static void mailbox_list_try_delete(struct mailbox_list *list, const char *name,
enum mailbox_list_path_type type)
{
const char *mailbox_path, *path;
mailbox_path = mailbox_list_get_path(list, name,
MAILBOX_LIST_PATH_TYPE_MAILBOX);
path = mailbox_list_get_path(list, name, type);
if (path == NULL || *path == '\0' || strcmp(path, mailbox_path) == 0)
return;
if (*list->set.maildir_name == '\0' &&
(list->flags & MAILBOX_LIST_FLAG_MAILBOX_FILES) == 0) {
/* this directory may contain also child mailboxes' data.
we don't want to delete that. */
bool rmdir_path = *list->set.maildir_name != '\0';
if (mailbox_list_delete_mailbox_nonrecursive(list, name, path,
rmdir_path) < 0)
return;
} else {
if (mailbox_list_delete_trash(path) < 0 &&
errno != ENOENT && errno != ENOTEMPTY) {
mailbox_list_set_critical(list,
"unlink_directory(%s) failed: %m", path);
}
}
/* avoid leaving empty directories lying around */
mailbox_list_delete_until_root(list, path, type);
}
static bool maildir_delete_trash_dir(struct maildir_list_iterate_context *ctx,
const char *fname)
{
const char *path, *error;
struct stat st;
if (fname[1] != ctx->prefix_char || ctx->prefix_char == '\0' ||
strcmp(fname+2, MAILBOX_LIST_MAILDIR_TRASH_DIR_NAME) != 0)
return FALSE;
/* this directory is in the middle of being deleted, or the process
trying to delete it had died. delete it ourself if it's been there
longer than one hour. */
path = t_strdup_printf("%s/%s", ctx->dir, fname);
if (stat(path, &st) == 0 &&
st.st_mtime < ioloop_time - 3600)
(void)mailbox_list_delete_trash(path, &error);
return TRUE;
}
int mailbox_list_delete_maildir_via_trash(struct mailbox_list *list,
const char *name,
const char *trash_dir)
{
const char *src, *trash_dest;
unsigned int count;
src = mailbox_list_get_path(list, name, MAILBOX_LIST_PATH_TYPE_MAILBOX);
if (mailbox_list_check_root_delete(list, name, src) < 0)
return -1;
/* rename the mailbox dir to trash dir, which atomically
marks it as being deleted. */
count = 0; trash_dest = trash_dir;
for (; rename(src, trash_dest) < 0; count++) {
if (ENOTFOUND(errno)) {
if (trash_dest != trash_dir && count < 5) {
/* either the source was just deleted or
the trash dir was deleted. */
trash_dest = trash_dir;
continue;
}
mailbox_list_set_error(list, MAIL_ERROR_NOTFOUND,
T_MAIL_ERR_MAILBOX_NOT_FOUND(name));
return -1;
}
if (errno == EXDEV) {
/* can't do this the fast way */
return 0;
}
if (!EDESTDIREXISTS(errno)) {
if (mailbox_list_set_error_from_errno(list))
return -1;
mailbox_list_set_critical(list,
"rename(%s, %s) failed: %m", src, trash_dest);
return -1;
}
/* trash dir already exists. the reasons for this are:
a) another process is in the middle of deleting it
b) previous process crashed and didn't delete it
c) NFS: mailbox was recently deleted, but some connection
still has that mailbox open. the directory contains .nfs*
files that can't be deleted until the mailbox is closed.
Because of c) we'll first try to rename the mailbox under
the trash directory and only later try to delete the entire
trash directory. */
if (trash_dir == trash_dest) {
trash_dest = t_strconcat(trash_dir, "/",
unique_fname(), NULL);
} else if (mailbox_list_delete_trash(trash_dest) < 0 &&
(errno != ENOTEMPTY || count >= 5)) {
mailbox_list_set_critical(list,
"unlink_directory(%s) failed: %m", trash_dest);
return -1;
}
}
if (mailbox_list_delete_trash(trash_dir) < 0 &&
errno != ENOTEMPTY && errno != EBUSY) {
mailbox_list_set_critical(list,
"unlink_directory(%s) failed: %m", trash_dir);
/* it's already renamed to trash dir, which means it's
deleted as far as the client is concerned. Report
success. */
}
return 1;
}
int mailbox_list_delete_mailbox_nonrecursive(struct mailbox_list *list,
const char *name, const char *path,
bool rmdir_path)
{
DIR *dir;
struct dirent *d;
string_t *full_path;
unsigned int dir_len;
bool mailbox_dir, unlinked_something = FALSE;
if (mailbox_list_check_root_delete(list, name, path) < 0)
return -1;
dir = opendir(path);
if (dir == NULL) {
if (errno == ENOENT) {
mailbox_list_set_error(list, MAIL_ERROR_NOTFOUND,
T_MAIL_ERR_MAILBOX_NOT_FOUND(name));
} else {
if (!mailbox_list_set_error_from_errno(list)) {
mailbox_list_set_critical(list,
"opendir(%s) failed: %m", path);
}
}
return -1;
}
full_path = t_str_new(256);
str_append(full_path, path);
str_append_c(full_path, '/');
dir_len = str_len(full_path);
for (errno = 0; (d = readdir(dir)) != NULL; errno = 0) {
if (d->d_name[0] == '.') {
/* skip . and .. */
if (d->d_name[1] == '\0')
continue;
if (d->d_name[1] == '.' && d->d_name[2] == '\0')
continue;
}
mailbox_dir = list->v.is_internal_name != NULL &&
list->v.is_internal_name(list, d->d_name);
str_truncate(full_path, dir_len);
str_append(full_path, d->d_name);
if (mailbox_dir) {
if (mailbox_list_delete_trash(str_c(full_path)) < 0) {
mailbox_list_set_critical(list,
"unlink_directory(%s) failed: %m",
str_c(full_path));
} else {
unlinked_something = TRUE;
}
continue;
}
/* trying to unlink() a directory gives either EPERM or EISDIR
(non-POSIX). it doesn't really work anywhere in practise,
so don't bother stat()ing the file first */
if (unlink(str_c(full_path)) == 0)
unlinked_something = TRUE;
else if (errno != ENOENT && errno != EISDIR && errno != EPERM) {
mailbox_list_set_critical(list,
"unlink_directory(%s) failed: %m",
str_c(full_path));
}
}
if (errno != 0)
mailbox_list_set_critical(list, "readdir(%s) failed: %m", path);
if (closedir(dir) < 0) {
mailbox_list_set_critical(list, "closedir(%s) failed: %m",
path);
}
if (rmdir_path) {
if (rmdir(path) == 0)
unlinked_something = TRUE;
else if (errno != ENOENT &&
errno != ENOTEMPTY && errno != EEXIST) {
mailbox_list_set_critical(list, "rmdir(%s) failed: %m",
path);
return -1;
}
}
if (!unlinked_something) {
mailbox_list_set_error(list, MAIL_ERROR_NOTPOSSIBLE,
"Mailbox has children, can't delete it");
return -1;
}
return 0;
}
