bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Juan Jose Garcia-Ripoll]

I am using org-open-file to open files in dired. This function, for some
file types, relies on w32-shell-execute with the "open" verb. This verb
fails when the full path contains spaces. For instance, the first instance
does not work, while the second does

(w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\some-path\\CV.pdf")

(w32-shell-execute "open" "c:\\Users\\juanj\\another-path\\CV.pdf")

I am reporting this from a rather full image, but the problem also is shown
in a bare-bones emacs (emacs -q)



In GNU Emacs 26.3 (build 1, x86_64-w64-mingw32)
 of 2019-08-29 built on CIRROCUMULUS
Repository revision: 96dd0196c28bc36779584e47fffcca433c9309cd
Windowing system distributor 'Microsoft Corp.', version 10.0.18362
Recent messages:
t
Mark set
t
Mark set
Undo in region!
user-error: No further undo information for region [7 times]
Mark set [11 times]
previous-line: Beginning of buffer [12 times]
Quit
Mark set

Configured using:
 'configure --without-dbus --host=x86_64-w64-mingw32
 --without-compress-install 'CFLAGS=-O2 -static -g3''

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS THREADS LCMS2

Important settings:
  value of $LANG: ESN
  locale-coding-system: cp1252

Major mode: Lisp Interaction

Minor modes in effect:
  flyspell-lazy-mode: t
  diff-auto-refine-mode: t
  ido-vertical-mode: t
  smartparens-global-mode: t
  smartparens-mode: t
  save-place-mode: t
  savehist-mode: t
  gcmh-mode: t
  override-global-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
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bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Eli Zaretskii]

> Date: Sun, 08 Dec 2019 12:04:59 +0100
> From: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>
> 
> I am using org-open-file to open files in dired. This function, for some
> file types, relies on w32-shell-execute with the "open" verb. This verb
> fails when the full path contains spaces. For instance, the first instance
> does not work, while the second does
> 
> (w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\some-path\\CV.pdf")
> 
> (w32-shell-execute "open" "c:\\Users\\juanj\\another-path\\CV.pdf")
> 
> I am reporting this from a rather full image, but the problem also is shown
> in a bare-bones emacs (emacs -q)

Not reproducible here, although I tried several PDF documents on 2
different systems.

What program is configured on your system to open PDF documents?  Is
it possible that its configuration is wrong?

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Juan Jose Garcia-Ripoll]

On Sun, 08 Dec 2019 17:43:31 +0100,
Eli Zaretskii wrote:
> 
> > Date: Sun, 08 Dec 2019 12:04:59 +0100
> > From: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>
> > 
> > I am using org-open-file to open files in dired. This function, for some
> > file types, relies on w32-shell-execute with the "open" verb. This verb
> > fails when the full path contains spaces. For instance, the first instance
> > does not work, while the second does
> > 
> > (w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\some-path\\CV.pdf")
> > 
> > (w32-shell-execute "open" "c:\\Users\\juanj\\another-path\\CV.pdf")
> > 
> > I am reporting this from a rather full image, but the problem also is shown
> > in a bare-bones emacs (emacs -q)
> 
> Not reproducible here, although I tried several PDF documents on 2
> different systems.
> 
> What program is configured on your system to open PDF documents?  Is
> it possible that its configuration is wrong?

I am trying to debug w32-shell-execute, but there are no useful error messages. I am using SumatraPDF, which works fine in all documents.

The only difference is the path: whether the document is inside the Nextcloud folder or not (initially I thought it had to do with spaces in the name, but does not seem the case). I am using this PDF viewer for everything in Emacs (including AucTeX), but also from Windows Shell (Default option in "Open").

To verify, I have done the same test using a Word document
  (w32-shell-execute "open" "c:\\Users\\juanj\\tmp\\Test document.docx")
  (w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\tmp\\Test document.docx")
and the result is the same: both functions return 't but only the first one opens the document...

--
Juan José García Ripoll

Quantum Information and Foundations Group
Institute of Fundamental Physics IFF-CSIC
Calle Serrano 113b, Madrid 28006 Spain
http://quinfog.hbar.es - http://juanjose.garcia.ripoll

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Noam Postavsky]

Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es> writes:

> This verb fails when the full path contains spaces. For instance, the
> first instance does not work, while the second does
>
> (w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\some-path\\CV.pdf")
>
> (w32-shell-execute "open" "c:\\Users\\juanj\\another-path\\CV.pdf")

Neither example has spaces, did you post the wrong one?

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Eli Zaretskii]

> Date: Sun, 08 Dec 2019 17:12:51 +0100
> From: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>
> Cc: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>,
> 	38526@debbugs.gnu.org
> 
> I am trying to debug w32-shell-execute, but there are no useful error messages. I am using SumatraPDF, which works fine in all documents.

How is SumatraPDF configured on your system?  On my system, here's how
I see the command invoked to open PDF files:

  D:\usr\eli>assoc .pdf
  .pdf=AcroExch.Document.11
  D:\usr\eli>ftype AcroExch.Document.11
  AcroExch.Document.11="C:\Program Files\Adobe\Reader 11.0\Reader\AcroRd32.exe" "%1"

And that quoted "%1" is the reason why file names with spaces will be
processed correctly.  Maybe on your system the quotes are missing?

> To verify, I have done the same test using a Word document
>   (w32-shell-execute "open" "c:\\Users\\juanj\\tmp\\Test document.docx")
>   (w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\tmp\\Test document.docx")
> and the result is the same: both functions return 't but only the first one opens the document...

If the function returns t, it means it succeeded in launching the
requisite application.  The problem, if it happens, is within the
application it launches.

Is the below of any help?

  https://forum.sumatrapdfreader.org/t/space-in-file-names-paths/1555/5

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Juan Jose Garcia-Ripoll]

Sorry, my report was very messy. I have spent a great chunk of the day trying to debug it but did not update the already opened bug report.

I originally reported it as "spaces" being the problem because I misunderstood the cause. Later along the day I realized that moving the data outside of the Nextcloud folder solves the issues.

Let me summarize it better:

- w32-shell-execute with verb "open" fails to actually open any object that lays inside a Nextcloud folder.
- those same files can be opened from Windows Explorer
- moving those files outside of Nextcloud or switching off Nextcloud solves the issue but that is kind of pointless.
- w32-shell-execute does not generate any message or log and I do not know how to debug it.

The problem is evidenced with any type of file. Initially I was obsessed with PDF but as I explain in my previous file, it occurs with Word files and any other file that is not associated to emacs -- for instance, 

(w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\tmp\\test.docx")
(w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\tmp\\test.pdf")

I am wondering whether it has to do with the permissions of the emacs.exe executable or the fact that it uses a w32 api call. I have tried investigating the Windows logs but I found no error associated to the w32-shell-execute call.

Thanks for looking into this.
Best,

--
Juan José García Ripoll

Quantum Information and Foundations Group
Institute of Fundamental Physics IFF-CSIC
Calle Serrano 113b, Madrid 28006 Spain
http://quinfog.hbar.es - http://juanjose.garcia.ripoll

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Eli Zaretskii]

> Date: Sun, 08 Dec 2019 18:41:08 +0100
> From: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>
> Cc: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>,
> 	38526@debbugs.gnu.org
> 
> - w32-shell-execute with verb "open" fails to actually open any object that lays inside a Nextcloud folder.
> - those same files can be opened from Windows Explorer
> - moving those files outside of Nextcloud or switching off Nextcloud solves the issue but that is kind of pointless.
> - w32-shell-execute does not generate any message or log and I do not know how to debug it.
> 
> The problem is evidenced with any type of file. Initially I was obsessed with PDF but as I explain in my previous file, it occurs with Word files and any other file that is not associated to emacs -- for instance, 
> 
> (w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\tmp\\test.docx")
> (w32-shell-execute "open" "c:\\Users\\juanj\\Nextcloud\\tmp\\test.pdf")
> 
> I am wondering whether it has to do with the permissions of the emacs.exe executable or the fact that it uses a w32 api call. I have tried investigating the Windows logs but I found no error associated to the w32-shell-execute call.

Thanks.

Sorry, I cannot help you, as I know nothing about Nextcloud.  Maybe
someone else does.  Failing that, I suggest to ask on the Nextcloud
forum, showing them the code we have in Emacs that calls
ShellExecuteW, or just asking whether there are known issues with
ShellExecuteW calls for files in the Nextcloud directory.

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Juan Jose Garcia-Ripoll]

On Sun, 08 Dec 2019 19:51:21 +0100,
Eli Zaretskii wrote:
> Sorry, I cannot help you, as I know nothing about Nextcloud.  Maybe
> someone else does.  Failing that, I suggest to ask on the Nextcloud
> forum, showing them the code we have in Emacs that calls
> ShellExecuteW, or just asking whether there are known issues with
> ShellExecuteW calls for files in the Nextcloud directory.

Here it goes
https://github.com/nextcloud/desktop/issues/1671
Nextcloud's log shows that it intercepts the ShellExecute calls.

-- 
Juan José García Ripoll

Quantum Information and Foundations Group
Institute of Fundamental Physics IFF-CSIC
Calle Serrano 113b, Madrid 28006 Spain
http://quinfog.hbar.es - http://juanjose.garcia.ripoll

--
Juan José García Ripoll

Quantum Information and Foundations Group
Institute of Fundamental Physics IFF-CSIC
Calle Serrano 113b, Madrid 28006 Spain
http://quinfog.hbar.es - http://juanjose.garcia.ripoll

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Eli Zaretskii]

> Date: Mon, 09 Dec 2019 17:36:28 +0100
> From: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>
> Cc: Juan Jose Garcia-Ripoll <juanjose.garcia.ripoll@csic.es>,
> 	38526@debbugs.gnu.org
> 
> https://github.com/nextcloud/desktop/issues/1671
> Nextcloud's log shows that it intercepts the ShellExecute calls.

Intercepts, but doesn't support "open", and doesn't call the next
handler in the chain?  That sounds like a terrible bug to me, and I
have hard time believing in such problematic behavior.

Thanks for telling us.

bug#38526: 26.3; w32-shell-execute fails inside Nextcloud folder

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> https://github.com/nextcloud/desktop/issues/1671
>> Nextcloud's log shows that it intercepts the ShellExecute calls.
>
> Intercepts, but doesn't support "open", and doesn't call the next
> handler in the chain?  That sounds like a terrible bug to me, and I
> have hard time believing in such problematic behavior.

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

Skimming this thread, it seems like the problem is in Nextcloud and not
in Emacs, and I'm therefore closing this bug report.  If I've
misunderstood, please respond to the debbugs address and we'll reopen.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no