From 707d5ae3899947fae6668a119d7bc31cb9f14fc2 Mon Sep 17 00:00:00 2001
From: Hanno Hecker <hanno.hecker@zalando.de>
Date: Thu, 4 May 2017 11:55:43 +0200
Subject: [PATCH] make Get(Raw)AttributeValues compare case insensitive

This is the same way an LDAP server compares during a search request.

Fixes #109
---
 search.go      |  6 ++++--
 search_test.go | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/search.go b/search.go
index 2a99894c..83ef6a37 100644
--- a/search.go
+++ b/search.go
@@ -128,8 +128,9 @@ type Entry struct {
 
 // GetAttributeValues returns the values for the named attribute, or an empty list
 func (e *Entry) GetAttributeValues(attribute string) []string {
+	attribute = strings.ToLower(attribute)
 	for _, attr := range e.Attributes {
-		if attr.Name == attribute {
+		if strings.ToLower(attr.Name) == attribute {
 			return attr.Values
 		}
 	}
@@ -138,8 +139,9 @@ func (e *Entry) GetAttributeValues(attribute string) []string {
 
 // GetRawAttributeValues returns the byte values for the named attribute, or an empty list
 func (e *Entry) GetRawAttributeValues(attribute string) [][]byte {
+	attribute = strings.ToLower(attribute)
 	for _, attr := range e.Attributes {
-		if attr.Name == attribute {
+		if strings.ToLower(attr.Name) == attribute {
 			return attr.ByteValues
 		}
 	}
diff --git a/search_test.go b/search_test.go
index efb8147d..c03f23a2 100644
--- a/search_test.go
+++ b/search_test.go
@@ -29,3 +29,21 @@ func TestNewEntry(t *testing.T) {
 		iteration = iteration + 1
 	}
 }
+
+func TestGetAttributeValue(t *testing.T) {
+	dn := "testDN"
+	attributes := map[string][]string{
+		"Alpha":   {"value"},
+		"bEta":    {"value"},
+		"gaMma":   {"value"},
+		"delTa":   {"value"},
+		"epsiLon": {"value"},
+	}
+	entry := NewEntry(dn, attributes)
+	if entry.GetAttributeValue("Alpha") != "value" {
+		t.Errorf("failed to get attribute in original case")
+	}
+	if entry.GetAttributeValue("alpha") != "value" {
+		t.Errorf("failed to get attribute in changed case")
+	}
+}