-;;; pop3.el --- Post Office Protocol (RFC 1460) interface\r
-\r
-;; Copyright (C) 1996, Free Software Foundation, Inc.\r
-\r
-;; Author: Richard L. Pieri <ratinox@peorth.gweep.net>\r
-;; Keywords: mail, pop3\r
-;; Version: 1.3c\r
-\r
-;; This file is part of GNU Emacs.\r
-\r
-;; GNU Emacs is free software; you can redistribute it and/or modify\r
-;; it under the terms of the GNU General Public License as published by\r
-;; the Free Software Foundation; either version 2, or (at your option)\r
-;; any later version.\r
-\r
-;; GNU Emacs is distributed in the hope that it will be useful,\r
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-;; GNU General Public License for more details.\r
-\r
-;; You should have received a copy of the GNU General Public License\r
-;; along with GNU Emacs; see the file COPYING. If not, write to the\r
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,\r
-;; Boston, MA 02111-1307, USA.\r
-\r
-;;; Commentary:\r
-\r
-;; Most of the standard Post Office Protocol version 3 (RFC 1460) commands\r
-;; are implemented. The LIST command has not been implemented due to lack\r
-;; of actual usefulness.\r
-;; The optional POP3 command TOP has not been implemented.\r
-\r
-;; This program was inspired by Kyle E. Jones's vm-pop program.\r
-\r
-;;; Code:\r
-\r
-(require 'mail-utils)\r
-(provide 'pop3)\r
-\r
-(defvar pop3-maildrop (or user-login-name (getenv "LOGNAME") (getenv "USER") nil)\r
- "*POP3 maildrop.")\r
-(defvar pop3-mailhost (or (getenv "MAILHOST") nil)\r
- "*POP3 mailhost.")\r
-(defvar pop3-port 110\r
- "*POP3 port.")\r
-\r
-(defvar pop3-password-required t\r
- "*Non-nil if a password is required when connecting to POP server.")\r
-(defvar pop3-password nil\r
- "*Password to use when connecting to POP server.")\r
-\r
-(defvar pop3-authentication-scheme 'pass\r
- "*POP3 authentication scheme.\r
-Defaults to 'pass, for the standard USER/PASS authentication. Other valid\r
-values are 'apop.")\r
-\r
-(defvar pop3-timestamp nil\r
- "Timestamp returned when initially connected to the POP server.\r
-Used for APOP authentication.")\r
-\r
-(defvar pop3-read-point nil)\r
-(defvar pop3-debug nil)\r
-\r
-(defun pop3-movemail (&optional crashbox)\r
- "Transfer contents of a maildrop to the specified CRASHBOX."\r
- (or crashbox (setq crashbox (expand-file-name "~/.crashbox")))\r
- (let* ((process (pop3-open-server pop3-mailhost pop3-port))\r
- (crashbuf (get-buffer-create " *pop3-retr*"))\r
- (n 1)\r
- message-count)\r
- ;; for debugging only\r
- (if pop3-debug (switch-to-buffer (process-buffer process)))\r
- (cond ((equal 'apop pop3-authentication-scheme)\r
- (pop3-apop process pop3-maildrop))\r
- ((equal 'pass pop3-authentication-scheme)\r
- (pop3-user process pop3-maildrop)\r
- (pop3-pass process))\r
- (t (error "Invalid POP3 authentication scheme.")))\r
- (setq message-count (car (pop3-stat process)))\r
- (while (<= n message-count)\r
- (message (format "Retrieving message %d of %d from %s..."\r
- n message-count pop3-mailhost))\r
- (pop3-retr process n crashbuf)\r
- (save-excursion\r
- (set-buffer crashbuf)\r
- (append-to-file (point-min) (point-max) crashbox)\r
- (set-buffer (process-buffer process))\r
- (while (> (buffer-size) 5000)\r
- (goto-char (point-min))\r
- (forward-line 50)\r
- (delete-region (point-min) (point))))\r
- (pop3-dele process n)\r
- (setq n (+ 1 n))\r
- (if pop3-debug (sit-for 1) (sit-for 0.1))\r
- )\r
- (pop3-quit process)\r
- (kill-buffer crashbuf)\r
- )\r
- )\r
-\r
-(defun pop3-open-server (mailhost port)\r
- "Open TCP connection to MAILHOST.\r
-Returns the process associated with the connection."\r
- (let ((process-buffer\r
- (get-buffer-create (format "trace of POP session to %s" mailhost)))\r
- (process))\r
- (save-excursion\r
- (set-buffer process-buffer)\r
- (erase-buffer))\r
- (setq process\r
- (open-network-stream "POP" process-buffer mailhost port))\r
- (setq pop3-read-point (point-min))\r
- (let ((response (pop3-read-response process t)))\r
- (setq pop3-timestamp\r
- (substring response (or (string-match "<" response) 0)\r
- (+ 1 (or (string-match ">" response) -1)))))\r
- process\r
- ))\r
-\r
-;; Support functions\r
-\r
-(defun pop3-process-filter (process output)\r
- (save-excursion\r
- (set-buffer (process-buffer process))\r
- (goto-char (point-max))\r
- (insert output)))\r
-\r
-(defun pop3-send-command (process command)\r
- (set-buffer (process-buffer process))\r
- (goto-char (point-max))\r
-;; (if (= (aref command 0) ?P)\r
-;; (insert "PASS <omitted>\r\n")\r
-;; (insert command "\r\n"))\r
- (setq pop3-read-point (point))\r
- (goto-char (point-max))\r
- (process-send-string process command)\r
- (process-send-string process "\r\n")\r
- )\r
-\r
-(defun pop3-read-response (process &optional return)\r
- "Read the response from the server.\r
-Return the response string if optional second argument is non-nil."\r
- (let ((case-fold-search nil)\r
- match-end)\r
- (save-excursion\r
- (set-buffer (process-buffer process))\r
- (goto-char pop3-read-point)\r
- (while (not (search-forward "\r\n" nil t))\r
- (accept-process-output process)\r
- (goto-char pop3-read-point))\r
- (setq match-end (point))\r
- (goto-char pop3-read-point)\r
- (if (looking-at "-ERR")\r
- (error (buffer-substring (point) (- match-end 2)))\r
- (if (not (looking-at "+OK"))\r
- (progn (setq pop3-read-point match-end) nil)\r
- (setq pop3-read-point match-end)\r
- (if return\r
- (buffer-substring (point) match-end)\r
- t)\r
- )))))\r
-\r
-(defun pop3-string-to-list (string &optional regexp)\r
- "Chop up a string into a list."\r
- (let ((list)\r
- (regexp (or regexp " "))\r
- (string (if (string-match "\r" string)\r
- (substring string 0 (match-beginning 0))\r
- string)))\r
- (store-match-data nil)\r
- (while string\r
- (if (string-match regexp string)\r
- (setq list (cons (substring string 0 (- (match-end 0) 1)) list)\r
- string (substring string (match-end 0)))\r
- (setq list (cons string list)\r
- string nil)))\r
- (nreverse list)))\r
-\r
-(defvar pop3-read-passwd nil)\r
-(defun pop3-read-passwd (prompt)\r
- (if (not pop3-read-passwd)\r
- (if (load "passwd" t)\r
- (setq pop3-read-passwd 'read-passwd)\r
- (autoload 'ange-ftp-read-passwd "ange-ftp")\r
- (setq pop3-read-passwd 'ange-ftp-read-passwd)))\r
- (funcall pop3-read-passwd prompt))\r
-\r
-(defun pop3-clean-region (start end)\r
- (setq end (set-marker (make-marker) end))\r
- (save-excursion\r
- (goto-char start)\r
- (while (and (< (point) end) (search-forward "\r\n" end t))\r
- (replace-match "\n" t t))\r
- (goto-char start)\r
- (while (and (< (point) end) (re-search-forward "^\\." end t))\r
- (replace-match "" t t)\r
- (forward-char)))\r
- (set-marker end nil))\r
-\r
-(defun pop3-munge-message-separator (start end)\r
- "Check to see if a message separator exists. If not, generate one."\r
- (save-excursion\r
- (save-restriction\r
- (narrow-to-region start end)\r
- (goto-char (point-min))\r
- (if (not (or (looking-at "From .?") ; Unix mail\r
- (looking-at "\001\001\001\001\n") ; MMDF\r
- (looking-at "BABYL OPTIONS:") ; Babyl\r
- ))\r
- (let ((from (mail-strip-quoted-names (mail-fetch-field "From")))\r
- (date (pop3-string-to-list (mail-fetch-field "Date")))\r
- (From_))\r
- ;; sample date formats I have seen\r
- ;; Date: Tue, 9 Jul 1996 09:04:21 -0400 (EDT)\r
- ;; Date: 08 Jul 1996 23:22:24 -0400\r
- ;; should be\r
- ;; Tue Jul 9 09:04:21 1996\r
- (setq date\r
- (cond ((string-match "[A-Z]" (nth 0 date))\r
- (format "%s %s %s %s %s"\r
- (nth 0 date) (nth 2 date) (nth 1 date)\r
- (nth 4 date) (nth 3 date)))\r
- (t\r
- ;; this really needs to be better but I don't feel\r
- ;; like writing a date to day converter.\r
- (format "Sun %s %s %s %s"\r
- (nth 1 date) (nth 0 date)\r
- (nth 3 date) (nth 2 date)))\r
- ))\r
- (setq From_ (format "From %s %s\n" from date))\r
- (while (string-match "," From_)\r
- (setq From_ (concat (substring From_ 0 (match-beginning 0))\r
- (substring From_ (match-end 0)))))\r
- (goto-char (point-min))\r
- (insert From_))))))\r
-\r
-;; The Command Set\r
-\r
-;; AUTHORIZATION STATE\r
-\r
-(defun pop3-user (process user)\r
- "Send USER information to POP3 server."\r
- (pop3-send-command process (format "USER %s" user))\r
- (let ((response (pop3-read-response process t)))\r
- (if (not (and response (string-match "+OK" response)))\r
- (error (format "USER %s not valid." user)))))\r
-\r
-(defun pop3-pass (process)\r
- "Send authentication information to the server."\r
- (let ((pass pop3-password))\r
- (if (and pop3-password-required (not pass))\r
- (setq pass\r
- (pop3-read-passwd (format "Password for %s: " pop3-maildrop))))\r
- (if pass\r
- (progn\r
- (pop3-send-command process (format "PASS %s" pass))\r
- (let ((response (pop3-read-response process t)))\r
- (if (not (and response (string-match "+OK" response)))\r
- (pop3-quit process)))))\r
- ))\r
-\r
-(defun pop3-apop (process user)\r
- "Send alternate authentication information to the server."\r
- (if (not (fboundp 'md5)) (autoload 'md5 "md5"))\r
- (let ((pass pop3-password))\r
- (if (and pop3-password-required (not pass))\r
- (setq pass\r
- (pop3-read-passwd (format "Password for %s: " pop3-maildrop))))\r
- (if pass\r
- (let ((hash (md5 (concat pop3-timestamp pass))))\r
- (pop3-send-command process (format "APOP %s %s" user hash))\r
- (let ((response (pop3-read-response process t)))\r
- (if (not (and response (string-match "+OK" response)))\r
- (pop3-quit process)))))\r
- ))\r
-\r
-;; TRANSACTION STATE\r
-\r
-(defun pop3-stat (process)\r
- "Return the number of messages in the maildrop and the maildrop's size."\r
- (pop3-send-command process "STAT")\r
- (let ((response (pop3-read-response process t)))\r
- (list (string-to-int (nth 1 (pop3-string-to-list response)))\r
- (string-to-int (nth 2 (pop3-string-to-list response))))\r
- ))\r
-\r
-(defun pop3-list (process &optional msg)\r
- "Scan listing of available messages.\r
-This function currently does nothing.")\r
-\r
-(defun pop3-retr (process msg crashbuf)\r
- "Retrieve message-id MSG to buffer CRASHBUF."\r
- (pop3-send-command process (format "RETR %s" msg))\r
- (pop3-read-response process)\r
- (let ((start pop3-read-point) end)\r
- (save-excursion\r
- (set-buffer (process-buffer process))\r
- (while (not (re-search-forward "^\\.\r\n" nil t))\r
- (accept-process-output process)\r
- ;; bill@att.com ... to save wear and tear on the heap\r
- (if (> (buffer-size) 20000) (sleep-for 1))\r
- (if (> (buffer-size) 50000) (sleep-for 1))\r
- (if (> (buffer-size) 100000) (sleep-for 1))\r
- (if (> (buffer-size) 200000) (sleep-for 1))\r
- (if (> (buffer-size) 500000) (sleep-for 1))\r
- ;; bill@att.com\r
- (goto-char start))\r
- (setq pop3-read-point (point-marker))\r
- (goto-char (match-beginning 0))\r
- (insert "\r\n")\r
- (setq end (point-marker))\r
- (pop3-clean-region start end)\r
- (pop3-munge-message-separator start end)\r
- (save-excursion\r
- (set-buffer crashbuf)\r
- (erase-buffer))\r
- (copy-to-buffer crashbuf start end)\r
- (delete-region start end)\r
- )))\r
-\r
-(defun pop3-dele (process msg)\r
- "Mark message-id MSG as deleted."\r
- (pop3-send-command process (format "DELE %s" msg))\r
- (pop3-read-response process))\r
-\r
-(defun pop3-noop (process msg)\r
- "No-operation."\r
- (pop3-send-command process "NOOP")\r
- (pop3-read-response process))\r
-\r
-(defun pop3-last (process)\r
- "Return highest accessed message-id number for the session."\r
- (pop3-send-command process "LAST")\r
- (let ((response (pop3-read-response process t)))\r
- (string-to-int (nth 1 (pop3-string-to-list response)))\r
- ))\r
-\r
-(defun pop3-rset (process)\r
- "Remove all delete marks from current maildrop."\r
- (pop3-send-command process "RSET")\r
- (pop3-read-response process))\r
-\r
-;; UPDATE\r
-\r
-(defun pop3-quit (process)\r
- "Close connection to POP3 server.\r
-Tell server to remove all messages marked as deleted, unlock the maildrop,\r
-and close the connection."\r
- (pop3-send-command process "QUIT")\r
- (pop3-read-response process t)\r
- (if process\r
- (save-excursion\r
- (set-buffer (process-buffer process))\r
- (goto-char (point-max))\r
- (delete-process process))))\r
-\f\r
-;; Summary of POP3 (Post Office Protocol version 3) commands and responses\r
-\r
-;;; AUTHORIZATION STATE\r
-\r
-;; Initial TCP connection\r
-;; Arguments: none\r
-;; Restrictions: none\r
-;; Possible responses:\r
-;; +OK [POP3 server ready]\r
-\r
-;; USER name\r
-;; Arguments: a server specific user-id (required)\r
-;; Restrictions: authorization state [after unsuccessful USER or PASS\r
-;; Possible responses:\r
-;; +OK [valid user-id]\r
-;; -ERR [invalid user-id]\r
-\r
-;; PASS string\r
-;; Arguments: a server/user-id specific password (required)\r
-;; Restrictions: authorization state, after successful USER\r
-;; Possible responses:\r
-;; +OK [maildrop locked and ready]\r
-;; -ERR [invalid password]\r
-;; -ERR [unable to lock maildrop]\r
-\r
-;;; TRANSACTION STATE\r
-\r
-;; STAT\r
-;; Arguments: none\r
-;; Restrictions: transaction state\r
-;; Possible responses:\r
-;; +OK nn mm [# of messages, size of maildrop]\r
-\r
-;; LIST [msg]\r
-;; Arguments: a message-id (optional)\r
-;; Restrictions: transaction state; msg must not be deleted\r
-;; Possible responses:\r
-;; +OK [scan listing follows]\r
-;; -ERR [no such message]\r
-\r
-;; RETR msg\r
-;; Arguments: a message-id (required)\r
-;; Restrictions: transaction state; msg must not be deleted\r
-;; Possible responses:\r
-;; +OK [message contents follow]\r
-;; -ERR [no such message]\r
-\r
-;; DELE msg\r
-;; Arguments: a message-id (required)\r
-;; Restrictions: transaction state; msg must not be deleted\r
-;; Possible responses:\r
-;; +OK [message deleted]\r
-;; -ERR [no such message]\r
-\r
-;; NOOP\r
-;; Arguments: none\r
-;; Restrictions: transaction state\r
-;; Possible responses:\r
-;; +OK\r
-\r
-;; LAST\r
-;; Arguments: none\r
-;; Restrictions: transaction state\r
-;; Possible responses:\r
-;; +OK nn [highest numbered message accessed]\r
-\r
-;; RSET\r
-;; Arguments: none\r
-;; Restrictions: transaction state\r
-;; Possible responses:\r
-;; +OK [all delete marks removed]\r
-\r
-;;; UPDATE STATE\r
-\r
-;; QUIT\r
-;; Arguments: none\r
-;; Restrictions: none\r
-;; Possible responses:\r
-;; +OK [TCP connection closed]\r
+;;; pop3.el --- Post Office Protocol (RFC 1460) interface
+
+;; Copyright (C) 1996, Free Software Foundation, Inc.
+
+;; Author: Richard L. Pieri <ratinox@peorth.gweep.net>
+;; Keywords: mail, pop3
+;; Version: 1.3c
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; Most of the standard Post Office Protocol version 3 (RFC 1460) commands
+;; are implemented. The LIST command has not been implemented due to lack
+;; of actual usefulness.
+;; The optional POP3 command TOP has not been implemented.
+
+;; This program was inspired by Kyle E. Jones's vm-pop program.
+
+;;; Code:
+
+(require 'mail-utils)
+(provide 'pop3)
+
+(defconst pop3-version "1.3c")
+
+(defvar pop3-maildrop (or user-login-name (getenv "LOGNAME") (getenv "USER") nil)
+ "*POP3 maildrop.")
+(defvar pop3-mailhost (or (getenv "MAILHOST") nil)
+ "*POP3 mailhost.")
+(defvar pop3-port 110
+ "*POP3 port.")
+
+(defvar pop3-password-required t
+ "*Non-nil if a password is required when connecting to POP server.")
+(defvar pop3-password nil
+ "*Password to use when connecting to POP server.")
+
+(defvar pop3-authentication-scheme 'pass
+ "*POP3 authentication scheme.
+Defaults to 'pass, for the standard USER/PASS authentication. Other valid
+values are 'apop.")
+
+(defvar pop3-timestamp nil
+ "Timestamp returned when initially connected to the POP server.
+Used for APOP authentication.")
+
+(defvar pop3-read-point nil)
+(defvar pop3-debug nil)
+
+(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)
+ ;; for debugging only
+ (if pop3-debug (switch-to-buffer (process-buffer process)))
+ (cond ((equal 'apop pop3-authentication-scheme)
+ (pop3-apop process pop3-maildrop))
+ ((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)))
+ (while (<= n message-count)
+ (message (format "Retrieving message %d of %d from %s..."
+ n message-count pop3-mailhost))
+ (pop3-retr process n crashbuf)
+ (save-excursion
+ (set-buffer crashbuf)
+ (append-to-file (point-min) (point-max) crashbox)
+ (set-buffer (process-buffer process))
+ (while (> (buffer-size) 5000)
+ (goto-char (point-min))
+ (forward-line 50)
+ (delete-region (point-min) (point))))
+ (pop3-dele process n)
+ (setq n (+ 1 n))
+ (if pop3-debug (sit-for 1) (sit-for 0.1))
+ )
+ (pop3-quit process)
+ (kill-buffer crashbuf)
+ )
+ )
+
+(defun pop3-open-server (mailhost port)
+ "Open TCP connection to MAILHOST.
+Returns the process associated with the connection."
+ (let ((process-buffer
+ (get-buffer-create (format "trace of POP session to %s" mailhost)))
+ (process))
+ (save-excursion
+ (set-buffer process-buffer)
+ (erase-buffer))
+ (setq process
+ (open-network-stream "POP" process-buffer mailhost port))
+ (setq pop3-read-point (point-min))
+ (let ((response (pop3-read-response process t)))
+ (setq pop3-timestamp
+ (substring response (or (string-match "<" response) 0)
+ (+ 1 (or (string-match ">" response) -1)))))
+ process
+ ))
+
+;; 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))
+;; (if (= (aref command 0) ?P)
+;; (insert "PASS <omitted>\r\n")
+;; (insert command "\r\n"))
+ (setq pop3-read-point (point))
+ (goto-char (point-max))
+ (process-send-string process command)
+ (process-send-string process "\r\n")
+ )
+
+(defun pop3-read-response (process &optional return)
+ "Read the response from the server.
+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))
+ (goto-char pop3-read-point)
+ (while (not (search-forward "\r\n" nil t))
+ (accept-process-output process)
+ (goto-char pop3-read-point))
+ (setq match-end (point))
+ (goto-char pop3-read-point)
+ (if (looking-at "-ERR")
+ (error (buffer-substring (point) (- match-end 2)))
+ (if (not (looking-at "+OK"))
+ (progn (setq pop3-read-point match-end) nil)
+ (setq pop3-read-point match-end)
+ (if return
+ (buffer-substring (point) match-end)
+ t)
+ )))))
+
+(defun pop3-string-to-list (string &optional regexp)
+ "Chop up a string into a list."
+ (let ((list)
+ (regexp (or regexp " "))
+ (string (if (string-match "\r" string)
+ (substring string 0 (match-beginning 0))
+ string)))
+ (store-match-data nil)
+ (while string
+ (if (string-match regexp string)
+ (setq list (cons (substring string 0 (- (match-end 0) 1)) list)
+ string (substring string (match-end 0)))
+ (setq list (cons string list)
+ string nil)))
+ (nreverse list)))
+
+(defvar pop3-read-passwd nil)
+(defun pop3-read-passwd (prompt)
+ (if (not pop3-read-passwd)
+ (if (load "passwd" t)
+ (setq pop3-read-passwd 'read-passwd)
+ (autoload 'ange-ftp-read-passwd "ange-ftp")
+ (setq pop3-read-passwd 'ange-ftp-read-passwd)))
+ (funcall pop3-read-passwd prompt))
+
+(defun pop3-clean-region (start end)
+ (setq end (set-marker (make-marker) end))
+ (save-excursion
+ (goto-char start)
+ (while (and (< (point) end) (search-forward "\r\n" end t))
+ (replace-match "\n" t t))
+ (goto-char start)
+ (while (and (< (point) end) (re-search-forward "^\\." end t))
+ (replace-match "" t t)
+ (forward-char)))
+ (set-marker end nil))
+
+(defun pop3-munge-message-separator (start end)
+ "Check to see if a message separator exists. If not, generate one."
+ (save-excursion
+ (save-restriction
+ (narrow-to-region start end)
+ (goto-char (point-min))
+ (if (not (or (looking-at "From .?") ; Unix mail
+ (looking-at "\001\001\001\001\n") ; MMDF
+ (looking-at "BABYL OPTIONS:") ; Babyl
+ ))
+ (let ((from (mail-strip-quoted-names (mail-fetch-field "From")))
+ (date (pop3-string-to-list (mail-fetch-field "Date")))
+ (From_))
+ ;; sample date formats I have seen
+ ;; Date: Tue, 9 Jul 1996 09:04:21 -0400 (EDT)
+ ;; Date: 08 Jul 1996 23:22:24 -0400
+ ;; should be
+ ;; Tue Jul 9 09:04:21 1996
+ (setq date
+ (cond ((string-match "[A-Z]" (nth 0 date))
+ (format "%s %s %s %s %s"
+ (nth 0 date) (nth 2 date) (nth 1 date)
+ (nth 4 date) (nth 3 date)))
+ (t
+ ;; this really needs to be better but I don't feel
+ ;; like writing a date to day converter.
+ (format "Sun %s %s %s %s"
+ (nth 1 date) (nth 0 date)
+ (nth 3 date) (nth 2 date)))
+ ))
+ (setq From_ (format "From %s %s\n" from date))
+ (while (string-match "," From_)
+ (setq From_ (concat (substring From_ 0 (match-beginning 0))
+ (substring From_ (match-end 0)))))
+ (goto-char (point-min))
+ (insert From_))))))
+
+;; The Command Set
+
+;; AUTHORIZATION STATE
+
+(defun pop3-user (process user)
+ "Send USER information to POP3 server."
+ (pop3-send-command process (format "USER %s" user))
+ (let ((response (pop3-read-response process t)))
+ (if (not (and response (string-match "+OK" response)))
+ (error (format "USER %s not valid." user)))))
+
+(defun pop3-pass (process)
+ "Send authentication information to the server."
+ (let ((pass pop3-password))
+ (if (and pop3-password-required (not pass))
+ (setq pass
+ (pop3-read-passwd (format "Password for %s: " pop3-maildrop))))
+ (if pass
+ (progn
+ (pop3-send-command process (format "PASS %s" pass))
+ (let ((response (pop3-read-response process t)))
+ (if (not (and response (string-match "+OK" response)))
+ (pop3-quit process)))))
+ ))
+
+(defun pop3-apop (process user)
+ "Send alternate authentication information to the server."
+ (if (not (fboundp 'md5)) (autoload 'md5 "md5"))
+ (let ((pass pop3-password))
+ (if (and pop3-password-required (not pass))
+ (setq pass
+ (pop3-read-passwd (format "Password for %s: " pop3-maildrop))))
+ (if pass
+ (let ((hash (md5 (concat pop3-timestamp pass))))
+ (pop3-send-command process (format "APOP %s %s" user hash))
+ (let ((response (pop3-read-response process t)))
+ (if (not (and response (string-match "+OK" response)))
+ (pop3-quit process)))))
+ ))
+
+;; TRANSACTION STATE
+
+(defun pop3-stat (process)
+ "Return the number of messages in the maildrop and the maildrop's size."
+ (pop3-send-command process "STAT")
+ (let ((response (pop3-read-response process t)))
+ (list (string-to-int (nth 1 (pop3-string-to-list response)))
+ (string-to-int (nth 2 (pop3-string-to-list response))))
+ ))
+
+(defun pop3-list (process &optional msg)
+ "Scan listing of available messages.
+This function currently does nothing.")
+
+(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))
+ (while (not (re-search-forward "^\\.\r\n" nil t))
+ (accept-process-output process)
+ ;; bill@att.com ... to save wear and tear on the heap
+ (if (> (buffer-size) 20000) (sleep-for 1))
+ (if (> (buffer-size) 50000) (sleep-for 1))
+ (if (> (buffer-size) 100000) (sleep-for 1))
+ (if (> (buffer-size) 200000) (sleep-for 1))
+ (if (> (buffer-size) 500000) (sleep-for 1))
+ ;; bill@att.com
+ (goto-char start))
+ (setq pop3-read-point (point-marker))
+ (goto-char (match-beginning 0))
+ (backward-char 2)
+ (if (not (looking-at "\r\n"))
+ (insert "\r\n"))
+ (re-search-forward "\\.\r\n")
+ (goto-char (match-beginning 0))
+ (setq end (point-marker))
+ (pop3-clean-region start end)
+ (pop3-munge-message-separator start end)
+ (save-excursion
+ (set-buffer crashbuf)
+ (erase-buffer))
+ (copy-to-buffer crashbuf start end)
+ (delete-region start end)
+ )))
+
+(defun pop3-dele (process msg)
+ "Mark message-id MSG as deleted."
+ (pop3-send-command process (format "DELE %s" msg))
+ (pop3-read-response process))
+
+(defun pop3-noop (process msg)
+ "No-operation."
+ (pop3-send-command process "NOOP")
+ (pop3-read-response process))
+
+(defun pop3-last (process)
+ "Return highest accessed message-id number for the session."
+ (pop3-send-command process "LAST")
+ (let ((response (pop3-read-response process t)))
+ (string-to-int (nth 1 (pop3-string-to-list response)))
+ ))
+
+(defun pop3-rset (process)
+ "Remove all delete marks from current maildrop."
+ (pop3-send-command process "RSET")
+ (pop3-read-response process))
+
+;; UPDATE
+
+(defun pop3-quit (process)
+ "Close connection to POP3 server.
+Tell server to remove all messages marked as deleted, unlock the maildrop,
+and close the connection."
+ (pop3-send-command process "QUIT")
+ (pop3-read-response process t)
+ (if process
+ (save-excursion
+ (set-buffer (process-buffer process))
+ (goto-char (point-max))
+ (delete-process process))))
+\f
+;; Summary of POP3 (Post Office Protocol version 3) commands and responses
+
+;;; AUTHORIZATION STATE
+
+;; Initial TCP connection
+;; Arguments: none
+;; Restrictions: none
+;; Possible responses:
+;; +OK [POP3 server ready]
+
+;; USER name
+;; Arguments: a server specific user-id (required)
+;; Restrictions: authorization state [after unsuccessful USER or PASS
+;; Possible responses:
+;; +OK [valid user-id]
+;; -ERR [invalid user-id]
+
+;; PASS string
+;; Arguments: a server/user-id specific password (required)
+;; Restrictions: authorization state, after successful USER
+;; Possible responses:
+;; +OK [maildrop locked and ready]
+;; -ERR [invalid password]
+;; -ERR [unable to lock maildrop]
+
+;;; TRANSACTION STATE
+
+;; STAT
+;; Arguments: none
+;; Restrictions: transaction state
+;; Possible responses:
+;; +OK nn mm [# of messages, size of maildrop]
+
+;; LIST [msg]
+;; Arguments: a message-id (optional)
+;; Restrictions: transaction state; msg must not be deleted
+;; Possible responses:
+;; +OK [scan listing follows]
+;; -ERR [no such message]
+
+;; RETR msg
+;; Arguments: a message-id (required)
+;; Restrictions: transaction state; msg must not be deleted
+;; Possible responses:
+;; +OK [message contents follow]
+;; -ERR [no such message]
+
+;; DELE msg
+;; Arguments: a message-id (required)
+;; Restrictions: transaction state; msg must not be deleted
+;; Possible responses:
+;; +OK [message deleted]
+;; -ERR [no such message]
+
+;; NOOP
+;; Arguments: none
+;; Restrictions: transaction state
+;; Possible responses:
+;; +OK
+
+;; LAST
+;; Arguments: none
+;; Restrictions: transaction state
+;; Possible responses:
+;; +OK nn [highest numbered message accessed]
+
+;; RSET
+;; Arguments: none
+;; Restrictions: transaction state
+;; Possible responses:
+;; +OK [all delete marks removed]
+
+;;; UPDATE STATE
+
+;; QUIT
+;; Arguments: none
+;; Restrictions: none
+;; Possible responses:
+;; +OK [TCP connection closed]
projects / gnus / commitdiff