caldav: add Client.QueryCalendar

caldav/caldav.go

@@ -3,9 +3,34 @@
 // CalDAV is defined in RFC 4791.
 package caldav
 
+import (
+	"time"
+)
+
 type Calendar struct {
 	Path            string
 	Name            string
 	Description     string
 	MaxResourceSize int64
 }
+
+type CalendarCompRequest struct {
+	Name string
+
+	AllProps bool
+	Props    []string
+
+	AllComps bool
+	Comps    []CalendarCompRequest
+}
+
+type CalendarQuery struct {
+	Comp CalendarCompRequest
+}
+
+type CalendarObject struct {
+	Path    string
+	ModTime time.Time
+	ETag    string
+	Data    []byte
+}