;;; pop3.el --- Post Office Protocol (RFC 1460) interface
-;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-;; 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 1996-2015 Free Software Foundation, Inc.
;; Author: Richard L. Pieri <ratinox@peorth.gweep.net>
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
;; Keywords: mail
;; This file is part of GNU Emacs.
;;; Code:
+(eval-when-compile (require 'cl))
+
+(eval-and-compile
+ ;; In Emacs 24, `open-protocol-stream' is an autoloaded alias for
+ ;; `make-network-stream'.
+ (unless (fboundp 'open-protocol-stream)
+ (require 'proto-stream)))
+
(require 'mail-utils)
(defvar parse-time-months)
:version "22.1" ;; Oort Gnus
:group 'pop3)
+(defcustom pop3-stream-length 100
+ "How many messages should be requested at one time.
+The lower the number, the more latency-sensitive the fetching
+will be. If your pop3 server doesn't support streaming at all,
+set this to 1."
+ :type 'number
+ :version "24.1"
+ :group 'pop3)
+
(defcustom pop3-leave-mail-on-server nil
- "*Non-nil if the mail is to be left on the POP server after fetching.
-
-If `pop3-leave-mail-on-server' is non-nil the mail is to be left
-on the POP server after fetching. Note that POP servers maintain
-no state information between sessions, so what the client
-believes is there and what is actually there may not match up.
-If they do not, then you may get duplicate mails or the whole
-thing can fall apart and leave you with a corrupt mailbox."
- ;; We can't use the UILD support from XEmacs mail-lib or cvs.m17n.org:
- ;; http://thread.gmane.org/v9lld8fml4.fsf@marauder.physik.uni-ulm.de
- ;; http://thread.gmane.org/b9yy8hzy9ej.fsf@jpl.org
- ;; Any volunteer to re-implement this?
- :version "22.1" ;; Oort Gnus
- :type 'boolean
+ "Non-nil if the mail is to be left on the POP server after fetching.
+Mails once fetched will never be fetched again by the UIDL control.
+
+If this is neither nil nor a number, all mails will be left on the
+server. If this is a number, leave mails on the server for this many
+days since you first checked new mails. If this is nil, mails will be
+deleted on the server right after fetching.
+
+Gnus users should use the `:leave' keyword in a mail source to direct
+the behavior per server, rather than directly modifying this value.
+
+Note that POP servers maintain no state information between sessions,
+so what the client believes is there and what is actually there may
+not match up. If they do not, then you may get duplicate mails or
+the whole thing can fall apart and leave you with a corrupt mailbox."
+ :version "24.4"
+ :type '(choice (const :tag "Don't leave mails" nil)
+ (const :tag "Leave all mails" t)
+ (number :tag "Leave mails for this many days" :value 14))
:group 'pop3)
-(defcustom pop3-display-message-size-flag t
- "*If non-nil, display the size of the message that is being fetched."
- :version "22.1" ;; Oort Gnus
- :type 'boolean
- :group 'pop3)
+(defcustom pop3-uidl-file "~/.pop3-uidl"
+ "File used to save UIDL."
+ :version "24.4"
+ :type 'file
+ :group 'pop3)
+
+(defcustom pop3-uidl-file-backup '(0 9)
+ "How to backup the UIDL file `pop3-uidl-file' when updating.
+If it is a list of numbers, the first one binds `kept-old-versions' and
+the other binds `kept-new-versions' to keep number of oldest and newest
+versions. Otherwise, the value binds `version-control' (which see).
+
+Note: Backup will take place whenever you check new mails on a server.
+So, you may lose the backup files having been saved before a trouble
+if you set it so as to make too few backups whereas you have access to
+many servers."
+ :version "24.4"
+ :type '(choice (group :tag "Keep versions" :format "\n%v" :indent 3
+ (number :tag "oldest")
+ (number :tag "newest"))
+ (sexp :format "%v"
+ :match (lambda (widget value)
+ (condition-case nil
+ (not (and (numberp (car value))
+ (numberp (car (cdr value)))))
+ (error t)))))
+ :group 'pop3)
(defvar pop3-timestamp nil
"Timestamp returned when initially connected to the POP server.
(defalias 'pop3-accept-process-output 'nnheader-accept-process-output)
;; Borrowed from `nnheader.el':
(defvar pop3-read-timeout
- (if (string-match "windows-nt\\|os/2\\|emx\\|cygwin"
+ (if (string-match "windows-nt\\|os/2\\|cygwin"
(symbol-name system-type))
1.0
0.01)
(truncate pop3-read-timeout))
1000))))))
-(defun pop3-movemail (&optional crashbox)
- "Transfer contents of a maildrop to the specified CRASHBOX."
- (or crashbox (setq crashbox (expand-file-name "~/.crashbox")))
- (let* ((process (pop3-open-server pop3-mailhost pop3-port))
- (crashbuf (get-buffer-create " *pop3-retr*"))
- (n 1)
- message-count
- message-sizes
- (pop3-password pop3-password))
+(defvar pop3-uidl)
+;; List of UIDLs of existing messages at present in the server:
+;; ("UIDL1" "UIDL2" "UIDL3"...)
+
+(defvar pop3-uidl-saved)
+;; Locally saved UIDL data; an alist of the server, the user, and the UIDL
+;; and timestamp pairs:
+;; (("SERVER_A" ("USER_A1" "UIDL1" TIMESTAMP1 "UIDL2" TIMESTAMP2...)
+;; ("USER_A2" "UIDL1" TIMESTAMP1 "UIDL2" TIMESTAMP2...)
+;; ...)
+;; ("SERVER_B" ("USER_B1" "UIDL1" TIMESTAMP1 "UIDL2" TIMESTAMP2...)
+;; ("USER_B2" "UIDL1" TIMESTAMP1 "UIDL2" TIMESTAMP2...)
+;; ...))
+;; Where TIMESTAMP is the most significant two digits of an Emacs time,
+;; i.e. the return value of `current-time'.
+
+;;;###autoload
+(defun pop3-movemail (file)
+ "Transfer contents of a maildrop to the specified FILE.
+Use streaming commands."
+ (let ((process (pop3-open-server pop3-mailhost pop3-port))
+ messages total-size
+ pop3-uidl
+ pop3-uidl-saved)
+ (pop3-logon process)
+ (if pop3-leave-mail-on-server
+ (setq messages (pop3-uidl-stat process)
+ total-size (cadr messages)
+ messages (car messages))
+ (let ((size (pop3-stat process)))
+ (dotimes (i (car size)) (push (1+ i) messages))
+ (setq messages (nreverse messages)
+ total-size (cadr size))))
+ (when messages
+ (with-current-buffer (process-buffer process)
+ (pop3-send-streaming-command process "RETR" messages total-size)
+ (pop3-write-to-file file messages)
+ (unless pop3-leave-mail-on-server
+ (pop3-send-streaming-command process "DELE" messages nil))))
+ (if pop3-leave-mail-on-server
+ (when (prog1 (pop3-uidl-dele process) (pop3-quit process))
+ (pop3-uidl-save))
+ (pop3-quit process)
+ ;; Remove UIDL data for the account that got not to leave mails.
+ (setq pop3-uidl-saved (pop3-uidl-load))
+ (let ((elt (assoc pop3-maildrop
+ (cdr (assoc pop3-mailhost pop3-uidl-saved)))))
+ (when elt
+ (setcdr elt nil)
+ (pop3-uidl-save))))
+ t))
+
+(defun pop3-send-streaming-command (process command messages total-size)
+ (erase-buffer)
+ (let ((count (length messages))
+ (i 1)
+ (start-point (point-min))
+ (waited-for 0))
+ (while messages
+ (process-send-string process (format "%s %d\r\n" command (pop messages)))
+ ;; Only do 100 messages at a time to avoid pipe stalls.
+ (when (zerop (% i pop3-stream-length))
+ (setq start-point
+ (pop3-wait-for-messages process pop3-stream-length
+ total-size start-point))
+ (incf waited-for pop3-stream-length))
+ (incf i))
+ (pop3-wait-for-messages process (- count waited-for)
+ total-size start-point)))
+
+(defun pop3-wait-for-messages (process count total-size start-point)
+ (while (> count 0)
+ (goto-char start-point)
+ (while (or (and (re-search-forward "^\\+OK" nil t)
+ (or (not total-size)
+ (re-search-forward "^\\.\r?\n" nil t)))
+ (re-search-forward "^-ERR " nil t))
+ (decf count)
+ (setq start-point (point)))
+ (unless (memq (process-status process) '(open run))
+ (error "pop3 process died"))
+ (when total-size
+ (let ((size 0))
+ (goto-char (point-min))
+ (while (re-search-forward "^\\+OK.*\n" nil t)
+ (setq size (+ size (- (point))
+ (if (re-search-forward "^\\.\r?\n" nil 'move)
+ (match-beginning 0)
+ (point)))))
+ (message "pop3 retrieved %dKB (%d%%)"
+ (truncate (/ size 1000))
+ (truncate (* (/ (* size 1.0) total-size) 100)))))
+ (pop3-accept-process-output process))
+ start-point)
+
+(defun pop3-write-to-file (file messages)
+ (let ((pop-buffer (current-buffer))
+ (start (point-min))
+ beg end
+ temp-buffer)
+ (with-temp-buffer
+ (setq temp-buffer (current-buffer))
+ (with-current-buffer pop-buffer
+ (goto-char (point-min))
+ (while (re-search-forward "^\\+OK" nil t)
+ (forward-line 1)
+ (setq beg (point))
+ (when (re-search-forward "^\\.\r?\n" nil t)
+ (setq start (point))
+ (forward-line -1)
+ (setq end (point)))
+ (with-current-buffer temp-buffer
+ (goto-char (point-max))
+ (let ((hstart (point)))
+ (insert-buffer-substring pop-buffer beg end)
+ (pop3-clean-region hstart (point))
+ (goto-char (point-max))
+ (pop3-munge-message-separator hstart (point))
+ (when pop3-leave-mail-on-server
+ (pop3-uidl-add-xheader hstart (pop messages)))
+ (goto-char (point-max))))))
+ (let ((coding-system-for-write 'binary))
+ (goto-char (point-min))
+ ;; Check whether something inserted a newline at the start and
+ ;; delete it.
+ (when (eolp)
+ (delete-char 1))
+ (write-region (point-min) (point-max) file nil 'nomesg)))))
+
+(defun pop3-logon (process)
+ (let ((pop3-password pop3-password))
;; for debugging only
(if pop3-debug (switch-to-buffer (process-buffer process)))
;; query for password
((equal 'pass pop3-authentication-scheme)
(pop3-user process pop3-maildrop)
(pop3-pass process))
- (t (error "Invalid POP3 authentication scheme")))
- (setq message-count (car (pop3-stat process)))
- (when (and pop3-display-message-size-flag
- (> message-count 0))
- (setq message-sizes (pop3-list process)))
- (unwind-protect
- (while (<= n message-count)
- (if pop3-display-message-size-flag
- (message "Retrieving message %d of %d from %s... (%.1fk)"
- n message-count pop3-mailhost
- (/ (cdr (assoc n message-sizes))
- 1024.0))
- (message "Retrieving message %d of %d from %s..."
- n message-count pop3-mailhost))
- (pop3-retr process n crashbuf)
- (save-excursion
- (set-buffer crashbuf)
- (let ((coding-system-for-write 'binary))
- (write-region (point-min) (point-max) crashbox t 'nomesg))
- (set-buffer (process-buffer process))
- (while (> (buffer-size) 5000)
- (goto-char (point-min))
- (forward-line 50)
- (delete-region (point-min) (point))))
- (unless pop3-leave-mail-on-server
- (pop3-dele process n))
- (setq n (+ 1 n))
- (pop3-accept-process-output process))
- (when (and pop3-leave-mail-on-server
- (> n 1))
- (message "pop3.el doesn't support UIDL. Setting `pop3-leave-mail-on-server'
-to %s might not give the result you'd expect." pop3-leave-mail-on-server)
- (sit-for 1))
- (pop3-quit process))
- (kill-buffer crashbuf))
- t)
+ (t (error "Invalid POP3 authentication scheme")))))
(defun pop3-get-message-count ()
"Return the number of messages in the maildrop."
(pop3-quit process)
message-count))
-(autoload 'open-tls-stream "tls")
-(autoload 'starttls-open-stream "starttls")
-(autoload 'starttls-negotiate "starttls") ; avoid warning
+(defun pop3-uidl-stat (process)
+ "Return a list of unread message numbers and total size."
+ (pop3-send-command process "UIDL")
+ (let (err messages size)
+ (if (condition-case code
+ (progn
+ (pop3-read-response process)
+ t)
+ (error (setq err (error-message-string code))
+ nil))
+ (let ((start pop3-read-point)
+ saved list)
+ (with-current-buffer (process-buffer process)
+ (while (not (re-search-forward "^\\.\r\n" nil t))
+ (unless (memq (process-status process) '(open run))
+ (error "pop3 server closed the connection"))
+ (pop3-accept-process-output process)
+ (goto-char start))
+ (setq pop3-read-point (point-marker)
+ pop3-uidl nil)
+ (while (progn (forward-line -1) (>= (point) start))
+ (when (looking-at "[0-9]+ \\([^\n\r ]+\\)")
+ (push (match-string 1) pop3-uidl)))
+ (when pop3-uidl
+ (setq pop3-uidl-saved (pop3-uidl-load)
+ saved (cdr (assoc pop3-maildrop
+ (cdr (assoc pop3-mailhost
+ pop3-uidl-saved)))))
+ (let ((i (length pop3-uidl)))
+ (while (> i 0)
+ (unless (member (nth (1- i) pop3-uidl) saved)
+ (push i messages))
+ (decf i)))
+ (when messages
+ (setq list (pop3-list process)
+ size 0)
+ (dolist (msg messages)
+ (setq size (+ size (cdr (assq msg list)))))
+ (list messages size)))))
+ (message "%s doesn't support UIDL (%s), so we try a regressive way..."
+ pop3-mailhost err)
+ (sit-for 1)
+ (setq size (pop3-stat process))
+ (dotimes (i (car size)) (push (1+ i) messages))
+ (setcar size (nreverse messages))
+ size)))
+
+(defun pop3-uidl-dele (process)
+ "Delete messages according to `pop3-leave-mail-on-server'.
+Return non-nil if it is necessary to update the local UIDL file."
+ (let* ((ctime (current-time))
+ (srvr (assoc pop3-mailhost pop3-uidl-saved))
+ (saved (assoc pop3-maildrop (cdr srvr)))
+ i uidl mod new tstamp dele)
+ (setcdr (cdr ctime) nil)
+ ;; Add new messages to the data to be saved.
+ (cond ((and pop3-uidl saved)
+ (setq i (1- (length pop3-uidl)))
+ (while (>= i 0)
+ (unless (member (setq uidl (nth i pop3-uidl)) (cdr saved))
+ (push ctime new)
+ (push uidl new))
+ (decf i)))
+ (pop3-uidl
+ (setq new (apply 'nconc (mapcar (lambda (elt) (list elt ctime))
+ pop3-uidl)))))
+ (when new (setq mod t))
+ ;; List expirable messages and delete them from the data to be saved.
+ (setq ctime (when (numberp pop3-leave-mail-on-server)
+ (/ (+ (* (car ctime) 65536.0) (cadr ctime)) 86400))
+ i (1- (length saved)))
+ (while (> i 0)
+ (if (member (setq uidl (nth (1- i) saved)) pop3-uidl)
+ (progn
+ (setq tstamp (nth i saved))
+ (if (and ctime
+ (> (- ctime (/ (+ (* (car tstamp) 65536.0) (cadr tstamp))
+ 86400))
+ pop3-leave-mail-on-server))
+ ;; Mails to delete.
+ (progn
+ (setq mod t)
+ (push uidl dele))
+ ;; Mails to keep.
+ (push tstamp new)
+ (push uidl new)))
+ ;; Mails having been deleted in the server.
+ (setq mod t))
+ (decf i 2))
+ (cond (saved
+ (setcdr saved new))
+ (srvr
+ (setcdr (last srvr) (list (cons pop3-maildrop new))))
+ (t
+ (add-to-list 'pop3-uidl-saved
+ (list pop3-mailhost (cons pop3-maildrop new))
+ t)))
+ ;; Actually delete the messages in the server.
+ (when dele
+ (setq uidl nil
+ i (length pop3-uidl))
+ (while (> i 0)
+ (when (member (nth (1- i) pop3-uidl) dele)
+ (push i uidl))
+ (decf i))
+ (when uidl
+ (pop3-send-streaming-command process "DELE" uidl nil)))
+ mod))
+
+(defun pop3-uidl-load ()
+ "Load saved UIDL."
+ (when (file-exists-p pop3-uidl-file)
+ (with-temp-buffer
+ (condition-case code
+ (progn
+ (insert-file-contents pop3-uidl-file)
+ (goto-char (point-min))
+ (read (current-buffer)))
+ (error
+ (message "Error while loading %s (%s)"
+ pop3-uidl-file (error-message-string code))
+ (sit-for 1)
+ nil)))))
+
+(defun pop3-uidl-save ()
+ "Save UIDL."
+ (with-temp-buffer
+ (if pop3-uidl-saved
+ (progn
+ (insert "(")
+ (dolist (srvr pop3-uidl-saved)
+ (when (cdr srvr)
+ (insert "(\"" (pop srvr) "\"\n ")
+ (dolist (elt srvr)
+ (when (cdr elt)
+ (insert "(\"" (pop elt) "\"\n ")
+ (while elt
+ (insert (format "\"%s\" %s\n " (pop elt) (pop elt))))
+ (delete-char -4)
+ (insert ")\n ")))
+ (delete-char -3)
+ (if (eq (char-before) ?\))
+ (insert ")\n ")
+ (goto-char (1+ (point-at-bol)))
+ (delete-region (point) (point-max)))))
+ (when (eq (char-before) ? )
+ (delete-char -2))
+ (insert ")\n"))
+ (insert "()\n"))
+ (let ((buffer-file-name pop3-uidl-file)
+ (delete-old-versions t)
+ (kept-new-versions kept-new-versions)
+ (kept-old-versions kept-old-versions)
+ (version-control version-control))
+ (if (consp pop3-uidl-file-backup)
+ (setq kept-new-versions (cadr pop3-uidl-file-backup)
+ kept-old-versions (car pop3-uidl-file-backup)
+ version-control t)
+ (setq version-control pop3-uidl-file-backup))
+ (save-buffer))))
+
+(defun pop3-uidl-add-xheader (start msgno)
+ "Add X-UIDL header."
+ (let ((case-fold-search t))
+ (save-restriction
+ (narrow-to-region start (progn
+ (goto-char start)
+ (search-forward "\n\n" nil 'move)
+ (1- (point))))
+ (goto-char start)
+ (while (re-search-forward "^x-uidl:" nil t)
+ (while (progn
+ (forward-line 1)
+ (memq (char-after) '(?\t ? ))))
+ (delete-region (match-beginning 0) (point)))
+ (goto-char (point-max))
+ (insert "X-UIDL: " (nth (1- msgno) pop3-uidl) "\n"))))
(defcustom pop3-stream-type nil
- "*Transport security type for POP3 connexions.
-This may be either nil (plain connexion), `ssl' (use an
+ "*Transport security type for POP3 connections.
+This may be either nil (plain connection), `ssl' (use an
SSL/TSL-secured stream) or `starttls' (use the starttls mechanism
to turn on TLS security after opening the stream). However, if
-this is nil, `ssl' is assumed for connexions to port
+this is nil, `ssl' is assumed for connections to port
995 (pop3s)."
:version "23.1" ;; No Gnus
:group 'pop3
(const :tag "SSL/TLS" ssl)
(const starttls)))
+(eval-and-compile
+ (if (fboundp 'set-process-query-on-exit-flag)
+ (defalias 'pop3-set-process-query-on-exit-flag
+ 'set-process-query-on-exit-flag)
+ (defalias 'pop3-set-process-query-on-exit-flag
+ 'process-kill-without-query)))
+
(defun pop3-open-server (mailhost port)
"Open TCP connection to MAILHOST on PORT.
Returns the process associated with the connection."
(let ((coding-system-for-read 'binary)
(coding-system-for-write 'binary)
- process)
- (save-excursion
- (set-buffer (get-buffer-create (concat " trace of POP session to "
- mailhost)))
+ result)
+ (with-current-buffer
+ (get-buffer-create (concat " trace of POP session to "
+ mailhost))
(erase-buffer)
(setq pop3-read-point (point-min))
- (setq process
- (cond
- ((or (eq pop3-stream-type 'ssl)
- (and (not pop3-stream-type) (member port '(995 "pop3s"))))
- ;; gnutls-cli, openssl don't accept service names
- (if (or (equal port "pop3s")
- (null port))
- (setq port 995))
- (let ((process (open-tls-stream "POP" (current-buffer)
- mailhost port)))
- (when process
- ;; There's a load of info printed that needs deleting.
- (let ((again 't))
- ;; repeat until
- ;; - either we received the +OK line
- ;; - or accept-process-output timed out without getting
- ;; anything
- (while (and again
- (setq again (memq (process-status process)
- '(open run))))
- (setq again (pop3-accept-process-output process))
- (goto-char (point-max))
- (forward-line -1)
- (cond ((looking-at "\\+OK")
- (setq again nil)
- (delete-region (point-min) (point)))
- ((not again)
- (pop3-quit process)
- (error "POP SSL connexion failed")))))
- process)))
- ((eq pop3-stream-type 'starttls)
- ;; gnutls-cli, openssl don't accept service names
- (if (equal port "pop3")
- (setq port 110))
- (let ((process (starttls-open-stream "POP" (current-buffer)
- mailhost (or port 110))))
- (pop3-send-command process "STLS")
- (let ((response (pop3-read-response process t)))
- (if (and response (string-match "+OK" response))
- (starttls-negotiate process)
- (pop3-quit process)
- (error "POP server doesn't support starttls")))
- process))
- (t
- (open-network-stream "POP" (current-buffer) mailhost port))))
- (let ((response (pop3-read-response process t)))
- (setq pop3-timestamp
- (substring response (or (string-match "<" response) 0)
- (+ 1 (or (string-match ">" response) -1)))))
- process)))
+ (setq result
+ (open-protocol-stream
+ "POP" (current-buffer) mailhost port
+ :type (cond
+ ((or (eq pop3-stream-type 'ssl)
+ (and (not pop3-stream-type)
+ (member port '(995 "pop3s"))))
+ 'tls)
+ (t
+ (or pop3-stream-type 'network)))
+ :warn-unless-encrypted t
+ :capability-command "CAPA\r\n"
+ :end-of-command "^\\(-ERR\\|+OK\\).*\n"
+ :end-of-capability "^\\.\r?\n\\|^-ERR"
+ :success "^\\+OK.*\n"
+ :return-list t
+ :starttls-function
+ (lambda (capabilities)
+ (and (string-match "\\bSTLS\\b" capabilities)
+ "STLS\r\n"))))
+ (when result
+ (let ((response (plist-get (cdr result) :greeting)))
+ (setq pop3-timestamp
+ (substring response (or (string-match "<" response) 0)
+ (+ 1 (or (string-match ">" response) -1)))))
+ (pop3-set-process-query-on-exit-flag (car result) nil)
+ (erase-buffer)
+ (car result)))))
;; Support functions
-(defun pop3-process-filter (process output)
- (save-excursion
- (set-buffer (process-buffer process))
- (goto-char (point-max))
- (insert output)))
-
(defun pop3-send-command (process command)
(set-buffer (process-buffer process))
(goto-char (point-max))
Return the response string if optional second argument is non-nil."
(let ((case-fold-search nil)
match-end)
- (save-excursion
- (set-buffer (process-buffer process))
+ (with-current-buffer (process-buffer process)
(goto-char pop3-read-point)
(while (and (memq (process-status process) '(open run))
(not (search-forward "\r\n" nil t)))
nil
(goto-char (point-max))
(insert "\n"))
- (narrow-to-region (point) (point-max))
- (let ((size (- (point-max) (point-min))))
- (goto-char (point-min))
- (widen)
+ (let ((size (- (point-max) (point))))
(forward-line -1)
(insert (format "Content-Length: %s\n" size)))
)))))
(defun pop3-list (process &optional msg)
"If MSG is nil, return an alist of (MESSAGE-ID . SIZE) pairs.
Otherwise, return the size of the message-id MSG"
- (pop3-send-command process (if msg
+ (pop3-send-command process (if msg
(format "LIST %d" msg)
"LIST"))
(let ((response (pop3-read-response process t)))
(if msg
(string-to-number (nth 2 (split-string response " ")))
(let ((start pop3-read-point) end)
- (save-excursion
- (set-buffer (process-buffer process))
+ (with-current-buffer (process-buffer process)
(while (not (re-search-forward "^\\.\r\n" nil t))
(pop3-accept-process-output process)
(goto-char start))
(mapcar #'(lambda (s) (let ((split (split-string s " ")))
(cons (string-to-number (nth 0 split))
(string-to-number (nth 1 split)))))
- (delete "" (split-string (buffer-substring start end)
- "\r\n"))))))))
+ (split-string (buffer-substring start end) "\r\n" t)))))))
(defun pop3-retr (process msg crashbuf)
"Retrieve message-id MSG to buffer CRASHBUF."
(pop3-send-command process (format "RETR %s" msg))
(pop3-read-response process)
(let ((start pop3-read-point) end)
- (save-excursion
- (set-buffer (process-buffer process))
+ (with-current-buffer (process-buffer process)
(while (not (re-search-forward "^\\.\r\n" nil t))
+ (unless (memq (process-status process) '(open run))
+ (error "pop3 server closed the connection"))
(pop3-accept-process-output process)
(goto-char start))
(setq pop3-read-point (point-marker))
(setq end (point-marker))
(pop3-clean-region start end)
(pop3-munge-message-separator start end)
- (save-excursion
- (set-buffer crashbuf)
+ (with-current-buffer crashbuf
(erase-buffer))
(copy-to-buffer crashbuf start end)
(delete-region start end)
(pop3-send-command process "QUIT")
(pop3-read-response process t)
(if process
- (save-excursion
- (set-buffer (process-buffer process))
+ (with-current-buffer (process-buffer process)
(goto-char (point-max))
(delete-process process))))
\f
;; Possible responses:
;; +OK [all delete marks removed]
+;; UIDL [msg]
+;; Arguments: a message-id (optional)
+;; Restrictions: transaction state; msg must not be deleted
+;; Possible responses:
+;; +OK [uidl listing follows]
+;; -ERR [no such message]
+
;;; UPDATE STATE
;; QUIT
(provide 'pop3)
-;; arch-tag: 2facc142-1d74-498e-82af-4659b64cac12
;;; pop3.el ends here
projects / gnus / blobdiff