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Merge pull request #200 from slingamn/issue199.2

implement #199
This commit is contained in:
Daniel Oaks 2018-02-27 19:50:09 -08:00 committed by GitHub
commit 1023f7e20e
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7 changed files with 80 additions and 30 deletions

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@ -65,6 +65,7 @@ type Client struct {
nickMaskString string // cache for nickmask string since it's used with lots of replies
nickTimer *NickTimer
operName string
preregNick string
proxiedIP net.IP // actual remote IP if using the PROXY protocol
quitMessage string
rawHostname string

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@ -61,6 +61,7 @@ func (conf *PassConfig) PasswordBytes() []byte {
type AccountConfig struct {
Registration AccountRegistrationConfig
AuthenticationEnabled bool `yaml:"authentication-enabled"`
SkipServerPassword bool `yaml:"skip-server-password"`
NickReservation NickReservationConfig `yaml:"nick-reservation"`
}

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@ -142,6 +142,30 @@ func (client *Client) SetAccountName(account string) (changed bool) {
return
}
func (client *Client) Authorized() bool {
client.stateMutex.RLock()
defer client.stateMutex.RUnlock()
return client.authorized
}
func (client *Client) SetAuthorized(authorized bool) {
client.stateMutex.Lock()
defer client.stateMutex.Unlock()
client.authorized = authorized
}
func (client *Client) PreregNick() string {
client.stateMutex.RLock()
defer client.stateMutex.RUnlock()
return client.preregNick
}
func (client *Client) SetPreregNick(preregNick string) {
client.stateMutex.Lock()
defer client.stateMutex.Unlock()
client.preregNick = preregNick
}
func (client *Client) HasMode(mode modes.Mode) bool {
client.stateMutex.RLock()
defer client.stateMutex.RUnlock()

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@ -319,6 +319,10 @@ func authenticateHandler(server *Server, client *Client, msg ircmsg.IrcMessage,
// let the SASL handler do its thing
exiting := handler(server, client, client.saslMechanism, data, rb)
if client.LoggedIntoAccount() && server.AccountConfig().SkipServerPassword {
client.SetAuthorized(true)
}
// wait 'til SASL is done before emptying the sasl vars
client.saslInProgress = false
client.saslMechanism = ""
@ -491,9 +495,8 @@ func capHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *Respo
rb.Add(nil, server.name, "CAP", client.nick, "ACK", capString)
case "END":
if !client.registered {
if !client.Registered() {
client.capState = caps.NegotiatedState
server.tryRegister(client)
}
default:
@ -1623,12 +1626,12 @@ func namesHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *Res
// NICK <nickname>
func nickHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *ResponseBuffer) bool {
if !client.authorized {
client.Quit("Bad password")
return true
if client.Registered() {
performNickChange(server, client, client, msg.Params[0], rb)
} else {
client.SetPreregNick(msg.Params[0])
}
return performNickChange(server, client, client, msg.Params[0], rb)
return false
}
// NOTICE <target>{,<target>} <message>
@ -1821,14 +1824,14 @@ func partHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *Resp
// PASS <password>
func passHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *ResponseBuffer) bool {
if client.registered {
if client.Registered() {
rb.Add(nil, server.name, ERR_ALREADYREGISTRED, client.nick, client.t("You may not reregister"))
return false
}
// if no password exists, skip checking
if len(server.password) == 0 {
client.authorized = true
client.SetAuthorized(true)
return false
}
@ -1840,7 +1843,7 @@ func passHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *Resp
return true
}
client.authorized = true
client.SetAuthorized(true)
return false
}
@ -1932,7 +1935,7 @@ func privmsgHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *R
// http://www.haproxy.org/download/1.8/doc/proxy-protocol.txt
func proxyHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *ResponseBuffer) bool {
// only allow unregistered clients to use this command
if client.registered || client.proxiedIP != nil {
if client.Registered() || client.proxiedIP != nil {
return false
}
@ -2096,7 +2099,8 @@ func sanickHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *Re
rb.Add(nil, server.name, ERR_NOSUCHNICK, client.nick, msg.Params[0], client.t("No such nick"))
return false
}
return performNickChange(server, client, target, msg.Params[1], rb)
performNickChange(server, client, target, msg.Params[1], rb)
return false
}
// SCENE <target> <message>
@ -2310,16 +2314,11 @@ func unKLineHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *R
// USER <username> * 0 <realname>
func userHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *ResponseBuffer) bool {
if client.registered {
if client.Registered() {
rb.Add(nil, server.name, ERR_ALREADYREGISTRED, client.nick, client.t("You may not reregister"))
return false
}
if !client.authorized {
client.Quit("Bad password")
return true
}
if client.username != "" && client.realname != "" {
return false
}
@ -2340,8 +2339,6 @@ func userHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *Resp
client.realname = msg.Params[3]
}
server.tryRegister(client)
return false
}
@ -2393,7 +2390,7 @@ func versionHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *R
// WEBIRC <password> <gateway> <hostname> <ip> [:flag1 flag2=x flag3]
func webircHandler(server *Server, client *Client, msg ircmsg.IrcMessage, rb *ResponseBuffer) bool {
// only allow unregistered clients to use this command
if client.registered || client.proxiedIP != nil {
if client.Registered() || client.proxiedIP != nil {
return false
}

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@ -23,6 +23,7 @@ var (
}
)
// returns whether the change succeeded or failed
func performNickChange(server *Server, client *Client, target *Client, newnick string, rb *ResponseBuffer) bool {
nickname := strings.TrimSpace(newnick)
cfnick, err := CasefoldName(nickname)
@ -38,7 +39,7 @@ func performNickChange(server *Server, client *Client, target *Client, newnick s
}
if target.Nick() == nickname {
return false
return true
}
hadNick := target.HasNick()
@ -49,7 +50,7 @@ func performNickChange(server *Server, client *Client, target *Client, newnick s
rb.Add(nil, server.name, ERR_NICKNAMEINUSE, client.nick, nickname, client.t("Nickname is already in use"))
return false
} else if err == errNicknameReserved {
client.Send(nil, server.name, ERR_NICKNAMEINUSE, client.nick, nickname, client.t("Nickname is reserved by a different account"))
rb.Add(nil, server.name, ERR_NICKNAMEINUSE, client.nick, nickname, client.t("Nickname is reserved by a different account"))
return false
} else if err != nil {
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.nick, "NICK", fmt.Sprintf(client.t("Could not set or change nickname: %s"), err.Error()))
@ -67,12 +68,11 @@ func performNickChange(server *Server, client *Client, target *Client, newnick s
}
}
if target.registered {
if target.Registered() {
client.server.monitorManager.AlertAbout(target, true)
} else {
server.tryRegister(target)
}
return false
// else: Run() will attempt registration immediately after this
return true
}
func (server *Server) RandomlyRename(client *Client) {

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@ -416,8 +416,28 @@ func (server *Server) generateMessageID() string {
//
func (server *Server) tryRegister(c *Client) {
if c.registered || !c.HasNick() || !c.HasUsername() ||
(c.capState == caps.NegotiatingState) {
if c.Registered() {
return
}
preregNick := c.PreregNick()
if preregNick == "" || !c.HasUsername() || c.capState == caps.NegotiatingState {
return
}
// client MUST send PASS (or AUTHENTICATE, if skip-server-password is set)
// before completing the other registration commands
if !c.Authorized() {
c.Quit(c.t("Bad password"))
c.destroy(false)
return
}
rb := NewResponseBuffer(c)
nickAssigned := performNickChange(server, c, c, preregNick, rb)
rb.Send()
if !nickAssigned {
c.SetPreregNick("")
return
}
@ -447,7 +467,7 @@ func (server *Server) tryRegister(c *Client) {
//TODO(dan): Look at adding last optional [<channel modes with a parameter>] parameter
c.Send(nil, server.name, RPL_MYINFO, c.nick, server.name, Ver, supportedUserModesString, supportedChannelModesString)
rb := NewResponseBuffer(c)
rb = NewResponseBuffer(c)
c.RplISupport(rb)
server.MOTD(c, rb)
rb.Send()

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@ -171,6 +171,13 @@ accounts:
# is account authentication enabled?
authentication-enabled: true
# some clients (notably Pidgin and Hexchat) offer only a single password field,
# which makes it impossible to specify a separate server password (for the PASS
# command) and SASL password. if this option is set to true, a client that
# successfully authenticates with SASL will not be required to send
# PASS as well, so it can be configured to authenticate with SASL only.
skip-server-password: false
# nick-reservation controls how, and whether, nicknames are linked to accounts
nick-reservation:
# is there any enforcement of reserved nicknames?