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path: root/libetpan/src/driver/implementation/mbox/mboxdriver_cached.c
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Diffstat (limited to 'libetpan/src/driver/implementation/mbox/mboxdriver_cached.c') (more/less context) (ignore whitespace changes)
-rw-r--r--libetpan/src/driver/implementation/mbox/mboxdriver_cached.c1337
1 files changed, 1337 insertions, 0 deletions
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_cached.c b/libetpan/src/driver/implementation/mbox/mboxdriver_cached.c
new file mode 100644
index 0000000..eaa0e48
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+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_cached.c
@@ -0,0 +1,1337 @@
1/*
2 * libEtPan! -- a mail stuff library
3 *
4 * Copyright (C) 2001, 2005 - DINH Viet Hoa
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the libEtPan! project nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/*
33 * $Id$
34 */
35
36#include "mboxdriver_cached.h"
37
38#include <stdio.h>
39#include <string.h>
40#include <dirent.h>
41#include <unistd.h>
42#include <ctype.h>
43#include <sys/types.h>
44#include <sys/stat.h>
45#include <fcntl.h>
46#include <stdlib.h>
47
48#include "mail.h"
49#include "mail_cache_db.h"
50#include "mboxdriver.h"
51#include "mboxdriver_tools.h"
52#include "maildriver_tools.h"
53#include "mailmbox.h"
54#include "maildriver.h"
55#include "carray.h"
56#include "generic_cache.h"
57#include "imfcache.h"
58#include "mboxdriver_cached_message.h"
59#include "libetpan-config.h"
60
61static int mboxdriver_cached_initialize(mailsession * session);
62
63static void mboxdriver_cached_uninitialize(mailsession * session);
64
65static int mboxdriver_cached_parameters(mailsession * session,
66 int id, void * value);
67
68static int mboxdriver_cached_connect_path(mailsession * session, char * path);
69
70static int mboxdriver_cached_logout(mailsession * session);
71
72static int mboxdriver_cached_check_folder(mailsession * session);
73
74static int mboxdriver_cached_expunge_folder(mailsession * session);
75
76static int mboxdriver_cached_status_folder(mailsession * session, char * mb,
77 uint32_t * result_messages, uint32_t * result_recent,
78 uint32_t * result_unseen);
79static int mboxdriver_cached_messages_number(mailsession * session, char * mb,
80 uint32_t * result);
81static int mboxdriver_cached_recent_number(mailsession * session, char * mb,
82 uint32_t * result);
83static int mboxdriver_cached_unseen_number(mailsession * session, char * mb,
84 uint32_t * result);
85
86static int mboxdriver_cached_append_message(mailsession * session,
87 char * message, size_t size);
88
89static int mboxdriver_cached_append_message_flags(mailsession * session,
90 char * message, size_t size, struct mail_flags * flags);
91
92static int
93mboxdriver_cached_get_messages_list(mailsession * session,
94 struct mailmessage_list ** result);
95
96static int
97mboxdriver_cached_get_envelopes_list(mailsession * session,
98 struct mailmessage_list * env_list);
99
100static int mboxdriver_cached_remove_message(mailsession * session,
101 uint32_t num);
102
103static int mboxdriver_cached_get_message(mailsession * session,
104 uint32_t num, mailmessage ** result);
105
106static int mboxdriver_cached_get_message_by_uid(mailsession * session,
107 const char * uid,
108 mailmessage ** result);
109
110static mailsession_driver local_mbox_cached_session_driver = {
111 .sess_name = "mbox-cached",
112
113 .sess_initialize = mboxdriver_cached_initialize,
114 .sess_uninitialize = mboxdriver_cached_uninitialize,
115
116 .sess_parameters = mboxdriver_cached_parameters,
117
118 .sess_connect_path = mboxdriver_cached_connect_path,
119 .sess_connect_stream = NULL,
120 .sess_starttls = NULL,
121 .sess_login = NULL,
122 .sess_logout = mboxdriver_cached_logout,
123 .sess_noop = NULL,
124
125 .sess_build_folder_name = NULL,
126 .sess_create_folder = NULL,
127 .sess_delete_folder = NULL,
128 .sess_rename_folder = NULL,
129 .sess_check_folder = mboxdriver_cached_check_folder,
130 .sess_examine_folder = NULL,
131 .sess_select_folder = NULL,
132 .sess_expunge_folder = mboxdriver_cached_expunge_folder,
133 .sess_status_folder = mboxdriver_cached_status_folder,
134 .sess_messages_number = mboxdriver_cached_messages_number,
135 .sess_recent_number = mboxdriver_cached_recent_number,
136 .sess_unseen_number = mboxdriver_cached_unseen_number,
137 .sess_list_folders = NULL,
138 .sess_lsub_folders = NULL,
139 .sess_subscribe_folder = NULL,
140 .sess_unsubscribe_folder = NULL,
141
142 .sess_append_message = mboxdriver_cached_append_message,
143 .sess_append_message_flags = mboxdriver_cached_append_message_flags,
144
145 .sess_copy_message = NULL,
146 .sess_move_message = NULL,
147
148 .sess_get_messages_list = mboxdriver_cached_get_messages_list,
149 .sess_get_envelopes_list = mboxdriver_cached_get_envelopes_list,
150 .sess_remove_message = mboxdriver_cached_remove_message,
151#if 0
152 .sess_search_messages = maildriver_generic_search_messages,
153#endif
154
155 .sess_get_message = mboxdriver_cached_get_message,
156 .sess_get_message_by_uid = mboxdriver_cached_get_message_by_uid,
157};
158
159mailsession_driver * mbox_cached_session_driver =
160&local_mbox_cached_session_driver;
161
162
163#define ENV_NAME "env.db"
164#define FLAGS_NAME "flags.db"
165
166
167
168static int mbox_error_to_mail_error(int error)
169{
170 switch (error) {
171 case MAILMBOX_NO_ERROR:
172 return MAIL_NO_ERROR;
173
174 case MAILMBOX_ERROR_PARSE:
175 return MAIL_ERROR_PARSE;
176
177 case MAILMBOX_ERROR_INVAL:
178 return MAIL_ERROR_INVAL;
179
180 case MAILMBOX_ERROR_FILE_NOT_FOUND:
181 return MAIL_ERROR_PARSE;
182
183 case MAILMBOX_ERROR_MEMORY:
184 return MAIL_ERROR_MEMORY;
185
186 case MAILMBOX_ERROR_TEMPORARY_FILE:
187 return MAIL_ERROR_PARSE;
188
189 case MAILMBOX_ERROR_FILE:
190 return MAIL_ERROR_FILE;
191
192 case MAILMBOX_ERROR_MSG_NOT_FOUND:
193 return MAIL_ERROR_MSG_NOT_FOUND;
194
195 case MAILMBOX_ERROR_READONLY:
196 return MAIL_ERROR_READONLY;
197
198 default:
199 return MAIL_ERROR_INVAL;
200 }
201}
202
203
204
205
206static inline struct mbox_cached_session_state_data *
207get_cached_data(mailsession * session)
208{
209 return session->sess_data;
210}
211
212static inline mailsession * get_ancestor(mailsession * session)
213{
214 return get_cached_data(session)->mbox_ancestor;
215}
216
217static inline struct mbox_session_state_data *
218get_ancestor_data(mailsession * session)
219{
220 return get_ancestor(session)->sess_data;
221}
222
223static inline struct mailmbox_folder *
224get_mbox_session(mailsession * session)
225{
226 return get_ancestor_data(session)->mbox_folder;
227}
228
229static int mboxdriver_cached_initialize(mailsession * session)
230{
231 struct mbox_cached_session_state_data * cached_data;
232 struct mbox_session_state_data * mbox_data;
233
234 cached_data = malloc(sizeof(* cached_data));
235 if (cached_data == NULL)
236 goto err;
237
238 cached_data->mbox_flags_store = mail_flags_store_new();
239 if (cached_data->mbox_flags_store == NULL)
240 goto free;
241
242 cached_data->mbox_ancestor = mailsession_new(mbox_session_driver);
243 if (cached_data->mbox_ancestor == NULL)
244 goto free_store;
245
246 cached_data->mbox_quoted_mb = NULL;
247 /*
248 UID must be enabled to take advantage of the cache
249 */
250 mbox_data = cached_data->mbox_ancestor->sess_data;
251 mbox_data->mbox_force_no_uid = FALSE;
252
253 session->sess_data = cached_data;
254
255 return MAIL_NO_ERROR;
256
257 free_store:
258 mail_flags_store_free(cached_data->mbox_flags_store);
259 free:
260 free(cached_data);
261 err:
262 return MAIL_ERROR_MEMORY;
263}
264
265static void free_state(struct mbox_cached_session_state_data * mbox_data)
266{
267 if (mbox_data->mbox_quoted_mb) {
268 free(mbox_data->mbox_quoted_mb);
269 mbox_data->mbox_quoted_mb = NULL;
270 }
271}
272
273static int mbox_flags_store_process(char * flags_directory, char * quoted_mb,
274 struct mail_flags_store * flags_store)
275{
276 char filename_flags[PATH_MAX];
277 struct mail_cache_db * cache_db_flags;
278 MMAPString * mmapstr;
279 unsigned int i;
280 int r;
281 int res;
282
283 if (carray_count(flags_store->fls_tab) == 0)
284 return MAIL_NO_ERROR;
285
286 if (quoted_mb == NULL)
287 return MAIL_NO_ERROR;
288
289 snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
290 flags_directory, MAIL_DIR_SEPARATOR, quoted_mb,
291 MAIL_DIR_SEPARATOR, FLAGS_NAME);
292
293 r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
294 if (r < 0) {
295 res = MAIL_ERROR_FILE;
296 goto err;
297 }
298
299 mmapstr = mmap_string_new("");
300 if (mmapstr == NULL) {
301 res = MAIL_ERROR_MEMORY;
302 goto close_db_flags;
303 }
304
305 for(i = 0 ; i < carray_count(flags_store->fls_tab) ; i ++) {
306 mailmessage * msg;
307
308 msg = carray_get(flags_store->fls_tab, i);
309
310 r = mboxdriver_write_cached_flags(cache_db_flags, mmapstr,
311 msg->msg_uid, msg->msg_flags);
312 if (r != MAIL_NO_ERROR) {
313 /* ignore errors */
314 }
315 }
316
317 mmap_string_free(mmapstr);
318 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
319
320 mail_flags_store_clear(flags_store);
321
322 return MAIL_NO_ERROR;
323
324 close_db_flags:
325 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
326 err:
327 return res;
328}
329
330static void mboxdriver_cached_uninitialize(mailsession * session)
331{
332 struct mbox_cached_session_state_data * data;
333
334 data = get_cached_data(session);
335
336 mbox_flags_store_process(data->mbox_flags_directory,
337 data->mbox_quoted_mb,
338 data->mbox_flags_store);
339
340 mail_flags_store_free(data->mbox_flags_store);
341
342 free_state(data);
343 mailsession_free(data->mbox_ancestor);
344 free(data);
345
346 session->sess_data = NULL;
347}
348
349static int mboxdriver_cached_parameters(mailsession * session,
350 int id, void * value)
351{
352 struct mbox_cached_session_state_data * data;
353 int r;
354
355 data = get_cached_data(session);
356
357 switch (id) {
358 case MBOXDRIVER_CACHED_SET_CACHE_DIRECTORY:
359 strncpy(data->mbox_cache_directory, value, PATH_MAX);
360 data->mbox_cache_directory[PATH_MAX - 1] = '\0';
361
362 r = generic_cache_create_dir(data->mbox_cache_directory);
363 if (r != MAIL_NO_ERROR)
364 return r;
365
366 return MAIL_NO_ERROR;
367
368 case MBOXDRIVER_CACHED_SET_FLAGS_DIRECTORY:
369 strncpy(data->mbox_flags_directory, value, PATH_MAX);
370 data->mbox_flags_directory[PATH_MAX - 1] = '\0';
371
372 r = generic_cache_create_dir(data->mbox_flags_directory);
373 if (r != MAIL_NO_ERROR)
374 return r;
375
376 return MAIL_NO_ERROR;
377
378 case MBOXDRIVER_SET_NO_UID:
379 return MAIL_ERROR_INVAL;
380
381 default:
382 return mailsession_parameters(data->mbox_ancestor, id, value);
383 }
384}
385
386
387static int get_cache_directory(mailsession * session,
388 char * path, char ** result)
389{
390 char * quoted_mb;
391 char dirname[PATH_MAX];
392 int res;
393 int r;
394 struct mbox_cached_session_state_data * cached_data;
395
396 cached_data = get_cached_data(session);
397
398 quoted_mb = maildriver_quote_mailbox(path);
399 if (quoted_mb == NULL) {
400 res = MAIL_ERROR_MEMORY;
401 goto err;
402 }
403
404 snprintf(dirname, PATH_MAX, "%s%c%s",
405 cached_data->mbox_cache_directory, MAIL_DIR_SEPARATOR, quoted_mb);
406
407 r = generic_cache_create_dir(dirname);
408 if (r != MAIL_NO_ERROR) {
409 res = r;
410 goto free;
411 }
412
413 snprintf(dirname, PATH_MAX, "%s%c%s",
414 cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR, quoted_mb);
415
416 r = generic_cache_create_dir(dirname);
417 if (r != MAIL_NO_ERROR) {
418 res = r;
419 goto free;
420 }
421
422 * result = quoted_mb;
423
424 return MAIL_NO_ERROR;
425
426 free:
427 free(quoted_mb);
428 err:
429 return res;
430}
431
432
433
434
435#define FILENAME_MAX_UID "max-uid"
436
437/* write max uid current value */
438
439static int write_max_uid_value(mailsession * session)
440{
441 int r;
442 char filename[PATH_MAX];
443 FILE * f;
444 int res;
445
446#if 0
447 struct mbox_session_state_data * mbox_data;
448#endif
449 struct mbox_cached_session_state_data * cached_data;
450 int fd;
451
452 MMAPString * mmapstr;
453 size_t cur_token;
454 struct mailmbox_folder * folder;
455
456 /* expunge the mailbox */
457
458#if 0
459 mbox_data = get_ancestor(session)->data;
460#endif
461 folder = get_mbox_session(session);
462
463 r = mailmbox_validate_write_lock(folder);
464 if (r != MAILMBOX_NO_ERROR) {
465 res = mbox_error_to_mail_error(r);
466 goto err;
467 }
468
469 r = mailmbox_expunge_no_lock(folder);
470 if (r != MAILMBOX_NO_ERROR) {
471 res = r;
472 goto unlock;
473 }
474
475 cached_data = get_cached_data(session);
476
477 snprintf(filename, PATH_MAX, "%s%c%s%c%s",
478 cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR,
479 cached_data->mbox_quoted_mb, MAIL_DIR_SEPARATOR, FILENAME_MAX_UID);
480
481 fd = creat(filename, S_IRUSR | S_IWUSR);
482 if (fd < 0) {
483 res = MAIL_ERROR_FILE;
484 goto err;
485 }
486
487 f = fdopen(fd, "w");
488 if (f == NULL) {
489 close(fd);
490 res = MAIL_ERROR_FILE;
491 goto unlock;
492 }
493
494 mmapstr = mmap_string_new("");
495 if (mmapstr == NULL) {
496 res = MAIL_ERROR_MEMORY;
497 goto close;
498 }
499
500 r = mail_serialize_clear(mmapstr, &cur_token);
501 if (r != MAIL_NO_ERROR) {
502 res = r;
503 goto free_mmapstr;
504 }
505
506 r = mailimf_cache_int_write(mmapstr, &cur_token,
507 folder->mb_written_uid);
508 if (r != MAIL_NO_ERROR) {
509 res = r;
510 goto free_mmapstr;
511 }
512
513 fwrite(mmapstr->str, 1, mmapstr->len, f);
514
515 mmap_string_free(mmapstr);
516 fclose(f);
517 mailmbox_write_unlock(folder);
518
519 return MAIL_NO_ERROR;
520
521 free_mmapstr:
522 mmap_string_free(mmapstr);
523 close:
524 fclose(f);
525 unlock:
526 mailmbox_read_unlock(folder);
527 err:
528 return res;
529}
530
531static int read_max_uid_value(mailsession * session, uint32_t * result)
532{
533 int r;
534 char filename[PATH_MAX];
535 FILE * f;
536 uint32_t written_uid;
537 int res;
538
539 struct mbox_cached_session_state_data * cached_data;
540
541 MMAPString * mmapstr;
542 size_t cur_token;
543 char buf[sizeof(uint32_t)];
544 size_t read_size;
545
546 cached_data = get_cached_data(session);
547
548 snprintf(filename, PATH_MAX, "%s%c%s%c%s",
549 cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR,
550 cached_data->mbox_quoted_mb, MAIL_DIR_SEPARATOR, FILENAME_MAX_UID);
551
552 f = fopen(filename, "r");
553 if (f == NULL) {
554 res = MAIL_ERROR_FILE;
555 goto err;
556 }
557
558 read_size = fread(buf, 1, sizeof(uint32_t), f);
559
560 mmapstr = mmap_string_new_len(buf, read_size);
561 if (mmapstr == NULL) {
562 res = MAIL_ERROR_MEMORY;
563 goto close;
564 }
565
566 cur_token = 0;
567
568 r = mailimf_cache_int_read(mmapstr, &cur_token, &written_uid);
569 if (r != MAIL_NO_ERROR) {
570 fclose(f);
571 res = r;
572 goto free_mmapstr;
573 }
574
575 mmap_string_free(mmapstr);
576 fclose(f);
577
578 * result = written_uid;
579
580 return MAIL_NO_ERROR;
581
582 free_mmapstr:
583 mmap_string_free(mmapstr);
584 close:
585 fclose(f);
586 err:
587 return res;
588}
589
590static int mboxdriver_cached_connect_path(mailsession * session, char * path)
591{
592 int r;
593 int res;
594 char * quoted_mb;
595 struct mbox_cached_session_state_data * cached_data;
596 struct mbox_session_state_data * ancestor_data;
597 struct mailmbox_folder * folder;
598 uint32_t written_uid;
599
600 folder = get_mbox_session(session);
601 if (folder != NULL) {
602 res = MAIL_ERROR_BAD_STATE;
603 goto err;
604 }
605
606 r = get_cache_directory(session, path, &quoted_mb);
607 if (r != MAIL_NO_ERROR) {
608 res = r;
609 goto err;
610 }
611
612 cached_data = get_cached_data(session);
613 free_state(cached_data);
614
615 cached_data->mbox_quoted_mb = quoted_mb;
616
617 written_uid = 0;
618 r = read_max_uid_value(session, &written_uid);
619 /* ignore errors */
620
621 ancestor_data = get_ancestor_data(session);
622
623 r = mailmbox_init(path,
624 ancestor_data->mbox_force_read_only,
625 ancestor_data->mbox_force_no_uid,
626 written_uid,
627 &folder);
628
629 if (r != MAILMBOX_NO_ERROR) {
630 cached_data->mbox_quoted_mb = NULL;
631
632 res = mboxdriver_mbox_error_to_mail_error(r);
633 goto free;
634 }
635
636 ancestor_data->mbox_folder = folder;
637
638 return MAIL_NO_ERROR;
639
640 free:
641 free(quoted_mb);
642 err:
643 return res;
644}
645
646
647static int mboxdriver_cached_logout(mailsession * session)
648{
649 struct mbox_cached_session_state_data * cached_data;
650 int r;
651
652 r = write_max_uid_value(session);
653
654 cached_data = get_cached_data(session);
655
656 mbox_flags_store_process(cached_data->mbox_flags_directory,
657 cached_data->mbox_quoted_mb,
658 cached_data->mbox_flags_store);
659
660 r = mailsession_logout(get_ancestor(session));
661 if (r != MAIL_NO_ERROR)
662 return r;
663
664 free_state(cached_data);
665
666 return MAIL_NO_ERROR;
667}
668
669static int mboxdriver_cached_check_folder(mailsession * session)
670{
671 struct mbox_cached_session_state_data * cached_data;
672
673 cached_data = get_cached_data(session);
674
675 mbox_flags_store_process(cached_data->mbox_flags_directory,
676 cached_data->mbox_quoted_mb,
677 cached_data->mbox_flags_store);
678
679 return MAIL_NO_ERROR;
680}
681
682static int mboxdriver_cached_expunge_folder(mailsession * session)
683{
684 struct mailmbox_folder * folder;
685 int res;
686 char filename_flags[PATH_MAX];
687 struct mail_cache_db * cache_db_flags;
688 MMAPString * mmapstr;
689 struct mbox_cached_session_state_data * data;
690 int r;
691 unsigned int i;
692
693 folder = get_mbox_session(session);
694 if (folder == NULL) {
695 res = MAIL_ERROR_BAD_STATE;
696 goto err;
697 }
698
699 data = get_cached_data(session);
700 if (data->mbox_quoted_mb == NULL) {
701 res = MAIL_ERROR_BAD_STATE;
702 goto err;
703 }
704
705 mbox_flags_store_process(data->mbox_flags_directory,
706 data->mbox_quoted_mb,
707 data->mbox_flags_store);
708
709 snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
710 data->mbox_flags_directory, MAIL_DIR_SEPARATOR, data->mbox_quoted_mb,
711 MAIL_DIR_SEPARATOR, FLAGS_NAME);
712
713 r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
714 if (r < 0) {
715 res = MAIL_ERROR_FILE;
716 goto err;
717 }
718
719 mmapstr = mmap_string_new("");
720 if (mmapstr == NULL) {
721 res = MAIL_ERROR_MEMORY;
722 goto close_db_flags;
723 }
724
725 for(i = 0 ; i < carray_count(folder->mb_tab) ; i ++) {
726 struct mailmbox_msg_info * msg_info;
727 struct mail_flags * flags;
728
729 msg_info = carray_get(folder->mb_tab, i);
730 if (msg_info == NULL)
731 continue;
732
733 if (msg_info->msg_deleted)
734 continue;
735
736 r = mboxdriver_get_cached_flags(cache_db_flags, mmapstr,
737 session, msg_info->msg_uid, &flags);
738 if (r != MAIL_NO_ERROR)
739 continue;
740
741 if (flags->fl_flags & MAIL_FLAG_DELETED) {
742 r = mailmbox_delete_msg(folder, msg_info->msg_uid);
743 }
744
745 mail_flags_free(flags);
746 }
747
748 mmap_string_free(mmapstr);
749 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
750
751 r = mailmbox_expunge(folder);
752
753 return MAIL_NO_ERROR;
754
755 close_db_flags:
756 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
757 err:
758 return res;
759}
760
761static int mboxdriver_cached_status_folder(mailsession * session, char * mb,
762 uint32_t * result_messages, uint32_t * result_recent,
763 uint32_t * result_unseen)
764{
765 struct mailmbox_folder * folder;
766 int res;
767 char filename_flags[PATH_MAX];
768 struct mail_cache_db * cache_db_flags;
769 MMAPString * mmapstr;
770 struct mbox_cached_session_state_data * data;
771 int r;
772 unsigned int i;
773 uint32_t recent;
774 uint32_t unseen;
775 uint32_t num;
776
777 num = 0;
778 recent = 0;
779 unseen = 0;
780
781 folder = get_mbox_session(session);
782 if (folder == NULL) {
783 res = MAIL_ERROR_BAD_STATE;
784 goto err;
785 }
786
787 data = get_cached_data(session);
788 if (data->mbox_quoted_mb == NULL) {
789 res = MAIL_ERROR_BAD_STATE;
790 goto err;
791 }
792
793 r = mailmbox_validate_read_lock(folder);
794 if (r != MAIL_NO_ERROR) {
795 res = MAIL_ERROR_BAD_STATE;
796 goto err;
797 }
798
799 mailmbox_read_unlock(folder);
800
801 mbox_flags_store_process(data->mbox_flags_directory, data->mbox_quoted_mb,
802 data->mbox_flags_store);
803
804 snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
805 data->mbox_flags_directory, MAIL_DIR_SEPARATOR, data->mbox_quoted_mb,
806 MAIL_DIR_SEPARATOR, FLAGS_NAME);
807
808 r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
809 if (r < 0) {
810 res = MAIL_ERROR_FILE;
811 goto err;
812 }
813
814 mmapstr = mmap_string_new("");
815 if (mmapstr == NULL) {
816 res = MAIL_ERROR_MEMORY;
817 goto close_db_flags;
818 }
819
820 for(i = 0 ; i < carray_count(folder->mb_tab) ; i ++) {
821 struct mailmbox_msg_info * msg_info;
822 struct mail_flags * flags;
823
824 msg_info = carray_get(folder->mb_tab, i);
825 if (msg_info == NULL)
826 continue;
827
828 if (msg_info->msg_deleted)
829 continue;
830
831 r = mboxdriver_get_cached_flags(cache_db_flags, mmapstr,
832 session, msg_info->msg_uid, &flags);
833 if (r != MAIL_NO_ERROR) {
834 recent ++;
835 unseen ++;
836 num ++;
837 continue;
838 }
839
840 if ((flags->fl_flags & MAIL_FLAG_NEW) != 0) {
841 recent ++;
842 }
843 if ((flags->fl_flags & MAIL_FLAG_SEEN) == 0) {
844 unseen ++;
845 }
846
847 num ++;
848
849 mail_flags_free(flags);
850 }
851
852 mmap_string_free(mmapstr);
853 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
854
855 * result_messages = num;
856 * result_recent = recent;
857 * result_unseen = unseen;
858
859 return MAIL_NO_ERROR;
860
861 close_db_flags:
862 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
863 err:
864 return res;
865}
866
867static int mboxdriver_cached_messages_number(mailsession * session, char * mb,
868 uint32_t * result)
869{
870 return mailsession_messages_number(get_ancestor(session), mb, result);
871}
872
873
874static int mboxdriver_cached_recent_number(mailsession * session, char * mb,
875 uint32_t * result)
876{
877 uint32_t messages;
878 uint32_t recent;
879 uint32_t unseen;
880 int r;
881
882 r = mboxdriver_cached_status_folder(session, mb, &messages, &recent, &unseen);
883 if (r != MAIL_NO_ERROR)
884 return r;
885
886 * result = recent;
887
888 return MAIL_NO_ERROR;
889}
890
891static int mboxdriver_cached_unseen_number(mailsession * session, char * mb,
892 uint32_t * result)
893{
894 uint32_t messages;
895 uint32_t recent;
896 uint32_t unseen;
897 int r;
898
899 r = mboxdriver_cached_status_folder(session, mb,
900 &messages, &recent, &unseen);
901 if (r != MAIL_NO_ERROR)
902 return r;
903
904 * result = unseen;
905
906 return MAIL_NO_ERROR;
907}
908
909/* messages operations */
910
911static int mboxdriver_cached_append_message(mailsession * session,
912 char * message, size_t size)
913{
914 return mboxdriver_cached_append_message_flags(session,
915 message, size, NULL);
916}
917
918static int mboxdriver_cached_append_message_flags(mailsession * session,
919 char * message, size_t size, struct mail_flags * flags)
920{
921 int r;
922 struct mailmbox_folder * folder;
923 struct mbox_cached_session_state_data * data;
924 unsigned int uid;
925 struct mailmbox_msg_info * msg_info;
926 chashdatum key;
927 chashdatum value;
928 struct mail_cache_db * cache_db_flags;
929 char filename_flags[PATH_MAX];
930 MMAPString * mmapstr;
931 char keyname[PATH_MAX];
932
933 folder = get_mbox_session(session);
934 if (folder == NULL)
935 return MAIL_ERROR_APPEND;
936
937 r = mailmbox_append_message_uid(folder, message, size, &uid);
938
939 switch (r) {
940 case MAILMBOX_ERROR_FILE:
941 return MAIL_ERROR_DISKSPACE;
942 case MAILMBOX_NO_ERROR:
943 break;
944 default:
945 return mboxdriver_mbox_error_to_mail_error(r);
946 }
947
948 /* could store in flags store instead */
949
950 if (flags == NULL)
951 goto exit;
952
953 key.data = &uid;
954 key.len = sizeof(uid);
955 r = chash_get(folder->mb_hash, &key, &value);
956 if (r < 0)
957 goto exit;
958
959 msg_info = value.data;
960
961 data = get_cached_data(session);
962
963 snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
964 data->mbox_flags_directory, MAIL_DIR_SEPARATOR, data->mbox_quoted_mb,
965 MAIL_DIR_SEPARATOR, FLAGS_NAME);
966
967 r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
968 if (r < 0)
969 goto exit;
970
971 mmapstr = mmap_string_new("");
972 if (mmapstr == NULL)
973 goto close_db_flags;
974
975 snprintf(keyname, PATH_MAX, "%u-%lu", uid,
976 (unsigned long) msg_info->msg_body_len);
977
978 r = mboxdriver_write_cached_flags(cache_db_flags, mmapstr, keyname, flags);
979
980 mmap_string_free(mmapstr);
981 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
982
983 if (r != MAIL_NO_ERROR)
984 goto exit;
985
986 return MAIL_NO_ERROR;
987
988 close_db_flags:
989 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
990 exit:
991 return MAIL_NO_ERROR;
992}
993
994static int
995mboxdriver_cached_get_messages_list(mailsession * session,
996 struct mailmessage_list ** result)
997{
998 struct mailmbox_folder * folder;
999 int res;
1000
1001 folder = get_mbox_session(session);
1002 if (folder == NULL) {
1003 res = MAIL_ERROR_BAD_STATE;
1004 goto err;
1005 }
1006
1007 return mbox_get_uid_messages_list(folder,
1008 session, mbox_cached_message_driver, result);
1009
1010 err:
1011 return res;
1012}
1013
1014static int
1015get_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
1016 mailsession * session, uint32_t num,
1017 struct mailimf_fields ** result)
1018{
1019 int r;
1020 char keyname[PATH_MAX];
1021 struct mailimf_fields * fields;
1022 int res;
1023 struct mailmbox_msg_info * info;
1024 struct mailmbox_folder * folder;
1025 chashdatum key;
1026 chashdatum data;
1027
1028 folder = get_mbox_session(session);
1029 if (folder == NULL) {
1030 res = MAIL_ERROR_BAD_STATE;
1031 goto err;
1032 }
1033
1034 key.data = &num;
1035 key.len = sizeof(num);
1036
1037 r = chash_get(folder->mb_hash, &key, &data);
1038 if (r < 0) {
1039 res = MAIL_ERROR_MSG_NOT_FOUND;
1040 goto err;
1041 }
1042
1043 info = data.data;
1044
1045 snprintf(keyname, PATH_MAX, "%u-%lu-envelope", num,
1046 (unsigned long) info->msg_body_len);
1047
1048 r = generic_cache_fields_read(cache_db, mmapstr, keyname, &fields);
1049 if (r != MAIL_NO_ERROR) {
1050 res = r;
1051 goto err;
1052 }
1053
1054 * result = fields;
1055
1056 return MAIL_NO_ERROR;
1057
1058 err:
1059 return res;
1060}
1061
1062static int
1063write_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
1064 mailsession * session, uint32_t num,
1065 struct mailimf_fields * fields)
1066{
1067 int r;
1068 char keyname[PATH_MAX];
1069 int res;
1070 struct mailmbox_msg_info * info;
1071 struct mailmbox_folder * folder;
1072 chashdatum key;
1073 chashdatum data;
1074
1075 folder = get_mbox_session(session);
1076 if (folder == NULL) {
1077 res = MAIL_ERROR_BAD_STATE;
1078 goto err;
1079 }
1080
1081 key.data = &num;
1082 key.len = sizeof(num);
1083
1084 r = chash_get(folder->mb_hash, &key, &data);
1085 if (r < 0) {
1086 res = MAIL_ERROR_MSG_NOT_FOUND;
1087 goto err;
1088 }
1089
1090 info = data.data;
1091
1092 snprintf(keyname, PATH_MAX, "%u-%lu-envelope", num,
1093 (unsigned long) info->msg_body_len);
1094
1095 r = generic_cache_fields_write(cache_db, mmapstr, keyname, fields);
1096 if (r != MAIL_NO_ERROR) {
1097 res = r;
1098 goto err;
1099 }
1100
1101 return MAIL_NO_ERROR;
1102
1103 err:
1104 return res;
1105}
1106
1107static int
1108mboxdriver_cached_get_envelopes_list(mailsession * session,
1109 struct mailmessage_list * env_list)
1110{
1111 int r;
1112 unsigned int i;
1113 struct mbox_cached_session_state_data * cached_data;
1114 char filename_env[PATH_MAX];
1115 char filename_flags[PATH_MAX];
1116 struct mail_cache_db * cache_db_env;
1117 struct mail_cache_db * cache_db_flags;
1118 MMAPString * mmapstr;
1119 int res;
1120 struct mailmbox_folder * folder;
1121
1122 folder = get_mbox_session(session);
1123 if (folder == NULL) {
1124 res = MAIL_ERROR_BAD_STATE;
1125 goto err;
1126 }
1127
1128 cached_data = get_cached_data(session);
1129 if (cached_data->mbox_quoted_mb == NULL) {
1130 res = MAIL_ERROR_BAD_STATE;
1131 goto err;
1132 }
1133
1134 mbox_flags_store_process(cached_data->mbox_flags_directory,
1135 cached_data->mbox_quoted_mb,
1136 cached_data->mbox_flags_store);
1137
1138 mmapstr = mmap_string_new("");
1139 if (mmapstr == NULL) {
1140 res = MAIL_ERROR_MEMORY;
1141 goto err;
1142 }
1143
1144 snprintf(filename_env, PATH_MAX, "%s%c%s%c%s",
1145 cached_data->mbox_cache_directory, MAIL_DIR_SEPARATOR,
1146 cached_data->mbox_quoted_mb,
1147 MAIL_DIR_SEPARATOR, ENV_NAME);
1148
1149 r = mail_cache_db_open_lock(filename_env, &cache_db_env);
1150 if (r < 0) {
1151 res = MAIL_ERROR_MEMORY;
1152 goto free_mmapstr;
1153 }
1154
1155 snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
1156 cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR,
1157 cached_data->mbox_quoted_mb,
1158 MAIL_DIR_SEPARATOR, FLAGS_NAME);
1159
1160 r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
1161 if (r < 0) {
1162 res = MAIL_ERROR_FILE;
1163 goto close_db_env;
1164 }
1165
1166 /* fill with cached */
1167
1168 for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
1169 mailmessage * msg;
1170 struct mailimf_fields * fields;
1171 struct mail_flags * flags;
1172
1173 msg = carray_get(env_list->msg_tab, i);
1174
1175 if (msg->msg_fields == NULL) {
1176 r = get_cached_envelope(cache_db_env, mmapstr, session,
1177 msg->msg_index, &fields);
1178 if (r == MAIL_NO_ERROR) {
1179 msg->msg_cached = TRUE;
1180 msg->msg_fields = fields;
1181 }
1182 }
1183
1184 if (msg->msg_flags == NULL) {
1185 r = mboxdriver_get_cached_flags(cache_db_flags, mmapstr,
1186 session, msg->msg_index,
1187 &flags);
1188 if (r == MAIL_NO_ERROR) {
1189 msg->msg_flags = flags;
1190 }
1191 }
1192 }
1193
1194 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
1195 mail_cache_db_close_unlock(filename_env, cache_db_env);
1196
1197 r = mailsession_get_envelopes_list(get_ancestor(session), env_list);
1198
1199 if (r != MAIL_NO_ERROR) {
1200 res = r;
1201 goto free_mmapstr;
1202 }
1203
1204 /* add flags */
1205
1206 for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
1207 mailmessage * msg;
1208
1209 msg = carray_get(env_list->msg_tab, i);
1210
1211 if (msg->msg_flags == NULL)
1212 msg->msg_flags = mail_flags_new_empty();
1213 }
1214
1215 r = mail_cache_db_open_lock(filename_env, &cache_db_env);
1216 if (r < 0) {
1217 res = MAIL_ERROR_MEMORY;
1218 goto free_mmapstr;
1219 }
1220
1221 r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
1222 if (r < 0) {
1223 res = MAIL_ERROR_FILE;
1224 goto close_db_env;
1225 }
1226
1227 /* must write cache */
1228
1229 for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
1230 mailmessage * msg;
1231
1232 msg = carray_get(env_list->msg_tab, i);
1233
1234 if (msg->msg_fields != NULL) {
1235 if (!msg->msg_cached) {
1236 /* msg->msg_index is the numerical UID of the message */
1237 r = write_cached_envelope(cache_db_env, mmapstr,
1238 session, msg->msg_index, msg->msg_fields);
1239 }
1240 }
1241
1242 if (msg->msg_flags != NULL) {
1243 r = mboxdriver_write_cached_flags(cache_db_flags, mmapstr,
1244 msg->msg_uid, msg->msg_flags);
1245 }
1246 }
1247
1248 /* flush cache */
1249
1250 maildriver_cache_clean_up(cache_db_env, cache_db_flags, env_list);
1251
1252 mail_cache_db_close_unlock(filename_flags, cache_db_flags);
1253 mail_cache_db_close_unlock(filename_env, cache_db_env);
1254
1255 mmap_string_free(mmapstr);
1256
1257 return MAIL_NO_ERROR;
1258
1259 close_db_env:
1260 mail_cache_db_close_unlock(filename_env, cache_db_env);
1261 free_mmapstr:
1262 mmap_string_free(mmapstr);
1263 err:
1264 return res;
1265}
1266
1267
1268static int
1269mboxdriver_cached_remove_message(mailsession * session, uint32_t num)
1270{
1271 return mailsession_remove_message(get_ancestor(session), num);
1272}
1273
1274static int mboxdriver_cached_get_message(mailsession * session,
1275 uint32_t num, mailmessage ** result)
1276{
1277 mailmessage * msg_info;
1278 int r;
1279
1280 msg_info = mailmessage_new();
1281 if (msg_info == NULL)
1282 return MAIL_ERROR_MEMORY;
1283
1284 r = mailmessage_init(msg_info, session, mbox_cached_message_driver, num, 0);
1285 if (r != MAIL_NO_ERROR) {
1286 mailmessage_free(msg_info);
1287 return r;
1288 }
1289
1290 * result = msg_info;
1291
1292 return MAIL_NO_ERROR;
1293}
1294
1295static int mboxdriver_cached_get_message_by_uid(mailsession * session,
1296 const char * uid,
1297 mailmessage ** result)
1298{
1299 uint32_t num;
1300 char * p;
1301 chashdatum key;
1302 chashdatum data;
1303 struct mailmbox_msg_info * info;
1304 struct mailmbox_folder * folder;
1305 int r;
1306
1307 if (uid == NULL)
1308 return MAIL_ERROR_INVAL;
1309
1310 num = strtoul(uid, &p, 10);
1311 if (p == uid || * p != '-')
1312 return MAIL_ERROR_INVAL;
1313
1314 folder = get_mbox_session(session);
1315 if (folder == NULL)
1316 return MAIL_ERROR_BAD_STATE;
1317
1318 key.data = &num;
1319 key.len = sizeof(num);
1320
1321 r = chash_get(folder->mb_hash, &key, &data);
1322 if (r == 0) {
1323 char * body_len_p = p + 1;
1324 size_t body_len;
1325
1326 info = data.data;
1327 /* Check if the cached message has the same UID */
1328 body_len = strtoul(body_len_p, &p, 10);
1329 if (p == body_len_p || * p != '\0')
1330 return MAIL_ERROR_INVAL;
1331
1332 if (body_len == info->msg_body_len)
1333 return mboxdriver_cached_get_message(session, num, result);
1334 }
1335
1336 return MAIL_ERROR_MSG_NOT_FOUND;
1337}