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1 | ;;; nnmail.el --- mail support functions for the Gnus mail backends |
2 | ;; Copyright (C) 1995,96,97 Free Software Foundation, Inc. | |
3 | ||
4 | ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no> | |
5 | ;; Keywords: news, mail | |
6 | ||
7 | ;; This file is part of GNU Emacs. | |
8 | ||
9 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation; either version 2, or (at your option) | |
12 | ;; any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
23 | ||
24 | ;;; Commentary: | |
25 | ||
26 | ;;; Code: | |
27 | ||
28 | (require 'nnheader) | |
29 | (require 'timezone) | |
30 | (require 'message) | |
31 | (require 'cl) | |
32 | (require 'custom) | |
33 | ||
34 | (eval-and-compile | |
35 | (autoload 'gnus-error "gnus-util")) | |
36 | ||
37 | (defgroup nnmail nil | |
38 | "Reading mail with Gnus." | |
39 | :group 'gnus) | |
40 | ||
41 | (defgroup nnmail-retrieve nil | |
42 | "Retrieving new mail." | |
43 | :group 'nnmail) | |
44 | ||
45 | (defgroup nnmail-prepare nil | |
46 | "Preparing (or mangling) new mail after retrival." | |
47 | :group 'nnmail) | |
48 | ||
49 | (defgroup nnmail-duplicate nil | |
50 | "Handling of duplicate mail messages." | |
51 | :group 'nnmail) | |
52 | ||
53 | (defgroup nnmail-split nil | |
54 | "Organizing the incomming mail in folders." | |
55 | :group 'nnmail) | |
56 | ||
57 | (defgroup nnmail-files nil | |
58 | "Mail files." | |
59 | :group 'gnus-files | |
60 | :group 'nnmail) | |
61 | ||
62 | (defgroup nnmail-expire nil | |
63 | "Expiring old mail." | |
64 | :group 'nnmail) | |
65 | ||
66 | (defgroup nnmail-procmail nil | |
67 | "Interfacing with procmail and other mail agents." | |
68 | :group 'nnmail) | |
69 | ||
70 | (defgroup nnmail-various nil | |
71 | "Various mail options." | |
72 | :group 'nnmail) | |
73 | ||
74 | (defcustom nnmail-split-methods | |
75 | '(("mail.misc" "")) | |
76 | "Incoming mail will be split according to this variable. | |
77 | ||
78 | If you'd like, for instance, one mail group for mail from the | |
79 | \"4ad-l\" mailing list, one group for junk mail and one for everything | |
80 | else, you could do something like this: | |
81 | ||
82 | (setq nnmail-split-methods | |
83 | '((\"mail.4ad\" \"From:.*4ad\") | |
84 | (\"mail.junk\" \"From:.*Lars\\\\|Subject:.*buy\") | |
85 | (\"mail.misc\" \"\"))) | |
86 | ||
87 | As you can see, this variable is a list of lists, where the first | |
88 | element in each \"rule\" is the name of the group (which, by the way, | |
89 | does not have to be called anything beginning with \"mail\", | |
90 | \"yonka.zow\" is a fine, fine name), and the second is a regexp that | |
91 | nnmail will try to match on the header to find a fit. | |
92 | ||
93 | The second element can also be a function. In that case, it will be | |
94 | called narrowed to the headers with the first element of the rule as | |
95 | the argument. It should return a non-nil value if it thinks that the | |
96 | mail belongs in that group. | |
97 | ||
98 | The last element should always have \"\" as the regexp. | |
99 | ||
100 | This variable can also have a function as its value." | |
101 | :group 'nnmail-split | |
102 | :type '(choice (repeat :tag "Alist" (group (string :tag "Name") regexp)) | |
103 | (function-item nnmail-split-fancy) | |
104 | (function :tag "Other"))) | |
105 | ||
106 | ;; Suggested by Erik Selberg <speed@cs.washington.edu>. | |
107 | (defcustom nnmail-crosspost t | |
108 | "If non-nil, do crossposting if several split methods match the mail. | |
109 | If nil, the first match found will be used." | |
110 | :group 'nnmail-split | |
111 | :type 'boolean) | |
112 | ||
113 | ;; Added by gord@enci.ucalgary.ca (Gordon Matzigkeit). | |
114 | (defcustom nnmail-keep-last-article nil | |
115 | "If non-nil, nnmail will never delete the last expired article in a directory. | |
116 | You may need to set this variable if other programs are putting | |
117 | new mail into folder numbers that Gnus has marked as expired." | |
118 | :group 'nnmail-procmail | |
119 | :group 'nnmail-various | |
120 | :type 'boolean) | |
121 | ||
122 | (defcustom nnmail-use-long-file-names nil | |
123 | "If non-nil the mail backends will use long file and directory names. | |
124 | If nil, groups like \"mail.misc\" will end up in directories like | |
125 | \"mail/misc/\"." | |
126 | :group 'nnmail-files | |
127 | :type 'boolean) | |
128 | ||
129 | (defcustom nnmail-default-file-modes 384 | |
130 | "Set the mode bits of all new mail files to this integer." | |
131 | :group 'nnmail-files | |
132 | :type 'integer) | |
133 | ||
134 | (defcustom nnmail-expiry-wait 7 | |
135 | "*Expirable articles that are older than this will be expired. | |
136 | This variable can either be a number (which will be interpreted as a | |
137 | number of days) -- this doesn't have to be an integer. This variable | |
138 | can also be `immediate' and `never'." | |
139 | :group 'nnmail-expire | |
140 | :type '(choice (const immediate) | |
141 | (integer :tag "days") | |
142 | (const never))) | |
143 | ||
144 | (defcustom nnmail-expiry-wait-function nil | |
145 | "Variable that holds function to specify how old articles should be before they are expired. | |
146 | The function will be called with the name of the group that the | |
147 | expiry is to be performed in, and it should return an integer that | |
148 | says how many days an article can be stored before it is considered | |
149 | \"old\". It can also return the values `never' and `immediate'. | |
150 | ||
151 | Eg.: | |
152 | ||
153 | \(setq nnmail-expiry-wait-function | |
154 | (lambda (newsgroup) | |
155 | (cond ((string-match \"private\" newsgroup) 31) | |
156 | ((string-match \"junk\" newsgroup) 1) | |
157 | ((string-match \"important\" newsgroup) 'never) | |
158 | (t 7))))" | |
159 | :group 'nnmail-expire | |
160 | :type '(choice (const :tag "nnmail-expiry-wait" nil) | |
161 | (function :format "%v" nnmail-))) | |
162 | ||
163 | (defcustom nnmail-cache-accepted-message-ids nil | |
164 | "If non-nil, put Message-IDs of Gcc'd articles into the duplicate cache." | |
165 | :group 'nnmail | |
166 | :type 'boolean) | |
167 | ||
168 | (defcustom nnmail-spool-file | |
169 | (or (getenv "MAIL") | |
170 | (concat "/usr/spool/mail/" (user-login-name))) | |
171 | "Where the mail backends will look for incoming mail. | |
172 | This variable is \"/usr/spool/mail/$user\" by default. | |
173 | If this variable is nil, no mail backends will read incoming mail. | |
174 | If this variable is a list, all files mentioned in this list will be | |
175 | used as incoming mailboxes. | |
176 | If this variable is a directory (i. e., it's name ends with a \"/\"), | |
177 | treat all files in that directory as incoming spool files." | |
178 | :group 'nnmail-files | |
179 | :type 'file) | |
180 | ||
181 | (defcustom nnmail-crash-box "~/.gnus-crash-box" | |
182 | "File where Gnus will store mail while processing it." | |
183 | :group 'nnmail-files | |
184 | :type 'file) | |
185 | ||
186 | (defcustom nnmail-use-procmail nil | |
187 | "*If non-nil, the mail backends will look in `nnmail-procmail-directory' for spool files. | |
188 | The file(s) in `nnmail-spool-file' will also be read." | |
189 | :group 'nnmail-procmail | |
190 | :type 'boolean) | |
191 | ||
192 | (defcustom nnmail-procmail-directory "~/incoming/" | |
193 | "*When using procmail (and the like), incoming mail is put in this directory. | |
194 | The Gnus mail backends will read the mail from this directory." | |
195 | :group 'nnmail-procmail | |
196 | :type 'directory) | |
197 | ||
198 | (defcustom nnmail-procmail-suffix "\\.spool" | |
199 | "*Suffix of files created by procmail (and the like). | |
200 | This variable might be a suffix-regexp to match the suffixes of | |
201 | several files - eg. \".spool[0-9]*\"." | |
202 | :group 'nnmail-procmail | |
203 | :type 'regexp) | |
204 | ||
205 | (defcustom nnmail-resplit-incoming nil | |
206 | "*If non-nil, re-split incoming procmail sorted mail." | |
207 | :group 'nnmail-procmail | |
208 | :type 'boolean) | |
209 | ||
210 | (defcustom nnmail-delete-file-function 'delete-file | |
211 | "Function called to delete files in some mail backends." | |
212 | :group 'nnmail-files | |
213 | :type 'function) | |
214 | ||
215 | (defcustom nnmail-crosspost-link-function | |
216 | (if (string-match "windows-nt\\|emx" (format "%s" system-type)) | |
217 | 'copy-file | |
218 | 'add-name-to-file) | |
219 | "Function called to create a copy of a file. | |
220 | This is `add-name-to-file' by default, which means that crossposts | |
221 | will use hard links. If your file system doesn't allow hard | |
222 | links, you could set this variable to `copy-file' instead." | |
223 | :group 'nnmail-files | |
224 | :type '(radio (function-item add-name-to-file) | |
225 | (function-item copy-file) | |
226 | (function :tag "Other"))) | |
227 | ||
228 | (defcustom nnmail-movemail-program "movemail" | |
229 | "*A command to be executed to move mail from the inbox. | |
230 | The default is \"movemail\". | |
231 | ||
232 | This can also be a function. In that case, the function will be | |
233 | called with two parameters -- the name of the INBOX file, and the file | |
234 | to be moved to." | |
235 | :group 'nnmail-files | |
236 | :group 'nnmail-retrieve | |
237 | :type 'string) | |
238 | ||
239 | (defcustom nnmail-pop-password-required nil | |
240 | "*Non-nil if a password is required when reading mail using POP." | |
241 | :group 'nnmail-retrieve | |
242 | :type 'boolean) | |
243 | ||
244 | (defcustom nnmail-read-incoming-hook | |
245 | (if (eq system-type 'windows-nt) | |
246 | '(nnheader-ms-strip-cr) | |
247 | nil) | |
248 | "Hook that will be run after the incoming mail has been transferred. | |
249 | The incoming mail is moved from `nnmail-spool-file' (which normally is | |
250 | something like \"/usr/spool/mail/$user\") to the user's home | |
251 | directory. This hook is called after the incoming mail box has been | |
252 | emptied, and can be used to call any mail box programs you have | |
253 | running (\"xwatch\", etc.) | |
254 | ||
255 | Eg. | |
256 | ||
257 | \(add-hook 'nnmail-read-incoming-hook | |
258 | (lambda () | |
259 | (start-process \"mailsend\" nil | |
260 | \"/local/bin/mailsend\" \"read\" \"mbox\"))) | |
261 | ||
262 | If you have xwatch running, this will alert it that mail has been | |
263 | read. | |
264 | ||
265 | If you use `display-time', you could use something like this: | |
266 | ||
267 | \(add-hook 'nnmail-read-incoming-hook | |
268 | (lambda () | |
269 | ;; Update the displayed time, since that will clear out | |
270 | ;; the flag that says you have mail. | |
271 | (when (eq (process-status \"display-time\") 'run) | |
272 | (display-time-filter display-time-process \"\"))))" | |
273 | :group 'nnmail-prepare | |
274 | :type 'hook) | |
275 | ||
276 | ;; Suggested by Erik Selberg <speed@cs.washington.edu>. | |
277 | (defcustom nnmail-prepare-incoming-hook nil | |
278 | "Hook called before treating incoming mail. | |
279 | The hook is run in a buffer with all the new, incoming mail." | |
280 | :group 'nnmail-prepare | |
281 | :type 'hook) | |
282 | ||
283 | (defcustom nnmail-prepare-incoming-header-hook nil | |
284 | "Hook called narrowed to the headers of each message. | |
285 | This can be used to remove excessive spaces (and stuff like | |
286 | that) from the headers before splitting and saving the messages." | |
287 | :group 'nnmail-prepare | |
288 | :type 'hook) | |
289 | ||
290 | (defcustom nnmail-prepare-incoming-message-hook nil | |
291 | "Hook called narrowed to each message." | |
292 | :group 'nnmail-prepare | |
293 | :type 'hook) | |
294 | ||
295 | (defcustom nnmail-list-identifiers nil | |
296 | "Regexp that matches list identifiers to be removed. | |
297 | This can also be a list of regexps." | |
298 | :group 'nnmail-prepare | |
299 | :type '(choice (const :tag "none" nil) | |
300 | regexp | |
301 | (repeat regexp))) | |
302 | ||
303 | (defcustom nnmail-pre-get-new-mail-hook nil | |
304 | "Hook called just before starting to handle new incoming mail." | |
305 | :group 'nnmail-retrieve | |
306 | :type 'hook) | |
307 | ||
308 | (defcustom nnmail-post-get-new-mail-hook nil | |
309 | "Hook called just after finishing handling new incoming mail." | |
310 | :group 'nnmail-retrieve | |
311 | :type 'hook) | |
312 | ||
313 | (defcustom nnmail-split-hook nil | |
314 | "Hook called before deciding where to split an article. | |
315 | The functions in this hook are free to modify the buffer | |
316 | contents in any way they choose -- the buffer contents are | |
317 | discarded after running the split process." | |
318 | :group 'nnmail-split | |
319 | :type 'hook) | |
320 | ||
321 | ;; Suggested by Mejia Pablo J <pjm9806@usl.edu>. | |
322 | (defcustom nnmail-tmp-directory nil | |
323 | "*If non-nil, use this directory for temporary storage. | |
324 | Used when reading incoming mail." | |
325 | :group 'nnmail-files | |
326 | :group 'nnmail-retrieve | |
327 | :type '(choice (const :tag "default" nil) | |
328 | (directory :format "%v"))) | |
329 | ||
330 | (defcustom nnmail-large-newsgroup 50 | |
331 | "*The number of the articles which indicates a large newsgroup. | |
332 | If the number of the articles is greater than the value, verbose | |
333 | messages will be shown to indicate the current status." | |
334 | :group 'nnmail-various | |
335 | :type 'integer) | |
336 | ||
337 | (defcustom nnmail-split-fancy "mail.misc" | |
338 | "Incoming mail can be split according to this fancy variable. | |
339 | To enable this, set `nnmail-split-methods' to `nnmail-split-fancy'. | |
340 | ||
341 | The format is this variable is SPLIT, where SPLIT can be one of | |
342 | the following: | |
343 | ||
344 | GROUP: Mail will be stored in GROUP (a string). | |
345 | ||
346 | \(FIELD VALUE SPLIT): If the message field FIELD (a regexp) contains | |
347 | VALUE (a regexp), store the messages as specified by SPLIT. | |
348 | ||
349 | \(| SPLIT...): Process each SPLIT expression until one of them matches. | |
350 | A SPLIT expression is said to match if it will cause the mail | |
351 | message to be stored in one or more groups. | |
352 | ||
353 | \(& SPLIT...): Process each SPLIT expression. | |
354 | ||
355 | \(: FUNCTION optional args): Call FUNCTION with the optional args, in | |
356 | the buffer containing the message headers. The return value FUNCTION | |
357 | should be a split, which is then recursively processed. | |
358 | ||
359 | FIELD must match a complete field name. VALUE must match a complete | |
360 | word according to the `nnmail-split-fancy-syntax-table' syntax table. | |
361 | You can use \".*\" in the regexps to match partial field names or words. | |
362 | ||
363 | FIELD and VALUE can also be lisp symbols, in that case they are expanded | |
364 | as specified in `nnmail-split-abbrev-alist'. | |
365 | ||
366 | GROUP can contain \\& and \\N which will substitute from matching | |
367 | \\(\\) patterns in the previous VALUE. | |
368 | ||
369 | Example: | |
370 | ||
371 | \(setq nnmail-split-methods 'nnmail-split-fancy | |
372 | nnmail-split-fancy | |
373 | ;; Messages from the mailer daemon are not crossposted to any of | |
374 | ;; the ordinary groups. Warnings are put in a separate group | |
375 | ;; from real errors. | |
376 | '(| (\"from\" mail (| (\"subject\" \"warn.*\" \"mail.warning\") | |
377 | \"mail.misc\")) | |
378 | ;; Non-error messages are crossposted to all relevant | |
379 | ;; groups, but we don't crosspost between the group for the | |
380 | ;; (ding) list and the group for other (ding) related mail. | |
381 | (& (| (any \"ding@ifi\\\\.uio\\\\.no\" \"ding.list\") | |
382 | (\"subject\" \"ding\" \"ding.misc\")) | |
383 | ;; Other mailing lists... | |
384 | (any \"procmail@informatik\\\\.rwth-aachen\\\\.de\" \"procmail.list\") | |
385 | (any \"SmartList@informatik\\\\.rwth-aachen\\\\.de\" \"SmartList.list\") | |
386 | ;; People... | |
387 | (any \"larsi@ifi\\\\.uio\\\\.no\" \"people.Lars Magne Ingebrigtsen\")) | |
388 | ;; Unmatched mail goes to the catch all group. | |
389 | \"misc.misc\"))" | |
390 | :group 'nnmail-split | |
391 | ;; Sigh! | |
392 | :type 'sexp) | |
393 | ||
394 | (defcustom nnmail-split-abbrev-alist | |
395 | '((any . "from\\|to\\|cc\\|sender\\|apparently-to\\|resent-from\\|resent-to\\|resent-cc") | |
396 | (mail . "mailer-daemon\\|postmaster\\|uucp") | |
397 | (to . "to\\|cc\\|apparently-to\\|resent-to\\|resent-cc") | |
398 | (from . "from\\|sender\\|resent-from")) | |
399 | "Alist of abbreviations allowed in `nnmail-split-fancy'." | |
400 | :group 'nnmail-split | |
401 | :type '(repeat (cons :format "%v" symbol regexp))) | |
402 | ||
403 | (defcustom nnmail-delete-incoming t | |
404 | "*If non-nil, the mail backends will delete incoming files after | |
405 | splitting." | |
406 | :group 'nnmail-retrieve | |
407 | :type 'boolean) | |
408 | ||
409 | (defcustom nnmail-message-id-cache-length 1000 | |
410 | "*The approximate number of Message-IDs nnmail will keep in its cache. | |
411 | If this variable is nil, no checking on duplicate messages will be | |
412 | performed." | |
413 | :group 'nnmail-duplicate | |
414 | :type '(choice (const :tag "disable" nil) | |
415 | (integer :format "%v"))) | |
416 | ||
417 | (defcustom nnmail-message-id-cache-file "~/.nnmail-cache" | |
418 | "*The file name of the nnmail Message-ID cache." | |
419 | :group 'nnmail-duplicate | |
420 | :group 'nnmail-files | |
421 | :type 'file) | |
422 | ||
423 | (defcustom nnmail-treat-duplicates 'warn | |
424 | "*If non-nil, nnmail keep a cache of Message-IDs to discover mail duplicates. | |
425 | Three values are legal: nil, which means that nnmail is not to keep a | |
426 | Message-ID cache; `warn', which means that nnmail should insert extra | |
427 | headers to warn the user about the duplication (this is the default); | |
428 | and `delete', which means that nnmail will delete duplicated mails. | |
429 | ||
430 | This variable can also be a function. It will be called from a buffer | |
431 | narrowed to the article in question with the Message-ID as a | |
432 | parameter. It should return nil, `warn' or `delete'." | |
433 | :group 'nnmail-duplicate | |
434 | :type '(choice (const :tag "off" nil) | |
435 | (const warn) | |
436 | (const delete))) | |
437 | ||
438 | ;;; Internal variables. | |
439 | ||
440 | (defvar nnmail-split-history nil | |
441 | "List of group/article elements that say where the previous split put messages.") | |
442 | ||
443 | (defvar nnmail-pop-password nil | |
444 | "*Password to use when reading mail from a POP server, if required.") | |
445 | ||
446 | (defvar nnmail-split-fancy-syntax-table nil | |
447 | "Syntax table used by `nnmail-split-fancy'.") | |
448 | (unless (syntax-table-p nnmail-split-fancy-syntax-table) | |
449 | (setq nnmail-split-fancy-syntax-table | |
450 | (copy-syntax-table (standard-syntax-table))) | |
451 | ;; support the %-hack | |
452 | (modify-syntax-entry ?\% "." nnmail-split-fancy-syntax-table)) | |
453 | ||
454 | (defvar nnmail-prepare-save-mail-hook nil | |
455 | "Hook called before saving mail.") | |
456 | ||
457 | (defvar nnmail-moved-inboxes nil | |
458 | "List of inboxes that have been moved.") | |
459 | ||
460 | (defvar nnmail-internal-password nil) | |
461 | ||
462 | \f | |
463 | ||
464 | (defconst nnmail-version "nnmail 1.0" | |
465 | "nnmail version.") | |
466 | ||
467 | \f | |
468 | ||
469 | (defun nnmail-request-post (&optional server) | |
470 | (mail-send-and-exit nil)) | |
471 | ||
472 | (defun nnmail-find-file (file) | |
473 | "Insert FILE in server buffer safely." | |
474 | (set-buffer nntp-server-buffer) | |
475 | (erase-buffer) | |
476 | (let ((format-alist nil) | |
477 | (after-insert-file-functions nil)) | |
478 | (condition-case () | |
479 | (progn (insert-file-contents file) t) | |
480 | (file-error nil)))) | |
481 | ||
482 | (defun nnmail-group-pathname (group dir &optional file) | |
483 | "Make pathname for GROUP." | |
484 | (concat | |
485 | (let ((dir (file-name-as-directory (expand-file-name dir)))) | |
486 | ;; If this directory exists, we use it directly. | |
487 | (if (or nnmail-use-long-file-names | |
488 | (file-directory-p (concat dir group))) | |
489 | (concat dir group "/") | |
490 | ;; If not, we translate dots into slashes. | |
491 | (concat dir (nnheader-replace-chars-in-string group ?. ?/) "/"))) | |
492 | (or file ""))) | |
493 | ||
494 | (defun nnmail-date-to-time (date) | |
495 | "Convert DATE into time." | |
496 | (condition-case () | |
497 | (let* ((d1 (timezone-parse-date date)) | |
498 | (t1 (timezone-parse-time (aref d1 3)))) | |
499 | (apply 'encode-time | |
500 | (mapcar (lambda (el) | |
501 | (and el (string-to-number el))) | |
502 | (list | |
503 | (aref t1 2) (aref t1 1) (aref t1 0) | |
504 | (aref d1 2) (aref d1 1) (aref d1 0) | |
505 | (number-to-string | |
506 | (* 60 (timezone-zone-to-minute (aref d1 4)))))))) | |
507 | ;; If we get an error, then we just return a 0 time. | |
508 | (error (list 0 0)))) | |
509 | ||
510 | (defun nnmail-time-less (t1 t2) | |
511 | "Say whether time T1 is less than time T2." | |
512 | (or (< (car t1) (car t2)) | |
513 | (and (= (car t1) (car t2)) | |
514 | (< (nth 1 t1) (nth 1 t2))))) | |
515 | ||
516 | (defun nnmail-days-to-time (days) | |
517 | "Convert DAYS into time." | |
518 | (let* ((seconds (* 1.0 days 60 60 24)) | |
519 | (rest (expt 2 16)) | |
520 | (ms (condition-case nil (round (/ seconds rest)) | |
521 | (range-error (expt 2 16))))) | |
522 | (list ms (condition-case nil (round (- seconds (* ms rest))) | |
523 | (range-error (expt 2 16)))))) | |
524 | ||
525 | (defun nnmail-time-since (time) | |
526 | "Return the time since TIME, which is either an internal time or a date." | |
527 | (when (stringp time) | |
528 | ;; Convert date strings to internal time. | |
529 | (setq time (nnmail-date-to-time time))) | |
530 | (let* ((current (current-time)) | |
531 | (rest (when (< (nth 1 current) (nth 1 time)) | |
532 | (expt 2 16)))) | |
533 | (list (- (+ (car current) (if rest -1 0)) (car time)) | |
534 | (- (+ (or rest 0) (nth 1 current)) (nth 1 time))))) | |
535 | ||
536 | ;; Function rewritten from rmail.el. | |
537 | (defun nnmail-move-inbox (inbox) | |
538 | "Move INBOX to `nnmail-crash-box'." | |
539 | (if (not (file-writable-p nnmail-crash-box)) | |
540 | (gnus-error 1 "Can't write to crash box %s. Not moving mail." | |
541 | nnmail-crash-box) | |
542 | ;; If the crash box exists and is empty, we delete it. | |
543 | (when (and (file-exists-p nnmail-crash-box) | |
544 | (zerop (nnheader-file-size (file-truename nnmail-crash-box)))) | |
545 | (delete-file nnmail-crash-box)) | |
546 | (let ((inbox (file-truename (expand-file-name inbox))) | |
547 | (tofile (file-truename (expand-file-name nnmail-crash-box))) | |
548 | movemail popmail errors result) | |
549 | (if (setq popmail (string-match | |
550 | "^po:" (file-name-nondirectory inbox))) | |
551 | (setq inbox (file-name-nondirectory inbox)) | |
552 | (setq movemail t) | |
553 | ;; On some systems, /usr/spool/mail/foo is a directory | |
554 | ;; and the actual inbox is /usr/spool/mail/foo/foo. | |
555 | (when (file-directory-p inbox) | |
556 | (setq inbox (expand-file-name (user-login-name) inbox)))) | |
557 | (if (member inbox nnmail-moved-inboxes) | |
558 | ;; We don't try to move an already moved inbox. | |
559 | nil | |
560 | (if popmail | |
561 | (progn | |
562 | (when (and nnmail-pop-password | |
563 | (not nnmail-internal-password)) | |
564 | (setq nnmail-internal-password nnmail-pop-password)) | |
565 | (when (and nnmail-pop-password-required | |
566 | (not nnmail-internal-password)) | |
567 | (setq nnmail-internal-password | |
568 | (nnmail-read-passwd | |
569 | (format "Password for %s: " | |
570 | (substring inbox (+ popmail 3)))))) | |
571 | (message "Getting mail from post office ...")) | |
572 | (when (or (and (file-exists-p tofile) | |
573 | (/= 0 (nnheader-file-size tofile))) | |
574 | (and (file-exists-p inbox) | |
575 | (/= 0 (nnheader-file-size inbox)))) | |
576 | (message "Getting mail from %s..." inbox))) | |
577 | ;; Set TOFILE if have not already done so, and | |
578 | ;; rename or copy the file INBOX to TOFILE if and as appropriate. | |
579 | (cond | |
580 | ((file-exists-p tofile) | |
581 | ;; The crash box exists already. | |
582 | t) | |
583 | ((and (not popmail) | |
584 | (not (file-exists-p inbox))) | |
585 | ;; There is no inbox. | |
586 | (setq tofile nil)) | |
587 | (t | |
588 | ;; If getting from mail spool directory, use movemail to move | |
589 | ;; rather than just renaming, so as to interlock with the | |
590 | ;; mailer. | |
591 | (unwind-protect | |
592 | (save-excursion | |
593 | (setq errors (generate-new-buffer " *nnmail loss*")) | |
594 | (buffer-disable-undo errors) | |
595 | (let ((default-directory "/")) | |
596 | (if (nnheader-functionp nnmail-movemail-program) | |
597 | (condition-case err | |
598 | (progn | |
599 | (funcall nnmail-movemail-program inbox tofile) | |
600 | (setq result 0)) | |
601 | (error | |
602 | (save-excursion | |
603 | (set-buffer errors) | |
604 | (insert (prin1-to-string err)) | |
605 | (setq result 255)))) | |
606 | (setq result | |
607 | (apply | |
608 | 'call-process | |
609 | (append | |
610 | (list | |
611 | (expand-file-name | |
612 | nnmail-movemail-program exec-directory) | |
613 | nil errors nil inbox tofile) | |
614 | (when nnmail-internal-password | |
615 | (list nnmail-internal-password))))))) | |
616 | (if (and (not (buffer-modified-p errors)) | |
617 | (zerop result)) | |
618 | ;; No output => movemail won | |
619 | (progn | |
620 | (unless popmail | |
621 | (when (file-exists-p tofile) | |
622 | (set-file-modes tofile nnmail-default-file-modes))) | |
623 | (push inbox nnmail-moved-inboxes)) | |
624 | (set-buffer errors) | |
625 | ;; There may be a warning about older revisions. We | |
626 | ;; ignore those. | |
627 | (goto-char (point-min)) | |
628 | (if (search-forward "older revision" nil t) | |
629 | (progn | |
630 | (unless popmail | |
631 | (when (file-exists-p tofile) | |
632 | (set-file-modes tofile nnmail-default-file-modes))) | |
633 | (push inbox nnmail-moved-inboxes)) | |
634 | ;; Probably a real error. | |
635 | (subst-char-in-region (point-min) (point-max) ?\n ?\ ) | |
636 | (goto-char (point-max)) | |
637 | (skip-chars-backward " \t") | |
638 | (delete-region (point) (point-max)) | |
639 | (goto-char (point-min)) | |
640 | (when (looking-at "movemail: ") | |
641 | (delete-region (point-min) (match-end 0))) | |
642 | (unless (yes-or-no-p | |
643 | (format "movemail: %s (%d return). Continue? " | |
644 | (buffer-string) result)) | |
645 | (error "%s" (buffer-string))) | |
646 | (setq tofile nil))))))) | |
647 | (message "Getting mail from %s...done" inbox) | |
648 | (and errors | |
649 | (buffer-name errors) | |
650 | (kill-buffer errors)) | |
651 | tofile)))) | |
652 | ||
653 | (defun nnmail-get-active () | |
654 | "Returns an assoc of group names and active ranges. | |
655 | nn*-request-list should have been called before calling this function." | |
656 | (let (group-assoc) | |
657 | ;; Go through all groups from the active list. | |
658 | (save-excursion | |
659 | (set-buffer nntp-server-buffer) | |
660 | (goto-char (point-min)) | |
661 | (while (re-search-forward | |
662 | "^\\([^ \t]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+\\)" nil t) | |
663 | ;; We create an alist with `(GROUP (LOW . HIGH))' elements. | |
664 | (push (list (match-string 1) | |
665 | (cons (string-to-int (match-string 3)) | |
666 | (string-to-int (match-string 2)))) | |
667 | group-assoc))) | |
668 | group-assoc)) | |
669 | ||
670 | (defun nnmail-save-active (group-assoc file-name) | |
671 | "Save GROUP-ASSOC in ACTIVE-FILE." | |
672 | (when file-name | |
673 | (nnheader-temp-write file-name | |
674 | (nnmail-generate-active group-assoc)))) | |
675 | ||
676 | (defun nnmail-generate-active (alist) | |
677 | "Generate an active file from group-alist ALIST." | |
678 | (erase-buffer) | |
679 | (let (group) | |
680 | (while (setq group (pop alist)) | |
681 | (insert (format "%s %d %d y\n" (car group) (cdadr group) | |
682 | (caadr group)))))) | |
683 | ||
684 | (defun nnmail-get-split-group (file group) | |
685 | "Find out whether this FILE is to be split into GROUP only. | |
686 | If GROUP is non-nil and we are using procmail, return the group name | |
687 | only when the file is the correct procmail file. When GROUP is nil, | |
688 | return nil if FILE is a spool file or the procmail group for which it | |
689 | is a spool. If not using procmail, return GROUP." | |
690 | (if (or (eq nnmail-spool-file 'procmail) | |
691 | nnmail-use-procmail) | |
692 | (if (string-match (concat "^" (expand-file-name | |
693 | (file-name-as-directory | |
694 | nnmail-procmail-directory)) | |
695 | "\\([^/]*\\)" nnmail-procmail-suffix "$") | |
696 | (expand-file-name file)) | |
697 | (let ((procmail-group (substring (expand-file-name file) | |
698 | (match-beginning 1) | |
699 | (match-end 1)))) | |
700 | (if group | |
701 | (if (string-equal group procmail-group) | |
702 | group | |
703 | nil) | |
704 | procmail-group)) | |
705 | nil) | |
706 | group)) | |
707 | ||
708 | (defun nnmail-process-babyl-mail-format (func artnum-func) | |
709 | (let ((case-fold-search t) | |
710 | start message-id content-length do-search end) | |
711 | (goto-char (point-min)) | |
712 | (while (not (eobp)) | |
713 | (re-search-forward | |
714 | "\f\n0, *unseen,+\n\\(\\*\\*\\* EOOH \\*\\*\\*\n\\)?" nil t) | |
715 | (goto-char (match-end 0)) | |
716 | (delete-region (match-beginning 0) (match-end 0)) | |
717 | (narrow-to-region | |
718 | (setq start (point)) | |
719 | (progn | |
720 | ;; Skip all the headers in case there are more "From "s... | |
721 | (or (search-forward "\n\n" nil t) | |
722 | (search-forward-regexp "^[^:]*\\( .*\\|\\)$" nil t) | |
723 | (search-forward "\1f\f")) | |
724 | (point))) | |
725 | ;; Unquote the ">From " line, if any. | |
726 | (goto-char (point-min)) | |
727 | (when (looking-at ">From ") | |
728 | (replace-match "X-From-Line: ") ) | |
729 | (run-hooks 'nnmail-prepare-incoming-header-hook) | |
730 | (goto-char (point-max)) | |
731 | ;; Find the Message-ID header. | |
732 | (save-excursion | |
733 | (if (re-search-backward | |
734 | "^Message-ID[ \t]*:[ \n\t]*\\(<[^>]*>\\)" nil t) | |
735 | (setq message-id (buffer-substring (match-beginning 1) | |
736 | (match-end 1))) | |
737 | ;; There is no Message-ID here, so we create one. | |
738 | (save-excursion | |
739 | (when (re-search-backward "^Message-ID[ \t]*:" nil t) | |
740 | (beginning-of-line) | |
741 | (insert "Original-"))) | |
742 | (forward-line -1) | |
743 | (insert "Message-ID: " (setq message-id (nnmail-message-id)) | |
744 | "\n"))) | |
745 | ;; Look for a Content-Length header. | |
746 | (if (not (save-excursion | |
747 | (and (re-search-backward | |
748 | "^Content-Length:[ \t]*\\([0-9]+\\)" start t) | |
749 | (setq content-length (string-to-int | |
750 | (buffer-substring | |
751 | (match-beginning 1) | |
752 | (match-end 1)))) | |
753 | ;; We destroy the header, since none of | |
754 | ;; the backends ever use it, and we do not | |
755 | ;; want to confuse other mailers by having | |
756 | ;; a (possibly) faulty header. | |
757 | (progn (insert "X-") t)))) | |
758 | (setq do-search t) | |
759 | (widen) | |
760 | (if (or (= (+ (point) content-length) (point-max)) | |
761 | (save-excursion | |
762 | (goto-char (+ (point) content-length)) | |
763 | (looking-at "\1f"))) | |
764 | (progn | |
765 | (goto-char (+ (point) content-length)) | |
766 | (setq do-search nil)) | |
767 | (setq do-search t))) | |
768 | (widen) | |
769 | ;; Go to the beginning of the next article - or to the end | |
770 | ;; of the buffer. | |
771 | (when do-search | |
772 | (if (re-search-forward "^\1f" nil t) | |
773 | (goto-char (match-beginning 0)) | |
774 | (goto-char (1- (point-max))))) | |
775 | (delete-char 1) ; delete ^_ | |
776 | (save-excursion | |
777 | (save-restriction | |
778 | (narrow-to-region start (point)) | |
779 | (goto-char (point-min)) | |
780 | (nnmail-check-duplication message-id func artnum-func) | |
781 | (setq end (point-max)))) | |
782 | (goto-char end)))) | |
783 | ||
784 | (defsubst nnmail-search-unix-mail-delim () | |
785 | "Put point at the beginning of the next Unix mbox message." | |
786 | ;; Algorithm used to find the the next article in the | |
787 | ;; brain-dead Unix mbox format: | |
788 | ;; | |
789 | ;; 1) Search for "^From ". | |
790 | ;; 2) If we find it, then see whether the previous | |
791 | ;; line is blank and the next line looks like a header. | |
792 | ;; Then it's possible that this is a mail delim, and we use it. | |
793 | (let ((case-fold-search nil) | |
794 | found) | |
795 | (while (not found) | |
796 | (if (not (re-search-forward "^From " nil t)) | |
797 | (setq found 'no) | |
798 | (save-excursion | |
799 | (beginning-of-line) | |
800 | (when (and (or (bobp) | |
801 | (save-excursion | |
802 | (forward-line -1) | |
803 | (= (following-char) ?\n))) | |
804 | (save-excursion | |
805 | (forward-line 1) | |
806 | (while (looking-at ">From ") | |
807 | (forward-line 1)) | |
808 | (looking-at "[^ \n\t:]+[ \n\t]*:"))) | |
809 | (setq found 'yes))))) | |
810 | (beginning-of-line) | |
811 | (eq found 'yes))) | |
812 | ||
813 | (defun nnmail-search-unix-mail-delim-backward () | |
814 | "Put point at the beginning of the current Unix mbox message." | |
815 | ;; Algorithm used to find the the next article in the | |
816 | ;; brain-dead Unix mbox format: | |
817 | ;; | |
818 | ;; 1) Search for "^From ". | |
819 | ;; 2) If we find it, then see whether the previous | |
820 | ;; line is blank and the next line looks like a header. | |
821 | ;; Then it's possible that this is a mail delim, and we use it. | |
822 | (let ((case-fold-search nil) | |
823 | found) | |
824 | (while (not found) | |
825 | (if (not (re-search-backward "^From " nil t)) | |
826 | (setq found 'no) | |
827 | (save-excursion | |
828 | (beginning-of-line) | |
829 | (when (and (or (bobp) | |
830 | (save-excursion | |
831 | (forward-line -1) | |
832 | (= (following-char) ?\n))) | |
833 | (save-excursion | |
834 | (forward-line 1) | |
835 | (while (looking-at ">From ") | |
836 | (forward-line 1)) | |
837 | (looking-at "[^ \n\t:]+[ \n\t]*:"))) | |
838 | (setq found 'yes))))) | |
839 | (beginning-of-line) | |
840 | (eq found 'yes))) | |
841 | ||
842 | (defun nnmail-process-unix-mail-format (func artnum-func) | |
843 | (let ((case-fold-search t) | |
844 | start message-id content-length end skip head-end) | |
845 | (goto-char (point-min)) | |
846 | (if (not (and (re-search-forward "^From " nil t) | |
847 | (goto-char (match-beginning 0)))) | |
848 | ;; Possibly wrong format? | |
849 | (error "Error, unknown mail format! (Possibly corrupted.)") | |
850 | ;; Carry on until the bitter end. | |
851 | (while (not (eobp)) | |
852 | (setq start (point) | |
853 | end nil) | |
854 | ;; Find the end of the head. | |
855 | (narrow-to-region | |
856 | start | |
857 | (if (search-forward "\n\n" nil t) | |
858 | (1- (point)) | |
859 | ;; This will never happen, but just to be on the safe side -- | |
860 | ;; if there is no head-body delimiter, we search a bit manually. | |
861 | (while (and (looking-at "From \\|[^ \t]+:") | |
862 | (not (eobp))) | |
863 | (forward-line 1)) | |
864 | (point))) | |
865 | ;; Find the Message-ID header. | |
866 | (goto-char (point-min)) | |
867 | (if (re-search-forward "^Message-ID[ \t]*:[ \n\t]*\\(<[^>]+>\\)" nil t) | |
868 | (setq message-id (match-string 1)) | |
869 | (save-excursion | |
870 | (when (re-search-forward "^Message-ID[ \t]*:" nil t) | |
871 | (beginning-of-line) | |
872 | (insert "Original-"))) | |
873 | ;; There is no Message-ID here, so we create one. | |
874 | (forward-line 1) | |
875 | (insert "Message-ID: " (setq message-id (nnmail-message-id)) "\n")) | |
876 | ;; Look for a Content-Length header. | |
877 | (goto-char (point-min)) | |
878 | (if (not (re-search-forward | |
879 | "^Content-Length:[ \t]*\\([0-9]+\\)" nil t)) | |
880 | (setq content-length nil) | |
881 | (setq content-length (string-to-int (match-string 1))) | |
882 | ;; We destroy the header, since none of the backends ever | |
883 | ;; use it, and we do not want to confuse other mailers by | |
884 | ;; having a (possibly) faulty header. | |
885 | (beginning-of-line) | |
886 | (insert "X-")) | |
887 | (run-hooks 'nnmail-prepare-incoming-header-hook) | |
888 | ;; Find the end of this article. | |
889 | (goto-char (point-max)) | |
890 | (widen) | |
891 | (setq head-end (point)) | |
892 | ;; We try the Content-Length value. The idea: skip over the header | |
893 | ;; separator, then check what happens content-length bytes into the | |
894 | ;; message body. This should be either the end ot the buffer, the | |
895 | ;; message separator or a blank line followed by the separator. | |
896 | ;; The blank line should probably be deleted. If neither of the | |
897 | ;; three is met, the content-length header is probably invalid. | |
898 | (when content-length | |
899 | (forward-line 1) | |
900 | (setq skip (+ (point) content-length)) | |
901 | (goto-char skip) | |
902 | (cond ((or (= skip (point-max)) | |
903 | (= (1+ skip) (point-max))) | |
904 | (setq end (point-max))) | |
905 | ((looking-at "From ") | |
906 | (setq end skip)) | |
907 | ((looking-at "[ \t]*\n\\(From \\)") | |
908 | (setq end (match-beginning 1))) | |
909 | (t (setq end nil)))) | |
910 | (if end | |
911 | (goto-char end) | |
912 | ;; No Content-Length, so we find the beginning of the next | |
913 | ;; article or the end of the buffer. | |
914 | (goto-char head-end) | |
915 | (or (nnmail-search-unix-mail-delim) | |
916 | (goto-char (point-max)))) | |
917 | ;; Allow the backend to save the article. | |
918 | (save-excursion | |
919 | (save-restriction | |
920 | (narrow-to-region start (point)) | |
921 | (goto-char (point-min)) | |
922 | (nnmail-check-duplication message-id func artnum-func) | |
923 | (setq end (point-max)))) | |
924 | (goto-char end))))) | |
925 | ||
926 | (defun nnmail-process-mmdf-mail-format (func artnum-func) | |
927 | (let ((delim "^\^A\^A\^A\^A$") | |
928 | (case-fold-search t) | |
929 | start message-id end) | |
930 | (goto-char (point-min)) | |
931 | (if (not (and (re-search-forward delim nil t) | |
932 | (forward-line 1))) | |
933 | ;; Possibly wrong format? | |
934 | (error "Error, unknown mail format! (Possibly corrupted.)") | |
935 | ;; Carry on until the bitter end. | |
936 | (while (not (eobp)) | |
937 | (setq start (point)) | |
938 | ;; Find the end of the head. | |
939 | (narrow-to-region | |
940 | start | |
941 | (if (search-forward "\n\n" nil t) | |
942 | (1- (point)) | |
943 | ;; This will never happen, but just to be on the safe side -- | |
944 | ;; if there is no head-body delimiter, we search a bit manually. | |
945 | (while (and (looking-at "From \\|[^ \t]+:") | |
946 | (not (eobp))) | |
947 | (forward-line 1)) | |
948 | (point))) | |
949 | ;; Find the Message-ID header. | |
950 | (goto-char (point-min)) | |
951 | (if (re-search-forward "^Message-ID[ \t]*:[ \n\t]*\\(<[^>]+>\\)" nil t) | |
952 | (setq message-id (match-string 1)) | |
953 | ;; There is no Message-ID here, so we create one. | |
954 | (save-excursion | |
955 | (when (re-search-backward "^Message-ID[ \t]*:" nil t) | |
956 | (beginning-of-line) | |
957 | (insert "Original-"))) | |
958 | (forward-line 1) | |
959 | (insert "Message-ID: " (setq message-id (nnmail-message-id)) "\n")) | |
960 | (run-hooks 'nnmail-prepare-incoming-header-hook) | |
961 | ;; Find the end of this article. | |
962 | (goto-char (point-max)) | |
963 | (widen) | |
964 | (if (re-search-forward delim nil t) | |
965 | (beginning-of-line) | |
966 | (goto-char (point-max))) | |
967 | ;; Allow the backend to save the article. | |
968 | (save-excursion | |
969 | (save-restriction | |
970 | (narrow-to-region start (point)) | |
971 | (goto-char (point-min)) | |
972 | (nnmail-check-duplication message-id func artnum-func) | |
973 | (setq end (point-max)))) | |
974 | (goto-char end) | |
975 | (forward-line 2))))) | |
976 | ||
977 | (defun nnmail-split-incoming (incoming func &optional exit-func | |
978 | group artnum-func) | |
979 | "Go through the entire INCOMING file and pick out each individual mail. | |
980 | FUNC will be called with the buffer narrowed to each mail." | |
981 | (let (;; If this is a group-specific split, we bind the split | |
982 | ;; methods to just this group. | |
983 | (nnmail-split-methods (if (and group | |
984 | (or (eq nnmail-spool-file 'procmail) | |
985 | nnmail-use-procmail) | |
986 | (not nnmail-resplit-incoming)) | |
987 | (list (list group "")) | |
988 | nnmail-split-methods))) | |
989 | (save-excursion | |
990 | ;; Insert the incoming file. | |
991 | (set-buffer (get-buffer-create " *nnmail incoming*")) | |
992 | (buffer-disable-undo (current-buffer)) | |
993 | (erase-buffer) | |
994 | (nnheader-insert-file-contents incoming) | |
995 | (unless (zerop (buffer-size)) | |
996 | (goto-char (point-min)) | |
997 | (save-excursion (run-hooks 'nnmail-prepare-incoming-hook)) | |
998 | ;; Handle both babyl, MMDF and unix mail formats, since movemail will | |
999 | ;; use the former when fetching from a mailbox, the latter when | |
1000 | ;; fetching from a file. | |
1001 | (cond ((or (looking-at "\^L") | |
1002 | (looking-at "BABYL OPTIONS:")) | |
1003 | (nnmail-process-babyl-mail-format func artnum-func)) | |
1004 | ((looking-at "\^A\^A\^A\^A") | |
1005 | (nnmail-process-mmdf-mail-format func artnum-func)) | |
1006 | (t | |
1007 | (nnmail-process-unix-mail-format func artnum-func)))) | |
1008 | (when exit-func | |
1009 | (funcall exit-func)) | |
1010 | (kill-buffer (current-buffer))))) | |
1011 | ||
1012 | ;; Mail crossposts suggested by Brian Edmonds <edmonds@cs.ubc.ca>. | |
1013 | (defun nnmail-article-group (func) | |
1014 | "Look at the headers and return an alist of groups that match. | |
1015 | FUNC will be called with the group name to determine the article number." | |
1016 | (let ((methods nnmail-split-methods) | |
1017 | (obuf (current-buffer)) | |
1018 | (beg (point-min)) | |
1019 | end group-art method) | |
1020 | (if (and (sequencep methods) (= (length methods) 1)) | |
1021 | ;; If there is only just one group to put everything in, we | |
1022 | ;; just return a list with just this one method in. | |
1023 | (setq group-art | |
1024 | (list (cons (caar methods) (funcall func (caar methods))))) | |
1025 | ;; We do actual comparison. | |
1026 | (save-excursion | |
1027 | ;; Find headers. | |
1028 | (goto-char beg) | |
1029 | (setq end (if (search-forward "\n\n" nil t) (point) (point-max))) | |
1030 | (set-buffer nntp-server-buffer) | |
1031 | (erase-buffer) | |
1032 | ;; Copy the headers into the work buffer. | |
1033 | (insert-buffer-substring obuf beg end) | |
1034 | ;; Fold continuation lines. | |
1035 | (goto-char (point-min)) | |
1036 | (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t) | |
1037 | (replace-match " " t t)) | |
1038 | ;; Allow washing. | |
1039 | (run-hooks 'nnmail-split-hook) | |
1040 | (if (and (symbolp nnmail-split-methods) | |
1041 | (fboundp nnmail-split-methods)) | |
1042 | (let ((split | |
1043 | (condition-case nil | |
1044 | (or (funcall nnmail-split-methods) | |
1045 | '("bogus")) | |
1046 | (error | |
1047 | (message | |
1048 | "Error in `nnmail-split-methods'; using `bogus' mail group") | |
1049 | (sit-for 1) | |
1050 | '("bogus"))))) | |
1051 | (unless (equal split '(junk)) | |
1052 | ;; `nnmail-split-methods' is a function, so we just call | |
1053 | ;; this function here and use the result. | |
1054 | (setq group-art | |
1055 | (mapcar | |
1056 | (lambda (group) (cons group (funcall func group))) | |
1057 | split)))) | |
1058 | ;; Go through the split methods to find a match. | |
1059 | (while (and methods (or nnmail-crosspost (not group-art))) | |
1060 | (goto-char (point-max)) | |
1061 | (setq method (pop methods)) | |
1062 | (if (or methods | |
1063 | (not (equal "" (nth 1 method)))) | |
1064 | (when (and | |
1065 | (ignore-errors | |
1066 | (if (stringp (nth 1 method)) | |
1067 | (re-search-backward (cadr method) nil t) | |
1068 | ;; Function to say whether this is a match. | |
1069 | (funcall (nth 1 method) (car method)))) | |
1070 | ;; Don't enter the article into the same | |
1071 | ;; group twice. | |
1072 | (not (assoc (car method) group-art))) | |
1073 | (push (cons (car method) (funcall func (car method))) | |
1074 | group-art)) | |
1075 | ;; This is the final group, which is used as a | |
1076 | ;; catch-all. | |
1077 | (unless group-art | |
1078 | (setq group-art | |
1079 | (list (cons (car method) | |
1080 | (funcall func (car method))))))))) | |
1081 | ;; See whether the split methods returned `junk'. | |
1082 | (if (equal group-art '(junk)) | |
1083 | nil | |
1084 | (nreverse (delq 'junk group-art))))))) | |
1085 | ||
1086 | (defun nnmail-insert-lines () | |
1087 | "Insert how many lines there are in the body of the mail. | |
1088 | Return the number of characters in the body." | |
1089 | (let (lines chars) | |
1090 | (save-excursion | |
1091 | (goto-char (point-min)) | |
1092 | (when (search-forward "\n\n" nil t) | |
1093 | (setq chars (- (point-max) (point))) | |
1094 | (setq lines (count-lines (point) (point-max))) | |
1095 | (forward-char -1) | |
1096 | (save-excursion | |
1097 | (when (re-search-backward "^Lines: " nil t) | |
1098 | (delete-region (point) (progn (forward-line 1) (point))))) | |
1099 | (beginning-of-line) | |
1100 | (insert (format "Lines: %d\n" (max lines 0))) | |
1101 | chars)))) | |
1102 | ||
1103 | (defun nnmail-insert-xref (group-alist) | |
1104 | "Insert an Xref line based on the (group . article) alist." | |
1105 | (save-excursion | |
1106 | (goto-char (point-min)) | |
1107 | (when (search-forward "\n\n" nil t) | |
1108 | (forward-char -1) | |
1109 | (when (re-search-backward "^Xref: " nil t) | |
1110 | (delete-region (match-beginning 0) | |
1111 | (progn (forward-line 1) (point)))) | |
1112 | (insert (format "Xref: %s" (system-name))) | |
1113 | (while group-alist | |
1114 | (insert (format " %s:%d" (caar group-alist) (cdar group-alist))) | |
1115 | (setq group-alist (cdr group-alist))) | |
1116 | (insert "\n")))) | |
1117 | ||
1118 | ;;; Message washing functions | |
1119 | ||
1120 | (defun nnmail-remove-leading-whitespace () | |
1121 | "Remove excessive whitespace from all headers." | |
1122 | (goto-char (point-min)) | |
1123 | (while (re-search-forward "^\\([^ :]+: \\) +" nil t) | |
1124 | (replace-match "\\1" t))) | |
1125 | ||
1126 | (defun nnmail-remove-list-identifiers () | |
1127 | "Remove list identifiers from Subject headers." | |
1128 | (let ((regexp (if (stringp nnmail-list-identifiers) nnmail-list-identifiers | |
1129 | (mapconcat 'identity nnmail-list-identifiers "\\|")))) | |
1130 | (when regexp | |
1131 | (goto-char (point-min)) | |
1132 | (when (re-search-forward | |
1133 | (concat "^Subject: +\\(Re: +\\)?\\(" regexp "\\) *") | |
1134 | nil t) | |
1135 | (delete-region (match-beginning 2) (match-end 0)))))) | |
1136 | ||
1137 | (defun nnmail-remove-tabs () | |
1138 | "Translate TAB characters into SPACE characters." | |
1139 | (subst-char-in-region (point-min) (point-max) ?\t ? t)) | |
1140 | ||
1141 | ;;; Utility functions | |
1142 | ||
1143 | ;; Written by byer@mv.us.adobe.com (Scott Byer). | |
1144 | (defun nnmail-make-complex-temp-name (prefix) | |
1145 | (let ((newname (make-temp-name prefix)) | |
1146 | (newprefix prefix)) | |
1147 | (while (file-exists-p newname) | |
1148 | (setq newprefix (concat newprefix "x")) | |
1149 | (setq newname (make-temp-name newprefix))) | |
1150 | newname)) | |
1151 | ||
1152 | ;; Written by Per Abrahamsen <amanda@iesd.auc.dk>. | |
1153 | ||
1154 | (defun nnmail-split-fancy () | |
1155 | "Fancy splitting method. | |
1156 | See the documentation for the variable `nnmail-split-fancy' for documentation." | |
1157 | (let ((syntab (syntax-table))) | |
1158 | (unwind-protect | |
1159 | (progn | |
1160 | (set-syntax-table nnmail-split-fancy-syntax-table) | |
1161 | (nnmail-split-it nnmail-split-fancy)) | |
1162 | (set-syntax-table syntab)))) | |
1163 | ||
1164 | (defvar nnmail-split-cache nil) | |
1165 | ;; Alist of split expressions their equivalent regexps. | |
1166 | ||
1167 | (defun nnmail-split-it (split) | |
1168 | ;; Return a list of groups matching SPLIT. | |
1169 | (cond | |
1170 | ;; nil split | |
1171 | ((null split) | |
1172 | nil) | |
1173 | ||
1174 | ;; A group name. Do the \& and \N subs into the string. | |
1175 | ((stringp split) | |
1176 | (list (nnmail-expand-newtext split))) | |
1177 | ||
1178 | ;; Junk the message. | |
1179 | ((eq split 'junk) | |
1180 | (list 'junk)) | |
1181 | ||
1182 | ;; Builtin & operation. | |
1183 | ((eq (car split) '&) | |
1184 | (apply 'nconc (mapcar 'nnmail-split-it (cdr split)))) | |
1185 | ||
1186 | ;; Builtin | operation. | |
1187 | ((eq (car split) '|) | |
1188 | (let (done) | |
1189 | (while (and (not done) (cdr split)) | |
1190 | (setq split (cdr split) | |
1191 | done (nnmail-split-it (car split)))) | |
1192 | done)) | |
1193 | ||
1194 | ;; Builtin : operation. | |
1195 | ((eq (car split) ':) | |
1196 | (nnmail-split-it (eval (cdr split)))) | |
1197 | ||
1198 | ;; Check the cache for the regexp for this split. | |
1199 | ;; FIX FIX FIX could avoid calling assq twice here | |
1200 | ((assq split nnmail-split-cache) | |
1201 | (goto-char (point-max)) | |
1202 | ;; FIX FIX FIX problem with re-search-backward is that if you have | |
1203 | ;; a split: (from "foo-\\(bar\\|baz\\)@gnus.org "mail.foo.\\1") | |
1204 | ;; and someone mails a message with 'To: foo-bar@gnus.org' and | |
1205 | ;; 'CC: foo-baz@gnus.org', we'll pick 'mail.foo.baz' as the group | |
1206 | ;; if the cc line is a later header, even though the other choice | |
1207 | ;; is probably better. Also, this routine won't do a crosspost | |
1208 | ;; when there are two different matches. | |
1209 | ;; I guess you could just make this more determined, and it could | |
1210 | ;; look for still more matches prior to this one, and recurse | |
1211 | ;; on each of the multiple matches hit. Of course, then you'd | |
1212 | ;; want to make sure that nnmail-article-group or nnmail-split-fancy | |
1213 | ;; removed duplicates, since there might be more of those. | |
1214 | ;; I guess we could also remove duplicates in the & split case, since | |
1215 | ;; that's the only thing that can introduce them. | |
1216 | (when (re-search-backward (cdr (assq split nnmail-split-cache)) nil t) | |
1217 | ;; Someone might want to do a \N sub on this match, so get the | |
1218 | ;; correct match positions. | |
1219 | (goto-char (match-end 0)) | |
1220 | (let ((value (nth 1 split))) | |
1221 | (re-search-backward (if (symbolp value) | |
1222 | (cdr (assq value nnmail-split-abbrev-alist)) | |
1223 | value) | |
1224 | (match-end 1))) | |
1225 | (nnmail-split-it (nth 2 split)))) | |
1226 | ||
1227 | ;; Not in cache, compute a regexp for the field/value pair. | |
1228 | (t | |
1229 | (let* ((field (nth 0 split)) | |
1230 | (value (nth 1 split)) | |
1231 | (regexp (concat "^\\(\\(" | |
1232 | (if (symbolp field) | |
1233 | (cdr (assq field nnmail-split-abbrev-alist)) | |
1234 | field) | |
1235 | "\\):.*\\)\\<\\(" | |
1236 | (if (symbolp value) | |
1237 | (cdr (assq value nnmail-split-abbrev-alist)) | |
1238 | value) | |
1239 | "\\)\\>"))) | |
1240 | (push (cons split regexp) nnmail-split-cache) | |
1241 | ;; Now that it's in the cache, just call nnmail-split-it again | |
1242 | ;; on the same split, which will find it immediately in the cache. | |
1243 | (nnmail-split-it split))))) | |
1244 | ||
1245 | (defun nnmail-expand-newtext (newtext) | |
1246 | (let ((len (length newtext)) | |
1247 | (pos 0) | |
1248 | c expanded beg N did-expand) | |
1249 | (while (< pos len) | |
1250 | (setq beg pos) | |
1251 | (while (and (< pos len) | |
1252 | (not (= (aref newtext pos) ?\\))) | |
1253 | (setq pos (1+ pos))) | |
1254 | (unless (= beg pos) | |
1255 | (push (substring newtext beg pos) expanded)) | |
1256 | (when (< pos len) | |
1257 | ;; we hit a \, expand it. | |
1258 | (setq did-expand t) | |
1259 | (setq pos (1+ pos)) | |
1260 | (setq c (aref newtext pos)) | |
1261 | (if (not (or (= c ?\&) | |
1262 | (and (>= c ?1) | |
1263 | (<= c ?9)))) | |
1264 | ;; \ followed by some character we don't expand | |
1265 | (push (char-to-string c) expanded) | |
1266 | ;; \& or \N | |
1267 | (if (= c ?\&) | |
1268 | (setq N 0) | |
1269 | (setq N (- c ?0))) | |
1270 | (when (match-beginning N) | |
1271 | (push (buffer-substring (match-beginning N) (match-end N)) | |
1272 | expanded)))) | |
1273 | (setq pos (1+ pos))) | |
1274 | (if did-expand | |
1275 | (apply 'concat (nreverse expanded)) | |
1276 | newtext))) | |
1277 | ||
1278 | ;; Get a list of spool files to read. | |
1279 | (defun nnmail-get-spool-files (&optional group) | |
1280 | (if (null nnmail-spool-file) | |
1281 | ;; No spool file whatsoever. | |
1282 | nil | |
1283 | (let* ((procmails | |
1284 | ;; If procmail is used to get incoming mail, the files | |
1285 | ;; are stored in this directory. | |
1286 | (and (file-exists-p nnmail-procmail-directory) | |
1287 | (or (eq nnmail-spool-file 'procmail) | |
1288 | nnmail-use-procmail) | |
1289 | (directory-files | |
1290 | nnmail-procmail-directory | |
1291 | t (concat (if group (concat "^" group) "") | |
1292 | nnmail-procmail-suffix "$")))) | |
1293 | (p procmails) | |
1294 | (crash (when (and (file-exists-p nnmail-crash-box) | |
1295 | (> (nnheader-file-size | |
1296 | (file-truename nnmail-crash-box)) | |
1297 | 0)) | |
1298 | (list nnmail-crash-box)))) | |
1299 | ;; Remove any directories that inadvertently match the procmail | |
1300 | ;; suffix, which might happen if the suffix is "". | |
1301 | (while p | |
1302 | (when (file-directory-p (car p)) | |
1303 | (setq procmails (delete (car p) procmails))) | |
1304 | (setq p (cdr p))) | |
1305 | ;; Return the list of spools. | |
1306 | (append | |
1307 | crash | |
1308 | (cond ((and group | |
1309 | (or (eq nnmail-spool-file 'procmail) | |
1310 | nnmail-use-procmail) | |
1311 | procmails) | |
1312 | procmails) | |
1313 | ((and group | |
1314 | (eq nnmail-spool-file 'procmail)) | |
1315 | nil) | |
1316 | ((listp nnmail-spool-file) | |
1317 | (nconc | |
1318 | (apply | |
1319 | 'nconc | |
1320 | (mapcar | |
1321 | (lambda (file) | |
1322 | (if (and (not (string-match "^po:" file)) | |
1323 | (file-directory-p file)) | |
1324 | (nnheader-directory-regular-files file) | |
1325 | (list file))) | |
1326 | nnmail-spool-file)) | |
1327 | procmails)) | |
1328 | ((stringp nnmail-spool-file) | |
1329 | (if (and (not (string-match "^po:" nnmail-spool-file)) | |
1330 | (file-directory-p nnmail-spool-file)) | |
1331 | (nconc | |
1332 | (nnheader-directory-regular-files nnmail-spool-file) | |
1333 | procmails) | |
1334 | (cons nnmail-spool-file procmails))) | |
1335 | ((eq nnmail-spool-file 'pop) | |
1336 | (cons (format "po:%s" (user-login-name)) procmails)) | |
1337 | (t | |
1338 | procmails)))))) | |
1339 | ||
1340 | ;; Activate a backend only if it isn't already activated. | |
1341 | ;; If FORCE, re-read the active file even if the backend is | |
1342 | ;; already activated. | |
1343 | (defun nnmail-activate (backend &optional force) | |
1344 | (let (file timestamp file-time) | |
1345 | (if (or (not (symbol-value (intern (format "%s-group-alist" backend)))) | |
1346 | force | |
1347 | (and (setq file (ignore-errors | |
1348 | (symbol-value (intern (format "%s-active-file" | |
1349 | backend))))) | |
1350 | (setq file-time (nth 5 (file-attributes file))) | |
1351 | (or (not | |
1352 | (setq timestamp | |
1353 | (condition-case () | |
1354 | (symbol-value (intern | |
1355 | (format "%s-active-timestamp" | |
1356 | backend))) | |
1357 | (error 'none)))) | |
1358 | (not (consp timestamp)) | |
1359 | (equal timestamp '(0 0)) | |
1360 | (> (nth 0 file-time) (nth 0 timestamp)) | |
1361 | (and (= (nth 0 file-time) (nth 0 timestamp)) | |
1362 | (> (nth 1 file-time) (nth 1 timestamp)))))) | |
1363 | (save-excursion | |
1364 | (or (eq timestamp 'none) | |
1365 | (set (intern (format "%s-active-timestamp" backend)) | |
1366 | file-time)) | |
1367 | (funcall (intern (format "%s-request-list" backend))))) | |
1368 | t)) | |
1369 | ||
1370 | (defun nnmail-message-id () | |
1371 | (concat "<" (message-unique-id) "@totally-fudged-out-message-id>")) | |
1372 | ||
1373 | ;;; | |
1374 | ;;; nnmail duplicate handling | |
1375 | ;;; | |
1376 | ||
1377 | (defvar nnmail-cache-buffer nil) | |
1378 | ||
1379 | (defun nnmail-cache-open () | |
1380 | (if (or (not nnmail-treat-duplicates) | |
1381 | (and nnmail-cache-buffer | |
1382 | (buffer-name nnmail-cache-buffer))) | |
1383 | () ; The buffer is open. | |
1384 | (save-excursion | |
1385 | (set-buffer | |
1386 | (setq nnmail-cache-buffer | |
1387 | (get-buffer-create " *nnmail message-id cache*"))) | |
1388 | (buffer-disable-undo (current-buffer)) | |
1389 | (when (file-exists-p nnmail-message-id-cache-file) | |
1390 | (nnheader-insert-file-contents nnmail-message-id-cache-file)) | |
1391 | (set-buffer-modified-p nil) | |
1392 | (current-buffer)))) | |
1393 | ||
1394 | (defun nnmail-cache-close () | |
1395 | (when (and nnmail-cache-buffer | |
1396 | nnmail-treat-duplicates | |
1397 | (buffer-name nnmail-cache-buffer) | |
1398 | (buffer-modified-p nnmail-cache-buffer)) | |
1399 | (save-excursion | |
1400 | (set-buffer nnmail-cache-buffer) | |
1401 | ;; Weed out the excess number of Message-IDs. | |
1402 | (goto-char (point-max)) | |
1403 | (when (search-backward "\n" nil t nnmail-message-id-cache-length) | |
1404 | (progn | |
1405 | (beginning-of-line) | |
1406 | (delete-region (point-min) (point)))) | |
1407 | ;; Save the buffer. | |
1408 | (or (file-exists-p (file-name-directory nnmail-message-id-cache-file)) | |
1409 | (make-directory (file-name-directory nnmail-message-id-cache-file) | |
1410 | t)) | |
1411 | (nnmail-write-region (point-min) (point-max) | |
1412 | nnmail-message-id-cache-file nil 'silent) | |
1413 | (set-buffer-modified-p nil) | |
1414 | (setq nnmail-cache-buffer nil) | |
1415 | (kill-buffer (current-buffer))))) | |
1416 | ||
1417 | (defun nnmail-cache-insert (id) | |
1418 | (when nnmail-treat-duplicates | |
1419 | (unless (gnus-buffer-live-p nnmail-cache-buffer) | |
1420 | (nnmail-cache-open)) | |
1421 | (save-excursion | |
1422 | (set-buffer nnmail-cache-buffer) | |
1423 | (goto-char (point-max)) | |
1424 | (insert id "\n")))) | |
1425 | ||
1426 | (defun nnmail-cache-id-exists-p (id) | |
1427 | (when nnmail-treat-duplicates | |
1428 | (save-excursion | |
1429 | (set-buffer nnmail-cache-buffer) | |
1430 | (goto-char (point-max)) | |
1431 | (search-backward id nil t)))) | |
1432 | ||
1433 | (defun nnmail-fetch-field (header) | |
1434 | (save-excursion | |
1435 | (save-restriction | |
1436 | (message-narrow-to-head) | |
1437 | (message-fetch-field header)))) | |
1438 | ||
1439 | (defun nnmail-check-duplication (message-id func artnum-func) | |
1440 | (run-hooks 'nnmail-prepare-incoming-message-hook) | |
1441 | ;; If this is a duplicate message, then we do not save it. | |
1442 | (let* ((duplication (nnmail-cache-id-exists-p message-id)) | |
1443 | (case-fold-search t) | |
1444 | (action (when duplication | |
1445 | (cond | |
1446 | ((memq nnmail-treat-duplicates '(warn delete)) | |
1447 | nnmail-treat-duplicates) | |
1448 | ((nnheader-functionp nnmail-treat-duplicates) | |
1449 | (funcall nnmail-treat-duplicates message-id)) | |
1450 | (t | |
1451 | nnmail-treat-duplicates)))) | |
1452 | group-art) | |
1453 | ;; Let the backend save the article (or not). | |
1454 | (cond | |
1455 | ((not duplication) | |
1456 | (nnmail-cache-insert message-id) | |
1457 | (funcall func (setq group-art | |
1458 | (nreverse (nnmail-article-group artnum-func))))) | |
1459 | ((eq action 'delete) | |
1460 | (setq group-art nil)) | |
1461 | ((eq action 'warn) | |
1462 | ;; We insert a warning. | |
1463 | (let ((case-fold-search t)) | |
1464 | (goto-char (point-min)) | |
1465 | (re-search-forward "^message-id[ \t]*:" nil t) | |
1466 | (beginning-of-line) | |
1467 | (insert | |
1468 | "Gnus-Warning: This is a duplicate of message " message-id "\n") | |
1469 | (funcall func (setq group-art | |
1470 | (nreverse (nnmail-article-group artnum-func)))))) | |
1471 | (t | |
1472 | (funcall func (setq group-art | |
1473 | (nreverse (nnmail-article-group artnum-func)))))) | |
1474 | ;; Add the group-art list to the history list. | |
1475 | (if group-art | |
1476 | (push group-art nnmail-split-history) | |
1477 | (delete-region (point-min) (point-max))))) | |
1478 | ||
1479 | ;;; Get new mail. | |
1480 | ||
1481 | (defun nnmail-get-value (&rest args) | |
1482 | (let ((sym (intern (apply 'format args)))) | |
1483 | (when (boundp sym) | |
1484 | (symbol-value sym)))) | |
1485 | ||
1486 | (defun nnmail-get-new-mail (method exit-func temp | |
1487 | &optional group spool-func) | |
1488 | "Read new incoming mail." | |
1489 | ;; Nix out the previous split history. | |
1490 | (unless group | |
1491 | (setq nnmail-split-history nil)) | |
1492 | (let* ((spools (nnmail-get-spool-files group)) | |
1493 | (group-in group) | |
1494 | incoming incomings spool) | |
1495 | (when (and (nnmail-get-value "%s-get-new-mail" method) | |
1496 | nnmail-spool-file) | |
1497 | ;; We first activate all the groups. | |
1498 | (nnmail-activate method) | |
1499 | ;; Allow the user to hook. | |
1500 | (run-hooks 'nnmail-pre-get-new-mail-hook) | |
1501 | ;; Open the message-id cache. | |
1502 | (nnmail-cache-open) | |
1503 | ;; The we go through all the existing spool files and split the | |
1504 | ;; mail from each. | |
1505 | (while spools | |
1506 | (setq spool (pop spools)) | |
1507 | ;; We read each spool file if either the spool is a POP-mail | |
1508 | ;; spool, or the file exists. We can't check for the | |
1509 | ;; existence of POPped mail. | |
1510 | (when (or (string-match "^po:" spool) | |
1511 | (and (file-exists-p (file-truename spool)) | |
1512 | (> (nnheader-file-size (file-truename spool)) 0))) | |
1513 | (nnheader-message 3 "%s: Reading incoming mail..." method) | |
1514 | (when (and (nnmail-move-inbox spool) | |
1515 | (file-exists-p nnmail-crash-box)) | |
1516 | ;; There is new mail. We first find out if all this mail | |
1517 | ;; is supposed to go to some specific group. | |
1518 | (setq group (nnmail-get-split-group spool group-in)) | |
1519 | ;; We split the mail | |
1520 | (nnmail-split-incoming | |
1521 | nnmail-crash-box (intern (format "%s-save-mail" method)) | |
1522 | spool-func group (intern (format "%s-active-number" method))) | |
1523 | ;; Check whether the inbox is to be moved to the special tmp dir. | |
1524 | (setq incoming | |
1525 | (nnmail-make-complex-temp-name | |
1526 | (expand-file-name | |
1527 | (if nnmail-tmp-directory | |
1528 | (concat | |
1529 | (file-name-as-directory nnmail-tmp-directory) | |
1530 | (file-name-nondirectory | |
1531 | (concat (file-name-as-directory temp) "Incoming"))) | |
1532 | (concat (file-name-as-directory temp) "Incoming"))))) | |
1533 | (rename-file nnmail-crash-box incoming t) | |
1534 | (push incoming incomings)))) | |
1535 | ;; If we did indeed read any incoming spools, we save all info. | |
1536 | (when incomings | |
1537 | (nnmail-save-active | |
1538 | (nnmail-get-value "%s-group-alist" method) | |
1539 | (nnmail-get-value "%s-active-file" method)) | |
1540 | (when exit-func | |
1541 | (funcall exit-func)) | |
1542 | (run-hooks 'nnmail-read-incoming-hook) | |
1543 | (nnheader-message 3 "%s: Reading incoming mail...done" method)) | |
1544 | ;; Close the message-id cache. | |
1545 | (nnmail-cache-close) | |
1546 | ;; Allow the user to hook. | |
1547 | (run-hooks 'nnmail-post-get-new-mail-hook) | |
1548 | ;; Delete all the temporary files. | |
1549 | (while incomings | |
1550 | (setq incoming (pop incomings)) | |
1551 | (and nnmail-delete-incoming | |
1552 | (file-exists-p incoming) | |
1553 | (file-writable-p incoming) | |
1554 | (delete-file incoming)))))) | |
1555 | ||
1556 | (defun nnmail-expired-article-p (group time force &optional inhibit) | |
1557 | "Say whether an article that is TIME old in GROUP should be expired." | |
1558 | (if force | |
1559 | t | |
1560 | (let ((days (or (and nnmail-expiry-wait-function | |
1561 | (funcall nnmail-expiry-wait-function group)) | |
1562 | nnmail-expiry-wait))) | |
1563 | (cond ((or (eq days 'never) | |
1564 | (and (not force) | |
1565 | inhibit)) | |
1566 | ;; This isn't an expirable group. | |
1567 | nil) | |
1568 | ((eq days 'immediate) | |
1569 | ;; We expire all articles on sight. | |
1570 | t) | |
1571 | ((equal time '(0 0)) | |
1572 | ;; This is an ange-ftp group, and we don't have any dates. | |
1573 | nil) | |
1574 | ((numberp days) | |
1575 | (setq days (nnmail-days-to-time days)) | |
1576 | ;; Compare the time with the current time. | |
1577 | (nnmail-time-less days (nnmail-time-since time))))))) | |
1578 | ||
1579 | (defvar nnmail-read-passwd nil) | |
1580 | (defun nnmail-read-passwd (prompt &rest args) | |
1581 | "Read a password using PROMPT. | |
1582 | If ARGS, PROMPT is used as an argument to `format'." | |
1583 | (let ((prompt | |
1584 | (if args | |
1585 | (apply 'format prompt args) | |
1586 | prompt))) | |
1587 | (unless nnmail-read-passwd | |
1588 | (if (load "passwd" t) | |
1589 | (setq nnmail-read-passwd 'read-passwd) | |
1590 | (unless (fboundp 'ange-ftp-read-passwd) | |
1591 | (autoload 'ange-ftp-read-passwd "ange-ftp")) | |
1592 | (setq nnmail-read-passwd 'ange-ftp-read-passwd))) | |
1593 | (funcall nnmail-read-passwd prompt))) | |
1594 | ||
1595 | (defun nnmail-check-syntax () | |
1596 | "Check (and modify) the syntax of the message in the current buffer." | |
1597 | (save-restriction | |
1598 | (message-narrow-to-head) | |
1599 | (let ((case-fold-search t)) | |
1600 | (unless (re-search-forward "^Message-ID[ \t]*:" nil t) | |
1601 | (insert "Message-ID: " (nnmail-message-id) "\n"))))) | |
1602 | ||
1603 | (defun nnmail-write-region (start end filename &optional append visit lockname) | |
1604 | "Do a `write-region', and then set the file modes." | |
1605 | (write-region start end filename append visit lockname) | |
1606 | (set-file-modes filename nnmail-default-file-modes)) | |
1607 | ||
1608 | ;;; | |
1609 | ;;; Status functions | |
1610 | ;;; | |
1611 | ||
1612 | (defun nnmail-replace-status (name value) | |
1613 | "Make status NAME and VALUE part of the current status line." | |
1614 | (save-restriction | |
1615 | (message-narrow-to-head) | |
1616 | (let ((status (nnmail-decode-status))) | |
1617 | (setq status (delq (member name status) status)) | |
1618 | (when value | |
1619 | (push (cons name value) status)) | |
1620 | (message-remove-header "status") | |
1621 | (goto-char (point-max)) | |
1622 | (insert "Status: " (nnmail-encode-status status) "\n")))) | |
1623 | ||
1624 | (defun nnmail-decode-status () | |
1625 | "Return a status-value alist from STATUS." | |
1626 | (goto-char (point-min)) | |
1627 | (when (re-search-forward "^Status: " nil t) | |
1628 | (let (name value status) | |
1629 | (save-restriction | |
1630 | ;; Narrow to the status. | |
1631 | (narrow-to-region | |
1632 | (point) | |
1633 | (if (re-search-forward "^[^ \t]" nil t) | |
1634 | (1- (point)) | |
1635 | (point-max))) | |
1636 | ;; Go through all elements and add them to the list. | |
1637 | (goto-char (point-min)) | |
1638 | (while (re-search-forward "[^ \t=]+" nil t) | |
1639 | (setq name (match-string 0)) | |
1640 | (if (not (= (following-char) ?=)) | |
1641 | ;; Implied "yes". | |
1642 | (setq value "yes") | |
1643 | (forward-char 1) | |
1644 | (if (not (= (following-char) ?\")) | |
1645 | (if (not (looking-at "[^ \t]")) | |
1646 | ;; Implied "no". | |
1647 | (setq value "no") | |
1648 | ;; Unquoted value. | |
1649 | (setq value (match-string 0)) | |
1650 | (goto-char (match-end 0))) | |
1651 | ;; Quoted value. | |
1652 | (setq value (read (current-buffer))))) | |
1653 | (push (cons name value) status))) | |
1654 | status))) | |
1655 | ||
1656 | (defun nnmail-encode-status (status) | |
1657 | "Return a status string from STATUS." | |
1658 | (mapconcat | |
1659 | (lambda (elem) | |
1660 | (concat | |
1661 | (car elem) "=" | |
1662 | (if (string-match "[ \t]" (cdr elem)) | |
1663 | (prin1-to-string (cdr elem)) | |
1664 | (cdr elem)))) | |
1665 | status " ")) | |
1666 | ||
1667 | (defun nnmail-split-history () | |
1668 | "Generate an overview of where the last mail split put articles." | |
1669 | (interactive) | |
1670 | (unless nnmail-split-history | |
1671 | (error "No current split history")) | |
1672 | (with-output-to-temp-buffer "*nnmail split history*" | |
1673 | (let ((history nnmail-split-history) | |
1674 | elem) | |
1675 | (while (setq elem (pop history)) | |
1676 | (princ (mapconcat (lambda (ga) | |
1677 | (concat (car ga) ":" (int-to-string (cdr ga)))) | |
1678 | elem | |
1679 | ", ")) | |
1680 | (princ "\n"))))) | |
1681 | ||
1682 | (defun nnmail-new-mail-p (group) | |
1683 | "Say whether GROUP has new mail." | |
1684 | (let ((his nnmail-split-history) | |
1685 | found) | |
1686 | (while his | |
1687 | (when (assoc group (pop his)) | |
1688 | (setq found t | |
1689 | his nil))) | |
1690 | found)) | |
1691 | ||
1692 | (eval-and-compile | |
1693 | (autoload 'pop3-movemail "pop3")) | |
1694 | ||
1695 | (defun nnmail-pop3-movemail (inbox crashbox) | |
1696 | "Function to move mail from INBOX on a pop3 server to file CRASHBOX." | |
1697 | (let ((pop3-maildrop | |
1698 | (substring inbox (match-end (string-match "^po:" inbox))))) | |
1699 | (pop3-movemail crashbox))) | |
1700 | ||
1701 | (run-hooks 'nnmail-load-hook) | |
1702 | ||
1703 | (provide 'nnmail) | |
1704 | ||
1705 | ;;; nnmail.el ends here |