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// 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"
"fmt"
"io"
"io/ioutil"
"net/http"
"strings"
"github.com/Rhymen/go-whatsapp"
)
const (
OldUserSuffix = "@c.us"
NewUserSuffix = "@s.whatsapp.net"
)
type ExtendedConn struct {
*whatsapp.Conn
handlers []whatsapp.Handler
}
func ExtendConn(conn *whatsapp.Conn) *ExtendedConn {
ext := &ExtendedConn{
Conn: conn,
}
ext.Conn.AddHandler(ext)
return ext
}
type GroupInfo struct {
JID string `json:"jid"`
OwnerJID string `json:"owner"`
Name string `json:"subject"`
NameSetTime int64 `json:"subjectTime"`
NameSetBy string `json:"subjectOwner"`
Topic string `json:"desc"`
TopicID string `json:"descId"`
TopicSetAt int64 `json:"descTime"`
TopicSetBy string `json:"descOwner"`
GroupCreated int64 `json:"creation"`
Status int16 `json:"status"`
Participants []struct {
JID string `json:"id"`
IsAdmin bool `json:"isAdmin"`
IsSuperAdmin bool `json:"isSuperAdmin"`
} `json:"participants"`
}
func (ext *ExtendedConn) GetGroupMetaData(jid string) (*GroupInfo, error) {
data, err := ext.Conn.GetGroupMetaData(jid)
if err != nil {
return nil, fmt.Errorf("failed to get group metadata: %v", err)
}
content := <-data
info := &GroupInfo{}
err = json.Unmarshal([]byte(content), info)
if err != nil {
return info, fmt.Errorf("failed to unmarshal group metadata: %v", err)
}
for index, participant := range info.Participants {
info.Participants[index].JID = strings.Replace(participant.JID, OldUserSuffix, NewUserSuffix, 1)
}
info.NameSetBy = strings.Replace(info.NameSetBy, OldUserSuffix, NewUserSuffix, 1)
info.TopicSetBy = strings.Replace(info.TopicSetBy, OldUserSuffix, NewUserSuffix, 1)
return info, nil
}
type ProfilePicInfo struct {
URL string `json:"eurl"`
Tag string `json:"tag"`
Status int16 `json:"status"`
}
func (ppi *ProfilePicInfo) Download() (io.ReadCloser, error) {
resp, err := http.Get(ppi.URL)
if err != nil {
return nil, err
}
return resp.Body, nil
}
func (ppi *ProfilePicInfo) DownloadBytes() ([]byte, error) {
body, err := ppi.Download()
if err != nil {
return nil, err
}
defer body.Close()
data, err := ioutil.ReadAll(body)
return data, err
}
func (ext *ExtendedConn) GetProfilePicThumb(jid string) (*ProfilePicInfo, error) {
data, err := ext.Conn.GetProfilePicThumb(jid)
if err != nil {
return nil, fmt.Errorf("failed to get avatar: %v", err)
}
content := <-data
info := &ProfilePicInfo{}
err = json.Unmarshal([]byte(content), info)
if err != nil {
return info, fmt.Errorf("failed to unmarshal avatar info: %v", err)
}
return info, nil
}
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