Hubert Hirtz: 1 Implement casemapping 5 files changed, 123 insertions(+), 83 deletions(-)
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TL;DR: supports for casemapping, now logs are saved in casemapped/canonical/tolower form (eg. in the #channel directory instead of #Channel... or something) == What is casemapping? == see <https://modern.ircdocs.horse/#casemapping-parameter> == Casemapping and multi-upstream == Since each upstream does not necessarily use the same casemapping, and since casemappings cannot coexist [0], 1. soju must also update the database accordingly to upstreams' casemapping, otherwise it will end up inconsistent, 2. soju must "normalize" entity names and expose only one casemapping that is a subset of all supported casemappings (here, ascii). [0] On some upstreams, "emersion[m]" and "emersion{m}" refer to the same user (upstreams that advertise rfc1459 for example), while on others (upstreams that advertise ascii) they don't. Once upstream's casemapping is known (default to rfc1459), entity names in map keys are made into casemapped form, for upstreamConn, upstreamChannel and network. downstreamConn advertises "CASEMAPPING=ascii", and always casemap map keys with ascii. Some functions require the caller to casemap their argument (to avoid needless calls to casemapping functions). == Message forwarding and casemapping == downstream message handling (joins and parts basically): When relaying entity names from downstreams to upstreams, soju uses the upstream casemapping, in order to not get in the way of the user. This does not brings any issue, as long as soju replies with the ascii casemapping in mind (solves point 1.). marshalEntity/marshalUserPrefix: When relaying entity names from upstreams with non-ascii casemappings, soju *partially* casemap them: it only change the case of characters which are not ascii letters. ASCII case is thus kept intact, while special symbols like []{} are the same every time soju sends them to downstreams (solves point 2.). == Casemapping changes == Casemapping changes are not fully supported by this patch and will result in loss of history. This is a limitation of the protocol and should be solved by the RENAME spec. --- This patch uses a casemapMap to avoid missing calls to network.casemap, as advised in the previous revision thread. So.. contrary to what i said in the previous mail, it is not trivial to use the original upstream names instead of calling partialCasemap in marshal{Entity,UserPrefix}, so this patch keeps this behavior. Indeed, the caller of marshal.* would have to ensure it uses the same casemapped form every time, meaning we would have to inspect every message (passed to marshalMessage), lookup channels or users, retrieve their original names if we know them, add them to upstreamConn if we don't, etc. bridge.go | 4 +- downstream.go | 83 +++++++++++++++++++++---------------- service.go | 6 +-- upstream.go | 111 +++++++++++++++++++++++++++++++------------------- user.go | 2 +- 5 files changed, 123 insertions(+), 83 deletions(-) diff --git a/bridge.go b/bridge.go index f707e33..509f1fd 100644 --- a/bridge.go @@ -54,7 +54,9 @@ func sendNames(dc *downstreamConn, ch *upstreamChannel) { maxLength := maxMessageLength - len(emptyNameReply.String()) var buf strings.Builder - for nick, memberships := range ch.Members { + for _, entry := range ch.Members.innerMap { + nick := entry.originalKey + memberships := entry.value.(*memberships) s := memberships.Format(dc) + dc.marshalEntity(ch.conn.network, nick) n := buf.Len() + 1 + len(s) diff --git a/downstream.go b/downstream.go index 2d3784e..18a8a34 100644 --- a/downstream.go +++ b/downstream.go @@ -89,6 +89,7 @@ type downstreamConn struct { registered bool user *user nick string + nickCM string rawUsername string networkName string clientName string @@ -165,13 +166,13 @@ func (dc *downstreamConn) upstream() *upstreamConn { func isOurNick(net *network, nick string) bool { // TODO: this doesn't account for nick changes if net.conn != nil { - return nick == net.conn.nick + return net.casemap(nick) == net.conn.nickCM } // We're not currently connected to the upstream connection, so we don't // know whether this name is our nickname. Best-effort: use the network's // configured nickname and hope it was the one being used when we were // connected. - return nick == net.Nick + return net.casemap(nick) == net.casemap(net.Nick) } // marshalEntity converts an upstream entity name (ie. channel or nick) into a @@ -183,6 +184,7 @@ func (dc *downstreamConn) marshalEntity(net *network, name string) string { if isOurNick(net, name) { return dc.nick } + name = partialCasemap(net.casemap, name) if dc.network != nil { if dc.network != net { panic("soju: tried to marshal an entity for another network") @@ -196,6 +198,7 @@ func (dc *downstreamConn) marshalUserPrefix(net *network, prefix *irc.Prefix) *i if isOurNick(net, prefix.Name) { return dc.prefix() } + prefix.Name = partialCasemap(net.casemap, prefix.Name) if dc.network != nil { if dc.network != net { panic("soju: tried to marshal a user prefix for another network") @@ -325,8 +328,8 @@ func (dc *downstreamConn) ackMsgID(id string) { return } - delivered, ok := network.delivered[entity] - if !ok { + delivered := network.delivered.Value(entity).(map[string]string) + if delivered == nil { return } @@ -412,13 +415,15 @@ func (dc *downstreamConn) handleMessageUnregistered(msg *irc.Message) error { Params: []string{dc.nick, nick, "contains illegal characters"}, }} } - if nick == serviceNick { + nickCM := casemapASCII(nick) + if nickCM == serviceNickCM { return ircError{&irc.Message{ Command: irc.ERR_NICKNAMEINUSE, Params: []string{dc.nick, nick, "Nickname reserved for bouncer service"}, }} } dc.nick = nick + dc.nickCM = nickCM case "USER": if err := parseMessageParams(msg, &dc.rawUsername, nil, nil, &dc.realname); err != nil { return err @@ -733,6 +738,7 @@ func (dc *downstreamConn) updateNick() { Params: []string{uc.nick}, }) dc.nick = uc.nick + dc.nickCM = casemapASCII(dc.nick) } } @@ -878,6 +884,7 @@ func (dc *downstreamConn) welcome() error { isupport := []string{ fmt.Sprintf("CHATHISTORY=%v", dc.srv.HistoryLimit), + "CASEMAPPING=ascii", } if uc := dc.upstream(); uc != nil && uc.networkName != "" { @@ -920,11 +927,13 @@ func (dc *downstreamConn) welcome() error { dc.updateSupportedCaps() dc.forEachUpstream(func(uc *upstreamConn) { - for _, ch := range uc.channels { + for _, entry := range uc.channels.innerMap { + ch := entry.value.(*upstreamChannel) if !ch.complete { continue } - if record, ok := uc.network.channels[ch.Name]; ok && record.Detached { + record := uc.network.channels.Value(ch.Name).(*Channel) + if record != nil && record.Detached { continue } @@ -947,8 +956,10 @@ func (dc *downstreamConn) welcome() error { } // Fast-forward history to last message - for target, delivered := range net.delivered { - if ch, ok := net.channels[target]; ok && ch.Detached { + for target, entry := range net.delivered.innerMap { + delivered := entry.value.(map[string]string) + ch := net.channels.Value(target).(*Channel) + if ch != nil && ch.Detached { continue } @@ -982,8 +993,10 @@ func (dc *downstreamConn) sendNetworkBacklog(net *network) { if dc.caps["draft/chathistory"] || dc.user.msgStore == nil { return } - for target, delivered := range net.delivered { - if ch, ok := net.channels[target]; ok && ch.Detached { + for target, entry := range net.delivered.innerMap { + delivered := entry.value.(map[string]string) + ch := net.channels.Value(target).(*Channel) + if ch != nil && ch.Detached { continue } @@ -1111,7 +1124,7 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { Params: []string{dc.nick, rawNick, "contains illegal characters"}, }} } - if nick == serviceNick { + if casemapASCII(nick) == serviceNickCM { return ircError{&irc.Message{ Command: irc.ERR_NICKNAMEINUSE, Params: []string{dc.nick, rawNick, "Nickname reserved for bouncer service"}, @@ -1147,6 +1160,7 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { Params: []string{nick}, }) dc.nick = nick + dc.nickCM = casemapASCII(dc.nick) } case "JOIN": var namesStr string @@ -1179,9 +1193,8 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { Params: params, }) - var ch *Channel - var ok bool - if ch, ok = uc.network.channels[upstreamName]; ok { + ch := uc.network.channels.Value(upstreamName).(*Channel) + if ch != nil { // Don't clear the channel key if there's one set // TODO: add a way to unset the channel key if key != "" { @@ -1193,7 +1206,7 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { Name: upstreamName, Key: key, } - uc.network.channels[upstreamName] = ch + uc.network.channels.SetValue(upstreamName, ch) } if err := dc.srv.db.StoreChannel(uc.network.ID, ch); err != nil { dc.logger.Printf("failed to create or update channel %q: %v", upstreamName, err) @@ -1217,16 +1230,15 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { } if strings.EqualFold(reason, "detach") { - var ch *Channel - var ok bool - if ch, ok = uc.network.channels[upstreamName]; ok { + ch := uc.network.channels.Value(upstreamName).(*Channel) + if ch != nil { uc.network.detach(ch) } else { ch = &Channel{ Name: name, Detached: true, } - uc.network.channels[upstreamName] = ch + uc.network.channels.SetValue(upstreamName, ch) } if err := dc.srv.db.StoreChannel(uc.network.ID, ch); err != nil { dc.logger.Printf("failed to create or update channel %q: %v", upstreamName, err) @@ -1313,7 +1325,7 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { modeStr = msg.Params[1] } - if name == dc.nick { + if casemapASCII(name) == dc.nickCM { if modeStr != "" { dc.forEachUpstream(func(uc *upstreamConn) { uc.SendMessageLabeled(dc.id, &irc.Message{ @@ -1351,8 +1363,8 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { Params: params, }) } else { - ch, ok := uc.channels[upstreamName] - if !ok { + ch := uc.channels.Value(upstreamName).(*upstreamChannel) + if ch == nil { return ircError{&irc.Message{ Command: irc.ERR_NOSUCHCHANNEL, Params: []string{dc.nick, name, "No such channel"}, @@ -1388,7 +1400,7 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { return err } - uc, upstreamChannel, err := dc.unmarshalEntity(channel) + uc, upstreamName, err := dc.unmarshalEntity(channel) if err != nil { return err } @@ -1397,14 +1409,14 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { topic := msg.Params[1] uc.SendMessageLabeled(dc.id, &irc.Message{ Command: "TOPIC", - Params: []string{upstreamChannel, topic}, + Params: []string{upstreamName, topic}, }) } else { // getting topic - ch, ok := uc.channels[upstreamChannel] - if !ok { + ch := uc.channels.Value(upstreamName).(*upstreamChannel) + if ch == nil { return ircError{&irc.Message{ Command: irc.ERR_NOSUCHCHANNEL, - Params: []string{dc.nick, upstreamChannel, "No such channel"}, + Params: []string{dc.nick, upstreamName, "No such channel"}, }} } sendTopic(dc, ch) @@ -1466,19 +1478,19 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { channels := strings.Split(msg.Params[0], ",") for _, channel := range channels { - uc, upstreamChannel, err := dc.unmarshalEntity(channel) + uc, upstreamName, err := dc.unmarshalEntity(channel) if err != nil { return err } - ch, ok := uc.channels[upstreamChannel] - if ok { + ch := uc.channels.Value(upstreamName).(*upstreamChannel) + if ch != nil { sendNames(dc, ch) } else { // NAMES on a channel we have not joined, ask upstream uc.SendMessageLabeled(dc.id, &irc.Message{ Command: "NAMES", - Params: []string{upstreamChannel}, + Params: []string{upstreamName}, }) } } @@ -1495,8 +1507,9 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { // TODO: support WHO masks entity := msg.Params[0] + entityCM := casemapASCII(entity) - if entity == dc.nick { + if entityCM == dc.nickCM { // TODO: support AWAY (H/G) in self WHO reply dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), @@ -1510,7 +1523,7 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { }) return nil } - if entity == serviceNick { + if entityCM == serviceNickCM { dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_WHOREPLY, @@ -1561,7 +1574,7 @@ func (dc *downstreamConn) handleMessageRegistered(msg *irc.Message) error { mask = mask[:i] } - if mask == dc.nick { + if casemapASCII(mask) == dc.nickCM { dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_WHOISUSER, diff --git a/service.go b/service.go index e5ac17e..15b7dd9 100644 --- a/service.go +++ b/service.go @@ -409,7 +409,7 @@ func handleServiceNetworkStatus(dc *downstreamConn, params []string) error { } else { statuses = append(statuses, "connected") } - details = fmt.Sprintf("%v channels", len(uc.channels)) + details = fmt.Sprintf("%v channels", uc.channels.Len()) } else { statuses = append(statuses, "disconnected") if net.lastError != nil { @@ -769,8 +769,8 @@ func handleServiceChannelUpdate(dc *downstreamConn, params []string) error { return fmt.Errorf("unknown channel %q", name) } - ch, ok := uc.network.channels[upstreamName] - if !ok { + ch := uc.network.channels.Value(upstreamName).(*Channel) + if ch == nil { return fmt.Errorf("unknown channel %q", name) } diff --git a/upstream.go b/upstream.go index 5c3615d..5e1b13f 100644 --- a/upstream.go +++ b/upstream.go @@ -101,6 +101,8 @@ type upstreamConn struct { saslClient sasl.Client saslStarted bool + casemapIsSet bool + // set of LIST commands in progress, per downstream pendingLISTDownstreamSet map[uint64]struct{} } @@ -235,6 +237,7 @@ func (uc *upstreamConn) isChannel(entity string) bool { } func (uc *upstreamConn) isOurNick(nick string) bool { + return uc.nickCM == uc.network.casemap(nick) } func (uc *upstreamConn) getPendingLIST() *pendingLIST { @@ -426,11 +429,12 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { uc.produce("", msg, nil) } else { // regular user message target := entity - if target == uc.nick { + if uc.isOurNick(target) { target = msg.Prefix.Name } - if ch, ok := uc.network.channels[target]; ok { + ch := uc.network.channels.Value(target).(*Channel) + if ch != nil { if ch.Detached { uc.handleDetachedMessage(msg.Prefix.Name, text, ch) } @@ -607,9 +611,10 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { dc.updateSupportedCaps() }) - if len(uc.network.channels) > 0 { + if uc.network.channels.Len() > 0 { var channels, keys []string - for _, ch := range uc.network.channels { + for _, entry := range uc.network.channels.innerMap { + ch := entry.value.(*Channel) channels = append(channels, ch.Name) keys = append(keys, ch.Key) } @@ -648,7 +653,7 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { } uc.network.updateCasemapping(casemap) uc.nickCM = uc.network.casemap(uc.nick) - uc.advertisedCasemap = true + uc.casemapIsSet = true case "CHANMODES": parts := strings.SplitN(value, ",", 5) if len(parts) < 4 { @@ -691,6 +696,14 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { // TODO: handle ISUPPORT negations } } + case irc.ERR_NOMOTD, irc.RPL_ENDOFMOTD: + if !uc.casemapIsSet { + // upstream did not send any CASEMAPPING token, thus + // we assume it implements the old RFCs with rfc1459. + uc.casemapIsSet = true + uc.network.updateCasemapping(casemapRFC1459) + uc.nickCM = uc.network.casemap(uc.nick) + } case "BATCH": var tag string if err := parseMessageParams(msg, &tag); err != nil { @@ -736,7 +749,7 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { } me := false - if uc.network.casemap(msg.Prefix.Name) == uc.nickCM { + if uc.isOurNick(msg.Prefix.Name) { uc.logger.Printf("changed nick from %q to %q", uc.nick, newNick) me = true uc.nick = newNick @@ -773,13 +786,13 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { } for _, ch := range strings.Split(channels, ",") { - if msg.Prefix.Name == uc.nick { + if uc.isOurNick(msg.Prefix.Name) { uc.logger.Printf("joined channel %q", ch) - uc.channels[ch] = &upstreamChannel{ + uc.channels.SetValue(ch, &upstreamChannel{ Name: ch, conn: uc, - Members: make(map[string]*memberships), - } + Members: newCasemapMap(0), + }) uc.updateChannelAutoDetach(ch) uc.SendMessage(&irc.Message{ @@ -791,7 +804,7 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { if err != nil { return err } - ch.Members[msg.Prefix.Name] = &memberships{} + ch.Members.SetValue(msg.Prefix.Name, &memberships{}) } chMsg := msg.Copy() @@ -809,10 +822,11 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { } for _, ch := range strings.Split(channels, ",") { - if msg.Prefix.Name == uc.nick { + if uc.isOurNick(msg.Prefix.Name) { uc.logger.Printf("parted channel %q", ch) - if uch, ok := uc.channels[ch]; ok { - delete(uc.channels, ch) + uch := uc.channels.Value(ch).(*upstreamChannel) + if uch != nil { + uc.channels.Delete(ch) uch.updateAutoDetach(0) } } else { @@ -820,7 +834,7 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { if err != nil { return err } - delete(ch.Members, msg.Prefix.Name) + ch.Members.Delete(msg.Prefix.Name) } chMsg := msg.Copy() @@ -837,15 +851,15 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { return err } - if user == uc.nick { + if uc.isOurNick(user) { uc.logger.Printf("kicked from channel %q by %s", channel, msg.Prefix.Name) - delete(uc.channels, channel) + uc.channels.Delete(channel) } else { ch, err := uc.getChannel(channel) if err != nil { return err } - delete(ch.Members, user) + ch.Members.Delete(user) } uc.produce(channel, msg, nil) @@ -854,13 +868,14 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { return fmt.Errorf("expected a prefix") } - if msg.Prefix.Name == uc.nick { + if uc.isOurNick(msg.Prefix.Name) { uc.logger.Printf("quit") } - for _, ch := range uc.channels { - if _, ok := ch.Members[msg.Prefix.Name]; ok { - delete(ch.Members, msg.Prefix.Name) + for _, entry := range uc.channels.innerMap { + ch := entry.value.(*upstreamChannel) + if ch.Members.Has(msg.Prefix.Name) { + ch.Members.Delete(msg.Prefix.Name) uc.appendLog(ch.Name, msg) } @@ -931,7 +946,8 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { uc.appendLog(ch.Name, msg) - if ch, ok := uc.network.channels[name]; !ok || !ch.Detached { + c := uc.network.channels.Value(name).(*Channel) + if c == nil || !c.Detached { uc.forEachDownstream(func(dc *downstreamConn) { params := make([]string, len(msg.Params)) params[0] = dc.marshalEntity(uc.network, name) @@ -987,7 +1003,8 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { return err } if firstMode { - if c, ok := uc.network.channels[channel]; !ok || !c.Detached { + c := uc.network.channels.Value(channel).(*Channel) + if c == nil || !c.Detached { modeStr, modeParams := ch.modes.Format() uc.forEachDownstream(func(dc *downstreamConn) { @@ -1084,8 +1101,8 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { return err } - ch, ok := uc.channels[name] - if !ok { + ch := uc.channels.Value(name).(*upstreamChannel) + if ch == nil { // NAMES on a channel we have not joined, forward to downstream uc.forEachDownstreamByID(downstreamID, func(dc *downstreamConn) { channel := dc.marshalEntity(uc.network, name) @@ -1113,7 +1130,7 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { for _, s := range splitSpace(members) { memberships, nick := uc.parseMembershipPrefix(s) - ch.Members[nick] = memberships + ch.Members.SetValue(nick, memberships) } case irc.RPL_ENDOFNAMES: var name string @@ -1121,8 +1138,8 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { return err } - ch, ok := uc.channels[name] - if !ok { + ch := uc.channels.Value(name).(*upstreamChannel) + if ch == nil { // NAMES on a channel we have not joined, forward to downstream uc.forEachDownstreamByID(downstreamID, func(dc *downstreamConn) { channel := dc.marshalEntity(uc.network, name) @@ -1141,7 +1158,8 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { } ch.complete = true - if c, ok := uc.network.channels[name]; !ok || !c.Detached { + c := uc.network.channels.Value(name).(*Channel) + if c == nil || !c.Detached { uc.forEachDownstream(func(dc *downstreamConn) { forwardChannel(dc, ch) }) @@ -1295,7 +1313,7 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { return err } - weAreInvited := nick == uc.nick + weAreInvited := uc.isOurNick(nick) uc.forEachDownstream(func(dc *downstreamConn) { if !weAreInvited && !dc.caps["invite-notify"] { @@ -1418,7 +1436,7 @@ func (uc *upstreamConn) handleMessage(msg *irc.Message) error { // Ignore case irc.RPL_LUSERCLIENT, irc.RPL_LUSEROP, irc.RPL_LUSERUNKNOWN, irc.RPL_LUSERCHANNELS, irc.RPL_LUSERME: // Ignore - case irc.RPL_MOTDSTART, irc.RPL_MOTD, irc.RPL_ENDOFMOTD: + case irc.RPL_MOTDSTART, irc.RPL_MOTD: // Ignore case irc.RPL_LISTSTART: // Ignore @@ -1584,6 +1602,7 @@ func splitSpace(s string) []string { func (uc *upstreamConn) register() { uc.nick = uc.network.Nick + uc.nickCM = uc.network.casemap(uc.nick) uc.username = uc.network.Username if uc.username == "" { uc.username = uc.nick @@ -1689,20 +1708,21 @@ func (uc *upstreamConn) appendLog(entity string, msg *irc.Message) (msgID string } detached := false - if ch, ok := uc.network.channels[entity]; ok { + if ch := uc.network.channels.Value(entity).(*Channel); ch != nil { detached = ch.Detached } - delivered, ok := uc.network.delivered[entity] - if !ok { - lastID, err := uc.user.msgStore.LastMsgID(uc.network, entity, time.Now()) + delivered := uc.network.delivered.Value(entity).(map[string]string) + entityCM := uc.network.casemap(entity) + if delivered == nil { + lastID, err := uc.user.msgStore.LastMsgID(uc.network, entityCM, time.Now()) if err != nil { uc.logger.Printf("failed to log message: failed to get last message ID: %v", err) return "" } delivered = make(map[string]string) - uc.network.delivered[entity] = delivered + uc.network.delivered.SetValue(entity, delivered) for clientName, _ := range uc.network.offlineClients { delivered[clientName] = lastID @@ -1717,7 +1737,7 @@ func (uc *upstreamConn) appendLog(entity string, msg *irc.Message) (msgID string } } - msgID, err := uc.user.msgStore.Append(uc.network, entity, msg) + msgID, err := uc.user.msgStore.Append(uc.network, entityCM, msg) if err != nil { uc.logger.Printf("failed to log message: %v", err) return "" @@ -1738,7 +1758,8 @@ func (uc *upstreamConn) produce(target string, msg *irc.Message, origin *downstr } // Don't forward messages if it's a detached channel - if ch, ok := uc.network.channels[target]; ok && ch.Detached { + ch := uc.network.channels.Value(target).(*Channel) + if ch != nil && ch.Detached { return } @@ -1773,9 +1794,13 @@ func (uc *upstreamConn) updateAway() { } func (uc *upstreamConn) updateChannelAutoDetach(name string) { - if uch, ok := uc.channels[name]; ok { - if ch, ok := uc.network.channels[name]; ok && !ch.Detached { - uch.updateAutoDetach(ch.DetachAfter) - } + uch := uc.channels.Value(name).(*upstreamChannel) + if uch == nil { + return + } + ch := uc.network.channels.Value(name).(*Channel) + if ch == nil || ch.Detached { + return } + uch.updateAutoDetach(ch.DetachAfter) } diff --git a/user.go b/user.go index 04d7513..9a90253 100644 --- a/user.go +++ b/user.go @@ -61,7 +61,7 @@ type network struct { stopped chan struct{} conn *upstreamConn - channels casemapMap // values are of type Channel + channels casemapMap // values are of type *Channel delivered casemapMap // values are of type map[string]string (entity -> client name -> msg ID) offlineClients map[string]struct{} // indexed by client name lastError error -- 2.26.2