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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:51:24 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:51:24 +0000
commitf7548d6d28c313cf80e6f3ef89aed16a19815df1 (patch)
treea3f6f2a3f247293bee59ecd28e8cd8ceb6ca064a /src/plugins/acl/acl-shared-storage.c
parentInitial commit. (diff)
downloaddovecot-f7548d6d28c313cf80e6f3ef89aed16a19815df1.tar.xz
dovecot-f7548d6d28c313cf80e6f3ef89aed16a19815df1.zip
Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/plugins/acl/acl-shared-storage.c')
-rw-r--r--src/plugins/acl/acl-shared-storage.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/plugins/acl/acl-shared-storage.c b/src/plugins/acl/acl-shared-storage.c
new file mode 100644
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--- /dev/null
+++ b/src/plugins/acl/acl-shared-storage.c
@@ -0,0 +1,103 @@
+/* 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);
+}