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
|
/* Copyright (c) 2008-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "array.h"
#include "ioloop.h"
#include "str.h"
#include "var-expand.h"
#include "acl-plugin.h"
#include "acl-lookup-dict.h"
#include "acl-shared-storage.h"
#include "index/shared/shared-storage.h"
#define SHARED_NS_RETRY_SECS (60*60)
static bool acl_ns_prefix_exists(struct mail_namespace *ns)
{
struct mailbox *box;
const char *vname;
enum mailbox_existence existence;
bool ret;
if (ns->list->mail_set->mail_shared_explicit_inbox)
return FALSE;
vname = t_strndup(ns->prefix, ns->prefix_len-1);
box = mailbox_alloc(ns->list, vname, 0);
ret = mailbox_exists(box, FALSE, &existence) == 0 &&
existence == MAILBOX_EXISTENCE_SELECT;
mailbox_free(&box);
return ret;
}
static void
acl_shared_namespace_add(struct mail_namespace *ns,
struct mail_storage *storage, const char *userdomain)
{
struct shared_storage *sstorage = (struct shared_storage *)storage;
struct mail_namespace *new_ns = ns;
struct mailbox_list_iterate_context *iter;
const struct mailbox_info *info;
const char *mailbox, *error;
string_t *str;
if (strcmp(ns->user->username, userdomain) == 0) {
/* skip ourself */
return;
}
const struct var_expand_table tab[] = {
{ 'u', userdomain, "user" },
{ 'n', t_strcut(userdomain, '@'), "username" },
{ 'd', i_strchr_to_next(userdomain, '@'), "domain" },
{ '\0', NULL, NULL }
};
str = t_str_new(128);
if (var_expand(str, sstorage->ns_prefix_pattern, tab, &error) <= 0) {
i_error("Failed to expand namespace prefix %s: %s",
sstorage->ns_prefix_pattern, error);
return;
}
mailbox = str_c(str);
if (shared_storage_get_namespace(&new_ns, &mailbox) < 0)
return;
/* check if there are any mailboxes really visible to us */
iter = mailbox_list_iter_init(new_ns->list, "*",
MAILBOX_LIST_ITER_RETURN_NO_FLAGS);
info = mailbox_list_iter_next(iter);
(void)mailbox_list_iter_deinit(&iter);
if (info == NULL && !acl_ns_prefix_exists(new_ns)) {
/* no visible mailboxes, remove the namespace */
mail_namespace_destroy(new_ns);
}
}
int acl_shared_namespaces_add(struct mail_namespace *ns)
{
struct acl_user *auser = ACL_USER_CONTEXT(ns->user);
struct acl_mailbox_list *alist = ACL_LIST_CONTEXT(ns->list);
struct mail_storage *storage = mail_namespace_get_default_storage(ns);
struct acl_lookup_dict_iter *iter;
const char *name;
i_assert(auser != NULL && alist != NULL);
i_assert(ns->type == MAIL_NAMESPACE_TYPE_SHARED);
i_assert(strcmp(storage->name, MAIL_SHARED_STORAGE_NAME) == 0);
if (ioloop_time < alist->last_shared_add_check + SHARED_NS_RETRY_SECS) {
/* already added, don't bother rechecking */
return 0;
}
alist->last_shared_add_check = ioloop_time;
iter = acl_lookup_dict_iterate_visible_init(auser->acl_lookup_dict);
while ((name = acl_lookup_dict_iterate_visible_next(iter)) != NULL) {
T_BEGIN {
acl_shared_namespace_add(ns, storage, name);
} T_END;
}
return acl_lookup_dict_iterate_visible_deinit(&iter);
}
|
