Improve user management

Author: HarveyKandola

README.md

@@ -13,13 +13,9 @@ All you need to provide is PostgreSQL, Microsoft SQL Server or any MySQL variant
 
 ## Latest Release
 
-[Community Edition: v3.8.1](https://github.com/documize/community/releases)
+[Community Edition: v3.8.2](https://github.com/documize/community/releases)
 
-[Enterprise Edition: v3.8.1](https://www.documize.com/downloads)
-
-> *We provide frequent product updates for both cloud and self-hosted customers.*
->
-> **Harvey Kandola, CEO/Founder @ Documize**
+[Enterprise Edition: v3.8.2](https://www.documize.com/downloads)
 
 ## OS Support
 
@@ -50,7 +46,7 @@ For all database types, Full-Text Search support (FTS) is mandatory.
 
 ## Technology Stack
 
-- Go (v1.14.3)
+- Go (v1.15.5)
 - Ember JS (v3.12.0)
 
 ## Authentication Options

core/stringutil/sanitize.go

@@ -0,0 +1,50 @@
+// Copyright 2016 Documize Inc. <[email protected]>. All rights reserved.
+//
+// This software (Documize Community Edition) is licensed under
+// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
+//
+// You can operate outside the AGPL restrictions by purchasing
+// Documize Enterprise Edition and obtaining a commercial license
+// by contacting <[email protected]>.
+//
+// https://documize.com
+
+package stringutil
+
+import (
+	"strings"
+)
+
+// CleanDBValue returns like query minus dodgy characters.
+func CleanDBValue(filter string) string {
+	filter = strings.ReplaceAll(filter, " ", "")
+	filter = strings.ReplaceAll(filter, " ' ", "")
+	filter = strings.ReplaceAll(filter, "'", "")
+	filter = strings.ReplaceAll(filter, " ` ", "")
+	filter = strings.ReplaceAll(filter, "`", "")
+	filter = strings.ReplaceAll(filter, " \" ", "")
+	filter = strings.ReplaceAll(filter, "\"", "")
+	filter = strings.ReplaceAll(filter, " -- ", "")
+	filter = strings.ReplaceAll(filter, "--", "")
+	filter = strings.ReplaceAll(filter, ";", "")
+	filter = strings.ReplaceAll(filter, ":", "")
+	filter = strings.ReplaceAll(filter, "~", "")
+	filter = strings.ReplaceAll(filter, "!", "")
+	filter = strings.ReplaceAll(filter, "#", "")
+	filter = strings.ReplaceAll(filter, "%", "")
+	filter = strings.ReplaceAll(filter, "*", "")
+	filter = strings.ReplaceAll(filter, "\\", "")
+	filter = strings.ReplaceAll(filter, "/", "")
+	filter = strings.ReplaceAll(filter, "union select", "")
+	filter = strings.ReplaceAll(filter, "UNION SELECT", "")
+	filter = strings.ReplaceAll(filter, " from ", "")
+	filter = strings.ReplaceAll(filter, " FROM ", "")
+	filter = strings.ReplaceAll(filter, " OR 1=1 ", "")
+	filter = strings.ReplaceAll(filter, " OR 1=1 ", "")
+	filter = strings.ReplaceAll(filter, " = ", "")
+	filter = strings.ReplaceAll(filter, "=", "")
+
+	filter = strings.TrimSpace(filter)
+
+	return filter
+}