encryption: add ability to control rotation settings

Signed-off-by: Sumner Evans <sumner@beeper.com>
This commit is contained in:
Sumner Evans 2022-06-21 11:57:08 -06:00
parent 90635af114
commit e8c86d43d0
No known key found for this signature in database
GPG Key ID: 8904527AB50022FD
7 changed files with 35 additions and 6 deletions

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@ -379,7 +379,7 @@ func fnCreate(ce *WrappedCommandEvent) {
portal.Name = roomNameEvent.Name
portal.Encrypted = encryptionEvent.Algorithm == id.AlgorithmMegolmV1
if !portal.Encrypted && ce.Bridge.Config.Bridge.Encryption.Default {
_, err = portal.MainIntent().SendStateEvent(portal.MXID, event.StateEncryption, "", &event.EncryptionEventContent{Algorithm: id.AlgorithmMegolmV1})
_, err = portal.MainIntent().SendStateEvent(portal.MXID, event.StateEncryption, "", portal.GetEncryptionEventContent())
if err != nil {
portal.log.Warnln("Failed to enable encryption in room:", err)
if errors.Is(err, mautrix.MForbidden) {

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@ -100,6 +100,9 @@ func DoUpgrade(helper *up.Helper) {
helper.Copy(up.Bool, "bridge", "encryption", "key_sharing", "allow")
helper.Copy(up.Bool, "bridge", "encryption", "key_sharing", "require_cross_signing")
helper.Copy(up.Bool, "bridge", "encryption", "key_sharing", "require_verification")
helper.Copy(up.Bool, "bridge", "encryption", "rotation", "enable_custom")
helper.Copy(up.Int, "bridge", "encryption", "rotation", "milliseconds")
helper.Copy(up.Int, "bridge", "encryption", "rotation", "messages")
if prefix, ok := helper.Get(up.Str, "appservice", "provisioning", "prefix"); ok {
helper.Set(up.Str, strings.TrimSuffix(prefix, "/v1"), "bridge", "provisioning", "prefix")
} else {

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@ -318,6 +318,23 @@ bridge:
# Require devices to be verified by the bridge?
# Verification by the bridge is not yet implemented.
require_verification: true
# Options for Megolm room key rotation. These options allow you to
# configure the m.room.encryption event content. See:
# https://spec.matrix.org/v1.3/client-server-api/#mroomencryption for
# more information about that event.
rotation:
# Enable custom Megolm room key rotation settings. Note that these
# settings will only apply to rooms created after this option is
# set.
enable_custom: false
# The maximum number of milliseconds a session should be used
# before changing it. The Matrix spec recommends 604800000 (a week)
# as the default.
milliseconds: 604800000
# The maximum number of messages that should be sent with a given a
# session before changing it. The Matrix spec recommends 100 as the
# default.
messages: 100
# Settings for provisioning API
provisioning:

2
go.mod
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@ -15,7 +15,7 @@ require (
golang.org/x/net v0.0.0-20220513224357-95641704303c
google.golang.org/protobuf v1.28.0
maunium.net/go/maulogger/v2 v2.3.2
maunium.net/go/mautrix v0.11.1-0.20220618100747-0cefca15f223
maunium.net/go/mautrix v0.11.1-0.20220621174128-b64dc2427d45
)
require (

4
go.sum
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@ -107,5 +107,5 @@ maunium.net/go/mauflag v1.0.0 h1:YiaRc0tEI3toYtJMRIfjP+jklH45uDHtT80nUamyD4M=
maunium.net/go/mauflag v1.0.0/go.mod h1:nLivPOpTpHnpzEh8jEdSL9UqO9+/KBJFmNRlwKfkPeA=
maunium.net/go/maulogger/v2 v2.3.2 h1:1XmIYmMd3PoQfp9J+PaHhpt80zpfmMqaShzUTC7FwY0=
maunium.net/go/maulogger/v2 v2.3.2/go.mod h1:TYWy7wKwz/tIXTpsx8G3mZseIRiC5DoMxSZazOHy68A=
maunium.net/go/mautrix v0.11.1-0.20220618100747-0cefca15f223 h1:7eHRIEAPbVDebKzYEppC64g4e/dlfqcr8SzsV+Fxpko=
maunium.net/go/mautrix v0.11.1-0.20220618100747-0cefca15f223/go.mod h1:CiKpMhAx5QZFHK03jpWb0iKI3sGU8x6+LfsOjDrcO8I=
maunium.net/go/mautrix v0.11.1-0.20220621174128-b64dc2427d45 h1:3ld9X4COzaeGrfAAUYD5f4is0siPGzodTFtX/+o8Q50=
maunium.net/go/mautrix v0.11.1-0.20220621174128-b64dc2427d45/go.mod h1:CiKpMhAx5QZFHK03jpWb0iKI3sGU8x6+LfsOjDrcO8I=

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@ -80,7 +80,7 @@ func (br *WABridge) createPrivatePortalFromInvite(roomID id.RoomID, inviter *Use
if err != nil {
portal.log.Warnln("Failed to join as bridge bot to enable e2be:", err)
}
_, err = intent.SendStateEvent(roomID, event.StateEncryption, "", &event.EncryptionEventContent{Algorithm: id.AlgorithmMegolmV1})
_, err = intent.SendStateEvent(roomID, event.StateEncryption, "", portal.GetEncryptionEventContent())
if err != nil {
portal.log.Warnln("Failed to enable e2be:", err)
}

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@ -1251,6 +1251,15 @@ func (portal *Portal) UpdateBridgeInfo() {
}
}
func (portal *Portal) GetEncryptionEventContent() (evt *event.EncryptionEventContent) {
evt = &event.EncryptionEventContent{Algorithm: id.AlgorithmMegolmV1}
if rot := portal.bridge.Config.Bridge.Encryption.Rotation; rot.EnableCustom {
evt.RotationPeriodMillis = rot.Milliseconds
evt.RotationPeriodMessages = rot.Messages
}
return
}
func (portal *Portal) CreateMatrixRoom(user *User, groupInfo *types.GroupInfo, isFullInfo, backfill bool) error {
portal.roomCreateLock.Lock()
defer portal.roomCreateLock.Unlock()
@ -1358,7 +1367,7 @@ func (portal *Portal) CreateMatrixRoom(user *User, groupInfo *types.GroupInfo, i
initialState = append(initialState, &event.Event{
Type: event.StateEncryption,
Content: event.Content{
Parsed: event.EncryptionEventContent{Algorithm: id.AlgorithmMegolmV1},
Parsed: portal.GetEncryptionEventContent(),
},
})
portal.Encrypted = true