-
Notifications
You must be signed in to change notification settings - Fork 9
/
courier-dovecot-migrate.pl
executable file
·1083 lines (935 loc) · 33.1 KB
/
courier-dovecot-migrate.pl
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
# Copyright 2008-2002 Timo Sirainen
# Last updated: 2021-11-10
# NOTE: Requires Dovecot v2.0.13+ for POP3 'O' entries
# Based largely on courier-dovecot-migrate.pl v1.1.8:
# cpanel12 - maildir-migrate Copyright(c) 2008 cPanel, Inc.
# All Rights Reserved.
# [email protected] http://cpanel.net
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the cPanel, Inc. nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY CPANEL, INC. "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL CPANEL, INC BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
use strict;
use warnings;
use Getopt::Long ();
# Key files in maildirs
my $courier_imap_uidfile = 'courierimapuiddb';
my $courier_pop3_uidfile = 'courierpop3dsizelist';
my $courier_subscriptions_file = 'courierimapsubscribed';
my $courier_keywords_dir = 'courierimapkeywords/';
my $courier_keywords_file = 'courierimapkeywords/:list';
my $dovecot_uidfile = 'dovecot-uidlist';
my $dovecot_uidvalidity_file = 'dovecot-uidvalidity';
my $dovecot_subscriptions_file = 'subscriptions';
my $dovecot_keywords_file = 'dovecot-keywords';
# Globals
my $do_conversion = 0;
my $quiet = 0;
my $recursive = 0;
my $overwrite = 0;
my $depth = 1;
my $maildir_subdirs = -1;
my $global_error_count = 0;
my $global_mailbox_count = 0;
my $global_user_count = 0;
my $uidlist_write_count = 0;
my $convert_to_dovecot = 0;
my $convert_to_courier = 0;
my $help = 0;
my $maildir_name = 'Maildir';
# Argument processing
my %opts = (
'convert' => \$do_conversion,
'quiet' => \$quiet,
'overwrite' => \$overwrite,
'recursive' => \$recursive,
'to-dovecot' => \$convert_to_dovecot,
'to-courier' => \$convert_to_courier,
'help' => \$help,
);
Getopt::Long::GetOptions(%opts);
usage() if $help;
my $mailroot = shift @ARGV || '.';
my $conversion_type;
if ( $convert_to_dovecot && $convert_to_courier ) {
print "It is not possible to convert to both Dovecot and Courier formats simultaneously!\n";
exit 1;
}
else {
print $do_conversion ? 'Converting' : 'Testing conversion' unless $quiet;
if ($convert_to_courier) {
print " to Courier format\n" unless $quiet;
$conversion_type = 'courier';
}
elsif ($convert_to_dovecot) {
print " to Dovecot format\n" unless $quiet;
$conversion_type = 'dovecot';
}
else {
print " based on newest timestamps\n" unless $quiet;
$conversion_type = 'auto';
}
}
# Check/Convert maildirs
print "Finding maildirs under $mailroot\n" if ( !$quiet );
if ( is_maildir($mailroot) ) {
check_maildir($mailroot);
}
elsif ( -d "$mailroot/$maildir_name" ) {
if ( !is_maildir("$mailroot/$maildir_name") ) {
print STDERR "$mailroot/$maildir_name doesn't seem to contain a valid Maildir\n";
}
else {
check_maildir("$mailroot/$maildir_name");
}
}
elsif ($recursive) {
if ( $depth > 0 || !userdir_check($mailroot) ) {
$depth-- if ( $depth > 0 );
if ( !depth_check( $mailroot, $depth ) ) {
print STDERR "No maildirs found\n";
exit;
}
}
}
# Totals
if ( !$quiet ) {
print "\nTotal: $global_mailbox_count mailboxes / $global_user_count users\n";
print " $global_error_count errors\n";
if ( !$do_conversion ) {
print "No actual conversion done, use --convert parameter\n";
}
else {
print "$uidlist_write_count $dovecot_uidfile files written\n";
}
print "\nWARNING: Badly done migration will cause your IMAP and/or POP3 clients to re-download all mails. Read http://wiki.dovecot.org/Migration carefully.\n";
}
sub scan_maildir {
my ( $dir, $map ) = @_;
my @scan_maildir_files;
if ( opendir my $scan_maildir_dh, $dir ) {
@scan_maildir_files = readdir($scan_maildir_dh);
closedir $scan_maildir_dh;
}
foreach my $real_filename (@scan_maildir_files) {
next if ( $real_filename eq "." || $real_filename eq ".." );
my $base_filename;
if ( $real_filename =~ /^([^:]+):2,/ ) {
$base_filename = $1;
}
else {
$base_filename = $real_filename;
}
$$map{$base_filename} = $real_filename;
}
}
sub read_courier_pop3 {
my ( $dir ) = @_;
my ( $pop3_uidv, $pop3_nextuid ) = ( -1, 0 );
my $filename_map = {};
my $f;
my $pop3_fname = "$dir/$courier_pop3_uidfile";
open( $f, $pop3_fname ) || die $!;
my $pop3_hdr = <$f>;
if ( $pop3_hdr =~ /^\/2 (\d+) (\d+)$/ ) {
# /2 <next uid> <uidvalidity>
$_ = <$f>;
}
elsif ( $pop3_hdr =~ /^\/3 (\d+) (\d+)$/ ) {
# /3 <next uid> <uidvalidity>
$_ = <$f>;
}
elsif ( $pop3_hdr =~ /^\/1 (\d+)$/ ) {
# /1 <next uid>
$_ = <$f>;
}
elsif ( $pop3_hdr !~ /^\// ) {
# version 0: no UIDs
$_ = $pop3_hdr;
}
else {
print STDERR "$pop3_fname: Broken header: $pop3_hdr\n";
close $f;
return $filename_map;
}
my $line = 0;
do {
chomp $_;
$line++;
my ( $full_fname, $fsize, $uid, $uidv );
if ( /^([^ ]+) (\d+) (\d+):(\d+):\d$/ ) {
# v3
( $full_fname, $fsize, $uid, $uidv ) = ( $1, $2, $3, $4 );
}
elsif ( /^([^ ]+) (\d+) (\d+):(\d+)$/ ) {
# v2
( $full_fname, $fsize, $uid, $uidv ) = ( $1, $2, $3, $4 );
}
elsif ( /^([^ ]+) (\d+) (\d+)$/ ) {
# v1
( $full_fname, $fsize, $uid ) = ( $1, $2, $3 );
$uidv = 0;
}
elsif ( /^([^ ]+) (\d+)$/ ) {
# v0
( $full_fname, $fsize ) = ( $1, $2 );
$uid = 0;
$uidv = 0;
}
else {
$global_error_count++;
print STDERR "$pop3_fname: Broken line: $_\n";
next;
}
# get base filename
my $fname = $full_fname;
$fname =~ s/^([^:]+).*$/$1/;
my $uidl = "";
if ( $uid == 0 ) {
# use filename
foreach (split(//, $fname)) {
if (ord($_) < 0x21 || ord($_) > 0x7e || $_ eq "'" || $_ eq '"' || $_ eq "+") {
$uidl .= sprintf("+%02X", ord($_));
} else {
$uidl .= $_;
}
}
}
elsif ($uidv != 0) {
$uidl = "UID$uid-$uidv";
}
else {
$uidl = "UID$uid";
}
$filename_map->{$fname} = [ 0, $uidl, $fsize, $full_fname, $line ];
} while (<$f>);
close $f;
return $filename_map;
}
sub read_courier_imap {
my ( $dir, $filename_map ) = @_;
# check if we can preserve IMAP UIDs
my $imap_fname = "$dir/$courier_imap_uidfile";
if ( !-f $imap_fname ) {
print "$imap_fname: OK\n" if ( !$quiet );
return;
}
my $f;
open( $f, $imap_fname ) || die $!;
my $imap_hdr = <$f>;
if ( $imap_hdr !~ /^1 (\d+) (\d+)$/ ) {
$global_error_count++;
print STDERR "$imap_fname: Broken header: $imap_hdr\n";
close $f;
return;
}
my ( $uidv, $nextuid ) = ( $1, $2 );
my %found_files;
my $found_files_looked_up = 0;
while (<$f>) {
chomp $_;
if (/^(\d+) (.*)$/) {
my ( $uid, $full_fname ) = ( $1, $2 );
# get the base filename
my $fname = $full_fname;
$fname =~ s/^([^:]+).*$/$1/;
if ( defined $filename_map->{$fname} ) {
$filename_map->{$fname}->[0] = $uid;
}
else {
# not in pop3 list
$filename_map->{$fname} = [ $uid, "", 0, $full_fname, 0 ];
}
$nextuid = $uid + 1 if ($uid >= $nextuid);
}
else {
$global_error_count++;
print STDERR "$imap_fname: Broken header\n";
}
}
close $f;
return ( $uidv, $nextuid, $filename_map );
}
sub write_dovecot_uidlist {
my ( $dir, $uidv, $nextuid, $owner_uid, $owner_gid, $filename_map ) = @_;
my $uidlist_fname = "$dir/$dovecot_uidfile";
if ( !$overwrite && -f $uidlist_fname ) {
print "$uidlist_fname already exists, not overwritten\n" if ( !$quiet );
return;
}
return if (scalar keys %{$filename_map} == 0);
return if ( !$do_conversion );
if ($uidv <= 0) {
# only pop3 UIDLs, generate a new uidvalidity
$uidv = time();
}
# POP3 clients may want to get POP3 UIDLs in the same order always.
# Preserve the order with O flag supported in dovecot 2.0.13+ and dont change order of IMAP UIDs.
my %order_map;
foreach my $fname ( keys %{$filename_map} ) {
my $order = $filename_map->{$fname}->[4];
$filename_map->{$fname}->[5]=$order;
}
my $prev_uid = 0;
foreach my $order ( sort { $a <=> $b } keys %order_map ) {
my $file_ar = $filename_map->{ $order_map{$order} };
if ($file_ar->[0] == 0) {
$file_ar->[0] = $nextuid;
$nextuid++;
}
if ($file_ar->[0] <= $prev_uid) {
$file_ar->[0] = 0;
} else {
$prev_uid = $file_ar->[0];
}
}
# sort all messages by their imap UID
my @all = sort {
($filename_map->{$a}[0] || 'inf') <=> ($filename_map->{$b}[0] || 'inf')
} keys %$filename_map;
$prev_uid = 0;
my %uidlist_map;
foreach my $fname ( @all ) {
my $file_ar = $filename_map->{ $fname };
my $uid = $file_ar->[0];
if ($uid == 0 # only in pop3 list or marked for new UID
# OR: other ill-ordered UID message
|| $uid <= $prev_uid)
{
# Assign a new IMAP UID:
$uid = $nextuid;
$nextuid++;
}
$prev_uid = $uid;
$uidlist_map{$uid} = $fname;
}
open( my $dovecot_uidlist_fh, '>', $uidlist_fname ) || die $!;
print $dovecot_uidlist_fh "3 V$uidv N$nextuid\n";
foreach my $uid ( sort { $a <=> $b } keys %uidlist_map ) {
my $file_ar = $filename_map->{ $uidlist_map{$uid} };
print $dovecot_uidlist_fh "$uid ";
if ($file_ar->[5]) {
print $dovecot_uidlist_fh "O".$file_ar->[5]." ";
}
print $dovecot_uidlist_fh 'P' . $file_ar->[1] . ' ' if ( $file_ar->[1] ne "" );
print $dovecot_uidlist_fh 'W' . $file_ar->[2] . ' ' if ( $file_ar->[2] > 0 );
print $dovecot_uidlist_fh ':' . $file_ar->[3] . "\n";
}
close $dovecot_uidlist_fh;
chown $owner_uid, $owner_gid, $uidlist_fname;
$uidlist_write_count++;
}
sub convert_keywords {
my ( $dir, $owner_uid, $owner_gid ) = @_;
my $courier_mtime = ( stat("$dir/$courier_keywords_file") )[9] || 0;
my $dovecot_mtime = ( stat("$dir/$dovecot_keywords_file") )[9] || 0;
# No need to convert if there are no keywords files
return unless ( $courier_mtime || $dovecot_mtime );
# If we're doing auto-conversion, find the newest keywords file
my $convert_to = $conversion_type;
if ( $convert_to eq 'auto' ) {
$convert_to = $dovecot_mtime > $courier_mtime ? 'courier' : 'dovecot';
}
if ( $convert_to eq 'dovecot' ) {
# Courier to Dovecot keyword conversion
my $keyword_dir = "$dir/courierimapkeywords";
my $dovecot_keyfname = "$dir/dovecot-keywords";
if ( !-f "$keyword_dir/:list" ) {
# no keywords
return;
}
if ( !$overwrite && -f $dovecot_keyfname ) {
print "$dovecot_keyfname already exists, not overwritten\n" if ( !$quiet );
return;
}
my ( %keywords, %files );
my $f;
open( $f, "$keyword_dir/:list" ) || die $!;
# read keyword names
while (<$f>) {
chomp $_;
last if (/^$/);
$keywords{$_} = scalar keys %keywords;
}
# read filenames -> keywords mapping
while (<$f>) {
if (/([^:]+):([\d ]+)$/) {
my $fname = $1;
foreach ( sort { $a <=> $b } split( " ", $2 ) ) {
$files{$fname} .= chr( 97 + $_ );
}
}
else {
print STDERR "$keyword_dir/:list: Broken entry: $_\n";
}
}
close $f;
# read updates from the directory
my %updates;
my @update_files;
if ( opendir my $kw_dh, $keyword_dir ) {
@update_files = readdir($kw_dh);
closedir $kw_dh;
}
foreach (@update_files) {
next if ( $_ eq ":list" || $_ eq "." || $_ eq ".." );
my $fname = $_;
if (/^\.(\d+)\.(.*)$/) {
my ( $num, $base_fname ) = ( $1, $2 );
if ( !defined $updates{$fname} ) {
$updates{$fname} = $num;
}
else {
my $old = $updates{$fname};
if ( $old >= 0 && $num > $old ) {
$updates{$fname} = $num;
}
}
}
else {
# "fname" overrides .n.fnames
$updates{$fname} = -1;
}
}
# apply the updates
foreach ( keys %updates ) {
my $base_fname = $_;
my $num = $updates{$_};
my $fname;
if ( $num < 0 ) {
$fname = $base_fname;
}
else {
$fname = ".$num.$base_fname";
}
my @kw_list;
open( $f, "$keyword_dir/$fname" ) || next;
while (<$f>) {
chomp $_;
my $kw = $_;
my $idx;
if ( defined $keywords{$kw} ) {
$idx = $keywords{$kw};
}
else {
$idx = scalar keys %keywords;
$keywords{$kw} = $idx;
}
$kw_list[ scalar @kw_list ] = $idx;
}
close $f;
$files{$fname} = "";
foreach ( sort { $a <=> $b } @kw_list ) {
$files{$fname} .= chr( 97 + $_ );
}
}
return if ( !$do_conversion );
# write dovecot-keywords file
open( $f, ">$dovecot_keyfname" ) || die $!;
foreach ( sort { $keywords{$a} <=> $keywords{$b} } keys %keywords ) {
my $idx = $keywords{$_};
print $f "$idx $_\n";
}
close $f;
chown $owner_uid, $owner_gid, $dovecot_keyfname;
# update the maildir files
my $cur_dir = "$dir/cur";
my @cur_files;
if ( opendir my $cur_dir_dh, $cur_dir ) {
@cur_files = readdir($cur_dir_dh);
closedir $cur_dir_dh;
}
foreach (@cur_files) {
my $fname = $cur_dir . '/' . $_;
my ( $base_fname, $flags, $extra_flags );
if (/^([^:]+):2,([^,]*)(,.*)?$/) {
( $base_fname, $flags, $extra_flags ) = ( $1, $2, $3 );
$extra_flags = "" if ( !defined $extra_flags );
}
else {
$base_fname = $fname;
$flags = "";
$extra_flags = "";
}
if ( defined $files{$base_fname} ) {
# merge old and new flags
my %newflags;
foreach ( sort split( "", $files{$base_fname} ) ) {
$newflags{$_} = 1;
}
foreach ( sort split( "", $flags ) ) {
$newflags{$_} = 1;
}
$flags = "";
foreach ( sort keys %newflags ) {
$flags .= $_;
}
my $new_fname = "$cur_dir/$base_fname:2,$flags$extra_flags";
if ( $fname ne $new_fname ) {
rename( $fname, $new_fname )
|| print STDERR "rename($fname, $new_fname) failed: $!\n";
}
}
}
}
else {
# Dovecot to Courier keywords conversion
return unless $dovecot_mtime;
if ( !$overwrite && -f "$dir/$courier_keywords_file" ) {
print "$courier_keywords_file already exists, not overwritten\n" if ( !$quiet );
return;
}
# Read Dovecot keywords list into memory
open my $dovecot_kw_fh, '<', "$dir/$dovecot_keywords_file" || die $!;
my %keywords;
while ( my $line = readline($dovecot_kw_fh) ) {
chomp $line;
if ( $line =~ /(\d+)\s+(.+)/ ) {
# Number then Keyword
$keywords{$1} = $2;
}
}
close $dovecot_kw_fh;
# Scan files in cur for keywords
my $cur_dir = "$dir/cur";
my %file_keyword_map;
my @cur_files;
if ( opendir my $cur_dir_dh, $cur_dir ) {
@cur_files = readdir($cur_dir_dh);
closedir $cur_dir_dh;
}
foreach my $basename (@cur_files) {
my $flags;
my $extra_flags;
my $keywords = '';
# Split out and process flags
if ( $basename =~ /^([^:]+):2,([^,]*)(,.*)?$/ ) {
( $basename, $flags, $extra_flags ) = ( $1, $2, $3 );
$extra_flags = "" unless ( defined $extra_flags );
}
else {
$basename = "";
$flags = "";
$extra_flags = "";
}
foreach my $key ( sort split( //, $flags ) ) {
my $val = ord($key) - 97;
next unless ( $val >= 0 && $val < 26 );
next unless ( defined $keywords{$val} );
$keywords .= ' ' . $val;
}
if ($keywords) {
$keywords =~ s/^\s+//;
$file_keyword_map{$basename} = $keywords;
}
}
return unless ($do_conversion);
# Make courier keywords directory if necessary
my $key_dir = "$dir/$courier_keywords_dir";
unless ( -d $key_dir ) {
unlink $key_dir;
mkdir $key_dir;
chown $owner_uid, $owner_gid, $key_dir;
}
# Remove any old courier keywords files
my @courier_keywords_files;
if ( opendir my $courier_keywords_dh, $key_dir ) {
@courier_keywords_files = readdir($courier_keywords_dh);
closedir $courier_keywords_dh;
}
foreach my $file (@courier_keywords_files) {
$file = $key_dir . $file;
next unless -f $file;
unlink $file;
}
# Write courier keywords list
return unless ( scalar %keywords );
open my $courier_kw_fh, '>', "$dir/$courier_keywords_file" || die $!;
foreach my $num ( sort keys %keywords ) {
print $courier_kw_fh $keywords{$num} . "\n";
}
print $courier_kw_fh "\n";
foreach my $file ( sort keys %file_keyword_map ) {
print $courier_kw_fh $file . ':' . $file_keyword_map{$file} . "\n";
}
close $courier_kw_fh;
chown $owner_uid, $owner_gid, "$dir/$courier_keywords_file";
}
}
sub convert_subscriptions {
my ( $dir, $owner_uid, $owner_gid ) = @_;
my $courier_mtime = ( stat("$dir/$courier_subscriptions_file") )[9] || 0;
my $dovecot_mtime = ( stat("$dir/$dovecot_subscriptions_file") )[9] || 0;
# No need to convert if there is no subscriptions files
return unless ( $courier_mtime || $dovecot_mtime );
# If we're doing auto-conversion, find the newest subscription file
my $convert_to = $conversion_type;
if ( $convert_to eq 'auto' ) {
$convert_to = $dovecot_mtime > $courier_mtime ? 'courier' : 'dovecot';
}
my $src_file = "$dir/$dovecot_subscriptions_file";
my $dst_file = "$dir/$courier_subscriptions_file";
my $src_mtime = $dovecot_mtime;
my $dst_mtime = $courier_mtime;
if ( $convert_to eq 'dovecot' ) {
$src_file = "$dir/$courier_subscriptions_file";
$dst_file = "$dir/$dovecot_subscriptions_file";
$src_mtime = $courier_mtime;
$dst_mtime = $dovecot_mtime;
}
# Sanity checks..
if ( $dst_mtime && !$overwrite ) {
print "$dst_file already exists, not overwritten\n" if ( !$quiet );
return;
}
if ( $dst_mtime && !-f $dst_file ) {
print "$dst_file already exists as something other than a file\n" if ( !$quiet );
return;
}
unless ($src_mtime) {
return;
}
unless ( -f $src_file ) {
print "$src_file isn't a regular file\n" if ( !$quiet );
return;
}
return unless ($do_conversion);
open( my $src_fh, '<', $src_file ) || die $!;
open( my $dst_fh, '>', $dst_file ) || die $!;
while ( my $line = readline($src_fh) ) {
chomp $line;
if ( $line =~ /^INBOX$/i ) {
print $dst_fh "INBOX\n";
}
elsif ( $convert_to eq 'dovecot' ) {
if ( $line =~ /^INBOX\.(.*)$/i ) {
print $dst_fh "$1\n";
}
else {
# Unknown. The dovecot migrate script leaves these as-is...
print $dst_fh "$line\n";
}
}
else {
# converting to Courier INBOX namespace
if ( $line =~ /\S/ ) {
print $dst_fh "INBOX.$line\n";
}
}
}
close $src_fh;
close $dst_fh;
chown $owner_uid, $owner_gid, $dst_file;
}
sub check_maildir_single {
my ( $dir, $childbox ) = @_;
$dir =~ s{^\./}{}g;
my $owner_uid;
my $owner_gid;
# Store the relevant stats()
my @courier_pop_stat = ();
@courier_pop_stat = stat("$dir/$courier_pop3_uidfile") unless $childbox;
my @courier_imap_stat = stat("$dir/$courier_imap_uidfile");
my @dovecot_stat = stat("$dir/$dovecot_uidfile");
# Gather mtimes
my $courier_pop_mtime = ( scalar @courier_pop_stat > 0 ) ? $courier_pop_stat[9] : 0;
my $courier_imap_mtime = ( scalar @courier_imap_stat > 0 ) ? $courier_imap_stat[9] : 0;
my $dovecot_mtime = ( scalar @dovecot_stat > 0 ) ? $dovecot_stat[9] : 0;
# Determine conversion type
my $convert_uidl_to = $conversion_type;
if ( $convert_uidl_to eq 'auto' ) {
$convert_uidl_to = $dovecot_mtime > $courier_pop_mtime && $dovecot_mtime > $courier_imap_mtime ? 'courier' : 'dovecot';
}
# Convert UIDLs
if ( $convert_uidl_to eq 'dovecot' ) {
# To Dovecot
unless ( $courier_pop_mtime || $courier_imap_mtime ) {
print "$dir: No imap/pop3 uidlist files\n" if ( !$quiet && !$childbox );
return;
}
$owner_uid = $courier_pop_mtime ? $courier_pop_stat[4] : $courier_imap_stat[4];
$owner_gid = $courier_pop_mtime ? $courier_pop_stat[5] : $courier_imap_stat[5];
my $uidv = -1;
my $nextuid = 1;
my $filename_map;
if ( $courier_pop_mtime) {
$filename_map = read_courier_pop3( $dir );
}
if ($courier_imap_mtime) {
( $uidv, $nextuid, $filename_map ) = read_courier_imap( $dir, $filename_map );
}
$global_mailbox_count++;
write_dovecot_uidlist( $dir, $uidv, $nextuid, $owner_uid, $owner_gid, $filename_map );
remove_dovecot_caches($dir) if ($overwrite);
}
else {
# To Courier
unless ($dovecot_mtime) {
print "$dir: No imap/pop3 uidlist files\n" if ( !$quiet && !$childbox );
return;
}
$owner_uid = $dovecot_stat[4];
$owner_gid = $dovecot_stat[5];
my ( $uidv, $nextuid, $msguids ) = read_dovecot_uidfile($dir);
if ($uidv) {
write_courier_pop3( $dir, $uidv, $nextuid, $owner_uid, $owner_gid, $msguids );
write_courier_imap( $dir, $uidv, $nextuid, $owner_uid, $owner_gid, $msguids );
}
}
# If we get here we did a UIDL conversion. Now convert subscriptions and keywords
convert_subscriptions( $dir, $owner_uid, $owner_gid );
convert_keywords( $dir, $owner_uid, $owner_gid );
}
sub remove_dovecot_caches {
my $dir = shift;
foreach my $file ( qw(dovecot.index dovecot.index.cache dovecot.index.log dovecot.index.log2), $dovecot_uidvalidity_file ) {
unlink $dir . '/' . $file;
}
unlink glob( $dir . '/' . $dovecot_uidvalidity_file . '.*' );
}
sub read_dovecot_uidfile {
my $dir = shift;
my $dovecot_uidfile = "$dir/$dovecot_uidfile";
my $uidv;
my $nextuid = 1;
my $dovecot_uid_version;
my @msguids;
if ( !-f $dovecot_uidfile ) {
print "$dovecot_uidfile: OK\n" if ( !$quiet );
return;
}
my $dovecot_uid_fh;
open( $dovecot_uid_fh, '<', $dovecot_uidfile ) || die $!;
my $dovecot_hdr = readline($dovecot_uid_fh);
if ( $dovecot_hdr =~ /^3\s+(.+)$/ ) {
my $options = $1;
$dovecot_uid_version = 3;
foreach my $part ( split( /\s+/, $options ) ) {
if ( $part =~ /(\w)(.+)/ ) {
my $type = $1;
my $val = $2;
if ( $type eq 'V' ) {
$uidv = $val;
}
elsif ( $type eq 'N' ) {
$nextuid = $val;
}
}
}
unless ($uidv) {
$global_error_count++;
print STDERR "$dovecot_uidfile: Broken header: $dovecot_hdr\n";
close $dovecot_uid_fh;
return;
}
}
elsif ( $dovecot_hdr =~ /^1\s+(\S+)\s+(\S+)$/ ) {
$dovecot_uid_version = 1;
$uidv = $1;
$nextuid = $2;
}
else {
$global_error_count++;
print STDERR "$dovecot_uidfile: Broken header: $dovecot_hdr\n";
close $dovecot_uid_fh;
return;
}
while ( my $line = readline($dovecot_uid_fh) ) {
chomp $line;
my @prts = split( /\s+/, $line );
if ( $dovecot_uid_version eq '3' ) {
next unless ( scalar @prts >= 2 );
my $msgnum = shift @prts;
my $filename = pop @prts;
$filename =~ s/^\://;
my $msgsize;
# Dovecot may or may not store the sizes for each message in the uidl file
# S# is the size with UNIX newlines, W# is the size with windows newlines
SIZE_LOOP:
foreach my $subprt (@prts) {
if ( $subprt =~ s/^W// ) {
$msgsize = $subprt;
last SIZE_LOOP;
}
}
push @msguids, [ $msgnum, $filename, $msgsize ];
$nextuid = $msgnum + 1 if ( $msgnum >= $nextuid );
}
else {
# process V1 data
next unless ( scalar @prts == 2 );
push @msguids, [ $prts[0], $prts[1], undef ];
$nextuid = $prts[0] + 1 if ( $prts[0] >= $nextuid );
}
}
return ( $uidv, $nextuid, \@msguids );
}
sub write_courier_pop3 {
my $dir = shift;
my $uidv = shift;
my $nextuid = shift;
my $owner_uid = shift;
my $owner_gid = shift;
my $msguids = shift;
# Check file/overwrite/conversion
my $uidlist_fname = "$dir/$courier_pop3_uidfile";
if ( !$overwrite && -f $uidlist_fname ) {
print "$uidlist_fname already exists, not overwritten\n" if ( !$quiet );
return;
}
return if ( !$do_conversion );
# Check that all entries have sizes.. We don't write the pop3 file if we can't do so correctly
foreach my $msg_ar ( @{$msguids} ) {
unless ( defined $msg_ar->[2] ) {
print "Missing some sizes for $uidlist_fname, skipping\n" if ( !$quiet );
return;
}
}
# Write file
open( my $courier_pop_fh, '>', $uidlist_fname ) || die $!;
print $courier_pop_fh "/2 $nextuid $uidv\n";
foreach my $msg_ar ( @{$msguids} ) {
print $courier_pop_fh $msg_ar->[1] . ' ' . $msg_ar->[2] . ' ' . $msg_ar->[0] . ':' . $uidv . "\n";
}
close $courier_pop_fh;
chown $owner_uid, $owner_gid, $uidlist_fname;
$uidlist_write_count++;
}
sub write_courier_imap {
my $dir = shift;
my $uidv = shift;
my $nextuid = shift;
my $owner_uid = shift;
my $owner_gid = shift;
my $msguids = shift;
# Check file/overwrite/conversion
my $uidlist_fname = "$dir/$courier_imap_uidfile";
if ( !$overwrite && -f $uidlist_fname ) {
print "$uidlist_fname already exists, not overwritten\n" if ( !$quiet );
return;
}
return if ( !$do_conversion );
# Write file
open( my $courier_imap_fh, '>', $uidlist_fname ) || die $!;
print $courier_imap_fh "1 $uidv $nextuid\n";
foreach my $msg_ar ( @{$msguids} ) {
my $filename = $msg_ar->[1];
$filename =~ s/\:2.*$//;
print $courier_imap_fh $msg_ar->[0] . ' ' . $filename . "\n";
}
close $courier_imap_fh;
chown $owner_uid, $owner_gid, $uidlist_fname;
$uidlist_write_count++;
}
sub check_maildir {
my ($dir) = @_;
my $orig_mailboxes = $global_mailbox_count;
check_maildir_single( $dir, 0 );
my @check_maildir_files;
if ( opendir my $check_maildir_dh, $dir ) {
@check_maildir_files = readdir($check_maildir_dh);
closedir $check_maildir_dh;
}
foreach my $file (@check_maildir_files) {
next unless ( $file =~ /^\./ );
next if ( $file =~ /^\.?\.$/ );
$file = $dir . '/' . $file;
next if ( -l $file );
check_maildir_single( $file, 1 );
}
$global_user_count++ if ( $orig_mailboxes != $global_mailbox_count );
}
sub is_maildir {
my ($dir) = @_;
# Do we need to check for the courier specific files here or is it enough to assume every maildir will have a cur directory?