mirror of
https://github.com/ergochat/ergo.git
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ec48966b68
If the relay bot and the owner share an IP, legacy bots that identify users by user@host could misinterpret relayed lines as coming from the bot owner. Try to avoid this by using the bot's account cloak where applicable.
3463 lines
112 KiB
Go
3463 lines
112 KiB
Go
// Copyright (c) 2012-2014 Jeremy Latt
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// Copyright (c) 2014-2015 Edmund Huber
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// Copyright (c) 2016-2018 Daniel Oaks <daniel@danieloaks.net>
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// Copyright (c) 2017-2018 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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import (
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"bytes"
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"encoding/base64"
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"fmt"
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"net"
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"os"
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"runtime"
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"runtime/debug"
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"runtime/pprof"
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"sort"
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"strconv"
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"strings"
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"time"
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"github.com/goshuirc/irc-go/ircfmt"
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"github.com/goshuirc/irc-go/ircmsg"
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"github.com/goshuirc/irc-go/ircutils"
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"golang.org/x/crypto/bcrypt"
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"github.com/ergochat/ergo/irc/caps"
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"github.com/ergochat/ergo/irc/custime"
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"github.com/ergochat/ergo/irc/flatip"
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"github.com/ergochat/ergo/irc/history"
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"github.com/ergochat/ergo/irc/jwt"
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"github.com/ergochat/ergo/irc/modes"
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"github.com/ergochat/ergo/irc/sno"
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"github.com/ergochat/ergo/irc/utils"
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)
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// helper function to parse ACC callbacks, e.g., mailto:person@example.com, tel:16505551234
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func parseCallback(spec string, config *Config) (callbackNamespace string, callbackValue string, err error) {
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// XXX if we don't require verification, ignore any callback that was passed here
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// (to avoid confusion in the case where the ircd has no mail server configured)
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if !config.Accounts.Registration.EmailVerification.Enabled {
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callbackNamespace = "*"
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return
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}
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callback := strings.ToLower(spec)
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if colonIndex := strings.IndexByte(callback, ':'); colonIndex != -1 {
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callbackNamespace, callbackValue = callback[:colonIndex], callback[colonIndex+1:]
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} else {
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// "If a callback namespace is not ... provided, the IRC server MUST use mailto""
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callbackNamespace = "mailto"
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callbackValue = callback
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}
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if config.Accounts.Registration.EmailVerification.Enabled {
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if callbackNamespace != "mailto" {
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err = errValidEmailRequired
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} else if strings.IndexByte(callbackValue, '@') < 1 {
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err = errValidEmailRequired
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}
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}
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return
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}
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func registrationErrorToMessage(err error) (message string) {
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switch err {
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case errAccountAlreadyRegistered, errAccountAlreadyVerified, errAccountAlreadyUnregistered, errAccountAlreadyLoggedIn, errAccountCreation, errAccountMustHoldNick, errAccountBadPassphrase, errCertfpAlreadyExists, errFeatureDisabled, errAccountBadPassphrase:
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message = err.Error()
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case errLimitExceeded:
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message = `There have been too many registration attempts recently; try again later`
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case errCallbackFailed:
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message = `Could not dispatch verification email`
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default:
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// default response: let's be risk-averse about displaying internal errors
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// to the clients, especially for something as sensitive as accounts
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message = `Could not register`
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}
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return
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}
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// helper function to dispatch messages when a client successfully registers
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func sendSuccessfulRegResponse(service *ircService, client *Client, rb *ResponseBuffer) {
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details := client.Details()
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if service != nil {
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service.Notice(rb, client.t("Account created"))
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} else {
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rb.Add(nil, client.server.name, RPL_REG_SUCCESS, details.nick, details.accountName, client.t("Account created"))
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}
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client.server.snomasks.Send(sno.LocalAccounts, fmt.Sprintf(ircfmt.Unescape("Client $c[grey][$r%s$c[grey]] registered account $c[grey][$r%s$c[grey]] from IP %s"), details.nickMask, details.accountName, rb.session.IP().String()))
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sendSuccessfulAccountAuth(service, client, rb, false)
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}
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// sendSuccessfulAccountAuth means that an account auth attempt completed successfully, and is used to dispatch messages.
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func sendSuccessfulAccountAuth(service *ircService, client *Client, rb *ResponseBuffer, forSASL bool) {
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details := client.Details()
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if service != nil {
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service.Notice(rb, fmt.Sprintf(client.t("You're now logged in as %s"), details.accountName))
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} else {
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//TODO(dan): some servers send this numeric even for NickServ logins iirc? to confirm and maybe do too
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rb.Add(nil, client.server.name, RPL_LOGGEDIN, details.nick, details.nickMask, details.accountName, fmt.Sprintf(client.t("You are now logged in as %s"), details.accountName))
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if forSASL {
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rb.Add(nil, client.server.name, RPL_SASLSUCCESS, details.nick, client.t("Authentication successful"))
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}
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}
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if client.Registered() {
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// dispatch account-notify
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for friend := range client.Friends(caps.AccountNotify) {
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if friend != rb.session {
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friend.Send(nil, details.nickMask, "ACCOUNT", details.accountName)
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}
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}
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if rb.session.capabilities.Has(caps.AccountNotify) {
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rb.Add(nil, details.nickMask, "ACCOUNT", details.accountName)
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}
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client.server.sendLoginSnomask(details.nickMask, details.accountName)
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}
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// #1479: for Tor clients, replace the hostname with the always-on cloak here
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// (for normal clients, this would discard the IP-based cloak, but with Tor
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// there's no such concern)
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if rb.session.isTor {
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config := client.server.Config()
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if config.Server.Cloaks.EnabledForAlwaysOn {
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cloakedHostname := config.Server.Cloaks.ComputeAccountCloak(details.accountName)
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client.setCloakedHostname(cloakedHostname)
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if client.registered {
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client.sendChghost(details.nickMask, client.Hostname())
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}
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}
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}
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client.server.logger.Info("accounts", "client", details.nick, "logged into account", details.accountName)
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}
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func (server *Server) sendLoginSnomask(nickMask, accountName string) {
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server.snomasks.Send(sno.LocalAccounts, fmt.Sprintf(ircfmt.Unescape("Client $c[grey][$r%s$c[grey]] logged into account $c[grey][$r%s$c[grey]]"), nickMask, accountName))
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}
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// AUTHENTICATE [<mechanism>|<data>|*]
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func authenticateHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
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session := rb.session
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config := server.Config()
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details := client.Details()
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if client.isSTSOnly {
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rb.Add(nil, server.name, ERR_SASLFAIL, details.nick, client.t("SASL authentication failed"))
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return false
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}
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if details.account != "" {
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rb.Add(nil, server.name, ERR_SASLALREADY, details.nick, client.t("You're already logged into an account"))
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return false
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}
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// sasl abort
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if !config.Accounts.AuthenticationEnabled || len(msg.Params) == 1 && msg.Params[0] == "*" {
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rb.Add(nil, server.name, ERR_SASLABORTED, details.nick, client.t("SASL authentication aborted"))
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session.sasl.Clear()
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return false
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}
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// start new sasl session
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if session.sasl.mechanism == "" {
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mechanism := strings.ToUpper(msg.Params[0])
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_, mechanismIsEnabled := EnabledSaslMechanisms[mechanism]
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if mechanismIsEnabled {
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session.sasl.mechanism = mechanism
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if !config.Server.Compatibility.SendUnprefixedSasl {
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// normal behavior
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rb.Add(nil, server.name, "AUTHENTICATE", "+")
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} else {
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// gross hack: send a raw message to ensure no tags or prefix
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rb.Flush(true)
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rb.session.SendRawMessage(ircmsg.MakeMessage(nil, "", "AUTHENTICATE", "+"), true)
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}
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} else {
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rb.Add(nil, server.name, ERR_SASLFAIL, details.nick, client.t("SASL authentication failed"))
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}
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return false
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}
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// continue existing sasl session
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rawData := msg.Params[0]
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if len(rawData) > 400 {
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rb.Add(nil, server.name, ERR_SASLTOOLONG, details.nick, client.t("SASL message too long"))
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session.sasl.Clear()
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return false
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} else if len(rawData) == 400 {
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// allow 4 'continuation' lines before rejecting for length
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if len(session.sasl.value) >= 400*4 {
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rb.Add(nil, server.name, ERR_SASLFAIL, details.nick, client.t("SASL authentication failed: Passphrase too long"))
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session.sasl.Clear()
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return false
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}
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session.sasl.value += rawData
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return false
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}
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if rawData != "+" {
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session.sasl.value += rawData
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}
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var data []byte
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var err error
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if session.sasl.value != "+" {
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data, err = base64.StdEncoding.DecodeString(session.sasl.value)
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if err != nil {
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rb.Add(nil, server.name, ERR_SASLFAIL, details.nick, client.t("SASL authentication failed: Invalid b64 encoding"))
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session.sasl.Clear()
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return false
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}
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}
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// call actual handler
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handler, handlerExists := EnabledSaslMechanisms[session.sasl.mechanism]
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// like 100% not required, but it's good to be safe I guess
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if !handlerExists {
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rb.Add(nil, server.name, ERR_SASLFAIL, details.nick, client.t("SASL authentication failed"))
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session.sasl.Clear()
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return false
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}
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// let the SASL handler do its thing
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exiting := handler(server, client, session.sasl.mechanism, data, rb)
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session.sasl.Clear()
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return exiting
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}
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// AUTHENTICATE PLAIN
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func authPlainHandler(server *Server, client *Client, mechanism string, value []byte, rb *ResponseBuffer) bool {
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splitValue := bytes.Split(value, []byte{'\000'})
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// PLAIN has separate "authorization ID" (which user you want to become)
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// and "authentication ID" (whose password you want to use). the first is optional:
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// [authzid] \x00 authcid \x00 password
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var authzid, authcid string
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if len(splitValue) == 3 {
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authzid, authcid = string(splitValue[0]), string(splitValue[1])
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if authzid != "" && authcid != authzid {
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rb.Add(nil, server.name, ERR_SASLFAIL, client.Nick(), client.t("SASL authentication failed: authcid and authzid should be the same"))
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return false
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}
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} else {
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rb.Add(nil, server.name, ERR_SASLFAIL, client.Nick(), client.t("SASL authentication failed: Invalid auth blob"))
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return false
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}
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throttled, remainingTime := client.loginThrottle.Touch()
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if throttled {
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rb.Add(nil, server.name, ERR_SASLFAIL, client.Nick(), fmt.Sprintf(client.t("Please wait at least %v and try again"), remainingTime))
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return false
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}
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// see #843: strip the device ID for the benefit of clients that don't
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// distinguish user/ident from account name
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if strudelIndex := strings.IndexByte(authcid, '@'); strudelIndex != -1 {
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var deviceID string
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authcid, deviceID = authcid[:strudelIndex], authcid[strudelIndex+1:]
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if !client.registered {
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rb.session.deviceID = deviceID
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}
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}
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password := string(splitValue[2])
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err := server.accounts.AuthenticateByPassphrase(client, authcid, password)
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if err != nil {
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msg := authErrorToMessage(server, err)
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rb.Add(nil, server.name, ERR_SASLFAIL, client.Nick(), fmt.Sprintf("%s: %s", client.t("SASL authentication failed"), client.t(msg)))
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return false
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} else if !fixupNickEqualsAccount(client, rb, server.Config(), "") {
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return false
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}
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sendSuccessfulAccountAuth(nil, client, rb, true)
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return false
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}
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func authErrorToMessage(server *Server, err error) (msg string) {
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if throttled, ok := err.(*ThrottleError); ok {
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return throttled.Error()
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}
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switch err {
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case errAccountDoesNotExist, errAccountUnverified, errAccountInvalidCredentials, errAuthzidAuthcidMismatch, errNickAccountMismatch, errAccountSuspended:
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return err.Error()
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default:
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// don't expose arbitrary error messages to the user
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server.logger.Error("internal", "sasl authentication failure", err.Error())
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return "Unknown"
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}
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}
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// AUTHENTICATE EXTERNAL
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func authExternalHandler(server *Server, client *Client, mechanism string, value []byte, rb *ResponseBuffer) bool {
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if rb.session.certfp == "" {
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rb.Add(nil, server.name, ERR_SASLFAIL, client.nick, client.t("SASL authentication failed, you are not connecting with a certificate"))
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return false
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}
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// EXTERNAL doesn't carry an authentication ID (this is determined from the
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// certificate), but does carry an optional authorization ID.
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var authzid string
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var err error
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if len(value) != 0 {
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authzid, err = CasefoldName(string(value))
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if err != nil {
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err = errAuthzidAuthcidMismatch
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}
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}
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if err == nil {
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// see #843: strip the device ID for the benefit of clients that don't
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// distinguish user/ident from account name
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if strudelIndex := strings.IndexByte(authzid, '@'); strudelIndex != -1 {
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var deviceID string
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authzid, deviceID = authzid[:strudelIndex], authzid[strudelIndex+1:]
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if !client.registered {
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rb.session.deviceID = deviceID
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}
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}
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err = server.accounts.AuthenticateByCertificate(client, rb.session.certfp, rb.session.peerCerts, authzid)
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}
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if err != nil {
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msg := authErrorToMessage(server, err)
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rb.Add(nil, server.name, ERR_SASLFAIL, client.nick, fmt.Sprintf("%s: %s", client.t("SASL authentication failed"), client.t(msg)))
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return false
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} else if !fixupNickEqualsAccount(client, rb, server.Config(), "") {
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return false
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}
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sendSuccessfulAccountAuth(nil, client, rb, true)
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return false
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}
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// AWAY [<message>]
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func awayHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
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var isAway bool
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var awayMessage string
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if len(msg.Params) > 0 {
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isAway = true
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awayMessage = msg.Params[0]
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awayMessage = ircutils.TruncateUTF8Safe(awayMessage, server.Config().Limits.AwayLen)
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}
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rb.session.SetAway(awayMessage)
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if isAway {
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rb.Add(nil, server.name, RPL_NOWAWAY, client.nick, client.t("You have been marked as being away"))
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} else {
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rb.Add(nil, server.name, RPL_UNAWAY, client.nick, client.t("You are no longer marked as being away"))
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}
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dispatchAwayNotify(client, isAway, awayMessage)
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return false
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}
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func dispatchAwayNotify(client *Client, isAway bool, awayMessage string) {
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// dispatch away-notify
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details := client.Details()
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isBot := client.HasMode(modes.Bot)
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for session := range client.Friends(caps.AwayNotify) {
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if isAway {
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session.sendFromClientInternal(false, time.Time{}, "", details.nickMask, details.accountName, isBot, nil, "AWAY", awayMessage)
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} else {
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session.sendFromClientInternal(false, time.Time{}, "", details.nickMask, details.accountName, isBot, nil, "AWAY")
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}
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}
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}
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// BATCH {+,-}reference-tag type [params...]
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func batchHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
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tag := msg.Params[0]
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fail := false
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sendErrors := rb.session.batch.command != "NOTICE"
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if len(tag) == 0 {
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fail = true
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} else if tag[0] == '+' {
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if len(msg.Params) < 3 || msg.Params[1] != caps.MultilineBatchType {
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fail = true
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} else {
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err := rb.session.StartMultilineBatch(tag[1:], msg.Params[2], rb.Label, msg.ClientOnlyTags())
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fail = (err != nil)
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if !fail {
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// suppress ACK for the initial BATCH message (we'll apply the stored label later)
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rb.Label = ""
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}
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}
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} else if tag[0] == '-' {
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batch, err := rb.session.EndMultilineBatch(tag[1:])
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fail = (err != nil)
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if !fail {
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histType, err := msgCommandToHistType(batch.command)
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if err != nil {
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histType = history.Privmsg
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batch.command = "PRIVMSG"
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}
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// XXX changing the label inside a handler is a bit dodgy, but it works here
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// because there's no way we could have triggered a flush up to this point
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rb.Label = batch.responseLabel
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dispatchMessageToTarget(client, batch.tags, histType, batch.command, batch.target, batch.message, rb)
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}
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}
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if fail {
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rb.session.EndMultilineBatch("")
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if sendErrors {
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rb.Add(nil, server.name, "FAIL", "BATCH", "MULTILINE_INVALID", client.t("Invalid multiline batch"))
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}
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}
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return false
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}
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|
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// CAP <subcmd> [<caps>]
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func capHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
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details := client.Details()
|
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subCommand := strings.ToUpper(msg.Params[0])
|
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toAdd := caps.NewSet()
|
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toRemove := caps.NewSet()
|
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var capString string
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config := server.Config()
|
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supportedCaps := config.Server.supportedCaps
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if client.isSTSOnly {
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supportedCaps = stsOnlyCaps
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} else if rb.session.hideSTS {
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supportedCaps = config.Server.supportedCapsWithoutSTS
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}
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badCaps := false
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if len(msg.Params) > 1 {
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capString = msg.Params[1]
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strs := strings.Fields(capString)
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for _, str := range strs {
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remove := false
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if str[0] == '-' {
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str = str[1:]
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remove = true
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}
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capab, err := caps.NameToCapability(str)
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if err != nil || (!remove && !supportedCaps.Has(capab)) {
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badCaps = true
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} else if !remove {
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toAdd.Enable(capab)
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} else {
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toRemove.Enable(capab)
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}
|
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}
|
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}
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|
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sendCapLines := func(cset *caps.Set, values caps.Values) {
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version := rb.session.capVersion
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// we're working around two bugs:
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// 1. WeeChat 1.4 won't accept the CAP reply unless it contains the server.name source
|
|
// 2. old versions of Kiwi and The Lounge can't parse multiline CAP LS 302 (#661),
|
|
// so try as hard as possible to get the response to fit on one line.
|
|
// :server.name CAP * LS * :<tokens>
|
|
// 1 7 4
|
|
maxLen := (MaxLineLen - 2) - 1 - len(server.name) - 7 - len(subCommand) - 4
|
|
capLines := cset.Strings(version, values, maxLen)
|
|
for i, capStr := range capLines {
|
|
if version >= caps.Cap302 && i < len(capLines)-1 {
|
|
rb.Add(nil, server.name, "CAP", details.nick, subCommand, "*", capStr)
|
|
} else {
|
|
rb.Add(nil, server.name, "CAP", details.nick, subCommand, capStr)
|
|
}
|
|
}
|
|
}
|
|
|
|
switch subCommand {
|
|
case "LS":
|
|
if !client.registered {
|
|
rb.session.capState = caps.NegotiatingState
|
|
}
|
|
if 1 < len(msg.Params) {
|
|
num, err := strconv.Atoi(msg.Params[1])
|
|
newVersion := caps.Version(num)
|
|
if err == nil && rb.session.capVersion < newVersion {
|
|
rb.session.capVersion = newVersion
|
|
}
|
|
}
|
|
sendCapLines(supportedCaps, config.Server.capValues)
|
|
|
|
case "LIST":
|
|
// values not sent on LIST
|
|
sendCapLines(&rb.session.capabilities, nil)
|
|
|
|
case "REQ":
|
|
if !client.registered {
|
|
rb.session.capState = caps.NegotiatingState
|
|
}
|
|
|
|
// make sure all capabilities actually exist
|
|
// #511, #521: oragono.io/nope is a fake cap to trap bad clients who blindly request
|
|
// every offered capability. during registration, requesting it produces a quit,
|
|
// otherwise just a CAP NAK
|
|
if badCaps || (toAdd.Has(caps.Nope) && client.registered) {
|
|
rb.Add(nil, server.name, "CAP", details.nick, "NAK", capString)
|
|
return false
|
|
} else if toAdd.Has(caps.Nope) && !client.registered {
|
|
client.Quit(fmt.Sprintf(client.t("Requesting the %s client capability is forbidden"), caps.Nope.Name()), rb.session)
|
|
return true
|
|
}
|
|
|
|
rb.session.capabilities.Union(toAdd)
|
|
rb.session.capabilities.Subtract(toRemove)
|
|
rb.Add(nil, server.name, "CAP", details.nick, "ACK", capString)
|
|
|
|
case "END":
|
|
if !client.registered {
|
|
rb.session.capState = caps.NegotiatedState
|
|
}
|
|
|
|
default:
|
|
rb.Add(nil, server.name, ERR_INVALIDCAPCMD, details.nick, subCommand, client.t("Invalid CAP subcommand"))
|
|
}
|
|
return false
|
|
}
|
|
|
|
// CHATHISTORY <target> <preposition> <query> [<limit>]
|
|
// e.g., CHATHISTORY #ircv3 AFTER id=ytNBbt565yt4r3err3 10
|
|
// CHATHISTORY <target> BETWEEN <query> <query> <direction> [<limit>]
|
|
// e.g., CHATHISTORY #ircv3 BETWEEN timestamp=YYYY-MM-DDThh:mm:ss.sssZ timestamp=YYYY-MM-DDThh:mm:ss.sssZ + 100
|
|
func chathistoryHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) (exiting bool) {
|
|
var items []history.Item
|
|
var target string
|
|
var channel *Channel
|
|
var sequence history.Sequence
|
|
var err error
|
|
var listTargets bool
|
|
var targets []history.TargetListing
|
|
defer func() {
|
|
// errors are sent either without a batch, or in a draft/labeled-response batch as usual
|
|
if err == utils.ErrInvalidParams {
|
|
rb.Add(nil, server.name, "FAIL", "CHATHISTORY", "INVALID_PARAMS", msg.Params[0], client.t("Invalid parameters"))
|
|
} else if !listTargets && sequence == nil {
|
|
rb.Add(nil, server.name, "FAIL", "CHATHISTORY", "INVALID_TARGET", utils.SafeErrorParam(target), client.t("Messages could not be retrieved"))
|
|
} else if err != nil {
|
|
rb.Add(nil, server.name, "FAIL", "CHATHISTORY", "MESSAGE_ERROR", msg.Params[0], client.t("Messages could not be retrieved"))
|
|
} else {
|
|
// successful responses are sent as a chathistory or history batch
|
|
if listTargets {
|
|
batchID := rb.StartNestedBatch("draft/chathistory-targets")
|
|
defer rb.EndNestedBatch(batchID)
|
|
for _, target := range targets {
|
|
name := server.UnfoldName(target.CfName)
|
|
rb.Add(nil, server.name, "CHATHISTORY", "TARGETS", name,
|
|
target.Time.Format(IRCv3TimestampFormat))
|
|
}
|
|
} else if channel != nil {
|
|
channel.replayHistoryItems(rb, items, false)
|
|
} else {
|
|
client.replayPrivmsgHistory(rb, items, target)
|
|
}
|
|
}
|
|
}()
|
|
|
|
config := server.Config()
|
|
maxChathistoryLimit := config.History.ChathistoryMax
|
|
if maxChathistoryLimit == 0 {
|
|
return
|
|
}
|
|
preposition := strings.ToLower(msg.Params[0])
|
|
target = msg.Params[1]
|
|
listTargets = (preposition == "targets")
|
|
|
|
parseQueryParam := func(param string) (msgid string, timestamp time.Time, err error) {
|
|
if param == "*" && (preposition == "before" || preposition == "between") {
|
|
// XXX compatibility with kiwi, which as of February 2020 is
|
|
// using BEFORE * as a synonym for LATEST *
|
|
return
|
|
}
|
|
err = utils.ErrInvalidParams
|
|
pieces := strings.SplitN(param, "=", 2)
|
|
if len(pieces) < 2 {
|
|
return
|
|
}
|
|
identifier, value := strings.ToLower(pieces[0]), pieces[1]
|
|
if identifier == "msgid" {
|
|
msgid, err = value, nil
|
|
return
|
|
} else if identifier == "timestamp" {
|
|
timestamp, err = time.Parse(IRCv3TimestampFormat, value)
|
|
return
|
|
}
|
|
return
|
|
}
|
|
|
|
parseHistoryLimit := func(paramIndex int) (limit int) {
|
|
if len(msg.Params) < (paramIndex + 1) {
|
|
return maxChathistoryLimit
|
|
}
|
|
limit, err := strconv.Atoi(msg.Params[paramIndex])
|
|
if err != nil || limit == 0 || limit > maxChathistoryLimit {
|
|
limit = maxChathistoryLimit
|
|
}
|
|
return
|
|
}
|
|
|
|
roundUp := func(endpoint time.Time) (result time.Time) {
|
|
return endpoint.Truncate(time.Millisecond).Add(time.Millisecond)
|
|
}
|
|
|
|
paramPos := 2
|
|
var start, end history.Selector
|
|
var limit int
|
|
switch preposition {
|
|
case "targets":
|
|
// use the same selector parsing as BETWEEN,
|
|
// except that we have no target so we have one fewer parameter
|
|
paramPos = 1
|
|
fallthrough
|
|
case "between":
|
|
start.Msgid, start.Time, err = parseQueryParam(msg.Params[paramPos])
|
|
if err != nil {
|
|
return
|
|
}
|
|
end.Msgid, end.Time, err = parseQueryParam(msg.Params[paramPos+1])
|
|
if err != nil {
|
|
return
|
|
}
|
|
// XXX preserve the ordering of the two parameters, since we might be going backwards,
|
|
// but round up the chronologically first one, whichever it is, to make it exclusive
|
|
if !start.Time.IsZero() && !end.Time.IsZero() {
|
|
if start.Time.Before(end.Time) {
|
|
start.Time = roundUp(start.Time)
|
|
} else {
|
|
end.Time = roundUp(end.Time)
|
|
}
|
|
}
|
|
limit = parseHistoryLimit(paramPos + 2)
|
|
case "before", "after", "around":
|
|
start.Msgid, start.Time, err = parseQueryParam(msg.Params[2])
|
|
if err != nil {
|
|
return
|
|
}
|
|
if preposition == "after" && !start.Time.IsZero() {
|
|
start.Time = roundUp(start.Time)
|
|
}
|
|
if preposition == "before" {
|
|
end = start
|
|
start = history.Selector{}
|
|
}
|
|
limit = parseHistoryLimit(3)
|
|
case "latest":
|
|
if msg.Params[2] != "*" {
|
|
end.Msgid, end.Time, err = parseQueryParam(msg.Params[2])
|
|
if err != nil {
|
|
return
|
|
}
|
|
if !end.Time.IsZero() {
|
|
end.Time = roundUp(end.Time)
|
|
}
|
|
start.Time = time.Now().UTC()
|
|
}
|
|
limit = parseHistoryLimit(3)
|
|
default:
|
|
err = utils.ErrInvalidParams
|
|
return
|
|
}
|
|
|
|
if listTargets {
|
|
targets, err = client.listTargets(start, end, limit)
|
|
} else {
|
|
channel, sequence, err = server.GetHistorySequence(nil, client, target)
|
|
if err != nil || sequence == nil {
|
|
return
|
|
}
|
|
if preposition == "around" {
|
|
items, err = sequence.Around(start, limit)
|
|
} else {
|
|
items, err = sequence.Between(start, end, limit)
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
// DEBUG <subcmd>
|
|
func debugHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
param := strings.ToUpper(msg.Params[0])
|
|
|
|
switch param {
|
|
case "GCSTATS":
|
|
stats := debug.GCStats{
|
|
Pause: make([]time.Duration, 10),
|
|
PauseQuantiles: make([]time.Duration, 5),
|
|
}
|
|
debug.ReadGCStats(&stats)
|
|
|
|
rb.Notice(fmt.Sprintf("last GC: %s", stats.LastGC.Format(time.RFC1123)))
|
|
rb.Notice(fmt.Sprintf("num GC: %d", stats.NumGC))
|
|
rb.Notice(fmt.Sprintf("pause total: %s", stats.PauseTotal))
|
|
rb.Notice(fmt.Sprintf("pause quantiles min%%: %s", stats.PauseQuantiles[0]))
|
|
rb.Notice(fmt.Sprintf("pause quantiles 25%%: %s", stats.PauseQuantiles[1]))
|
|
rb.Notice(fmt.Sprintf("pause quantiles 50%%: %s", stats.PauseQuantiles[2]))
|
|
rb.Notice(fmt.Sprintf("pause quantiles 75%%: %s", stats.PauseQuantiles[3]))
|
|
rb.Notice(fmt.Sprintf("pause quantiles max%%: %s", stats.PauseQuantiles[4]))
|
|
|
|
case "NUMGOROUTINE":
|
|
count := runtime.NumGoroutine()
|
|
rb.Notice(fmt.Sprintf("num goroutines: %d", count))
|
|
|
|
case "PROFILEHEAP":
|
|
profFile := server.Config().getOutputPath("ergo.mprof")
|
|
file, err := os.Create(profFile)
|
|
if err != nil {
|
|
rb.Notice(fmt.Sprintf("error: %s", err))
|
|
break
|
|
}
|
|
defer file.Close()
|
|
pprof.Lookup("heap").WriteTo(file, 0)
|
|
rb.Notice(fmt.Sprintf("written to %s", profFile))
|
|
|
|
case "STARTCPUPROFILE":
|
|
profFile := server.Config().getOutputPath("ergo.prof")
|
|
file, err := os.Create(profFile)
|
|
if err != nil {
|
|
rb.Notice(fmt.Sprintf("error: %s", err))
|
|
break
|
|
}
|
|
if err := pprof.StartCPUProfile(file); err != nil {
|
|
defer file.Close()
|
|
rb.Notice(fmt.Sprintf("error: %s", err))
|
|
break
|
|
}
|
|
|
|
rb.Notice(fmt.Sprintf("CPU profile writing to %s", profFile))
|
|
|
|
case "STOPCPUPROFILE":
|
|
pprof.StopCPUProfile()
|
|
rb.Notice(fmt.Sprintf("CPU profiling stopped"))
|
|
|
|
case "CRASHSERVER":
|
|
code := utils.ConfirmationCode(server.name, server.ctime)
|
|
if len(msg.Params) == 1 || msg.Params[1] != code {
|
|
rb.Notice(fmt.Sprintf(client.t("To confirm, run this command: %s"), fmt.Sprintf("/DEBUG CRASHSERVER %s", code)))
|
|
return false
|
|
}
|
|
server.logger.Error("server", fmt.Sprintf("DEBUG CRASHSERVER executed by operator %s", client.Oper().Name))
|
|
go func() {
|
|
// intentional nil dereference on a new goroutine, bypassing recover-from-errors
|
|
var i, j *int
|
|
*i = *j
|
|
}()
|
|
|
|
default:
|
|
rb.Notice(client.t("Unrecognized DEBUG subcommand"))
|
|
}
|
|
return false
|
|
}
|
|
|
|
func defconHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if len(msg.Params) > 0 {
|
|
level, err := strconv.Atoi(msg.Params[0])
|
|
if err == nil && 1 <= level && level <= 5 {
|
|
server.SetDefcon(uint32(level))
|
|
server.snomasks.Send(sno.LocalAnnouncements, fmt.Sprintf("%s [%s] set DEFCON level to %d", client.Nick(), client.Oper().Name, level))
|
|
} else {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.Nick(), msg.Command, client.t("Invalid DEFCON parameter"))
|
|
return false
|
|
}
|
|
}
|
|
rb.Notice(fmt.Sprintf(client.t("Current DEFCON level is %d"), server.Defcon()))
|
|
return false
|
|
}
|
|
|
|
// helper for parsing the reason args to DLINE and KLINE
|
|
func getReasonsFromParams(params []string, currentArg int) (reason, operReason string) {
|
|
reason = "No reason given"
|
|
operReason = ""
|
|
if len(params) > currentArg {
|
|
reasons := strings.SplitN(strings.Join(params[currentArg:], " "), "|", 2)
|
|
if len(reasons) == 1 {
|
|
reason = strings.TrimSpace(reasons[0])
|
|
} else if len(reasons) == 2 {
|
|
reason = strings.TrimSpace(reasons[0])
|
|
operReason = strings.TrimSpace(reasons[1])
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
func formatBanForListing(client *Client, key string, info IPBanInfo) string {
|
|
desc := info.Reason
|
|
if info.OperReason != "" && info.OperReason != info.Reason {
|
|
desc = fmt.Sprintf("%s | %s", info.Reason, info.OperReason)
|
|
}
|
|
if info.Duration != 0 {
|
|
desc = fmt.Sprintf("%s [%s]", desc, info.TimeLeft())
|
|
}
|
|
banType := "Ban"
|
|
if info.RequireSASL {
|
|
banType = "SASL required"
|
|
}
|
|
return fmt.Sprintf(client.t("%[1]s - %[2]s - added by %[3]s - %[4]s"), banType, key, info.OperName, desc)
|
|
}
|
|
|
|
// DLINE [ANDKILL] [MYSELF] [duration] <ip>/<net> [ON <server>] [reason [| oper reason]]
|
|
// DLINE LIST
|
|
func dlineHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
// check oper permissions
|
|
oper := client.Oper()
|
|
if !oper.HasRoleCapab("ban") {
|
|
rb.Add(nil, server.name, ERR_NOPRIVS, client.nick, msg.Command, client.t("Insufficient oper privs"))
|
|
return false
|
|
}
|
|
|
|
currentArg := 0
|
|
|
|
// if they say LIST, we just list the current dlines
|
|
if len(msg.Params) == currentArg+1 && strings.ToLower(msg.Params[currentArg]) == "list" {
|
|
bans := server.dlines.AllBans()
|
|
|
|
if len(bans) == 0 {
|
|
rb.Notice(client.t("No DLINEs have been set!"))
|
|
}
|
|
|
|
for key, info := range bans {
|
|
client.Notice(formatBanForListing(client, key, info))
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// when setting a ban, if they say "ANDKILL" we should also kill all users who match it
|
|
var andKill bool
|
|
if len(msg.Params) > currentArg+1 && strings.ToLower(msg.Params[currentArg]) == "andkill" {
|
|
andKill = true
|
|
currentArg++
|
|
}
|
|
|
|
// when setting a ban that covers the oper's current connection, we require them to say
|
|
// "DLINE MYSELF" so that we're sure they really mean it.
|
|
var dlineMyself bool
|
|
if len(msg.Params) > currentArg+1 && strings.ToLower(msg.Params[currentArg]) == "myself" {
|
|
dlineMyself = true
|
|
currentArg++
|
|
}
|
|
|
|
// duration
|
|
duration, err := custime.ParseDuration(msg.Params[currentArg])
|
|
if err != nil {
|
|
duration = 0
|
|
} else {
|
|
currentArg++
|
|
}
|
|
|
|
// get host
|
|
if len(msg.Params) < currentArg+1 {
|
|
rb.Add(nil, server.name, ERR_NEEDMOREPARAMS, client.nick, msg.Command, client.t("Not enough parameters"))
|
|
return false
|
|
}
|
|
hostString := msg.Params[currentArg]
|
|
currentArg++
|
|
|
|
// check host
|
|
hostNet, err := utils.NormalizedNetFromString(hostString)
|
|
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.nick, msg.Command, client.t("Could not parse IP address or CIDR network"))
|
|
return false
|
|
}
|
|
|
|
if !dlineMyself && hostNet.Contains(rb.session.IP()) {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.nick, msg.Command, client.t("This ban matches you. To DLINE yourself, you must use the command: /DLINE MYSELF <arguments>"))
|
|
return false
|
|
}
|
|
|
|
// check remote
|
|
if len(msg.Params) > currentArg && msg.Params[currentArg] == "ON" {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.nick, msg.Command, client.t("Remote servers not yet supported"))
|
|
return false
|
|
}
|
|
|
|
// get comment(s)
|
|
reason, operReason := getReasonsFromParams(msg.Params, currentArg)
|
|
|
|
operName := oper.Name
|
|
if operName == "" {
|
|
operName = server.name
|
|
}
|
|
|
|
err = server.dlines.AddNetwork(flatip.FromNetIPNet(hostNet), duration, false, reason, operReason, operName)
|
|
|
|
if err != nil {
|
|
rb.Notice(fmt.Sprintf(client.t("Could not successfully save new D-LINE: %s"), err.Error()))
|
|
return false
|
|
}
|
|
|
|
var snoDescription string
|
|
hostString = utils.NetToNormalizedString(hostNet)
|
|
if duration != 0 {
|
|
rb.Notice(fmt.Sprintf(client.t("Added temporary (%[1]s) D-Line for %[2]s"), duration.String(), hostString))
|
|
snoDescription = fmt.Sprintf(ircfmt.Unescape("%s [%s]$r added temporary (%s) D-Line for %s"), client.nick, operName, duration.String(), hostString)
|
|
} else {
|
|
rb.Notice(fmt.Sprintf(client.t("Added D-Line for %s"), hostString))
|
|
snoDescription = fmt.Sprintf(ircfmt.Unescape("%s [%s]$r added D-Line for %s"), client.nick, operName, hostString)
|
|
}
|
|
server.snomasks.Send(sno.LocalXline, snoDescription)
|
|
|
|
var killClient bool
|
|
if andKill {
|
|
var sessionsToKill []*Session
|
|
var killedClientNicks []string
|
|
|
|
for _, mcl := range server.clients.AllClients() {
|
|
nickKilled := false
|
|
for _, session := range mcl.Sessions() {
|
|
if hostNet.Contains(session.IP()) {
|
|
sessionsToKill = append(sessionsToKill, session)
|
|
if !nickKilled {
|
|
killedClientNicks = append(killedClientNicks, mcl.Nick())
|
|
nickKilled = true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for _, session := range sessionsToKill {
|
|
mcl := session.client
|
|
mcl.Quit(fmt.Sprintf(mcl.t("You have been banned from this server (%s)"), reason), session)
|
|
if session == rb.session {
|
|
killClient = true
|
|
} else {
|
|
// if mcl == client, we kill them below
|
|
mcl.destroy(session)
|
|
}
|
|
}
|
|
|
|
// send snomask
|
|
sort.Strings(killedClientNicks)
|
|
server.snomasks.Send(sno.LocalKills, fmt.Sprintf(ircfmt.Unescape("%s [%s] killed %d clients with a DLINE $c[grey][$r%s$c[grey]]"), client.nick, operName, len(killedClientNicks), strings.Join(killedClientNicks, ", ")))
|
|
}
|
|
|
|
return killClient
|
|
}
|
|
|
|
// EXTJWT <target> [service_name]
|
|
func extjwtHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
accountName := client.AccountName()
|
|
if accountName == "*" {
|
|
accountName = ""
|
|
}
|
|
|
|
claims := jwt.MapClaims{
|
|
"iss": server.name,
|
|
"sub": client.Nick(),
|
|
"account": accountName,
|
|
"umodes": []string{},
|
|
}
|
|
|
|
if msg.Params[0] != "*" {
|
|
channel := server.channels.Get(msg.Params[0])
|
|
if channel == nil {
|
|
rb.Add(nil, server.name, "FAIL", "EXTJWT", "NO_SUCH_CHANNEL", client.t("No such channel"))
|
|
return false
|
|
}
|
|
|
|
claims["channel"] = channel.Name()
|
|
claims["joined"] = 0
|
|
claims["cmodes"] = []string{}
|
|
if present, joinTimeSecs, cModes := channel.ClientStatus(client); present {
|
|
claims["joined"] = joinTimeSecs
|
|
var modeStrings []string
|
|
for _, cMode := range cModes {
|
|
modeStrings = append(modeStrings, string(cMode))
|
|
}
|
|
claims["cmodes"] = modeStrings
|
|
}
|
|
}
|
|
|
|
config := server.Config()
|
|
var serviceName string
|
|
var sConfig jwt.JwtServiceConfig
|
|
if 1 < len(msg.Params) {
|
|
serviceName = strings.ToLower(msg.Params[1])
|
|
sConfig = config.Extjwt.Services[serviceName]
|
|
} else {
|
|
serviceName = "*"
|
|
sConfig = config.Extjwt.Default
|
|
}
|
|
|
|
if !sConfig.Enabled() {
|
|
rb.Add(nil, server.name, "FAIL", "EXTJWT", "NO_SUCH_SERVICE", client.t("No such service"))
|
|
return false
|
|
}
|
|
|
|
tokenString, err := sConfig.Sign(claims)
|
|
|
|
if err == nil {
|
|
maxTokenLength := 400
|
|
|
|
for maxTokenLength < len(tokenString) {
|
|
rb.Add(nil, server.name, "EXTJWT", msg.Params[0], serviceName, "*", tokenString[:maxTokenLength])
|
|
tokenString = tokenString[maxTokenLength:]
|
|
}
|
|
rb.Add(nil, server.name, "EXTJWT", msg.Params[0], serviceName, tokenString)
|
|
} else {
|
|
rb.Add(nil, server.name, "FAIL", "EXTJWT", "UNKNOWN_ERROR", client.t("Could not generate EXTJWT token"))
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// HELP [<query>]
|
|
// HELPOP [<query>]
|
|
func helpHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if len(msg.Params) == 0 {
|
|
client.sendHelp("HELPOP", client.t(`HELPOP <argument>
|
|
|
|
Get an explanation of <argument>, or "index" for a list of help topics.`), rb)
|
|
return false
|
|
}
|
|
|
|
argument := strings.ToLower(strings.TrimSpace(msg.Params[0]))
|
|
|
|
// handle index
|
|
if argument == "index" {
|
|
client.sendHelp("HELP", server.helpIndexManager.GetIndex(client.Languages(), client.HasMode(modes.Operator)), rb)
|
|
return false
|
|
}
|
|
|
|
helpHandler, exists := Help[argument]
|
|
|
|
if exists && (!helpHandler.oper || (helpHandler.oper && client.HasMode(modes.Operator))) {
|
|
if helpHandler.textGenerator != nil {
|
|
client.sendHelp(argument, helpHandler.textGenerator(client), rb)
|
|
} else {
|
|
client.sendHelp(argument, client.t(helpHandler.text), rb)
|
|
}
|
|
} else {
|
|
rb.Add(nil, server.name, ERR_HELPNOTFOUND, client.Nick(), strings.ToUpper(utils.SafeErrorParam(argument)), client.t("Help not found"))
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// HISTORY <target> [<limit>]
|
|
// e.g., HISTORY #ubuntu 10
|
|
// HISTORY alice 15
|
|
// HISTORY #darwin 1h
|
|
func historyHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
config := server.Config()
|
|
if !config.History.Enabled {
|
|
rb.Notice(client.t("This command has been disabled by the server administrators"))
|
|
return false
|
|
}
|
|
|
|
items, channel, err := easySelectHistory(server, client, msg.Params)
|
|
|
|
if err == errNoSuchChannel {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.Nick(), utils.SafeErrorParam(msg.Params[0]), client.t("No such channel"))
|
|
return false
|
|
} else if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.Nick(), msg.Command, client.t("Could not retrieve history"))
|
|
return false
|
|
}
|
|
|
|
if len(items) != 0 {
|
|
if channel != nil {
|
|
channel.replayHistoryItems(rb, items, false)
|
|
} else {
|
|
client.replayPrivmsgHistory(rb, items, "")
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// INFO
|
|
func infoHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
nick := client.Nick()
|
|
// we do the below so that the human-readable lines in info can be translated.
|
|
for _, line := range infoString1 {
|
|
rb.Add(nil, server.name, RPL_INFO, nick, line)
|
|
}
|
|
rb.Add(nil, server.name, RPL_INFO, nick, fmt.Sprintf(client.t("This is Ergo version %s."), SemVer))
|
|
if Commit != "" {
|
|
rb.Add(nil, server.name, RPL_INFO, nick, fmt.Sprintf(client.t("It was built from git hash %s."), Commit))
|
|
}
|
|
rb.Add(nil, server.name, RPL_INFO, nick, fmt.Sprintf(client.t("It was compiled using %s."), runtime.Version()))
|
|
rb.Add(nil, server.name, RPL_INFO, nick, "")
|
|
rb.Add(nil, server.name, RPL_INFO, nick, client.t("Ergo is released under the MIT license."))
|
|
rb.Add(nil, server.name, RPL_INFO, nick, "")
|
|
rb.Add(nil, server.name, RPL_INFO, nick, client.t("Core Developers:"))
|
|
for _, line := range infoString2 {
|
|
rb.Add(nil, server.name, RPL_INFO, nick, line)
|
|
}
|
|
rb.Add(nil, server.name, RPL_INFO, nick, client.t("Former Core Developers:"))
|
|
for _, line := range infoString3 {
|
|
rb.Add(nil, server.name, RPL_INFO, nick, line)
|
|
}
|
|
rb.Add(nil, server.name, RPL_INFO, nick, client.t("For a more complete list of contributors, see our changelog:"))
|
|
rb.Add(nil, server.name, RPL_INFO, nick, " https://github.com/ergochat/ergo/blob/master/CHANGELOG.md")
|
|
rb.Add(nil, server.name, RPL_INFO, nick, "")
|
|
// show translators for languages other than good ole' regular English
|
|
tlines := server.Languages().Translators()
|
|
if 0 < len(tlines) {
|
|
rb.Add(nil, server.name, RPL_INFO, nick, client.t("Translators:"))
|
|
for _, line := range tlines {
|
|
rb.Add(nil, server.name, RPL_INFO, nick, " "+strings.Replace(line, "\n", ", ", -1))
|
|
}
|
|
rb.Add(nil, server.name, RPL_INFO, nick, "")
|
|
}
|
|
rb.Add(nil, server.name, RPL_ENDOFINFO, nick, client.t("End of /INFO"))
|
|
return false
|
|
}
|
|
|
|
// INVITE <nickname> <channel>
|
|
// UNINVITE <nickname> <channel>
|
|
func inviteHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
invite := msg.Command == "INVITE"
|
|
nickname := msg.Params[0]
|
|
channelName := msg.Params[1]
|
|
|
|
target := server.clients.Get(nickname)
|
|
if target == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHNICK, client.Nick(), utils.SafeErrorParam(nickname), client.t("No such nick"))
|
|
return false
|
|
}
|
|
|
|
channel := server.channels.Get(channelName)
|
|
if channel == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.Nick(), utils.SafeErrorParam(channelName), client.t("No such channel"))
|
|
return false
|
|
}
|
|
|
|
if invite {
|
|
channel.Invite(target, client, rb)
|
|
} else {
|
|
channel.Uninvite(target, client, rb)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// ISON <nick>{ <nick>}
|
|
func isonHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
var nicks = msg.Params
|
|
|
|
ison := make([]string, 0, len(msg.Params))
|
|
for _, nick := range nicks {
|
|
currentNick := server.getCurrentNick(nick)
|
|
if currentNick != "" {
|
|
ison = append(ison, currentNick)
|
|
}
|
|
}
|
|
|
|
rb.Add(nil, server.name, RPL_ISON, client.nick, strings.Join(ison, " "))
|
|
return false
|
|
}
|
|
|
|
// JOIN <channel>{,<channel>} [<key>{,<key>}]
|
|
func joinHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
// #1417: allow `JOIN 0` with a confirmation code
|
|
if msg.Params[0] == "0" {
|
|
expectedCode := utils.ConfirmationCode("", rb.session.ctime)
|
|
if len(msg.Params) == 1 || msg.Params[1] != expectedCode {
|
|
rb.Notice(fmt.Sprintf(client.t("Warning: /JOIN 0 will remove you from all channels. To confirm, type: /JOIN 0 %s"), expectedCode))
|
|
} else {
|
|
for _, channel := range client.Channels() {
|
|
channel.Part(client, "", rb)
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// handle regular JOINs
|
|
channels := strings.Split(msg.Params[0], ",")
|
|
var keys []string
|
|
if len(msg.Params) > 1 {
|
|
keys = strings.Split(msg.Params[1], ",")
|
|
}
|
|
|
|
for i, name := range channels {
|
|
if name == "" {
|
|
continue // #679
|
|
}
|
|
var key string
|
|
if len(keys) > i {
|
|
key = keys[i]
|
|
}
|
|
err, forward := server.channels.Join(client, name, key, false, rb)
|
|
if err != nil {
|
|
if forward != "" {
|
|
rb.Add(nil, server.name, ERR_LINKCHANNEL, client.Nick(), utils.SafeErrorParam(name), forward, client.t("Forwarding to another channel"))
|
|
name = forward
|
|
err, _ = server.channels.Join(client, name, key, false, rb)
|
|
}
|
|
if err != nil {
|
|
sendJoinError(client, name, rb, err)
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func sendJoinError(client *Client, name string, rb *ResponseBuffer, err error) {
|
|
var code, errMsg, forbiddingMode string
|
|
switch err {
|
|
case errInsufficientPrivs:
|
|
code, errMsg = ERR_NOSUCHCHANNEL, `Only server operators can create new channels`
|
|
case errConfusableIdentifier:
|
|
code, errMsg = ERR_NOSUCHCHANNEL, `That channel name is too close to the name of another channel`
|
|
case errChannelPurged:
|
|
code, errMsg = ERR_NOSUCHCHANNEL, err.Error()
|
|
case errTooManyChannels:
|
|
code, errMsg = ERR_TOOMANYCHANNELS, `You have joined too many channels`
|
|
case errLimitExceeded:
|
|
code, forbiddingMode = ERR_CHANNELISFULL, "l"
|
|
case errWrongChannelKey:
|
|
code, forbiddingMode = ERR_BADCHANNELKEY, "k"
|
|
case errInviteOnly:
|
|
code, forbiddingMode = ERR_INVITEONLYCHAN, "i"
|
|
case errBanned:
|
|
code, forbiddingMode = ERR_BANNEDFROMCHAN, "b"
|
|
case errRegisteredOnly:
|
|
code, errMsg = ERR_NEEDREGGEDNICK, `You must be registered to join that channel`
|
|
default:
|
|
code, errMsg = ERR_NOSUCHCHANNEL, `No such channel`
|
|
}
|
|
if forbiddingMode != "" {
|
|
errMsg = fmt.Sprintf(client.t("Cannot join channel (+%s)"), forbiddingMode)
|
|
} else {
|
|
errMsg = client.t(errMsg)
|
|
}
|
|
rb.Add(nil, client.server.name, code, client.Nick(), utils.SafeErrorParam(name), errMsg)
|
|
}
|
|
|
|
// SAJOIN [nick] #channel{,#channel}
|
|
func sajoinHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
var target *Client
|
|
var channelString string
|
|
if strings.HasPrefix(msg.Params[0], "#") {
|
|
target = client
|
|
channelString = msg.Params[0]
|
|
} else {
|
|
if len(msg.Params) == 1 {
|
|
rb.Add(nil, server.name, ERR_NEEDMOREPARAMS, client.Nick(), "SAJOIN", client.t("Not enough parameters"))
|
|
return false
|
|
} else {
|
|
target = server.clients.Get(msg.Params[0])
|
|
if target == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHNICK, client.Nick(), utils.SafeErrorParam(msg.Params[0]), "No such nick")
|
|
return false
|
|
}
|
|
channelString = msg.Params[1]
|
|
}
|
|
}
|
|
|
|
message := fmt.Sprintf("Operator %s ran SAJOIN %s", client.Oper().Name, strings.Join(msg.Params, " "))
|
|
server.snomasks.Send(sno.LocalOpers, message)
|
|
server.logger.Info("opers", message)
|
|
|
|
channels := strings.Split(channelString, ",")
|
|
for _, chname := range channels {
|
|
err, _ := server.channels.Join(target, chname, "", true, rb)
|
|
if err != nil {
|
|
sendJoinError(client, chname, rb, err)
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// KICK <channel>{,<channel>} <user>{,<user>} [<comment>]
|
|
func kickHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
hasPrivs := client.HasRoleCapabs("samode")
|
|
channels := strings.Split(msg.Params[0], ",")
|
|
users := strings.Split(msg.Params[1], ",")
|
|
if (len(channels) != len(users)) && (len(users) != 1) {
|
|
rb.Add(nil, server.name, ERR_NEEDMOREPARAMS, client.nick, "KICK", client.t("Not enough parameters"))
|
|
return false
|
|
}
|
|
|
|
type kickCmd struct {
|
|
channel string
|
|
nick string
|
|
}
|
|
kicks := make([]kickCmd, 0, len(channels))
|
|
for index, channel := range channels {
|
|
if channel == "" {
|
|
continue // #679
|
|
}
|
|
if len(users) == 1 {
|
|
kicks = append(kicks, kickCmd{channel, users[0]})
|
|
} else {
|
|
kicks = append(kicks, kickCmd{channel, users[index]})
|
|
}
|
|
}
|
|
|
|
var comment string
|
|
if len(msg.Params) > 2 {
|
|
comment = msg.Params[2]
|
|
}
|
|
for _, kick := range kicks {
|
|
channel := server.channels.Get(kick.channel)
|
|
if channel == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.nick, utils.SafeErrorParam(kick.channel), client.t("No such channel"))
|
|
continue
|
|
}
|
|
|
|
target := server.clients.Get(kick.nick)
|
|
if target == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHNICK, client.nick, utils.SafeErrorParam(kick.nick), client.t("No such nick"))
|
|
continue
|
|
}
|
|
|
|
if comment == "" {
|
|
comment = kick.nick
|
|
}
|
|
channel.Kick(client, target, comment, rb, hasPrivs)
|
|
}
|
|
return false
|
|
}
|
|
|
|
// KILL <nickname> <comment>
|
|
func killHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
nickname := msg.Params[0]
|
|
comment := "<no reason supplied>"
|
|
if len(msg.Params) > 1 {
|
|
comment = msg.Params[1]
|
|
}
|
|
|
|
target := server.clients.Get(nickname)
|
|
if target == nil {
|
|
rb.Add(nil, client.server.name, ERR_NOSUCHNICK, client.Nick(), utils.SafeErrorParam(nickname), client.t("No such nick"))
|
|
return false
|
|
} else if target.AlwaysOn() {
|
|
rb.Add(nil, client.server.name, ERR_UNKNOWNERROR, client.Nick(), "KILL", fmt.Sprintf(client.t("Client %s is always-on and cannot be fully removed by /KILL; consider /NS SUSPEND instead"), target.Nick()))
|
|
}
|
|
|
|
quitMsg := fmt.Sprintf("Killed (%s (%s))", client.nick, comment)
|
|
|
|
server.snomasks.Send(sno.LocalKills, fmt.Sprintf(ircfmt.Unescape("%s$r was killed by %s $c[grey][$r%s$c[grey]]"), target.nick, client.nick, comment))
|
|
|
|
target.Quit(quitMsg, nil)
|
|
target.destroy(nil)
|
|
return false
|
|
}
|
|
|
|
// KLINE [ANDKILL] [MYSELF] [duration] <mask> [ON <server>] [reason [| oper reason]]
|
|
// KLINE LIST
|
|
func klineHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
details := client.Details()
|
|
// check oper permissions
|
|
oper := client.Oper()
|
|
if !oper.HasRoleCapab("ban") {
|
|
rb.Add(nil, server.name, ERR_NOPRIVS, details.nick, msg.Command, client.t("Insufficient oper privs"))
|
|
return false
|
|
}
|
|
|
|
currentArg := 0
|
|
|
|
// if they say LIST, we just list the current klines
|
|
if len(msg.Params) == currentArg+1 && strings.ToLower(msg.Params[currentArg]) == "list" {
|
|
bans := server.klines.AllBans()
|
|
|
|
if len(bans) == 0 {
|
|
client.Notice("No KLINEs have been set!")
|
|
}
|
|
|
|
for key, info := range bans {
|
|
client.Notice(formatBanForListing(client, key, info))
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// when setting a ban, if they say "ANDKILL" we should also kill all users who match it
|
|
var andKill bool
|
|
if len(msg.Params) > currentArg+1 && strings.ToLower(msg.Params[currentArg]) == "andkill" {
|
|
andKill = true
|
|
currentArg++
|
|
}
|
|
|
|
// when setting a ban that covers the oper's current connection, we require them to say
|
|
// "KLINE MYSELF" so that we're sure they really mean it.
|
|
var klineMyself bool
|
|
if len(msg.Params) > currentArg+1 && strings.ToLower(msg.Params[currentArg]) == "myself" {
|
|
klineMyself = true
|
|
currentArg++
|
|
}
|
|
|
|
// duration
|
|
duration, err := custime.ParseDuration(msg.Params[currentArg])
|
|
if err != nil {
|
|
duration = 0
|
|
} else {
|
|
currentArg++
|
|
}
|
|
|
|
// get mask
|
|
if len(msg.Params) < currentArg+1 {
|
|
rb.Add(nil, server.name, ERR_NEEDMOREPARAMS, details.nick, msg.Command, client.t("Not enough parameters"))
|
|
return false
|
|
}
|
|
mask := msg.Params[currentArg]
|
|
currentArg++
|
|
|
|
// check mask
|
|
mask, err = CanonicalizeMaskWildcard(mask)
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, details.nick, msg.Command, client.t("Erroneous nickname"))
|
|
return false
|
|
}
|
|
|
|
matcher, err := utils.CompileGlob(mask, false)
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, details.nick, msg.Command, client.t("Erroneous nickname"))
|
|
return false
|
|
}
|
|
|
|
for _, clientMask := range client.AllNickmasks() {
|
|
if !klineMyself && matcher.MatchString(clientMask) {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, details.nick, msg.Command, client.t("This ban matches you. To KLINE yourself, you must use the command: /KLINE MYSELF <arguments>"))
|
|
return false
|
|
}
|
|
}
|
|
|
|
// check remote
|
|
if len(msg.Params) > currentArg && msg.Params[currentArg] == "ON" {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, details.nick, msg.Command, client.t("Remote servers not yet supported"))
|
|
return false
|
|
}
|
|
|
|
// get oper name
|
|
operName := oper.Name
|
|
if operName == "" {
|
|
operName = server.name
|
|
}
|
|
|
|
// get comment(s)
|
|
reason, operReason := getReasonsFromParams(msg.Params, currentArg)
|
|
|
|
err = server.klines.AddMask(mask, duration, reason, operReason, operName)
|
|
if err != nil {
|
|
rb.Notice(fmt.Sprintf(client.t("Could not successfully save new K-LINE: %s"), err.Error()))
|
|
return false
|
|
}
|
|
|
|
var snoDescription string
|
|
if duration != 0 {
|
|
rb.Notice(fmt.Sprintf(client.t("Added temporary (%[1]s) K-Line for %[2]s"), duration.String(), mask))
|
|
snoDescription = fmt.Sprintf(ircfmt.Unescape("%s [%s]$r added temporary (%s) K-Line for %s"), details.nick, operName, duration.String(), mask)
|
|
} else {
|
|
rb.Notice(fmt.Sprintf(client.t("Added K-Line for %s"), mask))
|
|
snoDescription = fmt.Sprintf(ircfmt.Unescape("%s [%s]$r added K-Line for %s"), details.nick, operName, mask)
|
|
}
|
|
server.snomasks.Send(sno.LocalXline, snoDescription)
|
|
|
|
var killClient bool
|
|
if andKill {
|
|
var clientsToKill []*Client
|
|
var killedClientNicks []string
|
|
|
|
for _, mcl := range server.clients.AllClients() {
|
|
for _, clientMask := range mcl.AllNickmasks() {
|
|
if matcher.MatchString(clientMask) {
|
|
clientsToKill = append(clientsToKill, mcl)
|
|
killedClientNicks = append(killedClientNicks, mcl.nick)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
for _, mcl := range clientsToKill {
|
|
mcl.Quit(fmt.Sprintf(mcl.t("You have been banned from this server (%s)"), reason), nil)
|
|
if mcl == client {
|
|
killClient = true
|
|
} else {
|
|
// if mcl == client, we kill them below
|
|
mcl.destroy(nil)
|
|
}
|
|
}
|
|
|
|
// send snomask
|
|
sort.Strings(killedClientNicks)
|
|
server.snomasks.Send(sno.LocalKills, fmt.Sprintf(ircfmt.Unescape("%s [%s] killed %d clients with a KLINE $c[grey][$r%s$c[grey]]"), details.nick, operName, len(killedClientNicks), strings.Join(killedClientNicks, ", ")))
|
|
}
|
|
|
|
return killClient
|
|
}
|
|
|
|
// LANGUAGE <code>{ <code>}
|
|
func languageHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
nick := client.Nick()
|
|
alreadyDoneLanguages := make(map[string]bool)
|
|
var appliedLanguages []string
|
|
|
|
lm := server.Languages()
|
|
supportedLanguagesCount := lm.Count()
|
|
if supportedLanguagesCount < len(msg.Params) {
|
|
rb.Add(nil, client.server.name, ERR_TOOMANYLANGUAGES, nick, strconv.Itoa(supportedLanguagesCount), client.t("You specified too many languages"))
|
|
return false
|
|
}
|
|
|
|
for _, value := range msg.Params {
|
|
value = strings.ToLower(value)
|
|
// strip ~ from the language if it has it
|
|
value = strings.TrimPrefix(value, "~")
|
|
|
|
// silently ignore empty languages or those with spaces in them
|
|
if len(value) == 0 || strings.Contains(value, " ") {
|
|
continue
|
|
}
|
|
|
|
_, exists := lm.Languages[value]
|
|
if !exists {
|
|
rb.Add(nil, client.server.name, ERR_NOLANGUAGE, nick, fmt.Sprintf(client.t("Language %s is not supported by this server"), value))
|
|
return false
|
|
}
|
|
|
|
// if we've already applied the given language, skip it
|
|
_, exists = alreadyDoneLanguages[value]
|
|
if exists {
|
|
continue
|
|
}
|
|
|
|
appliedLanguages = append(appliedLanguages, value)
|
|
}
|
|
|
|
var langsToSet []string
|
|
if !(len(appliedLanguages) == 1 && appliedLanguages[0] == "en") {
|
|
langsToSet = appliedLanguages
|
|
}
|
|
client.SetLanguages(langsToSet)
|
|
|
|
params := make([]string, len(appliedLanguages)+2)
|
|
params[0] = nick
|
|
copy(params[1:], appliedLanguages)
|
|
params[len(params)-1] = client.t("Language preferences have been set")
|
|
|
|
rb.Add(nil, client.server.name, RPL_YOURLANGUAGESARE, params...)
|
|
|
|
return false
|
|
}
|
|
|
|
// LIST [<channel>{,<channel>}] [<elistcond>{,<elistcond>}]
|
|
func listHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
config := server.Config()
|
|
if time.Since(client.ctime) < config.Channels.ListDelay && client.Account() == "" && !client.HasMode(modes.Operator) {
|
|
remaining := time.Until(client.ctime.Add(config.Channels.ListDelay))
|
|
rb.Notice(fmt.Sprintf(client.t("This server requires that you wait %v after connecting before you can use /LIST. You have %v left."), config.Channels.ListDelay, remaining))
|
|
rb.Add(nil, server.name, RPL_LISTEND, client.Nick(), client.t("End of LIST"))
|
|
return false
|
|
}
|
|
|
|
// get channels
|
|
var channels []string
|
|
for _, param := range msg.Params {
|
|
if 0 < len(param) && param[0] == '#' {
|
|
for _, channame := range strings.Split(param, ",") {
|
|
if 0 < len(channame) && channame[0] == '#' {
|
|
channels = append(channels, channame)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// get elist conditions
|
|
var matcher elistMatcher
|
|
for _, param := range msg.Params {
|
|
if len(param) < 1 {
|
|
continue
|
|
}
|
|
|
|
if param[0] == '<' {
|
|
param = param[1:]
|
|
val, err := strconv.Atoi(param)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
matcher.MaxClientsActive = true
|
|
matcher.MaxClients = val - 1 // -1 because < means less than the given number
|
|
}
|
|
if param[0] == '>' {
|
|
param = param[1:]
|
|
val, err := strconv.Atoi(param)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
matcher.MinClientsActive = true
|
|
matcher.MinClients = val + 1 // +1 because > means more than the given number
|
|
}
|
|
}
|
|
|
|
nick := client.Nick()
|
|
rplList := func(channel *Channel) {
|
|
members, name, topic := channel.listData()
|
|
rb.Add(nil, client.server.name, RPL_LIST, nick, name, strconv.Itoa(members), topic)
|
|
}
|
|
|
|
clientIsOp := client.HasRoleCapabs("sajoin")
|
|
if len(channels) == 0 {
|
|
for _, channel := range server.channels.Channels() {
|
|
if !clientIsOp && channel.flags.HasMode(modes.Secret) {
|
|
continue
|
|
}
|
|
if matcher.Matches(channel) {
|
|
rplList(channel)
|
|
}
|
|
}
|
|
} else {
|
|
// limit regular users to only listing one channel
|
|
if !clientIsOp {
|
|
channels = channels[:1]
|
|
}
|
|
|
|
for _, chname := range channels {
|
|
channel := server.channels.Get(chname)
|
|
if channel == nil || (!clientIsOp && channel.flags.HasMode(modes.Secret)) {
|
|
if len(chname) > 0 {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.nick, utils.SafeErrorParam(chname), client.t("No such channel"))
|
|
}
|
|
continue
|
|
}
|
|
if matcher.Matches(channel) {
|
|
rplList(channel)
|
|
}
|
|
}
|
|
}
|
|
rb.Add(nil, server.name, RPL_LISTEND, client.nick, client.t("End of LIST"))
|
|
return false
|
|
}
|
|
|
|
// LUSERS [<mask> [<server>]]
|
|
func lusersHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
server.Lusers(client, rb)
|
|
return false
|
|
}
|
|
|
|
// MODE <target> [<modestring> [<mode arguments>...]]
|
|
func modeHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if 0 < len(msg.Params[0]) && msg.Params[0][0] == '#' {
|
|
return cmodeHandler(server, client, msg, rb)
|
|
}
|
|
return umodeHandler(server, client, msg, rb)
|
|
}
|
|
|
|
// MODE <channel> [<modestring> [<mode arguments>...]]
|
|
func cmodeHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
channel := server.channels.Get(msg.Params[0])
|
|
|
|
if channel == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.nick, utils.SafeErrorParam(msg.Params[0]), client.t("No such channel"))
|
|
return false
|
|
}
|
|
|
|
var changes modes.ModeChanges
|
|
if 1 < len(msg.Params) {
|
|
// parse out real mode changes
|
|
params := msg.Params[1:]
|
|
var unknown map[rune]bool
|
|
changes, unknown = modes.ParseChannelModeChanges(params...)
|
|
|
|
// alert for unknown mode changes
|
|
for char := range unknown {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNMODE, client.nick, string(char), client.t("is an unknown mode character to me"))
|
|
}
|
|
if len(unknown) == 1 && len(changes) == 0 {
|
|
return false
|
|
}
|
|
}
|
|
// process mode changes, include list operations (an empty set of changes does a list)
|
|
applied := channel.ApplyChannelModeChanges(client, msg.Command == "SAMODE", changes, rb)
|
|
details := client.Details()
|
|
isBot := client.HasMode(modes.Bot)
|
|
announceCmodeChanges(channel, applied, details.nickMask, details.accountName, details.account, isBot, rb)
|
|
|
|
return false
|
|
}
|
|
|
|
func announceCmodeChanges(channel *Channel, applied modes.ModeChanges, source, accountName, account string, isBot bool, rb *ResponseBuffer) {
|
|
// send out changes
|
|
if len(applied) > 0 {
|
|
message := utils.MakeMessage("")
|
|
changeStrings := applied.Strings()
|
|
for _, changeString := range changeStrings {
|
|
message.Split = append(message.Split, utils.MessagePair{Message: changeString})
|
|
}
|
|
args := append([]string{channel.name}, changeStrings...)
|
|
rb.AddFromClient(message.Time, message.Msgid, source, accountName, isBot, nil, "MODE", args...)
|
|
for _, member := range channel.Members() {
|
|
for _, session := range member.Sessions() {
|
|
if session != rb.session {
|
|
session.sendFromClientInternal(false, message.Time, message.Msgid, source, accountName, isBot, nil, "MODE", args...)
|
|
}
|
|
}
|
|
}
|
|
channel.AddHistoryItem(history.Item{
|
|
Type: history.Mode,
|
|
Nick: source,
|
|
AccountName: accountName,
|
|
Message: message,
|
|
IsBot: isBot,
|
|
}, account)
|
|
}
|
|
}
|
|
|
|
// MODE <client> [<modestring> [<mode arguments>...]]
|
|
func umodeHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
cDetails := client.Details()
|
|
target := server.clients.Get(msg.Params[0])
|
|
if target == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHNICK, cDetails.nick, utils.SafeErrorParam(msg.Params[0]), client.t("No such nick"))
|
|
return false
|
|
}
|
|
|
|
targetNick := target.Nick()
|
|
hasPrivs := client == target || msg.Command == "SAMODE"
|
|
|
|
if !hasPrivs {
|
|
if len(msg.Params) > 1 {
|
|
rb.Add(nil, server.name, ERR_USERSDONTMATCH, cDetails.nick, client.t("Can't change modes for other users"))
|
|
} else {
|
|
rb.Add(nil, server.name, ERR_USERSDONTMATCH, cDetails.nick, client.t("Can't view modes for other users"))
|
|
}
|
|
return false
|
|
}
|
|
|
|
if msg.Command == "SAMODE" {
|
|
message := fmt.Sprintf("Operator %s ran SAMODE %s", client.Oper().Name, strings.Join(msg.Params, " "))
|
|
server.snomasks.Send(sno.LocalOpers, message)
|
|
server.logger.Info("opers", message)
|
|
}
|
|
|
|
// applied mode changes
|
|
applied := make(modes.ModeChanges, 0)
|
|
|
|
if 1 < len(msg.Params) {
|
|
// parse out real mode changes
|
|
params := msg.Params[1:]
|
|
changes, unknown := modes.ParseUserModeChanges(params...)
|
|
|
|
// alert for unknown mode changes
|
|
for char := range unknown {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNMODE, cDetails.nick, string(char), client.t("is an unknown mode character to me"))
|
|
}
|
|
if len(unknown) == 1 && len(changes) == 0 {
|
|
return false
|
|
}
|
|
|
|
// apply mode changes
|
|
applied = ApplyUserModeChanges(target, changes, msg.Command == "SAMODE", nil)
|
|
}
|
|
|
|
if len(applied) > 0 {
|
|
args := append([]string{targetNick}, applied.Strings()...)
|
|
rb.Add(nil, cDetails.nickMask, "MODE", args...)
|
|
} else if hasPrivs {
|
|
rb.Add(nil, server.name, RPL_UMODEIS, targetNick, target.ModeString())
|
|
if target.HasMode(modes.Operator) {
|
|
masks := server.snomasks.String(target)
|
|
if 0 < len(masks) {
|
|
rb.Add(nil, server.name, RPL_SNOMASKIS, targetNick, masks, client.t("Server notice masks"))
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// get the correct capitalization of a nick (if it's online), otherwise return ""
|
|
func (server *Server) getCurrentNick(nick string) (result string) {
|
|
if service, isService := OragonoServices[strings.ToLower(nick)]; isService {
|
|
return service.Name
|
|
} else if iclient := server.clients.Get(nick); iclient != nil {
|
|
return iclient.Nick()
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// MONITOR <subcmd> [params...]
|
|
func monitorHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
handler, exists := monitorSubcommands[strings.ToLower(msg.Params[0])]
|
|
|
|
if !exists {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.Nick(), "MONITOR", msg.Params[0], client.t("Unknown subcommand"))
|
|
return false
|
|
}
|
|
|
|
return handler(server, client, msg, rb)
|
|
}
|
|
|
|
// MONITOR - <target>{,<target>}
|
|
func monitorRemoveHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if len(msg.Params) < 2 {
|
|
rb.Add(nil, server.name, ERR_NEEDMOREPARAMS, client.Nick(), msg.Command, client.t("Not enough parameters"))
|
|
return false
|
|
}
|
|
|
|
targets := strings.Split(msg.Params[1], ",")
|
|
for _, target := range targets {
|
|
server.monitorManager.Remove(rb.session, target)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// MONITOR + <target>{,<target>}
|
|
func monitorAddHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if len(msg.Params) < 2 {
|
|
rb.Add(nil, server.name, ERR_NEEDMOREPARAMS, client.Nick(), msg.Command, client.t("Not enough parameters"))
|
|
return false
|
|
}
|
|
|
|
var online []string
|
|
var offline []string
|
|
|
|
limits := server.Config().Limits
|
|
|
|
targets := strings.Split(msg.Params[1], ",")
|
|
for _, target := range targets {
|
|
// check name length
|
|
if len(target) < 1 || len(targets) > limits.NickLen {
|
|
continue
|
|
}
|
|
|
|
// add target
|
|
err := server.monitorManager.Add(rb.session, target, limits.MonitorEntries)
|
|
if err == errMonitorLimitExceeded {
|
|
rb.Add(nil, server.name, ERR_MONLISTFULL, client.Nick(), strconv.Itoa(limits.MonitorEntries), strings.Join(targets, ","))
|
|
break
|
|
} else if err != nil {
|
|
continue
|
|
}
|
|
|
|
currentNick := server.getCurrentNick(target)
|
|
// add to online / offline lists
|
|
if currentNick != "" {
|
|
online = append(online, currentNick)
|
|
} else {
|
|
offline = append(offline, target)
|
|
}
|
|
}
|
|
|
|
if len(online) > 0 {
|
|
rb.Add(nil, server.name, RPL_MONONLINE, client.Nick(), strings.Join(online, ","))
|
|
}
|
|
if len(offline) > 0 {
|
|
rb.Add(nil, server.name, RPL_MONOFFLINE, client.Nick(), strings.Join(offline, ","))
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// MONITOR C
|
|
func monitorClearHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
server.monitorManager.RemoveAll(rb.session)
|
|
return false
|
|
}
|
|
|
|
// MONITOR L
|
|
func monitorListHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
nick := client.Nick()
|
|
monitorList := server.monitorManager.List(rb.session)
|
|
|
|
var nickList []string
|
|
for _, cfnick := range monitorList {
|
|
replynick := cfnick
|
|
currentNick := server.getCurrentNick(cfnick)
|
|
// report the uncasefolded nick if it's available, i.e., the client is online
|
|
if currentNick != "" {
|
|
replynick = currentNick
|
|
}
|
|
nickList = append(nickList, replynick)
|
|
}
|
|
|
|
for _, line := range utils.BuildTokenLines(maxLastArgLength, nickList, ",") {
|
|
rb.Add(nil, server.name, RPL_MONLIST, nick, line)
|
|
}
|
|
|
|
rb.Add(nil, server.name, RPL_ENDOFMONLIST, nick, "End of MONITOR list")
|
|
|
|
return false
|
|
}
|
|
|
|
// MONITOR S
|
|
func monitorStatusHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
var online []string
|
|
var offline []string
|
|
|
|
monitorList := server.monitorManager.List(rb.session)
|
|
|
|
for _, name := range monitorList {
|
|
currentNick := server.getCurrentNick(name)
|
|
if currentNick != "" {
|
|
online = append(online, currentNick)
|
|
} else {
|
|
offline = append(offline, name)
|
|
}
|
|
}
|
|
|
|
if len(online) > 0 {
|
|
for _, line := range utils.BuildTokenLines(maxLastArgLength, online, ",") {
|
|
rb.Add(nil, server.name, RPL_MONONLINE, client.Nick(), line)
|
|
}
|
|
}
|
|
if len(offline) > 0 {
|
|
for _, line := range utils.BuildTokenLines(maxLastArgLength, offline, ",") {
|
|
rb.Add(nil, server.name, RPL_MONOFFLINE, client.Nick(), line)
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// MOTD
|
|
func motdHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
server.MOTD(client, rb)
|
|
return false
|
|
}
|
|
|
|
// NAMES [<channel>{,<channel>} [target]]
|
|
func namesHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
var channels []string
|
|
if len(msg.Params) > 0 {
|
|
channels = strings.Split(msg.Params[0], ",")
|
|
}
|
|
|
|
// TODO: in a post-federation world, process `target` (server to forward request to)
|
|
|
|
// implement the modern behavior: https://modern.ircdocs.horse/#names-message
|
|
// "Servers MAY only return information about the first <channel> and silently ignore the others."
|
|
// "If no parameter is given for this command, servers SHOULD return one RPL_ENDOFNAMES numeric
|
|
// with the <channel> parameter set to an asterix character"
|
|
|
|
if len(channels) == 0 {
|
|
rb.Add(nil, server.name, RPL_ENDOFNAMES, client.Nick(), "*", client.t("End of NAMES list"))
|
|
return false
|
|
}
|
|
|
|
chname := channels[0]
|
|
success := false
|
|
channel := server.channels.Get(chname)
|
|
if channel != nil {
|
|
if !channel.flags.HasMode(modes.Secret) || channel.hasClient(client) || client.HasRoleCapabs("sajoin") {
|
|
channel.Names(client, rb)
|
|
success = true
|
|
}
|
|
}
|
|
if !success { // channel.Names() sends this numeric itself on success
|
|
rb.Add(nil, server.name, RPL_ENDOFNAMES, client.Nick(), chname, client.t("End of NAMES list"))
|
|
}
|
|
return false
|
|
}
|
|
|
|
// NICK <nickname>
|
|
func nickHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if client.registered {
|
|
if client.account == "" && server.Config().Accounts.NickReservation.ForbidAnonNickChanges {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.Nick(), client.t("You may not change your nickname"))
|
|
return false
|
|
}
|
|
performNickChange(server, client, client, nil, msg.Params[0], rb)
|
|
} else {
|
|
client.preregNick = msg.Params[0]
|
|
}
|
|
return false
|
|
}
|
|
|
|
// check whether a PRIVMSG or NOTICE is too long to be relayed without truncation
|
|
func validateLineLen(msgType history.ItemType, source, target, payload string) (ok bool) {
|
|
// :source PRIVMSG #target :payload\r\n
|
|
// 1: initial colon on prefix
|
|
// 1: space between prefix and command
|
|
// 1: space between command and target (first parameter)
|
|
// 1: space between target and payload (second parameter)
|
|
// 1: colon to send the payload as a trailing (we force trailing for PRIVMSG and NOTICE)
|
|
// 2: final \r\n
|
|
limit := MaxLineLen - 7
|
|
limit -= len(source)
|
|
switch msgType {
|
|
case history.Privmsg:
|
|
limit -= 7
|
|
case history.Notice:
|
|
limit -= 6
|
|
default:
|
|
return true
|
|
}
|
|
limit -= len(payload)
|
|
return limit >= 0
|
|
}
|
|
|
|
// check validateLineLen for an entire SplitMessage (which may consist of multiple lines)
|
|
func validateSplitMessageLen(msgType history.ItemType, source, target string, message utils.SplitMessage) (ok bool) {
|
|
if message.Is512() {
|
|
return validateLineLen(msgType, source, target, message.Message)
|
|
} else {
|
|
for _, messagePair := range message.Split {
|
|
if !validateLineLen(msgType, source, target, messagePair.Message) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
}
|
|
|
|
// helper to store a batched PRIVMSG in the session object
|
|
func absorbBatchedMessage(server *Server, client *Client, msg ircmsg.Message, batchTag string, histType history.ItemType, rb *ResponseBuffer) {
|
|
var errorCode, errorMessage string
|
|
defer func() {
|
|
if errorCode != "" {
|
|
if histType != history.Notice {
|
|
rb.Add(nil, server.name, "FAIL", "BATCH", errorCode, errorMessage)
|
|
}
|
|
rb.session.EndMultilineBatch("")
|
|
}
|
|
}()
|
|
|
|
if batchTag != rb.session.batch.label {
|
|
errorCode, errorMessage = "MULTILINE_INVALID", client.t("Incorrect batch tag sent")
|
|
return
|
|
} else if len(msg.Params) < 2 {
|
|
errorCode, errorMessage = "MULTILINE_INVALID", client.t("Invalid multiline batch")
|
|
return
|
|
}
|
|
rb.session.batch.command = msg.Command
|
|
isConcat, _ := msg.GetTag(caps.MultilineConcatTag)
|
|
if isConcat && len(msg.Params[1]) == 0 {
|
|
errorCode, errorMessage = "MULTILINE_INVALID", client.t("Cannot send a blank line with the multiline concat tag")
|
|
return
|
|
}
|
|
if !isConcat && len(rb.session.batch.message.Split) != 0 {
|
|
rb.session.batch.lenBytes++ // bill for the newline
|
|
}
|
|
rb.session.batch.message.Append(msg.Params[1], isConcat)
|
|
rb.session.batch.lenBytes += len(msg.Params[1])
|
|
config := server.Config()
|
|
if config.Limits.Multiline.MaxBytes < rb.session.batch.lenBytes {
|
|
errorCode, errorMessage = "MULTILINE_MAX_BYTES", strconv.Itoa(config.Limits.Multiline.MaxBytes)
|
|
} else if config.Limits.Multiline.MaxLines != 0 && config.Limits.Multiline.MaxLines < rb.session.batch.message.LenLines() {
|
|
errorCode, errorMessage = "MULTILINE_MAX_LINES", strconv.Itoa(config.Limits.Multiline.MaxLines)
|
|
}
|
|
}
|
|
|
|
// NOTICE <target>{,<target>} <message>
|
|
// PRIVMSG <target>{,<target>} <message>
|
|
// TAGMSG <target>{,<target>}
|
|
func messageHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
histType, err := msgCommandToHistType(msg.Command)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
if isBatched, batchTag := msg.GetTag("batch"); isBatched {
|
|
absorbBatchedMessage(server, client, msg, batchTag, histType, rb)
|
|
return false
|
|
}
|
|
|
|
clientOnlyTags := msg.ClientOnlyTags()
|
|
if histType == history.Tagmsg && len(clientOnlyTags) == 0 {
|
|
// nothing to do
|
|
return false
|
|
}
|
|
|
|
targets := strings.Split(msg.Params[0], ",")
|
|
var message string
|
|
if len(msg.Params) > 1 {
|
|
message = msg.Params[1]
|
|
}
|
|
if histType != history.Tagmsg && message == "" {
|
|
rb.Add(nil, server.name, ERR_NOTEXTTOSEND, client.Nick(), client.t("No text to send"))
|
|
return false
|
|
}
|
|
|
|
isCTCP := utils.IsRestrictedCTCPMessage(message)
|
|
if histType == history.Privmsg && !isCTCP {
|
|
client.UpdateActive(rb.session)
|
|
}
|
|
|
|
if rb.session.isTor && isCTCP {
|
|
// note that error replies are never sent for NOTICE
|
|
if histType != history.Notice {
|
|
rb.Notice(client.t("CTCP messages are disabled over Tor"))
|
|
}
|
|
return false
|
|
}
|
|
|
|
for i, targetString := range targets {
|
|
// max of four targets per privmsg
|
|
if i == maxTargets {
|
|
break
|
|
}
|
|
|
|
config := server.Config()
|
|
if config.isRelaymsgIdentifier(targetString) {
|
|
if histType == history.Privmsg {
|
|
rb.Add(nil, server.name, ERR_NOSUCHNICK, client.Nick(), targetString, client.t("Relayed users cannot receive private messages"))
|
|
}
|
|
// TAGMSG/NOTICEs are intentionally silently dropped
|
|
continue
|
|
}
|
|
|
|
// each target gets distinct msgids
|
|
splitMsg := utils.MakeMessage(message)
|
|
dispatchMessageToTarget(client, clientOnlyTags, histType, msg.Command, targetString, splitMsg, rb)
|
|
}
|
|
return false
|
|
}
|
|
|
|
func dispatchMessageToTarget(client *Client, tags map[string]string, histType history.ItemType, command, target string, message utils.SplitMessage, rb *ResponseBuffer) {
|
|
server := client.server
|
|
|
|
prefixes, target := modes.SplitChannelMembershipPrefixes(target)
|
|
lowestPrefix := modes.GetLowestChannelModePrefix(prefixes)
|
|
|
|
if len(target) == 0 {
|
|
return
|
|
} else if target[0] == '#' {
|
|
channel := server.channels.Get(target)
|
|
if channel == nil {
|
|
if histType != history.Notice {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.Nick(), utils.SafeErrorParam(target), client.t("No such channel"))
|
|
}
|
|
return
|
|
}
|
|
channel.SendSplitMessage(command, lowestPrefix, tags, client, message, rb)
|
|
} else if target[0] == '$' && len(target) > 2 && client.Oper().HasRoleCapab("massmessage") {
|
|
details := client.Details()
|
|
matcher, err := utils.CompileGlob(target[2:], false)
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, details.nick, command, client.t("Erroneous target"))
|
|
return
|
|
}
|
|
|
|
nickMaskString := details.nickMask
|
|
accountName := details.accountName
|
|
isBot := client.HasMode(modes.Bot)
|
|
for _, tClient := range server.clients.AllClients() {
|
|
if (target[1] == '$' && matcher.MatchString(tClient.server.name)) || // $$servername
|
|
(target[1] == '#' && matcher.MatchString(tClient.Hostname())) { // $#hostname
|
|
|
|
tnick := tClient.Nick()
|
|
for _, session := range tClient.Sessions() {
|
|
session.sendSplitMsgFromClientInternal(false, nickMaskString, accountName, isBot, nil, command, tnick, message)
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
lowercaseTarget := strings.ToLower(target)
|
|
service, isService := OragonoServices[lowercaseTarget]
|
|
_, isZNC := zncHandlers[lowercaseTarget]
|
|
|
|
if isService || isZNC {
|
|
details := client.Details()
|
|
rb.addEchoMessage(tags, details.nickMask, details.accountName, command, target, message)
|
|
if histType != history.Privmsg {
|
|
return // NOTICE and TAGMSG to services are ignored
|
|
}
|
|
if isService {
|
|
servicePrivmsgHandler(service, server, client, message.Message, rb)
|
|
} else if isZNC {
|
|
zncPrivmsgHandler(client, lowercaseTarget, message.Message, rb)
|
|
}
|
|
return
|
|
}
|
|
|
|
user := server.clients.Get(target)
|
|
if user == nil {
|
|
if histType != history.Notice {
|
|
rb.Add(nil, server.name, ERR_NOSUCHNICK, client.Nick(), target, "No such nick")
|
|
}
|
|
return
|
|
}
|
|
|
|
// Restrict CTCP message for target user with +T
|
|
if user.modes.HasMode(modes.UserNoCTCP) && message.IsRestrictedCTCPMessage() {
|
|
return
|
|
}
|
|
|
|
tDetails := user.Details()
|
|
tnick := tDetails.nick
|
|
|
|
details := client.Details()
|
|
if details.account == "" && server.Defcon() <= 3 {
|
|
rb.Add(nil, server.name, ERR_NEEDREGGEDNICK, client.Nick(), tnick, client.t("Direct messages from unregistered users are temporarily restricted"))
|
|
return
|
|
}
|
|
// restrict messages appropriately when +R is set
|
|
if details.account == "" && user.HasMode(modes.RegisteredOnly) {
|
|
rb.Add(nil, server.name, ERR_NEEDREGGEDNICK, client.Nick(), tnick, client.t("You must be registered to send a direct message to this user"))
|
|
return
|
|
}
|
|
if !client.server.Config().Server.Compatibility.allowTruncation {
|
|
if !validateSplitMessageLen(histType, client.NickMaskString(), tnick, message) {
|
|
rb.Add(nil, server.name, ERR_INPUTTOOLONG, client.Nick(), client.t("Line too long to be relayed without truncation"))
|
|
return
|
|
}
|
|
}
|
|
nickMaskString := details.nickMask
|
|
accountName := details.accountName
|
|
var deliverySessions []*Session
|
|
deliverySessions = append(deliverySessions, user.Sessions()...)
|
|
// all sessions of the sender, except the originating session, get a copy as well:
|
|
if client != user {
|
|
for _, session := range client.Sessions() {
|
|
if session != rb.session {
|
|
deliverySessions = append(deliverySessions, session)
|
|
}
|
|
}
|
|
}
|
|
|
|
isBot := client.HasMode(modes.Bot)
|
|
for _, session := range deliverySessions {
|
|
hasTagsCap := session.capabilities.Has(caps.MessageTags)
|
|
// don't send TAGMSG at all if they don't have the tags cap
|
|
if histType == history.Tagmsg && hasTagsCap {
|
|
session.sendFromClientInternal(false, message.Time, message.Msgid, nickMaskString, accountName, isBot, tags, command, tnick)
|
|
} else if histType != history.Tagmsg && !(session.isTor && message.IsRestrictedCTCPMessage()) {
|
|
tagsToSend := tags
|
|
if !hasTagsCap {
|
|
tagsToSend = nil
|
|
}
|
|
session.sendSplitMsgFromClientInternal(false, nickMaskString, accountName, isBot, tagsToSend, command, tnick, message)
|
|
}
|
|
}
|
|
|
|
// the originating session may get an echo message:
|
|
rb.addEchoMessage(tags, nickMaskString, accountName, command, tnick, message)
|
|
if histType != history.Notice {
|
|
//TODO(dan): possibly implement cooldown of away notifications to users
|
|
if away, awayMessage := user.Away(); away {
|
|
rb.Add(nil, server.name, RPL_AWAY, client.Nick(), tnick, awayMessage)
|
|
}
|
|
}
|
|
|
|
config := server.Config()
|
|
if !config.History.Enabled {
|
|
return
|
|
}
|
|
item := history.Item{
|
|
Type: histType,
|
|
Message: message,
|
|
Tags: tags,
|
|
}
|
|
client.addHistoryItem(user, item, &details, &tDetails, config)
|
|
}
|
|
}
|
|
|
|
func itemIsStorable(item *history.Item, config *Config) bool {
|
|
switch item.Type {
|
|
case history.Tagmsg:
|
|
if config.History.TagmsgStorage.Default {
|
|
for _, blacklistedTag := range config.History.TagmsgStorage.Blacklist {
|
|
if _, ok := item.Tags[blacklistedTag]; ok {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
} else {
|
|
for _, whitelistedTag := range config.History.TagmsgStorage.Whitelist {
|
|
if _, ok := item.Tags[whitelistedTag]; ok {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
case history.Privmsg, history.Notice:
|
|
// don't store CTCP other than ACTION
|
|
return !item.Message.IsRestrictedCTCPMessage()
|
|
default:
|
|
return true
|
|
}
|
|
}
|
|
|
|
// NPC <target> <sourcenick> <message>
|
|
func npcHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
target := msg.Params[0]
|
|
fakeSource := msg.Params[1]
|
|
message := msg.Params[2:]
|
|
|
|
sendRoleplayMessage(server, client, fakeSource, target, false, false, message, rb)
|
|
|
|
return false
|
|
}
|
|
|
|
// NPCA <target> <sourcenick> <message>
|
|
func npcaHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
target := msg.Params[0]
|
|
fakeSource := msg.Params[1]
|
|
message := msg.Params[2:]
|
|
|
|
sendRoleplayMessage(server, client, fakeSource, target, false, true, message, rb)
|
|
|
|
return false
|
|
}
|
|
|
|
// OPER <name> [password]
|
|
func operHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if client.HasMode(modes.Operator) {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.Nick(), "OPER", client.t("You're already opered-up!"))
|
|
return false
|
|
}
|
|
|
|
// must pass at least one check, and all enabled checks
|
|
var checkPassed, checkFailed, passwordFailed bool
|
|
oper := server.GetOperator(msg.Params[0])
|
|
if oper != nil {
|
|
if oper.Certfp != "" {
|
|
if oper.Certfp == rb.session.certfp {
|
|
checkPassed = true
|
|
} else {
|
|
checkFailed = true
|
|
}
|
|
}
|
|
if !checkFailed && oper.Pass != nil {
|
|
if len(msg.Params) == 1 {
|
|
checkFailed = true
|
|
} else if bcrypt.CompareHashAndPassword(oper.Pass, []byte(msg.Params[1])) != nil {
|
|
checkFailed = true
|
|
passwordFailed = true
|
|
} else {
|
|
checkPassed = true
|
|
}
|
|
}
|
|
}
|
|
|
|
if !checkPassed || checkFailed {
|
|
rb.Add(nil, server.name, ERR_PASSWDMISMATCH, client.Nick(), client.t("Password incorrect"))
|
|
// #951: only disconnect them if we actually tried to check a password for them
|
|
if passwordFailed {
|
|
client.Quit(client.t("Password incorrect"), rb.session)
|
|
return true
|
|
} else {
|
|
return false
|
|
}
|
|
}
|
|
|
|
if oper != nil {
|
|
applyOper(client, oper, rb)
|
|
}
|
|
return false
|
|
}
|
|
|
|
// adds or removes operator status
|
|
// XXX: to add oper, this calls into ApplyUserModeChanges, but to remove oper,
|
|
// ApplyUserModeChanges calls into this, because the commands are asymmetric
|
|
// (/OPER to add, /MODE self -o to remove)
|
|
func applyOper(client *Client, oper *Oper, rb *ResponseBuffer) {
|
|
details := client.Details()
|
|
client.SetOper(oper)
|
|
newDetails := client.Details()
|
|
if details.nickMask != newDetails.nickMask {
|
|
client.sendChghost(details.nickMask, newDetails.hostname)
|
|
}
|
|
|
|
if oper != nil {
|
|
// set new modes: modes.Operator, plus anything specified in the config
|
|
modeChanges := make([]modes.ModeChange, len(oper.Modes)+1)
|
|
modeChanges[0] = modes.ModeChange{
|
|
Mode: modes.Operator,
|
|
Op: modes.Add,
|
|
}
|
|
copy(modeChanges[1:], oper.Modes)
|
|
applied := ApplyUserModeChanges(client, modeChanges, true, oper)
|
|
|
|
client.server.logger.Info("opers", details.nick, "opered up as", oper.Name)
|
|
client.server.snomasks.Send(sno.LocalOpers, fmt.Sprintf(ircfmt.Unescape("Client opered up $c[grey][$r%s$c[grey], $r%s$c[grey]]"), newDetails.nickMask, oper.Name))
|
|
|
|
rb.Broadcast(nil, client.server.name, RPL_YOUREOPER, details.nick, client.t("You are now an IRC operator"))
|
|
args := append([]string{details.nick}, applied.Strings()...)
|
|
rb.Broadcast(nil, client.server.name, "MODE", args...)
|
|
} else {
|
|
client.server.snomasks.Send(sno.LocalOpers, fmt.Sprintf(ircfmt.Unescape("Client deopered $c[grey][$r%s$c[grey]]"), newDetails.nickMask))
|
|
}
|
|
|
|
for _, session := range client.Sessions() {
|
|
// client may now be unthrottled by the fakelag system
|
|
session.resetFakelag()
|
|
}
|
|
}
|
|
|
|
// DEOPER
|
|
func deoperHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if client.Oper() == nil {
|
|
rb.Notice(client.t("Insufficient oper privs"))
|
|
return false
|
|
}
|
|
// pretend they sent /MODE $nick -o
|
|
fakeModeMsg := ircmsg.MakeMessage(nil, "", "MODE", client.Nick(), "-o")
|
|
return umodeHandler(server, client, fakeModeMsg, rb)
|
|
}
|
|
|
|
// PART <channel>{,<channel>} [<reason>]
|
|
func partHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
channels := strings.Split(msg.Params[0], ",")
|
|
var reason string
|
|
if len(msg.Params) > 1 {
|
|
reason = msg.Params[1]
|
|
}
|
|
|
|
for _, chname := range channels {
|
|
if chname == "" {
|
|
continue // #679
|
|
}
|
|
err := server.channels.Part(client, chname, reason, rb)
|
|
if err == errNoSuchChannel {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.nick, utils.SafeErrorParam(chname), client.t("No such channel"))
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// PASS <password>
|
|
func passHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if client.registered {
|
|
rb.Add(nil, server.name, ERR_ALREADYREGISTRED, client.nick, client.t("You may not reregister"))
|
|
return false
|
|
}
|
|
// only give them one try to run the PASS command (if a server password is set,
|
|
// then all code paths end with this variable being set):
|
|
if rb.session.passStatus != serverPassUnsent {
|
|
return false
|
|
}
|
|
|
|
password := msg.Params[0]
|
|
config := server.Config()
|
|
|
|
if config.Accounts.LoginViaPassCommand {
|
|
colonIndex := strings.IndexByte(password, ':')
|
|
if colonIndex != -1 && client.Account() == "" {
|
|
account, accountPass := password[:colonIndex], password[colonIndex+1:]
|
|
if strudelIndex := strings.IndexByte(account, '@'); strudelIndex != -1 {
|
|
account, rb.session.deviceID = account[:strudelIndex], account[strudelIndex+1:]
|
|
}
|
|
err := server.accounts.AuthenticateByPassphrase(client, account, accountPass)
|
|
if err == nil {
|
|
sendSuccessfulAccountAuth(nil, client, rb, true)
|
|
// login-via-pass-command entails that we do not need to check
|
|
// an actual server password (either no password or skip-server-password)
|
|
rb.session.passStatus = serverPassSuccessful
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
// if login-via-PASS failed for any reason, proceed to try and interpret the
|
|
// provided password as the server password
|
|
|
|
serverPassword := config.Server.passwordBytes
|
|
|
|
// if no password exists, skip checking
|
|
if serverPassword == nil {
|
|
return false
|
|
}
|
|
|
|
// check the provided password
|
|
if bcrypt.CompareHashAndPassword(serverPassword, []byte(password)) == nil {
|
|
rb.session.passStatus = serverPassSuccessful
|
|
} else {
|
|
rb.session.passStatus = serverPassFailed
|
|
}
|
|
|
|
// if they failed the check, we'll bounce them later when they try to complete registration
|
|
// note in particular that with skip-server-password, you can give the wrong server
|
|
// password here, then successfully SASL and be admitted
|
|
return false
|
|
}
|
|
|
|
// PING [params...]
|
|
func pingHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
rb.Add(nil, server.name, "PONG", server.name, msg.Params[0])
|
|
return false
|
|
}
|
|
|
|
// PONG [params...]
|
|
func pongHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
// client gets touched when they send this command, so we don't need to do anything
|
|
return false
|
|
}
|
|
|
|
// QUIT [<reason>]
|
|
func quitHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
reason := "Quit"
|
|
if len(msg.Params) > 0 {
|
|
reason += ": " + msg.Params[0]
|
|
}
|
|
client.Quit(reason, rb.session)
|
|
return true
|
|
}
|
|
|
|
// REGISTER < email | * > <password>
|
|
func registerHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) (exiting bool) {
|
|
accountName := client.Nick()
|
|
if accountName == "*" {
|
|
accountName = client.preregNick
|
|
}
|
|
// check that accountName is valid as a non-final parameter;
|
|
// this is necessary for us to be valid and it will prevent us from emitting invalid error lines
|
|
nickErrorParam := utils.SafeErrorParam(accountName)
|
|
if accountName == "*" || accountName != nickErrorParam {
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "INVALID_USERNAME", nickErrorParam, client.t("Username invalid or not given"))
|
|
return
|
|
}
|
|
|
|
config := server.Config()
|
|
if !config.Accounts.Registration.Enabled {
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "DISALLOWED", accountName, client.t("Account registration is disabled"))
|
|
return
|
|
}
|
|
if !client.registered && !config.Accounts.Registration.AllowBeforeConnect {
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "COMPLETE_CONNECTION_REQUIRED", accountName, client.t("You must complete the connection before registering your account"))
|
|
return
|
|
}
|
|
if client.registerCmdSent || client.Account() != "" {
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "ALREADY_REGISTERED", accountName, client.t("You have already registered or attempted to register"))
|
|
return
|
|
}
|
|
|
|
callbackNamespace, callbackValue, err := parseCallback(msg.Params[0], config)
|
|
if err != nil {
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "INVALID_EMAIL", accountName, client.t("A valid e-mail address is required"))
|
|
return
|
|
}
|
|
|
|
err = server.accounts.Register(client, accountName, callbackNamespace, callbackValue, msg.Params[1], rb.session.certfp)
|
|
switch err {
|
|
case nil:
|
|
if callbackNamespace == "*" {
|
|
err := server.accounts.Verify(client, accountName, "")
|
|
if err == nil {
|
|
if client.registered {
|
|
if !fixupNickEqualsAccount(client, rb, config, "") {
|
|
err = errNickAccountMismatch
|
|
}
|
|
}
|
|
if err == nil {
|
|
rb.Add(nil, server.name, "REGISTER", "SUCCESS", accountName, client.t("Account successfully registered"))
|
|
sendSuccessfulRegResponse(nil, client, rb)
|
|
}
|
|
}
|
|
if err != nil {
|
|
server.logger.Error("internal", "accounts", "failed autoverification", accountName, err.Error())
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "UNKNOWN_ERROR", client.t("An error occurred"))
|
|
}
|
|
} else {
|
|
rb.Add(nil, server.name, "REGISTER", "VERIFICATION_REQUIRED", accountName, fmt.Sprintf(client.t("Account created, pending verification; verification code has been sent to %s"), callbackValue))
|
|
client.registerCmdSent = true
|
|
}
|
|
case errAccountAlreadyRegistered, errAccountAlreadyUnregistered, errAccountMustHoldNick:
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "USERNAME_EXISTS", accountName, client.t("Username is already registered or otherwise unavailable"))
|
|
case errAccountBadPassphrase:
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "INVALID_PASSWORD", accountName, client.t("Password was invalid"))
|
|
case errCallbackFailed:
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "UNACCEPTABLE_EMAIL", accountName, client.t("Could not dispatch verification e-mail"))
|
|
default:
|
|
rb.Add(nil, server.name, "FAIL", "REGISTER", "UNKNOWN_ERROR", accountName, client.t("Could not register"))
|
|
}
|
|
return
|
|
}
|
|
|
|
// VERIFY <account> <code>
|
|
func verifyHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) (exiting bool) {
|
|
config := server.Config()
|
|
if !config.Accounts.Registration.Enabled {
|
|
rb.Add(nil, server.name, "FAIL", "VERIFY", "DISALLOWED", client.t("Account registration is disabled"))
|
|
return
|
|
}
|
|
if !client.registered && !config.Accounts.Registration.AllowBeforeConnect {
|
|
rb.Add(nil, server.name, "FAIL", "VERIFY", "DISALLOWED", client.t("You must complete the connection before verifying your account"))
|
|
return
|
|
}
|
|
if client.Account() != "" {
|
|
rb.Add(nil, server.name, "FAIL", "VERIFY", "ALREADY_REGISTERED", client.t("You have already registered or attempted to register"))
|
|
return
|
|
}
|
|
|
|
accountName, verificationCode := msg.Params[0], msg.Params[1]
|
|
err := server.accounts.Verify(client, accountName, verificationCode)
|
|
if err == nil && client.registered {
|
|
if !fixupNickEqualsAccount(client, rb, config, "") {
|
|
err = errNickAccountMismatch
|
|
}
|
|
}
|
|
switch err {
|
|
case nil:
|
|
rb.Add(nil, server.name, "VERIFY", "SUCCESS", accountName, client.t("Account successfully registered"))
|
|
sendSuccessfulRegResponse(nil, client, rb)
|
|
case errAccountVerificationInvalidCode:
|
|
rb.Add(nil, server.name, "FAIL", "VERIFY", "INVALID_CODE", client.t("Invalid verification code"))
|
|
default:
|
|
rb.Add(nil, server.name, "FAIL", "VERIFY", "UNKNOWN_ERROR", client.t("Failed to verify account"))
|
|
}
|
|
|
|
if err != nil && !client.registered {
|
|
// XXX pre-registration clients are exempt from fakelag;
|
|
// slow the client down to stop them spamming verify attempts
|
|
time.Sleep(time.Second)
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// REHASH
|
|
func rehashHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
nick := client.Nick()
|
|
server.logger.Info("server", "REHASH command used by", nick)
|
|
err := server.rehash()
|
|
|
|
if err == nil {
|
|
// we used to send RPL_REHASHING here but i don't think it really makes sense
|
|
// in the labeled-response world, since the intent is "rehash in progress" but
|
|
// it won't display until the rehash is actually complete
|
|
// TODO all operators should get a notice of some kind here
|
|
rb.Notice(client.t("Rehash complete"))
|
|
} else {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, nick, "REHASH", err.Error())
|
|
}
|
|
return false
|
|
}
|
|
|
|
// RELAYMSG <channel> <spoofed nick> :<message>
|
|
func relaymsgHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) (result bool) {
|
|
config := server.Config()
|
|
if !config.Server.Relaymsg.Enabled {
|
|
rb.Add(nil, server.name, "FAIL", "RELAYMSG", "NOT_ENABLED", client.t("RELAYMSG has been disabled"))
|
|
return false
|
|
}
|
|
|
|
channel := server.channels.Get(msg.Params[0])
|
|
if channel == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.Nick(), utils.SafeErrorParam(msg.Params[0]), client.t("No such channel"))
|
|
return false
|
|
}
|
|
|
|
allowedToRelay := client.HasRoleCapabs("relaymsg") || (config.Server.Relaymsg.AvailableToChanops && channel.ClientIsAtLeast(client, modes.ChannelOperator))
|
|
if !allowedToRelay {
|
|
rb.Add(nil, server.name, "FAIL", "RELAYMSG", "PRIVS_NEEDED", client.t("You cannot relay messages to this channel"))
|
|
return false
|
|
}
|
|
|
|
rawMessage := msg.Params[2]
|
|
if strings.TrimSpace(rawMessage) == "" {
|
|
rb.Add(nil, server.name, "FAIL", "RELAYMSG", "BLANK_MSG", client.t("The message must not be blank"))
|
|
return false
|
|
}
|
|
message := utils.MakeMessage(rawMessage)
|
|
|
|
nick := msg.Params[1]
|
|
_, err := CasefoldName(nick)
|
|
if err != nil {
|
|
rb.Add(nil, server.name, "FAIL", "RELAYMSG", "INVALID_NICK", client.t("Invalid nickname"))
|
|
return false
|
|
}
|
|
if !config.isRelaymsgIdentifier(nick) {
|
|
rb.Add(nil, server.name, "FAIL", "RELAYMSG", "INVALID_NICK", fmt.Sprintf(client.t("Relayed nicknames MUST contain a relaymsg separator from this set: %s"), config.Server.Relaymsg.Separators))
|
|
return false
|
|
}
|
|
if channel.relayNickMuted(nick) {
|
|
rb.Add(nil, server.name, "FAIL", "RELAYMSG", "BANNED", fmt.Sprintf(client.t("%s is banned from relaying to the channel"), nick))
|
|
return false
|
|
}
|
|
|
|
details := client.Details()
|
|
// #1647: we need to publish a full NUH. send ~u (or the configured alternative)
|
|
// as the user/ident, and send the relayer's hostname as the hostname:
|
|
ident := config.Server.CoerceIdent
|
|
if ident == "" {
|
|
ident = "~u"
|
|
}
|
|
// #1661: if the bot has its own account, use the account cloak,
|
|
// otherwise fall back to the hostname (which may be IP-derived)
|
|
hostname := details.hostname
|
|
if details.accountName != "" {
|
|
hostname = config.Server.Cloaks.ComputeAccountCloak(details.accountName)
|
|
}
|
|
nuh := fmt.Sprintf("%s!%s@%s", nick, ident, hostname)
|
|
|
|
channel.AddHistoryItem(history.Item{
|
|
Type: history.Privmsg,
|
|
Message: message,
|
|
Nick: nuh,
|
|
}, "")
|
|
|
|
// 3 possibilities for tags:
|
|
// no tags, the relaymsg tag only, or the relaymsg tag together with all client-only tags
|
|
relayTag := map[string]string{
|
|
caps.RelaymsgTagName: details.nick,
|
|
}
|
|
clientOnlyTags := msg.ClientOnlyTags()
|
|
var fullTags map[string]string
|
|
if len(clientOnlyTags) == 0 {
|
|
fullTags = relayTag
|
|
} else {
|
|
fullTags = make(map[string]string, 1+len(clientOnlyTags))
|
|
fullTags[caps.RelaymsgTagName] = details.nick
|
|
for t, v := range clientOnlyTags {
|
|
fullTags[t] = v
|
|
}
|
|
}
|
|
|
|
// actually send the message
|
|
channelName := channel.Name()
|
|
for _, member := range channel.Members() {
|
|
for _, session := range member.Sessions() {
|
|
var tagsToUse map[string]string
|
|
if session.capabilities.Has(caps.MessageTags) {
|
|
tagsToUse = fullTags
|
|
} else if session.capabilities.Has(caps.Relaymsg) {
|
|
tagsToUse = relayTag
|
|
}
|
|
|
|
if session == rb.session {
|
|
rb.AddSplitMessageFromClient(nuh, "*", false, tagsToUse, "PRIVMSG", channelName, message)
|
|
} else {
|
|
session.sendSplitMsgFromClientInternal(false, nuh, "*", false, tagsToUse, "PRIVMSG", channelName, message)
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// RENAME <oldchan> <newchan> [<reason>]
|
|
func renameHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
oldName, newName := msg.Params[0], msg.Params[1]
|
|
var reason string
|
|
if 2 < len(msg.Params) {
|
|
reason = msg.Params[2]
|
|
}
|
|
|
|
channel := server.channels.Get(oldName)
|
|
if channel == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.Nick(), utils.SafeErrorParam(oldName), client.t("No such channel"))
|
|
return false
|
|
}
|
|
oldName = channel.Name()
|
|
|
|
if !(channel.ClientIsAtLeast(client, modes.ChannelOperator) || client.HasRoleCapabs("chanreg")) {
|
|
rb.Add(nil, server.name, ERR_CHANOPRIVSNEEDED, client.Nick(), oldName, client.t("You're not a channel operator"))
|
|
return false
|
|
}
|
|
|
|
founder := channel.Founder()
|
|
if founder != "" && founder != client.Account() {
|
|
rb.Add(nil, server.name, "FAIL", "RENAME", "CANNOT_RENAME", oldName, utils.SafeErrorParam(newName), client.t("Only channel founders can change registered channels"))
|
|
return false
|
|
}
|
|
|
|
config := server.Config()
|
|
status, _, _ := channel.historyStatus(config)
|
|
if status == HistoryPersistent {
|
|
rb.Add(nil, server.name, "FAIL", "RENAME", "CANNOT_RENAME", oldName, utils.SafeErrorParam(newName), client.t("Channels with persistent history cannot be renamed"))
|
|
return false
|
|
}
|
|
|
|
// perform the channel rename
|
|
err := server.channels.Rename(oldName, newName)
|
|
if err == errInvalidChannelName {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.Nick(), utils.SafeErrorParam(newName), client.t(err.Error()))
|
|
} else if err == errChannelNameInUse || err == errConfusableIdentifier {
|
|
rb.Add(nil, server.name, "FAIL", "RENAME", "CHANNEL_NAME_IN_USE", oldName, utils.SafeErrorParam(newName), client.t(err.Error()))
|
|
} else if err != nil {
|
|
rb.Add(nil, server.name, "FAIL", "RENAME", "CANNOT_RENAME", oldName, utils.SafeErrorParam(newName), client.t("Cannot rename channel"))
|
|
}
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
// send RENAME messages
|
|
clientPrefix := client.NickMaskString()
|
|
for _, mcl := range channel.Members() {
|
|
mDetails := mcl.Details()
|
|
for _, mSession := range mcl.Sessions() {
|
|
targetRb := rb
|
|
targetPrefix := clientPrefix
|
|
if mSession != rb.session {
|
|
targetRb = NewResponseBuffer(mSession)
|
|
targetPrefix = mDetails.nickMask
|
|
}
|
|
if mSession.capabilities.Has(caps.ChannelRename) {
|
|
if reason != "" {
|
|
targetRb.Add(nil, clientPrefix, "RENAME", oldName, newName, reason)
|
|
} else {
|
|
targetRb.Add(nil, clientPrefix, "RENAME", oldName, newName)
|
|
}
|
|
} else {
|
|
if reason != "" {
|
|
targetRb.Add(nil, targetPrefix, "PART", oldName, fmt.Sprintf(mcl.t("Channel renamed: %s"), reason))
|
|
} else {
|
|
targetRb.Add(nil, targetPrefix, "PART", oldName, mcl.t("Channel renamed"))
|
|
}
|
|
if mSession.capabilities.Has(caps.ExtendedJoin) {
|
|
targetRb.Add(nil, targetPrefix, "JOIN", newName, mDetails.accountName, mDetails.realname)
|
|
} else {
|
|
targetRb.Add(nil, targetPrefix, "JOIN", newName)
|
|
}
|
|
channel.SendTopic(mcl, targetRb, false)
|
|
channel.Names(mcl, targetRb)
|
|
}
|
|
if mcl != client {
|
|
targetRb.Send(false)
|
|
}
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// SANICK <oldnick> <nickname>
|
|
func sanickHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
targetNick := msg.Params[0]
|
|
target := server.clients.Get(targetNick)
|
|
if target == nil {
|
|
rb.Add(nil, server.name, "FAIL", "SANICK", "NO_SUCH_NICKNAME", utils.SafeErrorParam(targetNick), client.t("No such nick"))
|
|
return false
|
|
}
|
|
performNickChange(server, client, target, nil, msg.Params[1], rb)
|
|
return false
|
|
}
|
|
|
|
// SCENE <target> <message>
|
|
func sceneHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
target := msg.Params[0]
|
|
message := msg.Params[1:]
|
|
|
|
sendRoleplayMessage(server, client, "", target, true, false, message, rb)
|
|
|
|
return false
|
|
}
|
|
|
|
// SETNAME <realname>
|
|
func setnameHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
realname := msg.Params[0]
|
|
if len(msg.Params) != 1 {
|
|
// workaround for clients that turn unknown commands into raw IRC lines,
|
|
// so you can do `/setname Jane Doe` in the client and get the expected result
|
|
realname = strings.Join(msg.Params, " ")
|
|
}
|
|
if realname == "" {
|
|
rb.Add(nil, server.name, "FAIL", "SETNAME", "INVALID_REALNAME", client.t("Realname is not valid"))
|
|
return false
|
|
}
|
|
|
|
client.SetRealname(realname)
|
|
details := client.Details()
|
|
|
|
// alert friends
|
|
now := time.Now().UTC()
|
|
friends := client.Friends(caps.SetName)
|
|
delete(friends, rb.session)
|
|
isBot := client.HasMode(modes.Bot)
|
|
for session := range friends {
|
|
session.sendFromClientInternal(false, now, "", details.nickMask, details.accountName, isBot, nil, "SETNAME", details.realname)
|
|
}
|
|
// respond to the user unconditionally, even if they don't have the cap
|
|
rb.AddFromClient(now, "", details.nickMask, details.accountName, isBot, nil, "SETNAME", details.realname)
|
|
return false
|
|
}
|
|
|
|
// SUMMON [parameters]
|
|
func summonHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
rb.Add(nil, server.name, ERR_SUMMONDISABLED, client.Nick(), client.t("SUMMON has been disabled"))
|
|
return false
|
|
}
|
|
|
|
// TIME
|
|
func timeHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
rb.Add(nil, server.name, RPL_TIME, client.nick, server.name, time.Now().UTC().Format(time.RFC1123))
|
|
return false
|
|
}
|
|
|
|
// TOPIC <channel> [<topic>]
|
|
func topicHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
channel := server.channels.Get(msg.Params[0])
|
|
if channel == nil {
|
|
rb.Add(nil, server.name, ERR_NOSUCHCHANNEL, client.nick, utils.SafeErrorParam(msg.Params[0]), client.t("No such channel"))
|
|
return false
|
|
}
|
|
|
|
if len(msg.Params) > 1 {
|
|
channel.SetTopic(client, msg.Params[1], rb)
|
|
} else {
|
|
channel.SendTopic(client, rb, true)
|
|
}
|
|
return false
|
|
}
|
|
|
|
// UNDLINE <ip>|<net>
|
|
func unDLineHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
// check oper permissions
|
|
oper := client.Oper()
|
|
if !oper.HasRoleCapab("ban") {
|
|
rb.Add(nil, server.name, ERR_NOPRIVS, client.nick, msg.Command, client.t("Insufficient oper privs"))
|
|
return false
|
|
}
|
|
|
|
// get host
|
|
hostString := msg.Params[0]
|
|
|
|
// check host
|
|
hostNet, err := flatip.ParseToNormalizedNet(hostString)
|
|
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.nick, msg.Command, client.t("Could not parse IP address or CIDR network"))
|
|
return false
|
|
}
|
|
|
|
err = server.dlines.RemoveNetwork(hostNet)
|
|
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.nick, msg.Command, fmt.Sprintf(client.t("Could not remove ban [%s]"), err.Error()))
|
|
return false
|
|
}
|
|
|
|
hostString = hostNet.String()
|
|
rb.Notice(fmt.Sprintf(client.t("Removed D-Line for %s"), hostString))
|
|
server.snomasks.Send(sno.LocalXline, fmt.Sprintf(ircfmt.Unescape("%s$r removed D-Line for %s"), client.nick, hostString))
|
|
return false
|
|
}
|
|
|
|
// UNKLINE <mask>
|
|
func unKLineHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
details := client.Details()
|
|
// check oper permissions
|
|
oper := client.Oper()
|
|
if !oper.HasRoleCapab("ban") {
|
|
rb.Add(nil, server.name, ERR_NOPRIVS, details.nick, msg.Command, client.t("Insufficient oper privs"))
|
|
return false
|
|
}
|
|
|
|
// get host
|
|
mask := msg.Params[0]
|
|
mask, err := CanonicalizeMaskWildcard(mask)
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, details.nick, msg.Command, client.t("Erroneous nickname"))
|
|
return false
|
|
}
|
|
|
|
err = server.klines.RemoveMask(mask)
|
|
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, details.nick, msg.Command, fmt.Sprintf(client.t("Could not remove ban [%s]"), err.Error()))
|
|
return false
|
|
}
|
|
|
|
rb.Notice(fmt.Sprintf(client.t("Removed K-Line for %s"), mask))
|
|
server.snomasks.Send(sno.LocalXline, fmt.Sprintf(ircfmt.Unescape("%s$r removed K-Line for %s"), details.nick, mask))
|
|
return false
|
|
}
|
|
|
|
// USER <username> * 0 <realname>
|
|
func userHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
if client.registered {
|
|
rb.Add(nil, server.name, ERR_ALREADYREGISTRED, client.Nick(), client.t("You may not reregister"))
|
|
return false
|
|
}
|
|
|
|
username, realname := msg.Params[0], msg.Params[3]
|
|
if len(realname) == 0 {
|
|
rb.Add(nil, server.name, ERR_NEEDMOREPARAMS, client.Nick(), client.t("Not enough parameters"))
|
|
return false
|
|
}
|
|
|
|
// #843: we accept either: `USER user:pass@clientid` or `USER user@clientid`
|
|
if strudelIndex := strings.IndexByte(username, '@'); strudelIndex != -1 {
|
|
username, rb.session.deviceID = username[:strudelIndex], username[strudelIndex+1:]
|
|
if colonIndex := strings.IndexByte(username, ':'); colonIndex != -1 {
|
|
var password string
|
|
username, password = username[:colonIndex], username[colonIndex+1:]
|
|
err := server.accounts.AuthenticateByPassphrase(client, username, password)
|
|
if err == nil {
|
|
sendSuccessfulAccountAuth(nil, client, rb, true)
|
|
} else {
|
|
// this is wrong, but send something for debugging that will show up in a raw transcript
|
|
rb.Add(nil, server.name, ERR_SASLFAIL, client.Nick(), client.t("SASL authentication failed"))
|
|
}
|
|
}
|
|
}
|
|
|
|
err := client.SetNames(username, realname, false)
|
|
if err == errInvalidUsername {
|
|
// if client's using a unicode nick or something weird, let's just set 'em up with a stock username instead.
|
|
// fixes clients that just use their nick as a username so they can still use the interesting nick
|
|
if client.preregNick == username {
|
|
client.SetNames("user", realname, false)
|
|
} else {
|
|
rb.Add(nil, server.name, ERR_INVALIDUSERNAME, client.Nick(), client.t("Malformed username"))
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// does `target` have an operator status that is visible to `client`?
|
|
func operStatusVisible(client, target *Client, hasPrivs bool) bool {
|
|
targetOper := target.Oper()
|
|
if targetOper == nil {
|
|
return false
|
|
}
|
|
if client == target || hasPrivs {
|
|
return true
|
|
}
|
|
return !targetOper.Hidden
|
|
}
|
|
|
|
// USERHOST <nickname>{ <nickname>}
|
|
func userhostHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
hasPrivs := client.HasMode(modes.Operator)
|
|
returnedClients := make(ClientSet)
|
|
|
|
var tl utils.TokenLineBuilder
|
|
tl.Initialize(400, " ")
|
|
for i, nickname := range msg.Params {
|
|
if i >= 10 {
|
|
break
|
|
}
|
|
|
|
target := server.clients.Get(nickname)
|
|
if target == nil {
|
|
continue
|
|
}
|
|
// to prevent returning multiple results for a single nick
|
|
if returnedClients.Has(target) {
|
|
continue
|
|
}
|
|
returnedClients.Add(target)
|
|
|
|
var isOper, isAway string
|
|
|
|
if operStatusVisible(client, target, hasPrivs) {
|
|
isOper = "*"
|
|
}
|
|
if away, _ := target.Away(); away {
|
|
isAway = "-"
|
|
} else {
|
|
isAway = "+"
|
|
}
|
|
details := target.Details()
|
|
tl.Add(fmt.Sprintf("%s%s=%s%s@%s", details.nick, isOper, isAway, details.username, details.hostname))
|
|
}
|
|
|
|
lines := tl.Lines()
|
|
if lines == nil {
|
|
lines = []string{""}
|
|
}
|
|
nick := client.Nick()
|
|
for _, line := range lines {
|
|
rb.Add(nil, client.server.name, RPL_USERHOST, nick, line)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// USERS [parameters]
|
|
func usersHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
rb.Add(nil, server.name, ERR_USERSDISABLED, client.Nick(), client.t("USERS has been disabled"))
|
|
return false
|
|
}
|
|
|
|
// VERSION
|
|
func versionHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
rb.Add(nil, server.name, RPL_VERSION, client.nick, Ver, server.name)
|
|
server.RplISupport(client, rb)
|
|
return false
|
|
}
|
|
|
|
// WEBIRC <password> <gateway> <hostname> <ip> [:flag1 flag2=x flag3]
|
|
func webircHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
// only allow unregistered clients to use this command
|
|
if client.registered || client.proxiedIP != nil {
|
|
return false
|
|
}
|
|
|
|
// process flags
|
|
var secure bool
|
|
if 4 < len(msg.Params) {
|
|
for _, x := range strings.Split(msg.Params[4], " ") {
|
|
// split into key=value
|
|
var key string
|
|
if strings.Contains(x, "=") {
|
|
y := strings.SplitN(x, "=", 2)
|
|
key, _ = y[0], y[1]
|
|
} else {
|
|
key = x
|
|
}
|
|
|
|
lkey := strings.ToLower(key)
|
|
if lkey == "tls" || lkey == "secure" {
|
|
// only accept "tls" flag if the gateway's connection to us is secure as well
|
|
if client.HasMode(modes.TLS) || client.realIP.IsLoopback() {
|
|
secure = true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
givenPassword := []byte(msg.Params[0])
|
|
for _, info := range server.Config().Server.WebIRC {
|
|
if utils.IPInNets(client.realIP, info.allowedNets) {
|
|
// confirm password and/or fingerprint
|
|
if 0 < len(info.Password) && bcrypt.CompareHashAndPassword(info.Password, givenPassword) != nil {
|
|
continue
|
|
}
|
|
if info.Certfp != "" && info.Certfp != rb.session.certfp {
|
|
continue
|
|
}
|
|
|
|
err, quitMsg := client.ApplyProxiedIP(rb.session, net.ParseIP(msg.Params[3]), secure)
|
|
if err != nil {
|
|
client.Quit(quitMsg, rb.session)
|
|
return true
|
|
} else {
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
|
|
client.Quit(client.t("WEBIRC command is not usable from your address or incorrect password given"), rb.session)
|
|
return true
|
|
}
|
|
|
|
type whoxFields uint32 // bitset to hold the WHOX field values, 'a' through 'z'
|
|
|
|
func (fields whoxFields) Add(field rune) (result whoxFields) {
|
|
index := int(field) - int('a')
|
|
if 0 <= index && index < 26 {
|
|
return fields | (1 << index)
|
|
} else {
|
|
return fields
|
|
}
|
|
}
|
|
|
|
func (fields whoxFields) Has(field rune) bool {
|
|
index := int(field) - int('a')
|
|
if 0 <= index && index < 26 {
|
|
return (fields & (1 << index)) != 0
|
|
} else {
|
|
return false
|
|
}
|
|
}
|
|
|
|
// rplWhoReply returns the WHO(X) reply between one user and another channel/user.
|
|
// who format:
|
|
// <channel> <user> <host> <server> <nick> <H|G>[*][~|&|@|%|+][B] :<hopcount> <real name>
|
|
// whox format:
|
|
// <type> <channel> <user> <ip> <host> <server> <nick> <H|G>[*][~|&|@|%|+][B] <hops> <idle> <account> <rank> :<real name>
|
|
func (client *Client) rplWhoReply(channel *Channel, target *Client, rb *ResponseBuffer, canSeeIPs, canSeeOpers, includeRFlag, isWhox bool, fields whoxFields, whoType string) {
|
|
params := []string{client.Nick()}
|
|
|
|
details := target.Details()
|
|
|
|
if fields.Has('t') {
|
|
params = append(params, whoType)
|
|
}
|
|
if fields.Has('c') {
|
|
fChannel := "*"
|
|
if channel != nil {
|
|
fChannel = channel.name
|
|
}
|
|
params = append(params, fChannel)
|
|
}
|
|
if fields.Has('u') {
|
|
params = append(params, details.username)
|
|
}
|
|
if fields.Has('i') {
|
|
fIP := "255.255.255.255"
|
|
if canSeeIPs || client == target {
|
|
// you can only see a target's IP if they're you or you're an oper
|
|
fIP = target.IPString()
|
|
}
|
|
params = append(params, fIP)
|
|
}
|
|
if fields.Has('h') {
|
|
params = append(params, details.hostname)
|
|
}
|
|
if fields.Has('s') {
|
|
params = append(params, target.server.name)
|
|
}
|
|
if fields.Has('n') {
|
|
params = append(params, details.nick)
|
|
}
|
|
if fields.Has('f') { // "flags" (away + oper state + channel status prefix + bot)
|
|
var flags strings.Builder
|
|
if away, _ := target.Away(); away {
|
|
flags.WriteRune('G') // Gone
|
|
} else {
|
|
flags.WriteRune('H') // Here
|
|
}
|
|
|
|
if target.HasMode(modes.Operator) && operStatusVisible(client, target, canSeeOpers) {
|
|
flags.WriteRune('*')
|
|
}
|
|
|
|
if channel != nil {
|
|
flags.WriteString(channel.ClientPrefixes(target, rb.session.capabilities.Has(caps.MultiPrefix)))
|
|
}
|
|
|
|
if target.HasMode(modes.Bot) {
|
|
flags.WriteRune('B')
|
|
}
|
|
|
|
if includeRFlag && details.account != "" {
|
|
flags.WriteRune('r')
|
|
}
|
|
|
|
params = append(params, flags.String())
|
|
|
|
}
|
|
if fields.Has('d') { // server hops from us to target
|
|
params = append(params, "0")
|
|
}
|
|
if fields.Has('l') {
|
|
params = append(params, fmt.Sprintf("%d", target.IdleSeconds()))
|
|
}
|
|
if fields.Has('a') {
|
|
fAccount := "0"
|
|
if details.accountName != "*" {
|
|
// WHOX uses "0" to mean "no account"
|
|
fAccount = details.accountName
|
|
}
|
|
params = append(params, fAccount)
|
|
}
|
|
if fields.Has('o') { // target's channel power level
|
|
//TODO: implement this
|
|
params = append(params, "0")
|
|
}
|
|
if fields.Has('r') {
|
|
params = append(params, details.realname)
|
|
}
|
|
|
|
numeric := RPL_WHOSPCRPL
|
|
if !isWhox {
|
|
numeric = RPL_WHOREPLY
|
|
// if this isn't WHOX, stick hops + realname at the end
|
|
params = append(params, "0 "+details.realname)
|
|
}
|
|
|
|
rb.Add(nil, client.server.name, numeric, params...)
|
|
}
|
|
|
|
// WHO <mask> [<filter>%<fields>,<type>]
|
|
func whoHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
mask := msg.Params[0]
|
|
var err error
|
|
if mask == "" {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.nick, "WHO", client.t("First param must be a mask or channel"))
|
|
return false
|
|
} else if mask[0] == '#' {
|
|
mask, err = CasefoldChannel(msg.Params[0])
|
|
} else {
|
|
mask, err = CanonicalizeMaskWildcard(mask)
|
|
}
|
|
|
|
if err != nil {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNERROR, client.Nick(), "WHO", client.t("Mask isn't valid"))
|
|
return false
|
|
}
|
|
|
|
// include the r flag only if nick and account are synonymous
|
|
config := server.Config()
|
|
includeRFlag := config.Accounts.NickReservation.Enabled &&
|
|
config.Accounts.NickReservation.Method == NickEnforcementStrict &&
|
|
!config.Accounts.NickReservation.AllowCustomEnforcement &&
|
|
config.Accounts.NickReservation.ForceNickEqualsAccount
|
|
|
|
sFields := "cuhsnf"
|
|
whoType := "0"
|
|
isWhox := false
|
|
if len(msg.Params) > 1 && strings.Contains(msg.Params[1], "%") {
|
|
isWhox = true
|
|
whoxData := msg.Params[1]
|
|
fieldStart := strings.Index(whoxData, "%")
|
|
sFields = whoxData[fieldStart+1:]
|
|
|
|
typeIndex := strings.Index(sFields, ",")
|
|
if typeIndex > -1 && typeIndex < (len(sFields)-1) { // make sure there's , and a value after it
|
|
whoType = sFields[typeIndex+1:]
|
|
sFields = strings.ToLower(sFields[:typeIndex])
|
|
}
|
|
}
|
|
var fields whoxFields
|
|
for _, field := range sFields {
|
|
fields = fields.Add(field)
|
|
}
|
|
|
|
//TODO(dan): is this used and would I put this param in the Modern doc?
|
|
// if not, can we remove it?
|
|
//var operatorOnly bool
|
|
//if len(msg.Params) > 1 && msg.Params[1] == "o" {
|
|
// operatorOnly = true
|
|
//}
|
|
|
|
oper := client.Oper()
|
|
hasPrivs := oper.HasRoleCapab("sajoin")
|
|
canSeeIPs := oper.HasRoleCapab("ban")
|
|
if mask[0] == '#' {
|
|
channel := server.channels.Get(mask)
|
|
if channel != nil {
|
|
isJoined := channel.hasClient(client)
|
|
if !channel.flags.HasMode(modes.Secret) || isJoined || hasPrivs {
|
|
var members []*Client
|
|
if hasPrivs {
|
|
members = channel.Members()
|
|
} else {
|
|
members = channel.auditoriumFriends(client)
|
|
}
|
|
for _, member := range members {
|
|
if !member.HasMode(modes.Invisible) || isJoined || hasPrivs {
|
|
client.rplWhoReply(channel, member, rb, canSeeIPs, oper != nil, includeRFlag, isWhox, fields, whoType)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// Construct set of channels the client is in.
|
|
userChannels := make(ChannelSet)
|
|
for _, channel := range client.Channels() {
|
|
userChannels[channel] = empty{}
|
|
}
|
|
|
|
// Another client is a friend if they share at least one channel, or they are the same client.
|
|
isFriend := func(otherClient *Client) bool {
|
|
if client == otherClient {
|
|
return true
|
|
}
|
|
|
|
for _, channel := range otherClient.Channels() {
|
|
if channel.flags.HasMode(modes.Auditorium) {
|
|
return false // TODO this should respect +v etc.
|
|
}
|
|
if _, present := userChannels[channel]; present {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
for mclient := range server.clients.FindAll(mask) {
|
|
if hasPrivs || !mclient.HasMode(modes.Invisible) || isFriend(mclient) {
|
|
client.rplWhoReply(nil, mclient, rb, canSeeIPs, oper != nil, includeRFlag, isWhox, fields, whoType)
|
|
}
|
|
}
|
|
}
|
|
|
|
rb.Add(nil, server.name, RPL_ENDOFWHO, client.nick, mask, client.t("End of WHO list"))
|
|
return false
|
|
}
|
|
|
|
// WHOIS [<target>] <mask>{,<mask>}
|
|
func whoisHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
var masksString string
|
|
//var target string
|
|
|
|
if len(msg.Params) > 1 {
|
|
//target = msg.Params[0]
|
|
masksString = msg.Params[1]
|
|
} else {
|
|
masksString = msg.Params[0]
|
|
}
|
|
|
|
handleService := func(nick string) bool {
|
|
cfnick, _ := CasefoldName(nick)
|
|
service, ok := OragonoServices[cfnick]
|
|
hostname := "localhost"
|
|
config := server.Config()
|
|
if config.Server.OverrideServicesHostname != "" {
|
|
hostname = config.Server.OverrideServicesHostname
|
|
}
|
|
if !ok {
|
|
return false
|
|
}
|
|
clientNick := client.Nick()
|
|
rb.Add(nil, client.server.name, RPL_WHOISUSER, clientNick, service.Name, service.Name, hostname, "*", fmt.Sprintf(client.t("Network service, for more info /msg %s HELP"), service.Name))
|
|
// #1080:
|
|
rb.Add(nil, client.server.name, RPL_WHOISOPERATOR, clientNick, service.Name, client.t("is a network service"))
|
|
// hehe
|
|
if client.HasMode(modes.TLS) {
|
|
rb.Add(nil, client.server.name, RPL_WHOISSECURE, clientNick, service.Name, client.t("is using a secure connection"))
|
|
}
|
|
return true
|
|
}
|
|
|
|
hasPrivs := client.HasRoleCapabs("samode")
|
|
if hasPrivs {
|
|
for _, mask := range strings.Split(masksString, ",") {
|
|
matches := server.clients.FindAll(mask)
|
|
if len(matches) == 0 && !handleService(mask) {
|
|
rb.Add(nil, client.server.name, ERR_NOSUCHNICK, client.Nick(), utils.SafeErrorParam(mask), client.t("No such nick"))
|
|
continue
|
|
}
|
|
for mclient := range matches {
|
|
client.getWhoisOf(mclient, hasPrivs, rb)
|
|
}
|
|
}
|
|
} else {
|
|
// only get the first request; also require a nick, not a mask
|
|
nick := strings.Split(masksString, ",")[0]
|
|
mclient := server.clients.Get(nick)
|
|
if mclient != nil {
|
|
client.getWhoisOf(mclient, hasPrivs, rb)
|
|
} else if !handleService(nick) {
|
|
rb.Add(nil, client.server.name, ERR_NOSUCHNICK, client.Nick(), utils.SafeErrorParam(masksString), client.t("No such nick"))
|
|
}
|
|
// fall through, ENDOFWHOIS is always sent
|
|
}
|
|
rb.Add(nil, server.name, RPL_ENDOFWHOIS, client.nick, utils.SafeErrorParam(masksString), client.t("End of /WHOIS list"))
|
|
return false
|
|
}
|
|
|
|
// WHOWAS <nickname> [<count> [<server>]]
|
|
func whowasHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
nicknames := strings.Split(msg.Params[0], ",")
|
|
|
|
// 0 means "all the entries", as does a negative number
|
|
var count int
|
|
if len(msg.Params) > 1 {
|
|
count, _ = strconv.Atoi(msg.Params[1])
|
|
if count < 0 {
|
|
count = 0
|
|
}
|
|
}
|
|
//var target string
|
|
//if len(msg.Params) > 2 {
|
|
// target = msg.Params[2]
|
|
//}
|
|
cnick := client.Nick()
|
|
for _, nickname := range nicknames {
|
|
if len(nickname) == 0 {
|
|
continue
|
|
}
|
|
results := server.whoWas.Find(nickname, count)
|
|
if len(results) == 0 {
|
|
rb.Add(nil, server.name, ERR_WASNOSUCHNICK, cnick, utils.SafeErrorParam(nickname), client.t("There was no such nickname"))
|
|
} else {
|
|
for _, whoWas := range results {
|
|
rb.Add(nil, server.name, RPL_WHOWASUSER, cnick, whoWas.nick, whoWas.username, whoWas.hostname, "*", whoWas.realname)
|
|
}
|
|
}
|
|
rb.Add(nil, server.name, RPL_ENDOFWHOWAS, cnick, utils.SafeErrorParam(nickname), client.t("End of WHOWAS"))
|
|
}
|
|
return false
|
|
}
|
|
|
|
// ZNC <module> [params]
|
|
func zncHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
params := msg.Params[1:]
|
|
// #1205: compatibility with Palaver, which sends `ZNC *playback :play ...`
|
|
if len(params) == 1 && strings.IndexByte(params[0], ' ') != -1 {
|
|
params = strings.Fields(params[0])
|
|
}
|
|
zncModuleHandler(client, msg.Params[0], params, rb)
|
|
return false
|
|
}
|
|
|
|
// fake handler for unknown commands
|
|
func unknownCommandHandler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
rb.Add(nil, server.name, ERR_UNKNOWNCOMMAND, client.Nick(), utils.SafeErrorParam(msg.Command), client.t("Unknown command"))
|
|
return false
|
|
}
|
|
|
|
// fake handler for invalid utf8
|
|
func invalidUtf8Handler(server *Server, client *Client, msg ircmsg.Message, rb *ResponseBuffer) bool {
|
|
rb.Add(nil, server.name, "FAIL", utils.SafeErrorParam(msg.Command), "INVALID_UTF8", client.t("Message rejected for containing invalid UTF-8"))
|
|
return false
|
|
}
|