Commit | Line | Data |
---|---|---|
16409b0b | 1 | ;;; nntp.el --- nntp access for Gnus |
f9936da6 | 2 | |
e84b4b86 TTN |
3 | ;; Copyright (C) 1987, 1988, 1989, 1990, 1992, 1993, |
4 | ;; 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, | |
114f9c96 | 5 | ;; 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
eec82323 | 6 | |
6748645f | 7 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
eec82323 LMI |
8 | ;; Keywords: news |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
5e809f55 GM |
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. | |
eec82323 | 16 | |
5e809f55 GM |
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. | |
eec82323 LMI |
21 | |
22 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
eec82323 LMI |
24 | |
25 | ;;; Commentary: | |
26 | ||
27 | ;;; Code: | |
28 | ||
29 | (require 'nnheader) | |
30 | (require 'nnoo) | |
31 | (require 'gnus-util) | |
01c52d31 MB |
32 | (require 'gnus) |
33 | (require 'gnus-group) ;; gnus-group-name-charset | |
eec82323 LMI |
34 | |
35 | (nnoo-declare nntp) | |
36 | ||
16409b0b | 37 | (eval-when-compile (require 'cl)) |
eec82323 | 38 | |
8abf1b22 | 39 | (autoload 'auth-source-user-or-password "auth-source") |
e952b711 | 40 | |
e79f14a4 RS |
41 | (defgroup nntp nil |
42 | "NNTP access for Gnus." | |
43 | :group 'gnus) | |
44 | ||
eec82323 LMI |
45 | (defvoo nntp-address nil |
46 | "Address of the physical nntp server.") | |
47 | ||
48 | (defvoo nntp-port-number "nntp" | |
49 | "Port number on the physical nntp server.") | |
50 | ||
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 | |
6748645f | 54 | server spawn an nnrpd server.") |
eec82323 LMI |
55 | |
56 | (defvoo nntp-authinfo-function 'nntp-send-authinfo | |
6748645f LMI |
57 | "Function used to send AUTHINFO to the server. |
58 | It is called with no parameters.") | |
eec82323 LMI |
59 | |
60 | (defvoo nntp-server-action-alist | |
16409b0b GM |
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))) | |
eec82323 LMI |
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: | |
68 | ||
69 | \(setq nntp-server-action-alist | |
70 | '((\"innd\" (ding)))) | |
71 | ||
72 | You probably don't want to do that, though.") | |
73 | ||
74 | (defvoo nntp-open-connection-function 'nntp-open-network-stream | |
75 | "*Function used for connecting to a remote system. | |
23f87bed | 76 | It will be called with the buffer to output in as argument. |
eec82323 | 77 | |
23f87bed MB |
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 | |
81 | host. | |
eec82323 | 82 | |
23f87bed MB |
83 | Direct connections: |
84 | - `nntp-open-network-stream' (the default), | |
85 | - `nntp-open-ssl-stream', | |
86 | - `nntp-open-tls-stream', | |
990e2c2f | 87 | - `nntp-open-netcat-stream'. |
23f87bed | 88 | - `nntp-open-telnet-stream'. |
6748645f | 89 | |
23f87bed | 90 | Indirect connections: |
01c52d31 | 91 | - `nntp-open-via-rlogin-and-netcat', |
990e2c2f | 92 | - `nntp-open-via-rlogin-and-telnet', |
23f87bed | 93 | - `nntp-open-via-telnet-and-telnet'.") |
eec82323 | 94 | |
45cb30ee MB |
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.") | |
102 | ||
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.") | |
109 | ||
23f87bed MB |
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.") | |
eec82323 | 113 | |
23f87bed MB |
114 | (defvoo nntp-telnet-command "telnet" |
115 | "*Telnet command used to connect to the nntp server. | |
01c52d31 MB |
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'.") | |
eec82323 | 118 | |
23f87bed MB |
119 | (defvoo nntp-telnet-switches '("-8") |
120 | "*Switches given to the telnet command `nntp-telnet-command'.") | |
eec82323 | 121 | |
23f87bed MB |
122 | (defvoo nntp-end-of-line "\r\n" |
123 | "*String to use on the end of lines when talking to the NNTP server. | |
01c52d31 MB |
124 | This is \"\\r\\n\" by default, but should be \"\\n\" when using an indirect |
125 | connection method (nntp-open-via-*).") | |
eec82323 | 126 | |
23f87bed MB |
127 | (defvoo nntp-via-rlogin-command "rsh" |
128 | "*Rlogin command used to connect to an intermediate host. | |
01c52d31 MB |
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.") | |
6748645f | 132 | |
23f87bed MB |
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.") | |
6748645f | 139 | |
23f87bed MB |
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.") | |
a8151ef7 | 143 | |
23f87bed MB |
144 | (defvoo nntp-via-telnet-switches '("-8") |
145 | "*Switches given to the telnet command `nntp-via-telnet-command'.") | |
a8151ef7 | 146 | |
990e2c2f | 147 | (defvoo nntp-netcat-command "nc" |
01c52d31 | 148 | "*Netcat command used to connect to the nntp server. |
990e2c2f SM |
149 | This command is used by the `nntp-open-netcat-stream' and |
150 | `nntp-open-via-rlogin-and-netcat' methods.") | |
01c52d31 | 151 | |
990e2c2f SM |
152 | (defvoo nntp-netcat-switches nil |
153 | "*Switches given to the netcat command `nntp-netcat-command'.") | |
01c52d31 | 154 | |
23f87bed MB |
155 | (defvoo nntp-via-user-name nil |
156 | "*User name to log in on an intermediate host with. | |
01c52d31 | 157 | This variable is used by the various nntp-open-via-* methods.") |
23f87bed MB |
158 | |
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.") | |
162 | ||
163 | (defvoo nntp-via-address nil | |
164 | "*Address of an intermediate host to connect to. | |
01c52d31 | 165 | This variable is used by the various nntp-open-via-* methods.") |
23f87bed MB |
166 | |
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.") | |
170 | ||
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.") | |
eec82323 LMI |
174 | |
175 | (defvoo nntp-large-newsgroup 50 | |
23f87bed MB |
176 | "*The number of articles which indicates a large newsgroup. |
177 | If the number of articles is greater than the value, verbose | |
eec82323 LMI |
178 | messages will be shown to indicate the current status.") |
179 | ||
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 | |
183 | lower value.") | |
184 | ||
185 | (defvoo nntp-nov-is-evil nil | |
186 | "*If non-nil, nntp will never attempt to use XOVER when talking to the server.") | |
187 | ||
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 | |
192 | by one.") | |
193 | ||
a8151ef7 | 194 | (defvoo nntp-nov-gap 5 |
eec82323 LMI |
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.") | |
198 | ||
37cc095b MB |
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.") | |
206 | ||
eec82323 LMI |
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 | |
6748645f LMI |
213 | server there that you can connect to. See also |
214 | `nntp-open-connection-function'") | |
eec82323 | 215 | |
6748645f LMI |
216 | (defvoo nntp-coding-system-for-read 'binary |
217 | "*Coding system to read from NNTP.") | |
218 | ||
219 | (defvoo nntp-coding-system-for-write 'binary | |
220 | "*Coding system to write to NNTP.") | |
221 | ||
01c52d31 MB |
222 | ;; Marks |
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.") | |
226 | ||
227 | (defvoo nntp-marks-file-name ".marks") | |
228 | (defvoo nntp-marks nil) | |
229 | (defvar nntp-marks-modtime (gnus-make-hashtable)) | |
230 | ||
231 | (defcustom nntp-marks-directory | |
232 | (nnheader-concat gnus-directory "marks/") | |
233 | "*The directory where marks for nntp groups will be stored." | |
234 | :group 'nntp | |
235 | :type 'directory) | |
236 | ||
6748645f LMI |
237 | (defcustom nntp-authinfo-file "~/.authinfo" |
238 | ".netrc-like file that holds nntp authinfo passwords." | |
e79f14a4 | 239 | :group 'nntp |
6748645f LMI |
240 | :type |
241 | '(choice file | |
242 | (repeat :tag "Entries" | |
243 | :menu-tag "Inline" | |
244 | (list :format "%v" | |
245 | :value ("" ("login" . "") ("password" . "")) | |
246 | (string :tag "Host") | |
247 | (checklist :inline t | |
248 | (cons :format "%v" | |
249 | (const :format "" "login") | |
250 | (string :format "Login: %v")) | |
251 | (cons :format "%v" | |
252 | (const :format "" "password") | |
23f87bed | 253 | (string :format "Password: %v"))))))) |
6748645f | 254 | |
eec82323 LMI |
255 | \f |
256 | ||
6748645f LMI |
257 | (defvoo nntp-connection-timeout nil |
258 | "*Number of seconds to wait before an nntp connection times out. | |
2eebe218 DL |
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.") | |
6748645f | 261 | |
23f87bed MB |
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.") | |
265 | ||
eec82323 LMI |
266 | ;;; Internal variables. |
267 | ||
6748645f LMI |
268 | (defvar nntp-record-commands nil |
269 | "*If non-nil, nntp will record all commands in the \"*nntp-log*\" buffer.") | |
270 | ||
eec82323 LMI |
271 | (defvar nntp-have-messaged nil) |
272 | ||
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) | |
6748645f LMI |
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) | |
01c52d31 | 283 | (defvoo nntp-authinfo-force nil) |
eec82323 LMI |
284 | |
285 | (defvar nntp-connection-list nil) | |
286 | ||
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) | |
293 | ||
294 | (defvoo nntp-server-xover 'try) | |
295 | (defvoo nntp-server-list-active-group 'try) | |
296 | ||
16409b0b GM |
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.") | |
303 | ||
304 | (defvar nntp-async-timer nil) | |
305 | (defvar nntp-async-process-list nil) | |
306 | ||
e84b4b86 | 307 | (defvar nntp-ssl-program |
f9936da6 SZ |
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.") | |
313 | ||
58090a8d MB |
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") | |
320 | ||
eec82323 LMI |
321 | \f |
322 | ||
323 | ;;; Internal functions. | |
324 | ||
325 | (defsubst nntp-send-string (process string) | |
326 | "Send STRING to PROCESS." | |
6748645f LMI |
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)) | |
23f87bed MB |
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"))) | |
eec82323 | 337 | |
6748645f LMI |
338 | (defun nntp-record-command (string) |
339 | "Record the command STRING." | |
ed075cb4 | 340 | (with-current-buffer (get-buffer-create "*nntp-log*") |
6748645f LMI |
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")))) | |
346 | ||
23f87bed MB |
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." | |
351 | ||
352 | (when nntp-record-commands | |
353 | (nntp-record-command "*** CALLED nntp-report ***")) | |
354 | ||
355 | (nnheader-report 'nntp args) | |
356 | ||
357 | (apply 'error args)) | |
358 | ||
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." | |
362 | ||
363 | (when nntp-record-commands | |
364 | (nntp-record-command "*** CONNECTION LOST ***")) | |
365 | ||
366 | (throw 'nntp-with-open-group-error t)) | |
367 | ||
1428d46b MB |
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 | |
375 | ,(if (or start end) | |
376 | `(buffer-substring (or ,start (point-min)) | |
377 | (or ,end (point-max))) | |
378 | '(buffer-string))))) | |
379 | (insert-buffer-substring ,buffer ,start ,end)))) | |
380 | ||
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 | |
387 | (erase-buffer) | |
388 | (insert (if enable-multibyte-characters | |
389 | (mm-string-to-multibyte string) | |
390 | string)) | |
391 | (goto-char (point-min)) | |
392 | nil)))) | |
393 | ||
eec82323 LMI |
394 | (defsubst nntp-wait-for (process wait-for buffer &optional decode discard) |
395 | "Wait for WAIT-FOR to arrive from PROCESS." | |
01c52d31 | 396 | |
ed075cb4 | 397 | (with-current-buffer (process-buffer process) |
eec82323 | 398 | (goto-char (point-min)) |
01c52d31 | 399 | |
6748645f | 400 | (while (and (or (not (memq (char-after (point)) '(?2 ?3 ?4 ?5))) |
58090a8d | 401 | (looking-at "48[02]")) |
6748645f | 402 | (memq (process-status process) '(open run))) |
58090a8d | 403 | (cond ((looking-at "480") |
01c52d31 | 404 | (nntp-handle-authinfo process)) |
58090a8d MB |
405 | ((looking-at "482") |
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))))) | |
eec82323 LMI |
410 | (nntp-accept-process-output process) |
411 | (goto-char (point-min))) | |
412 | (prog1 | |
6748645f LMI |
413 | (cond |
414 | ((looking-at "[45]") | |
415 | (progn | |
416 | (nntp-snarf-error-message) | |
417 | nil)) | |
418 | ((not (memq (process-status process) '(open run))) | |
23f87bed | 419 | (nntp-report "Server closed connection")) |
6748645f | 420 | (t |
eec82323 | 421 | (goto-char (point-max)) |
23f87bed MB |
422 | (let ((limit (point-min)) |
423 | response) | |
eec82323 | 424 | (while (not (re-search-backward wait-for limit t)) |
6748645f | 425 | (nntp-accept-process-output process) |
eec82323 LMI |
426 | ;; We assume that whatever we wait for is less than 1000 |
427 | ;; characters long. | |
428 | (setq limit (max (- (point-max) 1000) (point-min))) | |
23f87bed MB |
429 | (goto-char (point-max))) |
430 | (setq response (match-string 0)) | |
431 | (with-current-buffer nntp-server-buffer | |
432 | (setq nntp-process-response response))) | |
eec82323 LMI |
433 | (nntp-decode-text (not decode)) |
434 | (unless discard | |
ed075cb4 | 435 | (with-current-buffer buffer |
23f87bed | 436 | (goto-char (point-max)) |
1428d46b | 437 | (nntp-insert-buffer-substring (process-buffer process)) |
eec82323 LMI |
438 | ;; Nix out "nntp reading...." message. |
439 | (when nntp-have-messaged | |
440 | (setq nntp-have-messaged nil) | |
23f87bed MB |
441 | (nnheader-message 5 "")))) |
442 | t)) | |
eec82323 LMI |
443 | (unless discard |
444 | (erase-buffer))))) | |
445 | ||
16409b0b GM |
446 | (defun nntp-kill-buffer (buffer) |
447 | (when (buffer-name buffer) | |
448 | (kill-buffer buffer) | |
449 | (nnheader-init-server-buffer))) | |
450 | ||
01c52d31 MB |
451 | (defun nntp-erase-buffer (buffer) |
452 | "Erase contents of BUFFER." | |
453 | (with-current-buffer buffer | |
454 | (erase-buffer))) | |
455 | ||
eec82323 LMI |
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)) | |
460 | process entry) | |
23f87bed | 461 | (while (and alist (setq entry (pop alist))) |
eec82323 LMI |
462 | (when (eq buffer (cadr entry)) |
463 | (setq process (car entry) | |
464 | alist nil))) | |
465 | (when process | |
466 | (if (memq (process-status process) '(open run)) | |
467 | process | |
16409b0b | 468 | (nntp-kill-buffer (process-buffer process)) |
eec82323 LMI |
469 | (setq nntp-connection-alist (delq entry nntp-connection-alist)) |
470 | nil)))) | |
471 | ||
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)) | |
475 | ||
476 | (defun nntp-find-connection-buffer (buffer) | |
477 | "Return the process connection buffer tied to BUFFER." | |
478 | (let ((process (nntp-find-connection buffer))) | |
479 | (when process | |
480 | (process-buffer process)))) | |
481 | ||
482 | (defsubst nntp-retrieve-data (command address port buffer | |
6748645f | 483 | &optional wait-for callback decode) |
eec82323 LMI |
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)))) | |
23f87bed MB |
487 | (if process |
488 | (progn | |
489 | (unless (or nntp-inhibit-erase nnheader-callback-function) | |
01c52d31 | 490 | (nntp-erase-buffer (process-buffer process))) |
23f87bed MB |
491 | (condition-case err |
492 | (progn | |
493 | (when command | |
494 | (nntp-send-string process command)) | |
495 | (cond | |
496 | ((eq callback 'ignore) | |
497 | t) | |
498 | ((and callback wait-for) | |
499 | (nntp-async-wait process wait-for buffer decode callback) | |
500 | t) | |
501 | (wait-for | |
502 | (nntp-wait-for process wait-for buffer decode)) | |
503 | (t t))) | |
58090a8d MB |
504 | (nntp-authinfo-rejected |
505 | (signal 'nntp-authinfo-rejected (cdr err))) | |
23f87bed MB |
506 | (error |
507 | (nnheader-report 'nntp "Couldn't open connection to %s: %s" | |
508 | address err)) | |
509 | (quit | |
510 | (message "Quit retrieving data from nntp") | |
511 | (signal 'quit nil) | |
512 | nil))) | |
513 | (nnheader-report 'nntp "Couldn't open connection to %s" address)))) | |
eec82323 LMI |
514 | |
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)) | |
01c52d31 | 519 | (nntp-erase-buffer nntp-server-buffer)) |
23f87bed MB |
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))))) | |
524 | (if process | |
525 | (prog1 | |
526 | (nntp-retrieve-data command | |
527 | nntp-address nntp-port-number | |
528 | nntp-server-buffer | |
529 | wait-for nnheader-callback-function) | |
530 | ;; If nothing to wait for, still remove possibly echo'ed commands. | |
45cb30ee MB |
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. | |
23f87bed | 535 | (unless (or wait-for |
45cb30ee MB |
536 | nntp-never-echoes-commands |
537 | (memq | |
538 | nntp-open-connection-function | |
539 | nntp-open-connection-functions-never-echo-commands)) | |
23f87bed | 540 | (nntp-accept-response) |
ed075cb4 | 541 | (with-current-buffer buffer |
23f87bed MB |
542 | (goto-char pos) |
543 | (if (looking-at (regexp-quote command)) | |
544 | (delete-region pos (progn (forward-line 1) | |
01c52d31 | 545 | (point-at-bol))))))) |
23f87bed MB |
546 | (nnheader-report 'nntp "Couldn't open connection to %s." |
547 | nntp-address)))) | |
eec82323 LMI |
548 | |
549 | (defun nntp-send-command-nodelete (wait-for &rest strings) | |
550 | "Send STRINGS to server and wait until WAIT-FOR returns." | |
23f87bed MB |
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))))) | |
555 | (if process | |
556 | (prog1 | |
557 | (nntp-retrieve-data command | |
558 | nntp-address nntp-port-number | |
559 | nntp-server-buffer | |
560 | wait-for nnheader-callback-function) | |
561 | ;; If nothing to wait for, still remove possibly echo'ed commands | |
562 | (unless wait-for | |
563 | (nntp-accept-response) | |
ed075cb4 | 564 | (with-current-buffer buffer |
23f87bed MB |
565 | (goto-char pos) |
566 | (if (looking-at (regexp-quote command)) | |
567 | (delete-region pos (progn (forward-line 1) | |
01c52d31 | 568 | (point-at-bol))))))) |
23f87bed MB |
569 | (nnheader-report 'nntp "Couldn't open connection to %s." |
570 | nntp-address)))) | |
eec82323 LMI |
571 | |
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)) | |
01c52d31 | 576 | (nntp-erase-buffer nntp-server-buffer)) |
23f87bed MB |
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))))) | |
581 | (if process | |
582 | (prog1 | |
583 | (nntp-retrieve-data command | |
584 | nntp-address nntp-port-number | |
585 | nntp-server-buffer | |
586 | wait-for nnheader-callback-function t) | |
587 | ;; If nothing to wait for, still remove possibly echo'ed commands | |
588 | (unless wait-for | |
589 | (nntp-accept-response) | |
ed075cb4 | 590 | (with-current-buffer buffer |
01c52d31 MB |
591 | (goto-char pos) |
592 | (if (looking-at (regexp-quote command)) | |
593 | (delete-region pos (progn (forward-line 1) (point-at-bol)))) | |
594 | ))) | |
23f87bed MB |
595 | (nnheader-report 'nntp "Couldn't open connection to %s." |
596 | nntp-address)))) | |
597 | ||
eec82323 LMI |
598 | |
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)) | |
01c52d31 MB |
603 | (nntp-erase-buffer |
604 | (nntp-find-connection-buffer nntp-server-buffer))) | |
eec82323 | 605 | (nntp-encode-text) |
ed075cb4 SM |
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)) | |
eec82323 LMI |
612 | (nntp-retrieve-data |
613 | nil nntp-address nntp-port-number nntp-server-buffer | |
614 | wait-for nnheader-callback-function)) | |
615 | ||
616 | \f | |
617 | ||
618 | ;;; Interface functions. | |
619 | ||
620 | (nnoo-define-basics nntp) | |
621 | ||
6748645f LMI |
622 | (defsubst nntp-next-result-arrived-p () |
623 | (cond | |
624 | ;; A result that starts with a 2xx code is terminated by | |
625 | ;; a line with only a "." on it. | |
16409b0b | 626 | ((eq (char-after) ?2) |
6748645f | 627 | (if (re-search-forward "\n\\.\r?\n" nil t) |
01c52d31 MB |
628 | (progn |
629 | ;; Some broken news servers add another dot at the end. | |
630 | ;; Protect against inflooping there. | |
631 | (while (looking-at "^\\.\r?\n") | |
632 | (forward-line 1)) | |
633 | t) | |
6748645f LMI |
634 | nil)) |
635 | ;; A result that starts with a 3xx or 4xx code is terminated | |
636 | ;; by a newline. | |
637 | ((looking-at "[34]") | |
638 | (if (search-forward "\n" nil t) | |
639 | t | |
640 | nil)) | |
641 | ;; No result here. | |
642 | (t | |
643 | nil))) | |
644 | ||
23f87bed MB |
645 | (eval-when-compile |
646 | (defvar nntp-with-open-group-internal nil) | |
647 | (defvar nntp-report-n nil)) | |
648 | ||
ed075cb4 SM |
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) | |
666 | ||
667 | (let ((-timer | |
668 | (and nntp-connection-timeout | |
669 | (run-at-time | |
670 | nntp-connection-timeout nil | |
671 | (lambda () | |
672 | (let* ((-process (nntp-find-connection | |
673 | nntp-server-buffer)) | |
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 | |
684 | ;; connection. | |
685 | (nntp-kill-buffer -buffer)))))))) | |
686 | (unwind-protect | |
687 | (setq nntp-with-open-group-internal | |
688 | (condition-case nil | |
689 | (funcall -bodyfun) | |
690 | (quit | |
691 | (unless debug-on-quit | |
692 | (nntp-close-server)) | |
693 | (signal 'quit nil)))) | |
694 | (when -timer | |
695 | (nnheader-cancel-timer -timer))) | |
696 | nil)) | |
697 | (setf (symbol-function 'nntp-report) nntp-report-n)) | |
698 | nntp-with-open-group-internal)) | |
699 | ||
23f87bed MB |
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 | |
ed075cb4 SM |
704 | connections are not detected until `accept-process-output' has updated |
705 | the `process-status'. Dropped connections are not detected until the | |
23f87bed | 706 | connection timeouts (which may be several minutes) or |
ed075cb4 SM |
707 | `nntp-connection-timeout' has expired. When these occur |
708 | `nntp-with-open-group', opens a new connection then re-issues the NNTP | |
23f87bed | 709 | command whose response triggered the error." |
ed075cb4 | 710 | (declare (indent 2) (debug (form form [&optional symbolp] def-body))) |
23f87bed MB |
711 | (when (and (listp connectionless) |
712 | (not (eq connectionless nil))) | |
713 | (setq forms (cons connectionless forms) | |
714 | connectionless nil)) | |
ed075cb4 | 715 | `(nntp-with-open-group-function ,group ,server ,connectionless (lambda () ,@forms))) |
23f87bed | 716 | |
eec82323 LMI |
717 | (deffoo nntp-retrieve-headers (articles &optional group server fetch-old) |
718 | "Retrieve the headers of ARTICLES." | |
23f87bed MB |
719 | (nntp-with-open-group |
720 | group server | |
ed075cb4 | 721 | (with-current-buffer (nntp-find-connection-buffer nntp-server-buffer) |
23f87bed MB |
722 | (erase-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. | |
727 | 'nov | |
728 | ;; XOVER didn't work, so we do it the hard, slow and inefficient | |
729 | ;; way. | |
730 | (let ((number (length articles)) | |
731 | (articles articles) | |
732 | (count 0) | |
733 | (received 0) | |
734 | (last-point (point-min)) | |
735 | (buf (nntp-find-connection-buffer nntp-server-buffer)) | |
736 | (nntp-inhibit-erase t) | |
737 | article) | |
738 | ;; Send HEAD commands. | |
739 | (while (setq article (pop articles)) | |
740 | (nntp-send-command | |
741 | nil | |
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. | |
746 | article)) | |
747 | (incf count) | |
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) | |
753 | (while (progn | |
754 | (set-buffer buf) | |
755 | (goto-char last-point) | |
756 | ;; Count replies. | |
757 | (while (nntp-next-result-arrived-p) | |
758 | (setq last-point (point)) | |
759 | (incf received)) | |
760 | (< received count)) | |
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")) | |
772 | ||
773 | ;; Now all of replies are received. Fold continuation lines. | |
774 | (nnheader-fold-continuation-lines) | |
775 | ;; Remove all "\r"'s. | |
776 | (nnheader-strip-cr) | |
1428d46b | 777 | (nntp-copy-to-buffer nntp-server-buffer (point-min) (point-max)) |
23f87bed | 778 | 'headers))))) |
eec82323 LMI |
779 | |
780 | (deffoo nntp-retrieve-groups (groups &optional server) | |
781 | "Retrieve group info on GROUPS." | |
23f87bed MB |
782 | (nntp-with-open-group |
783 | nil server | |
784 | (when (nntp-find-connection-buffer nntp-server-buffer) | |
785 | (catch 'done | |
786 | (save-excursion | |
787 | ;; Erase nntp-server-buffer before nntp-inhibit-erase. | |
01c52d31 | 788 | (nntp-erase-buffer nntp-server-buffer) |
23f87bed MB |
789 | (set-buffer (nntp-find-connection-buffer nntp-server-buffer)) |
790 | ;; The first time this is run, this variable is `try'. So we | |
791 | ;; try. | |
792 | (when (eq nntp-server-list-active-group 'try) | |
793 | (nntp-try-list-active (car groups))) | |
794 | (erase-buffer) | |
795 | (let ((count 0) | |
796 | (groups groups) | |
797 | (received 0) | |
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"))) | |
803 | (while groups | |
804 | ;; Timeout may have killed the buffer. | |
805 | (unless (gnus-buffer-live-p buf) | |
806 | (nnheader-report 'nntp "Connection to %s is closed." server) | |
807 | (throw 'done nil)) | |
808 | ;; Send the command to the server. | |
809 | (nntp-send-command nil command (pop groups)) | |
810 | (incf count) | |
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) | |
817 | (progn | |
818 | ;; Search `blue moon' in this file for the | |
819 | ;; reason why set-buffer here. | |
820 | (set-buffer buf) | |
821 | (goto-char last-point) | |
822 | ;; Count replies. | |
823 | (while (re-search-forward "^[0-9]" nil t) | |
824 | (incf received)) | |
825 | (setq last-point (point)) | |
826 | (< received count))) | |
827 | (nntp-accept-response)))) | |
828 | ||
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) | |
832 | (throw 'done nil)) | |
833 | (set-buffer buf) | |
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) | |
838 | (progn | |
839 | (set-buffer buf) | |
840 | (goto-char (point-max)) | |
841 | (if (not nntp-server-list-active-group) | |
842 | (not (re-search-backward "\r?\n" | |
843 | (- (point) 3) t)) | |
844 | (not (re-search-backward "^\\.\r?\n" | |
845 | (- (point) 4) t))))) | |
846 | (nntp-accept-response))) | |
847 | ||
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) | |
851 | (throw 'done nil)) | |
852 | (set-buffer buf) | |
853 | (goto-char (point-min)) | |
854 | (while (search-forward "\r" nil t) | |
855 | (replace-match "" t t)) | |
856 | ||
857 | (if (not nntp-server-list-active-group) | |
858 | (progn | |
1428d46b MB |
859 | (nntp-copy-to-buffer nntp-server-buffer |
860 | (point-min) (point-max)) | |
23f87bed MB |
861 | 'group) |
862 | ;; We have read active entries, so we just delete the | |
863 | ;; superfluous gunk. | |
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)))) | |
1428d46b | 868 | (nntp-copy-to-buffer nntp-server-buffer (point-min) (point-max)) |
23f87bed | 869 | 'active))))))) |
eec82323 LMI |
870 | |
871 | (deffoo nntp-retrieve-articles (articles &optional group server) | |
23f87bed MB |
872 | (nntp-with-open-group |
873 | group server | |
874 | (save-excursion | |
875 | (let ((number (length articles)) | |
876 | (articles articles) | |
877 | (count 0) | |
878 | (received 0) | |
879 | (last-point (point-min)) | |
880 | (buf (nntp-find-connection-buffer nntp-server-buffer)) | |
881 | (nntp-inhibit-erase t) | |
882 | (map (apply 'vector articles)) | |
883 | (point 1) | |
884 | article) | |
885 | (set-buffer buf) | |
886 | (erase-buffer) | |
887 | ;; Send ARTICLE command. | |
888 | (while (setq article (pop articles)) | |
889 | (nntp-send-command | |
890 | nil | |
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. | |
895 | article)) | |
896 | (incf count) | |
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) | |
902 | (while (progn | |
903 | (set-buffer buf) | |
904 | (goto-char last-point) | |
905 | ;; Count replies. | |
906 | (while (nntp-next-result-arrived-p) | |
907 | (aset map received (cons (aref map received) (point))) | |
908 | (setq last-point (point)) | |
909 | (incf received)) | |
910 | (< received count)) | |
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")) | |
922 | ||
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) | |
926 | (erase-buffer) | |
927 | (setq last-point (point-min)) | |
928 | (mapcar | |
929 | (lambda (entry) | |
930 | (narrow-to-region | |
931 | (setq point (goto-char (point-max))) | |
932 | (progn | |
1428d46b | 933 | (nntp-insert-buffer-substring buf last-point (cdr entry)) |
23f87bed MB |
934 | (point-max))) |
935 | (setq last-point (cdr entry)) | |
936 | (nntp-decode-text) | |
937 | (widen) | |
938 | (cons (car entry) point)) | |
939 | map))))) | |
eec82323 | 940 | |
eec82323 LMI |
941 | (defun nntp-try-list-active (group) |
942 | (nntp-list-active-group group) | |
ed075cb4 | 943 | (with-current-buffer nntp-server-buffer |
eec82323 LMI |
944 | (goto-char (point-min)) |
945 | (cond ((or (eobp) | |
946 | (looking-at "5[0-9]+")) | |
947 | (setq nntp-server-list-active-group nil)) | |
948 | (t | |
949 | (setq nntp-server-list-active-group t))))) | |
950 | ||
951 | (deffoo nntp-list-active-group (group &optional server) | |
16409b0b | 952 | "Return the active info on GROUP (which can be a regexp)." |
23f87bed MB |
953 | (nntp-with-open-group |
954 | nil server | |
955 | (nntp-send-command "^\\.*\r?\n" "LIST ACTIVE" group))) | |
16409b0b GM |
956 | |
957 | (deffoo nntp-request-group-articles (group &optional server) | |
958 | "Return the list of existing articles in GROUP." | |
23f87bed MB |
959 | (nntp-with-open-group |
960 | nil server | |
961 | (nntp-send-command "^\\.*\r?\n" "LISTGROUP" group))) | |
eec82323 LMI |
962 | |
963 | (deffoo nntp-request-article (article &optional group server buffer command) | |
23f87bed MB |
964 | (nntp-with-open-group |
965 | group server | |
966 | (when (nntp-send-command-and-decode | |
967 | "\r?\n\\.\r?\n" "ARTICLE" | |
968 | (if (numberp article) (int-to-string article) article)) | |
969 | (if (and buffer | |
970 | (not (equal buffer nntp-server-buffer))) | |
ed075cb4 | 971 | (with-current-buffer nntp-server-buffer |
23f87bed MB |
972 | (copy-to-buffer buffer (point-min) (point-max)) |
973 | (nntp-find-group-and-number group)) | |
974 | (nntp-find-group-and-number group))))) | |
eec82323 LMI |
975 | |
976 | (deffoo nntp-request-head (article &optional group server) | |
23f87bed MB |
977 | (nntp-with-open-group |
978 | group server | |
979 | (when (nntp-send-command | |
980 | "\r?\n\\.\r?\n" "HEAD" | |
981 | (if (numberp article) (int-to-string article) article)) | |
982 | (prog1 | |
983 | (nntp-find-group-and-number group) | |
984 | (nntp-decode-text))))) | |
eec82323 LMI |
985 | |
986 | (deffoo nntp-request-body (article &optional group server) | |
23f87bed MB |
987 | (nntp-with-open-group |
988 | group server | |
989 | (nntp-send-command-and-decode | |
990 | "\r?\n\\.\r?\n" "BODY" | |
991 | (if (numberp article) (int-to-string article) article)))) | |
eec82323 LMI |
992 | |
993 | (deffoo nntp-request-group (group &optional server dont-check) | |
e84b4b86 | 994 | (nntp-with-open-group |
23f87bed MB |
995 | nil server |
996 | (when (nntp-send-command "^[245].*\n" "GROUP" group) | |
997 | (let ((entry (nntp-find-connection-entry nntp-server-buffer))) | |
998 | (setcar (cddr entry) group))))) | |
eec82323 LMI |
999 | |
1000 | (deffoo nntp-close-group (group &optional server) | |
1001 | t) | |
1002 | ||
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) | |
1006 | nntp-server-buffer | |
1007 | (gnus-buffer-live-p nntp-server-buffer) | |
1008 | (nntp-find-connection nntp-server-buffer))) | |
1009 | ||
1010 | (deffoo nntp-open-server (server &optional defs connectionless) | |
1011 | (nnheader-init-server-buffer) | |
1012 | (if (nntp-server-opened server) | |
1013 | t | |
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))))) | |
1023 | ||
1024 | (deffoo nntp-close-server (&optional server) | |
1025 | (nntp-possibly-change-group nil server t) | |
6748645f LMI |
1026 | (let ((process (nntp-find-connection nntp-server-buffer))) |
1027 | (while process | |
eec82323 | 1028 | (when (memq (process-status process) '(open run)) |
6748645f LMI |
1029 | (ignore-errors |
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 | |
1035 | ;; the process. | |
1036 | (sleep-for 1)))) | |
16409b0b | 1037 | (nntp-kill-buffer (process-buffer process)) |
6748645f | 1038 | (setq process (car (pop nntp-connection-alist)))) |
eec82323 LMI |
1039 | (nnoo-close-server 'nntp))) |
1040 | ||
1041 | (deffoo nntp-request-close () | |
1042 | (let (process) | |
1043 | (while (setq process (pop nntp-connection-list)) | |
1044 | (when (memq (process-status process) '(open run)) | |
eec82323 | 1045 | (ignore-errors |
6748645f LMI |
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 | |
1051 | ;; the process. | |
1052 | (sleep-for 1)))) | |
16409b0b | 1053 | (nntp-kill-buffer (process-buffer process))))) |
eec82323 LMI |
1054 | |
1055 | (deffoo nntp-request-list (&optional server) | |
23f87bed MB |
1056 | (nntp-with-open-group |
1057 | nil server | |
1058 | (nntp-send-command-and-decode "\r?\n\\.\r?\n" "LIST"))) | |
eec82323 LMI |
1059 | |
1060 | (deffoo nntp-request-list-newsgroups (&optional server) | |
23f87bed MB |
1061 | (nntp-with-open-group |
1062 | nil server | |
1063 | (nntp-send-command "\r?\n\\.\r?\n" "LIST NEWSGROUPS"))) | |
eec82323 LMI |
1064 | |
1065 | (deffoo nntp-request-newgroups (date &optional server) | |
23f87bed MB |
1066 | (nntp-with-open-group |
1067 | nil server | |
ed075cb4 | 1068 | (with-current-buffer nntp-server-buffer |
23f87bed MB |
1069 | (let* ((time (date-to-time date)) |
1070 | (ls (- (cadr time) (nth 8 (decode-time time))))) | |
1071 | (cond ((< ls 0) | |
1072 | (setcar time (1- (car time))) | |
1073 | (setcar (cdr time) (+ ls 65536))) | |
1074 | ((>= ls 65536) | |
1075 | (setcar time (1+ (car time))) | |
1076 | (setcar (cdr time) (- ls 65536))) | |
1077 | (t | |
1078 | (setcar (cdr time) ls))) | |
1079 | (prog1 | |
1080 | (nntp-send-command | |
1081 | "^\\.\r?\n" "NEWGROUPS" | |
1082 | (format-time-string "%y%m%d %H%M%S" time) | |
1083 | "GMT") | |
1084 | (nntp-decode-text)))))) | |
eec82323 LMI |
1085 | |
1086 | (deffoo nntp-request-post (&optional server) | |
23f87bed MB |
1087 | (nntp-with-open-group |
1088 | nil server | |
1089 | (when (nntp-send-command "^[23].*\r?\n" "POST") | |
1090 | (let ((response (with-current-buffer nntp-server-buffer | |
1091 | nntp-process-response)) | |
1092 | server-id) | |
1093 | (when (and response | |
1094 | (string-match "^[23].*\\(<[^\t\n @<>]+@[^\t\n @<>]+>\\)" | |
1095 | response)) | |
1096 | (setq server-id (match-string 1 response)) | |
1097 | (narrow-to-region (goto-char (point-min)) | |
1098 | (if (search-forward "\n\n" nil t) | |
1099 | (1- (point)) | |
1100 | (point-max))) | |
1101 | (unless (mail-fetch-field "Message-ID") | |
1102 | (goto-char (point-min)) | |
1103 | (insert "Message-ID: " server-id "\n")) | |
1104 | (widen)) | |
1105 | (run-hooks 'nntp-prepare-post-hook) | |
1106 | (nntp-send-buffer "^[23].*\n"))))) | |
eec82323 LMI |
1107 | |
1108 | (deffoo nntp-request-type (group article) | |
1109 | 'news) | |
1110 | ||
1111 | (deffoo nntp-asynchronous-p () | |
1112 | t) | |
1113 | ||
01c52d31 MB |
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 | |
1126 | mark | |
1127 | (funcall (if (eq what 'add) 'gnus-range-add | |
1128 | 'gnus-remove-from-range) | |
1129 | (cdr (assoc mark nntp-marks)) range) | |
1130 | nntp-marks))))) | |
1131 | (nntp-save-marks group server)) | |
1132 | nil) | |
1133 | ||
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 | |
1144 | info | |
1145 | (gnus-update-alist-soft | |
1146 | (cdr pred) | |
1147 | (cdr (assq (cdr pred) nntp-marks)) | |
1148 | (gnus-info-marks info)) | |
1149 | t))) | |
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)) | |
1154 | (null (cdr seen))) | |
1155 | (list (cons (car seen) (car seen))) | |
1156 | seen))) | |
1157 | (nnheader-message 8 "Updating marks for %s...done" group))) | |
1158 | nil) | |
1159 | ||
1160 | ||
1161 | ||
eec82323 LMI |
1162 | ;;; Hooky functions. |
1163 | ||
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 | |
1168 | reading." | |
16409b0b | 1169 | (nntp-send-command "^.*\n" "MODE READER")) |
eec82323 | 1170 | |
6748645f | 1171 | (defun nntp-send-authinfo (&optional send-if-force) |
eec82323 | 1172 | "Send the AUTHINFO to the nntp server. |
6748645f LMI |
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 | |
1175 | and a password. | |
1176 | ||
1177 | If SEND-IF-FORCE, only send authinfo to the server if the | |
1178 | .authinfo file has the FORCE token." | |
01c52d31 MB |
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)) | |
3b36c17e MB |
1182 | (auth-info |
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)) | |
8abf1b22 | 1186 | (user (or |
e952b711 | 1187 | ;; this is preferred to netrc-* |
3b36c17e | 1188 | auth-user |
8abf1b22 | 1189 | (netrc-get alist "login") |
e952b711 MB |
1190 | nntp-authinfo-user)) |
1191 | (passwd (or | |
1192 | ;; this is preferred to netrc-* | |
3b36c17e | 1193 | auth-passwd |
e952b711 | 1194 | (netrc-get alist "password")))) |
6748645f LMI |
1195 | (when (or (not send-if-force) |
1196 | force) | |
1197 | (unless user | |
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 | |
16409b0b GM |
1203 | (nntp-send-command |
1204 | "^2.*\r?\n" "AUTHINFO PASS" | |
1205 | (or passwd | |
1206 | nntp-authinfo-password | |
1207 | (setq nntp-authinfo-password | |
23f87bed MB |
1208 | (read-passwd (format "NNTP (%s@%s) password: " |
1209 | user nntp-address)))))))))) | |
6748645f LMI |
1210 | |
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" | |
23f87bed MB |
1218 | (read-passwd (format "NNTP (%s@%s) password: " |
1219 | user nntp-address))))))) | |
eec82323 LMI |
1220 | |
1221 | (defun nntp-send-authinfo-from-file () | |
1222 | "Send the AUTHINFO to the nntp server. | |
6748645f LMI |
1223 | |
1224 | The authinfo login name is taken from the user's login name and the | |
1225 | password contained in '~/.nntp-authinfo'." | |
eec82323 | 1226 | (when (file-exists-p "~/.nntp-authinfo") |
16409b0b | 1227 | (with-temp-buffer |
eec82323 LMI |
1228 | (insert-file-contents "~/.nntp-authinfo") |
1229 | (goto-char (point-min)) | |
6748645f | 1230 | (nntp-send-command "^3.*\r?\n" "AUTHINFO USER" (user-login-name)) |
eec82323 | 1231 | (nntp-send-command |
6748645f | 1232 | "^2.*\r?\n" "AUTHINFO PASS" |
01c52d31 | 1233 | (buffer-substring (point) (point-at-eol)))))) |
eec82323 LMI |
1234 | |
1235 | ;;; Internal functions. | |
1236 | ||
6748645f LMI |
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. | |
01c52d31 | 1243 | (nntp-erase-buffer nntp-server-buffer) |
6748645f LMI |
1244 | (nntp-send-string process last))) |
1245 | ||
eec82323 LMI |
1246 | (defun nntp-make-process-buffer (buffer) |
1247 | "Create a new, fresh buffer usable for nntp process connections." | |
ed075cb4 SM |
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))) | |
1428d46b | 1253 | (mm-disable-multibyte) |
eec82323 LMI |
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) | |
1260 | (current-buffer))) | |
1261 | ||
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)) | |
6748645f LMI |
1266 | (timer |
1267 | (and nntp-connection-timeout | |
01c52d31 | 1268 | (run-at-time |
6748645f LMI |
1269 | nntp-connection-timeout nil |
1270 | `(lambda () | |
16409b0b | 1271 | (nntp-kill-buffer ,pbuffer))))) |
eec82323 LMI |
1272 | (process |
1273 | (condition-case () | |
ccaab511 | 1274 | (let ((coding-system-for-read nntp-coding-system-for-read) |
23f87bed | 1275 | (coding-system-for-write nntp-coding-system-for-write)) |
fc46309d | 1276 | (funcall nntp-open-connection-function pbuffer)) |
eec82323 | 1277 | (error nil) |
2eebe218 | 1278 | (quit |
01c52d31 | 1279 | (message "Quit opening connection to %s" nntp-address) |
2eebe218 DL |
1280 | (nntp-kill-buffer pbuffer) |
1281 | (signal 'quit nil) | |
1282 | nil)))) | |
6748645f LMI |
1283 | (when timer |
1284 | (nnheader-cancel-timer timer)) | |
23f87bed MB |
1285 | (unless process |
1286 | (nntp-kill-buffer pbuffer)) | |
6748645f LMI |
1287 | (when (and (buffer-name pbuffer) |
1288 | process) | |
4a43ee9b | 1289 | (gnus-set-process-query-on-exit-flag process nil) |
23f87bed MB |
1290 | (if (and (nntp-wait-for process "^2.*\n" buffer nil t) |
1291 | (memq (process-status process) '(open run))) | |
eec82323 LMI |
1292 | (prog1 |
1293 | (caar (push (list process buffer nil) nntp-connection-alist)) | |
1294 | (push process nntp-connection-list) | |
ed075cb4 | 1295 | (with-current-buffer pbuffer |
eec82323 LMI |
1296 | (nntp-read-server-type) |
1297 | (erase-buffer) | |
1298 | (set-buffer nntp-server-buffer) | |
1299 | (let ((nnheader-callback-function nil)) | |
6748645f LMI |
1300 | (run-hooks 'nntp-server-opened-hook) |
1301 | (nntp-send-authinfo t)))) | |
16409b0b | 1302 | (nntp-kill-buffer (process-buffer process)) |
eec82323 LMI |
1303 | nil)))) |
1304 | ||
1305 | (defun nntp-open-network-stream (buffer) | |
1306 | (open-network-stream "nntpd" buffer nntp-address nntp-port-number)) | |
1307 | ||
8abf1b22 GM |
1308 | (autoload 'format-spec "format-spec") |
1309 | (autoload 'format-spec-make "format-spec") | |
1310 | (autoload 'open-tls-stream "tls") | |
23f87bed | 1311 | |
6748645f | 1312 | (defun nntp-open-ssl-stream (buffer) |
f9936da6 | 1313 | (let* ((process-connection-type nil) |
e84b4b86 | 1314 | (proc (start-process "nntpd" buffer |
f9936da6 SZ |
1315 | shell-file-name |
1316 | shell-command-switch | |
e84b4b86 | 1317 | (format-spec nntp-ssl-program |
f9936da6 SZ |
1318 | (format-spec-make |
1319 | ?s nntp-address | |
1320 | ?p nntp-port-number))))) | |
4a43ee9b | 1321 | (gnus-set-process-query-on-exit-flag proc nil) |
ed075cb4 | 1322 | (with-current-buffer buffer |
23f87bed MB |
1323 | (let ((nntp-connection-alist (list proc buffer nil))) |
1324 | (nntp-wait-for-string "^\r*20[01]")) | |
1325 | (beginning-of-line) | |
1326 | (delete-region (point-min) (point)) | |
1327 | proc))) | |
1328 | ||
1329 | (defun nntp-open-tls-stream (buffer) | |
1330 | (let ((proc (open-tls-stream "nntpd" buffer nntp-address nntp-port-number))) | |
4a43ee9b | 1331 | (gnus-set-process-query-on-exit-flag proc nil) |
ed075cb4 | 1332 | (with-current-buffer buffer |
23f87bed MB |
1333 | (let ((nntp-connection-alist (list proc buffer nil))) |
1334 | (nntp-wait-for-string "^\r*20[01]")) | |
6748645f LMI |
1335 | (beginning-of-line) |
1336 | (delete-region (point-min) (point)) | |
1337 | proc))) | |
1338 | ||
eec82323 LMI |
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)) | |
01c52d31 | 1343 | (let ((case-fold-search t)) |
eec82323 | 1344 | ;; Run server-specific commands. |
01c52d31 | 1345 | (dolist (entry nntp-server-action-alist) |
eec82323 LMI |
1346 | (when (string-match (car entry) nntp-server-type) |
1347 | (if (and (listp (cadr entry)) | |
1348 | (not (eq 'lambda (caadr entry)))) | |
1349 | (eval (cadr entry)) | |
1350 | (funcall (cadr entry))))))) | |
1351 | ||
16409b0b | 1352 | (defun nntp-async-wait (process wait-for buffer decode callback) |
ed075cb4 | 1353 | (with-current-buffer (process-buffer process) |
16409b0b GM |
1354 | (unless nntp-inside-change-function |
1355 | (erase-buffer)) | |
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)))) | |
1364 | ||
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 | |
01c52d31 | 1370 | (run-at-time 1 1 'nntp-async-timer-handler))) |
16409b0b GM |
1371 | (add-to-list 'nntp-async-process-list process)) |
1372 | ||
1373 | (defun nntp-async-timer-handler () | |
1374 | (mapcar | |
1375 | (lambda (proc) | |
1376 | (if (memq (process-status proc) '(open run)) | |
1377 | (nntp-async-trigger proc) | |
1378 | (nntp-async-stop proc))) | |
1379 | nntp-async-process-list)) | |
1380 | ||
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))) | |
1386 | ||
1387 | (defun nntp-after-change-function (beg end len) | |
1388 | (unwind-protect | |
1389 | ;; we only care about insertions at eob | |
1390 | (when (and (eq 0 len) (eq (point-max) end)) | |
1391 | (save-match-data | |
1392 | (let ((proc (get-buffer-process (current-buffer)))) | |
1393 | (when proc | |
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. | |
1397 | (when quit-flag | |
1398 | (setq after-change-functions '(nntp-after-change-function))))) | |
1399 | ||
1400 | (defun nntp-async-trigger (process) | |
ed075cb4 | 1401 | (with-current-buffer (process-buffer process) |
16409b0b GM |
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") | |
2eebe218 | 1408 | (nntp-handle-authinfo process) |
16409b0b GM |
1409 | ;; report error message. |
1410 | (nntp-snarf-error-message) | |
1411 | (nntp-do-callback nil)) | |
1412 | ||
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) | |
23f87bed MB |
1417 | (let ((response (match-string 0))) |
1418 | (with-current-buffer nntp-server-buffer | |
1419 | (setq nntp-process-response response))) | |
16409b0b GM |
1420 | (nntp-async-stop process) |
1421 | ;; convert it. | |
6748645f | 1422 | (when (gnus-buffer-exists-p nntp-process-to-buffer) |
16409b0b GM |
1423 | (let ((buf (current-buffer)) |
1424 | (start nntp-process-start-point) | |
1425 | (decode nntp-process-decode)) | |
ed075cb4 | 1426 | (with-current-buffer nntp-process-to-buffer |
eec82323 | 1427 | (goto-char (point-max)) |
16409b0b GM |
1428 | (save-restriction |
1429 | (narrow-to-region (point) (point)) | |
1428d46b | 1430 | (nntp-insert-buffer-substring buf start) |
16409b0b GM |
1431 | (when decode |
1432 | (nntp-decode-text)))))) | |
1433 | ;; report it. | |
1434 | (goto-char (point-max)) | |
1435 | (nntp-do-callback | |
1436 | (buffer-name (get-buffer nntp-process-to-buffer)))))))) | |
1437 | ||
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))) | |
eec82323 LMI |
1443 | |
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) | |
1450 | message)) | |
1451 | ||
23f87bed | 1452 | (defun nntp-accept-process-output (process) |
eec82323 | 1453 | "Wait for output from PROCESS and message some dots." |
01c52d31 MB |
1454 | (with-current-buffer (or (nntp-find-connection-buffer nntp-server-buffer) |
1455 | nntp-server-buffer) | |
c7279817 | 1456 | (let ((len (/ (buffer-size) 1024)) |
eec82323 LMI |
1457 | message-log-max) |
1458 | (unless (< len 10) | |
1459 | (setq nntp-have-messaged t) | |
1460 | (nnheader-message 7 "nntp read: %dk" len))) | |
01c52d31 MB |
1461 | (prog1 |
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) | |
1467 | (or (and process | |
1468 | (memq (process-status process) '(open run))) | |
1469 | (nntp-report "Server closed connection"))))) | |
eec82323 LMI |
1470 | |
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))) | |
1474 | ||
1475 | (defun nntp-possibly-change-group (group server &optional connectionless) | |
1476 | (let ((nnheader-callback-function nil)) | |
1477 | (when server | |
1478 | (or (nntp-server-opened server) | |
1479 | (nntp-open-server server nil connectionless))) | |
1480 | ||
1481 | (unless connectionless | |
1482 | (or (nntp-find-connection nntp-server-buffer) | |
1483 | (nntp-open-connection nntp-server-buffer)))) | |
1484 | ||
1485 | (when group | |
1486 | (let ((entry (nntp-find-connection-entry nntp-server-buffer))) | |
23f87bed MB |
1487 | (cond ((not entry) |
1488 | (nntp-report "Server closed connection")) | |
1489 | ((not (equal group (caddr entry))) | |
ed075cb4 | 1490 | (with-current-buffer (process-buffer (car entry)) |
23f87bed MB |
1491 | (erase-buffer) |
1492 | (nntp-send-command "^[245].*\n" "GROUP" group) | |
1493 | (setcar (cddr entry) group) | |
1494 | (erase-buffer) | |
01c52d31 | 1495 | (nntp-erase-buffer nntp-server-buffer))))))) |
eec82323 LMI |
1496 | |
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) | |
1501 | (delete-char -1)) | |
1502 | (unless cr-only | |
1503 | ;; Remove trailing ".\n" end-of-transfer marker. | |
1504 | (goto-char (point-max)) | |
1505 | (forward-line -1) | |
1506 | (when (looking-at ".\n") | |
1507 | (delete-char 2)) | |
1508 | ;; Delete status line. | |
1509 | (goto-char (point-min)) | |
2eebe218 DL |
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)))) | |
eec82323 LMI |
1513 | ;; Remove "." -> ".." encoding. |
1514 | (while (search-forward "\n.." nil t) | |
1515 | (delete-char -1)))) | |
1516 | ||
1517 | (defun nntp-encode-text () | |
1518 | "Encode the text in the current buffer." | |
1519 | (save-excursion | |
1520 | ;; Replace "." at beginning of line with "..". | |
1521 | (goto-char (point-min)) | |
1522 | (while (re-search-forward "^\\." nil t) | |
1523 | (insert ".")) | |
1524 | (goto-char (point-max)) | |
1525 | ;; Insert newline at the end of the buffer. | |
1526 | (unless (bolp) | |
1527 | (insert "\n")) | |
1528 | ;; Insert `.' at end of buffer (end of text mark). | |
1529 | (goto-char (point-max)) | |
45926d06 RS |
1530 | (insert ".\n") |
1531 | (goto-char (point-min)) | |
1532 | (while (not (eobp)) | |
1533 | (end-of-line) | |
1534 | (delete-char 1) | |
1535 | (insert nntp-end-of-line)))) | |
eec82323 LMI |
1536 | |
1537 | (defun nntp-retrieve-headers-with-xover (articles &optional fetch-old) | |
1538 | (set-buffer nntp-server-buffer) | |
1539 | (erase-buffer) | |
1540 | (cond | |
1541 | ||
1542 | ;; This server does not talk NOV. | |
1543 | ((not nntp-server-xover) | |
1544 | nil) | |
1545 | ||
1546 | ;; We don't care about gaps. | |
1547 | ((or (not nntp-nov-gap) | |
1548 | fetch-old) | |
1549 | (nntp-send-xover-command | |
1550 | (if fetch-old | |
1551 | (if (numberp fetch-old) | |
1552 | (max 1 (- (car articles) fetch-old)) | |
1553 | 1) | |
1554 | (car articles)) | |
1555 | (car (last articles)) 'wait) | |
1556 | ||
1557 | (goto-char (point-min)) | |
16409b0b | 1558 | (when (looking-at "[1-5][0-9][0-9] .*\n") |
eec82323 LMI |
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)) | |
1563 | (forward-line -1) | |
1564 | (when (looking-at "\\.") | |
1565 | (delete-region (point) (progn (forward-line 1) (point))))) | |
1566 | ||
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) | |
1573 | (let ((count 0) | |
1574 | (received 0) | |
16409b0b GM |
1575 | last-point |
1576 | in-process-buffer-p | |
eec82323 | 1577 | (buf nntp-server-buffer) |
16409b0b | 1578 | (process-buffer (nntp-find-connection-buffer nntp-server-buffer)) |
23f87bed | 1579 | first last status) |
eec82323 LMI |
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 | |
1586 | ;; articles. | |
1587 | (while (and (cdr articles) | |
1588 | (< (- (nth 1 articles) (car articles)) nntp-nov-gap)) | |
1589 | (setq articles (cdr articles))) | |
1590 | ||
16409b0b | 1591 | (setq in-process-buffer-p (stringp nntp-server-xover)) |
23f87bed MB |
1592 | (nntp-send-xover-command first (setq last (car articles))) |
1593 | (setq articles (cdr articles)) | |
a1506d29 | 1594 | |
16409b0b GM |
1595 | (when (and nntp-server-xover in-process-buffer-p) |
1596 | ;; Don't count tried request. | |
1597 | (setq count (1+ count)) | |
a1506d29 | 1598 | |
eec82323 LMI |
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. | |
23f87bed | 1602 | (= 1 (% count nntp-maximum-request))) |
16409b0b GM |
1603 | |
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) | |
eec82323 | 1610 | (while (progn |
16409b0b | 1611 | (goto-char (or last-point (point-min))) |
eec82323 | 1612 | ;; Count replies. |
23f87bed MB |
1613 | (while (re-search-forward "^\\([0-9][0-9][0-9]\\) .*\n" |
1614 | nil t) | |
1615 | (incf received) | |
1616 | (setq status (match-string 1)) | |
1617 | (if (string-match "^[45]" status) | |
1618 | (setq status 'error) | |
1619 | (setq status 'ok))) | |
eec82323 | 1620 | (setq last-point (point)) |
23f87bed MB |
1621 | (or (< received count) |
1622 | (if (eq status 'error) | |
1623 | nil | |
1624 | ;; I haven't started reading the final response | |
1625 | (progn | |
1626 | (goto-char (point-max)) | |
1627 | (forward-line -1) | |
1628 | (not (looking-at "^\\.\r?\n")))))) | |
1629 | ;; I haven't read the end of the final response | |
16409b0b | 1630 | (nntp-accept-response) |
23f87bed MB |
1631 | (set-buffer process-buffer)))) |
1632 | ||
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). | |
1643 | ||
1644 | (when (<= count 1) | |
1645 | (goto-char (point-min)) | |
1646 | (when (re-search-forward "^[0-9][0-9][0-9] .*\n\\([0-9]+\\)" nil t) | |
e9bd5782 | 1647 | (let ((low-limit (string-to-number |
e84b4b86 | 1648 | (buffer-substring (match-beginning 1) |
23f87bed MB |
1649 | (match-end 1))))) |
1650 | (while (and articles (<= (car articles) low-limit)) | |
1651 | (setq articles (cdr articles)))))) | |
1652 | (set-buffer buf)) | |
eec82323 LMI |
1653 | |
1654 | (when nntp-server-xover | |
16409b0b | 1655 | (when in-process-buffer-p |
16409b0b GM |
1656 | (set-buffer buf) |
1657 | (goto-char (point-max)) | |
1428d46b | 1658 | (nntp-insert-buffer-substring process-buffer) |
16409b0b GM |
1659 | (set-buffer process-buffer) |
1660 | (erase-buffer) | |
1661 | (set-buffer buf)) | |
eec82323 LMI |
1662 | |
1663 | ;; We remove any "." lines and status lines. | |
1664 | (goto-char (point-min)) | |
1665 | (while (search-forward "\r" nil t) | |
1666 | (delete-char -1)) | |
1667 | (goto-char (point-min)) | |
1668 | (delete-matching-lines "^\\.$\\|^[1-5][0-9][0-9] ") | |
eec82323 LMI |
1669 | t)))) |
1670 | ||
1671 | nntp-server-xover) | |
1672 | ||
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 | |
1679 | ;; command. | |
1680 | (if wait-for-reply | |
1681 | (nntp-send-command-nodelete | |
1682 | "\r?\n\\.\r?\n" nntp-server-xover range) | |
1683 | ;; We do not wait for the reply. | |
16409b0b | 1684 | (nntp-send-command-nodelete nil nntp-server-xover range)) |
eec82323 LMI |
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) | |
ed075cb4 | 1690 | (with-current-buffer nntp-server-buffer |
eec82323 LMI |
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. | |
1696 | (progn | |
1697 | (forward-line 1) | |
5cedca8d MB |
1698 | ;; More text after number, or a dot. |
1699 | (looking-at "[0-9]+\t...\\|\\.\r?\n")) | |
eec82323 LMI |
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) | |
01c52d31 MB |
1704 | (nntp-erase-buffer nntp-server-buffer) |
1705 | (setq nntp-server-xover nil)) | |
23f87bed | 1706 | nntp-server-xover)))) |
eec82323 | 1707 | |
23f87bed MB |
1708 | (defun nntp-find-group-and-number (&optional group) |
1709 | (save-excursion | |
1710 | (save-restriction | |
ed075cb4 | 1711 | ;; FIXME: This is REALLY FISHY: set-buffer after save-restriction?!? |
23f87bed MB |
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]+\\) ") | |
e9bd5782 | 1718 | (string-to-number |
23f87bed MB |
1719 | (buffer-substring (match-beginning 1) |
1720 | (match-end 1))))) | |
1721 | newsgroups xref) | |
1722 | (and number (zerop number) (setq number nil)) | |
1723 | (if number | |
1724 | ;; Then we find the group name. | |
1725 | (setq group | |
1726 | (cond | |
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))) | |
1733 | 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 | |
1741 | ;; life. | |
1742 | ((and (setq xref (mail-fetch-field "xref")) | |
1743 | number | |
1744 | (string-match | |
1745 | (format "\\([^ :]+\\):%d" number) xref)) | |
1746 | (match-string 1 xref)) | |
1747 | (t ""))) | |
1748 | (cond | |
37cc095b MB |
1749 | ((and (not nntp-xref-number-is-evil) |
1750 | (setq xref (mail-fetch-field "xref")) | |
23f87bed MB |
1751 | (string-match |
1752 | (if group | |
1753 | (concat "\\(" (regexp-quote group) "\\):\\([0-9]+\\)") | |
1754 | "\\([^ :]+\\):\\([0-9]+\\)") | |
1755 | xref)) | |
1756 | (setq group (match-string 1 xref) | |
e9bd5782 | 1757 | number (string-to-number (match-string 2 xref)))) |
23f87bed MB |
1758 | ((and (setq newsgroups |
1759 | (mail-fetch-field "newsgroups")) | |
1760 | (not (string-match "," newsgroups))) | |
1761 | (setq group newsgroups)) | |
1762 | (group) | |
1763 | (t (setq group "")))) | |
1764 | (when (string-match "\r" group) | |
1765 | (setq group (substring group 0 (match-beginning 0)))) | |
1766 | (cons group number))))) | |
eec82323 LMI |
1767 | |
1768 | (defun nntp-wait-for-string (regexp) | |
1769 | "Wait until string arrives in the buffer." | |
23f87bed MB |
1770 | (let ((buf (current-buffer)) |
1771 | proc) | |
eec82323 | 1772 | (goto-char (point-min)) |
23f87bed MB |
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) | |
eec82323 LMI |
1777 | (set-buffer buf) |
1778 | (goto-char (point-min))))) | |
1779 | ||
23f87bed MB |
1780 | |
1781 | ;; ========================================================================== | |
1782 | ;; Obsolete nntp-open-* connection methods -- drv | |
1783 | ;; ========================================================================== | |
1784 | ||
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.") | |
1787 | ||
1788 | (defvoo nntp-telnet-shell-prompt "bash\\|\$ *\r?$\\|> *\r?" | |
1789 | "*Regular expression to match the shell prompt on the remote machine.") | |
1790 | ||
1791 | (defvoo nntp-rlogin-program "rsh" | |
1792 | "*Program used to log in on remote machines. | |
1793 | The default is \"rsh\", but \"ssh\" is a popular alternative.") | |
1794 | ||
1795 | (defvoo nntp-rlogin-parameters '("telnet" "-8" "${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.") | |
1799 | ||
1800 | (defvoo nntp-rlogin-user-name nil | |
1801 | "*User name on remote system when using the rlogin connect method.") | |
1802 | ||
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 | |
1808 | via telnet.") | |
1809 | ||
1810 | (defvoo nntp-telnet-user-name nil | |
1811 | "User name to log in via telnet with.") | |
1812 | ||
1813 | (defvoo nntp-telnet-passwd nil | |
1814 | "Password to use to log in via telnet with.") | |
1815 | ||
990e2c2f SM |
1816 | (defun nntp-service-to-port (svc) |
1817 | (cond | |
1818 | ((integerp svc) (number-to-string svc)) | |
49b196a5 | 1819 | ((string-match "\\`[0-9]+\\'" svc) svc) |
990e2c2f SM |
1820 | (t |
1821 | (with-temp-buffer | |
1822 | (ignore-errors (insert-file-contents "/etc/services")) | |
1823 | (goto-char (point-min)) | |
1824 | (if (re-search-forward (concat "^" (regexp-quote svc) | |
49b196a5 | 1825 | "[ \t]+\\([0-9]+\\)/tcp")) |
990e2c2f SM |
1826 | (match-string 1) |
1827 | svc))))) | |
1828 | ||
eec82323 | 1829 | (defun nntp-open-telnet (buffer) |
990e2c2f | 1830 | (with-current-buffer buffer |
eec82323 | 1831 | (erase-buffer) |
a8151ef7 LMI |
1832 | (let ((proc (apply |
1833 | 'start-process | |
1834 | "nntpd" buffer nntp-telnet-command nntp-telnet-switches)) | |
eec82323 LMI |
1835 | (case-fold-search t)) |
1836 | (when (memq (process-status proc) '(open run)) | |
2eebe218 | 1837 | (nntp-wait-for-string "^r?telnet") |
eec82323 | 1838 | (process-send-string proc "set escape \^X\n") |
6748645f LMI |
1839 | (cond |
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"))) | |
1843 | (t | |
1844 | (process-send-string proc (concat "open " nntp-address "\n")))) | |
1845 | (cond | |
1846 | ((not nntp-open-telnet-envuser) | |
1847 | (nntp-wait-for-string "^\r*.?login:") | |
1848 | (process-send-string | |
1849 | proc (concat | |
1850 | (or nntp-telnet-user-name | |
1851 | (setq nntp-telnet-user-name (read-string "login: "))) | |
1852 | "\n")))) | |
eec82323 LMI |
1853 | (nntp-wait-for-string "^\r*.?password:") |
1854 | (process-send-string | |
1855 | proc (concat | |
1856 | (or nntp-telnet-passwd | |
1857 | (setq nntp-telnet-passwd | |
23f87bed | 1858 | (read-passwd "Password: "))) |
eec82323 | 1859 | "\n")) |
6748645f | 1860 | (nntp-wait-for-string nntp-telnet-shell-prompt) |
eec82323 LMI |
1861 | (process-send-string |
1862 | proc (concat (mapconcat 'identity nntp-telnet-parameters " ") "\n")) | |
6748645f | 1863 | (nntp-wait-for-string "^\r*20[01]") |
eec82323 LMI |
1864 | (beginning-of-line) |
1865 | (delete-region (point-min) (point)) | |
1866 | (process-send-string proc "\^]") | |
2eebe218 | 1867 | (nntp-wait-for-string "^r?telnet") |
eec82323 LMI |
1868 | (process-send-string proc "mode character\n") |
1869 | (accept-process-output proc 1) | |
1870 | (sit-for 1) | |
1871 | (goto-char (point-min)) | |
1872 | (forward-line 1) | |
1873 | (delete-region (point) (point-max))) | |
1874 | proc))) | |
1875 | ||
1876 | (defun nntp-open-rlogin (buffer) | |
1877 | "Open a connection to SERVER using rsh." | |
1878 | (let ((proc (if nntp-rlogin-user-name | |
6748645f LMI |
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)))) | |
990e2c2f | 1886 | (with-current-buffer buffer |
6748645f LMI |
1887 | (nntp-wait-for-string "^\r*20[01]") |
1888 | (beginning-of-line) | |
1889 | (delete-region (point-min) (point)) | |
1890 | proc))) | |
eec82323 | 1891 | |
23f87bed MB |
1892 | |
1893 | ;; ========================================================================== | |
1894 | ;; Replacements for the nntp-open-* functions -- drv | |
1895 | ;; ========================================================================== | |
1896 | ||
1897 | (defun nntp-open-telnet-stream (buffer) | |
1898 | "Open a nntp connection by telnet'ing the news server. | |
990e2c2f | 1899 | `nntp-open-netcat-stream' is recommended in place of this function |
ed075cb4 | 1900 | because it is more reliable. |
23f87bed MB |
1901 | |
1902 | Please refer to the following variables to customize the connection: | |
1903 | - `nntp-pre-command', | |
1904 | - `nntp-telnet-command', | |
1905 | - `nntp-telnet-switches', | |
1906 | - `nntp-address', | |
1907 | - `nntp-port-number', | |
1908 | - `nntp-end-of-line'." | |
1909 | (let ((command `(,nntp-telnet-command | |
1910 | ,@nntp-telnet-switches | |
9b3ebcb6 | 1911 | ,nntp-address |
990e2c2f | 1912 | ,(nntp-service-to-port nntp-port-number))) |
23f87bed MB |
1913 | proc) |
1914 | (and nntp-pre-command | |
1915 | (push nntp-pre-command command)) | |
1916 | (setq proc (apply 'start-process "nntpd" buffer command)) | |
ed075cb4 | 1917 | (with-current-buffer buffer |
23f87bed MB |
1918 | (nntp-wait-for-string "^\r*20[01]") |
1919 | (beginning-of-line) | |
1920 | (delete-region (point-min) (point)) | |
1921 | proc))) | |
1922 | ||
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 | |
1926 | from there. | |
ed075cb4 SM |
1927 | `nntp-open-via-rlogin-and-netcat' is recommended in place of this function |
1928 | because it is more reliable. | |
23f87bed MB |
1929 | |
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', | |
1938 | - `nntp-address', | |
1939 | - `nntp-port-number', | |
1940 | - `nntp-end-of-line'." | |
1941 | (let ((command `(,nntp-via-address | |
1942 | ,nntp-telnet-command | |
1943 | ,@nntp-telnet-switches)) | |
1944 | proc) | |
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)) | |
ed075cb4 | 1953 | (with-current-buffer buffer |
23f87bed | 1954 | (nntp-wait-for-string "^r?telnet") |
9b3ebcb6 | 1955 | (process-send-string proc (concat "open " nntp-address " " |
990e2c2f | 1956 | (nntp-service-to-port nntp-port-number) |
9b3ebcb6 | 1957 | "\n")) |
23f87bed MB |
1958 | (nntp-wait-for-string "^\r*20[01]") |
1959 | (beginning-of-line) | |
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) | |
1965 | (sit-for 1) | |
eec82323 | 1966 | (goto-char (point-min)) |
23f87bed MB |
1967 | (forward-line 1) |
1968 | (delete-region (point) (point-max))) | |
1969 | proc)) | |
1970 | ||
01c52d31 MB |
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. | |
1975 | ||
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', | |
990e2c2f SM |
1982 | - `nntp-netcat-command', |
1983 | - `nntp-netcat-switches', | |
01c52d31 | 1984 | - `nntp-address', |
990e2c2f | 1985 | - `nntp-port-number'." |
01c52d31 MB |
1986 | (let ((command `(,@(when nntp-pre-command |
1987 | (list nntp-pre-command)) | |
1988 | ,nntp-via-rlogin-command | |
990e2c2f | 1989 | ,@nntp-via-rlogin-command-switches |
01c52d31 MB |
1990 | ,@(when nntp-via-user-name |
1991 | (list "-l" nntp-via-user-name)) | |
1992 | ,nntp-via-address | |
990e2c2f SM |
1993 | ,nntp-netcat-command |
1994 | ,@nntp-netcat-switches | |
01c52d31 | 1995 | ,nntp-address |
990e2c2f SM |
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)))) | |
2003 | ||
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. | |
2007 | ||
2008 | Please refer to the following variables to customize the connection: | |
2009 | - `nntp-pre-command', | |
2010 | - `nntp-netcat-command', | |
2011 | - `nntp-netcat-switches', | |
2012 | - `nntp-address', | |
2013 | - `nntp-port-number'." | |
2014 | (let ((command `(,nntp-netcat-command | |
2015 | ,@nntp-netcat-switches | |
2016 | ,nntp-address | |
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)))) | |
2021 | ||
01c52d31 | 2022 | |
23f87bed MB |
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 | |
2026 | from there. | |
2027 | ||
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', | |
2039 | - `nntp-address', | |
2040 | - `nntp-port-number', | |
2041 | - `nntp-end-of-line'." | |
ed075cb4 | 2042 | (with-current-buffer buffer |
23f87bed MB |
2043 | (erase-buffer) |
2044 | (let ((command `(,nntp-via-telnet-command ,@nntp-via-telnet-switches)) | |
2045 | (case-fold-search t) | |
2046 | proc) | |
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") | |
2052 | (cond | |
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"))) | |
2056 | (t | |
2057 | (process-send-string proc (concat "open " nntp-via-address | |
2058 | "\n")))) | |
2059 | (when (not nntp-via-envuser) | |
2060 | (nntp-wait-for-string "^\r*.?login:") | |
2061 | (process-send-string proc | |
2062 | (concat | |
2063 | (or nntp-via-user-name | |
2064 | (setq nntp-via-user-name | |
2065 | (read-string "login: "))) | |
2066 | "\n"))) | |
2067 | (nntp-wait-for-string "^\r*.?password:") | |
2068 | (process-send-string proc | |
2069 | (concat | |
2070 | (or nntp-via-user-password | |
2071 | (setq nntp-via-user-password | |
2072 | (read-passwd "Password: "))) | |
2073 | "\n")) | |
2074 | (nntp-wait-for-string nntp-via-shell-prompt) | |
2075 | (let ((real-telnet-command `("exec" | |
2076 | ,nntp-telnet-command | |
2077 | ,@nntp-telnet-switches | |
2078 | ,nntp-address | |
990e2c2f | 2079 | ,(nntp-service-to-port nntp-port-number)))) |
23f87bed MB |
2080 | (process-send-string proc |
2081 | (concat (mapconcat 'identity | |
2082 | real-telnet-command " ") | |
2083 | "\n"))) | |
2084 | (nntp-wait-for-string "^\r*20[01]") | |
2085 | (beginning-of-line) | |
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) | |
2091 | (sit-for 1) | |
2092 | (goto-char (point-min)) | |
2093 | (forward-line 1) | |
2094 | (delete-region (point) (point-max))) | |
2095 | proc))) | |
eec82323 | 2096 | |
01c52d31 MB |
2097 | ;; Marks handling |
2098 | ||
2099 | (defun nntp-marks-directory (server) | |
2100 | (expand-file-name server nntp-marks-directory)) | |
2101 | ||
2102 | (defvar nntp-server-to-method-cache nil | |
2103 | "Alist of servers and select methods.") | |
2104 | ||
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)))) | |
2108 | (unless method | |
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) | |
2116 | file))) | |
2117 | ||
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)))) | |
2124 | ||
8abf1b22 | 2125 | (autoload 'time-less-p "time-date") |
01c52d31 MB |
2126 | |
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)))))) | |
2134 | ||
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))) | |
2138 | (condition-case err | |
2139 | (progn | |
2140 | (nntp-possibly-create-directory group server) | |
2141 | (with-temp-file file | |
2142 | (erase-buffer) | |
2143 | (gnus-prin1 nntp-marks) | |
2144 | (insert "\n")) | |
2145 | (gnus-sethash file | |
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)))))) | |
2151 | ||
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) | |
2156 | (condition-case err | |
2157 | (with-temp-buffer | |
2158 | (gnus-sethash file (nth 5 (file-attributes file)) | |
2159 | nntp-marks-modtime) | |
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 | |
2171 | group | |
2172 | (gnus-server-to-method (format "nntp:%s" server))))) | |
2173 | (decoded-name (mm-decode-coding-string | |
2174 | group | |
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" | |
2184 | decoded-name))))) | |
2185 | ||
eec82323 LMI |
2186 | (provide 'nntp) |
2187 | ||
ed075cb4 | 2188 | ;; arch-tag: 8655466a-b1b5-4929-9c45-7b1b2e767271 |
eec82323 | 2189 | ;;; nntp.el ends here |