Fix Nextcloud Talk connection failure (#1179)

Fix #1177

Signed-off-by: Gary Kim <gary@garykim.dev>

vendor/gomod.garykim.dev/nc-talk/ocs/capabilities.go

@@ -0,0 +1,42 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocs
+
+// Capabilities describes the response from the capabilities request
+type Capabilities struct {
+	ocs
+	Data struct {
+		Capabilities struct {
+			SpreedCapabilities SpreedCapabilities `json:"spreed"`
+		} `json:"capabilities"`
+	} `json:"data"`
+}
+
+// SpreedCapabilities describes the Nextcloud Talk capabilities response
+type SpreedCapabilities struct {
+	Features []string `json:"features"`
+	Config   struct {
+		Attachments struct {
+			Allowed bool   `json:"allowed"`
+			Folder  string `json:"folder"`
+		} `json:"attachments"`
+		Chat struct {
+			MaxLength int `json:"max-length"`
+		} `json:"chat"`
+		Conversations struct {
+			CanCreate bool `json:"can-create"`
+		} `json:"conversations"`
+	} `json:"config"`
+}