From 4306f6fd2e2c0274f554e96ac399cc60922e83a8 Mon Sep 17 00:00:00 2001
From: Michael Joseph <michael@knowledgetree.com>
Date: Wed, 18 Aug 2004 09:27:31 +0000
Subject: [PATCH] Added reference to database type. Added db quoting library functions.

---
 lib/database/db.inc     |  7 +++++--
 lib/database/escape.inc | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 2 deletions(-)
 create mode 100644 lib/database/escape.inc

diff --git a/lib/database/db.inc b/lib/database/db.inc
index 17c7699..eec82ae 100644
--- a/lib/database/db.inc
+++ b/lib/database/db.inc
@@ -1,4 +1,6 @@
 <?php
+require_once("$default->fileSystemRoot/phplib/db_" . $default->dbType .".inc");
+require_once("$default->fileSystemRoot/lib/database/escape.inc");
 /**
  * $Id$
  *
@@ -28,7 +30,8 @@ class Database extends DB_Sql {
     
     /** Class name */
     var $classname = "Database";
-  
+    /** Database type */
+    var $databaseType = "mysql";
     /** Host name.  Retrieved from config/environment.php */
     var $Host = ""; 
     /** Database name */
@@ -53,8 +56,8 @@ class Database extends DB_Sql {
       $this->Database = $default->dbName;
       $this->User = $default->dbUser;
       $this->Password = $default->dbPass;
+      $this->databaseType = $default->dbType;
     }
-    // END wes changes
     
     /**
     *   Create a query from the provided paramaters.  The ID column
diff --git a/lib/database/escape.inc b/lib/database/escape.inc
new file mode 100644
index 0000000..dd2fc35
--- /dev/null
+++ b/lib/database/escape.inc
@@ -0,0 +1,68 @@
+<?php 
+
+/**
+ * $Id$
+ *
+ * Handles database value escaping.
+ *
+ * Copyright (c) 2003 Jam Warehouse http://www.jamwarehouse.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * @version $Revision$
+ * @author Michael Joseph, Jam Warehouse (Pty) Ltd, South Africa
+ */
+
+/**
+ * Apply stripslashes recursively.
+ * [From php.net/mysql-real-escape-string]
+ */
+function stripslashes_deep($value) {
+	$value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);
+	return $value;
+}
+/**
+ * Quote a variable to make it safe for rdbms processing.
+ * This includes some SQL injection combatting side-effects.
+ * [From php.net/mysql-real-escape-string] 
+ */
+//TODO: add tablename/fieldname escaping function from forum.pear:db
+//      move to pear::db in the medium term, instead of implementing XSS,sql injection prevention code 
+function quote($value) {
+    global $default;
+	// Stripslashes if we need to
+	if (get_magic_quotes_gpc()) {
+		$value = stripslashes_deep($value);
+	}
+
+    if (is_numeric($value)) {
+        return $value;
+    } elseif (is_bool($value)) {
+        return $value ? 1 : 0;
+    } elseif (is_null($value)) {
+        return 'NULL';
+    } else {
+		// only use the mysql api function if we're using mysql
+        // ??: is the api function still available to php if its not compiled in
+        // ??: it is in by default isn't it?
+		if ($default->dbType == "mysql") {
+			$value = "'" . mysql_real_escape_string($value) . "'";
+		} else {
+            $value = "'" . addslashes($value) . "'";
+        }
+		return $value;
+	}
+}
+?>
\ No newline at end of file
--
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