If this value is too low, servers may reject your initial nick
request upon reconnecting because they haven't yet noticed that
your previous connection is dead. If this happens, try setting
-this value to 120 or greater."
+this value to 120 or greater and/or exploring the option
+`erc-nickname-in-use-functions', which may provide a more
+proactive means of handling this situation on some servers."
:type 'number)
(defcustom erc-server-reconnect-function 'erc-server-delayed-reconnect
:group 'erc-hooks
:type 'hook)
+(defcustom erc-nickname-in-use-functions nil
+ "Function to run before trying for a different nickname.
+Called with two arguments: the desired but just rejected nickname
+and the alternate nickname about to be requested. Use cases
+include special handling during connection registration and
+wrestling with nickname services. For example, value
+`erc-regain-nick-on-connect' is aimed at dealing with reaping
+lingering connections that may prevent you from being issued a
+requested nick immediately when reconnecting. It's meant to be
+used with an `erc-server-reconnect-function' value of
+`erc-server-delayed-check-reconnect' alongside SASL
+authentication."
+ :package-version '(ERC . "5.6")
+ :group 'erc-hooks
+ :type '(choice (function-item erc-regain-nick-on-connect)
+ function
+ (const nil)))
+
(defcustom erc-connect-pre-hook '(erc-initialize-log-marker)
"Hook called just before `erc' calls `erc-connect'.
Functions are passed a buffer as the first argument."
(match-string 1 reason))
reason))
+(defun erc-regain-nick-on-connect (want temp)
+ "Try at most once to grab nickname WANT after settling for TEMP.
+Only do so during connection registration, likely prior to
+authenticating with SASL. Assume the prior connection was lost
+due to connectivity failure and that the server hasn't yet
+noticed. Also assume that the server won't process any
+authentication-related messages until it has accepted a mulligan
+nick or at least sent a 433 and thus triggered
+`erc-nickname-in-use-functions'. Expect authentication to have
+succeeded by the time a logical IRC connection has been
+established and that the contending connection may otherwise
+still be alive and require manual intervention involving
+NickServ."
+ (unless erc-server-connected
+ (letrec ((after-connect
+ (lambda (_ nick)
+ (remove-hook 'erc-after-connect after-connect t)
+ (when (equal temp nick)
+ (erc-cmd-NICK want))))
+ (on-900
+ (lambda (_ parsed)
+ (remove-hook 'erc-server-900-functions on-900 t)
+ (unless erc-server-connected
+ (when (equal (car (erc-response.command-args parsed)) temp)
+ (add-hook 'erc-after-connect after-connect nil t)))
+ nil)))
+ (add-hook 'erc-server-900-functions on-900 nil t))))
+
(defun erc-nickname-in-use (nick reason)
"If NICK is unavailable, tell the user the REASON.
;; established a connection yet
(- 9 (length erc-nick-uniquifier))))
erc-nick-uniquifier)))
+ (run-hook-with-args 'erc-nickname-in-use-functions nick newnick)
(erc-cmd-NICK newnick)
(erc-display-error-notice
nil
(should-not (search-forward "now known as frenemy" nil t))
(erc-d-t-search-for 25 "I have lost"))))
+;; The server rejects your nick during registration, so ERC acquires a
+;; placeholder and successfully renicks once the connection is up.
+;; See also `erc-scenarios-base-renick-self-auto'.
+
+(ert-deftest erc-scenarios-base-renick-auto-regain ()
+ :tags '(:expensive-test)
+ (erc-scenarios-common-with-cleanup
+ ((erc-server-flood-penalty 0.1)
+ (erc-scenarios-common-dialog "base/renick/regain")
+ (dumb-server (erc-d-run "localhost" t 'normal 'normal-again))
+ (port (process-contact dumb-server :service))
+ (erc-server-auto-reconnect t)
+ (erc-modules (cons 'sasl erc-modules))
+ (erc-nickname-in-use-functions '(erc-regain-nick-on-connect))
+ (expect (erc-d-t-make-expecter)))
+
+ (ert-info ("Session succeeds but cut short")
+ (with-current-buffer (erc :server "127.0.0.1"
+ :port port
+ :nick "tester"
+ :user "tester"
+ :password "changeme"
+ :full-name "tester")
+ (funcall expect 10 "Last login from")
+ (erc-cmd-JOIN "#test")))
+
+ (with-current-buffer (erc-d-t-wait-for 10 (get-buffer "#test"))
+ (funcall expect 10 "was created on"))
+
+ (ert-info ("Service restored")
+ (with-current-buffer "Libera.Chat"
+ (erc-d-t-wait-for 10 erc--server-reconnect-timer)
+ (funcall expect 10 "Connection failed!")
+ (funcall expect 10 "already in use")
+ (funcall expect 10 "changed mode for tester`")
+ (funcall expect 10 "Last login from")
+ (funcall expect 10 "Your new nickname is tester")))
+
+ (with-current-buffer (get-buffer "#test")
+ (funcall expect 10 "tester ")
+ (funcall expect 10 "was created on"))))
+
+
;;; erc-scenarios-base-renick.el ends here
--- /dev/null
+;; -*- mode: lisp-data; -*-
+((cap 10 "CAP REQ :sasl"))
+((nick 10 "NICK tester"))
+((user 10 "USER tester 0 * :tester"))
+
+((authenticate 10 "AUTHENTICATE PLAIN")
+ (0.04 ":tantalum.libera.chat NOTICE * :*** Checking Ident")
+ (0.01 ":tantalum.libera.chat NOTICE * :*** Looking up your hostname...")
+ (0.01 ":tantalum.libera.chat NOTICE * :*** Couldn't look up your hostname")
+ (0.06 ":tantalum.libera.chat NOTICE * :*** No Ident response")
+ (0.02 ":tantalum.libera.chat CAP * ACK :sasl")
+ (0.03 ":tantalum.libera.chat 433 * tester :Nickname is already in use."))
+
+((nick 10 "NICK tester`")
+ (0.03 "AUTHENTICATE +"))
+
+((authenticate 10 "AUTHENTICATE AHRlc3RlcgBjaGFuZ2VtZQ==")
+ (0.06 ":tantalum.libera.chat 900 tester` tester`!tester@127.0.0.1 tester :You are now logged in as tester")
+ (0.02 ":tantalum.libera.chat 903 tester` :SASL authentication successful"))
+
+((cap 10 "CAP END")
+ (0.02 ":tantalum.libera.chat 001 tester` :Welcome to the Libera.Chat Internet Relay Chat Network tester`")
+ (0.02 ":tantalum.libera.chat 002 tester` :Your host is tantalum.libera.chat[93.158.237.2/6697], running version solanum-1.0-dev")
+ (0.02 ":tantalum.libera.chat 003 tester` :This server was created Mon Feb 13 2023 at 12:05:04 UTC")
+ (0.01 ":tantalum.libera.chat 004 tester` tantalum.libera.chat solanum-1.0-dev DGMQRSZaghilopsuwz CFILMPQRSTbcefgijklmnopqrstuvz bkloveqjfI")
+ (0.01 ":tantalum.libera.chat 005 tester` WHOX MONITOR=100 SAFELIST ELIST=CMNTU ETRACE FNC CALLERID=g KNOCK CHANTYPES=# EXCEPTS INVEX CHANMODES=eIbq,k,flj,CFLMPQRSTcgimnprstuz :are supported by this server")
+ (0.01 ":tantalum.libera.chat 005 tester` CHANLIMIT=#:250 PREFIX=(ov)@+ MAXLIST=bqeI:100 MODES=4 NETWORK=Libera.Chat STATUSMSG=@+ CASEMAPPING=rfc1459 NICKLEN=16 MAXNICKLEN=16 CHANNELLEN=50 TOPICLEN=390 DEAF=D :are supported by this server")
+ (0.03 ":tantalum.libera.chat 005 tester` TARGMAX=NAMES:1,LIST:1,KICK:1,WHOIS:1,PRIVMSG:4,NOTICE:4,ACCEPT:,MONITOR: EXTBAN=$,ajrxz :are supported by this server")
+ (0.01 ":tantalum.libera.chat 251 tester` :There are 70 users and 42977 invisible on 28 servers")
+ (0.00 ":tantalum.libera.chat 252 tester` 38 :IRC Operators online")
+ (0.00 ":tantalum.libera.chat 253 tester` 87 :unknown connection(s)")
+ (0.00 ":tantalum.libera.chat 254 tester` 22908 :channels formed")
+ (0.00 ":tantalum.libera.chat 255 tester` :I have 2507 clients and 1 servers")
+ (0.00 ":tantalum.libera.chat 265 tester` 2507 3232 :Current local users 2507, max 3232")
+ (0.00 ":tantalum.libera.chat 266 tester` 43047 51777 :Current global users 43047, max 51777")
+ (0.00 ":tantalum.libera.chat 250 tester` :Highest connection count: 3233 (3232 clients) (284887 connections received)")
+ (0.03 ":tantalum.libera.chat 375 tester` :- tantalum.libera.chat Message of the Day - ")
+ (0.00 ":tantalum.libera.chat 372 tester` :- This server provided by Hyperfilter (https://hyperfilter.com)")
+ (0.00 ":tantalum.libera.chat 372 tester` :- Email: support@libera.chat")
+ (0.02 ":tantalum.libera.chat 376 tester` :End of /MOTD command."))
+
+((mode 10 "MODE tester` +i")
+ (0.01 ":tester` MODE tester` :+Ziw")
+ (0.02 ":SaslServ!SaslServ@services.libera.chat NOTICE tester` :Last login from: \2~tester@127.0.0.1\2 on Apr 07 01:36:25 2023 +0000."))
+
+((nick 10 "NICK tester")
+ (0.02 ":tester`!~tester@127.0.0.1 NICK :tester"))
+
+((join 10 "JOIN #test")
+ (0.02 ":tester!~tester@127.0.0.1 JOIN #test")
+ (0.02 ":tantalum.libera.chat 353 tester = #test :tester zbyqbepbqre7 pusevgfpu Thrfg2187 zngbeb qnexNssvavgl wrebzr- rqpentt Ilehf grfg2 AvtugZbaxrl pevfgvvbna xrivap_ fnvybePng shohxv gxan arrqyr avpx16 NeanhqW_kzcc jvyyr wrnaogeq Wnarg cnefavc0 Xbentt RcvpArb flfqrs wfgbxre hafcrag__ Lbevpx_")
+ (0.02 ":tantalum.libera.chat 366 tester #test :End of /NAMES list."))
+
+((mode 10 "MODE #test")
+ (0.02 ":tantalum.libera.chat 324 tester #test +nt")
+ (0.02 ":tantalum.libera.chat 329 tester #test 1621432263"))
--- /dev/null
+;; -*- mode: lisp-data; -*-
+((cap 10 "CAP REQ :sasl"))
+((nick 10 "NICK tester"))
+((user 10 "USER tester 0 * :tester"))
+
+((authenticate 10 "AUTHENTICATE PLAIN")
+ (0.02 ":cadmium.libera.chat NOTICE * :*** Checking Ident")
+ (0.01 ":cadmium.libera.chat NOTICE * :*** Looking up your hostname...")
+ (0.01 ":cadmium.libera.chat NOTICE * :*** Couldn't look up your hostname")
+ (0.06 ":cadmium.libera.chat NOTICE * :*** No Ident response")
+ (0.09 ":cadmium.libera.chat CAP * ACK :sasl")
+ (0.01 "AUTHENTICATE +"))
+
+((authenticate 10 "AUTHENTICATE AHRlc3RlcgBjaGFuZ2VtZQ==")
+ (0.03 ":cadmium.libera.chat 900 tester tester!tester@127.0.0.1 tester :You are now logged in as tester")
+ (0.01 ":cadmium.libera.chat 903 tester :SASL authentication successful"))
+
+((cap 10 "CAP END")
+ (0.03 ":cadmium.libera.chat 001 tester :Welcome to the Libera.Chat Internet Relay Chat Network tester")
+ (0.02 ":cadmium.libera.chat 002 tester :Your host is cadmium.libera.chat[103.196.37.95/6697], running version solanum-1.0-dev")
+ (0.01 ":cadmium.libera.chat 003 tester :This server was created Wed Jan 25 2023 at 10:22:45 UTC")
+ (0.01 ":cadmium.libera.chat 004 tester cadmium.libera.chat solanum-1.0-dev DGMQRSZaghilopsuwz CFILMPQRSTbcefgijklmnopqrstuvz bkloveqjfI")
+ (0.00 ":cadmium.libera.chat 005 tester CALLERID=g WHOX ETRACE FNC SAFELIST ELIST=CMNTU KNOCK MONITOR=100 CHANTYPES=# EXCEPTS INVEX CHANMODES=eIbq,k,flj,CFLMPQRSTcgimnprstuz :are supported by this server")
+ (0.01 ":cadmium.libera.chat 005 tester CHANLIMIT=#:250 PREFIX=(ov)@+ MAXLIST=bqeI:100 MODES=4 NETWORK=Libera.Chat STATUSMSG=@+ CASEMAPPING=rfc1459 NICKLEN=16 MAXNICKLEN=16 CHANNELLEN=50 TOPICLEN=390 DEAF=D :are supported by this server")
+ (0.01 ":cadmium.libera.chat 005 tester TARGMAX=NAMES:1,LIST:1,KICK:1,WHOIS:1,PRIVMSG:4,NOTICE:4,ACCEPT:,MONITOR: EXTBAN=$,ajrxz :are supported by this server")
+ (0.01 ":cadmium.libera.chat 251 tester :There are 70 users and 42996 invisible on 28 servers")
+ (0.02 ":cadmium.libera.chat 252 tester 38 :IRC Operators online")
+ (0.01 ":cadmium.libera.chat 253 tester 57 :unknown connection(s)")
+ (0.01 ":cadmium.libera.chat 254 tester 22912 :channels formed")
+ (0.01 ":cadmium.libera.chat 255 tester :I have 2499 clients and 1 servers")
+ (0.01 ":cadmium.libera.chat 265 tester 2499 4187 :Current local users 2499, max 4187")
+ (0.01 ":cadmium.libera.chat 266 tester 43066 51827 :Current global users 43066, max 51827")
+ (0.01 ":cadmium.libera.chat 250 tester :Highest connection count: 4188 (4187 clients) (319420 connections received)")
+ (0.01 ":cadmium.libera.chat 375 tester :- cadmium.libera.chat Message of the Day - ")
+ (0.01 ":cadmium.libera.chat 372 tester :- This server kindly provided by Mach Dilemma (www.m-d.net)")
+ (0.01 ":cadmium.libera.chat 372 tester :- Welcome to Libera Chat, the IRC network for")
+ (0.00 ":cadmium.libera.chat 372 tester :- Email: support@libera.chat")
+ (0.00 ":cadmium.libera.chat 376 tester :End of /MOTD command.")
+ (0.00 ":tester MODE tester :+Ziw")
+ (0.02 ":SaslServ!SaslServ@services.libera.chat NOTICE tester :Last login from: \2~tester@127.0.0.1\2 on Apr 07 01:02:11 2023 +0000."))
+
+((mode 10 "MODE tester +i"))
+
+((join 10 "JOIN #test")
+ (0.09 ":tester!~tester@127.0.0.1 JOIN #test"))
+
+((mode 10 "MODE #test")
+ (0.03 ":cadmium.libera.chat 353 tester = #test :tester zbyqbepbqre7 pusevgfpu Thrfg2187 zngbeb qnexNssvavgl wrebzr- rqpentt Ilehf grfg2 AvtugZbaxrl pevfgvvbna xrivap_ fnvybePng shohxv gxan arrqyr avpx16 NeanhqW_kzcc Lbevpx_ hafcrag__ wfgbxre flfqrs RcvpArb Xbentt jvyyr cnefavc0 Wnarg wrnaogeq")
+ (0.02 ":cadmium.libera.chat 366 tester #test :End of /NAMES list.")
+ (0.00 ":cadmium.libera.chat 324 tester #test +nt")
+ (0.01 ":cadmium.libera.chat 329 tester #test 1621432263"))
+
+((drop 0 DROP))
projects / emacs.git / commitdiff