X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=lisp%2Fmail-source.el;h=a1af39bbcc7950278a12efbe91c4921e1a143639;hb=25ae8d0af030d77d5fead1083abf8b20259b55c4;hp=777e50400d057de0618939829a551b3d8950e0e1;hpb=f0e38408ebe4249827e9fc21cdf1556a636966d3;p=elisp%2Fgnus.git-

diff --git a/lisp/mail-source.el b/lisp/mail-source.el
index 777e504..a1af39b 100644
--- a/lisp/mail-source.el
+++ b/lisp/mail-source.el
@@ -1,5 +1,5 @@
 ;;; mail-source.el --- functions for fetching mail
-;; Copyright (C) 1999 Free Software Foundation, Inc.
+;; Copyright (C) 1999, 2000 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news, mail
@@ -26,8 +26,10 @@
 ;;; Code:
 
 (eval-when-compile (require 'cl))
+(require 'nnheader)
 (eval-and-compile
-  (autoload 'pop3-movemail "pop3"))
+  (autoload 'pop3-movemail "pop3")
+  (autoload 'pop3-get-message-count "pop3"))
 (require 'format-spec)
 
 (defgroup mail-source nil
@@ -40,6 +42,12 @@ This variable is a list of mail source specifiers."
   :group 'mail-source
   :type 'sexp)
 
+(defcustom mail-source-primary-source nil
+  "*Primary source for incoming mail.
+If non-nil, this maildrop will be checked periodically for new mail."
+  :group 'mail-source
+  :type 'sexp)
+
 (defcustom mail-source-crash-box "~/.emacs-mail-crash-box"
   "File where mail will be stored while processing it."
   :group 'mail-source
@@ -60,15 +68,39 @@ This variable is a list of mail source specifiers."
   :group 'mail-source
   :type 'boolean)
 
+(defcustom mail-source-incoming-file-prefix "Incoming"
+  "Prefix for file name for storing incoming mail"
+  :group 'mail-source
+  :type 'string)
+
+(defcustom mail-source-report-new-mail-interval 5
+  "Interval in minutes between checks for new mail."
+  :group 'mail-source
+  :type 'number)
+
+(defcustom mail-source-idle-time-delay 5
+  "Number of idle seconds to wait before checking for new mail."
+  :group 'mail-source
+  :type 'number)
+
 ;;; Internal variables.
 
 (defvar mail-source-string ""
   "A dynamically bound string that says what the current mail source is.")
 
+(defvar mail-source-new-mail-available nil
+  "Flag indicating when new mail is available.")
+
 (eval-and-compile
+  (defvar mail-source-common-keyword-map
+    '((:plugged))
+    "Mapping from keywords to default values.
+Common keywords should be listed here.")
+
   (defvar mail-source-keyword-map
     '((file
        (:prescript)
+       (:prescript-delay)
        (:postscript)
        (:path (or (getenv "MAIL")
 		  (concat "/usr/spool/mail/" (user-login-name)))))
@@ -78,6 +110,7 @@ This variable is a list of mail source specifiers."
        (:predicate identity))
       (pop
        (:prescript)
+       (:prescript-delay)
        (:postscript)
        (:server (getenv "MAILHOST"))
        (:port 110)
@@ -85,9 +118,29 @@ This variable is a list of mail source specifiers."
        (:program)
        (:function)
        (:password)
+       (:connection)
        (:authentication password))
       (maildir
-       (:path "~/Maildir/new/")))
+       (:path (or (getenv "MAILDIR") "~/Maildir/"))
+       (:subdirs ("new" "cur"))
+       (:function))
+      (imap
+       (:server (getenv "MAILHOST"))
+       (:port)
+       (:stream)
+       (:authentication)
+       (:user (or (user-login-name) (getenv "LOGNAME") (getenv "USER")))
+       (:password)
+       (:mailbox "INBOX")
+       (:predicate "UNSEEN UNDELETED")
+       (:fetchflag "\\Deleted")
+       (:dontexpunge))
+      (webmail
+       (:subtype hotmail)
+       (:user (or (user-login-name) (getenv "LOGNAME") (getenv "USER")))
+       (:password)
+       (:dontexpunge)
+       (:authentication password)))
     "Mapping from keywords to default values.
 All keywords that can be used must be listed here."))
 
@@ -95,17 +148,21 @@ All keywords that can be used must be listed here."))
   '((file mail-source-fetch-file)
     (directory mail-source-fetch-directory)
     (pop mail-source-fetch-pop)
-    (maildir mail-source-fetch-maildir))
+    (maildir mail-source-fetch-maildir)
+    (imap mail-source-fetch-imap)
+    (webmail mail-source-fetch-webmail))
   "A mapping from source type to fetcher function.")
 
 (defvar mail-source-password-cache nil)
 
+(defvar mail-source-plugged t)
+
 ;;; Functions
 
 (eval-and-compile
   (defun mail-source-strip-keyword (keyword)
-  "Strip the leading colon off the KEYWORD."
-  (intern (substring (symbol-name keyword) 1))))
+    "Strip the leading colon off the KEYWORD."
+    (intern (substring (symbol-name keyword) 1))))
 
 (eval-and-compile
   (defun mail-source-bind-1 (type)
@@ -147,6 +204,39 @@ the `mail-source-keyword-map' variable."
 	       (mail-source-value value)
 	     (mail-source-value (cadr default)))))))
 
+(eval-and-compile
+  (defun mail-source-bind-common-1 ()
+    (let* ((defaults mail-source-common-keyword-map)
+	   default bind)
+      (while (setq default (pop defaults))
+	(push (list (mail-source-strip-keyword (car default))
+		    nil)
+	      bind))
+      bind)))
+
+(defun mail-source-set-common-1 (source)
+  (let* ((type (pop source))
+	 (defaults mail-source-common-keyword-map)
+	 (defaults-1 (cdr (assq type mail-source-keyword-map)))
+	 default value keyword)
+    (while (setq default (pop defaults))
+      (set (mail-source-strip-keyword (setq keyword (car default)))
+	   (if (setq value (plist-get source keyword))
+	       (mail-source-value value)
+	     (if (setq value (assq  keyword defaults-1))
+		 (mail-source-value (cadr value))
+	       (mail-source-value (cadr default))))))))
+
+(defmacro mail-source-bind-common (source &rest body)
+  "Return a `let' form that binds all common variables.
+See `mail-source-bind'."
+  `(let ,(mail-source-bind-common-1)
+     (mail-source-set-common-1 source)
+     ,@body))
+
+(put 'mail-source-bind-common 'lisp-indent-function 1)
+(put 'mail-source-bind-common 'edebug-form-spec '(form body))
+
 (defun mail-source-value (value)
   "Return the value of VALUE."
   (cond
@@ -166,24 +256,26 @@ the `mail-source-keyword-map' variable."
 CALLBACK will be called with the name of the file where (some of)
 the mail from SOURCE is put.
 Return the number of files that were found."
-  (save-excursion
-    (let ((function (cadr (assq (car source) mail-source-fetcher-alist)))
-	  (found 0))
-      (unless function
-	(error "%S is an invalid mail source specification" source))
-      ;; If there's anything in the crash box, we do it first.
-      (when (file-exists-p mail-source-crash-box)
-	(message "Processing mail from %s..." mail-source-crash-box)
-	(setq found (mail-source-callback
-                     callback mail-source-crash-box)))
-      (+ found
-         (condition-case err
-             (funcall function source callback)
-           (error
-            (unless (yes-or-no-p
-		     (format "Mail source error (%s).  Continue? " err))
-              (error "Cannot get new mail."))
-            0))))))
+  (mail-source-bind-common source
+    (if (or mail-source-plugged plugged)
+	(save-excursion
+	  (let ((function (cadr (assq (car source) mail-source-fetcher-alist)))
+		(found 0))
+	    (unless function
+	      (error "%S is an invalid mail source specification" source))
+	    ;; If there's anything in the crash box, we do it first.
+	    (when (file-exists-p mail-source-crash-box)
+	      (message "Processing mail from %s..." mail-source-crash-box)
+	      (setq found (mail-source-callback
+			   callback mail-source-crash-box)))
+	    (+ found
+	       (condition-case err
+		   (funcall function source callback)
+		 (error
+		  (unless (yes-or-no-p
+			   (format "Mail source error (%s).  Continue? " err))
+		    (error "Cannot get new mail."))
+		  0))))))))
 
 (defun mail-source-make-complex-temp-name (prefix)
   (let ((newname (make-temp-name prefix))
@@ -211,7 +303,8 @@ Pass INFO on to CALLBACK."
 	  (let ((incoming
 		 (mail-source-make-complex-temp-name
 		  (expand-file-name
-		   "Incoming" mail-source-directory))))
+		   mail-source-incoming-file-prefix
+		   mail-source-directory))))
 	    (unless (file-exists-p (file-name-directory incoming))
 	      (make-directory (file-name-directory incoming) t))
 	    (rename-file mail-source-crash-box incoming t)))))))
@@ -282,6 +375,12 @@ Pass INFO on to CALLBACK."
       ;; Return whether we moved successfully or not.
       to)))
 
+(defun mail-source-movemail-and-remove (from to)
+  "Move FROM to TO using movemail, then remove FROM if empty."
+  (or (not (mail-source-movemail from to))
+      (not (zerop (nth 7 (file-attributes from))))
+      (delete-file from)))
+
 (defvar mail-source-read-passwd nil)
 (defun mail-source-read-passwd (prompt &rest args)
   "Read a password using PROMPT.
@@ -302,6 +401,15 @@ If ARGS, PROMPT is used as an argument to `format'."
   (zerop (call-process shell-file-name nil nil nil
 		       shell-command-switch program)))
 
+(defun mail-source-run-script (script spec &optional delay)
+  (when script
+    (if (and (symbolp script) (fboundp script))
+	(funcall script)
+      (mail-source-call-script
+       (format-spec script spec))))
+  (when delay
+    (sleep-for delay)))
+
 (defun mail-source-call-script (script)
   (let ((background nil))
     (when (string-match "& *$" script)
@@ -317,22 +425,15 @@ If ARGS, PROMPT is used as an argument to `format'."
 (defun mail-source-fetch-file (source callback)
   "Fetcher for single-file sources."
   (mail-source-bind (file source)
-    (when prescript
-      (if (and (symbolp prescript) (fboundp prescript))
-	  (funcall prescript)
-	(mail-source-call-script
-	 (format-spec
-	  prescript (format-spec-make ?t mail-source-crash-box)))))
+    (mail-source-run-script
+     prescript (format-spec-make ?t mail-source-crash-box)
+     prescript-delay)
     (let ((mail-source-string (format "file:%s" path)))
       (if (mail-source-movemail path mail-source-crash-box)
 	  (prog1
 	      (mail-source-callback callback path)
-	    (when prescript
-	      (if (and (symbolp prescript) (fboundp prescript))
-		  (funcall prescript)
-		(mail-source-call-script 
-		 (format-spec
-		  postscript (format-spec-make ?t mail-source-crash-box))))))
+	    (mail-source-run-script
+	     postscript (format-spec-make ?t mail-source-crash-box)))
 	0))))
 
 (defun mail-source-fetch-directory (source callback)
@@ -351,14 +452,11 @@ If ARGS, PROMPT is used as an argument to `format'."
 (defun mail-source-fetch-pop (source callback)
   "Fetcher for single-file sources."
   (mail-source-bind (pop source)
-    (when prescript
-      (if (and (symbolp prescript)
-	       (fboundp prescript))
-	  (funcall prescript)
-	(mail-source-call-script 
-	 (format-spec
-	  prescript (format-spec-make ?p password ?t mail-source-crash-box
-				      ?s server ?P port ?u user)))))
+    (mail-source-run-script
+     prescript
+     (format-spec-make ?p password ?t mail-source-crash-box
+		       ?s server ?P port ?u user)
+     prescript-delay)
     (let ((from (format "%s:%s:%s" server user port))
 	  (mail-source-string (format "pop:%s@%s" user server))
 	  result)
@@ -367,9 +465,7 @@ If ARGS, PROMPT is used as an argument to `format'."
 	      (or password
 		  (cdr (assoc from mail-source-password-cache))
 		  (mail-source-read-passwd
-		   (format "Password for %s at %s: " user server))))
-	(unless (assoc from mail-source-password-cache)
-	  (push (cons from password) mail-source-password-cache)))
+		   (format "Password for %s at %s: " user server)))))
       (when server
 	(setenv "MAILHOST" server))
       (setq result
@@ -389,20 +485,23 @@ If ARGS, PROMPT is used as an argument to `format'."
 		    (pop3-mailhost server)
 		    (pop3-port port)
 		    (pop3-authentication-scheme
-		     (if (eq authentication 'apop) 'apop 'pass)))
+		     (if (eq authentication 'apop) 'apop 'pass))
+		    (pop3-connection-type connection))
 		(save-excursion (pop3-movemail mail-source-crash-box))))))
       (if result
-	  (prog1
-	      (mail-source-callback callback server)
-	    (when postscript
-	      (if (and (symbolp postscript)
-		       (fboundp postscript))
-		  (funcall postscript)
-		(mail-source-call-script 
-		 (format-spec
-		  postscript (format-spec-make
-			      ?p password ?t mail-source-crash-box
-			      ?s server ?P port ?u user))))))
+	  (progn
+	    (when (eq authentication 'password)
+	      (unless (assoc from mail-source-password-cache)
+		(push (cons from password) mail-source-password-cache)))
+	    (prog1
+		(mail-source-callback callback server)
+	      ;; Update display-time's mail flag, if relevant.
+	      (if (equal source mail-source-primary-source)
+		  (setq mail-source-new-mail-available nil))
+	      (mail-source-run-script
+	       postscript
+	       (format-spec-make ?p password ?t mail-source-crash-box
+				 ?s server ?P port ?u user))))
 	;; We nix out the password in case the error
 	;; was because of a wrong password being given.
 	(setq mail-source-password-cache
@@ -410,17 +509,237 @@ If ARGS, PROMPT is used as an argument to `format'."
 		    mail-source-password-cache))
 	0))))
 
+(defun mail-source-check-pop (source)
+  "Check whether there is new mail."
+  (mail-source-bind (pop source)
+    (let ((from (format "%s:%s:%s" server user port))
+	  (mail-source-string (format "pop:%s@%s" user server))
+	  result)
+      (when (eq authentication 'password)
+	(setq password
+	      (or password
+		  (cdr (assoc from mail-source-password-cache))
+		  (mail-source-read-passwd
+		   (format "Password for %s at %s: " user server))))
+	(unless (assoc from mail-source-password-cache)
+	  (push (cons from password) mail-source-password-cache)))
+      (when server
+	(setenv "MAILHOST" server))
+      (setq result
+	    (cond
+	     ;; No easy way to check whether mail is waiting for these.
+	     (program)
+	     (function)
+	     ;; The default is to use pop3.el.
+	     (t
+	      (let ((pop3-password password)
+		    (pop3-maildrop user)
+		    (pop3-mailhost server)
+		    (pop3-port port)
+		    (pop3-authentication-scheme
+		     (if (eq authentication 'apop) 'apop 'pass)))
+		(save-excursion (pop3-get-message-count))))))
+      (if result
+	  ;; Inform display-time that we have new mail.
+	  (setq mail-source-new-mail-available (> result 0))
+	;; We nix out the password in case the error
+	;; was because of a wrong password being given.
+	(setq mail-source-password-cache
+	      (delq (assoc from mail-source-password-cache)
+		    mail-source-password-cache)))
+      result)))
+
+(defun mail-source-new-mail-p ()
+  "Handler for `display-time' to indicate when new mail is available."
+  ;; Only report flag setting; flag is updated on a different schedule.
+  mail-source-new-mail-available)
+
+
+(defvar mail-source-report-new-mail nil)
+(defvar mail-source-report-new-mail-timer nil)
+(defvar mail-source-report-new-mail-idle-timer nil)
+
+(eval-when-compile (require 'timer))
+
+(defun mail-source-start-idle-timer ()
+  ;; Start our idle timer if necessary, so we delay the check until the
+  ;; user isn't typing.
+  (unless mail-source-report-new-mail-idle-timer
+    (setq mail-source-report-new-mail-idle-timer
+	  (run-with-idle-timer
+	   mail-source-idle-time-delay
+	   nil
+	   (lambda ()
+	     (setq mail-source-report-new-mail-idle-timer nil)
+	     (mail-source-check-pop mail-source-primary-source))))
+    ;; Since idle timers created when Emacs is already in the idle
+    ;; state don't get activated until Emacs _next_ becomes idle, we
+    ;; need to force our timer to be considered active now.  We do
+    ;; this by being naughty and poking the timer internals directly
+    ;; (element 0 of the vector is nil if the timer is active).
+    (aset mail-source-report-new-mail-idle-timer 0 nil)))
+
+(defun mail-source-report-new-mail (arg)
+  "Toggle whether to report when new mail is available.
+This only works when `display-time' is enabled."
+  (interactive "P")
+  (if (not mail-source-primary-source)
+      (error "Need to set `mail-source-primary-source' to check for new mail."))
+  (let ((on (if (null arg)
+		(not mail-source-report-new-mail)
+	      (> (prefix-numeric-value arg) 0))))
+    (setq mail-source-report-new-mail on)
+    (and mail-source-report-new-mail-timer
+	 (cancel-timer mail-source-report-new-mail-timer))
+    (and mail-source-report-new-mail-idle-timer
+	 (cancel-timer mail-source-report-new-mail-idle-timer))
+    (setq mail-source-report-new-mail-timer nil)
+    (setq mail-source-report-new-mail-idle-timer nil)
+    (if on
+	(progn
+	  (require 'time)
+	  (setq display-time-mail-function #'mail-source-new-mail-p)
+	  ;; Set up the main timer.
+	  (setq mail-source-report-new-mail-timer
+		(run-at-time t (* 60 mail-source-report-new-mail-interval)
+			     #'mail-source-start-idle-timer))
+	  ;; When you get new mail, clear "Mail" from the mode line.
+	  (add-hook 'nnmail-post-get-new-mail-hook
+		    'display-time-event-handler)
+	  (message "Mail check enabled"))
+      (setq display-time-mail-function nil)
+      (remove-hook 'nnmail-post-get-new-mail-hook
+		   'display-time-event-handler)
+      (message "Mail check disabled"))))
+
 (defun mail-source-fetch-maildir (source callback)
   "Fetcher for maildir sources."
   (mail-source-bind (maildir source)
     (let ((found 0)
-	  (mail-source-string (format "maildir:%s" path)))
-      (dolist (file (directory-files path t))
-	(when (and (file-regular-p file)
-		   (not (rename-file file mail-source-crash-box)))
-	  (incf found (mail-source-callback callback file))))
+	  mail-source-string)
+      (unless (string-match "/$" path)
+	(setq path (concat path "/")))
+      (dolist (subdir subdirs)
+	(when (file-directory-p (concat path subdir))
+	  (setq mail-source-string (format "maildir:%s%s" path subdir))
+	  (dolist (file (directory-files (concat path subdir) t))
+	    (when (and (not (file-directory-p file))
+		       (not (if function
+				(funcall function file mail-source-crash-box)
+			      (let ((coding-system-for-write
+				     nnheader-text-coding-system)
+				    (coding-system-for-read
+				     nnheader-text-coding-system)
+				    (output-coding-system
+				     nnheader-text-coding-system)
+				    (input-coding-system
+				     nnheader-text-coding-system))
+				(with-temp-file mail-source-crash-box
+				  (insert-file-contents file)
+				  (goto-char (point-min))
+;;;                               ;; Unix mail format
+;;; 				  (unless (looking-at "\n*From ")
+;;; 				    (insert "From maildir " 
+;;; 					    (current-time-string) "\n"))
+;;; 				  (while (re-search-forward "^From " nil t)
+;;; 				    (replace-match ">From "))
+				  ;; MMDF mail format
+				  (insert "\001\001\001\001\n")
+				  (goto-char (point-max))
+				  (insert "\n\n"))
+				(delete-file file)))))
+	      (incf found (mail-source-callback callback file))))))
+      found)))
+
+(eval-and-compile
+  (autoload 'imap-open "imap")
+  (autoload 'imap-authenticate "imap")
+  (autoload 'imap-mailbox-select "imap")
+  (autoload 'imap-mailbox-unselect "imap")
+  (autoload 'imap-mailbox-close "imap")
+  (autoload 'imap-search "imap")
+  (autoload 'imap-fetch "imap")
+  (autoload 'imap-close "imap")
+  (autoload 'imap-error-text "imap")
+  (autoload 'imap-message-flags-add "imap")
+  (autoload 'imap-list-to-message-set "imap"))
+
+(defun mail-source-fetch-imap (source callback)
+  "Fetcher for imap sources."
+  (mail-source-bind (imap source)
+    (let ((from (format "%s:%s:%s" server user port))
+	  (found 0)
+	  (buf (get-buffer-create
+		(format " *imap source %s:%s:%s *" server user mailbox)))
+	  (mail-source-string (format "imap:%s:%s" server mailbox))
+	  remove)
+      (if (and (imap-open server port stream authentication buf)
+	       (imap-authenticate
+		user (or (cdr (assoc from mail-source-password-cache))
+			 password) buf)
+	       (imap-mailbox-select mailbox nil buf))
+	  (let (str
+		(coding-system-for-write 'binary)
+		(output-coding-system 'binary))
+	    (with-temp-file mail-source-crash-box
+	      ;; remember password
+	      (with-current-buffer buf
+		(when (or imap-password
+			  (assoc from mail-source-password-cache))
+		  (push (cons from imap-password) mail-source-password-cache)))
+	      ;; if predicate is nil, use all uids
+	      (dolist (uid (imap-search (or predicate "1:*") buf))
+		(when (setq str (imap-fetch uid "RFC822.PEEK" 'RFC822 nil buf))
+		  (push uid remove)
+		  (insert "From imap " (current-time-string) "\n")
+		  (save-excursion
+		    (insert str "\n\n"))
+		  (while (re-search-forward "^From " nil t)
+		    (replace-match ">From "))
+		  (goto-char (point-max))))
+	      (nnheader-ms-strip-cr))
+	    (incf found (mail-source-callback callback server))
+	    (when (and remove fetchflag)
+	      (imap-message-flags-add
+	       (imap-list-to-message-set remove) fetchflag nil buf))
+	    (if dontexpunge
+		(imap-mailbox-unselect buf)
+	      (imap-mailbox-close buf))
+	    (imap-close buf))
+	(imap-close buf)
+	;; We nix out the password in case the error
+	;; was because of a wrong password being given.
+	(setq mail-source-password-cache
+	      (delq (assoc from mail-source-password-cache)
+		    mail-source-password-cache))
+	(error (imap-error-text buf)))
+      (kill-buffer buf)
       found)))
 
+(eval-and-compile
+  (autoload 'webmail-fetch "webmail"))
+
+(defun mail-source-fetch-webmail (source callback)
+  "Fetch for webmail source."
+  (mail-source-bind (webmail source)
+    (let ((mail-source-string (format "webmail:%s:%s" subtype user))
+	  (webmail-newmail-only dontexpunge)
+	  (webmail-move-to-trash-can (not dontexpunge)))
+      (when (eq authentication 'password)
+	(setq password
+	      (or password
+		  (cdr (assoc (format "webmail:%s:%s" subtype user) 
+			      mail-source-password-cache))
+		  (mail-source-read-passwd
+		   (format "Password for %s at %s: " user subtype))))
+	(when (and password
+		   (not (assoc (format "webmail:%s:%s" subtype user) 
+			       mail-source-password-cache)))
+	  (push (cons (format "webmail:%s:%s" subtype user) password) 
+		mail-source-password-cache)))
+      (webmail-fetch mail-source-crash-box subtype user password)
+      (mail-source-callback callback (symbol-name subtype)))))
+
 (provide 'mail-source)
 
 ;;; mail-source.el ends here