1 ;; notmuch-mua.el --- emacs style mail-user-agent
3 ;; Copyright © David Edmondson
5 ;; This file is part of Notmuch.
7 ;; Notmuch is free software: you can redistribute it and/or modify it
8 ;; under the terms of the GNU General Public License as published by
9 ;; the Free Software Foundation, either version 3 of the License, or
10 ;; (at your option) any later version.
12 ;; Notmuch is distributed in the hope that it will be useful, but
13 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 ;; General Public License for more details.
17 ;; You should have received a copy of the GNU General Public License
18 ;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
20 ;; Authors: David Edmondson <dme@dme.org>
24 (require 'format-spec)
26 (require 'notmuch-lib)
27 (require 'notmuch-address)
29 (eval-when-compile (require 'cl))
31 (declare-function notmuch-show-insert-bodypart "notmuch-show" (msg part depth &optional hide))
35 (defcustom notmuch-mua-send-hook '(notmuch-mua-message-send-hook)
36 "Hook run before sending messages."
39 :group 'notmuch-hooks)
41 (defcustom notmuch-mua-compose-in 'current-window
43 "Where to create the mail buffer used to compose a new message.
44 Possible values are `current-window' (default), `new-window' and
45 `new-frame'. If set to `current-window', the mail buffer will be
46 displayed in the current window, so the old buffer will be
47 restored when the mail buffer is killed. If set to `new-window'
48 or `new-frame', the mail buffer will be displayed in a new
49 window/frame that will be destroyed when the buffer is killed.
50 You may want to customize `message-kill-buffer-on-exit'
52 (when (< emacs-major-version 24)
53 " Due to a known bug in Emacs 23, you should not set
54 this to `new-window' if `message-kill-buffer-on-exit' is
55 disabled: this would result in an incorrect behavior."))
57 :type '(choice (const :tag "Compose in the current window" current-window)
58 (const :tag "Compose mail in a new window" new-window)
59 (const :tag "Compose mail in a new frame" new-frame)))
61 (defcustom notmuch-mua-user-agent-function 'notmuch-mua-user-agent-full
62 "Function used to generate a `User-Agent:' string. If this is
63 `nil' then no `User-Agent:' will be generated."
64 :type '(choice (const :tag "No user agent string" nil)
65 (const :tag "Full" notmuch-mua-user-agent-full)
66 (const :tag "Notmuch" notmuch-mua-user-agent-notmuch)
67 (const :tag "Emacs" notmuch-mua-user-agent-emacs)
68 (function :tag "Custom user agent function"
69 :value notmuch-mua-user-agent-full))
72 (defcustom notmuch-mua-hidden-headers '("^User-Agent:")
73 "Headers that are added to the `message-mode' hidden headers
75 :type '(repeat string)
80 (defun notmuch-mua-get-switch-function ()
81 "Get a switch function according to `notmuch-mua-compose-in'."
82 (cond ((eq notmuch-mua-compose-in 'current-window)
84 ((eq notmuch-mua-compose-in 'new-window)
85 'switch-to-buffer-other-window)
86 ((eq notmuch-mua-compose-in 'new-frame)
87 'switch-to-buffer-other-frame)
88 (t (error "Invalid value for `notmuch-mua-compose-in'"))))
90 (defun notmuch-mua-maybe-set-window-dedicated ()
91 "Set the selected window as dedicated according to
92 `notmuch-mua-compose-in'."
93 (when (or (eq notmuch-mua-compose-in 'new-frame)
94 (eq notmuch-mua-compose-in 'new-window))
95 (set-window-dedicated-p (selected-window) t)))
97 (defun notmuch-mua-user-agent-full ()
98 "Generate a `User-Agent:' string suitable for notmuch."
99 (concat (notmuch-mua-user-agent-notmuch)
101 (notmuch-mua-user-agent-emacs)))
103 (defun notmuch-mua-user-agent-notmuch ()
104 "Generate a `User-Agent:' string suitable for notmuch."
105 (concat "Notmuch/" (notmuch-version) " (http://notmuchmail.org)"))
107 (defun notmuch-mua-user-agent-emacs ()
108 "Generate a `User-Agent:' string suitable for notmuch."
109 (concat "Emacs/" emacs-version " (" system-configuration ")"))
111 (defun notmuch-mua-add-more-hidden-headers ()
112 "Add some headers to the list that are hidden by default."
113 (mapc (lambda (header)
114 (when (not (member header message-hidden-headers))
115 (push header message-hidden-headers)))
116 notmuch-mua-hidden-headers))
118 (defun notmuch-mua-reply-crypto (parts)
119 "Add mml sign-encrypt flag if any part of original message is encrypted."
120 (loop for part in parts
121 if (notmuch-match-content-type (plist-get part :content-type) "multipart/encrypted")
122 do (mml-secure-message-sign-encrypt)
123 else if (notmuch-match-content-type (plist-get part :content-type) "multipart/*")
124 do (notmuch-mua-reply-crypto (plist-get part :content))))
126 (defun notmuch-mua-get-quotable-parts (parts)
127 (loop for part in parts
128 if (notmuch-match-content-type (plist-get part :content-type) "multipart/alternative")
129 collect (let* ((subparts (plist-get part :content))
130 (types (mapcar (lambda (part) (plist-get part :content-type)) subparts))
131 (chosen-type (car (notmuch-multipart/alternative-choose types))))
132 (loop for part in (reverse subparts)
133 if (notmuch-match-content-type (plist-get part :content-type) chosen-type)
135 else if (notmuch-match-content-type (plist-get part :content-type) "multipart/*")
136 append (notmuch-mua-get-quotable-parts (plist-get part :content))
137 else if (notmuch-match-content-type (plist-get part :content-type) "text/*")
140 (defun notmuch-mua-insert-quotable-part (message part)
141 ;; We don't want text properties leaking from the show renderer into
142 ;; the reply so we use a temp buffer. Also we don't want hooks, such
143 ;; as notmuch-wash-*, to be run on the quotable part so we set
144 ;; notmuch-show-insert-text/plain-hook to nil.
145 (insert (with-temp-buffer
146 (let ((notmuch-show-insert-text/plain-hook nil))
147 ;; Show the part but do not add buttons.
148 (notmuch-show-insert-bodypart message part 0 'no-buttons))
149 (buffer-substring-no-properties (point-min) (point-max)))))
151 ;; There is a bug in emacs 23's message.el that results in a newline
152 ;; not being inserted after the References header, so the next header
153 ;; is concatenated to the end of it. This function fixes the problem,
154 ;; while guarding against the possibility that some current or future
155 ;; version of emacs has the bug fixed.
156 (defun notmuch-mua-insert-references (original-func header references)
157 (funcall original-func header references)
158 (unless (bolp) (insert "\n")))
160 (defun notmuch-mua-reply (query-string &optional sender reply-all)
161 (let ((args '("reply" "--format=sexp" "--format-version=1"))
162 (process-crypto notmuch-show-process-crypto)
166 (setq args (append args '("--decrypt"))))
169 (setq args (append args '("--reply-to=all")))
170 (setq args (append args '("--reply-to=sender"))))
171 (setq args (append args (list query-string)))
173 ;; Get the reply object as SEXP, and parse it into an elisp object.
174 (setq reply (apply #'notmuch-call-notmuch-sexp args))
176 ;; Extract the original message to simplify the following code.
177 (setq original (plist-get reply :original))
179 ;; Extract the headers of both the reply and the original message.
180 (let* ((original-headers (plist-get original :headers))
181 (reply-headers (plist-get reply :reply-headers)))
183 ;; If sender is non-nil, set the From: header to its value.
185 (plist-put reply-headers :From sender))
187 ;; Overlay the composition window on that being used to read
188 ;; the original message.
189 ((same-window-regexps '("\\*mail .*")))
191 ;; We modify message-header-format-alist to get around a bug in message.el.
192 ;; See the comment above on notmuch-mua-insert-references.
193 (let ((message-header-format-alist
194 (loop for pair in message-header-format-alist
195 if (eq (car pair) 'References)
196 collect (cons 'References
198 'notmuch-mua-insert-references
202 (notmuch-mua-mail (plist-get reply-headers :To)
203 (plist-get reply-headers :Subject)
204 (notmuch-headers-plist-to-alist reply-headers)
205 nil (notmuch-mua-get-switch-function))))
207 ;; Insert the message body - but put it in front of the signature
208 ;; if one is present, and after any other content
209 ;; message*setup-hooks may have added to the message body already.
212 (narrow-to-region (point) (point-max))
213 (goto-char (point-max))
214 (if (re-search-backward message-signature-separator nil t)
215 (if message-signature-insert-empty-line
217 (goto-char (point-max))))
219 (let ((from (plist-get original-headers :From))
220 (date (plist-get original-headers :Date))
223 ;; message-cite-original constructs a citation line based on the From and Date
224 ;; headers of the original message, which are assumed to be in the buffer.
225 (insert "From: " from "\n")
226 (insert "Date: " date "\n\n")
228 ;; Get the parts of the original message that should be quoted; this includes
229 ;; all the text parts, except the non-preferred ones in a multipart/alternative.
230 (let ((quotable-parts (notmuch-mua-get-quotable-parts (plist-get original :body))))
231 (mapc (apply-partially 'notmuch-mua-insert-quotable-part original) quotable-parts))
235 ;; Quote the original message according to the user's configured style.
236 (message-cite-original)))
238 ;; Crypto processing based crypto content of the original message
240 (notmuch-mua-reply-crypto (plist-get original :body))))
242 ;; Push mark right before signature, if any.
243 (message-goto-signature)
249 (set-buffer-modified-p nil))
251 (defun notmuch-mua-mail (&optional to subject other-headers &rest other-args)
252 "Invoke the notmuch mail composition window.
254 OTHER-ARGS are passed through to `message-mail'."
257 (when notmuch-mua-user-agent-function
258 (let ((user-agent (funcall notmuch-mua-user-agent-function)))
259 (when (not (string= "" user-agent))
260 (push (cons 'User-Agent user-agent) other-headers))))
262 (unless (assq 'From other-headers)
263 (push (cons 'From (concat
264 (notmuch-user-name) " <" (notmuch-user-primary-email) ">")) other-headers))
266 (apply #'message-mail to subject other-headers other-args)
267 (message-sort-headers)
268 (message-hide-headers)
269 (set-buffer-modified-p nil)
270 (notmuch-mua-maybe-set-window-dedicated)
274 (defcustom notmuch-identities nil
275 "Identities that can be used as the From: address when composing a new message.
277 If this variable is left unset, then a list will be constructed from the
278 name and addresses configured in the notmuch configuration file."
279 :type '(repeat string)
280 :group 'notmuch-send)
282 (defcustom notmuch-always-prompt-for-sender nil
283 "Always prompt for the From: address when composing or forwarding a message.
285 This is not taken into account when replying to a message, because in that case
286 the From: header is already filled in by notmuch."
288 :group 'notmuch-send)
290 (defvar notmuch-mua-sender-history nil)
292 ;; Workaround: Running `ido-completing-read' in emacs 23.1, 23.2 and 23.3
293 ;; without some explicit initialization fill freeze the operation.
294 ;; Hence, we advice `ido-completing-read' to ensure required initialization
296 (if (and (= emacs-major-version 23) (< emacs-minor-version 4))
297 (defadvice ido-completing-read (before notmuch-ido-mode-init activate)
298 (ido-init-completion-maps)
299 (add-hook 'minibuffer-setup-hook 'ido-minibuffer-setup)
300 (add-hook 'choose-completion-string-functions
301 'ido-choose-completion-string)
302 (ad-disable-advice 'ido-completing-read 'before 'notmuch-ido-mode-init)
303 (ad-activate 'ido-completing-read)))
305 (defun notmuch-mua-prompt-for-sender ()
306 "Prompt for a sender from the user's configured identities."
307 (if notmuch-identities
308 (ido-completing-read "Send mail from: " notmuch-identities
309 nil nil nil 'notmuch-mua-sender-history
310 (car notmuch-identities))
311 (let* ((name (notmuch-user-name))
312 (addrs (cons (notmuch-user-primary-email)
313 (notmuch-user-other-email)))
315 (ido-completing-read (concat "Sender address for " name ": ") addrs
316 nil nil nil 'notmuch-mua-sender-history
318 (concat name " <" address ">"))))
320 (put 'notmuch-mua-new-mail 'notmuch-prefix-doc "... and prompt for sender")
321 (defun notmuch-mua-new-mail (&optional prompt-for-sender)
324 If PROMPT-FOR-SENDER is non-nil, the user will be prompted for
325 the From: address first."
328 (when (or prompt-for-sender notmuch-always-prompt-for-sender)
329 (list (cons 'From (notmuch-mua-prompt-for-sender))))))
330 (notmuch-mua-mail nil nil other-headers nil (notmuch-mua-get-switch-function))))
332 (defun notmuch-mua-new-forward-message (&optional prompt-for-sender)
333 "Invoke the notmuch message forwarding window.
335 The current buffer must contain an RFC2822 message to forward.
337 If PROMPT-FOR-SENDER is non-nil, the user will be prompted for
338 the From: address first."
339 (let* ((cur (current-buffer))
340 (message-forward-decoded-p nil)
341 (subject (message-make-forward-subject))
343 (when (or prompt-for-sender notmuch-always-prompt-for-sender)
344 (list (cons 'From (notmuch-mua-prompt-for-sender))))))
345 (notmuch-mua-mail nil subject other-headers nil (notmuch-mua-get-switch-function))
346 (message-forward-make-body cur)
347 ;; `message-forward-make-body' shows the User-agent header. Hide
349 (message-hide-headers)
350 (set-buffer-modified-p nil)))
352 (defun notmuch-mua-new-reply (query-string &optional prompt-for-sender reply-all)
353 "Compose a reply to the message identified by QUERY-STRING.
355 If PROMPT-FOR-SENDER is non-nil, the user will be prompted for
356 the From: address first. If REPLY-ALL is non-nil, the message
357 will be addressed to all recipients of the source message."
359 ;; In current emacs (24.3) select-active-regions is set to t by
360 ;; default. The reply insertion code sets the region to the quoted
361 ;; message to make it easy to delete (kill-region or C-w). These two
362 ;; things combine to put the quoted message in the primary selection.
364 ;; This is not what the user wanted and is a privacy risk (accidental
365 ;; pasting of the quoted message). We can avoid some of the problems
366 ;; by let-binding select-active-regions to nil. This fixes if the
367 ;; primary selection was previously in a non-emacs window but not if
368 ;; it was in an emacs window. To avoid the problem in the latter case
369 ;; we deactivate mark.
372 (when prompt-for-sender
373 (notmuch-mua-prompt-for-sender)))
374 (select-active-regions nil))
375 (notmuch-mua-reply query-string sender reply-all)
378 (defun notmuch-mua-send-and-exit (&optional arg)
380 (message-send-and-exit arg))
382 (defun notmuch-mua-kill-buffer ()
384 (message-kill-buffer))
386 (defun notmuch-mua-message-send-hook ()
387 "The default function used for `notmuch-mua-send-hook', this
388 simply runs the corresponding `message-mode' hook functions."
389 (run-hooks 'message-send-hook))
393 (define-mail-user-agent 'notmuch-user-agent
394 'notmuch-mua-mail 'notmuch-mua-send-and-exit
395 'notmuch-mua-kill-buffer 'notmuch-mua-send-hook)
397 ;; Add some more headers to the list that `message-mode' hides when
398 ;; composing a message.
399 (notmuch-mua-add-more-hidden-headers)
403 (provide 'notmuch-mua)