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gpg: Improve WKD by importing only the requested UID.

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* g10/keyserver.c: Include mbox-util.h.
(keyserver_import_wkd): Do not use the global import options but
employ an import filter.
--

We also make sure that an mbox has been passed to keyserver_import_wkd
so it may also be called with a complete user id (which is currently
not the case).

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-09-28 15:35:31 +02:00
parent 80393661bd
commit cbf2ac6669
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
1 changed files with 32 additions and 5 deletions
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37
g10/keyserver.c
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@ -41,6 +41,7 @@
#include "keyserver-internal.h"
#include "util.h"
#include "membuf.h"
#include "mbox-util.h"
#include "call-dirmngr.h"
#ifdef HAVE_W32_SYSTEM
@ -2011,29 +2012,55 @@ keyserver_import_wkd (ctrl_t ctrl, const char *name,
unsigned char **fpr, size_t *fpr_len)
{
gpg_error_t err;
char *mbox;
estream_t key;
err = gpg_dirmngr_wkd_get (ctrl, name, &key);
/* We want to work on the mbox. That is what dirmngr will do anyway
* and we need the mbox for the import filter anyway. */
mbox = mailbox_from_userid (name);
if (!mbox)
{
err = gpg_error_from_syserror ();
if (gpg_err_code (err) == GPG_ERR_EINVAL)
err = gpg_error (GPG_ERR_INV_USER_ID);
return err;
}
err = gpg_dirmngr_wkd_get (ctrl, mbox, &key);
if (err)
;
else if (key)
{
int armor_status = opt.no_armor;
import_filter_t save_filt;
/* Keys returned via WKD are in binary format. */
opt.no_armor = 1;
save_filt = save_and_clear_import_filter ();
if (!save_filt)
err = gpg_error_from_syserror ();
else
{
char *filtstr = es_bsprintf ("keep-uid=mbox = %s", mbox);
err = filtstr? 0 : gpg_error_from_syserror ();
if (!err)
err = parse_and_set_import_filter (filtstr);
xfree (filtstr);
if (!err)
err = import_keys_es_stream (ctrl, key, NULL, fpr, fpr_len,
IMPORT_NO_SECKEY,
NULL, NULL);
err = import_keys_es_stream (ctrl, key, NULL, fpr, fpr_len,
(opt.keyserver_options.import_options
| IMPORT_NO_SECKEY),
NULL, NULL);
}
restore_import_filter (save_filt);
opt.no_armor = armor_status;
es_fclose (key);
key = NULL;
}
xfree (mbox);
return err;
}