3c7d77a456
In case of something goes wrong for parsing the message as JSON message, we should tell this the error handler.
103 lines
2.7 KiB
Go
103 lines
2.7 KiB
Go
// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
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// Copyright (C) 2018 Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package whatsappExt
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import (
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"encoding/json"
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"github.com/Rhymen/go-whatsapp"
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)
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type JSONMessage []json.RawMessage
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type JSONMessageType string
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const (
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MessageMsgInfo JSONMessageType = "MsgInfo"
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MessageMsg JSONMessageType = "Msg"
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MessagePresence JSONMessageType = "Presence"
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MessageStream JSONMessageType = "Stream"
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MessageConn JSONMessageType = "Conn"
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MessageProps JSONMessageType = "Props"
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MessageCmd JSONMessageType = "Cmd"
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MessageChat JSONMessageType = "Chat"
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)
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func (ext *ExtendedConn) AddHandler(handler whatsapp.Handler) {
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ext.Conn.AddHandler(handler)
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ext.handlers = append(ext.handlers, handler)
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}
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func (ext *ExtendedConn) HandleError(error) {}
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type UnhandledJSONMessageHandler interface {
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whatsapp.Handler
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HandleUnhandledJSONMessage(string)
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}
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type JSONParseErrorHandler interface {
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whatsapp.Handler
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HandleJSONParseError(error)
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}
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func (ext *ExtendedConn) jsonParseError(err error) {
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for _, handler := range ext.handlers {
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errorHandler, ok := handler.(JSONParseErrorHandler)
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if !ok {
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continue
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}
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errorHandler.HandleJSONParseError(err)
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}
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}
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func (ext *ExtendedConn) HandleJsonMessage(message string) {
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msg := JSONMessage{}
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err := json.Unmarshal([]byte(message), &msg)
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if err != nil || len(msg) < 2 {
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ext.jsonParseError(err)
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return
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}
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var msgType JSONMessageType
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json.Unmarshal(msg[0], &msgType)
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switch msgType {
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case MessagePresence:
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ext.handleMessagePresence(msg[1])
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case MessageStream:
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ext.handleMessageStream(msg[1:])
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case MessageConn:
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ext.handleMessageConn(msg[1])
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case MessageProps:
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ext.handleMessageProps(msg[1])
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case MessageMsgInfo, MessageMsg:
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ext.handleMessageMsgInfo(msgType, msg[1])
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case MessageCmd:
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ext.handleMessageCommand(msg[1])
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case MessageChat:
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ext.handleMessageChatUpdate(msg[1])
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default:
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for _, handler := range ext.handlers {
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ujmHandler, ok := handler.(UnhandledJSONMessageHandler)
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if !ok {
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continue
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}
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ujmHandler.HandleUnhandledJSONMessage(message)
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}
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}
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}
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