From 48b0d9f3009d2e908027111b6b1b6691f8be4b77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tadeusz=20=E2=80=9Etadzik=E2=80=9D=20So=C5=9Bnierz?=
 <tadeusz@sosnierz.com>
Date: Fri, 13 Dec 2019 13:31:41 +0100
Subject: [PATCH] Workaround SabreDAV's "funny" behaviour for contact sync

---
 lib/Net/CardDAVTalk.pm | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/Net/CardDAVTalk.pm b/lib/Net/CardDAVTalk.pm
index 84e6bd4..213ad70 100644
--- a/lib/Net/CardDAVTalk.pm
+++ b/lib/Net/CardDAVTalk.pm
@@ -654,6 +654,12 @@ sub SyncContactLinks {
         # Missing properties return 404 status response, ignore
 
       }
+      elsif ($Status =~ m/ 418 /) {
+        # Sabredav thinks it's funny to return 418 for missing entries.
+        # What they mean here is that this contact has since been removed.
+        # See https://github.com/sabre-io/dav/pull/734
+        push @Removed, $href;
+      }
       else {
         warn "ODD STATUS";
         push @Errors, "Odd status in propstat response $href: $Status";