Use upstream whatsapp again (#809)

vendor/maunium.net/go/mautrix-whatsapp/whatsapp-ext/conn.go

@@ -0,0 +1,60 @@
+// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
+// Copyright (C) 2019 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 whatsappExt
+
+import (
+	"encoding/json"
+
+	"github.com/Rhymen/go-whatsapp"
+)
+
+type ConnInfo struct {
+	ProtocolVersion []int `json:"protoVersion"`
+	BinaryVersion   int   `json:"binVersion"`
+	Phone           struct {
+		WhatsAppVersion    string `json:"wa_version"`
+		MCC                string `json:"mcc"`
+		MNC                string `json:"mnc"`
+		OSVersion          string `json:"os_version"`
+		DeviceManufacturer string `json:"device_manufacturer"`
+		DeviceModel        string `json:"device_model"`
+		OSBuildNumber      string `json:"os_build_number"`
+	} `json:"phone"`
+	Features map[string]interface{} `json:"features"`
+	PushName string                 `json:"pushname"`
+}
+
+type ConnInfoHandler interface {
+	whatsapp.Handler
+	HandleConnInfo(ConnInfo)
+}
+
+func (ext *ExtendedConn) handleMessageConn(message []byte) {
+	var event ConnInfo
+	err := json.Unmarshal(message, &event)
+	if err != nil {
+		ext.jsonParseError(err)
+		return
+	}
+	for _, handler := range ext.handlers {
+		connInfoHandler, ok := handler.(ConnInfoHandler)
+		if !ok {
+			continue
+		}
+		connInfoHandler.HandleConnInfo(event)
+	}
+}