Add avatars, room topics and message deduplication

whatsapp-ext/whatsapp.go

@@ -0,0 +1,116 @@
+// 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 whatsapp_ext
+
+import (
+	"fmt"
+	"encoding/json"
+	"github.com/Rhymen/go-whatsapp"
+	"net/http"
+	"io/ioutil"
+	"io"
+	"strings"
+)
+
+type ExtendedConn struct {
+	*whatsapp.Conn
+}
+
+func ExtendConn(conn *whatsapp.Conn) *ExtendedConn {
+	return &ExtendedConn{
+		Conn: conn,
+	}
+}
+
+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"`
+
+	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
+	fmt.Println("GROUP METADATA", content)
+	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, "@c.us", "@s.whatsapp.net", 1)
+	}
+
+	return info, nil
+}
+
+type ProfilePicInfo struct {
+	URL string `json:"eurl"`
+	Tag string `json:"tag"`
+}
+
+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
+}