mautrix-signal/pkg/msgconv/msgconv.go

108 lines
3.0 KiB
Go

// mautrix-signal - A Matrix-signal puppeting bridge.
// Copyright (C) 2024 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 msgconv
import (
"context"
"github.com/google/uuid"
"maunium.net/go/mautrix/bridgev2"
"maunium.net/go/mautrix/bridgev2/networkid"
"maunium.net/go/mautrix/id"
"go.mau.fi/mautrix-signal/pkg/msgconv/matrixfmt"
"go.mau.fi/mautrix-signal/pkg/msgconv/signalfmt"
"go.mau.fi/mautrix-signal/pkg/signalid"
"go.mau.fi/mautrix-signal/pkg/signalmeow"
)
type contextKey int
const (
contextKeyPortal contextKey = iota
contextKeyClient
contextKeyIntent
)
type MessageConverter struct {
Bridge *bridgev2.Bridge
SignalFmtParams *signalfmt.FormatParams
MatrixFmtParams *matrixfmt.HTMLParser
MaxFileSize int64
LocationFormat string
}
func NewMessageConverter(br *bridgev2.Bridge, locationFormat string) *MessageConverter {
return &MessageConverter{
Bridge: br,
SignalFmtParams: &signalfmt.FormatParams{
GetUserInfo: func(ctx context.Context, uuid uuid.UUID) signalfmt.UserInfo {
ghost, err := br.GetGhostByID(ctx, signalid.MakeUserID(uuid))
if err != nil {
// TODO log?
return signalfmt.UserInfo{}
}
userInfo := signalfmt.UserInfo{
MXID: ghost.Intent.GetMXID(),
Name: ghost.Name,
}
userLogin := br.GetCachedUserLoginByID(networkid.UserLoginID(uuid.String()))
if userLogin != nil {
userInfo.MXID = userLogin.UserMXID
// TODO find matrix user displayname?
}
return userInfo
},
},
MatrixFmtParams: &matrixfmt.HTMLParser{
GetUUIDFromMXID: func(ctx context.Context, userID id.UserID) uuid.UUID {
parsed, ok := br.Matrix.ParseGhostMXID(userID)
if ok {
u, _ := uuid.Parse(string(parsed))
return u
}
user, _ := br.GetExistingUserByMXID(ctx, userID)
// TODO log errors?
if user != nil {
preferredLogin, _, _ := getPortal(ctx).FindPreferredLogin(ctx, user, true)
if preferredLogin != nil {
u, _ := uuid.Parse(string(preferredLogin.ID))
return u
}
}
return uuid.Nil
},
},
MaxFileSize: 50 * 1024 * 1024,
LocationFormat: locationFormat,
}
}
func getClient(ctx context.Context) *signalmeow.Client {
return ctx.Value(contextKeyClient).(*signalmeow.Client)
}
func getPortal(ctx context.Context) *bridgev2.Portal {
return ctx.Value(contextKeyPortal).(*bridgev2.Portal)
}
func getIntent(ctx context.Context) bridgev2.MatrixAPI {
return ctx.Value(contextKeyIntent).(bridgev2.MatrixAPI)
}