T1624 is another issue related to this. GPGex
/ Kleopatra file / folder encrypt does not work with non ASCII characters.

To use --multifile with files on the command line. Such a use will suddenly
break. This is the same as using grep on a large number of files - only rookies
do that.

Fortuntately g_rand_new is only used by the dbus support and by tests. Thus we
can easily revert to the old state.

FWIW: Changing the semantics of an existing function to suddenly claim
"cryptographically secure" is a questionable move. You can't rely on it and the
name of the function indicates that it is a wrapper around the usual rand
function. If a CSRNG is needed, an approriate function needs to be added.

Not sure what you mean by "It is not useful for that purpose" what do you mean
by "It" and "that" in this context.

With regard to complaints there are reports about this that have been active
nearly all the time since this was broken by 2.2.0:
https://wald.intevation.org/forum/message.php?msg_id=2569&group_id=11

This thread triggered your initial opening of this issue.

I agree that wildcard / multifile it is not very important. But I think we
should fix it as it is a small annoyance and it worked with gpg 2.1.0. That it
stopped working was due to our switch to mingw-w64 and not due to a decision
made by us to disable this. So I would see this as a Bug.

Some more threads about this:
https://wald.intevation.org/forum/forum.php?thread_id=1119&forum_id=21&group_id=11
https://wald.intevation.org/forum/message.php?msg_id=3404

P.S.
Yes I dislike the message boards too but they are surprisingly active.

It is not useful for that purpose. This is probably the reason why we received
no complaints about it unless someone uses --multifile with filenames. It is
almost always wrong to do this.

I disagree, all builtin windows tools do globbing so you expect it on the
command line. And as this is default for software that is built with visual
studio and with some versions of mingw it is more likely to see a software that
supports globbing then not.

With regards to quoting problems. I think that users would prefer some problems
instead of just "no". There is no xargs equivalent in Windows by default and so
you have to fall back to really ugly batch scripts that do this in for loops.

Yes one could argue that those users should use a "real shell" on a "real
system" ;-)

Well, it's part of 2.2.2 now, lets see if we get some feedback on this and maybe
for the next release we can revisit the question again if we should enable this
or not.

It would be rather surprising if just one tool does globbing on Windows but all
the otehrs don't do it. It may actually lead to bugs due to broken quoting in
mingw. I recall than many years ago we had a lot of problems with the ever
changing quoting in the globbing implementation.

In any case using globbing with --multifile is not a good idea at all. There is
always a limit on this and thus the proper way of handling this is to use xargs
or whatever the counterpart is on Windows.

Tested this myself again. And I feel comfortable that this is fixed. Still I do
not know why this works now.

Werner can you take a look at the patch I've added for this:

http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gpg4win.git;a=blob;f=patches/gnupg2-2.0.26/0001-Enable-wildcard-expansion-with-mingw-w64.patch;h=6c5b9f8b0794cf32ab909c0a340f81377dc3d42f;hb=HEAD

Is this something you would consider including in some form in gnupg or should I
move the patch into the generic gnupg patch directory?

Now for 2.2.2 we've switched to a new dedicated buildsystem with a fully updated
debian wheezy whereas the old buildsystem was a debian unstable snapshot with
the same mingw Version: 2.0.3-1
I could not find an upstream bug or any indication that there was a fix for this.

But with beta-37 of 2.2.2 I was able to use wildcards on the command line.
I am out of my wits why this works now.

Emanuel: can you confirm that wildcards now work on the command line so that we
can mention this in the news and maybe look at integrating the patch into gnupg?
I'd like a different pair of eyes on that behavior. Maybe I've just messed up my
testsystem.

I've commited the patch to gpg4win so it will be part of the 2.2.2 release.

Thanks for summing up the other problems. I've added a reference to this issue
to the "Improve encoding handling" point in the backlog:
http://wiki.gnupg.org/Gpg4win/Wishlist

Thanks Andre for the patch!

I managed to build gpg4win with the patch added and I verified that it seems to
solve the problem reported by me and also in Issues 1373 and 1674!

But I'd like to summarize the problems related to the charset / codepage on MS
Windows of which I am aware, as a reminder:

1. incorrect display of GPG 2 output translated into another language (also

reported in Issue 1373 and Issue 1674): fixed by your patch;

2. passphrases (both for secret keys and symmetrical encryption) with non ASCII

characters set using GPG 1.4.18 are considered not valid using GPG 2.0.26 and
vice versa

3. incorrect display of filenames with non ASCII characters (also in Issue 1409)

4. GPG 2.0.26 and 1.4.18 ignore or weirdly comply with --utf8-strings, --no-

utf8-strings or --charset options for utf-8 encoding of encrypted filenames (see
Issue 1409)

5. charset weirdness searching keyserver for some non-ASCII user IDs under non-

UTF-8 locales (see Issue 1514 - although relates to Linux it seems to occur also
on Windows, both CLI and GPA but not Kleopatra)

Hope this will help to improve the great GnuPG :-)

This should be working with gpgOl 1.2.1

As I don't have a test set up I'm setting this to resolved until someone complains.

Good anlysis. Thanks.
Feel free to put it as a patch into gpg4win.
I need to look closer at it because we have have the gettext code also in
libgpg-error. You should also send a DCO for GnuPG.

Pretty picture.

D211: 465_0001-Let-wchar_to_native-convert-to-console-codepage.patch

I've taken a look at this. The problem is that the working conversion code in
jnlib/utf8conv.c is not used on Windows but instead jnlib/w32-gettext.c does
it's own conversion to wchar and then back from wchar to the native codepage
which is simpler and should work.

But the conversion back used the wrong codepage. CP_ACP instead of the codepage
retuned by GetConsoleOutputCP. jnlib/utf8conv.c actually had a comment
explaining why it is neccessary to use GetConsoleOutputCP.

With this changed (see attached patch) I get correct output and can verify /
sign files with non-ascii filenames.

I think gnupg master behaves differently though and I don't have a test setup
for this so the patch is only against STABLE.

Werner any objections into including this patch into GnuPG / Gpg4Win?

Thanks Werner. I had already done a search among the issues using the world "charset", but the 1373 issue was
not displayed.

However the bug occurs more problematically with passphrases: a secret key passphrase with non ASCII characters
set using GPG 1.4.18 for a given key is considered not valid using GPG v 2.0.26 to deal with the same key and
vice versa.
I think this problem may cause a lot of trouble to users.

The bug also occurs using filenames in which there are characters outside the ASCII block. This occurs also
setting LC_MESSAGES=C or LC_MESSAGES=en_US.UTF-8 (i.e. gpg -vvvv --verify C:\Users\Andrea\Downloads\gpg4win-
2.2.2-beta37_è_.exe.sig -> "gpg: assuming signed data in `C:\\Users\\Andrea\\Downloads\\gpg4win-2.2.2-
beta37_Þ_.exe'" in which are also wrongly displayed double backslashes instead of single) and also with gpg
1.4.18 (but without the double backslashes). Luckily this does not prevent the signature verification. It's
similar to T1409.

Some additional information:

the CHCP command executed at the Windows command prompt reports: "Tabella codici attiva: 850" (active codepage
850);

using the -vvvv option with the --verify command, gpg 2.0.26 and 1.4.18 report: "gpg: using character set
`CP850'".

This is known. See the other bug report.

Duplicate of T1373

Ok using the same compiler I've used a year ago I also get the same result I got
a year ago (phew I thought i screwed up the test).

But with the patch this should just work once we change the used mingw-version.
I could not find a bugreport or some other information where and when this is fixed.

I've tested this again with the mingw version that is part of ubuntu and it works.

I've commited a patch to gpg4win to enable this and will check if this also
works with the debian wheezy mingw-crt version.

Thanks for the explanations.

Further analysis showed that the second call to AllowSetForeground window was
blocked by the ForegroundWindowLockTimeout. If you set this timeout to zero
everything worked as expected.

There is a discussion on this under:
http://social.msdn.microsoft.com/Forums/vstudio/en-US/09fa16ba-c6ef-410d-bec2-a99a9b9a98d9/issue-with-foregroundlocktimeout-setforegroundwindow

Which suggests a solution of setting the foregroundlocktimeout to zero before
attempting to set the foreground window. I've found this solution not applicable
for our case as we run into the lock on "AllowSetForegroundWindow" and not when
actually setting the foreground Window.

Another workaround is to call AttachThreadInput on the current foreground thread
call SetForegroundWindow and then detach again. There might be problems with
this approach so it is just used as fallback. But it should resolve this problem
for now.

What I described is done for all pinentries.

Ok, thanks I'll check what happens if

5. The agent thinks that the passphrase entered is too weak
6. The agent starts another pinentry
7. The agent sends "getinfo pid" to the pinentry (this i can see)
8. ?

1. The agent starts pinentry.
2. The agent sends "getinfo pid" to the pinentry"
3. The agents sends an "INQUIRE PINENTRY_LAUNCHED <pid>" to the caller.

4a. If the caller is gpg, gpg calls AllowSetForegroundWindow for the received
pid; gpg has been started via gpgme and gpgme has called ASFW for gpg.
4b. If the caller is gpgsm, it proxies the PINENTRY_LAUNCHED to gpgme which then
calls ASFG for the pid.

The different methods are required because gpg is a one-off process while gpgsm
may be used several times.

Yes Kleopatra uses gpgme for key generation. Still I don't see how gpgme figures
into this sorry. Should gpgme start gpg-agent and ensure that it has the
setforeground window access right?

1. The gpg-agent asks for a passphrase with pinentry -> set foreground window is

allowed.

2. If that passphrase is weak it launches a new pinentry with a confirm dialog

-> set foreground window is not allowed.

And the agent does not have the right to call allowsetforegroundwindow. In the
first case I think this might be because another component gets the PID of the
pinentry and calls allowsetforeground window (have to do further debugging to
check this)

In the second case afaik only gpg-agent is involved and no one sets
allowsetforeground window on the pid of the second pinentry.

BTW, gpgme 1.5.1 has a spawn interface which is better than to code your own in Qt.

It goes all the way back to GPGME via the assuan interface. grep for
_gpgme_allow_set_foreground_window. For GPG the assuan interface is not used.
We do it by passing our internal IOSPAWN_FLAG_ALLOW_SET_FG flag to the
gpgme-w32spawn.c helper which then uses this to call set foreground API.

Does Kleopatra always use gpgme?

I won't call that leaking memory.

With your fix it no longer crashes. But you are leaking memory in case
default_homedir returns allocated memory from read_w32_registry_string or
standard_homedir with a successful call to w32_shgetfolderpath.

As the result should be cached in the static variable this is probably not an
issue..

I just pushed a fix.

The problem with gpgme is that we need to stop the Explorer if we want to update
or uninstall gpgme. Given tha we can't use gpgex with the portable version
anyway, I think it is better to keep the existing code and don't switch to gpgme.

Using gpgme would be nice of course to avoid duplicated functionality (this same
stuff is also implemented in gpgol although without the bug) but remember that
we would then also need a x64 version of gpgme.

The bug is pretty obvious. I consider to rewrite it by calling gpgconf
--list-dirs to get the home directory. This would be simliar to what we do in
gpgme. Or well, we could link to to gpgme to and make use of its higher level
interface.

Thanks for looking at this. If you like I could test your fixes. I currently
have a build setup and a test setup where I can reproduce the crash.

Btw. Maybe I don't understand c++ enough but afaik this just makes no sense and
is broken:

  try { name = ((string) dir) + "\\S.uiserver"; } catch (...) {}

should be rather something like:
if (dir)
name = string(dir) + "\\S.uiserver";

I have some fixes sitting here in my local repo. I need to check them.

Closing this as a duplicate of T1516

Duplicate of T1516

Sorry for the delay, the passphrase is 512 characters long (now I should change
it after publishing that here ;-)) and just ascii characters.

With GnuPG 1.x, Enigmail takes care of presenting the passphrase dialog.
With GnuPG 2.x GnuPG does it of its own. For that it spawns a small tool
called pinentry which asks for the passphrase. We actually have several
versions of that pinentry. The one you are using is based on Qt (a toolkit) and
has a limit of 256 bytes for the passphrase. The limit may actually be lower if
you are using non-ascii characters, but I can't see how that value is not
sufficient.

How long is your passphrase and does it contain many non-ascii characters (e.g.
Umlauts)?

Hello, Thank you for your reply.

I used the gpg4win-2.2.1.exe binary which I downloaded from gpg4win.org

The popup I mentioned is the screen that asks me for my password when I try to
open an encrypted mail in my mailbox via thunderbird/enigmail. See the
screenshot. In the newer gpg version this popup is replaced by a prompt screen
that says pinentry and will allow only for shorter passwords.

I understand that my password is exceptional long, as I still was (and maybe
still am) a beginner on the encrypted mail part. But backwards compatibility
seems pretty important in the case of encrypted mails and passwords to decrypt them.

What do you mean by "openpgp popup"?

Which installation options did you used whethn installing gpg4win? Depending on
the version you get a different pinentry version - we have a qt based one, a GTK
based base, and a very simple native windows pinentry.

sorry can't delete

Mmmh when I run:

#include <stdio.h>
int _dowildcard = -1;
int main (int argc, char **argv)
{

int i = 0;
for ( i = 0; i< argc; i++) {
    printf("%s\n", argv[i]);
}
return 0;

}

With the command line *.* it just prints "*.*". Linking with CRT_glob.o directly
also leads to the same result.

Hi,
there is apparently a compile option "enable-wildcard" for the mingw-w64 c runtime.

But from:
http://mingw-w64.sourcearchive.com/documentation/0~20100125-3/wildcard_8c-source.html

I take it that you can also enable it in the program by defining int _dowildcard

-1;

I'll test it and let you know if this worked.

For diagnostic reasons: could you try with Kleopatra as well?

Maybe this is relevant:
I only installed gpg, gpgEX and GPA from the GPG4Win package.

Using gpg.exe on the command line works perfect.
I can en- and decrypt files and sign and whatnot.
Only gpgEX is affected.

The crash happen regardless of what I did before. Usually I use Q-Dir as file
browser. When I trigger a gpgex action via context menu in one Q-Dir OR Windows
Explorer the program (the one I used) crashes.

I set GNUPGHOME as a user variable via Windows' Extended System Settings.

I followed Bernhard's suggestion and attached the GpgEX debug log.

Please provide a proper bug report so that we are able to replicate this. For
example, how did you set GNUGHOME, what process have been started before that
etc. A complete run trough on how to exhibit the bug would be a appreciated.

Thanks for asking again, I did not remember that GPGex was missing from the
compendium.

It works similiar to GpgOL, see
http://git.gnupg.org/cgi-
bin/gitweb.cgi?p=gpgex.git;a=blob_plain;f=README;hb=HEAD
and in German:
http://lists.wald.intevation.org/pipermail/gpg4win-users-de/2013-
August/000593.html