carddav: add Client.FindAddressBooks

carddav/carddav.go

@@ -1,3 +1,18 @@
 package carddav
 
+import (
+	"encoding/xml"
+)
+
 const namespace = "urn:ietf:params:xml:ns:carddav"
+
+type AddressBook struct {
+	Href        string
+	Description string
+}
+
+var addressBookName = xml.Name{namespace, "addressbook"}
+
+type AddressBookQuery struct {
+	AddressDataProps []string
+}

carddav/client.go

@@ -26,7 +26,7 @@ func NewClient(c *http.Client, endpoint string) (*Client, error) {
 	return &Client{wc, ic}, nil
 }
 
-func (c *Client) FindAddressbookHomeSet(principal string) (string, error) {
+func (c *Client) FindAddressBookHomeSet(principal string) (string, error) {
 	name := xml.Name{namespace, "addressbook-home-set"}
 	propfind := internal.NewPropPropfind(name)
 
@@ -42,3 +42,50 @@ func (c *Client) FindAddressbookHomeSet(principal string) (string, error) {
 
 	return prop.Href, nil
 }
+
+func (c *Client) FindAddressBooks(addressBookHomeSet string) ([]AddressBook, error) {
+	resTypeName := xml.Name{"DAV:", "resourcetype"}
+	descName := xml.Name{namespace, "addressbook-description"}
+	propfind := internal.NewPropPropfind(resTypeName, descName)
+
+	req, err := c.ic.NewXMLRequest("PROPFIND", addressBookHomeSet, propfind)
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Add("Depth", "1")
+
+	ms, err := c.ic.DoMultiStatus(req)
+	if err != nil {
+		return nil, err
+	}
+
+	l := make([]AddressBook, 0, len(ms.Responses))
+	for i := range ms.Responses {
+		resp := &ms.Responses[i]
+		href, err := resp.Href()
+		if err != nil {
+			return nil, err
+		}
+
+		var resTypeProp internal.ResourceType
+		if err := resp.DecodeProp(resTypeName, &resTypeProp); err != nil {
+			return nil, err
+		}
+		if !resTypeProp.Is(addressBookName) {
+			continue
+		}
+
+		var descProp addressbookDescription
+		if err := resp.DecodeProp(descName, &descProp); err != nil {
+			return nil, err
+		}
+
+		l = append(l, AddressBook{
+			Href:        href,
+			Description: descProp.Data,
+		})
+	}
+
+	return l, nil
+}

carddav/elements.go

@@ -5,6 +5,19 @@ import (
 )
 
 type addressbookHomeSet struct {
-	Name xml.Name `xml:"urn:ietf:params:xml:ns:carddav addressbook-home-set"`
-	Href string   `xml:"href"`
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:carddav addressbook-home-set"`
+	Href    string   `xml:"href"`
+}
+
+type addressbookDescription struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:carddav addressbook-description"`
+	Data    string   `xml:",chardata"`
+}
+
+// https://tools.ietf.org/html/rfc6352#section-10.3
+type addressbookQuery struct {
+	XMLName xml.Name       `xml:"urn:ietf:params:xml:ns:carddav addressbook-query"`
+	Prop    *internal.Prop `xml:"DAV: prop,omitempty"`
+	// TODO: DAV:allprop | DAV:propname
+	// TODO: filter, limit?
 }