/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Authors: Michael Zucchi <notzed@ximian.com>
*
* Copyright (C) 2000 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <glib.h>
#include "camel-private.h"
#include "camel-local-store.h"
#include "camel-exception.h"
#include "camel-url.h"
#include "camel-local-folder.h"
#include <camel/camel-text-index.h>
#include <camel/camel-file-utils.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 void construct (CamelService *service, CamelSession *session, CamelProvider *provider, CamelURL *url, CamelException *ex);
static CamelFolder *get_folder(CamelStore * store, const char *folder_name, guint32 flags, CamelException * ex);
static char *get_name(CamelService *service, gboolean brief);
static CamelFolder *get_inbox (CamelStore *store, CamelException *ex);
static CamelFolderInfo *get_folder_info (CamelStore *store, const char *top, guint32 flags, 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 CamelFolderInfo *create_folder(CamelStore *store, const char *parent_name, const char *folder_name, CamelException *ex);
static CamelStoreClass *parent_class = NULL;
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);
parent_class = CAMEL_STORE_CLASS (camel_type_get_global_classfuncs (camel_store_get_type ()));
/* virtual method overload */
camel_service_class->construct = construct;
camel_service_class->get_name = get_name;
camel_store_class->get_folder = get_folder;
camel_store_class->get_inbox = get_inbox;
camel_store_class->get_folder_info = get_folder_info;
camel_store_class->free_folder_info = camel_store_free_folder_info_full;
camel_store_class->create_folder = create_folder;
camel_store_class->delete_folder = delete_folder;
camel_store_class->rename_folder = rename_folder;
}
static void
camel_local_store_finalize (CamelLocalStore *local_store)
{
if (local_store->toplevel_dir)
g_free (local_store->toplevel_dir);
}
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,
NULL,
(CamelObjectFinalizeFunc) camel_local_store_finalize);
}
return camel_local_store_type;
}
static void
construct (CamelService *service, CamelSession *session, CamelProvider *provider, CamelURL *url, CamelException *ex)
{
CamelLocalStore *local_store = CAMEL_LOCAL_STORE (service);
int len;
CAMEL_SERVICE_CLASS (parent_class)->construct (service, session, provider, url, ex);
if (camel_exception_is_set (ex))
return;
len = strlen (service->url->path);
if (service->url->path[len - 1] != '/')
local_store->toplevel_dir = g_strdup_printf ("%s/", service->url->path);
else
local_store->toplevel_dir = g_strdup (service->url->path);
}
const char *
camel_local_store_get_toplevel_dir (CamelLocalStore *store)
{
return store->toplevel_dir;
}
static CamelFolder *
get_folder(CamelStore * store, const char *folder_name, guint32 flags, CamelException * ex)
{
char *path = ((CamelLocalStore *)store)->toplevel_dir;
struct stat st;
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;
}
return (CamelFolder *) 0xdeadbeef;
}
if (errno != ENOENT
|| (flags & CAMEL_STORE_FOLDER_CREATE) == 0) {
camel_exception_setv (ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Cannot get folder: %s: %s"),
path, g_strerror (errno));
return NULL;
}
/* need to create the dir heirarchy */
if (camel_mkdir (path, 0777) == -1 && errno != EEXIST) {
camel_exception_setv (ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Cannot get folder: %s: %s"),
path, g_strerror (errno));
return NULL;
}
return (CamelFolder *) 0xdeadbeef;
}
static CamelFolder *
get_inbox(CamelStore *store, CamelException *ex)
{
camel_exception_set(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Local stores do not have an inbox"));
return NULL;
}
static char *
get_name (CamelService *service, gboolean brief)
{
char *dir = ((CamelLocalStore*)service)->toplevel_dir;
if (brief)
return g_strdup (dir);
else
return g_strdup_printf (_("Local mail file %s"), dir);
}
static CamelFolderInfo *
get_folder_info (CamelStore *store, const char *top,
guint32 flags, CamelException *ex)
{
/* FIXME: This is broken, but it corresponds to what was
* there before.
*/
d(printf("-- LOCAL STORE -- get folder info: %s\n", top));
return NULL;
}
static CamelFolderInfo *
create_folder(CamelStore *store, const char *parent_name, const char *folder_name, CamelException *ex)
{
char *path = ((CamelLocalStore *)store)->toplevel_dir;
char *name;
CamelFolder *folder;
CamelFolderInfo *info = NULL;
struct stat st;
/* This is a pretty hacky version of create folder, but should basically work */
if (path[0] != '/') {
camel_exception_setv(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Store root %s is not an absolute path"), path);
return NULL;
}
if (parent_name)
name = g_strdup_printf("%s/%s/%s", path, parent_name, folder_name);
else
name = g_strdup_printf("%s/%s", path, folder_name);
if (stat(name, &st) == 0 || errno != ENOENT) {
camel_exception_setv (ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Cannot get folder: %s: %s"),
name, g_strerror (errno));
g_free(name);
return NULL;
}
g_free(name);
if (parent_name)
name = g_strdup_printf("%s/%s", parent_name, folder_name);
else
name = g_strdup_printf("%s", folder_name);
folder = ((CamelStoreClass *)((CamelObject *)store)->klass)->get_folder(store, name, CAMEL_STORE_FOLDER_CREATE, ex);
if (folder) {
camel_object_unref((CamelObject *)folder);
info = ((CamelStoreClass *)((CamelObject *)store)->klass)->get_folder_info(store, name, 0, ex);
/* get_folder(CREATE) will emit a folder_created event for us */
/*if (info)
camel_object_trigger_event((CamelObject *)store, "folder_created", info);*/
}
g_free(name);
return info;
}
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, g_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_LOCAL_STORE (store)->toplevel_dir;
CamelLocalFolder *folder = NULL;
char *newibex = g_strdup_printf("%s%s.ibex", path, new);
char *oldibex = g_strdup_printf("%s%s.ibex", path, old);
/* try to rollback failures, has obvious races */
d(printf("local rename folder '%s' '%s'\n", old, new));
folder = camel_object_bag_get(store->folders, old);
if (folder && folder->index) {
if (camel_index_rename(folder->index, newibex) == -1)
goto ibex_failed;
} else {
/* TODO: camel_text_index_rename should find out if we have an active index itself? */
if (camel_text_index_rename(oldibex, newibex) == -1)
goto ibex_failed;
}
if (xrename(old, new, path, ".ev-summary", TRUE, ex))
goto summary_failed;
if (xrename(old, new, path, ".cmeta", TRUE, ex))
goto cmeta_failed;
if (xrename(old, new, path, "", FALSE, ex))
goto base_failed;
g_free(newibex);
g_free(oldibex);
if (folder)
camel_object_unref(folder);
return;
/* The (f)utility of this recovery effort is quesitonable */
base_failed:
xrename(new, old, path, ".cmeta", TRUE, ex);
cmeta_failed:
xrename(new, old, path, ".ev-summary", TRUE, ex);
summary_failed:
if (folder) {
if (folder->index)
camel_index_rename(folder->index, oldibex);
} else
camel_text_index_rename(newibex, oldibex);
ibex_failed:
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not rename '%s': %s"),
old, g_strerror (errno));
g_free(newibex);
g_free(oldibex);
if (folder)
camel_object_unref(folder);
}
/* default implementation, only delete metadata */
static void
delete_folder(CamelStore *store, const char *folder_name, CamelException *ex)
{
CamelFolderInfo *fi;
CamelException lex;
CamelFolder *lf;
char *name;
char *str;
/* remove metadata only */
name = g_strdup_printf("%s%s", CAMEL_LOCAL_STORE(store)->toplevel_dir, 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, g_strerror (errno));
g_free(str);
g_free (name);
return;
}
g_free(str);
str = g_strdup_printf("%s.ibex", name);
if (camel_text_index_remove(str) == -1 && errno != ENOENT) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not delete folder index file `%s': %s"),
str, g_strerror (errno));
g_free(str);
g_free (name);
return;
}
g_free(str);
str = NULL;
camel_exception_init (&lex);
if ((lf = camel_store_get_folder (store, folder_name, 0, &lex))) {
camel_object_get (lf, NULL, CAMEL_OBJECT_STATE_FILE, &str, NULL);
camel_object_set (lf, NULL, CAMEL_OBJECT_STATE_FILE, NULL, NULL);
camel_object_unref (lf);
} else {
camel_exception_clear (&lex);
}
if (str == NULL)
str = g_strdup_printf ("%s.cmeta", name);
if (unlink (str) == -1 && errno != ENOENT) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not delete folder meta file `%s': %s"),
str, g_strerror (errno));
g_free (name);
g_free (str);
return;
}
g_free (str);
g_free (name);
fi = g_new0 (CamelFolderInfo, 1);
fi->full_name = g_strdup (folder_name);
fi->name = g_path_get_basename (folder_name);
fi->uri = g_strdup_printf ("%s:%s#%s", ((CamelService *) store)->url->protocol,
CAMEL_LOCAL_STORE(store)->toplevel_dir, folder_name);
fi->unread = -1;
camel_folder_info_build_path(fi, '/');
camel_object_trigger_event (store, "folder_deleted", fi);
camel_folder_info_free (fi);
}
