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Initial support for multiple server names (#2829)

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This PR is the first step towards virtual hosting by laying the
groundwork for multiple server names being configured.
This commit is contained in:
Neil Alexander 2022-10-26 12:59:19 +01:00 • committed by GitHub
parent 2a4c7f45b3
commit f6dea712d2
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GPG key ID: 4AEE18F83AFDEB23
46 changed files with 291 additions and 155 deletions
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23
roomserver/internal/perform/perform_join.go
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@ -92,7 +92,7 @@ func (r *Joiner) performJoin(
Msg: fmt.Sprintf("Supplied user ID %q in incorrect format", req.UserID),
}
}
if domain != r.Cfg.Matrix.ServerName {
if !r.Cfg.Matrix.IsLocalServerName(domain) {
return "", "", &rsAPI.PerformError{
Code: rsAPI.PerformErrorBadRequest,
Msg: fmt.Sprintf("User %q does not belong to this homeserver", req.UserID),
@ -124,7 +124,7 @@ func (r *Joiner) performJoinRoomByAlias(
// Check if this alias matches our own server configuration. If it
// doesn't then we'll need to try a federated join.
var roomID string
if domain != r.Cfg.Matrix.ServerName {
if !r.Cfg.Matrix.IsLocalServerName(domain) {
// The alias isn't owned by us, so we will need to try joining using
// a remote server.
dirReq := fsAPI.PerformDirectoryLookupRequest{
@ -172,7 +172,7 @@ func (r *Joiner) performJoinRoomByID(
// The original client request ?server_name=... may include this HS so filter that out so we
// don't attempt to make_join with ourselves
for i := 0; i < len(req.ServerNames); i++ {
if req.ServerNames[i] == r.Cfg.Matrix.ServerName {
if r.Cfg.Matrix.IsLocalServerName(req.ServerNames[i]) {
// delete this entry
req.ServerNames = append(req.ServerNames[:i], req.ServerNames[i+1:]...)
i--
@ -191,12 +191,19 @@ func (r *Joiner) performJoinRoomByID(
// If the server name in the room ID isn't ours then it's a
// possible candidate for finding the room via federation. Add
// it to the list of servers to try.
if domain != r.Cfg.Matrix.ServerName {
if !r.Cfg.Matrix.IsLocalServerName(domain) {
req.ServerNames = append(req.ServerNames, domain)
}
// Prepare the template for the join event.
userID := req.UserID
_, userDomain, err := gomatrixserverlib.SplitID('@', userID)
if err != nil {
return "", "", &rsAPI.PerformError{
Code: rsAPI.PerformErrorBadRequest,
Msg: fmt.Sprintf("User ID %q is invalid: %s", userID, err),
}
}
eb := gomatrixserverlib.EventBuilder{
Type: gomatrixserverlib.MRoomMember,
Sender: userID,
@ -247,7 +254,7 @@ func (r *Joiner) performJoinRoomByID(
// If we were invited by someone from another server then we can
// assume they are in the room so we can join via them.
if inviterDomain != r.Cfg.Matrix.ServerName {
if !r.Cfg.Matrix.IsLocalServerName(inviterDomain) {
req.ServerNames = append(req.ServerNames, inviterDomain)
forceFederatedJoin = true
memberEvent := gjson.Parse(string(inviteEvent.JSON()))
@ -300,7 +307,7 @@ func (r *Joiner) performJoinRoomByID(
{
Kind: rsAPI.KindNew,
Event: event.Headered(buildRes.RoomVersion),
SendAsServer: string(r.Cfg.Matrix.ServerName),
SendAsServer: string(userDomain),
},
},
}
@ -323,7 +330,7 @@ func (r *Joiner) performJoinRoomByID(
// The room doesn't exist locally. If the room ID looks like it should
// be ours then this probably means that we've nuked our database at
// some point.
if domain == r.Cfg.Matrix.ServerName {
if r.Cfg.Matrix.IsLocalServerName(domain) {
// If there are no more server names to try then give up here.
// Otherwise we'll try a federated join as normal, since it's quite
// possible that the room still exists on other servers.
@ -348,7 +355,7 @@ func (r *Joiner) performJoinRoomByID(
// it will have been overwritten with a room ID by performJoinRoomByAlias.
// We should now include this in the response so that the CS API can
// return the right room ID.
return req.RoomIDOrAlias, r.Cfg.Matrix.ServerName, nil
return req.RoomIDOrAlias, userDomain, nil
}
func (r *Joiner) performFederatedJoinRoomByID(