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
|
/* Copyright (c) 2005-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "ioloop.h"
#include "hash.h"
#include "mail-storage-private.h"
#include "mailbox-list-private.h"
#include "mailbox-guid-cache.h"
struct mailbox_guid_cache_rec {
guid_128_t guid;
const char *vname;
};
int mailbox_guid_cache_find(struct mailbox_list *list,
const guid_128_t guid, const char **vname_r)
{
const struct mailbox_guid_cache_rec *rec;
const uint8_t *guid_p = guid;
if (!hash_table_is_created(list->guid_cache) ||
list->guid_cache_invalidated) {
mailbox_guid_cache_refresh(list);
rec = hash_table_lookup(list->guid_cache, guid_p);
} else {
rec = hash_table_lookup(list->guid_cache, guid_p);
if (rec == NULL && list->guid_cache_updated) {
mailbox_guid_cache_refresh(list);
rec = hash_table_lookup(list->guid_cache, guid_p);
}
}
if (rec == NULL) {
*vname_r = NULL;
return list->guid_cache_errors ? -1 : 0;
}
*vname_r = rec->vname;
return 0;
}
static void mailbox_guid_cache_add_mailbox(struct mailbox_list *list,
const struct mailbox_info *info)
{
struct mailbox *box;
struct mailbox_metadata metadata;
struct mailbox_guid_cache_rec *rec;
uint8_t *guid_p;
box = mailbox_alloc(list, info->vname, 0);
if (mailbox_get_metadata(box, MAILBOX_METADATA_GUID,
&metadata) < 0) {
e_error(box->event, "Couldn't get mailbox GUID: %s",
mailbox_get_last_internal_error(box, NULL));
list->guid_cache_errors = TRUE;
} else if ((rec = hash_table_lookup(list->guid_cache,
(const uint8_t *)metadata.guid)) != NULL) {
e_warning(list->ns->user->event,
"Mailbox %s has duplicate GUID with %s: %s",
info->vname, rec->vname,
guid_128_to_string(metadata.guid));
} else {
rec = p_new(list->guid_cache_pool,
struct mailbox_guid_cache_rec, 1);
memcpy(rec->guid, metadata.guid, sizeof(rec->guid));
rec->vname = p_strdup(list->guid_cache_pool, info->vname);
guid_p = rec->guid;
hash_table_insert(list->guid_cache, guid_p, rec);
}
mailbox_free(&box);
}
void mailbox_guid_cache_refresh(struct mailbox_list *list)
{
struct mailbox_list_iterate_context *ctx;
const struct mailbox_info *info;
if (!hash_table_is_created(list->guid_cache)) {
list->guid_cache_pool =
pool_alloconly_create("guid cache", 1024*16);
hash_table_create(&list->guid_cache, list->guid_cache_pool, 0,
guid_128_hash, guid_128_cmp);
} else {
hash_table_clear(list->guid_cache, TRUE);
p_clear(list->guid_cache_pool);
}
list->guid_cache_invalidated = FALSE;
list->guid_cache_updated = FALSE;
list->guid_cache_errors = FALSE;
ctx = mailbox_list_iter_init(list, "*",
MAILBOX_LIST_ITER_SKIP_ALIASES |
MAILBOX_LIST_ITER_NO_AUTO_BOXES);
while ((info = mailbox_list_iter_next(ctx)) != NULL) {
if ((info->flags &
(MAILBOX_NOSELECT | MAILBOX_NONEXISTENT)) != 0)
continue;
T_BEGIN {
mailbox_guid_cache_add_mailbox(list, info);
} T_END;
}
if ((list->ns->prefix_len > 0) && !mail_namespace_prefix_is_inbox(list->ns)) {
/* Also check if namespace prefix is a selectable mailbox
and add it to cache. Does not need to include INBOX since
it is added separately by mailbox_list_iter_init above. */
const char *ns_vname = t_strndup(list->ns->prefix,
list->ns->prefix_len-1);
const struct mailbox_info ns_info = {
.vname = ns_vname,
.ns = list->ns,
};
struct mailbox *box = mailbox_alloc(list, ns_vname, 0);
enum mailbox_existence existence;
if (mailbox_exists(box, FALSE, &existence) == 0 &&
existence == MAILBOX_EXISTENCE_SELECT)
mailbox_guid_cache_add_mailbox(list, &ns_info);
mailbox_free(&box);
}
if (mailbox_list_iter_deinit(&ctx) < 0)
list->guid_cache_errors = TRUE;
}
|
