aboutsummaryrefslogtreecommitdiffstats
path: root/smime/lib/e-cert-db.c
blob: a735d57201d4b0d37693af747882ca6cd94ab77e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* e-cert-db.c
 *
 * Copyright (C) 2003 Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Chris Toshok (toshok@ximian.com)
 */

/* The following is the mozilla license blurb, as the bodies of most
   of these functions were derived from the mozilla source. */

/*
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape security libraries.
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 *
 */


#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <glib.h>
#include <glib/gstdio.h>

/* XXX toshok why oh *why* god WHY did they do this?  no fucking
   sense */
/* private NSS defines used by PSM */
/* (must be declated before cert.h) */
#define CERT_NewTempCertificate __CERT_NewTempCertificate
#define CERT_AddTempCertToPerm __CERT_AddTempCertToPerm

#include "smime-marshal.h"
#include "e-cert-db.h"
#include "e-cert-trust.h"
#include "e-pkcs12.h"

#include "gmodule.h"

#include "nss.h"
#include "ssl.h"
#include "p12plcy.h"
#include "pk11func.h"
#include "nssckbi.h"
#include "secmod.h"
#include "certdb.h"
#include "plstr.h"
#include "prprf.h"
#include "prmem.h"
#include "e-util/e-dialog-utils.h"
#include "e-util/e-util-private.h"
#include <gtk/gtkmessagedialog.h>
#include <libgnome/gnome-i18n.h>
#include <libedataserverui/e-passwords.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

enum {
    PK11_PASSWD,
    PK11_CHANGE_PASSWD,
    CONFIRM_CA_CERT_IMPORT,
    LAST_SIGNAL
};

static guint e_cert_db_signals[LAST_SIGNAL];

struct _ECertDBPrivate {
    guint reserved;
};

#define PARENT_TYPE G_TYPE_OBJECT
static GObjectClass *parent_class;

static CERTDERCerts* e_cert_db_get_certs_from_package (PRArenaPool *arena, char *data, guint32 length);



static void
e_cert_db_dispose (GObject *object)
{
    ECertDB *ec = E_CERT_DB (object);

    if (!ec->priv)
        return;

    /* XXX free instance specific data */

    g_free (ec->priv);
    ec->priv = NULL;

    if (G_OBJECT_CLASS (parent_class)->dispose)
        G_OBJECT_CLASS (parent_class)->dispose (object);
}

#ifdef notyet
PRBool
ucs2_ascii_conversion_fn (PRBool toUnicode,
              unsigned char *inBuf,
              unsigned int inBufLen,
              unsigned char *outBuf,
              unsigned int maxOutBufLen,
              unsigned int *outBufLen,
              PRBool swapBytes)
{
    printf ("in ucs2_ascii_conversion_fn\n");
}
#endif

static char* PR_CALLBACK
pk11_password (PK11SlotInfo* slot, PRBool retry, void* arg)
{
    char *pwd;
    char *nsspwd;

    gboolean rv = FALSE;

    g_signal_emit (e_cert_db_peek (),
               e_cert_db_signals[PK11_PASSWD], 0,
               slot,
               retry,
               &pwd,
               &rv);

    if (pwd == NULL)
        return NULL;

    nsspwd = PORT_Strdup (pwd);
    memset (pwd, 0, strlen (pwd));
    g_free (pwd);
    return nsspwd;
}

static void
initialize_nss (void)
{
    char *evolution_dir_path;
    gboolean success;

    evolution_dir_path = g_build_filename (g_get_home_dir (), ".evolution", NULL);

#ifdef G_OS_WIN32
    /* NSS wants filenames in system codepage */
    {
        char *cp_path = g_win32_locale_filename_from_utf8 (evolution_dir_path);

        if (cp_path) {
            g_free (evolution_dir_path);
            evolution_dir_path = cp_path;
        }
    }
#endif

    /* we initialize NSS here to make sure it only happens once */
    success = (SECSuccess == NSS_InitReadWrite (evolution_dir_path));
    if (!success) {
        success = (SECSuccess == NSS_Init (evolution_dir_path));
        if (success)
            g_warning ("opening cert databases read-only");
    }
    if (!success) {
        success = (SECSuccess == NSS_NoDB_Init (evolution_dir_path));
        if (success)
            g_warning ("initializing security library without cert databases.");
    }
    g_free (evolution_dir_path);

    if (!success) {
        g_warning ("Failed all methods for initializing NSS");
        return;
    }

    NSS_SetDomesticPolicy();

    PK11_SetPasswordFunc(pk11_password);

    /* Enable ciphers for PKCS#12 */
    SEC_PKCS12EnableCipher(PKCS12_RC4_40, 1);
    SEC_PKCS12EnableCipher(PKCS12_RC4_128, 1);
    SEC_PKCS12EnableCipher(PKCS12_RC2_CBC_40, 1);
    SEC_PKCS12EnableCipher(PKCS12_RC2_CBC_128, 1);
    SEC_PKCS12EnableCipher(PKCS12_DES_56, 1);
    SEC_PKCS12EnableCipher(PKCS12_DES_EDE3_168, 1);
    SEC_PKCS12SetPreferredCipher(PKCS12_DES_EDE3_168, 1);
#ifdef notyet
    PORT_SetUCS2_ASCIIConversionFunction(ucs2_ascii_conversion_fn);
#endif
}

static void
install_loadable_roots (void)
{
    SECMODModuleList *list = SECMOD_GetDefaultModuleList ();
    SECMODListLock *lock = SECMOD_GetDefaultModuleListLock ();
    SECMODModule *RootsModule = NULL;
    int i;
    
    SECMOD_GetReadLock (lock);
    while (!RootsModule && list) {
        SECMODModule *module = list->module;
        
        for (i = 0; i < module->slotCount; i++) {
            PK11SlotInfo *slot = module->slots[i];
            if (PK11_IsPresent (slot)) {
                if (PK11_HasRootCerts(slot)) {
                    RootsModule = module;
                    break;
                }
            }
        }
        
        list = list->next;
    }
    SECMOD_ReleaseReadLock (lock);
    
    if (RootsModule) {
        /* Check version, and unload module if it is too old */
        CK_INFO info;

        if (PK11_GetModInfo (RootsModule, &info) != SECSuccess) {
            /* Do not use this module */
            RootsModule = NULL;
        } else {
            /* NSS_BUILTINS_LIBRARY_VERSION_MAJOR and NSS_BUILTINS_LIBRARY_VERSION_MINOR
             * define the version we expect to have.
             * Later version are fine.
             * Older versions are not ok, and we will replace with our own version.
             */ 
            if ((info.libraryVersion.major < NSS_BUILTINS_LIBRARY_VERSION_MAJOR)
                || (info.libraryVersion.major == NSS_BUILTINS_LIBRARY_VERSION_MAJOR
                && info.libraryVersion.minor < NSS_BUILTINS_LIBRARY_VERSION_MINOR)) {
                PRInt32 modType;
                
                SECMOD_DeleteModule (RootsModule->commonName, &modType);
                
                RootsModule = NULL;
            }
        }
    }
    
    if (!RootsModule) {
#ifndef G_OS_WIN32
        /* grovel in various places for mozilla's built-in
           cert module.
           
           XXX yes this is gross.  *sigh*
        */
        char *paths_to_check[] = {
#ifdef MOZILLA_NSS_LIB_DIR
            MOZILLA_NSS_LIB_DIR,
#endif
            "/usr/lib",
            "/usr/lib/mozilla",
            "/opt/mozilla/lib",
            "/opt/mozilla/lib/mozilla"
        };
        
        for (i = 0; i < G_N_ELEMENTS (paths_to_check); i ++) {
            char *dll_path = g_module_build_path (paths_to_check [i], "nssckbi");
            
            if (g_file_test (dll_path, G_FILE_TEST_EXISTS)) {
                PRInt32 modType;

                /* Delete the existing module */
                SECMOD_DeleteModule ("Mozilla Root Certs", &modType);

                SECMOD_AddNewModule("Mozilla Root Certs",dll_path, 0, 0);
                g_free (dll_path);
                break;
            }
            
            g_free (dll_path);
        }
#else
        /* FIXME: Might be useful to look up if there is a
         * Mozilla installation on the machine and use the
         * nssckbi.dll from there.
         */
#endif
    }
}

static void
e_cert_db_class_init (ECertDBClass *klass)
{
    GObjectClass *object_class;

    object_class = G_OBJECT_CLASS(klass);

    parent_class = g_type_class_ref (PARENT_TYPE);

    object_class->dispose = e_cert_db_dispose;

    initialize_nss();
    /* check to see if you have a rootcert module installed */
    install_loadable_roots();

    e_cert_db_signals[PK11_PASSWD] =
        g_signal_new ("pk11_passwd",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ECertDBClass, pk11_passwd),
                  NULL, NULL,
                  smime_marshal_BOOLEAN__POINTER_BOOLEAN_POINTER,
                  G_TYPE_BOOLEAN, 3,
                  G_TYPE_POINTER, G_TYPE_BOOLEAN, G_TYPE_POINTER);

    e_cert_db_signals[PK11_CHANGE_PASSWD] =
        g_signal_new ("pk11_change_passwd",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ECertDBClass, pk11_change_passwd),
                  NULL, NULL,
                  smime_marshal_BOOLEAN__POINTER_POINTER,
                  G_TYPE_BOOLEAN, 2,
                  G_TYPE_POINTER, G_TYPE_POINTER);

    e_cert_db_signals[CONFIRM_CA_CERT_IMPORT] =
        g_signal_new ("confirm_ca_cert_import",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ECertDBClass, confirm_ca_cert_import),
                  NULL, NULL,
                  smime_marshal_BOOLEAN__POINTER_POINTER_POINTER_POINTER,
                  G_TYPE_BOOLEAN, 4,
                  G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_POINTER);
}

static void
e_cert_db_init (ECertDB *ec)
{
    ec->priv = g_new0 (ECertDBPrivate, 1);
}

GType
e_cert_db_get_type (void)
{
    static GType cert_type = 0;

    if (!cert_type) {
        static const GTypeInfo cert_info =  {
            sizeof (ECertDBClass),
            NULL,           /* base_init */
            NULL,           /* base_finalize */
            (GClassInitFunc) e_cert_db_class_init,
            NULL,           /* class_finalize */
            NULL,           /* class_data */
            sizeof (ECertDB),
            0,             /* n_preallocs */
            (GInstanceInitFunc) e_cert_db_init,
        };

        cert_type = g_type_register_static (PARENT_TYPE, "ECertDB", &cert_info, 0);
    }

    return cert_type;
}



GStaticMutex init_mutex = G_STATIC_MUTEX_INIT;
static ECertDB *cert_db = NULL;

ECertDB*
e_cert_db_peek (void)
{
    g_static_mutex_lock (&init_mutex);
    if (!cert_db)
        cert_db = g_object_new (E_TYPE_CERT_DB, NULL);
    g_static_mutex_unlock (&init_mutex);

    return cert_db;
}

void
e_cert_db_shutdown (void)
{
    /* XXX */
}

/* searching for certificates */
ECert*
e_cert_db_find_cert_by_nickname (ECertDB *certdb,
                 const char *nickname,
                 GError **error)
{
    /*  nsNSSShutDownPreventionLock locker;*/
    CERTCertificate *cert = NULL;

    /*PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("Getting \"%s\"\n", asciiname));*/
    cert = PK11_FindCertFromNickname((char*)nickname, NULL);
    if (!cert) {
        cert = CERT_FindCertByNickname(CERT_GetDefaultCertDB(), (char*)nickname);
    }


    if (cert) {
        /*    PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("got it\n"));*/
        ECert *ecert = e_cert_new (cert);
        return ecert;
    }
    else {
        /* XXX gerror */
        return NULL;
    }
}

#ifdef notyet
ECert*
e_cert_db_find_cert_by_key (ECertDB *certdb,
                const char *db_key,
                GError **error)
{
    /*  nsNSSShutDownPreventionLock locker;*/
    SECItem keyItem = {siBuffer, NULL, 0};
    SECItem *dummy;
    CERTIssuerAndSN issuerSN;
    unsigned long moduleID,slotID;
    CERTCertificate *cert;

    if (!db_key) {
        /* XXX gerror */
        return NULL;
    }

    dummy = NSSBase64_DecodeBuffer(NULL, &keyItem, db_key,
                       (PRUint32)PL_strlen(db_key)); 

    /* someday maybe we can speed up the search using the moduleID and slotID*/
    moduleID = NS_NSS_GET_LONG(keyItem.data);
    slotID = NS_NSS_GET_LONG(&keyItem.data[NS_NSS_LONG]);

    /* build the issuer/SN structure*/
    issuerSN.serialNumber.len = NS_NSS_GET_LONG(&keyItem.data[NS_NSS_LONG*2]);
    issuerSN.derIssuer.len = NS_NSS_GET_LONG(&keyItem.data[NS_NSS_LONG*3]);
    issuerSN.serialNumber.data= &keyItem.data[NS_NSS_LONG*4];
    issuerSN.derIssuer.data= &keyItem.data[NS_NSS_LONG*4+
                           issuerSN.serialNumber.len];

    cert = CERT_FindCertByIssuerAndSN(CERT_GetDefaultCertDB(), &issuerSN);
    PR_FREEIF(keyItem.data);
    if (cert) {
        ECert *ecert = e_cert_new (cert);
        return e_cert;
    }

    /* XXX gerror */
    return NULL;
}

GList*
e_cert_db_get_cert_nicknames    (ECertDB *certdb,
                 ECertType cert_type,
                 GError **error)
{
}

ECert*
e_cert_db_find_email_encryption_cert (ECertDB *certdb,
                      const char *nickname,
                      GError **error)
{
}

ECert*
e_cert_db_find_email_signing_cert (ECertDB *certdb,
                   const char *nickname,
                   GError **error)
{
}
#endif

ECert*
e_cert_db_find_cert_by_email_address (ECertDB *certdb,
                      const char *email,
                      GError **error)
{
    /*  nsNSSShutDownPreventionLock locker; */
    ECert *cert;
    CERTCertificate *any_cert = CERT_FindCertByNicknameOrEmailAddr(CERT_GetDefaultCertDB(),
                                       (char*)email);
    CERTCertList *certlist;

    if (!any_cert) {
        /* XXX gerror */
        return NULL;
    }

    /* any_cert now contains a cert with the right subject, but it might not have the correct usage */
    certlist = CERT_CreateSubjectCertList(NULL,
                          CERT_GetDefaultCertDB(),
                          &any_cert->derSubject,
                          PR_Now(), PR_TRUE);
    if (!certlist) {
        /* XXX gerror */
        CERT_DestroyCertificate(any_cert);
        return NULL;
    }

    if (SECSuccess != CERT_FilterCertListByUsage(certlist, certUsageEmailRecipient, PR_FALSE)) {
        /* XXX gerror */
        CERT_DestroyCertificate(any_cert);
        /* XXX free certlist? */
        return NULL;
    }
  
    if (CERT_LIST_END(CERT_LIST_HEAD(certlist), certlist)) {
        /* XXX gerror */
        CERT_DestroyCertificate(any_cert);
        /* XXX free certlist? */
        return NULL;
    }

    cert = e_cert_new (CERT_LIST_HEAD(certlist)->cert);

    return cert;
}

static gboolean
confirm_download_ca_cert (ECertDB *cert_db, ECert *cert, gboolean *trust_ssl, gboolean *trust_email, gboolean *trust_objsign)
{
    gboolean rv = FALSE;

    *trust_ssl =
        *trust_email =
        *trust_objsign = FALSE;

    g_signal_emit (e_cert_db_peek (),
               e_cert_db_signals[CONFIRM_CA_CERT_IMPORT], 0,
               cert,
               trust_ssl,
               trust_email,
               trust_objsign,
               &rv);

    return rv;
}

static gboolean
handle_ca_cert_download(ECertDB *cert_db, GList *certs, GError **error)
{
    ECert *certToShow;
    SECItem der;
    CERTCertificate *tmpCert;

    /* First thing we have to do is figure out which certificate
       we're gonna present to the user.  The CA may have sent down
       a list of certs which may or may not be a chained list of
       certs.  Until the day we can design some solid UI for the
       general case, we'll code to the > 90% case.  That case is
       where a CA sends down a list that is a chain up to its root
       in either ascending or descending order.  What we're gonna
       do is compare the first 2 entries, if the first was signed
       by the second, we assume the leaf cert is the first cert
       and display it.  If the second cert was signed by the first
       cert, then we assume the first cert is the root and the
       last cert in the array is the leaf.  In this case we
       display the last cert.
    */

    /*  nsNSSShutDownPreventionLock locker;*/

    if (certs == NULL) {
        g_warning ("Didn't get any certs to import.");
        return TRUE;
    }
    else if (certs->next == NULL) {
        /* there's 1 cert */
        certToShow = E_CERT (certs->data);
    }
    else {
        /* there are multiple certs */
        ECert *cert0;
        ECert *cert1;
        const char* cert0SubjectName;
        const char* cert0IssuerName;
        const char* cert1SubjectName;
        const char* cert1IssuerName;
        
        cert0 = E_CERT (certs->data);
        cert1 = E_CERT (certs->next->data);

        cert0IssuerName = e_cert_get_issuer_name (cert0);
        cert0SubjectName = e_cert_get_subject_name (cert0);

        cert1IssuerName = e_cert_get_issuer_name (cert1);
        cert1SubjectName = e_cert_get_subject_name (cert1);

        if (!strcmp(cert1IssuerName, cert0SubjectName)) {
            /* In this case, the first cert in the list signed the second,
               so the first cert is the root.  Let's display the last cert 
               in the list. */
            certToShow = E_CERT (g_list_last (certs)->data);
        }
        else if (!strcmp(cert0IssuerName, cert1SubjectName)) {
            /* In this case the second cert has signed the first cert.  The 
               first cert is the leaf, so let's display it. */
            certToShow = cert0;
        } else {
            /* It's not a chain, so let's just show the first one in the 
               downloaded list. */
            certToShow = cert0;
        }
    }

    if (!certToShow) {
        /* XXX gerror */
        return FALSE;
    }

    if (!e_cert_get_raw_der (certToShow, (char**)&der.data, &der.len)) {
        /* XXX gerror */
        return FALSE;
    }

    {
        /*PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("Creating temp cert\n"));*/
        CERTCertDBHandle *certdb = CERT_GetDefaultCertDB();
        tmpCert = CERT_FindCertByDERCert(certdb, &der);
        if (!tmpCert) {
            tmpCert = CERT_NewTempCertificate(certdb, &der,
                              NULL, PR_FALSE, PR_TRUE);
        }
        if (!tmpCert) {
            g_warning ("Couldn't create cert from DER blob");
            return FALSE;
        }
    }

#if 0
    CERTCertificateCleaner tmpCertCleaner(tmpCert);
#endif

    if (tmpCert->isperm) {
        /* XXX we shouldn't be popping up dialogs in this code. */
        e_notice (NULL, GTK_MESSAGE_WARNING, _("Certificate already exists"));
        /* XXX gerror */
        return FALSE;
    }
    else {
        gboolean trust_ssl, trust_email, trust_objsign;
        char *nickname;
        SECStatus srv;
        CERTCertTrust trust;

        if (!confirm_download_ca_cert (cert_db, certToShow, &trust_ssl, &trust_email, &trust_objsign)) {
            /* XXX gerror */
            return FALSE;
        }

        /*PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("trust is %d\n", trustBits));*/
        
        nickname = CERT_MakeCANickname(tmpCert);

        /*PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("Created nick \"%s\"\n", nickname.get()));*/

        e_cert_trust_init (&trust);
        e_cert_trust_set_valid_ca (&trust);
        e_cert_trust_add_ca_trust (&trust,
                       trust_ssl,
                       trust_email,
                       trust_objsign);

        srv = CERT_AddTempCertToPerm(tmpCert,
                         nickname,
                         &trust); 

        if (srv != SECSuccess) {
            /* XXX gerror */
            return FALSE;
        }

#if 0
        /* Now it's time to add the rest of the certs we just downloaded.
           Since we didn't prompt the user about any of these certs, we
           won't set any trust bits for them. */
        e_cert_trust_init (&trust);
        e_cert_trust_set_valid_ca (&trust);
        e_cert_trusts_add_ca_trust (&trust, 0, 0, 0);
        for (PRUint32 i=0; i<numCerts; i++) {
            if (i == selCertIndex)
                continue;

            certToShow = do_QueryElementAt(x509Certs, i);
            certToShow->GetRawDER(&der.len, (PRUint8 **)&der.data);

            CERTCertificate *tmpCert2 = 
                CERT_NewTempCertificate(certdb, &der, nsnull, PR_FALSE, PR_TRUE);

            if (!tmpCert2) {
                NS_ASSERTION(0, "Couldn't create temp cert from DER blob\n");
                continue;  /* Let's try to import the rest of 'em */
            }
            nickname.Adopt(CERT_MakeCANickname(tmpCert2));
            CERT_AddTempCertToPerm(tmpCert2, NS_CONST_CAST(char*,nickname.get()), 
                           defaultTrust.GetTrust());
            CERT_DestroyCertificate(tmpCert2);
        }
#endif
        return TRUE;
    }
}

/* deleting certificates */
gboolean
e_cert_db_delete_cert (ECertDB *certdb,
               ECert   *ecert)
{
    /*  nsNSSShutDownPreventionLock locker;
        nsNSSCertificate *nssCert = NS_STATIC_CAST(nsNSSCertificate*, aCert); */

    CERTCertificate *cert;
    SECStatus srv = SECSuccess;
    if (!e_cert_mark_for_deletion (ecert)) {
        return FALSE;
    }

    cert = e_cert_get_internal_cert (ecert);
    if (cert->slot && e_cert_get_cert_type (ecert) != E_CERT_USER) {
        /* To delete a cert of a slot (builtin, most likely), mark it as
           completely untrusted.  This way we keep a copy cached in the
           local database, and next time we try to load it off of the 
           external token/slot, we'll know not to trust it.  We don't 
           want to do that with user certs, because a user may  re-store
           the cert onto the card again at which point we *will* want to 
           trust that cert if it chains up properly. */
        CERTCertTrust trust;

        e_cert_trust_init_with_values (&trust, 0, 0, 0);
        srv = CERT_ChangeCertTrust(CERT_GetDefaultCertDB(), 
                       cert, &trust);
    }

    /*PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("cert deleted: %d", srv));*/
    return (srv) ? FALSE : TRUE;
}

/* importing certificates */
gboolean
e_cert_db_import_certs (ECertDB *certdb,
            char *data, guint32 length,
            ECertType cert_type,
            GError **error)
{
    /*nsNSSShutDownPreventionLock locker;*/
    PRArenaPool *arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
    GList *certs = NULL;
    CERTDERCerts *certCollection = e_cert_db_get_certs_from_package (arena, data, length);
    int i;
    gboolean rv;

    if (!certCollection) {
        /* XXX gerror */
        PORT_FreeArena(arena, PR_FALSE);
        return FALSE;
    }

    /* Now let's create some certs to work with */
    for (i=0; i<certCollection->numcerts; i++) {
        SECItem *currItem = &certCollection->rawCerts[i];
        ECert *cert;
        
        cert = e_cert_new_from_der ((char*)currItem->data, currItem->len);
        if (!cert) {
            /* XXX gerror */
            g_list_foreach (certs, (GFunc)g_object_unref, NULL);
            g_list_free (certs);
            PORT_FreeArena(arena, PR_FALSE);
            return FALSE;
        }
        certs = g_list_append (certs, cert);
    }
    switch (cert_type) {
    case E_CERT_CA:
        rv = handle_ca_cert_download(certdb, certs, error);
        break;
    default:
        /* We only deal with import CA certs in this method currently.*/
        /* XXX gerror */
        PORT_FreeArena(arena, PR_FALSE);
        rv = FALSE;
    }  

    g_list_foreach (certs, (GFunc)g_object_unref, NULL);
    g_list_free (certs);
    PORT_FreeArena(arena, PR_FALSE);
    return rv;
}

gboolean
e_cert_db_import_email_cert (ECertDB *certdb,
                 char *data, guint32 length,
                 GError **error)
{
    /*nsNSSShutDownPreventionLock locker;*/
    SECStatus srv = SECFailure;
    gboolean rv = TRUE;
    CERTCertificate * cert;
    SECItem **rawCerts;
    int numcerts;
    int i;
    PRArenaPool *arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
    CERTDERCerts *certCollection = e_cert_db_get_certs_from_package (arena, data, length);

    if (!certCollection) {
        /* XXX g_error */

        PORT_FreeArena(arena, PR_FALSE);
        return FALSE;
    }

    cert = CERT_NewTempCertificate(CERT_GetDefaultCertDB(), certCollection->rawCerts,
                       (char *)NULL, PR_FALSE, PR_TRUE);
    if (!cert) {
        /* XXX g_error */
        rv = FALSE;
        goto loser;
    }
    numcerts = certCollection->numcerts;
    rawCerts = (SECItem **) PORT_Alloc(sizeof(SECItem *) * numcerts);
    if ( !rawCerts ) {
        /* XXX g_error */
        rv = FALSE;
        goto loser;
    }

    for ( i = 0; i < numcerts; i++ ) {
        rawCerts[i] = &certCollection->rawCerts[i];
    }
 
    srv = CERT_ImportCerts(CERT_GetDefaultCertDB(), certUsageEmailSigner,
                   numcerts, rawCerts, NULL, PR_TRUE, PR_FALSE,
                   NULL);
    if ( srv != SECSuccess ) {
        /* XXX g_error */
        rv = FALSE;
        goto loser;
    }
    srv = CERT_SaveSMimeProfile(cert, NULL, NULL);
    PORT_Free(rawCerts);
 loser:
    if (cert)
        CERT_DestroyCertificate(cert);
    if (arena) 
        PORT_FreeArena(arena, PR_TRUE);
    return rv;
}

static char *
default_nickname (CERTCertificate *cert)
{   
    /*  nsNSSShutDownPreventionLock locker; */
    char *username = NULL;
    char *caname = NULL;
    char *nickname = NULL;
    char *tmp = NULL;
    int count;
    char *nickFmt=NULL;
    CERTCertificate *dummycert;
    PK11SlotInfo *slot=NULL;
    CK_OBJECT_HANDLE keyHandle;

    CERTCertDBHandle *defaultcertdb = CERT_GetDefaultCertDB();

    username = CERT_GetCommonName(&cert->subject);
    if ( username == NULL ) 
        username = PL_strdup("");

    if ( username == NULL ) 
        goto loser;
    
    caname = CERT_GetOrgName(&cert->issuer);
    if ( caname == NULL ) 
        caname = PL_strdup("");
  
    if ( caname == NULL ) 
        goto loser;
  
    count = 1;

    nickFmt = "%1$s's %2$s ID";

    nickname = PR_smprintf(nickFmt, username, caname);
    /*
     * We need to see if the private key exists on a token, if it does
     * then we need to check for nicknames that already exist on the smart
     * card.
     */
    slot = PK11_KeyForCertExists(cert, &keyHandle, NULL);
    if (slot == NULL) {
        goto loser;
    }
    if (!PK11_IsInternal(slot)) {
        tmp = PR_smprintf("%s:%s", PK11_GetTokenName(slot), nickname);
        PR_Free(nickname);
        nickname = tmp;
        tmp = NULL;
    }
    tmp = nickname;
    while ( 1 ) {   
        if ( count > 1 ) {
            nickname = PR_smprintf("%s #%d", tmp, count);
        }
  
        if ( nickname == NULL ) 
            goto loser;
 
        if (PK11_IsInternal(slot)) {
            /* look up the nickname to make sure it isn't in use already */
            dummycert = CERT_FindCertByNickname(defaultcertdb, nickname);
      
        } else {
            /*
             * Check the cert against others that already live on the smart 
             * card.
             */
            dummycert = PK11_FindCertFromNickname(nickname, NULL);
            if (dummycert != NULL) {
                /*
                 * Make sure the subject names are different.
                 */ 
                if (CERT_CompareName(&cert->subject, &dummycert->subject) == SECEqual) {
                    /*
                     * There is another certificate with the same nickname and
                     * the same subject name on the smart card, so let's use this
                     * nickname.
                     */
                    CERT_DestroyCertificate(dummycert);
                    dummycert = NULL;
                }
            }
        }
        if ( dummycert == NULL ) 
            goto done;
    
        /* found a cert, destroy it and loop */
        CERT_DestroyCertificate(dummycert);
        if (tmp != nickname) PR_Free(nickname);
        count++;
    } /* end of while(1) */

 loser:
    if ( nickname ) {
        PR_Free(nickname);
    }
    nickname = NULL;
 done:
    if ( caname ) {
        PR_Free(caname);
    }
    if ( username )  {
        PR_Free(username);
    }
    if (slot != NULL) {
        PK11_FreeSlot(slot);
        if (nickname != NULL) {
            tmp = nickname;
            nickname = strchr(tmp, ':');
            if (nickname != NULL) {
                nickname++;
                nickname = PL_strdup(nickname);
                PR_Free(tmp);
                tmp = NULL;
            } else {
                nickname = tmp;
                tmp = NULL;
            }
        }
    }
    PR_FREEIF(tmp);
    return(nickname);
}

gboolean
e_cert_db_import_user_cert (ECertDB *certdb,
                char *data, guint32 length,
                GError **error)
{
    /*  nsNSSShutDownPreventionLock locker;*/
    PK11SlotInfo *slot;
    char * nickname = NULL;
    gboolean rv = FALSE;
    int numCACerts;
    SECItem *CACerts;
    CERTDERCerts * collectArgs;
    PRArenaPool *arena;
    CERTCertificate * cert=NULL;

    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
    if ( arena == NULL ) {
        /* XXX g_error */
        goto loser;
    }

    collectArgs = e_cert_db_get_certs_from_package (arena, data, length);
    if (!collectArgs) {
        /* XXX g_error */
        goto loser;
    }

    cert = CERT_NewTempCertificate(CERT_GetDefaultCertDB(), collectArgs->rawCerts,
                       (char *)NULL, PR_FALSE, PR_TRUE);
    if (!cert) {
        /* XXX g_error */
        goto loser;
    }

    slot = PK11_KeyForCertExists(cert, NULL, NULL);
    if ( slot == NULL ) {
        /* XXX g_error */
        goto loser;
    }
    PK11_FreeSlot(slot);

    /* pick a nickname for the cert */
    if (cert->nickname) {
        /* sigh, we need a call to look up other certs with this subject and
         * identify nicknames from them. We can no longer walk down internal
         * database structures  rjr */
        nickname = cert->nickname;
    }
    else {
        nickname = default_nickname(cert);
    }

    /* user wants to import the cert */
    slot = PK11_ImportCertForKey(cert, nickname, NULL);
    if (!slot) {
        /* XXX g_error */
        goto loser;
    }
    PK11_FreeSlot(slot);
    numCACerts = collectArgs->numcerts - 1;

    if (numCACerts) {
        CACerts = collectArgs->rawCerts+1;
        if ( ! CERT_ImportCAChain(CACerts, numCACerts, certUsageUserCertImport) ) {
            rv = TRUE;
        }
    }
  
 loser:
    if (arena) {
        PORT_FreeArena(arena, PR_FALSE);
    }
    if ( cert ) {
        CERT_DestroyCertificate(cert);
    }
    return rv;
}

gboolean
e_cert_db_import_server_cert (ECertDB *certdb,
                  char *data, guint32 length,
                  GError **error)
{
    /* not c&p'ing this over at the moment, as we don't have a UI
       for server certs anyway */
    return FALSE;
}

gboolean
e_cert_db_import_certs_from_file (ECertDB *cert_db,
                  const char *file_path,
                  ECertType cert_type,
                  GError **error)
{
    gboolean rv;
    int fd;
    struct stat sb;
    char *buf;
    int bytes_read;

    switch (cert_type) {
    case E_CERT_CA:
    case E_CERT_CONTACT:
    case E_CERT_SITE:
        /* good */
        break;
    
    default:
        /* not supported (yet) */
        /* XXX gerror */
        return FALSE;
    }

    fd = g_open (file_path, O_RDONLY|O_BINARY, 0);
    if (fd == -1) {
        /* XXX gerror */
        return FALSE;
    }

    if (-1 == fstat (fd, &sb)) {
        /* XXX gerror */
        close (fd);
        return FALSE;
    }
  
    buf = g_malloc (sb.st_size);
    if (!buf) {
        /* XXX gerror */
        close (fd);
        return FALSE;
    }

    bytes_read = read (fd, buf, sb.st_size);

    close (fd);
  
    if (bytes_read != sb.st_size) {
        /* XXX gerror */
        rv = FALSE;
    }
    else {
        printf ("importing %d bytes from `%s'\n", bytes_read, file_path);

        switch (cert_type) {
        case E_CERT_CA:
            rv = e_cert_db_import_certs (cert_db, buf, bytes_read, cert_type, error);
            break;

        case E_CERT_SITE:
            rv = e_cert_db_import_server_cert (cert_db, buf, bytes_read, error);
            break;

        case E_CERT_CONTACT:
            rv = e_cert_db_import_email_cert (cert_db, buf, bytes_read, error);
            break;
      
        default:
            rv = FALSE;
            break;
        }
    }

    g_free (buf);
    return rv;  
}

gboolean
e_cert_db_import_pkcs12_file (ECertDB *cert_db,
                  const char *file_path,
                  GError **error)
{
    EPKCS12 *pkcs12 = e_pkcs12_new ();
    GError *e = NULL;

    if (!e_pkcs12_import_from_file (pkcs12, file_path, &e)) {
        g_propagate_error (error, e);
        return FALSE;
    }

    return TRUE;
}

#ifdef notyet
gboolean
e_cert_db_export_pkcs12_file (ECertDB *cert_db,
                  const char *file_path,
                  GList *certs,
                  GError **error)
{
}
#endif

gboolean
e_cert_db_login_to_slot (ECertDB *cert_db,
             PK11SlotInfo *slot)
{
    if (PK11_NeedLogin (slot)) {
        PK11_Logout (slot);

        if (PK11_NeedUserInit (slot)) {
            char *pwd;
            gboolean rv = FALSE;

            printf ("initializing slot password\n");

            g_signal_emit (e_cert_db_peek (),
                       e_cert_db_signals[PK11_CHANGE_PASSWD], 0,
                       NULL,
                       &pwd,
                       &rv);

            if (!rv)
                return FALSE;

            /* the user needs to specify the initial password */
            PK11_InitPin (slot, "", pwd);
        }

        PK11_SetPasswordFunc(pk11_password);
        if (PK11_Authenticate (slot, PR_TRUE, NULL) != SECSuccess) {
            printf ("PK11_Authenticate failed (err = %d/%d)\n", PORT_GetError(), PORT_GetError() + 0x2000);
            return FALSE;
        }
    }

    return TRUE;
}



static SECStatus PR_CALLBACK
collect_certs(void *arg, SECItem **certs, int numcerts)
{
    CERTDERCerts *collectArgs;
    SECItem *cert;
    SECStatus rv;

    collectArgs = (CERTDERCerts *)arg;

    collectArgs->numcerts = numcerts;
    collectArgs->rawCerts = (SECItem *) PORT_ArenaZAlloc(collectArgs->arena, sizeof(SECItem) * numcerts);
    if ( collectArgs->rawCerts == NULL )
        return(SECFailure);

    cert = collectArgs->rawCerts;

    while ( numcerts-- ) {
        rv = SECITEM_CopyItem(collectArgs->arena, cert, *certs);
        if ( rv == SECFailure )
            return(SECFailure);
        cert++;
        certs++;
    }

    return (SECSuccess);
}

static CERTDERCerts*
e_cert_db_get_certs_from_package (PRArenaPool *arena,
                  char *data,
                  guint32 length)
{
    /*nsNSSShutDownPreventionLock locker;*/
    CERTDERCerts *collectArgs = 
        (CERTDERCerts *)PORT_ArenaZAlloc(arena, sizeof(CERTDERCerts));
    SECStatus sec_rv;

    if (!collectArgs)
        return NULL;

    collectArgs->arena = arena;
    sec_rv = CERT_DecodeCertPackage(data,
                    length, collect_certs, 
                    (void *)collectArgs);

    if (sec_rv != SECSuccess)
        return NULL;

    return collectArgs;
}