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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * The phpMyFAQ\Database\Sqlsrv class provides methods and functions for SQL Server Driver |
| 5 | * for PHP from Microsoft for Microsoft SQL Server 2012 or later. |
| 6 | * |
| 7 | * This Source Code Form is subject to the terms of the Mozilla Public License, |
| 8 | * v. 2.0. If a copy of the MPL was not distributed with this file, You can |
| 9 | * obtain one at https://mozilla.org/MPL/2.0/. |
| 10 | * |
| 11 | * @package phpMyFAQ |
| 12 | * @author Thorsten Rinne <thorsten@phpmyfaq.de> |
| 13 | * @copyright 2009-2026 phpMyFAQ Team |
| 14 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 15 | * @link https://www.phpmyfaq.de |
| 16 | * @since 2009-02-18 |
| 17 | */ |
| 18 | |
| 19 | declare(strict_types=1); |
| 20 | |
| 21 | namespace phpMyFAQ\Database; |
| 22 | |
| 23 | use Exception; |
| 24 | use phpMyFAQ\Database; |
| 25 | use SensitiveParameter; |
| 26 | |
| 27 | /** |
| 28 | * Class Sqlsrv |
| 29 | * |
| 30 | * @package phpMyFAQ\Database |
| 31 | * @deprecated Use PDO instead. Will be removed in the v5.0 release. |
| 32 | */ |
| 33 | class Sqlsrv implements DatabaseDriver |
| 34 | { |
| 35 | /** @var string[] Tables */ |
| 36 | public array $tableNames = []; |
| 37 | |
| 38 | /** @var resource|bool */ |
| 39 | private $conn = false; |
| 40 | |
| 41 | /** The query log string. */ |
| 42 | private string $sqlLog = ''; |
| 43 | |
| 44 | /** @var resource|false|null The last query result for tracking affected rows. */ |
| 45 | private mixed $lastResult = null; |
| 46 | |
| 47 | /** |
| 48 | * Connection options array. |
| 49 | * |
| 50 | * @var array<string, mixed> |
| 51 | */ |
| 52 | private array $connectionOptions = []; |
| 53 | |
| 54 | /** |
| 55 | * Connects to the database. |
| 56 | * This function connects to a MySQL database |
| 57 | * |
| 58 | * @param string $host A string specifying the name of the server to which a connection is being established |
| 59 | * @param string $user Specifies the User ID to be used when connecting with SQL Server Authentication |
| 60 | * @param string $password Specifies the password associated with the User ID to be used when connecting with |
| 61 | * SQL Server Authentication |
| 62 | * @param string $database Specifies the name of the database in use for the connection being established |
| 63 | * @return bool|null true, if connected, otherwise false |
| 64 | */ |
| 65 | public function connect( |
| 66 | string $host, |
| 67 | #[SensitiveParameter] |
| 68 | string $user, |
| 69 | #[SensitiveParameter] |
| 70 | string $password, |
| 71 | string $database = '', |
| 72 | ?int $port = null, |
| 73 | ): ?bool { |
| 74 | $this->setConnectionOptions($user, $password, $database); |
| 75 | |
| 76 | $this->conn = sqlsrv_connect($host . ', ' . (string) $port, $this->connectionOptions); |
| 77 | if (!$this->conn) { |
| 78 | Database::errorPage($this->formatErrors(sqlsrv_errors() ?? [])); |
| 79 | die(); |
| 80 | } |
| 81 | |
| 82 | return true; |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * Escapes a string for use in a query. |
| 87 | * |
| 88 | * @param string $string String |
| 89 | */ |
| 90 | public function escape(string $string): string |
| 91 | { |
| 92 | return str_replace(search: "'", replace: "''", subject: $string); |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Fetch a result row as an assoc array. |
| 97 | * |
| 98 | * @param mixed $result Resultset |
| 99 | */ |
| 100 | public function fetchArray(mixed $result): ?array |
| 101 | { |
| 102 | if (!is_resource($result)) { |
| 103 | return []; |
| 104 | } |
| 105 | |
| 106 | $fetchedData = sqlsrv_fetch_array($result, SQLSRV_FETCH_ASSOC); |
| 107 | |
| 108 | return is_array($fetchedData) ? $fetchedData : []; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Fetch a result row. |
| 113 | */ |
| 114 | public function fetchRow(mixed $result): mixed |
| 115 | { |
| 116 | $row = $this->fetchArray($result); |
| 117 | |
| 118 | return $row[0] ?? null; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Fetches a complete result as an object. |
| 123 | * |
| 124 | * @param mixed $result Resultset |
| 125 | * @throws Exception |
| 126 | * @return list<\stdClass>|null |
| 127 | */ |
| 128 | public function fetchAll(mixed $result): ?array |
| 129 | { |
| 130 | $ret = []; |
| 131 | if (false === $result) { |
| 132 | throw new Exception('Error while fetching result: ' . $this->error()); |
| 133 | } |
| 134 | |
| 135 | while (true) { |
| 136 | $row = $this->fetchObject($result); |
| 137 | if (!$row instanceof \stdClass) { |
| 138 | break; |
| 139 | } |
| 140 | |
| 141 | $ret[] = $row; |
| 142 | } |
| 143 | |
| 144 | return $ret; |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Returns the error string. |
| 149 | */ |
| 150 | public function error(): string |
| 151 | { |
| 152 | $errors = sqlsrv_errors(); |
| 153 | |
| 154 | if (null !== $errors) { |
| 155 | $firstError = $errors[0] ?? []; |
| 156 | return (string) ($firstError['SQLSTATE'] ?? '') . ': ' . (string) ($firstError['message'] ?? ''); |
| 157 | } |
| 158 | |
| 159 | return ''; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Fetch a result row as an object. |
| 164 | * |
| 165 | * @param mixed $result Results |
| 166 | * |
| 167 | * @return \stdClass|false|null |
| 168 | */ |
| 169 | public function fetchObject(mixed $result): mixed |
| 170 | { |
| 171 | if (!is_resource($result)) { |
| 172 | return false; |
| 173 | } |
| 174 | |
| 175 | /* @mago-expect lint:inline-variable-return - the variable carries the @var type for mago analyze */ |
| 176 | /** @var \stdClass|false|null $row */ |
| 177 | $row = sqlsrv_fetch_object($result); |
| 178 | |
| 179 | return $row; |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Number of rows in a result. |
| 184 | * |
| 185 | * @param mixed $result Resultset |
| 186 | */ |
| 187 | public function numRows(mixed $result): int |
| 188 | { |
| 189 | if (!is_resource($result)) { |
| 190 | return 0; |
| 191 | } |
| 192 | |
| 193 | $numRows = sqlsrv_num_rows($result); |
| 194 | |
| 195 | return is_int($numRows) ? $numRows : 0; |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Logs the queries. |
| 200 | */ |
| 201 | public function log(): string |
| 202 | { |
| 203 | return $this->sqlLog; |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * This function returns the table status. |
| 208 | * |
| 209 | * @param string $prefix Table prefix |
| 210 | */ |
| 211 | public function getTableStatus(string $prefix = ''): array |
| 212 | { |
| 213 | $tables = []; |
| 214 | $query = " |
| 215 | SELECT |
| 216 | obj.name AS table_name, |
| 217 | idx.rows AS table_rows |
| 218 | FROM |
| 219 | sysobjects obj, sysindexes idx |
| 220 | WHERE |
| 221 | idx.id = OBJECT_ID(obj.name) |
| 222 | AND idx.indid < 2 |
| 223 | AND obj.xtype = 'U' |
| 224 | ORDER BY obj.name"; |
| 225 | $result = $this->query($query); |
| 226 | |
| 227 | while (true) { |
| 228 | $row = $this->fetchObject($result); |
| 229 | if (!$row instanceof \stdClass) { |
| 230 | break; |
| 231 | } |
| 232 | |
| 233 | $tables[$row->table_name] = $row->table_rows; |
| 234 | } |
| 235 | |
| 236 | return $tables; |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * This function sends a query to the database. |
| 241 | * |
| 242 | * @return resource|bool |
| 243 | */ |
| 244 | public function query(string $query, int $offset = 0, int $rowcount = 0): mixed |
| 245 | { |
| 246 | $this->sqlLog .= $query; |
| 247 | |
| 248 | if (!is_resource($this->conn)) { |
| 249 | return false; |
| 250 | } |
| 251 | |
| 252 | $options = ['Scrollable' => SQLSRV_CURSOR_KEYSET]; |
| 253 | |
| 254 | if (0 < $rowcount) { |
| 255 | $query .= sprintf(' OFFSET %d ROWS FETCH NEXT %d ROWS ONLY', $offset, $rowcount); |
| 256 | } |
| 257 | |
| 258 | $result = sqlsrv_query($this->conn, $query, [], $options); |
| 259 | |
| 260 | if (!$result) { |
| 261 | $this->sqlLog .= $this->error(); |
| 262 | } |
| 263 | |
| 264 | $this->lastResult = $result; |
| 265 | |
| 266 | return $result; |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * Sends a parameterized query; `?` placeholders are bound natively by sqlsrv. |
| 271 | * |
| 272 | * @param array<int, string|int|float|null> $params |
| 273 | */ |
| 274 | public function queryPrepared(string $query, array $params): mixed |
| 275 | { |
| 276 | $this->sqlLog .= $query; |
| 277 | |
| 278 | if (!is_resource($this->conn)) { |
| 279 | return false; |
| 280 | } |
| 281 | |
| 282 | $result = sqlsrv_query($this->conn, $query, $params, ['Scrollable' => SQLSRV_CURSOR_KEYSET]); |
| 283 | |
| 284 | if (!$result) { |
| 285 | $this->sqlLog .= $this->error(); |
| 286 | } |
| 287 | |
| 288 | $this->lastResult = $result; |
| 289 | |
| 290 | return $result; |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * Returns the number of rows affected by the last INSERT, UPDATE, or DELETE query. |
| 295 | */ |
| 296 | public function affectedRows(): int |
| 297 | { |
| 298 | if ($this->lastResult === false || $this->lastResult === null) { |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | $rows = sqlsrv_rows_affected($this->lastResult); |
| 303 | return $rows === false ? 0 : $rows; |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * Returns the next ID of a table. |
| 308 | * |
| 309 | * @param string $table the name of the table |
| 310 | * @param string $column the name of the ID column |
| 311 | */ |
| 312 | public function nextId(string $table, string $column): int |
| 313 | { |
| 314 | $select = sprintf(' |
| 315 | SELECT |
| 316 | max(%s) as current_id |
| 317 | FROM |
| 318 | %s', $column, $table); |
| 319 | |
| 320 | $result = $this->query($select); |
| 321 | if (!is_resource($result)) { |
| 322 | return 1; |
| 323 | } |
| 324 | |
| 325 | sqlsrv_fetch($result); |
| 326 | |
| 327 | $fieldIndex = 0; |
| 328 | $currentId = sqlsrv_get_field($result, $fieldIndex); |
| 329 | |
| 330 | return (is_numeric($currentId) ? (int) $currentId : 0) + 1; |
| 331 | } |
| 332 | |
| 333 | /** |
| 334 | * Returns the library version string. |
| 335 | */ |
| 336 | public function clientVersion(): string |
| 337 | { |
| 338 | if (!is_resource($this->conn)) { |
| 339 | return ''; |
| 340 | } |
| 341 | |
| 342 | $clientInfo = sqlsrv_client_info($this->conn); |
| 343 | if (!is_array($clientInfo)) { |
| 344 | return ''; |
| 345 | } |
| 346 | |
| 347 | return (string) ($clientInfo['DriverODBCVer'] ?? '') . ' ' . (string) ($clientInfo['DriverVer'] ?? ''); |
| 348 | } |
| 349 | |
| 350 | /** |
| 351 | * Returns the library version string. |
| 352 | */ |
| 353 | public function serverVersion(): string |
| 354 | { |
| 355 | if (!is_resource($this->conn)) { |
| 356 | return ''; |
| 357 | } |
| 358 | |
| 359 | $serverInfo = sqlsrv_server_info($this->conn); |
| 360 | |
| 361 | return (string) ($serverInfo['SQLServerVersion'] ?? ''); |
| 362 | } |
| 363 | |
| 364 | /** |
| 365 | * Returns an array with all table names. |
| 366 | * |
| 367 | * @todo Have to be refactored because of https://github.com/thorsten/phpMyFAQ/issues/965 |
| 368 | * |
| 369 | * @param string $prefix Table prefix |
| 370 | */ |
| 371 | public function getTableNames(string $prefix = ''): array |
| 372 | { |
| 373 | return $this->tableNames = [ |
| 374 | $prefix . 'faqadminlog', |
| 375 | $prefix . 'faqattachment', |
| 376 | $prefix . 'faqattachment_file', |
| 377 | $prefix . 'faqbackup', |
| 378 | $prefix . 'faqbookmarks', |
| 379 | $prefix . 'faqcaptcha', |
| 380 | $prefix . 'faqcategories', |
| 381 | $prefix . 'faqcategoryrelations', |
| 382 | $prefix . 'faqcategory_group', |
| 383 | $prefix . 'faqcategory_news', |
| 384 | $prefix . 'faqcategory_order', |
| 385 | $prefix . 'faqcategory_user', |
| 386 | $prefix . 'faqchanges', |
| 387 | $prefix . 'faqchat_messages', |
| 388 | $prefix . 'faqcomments', |
| 389 | $prefix . 'faqconfig', |
| 390 | $prefix . 'faqcustompages', |
| 391 | $prefix . 'faqdata', |
| 392 | $prefix . 'faqdata_group', |
| 393 | $prefix . 'faqdata_revisions', |
| 394 | $prefix . 'faqdata_tags', |
| 395 | $prefix . 'faqdata_user', |
| 396 | $prefix . 'faqforms', |
| 397 | $prefix . 'faqglossary', |
| 398 | $prefix . 'faqgroup', |
| 399 | $prefix . 'faqgroup_right', |
| 400 | $prefix . 'faqinstances', |
| 401 | $prefix . 'faqinstances_config', |
| 402 | $prefix . 'faqnews', |
| 403 | $prefix . 'faqquestions', |
| 404 | $prefix . 'faqright', |
| 405 | $prefix . 'faqsearches', |
| 406 | $prefix . 'faqseo', |
| 407 | $prefix . 'faqsessions', |
| 408 | $prefix . 'faqstopwords', |
| 409 | $prefix . 'faqtags', |
| 410 | $prefix . 'faquser', |
| 411 | $prefix . 'faquserdata', |
| 412 | $prefix . 'faquserlogin', |
| 413 | $prefix . 'faquser_group', |
| 414 | $prefix . 'faquser_right', |
| 415 | $prefix . 'faqvisits', |
| 416 | $prefix . 'faqvoting', |
| 417 | ]; |
| 418 | } |
| 419 | |
| 420 | /** |
| 421 | * Closes the connection to the database. |
| 422 | */ |
| 423 | public function close(): void |
| 424 | { |
| 425 | if (is_resource($this->conn)) { |
| 426 | sqlsrv_close($this->conn); |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * Returns the ID of the last inserted row. |
| 432 | */ |
| 433 | public function lastInsertId(): int|string |
| 434 | { |
| 435 | if (!is_resource($this->conn)) { |
| 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | $query = 'SELECT SCOPE_IDENTITY() AS id'; |
| 440 | $result = sqlsrv_query($this->conn, $query); |
| 441 | if ($result === false) { |
| 442 | return 0; |
| 443 | } |
| 444 | |
| 445 | sqlsrv_fetch($result); |
| 446 | |
| 447 | $fieldIndex = 0; |
| 448 | return (int) sqlsrv_get_field($result, $fieldIndex); |
| 449 | } |
| 450 | |
| 451 | public function now(): string |
| 452 | { |
| 453 | return 'GETDATE()'; |
| 454 | } |
| 455 | |
| 456 | /** |
| 457 | * Sets the connection options. |
| 458 | * |
| 459 | * @param string $user Specifies the User ID to be used when connecting with SQL Server Authentication |
| 460 | * @param string $password Specifies the password associated with the User ID to be used when connecting with |
| 461 | * SQL Server Authentication |
| 462 | * @param string $database Specifies the name of the database in use for the connection being established |
| 463 | */ |
| 464 | private function setConnectionOptions(string $user, #[SensitiveParameter] string $password, string $database): void |
| 465 | { |
| 466 | $this->connectionOptions = [ |
| 467 | 'UID' => $user, |
| 468 | 'PWD' => $password, |
| 469 | 'Database' => $database, |
| 470 | 'CharacterSet' => 'UTF-8', |
| 471 | 'TrustServerCertificate' => true, // even trust self-signed certificates |
| 472 | ]; |
| 473 | } |
| 474 | |
| 475 | /** |
| 476 | * Formats the error output |
| 477 | */ |
| 478 | private function formatErrors(array $errors): string |
| 479 | { |
| 480 | $error = '<h3>SQL Error:</h3>MS SQL Error information: <br/>'; |
| 481 | foreach ($errors as $entry) { |
| 482 | $entry = is_array($entry) ? $entry : []; |
| 483 | $error .= sprintf( |
| 484 | 'SQLSTATE: %s<br/>Code: %s<br/>Message: %s<br/>', |
| 485 | (string) ($entry['SQLSTATE'] ?? ''), |
| 486 | (string) ($entry['code'] ?? ''), |
| 487 | (string) ($entry['message'] ?? ''), |
| 488 | ); |
| 489 | } |
| 490 | |
| 491 | return $error; |
| 492 | } |
| 493 | } |