93 lines
2.4 KiB
Go
93 lines
2.4 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 whatsapp_ext
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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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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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)
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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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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.handleMessageProps(msg[1])
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case MessageProps:
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ext.handleMessageProps(msg[1])
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case MessageMsgInfo:
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ext.handleMessageMsgInfo(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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