sync-collection for client

internal/client.go

@@ -190,3 +190,25 @@ func (c *Client) Options(path string) (classes map[string]bool, methods map[stri
 	methods = parseCommaSeparatedSet(resp.Header["Allow"], true)
 	return classes, methods, nil
 }
+
+// SyncCollection perform a `sync-collection` REPORT operation on a resource
+func (c *Client) SyncCollection(path, syncToken string, level Depth, limit *Limit, prop *Prop) (*Multistatus, error) {
+	q := SyncCollectionQuery{
+		SyncToken: syncToken,
+		SyncLevel: string(level),
+		Limit:     limit,
+		Prop:      prop,
+	}
+
+	req, err := c.NewXMLRequest("REPORT", path, &q)
+	if err != nil {
+		return nil, err
+	}
+
+	ms, err := c.DoMultiStatus(req)
+	if err != nil {
+		return nil, err
+	}
+
+	return ms, nil
+}

internal/elements.go

@@ -93,6 +93,7 @@ type Multistatus struct {
 	XMLName             xml.Name   `xml:"DAV: multistatus"`
 	Responses           []Response `xml:"response"`
 	ResponseDescription string     `xml:"responsedescription,omitempty"`
+	SyncToken           string     `xml:"sync-token,omitempty"`
 }
 
 func NewMultistatus(resps ...Response) *Multistatus {
@@ -396,3 +397,18 @@ type Set struct {
 	XMLName xml.Name `xml:"DAV: set"`
 	Prop    Prop     `xml:"prop"`
 }
+
+// https://tools.ietf.org/html/rfc6578#section-6.1
+type SyncCollectionQuery struct {
+	XMLName   xml.Name `xml:"DAV: sync-collection"`
+	SyncToken string   `xml:"sync-token"`
+	Limit     *Limit   `xml:"limit,omitempty"`
+	SyncLevel string   `xml:"sync-level"`
+	Prop      *Prop    `xml:"prop"`
+}
+
+// https://tools.ietf.org/html/rfc5323#section-5.17
+type Limit struct {
+	XMLName  xml.Name `xml:"DAV: limit"`
+	NResults uint     `xml:"nresults"`
+}