bug#23747: 25.0.95; regression in mml-secure-sign-pgpmime

bug#23747: 25.0.95; regression in mml-secure-sign-pgpmime

[Sam Halliday]

Regression in emacs 25 pretest. This works with my emacs configuration
in emacs 24.5 available at https://github.com/fommil/dotfiles/tree/master/.emacs.d

This line causes a failure when sending email

  (add-hook 'message-setup-hook #'mml-secure-sign-pgpmime)

with the stacktrace below (could be a problem with notmuch).

You can ignore most of the runtime information below, I had to restart
emacs because this obviously knocks out my ability to use
report-emacs-bug:

Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
  mml2015-epg-sign((part (sign . "pgpmime") (tag-location . 312) (contents . "\n-- \nBest regards,\nSam\n")))
  mml2015-sign((part (sign . "pgpmime") (tag-location . 312) (contents . "\n-- \nBest regards,\nSam\n")))
  mml-pgpmime-sign-buffer((part (sign . "pgpmime") (tag-location . 312) (contents . "\n-- \nBest regards,\nSam\n")))
  mml-generate-mime-1((part (sign . "pgpmime") (tag-location . 312) (contents . "\n-- \nBest regards,\nSam\n")))
  mml-generate-mime()
  message-encode-message-body()
  message-send-mail(nil)
  message-send-via-mail(nil)
  message-send(nil)
  message-send-and-exit(nil)
  notmuch-mua-send-and-exit(nil)
  funcall-interactively(notmuch-mua-send-and-exit nil)
  call-interactively(notmuch-mua-send-and-exit nil nil)
  command-execute(notmuch-mua-send-and-exit)


I'd send you a stacktrace, but the nature of the bug means that I can't
use `report-emacs-bug`


In GNU Emacs 25.0.95.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.20.6)
 of 2016-06-11 built on Sampo
Windowing system distributor 'The X.Org Foundation', version 11.0.11803000
System Description:	Debian GNU/Linux testing (stretch)

Configured using:
 'configure --prefix=/opt/emacs-25'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LANG: en_GB.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Emacs-Lisp

Minor modes in effect:
  diff-auto-refine-mode: t
  auto-insert-mode: t
  whitespace-mode: t
  rainbow-delimiters-mode: t
  smartparens-strict-mode: t
  smartparens-mode: t
  company-mode: t
  yas-minor-mode: t
  rainbow-mode: t
  focus-mode: t
  show-paren-mode: t
  flycheck-mode: t
  shell-dirtrack-mode: t
  projectile-global-mode: t
  projectile-mode: t
  flx-ido-mode: t
  ido-everywhere: t
  persistent-scratch-autosave-mode: t
  global-subword-mode: t
  subword-mode: t
  global-auto-revert-mode: t
  override-global-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  mouse-wheel-mode: t
  prettify-symbols-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
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Features:
(shadow sort mail-extr notmuch hl-line notmuch-message
notmuch-maildir-fcc notmuch-hello wid-edit notmuch-tree notmuch-show
notmuch-print notmuch-crypto notmuch-mua notmuch-address notmuch-company
notmuch-parser notmuch-wash diff-mode coolj notmuch-query goto-addr
icalendar diary-lib diary-loaddefs cal-menu calendar cal-loaddefs
notmuch-tag crm notmuch-lib mm-view mml-smime smime dig mailcap misearch
multi-isearch yatemplate autoinsert emacsbug message rfc822 mml mml-sec
epg mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils
whitespace rainbow-delimiters smartparens-config smartparens
company-oddmuse company-keywords company-etags etags xref project
company-gtags company-dabbrev-code company-dabbrev company-files
company-capf company-cmake company-xcode company-clang company-semantic
company-eclim company-template company-css company-nxml company-bbdb
company yasnippet cl flycheck-cask rainbow-mode color focus paren
darcula-theme flycheck-pos-tip pos-tip flycheck-clojure url-parse
url-vars flycheck json map find-func rx subr-x cider-client cider-common
cider-util clojure-mode align imenu nrepl-client tramp tramp-compat
auth-source cl-seq eieio eieio-core gnus-util mm-util help-fns
mail-prsvr password-cache tramp-loaddefs trampver ucs-normalize shell
pcomplete format-spec queue nrepl-dict cider-compat ewoc spinner cc-mode
cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs re-builder hydra lv projectile grep compile comint ansi-color
ring ibuf-ext ibuffer dash thingatpt flx-ido advice flx ido
persistent-scratch midnight cl-macs dired cap-words superword subword
edmacro kmacro autorevert filenotify use-package diminish bind-key
easy-mmode finder-inf info package epg-config seq byte-opt gv bytecomp
byte-compile cl-extra help-mode easymenu cconv cl-loaddefs pcase cl-lib
time-date mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win term/common-win x-dnd tool-bar dnd fontset
image regexp-opt fringe tabulated-list newcomment elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cl-generic cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese charscript case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer cl-preloaded nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote dbusbind inotify dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty make-network-process emacs)

Memory information:
((conses 16 418770 138986)
 (symbols 48 40174 38)
 (miscs 40 247 649)
 (strings 32 89248 119475)
 (string-bytes 1 2683929)
 (vectors 16 59670)
 (vector-slots 8 1047639 70294)
 (floats 8 858 582)
 (intervals 56 1013 267)
 (buffers 976 17)
 (heap 1024 40711 8034))

-- 
Best regards,
Sam

bug#23747: 25.0.95; regression in mml-secure-sign-pgpmime

[Nicolas Petton]

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Sam Halliday <sam.halliday@gmail.com> writes:

Hi Sam,

> Regression in emacs 25 pretest. This works with my emacs configuration
> in emacs 24.5 available at https://github.com/fommil/dotfiles/tree/master/.emacs.d
>
> This line causes a failure when sending email
>
>   (add-hook 'message-setup-hook #'mml-secure-sign-pgpmime)
>
> with the stacktrace below (could be a problem with notmuch).

- Can you reproduce the issue on master?
- What version of notmuch are you using?


I'm using notumch-emacs-version 0.21, and I cannot reproduce the issue
on Emacs master.

Cheers,
Nico

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bug#23747: 25.0.95; regression in mml-secure-sign-pgpmime

[Sam Halliday]

Thanks Nicolas,

I'm using notmuch 0.22 in Debian Testing but I'm using elpa/melpa to
manage the Emacs side client.

I've updated by init.el to be compatible with the GNU Emacs 25 pretest
so you could try using it if you are brave (use init.el and init-gnu.el
in a fresh .emacs.d). I've commented out the line from init-gnu.el that
triggers this bug (which I can imagine might be with notmuch).

Best regards,
Sam

Nicolas Petton <nicolas@petton.fr> writes:

> [ Unknown signature status ]
> Sam Halliday <sam.halliday@gmail.com> writes:
>
> Hi Sam,
>
>> Regression in emacs 25 pretest. This works with my emacs configuration
>> in emacs 24.5 available at https://github.com/fommil/dotfiles/tree/master/.emacs.d
>>
>> This line causes a failure when sending email
>>
>>   (add-hook 'message-setup-hook #'mml-secure-sign-pgpmime)
>>
>> with the stacktrace below (could be a problem with notmuch).
>
> - Can you reproduce the issue on master?
> - What version of notmuch are you using?
>
>
> I'm using notumch-emacs-version 0.21, and I cannot reproduce the issue
> on Emacs master.
>
> Cheers,
> Nico

-- 
Best regards,
Sam

bug#23747: bug present without emacs25 or notmuch

[David Bremner]

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I have managed to duplicate (I think) this bug without notmuch or emacs
25.

In emacs 24.5.1 (on debian)

(require 'mml2015)
(setq mml2015-sign-with-sender t)

M-x toggle-debug-on-error

M-x message-mail
(fill in some headers, From: me)
C-c C-m C-s
C-c C-c

yields the following backtrace

Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
  mml2015-epg-sign((part (sign . "pgpmime") (tag-location . 189) (contents . "\nTesty McTestface\n")))
  mml2015-sign((part (sign . "pgpmime") (tag-location . 189) (contents . "\nTesty McTestface\n")))
  mml-pgpmime-sign-buffer((part (sign . "pgpmime") (tag-location . 189) (contents . "\nTesty McTestface\n")))
  mml-generate-mime-1((part (sign . "pgpmime") (tag-location . 189) (contents . "\nTesty McTestface\n")))
  mml-generate-mime()
  message-encode-message-body()
  message-send-mail(nil)
  message-send-via-mail(nil)
  message-send(nil)
  message-send-and-exit(nil)
  call-interactively(message-send-and-exit nil nil)
  command-execute(message-send-and-exit)

I hazard a guess this is related to the changes in the with-colons
format of gnupg 2.1.15, since I just installed that to fix some other
breakage. I could be wrong though, I haven't debugged further than this.

If this message arrives signed, then a workaround is to set
mml2015-sign-with-sender to nil, although I'm not sure what will happen
with key selection.

d

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