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Ignore state events with invalid signatures when joining rooms (#1407)

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* Use state from RespSendJoin post-check

* Don't create input events for invalid events

* Let's try this again

* Update gomatrixserverlib

* Update gomatrixserverlib to matrix-org/gomatrixserverlib@38f437f
This commit is contained in:
Neil Alexander 2020-09-07 16:54:51 +01:00 committed by GitHub
parent c992f4f1f4
commit 1602df8752
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
4 changed files with 14 additions and 12 deletions
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11
federationsender/internal/perform.go
View file

@ -185,20 +185,21 @@ func (r *FederationSenderInternalAPI) performJoinUsingServer(
// Check that the send_join response was valid.
joinCtx := perform.JoinContext(r.federation, r.keyRing)
if err = joinCtx.CheckSendJoinResponse(
respState, err := joinCtx.CheckSendJoinResponse(
ctx, event, serverName, respMakeJoin, respSendJoin,
); err != nil {
)
if err != nil {
return fmt.Errorf("joinCtx.CheckSendJoinResponse: %w", err)
}
// If we successfully performed a send_join above then the other
// server now thinks we're a part of the room. Send the newly
// returned state to the roomserver to update our local view.
respState := respSendJoin.ToRespState()
if err = roomserverAPI.SendEventWithState(
ctx, r.rsAPI,
&respState,
event.Headered(respMakeJoin.RoomVersion), nil,
respState,
event.Headered(respMakeJoin.RoomVersion),
nil,
); err != nil {
return fmt.Errorf("r.producer.SendEventWithState: %w", err)
}

9
federationsender/internal/perform/join.go
View file

@ -30,7 +30,7 @@ func (r joinContext) CheckSendJoinResponse(
server gomatrixserverlib.ServerName,
respMakeJoin gomatrixserverlib.RespMakeJoin,
respSendJoin gomatrixserverlib.RespSendJoin,
) error {
) (*gomatrixserverlib.RespState, error) {
// A list of events that we have retried, if they were not included in
// the auth events supplied in the send_join.
retries := map[string][]gomatrixserverlib.Event{}
@ -97,8 +97,9 @@ func (r joinContext) CheckSendJoinResponse(
// TODO: Can we expand Check here to return a list of missing auth
// events rather than failing one at a time?
if err := respSendJoin.Check(ctx, r.keyRing, event, missingAuth); err != nil {
return fmt.Errorf("respSendJoin: %w", err)
rs, err := respSendJoin.Check(ctx, r.keyRing, event, missingAuth)
if err != nil {
return nil, fmt.Errorf("respSendJoin: %w", err)
}
return nil
return rs, nil
}

2
go.mod
View file

@ -21,7 +21,7 @@ require (
github.com/matrix-org/go-http-js-libp2p v0.0.0-20200518170932-783164aeeda4
github.com/matrix-org/go-sqlite3-js v0.0.0-20200522092705-bc8506ccbcf3
github.com/matrix-org/gomatrix v0.0.0-20200827122206-7dd5e2a05bcd
github.com/matrix-org/gomatrixserverlib v0.0.0-20200907133812-66753e24bdff
github.com/matrix-org/gomatrixserverlib v0.0.0-20200907151926-38f437f2b2a6
github.com/matrix-org/naffka v0.0.0-20200901083833-bcdd62999a91
github.com/matrix-org/util v0.0.0-20200807132607-55161520e1d4
github.com/mattn/go-sqlite3 v1.14.2

4
go.sum
View file

@ -567,8 +567,8 @@ github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26 h1:Hr3zjRsq2bh
github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26/go.mod h1:3fxX6gUjWyI/2Bt7J1OLhpCzOfO/bB3AiX0cJtEKud0=
github.com/matrix-org/gomatrix v0.0.0-20200827122206-7dd5e2a05bcd h1:xVrqJK3xHREMNjwjljkAUaadalWc0rRbmVuQatzmgwg=
github.com/matrix-org/gomatrix v0.0.0-20200827122206-7dd5e2a05bcd/go.mod h1:/gBX06Kw0exX1HrwmoBibFA98yBk/jxKpGVeyQbff+s=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200907133812-66753e24bdff h1:XSQSvCTLnohO5q4g11ezrUwd4sxPbcs27SqWKg/UhA0=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200907133812-66753e24bdff/go.mod h1:JsAzE1Ll3+gDWS9JSUHPJiiyAksvOOnGWF2nXdg4ZzU=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200907151926-38f437f2b2a6 h1:43gla6bLt4opWY1mQkAasF/LUCipZl7x2d44TY0wf40=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200907151926-38f437f2b2a6/go.mod h1:JsAzE1Ll3+gDWS9JSUHPJiiyAksvOOnGWF2nXdg4ZzU=
github.com/matrix-org/naffka v0.0.0-20200901083833-bcdd62999a91 h1:HJ6U3S3ljJqNffYMcIeAncp5qT/i+ZMiJ2JC2F0aXP4=
github.com/matrix-org/naffka v0.0.0-20200901083833-bcdd62999a91/go.mod h1:sjyPyRxKM5uw1nD2cJ6O2OxI6GOqyVBfNXqKjBZTBZE=
github.com/matrix-org/util v0.0.0-20190711121626-527ce5ddefc7 h1:ntrLa/8xVzeSs8vHFHK25k0C+NV74sYMJnNSg5NoSRo=