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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * phpMyFAQ OpenSearch instance 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 2023-2026 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 2023-11-20 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Instance\Search; |
| 21 | |
| 22 | use Exception; |
| 23 | use OpenSearch\Client; |
| 24 | use phpMyFAQ\Configuration; |
| 25 | use phpMyFAQ\Configuration\OpenSearchConfiguration; |
| 26 | |
| 27 | /** |
| 28 | * Class OpenSearch |
| 29 | * |
| 30 | * @package phpMyFAQ\Instance |
| 31 | */ |
| 32 | readonly class OpenSearch |
| 33 | { |
| 34 | /** |
| 35 | * @var array<string, mixed> |
| 36 | */ |
| 37 | private array $mappings; |
| 38 | |
| 39 | private Client $client; |
| 40 | |
| 41 | private OpenSearchConfiguration $openSearchConfiguration; |
| 42 | |
| 43 | /** |
| 44 | * Constructor. |
| 45 | * |
| 46 | * @throws Exception |
| 47 | */ |
| 48 | public function __construct( |
| 49 | private Configuration $configuration, |
| 50 | ) { |
| 51 | $this->client = $this->configuration->getOpenSearch(); |
| 52 | $this->openSearchConfiguration = $this->configuration->getOpenSearchConfig(); |
| 53 | |
| 54 | $this->mappings = [ |
| 55 | 'properties' => [ |
| 56 | 'id' => ['type' => 'integer'], |
| 57 | 'lang' => ['type' => 'keyword'], |
| 58 | 'solution_id' => ['type' => 'integer'], |
| 59 | 'question' => [ |
| 60 | 'type' => 'text', |
| 61 | 'analyzer' => 'autocomplete', |
| 62 | ], |
| 63 | 'answer' => [ |
| 64 | 'type' => 'text', |
| 65 | 'analyzer' => 'autocomplete', |
| 66 | ], |
| 67 | 'keywords' => [ |
| 68 | 'type' => 'text', |
| 69 | 'analyzer' => 'autocomplete', |
| 70 | ], |
| 71 | 'category_id' => ['type' => 'integer'], |
| 72 | 'content_type' => ['type' => 'keyword'], |
| 73 | 'slug' => ['type' => 'keyword'], |
| 74 | ], |
| 75 | ]; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Creates the OpenSearch index. |
| 80 | * |
| 81 | * @throws Exception |
| 82 | */ |
| 83 | public function createIndex(): bool |
| 84 | { |
| 85 | $result = $this->client->indices()->exists(['index' => $this->openSearchConfiguration->getIndex()]); |
| 86 | |
| 87 | if (!$result) { |
| 88 | $this->client->indices()->create($this->getParams()); |
| 89 | } |
| 90 | |
| 91 | return $this->putMapping(); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Returns the basic phpMyFAQ index structure as a raw array. |
| 96 | * |
| 97 | * @return array{index: string, body: array<string, mixed>} |
| 98 | */ |
| 99 | private function getParams(): array |
| 100 | { |
| 101 | return [ |
| 102 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 103 | 'body' => [ |
| 104 | 'settings' => [ |
| 105 | 'number_of_shards' => PMF_OPENSEARCH_NUMBER_SHARDS, |
| 106 | 'number_of_replicas' => PMF_OPENSEARCH_NUMBER_REPLICAS, |
| 107 | 'analysis' => [ |
| 108 | 'filter' => [ |
| 109 | 'autocomplete_filter' => [ |
| 110 | 'type' => 'edge_ngram', |
| 111 | 'min_gram' => 1, |
| 112 | 'max_gram' => 20, |
| 113 | ], |
| 114 | 'Language_stemmer' => [ |
| 115 | 'type' => 'stemmer', |
| 116 | 'name' => PMF_OPENSEARCH_STEMMING_LANGUAGE[$this->configuration->getDefaultLanguage()], |
| 117 | ], |
| 118 | ], |
| 119 | 'analyzer' => [ |
| 120 | 'autocomplete' => [ |
| 121 | 'type' => 'custom', |
| 122 | 'tokenizer' => PMF_OPENSEARCH_TOKENIZER, |
| 123 | 'filter' => [ |
| 124 | 'lowercase', |
| 125 | 'autocomplete_filter', |
| 126 | 'Language_stemmer', |
| 127 | ], |
| 128 | ], |
| 129 | ], |
| 130 | ], |
| 131 | ], |
| 132 | ], |
| 133 | ]; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Puts phpMyFAQ OpenSearch mapping into index. |
| 138 | * |
| 139 | * @throws Exception |
| 140 | */ |
| 141 | public function putMapping(): bool |
| 142 | { |
| 143 | $response = $this->getMapping(); |
| 144 | $indexMapping = $response[$this->openSearchConfiguration->getIndex()] ?? null; |
| 145 | $currentMappings = is_array($indexMapping) ? $indexMapping['mappings'] ?? null : null; |
| 146 | |
| 147 | if (!is_array($currentMappings) || $currentMappings === []) { |
| 148 | $params = [ |
| 149 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 150 | 'body' => $this->mappings, |
| 151 | ]; |
| 152 | |
| 153 | $this->client->indices()->putMapping($params); |
| 154 | } |
| 155 | |
| 156 | return true; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Returns the current mapping. |
| 161 | * |
| 162 | * @throws Exception |
| 163 | */ |
| 164 | public function getMapping(): array |
| 165 | { |
| 166 | return $this->client->indices()->getMapping(); |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Deletes the OpenSearch index. |
| 171 | * |
| 172 | * @throws Exception |
| 173 | */ |
| 174 | public function dropIndex(): array |
| 175 | { |
| 176 | return $this->client->indices()->delete(['index' => $this->openSearchConfiguration->getIndex()]); |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Indexing of a FAQ |
| 181 | * |
| 182 | * @param array<string, int|string|null> $faq |
| 183 | */ |
| 184 | public function index(array $faq): array |
| 185 | { |
| 186 | $params = [ |
| 187 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 188 | 'id' => (string) ($faq['solution_id'] ?? ''), |
| 189 | 'body' => [ |
| 190 | 'id' => (int) ($faq['id'] ?? 0), |
| 191 | 'lang' => (string) ($faq['lang'] ?? ''), |
| 192 | 'question' => (string) ($faq['question'] ?? ''), |
| 193 | 'answer' => strip_tags((string) ($faq['answer'] ?? '')), |
| 194 | 'keywords' => (string) ($faq['keywords'] ?? ''), |
| 195 | 'category_id' => (int) ($faq['category_id'] ?? 0), |
| 196 | 'content_type' => 'faq', |
| 197 | ], |
| 198 | ]; |
| 199 | |
| 200 | return $this->client->index($params); |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * Bulk indexing of all FAQs |
| 205 | * |
| 206 | * @param array<int, array<string, mixed>> $faqs |
| 207 | * @return array<string, mixed> |
| 208 | */ |
| 209 | public function bulkIndex(array $faqs): array |
| 210 | { |
| 211 | $params = ['body' => []]; |
| 212 | $i = 1; |
| 213 | |
| 214 | foreach ($faqs as $faq) { |
| 215 | if ('no' === ($faq['active'] ?? 'no')) { |
| 216 | continue; |
| 217 | } |
| 218 | |
| 219 | $params['body'][] = [ |
| 220 | 'index' => [ |
| 221 | '_index' => $this->openSearchConfiguration->getIndex(), |
| 222 | '_id' => (string) ($faq['solution_id'] ?? ''), |
| 223 | ], |
| 224 | ]; |
| 225 | |
| 226 | $params['body'][] = [ |
| 227 | 'id' => (int) ($faq['id'] ?? 0), |
| 228 | 'lang' => (string) ($faq['lang'] ?? ''), |
| 229 | 'question' => (string) ($faq['title'] ?? ''), |
| 230 | 'answer' => strip_tags((string) ($faq['content'] ?? '')), |
| 231 | 'keywords' => (string) ($faq['keywords'] ?? ''), |
| 232 | 'category_id' => (int) ($faq['category_id'] ?? 0), |
| 233 | 'content_type' => 'faq', |
| 234 | ]; |
| 235 | |
| 236 | if (($i % 1000) === 0) { |
| 237 | $responses = $this->client->bulk($params); |
| 238 | |
| 239 | $params = ['body' => []]; |
| 240 | unset($responses); |
| 241 | } |
| 242 | |
| 243 | ++$i; |
| 244 | } |
| 245 | |
| 246 | // Send the last batch if it exists |
| 247 | $responses = $this->client->bulk($params); |
| 248 | |
| 249 | if ($responses !== null) { |
| 250 | return ['success' => $responses]; |
| 251 | } |
| 252 | |
| 253 | return ['error' => 'Unknown error.']; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Updates a FAQ document |
| 258 | * |
| 259 | * @param array<string, int|string|null> $faq |
| 260 | * @return array<array-key, mixed> |
| 261 | */ |
| 262 | public function update(array $faq): array |
| 263 | { |
| 264 | $params = [ |
| 265 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 266 | 'id' => (string) ($faq['solution_id'] ?? ''), |
| 267 | 'body' => [ |
| 268 | 'doc' => [ |
| 269 | 'id' => (int) ($faq['id'] ?? 0), |
| 270 | 'lang' => (string) ($faq['lang'] ?? ''), |
| 271 | 'question' => (string) ($faq['question'] ?? ''), |
| 272 | 'answer' => strip_tags((string) ($faq['answer'] ?? '')), |
| 273 | 'keywords' => (string) ($faq['keywords'] ?? ''), |
| 274 | 'category_id' => (int) ($faq['category_id'] ?? 0), |
| 275 | 'content_type' => 'faq', |
| 276 | ], |
| 277 | ], |
| 278 | ]; |
| 279 | |
| 280 | return $this->client->update($params); |
| 281 | } |
| 282 | |
| 283 | /** |
| 284 | * Deletes a FAQ document |
| 285 | * |
| 286 | * @return array<array-key, mixed> |
| 287 | */ |
| 288 | public function delete(int $solutionId): array |
| 289 | { |
| 290 | $params = [ |
| 291 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 292 | 'id' => (string) $solutionId, |
| 293 | ]; |
| 294 | |
| 295 | return $this->client->delete($params); |
| 296 | } |
| 297 | |
| 298 | /** |
| 299 | * Checks if OpenSearch is available |
| 300 | */ |
| 301 | public function isAvailable(): bool |
| 302 | { |
| 303 | try { |
| 304 | return $this->client->ping(); |
| 305 | } catch (Exception $exception) { |
| 306 | $this->configuration->getLogger()->error('OpenSearch ping failed.', [$exception->getMessage()]); |
| 307 | return false; |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * Indexing of a custom page |
| 313 | * |
| 314 | * @param array<string, mixed> $page |
| 315 | */ |
| 316 | public function indexCustomPage(array $page): array |
| 317 | { |
| 318 | // Only index active pages |
| 319 | if (($page['active'] ?? null) === 'n') { |
| 320 | // Delete from index if it exists (in case it was previously active) |
| 321 | return $this->deleteCustomPage((int) ($page['id'] ?? 0), (string) ($page['lang'] ?? '')); |
| 322 | } |
| 323 | |
| 324 | $params = [ |
| 325 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 326 | 'id' => 'page_' . (string) ($page['id'] ?? '') . '_' . (string) ($page['lang'] ?? ''), |
| 327 | 'body' => [ |
| 328 | 'id' => (int) ($page['id'] ?? 0), |
| 329 | 'lang' => (string) ($page['lang'] ?? ''), |
| 330 | 'question' => (string) ($page['page_title'] ?? ''), |
| 331 | 'answer' => strip_tags((string) ($page['content'] ?? '')), |
| 332 | 'keywords' => '', |
| 333 | 'category_id' => 0, |
| 334 | 'content_type' => 'page', |
| 335 | 'slug' => (string) ($page['slug'] ?? ''), |
| 336 | ], |
| 337 | ]; |
| 338 | |
| 339 | try { |
| 340 | return $this->client->index($params); |
| 341 | } catch (Exception $e) { |
| 342 | $this->configuration->getLogger()->error('Index custom page error.', [$e->getMessage()]); |
| 343 | return ['error' => $e->getMessage()]; |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | /** |
| 348 | * Updates a custom page document |
| 349 | * |
| 350 | * @param array<string, mixed> $page |
| 351 | * @return array<array-key, mixed> |
| 352 | */ |
| 353 | public function updateCustomPage(array $page): array |
| 354 | { |
| 355 | // Only index active pages - delete from index if inactive |
| 356 | if (($page['active'] ?? null) === 'n') { |
| 357 | return $this->deleteCustomPage((int) ($page['id'] ?? 0), (string) ($page['lang'] ?? '')); |
| 358 | } |
| 359 | |
| 360 | $params = [ |
| 361 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 362 | 'id' => 'page_' . (string) ($page['id'] ?? '') . '_' . (string) ($page['lang'] ?? ''), |
| 363 | 'body' => [ |
| 364 | 'doc' => [ |
| 365 | 'id' => (int) ($page['id'] ?? 0), |
| 366 | 'lang' => (string) ($page['lang'] ?? ''), |
| 367 | 'question' => (string) ($page['page_title'] ?? ''), |
| 368 | 'answer' => strip_tags((string) ($page['content'] ?? '')), |
| 369 | 'keywords' => '', |
| 370 | 'category_id' => 0, |
| 371 | 'content_type' => 'page', |
| 372 | 'slug' => (string) ($page['slug'] ?? ''), |
| 373 | ], |
| 374 | ], |
| 375 | ]; |
| 376 | |
| 377 | try { |
| 378 | return $this->client->update($params); |
| 379 | } catch (Exception $e) { |
| 380 | // If document doesn't exist, try to create it |
| 381 | if (str_contains($e->getMessage(), 'document_missing_exception')) { |
| 382 | return $this->indexCustomPage($page); |
| 383 | } |
| 384 | $this->configuration->getLogger()->error('Update custom page error.', [$e->getMessage()]); |
| 385 | return ['error' => $e->getMessage()]; |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | /** |
| 390 | * Deletes a custom page document |
| 391 | * |
| 392 | * @return array<array-key, mixed> |
| 393 | */ |
| 394 | public function deleteCustomPage(int $pageId, string $lang): array |
| 395 | { |
| 396 | $params = [ |
| 397 | 'index' => $this->openSearchConfiguration->getIndex(), |
| 398 | 'id' => 'page_' . $pageId . '_' . $lang, |
| 399 | ]; |
| 400 | |
| 401 | try { |
| 402 | return $this->client->delete($params); |
| 403 | } catch (Exception $e) { |
| 404 | return ['error' => $e->getMessage()]; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | /** |
| 409 | * Bulk indexing of custom pages |
| 410 | * |
| 411 | * @param array<int, array<string, mixed>> $pages |
| 412 | * @return array<string, mixed> |
| 413 | */ |
| 414 | public function bulkIndexCustomPages(array $pages): array |
| 415 | { |
| 416 | $params = ['body' => []]; |
| 417 | $i = 1; |
| 418 | |
| 419 | foreach ($pages as $page) { |
| 420 | if ('n' === ($page['active'] ?? 'n')) { |
| 421 | continue; |
| 422 | } |
| 423 | |
| 424 | $params['body'][] = [ |
| 425 | 'index' => [ |
| 426 | '_index' => $this->openSearchConfiguration->getIndex(), |
| 427 | '_id' => 'page_' . (string) ($page['id'] ?? '') . '_' . (string) ($page['lang'] ?? ''), |
| 428 | ], |
| 429 | ]; |
| 430 | |
| 431 | $params['body'][] = [ |
| 432 | 'id' => (int) ($page['id'] ?? 0), |
| 433 | 'lang' => (string) ($page['lang'] ?? ''), |
| 434 | 'question' => (string) ($page['page_title'] ?? ''), |
| 435 | 'answer' => strip_tags((string) ($page['content'] ?? '')), |
| 436 | 'keywords' => '', |
| 437 | 'category_id' => 0, |
| 438 | 'content_type' => 'page', |
| 439 | 'slug' => (string) ($page['slug'] ?? ''), |
| 440 | ]; |
| 441 | |
| 442 | if (($i % 1000) === 0) { |
| 443 | $responses = $this->client->bulk($params); |
| 444 | $params = ['body' => []]; |
| 445 | unset($responses); |
| 446 | } |
| 447 | |
| 448 | ++$i; |
| 449 | } |
| 450 | |
| 451 | // Send the last batch if it exists |
| 452 | $responses = null; |
| 453 | if (($params['body'] ?? []) !== []) { |
| 454 | $responses = $this->client->bulk($params); |
| 455 | } |
| 456 | |
| 457 | if ($responses !== null) { |
| 458 | return ['success' => $responses]; |
| 459 | } |
| 460 | |
| 461 | return ['success' => true]; |
| 462 | } |
| 463 | } |