cgit.sxemacs.org Git - riece/blob - lisp/riece-server.el

   1 ;;; riece-server.el --- functions to open and close servers
   2 ;; Copyright (C) 1998-2003 Daiki Ueno
   3
   4 ;; Author: Daiki Ueno <ueno@unixuser.org>
   5 ;; Created: 1998-09-28
   6 ;; Keywords: IRC, riece
   7
   8 ;; This file is part of Riece.
   9
  10 ;; This program is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; This program is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Code:
  26
  27 (require 'riece-options)
  28 (require 'riece-globals)                ;for server local variables.
  29 (require 'riece-coding)                 ;riece-default-coding-system
  30 (require 'riece-identity)
  31 (require 'riece-compat)
  32
  33 (eval-and-compile
  34   (defvar riece-server-keyword-map
  35     '((:host)
  36       (:service 6667)
  37       (:nickname riece-nickname)
  38       (:username riece-username)
  39       (:password)
  40       (:function riece-default-open-connection-function)
  41       (:coding riece-default-coding-system)
  42       (:protocol))
  43     "Mapping from keywords to default values.
  44 All keywords that can be used must be listed here."))
  45
  46 (defmacro riece-server-keyword-bind (plist &rest body)
  47   "Return a `let' form that binds all variables in PLIST.
  48 After this is done, BODY will be executed in the scope
  49 of the `let' form.
  50
  51 The variables bound and their default values are described by
  52 the `riece-server-keyword-map' variable."
  53   `(let ,(mapcar
  54           (lambda (keyword)
  55             (list (intern (substring (symbol-name (car keyword)) 1))
  56                   (if (cadr keyword)
  57                       `(or (plist-get ,plist ',(car keyword))
  58                            ,(cadr keyword))
  59                     `(plist-get ,plist ',(car keyword)))))
  60           riece-server-keyword-map)
  61      ,@body))
  62
  63 (put 'riece-server-keyword-bind 'lisp-indent-function 1)
  64 (put 'riece-server-keyword-bind 'edebug-form-spec '(form body))
  65
  66 (defun riece-server-parse-string (string)
  67   "Convert a STRING set as `riece-server' and return a property list."
  68   (when (or (string-match "^\\[\\([^]]+\\)\\]:?\\([0-9]*\\)" string)
  69             (string-match "^\\([^:]+\\):?\\([0-9]*\\)" string))
  70     (let ((host (match-string 1 string))
  71           (service (match-string 2 string))
  72           (password (substring string (match-end 0)))
  73           plist)
  74       (setq plist (cons `(:host ,host) plist))
  75       (unless (equal service "")
  76         (setq plist (cons `(:service ,(string-to-int service)) plist)))
  77       (unless (equal password "")
  78         (setq plist (cons `(:password ,(substring password 1)) plist)))
  79       (apply #'nconc plist))))
  80
  81 (defun riece-server-name-to-server (server-name)
  82   (let ((entry (assoc server-name riece-server-alist)))
  83     (if entry
  84         (unless (listp (cdr entry))
  85           (setcdr entry (riece-server-parse-string (cdr entry))))
  86       (setq entry (cons server-name (riece-server-parse-string server-name))
  87             riece-server-alist (cons entry riece-server-alist)
  88             riece-save-variables-are-dirty t))
  89     (cdr entry)))
  90
  91 (defun riece-server-process-name (server-name)
  92   (if (equal server-name "")
  93       "IRC"
  94     (format "IRC<%s>" server-name)))
  95
  96 (defun riece-server-process (server-name)
  97   (cdr (assoc server-name riece-server-process-alist)))
  98
  99 (defmacro riece-with-server-buffer (server-name &rest body)
 100   `(let ((process (riece-server-process ,server-name)))
 101      (if process
 102          (with-current-buffer (process-buffer process)
 103            ,@body)
 104        (error "Server closed"))))
 105
 106 (put 'riece-with-server-buffer 'lisp-indent-function 1)
 107 (put 'riece-with-server-buffer 'edebug-form-spec '(form body))
 108
 109 (defun riece-process-send-string (process string)
 110   (with-current-buffer (process-buffer process)
 111     (process-send-string process (riece-encode-coding-string string))))
 112
 113 (defun riece-current-server-name ()
 114   (or riece-overriding-server-name
 115                                         ;already in the server buffer
 116       (if (local-variable-p 'riece-server-name (current-buffer))
 117           riece-server-name
 118         (if riece-current-channel
 119             (riece-identity-server riece-current-channel)
 120           (if (riece-server-opened "")
 121               "")))))
 122
 123 (defun riece-send-string (string)
 124   (let* ((server-name (riece-current-server-name))
 125          (process (riece-server-process server-name)))
 126     (unless process
 127       (error "%s" (substitute-command-keys
 128                    "Type \\[riece-command-open-server] to open server.")))
 129     (riece-process-send-string process string)))
 130
 131 (eval-when-compile
 132   (autoload 'riece-exit "riece"))
 133 (defun riece-open-server (server server-name)
 134   (riece-server-keyword-bind server
 135     (let (selective-display
 136           (coding-system-for-read 'binary)
 137           (coding-system-for-write 'binary)
 138           process)
 139       (if (equal server-name "")
 140           (message "Connecting to IRC server...")
 141         (message "Connecting to %s..." server-name))
 142       (setq process
 143             (funcall function (riece-server-process-name server-name)
 144                      (concat " *IRC*" server-name)
 145                      host service))
 146       (if (equal server-name "")
 147           (message "Connecting to IRC server...done")
 148         (message "Connecting to %s...done" server-name))
 149       (riece-reset-process-buffer process)
 150       (with-current-buffer (process-buffer process)
 151         (setq riece-server-name server-name))
 152       (set-process-sentinel process 'riece-sentinel)
 153       (set-process-filter process 'riece-filter)
 154       (if (equal server-name "")
 155           (message "Logging in to IRC server...")
 156         (message "Logging in to %s..." server-name))
 157       (if riece-reconnect-with-password ;password incorrect or not set.
 158           (unwind-protect
 159               (setq password
 160                     (condition-case nil
 161                         (let (inhibit-quit)
 162                           (if (equal server-name "")
 163                               (riece-read-passwd "Password: ")
 164                             (riece-read-passwd (format "Password for %s: "
 165                                                        server-name))))
 166                       (quit
 167                        (if (equal server-name "")
 168                            (message "Password: Quit")
 169                          (message (format "Password for %s: Quit"
 170                                           server-name)))
 171                        'quit)))
 172             (setq riece-reconnect-with-password nil)))
 173       (if (eq password 'quit)
 174           (delete-process process)
 175         (if password
 176             (riece-process-send-string process
 177                                        (format "PASS %s\r\n" password)))
 178         (riece-process-send-string process
 179                                    (format "USER %s * * :%s\r\n"
 180                                            (user-real-login-name)
 181                                            (or username
 182                                                "No information given")))
 183         (riece-process-send-string process (format "NICK %s\r\n" nickname))
 184         (with-current-buffer (process-buffer process)
 185           (setq riece-last-nickname riece-real-nickname
 186                 riece-nick-accepted 'sent
 187                 riece-coding-system coding))
 188         (setq riece-server-process-alist
 189               (cons (cons server-name process)
 190                     riece-server-process-alist))))))
 191
 192 (defun riece-reset-process-buffer (process)
 193   (save-excursion
 194     (set-buffer (process-buffer process))
 195     (if (fboundp 'set-buffer-multibyte)
 196         (set-buffer-multibyte nil))
 197     (kill-all-local-variables)
 198     (make-local-variable 'riece-real-nickname)
 199     (make-local-variable 'riece-last-nickname)
 200     (make-local-variable 'riece-nick-accepted)
 201     (make-local-variable 'riece-real-server-name)
 202     (make-local-variable 'riece-real-userhost)
 203     (make-local-variable 'riece-user-at-host)
 204     (make-local-variable 'riece-user-at-host-type)
 205     (make-local-variable 'riece-supported-user-modes)
 206     (make-local-variable 'riece-supported-channel-modes)
 207     (make-local-variable 'riece-channel-filter)
 208     (make-local-variable 'riece-server-name)
 209     (make-local-variable 'riece-read-point)
 210     (setq riece-read-point (point-min))
 211     (make-local-variable 'riece-obarray)
 212     (setq riece-obarray (make-vector riece-obarray-size 0))
 213     (make-local-variable 'riece-coding-system)
 214     (buffer-disable-undo)
 215     (erase-buffer)))
 216
 217 (defun riece-close-server-process (process)
 218   (kill-buffer (process-buffer process))
 219   (setq riece-server-process-alist
 220         (delq (rassq process riece-server-process-alist)
 221               riece-server-process-alist)))
 222
 223 (defun riece-server-process-opened (process)
 224   (not (null (memq (process-status process) '(open run)))))
 225
 226 (defun riece-server-opened (&optional server-name)
 227   (if server-name
 228       (let ((process (riece-server-process server-name)))
 229         (and process
 230              (riece-server-process-opened process)))
 231     (let ((alist riece-server-process-alist))
 232       (catch 'found
 233         (while alist
 234           (if (riece-server-process-opened (cdr (car alist)))
 235               (throw 'found t))
 236           (setq alist (cdr alist)))))))
 237
 238 (defun riece-quit-server-process (process &optional message)
 239   (if riece-quit-timeout
 240       (riece-run-at-time riece-quit-timeout nil
 241                          (lambda (process)
 242                            (if (rassq process riece-server-process-alist)
 243                                (delete-process process)))
 244                          process))
 245   (riece-process-send-string process
 246                              (if message
 247                                  (format "QUIT :%s\r\n" message)
 248                                "QUIT\r\n")))
 249
 250 (provide 'riece-server)
 251
 252 ;;; riece-server.el ends here