Merge origin/dev-v7-deploy into dev-v8-zbwip (builds)

src/Umbraco.Core/ByteArrayExtensions.cs

@@ -0,0 +1,39 @@
+namespace Umbraco.Core
+{
+    public static class ByteArrayExtensions
+    {
+        private static readonly char[] BytesToHexStringLookup = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+
+        public static string ToHexString(this byte[] bytes)
+        {
+            int i = 0, p = 0, bytesLength = bytes.Length;
+            var chars = new char[bytesLength * 2];
+            while (i < bytesLength)
+            {
+                var b = bytes[i++];
+                chars[p++] = BytesToHexStringLookup[b / 0x10];
+                chars[p++] = BytesToHexStringLookup[b % 0x10];
+            }
+            return new string(chars, 0, chars.Length);
+        }
+
+        public static string ToHexString(this byte[] bytes, char separator, int blockSize, int blockCount)
+        {
+            int p = 0, bytesLength = bytes.Length, count = 0, size = 0;
+            var chars = new char[bytesLength * 2 + blockCount];
+            for (var i = 0; i < bytesLength; i++)
+            {
+                var b = bytes[i++];
+                chars[p++] = BytesToHexStringLookup[b / 0x10];
+                chars[p++] = BytesToHexStringLookup[b % 0x10];
+                if (count == blockCount) continue;
+                if (++size < blockSize) continue;
+
+                chars[p++] = '/';
+                size = 0;
+                count++;
+            }
+            return new string(chars, 0, chars.Length);
+        }
+    }
+}