Enhance OCI quoting by using the Zend Framework OCI code for quoting

lib/Doctrine/DBAL/Driver/OCI8/OCI8Connection.php

@@ -81,9 +81,13 @@ class OCI8Connection implements \Doctrine\DBAL\Driver\Connection
      * @param int $type PDO::PARAM* 
      * @return mixed
      */
-    public function quote($input, $type=\PDO::PARAM_STR)
+    public function quote($value, $type=\PDO::PARAM_STR)
     {
-        return is_numeric($input) ? $input : "'" . str_replace("'", "''", $input) . "'";
+        if (is_int($value) || is_float($value)) {
+            return $value;
+        }
+        $value = str_replace("'", "''", $value);
+        return "'" . addcslashes($value, "\000\n\r\\\032") . "'";
     }
 
     /**

tests/Doctrine/Tests/DBAL/Functional/DataAccessTest.php

@@ -269,4 +269,12 @@ class DataAccessTest extends \Doctrine\Tests\DbalFunctionalTestCase
         $this->assertEquals('2010-03-01', date('Y-m-d', strtotime($row['add_month'])), "Adding month should end up on 2010-03-01");
         $this->assertEquals('2009-11-01', date('Y-m-d', strtotime($row['sub_month'])), "Adding month should end up on 2009-11-01");
     }
+
+    public function testQuoteSQLInjection()
+    {
+        $sql = "SELECT * FROM fetch_table WHERE test_string = " . $this->_conn->quote("bar' OR '1'='1");
+        $rows = $this->_conn->fetchAll($sql);
+
+        $this->assertEquals(0, count($rows), "no result should be returned, otherwise SQL injection is possible");
+    }
 }
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