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- // Copyright (c) 2017 Daniel Oaks <daniel@danieloaks.net>
- // released under the MIT license
-
- package irc
-
- import (
- "fmt"
- "regexp"
- "strconv"
- "strings"
- "time"
-
- "github.com/goshuirc/irc-go/ircfmt"
-
- "github.com/oragono/oragono/irc/passwd"
- "github.com/oragono/oragono/irc/sno"
- "github.com/oragono/oragono/irc/utils"
- )
-
- // "enabled" callbacks for specific nickserv commands
- func servCmdRequiresAccreg(config *Config) bool {
- return config.Accounts.Registration.Enabled
- }
-
- func servCmdRequiresAuthEnabled(config *Config) bool {
- return config.Accounts.AuthenticationEnabled
- }
-
- func servCmdRequiresNickRes(config *Config) bool {
- return config.Accounts.AuthenticationEnabled && config.Accounts.NickReservation.Enabled
- }
-
- func servCmdRequiresBouncerEnabled(config *Config) bool {
- return config.Accounts.Multiclient.Enabled
- }
-
- const (
- nsPrefix = "NickServ!NickServ@localhost"
- )
-
- const nickservHelp = `NickServ lets you register, log in to, and manage an account.`
-
- var (
- nickservCommands = map[string]*serviceCommand{
- "clients": {
- handler: nsClientsHandler,
- help: `Syntax: $bCLIENTS LIST [nickname]$b
-
- CLIENTS LIST shows information about the clients currently attached, via
- the server's multiclient functionality, to your nickname. An administrator
- can use this command to list another user's clients.
-
- Syntax: $bCLIENTS LOGOUT [nickname] [client_id/all]$b
-
- CLIENTS LOGOUT detaches a single client, or all other clients currently
- attached, via the server's multiclient functionality, to your nickname. An
- administrator can use this command to logout another user's clients.`,
- helpShort: `$bCLIENTS$b can list and logout the sessions attached to a nickname.`,
- enabled: servCmdRequiresBouncerEnabled,
- minParams: 1,
- },
- "drop": {
- handler: nsDropHandler,
- help: `Syntax: $bDROP [nickname]$b
-
- DROP de-links the given (or your current) nickname from your user account.`,
- helpShort: `$bDROP$b de-links your current (or the given) nickname from your user account.`,
- enabled: servCmdRequiresNickRes,
- authRequired: true,
- },
- "enforce": {
- hidden: true,
- handler: nsEnforceHandler,
- help: `Syntax: $bENFORCE [method]$b
-
- ENFORCE is an alias for $bGET enforce$b and $bSET enforce$b. See the help
- entry for $bSET$b for more information.`,
- authRequired: true,
- enabled: servCmdRequiresNickRes,
- },
- "ghost": {
- handler: nsGhostHandler,
- help: `Syntax: $bGHOST <nickname>$b
-
- GHOST disconnects the given user from the network if they're logged in with the
- same user account, letting you reclaim your nickname.`,
- helpShort: `$bGHOST$b reclaims your nickname.`,
- enabled: servCmdRequiresNickRes,
- authRequired: true,
- minParams: 1,
- },
- "group": {
- handler: nsGroupHandler,
- help: `Syntax: $bGROUP$b
-
- GROUP links your current nickname with your logged-in account, so other people
- will not be able to use it.`,
- helpShort: `$bGROUP$b links your current nickname to your user account.`,
- enabled: servCmdRequiresNickRes,
- authRequired: true,
- },
- "identify": {
- handler: nsIdentifyHandler,
- help: `Syntax: $bIDENTIFY <username> [password]$b
-
- IDENTIFY lets you login to the given username using either password auth, or
- certfp (your client certificate) if a password is not given.`,
- helpShort: `$bIDENTIFY$b lets you login to your account.`,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 1,
- },
- "list": {
- handler: nsListHandler,
- help: `Syntax: $bLIST [regex]$b
-
- LIST returns the list of registered nicknames, which match the given regex.
- If no regex is provided, all registered nicknames are returned.`,
- helpShort: `$bLIST$b searches the list of registered nicknames.`,
- enabled: servCmdRequiresAuthEnabled,
- capabs: []string{"accreg"},
- minParams: 0,
- },
- "info": {
- handler: nsInfoHandler,
- help: `Syntax: $bINFO [username]$b
-
- INFO gives you information about the given (or your own) user account.`,
- helpShort: `$bINFO$b gives you information on a user account.`,
- },
- "register": {
- handler: nsRegisterHandler,
- // TODO: "email" is an oversimplification here; it's actually any callback, e.g.,
- // person@example.com, mailto:person@example.com, tel:16505551234.
- help: `Syntax: $bREGISTER <password> [email]$b
-
- REGISTER lets you register your current nickname as a user account. If the
- server allows anonymous registration, you can omit the e-mail address.
-
- If you are currently logged in with a TLS client certificate and wish to use
- it instead of a password to log in, send * as the password.`,
- helpShort: `$bREGISTER$b lets you register a user account.`,
- enabled: servCmdRequiresAccreg,
- minParams: 1,
- maxParams: 2,
- },
- "sadrop": {
- handler: nsDropHandler,
- help: `Syntax: $bSADROP <nickname>$b
-
- SADROP forcibly de-links the given nickname from the attached user account.`,
- helpShort: `$bSADROP$b forcibly de-links the given nickname from its user account.`,
- capabs: []string{"accreg"},
- enabled: servCmdRequiresNickRes,
- minParams: 1,
- },
- "saregister": {
- handler: nsSaregisterHandler,
- help: `Syntax: $bSAREGISTER <username> [password]$b
-
- SAREGISTER registers an account on someone else's behalf.
- This is for use in configurations that require SASL for all connections;
- an administrator can set use this command to set up user accounts.`,
- helpShort: `$bSAREGISTER$b registers an account on someone else's behalf.`,
- enabled: servCmdRequiresAuthEnabled,
- capabs: []string{"accreg"},
- minParams: 1,
- },
- "sessions": {
- hidden: true,
- handler: nsClientsHandler,
- help: `Syntax: $bSESSIONS [nickname]$b
-
- SESSIONS is an alias for $bCLIENTS LIST$b. See the help entry for $bCLIENTS$b
- for more information.`,
- enabled: servCmdRequiresBouncerEnabled,
- },
- "unregister": {
- handler: nsUnregisterHandler,
- help: `Syntax: $bUNREGISTER <username> [code]$b
-
- UNREGISTER lets you delete your user account (or someone else's, if you're an
- IRC operator with the correct permissions). To prevent accidental
- unregistrations, a verification code is required; invoking the command without
- a code will display the necessary code.`,
- helpShort: `$bUNREGISTER$b lets you delete your user account.`,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 1,
- },
- "erase": {
- handler: nsUnregisterHandler,
- help: `Syntax: $bERASE <username> [code]$b
-
- ERASE deletes all records of an account, allowing it to be re-registered.
- This should be used with caution, because it violates an expectation that
- account names are permanent identifiers. Typically, UNREGISTER should be
- used instead. A confirmation code is required; invoking the command
- without a code will display the necessary code.`,
- helpShort: `$bERASE$b erases all records of an account, allowing reuse.`,
- enabled: servCmdRequiresAuthEnabled,
- capabs: []string{"accreg"},
- minParams: 1,
- },
- "verify": {
- handler: nsVerifyHandler,
- help: `Syntax: $bVERIFY <username> <code>$b
-
- VERIFY lets you complete an account registration, if the server requires email
- or other verification.`,
- helpShort: `$bVERIFY$b lets you complete account registration.`,
- enabled: servCmdRequiresAccreg,
- minParams: 2,
- },
- "passwd": {
- handler: nsPasswdHandler,
- help: `Syntax: $bPASSWD <current> <new> <new_again>$b
- Or: $bPASSWD <username> <new>$b
-
- PASSWD lets you change your account password. You must supply your current
- password and confirm the new one by typing it twice. If you're an IRC operator
- with the correct permissions, you can use PASSWD to reset someone else's
- password by supplying their username and then the desired password. To
- indicate an empty password, use * instead.`,
- helpShort: `$bPASSWD$b lets you change your password.`,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 2,
- },
- "get": {
- handler: nsGetHandler,
- help: `Syntax: $bGET <setting>$b
-
- GET queries the current values of your account settings. For more information
- on the settings and their possible values, see HELP SET.`,
- helpShort: `$bGET$b queries the current values of your account settings`,
- authRequired: true,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 1,
- },
- "saget": {
- handler: nsGetHandler,
- help: `Syntax: $bSAGET <account> <setting>$b
-
- SAGET queries the values of someone else's account settings. For more
- information on the settings and their possible values, see HELP SET.`,
- helpShort: `$bSAGET$b queries the current values of another user's account settings`,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 2,
- capabs: []string{"accreg"},
- },
- "set": {
- handler: nsSetHandler,
- helpShort: `$bSET$b modifies your account settings`,
- // these are broken out as separate strings so they can be translated separately
- helpStrings: []string{
- `Syntax $bSET <setting> <value>$b
-
- SET modifies your account settings. The following settings are available:`,
-
- `$bENFORCE$b
- 'enforce' lets you specify a custom enforcement mechanism for your registered
- nicknames. Your options are:
- 1. 'none' [no enforcement, overriding the server default]
- 2. 'strict' [you must already be authenticated to use the nick]
- 3. 'default' [use the server default]`,
-
- `$bMULTICLIENT$b
- If 'multiclient' is enabled and you are already logged in and using a nick, a
- second client of yours that authenticates with SASL and requests the same nick
- is allowed to attach to the nick as well (this is comparable to the behavior
- of IRC "bouncers" like ZNC). Your options are 'on' (allow this behavior),
- 'off' (disallow it), and 'default' (use the server default value).`,
-
- `$bAUTOREPLAY-LINES$b
- 'autoreplay-lines' controls the number of lines of channel history that will
- be replayed to you automatically when joining a channel. Your options are any
- positive number, 0 to disable the feature, and 'default' to use the server
- default.`,
-
- `$bREPLAY-JOINS$b
- 'replay-joins' controls whether replayed channel history will include
- lines for join and part. This provides more information about the context of
- messages, but may be spammy. Your options are 'always', 'never', and the default
- of 'commands-only' (the messages will be replayed in /HISTORY output, but not
- during autoreplay).`,
- `$bALWAYS-ON$b
- 'always-on' controls whether your nickname/identity will remain active
- even while you are disconnected from the server. Your options are 'true',
- 'false', and 'default' (use the server default value).`,
- `$bAUTOREPLAY-MISSED$b
- 'autoreplay-missed' is only effective for always-on clients. If enabled,
- if you have at most one active session, the server will remember the time
- you disconnect and then replay missed messages to you when you reconnect.
- Your options are 'on' and 'off'.`,
- `$bDM-HISTORY$b
- 'dm-history' is only effective for always-on clients. It lets you control
- how the history of your direct messages is stored. Your options are:
- 1. 'off' [no history]
- 2. 'ephemeral' [a limited amount of temporary history, not stored on disk]
- 3. 'on' [history stored in a permanent database, if available]
- 4. 'default' [use the server default]`,
- `$bAUTO-AWAY$b
- 'auto-away' is only effective for always-on clients. If enabled, you will
- automatically be marked away when all your sessions are disconnected, and
- automatically return from away when you connect again.`,
- },
- authRequired: true,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 2,
- },
- "saset": {
- handler: nsSetHandler,
- help: `Syntax: $bSASET <account> <setting> <value>$b
-
- SASET modifies the values of someone else's account settings. For more
- information on the settings and their possible values, see HELP SET.`,
- helpShort: `$bSASET$b modifies another user's account settings`,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 3,
- capabs: []string{"accreg"},
- },
- "cert": {
- handler: nsCertHandler,
- help: `Syntax: $bCERT <LIST | ADD | DEL> [account] [certfp]$b
-
- CERT examines or modifies the TLS certificate fingerprints that can be used to
- log into an account. Specifically, $bCERT LIST$b lists the authorized
- fingerprints, $bCERT ADD <fingerprint>$b adds a new fingerprint, and
- $bCERT DEL <fingerprint>$b removes a fingerprint. If you're an IRC operator
- with the correct permissions, you can act on another user's account, for
- example with $bCERT ADD <account> <fingerprint>$b.`,
- helpShort: `$bCERT$b controls a user account's certificate fingerprints`,
- enabled: servCmdRequiresAuthEnabled,
- minParams: 1,
- },
- "suspend": {
- handler: nsSuspendHandler,
- help: `Syntax: $bSUSPEND <nickname>$b
-
- SUSPEND disables an account and disconnects the associated clients.`,
- helpShort: `$bSUSPEND$b disables an account and disconnects the clients`,
- minParams: 1,
- capabs: []string{"accreg"},
- },
- "unsuspend": {
- handler: nsUnsuspendHandler,
- help: `Syntax: $bUNSUSPEND <nickname>$b
-
- UNSUSPEND reverses a previous SUSPEND, restoring access to the account.`,
- helpShort: `$bUNSUSPEND$b restores access to a suspended account`,
- minParams: 1,
- capabs: []string{"accreg"},
- },
- }
- )
-
- // nsNotice sends the client a notice from NickServ
- func nsNotice(rb *ResponseBuffer, text string) {
- // XXX i can't figure out how to use OragonoServices[servicename].prefix here
- // without creating a compile-time initialization loop
- rb.Add(nil, nsPrefix, "NOTICE", rb.target.Nick(), text)
- }
-
- func nsGetHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- var account string
- if command == "saget" {
- account = params[0]
- params = params[1:]
- } else {
- account = client.Account()
- }
-
- accountData, err := server.accounts.LoadAccount(account)
- if err == errAccountDoesNotExist {
- nsNotice(rb, client.t("No such account"))
- return
- } else if err != nil {
- nsNotice(rb, client.t("Error loading account data"))
- return
- }
-
- displaySetting(params[0], accountData.Settings, client, rb)
- }
-
- func displaySetting(settingName string, settings AccountSettings, client *Client, rb *ResponseBuffer) {
- config := client.server.Config()
- switch strings.ToLower(settingName) {
- case "enforce":
- storedValue := settings.NickEnforcement
- serializedStoredValue := nickReservationToString(storedValue)
- nsNotice(rb, fmt.Sprintf(client.t("Your stored nickname enforcement setting is: %s"), serializedStoredValue))
- serializedActualValue := nickReservationToString(configuredEnforcementMethod(config, storedValue))
- nsNotice(rb, fmt.Sprintf(client.t("Given current server settings, your nickname is enforced with: %s"), serializedActualValue))
- case "autoreplay-lines":
- if settings.AutoreplayLines == nil {
- nsNotice(rb, fmt.Sprintf(client.t("You will receive the server default of %d lines of autoreplayed history"), config.History.AutoreplayOnJoin))
- } else {
- nsNotice(rb, fmt.Sprintf(client.t("You will receive %d lines of autoreplayed history"), *settings.AutoreplayLines))
- }
- case "replay-joins":
- switch settings.ReplayJoins {
- case ReplayJoinsCommandsOnly:
- nsNotice(rb, client.t("You will see JOINs and PARTs in /HISTORY output, but not in autoreplay"))
- case ReplayJoinsAlways:
- nsNotice(rb, client.t("You will see JOINs and PARTs in /HISTORY output and in autoreplay"))
- case ReplayJoinsNever:
- nsNotice(rb, client.t("You will not see JOINs and PARTs in /HISTORY output or in autoreplay"))
- }
- case "multiclient":
- if !config.Accounts.Multiclient.Enabled {
- nsNotice(rb, client.t("This feature has been disabled by the server administrators"))
- } else {
- switch settings.AllowBouncer {
- case MulticlientAllowedServerDefault:
- if config.Accounts.Multiclient.AllowedByDefault {
- nsNotice(rb, client.t("Multiclient functionality is currently enabled for your account, but you can opt out"))
- } else {
- nsNotice(rb, client.t("Multiclient functionality is currently disabled for your account, but you can opt in"))
- }
- case MulticlientDisallowedByUser:
- nsNotice(rb, client.t("Multiclient functionality is currently disabled for your account"))
- case MulticlientAllowedByUser:
- nsNotice(rb, client.t("Multiclient functionality is currently enabled for your account"))
- }
- }
- case "always-on":
- stored := settings.AlwaysOn
- actual := persistenceEnabled(config.Accounts.Multiclient.AlwaysOn, stored)
- nsNotice(rb, fmt.Sprintf(client.t("Your stored always-on setting is: %s"), persistentStatusToString(stored)))
- if actual {
- nsNotice(rb, client.t("Given current server settings, your client is always-on"))
- } else {
- nsNotice(rb, client.t("Given current server settings, your client is not always-on"))
- }
- case "autoreplay-missed":
- stored := settings.AutoreplayMissed
- if stored {
- alwaysOn := persistenceEnabled(config.Accounts.Multiclient.AlwaysOn, settings.AlwaysOn)
- if alwaysOn {
- nsNotice(rb, client.t("Autoreplay of missed messages is enabled"))
- } else {
- nsNotice(rb, client.t("You have enabled autoreplay of missed messages, but you can't receive them because your client isn't set to always-on"))
- }
- } else {
- nsNotice(rb, client.t("Your account is not configured to receive autoreplayed missed messages"))
- }
- case "auto-away":
- stored := settings.AutoAway
- alwaysOn := persistenceEnabled(config.Accounts.Multiclient.AlwaysOn, settings.AlwaysOn)
- actual := persistenceEnabled(config.Accounts.Multiclient.AutoAway, settings.AutoAway)
- nsNotice(rb, fmt.Sprintf(client.t("Your stored auto-away setting is: %s"), persistentStatusToString(stored)))
- if actual && alwaysOn {
- nsNotice(rb, client.t("Given current server settings, auto-away is enabled for your client"))
- } else if actual && !alwaysOn {
- nsNotice(rb, client.t("Because your client is not always-on, auto-away is disabled"))
- } else if !actual {
- nsNotice(rb, client.t("Given current server settings, auto-away is disabled for your client"))
- }
- case "dm-history":
- effectiveValue := historyEnabled(config.History.Persistent.DirectMessages, settings.DMHistory)
- nsNotice(rb, fmt.Sprintf(client.t("Your stored direct message history setting is: %s"), historyStatusToString(settings.DMHistory)))
- nsNotice(rb, fmt.Sprintf(client.t("Given current server settings, your direct message history setting is: %s"), historyStatusToString(effectiveValue)))
-
- default:
- nsNotice(rb, client.t("No such setting"))
- }
- }
-
- func nsSetHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- var account string
- if command == "saset" {
- account = params[0]
- params = params[1:]
- } else {
- account = client.Account()
- }
-
- var munger settingsMunger
- var finalSettings AccountSettings
- var err error
- switch strings.ToLower(params[0]) {
- case "pass", "password":
- nsNotice(rb, client.t("To change a password, use the PASSWD command. For details, /msg NickServ HELP PASSWD"))
- return
- case "enforce":
- var method NickEnforcementMethod
- method, err = nickReservationFromString(params[1])
- if err != nil {
- err = errInvalidParams
- break
- }
- // updating enforcement settings is special-cased, because it requires
- // an update to server.accounts.accountToMethod
- finalSettings, err = server.accounts.SetEnforcementStatus(account, method)
- if err == nil {
- finalSettings.NickEnforcement = method // success
- }
- case "autoreplay-lines":
- var newValue *int
- if strings.ToLower(params[1]) != "default" {
- val, err_ := strconv.Atoi(params[1])
- if err_ != nil || val < 0 {
- err = errInvalidParams
- break
- }
- newValue = new(int)
- *newValue = val
- }
- munger = func(in AccountSettings) (out AccountSettings, err error) {
- out = in
- out.AutoreplayLines = newValue
- return
- }
- case "multiclient":
- var newValue MulticlientAllowedSetting
- if strings.ToLower(params[1]) == "default" {
- newValue = MulticlientAllowedServerDefault
- } else {
- var enabled bool
- enabled, err = utils.StringToBool(params[1])
- if enabled {
- newValue = MulticlientAllowedByUser
- } else {
- newValue = MulticlientDisallowedByUser
- }
- }
- if err == nil {
- munger = func(in AccountSettings) (out AccountSettings, err error) {
- out = in
- out.AllowBouncer = newValue
- return
- }
- }
- case "replay-joins":
- var newValue ReplayJoinsSetting
- newValue, err = replayJoinsSettingFromString(params[1])
- if err == nil {
- munger = func(in AccountSettings) (out AccountSettings, err error) {
- out = in
- out.ReplayJoins = newValue
- return
- }
- }
- case "always-on":
- // #821: it's problematic to alter the value of always-on if you're not
- // the (actual or potential) always-on client yourself. make an exception
- // for `saset` to give operators an escape hatch (any consistency problems
- // can probably be fixed by restarting the server):
- if command != "saset" {
- details := client.Details()
- if details.nick != details.accountName {
- err = errNickAccountMismatch
- }
- }
- if err == nil {
- var newValue PersistentStatus
- newValue, err = persistentStatusFromString(params[1])
- // "opt-in" and "opt-out" don't make sense as user preferences
- if err == nil && newValue != PersistentOptIn && newValue != PersistentOptOut {
- munger = func(in AccountSettings) (out AccountSettings, err error) {
- out = in
- out.AlwaysOn = newValue
- return
- }
- }
- }
- case "autoreplay-missed":
- var newValue bool
- newValue, err = utils.StringToBool(params[1])
- if err == nil {
- munger = func(in AccountSettings) (out AccountSettings, err error) {
- out = in
- out.AutoreplayMissed = newValue
- return
- }
- }
- case "auto-away":
- var newValue PersistentStatus
- newValue, err = persistentStatusFromString(params[1])
- // "opt-in" and "opt-out" don't make sense as user preferences
- if err == nil && newValue != PersistentOptIn && newValue != PersistentOptOut {
- munger = func(in AccountSettings) (out AccountSettings, err error) {
- out = in
- out.AutoAway = newValue
- return
- }
- }
- case "dm-history":
- var newValue HistoryStatus
- newValue, err = historyStatusFromString(params[1])
- if err == nil {
- munger = func(in AccountSettings) (out AccountSettings, err error) {
- out = in
- out.DMHistory = newValue
- return
- }
- }
- default:
- err = errInvalidParams
- }
-
- if munger != nil {
- finalSettings, err = server.accounts.ModifyAccountSettings(account, munger)
- }
-
- switch err {
- case nil:
- nsNotice(rb, client.t("Successfully changed your account settings"))
- displaySetting(params[0], finalSettings, client, rb)
- case errInvalidParams, errAccountDoesNotExist, errFeatureDisabled, errAccountUnverified, errAccountUpdateFailed:
- nsNotice(rb, client.t(err.Error()))
- case errNickAccountMismatch:
- nsNotice(rb, fmt.Sprintf(client.t("Your nickname must match your account name %s exactly to modify this setting. Try changing it with /NICK, or logging out and back in with the correct nickname."), client.AccountName()))
- default:
- // unknown error
- nsNotice(rb, client.t("An error occurred"))
- }
- }
-
- func nsDropHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- sadrop := command == "sadrop"
- var nick string
- if len(params) > 0 {
- nick = params[0]
- } else {
- nick = client.NickCasefolded()
- }
-
- err := server.accounts.SetNickReserved(client, nick, sadrop, false)
- if err == nil {
- nsNotice(rb, fmt.Sprintf(client.t("Successfully ungrouped nick %s with your account"), nick))
- } else if err == errAccountNotLoggedIn {
- nsNotice(rb, client.t("You're not logged into an account"))
- } else if err == errAccountCantDropPrimaryNick {
- nsNotice(rb, client.t("You can't ungroup your primary nickname (try unregistering your account instead)"))
- } else {
- nsNotice(rb, client.t("Could not ungroup nick"))
- }
- }
-
- func nsGhostHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- nick := params[0]
-
- ghost := server.clients.Get(nick)
- if ghost == nil {
- nsNotice(rb, client.t("No such nick"))
- return
- } else if ghost == client {
- nsNotice(rb, client.t("You can't GHOST yourself (try /QUIT instead)"))
- return
- } else if ghost.AlwaysOn() {
- nsNotice(rb, client.t("You can't GHOST an always-on client"))
- return
- }
-
- authorized := false
- account := client.Account()
- if account != "" {
- // the user must either own the nick, or the target client
- authorized = (server.accounts.NickToAccount(nick) == account) || (ghost.Account() == account)
- }
- if !authorized {
- nsNotice(rb, client.t("You don't own that nick"))
- return
- }
-
- ghost.Quit(fmt.Sprintf(ghost.t("GHOSTed by %s"), client.Nick()), nil)
- ghost.destroy(nil)
- }
-
- func nsGroupHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- nick := client.Nick()
- err := server.accounts.SetNickReserved(client, nick, false, true)
- if err == nil {
- nsNotice(rb, fmt.Sprintf(client.t("Successfully grouped nick %s with your account"), nick))
- } else if err == errAccountTooManyNicks {
- nsNotice(rb, client.t("You have too many nicks reserved already (you can remove some with /NS DROP)"))
- } else if err == errNicknameReserved {
- nsNotice(rb, client.t("That nickname is already reserved by someone else"))
- } else {
- nsNotice(rb, client.t("Error reserving nickname"))
- }
- }
-
- func nsLoginThrottleCheck(client *Client, rb *ResponseBuffer) (success bool) {
- throttled, remainingTime := client.checkLoginThrottle()
- if throttled {
- nsNotice(rb, fmt.Sprintf(client.t("Please wait at least %v and try again"), remainingTime))
- }
- return !throttled
- }
-
- func nsIdentifyHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- if client.LoggedIntoAccount() {
- nsNotice(rb, client.t("You're already logged into an account"))
- return
- }
-
- var err error
- loginSuccessful := false
-
- var username, passphrase string
- if len(params) == 1 {
- if rb.session.certfp != "" {
- username = params[0]
- } else {
- // XXX undocumented compatibility mode with other nickservs, allowing
- // /msg NickServ identify passphrase
- username = client.NickCasefolded()
- passphrase = params[0]
- }
- } else {
- username = params[0]
- passphrase = params[1]
- }
-
- // try passphrase
- if passphrase != "" {
- err = server.accounts.AuthenticateByPassphrase(client, username, passphrase)
- loginSuccessful = (err == nil)
- }
-
- // try certfp
- if !loginSuccessful && rb.session.certfp != "" {
- err = server.accounts.AuthenticateByCertificate(client, rb.session.certfp, rb.session.peerCerts, "")
- loginSuccessful = (err == nil)
- }
-
- nickFixupFailed := false
- if loginSuccessful {
- if !fixupNickEqualsAccount(client, rb, server.Config()) {
- loginSuccessful = false
- // fixupNickEqualsAccount sends its own error message, don't send another
- nickFixupFailed = true
- }
- }
-
- if loginSuccessful {
- sendSuccessfulAccountAuth(client, rb, true, true)
- } else if !nickFixupFailed {
- nsNotice(rb, fmt.Sprintf(client.t("Authentication failed: %s"), authErrorToMessage(server, err)))
- }
- }
-
- func nsListHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- if !client.HasRoleCapabs("accreg") {
- nsNotice(rb, client.t("Insufficient privileges"))
- return
- }
-
- var searchRegex *regexp.Regexp
- if len(params) > 0 {
- var err error
- searchRegex, err = regexp.Compile(params[0])
- if err != nil {
- nsNotice(rb, client.t("Invalid regex"))
- return
- }
- }
-
- nsNotice(rb, ircfmt.Unescape(client.t("*** $bNickServ LIST$b ***")))
-
- nicks := server.accounts.AllNicks()
- for _, nick := range nicks {
- if searchRegex == nil || searchRegex.MatchString(nick) {
- nsNotice(rb, fmt.Sprintf(" %s", nick))
- }
- }
-
- nsNotice(rb, ircfmt.Unescape(client.t("*** $bEnd of NickServ LIST$b ***")))
- }
-
- func nsInfoHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- if !server.Config().Accounts.AuthenticationEnabled && !client.HasRoleCapabs("accreg") {
- nsNotice(rb, client.t("This command has been disabled by the server administrators"))
- return
- }
-
- var accountName string
- if len(params) > 0 {
- nick := params[0]
- if server.Config().Accounts.NickReservation.Enabled {
- accountName = server.accounts.NickToAccount(nick)
- if accountName == "" {
- nsNotice(rb, client.t("That nickname is not registered"))
- return
- }
- } else {
- accountName = nick
- }
- } else {
- accountName = client.Account()
- if accountName == "" {
- nsNotice(rb, client.t("You're not logged into an account"))
- return
- }
- }
-
- account, err := server.accounts.LoadAccount(accountName)
- if err != nil || !account.Verified {
- nsNotice(rb, client.t("Account does not exist"))
- return
- }
-
- nsNotice(rb, fmt.Sprintf(client.t("Account: %s"), account.Name))
- registeredAt := account.RegisteredAt.Format(time.RFC1123)
- nsNotice(rb, fmt.Sprintf(client.t("Registered at: %s"), registeredAt))
- // TODO nicer formatting for this
- for _, nick := range account.AdditionalNicks {
- nsNotice(rb, fmt.Sprintf(client.t("Additional grouped nick: %s"), nick))
- }
- for _, channel := range server.accounts.ChannelsForAccount(accountName) {
- nsNotice(rb, fmt.Sprintf(client.t("Registered channel: %s"), channel))
- }
- }
-
- func nsRegisterHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- details := client.Details()
- passphrase := params[0]
- var email string
- if 1 < len(params) {
- email = params[1]
- }
-
- certfp := rb.session.certfp
- if passphrase == "*" {
- if certfp == "" {
- nsNotice(rb, client.t("You must be connected with TLS and a client certificate to do this"))
- return
- } else {
- passphrase = ""
- }
- }
-
- if passphrase != "" {
- cfPassphrase, err := Casefold(passphrase)
- if err == nil && cfPassphrase == details.nickCasefolded {
- nsNotice(rb, client.t("Usage: REGISTER <passphrase> [email]")) // #1179
- return
- }
- }
-
- if !nsLoginThrottleCheck(client, rb) {
- return
- }
-
- config := server.Config()
- account := details.nick
- if config.Accounts.NickReservation.ForceGuestFormat {
- matches := config.Accounts.NickReservation.guestRegexp.FindStringSubmatch(account)
- if matches == nil || len(matches) < 2 {
- nsNotice(rb, client.t("Erroneous nickname"))
- return
- }
- account = matches[1]
- }
-
- var callbackNamespace, callbackValue string
- noneCallbackAllowed := false
- for _, callback := range config.Accounts.Registration.EnabledCallbacks {
- if callback == "*" {
- noneCallbackAllowed = true
- }
- }
- // XXX if ACC REGISTER allows registration with the `none` callback, then ignore
- // any callback that was passed here (to avoid confusion in the case where the ircd
- // has no mail server configured). otherwise, register using the provided callback:
- if noneCallbackAllowed {
- callbackNamespace = "*"
- } else {
- callbackNamespace, callbackValue = parseCallback(email, config.Accounts)
- if callbackNamespace == "" || callbackValue == "" {
- nsNotice(rb, client.t("Registration requires a valid e-mail address"))
- return
- }
- }
-
- err := server.accounts.Register(client, account, callbackNamespace, callbackValue, passphrase, rb.session.certfp)
- if err == nil {
- if callbackNamespace == "*" {
- err = server.accounts.Verify(client, account, "")
- if err == nil && fixupNickEqualsAccount(client, rb, config) {
- sendSuccessfulRegResponse(client, rb, true)
- }
- } else {
- messageTemplate := client.t("Account created, pending verification; verification code has been sent to %s")
- message := fmt.Sprintf(messageTemplate, callbackValue)
- nsNotice(rb, message)
- }
- } else {
- // details could not be stored and relevant numerics have been dispatched, abort
- message, _ := registrationErrorToMessageAndCode(err)
- nsNotice(rb, client.t(message))
- }
- }
-
- func nsSaregisterHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- var account, passphrase string
- account = params[0]
- if 1 < len(params) && params[1] != "*" {
- passphrase = params[1]
- }
- err := server.accounts.SARegister(account, passphrase)
-
- if err != nil {
- var errMsg string
- if err == errAccountAlreadyRegistered || err == errAccountAlreadyVerified {
- errMsg = client.t("Account already exists")
- } else if err == errAccountBadPassphrase {
- errMsg = client.t("Passphrase contains forbidden characters or is otherwise invalid")
- } else {
- server.logger.Error("services", "unknown error from saregister", err.Error())
- errMsg = client.t("Could not register")
- }
- nsNotice(rb, errMsg)
- } else {
- nsNotice(rb, fmt.Sprintf(client.t("Successfully registered account %s"), account))
- server.snomasks.Send(sno.LocalAccounts, fmt.Sprintf(ircfmt.Unescape("Operator $c[grey][$r%s$c[grey]] registered account $c[grey][$r%s$c[grey]] with SAREGISTER"), client.Oper().Name, account))
- }
- }
-
- func nsUnregisterHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- erase := command == "erase"
-
- username := params[0]
- var verificationCode string
- if len(params) > 1 {
- verificationCode = params[1]
- }
-
- if username == "" {
- nsNotice(rb, client.t("You must specify an account"))
- return
- }
-
- var accountName string
- var registeredAt time.Time
- if erase {
- // account may not be in a loadable state, e.g., if it was unregistered
- accountName = username
- // make the confirmation code nondeterministic for ERASE
- registeredAt = server.ctime
- } else {
- account, err := server.accounts.LoadAccount(username)
- if err == errAccountDoesNotExist {
- nsNotice(rb, client.t("Invalid account name"))
- return
- } else if err != nil {
- nsNotice(rb, client.t("Internal error"))
- return
- }
- accountName = account.Name
- registeredAt = account.RegisteredAt
- }
-
- if !(accountName == client.AccountName() || client.HasRoleCapabs("accreg")) {
- nsNotice(rb, client.t("Insufficient oper privs"))
- return
- }
-
- expectedCode := utils.ConfirmationCode(accountName, registeredAt)
- if expectedCode != verificationCode {
- if erase {
- nsNotice(rb, ircfmt.Unescape(client.t("$bWarning: erasing this account will allow it to be re-registered; consider UNREGISTER instead.$b")))
- } else {
- nsNotice(rb, ircfmt.Unescape(client.t("$bWarning: unregistering this account will remove its stored privileges.$b")))
- }
- nsNotice(rb, fmt.Sprintf(client.t("To confirm, run this command: %s"), fmt.Sprintf("/NS %s %s %s", strings.ToUpper(command), accountName, expectedCode)))
- return
- }
-
- err := server.accounts.Unregister(accountName, erase)
- if err == errAccountDoesNotExist {
- nsNotice(rb, client.t(err.Error()))
- } else if err != nil {
- nsNotice(rb, client.t("Error while unregistering account"))
- } else {
- nsNotice(rb, fmt.Sprintf(client.t("Successfully unregistered account %s"), accountName))
- server.logger.Info("accounts", "client", client.Nick(), "unregistered account", accountName)
- client.server.snomasks.Send(sno.LocalAccounts, fmt.Sprintf(ircfmt.Unescape("Client $c[grey][$r%s$c[grey]] unregistered account $c[grey][$r%s$c[grey]]"), client.NickMaskString(), accountName))
- }
- }
-
- func nsVerifyHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- username, code := params[0], params[1]
- err := server.accounts.Verify(client, username, code)
-
- var errorMessage string
- if err != nil {
- switch err {
- case errAccountAlreadyLoggedIn, errAccountVerificationInvalidCode, errAccountAlreadyVerified:
- errorMessage = err.Error()
- default:
- errorMessage = errAccountVerificationFailed.Error()
- }
- }
-
- if errorMessage != "" {
- nsNotice(rb, client.t(errorMessage))
- return
- }
-
- if fixupNickEqualsAccount(client, rb, server.Config()) {
- sendSuccessfulRegResponse(client, rb, true)
- }
- }
-
- func nsPasswdHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- var target string
- var newPassword string
- var errorMessage string
-
- hasPrivs := client.HasRoleCapabs("accreg")
-
- switch len(params) {
- case 2:
- if !hasPrivs {
- errorMessage = `Insufficient privileges`
- } else {
- target, newPassword = params[0], params[1]
- if newPassword == "*" {
- newPassword = ""
- }
- }
- case 3:
- target = client.Account()
- if target == "" {
- errorMessage = `You're not logged into an account`
- } else if params[1] != params[2] {
- errorMessage = `Passwords do not match`
- } else {
- if !nsLoginThrottleCheck(client, rb) {
- return
- }
- accountData, err := server.accounts.LoadAccount(target)
- if err != nil {
- errorMessage = `You're not logged into an account`
- } else {
- hash := accountData.Credentials.PassphraseHash
- if hash != nil && passwd.CompareHashAndPassword(hash, []byte(params[0])) != nil {
- errorMessage = `Password incorrect`
- } else {
- newPassword = params[1]
- if newPassword == "*" {
- newPassword = ""
- }
- }
- }
- }
- default:
- errorMessage = `Invalid parameters`
- }
-
- if errorMessage != "" {
- nsNotice(rb, client.t(errorMessage))
- return
- }
-
- err := server.accounts.setPassword(target, newPassword, hasPrivs)
- switch err {
- case nil:
- nsNotice(rb, client.t("Password changed"))
- case errEmptyCredentials:
- nsNotice(rb, client.t("You can't delete your password unless you add a certificate fingerprint"))
- case errCredsExternallyManaged:
- nsNotice(rb, client.t("Your account credentials are managed externally and cannot be changed here"))
- case errCASFailed:
- nsNotice(rb, client.t("Try again later"))
- default:
- server.logger.Error("internal", "could not upgrade user password:", err.Error())
- nsNotice(rb, client.t("Password could not be changed due to server error"))
- }
- }
-
- func nsEnforceHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- newParams := []string{"enforce"}
- if len(params) == 0 {
- nsGetHandler(server, client, "get", newParams, rb)
- } else {
- newParams = append(newParams, params[0])
- nsSetHandler(server, client, "set", newParams, rb)
- }
- }
-
- func nsClientsHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- var verb string
-
- if command == "sessions" {
- // Legacy "SESSIONS" command is an alias for CLIENTS LIST.
- verb = "list"
- } else if len(params) > 0 {
- verb = strings.ToLower(params[0])
- params = params[1:]
- }
-
- switch verb {
- case "list":
- nsClientsListHandler(server, client, params, rb)
- case "logout":
- nsClientsLogoutHandler(server, client, params, rb)
- default:
- nsNotice(rb, client.t("Invalid parameters"))
- }
- }
-
- func nsClientsListHandler(server *Server, client *Client, params []string, rb *ResponseBuffer) {
- target := client
- hasPrivs := client.HasRoleCapabs("local_ban")
- if 0 < len(params) {
- target = server.clients.Get(params[0])
- if target == nil {
- nsNotice(rb, client.t("No such nick"))
- return
- }
- if target != client && !hasPrivs {
- nsNotice(rb, client.t("Command restricted"))
- return
- }
- }
-
- sessionData, currentIndex := target.AllSessionData(rb.session, hasPrivs)
- nsNotice(rb, fmt.Sprintf(client.t("Nickname %[1]s has %[2]d attached clients(s)"), target.Nick(), len(sessionData)))
- for i, session := range sessionData {
- if currentIndex == i {
- nsNotice(rb, fmt.Sprintf(client.t("Client %d (currently attached client):"), session.sessionID))
- } else {
- nsNotice(rb, fmt.Sprintf(client.t("Client %d:"), session.sessionID))
- }
- if session.deviceID != "" {
- nsNotice(rb, fmt.Sprintf(client.t("Device ID: %s"), session.deviceID))
- }
- nsNotice(rb, fmt.Sprintf(client.t("IP address: %s"), session.ip.String()))
- nsNotice(rb, fmt.Sprintf(client.t("Hostname: %s"), session.hostname))
- if hasPrivs {
- nsNotice(rb, fmt.Sprintf(client.t("Connection: %s"), session.connInfo))
- }
- nsNotice(rb, fmt.Sprintf(client.t("Created at: %s"), session.ctime.Format(time.RFC1123)))
- nsNotice(rb, fmt.Sprintf(client.t("Last active: %s"), session.atime.Format(time.RFC1123)))
- if session.certfp != "" {
- nsNotice(rb, fmt.Sprintf(client.t("Certfp: %s"), session.certfp))
- }
- }
- }
-
- func nsClientsLogoutHandler(server *Server, client *Client, params []string, rb *ResponseBuffer) {
- if len(params) < 1 {
- nsNotice(rb, client.t("Missing client ID to logout (or \"all\")"))
- return
- }
-
- target := client
- if len(params) >= 2 {
- // CLIENTS LOGOUT [nickname] [client ID]
- target = server.clients.Get(params[0])
- if target == nil {
- nsNotice(rb, client.t("No such nick"))
- return
- }
- // User must have "local_kill" privileges to logout other user sessions.
- if target != client {
- oper := client.Oper()
- if oper == nil || !oper.Class.Capabilities.Has("local_kill") {
- nsNotice(rb, client.t("Insufficient oper privs"))
- return
- }
- }
- params = params[1:]
- }
-
- var sessionToDestroy *Session // target.destroy(nil) will logout all sessions
- if strings.ToLower(params[0]) != "all" {
- sessionID, err := strconv.ParseInt(params[0], 10, 64)
- if err != nil {
- nsNotice(rb, client.t("Client ID to logout should be an integer (or \"all\")"))
- return
- }
- // Find the client ID that the user requested to logout.
- sessions := target.Sessions()
- for _, session := range sessions {
- if session.sessionID == sessionID {
- sessionToDestroy = session
- }
- }
- if sessionToDestroy == nil {
- nsNotice(rb, client.t("Specified client ID does not exist"))
- return
- }
- }
-
- target.destroy(sessionToDestroy)
- if (sessionToDestroy != nil && rb.session != sessionToDestroy) || client != target {
- if sessionToDestroy != nil {
- nsNotice(rb, client.t("Successfully logged out session"))
- } else {
- nsNotice(rb, client.t("Successfully logged out all sessions"))
- }
- }
- }
-
- func nsCertHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- verb := strings.ToLower(params[0])
- params = params[1:]
- var target, certfp string
-
- switch verb {
- case "list":
- if 1 <= len(params) {
- target = params[0]
- }
- case "add", "del":
- if 2 <= len(params) {
- target, certfp = params[0], params[1]
- } else if len(params) == 1 {
- certfp = params[0]
- } else if len(params) == 0 && verb == "add" && rb.session.certfp != "" {
- certfp = rb.session.certfp // #1059
- } else {
- nsNotice(rb, client.t("Invalid parameters"))
- return
- }
- default:
- nsNotice(rb, client.t("Invalid parameters"))
- return
- }
-
- hasPrivs := client.HasRoleCapabs("accreg")
- if target != "" && !hasPrivs {
- nsNotice(rb, client.t("Insufficient privileges"))
- return
- } else if target == "" {
- target = client.Account()
- if target == "" {
- nsNotice(rb, client.t("You're not logged into an account"))
- return
- }
- }
-
- var err error
- switch verb {
- case "list":
- accountData, err := server.accounts.LoadAccount(target)
- if err == errAccountDoesNotExist {
- nsNotice(rb, client.t("Account does not exist"))
- return
- } else if err != nil {
- nsNotice(rb, client.t("An error occurred"))
- return
- }
- certfps := accountData.Credentials.Certfps
- nsNotice(rb, fmt.Sprintf(client.t("There are %[1]d certificate fingerprint(s) authorized for account %[2]s."), len(certfps), accountData.Name))
- for i, certfp := range certfps {
- nsNotice(rb, fmt.Sprintf("%d: %s", i+1, certfp))
- }
- return
- case "add":
- err = server.accounts.addRemoveCertfp(target, certfp, true, hasPrivs)
- case "del":
- err = server.accounts.addRemoveCertfp(target, certfp, false, hasPrivs)
- }
-
- switch err {
- case nil:
- if verb == "add" {
- nsNotice(rb, client.t("Certificate fingerprint successfully added"))
- } else {
- nsNotice(rb, client.t("Certificate fingerprint successfully removed"))
- }
- case errNoop:
- if verb == "add" {
- nsNotice(rb, client.t("That certificate fingerprint was already authorized"))
- } else {
- nsNotice(rb, client.t("Certificate fingerprint not found"))
- }
- case errAccountDoesNotExist:
- nsNotice(rb, client.t("Account does not exist"))
- case errLimitExceeded:
- nsNotice(rb, client.t("You already have too many certificate fingerprints"))
- case utils.ErrInvalidCertfp:
- nsNotice(rb, client.t("Invalid certificate fingerprint"))
- case errCertfpAlreadyExists:
- nsNotice(rb, client.t("That certificate fingerprint is already associated with another account"))
- case errEmptyCredentials:
- nsNotice(rb, client.t("You can't remove all your certificate fingerprints unless you add a password"))
- case errCredsExternallyManaged:
- nsNotice(rb, client.t("Your account credentials are managed externally and cannot be changed here"))
- case errCASFailed:
- nsNotice(rb, client.t("Try again later"))
- default:
- server.logger.Error("internal", "could not modify certificates:", err.Error())
- nsNotice(rb, client.t("An error occurred"))
- }
- }
-
- func nsSuspendHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- err := server.accounts.Suspend(params[0])
- switch err {
- case nil:
- nsNotice(rb, fmt.Sprintf(client.t("Successfully suspended account %s"), params[0]))
- case errAccountDoesNotExist:
- nsNotice(rb, client.t("No such account"))
- default:
- nsNotice(rb, client.t("An error occurred"))
- }
- }
-
- func nsUnsuspendHandler(server *Server, client *Client, command string, params []string, rb *ResponseBuffer) {
- err := server.accounts.Unsuspend(params[0])
- switch err {
- case nil:
- nsNotice(rb, fmt.Sprintf(client.t("Successfully un-suspended account %s"), params[0]))
- case errAccountDoesNotExist:
- nsNotice(rb, client.t("No such account"))
- default:
- nsNotice(rb, client.t("An error occurred"))
- }
- }
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