/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Copyright (C) 2000 Ximian, Inc.
*
* Authors: Michael Zucchi <notzed@ximian.com>
*
* 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/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <dirent.h>
#include "camel-maildir-store.h"
#include "camel-maildir-folder.h"
#include "camel-exception.h"
#include "camel-url.h"
#include "camel-private.h"
#include "camel-maildir-summary.h"
#define d(x)
static CamelLocalStoreClass *parent_class = NULL;
/* Returns the class for a CamelMaildirStore */
#define CMAILDIRS_CLASS(so) CAMEL_MAILDIR_STORE_CLASS (CAMEL_OBJECT_GET_CLASS(so))
#define CF_CLASS(so) CAMEL_FOLDER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
#define CMAILDIRF_CLASS(so) CAMEL_MAILDIR_FOLDER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
static CamelFolder *get_folder(CamelStore * store, const char *folder_name, guint32 flags, CamelException * ex);
static CamelFolder *get_inbox (CamelStore *store, CamelException *ex);
static void delete_folder(CamelStore * store, const char *folder_name, CamelException * ex);
static CamelFolderInfo * get_folder_info (CamelStore *store, const char *top, guint32 flags, CamelException *ex);
static void camel_maildir_store_class_init(CamelObjectClass * camel_maildir_store_class)
{
CamelStoreClass *camel_store_class = CAMEL_STORE_CLASS(camel_maildir_store_class);
/*CamelServiceClass *camel_service_class = CAMEL_SERVICE_CLASS(camel_maildir_store_class);*/
parent_class = (CamelLocalStoreClass *)camel_type_get_global_classfuncs(camel_local_store_get_type());
/* virtual method overload, use defaults for most */
camel_store_class->get_folder = get_folder;
camel_store_class->get_inbox = get_inbox;
camel_store_class->delete_folder = delete_folder;
camel_store_class->get_folder_info = get_folder_info;
camel_store_class->free_folder_info = camel_store_free_folder_info_full;
}
CamelType camel_maildir_store_get_type(void)
{
static CamelType camel_maildir_store_type = CAMEL_INVALID_TYPE;
if (camel_maildir_store_type == CAMEL_INVALID_TYPE) {
camel_maildir_store_type = camel_type_register(CAMEL_LOCAL_STORE_TYPE, "CamelMaildirStore",
sizeof(CamelMaildirStore),
sizeof(CamelMaildirStoreClass),
(CamelObjectClassInitFunc) camel_maildir_store_class_init,
NULL,
NULL,
NULL);
}
return camel_maildir_store_type;
}
static CamelFolder *
get_folder(CamelStore * store, const char *folder_name, guint32 flags, CamelException * ex)
{
char *name, *tmp, *cur, *new;
struct stat st;
CamelFolder *folder = NULL;
if (!((CamelStoreClass *)parent_class)->get_folder(store, folder_name, flags, ex))
return NULL;
name = g_strdup_printf("%s%s", CAMEL_LOCAL_STORE(store)->toplevel_dir, folder_name);
tmp = g_strdup_printf("%s/tmp", name);
cur = g_strdup_printf("%s/cur", name);
new = g_strdup_printf("%s/new", name);
if (stat(name, &st) == -1) {
if (errno != ENOENT) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Cannot get folder `%s': %s"),
folder_name, g_strerror (errno));
} else if ((flags & CAMEL_STORE_FOLDER_CREATE) == 0) {
camel_exception_setv (ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Cannot get folder `%s': folder does not exist."),
folder_name);
} else {
if (mkdir(name, 0700) != 0
|| mkdir(tmp, 0700) != 0
|| mkdir(cur, 0700) != 0
|| mkdir(new, 0700) != 0) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Cannot create folder `%s': %s"),
folder_name, g_strerror (errno));
rmdir(tmp);
rmdir(cur);
rmdir(new);
rmdir(name);
} else {
folder = camel_maildir_folder_new(store, folder_name, flags, ex);
}
}
} else if (!S_ISDIR(st.st_mode)
|| stat(tmp, &st) != 0 || !S_ISDIR(st.st_mode)
|| stat(cur, &st) != 0 || !S_ISDIR(st.st_mode)
|| stat(new, &st) != 0 || !S_ISDIR(st.st_mode)) {
camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM,
_("Cannot get folder `%s': not a maildir directory."), name);
} else if (flags & CAMEL_STORE_FOLDER_EXCL) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Cannot create folder `%s': folder exists."),
folder_name);
} else {
folder = camel_maildir_folder_new(store, folder_name, flags, ex);
}
g_free(name);
g_free(tmp);
g_free(cur);
g_free(new);
return folder;
}
static CamelFolder *
get_inbox (CamelStore *store, CamelException *ex)
{
return get_folder (store, ".", 0, ex);
}
static void delete_folder(CamelStore * store, const char *folder_name, CamelException * ex)
{
char *name, *tmp, *cur, *new;
struct stat st;
name = g_strdup_printf("%s%s", CAMEL_LOCAL_STORE(store)->toplevel_dir, folder_name);
tmp = g_strdup_printf("%s/tmp", name);
cur = g_strdup_printf("%s/cur", name);
new = g_strdup_printf("%s/new", name);
if (stat(name, &st) == -1 || !S_ISDIR(st.st_mode)
|| stat(tmp, &st) == -1 || !S_ISDIR(st.st_mode)
|| stat(cur, &st) == -1 || !S_ISDIR(st.st_mode)
|| stat(new, &st) == -1 || !S_ISDIR(st.st_mode)) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not delete folder `%s': %s"),
folder_name, errno ? g_strerror (errno) :
_("not a maildir directory"));
} else {
int err = 0;
/* remove subdirs first - will fail if not empty */
if (rmdir(cur) == -1 || rmdir(new) == -1) {
err = errno;
} else {
DIR *dir;
struct dirent *d;
/* for tmp (only), its contents is irrelevant */
dir = opendir(tmp);
if (dir) {
while ( (d=readdir(dir)) ) {
char *name = d->d_name, *file;
if (!strcmp(name, ".") || !strcmp(name, ".."))
continue;
file = g_strdup_printf("%s/%s", tmp, name);
unlink(file);
g_free(file);
}
closedir(dir);
}
if (rmdir(tmp) == -1 || rmdir(name) == -1)
err = errno;
}
if (err != 0) {
/* easier just to mkdir all (and let them fail), than remember what we got to */
mkdir(name, 0700);
mkdir(cur, 0700);
mkdir(new, 0700);
mkdir(tmp, 0700);
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not delete folder `%s': %s"),
folder_name, g_strerror (err));
} else {
/* and remove metadata */
((CamelStoreClass *)parent_class)->delete_folder(store, folder_name, ex);
}
}
g_free(name);
g_free(tmp);
g_free(cur);
g_free(new);
}
static void
maildir_rename_folder(CamelStore *store, const char *old, const char *new, CamelException *ex)
{
CamelFolder *folder;
if (strcmp(old, ".") == 0) {
camel_exception_setv(ex, CAMEL_EXCEPTION_STORE_NO_FOLDER,
_("Cannot rename folder: %s: Invalid operation"), _("Inbox"));
return;
}
((CamelStoreClass *)parent_class)->rename_folder(store, old, new, ex);
}
static CamelFolderInfo *camel_folder_info_new(CamelURL *url, const char *full, const char *name)
{
CamelFolderInfo *fi;
fi = g_malloc0(sizeof(*fi));
fi->uri = camel_url_to_string(url, 0);
fi->full_name = g_strdup(full);
if (!strcmp(full, ".")) {
fi->flags |= CAMEL_FOLDER_SYSTEM;
fi->name = g_strdup(_("Inbox"));
} else
fi->name = g_strdup(name);
fi->unread = -1;
fi->total = -1;
d(printf("Adding maildir info: '%s' '%s' '%s' '%s'\n", fi->path, fi->name, fi->full_name, fi->url));
return fi;
}
static void
fill_fi(CamelStore *store, CamelFolderInfo *fi, guint32 flags)
{
CamelFolder *folder;
folder = camel_object_bag_get(store->folders, fi->full_name);
if (folder == NULL
&& (flags & CAMEL_STORE_FOLDER_INFO_FAST) == 0)
folder = camel_store_get_folder(store, fi->full_name, 0, NULL);
if (folder) {
if ((flags & CAMEL_STORE_FOLDER_INFO_FAST) == 0)
camel_folder_refresh_info(folder, NULL);
fi->unread = camel_folder_get_unread_message_count(folder);
fi->total = camel_folder_get_message_count(folder);
camel_object_unref(folder);
} else {
char *path, *folderpath;
CamelFolderSummary *s;
const char *root;
/* This should be fast enough not to have to test for INFO_FAST */
root = camel_local_store_get_toplevel_dir((CamelLocalStore *)store);
path = g_strdup_printf("%s/%s.ev-summary", root, fi->full_name);
folderpath = g_strdup_printf("%s/%s", root, fi->full_name);
s = (CamelFolderSummary *)camel_maildir_summary_new(path, folderpath, NULL);
if (camel_folder_summary_header_load(s) != -1) {
fi->unread = s->unread_count;
fi->total = s->saved_count;
}
camel_object_unref(s);
g_free(folderpath);
g_free(path);
}
}
/* used to find out where we've visited already */
struct _inode {
dev_t dnode;
ino_t inode;
};
/* returns number of records found at or below this level */
static int scan_dir(CamelStore *store, GHashTable *visited, CamelURL *url, const char *path, guint32 flags, CamelFolderInfo *parent, CamelFolderInfo **fip, CamelException *ex)
{
DIR *dir;
struct dirent *d;
char *name, *tmp, *cur, *new;
const char *base, *root = ((CamelService *)store)->url->path;
CamelFolderInfo *fi = NULL;
struct stat st;
/* look for folders matching the right structure, recursively */
name = g_strdup_printf("%s/%s", root, path);
d(printf("checking dir '%s' part '%s' for maildir content\n", root, path));
tmp = g_strdup_printf("%s/tmp", name);
cur = g_strdup_printf("%s/cur", name);
new = g_strdup_printf("%s/new", name);
base = strrchr(path, '/');
if (base)
base++;
else
base = path;
camel_url_set_fragment(url, path);
fi = camel_folder_info_new(url, path, base);
fill_fi(store, fi, flags);
if (!(stat(tmp, &st) == 0 && S_ISDIR(st.st_mode)
&& stat(cur, &st) == 0 && S_ISDIR(st.st_mode)
&& stat(new, &st) == 0 && S_ISDIR(st.st_mode)))
fi->flags |= CAMEL_FOLDER_NOSELECT;
d(printf("found! uri = %s\n", fi->uri));
d(printf(" full_name = %s\n name = '%s'\n", fi->full_name, fi->name));
fi->parent = parent;
fi->next = *fip;
*fip = fi;
g_free(tmp);
g_free(cur);
g_free(new);
/* always look further if asked */
if (((flags & CAMEL_STORE_FOLDER_INFO_RECURSIVE) || parent == NULL)) {
int children = 0;
dir = opendir(name);
if (dir == NULL) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SYSTEM,
_("Could not scan folder `%s': %s"),
root, g_strerror (errno));
g_free(name);
return -1;
}
while ( (d = readdir(dir)) ) {
if (strcmp(d->d_name, "tmp") == 0
|| strcmp(d->d_name, "cur") == 0
|| strcmp(d->d_name, "new") == 0
|| strcmp(d->d_name, ".") == 0
|| strcmp(d->d_name, "..") == 0)
continue;
tmp = g_strdup_printf("%s/%s", name, d->d_name);
if (stat(tmp, &st) == 0 && S_ISDIR(st.st_mode)) {
struct _inode in = { st.st_dev, st.st_ino };
/* see if we've visited already */
if (g_hash_table_lookup(visited, &in) == NULL) {
struct _inode *inew = g_malloc(sizeof(*inew));
children++;
*inew = in;
g_hash_table_insert(visited, inew, inew);
new = g_strdup_printf("%s/%s", path, d->d_name);
if (scan_dir(store, visited, url, new, flags, fi, &fi->child, ex) == -1) {
g_free(tmp);
g_free(new);
closedir(dir);
return -1;
}
g_free(new);
}
}
g_free(tmp);
}
closedir(dir);
if (children)
fi->flags |= CAMEL_FOLDER_CHILDREN;
else
fi->flags |= CAMEL_FOLDER_NOCHILDREN;
}
g_free(name);
return 0;
}
static guint inode_hash(const void *d)
{
const struct _inode *v = d;
return v->inode ^ v->dnode;
}
static gboolean inode_equal(const void *a, const void *b)
{
const struct _inode *v1 = a, *v2 = b;
return v1->inode == v2->inode && v1->dnode == v2->dnode;
}
static void inode_free(void *k, void *v, void *d)
{
g_free(k);
}
static CamelFolderInfo *
get_folder_info (CamelStore *store, const char *top, guint32 flags, CamelException *ex)
{
CamelFolderInfo *fi = NULL;
CamelLocalStore *local_store = (CamelLocalStore *)store;
GHashTable *visited;
CamelURL *url;
visited = g_hash_table_new(inode_hash, inode_equal);
url = camel_url_new("maildir:", NULL);
camel_url_set_path(url, ((CamelService *)local_store)->url->path);
if (scan_dir(store, visited, url, top == NULL || top[0] == 0?".":top, flags, NULL, &fi, ex) == -1 && fi != NULL) {
camel_store_free_folder_info_full(store, fi);
fi = NULL;
}
camel_url_free(url);
g_hash_table_foreach(visited, inode_free, NULL);
g_hash_table_destroy(visited);
return fi;
}
