wip: caldav: add support for reports

caldav/elements.go

@@ -2,6 +2,7 @@ package caldav
 
 import (
 	"encoding/xml"
+	"fmt"
 	"time"
 
 	"github.com/emersion/go-webdav/internal"
@@ -14,8 +15,12 @@ var (
 
 	calendarDescriptionName           = xml.Name{namespace, "calendar-description"}
 	supportedCalendarDataName         = xml.Name{namespace, "supported-calendar-data"}
+	supportedCalendarComponentSetName = xml.Name{namespace, "supported-calendar-component-set"}
 	maxResourceSizeName               = xml.Name{namespace, "max-resource-size"}
 
+	calendarQueryName    = xml.Name{namespace, "calendar-query"}
+	calendarMultigetName = xml.Name{namespace, "calendar-multiget"}
+
 	calendarName = xml.Name{namespace, "calendar"}
 )
 
@@ -37,6 +42,12 @@ type supportedCalendarData struct {
 	Types   []calendarDataType `xml:"calendar-data"`
 }
 
+// https://tools.ietf.org/html/rfc4791#section-5.2.3
+type supportedCalendarComponentSet struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:caldav supported-calendar-component-set"`
+	Comp    []comp   `xml:"comp"`
+}
+
 // https://tools.ietf.org/html/rfc4791#section-9.6
 type calendarDataType struct {
 	XMLName     xml.Name `xml:"urn:ietf:params:xml:ns:caldav calendar-data"`
@@ -160,3 +171,25 @@ type calendarDataResp struct {
 	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:caldav calendar-data"`
 	Data    []byte   `xml:",chardata"`
 }
+
+type reportReq struct {
+	Query    *calendarQuery
+	Multiget *calendarMultiget
+	// TODO: CALDAV:free-busy-query
+}
+
+func (r *reportReq) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
+	var v interface{}
+	switch start.Name {
+	case calendarQueryName:
+		r.Query = &calendarQuery{}
+		v = r.Query
+	case calendarMultigetName:
+		r.Multiget = &calendarMultiget{}
+		v = r.Multiget
+	default:
+		return fmt.Errorf("caldav: unsupported REPORT root %q %q", start.Name.Space, start.Name.Local)
+	}
+
+	return d.DecodeElement(v, &start)
+}

internal/server.go

@@ -7,6 +7,9 @@ import (
 	"net/http"
 	"net/url"
 	"strings"
+
+	"bytes"
+	"log"
 )
 
 func ServeError(w http.ResponseWriter, err error) {
@@ -38,6 +41,13 @@ func ServeXML(w http.ResponseWriter) *xml.Encoder {
 func ServeMultistatus(w http.ResponseWriter, ms *Multistatus) error {
 	// TODO: streaming
 	w.WriteHeader(http.StatusMultiStatus)
+
+	var buf bytes.Buffer
+	enc := xml.NewEncoder(&buf)
+	enc.Indent("  ", "  ")
+	enc.Encode(&ms)
+	log.Println(">>", buf.String())
+
 	return ServeXML(w).Encode(ms)
 }
 
@@ -129,6 +139,12 @@ func (h *Handler) handlePropfind(w http.ResponseWriter, r *http.Request) error {
 		return err
 	}
 
+	var buf bytes.Buffer
+	enc := xml.NewEncoder(&buf)
+	enc.Indent("  ", "  ")
+	enc.Encode(&propfind)
+	log.Println("<< PROPFIND", r.URL, buf.String())
+
 	depth := DepthInfinity
 	if s := r.Header.Get("Depth"); s != "" {
 		var err error