52025ce273d19a0272082049f2851d3220afa369
[gnupg.git] / g10 / keyedit.c
1 /* keyedit.c - keyedit stuff
2  * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3  *               2005 Free Software Foundation, Inc.
4  *
5  * This file is part of GnuPG.
6  *
7  * GnuPG is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * GnuPG is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
20  * USA.
21  */
22
23 #include <config.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <errno.h>
28 #include <assert.h>
29 #include <ctype.h>
30 #ifdef HAVE_LIBREADLINE
31 #include <stdio.h>
32 #include <readline/readline.h>
33 #endif
34 #include "options.h"
35 #include "packet.h"
36 #include "errors.h"
37 #include "iobuf.h"
38 #include "keydb.h"
39 #include "memory.h"
40 #include "photoid.h"
41 #include "util.h"
42 #include "main.h"
43 #include "trustdb.h"
44 #include "filter.h"
45 #include "ttyio.h"
46 #include "status.h"
47 #include "i18n.h"
48 #include "keyserver-internal.h"
49
50 static void show_prefs( PKT_user_id *uid, PKT_signature *selfsig, int verbose);
51 static void show_names(KBNODE keyblock,PKT_public_key *pk,
52                        unsigned int flag,int with_prefs);
53 static void show_key_with_all_names( KBNODE keyblock, int only_marked,
54             int with_revoker, int with_fpr, int with_subkeys, int with_prefs );
55 static void show_key_and_fingerprint( KBNODE keyblock );
56 static int menu_adduid( KBNODE keyblock, KBNODE sec_keyblock,
57                         int photo, const char *photo_name );
58 static void menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock );
59 static int menu_delsig( KBNODE pub_keyblock );
60 static int menu_clean(KBNODE keyblock,int self_only);
61 static void menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
62 static int menu_addrevoker( KBNODE pub_keyblock,
63                             KBNODE sec_keyblock, int sensitive );
64 static int menu_expire( KBNODE pub_keyblock, KBNODE sec_keyblock );
65 static int menu_backsign(KBNODE pub_keyblock,KBNODE sec_keyblock);
66 static int menu_set_primary_uid( KBNODE pub_keyblock, KBNODE sec_keyblock );
67 static int menu_set_preferences( KBNODE pub_keyblock, KBNODE sec_keyblock );
68 static int menu_set_keyserver_url (const char *url,
69                                    KBNODE pub_keyblock, KBNODE sec_keyblock );
70 static int menu_select_uid( KBNODE keyblock, int idx );
71 static int menu_select_uid_namehash( KBNODE keyblock, const char *namehash );
72 static int menu_select_key( KBNODE keyblock, int idx );
73 static int count_uids( KBNODE keyblock );
74 static int count_uids_with_flag( KBNODE keyblock, unsigned flag );
75 static int count_keys_with_flag( KBNODE keyblock, unsigned flag );
76 static int count_selected_uids( KBNODE keyblock );
77 static int real_uids_left( KBNODE keyblock );
78 static int count_selected_keys( KBNODE keyblock );
79 static int menu_revsig( KBNODE keyblock );
80 static int menu_revuid( KBNODE keyblock, KBNODE sec_keyblock );
81 static int menu_revkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
82 static int menu_revsubkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
83 static int enable_disable_key( KBNODE keyblock, int disable );
84 static void menu_showphoto( KBNODE keyblock );
85
86 static int update_trust=0;
87
88 #define CONTROL_D ('D' - 'A' + 1)
89
90 #define NODFLG_BADSIG (1<<0)  /* bad signature */
91 #define NODFLG_NOKEY  (1<<1)  /* no public key */
92 #define NODFLG_SIGERR (1<<2)  /* other sig error */
93
94 #define NODFLG_MARK_A (1<<4)  /* temporary mark */
95 #define NODFLG_DELSIG (1<<5)  /* to be deleted */
96
97 #define NODFLG_SELUID (1<<8)  /* indicate the selected userid */
98 #define NODFLG_SELKEY (1<<9)  /* indicate the selected key */
99 #define NODFLG_SELSIG (1<<10) /* indicate a selected signature */
100
101 struct sign_attrib {
102     int non_exportable,non_revocable;
103     struct revocation_reason_info *reason;
104     byte trust_depth,trust_value;
105     char *trust_regexp;
106 };
107
108
109 #ifdef ENABLE_CARD_SUPPORT
110 /* Given a node SEC_NODE with a secret key or subkey, locate the
111    corresponding public key from pub_keyblock. */
112 static PKT_public_key *
113 find_pk_from_sknode (KBNODE pub_keyblock, KBNODE sec_node)
114 {
115   KBNODE node = pub_keyblock;
116   PKT_secret_key *sk;
117   PKT_public_key *pk;
118   
119   if (sec_node->pkt->pkttype == PKT_SECRET_KEY
120       && node->pkt->pkttype == PKT_PUBLIC_KEY)
121     return node->pkt->pkt.public_key;
122   if (sec_node->pkt->pkttype != PKT_SECRET_SUBKEY)
123     return NULL;
124   sk = sec_node->pkt->pkt.secret_key;
125   for (; node; node = node->next)
126     if (node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
127       {
128         pk = node->pkt->pkt.public_key;
129         if (pk->keyid[0] == sk->keyid[0] && pk->keyid[1] == sk->keyid[1])
130           return pk;
131       }
132       
133   return NULL;
134 }
135 #endif /* ENABLE_CARD_SUPPORT */
136
137
138 /* TODO: Fix duplicated code between here and the check-sigs/list-sigs
139    code in keylist.c. */
140 static int
141 print_and_check_one_sig_colon( KBNODE keyblock, KBNODE node,
142                                int *inv_sigs, int *no_key, int *oth_err,
143                                int *is_selfsig, int print_without_key )
144 {
145   PKT_signature *sig = node->pkt->pkt.signature;
146   int rc, sigrc;
147
148   /* TODO: Make sure a cached sig record here still has the pk that
149      issued it.  See also keylist.c:list_keyblock_print */
150
151   switch((rc=check_key_signature(keyblock,node,is_selfsig)))
152     {
153     case 0:
154       node->flag &= ~(NODFLG_BADSIG|NODFLG_NOKEY|NODFLG_SIGERR);
155       sigrc = '!';
156       break;
157     case G10ERR_BAD_SIGN:
158       node->flag = NODFLG_BADSIG;
159       sigrc = '-';
160       if( inv_sigs )
161         ++*inv_sigs;
162       break;
163     case G10ERR_NO_PUBKEY:
164     case G10ERR_UNU_PUBKEY:
165       node->flag = NODFLG_NOKEY;
166       sigrc = '?';
167       if( no_key )
168         ++*no_key;
169       break;
170     default:
171       node->flag = NODFLG_SIGERR;
172       sigrc = '%';
173       if( oth_err )
174         ++*oth_err;
175       break;
176     }
177
178   if( sigrc != '?' || print_without_key )
179     {
180       printf("sig:%c::%d:%08lX%08lX:%lu:%lu:",
181              sigrc,sig->pubkey_algo,(ulong)sig->keyid[0],(ulong)sig->keyid[1],
182              (ulong)sig->timestamp,(ulong)sig->expiredate);
183
184       if(sig->trust_depth || sig->trust_value)
185         printf("%d %d",sig->trust_depth,sig->trust_value);
186
187       printf(":");
188
189       if(sig->trust_regexp)
190         print_string(stdout,sig->trust_regexp,strlen(sig->trust_regexp),':');
191
192       printf("::%02x%c\n",sig->sig_class,sig->flags.exportable?'x':'l');
193
194       if(opt.show_subpackets)
195         print_subpackets_colon(sig);
196     }
197
198   return (sigrc == '!');
199 }
200
201
202 /****************
203  * Print information about a signature, check it and return true
204  * if the signature is okay. NODE must be a signature packet.
205  */
206 static int
207 print_and_check_one_sig( KBNODE keyblock, KBNODE node,
208                          int *inv_sigs, int *no_key, int *oth_err,
209                         int *is_selfsig, int print_without_key )
210 {
211     PKT_signature *sig = node->pkt->pkt.signature;
212     int rc, sigrc;
213     int is_rev = sig->sig_class == 0x30;
214
215     /* TODO: Make sure a cached sig record here still has the pk that
216        issued it.  See also keylist.c:list_keyblock_print */
217
218     switch( (rc = check_key_signature( keyblock, node, is_selfsig)) ) {
219       case 0:
220         node->flag &= ~(NODFLG_BADSIG|NODFLG_NOKEY|NODFLG_SIGERR);
221         sigrc = '!';
222         break;
223       case G10ERR_BAD_SIGN:
224         node->flag = NODFLG_BADSIG;
225         sigrc = '-';
226         if( inv_sigs )
227             ++*inv_sigs;
228         break;
229       case G10ERR_NO_PUBKEY:
230       case G10ERR_UNU_PUBKEY:
231         node->flag = NODFLG_NOKEY;
232         sigrc = '?';
233         if( no_key )
234             ++*no_key;
235         break;
236       default:
237         node->flag = NODFLG_SIGERR;
238         sigrc = '%';
239         if( oth_err )
240             ++*oth_err;
241         break;
242     }
243     if( sigrc != '?' || print_without_key ) {
244         tty_printf("%s%c%c %c%c%c%c%c%c %s %s",
245                    is_rev? "rev":"sig",sigrc,
246                    (sig->sig_class-0x10>0 &&
247                     sig->sig_class-0x10<4)?'0'+sig->sig_class-0x10:' ',
248                    sig->flags.exportable?' ':'L',
249                    sig->flags.revocable?' ':'R',
250                    sig->flags.policy_url?'P':' ',
251                    sig->flags.notation?'N':' ',
252                    sig->flags.expired?'X':' ',
253                    (sig->trust_depth>9)?'T':
254                    (sig->trust_depth>0)?'0'+sig->trust_depth:' ',
255                    keystr(sig->keyid),datestr_from_sig(sig));
256         if(opt.list_options&LIST_SHOW_SIG_EXPIRE)
257           tty_printf(" %s",expirestr_from_sig(sig));
258         tty_printf("  ");
259         if( sigrc == '%' )
260             tty_printf("[%s] ", g10_errstr(rc) );
261         else if( sigrc == '?' )
262             ;
263         else if( *is_selfsig ) {
264             tty_printf( is_rev? _("[revocation]")
265                               : _("[self-signature]") );
266         }
267         else
268           {
269             size_t n;
270             char *p = get_user_id( sig->keyid, &n );
271             tty_print_utf8_string2(p, n, opt.screen_columns-keystrlen()-26-
272                                ((opt.list_options&LIST_SHOW_SIG_EXPIRE)?11:0));
273             xfree(p);
274           }
275         tty_printf("\n");
276
277         if(sig->flags.policy_url && (opt.list_options&LIST_SHOW_POLICY_URLS))
278           show_policy_url(sig,3,0);
279
280         if(sig->flags.notation && (opt.list_options&LIST_SHOW_NOTATIONS))
281           show_notation(sig,3,0,
282                         ((opt.list_options&LIST_SHOW_STD_NOTATIONS)?1:0)+
283                         ((opt.list_options&LIST_SHOW_USER_NOTATIONS)?2:0));
284
285         if(sig->flags.pref_ks && (opt.list_options&LIST_SHOW_KEYSERVER_URLS))
286           show_keyserver_url(sig,3,0);
287     }
288
289     return (sigrc == '!');
290 }
291
292
293
294 /****************
295  * Check the keysigs and set the flags to indicate errors.
296  * Returns true if error found.
297  */
298 static int
299 check_all_keysigs( KBNODE keyblock, int only_selected )
300 {
301     KBNODE kbctx;
302     KBNODE node;
303     int inv_sigs = 0;
304     int no_key = 0;
305     int oth_err = 0;
306     int has_selfsig = 0;
307     int mis_selfsig = 0;
308     int selected = !only_selected;
309     int anyuid = 0;
310
311     for( kbctx=NULL; (node=walk_kbnode( keyblock, &kbctx, 0)) ; ) {
312         if( node->pkt->pkttype == PKT_USER_ID ) {
313             PKT_user_id *uid = node->pkt->pkt.user_id;
314
315             if( only_selected )
316                 selected = (node->flag & NODFLG_SELUID);
317             if( selected ) {
318                 tty_printf("uid  ");
319                 tty_print_utf8_string( uid->name, uid->len );
320                 tty_printf("\n");
321                 if( anyuid && !has_selfsig )
322                     mis_selfsig++;
323                 has_selfsig = 0;
324                 anyuid = 1;
325             }
326         }
327         else if( selected && node->pkt->pkttype == PKT_SIGNATURE
328                  && ( (node->pkt->pkt.signature->sig_class&~3) == 0x10
329                      || node->pkt->pkt.signature->sig_class == 0x30 )  ) {
330             int selfsig;
331
332             if( print_and_check_one_sig( keyblock, node, &inv_sigs,
333                                         &no_key, &oth_err, &selfsig, 0 ) ) {
334                 if( selfsig )
335                     has_selfsig = 1;
336             }
337             /* Hmmm: should we update the trustdb here? */
338         }
339     }
340     if( !has_selfsig )
341         mis_selfsig++;
342     if( inv_sigs == 1 )
343         tty_printf(_("1 bad signature\n") );
344     else if( inv_sigs )
345         tty_printf(_("%d bad signatures\n"), inv_sigs );
346     if( no_key == 1 )
347         tty_printf(_("1 signature not checked due to a missing key\n") );
348     else if( no_key )
349         tty_printf(_("%d signatures not checked due to missing keys\n"), no_key );
350     if( oth_err == 1 )
351         tty_printf(_("1 signature not checked due to an error\n") );
352     else if( oth_err )
353         tty_printf(_("%d signatures not checked due to errors\n"), oth_err );
354     if( mis_selfsig == 1 )
355         tty_printf(_("1 user ID without valid self-signature detected\n"));
356     else if( mis_selfsig  )
357         tty_printf(_("%d user IDs without valid self-signatures detected\n"),
358                                                                     mis_selfsig);
359
360     return inv_sigs || no_key || oth_err || mis_selfsig;
361 }
362
363
364 static int
365 sign_mk_attrib( PKT_signature *sig, void *opaque )
366 {
367     struct sign_attrib *attrib = opaque;
368     byte buf[8];
369
370     if( attrib->non_exportable ) {
371         buf[0] = 0; /* not exportable */
372         build_sig_subpkt( sig, SIGSUBPKT_EXPORTABLE, buf, 1 );
373     }
374
375     if( attrib->non_revocable ) {
376         buf[0] = 0; /* not revocable */
377         build_sig_subpkt( sig, SIGSUBPKT_REVOCABLE, buf, 1 );
378     }
379
380     if( attrib->reason )
381         revocation_reason_build_cb( sig, attrib->reason );
382
383     if(attrib->trust_depth)
384       {
385         /* Not critical.  If someone doesn't understand trust sigs,
386            this can still be a valid regular signature. */
387         buf[0] = attrib->trust_depth;
388         buf[1] = attrib->trust_value;
389         build_sig_subpkt(sig,SIGSUBPKT_TRUST,buf,2);
390
391         /* Critical.  If someone doesn't understands regexps, this
392            whole sig should be invalid.  Note the +1 for the length -
393            regexps are null terminated. */
394         if(attrib->trust_regexp)
395           build_sig_subpkt(sig,SIGSUBPKT_FLAG_CRITICAL|SIGSUBPKT_REGEXP,
396                            attrib->trust_regexp,
397                            strlen(attrib->trust_regexp)+1);
398       }
399
400     return 0;
401 }
402
403 static void
404 trustsig_prompt(byte *trust_value,byte *trust_depth,char **regexp)
405 {
406   char *p;
407
408   *trust_value=0;
409   *trust_depth=0;
410   *regexp=NULL;
411
412   /* Same string as pkclist.c:do_edit_ownertrust */
413   tty_printf(_("Please decide how far you trust this user to correctly verify"
414                " other users' keys\n(by looking at passports, checking"
415                " fingerprints from different sources, etc.)\n"));
416   tty_printf("\n");
417   tty_printf (_("  %d = I trust marginally\n"), 1);
418   tty_printf (_("  %d = I trust fully\n"), 2);
419   tty_printf("\n");
420
421   while(*trust_value==0)
422     {
423       p = cpr_get("trustsig_prompt.trust_value",_("Your selection? "));
424       trim_spaces(p);
425       cpr_kill_prompt();
426       /* 60 and 120 are as per RFC2440 */
427       if(p[0]=='1' && !p[1])
428         *trust_value=60;
429       else if(p[0]=='2' && !p[1])
430         *trust_value=120;
431       xfree(p);
432     }
433
434   tty_printf("\n");
435
436   tty_printf(_(
437               "Please enter the depth of this trust signature.\n"
438               "A depth greater than 1 allows the key you are signing to make\n"
439               "trust signatures on your behalf.\n"));
440   tty_printf("\n");
441
442   while(*trust_depth==0)
443     {
444       p = cpr_get("trustsig_prompt.trust_depth",_("Your selection? "));
445       trim_spaces(p);
446       cpr_kill_prompt();
447       *trust_depth=atoi(p);
448       xfree(p);
449     }
450
451   tty_printf("\n");
452
453   tty_printf(_("Please enter a domain to restrict this signature, "
454                "or enter for none.\n"));
455
456   tty_printf("\n");
457
458   p=cpr_get("trustsig_prompt.trust_regexp",_("Your selection? "));
459   trim_spaces(p);
460   cpr_kill_prompt();
461
462   if(strlen(p)>0)
463     {
464       char *q=p;
465       int regexplen=100,ind;
466
467       *regexp=xmalloc(regexplen);
468
469       /* Now mangle the domain the user entered into a regexp.  To do
470          this, \-escape everything that isn't alphanumeric, and attach
471          "<[^>]+[@.]" to the front, and ">$" to the end. */
472
473       strcpy(*regexp,"<[^>]+[@.]");
474       ind=strlen(*regexp);
475
476       while(*q)
477         {
478           if(!((*q>='A' && *q<='Z')
479                || (*q>='a' && *q<='z') || (*q>='0' && *q<='9')))
480             (*regexp)[ind++]='\\';
481
482           (*regexp)[ind++]=*q;
483
484           if((regexplen-ind)<3)
485             {
486               regexplen+=100;
487               *regexp=xrealloc(*regexp,regexplen);
488             }
489
490           q++;
491         }
492
493       (*regexp)[ind]='\0';
494       strcat(*regexp,">$");
495     }
496
497   xfree(p);
498   tty_printf("\n");
499 }
500
501 /****************
502  * Loop over all locusr and and sign the uids after asking.
503  * If no user id is marked, all user ids will be signed;
504  * if some user_ids are marked those will be signed.
505  */
506 static int
507 sign_uids( KBNODE keyblock, STRLIST locusr, int *ret_modified,
508            int local, int nonrevocable, int trust, int interactive )
509 {
510     int rc = 0;
511     SK_LIST sk_list = NULL;
512     SK_LIST sk_rover = NULL;
513     PKT_secret_key *sk = NULL;
514     KBNODE node, uidnode;
515     PKT_public_key *primary_pk=NULL;
516     int select_all = !count_selected_uids(keyblock) || interactive;
517     int all_v3=1;
518
519     /* Are there any non-v3 sigs on this key already? */
520     if(PGP2)
521       for(node=keyblock;node;node=node->next)
522         if(node->pkt->pkttype==PKT_SIGNATURE &&
523            node->pkt->pkt.signature->version>3)
524           {
525             all_v3=0;
526             break;
527           }
528
529     /* build a list of all signators.
530      *    
531      * We use the CERT flag to request the primary which must always
532      * be one which is capable of signing keys.  I can't see a reason
533      * why to sign keys using a subkey.  Implementation of USAGE_CERT
534      * is just a hack in getkey.c and does not mean that a subkey
535      * marked as certification capable will be used. */
536     rc=build_sk_list( locusr, &sk_list, 0, PUBKEY_USAGE_CERT);
537     if( rc )
538         goto leave;
539
540     /* loop over all signators */
541     for( sk_rover = sk_list; sk_rover; sk_rover = sk_rover->next ) {
542         u32 sk_keyid[2],pk_keyid[2];
543         char *p,*trust_regexp=NULL;
544         int force_v4=0,class=0,selfsig=0;
545         u32 duration=0,timestamp=0;
546         byte trust_depth=0,trust_value=0;
547
548         if(local || nonrevocable || trust ||
549            opt.cert_policy_url || opt.cert_notation_data)
550           force_v4=1;
551
552         /* we have to use a copy of the sk, because make_keysig_packet
553          * may remove the protection from sk and if we did other
554          * changes to the secret key, we would save the unprotected
555          * version */
556         if( sk )
557             free_secret_key(sk);
558         sk = copy_secret_key( NULL, sk_rover->sk );
559         keyid_from_sk( sk, sk_keyid );
560         /* set mark A for all selected user ids */
561         for( node=keyblock; node; node = node->next ) {
562             if( select_all || (node->flag & NODFLG_SELUID) )
563                 node->flag |= NODFLG_MARK_A;
564             else
565                 node->flag &= ~NODFLG_MARK_A;
566         }
567         /* reset mark for uids which are already signed */
568         uidnode = NULL;
569         for( node=keyblock; node; node = node->next ) {
570             if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
571                 primary_pk=node->pkt->pkt.public_key;
572                 keyid_from_pk( primary_pk, pk_keyid );
573
574                 /* Is this a self-sig? */
575                 if(pk_keyid[0]==sk_keyid[0] && pk_keyid[1]==sk_keyid[1])
576                   {
577                     selfsig=1;
578                     /* Do not force a v4 sig here, otherwise it would
579                        be difficult to remake a v3 selfsig.  If this
580                        is a v3->v4 promotion case, then we set
581                        force_v4 later anyway. */
582                     force_v4=0;
583                   }
584             }
585             else if( node->pkt->pkttype == PKT_USER_ID )
586               {
587                 uidnode = (node->flag & NODFLG_MARK_A)? node : NULL;
588                 if(uidnode)
589                   {
590                     int yesreally=0;
591                     char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
592                                               uidnode->pkt->pkt.user_id->len,
593                                               0);
594
595                     if(uidnode->pkt->pkt.user_id->is_revoked)
596                       {
597                         tty_printf(_("User ID \"%s\" is revoked."),user);
598
599                         if(selfsig)
600                           tty_printf("\n");
601                         else if(opt.expert)
602                           {
603                             tty_printf("\n");
604                             /* No, so remove the mark and continue */
605                             if(!cpr_get_answer_is_yes("sign_uid.revoke_okay",
606                                                       _("Are you sure you "
607                                                         "still want to sign "
608                                                         "it? (y/N) ")))
609                               {
610                                 uidnode->flag &= ~NODFLG_MARK_A;
611                                 uidnode=NULL;
612                               }
613                             else if(interactive)
614                               yesreally=1;
615                           }
616                         else
617                           {
618                             uidnode->flag &= ~NODFLG_MARK_A;
619                             uidnode=NULL;
620                             tty_printf(_("  Unable to sign.\n"));
621                           }
622                       }
623                     else if(uidnode->pkt->pkt.user_id->is_expired)
624                       {
625                         tty_printf(_("User ID \"%s\" is expired."),user);
626
627                         if(selfsig)
628                           tty_printf("\n");
629                         else if(opt.expert)
630                           {
631                             tty_printf("\n");
632                             /* No, so remove the mark and continue */
633                             if(!cpr_get_answer_is_yes("sign_uid.expire_okay",
634                                                       _("Are you sure you "
635                                                         "still want to sign "
636                                                         "it? (y/N) ")))
637                               {
638                                 uidnode->flag &= ~NODFLG_MARK_A;
639                                 uidnode=NULL;
640                               }
641                             else if(interactive)
642                               yesreally=1;
643                           }
644                         else
645                           {
646                             uidnode->flag &= ~NODFLG_MARK_A;
647                             uidnode=NULL;
648                             tty_printf(_("  Unable to sign.\n"));
649                           }
650                       }
651                     else if(!uidnode->pkt->pkt.user_id->created && !selfsig)
652                       {
653                         tty_printf(_("User ID \"%s\" is not self-signed."),
654                                    user);
655
656                         if(opt.expert)
657                           {
658                             tty_printf("\n");
659                             /* No, so remove the mark and continue */
660                             if(!cpr_get_answer_is_yes("sign_uid.nosig_okay",
661                                                       _("Are you sure you "
662                                                         "still want to sign "
663                                                         "it? (y/N) ")))
664                               {
665                                 uidnode->flag &= ~NODFLG_MARK_A;
666                                 uidnode=NULL;
667                               }
668                             else if(interactive)
669                               yesreally=1;
670                           }
671                         else
672                           {
673                             uidnode->flag &= ~NODFLG_MARK_A;
674                             uidnode=NULL;
675                             tty_printf(_("  Unable to sign.\n"));
676                           }
677                       }
678
679                     if(uidnode && interactive && !yesreally)
680                       {
681                         tty_printf(_("User ID \"%s\" is signable.  "),user);
682                         if(!cpr_get_answer_is_yes("sign_uid.sign_okay",
683                                                   _("Sign it? (y/N) ")))
684                           {
685                             uidnode->flag &= ~NODFLG_MARK_A;
686                             uidnode=NULL;
687                           }
688                       }
689
690                     xfree(user);
691                   }
692               }
693             else if( uidnode && node->pkt->pkttype == PKT_SIGNATURE
694                 && (node->pkt->pkt.signature->sig_class&~3) == 0x10 ) {
695                 if( sk_keyid[0] == node->pkt->pkt.signature->keyid[0]
696                     && sk_keyid[1] == node->pkt->pkt.signature->keyid[1] ) {
697                     char buf[50];
698                     char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
699                                               uidnode->pkt->pkt.user_id->len,
700                                               0);
701
702                     /* It's a v3 self-sig.  Make it into a v4 self-sig? */
703                     if(node->pkt->pkt.signature->version<4 && selfsig)
704                       {
705                         tty_printf(_("The self-signature on \"%s\"\n"
706                                      "is a PGP 2.x-style signature.\n"),user);
707  
708                         /* Note that the regular PGP2 warning below
709                            still applies if there are no v4 sigs on
710                            this key at all. */
711
712                         if(opt.expert)
713                           if(cpr_get_answer_is_yes("sign_uid.v4_promote_okay",
714                                                    _("Do you want to promote "
715                                                      "it to an OpenPGP self-"
716                                                      "signature? (y/N) ")))
717                             {
718                               force_v4=1;
719                               node->flag|=NODFLG_DELSIG;
720                               xfree(user);
721                               continue;
722                             }
723                       }
724
725                     /* Is the current signature expired? */
726                     if(node->pkt->pkt.signature->flags.expired)
727                       {
728                         tty_printf(_("Your current signature on \"%s\"\n"
729                                      "has expired.\n"),user);
730
731                         if(cpr_get_answer_is_yes("sign_uid.replace_expired_okay",
732                                                  _("Do you want to issue a "
733                                                    "new signature to replace "
734                                                    "the expired one? (y/N) ")))
735                           {
736                             /* Mark these for later deletion.  We
737                                don't want to delete them here, just in
738                                case the replacement signature doesn't
739                                happen for some reason.  We only delete
740                                these after the replacement is already
741                                in place. */
742
743                             node->flag|=NODFLG_DELSIG;
744                             xfree(user);
745                             continue;
746                           }
747                       }
748
749                     if(!node->pkt->pkt.signature->flags.exportable && !local)
750                       {
751                         /* It's a local sig, and we want to make a
752                            exportable sig. */
753                         tty_printf(_("Your current signature on \"%s\"\n"
754                                      "is a local signature.\n"),user);
755
756                         if(cpr_get_answer_is_yes("sign_uid.local_promote_okay",
757                                                  _("Do you want to promote "
758                                                    "it to a full exportable "
759                                                    "signature? (y/N) ")))
760                           {
761                             /* Mark these for later deletion.  We
762                                don't want to delete them here, just in
763                                case the replacement signature doesn't
764                                happen for some reason.  We only delete
765                                these after the replacement is already
766                                in place. */
767
768                             node->flag|=NODFLG_DELSIG;
769                             xfree(user);
770                             continue;
771                           }
772                       }
773
774                     /* Fixme: see whether there is a revocation in which
775                      * case we should allow to sign it again. */
776                     if (!node->pkt->pkt.signature->flags.exportable && local)
777                       tty_printf(_(
778                               "\"%s\" was already locally signed by key %s\n"),
779                                  user,keystr_from_sk(sk));
780                     else
781                       tty_printf(_("\"%s\" was already signed by key %s\n"),
782                                  user,keystr_from_sk(sk));
783
784                     if(opt.expert
785                        && cpr_get_answer_is_yes("sign_uid.dupe_okay",
786                                                 _("Do you want to sign it "
787                                                   "again anyway? (y/N) ")))
788                       {
789                         /* Don't delete the old sig here since this is
790                            an --expert thing. */
791                         xfree(user);
792                         continue;
793                       }
794
795                     sprintf (buf, "%08lX%08lX",
796                              (ulong)sk->keyid[0], (ulong)sk->keyid[1] );
797                     write_status_text (STATUS_ALREADY_SIGNED, buf);
798                     uidnode->flag &= ~NODFLG_MARK_A; /* remove mark */
799
800                     xfree(user);
801                 }
802             }
803         }
804
805         /* check whether any uids are left for signing */
806         if( !count_uids_with_flag(keyblock, NODFLG_MARK_A) )
807           {
808             tty_printf(_("Nothing to sign with key %s\n"),keystr_from_sk(sk));
809             continue;
810           }
811
812         /* Ask whether we really should sign these user id(s) */
813         tty_printf("\n");
814         show_key_with_all_names( keyblock, 1, 0, 1, 0, 0 );
815         tty_printf("\n");
816
817         if(primary_pk->expiredate && !selfsig)
818           {
819             u32 now=make_timestamp();
820
821             if(primary_pk->expiredate<=now)
822               {
823                 tty_printf(_("This key has expired!"));
824
825                 if(opt.expert)
826                   {
827                     tty_printf("  ");
828                     if(!cpr_get_answer_is_yes("sign_uid.expired_okay",
829                                               _("Are you sure you still "
830                                                 "want to sign it? (y/N) ")))
831                       continue;
832                   }
833                 else
834                   {
835                     tty_printf(_("  Unable to sign.\n"));
836                     continue;
837                   }
838               }
839             else
840               {
841                 tty_printf(_("This key is due to expire on %s.\n"),
842                            expirestr_from_pk(primary_pk));
843
844                 if(opt.ask_cert_expire)
845                   {
846                     char *answer=cpr_get("sign_uid.expire",
847                                          _("Do you want your signature to "
848                                            "expire at the same time? (Y/n) "));
849                     if(answer_is_yes_no_default(answer,1))
850                       {
851                         /* This fixes the signature timestamp we're
852                            going to make as now.  This is so the
853                            expiration date is exactly correct, and not
854                            a few seconds off (due to the time it takes
855                            to answer the questions, enter the
856                            passphrase, etc). */
857                         timestamp=now;
858                         duration=primary_pk->expiredate-now;
859                         force_v4=1;
860                       }
861
862                     cpr_kill_prompt();
863                     xfree(answer);
864                   }
865               }
866           }
867
868         /* Only ask for duration if we haven't already set it to match
869            the expiration of the pk */
870         if(!duration && !selfsig)
871           {
872             if(opt.ask_cert_expire)
873               duration=ask_expire_interval(1,opt.def_cert_expire);
874             else
875               duration=parse_expire_string(opt.def_cert_expire);
876           }
877
878         if(duration)
879           force_v4=1;
880
881         /* Is --pgp2 on, it's a v3 key, all the sigs on the key are
882            currently v3 and we're about to sign it with a v4 sig?  If
883            so, danger! */
884         if(PGP2 && all_v3 &&
885            (sk->version>3 || force_v4) && primary_pk->version<=3)
886           {
887             tty_printf(_("You may not make an OpenPGP signature on a "
888                          "PGP 2.x key while in --pgp2 mode.\n"));
889             tty_printf(_("This would make the key unusable in PGP 2.x.\n"));
890
891             if(opt.expert)
892               {
893                 if(!cpr_get_answer_is_yes("sign_uid.v4_on_v3_okay",
894                                           _("Are you sure you still "
895                                             "want to sign it? (y/N) ")))
896                   continue;
897
898                 all_v3=0;
899               }
900             else
901               continue;
902           }
903
904         if(selfsig)
905           ;
906         else
907           {
908             if(opt.batch || !opt.ask_cert_level)
909               class=0x10+opt.def_cert_level;
910             else
911               {
912                 char *answer;
913
914                 tty_printf(_("How carefully have you verified the key you are "
915                              "about to sign actually belongs\nto the person "
916                              "named above?  If you don't know what to "
917                              "answer, enter \"0\".\n"));
918                 tty_printf("\n");
919                 tty_printf(_("   (0) I will not answer.%s\n"),
920                            opt.def_cert_level==0?" (default)":"");
921                 tty_printf(_("   (1) I have not checked at all.%s\n"),
922                            opt.def_cert_level==1?" (default)":"");
923                 tty_printf(_("   (2) I have done casual checking.%s\n"),
924                            opt.def_cert_level==2?" (default)":"");
925                 tty_printf(_("   (3) I have done very careful checking.%s\n"),
926                            opt.def_cert_level==3?" (default)":"");
927                 tty_printf("\n");
928
929                 while(class==0)
930                   {
931                     answer = cpr_get("sign_uid.class",_("Your selection? "
932                                         "(enter `?' for more information): "));
933                     if(answer[0]=='\0')
934                       class=0x10+opt.def_cert_level; /* Default */
935                     else if(ascii_strcasecmp(answer,"0")==0)
936                       class=0x10; /* Generic */
937                     else if(ascii_strcasecmp(answer,"1")==0)
938                       class=0x11; /* Persona */
939                     else if(ascii_strcasecmp(answer,"2")==0)
940                       class=0x12; /* Casual */
941                     else if(ascii_strcasecmp(answer,"3")==0)
942                       class=0x13; /* Positive */
943                     else
944                       tty_printf(_("Invalid selection.\n"));
945
946                     xfree(answer);
947                   }
948               }
949
950             if(trust)
951               trustsig_prompt(&trust_value,&trust_depth,&trust_regexp);
952           }
953
954         p=get_user_id_native(sk_keyid);
955         tty_printf(_("Are you sure that you want to sign this key with your\n"
956                      "key \"%s\" (%s)\n"),p,keystr_from_sk(sk));
957         xfree(p);
958
959         if(selfsig)
960           {
961             tty_printf("\n");
962             tty_printf(_("This will be a self-signature.\n"));
963
964             if( local )
965               {
966                 tty_printf("\n");
967                 tty_printf(
968                          _("WARNING: the signature will not be marked "
969                            "as non-exportable.\n"));
970               }
971
972             if( nonrevocable )
973               {
974                 tty_printf("\n");
975                 tty_printf(
976                          _("WARNING: the signature will not be marked "
977                            "as non-revocable.\n"));
978               }
979           }
980         else
981           {
982             if( local )
983               {
984                 tty_printf("\n");
985                 tty_printf(
986                      _("The signature will be marked as non-exportable.\n"));
987               }
988
989             if( nonrevocable )
990               {
991                 tty_printf("\n");
992                 tty_printf(
993                       _("The signature will be marked as non-revocable.\n"));
994               }
995
996             switch(class)
997               {
998               case 0x11:
999                 tty_printf("\n");
1000                 tty_printf(_("I have not checked this key at all.\n"));
1001                 break;
1002
1003               case 0x12:
1004                 tty_printf("\n");
1005                 tty_printf(_("I have checked this key casually.\n"));
1006                 break;
1007
1008               case 0x13:
1009                 tty_printf("\n");
1010                 tty_printf(_("I have checked this key very carefully.\n"));
1011                 break;
1012               }
1013           }
1014
1015         tty_printf("\n");
1016
1017         if( opt.batch && opt.answer_yes )
1018           ;
1019         else if( !cpr_get_answer_is_yes("sign_uid.okay",
1020                                         _("Really sign? (y/N) ")) )
1021             continue;
1022
1023         /* now we can sign the user ids */
1024       reloop: /* (must use this, because we are modifing the list) */
1025         primary_pk = NULL;
1026         for( node=keyblock; node; node = node->next ) {
1027             if( node->pkt->pkttype == PKT_PUBLIC_KEY )
1028                 primary_pk = node->pkt->pkt.public_key;
1029             else if( node->pkt->pkttype == PKT_USER_ID
1030                      && (node->flag & NODFLG_MARK_A) ) {
1031                 PACKET *pkt;
1032                 PKT_signature *sig;
1033                 struct sign_attrib attrib;
1034
1035                 assert( primary_pk );
1036                 memset( &attrib, 0, sizeof attrib );
1037                 attrib.non_exportable = local;
1038                 attrib.non_revocable = nonrevocable;
1039                 attrib.trust_depth = trust_depth;
1040                 attrib.trust_value = trust_value;
1041                 attrib.trust_regexp = trust_regexp;
1042                 node->flag &= ~NODFLG_MARK_A;
1043
1044                 /* we force creation of a v4 signature for local
1045                  * signatures, otherwise we would not generate the
1046                  * subpacket with v3 keys and the signature becomes
1047                  * exportable */
1048
1049                 if(selfsig)
1050                   rc = make_keysig_packet( &sig, primary_pk,
1051                                            node->pkt->pkt.user_id,
1052                                            NULL,
1053                                            sk,
1054                                            0x13, 0, force_v4?4:0, 0, 0,
1055                                            keygen_add_std_prefs, primary_pk);
1056                 else
1057                   rc = make_keysig_packet( &sig, primary_pk,
1058                                            node->pkt->pkt.user_id,
1059                                            NULL,
1060                                            sk,
1061                                            class, 0, force_v4?4:0,
1062                                            timestamp, duration,
1063                                            sign_mk_attrib, &attrib );
1064                 if( rc ) {
1065                     log_error(_("signing failed: %s\n"), g10_errstr(rc));
1066                     goto leave;
1067                 }
1068
1069                 *ret_modified = 1; /* we changed the keyblock */
1070                 update_trust = 1;
1071
1072                 pkt = xmalloc_clear( sizeof *pkt );
1073                 pkt->pkttype = PKT_SIGNATURE;
1074                 pkt->pkt.signature = sig;
1075                 insert_kbnode( node, new_kbnode(pkt), PKT_SIGNATURE );
1076                 goto reloop;
1077             }
1078         }
1079
1080         /* Delete any sigs that got promoted */
1081         for( node=keyblock; node; node = node->next )
1082           if( node->flag & NODFLG_DELSIG)
1083             delete_kbnode(node);
1084     } /* end loop over signators */
1085
1086   leave:
1087     release_sk_list( sk_list );
1088     if( sk )
1089         free_secret_key(sk);
1090     return rc;
1091 }
1092
1093
1094
1095 /****************
1096  * Change the passphrase of the primary and all secondary keys.
1097  * We use only one passphrase for all keys.
1098  */
1099 static int
1100 change_passphrase( KBNODE keyblock )
1101 {
1102     int rc = 0;
1103     int changed=0;
1104     KBNODE node;
1105     PKT_secret_key *sk;
1106     char *passphrase = NULL;
1107     int no_primary_secrets = 0;
1108     int any;
1109
1110     node = find_kbnode( keyblock, PKT_SECRET_KEY );
1111     if( !node ) {
1112         log_error("Oops; secret key not found anymore!\n");
1113         goto leave;
1114     }
1115     sk = node->pkt->pkt.secret_key;
1116
1117     for (any = 0, node=keyblock; node; node = node->next) {
1118         if (node->pkt->pkttype == PKT_SECRET_KEY 
1119             || node->pkt->pkttype == PKT_SECRET_SUBKEY) {
1120             PKT_secret_key *tmpsk = node->pkt->pkt.secret_key;
1121             if (!(tmpsk->is_protected
1122                   && (tmpsk->protect.s2k.mode == 1001 
1123                       || tmpsk->protect.s2k.mode == 1002))) {
1124                 any = 1;
1125                 break;
1126             }
1127         }
1128     }
1129     if (!any) {
1130         tty_printf (_("Key has only stub or on-card key items - "
1131                       "no passphrase to change.\n"));
1132         goto leave;
1133     }
1134         
1135     /* See how to handle this key.  */
1136     switch( is_secret_key_protected( sk ) ) {
1137       case -1:
1138         rc = G10ERR_PUBKEY_ALGO;
1139         break;
1140       case 0:
1141         tty_printf(_("This key is not protected.\n"));
1142         break;
1143       default:
1144         if( sk->protect.s2k.mode == 1001 ) {
1145             tty_printf(_("Secret parts of primary key are not available.\n"));
1146             no_primary_secrets = 1;
1147         }
1148         else if( sk->protect.s2k.mode == 1002 ) {
1149             tty_printf(_("Secret parts of primary key are stored on-card.\n"));
1150             no_primary_secrets = 1;
1151         }
1152         else {
1153             tty_printf(_("Key is protected.\n"));
1154             rc = check_secret_key( sk, 0 );
1155             if( !rc )
1156                 passphrase = get_last_passphrase();
1157         }
1158         break;
1159     }
1160
1161     /* Unprotect all subkeys (use the supplied passphrase or ask)*/
1162     for(node=keyblock; !rc && node; node = node->next ) {
1163         if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
1164             PKT_secret_key *subsk = node->pkt->pkt.secret_key;
1165             if ( !(subsk->is_protected
1166                    && (subsk->protect.s2k.mode == 1001 
1167                        || subsk->protect.s2k.mode == 1002))) {
1168                 set_next_passphrase( passphrase );
1169                 rc = check_secret_key( subsk, 0 );
1170                 if( !rc && !passphrase )
1171                     passphrase = get_last_passphrase();
1172             }
1173         }
1174     }
1175
1176     if( rc )
1177         tty_printf(_("Can't edit this key: %s\n"), g10_errstr(rc));
1178     else {
1179         DEK *dek = NULL;
1180         STRING2KEY *s2k = xmalloc_secure( sizeof *s2k );
1181         const char *errtext = NULL;
1182
1183         tty_printf(_("Enter the new passphrase for this secret key.\n\n") );
1184
1185         set_next_passphrase( NULL );
1186         for(;;) {
1187             s2k->mode = opt.s2k_mode;
1188             s2k->hash_algo = S2K_DIGEST_ALGO;
1189             dek = passphrase_to_dek( NULL, 0, opt.s2k_cipher_algo,
1190                                      s2k, 2, errtext, NULL);
1191             if( !dek ) {
1192                 errtext = N_("passphrase not correctly repeated; try again");
1193                 tty_printf ("%s.\n", _(errtext));
1194             }
1195             else if( !dek->keylen ) {
1196                 rc = 0;
1197                 tty_printf(_( "You don't want a passphrase -"
1198                             " this is probably a *bad* idea!\n\n"));
1199                 if( cpr_get_answer_is_yes("change_passwd.empty.okay",
1200                                _("Do you really want to do this? (y/N) ")))
1201                   {
1202                     changed++;
1203                     break;
1204                   }
1205             }
1206             else { /* okay */
1207                 rc = 0;
1208                 if( !no_primary_secrets ) {
1209                     sk->protect.algo = dek->algo;
1210                     sk->protect.s2k = *s2k;
1211                     rc = protect_secret_key( sk, dek );
1212                 }
1213                 for(node=keyblock; !rc && node; node = node->next ) {
1214                     if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
1215                         PKT_secret_key *subsk = node->pkt->pkt.secret_key;
1216                         if ( !(subsk->is_protected
1217                                && (subsk->protect.s2k.mode == 1001 
1218                                    || subsk->protect.s2k.mode == 1002))) {
1219                             subsk->protect.algo = dek->algo;
1220                             subsk->protect.s2k = *s2k;
1221                             rc = protect_secret_key( subsk, dek );
1222                         }
1223                     }
1224                 }
1225                 if( rc )
1226                     log_error("protect_secret_key failed: %s\n",
1227                               g10_errstr(rc) );
1228                 else
1229                     changed++;
1230                 break;
1231             }
1232         }
1233         xfree(s2k);
1234         xfree(dek);
1235     }
1236
1237   leave:
1238     xfree( passphrase );
1239     set_next_passphrase( NULL );
1240     return changed && !rc;
1241 }
1242
1243
1244 /****************
1245  * There are some keys out (due to a bug in gnupg), where the sequence
1246  * of the packets is wrong.  This function fixes that.
1247  * Returns: true if the keyblock has been fixed.
1248  *
1249  * Note:  This function does not work if there is more than one user ID.
1250  */
1251 static int
1252 fix_keyblock( KBNODE keyblock )
1253 {
1254     KBNODE node, last, subkey;
1255     int fixed=0;
1256
1257     /* locate key signatures of class 0x10..0x13 behind sub key packets */
1258     for( subkey=last=NULL, node = keyblock; node;
1259                                             last=node, node = node->next ) {
1260         switch( node->pkt->pkttype ) {
1261           case PKT_PUBLIC_SUBKEY:
1262           case PKT_SECRET_SUBKEY:
1263             if( !subkey )
1264                 subkey = last; /* actually it is the one before the subkey */
1265             break;
1266           case PKT_SIGNATURE:
1267             if( subkey ) {
1268                 PKT_signature *sig = node->pkt->pkt.signature;
1269                 if( sig->sig_class >= 0x10 && sig->sig_class <= 0x13 ) {
1270                     log_info(_(
1271                         "moving a key signature to the correct place\n"));
1272                     last->next = node->next;
1273                     node->next = subkey->next;
1274                     subkey->next = node;
1275                     node = last;
1276                     fixed=1;
1277                 }
1278             }
1279             break;
1280           default: break;
1281         }
1282     }
1283
1284     return fixed;
1285 }
1286
1287 static int
1288 parse_sign_type(const char *str,int *localsig,int *nonrevokesig,int *trustsig)
1289 {
1290   const char *p=str;
1291
1292   while(*p)
1293     {
1294       if(ascii_strncasecmp(p,"l",1)==0)
1295         {
1296           *localsig=1;
1297           p++;
1298         }
1299       else if(ascii_strncasecmp(p,"nr",2)==0)
1300         {
1301           *nonrevokesig=1;
1302           p+=2;
1303         }
1304       else if(ascii_strncasecmp(p,"t",1)==0)
1305         {
1306           *trustsig=1;
1307           p++;
1308         }
1309       else
1310         return 0;
1311     }
1312
1313   return 1;
1314 }
1315
1316 \f
1317 /****************
1318  * Menu driven key editor.  If seckey_check is true, then a secret key
1319  * that matches username will be looked for.  If it is false, not all
1320  * commands will be available.
1321  *
1322  * Note: to keep track of some selection we use node->mark MARKBIT_xxxx.
1323  */
1324
1325 /* Need an SK for this command */
1326 #define KEYEDIT_NEED_SK 1
1327 /* Cannot be viewing the SK for this command */
1328 #define KEYEDIT_NOT_SK  2
1329 /* Must be viewing the SK for this command */
1330 #define KEYEDIT_ONLY_SK 4
1331 /* Match the tail of the string */
1332 #define KEYEDIT_TAIL_MATCH 8
1333
1334 enum cmdids
1335   {
1336     cmdNONE = 0,
1337     cmdQUIT, cmdHELP, cmdFPR, cmdLIST, cmdSELUID, cmdCHECK, cmdSIGN,
1338     cmdREVSIG, cmdREVKEY, cmdREVUID, cmdDELSIG, cmdPRIMARY, cmdDEBUG,
1339     cmdSAVE, cmdADDUID, cmdADDPHOTO, cmdDELUID, cmdADDKEY, cmdDELKEY,
1340     cmdADDREVOKER, cmdTOGGLE, cmdSELKEY, cmdPASSWD, cmdTRUST, cmdPREF,
1341     cmdEXPIRE, cmdBACKSIGN, cmdENABLEKEY, cmdDISABLEKEY, cmdSHOWPREF,
1342     cmdSETPREF, cmdPREFKS, cmdINVCMD, cmdSHOWPHOTO, cmdUPDTRUST, cmdCHKTRUST,
1343     cmdADDCARDKEY, cmdKEYTOCARD, cmdBKUPTOCARD, cmdCLEAN, cmdMINIMIZE, cmdNOP
1344   };
1345
1346 static struct
1347 {
1348   const char *name;
1349   enum cmdids id;
1350   int flags;
1351   const char *desc;
1352 } cmds[] =
1353   { 
1354     { "quit"    , cmdQUIT      , 0, N_("quit this menu") },
1355     { "q"       , cmdQUIT      , 0, NULL   },
1356     { "save"    , cmdSAVE      , 0, N_("save and quit") },
1357     { "help"    , cmdHELP      , 0, N_("show this help") },
1358     { "?"       , cmdHELP      , 0, NULL   },
1359     { "fpr"     , cmdFPR       , 0, N_("show key fingerprint") },
1360     { "list"    , cmdLIST      , 0, N_("list key and user IDs") },
1361     { "l"       , cmdLIST      , 0, NULL   },
1362     { "uid"     , cmdSELUID    , 0, N_("select user ID N") },
1363     { "key"     , cmdSELKEY    , 0, N_("select subkey N") },
1364     { "check"   , cmdCHECK     , 0, N_("check signatures") },
1365     { "c"       , cmdCHECK     , 0, NULL },
1366     { "backsign", cmdBACKSIGN  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1367     { "sign"    , cmdSIGN      , KEYEDIT_NOT_SK|KEYEDIT_TAIL_MATCH,
1368       N_("sign selected user IDs [* see below for related commands]") },
1369     { "s"       , cmdSIGN      , KEYEDIT_NOT_SK, NULL },
1370     /* "lsign" and friends will never match since "sign" comes first
1371        and it is a tail match.  They are just here so they show up in
1372        the help menu. */
1373     { "lsign"   , cmdNOP       , 0, N_("sign selected user IDs locally") },
1374     { "tsign"   , cmdNOP       , 0,
1375       N_("sign selected user IDs with a trust signature") },
1376     { "nrsign"  , cmdNOP       , 0,
1377       N_("sign selected user IDs with a non-revocable signature") },
1378
1379     { "debug"   , cmdDEBUG     , 0, NULL },
1380     { "adduid"  , cmdADDUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1381       N_("add a user ID") },
1382     { "addphoto", cmdADDPHOTO  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1383       N_("add a photo ID") },
1384     { "deluid"  , cmdDELUID    , KEYEDIT_NOT_SK,
1385       N_("delete selected user IDs") },
1386     /* delphoto is really deluid in disguise */
1387     { "delphoto", cmdDELUID    , KEYEDIT_NOT_SK, NULL },
1388
1389     { "addkey"  , cmdADDKEY    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1390       N_("add a subkey") },
1391
1392 #ifdef ENABLE_CARD_SUPPORT
1393     { "addcardkey", cmdADDCARDKEY , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1394       N_("add a key to a smartcard") },
1395     { "keytocard", cmdKEYTOCARD , KEYEDIT_NEED_SK|KEYEDIT_ONLY_SK, 
1396       N_("move a key to a smartcard")},
1397     { "bkuptocard", cmdBKUPTOCARD , KEYEDIT_NEED_SK|KEYEDIT_ONLY_SK, 
1398       N_("move a backup key to a smartcard")},
1399 #endif /*ENABLE_CARD_SUPPORT*/
1400
1401     { "delkey"  , cmdDELKEY    , KEYEDIT_NOT_SK,
1402       N_("delete selected subkeys") },
1403     { "addrevoker",cmdADDREVOKER,KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1404       N_("add a revocation key") },
1405     { "delsig"  , cmdDELSIG    , KEYEDIT_NOT_SK,
1406       N_("delete signatures from the selected user IDs") },
1407     { "expire"  , cmdEXPIRE    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1408       N_("change the expiration date for the key or selected subkeys") },
1409     { "primary" , cmdPRIMARY   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1410       N_("flag the selected user ID as primary")},
1411     { "toggle"  , cmdTOGGLE    , KEYEDIT_NEED_SK,
1412       N_("toggle between the secret and public key listings") },
1413     { "t"       , cmdTOGGLE    , KEYEDIT_NEED_SK, NULL },
1414     { "pref"    , cmdPREF      , KEYEDIT_NOT_SK,
1415       N_("list preferences (expert)")},
1416     { "showpref", cmdSHOWPREF  , KEYEDIT_NOT_SK,
1417       N_("list preferences (verbose)") },
1418     { "setpref" , cmdSETPREF   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1419       N_("set preference list for the selected user IDs") },
1420     /* Alias */
1421     { "updpref" , cmdSETPREF   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1422
1423     { "keyserver",cmdPREFKS    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1424       N_("set preferred keyserver URL for the selected user IDs")},
1425     { "passwd"  , cmdPASSWD    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1426       N_("change the passphrase") },
1427     /* Alias */
1428     { "password", cmdPASSWD    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1429
1430     { "trust"   , cmdTRUST     , KEYEDIT_NOT_SK, N_("change the ownertrust") },
1431     { "revsig"  , cmdREVSIG    , KEYEDIT_NOT_SK,
1432       N_("revoke signatures on the selected user IDs") },
1433     { "revuid"  , cmdREVUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1434       N_("revoke selected user IDs") },
1435     /* Alias */
1436     { "revphoto", cmdREVUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1437
1438     { "revkey"  , cmdREVKEY    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1439       N_("revoke key or selected subkeys") },
1440     { "enable"  , cmdENABLEKEY , KEYEDIT_NOT_SK, N_("enable key") },
1441     { "disable" , cmdDISABLEKEY, KEYEDIT_NOT_SK, N_("disable key") },
1442     { "showphoto",cmdSHOWPHOTO , 0, N_("show selected photo IDs") },
1443     { "clean",    cmdCLEAN     , KEYEDIT_NOT_SK,
1444       N_("compact unusable user IDs and remove unusable signatures from key")},
1445     { "minimize", cmdMINIMIZE  , KEYEDIT_NOT_SK,
1446       N_("compact unusable user IDs and remove all signatures from key") },
1447     { NULL, cmdNONE, 0, NULL }
1448   };
1449
1450 #ifdef HAVE_LIBREADLINE
1451
1452 /* These two functions are used by readline for command completion. */
1453
1454 static char *
1455 command_generator(const char *text,int state)
1456 {
1457   static int list_index,len;
1458   const char *name;
1459
1460   /* If this is a new word to complete, initialize now.  This includes
1461      saving the length of TEXT for efficiency, and initializing the
1462      index variable to 0. */
1463   if(!state)
1464     {
1465       list_index=0;
1466       len=strlen(text);
1467     }
1468
1469   /* Return the next partial match */
1470   while((name=cmds[list_index].name))
1471     {
1472       /* Only complete commands that have help text */
1473       if(cmds[list_index++].desc && strncmp(name,text,len)==0)
1474         return strdup(name);
1475     }
1476
1477   return NULL;
1478 }
1479
1480 static char **
1481 keyedit_completion(const char *text, int start, int end)
1482 {
1483   /* If we are at the start of a line, we try and command-complete.
1484      If not, just do nothing for now. */
1485
1486   if(start==0)
1487     return rl_completion_matches(text,command_generator);
1488
1489   rl_attempted_completion_over=1;
1490
1491   return NULL;
1492 }
1493 #endif /* HAVE_LIBREADLINE */
1494
1495
1496 void
1497 keyedit_menu( const char *username, STRLIST locusr,
1498               STRLIST commands, int quiet, int seckey_check )
1499 {
1500     enum cmdids cmd = 0;
1501     int rc = 0;
1502     KBNODE keyblock = NULL;
1503     KEYDB_HANDLE kdbhd = NULL;
1504     KBNODE sec_keyblock = NULL;
1505     KEYDB_HANDLE sec_kdbhd = NULL;
1506     KBNODE cur_keyblock;
1507     char *answer = NULL;
1508     int redisplay = 1;
1509     int modified = 0;
1510     int sec_modified = 0;
1511     int toggle;
1512     int have_commands = !!commands;
1513
1514     if ( opt.command_fd != -1 )
1515         ;
1516     else if( opt.batch && !have_commands )
1517       {
1518         log_error(_("can't do this in batch mode\n"));
1519         goto leave;
1520       }
1521
1522 #ifdef HAVE_W32_SYSTEM
1523     /* Due to Windows peculiarities we need to make sure that the
1524        trustdb stale check is done before we open another file
1525        (i.e. by searching for a key).  In theory we could make sure
1526        that the files are closed after use but the open/close caches
1527        inhibits that and flushing the cache right before the stale
1528        check is not easy to implement.  Thus we take the easy way out
1529        and run the stale check as early as possible.  Note, that for
1530        non- W32 platforms it is run indirectly trough a call to
1531        get_validity ().  */
1532     check_trustdb_stale ();
1533 #endif
1534
1535     /* Get the public key */
1536     rc = get_pubkey_byname (NULL, username, &keyblock, &kdbhd, 1);
1537     if( rc )
1538         goto leave;
1539     if( fix_keyblock( keyblock ) )
1540         modified++;
1541     if( collapse_uids( &keyblock ) )
1542         modified++;
1543     reorder_keyblock(keyblock);
1544
1545     if(seckey_check)
1546       {/* see whether we have a matching secret key */
1547         PKT_public_key *pk = keyblock->pkt->pkt.public_key;
1548
1549         sec_kdbhd = keydb_new (1);
1550         {
1551             byte afp[MAX_FINGERPRINT_LEN];
1552             size_t an;
1553
1554             fingerprint_from_pk (pk, afp, &an);
1555             while (an < MAX_FINGERPRINT_LEN) 
1556                 afp[an++] = 0;
1557             rc = keydb_search_fpr (sec_kdbhd, afp);
1558         }
1559         if (!rc)
1560           {
1561             rc = keydb_get_keyblock (sec_kdbhd, &sec_keyblock);
1562             if (rc)
1563               {
1564                 log_error (_("error reading secret keyblock \"%s\": %s\n"),
1565                            username, g10_errstr(rc));
1566               }
1567             else
1568               {
1569                 merge_keys_and_selfsig( sec_keyblock );
1570                 if( fix_keyblock( sec_keyblock ) )
1571                   sec_modified++;
1572               }
1573           }
1574
1575         if (rc) {
1576             sec_keyblock = NULL;
1577             keydb_release (sec_kdbhd); sec_kdbhd = NULL;
1578             rc = 0;
1579         }
1580
1581         if( sec_keyblock && !quiet )
1582           tty_printf(_("Secret key is available.\n"));
1583     }
1584
1585     toggle = 0;
1586     cur_keyblock = keyblock;
1587     for(;;) { /* main loop */
1588         int i, arg_number, photo;
1589         const char *arg_string = "";
1590         char *p;
1591         PKT_public_key *pk=keyblock->pkt->pkt.public_key;
1592
1593         tty_printf("\n");
1594
1595         if( redisplay && !quiet )
1596           {
1597             show_key_with_all_names( cur_keyblock, 0, 1, 0, 1, 0 );
1598             tty_printf("\n");
1599             redisplay = 0;
1600           }
1601         do {
1602             xfree(answer);
1603             if( have_commands ) {
1604                 if( commands ) {
1605                     answer = xstrdup( commands->d );
1606                     commands = commands->next;
1607                 }
1608                 else if( opt.batch ) {
1609                     answer = xstrdup("quit");
1610                 }
1611                 else
1612                     have_commands = 0;
1613             }
1614             if( !have_commands )
1615               {
1616                 tty_enable_completion(keyedit_completion);
1617                 answer = cpr_get_no_help("keyedit.prompt", _("Command> "));
1618                 cpr_kill_prompt();
1619                 tty_disable_completion();
1620               }
1621             trim_spaces(answer);
1622         } while( *answer == '#' );
1623
1624         arg_number = 0; /* Yes, here is the init which egcc complains about */
1625         photo = 0; /* This too */
1626         if( !*answer )
1627             cmd = cmdLIST;
1628         else if( *answer == CONTROL_D )
1629             cmd = cmdQUIT;
1630         else if( digitp(answer ) ) {
1631             cmd = cmdSELUID;
1632             arg_number = atoi(answer);
1633         }
1634         else {
1635             if( (p=strchr(answer,' ')) ) {
1636                 *p++ = 0;
1637                 trim_spaces(answer);
1638                 trim_spaces(p);
1639                 arg_number = atoi(p);
1640                 arg_string = p;
1641             }
1642
1643             for(i=0; cmds[i].name; i++ )
1644               {
1645                 if(cmds[i].flags & KEYEDIT_TAIL_MATCH)
1646                   {
1647                     size_t l=strlen(cmds[i].name);
1648                     size_t a=strlen(answer);
1649                     if(a>=l)
1650                       {
1651                         if(ascii_strcasecmp(&answer[a-l],cmds[i].name)==0)
1652                           {
1653                             answer[a-l]='\0';
1654                             break;
1655                           }
1656                       }
1657                   }
1658                 else if( !ascii_strcasecmp( answer, cmds[i].name ) )
1659                   break;
1660               }
1661             if((cmds[i].flags & KEYEDIT_NEED_SK) && !sec_keyblock )
1662               {
1663                 tty_printf(_("Need the secret key to do this.\n"));
1664                 cmd = cmdNOP;
1665               }
1666             else if(((cmds[i].flags & KEYEDIT_NOT_SK) && sec_keyblock
1667                      && toggle)
1668                     ||((cmds[i].flags & KEYEDIT_ONLY_SK) && sec_keyblock
1669                        && !toggle))
1670               {
1671                 tty_printf(_("Please use the command \"toggle\" first.\n"));
1672                 cmd = cmdNOP;
1673               }
1674             else
1675               cmd = cmds[i].id;
1676         }
1677         switch( cmd )
1678           {
1679           case cmdHELP:
1680             for(i=0; cmds[i].name; i++ )
1681               {
1682                 if((cmds[i].flags & KEYEDIT_NEED_SK) && !sec_keyblock )
1683                   ; /* skip if we do not have the secret key */
1684                 else if( cmds[i].desc )
1685                   tty_printf("%-11s %s\n", cmds[i].name, _(cmds[i].desc) );
1686               }
1687
1688             tty_printf("\n");
1689             tty_printf(_(
1690 "* The `sign' command may be prefixed with an `l' for local "
1691 "signatures (lsign),\n"
1692 "  a `t' for trust signatures (tsign), an `nr' for non-revocable signatures\n"
1693 "  (nrsign), or any combination thereof (ltsign, tnrsign, etc.).\n"));
1694
1695             break;
1696
1697           case cmdLIST:
1698             redisplay = 1;
1699             break;
1700
1701           case cmdFPR:
1702             show_key_and_fingerprint( keyblock );
1703             break;
1704
1705           case cmdSELUID:
1706             if(strlen(arg_string)==NAMEHASH_LEN*2)
1707               redisplay=menu_select_uid_namehash(cur_keyblock,arg_string);
1708             else
1709               redisplay=menu_select_uid(cur_keyblock,arg_number);
1710             break;
1711
1712           case cmdSELKEY:
1713             if( menu_select_key( cur_keyblock, arg_number ) )
1714                 redisplay = 1;
1715             break;
1716
1717           case cmdCHECK:
1718             /* we can only do this with the public key becuase the
1719              * check functions can't cope with secret keys and it
1720              * is questionable whether this would make sense at all */
1721             check_all_keysigs( keyblock, count_selected_uids(keyblock) );
1722             break;
1723
1724           case cmdSIGN: /* sign (only the public key) */
1725             {
1726               int localsig=0,nonrevokesig=0,trustsig=0,interactive=0;
1727
1728               if( pk->is_revoked )
1729                 {
1730                   tty_printf(_("Key is revoked."));
1731
1732                   if(opt.expert)
1733                     {
1734                       tty_printf("  ");
1735                       if(!cpr_get_answer_is_yes("keyedit.sign_revoked.okay",
1736                                                 _("Are you sure you still want"
1737                                                   " to sign it? (y/N) ")))
1738                         break;
1739                     }
1740                   else
1741                     {
1742                       tty_printf(_("  Unable to sign.\n"));
1743                       break;
1744                     }
1745                 }
1746
1747               if(count_uids(keyblock) > 1 && !count_selected_uids(keyblock)
1748                  && !cpr_get_answer_is_yes("keyedit.sign_all.okay",
1749                                            _("Really sign all user IDs?"
1750                                              " (y/N) ")))
1751                 {
1752                   if(opt.interactive)
1753                     interactive=1;
1754                   else
1755                     {
1756                       tty_printf(_("Hint: Select the user IDs to sign\n"));
1757                       have_commands = 0;
1758                       break;
1759                     }
1760
1761                 }
1762               /* What sort of signing are we doing? */
1763               if(!parse_sign_type(answer,&localsig,&nonrevokesig,&trustsig))
1764                 {
1765                   tty_printf(_("Unknown signature type `%s'\n"),answer);
1766                   break;
1767                 }
1768
1769               sign_uids(keyblock, locusr, &modified,
1770                         localsig, nonrevokesig, trustsig, interactive);
1771             }
1772             break;
1773
1774           case cmdDEBUG:
1775             dump_kbnode( cur_keyblock );
1776             break;
1777
1778           case cmdTOGGLE:
1779             toggle = !toggle;
1780             cur_keyblock = toggle? sec_keyblock : keyblock;
1781             redisplay = 1;
1782             break;
1783
1784           case cmdADDPHOTO:
1785             if (RFC2440 || RFC1991 || PGP2)
1786               {
1787                 tty_printf(
1788                    _("This command is not allowed while in %s mode.\n"),
1789                    RFC2440?"OpenPGP":PGP2?"PGP2":"RFC-1991");
1790                 break;
1791               }
1792             photo=1;
1793             /* fall through */
1794
1795           case cmdADDUID:
1796             if( menu_adduid( keyblock, sec_keyblock, photo, arg_string ) )
1797               {
1798                 update_trust = 1;
1799                 redisplay = 1;
1800                 sec_modified = modified = 1;
1801                 merge_keys_and_selfsig( sec_keyblock );
1802                 merge_keys_and_selfsig( keyblock );
1803               }
1804             break;
1805
1806           case cmdDELUID: {
1807                 int n1;
1808
1809                 if( !(n1=count_selected_uids(keyblock)) )
1810                     tty_printf(_("You must select at least one user ID.\n"));
1811                 else if( real_uids_left(keyblock) < 1 )
1812                     tty_printf(_("You can't delete the last user ID!\n"));
1813                 else if( cpr_get_answer_is_yes("keyedit.remove.uid.okay",
1814                 n1 > 1? _("Really remove all selected user IDs? (y/N) ")
1815                             : _("Really remove this user ID? (y/N) ")
1816                        ) ) {
1817                     menu_deluid( keyblock, sec_keyblock );
1818                     redisplay = 1;
1819                     modified = 1;
1820                     if( sec_keyblock )
1821                        sec_modified = 1;
1822                 }
1823             }
1824             break;
1825
1826           case cmdDELSIG: {
1827                 int n1;
1828
1829                 if( !(n1=count_selected_uids(keyblock)) )
1830                     tty_printf(_("You must select at least one user ID.\n"));
1831                 else if( menu_delsig( keyblock ) ) {
1832                     /* no redisplay here, because it may scroll away some
1833                      * status output of delsig */
1834                     modified = 1;
1835                 }
1836             }
1837             break;
1838
1839           case cmdADDKEY:
1840             if( generate_subkeypair( keyblock, sec_keyblock ) ) {
1841                 redisplay = 1;
1842                 sec_modified = modified = 1;
1843                 merge_keys_and_selfsig( sec_keyblock );
1844                 merge_keys_and_selfsig( keyblock );
1845             }
1846             break;
1847
1848 #ifdef ENABLE_CARD_SUPPORT
1849           case cmdADDCARDKEY:
1850             if (card_generate_subkey (keyblock, sec_keyblock)) {
1851                 redisplay = 1;
1852                 sec_modified = modified = 1;
1853                 merge_keys_and_selfsig( sec_keyblock );
1854                 merge_keys_and_selfsig( keyblock );
1855             }
1856             break;
1857
1858         case cmdKEYTOCARD:
1859           {
1860             KBNODE node=NULL;
1861             switch ( count_selected_keys (sec_keyblock) )
1862               {
1863               case 0:
1864                 if (cpr_get_answer_is_yes("keyedit.keytocard.use_primary",
1865                                      _("Really move the primary key? (y/N) ")))
1866                   node = sec_keyblock;
1867                 break;
1868               case 1:
1869                 for (node = sec_keyblock; node; node = node->next )
1870                   {
1871                     if (node->pkt->pkttype == PKT_SECRET_SUBKEY 
1872                         && node->flag & NODFLG_SELKEY)
1873                       break;
1874                   }
1875                 break;
1876               default:
1877                 tty_printf(_("You must select exactly one key.\n"));
1878                 break;
1879               }
1880             if (node)
1881               {
1882                 PKT_public_key *xxpk = find_pk_from_sknode (keyblock, node);
1883                 if (card_store_subkey (node, xxpk?xxpk->pubkey_usage:0))
1884                   {
1885                     redisplay = 1;
1886                     sec_modified = 1;
1887                   }
1888               }
1889           }
1890           break;
1891
1892         case cmdBKUPTOCARD:
1893           {
1894             /* Ask for a filename, check whether this is really a
1895                backup key as generated by the card generation, parse
1896                that key and store it on card. */
1897             KBNODE node;
1898             const char *fname;
1899             PACKET *pkt;
1900             IOBUF a;
1901
1902             fname = arg_string;
1903             if (!*fname)
1904               {
1905                 tty_printf (_("Command expects a filename argument\n"));
1906                 break;
1907               }
1908
1909             /* Open that file.  */
1910             a = iobuf_open (fname);
1911             if (a && is_secured_file (iobuf_get_fd (a)))
1912               {
1913                 iobuf_close (a);
1914                 a = NULL;
1915                 errno = EPERM;
1916               }
1917             if (!a)
1918               {
1919                 tty_printf (_("Can't open `%s': %s\n"),
1920                             fname, strerror(errno));
1921                 break;
1922               }
1923             
1924             /* Parse and check that file.  */
1925             pkt = xmalloc (sizeof *pkt);
1926             init_packet (pkt);
1927             rc = parse_packet (a, pkt);
1928             iobuf_close (a);
1929             iobuf_ioctl (NULL, 2, 0, (char*)fname); /* (invalidate cache).  */
1930             if (!rc 
1931                 && pkt->pkttype != PKT_SECRET_KEY 
1932                 && pkt->pkttype != PKT_SECRET_SUBKEY)
1933               rc = G10ERR_NO_SECKEY;
1934             if (rc)
1935               {
1936                 tty_printf(_("Error reading backup key from `%s': %s\n"),
1937                            fname, g10_errstr (rc));
1938                 free_packet (pkt);
1939                 xfree (pkt);
1940                 break;
1941               }
1942             node = new_kbnode (pkt);
1943
1944             /* Store it.  */
1945             if (card_store_subkey (node, 0))
1946               {
1947                 redisplay = 1;
1948                 sec_modified = 1;
1949               }
1950             release_kbnode (node);
1951           }
1952           break;
1953
1954 #endif /* ENABLE_CARD_SUPPORT */
1955
1956           case cmdDELKEY: {
1957                 int n1;
1958
1959                 if( !(n1=count_selected_keys( keyblock )) )
1960                     tty_printf(_("You must select at least one key.\n"));
1961                 else if( !cpr_get_answer_is_yes( "keyedit.remove.subkey.okay",
1962                        n1 > 1?
1963                    _("Do you really want to delete the selected keys? (y/N) "):
1964                         _("Do you really want to delete this key? (y/N) ")
1965                        ))
1966                     ;
1967                 else {
1968                     menu_delkey( keyblock, sec_keyblock );
1969                     redisplay = 1;
1970                     modified = 1;
1971                     if( sec_keyblock )
1972                        sec_modified = 1;
1973                 }
1974             }
1975             break;
1976
1977           case cmdADDREVOKER:
1978             {
1979               int sensitive=0;
1980
1981               if(ascii_strcasecmp(arg_string,"sensitive")==0)
1982                 sensitive=1;
1983               if( menu_addrevoker( keyblock, sec_keyblock, sensitive ) ) {
1984                 redisplay = 1;
1985                 sec_modified = modified = 1;
1986                 merge_keys_and_selfsig( sec_keyblock );
1987                 merge_keys_and_selfsig( keyblock );
1988               }
1989             }
1990             break;
1991
1992           case cmdREVUID: {
1993                 int n1;
1994
1995                 if( !(n1=count_selected_uids(keyblock)) )
1996                     tty_printf(_("You must select at least one user ID.\n"));
1997                 else if( cpr_get_answer_is_yes(
1998                             "keyedit.revoke.uid.okay",
1999                        n1 > 1? _("Really revoke all selected user IDs? (y/N) ")
2000                              : _("Really revoke this user ID? (y/N) ")
2001                        ) ) {
2002                   if(menu_revuid(keyblock,sec_keyblock))
2003                     {
2004                       modified=1;
2005                       redisplay=1;
2006                     }
2007                 }
2008             }
2009             break;
2010
2011           case cmdREVKEY:
2012             {
2013               int n1;
2014
2015               if( !(n1=count_selected_keys( keyblock )) )
2016                 {
2017                   if(cpr_get_answer_is_yes("keyedit.revoke.subkey.okay",
2018                                            _("Do you really want to revoke"
2019                                              " the entire key? (y/N) ")))
2020                     {
2021                       if(menu_revkey(keyblock,sec_keyblock))
2022                         modified=1;
2023
2024                       redisplay=1;
2025                     }
2026                 }
2027               else if(cpr_get_answer_is_yes("keyedit.revoke.subkey.okay",
2028                                             n1 > 1?
2029                                             _("Do you really want to revoke"
2030                                               " the selected subkeys? (y/N) "):
2031                                             _("Do you really want to revoke"
2032                                               " this subkey? (y/N) ")))
2033                 {
2034                   if( menu_revsubkey( keyblock, sec_keyblock ) )
2035                     modified = 1;
2036
2037                   redisplay = 1;
2038                 }
2039
2040               if(modified)
2041                 merge_keys_and_selfsig( keyblock );
2042             }
2043             break;
2044
2045           case cmdEXPIRE:
2046             if( menu_expire( keyblock, sec_keyblock ) )
2047               {
2048                 merge_keys_and_selfsig( sec_keyblock );
2049                 merge_keys_and_selfsig( keyblock );
2050                 sec_modified = 1;
2051                 modified = 1;
2052                 redisplay = 1;
2053               }
2054             break;
2055
2056           case cmdBACKSIGN:
2057             if(menu_backsign(keyblock,sec_keyblock))
2058               {
2059                 sec_modified = 1;
2060                 modified = 1;
2061                 redisplay = 1;
2062               }
2063             break;
2064
2065           case cmdPRIMARY:
2066             if( menu_set_primary_uid ( keyblock, sec_keyblock ) ) {
2067                 merge_keys_and_selfsig( keyblock );
2068                 modified = 1;
2069                 redisplay = 1;
2070             }
2071             break;
2072
2073           case cmdPASSWD:
2074             if( change_passphrase( sec_keyblock ) )
2075                 sec_modified = 1;
2076             break;
2077
2078           case cmdTRUST:
2079             if(opt.trust_model==TM_EXTERNAL)
2080               {
2081                 tty_printf(_("Owner trust may not be set while "
2082                              "using an user provided trust database\n"));
2083                 break;
2084               }
2085
2086             show_key_with_all_names( keyblock, 0, 0, 0, 1, 0 );
2087             tty_printf("\n");
2088             if( edit_ownertrust( find_kbnode( keyblock,
2089                                  PKT_PUBLIC_KEY )->pkt->pkt.public_key, 1 ) ) {
2090                 redisplay = 1;
2091                 /* No real need to set update_trust here as
2092                    edit_ownertrust() calls revalidation_mark()
2093                    anyway. */
2094                 update_trust=1;
2095             }
2096             break;
2097
2098           case cmdPREF:
2099             {
2100               int count=count_selected_uids(keyblock);
2101               assert(keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
2102               show_names(keyblock,keyblock->pkt->pkt.public_key,
2103                          count?NODFLG_SELUID:0,1);
2104             }
2105             break;
2106
2107           case cmdSHOWPREF:
2108             {
2109               int count=count_selected_uids(keyblock);
2110               assert(keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
2111               show_names(keyblock,keyblock->pkt->pkt.public_key,
2112                          count?NODFLG_SELUID:0,2);
2113             }
2114             break;
2115
2116           case cmdSETPREF:
2117             {
2118               PKT_user_id *tempuid;
2119
2120               keygen_set_std_prefs(!*arg_string?"default" : arg_string, 0);
2121
2122               tempuid=keygen_get_std_prefs();
2123               tty_printf(_("Set preference list to:\n"));
2124               show_prefs(tempuid,NULL,1);
2125               free_user_id(tempuid);
2126
2127               if(cpr_get_answer_is_yes("keyedit.setpref.okay",
2128                                        count_selected_uids (keyblock)?
2129                                        _("Really update the preferences"
2130                                          " for the selected user IDs? (y/N) "):
2131                                        _("Really update the preferences? (y/N) ")))
2132                 {
2133                   if ( menu_set_preferences (keyblock, sec_keyblock) )
2134                     {
2135                       merge_keys_and_selfsig (keyblock);
2136                       modified = 1;
2137                       redisplay = 1;
2138                     }
2139                 }
2140             }
2141             break;
2142
2143           case cmdPREFKS:
2144             if( menu_set_keyserver_url ( *arg_string?arg_string:NULL,
2145                                          keyblock, sec_keyblock ) )
2146               {
2147                 merge_keys_and_selfsig( keyblock );
2148                 modified = 1;
2149                 redisplay = 1;
2150               }
2151             break;
2152
2153           case cmdNOP:
2154             break;
2155
2156           case cmdREVSIG:
2157             if( menu_revsig( keyblock ) ) {
2158                 redisplay = 1;
2159                 modified = 1;
2160             }
2161             break;
2162
2163           case cmdENABLEKEY:
2164           case cmdDISABLEKEY:
2165             if( enable_disable_key( keyblock, cmd == cmdDISABLEKEY ) ) {
2166                 redisplay = 1;
2167                 modified = 1;
2168             }
2169             break;
2170
2171           case cmdSHOWPHOTO:
2172             menu_showphoto(keyblock);
2173             break;
2174
2175           case cmdCLEAN:
2176             redisplay=modified=menu_clean(keyblock,0);
2177             break;
2178
2179           case cmdMINIMIZE:
2180             redisplay=modified=menu_clean(keyblock,1);
2181             break;
2182
2183           case cmdQUIT:
2184             if( have_commands )
2185                 goto leave;
2186             if( !modified && !sec_modified )
2187                 goto leave;
2188             if( !cpr_get_answer_is_yes("keyedit.save.okay",
2189                                         _("Save changes? (y/N) ")) ) {
2190                 if( cpr_enabled()
2191                     || cpr_get_answer_is_yes("keyedit.cancel.okay",
2192                                              _("Quit without saving? (y/N) ")))
2193                     goto leave;
2194                 break;
2195             }
2196             /* fall thru */
2197           case cmdSAVE:
2198             if( modified || sec_modified  ) {
2199                 if( modified ) {
2200                     rc = keydb_update_keyblock (kdbhd, keyblock);
2201                     if( rc ) {
2202                         log_error(_("update failed: %s\n"), g10_errstr(rc) );
2203                         break;
2204                     }
2205                 }
2206                 if( sec_modified ) {
2207                     rc = keydb_update_keyblock (sec_kdbhd, sec_keyblock );
2208                     if( rc ) {
2209                         log_error( _("update secret failed: %s\n"),
2210                                    g10_errstr(rc) );
2211                         break;
2212                     }
2213                 }
2214             }
2215             else
2216                 tty_printf(_("Key not changed so no update needed.\n"));
2217
2218             if( update_trust )
2219               {
2220                 revalidation_mark ();
2221                 update_trust=0;
2222               }
2223             goto leave;
2224
2225           case cmdINVCMD:
2226           default:
2227             tty_printf("\n");
2228             tty_printf(_("Invalid command  (try \"help\")\n"));
2229             break;
2230         }
2231     } /* end main loop */
2232
2233   leave:
2234     release_kbnode( keyblock );
2235     release_kbnode( sec_keyblock );
2236     keydb_release (kdbhd);
2237     xfree(answer);
2238 }
2239
2240
2241 \f
2242 /****************
2243  * show preferences of a public keyblock.
2244  */
2245 static void
2246 show_prefs (PKT_user_id *uid, PKT_signature *selfsig, int verbose)
2247 {
2248     const prefitem_t fake={0,0};
2249     const prefitem_t *prefs;
2250     int i;
2251
2252     if( !uid )
2253         return;
2254
2255     if( uid->prefs )
2256         prefs=uid->prefs;
2257     else if(verbose)
2258         prefs=&fake;
2259     else
2260       return;
2261
2262     if (verbose) {
2263         int any, des_seen=0, sha1_seen=0, uncomp_seen=0;
2264
2265         tty_printf ("     ");
2266         tty_printf (_("Cipher: "));
2267         for(i=any=0; prefs[i].type; i++ ) {
2268             if( prefs[i].type == PREFTYPE_SYM ) {
2269                 const char *s = cipher_algo_to_string (prefs[i].value);
2270                 
2271                 if (any)
2272                     tty_printf (", ");
2273                 any = 1;
2274                 /* We don't want to display strings for experimental algos */
2275                 if (s && prefs[i].value < 100 )
2276                     tty_printf ("%s", s );
2277                 else
2278                     tty_printf ("[%d]", prefs[i].value);
2279                 if (prefs[i].value == CIPHER_ALGO_3DES )
2280                     des_seen = 1;
2281             }    
2282         }
2283         if (!des_seen) {
2284             if (any)
2285                 tty_printf (", ");
2286             tty_printf ("%s",cipher_algo_to_string(CIPHER_ALGO_3DES));
2287         }
2288         tty_printf ("\n     ");
2289         tty_printf (_("Digest: "));
2290         for(i=any=0; prefs[i].type; i++ ) {
2291             if( prefs[i].type == PREFTYPE_HASH ) {
2292                 const char *s = digest_algo_to_string (prefs[i].value);
2293                 
2294                 if (any)
2295                     tty_printf (", ");
2296                 any = 1;
2297                 /* We don't want to display strings for experimental algos */
2298                 if (s && prefs[i].value < 100 )
2299                     tty_printf ("%s", s );
2300                 else
2301                     tty_printf ("[%d]", prefs[i].value);
2302                 if (prefs[i].value == DIGEST_ALGO_SHA1 )
2303                     sha1_seen = 1;
2304             }
2305         }
2306         if (!sha1_seen) {
2307             if (any)
2308                 tty_printf (", ");
2309             tty_printf ("%s",digest_algo_to_string(DIGEST_ALGO_SHA1));
2310         }
2311         tty_printf ("\n     ");
2312         tty_printf (_("Compression: "));
2313         for(i=any=0; prefs[i].type; i++ ) {
2314             if( prefs[i].type == PREFTYPE_ZIP ) {
2315                 const char *s=compress_algo_to_string(prefs[i].value);
2316                 
2317                 if (any)
2318                     tty_printf (", ");
2319                 any = 1;
2320                 /* We don't want to display strings for experimental algos */
2321                 if (s && prefs[i].value < 100 )
2322                     tty_printf ("%s", s );
2323                 else
2324                     tty_printf ("[%d]", prefs[i].value);
2325                 if (prefs[i].value == COMPRESS_ALGO_NONE )
2326                     uncomp_seen = 1;
2327             }
2328         }
2329         if (!uncomp_seen) {
2330             if (any)
2331                 tty_printf (", ");
2332             else {
2333               tty_printf ("%s",compress_algo_to_string(COMPRESS_ALGO_ZIP));
2334               tty_printf (", ");
2335             }
2336             tty_printf ("%s",compress_algo_to_string(COMPRESS_ALGO_NONE));
2337         }
2338         if(uid->flags.mdc || !uid->flags.ks_modify)
2339           {
2340             tty_printf ("\n     ");
2341             tty_printf (_("Features: "));
2342             any=0;
2343             if(uid->flags.mdc)
2344               {
2345                 tty_printf ("MDC");
2346                 any=1;
2347               }
2348             if(!uid->flags.ks_modify)
2349               {
2350                 if(any)
2351                   tty_printf (", ");
2352                 tty_printf (_("Keyserver no-modify"));
2353               }
2354           }
2355         tty_printf("\n");
2356
2357         if(selfsig)
2358           {
2359             const byte *pref_ks;
2360             size_t pref_ks_len;
2361
2362             pref_ks=parse_sig_subpkt(selfsig->hashed,
2363                                      SIGSUBPKT_PREF_KS,&pref_ks_len);
2364             if(pref_ks && pref_ks_len)
2365               {
2366                 tty_printf ("     ");
2367                 tty_printf(_("Preferred keyserver: "));
2368                 tty_print_utf8_string(pref_ks,pref_ks_len);
2369                 tty_printf("\n");
2370               }
2371           }
2372     }
2373     else {
2374         tty_printf("    ");
2375         for(i=0; prefs[i].type; i++ ) {
2376             tty_printf( " %c%d", prefs[i].type == PREFTYPE_SYM   ? 'S' :
2377                                  prefs[i].type == PREFTYPE_HASH  ? 'H' :
2378                                  prefs[i].type == PREFTYPE_ZIP ? 'Z':'?',
2379                                  prefs[i].value);
2380         }
2381         if (uid->flags.mdc)
2382             tty_printf (" [mdc]");
2383         if (!uid->flags.ks_modify)
2384             tty_printf (" [no-ks-modify]");
2385         tty_printf("\n");
2386     }
2387 }
2388
2389 /* This is the version of show_key_with_all_names used when
2390    opt.with_colons is used.  It prints all available data in a easy to
2391    parse format and does not translate utf8 */
2392 static void
2393 show_key_with_all_names_colon (KBNODE keyblock)
2394 {
2395   KBNODE node;
2396   int i, j, ulti_hack=0;
2397   byte pk_version=0;
2398   PKT_public_key *primary=NULL;
2399
2400   /* the keys */
2401   for ( node = keyblock; node; node = node->next )
2402     {
2403       if (node->pkt->pkttype == PKT_PUBLIC_KEY
2404           || (node->pkt->pkttype == PKT_PUBLIC_SUBKEY) )
2405         {
2406           PKT_public_key *pk = node->pkt->pkt.public_key;
2407           u32 keyid[2];
2408
2409           if (node->pkt->pkttype == PKT_PUBLIC_KEY)
2410             {
2411               pk_version = pk->version;
2412               primary=pk;
2413             }
2414
2415           keyid_from_pk (pk, keyid);
2416
2417           fputs (node->pkt->pkttype == PKT_PUBLIC_KEY?"pub:":"sub:", stdout);
2418           if (!pk->is_valid)
2419             putchar ('i');
2420           else if (pk->is_revoked)
2421             putchar ('r');
2422           else if (pk->has_expired)
2423             putchar ('e');
2424           else if (!(opt.fast_list_mode || opt.no_expensive_trust_checks ))
2425             {
2426               int trust = get_validity_info (pk, NULL);
2427               if(trust=='u')
2428                 ulti_hack=1;
2429               putchar (trust);
2430             }
2431
2432           printf (":%u:%d:%08lX%08lX:%lu:%lu::",
2433                   nbits_from_pk (pk),
2434                   pk->pubkey_algo,
2435                   (ulong)keyid[0], (ulong)keyid[1],
2436                   (ulong)pk->timestamp,
2437                   (ulong)pk->expiredate );
2438           if (node->pkt->pkttype==PKT_PUBLIC_KEY
2439               && !(opt.fast_list_mode || opt.no_expensive_trust_checks ))
2440             putchar(get_ownertrust_info (pk));
2441           putchar(':');
2442           putchar('\n');
2443           
2444           print_fingerprint (pk, NULL, 0);
2445           print_revokers(pk);
2446         }
2447     }
2448   
2449     /* the user ids */
2450     i = 0;
2451     for (node = keyblock; node; node = node->next) 
2452       {
2453         if ( node->pkt->pkttype == PKT_USER_ID )
2454           {
2455             PKT_user_id *uid = node->pkt->pkt.user_id;
2456
2457             ++i;
2458
2459             if(uid->attrib_data)
2460               printf("uat:");
2461             else
2462               printf("uid:");
2463
2464             if ( uid->is_revoked )
2465               printf("r::::::::");
2466             else if ( uid->is_expired )
2467               printf("e::::::::");
2468             else if ( opt.fast_list_mode || opt.no_expensive_trust_checks )
2469               printf("::::::::");
2470             else
2471               {
2472                 int uid_validity;
2473
2474                 if( primary && !ulti_hack )
2475                   uid_validity = get_validity_info( primary, uid );
2476                 else
2477                   uid_validity = 'u';
2478                 printf("%c::::::::",uid_validity);
2479               }
2480
2481             if(uid->attrib_data)
2482               printf ("%u %lu",uid->numattribs,uid->attrib_len);
2483             else
2484               print_string (stdout, uid->name, uid->len, ':');
2485
2486             putchar (':');
2487             /* signature class */
2488             putchar (':');
2489             /* capabilities */
2490             putchar (':');
2491             /* preferences */
2492             if (pk_version>3 || uid->selfsigversion>3)
2493               {
2494                 const prefitem_t *prefs = uid->prefs;
2495                 
2496                 for (j=0; prefs && prefs[j].type; j++)
2497                   {
2498                     if (j)
2499                       putchar (' ');
2500                     printf ("%c%d", prefs[j].type == PREFTYPE_SYM   ? 'S' :
2501                             prefs[j].type == PREFTYPE_HASH  ? 'H' :
2502                             prefs[j].type == PREFTYPE_ZIP ? 'Z':'?',
2503                             prefs[j].value);
2504                   } 
2505                 if (uid->flags.mdc)
2506                   printf (",mdc");
2507                 if (!uid->flags.ks_modify)
2508                   printf (",no-ks-modify");
2509               } 
2510             putchar (':');
2511             /* flags */
2512             printf ("%d,", i);
2513             if (uid->is_primary)
2514               putchar ('p');
2515             if (uid->is_revoked)
2516               putchar ('r');
2517             if (uid->is_expired)
2518               putchar ('e');
2519             if ((node->flag & NODFLG_SELUID))
2520               putchar ('s');
2521             if ((node->flag & NODFLG_MARK_A))
2522               putchar ('m');
2523             putchar (':');
2524             putchar('\n');
2525           }
2526       }
2527 }
2528
2529 static void
2530 show_names(KBNODE keyblock,PKT_public_key *pk,unsigned int flag,int with_prefs)
2531 {
2532   KBNODE node;
2533   int i=0;
2534
2535   for( node = keyblock; node; node = node->next )
2536     {
2537       if( node->pkt->pkttype == PKT_USER_ID
2538           && !is_deleted_kbnode(node))
2539         {
2540           PKT_user_id *uid = node->pkt->pkt.user_id;
2541           ++i;
2542           if(!flag || (flag && (node->flag & flag)))
2543             {
2544               if(!(flag&NODFLG_MARK_A) && pk)
2545                 tty_printf("%s ",uid_trust_string_fixed(pk,uid));
2546
2547               if( flag & NODFLG_MARK_A )
2548                 tty_printf("     ");
2549               else if( node->flag & NODFLG_SELUID )
2550                 tty_printf("(%d)* ", i);
2551               else if( uid->is_primary )
2552                 tty_printf("(%d). ", i);
2553               else
2554                 tty_printf("(%d)  ", i);
2555               tty_print_utf8_string( uid->name, uid->len );
2556               tty_printf("\n");
2557               if(with_prefs && pk)
2558                 {
2559                   if(pk->version>3 || uid->selfsigversion>3)
2560                     {
2561                       PKT_signature *selfsig=NULL;
2562                       KBNODE signode;
2563
2564                       for(signode=node->next;
2565                           signode && signode->pkt->pkttype==PKT_SIGNATURE;
2566                           signode=signode->next)
2567                         {
2568                           if(signode->pkt->pkt.signature->
2569                              flags.chosen_selfsig)
2570                             {
2571                               selfsig=signode->pkt->pkt.signature;
2572                               break;
2573                             }
2574                         }
2575
2576                       show_prefs (uid, selfsig, with_prefs == 2);
2577                     }
2578                   else
2579                     tty_printf(_("There are no preferences on a"
2580                                  " PGP 2.x-style user ID.\n"));
2581                 }
2582             }
2583         }
2584     }
2585 }
2586
2587 /****************
2588  * Display the key a the user ids, if only_marked is true, do only
2589  * so for user ids with mark A flag set and dont display the index number
2590  */
2591 static void
2592 show_key_with_all_names( KBNODE keyblock, int only_marked, int with_revoker,
2593                          int with_fpr, int with_subkeys, int with_prefs )
2594 {
2595     KBNODE node;
2596     int i;
2597     int do_warn = 0;
2598     byte pk_version=0;
2599     PKT_public_key *primary=NULL;
2600
2601     if (opt.with_colons)
2602       {
2603         show_key_with_all_names_colon (keyblock);
2604         return;
2605       }
2606
2607     /* the keys */
2608     for( node = keyblock; node; node = node->next ) {
2609         if( node->pkt->pkttype == PKT_PUBLIC_KEY
2610             || (with_subkeys && node->pkt->pkttype == PKT_PUBLIC_SUBKEY
2611                 && !is_deleted_kbnode(node)) ) {
2612             PKT_public_key *pk = node->pkt->pkt.public_key;
2613             const char *otrust="err",*trust="err";
2614
2615             if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
2616                 /* do it here, so that debug messages don't clutter the
2617                  * output */
2618                 static int did_warn = 0;
2619
2620                 trust = get_validity_string (pk, NULL);
2621                 otrust = get_ownertrust_string (pk);
2622
2623                 /* Show a warning once */
2624                 if (!did_warn
2625                     && (get_validity (pk, NULL) & TRUST_FLAG_PENDING_CHECK)) {
2626                     did_warn = 1;
2627                     do_warn = 1;
2628                 }
2629
2630                 pk_version=pk->version;
2631                 primary=pk;
2632             }
2633
2634             if(pk->is_revoked)
2635               {
2636                 char *user=get_user_id_string_native(pk->revoked.keyid);
2637                 const char *algo=pubkey_algo_to_string(pk->revoked.algo);
2638                 tty_printf(_("This key was revoked on %s by %s key %s\n"),
2639                            revokestr_from_pk(pk),algo?algo:"?",user);
2640                 xfree(user);
2641               }
2642
2643             if(with_revoker)
2644               {
2645                 if( !pk->revkey && pk->numrevkeys )
2646                   BUG();
2647                 else
2648                   for(i=0;i<pk->numrevkeys;i++)
2649                     {
2650                       u32 r_keyid[2];
2651                       char *user;
2652                       const char *algo=
2653                         pubkey_algo_to_string(pk->revkey[i].algid);
2654
2655                       keyid_from_fingerprint(pk->revkey[i].fpr,
2656                                              MAX_FINGERPRINT_LEN,r_keyid);
2657
2658                       user=get_user_id_string_native(r_keyid);
2659                       tty_printf(_("This key may be revoked by %s key %s"),
2660                                  algo?algo:"?",user);
2661
2662                       if(pk->revkey[i].class&0x40)
2663                         {
2664                           tty_printf(" ");
2665                           tty_printf(_("(sensitive)"));
2666                         }
2667
2668                       tty_printf ("\n");
2669                       xfree(user);
2670                     }
2671               }
2672
2673             keyid_from_pk(pk,NULL);
2674             tty_printf("%s%c %4u%c/%s  ",
2675                        node->pkt->pkttype == PKT_PUBLIC_KEY? "pub":"sub",
2676                        (node->flag & NODFLG_SELKEY)? '*':' ',
2677                        nbits_from_pk( pk ),
2678                        pubkey_letter( pk->pubkey_algo ),
2679                        keystr(pk->keyid));
2680
2681             tty_printf(_("created: %s"),datestr_from_pk(pk));
2682             tty_printf("  ");
2683             if(pk->is_revoked)
2684               tty_printf(_("revoked: %s"),revokestr_from_pk(pk));
2685             else if(pk->has_expired)
2686               tty_printf(_("expired: %s"),expirestr_from_pk(pk));
2687             else
2688               tty_printf(_("expires: %s"),expirestr_from_pk(pk));
2689             tty_printf("  ");
2690             tty_printf(_("usage: %s"),usagestr_from_pk(pk));
2691             tty_printf("\n");
2692
2693             if( node->pkt->pkttype == PKT_PUBLIC_KEY )
2694               {
2695                 if(opt.trust_model!=TM_ALWAYS)
2696                   {
2697                     tty_printf("%*s", (int)keystrlen()+13,"");
2698                     /* Ownertrust is only meaningful for the PGP or
2699                        classic trust models */
2700                     if(opt.trust_model==TM_PGP || opt.trust_model==TM_CLASSIC)
2701                       {
2702                         int width=14-strlen(otrust);
2703                         if(width<=0)
2704                           width=1;
2705                         tty_printf(_("trust: %s"), otrust);
2706                         tty_printf("%*s",width,"");
2707                       }
2708                     
2709                     tty_printf(_("validity: %s"), trust );
2710                     tty_printf("\n");
2711                   }
2712                 if( node->pkt->pkttype == PKT_PUBLIC_KEY
2713                     && (get_ownertrust (pk)&TRUST_FLAG_DISABLED))
2714                   {
2715                     tty_printf("*** ");
2716                     tty_printf(_("This key has been disabled"));
2717                     tty_printf("\n");
2718                   }
2719               }
2720
2721             if( node->pkt->pkttype == PKT_PUBLIC_KEY && with_fpr )
2722               {
2723                 print_fingerprint ( pk, NULL, 2 );
2724                 tty_printf("\n");
2725               }
2726         }
2727         else if( node->pkt->pkttype == PKT_SECRET_KEY
2728             || (with_subkeys && node->pkt->pkttype == PKT_SECRET_SUBKEY) )
2729           {
2730             PKT_secret_key *sk = node->pkt->pkt.secret_key;
2731             tty_printf("%s%c %4u%c/%s  ",
2732                        node->pkt->pkttype == PKT_SECRET_KEY? "sec":"ssb",
2733                        (node->flag & NODFLG_SELKEY)? '*':' ',
2734                        nbits_from_sk( sk ),
2735                        pubkey_letter( sk->pubkey_algo ),
2736                        keystr_from_sk(sk));
2737             tty_printf(_("created: %s"),datestr_from_sk(sk));
2738             tty_printf("  ");
2739             tty_printf(_("expires: %s"),expirestr_from_sk(sk));
2740             tty_printf("\n");
2741             if (sk->is_protected && sk->protect.s2k.mode == 1002)
2742               {
2743                 tty_printf("                     ");
2744                 tty_printf(_("card-no: ")); 
2745                 if (sk->protect.ivlen == 16
2746                     && !memcmp (sk->protect.iv, "\xD2\x76\x00\x01\x24\x01", 6))
2747                   { /* This is an OpenPGP card. */
2748                     for (i=8; i < 14; i++)
2749                       {
2750                         if (i == 10)
2751                           tty_printf (" ");
2752                         tty_printf ("%02X", sk->protect.iv[i]);
2753                       }
2754                   }
2755                 else
2756                   { /* Something is wrong: Print all. */
2757                     for (i=0; i < sk->protect.ivlen; i++)
2758                       tty_printf ("%02X", sk->protect.iv[i]);
2759                   }
2760                 tty_printf ("\n");
2761               }
2762           }
2763     }
2764
2765     show_names(keyblock,primary,only_marked?NODFLG_MARK_A:0,with_prefs);
2766
2767     if (do_warn)
2768         tty_printf (_("Please note that the shown key validity"
2769                       " is not necessarily correct\n"
2770                       "unless you restart the program.\n")); 
2771 }
2772
2773
2774 /* Display basic key information.  This function is suitable to show
2775    information on the key without any dependencies on the trustdb or
2776    any other internal GnuPG stuff.  KEYBLOCK may either be a public or
2777    a secret key.*/
2778 void
2779 show_basic_key_info ( KBNODE keyblock )
2780 {
2781   KBNODE node;
2782   int i;
2783
2784   /* The primary key */
2785   for (node = keyblock; node; node = node->next)
2786     {
2787       if (node->pkt->pkttype == PKT_PUBLIC_KEY)
2788         {
2789           PKT_public_key *pk = node->pkt->pkt.public_key;
2790           
2791           /* Note, we use the same format string as in other show
2792              functions to make the translation job easier. */
2793           tty_printf ("%s  %4u%c/%s  ",
2794                       node->pkt->pkttype == PKT_PUBLIC_KEY? "pub":"sub",
2795                       nbits_from_pk( pk ),
2796                       pubkey_letter( pk->pubkey_algo ),
2797                       keystr_from_pk(pk));
2798           tty_printf(_("created: %s"),datestr_from_pk(pk));
2799           tty_printf("  ");
2800           tty_printf(_("expires: %s"),expirestr_from_pk(pk));
2801           tty_printf("\n");
2802           print_fingerprint ( pk, NULL, 3 );
2803           tty_printf("\n");
2804         }
2805       else if (node->pkt->pkttype == PKT_SECRET_KEY)
2806         {
2807           PKT_secret_key *sk = node->pkt->pkt.secret_key;
2808           tty_printf("%s  %4u%c/%s",
2809                      node->pkt->pkttype == PKT_SECRET_KEY? "sec":"ssb",
2810                      nbits_from_sk( sk ),
2811                      pubkey_letter( sk->pubkey_algo ),
2812                      keystr_from_sk(sk));
2813           tty_printf(_("created: %s"),datestr_from_sk(sk));
2814           tty_printf("  ");
2815           tty_printf(_("expires: %s"),expirestr_from_sk(sk));
2816           tty_printf("\n");
2817           print_fingerprint (NULL, sk, 3 );
2818           tty_printf("\n");
2819         }
2820     }
2821
2822   /* The user IDs. */
2823   for (i=0, node = keyblock; node; node = node->next)
2824     {
2825       if (node->pkt->pkttype == PKT_USER_ID)
2826         {
2827           PKT_user_id *uid = node->pkt->pkt.user_id;
2828           ++i;
2829      
2830           tty_printf ("     ");
2831           if (uid->is_revoked)
2832             tty_printf("[%s] ",_("revoked"));
2833           else if ( uid->is_expired )
2834             tty_printf("[%s] ",_("expired"));
2835           tty_print_utf8_string (uid->name, uid->len);
2836           tty_printf ("\n");
2837         }
2838     }
2839 }
2840
2841 static void
2842 show_key_and_fingerprint( KBNODE keyblock )
2843 {
2844   KBNODE node;
2845   PKT_public_key *pk = NULL;
2846
2847   for( node = keyblock; node; node = node->next )
2848     {
2849       if( node->pkt->pkttype == PKT_PUBLIC_KEY )
2850         {
2851           pk = node->pkt->pkt.public_key;
2852           tty_printf("pub   %4u%c/%s %s ",
2853                      nbits_from_pk( pk ),
2854                      pubkey_letter( pk->pubkey_algo ),
2855                      keystr_from_pk(pk),
2856                      datestr_from_pk(pk) );
2857         }
2858       else if( node->pkt->pkttype == PKT_USER_ID )
2859         {
2860           PKT_user_id *uid = node->pkt->pkt.user_id;
2861           tty_print_utf8_string( uid->name, uid->len );
2862           break;
2863         }
2864     }
2865   tty_printf("\n");
2866   if( pk )
2867     print_fingerprint( pk, NULL, 2 );
2868 }
2869
2870
2871 /* Show a warning if no uids on the key have the primary uid flag
2872    set. */
2873 static void
2874 no_primary_warning(KBNODE keyblock)
2875 {
2876   KBNODE node;
2877   int have_primary=0,uid_count=0;
2878
2879   /* TODO: if we ever start behaving differently with a primary or
2880      non-primary attribute ID, we will need to check for attributes
2881      here as well. */
2882
2883   for(node=keyblock; node; node = node->next)
2884     {
2885       if(node->pkt->pkttype==PKT_USER_ID
2886          && node->pkt->pkt.user_id->attrib_data==NULL)
2887         {
2888           uid_count++;
2889
2890           if(node->pkt->pkt.user_id->is_primary==2)
2891             {
2892               have_primary=1;
2893               break;
2894             }
2895         }
2896     }
2897
2898   if(uid_count>1 && !have_primary)
2899     log_info(_("WARNING: no user ID has been marked as primary.  This command"
2900                " may\n              cause a different user ID to become"
2901                " the assumed primary.\n"));
2902 }
2903
2904 /****************
2905  * Ask for a new user id, do the selfsignature and put it into
2906  * both keyblocks.
2907  * Return true if there is a new user id
2908  */
2909 static int
2910 menu_adduid( KBNODE pub_keyblock, KBNODE sec_keyblock,
2911              int photo, const char *photo_name)
2912 {
2913     PKT_user_id *uid;
2914     PKT_public_key *pk=NULL;
2915     PKT_secret_key *sk=NULL;
2916     PKT_signature *sig=NULL;
2917     PACKET *pkt;
2918     KBNODE node;
2919     KBNODE pub_where=NULL, sec_where=NULL;
2920     int rc;
2921
2922     for( node = pub_keyblock; node; pub_where = node, node = node->next ) {
2923         if( node->pkt->pkttype == PKT_PUBLIC_KEY )
2924             pk = node->pkt->pkt.public_key;
2925         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
2926             break;
2927     }
2928     if( !node ) /* no subkey */
2929         pub_where = NULL;
2930     for( node = sec_keyblock; node; sec_where = node, node = node->next ) {
2931         if( node->pkt->pkttype == PKT_SECRET_KEY )
2932             sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
2933         else if( node->pkt->pkttype == PKT_SECRET_SUBKEY )
2934             break;
2935     }
2936     if( !node ) /* no subkey */
2937         sec_where = NULL;
2938     assert(pk && sk);
2939
2940     if(photo) {
2941       int hasattrib=0;
2942
2943       for( node = pub_keyblock; node; node = node->next )
2944         if( node->pkt->pkttype == PKT_USER_ID &&
2945             node->pkt->pkt.user_id->attrib_data!=NULL)
2946           {
2947             hasattrib=1;
2948             break;
2949           }
2950
2951       /* It is legal but bad for compatibility to add a photo ID to a
2952          v3 key as it means that PGP2 will not be able to use that key
2953          anymore.  Also, PGP may not expect a photo on a v3 key.
2954          Don't bother to ask this if the key already has a photo - any
2955          damage has already been done at that point. -dms */
2956       if(pk->version==3 && !hasattrib)
2957         {
2958           if(opt.expert)
2959             {
2960               tty_printf(_("WARNING: This is a PGP2-style key.  "
2961                            "Adding a photo ID may cause some versions\n"
2962                            "         of PGP to reject this key.\n"));
2963
2964               if(!cpr_get_answer_is_yes("keyedit.v3_photo.okay",
2965                                         _("Are you sure you still want "
2966                                           "to add it? (y/N) ")))
2967                 return 0;
2968             }
2969           else
2970             {
2971               tty_printf(_("You may not add a photo ID to "
2972                            "a PGP2-style key.\n"));
2973               return 0;
2974             }
2975         }
2976
2977       uid = generate_photo_id(pk,photo_name);
2978     } else
2979       uid = generate_user_id();
2980     if( !uid )
2981         return 0;
2982
2983     rc = make_keysig_packet( &sig, pk, uid, NULL, sk, 0x13, 0, 0, 0, 0,
2984                              keygen_add_std_prefs, pk );
2985     free_secret_key( sk );
2986     if( rc ) {
2987         log_error("signing failed: %s\n", g10_errstr(rc) );
2988         free_user_id(uid);
2989         return 0;
2990     }
2991
2992     /* insert/append to secret keyblock */
2993     pkt = xmalloc_clear( sizeof *pkt );
2994     pkt->pkttype = PKT_USER_ID;
2995     pkt->pkt.user_id = scopy_user_id(uid);
2996     node = new_kbnode(pkt);
2997     if( sec_where )
2998         insert_kbnode( sec_where, node, 0 );
2999     else
3000         add_kbnode( sec_keyblock, node );
3001     pkt = xmalloc_clear( sizeof *pkt );
3002     pkt->pkttype = PKT_SIGNATURE;
3003     pkt->pkt.signature = copy_signature(NULL, sig);
3004     if( sec_where )
3005         insert_kbnode( node, new_kbnode(pkt), 0 );
3006     else
3007         add_kbnode( sec_keyblock, new_kbnode(pkt) );
3008     /* insert/append to public keyblock */
3009     pkt = xmalloc_clear( sizeof *pkt );
3010     pkt->pkttype = PKT_USER_ID;
3011     pkt->pkt.user_id = uid;
3012     node = new_kbnode(pkt);
3013     if( pub_where )
3014         insert_kbnode( pub_where, node, 0 );
3015     else
3016         add_kbnode( pub_keyblock, node );
3017     pkt = xmalloc_clear( sizeof *pkt );
3018     pkt->pkttype = PKT_SIGNATURE;
3019     pkt->pkt.signature = copy_signature(NULL, sig);
3020     if( pub_where )
3021         insert_kbnode( node, new_kbnode(pkt), 0 );
3022     else
3023         add_kbnode( pub_keyblock, new_kbnode(pkt) );
3024     return 1;
3025 }
3026
3027
3028 /****************
3029  * Remove all selected userids from the keyrings
3030  */
3031 static void
3032 menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock )
3033 {
3034     KBNODE node;
3035     int selected=0;
3036
3037     for( node = pub_keyblock; node; node = node->next ) {
3038         if( node->pkt->pkttype == PKT_USER_ID ) {
3039             selected = node->flag & NODFLG_SELUID;
3040             if( selected ) {
3041                 /* Only cause a trust update if we delete a
3042                    non-revoked user id */
3043                 if(!node->pkt->pkt.user_id->is_revoked)
3044                   update_trust=1;
3045                 delete_kbnode( node );
3046                 if( sec_keyblock ) {
3047                     KBNODE snode;
3048                     int s_selected = 0;
3049                     PKT_user_id *uid = node->pkt->pkt.user_id;
3050                     for( snode = sec_keyblock; snode; snode = snode->next ) {
3051                         if( snode->pkt->pkttype == PKT_USER_ID ) {
3052                             PKT_user_id *suid = snode->pkt->pkt.user_id;
3053
3054                             s_selected =
3055                                 (uid->len == suid->len
3056                                  && !memcmp( uid->name, suid->name, uid->len));
3057                             if( s_selected )
3058                                 delete_kbnode( snode );
3059                         }
3060                         else if( s_selected
3061                                  && snode->pkt->pkttype == PKT_SIGNATURE )
3062                             delete_kbnode( snode );
3063                         else if( snode->pkt->pkttype == PKT_SECRET_SUBKEY )
3064                             s_selected = 0;
3065                     }
3066                 }
3067             }
3068         }
3069         else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
3070             delete_kbnode( node );
3071         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3072             selected = 0;
3073     }
3074     commit_kbnode( &pub_keyblock );
3075     if( sec_keyblock )
3076         commit_kbnode( &sec_keyblock );
3077 }
3078
3079
3080 static int
3081 menu_delsig( KBNODE pub_keyblock )
3082 {
3083     KBNODE node;
3084     PKT_user_id *uid = NULL;
3085     int changed=0;
3086
3087     for( node = pub_keyblock; node; node = node->next ) {
3088         if( node->pkt->pkttype == PKT_USER_ID ) {
3089             uid = (node->flag & NODFLG_SELUID)? node->pkt->pkt.user_id : NULL;
3090         }
3091         else if( uid && node->pkt->pkttype == PKT_SIGNATURE ) {
3092            int okay, valid, selfsig, inv_sig, no_key, other_err;
3093
3094             tty_printf("uid  ");
3095             tty_print_utf8_string( uid->name, uid->len );
3096             tty_printf("\n");
3097
3098             okay = inv_sig = no_key = other_err = 0;
3099             if(opt.with_colons)
3100               valid = print_and_check_one_sig_colon( pub_keyblock, node,
3101                                                &inv_sig, &no_key, &other_err,
3102                                                &selfsig, 1 );
3103             else
3104               valid = print_and_check_one_sig( pub_keyblock, node,
3105                                                &inv_sig, &no_key, &other_err,
3106                                                &selfsig, 1 );
3107
3108            if( valid ) {
3109                okay = cpr_get_answer_yes_no_quit(
3110                    "keyedit.delsig.valid",
3111                    _("Delete this good signature? (y/N/q)"));
3112
3113                /* Only update trust if we delete a good signature.
3114                   The other two cases do not affect trust. */
3115                if(okay)
3116                  update_trust=1;
3117            }
3118            else if( inv_sig || other_err )
3119                okay = cpr_get_answer_yes_no_quit(
3120                    "keyedit.delsig.invalid",
3121                    _("Delete this invalid signature? (y/N/q)"));
3122            else if( no_key )
3123                okay = cpr_get_answer_yes_no_quit(
3124                    "keyedit.delsig.unknown",
3125                    _("Delete this unknown signature? (y/N/q)"));
3126
3127             if( okay == -1 )
3128                 break;
3129            if( okay && selfsig && !cpr_get_answer_is_yes(
3130                                "keyedit.delsig.selfsig",
3131                               _("Really delete this self-signature? (y/N)") ))
3132                 okay = 0;
3133             if( okay ) {
3134                 delete_kbnode( node );
3135                 changed++;
3136             }
3137
3138         }
3139         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3140             uid = NULL;
3141     }
3142
3143     if( changed ) {
3144         commit_kbnode( &pub_keyblock );
3145         tty_printf( changed == 1? _("Deleted %d signature.\n")
3146                                 : _("Deleted %d signatures.\n"), changed );
3147     }
3148     else
3149         tty_printf( _("Nothing deleted.\n") );
3150
3151     return changed;
3152 }
3153
3154 static int
3155 menu_clean(KBNODE keyblock,int self_only)
3156 {
3157   KBNODE uidnode;
3158   int modified=0,select_all=!count_selected_uids(keyblock);
3159
3160   for(uidnode=keyblock->next;
3161       uidnode && uidnode->pkt->pkttype!=PKT_PUBLIC_SUBKEY;
3162       uidnode=uidnode->next)
3163     {
3164       if(uidnode->pkt->pkttype==PKT_USER_ID
3165          && (uidnode->flag&NODFLG_SELUID || select_all))
3166         {
3167           int uids=0,sigs=0;
3168           char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
3169                                     uidnode->pkt->pkt.user_id->len,
3170                                     0);
3171
3172           clean_one_uid(keyblock,uidnode,opt.verbose,self_only,&uids,&sigs);
3173           if(uids)
3174             {
3175               const char *reason;
3176
3177               if(uidnode->pkt->pkt.user_id->is_revoked)
3178                 reason=_("revoked");
3179               else if(uidnode->pkt->pkt.user_id->is_expired)
3180                 reason=_("expired");
3181               else
3182                 reason=_("invalid");
3183
3184               tty_printf("User ID \"%s\" compacted: %s\n",user,reason);
3185
3186               modified=1;
3187             }
3188           else if(sigs)
3189             {
3190               tty_printf(sigs==1?
3191                          "User ID \"%s\": %d signature removed\n":
3192                          "User ID \"%s\": %d signatures removed\n",
3193                          user,sigs);
3194
3195               modified=1;
3196             }
3197           else
3198             tty_printf(_("User ID \"%s\": already clean\n"),user);
3199
3200           xfree(user);
3201         }
3202     }
3203
3204   return modified;
3205 }
3206
3207 /****************
3208  * Remove some of the secondary keys
3209  */
3210 static void
3211 menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock )
3212 {
3213     KBNODE node;
3214     int selected=0;
3215
3216     for( node = pub_keyblock; node; node = node->next ) {
3217         if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY ) {
3218             selected = node->flag & NODFLG_SELKEY;
3219             if( selected ) {
3220                 delete_kbnode( node );
3221                 if( sec_keyblock ) {
3222                     KBNODE snode;
3223                     int s_selected = 0;
3224                     u32 ki[2];
3225
3226                     keyid_from_pk( node->pkt->pkt.public_key, ki );
3227                     for( snode = sec_keyblock; snode; snode = snode->next ) {
3228                         if( snode->pkt->pkttype == PKT_SECRET_SUBKEY ) {
3229                             u32 ki2[2];
3230
3231                             keyid_from_sk( snode->pkt->pkt.secret_key, ki2 );
3232                             s_selected = (ki[0] == ki2[0] && ki[1] == ki2[1]);
3233                             if( s_selected )
3234                                 delete_kbnode( snode );
3235                         }
3236                         else if( s_selected
3237                                  && snode->pkt->pkttype == PKT_SIGNATURE )
3238                             delete_kbnode( snode );
3239                         else
3240                             s_selected = 0;
3241                     }
3242                 }
3243             }
3244         }
3245         else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
3246             delete_kbnode( node );
3247         else
3248             selected = 0;
3249     }
3250     commit_kbnode( &pub_keyblock );
3251     if( sec_keyblock )
3252         commit_kbnode( &sec_keyblock );
3253
3254     /* No need to set update_trust here since signing keys are no
3255        longer used to certify