mautrix-whatsapp/database/user.go
2019-03-06 16:33:42 +01:00

170 lines
4.2 KiB
Go

// 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 database
import (
"database/sql"
"strings"
"github.com/Rhymen/go-whatsapp"
log "maunium.net/go/maulogger/v2"
"maunium.net/go/mautrix-whatsapp/types"
"maunium.net/go/mautrix-whatsapp/whatsapp-ext"
)
type UserQuery struct {
db *Database
log log.Logger
}
func (uq *UserQuery) CreateTable() error {
_, err := uq.db.Exec(`CREATE TABLE IF NOT EXISTS whatsapp_user (
mxid VARCHAR(255) PRIMARY KEY,
jid VARCHAR(255) UNIQUE,
management_room VARCHAR(255),
client_id VARCHAR(255),
client_token VARCHAR(255),
server_token VARCHAR(255),
enc_key bytea,
mac_key bytea
)`)
return err
}
func (uq *UserQuery) New() *User {
return &User{
db: uq.db,
log: uq.log,
}
}
func (uq *UserQuery) GetAll() (users []*User) {
rows, err := uq.db.Query("SELECT * FROM whatsapp_user")
if err != nil || rows == nil {
return nil
}
defer rows.Close()
for rows.Next() {
users = append(users, uq.New().Scan(rows))
}
return
}
func (uq *UserQuery) GetByMXID(userID types.MatrixUserID) *User {
row := uq.db.QueryRow("SELECT * FROM whatsapp_user WHERE mxid=$1", userID)
if row == nil {
return nil
}
return uq.New().Scan(row)
}
func (uq *UserQuery) GetByJID(userID types.WhatsAppID) *User {
row := uq.db.QueryRow("SELECT * FROM whatsapp_user WHERE jid=$1", stripSuffix(userID))
if row == nil {
return nil
}
return uq.New().Scan(row)
}
type User struct {
db *Database
log log.Logger
MXID types.MatrixUserID
JID types.WhatsAppID
ManagementRoom types.MatrixRoomID
Session *whatsapp.Session
}
func (user *User) Scan(row Scannable) *User {
var jid, clientID, clientToken, serverToken sql.NullString
var encKey, macKey []byte
err := row.Scan(&user.MXID, &jid, &user.ManagementRoom, &clientID, &clientToken, &serverToken, &encKey, &macKey)
if err != nil {
if err != sql.ErrNoRows {
user.log.Errorln("Database scan failed:", err)
}
return nil
}
if len(jid.String) > 0 && len(clientID.String) > 0 {
user.JID = jid.String + whatsappExt.NewUserSuffix
user.Session = &whatsapp.Session{
ClientId: clientID.String,
ClientToken: clientToken.String,
ServerToken: serverToken.String,
EncKey: encKey,
MacKey: macKey,
Wid: jid.String + whatsappExt.OldUserSuffix,
}
} else {
user.Session = nil
}
return user
}
func stripSuffix(jid types.WhatsAppID) string {
if len(jid) == 0 {
return jid
}
index := strings.IndexRune(jid, '@')
if index < 0 {
return jid
}
return jid[:index]
}
func (user *User) jidPtr() *string {
if len(user.JID) > 0 {
str := stripSuffix(user.JID)
return &str
}
return nil
}
func (user *User) sessionUnptr() (sess whatsapp.Session) {
if user.Session != nil {
sess = *user.Session
}
return
}
func (user *User) Insert() {
sess := user.sessionUnptr()
_, err := user.db.Exec("INSERT INTO whatsapp_user VALUES ($1, $2, $3, $4, $5, $6, $7, $8)", user.MXID, user.jidPtr(),
user.ManagementRoom,
sess.ClientId, sess.ClientToken, sess.ServerToken, sess.EncKey, sess.MacKey)
if err != nil {
user.log.Warnfln("Failed to insert %s: %v", user.MXID, err)
}
}
func (user *User) Update() {
sess := user.sessionUnptr()
_, err := user.db.Exec("UPDATE whatsapp_user SET jid=$1, management_room=$2, client_id=$3, client_token=$4, server_token=$5, enc_key=$6, mac_key=$7 WHERE mxid=$8",
user.jidPtr(), user.ManagementRoom,
sess.ClientId, sess.ClientToken, sess.ServerToken, sess.EncKey, sess.MacKey,
user.MXID)
if err != nil {
user.log.Warnfln("Failed to update %s: %v", user.MXID, err)
}
}