1 files changed, 44 insertions, 0 deletions
diff --git a/pim/cmd/caldavfs/rsvp.go b/pim/cmd/caldavfs/rsvp.go
index 47d7425..25015a7 100644
--- a/pim/cmd/caldavfs/rsvp.go
+++ b/pim/cmd/caldavfs/rsvp.go
@@ -149,3 +149,47 @@ func quoteETag(s string) string {
 	}
 	return `"` + s + `"`
 }
+
+// Create adds an event to the collection.
+//
+// The path is ours to choose, so it is derived from the UID: a server
+// that already has that object will replace it, which is what a second
+// PUT of the same event should do. With calendar-auto-schedule the
+// server mails every ATTENDEE for us, so creating an event with
+// attendees is the whole of sending an invitation.
+func (b *backend) Create(c *ical.Calendar) error {
+	var uid string
+	for _, e := range c.Events() {
+		if u, err := e.Props.Text(ical.PropUID); err == nil && u != "" {
+			uid = u
+			break
+		}
+	}
+	if uid == "" {
+		return fmt.Errorf("create: the event has no UID")
+	}
+
+	name := slugUID(uid) + ".ics"
+	path := strings.TrimSuffix(b.path, "/") + "/" + name
+	// no etag: this is a create, and If-Match on nothing is meaningless
+	return b.put(objref{path: path}, c)
+}
+
+// slugUID makes a UID safe as one path element.
+func slugUID(s string) string {
+	var out []rune
+	for _, r := range s {
+		switch {
+		case r >= 'a' && r <= 'z', r >= 'A' && r <= 'Z', r >= '0' && r <= '9':
+			out = append(out, r)
+		case r == '-', r == '.', r == '_':
+			out = append(out, r)
+		default:
+			out = append(out, '-')
+		}
+	}
+	if len(out) > 100 {
+		out = out[:100]
+	}
+	return string(out)
+}