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182 lines
5.8 KiB
EmacsLisp
182 lines
5.8 KiB
EmacsLisp
;;; erc-ezbounce.el --- Handle EZBounce bouncer commands
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;; Copyright (C) 2002, 2004, 2006-2019 Free Software Foundation, Inc.
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;; Author: Andreas Fuchs <asf@void.at>
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;; Maintainer: emacs-devel@gnu.org
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;; Keywords: comm
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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 3 of the License, or
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;; (at your option) 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. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(require 'erc)
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(defgroup erc-ezbounce nil
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"Interface to the EZBounce IRC bouncer (a virtual IRC server)"
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:group 'erc)
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(defcustom erc-ezb-regexp "^ezbounce!srv$"
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"Regexp used by the EZBouncer to identify itself to the user."
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:group 'erc-ezbounce
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:type 'string)
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(defcustom erc-ezb-login-alist '()
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"Alist of logins suitable for the server we're connecting to.
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The alist's format is as follows:
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(((server . port) . (username . password))
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((server . port) . (username . password))
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...)"
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:group 'erc-ezbounce
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:type '(repeat
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(cons (cons :tag "Server"
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string
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string)
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(cons :tag "Login"
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string
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string))))
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(defvar erc-ezb-action-alist '(("^\\[awaiting login/pass command\\]$" . erc-ezb-identify)
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("^\\[use /quote CONN <server> to connect\\]$" . erc-ezb-select)
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("^ID +IRC NICK +TO +TIME$" . erc-ezb-init-session-list)
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("^$" . erc-ezb-end-of-session-list)
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(".*" . erc-ezb-add-session))
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"Alist of actions to take on NOTICEs from EZBounce.")
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(defvar erc-ezb-session-list '()
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"List of detached EZBounce sessions.")
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(make-variable-buffer-local 'erc-ezb-session-list)
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(defvar erc-ezb-inside-session-listing nil
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"Indicate whether current notices are expected to be EZB session listings.")
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;;;###autoload
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(defun erc-cmd-ezb (line &optional force)
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"Send EZB commands to the EZBouncer verbatim."
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(erc-server-send (concat "EZB " line)))
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(put 'erc-cmd-EZB 'do-not-parse-args t)
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;;;###autoload
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(defun erc-ezb-get-login (server port)
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"Return an appropriate EZBounce login for SERVER and PORT.
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Look up entries in `erc-ezb-login-alist'. If the username or password
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in the alist is nil, prompt for the appropriate values."
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(let ((login (cdr (assoc (cons server port) erc-ezb-login-alist))))
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(when login
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(let ((username (car login))
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(password (cdr login)))
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(when (null username)
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(setq username (read-from-minibuffer (format "EZBounce user name for %s:%s: " server port))))
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(when (null password)
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(setq password (read-passwd (format "EZBounce password for %s:%s: " server port))))
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(cons username password)))))
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;;;###autoload
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(defun erc-ezb-lookup-action (message)
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(let ((function-alist erc-ezb-action-alist)
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found)
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(while (and (not found)
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function-alist)
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(let ((regexp (caar function-alist))
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(function (cdar function-alist)))
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(when (string-match regexp message)
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(setq found function))
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(setq function-alist (cdr function-alist))))
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found))
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;;;###autoload
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(defun erc-ezb-notice-autodetect (proc parsed)
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"React on an EZBounce NOTICE request."
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(let* ((sender (erc-response.sender parsed))
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(message (erc-response.contents parsed))
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(function (erc-ezb-lookup-action message)))
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(when (and (string-match erc-ezb-regexp sender)
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function)
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(funcall function message)))
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nil)
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;;;###autoload
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(defun erc-ezb-identify (message)
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"Identify to the EZBouncer server."
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(let ((login (erc-ezb-get-login erc-session-server (erc-port-to-string erc-session-port))))
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(unless (null login)
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(let ((username (car login))
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(pass (cdr login)))
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(erc-server-send (concat "LOGIN " username " " pass))))))
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;;;###autoload
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(defun erc-ezb-init-session-list (message)
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"Reset the EZBounce session list to nil."
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(setq erc-ezb-session-list nil)
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(setq erc-ezb-inside-session-listing t))
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;;;###autoload
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(defun erc-ezb-end-of-session-list (message)
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"Indicate the end of the EZBounce session listing."
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(setq erc-ezb-inside-session-listing nil))
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;;;###autoload
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(defun erc-ezb-add-session (message)
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"Add an EZBounce session to the session list."
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(when (and erc-ezb-inside-session-listing
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(string-match "^\\([^ \n]+\\) +\\([^ \n]+\\) +\\([^ \n]+\\) +\\([^ \n]+\\)$" message))
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(let ((id (match-string 1 message))
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(nick (match-string 2 message))
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(to (match-string 3 message)))
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(add-to-list 'erc-ezb-session-list (list id nick to)))))
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;;;###autoload
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(defun erc-ezb-select (message)
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"Select an IRC server to use by EZBounce, in ERC style."
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(unless (and erc-ezb-session-list
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(erc-ezb-select-session))
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(let* ((server (read-from-minibuffer
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"IRC server: " "" nil nil 'erc-server-history-list))
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(port
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(erc-string-to-port
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(read-from-minibuffer "IRC port: "
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(erc-port-to-string "6667")))))
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(erc-server-send (format "CONN %s %s" server port)))))
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;;;###autoload
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(defun erc-ezb-select-session ()
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"Select a detached EZBounce session."
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(let ((session (completing-read "Existing Session (RET to enter a new one): "
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erc-ezb-session-list)))
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(if (string= session "")
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nil
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(erc-server-send (format "REATTACH %s" session)))))
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;;;###autoload
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(defun erc-ezb-initialize ()
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"Add EZBouncer convenience functions to ERC."
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(add-hook 'erc-server-NOTICE-functions 'erc-ezb-notice-autodetect))
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(provide 'erc-ezbounce)
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;;; erc-ezbounce.el ends here
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;; Local Variables:
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;; generated-autoload-file: "erc-loaddefs.el"
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;; End:
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