mail-namespace.c revision de83c1e095ba081ef80f630bcd933e5e28aff94b
b9f30617c2c96d54acbc4f85ed17b939c4f28916Timo Sirainen/* Copyright (c) 2005-2012 Dovecot authors, see the included COPYING file */
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "lib.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "array.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "str.h"
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen#include "file-lock.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "settings-parser.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "mailbox-list-private.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "mail-storage-private.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "mail-storage-settings.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include "mail-namespace.h"
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen#include <stdlib.h>
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainenvoid mail_namespace_add_storage(struct mail_namespace *ns,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen struct mail_storage *storage)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen{
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen /* currently we support only a single storage */
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen i_assert(ns->storage == NULL);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->storage = storage;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (storage->v.add_list != NULL)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen storage->v.add_list(storage, ns->list);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen hook_mail_namespace_storage_added(ns);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen}
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainenvoid mail_namespace_finish_list_init(struct mail_namespace *ns,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen struct mailbox_list *list)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen{
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->list = list;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->prefix_len = strlen(ns->prefix);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen}
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainenstatic void mail_namespace_free(struct mail_namespace *ns)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen{
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns->storage != NULL)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen mail_storage_unref(&ns->storage);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns->list != NULL)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen mailbox_list_destroy(&ns->list);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns->owner != ns->user && ns->owner != NULL)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen mail_user_unref(&ns->owner);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen i_free(ns->prefix);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen i_free(ns);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen}
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainenstatic int
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainennamespace_add(struct mail_user *user,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen struct mail_namespace_settings *ns_set,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen struct mail_namespace_settings *unexpanded_ns_set,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen const struct mail_storage_settings *mail_set,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen struct mail_namespace **ns_p, const char **error_r)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen{
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen struct mail_namespace *ns;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen const char *driver, *error;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns = i_new(struct mail_namespace, 1);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->refcount = 1;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->user = user;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (strncmp(ns_set->type, "private", 7) == 0) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->owner = user;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->type = NAMESPACE_PRIVATE;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen } else if (strncmp(ns_set->type, "shared", 6) == 0)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->type = NAMESPACE_SHARED;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen else if (strncmp(ns_set->type, "public", 6) == 0)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->type = NAMESPACE_PUBLIC;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen else {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf("Unknown namespace type: %s",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->type);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen mail_namespace_free(ns);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return -1;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (strcmp(ns_set->list, "children") == 0)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->flags |= NAMESPACE_FLAG_LIST_CHILDREN;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen else if (strcmp(ns_set->list, "yes") == 0)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->flags |= NAMESPACE_FLAG_LIST_PREFIX;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen else if (strcmp(ns_set->list, "no") != 0) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf("Invalid list setting value: %s",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->list);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen mail_namespace_free(ns);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return -1;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns_set->inbox) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->flags |= NAMESPACE_FLAG_INBOX_USER |
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen NAMESPACE_FLAG_INBOX_ANY;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns_set->hidden)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->flags |= NAMESPACE_FLAG_HIDDEN;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns_set->subscriptions)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->flags |= NAMESPACE_FLAG_SUBSCRIPTIONS;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (*ns_set->location == '\0')
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->location = mail_set->mail_location;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (mail_set->mail_debug) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen i_debug("Namespace %s: type=%s, prefix=%s, sep=%s, "
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen "inbox=%s, hidden=%s, list=%s, subscriptions=%s "
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen "location=%s",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->name, ns_set->type, ns_set->prefix,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->separator == NULL ? "" : ns_set->separator,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->inbox ? "yes" : "no",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->hidden ? "yes" : "no",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->list,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_set->subscriptions ? "yes" : "no", ns_set->location);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->set = ns_set;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->unexpanded_set = unexpanded_ns_set;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->mail_set = mail_set;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->prefix = i_strdup(ns_set->prefix);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns->type == NAMESPACE_SHARED &&
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen (strchr(ns->prefix, '%') != NULL ||
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen strchr(ns->set->location, '%') != NULL)) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen /* dynamic shared namespace. the above check catches wrong
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen mixed %% usage, but still allows for specifying a shared
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen namespace to an explicit location without any %% */
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->flags |= NAMESPACE_FLAG_NOQUOTA | NAMESPACE_FLAG_NOACL;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen driver = "shared";
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen } else {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen driver = NULL;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (mail_storage_create(ns, driver, 0, &error) < 0) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf("Namespace '%s': %s",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->prefix, error);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen mail_namespace_free(ns);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return -1;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *ns_p = ns;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return 0;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen}
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainenstatic bool namespace_is_valid_alias_storage(struct mail_namespace *ns,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen const char **error_r)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen{
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (strcmp(ns->storage->name, ns->alias_for->storage->name) != 0) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf(
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen "Namespace %s can't have alias_for=%s "
b215a8a123623782554a83f3025ef4e771bd8f01Timo Sirainen "to a different storage type (%s vs %s)",
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen ns->prefix, ns->alias_for->prefix,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->storage->name, ns->alias_for->storage->name);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return FALSE;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if ((ns->storage->class_flags & MAIL_STORAGE_CLASS_FLAG_UNIQUE_ROOT) != 0 &&
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->storage != ns->alias_for->storage) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf(
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen "Namespace %s can't have alias_for=%s "
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen "to a different storage (different root dirs)",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->prefix, ns->alias_for->prefix);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return FALSE;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return TRUE;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen}
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainenstatic int
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainennamespace_set_alias_for(struct mail_namespace *ns,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen struct mail_namespace *all_namespaces,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen const char **error_r)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen{
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns->set->alias_for != NULL) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->alias_for = mail_namespace_find_prefix(all_namespaces,
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->set->alias_for);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns->alias_for == NULL) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf("Invalid namespace alias_for: %s",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->set->alias_for);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return -1;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (ns->alias_for->alias_for != NULL) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf("Chained namespace alias_for: %s",
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns->set->alias_for);
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen return -1;
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (!namespace_is_valid_alias_storage(ns, error_r))
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen return -1;
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen ns->alias_chain_next = ns->alias_for->alias_chain_next;
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen ns->alias_for->alias_chain_next = ns;
b215a8a123623782554a83f3025ef4e771bd8f01Timo Sirainen }
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen return 0;
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen}
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainenstatic bool
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainennamespaces_check(struct mail_namespace *namespaces, const char **error_r)
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen{
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen struct mail_namespace *ns, *inbox_ns = NULL;
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen unsigned int subscriptions_count = 0;
b215a8a123623782554a83f3025ef4e771bd8f01Timo Sirainen char ns_sep, list_sep = '\0';
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen
d176f84ce5ca2073f4dfbafb457b9c74f6bf0d76Timo Sirainen for (ns = namespaces; ns != NULL; ns = ns->next) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen ns_sep = mail_namespace_get_sep(ns);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (mail_namespace_find_prefix(ns->next, ns->prefix) != NULL) {
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen *error_r = t_strdup_printf(
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen "Duplicate namespace prefix: \"%s\"",
b215a8a123623782554a83f3025ef4e771bd8f01Timo Sirainen ns->prefix);
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return FALSE;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen }
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if (namespace_set_alias_for(ns, namespaces, error_r) < 0)
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen return FALSE;
a64adf62fa33f2463a86f990217b0c9078531a40Timo Sirainen if ((ns->flags & NAMESPACE_FLAG_INBOX_USER) != 0) {
if (inbox_ns != NULL) {
*error_r = "There can be only one namespace with "
"inbox=yes";
return FALSE;
}
inbox_ns = ns;
}
if (*ns->prefix != '\0' &&
(ns->flags & (NAMESPACE_FLAG_LIST_PREFIX |
NAMESPACE_FLAG_LIST_CHILDREN)) != 0 &&
ns->prefix[strlen(ns->prefix)-1] != ns_sep) {
*error_r = t_strdup_printf(
"list=yes requires prefix=%s "
"to end with separator", ns->prefix);
return FALSE;
}
if (*ns->prefix != '\0' &&
(ns->flags & (NAMESPACE_FLAG_LIST_PREFIX |
NAMESPACE_FLAG_LIST_CHILDREN)) != 0 &&
ns->prefix[0] == ns_sep) {
*error_r = t_strdup_printf(
"list=yes requires prefix=%s "
"not to start with separator", ns->prefix);
return FALSE;
}
if ((ns->flags & (NAMESPACE_FLAG_LIST_PREFIX |
NAMESPACE_FLAG_LIST_CHILDREN)) != 0) {
if (list_sep == '\0')
list_sep = ns_sep;
else if (list_sep != ns_sep) {
*error_r = "All list=yes namespaces must use "
"the same separator";
return FALSE;
}
}
if ((ns->flags & NAMESPACE_FLAG_SUBSCRIPTIONS) != 0)
subscriptions_count++;
}
if (inbox_ns == NULL) {
*error_r = "inbox=yes namespace missing";
return FALSE;
}
if (list_sep == '\0') {
*error_r = "no list=yes namespaces";
return FALSE;
}
if (subscriptions_count == 0) {
*error_r = "no subscriptions=yes namespaces";
return FALSE;
}
return TRUE;
}
int mail_namespaces_init(struct mail_user *user, const char **error_r)
{
const struct mail_storage_settings *mail_set;
struct mail_namespace_settings *const *ns_set;
struct mail_namespace_settings *const *unexpanded_ns_set;
struct mail_namespace *namespaces, *ns, **ns_p;
unsigned int i, count, count2;
i_assert(user->initialized);
namespaces = NULL; ns_p = &namespaces;
mail_set = mail_user_set_get_storage_set(user);
if (array_is_created(&user->set->namespaces)) {
ns_set = array_get(&user->set->namespaces, &count);
unexpanded_ns_set =
array_get(&user->unexpanded_set->namespaces, &count2);
i_assert(count == count2);
} else {
ns_set = unexpanded_ns_set = NULL;
count = 0;
}
for (i = 0; i < count; i++) {
if (namespace_add(user, ns_set[i], unexpanded_ns_set[i],
mail_set, ns_p, error_r) < 0) {
if (!ns_set[i]->ignore_on_failure)
return -1;
if (mail_set->mail_debug) {
i_debug("Skipping namespace %s: %s",
ns_set[i]->prefix, *error_r);
}
} else {
ns_p = &(*ns_p)->next;
}
}
if (namespaces != NULL) {
if (!namespaces_check(namespaces, error_r)) {
*error_r = t_strconcat("namespace configuration error: ",
*error_r, NULL);
while (namespaces != NULL) {
ns = namespaces;
namespaces = ns->next;
mail_namespace_free(ns);
}
return -1;
}
mail_user_add_namespace(user, &namespaces);
T_BEGIN {
hook_mail_namespaces_created(namespaces);
} T_END;
return 0;
}
/* no namespaces defined, create a default one */
return mail_namespaces_init_location(user, NULL, error_r);
}
int mail_namespaces_init_location(struct mail_user *user, const char *location,
const char **error_r)
{
struct mail_namespace_settings *inbox_set, *unexpanded_inbox_set;
struct mail_namespace *ns;
const struct mail_storage_settings *mail_set, *unexpanded_mail_set;
const char *error, *driver, *location_source;
i_assert(location == NULL || *location != '\0');
ns = i_new(struct mail_namespace, 1);
ns->refcount = 1;
ns->type = NAMESPACE_PRIVATE;
ns->flags = NAMESPACE_FLAG_INBOX_USER | NAMESPACE_FLAG_INBOX_ANY |
NAMESPACE_FLAG_LIST_PREFIX | NAMESPACE_FLAG_SUBSCRIPTIONS;
ns->owner = user;
inbox_set = p_new(user->pool, struct mail_namespace_settings, 1);
*inbox_set = mail_namespace_default_settings;
inbox_set->inbox = TRUE;
unexpanded_inbox_set = p_new(user->pool, struct mail_namespace_settings, 1);
*unexpanded_inbox_set = *inbox_set;
driver = NULL;
mail_set = mail_user_set_get_storage_set(user);
if (location != NULL) {
inbox_set->location = p_strdup(user->pool, location);
location_source = "mail_location parameter";
} else if (*mail_set->mail_location != '\0') {
unexpanded_mail_set = mail_user_set_get_driver_settings(
user->set_info, user->unexpanded_set,
MAIL_STORAGE_SET_DRIVER_NAME);
inbox_set->location = mail_set->mail_location;
unexpanded_inbox_set->location =
unexpanded_mail_set->mail_location;
location_source = "mail_location setting";
} else {
location_source = "environment MAIL";
inbox_set->location = getenv("MAIL");
}
if (inbox_set->location == NULL) {
/* support also maildir-specific environment */
inbox_set->location = getenv("MAILDIR");
if (inbox_set->location == NULL)
inbox_set->location = "";
else {
driver = "maildir";
location_source = "environment MAILDIR";
}
}
if (*unexpanded_inbox_set->location == '\0') {
unexpanded_inbox_set->location =
p_strconcat(user->pool, SETTING_STRVAR_EXPANDED,
inbox_set->location, NULL);
}
ns->set = inbox_set;
ns->unexpanded_set = unexpanded_inbox_set;
ns->mail_set = mail_set;
ns->prefix = i_strdup(ns->set->prefix);
ns->user = user;
if (mail_storage_create(ns, driver, 0, &error) < 0) {
if (*inbox_set->location != '\0') {
*error_r = t_strdup_printf(
"Initializing mail storage from %s "
"failed: %s", location_source, error);
} else {
*error_r = t_strdup_printf("mail_location not set and "
"autodetection failed: %s", error);
}
mail_namespace_free(ns);
return -1;
}
user->namespaces = ns;
T_BEGIN {
hook_mail_namespaces_created(ns);
} T_END;
return 0;
}
struct mail_namespace *mail_namespaces_init_empty(struct mail_user *user)
{
struct mail_namespace *ns;
ns = i_new(struct mail_namespace, 1);
ns->refcount = 1;
ns->user = user;
ns->owner = user;
ns->prefix = i_strdup("");
ns->flags = NAMESPACE_FLAG_INBOX_USER | NAMESPACE_FLAG_INBOX_ANY |
NAMESPACE_FLAG_LIST_PREFIX | NAMESPACE_FLAG_SUBSCRIPTIONS;
ns->mail_set = mail_user_set_get_storage_set(user);
user->namespaces = ns;
return ns;
}
void mail_namespaces_deinit(struct mail_namespace **_namespaces)
{
struct mail_namespace *ns, *next;
/* update *_namespaces as needed, instead of immediately setting it
to NULL. for example mdbox_storage.destroy() wants to go through
user's namespaces. */
while (*_namespaces != NULL) {
ns = *_namespaces;
next = ns->next;
mail_namespace_free(ns);
*_namespaces = next;
}
}
void mail_namespaces_set_storage_callbacks(struct mail_namespace *namespaces,
struct mail_storage_callbacks *callbacks,
void *context)
{
struct mail_namespace *ns;
for (ns = namespaces; ns != NULL; ns = ns->next)
mail_storage_set_callbacks(ns->storage, callbacks, context);
}
void mail_namespace_ref(struct mail_namespace *ns)
{
i_assert(ns->refcount > 0);
ns->refcount++;
}
void mail_namespace_unref(struct mail_namespace **_ns)
{
struct mail_namespace *ns = *_ns;
i_assert(ns->refcount > 0);
*_ns = NULL;
if (--ns->refcount > 0)
return;
i_assert(ns->destroyed);
mail_namespace_free(ns);
}
void mail_namespace_destroy(struct mail_namespace *ns)
{
struct mail_namespace **nsp;
i_assert(!ns->destroyed);
/* remove from user's namespaces list */
for (nsp = &ns->user->namespaces; *nsp != NULL; nsp = &(*nsp)->next) {
if (*nsp == ns) {
*nsp = ns->next;
break;
}
}
ns->destroyed = TRUE;
mail_namespace_unref(&ns);
}
struct mail_storage *
mail_namespace_get_default_storage(struct mail_namespace *ns)
{
/* currently we don't support more than one storage per namespace */
return ns->storage;
}
char mail_namespace_get_sep(struct mail_namespace *ns)
{
return *ns->set->separator != '\0' ? *ns->set->separator :
mailbox_list_get_hierarchy_sep(ns->list);
}
char mail_namespaces_get_root_sep(struct mail_namespace *namespaces)
{
while ((namespaces->flags & NAMESPACE_FLAG_LIST_PREFIX) == 0)
namespaces = namespaces->next;
return mail_namespace_get_sep(namespaces);
}
static bool mail_namespace_is_usable_prefix(struct mail_namespace *ns,
const char *mailbox, bool inbox)
{
if (strncmp(ns->prefix, mailbox, ns->prefix_len) == 0) {
/* true exact prefix match */
return TRUE;
}
if (inbox && strncmp(ns->prefix, "INBOX", 5) == 0 &&
strncmp(ns->prefix+5, mailbox+5, ns->prefix_len-5) == 0) {
/* we already checked that mailbox begins with case-insensitive
INBOX. this namespace also begins with INBOX and the rest
of the prefix matches too. */
return TRUE;
}
if (strncmp(ns->prefix, mailbox, ns->prefix_len-1) == 0 &&
mailbox[ns->prefix_len-1] == '\0' &&
ns->prefix[ns->prefix_len-1] == mail_namespace_get_sep(ns)) {
/* we're trying to access the namespace prefix itself */
return TRUE;
}
return FALSE;
}
static struct mail_namespace *
mail_namespace_find_mask(struct mail_namespace *namespaces, const char *box,
enum namespace_flags flags,
enum namespace_flags mask)
{
struct mail_namespace *ns = namespaces;
struct mail_namespace *best = NULL;
unsigned int best_len = 0;
bool inbox;
inbox = strncasecmp(box, "INBOX", 5) == 0;
if (inbox && box[5] == '\0') {
/* find the INBOX namespace */
while (ns != NULL) {
if ((ns->flags & NAMESPACE_FLAG_INBOX_USER) != 0 &&
(ns->flags & mask) == flags)
return ns;
if (*ns->prefix == '\0')
best = ns;
ns = ns->next;
}
return best;
}
for (; ns != NULL; ns = ns->next) {
if (ns->prefix_len >= best_len && (ns->flags & mask) == flags &&
mail_namespace_is_usable_prefix(ns, box, inbox)) {
best = ns;
best_len = ns->prefix_len;
}
}
return best;
}
static struct mail_namespace *
mail_namespace_find_shared(struct mail_namespace *ns, const char *mailbox)
{
struct mailbox_list *list = ns->list;
struct mail_storage *storage;
if (mailbox_list_get_storage(&list, mailbox, &storage) < 0)
return ns;
return mailbox_list_get_namespace(list);
}
struct mail_namespace *
mail_namespace_find(struct mail_namespace *namespaces, const char *mailbox)
{
struct mail_namespace *ns;
ns = mail_namespace_find_mask(namespaces, mailbox, 0, 0);
if (ns != NULL && ns->type == NAMESPACE_SHARED &&
(ns->flags & NAMESPACE_FLAG_AUTOCREATED) == 0) {
/* see if we need to autocreate a namespace for shared user */
if (strchr(mailbox, mail_namespace_get_sep(ns)) != NULL)
return mail_namespace_find_shared(ns, mailbox);
}
return ns;
}
struct mail_namespace *
mail_namespace_find_unalias(struct mail_namespace *namespaces,
const char **mailbox)
{
struct mail_namespace *ns;
const char *storage_name;
ns = mail_namespace_find(namespaces, *mailbox);
if (ns != NULL && ns->alias_for != NULL) {
storage_name =
mailbox_list_get_storage_name(ns->list, *mailbox);
ns = ns->alias_for;
*mailbox = mailbox_list_get_vname(ns->list, storage_name);
}
return ns;
}
struct mail_namespace *
mail_namespace_find_visible(struct mail_namespace *namespaces,
const char *mailbox)
{
return mail_namespace_find_mask(namespaces, mailbox, 0,
NAMESPACE_FLAG_HIDDEN);
}
struct mail_namespace *
mail_namespace_find_subscribable(struct mail_namespace *namespaces,
const char *mailbox)
{
return mail_namespace_find_mask(namespaces, mailbox,
NAMESPACE_FLAG_SUBSCRIPTIONS,
NAMESPACE_FLAG_SUBSCRIPTIONS);
}
struct mail_namespace *
mail_namespace_find_unsubscribable(struct mail_namespace *namespaces,
const char *mailbox)
{
return mail_namespace_find_mask(namespaces, mailbox,
0, NAMESPACE_FLAG_SUBSCRIPTIONS);
}
struct mail_namespace *
mail_namespace_find_inbox(struct mail_namespace *namespaces)
{
while ((namespaces->flags & NAMESPACE_FLAG_INBOX_USER) == 0)
namespaces = namespaces->next;
return namespaces;
}
struct mail_namespace *
mail_namespace_find_prefix(struct mail_namespace *namespaces,
const char *prefix)
{
struct mail_namespace *ns;
unsigned int len = strlen(prefix);
for (ns = namespaces; ns != NULL; ns = ns->next) {
if (ns->prefix_len == len &&
strcmp(ns->prefix, prefix) == 0)
return ns;
}
return NULL;
}
struct mail_namespace *
mail_namespace_find_prefix_nosep(struct mail_namespace *namespaces,
const char *prefix)
{
struct mail_namespace *ns;
unsigned int len = strlen(prefix);
for (ns = namespaces; ns != NULL; ns = ns->next) {
if (ns->prefix_len == len + 1 &&
strncmp(ns->prefix, prefix, len) == 0 &&
ns->prefix[len] == mail_namespace_get_sep(ns))
return ns;
}
return NULL;
}