;;; nntp.el --- nntp access for Gnus
-;; Copyright (C) 1987,88,89,90,92,93,94,95,96 Free Software Foundation, Inc.
+;;; Copyright (C) 1987-90,92-97 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
;; Keywords: news
(defvoo nntp-port-number "nntp"
"Port number on the physical nntp server.")
-(defvoo nntp-server-opened-hook nil
- "*Hook used for sending commands to the server at startup.
+(defvoo nntp-server-opened-hook '(nntp-send-mode-reader)
+ "*Hook used for sending commands to the server at startup.
The default value is `nntp-send-mode-reader', which makes an innd
server spawn an nnrpd server. Another useful function to put in this
hook might be `nntp-send-authinfo', which will prompt for a password
to allow posting from the server. Note that this is only necessary to
-do on servers that use strict access control.")
-(add-hook 'nntp-server-opened-hook 'nntp-send-mode-reader)
+do on servers that use strict access control.")
-(defvoo nntp-server-action-alist
- '(("nntpd 1\\.5\\.11t"
- (remove-hook 'nntp-server-opened-hook 'nntp-send-mode-reader)))
+(defvoo nntp-authinfo-function 'nntp-send-authinfo
+ "Function used to send AUTHINFO to the server.")
+
+(defvoo nntp-server-action-alist
+ '(("nntpd 1\\.5\\.11t"
+ (remove-hook 'nntp-server-opened-hook 'nntp-send-mode-reader))
+ ("NNRP server Netscape"
+ (setq nntp-server-list-active-group nil)))
"Alist of regexps to match on server types and actions to be taken.
For instance, if you want Gnus to beep every time you connect
to innd, you could say something like:
(defvoo nntp-open-connection-function 'nntp-open-network-stream
"*Function used for connecting to a remote system.
-It will be called with the address of the remote system.
+It will be called with the buffer to output in.
Two pre-made functions are `nntp-open-network-stream', which is the
default, and simply connects to some port or other on the remote
-system (see nntp-port-number). The other is `nntp-open-rlogin', which
-does an rlogin on the remote system, and then does a telnet to the
-NNTP server available there (see nntp-rlogin-parameters).")
+system (see nntp-port-number). The other are `nntp-open-rlogin',
+which does an rlogin on the remote system, and then does a telnet to
+the NNTP server available there (see nntp-rlogin-parameters) and
+`nntp-open-telnet' which telnets to a remote system, logs in and does
+the same.")
+
+(defvoo nntp-rlogin-program "rsh"
+ "*Program used to log in on remote machines.
+The default is \"rsh\", but \"ssh\" is a popular alternative.")
-(defvoo nntp-rlogin-parameters '("telnet" "${NNTPSERVER:=localhost}" "nntp")
+(defvoo nntp-rlogin-parameters '("telnet" "-8" "${NNTPSERVER:=news}" "nntp")
"*Parameters to `nntp-open-login'.
-That function may be used as `nntp-open-server-function'. In that
+That function may be used as `nntp-open-connection-function'. In that
case, this list will be used as the parameter list given to rsh.")
(defvoo nntp-rlogin-user-name nil
"*User name on remote system when using the rlogin connect method.")
-(defvoo nntp-telnet-parameters '("exec" "telnet" "-8" "${NNTPSERVER:=localhost}" "nntp")
+(defvoo nntp-telnet-parameters '("exec" "telnet" "-8" "${NNTPSERVER:=news}" "nntp")
"*Parameters to `nntp-open-telnet'.
-That function may be used as `nntp-open-server-function'. In that
+That function may be used as `nntp-open-connection-function'. In that
case, this list will be executed as a command after logging in
via telnet.")
(defvoo nntp-telnet-passwd nil
"Password to use to log in via telnet with.")
+(defvoo nntp-telnet-command "telnet"
+ "Command used to start telnet.")
+
+(defvoo nntp-telnet-switches '("-8")
+ "Switches given to the telnet command.")
+
(defvoo nntp-end-of-line "\r\n"
"String to use on the end of lines when talking to the NNTP server.
This is \"\\r\\n\" by default, but should be \"\\n\" when
(defvoo nntp-xover-commands '("XOVER" "XOVERVIEW")
"*List of strings that are used as commands to fetch NOV lines from a server.
-The strings are tried in turn until a positive response is gotten. If
+The strings are tried in turn until a positive response is gotten. If
none of the commands are successful, nntp will just grab headers one
by one.")
-(defvoo nntp-nov-gap 20
+(defvoo nntp-nov-gap 5
"*Maximum allowed gap between two articles.
If the gap between two consecutive articles is bigger than this
variable, split the XOVER request into two requests.")
have an account at the machine \"other.machine\". This machine has
access to an NNTP server that you can't access locally. You could
then use this hook to rsh to the remote machine and start a proxy NNTP
-server there that you can connect to.")
+server there that you can connect to. See also `nntp-open-connection-function'")
(defvoo nntp-warn-about-losing-connection t
"*If non-nil, beep when a server closes connection.")
+(defvoo nntp-coding-system-for-read nil
+ "*coding-system for read from NNTP.")
+
\f
;;; Internal variables.
+(defvar nntp-have-messaged nil)
+
+(defvar nntp-process-wait-for nil)
+(defvar nntp-process-to-buffer nil)
+(defvar nntp-process-callback nil)
+(defvar nntp-process-decode nil)
+(defvar nntp-process-start-point nil)
+(defvar nntp-inside-change-function nil)
+(defvoo nntp-last-command-time nil)
+
+(defvar nntp-connection-list nil)
+
(defvoo nntp-server-type nil)
-(defvar nntp-connection-alist nil)
-(defvar nntp-status-string "")
+(defvoo nntp-connection-alist nil)
+(defvoo nntp-status-string "")
(defconst nntp-version "nntp 5.0")
-(defvar nntp-inhibit-erase nil)
+(defvoo nntp-inhibit-erase nil)
+(defvoo nntp-inhibit-output nil)
-(defvar nntp-server-xover 'try)
-(defvar nntp-server-list-active-group 'try)
+(defvoo nntp-server-xover 'try)
+(defvoo nntp-server-list-active-group 'try)
+
+(eval-and-compile
+ (autoload 'nnmail-read-passwd "nnmail"))
+
+\f
+
+;;; Internal functions.
+
+(defsubst nntp-send-string (process string)
+ "Send STRING to PROCESS."
+ (process-send-string process (concat string nntp-end-of-line)))
+
+(defsubst nntp-wait-for (process wait-for buffer &optional decode discard)
+ "Wait for WAIT-FOR to arrive from PROCESS."
+ (save-excursion
+ (set-buffer (process-buffer process))
+ (goto-char (point-min))
+ (while (or (not (memq (char-after (point)) '(?2 ?3 ?4 ?5)))
+ (looking-at "480"))
+ (when (looking-at "480")
+ (erase-buffer)
+ (funcall nntp-authinfo-function))
+ (nntp-accept-process-output process)
+ (goto-char (point-min)))
+ (prog1
+ (if (looking-at "[45]")
+ (progn
+ (nntp-snarf-error-message)
+ nil)
+ (goto-char (point-max))
+ (let ((limit (point-min)))
+ (while (not (re-search-backward wait-for limit t))
+ ;; We assume that whatever we wait for is less than 1000
+ ;; characters long.
+ (setq limit (max (- (point-max) 1000) (point-min)))
+ (nntp-accept-process-output process)
+ (goto-char (point-max))))
+ (nntp-decode-text (not decode))
+ (unless discard
+ (save-excursion
+ (set-buffer buffer)
+ (goto-char (point-max))
+ (insert-buffer-substring (process-buffer process))
+ ;; Nix out "nntp reading...." message.
+ (when nntp-have-messaged
+ (setq nntp-have-messaged nil)
+ (message ""))
+ t)))
+ (unless discard
+ (erase-buffer)))))
+
+(defsubst nntp-find-connection (buffer)
+ "Find the connection delivering to BUFFER."
+ (let ((alist nntp-connection-alist)
+ (buffer (if (stringp buffer) (get-buffer buffer) buffer))
+ process entry)
+ (while (setq entry (pop alist))
+ (when (eq buffer (cadr entry))
+ (setq process (car entry)
+ alist nil)))
+ (when process
+ (if (memq (process-status process) '(open run))
+ process
+ (when (buffer-name (process-buffer process))
+ (kill-buffer (process-buffer process)))
+ (setq nntp-connection-alist (delq entry nntp-connection-alist))
+ nil))))
+
+(defsubst nntp-find-connection-entry (buffer)
+ "Return the entry for the connection to BUFFER."
+ (assq (nntp-find-connection buffer) nntp-connection-alist))
+
+(defun nntp-find-connection-buffer (buffer)
+ "Return the process connection buffer tied to BUFFER."
+ (let ((process (nntp-find-connection buffer)))
+ (when process
+ (process-buffer process))))
+
+(defsubst nntp-retrieve-data (command address port buffer
+ &optional wait-for callback decode)
+ "Use COMMAND to retrieve data into BUFFER from PORT on ADDRESS."
+ (setq nntp-last-command-time (current-time))
+ (let ((process (or (nntp-find-connection buffer)
+ (nntp-open-connection buffer))))
+ (if (not process)
+ (nnheader-report 'nntp "Couldn't open connection to %s" address)
+ (unless (or nntp-inhibit-erase nnheader-callback-function)
+ (save-excursion
+ (set-buffer (process-buffer process))
+ (erase-buffer)))
+ (when command
+ (nntp-send-string process command))
+ (cond
+ ((eq callback 'ignore)
+ t)
+ ((and callback wait-for)
+ (save-excursion
+ (set-buffer (process-buffer process))
+ (unless nntp-inside-change-function
+ (erase-buffer))
+ (setq nntp-process-decode decode
+ nntp-process-to-buffer buffer
+ nntp-process-wait-for wait-for
+ nntp-process-callback callback
+ nntp-process-start-point (point-max)
+ after-change-functions
+ (list 'nntp-after-change-function-callback)))
+ t)
+ (wait-for
+ (nntp-wait-for process wait-for buffer decode))
+ (t t)))))
+
+(defsubst nntp-send-command (wait-for &rest strings)
+ "Send STRINGS to server and wait until WAIT-FOR returns."
+ (when (and (not nnheader-callback-function)
+ (not nntp-inhibit-output))
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (erase-buffer)))
+ (nntp-retrieve-data
+ (mapconcat 'identity strings " ")
+ nntp-address nntp-port-number nntp-server-buffer
+ wait-for nnheader-callback-function))
+
+(defun nntp-send-command-nodelete (wait-for &rest strings)
+ "Send STRINGS to server and wait until WAIT-FOR returns."
+ (nntp-retrieve-data
+ (mapconcat 'identity strings " ")
+ nntp-address nntp-port-number nntp-server-buffer
+ wait-for nnheader-callback-function))
+
+(defun nntp-send-command-and-decode (wait-for &rest strings)
+ "Send STRINGS to server and wait until WAIT-FOR returns."
+ (when (and (not nnheader-callback-function)
+ (not nntp-inhibit-output))
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (erase-buffer)))
+ (nntp-retrieve-data
+ (mapconcat 'identity strings " ")
+ nntp-address nntp-port-number nntp-server-buffer
+ wait-for nnheader-callback-function t))
+
+(defun nntp-send-buffer (wait-for)
+ "Send the current buffer to server and wait until WAIT-FOR returns."
+ (when (and (not nnheader-callback-function)
+ (not nntp-inhibit-output))
+ (save-excursion
+ (set-buffer (nntp-find-connection-buffer nntp-server-buffer))
+ (erase-buffer)))
+ (nntp-encode-text)
+ (process-send-region (nntp-find-connection nntp-server-buffer)
+ (point-min) (point-max))
+ (nntp-retrieve-data
+ nil nntp-address nntp-port-number nntp-server-buffer
+ wait-for nnheader-callback-function))
\f
(nnoo-define-basics nntp)
+(defsubst nntp-next-result-arrived-p ()
+ (let ((point (point)))
+ (cond
+ ((eq (following-char) ?2)
+ (if (re-search-forward "\n\\.\r?\n" nil t)
+ t
+ (goto-char point)
+ nil))
+ ((looking-at "[34]")
+ (forward-line 1)
+ t)
+ (t
+ nil))))
+
(deffoo nntp-retrieve-headers (articles &optional group server fetch-old)
"Retrieve the headers of ARTICLES."
(nntp-possibly-change-group group server)
(save-excursion
(set-buffer (nntp-find-connection-buffer nntp-server-buffer))
(erase-buffer)
- (if (and (not gnus-nov-is-evil)
+ (if (and (not gnus-nov-is-evil)
(not nntp-nov-is-evil)
(nntp-retrieve-headers-with-xover articles fetch-old))
;; We successfully retrieved the headers via XOVER.
'nov
;; XOVER didn't work, so we do it the hard, slow and inefficient
- ;; way.
+ ;; way.
(let ((number (length articles))
(count 0)
(received 0)
- (last-point (point-min)))
- ;; Send HEAD command.
- (while articles
- (nntp-send-command
- nil
- "HEAD" (if (numberp (car articles))
- (int-to-string (car articles))
- ;; `articles' is either a list of article numbers
- ;; or a list of article IDs.
- (car articles)))
- (setq articles (cdr articles)
- count (1+ count))
- ;; Every 400 header requests we have to read the stream in
- ;; order to avoid deadlocks.
- (when (or (null articles) ;All requests have been sent.
- (zerop (% count nntp-maximum-request)))
- (nntp-accept-response)
- (while (progn
- (goto-char last-point)
- ;; Count replies.
- (while (re-search-forward "^[0-9]" nil t)
- (setq received (1+ received)))
- (setq last-point (point))
- (< received count))
- ;; If number of headers is greater than 100, give
- ;; informative messages.
- (and (numberp nntp-large-newsgroup)
- (> number nntp-large-newsgroup)
- (zerop (% received 20))
- (message "NNTP: Receiving headers... %d%%"
- (/ (* received 100) number)))
- (nntp-accept-response))))
- ;; Wait for text of last command.
- (goto-char (point-max))
- (re-search-backward "^[0-9]" nil t)
- (when (looking-at "^[23]")
+ (last-point (point-min))
+ (buf (nntp-find-connection-buffer nntp-server-buffer))
+ (nntp-inhibit-erase t)
+ article)
+ ;; Send HEAD commands.
+ (while (setq article (pop articles))
+ (nntp-send-command
+ nil
+ "HEAD" (if (numberp article)
+ (int-to-string article)
+ ;; `articles' is either a list of article numbers
+ ;; or a list of article IDs.
+ article))
+ (incf count)
+ ;; Every 400 requests we have to read the stream in
+ ;; order to avoid deadlocks.
+ (when (or (null articles) ;All requests have been sent.
+ (zerop (% count nntp-maximum-request)))
+ (nntp-accept-response)
(while (progn
- (goto-char (- (point-max) 3))
- (not (looking-at "^\\.\r?\n")))
- (nntp-accept-response)))
+ (set-buffer buf)
+ (goto-char last-point)
+ ;; Count replies.
+ (while (nntp-next-result-arrived-p)
+ (setq last-point (point))
+ (incf received))
+ (< received count))
+ ;; If number of headers is greater than 100, give
+ ;; informative messages.
+ (and (numberp nntp-large-newsgroup)
+ (> number nntp-large-newsgroup)
+ (zerop (% received 20))
+ (nnheader-message 6 "NNTP: Receiving headers... %d%%"
+ (/ (* received 100) number)))
+ (nntp-accept-response))))
(and (numberp nntp-large-newsgroup)
(> number nntp-large-newsgroup)
- (message "NNTP: Receiving headers...done"))
+ (nnheader-message 6 "NNTP: Receiving headers...done"))
;; Now all of replies are received. Fold continuation lines.
(nnheader-fold-continuation-lines)
;; Remove all "\r"'s.
- (goto-char (point-min))
- (while (search-forward "\r" nil t)
- (replace-match "" t t))
+ (nnheader-strip-cr)
(copy-to-buffer nntp-server-buffer (point-min) (point-max))
'headers))))
-(deffoo nntp-request-article (article &optional group server buffer)
+(deffoo nntp-retrieve-groups (groups &optional server)
+ "Retrieve group info on GROUPS."
+ (nntp-possibly-change-group nil server)
+ (save-excursion
+ (set-buffer (nntp-find-connection-buffer nntp-server-buffer))
+ ;; The first time this is run, this variable is `try'. So we
+ ;; try.
+ (when (eq nntp-server-list-active-group 'try)
+ (nntp-try-list-active (car groups)))
+ (erase-buffer)
+ (let ((count 0)
+ (received 0)
+ (last-point (point-min))
+ (nntp-inhibit-erase t)
+ (command (if nntp-server-list-active-group "LIST ACTIVE" "GROUP")))
+ (while groups
+ ;; Send the command to the server.
+ (nntp-send-command nil command (pop groups))
+ (incf count)
+ ;; Every 400 requests we have to read the stream in
+ ;; order to avoid deadlocks.
+ (when (or (null groups) ;All requests have been sent.
+ (zerop (% count nntp-maximum-request)))
+ (nntp-accept-response)
+ (while (progn
+ (goto-char last-point)
+ ;; Count replies.
+ (while (re-search-forward "^[0-9]" nil t)
+ (incf received))
+ (setq last-point (point))
+ (< received count))
+ (nntp-accept-response))))
+
+ ;; Wait for the reply from the final command.
+ (goto-char (point-max))
+ (re-search-backward "^[0-9]" nil t)
+ (when (looking-at "^[23]")
+ (while (progn
+ (goto-char (point-max))
+ (if (not nntp-server-list-active-group)
+ (not (re-search-backward "\r?\n" (- (point) 3) t))
+ (not (re-search-backward "^\\.\r?\n" (- (point) 4) t))))
+ (nntp-accept-response)))
+
+ ;; Now all replies are received. We remove CRs.
+ (goto-char (point-min))
+ (while (search-forward "\r" nil t)
+ (replace-match "" t t))
+
+ (if (not nntp-server-list-active-group)
+ (progn
+ (copy-to-buffer nntp-server-buffer (point-min) (point-max))
+ 'group)
+ ;; We have read active entries, so we just delete the
+ ;; superfluous gunk.
+ (goto-char (point-min))
+ (while (re-search-forward "^[.2-5]" nil t)
+ (delete-region (match-beginning 0)
+ (progn (forward-line 1) (point))))
+ (copy-to-buffer nntp-server-buffer (point-min) (point-max))
+ 'active))))
+
+(deffoo nntp-retrieve-articles (articles &optional group server)
+ (nntp-possibly-change-group group server)
+ (save-excursion
+ (let ((number (length articles))
+ (count 0)
+ (received 0)
+ (last-point (point-min))
+ (buf (nntp-find-connection-buffer nntp-server-buffer))
+ (nntp-inhibit-erase t)
+ (map (apply 'vector articles))
+ (point 1)
+ article alist)
+ (set-buffer buf)
+ (erase-buffer)
+ ;; Send ARTICLE command.
+ (while (setq article (pop articles))
+ (nntp-send-command
+ nil
+ "ARTICLE" (if (numberp article)
+ (int-to-string article)
+ ;; `articles' is either a list of article numbers
+ ;; or a list of article IDs.
+ article))
+ (incf count)
+ ;; Every 400 requests we have to read the stream in
+ ;; order to avoid deadlocks.
+ (when (or (null articles) ;All requests have been sent.
+ (zerop (% count nntp-maximum-request)))
+ (nntp-accept-response)
+ (while (progn
+ (set-buffer buf)
+ (goto-char last-point)
+ ;; Count replies.
+ (while (nntp-next-result-arrived-p)
+ (aset map received (cons (aref map received) (point)))
+ (setq last-point (point))
+ (incf received))
+ (< received count))
+ ;; If number of headers is greater than 100, give
+ ;; informative messages.
+ (and (numberp nntp-large-newsgroup)
+ (> number nntp-large-newsgroup)
+ (zerop (% received 20))
+ (nnheader-message 6 "NNTP: Receiving articles... %d%%"
+ (/ (* received 100) number)))
+ (nntp-accept-response))))
+ (and (numberp nntp-large-newsgroup)
+ (> number nntp-large-newsgroup)
+ (nnheader-message 6 "NNTP: Receiving articles...done"))
+
+ ;; Now we have all the responses. We go through the results,
+ ;; washes it and copies it over to the server buffer.
+ (set-buffer nntp-server-buffer)
+ (erase-buffer)
+ (setq last-point (point-min))
+ (mapcar
+ (lambda (entry)
+ (narrow-to-region
+ (setq point (goto-char (point-max)))
+ (progn
+ (insert-buffer-substring buf last-point (cdr entry))
+ (point-max)))
+ (setq last-point (cdr entry))
+ (nntp-decode-text)
+ (widen)
+ (cons (car entry) point))
+ map))))
+
+(defun nntp-try-list-active (group)
+ (nntp-list-active-group group)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ (cond ((or (eobp)
+ (looking-at "5[0-9]+"))
+ (setq nntp-server-list-active-group nil))
+ (t
+ (setq nntp-server-list-active-group t)))))
+
+(deffoo nntp-list-active-group (group &optional server)
+ "Return the active info on GROUP (which can be a regexp."
+ (nntp-possibly-change-group nil server)
+ (nntp-send-command "^.*\r?\n" "LIST ACTIVE" group))
+
+(deffoo nntp-request-article (article &optional group server buffer command)
(nntp-possibly-change-group group server)
(when (nntp-send-command-and-decode
- "\r\n\\.\r\n" "ARTICLE"
+ "\r?\n\\.\r?\n" "ARTICLE"
(if (numberp article) (int-to-string article) article))
- (when buffer
- (save-excursion
- (set-buffer nntp-server-buffer)
- (copy-to-buffer buffer (point-min) (point-max)))
- t)))
+ (if (and buffer
+ (not (equal buffer nntp-server-buffer)))
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (copy-to-buffer buffer (point-min) (point-max))
+ (nntp-find-group-and-number))
+ (nntp-find-group-and-number))))
+
+(deffoo nntp-request-head (article &optional group server)
+ (nntp-possibly-change-group group server)
+ (when (nntp-send-command
+ "\r?\n\\.\r?\n" "HEAD"
+ (if (numberp article) (int-to-string article) article))
+ (prog1
+ (nntp-find-group-and-number)
+ (nntp-decode-text))))
(deffoo nntp-request-body (article &optional group server)
(nntp-possibly-change-group group server)
- (nntp-send-command
- "\r\n\\.\r\n" "BODY"
+ (nntp-send-command-and-decode
+ "\r?\n\\.\r?\n" "BODY"
(if (numberp article) (int-to-string article) article)))
(deffoo nntp-request-group (group &optional server dont-check)
(nntp-possibly-change-group nil server)
- (when (nntp-send-command "^2.*\r\n" "GROUP" group)
+ (when (nntp-send-command "^2.*\n" "GROUP" group)
(let ((entry (nntp-find-connection-entry nntp-server-buffer)))
(setcar (cddr entry) group))))
(while (setq process (car (pop nntp-connection-alist)))
(when (memq (process-status process) '(open run))
(set-process-sentinel process nil)
- (set-process-filter process nil)
- (nntp-send-string process "QUIT"))
+ (ignore-errors
+ (nntp-send-string process "QUIT")))
(when (buffer-name (process-buffer process))
(kill-buffer (process-buffer process))))
(nnoo-close-server 'nntp)))
+(deffoo nntp-request-close ()
+ (let (process)
+ (while (setq process (pop nntp-connection-list))
+ (when (memq (process-status process) '(open run))
+ (set-process-sentinel process nil)
+ (ignore-errors
+ (nntp-send-string process "QUIT")))
+ (when (buffer-name (process-buffer process))
+ (kill-buffer (process-buffer process))))))
+
(deffoo nntp-request-list (&optional server)
(nntp-possibly-change-group nil server)
- (nntp-send-command "\r\n\\.\r\n" "LIST"))
+ (nntp-send-command-and-decode "\r?\n\\.\r?\n" "LIST"))
(deffoo nntp-request-list-newsgroups (&optional server)
(nntp-possibly-change-group nil server)
- (nntp-send-command "\r\n\\.\r\n" "LIST NEWSGROUPS"))
+ (nntp-send-command "\r?\n\\.\r?\n" "LIST NEWSGROUPS"))
(deffoo nntp-request-newgroups (date &optional server)
(nntp-possibly-change-group nil server)
- (let* ((date (timezone-parse-date date))
- (time-string
- (format "%s%02d%02d %s%s%s"
- (substring (aref date 0) 2) (string-to-int (aref date 1))
- (string-to-int (aref date 2)) (substring (aref date 3) 0 2)
- (substring
- (aref date 3) 3 5) (substring (aref date 3) 6 8))))
- (prog1
- (nntp-send-command "^\\.\r?\n" "NEWGROUPS" time-string)
- (nntp-decode-text))))
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (let* ((date (timezone-parse-date date))
+ (time-string
+ (format "%s%02d%02d %s%s%s"
+ (substring (aref date 0) 2) (string-to-int (aref date 1))
+ (string-to-int (aref date 2)) (substring (aref date 3) 0 2)
+ (substring
+ (aref date 3) 3 5) (substring (aref date 3) 6 8))))
+ (prog1
+ (nntp-send-command "^\\.\r?\n" "NEWGROUPS" time-string)
+ (nntp-decode-text)))))
+
+(deffoo nntp-request-post (&optional server)
+ (nntp-possibly-change-group nil server)
+ (when (nntp-send-command "^[23].*\r?\n" "POST")
+ (nntp-send-buffer "^[23].*\n")))
+(deffoo nntp-request-type (group article)
+ 'news)
(deffoo nntp-asynchronous-p ()
t)
-
+
;;; Hooky functions.
(defun nntp-send-mode-reader ()
This function is supposed to be called from `nntp-server-opened-hook'.
It will make innd servers spawn an nnrpd process to allow actual article
reading."
- (nntp-send-command "^.*\r\n" "MODE READER"))
+ (nntp-send-command "^.*\r?\n" "MODE READER"))
(defun nntp-send-nosy-authinfo ()
"Send the AUTHINFO to the nntp server.
This function is supposed to be called from `nntp-server-opened-hook'.
It will prompt for a password."
- (nntp-send-command "^.*\r\n" "AUTHINFO USER"
- (read-string "NNTP user name: "))
- (nntp-send-command "^.*\r\n" "AUTHINFO PASS"
- (read-string "NNTP password: ")))
+ (nntp-send-command
+ "^.*\r?\n" "AUTHINFO USER"
+ (read-string (format "NNTP (%s) user name: " nntp-address)))
+ (nntp-send-command
+ "^.*\r?\n" "AUTHINFO PASS"
+ (nnmail-read-passwd "NNTP (%s) password: " nntp-address)))
(defun nntp-send-authinfo ()
"Send the AUTHINFO to the nntp server.
This function is supposed to be called from `nntp-server-opened-hook'.
It will prompt for a password."
- (nntp-send-command "^.*\r\n" "AUTHINFO USER" (user-login-name))
- (nntp-send-command "^.*\r\n" "AUTHINFO PASS"
- (read-string "NNTP password: ")))
+ (nntp-send-command "^.*\r?\n" "AUTHINFO USER" (user-login-name))
+ (nntp-send-command
+ "^.*\r?\n" "AUTHINFO PASS"
+ (nnmail-read-passwd (format "NNTP (%s) password: " nntp-address))))
(defun nntp-send-authinfo-from-file ()
"Send the AUTHINFO to the nntp server.
-This function is supposed to be called from `nntp-server-opened-hook'.
-It will prompt for a password."
+This function is supposed to be called from `nntp-server-opened-hook'."
(when (file-exists-p "~/.nntp-authinfo")
- (save-excursion
- (set-buffer (get-buffer-create " *authinfo*"))
- (buffer-disable-undo (current-buffer))
- (erase-buffer)
+ (nnheader-temp-write nil
(insert-file-contents "~/.nntp-authinfo")
(goto-char (point-min))
- (nntp-send-command "^.*\r\n" "AUTHINFO USER" (user-login-name))
- (nntp-send-command
- "^.*\r\n" "AUTHINFO PASS"
- (buffer-substring (point) (progn (end-of-line) (point))))
- (kill-buffer (current-buffer)))))
+ (nntp-send-command "^.*\r?\n" "AUTHINFO USER" (user-login-name))
+ (nntp-send-command
+ "^.*\r?\n" "AUTHINFO PASS"
+ (buffer-substring (point) (progn (end-of-line) (point)))))))
;;; Internal functions.
-(defun nntp-send-command (wait-for &rest strings)
- "Send STRINGS to server and wait until WAIT-FOR returns."
- (unless nnheader-callback-function
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)))
- (nntp-retrieve-data
- (mapconcat 'identity strings " ")
- nntp-address nntp-port-number nntp-server-buffer
- wait-for nnheader-callback-function))
-
-(defun nntp-send-command-and-decode (wait-for &rest strings)
- "Send STRINGS to server and wait until WAIT-FOR returns."
- (unless nnheader-callback-function
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)))
- (nntp-retrieve-data
- (mapconcat 'identity strings " ")
- nntp-address nntp-port-number nntp-server-buffer
- wait-for nnheader-callback-function t))
-
-(defun nntp-find-connection (buffer)
- "Find the connection delivering to BUFFER."
- (let ((alist nntp-connection-alist)
- (buffer (if (stringp buffer) (get-buffer buffer) buffer))
- process entry)
- (while (setq entry (pop alist))
- (when (eq buffer (cadr entry))
- (setq process (car entry)
- alist nil)))
- (when process
- (if (memq (process-status process) '(open run))
- process
- (when (buffer-name (process-buffer process))
- (kill-buffer (process-buffer process)))
- (setq nntp-connection-alist (delq entry nntp-connection-alist))
- nil))))
-
-(defun nntp-find-connection-entry (buffer)
- "Return the entry for the connection to BUFFER."
- (assq (nntp-find-connection buffer) nntp-connection-alist))
+(defun nntp-make-process-buffer (buffer)
+ "Create a new, fresh buffer usable for nntp process connections."
+ (save-excursion
+ (set-buffer
+ (generate-new-buffer
+ (format " *server %s %s %s*"
+ nntp-address nntp-port-number
+ (buffer-name (get-buffer buffer)))))
+ (buffer-disable-undo (current-buffer))
+ (set (make-local-variable 'after-change-functions) nil)
+ (set (make-local-variable 'nntp-process-wait-for) nil)
+ (set (make-local-variable 'nntp-process-callback) nil)
+ (set (make-local-variable 'nntp-process-to-buffer) nil)
+ (set (make-local-variable 'nntp-process-start-point) nil)
+ (set (make-local-variable 'nntp-process-decode) nil)
+ (current-buffer)))
(defun nntp-open-connection (buffer)
"Open a connection to PORT on ADDRESS delivering output to BUFFER."
(run-hooks 'nntp-prepare-server-hook)
- (let* ((pbuffer (save-excursion
- (set-buffer
- (generate-new-buffer
- (format " *server %s %s %s*"
- nntp-address nntp-port-number
- (buffer-name (get-buffer buffer)))))
- (buffer-disable-undo (current-buffer))
- (current-buffer)))
- (process (funcall nntp-open-connection-function pbuffer)))
+ (let* ((pbuffer (nntp-make-process-buffer buffer))
+ (process
+ (condition-case ()
+ (let ((coding-system-for-read nntp-coding-system-for-read))
+ (funcall nntp-open-connection-function pbuffer))
+ (error nil)
+ (quit nil))))
(when process
(process-kill-without-query process)
- (nntp-wait-for process "^.*\r\n" buffer)
+ (nntp-wait-for process "^.*\n" buffer nil t)
(if (memq (process-status process) '(open run))
(prog1
- (caar (push (list process buffer nil)
- nntp-connection-alist))
- (nntp-read-server-type)
- (run-hooks 'nntp-server-opened-hook))
+ (caar (push (list process buffer nil) nntp-connection-alist))
+ (push process nntp-connection-list)
+ (save-excursion
+ (set-buffer pbuffer)
+ (nntp-read-server-type)
+ (erase-buffer)
+ (set-buffer nntp-server-buffer)
+ (let ((nnheader-callback-function nil))
+ (run-hooks 'nntp-server-opened-hook))))
(when (buffer-name (process-buffer process))
(kill-buffer (process-buffer process)))
nil))))
;; Wait for the status string to arrive.
(setq nntp-server-type (buffer-string))
(let ((alist nntp-server-action-alist)
+ (case-fold-search t)
entry)
- ;; Run server-specific commmands.
+ ;; Run server-specific commands.
(while alist
(setq entry (pop alist))
(when (string-match (car entry) nntp-server-type)
(eval (cadr entry))
(funcall (cadr entry)))))))
-(defvar nntp-tmp-first)
-(defvar nntp-tmp-wait-for)
-(defvar nntp-tmp-callback)
-(defvar nntp-tmp-buffer)
-
-(defun nntp-make-process-filter (wait-for callback buffer decode)
- `(lambda (proc string)
- (let ((nntp-tmp-wait-for ,wait-for)
- (nntp-tmp-callback ,callback)
- (nntp-tmp-buffer ,buffer))
- (nntp-process-filter proc string))))
-
-(defun nntp-process-filter (proc string)
- (let ((old-buffer (current-buffer)))
- (unwind-protect
- (let (point)
- (set-buffer (process-buffer proc))
- ;; Insert the text, moving the process-marker.
- (setq point (goto-char (process-mark proc)))
- (insert string)
- (set-marker (process-mark proc) (point))
- (if (and (= point (point-min))
- (string-match "^45" string))
- (progn
- (nntp-snarf-error-message)
- (set-process-filter proc nil)
- (funcall nntp-tmp-callback nil))
- (setq nntp-tmp-first nil)
- (if (re-search-backward nntp-tmp-wait-for nil t)
- (progn
- (if (buffer-name (get-buffer nntp-tmp-buffer))
- (save-excursion
- (set-buffer (get-buffer nntp-tmp-buffer))
- (insert-buffer-substring (process-buffer proc))))
- (set-process-filter proc nil)
- (erase-buffer)
- (funcall nntp-tmp-callback t)))))
- (set-buffer old-buffer))))
-
-(defun nntp-retrieve-data (command address port buffer
- &optional wait-for callback decode)
- "Use COMMAND to retrieve data into BUFFER from PORT on ADDRESS."
- (let ((process (or (nntp-find-connection buffer)
- (nntp-open-connection buffer))))
- (if (not process)
- (nnheader-report 'nntp "Couldn't open connection to %a" address)
- (unless nntp-inhibit-erase
- (save-excursion
- (set-buffer (process-buffer process))
- (erase-buffer)))
- (nntp-send-string process command)
- (cond
- ((eq callback 'ignore)
- t)
- ((and callback wait-for)
- (set-process-filter
- process (nntp-make-process-filter wait-for callback buffer decode))
- t)
- (wait-for
- (set-process-filter process nil)
- (nntp-wait-for process wait-for buffer decode))
- (t t)))))
-
-(defun nntp-send-string (process string)
- "Send STRING to PROCESS."
- (process-send-string process (concat string nntp-end-of-line)))
-
-(defun nntp-wait-for (process wait-for buffer &optional decode)
- "Wait for WAIT-FOR to arrive from PROCESS."
- (save-excursion
- (set-buffer (process-buffer process))
- (goto-char (point-min))
- (while (not (looking-at "[2345]"))
- (nntp-accept-process-output process)
- (goto-char (point-min)))
- (prog1
- (if (looking-at "[345]")
- (progn
- (nntp-snarf-error-message)
- nil)
- (goto-char (point-max))
- (while (not (re-search-backward wait-for nil t))
- (nntp-accept-process-output process)
- (goto-char (point-max)))
- (nntp-decode-text (not decode))
+(defun nntp-after-change-function-callback (beg end len)
+ (when nntp-process-callback
+ (save-match-data
+ (if (and (= beg (point-min))
+ (memq (char-after beg) '(?4 ?5)))
+ ;; Report back error messages.
(save-excursion
- (set-buffer buffer)
- (insert-buffer-substring (process-buffer process))
- t))
- (erase-buffer))))
+ (goto-char beg)
+ (if (looking-at "480")
+ (funcall nntp-authinfo-function)
+ (nntp-snarf-error-message)
+ (funcall nntp-process-callback nil)))
+ (goto-char end)
+ (when (and (> (point) nntp-process-start-point)
+ (re-search-backward nntp-process-wait-for
+ nntp-process-start-point t))
+ (when (buffer-name (get-buffer nntp-process-to-buffer))
+ (let ((cur (current-buffer))
+ (start nntp-process-start-point))
+ (save-excursion
+ (set-buffer (get-buffer nntp-process-to-buffer))
+ (goto-char (point-max))
+ (let ((b (point)))
+ (insert-buffer-substring cur start)
+ (narrow-to-region b (point-max))
+ (nntp-decode-text)
+ (widen)))))
+ (goto-char end)
+ (let ((callback nntp-process-callback)
+ (nntp-inside-change-function t))
+ (setq nntp-process-callback nil)
+ (save-excursion
+ (funcall callback (buffer-name
+ (get-buffer nntp-process-to-buffer))))))))))
(defun nntp-snarf-error-message ()
"Save the error message in the current buffer."
- (setq nntp-status-string (buffer-string)))
+ (let ((message (buffer-string)))
+ (while (string-match "[\r\n]+" message)
+ (setq message (replace-match " " t t message)))
+ (nnheader-report 'nntp message)
+ message))
(defun nntp-accept-process-output (process)
"Wait for output from PROCESS and message some dots."
(save-excursion
- (set-buffer nntp-server-buffer)
- (message "nntp reading%s" (make-string (/ (point-max) 100) ?.))
+ (set-buffer (or (nntp-find-connection-buffer nntp-server-buffer)
+ nntp-server-buffer))
+ (let ((len (/ (point-max) 1024))
+ message-log-max)
+ (unless (< len 10)
+ (setq nntp-have-messaged t)
+ (nnheader-message 7 "nntp read: %dk" len)))
(accept-process-output process 1)))
(defun nntp-accept-response ()
(nntp-accept-process-output (nntp-find-connection nntp-server-buffer)))
(defun nntp-possibly-change-group (group server &optional connectionless)
- (when server
- (or (nntp-server-opened server)
- (nntp-open-server server nil connectionless)))
+ (let ((nnheader-callback-function nil))
+ (when server
+ (or (nntp-server-opened server)
+ (nntp-open-server server nil connectionless)))
- (unless connectionless
- (or (nntp-find-connection nntp-server-buffer)
- (nntp-open-connection nntp-server-buffer)))
+ (unless connectionless
+ (or (nntp-find-connection nntp-server-buffer)
+ (nntp-open-connection nntp-server-buffer))))
(when group
(let ((entry (nntp-find-connection-entry nntp-server-buffer)))
(when (not (equal group (caddr entry)))
- (nntp-request-group group)))))
+ (save-excursion
+ (set-buffer (process-buffer (car entry)))
+ (erase-buffer)
+ (nntp-send-string (car entry) (concat "GROUP " group))
+ (nntp-wait-for-string "^2.*\n")
+ (setcar (cddr entry) group)
+ (erase-buffer))))))
(defun nntp-decode-text (&optional cr-only)
"Decode the text in the current buffer."
(while (search-forward "\r" nil t)
(delete-char -1))
(unless cr-only
+ ;; Remove trailing ".\n" end-of-transfer marker.
(goto-char (point-max))
(forward-line -1)
(when (looking-at ".\n")
(delete-char 2))
+ ;; Delete status line.
(goto-char (point-min))
(delete-region (point) (progn (forward-line 1) (point)))
+ ;; Remove "." -> ".." encoding.
(while (search-forward "\n.." nil t)
(delete-char -1))))
+(defun nntp-encode-text ()
+ "Encode the text in the current buffer."
+ (save-excursion
+ ;; Replace "." at beginning of line with "..".
+ (goto-char (point-min))
+ (while (re-search-forward "^\\." nil t)
+ (insert "."))
+ (goto-char (point-max))
+ ;; Insert newline at the end of the buffer.
+ (unless (bolp)
+ (insert "\n"))
+ ;; Insert `.' at end of buffer (end of text mark).
+ (goto-char (point-max))
+ (insert ".\n")
+ (goto-char (point-min))
+ (while (not (eobp))
+ (end-of-line)
+ (insert "\r")
+ (forward-line 1))))
+
(defun nntp-retrieve-headers-with-xover (articles &optional fetch-old)
+ (set-buffer nntp-server-buffer)
(erase-buffer)
- (cond
+ (cond
;; This server does not talk NOV.
((not nntp-server-xover)
;; We don't care about gaps.
((or (not nntp-nov-gap)
fetch-old)
- (nntp-send-xover-command
+ (nntp-send-xover-command
(if fetch-old
- (if (numberp fetch-old)
- (max 1 (- (car articles) fetch-old))
+ (if (numberp fetch-old)
+ (max 1 (- (car articles) fetch-old))
1)
(car articles))
- (last articles) 'wait)
+ (car (last articles)) 'wait)
(goto-char (point-min))
(when (looking-at "[1-5][0-9][0-9] ")
(while (and nntp-server-xover articles)
(setq first (car articles))
;; Search forward until we find a gap, or until we run out of
- ;; articles.
- (while (and (cdr articles)
+ ;; articles.
+ (while (and (cdr articles)
(< (- (nth 1 articles) (car articles)) nntp-nov-gap))
(setq articles (cdr articles)))
(zerop (% count nntp-maximum-request)))
(accept-process-output)
;; On some Emacs versions the preceding function has
- ;; a tendency to change the buffer. Perhaps. It's
+ ;; a tendency to change the buffer. Perhaps. It's
;; quite difficult to reproduce, because it only
- ;; seems to happen once in a blue moon.
- (set-buffer buf)
+ ;; seems to happen once in a blue moon.
+ (set-buffer buf)
(while (progn
(goto-char last-point)
;; Count replies.
(forward-line -1)
(not (looking-at "^\\.\r?\n")))
(nntp-accept-response)))
-
+
;; We remove any "." lines and status lines.
(goto-char (point-min))
(while (search-forward "\r" nil t)
(delete-char -1))
(goto-char (point-min))
(delete-matching-lines "^\\.$\\|^[1-5][0-9][0-9] ")
- ;(save-excursion
- ; (set-buffer nntp-server-buffer)
- ; (insert-buffer-substring buf))
- ;(erase-buffer)
- ))))
+ ;;(copy-to-buffer nntp-server-buffer (point-min) (point-max))
+ t))))
nntp-server-xover)
;; If `nntp-server-xover' is a string, then we just send this
;; command.
(if wait-for-reply
- (nntp-send-command "\r\n\\.\r\n" nntp-server-xover range)
+ (nntp-send-command-nodelete
+ "\r?\n\\.\r?\n" nntp-server-xover range)
;; We do not wait for the reply.
- (nntp-send-command "\r\n\\.\r\n" nntp-server-xover range))
+ (nntp-send-command-nodelete "\r?\n\\.\r?\n" nntp-server-xover range))
(let ((commands nntp-xover-commands))
;; `nntp-xover-commands' is a list of possible XOVER commands.
- ;; We try them all until we get at positive response.
+ ;; We try them all until we get at positive response.
(while (and commands (eq nntp-server-xover 'try))
- (nntp-send-command "\r\n\\.\r\n" (car commands) range)
+ (nntp-send-command-nodelete "\r?\n\\.\r?\n" (car commands) range)
(save-excursion
(set-buffer nntp-server-buffer)
(goto-char (point-min))
- (and (looking-at "[23]") ; No error message.
+ (and (looking-at "[23]") ; No error message.
;; We also have to look at the lines. Some buggy
;; servers give back simple lines with just the
;; article number. How... helpful.
(set-buffer buf)
(goto-char (point-min)))))
-(defun nntp-open-telnet (server)
+(defun nntp-open-telnet (buffer)
(save-excursion
- (set-buffer nntp-server-buffer)
+ (set-buffer buffer)
(erase-buffer)
- (let ((proc (start-process
- "nntpd" nntp-server-buffer "telnet" "-8"))
+ (let ((proc (apply
+ 'start-process
+ "nntpd" buffer nntp-telnet-command nntp-telnet-switches))
(case-fold-search t))
(when (memq (process-status proc) '(open run))
(process-send-string proc "set escape \^X\n")
- (process-send-string proc (concat "open " server "\n"))
+ (process-send-string proc (concat "open " nntp-address "\n"))
(nntp-wait-for-string "^\r*.?login:")
(process-send-string
proc (concat
(delete-region (point) (point-max)))
proc)))
-(defun nntp-open-rlogin (server)
+(defun nntp-open-rlogin (buffer)
"Open a connection to SERVER using rsh."
(let ((proc (if nntp-rlogin-user-name
(start-process
- "nntpd" nntp-server-buffer "rsh"
- server "-l" nntp-rlogin-user-name
+ "nntpd" buffer nntp-rlogin-program
+ nntp-address "-l" nntp-rlogin-user-name
(mapconcat 'identity
nntp-rlogin-parameters " "))
(start-process
- "nntpd" nntp-server-buffer "rsh" server
+ "nntpd" buffer nntp-rlogin-program nntp-address
(mapconcat 'identity
nntp-rlogin-parameters " ")))))
+ (set-buffer buffer)
+ (nntp-wait-for-string "^\r*200")
+ (beginning-of-line)
+ (delete-region (point-min) (point))
proc))
-(defun nntp-find-connection-buffer (buffer)
- "Return the process connection buffer tied to BUFFER."
- (let ((process (nntp-find-connection buffer)))
- (when process
- (process-buffer process))))
+(defun nntp-find-group-and-number ()
+ (save-excursion
+ (save-restriction
+ (set-buffer nntp-server-buffer)
+ (narrow-to-region (goto-char (point-min))
+ (or (search-forward "\n\n" nil t) (point-max)))
+ (goto-char (point-min))
+ ;; We first find the number by looking at the status line.
+ (let ((number (and (looking-at "2[0-9][0-9] +\\([0-9]+\\) ")
+ (string-to-int
+ (buffer-substring (match-beginning 1)
+ (match-end 1)))))
+ group newsgroups xref)
+ (and number (zerop number) (setq number nil))
+ ;; Then we find the group name.
+ (setq group
+ (cond
+ ;; If there is only one group in the Newsgroups header,
+ ;; then it seems quite likely that this article comes
+ ;; from that group, I'd say.
+ ((and (setq newsgroups (mail-fetch-field "newsgroups"))
+ (not (string-match "," newsgroups)))
+ newsgroups)
+ ;; If there is more than one group in the Newsgroups
+ ;; header, then the Xref header should be filled out.
+ ;; We hazard a guess that the group that has this
+ ;; article number in the Xref header is the one we are
+ ;; looking for. This might very well be wrong if this
+ ;; article happens to have the same number in several
+ ;; groups, but that's life.
+ ((and (setq xref (mail-fetch-field "xref"))
+ number
+ (string-match (format "\\([^ :]+\\):%d" number) xref))
+ (substring xref (match-beginning 1) (match-end 1)))
+ (t "")))
+ (when (string-match "\r" group)
+ (setq group (substring group 0 (match-beginning 0))))
+ (cons group number)))))
(provide 'nntp)
projects / gnus / blobdiff