9 files changed, 91 insertions, 0 deletions
diff --git a/phpBB/phpbb/db/driver/driver.php b/phpBB/phpbb/db/driver/driver.php
index 3e9110d8bc..ed650bd6a9 100644
--- a/phpBB/phpbb/db/driver/driver.php
+++ b/phpBB/phpbb/db/driver/driver.php
@@ -372,6 +372,17 @@ abstract class driver implements driver_interface
 	/**
 	* {@inheritDoc}
 	*/
+	function sql_not_like_expression($expression)
+	{
+		$expression = utf8_str_replace(array('_', '%'), array("\_", "\%"), $expression);
+		$expression = utf8_str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);
+
+		return $this->_sql_like_expression('NOT LIKE \'' . $this->sql_escape($expression) . '\'');
+	}
+
+	/**
+	* {@inheritDoc}
+	*/
 	public function sql_case($condition, $action_true, $action_false = false)
 	{
 		$sql_case = 'CASE WHEN ' . $condition;
diff --git a/phpBB/phpbb/db/driver/driver_interface.php b/phpBB/phpbb/db/driver/driver_interface.php
index 6722d059a5..8b487c5d42 100644
--- a/phpBB/phpbb/db/driver/driver_interface.php
+++ b/phpBB/phpbb/db/driver/driver_interface.php
@@ -419,6 +419,16 @@ interface driver_interface
 	public function sql_like_expression($expression);
 
 	/**
+	* Correctly adjust NOT LIKE expression for special characters
+	* Some DBMS are handling them in a different way
+	*
+	* @param	string	$expression	The expression to use. Every wildcard is
+	*						escaped, except $this->any_char and $this->one_char
+	* @return string	A SQL statement like: "NOT LIKE 'bertie_%'"
+	*/
+	public function sql_not_like_expression($expression);
+
+	/**
 	* Explain queries
 	*
 	* @param	string	$mode		Available modes: display, start, stop,
diff --git a/phpBB/phpbb/db/driver/factory.php b/phpBB/phpbb/db/driver/factory.php
index f0fa18051b..fb3a826254 100644
--- a/phpBB/phpbb/db/driver/factory.php
+++ b/phpBB/phpbb/db/driver/factory.php
@@ -420,6 +420,14 @@ class factory implements driver_interface
 	/**
 	* {@inheritdoc}
 	*/
+	public function sql_not_like_expression($expression)
+	{
+		return $this->get_driver()->sql_not_like_expression($expression);
+	}
+
+	/**
+	* {@inheritdoc}
+	*/
 	public function sql_report($mode, $query = '')
 	{
 		return $this->get_driver()->sql_report($mode, $query);
diff --git a/phpBB/phpbb/db/driver/mssql.php b/phpBB/phpbb/db/driver/mssql.php
index 268463a151..f9ea884ce2 100644
--- a/phpBB/phpbb/db/driver/mssql.php
+++ b/phpBB/phpbb/db/driver/mssql.php
@@ -351,6 +351,15 @@ class mssql extends \phpbb\db\driver\driver
 	}
 
 	/**
+	* Build NOT LIKE expression
+	* @access private
+	*/
+	function _sql_not_like_expression($expression)
+	{
+		return $expression . " ESCAPE '\\'";
+	}
+
+	/**
 	* return sql error array
 	* @access private
 	*/
diff --git a/phpBB/phpbb/db/driver/mssql_base.php b/phpBB/phpbb/db/driver/mssql_base.php
index e7101903b8..514df9eaca 100644
--- a/phpBB/phpbb/db/driver/mssql_base.php
+++ b/phpBB/phpbb/db/driver/mssql_base.php
@@ -52,6 +52,15 @@ abstract class mssql_base extends \phpbb\db\driver\driver
 	}
 
 	/**
+	* Build NOT LIKE expression
+	* @access private
+	*/
+	function _sql_not_like_expression($expression)
+	{
+		return $expression . " ESCAPE '\\'";
+	}
+
+	/**
 	* Build db-specific query data
 	* @access private
 	*/
diff --git a/phpBB/phpbb/db/driver/mysql_base.php b/phpBB/phpbb/db/driver/mysql_base.php
index e7c9b63f20..5e0b359134 100644
--- a/phpBB/phpbb/db/driver/mysql_base.php
+++ b/phpBB/phpbb/db/driver/mysql_base.php
@@ -112,6 +112,15 @@ abstract class mysql_base extends \phpbb\db\driver\driver
 	}
 
 	/**
+	* Build NOT LIKE expression
+	* @access private
+	*/
+	function _sql_not_like_expression($expression)
+	{
+		return $expression;
+	}
+
+	/**
 	* Build db-specific query data
 	* @access private
 	*/
diff --git a/phpBB/phpbb/db/driver/oracle.php b/phpBB/phpbb/db/driver/oracle.php
index d1a186f1ba..6dcab5dd7d 100644
--- a/phpBB/phpbb/db/driver/oracle.php
+++ b/phpBB/phpbb/db/driver/oracle.php
@@ -645,6 +645,15 @@ class oracle extends \phpbb\db\driver\driver
 		return $expression . " ESCAPE '\\'";
 	}
 
+	/**
+	* Build NOT LIKE expression
+	* @access private
+	*/
+	function _sql_not_like_expression($expression)
+	{
+		return $expression . " ESCAPE '\\'";
+	}
+
 	function _sql_custom_build($stage, $data)
 	{
 		return $data;
diff --git a/phpBB/phpbb/db/driver/postgres.php b/phpBB/phpbb/db/driver/postgres.php
index 83e9fa51f6..a3b9aa4c6b 100644
--- a/phpBB/phpbb/db/driver/postgres.php
+++ b/phpBB/phpbb/db/driver/postgres.php
@@ -371,6 +371,15 @@ class postgres extends \phpbb\db\driver\driver
 	}
 
 	/**
+	* Build NOT LIKE expression
+	* @access private
+	*/
+	function _sql_not_like_expression($expression)
+	{
+		return $expression;
+	}
+
+	/**
 	* {@inheritDoc}
 	*/
 	function cast_expr_to_bigint($expression)
diff --git a/phpBB/phpbb/db/driver/sqlite.php b/phpBB/phpbb/db/driver/sqlite.php
index 2112e5ba2f..841662c1ed 100644
--- a/phpBB/phpbb/db/driver/sqlite.php
+++ b/phpBB/phpbb/db/driver/sqlite.php
@@ -288,6 +288,23 @@ class sqlite extends \phpbb\db\driver\driver
 	}
 
 	/**
+	* {@inheritDoc}
+	*
+	* For SQLite an underscore is a not-known character... this may change with SQLite3
+	*/
+	function sql_not_like_expression($expression)
+	{
+		// Unlike LIKE, GLOB is case sensitive (unfortunatly). SQLite users need to live with it!
+		// We only catch * and ? here, not the character map possible on file globbing.
+		$expression = str_replace(array(chr(0) . '_', chr(0) . '%'), array(chr(0) . '?', chr(0) . '*'), $expression);
+
+		$expression = str_replace(array('?', '*'), array("\?", "\*"), $expression);
+		$expression = str_replace(array(chr(0) . "\?", chr(0) . "\*"), array('?', '*'), $expression);
+
+		return 'GLOB \'' . $this->sql_escape($expression) . '\'';
+	}
+
+	/**
 	* return sql error array
 	* @access private
 	*/