/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Authors: Michael Zucchi <notzed@helixcode.com>
*
* Copyright (C) 2000 Helix Code, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <config.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include "camel-local-store.h"
#include "camel-exception.h"
#include "camel-url.h"
#define d(x)
/* Returns the class for a CamelLocalStore */
#define CLOCALS_CLASS(so) CAMEL_LOCAL_STORE_CLASS (CAMEL_OBJECT_GET_CLASS(so))
#define CF_CLASS(so) CAMEL_FOLDER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
static CamelFolder *get_folder(CamelStore * store, const char *folder_name, guint32 flags, CamelException * ex);
static char *get_name(CamelService *service, gboolean brief);
static char *get_root_folder_name (CamelStore *store, CamelException *ex);
static char *get_default_folder_name (CamelStore *store, CamelException *ex);
static void rename_folder(CamelStore *store, const char *old_name, const char *new_name, CamelException *ex);
static char *get_folder_name(CamelStore *store, const char *folder_name, CamelException *ex);
static CamelFolderInfo *get_folder_info (CamelStore *store, const char *top,
gboolean fast, gboolean recursive,
gboolean subscribed_only,
CamelException *ex);
static void delete_folder(CamelStore *store, const char *folder_name, CamelException *ex);
static void rename_folder(CamelStore *store, const char *old, const char *new, CamelException *ex);
static void
camel_local_store_class_init (CamelLocalStoreClass *camel_local_store_class)
{
CamelStoreClass *camel_store_class = CAMEL_STORE_CLASS (camel_local_store_class);
CamelServiceClass *camel_service_class = CAMEL_SERVICE_CLASS (camel_local_store_class);
/* virtual method overload */
camel_service_class->get_name = get_name;
camel_store_class->get_folder = get_folder;
camel_store_class->get_root_folder_name = get_root_folder_name;
camel_store_class->get_default_folder_name = get_default_folder_name;
camel_store_class->get_folder_name = get_folder_name;
camel_store_class->get_folder_info = get_folder_info;
camel_store_class->free_folder_info = camel_store_free_folder_info_full;
camel_store_class->delete_folder = delete_folder;
camel_store_class->rename_folder = rename_folder;
}
static void
camel_local_store_init (gpointer object, gpointer klass)
{
CamelStore *store = CAMEL_STORE (object);
/* local names are filenames, so they are case-sensitive. */
if (store->folders)
g_hash_table_destroy(store->folders);
store->folders = g_hash_table_new (g_str_hash, g_str_equal);
}
CamelType
camel_local_store_get_type (void)
{
static CamelType camel_local_store_type = CAMEL_INVALID_TYPE;
if (camel_local_store_type == CAMEL_INVALID_TYPE) {
camel_local_store_type = camel_type_register (CAMEL_STORE_TYPE, "CamelLocalStore",
sizeof (CamelLocalStore),
sizeof (CamelLocalStoreClass),
(CamelObjectClassInitFunc) camel_local_store_class_init,
NULL,
(CamelObjectInitFunc) camel_local_store_init,
NULL);
}
return camel_local_store_type;
}
const char *
camel_local_store_get_toplevel_dir (CamelLocalStore *store)
{
CamelURL *url = CAMEL_SERVICE (store)->url;
g_assert (url != NULL);
return url->path;
}
static CamelFolder *
get_folder(CamelStore * store, const char *folder_name, guint32 flags, CamelException * ex)
{
struct stat st;
char *path = ((CamelService *)store)->url->path;
char *sub, *slash;
if (path[0] != '/') {
camel_exception_setv(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Store root %s is not an absolute path"), path);
return NULL;
}
if (stat(path, &st) == 0) {
if (!S_ISDIR(st.st_mode)) {
camel_exception_setv(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Store root %s is not a regular directory"), path);
}
return NULL;
}
if (errno != ENOENT
|| (flags & CAMEL_STORE_FOLDER_CREATE) == 0) {
camel_exception_setv(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Cannot get folder: %s: %s"), path, strerror(errno));
return NULL;
}
/* need to create the dir heirarchy */
sub = alloca(strlen(path)+1);
strcpy(sub, path);
slash = sub;
do {
slash = strchr(slash+1, '/');
if (slash)
*slash = 0;
if (stat(sub, &st) == -1) {
if (errno != ENOENT
|| mkdir(sub, 0700) == -1) {
camel_exception_setv(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Cannot get folder: %s: %s"), path, strerror(errno));
return NULL;
}
}
if (slash)
*slash = '/';
} while (slash);
return NULL;
}
static char *
get_root_folder_name(CamelStore *store, CamelException *ex)
{
camel_exception_set(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Local stores do not have a root folder"));
return NULL;
}
static char *
get_default_folder_name(CamelStore *store, CamelException *ex)
{
camel_exception_set(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Local stores do not have a default folder"));
return NULL;
}
static char *
get_folder_name (CamelStore *store, const char *folder_name, CamelException *ex)
{
/* For now, we don't allow hieararchy. FIXME. */
if (strchr (folder_name + 1, '/')) {
camel_exception_set (ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Local folders may not be nested."));
return NULL;
}
return *folder_name == '/' ? g_strdup (folder_name) :
g_strdup_printf ("/%s", folder_name);
}
static char *
get_name (CamelService *service, gboolean brief)
{
if (brief)
return g_strdup (service->url->path);
else
return g_strdup_printf (_("Local mail file %s"), service->url->path);
}
static CamelFolderInfo *
get_folder_info (CamelStore *store, const char *top,
gboolean fast, gboolean recursive,
gboolean subscribed_only,
CamelException *ex)
{
/* FIXME: This is broken, but it corresponds to what was
* there before.
*/
return NULL;
}
static int xrename(const char *oldp, const char *newp, const char *prefix, const char *suffix, int missingok, CamelException *ex)
{
struct stat st;
char *old = g_strconcat(prefix, oldp, suffix, 0);
char *new = g_strconcat(prefix, newp, suffix, 0);
int ret = -1;
int err = 0;
d(printf("renaming %s%s to %s%s\n", oldp, suffix, newp, suffix));
if (stat(old, &st) == -1) {
if (missingok && errno == ENOENT) {
ret = 0;
} else {
err = errno;
ret = -1;
}
} else if (S_ISDIR(st.st_mode)) { /* use rename for dirs */
if (rename(old, new) == 0
|| stat(new, &st) == 0) {
ret = 0;
} else {
err = errno;
ret = -1;
}
} else if (link(old, new) == 0 /* and link for files */
|| (stat(new, &st) == 0 && st.st_nlink == 2)) {
if (unlink(old) == 0) {
ret = 0;
} else {
err = errno;
unlink(new);
ret = -1;
}
} else {
err = errno;
ret = -1;
}
if (ret == -1) {
camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not rename folder %s to %s: %s"),
old, new, strerror(err));
}
g_free(old);
g_free(new);
return ret;
}
/* default implementation, rename all */
static void
rename_folder(CamelStore *store, const char *old, const char *new, CamelException *ex)
{
char *path = CAMEL_SERVICE (store)->url->path;
/* try to rollback failures, has obvious races */
if (xrename(old, new, path, ".ibex", TRUE, ex)) {
return;
}
if (xrename(old, new, path, ".ev-summary", TRUE, ex)) {
xrename(new, old, path, ".ibex", TRUE, ex);
return;
}
if (xrename(old, new, path, "", FALSE, ex)) {
xrename(new, old, path, ".ev-summary", TRUE, ex);
xrename(new, old, path, ".ibex", TRUE, ex);
}
}
/* default implementation, only delete metadata */
static void
delete_folder(CamelStore *store, const char *folder_name, CamelException *ex)
{
char *name;
char *str;
/* remove metadata only */
name = g_strdup_printf("%s%s", CAMEL_SERVICE(store)->url->path, folder_name);
str = g_strdup_printf("%s.ev-summary", name);
if (unlink(str) == -1 && errno != ENOENT) {
camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not delete folder summary file `%s': %s"),
str, strerror(errno));
g_free(str);
return;
}
g_free(str);
str = g_strdup_printf("%s.ibex", name);
if (unlink(str) == -1 && errno != ENOENT) {
camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not delete folder index file `%s': %s"),
str, strerror(errno));
g_free(str);
return;
}
g_free(str);
g_free(name);
}
