Add Nextcloud Talk support (#1167)

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

1 files changed, 132 insertions, 0 deletions

diff --git a/vendor/gomod.garykim.dev/nc-talk/user/user.go b/vendor/gomod.garykim.dev/nc-talk/user/user.go
new file mode 100644
index 00000000..c4411ba2
--- /dev/null
+++ b/vendor/gomod.garykim.dev/nc-talk/user/user.go
@@ -0,0 +1,132 @@
+// 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 user
+
+import (
+	"encoding/xml"
+	"reflect"
+
+	"github.com/monaco-io/request"
+)
+
+const (
+	ocsCapabilitiesEndpoint = "/ocs/v2.php/cloud/capabilities"
+)
+
+// TalkUser represents a user of Nextcloud Talk
+type TalkUser struct {
+	User         string
+	Pass         string
+	NextcloudURL string
+	capabilities *Capabilities
+}
+
+// Capabilities describes the capabilities that the Nextcloud Talk instance is capable of. Visit https://nextcloud-talk.readthedocs.io/en/latest/capabilities/ for more info.
+type Capabilities struct {
+	Audio                  bool `ocscapability:"audio"`
+	Video                  bool `ocscapability:"video"`
+	Chat                   bool `ocscapability:"chat"`
+	GuestSignaling         bool `ocscapability:"guest-signaling"`
+	EmptyGroupRoom         bool `ocscapability:"empty-group-room"`
+	GuestDisplayNames      bool `ocscapability:"guest-display-names"`
+	MultiRoomUsers         bool `ocscapability:"multi-room-users"`
+	ChatV2                 bool `ocscapability:"chat-v2"`
+	Favorites              bool `ocscapability:"favorites"`
+	LastRoomActivity       bool `ocscapability:"last-room-activity"`
+	NoPing                 bool `ocscapability:"no-ping"`
+	SystemMessages         bool `ocscapability:"system-messages"`
+	MentionFlag            bool `ocscapability:"mention-flag"`
+	InCallFlags            bool `ocscapability:"in-call-flags"`
+	InviteByMail           bool `ocscapability:"invite-by-mail"`
+	NotificationLevels     bool `ocscapability:"notification-levels"`
+	InviteGroupsAndMails   bool `ocscapability:"invite-groups-and-mails"`
+	LockedOneToOneRooms    bool `ocscapability:"locked-one-to-one-rooms"`
+	ReadOnlyRooms          bool `ocscapability:"read-only-rooms"`
+	ChatReadMarker         bool `ocscapability:"chat-read-marker"`
+	WebinaryLobby          bool `ocscapability:"webinary-lobby"`
+	StartCallFlag          bool `ocscapability:"start-call-flag"`
+	ChatReplies            bool `ocscapability:"chat-replies"`
+	CirclesSupport         bool `ocscapability:"circles-support"`
+	AttachmentsAllowed     bool `ocscapability:"config => attachments => allowed"`
+	AttachmentsFolder      bool `ocscapability:"config => attachments => folder"`
+	ConversationsCanCreate bool `ocscapability:"config => conversations => can-create"`
+	ForceMute              bool `ocscapability:"force-mute"`
+	ConversationV2         bool `ocscapability:"conversation-v2"`
+	ChatReferenceID        bool `ocscapability:"chat-reference-id"`
+}
+
+type capabilitiesRequest struct {
+	XMLName      xml.Name `xml:"ocs"`
+	Capabilities []string `xml:"ocs>data>capabilities>spreed>features>element"`
+}
+
+// RequestClient returns a monaco-io that is preconfigured to make OCS API calls
+func (t *TalkUser) RequestClient(client request.Client) *request.Client {
+	if client.Header == nil {
+		client.Header = make(map[string]string)
+	}
+	if client.Header["OCS-APIRequest"] == "" {
+		client.Header["OCS-APIRequest"] = "true"
+	}
+	if client.Header["Accept"] == "" {
+		client.Header["Accept"] = "application/json"
+	}
+	client.BasicAuth = request.BasicAuth{
+		Username: t.User,
+		Password: t.Pass,
+	}
+	return &client
+}
+
+// Capabilities returns an instance of Capabilities that describes what the Nextcloud Talk instance supports
+func (t *TalkUser) Capabilities() (*Capabilities, error) {
+	if t.capabilities != nil {
+		return t.capabilities, nil
+	}
+
+	client := t.RequestClient(request.Client{
+		URL: ocsCapabilitiesEndpoint,
+		Header: map[string]string{
+			"Accept": "application/xml",
+		},
+	})
+	res, err := client.Do()
+	if err != nil {
+		return nil, err
+	}
+
+	capabilities := &capabilitiesRequest{}
+	err = xml.Unmarshal(res.Data, capabilities)
+	if err != nil {
+		return nil, err
+	}
+
+	tr := &Capabilities{}
+
+	c := reflect.ValueOf(tr)
+	for i := 0; i < c.NumField(); i++ {
+		field := c.Field(i)
+		tag := field.Type().Field(0).Tag.Get("ocscapability")
+
+		for _, capability := range capabilities.Capabilities {
+			if capability == tag && field.CanSet() {
+				field.SetBool(true)
+			}
+		}
+	}
+
+	t.capabilities = tr
+	return tr, nil
+}