From c4718a3a49cc4121c38f894a43418b017396be0d Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Sun, 19 Jan 2020 15:10:54 +0100
Subject: [PATCH] carddav: add addressbook-home-set to server

---
 carddav/elements.go | 4 +++-
 carddav/server.go   | 5 ++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/carddav/elements.go b/carddav/elements.go
index 732d870..6664b0c 100644
--- a/carddav/elements.go
+++ b/carddav/elements.go
@@ -10,8 +10,9 @@ import (
 const namespace = "urn:ietf:params:xml:ns:carddav"
 
 var (
+	addressBookHomeSetName = xml.Name{namespace, "addressbook-home-set"}
+
 	addressBookName                 = xml.Name{namespace, "addressbook"}
-	addressBookHomeSetName          = xml.Name{namespace, "addressbook-home-set"}
 	addressBookDescriptionName      = xml.Name{namespace, "addressbook-description"}
 	addressBookQueryName            = xml.Name{namespace, "addressbook-query"}
 	addressBookMultigetName         = xml.Name{namespace, "addressbook-multiget"}
@@ -22,6 +23,7 @@ var (
 	maxResourceSizeName = xml.Name{namespace, "max-resource-size"}
 )
 
+// https://tools.ietf.org/html/rfc6352#section-6.2.3
 type addressbookHomeSet struct {
 	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:carddav addressbook-home-set"`
 	Href    string   `xml:"href"`
diff --git a/carddav/server.go b/carddav/server.go
index da83e0e..8bb9230 100644
--- a/carddav/server.go
+++ b/carddav/server.go
@@ -219,7 +219,10 @@ func (b *backend) propfindAddressBook(propfind *internal.Propfind, ab *AddressBo
 				},
 			}, nil
 		},
-		// TODO: addressbook-home-set
+		// TODO: this is a principal property
+		addressBookHomeSetName: func(*internal.RawXMLValue) (interface{}, error) {
+			return &addressbookHomeSet{Href: "/"}, nil
+		},
 	}
 
 	if ab.MaxResourceSize > 0 {