mirror of
https://github.com/matrix-org/dendrite.git
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800 lines
25 KiB
Go
800 lines
25 KiB
Go
package internal
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import (
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"context"
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"crypto/ed25519"
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"encoding/json"
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"errors"
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"fmt"
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"time"
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"github.com/matrix-org/gomatrix"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/gomatrixserverlib/fclient"
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"github.com/matrix-org/gomatrixserverlib/spec"
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"github.com/matrix-org/util"
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"github.com/sirupsen/logrus"
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"github.com/matrix-org/dendrite/federationapi/api"
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"github.com/matrix-org/dendrite/federationapi/consumers"
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"github.com/matrix-org/dendrite/federationapi/statistics"
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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/matrix-org/dendrite/roomserver/version"
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)
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// PerformLeaveRequest implements api.FederationInternalAPI
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func (r *FederationInternalAPI) PerformDirectoryLookup(
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ctx context.Context,
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request *api.PerformDirectoryLookupRequest,
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response *api.PerformDirectoryLookupResponse,
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) (err error) {
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if !r.shouldAttemptDirectFederation(request.ServerName) {
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return fmt.Errorf("relay servers have no meaningful response for directory lookup.")
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}
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dir, err := r.federation.LookupRoomAlias(
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ctx,
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r.cfg.Matrix.ServerName,
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request.ServerName,
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request.RoomAlias,
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)
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if err != nil {
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r.statistics.ForServer(request.ServerName).Failure()
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return err
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}
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response.RoomID = dir.RoomID
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response.ServerNames = dir.Servers
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r.statistics.ForServer(request.ServerName).Success(statistics.SendDirect)
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return nil
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}
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type federatedJoin struct {
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UserID string
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RoomID string
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}
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// PerformJoin implements api.FederationInternalAPI
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func (r *FederationInternalAPI) PerformJoin(
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ctx context.Context,
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request *api.PerformJoinRequest,
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response *api.PerformJoinResponse,
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) {
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// Check that a join isn't already in progress for this user/room.
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j := federatedJoin{request.UserID, request.RoomID}
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if _, found := r.joins.Load(j); found {
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response.LastError = &gomatrix.HTTPError{
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Code: 429,
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Message: `{
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"errcode": "M_LIMIT_EXCEEDED",
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"error": "There is already a federated join to this room in progress. Please wait for it to finish."
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}`, // TODO: Why do none of our error types play nicely with each other?
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}
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return
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}
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r.joins.Store(j, nil)
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defer r.joins.Delete(j)
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// Deduplicate the server names we were provided but keep the ordering
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// as this encodes useful information about which servers are most likely
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// to respond.
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seenSet := make(map[spec.ServerName]bool)
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var uniqueList []spec.ServerName
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for _, srv := range request.ServerNames {
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if seenSet[srv] || r.cfg.Matrix.IsLocalServerName(srv) {
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continue
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}
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seenSet[srv] = true
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uniqueList = append(uniqueList, srv)
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}
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request.ServerNames = uniqueList
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// Try each server that we were provided until we land on one that
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// successfully completes the make-join send-join dance.
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var lastErr error
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for _, serverName := range request.ServerNames {
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if err := r.performJoinUsingServer(
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ctx,
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request.RoomID,
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request.UserID,
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request.Content,
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serverName,
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request.Unsigned,
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); err != nil {
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logrus.WithError(err).WithFields(logrus.Fields{
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"server_name": serverName,
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"room_id": request.RoomID,
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}).Warnf("Failed to join room through server")
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lastErr = err
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continue
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}
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// We're all good.
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response.JoinedVia = serverName
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return
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}
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// If we reach here then we didn't complete a join for some reason.
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var httpErr gomatrix.HTTPError
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if ok := errors.As(lastErr, &httpErr); ok {
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httpErr.Message = string(httpErr.Contents)
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response.LastError = &httpErr
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} else {
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response.LastError = &gomatrix.HTTPError{
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Code: 0,
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WrappedError: nil,
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Message: "Unknown HTTP error",
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}
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if lastErr != nil {
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response.LastError.Message = lastErr.Error()
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}
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}
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logrus.Errorf(
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"failed to join user %q to room %q through %d server(s): last error %s",
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request.UserID, request.RoomID, len(request.ServerNames), lastErr,
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)
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}
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func (r *FederationInternalAPI) performJoinUsingServer(
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ctx context.Context,
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roomID, userID string,
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content map[string]interface{},
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serverName spec.ServerName,
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unsigned map[string]interface{},
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) error {
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if !r.shouldAttemptDirectFederation(serverName) {
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return fmt.Errorf("relay servers have no meaningful response for join.")
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}
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user, err := spec.NewUserID(userID, true)
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if err != nil {
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return err
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}
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room, err := spec.NewRoomID(roomID)
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if err != nil {
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return err
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}
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joinInput := gomatrixserverlib.PerformJoinInput{
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UserID: user,
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RoomID: room,
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ServerName: serverName,
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Content: content,
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Unsigned: unsigned,
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PrivateKey: r.cfg.Matrix.PrivateKey,
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KeyID: r.cfg.Matrix.KeyID,
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KeyRing: r.keyRing,
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EventProvider: federatedEventProvider(ctx, r.federation, r.keyRing, user.Domain(), serverName, func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
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return r.rsAPI.QueryUserIDForSender(ctx, roomID, senderID)
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}, r.rsAPI),
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UserIDQuerier: func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
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return r.rsAPI.QueryUserIDForSender(ctx, roomID, senderID)
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},
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GetOrCreateSenderID: func(ctx context.Context, userID spec.UserID, roomID spec.RoomID, roomVersion string) (spec.SenderID, ed25519.PrivateKey, error) {
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// assign a roomNID, otherwise we can't create a private key for the user
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_, nidErr := r.rsAPI.AssignRoomNID(ctx, roomID, gomatrixserverlib.RoomVersion(roomVersion))
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if nidErr != nil {
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return "", nil, nidErr
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}
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key, keyErr := r.rsAPI.GetOrCreateUserRoomPrivateKey(ctx, userID, roomID)
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if keyErr != nil {
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return "", nil, keyErr
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}
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return spec.SenderIDFromPseudoIDKey(key), key, nil
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},
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StoreSenderIDFromPublicID: func(ctx context.Context, senderID spec.SenderID, userIDRaw string, roomID spec.RoomID) error {
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storeUserID, userErr := spec.NewUserID(userIDRaw, true)
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if userErr != nil {
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return userErr
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}
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return r.rsAPI.StoreUserRoomPublicKey(ctx, senderID, *storeUserID, roomID)
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},
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MembershipQuerier: r.rsAPI,
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}
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response, joinErr := gomatrixserverlib.PerformJoin(ctx, r, joinInput)
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if joinErr != nil {
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if !joinErr.Reachable {
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r.statistics.ForServer(joinErr.ServerName).Failure()
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} else {
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r.statistics.ForServer(joinErr.ServerName).Success(statistics.SendDirect)
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}
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return joinErr.Err
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}
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r.statistics.ForServer(serverName).Success(statistics.SendDirect)
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if response == nil {
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return fmt.Errorf("Received nil response from gomatrixserverlib.PerformJoin")
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}
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// We need to immediately update our list of joined hosts for this room now as we are technically
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// joined. We must do this synchronously: we cannot rely on the roomserver output events as they
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// will happen asyncly. If we don't update this table, you can end up with bad failure modes like
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// joining a room, waiting for 200 OK then changing device keys and have those keys not be sent
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// to other servers (this was a cause of a flakey sytest "Local device key changes get to remote servers")
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// The events are trusted now as we performed auth checks above.
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joinedHosts, err := consumers.JoinedHostsFromEvents(ctx, response.StateSnapshot.GetStateEvents().TrustedEvents(response.JoinEvent.Version(), false), r.rsAPI)
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if err != nil {
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return fmt.Errorf("JoinedHostsFromEvents: failed to get joined hosts: %s", err)
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}
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logrus.WithField("room", roomID).Infof("Joined federated room with %d hosts", len(joinedHosts))
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if _, err = r.db.UpdateRoom(context.Background(), roomID, joinedHosts, nil, true); err != nil {
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return fmt.Errorf("UpdatedRoom: failed to update room with joined hosts: %s", err)
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}
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// TODO: Can I change this to not take respState but instead just take an opaque list of events?
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if err = roomserverAPI.SendEventWithState(
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context.Background(),
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r.rsAPI,
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user.Domain(),
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roomserverAPI.KindNew,
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response.StateSnapshot,
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&types.HeaderedEvent{PDU: response.JoinEvent},
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serverName,
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nil,
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false,
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); err != nil {
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return fmt.Errorf("roomserverAPI.SendEventWithState: %w", err)
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}
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return nil
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}
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// PerformOutboundPeekRequest implements api.FederationInternalAPI
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func (r *FederationInternalAPI) PerformOutboundPeek(
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ctx context.Context,
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request *api.PerformOutboundPeekRequest,
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response *api.PerformOutboundPeekResponse,
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) error {
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// Look up the supported room versions.
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var supportedVersions []gomatrixserverlib.RoomVersion
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for version := range version.SupportedRoomVersions() {
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supportedVersions = append(supportedVersions, version)
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}
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// Deduplicate the server names we were provided but keep the ordering
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// as this encodes useful information about which servers are most likely
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// to respond.
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seenSet := make(map[spec.ServerName]bool)
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var uniqueList []spec.ServerName
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for _, srv := range request.ServerNames {
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if seenSet[srv] {
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continue
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}
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seenSet[srv] = true
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uniqueList = append(uniqueList, srv)
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}
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request.ServerNames = uniqueList
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// See if there's an existing outbound peek for this room ID with
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// one of the specified servers.
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if peeks, err := r.db.GetOutboundPeeks(ctx, request.RoomID); err == nil {
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for _, peek := range peeks {
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if _, ok := seenSet[peek.ServerName]; ok {
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return nil
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}
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}
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}
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// Try each server that we were provided until we land on one that
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// successfully completes the peek
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var lastErr error
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for _, serverName := range request.ServerNames {
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if err := r.performOutboundPeekUsingServer(
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ctx,
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request.RoomID,
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serverName,
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supportedVersions,
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); err != nil {
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logrus.WithError(err).WithFields(logrus.Fields{
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"server_name": serverName,
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"room_id": request.RoomID,
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}).Warnf("Failed to peek room through server")
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lastErr = err
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continue
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}
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// We're all good.
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return nil
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}
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// If we reach here then we didn't complete a peek for some reason.
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var httpErr gomatrix.HTTPError
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if ok := errors.As(lastErr, &httpErr); ok {
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httpErr.Message = string(httpErr.Contents)
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response.LastError = &httpErr
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} else {
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response.LastError = &gomatrix.HTTPError{
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Code: 0,
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WrappedError: nil,
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Message: lastErr.Error(),
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}
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}
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logrus.Errorf(
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"failed to peek room %q through %d server(s): last error %s",
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request.RoomID, len(request.ServerNames), lastErr,
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)
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return lastErr
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}
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func (r *FederationInternalAPI) performOutboundPeekUsingServer(
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ctx context.Context,
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roomID string,
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serverName spec.ServerName,
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supportedVersions []gomatrixserverlib.RoomVersion,
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) error {
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if !r.shouldAttemptDirectFederation(serverName) {
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return fmt.Errorf("relay servers have no meaningful response for outbound peek.")
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}
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// create a unique ID for this peek.
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// for now we just use the room ID again. In future, if we ever
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// support concurrent peeks to the same room with different filters
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// then we would need to disambiguate further.
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peekID := roomID
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// check whether we're peeking already to try to avoid needlessly
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// re-peeking on the server. we don't need a transaction for this,
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// given this is a nice-to-have.
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outboundPeek, err := r.db.GetOutboundPeek(ctx, serverName, roomID, peekID)
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if err != nil {
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return err
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}
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renewing := false
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if outboundPeek != nil {
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nowMilli := time.Now().UnixNano() / int64(time.Millisecond)
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if nowMilli > outboundPeek.RenewedTimestamp+outboundPeek.RenewalInterval {
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logrus.Infof("stale outbound peek to %s for %s already exists; renewing", serverName, roomID)
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renewing = true
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} else {
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logrus.Infof("live outbound peek to %s for %s already exists", serverName, roomID)
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return nil
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}
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}
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// Try to perform an outbound /peek using the information supplied in the
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// request.
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respPeek, err := r.federation.Peek(
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ctx,
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r.cfg.Matrix.ServerName,
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serverName,
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roomID,
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peekID,
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supportedVersions,
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)
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if err != nil {
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r.statistics.ForServer(serverName).Failure()
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return fmt.Errorf("r.federation.Peek: %w", err)
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}
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r.statistics.ForServer(serverName).Success(statistics.SendDirect)
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// Work out if we support the room version that has been supplied in
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// the peek response.
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if respPeek.RoomVersion == "" {
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respPeek.RoomVersion = gomatrixserverlib.RoomVersionV1
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}
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if !gomatrixserverlib.KnownRoomVersion(respPeek.RoomVersion) {
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return fmt.Errorf("unknown room version: %s", respPeek.RoomVersion)
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}
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// we have the peek state now so let's process regardless of whether upstream gives up
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ctx = context.Background()
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// authenticate the state returned (check its auth events etc)
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// the equivalent of CheckSendJoinResponse()
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userIDProvider := func(roomID spec.RoomID, senderID spec.SenderID) (*spec.UserID, error) {
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return r.rsAPI.QueryUserIDForSender(ctx, roomID, senderID)
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}
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authEvents, stateEvents, err := gomatrixserverlib.CheckStateResponse(
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ctx, &respPeek, respPeek.RoomVersion, r.keyRing, federatedEventProvider(ctx, r.federation, r.keyRing, r.cfg.Matrix.ServerName, serverName, userIDProvider, r.rsAPI), userIDProvider, r.rsAPI,
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)
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if err != nil {
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return fmt.Errorf("error checking state returned from peeking: %w", err)
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}
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if err = checkEventsContainCreateEvent(authEvents); err != nil {
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return fmt.Errorf("sanityCheckAuthChain: %w", err)
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}
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// If we've got this far, the remote server is peeking.
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if renewing {
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if err = r.db.RenewOutboundPeek(ctx, serverName, roomID, peekID, respPeek.RenewalInterval); err != nil {
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return err
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}
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} else {
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if err = r.db.AddOutboundPeek(ctx, serverName, roomID, peekID, respPeek.RenewalInterval); err != nil {
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return err
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}
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}
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// logrus.Warnf("got respPeek %#v", respPeek)
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// Send the newly returned state to the roomserver to update our local view.
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if err = roomserverAPI.SendEventWithState(
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ctx, r.rsAPI, r.cfg.Matrix.ServerName,
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roomserverAPI.KindNew,
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// use the authorized state from CheckStateResponse
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&fclient.RespState{
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StateEvents: gomatrixserverlib.NewEventJSONsFromEvents(stateEvents),
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AuthEvents: gomatrixserverlib.NewEventJSONsFromEvents(authEvents),
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},
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&types.HeaderedEvent{PDU: respPeek.LatestEvent},
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serverName,
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nil,
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false,
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); err != nil {
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return fmt.Errorf("r.producer.SendEventWithState: %w", err)
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}
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return nil
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}
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|
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// PerformLeaveRequest implements api.FederationInternalAPI
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func (r *FederationInternalAPI) PerformLeave(
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ctx context.Context,
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request *api.PerformLeaveRequest,
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response *api.PerformLeaveResponse,
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) (err error) {
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userID, err := spec.NewUserID(request.UserID, true)
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if err != nil {
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return err
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}
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|
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// Deduplicate the server names we were provided.
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util.SortAndUnique(request.ServerNames)
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|
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// Try each server that we were provided until we land on one that
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// successfully completes the make-leave send-leave dance.
|
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for _, serverName := range request.ServerNames {
|
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if !r.shouldAttemptDirectFederation(serverName) {
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continue
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}
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// Try to perform a make_leave using the information supplied in the
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// request.
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respMakeLeave, err := r.federation.MakeLeave(
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ctx,
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userID.Domain(),
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serverName,
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request.RoomID,
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request.UserID,
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)
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if err != nil {
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// TODO: Check if the user was not allowed to leave the room.
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logrus.WithError(err).Warnf("r.federation.MakeLeave failed")
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r.statistics.ForServer(serverName).Failure()
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continue
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}
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|
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// Work out if we support the room version that has been supplied in
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// the make_leave response.
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verImpl, err := gomatrixserverlib.GetRoomVersion(respMakeLeave.RoomVersion)
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if err != nil {
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return err
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}
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|
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// Set all the fields to be what they should be, this should be a no-op
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// but it's possible that the remote server returned us something "odd"
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roomID, err := spec.NewRoomID(request.RoomID)
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if err != nil {
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return err
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}
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senderID, err := r.rsAPI.QuerySenderIDForUser(ctx, *roomID, *userID)
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if err != nil {
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return err
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}
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senderIDString := string(senderID)
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respMakeLeave.LeaveEvent.Type = spec.MRoomMember
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respMakeLeave.LeaveEvent.SenderID = senderIDString
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respMakeLeave.LeaveEvent.StateKey = &senderIDString
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respMakeLeave.LeaveEvent.RoomID = request.RoomID
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respMakeLeave.LeaveEvent.Redacts = ""
|
|
leaveEB := verImpl.NewEventBuilderFromProtoEvent(&respMakeLeave.LeaveEvent)
|
|
|
|
if respMakeLeave.LeaveEvent.Content == nil {
|
|
content := map[string]interface{}{
|
|
"membership": "leave",
|
|
}
|
|
if err = leaveEB.SetContent(content); err != nil {
|
|
logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.SetContent failed")
|
|
continue
|
|
}
|
|
}
|
|
if err = leaveEB.SetUnsigned(struct{}{}); err != nil {
|
|
logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.SetUnsigned failed")
|
|
continue
|
|
}
|
|
|
|
// Build the leave event.
|
|
event, err := leaveEB.Build(
|
|
time.Now(),
|
|
userID.Domain(),
|
|
r.cfg.Matrix.KeyID,
|
|
r.cfg.Matrix.PrivateKey,
|
|
)
|
|
if err != nil {
|
|
logrus.WithError(err).Warnf("respMakeLeave.LeaveEvent.Build failed")
|
|
continue
|
|
}
|
|
|
|
// Try to perform a send_leave using the newly built event.
|
|
err = r.federation.SendLeave(
|
|
ctx,
|
|
userID.Domain(),
|
|
serverName,
|
|
event,
|
|
)
|
|
if err != nil {
|
|
logrus.WithError(err).Warnf("r.federation.SendLeave failed")
|
|
r.statistics.ForServer(serverName).Failure()
|
|
continue
|
|
}
|
|
|
|
r.statistics.ForServer(serverName).Success(statistics.SendDirect)
|
|
return nil
|
|
}
|
|
|
|
// If we reach here then we didn't complete a leave for some reason.
|
|
return fmt.Errorf(
|
|
"failed to leave room %q through %d server(s)",
|
|
request.RoomID, len(request.ServerNames),
|
|
)
|
|
}
|
|
|
|
// SendInvite implements api.FederationInternalAPI
|
|
func (r *FederationInternalAPI) SendInvite(
|
|
ctx context.Context,
|
|
event gomatrixserverlib.PDU,
|
|
strippedState []gomatrixserverlib.InviteStrippedState,
|
|
) (gomatrixserverlib.PDU, error) {
|
|
validRoomID, err := spec.NewRoomID(event.RoomID())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
inviter, err := r.rsAPI.QueryUserIDForSender(ctx, *validRoomID, event.SenderID())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if event.StateKey() == nil {
|
|
return nil, errors.New("invite must be a state event")
|
|
}
|
|
|
|
_, destination, err := gomatrixserverlib.SplitID('@', *event.StateKey())
|
|
if err != nil {
|
|
return nil, fmt.Errorf("gomatrixserverlib.SplitID: %w", err)
|
|
}
|
|
|
|
// TODO (devon): This should be allowed via a relay. Currently only transactions
|
|
// can be sent to relays. Would need to extend relays to handle invites.
|
|
if !r.shouldAttemptDirectFederation(destination) {
|
|
return nil, fmt.Errorf("relay servers have no meaningful response for invite.")
|
|
}
|
|
|
|
logrus.WithFields(logrus.Fields{
|
|
"event_id": event.EventID(),
|
|
"user_id": *event.StateKey(),
|
|
"room_id": event.RoomID(),
|
|
"room_version": event.Version(),
|
|
"destination": destination,
|
|
}).Info("Sending invite")
|
|
|
|
inviteReq, err := fclient.NewInviteV2Request(event, strippedState)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("gomatrixserverlib.NewInviteV2Request: %w", err)
|
|
}
|
|
|
|
inviteRes, err := r.federation.SendInviteV2(ctx, inviter.Domain(), destination, inviteReq)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("r.federation.SendInviteV2: failed to send invite: %w", err)
|
|
}
|
|
verImpl, err := gomatrixserverlib.GetRoomVersion(event.Version())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
inviteEvent, err := verImpl.NewEventFromUntrustedJSON(inviteRes.Event)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("r.federation.SendInviteV2 failed to decode event response: %w", err)
|
|
}
|
|
return inviteEvent, nil
|
|
}
|
|
|
|
// PerformServersAlive implements api.FederationInternalAPI
|
|
func (r *FederationInternalAPI) PerformBroadcastEDU(
|
|
ctx context.Context,
|
|
request *api.PerformBroadcastEDURequest,
|
|
response *api.PerformBroadcastEDUResponse,
|
|
) (err error) {
|
|
destinations, err := r.db.GetAllJoinedHosts(ctx)
|
|
if err != nil {
|
|
return fmt.Errorf("r.db.GetAllJoinedHosts: %w", err)
|
|
}
|
|
if len(destinations) == 0 {
|
|
return nil
|
|
}
|
|
|
|
logrus.WithContext(ctx).Infof("Sending wake-up EDU to %d destination(s)", len(destinations))
|
|
|
|
edu := &gomatrixserverlib.EDU{
|
|
Type: "org.matrix.dendrite.wakeup",
|
|
Origin: string(r.cfg.Matrix.ServerName),
|
|
}
|
|
if err = r.queues.SendEDU(edu, r.cfg.Matrix.ServerName, destinations); err != nil {
|
|
return fmt.Errorf("r.queues.SendEDU: %w", err)
|
|
}
|
|
r.MarkServersAlive(destinations)
|
|
|
|
return nil
|
|
}
|
|
|
|
// PerformWakeupServers implements api.FederationInternalAPI
|
|
func (r *FederationInternalAPI) PerformWakeupServers(
|
|
ctx context.Context,
|
|
request *api.PerformWakeupServersRequest,
|
|
response *api.PerformWakeupServersResponse,
|
|
) (err error) {
|
|
r.MarkServersAlive(request.ServerNames)
|
|
return nil
|
|
}
|
|
|
|
func (r *FederationInternalAPI) MarkServersAlive(destinations []spec.ServerName) {
|
|
for _, srv := range destinations {
|
|
wasBlacklisted := r.statistics.ForServer(srv).MarkServerAlive()
|
|
r.queues.RetryServer(srv, wasBlacklisted)
|
|
}
|
|
}
|
|
|
|
func checkEventsContainCreateEvent(events []gomatrixserverlib.PDU) error {
|
|
// sanity check we have a create event and it has a known room version
|
|
for _, ev := range events {
|
|
if ev.Type() == spec.MRoomCreate && ev.StateKeyEquals("") {
|
|
// make sure the room version is known
|
|
content := ev.Content()
|
|
verBody := struct {
|
|
Version string `json:"room_version"`
|
|
}{}
|
|
err := json.Unmarshal(content, &verBody)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if verBody.Version == "" {
|
|
// https://matrix.org/docs/spec/client_server/r0.6.0#m-room-create
|
|
// The version of the room. Defaults to "1" if the key does not exist.
|
|
verBody.Version = "1"
|
|
}
|
|
knownVersions := gomatrixserverlib.RoomVersions()
|
|
if _, ok := knownVersions[gomatrixserverlib.RoomVersion(verBody.Version)]; !ok {
|
|
return fmt.Errorf("m.room.create event has an unknown room version: %s", verBody.Version)
|
|
}
|
|
return nil
|
|
}
|
|
}
|
|
return fmt.Errorf("response is missing m.room.create event")
|
|
}
|
|
|
|
// federatedEventProvider is an event provider which fetches events from the server provided
|
|
func federatedEventProvider(
|
|
ctx context.Context, federation fclient.FederationClient,
|
|
keyRing gomatrixserverlib.JSONVerifier, origin, server spec.ServerName,
|
|
userIDForSender spec.UserIDForSender, rsAPI gomatrixserverlib.MembershipQuerier,
|
|
) gomatrixserverlib.EventProvider {
|
|
// 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.PDU{}
|
|
|
|
// Define a function which we can pass to Check to retrieve missing
|
|
// auth events inline. This greatly increases our chances of not having
|
|
// to repeat the entire set of checks just for a missing event or two.
|
|
return func(roomVersion gomatrixserverlib.RoomVersion, eventIDs []string) ([]gomatrixserverlib.PDU, error) {
|
|
returning := []gomatrixserverlib.PDU{}
|
|
verImpl, err := gomatrixserverlib.GetRoomVersion(roomVersion)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// See if we have retry entries for each of the supplied event IDs.
|
|
for _, eventID := range eventIDs {
|
|
// If we've already satisfied a request for this event ID before then
|
|
// just append the results. We won't retry the request.
|
|
if retry, ok := retries[eventID]; ok {
|
|
if retry == nil {
|
|
return nil, fmt.Errorf("missingAuth: not retrying failed event ID %q", eventID)
|
|
}
|
|
returning = append(returning, retry...)
|
|
continue
|
|
}
|
|
|
|
// Make a note of the fact that we tried to do something with this
|
|
// event ID, even if we don't succeed.
|
|
retries[eventID] = nil
|
|
|
|
// Try to retrieve the event from the server that sent us the send
|
|
// join response.
|
|
tx, txerr := federation.GetEvent(ctx, origin, server, eventID)
|
|
if txerr != nil {
|
|
return nil, fmt.Errorf("missingAuth r.federation.GetEvent: %w", txerr)
|
|
}
|
|
|
|
// For each event returned, add it to the set of return events. We
|
|
// also will populate the retries, in case someone asks for this
|
|
// event ID again.
|
|
for _, pdu := range tx.PDUs {
|
|
// Try to parse the event.
|
|
ev, everr := verImpl.NewEventFromUntrustedJSON(pdu)
|
|
if everr != nil {
|
|
return nil, fmt.Errorf("missingAuth gomatrixserverlib.NewEventFromUntrustedJSON: %w", everr)
|
|
}
|
|
|
|
// Check the signatures of the event.
|
|
if err := gomatrixserverlib.VerifyEventSignatures(ctx, ev, keyRing, userIDForSender, rsAPI); err != nil {
|
|
return nil, fmt.Errorf("missingAuth VerifyEventSignatures: %w", err)
|
|
}
|
|
|
|
// If the event is OK then add it to the results and the retry map.
|
|
returning = append(returning, ev)
|
|
retries[ev.EventID()] = append(retries[ev.EventID()], ev)
|
|
}
|
|
}
|
|
return returning, nil
|
|
}
|
|
}
|
|
|
|
// P2PQueryRelayServers implements api.FederationInternalAPI
|
|
func (r *FederationInternalAPI) P2PQueryRelayServers(
|
|
ctx context.Context,
|
|
request *api.P2PQueryRelayServersRequest,
|
|
response *api.P2PQueryRelayServersResponse,
|
|
) error {
|
|
logrus.Infof("Getting relay servers for: %s", request.Server)
|
|
relayServers, err := r.db.P2PGetRelayServersForServer(ctx, request.Server)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
response.RelayServers = relayServers
|
|
return nil
|
|
}
|
|
|
|
// P2PAddRelayServers implements api.FederationInternalAPI
|
|
func (r *FederationInternalAPI) P2PAddRelayServers(
|
|
ctx context.Context,
|
|
request *api.P2PAddRelayServersRequest,
|
|
response *api.P2PAddRelayServersResponse,
|
|
) error {
|
|
logrus.Infof("Adding relay servers for: %s", request.Server)
|
|
err := r.db.P2PAddRelayServersForServer(ctx, request.Server, request.RelayServers)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// P2PRemoveRelayServers implements api.FederationInternalAPI
|
|
func (r *FederationInternalAPI) P2PRemoveRelayServers(
|
|
ctx context.Context,
|
|
request *api.P2PRemoveRelayServersRequest,
|
|
response *api.P2PRemoveRelayServersResponse,
|
|
) error {
|
|
logrus.Infof("Adding relay servers for: %s", request.Server)
|
|
err := r.db.P2PRemoveRelayServersForServer(ctx, request.Server, request.RelayServers)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (r *FederationInternalAPI) shouldAttemptDirectFederation(
|
|
destination spec.ServerName,
|
|
) bool {
|
|
var shouldRelay bool
|
|
stats := r.statistics.ForServer(destination)
|
|
if stats.AssumedOffline() && len(stats.KnownRelayServers()) > 0 {
|
|
shouldRelay = true
|
|
}
|
|
|
|
return !shouldRelay
|
|
}
|