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<?php |
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namespace Lagdo\DbAdmin\Db; |
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use Lagdo\DbAdmin\Driver\DriverInterface; |
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use Exception; |
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use function trim; |
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use function implode; |
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use function is_numeric; |
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use function preg_match; |
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use function preg_replace; |
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use function strtoupper; |
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use function uniqid; |
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class Admin |
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{ |
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use Traits\AdminQueryTrait; |
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use Traits\UserAdminTrait; |
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/** |
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* @var Util |
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*/ |
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public $util; |
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/** |
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* @var DriverInterface |
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*/ |
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public $driver; |
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/** |
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* @var Translator |
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*/ |
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protected $trans; |
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/** |
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* The constructor |
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* |
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* @param Util $util |
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* @param DriverInterface $driver |
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* @param Translator $trans |
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*/ |
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public function __construct(Util $util, DriverInterface $driver, Translator $trans) |
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{ |
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$this->util = $util; |
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$this->driver = $driver; |
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$this->trans = $trans; |
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} |
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/** |
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* Create SQL condition from parsed query string |
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* |
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* @param array $where Parsed query string |
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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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public function where(array $where, array $fields = []): string |
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{ |
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$clauses = []; |
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$wheres = $where["where"] ?? []; |
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foreach ((array) $wheres as $key => $value) { |
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$key = $this->util->bracketEscape($key, 1); // 1 - back |
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$column = $this->util->escapeKey($key); |
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$clauses[] = $column . |
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// LIKE because of floats but slow with ints |
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($this->driver->jush() == "sql" && is_numeric($value) && preg_match('~\.~', $value) ? " LIKE " . |
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$this->driver->quote($value) : ($this->driver->jush() == "mssql" ? " LIKE " . |
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$this->driver->quote(preg_replace('~[_%[]~', '[\0]', $value)) : " = " . // LIKE because of text |
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$this->driver->unconvertField($fields[$key], $this->driver->quote($value)))); //! enum and set |
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if ($this->driver->jush() == "sql" && |
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preg_match('~char|text~', $fields[$key]->type) && preg_match("~[^ -@]~", $value)) { |
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// not just [a-z] to catch non-ASCII characters |
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$clauses[] = "$column = " . $this->driver->quote($value) . " COLLATE " . $this->driver->charset() . "_bin"; |
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} |
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} |
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$nulls = $where["null"] ?? []; |
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foreach ((array) $nulls as $key) { |
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$clauses[] = $this->util->escapeKey($key) . " IS NULL"; |
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} |
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return implode(" AND ", $clauses); |
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} |
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/** |
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* Remove current user definer from SQL command |
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* |
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* @param string $query |
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* |
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* @return string |
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*/ |
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public function removeDefiner(string $query): string |
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{ |
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return preg_replace('~^([A-Z =]+) DEFINER=`' . |
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preg_replace('~@(.*)~', '`@`(%|\1)', $this->driver->user()) . |
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'`~', '\1', $query); //! proper escaping of user |
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} |
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/** |
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* Find out foreign keys for each column |
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* |
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* @param string $table |
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* |
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* @return array |
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*/ |
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public function columnForeignKeys(string $table): array |
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{ |
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$keys = []; |
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foreach ($this->driver->foreignKeys($table) as $foreignKey) { |
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foreach ($foreignKey->source as $val) { |
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$keys[$val][] = $foreignKey; |
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} |
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} |
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return $keys; |
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} |
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/** |
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* Drop old object and redirect |
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* |
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* @param string $drop Drop old object query |
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* |
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* @return void |
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* @throws Exception |
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*/ |
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public function drop(string $drop) |
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{ |
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$this->executeQuery($drop); |
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} |
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/** |
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* Create a view |
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* |
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* @param array $values The view values |
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* |
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* @return bool |
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* @throws Exception |
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*/ |
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public function createView(array $values) |
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{ |
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// From view.inc.php |
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$name = trim($values['name']); |
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$type = $values['materialized'] ? ' MATERIALIZED VIEW ' : ' VIEW '; |
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$sql = ($this->driver->jush() === 'mssql' ? 'ALTER' : 'CREATE OR REPLACE') . |
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$type . $this->driver->table($name) . " AS\n" . $values['select']; |
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return $this->executeQuery($sql); |
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} |
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/** |
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* Update a view |
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* |
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* @param string $view The view name |
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* @param array $values The view values |
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* |
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* @return string |
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* @throws Exception |
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*/ |
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public function updateView(string $view, array $values): string |
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{ |
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// From view.inc.php |
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$origType = 'VIEW'; |
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if ($this->driver->jush() === 'pgsql') { |
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$status = $this->driver->tableStatus($view); |
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$origType = strtoupper($status->engine); |
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} |
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$name = trim($values['name']); |
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$type = $values['materialized'] ? 'MATERIALIZED VIEW' : 'VIEW'; |
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$tempName = $name . '_adminer_' . uniqid(); |
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return $this->dropAndCreate("DROP $origType " . $this->driver->table($view), |
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"CREATE $type " . $this->driver->table($name) . " AS\n" . $values['select'], |
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"DROP $type " . $this->driver->table($name), |
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"CREATE $type " . $this->driver->table($tempName) . " AS\n" . $values['select'], |
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"DROP $type " . $this->driver->table($tempName), $view, $name); |
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} |
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/** |
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* Drop a view |
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* |
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* @param string $view The view name |
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* |
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* @return bool |
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* @throws Exception |
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*/ |
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public function dropView(string $view): bool |
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{ |
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// From view.inc.php |
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$origType = 'VIEW'; |
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if ($this->driver->jush() == 'pgsql') { |
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$status = $this->driver->tableStatus($view); |
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$origType = strtoupper($status->engine); |
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} |
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$sql = "DROP $origType " . $this->driver->table($view); |
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return $this->executeQuery($sql); |
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} |
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} |
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