Federation for v3/v4 rooms (#954)

* Update gomatrixserverlib

* Default to room version 4

* Update gomatrixserverlib

* Limit prev_events and auth_events

* Fix auth_events, prev_events

* Fix linter issues

* Update gomatrixserverlib

* Fix getState

* Update sytest-whitelist

* Squashed commit of the following:

commit 067b875063
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Fri Apr 3 14:29:06 2020 +0100

    Invites v2 endpoint (#952)

    * Start converting v1 invite endpoint to v2

    * Update gomatrixserverlib

    * Early federationsender code for sending invites

    * Sending invites sorta happens now

    * Populate invite request with stripped state

    * Remodel a bit, don't reflect received invites

    * Handle invite_room_state

    * Handle room versions a bit better

    * Update gomatrixserverlib

    * Tweak order in destinationQueue.next

    * Revert check in processMessage

    * Tweak federation sender destination queue code a bit

    * Add comments

commit 955244c092
Author: Ben B <benne@klimlive.de>
Date:   Fri Apr 3 12:40:50 2020 +0200

    use custom http client instead of the http DefaultClient (#823)

    This commit replaces the default client from the http lib with a custom one.
    The previously used default client doesn't come with a timeout. This could cause
    unwanted locks.
    That solution chosen here creates a http client in the base component dendrite
    with a constant timeout of 30 seconds. If it should be necessary to overwrite
    this, we could include the timeout in the dendrite configuration.
    Here it would be a good idea to extend the type "Address" by a timeout and
    create an http client for each service.

    Closes #820

    Signed-off-by: Benedikt Bongartz <benne@klimlive.de>

    Co-authored-by: Kegsay <kegan@matrix.org>

* Update sytest-whitelist, sytest-blacklist

* Update go.mod/go.sum

* Add some error wrapping for debug

* Add a NOTSPEC to common/events.go

* Perform state resolution at send_join

* Set default room version to v2 again

* Tweak GetCapabilities

* Add comments to ResolveConflictsAdhoc

* Update sytest-blacklist

* go mod tidy

* Update sytest-whitelist, sytest-blacklist

* Update versions

* Updates from review comments

* Update sytest-blacklist, sytest-whitelist

* Check room versions compatible at make_join, add some comments, update gomatrixserverlib, other tweaks

* Set default room version back to v2

* Update gomatrixserverlib, sytest-whitelist
This commit is contained in:
Neil Alexander 2020-04-09 15:46:06 +01:00 committed by GitHub
parent 067b875063
commit dacee648f7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
14 changed files with 235 additions and 55 deletions

View File

@ -29,7 +29,7 @@ func GetCapabilities(
req *http.Request, queryAPI roomserverAPI.RoomserverQueryAPI,
) util.JSONResponse {
roomVersionsQueryReq := roomserverAPI.QueryRoomVersionCapabilitiesRequest{}
var roomVersionsQueryRes roomserverAPI.QueryRoomVersionCapabilitiesResponse
roomVersionsQueryRes := roomserverAPI.QueryRoomVersionCapabilitiesResponse{}
if err := queryAPI.QueryRoomVersionCapabilities(
req.Context(),
&roomVersionsQueryReq,

View File

@ -242,6 +242,9 @@ func (r joinRoomReq) joinRoomUsingServers(
queryRes := roomserverAPI.QueryLatestEventsAndStateResponse{}
event, err := common.BuildEvent(r.req.Context(), &eb, r.cfg, r.evTime, r.queryAPI, &queryRes)
if err == nil {
// If we have successfully built an event at this point then we can
// assert that the room is a local room, as BuildEvent was able to
// add prev_events etc successfully.
if _, err = r.producer.SendEvents(
r.req.Context(),
[]gomatrixserverlib.HeaderedEvent{
@ -260,6 +263,10 @@ func (r joinRoomReq) joinRoomUsingServers(
}{roomID},
}
}
// Otherwise, if we've reached here, then we haven't been able to populate
// prev_events etc for the room, therefore the room is probably federated.
// TODO: This needs to be re-thought, as in the case of an invite, the room
// will exist in the database in roomserver_rooms but won't have any state
// events, therefore this below check fails.
@ -323,14 +330,14 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
respMakeJoin, err := r.federation.MakeJoin(r.req.Context(), server, roomID, r.userID, supportedVersions)
if err != nil {
// TODO: Check if the user was not allowed to join the room.
return nil, err
return nil, fmt.Errorf("r.federation.MakeJoin: %w", err)
}
// Set all the fields to be what they should be, this should be a no-op
// but it's possible that the remote server returned us something "odd"
err = r.writeToBuilder(&respMakeJoin.JoinEvent, roomID)
if err != nil {
return nil, err
return nil, fmt.Errorf("r.writeToBuilder: %w", err)
}
if respMakeJoin.RoomVersion == "" {
@ -350,18 +357,16 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
r.cfg.Matrix.PrivateKey, respMakeJoin.RoomVersion,
)
if err != nil {
util.GetLogger(r.req.Context()).WithError(err).Error("respMakeJoin.JoinEvent.Build failed")
res := jsonerror.InternalServerError()
return &res, nil
return nil, fmt.Errorf("respMakeJoin.JoinEvent.Build: %w", err)
}
respSendJoin, err := r.federation.SendJoin(r.req.Context(), server, event, respMakeJoin.RoomVersion)
if err != nil {
return nil, err
return nil, fmt.Errorf("r.federation.SendJoin: %w", err)
}
if err = respSendJoin.Check(r.req.Context(), r.keyRing, event); err != nil {
return nil, err
return nil, fmt.Errorf("respSendJoin: %w", err)
}
if err = r.producer.SendEventWithState(
@ -369,9 +374,7 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
gomatrixserverlib.RespState(respSendJoin.RespState),
event.Headered(respMakeJoin.RoomVersion),
); err != nil {
util.GetLogger(r.req.Context()).WithError(err).Error("gomatrixserverlib.RespState failed")
res := jsonerror.InternalServerError()
return &res, nil
return nil, fmt.Errorf("r.producer.SendEventWithState: %w", err)
}
return &util.JSONResponse{

View File

@ -17,6 +17,7 @@ package common
import (
"context"
"errors"
"fmt"
"time"
"github.com/matrix-org/dendrite/common/config"
@ -46,6 +47,7 @@ func BuildEvent(
err := AddPrevEventsToEvent(ctx, builder, queryAPI, queryRes)
if err != nil {
// This can pass through a ErrRoomNoExists to the caller
return nil, err
}
@ -68,7 +70,7 @@ func AddPrevEventsToEvent(
) error {
eventsNeeded, err := gomatrixserverlib.StateNeededForEventBuilder(builder)
if err != nil {
return err
return fmt.Errorf("gomatrixserverlib.StateNeededForEventBuilder: %w", err)
}
// Ask the roomserver for information about this room
@ -77,7 +79,7 @@ func AddPrevEventsToEvent(
StateToFetch: eventsNeeded.Tuples(),
}
if err = queryAPI.QueryLatestEventsAndState(ctx, &queryReq, queryRes); err != nil {
return err
return fmt.Errorf("queryAPI.QueryLatestEventsAndState: %w", err)
}
if !queryRes.RoomExists {
@ -86,7 +88,7 @@ func AddPrevEventsToEvent(
eventFormat, err := queryRes.RoomVersion.EventFormat()
if err != nil {
return err
return fmt.Errorf("queryRes.RoomVersion.EventFormat: %w", err)
}
builder.Depth = queryRes.Depth
@ -96,26 +98,26 @@ func AddPrevEventsToEvent(
for i := range queryRes.StateEvents {
err = authEvents.AddEvent(&queryRes.StateEvents[i].Event)
if err != nil {
return err
return fmt.Errorf("authEvents.AddEvent: %w", err)
}
}
refs, err := eventsNeeded.AuthEventReferences(&authEvents)
if err != nil {
return err
return fmt.Errorf("eventsNeeded.AuthEventReferences: %w", err)
}
truncAuth, truncPrev := truncateAuthAndPrevEvents(refs, queryRes.LatestEvents)
switch eventFormat {
case gomatrixserverlib.EventFormatV1:
builder.AuthEvents = refs
builder.PrevEvents = queryRes.LatestEvents
builder.AuthEvents = truncAuth
builder.PrevEvents = truncPrev
case gomatrixserverlib.EventFormatV2:
v2AuthRefs := []string{}
v2PrevRefs := []string{}
for _, ref := range refs {
v2AuthRefs, v2PrevRefs := []string{}, []string{}
for _, ref := range truncAuth {
v2AuthRefs = append(v2AuthRefs, ref.EventID)
}
for _, ref := range queryRes.LatestEvents {
for _, ref := range truncPrev {
v2PrevRefs = append(v2PrevRefs, ref.EventID)
}
builder.AuthEvents = v2AuthRefs
@ -124,3 +126,21 @@ func AddPrevEventsToEvent(
return nil
}
// truncateAuthAndPrevEvents limits the number of events we add into
// an event as prev_events or auth_events.
// NOTSPEC: The limits here feel a bit arbitrary but they are currently
// here because of https://github.com/matrix-org/matrix-doc/issues/2307
// and because Synapse will just drop events that don't comply.
func truncateAuthAndPrevEvents(auth, prev []gomatrixserverlib.EventReference) (
truncAuth, truncPrev []gomatrixserverlib.EventReference,
) {
truncAuth, truncPrev = auth, prev
if len(truncAuth) > 10 {
truncAuth = truncAuth[:10]
}
if len(truncPrev) > 20 {
truncPrev = truncPrev[:20]
}
return
}

View File

@ -15,6 +15,7 @@
package routing
import (
"fmt"
"net/http"
"time"
@ -34,6 +35,7 @@ func MakeJoin(
cfg *config.Dendrite,
query api.RoomserverQueryAPI,
roomID, userID string,
remoteVersions []gomatrixserverlib.RoomVersion,
) util.JSONResponse {
verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
verRes := api.QueryRoomVersionForRoomResponse{}
@ -44,6 +46,27 @@ func MakeJoin(
}
}
// Check that the room that the remote side is trying to join is actually
// one of the room versions that they listed in their supported ?ver= in
// the make_join URL.
// https://matrix.org/docs/spec/server_server/r0.1.3#get-matrix-federation-v1-make-join-roomid-userid
remoteSupportsVersion := false
for _, v := range remoteVersions {
if v == verRes.RoomVersion {
remoteSupportsVersion = true
break
}
}
// If it isn't, stop trying to join the room.
if !remoteSupportsVersion {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.UnsupportedRoomVersion(
fmt.Sprintf("Joining server does not support room version %s", verRes.RoomVersion),
),
}
}
_, domain, err := gomatrixserverlib.SplitID('@', userID)
if err != nil {
return util.JSONResponse{
@ -140,7 +163,12 @@ func SendJoin(
if event.RoomID() != roomID {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.BadJSON("The room ID in the request path must match the room ID in the join event JSON"),
JSON: jsonerror.BadJSON(
fmt.Sprintf(
"The room ID in the request path (%q) must match the room ID in the join event JSON (%q)",
roomID, event.RoomID(),
),
),
}
}
@ -148,7 +176,12 @@ func SendJoin(
if event.EventID() != eventID {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.BadJSON("The event ID in the request path must match the event ID in the join event JSON"),
JSON: jsonerror.BadJSON(
fmt.Sprintf(
"The event ID in the request path (%q) must match the event ID in the join event JSON (%q)",
eventID, event.EventID(),
),
),
}
}
@ -186,6 +219,7 @@ func SendJoin(
PrevEventIDs: event.PrevEventIDs(),
AuthEventIDs: event.AuthEventIDs(),
RoomID: roomID,
ResolveState: true,
}, &stateAndAuthChainResponse)
if err != nil {
util.GetLogger(httpReq.Context()).WithError(err).Error("query.QueryStateAndAuthChain failed")

View File

@ -198,7 +198,7 @@ func Setup(
},
)).Methods(http.MethodGet)
v1fedmux.Handle("/make_join/{roomID}/{userID}", common.MakeFedAPI(
v1fedmux.Handle("/make_join/{roomID}/{eventID}", common.MakeFedAPI(
"federation_make_join", cfg.Matrix.ServerName, keys,
func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
vars, err := common.URLDecodeMapValues(mux.Vars(httpReq))
@ -206,14 +206,28 @@ func Setup(
return util.ErrorResponse(err)
}
roomID := vars["roomID"]
userID := vars["userID"]
eventID := vars["eventID"]
queryVars := httpReq.URL.Query()
remoteVersions := []gomatrixserverlib.RoomVersion{}
if vers, ok := queryVars["ver"]; ok {
// The remote side supplied a ?=ver so use that to build up the list
// of supported room versions
for _, v := range vers {
remoteVersions = append(remoteVersions, gomatrixserverlib.RoomVersion(v))
}
} else {
// The remote side didn't supply a ?ver= so just assume that they only
// support room version 1, as per the spec
// https://matrix.org/docs/spec/server_server/r0.1.3#get-matrix-federation-v1-make-join-roomid-userid
remoteVersions = append(remoteVersions, gomatrixserverlib.RoomVersionV1)
}
return MakeJoin(
httpReq, request, cfg, query, roomID, userID,
httpReq, request, cfg, query, roomID, eventID, remoteVersions,
)
},
)).Methods(http.MethodGet)
v2fedmux.Handle("/send_join/{roomID}/{userID}", common.MakeFedAPI(
v2fedmux.Handle("/send_join/{roomID}/{eventID}", common.MakeFedAPI(
"federation_send_join", cfg.Matrix.ServerName, keys,
func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
vars, err := common.URLDecodeMapValues(mux.Vars(httpReq))
@ -221,14 +235,14 @@ func Setup(
return util.ErrorResponse(err)
}
roomID := vars["roomID"]
userID := vars["userID"]
eventID := vars["eventID"]
return SendJoin(
httpReq, request, cfg, query, producer, keys, roomID, userID,
httpReq, request, cfg, query, producer, keys, roomID, eventID,
)
},
)).Methods(http.MethodPut)
v1fedmux.Handle("/make_leave/{roomID}/{userID}", common.MakeFedAPI(
v1fedmux.Handle("/make_leave/{roomID}/{eventID}", common.MakeFedAPI(
"federation_make_leave", cfg.Matrix.ServerName, keys,
func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
vars, err := common.URLDecodeMapValues(mux.Vars(httpReq))
@ -236,14 +250,14 @@ func Setup(
return util.ErrorResponse(err)
}
roomID := vars["roomID"]
userID := vars["userID"]
eventID := vars["eventID"]
return MakeLeave(
httpReq, request, cfg, query, roomID, userID,
httpReq, request, cfg, query, roomID, eventID,
)
},
)).Methods(http.MethodGet)
v2fedmux.Handle("/send_leave/{roomID}/{userID}", common.MakeFedAPI(
v2fedmux.Handle("/send_leave/{roomID}/{eventID}", common.MakeFedAPI(
"federation_send_leave", cfg.Matrix.ServerName, keys,
func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
vars, err := common.URLDecodeMapValues(mux.Vars(httpReq))
@ -251,9 +265,9 @@ func Setup(
return util.ErrorResponse(err)
}
roomID := vars["roomID"]
userID := vars["userID"]
eventID := vars["eventID"]
return SendLeave(
httpReq, request, cfg, producer, keys, roomID, userID,
httpReq, request, cfg, producer, keys, roomID, eventID,
)
},
)).Methods(http.MethodPut)

View File

@ -107,7 +107,6 @@ func getState(
return nil, &util.JSONResponse{Code: http.StatusNotFound, JSON: nil}
}
prevEventIDs := getIDsFromEventRef(event.PrevEvents())
authEventIDs := getIDsFromEventRef(event.AuthEvents())
var response api.QueryStateAndAuthChainResponse
@ -115,7 +114,7 @@ func getState(
ctx,
&api.QueryStateAndAuthChainRequest{
RoomID: roomID,
PrevEventIDs: prevEventIDs,
PrevEventIDs: []string{eventID},
AuthEventIDs: authEventIDs,
},
&response,

6
go.mod
View File

@ -9,7 +9,7 @@ require (
github.com/matrix-org/go-http-js-libp2p v0.0.0-20200318135427-31631a9ef51f
github.com/matrix-org/go-sqlite3-js v0.0.0-20200325174927-327088cdef10
github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26
github.com/matrix-org/gomatrixserverlib v0.0.0-20200402141635-4a6e1ade46f8
github.com/matrix-org/gomatrixserverlib v0.0.0-20200409140603-8b9a51fe9b89
github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1
github.com/matrix-org/util v0.0.0-20190711121626-527ce5ddefc7
github.com/mattn/go-sqlite3 v2.0.2+incompatible
@ -23,9 +23,9 @@ require (
github.com/tidwall/pretty v1.0.1 // indirect
github.com/uber/jaeger-client-go v2.22.1+incompatible
github.com/uber/jaeger-lib v2.2.0+incompatible
go.uber.org/atomic v1.6.0 // indirect
go.uber.org/atomic v1.6.0
golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d
golang.org/x/net v0.0.0-20190909003024-a7b16738d86b // indirect
golang.org/x/tools v0.0.0-20200402223321-bcf690261a44 // indirect
gopkg.in/Shopify/sarama.v1 v1.20.1
gopkg.in/h2non/bimg.v1 v1.0.18
gopkg.in/yaml.v2 v2.2.5

15
go.sum
View File

@ -130,8 +130,8 @@ 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/gomatrixserverlib v0.0.0-20200124100636-0c2ec91d1df5 h1:kmRjpmFOenVpOaV/DRlo9p6z/IbOKlUC+hhKsAAh8Qg=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200124100636-0c2ec91d1df5/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200402141635-4a6e1ade46f8 h1:VZ7xGklSuzU9geMekuxKO4FvUBUaPjP+8IkcwzQtqOI=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200402141635-4a6e1ade46f8/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200409140603-8b9a51fe9b89 h1:YAlUJK/Ty2ZrP/DL41CiR0Cp3pteshnyIS420KVs220=
github.com/matrix-org/gomatrixserverlib v0.0.0-20200409140603-8b9a51fe9b89/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1 h1:osLoFdOy+ChQqVUn2PeTDETFftVkl4w9t/OW18g3lnk=
github.com/matrix-org/naffka v0.0.0-20200127221512-0716baaabaf1/go.mod h1:cXoYQIENbdWIQHt1SyCo6Bl3C3raHwJ0wgVrXHSqf+A=
github.com/matrix-org/util v0.0.0-20171127121716-2e2df66af2f5 h1:W7l5CP4V7wPyPb4tYE11dbmeAOwtFQBTW0rf4OonOS8=
@ -253,6 +253,7 @@ github.com/uber/jaeger-lib v1.5.0/go.mod h1:ComeNDZlWwrWnDv8aPp0Ba6+uUTzImX/Aaua
github.com/uber/jaeger-lib v2.2.0+incompatible h1:MxZXOiR2JuoANZ3J6DE/U0kSFv/eJ/GfSYVCjK7dyaw=
github.com/uber/jaeger-lib v2.2.0+incompatible/go.mod h1:ComeNDZlWwrWnDv8aPp0Ba6+uUTzImX/AauajbLI56U=
github.com/x-cray/logrus-prefixed-formatter v0.5.2/go.mod h1:2duySbKsL6M18s5GU7VPsoEPHyzalCE06qoARUCeBBE=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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=
@ -276,6 +277,8 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -288,8 +291,8 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
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/net v0.0.0-20200226121028-0de0cce0169b h1:0mm1VjtFUOIlE1SbDlwjYaDxZVDP2S5ou6y0gSgXHu8=
golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/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=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -324,7 +327,11 @@ golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c h1:IGkKhmfzcztjm6gYkykvu/NiS8kaqbCWAEWWAyf8J5U=
golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200402223321-bcf690261a44 h1:bMm0eoDiGkM5VfIyKjxDvoflW5GLp7+VCo+60n8F+TE=
golang.org/x/tools v0.0.0-20200402223321-bcf690261a44/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=

View File

@ -203,6 +203,9 @@ type QueryStateAndAuthChainRequest struct {
PrevEventIDs []string `json:"prev_event_ids"`
// The list of auth events for the event. Used to calculate the auth chain
AuthEventIDs []string `json:"auth_event_ids"`
// Should state resolution be ran on the result events?
// TODO: check call sites and remove if we always want to do state res
ResolveState bool `json:"resolve_state"`
}
// QueryStateAndAuthChainResponse is a response to QueryStateAndAuthChain

View File

@ -132,7 +132,7 @@ func (r *RoomserverQueryAPI) QueryLatestEventsAndState(
return err
}
// Look up the currrent state for the requested tuples.
// Look up the current state for the requested tuples.
stateEntries, err := roomState.LoadStateAtSnapshotForStringTuples(
ctx, currentStateSnapshotNID, request.StateToFetch,
)
@ -736,6 +736,14 @@ func (r *RoomserverQueryAPI) QueryStateAndAuthChain(
return err
}
if request.ResolveState {
if stateEvents, err = state.ResolveConflictsAdhoc(
roomVersion, stateEvents, authEvents,
); err != nil {
return err
}
}
for _, event := range stateEvents {
response.StateEvents = append(response.StateEvents, event.Headered(roomVersion))
}

View File

@ -18,7 +18,6 @@ package state
import (
"context"
"errors"
"fmt"
"sort"
"time"
@ -681,6 +680,83 @@ func (v StateResolution) calculateStateAfterManyEvents(
return
}
// ResolveConflictsAdhoc is a helper function to assist the query API in
// performing state resolution when requested. This is a different code
// path to the rest of state.go because this assumes you already have
// gomatrixserverlib.Event objects and not just a bunch of NIDs like
// elsewhere in the state resolution.
// TODO: Some of this can possibly be deduplicated
func ResolveConflictsAdhoc(
version gomatrixserverlib.RoomVersion,
events []gomatrixserverlib.Event,
authEvents []gomatrixserverlib.Event,
) ([]gomatrixserverlib.Event, error) {
type stateKeyTuple struct {
Type string
StateKey string
}
// Prepare our data structures.
eventMap := make(map[stateKeyTuple][]gomatrixserverlib.Event)
var conflicted, notConflicted, resolved []gomatrixserverlib.Event
// Run through all of the events that we were given and sort them
// into a map, sorted by (event_type, state_key) tuple. This means
// that we can easily spot events that are "conflicted", e.g.
// there are duplicate values for the same tuple key.
for _, event := range events {
if event.StateKey() == nil {
// Ignore events that are not state events.
continue
}
// Append the events if there is already a conflicted list for
// this tuple key, create it if not.
tuple := stateKeyTuple{event.Type(), *event.StateKey()}
if _, ok := eventMap[tuple]; ok {
eventMap[tuple] = append(eventMap[tuple], event)
} else {
eventMap[tuple] = []gomatrixserverlib.Event{event}
}
}
// Split out the events in the map into conflicted and unconflicted
// buckets. The conflicted events will be ran through state res,
// whereas unconfliced events will always going to appear in the
// final resolved state.
for _, list := range eventMap {
if len(list) > 1 {
conflicted = append(conflicted, list...)
} else {
notConflicted = append(notConflicted, list...)
}
}
// Work out which state resolution algorithm we want to run for
// the room version.
stateResAlgo, err := version.StateResAlgorithm()
if err != nil {
return nil, err
}
switch stateResAlgo {
case gomatrixserverlib.StateResV1:
// Currently state res v1 doesn't handle unconflicted events
// for us, like state res v2 does, so we will need to add the
// unconflicted events into the state ourselves.
// TODO: Fix state res v1 so this is handled for the caller.
resolved = gomatrixserverlib.ResolveStateConflicts(conflicted, authEvents)
resolved = append(resolved, notConflicted...)
case gomatrixserverlib.StateResV2:
// TODO: auth difference here?
resolved = gomatrixserverlib.ResolveStateConflictsV2(conflicted, notConflicted, authEvents, authEvents)
default:
return nil, fmt.Errorf("unsupported state resolution algorithm %v", stateResAlgo)
}
// Return the final resolved state events, including both the
// resolved set of conflicted events, and the unconflicted events.
return resolved, nil
}
func (v StateResolution) resolveConflicts(
ctx context.Context, version gomatrixserverlib.RoomVersion,
notConflicted, conflicted []types.StateEntry,
@ -695,7 +771,7 @@ func (v StateResolution) resolveConflicts(
case gomatrixserverlib.StateResV2:
return v.resolveConflictsV2(ctx, notConflicted, conflicted)
}
return nil, errors.New("unsupported state resolution algorithm")
return nil, fmt.Errorf("unsupported state resolution algorithm %v", stateResAlgo)
}
// resolveConflicts resolves a list of conflicted state entries. It takes two lists.

View File

@ -43,12 +43,12 @@ var roomVersions = map[gomatrixserverlib.RoomVersion]RoomVersionDescription{
Stable: true,
},
gomatrixserverlib.RoomVersionV3: RoomVersionDescription{
Supported: false,
Stable: false,
Supported: true,
Stable: true,
},
gomatrixserverlib.RoomVersionV4: RoomVersionDescription{
Supported: false,
Stable: false,
Supported: true,
Stable: true,
},
gomatrixserverlib.RoomVersionV5: RoomVersionDescription{
Supported: false,

View File

@ -31,4 +31,7 @@ Alias creators can delete canonical alias with no ops
# Blacklisted because we need to implement v2 invite endpoints for room versions
# to be supported (currently fails with M_UNSUPPORTED_ROOM_VERSION)
Inbound federation rejects invites which are not signed by the sender
Inbound federation rejects invites which are not signed by the sender
# Blacklisted because we don't support ignores yet
Ignore invite in incremental sync

View File

@ -215,7 +215,6 @@ Guest users can sync from default guest_access rooms if joined
Real non-joined users cannot room initalSync for non-world_readable rooms
Push rules come down in an initial /sync
Regular users can add and delete aliases in the default room configuration
Regular users can add and delete aliases when m.room.aliases is restricted
GET /r0/capabilities is not public
GET /joined_rooms lists newly-created room
/joined_rooms returns only joined rooms
@ -225,10 +224,24 @@ Remote user can backfill in a room with version 1
POST /createRoom creates a room with the given version
POST /createRoom rejects attempts to create rooms with numeric versions
POST /createRoom rejects attempts to create rooms with unknown versions
Regular users can add and delete aliases when m.room.aliases is restricted
User can create and send/receive messages in a room with version 2
local user can join room with version 2
remote user can join room with version 2
User can invite local user to room with version 2
Remote user can backfill in a room with version 2
Inbound federation accepts attempts to join v2 rooms from servers with support
Outbound federation can send invites via v2 API
Outbound federation can send invites via v2 API
User can create and send/receive messages in a room with version 3
local user can join room with version 3
Remote user can backfill in a room with version 3
User can create and send/receive messages in a room with version 4
local user can join room with version 4
remote user can join room with version 3
remote user can join room with version 4
Remote user can backfill in a room with version 4
# We don't support ignores yet, so ignore this for now - ha ha.
# Ignore invite in incremental sync
Outbound federation can send invites via v2 API
User can invite local user to room with version 3
User can invite local user to room with version 4