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<?php |
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namespace Lagdo\DbAdmin\Db\Traits; |
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use Lagdo\DbAdmin\Driver\Entity\IndexEntity; |
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use Lagdo\DbAdmin\Driver\Entity\TableFieldEntity; |
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use function preg_match; |
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use function implode; |
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use function in_array; |
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trait SelectInputTrait |
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{ |
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/** |
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* Filter length value including enums |
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* |
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* @param string $length |
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* |
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* @return string |
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*/ |
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abstract public function processLength(string $length): string; |
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/** |
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* @param TableFieldEntity $field Single field from fields() |
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* @param string $value |
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* @param string $function |
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* |
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* @return string |
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*/ |
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abstract protected function getUnconvertedFieldValue(TableFieldEntity $field, string $value, string $function = ''): string; |
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/** |
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* @param array $value |
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* @param array $fields |
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* |
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* @return string |
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*/ |
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private function getWhereCondition(array $value, array $fields): string |
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{ |
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$op = $value['op']; |
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$val = $value['val']; |
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$col = $value['col']; |
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if (preg_match('~IN$~', $op)) { |
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$in = $this->processLength($val); |
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return " $op " . ($in !== '' ? $in : '(NULL)'); |
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} |
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if ($op === 'SQL') { |
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return ' ' . $val; // SQL injection |
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} |
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if ($op === 'LIKE %%') { |
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return ' LIKE ' . $this->getUnconvertedFieldValue($fields[$col], "%$val%"); |
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} |
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if ($op === 'ILIKE %%') { |
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return ' ILIKE ' . $this->getUnconvertedFieldValue($fields[$col], "%$val%"); |
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} |
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if ($op === 'FIND_IN_SET') { |
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return ')'; |
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} |
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if (!preg_match('~NULL$~', $op)) { |
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return " $op " . $this->getUnconvertedFieldValue($fields[$col], $val); |
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} |
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return " $op"; |
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} |
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/** |
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* @param TableFieldEntity $field |
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* @param array $value |
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* |
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* @return bool |
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*/ |
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private function selectFieldIsValid(TableFieldEntity $field, array $value): bool |
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{ |
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$op = $value['op']; |
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$val = $value['val']; |
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$in = preg_match('~IN$~', $op) ? ',' : ''; |
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return (preg_match('~^[-\d.' . $in . ']+$~', $val) || |
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!preg_match('~' . $this->driver->numberRegex() . '|bit~', $field->type)) && |
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(!preg_match("~[\x80-\xFF]~", $val) || |
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preg_match('~char|text|enum|set~', $field->type)) && |
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(!preg_match('~date|timestamp~', $field->type) || |
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preg_match('~^\d+-\d+-\d+~', $val)); |
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} |
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/** |
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* @param array $value |
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* @param array $fields |
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* |
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* @return string |
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*/ |
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private function getSelectExpression(array $value, array $fields): string |
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{ |
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$op = $value['op']; |
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$col = $value['col']; |
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$prefix = ''; |
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if ($op === 'FIND_IN_SET') { |
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$prefix = $op .'(' . $this->driver->quote($value['val']) . ', '; |
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} |
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$condition = $this->getWhereCondition($value, $fields); |
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if ($col !== '') { |
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return $prefix . $this->driver->convertSearch($this->driver->escapeId($col), |
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$value, $fields[$col]) . $condition; |
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} |
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// find anywhere |
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$clauses = []; |
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foreach ($fields as $name => $field) { |
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if ($this->selectFieldIsValid($field, $value)) { |
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$clauses[] = $prefix . $this->driver->convertSearch($this->driver->escapeId($name), |
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$value, $field) . $condition; |
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} |
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} |
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if (empty($clauses)) { |
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return '1 = 0'; |
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} |
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return '(' . implode(' OR ', $clauses) . ')'; |
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} |
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/** |
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* @param IndexEntity $index |
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* @param int $i |
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* |
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* @return string |
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*/ |
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private function getMatchExpression(IndexEntity $index, int $i): string |
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{ |
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$columns = array_map(function ($column) { |
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return $this->driver->escapeId($column); |
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}, $index->columns); |
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$match = $this->driver->quote($this->input->values['fulltext'][$i]); |
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if (isset($this->input->values['boolean'][$i])) { |
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$match .= ' IN BOOLEAN MODE'; |
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} |
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return 'MATCH (' . implode(', ', $columns) . ') AGAINST (' . $match . ')'; |
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} |
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/** |
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* Process search box in select |
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* |
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* @param array $fields |
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* @param array $indexes |
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* |
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* @return array |
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*/ |
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public function processSelectWhere(array $fields, array $indexes): array |
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{ |
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$expressions = []; |
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foreach ($indexes as $i => $index) { |
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if ($index->type === 'FULLTEXT' && $this->input->values['fulltext'][$i] !== '') { |
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$expressions[] = $this->getMatchExpression($index, $i); |
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} |
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} |
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foreach ((array) $this->input->values['where'] as $value) { |
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if (($value['col'] !== '' || $value['val'] !== '') && |
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in_array($value['op'], $this->driver->operators())) { |
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$expressions[] = $this->getSelectExpression($value, $fields); |
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} |
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} |
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return $expressions; |
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} |
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} |
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lagdo /
jaxon-dbadmin
