129 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			129 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| 
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| declare(strict_types = 1);
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| 
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| // {{{ License
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| 
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| // This file is part of GNU social - https://www.gnu.org/software/social
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| //
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| // GNU social 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 published by
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| // the Free Software Foundation, either version 3 of the License, or
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| // (at your option) any later version.
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| //
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| // GNU social 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 GNU social.  If not, see <http://www.gnu.org/licenses/>.
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| 
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| // }}}
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| 
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| namespace Component\Collection\Util;
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| 
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| use App\Core\Event;
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| use App\Entity\Actor;
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| use App\Util\Exception\ServerException;
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| use Doctrine\Common\Collections\Criteria;
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| 
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| abstract class Parser
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| {
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|     /**
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|      * Merge $parts into $criteria_arr
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|      */
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|     private static function connectParts(array &$parts, array &$criteria_arr, string $last_op, mixed $eb, bool $force = false): void
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|     {
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|         foreach ([' ' => 'orX', '|' => 'orX', '&' => 'andX'] as $op => $func) {
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|             if ($last_op === $op || $force) {
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|                 $criteria_arr[] = $eb->{$func}(...$parts);
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|                 break;
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|             }
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|         }
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|     }
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| 
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|     /**
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|      * Parse $input string into a Doctrine query Criteria
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|      *
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|      * Currently doesn't support nesting with parenthesis and
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|      * recognises either spaces (currently `or`, should be fuzzy match), `OR` or `|` (`or`) and `AND` or `&` (`and`)
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|      *
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|      * TODO: Better fuzzy match, implement exact match with quotes and nesting with parens
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|      *
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|      * @return Criteria[]
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|      */
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|     public static function parse(string $input, ?string $locale = null, ?Actor $actor = null, int $level = 0): array
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|     {
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|         if ($level === 0) {
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|             $input = trim(preg_replace(['/\s+/', '/\s+AND\s+/', '/\s+OR\s+/'], [' ', '&', '|'], $input), ' |&');
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|         }
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| 
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|         $left               = 0;
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|         $right              = 0;
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|         $lenght             = mb_strlen($input);
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|         $eb                 = Criteria::expr();
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|         $note_criteria_arr  = [];
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|         $actor_criteria_arr = [];
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|         $note_parts         = [];
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|         $actor_parts        = [];
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|         $last_op            = null;
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| 
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|         for ($index = 0; $index < $lenght; ++$index) {
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|             $end   = false;
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|             $match = false;
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| 
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|             foreach (['&', '|', ' '] as $delimiter) {
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|                 if ($input[$index] === $delimiter || $end = ($index === $lenght - 1)) {
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|                     $term      = mb_substr($input, $left, $end ? null : $right - $left);
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|                     $note_res  = null;
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|                     $actor_res = null;
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|                     Event::handle('CollectionQueryCreateExpression', [$eb, $term, $locale, $actor, &$note_res, &$actor_res]);
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|                     if (\is_null($note_res) && \is_null($actor_res)) { // @phpstan-ignore-line
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|                         throw new ServerException("No one claimed responsibility for a match term: {$term}");
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|                     }
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|                     if (!empty($note_res)) { // @phpstan-ignore-line
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|                         if (\is_array($note_res)) {
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|                             $note_res = $eb->orX(...$note_res);
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|                         }
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|                         $note_parts[] = $note_res;
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|                     }
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|                     if (!empty($actor_res)) {
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|                         if (\is_array($actor_res)) {
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|                             $actor_res = $eb->orX(...$actor_res);
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|                         }
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|                         $actor_parts[] = $actor_res;
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|                     }
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| 
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|                     $right = $left = $index + 1;
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| 
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|                     if (!\is_null($last_op) && $last_op !== $delimiter) {
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|                         self::connectParts($note_parts, $note_criteria_arr, $last_op, $eb, force: false);
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|                     } else {
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|                         $last_op = $delimiter;
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|                     }
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|                     $match = true;
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|                     break;
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|                 }
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|             }
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|             // TODO
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|             if (!$match) { // @phpstan-ignore-line
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|                 ++$right;
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|             }
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|         }
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| 
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|         $note_criteria  = null;
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|         $actor_criteria = null;
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|         if (!empty($note_parts)) { // @phpstan-ignore-line
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|             self::connectParts($note_parts, $note_criteria_arr, $last_op, $eb, force: true);
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|             $note_criteria = new Criteria($eb->orX(...$note_criteria_arr));
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|         }
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|         if (!empty($actor_parts)) { // @phpstan-ignore-line
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|             self::connectParts($actor_parts, $actor_criteria_arr, $last_op, $eb, force: true);
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|             $actor_criteria = new Criteria($eb->orX(...$actor_criteria_arr));
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|         }
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| 
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|         return [$note_criteria, $actor_criteria];
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|     }
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| }
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