mautrix-whatsapp/whatsapp-ext/stream.go

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// 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 whatsappExt
import (
"encoding/json"
"github.com/Rhymen/go-whatsapp"
)
type StreamType string
const (
StreamUpdate = "update"
StreamSleep = "asleep"
)
type StreamEvent struct {
Type StreamType
Boolean bool
Version string
}
type StreamEventHandler interface {
whatsapp.Handler
HandleStreamEvent(StreamEvent)
}
func (ext *ExtendedConn) handleMessageStream(message []json.RawMessage) {
var event StreamEvent
err := json.Unmarshal(message[0], &event.Type)
if err != nil {
ext.jsonParseError(err)
return
}
if event.Type == StreamUpdate && len(message) > 4 {
json.Unmarshal(message[1], event.Boolean)
json.Unmarshal(message[2], event.Version)
}
for _, handler := range ext.handlers {
streamHandler, ok := handler.(StreamEventHandler)
if !ok {
continue
}
go streamHandler.HandleStreamEvent(event)
}
}