mirror of
https://github.com/ergochat/ergo.git
synced 2024-11-22 11:59:40 +01:00
fix various data races, including 2 introduced by #139
This commit is contained in:
parent
58fb997e77
commit
23a66fa502
@ -94,7 +94,7 @@ func NewClient(server *Server, conn net.Conn, isTLS bool) *Client {
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go socket.RunSocketWriter()
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client := &Client{
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atime: now,
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authorized: server.password == nil,
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authorized: server.getPassword() == nil,
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capabilities: caps.NewSet(),
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capState: CapNone,
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capVersion: caps.Cap301,
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@ -182,10 +182,11 @@ func (client *Client) maxlens() (int, int) {
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maxlenTags = 4096
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}
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if client.capabilities.Has(caps.MaxLine) {
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if client.server.limits.LineLen.Tags > maxlenTags {
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maxlenTags = client.server.limits.LineLen.Tags
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limits := client.server.getLimits()
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if limits.LineLen.Tags > maxlenTags {
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maxlenTags = limits.LineLen.Tags
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}
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maxlenRest = client.server.limits.LineLen.Rest
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maxlenRest = limits.LineLen.Rest
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}
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return maxlenTags, maxlenRest
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}
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@ -679,7 +680,7 @@ func (client *Client) Send(tags *map[string]ircmsg.TagValue, prefix string, comm
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func (client *Client) Notice(text string) {
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limit := 400
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if client.capabilities.Has(caps.MaxLine) {
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limit = client.server.limits.LineLen.Rest - 110
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limit = client.server.getLimits().LineLen.Rest - 110
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}
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lines := wordWrap(text, limit)
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22
irc/getters.go
Normal file
22
irc/getters.go
Normal file
@ -0,0 +1,22 @@
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// Copyright (c) 2017 Shivaram Lingamneni <slingamn@cs.stanford.edu>
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// released under the MIT license
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package irc
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func (server *Server) getISupport() *ISupportList {
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server.configurableStateMutex.RLock()
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defer server.configurableStateMutex.RUnlock()
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return server.isupport
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}
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func (server *Server) getLimits() Limits {
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server.configurableStateMutex.RLock()
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defer server.configurableStateMutex.RUnlock()
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return server.limits
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}
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func (server *Server) getPassword() []byte {
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server.configurableStateMutex.RLock()
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defer server.configurableStateMutex.RUnlock()
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return server.password
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}
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@ -142,7 +142,7 @@ func (il *ISupportList) RegenerateCachedReply() {
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// RplISupport outputs our ISUPPORT lines to the client. This is used on connection and in VERSION responses.
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func (client *Client) RplISupport() {
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for _, tokenline := range client.server.isupport.CachedReply {
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for _, tokenline := range client.server.getISupport().CachedReply {
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// ugly trickery ahead
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client.Send(nil, client.server.name, RPL_ISUPPORT, append([]string{client.nick}, tokenline...)...)
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}
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@ -34,7 +34,7 @@ func nickHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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return false
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}
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if err != nil || len(nicknameRaw) > server.limits.NickLen || restrictedNicknames[nickname] {
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if err != nil || len(nicknameRaw) > server.getLimits().NickLen || restrictedNicknames[nickname] {
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client.Send(nil, server.name, ERR_ERRONEUSNICKNAME, client.nick, nicknameRaw, "Erroneous nickname")
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return false
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}
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@ -182,29 +182,31 @@ func NewServer(config *Config, logger *logger.Manager) (*Server, error) {
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func (server *Server) setISupport() {
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maxTargetsString := strconv.Itoa(maxTargets)
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server.configurableStateMutex.RLock()
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// add RPL_ISUPPORT tokens
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server.isupport = NewISupportList()
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server.isupport.Add("AWAYLEN", strconv.Itoa(server.limits.AwayLen))
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server.isupport.Add("CASEMAPPING", casemappingName)
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server.isupport.Add("CHANMODES", strings.Join([]string{Modes{BanMask, ExceptMask, InviteMask}.String(), "", Modes{UserLimit, Key}.String(), Modes{InviteOnly, Moderated, NoOutside, OpOnlyTopic, ChanRoleplaying, Secret}.String()}, ","))
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server.isupport.Add("CHANNELLEN", strconv.Itoa(server.limits.ChannelLen))
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server.isupport.Add("CHANTYPES", "#")
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server.isupport.Add("ELIST", "U")
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server.isupport.Add("EXCEPTS", "")
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server.isupport.Add("INVEX", "")
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server.isupport.Add("KICKLEN", strconv.Itoa(server.limits.KickLen))
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server.isupport.Add("MAXLIST", fmt.Sprintf("beI:%s", strconv.Itoa(server.limits.ChanListModes)))
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server.isupport.Add("MAXTARGETS", maxTargetsString)
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server.isupport.Add("MODES", "")
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server.isupport.Add("MONITOR", strconv.Itoa(server.limits.MonitorEntries))
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server.isupport.Add("NETWORK", server.networkName)
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server.isupport.Add("NICKLEN", strconv.Itoa(server.limits.NickLen))
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server.isupport.Add("PREFIX", "(qaohv)~&@%+")
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server.isupport.Add("RPCHAN", "E")
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server.isupport.Add("RPUSER", "E")
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server.isupport.Add("STATUSMSG", "~&@%+")
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server.isupport.Add("TARGMAX", fmt.Sprintf("NAMES:1,LIST:1,KICK:1,WHOIS:1,USERHOST:10,PRIVMSG:%s,TAGMSG:%s,NOTICE:%s,MONITOR:", maxTargetsString, maxTargetsString, maxTargetsString))
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server.isupport.Add("TOPICLEN", strconv.Itoa(server.limits.TopicLen))
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isupport := NewISupportList()
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isupport.Add("AWAYLEN", strconv.Itoa(server.limits.AwayLen))
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isupport.Add("CASEMAPPING", casemappingName)
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isupport.Add("CHANMODES", strings.Join([]string{Modes{BanMask, ExceptMask, InviteMask}.String(), "", Modes{UserLimit, Key}.String(), Modes{InviteOnly, Moderated, NoOutside, OpOnlyTopic, ChanRoleplaying, Secret}.String()}, ","))
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isupport.Add("CHANNELLEN", strconv.Itoa(server.limits.ChannelLen))
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isupport.Add("CHANTYPES", "#")
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isupport.Add("ELIST", "U")
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isupport.Add("EXCEPTS", "")
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isupport.Add("INVEX", "")
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isupport.Add("KICKLEN", strconv.Itoa(server.limits.KickLen))
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isupport.Add("MAXLIST", fmt.Sprintf("beI:%s", strconv.Itoa(server.limits.ChanListModes)))
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isupport.Add("MAXTARGETS", maxTargetsString)
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isupport.Add("MODES", "")
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isupport.Add("MONITOR", strconv.Itoa(server.limits.MonitorEntries))
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isupport.Add("NETWORK", server.networkName)
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isupport.Add("NICKLEN", strconv.Itoa(server.limits.NickLen))
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isupport.Add("PREFIX", "(qaohv)~&@%+")
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isupport.Add("RPCHAN", "E")
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isupport.Add("RPUSER", "E")
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isupport.Add("STATUSMSG", "~&@%+")
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isupport.Add("TARGMAX", fmt.Sprintf("NAMES:1,LIST:1,KICK:1,WHOIS:1,USERHOST:10,PRIVMSG:%s,TAGMSG:%s,NOTICE:%s,MONITOR:", maxTargetsString, maxTargetsString, maxTargetsString))
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isupport.Add("TOPICLEN", strconv.Itoa(server.limits.TopicLen))
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// account registration
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if server.accountRegistration.Enabled {
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@ -216,12 +218,18 @@ func (server *Server) setISupport() {
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}
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}
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server.isupport.Add("REGCOMMANDS", "CREATE,VERIFY")
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server.isupport.Add("REGCALLBACKS", strings.Join(enabledCallbacks, ","))
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server.isupport.Add("REGCREDTYPES", "passphrase,certfp")
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isupport.Add("REGCOMMANDS", "CREATE,VERIFY")
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isupport.Add("REGCALLBACKS", strings.Join(enabledCallbacks, ","))
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isupport.Add("REGCREDTYPES", "passphrase,certfp")
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}
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server.isupport.RegenerateCachedReply()
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server.configurableStateMutex.RUnlock()
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isupport.RegenerateCachedReply()
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server.configurableStateMutex.Lock()
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server.isupport = isupport
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server.configurableStateMutex.Unlock()
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}
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func loadChannelList(channel *Channel, list string, maskMode Mode) {
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@ -440,15 +448,16 @@ func (server *Server) tryRegister(c *Client) {
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// MOTD serves the Message of the Day.
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func (server *Server) MOTD(client *Client) {
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server.configurableStateMutex.RLock()
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defer server.configurableStateMutex.RUnlock()
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motdLines := server.motdLines
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server.configurableStateMutex.RUnlock()
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if len(server.motdLines) < 1 {
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if len(motdLines) < 1 {
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client.Send(nil, server.name, ERR_NOMOTD, client.nick, "MOTD File is missing")
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return
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}
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client.Send(nil, server.name, RPL_MOTDSTART, client.nick, fmt.Sprintf("- %s Message of the day - ", server.name))
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for _, line := range server.motdLines {
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for _, line := range motdLines {
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client.Send(nil, server.name, RPL_MOTD, client.nick, line)
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}
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client.Send(nil, server.name, RPL_ENDOFMOTD, client.nick, "End of MOTD command")
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@ -691,7 +700,7 @@ func joinHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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channel := server.channels.Get(casefoldedName)
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if channel == nil {
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if len(casefoldedName) > server.limits.ChannelLen {
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if len(casefoldedName) > server.getLimits().ChannelLen {
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client.Send(nil, server.name, ERR_NOSUCHCHANNEL, client.nick, name, "No such channel")
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continue
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}
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@ -1257,15 +1266,19 @@ func (server *Server) applyConfig(config *Config, initial bool) error {
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// sanity checks complete, start modifying server state
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server.name = config.Server.Name
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server.nameCasefolded = casefoldedName
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if initial {
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server.name = config.Server.Name
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server.nameCasefolded = casefoldedName
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}
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server.networkName = config.Network.Name
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server.configurableStateMutex.Lock()
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if config.Server.Password != "" {
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server.password = config.Server.PasswordBytes()
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} else {
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server.password = nil
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}
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server.configurableStateMutex.Unlock()
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// apply new PROXY command restrictions
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server.proxyAllowedFrom = config.Server.ProxyAllowedFrom
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@ -1372,6 +1385,7 @@ func (server *Server) applyConfig(config *Config, initial bool) error {
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}
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// set server options
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server.configurableStateMutex.Lock()
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lineLenConfig := LineLenLimits{
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Tags: config.Limits.LineLen.Tags,
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Rest: config.Limits.LineLen.Rest,
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@ -1395,13 +1409,14 @@ func (server *Server) applyConfig(config *Config, initial bool) error {
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server.accountRegistration = &accountReg
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server.channelRegistrationEnabled = config.Channels.Registration.Enabled
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server.configurableStateMutex.Lock()
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server.defaultChannelModes = ParseDefaultChannelModes(config)
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server.configurableStateMutex.Unlock()
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// set new sendqueue size
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if config.Server.MaxSendQBytes != server.MaxSendQBytes {
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server.configurableStateMutex.Lock()
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server.MaxSendQBytes = config.Server.MaxSendQBytes
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server.configurableStateMutex.Unlock()
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// update on all clients
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server.clients.ByNickMutex.RLock()
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@ -1469,8 +1484,8 @@ func (server *Server) loadMOTD(motdPath string) error {
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}
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server.configurableStateMutex.Lock()
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defer server.configurableStateMutex.Unlock()
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server.motdLines = motdLines
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server.configurableStateMutex.Unlock()
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return nil
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}
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@ -1628,8 +1643,9 @@ func awayHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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if len(msg.Params) > 0 {
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isAway = true
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text = msg.Params[0]
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if len(text) > server.limits.AwayLen {
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text = text[:server.limits.AwayLen]
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awayLen := server.getLimits().AwayLen
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if len(text) > awayLen {
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text = text[:awayLen]
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}
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}
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