-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathgpgdir
executable file
·1771 lines (1513 loc) · 55.1 KB
/
gpgdir
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
#!/usr/bin/perl -w
#
###########################################################################
#
# File: gpgdir
#
# URL: http://www.cipherdyne.org/gpgdir/
#
# Purpose: To encrypt/decrypt whole directories
#
# Author: Michael Rash ([email protected])
#
# Version: 1.9.6
#
# Copyright (C) 2002-2010 Michael Rash ([email protected])
#
# License: GNU General Public License version 2 (GPLv2)
#
# 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
#
###########################################################################
#
use File::Find;
use File::Copy;
use Fcntl qw/:mode/;
use IO::File;
use IO::Handle;
use Getopt::Long;
use Cwd;
use strict;
### set the current gpgdir version and file revision numbers
my $version = '1.9.6';
### establish some defaults
my $encrypt_user = '';
my $gpg_homedir = '';
my $op_dir = '';
my $pw = '';
my $encrypt_dir = '';
my $decrypt_dir = '';
my $sign_dir = '';
my $verify_dir = '';
my $homedir = '';
my $exclude_file = '';
my $include_file = '';
my $lib_dir = '/usr/lib/gpgdir';
my $pid_file = '';
my $total_encrypted = 0;
my $total_decrypted = 0;
my $norecurse = 0;
my $printver = 0;
my $no_delete = 0;
my $no_fs_times = 0;
my $test_and_exit = 0;
my $trial_run = 0;
my $skip_test_mode = 0;
my $verbose = 0;
my $quiet = 0;
my $use_gpg_agent = 0; ### use gpg-agent for passwords
my $gpg_agent_info = '';
my $force_mode = 0;
my $help = 0;
my $wipe_mode = 0;
my $encrypt_mode = 0;
my $signing_mode = 0;
my $verify_mode = 0;
my $use_default_key = 0;
my $pw_file = '';
my $wipe_cmd = '/usr/bin/wipe';
my $wipe_cmdline = '';
my $wipe_interactive = 0;
my $interactive_mode = 0;
my $ascii_armor_mode = 0;
my @exclude_patterns = ();
my @include_patterns = ();
my %files = ();
my %options = ();
my %obfuscate_ctrs = ();
my %obfuscated_dirs = ();
my $total_mapped_files = 0;
my $have_obfuscated_file = 0;
my $cmdline_no_password = 0;
my $obfuscate_mode = 0;
my $obfuscate_map_file = '.gpgdir_map_file';
my $obfuscate_dir_map_file = '.gpgdir_dir_map_file'; ### for obfuscated dir names
my $obf_current_dir_map_file = '';
my $obf_current_pt_dir_map_file = '';
my $overwrite_encrypted = 0;
my $overwrite_decrypted = 0;
my $symmetric_mode = 0;
my $DEL_SOURCE_FILE = 1;
my $NO_DEL_SOURCE_FILE = 0;
my $locale = 'C'; ### default LC_ALL env variable
my $no_locale = 0;
### for user answers
my $ACCEPT_YES_DEFAULT = 1;
my $ACCEPT_NO_DEFAULT = 2;
### turn off buffering
$| = 1;
unless ($< == $>) {
die "[*] Real and effective uid must be the same. Make sure\n",
" gpgdir has not been installed as a SUID binary.\n",
"Exiting.";
}
my @args_cp = @ARGV;
### make Getopts case sensitive
Getopt::Long::Configure('no_ignore_case');
die "[*] Use --help for usage information.\n" unless(GetOptions (
'encrypt-dir=s' => \$encrypt_dir, # Encrypt files in this directory.
'decrypt-dir=s' => \$decrypt_dir, # Decrypt files in this directory.
'sign-dir=s' => \$sign_dir, # Sign files in this directory.
'verify-dir=s' => \$verify_dir, # Verify files in this directory.
'gnupg-dir=s' => \$gpg_homedir, # Path to /path/to/.gnupg directory.
'pw-file=s' => \$pw_file, # Read password out of this file.
'agent' => \$use_gpg_agent, # Use gpg-agent for passwords.
'Agent-info=s' => \$gpg_agent_info, # Specify GnuPG agent connection
# information.
'Wipe' => \$wipe_mode, # Securely delete unencrypted files.
'wipe-path=s' => \$wipe_cmd, # Path to wipe command.
'wipe-interactive' => \$wipe_interactive, # Disable "wipe -I"
'wipe-cmdline=s' => \$wipe_cmdline, # Specify wipe command line.
'Obfuscate-filenames' => \$obfuscate_mode, # substitute real filenames
# with manufactured ones.
'obfuscate-map-file=s' => \$obfuscate_map_file, # path to mapping file.
'Force' => \$force_mode, # Continue if files can't be deleted.
'overwrite-encrypted' => \$overwrite_encrypted, # Overwrite encrypted files
# even if they exist.
'overwrite-decrypted' => \$overwrite_decrypted, # Overwrite decrypted files
# even if they exist.
'Exclude=s' => \@exclude_patterns, # Exclude a pattern from encrypt/decrypt
# cycle.
'Exclude-from=s' => \$exclude_file, # Exclude patterns in <file> from
# encrypt decrypt cycle.
'Include=s' => \@include_patterns, # Specify a pattern used to restrict
# encrypt/decrypt operation to.
'Include-from=s' => \$include_file, # Specify a file of include patterns to
# restrict all encrypt/decrypt
# operations to.
'test-mode' => \$test_and_exit, # Run encrypt -> decrypt test only and
# exit.
'Trial-run' => \$trial_run, # Don't modify any files; just show what
# would have happened.
'quiet' => \$quiet, # Print as little as possible to
# stdout.
'Interactive' => \$interactive_mode, # Query the user before encrypting/
# decrypting/deleting any files.
'Key-id=s' => \$encrypt_user, # Specify encrypt/decrypt key
'Default-key' => \$use_default_key, # Assume that default-key is set within
# ~/.gnupg/options.
'Symmetric' => \$symmetric_mode, # encrypt using symmetric cipher.
# (this option is not required to
# also decrypt, GnuPG handles
# that automatically).
'Plain-ascii' => \$ascii_armor_mode, # Ascii armor mode (creates non-binary
# encrypted files).
'skip-test' => \$skip_test_mode, # Skip encrypt -> decrypt test.
'no-recurse' => \$norecurse, # Don't encrypt/decrypt files in
# subdirectories.
'no-delete' => \$no_delete, # Don't delete files once they have
# been encrypted.
'no-password' => \$cmdline_no_password, # Do not query for a password (only
# useful for when the gpg literally
# has no password).
'user-homedir=s' => \$homedir, # Path to home directory.
'no-preserve-times' => \$no_fs_times, # Don't preserve mtimes or atimes.
'LC_ALL=s' => \$locale,
'locale=s' => \$locale, # synonym
'no-LC_ALL' => \$no_locale,
'no-locale' => \$no_locale, # synonym
'Lib-dir=s' => \$lib_dir, # Path to perl module path
'verbose' => \$verbose, # Verbose mode.
'Version' => \$printver, # Print version
'help' => \$help # Print help
));
&usage_and_exit() if $help;
### set LC_ALL env variable
$ENV{'LC_ALL'} = $locale unless $no_locale;
print "[+] gpgdir v$version by Michael Rash <mbr\@cipherdyne.org>\n"
and exit 0 if $printver;
if ($symmetric_mode and ($use_gpg_agent or $gpg_agent_info)) {
die "[*] gpg-agent incompatible with --Symmetric mode";
}
die "[*] Cannot --sign-dir and --verify-dir"
if $sign_dir and $verify_dir;
if ($sign_dir) {
$encrypt_dir = $sign_dir;
$signing_mode = 1;
} elsif ($verify_dir) {
$decrypt_dir = $verify_dir;
$verify_mode = 1;
}
if ($encrypt_dir and $overwrite_decrypted) {
die "[*] The -e and --overwrite-decrypted options are incompatible.";
}
if ($decrypt_dir and $overwrite_encrypted) {
die "[*] The -d and --overwrite-encrypted options are incompatible.";
}
### import perl modules (GnuPG::Interface, etc.)
&import_perl_modules();
if ($wipe_mode) {
unless (-e $wipe_cmd) {
die "[*] Can't find wipe command at: $wipe_cmd,\n",
" use --wipe-path to specify path.";
}
unless (-e $wipe_cmd) {
die "[*] Can't execute $wipe_cmd";
}
}
my $initial_dir = cwd or die "[*] Could not get CWD: $!";
if ($gpg_homedir) {
### it was specified on the comamnd line
if ($gpg_homedir !~ m|^/|) {
$gpg_homedir = $initial_dir . '/' . $gpg_homedir;
}
}
### build up GnuPG options hash
if ($verbose) {
%options = ('homedir' => $gpg_homedir);
} else {
%options = (
'batch' => 1,
'homedir' => $gpg_homedir
);
}
$options{'armor'} = 1 if $ascii_armor_mode or $signing_mode;
### get the path to the user's home directory
$homedir = &get_homedir() unless $homedir;
unless ($symmetric_mode) {
unless ($gpg_homedir) {
$gpg_homedir = "${homedir}/.gnupg"
if -d "${homedir}/.gnupg";
}
unless (-d $gpg_homedir) {
die "[*] GnuPG directory: $gpg_homedir does not exist. Please\n",
" create it by executing: \"gpg --gen-key\". Exiting.\n";
}
### get the key identifier from ~/.gnupg
$encrypt_user = &get_key() unless $encrypt_user or $use_default_key;
}
if ($decrypt_dir and $encrypt_dir) {
die "[*] Cannot encrypt and decrypt the same directory, see --help\n";
}
unless ($decrypt_dir or $encrypt_dir or $test_and_exit) {
die "[*] Please specify -e <dir>, -d <dir>, or --test-mode, see --help\n";
}
if ($obfuscate_mode) {
if ($sign_dir) {
die "[*] -O mode incompatible with --sign-dir";
} elsif ($verify_dir) {
die "[*] -O mode incompatible with --verify-dir";
}
}
### exclude file pattern
if ($exclude_file) {
open P, "< $exclude_file" or die "[*] Could not open file: $exclude_file";
my @lines = <P>;
close P;
for my $line (@lines) {
next unless $line =~ /\S/;
chomp $line;
push @exclude_patterns, qr{$line};
}
}
if ($include_file) {
open P, "< $include_file" or die "[*] Could not open file: $include_file";
my @lines = <P>;
close P;
for my $line (@lines) {
next unless $line =~ /\S/;
chomp $line;
push @include_patterns, qr{$line};
}
}
if ($encrypt_dir) {
$op_dir = $encrypt_dir;
$encrypt_mode = 1;
} elsif ($decrypt_dir) {
$op_dir = $decrypt_dir;
$encrypt_mode = 0;
}
if ($op_dir) {
die "[*] Directory does not exist: $op_dir" unless -e $op_dir;
die "[*] Not a directory: $op_dir" unless -d $op_dir;
}
### don't need to test encrypt/decrypt ability if we are running
### in --Trial-run mode.
$skip_test_mode = 1 if $trial_run or $signing_mode or $verify_mode;
if ($op_dir eq '.') {
$op_dir = $initial_dir;
} elsif ($op_dir !~ m|^/|) {
$op_dir = $initial_dir . '/' . $op_dir;
}
$op_dir =~ s|/$||; ### remove any trailing slash
### make sure another gpgdir process is not trying to operate
### on the same directory
$pid_file = "$op_dir/.gpgdir.pid";
&unique_pid();
&write_pid();
if ($symmetric_mode or $signing_mode) {
&get_password();
} else {
&get_password() unless (($encrypt_mode and $skip_test_mode)
or $verify_mode);
}
### run a test to make sure gpgdir and encrypt and decrypt a file
unless ($skip_test_mode) {
my $rv = &test_mode();
if ($test_and_exit) {
&rm_pid();
exit $rv;
}
}
if ($signing_mode) {
print "[+] Signing files in directory: $op_dir\n" unless $quiet;
} elsif ($encrypt_mode) {
print "[+] Encrypting files in directory: $op_dir\n" unless $quiet;
} elsif ($verify_mode) {
print "[+] Verifying signatures in directory: $op_dir\n" unless $quiet;
} else {
print "[+] Decrypting files in directory: $op_dir\n" unless $quiet;
}
if ($obfuscate_mode and not $encrypt_mode) {
&obfuscate_restore_dirs();
}
### build a hash of file paths to work against
&get_files($op_dir);
### perform the gpg operation (encrypt/decrypt)
&gpg_operation();
if ($obfuscate_mode) {
&obfuscated_mapping_files();
&obfuscated_mapping_directories() if $encrypt_mode;
}
unless ($obfuscate_mode) {
if ($have_obfuscated_file) {
print "[-] Obfuscated filenames detected, try decrypting with -O\n"
unless $quiet;
}
}
if ($signing_mode) {
print "[+] Total number of files signed: " .
"$total_encrypted\n" unless $quiet;
} elsif ($encrypt_mode) {
print "[+] Total number of files encrypted: " .
"$total_encrypted\n" unless $quiet;
} elsif ($verify_mode) {
print "[+] Total number of files verified: " .
"$total_decrypted\n" unless $quiet;
} else {
print "[+] Total number of files decrypted: " .
"$total_decrypted\n" unless $quiet;
}
&rm_pid();
exit 0;
#==================== end main =====================
sub encrypt_or_sign_file() {
my ($in_file, $out_file, $del_flag) = @_;
my $gpg = GnuPG::Interface->new();
$gpg->options->hash_init(%options);
&cleanup("[*] Could not create new gpg object with " .
"homedir: $gpg_homedir") unless $gpg;
unless ($symmetric_mode or $use_default_key) {
$gpg->options->default_key($encrypt_user);
$gpg->options->push_recipients($encrypt_user);
}
my ($input_fh, $output_fh, $error_fh, $pw_fh, $status_fh) =
(IO::File->new($in_file),
IO::File->new("> $out_file"),
IO::Handle->new(),
IO::Handle->new(),
IO::Handle->new());
my $handles = GnuPG::Handles->new(
stdin => $input_fh,
stdout => $output_fh,
stderr => $error_fh,
passphrase => $pw_fh,
status => $status_fh
);
$handles->options('stdin')->{'direct'} = 1;
$handles->options('stdout')->{'direct'} = 1;
unless (defined $input_fh
and defined $output_fh
and defined $error_fh
and defined $pw_fh
and defined $status_fh) {
return 0;
}
my $pid;
if ($use_gpg_agent or $gpg_agent_info) {
### set environment explicitly if --Agent was specified
if ($gpg_agent_info) {
$ENV{'GPG_AGENT_INFO'} = $gpg_agent_info;
}
$pid = $gpg->encrypt('handles' => $handles,
'command_args' => [ qw( --use-agent ) ]);
} else {
if ($symmetric_mode) {
$pid = $gpg->encrypt_symmetrically('handles' => $handles);
} elsif ($signing_mode) {
$pid = $gpg->detach_sign('handles' => $handles);
} else {
$pid = $gpg->encrypt('handles' => $handles);
}
}
print $pw_fh $pw;
close $pw_fh;
my @errors = <$error_fh>;
close $error_fh;
my @status = <$status_fh>;
close $status_fh;
close $input_fh;
close $output_fh;
waitpid $pid, 0;
if ($verbose) {
print for @errors;
} else {
for (@errors) {
print if /bad\s+pass/;
}
}
unless (-e $out_file) {
&cleanup("[*] $out_file does not exist.");
}
if (-s $out_file == 0) {
&delete_file($out_file);
&delete_file($in_file) if $del_flag == $DEL_SOURCE_FILE;
if ($use_gpg_agent) {
&cleanup("[*] Created zero-size file: $out_file\n" .
" Maybe gpg-agent does not yet have the password for that key?\n" .
" Try with --verbose");
} else {
&cleanup("[*] Created zero-size file: $out_file\n" .
" Bad password? Try with --verbose");
}
}
return 1;
}
sub decrypt_or_verify_file() {
my ($in_file, $out_file, $del_flag) = @_;
my $pid;
my $bad_passphrase = 0;
my $bad_signature = 0;
my $file_encrypted_with_expected_key = 0;
my $input_fh = '';
my $output_fh = '';
my $error_fh = '';
my $pw_fh = '';
my $status_fh = '';
my $handles = '';
my $gpg = GnuPG::Interface->new();
$gpg->options->hash_init(%options);
&cleanup("[*] Could not create new gpg object with " .
"homedir: $gpg_homedir") unless $gpg;
unless ($verify_mode or $symmetric_mode or $use_default_key) {
$gpg->options->default_key($encrypt_user);
$gpg->options->push_recipients($encrypt_user);
}
if ($verify_mode) {
($input_fh, $output_fh, $error_fh, $status_fh) =
(IO::Handle->new(),
IO::Handle->new(),
IO::Handle->new(),
IO::Handle->new());
$handles = GnuPG::Handles->new(
stdin => $input_fh,
stdout => $output_fh,
stderr => $error_fh,
status => $status_fh
);
} else {
($input_fh, $output_fh, $error_fh, $pw_fh, $status_fh) =
(IO::File->new($in_file),
IO::File->new("> $out_file"),
IO::Handle->new(),
IO::Handle->new(),
IO::Handle->new());
$handles = GnuPG::Handles->new(
stdin => $input_fh,
stdout => $output_fh,
stderr => $error_fh,
passphrase => $pw_fh,
status => $status_fh
);
$handles->options('stdin')->{'direct'} = 1;
$handles->options('stdout')->{'direct'} = 1;
}
if ($use_gpg_agent) {
$pid = $gpg->decrypt('handles' => $handles,
'command_args' => [ qw( --use-agent ) ]);
} else {
if ($verify_mode) {
$pid = $gpg->wrap_call(
'commands' => [ qw( --verify ) ],
'command_args' => [ ( $in_file ) ],
'handles' => $handles
);
} else {
$pid = $gpg->decrypt('handles' => $handles);
}
}
unless ($verify_mode) {
print $pw_fh $pw;
close $pw_fh;
}
my @errors = <$error_fh>;
close $error_fh;
my @status = <$status_fh>;
close $status_fh;
close $input_fh;
close $output_fh;
waitpid $pid, 0;
for (@status) {
if ($verify_mode) {
### [GNUPG:] BADSIG 9EEEEE6BEE428EEE Some User <[email protected]>
$bad_signature = 1 if /BADSIG/;
} else {
### [GNUPG:] BAD_PASSPHRASE C326F95CE133EA4E
$bad_passphrase = 1 if /BAD_?PASS/;
if (/NEED_PASSPHRASE\s\S+\s+\S+$encrypt_user\s/) {
### [GNUPG:] NEED_PASSPHRASE CDE4D7DDFD66DCB9 95D85DDDDD42D39D 16 0
$file_encrypted_with_expected_key = 1;
} elsif ((length($encrypt_user) == 8)
and /USERID_HINT\s+.*$encrypt_user/) {
$file_encrypted_with_expected_key = 1;
}
}
}
if ($verbose) {
print " GnuPG errors:\n";
print for @errors;
print " GnuPG status:\n";
print for @status;
} else {
for (@status) {
if (/BAD_?PASS/) {
print unless $quiet;
} elsif (/BADSIG/) {
print unless $quiet;
}
}
}
if ($bad_passphrase) {
if (-s $out_file == 0) {
&delete_file($out_file);
&delete_file($in_file) if $del_flag == $DEL_SOURCE_FILE;
if ($file_encrypted_with_expected_key) {
&cleanup("[*] Bad passphrase, try gpgdir with -v");
} else {
print "[-] Skipping file encrypted with different ",
"GnuPG key: $in_file\n" unless $quiet;
}
} else {
die
"[*] Bad passphrase, but created non-zero sized output file, should not\n",
" happen. Try with --verbose";
}
} elsif (-s $out_file == 0) {
&delete_file($out_file);
&delete_file($in_file) if $del_flag == $DEL_SOURCE_FILE;
if ($use_gpg_agent) {
&cleanup("[*] Created zero-size file: $out_file\n" .
" Maybe gpg-agent does not yet have the password for that key?\n" .
" Try with --verbose");
} else {
&cleanup("[*] Created zero-size file: $out_file\n" .
" Bad password? Try with --verbose");
}
}
if ($bad_signature) {
return 0;
}
return 1;
}
sub delete_file() {
my $file = shift;
return if $no_delete;
return unless -e $file;
if ($wipe_mode) {
my $cmd = $wipe_cmd;
if ($wipe_cmdline) {
$cmd .= " $wipe_cmdline ";
} else {
if ($wipe_interactive) {
$cmd .= ' -i ';
} else {
$cmd .= ' -f -s ';
}
}
$cmd .= qq|"$file"|;
if ($verbose) {
print " Executing: $cmd\n";
}
### wipe the file
system $cmd;
} else {
unlink $file;
}
if (-e $file) {
my $msg = "[-] Could not delete file: $file\n";
if ($force_mode) {
print $msg unless $quiet;
} else {
&cleanup($msg) unless $quiet;
}
}
return;
}
sub gpg_operation() {
### sort by oldest to youngest mtime
FILE: for my $file (sort
{$files{$a}{'mtime'} <=> $files{$b}{'mtime'}} keys %files) {
### see if we have an exclusion pattern that implies
### we should skip this file
if (@exclude_patterns and &exclude_file($file)) {
print "[+] Skipping excluded file: $file\n"
if $verbose and not $quiet;
next FILE;
}
### see if we have an inclusion pattern that implies
### we should process this file
if (@include_patterns and not &include_file($file)) {
print "[+] Skipping non-included file: $file\n"
if $verbose and not $quiet;
next FILE;
}
### dir is always a full path
my ($dir, $filename) = ($file =~ m|(.*)/(.*)|);
unless (chdir($dir)) {
print "[-] Could not chdir $dir, skipping.\n" unless $quiet;
next FILE;
}
my $mtime = $files{$file}{'mtime'};
my $atime = $files{$file}{'atime'};
if ($encrypt_mode) {
&do_encrypt($dir, $file, $filename, $mtime, $atime);
} else {
&do_decrypt($dir, $file, $filename, $mtime, $atime);
}
}
print "\n" unless $quiet;
chdir $initial_dir or &cleanup("[*] Could not chdir: $initial_dir\n");
return;
}
sub do_encrypt() {
my ($dir, $file, $filename, $mtime, $atime) = @_;
my $encrypt_filename = "$filename.gpg";
if ($obfuscate_mode) {
unless (defined $obfuscate_ctrs{$dir}) {
### create a new gpgdir mapping file for obfuscated file
### names, but preserve any previously encrypted file
### name mappings, and ensure no conflicts if a new file
### with the same name as an old one is created in a
### previously encrypted directory
my $previous_obf_files = &handle_old_obfuscated_map_file();
if (defined $previous_obf_files->{$filename}) {
print "[-] Previous file $filename exists, skipping.\n"
unless $quiet;
return;
}
### make obfuscated file names start at 1 for each
### directory
$obfuscate_ctrs{$dir} = 1;
}
$encrypt_filename = 'gpgdir_' . $obfuscate_ctrs{$dir} . '.gpg';
### if a file has been added to a previously encrypted directory
### (encrypted with -O), then find the next 'gpgdir_<num>' file
while (-e $encrypt_filename) {
$obfuscate_ctrs{$dir}++;
$encrypt_filename = 'gpgdir_' . $obfuscate_ctrs{$dir} . '.gpg';
}
} elsif ($ascii_armor_mode or $signing_mode) {
$encrypt_filename = "$filename.asc";
}
if (-e $encrypt_filename and not $overwrite_encrypted) {
my $str = 'Encrypted';
$str = 'Signed' if $signing_mode;
print "[-] $str file $dir/$encrypt_filename already ",
"exists, skipping.\n" unless $quiet;
return;
}
if ($interactive_mode) {
my $str = 'Encrypt';
$str = 'Sign' if $signing_mode;
return unless (&query_yes_no(
" $str: $file ([y]/n)? ", $ACCEPT_YES_DEFAULT));
}
my $str = 'Encrypting';
$str = 'Signing' if $signing_mode;
print "[+] $str: $file\n" unless $quiet;
unless ($trial_run) {
my $rv = &encrypt_or_sign_file($filename, $encrypt_filename,
$NO_DEL_SOURCE_FILE);
if ($rv and -e $encrypt_filename and -s $encrypt_filename != 0) {
### set the atime and mtime to be the same as the
### original file.
unless ($no_fs_times) {
if (defined $mtime and $mtime and
defined $atime and $atime) {
utime $atime, $mtime, $encrypt_filename;
}
}
unless ($signing_mode) {
### only delete the original file if
### the encrypted one exists
if ($wipe_mode and not $quiet) {
print " Securely deleting file: $file\n";
}
&delete_file($filename);
if ($obfuscate_mode) {
### record the original file name mapping
&append_obfuscated_mapping($filename,
$encrypt_filename);
$obfuscate_ctrs{$dir}++;
}
}
$total_encrypted++;
} else {
my $str = 'encrypt';
$str = 'sign' if $signing_mode;
print "[-] Could not $str file: $file\n" unless $quiet;
return;
}
}
return;
}
sub do_decrypt() {
my ($dir, $file, $filename, $mtime, $atime) = @_;
### allow filenames with spaces
my $decrypt_filename = '';
if ($filename =~ /^(.+)\.gpg$/) {
$decrypt_filename = $1;
} elsif ($filename =~ /^(.+)\.asc$/) {
$decrypt_filename = $1;
} elsif ($filename =~ /^(.+)\.pgp$/) {
$decrypt_filename = $1;
}
if ($obfuscate_mode) {
&import_obfuscated_file_map($dir)
unless defined $obfuscated_dirs{$dir};
if (defined $obfuscated_dirs{$dir}{$filename}) {
$decrypt_filename = $obfuscated_dirs{$dir}{$filename};
} else {
print "[-] Obfuscated file map does not exist for ",
"$filename in $dir/\n $obfuscate_map_file, ",
"skipping.\n" unless $quiet;
return;
}
} else {
if (not $force_mode and ($file =~ /gpgdir_\d+_\d+\.gpg/
or $file =~ /gpgdir_\d+\.gpg/)) {
### be careful not to decrypt obfuscated file unless we
### are running in -O mode. This ensures that the
### original file names will be acquired from the
### /some/dir/.gpgdir_map_file
$have_obfuscated_file = 1;
return;
}
}
### length() allows files named "0"
return unless length($decrypt_filename) > 0;
if ($verify_mode) {
unless (-e $decrypt_filename) {
print "[-] Original file $decrypt_filename ",
"does not exist, skipping.\n";
return;
}
} else {
### don't decrypt a file on top of a normal file of
### the same name
if (-e $decrypt_filename and not $overwrite_decrypted) {
print "[-] Decrypted file $dir/$decrypt_filename ",
"already exists. Skipping.\n" unless $quiet;
return;
}
}
if ($interactive_mode) {
my $str = 'Decrypt';
$str = 'Verify' if $verify_mode;
return unless (&query_yes_no(
" $str: $file ([y]/n)? ", $ACCEPT_YES_DEFAULT));
}
unless ($trial_run) {
my $str = 'Decrypting';
$str = 'Verifying' if $verify_mode;
print "[+] $str: $dir/$filename\n" unless $quiet;
my $rv = &decrypt_or_verify_file($filename, $decrypt_filename,
$NO_DEL_SOURCE_FILE);
if ($verify_mode) {
$total_decrypted++ if $rv;
} else {
if (-e $decrypt_filename and -s $decrypt_filename != 0) {
### set the atime and mtime to be the same as the
### original file.
unless ($no_fs_times) {
if (defined $mtime and $mtime and
defined $atime and $atime) {
utime $atime, $mtime, $decrypt_filename;
}
}
if ($wipe_mode and not $quiet) {
print " Securely deleting file: $file\n";
}
### only delete the original encrypted
### file if the decrypted one exists
&delete_file($filename);
$total_decrypted++;
} else {
print "[-] Could not decrypt file: $file\n"
unless $quiet;
return;
}
}
}
return;
}
sub get_files() {
my $dir = shift;
print "[+] Building file list...\n" unless $quiet;
if ($norecurse) {
opendir D, $dir or &cleanup("[*] Could not open $dir: $!");
my @files = readdir D;
closedir D;
for my $file (@files) {
next if $file eq '.';
next if $file eq '..';
&check_file_criteria("$dir/$file");
}
} else {
### get all files in all subdirectories
find(\&find_files, $dir);
}
return;
}
sub exclude_file() {
my $file = shift;
for my $pat (@exclude_patterns) {
if ($file =~ m|$pat|) {
print "[+] Skipping $file (matches exclude pattern: $pat)\n"
if $verbose and not $quiet;
return 1;
}
}
return 0;
}
sub include_file() {
my $file = shift;
for my $pat (@include_patterns) {
if ($file =~ m|$pat|) {
print "[+] Including $file (matches include pattern: $pat)\n"
if $verbose and not $quiet;
return 1;
}
}
return 0;