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<?php |
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/** |
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* Classe fornissant des fonctions de protection des injections SQL et d'autres fonctions liées aux requetes |
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* @version 1.0 |
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* @deprecated use \FMUP\Db instead |
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*/ |
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class Sql |
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{ |
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/** |
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* Protège des injections SQL |
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* @param {string} la chaîne à sécuriser |
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* |
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*/ |
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public static function sanitize($value) |
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{ |
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$value = preg_replace('@<script[^>]*?>.*?</script>@si', '[disabled]', $value); |
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return str_replace('\'', '\'\'', $value); |
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} |
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/** |
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* Protège des injections SQL (pour les requètes) |
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* @param {string} la chaîne à sécuriser |
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**/ |
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public static function secure($value) |
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{ |
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return "'" . Sql::sanitize($value) . "'"; |
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} |
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/** |
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* Protège des injections SQL pour les integers |
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* @param {string} la chaîne à sécuriser |
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**/ |
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public static function secureId($value) |
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{ |
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if (Is::id($value)) { |
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return $value; |
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} else { |
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return "null"; // entre guillements pour que ça devienne une requète SQL |
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} |
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} |
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public static function secureListeId($value) |
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{ |
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if ($value) { |
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$values = explode(',', $value); |
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$values = self::secureArray($values); |
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return implode(',', $values); |
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} else { |
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return "0"; // entre guillements pour que ça devienne une requète SQL |
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} |
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} |
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/** |
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* Protège des injections SQL pour les integers |
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* @param {string} la chaîne à sécuriser |
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**/ |
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public static function secureInteger($value) |
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{ |
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$value = strtr($value, ' ', ''); |
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if (Is::integer($value)) { |
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return $value; |
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} else { |
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return "null"; // entre guillements pour que ça devienne une requète SQL |
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} |
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} |
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/** |
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* Protège des injections SQL pour les integers |
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* @param {string} la chaîne à sécuriser |
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**/ |
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public static function secureBoolean($value) |
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{ |
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if (Is::integer($value)) { |
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if ($value) { |
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return "1"; |
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} else { |
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return "0"; |
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} |
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} else { |
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return "0"; // entre guillements pour que ça devienne une requète SQL |
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} |
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} |
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/** |
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* Protège des injections décimales SQL en remplaçant les "," par des "." |
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* @param {Decimal} le Décimal à sécuriser |
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**/ |
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public static function secureDecimal($value) |
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{ |
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$value = str_replace(' ', '', $value); |
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if (Is::decimal($value)) { |
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return str_replace(",", ".", $value); |
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} else { |
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return "null"; |
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} |
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} |
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/** |
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* Protège des injections de date SQL en remplaçant les "" par des null |
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* @param {date} lea date à sécuriser |
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**/ |
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public static function secureDate($value) |
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{ |
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if ($value instanceof \DateTime) { |
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return '"' . $value->format('Y-m-d') . '"'; |
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} |
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if (Is::dateTime($value) || Is::dateTimeUk($value)) { |
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return "'" . $value . "'"; |
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} else { |
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return "null"; |
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} |
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} |
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/** |
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* Protège des injections SQL (pour les requètes) |
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* @param {Array} le tableau à sécuriser |
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**/ |
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public static function secureArray($values) |
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{ |
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return array_map(array('Sql', 'secure'), $values); |
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} |
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public static function replaceXJoins($tabs, $orig_join, &$join = array()) |
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{ |
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foreach ($tabs as $tab) { |
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if (!isset($join[$tab])) { |
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if (isset($orig_join[$tab]['dep'])) { |
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self::replaceXJoins($orig_join[$tab]['dep'], $orig_join, $join); |
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} |
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if (isset($orig_join[$tab])) { |
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$join[$tab] = $orig_join[$tab]['join']; |
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} |
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} |
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} |
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} |
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public static function replaceXFields($tab, $class = null, $option = array(), &$join = array()) |
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{ |
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if ($class) { |
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$fields = call_user_func(array($class, 'xFields'), $option); |
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$orig_fields = array_keys($fields); |
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$dest_fields = array_values($fields); |
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if (isset($option['x_joins'])) { |
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$orig_join = call_user_func(array($class, 'xJoins'), $option); |
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} |
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foreach ($tab as $key => $value) { |
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$tab[$key] = preg_replace($orig_fields, $dest_fields, trim($value)); |
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if (!empty($orig_join)) { |
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preg_match_all("/([[:alpha:]_]+)\./", $tab[$key], $out); |
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self::replaceXJoins($out[1], $orig_join, $join); |
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} |
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} |
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} |
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return $tab; |
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} |
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private static function filterWhere($i) |
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{ |
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return $i <> ""; |
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} |
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/** |
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* Convertit un tableau de conditions en un WHERE conditions |
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* Le deuxième paramètre permet de faire un HAVING à la place |
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* @uses self::filterWhere |
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*/ |
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public static function parseWhere($where, $having = false, $class = null, $option = array()) |
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{ |
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$where = self::replaceXFields($where, $class, $option); |
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if (!is_array($where)) { |
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throw new \FMUP\Exception( |
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"Erreur à l'utilisation de sqlParseWhere : tableau attendu. Reçu : " . serialize($where) |
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); |
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} |
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$where = array_filter($where, array('\Sql', 'filterWhere')); |
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if ($where == array()) { |
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return ""; |
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} else { |
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if ($having) { |
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$result = " HAVING "; |
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} else { |
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$result = " WHERE "; |
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} |
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foreach ($where as $condition) { |
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if ($condition != '') { |
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$result .= '(' . $condition . ') ' . "\n" . 'AND '; |
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} |
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} |
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// suppression du dernier AND |
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$result = substr($result, 0, -5); |
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return $result; |
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} |
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} |
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/* * ******** |
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* Filtres * |
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* ******** */ |
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/** |
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* Cette fonction crée un tableau de conditions LIKE à partir d'un tableau |
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*/ |
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public static function conditionsFromArray($params) |
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{ |
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$where = array(); |
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foreach ($params as $champ => $valeur) { |
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if (0 === strpos($champ, 'id_') || $champ == 'id') { |
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if ($valeur != '') { |
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$where[$champ] = "$champ = " . Sql::secureId($valeur); |
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} |
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} elseif (0 === strpos($champ, "date_")) { |
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$where[$champ] = " CONVERT(VARCHAR, " . $champ . ", 103) LIKE '%" |
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. Sql::sanitize(trim($valeur)) . "%' "; |
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} elseif (0 < strpos($champ, "chrono") && $valeur) { |
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try { |
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$valeur = intval($valeur); |
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} catch (Exception $e) { |
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$valeur = $valeur; |
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} |
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View Code Duplication |
if (0 === strpos($champ, 'equal_')) { |
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$champ = substr($champ, 6); |
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$where[$champ] = "$champ LIKE '" . Sql::sanitize(trim($valeur)) . "'"; |
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} else { |
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$where[$champ] = "$champ LIKE '" . Sql::sanitize(trim($valeur)) . "%'"; |
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} |
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} else { |
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if ($valeur == "null") { |
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$where[$champ] = "$champ IS null"; |
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} elseif ($valeur == "IS NOT null") { |
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$where[$champ] = "$champ IS NOT null"; |
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View Code Duplication |
} elseif ($valeur != '') { |
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if (0 === strpos($champ, 'equal_')) { |
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$champ = substr($champ, 6); |
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$where[$champ] = "$champ = '" . Sql::sanitize(trim($valeur)) . "'"; |
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} else { |
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$where[$champ] = "$champ LIKE '%" . Sql::sanitize(trim($valeur)) . "%'"; |
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} |
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} |
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} |
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} |
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return $where; |
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} |
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} |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.