From 036b402e9f630f57488acad3696adb619f6fcacc Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kspearrin@users.noreply.github.com>
Date: Sat, 18 Jul 2020 08:08:57 -0400
Subject: [PATCH] update ip IsInternal() to account for missed ranges (#827)

* update ip IsInternal() to account for missed ranges

* update with `::`
---
 src/Icons/Services/IconFetchingService.cs | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/Icons/Services/IconFetchingService.cs b/src/Icons/Services/IconFetchingService.cs
index f7e789fd1..d2acfe106 100644
--- a/src/Icons/Services/IconFetchingService.cs
+++ b/src/Icons/Services/IconFetchingService.cs
@@ -419,15 +419,28 @@ namespace Bit.Icons.Services
             {
                 return true;
             }
-            else if (ip.ToString() == "::1")
+
+            var ipString = ip.ToString();
+            if (ipString == "::1" || ipString == "::")
             {
-                return false;
+                return true;
             }
 
+            // IPv6
+            if (ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
+            {
+                return ipString.StartsWith("fc") || ipString.StartsWith("fd") ||
+                    ipString.StartsWith("fe") || ipString.StartsWith("ff");
+            }
+
+            // IPv4
             var bytes = ip.GetAddressBytes();
             return (bytes[0]) switch
             {
+                0 => true,
                 10 => true,
+                127 => true,
+                169 => bytes[1] == 254, // Cloud environments, such as AWS
                 172 => bytes[1] < 32 && bytes[1] >= 16,
                 192 => bytes[1] == 168,
                 _ => false,