1 ;;; nntp.el --- nntp access for Gnus
3 ;; Copyright (C) 1987, 1988, 1989, 1990, 1992, 1993,
4 ;; 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002,
5 ;; 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
7 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
33 (require 'gnus-group
) ;; gnus-group-name-charset
37 (eval-when-compile (require 'cl
))
39 (autoload 'auth-source-user-or-password
"auth-source")
42 "NNTP access for Gnus."
45 (defvoo nntp-address nil
46 "Address of the physical nntp server.")
48 (defvoo nntp-port-number
"nntp"
49 "Port number on the physical nntp server.")
51 (defvoo nntp-server-opened-hook
'(nntp-send-mode-reader)
52 "*Hook used for sending commands to the server at startup.
53 The default value is `nntp-send-mode-reader', which makes an innd
54 server spawn an nnrpd server.")
56 (defvoo nntp-authinfo-function
'nntp-send-authinfo
57 "Function used to send AUTHINFO to the server.
58 It is called with no parameters.")
60 (defvoo nntp-server-action-alist
61 '(("nntpd 1\\.5\\.11t"
62 (remove-hook 'nntp-server-opened-hook
'nntp-send-mode-reader
))
63 ("NNRP server Netscape"
64 (setq nntp-server-list-active-group nil
)))
65 "Alist of regexps to match on server types and actions to be taken.
66 For instance, if you want Gnus to beep every time you connect
67 to innd, you could say something like:
69 \(setq nntp-server-action-alist
72 You probably don't want to do that, though.")
74 (defvoo nntp-open-connection-function
'nntp-open-network-stream
75 "*Function used for connecting to a remote system.
76 It will be called with the buffer to output in as argument.
78 Currently, five such functions are provided (please refer to their
79 respective doc string for more information), three of them establishing
80 direct connections to the nntp server, and two of them using an indirect
84 - `nntp-open-network-stream' (the default),
85 - `nntp-open-ssl-stream',
86 - `nntp-open-tls-stream',
87 - `nntp-open-netcat-stream'.
88 - `nntp-open-telnet-stream'.
91 - `nntp-open-via-rlogin-and-netcat',
92 - `nntp-open-via-rlogin-and-telnet',
93 - `nntp-open-via-telnet-and-telnet'.")
95 (defvoo nntp-never-echoes-commands nil
96 "*Non-nil means the nntp server never echoes commands.
97 It is reported that some nntps server doesn't echo commands. So, you
98 may want to set this to non-nil in the method for such a server setting
99 `nntp-open-connection-function' to `nntp-open-ssl-stream' for example.
100 Note that the `nntp-open-connection-functions-never-echo-commands'
101 variable overrides the nil value of this variable.")
103 (defvoo nntp-open-connection-functions-never-echo-commands
104 '(nntp-open-network-stream)
105 "*List of functions that never echo commands.
106 Add or set a function which you set to `nntp-open-connection-function'
107 to this list if it does not echo commands. Note that a non-nil value
108 of the `nntp-never-echoes-commands' variable overrides this variable.")
110 (defvoo nntp-pre-command nil
111 "*Pre-command to use with the various nntp-open-via-* methods.
112 This is where you would put \"runsocks\" or stuff like that.")
114 (defvoo nntp-telnet-command
"telnet"
115 "*Telnet command used to connect to the nntp server.
116 This command is used by the methods `nntp-open-telnet-stream',
117 `nntp-open-via-rlogin-and-telnet' and `nntp-open-via-telnet-and-telnet'.")
119 (defvoo nntp-telnet-switches
'("-8")
120 "*Switches given to the telnet command `nntp-telnet-command'.")
122 (defvoo nntp-end-of-line
"\r\n"
123 "*String to use on the end of lines when talking to the NNTP server.
124 This is \"\\r\\n\" by default, but should be \"\\n\" when using an indirect
125 connection method (nntp-open-via-*).")
127 (defvoo nntp-via-rlogin-command
"rsh"
128 "*Rlogin command used to connect to an intermediate host.
129 This command is used by the methods `nntp-open-via-rlogin-and-telnet'
130 and `nntp-open-via-rlogin-and-netcat'. The default is \"rsh\", but \"ssh\"
131 is a popular alternative.")
133 (defvoo nntp-via-rlogin-command-switches nil
134 "*Switches given to the rlogin command `nntp-via-rlogin-command'.
135 If you use \"ssh\" for `nntp-via-rlogin-command', you may set this to
136 \(\"-C\") in order to compress all data connections, otherwise set this
137 to \(\"-t\" \"-e\" \"none\") or (\"-C\" \"-t\" \"-e\" \"none\") if the telnet
138 command requires a pseudo-tty allocation on an intermediate host.")
140 (defvoo nntp-via-telnet-command
"telnet"
141 "*Telnet command used to connect to an intermediate host.
142 This command is used by the `nntp-open-via-telnet-and-telnet' method.")
144 (defvoo nntp-via-telnet-switches
'("-8")
145 "*Switches given to the telnet command `nntp-via-telnet-command'.")
147 (defvoo nntp-netcat-command
"nc"
148 "*Netcat command used to connect to the nntp server.
149 This command is used by the `nntp-open-netcat-stream' and
150 `nntp-open-via-rlogin-and-netcat' methods.")
152 (defvoo nntp-netcat-switches nil
153 "*Switches given to the netcat command `nntp-netcat-command'.")
155 (defvoo nntp-via-user-name nil
156 "*User name to log in on an intermediate host with.
157 This variable is used by the various nntp-open-via-* methods.")
159 (defvoo nntp-via-user-password nil
160 "*Password to use to log in on an intermediate host with.
161 This variable is used by the `nntp-open-via-telnet-and-telnet' method.")
163 (defvoo nntp-via-address nil
164 "*Address of an intermediate host to connect to.
165 This variable is used by the various nntp-open-via-* methods.")
167 (defvoo nntp-via-envuser nil
168 "*Whether both telnet client and server support the ENVIRON option.
169 If non-nil, there will be no prompt for a login name.")
171 (defvoo nntp-via-shell-prompt
"bash\\|\$ *\r?$\\|> *\r?"
172 "*Regular expression to match the shell prompt on an intermediate host.
173 This variable is used by the `nntp-open-via-telnet-and-telnet' method.")
175 (defvoo nntp-large-newsgroup
50
176 "*The number of articles which indicates a large newsgroup.
177 If the number of articles is greater than the value, verbose
178 messages will be shown to indicate the current status.")
180 (defvoo nntp-maximum-request
400
181 "*The maximum number of the requests sent to the NNTP server at one time.
182 If Emacs hangs up while retrieving headers, set the variable to a
185 (defvoo nntp-nov-is-evil nil
186 "*If non-nil, nntp will never attempt to use XOVER when talking to the server.")
188 (defvoo nntp-xover-commands
'("XOVER" "XOVERVIEW")
189 "*List of strings that are used as commands to fetch NOV lines from a server.
190 The strings are tried in turn until a positive response is gotten. If
191 none of the commands are successful, nntp will just grab headers one
194 (defvoo nntp-nov-gap
5
195 "*Maximum allowed gap between two articles.
196 If the gap between two consecutive articles is bigger than this
197 variable, split the XOVER request into two requests.")
199 (defvoo nntp-xref-number-is-evil nil
200 "*If non-nil, Gnus never trusts article numbers in the Xref header.
201 Some news servers, e.g., ones running Diablo, run multiple engines
202 having the same articles but article numbers are not kept synchronized
203 between them. If you connect to such a server, set this to a non-nil
204 value, and Gnus never uses article numbers (that appear in the Xref
205 header and vary by which engine is chosen) to refer to articles.")
207 (defvoo nntp-prepare-server-hook nil
208 "*Hook run before a server is opened.
209 If can be used to set up a server remotely, for instance. Say you
210 have an account at the machine \"other.machine\". This machine has
211 access to an NNTP server that you can't access locally. You could
212 then use this hook to rsh to the remote machine and start a proxy NNTP
213 server there that you can connect to. See also
214 `nntp-open-connection-function'")
216 (defvoo nntp-coding-system-for-read
'binary
217 "*Coding system to read from NNTP.")
219 (defvoo nntp-coding-system-for-write
'binary
220 "*Coding system to write to NNTP.")
223 (defvoo nntp-marks-is-evil nil
224 "*If non-nil, Gnus will never generate and use marks file for nntp groups.
225 See `nnml-marks-is-evil' for more information.")
227 (defvoo nntp-marks-file-name
".marks")
228 (defvoo nntp-marks nil
)
229 (defvar nntp-marks-modtime
(gnus-make-hashtable))
231 (defcustom nntp-marks-directory
232 (nnheader-concat gnus-directory
"marks/")
233 "*The directory where marks for nntp groups will be stored."
237 (defcustom nntp-authinfo-file
"~/.authinfo"
238 ".netrc-like file that holds nntp authinfo passwords."
242 (repeat :tag
"Entries"
245 :value
("" ("login" .
"") ("password" .
""))
249 (const :format
"" "login")
250 (string :format
"Login: %v"))
252 (const :format
"" "password")
253 (string :format
"Password: %v")))))))
257 (defvoo nntp-connection-timeout nil
258 "*Number of seconds to wait before an nntp connection times out.
259 If this variable is nil, which is the default, no timers are set.
260 NOTE: This variable is never seen to work in Emacs 20 and XEmacs 21.")
262 (defvoo nntp-prepare-post-hook nil
263 "*Hook run just before posting an article. It is supposed to be used
264 to insert Cancel-Lock headers.")
266 ;;; Internal variables.
268 (defvar nntp-record-commands nil
269 "*If non-nil, nntp will record all commands in the \"*nntp-log*\" buffer.")
271 (defvar nntp-have-messaged nil
)
273 (defvar nntp-process-wait-for nil
)
274 (defvar nntp-process-to-buffer nil
)
275 (defvar nntp-process-callback nil
)
276 (defvar nntp-process-decode nil
)
277 (defvar nntp-process-start-point nil
)
278 (defvar nntp-inside-change-function nil
)
279 (defvoo nntp-last-command-time nil
)
280 (defvoo nntp-last-command nil
)
281 (defvoo nntp-authinfo-password nil
)
282 (defvoo nntp-authinfo-user nil
)
283 (defvoo nntp-authinfo-force nil
)
285 (defvar nntp-connection-list nil
)
287 (defvoo nntp-server-type nil
)
288 (defvoo nntp-connection-alist nil
)
289 (defvoo nntp-status-string
"")
290 (defconst nntp-version
"nntp 5.0")
291 (defvoo nntp-inhibit-erase nil
)
292 (defvoo nntp-inhibit-output nil
)
294 (defvoo nntp-server-xover
'try
)
295 (defvoo nntp-server-list-active-group
'try
)
297 (defvar nntp-async-needs-kluge
298 (string-match "^GNU Emacs 20\\.3\\." (emacs-version))
299 "*When non-nil, nntp will poll asynchronous connections
300 once a second. By default, this is turned on only for Emacs
301 20.3, which has a bug that breaks nntp's normal method of
302 noticing asynchronous data.")
304 (defvar nntp-async-timer nil
)
305 (defvar nntp-async-process-list nil
)
307 (defvar nntp-ssl-program
308 "openssl s_client -quiet -ssl3 -connect %s:%p"
309 "A string containing commands for SSL connections.
310 Within a string, %s is replaced with the server address and %p with
311 port number on server. The program should accept IMAP commands on
312 stdin and return responses to stdout.")
314 (defvar nntp-authinfo-rejected nil
315 "A custom error condition used to report 'Authentication Rejected' errors.
316 Condition handlers that match just this condition ensure that the nntp
317 backend doesn't catch this error.")
318 (put 'nntp-authinfo-rejected
'error-conditions
'(error nntp-authinfo-rejected
))
319 (put 'nntp-authinfo-rejected
'error-message
"Authorization Rejected")
323 ;;; Internal functions.
325 (defsubst nntp-send-string
(process string
)
326 "Send STRING to PROCESS."
327 ;; We need to store the time to provide timeouts, and
328 ;; to store the command so the we can replay the command
329 ;; if the server gives us an AUTHINFO challenge.
330 (setq nntp-last-command-time
(current-time)
331 nntp-last-command string
)
332 (when nntp-record-commands
333 (nntp-record-command string
))
334 (process-send-string process
(concat string nntp-end-of-line
))
335 (or (memq (process-status process
) '(open run
))
336 (nntp-report "Server closed connection")))
338 (defun nntp-record-command (string)
339 "Record the command STRING."
340 (with-current-buffer (get-buffer-create "*nntp-log*")
341 (goto-char (point-max))
342 (let ((time (current-time)))
343 (insert (format-time-string "%Y%m%dT%H%M%S" time
)
344 "." (format "%03d" (/ (nth 2 time
) 1000))
345 " " nntp-address
" " string
"\n"))))
347 (defun nntp-report (&rest args
)
348 "Report an error from the nntp backend. The first string in ARGS
349 can be a format string. For some commands, the failed command may be
350 retried once before actually displaying the error report."
352 (when nntp-record-commands
353 (nntp-record-command "*** CALLED nntp-report ***"))
355 (nnheader-report 'nntp args
)
359 (defun nntp-report-1 (&rest args
)
360 "Throws out to nntp-with-open-group-error so that the connection may
361 be restored and the command retried."
363 (when nntp-record-commands
364 (nntp-record-command "*** CONNECTION LOST ***"))
366 (throw 'nntp-with-open-group-error t
))
368 (defmacro nntp-insert-buffer-substring
(buffer &optional start end
)
369 "Copy string from unibyte buffer to multibyte current buffer."
370 (if (featurep 'xemacs
)
371 `(insert-buffer-substring ,buffer
,start
,end
)
372 `(if enable-multibyte-characters
373 (insert (with-current-buffer ,buffer
374 (mm-string-to-multibyte
376 `(buffer-substring (or ,start
(point-min))
377 (or ,end
(point-max)))
379 (insert-buffer-substring ,buffer
,start
,end
))))
381 (defmacro nntp-copy-to-buffer
(buffer start end
)
382 "Copy string from unibyte current buffer to multibyte buffer."
383 (if (featurep 'xemacs
)
384 `(copy-to-buffer ,buffer
,start
,end
)
385 `(let ((string (buffer-substring ,start
,end
)))
386 (with-current-buffer ,buffer
388 (insert (if enable-multibyte-characters
389 (mm-string-to-multibyte string
)
391 (goto-char (point-min))
394 (defsubst nntp-wait-for
(process wait-for buffer
&optional decode discard
)
395 "Wait for WAIT-FOR to arrive from PROCESS."
397 (with-current-buffer (process-buffer process
)
398 (goto-char (point-min))
400 (while (and (or (not (memq (char-after (point)) '(?
2 ?
3 ?
4 ?
5)))
401 (looking-at "48[02]"))
402 (memq (process-status process
) '(open run
)))
403 (cond ((looking-at "480")
404 (nntp-handle-authinfo process
))
406 (nnheader-report 'nntp
(get 'nntp-authinfo-rejected
'error-message
))
407 (signal 'nntp-authinfo-rejected nil
))
408 ((looking-at "^.*\n")
409 (delete-region (point) (progn (forward-line 1) (point)))))
410 (nntp-accept-process-output process
)
411 (goto-char (point-min)))
416 (nntp-snarf-error-message)
418 ((not (memq (process-status process
) '(open run
)))
419 (nntp-report "Server closed connection"))
421 (goto-char (point-max))
422 (let ((limit (point-min))
424 (while (not (re-search-backward wait-for limit t
))
425 (nntp-accept-process-output process
)
426 ;; We assume that whatever we wait for is less than 1000
428 (setq limit
(max (- (point-max) 1000) (point-min)))
429 (goto-char (point-max)))
430 (setq response
(match-string 0))
431 (with-current-buffer nntp-server-buffer
432 (setq nntp-process-response response
)))
433 (nntp-decode-text (not decode
))
435 (with-current-buffer buffer
436 (goto-char (point-max))
437 (nntp-insert-buffer-substring (process-buffer process
))
438 ;; Nix out "nntp reading...." message.
439 (when nntp-have-messaged
440 (setq nntp-have-messaged nil
)
441 (nnheader-message 5 ""))))
446 (defun nntp-kill-buffer (buffer)
447 (when (buffer-name buffer
)
449 (nnheader-init-server-buffer)))
451 (defun nntp-erase-buffer (buffer)
452 "Erase contents of BUFFER."
453 (with-current-buffer buffer
456 (defsubst nntp-find-connection
(buffer)
457 "Find the connection delivering to BUFFER."
458 (let ((alist nntp-connection-alist
)
459 (buffer (if (stringp buffer
) (get-buffer buffer
) buffer
))
461 (while (and alist
(setq entry
(pop alist
)))
462 (when (eq buffer
(cadr entry
))
463 (setq process
(car entry
)
466 (if (memq (process-status process
) '(open run
))
468 (nntp-kill-buffer (process-buffer process
))
469 (setq nntp-connection-alist
(delq entry nntp-connection-alist
))
472 (defsubst nntp-find-connection-entry
(buffer)
473 "Return the entry for the connection to BUFFER."
474 (assq (nntp-find-connection buffer
) nntp-connection-alist
))
476 (defun nntp-find-connection-buffer (buffer)
477 "Return the process connection buffer tied to BUFFER."
478 (let ((process (nntp-find-connection buffer
)))
480 (process-buffer process
))))
482 (defsubst nntp-retrieve-data
(command address port buffer
483 &optional wait-for callback decode
)
484 "Use COMMAND to retrieve data into BUFFER from PORT on ADDRESS."
485 (let ((process (or (nntp-find-connection buffer
)
486 (nntp-open-connection buffer
))))
489 (unless (or nntp-inhibit-erase nnheader-callback-function
)
490 (nntp-erase-buffer (process-buffer process
)))
494 (nntp-send-string process command
))
496 ((eq callback
'ignore
)
498 ((and callback wait-for
)
499 (nntp-async-wait process wait-for buffer decode callback
)
502 (nntp-wait-for process wait-for buffer decode
))
504 (nntp-authinfo-rejected
505 (signal 'nntp-authinfo-rejected
(cdr err
)))
507 (nnheader-report 'nntp
"Couldn't open connection to %s: %s"
510 (message "Quit retrieving data from nntp")
513 (nnheader-report 'nntp
"Couldn't open connection to %s" address
))))
515 (defsubst nntp-send-command
(wait-for &rest strings
)
516 "Send STRINGS to server and wait until WAIT-FOR returns."
517 (when (and (not nnheader-callback-function
)
518 (not nntp-inhibit-output
))
519 (nntp-erase-buffer nntp-server-buffer
))
520 (let* ((command (mapconcat 'identity strings
" "))
521 (process (nntp-find-connection nntp-server-buffer
))
522 (buffer (and process
(process-buffer process
)))
523 (pos (and buffer
(with-current-buffer buffer
(point)))))
526 (nntp-retrieve-data command
527 nntp-address nntp-port-number
529 wait-for nnheader-callback-function
)
530 ;; If nothing to wait for, still remove possibly echo'ed commands.
531 ;; We don't have echoes if `nntp-never-echoes-commands' is non-nil
532 ;; or the value of `nntp-open-connection-function' is in
533 ;; `nntp-open-connection-functions-never-echo-commands', so we
534 ;; skip this in that cases.
536 nntp-never-echoes-commands
538 nntp-open-connection-function
539 nntp-open-connection-functions-never-echo-commands
))
540 (nntp-accept-response)
541 (with-current-buffer buffer
543 (if (looking-at (regexp-quote command
))
544 (delete-region pos
(progn (forward-line 1)
546 (nnheader-report 'nntp
"Couldn't open connection to %s."
549 (defun nntp-send-command-nodelete (wait-for &rest strings
)
550 "Send STRINGS to server and wait until WAIT-FOR returns."
551 (let* ((command (mapconcat 'identity strings
" "))
552 (process (nntp-find-connection nntp-server-buffer
))
553 (buffer (and process
(process-buffer process
)))
554 (pos (and buffer
(with-current-buffer buffer
(point)))))
557 (nntp-retrieve-data command
558 nntp-address nntp-port-number
560 wait-for nnheader-callback-function
)
561 ;; If nothing to wait for, still remove possibly echo'ed commands
563 (nntp-accept-response)
564 (with-current-buffer buffer
566 (if (looking-at (regexp-quote command
))
567 (delete-region pos
(progn (forward-line 1)
569 (nnheader-report 'nntp
"Couldn't open connection to %s."
572 (defun nntp-send-command-and-decode (wait-for &rest strings
)
573 "Send STRINGS to server and wait until WAIT-FOR returns."
574 (when (and (not nnheader-callback-function
)
575 (not nntp-inhibit-output
))
576 (nntp-erase-buffer nntp-server-buffer
))
577 (let* ((command (mapconcat 'identity strings
" "))
578 (process (nntp-find-connection nntp-server-buffer
))
579 (buffer (and process
(process-buffer process
)))
580 (pos (and buffer
(with-current-buffer buffer
(point)))))
583 (nntp-retrieve-data command
584 nntp-address nntp-port-number
586 wait-for nnheader-callback-function t
)
587 ;; If nothing to wait for, still remove possibly echo'ed commands
589 (nntp-accept-response)
590 (with-current-buffer buffer
592 (if (looking-at (regexp-quote command
))
593 (delete-region pos
(progn (forward-line 1) (point-at-bol))))
595 (nnheader-report 'nntp
"Couldn't open connection to %s."
599 (defun nntp-send-buffer (wait-for)
600 "Send the current buffer to server and wait until WAIT-FOR returns."
601 (when (and (not nnheader-callback-function
)
602 (not nntp-inhibit-output
))
604 (nntp-find-connection-buffer nntp-server-buffer
)))
606 ;; Make sure we did not forget to encode some of the content.
607 (assert (save-excursion (goto-char (point-min))
608 (not (re-search-forward "[^\000-\377]" nil t
))))
609 (mm-disable-multibyte)
610 (process-send-region (nntp-find-connection nntp-server-buffer
)
611 (point-min) (point-max))
613 nil nntp-address nntp-port-number nntp-server-buffer
614 wait-for nnheader-callback-function
))
618 ;;; Interface functions.
620 (nnoo-define-basics nntp
)
622 (defsubst nntp-next-result-arrived-p
()
624 ;; A result that starts with a 2xx code is terminated by
625 ;; a line with only a "." on it.
626 ((eq (char-after) ?
2)
627 (if (re-search-forward "\n\\.\r?\n" nil t
)
629 ;; Some broken news servers add another dot at the end.
630 ;; Protect against inflooping there.
631 (while (looking-at "^\\.\r?\n")
635 ;; A result that starts with a 3xx or 4xx code is terminated
638 (if (search-forward "\n" nil t
)
646 (defvar nntp-with-open-group-internal nil
)
647 (defvar nntp-report-n nil
))
649 (defun nntp-with-open-group-function (-group -server -connectionless -bodyfun
)
650 "Protect against servers that don't like clients that keep idle connections opens.
651 The problem being that these servers may either close a connection or
652 simply ignore any further requests on a connection. Closed
653 connections are not detected until `accept-process-output' has updated
654 the `process-status'. Dropped connections are not detected until the
655 connection timeouts (which may be several minutes) or
656 `nntp-connection-timeout' has expired. When these occur
657 `nntp-with-open-group', opens a new connection then re-issues the NNTP
658 command whose response triggered the error."
659 (letf ((nntp-report-n (symbol-function 'nntp-report
))
660 ((symbol-function 'nntp-report
) (symbol-function 'nntp-report-1
))
661 (nntp-with-open-group-internal nil
))
662 (while (catch 'nntp-with-open-group-error
663 ;; Open the connection to the server
664 ;; NOTE: Existing connections are NOT tested.
665 (nntp-possibly-change-group -group -server -connectionless
)
668 (and nntp-connection-timeout
670 nntp-connection-timeout nil
672 (let* ((-process (nntp-find-connection
674 (-buffer (and -process
675 (process-buffer -process
))))
676 ;; When I an able to identify the
677 ;; connection to the server AND I've
678 ;; received NO reponse for
679 ;; nntp-connection-timeout seconds.
680 (when (and -buffer
(eq 0 (buffer-size -buffer
)))
681 ;; Close the connection. Take no
682 ;; other action as the accept input
683 ;; code will handle the closed
685 (nntp-kill-buffer -buffer
))))))))
687 (setq nntp-with-open-group-internal
691 (unless debug-on-quit
693 (signal 'quit nil
))))
695 (nnheader-cancel-timer -timer
)))
697 (setf (symbol-function 'nntp-report
) nntp-report-n
))
698 nntp-with-open-group-internal
))
700 (defmacro nntp-with-open-group
(group server
&optional connectionless
&rest forms
)
701 "Protect against servers that don't like clients that keep idle connections opens.
702 The problem being that these servers may either close a connection or
703 simply ignore any further requests on a connection. Closed
704 connections are not detected until `accept-process-output' has updated
705 the `process-status'. Dropped connections are not detected until the
706 connection timeouts (which may be several minutes) or
707 `nntp-connection-timeout' has expired. When these occur
708 `nntp-with-open-group', opens a new connection then re-issues the NNTP
709 command whose response triggered the error."
710 (declare (indent 2) (debug (form form
[&optional symbolp
] def-body
)))
711 (when (and (listp connectionless
)
712 (not (eq connectionless nil
)))
713 (setq forms
(cons connectionless forms
)
715 `(nntp-with-open-group-function ,group
,server
,connectionless
(lambda () ,@forms
)))
717 (deffoo nntp-retrieve-headers
(articles &optional group server fetch-old
)
718 "Retrieve the headers of ARTICLES."
719 (nntp-with-open-group
721 (with-current-buffer (nntp-find-connection-buffer nntp-server-buffer
)
723 (if (and (not gnus-nov-is-evil
)
724 (not nntp-nov-is-evil
)
725 (nntp-retrieve-headers-with-xover articles fetch-old
))
726 ;; We successfully retrieved the headers via XOVER.
728 ;; XOVER didn't work, so we do it the hard, slow and inefficient
730 (let ((number (length articles
))
734 (last-point (point-min))
735 (buf (nntp-find-connection-buffer nntp-server-buffer
))
736 (nntp-inhibit-erase t
)
738 ;; Send HEAD commands.
739 (while (setq article
(pop articles
))
742 "HEAD" (if (numberp article
)
743 (int-to-string article
)
744 ;; `articles' is either a list of article numbers
745 ;; or a list of article IDs.
748 ;; Every 400 requests we have to read the stream in
749 ;; order to avoid deadlocks.
750 (when (or (null articles
) ;All requests have been sent.
751 (zerop (% count nntp-maximum-request
)))
752 (nntp-accept-response)
755 (goto-char last-point
)
757 (while (nntp-next-result-arrived-p)
758 (setq last-point
(point))
761 ;; If number of headers is greater than 100, give
762 ;; informative messages.
763 (and (numberp nntp-large-newsgroup
)
764 (> number nntp-large-newsgroup
)
765 (zerop (% received
20))
766 (nnheader-message 6 "NNTP: Receiving headers... %d%%"
767 (/ (* received
100) number
)))
768 (nntp-accept-response))))
769 (and (numberp nntp-large-newsgroup
)
770 (> number nntp-large-newsgroup
)
771 (nnheader-message 6 "NNTP: Receiving headers...done"))
773 ;; Now all of replies are received. Fold continuation lines.
774 (nnheader-fold-continuation-lines)
775 ;; Remove all "\r"'s.
777 (nntp-copy-to-buffer nntp-server-buffer
(point-min) (point-max))
780 (deffoo nntp-retrieve-groups
(groups &optional server
)
781 "Retrieve group info on GROUPS."
782 (nntp-with-open-group
784 (when (nntp-find-connection-buffer nntp-server-buffer
)
787 ;; Erase nntp-server-buffer before nntp-inhibit-erase.
788 (nntp-erase-buffer nntp-server-buffer
)
789 (set-buffer (nntp-find-connection-buffer nntp-server-buffer
))
790 ;; The first time this is run, this variable is `try'. So we
792 (when (eq nntp-server-list-active-group
'try
)
793 (nntp-try-list-active (car groups
)))
798 (last-point (point-min))
799 (nntp-inhibit-erase t
)
800 (buf (nntp-find-connection-buffer nntp-server-buffer
))
801 (command (if nntp-server-list-active-group
802 "LIST ACTIVE" "GROUP")))
804 ;; Timeout may have killed the buffer.
805 (unless (gnus-buffer-live-p buf
)
806 (nnheader-report 'nntp
"Connection to %s is closed." server
)
808 ;; Send the command to the server.
809 (nntp-send-command nil command
(pop groups
))
811 ;; Every 400 requests we have to read the stream in
812 ;; order to avoid deadlocks.
813 (when (or (null groups
) ;All requests have been sent.
814 (zerop (% count nntp-maximum-request
)))
815 (nntp-accept-response)
816 (while (and (gnus-buffer-live-p buf
)
818 ;; Search `blue moon' in this file for the
819 ;; reason why set-buffer here.
821 (goto-char last-point
)
823 (while (re-search-forward "^[0-9]" nil t
)
825 (setq last-point
(point))
827 (nntp-accept-response))))
829 ;; Wait for the reply from the final command.
830 (unless (gnus-buffer-live-p buf
)
831 (nnheader-report 'nntp
"Connection to %s is closed." server
)
834 (goto-char (point-max))
835 (re-search-backward "^[0-9]" nil t
)
836 (when (looking-at "^[23]")
837 (while (and (gnus-buffer-live-p buf
)
840 (goto-char (point-max))
841 (if (not nntp-server-list-active-group
)
842 (not (re-search-backward "\r?\n"
844 (not (re-search-backward "^\\.\r?\n"
846 (nntp-accept-response)))
848 ;; Now all replies are received. We remove CRs.
849 (unless (gnus-buffer-live-p buf
)
850 (nnheader-report 'nntp
"Connection to %s is closed." server
)
853 (goto-char (point-min))
854 (while (search-forward "\r" nil t
)
855 (replace-match "" t t
))
857 (if (not nntp-server-list-active-group
)
859 (nntp-copy-to-buffer nntp-server-buffer
860 (point-min) (point-max))
862 ;; We have read active entries, so we just delete the
864 (goto-char (point-min))
865 (while (re-search-forward "^[.2-5]" nil t
)
866 (delete-region (match-beginning 0)
867 (progn (forward-line 1) (point))))
868 (nntp-copy-to-buffer nntp-server-buffer
(point-min) (point-max))
871 (deffoo nntp-retrieve-articles
(articles &optional group server
)
872 (nntp-with-open-group
875 (let ((number (length articles
))
879 (last-point (point-min))
880 (buf (nntp-find-connection-buffer nntp-server-buffer
))
881 (nntp-inhibit-erase t
)
882 (map (apply 'vector articles
))
887 ;; Send ARTICLE command.
888 (while (setq article
(pop articles
))
891 "ARTICLE" (if (numberp article
)
892 (int-to-string article
)
893 ;; `articles' is either a list of article numbers
894 ;; or a list of article IDs.
897 ;; Every 400 requests we have to read the stream in
898 ;; order to avoid deadlocks.
899 (when (or (null articles
) ;All requests have been sent.
900 (zerop (% count nntp-maximum-request
)))
901 (nntp-accept-response)
904 (goto-char last-point
)
906 (while (nntp-next-result-arrived-p)
907 (aset map received
(cons (aref map received
) (point)))
908 (setq last-point
(point))
911 ;; If number of headers is greater than 100, give
912 ;; informative messages.
913 (and (numberp nntp-large-newsgroup
)
914 (> number nntp-large-newsgroup
)
915 (zerop (% received
20))
916 (nnheader-message 6 "NNTP: Receiving articles... %d%%"
917 (/ (* received
100) number
)))
918 (nntp-accept-response))))
919 (and (numberp nntp-large-newsgroup
)
920 (> number nntp-large-newsgroup
)
921 (nnheader-message 6 "NNTP: Receiving articles...done"))
923 ;; Now we have all the responses. We go through the results,
924 ;; wash it and copy it over to the server buffer.
925 (set-buffer nntp-server-buffer
)
927 (setq last-point
(point-min))
931 (setq point
(goto-char (point-max)))
933 (nntp-insert-buffer-substring buf last-point
(cdr entry
))
935 (setq last-point
(cdr entry
))
938 (cons (car entry
) point
))
941 (defun nntp-try-list-active (group)
942 (nntp-list-active-group group
)
943 (with-current-buffer nntp-server-buffer
944 (goto-char (point-min))
946 (looking-at "5[0-9]+"))
947 (setq nntp-server-list-active-group nil
))
949 (setq nntp-server-list-active-group t
)))))
951 (deffoo nntp-list-active-group
(group &optional server
)
952 "Return the active info on GROUP (which can be a regexp)."
953 (nntp-with-open-group
955 (nntp-send-command "^\\.*\r?\n" "LIST ACTIVE" group
)))
957 (deffoo nntp-request-group-articles
(group &optional server
)
958 "Return the list of existing articles in GROUP."
959 (nntp-with-open-group
961 (nntp-send-command "^\\.*\r?\n" "LISTGROUP" group
)))
963 (deffoo nntp-request-article
(article &optional group server buffer command
)
964 (nntp-with-open-group
966 (when (nntp-send-command-and-decode
967 "\r?\n\\.\r?\n" "ARTICLE"
968 (if (numberp article
) (int-to-string article
) article
))
970 (not (equal buffer nntp-server-buffer
)))
971 (with-current-buffer nntp-server-buffer
972 (copy-to-buffer buffer
(point-min) (point-max))
973 (nntp-find-group-and-number group
))
974 (nntp-find-group-and-number group
)))))
976 (deffoo nntp-request-head
(article &optional group server
)
977 (nntp-with-open-group
979 (when (nntp-send-command
980 "\r?\n\\.\r?\n" "HEAD"
981 (if (numberp article
) (int-to-string article
) article
))
983 (nntp-find-group-and-number group
)
984 (nntp-decode-text)))))
986 (deffoo nntp-request-body
(article &optional group server
)
987 (nntp-with-open-group
989 (nntp-send-command-and-decode
990 "\r?\n\\.\r?\n" "BODY"
991 (if (numberp article
) (int-to-string article
) article
))))
993 (deffoo nntp-request-group
(group &optional server dont-check
)
994 (nntp-with-open-group
996 (when (nntp-send-command "^[245].*\n" "GROUP" group
)
997 (let ((entry (nntp-find-connection-entry nntp-server-buffer
)))
998 (setcar (cddr entry
) group
)))))
1000 (deffoo nntp-close-group
(group &optional server
)
1003 (deffoo nntp-server-opened
(&optional server
)
1004 "Say whether a connection to SERVER has been opened."
1005 (and (nnoo-current-server-p 'nntp server
)
1007 (gnus-buffer-live-p nntp-server-buffer
)
1008 (nntp-find-connection nntp-server-buffer
)))
1010 (deffoo nntp-open-server
(server &optional defs connectionless
)
1011 (nnheader-init-server-buffer)
1012 (if (nntp-server-opened server
)
1014 (when (or (stringp (car defs
))
1015 (numberp (car defs
)))
1016 (setq defs
(cons (list 'nntp-port-number
(car defs
)) (cdr defs
))))
1017 (unless (assq 'nntp-address defs
)
1018 (setq defs
(append defs
(list (list 'nntp-address server
)))))
1019 (nnoo-change-server 'nntp server defs
)
1020 (unless connectionless
1021 (or (nntp-find-connection nntp-server-buffer
)
1022 (nntp-open-connection nntp-server-buffer
)))))
1024 (deffoo nntp-close-server
(&optional server
)
1025 (nntp-possibly-change-group nil server t
)
1026 (let ((process (nntp-find-connection nntp-server-buffer
)))
1028 (when (memq (process-status process
) '(open run
))
1030 (nntp-send-string process
"QUIT")
1031 (unless (eq nntp-open-connection-function
'nntp-open-network-stream
)
1032 ;; Ok, this is evil, but when using telnet and stuff
1033 ;; as the connection method, it's important that the
1034 ;; QUIT command actually is sent out before we kill
1037 (nntp-kill-buffer (process-buffer process
))
1038 (setq process
(car (pop nntp-connection-alist
))))
1039 (nnoo-close-server 'nntp
)))
1041 (deffoo nntp-request-close
()
1043 (while (setq process
(pop nntp-connection-list
))
1044 (when (memq (process-status process
) '(open run
))
1046 (nntp-send-string process
"QUIT")
1047 (unless (eq nntp-open-connection-function
'nntp-open-network-stream
)
1048 ;; Ok, this is evil, but when using telnet and stuff
1049 ;; as the connection method, it's important that the
1050 ;; QUIT command actually is sent out before we kill
1053 (nntp-kill-buffer (process-buffer process
)))))
1055 (deffoo nntp-request-list
(&optional server
)
1056 (nntp-with-open-group
1058 (nntp-send-command-and-decode "\r?\n\\.\r?\n" "LIST")))
1060 (deffoo nntp-request-list-newsgroups
(&optional server
)
1061 (nntp-with-open-group
1063 (nntp-send-command "\r?\n\\.\r?\n" "LIST NEWSGROUPS")))
1065 (deffoo nntp-request-newgroups
(date &optional server
)
1066 (nntp-with-open-group
1068 (with-current-buffer nntp-server-buffer
1069 (let* ((time (date-to-time date
))
1070 (ls (- (cadr time
) (nth 8 (decode-time time
)))))
1072 (setcar time
(1- (car time
)))
1073 (setcar (cdr time
) (+ ls
65536)))
1075 (setcar time
(1+ (car time
)))
1076 (setcar (cdr time
) (- ls
65536)))
1078 (setcar (cdr time
) ls
)))
1081 "^\\.\r?\n" "NEWGROUPS"
1082 (format-time-string "%y%m%d %H%M%S" time
)
1084 (nntp-decode-text))))))
1086 (deffoo nntp-request-post
(&optional server
)
1087 (nntp-with-open-group
1089 (when (nntp-send-command "^[23].*\r?\n" "POST")
1090 (let ((response (with-current-buffer nntp-server-buffer
1091 nntp-process-response
))
1094 (string-match "^[23].*\\(<[^\t\n @<>]+@[^\t\n @<>]+>\\)"
1096 (setq server-id
(match-string 1 response
))
1097 (narrow-to-region (goto-char (point-min))
1098 (if (search-forward "\n\n" nil t
)
1101 (unless (mail-fetch-field "Message-ID")
1102 (goto-char (point-min))
1103 (insert "Message-ID: " server-id
"\n"))
1105 (run-hooks 'nntp-prepare-post-hook
)
1106 (nntp-send-buffer "^[23].*\n")))))
1108 (deffoo nntp-request-type
(group article
)
1111 (deffoo nntp-asynchronous-p
()
1114 (deffoo nntp-request-set-mark
(group actions
&optional server
)
1115 (unless nntp-marks-is-evil
1116 (nntp-possibly-create-directory group server
)
1117 (nntp-open-marks group server
)
1118 (dolist (action actions
)
1119 (let ((range (nth 0 action
))
1120 (what (nth 1 action
))
1121 (marks (nth 2 action
)))
1122 (assert (or (eq what
'add
) (eq what
'del
)) nil
1123 "Unknown request-set-mark action: %s" what
)
1124 (dolist (mark marks
)
1125 (setq nntp-marks
(gnus-update-alist-soft
1127 (funcall (if (eq what
'add
) 'gnus-range-add
1128 'gnus-remove-from-range
)
1129 (cdr (assoc mark nntp-marks
)) range
)
1131 (nntp-save-marks group server
))
1134 (deffoo nntp-request-update-info
(group info
&optional server
)
1135 (unless nntp-marks-is-evil
1136 (nntp-possibly-create-directory group server
)
1137 (when (nntp-marks-changed-p group server
)
1138 (nnheader-message 8 "Updating marks for %s..." group
)
1139 (nntp-open-marks group server
)
1140 ;; Update info using `nntp-marks'.
1141 (mapc (lambda (pred)
1142 (unless (memq (cdr pred
) gnus-article-unpropagated-mark-lists
)
1143 (gnus-info-set-marks
1145 (gnus-update-alist-soft
1147 (cdr (assq (cdr pred
) nntp-marks
))
1148 (gnus-info-marks info
))
1150 gnus-article-mark-lists
)
1151 (let ((seen (cdr (assq 'read nntp-marks
))))
1152 (gnus-info-set-read info
1153 (if (and (integerp (car seen
))
1155 (list (cons (car seen
) (car seen
)))
1157 (nnheader-message 8 "Updating marks for %s...done" group
)))
1162 ;;; Hooky functions.
1164 (defun nntp-send-mode-reader ()
1165 "Send the MODE READER command to the nntp server.
1166 This function is supposed to be called from `nntp-server-opened-hook'.
1167 It will make innd servers spawn an nnrpd process to allow actual article
1169 (nntp-send-command "^.*\n" "MODE READER"))
1171 (defun nntp-send-authinfo (&optional send-if-force
)
1172 "Send the AUTHINFO to the nntp server.
1173 It will look in the \"~/.authinfo\" file for matching entries. If
1174 nothing suitable is found there, it will prompt for a user name
1177 If SEND-IF-FORCE, only send authinfo to the server if the
1178 .authinfo file has the FORCE token."
1179 (let* ((list (netrc-parse nntp-authinfo-file
))
1180 (alist (netrc-machine list nntp-address
"nntp"))
1181 (force (or (netrc-get alist
"force") nntp-authinfo-force
))
1183 (auth-source-user-or-password '("login" "password") nntp-address
"nntp"))
1184 (auth-user (nth 0 auth-info
))
1185 (auth-passwd (nth 1 auth-info
))
1187 ;; this is preferred to netrc-*
1189 (netrc-get alist
"login")
1190 nntp-authinfo-user
))
1192 ;; this is preferred to netrc-*
1194 (netrc-get alist
"password"))))
1195 (when (or (not send-if-force
)
1198 (setq user
(read-string (format "NNTP (%s) user name: " nntp-address
))
1199 nntp-authinfo-user user
))
1200 (unless (member user
'(nil ""))
1201 (nntp-send-command "^3.*\r?\n" "AUTHINFO USER" user
)
1202 (when t
;???Should check if AUTHINFO succeeded
1204 "^2.*\r?\n" "AUTHINFO PASS"
1206 nntp-authinfo-password
1207 (setq nntp-authinfo-password
1208 (read-passwd (format "NNTP (%s@%s) password: "
1209 user nntp-address
))))))))))
1211 (defun nntp-send-nosy-authinfo ()
1212 "Send the AUTHINFO to the nntp server."
1213 (let ((user (read-string (format "NNTP (%s) user name: " nntp-address
))))
1214 (unless (member user
'(nil ""))
1215 (nntp-send-command "^3.*\r?\n" "AUTHINFO USER" user
)
1216 (when t
;???Should check if AUTHINFO succeeded
1217 (nntp-send-command "^2.*\r?\n" "AUTHINFO PASS"
1218 (read-passwd (format "NNTP (%s@%s) password: "
1219 user nntp-address
)))))))
1221 (defun nntp-send-authinfo-from-file ()
1222 "Send the AUTHINFO to the nntp server.
1224 The authinfo login name is taken from the user's login name and the
1225 password contained in '~/.nntp-authinfo'."
1226 (when (file-exists-p "~/.nntp-authinfo")
1228 (insert-file-contents "~/.nntp-authinfo")
1229 (goto-char (point-min))
1230 (nntp-send-command "^3.*\r?\n" "AUTHINFO USER" (user-login-name))
1232 "^2.*\r?\n" "AUTHINFO PASS"
1233 (buffer-substring (point) (point-at-eol))))))
1235 ;;; Internal functions.
1237 (defun nntp-handle-authinfo (process)
1238 "Take care of an authinfo response from the server."
1239 (let ((last nntp-last-command
))
1240 (funcall nntp-authinfo-function
)
1241 ;; We have to re-send the function that was interrupted by
1242 ;; the authinfo request.
1243 (nntp-erase-buffer nntp-server-buffer
)
1244 (nntp-send-string process last
)))
1246 (defun nntp-make-process-buffer (buffer)
1247 "Create a new, fresh buffer usable for nntp process connections."
1248 (with-current-buffer
1249 (generate-new-buffer
1250 (format " *server %s %s %s*"
1251 nntp-address nntp-port-number
1252 (gnus-buffer-exists-p buffer
)))
1253 (mm-disable-multibyte)
1254 (set (make-local-variable 'after-change-functions
) nil
)
1255 (set (make-local-variable 'nntp-process-wait-for
) nil
)
1256 (set (make-local-variable 'nntp-process-callback
) nil
)
1257 (set (make-local-variable 'nntp-process-to-buffer
) nil
)
1258 (set (make-local-variable 'nntp-process-start-point
) nil
)
1259 (set (make-local-variable 'nntp-process-decode
) nil
)
1262 (defun nntp-open-connection (buffer)
1263 "Open a connection to PORT on ADDRESS delivering output to BUFFER."
1264 (run-hooks 'nntp-prepare-server-hook
)
1265 (let* ((pbuffer (nntp-make-process-buffer buffer
))
1267 (and nntp-connection-timeout
1269 nntp-connection-timeout nil
1271 (nntp-kill-buffer ,pbuffer
)))))
1274 (let ((coding-system-for-read nntp-coding-system-for-read
)
1275 (coding-system-for-write nntp-coding-system-for-write
))
1276 (funcall nntp-open-connection-function pbuffer
))
1279 (message "Quit opening connection to %s" nntp-address
)
1280 (nntp-kill-buffer pbuffer
)
1284 (nnheader-cancel-timer timer
))
1286 (nntp-kill-buffer pbuffer
))
1287 (when (and (buffer-name pbuffer
)
1289 (gnus-set-process-query-on-exit-flag process nil
)
1290 (if (and (nntp-wait-for process
"^2.*\n" buffer nil t
)
1291 (memq (process-status process
) '(open run
)))
1293 (caar (push (list process buffer nil
) nntp-connection-alist
))
1294 (push process nntp-connection-list
)
1295 (with-current-buffer pbuffer
1296 (nntp-read-server-type)
1298 (set-buffer nntp-server-buffer
)
1299 (let ((nnheader-callback-function nil
))
1300 (run-hooks 'nntp-server-opened-hook
)
1301 (nntp-send-authinfo t
))))
1302 (nntp-kill-buffer (process-buffer process
))
1305 (defun nntp-open-network-stream (buffer)
1306 (open-network-stream "nntpd" buffer nntp-address nntp-port-number
))
1308 (autoload 'format-spec
"format-spec")
1309 (autoload 'format-spec-make
"format-spec")
1310 (autoload 'open-tls-stream
"tls")
1312 (defun nntp-open-ssl-stream (buffer)
1313 (let* ((process-connection-type nil
)
1314 (proc (start-process "nntpd" buffer
1316 shell-command-switch
1317 (format-spec nntp-ssl-program
1320 ?p nntp-port-number
)))))
1321 (gnus-set-process-query-on-exit-flag proc nil
)
1322 (with-current-buffer buffer
1323 (let ((nntp-connection-alist (list proc buffer nil
)))
1324 (nntp-wait-for-string "^\r*20[01]"))
1326 (delete-region (point-min) (point))
1329 (defun nntp-open-tls-stream (buffer)
1330 (let ((proc (open-tls-stream "nntpd" buffer nntp-address nntp-port-number
)))
1331 (gnus-set-process-query-on-exit-flag proc nil
)
1332 (with-current-buffer buffer
1333 (let ((nntp-connection-alist (list proc buffer nil
)))
1334 (nntp-wait-for-string "^\r*20[01]"))
1336 (delete-region (point-min) (point))
1339 (defun nntp-read-server-type ()
1340 "Find out what the name of the server we have connected to is."
1341 ;; Wait for the status string to arrive.
1342 (setq nntp-server-type
(buffer-string))
1343 (let ((case-fold-search t
))
1344 ;; Run server-specific commands.
1345 (dolist (entry nntp-server-action-alist
)
1346 (when (string-match (car entry
) nntp-server-type
)
1347 (if (and (listp (cadr entry
))
1348 (not (eq 'lambda
(caadr entry
))))
1350 (funcall (cadr entry
)))))))
1352 (defun nntp-async-wait (process wait-for buffer decode callback
)
1353 (with-current-buffer (process-buffer process
)
1354 (unless nntp-inside-change-function
1356 (setq nntp-process-wait-for wait-for
1357 nntp-process-to-buffer buffer
1358 nntp-process-decode decode
1359 nntp-process-callback callback
1360 nntp-process-start-point
(point-max))
1361 (setq after-change-functions
'(nntp-after-change-function))
1362 (if nntp-async-needs-kluge
1363 (nntp-async-kluge process
))))
1365 (defun nntp-async-kluge (process)
1366 ;; emacs 20.3 bug: process output with encoding 'binary
1367 ;; doesn't trigger after-change-functions.
1368 (unless nntp-async-timer
1369 (setq nntp-async-timer
1370 (run-at-time 1 1 'nntp-async-timer-handler
)))
1371 (add-to-list 'nntp-async-process-list process
))
1373 (defun nntp-async-timer-handler ()
1376 (if (memq (process-status proc
) '(open run
))
1377 (nntp-async-trigger proc
)
1378 (nntp-async-stop proc
)))
1379 nntp-async-process-list
))
1381 (defun nntp-async-stop (proc)
1382 (setq nntp-async-process-list
(delq proc nntp-async-process-list
))
1383 (when (and nntp-async-timer
(not nntp-async-process-list
))
1384 (nnheader-cancel-timer nntp-async-timer
)
1385 (setq nntp-async-timer nil
)))
1387 (defun nntp-after-change-function (beg end len
)
1389 ;; we only care about insertions at eob
1390 (when (and (eq 0 len
) (eq (point-max) end
))
1392 (let ((proc (get-buffer-process (current-buffer))))
1394 (nntp-async-trigger proc
)))))
1395 ;; any throw from after-change-functions will leave it
1396 ;; set to nil. so we reset it here, if necessary.
1398 (setq after-change-functions
'(nntp-after-change-function)))))
1400 (defun nntp-async-trigger (process)
1401 (with-current-buffer (process-buffer process
)
1402 (when nntp-process-callback
1403 ;; do we have an error message?
1404 (goto-char nntp-process-start-point
)
1405 (if (memq (following-char) '(?
4 ?
5))
1406 ;; wants credentials?
1407 (if (looking-at "480")
1408 (nntp-handle-authinfo process
)
1409 ;; report error message.
1410 (nntp-snarf-error-message)
1411 (nntp-do-callback nil
))
1413 ;; got what we expect?
1414 (goto-char (point-max))
1415 (when (re-search-backward
1416 nntp-process-wait-for nntp-process-start-point t
)
1417 (let ((response (match-string 0)))
1418 (with-current-buffer nntp-server-buffer
1419 (setq nntp-process-response response
)))
1420 (nntp-async-stop process
)
1422 (when (gnus-buffer-exists-p nntp-process-to-buffer
)
1423 (let ((buf (current-buffer))
1424 (start nntp-process-start-point
)
1425 (decode nntp-process-decode
))
1426 (with-current-buffer nntp-process-to-buffer
1427 (goto-char (point-max))
1429 (narrow-to-region (point) (point))
1430 (nntp-insert-buffer-substring buf start
)
1432 (nntp-decode-text))))))
1434 (goto-char (point-max))
1436 (buffer-name (get-buffer nntp-process-to-buffer
))))))))
1438 (defun nntp-do-callback (arg)
1439 (let ((callback nntp-process-callback
)
1440 (nntp-inside-change-function t
))
1441 (setq nntp-process-callback nil
)
1442 (funcall callback arg
)))
1444 (defun nntp-snarf-error-message ()
1445 "Save the error message in the current buffer."
1446 (let ((message (buffer-string)))
1447 (while (string-match "[\r\n]+" message
)
1448 (setq message
(replace-match " " t t message
)))
1449 (nnheader-report 'nntp message
)
1452 (defun nntp-accept-process-output (process)
1453 "Wait for output from PROCESS and message some dots."
1454 (with-current-buffer (or (nntp-find-connection-buffer nntp-server-buffer
)
1456 (let ((len (/ (buffer-size) 1024))
1459 (setq nntp-have-messaged t
)
1460 (nnheader-message 7 "nntp read: %dk" len
)))
1462 (nnheader-accept-process-output process
)
1463 ;; accept-process-output may update status of process to indicate
1464 ;; that the server has closed the connection. This MUST be
1465 ;; handled here as the buffer restored by the save-excursion may
1466 ;; be the process's former output buffer (i.e. now killed)
1468 (memq (process-status process
) '(open run
)))
1469 (nntp-report "Server closed connection")))))
1471 (defun nntp-accept-response ()
1472 "Wait for output from the process that outputs to BUFFER."
1473 (nntp-accept-process-output (nntp-find-connection nntp-server-buffer
)))
1475 (defun nntp-possibly-change-group (group server
&optional connectionless
)
1476 (let ((nnheader-callback-function nil
))
1478 (or (nntp-server-opened server
)
1479 (nntp-open-server server nil connectionless
)))
1481 (unless connectionless
1482 (or (nntp-find-connection nntp-server-buffer
)
1483 (nntp-open-connection nntp-server-buffer
))))
1486 (let ((entry (nntp-find-connection-entry nntp-server-buffer
)))
1488 (nntp-report "Server closed connection"))
1489 ((not (equal group
(caddr entry
)))
1490 (with-current-buffer (process-buffer (car entry
))
1492 (nntp-send-command "^[245].*\n" "GROUP" group
)
1493 (setcar (cddr entry
) group
)
1495 (nntp-erase-buffer nntp-server-buffer
)))))))
1497 (defun nntp-decode-text (&optional cr-only
)
1498 "Decode the text in the current buffer."
1499 (goto-char (point-min))
1500 (while (search-forward "\r" nil t
)
1503 ;; Remove trailing ".\n" end-of-transfer marker.
1504 (goto-char (point-max))
1506 (when (looking-at ".\n")
1508 ;; Delete status line.
1509 (goto-char (point-min))
1510 (while (looking-at "[1-5][0-9][0-9] .*\n")
1511 ;; For some unknown reason, there is more than one status line.
1512 (delete-region (point) (progn (forward-line 1) (point))))
1513 ;; Remove "." -> ".." encoding.
1514 (while (search-forward "\n.." nil t
)
1517 (defun nntp-encode-text ()
1518 "Encode the text in the current buffer."
1520 ;; Replace "." at beginning of line with "..".
1521 (goto-char (point-min))
1522 (while (re-search-forward "^\\." nil t
)
1524 (goto-char (point-max))
1525 ;; Insert newline at the end of the buffer.
1528 ;; Insert `.' at end of buffer (end of text mark).
1529 (goto-char (point-max))
1531 (goto-char (point-min))
1535 (insert nntp-end-of-line
))))
1537 (defun nntp-retrieve-headers-with-xover (articles &optional fetch-old
)
1538 (set-buffer nntp-server-buffer
)
1542 ;; This server does not talk NOV.
1543 ((not nntp-server-xover
)
1546 ;; We don't care about gaps.
1547 ((or (not nntp-nov-gap
)
1549 (nntp-send-xover-command
1551 (if (numberp fetch-old
)
1552 (max 1 (- (car articles
) fetch-old
))
1555 (car (last articles
)) 'wait
)
1557 (goto-char (point-min))
1558 (when (looking-at "[1-5][0-9][0-9] .*\n")
1559 (delete-region (point) (progn (forward-line 1) (point))))
1560 (while (search-forward "\r" nil t
)
1561 (replace-match "" t t
))
1562 (goto-char (point-max))
1564 (when (looking-at "\\.")
1565 (delete-region (point) (progn (forward-line 1) (point)))))
1567 ;; We do it the hard way. For each gap, an XOVER command is sent
1568 ;; to the server. We do not wait for a reply from the server, we
1569 ;; just send them off as fast as we can. That means that we have
1570 ;; to count the number of responses we get back to find out when we
1571 ;; have gotten all we asked for.
1572 ((numberp nntp-nov-gap
)
1577 (buf nntp-server-buffer
)
1578 (process-buffer (nntp-find-connection-buffer nntp-server-buffer
))
1580 ;; We have to check `nntp-server-xover'. If it gets set to nil,
1581 ;; that means that the server does not understand XOVER, but we
1582 ;; won't know that until we try.
1583 (while (and nntp-server-xover articles
)
1584 (setq first
(car articles
))
1585 ;; Search forward until we find a gap, or until we run out of
1587 (while (and (cdr articles
)
1588 (< (- (nth 1 articles
) (car articles
)) nntp-nov-gap
))
1589 (setq articles
(cdr articles
)))
1591 (setq in-process-buffer-p
(stringp nntp-server-xover
))
1592 (nntp-send-xover-command first
(setq last
(car articles
)))
1593 (setq articles
(cdr articles
))
1595 (when (and nntp-server-xover in-process-buffer-p
)
1596 ;; Don't count tried request.
1597 (setq count
(1+ count
))
1599 ;; Every 400 requests we have to read the stream in
1600 ;; order to avoid deadlocks.
1601 (when (or (null articles
) ;All requests have been sent.
1602 (= 1 (% count nntp-maximum-request
)))
1604 (nntp-accept-response)
1605 ;; On some Emacs versions the preceding function has a
1606 ;; tendency to change the buffer. Perhaps. It's quite
1607 ;; difficult to reproduce, because it only seems to happen
1608 ;; once in a blue moon.
1609 (set-buffer process-buffer
)
1611 (goto-char (or last-point
(point-min)))
1613 (while (re-search-forward "^\\([0-9][0-9][0-9]\\) .*\n"
1616 (setq status
(match-string 1))
1617 (if (string-match "^[45]" status
)
1618 (setq status
'error
)
1620 (setq last-point
(point))
1621 (or (< received count
)
1622 (if (eq status
'error
)
1624 ;; I haven't started reading the final response
1626 (goto-char (point-max))
1628 (not (looking-at "^\\.\r?\n"))))))
1629 ;; I haven't read the end of the final response
1630 (nntp-accept-response)
1631 (set-buffer process-buffer
))))
1633 ;; Some nntp servers seem to have an extension to the XOVER
1634 ;; extension. On these servers, requesting an article range
1635 ;; preceeding the active range does not return an error as
1636 ;; specified in the RFC. What we instead get is the NOV entry
1637 ;; for the first available article. Obviously, a client can
1638 ;; use that entry to avoid making unnecessary requests. The
1639 ;; only problem is for a client that assumes that the response
1640 ;; will always be within the requested ranage. For such a
1641 ;; client, we can get N copies of the same entry (one for each
1642 ;; XOVER command sent to the server).
1645 (goto-char (point-min))
1646 (when (re-search-forward "^[0-9][0-9][0-9] .*\n\\([0-9]+\\)" nil t
)
1647 (let ((low-limit (string-to-number
1648 (buffer-substring (match-beginning 1)
1650 (while (and articles
(<= (car articles
) low-limit
))
1651 (setq articles
(cdr articles
))))))
1654 (when nntp-server-xover
1655 (when in-process-buffer-p
1657 (goto-char (point-max))
1658 (nntp-insert-buffer-substring process-buffer
)
1659 (set-buffer process-buffer
)
1663 ;; We remove any "." lines and status lines.
1664 (goto-char (point-min))
1665 (while (search-forward "\r" nil t
)
1667 (goto-char (point-min))
1668 (delete-matching-lines "^\\.$\\|^[1-5][0-9][0-9] ")
1673 (defun nntp-send-xover-command (beg end
&optional wait-for-reply
)
1674 "Send the XOVER command to the server."
1675 (let ((range (format "%d-%d" beg end
))
1676 (nntp-inhibit-erase t
))
1677 (if (stringp nntp-server-xover
)
1678 ;; If `nntp-server-xover' is a string, then we just send this
1681 (nntp-send-command-nodelete
1682 "\r?\n\\.\r?\n" nntp-server-xover range
)
1683 ;; We do not wait for the reply.
1684 (nntp-send-command-nodelete nil nntp-server-xover range
))
1685 (let ((commands nntp-xover-commands
))
1686 ;; `nntp-xover-commands' is a list of possible XOVER commands.
1687 ;; We try them all until we get at positive response.
1688 (while (and commands
(eq nntp-server-xover
'try
))
1689 (nntp-send-command-nodelete "\r?\n\\.\r?\n" (car commands
) range
)
1690 (with-current-buffer nntp-server-buffer
1691 (goto-char (point-min))
1692 (and (looking-at "[23]") ; No error message.
1693 ;; We also have to look at the lines. Some buggy
1694 ;; servers give back simple lines with just the
1695 ;; article number. How... helpful.
1698 ;; More text after number, or a dot.
1699 (looking-at "[0-9]+\t...\\|\\.\r?\n"))
1700 (setq nntp-server-xover
(car commands
))))
1701 (setq commands
(cdr commands
)))
1702 ;; If none of the commands worked, we disable XOVER.
1703 (when (eq nntp-server-xover
'try
)
1704 (nntp-erase-buffer nntp-server-buffer
)
1705 (setq nntp-server-xover nil
))
1706 nntp-server-xover
))))
1708 (defun nntp-find-group-and-number (&optional group
)
1711 ;; FIXME: This is REALLY FISHY: set-buffer after save-restriction?!?
1712 (set-buffer nntp-server-buffer
)
1713 (narrow-to-region (goto-char (point-min))
1714 (or (search-forward "\n\n" nil t
) (point-max)))
1715 (goto-char (point-min))
1716 ;; We first find the number by looking at the status line.
1717 (let ((number (and (looking-at "2[0-9][0-9] +\\([0-9]+\\) ")
1719 (buffer-substring (match-beginning 1)
1722 (and number
(zerop number
) (setq number nil
))
1724 ;; Then we find the group name.
1727 ;; If there is only one group in the Newsgroups
1728 ;; header, then it seems quite likely that this
1729 ;; article comes from that group, I'd say.
1730 ((and (setq newsgroups
1731 (mail-fetch-field "newsgroups"))
1732 (not (string-match "," newsgroups
)))
1734 ;; If there is more than one group in the
1735 ;; Newsgroups header, then the Xref header should
1736 ;; be filled out. We hazard a guess that the group
1737 ;; that has this article number in the Xref header
1738 ;; is the one we are looking for. This might very
1739 ;; well be wrong if this article happens to have
1740 ;; the same number in several groups, but that's
1742 ((and (setq xref
(mail-fetch-field "xref"))
1745 (format "\\([^ :]+\\):%d" number
) xref
))
1746 (match-string 1 xref
))
1749 ((and (not nntp-xref-number-is-evil
)
1750 (setq xref
(mail-fetch-field "xref"))
1753 (concat "\\(" (regexp-quote group
) "\\):\\([0-9]+\\)")
1754 "\\([^ :]+\\):\\([0-9]+\\)")
1756 (setq group
(match-string 1 xref
)
1757 number
(string-to-number (match-string 2 xref
))))
1758 ((and (setq newsgroups
1759 (mail-fetch-field "newsgroups"))
1760 (not (string-match "," newsgroups
)))
1761 (setq group newsgroups
))
1763 (t (setq group
""))))
1764 (when (string-match "\r" group
)
1765 (setq group
(substring group
0 (match-beginning 0))))
1766 (cons group number
)))))
1768 (defun nntp-wait-for-string (regexp)
1769 "Wait until string arrives in the buffer."
1770 (let ((buf (current-buffer))
1772 (goto-char (point-min))
1773 (while (and (setq proc
(get-buffer-process buf
))
1774 (memq (process-status proc
) '(open run
))
1775 (not (re-search-forward regexp nil t
)))
1776 (accept-process-output proc
)
1778 (goto-char (point-min)))))
1781 ;; ==========================================================================
1782 ;; Obsolete nntp-open-* connection methods -- drv
1783 ;; ==========================================================================
1785 (defvoo nntp-open-telnet-envuser nil
1786 "*If non-nil, telnet session (client and server both) will support the ENVIRON option and not prompt for login name.")
1788 (defvoo nntp-telnet-shell-prompt
"bash\\|\$ *\r?$\\|> *\r?"
1789 "*Regular expression to match the shell prompt on the remote machine.")
1791 (defvoo nntp-rlogin-program
"rsh"
1792 "*Program used to log in on remote machines.
1793 The default is \"rsh\", but \"ssh\" is a popular alternative.")
1795 (defvoo nntp-rlogin-parameters
'("telnet" "-8" "${NNTPSERVER:=news}" "nntp")
1796 "*Parameters to `nntp-open-rlogin'.
1797 That function may be used as `nntp-open-connection-function'. In that
1798 case, this list will be used as the parameter list given to rsh.")
1800 (defvoo nntp-rlogin-user-name nil
1801 "*User name on remote system when using the rlogin connect method.")
1803 (defvoo nntp-telnet-parameters
1804 '("exec" "telnet" "-8" "${NNTPSERVER:=news}" "nntp")
1805 "*Parameters to `nntp-open-telnet'.
1806 That function may be used as `nntp-open-connection-function'. In that
1807 case, this list will be executed as a command after logging in
1810 (defvoo nntp-telnet-user-name nil
1811 "User name to log in via telnet with.")
1813 (defvoo nntp-telnet-passwd nil
1814 "Password to use to log in via telnet with.")
1816 (defun nntp-service-to-port (svc)
1818 ((integerp svc
) (number-to-string svc
))
1819 ((string-match "\\`[0-9]+\\'" svc
) svc
)
1822 (ignore-errors (insert-file-contents "/etc/services"))
1823 (goto-char (point-min))
1824 (if (re-search-forward (concat "^" (regexp-quote svc
)
1825 "[ \t]+\\([0-9]+\\)/tcp"))
1829 (defun nntp-open-telnet (buffer)
1830 (with-current-buffer buffer
1834 "nntpd" buffer nntp-telnet-command nntp-telnet-switches
))
1835 (case-fold-search t
))
1836 (when (memq (process-status proc
) '(open run
))
1837 (nntp-wait-for-string "^r?telnet")
1838 (process-send-string proc
"set escape \^X\n")
1840 ((and nntp-open-telnet-envuser nntp-telnet-user-name
)
1841 (process-send-string proc
(concat "open " "-l" nntp-telnet-user-name
1842 nntp-address
"\n")))
1844 (process-send-string proc
(concat "open " nntp-address
"\n"))))
1846 ((not nntp-open-telnet-envuser
)
1847 (nntp-wait-for-string "^\r*.?login:")
1848 (process-send-string
1850 (or nntp-telnet-user-name
1851 (setq nntp-telnet-user-name
(read-string "login: ")))
1853 (nntp-wait-for-string "^\r*.?password:")
1854 (process-send-string
1856 (or nntp-telnet-passwd
1857 (setq nntp-telnet-passwd
1858 (read-passwd "Password: ")))
1860 (nntp-wait-for-string nntp-telnet-shell-prompt
)
1861 (process-send-string
1862 proc
(concat (mapconcat 'identity nntp-telnet-parameters
" ") "\n"))
1863 (nntp-wait-for-string "^\r*20[01]")
1865 (delete-region (point-min) (point))
1866 (process-send-string proc
"\^]")
1867 (nntp-wait-for-string "^r?telnet")
1868 (process-send-string proc
"mode character\n")
1869 (accept-process-output proc
1)
1871 (goto-char (point-min))
1873 (delete-region (point) (point-max)))
1876 (defun nntp-open-rlogin (buffer)
1877 "Open a connection to SERVER using rsh."
1878 (let ((proc (if nntp-rlogin-user-name
1879 (apply 'start-process
1880 "nntpd" buffer nntp-rlogin-program
1881 nntp-address
"-l" nntp-rlogin-user-name
1882 nntp-rlogin-parameters
)
1883 (apply 'start-process
1884 "nntpd" buffer nntp-rlogin-program nntp-address
1885 nntp-rlogin-parameters
))))
1886 (with-current-buffer buffer
1887 (nntp-wait-for-string "^\r*20[01]")
1889 (delete-region (point-min) (point))
1893 ;; ==========================================================================
1894 ;; Replacements for the nntp-open-* functions -- drv
1895 ;; ==========================================================================
1897 (defun nntp-open-telnet-stream (buffer)
1898 "Open a nntp connection by telnet'ing the news server.
1899 `nntp-open-netcat-stream' is recommended in place of this function
1900 because it is more reliable.
1902 Please refer to the following variables to customize the connection:
1903 - `nntp-pre-command',
1904 - `nntp-telnet-command',
1905 - `nntp-telnet-switches',
1907 - `nntp-port-number',
1908 - `nntp-end-of-line'."
1909 (let ((command `(,nntp-telnet-command
1910 ,@nntp-telnet-switches
1912 ,(nntp-service-to-port nntp-port-number
)))
1914 (and nntp-pre-command
1915 (push nntp-pre-command command
))
1916 (setq proc
(apply 'start-process
"nntpd" buffer command
))
1917 (with-current-buffer buffer
1918 (nntp-wait-for-string "^\r*20[01]")
1920 (delete-region (point-min) (point))
1923 (defun nntp-open-via-rlogin-and-telnet (buffer)
1924 "Open a connection to an nntp server through an intermediate host.
1925 First rlogin to the remote host, and then telnet the real news server
1927 `nntp-open-via-rlogin-and-netcat' is recommended in place of this function
1928 because it is more reliable.
1930 Please refer to the following variables to customize the connection:
1931 - `nntp-pre-command',
1932 - `nntp-via-rlogin-command',
1933 - `nntp-via-rlogin-command-switches',
1934 - `nntp-via-user-name',
1935 - `nntp-via-address',
1936 - `nntp-telnet-command',
1937 - `nntp-telnet-switches',
1939 - `nntp-port-number',
1940 - `nntp-end-of-line'."
1941 (let ((command `(,nntp-via-address
1942 ,nntp-telnet-command
1943 ,@nntp-telnet-switches
))
1945 (when nntp-via-user-name
1946 (setq command
`("-l" ,nntp-via-user-name
,@command
)))
1947 (when nntp-via-rlogin-command-switches
1948 (setq command
(append nntp-via-rlogin-command-switches command
)))
1949 (push nntp-via-rlogin-command command
)
1950 (and nntp-pre-command
1951 (push nntp-pre-command command
))
1952 (setq proc
(apply 'start-process
"nntpd" buffer command
))
1953 (with-current-buffer buffer
1954 (nntp-wait-for-string "^r?telnet")
1955 (process-send-string proc
(concat "open " nntp-address
" "
1956 (nntp-service-to-port nntp-port-number
)
1958 (nntp-wait-for-string "^\r*20[01]")
1960 (delete-region (point-min) (point))
1961 (process-send-string proc
"\^]")
1962 (nntp-wait-for-string "^r?telnet")
1963 (process-send-string proc
"mode character\n")
1964 (accept-process-output proc
1)
1966 (goto-char (point-min))
1968 (delete-region (point) (point-max)))
1971 (defun nntp-open-via-rlogin-and-netcat (buffer)
1972 "Open a connection to an nntp server through an intermediate host.
1973 First rlogin to the remote host, and then connect to the real news
1974 server from there using the netcat command.
1976 Please refer to the following variables to customize the connection:
1977 - `nntp-pre-command',
1978 - `nntp-via-rlogin-command',
1979 - `nntp-via-rlogin-command-switches',
1980 - `nntp-via-user-name',
1981 - `nntp-via-address',
1982 - `nntp-netcat-command',
1983 - `nntp-netcat-switches',
1985 - `nntp-port-number'."
1986 (let ((command `(,@(when nntp-pre-command
1987 (list nntp-pre-command
))
1988 ,nntp-via-rlogin-command
1989 ,@nntp-via-rlogin-command-switches
1990 ,@(when nntp-via-user-name
1991 (list "-l" nntp-via-user-name
))
1993 ,nntp-netcat-command
1994 ,@nntp-netcat-switches
1996 ,(nntp-service-to-port nntp-port-number
))))
1997 ;; A non-nil connection type results in mightily odd behavior where
1998 ;; (process-send-string proc "\^M") ends up sending a "\n" to the
1999 ;; ssh process. --Stef
2000 ;; Also a nil connection allow ssh-askpass to work under X11.
2001 (let ((process-connection-type nil
))
2002 (apply 'start-process
"nntpd" buffer command
))))
2004 (defun nntp-open-netcat-stream (buffer)
2005 "Open a connection to an nntp server through netcat.
2006 I.e. use the `nc' command rather than Emacs's builtin networking code.
2008 Please refer to the following variables to customize the connection:
2009 - `nntp-pre-command',
2010 - `nntp-netcat-command',
2011 - `nntp-netcat-switches',
2013 - `nntp-port-number'."
2014 (let ((command `(,nntp-netcat-command
2015 ,@nntp-netcat-switches
2017 ,(nntp-service-to-port nntp-port-number
))))
2018 (and nntp-pre-command
(push nntp-pre-command command
))
2019 (let ((process-connection-type nil
)) ;See `nntp-open-via-rlogin-and-netcat'.
2020 (apply 'start-process
"nntpd" buffer command
))))
2023 (defun nntp-open-via-telnet-and-telnet (buffer)
2024 "Open a connection to an nntp server through an intermediate host.
2025 First telnet the remote host, and then telnet the real news server
2028 Please refer to the following variables to customize the connection:
2029 - `nntp-pre-command',
2030 - `nntp-via-telnet-command',
2031 - `nntp-via-telnet-switches',
2032 - `nntp-via-address',
2033 - `nntp-via-envuser',
2034 - `nntp-via-user-name',
2035 - `nntp-via-user-password',
2036 - `nntp-via-shell-prompt',
2037 - `nntp-telnet-command',
2038 - `nntp-telnet-switches',
2040 - `nntp-port-number',
2041 - `nntp-end-of-line'."
2042 (with-current-buffer buffer
2044 (let ((command `(,nntp-via-telnet-command
,@nntp-via-telnet-switches
))
2045 (case-fold-search t
)
2047 (and nntp-pre-command
(push nntp-pre-command command
))
2048 (setq proc
(apply 'start-process
"nntpd" buffer command
))
2049 (when (memq (process-status proc
) '(open run
))
2050 (nntp-wait-for-string "^r?telnet")
2051 (process-send-string proc
"set escape \^X\n")
2053 ((and nntp-via-envuser nntp-via-user-name
)
2054 (process-send-string proc
(concat "open " "-l" nntp-via-user-name
2055 nntp-via-address
"\n")))
2057 (process-send-string proc
(concat "open " nntp-via-address
2059 (when (not nntp-via-envuser
)
2060 (nntp-wait-for-string "^\r*.?login:")
2061 (process-send-string proc
2063 (or nntp-via-user-name
2064 (setq nntp-via-user-name
2065 (read-string "login: ")))
2067 (nntp-wait-for-string "^\r*.?password:")
2068 (process-send-string proc
2070 (or nntp-via-user-password
2071 (setq nntp-via-user-password
2072 (read-passwd "Password: ")))
2074 (nntp-wait-for-string nntp-via-shell-prompt
)
2075 (let ((real-telnet-command `("exec"
2076 ,nntp-telnet-command
2077 ,@nntp-telnet-switches
2079 ,(nntp-service-to-port nntp-port-number
))))
2080 (process-send-string proc
2081 (concat (mapconcat 'identity
2082 real-telnet-command
" ")
2084 (nntp-wait-for-string "^\r*20[01]")
2086 (delete-region (point-min) (point))
2087 (process-send-string proc
"\^]")
2088 (nntp-wait-for-string "^r?telnet")
2089 (process-send-string proc
"mode character\n")
2090 (accept-process-output proc
1)
2092 (goto-char (point-min))
2094 (delete-region (point) (point-max)))
2099 (defun nntp-marks-directory (server)
2100 (expand-file-name server nntp-marks-directory
))
2102 (defvar nntp-server-to-method-cache nil
2103 "Alist of servers and select methods.")
2105 (defun nntp-group-pathname (server group
&optional file
)
2106 "Return an absolute file name of FILE for GROUP on SERVER."
2107 (let ((method (cdr (assoc server nntp-server-to-method-cache
))))
2109 (push (cons server
(setq method
(or (gnus-server-to-method server
)
2110 (gnus-find-method-for-group group
))))
2111 nntp-server-to-method-cache
))
2112 (nnmail-group-pathname
2113 (mm-decode-coding-string group
2114 (inline (gnus-group-name-charset method group
)))
2115 (nntp-marks-directory server
)
2118 (defun nntp-possibly-create-directory (group server
)
2119 (let ((dir (nntp-group-pathname server group
))
2120 (file-name-coding-system nnmail-pathname-coding-system
))
2121 (unless (file-exists-p dir
)
2122 (make-directory (directory-file-name dir
) t
)
2123 (nnheader-message 5 "Creating nntp marks directory %s" dir
))))
2125 (autoload 'time-less-p
"time-date")
2127 (defun nntp-marks-changed-p (group server
)
2128 (let ((file (nntp-group-pathname server group nntp-marks-file-name
))
2129 (file-name-coding-system nnmail-pathname-coding-system
))
2130 (if (null (gnus-gethash file nntp-marks-modtime
))
2131 t
;; never looked at marks file, assume it has changed
2132 (time-less-p (gnus-gethash file nntp-marks-modtime
)
2133 (nth 5 (file-attributes file
))))))
2135 (defun nntp-save-marks (group server
)
2136 (let ((file-name-coding-system nnmail-pathname-coding-system
)
2137 (file (nntp-group-pathname server group nntp-marks-file-name
)))
2140 (nntp-possibly-create-directory group server
)
2141 (with-temp-file file
2143 (gnus-prin1 nntp-marks
)
2146 (nth 5 (file-attributes file
))
2147 nntp-marks-modtime
))
2148 (error (or (gnus-yes-or-no-p
2149 (format "Could not write to %s (%s). Continue? " file err
))
2150 (error "Cannot write to %s (%s)" file err
))))))
2152 (defun nntp-open-marks (group server
)
2153 (let ((file (nntp-group-pathname server group nntp-marks-file-name
))
2154 (file-name-coding-system nnmail-pathname-coding-system
))
2155 (if (file-exists-p file
)
2158 (gnus-sethash file
(nth 5 (file-attributes file
))
2160 (nnheader-insert-file-contents file
)
2161 (setq nntp-marks
(read (current-buffer)))
2162 (dolist (el gnus-article-unpropagated-mark-lists
)
2163 (setq nntp-marks
(gnus-remassoc el nntp-marks
))))
2164 (error (or (gnus-yes-or-no-p
2165 (format "Error reading nntp marks file %s (%s). Continuing will use marks from .newsrc.eld. Continue? " file err
))
2166 (error "Cannot read nntp marks file %s (%s)" file err
))))
2167 ;; User didn't have a .marks file. Probably first time
2168 ;; user of the .marks stuff. Bootstrap it from .newsrc.eld.
2169 (let ((info (gnus-get-info
2170 (gnus-group-prefixed-name
2172 (gnus-server-to-method (format "nntp:%s" server
)))))
2173 (decoded-name (mm-decode-coding-string
2175 (gnus-group-name-charset
2176 (gnus-server-to-method server
) group
))))
2177 (nnheader-message 7 "Bootstrapping marks for %s..." decoded-name
)
2178 (setq nntp-marks
(gnus-info-marks info
))
2179 (push (cons 'read
(gnus-info-read info
)) nntp-marks
)
2180 (dolist (el gnus-article-unpropagated-mark-lists
)
2181 (setq nntp-marks
(gnus-remassoc el nntp-marks
)))
2182 (nntp-save-marks group server
)
2183 (nnheader-message 7 "Bootstrapping marks for %s...done"
2188 ;; arch-tag: 8655466a-b1b5-4929-9c45-7b1b2e767271
2189 ;;; nntp.el ends here