'language' => $language]); |
| 167 | } |
| 168 | |
| 169 | return $ok; |
| 170 | } |
| 171 | } |