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* mainproc.c (check_sig_and_print): If we're honoring preferred

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keyservers, and auto-key-retrieve is set, try and get a missing key from
the preferred keyserver subpacket when we verify the sig.

* gpgv.c (parse_preferred_keyserver, free_keyserver_spec): Stubs.

* keyserver.c (keyidlist): Use new parse_preferred_keyserver function.
(keyserver_work): Use the passed-in keyserver spec rather than the options
global one.

* keyserver-internal.h, keyserver.c (parse_preferred_keyserver): New
function to take a sig and return a split out keyserver_spec.
(keyserver_import_keyid): Now takes a keyserver_spec.
This commit is contained in:
David Shaw 2004-05-22 03:50:20 +00:00
parent 50f4faee4a
commit bc3f1a148f
5 changed files with 107 additions and 41 deletions
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15
g10/ChangeLog
View File

@ -1,5 +1,20 @@
2004-05-21 David Shaw <dshaw@jabberwocky.com>
* mainproc.c (check_sig_and_print): If we're honoring preferred
keyservers, and auto-key-retrieve is set, try and get a missing
key from the preferred keyserver subpacket when we verify the sig.
* gpgv.c (parse_preferred_keyserver, free_keyserver_spec): Stubs.
* keyserver.c (keyidlist): Use new parse_preferred_keyserver
function.
(keyserver_work): Use the passed-in keyserver spec rather than the
options global one.
* keyserver-internal.h, keyserver.c (parse_preferred_keyserver):
New function to take a sig and return a split out keyserver_spec.
(keyserver_import_keyid): Now takes a keyserver_spec.
* keyserver.c (keyidlist): Go back to the old fast keyid lister.
Only merge selfsigs if we have to for honor-keyserver-url.
(keyserver_refresh): Keyserver URL handler moved here.

3
g10/gpgv.c
View File

@ -331,6 +331,9 @@ passphrase_to_dek( u32 *keyid, int pubkey_algo,
return NULL;
}
struct keyserver_spec *parse_preferred_keyserver(PKT_signature *sig) {return NULL;}
void free_keyserver_spec(struct keyserver_spec *keyserver) {}
/* Stubs to avoid linking to photoid.c */
void show_photos(const struct user_attribute *attrs,int count,PKT_public_key *pk) {}
int parse_image_header(const struct user_attribute *attr,byte *type,u32 *len) {return 0;}

23
g10/keyserver-internal.h
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@ -1,4 +1,22 @@
/* Keyserver internals */
/* keyserver-internal.h - Keyserver internals
* Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef _KEYSERVER_INTERNAL_H_
#define _KEYSERVER_INTERNAL_H_
@ -13,10 +31,11 @@ void free_keyserver_spec(struct keyserver_spec *keyserver);
struct keyserver_spec *parse_keyserver_uri(const char *uri,int require_scheme,
const char *configname,
unsigned int configlineno);
struct keyserver_spec *parse_preferred_keyserver(PKT_signature *sig);
int keyserver_export(STRLIST users);
int keyserver_import(STRLIST users);
int keyserver_import_fprint(const byte *fprint,size_t fprint_len);
int keyserver_import_keyid(u32 *keyid);
int keyserver_import_keyid(u32 *keyid,struct keyserver_spec *keyserver);
int keyserver_refresh(STRLIST users);
int keyserver_search(STRLIST tokens);

56
g10/keyserver.c
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@ -282,6 +282,27 @@ parse_keyserver_uri(const char *uri,int require_scheme,
return NULL;
}
struct keyserver_spec *
parse_preferred_keyserver(PKT_signature *sig)
{
struct keyserver_spec *spec=NULL;
const byte *p;
size_t plen;
p=parse_sig_subpkt(sig->hashed,SIGSUBPKT_PREF_KS,&plen);
if(p && plen)
{
byte *dupe=m_alloc(plen+1);
memcpy(dupe,p,plen);
dupe[plen]='\0';
spec=parse_keyserver_uri(dupe,0,NULL,0);
m_free(dupe);
}
return spec;
}
static void
print_keyrec(int number,struct keyrec *keyrec)
{
@ -1173,7 +1194,7 @@ keyserver_work(int action,STRLIST list,KEYDB_SEARCH_DESC *desc,
{
case KEYSERVER_SCHEME_NOT_FOUND:
log_error(_("no handler for keyserver scheme \"%s\"\n"),
opt.keyserver->scheme);
keyserver->scheme);
break;
case KEYSERVER_NOT_SUPPORTED:
@ -1181,12 +1202,12 @@ keyserver_work(int action,STRLIST list,KEYDB_SEARCH_DESC *desc,
"scheme \"%s\"\n"),
action==GET?"get":action==SEND?"send":
action==SEARCH?"search":"unknown",
opt.keyserver->scheme);
keyserver->scheme);
break;
case KEYSERVER_VERSION_ERROR:
log_error(_("gpgkeys_%s does not support handler version %d\n"),
opt.keyserver->scheme,KEYSERVER_PROTO_VERSION);
keyserver->scheme,KEYSERVER_PROTO_VERSION);
break;
case KEYSERVER_INTERNAL_ERROR:
@ -1299,7 +1320,7 @@ keyserver_import_fprint(const byte *fprint,size_t fprint_len)
}
int
keyserver_import_keyid(u32 *keyid)
keyserver_import_keyid(u32 *keyid,struct keyserver_spec *keyserver)
{
KEYDB_SEARCH_DESC desc;
@ -1309,7 +1330,7 @@ keyserver_import_keyid(u32 *keyid)
desc.u.kid[0]=keyid[0];
desc.u.kid[1]=keyid[1];
return keyserver_work(GET,NULL,&desc,1,opt.keyserver);
return keyserver_work(GET,NULL,&desc,1,keyserver);
}
/* code mostly stolen from do_export_stream */
@ -1430,28 +1451,11 @@ keyidlist(STRLIST users,KEYDB_SEARCH_DESC **klist,int *count,int fakev3)
}
}
/* Try and parse the keyserver URL. If it doesn't work,
then we end up writing NULL which indicates we are
the same as any other key. */
if(uid && sig)
{
const byte *p;
size_t plen;
p=parse_sig_subpkt(sig->hashed,SIGSUBPKT_PREF_KS,&plen);
if(p && plen)
{
byte *dupe=m_alloc(plen+1);
memcpy(dupe,p,plen);
dupe[plen]='\0';
/* Try and parse the keyserver URL. If it
doesn't work, then we end up writing NULL
which indicates we are the same as any other
key. */
(*klist)[*count].skipfncvalue=
parse_keyserver_uri(dupe,0,NULL,0);
m_free(dupe);
}
}
(*klist)[*count].skipfncvalue=parse_preferred_keyserver(sig);
}
(*count)++;

51
g10/mainproc.c
View File

@ -1345,20 +1345,8 @@ check_sig_and_print( CTX c, KBNODE node )
keystr(sig->keyid));
rc = do_check_sig(c, node, NULL, &is_expkey, &is_revkey );
if( rc == G10ERR_NO_PUBKEY && opt.keyserver
&& (opt.keyserver_options.options&KEYSERVER_AUTO_KEY_RETRIEVE))
{
int res;
ctrl.in_auto_key_retrieve++;
res=keyserver_import_keyid ( sig->keyid );
ctrl.in_auto_key_retrieve--;
if(!res)
rc = do_check_sig(c, node, NULL, &is_expkey, &is_revkey );
}
/* If the key still isn't found, try to inform the user where it
can be found. */
/* If the key isn't found, check for a preferred keyserver */
if(rc==G10ERR_NO_PUBKEY && sig->flags.pref_ks)
{
@ -1375,9 +1363,46 @@ check_sig_and_print( CTX c, KBNODE node )
log_info(_("Key available at: ") );
print_string( log_stream(), p, n, 0 );
putc( '\n', log_stream() );
if(opt.keyserver_options.options&KEYSERVER_AUTO_KEY_RETRIEVE
&& opt.keyserver_options.options&KEYSERVER_HONOR_KEYSERVER_URL)
{
struct keyserver_spec *spec;
spec=parse_preferred_keyserver(sig);
if(spec)
{
int res;
ctrl.in_auto_key_retrieve++;
res=keyserver_import_keyid(sig->keyid,spec);
ctrl.in_auto_key_retrieve--;
if(!res)
rc=do_check_sig(c, node, NULL, &is_expkey, &is_revkey );
free_keyserver_spec(spec);
if(!rc)
break;
}
}
}
}
/* If the preferred keyserver thing above didn't work, this is a
second try. */
if( rc == G10ERR_NO_PUBKEY && opt.keyserver
&& (opt.keyserver_options.options&KEYSERVER_AUTO_KEY_RETRIEVE))
{
int res;
ctrl.in_auto_key_retrieve++;
res=keyserver_import_keyid ( sig->keyid, opt.keyserver );
ctrl.in_auto_key_retrieve--;
if(!res)
rc = do_check_sig(c, node, NULL, &is_expkey, &is_revkey );
}
if( !rc || rc == G10ERR_BAD_SIGN ) {
KBNODE un, keyblock;
int count=0, statno;