Add JSONMessage parsing to whatsapp extensions

whatsapp-ext/msginfo.go

@@ -0,0 +1,63 @@
+// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
+// Copyright (C) 2018 Tulir Asokan
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package whatsapp_ext
+
+import (
+	"github.com/Rhymen/go-whatsapp"
+	"encoding/json"
+	"strings"
+)
+
+type MsgInfoCommand string
+
+const (
+	MsgInfoCommandAcknowledge MsgInfoCommand = "ack"
+)
+
+type MsgInfo struct {
+	Command         MsgInfoCommand `json:"cmd"`
+	ID              string         `json:"id"`
+	Acknowledgement int            `json:"ack"`
+	MessageFromJID  string         `json:"from"`
+	SenderJID       string         `json:"participant"`
+	ToJID           string         `json:"to"`
+	Timestamp       int64          `json:"t"`
+}
+
+type MsgInfoHandler interface {
+	whatsapp.Handler
+	HandleMsgInfo(MsgInfo)
+}
+
+func (ext *ExtendedConn) handleMessageMsgInfo(message []byte) {
+	var event MsgInfo
+	err := json.Unmarshal(message, &event)
+	if err != nil {
+		ext.jsonParseError(err)
+		return
+	}
+	event.MessageFromJID = strings.Replace(event.MessageFromJID, OldUserSuffix, NewUserSuffix, 1)
+	event.SenderJID = strings.Replace(event.SenderJID, OldUserSuffix, NewUserSuffix, 1)
+	event.ToJID = strings.Replace(event.ToJID, OldUserSuffix, NewUserSuffix, 1)
+	for _, handler := range ext.handlers {
+		msgInfoHandler, ok := handler.(MsgInfoHandler)
+		if !ok {
+			continue
+		}
+		msgInfoHandler.HandleMsgInfo(event)
+	}
+}