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338 lines
11 KiB
EmacsLisp
338 lines
11 KiB
EmacsLisp
;;; erc-nickserv.el --- Identify to NickServ
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;; Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;; There are two ways to go about identifying yourself automatically to
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;; NickServ with this module. The more secure way is to listen for identify
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;; requests from the user NickServ. Another way is to identify yourself to
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;; NickServ directly after a successful connection and every time you change
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;; your nickname. This method is rather insecure, though, because no checks
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;; are made to test if NickServ is the real NickServ for a given network or
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;; server.
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;; As a default, ERC has the data for the official nickname services on the
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;; networks Austnet, BrasNET, Dalnet, freenode, GalaxyNet, and Slashnet.
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;; You can add more by using M-x customize-variable RET erc-nickserv-alist.
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;; Usage:
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;;
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;; Put into your .emacs:
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;;
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;; (require 'erc-nickserv)
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;; (erc-services-mode 1)
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;;
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;; Add your nickname and NickServ password to `erc-nickserv-passwords'.
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;; Using the freenode network as an example:
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;;
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;; (setq erc-nickserv-passwords '((freenode (("nickname" "password")))))
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;;
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;; The default automatic identification mode is autodetection of NickServ
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;; identify requests. Set the variable `erc-nickserv-identify-mode' if
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;; you'd like to change this behavior. You can also change the way
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;; automatic identification is handled by using:
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;;
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;; M-x erc-nickserv-identify-mode
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;;
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;; If you'd rather not identify yourself automatically but would like access
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;; to the functions contained in this file, just load this file without
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;; enabling `erc-services-mode'.
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;;
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;;; Code:
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(require 'erc)
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(require 'erc-nets)
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(eval-when-compile (require 'cl))
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;; Customization:
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(defgroup erc-services nil
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"Configuration for IRC services.
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On some networks, there exists a special type of automated irc bot,
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called Services. Those usually allow you to register your nickname,
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post/read memos to other registered users who are currently offline,
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and do various other things.
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This group allows you to set variables to somewhat automate
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communication with those Services."
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:group 'erc)
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;;;###autoload (autoload 'erc-services-mode "erc-nickserv" nil t)
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(define-erc-module services nickserv
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"This mode automates communication with services."
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((erc-nickserv-identify-mode erc-nickserv-identify-mode))
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((remove-hook 'erc-server-NOTICE-functions
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'erc-nickserv-identify-autodetect)
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(remove-hook 'erc-after-connect
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'erc-nickserv-identify-on-connect)
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(remove-hook 'erc-nick-changed-functions
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'erc-nickserv-identify-on-nick-change)))
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;;;###autoload
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(defun erc-nickserv-identify-mode (mode)
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"Set up hooks according to which MODE the user has chosen."
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(interactive
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(list (intern (completing-read
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"Choose Nickserv identify mode (RET to disable): "
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'(("autodetect") ("nick-change")) nil t))))
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(cond ((eq mode 'autodetect)
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(setq erc-nickserv-identify-mode 'autodetect)
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(add-hook 'erc-server-NOTICE-functions
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'erc-nickserv-identify-autodetect)
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(remove-hook 'erc-nick-changed-functions
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'erc-nickserv-identify-on-nick-change)
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(remove-hook 'erc-after-connect
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'erc-nickserv-identify-on-connect))
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((eq mode 'nick-change)
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(setq erc-nickserv-identify-mode 'nick-change)
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(add-hook 'erc-after-connect
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'erc-nickserv-identify-on-connect)
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(add-hook 'erc-nick-changed-functions
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'erc-nickserv-identify-on-nick-change)
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(remove-hook 'erc-server-NOTICE-functions
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'erc-nickserv-identify-autodetect))
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(t
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(setq erc-nickserv-identify-mode nil)
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(remove-hook 'erc-server-NOTICE-functions
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'erc-nickserv-identify-autodetect)
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(remove-hook 'erc-after-connect
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'erc-nickserv-identify-on-connect)
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(remove-hook 'erc-nick-changed-functions
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'erc-nickserv-identify-on-nick-change))))
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(defcustom erc-nickserv-identify-mode 'autodetect
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"The mode which is used when identifying to Nickserv.
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Possible settings are:.
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'autodetect - Identify when the real Nickserv sends an identify request.
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'nick-change - Identify when you change your nickname.
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nil - Disables automatic Nickserv identification.
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You can also use M-x erc-nickserv-identify-mode to change modes."
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:group 'erc-services
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:type '(choice (const autodetect)
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(const nick-change)
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(const nil))
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:set (lambda (sym val)
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(set-default sym val)
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(erc-nickserv-identify-mode val)))
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(defcustom erc-prompt-for-nickserv-password t
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"Ask for the password when identifying to NickServ."
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:group 'erc-services
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:type 'boolean)
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(defcustom erc-nickserv-passwords nil
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"Passwords used when identifying to NickServ automatically.
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Example of use:
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(setq erc-nickserv-passwords
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'((freenode ((\"nick-one\" . \"password\")
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(\"nick-two\" . \"password\")))
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(DALnet ((\"nick\" . \"password\")))))"
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:group 'erc-services
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:type '(repeat
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(list :tag "Network"
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(choice :tag "Network name"
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(const freenode)
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(const DALnet)
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(const GalaxyNet)
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(const SlashNET)
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(const BRASnet)
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(const iip)
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(const Austnet)
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(symbol :tag "Network name"))
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(repeat :tag "Nickname and password"
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(cons :tag "Identity"
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(string :tag "Nick")
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(string :tag "Password"))))))
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;; Variables:
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(defcustom erc-nickserv-alist
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'((DALnet
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"NickServ!service@dal.net"
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"/msg\\s-NickServ@services.dal.net\\s-IDENTIFY\\s-<password>"
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"NickServ@services.dal.net"
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"IDENTIFY"
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nil)
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(freenode
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"NickServ!NickServ@services."
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"/msg\\s-NickServ\\s-IDENTIFY\\s-<password>"
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"NickServ"
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"IDENTIFY"
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nil)
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(GalaxyNet
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"NS!nickserv@galaxynet.org"
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"Please\\s-change\\s-nicks\\s-or\\s-authenticate."
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"NS@services.galaxynet.org"
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"AUTH"
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t)
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(SlashNET
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"NickServ!services@services.slashnet.org"
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"/msg\\s-NickServ\\s-IDENTIFY\\s- password"
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"NickServ@services.slashnet.org"
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"IDENTIFY"
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nil)
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(iip
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"Trent@anon.iip"
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"type\\s-/squery\\s-Trent\\s-identify\\s-<password>"
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"Trent@anon.iip"
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"IDENTIFY"
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nil
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"SQUERY")
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(BRASnet
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"NickServ!services@brasnet.org"
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"/NickServ\\s-IDENTIFY\\s- senha "
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"NickServ"
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"IDENTIFY"
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nil
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"")
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(Austnet
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"NickOP!service@austnet.org"
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"/msg\\s-NickOP@austnet.org\\s-identify\\s-<password>"
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"nickop@austnet.org"
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"identify"
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nil)
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(Azzurra
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"NickServ!service@azzurra.org"
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"/ns\\s-IDENTIFY\\s-password"
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"NickServ"
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"IDENTIFY"
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nil)
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(OFTC
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"NickServ!services@services.oftc.net"
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"/msg\\s-NickServ\\s-IDENTIFY\\s-\^_password"
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"NickServ"
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"IDENTIFY"
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nil))
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"Alist of NickServer details, sorted by network.
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Every element in the list has the form
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\(SYMBOL NICKSERV REGEXP NICK KEYWORD USE-CURRENT ANSWER)
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SYMBOL is a network identifier, a symbol, as used in `erc-networks-alist'.
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NICKSERV is the description of the nickserv in the form nick!user@host.
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REGEXP is a regular expression matching the message from nickserv.
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NICK is nickserv's nickname. Use nick@server where necessary/possible.
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KEYWORD is the keyword to use in the reply message to identify yourself.
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USE-CURRENT indicates whether the current nickname must be used when
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identifying.
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ANSWER is the command to use for the answer. The default is 'privmsg.
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This last element is optional."
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:group 'erc-services
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:type '(repeat
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(list :tag "Nickserv data"
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(symbol :tag "Network name")
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(string :tag "Nickserv's nick!user@host")
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(regexp :tag "Identify request sent by Nickserv")
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(string :tag "Identify to")
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(string :tag "Identify keyword")
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(boolean :tag "Use current nick in identify message?")
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(choice :tag "Command to use (optional)"
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(string :tag "Command")
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(const :tag "No special command necessary" nil)))))
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;; Functions:
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(defun erc-nickserv-identify-autodetect (proc parsed)
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"Check for a NickServ identify request everytime a notice is received.
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Make sure it is the real NickServ for this network and that it has
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specifically asked the user to IDENTIFY.
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If `erc-prompt-for-nickserv-password' is non-nil, prompt the user for the
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password for this nickname, otherwise try to send it automatically."
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(unless (and (null erc-nickserv-passwords)
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(null erc-prompt-for-nickserv-password))
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(let* ((network (erc-network))
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(nickserv (nth 1 (assoc network erc-nickserv-alist)))
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(identify-regex (nth 2 (assoc network erc-nickserv-alist)))
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(sspec (erc-response.sender parsed))
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(nick (car (erc-response.command-args parsed)))
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(msg (erc-response.contents parsed)))
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;; continue only if we're sure it's the real nickserv for this network
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;; and it's asked us to identify
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(when (and nickserv (equal sspec nickserv)
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(string-match identify-regex msg))
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(erc-log "NickServ IDENTIFY request detected")
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(erc-nickserv-call-identify-function nick)
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nil))))
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(defun erc-nickserv-identify-on-connect (server nick)
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"Identify to Nickserv after the connection to the server is established."
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(unless (and (null erc-nickserv-passwords)
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(null erc-prompt-for-nickserv-password))
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(erc-nickserv-call-identify-function nick)))
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(defun erc-nickserv-identify-on-nick-change (nick old-nick)
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"Identify to Nickserv whenever your nick changes."
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(unless (and (null erc-nickserv-passwords)
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(null erc-prompt-for-nickserv-password))
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(erc-nickserv-call-identify-function nick)))
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(defun erc-nickserv-call-identify-function (nickname)
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"Call `erc-nickserv-identify' interactively or run it with NICKNAME's
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password.
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The action is determined by the value of `erc-prompt-for-nickserv-password'."
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(if erc-prompt-for-nickserv-password
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(call-interactively 'erc-nickserv-identify)
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(when erc-nickserv-passwords
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(erc-nickserv-identify
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(cdr (assoc nickname
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(nth 1 (assoc (erc-network)
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erc-nickserv-passwords))))))))
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;;;###autoload
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(defun erc-nickserv-identify (password)
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"Send an \"identify <PASSWORD>\" message to NickServ.
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When called interactively, read the password using `read-passwd'."
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(interactive
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(list (read-passwd
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(format "NickServ password for %s on %s (RET to cancel): "
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(erc-current-nick)
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(or (and (erc-network)
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(symbol-name (erc-network)))
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"Unknown network")))))
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(when (and password (not (string= "" password)))
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(let* ((erc-auto-discard-away nil)
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(network (erc-network))
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(nickserv-info (assoc network erc-nickserv-alist))
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(nickserv (or (nth 3 nickserv-info) "NickServ"))
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(identify-word (or (nth 4 nickserv-info) "IDENTIFY"))
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(nick (if (nth 5 nickserv-info)
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(concat (erc-current-nick) " ")
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""))
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(msgtype (or (nth 6 nickserv-info) "PRIVMSG")))
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(erc-message msgtype
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(concat nickserv " " identify-word " " nick password)))))
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(provide 'erc-nickserv)
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;;; erc-nickserv.el ends here
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;;
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;; Local Variables:
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;; indent-tabs-mode: t
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;; tab-width: 8
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;; End:
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;; arch-tag: d401c8aa-d938-4255-96a9-3efb64c47e58
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