From 137b58a8a9d3f93871f986e44b769db61c755b64 Mon Sep 17 00:00:00 2001 From: Kegan Dougal Date: Tue, 17 Mar 2020 15:22:46 +0000 Subject: [PATCH] bugfix: Fix a bug which caused failures to join rooms over federation The cause of this was the semantics of `/send_join`'s `auth_chain` response. Previously, we would only send back the auth chain *for the join event* and not the entire room state. However, we would then try to check that the room state is valid, and then be missing auth events. Now, we send back the entire auth chain for all room state in `/send_join`. The spec needs to be clarified that this is what the chain should be. --- go.sum | 3 +++ roomserver/query/query.go | 10 +++++++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/go.sum b/go.sum index a02e29542..983bf42e2 100644 --- a/go.sum +++ b/go.sum @@ -30,6 +30,7 @@ github.com/btcsuite/goleveldb v0.0.0-20160330041536-7834afc9e8cd/go.mod h1:F+uVa github.com/btcsuite/snappy-go v0.0.0-20151229074030-0bdef8d06723/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc= github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792/go.mod h1:ghJtEyQwv5/p4Mg4C0fgbePVuGr935/5ddU9Z3TmDRY= github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs= +github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko= github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc= github.com/cespare/xxhash/v2 v2.1.0/go.mod h1:dgIUBU3pDso/gPgZ1osOZ0iQf77oPR28Tjxl5dIMyVM= github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY= @@ -453,6 +454,7 @@ go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU= go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw= go.uber.org/atomic v1.3.0 h1:vs7fgriifsPbGdK3bNuMWapNn3qnZhCRXc19NRdq010= go.uber.org/atomic v1.3.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE= +go.uber.org/atomic v1.4.0 h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU= go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE= go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0= go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= @@ -491,6 +493,7 @@ golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20190909003024-a7b16738d86b h1:XfVGCX+0T4WOStkaOsJRllbsiImhB2jgVBGc9L0lPGc= golang.org/x/net v0.0.0-20190909003024-a7b16738d86b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= diff --git a/roomserver/query/query.go b/roomserver/query/query.go index 52b678ac3..a73ce699d 100644 --- a/roomserver/query/query.go +++ b/roomserver/query/query.go @@ -677,7 +677,15 @@ func (r *RoomserverQueryAPI) QueryStateAndAuthChain( return err } - authEvents, err := getAuthChain(ctx, r.DB, request.AuthEventIDs) + // add the auth event IDs for the current state events too + var authEventIDs []string + authEventIDs = append(authEventIDs, request.AuthEventIDs...) + for _, se := range stateEvents { + authEventIDs = append(authEventIDs, se.AuthEventIDs()...) + } + authEventIDs = util.UniqueStrings(authEventIDs) // de-dupe + + authEvents, err := getAuthChain(ctx, r.DB, authEventIDs) if err != nil { return err }