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16409b0b | 1 | ;;; nntp.el --- nntp access for Gnus |
f9936da6 | 2 | |
ba318903 | 3 | ;; Copyright (C) 1987-1990, 1992-1998, 2000-2014 Free Software |
ab422c4d | 4 | ;; Foundation, Inc. |
eec82323 | 5 | |
6748645f | 6 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
eec82323 LMI |
7 | ;; Keywords: news |
8 | ||
9 | ;; This file is part of GNU Emacs. | |
10 | ||
5e809f55 GM |
11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
12 | ;; it under the terms of the GNU General Public License as published by | |
13 | ;; the Free Software Foundation, either version 3 of the License, or | |
14 | ;; (at your option) any later version. | |
eec82323 | 15 | |
5e809f55 GM |
16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
eec82323 LMI |
20 | |
21 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
eec82323 LMI |
23 | |
24 | ;;; Commentary: | |
25 | ||
26 | ;;; Code: | |
27 | ||
aa8f8277 | 28 | (eval-and-compile |
da91b5f2 CY |
29 | ;; In Emacs 24, `open-protocol-stream' is an autoloaded alias for |
30 | ;; `make-network-stream'. | |
31 | (unless (fboundp 'open-protocol-stream) | |
32 | (require 'proto-stream))) | |
aa8f8277 | 33 | |
eec82323 LMI |
34 | (require 'nnheader) |
35 | (require 'nnoo) | |
36 | (require 'gnus-util) | |
01c52d31 MB |
37 | (require 'gnus) |
38 | (require 'gnus-group) ;; gnus-group-name-charset | |
eec82323 LMI |
39 | |
40 | (nnoo-declare nntp) | |
41 | ||
16409b0b | 42 | (eval-when-compile (require 'cl)) |
eec82323 | 43 | |
b8e0f0cd | 44 | (autoload 'auth-source-search "auth-source") |
e952b711 | 45 | |
e79f14a4 RS |
46 | (defgroup nntp nil |
47 | "NNTP access for Gnus." | |
48 | :group 'gnus) | |
49 | ||
eec82323 LMI |
50 | (defvoo nntp-address nil |
51 | "Address of the physical nntp server.") | |
52 | ||
53 | (defvoo nntp-port-number "nntp" | |
54 | "Port number on the physical nntp server.") | |
55 | ||
56 | (defvoo nntp-server-opened-hook '(nntp-send-mode-reader) | |
57 | "*Hook used for sending commands to the server at startup. | |
58 | The default value is `nntp-send-mode-reader', which makes an innd | |
6748645f | 59 | server spawn an nnrpd server.") |
eec82323 LMI |
60 | |
61 | (defvoo nntp-authinfo-function 'nntp-send-authinfo | |
6748645f LMI |
62 | "Function used to send AUTHINFO to the server. |
63 | It is called with no parameters.") | |
eec82323 LMI |
64 | |
65 | (defvoo nntp-server-action-alist | |
16409b0b GM |
66 | '(("nntpd 1\\.5\\.11t" |
67 | (remove-hook 'nntp-server-opened-hook 'nntp-send-mode-reader)) | |
68 | ("NNRP server Netscape" | |
69 | (setq nntp-server-list-active-group nil))) | |
eec82323 LMI |
70 | "Alist of regexps to match on server types and actions to be taken. |
71 | For instance, if you want Gnus to beep every time you connect | |
72 | to innd, you could say something like: | |
73 | ||
74 | \(setq nntp-server-action-alist | |
75 | '((\"innd\" (ding)))) | |
76 | ||
77 | You probably don't want to do that, though.") | |
78 | ||
79 | (defvoo nntp-open-connection-function 'nntp-open-network-stream | |
e742e117 CY |
80 | "Method for connecting to a remote system. |
81 | It should be a function, which is called with the output buffer | |
82 | as its single argument, or one of the following special values: | |
83 | ||
84 | - `nntp-open-network-stream' specifies a network connection, | |
85 | upgrading to a TLS connection via STARTTLS if possible. | |
86 | - `nntp-open-plain-stream' specifies an unencrypted network | |
87 | connection (no STARTTLS upgrade is attempted). | |
88 | - `nntp-open-ssl-stream' or `nntp-open-tls-stream' specify a TLS | |
89 | network connection. | |
90 | ||
91 | Apart from the above special values, valid functions are as | |
92 | follows; please refer to their respective doc string for more | |
93 | information. | |
94 | For direct connections: | |
95 | - `nntp-open-netcat-stream' | |
96 | - `nntp-open-telnet-stream' | |
97 | For indirect connections: | |
98 | - `nntp-open-via-rlogin-and-netcat' | |
99 | - `nntp-open-via-rlogin-and-telnet' | |
100 | - `nntp-open-via-telnet-and-telnet'") | |
eec82323 | 101 | |
45cb30ee MB |
102 | (defvoo nntp-never-echoes-commands nil |
103 | "*Non-nil means the nntp server never echoes commands. | |
104 | It is reported that some nntps server doesn't echo commands. So, you | |
105 | may want to set this to non-nil in the method for such a server setting | |
106 | `nntp-open-connection-function' to `nntp-open-ssl-stream' for example. | |
107 | Note that the `nntp-open-connection-functions-never-echo-commands' | |
108 | variable overrides the nil value of this variable.") | |
109 | ||
110 | (defvoo nntp-open-connection-functions-never-echo-commands | |
111 | '(nntp-open-network-stream) | |
112 | "*List of functions that never echo commands. | |
113 | Add or set a function which you set to `nntp-open-connection-function' | |
114 | to this list if it does not echo commands. Note that a non-nil value | |
115 | of the `nntp-never-echoes-commands' variable overrides this variable.") | |
116 | ||
23f87bed MB |
117 | (defvoo nntp-pre-command nil |
118 | "*Pre-command to use with the various nntp-open-via-* methods. | |
119 | This is where you would put \"runsocks\" or stuff like that.") | |
eec82323 | 120 | |
23f87bed MB |
121 | (defvoo nntp-telnet-command "telnet" |
122 | "*Telnet command used to connect to the nntp server. | |
01c52d31 MB |
123 | This command is used by the methods `nntp-open-telnet-stream', |
124 | `nntp-open-via-rlogin-and-telnet' and `nntp-open-via-telnet-and-telnet'.") | |
eec82323 | 125 | |
23f87bed MB |
126 | (defvoo nntp-telnet-switches '("-8") |
127 | "*Switches given to the telnet command `nntp-telnet-command'.") | |
eec82323 | 128 | |
23f87bed MB |
129 | (defvoo nntp-end-of-line "\r\n" |
130 | "*String to use on the end of lines when talking to the NNTP server. | |
01c52d31 MB |
131 | This is \"\\r\\n\" by default, but should be \"\\n\" when using an indirect |
132 | connection method (nntp-open-via-*).") | |
eec82323 | 133 | |
23f87bed MB |
134 | (defvoo nntp-via-rlogin-command "rsh" |
135 | "*Rlogin command used to connect to an intermediate host. | |
01c52d31 MB |
136 | This command is used by the methods `nntp-open-via-rlogin-and-telnet' |
137 | and `nntp-open-via-rlogin-and-netcat'. The default is \"rsh\", but \"ssh\" | |
138 | is a popular alternative.") | |
6748645f | 139 | |
23f87bed MB |
140 | (defvoo nntp-via-rlogin-command-switches nil |
141 | "*Switches given to the rlogin command `nntp-via-rlogin-command'. | |
142 | If you use \"ssh\" for `nntp-via-rlogin-command', you may set this to | |
143 | \(\"-C\") in order to compress all data connections, otherwise set this | |
144 | to \(\"-t\" \"-e\" \"none\") or (\"-C\" \"-t\" \"-e\" \"none\") if the telnet | |
145 | command requires a pseudo-tty allocation on an intermediate host.") | |
6748645f | 146 | |
23f87bed MB |
147 | (defvoo nntp-via-telnet-command "telnet" |
148 | "*Telnet command used to connect to an intermediate host. | |
149 | This command is used by the `nntp-open-via-telnet-and-telnet' method.") | |
a8151ef7 | 150 | |
23f87bed MB |
151 | (defvoo nntp-via-telnet-switches '("-8") |
152 | "*Switches given to the telnet command `nntp-via-telnet-command'.") | |
a8151ef7 | 153 | |
990e2c2f | 154 | (defvoo nntp-netcat-command "nc" |
01c52d31 | 155 | "*Netcat command used to connect to the nntp server. |
990e2c2f SM |
156 | This command is used by the `nntp-open-netcat-stream' and |
157 | `nntp-open-via-rlogin-and-netcat' methods.") | |
01c52d31 | 158 | |
990e2c2f SM |
159 | (defvoo nntp-netcat-switches nil |
160 | "*Switches given to the netcat command `nntp-netcat-command'.") | |
01c52d31 | 161 | |
23f87bed MB |
162 | (defvoo nntp-via-user-name nil |
163 | "*User name to log in on an intermediate host with. | |
01c52d31 | 164 | This variable is used by the various nntp-open-via-* methods.") |
23f87bed MB |
165 | |
166 | (defvoo nntp-via-user-password nil | |
167 | "*Password to use to log in on an intermediate host with. | |
168 | This variable is used by the `nntp-open-via-telnet-and-telnet' method.") | |
169 | ||
170 | (defvoo nntp-via-address nil | |
171 | "*Address of an intermediate host to connect to. | |
01c52d31 | 172 | This variable is used by the various nntp-open-via-* methods.") |
23f87bed MB |
173 | |
174 | (defvoo nntp-via-envuser nil | |
175 | "*Whether both telnet client and server support the ENVIRON option. | |
176 | If non-nil, there will be no prompt for a login name.") | |
177 | ||
178 | (defvoo nntp-via-shell-prompt "bash\\|\$ *\r?$\\|> *\r?" | |
179 | "*Regular expression to match the shell prompt on an intermediate host. | |
180 | This variable is used by the `nntp-open-via-telnet-and-telnet' method.") | |
eec82323 LMI |
181 | |
182 | (defvoo nntp-large-newsgroup 50 | |
23f87bed MB |
183 | "*The number of articles which indicates a large newsgroup. |
184 | If the number of articles is greater than the value, verbose | |
eec82323 LMI |
185 | messages will be shown to indicate the current status.") |
186 | ||
187 | (defvoo nntp-maximum-request 400 | |
188 | "*The maximum number of the requests sent to the NNTP server at one time. | |
189 | If Emacs hangs up while retrieving headers, set the variable to a | |
190 | lower value.") | |
191 | ||
192 | (defvoo nntp-nov-is-evil nil | |
193 | "*If non-nil, nntp will never attempt to use XOVER when talking to the server.") | |
194 | ||
195 | (defvoo nntp-xover-commands '("XOVER" "XOVERVIEW") | |
196 | "*List of strings that are used as commands to fetch NOV lines from a server. | |
197 | The strings are tried in turn until a positive response is gotten. If | |
198 | none of the commands are successful, nntp will just grab headers one | |
199 | by one.") | |
200 | ||
a8151ef7 | 201 | (defvoo nntp-nov-gap 5 |
eec82323 LMI |
202 | "*Maximum allowed gap between two articles. |
203 | If the gap between two consecutive articles is bigger than this | |
204 | variable, split the XOVER request into two requests.") | |
205 | ||
37cc095b MB |
206 | (defvoo nntp-xref-number-is-evil nil |
207 | "*If non-nil, Gnus never trusts article numbers in the Xref header. | |
208 | Some news servers, e.g., ones running Diablo, run multiple engines | |
209 | having the same articles but article numbers are not kept synchronized | |
210 | between them. If you connect to such a server, set this to a non-nil | |
211 | value, and Gnus never uses article numbers (that appear in the Xref | |
212 | header and vary by which engine is chosen) to refer to articles.") | |
213 | ||
eec82323 LMI |
214 | (defvoo nntp-prepare-server-hook nil |
215 | "*Hook run before a server is opened. | |
216 | If can be used to set up a server remotely, for instance. Say you | |
217 | have an account at the machine \"other.machine\". This machine has | |
218 | access to an NNTP server that you can't access locally. You could | |
219 | then use this hook to rsh to the remote machine and start a proxy NNTP | |
6748645f LMI |
220 | server there that you can connect to. See also |
221 | `nntp-open-connection-function'") | |
eec82323 | 222 | |
6748645f LMI |
223 | (defcustom nntp-authinfo-file "~/.authinfo" |
224 | ".netrc-like file that holds nntp authinfo passwords." | |
e79f14a4 | 225 | :group 'nntp |
6748645f LMI |
226 | :type |
227 | '(choice file | |
228 | (repeat :tag "Entries" | |
229 | :menu-tag "Inline" | |
230 | (list :format "%v" | |
231 | :value ("" ("login" . "") ("password" . "")) | |
232 | (string :tag "Host") | |
233 | (checklist :inline t | |
234 | (cons :format "%v" | |
235 | (const :format "" "login") | |
236 | (string :format "Login: %v")) | |
237 | (cons :format "%v" | |
238 | (const :format "" "password") | |
23f87bed | 239 | (string :format "Password: %v"))))))) |
6748645f | 240 | |
1e91d506 G |
241 | (make-obsolete 'nntp-authinfo-file nil "Emacs 24.1") |
242 | ||
eec82323 LMI |
243 | \f |
244 | ||
6748645f LMI |
245 | (defvoo nntp-connection-timeout nil |
246 | "*Number of seconds to wait before an nntp connection times out. | |
2eebe218 DL |
247 | If this variable is nil, which is the default, no timers are set. |
248 | NOTE: This variable is never seen to work in Emacs 20 and XEmacs 21.") | |
6748645f | 249 | |
23f87bed MB |
250 | (defvoo nntp-prepare-post-hook nil |
251 | "*Hook run just before posting an article. It is supposed to be used | |
252 | to insert Cancel-Lock headers.") | |
253 | ||
6b958814 G |
254 | (defvoo nntp-server-list-active-group 'try |
255 | "If nil, then always use GROUP instead of LIST ACTIVE. | |
256 | This is usually slower, but on misconfigured servers that don't | |
257 | update their active files often, this can help.") | |
258 | ||
eec82323 LMI |
259 | ;;; Internal variables. |
260 | ||
7e67562f | 261 | (defvoo nntp-retrieval-in-progress nil) |
6748645f LMI |
262 | (defvar nntp-record-commands nil |
263 | "*If non-nil, nntp will record all commands in the \"*nntp-log*\" buffer.") | |
264 | ||
eec82323 LMI |
265 | (defvar nntp-have-messaged nil) |
266 | ||
267 | (defvar nntp-process-wait-for nil) | |
268 | (defvar nntp-process-to-buffer nil) | |
269 | (defvar nntp-process-callback nil) | |
270 | (defvar nntp-process-decode nil) | |
271 | (defvar nntp-process-start-point nil) | |
272 | (defvar nntp-inside-change-function nil) | |
6748645f LMI |
273 | (defvoo nntp-last-command-time nil) |
274 | (defvoo nntp-last-command nil) | |
275 | (defvoo nntp-authinfo-password nil) | |
276 | (defvoo nntp-authinfo-user nil) | |
01c52d31 | 277 | (defvoo nntp-authinfo-force nil) |
eec82323 LMI |
278 | |
279 | (defvar nntp-connection-list nil) | |
280 | ||
281 | (defvoo nntp-server-type nil) | |
282 | (defvoo nntp-connection-alist nil) | |
283 | (defvoo nntp-status-string "") | |
284 | (defconst nntp-version "nntp 5.0") | |
285 | (defvoo nntp-inhibit-erase nil) | |
286 | (defvoo nntp-inhibit-output nil) | |
287 | ||
288 | (defvoo nntp-server-xover 'try) | |
eec82323 | 289 | |
16409b0b GM |
290 | (defvar nntp-async-timer nil) |
291 | (defvar nntp-async-process-list nil) | |
292 | ||
58090a8d | 293 | (defvar nntp-authinfo-rejected nil |
c9fc72fa LMI |
294 | "A custom error condition used to report 'Authentication Rejected' errors. |
295 | Condition handlers that match just this condition ensure that the nntp | |
58090a8d MB |
296 | backend doesn't catch this error.") |
297 | (put 'nntp-authinfo-rejected 'error-conditions '(error nntp-authinfo-rejected)) | |
298 | (put 'nntp-authinfo-rejected 'error-message "Authorization Rejected") | |
299 | ||
eec82323 LMI |
300 | \f |
301 | ||
302 | ;;; Internal functions. | |
303 | ||
304 | (defsubst nntp-send-string (process string) | |
305 | "Send STRING to PROCESS." | |
6748645f LMI |
306 | ;; We need to store the time to provide timeouts, and |
307 | ;; to store the command so the we can replay the command | |
308 | ;; if the server gives us an AUTHINFO challenge. | |
309 | (setq nntp-last-command-time (current-time) | |
310 | nntp-last-command string) | |
311 | (when nntp-record-commands | |
312 | (nntp-record-command string)) | |
23f87bed MB |
313 | (process-send-string process (concat string nntp-end-of-line)) |
314 | (or (memq (process-status process) '(open run)) | |
315 | (nntp-report "Server closed connection"))) | |
eec82323 | 316 | |
6748645f LMI |
317 | (defun nntp-record-command (string) |
318 | "Record the command STRING." | |
ed075cb4 | 319 | (with-current-buffer (get-buffer-create "*nntp-log*") |
6748645f | 320 | (goto-char (point-max)) |
240a298f PE |
321 | (insert (format-time-string "%Y%m%dT%H%M%S.%3N") |
322 | " " nntp-address " " string "\n"))) | |
6748645f | 323 | |
2612a3d6 SM |
324 | (defvar nntp--report-1 nil) |
325 | ||
23f87bed MB |
326 | (defun nntp-report (&rest args) |
327 | "Report an error from the nntp backend. The first string in ARGS | |
328 | can be a format string. For some commands, the failed command may be | |
329 | retried once before actually displaying the error report." | |
2612a3d6 SM |
330 | (if nntp--report-1 |
331 | (progn | |
332 | ;; Throw out to nntp-with-open-group-error so that the connection may | |
333 | ;; be restored and the command retried." | |
334 | (when nntp-record-commands | |
335 | (nntp-record-command "*** CONNECTION LOST ***")) | |
336 | (throw 'nntp-with-open-group-error t)) | |
23f87bed | 337 | |
2612a3d6 SM |
338 | (when nntp-record-commands |
339 | (nntp-record-command "*** CALLED nntp-report ***")) | |
23f87bed | 340 | |
2612a3d6 | 341 | (nnheader-report 'nntp args) |
23f87bed | 342 | |
2612a3d6 | 343 | (apply 'error args))) |
23f87bed | 344 | |
1428d46b MB |
345 | (defmacro nntp-copy-to-buffer (buffer start end) |
346 | "Copy string from unibyte current buffer to multibyte buffer." | |
347 | (if (featurep 'xemacs) | |
348 | `(copy-to-buffer ,buffer ,start ,end) | |
349 | `(let ((string (buffer-substring ,start ,end))) | |
350 | (with-current-buffer ,buffer | |
351 | (erase-buffer) | |
352 | (insert (if enable-multibyte-characters | |
353 | (mm-string-to-multibyte string) | |
354 | string)) | |
355 | (goto-char (point-min)) | |
356 | nil)))) | |
357 | ||
eec82323 LMI |
358 | (defsubst nntp-wait-for (process wait-for buffer &optional decode discard) |
359 | "Wait for WAIT-FOR to arrive from PROCESS." | |
01c52d31 | 360 | |
ed075cb4 | 361 | (with-current-buffer (process-buffer process) |
eec82323 | 362 | (goto-char (point-min)) |
01c52d31 | 363 | |
6748645f | 364 | (while (and (or (not (memq (char-after (point)) '(?2 ?3 ?4 ?5))) |
58090a8d | 365 | (looking-at "48[02]")) |
6748645f | 366 | (memq (process-status process) '(open run))) |
58090a8d | 367 | (cond ((looking-at "480") |
01c52d31 | 368 | (nntp-handle-authinfo process)) |
58090a8d | 369 | ((looking-at "482") |
04db63bc G |
370 | (nnheader-report 'nntp "%s" |
371 | (get 'nntp-authinfo-rejected 'error-message)) | |
58090a8d MB |
372 | (signal 'nntp-authinfo-rejected nil)) |
373 | ((looking-at "^.*\n") | |
374 | (delete-region (point) (progn (forward-line 1) (point))))) | |
eec82323 LMI |
375 | (nntp-accept-process-output process) |
376 | (goto-char (point-min))) | |
377 | (prog1 | |
6748645f LMI |
378 | (cond |
379 | ((looking-at "[45]") | |
380 | (progn | |
381 | (nntp-snarf-error-message) | |
382 | nil)) | |
383 | ((not (memq (process-status process) '(open run))) | |
23f87bed | 384 | (nntp-report "Server closed connection")) |
6748645f | 385 | (t |
eec82323 | 386 | (goto-char (point-max)) |
23f87bed MB |
387 | (let ((limit (point-min)) |
388 | response) | |
eec82323 | 389 | (while (not (re-search-backward wait-for limit t)) |
6748645f | 390 | (nntp-accept-process-output process) |
eec82323 LMI |
391 | ;; We assume that whatever we wait for is less than 1000 |
392 | ;; characters long. | |
393 | (setq limit (max (- (point-max) 1000) (point-min))) | |
23f87bed MB |
394 | (goto-char (point-max))) |
395 | (setq response (match-string 0)) | |
396 | (with-current-buffer nntp-server-buffer | |
397 | (setq nntp-process-response response))) | |
eec82323 LMI |
398 | (nntp-decode-text (not decode)) |
399 | (unless discard | |
ed075cb4 | 400 | (with-current-buffer buffer |
23f87bed | 401 | (goto-char (point-max)) |
9f5e78f7 | 402 | (nnheader-insert-buffer-substring (process-buffer process)) |
eec82323 LMI |
403 | ;; Nix out "nntp reading...." message. |
404 | (when nntp-have-messaged | |
405 | (setq nntp-have-messaged nil) | |
23f87bed MB |
406 | (nnheader-message 5 "")))) |
407 | t)) | |
eec82323 LMI |
408 | (unless discard |
409 | (erase-buffer))))) | |
410 | ||
16409b0b GM |
411 | (defun nntp-kill-buffer (buffer) |
412 | (when (buffer-name buffer) | |
1e91d506 G |
413 | (let ((process (get-buffer-process buffer))) |
414 | (when process | |
415 | (delete-process process))) | |
16409b0b GM |
416 | (kill-buffer buffer) |
417 | (nnheader-init-server-buffer))) | |
418 | ||
01c52d31 MB |
419 | (defun nntp-erase-buffer (buffer) |
420 | "Erase contents of BUFFER." | |
421 | (with-current-buffer buffer | |
422 | (erase-buffer))) | |
423 | ||
eec82323 LMI |
424 | (defsubst nntp-find-connection (buffer) |
425 | "Find the connection delivering to BUFFER." | |
426 | (let ((alist nntp-connection-alist) | |
427 | (buffer (if (stringp buffer) (get-buffer buffer) buffer)) | |
428 | process entry) | |
23f87bed | 429 | (while (and alist (setq entry (pop alist))) |
eec82323 LMI |
430 | (when (eq buffer (cadr entry)) |
431 | (setq process (car entry) | |
432 | alist nil))) | |
433 | (when process | |
434 | (if (memq (process-status process) '(open run)) | |
435 | process | |
16409b0b | 436 | (nntp-kill-buffer (process-buffer process)) |
eec82323 LMI |
437 | (setq nntp-connection-alist (delq entry nntp-connection-alist)) |
438 | nil)))) | |
439 | ||
440 | (defsubst nntp-find-connection-entry (buffer) | |
441 | "Return the entry for the connection to BUFFER." | |
442 | (assq (nntp-find-connection buffer) nntp-connection-alist)) | |
443 | ||
444 | (defun nntp-find-connection-buffer (buffer) | |
445 | "Return the process connection buffer tied to BUFFER." | |
446 | (let ((process (nntp-find-connection buffer))) | |
447 | (when process | |
448 | (process-buffer process)))) | |
449 | ||
450 | (defsubst nntp-retrieve-data (command address port buffer | |
6748645f | 451 | &optional wait-for callback decode) |
eec82323 LMI |
452 | "Use COMMAND to retrieve data into BUFFER from PORT on ADDRESS." |
453 | (let ((process (or (nntp-find-connection buffer) | |
454 | (nntp-open-connection buffer)))) | |
23f87bed MB |
455 | (if process |
456 | (progn | |
457 | (unless (or nntp-inhibit-erase nnheader-callback-function) | |
01c52d31 | 458 | (nntp-erase-buffer (process-buffer process))) |
23f87bed MB |
459 | (condition-case err |
460 | (progn | |
461 | (when command | |
462 | (nntp-send-string process command)) | |
463 | (cond | |
464 | ((eq callback 'ignore) | |
465 | t) | |
466 | ((and callback wait-for) | |
467 | (nntp-async-wait process wait-for buffer decode callback) | |
468 | t) | |
469 | (wait-for | |
470 | (nntp-wait-for process wait-for buffer decode)) | |
471 | (t t))) | |
58090a8d MB |
472 | (nntp-authinfo-rejected |
473 | (signal 'nntp-authinfo-rejected (cdr err))) | |
23f87bed MB |
474 | (error |
475 | (nnheader-report 'nntp "Couldn't open connection to %s: %s" | |
476 | address err)) | |
477 | (quit | |
478 | (message "Quit retrieving data from nntp") | |
479 | (signal 'quit nil) | |
480 | nil))) | |
481 | (nnheader-report 'nntp "Couldn't open connection to %s" address)))) | |
eec82323 LMI |
482 | |
483 | (defsubst nntp-send-command (wait-for &rest strings) | |
484 | "Send STRINGS to server and wait until WAIT-FOR returns." | |
485 | (when (and (not nnheader-callback-function) | |
486 | (not nntp-inhibit-output)) | |
01c52d31 | 487 | (nntp-erase-buffer nntp-server-buffer)) |
23f87bed MB |
488 | (let* ((command (mapconcat 'identity strings " ")) |
489 | (process (nntp-find-connection nntp-server-buffer)) | |
490 | (buffer (and process (process-buffer process))) | |
491 | (pos (and buffer (with-current-buffer buffer (point))))) | |
492 | (if process | |
493 | (prog1 | |
494 | (nntp-retrieve-data command | |
495 | nntp-address nntp-port-number | |
496 | nntp-server-buffer | |
497 | wait-for nnheader-callback-function) | |
498 | ;; If nothing to wait for, still remove possibly echo'ed commands. | |
45cb30ee MB |
499 | ;; We don't have echoes if `nntp-never-echoes-commands' is non-nil |
500 | ;; or the value of `nntp-open-connection-function' is in | |
501 | ;; `nntp-open-connection-functions-never-echo-commands', so we | |
502 | ;; skip this in that cases. | |
23f87bed | 503 | (unless (or wait-for |
45cb30ee MB |
504 | nntp-never-echoes-commands |
505 | (memq | |
506 | nntp-open-connection-function | |
507 | nntp-open-connection-functions-never-echo-commands)) | |
23f87bed | 508 | (nntp-accept-response) |
ed075cb4 | 509 | (with-current-buffer buffer |
23f87bed MB |
510 | (goto-char pos) |
511 | (if (looking-at (regexp-quote command)) | |
512 | (delete-region pos (progn (forward-line 1) | |
01c52d31 | 513 | (point-at-bol))))))) |
23f87bed MB |
514 | (nnheader-report 'nntp "Couldn't open connection to %s." |
515 | nntp-address)))) | |
eec82323 LMI |
516 | |
517 | (defun nntp-send-command-nodelete (wait-for &rest strings) | |
518 | "Send STRINGS to server and wait until WAIT-FOR returns." | |
23f87bed MB |
519 | (let* ((command (mapconcat 'identity strings " ")) |
520 | (process (nntp-find-connection nntp-server-buffer)) | |
521 | (buffer (and process (process-buffer process))) | |
522 | (pos (and buffer (with-current-buffer buffer (point))))) | |
523 | (if process | |
524 | (prog1 | |
525 | (nntp-retrieve-data command | |
526 | nntp-address nntp-port-number | |
527 | nntp-server-buffer | |
528 | wait-for nnheader-callback-function) | |
529 | ;; If nothing to wait for, still remove possibly echo'ed commands | |
530 | (unless wait-for | |
531 | (nntp-accept-response) | |
ed075cb4 | 532 | (with-current-buffer buffer |
23f87bed MB |
533 | (goto-char pos) |
534 | (if (looking-at (regexp-quote command)) | |
535 | (delete-region pos (progn (forward-line 1) | |
01c52d31 | 536 | (point-at-bol))))))) |
23f87bed MB |
537 | (nnheader-report 'nntp "Couldn't open connection to %s." |
538 | nntp-address)))) | |
eec82323 LMI |
539 | |
540 | (defun nntp-send-command-and-decode (wait-for &rest strings) | |
541 | "Send STRINGS to server and wait until WAIT-FOR returns." | |
542 | (when (and (not nnheader-callback-function) | |
543 | (not nntp-inhibit-output)) | |
01c52d31 | 544 | (nntp-erase-buffer nntp-server-buffer)) |
23f87bed MB |
545 | (let* ((command (mapconcat 'identity strings " ")) |
546 | (process (nntp-find-connection nntp-server-buffer)) | |
547 | (buffer (and process (process-buffer process))) | |
548 | (pos (and buffer (with-current-buffer buffer (point))))) | |
549 | (if process | |
550 | (prog1 | |
551 | (nntp-retrieve-data command | |
552 | nntp-address nntp-port-number | |
553 | nntp-server-buffer | |
554 | wait-for nnheader-callback-function t) | |
555 | ;; If nothing to wait for, still remove possibly echo'ed commands | |
556 | (unless wait-for | |
557 | (nntp-accept-response) | |
ed075cb4 | 558 | (with-current-buffer buffer |
01c52d31 MB |
559 | (goto-char pos) |
560 | (if (looking-at (regexp-quote command)) | |
561 | (delete-region pos (progn (forward-line 1) (point-at-bol)))) | |
562 | ))) | |
23f87bed MB |
563 | (nnheader-report 'nntp "Couldn't open connection to %s." |
564 | nntp-address)))) | |
565 | ||
eec82323 LMI |
566 | |
567 | (defun nntp-send-buffer (wait-for) | |
568 | "Send the current buffer to server and wait until WAIT-FOR returns." | |
569 | (when (and (not nnheader-callback-function) | |
570 | (not nntp-inhibit-output)) | |
01c52d31 MB |
571 | (nntp-erase-buffer |
572 | (nntp-find-connection-buffer nntp-server-buffer))) | |
eec82323 | 573 | (nntp-encode-text) |
ed075cb4 SM |
574 | ;; Make sure we did not forget to encode some of the content. |
575 | (assert (save-excursion (goto-char (point-min)) | |
576 | (not (re-search-forward "[^\000-\377]" nil t)))) | |
577 | (mm-disable-multibyte) | |
578 | (process-send-region (nntp-find-connection nntp-server-buffer) | |
579 | (point-min) (point-max)) | |
eec82323 LMI |
580 | (nntp-retrieve-data |
581 | nil nntp-address nntp-port-number nntp-server-buffer | |
582 | wait-for nnheader-callback-function)) | |
583 | ||
584 | \f | |
585 | ||
586 | ;;; Interface functions. | |
587 | ||
588 | (nnoo-define-basics nntp) | |
589 | ||
6748645f LMI |
590 | (defsubst nntp-next-result-arrived-p () |
591 | (cond | |
592 | ;; A result that starts with a 2xx code is terminated by | |
593 | ;; a line with only a "." on it. | |
16409b0b | 594 | ((eq (char-after) ?2) |
6748645f | 595 | (if (re-search-forward "\n\\.\r?\n" nil t) |
01c52d31 MB |
596 | (progn |
597 | ;; Some broken news servers add another dot at the end. | |
598 | ;; Protect against inflooping there. | |
599 | (while (looking-at "^\\.\r?\n") | |
600 | (forward-line 1)) | |
601 | t) | |
6748645f LMI |
602 | nil)) |
603 | ;; A result that starts with a 3xx or 4xx code is terminated | |
604 | ;; by a newline. | |
605 | ((looking-at "[34]") | |
606 | (if (search-forward "\n" nil t) | |
607 | t | |
608 | nil)) | |
609 | ;; No result here. | |
610 | (t | |
611 | nil))) | |
612 | ||
ed075cb4 SM |
613 | (defun nntp-with-open-group-function (-group -server -connectionless -bodyfun) |
614 | "Protect against servers that don't like clients that keep idle connections opens. | |
615 | The problem being that these servers may either close a connection or | |
616 | simply ignore any further requests on a connection. Closed | |
617 | connections are not detected until `accept-process-output' has updated | |
618 | the `process-status'. Dropped connections are not detected until the | |
619 | connection timeouts (which may be several minutes) or | |
620 | `nntp-connection-timeout' has expired. When these occur | |
621 | `nntp-with-open-group', opens a new connection then re-issues the NNTP | |
622 | command whose response triggered the error." | |
2612a3d6 SM |
623 | (let ((nntp-report-n nntp--report-1) |
624 | (nntp--report-1 t) | |
625 | (nntp-with-open-group-internal nil)) | |
ed075cb4 SM |
626 | (while (catch 'nntp-with-open-group-error |
627 | ;; Open the connection to the server | |
628 | ;; NOTE: Existing connections are NOT tested. | |
629 | (nntp-possibly-change-group -group -server -connectionless) | |
630 | ||
631 | (let ((-timer | |
632 | (and nntp-connection-timeout | |
633 | (run-at-time | |
634 | nntp-connection-timeout nil | |
635 | (lambda () | |
636 | (let* ((-process (nntp-find-connection | |
637 | nntp-server-buffer)) | |
638 | (-buffer (and -process | |
639 | (process-buffer -process)))) | |
640 | ;; When I an able to identify the | |
641 | ;; connection to the server AND I've | |
c80e3b4a | 642 | ;; received NO response for |
ed075cb4 SM |
643 | ;; nntp-connection-timeout seconds. |
644 | (when (and -buffer (eq 0 (buffer-size -buffer))) | |
645 | ;; Close the connection. Take no | |
646 | ;; other action as the accept input | |
647 | ;; code will handle the closed | |
648 | ;; connection. | |
649 | (nntp-kill-buffer -buffer)))))))) | |
650 | (unwind-protect | |
651 | (setq nntp-with-open-group-internal | |
652 | (condition-case nil | |
653 | (funcall -bodyfun) | |
654 | (quit | |
655 | (unless debug-on-quit | |
656 | (nntp-close-server)) | |
657 | (signal 'quit nil)))) | |
658 | (when -timer | |
659 | (nnheader-cancel-timer -timer))) | |
660 | nil)) | |
2612a3d6 | 661 | (setq nntp--report-1 nntp-report-n)) |
ed075cb4 SM |
662 | nntp-with-open-group-internal)) |
663 | ||
23f87bed MB |
664 | (defmacro nntp-with-open-group (group server &optional connectionless &rest forms) |
665 | "Protect against servers that don't like clients that keep idle connections opens. | |
666 | The problem being that these servers may either close a connection or | |
667 | simply ignore any further requests on a connection. Closed | |
ed075cb4 SM |
668 | connections are not detected until `accept-process-output' has updated |
669 | the `process-status'. Dropped connections are not detected until the | |
23f87bed | 670 | connection timeouts (which may be several minutes) or |
ed075cb4 SM |
671 | `nntp-connection-timeout' has expired. When these occur |
672 | `nntp-with-open-group', opens a new connection then re-issues the NNTP | |
23f87bed | 673 | command whose response triggered the error." |
ed075cb4 | 674 | (declare (indent 2) (debug (form form [&optional symbolp] def-body))) |
23f87bed MB |
675 | (when (and (listp connectionless) |
676 | (not (eq connectionless nil))) | |
677 | (setq forms (cons connectionless forms) | |
678 | connectionless nil)) | |
ed075cb4 | 679 | `(nntp-with-open-group-function ,group ,server ,connectionless (lambda () ,@forms))) |
23f87bed | 680 | |
eec82323 LMI |
681 | (deffoo nntp-retrieve-headers (articles &optional group server fetch-old) |
682 | "Retrieve the headers of ARTICLES." | |
23f87bed MB |
683 | (nntp-with-open-group |
684 | group server | |
ed075cb4 | 685 | (with-current-buffer (nntp-find-connection-buffer nntp-server-buffer) |
23f87bed MB |
686 | (erase-buffer) |
687 | (if (and (not gnus-nov-is-evil) | |
688 | (not nntp-nov-is-evil) | |
689 | (nntp-retrieve-headers-with-xover articles fetch-old)) | |
690 | ;; We successfully retrieved the headers via XOVER. | |
691 | 'nov | |
692 | ;; XOVER didn't work, so we do it the hard, slow and inefficient | |
693 | ;; way. | |
694 | (let ((number (length articles)) | |
695 | (articles articles) | |
696 | (count 0) | |
697 | (received 0) | |
698 | (last-point (point-min)) | |
699 | (buf (nntp-find-connection-buffer nntp-server-buffer)) | |
700 | (nntp-inhibit-erase t) | |
701 | article) | |
702 | ;; Send HEAD commands. | |
703 | (while (setq article (pop articles)) | |
704 | (nntp-send-command | |
705 | nil | |
706 | "HEAD" (if (numberp article) | |
707 | (int-to-string article) | |
708 | ;; `articles' is either a list of article numbers | |
709 | ;; or a list of article IDs. | |
710 | article)) | |
711 | (incf count) | |
712 | ;; Every 400 requests we have to read the stream in | |
713 | ;; order to avoid deadlocks. | |
714 | (when (or (null articles) ;All requests have been sent. | |
715 | (zerop (% count nntp-maximum-request))) | |
716 | (nntp-accept-response) | |
717 | (while (progn | |
718 | (set-buffer buf) | |
719 | (goto-char last-point) | |
720 | ;; Count replies. | |
721 | (while (nntp-next-result-arrived-p) | |
722 | (setq last-point (point)) | |
723 | (incf received)) | |
724 | (< received count)) | |
725 | ;; If number of headers is greater than 100, give | |
726 | ;; informative messages. | |
727 | (and (numberp nntp-large-newsgroup) | |
728 | (> number nntp-large-newsgroup) | |
729 | (zerop (% received 20)) | |
730 | (nnheader-message 6 "NNTP: Receiving headers... %d%%" | |
731 | (/ (* received 100) number))) | |
732 | (nntp-accept-response)))) | |
733 | (and (numberp nntp-large-newsgroup) | |
734 | (> number nntp-large-newsgroup) | |
735 | (nnheader-message 6 "NNTP: Receiving headers...done")) | |
736 | ||
737 | ;; Now all of replies are received. Fold continuation lines. | |
738 | (nnheader-fold-continuation-lines) | |
739 | ;; Remove all "\r"'s. | |
740 | (nnheader-strip-cr) | |
1428d46b | 741 | (nntp-copy-to-buffer nntp-server-buffer (point-min) (point-max)) |
23f87bed | 742 | 'headers))))) |
eec82323 | 743 | |
5415d076 | 744 | (deffoo nntp-retrieve-group-data-early (server infos) |
1d88c091 LI |
745 | "Retrieve group info on INFOS." |
746 | (nntp-with-open-group nil server | |
7e67562f | 747 | (let ((buffer (nntp-find-connection-buffer nntp-server-buffer))) |
964646c4 LI |
748 | (unless infos |
749 | (with-current-buffer buffer | |
750 | (setq nntp-retrieval-in-progress nil))) | |
7e67562f | 751 | (when (and buffer |
964646c4 | 752 | infos |
7e67562f G |
753 | (with-current-buffer buffer |
754 | (not nntp-retrieval-in-progress))) | |
755 | ;; The first time this is run, this variable is `try'. So we | |
756 | ;; try. | |
757 | (when (eq nntp-server-list-active-group 'try) | |
758 | (nntp-try-list-active | |
759 | (gnus-group-real-name (gnus-info-group (car infos))))) | |
760 | (with-current-buffer buffer | |
761 | (erase-buffer) | |
762 | ;; Mark this buffer as "in use" in case we try to issue two | |
763 | ;; retrievals from the same server. This shouldn't happen, | |
764 | ;; so this is mostly a sanity check. | |
765 | (setq nntp-retrieval-in-progress t) | |
766 | (let ((nntp-inhibit-erase t) | |
767 | (command (if nntp-server-list-active-group | |
768 | "LIST ACTIVE" "GROUP"))) | |
769 | (dolist (info infos) | |
770 | (nntp-send-command | |
771 | nil command (gnus-group-real-name (gnus-info-group info))))) | |
772 | (length infos)))))) | |
1d88c091 | 773 | |
5415d076 | 774 | (deffoo nntp-finish-retrieve-group-infos (server infos count) |
1d88c091 LI |
775 | (nntp-with-open-group nil server |
776 | (let ((buf (nntp-find-connection-buffer nntp-server-buffer)) | |
777 | (method (gnus-find-method-for-group | |
778 | (gnus-info-group (car infos)) | |
779 | (car infos))) | |
780 | (received 0) | |
781 | (last-point 1)) | |
7e67562f G |
782 | (with-current-buffer buf |
783 | (setq nntp-retrieval-in-progress nil)) | |
76b8d9dd LI |
784 | (when (and buf |
785 | count) | |
1d88c091 LI |
786 | (with-current-buffer buf |
787 | (while (and (gnus-buffer-live-p buf) | |
788 | (progn | |
789 | (goto-char last-point) | |
790 | ;; Count replies. | |
06b840e0 LI |
791 | (while (re-search-forward |
792 | (if nntp-server-list-active-group | |
793 | "^[.]" | |
794 | "^[0-9]") | |
795 | nil t) | |
1d88c091 LI |
796 | (incf received)) |
797 | (setq last-point (point)) | |
798 | (< received count))) | |
799 | (nntp-accept-response)) | |
800 | ;; We now have all the entries. Remove CRs. | |
5415d076 | 801 | (nnheader-strip-cr) |
1d88c091 LI |
802 | (if (not nntp-server-list-active-group) |
803 | (progn | |
804 | (nntp-copy-to-buffer nntp-server-buffer | |
805 | (point-min) (point-max)) | |
89b163db G |
806 | (with-current-buffer nntp-server-buffer |
807 | (gnus-groups-to-gnus-format method gnus-active-hashtb t))) | |
1d88c091 LI |
808 | ;; We have read active entries, so we just delete the |
809 | ;; superfluous gunk. | |
810 | (goto-char (point-min)) | |
811 | (while (re-search-forward "^[.2-5]" nil t) | |
812 | (delete-region (match-beginning 0) | |
813 | (progn (forward-line 1) (point)))) | |
814 | (nntp-copy-to-buffer nntp-server-buffer (point-min) (point-max)) | |
5415d076 | 815 | (with-current-buffer nntp-server-buffer |
06b840e0 LI |
816 | (gnus-active-to-gnus-format |
817 | ;; Kludge to use the extended method name if you have | |
818 | ;; an extended one. | |
819 | (if (consp (gnus-info-method (car infos))) | |
820 | (gnus-info-method (car infos)) | |
821 | method) | |
822 | gnus-active-hashtb nil t)))))))) | |
1d88c091 | 823 | |
eec82323 LMI |
824 | (deffoo nntp-retrieve-groups (groups &optional server) |
825 | "Retrieve group info on GROUPS." | |
23f87bed MB |
826 | (nntp-with-open-group |
827 | nil server | |
e7719ea1 G |
828 | (when (and (nntp-find-connection-buffer nntp-server-buffer) |
829 | (with-current-buffer | |
830 | (nntp-find-connection-buffer nntp-server-buffer) | |
831 | (if (not nntp-retrieval-in-progress) | |
832 | t | |
833 | (message "Warning: Refusing to do retrieval from %s because a retrieval is already happening" | |
834 | server) | |
835 | nil))) | |
23f87bed MB |
836 | (catch 'done |
837 | (save-excursion | |
838 | ;; Erase nntp-server-buffer before nntp-inhibit-erase. | |
01c52d31 | 839 | (nntp-erase-buffer nntp-server-buffer) |
23f87bed MB |
840 | (set-buffer (nntp-find-connection-buffer nntp-server-buffer)) |
841 | ;; The first time this is run, this variable is `try'. So we | |
842 | ;; try. | |
843 | (when (eq nntp-server-list-active-group 'try) | |
844 | (nntp-try-list-active (car groups))) | |
845 | (erase-buffer) | |
846 | (let ((count 0) | |
847 | (groups groups) | |
848 | (received 0) | |
849 | (last-point (point-min)) | |
850 | (nntp-inhibit-erase t) | |
851 | (buf (nntp-find-connection-buffer nntp-server-buffer)) | |
852 | (command (if nntp-server-list-active-group | |
853 | "LIST ACTIVE" "GROUP"))) | |
854 | (while groups | |
855 | ;; Timeout may have killed the buffer. | |
856 | (unless (gnus-buffer-live-p buf) | |
857 | (nnheader-report 'nntp "Connection to %s is closed." server) | |
858 | (throw 'done nil)) | |
859 | ;; Send the command to the server. | |
860 | (nntp-send-command nil command (pop groups)) | |
861 | (incf count) | |
862 | ;; Every 400 requests we have to read the stream in | |
863 | ;; order to avoid deadlocks. | |
864 | (when (or (null groups) ;All requests have been sent. | |
865 | (zerop (% count nntp-maximum-request))) | |
866 | (nntp-accept-response) | |
867 | (while (and (gnus-buffer-live-p buf) | |
868 | (progn | |
869 | ;; Search `blue moon' in this file for the | |
870 | ;; reason why set-buffer here. | |
871 | (set-buffer buf) | |
872 | (goto-char last-point) | |
873 | ;; Count replies. | |
874 | (while (re-search-forward "^[0-9]" nil t) | |
875 | (incf received)) | |
876 | (setq last-point (point)) | |
877 | (< received count))) | |
878 | (nntp-accept-response)))) | |
879 | ||
880 | ;; Wait for the reply from the final command. | |
881 | (unless (gnus-buffer-live-p buf) | |
882 | (nnheader-report 'nntp "Connection to %s is closed." server) | |
883 | (throw 'done nil)) | |
884 | (set-buffer buf) | |
885 | (goto-char (point-max)) | |
886 | (re-search-backward "^[0-9]" nil t) | |
887 | (when (looking-at "^[23]") | |
888 | (while (and (gnus-buffer-live-p buf) | |
889 | (progn | |
890 | (set-buffer buf) | |
891 | (goto-char (point-max)) | |
892 | (if (not nntp-server-list-active-group) | |
893 | (not (re-search-backward "\r?\n" | |
894 | (- (point) 3) t)) | |
895 | (not (re-search-backward "^\\.\r?\n" | |
896 | (- (point) 4) t))))) | |
897 | (nntp-accept-response))) | |
898 | ||
899 | ;; Now all replies are received. We remove CRs. | |
900 | (unless (gnus-buffer-live-p buf) | |
901 | (nnheader-report 'nntp "Connection to %s is closed." server) | |
902 | (throw 'done nil)) | |
903 | (set-buffer buf) | |
904 | (goto-char (point-min)) | |
905 | (while (search-forward "\r" nil t) | |
906 | (replace-match "" t t)) | |
907 | ||
908 | (if (not nntp-server-list-active-group) | |
909 | (progn | |
1428d46b MB |
910 | (nntp-copy-to-buffer nntp-server-buffer |
911 | (point-min) (point-max)) | |
23f87bed MB |
912 | 'group) |
913 | ;; We have read active entries, so we just delete the | |
914 | ;; superfluous gunk. | |
915 | (goto-char (point-min)) | |
916 | (while (re-search-forward "^[.2-5]" nil t) | |
917 | (delete-region (match-beginning 0) | |
918 | (progn (forward-line 1) (point)))) | |
1428d46b | 919 | (nntp-copy-to-buffer nntp-server-buffer (point-min) (point-max)) |
23f87bed | 920 | 'active))))))) |
eec82323 LMI |
921 | |
922 | (deffoo nntp-retrieve-articles (articles &optional group server) | |
23f87bed MB |
923 | (nntp-with-open-group |
924 | group server | |
925 | (save-excursion | |
926 | (let ((number (length articles)) | |
927 | (articles articles) | |
928 | (count 0) | |
929 | (received 0) | |
930 | (last-point (point-min)) | |
931 | (buf (nntp-find-connection-buffer nntp-server-buffer)) | |
932 | (nntp-inhibit-erase t) | |
933 | (map (apply 'vector articles)) | |
934 | (point 1) | |
935 | article) | |
936 | (set-buffer buf) | |
937 | (erase-buffer) | |
938 | ;; Send ARTICLE command. | |
939 | (while (setq article (pop articles)) | |
940 | (nntp-send-command | |
941 | nil | |
942 | "ARTICLE" (if (numberp article) | |
943 | (int-to-string article) | |
944 | ;; `articles' is either a list of article numbers | |
945 | ;; or a list of article IDs. | |
946 | article)) | |
947 | (incf count) | |
948 | ;; Every 400 requests we have to read the stream in | |
949 | ;; order to avoid deadlocks. | |
950 | (when (or (null articles) ;All requests have been sent. | |
951 | (zerop (% count nntp-maximum-request))) | |
952 | (nntp-accept-response) | |
953 | (while (progn | |
954 | (set-buffer buf) | |
955 | (goto-char last-point) | |
956 | ;; Count replies. | |
957 | (while (nntp-next-result-arrived-p) | |
958 | (aset map received (cons (aref map received) (point))) | |
959 | (setq last-point (point)) | |
960 | (incf received)) | |
961 | (< received count)) | |
962 | ;; If number of headers is greater than 100, give | |
963 | ;; informative messages. | |
964 | (and (numberp nntp-large-newsgroup) | |
965 | (> number nntp-large-newsgroup) | |
966 | (zerop (% received 20)) | |
967 | (nnheader-message 6 "NNTP: Receiving articles... %d%%" | |
968 | (/ (* received 100) number))) | |
969 | (nntp-accept-response)))) | |
970 | (and (numberp nntp-large-newsgroup) | |
971 | (> number nntp-large-newsgroup) | |
972 | (nnheader-message 6 "NNTP: Receiving articles...done")) | |
973 | ||
974 | ;; Now we have all the responses. We go through the results, | |
975 | ;; wash it and copy it over to the server buffer. | |
976 | (set-buffer nntp-server-buffer) | |
977 | (erase-buffer) | |
978 | (setq last-point (point-min)) | |
979 | (mapcar | |
980 | (lambda (entry) | |
981 | (narrow-to-region | |
982 | (setq point (goto-char (point-max))) | |
983 | (progn | |
9f5e78f7 | 984 | (nnheader-insert-buffer-substring buf last-point (cdr entry)) |
23f87bed MB |
985 | (point-max))) |
986 | (setq last-point (cdr entry)) | |
987 | (nntp-decode-text) | |
988 | (widen) | |
989 | (cons (car entry) point)) | |
990 | map))))) | |
eec82323 | 991 | |
eec82323 LMI |
992 | (defun nntp-try-list-active (group) |
993 | (nntp-list-active-group group) | |
ed075cb4 | 994 | (with-current-buffer nntp-server-buffer |
eec82323 LMI |
995 | (goto-char (point-min)) |
996 | (cond ((or (eobp) | |
997 | (looking-at "5[0-9]+")) | |
998 | (setq nntp-server-list-active-group nil)) | |
999 | (t | |
1000 | (setq nntp-server-list-active-group t))))) | |
1001 | ||
1002 | (deffoo nntp-list-active-group (group &optional server) | |
16409b0b | 1003 | "Return the active info on GROUP (which can be a regexp)." |
23f87bed MB |
1004 | (nntp-with-open-group |
1005 | nil server | |
1006 | (nntp-send-command "^\\.*\r?\n" "LIST ACTIVE" group))) | |
16409b0b GM |
1007 | |
1008 | (deffoo nntp-request-group-articles (group &optional server) | |
1009 | "Return the list of existing articles in GROUP." | |
23f87bed MB |
1010 | (nntp-with-open-group |
1011 | nil server | |
1012 | (nntp-send-command "^\\.*\r?\n" "LISTGROUP" group))) | |
eec82323 LMI |
1013 | |
1014 | (deffoo nntp-request-article (article &optional group server buffer command) | |
23f87bed | 1015 | (nntp-with-open-group |
b87f32fc | 1016 | group server |
23f87bed MB |
1017 | (when (nntp-send-command-and-decode |
1018 | "\r?\n\\.\r?\n" "ARTICLE" | |
1019 | (if (numberp article) (int-to-string article) article)) | |
b87f32fc G |
1020 | (when (and buffer |
1021 | (not (equal buffer nntp-server-buffer))) | |
1022 | (with-current-buffer nntp-server-buffer | |
1023 | (copy-to-buffer buffer (point-min) (point-max)))) | |
1024 | (nntp-find-group-and-number group)))) | |
eec82323 LMI |
1025 | |
1026 | (deffoo nntp-request-head (article &optional group server) | |
23f87bed MB |
1027 | (nntp-with-open-group |
1028 | group server | |
1029 | (when (nntp-send-command | |
1030 | "\r?\n\\.\r?\n" "HEAD" | |
1031 | (if (numberp article) (int-to-string article) article)) | |
1032 | (prog1 | |
1033 | (nntp-find-group-and-number group) | |
1034 | (nntp-decode-text))))) | |
eec82323 LMI |
1035 | |
1036 | (deffoo nntp-request-body (article &optional group server) | |
23f87bed MB |
1037 | (nntp-with-open-group |
1038 | group server | |
1039 | (nntp-send-command-and-decode | |
1040 | "\r?\n\\.\r?\n" "BODY" | |
1041 | (if (numberp article) (int-to-string article) article)))) | |
eec82323 | 1042 | |
286c4fc2 | 1043 | (deffoo nntp-request-group (group &optional server dont-check info) |
e84b4b86 | 1044 | (nntp-with-open-group |
23f87bed MB |
1045 | nil server |
1046 | (when (nntp-send-command "^[245].*\n" "GROUP" group) | |
1047 | (let ((entry (nntp-find-connection-entry nntp-server-buffer))) | |
1048 | (setcar (cddr entry) group))))) | |
eec82323 LMI |
1049 | |
1050 | (deffoo nntp-close-group (group &optional server) | |
1051 | t) | |
1052 | ||
1053 | (deffoo nntp-server-opened (&optional server) | |
1054 | "Say whether a connection to SERVER has been opened." | |
1055 | (and (nnoo-current-server-p 'nntp server) | |
1056 | nntp-server-buffer | |
1057 | (gnus-buffer-live-p nntp-server-buffer) | |
1058 | (nntp-find-connection nntp-server-buffer))) | |
1059 | ||
1060 | (deffoo nntp-open-server (server &optional defs connectionless) | |
1061 | (nnheader-init-server-buffer) | |
1062 | (if (nntp-server-opened server) | |
1063 | t | |
1064 | (when (or (stringp (car defs)) | |
1065 | (numberp (car defs))) | |
1066 | (setq defs (cons (list 'nntp-port-number (car defs)) (cdr defs)))) | |
1067 | (unless (assq 'nntp-address defs) | |
1068 | (setq defs (append defs (list (list 'nntp-address server))))) | |
1069 | (nnoo-change-server 'nntp server defs) | |
20a673b2 KY |
1070 | (if connectionless |
1071 | t | |
eec82323 LMI |
1072 | (or (nntp-find-connection nntp-server-buffer) |
1073 | (nntp-open-connection nntp-server-buffer))))) | |
1074 | ||
1075 | (deffoo nntp-close-server (&optional server) | |
1076 | (nntp-possibly-change-group nil server t) | |
6748645f LMI |
1077 | (let ((process (nntp-find-connection nntp-server-buffer))) |
1078 | (while process | |
eec82323 | 1079 | (when (memq (process-status process) '(open run)) |
6748645f LMI |
1080 | (ignore-errors |
1081 | (nntp-send-string process "QUIT") | |
1082 | (unless (eq nntp-open-connection-function 'nntp-open-network-stream) | |
1083 | ;; Ok, this is evil, but when using telnet and stuff | |
1084 | ;; as the connection method, it's important that the | |
1085 | ;; QUIT command actually is sent out before we kill | |
1086 | ;; the process. | |
1087 | (sleep-for 1)))) | |
16409b0b | 1088 | (nntp-kill-buffer (process-buffer process)) |
6748645f | 1089 | (setq process (car (pop nntp-connection-alist)))) |
eec82323 LMI |
1090 | (nnoo-close-server 'nntp))) |
1091 | ||
1092 | (deffoo nntp-request-close () | |
1093 | (let (process) | |
1094 | (while (setq process (pop nntp-connection-list)) | |
1095 | (when (memq (process-status process) '(open run)) | |
eec82323 | 1096 | (ignore-errors |
6748645f LMI |
1097 | (nntp-send-string process "QUIT") |
1098 | (unless (eq nntp-open-connection-function 'nntp-open-network-stream) | |
1099 | ;; Ok, this is evil, but when using telnet and stuff | |
1100 | ;; as the connection method, it's important that the | |
1101 | ;; QUIT command actually is sent out before we kill | |
1102 | ;; the process. | |
1103 | (sleep-for 1)))) | |
16409b0b | 1104 | (nntp-kill-buffer (process-buffer process))))) |
eec82323 LMI |
1105 | |
1106 | (deffoo nntp-request-list (&optional server) | |
23f87bed MB |
1107 | (nntp-with-open-group |
1108 | nil server | |
1109 | (nntp-send-command-and-decode "\r?\n\\.\r?\n" "LIST"))) | |
eec82323 LMI |
1110 | |
1111 | (deffoo nntp-request-list-newsgroups (&optional server) | |
23f87bed MB |
1112 | (nntp-with-open-group |
1113 | nil server | |
1114 | (nntp-send-command "\r?\n\\.\r?\n" "LIST NEWSGROUPS"))) | |
eec82323 LMI |
1115 | |
1116 | (deffoo nntp-request-newgroups (date &optional server) | |
23f87bed MB |
1117 | (nntp-with-open-group |
1118 | nil server | |
ed075cb4 | 1119 | (with-current-buffer nntp-server-buffer |
23f87bed MB |
1120 | (let* ((time (date-to-time date)) |
1121 | (ls (- (cadr time) (nth 8 (decode-time time))))) | |
1122 | (cond ((< ls 0) | |
1123 | (setcar time (1- (car time))) | |
1124 | (setcar (cdr time) (+ ls 65536))) | |
1125 | ((>= ls 65536) | |
1126 | (setcar time (1+ (car time))) | |
1127 | (setcar (cdr time) (- ls 65536))) | |
1128 | (t | |
1129 | (setcar (cdr time) ls))) | |
1130 | (prog1 | |
1131 | (nntp-send-command | |
1132 | "^\\.\r?\n" "NEWGROUPS" | |
1133 | (format-time-string "%y%m%d %H%M%S" time) | |
1134 | "GMT") | |
1135 | (nntp-decode-text)))))) | |
eec82323 LMI |
1136 | |
1137 | (deffoo nntp-request-post (&optional server) | |
23f87bed MB |
1138 | (nntp-with-open-group |
1139 | nil server | |
1140 | (when (nntp-send-command "^[23].*\r?\n" "POST") | |
1141 | (let ((response (with-current-buffer nntp-server-buffer | |
1142 | nntp-process-response)) | |
1143 | server-id) | |
1144 | (when (and response | |
1145 | (string-match "^[23].*\\(<[^\t\n @<>]+@[^\t\n @<>]+>\\)" | |
1146 | response)) | |
1147 | (setq server-id (match-string 1 response)) | |
1148 | (narrow-to-region (goto-char (point-min)) | |
1149 | (if (search-forward "\n\n" nil t) | |
1150 | (1- (point)) | |
1151 | (point-max))) | |
1152 | (unless (mail-fetch-field "Message-ID") | |
1153 | (goto-char (point-min)) | |
1154 | (insert "Message-ID: " server-id "\n")) | |
1155 | (widen)) | |
1156 | (run-hooks 'nntp-prepare-post-hook) | |
1157 | (nntp-send-buffer "^[23].*\n"))))) | |
eec82323 LMI |
1158 | |
1159 | (deffoo nntp-request-type (group article) | |
1160 | 'news) | |
1161 | ||
1162 | (deffoo nntp-asynchronous-p () | |
1163 | t) | |
1164 | ||
01c52d31 | 1165 | |
eec82323 LMI |
1166 | ;;; Hooky functions. |
1167 | ||
1168 | (defun nntp-send-mode-reader () | |
1169 | "Send the MODE READER command to the nntp server. | |
1170 | This function is supposed to be called from `nntp-server-opened-hook'. | |
1171 | It will make innd servers spawn an nnrpd process to allow actual article | |
1172 | reading." | |
16409b0b | 1173 | (nntp-send-command "^.*\n" "MODE READER")) |
eec82323 | 1174 | |
c8ccffb1 | 1175 | (declare-function netrc-parse "netrc" (&optional file)) |
aa8f8277 GM |
1176 | (declare-function netrc-machine "netrc" |
1177 | (list machine &optional port defaultport)) | |
1178 | (declare-function netrc-get "netrc" (alist type)) | |
1179 | ||
6748645f | 1180 | (defun nntp-send-authinfo (&optional send-if-force) |
eec82323 | 1181 | "Send the AUTHINFO to the nntp server. |
6748645f LMI |
1182 | It will look in the \"~/.authinfo\" file for matching entries. If |
1183 | nothing suitable is found there, it will prompt for a user name | |
1184 | and a password. | |
1185 | ||
1186 | If SEND-IF-FORCE, only send authinfo to the server if the | |
1187 | .authinfo file has the FORCE token." | |
aa8f8277 | 1188 | (require 'netrc) |
01c52d31 MB |
1189 | (let* ((list (netrc-parse nntp-authinfo-file)) |
1190 | (alist (netrc-machine list nntp-address "nntp")) | |
b8e0f0cd | 1191 | (auth-info |
50fc698e KY |
1192 | (nth 0 (auth-source-search |
1193 | :max 1 | |
b63e0a68 KY |
1194 | :host (list nntp-address (nnoo-current-server 'nntp)) |
1195 | :port `("119" "nntp" ,(format "%s" nntp-port-number) | |
1196 | "563" "nntps" "snews")))) | |
b8e0f0cd | 1197 | (auth-user (plist-get auth-info :user)) |
638f517c | 1198 | (auth-force (plist-get auth-info :force)) |
b8e0f0cd G |
1199 | (auth-passwd (plist-get auth-info :secret)) |
1200 | (auth-passwd (if (functionp auth-passwd) | |
1201 | (funcall auth-passwd) | |
1202 | auth-passwd)) | |
638f517c TZ |
1203 | (force (or (netrc-get alist "force") |
1204 | nntp-authinfo-force | |
1205 | auth-force)) | |
8abf1b22 | 1206 | (user (or |
e952b711 | 1207 | ;; this is preferred to netrc-* |
3b36c17e | 1208 | auth-user |
8abf1b22 | 1209 | (netrc-get alist "login") |
e952b711 MB |
1210 | nntp-authinfo-user)) |
1211 | (passwd (or | |
1212 | ;; this is preferred to netrc-* | |
3b36c17e | 1213 | auth-passwd |
e952b711 | 1214 | (netrc-get alist "password")))) |
6748645f LMI |
1215 | (when (or (not send-if-force) |
1216 | force) | |
1217 | (unless user | |
1218 | (setq user (read-string (format "NNTP (%s) user name: " nntp-address)) | |
1219 | nntp-authinfo-user user)) | |
1220 | (unless (member user '(nil "")) | |
1221 | (nntp-send-command "^3.*\r?\n" "AUTHINFO USER" user) | |
1222 | (when t ;???Should check if AUTHINFO succeeded | |
16409b0b GM |
1223 | (nntp-send-command |
1224 | "^2.*\r?\n" "AUTHINFO PASS" | |
1225 | (or passwd | |
1226 | nntp-authinfo-password | |
1227 | (setq nntp-authinfo-password | |
23f87bed MB |
1228 | (read-passwd (format "NNTP (%s@%s) password: " |
1229 | user nntp-address)))))))))) | |
6748645f | 1230 | |
eec82323 LMI |
1231 | ;;; Internal functions. |
1232 | ||
6748645f LMI |
1233 | (defun nntp-handle-authinfo (process) |
1234 | "Take care of an authinfo response from the server." | |
1235 | (let ((last nntp-last-command)) | |
1236 | (funcall nntp-authinfo-function) | |
1237 | ;; We have to re-send the function that was interrupted by | |
1238 | ;; the authinfo request. | |
01c52d31 | 1239 | (nntp-erase-buffer nntp-server-buffer) |
6748645f LMI |
1240 | (nntp-send-string process last))) |
1241 | ||
eec82323 LMI |
1242 | (defun nntp-make-process-buffer (buffer) |
1243 | "Create a new, fresh buffer usable for nntp process connections." | |
ed075cb4 SM |
1244 | (with-current-buffer |
1245 | (generate-new-buffer | |
1246 | (format " *server %s %s %s*" | |
1247 | nntp-address nntp-port-number | |
1248 | (gnus-buffer-exists-p buffer))) | |
1428d46b | 1249 | (mm-disable-multibyte) |
eec82323 LMI |
1250 | (set (make-local-variable 'after-change-functions) nil) |
1251 | (set (make-local-variable 'nntp-process-wait-for) nil) | |
1252 | (set (make-local-variable 'nntp-process-callback) nil) | |
1253 | (set (make-local-variable 'nntp-process-to-buffer) nil) | |
1254 | (set (make-local-variable 'nntp-process-start-point) nil) | |
1255 | (set (make-local-variable 'nntp-process-decode) nil) | |
7e67562f | 1256 | (set (make-local-variable 'nntp-retrieval-in-progress) nil) |
eec82323 LMI |
1257 | (current-buffer))) |
1258 | ||
1259 | (defun nntp-open-connection (buffer) | |
1260 | "Open a connection to PORT on ADDRESS delivering output to BUFFER." | |
1261 | (run-hooks 'nntp-prepare-server-hook) | |
1262 | (let* ((pbuffer (nntp-make-process-buffer buffer)) | |
6748645f LMI |
1263 | (timer |
1264 | (and nntp-connection-timeout | |
01c52d31 | 1265 | (run-at-time |
6748645f LMI |
1266 | nntp-connection-timeout nil |
1267 | `(lambda () | |
16409b0b | 1268 | (nntp-kill-buffer ,pbuffer))))) |
eec82323 | 1269 | (process |
ed797193 | 1270 | (condition-case err |
89b163db G |
1271 | (let ((coding-system-for-read 'binary) |
1272 | (coding-system-for-write 'binary) | |
e742e117 CY |
1273 | (map '((nntp-open-network-stream network) |
1274 | (network-only plain) ; compat | |
1275 | (nntp-open-plain-stream plain) | |
ed797193 G |
1276 | (nntp-open-ssl-stream tls) |
1277 | (nntp-open-tls-stream tls)))) | |
1278 | (if (assoc nntp-open-connection-function map) | |
f2eefd24 CY |
1279 | (open-protocol-stream |
1280 | "nntpd" pbuffer nntp-address nntp-port-number | |
e742e117 | 1281 | :type (cadr (assoc nntp-open-connection-function map)) |
f2eefd24 | 1282 | :end-of-command "^\\([2345]\\|[.]\\).*\n" |
b9989bfa | 1283 | :capability-command "HELP\r\n" |
f2eefd24 CY |
1284 | :success "^3" |
1285 | :starttls-function | |
1286 | (lambda (capabilities) | |
1287 | (if (not (string-match "STARTTLS" capabilities)) | |
1288 | nil | |
1289 | "STARTTLS\r\n"))) | |
ed797193 G |
1290 | (funcall nntp-open-connection-function pbuffer))) |
1291 | (error | |
f2eefd24 | 1292 | (nnheader-report 'nntp ">>> %s" err)) |
2eebe218 | 1293 | (quit |
01c52d31 | 1294 | (message "Quit opening connection to %s" nntp-address) |
2eebe218 DL |
1295 | (nntp-kill-buffer pbuffer) |
1296 | (signal 'quit nil) | |
1297 | nil)))) | |
6748645f LMI |
1298 | (when timer |
1299 | (nnheader-cancel-timer timer)) | |
f2eefd24 CY |
1300 | (when (and process |
1301 | (not (memq (process-status process) '(open run)))) | |
02e8d7e9 LI |
1302 | (with-current-buffer pbuffer |
1303 | (goto-char (point-min)) | |
1304 | (nnheader-report 'nntp "Error when connecting: %s" | |
1305 | (buffer-substring (point) (line-end-position)))) | |
f2eefd24 | 1306 | (setq process nil)) |
23f87bed MB |
1307 | (unless process |
1308 | (nntp-kill-buffer pbuffer)) | |
6748645f LMI |
1309 | (when (and (buffer-name pbuffer) |
1310 | process) | |
7887e229 KY |
1311 | (when (and (fboundp 'set-network-process-option) ;; Unavailable in XEmacs. |
1312 | (fboundp 'process-type) ;; Emacs 22 doesn't provide it. | |
68b5d5ee SM |
1313 | (eq (process-type process) 'network)) |
1314 | ;; Use TCP-keepalive so that connections that pass through a NAT router | |
1315 | ;; don't hang when left idle. | |
1316 | (set-network-process-option process :keepalive t)) | |
4a43ee9b | 1317 | (gnus-set-process-query-on-exit-flag process nil) |
23f87bed MB |
1318 | (if (and (nntp-wait-for process "^2.*\n" buffer nil t) |
1319 | (memq (process-status process) '(open run))) | |
eec82323 LMI |
1320 | (prog1 |
1321 | (caar (push (list process buffer nil) nntp-connection-alist)) | |
1322 | (push process nntp-connection-list) | |
ed075cb4 | 1323 | (with-current-buffer pbuffer |
eec82323 LMI |
1324 | (nntp-read-server-type) |
1325 | (erase-buffer) | |
1326 | (set-buffer nntp-server-buffer) | |
1327 | (let ((nnheader-callback-function nil)) | |
6748645f LMI |
1328 | (run-hooks 'nntp-server-opened-hook) |
1329 | (nntp-send-authinfo t)))) | |
16409b0b | 1330 | (nntp-kill-buffer (process-buffer process)) |
eec82323 LMI |
1331 | nil)))) |
1332 | ||
eec82323 LMI |
1333 | (defun nntp-read-server-type () |
1334 | "Find out what the name of the server we have connected to is." | |
1335 | ;; Wait for the status string to arrive. | |
1336 | (setq nntp-server-type (buffer-string)) | |
01c52d31 | 1337 | (let ((case-fold-search t)) |
eec82323 | 1338 | ;; Run server-specific commands. |
01c52d31 | 1339 | (dolist (entry nntp-server-action-alist) |
eec82323 LMI |
1340 | (when (string-match (car entry) nntp-server-type) |
1341 | (if (and (listp (cadr entry)) | |
1342 | (not (eq 'lambda (caadr entry)))) | |
1343 | (eval (cadr entry)) | |
1344 | (funcall (cadr entry))))))) | |
1345 | ||
16409b0b | 1346 | (defun nntp-async-wait (process wait-for buffer decode callback) |
ed075cb4 | 1347 | (with-current-buffer (process-buffer process) |
16409b0b GM |
1348 | (unless nntp-inside-change-function |
1349 | (erase-buffer)) | |
1350 | (setq nntp-process-wait-for wait-for | |
1351 | nntp-process-to-buffer buffer | |
1352 | nntp-process-decode decode | |
1353 | nntp-process-callback callback | |
1354 | nntp-process-start-point (point-max)) | |
6b8382e4 | 1355 | (setq after-change-functions '(nntp-after-change-function)))) |
16409b0b | 1356 | |
16409b0b GM |
1357 | (defun nntp-async-stop (proc) |
1358 | (setq nntp-async-process-list (delq proc nntp-async-process-list)) | |
1359 | (when (and nntp-async-timer (not nntp-async-process-list)) | |
1360 | (nnheader-cancel-timer nntp-async-timer) | |
1361 | (setq nntp-async-timer nil))) | |
1362 | ||
1363 | (defun nntp-after-change-function (beg end len) | |
1364 | (unwind-protect | |
1365 | ;; we only care about insertions at eob | |
1366 | (when (and (eq 0 len) (eq (point-max) end)) | |
1367 | (save-match-data | |
1368 | (let ((proc (get-buffer-process (current-buffer)))) | |
1369 | (when proc | |
1370 | (nntp-async-trigger proc))))) | |
1371 | ;; any throw from after-change-functions will leave it | |
1372 | ;; set to nil. so we reset it here, if necessary. | |
1373 | (when quit-flag | |
1374 | (setq after-change-functions '(nntp-after-change-function))))) | |
1375 | ||
1376 | (defun nntp-async-trigger (process) | |
ed075cb4 | 1377 | (with-current-buffer (process-buffer process) |
16409b0b GM |
1378 | (when nntp-process-callback |
1379 | ;; do we have an error message? | |
1380 | (goto-char nntp-process-start-point) | |
1381 | (if (memq (following-char) '(?4 ?5)) | |
1382 | ;; wants credentials? | |
1383 | (if (looking-at "480") | |
2eebe218 | 1384 | (nntp-handle-authinfo process) |
16409b0b GM |
1385 | ;; report error message. |
1386 | (nntp-snarf-error-message) | |
1387 | (nntp-do-callback nil)) | |
1388 | ||
1389 | ;; got what we expect? | |
1390 | (goto-char (point-max)) | |
1391 | (when (re-search-backward | |
1392 | nntp-process-wait-for nntp-process-start-point t) | |
23f87bed MB |
1393 | (let ((response (match-string 0))) |
1394 | (with-current-buffer nntp-server-buffer | |
1395 | (setq nntp-process-response response))) | |
16409b0b GM |
1396 | (nntp-async-stop process) |
1397 | ;; convert it. | |
6748645f | 1398 | (when (gnus-buffer-exists-p nntp-process-to-buffer) |
16409b0b GM |
1399 | (let ((buf (current-buffer)) |
1400 | (start nntp-process-start-point) | |
1401 | (decode nntp-process-decode)) | |
ed075cb4 | 1402 | (with-current-buffer nntp-process-to-buffer |
eec82323 | 1403 | (goto-char (point-max)) |
16409b0b GM |
1404 | (save-restriction |
1405 | (narrow-to-region (point) (point)) | |
9f5e78f7 | 1406 | (nnheader-insert-buffer-substring buf start) |
16409b0b GM |
1407 | (when decode |
1408 | (nntp-decode-text)))))) | |
1409 | ;; report it. | |
1410 | (goto-char (point-max)) | |
1411 | (nntp-do-callback | |
1412 | (buffer-name (get-buffer nntp-process-to-buffer)))))))) | |
1413 | ||
1414 | (defun nntp-do-callback (arg) | |
1415 | (let ((callback nntp-process-callback) | |
1416 | (nntp-inside-change-function t)) | |
1417 | (setq nntp-process-callback nil) | |
1418 | (funcall callback arg))) | |
eec82323 LMI |
1419 | |
1420 | (defun nntp-snarf-error-message () | |
1421 | "Save the error message in the current buffer." | |
1422 | (let ((message (buffer-string))) | |
1423 | (while (string-match "[\r\n]+" message) | |
1424 | (setq message (replace-match " " t t message))) | |
04db63bc | 1425 | (nnheader-report 'nntp "%s" message) |
eec82323 LMI |
1426 | message)) |
1427 | ||
23f87bed | 1428 | (defun nntp-accept-process-output (process) |
eec82323 | 1429 | "Wait for output from PROCESS and message some dots." |
01c52d31 MB |
1430 | (with-current-buffer (or (nntp-find-connection-buffer nntp-server-buffer) |
1431 | nntp-server-buffer) | |
c7279817 | 1432 | (let ((len (/ (buffer-size) 1024)) |
eec82323 LMI |
1433 | message-log-max) |
1434 | (unless (< len 10) | |
1435 | (setq nntp-have-messaged t) | |
1436 | (nnheader-message 7 "nntp read: %dk" len))) | |
01c52d31 MB |
1437 | (prog1 |
1438 | (nnheader-accept-process-output process) | |
1439 | ;; accept-process-output may update status of process to indicate | |
1440 | ;; that the server has closed the connection. This MUST be | |
1441 | ;; handled here as the buffer restored by the save-excursion may | |
1442 | ;; be the process's former output buffer (i.e. now killed) | |
1443 | (or (and process | |
1444 | (memq (process-status process) '(open run))) | |
1445 | (nntp-report "Server closed connection"))))) | |
eec82323 LMI |
1446 | |
1447 | (defun nntp-accept-response () | |
1448 | "Wait for output from the process that outputs to BUFFER." | |
1449 | (nntp-accept-process-output (nntp-find-connection nntp-server-buffer))) | |
1450 | ||
1451 | (defun nntp-possibly-change-group (group server &optional connectionless) | |
1452 | (let ((nnheader-callback-function nil)) | |
1453 | (when server | |
1454 | (or (nntp-server-opened server) | |
1455 | (nntp-open-server server nil connectionless))) | |
1456 | ||
1457 | (unless connectionless | |
1458 | (or (nntp-find-connection nntp-server-buffer) | |
1459 | (nntp-open-connection nntp-server-buffer)))) | |
1460 | ||
1461 | (when group | |
1462 | (let ((entry (nntp-find-connection-entry nntp-server-buffer))) | |
23f87bed MB |
1463 | (cond ((not entry) |
1464 | (nntp-report "Server closed connection")) | |
1465 | ((not (equal group (caddr entry))) | |
ed075cb4 | 1466 | (with-current-buffer (process-buffer (car entry)) |
23f87bed MB |
1467 | (erase-buffer) |
1468 | (nntp-send-command "^[245].*\n" "GROUP" group) | |
1469 | (setcar (cddr entry) group) | |
1470 | (erase-buffer) | |
01c52d31 | 1471 | (nntp-erase-buffer nntp-server-buffer))))))) |
eec82323 LMI |
1472 | |
1473 | (defun nntp-decode-text (&optional cr-only) | |
1474 | "Decode the text in the current buffer." | |
1475 | (goto-char (point-min)) | |
1476 | (while (search-forward "\r" nil t) | |
1477 | (delete-char -1)) | |
1478 | (unless cr-only | |
1479 | ;; Remove trailing ".\n" end-of-transfer marker. | |
1480 | (goto-char (point-max)) | |
1481 | (forward-line -1) | |
1482 | (when (looking-at ".\n") | |
1483 | (delete-char 2)) | |
1484 | ;; Delete status line. | |
1485 | (goto-char (point-min)) | |
2eebe218 DL |
1486 | (while (looking-at "[1-5][0-9][0-9] .*\n") |
1487 | ;; For some unknown reason, there is more than one status line. | |
1488 | (delete-region (point) (progn (forward-line 1) (point)))) | |
eec82323 LMI |
1489 | ;; Remove "." -> ".." encoding. |
1490 | (while (search-forward "\n.." nil t) | |
1491 | (delete-char -1)))) | |
1492 | ||
1493 | (defun nntp-encode-text () | |
1494 | "Encode the text in the current buffer." | |
1495 | (save-excursion | |
1496 | ;; Replace "." at beginning of line with "..". | |
1497 | (goto-char (point-min)) | |
1498 | (while (re-search-forward "^\\." nil t) | |
1499 | (insert ".")) | |
1500 | (goto-char (point-max)) | |
1501 | ;; Insert newline at the end of the buffer. | |
1502 | (unless (bolp) | |
1503 | (insert "\n")) | |
1504 | ;; Insert `.' at end of buffer (end of text mark). | |
1505 | (goto-char (point-max)) | |
45926d06 RS |
1506 | (insert ".\n") |
1507 | (goto-char (point-min)) | |
1508 | (while (not (eobp)) | |
1509 | (end-of-line) | |
1510 | (delete-char 1) | |
1511 | (insert nntp-end-of-line)))) | |
eec82323 LMI |
1512 | |
1513 | (defun nntp-retrieve-headers-with-xover (articles &optional fetch-old) | |
1514 | (set-buffer nntp-server-buffer) | |
1515 | (erase-buffer) | |
1516 | (cond | |
1517 | ||
1518 | ;; This server does not talk NOV. | |
1519 | ((not nntp-server-xover) | |
1520 | nil) | |
1521 | ||
1522 | ;; We don't care about gaps. | |
1523 | ((or (not nntp-nov-gap) | |
1524 | fetch-old) | |
1525 | (nntp-send-xover-command | |
1526 | (if fetch-old | |
1527 | (if (numberp fetch-old) | |
1528 | (max 1 (- (car articles) fetch-old)) | |
1529 | 1) | |
1530 | (car articles)) | |
1531 | (car (last articles)) 'wait) | |
1532 | ||
1533 | (goto-char (point-min)) | |
16409b0b | 1534 | (when (looking-at "[1-5][0-9][0-9] .*\n") |
eec82323 LMI |
1535 | (delete-region (point) (progn (forward-line 1) (point)))) |
1536 | (while (search-forward "\r" nil t) | |
1537 | (replace-match "" t t)) | |
1538 | (goto-char (point-max)) | |
1539 | (forward-line -1) | |
1540 | (when (looking-at "\\.") | |
1541 | (delete-region (point) (progn (forward-line 1) (point))))) | |
1542 | ||
1543 | ;; We do it the hard way. For each gap, an XOVER command is sent | |
1544 | ;; to the server. We do not wait for a reply from the server, we | |
1545 | ;; just send them off as fast as we can. That means that we have | |
1546 | ;; to count the number of responses we get back to find out when we | |
1547 | ;; have gotten all we asked for. | |
1548 | ((numberp nntp-nov-gap) | |
1549 | (let ((count 0) | |
1550 | (received 0) | |
16409b0b GM |
1551 | last-point |
1552 | in-process-buffer-p | |
eec82323 | 1553 | (buf nntp-server-buffer) |
16409b0b | 1554 | (process-buffer (nntp-find-connection-buffer nntp-server-buffer)) |
23f87bed | 1555 | first last status) |
eec82323 LMI |
1556 | ;; We have to check `nntp-server-xover'. If it gets set to nil, |
1557 | ;; that means that the server does not understand XOVER, but we | |
1558 | ;; won't know that until we try. | |
1559 | (while (and nntp-server-xover articles) | |
1560 | (setq first (car articles)) | |
1561 | ;; Search forward until we find a gap, or until we run out of | |
1562 | ;; articles. | |
1563 | (while (and (cdr articles) | |
1564 | (< (- (nth 1 articles) (car articles)) nntp-nov-gap)) | |
1565 | (setq articles (cdr articles))) | |
1566 | ||
16409b0b | 1567 | (setq in-process-buffer-p (stringp nntp-server-xover)) |
23f87bed MB |
1568 | (nntp-send-xover-command first (setq last (car articles))) |
1569 | (setq articles (cdr articles)) | |
a1506d29 | 1570 | |
16409b0b GM |
1571 | (when (and nntp-server-xover in-process-buffer-p) |
1572 | ;; Don't count tried request. | |
1573 | (setq count (1+ count)) | |
a1506d29 | 1574 | |
eec82323 LMI |
1575 | ;; Every 400 requests we have to read the stream in |
1576 | ;; order to avoid deadlocks. | |
1577 | (when (or (null articles) ;All requests have been sent. | |
23f87bed | 1578 | (= 1 (% count nntp-maximum-request))) |
16409b0b GM |
1579 | |
1580 | (nntp-accept-response) | |
1581 | ;; On some Emacs versions the preceding function has a | |
1582 | ;; tendency to change the buffer. Perhaps. It's quite | |
1583 | ;; difficult to reproduce, because it only seems to happen | |
1584 | ;; once in a blue moon. | |
1585 | (set-buffer process-buffer) | |
eec82323 | 1586 | (while (progn |
16409b0b | 1587 | (goto-char (or last-point (point-min))) |
eec82323 | 1588 | ;; Count replies. |
23f87bed MB |
1589 | (while (re-search-forward "^\\([0-9][0-9][0-9]\\) .*\n" |
1590 | nil t) | |
1591 | (incf received) | |
1592 | (setq status (match-string 1)) | |
1593 | (if (string-match "^[45]" status) | |
1594 | (setq status 'error) | |
1595 | (setq status 'ok))) | |
eec82323 | 1596 | (setq last-point (point)) |
23f87bed MB |
1597 | (or (< received count) |
1598 | (if (eq status 'error) | |
1599 | nil | |
1600 | ;; I haven't started reading the final response | |
1601 | (progn | |
1602 | (goto-char (point-max)) | |
1603 | (forward-line -1) | |
1604 | (not (looking-at "^\\.\r?\n")))))) | |
1605 | ;; I haven't read the end of the final response | |
16409b0b | 1606 | (nntp-accept-response) |
23f87bed MB |
1607 | (set-buffer process-buffer)))) |
1608 | ||
1609 | ;; Some nntp servers seem to have an extension to the XOVER | |
1610 | ;; extension. On these servers, requesting an article range | |
97610156 | 1611 | ;; preceding the active range does not return an error as |
23f87bed MB |
1612 | ;; specified in the RFC. What we instead get is the NOV entry |
1613 | ;; for the first available article. Obviously, a client can | |
1614 | ;; use that entry to avoid making unnecessary requests. The | |
1615 | ;; only problem is for a client that assumes that the response | |
40ba43b4 | 1616 | ;; will always be within the requested range. For such a |
23f87bed MB |
1617 | ;; client, we can get N copies of the same entry (one for each |
1618 | ;; XOVER command sent to the server). | |
1619 | ||
1620 | (when (<= count 1) | |
1621 | (goto-char (point-min)) | |
1622 | (when (re-search-forward "^[0-9][0-9][0-9] .*\n\\([0-9]+\\)" nil t) | |
e9bd5782 | 1623 | (let ((low-limit (string-to-number |
e84b4b86 | 1624 | (buffer-substring (match-beginning 1) |
23f87bed MB |
1625 | (match-end 1))))) |
1626 | (while (and articles (<= (car articles) low-limit)) | |
1627 | (setq articles (cdr articles)))))) | |
1628 | (set-buffer buf)) | |
eec82323 LMI |
1629 | |
1630 | (when nntp-server-xover | |
16409b0b | 1631 | (when in-process-buffer-p |
16409b0b GM |
1632 | (set-buffer buf) |
1633 | (goto-char (point-max)) | |
9f5e78f7 | 1634 | (nnheader-insert-buffer-substring process-buffer) |
16409b0b GM |
1635 | (set-buffer process-buffer) |
1636 | (erase-buffer) | |
1637 | (set-buffer buf)) | |
eec82323 LMI |
1638 | |
1639 | ;; We remove any "." lines and status lines. | |
1640 | (goto-char (point-min)) | |
1641 | (while (search-forward "\r" nil t) | |
1642 | (delete-char -1)) | |
1643 | (goto-char (point-min)) | |
1644 | (delete-matching-lines "^\\.$\\|^[1-5][0-9][0-9] ") | |
eec82323 LMI |
1645 | t)))) |
1646 | ||
1647 | nntp-server-xover) | |
1648 | ||
1649 | (defun nntp-send-xover-command (beg end &optional wait-for-reply) | |
1650 | "Send the XOVER command to the server." | |
1651 | (let ((range (format "%d-%d" beg end)) | |
1652 | (nntp-inhibit-erase t)) | |
1653 | (if (stringp nntp-server-xover) | |
1654 | ;; If `nntp-server-xover' is a string, then we just send this | |
1655 | ;; command. | |
1656 | (if wait-for-reply | |
1657 | (nntp-send-command-nodelete | |
1658 | "\r?\n\\.\r?\n" nntp-server-xover range) | |
1659 | ;; We do not wait for the reply. | |
16409b0b | 1660 | (nntp-send-command-nodelete nil nntp-server-xover range)) |
eec82323 LMI |
1661 | (let ((commands nntp-xover-commands)) |
1662 | ;; `nntp-xover-commands' is a list of possible XOVER commands. | |
1663 | ;; We try them all until we get at positive response. | |
1664 | (while (and commands (eq nntp-server-xover 'try)) | |
1665 | (nntp-send-command-nodelete "\r?\n\\.\r?\n" (car commands) range) | |
ed075cb4 | 1666 | (with-current-buffer nntp-server-buffer |
eec82323 LMI |
1667 | (goto-char (point-min)) |
1668 | (and (looking-at "[23]") ; No error message. | |
1669 | ;; We also have to look at the lines. Some buggy | |
1670 | ;; servers give back simple lines with just the | |
1671 | ;; article number. How... helpful. | |
1672 | (progn | |
1673 | (forward-line 1) | |
5cedca8d MB |
1674 | ;; More text after number, or a dot. |
1675 | (looking-at "[0-9]+\t...\\|\\.\r?\n")) | |
eec82323 LMI |
1676 | (setq nntp-server-xover (car commands)))) |
1677 | (setq commands (cdr commands))) | |
1678 | ;; If none of the commands worked, we disable XOVER. | |
1679 | (when (eq nntp-server-xover 'try) | |
01c52d31 MB |
1680 | (nntp-erase-buffer nntp-server-buffer) |
1681 | (setq nntp-server-xover nil)) | |
23f87bed | 1682 | nntp-server-xover)))) |
eec82323 | 1683 | |
23f87bed MB |
1684 | (defun nntp-find-group-and-number (&optional group) |
1685 | (save-excursion | |
1686 | (save-restriction | |
ed075cb4 | 1687 | ;; FIXME: This is REALLY FISHY: set-buffer after save-restriction?!? |
23f87bed MB |
1688 | (set-buffer nntp-server-buffer) |
1689 | (narrow-to-region (goto-char (point-min)) | |
1690 | (or (search-forward "\n\n" nil t) (point-max))) | |
1691 | (goto-char (point-min)) | |
1692 | ;; We first find the number by looking at the status line. | |
1693 | (let ((number (and (looking-at "2[0-9][0-9] +\\([0-9]+\\) ") | |
e9bd5782 | 1694 | (string-to-number |
23f87bed MB |
1695 | (buffer-substring (match-beginning 1) |
1696 | (match-end 1))))) | |
1697 | newsgroups xref) | |
1698 | (and number (zerop number) (setq number nil)) | |
1699 | (if number | |
1700 | ;; Then we find the group name. | |
1701 | (setq group | |
1702 | (cond | |
1703 | ;; If there is only one group in the Newsgroups | |
1704 | ;; header, then it seems quite likely that this | |
1705 | ;; article comes from that group, I'd say. | |
1706 | ((and (setq newsgroups | |
1707 | (mail-fetch-field "newsgroups")) | |
1708 | (not (string-match "," newsgroups))) | |
1709 | newsgroups) | |
1710 | ;; If there is more than one group in the | |
1711 | ;; Newsgroups header, then the Xref header should | |
1712 | ;; be filled out. We hazard a guess that the group | |
1713 | ;; that has this article number in the Xref header | |
1714 | ;; is the one we are looking for. This might very | |
1715 | ;; well be wrong if this article happens to have | |
1716 | ;; the same number in several groups, but that's | |
1717 | ;; life. | |
1718 | ((and (setq xref (mail-fetch-field "xref")) | |
1719 | number | |
1720 | (string-match | |
1721 | (format "\\([^ :]+\\):%d" number) xref)) | |
1722 | (match-string 1 xref)) | |
1723 | (t ""))) | |
1724 | (cond | |
37cc095b MB |
1725 | ((and (not nntp-xref-number-is-evil) |
1726 | (setq xref (mail-fetch-field "xref")) | |
23f87bed MB |
1727 | (string-match |
1728 | (if group | |
1729 | (concat "\\(" (regexp-quote group) "\\):\\([0-9]+\\)") | |
1730 | "\\([^ :]+\\):\\([0-9]+\\)") | |
1731 | xref)) | |
1732 | (setq group (match-string 1 xref) | |
e9bd5782 | 1733 | number (string-to-number (match-string 2 xref)))) |
23f87bed MB |
1734 | ((and (setq newsgroups |
1735 | (mail-fetch-field "newsgroups")) | |
1736 | (not (string-match "," newsgroups))) | |
1737 | (setq group newsgroups)) | |
1738 | (group) | |
1739 | (t (setq group "")))) | |
1740 | (when (string-match "\r" group) | |
1741 | (setq group (substring group 0 (match-beginning 0)))) | |
1742 | (cons group number))))) | |
eec82323 LMI |
1743 | |
1744 | (defun nntp-wait-for-string (regexp) | |
1745 | "Wait until string arrives in the buffer." | |
23f87bed MB |
1746 | (let ((buf (current-buffer)) |
1747 | proc) | |
eec82323 | 1748 | (goto-char (point-min)) |
23f87bed MB |
1749 | (while (and (setq proc (get-buffer-process buf)) |
1750 | (memq (process-status proc) '(open run)) | |
1751 | (not (re-search-forward regexp nil t))) | |
d832b437 | 1752 | (accept-process-output proc 0.1) |
eec82323 LMI |
1753 | (set-buffer buf) |
1754 | (goto-char (point-min))))) | |
1755 | ||
23f87bed MB |
1756 | |
1757 | ;; ========================================================================== | |
1758 | ;; Obsolete nntp-open-* connection methods -- drv | |
1759 | ;; ========================================================================== | |
1760 | ||
1761 | (defvoo nntp-open-telnet-envuser nil | |
1762 | "*If non-nil, telnet session (client and server both) will support the ENVIRON option and not prompt for login name.") | |
1763 | ||
1764 | (defvoo nntp-telnet-shell-prompt "bash\\|\$ *\r?$\\|> *\r?" | |
1765 | "*Regular expression to match the shell prompt on the remote machine.") | |
1766 | ||
1767 | (defvoo nntp-rlogin-program "rsh" | |
1768 | "*Program used to log in on remote machines. | |
1769 | The default is \"rsh\", but \"ssh\" is a popular alternative.") | |
1770 | ||
1771 | (defvoo nntp-rlogin-parameters '("telnet" "-8" "${NNTPSERVER:=news}" "nntp") | |
1772 | "*Parameters to `nntp-open-rlogin'. | |
1773 | That function may be used as `nntp-open-connection-function'. In that | |
1774 | case, this list will be used as the parameter list given to rsh.") | |
1775 | ||
1776 | (defvoo nntp-rlogin-user-name nil | |
1777 | "*User name on remote system when using the rlogin connect method.") | |
1778 | ||
1779 | (defvoo nntp-telnet-parameters | |
1780 | '("exec" "telnet" "-8" "${NNTPSERVER:=news}" "nntp") | |
1781 | "*Parameters to `nntp-open-telnet'. | |
1782 | That function may be used as `nntp-open-connection-function'. In that | |
1783 | case, this list will be executed as a command after logging in | |
1784 | via telnet.") | |
1785 | ||
1786 | (defvoo nntp-telnet-user-name nil | |
1787 | "User name to log in via telnet with.") | |
1788 | ||
1789 | (defvoo nntp-telnet-passwd nil | |
1790 | "Password to use to log in via telnet with.") | |
1791 | ||
990e2c2f SM |
1792 | (defun nntp-service-to-port (svc) |
1793 | (cond | |
1794 | ((integerp svc) (number-to-string svc)) | |
49b196a5 | 1795 | ((string-match "\\`[0-9]+\\'" svc) svc) |
990e2c2f SM |
1796 | (t |
1797 | (with-temp-buffer | |
1798 | (ignore-errors (insert-file-contents "/etc/services")) | |
1799 | (goto-char (point-min)) | |
1800 | (if (re-search-forward (concat "^" (regexp-quote svc) | |
49b196a5 | 1801 | "[ \t]+\\([0-9]+\\)/tcp")) |
990e2c2f SM |
1802 | (match-string 1) |
1803 | svc))))) | |
1804 | ||
eec82323 | 1805 | (defun nntp-open-telnet (buffer) |
990e2c2f | 1806 | (with-current-buffer buffer |
eec82323 | 1807 | (erase-buffer) |
a8151ef7 LMI |
1808 | (let ((proc (apply |
1809 | 'start-process | |
1810 | "nntpd" buffer nntp-telnet-command nntp-telnet-switches)) | |
eec82323 LMI |
1811 | (case-fold-search t)) |
1812 | (when (memq (process-status proc) '(open run)) | |
2eebe218 | 1813 | (nntp-wait-for-string "^r?telnet") |
eec82323 | 1814 | (process-send-string proc "set escape \^X\n") |
6748645f LMI |
1815 | (cond |
1816 | ((and nntp-open-telnet-envuser nntp-telnet-user-name) | |
1817 | (process-send-string proc (concat "open " "-l" nntp-telnet-user-name | |
1818 | nntp-address "\n"))) | |
1819 | (t | |
1820 | (process-send-string proc (concat "open " nntp-address "\n")))) | |
1821 | (cond | |
1822 | ((not nntp-open-telnet-envuser) | |
1823 | (nntp-wait-for-string "^\r*.?login:") | |
1824 | (process-send-string | |
1825 | proc (concat | |
1826 | (or nntp-telnet-user-name | |
1827 | (setq nntp-telnet-user-name (read-string "login: "))) | |
1828 | "\n")))) | |
eec82323 LMI |
1829 | (nntp-wait-for-string "^\r*.?password:") |
1830 | (process-send-string | |
1831 | proc (concat | |
1832 | (or nntp-telnet-passwd | |
1833 | (setq nntp-telnet-passwd | |
23f87bed | 1834 | (read-passwd "Password: "))) |
eec82323 | 1835 | "\n")) |
6748645f | 1836 | (nntp-wait-for-string nntp-telnet-shell-prompt) |
eec82323 LMI |
1837 | (process-send-string |
1838 | proc (concat (mapconcat 'identity nntp-telnet-parameters " ") "\n")) | |
6748645f | 1839 | (nntp-wait-for-string "^\r*20[01]") |
eec82323 LMI |
1840 | (beginning-of-line) |
1841 | (delete-region (point-min) (point)) | |
1842 | (process-send-string proc "\^]") | |
2eebe218 | 1843 | (nntp-wait-for-string "^r?telnet") |
eec82323 LMI |
1844 | (process-send-string proc "mode character\n") |
1845 | (accept-process-output proc 1) | |
1846 | (sit-for 1) | |
1847 | (goto-char (point-min)) | |
1848 | (forward-line 1) | |
1849 | (delete-region (point) (point-max))) | |
1850 | proc))) | |
1851 | ||
1852 | (defun nntp-open-rlogin (buffer) | |
1853 | "Open a connection to SERVER using rsh." | |
1854 | (let ((proc (if nntp-rlogin-user-name | |
6748645f LMI |
1855 | (apply 'start-process |
1856 | "nntpd" buffer nntp-rlogin-program | |
1857 | nntp-address "-l" nntp-rlogin-user-name | |
1858 | nntp-rlogin-parameters) | |
1859 | (apply 'start-process | |
1860 | "nntpd" buffer nntp-rlogin-program nntp-address | |
1861 | nntp-rlogin-parameters)))) | |
990e2c2f | 1862 | (with-current-buffer buffer |
6748645f LMI |
1863 | (nntp-wait-for-string "^\r*20[01]") |
1864 | (beginning-of-line) | |
1865 | (delete-region (point-min) (point)) | |
1866 | proc))) | |
eec82323 | 1867 | |
23f87bed MB |
1868 | |
1869 | ;; ========================================================================== | |
1870 | ;; Replacements for the nntp-open-* functions -- drv | |
1871 | ;; ========================================================================== | |
1872 | ||
1873 | (defun nntp-open-telnet-stream (buffer) | |
1874 | "Open a nntp connection by telnet'ing the news server. | |
990e2c2f | 1875 | `nntp-open-netcat-stream' is recommended in place of this function |
ed075cb4 | 1876 | because it is more reliable. |
23f87bed MB |
1877 | |
1878 | Please refer to the following variables to customize the connection: | |
1879 | - `nntp-pre-command', | |
1880 | - `nntp-telnet-command', | |
1881 | - `nntp-telnet-switches', | |
1882 | - `nntp-address', | |
1883 | - `nntp-port-number', | |
1884 | - `nntp-end-of-line'." | |
1885 | (let ((command `(,nntp-telnet-command | |
1886 | ,@nntp-telnet-switches | |
9b3ebcb6 | 1887 | ,nntp-address |
990e2c2f | 1888 | ,(nntp-service-to-port nntp-port-number))) |
23f87bed MB |
1889 | proc) |
1890 | (and nntp-pre-command | |
1891 | (push nntp-pre-command command)) | |
1892 | (setq proc (apply 'start-process "nntpd" buffer command)) | |
ed075cb4 | 1893 | (with-current-buffer buffer |
23f87bed MB |
1894 | (nntp-wait-for-string "^\r*20[01]") |
1895 | (beginning-of-line) | |
1896 | (delete-region (point-min) (point)) | |
1897 | proc))) | |
1898 | ||
1899 | (defun nntp-open-via-rlogin-and-telnet (buffer) | |
1900 | "Open a connection to an nntp server through an intermediate host. | |
1901 | First rlogin to the remote host, and then telnet the real news server | |
1902 | from there. | |
ed075cb4 SM |
1903 | `nntp-open-via-rlogin-and-netcat' is recommended in place of this function |
1904 | because it is more reliable. | |
23f87bed MB |
1905 | |
1906 | Please refer to the following variables to customize the connection: | |
1907 | - `nntp-pre-command', | |
1908 | - `nntp-via-rlogin-command', | |
1909 | - `nntp-via-rlogin-command-switches', | |
1910 | - `nntp-via-user-name', | |
1911 | - `nntp-via-address', | |
1912 | - `nntp-telnet-command', | |
1913 | - `nntp-telnet-switches', | |
1914 | - `nntp-address', | |
1915 | - `nntp-port-number', | |
1916 | - `nntp-end-of-line'." | |
1917 | (let ((command `(,nntp-via-address | |
1918 | ,nntp-telnet-command | |
1919 | ,@nntp-telnet-switches)) | |
1920 | proc) | |
1921 | (when nntp-via-user-name | |
1922 | (setq command `("-l" ,nntp-via-user-name ,@command))) | |
1923 | (when nntp-via-rlogin-command-switches | |
1924 | (setq command (append nntp-via-rlogin-command-switches command))) | |
1925 | (push nntp-via-rlogin-command command) | |
1926 | (and nntp-pre-command | |
1927 | (push nntp-pre-command command)) | |
1928 | (setq proc (apply 'start-process "nntpd" buffer command)) | |
ed075cb4 | 1929 | (with-current-buffer buffer |
23f87bed | 1930 | (nntp-wait-for-string "^r?telnet") |
9b3ebcb6 | 1931 | (process-send-string proc (concat "open " nntp-address " " |
990e2c2f | 1932 | (nntp-service-to-port nntp-port-number) |
9b3ebcb6 | 1933 | "\n")) |
23f87bed MB |
1934 | (nntp-wait-for-string "^\r*20[01]") |
1935 | (beginning-of-line) | |
1936 | (delete-region (point-min) (point)) | |
1937 | (process-send-string proc "\^]") | |
1938 | (nntp-wait-for-string "^r?telnet") | |
1939 | (process-send-string proc "mode character\n") | |
1940 | (accept-process-output proc 1) | |
1941 | (sit-for 1) | |
eec82323 | 1942 | (goto-char (point-min)) |
23f87bed MB |
1943 | (forward-line 1) |
1944 | (delete-region (point) (point-max))) | |
1945 | proc)) | |
1946 | ||
01c52d31 MB |
1947 | (defun nntp-open-via-rlogin-and-netcat (buffer) |
1948 | "Open a connection to an nntp server through an intermediate host. | |
1949 | First rlogin to the remote host, and then connect to the real news | |
1950 | server from there using the netcat command. | |
1951 | ||
1952 | Please refer to the following variables to customize the connection: | |
1953 | - `nntp-pre-command', | |
1954 | - `nntp-via-rlogin-command', | |
1955 | - `nntp-via-rlogin-command-switches', | |
1956 | - `nntp-via-user-name', | |
1957 | - `nntp-via-address', | |
990e2c2f SM |
1958 | - `nntp-netcat-command', |
1959 | - `nntp-netcat-switches', | |
01c52d31 | 1960 | - `nntp-address', |
990e2c2f | 1961 | - `nntp-port-number'." |
01c52d31 MB |
1962 | (let ((command `(,@(when nntp-pre-command |
1963 | (list nntp-pre-command)) | |
1964 | ,nntp-via-rlogin-command | |
990e2c2f | 1965 | ,@nntp-via-rlogin-command-switches |
01c52d31 MB |
1966 | ,@(when nntp-via-user-name |
1967 | (list "-l" nntp-via-user-name)) | |
1968 | ,nntp-via-address | |
990e2c2f SM |
1969 | ,nntp-netcat-command |
1970 | ,@nntp-netcat-switches | |
01c52d31 | 1971 | ,nntp-address |
990e2c2f SM |
1972 | ,(nntp-service-to-port nntp-port-number)))) |
1973 | ;; A non-nil connection type results in mightily odd behavior where | |
1974 | ;; (process-send-string proc "\^M") ends up sending a "\n" to the | |
1975 | ;; ssh process. --Stef | |
1976 | ;; Also a nil connection allow ssh-askpass to work under X11. | |
1977 | (let ((process-connection-type nil)) | |
1978 | (apply 'start-process "nntpd" buffer command)))) | |
1979 | ||
1980 | (defun nntp-open-netcat-stream (buffer) | |
1981 | "Open a connection to an nntp server through netcat. | |
1982 | I.e. use the `nc' command rather than Emacs's builtin networking code. | |
1983 | ||
1984 | Please refer to the following variables to customize the connection: | |
1985 | - `nntp-pre-command', | |
1986 | - `nntp-netcat-command', | |
1987 | - `nntp-netcat-switches', | |
1988 | - `nntp-address', | |
1989 | - `nntp-port-number'." | |
1990 | (let ((command `(,nntp-netcat-command | |
1991 | ,@nntp-netcat-switches | |
1992 | ,nntp-address | |
1993 | ,(nntp-service-to-port nntp-port-number)))) | |
1994 | (and nntp-pre-command (push nntp-pre-command command)) | |
1995 | (let ((process-connection-type nil)) ;See `nntp-open-via-rlogin-and-netcat'. | |
1996 | (apply 'start-process "nntpd" buffer command)))) | |
c9fc72fa | 1997 | |
01c52d31 | 1998 | |
23f87bed MB |
1999 | (defun nntp-open-via-telnet-and-telnet (buffer) |
2000 | "Open a connection to an nntp server through an intermediate host. | |
2001 | First telnet the remote host, and then telnet the real news server | |
2002 | from there. | |
2003 | ||
2004 | Please refer to the following variables to customize the connection: | |
2005 | - `nntp-pre-command', | |
2006 | - `nntp-via-telnet-command', | |
2007 | - `nntp-via-telnet-switches', | |
2008 | - `nntp-via-address', | |
2009 | - `nntp-via-envuser', | |
2010 | - `nntp-via-user-name', | |
2011 | - `nntp-via-user-password', | |
2012 | - `nntp-via-shell-prompt', | |
2013 | - `nntp-telnet-command', | |
2014 | - `nntp-telnet-switches', | |
2015 | - `nntp-address', | |
2016 | - `nntp-port-number', | |
2017 | - `nntp-end-of-line'." | |
ed075cb4 | 2018 | (with-current-buffer buffer |
23f87bed MB |
2019 | (erase-buffer) |
2020 | (let ((command `(,nntp-via-telnet-command ,@nntp-via-telnet-switches)) | |
2021 | (case-fold-search t) | |
2022 | proc) | |
2023 | (and nntp-pre-command (push nntp-pre-command command)) | |
2024 | (setq proc (apply 'start-process "nntpd" buffer command)) | |
2025 | (when (memq (process-status proc) '(open run)) | |
2026 | (nntp-wait-for-string "^r?telnet") | |
2027 | (process-send-string proc "set escape \^X\n") | |
2028 | (cond | |
2029 | ((and nntp-via-envuser nntp-via-user-name) | |
2030 | (process-send-string proc (concat "open " "-l" nntp-via-user-name | |
2031 | nntp-via-address "\n"))) | |
2032 | (t | |
2033 | (process-send-string proc (concat "open " nntp-via-address | |
2034 | "\n")))) | |
2035 | (when (not nntp-via-envuser) | |
2036 | (nntp-wait-for-string "^\r*.?login:") | |
2037 | (process-send-string proc | |
2038 | (concat | |
2039 | (or nntp-via-user-name | |
2040 | (setq nntp-via-user-name | |
2041 | (read-string "login: "))) | |
2042 | "\n"))) | |
2043 | (nntp-wait-for-string "^\r*.?password:") | |
2044 | (process-send-string proc | |
2045 | (concat | |
2046 | (or nntp-via-user-password | |
2047 | (setq nntp-via-user-password | |
2048 | (read-passwd "Password: "))) | |
2049 | "\n")) | |
2050 | (nntp-wait-for-string nntp-via-shell-prompt) | |
2051 | (let ((real-telnet-command `("exec" | |
2052 | ,nntp-telnet-command | |
2053 | ,@nntp-telnet-switches | |
2054 | ,nntp-address | |
990e2c2f | 2055 | ,(nntp-service-to-port nntp-port-number)))) |
23f87bed MB |
2056 | (process-send-string proc |
2057 | (concat (mapconcat 'identity | |
2058 | real-telnet-command " ") | |
2059 | "\n"))) | |
2060 | (nntp-wait-for-string "^\r*20[01]") | |
2061 | (beginning-of-line) | |
2062 | (delete-region (point-min) (point)) | |
2063 | (process-send-string proc "\^]") | |
2064 | (nntp-wait-for-string "^r?telnet") | |
2065 | (process-send-string proc "mode character\n") | |
2066 | (accept-process-output proc 1) | |
2067 | (sit-for 1) | |
2068 | (goto-char (point-min)) | |
2069 | (forward-line 1) | |
2070 | (delete-region (point) (point-max))) | |
2071 | proc))) | |
eec82323 LMI |
2072 | |
2073 | (provide 'nntp) | |
2074 | ||
2075 | ;;; nntp.el ends here |